From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- drivers/scsi/lpfc/lpfc_init.c | 12621 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 12621 insertions(+) create mode 100644 drivers/scsi/lpfc/lpfc_init.c (limited to 'drivers/scsi/lpfc/lpfc_init.c') diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c new file mode 100644 index 000000000..c6caacaa3 --- /dev/null +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -0,0 +1,12621 @@ +/******************************************************************* + * This file is part of the Emulex Linux Device Driver for * + * Fibre Channel Host Bus Adapters. * + * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * + * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * + * Copyright (C) 2004-2016 Emulex. All rights reserved. * + * EMULEX and SLI are trademarks of Emulex. * + * www.broadcom.com * + * Portions Copyright (C) 2004-2005 Christoph Hellwig * + * * + * This program is free software; you can redistribute it and/or * + * modify it under the terms of version 2 of the GNU General * + * Public License as published by the Free Software Foundation. * + * This program is distributed in the hope that it will be useful. * + * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * + * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * + * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * + * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * + * TO BE LEGALLY INVALID. See the GNU General Public License for * + * more details, a copy of which can be found in the file COPYING * + * included with this package. * + *******************************************************************/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include + +#include + +#include "lpfc_hw4.h" +#include "lpfc_hw.h" +#include "lpfc_sli.h" +#include "lpfc_sli4.h" +#include "lpfc_nl.h" +#include "lpfc_disc.h" +#include "lpfc.h" +#include "lpfc_scsi.h" +#include "lpfc_nvme.h" +#include "lpfc_nvmet.h" +#include "lpfc_logmsg.h" +#include "lpfc_crtn.h" +#include "lpfc_vport.h" +#include "lpfc_version.h" +#include "lpfc_ids.h" + +char *_dump_buf_data; +unsigned long _dump_buf_data_order; +char *_dump_buf_dif; +unsigned long _dump_buf_dif_order; +spinlock_t _dump_buf_lock; + +/* Used when mapping IRQ vectors in a driver centric manner */ +uint16_t *lpfc_used_cpu; +uint32_t lpfc_present_cpu; + +static void lpfc_get_hba_model_desc(struct lpfc_hba *, uint8_t *, uint8_t *); +static int lpfc_post_rcv_buf(struct lpfc_hba *); +static int lpfc_sli4_queue_verify(struct lpfc_hba *); +static int lpfc_create_bootstrap_mbox(struct lpfc_hba *); +static int lpfc_setup_endian_order(struct lpfc_hba *); +static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *); +static void lpfc_free_els_sgl_list(struct lpfc_hba *); +static void lpfc_free_nvmet_sgl_list(struct lpfc_hba *); +static void lpfc_init_sgl_list(struct lpfc_hba *); +static int lpfc_init_active_sgl_array(struct lpfc_hba *); +static void lpfc_free_active_sgl(struct lpfc_hba *); +static int lpfc_hba_down_post_s3(struct lpfc_hba *phba); +static int lpfc_hba_down_post_s4(struct lpfc_hba *phba); +static int lpfc_sli4_cq_event_pool_create(struct lpfc_hba *); +static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *); +static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *); +static void lpfc_sli4_disable_intr(struct lpfc_hba *); +static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t); +static void lpfc_sli4_oas_verify(struct lpfc_hba *phba); + +static struct scsi_transport_template *lpfc_transport_template = NULL; +static struct scsi_transport_template *lpfc_vport_transport_template = NULL; +static DEFINE_IDR(lpfc_hba_index); +#define LPFC_NVMET_BUF_POST 254 + +/** + * lpfc_config_port_prep - Perform lpfc initialization prior to config port + * @phba: pointer to lpfc hba data structure. + * + * This routine will do LPFC initialization prior to issuing the CONFIG_PORT + * mailbox command. It retrieves the revision information from the HBA and + * collects the Vital Product Data (VPD) about the HBA for preparing the + * configuration of the HBA. + * + * Return codes: + * 0 - success. + * -ERESTART - requests the SLI layer to reset the HBA and try again. + * Any other value - indicates an error. + **/ +int +lpfc_config_port_prep(struct lpfc_hba *phba) +{ + lpfc_vpd_t *vp = &phba->vpd; + int i = 0, rc; + LPFC_MBOXQ_t *pmb; + MAILBOX_t *mb; + char *lpfc_vpd_data = NULL; + uint16_t offset = 0; + static char licensed[56] = + "key unlock for use with gnu public licensed code only\0"; + static int init_key = 1; + + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + phba->link_state = LPFC_HBA_ERROR; + return -ENOMEM; + } + + mb = &pmb->u.mb; + phba->link_state = LPFC_INIT_MBX_CMDS; + + if (lpfc_is_LC_HBA(phba->pcidev->device)) { + if (init_key) { + uint32_t *ptext = (uint32_t *) licensed; + + for (i = 0; i < 56; i += sizeof (uint32_t), ptext++) + *ptext = cpu_to_be32(*ptext); + init_key = 0; + } + + lpfc_read_nv(phba, pmb); + memset((char*)mb->un.varRDnvp.rsvd3, 0, + sizeof (mb->un.varRDnvp.rsvd3)); + memcpy((char*)mb->un.varRDnvp.rsvd3, licensed, + sizeof (licensed)); + + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, + "0324 Config Port initialization " + "error, mbxCmd x%x READ_NVPARM, " + "mbxStatus x%x\n", + mb->mbxCommand, mb->mbxStatus); + mempool_free(pmb, phba->mbox_mem_pool); + return -ERESTART; + } + memcpy(phba->wwnn, (char *)mb->un.varRDnvp.nodename, + sizeof(phba->wwnn)); + memcpy(phba->wwpn, (char *)mb->un.varRDnvp.portname, + sizeof(phba->wwpn)); + } + + /* + * Clear all option bits except LPFC_SLI3_BG_ENABLED, + * which was already set in lpfc_get_cfgparam() + */ + phba->sli3_options &= (uint32_t)LPFC_SLI3_BG_ENABLED; + + /* Setup and issue mailbox READ REV command */ + lpfc_read_rev(phba, pmb); + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0439 Adapter failed to init, mbxCmd x%x " + "READ_REV, mbxStatus x%x\n", + mb->mbxCommand, mb->mbxStatus); + mempool_free( pmb, phba->mbox_mem_pool); + return -ERESTART; + } + + + /* + * The value of rr must be 1 since the driver set the cv field to 1. + * This setting requires the FW to set all revision fields. + */ + if (mb->un.varRdRev.rr == 0) { + vp->rev.rBit = 0; + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0440 Adapter failed to init, READ_REV has " + "missing revision information.\n"); + mempool_free(pmb, phba->mbox_mem_pool); + return -ERESTART; + } + + if (phba->sli_rev == 3 && !mb->un.varRdRev.v3rsp) { + mempool_free(pmb, phba->mbox_mem_pool); + return -EINVAL; + } + + /* Save information as VPD data */ + vp->rev.rBit = 1; + memcpy(&vp->sli3Feat, &mb->un.varRdRev.sli3Feat, sizeof(uint32_t)); + vp->rev.sli1FwRev = mb->un.varRdRev.sli1FwRev; + memcpy(vp->rev.sli1FwName, (char*) mb->un.varRdRev.sli1FwName, 16); + vp->rev.sli2FwRev = mb->un.varRdRev.sli2FwRev; + memcpy(vp->rev.sli2FwName, (char *) mb->un.varRdRev.sli2FwName, 16); + vp->rev.biuRev = mb->un.varRdRev.biuRev; + vp->rev.smRev = mb->un.varRdRev.smRev; + vp->rev.smFwRev = mb->un.varRdRev.un.smFwRev; + vp->rev.endecRev = mb->un.varRdRev.endecRev; + vp->rev.fcphHigh = mb->un.varRdRev.fcphHigh; + vp->rev.fcphLow = mb->un.varRdRev.fcphLow; + vp->rev.feaLevelHigh = mb->un.varRdRev.feaLevelHigh; + vp->rev.feaLevelLow = mb->un.varRdRev.feaLevelLow; + vp->rev.postKernRev = mb->un.varRdRev.postKernRev; + vp->rev.opFwRev = mb->un.varRdRev.opFwRev; + + /* If the sli feature level is less then 9, we must + * tear down all RPIs and VPIs on link down if NPIV + * is enabled. + */ + if (vp->rev.feaLevelHigh < 9) + phba->sli3_options |= LPFC_SLI3_VPORT_TEARDOWN; + + if (lpfc_is_LC_HBA(phba->pcidev->device)) + memcpy(phba->RandomData, (char *)&mb->un.varWords[24], + sizeof (phba->RandomData)); + + /* Get adapter VPD information */ + lpfc_vpd_data = kmalloc(DMP_VPD_SIZE, GFP_KERNEL); + if (!lpfc_vpd_data) + goto out_free_mbox; + do { + lpfc_dump_mem(phba, pmb, offset, DMP_REGION_VPD); + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0441 VPD not present on adapter, " + "mbxCmd x%x DUMP VPD, mbxStatus x%x\n", + mb->mbxCommand, mb->mbxStatus); + mb->un.varDmp.word_cnt = 0; + } + /* dump mem may return a zero when finished or we got a + * mailbox error, either way we are done. + */ + if (mb->un.varDmp.word_cnt == 0) + break; + if (mb->un.varDmp.word_cnt > DMP_VPD_SIZE - offset) + mb->un.varDmp.word_cnt = DMP_VPD_SIZE - offset; + lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET, + lpfc_vpd_data + offset, + mb->un.varDmp.word_cnt); + offset += mb->un.varDmp.word_cnt; + } while (mb->un.varDmp.word_cnt && offset < DMP_VPD_SIZE); + lpfc_parse_vpd(phba, lpfc_vpd_data, offset); + + kfree(lpfc_vpd_data); +out_free_mbox: + mempool_free(pmb, phba->mbox_mem_pool); + return 0; +} + +/** + * lpfc_config_async_cmpl - Completion handler for config async event mbox cmd + * @phba: pointer to lpfc hba data structure. + * @pmboxq: pointer to the driver internal queue element for mailbox command. + * + * This is the completion handler for driver's configuring asynchronous event + * mailbox command to the device. If the mailbox command returns successfully, + * it will set internal async event support flag to 1; otherwise, it will + * set internal async event support flag to 0. + **/ +static void +lpfc_config_async_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) +{ + if (pmboxq->u.mb.mbxStatus == MBX_SUCCESS) + phba->temp_sensor_support = 1; + else + phba->temp_sensor_support = 0; + mempool_free(pmboxq, phba->mbox_mem_pool); + return; +} + +/** + * lpfc_dump_wakeup_param_cmpl - dump memory mailbox command completion handler + * @phba: pointer to lpfc hba data structure. + * @pmboxq: pointer to the driver internal queue element for mailbox command. + * + * This is the completion handler for dump mailbox command for getting + * wake up parameters. When this command complete, the response contain + * Option rom version of the HBA. This function translate the version number + * into a human readable string and store it in OptionROMVersion. + **/ +static void +lpfc_dump_wakeup_param_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq) +{ + struct prog_id *prg; + uint32_t prog_id_word; + char dist = ' '; + /* character array used for decoding dist type. */ + char dist_char[] = "nabx"; + + if (pmboxq->u.mb.mbxStatus != MBX_SUCCESS) { + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + + prg = (struct prog_id *) &prog_id_word; + + /* word 7 contain option rom version */ + prog_id_word = pmboxq->u.mb.un.varWords[7]; + + /* Decode the Option rom version word to a readable string */ + if (prg->dist < 4) + dist = dist_char[prg->dist]; + + if ((prg->dist == 3) && (prg->num == 0)) + snprintf(phba->OptionROMVersion, 32, "%d.%d%d", + prg->ver, prg->rev, prg->lev); + else + snprintf(phba->OptionROMVersion, 32, "%d.%d%d%c%d", + prg->ver, prg->rev, prg->lev, + dist, prg->num); + mempool_free(pmboxq, phba->mbox_mem_pool); + return; +} + +/** + * lpfc_update_vport_wwn - Updates the fc_nodename, fc_portname, + * cfg_soft_wwnn, cfg_soft_wwpn + * @vport: pointer to lpfc vport data structure. + * + * + * Return codes + * None. + **/ +void +lpfc_update_vport_wwn(struct lpfc_vport *vport) +{ + uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level; + u32 *fawwpn_key = (u32 *)&vport->fc_sparam.un.vendorVersion[0]; + + /* If the soft name exists then update it using the service params */ + if (vport->phba->cfg_soft_wwnn) + u64_to_wwn(vport->phba->cfg_soft_wwnn, + vport->fc_sparam.nodeName.u.wwn); + if (vport->phba->cfg_soft_wwpn) + u64_to_wwn(vport->phba->cfg_soft_wwpn, + vport->fc_sparam.portName.u.wwn); + + /* + * If the name is empty or there exists a soft name + * then copy the service params name, otherwise use the fc name + */ + if (vport->fc_nodename.u.wwn[0] == 0 || vport->phba->cfg_soft_wwnn) + memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName, + sizeof(struct lpfc_name)); + else + memcpy(&vport->fc_sparam.nodeName, &vport->fc_nodename, + sizeof(struct lpfc_name)); + + /* + * If the port name has changed, then set the Param changes flag + * to unreg the login + */ + if (vport->fc_portname.u.wwn[0] != 0 && + memcmp(&vport->fc_portname, &vport->fc_sparam.portName, + sizeof(struct lpfc_name))) + vport->vport_flag |= FAWWPN_PARAM_CHG; + + if (vport->fc_portname.u.wwn[0] == 0 || + vport->phba->cfg_soft_wwpn || + (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) || + vport->vport_flag & FAWWPN_SET) { + memcpy(&vport->fc_portname, &vport->fc_sparam.portName, + sizeof(struct lpfc_name)); + vport->vport_flag &= ~FAWWPN_SET; + if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) + vport->vport_flag |= FAWWPN_SET; + } + else + memcpy(&vport->fc_sparam.portName, &vport->fc_portname, + sizeof(struct lpfc_name)); +} + +/** + * lpfc_config_port_post - Perform lpfc initialization after config port + * @phba: pointer to lpfc hba data structure. + * + * This routine will do LPFC initialization after the CONFIG_PORT mailbox + * command call. It performs all internal resource and state setups on the + * port: post IOCB buffers, enable appropriate host interrupt attentions, + * ELS ring timers, etc. + * + * Return codes + * 0 - success. + * Any other value - error. + **/ +int +lpfc_config_port_post(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport = phba->pport; + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + LPFC_MBOXQ_t *pmb; + MAILBOX_t *mb; + struct lpfc_dmabuf *mp; + struct lpfc_sli *psli = &phba->sli; + uint32_t status, timeout; + int i, j; + int rc; + + spin_lock_irq(&phba->hbalock); + /* + * If the Config port completed correctly the HBA is not + * over heated any more. + */ + if (phba->over_temp_state == HBA_OVER_TEMP) + phba->over_temp_state = HBA_NORMAL_TEMP; + spin_unlock_irq(&phba->hbalock); + + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + phba->link_state = LPFC_HBA_ERROR; + return -ENOMEM; + } + mb = &pmb->u.mb; + + /* Get login parameters for NID. */ + rc = lpfc_read_sparam(phba, pmb, 0); + if (rc) { + mempool_free(pmb, phba->mbox_mem_pool); + return -ENOMEM; + } + + pmb->vport = vport; + if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0448 Adapter failed init, mbxCmd x%x " + "READ_SPARM mbxStatus x%x\n", + mb->mbxCommand, mb->mbxStatus); + phba->link_state = LPFC_HBA_ERROR; + mp = (struct lpfc_dmabuf *) pmb->context1; + mempool_free(pmb, phba->mbox_mem_pool); + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + return -EIO; + } + + mp = (struct lpfc_dmabuf *) pmb->context1; + + memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm)); + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + pmb->context1 = NULL; + lpfc_update_vport_wwn(vport); + + /* Update the fc_host data structures with new wwn. */ + fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); + fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); + fc_host_max_npiv_vports(shost) = phba->max_vpi; + + /* If no serial number in VPD data, use low 6 bytes of WWNN */ + /* This should be consolidated into parse_vpd ? - mr */ + if (phba->SerialNumber[0] == 0) { + uint8_t *outptr; + + outptr = &vport->fc_nodename.u.s.IEEE[0]; + for (i = 0; i < 12; i++) { + status = *outptr++; + j = ((status & 0xf0) >> 4); + if (j <= 9) + phba->SerialNumber[i] = + (char)((uint8_t) 0x30 + (uint8_t) j); + else + phba->SerialNumber[i] = + (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); + i++; + j = (status & 0xf); + if (j <= 9) + phba->SerialNumber[i] = + (char)((uint8_t) 0x30 + (uint8_t) j); + else + phba->SerialNumber[i] = + (char)((uint8_t) 0x61 + (uint8_t) (j - 10)); + } + } + + lpfc_read_config(phba, pmb); + pmb->vport = vport; + if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0453 Adapter failed to init, mbxCmd x%x " + "READ_CONFIG, mbxStatus x%x\n", + mb->mbxCommand, mb->mbxStatus); + phba->link_state = LPFC_HBA_ERROR; + mempool_free( pmb, phba->mbox_mem_pool); + return -EIO; + } + + /* Check if the port is disabled */ + lpfc_sli_read_link_ste(phba); + + /* Reset the DFT_HBA_Q_DEPTH to the max xri */ + i = (mb->un.varRdConfig.max_xri + 1); + if (phba->cfg_hba_queue_depth > i) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "3359 HBA queue depth changed from %d to %d\n", + phba->cfg_hba_queue_depth, i); + phba->cfg_hba_queue_depth = i; + } + + /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */ + i = (mb->un.varRdConfig.max_xri >> 3); + if (phba->pport->cfg_lun_queue_depth > i) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "3360 LUN queue depth changed from %d to %d\n", + phba->pport->cfg_lun_queue_depth, i); + phba->pport->cfg_lun_queue_depth = i; + } + + phba->lmt = mb->un.varRdConfig.lmt; + + /* Get the default values for Model Name and Description */ + lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); + + phba->link_state = LPFC_LINK_DOWN; + + /* Only process IOCBs on ELS ring till hba_state is READY */ + if (psli->sli3_ring[LPFC_EXTRA_RING].sli.sli3.cmdringaddr) + psli->sli3_ring[LPFC_EXTRA_RING].flag |= LPFC_STOP_IOCB_EVENT; + if (psli->sli3_ring[LPFC_FCP_RING].sli.sli3.cmdringaddr) + psli->sli3_ring[LPFC_FCP_RING].flag |= LPFC_STOP_IOCB_EVENT; + + /* Post receive buffers for desired rings */ + if (phba->sli_rev != 3) + lpfc_post_rcv_buf(phba); + + /* + * Configure HBA MSI-X attention conditions to messages if MSI-X mode + */ + if (phba->intr_type == MSIX) { + rc = lpfc_config_msi(phba, pmb); + if (rc) { + mempool_free(pmb, phba->mbox_mem_pool); + return -EIO; + } + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, + "0352 Config MSI mailbox command " + "failed, mbxCmd x%x, mbxStatus x%x\n", + pmb->u.mb.mbxCommand, + pmb->u.mb.mbxStatus); + mempool_free(pmb, phba->mbox_mem_pool); + return -EIO; + } + } + + spin_lock_irq(&phba->hbalock); + /* Initialize ERATT handling flag */ + phba->hba_flag &= ~HBA_ERATT_HANDLED; + + /* Enable appropriate host interrupts */ + if (lpfc_readl(phba->HCregaddr, &status)) { + spin_unlock_irq(&phba->hbalock); + return -EIO; + } + status |= HC_MBINT_ENA | HC_ERINT_ENA | HC_LAINT_ENA; + if (psli->num_rings > 0) + status |= HC_R0INT_ENA; + if (psli->num_rings > 1) + status |= HC_R1INT_ENA; + if (psli->num_rings > 2) + status |= HC_R2INT_ENA; + if (psli->num_rings > 3) + status |= HC_R3INT_ENA; + + if ((phba->cfg_poll & ENABLE_FCP_RING_POLLING) && + (phba->cfg_poll & DISABLE_FCP_RING_INT)) + status &= ~(HC_R0INT_ENA); + + writel(status, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + spin_unlock_irq(&phba->hbalock); + + /* Set up ring-0 (ELS) timer */ + timeout = phba->fc_ratov * 2; + mod_timer(&vport->els_tmofunc, + jiffies + msecs_to_jiffies(1000 * timeout)); + /* Set up heart beat (HB) timer */ + mod_timer(&phba->hb_tmofunc, + jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); + phba->hb_outstanding = 0; + phba->last_completion_time = jiffies; + /* Set up error attention (ERATT) polling timer */ + mod_timer(&phba->eratt_poll, + jiffies + msecs_to_jiffies(1000 * phba->eratt_poll_interval)); + + if (phba->hba_flag & LINK_DISABLED) { + lpfc_printf_log(phba, + KERN_ERR, LOG_INIT, + "2598 Adapter Link is disabled.\n"); + lpfc_down_link(phba, pmb); + pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { + lpfc_printf_log(phba, + KERN_ERR, LOG_INIT, + "2599 Adapter failed to issue DOWN_LINK" + " mbox command rc 0x%x\n", rc); + + mempool_free(pmb, phba->mbox_mem_pool); + return -EIO; + } + } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) { + mempool_free(pmb, phba->mbox_mem_pool); + rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); + if (rc) + return rc; + } + /* MBOX buffer will be freed in mbox compl */ + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + phba->link_state = LPFC_HBA_ERROR; + return -ENOMEM; + } + + lpfc_config_async(phba, pmb, LPFC_ELS_RING); + pmb->mbox_cmpl = lpfc_config_async_cmpl; + pmb->vport = phba->pport; + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + + if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { + lpfc_printf_log(phba, + KERN_ERR, + LOG_INIT, + "0456 Adapter failed to issue " + "ASYNCEVT_ENABLE mbox status x%x\n", + rc); + mempool_free(pmb, phba->mbox_mem_pool); + } + + /* Get Option rom version */ + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + phba->link_state = LPFC_HBA_ERROR; + return -ENOMEM; + } + + lpfc_dump_wakeup_param(phba, pmb); + pmb->mbox_cmpl = lpfc_dump_wakeup_param_cmpl; + pmb->vport = phba->pport; + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + + if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0435 Adapter failed " + "to get Option ROM version status x%x\n", rc); + mempool_free(pmb, phba->mbox_mem_pool); + } + + return 0; +} + +/** + * lpfc_hba_init_link - Initialize the FC link + * @phba: pointer to lpfc hba data structure. + * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT + * + * This routine will issue the INIT_LINK mailbox command call. + * It is available to other drivers through the lpfc_hba data + * structure for use as a delayed link up mechanism with the + * module parameter lpfc_suppress_link_up. + * + * Return code + * 0 - success + * Any other value - error + **/ +static int +lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag) +{ + return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag); +} + +/** + * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology + * @phba: pointer to lpfc hba data structure. + * @fc_topology: desired fc topology. + * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT + * + * This routine will issue the INIT_LINK mailbox command call. + * It is available to other drivers through the lpfc_hba data + * structure for use as a delayed link up mechanism with the + * module parameter lpfc_suppress_link_up. + * + * Return code + * 0 - success + * Any other value - error + **/ +int +lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology, + uint32_t flag) +{ + struct lpfc_vport *vport = phba->pport; + LPFC_MBOXQ_t *pmb; + MAILBOX_t *mb; + int rc; + + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + phba->link_state = LPFC_HBA_ERROR; + return -ENOMEM; + } + mb = &pmb->u.mb; + pmb->vport = vport; + + if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) && + !(phba->lmt & LMT_1Gb)) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) && + !(phba->lmt & LMT_2Gb)) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) && + !(phba->lmt & LMT_4Gb)) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) && + !(phba->lmt & LMT_8Gb)) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) && + !(phba->lmt & LMT_10Gb)) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) && + !(phba->lmt & LMT_16Gb)) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_32G) && + !(phba->lmt & LMT_32Gb)) || + ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_64G) && + !(phba->lmt & LMT_64Gb))) { + /* Reset link speed to auto */ + lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT, + "1302 Invalid speed for this board:%d " + "Reset link speed to auto.\n", + phba->cfg_link_speed); + phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; + } + lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed); + pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + if (phba->sli_rev < LPFC_SLI_REV4) + lpfc_set_loopback_flag(phba); + rc = lpfc_sli_issue_mbox(phba, pmb, flag); + if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0498 Adapter failed to init, mbxCmd x%x " + "INIT_LINK, mbxStatus x%x\n", + mb->mbxCommand, mb->mbxStatus); + if (phba->sli_rev <= LPFC_SLI_REV3) { + /* Clear all interrupt enable conditions */ + writel(0, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + /* Clear all pending interrupts */ + writel(0xffffffff, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + } + phba->link_state = LPFC_HBA_ERROR; + if (rc != MBX_BUSY || flag == MBX_POLL) + mempool_free(pmb, phba->mbox_mem_pool); + return -EIO; + } + phba->cfg_suppress_link_up = LPFC_INITIALIZE_LINK; + if (flag == MBX_POLL) + mempool_free(pmb, phba->mbox_mem_pool); + + return 0; +} + +/** + * lpfc_hba_down_link - this routine downs the FC link + * @phba: pointer to lpfc hba data structure. + * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT + * + * This routine will issue the DOWN_LINK mailbox command call. + * It is available to other drivers through the lpfc_hba data + * structure for use to stop the link. + * + * Return code + * 0 - success + * Any other value - error + **/ +static int +lpfc_hba_down_link(struct lpfc_hba *phba, uint32_t flag) +{ + LPFC_MBOXQ_t *pmb; + int rc; + + pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + phba->link_state = LPFC_HBA_ERROR; + return -ENOMEM; + } + + lpfc_printf_log(phba, + KERN_ERR, LOG_INIT, + "0491 Adapter Link is disabled.\n"); + lpfc_down_link(phba, pmb); + pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + rc = lpfc_sli_issue_mbox(phba, pmb, flag); + if ((rc != MBX_SUCCESS) && (rc != MBX_BUSY)) { + lpfc_printf_log(phba, + KERN_ERR, LOG_INIT, + "2522 Adapter failed to issue DOWN_LINK" + " mbox command rc 0x%x\n", rc); + + mempool_free(pmb, phba->mbox_mem_pool); + return -EIO; + } + if (flag == MBX_POLL) + mempool_free(pmb, phba->mbox_mem_pool); + + return 0; +} + +/** + * lpfc_hba_down_prep - Perform lpfc uninitialization prior to HBA reset + * @phba: pointer to lpfc HBA data structure. + * + * This routine will do LPFC uninitialization before the HBA is reset when + * bringing down the SLI Layer. + * + * Return codes + * 0 - success. + * Any other value - error. + **/ +int +lpfc_hba_down_prep(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + int i; + + if (phba->sli_rev <= LPFC_SLI_REV3) { + /* Disable interrupts */ + writel(0, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + } + + if (phba->pport->load_flag & FC_UNLOADING) + lpfc_cleanup_discovery_resources(phba->pport); + else { + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && + vports[i] != NULL; i++) + lpfc_cleanup_discovery_resources(vports[i]); + lpfc_destroy_vport_work_array(phba, vports); + } + return 0; +} + +/** + * lpfc_sli4_free_sp_events - Cleanup sp_queue_events to free + * rspiocb which got deferred + * + * @phba: pointer to lpfc HBA data structure. + * + * This routine will cleanup completed slow path events after HBA is reset + * when bringing down the SLI Layer. + * + * + * Return codes + * void. + **/ +static void +lpfc_sli4_free_sp_events(struct lpfc_hba *phba) +{ + struct lpfc_iocbq *rspiocbq; + struct hbq_dmabuf *dmabuf; + struct lpfc_cq_event *cq_event; + + spin_lock_irq(&phba->hbalock); + phba->hba_flag &= ~HBA_SP_QUEUE_EVT; + spin_unlock_irq(&phba->hbalock); + + while (!list_empty(&phba->sli4_hba.sp_queue_event)) { + /* Get the response iocb from the head of work queue */ + spin_lock_irq(&phba->hbalock); + list_remove_head(&phba->sli4_hba.sp_queue_event, + cq_event, struct lpfc_cq_event, list); + spin_unlock_irq(&phba->hbalock); + + switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) { + case CQE_CODE_COMPL_WQE: + rspiocbq = container_of(cq_event, struct lpfc_iocbq, + cq_event); + lpfc_sli_release_iocbq(phba, rspiocbq); + break; + case CQE_CODE_RECEIVE: + case CQE_CODE_RECEIVE_V1: + dmabuf = container_of(cq_event, struct hbq_dmabuf, + cq_event); + lpfc_in_buf_free(phba, &dmabuf->dbuf); + } + } +} + +/** + * lpfc_hba_free_post_buf - Perform lpfc uninitialization after HBA reset + * @phba: pointer to lpfc HBA data structure. + * + * This routine will cleanup posted ELS buffers after the HBA is reset + * when bringing down the SLI Layer. + * + * + * Return codes + * void. + **/ +static void +lpfc_hba_free_post_buf(struct lpfc_hba *phba) +{ + struct lpfc_sli *psli = &phba->sli; + struct lpfc_sli_ring *pring; + struct lpfc_dmabuf *mp, *next_mp; + LIST_HEAD(buflist); + int count; + + if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) + lpfc_sli_hbqbuf_free_all(phba); + else { + /* Cleanup preposted buffers on the ELS ring */ + pring = &psli->sli3_ring[LPFC_ELS_RING]; + spin_lock_irq(&phba->hbalock); + list_splice_init(&pring->postbufq, &buflist); + spin_unlock_irq(&phba->hbalock); + + count = 0; + list_for_each_entry_safe(mp, next_mp, &buflist, list) { + list_del(&mp->list); + count++; + lpfc_mbuf_free(phba, mp->virt, mp->phys); + kfree(mp); + } + + spin_lock_irq(&phba->hbalock); + pring->postbufq_cnt -= count; + spin_unlock_irq(&phba->hbalock); + } +} + +/** + * lpfc_hba_clean_txcmplq - Perform lpfc uninitialization after HBA reset + * @phba: pointer to lpfc HBA data structure. + * + * This routine will cleanup the txcmplq after the HBA is reset when bringing + * down the SLI Layer. + * + * Return codes + * void + **/ +static void +lpfc_hba_clean_txcmplq(struct lpfc_hba *phba) +{ + struct lpfc_sli *psli = &phba->sli; + struct lpfc_queue *qp = NULL; + struct lpfc_sli_ring *pring; + LIST_HEAD(completions); + int i; + struct lpfc_iocbq *piocb, *next_iocb; + + if (phba->sli_rev != LPFC_SLI_REV4) { + for (i = 0; i < psli->num_rings; i++) { + pring = &psli->sli3_ring[i]; + spin_lock_irq(&phba->hbalock); + /* At this point in time the HBA is either reset or DOA + * Nothing should be on txcmplq as it will + * NEVER complete. + */ + list_splice_init(&pring->txcmplq, &completions); + pring->txcmplq_cnt = 0; + spin_unlock_irq(&phba->hbalock); + + lpfc_sli_abort_iocb_ring(phba, pring); + } + /* Cancel all the IOCBs from the completions list */ + lpfc_sli_cancel_iocbs(phba, &completions, + IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); + return; + } + list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { + pring = qp->pring; + if (!pring) + continue; + spin_lock_irq(&pring->ring_lock); + list_for_each_entry_safe(piocb, next_iocb, + &pring->txcmplq, list) + piocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ; + list_splice_init(&pring->txcmplq, &completions); + pring->txcmplq_cnt = 0; + spin_unlock_irq(&pring->ring_lock); + lpfc_sli_abort_iocb_ring(phba, pring); + } + /* Cancel all the IOCBs from the completions list */ + lpfc_sli_cancel_iocbs(phba, &completions, + IOSTAT_LOCAL_REJECT, IOERR_SLI_ABORTED); +} + +/** + * lpfc_hba_down_post_s3 - Perform lpfc uninitialization after HBA reset + int i; + * @phba: pointer to lpfc HBA data structure. + * + * This routine will do uninitialization after the HBA is reset when bring + * down the SLI Layer. + * + * Return codes + * 0 - success. + * Any other value - error. + **/ +static int +lpfc_hba_down_post_s3(struct lpfc_hba *phba) +{ + lpfc_hba_free_post_buf(phba); + lpfc_hba_clean_txcmplq(phba); + return 0; +} + +/** + * lpfc_hba_down_post_s4 - Perform lpfc uninitialization after HBA reset + * @phba: pointer to lpfc HBA data structure. + * + * This routine will do uninitialization after the HBA is reset when bring + * down the SLI Layer. + * + * Return codes + * 0 - success. + * Any other value - error. + **/ +static int +lpfc_hba_down_post_s4(struct lpfc_hba *phba) +{ + struct lpfc_scsi_buf *psb, *psb_next; + struct lpfc_nvmet_rcv_ctx *ctxp, *ctxp_next; + LIST_HEAD(aborts); + LIST_HEAD(nvme_aborts); + LIST_HEAD(nvmet_aborts); + unsigned long iflag = 0; + struct lpfc_sglq *sglq_entry = NULL; + int cnt; + + + lpfc_sli_hbqbuf_free_all(phba); + lpfc_hba_clean_txcmplq(phba); + + /* At this point in time the HBA is either reset or DOA. Either + * way, nothing should be on lpfc_abts_els_sgl_list, it needs to be + * on the lpfc_els_sgl_list so that it can either be freed if the + * driver is unloading or reposted if the driver is restarting + * the port. + */ + spin_lock_irq(&phba->hbalock); /* required for lpfc_els_sgl_list and */ + /* scsl_buf_list */ + /* sgl_list_lock required because worker thread uses this + * list. + */ + spin_lock(&phba->sli4_hba.sgl_list_lock); + list_for_each_entry(sglq_entry, + &phba->sli4_hba.lpfc_abts_els_sgl_list, list) + sglq_entry->state = SGL_FREED; + + list_splice_init(&phba->sli4_hba.lpfc_abts_els_sgl_list, + &phba->sli4_hba.lpfc_els_sgl_list); + + + spin_unlock(&phba->sli4_hba.sgl_list_lock); + /* abts_scsi_buf_list_lock required because worker thread uses this + * list. + */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { + spin_lock(&phba->sli4_hba.abts_scsi_buf_list_lock); + list_splice_init(&phba->sli4_hba.lpfc_abts_scsi_buf_list, + &aborts); + spin_unlock(&phba->sli4_hba.abts_scsi_buf_list_lock); + } + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); + list_splice_init(&phba->sli4_hba.lpfc_abts_nvme_buf_list, + &nvme_aborts); + list_splice_init(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list, + &nvmet_aborts); + spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); + } + + spin_unlock_irq(&phba->hbalock); + + list_for_each_entry_safe(psb, psb_next, &aborts, list) { + psb->pCmd = NULL; + psb->status = IOSTAT_SUCCESS; + } + spin_lock_irqsave(&phba->scsi_buf_list_put_lock, iflag); + list_splice(&aborts, &phba->lpfc_scsi_buf_list_put); + spin_unlock_irqrestore(&phba->scsi_buf_list_put_lock, iflag); + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + cnt = 0; + list_for_each_entry_safe(psb, psb_next, &nvme_aborts, list) { + psb->pCmd = NULL; + psb->status = IOSTAT_SUCCESS; + cnt++; + } + spin_lock_irqsave(&phba->nvme_buf_list_put_lock, iflag); + phba->put_nvme_bufs += cnt; + list_splice(&nvme_aborts, &phba->lpfc_nvme_buf_list_put); + spin_unlock_irqrestore(&phba->nvme_buf_list_put_lock, iflag); + + list_for_each_entry_safe(ctxp, ctxp_next, &nvmet_aborts, list) { + ctxp->flag &= ~(LPFC_NVMET_XBUSY | LPFC_NVMET_ABORT_OP); + lpfc_nvmet_ctxbuf_post(phba, ctxp->ctxbuf); + } + } + + lpfc_sli4_free_sp_events(phba); + return 0; +} + +/** + * lpfc_hba_down_post - Wrapper func for hba down post routine + * @phba: pointer to lpfc HBA data structure. + * + * This routine wraps the actual SLI3 or SLI4 routine for performing + * uninitialization after the HBA is reset when bring down the SLI Layer. + * + * Return codes + * 0 - success. + * Any other value - error. + **/ +int +lpfc_hba_down_post(struct lpfc_hba *phba) +{ + return (*phba->lpfc_hba_down_post)(phba); +} + +/** + * lpfc_hb_timeout - The HBA-timer timeout handler + * @ptr: unsigned long holds the pointer to lpfc hba data structure. + * + * This is the HBA-timer timeout handler registered to the lpfc driver. When + * this timer fires, a HBA timeout event shall be posted to the lpfc driver + * work-port-events bitmap and the worker thread is notified. This timeout + * event will be used by the worker thread to invoke the actual timeout + * handler routine, lpfc_hb_timeout_handler. Any periodical operations will + * be performed in the timeout handler and the HBA timeout event bit shall + * be cleared by the worker thread after it has taken the event bitmap out. + **/ +static void +lpfc_hb_timeout(struct timer_list *t) +{ + struct lpfc_hba *phba; + uint32_t tmo_posted; + unsigned long iflag; + + phba = from_timer(phba, t, hb_tmofunc); + + /* Check for heart beat timeout conditions */ + spin_lock_irqsave(&phba->pport->work_port_lock, iflag); + tmo_posted = phba->pport->work_port_events & WORKER_HB_TMO; + if (!tmo_posted) + phba->pport->work_port_events |= WORKER_HB_TMO; + spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); + + /* Tell the worker thread there is work to do */ + if (!tmo_posted) + lpfc_worker_wake_up(phba); + return; +} + +/** + * lpfc_rrq_timeout - The RRQ-timer timeout handler + * @ptr: unsigned long holds the pointer to lpfc hba data structure. + * + * This is the RRQ-timer timeout handler registered to the lpfc driver. When + * this timer fires, a RRQ timeout event shall be posted to the lpfc driver + * work-port-events bitmap and the worker thread is notified. This timeout + * event will be used by the worker thread to invoke the actual timeout + * handler routine, lpfc_rrq_handler. Any periodical operations will + * be performed in the timeout handler and the RRQ timeout event bit shall + * be cleared by the worker thread after it has taken the event bitmap out. + **/ +static void +lpfc_rrq_timeout(struct timer_list *t) +{ + struct lpfc_hba *phba; + unsigned long iflag; + + phba = from_timer(phba, t, rrq_tmr); + spin_lock_irqsave(&phba->pport->work_port_lock, iflag); + if (!(phba->pport->load_flag & FC_UNLOADING)) + phba->hba_flag |= HBA_RRQ_ACTIVE; + else + phba->hba_flag &= ~HBA_RRQ_ACTIVE; + spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag); + + if (!(phba->pport->load_flag & FC_UNLOADING)) + lpfc_worker_wake_up(phba); +} + +/** + * lpfc_hb_mbox_cmpl - The lpfc heart-beat mailbox command callback function + * @phba: pointer to lpfc hba data structure. + * @pmboxq: pointer to the driver internal queue element for mailbox command. + * + * This is the callback function to the lpfc heart-beat mailbox command. + * If configured, the lpfc driver issues the heart-beat mailbox command to + * the HBA every LPFC_HB_MBOX_INTERVAL (current 5) seconds. At the time the + * heart-beat mailbox command is issued, the driver shall set up heart-beat + * timeout timer to LPFC_HB_MBOX_TIMEOUT (current 30) seconds and marks + * heart-beat outstanding state. Once the mailbox command comes back and + * no error conditions detected, the heart-beat mailbox command timer is + * reset to LPFC_HB_MBOX_INTERVAL seconds and the heart-beat outstanding + * state is cleared for the next heart-beat. If the timer expired with the + * heart-beat outstanding state set, the driver will put the HBA offline. + **/ +static void +lpfc_hb_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) +{ + unsigned long drvr_flag; + + spin_lock_irqsave(&phba->hbalock, drvr_flag); + phba->hb_outstanding = 0; + spin_unlock_irqrestore(&phba->hbalock, drvr_flag); + + /* Check and reset heart-beat timer is necessary */ + mempool_free(pmboxq, phba->mbox_mem_pool); + if (!(phba->pport->fc_flag & FC_OFFLINE_MODE) && + !(phba->link_state == LPFC_HBA_ERROR) && + !(phba->pport->load_flag & FC_UNLOADING)) + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); + return; +} + +/** + * lpfc_hb_timeout_handler - The HBA-timer timeout handler + * @phba: pointer to lpfc hba data structure. + * + * This is the actual HBA-timer timeout handler to be invoked by the worker + * thread whenever the HBA timer fired and HBA-timeout event posted. This + * handler performs any periodic operations needed for the device. If such + * periodic event has already been attended to either in the interrupt handler + * or by processing slow-ring or fast-ring events within the HBA-timer + * timeout window (LPFC_HB_MBOX_INTERVAL), this handler just simply resets + * the timer for the next timeout period. If lpfc heart-beat mailbox command + * is configured and there is no heart-beat mailbox command outstanding, a + * heart-beat mailbox is issued and timer set properly. Otherwise, if there + * has been a heart-beat mailbox command outstanding, the HBA shall be put + * to offline. + **/ +void +lpfc_hb_timeout_handler(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + LPFC_MBOXQ_t *pmboxq; + struct lpfc_dmabuf *buf_ptr; + int retval, i; + struct lpfc_sli *psli = &phba->sli; + LIST_HEAD(completions); + struct lpfc_queue *qp; + unsigned long time_elapsed; + uint32_t tick_cqe, max_cqe, val; + uint64_t tot, data1, data2, data3; + struct lpfc_nvmet_tgtport *tgtp; + struct lpfc_register reg_data; + struct nvme_fc_local_port *localport; + struct lpfc_nvme_lport *lport; + struct lpfc_nvme_ctrl_stat *cstat; + void __iomem *eqdreg = phba->sli4_hba.u.if_type2.EQDregaddr; + + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + lpfc_rcv_seq_check_edtov(vports[i]); + lpfc_fdmi_num_disc_check(vports[i]); + } + lpfc_destroy_vport_work_array(phba, vports); + + if ((phba->link_state == LPFC_HBA_ERROR) || + (phba->pport->load_flag & FC_UNLOADING) || + (phba->pport->fc_flag & FC_OFFLINE_MODE)) + return; + + if (phba->cfg_auto_imax) { + if (!phba->last_eqdelay_time) { + phba->last_eqdelay_time = jiffies; + goto skip_eqdelay; + } + time_elapsed = jiffies - phba->last_eqdelay_time; + phba->last_eqdelay_time = jiffies; + + tot = 0xffff; + /* Check outstanding IO count */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + if (phba->nvmet_support) { + tgtp = phba->targetport->private; + /* Calculate outstanding IOs */ + tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); + tot += atomic_read(&tgtp->xmt_fcp_release); + tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; + } else { + localport = phba->pport->localport; + if (!localport || !localport->private) + goto skip_eqdelay; + lport = (struct lpfc_nvme_lport *) + localport->private; + tot = 0; + for (i = 0; + i < phba->cfg_nvme_io_channel; i++) { + cstat = &lport->cstat[i]; + data1 = atomic_read( + &cstat->fc4NvmeInputRequests); + data2 = atomic_read( + &cstat->fc4NvmeOutputRequests); + data3 = atomic_read( + &cstat->fc4NvmeControlRequests); + tot += (data1 + data2 + data3); + tot -= atomic_read( + &cstat->fc4NvmeIoCmpls); + } + } + } + + /* Interrupts per sec per EQ */ + val = phba->cfg_fcp_imax / phba->io_channel_irqs; + tick_cqe = val / CONFIG_HZ; /* Per tick per EQ */ + + /* Assume 1 CQE/ISR, calc max CQEs allowed for time duration */ + max_cqe = time_elapsed * tick_cqe; + + for (i = 0; i < phba->io_channel_irqs; i++) { + /* Fast-path EQ */ + qp = phba->sli4_hba.hba_eq[i]; + if (!qp) + continue; + + /* Use no EQ delay if we don't have many outstanding + * IOs, or if we are only processing 1 CQE/ISR or less. + * Otherwise, assume we can process up to lpfc_fcp_imax + * interrupts per HBA. + */ + if (tot < LPFC_NODELAY_MAX_IO || + qp->EQ_cqe_cnt <= max_cqe) + val = 0; + else + val = phba->cfg_fcp_imax; + + if (phba->sli.sli_flag & LPFC_SLI_USE_EQDR) { + /* Use EQ Delay Register method */ + + /* Convert for EQ Delay register */ + if (val) { + /* First, interrupts per sec per EQ */ + val = phba->cfg_fcp_imax / + phba->io_channel_irqs; + + /* us delay between each interrupt */ + val = LPFC_SEC_TO_USEC / val; + } + if (val != qp->q_mode) { + reg_data.word0 = 0; + bf_set(lpfc_sliport_eqdelay_id, + ®_data, qp->queue_id); + bf_set(lpfc_sliport_eqdelay_delay, + ®_data, val); + writel(reg_data.word0, eqdreg); + } + } else { + /* Use mbox command method */ + if (val != qp->q_mode) + lpfc_modify_hba_eq_delay(phba, i, + 1, val); + } + + /* + * val is cfg_fcp_imax or 0 for mbox delay or us delay + * between interrupts for EQDR. + */ + qp->q_mode = val; + qp->EQ_cqe_cnt = 0; + } + } + +skip_eqdelay: + spin_lock_irq(&phba->pport->work_port_lock); + + if (time_after(phba->last_completion_time + + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL), + jiffies)) { + spin_unlock_irq(&phba->pport->work_port_lock); + if (!phba->hb_outstanding) + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); + else + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); + return; + } + spin_unlock_irq(&phba->pport->work_port_lock); + + if (phba->elsbuf_cnt && + (phba->elsbuf_cnt == phba->elsbuf_prev_cnt)) { + spin_lock_irq(&phba->hbalock); + list_splice_init(&phba->elsbuf, &completions); + phba->elsbuf_cnt = 0; + phba->elsbuf_prev_cnt = 0; + spin_unlock_irq(&phba->hbalock); + + while (!list_empty(&completions)) { + list_remove_head(&completions, buf_ptr, + struct lpfc_dmabuf, list); + lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); + kfree(buf_ptr); + } + } + phba->elsbuf_prev_cnt = phba->elsbuf_cnt; + + /* If there is no heart beat outstanding, issue a heartbeat command */ + if (phba->cfg_enable_hba_heartbeat) { + if (!phba->hb_outstanding) { + if ((!(psli->sli_flag & LPFC_SLI_MBOX_ACTIVE)) && + (list_empty(&psli->mboxq))) { + pmboxq = mempool_alloc(phba->mbox_mem_pool, + GFP_KERNEL); + if (!pmboxq) { + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * + LPFC_HB_MBOX_INTERVAL)); + return; + } + + lpfc_heart_beat(phba, pmboxq); + pmboxq->mbox_cmpl = lpfc_hb_mbox_cmpl; + pmboxq->vport = phba->pport; + retval = lpfc_sli_issue_mbox(phba, pmboxq, + MBX_NOWAIT); + + if (retval != MBX_BUSY && + retval != MBX_SUCCESS) { + mempool_free(pmboxq, + phba->mbox_mem_pool); + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * + LPFC_HB_MBOX_INTERVAL)); + return; + } + phba->skipped_hb = 0; + phba->hb_outstanding = 1; + } else if (time_before_eq(phba->last_completion_time, + phba->skipped_hb)) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2857 Last completion time not " + " updated in %d ms\n", + jiffies_to_msecs(jiffies + - phba->last_completion_time)); + } else + phba->skipped_hb = jiffies; + + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); + return; + } else { + /* + * If heart beat timeout called with hb_outstanding set + * we need to give the hb mailbox cmd a chance to + * complete or TMO. + */ + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0459 Adapter heartbeat still out" + "standing:last compl time was %d ms.\n", + jiffies_to_msecs(jiffies + - phba->last_completion_time)); + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * LPFC_HB_MBOX_TIMEOUT)); + } + } else { + mod_timer(&phba->hb_tmofunc, + jiffies + + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL)); + } +} + +/** + * lpfc_offline_eratt - Bring lpfc offline on hardware error attention + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to bring the HBA offline when HBA hardware error + * other than Port Error 6 has been detected. + **/ +static void +lpfc_offline_eratt(struct lpfc_hba *phba) +{ + struct lpfc_sli *psli = &phba->sli; + + spin_lock_irq(&phba->hbalock); + psli->sli_flag &= ~LPFC_SLI_ACTIVE; + spin_unlock_irq(&phba->hbalock); + lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); + + lpfc_offline(phba); + lpfc_reset_barrier(phba); + spin_lock_irq(&phba->hbalock); + lpfc_sli_brdreset(phba); + spin_unlock_irq(&phba->hbalock); + lpfc_hba_down_post(phba); + lpfc_sli_brdready(phba, HS_MBRDY); + lpfc_unblock_mgmt_io(phba); + phba->link_state = LPFC_HBA_ERROR; + return; +} + +/** + * lpfc_sli4_offline_eratt - Bring lpfc offline on SLI4 hardware error attention + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to bring a SLI4 HBA offline when HBA hardware error + * other than Port Error 6 has been detected. + **/ +void +lpfc_sli4_offline_eratt(struct lpfc_hba *phba) +{ + spin_lock_irq(&phba->hbalock); + phba->link_state = LPFC_HBA_ERROR; + spin_unlock_irq(&phba->hbalock); + + lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); + lpfc_offline(phba); + lpfc_hba_down_post(phba); + lpfc_unblock_mgmt_io(phba); +} + +/** + * lpfc_handle_deferred_eratt - The HBA hardware deferred error handler + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to handle the deferred HBA hardware error + * conditions. This type of error is indicated by HBA by setting ER1 + * and another ER bit in the host status register. The driver will + * wait until the ER1 bit clears before handling the error condition. + **/ +static void +lpfc_handle_deferred_eratt(struct lpfc_hba *phba) +{ + uint32_t old_host_status = phba->work_hs; + struct lpfc_sli *psli = &phba->sli; + + /* If the pci channel is offline, ignore possible errors, + * since we cannot communicate with the pci card anyway. + */ + if (pci_channel_offline(phba->pcidev)) { + spin_lock_irq(&phba->hbalock); + phba->hba_flag &= ~DEFER_ERATT; + spin_unlock_irq(&phba->hbalock); + return; + } + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0479 Deferred Adapter Hardware Error " + "Data: x%x x%x x%x\n", + phba->work_hs, + phba->work_status[0], phba->work_status[1]); + + spin_lock_irq(&phba->hbalock); + psli->sli_flag &= ~LPFC_SLI_ACTIVE; + spin_unlock_irq(&phba->hbalock); + + + /* + * Firmware stops when it triggred erratt. That could cause the I/Os + * dropped by the firmware. Error iocb (I/O) on txcmplq and let the + * SCSI layer retry it after re-establishing link. + */ + lpfc_sli_abort_fcp_rings(phba); + + /* + * There was a firmware error. Take the hba offline and then + * attempt to restart it. + */ + lpfc_offline_prep(phba, LPFC_MBX_WAIT); + lpfc_offline(phba); + + /* Wait for the ER1 bit to clear.*/ + while (phba->work_hs & HS_FFER1) { + msleep(100); + if (lpfc_readl(phba->HSregaddr, &phba->work_hs)) { + phba->work_hs = UNPLUG_ERR ; + break; + } + /* If driver is unloading let the worker thread continue */ + if (phba->pport->load_flag & FC_UNLOADING) { + phba->work_hs = 0; + break; + } + } + + /* + * This is to ptrotect against a race condition in which + * first write to the host attention register clear the + * host status register. + */ + if ((!phba->work_hs) && (!(phba->pport->load_flag & FC_UNLOADING))) + phba->work_hs = old_host_status & ~HS_FFER1; + + spin_lock_irq(&phba->hbalock); + phba->hba_flag &= ~DEFER_ERATT; + spin_unlock_irq(&phba->hbalock); + phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); + phba->work_status[1] = readl(phba->MBslimaddr + 0xac); +} + +static void +lpfc_board_errevt_to_mgmt(struct lpfc_hba *phba) +{ + struct lpfc_board_event_header board_event; + struct Scsi_Host *shost; + + board_event.event_type = FC_REG_BOARD_EVENT; + board_event.subcategory = LPFC_EVENT_PORTINTERR; + shost = lpfc_shost_from_vport(phba->pport); + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(board_event), + (char *) &board_event, + LPFC_NL_VENDOR_ID); +} + +/** + * lpfc_handle_eratt_s3 - The SLI3 HBA hardware error handler + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to handle the following HBA hardware error + * conditions: + * 1 - HBA error attention interrupt + * 2 - DMA ring index out of range + * 3 - Mailbox command came back as unknown + **/ +static void +lpfc_handle_eratt_s3(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport = phba->pport; + struct lpfc_sli *psli = &phba->sli; + uint32_t event_data; + unsigned long temperature; + struct temp_event temp_event_data; + struct Scsi_Host *shost; + + /* If the pci channel is offline, ignore possible errors, + * since we cannot communicate with the pci card anyway. + */ + if (pci_channel_offline(phba->pcidev)) { + spin_lock_irq(&phba->hbalock); + phba->hba_flag &= ~DEFER_ERATT; + spin_unlock_irq(&phba->hbalock); + return; + } + + /* If resets are disabled then leave the HBA alone and return */ + if (!phba->cfg_enable_hba_reset) + return; + + /* Send an internal error event to mgmt application */ + lpfc_board_errevt_to_mgmt(phba); + + if (phba->hba_flag & DEFER_ERATT) + lpfc_handle_deferred_eratt(phba); + + if ((phba->work_hs & HS_FFER6) || (phba->work_hs & HS_FFER8)) { + if (phba->work_hs & HS_FFER6) + /* Re-establishing Link */ + lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, + "1301 Re-establishing Link " + "Data: x%x x%x x%x\n", + phba->work_hs, phba->work_status[0], + phba->work_status[1]); + if (phba->work_hs & HS_FFER8) + /* Device Zeroization */ + lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT, + "2861 Host Authentication device " + "zeroization Data:x%x x%x x%x\n", + phba->work_hs, phba->work_status[0], + phba->work_status[1]); + + spin_lock_irq(&phba->hbalock); + psli->sli_flag &= ~LPFC_SLI_ACTIVE; + spin_unlock_irq(&phba->hbalock); + + /* + * Firmware stops when it triggled erratt with HS_FFER6. + * That could cause the I/Os dropped by the firmware. + * Error iocb (I/O) on txcmplq and let the SCSI layer + * retry it after re-establishing link. + */ + lpfc_sli_abort_fcp_rings(phba); + + /* + * There was a firmware error. Take the hba offline and then + * attempt to restart it. + */ + lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); + lpfc_offline(phba); + lpfc_sli_brdrestart(phba); + if (lpfc_online(phba) == 0) { /* Initialize the HBA */ + lpfc_unblock_mgmt_io(phba); + return; + } + lpfc_unblock_mgmt_io(phba); + } else if (phba->work_hs & HS_CRIT_TEMP) { + temperature = readl(phba->MBslimaddr + TEMPERATURE_OFFSET); + temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; + temp_event_data.event_code = LPFC_CRIT_TEMP; + temp_event_data.data = (uint32_t)temperature; + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0406 Adapter maximum temperature exceeded " + "(%ld), taking this port offline " + "Data: x%x x%x x%x\n", + temperature, phba->work_hs, + phba->work_status[0], phba->work_status[1]); + + shost = lpfc_shost_from_vport(phba->pport); + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(temp_event_data), + (char *) &temp_event_data, + SCSI_NL_VID_TYPE_PCI + | PCI_VENDOR_ID_EMULEX); + + spin_lock_irq(&phba->hbalock); + phba->over_temp_state = HBA_OVER_TEMP; + spin_unlock_irq(&phba->hbalock); + lpfc_offline_eratt(phba); + + } else { + /* The if clause above forces this code path when the status + * failure is a value other than FFER6. Do not call the offline + * twice. This is the adapter hardware error path. + */ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0457 Adapter Hardware Error " + "Data: x%x x%x x%x\n", + phba->work_hs, + phba->work_status[0], phba->work_status[1]); + + event_data = FC_REG_DUMP_EVENT; + shost = lpfc_shost_from_vport(vport); + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(event_data), (char *) &event_data, + SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); + + lpfc_offline_eratt(phba); + } + return; +} + +/** + * lpfc_sli4_port_sta_fn_reset - The SLI4 function reset due to port status reg + * @phba: pointer to lpfc hba data structure. + * @mbx_action: flag for mailbox shutdown action. + * + * This routine is invoked to perform an SLI4 port PCI function reset in + * response to port status register polling attention. It waits for port + * status register (ERR, RDY, RN) bits before proceeding with function reset. + * During this process, interrupt vectors are freed and later requested + * for handling possible port resource change. + **/ +static int +lpfc_sli4_port_sta_fn_reset(struct lpfc_hba *phba, int mbx_action, + bool en_rn_msg) +{ + int rc; + uint32_t intr_mode; + + if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= + LPFC_SLI_INTF_IF_TYPE_2) { + /* + * On error status condition, driver need to wait for port + * ready before performing reset. + */ + rc = lpfc_sli4_pdev_status_reg_wait(phba); + if (rc) + return rc; + } + + /* need reset: attempt for port recovery */ + if (en_rn_msg) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2887 Reset Needed: Attempting Port " + "Recovery...\n"); + lpfc_offline_prep(phba, mbx_action); + lpfc_offline(phba); + /* release interrupt for possible resource change */ + lpfc_sli4_disable_intr(phba); + rc = lpfc_sli_brdrestart(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6309 Failed to restart board\n"); + return rc; + } + /* request and enable interrupt */ + intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3175 Failed to enable interrupt\n"); + return -EIO; + } + phba->intr_mode = intr_mode; + rc = lpfc_online(phba); + if (rc == 0) + lpfc_unblock_mgmt_io(phba); + + return rc; +} + +/** + * lpfc_handle_eratt_s4 - The SLI4 HBA hardware error handler + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to handle the SLI4 HBA hardware error attention + * conditions. + **/ +static void +lpfc_handle_eratt_s4(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport = phba->pport; + uint32_t event_data; + struct Scsi_Host *shost; + uint32_t if_type; + struct lpfc_register portstat_reg = {0}; + uint32_t reg_err1, reg_err2; + uint32_t uerrlo_reg, uemasklo_reg; + uint32_t smphr_port_status = 0, pci_rd_rc1, pci_rd_rc2; + bool en_rn_msg = true; + struct temp_event temp_event_data; + struct lpfc_register portsmphr_reg; + int rc, i; + + /* If the pci channel is offline, ignore possible errors, since + * we cannot communicate with the pci card anyway. + */ + if (pci_channel_offline(phba->pcidev)) + return; + + memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + pci_rd_rc1 = lpfc_readl( + phba->sli4_hba.u.if_type0.UERRLOregaddr, + &uerrlo_reg); + pci_rd_rc2 = lpfc_readl( + phba->sli4_hba.u.if_type0.UEMASKLOregaddr, + &uemasklo_reg); + /* consider PCI bus read error as pci_channel_offline */ + if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO) + return; + if (!(phba->hba_flag & HBA_RECOVERABLE_UE)) { + lpfc_sli4_offline_eratt(phba); + return; + } + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "7623 Checking UE recoverable"); + + for (i = 0; i < phba->sli4_hba.ue_to_sr / 1000; i++) { + if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, + &portsmphr_reg.word0)) + continue; + + smphr_port_status = bf_get(lpfc_port_smphr_port_status, + &portsmphr_reg); + if ((smphr_port_status & LPFC_PORT_SEM_MASK) == + LPFC_PORT_SEM_UE_RECOVERABLE) + break; + /*Sleep for 1Sec, before checking SEMAPHORE */ + msleep(1000); + } + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "4827 smphr_port_status x%x : Waited %dSec", + smphr_port_status, i); + + /* Recoverable UE, reset the HBA device */ + if ((smphr_port_status & LPFC_PORT_SEM_MASK) == + LPFC_PORT_SEM_UE_RECOVERABLE) { + for (i = 0; i < 20; i++) { + msleep(1000); + if (!lpfc_readl(phba->sli4_hba.PSMPHRregaddr, + &portsmphr_reg.word0) && + (LPFC_POST_STAGE_PORT_READY == + bf_get(lpfc_port_smphr_port_status, + &portsmphr_reg))) { + rc = lpfc_sli4_port_sta_fn_reset(phba, + LPFC_MBX_NO_WAIT, en_rn_msg); + if (rc == 0) + return; + lpfc_printf_log(phba, + KERN_ERR, LOG_INIT, + "4215 Failed to recover UE"); + break; + } + } + } + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "7624 Firmware not ready: Failing UE recovery," + " waited %dSec", i); + lpfc_sli4_offline_eratt(phba); + break; + + case LPFC_SLI_INTF_IF_TYPE_2: + case LPFC_SLI_INTF_IF_TYPE_6: + pci_rd_rc1 = lpfc_readl( + phba->sli4_hba.u.if_type2.STATUSregaddr, + &portstat_reg.word0); + /* consider PCI bus read error as pci_channel_offline */ + if (pci_rd_rc1 == -EIO) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3151 PCI bus read access failure: x%x\n", + readl(phba->sli4_hba.u.if_type2.STATUSregaddr)); + return; + } + reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr); + reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr); + if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2889 Port Overtemperature event, " + "taking port offline Data: x%x x%x\n", + reg_err1, reg_err2); + + phba->sfp_alarm |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; + temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; + temp_event_data.event_code = LPFC_CRIT_TEMP; + temp_event_data.data = 0xFFFFFFFF; + + shost = lpfc_shost_from_vport(phba->pport); + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(temp_event_data), + (char *)&temp_event_data, + SCSI_NL_VID_TYPE_PCI + | PCI_VENDOR_ID_EMULEX); + + spin_lock_irq(&phba->hbalock); + phba->over_temp_state = HBA_OVER_TEMP; + spin_unlock_irq(&phba->hbalock); + lpfc_sli4_offline_eratt(phba); + return; + } + if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && + reg_err2 == SLIPORT_ERR2_REG_FW_RESTART) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3143 Port Down: Firmware Update " + "Detected\n"); + en_rn_msg = false; + } else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && + reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3144 Port Down: Debug Dump\n"); + else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && + reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3145 Port Down: Provisioning\n"); + + /* If resets are disabled then leave the HBA alone and return */ + if (!phba->cfg_enable_hba_reset) + return; + + /* Check port status register for function reset */ + rc = lpfc_sli4_port_sta_fn_reset(phba, LPFC_MBX_NO_WAIT, + en_rn_msg); + if (rc == 0) { + /* don't report event on forced debug dump */ + if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 && + reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP) + return; + else + break; + } + /* fall through for not able to recover */ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3152 Unrecoverable error, bring the port " + "offline\n"); + lpfc_sli4_offline_eratt(phba); + break; + case LPFC_SLI_INTF_IF_TYPE_1: + default: + break; + } + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "3123 Report dump event to upper layer\n"); + /* Send an internal error event to mgmt application */ + lpfc_board_errevt_to_mgmt(phba); + + event_data = FC_REG_DUMP_EVENT; + shost = lpfc_shost_from_vport(vport); + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(event_data), (char *) &event_data, + SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX); +} + +/** + * lpfc_handle_eratt - Wrapper func for handling hba error attention + * @phba: pointer to lpfc HBA data structure. + * + * This routine wraps the actual SLI3 or SLI4 hba error attention handling + * routine from the API jump table function pointer from the lpfc_hba struct. + * + * Return codes + * 0 - success. + * Any other value - error. + **/ +void +lpfc_handle_eratt(struct lpfc_hba *phba) +{ + (*phba->lpfc_handle_eratt)(phba); +} + +/** + * lpfc_handle_latt - The HBA link event handler + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked from the worker thread to handle a HBA host + * attention link event. SLI3 only. + **/ +void +lpfc_handle_latt(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport = phba->pport; + struct lpfc_sli *psli = &phba->sli; + LPFC_MBOXQ_t *pmb; + volatile uint32_t control; + struct lpfc_dmabuf *mp; + int rc = 0; + + pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + rc = 1; + goto lpfc_handle_latt_err_exit; + } + + mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); + if (!mp) { + rc = 2; + goto lpfc_handle_latt_free_pmb; + } + + mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); + if (!mp->virt) { + rc = 3; + goto lpfc_handle_latt_free_mp; + } + + /* Cleanup any outstanding ELS commands */ + lpfc_els_flush_all_cmd(phba); + + psli->slistat.link_event++; + lpfc_read_topology(phba, pmb, mp); + pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; + pmb->vport = vport; + /* Block ELS IOCBs until we have processed this mbox command */ + phba->sli.sli3_ring[LPFC_ELS_RING].flag |= LPFC_STOP_IOCB_EVENT; + rc = lpfc_sli_issue_mbox (phba, pmb, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) { + rc = 4; + goto lpfc_handle_latt_free_mbuf; + } + + /* Clear Link Attention in HA REG */ + spin_lock_irq(&phba->hbalock); + writel(HA_LATT, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + spin_unlock_irq(&phba->hbalock); + + return; + +lpfc_handle_latt_free_mbuf: + phba->sli.sli3_ring[LPFC_ELS_RING].flag &= ~LPFC_STOP_IOCB_EVENT; + lpfc_mbuf_free(phba, mp->virt, mp->phys); +lpfc_handle_latt_free_mp: + kfree(mp); +lpfc_handle_latt_free_pmb: + mempool_free(pmb, phba->mbox_mem_pool); +lpfc_handle_latt_err_exit: + /* Enable Link attention interrupts */ + spin_lock_irq(&phba->hbalock); + psli->sli_flag |= LPFC_PROCESS_LA; + control = readl(phba->HCregaddr); + control |= HC_LAINT_ENA; + writel(control, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + + /* Clear Link Attention in HA REG */ + writel(HA_LATT, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + spin_unlock_irq(&phba->hbalock); + lpfc_linkdown(phba); + phba->link_state = LPFC_HBA_ERROR; + + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, + "0300 LATT: Cannot issue READ_LA: Data:%d\n", rc); + + return; +} + +/** + * lpfc_parse_vpd - Parse VPD (Vital Product Data) + * @phba: pointer to lpfc hba data structure. + * @vpd: pointer to the vital product data. + * @len: length of the vital product data in bytes. + * + * This routine parses the Vital Product Data (VPD). The VPD is treated as + * an array of characters. In this routine, the ModelName, ProgramType, and + * ModelDesc, etc. fields of the phba data structure will be populated. + * + * Return codes + * 0 - pointer to the VPD passed in is NULL + * 1 - success + **/ +int +lpfc_parse_vpd(struct lpfc_hba *phba, uint8_t *vpd, int len) +{ + uint8_t lenlo, lenhi; + int Length; + int i, j; + int finished = 0; + int index = 0; + + if (!vpd) + return 0; + + /* Vital Product */ + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0455 Vital Product Data: x%x x%x x%x x%x\n", + (uint32_t) vpd[0], (uint32_t) vpd[1], (uint32_t) vpd[2], + (uint32_t) vpd[3]); + while (!finished && (index < (len - 4))) { + switch (vpd[index]) { + case 0x82: + case 0x91: + index += 1; + lenlo = vpd[index]; + index += 1; + lenhi = vpd[index]; + index += 1; + i = ((((unsigned short)lenhi) << 8) + lenlo); + index += i; + break; + case 0x90: + index += 1; + lenlo = vpd[index]; + index += 1; + lenhi = vpd[index]; + index += 1; + Length = ((((unsigned short)lenhi) << 8) + lenlo); + if (Length > len - index) + Length = len - index; + while (Length > 0) { + /* Look for Serial Number */ + if ((vpd[index] == 'S') && (vpd[index+1] == 'N')) { + index += 2; + i = vpd[index]; + index += 1; + j = 0; + Length -= (3+i); + while(i--) { + phba->SerialNumber[j++] = vpd[index++]; + if (j == 31) + break; + } + phba->SerialNumber[j] = 0; + continue; + } + else if ((vpd[index] == 'V') && (vpd[index+1] == '1')) { + phba->vpd_flag |= VPD_MODEL_DESC; + index += 2; + i = vpd[index]; + index += 1; + j = 0; + Length -= (3+i); + while(i--) { + phba->ModelDesc[j++] = vpd[index++]; + if (j == 255) + break; + } + phba->ModelDesc[j] = 0; + continue; + } + else if ((vpd[index] == 'V') && (vpd[index+1] == '2')) { + phba->vpd_flag |= VPD_MODEL_NAME; + index += 2; + i = vpd[index]; + index += 1; + j = 0; + Length -= (3+i); + while(i--) { + phba->ModelName[j++] = vpd[index++]; + if (j == 79) + break; + } + phba->ModelName[j] = 0; + continue; + } + else if ((vpd[index] == 'V') && (vpd[index+1] == '3')) { + phba->vpd_flag |= VPD_PROGRAM_TYPE; + index += 2; + i = vpd[index]; + index += 1; + j = 0; + Length -= (3+i); + while(i--) { + phba->ProgramType[j++] = vpd[index++]; + if (j == 255) + break; + } + phba->ProgramType[j] = 0; + continue; + } + else if ((vpd[index] == 'V') && (vpd[index+1] == '4')) { + phba->vpd_flag |= VPD_PORT; + index += 2; + i = vpd[index]; + index += 1; + j = 0; + Length -= (3+i); + while(i--) { + if ((phba->sli_rev == LPFC_SLI_REV4) && + (phba->sli4_hba.pport_name_sta == + LPFC_SLI4_PPNAME_GET)) { + j++; + index++; + } else + phba->Port[j++] = vpd[index++]; + if (j == 19) + break; + } + if ((phba->sli_rev != LPFC_SLI_REV4) || + (phba->sli4_hba.pport_name_sta == + LPFC_SLI4_PPNAME_NON)) + phba->Port[j] = 0; + continue; + } + else { + index += 2; + i = vpd[index]; + index += 1; + index += i; + Length -= (3 + i); + } + } + finished = 0; + break; + case 0x78: + finished = 1; + break; + default: + index ++; + break; + } + } + + return(1); +} + +/** + * lpfc_get_hba_model_desc - Retrieve HBA device model name and description + * @phba: pointer to lpfc hba data structure. + * @mdp: pointer to the data structure to hold the derived model name. + * @descp: pointer to the data structure to hold the derived description. + * + * This routine retrieves HBA's description based on its registered PCI device + * ID. The @descp passed into this function points to an array of 256 chars. It + * shall be returned with the model name, maximum speed, and the host bus type. + * The @mdp passed into this function points to an array of 80 chars. When the + * function returns, the @mdp will be filled with the model name. + **/ +static void +lpfc_get_hba_model_desc(struct lpfc_hba *phba, uint8_t *mdp, uint8_t *descp) +{ + lpfc_vpd_t *vp; + uint16_t dev_id = phba->pcidev->device; + int max_speed; + int GE = 0; + int oneConnect = 0; /* default is not a oneConnect */ + struct { + char *name; + char *bus; + char *function; + } m = {"", "", ""}; + + if (mdp && mdp[0] != '\0' + && descp && descp[0] != '\0') + return; + + if (phba->lmt & LMT_64Gb) + max_speed = 64; + else if (phba->lmt & LMT_32Gb) + max_speed = 32; + else if (phba->lmt & LMT_16Gb) + max_speed = 16; + else if (phba->lmt & LMT_10Gb) + max_speed = 10; + else if (phba->lmt & LMT_8Gb) + max_speed = 8; + else if (phba->lmt & LMT_4Gb) + max_speed = 4; + else if (phba->lmt & LMT_2Gb) + max_speed = 2; + else if (phba->lmt & LMT_1Gb) + max_speed = 1; + else + max_speed = 0; + + vp = &phba->vpd; + + switch (dev_id) { + case PCI_DEVICE_ID_FIREFLY: + m = (typeof(m)){"LP6000", "PCI", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SUPERFLY: + if (vp->rev.biuRev >= 1 && vp->rev.biuRev <= 3) + m = (typeof(m)){"LP7000", "PCI", ""}; + else + m = (typeof(m)){"LP7000E", "PCI", ""}; + m.function = "Obsolete, Unsupported Fibre Channel Adapter"; + break; + case PCI_DEVICE_ID_DRAGONFLY: + m = (typeof(m)){"LP8000", "PCI", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_CENTAUR: + if (FC_JEDEC_ID(vp->rev.biuRev) == CENTAUR_2G_JEDEC_ID) + m = (typeof(m)){"LP9002", "PCI", ""}; + else + m = (typeof(m)){"LP9000", "PCI", ""}; + m.function = "Obsolete, Unsupported Fibre Channel Adapter"; + break; + case PCI_DEVICE_ID_RFLY: + m = (typeof(m)){"LP952", "PCI", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_PEGASUS: + m = (typeof(m)){"LP9802", "PCI-X", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_THOR: + m = (typeof(m)){"LP10000", "PCI-X", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_VIPER: + m = (typeof(m)){"LPX1000", "PCI-X", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_PFLY: + m = (typeof(m)){"LP982", "PCI-X", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_TFLY: + m = (typeof(m)){"LP1050", "PCI-X", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_HELIOS: + m = (typeof(m)){"LP11000", "PCI-X2", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_HELIOS_SCSP: + m = (typeof(m)){"LP11000-SP", "PCI-X2", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_HELIOS_DCSP: + m = (typeof(m)){"LP11002-SP", "PCI-X2", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_NEPTUNE: + m = (typeof(m)){"LPe1000", "PCIe", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_NEPTUNE_SCSP: + m = (typeof(m)){"LPe1000-SP", "PCIe", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_NEPTUNE_DCSP: + m = (typeof(m)){"LPe1002-SP", "PCIe", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_BMID: + m = (typeof(m)){"LP1150", "PCI-X2", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_BSMB: + m = (typeof(m)){"LP111", "PCI-X2", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_ZEPHYR: + m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_ZEPHYR_SCSP: + m = (typeof(m)){"LPe11000", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_ZEPHYR_DCSP: + m = (typeof(m)){"LP2105", "PCIe", "FCoE Adapter"}; + GE = 1; + break; + case PCI_DEVICE_ID_ZMID: + m = (typeof(m)){"LPe1150", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_ZSMB: + m = (typeof(m)){"LPe111", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LP101: + m = (typeof(m)){"LP101", "PCI-X", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LP10000S: + m = (typeof(m)){"LP10000-S", "PCI", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LP11000S: + m = (typeof(m)){"LP11000-S", "PCI-X2", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LPE11000S: + m = (typeof(m)){"LPe11000-S", "PCIe", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SAT: + m = (typeof(m)){"LPe12000", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SAT_MID: + m = (typeof(m)){"LPe1250", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SAT_SMB: + m = (typeof(m)){"LPe121", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SAT_DCSP: + m = (typeof(m)){"LPe12002-SP", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SAT_SCSP: + m = (typeof(m)){"LPe12000-SP", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SAT_S: + m = (typeof(m)){"LPe12000-S", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_HORNET: + m = (typeof(m)){"LP21000", "PCIe", + "Obsolete, Unsupported FCoE Adapter"}; + GE = 1; + break; + case PCI_DEVICE_ID_PROTEUS_VF: + m = (typeof(m)){"LPev12000", "PCIe IOV", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_PROTEUS_PF: + m = (typeof(m)){"LPev12000", "PCIe IOV", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_PROTEUS_S: + m = (typeof(m)){"LPemv12002-S", "PCIe IOV", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_TIGERSHARK: + oneConnect = 1; + m = (typeof(m)){"OCe10100", "PCIe", "FCoE"}; + break; + case PCI_DEVICE_ID_TOMCAT: + oneConnect = 1; + m = (typeof(m)){"OCe11100", "PCIe", "FCoE"}; + break; + case PCI_DEVICE_ID_FALCON: + m = (typeof(m)){"LPSe12002-ML1-E", "PCIe", + "EmulexSecure Fibre"}; + break; + case PCI_DEVICE_ID_BALIUS: + m = (typeof(m)){"LPVe12002", "PCIe Shared I/O", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LANCER_FC: + m = (typeof(m)){"LPe16000", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LANCER_FC_VF: + m = (typeof(m)){"LPe16000", "PCIe", + "Obsolete, Unsupported Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LANCER_FCOE: + oneConnect = 1; + m = (typeof(m)){"OCe15100", "PCIe", "FCoE"}; + break; + case PCI_DEVICE_ID_LANCER_FCOE_VF: + oneConnect = 1; + m = (typeof(m)){"OCe15100", "PCIe", + "Obsolete, Unsupported FCoE"}; + break; + case PCI_DEVICE_ID_LANCER_G6_FC: + m = (typeof(m)){"LPe32000", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_LANCER_G7_FC: + m = (typeof(m)){"LPe36000", "PCIe", "Fibre Channel Adapter"}; + break; + case PCI_DEVICE_ID_SKYHAWK: + case PCI_DEVICE_ID_SKYHAWK_VF: + oneConnect = 1; + m = (typeof(m)){"OCe14000", "PCIe", "FCoE"}; + break; + default: + m = (typeof(m)){"Unknown", "", ""}; + break; + } + + if (mdp && mdp[0] == '\0') + snprintf(mdp, 79,"%s", m.name); + /* + * oneConnect hba requires special processing, they are all initiators + * and we put the port number on the end + */ + if (descp && descp[0] == '\0') { + if (oneConnect) + snprintf(descp, 255, + "Emulex OneConnect %s, %s Initiator %s", + m.name, m.function, + phba->Port); + else if (max_speed == 0) + snprintf(descp, 255, + "Emulex %s %s %s", + m.name, m.bus, m.function); + else + snprintf(descp, 255, + "Emulex %s %d%s %s %s", + m.name, max_speed, (GE) ? "GE" : "Gb", + m.bus, m.function); + } +} + +/** + * lpfc_post_buffer - Post IOCB(s) with DMA buffer descriptor(s) to a IOCB ring + * @phba: pointer to lpfc hba data structure. + * @pring: pointer to a IOCB ring. + * @cnt: the number of IOCBs to be posted to the IOCB ring. + * + * This routine posts a given number of IOCBs with the associated DMA buffer + * descriptors specified by the cnt argument to the given IOCB ring. + * + * Return codes + * The number of IOCBs NOT able to be posted to the IOCB ring. + **/ +int +lpfc_post_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, int cnt) +{ + IOCB_t *icmd; + struct lpfc_iocbq *iocb; + struct lpfc_dmabuf *mp1, *mp2; + + cnt += pring->missbufcnt; + + /* While there are buffers to post */ + while (cnt > 0) { + /* Allocate buffer for command iocb */ + iocb = lpfc_sli_get_iocbq(phba); + if (iocb == NULL) { + pring->missbufcnt = cnt; + return cnt; + } + icmd = &iocb->iocb; + + /* 2 buffers can be posted per command */ + /* Allocate buffer to post */ + mp1 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); + if (mp1) + mp1->virt = lpfc_mbuf_alloc(phba, MEM_PRI, &mp1->phys); + if (!mp1 || !mp1->virt) { + kfree(mp1); + lpfc_sli_release_iocbq(phba, iocb); + pring->missbufcnt = cnt; + return cnt; + } + + INIT_LIST_HEAD(&mp1->list); + /* Allocate buffer to post */ + if (cnt > 1) { + mp2 = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL); + if (mp2) + mp2->virt = lpfc_mbuf_alloc(phba, MEM_PRI, + &mp2->phys); + if (!mp2 || !mp2->virt) { + kfree(mp2); + lpfc_mbuf_free(phba, mp1->virt, mp1->phys); + kfree(mp1); + lpfc_sli_release_iocbq(phba, iocb); + pring->missbufcnt = cnt; + return cnt; + } + + INIT_LIST_HEAD(&mp2->list); + } else { + mp2 = NULL; + } + + icmd->un.cont64[0].addrHigh = putPaddrHigh(mp1->phys); + icmd->un.cont64[0].addrLow = putPaddrLow(mp1->phys); + icmd->un.cont64[0].tus.f.bdeSize = FCELSSIZE; + icmd->ulpBdeCount = 1; + cnt--; + if (mp2) { + icmd->un.cont64[1].addrHigh = putPaddrHigh(mp2->phys); + icmd->un.cont64[1].addrLow = putPaddrLow(mp2->phys); + icmd->un.cont64[1].tus.f.bdeSize = FCELSSIZE; + cnt--; + icmd->ulpBdeCount = 2; + } + + icmd->ulpCommand = CMD_QUE_RING_BUF64_CN; + icmd->ulpLe = 1; + + if (lpfc_sli_issue_iocb(phba, pring->ringno, iocb, 0) == + IOCB_ERROR) { + lpfc_mbuf_free(phba, mp1->virt, mp1->phys); + kfree(mp1); + cnt++; + if (mp2) { + lpfc_mbuf_free(phba, mp2->virt, mp2->phys); + kfree(mp2); + cnt++; + } + lpfc_sli_release_iocbq(phba, iocb); + pring->missbufcnt = cnt; + return cnt; + } + lpfc_sli_ringpostbuf_put(phba, pring, mp1); + if (mp2) + lpfc_sli_ringpostbuf_put(phba, pring, mp2); + } + pring->missbufcnt = 0; + return 0; +} + +/** + * lpfc_post_rcv_buf - Post the initial receive IOCB buffers to ELS ring + * @phba: pointer to lpfc hba data structure. + * + * This routine posts initial receive IOCB buffers to the ELS ring. The + * current number of initial IOCB buffers specified by LPFC_BUF_RING0 is + * set to 64 IOCBs. SLI3 only. + * + * Return codes + * 0 - success (currently always success) + **/ +static int +lpfc_post_rcv_buf(struct lpfc_hba *phba) +{ + struct lpfc_sli *psli = &phba->sli; + + /* Ring 0, ELS / CT buffers */ + lpfc_post_buffer(phba, &psli->sli3_ring[LPFC_ELS_RING], LPFC_BUF_RING0); + /* Ring 2 - FCP no buffers needed */ + + return 0; +} + +#define S(N,V) (((V)<<(N))|((V)>>(32-(N)))) + +/** + * lpfc_sha_init - Set up initial array of hash table entries + * @HashResultPointer: pointer to an array as hash table. + * + * This routine sets up the initial values to the array of hash table entries + * for the LC HBAs. + **/ +static void +lpfc_sha_init(uint32_t * HashResultPointer) +{ + HashResultPointer[0] = 0x67452301; + HashResultPointer[1] = 0xEFCDAB89; + HashResultPointer[2] = 0x98BADCFE; + HashResultPointer[3] = 0x10325476; + HashResultPointer[4] = 0xC3D2E1F0; +} + +/** + * lpfc_sha_iterate - Iterate initial hash table with the working hash table + * @HashResultPointer: pointer to an initial/result hash table. + * @HashWorkingPointer: pointer to an working hash table. + * + * This routine iterates an initial hash table pointed by @HashResultPointer + * with the values from the working hash table pointeed by @HashWorkingPointer. + * The results are putting back to the initial hash table, returned through + * the @HashResultPointer as the result hash table. + **/ +static void +lpfc_sha_iterate(uint32_t * HashResultPointer, uint32_t * HashWorkingPointer) +{ + int t; + uint32_t TEMP; + uint32_t A, B, C, D, E; + t = 16; + do { + HashWorkingPointer[t] = + S(1, + HashWorkingPointer[t - 3] ^ HashWorkingPointer[t - + 8] ^ + HashWorkingPointer[t - 14] ^ HashWorkingPointer[t - 16]); + } while (++t <= 79); + t = 0; + A = HashResultPointer[0]; + B = HashResultPointer[1]; + C = HashResultPointer[2]; + D = HashResultPointer[3]; + E = HashResultPointer[4]; + + do { + if (t < 20) { + TEMP = ((B & C) | ((~B) & D)) + 0x5A827999; + } else if (t < 40) { + TEMP = (B ^ C ^ D) + 0x6ED9EBA1; + } else if (t < 60) { + TEMP = ((B & C) | (B & D) | (C & D)) + 0x8F1BBCDC; + } else { + TEMP = (B ^ C ^ D) + 0xCA62C1D6; + } + TEMP += S(5, A) + E + HashWorkingPointer[t]; + E = D; + D = C; + C = S(30, B); + B = A; + A = TEMP; + } while (++t <= 79); + + HashResultPointer[0] += A; + HashResultPointer[1] += B; + HashResultPointer[2] += C; + HashResultPointer[3] += D; + HashResultPointer[4] += E; + +} + +/** + * lpfc_challenge_key - Create challenge key based on WWPN of the HBA + * @RandomChallenge: pointer to the entry of host challenge random number array. + * @HashWorking: pointer to the entry of the working hash array. + * + * This routine calculates the working hash array referred by @HashWorking + * from the challenge random numbers associated with the host, referred by + * @RandomChallenge. The result is put into the entry of the working hash + * array and returned by reference through @HashWorking. + **/ +static void +lpfc_challenge_key(uint32_t * RandomChallenge, uint32_t * HashWorking) +{ + *HashWorking = (*RandomChallenge ^ *HashWorking); +} + +/** + * lpfc_hba_init - Perform special handling for LC HBA initialization + * @phba: pointer to lpfc hba data structure. + * @hbainit: pointer to an array of unsigned 32-bit integers. + * + * This routine performs the special handling for LC HBA initialization. + **/ +void +lpfc_hba_init(struct lpfc_hba *phba, uint32_t *hbainit) +{ + int t; + uint32_t *HashWorking; + uint32_t *pwwnn = (uint32_t *) phba->wwnn; + + HashWorking = kcalloc(80, sizeof(uint32_t), GFP_KERNEL); + if (!HashWorking) + return; + + HashWorking[0] = HashWorking[78] = *pwwnn++; + HashWorking[1] = HashWorking[79] = *pwwnn; + + for (t = 0; t < 7; t++) + lpfc_challenge_key(phba->RandomData + t, HashWorking + t); + + lpfc_sha_init(hbainit); + lpfc_sha_iterate(hbainit, HashWorking); + kfree(HashWorking); +} + +/** + * lpfc_cleanup - Performs vport cleanups before deleting a vport + * @vport: pointer to a virtual N_Port data structure. + * + * This routine performs the necessary cleanups before deleting the @vport. + * It invokes the discovery state machine to perform necessary state + * transitions and to release the ndlps associated with the @vport. Note, + * the physical port is treated as @vport 0. + **/ +void +lpfc_cleanup(struct lpfc_vport *vport) +{ + struct lpfc_hba *phba = vport->phba; + struct lpfc_nodelist *ndlp, *next_ndlp; + int i = 0; + + if (phba->link_state > LPFC_LINK_DOWN) + lpfc_port_link_failure(vport); + + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp)) { + ndlp = lpfc_enable_node(vport, ndlp, + NLP_STE_UNUSED_NODE); + if (!ndlp) + continue; + spin_lock_irq(&phba->ndlp_lock); + NLP_SET_FREE_REQ(ndlp); + spin_unlock_irq(&phba->ndlp_lock); + /* Trigger the release of the ndlp memory */ + lpfc_nlp_put(ndlp); + continue; + } + spin_lock_irq(&phba->ndlp_lock); + if (NLP_CHK_FREE_REQ(ndlp)) { + /* The ndlp should not be in memory free mode already */ + spin_unlock_irq(&phba->ndlp_lock); + continue; + } else + /* Indicate request for freeing ndlp memory */ + NLP_SET_FREE_REQ(ndlp); + spin_unlock_irq(&phba->ndlp_lock); + + if (vport->port_type != LPFC_PHYSICAL_PORT && + ndlp->nlp_DID == Fabric_DID) { + /* Just free up ndlp with Fabric_DID for vports */ + lpfc_nlp_put(ndlp); + continue; + } + + /* take care of nodes in unused state before the state + * machine taking action. + */ + if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) { + lpfc_nlp_put(ndlp); + continue; + } + + if (ndlp->nlp_type & NLP_FABRIC) + lpfc_disc_state_machine(vport, ndlp, NULL, + NLP_EVT_DEVICE_RECOVERY); + + lpfc_disc_state_machine(vport, ndlp, NULL, + NLP_EVT_DEVICE_RM); + } + + /* At this point, ALL ndlp's should be gone + * because of the previous NLP_EVT_DEVICE_RM. + * Lets wait for this to happen, if needed. + */ + while (!list_empty(&vport->fc_nodes)) { + if (i++ > 3000) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_DISCOVERY, + "0233 Nodelist not empty\n"); + list_for_each_entry_safe(ndlp, next_ndlp, + &vport->fc_nodes, nlp_listp) { + lpfc_printf_vlog(ndlp->vport, KERN_ERR, + LOG_NODE, + "0282 did:x%x ndlp:x%p " + "usgmap:x%x refcnt:%d\n", + ndlp->nlp_DID, (void *)ndlp, + ndlp->nlp_usg_map, + kref_read(&ndlp->kref)); + } + break; + } + + /* Wait for any activity on ndlps to settle */ + msleep(10); + } + lpfc_cleanup_vports_rrqs(vport, NULL); +} + +/** + * lpfc_stop_vport_timers - Stop all the timers associated with a vport + * @vport: pointer to a virtual N_Port data structure. + * + * This routine stops all the timers associated with a @vport. This function + * is invoked before disabling or deleting a @vport. Note that the physical + * port is treated as @vport 0. + **/ +void +lpfc_stop_vport_timers(struct lpfc_vport *vport) +{ + del_timer_sync(&vport->els_tmofunc); + del_timer_sync(&vport->delayed_disc_tmo); + lpfc_can_disctmo(vport); + return; +} + +/** + * __lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer + * @phba: pointer to lpfc hba data structure. + * + * This routine stops the SLI4 FCF rediscover wait timer if it's on. The + * caller of this routine should already hold the host lock. + **/ +void +__lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) +{ + /* Clear pending FCF rediscovery wait flag */ + phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; + + /* Now, try to stop the timer */ + del_timer(&phba->fcf.redisc_wait); +} + +/** + * lpfc_sli4_stop_fcf_redisc_wait_timer - Stop FCF rediscovery wait timer + * @phba: pointer to lpfc hba data structure. + * + * This routine stops the SLI4 FCF rediscover wait timer if it's on. It + * checks whether the FCF rediscovery wait timer is pending with the host + * lock held before proceeding with disabling the timer and clearing the + * wait timer pendig flag. + **/ +void +lpfc_sli4_stop_fcf_redisc_wait_timer(struct lpfc_hba *phba) +{ + spin_lock_irq(&phba->hbalock); + if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { + /* FCF rediscovery timer already fired or stopped */ + spin_unlock_irq(&phba->hbalock); + return; + } + __lpfc_sli4_stop_fcf_redisc_wait_timer(phba); + /* Clear failover in progress flags */ + phba->fcf.fcf_flag &= ~(FCF_DEAD_DISC | FCF_ACVL_DISC); + spin_unlock_irq(&phba->hbalock); +} + +/** + * lpfc_stop_hba_timers - Stop all the timers associated with an HBA + * @phba: pointer to lpfc hba data structure. + * + * This routine stops all the timers associated with a HBA. This function is + * invoked before either putting a HBA offline or unloading the driver. + **/ +void +lpfc_stop_hba_timers(struct lpfc_hba *phba) +{ + lpfc_stop_vport_timers(phba->pport); + del_timer_sync(&phba->sli.mbox_tmo); + del_timer_sync(&phba->fabric_block_timer); + del_timer_sync(&phba->eratt_poll); + del_timer_sync(&phba->hb_tmofunc); + if (phba->sli_rev == LPFC_SLI_REV4) { + del_timer_sync(&phba->rrq_tmr); + phba->hba_flag &= ~HBA_RRQ_ACTIVE; + } + phba->hb_outstanding = 0; + + switch (phba->pci_dev_grp) { + case LPFC_PCI_DEV_LP: + /* Stop any LightPulse device specific driver timers */ + del_timer_sync(&phba->fcp_poll_timer); + break; + case LPFC_PCI_DEV_OC: + /* Stop any OneConnect device sepcific driver timers */ + lpfc_sli4_stop_fcf_redisc_wait_timer(phba); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0297 Invalid device group (x%x)\n", + phba->pci_dev_grp); + break; + } + return; +} + +/** + * lpfc_block_mgmt_io - Mark a HBA's management interface as blocked + * @phba: pointer to lpfc hba data structure. + * + * This routine marks a HBA's management interface as blocked. Once the HBA's + * management interface is marked as blocked, all the user space access to + * the HBA, whether they are from sysfs interface or libdfc interface will + * all be blocked. The HBA is set to block the management interface when the + * driver prepares the HBA interface for online or offline. + **/ +static void +lpfc_block_mgmt_io(struct lpfc_hba *phba, int mbx_action) +{ + unsigned long iflag; + uint8_t actcmd = MBX_HEARTBEAT; + unsigned long timeout; + + spin_lock_irqsave(&phba->hbalock, iflag); + phba->sli.sli_flag |= LPFC_BLOCK_MGMT_IO; + spin_unlock_irqrestore(&phba->hbalock, iflag); + if (mbx_action == LPFC_MBX_NO_WAIT) + return; + timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies; + spin_lock_irqsave(&phba->hbalock, iflag); + if (phba->sli.mbox_active) { + actcmd = phba->sli.mbox_active->u.mb.mbxCommand; + /* Determine how long we might wait for the active mailbox + * command to be gracefully completed by firmware. + */ + timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, + phba->sli.mbox_active) * 1000) + jiffies; + } + spin_unlock_irqrestore(&phba->hbalock, iflag); + + /* Wait for the outstnading mailbox command to complete */ + while (phba->sli.mbox_active) { + /* Check active mailbox complete status every 2ms */ + msleep(2); + if (time_after(jiffies, timeout)) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2813 Mgmt IO is Blocked %x " + "- mbox cmd %x still active\n", + phba->sli.sli_flag, actcmd); + break; + } + } +} + +/** + * lpfc_sli4_node_prep - Assign RPIs for active nodes. + * @phba: pointer to lpfc hba data structure. + * + * Allocate RPIs for all active remote nodes. This is needed whenever + * an SLI4 adapter is reset and the driver is not unloading. Its purpose + * is to fixup the temporary rpi assignments. + **/ +void +lpfc_sli4_node_prep(struct lpfc_hba *phba) +{ + struct lpfc_nodelist *ndlp, *next_ndlp; + struct lpfc_vport **vports; + int i, rpi; + unsigned long flags; + + if (phba->sli_rev != LPFC_SLI_REV4) + return; + + vports = lpfc_create_vport_work_array(phba); + if (vports == NULL) + return; + + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + if (vports[i]->load_flag & FC_UNLOADING) + continue; + + list_for_each_entry_safe(ndlp, next_ndlp, + &vports[i]->fc_nodes, + nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp)) + continue; + rpi = lpfc_sli4_alloc_rpi(phba); + if (rpi == LPFC_RPI_ALLOC_ERROR) { + spin_lock_irqsave(&phba->ndlp_lock, flags); + NLP_CLR_NODE_ACT(ndlp); + spin_unlock_irqrestore(&phba->ndlp_lock, flags); + continue; + } + ndlp->nlp_rpi = rpi; + lpfc_printf_vlog(ndlp->vport, KERN_INFO, LOG_NODE, + "0009 rpi:%x DID:%x " + "flg:%x map:%x %p\n", ndlp->nlp_rpi, + ndlp->nlp_DID, ndlp->nlp_flag, + ndlp->nlp_usg_map, ndlp); + } + } + lpfc_destroy_vport_work_array(phba, vports); +} + +/** + * lpfc_online - Initialize and bring a HBA online + * @phba: pointer to lpfc hba data structure. + * + * This routine initializes the HBA and brings a HBA online. During this + * process, the management interface is blocked to prevent user space access + * to the HBA interfering with the driver initialization. + * + * Return codes + * 0 - successful + * 1 - failed + **/ +int +lpfc_online(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport; + struct lpfc_vport **vports; + int i, error = 0; + bool vpis_cleared = false; + + if (!phba) + return 0; + vport = phba->pport; + + if (!(vport->fc_flag & FC_OFFLINE_MODE)) + return 0; + + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0458 Bring Adapter online\n"); + + lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); + + if (phba->sli_rev == LPFC_SLI_REV4) { + if (lpfc_sli4_hba_setup(phba)) { /* Initialize SLI4 HBA */ + lpfc_unblock_mgmt_io(phba); + return 1; + } + spin_lock_irq(&phba->hbalock); + if (!phba->sli4_hba.max_cfg_param.vpi_used) + vpis_cleared = true; + spin_unlock_irq(&phba->hbalock); + + /* Reestablish the local initiator port. + * The offline process destroyed the previous lport. + */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && + !phba->nvmet_support) { + error = lpfc_nvme_create_localport(phba->pport); + if (error) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6132 NVME restore reg failed " + "on nvmei error x%x\n", error); + } + } else { + lpfc_sli_queue_init(phba); + if (lpfc_sli_hba_setup(phba)) { /* Initialize SLI2/SLI3 HBA */ + lpfc_unblock_mgmt_io(phba); + return 1; + } + } + + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) { + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + struct Scsi_Host *shost; + shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(shost->host_lock); + vports[i]->fc_flag &= ~FC_OFFLINE_MODE; + if (phba->sli3_options & LPFC_SLI3_NPIV_ENABLED) + vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; + if (phba->sli_rev == LPFC_SLI_REV4) { + vports[i]->fc_flag |= FC_VPORT_NEEDS_INIT_VPI; + if ((vpis_cleared) && + (vports[i]->port_type != + LPFC_PHYSICAL_PORT)) + vports[i]->vpi = 0; + } + spin_unlock_irq(shost->host_lock); + } + } + lpfc_destroy_vport_work_array(phba, vports); + + lpfc_unblock_mgmt_io(phba); + return 0; +} + +/** + * lpfc_unblock_mgmt_io - Mark a HBA's management interface to be not blocked + * @phba: pointer to lpfc hba data structure. + * + * This routine marks a HBA's management interface as not blocked. Once the + * HBA's management interface is marked as not blocked, all the user space + * access to the HBA, whether they are from sysfs interface or libdfc + * interface will be allowed. The HBA is set to block the management interface + * when the driver prepares the HBA interface for online or offline and then + * set to unblock the management interface afterwards. + **/ +void +lpfc_unblock_mgmt_io(struct lpfc_hba * phba) +{ + unsigned long iflag; + + spin_lock_irqsave(&phba->hbalock, iflag); + phba->sli.sli_flag &= ~LPFC_BLOCK_MGMT_IO; + spin_unlock_irqrestore(&phba->hbalock, iflag); +} + +/** + * lpfc_offline_prep - Prepare a HBA to be brought offline + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to prepare a HBA to be brought offline. It performs + * unregistration login to all the nodes on all vports and flushes the mailbox + * queue to make it ready to be brought offline. + **/ +void +lpfc_offline_prep(struct lpfc_hba *phba, int mbx_action) +{ + struct lpfc_vport *vport = phba->pport; + struct lpfc_nodelist *ndlp, *next_ndlp; + struct lpfc_vport **vports; + struct Scsi_Host *shost; + int i; + + if (vport->fc_flag & FC_OFFLINE_MODE) + return; + + lpfc_block_mgmt_io(phba, mbx_action); + + lpfc_linkdown(phba); + + /* Issue an unreg_login to all nodes on all vports */ + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) { + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + if (vports[i]->load_flag & FC_UNLOADING) + continue; + shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(shost->host_lock); + vports[i]->vpi_state &= ~LPFC_VPI_REGISTERED; + vports[i]->fc_flag |= FC_VPORT_NEEDS_REG_VPI; + vports[i]->fc_flag &= ~FC_VFI_REGISTERED; + spin_unlock_irq(shost->host_lock); + + shost = lpfc_shost_from_vport(vports[i]); + list_for_each_entry_safe(ndlp, next_ndlp, + &vports[i]->fc_nodes, + nlp_listp) { + if (!NLP_CHK_NODE_ACT(ndlp)) + continue; + if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) + continue; + if (ndlp->nlp_type & NLP_FABRIC) { + lpfc_disc_state_machine(vports[i], ndlp, + NULL, NLP_EVT_DEVICE_RECOVERY); + lpfc_disc_state_machine(vports[i], ndlp, + NULL, NLP_EVT_DEVICE_RM); + } + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag &= ~NLP_NPR_ADISC; + spin_unlock_irq(shost->host_lock); + /* + * Whenever an SLI4 port goes offline, free the + * RPI. Get a new RPI when the adapter port + * comes back online. + */ + if (phba->sli_rev == LPFC_SLI_REV4) { + lpfc_printf_vlog(ndlp->vport, + KERN_INFO, LOG_NODE, + "0011 lpfc_offline: " + "ndlp:x%p did %x " + "usgmap:x%x rpi:%x\n", + ndlp, ndlp->nlp_DID, + ndlp->nlp_usg_map, + ndlp->nlp_rpi); + + lpfc_sli4_free_rpi(phba, ndlp->nlp_rpi); + } + lpfc_unreg_rpi(vports[i], ndlp); + } + } + } + lpfc_destroy_vport_work_array(phba, vports); + + lpfc_sli_mbox_sys_shutdown(phba, mbx_action); + + if (phba->wq) + flush_workqueue(phba->wq); +} + +/** + * lpfc_offline - Bring a HBA offline + * @phba: pointer to lpfc hba data structure. + * + * This routine actually brings a HBA offline. It stops all the timers + * associated with the HBA, brings down the SLI layer, and eventually + * marks the HBA as in offline state for the upper layer protocol. + **/ +void +lpfc_offline(struct lpfc_hba *phba) +{ + struct Scsi_Host *shost; + struct lpfc_vport **vports; + int i; + + if (phba->pport->fc_flag & FC_OFFLINE_MODE) + return; + + /* stop port and all timers associated with this hba */ + lpfc_stop_port(phba); + + /* Tear down the local and target port registrations. The + * nvme transports need to cleanup. + */ + lpfc_nvmet_destroy_targetport(phba); + lpfc_nvme_destroy_localport(phba->pport); + + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) + lpfc_stop_vport_timers(vports[i]); + lpfc_destroy_vport_work_array(phba, vports); + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0460 Bring Adapter offline\n"); + /* Bring down the SLI Layer and cleanup. The HBA is offline + now. */ + lpfc_sli_hba_down(phba); + spin_lock_irq(&phba->hbalock); + phba->work_ha = 0; + spin_unlock_irq(&phba->hbalock); + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + shost = lpfc_shost_from_vport(vports[i]); + spin_lock_irq(shost->host_lock); + vports[i]->work_port_events = 0; + vports[i]->fc_flag |= FC_OFFLINE_MODE; + spin_unlock_irq(shost->host_lock); + } + lpfc_destroy_vport_work_array(phba, vports); +} + +/** + * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists + * @phba: pointer to lpfc hba data structure. + * + * This routine is to free all the SCSI buffers and IOCBs from the driver + * list back to kernel. It is called from lpfc_pci_remove_one to free + * the internal resources before the device is removed from the system. + **/ +static void +lpfc_scsi_free(struct lpfc_hba *phba) +{ + struct lpfc_scsi_buf *sb, *sb_next; + + if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) + return; + + spin_lock_irq(&phba->hbalock); + + /* Release all the lpfc_scsi_bufs maintained by this host. */ + + spin_lock(&phba->scsi_buf_list_put_lock); + list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_put, + list) { + list_del(&sb->list); + dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, + sb->dma_handle); + kfree(sb); + phba->total_scsi_bufs--; + } + spin_unlock(&phba->scsi_buf_list_put_lock); + + spin_lock(&phba->scsi_buf_list_get_lock); + list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list_get, + list) { + list_del(&sb->list); + dma_pool_free(phba->lpfc_sg_dma_buf_pool, sb->data, + sb->dma_handle); + kfree(sb); + phba->total_scsi_bufs--; + } + spin_unlock(&phba->scsi_buf_list_get_lock); + spin_unlock_irq(&phba->hbalock); +} +/** + * lpfc_nvme_free - Free all the NVME buffers and IOCBs from driver lists + * @phba: pointer to lpfc hba data structure. + * + * This routine is to free all the NVME buffers and IOCBs from the driver + * list back to kernel. It is called from lpfc_pci_remove_one to free + * the internal resources before the device is removed from the system. + **/ +static void +lpfc_nvme_free(struct lpfc_hba *phba) +{ + struct lpfc_nvme_buf *lpfc_ncmd, *lpfc_ncmd_next; + + if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) + return; + + spin_lock_irq(&phba->hbalock); + + /* Release all the lpfc_nvme_bufs maintained by this host. */ + spin_lock(&phba->nvme_buf_list_put_lock); + list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, + &phba->lpfc_nvme_buf_list_put, list) { + list_del(&lpfc_ncmd->list); + phba->put_nvme_bufs--; + dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, + lpfc_ncmd->dma_handle); + kfree(lpfc_ncmd); + phba->total_nvme_bufs--; + } + spin_unlock(&phba->nvme_buf_list_put_lock); + + spin_lock(&phba->nvme_buf_list_get_lock); + list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, + &phba->lpfc_nvme_buf_list_get, list) { + list_del(&lpfc_ncmd->list); + phba->get_nvme_bufs--; + dma_pool_free(phba->lpfc_sg_dma_buf_pool, lpfc_ncmd->data, + lpfc_ncmd->dma_handle); + kfree(lpfc_ncmd); + phba->total_nvme_bufs--; + } + spin_unlock(&phba->nvme_buf_list_get_lock); + spin_unlock_irq(&phba->hbalock); +} +/** + * lpfc_sli4_els_sgl_update - update ELS xri-sgl sizing and mapping + * @phba: pointer to lpfc hba data structure. + * + * This routine first calculates the sizes of the current els and allocated + * scsi sgl lists, and then goes through all sgls to updates the physical + * XRIs assigned due to port function reset. During port initialization, the + * current els and allocated scsi sgl lists are 0s. + * + * Return codes + * 0 - successful (for now, it always returns 0) + **/ +int +lpfc_sli4_els_sgl_update(struct lpfc_hba *phba) +{ + struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; + uint16_t i, lxri, xri_cnt, els_xri_cnt; + LIST_HEAD(els_sgl_list); + int rc; + + /* + * update on pci function's els xri-sgl list + */ + els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); + + if (els_xri_cnt > phba->sli4_hba.els_xri_cnt) { + /* els xri-sgl expanded */ + xri_cnt = els_xri_cnt - phba->sli4_hba.els_xri_cnt; + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3157 ELS xri-sgl count increased from " + "%d to %d\n", phba->sli4_hba.els_xri_cnt, + els_xri_cnt); + /* allocate the additional els sgls */ + for (i = 0; i < xri_cnt; i++) { + sglq_entry = kzalloc(sizeof(struct lpfc_sglq), + GFP_KERNEL); + if (sglq_entry == NULL) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2562 Failure to allocate an " + "ELS sgl entry:%d\n", i); + rc = -ENOMEM; + goto out_free_mem; + } + sglq_entry->buff_type = GEN_BUFF_TYPE; + sglq_entry->virt = lpfc_mbuf_alloc(phba, 0, + &sglq_entry->phys); + if (sglq_entry->virt == NULL) { + kfree(sglq_entry); + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2563 Failure to allocate an " + "ELS mbuf:%d\n", i); + rc = -ENOMEM; + goto out_free_mem; + } + sglq_entry->sgl = sglq_entry->virt; + memset(sglq_entry->sgl, 0, LPFC_BPL_SIZE); + sglq_entry->state = SGL_FREED; + list_add_tail(&sglq_entry->list, &els_sgl_list); + } + spin_lock_irq(&phba->hbalock); + spin_lock(&phba->sli4_hba.sgl_list_lock); + list_splice_init(&els_sgl_list, + &phba->sli4_hba.lpfc_els_sgl_list); + spin_unlock(&phba->sli4_hba.sgl_list_lock); + spin_unlock_irq(&phba->hbalock); + } else if (els_xri_cnt < phba->sli4_hba.els_xri_cnt) { + /* els xri-sgl shrinked */ + xri_cnt = phba->sli4_hba.els_xri_cnt - els_xri_cnt; + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3158 ELS xri-sgl count decreased from " + "%d to %d\n", phba->sli4_hba.els_xri_cnt, + els_xri_cnt); + spin_lock_irq(&phba->hbalock); + spin_lock(&phba->sli4_hba.sgl_list_lock); + list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, + &els_sgl_list); + /* release extra els sgls from list */ + for (i = 0; i < xri_cnt; i++) { + list_remove_head(&els_sgl_list, + sglq_entry, struct lpfc_sglq, list); + if (sglq_entry) { + __lpfc_mbuf_free(phba, sglq_entry->virt, + sglq_entry->phys); + kfree(sglq_entry); + } + } + list_splice_init(&els_sgl_list, + &phba->sli4_hba.lpfc_els_sgl_list); + spin_unlock(&phba->sli4_hba.sgl_list_lock); + spin_unlock_irq(&phba->hbalock); + } else + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3163 ELS xri-sgl count unchanged: %d\n", + els_xri_cnt); + phba->sli4_hba.els_xri_cnt = els_xri_cnt; + + /* update xris to els sgls on the list */ + sglq_entry = NULL; + sglq_entry_next = NULL; + list_for_each_entry_safe(sglq_entry, sglq_entry_next, + &phba->sli4_hba.lpfc_els_sgl_list, list) { + lxri = lpfc_sli4_next_xritag(phba); + if (lxri == NO_XRI) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2400 Failed to allocate xri for " + "ELS sgl\n"); + rc = -ENOMEM; + goto out_free_mem; + } + sglq_entry->sli4_lxritag = lxri; + sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; + } + return 0; + +out_free_mem: + lpfc_free_els_sgl_list(phba); + return rc; +} + +/** + * lpfc_sli4_nvmet_sgl_update - update xri-sgl sizing and mapping + * @phba: pointer to lpfc hba data structure. + * + * This routine first calculates the sizes of the current els and allocated + * scsi sgl lists, and then goes through all sgls to updates the physical + * XRIs assigned due to port function reset. During port initialization, the + * current els and allocated scsi sgl lists are 0s. + * + * Return codes + * 0 - successful (for now, it always returns 0) + **/ +int +lpfc_sli4_nvmet_sgl_update(struct lpfc_hba *phba) +{ + struct lpfc_sglq *sglq_entry = NULL, *sglq_entry_next = NULL; + uint16_t i, lxri, xri_cnt, els_xri_cnt; + uint16_t nvmet_xri_cnt; + LIST_HEAD(nvmet_sgl_list); + int rc; + + /* + * update on pci function's nvmet xri-sgl list + */ + els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); + + /* For NVMET, ALL remaining XRIs are dedicated for IO processing */ + nvmet_xri_cnt = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; + if (nvmet_xri_cnt > phba->sli4_hba.nvmet_xri_cnt) { + /* els xri-sgl expanded */ + xri_cnt = nvmet_xri_cnt - phba->sli4_hba.nvmet_xri_cnt; + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "6302 NVMET xri-sgl cnt grew from %d to %d\n", + phba->sli4_hba.nvmet_xri_cnt, nvmet_xri_cnt); + /* allocate the additional nvmet sgls */ + for (i = 0; i < xri_cnt; i++) { + sglq_entry = kzalloc(sizeof(struct lpfc_sglq), + GFP_KERNEL); + if (sglq_entry == NULL) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6303 Failure to allocate an " + "NVMET sgl entry:%d\n", i); + rc = -ENOMEM; + goto out_free_mem; + } + sglq_entry->buff_type = NVMET_BUFF_TYPE; + sglq_entry->virt = lpfc_nvmet_buf_alloc(phba, 0, + &sglq_entry->phys); + if (sglq_entry->virt == NULL) { + kfree(sglq_entry); + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6304 Failure to allocate an " + "NVMET buf:%d\n", i); + rc = -ENOMEM; + goto out_free_mem; + } + sglq_entry->sgl = sglq_entry->virt; + memset(sglq_entry->sgl, 0, + phba->cfg_sg_dma_buf_size); + sglq_entry->state = SGL_FREED; + list_add_tail(&sglq_entry->list, &nvmet_sgl_list); + } + spin_lock_irq(&phba->hbalock); + spin_lock(&phba->sli4_hba.sgl_list_lock); + list_splice_init(&nvmet_sgl_list, + &phba->sli4_hba.lpfc_nvmet_sgl_list); + spin_unlock(&phba->sli4_hba.sgl_list_lock); + spin_unlock_irq(&phba->hbalock); + } else if (nvmet_xri_cnt < phba->sli4_hba.nvmet_xri_cnt) { + /* nvmet xri-sgl shrunk */ + xri_cnt = phba->sli4_hba.nvmet_xri_cnt - nvmet_xri_cnt; + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "6305 NVMET xri-sgl count decreased from " + "%d to %d\n", phba->sli4_hba.nvmet_xri_cnt, + nvmet_xri_cnt); + spin_lock_irq(&phba->hbalock); + spin_lock(&phba->sli4_hba.sgl_list_lock); + list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, + &nvmet_sgl_list); + /* release extra nvmet sgls from list */ + for (i = 0; i < xri_cnt; i++) { + list_remove_head(&nvmet_sgl_list, + sglq_entry, struct lpfc_sglq, list); + if (sglq_entry) { + lpfc_nvmet_buf_free(phba, sglq_entry->virt, + sglq_entry->phys); + kfree(sglq_entry); + } + } + list_splice_init(&nvmet_sgl_list, + &phba->sli4_hba.lpfc_nvmet_sgl_list); + spin_unlock(&phba->sli4_hba.sgl_list_lock); + spin_unlock_irq(&phba->hbalock); + } else + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "6306 NVMET xri-sgl count unchanged: %d\n", + nvmet_xri_cnt); + phba->sli4_hba.nvmet_xri_cnt = nvmet_xri_cnt; + + /* update xris to nvmet sgls on the list */ + sglq_entry = NULL; + sglq_entry_next = NULL; + list_for_each_entry_safe(sglq_entry, sglq_entry_next, + &phba->sli4_hba.lpfc_nvmet_sgl_list, list) { + lxri = lpfc_sli4_next_xritag(phba); + if (lxri == NO_XRI) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6307 Failed to allocate xri for " + "NVMET sgl\n"); + rc = -ENOMEM; + goto out_free_mem; + } + sglq_entry->sli4_lxritag = lxri; + sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri]; + } + return 0; + +out_free_mem: + lpfc_free_nvmet_sgl_list(phba); + return rc; +} + +/** + * lpfc_sli4_scsi_sgl_update - update xri-sgl sizing and mapping + * @phba: pointer to lpfc hba data structure. + * + * This routine first calculates the sizes of the current els and allocated + * scsi sgl lists, and then goes through all sgls to updates the physical + * XRIs assigned due to port function reset. During port initialization, the + * current els and allocated scsi sgl lists are 0s. + * + * Return codes + * 0 - successful (for now, it always returns 0) + **/ +int +lpfc_sli4_scsi_sgl_update(struct lpfc_hba *phba) +{ + struct lpfc_scsi_buf *psb, *psb_next; + uint16_t i, lxri, els_xri_cnt, scsi_xri_cnt; + LIST_HEAD(scsi_sgl_list); + int rc; + + /* + * update on pci function's els xri-sgl list + */ + els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); + phba->total_scsi_bufs = 0; + + /* + * update on pci function's allocated scsi xri-sgl list + */ + /* maximum number of xris available for scsi buffers */ + phba->sli4_hba.scsi_xri_max = phba->sli4_hba.max_cfg_param.max_xri - + els_xri_cnt; + + if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) + return 0; + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) + phba->sli4_hba.scsi_xri_max = /* Split them up */ + (phba->sli4_hba.scsi_xri_max * + phba->cfg_xri_split) / 100; + + spin_lock_irq(&phba->scsi_buf_list_get_lock); + spin_lock(&phba->scsi_buf_list_put_lock); + list_splice_init(&phba->lpfc_scsi_buf_list_get, &scsi_sgl_list); + list_splice(&phba->lpfc_scsi_buf_list_put, &scsi_sgl_list); + spin_unlock(&phba->scsi_buf_list_put_lock); + spin_unlock_irq(&phba->scsi_buf_list_get_lock); + + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "6060 Current allocated SCSI xri-sgl count:%d, " + "maximum SCSI xri count:%d (split:%d)\n", + phba->sli4_hba.scsi_xri_cnt, + phba->sli4_hba.scsi_xri_max, phba->cfg_xri_split); + + if (phba->sli4_hba.scsi_xri_cnt > phba->sli4_hba.scsi_xri_max) { + /* max scsi xri shrinked below the allocated scsi buffers */ + scsi_xri_cnt = phba->sli4_hba.scsi_xri_cnt - + phba->sli4_hba.scsi_xri_max; + /* release the extra allocated scsi buffers */ + for (i = 0; i < scsi_xri_cnt; i++) { + list_remove_head(&scsi_sgl_list, psb, + struct lpfc_scsi_buf, list); + if (psb) { + dma_pool_free(phba->lpfc_sg_dma_buf_pool, + psb->data, psb->dma_handle); + kfree(psb); + } + } + spin_lock_irq(&phba->scsi_buf_list_get_lock); + phba->sli4_hba.scsi_xri_cnt -= scsi_xri_cnt; + spin_unlock_irq(&phba->scsi_buf_list_get_lock); + } + + /* update xris associated to remaining allocated scsi buffers */ + psb = NULL; + psb_next = NULL; + list_for_each_entry_safe(psb, psb_next, &scsi_sgl_list, list) { + lxri = lpfc_sli4_next_xritag(phba); + if (lxri == NO_XRI) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2560 Failed to allocate xri for " + "scsi buffer\n"); + rc = -ENOMEM; + goto out_free_mem; + } + psb->cur_iocbq.sli4_lxritag = lxri; + psb->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; + } + spin_lock_irq(&phba->scsi_buf_list_get_lock); + spin_lock(&phba->scsi_buf_list_put_lock); + list_splice_init(&scsi_sgl_list, &phba->lpfc_scsi_buf_list_get); + INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); + spin_unlock(&phba->scsi_buf_list_put_lock); + spin_unlock_irq(&phba->scsi_buf_list_get_lock); + return 0; + +out_free_mem: + lpfc_scsi_free(phba); + return rc; +} + +static uint64_t +lpfc_get_wwpn(struct lpfc_hba *phba) +{ + uint64_t wwn; + int rc; + LPFC_MBOXQ_t *mboxq; + MAILBOX_t *mb; + + mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, + GFP_KERNEL); + if (!mboxq) + return (uint64_t)-1; + + /* First get WWN of HBA instance */ + lpfc_read_nv(phba, mboxq); + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6019 Mailbox failed , mbxCmd x%x " + "READ_NV, mbxStatus x%x\n", + bf_get(lpfc_mqe_command, &mboxq->u.mqe), + bf_get(lpfc_mqe_status, &mboxq->u.mqe)); + mempool_free(mboxq, phba->mbox_mem_pool); + return (uint64_t) -1; + } + mb = &mboxq->u.mb; + memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); + /* wwn is WWPN of HBA instance */ + mempool_free(mboxq, phba->mbox_mem_pool); + if (phba->sli_rev == LPFC_SLI_REV4) + return be64_to_cpu(wwn); + else + return rol64(wwn, 32); +} + +/** + * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping + * @phba: pointer to lpfc hba data structure. + * + * This routine first calculates the sizes of the current els and allocated + * scsi sgl lists, and then goes through all sgls to updates the physical + * XRIs assigned due to port function reset. During port initialization, the + * current els and allocated scsi sgl lists are 0s. + * + * Return codes + * 0 - successful (for now, it always returns 0) + **/ +int +lpfc_sli4_nvme_sgl_update(struct lpfc_hba *phba) +{ + struct lpfc_nvme_buf *lpfc_ncmd = NULL, *lpfc_ncmd_next = NULL; + uint16_t i, lxri, els_xri_cnt; + uint16_t nvme_xri_cnt, nvme_xri_max; + LIST_HEAD(nvme_sgl_list); + int rc, cnt; + + phba->total_nvme_bufs = 0; + phba->get_nvme_bufs = 0; + phba->put_nvme_bufs = 0; + + if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) + return 0; + /* + * update on pci function's allocated nvme xri-sgl list + */ + + /* maximum number of xris available for nvme buffers */ + els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba); + nvme_xri_max = phba->sli4_hba.max_cfg_param.max_xri - els_xri_cnt; + phba->sli4_hba.nvme_xri_max = nvme_xri_max; + phba->sli4_hba.nvme_xri_max -= phba->sli4_hba.scsi_xri_max; + + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "6074 Current allocated NVME xri-sgl count:%d, " + "maximum NVME xri count:%d\n", + phba->sli4_hba.nvme_xri_cnt, + phba->sli4_hba.nvme_xri_max); + + spin_lock_irq(&phba->nvme_buf_list_get_lock); + spin_lock(&phba->nvme_buf_list_put_lock); + list_splice_init(&phba->lpfc_nvme_buf_list_get, &nvme_sgl_list); + list_splice(&phba->lpfc_nvme_buf_list_put, &nvme_sgl_list); + cnt = phba->get_nvme_bufs + phba->put_nvme_bufs; + phba->get_nvme_bufs = 0; + phba->put_nvme_bufs = 0; + spin_unlock(&phba->nvme_buf_list_put_lock); + spin_unlock_irq(&phba->nvme_buf_list_get_lock); + + if (phba->sli4_hba.nvme_xri_cnt > phba->sli4_hba.nvme_xri_max) { + /* max nvme xri shrunk below the allocated nvme buffers */ + spin_lock_irq(&phba->nvme_buf_list_get_lock); + nvme_xri_cnt = phba->sli4_hba.nvme_xri_cnt - + phba->sli4_hba.nvme_xri_max; + spin_unlock_irq(&phba->nvme_buf_list_get_lock); + /* release the extra allocated nvme buffers */ + for (i = 0; i < nvme_xri_cnt; i++) { + list_remove_head(&nvme_sgl_list, lpfc_ncmd, + struct lpfc_nvme_buf, list); + if (lpfc_ncmd) { + dma_pool_free(phba->lpfc_sg_dma_buf_pool, + lpfc_ncmd->data, + lpfc_ncmd->dma_handle); + kfree(lpfc_ncmd); + } + } + spin_lock_irq(&phba->nvme_buf_list_get_lock); + phba->sli4_hba.nvme_xri_cnt -= nvme_xri_cnt; + spin_unlock_irq(&phba->nvme_buf_list_get_lock); + } + + /* update xris associated to remaining allocated nvme buffers */ + lpfc_ncmd = NULL; + lpfc_ncmd_next = NULL; + list_for_each_entry_safe(lpfc_ncmd, lpfc_ncmd_next, + &nvme_sgl_list, list) { + lxri = lpfc_sli4_next_xritag(phba); + if (lxri == NO_XRI) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6075 Failed to allocate xri for " + "nvme buffer\n"); + rc = -ENOMEM; + goto out_free_mem; + } + lpfc_ncmd->cur_iocbq.sli4_lxritag = lxri; + lpfc_ncmd->cur_iocbq.sli4_xritag = phba->sli4_hba.xri_ids[lxri]; + } + spin_lock_irq(&phba->nvme_buf_list_get_lock); + spin_lock(&phba->nvme_buf_list_put_lock); + list_splice_init(&nvme_sgl_list, &phba->lpfc_nvme_buf_list_get); + phba->get_nvme_bufs = cnt; + INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); + spin_unlock(&phba->nvme_buf_list_put_lock); + spin_unlock_irq(&phba->nvme_buf_list_get_lock); + return 0; + +out_free_mem: + lpfc_nvme_free(phba); + return rc; +} + +/** + * lpfc_create_port - Create an FC port + * @phba: pointer to lpfc hba data structure. + * @instance: a unique integer ID to this FC port. + * @dev: pointer to the device data structure. + * + * This routine creates a FC port for the upper layer protocol. The FC port + * can be created on top of either a physical port or a virtual port provided + * by the HBA. This routine also allocates a SCSI host data structure (shost) + * and associates the FC port created before adding the shost into the SCSI + * layer. + * + * Return codes + * @vport - pointer to the virtual N_Port data structure. + * NULL - port create failed. + **/ +struct lpfc_vport * +lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) +{ + struct lpfc_vport *vport; + struct Scsi_Host *shost = NULL; + int error = 0; + int i; + uint64_t wwn; + bool use_no_reset_hba = false; + int rc; + + if (lpfc_no_hba_reset_cnt) { + if (phba->sli_rev < LPFC_SLI_REV4 && + dev == &phba->pcidev->dev) { + /* Reset the port first */ + lpfc_sli_brdrestart(phba); + rc = lpfc_sli_chipset_init(phba); + if (rc) + return NULL; + } + wwn = lpfc_get_wwpn(phba); + } + + for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { + if (wwn == lpfc_no_hba_reset[i]) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6020 Setting use_no_reset port=%llx\n", + wwn); + use_no_reset_hba = true; + break; + } + } + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { + if (dev != &phba->pcidev->dev) { + shost = scsi_host_alloc(&lpfc_vport_template, + sizeof(struct lpfc_vport)); + } else { + if (!use_no_reset_hba) + shost = scsi_host_alloc(&lpfc_template, + sizeof(struct lpfc_vport)); + else + shost = scsi_host_alloc(&lpfc_template_no_hr, + sizeof(struct lpfc_vport)); + } + } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + shost = scsi_host_alloc(&lpfc_template_nvme, + sizeof(struct lpfc_vport)); + } + if (!shost) + goto out; + + vport = (struct lpfc_vport *) shost->hostdata; + vport->phba = phba; + vport->load_flag |= FC_LOADING; + vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; + vport->fc_rscn_flush = 0; + lpfc_get_vport_cfgparam(vport); + + shost->unique_id = instance; + shost->max_id = LPFC_MAX_TARGET; + shost->max_lun = vport->cfg_max_luns; + shost->this_id = -1; + shost->max_cmd_len = 16; + shost->nr_hw_queues = phba->cfg_fcp_io_channel; + if (phba->sli_rev == LPFC_SLI_REV4) { + shost->dma_boundary = + phba->sli4_hba.pc_sli4_params.sge_supp_len-1; + shost->sg_tablesize = phba->cfg_sg_seg_cnt; + } + + /* + * Set initial can_queue value since 0 is no longer supported and + * scsi_add_host will fail. This will be adjusted later based on the + * max xri value determined in hba setup. + */ + shost->can_queue = phba->cfg_hba_queue_depth - 10; + if (dev != &phba->pcidev->dev) { + shost->transportt = lpfc_vport_transport_template; + vport->port_type = LPFC_NPIV_PORT; + } else { + shost->transportt = lpfc_transport_template; + vport->port_type = LPFC_PHYSICAL_PORT; + } + + /* Initialize all internally managed lists. */ + INIT_LIST_HEAD(&vport->fc_nodes); + INIT_LIST_HEAD(&vport->rcv_buffer_list); + spin_lock_init(&vport->work_port_lock); + + timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0); + + timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0); + + timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0); + + error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); + if (error) + goto out_put_shost; + + spin_lock_irq(&phba->hbalock); + list_add_tail(&vport->listentry, &phba->port_list); + spin_unlock_irq(&phba->hbalock); + return vport; + +out_put_shost: + scsi_host_put(shost); +out: + return NULL; +} + +/** + * destroy_port - destroy an FC port + * @vport: pointer to an lpfc virtual N_Port data structure. + * + * This routine destroys a FC port from the upper layer protocol. All the + * resources associated with the port are released. + **/ +void +destroy_port(struct lpfc_vport *vport) +{ + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + struct lpfc_hba *phba = vport->phba; + + lpfc_debugfs_terminate(vport); + fc_remove_host(shost); + scsi_remove_host(shost); + + spin_lock_irq(&phba->hbalock); + list_del_init(&vport->listentry); + spin_unlock_irq(&phba->hbalock); + + lpfc_cleanup(vport); + return; +} + +/** + * lpfc_get_instance - Get a unique integer ID + * + * This routine allocates a unique integer ID from lpfc_hba_index pool. It + * uses the kernel idr facility to perform the task. + * + * Return codes: + * instance - a unique integer ID allocated as the new instance. + * -1 - lpfc get instance failed. + **/ +int +lpfc_get_instance(void) +{ + int ret; + + ret = idr_alloc(&lpfc_hba_index, NULL, 0, 0, GFP_KERNEL); + return ret < 0 ? -1 : ret; +} + +/** + * lpfc_scan_finished - method for SCSI layer to detect whether scan is done + * @shost: pointer to SCSI host data structure. + * @time: elapsed time of the scan in jiffies. + * + * This routine is called by the SCSI layer with a SCSI host to determine + * whether the scan host is finished. + * + * Note: there is no scan_start function as adapter initialization will have + * asynchronously kicked off the link initialization. + * + * Return codes + * 0 - SCSI host scan is not over yet. + * 1 - SCSI host scan is over. + **/ +int lpfc_scan_finished(struct Scsi_Host *shost, unsigned long time) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int stat = 0; + + spin_lock_irq(shost->host_lock); + + if (vport->load_flag & FC_UNLOADING) { + stat = 1; + goto finished; + } + if (time >= msecs_to_jiffies(30 * 1000)) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0461 Scanning longer than 30 " + "seconds. Continuing initialization\n"); + stat = 1; + goto finished; + } + if (time >= msecs_to_jiffies(15 * 1000) && + phba->link_state <= LPFC_LINK_DOWN) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0465 Link down longer than 15 " + "seconds. Continuing initialization\n"); + stat = 1; + goto finished; + } + + if (vport->port_state != LPFC_VPORT_READY) + goto finished; + if (vport->num_disc_nodes || vport->fc_prli_sent) + goto finished; + if (vport->fc_map_cnt == 0 && time < msecs_to_jiffies(2 * 1000)) + goto finished; + if ((phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) != 0) + goto finished; + + stat = 1; + +finished: + spin_unlock_irq(shost->host_lock); + return stat; +} + +/** + * lpfc_host_attrib_init - Initialize SCSI host attributes on a FC port + * @shost: pointer to SCSI host data structure. + * + * This routine initializes a given SCSI host attributes on a FC port. The + * SCSI host can be either on top of a physical port or a virtual port. + **/ +void lpfc_host_attrib_init(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + /* + * Set fixed host attributes. Must done after lpfc_sli_hba_setup(). + */ + + fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn); + fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn); + fc_host_supported_classes(shost) = FC_COS_CLASS3; + + memset(fc_host_supported_fc4s(shost), 0, + sizeof(fc_host_supported_fc4s(shost))); + fc_host_supported_fc4s(shost)[2] = 1; + fc_host_supported_fc4s(shost)[7] = 1; + + lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), + sizeof fc_host_symbolic_name(shost)); + + fc_host_supported_speeds(shost) = 0; + if (phba->lmt & LMT_64Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_64GBIT; + if (phba->lmt & LMT_32Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_32GBIT; + if (phba->lmt & LMT_16Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_16GBIT; + if (phba->lmt & LMT_10Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_10GBIT; + if (phba->lmt & LMT_8Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_8GBIT; + if (phba->lmt & LMT_4Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_4GBIT; + if (phba->lmt & LMT_2Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_2GBIT; + if (phba->lmt & LMT_1Gb) + fc_host_supported_speeds(shost) |= FC_PORTSPEED_1GBIT; + + fc_host_maxframe_size(shost) = + (((uint32_t) vport->fc_sparam.cmn.bbRcvSizeMsb & 0x0F) << 8) | + (uint32_t) vport->fc_sparam.cmn.bbRcvSizeLsb; + + fc_host_dev_loss_tmo(shost) = vport->cfg_devloss_tmo; + + /* This value is also unchanging */ + memset(fc_host_active_fc4s(shost), 0, + sizeof(fc_host_active_fc4s(shost))); + fc_host_active_fc4s(shost)[2] = 1; + fc_host_active_fc4s(shost)[7] = 1; + + fc_host_max_npiv_vports(shost) = phba->max_vpi; + spin_lock_irq(shost->host_lock); + vport->load_flag &= ~FC_LOADING; + spin_unlock_irq(shost->host_lock); +} + +/** + * lpfc_stop_port_s3 - Stop SLI3 device port + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to stop an SLI3 device port, it stops the device + * from generating interrupts and stops the device driver's timers for the + * device. + **/ +static void +lpfc_stop_port_s3(struct lpfc_hba *phba) +{ + /* Clear all interrupt enable conditions */ + writel(0, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + /* Clear all pending interrupts */ + writel(0xffffffff, phba->HAregaddr); + readl(phba->HAregaddr); /* flush */ + + /* Reset some HBA SLI setup states */ + lpfc_stop_hba_timers(phba); + phba->pport->work_port_events = 0; +} + +/** + * lpfc_stop_port_s4 - Stop SLI4 device port + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to stop an SLI4 device port, it stops the device + * from generating interrupts and stops the device driver's timers for the + * device. + **/ +static void +lpfc_stop_port_s4(struct lpfc_hba *phba) +{ + /* Reset some HBA SLI4 setup states */ + lpfc_stop_hba_timers(phba); + phba->pport->work_port_events = 0; + phba->sli4_hba.intr_enable = 0; +} + +/** + * lpfc_stop_port - Wrapper function for stopping hba port + * @phba: Pointer to HBA context object. + * + * This routine wraps the actual SLI3 or SLI4 hba stop port routine from + * the API jump table function pointer from the lpfc_hba struct. + **/ +void +lpfc_stop_port(struct lpfc_hba *phba) +{ + phba->lpfc_stop_port(phba); + + if (phba->wq) + flush_workqueue(phba->wq); +} + +/** + * lpfc_fcf_redisc_wait_start_timer - Start fcf rediscover wait timer + * @phba: Pointer to hba for which this call is being executed. + * + * This routine starts the timer waiting for the FCF rediscovery to complete. + **/ +void +lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba) +{ + unsigned long fcf_redisc_wait_tmo = + (jiffies + msecs_to_jiffies(LPFC_FCF_REDISCOVER_WAIT_TMO)); + /* Start fcf rediscovery wait period timer */ + mod_timer(&phba->fcf.redisc_wait, fcf_redisc_wait_tmo); + spin_lock_irq(&phba->hbalock); + /* Allow action to new fcf asynchronous event */ + phba->fcf.fcf_flag &= ~(FCF_AVAILABLE | FCF_SCAN_DONE); + /* Mark the FCF rediscovery pending state */ + phba->fcf.fcf_flag |= FCF_REDISC_PEND; + spin_unlock_irq(&phba->hbalock); +} + +/** + * lpfc_sli4_fcf_redisc_wait_tmo - FCF table rediscover wait timeout + * @ptr: Map to lpfc_hba data structure pointer. + * + * This routine is invoked when waiting for FCF table rediscover has been + * timed out. If new FCF record(s) has (have) been discovered during the + * wait period, a new FCF event shall be added to the FCOE async event + * list, and then worker thread shall be waked up for processing from the + * worker thread context. + **/ +static void +lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t) +{ + struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait); + + /* Don't send FCF rediscovery event if timer cancelled */ + spin_lock_irq(&phba->hbalock); + if (!(phba->fcf.fcf_flag & FCF_REDISC_PEND)) { + spin_unlock_irq(&phba->hbalock); + return; + } + /* Clear FCF rediscovery timer pending flag */ + phba->fcf.fcf_flag &= ~FCF_REDISC_PEND; + /* FCF rediscovery event to worker thread */ + phba->fcf.fcf_flag |= FCF_REDISC_EVT; + spin_unlock_irq(&phba->hbalock); + lpfc_printf_log(phba, KERN_INFO, LOG_FIP, + "2776 FCF rediscover quiescent timer expired\n"); + /* wake up worker thread */ + lpfc_worker_wake_up(phba); +} + +/** + * lpfc_sli4_parse_latt_fault - Parse sli4 link-attention link fault code + * @phba: pointer to lpfc hba data structure. + * @acqe_link: pointer to the async link completion queue entry. + * + * This routine is to parse the SLI4 link-attention link fault code. + **/ +static void +lpfc_sli4_parse_latt_fault(struct lpfc_hba *phba, + struct lpfc_acqe_link *acqe_link) +{ + switch (bf_get(lpfc_acqe_link_fault, acqe_link)) { + case LPFC_ASYNC_LINK_FAULT_NONE: + case LPFC_ASYNC_LINK_FAULT_LOCAL: + case LPFC_ASYNC_LINK_FAULT_REMOTE: + case LPFC_ASYNC_LINK_FAULT_LR_LRR: + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0398 Unknown link fault code: x%x\n", + bf_get(lpfc_acqe_link_fault, acqe_link)); + break; + } +} + +/** + * lpfc_sli4_parse_latt_type - Parse sli4 link attention type + * @phba: pointer to lpfc hba data structure. + * @acqe_link: pointer to the async link completion queue entry. + * + * This routine is to parse the SLI4 link attention type and translate it + * into the base driver's link attention type coding. + * + * Return: Link attention type in terms of base driver's coding. + **/ +static uint8_t +lpfc_sli4_parse_latt_type(struct lpfc_hba *phba, + struct lpfc_acqe_link *acqe_link) +{ + uint8_t att_type; + + switch (bf_get(lpfc_acqe_link_status, acqe_link)) { + case LPFC_ASYNC_LINK_STATUS_DOWN: + case LPFC_ASYNC_LINK_STATUS_LOGICAL_DOWN: + att_type = LPFC_ATT_LINK_DOWN; + break; + case LPFC_ASYNC_LINK_STATUS_UP: + /* Ignore physical link up events - wait for logical link up */ + att_type = LPFC_ATT_RESERVED; + break; + case LPFC_ASYNC_LINK_STATUS_LOGICAL_UP: + att_type = LPFC_ATT_LINK_UP; + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0399 Invalid link attention type: x%x\n", + bf_get(lpfc_acqe_link_status, acqe_link)); + att_type = LPFC_ATT_RESERVED; + break; + } + return att_type; +} + +/** + * lpfc_sli_port_speed_get - Get sli3 link speed code to link speed + * @phba: pointer to lpfc hba data structure. + * + * This routine is to get an SLI3 FC port's link speed in Mbps. + * + * Return: link speed in terms of Mbps. + **/ +uint32_t +lpfc_sli_port_speed_get(struct lpfc_hba *phba) +{ + uint32_t link_speed; + + if (!lpfc_is_link_up(phba)) + return 0; + + if (phba->sli_rev <= LPFC_SLI_REV3) { + switch (phba->fc_linkspeed) { + case LPFC_LINK_SPEED_1GHZ: + link_speed = 1000; + break; + case LPFC_LINK_SPEED_2GHZ: + link_speed = 2000; + break; + case LPFC_LINK_SPEED_4GHZ: + link_speed = 4000; + break; + case LPFC_LINK_SPEED_8GHZ: + link_speed = 8000; + break; + case LPFC_LINK_SPEED_10GHZ: + link_speed = 10000; + break; + case LPFC_LINK_SPEED_16GHZ: + link_speed = 16000; + break; + default: + link_speed = 0; + } + } else { + if (phba->sli4_hba.link_state.logical_speed) + link_speed = + phba->sli4_hba.link_state.logical_speed; + else + link_speed = phba->sli4_hba.link_state.speed; + } + return link_speed; +} + +/** + * lpfc_sli4_port_speed_parse - Parse async evt link speed code to link speed + * @phba: pointer to lpfc hba data structure. + * @evt_code: asynchronous event code. + * @speed_code: asynchronous event link speed code. + * + * This routine is to parse the giving SLI4 async event link speed code into + * value of Mbps for the link speed. + * + * Return: link speed in terms of Mbps. + **/ +static uint32_t +lpfc_sli4_port_speed_parse(struct lpfc_hba *phba, uint32_t evt_code, + uint8_t speed_code) +{ + uint32_t port_speed; + + switch (evt_code) { + case LPFC_TRAILER_CODE_LINK: + switch (speed_code) { + case LPFC_ASYNC_LINK_SPEED_ZERO: + port_speed = 0; + break; + case LPFC_ASYNC_LINK_SPEED_10MBPS: + port_speed = 10; + break; + case LPFC_ASYNC_LINK_SPEED_100MBPS: + port_speed = 100; + break; + case LPFC_ASYNC_LINK_SPEED_1GBPS: + port_speed = 1000; + break; + case LPFC_ASYNC_LINK_SPEED_10GBPS: + port_speed = 10000; + break; + case LPFC_ASYNC_LINK_SPEED_20GBPS: + port_speed = 20000; + break; + case LPFC_ASYNC_LINK_SPEED_25GBPS: + port_speed = 25000; + break; + case LPFC_ASYNC_LINK_SPEED_40GBPS: + port_speed = 40000; + break; + default: + port_speed = 0; + } + break; + case LPFC_TRAILER_CODE_FC: + switch (speed_code) { + case LPFC_FC_LA_SPEED_UNKNOWN: + port_speed = 0; + break; + case LPFC_FC_LA_SPEED_1G: + port_speed = 1000; + break; + case LPFC_FC_LA_SPEED_2G: + port_speed = 2000; + break; + case LPFC_FC_LA_SPEED_4G: + port_speed = 4000; + break; + case LPFC_FC_LA_SPEED_8G: + port_speed = 8000; + break; + case LPFC_FC_LA_SPEED_10G: + port_speed = 10000; + break; + case LPFC_FC_LA_SPEED_16G: + port_speed = 16000; + break; + case LPFC_FC_LA_SPEED_32G: + port_speed = 32000; + break; + case LPFC_FC_LA_SPEED_64G: + port_speed = 64000; + break; + default: + port_speed = 0; + } + break; + default: + port_speed = 0; + } + return port_speed; +} + +/** + * lpfc_sli4_async_link_evt - Process the asynchronous FCoE link event + * @phba: pointer to lpfc hba data structure. + * @acqe_link: pointer to the async link completion queue entry. + * + * This routine is to handle the SLI4 asynchronous FCoE link event. + **/ +static void +lpfc_sli4_async_link_evt(struct lpfc_hba *phba, + struct lpfc_acqe_link *acqe_link) +{ + struct lpfc_dmabuf *mp; + LPFC_MBOXQ_t *pmb; + MAILBOX_t *mb; + struct lpfc_mbx_read_top *la; + uint8_t att_type; + int rc; + + att_type = lpfc_sli4_parse_latt_type(phba, acqe_link); + if (att_type != LPFC_ATT_LINK_DOWN && att_type != LPFC_ATT_LINK_UP) + return; + phba->fcoe_eventtag = acqe_link->event_tag; + pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0395 The mboxq allocation failed\n"); + return; + } + mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); + if (!mp) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0396 The lpfc_dmabuf allocation failed\n"); + goto out_free_pmb; + } + mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); + if (!mp->virt) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0397 The mbuf allocation failed\n"); + goto out_free_dmabuf; + } + + /* Cleanup any outstanding ELS commands */ + lpfc_els_flush_all_cmd(phba); + + /* Block ELS IOCBs until we have done process link event */ + phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; + + /* Update link event statistics */ + phba->sli.slistat.link_event++; + + /* Create lpfc_handle_latt mailbox command from link ACQE */ + lpfc_read_topology(phba, pmb, mp); + pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; + pmb->vport = phba->pport; + + /* Keep the link status for extra SLI4 state machine reference */ + phba->sli4_hba.link_state.speed = + lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_LINK, + bf_get(lpfc_acqe_link_speed, acqe_link)); + phba->sli4_hba.link_state.duplex = + bf_get(lpfc_acqe_link_duplex, acqe_link); + phba->sli4_hba.link_state.status = + bf_get(lpfc_acqe_link_status, acqe_link); + phba->sli4_hba.link_state.type = + bf_get(lpfc_acqe_link_type, acqe_link); + phba->sli4_hba.link_state.number = + bf_get(lpfc_acqe_link_number, acqe_link); + phba->sli4_hba.link_state.fault = + bf_get(lpfc_acqe_link_fault, acqe_link); + phba->sli4_hba.link_state.logical_speed = + bf_get(lpfc_acqe_logical_link_speed, acqe_link) * 10; + + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "2900 Async FC/FCoE Link event - Speed:%dGBit " + "duplex:x%x LA Type:x%x Port Type:%d Port Number:%d " + "Logical speed:%dMbps Fault:%d\n", + phba->sli4_hba.link_state.speed, + phba->sli4_hba.link_state.topology, + phba->sli4_hba.link_state.status, + phba->sli4_hba.link_state.type, + phba->sli4_hba.link_state.number, + phba->sli4_hba.link_state.logical_speed, + phba->sli4_hba.link_state.fault); + /* + * For FC Mode: issue the READ_TOPOLOGY mailbox command to fetch + * topology info. Note: Optional for non FC-AL ports. + */ + if (!(phba->hba_flag & HBA_FCOE_MODE)) { + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) + goto out_free_dmabuf; + return; + } + /* + * For FCoE Mode: fill in all the topology information we need and call + * the READ_TOPOLOGY completion routine to continue without actually + * sending the READ_TOPOLOGY mailbox command to the port. + */ + /* Initialize completion status */ + mb = &pmb->u.mb; + mb->mbxStatus = MBX_SUCCESS; + + /* Parse port fault information field */ + lpfc_sli4_parse_latt_fault(phba, acqe_link); + + /* Parse and translate link attention fields */ + la = (struct lpfc_mbx_read_top *) &pmb->u.mb.un.varReadTop; + la->eventTag = acqe_link->event_tag; + bf_set(lpfc_mbx_read_top_att_type, la, att_type); + bf_set(lpfc_mbx_read_top_link_spd, la, + (bf_get(lpfc_acqe_link_speed, acqe_link))); + + /* Fake the the following irrelvant fields */ + bf_set(lpfc_mbx_read_top_topology, la, LPFC_TOPOLOGY_PT_PT); + bf_set(lpfc_mbx_read_top_alpa_granted, la, 0); + bf_set(lpfc_mbx_read_top_il, la, 0); + bf_set(lpfc_mbx_read_top_pb, la, 0); + bf_set(lpfc_mbx_read_top_fa, la, 0); + bf_set(lpfc_mbx_read_top_mm, la, 0); + + /* Invoke the lpfc_handle_latt mailbox command callback function */ + lpfc_mbx_cmpl_read_topology(phba, pmb); + + return; + +out_free_dmabuf: + kfree(mp); +out_free_pmb: + mempool_free(pmb, phba->mbox_mem_pool); +} + +/** + * lpfc_sli4_async_fc_evt - Process the asynchronous FC link event + * @phba: pointer to lpfc hba data structure. + * @acqe_fc: pointer to the async fc completion queue entry. + * + * This routine is to handle the SLI4 asynchronous FC event. It will simply log + * that the event was received and then issue a read_topology mailbox command so + * that the rest of the driver will treat it the same as SLI3. + **/ +static void +lpfc_sli4_async_fc_evt(struct lpfc_hba *phba, struct lpfc_acqe_fc_la *acqe_fc) +{ + struct lpfc_dmabuf *mp; + LPFC_MBOXQ_t *pmb; + MAILBOX_t *mb; + struct lpfc_mbx_read_top *la; + int rc; + + if (bf_get(lpfc_trailer_type, acqe_fc) != + LPFC_FC_LA_EVENT_TYPE_FC_LINK) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2895 Non FC link Event detected.(%d)\n", + bf_get(lpfc_trailer_type, acqe_fc)); + return; + } + /* Keep the link status for extra SLI4 state machine reference */ + phba->sli4_hba.link_state.speed = + lpfc_sli4_port_speed_parse(phba, LPFC_TRAILER_CODE_FC, + bf_get(lpfc_acqe_fc_la_speed, acqe_fc)); + phba->sli4_hba.link_state.duplex = LPFC_ASYNC_LINK_DUPLEX_FULL; + phba->sli4_hba.link_state.topology = + bf_get(lpfc_acqe_fc_la_topology, acqe_fc); + phba->sli4_hba.link_state.status = + bf_get(lpfc_acqe_fc_la_att_type, acqe_fc); + phba->sli4_hba.link_state.type = + bf_get(lpfc_acqe_fc_la_port_type, acqe_fc); + phba->sli4_hba.link_state.number = + bf_get(lpfc_acqe_fc_la_port_number, acqe_fc); + phba->sli4_hba.link_state.fault = + bf_get(lpfc_acqe_link_fault, acqe_fc); + phba->sli4_hba.link_state.logical_speed = + bf_get(lpfc_acqe_fc_la_llink_spd, acqe_fc) * 10; + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "2896 Async FC event - Speed:%dGBaud Topology:x%x " + "LA Type:x%x Port Type:%d Port Number:%d Logical speed:" + "%dMbps Fault:%d\n", + phba->sli4_hba.link_state.speed, + phba->sli4_hba.link_state.topology, + phba->sli4_hba.link_state.status, + phba->sli4_hba.link_state.type, + phba->sli4_hba.link_state.number, + phba->sli4_hba.link_state.logical_speed, + phba->sli4_hba.link_state.fault); + pmb = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2897 The mboxq allocation failed\n"); + return; + } + mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); + if (!mp) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2898 The lpfc_dmabuf allocation failed\n"); + goto out_free_pmb; + } + mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys); + if (!mp->virt) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2899 The mbuf allocation failed\n"); + goto out_free_dmabuf; + } + + /* Cleanup any outstanding ELS commands */ + lpfc_els_flush_all_cmd(phba); + + /* Block ELS IOCBs until we have done process link event */ + phba->sli4_hba.els_wq->pring->flag |= LPFC_STOP_IOCB_EVENT; + + /* Update link event statistics */ + phba->sli.slistat.link_event++; + + /* Create lpfc_handle_latt mailbox command from link ACQE */ + lpfc_read_topology(phba, pmb, mp); + pmb->mbox_cmpl = lpfc_mbx_cmpl_read_topology; + pmb->vport = phba->pport; + + if (phba->sli4_hba.link_state.status != LPFC_FC_LA_TYPE_LINK_UP) { + phba->link_flag &= ~(LS_MDS_LINK_DOWN | LS_MDS_LOOPBACK); + + switch (phba->sli4_hba.link_state.status) { + case LPFC_FC_LA_TYPE_MDS_LINK_DOWN: + phba->link_flag |= LS_MDS_LINK_DOWN; + break; + case LPFC_FC_LA_TYPE_MDS_LOOPBACK: + phba->link_flag |= LS_MDS_LOOPBACK; + break; + default: + break; + } + + /* Initialize completion status */ + mb = &pmb->u.mb; + mb->mbxStatus = MBX_SUCCESS; + + /* Parse port fault information field */ + lpfc_sli4_parse_latt_fault(phba, (void *)acqe_fc); + + /* Parse and translate link attention fields */ + la = (struct lpfc_mbx_read_top *)&pmb->u.mb.un.varReadTop; + la->eventTag = acqe_fc->event_tag; + + if (phba->sli4_hba.link_state.status == + LPFC_FC_LA_TYPE_UNEXP_WWPN) { + bf_set(lpfc_mbx_read_top_att_type, la, + LPFC_FC_LA_TYPE_UNEXP_WWPN); + } else { + bf_set(lpfc_mbx_read_top_att_type, la, + LPFC_FC_LA_TYPE_LINK_DOWN); + } + /* Invoke the mailbox command callback function */ + lpfc_mbx_cmpl_read_topology(phba, pmb); + + return; + } + + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); + if (rc == MBX_NOT_FINISHED) + goto out_free_dmabuf; + return; + +out_free_dmabuf: + kfree(mp); +out_free_pmb: + mempool_free(pmb, phba->mbox_mem_pool); +} + +/** + * lpfc_sli4_async_sli_evt - Process the asynchronous SLI link event + * @phba: pointer to lpfc hba data structure. + * @acqe_fc: pointer to the async SLI completion queue entry. + * + * This routine is to handle the SLI4 asynchronous SLI events. + **/ +static void +lpfc_sli4_async_sli_evt(struct lpfc_hba *phba, struct lpfc_acqe_sli *acqe_sli) +{ + char port_name; + char message[128]; + uint8_t status; + uint8_t evt_type; + uint8_t operational = 0; + struct temp_event temp_event_data; + struct lpfc_acqe_misconfigured_event *misconfigured; + struct Scsi_Host *shost; + + evt_type = bf_get(lpfc_trailer_type, acqe_sli); + + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "2901 Async SLI event - Event Data1:x%08x Event Data2:" + "x%08x SLI Event Type:%d\n", + acqe_sli->event_data1, acqe_sli->event_data2, + evt_type); + + port_name = phba->Port[0]; + if (port_name == 0x00) + port_name = '?'; /* get port name is empty */ + + switch (evt_type) { + case LPFC_SLI_EVENT_TYPE_OVER_TEMP: + temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; + temp_event_data.event_code = LPFC_THRESHOLD_TEMP; + temp_event_data.data = (uint32_t)acqe_sli->event_data1; + + lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, + "3190 Over Temperature:%d Celsius- Port Name %c\n", + acqe_sli->event_data1, port_name); + + phba->sfp_warning |= LPFC_TRANSGRESSION_HIGH_TEMPERATURE; + shost = lpfc_shost_from_vport(phba->pport); + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(temp_event_data), + (char *)&temp_event_data, + SCSI_NL_VID_TYPE_PCI + | PCI_VENDOR_ID_EMULEX); + break; + case LPFC_SLI_EVENT_TYPE_NORM_TEMP: + temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT; + temp_event_data.event_code = LPFC_NORMAL_TEMP; + temp_event_data.data = (uint32_t)acqe_sli->event_data1; + + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3191 Normal Temperature:%d Celsius - Port Name %c\n", + acqe_sli->event_data1, port_name); + + shost = lpfc_shost_from_vport(phba->pport); + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(temp_event_data), + (char *)&temp_event_data, + SCSI_NL_VID_TYPE_PCI + | PCI_VENDOR_ID_EMULEX); + break; + case LPFC_SLI_EVENT_TYPE_MISCONFIGURED: + misconfigured = (struct lpfc_acqe_misconfigured_event *) + &acqe_sli->event_data1; + + /* fetch the status for this port */ + switch (phba->sli4_hba.lnk_info.lnk_no) { + case LPFC_LINK_NUMBER_0: + status = bf_get(lpfc_sli_misconfigured_port0_state, + &misconfigured->theEvent); + operational = bf_get(lpfc_sli_misconfigured_port0_op, + &misconfigured->theEvent); + break; + case LPFC_LINK_NUMBER_1: + status = bf_get(lpfc_sli_misconfigured_port1_state, + &misconfigured->theEvent); + operational = bf_get(lpfc_sli_misconfigured_port1_op, + &misconfigured->theEvent); + break; + case LPFC_LINK_NUMBER_2: + status = bf_get(lpfc_sli_misconfigured_port2_state, + &misconfigured->theEvent); + operational = bf_get(lpfc_sli_misconfigured_port2_op, + &misconfigured->theEvent); + break; + case LPFC_LINK_NUMBER_3: + status = bf_get(lpfc_sli_misconfigured_port3_state, + &misconfigured->theEvent); + operational = bf_get(lpfc_sli_misconfigured_port3_op, + &misconfigured->theEvent); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "3296 " + "LPFC_SLI_EVENT_TYPE_MISCONFIGURED " + "event: Invalid link %d", + phba->sli4_hba.lnk_info.lnk_no); + return; + } + + /* Skip if optic state unchanged */ + if (phba->sli4_hba.lnk_info.optic_state == status) + return; + + switch (status) { + case LPFC_SLI_EVENT_STATUS_VALID: + sprintf(message, "Physical Link is functional"); + break; + case LPFC_SLI_EVENT_STATUS_NOT_PRESENT: + sprintf(message, "Optics faulted/incorrectly " + "installed/not installed - Reseat optics, " + "if issue not resolved, replace."); + break; + case LPFC_SLI_EVENT_STATUS_WRONG_TYPE: + sprintf(message, + "Optics of two types installed - Remove one " + "optic or install matching pair of optics."); + break; + case LPFC_SLI_EVENT_STATUS_UNSUPPORTED: + sprintf(message, "Incompatible optics - Replace with " + "compatible optics for card to function."); + break; + case LPFC_SLI_EVENT_STATUS_UNQUALIFIED: + sprintf(message, "Unqualified optics - Replace with " + "Avago optics for Warranty and Technical " + "Support - Link is%s operational", + (operational) ? " not" : ""); + break; + case LPFC_SLI_EVENT_STATUS_UNCERTIFIED: + sprintf(message, "Uncertified optics - Replace with " + "Avago-certified optics to enable link " + "operation - Link is%s operational", + (operational) ? " not" : ""); + break; + default: + /* firmware is reporting a status we don't know about */ + sprintf(message, "Unknown event status x%02x", status); + break; + } + phba->sli4_hba.lnk_info.optic_state = status; + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "3176 Port Name %c %s\n", port_name, message); + break; + case LPFC_SLI_EVENT_TYPE_REMOTE_DPORT: + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3192 Remote DPort Test Initiated - " + "Event Data1:x%08x Event Data2: x%08x\n", + acqe_sli->event_data1, acqe_sli->event_data2); + break; + default: + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3193 Async SLI event - Event Data1:x%08x Event Data2:" + "x%08x SLI Event Type:%d\n", + acqe_sli->event_data1, acqe_sli->event_data2, + evt_type); + break; + } +} + +/** + * lpfc_sli4_perform_vport_cvl - Perform clear virtual link on a vport + * @vport: pointer to vport data structure. + * + * This routine is to perform Clear Virtual Link (CVL) on a vport in + * response to a CVL event. + * + * Return the pointer to the ndlp with the vport if successful, otherwise + * return NULL. + **/ +static struct lpfc_nodelist * +lpfc_sli4_perform_vport_cvl(struct lpfc_vport *vport) +{ + struct lpfc_nodelist *ndlp; + struct Scsi_Host *shost; + struct lpfc_hba *phba; + + if (!vport) + return NULL; + phba = vport->phba; + if (!phba) + return NULL; + ndlp = lpfc_findnode_did(vport, Fabric_DID); + if (!ndlp) { + /* Cannot find existing Fabric ndlp, so allocate a new one */ + ndlp = lpfc_nlp_init(vport, Fabric_DID); + if (!ndlp) + return 0; + /* Set the node type */ + ndlp->nlp_type |= NLP_FABRIC; + /* Put ndlp onto node list */ + lpfc_enqueue_node(vport, ndlp); + } else if (!NLP_CHK_NODE_ACT(ndlp)) { + /* re-setup ndlp without removing from node list */ + ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE); + if (!ndlp) + return 0; + } + if ((phba->pport->port_state < LPFC_FLOGI) && + (phba->pport->port_state != LPFC_VPORT_FAILED)) + return NULL; + /* If virtual link is not yet instantiated ignore CVL */ + if ((vport != phba->pport) && (vport->port_state < LPFC_FDISC) + && (vport->port_state != LPFC_VPORT_FAILED)) + return NULL; + shost = lpfc_shost_from_vport(vport); + if (!shost) + return NULL; + lpfc_linkdown_port(vport); + lpfc_cleanup_pending_mbox(vport); + spin_lock_irq(shost->host_lock); + vport->fc_flag |= FC_VPORT_CVL_RCVD; + spin_unlock_irq(shost->host_lock); + + return ndlp; +} + +/** + * lpfc_sli4_perform_all_vport_cvl - Perform clear virtual link on all vports + * @vport: pointer to lpfc hba data structure. + * + * This routine is to perform Clear Virtual Link (CVL) on all vports in + * response to a FCF dead event. + **/ +static void +lpfc_sli4_perform_all_vport_cvl(struct lpfc_hba *phba) +{ + struct lpfc_vport **vports; + int i; + + vports = lpfc_create_vport_work_array(phba); + if (vports) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) + lpfc_sli4_perform_vport_cvl(vports[i]); + lpfc_destroy_vport_work_array(phba, vports); +} + +/** + * lpfc_sli4_async_fip_evt - Process the asynchronous FCoE FIP event + * @phba: pointer to lpfc hba data structure. + * @acqe_link: pointer to the async fcoe completion queue entry. + * + * This routine is to handle the SLI4 asynchronous fcoe event. + **/ +static void +lpfc_sli4_async_fip_evt(struct lpfc_hba *phba, + struct lpfc_acqe_fip *acqe_fip) +{ + uint8_t event_type = bf_get(lpfc_trailer_type, acqe_fip); + int rc; + struct lpfc_vport *vport; + struct lpfc_nodelist *ndlp; + struct Scsi_Host *shost; + int active_vlink_present; + struct lpfc_vport **vports; + int i; + + phba->fc_eventTag = acqe_fip->event_tag; + phba->fcoe_eventtag = acqe_fip->event_tag; + switch (event_type) { + case LPFC_FIP_EVENT_TYPE_NEW_FCF: + case LPFC_FIP_EVENT_TYPE_FCF_PARAM_MOD: + if (event_type == LPFC_FIP_EVENT_TYPE_NEW_FCF) + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | + LOG_DISCOVERY, + "2546 New FCF event, evt_tag:x%x, " + "index:x%x\n", + acqe_fip->event_tag, + acqe_fip->index); + else + lpfc_printf_log(phba, KERN_WARNING, LOG_FIP | + LOG_DISCOVERY, + "2788 FCF param modified event, " + "evt_tag:x%x, index:x%x\n", + acqe_fip->event_tag, + acqe_fip->index); + if (phba->fcf.fcf_flag & FCF_DISCOVERY) { + /* + * During period of FCF discovery, read the FCF + * table record indexed by the event to update + * FCF roundrobin failover eligible FCF bmask. + */ + lpfc_printf_log(phba, KERN_INFO, LOG_FIP | + LOG_DISCOVERY, + "2779 Read FCF (x%x) for updating " + "roundrobin FCF failover bmask\n", + acqe_fip->index); + rc = lpfc_sli4_read_fcf_rec(phba, acqe_fip->index); + } + + /* If the FCF discovery is in progress, do nothing. */ + spin_lock_irq(&phba->hbalock); + if (phba->hba_flag & FCF_TS_INPROG) { + spin_unlock_irq(&phba->hbalock); + break; + } + /* If fast FCF failover rescan event is pending, do nothing */ + if (phba->fcf.fcf_flag & (FCF_REDISC_EVT | FCF_REDISC_PEND)) { + spin_unlock_irq(&phba->hbalock); + break; + } + + /* If the FCF has been in discovered state, do nothing. */ + if (phba->fcf.fcf_flag & FCF_SCAN_DONE) { + spin_unlock_irq(&phba->hbalock); + break; + } + spin_unlock_irq(&phba->hbalock); + + /* Otherwise, scan the entire FCF table and re-discover SAN */ + lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, + "2770 Start FCF table scan per async FCF " + "event, evt_tag:x%x, index:x%x\n", + acqe_fip->event_tag, acqe_fip->index); + rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, + LPFC_FCOE_FCF_GET_FIRST); + if (rc) + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, + "2547 Issue FCF scan read FCF mailbox " + "command failed (x%x)\n", rc); + break; + + case LPFC_FIP_EVENT_TYPE_FCF_TABLE_FULL: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2548 FCF Table full count 0x%x tag 0x%x\n", + bf_get(lpfc_acqe_fip_fcf_count, acqe_fip), + acqe_fip->event_tag); + break; + + case LPFC_FIP_EVENT_TYPE_FCF_DEAD: + phba->fcoe_cvl_eventtag = acqe_fip->event_tag; + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, + "2549 FCF (x%x) disconnected from network, " + "tag:x%x\n", acqe_fip->index, acqe_fip->event_tag); + /* + * If we are in the middle of FCF failover process, clear + * the corresponding FCF bit in the roundrobin bitmap. + */ + spin_lock_irq(&phba->hbalock); + if ((phba->fcf.fcf_flag & FCF_DISCOVERY) && + (phba->fcf.current_rec.fcf_indx != acqe_fip->index)) { + spin_unlock_irq(&phba->hbalock); + /* Update FLOGI FCF failover eligible FCF bmask */ + lpfc_sli4_fcf_rr_index_clear(phba, acqe_fip->index); + break; + } + spin_unlock_irq(&phba->hbalock); + + /* If the event is not for currently used fcf do nothing */ + if (phba->fcf.current_rec.fcf_indx != acqe_fip->index) + break; + + /* + * Otherwise, request the port to rediscover the entire FCF + * table for a fast recovery from case that the current FCF + * is no longer valid as we are not in the middle of FCF + * failover process already. + */ + spin_lock_irq(&phba->hbalock); + /* Mark the fast failover process in progress */ + phba->fcf.fcf_flag |= FCF_DEAD_DISC; + spin_unlock_irq(&phba->hbalock); + + lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, + "2771 Start FCF fast failover process due to " + "FCF DEAD event: evt_tag:x%x, fcf_index:x%x " + "\n", acqe_fip->event_tag, acqe_fip->index); + rc = lpfc_sli4_redisc_fcf_table(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | + LOG_DISCOVERY, + "2772 Issue FCF rediscover mailbox " + "command failed, fail through to FCF " + "dead event\n"); + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_DEAD_DISC; + spin_unlock_irq(&phba->hbalock); + /* + * Last resort will fail over by treating this + * as a link down to FCF registration. + */ + lpfc_sli4_fcf_dead_failthrough(phba); + } else { + /* Reset FCF roundrobin bmask for new discovery */ + lpfc_sli4_clear_fcf_rr_bmask(phba); + /* + * Handling fast FCF failover to a DEAD FCF event is + * considered equalivant to receiving CVL to all vports. + */ + lpfc_sli4_perform_all_vport_cvl(phba); + } + break; + case LPFC_FIP_EVENT_TYPE_CVL: + phba->fcoe_cvl_eventtag = acqe_fip->event_tag; + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, + "2718 Clear Virtual Link Received for VPI 0x%x" + " tag 0x%x\n", acqe_fip->index, acqe_fip->event_tag); + + vport = lpfc_find_vport_by_vpid(phba, + acqe_fip->index); + ndlp = lpfc_sli4_perform_vport_cvl(vport); + if (!ndlp) + break; + active_vlink_present = 0; + + vports = lpfc_create_vport_work_array(phba); + if (vports) { + for (i = 0; i <= phba->max_vports && vports[i] != NULL; + i++) { + if ((!(vports[i]->fc_flag & + FC_VPORT_CVL_RCVD)) && + (vports[i]->port_state > LPFC_FDISC)) { + active_vlink_present = 1; + break; + } + } + lpfc_destroy_vport_work_array(phba, vports); + } + + /* + * Don't re-instantiate if vport is marked for deletion. + * If we are here first then vport_delete is going to wait + * for discovery to complete. + */ + if (!(vport->load_flag & FC_UNLOADING) && + active_vlink_present) { + /* + * If there are other active VLinks present, + * re-instantiate the Vlink using FDISC. + */ + mod_timer(&ndlp->nlp_delayfunc, + jiffies + msecs_to_jiffies(1000)); + shost = lpfc_shost_from_vport(vport); + spin_lock_irq(shost->host_lock); + ndlp->nlp_flag |= NLP_DELAY_TMO; + spin_unlock_irq(shost->host_lock); + ndlp->nlp_last_elscmd = ELS_CMD_FDISC; + vport->port_state = LPFC_FDISC; + } else { + /* + * Otherwise, we request port to rediscover + * the entire FCF table for a fast recovery + * from possible case that the current FCF + * is no longer valid if we are not already + * in the FCF failover process. + */ + spin_lock_irq(&phba->hbalock); + if (phba->fcf.fcf_flag & FCF_DISCOVERY) { + spin_unlock_irq(&phba->hbalock); + break; + } + /* Mark the fast failover process in progress */ + phba->fcf.fcf_flag |= FCF_ACVL_DISC; + spin_unlock_irq(&phba->hbalock); + lpfc_printf_log(phba, KERN_INFO, LOG_FIP | + LOG_DISCOVERY, + "2773 Start FCF failover per CVL, " + "evt_tag:x%x\n", acqe_fip->event_tag); + rc = lpfc_sli4_redisc_fcf_table(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | + LOG_DISCOVERY, + "2774 Issue FCF rediscover " + "mailbox command failed, " + "through to CVL event\n"); + spin_lock_irq(&phba->hbalock); + phba->fcf.fcf_flag &= ~FCF_ACVL_DISC; + spin_unlock_irq(&phba->hbalock); + /* + * Last resort will be re-try on the + * the current registered FCF entry. + */ + lpfc_retry_pport_discovery(phba); + } else + /* + * Reset FCF roundrobin bmask for new + * discovery. + */ + lpfc_sli4_clear_fcf_rr_bmask(phba); + } + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0288 Unknown FCoE event type 0x%x event tag " + "0x%x\n", event_type, acqe_fip->event_tag); + break; + } +} + +/** + * lpfc_sli4_async_dcbx_evt - Process the asynchronous dcbx event + * @phba: pointer to lpfc hba data structure. + * @acqe_link: pointer to the async dcbx completion queue entry. + * + * This routine is to handle the SLI4 asynchronous dcbx event. + **/ +static void +lpfc_sli4_async_dcbx_evt(struct lpfc_hba *phba, + struct lpfc_acqe_dcbx *acqe_dcbx) +{ + phba->fc_eventTag = acqe_dcbx->event_tag; + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0290 The SLI4 DCBX asynchronous event is not " + "handled yet\n"); +} + +/** + * lpfc_sli4_async_grp5_evt - Process the asynchronous group5 event + * @phba: pointer to lpfc hba data structure. + * @acqe_link: pointer to the async grp5 completion queue entry. + * + * This routine is to handle the SLI4 asynchronous grp5 event. A grp5 event + * is an asynchronous notified of a logical link speed change. The Port + * reports the logical link speed in units of 10Mbps. + **/ +static void +lpfc_sli4_async_grp5_evt(struct lpfc_hba *phba, + struct lpfc_acqe_grp5 *acqe_grp5) +{ + uint16_t prev_ll_spd; + + phba->fc_eventTag = acqe_grp5->event_tag; + phba->fcoe_eventtag = acqe_grp5->event_tag; + prev_ll_spd = phba->sli4_hba.link_state.logical_speed; + phba->sli4_hba.link_state.logical_speed = + (bf_get(lpfc_acqe_grp5_llink_spd, acqe_grp5)) * 10; + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "2789 GRP5 Async Event: Updating logical link speed " + "from %dMbps to %dMbps\n", prev_ll_spd, + phba->sli4_hba.link_state.logical_speed); +} + +/** + * lpfc_sli4_async_event_proc - Process all the pending asynchronous event + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked by the worker thread to process all the pending + * SLI4 asynchronous events. + **/ +void lpfc_sli4_async_event_proc(struct lpfc_hba *phba) +{ + struct lpfc_cq_event *cq_event; + + /* First, declare the async event has been handled */ + spin_lock_irq(&phba->hbalock); + phba->hba_flag &= ~ASYNC_EVENT; + spin_unlock_irq(&phba->hbalock); + /* Now, handle all the async events */ + while (!list_empty(&phba->sli4_hba.sp_asynce_work_queue)) { + /* Get the first event from the head of the event queue */ + spin_lock_irq(&phba->hbalock); + list_remove_head(&phba->sli4_hba.sp_asynce_work_queue, + cq_event, struct lpfc_cq_event, list); + spin_unlock_irq(&phba->hbalock); + /* Process the asynchronous event */ + switch (bf_get(lpfc_trailer_code, &cq_event->cqe.mcqe_cmpl)) { + case LPFC_TRAILER_CODE_LINK: + lpfc_sli4_async_link_evt(phba, + &cq_event->cqe.acqe_link); + break; + case LPFC_TRAILER_CODE_FCOE: + lpfc_sli4_async_fip_evt(phba, &cq_event->cqe.acqe_fip); + break; + case LPFC_TRAILER_CODE_DCBX: + lpfc_sli4_async_dcbx_evt(phba, + &cq_event->cqe.acqe_dcbx); + break; + case LPFC_TRAILER_CODE_GRP5: + lpfc_sli4_async_grp5_evt(phba, + &cq_event->cqe.acqe_grp5); + break; + case LPFC_TRAILER_CODE_FC: + lpfc_sli4_async_fc_evt(phba, &cq_event->cqe.acqe_fc); + break; + case LPFC_TRAILER_CODE_SLI: + lpfc_sli4_async_sli_evt(phba, &cq_event->cqe.acqe_sli); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "1804 Invalid asynchrous event code: " + "x%x\n", bf_get(lpfc_trailer_code, + &cq_event->cqe.mcqe_cmpl)); + break; + } + /* Free the completion event processed to the free pool */ + lpfc_sli4_cq_event_release(phba, cq_event); + } +} + +/** + * lpfc_sli4_fcf_redisc_event_proc - Process fcf table rediscovery event + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked by the worker thread to process FCF table + * rediscovery pending completion event. + **/ +void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *phba) +{ + int rc; + + spin_lock_irq(&phba->hbalock); + /* Clear FCF rediscovery timeout event */ + phba->fcf.fcf_flag &= ~FCF_REDISC_EVT; + /* Clear driver fast failover FCF record flag */ + phba->fcf.failover_rec.flag = 0; + /* Set state for FCF fast failover */ + phba->fcf.fcf_flag |= FCF_REDISC_FOV; + spin_unlock_irq(&phba->hbalock); + + /* Scan FCF table from the first entry to re-discover SAN */ + lpfc_printf_log(phba, KERN_INFO, LOG_FIP | LOG_DISCOVERY, + "2777 Start post-quiescent FCF table scan\n"); + rc = lpfc_sli4_fcf_scan_read_fcf_rec(phba, LPFC_FCOE_FCF_GET_FIRST); + if (rc) + lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_DISCOVERY, + "2747 Issue FCF scan read FCF mailbox " + "command failed 0x%x\n", rc); +} + +/** + * lpfc_api_table_setup - Set up per hba pci-device group func api jump table + * @phba: pointer to lpfc hba data structure. + * @dev_grp: The HBA PCI-Device group number. + * + * This routine is invoked to set up the per HBA PCI-Device group function + * API jump table entries. + * + * Return: 0 if success, otherwise -ENODEV + **/ +int +lpfc_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) +{ + int rc; + + /* Set up lpfc PCI-device group */ + phba->pci_dev_grp = dev_grp; + + /* The LPFC_PCI_DEV_OC uses SLI4 */ + if (dev_grp == LPFC_PCI_DEV_OC) + phba->sli_rev = LPFC_SLI_REV4; + + /* Set up device INIT API function jump table */ + rc = lpfc_init_api_table_setup(phba, dev_grp); + if (rc) + return -ENODEV; + /* Set up SCSI API function jump table */ + rc = lpfc_scsi_api_table_setup(phba, dev_grp); + if (rc) + return -ENODEV; + /* Set up SLI API function jump table */ + rc = lpfc_sli_api_table_setup(phba, dev_grp); + if (rc) + return -ENODEV; + /* Set up MBOX API function jump table */ + rc = lpfc_mbox_api_table_setup(phba, dev_grp); + if (rc) + return -ENODEV; + + return 0; +} + +/** + * lpfc_log_intr_mode - Log the active interrupt mode + * @phba: pointer to lpfc hba data structure. + * @intr_mode: active interrupt mode adopted. + * + * This routine it invoked to log the currently used active interrupt mode + * to the device. + **/ +static void lpfc_log_intr_mode(struct lpfc_hba *phba, uint32_t intr_mode) +{ + switch (intr_mode) { + case 0: + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0470 Enable INTx interrupt mode.\n"); + break; + case 1: + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0481 Enabled MSI interrupt mode.\n"); + break; + case 2: + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0480 Enabled MSI-X interrupt mode.\n"); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0482 Illegal interrupt mode.\n"); + break; + } + return; +} + +/** + * lpfc_enable_pci_dev - Enable a generic PCI device. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable the PCI device that is common to all + * PCI devices. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_enable_pci_dev(struct lpfc_hba *phba) +{ + struct pci_dev *pdev; + + /* Obtain PCI device reference */ + if (!phba->pcidev) + goto out_error; + else + pdev = phba->pcidev; + /* Enable PCI device */ + if (pci_enable_device_mem(pdev)) + goto out_error; + /* Request PCI resource for the device */ + if (pci_request_mem_regions(pdev, LPFC_DRIVER_NAME)) + goto out_disable_device; + /* Set up device as PCI master and save state for EEH */ + pci_set_master(pdev); + pci_try_set_mwi(pdev); + pci_save_state(pdev); + + /* PCIe EEH recovery on powerpc platforms needs fundamental reset */ + if (pci_is_pcie(pdev)) + pdev->needs_freset = 1; + + return 0; + +out_disable_device: + pci_disable_device(pdev); +out_error: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1401 Failed to enable pci device\n"); + return -ENODEV; +} + +/** + * lpfc_disable_pci_dev - Disable a generic PCI device. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to disable the PCI device that is common to all + * PCI devices. + **/ +static void +lpfc_disable_pci_dev(struct lpfc_hba *phba) +{ + struct pci_dev *pdev; + + /* Obtain PCI device reference */ + if (!phba->pcidev) + return; + else + pdev = phba->pcidev; + /* Release PCI resource and disable PCI device */ + pci_release_mem_regions(pdev); + pci_disable_device(pdev); + + return; +} + +/** + * lpfc_reset_hba - Reset a hba + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to reset a hba device. It brings the HBA + * offline, performs a board restart, and then brings the board back + * online. The lpfc_offline calls lpfc_sli_hba_down which will clean up + * on outstanding mailbox commands. + **/ +void +lpfc_reset_hba(struct lpfc_hba *phba) +{ + /* If resets are disabled then set error state and return. */ + if (!phba->cfg_enable_hba_reset) { + phba->link_state = LPFC_HBA_ERROR; + return; + } + if (phba->sli.sli_flag & LPFC_SLI_ACTIVE) + lpfc_offline_prep(phba, LPFC_MBX_WAIT); + else + lpfc_offline_prep(phba, LPFC_MBX_NO_WAIT); + lpfc_offline(phba); + lpfc_sli_brdrestart(phba); + lpfc_online(phba); + lpfc_unblock_mgmt_io(phba); +} + +/** + * lpfc_sli_sriov_nr_virtfn_get - Get the number of sr-iov virtual functions + * @phba: pointer to lpfc hba data structure. + * + * This function enables the PCI SR-IOV virtual functions to a physical + * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to + * enable the number of virtual functions to the physical function. As + * not all devices support SR-IOV, the return code from the pci_enable_sriov() + * API call does not considered as an error condition for most of the device. + **/ +uint16_t +lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *phba) +{ + struct pci_dev *pdev = phba->pcidev; + uint16_t nr_virtfn; + int pos; + + pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); + if (pos == 0) + return 0; + + pci_read_config_word(pdev, pos + PCI_SRIOV_TOTAL_VF, &nr_virtfn); + return nr_virtfn; +} + +/** + * lpfc_sli_probe_sriov_nr_virtfn - Enable a number of sr-iov virtual functions + * @phba: pointer to lpfc hba data structure. + * @nr_vfn: number of virtual functions to be enabled. + * + * This function enables the PCI SR-IOV virtual functions to a physical + * function. It invokes the PCI SR-IOV api with the @nr_vfn provided to + * enable the number of virtual functions to the physical function. As + * not all devices support SR-IOV, the return code from the pci_enable_sriov() + * API call does not considered as an error condition for most of the device. + **/ +int +lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *phba, int nr_vfn) +{ + struct pci_dev *pdev = phba->pcidev; + uint16_t max_nr_vfn; + int rc; + + max_nr_vfn = lpfc_sli_sriov_nr_virtfn_get(phba); + if (nr_vfn > max_nr_vfn) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3057 Requested vfs (%d) greater than " + "supported vfs (%d)", nr_vfn, max_nr_vfn); + return -EINVAL; + } + + rc = pci_enable_sriov(pdev, nr_vfn); + if (rc) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "2806 Failed to enable sriov on this device " + "with vfn number nr_vf:%d, rc:%d\n", + nr_vfn, rc); + } else + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "2807 Successful enable sriov on this device " + "with vfn number nr_vf:%d\n", nr_vfn); + return rc; +} + +/** + * lpfc_setup_driver_resource_phase1 - Phase1 etup driver internal resources. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up the driver internal resources before the + * device specific resource setup to support the HBA device it attached to. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) +{ + struct lpfc_sli *psli = &phba->sli; + + /* + * Driver resources common to all SLI revisions + */ + atomic_set(&phba->fast_event_count, 0); + spin_lock_init(&phba->hbalock); + + /* Initialize ndlp management spinlock */ + spin_lock_init(&phba->ndlp_lock); + + INIT_LIST_HEAD(&phba->port_list); + INIT_LIST_HEAD(&phba->work_list); + init_waitqueue_head(&phba->wait_4_mlo_m_q); + + /* Initialize the wait queue head for the kernel thread */ + init_waitqueue_head(&phba->work_waitq); + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "1403 Protocols supported %s %s %s\n", + ((phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) ? + "SCSI" : " "), + ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) ? + "NVME" : " "), + (phba->nvmet_support ? "NVMET" : " ")); + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { + /* Initialize the scsi buffer list used by driver for scsi IO */ + spin_lock_init(&phba->scsi_buf_list_get_lock); + INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_get); + spin_lock_init(&phba->scsi_buf_list_put_lock); + INIT_LIST_HEAD(&phba->lpfc_scsi_buf_list_put); + } + + if ((phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) && + (phba->nvmet_support == 0)) { + /* Initialize the NVME buffer list used by driver for NVME IO */ + spin_lock_init(&phba->nvme_buf_list_get_lock); + INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_get); + phba->get_nvme_bufs = 0; + spin_lock_init(&phba->nvme_buf_list_put_lock); + INIT_LIST_HEAD(&phba->lpfc_nvme_buf_list_put); + phba->put_nvme_bufs = 0; + } + + /* Initialize the fabric iocb list */ + INIT_LIST_HEAD(&phba->fabric_iocb_list); + + /* Initialize list to save ELS buffers */ + INIT_LIST_HEAD(&phba->elsbuf); + + /* Initialize FCF connection rec list */ + INIT_LIST_HEAD(&phba->fcf_conn_rec_list); + + /* Initialize OAS configuration list */ + spin_lock_init(&phba->devicelock); + INIT_LIST_HEAD(&phba->luns); + + /* MBOX heartbeat timer */ + timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0); + /* Fabric block timer */ + timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0); + /* EA polling mode timer */ + timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0); + /* Heartbeat timer */ + timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0); + + return 0; +} + +/** + * lpfc_sli_driver_resource_setup - Setup driver internal resources for SLI3 dev + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up the driver internal resources specific to + * support the SLI-3 HBA device it attached to. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) +{ + int rc; + + /* + * Initialize timers used by driver + */ + + /* FCP polling mode timer */ + timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0); + + /* Host attention work mask setup */ + phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); + phba->work_ha_mask |= (HA_RXMASK << (LPFC_ELS_RING * 4)); + + /* Get all the module params for configuring this host */ + lpfc_get_cfgparam(phba); + /* Set up phase-1 common device driver resources */ + + rc = lpfc_setup_driver_resource_phase1(phba); + if (rc) + return -ENODEV; + + if (phba->pcidev->device == PCI_DEVICE_ID_HORNET) { + phba->menlo_flag |= HBA_MENLO_SUPPORT; + /* check for menlo minimum sg count */ + if (phba->cfg_sg_seg_cnt < LPFC_DEFAULT_MENLO_SG_SEG_CNT) + phba->cfg_sg_seg_cnt = LPFC_DEFAULT_MENLO_SG_SEG_CNT; + } + + if (!phba->sli.sli3_ring) + phba->sli.sli3_ring = kcalloc(LPFC_SLI3_MAX_RING, + sizeof(struct lpfc_sli_ring), + GFP_KERNEL); + if (!phba->sli.sli3_ring) + return -ENOMEM; + + /* + * Since lpfc_sg_seg_cnt is module parameter, the sg_dma_buf_size + * used to create the sg_dma_buf_pool must be dynamically calculated. + */ + + /* Initialize the host templates the configured values. */ + lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; + + /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ + if (phba->cfg_enable_bg) { + /* + * The scsi_buf for a T10-DIF I/O will hold the FCP cmnd, + * the FCP rsp, and a BDE for each. Sice we have no control + * over how many protection data segments the SCSI Layer + * will hand us (ie: there could be one for every block + * in the IO), we just allocate enough BDEs to accomidate + * our max amount and we need to limit lpfc_sg_seg_cnt to + * minimize the risk of running out. + */ + phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + + sizeof(struct fcp_rsp) + + (LPFC_MAX_SG_SEG_CNT * sizeof(struct ulp_bde64)); + + if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SEG_CNT_DIF) + phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT_DIF; + + /* Total BDEs in BPL for scsi_sg_list and scsi_sg_prot_list */ + phba->cfg_total_seg_cnt = LPFC_MAX_SG_SEG_CNT; + } else { + /* + * The scsi_buf for a regular I/O will hold the FCP cmnd, + * the FCP rsp, a BDE for each, and a BDE for up to + * cfg_sg_seg_cnt data segments. + */ + phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + + sizeof(struct fcp_rsp) + + ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); + + /* Total BDEs in BPL for scsi_sg_list */ + phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + 2; + } + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, + "9088 sg_tablesize:%d dmabuf_size:%d total_bde:%d\n", + phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, + phba->cfg_total_seg_cnt); + + phba->max_vpi = LPFC_MAX_VPI; + /* This will be set to correct value after config_port mbox */ + phba->max_vports = 0; + + /* + * Initialize the SLI Layer to run with lpfc HBAs. + */ + lpfc_sli_setup(phba); + lpfc_sli_queue_init(phba); + + /* Allocate device driver memory */ + if (lpfc_mem_alloc(phba, BPL_ALIGN_SZ)) + return -ENOMEM; + + /* + * Enable sr-iov virtual functions if supported and configured + * through the module parameter. + */ + if (phba->cfg_sriov_nr_virtfn > 0) { + rc = lpfc_sli_probe_sriov_nr_virtfn(phba, + phba->cfg_sriov_nr_virtfn); + if (rc) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "2808 Requested number of SR-IOV " + "virtual functions (%d) is not " + "supported\n", + phba->cfg_sriov_nr_virtfn); + phba->cfg_sriov_nr_virtfn = 0; + } + } + + return 0; +} + +/** + * lpfc_sli_driver_resource_unset - Unset drvr internal resources for SLI3 dev + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unset the driver internal resources set up + * specific for supporting the SLI-3 HBA device it attached to. + **/ +static void +lpfc_sli_driver_resource_unset(struct lpfc_hba *phba) +{ + /* Free device driver memory allocated */ + lpfc_mem_free_all(phba); + + return; +} + +/** + * lpfc_sli4_driver_resource_setup - Setup drvr internal resources for SLI4 dev + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up the driver internal resources specific to + * support the SLI-4 HBA device it attached to. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) +{ + LPFC_MBOXQ_t *mboxq; + MAILBOX_t *mb; + int rc, i, max_buf_size; + int longs; + int fof_vectors = 0; + int extra; + uint64_t wwn; + u32 if_type; + u32 if_fam; + + phba->sli4_hba.num_online_cpu = num_online_cpus(); + phba->sli4_hba.num_present_cpu = lpfc_present_cpu; + phba->sli4_hba.curr_disp_cpu = 0; + + /* Get all the module params for configuring this host */ + lpfc_get_cfgparam(phba); + + /* Set up phase-1 common device driver resources */ + rc = lpfc_setup_driver_resource_phase1(phba); + if (rc) + return -ENODEV; + + /* Before proceed, wait for POST done and device ready */ + rc = lpfc_sli4_post_status_check(phba); + if (rc) + return -ENODEV; + + /* + * Initialize timers used by driver + */ + + timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0); + + /* FCF rediscover timer */ + timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0); + + /* + * Control structure for handling external multi-buffer mailbox + * command pass-through. + */ + memset((uint8_t *)&phba->mbox_ext_buf_ctx, 0, + sizeof(struct lpfc_mbox_ext_buf_ctx)); + INIT_LIST_HEAD(&phba->mbox_ext_buf_ctx.ext_dmabuf_list); + + phba->max_vpi = LPFC_MAX_VPI; + + /* This will be set to correct value after the read_config mbox */ + phba->max_vports = 0; + + /* Program the default value of vlan_id and fc_map */ + phba->valid_vlan = 0; + phba->fc_map[0] = LPFC_FCOE_FCF_MAP0; + phba->fc_map[1] = LPFC_FCOE_FCF_MAP1; + phba->fc_map[2] = LPFC_FCOE_FCF_MAP2; + + /* + * For SLI4, instead of using ring 0 (LPFC_FCP_RING) for FCP commands + * we will associate a new ring, for each EQ/CQ/WQ tuple. + * The WQ create will allocate the ring. + */ + + /* + * 1 for cmd, 1 for rsp, NVME adds an extra one + * for boundary conditions in its max_sgl_segment template. + */ + extra = 2; + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) + extra++; + + /* + * It doesn't matter what family our adapter is in, we are + * limited to 2 Pages, 512 SGEs, for our SGL. + * There are going to be 2 reserved SGEs: 1 FCP cmnd + 1 FCP rsp + */ + max_buf_size = (2 * SLI4_PAGE_SIZE); + if (phba->cfg_sg_seg_cnt > LPFC_MAX_SGL_SEG_CNT - extra) + phba->cfg_sg_seg_cnt = LPFC_MAX_SGL_SEG_CNT - extra; + + /* + * Since lpfc_sg_seg_cnt is module param, the sg_dma_buf_size + * used to create the sg_dma_buf_pool must be calculated. + */ + if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) { + /* + * The scsi_buf for a T10-DIF I/O holds the FCP cmnd, + * the FCP rsp, and a SGE. Sice we have no control + * over how many protection segments the SCSI Layer + * will hand us (ie: there could be one for every block + * in the IO), just allocate enough SGEs to accomidate + * our max amount and we need to limit lpfc_sg_seg_cnt + * to minimize the risk of running out. + */ + phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + + sizeof(struct fcp_rsp) + max_buf_size; + + /* Total SGEs for scsi_sg_list and scsi_sg_prot_list */ + phba->cfg_total_seg_cnt = LPFC_MAX_SGL_SEG_CNT; + + if (phba->cfg_sg_seg_cnt > LPFC_MAX_SG_SLI4_SEG_CNT_DIF) + phba->cfg_sg_seg_cnt = + LPFC_MAX_SG_SLI4_SEG_CNT_DIF; + } else { + /* + * The scsi_buf for a regular I/O holds the FCP cmnd, + * the FCP rsp, a SGE for each, and a SGE for up to + * cfg_sg_seg_cnt data segments. + */ + phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + + sizeof(struct fcp_rsp) + + ((phba->cfg_sg_seg_cnt + extra) * + sizeof(struct sli4_sge)); + + /* Total SGEs for scsi_sg_list */ + phba->cfg_total_seg_cnt = phba->cfg_sg_seg_cnt + extra; + + /* + * NOTE: if (phba->cfg_sg_seg_cnt + extra) <= 256 we only + * need to post 1 page for the SGL. + */ + } + + /* Initialize the host templates with the updated values. */ + lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; + + if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) + phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; + else + phba->cfg_sg_dma_buf_size = + SLI4_PAGE_ALIGN(phba->cfg_sg_dma_buf_size); + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_FCP, + "9087 sg_tablesize:%d dmabuf_size:%d total_sge:%d\n", + phba->cfg_sg_seg_cnt, phba->cfg_sg_dma_buf_size, + phba->cfg_total_seg_cnt); + + /* Initialize buffer queue management fields */ + INIT_LIST_HEAD(&phba->hbqs[LPFC_ELS_HBQ].hbq_buffer_list); + phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_sli4_rb_alloc; + phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_sli4_rb_free; + + /* + * Initialize the SLI Layer to run with lpfc SLI4 HBAs. + */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { + /* Initialize the Abort scsi buffer list used by driver */ + spin_lock_init(&phba->sli4_hba.abts_scsi_buf_list_lock); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_scsi_buf_list); + } + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + /* Initialize the Abort nvme buffer list used by driver */ + spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_io_wait_list); + } + + /* This abort list used by worker thread */ + spin_lock_init(&phba->sli4_hba.sgl_list_lock); + spin_lock_init(&phba->sli4_hba.nvmet_io_wait_lock); + + /* + * Initialize driver internal slow-path work queues + */ + + /* Driver internel slow-path CQ Event pool */ + INIT_LIST_HEAD(&phba->sli4_hba.sp_cqe_event_pool); + /* Response IOCB work queue list */ + INIT_LIST_HEAD(&phba->sli4_hba.sp_queue_event); + /* Asynchronous event CQ Event work queue list */ + INIT_LIST_HEAD(&phba->sli4_hba.sp_asynce_work_queue); + /* Fast-path XRI aborted CQ Event work queue list */ + INIT_LIST_HEAD(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue); + /* Slow-path XRI aborted CQ Event work queue list */ + INIT_LIST_HEAD(&phba->sli4_hba.sp_els_xri_aborted_work_queue); + /* Receive queue CQ Event work queue list */ + INIT_LIST_HEAD(&phba->sli4_hba.sp_unsol_work_queue); + + /* Initialize extent block lists. */ + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_blk_list); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_xri_blk_list); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_vfi_blk_list); + INIT_LIST_HEAD(&phba->lpfc_vpi_blk_list); + + /* Initialize mboxq lists. If the early init routines fail + * these lists need to be correctly initialized. + */ + INIT_LIST_HEAD(&phba->sli.mboxq); + INIT_LIST_HEAD(&phba->sli.mboxq_cmpl); + + /* initialize optic_state to 0xFF */ + phba->sli4_hba.lnk_info.optic_state = 0xff; + + /* Allocate device driver memory */ + rc = lpfc_mem_alloc(phba, SGL_ALIGN_SZ); + if (rc) + return -ENOMEM; + + /* IF Type 2 ports get initialized now. */ + if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) >= + LPFC_SLI_INTF_IF_TYPE_2) { + rc = lpfc_pci_function_reset(phba); + if (unlikely(rc)) { + rc = -ENODEV; + goto out_free_mem; + } + phba->temp_sensor_support = 1; + } + + /* Create the bootstrap mailbox command */ + rc = lpfc_create_bootstrap_mbox(phba); + if (unlikely(rc)) + goto out_free_mem; + + /* Set up the host's endian order with the device. */ + rc = lpfc_setup_endian_order(phba); + if (unlikely(rc)) + goto out_free_bsmbx; + + /* Set up the hba's configuration parameters. */ + rc = lpfc_sli4_read_config(phba); + if (unlikely(rc)) + goto out_free_bsmbx; + rc = lpfc_mem_alloc_active_rrq_pool_s4(phba); + if (unlikely(rc)) + goto out_free_bsmbx; + + /* IF Type 0 ports get initialized now. */ + if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == + LPFC_SLI_INTF_IF_TYPE_0) { + rc = lpfc_pci_function_reset(phba); + if (unlikely(rc)) + goto out_free_bsmbx; + } + + mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, + GFP_KERNEL); + if (!mboxq) { + rc = -ENOMEM; + goto out_free_bsmbx; + } + + /* Check for NVMET being configured */ + phba->nvmet_support = 0; + if (lpfc_enable_nvmet_cnt) { + + /* First get WWN of HBA instance */ + lpfc_read_nv(phba, mboxq); + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6016 Mailbox failed , mbxCmd x%x " + "READ_NV, mbxStatus x%x\n", + bf_get(lpfc_mqe_command, &mboxq->u.mqe), + bf_get(lpfc_mqe_status, &mboxq->u.mqe)); + mempool_free(mboxq, phba->mbox_mem_pool); + rc = -EIO; + goto out_free_bsmbx; + } + mb = &mboxq->u.mb; + memcpy(&wwn, (char *)mb->un.varRDnvp.nodename, + sizeof(uint64_t)); + wwn = cpu_to_be64(wwn); + phba->sli4_hba.wwnn.u.name = wwn; + memcpy(&wwn, (char *)mb->un.varRDnvp.portname, + sizeof(uint64_t)); + /* wwn is WWPN of HBA instance */ + wwn = cpu_to_be64(wwn); + phba->sli4_hba.wwpn.u.name = wwn; + + /* Check to see if it matches any module parameter */ + for (i = 0; i < lpfc_enable_nvmet_cnt; i++) { + if (wwn == lpfc_enable_nvmet[i]) { +#if (IS_ENABLED(CONFIG_NVME_TARGET_FC)) + if (lpfc_nvmet_mem_alloc(phba)) + break; + + phba->nvmet_support = 1; /* a match */ + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6017 NVME Target %016llx\n", + wwn); +#else + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6021 Can't enable NVME Target." + " NVME_TARGET_FC infrastructure" + " is not in kernel\n"); +#endif + break; + } + } + } + + lpfc_nvme_mod_param_dep(phba); + + /* + * Get sli4 parameters that override parameters from Port capabilities. + * If this call fails, it isn't critical unless the SLI4 parameters come + * back in conflict. + */ + rc = lpfc_get_sli4_parameters(phba, mboxq); + if (rc) { + if_type = bf_get(lpfc_sli_intf_if_type, + &phba->sli4_hba.sli_intf); + if_fam = bf_get(lpfc_sli_intf_sli_family, + &phba->sli4_hba.sli_intf); + if (phba->sli4_hba.extents_in_use && + phba->sli4_hba.rpi_hdrs_in_use) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2999 Unsupported SLI4 Parameters " + "Extents and RPI headers enabled.\n"); + if (if_type == LPFC_SLI_INTF_IF_TYPE_0 && + if_fam == LPFC_SLI_INTF_FAMILY_BE2) { + mempool_free(mboxq, phba->mbox_mem_pool); + rc = -EIO; + goto out_free_bsmbx; + } + } + if (!(if_type == LPFC_SLI_INTF_IF_TYPE_0 && + if_fam == LPFC_SLI_INTF_FAMILY_BE2)) { + mempool_free(mboxq, phba->mbox_mem_pool); + rc = -EIO; + goto out_free_bsmbx; + } + } + + mempool_free(mboxq, phba->mbox_mem_pool); + + /* Verify OAS is supported */ + lpfc_sli4_oas_verify(phba); + if (phba->cfg_fof) + fof_vectors = 1; + + /* Verify all the SLI4 queues */ + rc = lpfc_sli4_queue_verify(phba); + if (rc) + goto out_free_bsmbx; + + /* Create driver internal CQE event pool */ + rc = lpfc_sli4_cq_event_pool_create(phba); + if (rc) + goto out_free_bsmbx; + + /* Initialize sgl lists per host */ + lpfc_init_sgl_list(phba); + + /* Allocate and initialize active sgl array */ + rc = lpfc_init_active_sgl_array(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1430 Failed to initialize sgl list.\n"); + goto out_destroy_cq_event_pool; + } + rc = lpfc_sli4_init_rpi_hdrs(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1432 Failed to initialize rpi headers.\n"); + goto out_free_active_sgl; + } + + /* Allocate eligible FCF bmask memory for FCF roundrobin failover */ + longs = (LPFC_SLI4_FCF_TBL_INDX_MAX + BITS_PER_LONG - 1)/BITS_PER_LONG; + phba->fcf.fcf_rr_bmask = kcalloc(longs, sizeof(unsigned long), + GFP_KERNEL); + if (!phba->fcf.fcf_rr_bmask) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2759 Failed allocate memory for FCF round " + "robin failover bmask\n"); + rc = -ENOMEM; + goto out_remove_rpi_hdrs; + } + + phba->sli4_hba.hba_eq_hdl = kcalloc(fof_vectors + phba->io_channel_irqs, + sizeof(struct lpfc_hba_eq_hdl), + GFP_KERNEL); + if (!phba->sli4_hba.hba_eq_hdl) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2572 Failed allocate memory for " + "fast-path per-EQ handle array\n"); + rc = -ENOMEM; + goto out_free_fcf_rr_bmask; + } + + phba->sli4_hba.cpu_map = kcalloc(phba->sli4_hba.num_present_cpu, + sizeof(struct lpfc_vector_map_info), + GFP_KERNEL); + if (!phba->sli4_hba.cpu_map) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3327 Failed allocate memory for msi-x " + "interrupt vector mapping\n"); + rc = -ENOMEM; + goto out_free_hba_eq_hdl; + } + if (lpfc_used_cpu == NULL) { + lpfc_used_cpu = kcalloc(lpfc_present_cpu, sizeof(uint16_t), + GFP_KERNEL); + if (!lpfc_used_cpu) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3335 Failed allocate memory for msi-x " + "interrupt vector mapping\n"); + kfree(phba->sli4_hba.cpu_map); + rc = -ENOMEM; + goto out_free_hba_eq_hdl; + } + for (i = 0; i < lpfc_present_cpu; i++) + lpfc_used_cpu[i] = LPFC_VECTOR_MAP_EMPTY; + } + + /* + * Enable sr-iov virtual functions if supported and configured + * through the module parameter. + */ + if (phba->cfg_sriov_nr_virtfn > 0) { + rc = lpfc_sli_probe_sriov_nr_virtfn(phba, + phba->cfg_sriov_nr_virtfn); + if (rc) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "3020 Requested number of SR-IOV " + "virtual functions (%d) is not " + "supported\n", + phba->cfg_sriov_nr_virtfn); + phba->cfg_sriov_nr_virtfn = 0; + } + } + + return 0; + +out_free_hba_eq_hdl: + kfree(phba->sli4_hba.hba_eq_hdl); +out_free_fcf_rr_bmask: + kfree(phba->fcf.fcf_rr_bmask); +out_remove_rpi_hdrs: + lpfc_sli4_remove_rpi_hdrs(phba); +out_free_active_sgl: + lpfc_free_active_sgl(phba); +out_destroy_cq_event_pool: + lpfc_sli4_cq_event_pool_destroy(phba); +out_free_bsmbx: + lpfc_destroy_bootstrap_mbox(phba); +out_free_mem: + lpfc_mem_free(phba); + return rc; +} + +/** + * lpfc_sli4_driver_resource_unset - Unset drvr internal resources for SLI4 dev + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unset the driver internal resources set up + * specific for supporting the SLI-4 HBA device it attached to. + **/ +static void +lpfc_sli4_driver_resource_unset(struct lpfc_hba *phba) +{ + struct lpfc_fcf_conn_entry *conn_entry, *next_conn_entry; + + /* Free memory allocated for msi-x interrupt vector to CPU mapping */ + kfree(phba->sli4_hba.cpu_map); + phba->sli4_hba.num_present_cpu = 0; + phba->sli4_hba.num_online_cpu = 0; + phba->sli4_hba.curr_disp_cpu = 0; + + /* Free memory allocated for fast-path work queue handles */ + kfree(phba->sli4_hba.hba_eq_hdl); + + /* Free the allocated rpi headers. */ + lpfc_sli4_remove_rpi_hdrs(phba); + lpfc_sli4_remove_rpis(phba); + + /* Free eligible FCF index bmask */ + kfree(phba->fcf.fcf_rr_bmask); + + /* Free the ELS sgl list */ + lpfc_free_active_sgl(phba); + lpfc_free_els_sgl_list(phba); + lpfc_free_nvmet_sgl_list(phba); + + /* Free the completion queue EQ event pool */ + lpfc_sli4_cq_event_release_all(phba); + lpfc_sli4_cq_event_pool_destroy(phba); + + /* Release resource identifiers. */ + lpfc_sli4_dealloc_resource_identifiers(phba); + + /* Free the bsmbx region. */ + lpfc_destroy_bootstrap_mbox(phba); + + /* Free the SLI Layer memory with SLI4 HBAs */ + lpfc_mem_free_all(phba); + + /* Free the current connect table */ + list_for_each_entry_safe(conn_entry, next_conn_entry, + &phba->fcf_conn_rec_list, list) { + list_del_init(&conn_entry->list); + kfree(conn_entry); + } + + return; +} + +/** + * lpfc_init_api_table_setup - Set up init api function jump table + * @phba: The hba struct for which this call is being executed. + * @dev_grp: The HBA PCI-Device group number. + * + * This routine sets up the device INIT interface API function jump table + * in @phba struct. + * + * Returns: 0 - success, -ENODEV - failure. + **/ +int +lpfc_init_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp) +{ + phba->lpfc_hba_init_link = lpfc_hba_init_link; + phba->lpfc_hba_down_link = lpfc_hba_down_link; + phba->lpfc_selective_reset = lpfc_selective_reset; + switch (dev_grp) { + case LPFC_PCI_DEV_LP: + phba->lpfc_hba_down_post = lpfc_hba_down_post_s3; + phba->lpfc_handle_eratt = lpfc_handle_eratt_s3; + phba->lpfc_stop_port = lpfc_stop_port_s3; + break; + case LPFC_PCI_DEV_OC: + phba->lpfc_hba_down_post = lpfc_hba_down_post_s4; + phba->lpfc_handle_eratt = lpfc_handle_eratt_s4; + phba->lpfc_stop_port = lpfc_stop_port_s4; + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1431 Invalid HBA PCI-device group: 0x%x\n", + dev_grp); + return -ENODEV; + break; + } + return 0; +} + +/** + * lpfc_setup_driver_resource_phase2 - Phase2 setup driver internal resources. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up the driver internal resources after the + * device specific resource setup to support the HBA device it attached to. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_setup_driver_resource_phase2(struct lpfc_hba *phba) +{ + int error; + + /* Startup the kernel thread for this host adapter. */ + phba->worker_thread = kthread_run(lpfc_do_work, phba, + "lpfc_worker_%d", phba->brd_no); + if (IS_ERR(phba->worker_thread)) { + error = PTR_ERR(phba->worker_thread); + return error; + } + + /* The lpfc_wq workqueue for deferred irq use, is only used for SLI4 */ + if (phba->sli_rev == LPFC_SLI_REV4) + phba->wq = alloc_workqueue("lpfc_wq", WQ_MEM_RECLAIM, 0); + else + phba->wq = NULL; + + return 0; +} + +/** + * lpfc_unset_driver_resource_phase2 - Phase2 unset driver internal resources. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unset the driver internal resources set up after + * the device specific resource setup for supporting the HBA device it + * attached to. + **/ +static void +lpfc_unset_driver_resource_phase2(struct lpfc_hba *phba) +{ + if (phba->wq) { + flush_workqueue(phba->wq); + destroy_workqueue(phba->wq); + phba->wq = NULL; + } + + /* Stop kernel worker thread */ + if (phba->worker_thread) + kthread_stop(phba->worker_thread); +} + +/** + * lpfc_free_iocb_list - Free iocb list. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to free the driver's IOCB list and memory. + **/ +void +lpfc_free_iocb_list(struct lpfc_hba *phba) +{ + struct lpfc_iocbq *iocbq_entry = NULL, *iocbq_next = NULL; + + spin_lock_irq(&phba->hbalock); + list_for_each_entry_safe(iocbq_entry, iocbq_next, + &phba->lpfc_iocb_list, list) { + list_del(&iocbq_entry->list); + kfree(iocbq_entry); + phba->total_iocbq_bufs--; + } + spin_unlock_irq(&phba->hbalock); + + return; +} + +/** + * lpfc_init_iocb_list - Allocate and initialize iocb list. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to allocate and initizlize the driver's IOCB + * list and set up the IOCB tag array accordingly. + * + * Return codes + * 0 - successful + * other values - error + **/ +int +lpfc_init_iocb_list(struct lpfc_hba *phba, int iocb_count) +{ + struct lpfc_iocbq *iocbq_entry = NULL; + uint16_t iotag; + int i; + + /* Initialize and populate the iocb list per host. */ + INIT_LIST_HEAD(&phba->lpfc_iocb_list); + for (i = 0; i < iocb_count; i++) { + iocbq_entry = kzalloc(sizeof(struct lpfc_iocbq), GFP_KERNEL); + if (iocbq_entry == NULL) { + printk(KERN_ERR "%s: only allocated %d iocbs of " + "expected %d count. Unloading driver.\n", + __func__, i, LPFC_IOCB_LIST_CNT); + goto out_free_iocbq; + } + + iotag = lpfc_sli_next_iotag(phba, iocbq_entry); + if (iotag == 0) { + kfree(iocbq_entry); + printk(KERN_ERR "%s: failed to allocate IOTAG. " + "Unloading driver.\n", __func__); + goto out_free_iocbq; + } + iocbq_entry->sli4_lxritag = NO_XRI; + iocbq_entry->sli4_xritag = NO_XRI; + + spin_lock_irq(&phba->hbalock); + list_add(&iocbq_entry->list, &phba->lpfc_iocb_list); + phba->total_iocbq_bufs++; + spin_unlock_irq(&phba->hbalock); + } + + return 0; + +out_free_iocbq: + lpfc_free_iocb_list(phba); + + return -ENOMEM; +} + +/** + * lpfc_free_sgl_list - Free a given sgl list. + * @phba: pointer to lpfc hba data structure. + * @sglq_list: pointer to the head of sgl list. + * + * This routine is invoked to free a give sgl list and memory. + **/ +void +lpfc_free_sgl_list(struct lpfc_hba *phba, struct list_head *sglq_list) +{ + struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; + + list_for_each_entry_safe(sglq_entry, sglq_next, sglq_list, list) { + list_del(&sglq_entry->list); + lpfc_mbuf_free(phba, sglq_entry->virt, sglq_entry->phys); + kfree(sglq_entry); + } +} + +/** + * lpfc_free_els_sgl_list - Free els sgl list. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to free the driver's els sgl list and memory. + **/ +static void +lpfc_free_els_sgl_list(struct lpfc_hba *phba) +{ + LIST_HEAD(sglq_list); + + /* Retrieve all els sgls from driver list */ + spin_lock_irq(&phba->hbalock); + spin_lock(&phba->sli4_hba.sgl_list_lock); + list_splice_init(&phba->sli4_hba.lpfc_els_sgl_list, &sglq_list); + spin_unlock(&phba->sli4_hba.sgl_list_lock); + spin_unlock_irq(&phba->hbalock); + + /* Now free the sgl list */ + lpfc_free_sgl_list(phba, &sglq_list); +} + +/** + * lpfc_free_nvmet_sgl_list - Free nvmet sgl list. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to free the driver's nvmet sgl list and memory. + **/ +static void +lpfc_free_nvmet_sgl_list(struct lpfc_hba *phba) +{ + struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL; + LIST_HEAD(sglq_list); + + /* Retrieve all nvmet sgls from driver list */ + spin_lock_irq(&phba->hbalock); + spin_lock(&phba->sli4_hba.sgl_list_lock); + list_splice_init(&phba->sli4_hba.lpfc_nvmet_sgl_list, &sglq_list); + spin_unlock(&phba->sli4_hba.sgl_list_lock); + spin_unlock_irq(&phba->hbalock); + + /* Now free the sgl list */ + list_for_each_entry_safe(sglq_entry, sglq_next, &sglq_list, list) { + list_del(&sglq_entry->list); + lpfc_nvmet_buf_free(phba, sglq_entry->virt, sglq_entry->phys); + kfree(sglq_entry); + } + + /* Update the nvmet_xri_cnt to reflect no current sgls. + * The next initialization cycle sets the count and allocates + * the sgls over again. + */ + phba->sli4_hba.nvmet_xri_cnt = 0; +} + +/** + * lpfc_init_active_sgl_array - Allocate the buf to track active ELS XRIs. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to allocate the driver's active sgl memory. + * This array will hold the sglq_entry's for active IOs. + **/ +static int +lpfc_init_active_sgl_array(struct lpfc_hba *phba) +{ + int size; + size = sizeof(struct lpfc_sglq *); + size *= phba->sli4_hba.max_cfg_param.max_xri; + + phba->sli4_hba.lpfc_sglq_active_list = + kzalloc(size, GFP_KERNEL); + if (!phba->sli4_hba.lpfc_sglq_active_list) + return -ENOMEM; + return 0; +} + +/** + * lpfc_free_active_sgl - Free the buf that tracks active ELS XRIs. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to walk through the array of active sglq entries + * and free all of the resources. + * This is just a place holder for now. + **/ +static void +lpfc_free_active_sgl(struct lpfc_hba *phba) +{ + kfree(phba->sli4_hba.lpfc_sglq_active_list); +} + +/** + * lpfc_init_sgl_list - Allocate and initialize sgl list. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to allocate and initizlize the driver's sgl + * list and set up the sgl xritag tag array accordingly. + * + **/ +static void +lpfc_init_sgl_list(struct lpfc_hba *phba) +{ + /* Initialize and populate the sglq list per host/VF. */ + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_els_sgl_list); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_els_sgl_list); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_nvmet_sgl_list); + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); + + /* els xri-sgl book keeping */ + phba->sli4_hba.els_xri_cnt = 0; + + /* scsi xri-buffer book keeping */ + phba->sli4_hba.scsi_xri_cnt = 0; + + /* nvme xri-buffer book keeping */ + phba->sli4_hba.nvme_xri_cnt = 0; +} + +/** + * lpfc_sli4_init_rpi_hdrs - Post the rpi header memory region to the port + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to post rpi header templates to the + * port for those SLI4 ports that do not support extents. This routine + * posts a PAGE_SIZE memory region to the port to hold up to + * PAGE_SIZE modulo 64 rpi context headers. This is an initialization routine + * and should be called only when interrupts are disabled. + * + * Return codes + * 0 - successful + * -ERROR - otherwise. + **/ +int +lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba) +{ + int rc = 0; + struct lpfc_rpi_hdr *rpi_hdr; + + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list); + if (!phba->sli4_hba.rpi_hdrs_in_use) + return rc; + if (phba->sli4_hba.extents_in_use) + return -EIO; + + rpi_hdr = lpfc_sli4_create_rpi_hdr(phba); + if (!rpi_hdr) { + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, + "0391 Error during rpi post operation\n"); + lpfc_sli4_remove_rpis(phba); + rc = -ENODEV; + } + + return rc; +} + +/** + * lpfc_sli4_create_rpi_hdr - Allocate an rpi header memory region + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to allocate a single 4KB memory region to + * support rpis and stores them in the phba. This single region + * provides support for up to 64 rpis. The region is used globally + * by the device. + * + * Returns: + * A valid rpi hdr on success. + * A NULL pointer on any failure. + **/ +struct lpfc_rpi_hdr * +lpfc_sli4_create_rpi_hdr(struct lpfc_hba *phba) +{ + uint16_t rpi_limit, curr_rpi_range; + struct lpfc_dmabuf *dmabuf; + struct lpfc_rpi_hdr *rpi_hdr; + + /* + * If the SLI4 port supports extents, posting the rpi header isn't + * required. Set the expected maximum count and let the actual value + * get set when extents are fully allocated. + */ + if (!phba->sli4_hba.rpi_hdrs_in_use) + return NULL; + if (phba->sli4_hba.extents_in_use) + return NULL; + + /* The limit on the logical index is just the max_rpi count. */ + rpi_limit = phba->sli4_hba.max_cfg_param.max_rpi; + + spin_lock_irq(&phba->hbalock); + /* + * Establish the starting RPI in this header block. The starting + * rpi is normalized to a zero base because the physical rpi is + * port based. + */ + curr_rpi_range = phba->sli4_hba.next_rpi; + spin_unlock_irq(&phba->hbalock); + + /* Reached full RPI range */ + if (curr_rpi_range == rpi_limit) + return NULL; + + /* + * First allocate the protocol header region for the port. The + * port expects a 4KB DMA-mapped memory region that is 4K aligned. + */ + dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); + if (!dmabuf) + return NULL; + + dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, + LPFC_HDR_TEMPLATE_SIZE, + &dmabuf->phys, GFP_KERNEL); + if (!dmabuf->virt) { + rpi_hdr = NULL; + goto err_free_dmabuf; + } + + if (!IS_ALIGNED(dmabuf->phys, LPFC_HDR_TEMPLATE_SIZE)) { + rpi_hdr = NULL; + goto err_free_coherent; + } + + /* Save the rpi header data for cleanup later. */ + rpi_hdr = kzalloc(sizeof(struct lpfc_rpi_hdr), GFP_KERNEL); + if (!rpi_hdr) + goto err_free_coherent; + + rpi_hdr->dmabuf = dmabuf; + rpi_hdr->len = LPFC_HDR_TEMPLATE_SIZE; + rpi_hdr->page_count = 1; + spin_lock_irq(&phba->hbalock); + + /* The rpi_hdr stores the logical index only. */ + rpi_hdr->start_rpi = curr_rpi_range; + rpi_hdr->next_rpi = phba->sli4_hba.next_rpi + LPFC_RPI_HDR_COUNT; + list_add_tail(&rpi_hdr->list, &phba->sli4_hba.lpfc_rpi_hdr_list); + + spin_unlock_irq(&phba->hbalock); + return rpi_hdr; + + err_free_coherent: + dma_free_coherent(&phba->pcidev->dev, LPFC_HDR_TEMPLATE_SIZE, + dmabuf->virt, dmabuf->phys); + err_free_dmabuf: + kfree(dmabuf); + return NULL; +} + +/** + * lpfc_sli4_remove_rpi_hdrs - Remove all rpi header memory regions + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to remove all memory resources allocated + * to support rpis for SLI4 ports not supporting extents. This routine + * presumes the caller has released all rpis consumed by fabric or port + * logins and is prepared to have the header pages removed. + **/ +void +lpfc_sli4_remove_rpi_hdrs(struct lpfc_hba *phba) +{ + struct lpfc_rpi_hdr *rpi_hdr, *next_rpi_hdr; + + if (!phba->sli4_hba.rpi_hdrs_in_use) + goto exit; + + list_for_each_entry_safe(rpi_hdr, next_rpi_hdr, + &phba->sli4_hba.lpfc_rpi_hdr_list, list) { + list_del(&rpi_hdr->list); + dma_free_coherent(&phba->pcidev->dev, rpi_hdr->len, + rpi_hdr->dmabuf->virt, rpi_hdr->dmabuf->phys); + kfree(rpi_hdr->dmabuf); + kfree(rpi_hdr); + } + exit: + /* There are no rpis available to the port now. */ + phba->sli4_hba.next_rpi = 0; +} + +/** + * lpfc_hba_alloc - Allocate driver hba data structure for a device. + * @pdev: pointer to pci device data structure. + * + * This routine is invoked to allocate the driver hba data structure for an + * HBA device. If the allocation is successful, the phba reference to the + * PCI device data structure is set. + * + * Return codes + * pointer to @phba - successful + * NULL - error + **/ +static struct lpfc_hba * +lpfc_hba_alloc(struct pci_dev *pdev) +{ + struct lpfc_hba *phba; + + /* Allocate memory for HBA structure */ + phba = kzalloc(sizeof(struct lpfc_hba), GFP_KERNEL); + if (!phba) { + dev_err(&pdev->dev, "failed to allocate hba struct\n"); + return NULL; + } + + /* Set reference to PCI device in HBA structure */ + phba->pcidev = pdev; + + /* Assign an unused board number */ + phba->brd_no = lpfc_get_instance(); + if (phba->brd_no < 0) { + kfree(phba); + return NULL; + } + phba->eratt_poll_interval = LPFC_ERATT_POLL_INTERVAL; + + spin_lock_init(&phba->ct_ev_lock); + INIT_LIST_HEAD(&phba->ct_ev_waiters); + + return phba; +} + +/** + * lpfc_hba_free - Free driver hba data structure with a device. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to free the driver hba data structure with an + * HBA device. + **/ +static void +lpfc_hba_free(struct lpfc_hba *phba) +{ + /* Release the driver assigned board number */ + idr_remove(&lpfc_hba_index, phba->brd_no); + + /* Free memory allocated with sli3 rings */ + kfree(phba->sli.sli3_ring); + phba->sli.sli3_ring = NULL; + + kfree(phba); + return; +} + +/** + * lpfc_create_shost - Create hba physical port with associated scsi host. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to create HBA physical port and associate a SCSI + * host with it. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_create_shost(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport; + struct Scsi_Host *shost; + + /* Initialize HBA FC structure */ + phba->fc_edtov = FF_DEF_EDTOV; + phba->fc_ratov = FF_DEF_RATOV; + phba->fc_altov = FF_DEF_ALTOV; + phba->fc_arbtov = FF_DEF_ARBTOV; + + atomic_set(&phba->sdev_cnt, 0); + atomic_set(&phba->fc4ScsiInputRequests, 0); + atomic_set(&phba->fc4ScsiOutputRequests, 0); + atomic_set(&phba->fc4ScsiControlRequests, 0); + atomic_set(&phba->fc4ScsiIoCmpls, 0); + vport = lpfc_create_port(phba, phba->brd_no, &phba->pcidev->dev); + if (!vport) + return -ENODEV; + + shost = lpfc_shost_from_vport(vport); + phba->pport = vport; + + if (phba->nvmet_support) { + /* Only 1 vport (pport) will support NVME target */ + if (phba->txrdy_payload_pool == NULL) { + phba->txrdy_payload_pool = dma_pool_create( + "txrdy_pool", &phba->pcidev->dev, + TXRDY_PAYLOAD_LEN, 16, 0); + if (phba->txrdy_payload_pool) { + phba->targetport = NULL; + phba->cfg_enable_fc4_type = LPFC_ENABLE_NVME; + lpfc_printf_log(phba, KERN_INFO, + LOG_INIT | LOG_NVME_DISC, + "6076 NVME Target Found\n"); + } + } + } + + lpfc_debugfs_initialize(vport); + /* Put reference to SCSI host to driver's device private data */ + pci_set_drvdata(phba->pcidev, shost); + + /* + * At this point we are fully registered with PSA. In addition, + * any initial discovery should be completed. + */ + vport->load_flag |= FC_ALLOW_FDMI; + if (phba->cfg_enable_SmartSAN || + (phba->cfg_fdmi_on == LPFC_FDMI_SUPPORT)) { + + /* Setup appropriate attribute masks */ + vport->fdmi_hba_mask = LPFC_FDMI2_HBA_ATTR; + if (phba->cfg_enable_SmartSAN) + vport->fdmi_port_mask = LPFC_FDMI2_SMART_ATTR; + else + vport->fdmi_port_mask = LPFC_FDMI2_PORT_ATTR; + } + return 0; +} + +/** + * lpfc_destroy_shost - Destroy hba physical port with associated scsi host. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to destroy HBA physical port and the associated + * SCSI host. + **/ +static void +lpfc_destroy_shost(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport = phba->pport; + + /* Destroy physical port that associated with the SCSI host */ + destroy_port(vport); + + return; +} + +/** + * lpfc_setup_bg - Setup Block guard structures and debug areas. + * @phba: pointer to lpfc hba data structure. + * @shost: the shost to be used to detect Block guard settings. + * + * This routine sets up the local Block guard protocol settings for @shost. + * This routine also allocates memory for debugging bg buffers. + **/ +static void +lpfc_setup_bg(struct lpfc_hba *phba, struct Scsi_Host *shost) +{ + uint32_t old_mask; + uint32_t old_guard; + + int pagecnt = 10; + if (phba->cfg_prot_mask && phba->cfg_prot_guard) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "1478 Registering BlockGuard with the " + "SCSI layer\n"); + + old_mask = phba->cfg_prot_mask; + old_guard = phba->cfg_prot_guard; + + /* Only allow supported values */ + phba->cfg_prot_mask &= (SHOST_DIF_TYPE1_PROTECTION | + SHOST_DIX_TYPE0_PROTECTION | + SHOST_DIX_TYPE1_PROTECTION); + phba->cfg_prot_guard &= (SHOST_DIX_GUARD_IP | + SHOST_DIX_GUARD_CRC); + + /* DIF Type 1 protection for profiles AST1/C1 is end to end */ + if (phba->cfg_prot_mask == SHOST_DIX_TYPE1_PROTECTION) + phba->cfg_prot_mask |= SHOST_DIF_TYPE1_PROTECTION; + + if (phba->cfg_prot_mask && phba->cfg_prot_guard) { + if ((old_mask != phba->cfg_prot_mask) || + (old_guard != phba->cfg_prot_guard)) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1475 Registering BlockGuard with the " + "SCSI layer: mask %d guard %d\n", + phba->cfg_prot_mask, + phba->cfg_prot_guard); + + scsi_host_set_prot(shost, phba->cfg_prot_mask); + scsi_host_set_guard(shost, phba->cfg_prot_guard); + } else + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1479 Not Registering BlockGuard with the SCSI " + "layer, Bad protection parameters: %d %d\n", + old_mask, old_guard); + } + + if (!_dump_buf_data) { + while (pagecnt) { + spin_lock_init(&_dump_buf_lock); + _dump_buf_data = + (char *) __get_free_pages(GFP_KERNEL, pagecnt); + if (_dump_buf_data) { + lpfc_printf_log(phba, KERN_ERR, LOG_BG, + "9043 BLKGRD: allocated %d pages for " + "_dump_buf_data at 0x%p\n", + (1 << pagecnt), _dump_buf_data); + _dump_buf_data_order = pagecnt; + memset(_dump_buf_data, 0, + ((1 << PAGE_SHIFT) << pagecnt)); + break; + } else + --pagecnt; + } + if (!_dump_buf_data_order) + lpfc_printf_log(phba, KERN_ERR, LOG_BG, + "9044 BLKGRD: ERROR unable to allocate " + "memory for hexdump\n"); + } else + lpfc_printf_log(phba, KERN_ERR, LOG_BG, + "9045 BLKGRD: already allocated _dump_buf_data=0x%p" + "\n", _dump_buf_data); + if (!_dump_buf_dif) { + while (pagecnt) { + _dump_buf_dif = + (char *) __get_free_pages(GFP_KERNEL, pagecnt); + if (_dump_buf_dif) { + lpfc_printf_log(phba, KERN_ERR, LOG_BG, + "9046 BLKGRD: allocated %d pages for " + "_dump_buf_dif at 0x%p\n", + (1 << pagecnt), _dump_buf_dif); + _dump_buf_dif_order = pagecnt; + memset(_dump_buf_dif, 0, + ((1 << PAGE_SHIFT) << pagecnt)); + break; + } else + --pagecnt; + } + if (!_dump_buf_dif_order) + lpfc_printf_log(phba, KERN_ERR, LOG_BG, + "9047 BLKGRD: ERROR unable to allocate " + "memory for hexdump\n"); + } else + lpfc_printf_log(phba, KERN_ERR, LOG_BG, + "9048 BLKGRD: already allocated _dump_buf_dif=0x%p\n", + _dump_buf_dif); +} + +/** + * lpfc_post_init_setup - Perform necessary device post initialization setup. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to perform all the necessary post initialization + * setup for the device. + **/ +static void +lpfc_post_init_setup(struct lpfc_hba *phba) +{ + struct Scsi_Host *shost; + struct lpfc_adapter_event_header adapter_event; + + /* Get the default values for Model Name and Description */ + lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); + + /* + * hba setup may have changed the hba_queue_depth so we need to + * adjust the value of can_queue. + */ + shost = pci_get_drvdata(phba->pcidev); + shost->can_queue = phba->cfg_hba_queue_depth - 10; + if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) + lpfc_setup_bg(phba, shost); + + lpfc_host_attrib_init(shost); + + if (phba->cfg_poll & DISABLE_FCP_RING_INT) { + spin_lock_irq(shost->host_lock); + lpfc_poll_start_timer(phba); + spin_unlock_irq(shost->host_lock); + } + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0428 Perform SCSI scan\n"); + /* Send board arrival event to upper layer */ + adapter_event.event_type = FC_REG_ADAPTER_EVENT; + adapter_event.subcategory = LPFC_EVENT_ARRIVAL; + fc_host_post_vendor_event(shost, fc_get_event_number(), + sizeof(adapter_event), + (char *) &adapter_event, + LPFC_NL_VENDOR_ID); + return; +} + +/** + * lpfc_sli_pci_mem_setup - Setup SLI3 HBA PCI memory space. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up the PCI device memory space for device + * with SLI-3 interface spec. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_sli_pci_mem_setup(struct lpfc_hba *phba) +{ + struct pci_dev *pdev; + unsigned long bar0map_len, bar2map_len; + int i, hbq_count; + void *ptr; + int error = -ENODEV; + + /* Obtain PCI device reference */ + if (!phba->pcidev) + return error; + else + pdev = phba->pcidev; + + /* Set the device DMA mask size */ + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { + return error; + } + } + + /* Get the bus address of Bar0 and Bar2 and the number of bytes + * required by each mapping. + */ + phba->pci_bar0_map = pci_resource_start(pdev, 0); + bar0map_len = pci_resource_len(pdev, 0); + + phba->pci_bar2_map = pci_resource_start(pdev, 2); + bar2map_len = pci_resource_len(pdev, 2); + + /* Map HBA SLIM to a kernel virtual address. */ + phba->slim_memmap_p = ioremap(phba->pci_bar0_map, bar0map_len); + if (!phba->slim_memmap_p) { + dev_printk(KERN_ERR, &pdev->dev, + "ioremap failed for SLIM memory.\n"); + goto out; + } + + /* Map HBA Control Registers to a kernel virtual address. */ + phba->ctrl_regs_memmap_p = ioremap(phba->pci_bar2_map, bar2map_len); + if (!phba->ctrl_regs_memmap_p) { + dev_printk(KERN_ERR, &pdev->dev, + "ioremap failed for HBA control registers.\n"); + goto out_iounmap_slim; + } + + /* Allocate memory for SLI-2 structures */ + phba->slim2p.virt = dma_zalloc_coherent(&pdev->dev, SLI2_SLIM_SIZE, + &phba->slim2p.phys, GFP_KERNEL); + if (!phba->slim2p.virt) + goto out_iounmap; + + phba->mbox = phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, mbx); + phba->mbox_ext = (phba->slim2p.virt + + offsetof(struct lpfc_sli2_slim, mbx_ext_words)); + phba->pcb = (phba->slim2p.virt + offsetof(struct lpfc_sli2_slim, pcb)); + phba->IOCBs = (phba->slim2p.virt + + offsetof(struct lpfc_sli2_slim, IOCBs)); + + phba->hbqslimp.virt = dma_alloc_coherent(&pdev->dev, + lpfc_sli_hbq_size(), + &phba->hbqslimp.phys, + GFP_KERNEL); + if (!phba->hbqslimp.virt) + goto out_free_slim; + + hbq_count = lpfc_sli_hbq_count(); + ptr = phba->hbqslimp.virt; + for (i = 0; i < hbq_count; ++i) { + phba->hbqs[i].hbq_virt = ptr; + INIT_LIST_HEAD(&phba->hbqs[i].hbq_buffer_list); + ptr += (lpfc_hbq_defs[i]->entry_count * + sizeof(struct lpfc_hbq_entry)); + } + phba->hbqs[LPFC_ELS_HBQ].hbq_alloc_buffer = lpfc_els_hbq_alloc; + phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer = lpfc_els_hbq_free; + + memset(phba->hbqslimp.virt, 0, lpfc_sli_hbq_size()); + + phba->MBslimaddr = phba->slim_memmap_p; + phba->HAregaddr = phba->ctrl_regs_memmap_p + HA_REG_OFFSET; + phba->CAregaddr = phba->ctrl_regs_memmap_p + CA_REG_OFFSET; + phba->HSregaddr = phba->ctrl_regs_memmap_p + HS_REG_OFFSET; + phba->HCregaddr = phba->ctrl_regs_memmap_p + HC_REG_OFFSET; + + return 0; + +out_free_slim: + dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, + phba->slim2p.virt, phba->slim2p.phys); +out_iounmap: + iounmap(phba->ctrl_regs_memmap_p); +out_iounmap_slim: + iounmap(phba->slim_memmap_p); +out: + return error; +} + +/** + * lpfc_sli_pci_mem_unset - Unset SLI3 HBA PCI memory space. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unset the PCI device memory space for device + * with SLI-3 interface spec. + **/ +static void +lpfc_sli_pci_mem_unset(struct lpfc_hba *phba) +{ + struct pci_dev *pdev; + + /* Obtain PCI device reference */ + if (!phba->pcidev) + return; + else + pdev = phba->pcidev; + + /* Free coherent DMA memory allocated */ + dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), + phba->hbqslimp.virt, phba->hbqslimp.phys); + dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, + phba->slim2p.virt, phba->slim2p.phys); + + /* I/O memory unmap */ + iounmap(phba->ctrl_regs_memmap_p); + iounmap(phba->slim_memmap_p); + + return; +} + +/** + * lpfc_sli4_post_status_check - Wait for SLI4 POST done and check status + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to wait for SLI4 device Power On Self Test (POST) + * done and check status. + * + * Return 0 if successful, otherwise -ENODEV. + **/ +int +lpfc_sli4_post_status_check(struct lpfc_hba *phba) +{ + struct lpfc_register portsmphr_reg, uerrlo_reg, uerrhi_reg; + struct lpfc_register reg_data; + int i, port_error = 0; + uint32_t if_type; + + memset(&portsmphr_reg, 0, sizeof(portsmphr_reg)); + memset(®_data, 0, sizeof(reg_data)); + if (!phba->sli4_hba.PSMPHRregaddr) + return -ENODEV; + + /* Wait up to 30 seconds for the SLI Port POST done and ready */ + for (i = 0; i < 3000; i++) { + if (lpfc_readl(phba->sli4_hba.PSMPHRregaddr, + &portsmphr_reg.word0) || + (bf_get(lpfc_port_smphr_perr, &portsmphr_reg))) { + /* Port has a fatal POST error, break out */ + port_error = -ENODEV; + break; + } + if (LPFC_POST_STAGE_PORT_READY == + bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)) + break; + msleep(10); + } + + /* + * If there was a port error during POST, then don't proceed with + * other register reads as the data may not be valid. Just exit. + */ + if (port_error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1408 Port Failed POST - portsmphr=0x%x, " + "perr=x%x, sfi=x%x, nip=x%x, ipc=x%x, scr1=x%x, " + "scr2=x%x, hscratch=x%x, pstatus=x%x\n", + portsmphr_reg.word0, + bf_get(lpfc_port_smphr_perr, &portsmphr_reg), + bf_get(lpfc_port_smphr_sfi, &portsmphr_reg), + bf_get(lpfc_port_smphr_nip, &portsmphr_reg), + bf_get(lpfc_port_smphr_ipc, &portsmphr_reg), + bf_get(lpfc_port_smphr_scr1, &portsmphr_reg), + bf_get(lpfc_port_smphr_scr2, &portsmphr_reg), + bf_get(lpfc_port_smphr_host_scratch, &portsmphr_reg), + bf_get(lpfc_port_smphr_port_status, &portsmphr_reg)); + } else { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2534 Device Info: SLIFamily=0x%x, " + "SLIRev=0x%x, IFType=0x%x, SLIHint_1=0x%x, " + "SLIHint_2=0x%x, FT=0x%x\n", + bf_get(lpfc_sli_intf_sli_family, + &phba->sli4_hba.sli_intf), + bf_get(lpfc_sli_intf_slirev, + &phba->sli4_hba.sli_intf), + bf_get(lpfc_sli_intf_if_type, + &phba->sli4_hba.sli_intf), + bf_get(lpfc_sli_intf_sli_hint1, + &phba->sli4_hba.sli_intf), + bf_get(lpfc_sli_intf_sli_hint2, + &phba->sli4_hba.sli_intf), + bf_get(lpfc_sli_intf_func_type, + &phba->sli4_hba.sli_intf)); + /* + * Check for other Port errors during the initialization + * process. Fail the load if the port did not come up + * correctly. + */ + if_type = bf_get(lpfc_sli_intf_if_type, + &phba->sli4_hba.sli_intf); + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + phba->sli4_hba.ue_mask_lo = + readl(phba->sli4_hba.u.if_type0.UEMASKLOregaddr); + phba->sli4_hba.ue_mask_hi = + readl(phba->sli4_hba.u.if_type0.UEMASKHIregaddr); + uerrlo_reg.word0 = + readl(phba->sli4_hba.u.if_type0.UERRLOregaddr); + uerrhi_reg.word0 = + readl(phba->sli4_hba.u.if_type0.UERRHIregaddr); + if ((~phba->sli4_hba.ue_mask_lo & uerrlo_reg.word0) || + (~phba->sli4_hba.ue_mask_hi & uerrhi_reg.word0)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1422 Unrecoverable Error " + "Detected during POST " + "uerr_lo_reg=0x%x, " + "uerr_hi_reg=0x%x, " + "ue_mask_lo_reg=0x%x, " + "ue_mask_hi_reg=0x%x\n", + uerrlo_reg.word0, + uerrhi_reg.word0, + phba->sli4_hba.ue_mask_lo, + phba->sli4_hba.ue_mask_hi); + port_error = -ENODEV; + } + break; + case LPFC_SLI_INTF_IF_TYPE_2: + case LPFC_SLI_INTF_IF_TYPE_6: + /* Final checks. The port status should be clean. */ + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + ®_data.word0) || + (bf_get(lpfc_sliport_status_err, ®_data) && + !bf_get(lpfc_sliport_status_rn, ®_data))) { + phba->work_status[0] = + readl(phba->sli4_hba.u.if_type2. + ERR1regaddr); + phba->work_status[1] = + readl(phba->sli4_hba.u.if_type2. + ERR2regaddr); + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2888 Unrecoverable port error " + "following POST: port status reg " + "0x%x, port_smphr reg 0x%x, " + "error 1=0x%x, error 2=0x%x\n", + reg_data.word0, + portsmphr_reg.word0, + phba->work_status[0], + phba->work_status[1]); + port_error = -ENODEV; + } + break; + case LPFC_SLI_INTF_IF_TYPE_1: + default: + break; + } + } + return port_error; +} + +/** + * lpfc_sli4_bar0_register_memmap - Set up SLI4 BAR0 register memory map. + * @phba: pointer to lpfc hba data structure. + * @if_type: The SLI4 interface type getting configured. + * + * This routine is invoked to set up SLI4 BAR0 PCI config space register + * memory map. + **/ +static void +lpfc_sli4_bar0_register_memmap(struct lpfc_hba *phba, uint32_t if_type) +{ + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + phba->sli4_hba.u.if_type0.UERRLOregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_LO; + phba->sli4_hba.u.if_type0.UERRHIregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_UERR_STATUS_HI; + phba->sli4_hba.u.if_type0.UEMASKLOregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_LO; + phba->sli4_hba.u.if_type0.UEMASKHIregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_UE_MASK_HI; + phba->sli4_hba.SLIINTFregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; + break; + case LPFC_SLI_INTF_IF_TYPE_2: + phba->sli4_hba.u.if_type2.EQDregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_EQ_DELAY_OFFSET; + phba->sli4_hba.u.if_type2.ERR1regaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_ER1_OFFSET; + phba->sli4_hba.u.if_type2.ERR2regaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_ER2_OFFSET; + phba->sli4_hba.u.if_type2.CTRLregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_CTL_OFFSET; + phba->sli4_hba.u.if_type2.STATUSregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_STA_OFFSET; + phba->sli4_hba.SLIINTFregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_SLI_INTF; + phba->sli4_hba.PSMPHRregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_SEM_OFFSET; + phba->sli4_hba.RQDBregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_ULP0_RQ_DOORBELL; + phba->sli4_hba.WQDBregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_ULP0_WQ_DOORBELL; + phba->sli4_hba.CQDBregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_EQCQ_DOORBELL; + phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; + phba->sli4_hba.MQDBregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_MQ_DOORBELL; + phba->sli4_hba.BMBXregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; + break; + case LPFC_SLI_INTF_IF_TYPE_6: + phba->sli4_hba.u.if_type2.EQDregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_EQ_DELAY_OFFSET; + phba->sli4_hba.u.if_type2.ERR1regaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_ER1_OFFSET; + phba->sli4_hba.u.if_type2.ERR2regaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_ER2_OFFSET; + phba->sli4_hba.u.if_type2.CTRLregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_CTL_OFFSET; + phba->sli4_hba.u.if_type2.STATUSregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_STA_OFFSET; + phba->sli4_hba.PSMPHRregaddr = + phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PORT_SEM_OFFSET; + phba->sli4_hba.BMBXregaddr = + phba->sli4_hba.conf_regs_memmap_p + LPFC_BMBX; + break; + case LPFC_SLI_INTF_IF_TYPE_1: + default: + dev_printk(KERN_ERR, &phba->pcidev->dev, + "FATAL - unsupported SLI4 interface type - %d\n", + if_type); + break; + } +} + +/** + * lpfc_sli4_bar1_register_memmap - Set up SLI4 BAR1 register memory map. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up SLI4 BAR1 register memory map. + **/ +static void +lpfc_sli4_bar1_register_memmap(struct lpfc_hba *phba, uint32_t if_type) +{ + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + phba->sli4_hba.PSMPHRregaddr = + phba->sli4_hba.ctrl_regs_memmap_p + + LPFC_SLIPORT_IF0_SMPHR; + phba->sli4_hba.ISRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + + LPFC_HST_ISR0; + phba->sli4_hba.IMRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + + LPFC_HST_IMR0; + phba->sli4_hba.ISCRregaddr = phba->sli4_hba.ctrl_regs_memmap_p + + LPFC_HST_ISCR0; + break; + case LPFC_SLI_INTF_IF_TYPE_6: + phba->sli4_hba.RQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + + LPFC_IF6_RQ_DOORBELL; + phba->sli4_hba.WQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + + LPFC_IF6_WQ_DOORBELL; + phba->sli4_hba.CQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + + LPFC_IF6_CQ_DOORBELL; + phba->sli4_hba.EQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + + LPFC_IF6_EQ_DOORBELL; + phba->sli4_hba.MQDBregaddr = phba->sli4_hba.drbl_regs_memmap_p + + LPFC_IF6_MQ_DOORBELL; + break; + case LPFC_SLI_INTF_IF_TYPE_2: + case LPFC_SLI_INTF_IF_TYPE_1: + default: + dev_err(&phba->pcidev->dev, + "FATAL - unsupported SLI4 interface type - %d\n", + if_type); + break; + } +} + +/** + * lpfc_sli4_bar2_register_memmap - Set up SLI4 BAR2 register memory map. + * @phba: pointer to lpfc hba data structure. + * @vf: virtual function number + * + * This routine is invoked to set up SLI4 BAR2 doorbell register memory map + * based on the given viftual function number, @vf. + * + * Return 0 if successful, otherwise -ENODEV. + **/ +static int +lpfc_sli4_bar2_register_memmap(struct lpfc_hba *phba, uint32_t vf) +{ + if (vf > LPFC_VIR_FUNC_MAX) + return -ENODEV; + + phba->sli4_hba.RQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + + vf * LPFC_VFR_PAGE_SIZE + + LPFC_ULP0_RQ_DOORBELL); + phba->sli4_hba.WQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + + vf * LPFC_VFR_PAGE_SIZE + + LPFC_ULP0_WQ_DOORBELL); + phba->sli4_hba.CQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + + vf * LPFC_VFR_PAGE_SIZE + + LPFC_EQCQ_DOORBELL); + phba->sli4_hba.EQDBregaddr = phba->sli4_hba.CQDBregaddr; + phba->sli4_hba.MQDBregaddr = (phba->sli4_hba.drbl_regs_memmap_p + + vf * LPFC_VFR_PAGE_SIZE + LPFC_MQ_DOORBELL); + phba->sli4_hba.BMBXregaddr = (phba->sli4_hba.drbl_regs_memmap_p + + vf * LPFC_VFR_PAGE_SIZE + LPFC_BMBX); + return 0; +} + +/** + * lpfc_create_bootstrap_mbox - Create the bootstrap mailbox + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to create the bootstrap mailbox + * region consistent with the SLI-4 interface spec. This + * routine allocates all memory necessary to communicate + * mailbox commands to the port and sets up all alignment + * needs. No locks are expected to be held when calling + * this routine. + * + * Return codes + * 0 - successful + * -ENOMEM - could not allocated memory. + **/ +static int +lpfc_create_bootstrap_mbox(struct lpfc_hba *phba) +{ + uint32_t bmbx_size; + struct lpfc_dmabuf *dmabuf; + struct dma_address *dma_address; + uint32_t pa_addr; + uint64_t phys_addr; + + dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL); + if (!dmabuf) + return -ENOMEM; + + /* + * The bootstrap mailbox region is comprised of 2 parts + * plus an alignment restriction of 16 bytes. + */ + bmbx_size = sizeof(struct lpfc_bmbx_create) + (LPFC_ALIGN_16_BYTE - 1); + dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, bmbx_size, + &dmabuf->phys, GFP_KERNEL); + if (!dmabuf->virt) { + kfree(dmabuf); + return -ENOMEM; + } + + /* + * Initialize the bootstrap mailbox pointers now so that the register + * operations are simple later. The mailbox dma address is required + * to be 16-byte aligned. Also align the virtual memory as each + * maibox is copied into the bmbx mailbox region before issuing the + * command to the port. + */ + phba->sli4_hba.bmbx.dmabuf = dmabuf; + phba->sli4_hba.bmbx.bmbx_size = bmbx_size; + + phba->sli4_hba.bmbx.avirt = PTR_ALIGN(dmabuf->virt, + LPFC_ALIGN_16_BYTE); + phba->sli4_hba.bmbx.aphys = ALIGN(dmabuf->phys, + LPFC_ALIGN_16_BYTE); + + /* + * Set the high and low physical addresses now. The SLI4 alignment + * requirement is 16 bytes and the mailbox is posted to the port + * as two 30-bit addresses. The other data is a bit marking whether + * the 30-bit address is the high or low address. + * Upcast bmbx aphys to 64bits so shift instruction compiles + * clean on 32 bit machines. + */ + dma_address = &phba->sli4_hba.bmbx.dma_address; + phys_addr = (uint64_t)phba->sli4_hba.bmbx.aphys; + pa_addr = (uint32_t) ((phys_addr >> 34) & 0x3fffffff); + dma_address->addr_hi = (uint32_t) ((pa_addr << 2) | + LPFC_BMBX_BIT1_ADDR_HI); + + pa_addr = (uint32_t) ((phba->sli4_hba.bmbx.aphys >> 4) & 0x3fffffff); + dma_address->addr_lo = (uint32_t) ((pa_addr << 2) | + LPFC_BMBX_BIT1_ADDR_LO); + return 0; +} + +/** + * lpfc_destroy_bootstrap_mbox - Destroy all bootstrap mailbox resources + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to teardown the bootstrap mailbox + * region and release all host resources. This routine requires + * the caller to ensure all mailbox commands recovered, no + * additional mailbox comands are sent, and interrupts are disabled + * before calling this routine. + * + **/ +static void +lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba) +{ + dma_free_coherent(&phba->pcidev->dev, + phba->sli4_hba.bmbx.bmbx_size, + phba->sli4_hba.bmbx.dmabuf->virt, + phba->sli4_hba.bmbx.dmabuf->phys); + + kfree(phba->sli4_hba.bmbx.dmabuf); + memset(&phba->sli4_hba.bmbx, 0, sizeof(struct lpfc_bmbx)); +} + +/** + * lpfc_sli4_read_config - Get the config parameters. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to read the configuration parameters from the HBA. + * The configuration parameters are used to set the base and maximum values + * for RPI's XRI's VPI's VFI's and FCFIs. These values also affect the resource + * allocation for the port. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + * -EIO - The mailbox failed to complete successfully. + **/ +int +lpfc_sli4_read_config(struct lpfc_hba *phba) +{ + LPFC_MBOXQ_t *pmb; + struct lpfc_mbx_read_config *rd_config; + union lpfc_sli4_cfg_shdr *shdr; + uint32_t shdr_status, shdr_add_status; + struct lpfc_mbx_get_func_cfg *get_func_cfg; + struct lpfc_rsrc_desc_fcfcoe *desc; + char *pdesc_0; + uint16_t forced_link_speed; + uint32_t if_type; + int length, i, rc = 0, rc2; + + pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmb) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2011 Unable to allocate memory for issuing " + "SLI_CONFIG_SPECIAL mailbox command\n"); + return -ENOMEM; + } + + lpfc_read_config(phba, pmb); + + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2012 Mailbox failed , mbxCmd x%x " + "READ_CONFIG, mbxStatus x%x\n", + bf_get(lpfc_mqe_command, &pmb->u.mqe), + bf_get(lpfc_mqe_status, &pmb->u.mqe)); + rc = -EIO; + } else { + rd_config = &pmb->u.mqe.un.rd_config; + if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) { + phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL; + phba->sli4_hba.lnk_info.lnk_tp = + bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config); + phba->sli4_hba.lnk_info.lnk_no = + bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config); + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3081 lnk_type:%d, lnk_numb:%d\n", + phba->sli4_hba.lnk_info.lnk_tp, + phba->sli4_hba.lnk_info.lnk_no); + } else + lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, + "3082 Mailbox (x%x) returned ldv:x0\n", + bf_get(lpfc_mqe_command, &pmb->u.mqe)); + if (bf_get(lpfc_mbx_rd_conf_bbscn_def, rd_config)) { + phba->bbcredit_support = 1; + phba->sli4_hba.bbscn_params.word0 = rd_config->word8; + } + + phba->sli4_hba.extents_in_use = + bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config); + phba->sli4_hba.max_cfg_param.max_xri = + bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); + phba->sli4_hba.max_cfg_param.xri_base = + bf_get(lpfc_mbx_rd_conf_xri_base, rd_config); + phba->sli4_hba.max_cfg_param.max_vpi = + bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); + /* Limit the max we support */ + if (phba->sli4_hba.max_cfg_param.max_vpi > LPFC_MAX_VPORTS) + phba->sli4_hba.max_cfg_param.max_vpi = LPFC_MAX_VPORTS; + phba->sli4_hba.max_cfg_param.vpi_base = + bf_get(lpfc_mbx_rd_conf_vpi_base, rd_config); + phba->sli4_hba.max_cfg_param.max_rpi = + bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); + phba->sli4_hba.max_cfg_param.rpi_base = + bf_get(lpfc_mbx_rd_conf_rpi_base, rd_config); + phba->sli4_hba.max_cfg_param.max_vfi = + bf_get(lpfc_mbx_rd_conf_vfi_count, rd_config); + phba->sli4_hba.max_cfg_param.vfi_base = + bf_get(lpfc_mbx_rd_conf_vfi_base, rd_config); + phba->sli4_hba.max_cfg_param.max_fcfi = + bf_get(lpfc_mbx_rd_conf_fcfi_count, rd_config); + phba->sli4_hba.max_cfg_param.max_eq = + bf_get(lpfc_mbx_rd_conf_eq_count, rd_config); + phba->sli4_hba.max_cfg_param.max_rq = + bf_get(lpfc_mbx_rd_conf_rq_count, rd_config); + phba->sli4_hba.max_cfg_param.max_wq = + bf_get(lpfc_mbx_rd_conf_wq_count, rd_config); + phba->sli4_hba.max_cfg_param.max_cq = + bf_get(lpfc_mbx_rd_conf_cq_count, rd_config); + phba->lmt = bf_get(lpfc_mbx_rd_conf_lmt, rd_config); + phba->sli4_hba.next_xri = phba->sli4_hba.max_cfg_param.xri_base; + phba->vpi_base = phba->sli4_hba.max_cfg_param.vpi_base; + phba->vfi_base = phba->sli4_hba.max_cfg_param.vfi_base; + phba->max_vpi = (phba->sli4_hba.max_cfg_param.max_vpi > 0) ? + (phba->sli4_hba.max_cfg_param.max_vpi - 1) : 0; + phba->max_vports = phba->max_vpi; + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "2003 cfg params Extents? %d " + "XRI(B:%d M:%d), " + "VPI(B:%d M:%d) " + "VFI(B:%d M:%d) " + "RPI(B:%d M:%d) " + "FCFI:%d EQ:%d CQ:%d WQ:%d RQ:%d\n", + phba->sli4_hba.extents_in_use, + phba->sli4_hba.max_cfg_param.xri_base, + phba->sli4_hba.max_cfg_param.max_xri, + phba->sli4_hba.max_cfg_param.vpi_base, + phba->sli4_hba.max_cfg_param.max_vpi, + phba->sli4_hba.max_cfg_param.vfi_base, + phba->sli4_hba.max_cfg_param.max_vfi, + phba->sli4_hba.max_cfg_param.rpi_base, + phba->sli4_hba.max_cfg_param.max_rpi, + phba->sli4_hba.max_cfg_param.max_fcfi, + phba->sli4_hba.max_cfg_param.max_eq, + phba->sli4_hba.max_cfg_param.max_cq, + phba->sli4_hba.max_cfg_param.max_wq, + phba->sli4_hba.max_cfg_param.max_rq); + + /* + * Calculate NVME queue resources based on how + * many WQ/CQs are available. + */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + length = phba->sli4_hba.max_cfg_param.max_wq; + if (phba->sli4_hba.max_cfg_param.max_cq < + phba->sli4_hba.max_cfg_param.max_wq) + length = phba->sli4_hba.max_cfg_param.max_cq; + + /* + * Whats left after this can go toward NVME. + * The minus 6 accounts for ELS, NVME LS, MBOX + * fof plus a couple extra. When configured for + * NVMET, FCP io channel WQs are not created. + */ + length -= 6; + if (!phba->nvmet_support) + length -= phba->cfg_fcp_io_channel; + + if (phba->cfg_nvme_io_channel > length) { + lpfc_printf_log( + phba, KERN_ERR, LOG_SLI, + "2005 Reducing NVME IO channel to %d: " + "WQ %d CQ %d NVMEIO %d FCPIO %d\n", + length, + phba->sli4_hba.max_cfg_param.max_wq, + phba->sli4_hba.max_cfg_param.max_cq, + phba->cfg_nvme_io_channel, + phba->cfg_fcp_io_channel); + + phba->cfg_nvme_io_channel = length; + } + } + } + + if (rc) + goto read_cfg_out; + + /* Update link speed if forced link speed is supported */ + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { + forced_link_speed = + bf_get(lpfc_mbx_rd_conf_link_speed, rd_config); + if (forced_link_speed) { + phba->hba_flag |= HBA_FORCED_LINK_SPEED; + + switch (forced_link_speed) { + case LINK_SPEED_1G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_1G; + break; + case LINK_SPEED_2G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_2G; + break; + case LINK_SPEED_4G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_4G; + break; + case LINK_SPEED_8G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_8G; + break; + case LINK_SPEED_10G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_10G; + break; + case LINK_SPEED_16G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_16G; + break; + case LINK_SPEED_32G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_32G; + break; + case LINK_SPEED_64G: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_64G; + break; + case 0xffff: + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_AUTO; + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "0047 Unrecognized link " + "speed : %d\n", + forced_link_speed); + phba->cfg_link_speed = + LPFC_USER_LINK_SPEED_AUTO; + } + } + } + + /* Reset the DFT_HBA_Q_DEPTH to the max xri */ + length = phba->sli4_hba.max_cfg_param.max_xri - + lpfc_sli4_get_els_iocb_cnt(phba); + if (phba->cfg_hba_queue_depth > length) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "3361 HBA queue depth changed from %d to %d\n", + phba->cfg_hba_queue_depth, length); + phba->cfg_hba_queue_depth = length; + } + + if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < + LPFC_SLI_INTF_IF_TYPE_2) + goto read_cfg_out; + + /* get the pf# and vf# for SLI4 if_type 2 port */ + length = (sizeof(struct lpfc_mbx_get_func_cfg) - + sizeof(struct lpfc_sli4_cfg_mhdr)); + lpfc_sli4_config(phba, pmb, LPFC_MBOX_SUBSYSTEM_COMMON, + LPFC_MBOX_OPCODE_GET_FUNCTION_CONFIG, + length, LPFC_SLI4_MBX_EMBED); + + rc2 = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + shdr = (union lpfc_sli4_cfg_shdr *) + &pmb->u.mqe.un.sli4_config.header.cfg_shdr; + shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); + shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); + if (rc2 || shdr_status || shdr_add_status) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "3026 Mailbox failed , mbxCmd x%x " + "GET_FUNCTION_CONFIG, mbxStatus x%x\n", + bf_get(lpfc_mqe_command, &pmb->u.mqe), + bf_get(lpfc_mqe_status, &pmb->u.mqe)); + goto read_cfg_out; + } + + /* search for fc_fcoe resrouce descriptor */ + get_func_cfg = &pmb->u.mqe.un.get_func_cfg; + + pdesc_0 = (char *)&get_func_cfg->func_cfg.desc[0]; + desc = (struct lpfc_rsrc_desc_fcfcoe *)pdesc_0; + length = bf_get(lpfc_rsrc_desc_fcfcoe_length, desc); + if (length == LPFC_RSRC_DESC_TYPE_FCFCOE_V0_RSVD) + length = LPFC_RSRC_DESC_TYPE_FCFCOE_V0_LENGTH; + else if (length != LPFC_RSRC_DESC_TYPE_FCFCOE_V1_LENGTH) + goto read_cfg_out; + + for (i = 0; i < LPFC_RSRC_DESC_MAX_NUM; i++) { + desc = (struct lpfc_rsrc_desc_fcfcoe *)(pdesc_0 + length * i); + if (LPFC_RSRC_DESC_TYPE_FCFCOE == + bf_get(lpfc_rsrc_desc_fcfcoe_type, desc)) { + phba->sli4_hba.iov.pf_number = + bf_get(lpfc_rsrc_desc_fcfcoe_pfnum, desc); + phba->sli4_hba.iov.vf_number = + bf_get(lpfc_rsrc_desc_fcfcoe_vfnum, desc); + break; + } + } + + if (i < LPFC_RSRC_DESC_MAX_NUM) + lpfc_printf_log(phba, KERN_INFO, LOG_SLI, + "3027 GET_FUNCTION_CONFIG: pf_number:%d, " + "vf_number:%d\n", phba->sli4_hba.iov.pf_number, + phba->sli4_hba.iov.vf_number); + else + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "3028 GET_FUNCTION_CONFIG: failed to find " + "Resrouce Descriptor:x%x\n", + LPFC_RSRC_DESC_TYPE_FCFCOE); + +read_cfg_out: + mempool_free(pmb, phba->mbox_mem_pool); + return rc; +} + +/** + * lpfc_setup_endian_order - Write endian order to an SLI4 if_type 0 port. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to setup the port-side endian order when + * the port if_type is 0. This routine has no function for other + * if_types. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + * -EIO - The mailbox failed to complete successfully. + **/ +static int +lpfc_setup_endian_order(struct lpfc_hba *phba) +{ + LPFC_MBOXQ_t *mboxq; + uint32_t if_type, rc = 0; + uint32_t endian_mb_data[2] = {HOST_ENDIAN_LOW_WORD0, + HOST_ENDIAN_HIGH_WORD1}; + + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, + GFP_KERNEL); + if (!mboxq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0492 Unable to allocate memory for " + "issuing SLI_CONFIG_SPECIAL mailbox " + "command\n"); + return -ENOMEM; + } + + /* + * The SLI4_CONFIG_SPECIAL mailbox command requires the first + * two words to contain special data values and no other data. + */ + memset(mboxq, 0, sizeof(LPFC_MBOXQ_t)); + memcpy(&mboxq->u.mqe, &endian_mb_data, sizeof(endian_mb_data)); + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0493 SLI_CONFIG_SPECIAL mailbox " + "failed with status x%x\n", + rc); + rc = -EIO; + } + mempool_free(mboxq, phba->mbox_mem_pool); + break; + case LPFC_SLI_INTF_IF_TYPE_6: + case LPFC_SLI_INTF_IF_TYPE_2: + case LPFC_SLI_INTF_IF_TYPE_1: + default: + break; + } + return rc; +} + +/** + * lpfc_sli4_queue_verify - Verify and update EQ counts + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to check the user settable queue counts for EQs. + * After this routine is called the counts will be set to valid values that + * adhere to the constraints of the system's interrupt vectors and the port's + * queue resources. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + **/ +static int +lpfc_sli4_queue_verify(struct lpfc_hba *phba) +{ + int io_channel; + int fof_vectors = phba->cfg_fof ? 1 : 0; + + /* + * Sanity check for configured queue parameters against the run-time + * device parameters + */ + + /* Sanity check on HBA EQ parameters */ + io_channel = phba->io_channel_irqs; + + if (phba->sli4_hba.num_online_cpu < io_channel) { + lpfc_printf_log(phba, + KERN_ERR, LOG_INIT, + "3188 Reducing IO channels to match number of " + "online CPUs: from %d to %d\n", + io_channel, phba->sli4_hba.num_online_cpu); + io_channel = phba->sli4_hba.num_online_cpu; + } + + if (io_channel + fof_vectors > phba->sli4_hba.max_cfg_param.max_eq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2575 Reducing IO channels to match number of " + "available EQs: from %d to %d\n", + io_channel, + phba->sli4_hba.max_cfg_param.max_eq); + io_channel = phba->sli4_hba.max_cfg_param.max_eq - fof_vectors; + } + + /* The actual number of FCP / NVME event queues adopted */ + if (io_channel != phba->io_channel_irqs) + phba->io_channel_irqs = io_channel; + if (phba->cfg_fcp_io_channel > io_channel) + phba->cfg_fcp_io_channel = io_channel; + if (phba->cfg_nvme_io_channel > io_channel) + phba->cfg_nvme_io_channel = io_channel; + if (phba->nvmet_support) { + if (phba->cfg_nvme_io_channel < phba->cfg_nvmet_mrq) + phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; + } + if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) + phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2574 IO channels: irqs %d fcp %d nvme %d MRQ: %d\n", + phba->io_channel_irqs, phba->cfg_fcp_io_channel, + phba->cfg_nvme_io_channel, phba->cfg_nvmet_mrq); + + /* Get EQ depth from module parameter, fake the default for now */ + phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; + phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; + + /* Get CQ depth from module parameter, fake the default for now */ + phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; + phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; + return 0; +} + +static int +lpfc_alloc_nvme_wq_cq(struct lpfc_hba *phba, int wqidx) +{ + struct lpfc_queue *qdesc; + + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, + phba->sli4_hba.cq_esize, + LPFC_CQE_EXP_COUNT); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0508 Failed allocate fast-path NVME CQ (%d)\n", + wqidx); + return 1; + } + qdesc->qe_valid = 1; + phba->sli4_hba.nvme_cq[wqidx] = qdesc; + + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, + LPFC_WQE128_SIZE, LPFC_WQE_EXP_COUNT); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0509 Failed allocate fast-path NVME WQ (%d)\n", + wqidx); + return 1; + } + phba->sli4_hba.nvme_wq[wqidx] = qdesc; + list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); + return 0; +} + +static int +lpfc_alloc_fcp_wq_cq(struct lpfc_hba *phba, int wqidx) +{ + struct lpfc_queue *qdesc; + uint32_t wqesize; + + /* Create Fast Path FCP CQs */ + if (phba->enab_exp_wqcq_pages) + /* Increase the CQ size when WQEs contain an embedded cdb */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, + phba->sli4_hba.cq_esize, + LPFC_CQE_EXP_COUNT); + + else + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.cq_esize, + phba->sli4_hba.cq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0499 Failed allocate fast-path FCP CQ (%d)\n", wqidx); + return 1; + } + qdesc->qe_valid = 1; + phba->sli4_hba.fcp_cq[wqidx] = qdesc; + + /* Create Fast Path FCP WQs */ + if (phba->enab_exp_wqcq_pages) { + /* Increase the WQ size when WQEs contain an embedded cdb */ + wqesize = (phba->fcp_embed_io) ? + LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_EXPANDED_PAGE_SIZE, + wqesize, + LPFC_WQE_EXP_COUNT); + } else + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.wq_esize, + phba->sli4_hba.wq_ecount); + + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0503 Failed allocate fast-path FCP WQ (%d)\n", + wqidx); + return 1; + } + phba->sli4_hba.fcp_wq[wqidx] = qdesc; + list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); + return 0; +} + +/** + * lpfc_sli4_queue_create - Create all the SLI4 queues + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to allocate all the SLI4 queues for the FCoE HBA + * operation. For each SLI4 queue type, the parameters such as queue entry + * count (queue depth) shall be taken from the module parameter. For now, + * we just use some constant number as place holder. + * + * Return codes + * 0 - successful + * -ENOMEM - No availble memory + * -EIO - The mailbox failed to complete successfully. + **/ +int +lpfc_sli4_queue_create(struct lpfc_hba *phba) +{ + struct lpfc_queue *qdesc; + int idx, io_channel; + + /* + * Create HBA Record arrays. + * Both NVME and FCP will share that same vectors / EQs + */ + io_channel = phba->io_channel_irqs; + if (!io_channel) + return -ERANGE; + + phba->sli4_hba.mq_esize = LPFC_MQE_SIZE; + phba->sli4_hba.mq_ecount = LPFC_MQE_DEF_COUNT; + phba->sli4_hba.wq_esize = LPFC_WQE_SIZE; + phba->sli4_hba.wq_ecount = LPFC_WQE_DEF_COUNT; + phba->sli4_hba.rq_esize = LPFC_RQE_SIZE; + phba->sli4_hba.rq_ecount = LPFC_RQE_DEF_COUNT; + phba->sli4_hba.eq_esize = LPFC_EQE_SIZE_4B; + phba->sli4_hba.eq_ecount = LPFC_EQE_DEF_COUNT; + phba->sli4_hba.cq_esize = LPFC_CQE_SIZE; + phba->sli4_hba.cq_ecount = LPFC_CQE_DEF_COUNT; + + phba->sli4_hba.hba_eq = kcalloc(io_channel, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.hba_eq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2576 Failed allocate memory for " + "fast-path EQ record array\n"); + goto out_error; + } + + if (phba->cfg_fcp_io_channel) { + phba->sli4_hba.fcp_cq = kcalloc(phba->cfg_fcp_io_channel, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.fcp_cq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2577 Failed allocate memory for " + "fast-path CQ record array\n"); + goto out_error; + } + phba->sli4_hba.fcp_wq = kcalloc(phba->cfg_fcp_io_channel, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.fcp_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2578 Failed allocate memory for " + "fast-path FCP WQ record array\n"); + goto out_error; + } + /* + * Since the first EQ can have multiple CQs associated with it, + * this array is used to quickly see if we have a FCP fast-path + * CQ match. + */ + phba->sli4_hba.fcp_cq_map = kcalloc(phba->cfg_fcp_io_channel, + sizeof(uint16_t), + GFP_KERNEL); + if (!phba->sli4_hba.fcp_cq_map) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2545 Failed allocate memory for " + "fast-path CQ map\n"); + goto out_error; + } + } + + if (phba->cfg_nvme_io_channel) { + phba->sli4_hba.nvme_cq = kcalloc(phba->cfg_nvme_io_channel, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.nvme_cq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6077 Failed allocate memory for " + "fast-path CQ record array\n"); + goto out_error; + } + + phba->sli4_hba.nvme_wq = kcalloc(phba->cfg_nvme_io_channel, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.nvme_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2581 Failed allocate memory for " + "fast-path NVME WQ record array\n"); + goto out_error; + } + + /* + * Since the first EQ can have multiple CQs associated with it, + * this array is used to quickly see if we have a NVME fast-path + * CQ match. + */ + phba->sli4_hba.nvme_cq_map = kcalloc(phba->cfg_nvme_io_channel, + sizeof(uint16_t), + GFP_KERNEL); + if (!phba->sli4_hba.nvme_cq_map) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6078 Failed allocate memory for " + "fast-path CQ map\n"); + goto out_error; + } + + if (phba->nvmet_support) { + phba->sli4_hba.nvmet_cqset = kcalloc( + phba->cfg_nvmet_mrq, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.nvmet_cqset) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3121 Fail allocate memory for " + "fast-path CQ set array\n"); + goto out_error; + } + phba->sli4_hba.nvmet_mrq_hdr = kcalloc( + phba->cfg_nvmet_mrq, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.nvmet_mrq_hdr) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3122 Fail allocate memory for " + "fast-path RQ set hdr array\n"); + goto out_error; + } + phba->sli4_hba.nvmet_mrq_data = kcalloc( + phba->cfg_nvmet_mrq, + sizeof(struct lpfc_queue *), + GFP_KERNEL); + if (!phba->sli4_hba.nvmet_mrq_data) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3124 Fail allocate memory for " + "fast-path RQ set data array\n"); + goto out_error; + } + } + } + + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); + + /* Create HBA Event Queues (EQs) */ + for (idx = 0; idx < io_channel; idx++) { + /* Create EQs */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.eq_esize, + phba->sli4_hba.eq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0497 Failed allocate EQ (%d)\n", idx); + goto out_error; + } + qdesc->qe_valid = 1; + phba->sli4_hba.hba_eq[idx] = qdesc; + } + + /* FCP and NVME io channels are not required to be balanced */ + + for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) + if (lpfc_alloc_fcp_wq_cq(phba, idx)) + goto out_error; + + for (idx = 0; idx < phba->cfg_nvme_io_channel; idx++) + if (lpfc_alloc_nvme_wq_cq(phba, idx)) + goto out_error; + + if (phba->nvmet_support) { + for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { + qdesc = lpfc_sli4_queue_alloc(phba, + LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.cq_esize, + phba->sli4_hba.cq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3142 Failed allocate NVME " + "CQ Set (%d)\n", idx); + goto out_error; + } + qdesc->qe_valid = 1; + phba->sli4_hba.nvmet_cqset[idx] = qdesc; + } + } + + /* + * Create Slow Path Completion Queues (CQs) + */ + + /* Create slow-path Mailbox Command Complete Queue */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.cq_esize, + phba->sli4_hba.cq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0500 Failed allocate slow-path mailbox CQ\n"); + goto out_error; + } + qdesc->qe_valid = 1; + phba->sli4_hba.mbx_cq = qdesc; + + /* Create slow-path ELS Complete Queue */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.cq_esize, + phba->sli4_hba.cq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0501 Failed allocate slow-path ELS CQ\n"); + goto out_error; + } + qdesc->qe_valid = 1; + phba->sli4_hba.els_cq = qdesc; + + + /* + * Create Slow Path Work Queues (WQs) + */ + + /* Create Mailbox Command Queue */ + + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.mq_esize, + phba->sli4_hba.mq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0505 Failed allocate slow-path MQ\n"); + goto out_error; + } + phba->sli4_hba.mbx_wq = qdesc; + + /* + * Create ELS Work Queues + */ + + /* Create slow-path ELS Work Queue */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.wq_esize, + phba->sli4_hba.wq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0504 Failed allocate slow-path ELS WQ\n"); + goto out_error; + } + phba->sli4_hba.els_wq = qdesc; + list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + /* Create NVME LS Complete Queue */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.cq_esize, + phba->sli4_hba.cq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6079 Failed allocate NVME LS CQ\n"); + goto out_error; + } + qdesc->qe_valid = 1; + phba->sli4_hba.nvmels_cq = qdesc; + + /* Create NVME LS Work Queue */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.wq_esize, + phba->sli4_hba.wq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6080 Failed allocate NVME LS WQ\n"); + goto out_error; + } + phba->sli4_hba.nvmels_wq = qdesc; + list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); + } + + /* + * Create Receive Queue (RQ) + */ + + /* Create Receive Queue for header */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.rq_esize, + phba->sli4_hba.rq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0506 Failed allocate receive HRQ\n"); + goto out_error; + } + phba->sli4_hba.hdr_rq = qdesc; + + /* Create Receive Queue for data */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.rq_esize, + phba->sli4_hba.rq_ecount); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0507 Failed allocate receive DRQ\n"); + goto out_error; + } + phba->sli4_hba.dat_rq = qdesc; + + if (phba->nvmet_support) { + for (idx = 0; idx < phba->cfg_nvmet_mrq; idx++) { + /* Create NVMET Receive Queue for header */ + qdesc = lpfc_sli4_queue_alloc(phba, + LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.rq_esize, + LPFC_NVMET_RQE_DEF_COUNT); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3146 Failed allocate " + "receive HRQ\n"); + goto out_error; + } + phba->sli4_hba.nvmet_mrq_hdr[idx] = qdesc; + + /* Only needed for header of RQ pair */ + qdesc->rqbp = kzalloc(sizeof(struct lpfc_rqb), + GFP_KERNEL); + if (qdesc->rqbp == NULL) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6131 Failed allocate " + "Header RQBP\n"); + goto out_error; + } + + /* Put list in known state in case driver load fails. */ + INIT_LIST_HEAD(&qdesc->rqbp->rqb_buffer_list); + + /* Create NVMET Receive Queue for data */ + qdesc = lpfc_sli4_queue_alloc(phba, + LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.rq_esize, + LPFC_NVMET_RQE_DEF_COUNT); + if (!qdesc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3156 Failed allocate " + "receive DRQ\n"); + goto out_error; + } + phba->sli4_hba.nvmet_mrq_data[idx] = qdesc; + } + } + + /* Create the Queues needed for Flash Optimized Fabric operations */ + if (phba->cfg_fof) + lpfc_fof_queue_create(phba); + return 0; + +out_error: + lpfc_sli4_queue_destroy(phba); + return -ENOMEM; +} + +static inline void +__lpfc_sli4_release_queue(struct lpfc_queue **qp) +{ + if (*qp != NULL) { + lpfc_sli4_queue_free(*qp); + *qp = NULL; + } +} + +static inline void +lpfc_sli4_release_queues(struct lpfc_queue ***qs, int max) +{ + int idx; + + if (*qs == NULL) + return; + + for (idx = 0; idx < max; idx++) + __lpfc_sli4_release_queue(&(*qs)[idx]); + + kfree(*qs); + *qs = NULL; +} + +static inline void +lpfc_sli4_release_queue_map(uint16_t **qmap) +{ + if (*qmap != NULL) { + kfree(*qmap); + *qmap = NULL; + } +} + +/** + * lpfc_sli4_queue_destroy - Destroy all the SLI4 queues + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to release all the SLI4 queues with the FCoE HBA + * operation. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + * -EIO - The mailbox failed to complete successfully. + **/ +void +lpfc_sli4_queue_destroy(struct lpfc_hba *phba) +{ + if (phba->cfg_fof) + lpfc_fof_queue_destroy(phba); + + /* Release HBA eqs */ + lpfc_sli4_release_queues(&phba->sli4_hba.hba_eq, phba->io_channel_irqs); + + /* Release FCP cqs */ + lpfc_sli4_release_queues(&phba->sli4_hba.fcp_cq, + phba->cfg_fcp_io_channel); + + /* Release FCP wqs */ + lpfc_sli4_release_queues(&phba->sli4_hba.fcp_wq, + phba->cfg_fcp_io_channel); + + /* Release FCP CQ mapping array */ + lpfc_sli4_release_queue_map(&phba->sli4_hba.fcp_cq_map); + + /* Release NVME cqs */ + lpfc_sli4_release_queues(&phba->sli4_hba.nvme_cq, + phba->cfg_nvme_io_channel); + + /* Release NVME wqs */ + lpfc_sli4_release_queues(&phba->sli4_hba.nvme_wq, + phba->cfg_nvme_io_channel); + + /* Release NVME CQ mapping array */ + lpfc_sli4_release_queue_map(&phba->sli4_hba.nvme_cq_map); + + if (phba->nvmet_support) { + lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_cqset, + phba->cfg_nvmet_mrq); + + lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_hdr, + phba->cfg_nvmet_mrq); + lpfc_sli4_release_queues(&phba->sli4_hba.nvmet_mrq_data, + phba->cfg_nvmet_mrq); + } + + /* Release mailbox command work queue */ + __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_wq); + + /* Release ELS work queue */ + __lpfc_sli4_release_queue(&phba->sli4_hba.els_wq); + + /* Release ELS work queue */ + __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_wq); + + /* Release unsolicited receive queue */ + __lpfc_sli4_release_queue(&phba->sli4_hba.hdr_rq); + __lpfc_sli4_release_queue(&phba->sli4_hba.dat_rq); + + /* Release ELS complete queue */ + __lpfc_sli4_release_queue(&phba->sli4_hba.els_cq); + + /* Release NVME LS complete queue */ + __lpfc_sli4_release_queue(&phba->sli4_hba.nvmels_cq); + + /* Release mailbox command complete queue */ + __lpfc_sli4_release_queue(&phba->sli4_hba.mbx_cq); + + /* Everything on this list has been freed */ + INIT_LIST_HEAD(&phba->sli4_hba.lpfc_wq_list); +} + +int +lpfc_free_rq_buffer(struct lpfc_hba *phba, struct lpfc_queue *rq) +{ + struct lpfc_rqb *rqbp; + struct lpfc_dmabuf *h_buf; + struct rqb_dmabuf *rqb_buffer; + + rqbp = rq->rqbp; + while (!list_empty(&rqbp->rqb_buffer_list)) { + list_remove_head(&rqbp->rqb_buffer_list, h_buf, + struct lpfc_dmabuf, list); + + rqb_buffer = container_of(h_buf, struct rqb_dmabuf, hbuf); + (rqbp->rqb_free_buffer)(phba, rqb_buffer); + rqbp->buffer_count--; + } + return 1; +} + +static int +lpfc_create_wq_cq(struct lpfc_hba *phba, struct lpfc_queue *eq, + struct lpfc_queue *cq, struct lpfc_queue *wq, uint16_t *cq_map, + int qidx, uint32_t qtype) +{ + struct lpfc_sli_ring *pring; + int rc; + + if (!eq || !cq || !wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6085 Fast-path %s (%d) not allocated\n", + ((eq) ? ((cq) ? "WQ" : "CQ") : "EQ"), qidx); + return -ENOMEM; + } + + /* create the Cq first */ + rc = lpfc_cq_create(phba, cq, eq, + (qtype == LPFC_MBOX) ? LPFC_MCQ : LPFC_WCQ, qtype); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6086 Failed setup of CQ (%d), rc = 0x%x\n", + qidx, (uint32_t)rc); + return rc; + } + cq->chann = qidx; + + if (qtype != LPFC_MBOX) { + /* Setup nvme_cq_map for fast lookup */ + if (cq_map) + *cq_map = cq->queue_id; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "6087 CQ setup: cq[%d]-id=%d, parent eq[%d]-id=%d\n", + qidx, cq->queue_id, qidx, eq->queue_id); + + /* create the wq */ + rc = lpfc_wq_create(phba, wq, cq, qtype); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6123 Fail setup fastpath WQ (%d), rc = 0x%x\n", + qidx, (uint32_t)rc); + /* no need to tear down cq - caller will do so */ + return rc; + } + wq->chann = qidx; + + /* Bind this CQ/WQ to the NVME ring */ + pring = wq->pring; + pring->sli.sli4.wqp = (void *)wq; + cq->pring = pring; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2593 WQ setup: wq[%d]-id=%d assoc=%d, cq[%d]-id=%d\n", + qidx, wq->queue_id, wq->assoc_qid, qidx, cq->queue_id); + } else { + rc = lpfc_mq_create(phba, wq, cq, LPFC_MBOX); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0539 Failed setup of slow-path MQ: " + "rc = 0x%x\n", rc); + /* no need to tear down cq - caller will do so */ + return rc; + } + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2589 MBX MQ setup: wq-id=%d, parent cq-id=%d\n", + phba->sli4_hba.mbx_wq->queue_id, + phba->sli4_hba.mbx_cq->queue_id); + } + + return 0; +} + +/** + * lpfc_sli4_queue_setup - Set up all the SLI4 queues + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up all the SLI4 queues for the FCoE HBA + * operation. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + * -EIO - The mailbox failed to complete successfully. + **/ +int +lpfc_sli4_queue_setup(struct lpfc_hba *phba) +{ + uint32_t shdr_status, shdr_add_status; + union lpfc_sli4_cfg_shdr *shdr; + LPFC_MBOXQ_t *mboxq; + int qidx; + uint32_t length, io_channel; + int rc = -ENOMEM; + + /* Check for dual-ULP support */ + mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!mboxq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3249 Unable to allocate memory for " + "QUERY_FW_CFG mailbox command\n"); + return -ENOMEM; + } + length = (sizeof(struct lpfc_mbx_query_fw_config) - + sizeof(struct lpfc_sli4_cfg_mhdr)); + lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, + LPFC_MBOX_OPCODE_QUERY_FW_CFG, + length, LPFC_SLI4_MBX_EMBED); + + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + + shdr = (union lpfc_sli4_cfg_shdr *) + &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; + shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); + shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response); + if (shdr_status || shdr_add_status || rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3250 QUERY_FW_CFG mailbox failed with status " + "x%x add_status x%x, mbx status x%x\n", + shdr_status, shdr_add_status, rc); + if (rc != MBX_TIMEOUT) + mempool_free(mboxq, phba->mbox_mem_pool); + rc = -ENXIO; + goto out_error; + } + + phba->sli4_hba.fw_func_mode = + mboxq->u.mqe.un.query_fw_cfg.rsp.function_mode; + phba->sli4_hba.ulp0_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp0_mode; + phba->sli4_hba.ulp1_mode = mboxq->u.mqe.un.query_fw_cfg.rsp.ulp1_mode; + phba->sli4_hba.physical_port = + mboxq->u.mqe.un.query_fw_cfg.rsp.physical_port; + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "3251 QUERY_FW_CFG: func_mode:x%x, ulp0_mode:x%x, " + "ulp1_mode:x%x\n", phba->sli4_hba.fw_func_mode, + phba->sli4_hba.ulp0_mode, phba->sli4_hba.ulp1_mode); + + if (rc != MBX_TIMEOUT) + mempool_free(mboxq, phba->mbox_mem_pool); + + /* + * Set up HBA Event Queues (EQs) + */ + io_channel = phba->io_channel_irqs; + + /* Set up HBA event queue */ + if (io_channel && !phba->sli4_hba.hba_eq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3147 Fast-path EQs not allocated\n"); + rc = -ENOMEM; + goto out_error; + } + for (qidx = 0; qidx < io_channel; qidx++) { + if (!phba->sli4_hba.hba_eq[qidx]) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0522 Fast-path EQ (%d) not " + "allocated\n", qidx); + rc = -ENOMEM; + goto out_destroy; + } + rc = lpfc_eq_create(phba, phba->sli4_hba.hba_eq[qidx], + phba->cfg_fcp_imax); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0523 Failed setup of fast-path EQ " + "(%d), rc = 0x%x\n", qidx, + (uint32_t)rc); + goto out_destroy; + } + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2584 HBA EQ setup: queue[%d]-id=%d\n", + qidx, phba->sli4_hba.hba_eq[qidx]->queue_id); + } + + if (phba->cfg_nvme_io_channel) { + if (!phba->sli4_hba.nvme_cq || !phba->sli4_hba.nvme_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6084 Fast-path NVME %s array not allocated\n", + (phba->sli4_hba.nvme_cq) ? "CQ" : "WQ"); + rc = -ENOMEM; + goto out_destroy; + } + + for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) { + rc = lpfc_create_wq_cq(phba, + phba->sli4_hba.hba_eq[ + qidx % io_channel], + phba->sli4_hba.nvme_cq[qidx], + phba->sli4_hba.nvme_wq[qidx], + &phba->sli4_hba.nvme_cq_map[qidx], + qidx, LPFC_NVME); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6123 Failed to setup fastpath " + "NVME WQ/CQ (%d), rc = 0x%x\n", + qidx, (uint32_t)rc); + goto out_destroy; + } + } + } + + if (phba->cfg_fcp_io_channel) { + /* Set up fast-path FCP Response Complete Queue */ + if (!phba->sli4_hba.fcp_cq || !phba->sli4_hba.fcp_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3148 Fast-path FCP %s array not allocated\n", + phba->sli4_hba.fcp_cq ? "WQ" : "CQ"); + rc = -ENOMEM; + goto out_destroy; + } + + for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) { + rc = lpfc_create_wq_cq(phba, + phba->sli4_hba.hba_eq[ + qidx % io_channel], + phba->sli4_hba.fcp_cq[qidx], + phba->sli4_hba.fcp_wq[qidx], + &phba->sli4_hba.fcp_cq_map[qidx], + qidx, LPFC_FCP); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0535 Failed to setup fastpath " + "FCP WQ/CQ (%d), rc = 0x%x\n", + qidx, (uint32_t)rc); + goto out_destroy; + } + } + } + + /* + * Set up Slow Path Complete Queues (CQs) + */ + + /* Set up slow-path MBOX CQ/MQ */ + + if (!phba->sli4_hba.mbx_cq || !phba->sli4_hba.mbx_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0528 %s not allocated\n", + phba->sli4_hba.mbx_cq ? + "Mailbox WQ" : "Mailbox CQ"); + rc = -ENOMEM; + goto out_destroy; + } + + rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], + phba->sli4_hba.mbx_cq, + phba->sli4_hba.mbx_wq, + NULL, 0, LPFC_MBOX); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0529 Failed setup of mailbox WQ/CQ: rc = 0x%x\n", + (uint32_t)rc); + goto out_destroy; + } + if (phba->nvmet_support) { + if (!phba->sli4_hba.nvmet_cqset) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3165 Fast-path NVME CQ Set " + "array not allocated\n"); + rc = -ENOMEM; + goto out_destroy; + } + if (phba->cfg_nvmet_mrq > 1) { + rc = lpfc_cq_create_set(phba, + phba->sli4_hba.nvmet_cqset, + phba->sli4_hba.hba_eq, + LPFC_WCQ, LPFC_NVMET); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3164 Failed setup of NVME CQ " + "Set, rc = 0x%x\n", + (uint32_t)rc); + goto out_destroy; + } + } else { + /* Set up NVMET Receive Complete Queue */ + rc = lpfc_cq_create(phba, phba->sli4_hba.nvmet_cqset[0], + phba->sli4_hba.hba_eq[0], + LPFC_WCQ, LPFC_NVMET); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6089 Failed setup NVMET CQ: " + "rc = 0x%x\n", (uint32_t)rc); + goto out_destroy; + } + phba->sli4_hba.nvmet_cqset[0]->chann = 0; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "6090 NVMET CQ setup: cq-id=%d, " + "parent eq-id=%d\n", + phba->sli4_hba.nvmet_cqset[0]->queue_id, + phba->sli4_hba.hba_eq[0]->queue_id); + } + } + + /* Set up slow-path ELS WQ/CQ */ + if (!phba->sli4_hba.els_cq || !phba->sli4_hba.els_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0530 ELS %s not allocated\n", + phba->sli4_hba.els_cq ? "WQ" : "CQ"); + rc = -ENOMEM; + goto out_destroy; + } + rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], + phba->sli4_hba.els_cq, + phba->sli4_hba.els_wq, + NULL, 0, LPFC_ELS); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0529 Failed setup of ELS WQ/CQ: rc = 0x%x\n", + (uint32_t)rc); + goto out_destroy; + } + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2590 ELS WQ setup: wq-id=%d, parent cq-id=%d\n", + phba->sli4_hba.els_wq->queue_id, + phba->sli4_hba.els_cq->queue_id); + + if (phba->cfg_nvme_io_channel) { + /* Set up NVME LS Complete Queue */ + if (!phba->sli4_hba.nvmels_cq || !phba->sli4_hba.nvmels_wq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6091 LS %s not allocated\n", + phba->sli4_hba.nvmels_cq ? "WQ" : "CQ"); + rc = -ENOMEM; + goto out_destroy; + } + rc = lpfc_create_wq_cq(phba, phba->sli4_hba.hba_eq[0], + phba->sli4_hba.nvmels_cq, + phba->sli4_hba.nvmels_wq, + NULL, 0, LPFC_NVME_LS); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0529 Failed setup of NVVME LS WQ/CQ: " + "rc = 0x%x\n", (uint32_t)rc); + goto out_destroy; + } + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "6096 ELS WQ setup: wq-id=%d, " + "parent cq-id=%d\n", + phba->sli4_hba.nvmels_wq->queue_id, + phba->sli4_hba.nvmels_cq->queue_id); + } + + /* + * Create NVMET Receive Queue (RQ) + */ + if (phba->nvmet_support) { + if ((!phba->sli4_hba.nvmet_cqset) || + (!phba->sli4_hba.nvmet_mrq_hdr) || + (!phba->sli4_hba.nvmet_mrq_data)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6130 MRQ CQ Queues not " + "allocated\n"); + rc = -ENOMEM; + goto out_destroy; + } + if (phba->cfg_nvmet_mrq > 1) { + rc = lpfc_mrq_create(phba, + phba->sli4_hba.nvmet_mrq_hdr, + phba->sli4_hba.nvmet_mrq_data, + phba->sli4_hba.nvmet_cqset, + LPFC_NVMET); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6098 Failed setup of NVMET " + "MRQ: rc = 0x%x\n", + (uint32_t)rc); + goto out_destroy; + } + + } else { + rc = lpfc_rq_create(phba, + phba->sli4_hba.nvmet_mrq_hdr[0], + phba->sli4_hba.nvmet_mrq_data[0], + phba->sli4_hba.nvmet_cqset[0], + LPFC_NVMET); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6057 Failed setup of NVMET " + "Receive Queue: rc = 0x%x\n", + (uint32_t)rc); + goto out_destroy; + } + + lpfc_printf_log( + phba, KERN_INFO, LOG_INIT, + "6099 NVMET RQ setup: hdr-rq-id=%d, " + "dat-rq-id=%d parent cq-id=%d\n", + phba->sli4_hba.nvmet_mrq_hdr[0]->queue_id, + phba->sli4_hba.nvmet_mrq_data[0]->queue_id, + phba->sli4_hba.nvmet_cqset[0]->queue_id); + + } + } + + if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0540 Receive Queue not allocated\n"); + rc = -ENOMEM; + goto out_destroy; + } + + rc = lpfc_rq_create(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq, + phba->sli4_hba.els_cq, LPFC_USOL); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0541 Failed setup of Receive Queue: " + "rc = 0x%x\n", (uint32_t)rc); + goto out_destroy; + } + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2592 USL RQ setup: hdr-rq-id=%d, dat-rq-id=%d " + "parent cq-id=%d\n", + phba->sli4_hba.hdr_rq->queue_id, + phba->sli4_hba.dat_rq->queue_id, + phba->sli4_hba.els_cq->queue_id); + + if (phba->cfg_fof) { + rc = lpfc_fof_queue_setup(phba); + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0549 Failed setup of FOF Queues: " + "rc = 0x%x\n", rc); + goto out_destroy; + } + } + + for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) + lpfc_modify_hba_eq_delay(phba, qidx, LPFC_MAX_EQ_DELAY_EQID_CNT, + phba->cfg_fcp_imax); + + return 0; + +out_destroy: + lpfc_sli4_queue_unset(phba); +out_error: + return rc; +} + +/** + * lpfc_sli4_queue_unset - Unset all the SLI4 queues + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unset all the SLI4 queues with the FCoE HBA + * operation. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + * -EIO - The mailbox failed to complete successfully. + **/ +void +lpfc_sli4_queue_unset(struct lpfc_hba *phba) +{ + int qidx; + + /* Unset the queues created for Flash Optimized Fabric operations */ + if (phba->cfg_fof) + lpfc_fof_queue_destroy(phba); + + /* Unset mailbox command work queue */ + if (phba->sli4_hba.mbx_wq) + lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq); + + /* Unset NVME LS work queue */ + if (phba->sli4_hba.nvmels_wq) + lpfc_wq_destroy(phba, phba->sli4_hba.nvmels_wq); + + /* Unset ELS work queue */ + if (phba->sli4_hba.els_wq) + lpfc_wq_destroy(phba, phba->sli4_hba.els_wq); + + /* Unset unsolicited receive queue */ + if (phba->sli4_hba.hdr_rq) + lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, + phba->sli4_hba.dat_rq); + + /* Unset FCP work queue */ + if (phba->sli4_hba.fcp_wq) + for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) + lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[qidx]); + + /* Unset NVME work queue */ + if (phba->sli4_hba.nvme_wq) { + for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) + lpfc_wq_destroy(phba, phba->sli4_hba.nvme_wq[qidx]); + } + + /* Unset mailbox command complete queue */ + if (phba->sli4_hba.mbx_cq) + lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq); + + /* Unset ELS complete queue */ + if (phba->sli4_hba.els_cq) + lpfc_cq_destroy(phba, phba->sli4_hba.els_cq); + + /* Unset NVME LS complete queue */ + if (phba->sli4_hba.nvmels_cq) + lpfc_cq_destroy(phba, phba->sli4_hba.nvmels_cq); + + /* Unset NVME response complete queue */ + if (phba->sli4_hba.nvme_cq) + for (qidx = 0; qidx < phba->cfg_nvme_io_channel; qidx++) + lpfc_cq_destroy(phba, phba->sli4_hba.nvme_cq[qidx]); + + if (phba->nvmet_support) { + /* Unset NVMET MRQ queue */ + if (phba->sli4_hba.nvmet_mrq_hdr) { + for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) + lpfc_rq_destroy( + phba, + phba->sli4_hba.nvmet_mrq_hdr[qidx], + phba->sli4_hba.nvmet_mrq_data[qidx]); + } + + /* Unset NVMET CQ Set complete queue */ + if (phba->sli4_hba.nvmet_cqset) { + for (qidx = 0; qidx < phba->cfg_nvmet_mrq; qidx++) + lpfc_cq_destroy( + phba, phba->sli4_hba.nvmet_cqset[qidx]); + } + } + + /* Unset FCP response complete queue */ + if (phba->sli4_hba.fcp_cq) + for (qidx = 0; qidx < phba->cfg_fcp_io_channel; qidx++) + lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[qidx]); + + /* Unset fast-path event queue */ + if (phba->sli4_hba.hba_eq) + for (qidx = 0; qidx < phba->io_channel_irqs; qidx++) + lpfc_eq_destroy(phba, phba->sli4_hba.hba_eq[qidx]); +} + +/** + * lpfc_sli4_cq_event_pool_create - Create completion-queue event free pool + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to allocate and set up a pool of completion queue + * events. The body of the completion queue event is a completion queue entry + * CQE. For now, this pool is used for the interrupt service routine to queue + * the following HBA completion queue events for the worker thread to process: + * - Mailbox asynchronous events + * - Receive queue completion unsolicited events + * Later, this can be used for all the slow-path events. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + **/ +static int +lpfc_sli4_cq_event_pool_create(struct lpfc_hba *phba) +{ + struct lpfc_cq_event *cq_event; + int i; + + for (i = 0; i < (4 * phba->sli4_hba.cq_ecount); i++) { + cq_event = kmalloc(sizeof(struct lpfc_cq_event), GFP_KERNEL); + if (!cq_event) + goto out_pool_create_fail; + list_add_tail(&cq_event->list, + &phba->sli4_hba.sp_cqe_event_pool); + } + return 0; + +out_pool_create_fail: + lpfc_sli4_cq_event_pool_destroy(phba); + return -ENOMEM; +} + +/** + * lpfc_sli4_cq_event_pool_destroy - Free completion-queue event free pool + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to free the pool of completion queue events at + * driver unload time. Note that, it is the responsibility of the driver + * cleanup routine to free all the outstanding completion-queue events + * allocated from this pool back into the pool before invoking this routine + * to destroy the pool. + **/ +static void +lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *phba) +{ + struct lpfc_cq_event *cq_event, *next_cq_event; + + list_for_each_entry_safe(cq_event, next_cq_event, + &phba->sli4_hba.sp_cqe_event_pool, list) { + list_del(&cq_event->list); + kfree(cq_event); + } +} + +/** + * __lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool + * @phba: pointer to lpfc hba data structure. + * + * This routine is the lock free version of the API invoked to allocate a + * completion-queue event from the free pool. + * + * Return: Pointer to the newly allocated completion-queue event if successful + * NULL otherwise. + **/ +struct lpfc_cq_event * +__lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) +{ + struct lpfc_cq_event *cq_event = NULL; + + list_remove_head(&phba->sli4_hba.sp_cqe_event_pool, cq_event, + struct lpfc_cq_event, list); + return cq_event; +} + +/** + * lpfc_sli4_cq_event_alloc - Allocate a completion-queue event from free pool + * @phba: pointer to lpfc hba data structure. + * + * This routine is the lock version of the API invoked to allocate a + * completion-queue event from the free pool. + * + * Return: Pointer to the newly allocated completion-queue event if successful + * NULL otherwise. + **/ +struct lpfc_cq_event * +lpfc_sli4_cq_event_alloc(struct lpfc_hba *phba) +{ + struct lpfc_cq_event *cq_event; + unsigned long iflags; + + spin_lock_irqsave(&phba->hbalock, iflags); + cq_event = __lpfc_sli4_cq_event_alloc(phba); + spin_unlock_irqrestore(&phba->hbalock, iflags); + return cq_event; +} + +/** + * __lpfc_sli4_cq_event_release - Release a completion-queue event to free pool + * @phba: pointer to lpfc hba data structure. + * @cq_event: pointer to the completion queue event to be freed. + * + * This routine is the lock free version of the API invoked to release a + * completion-queue event back into the free pool. + **/ +void +__lpfc_sli4_cq_event_release(struct lpfc_hba *phba, + struct lpfc_cq_event *cq_event) +{ + list_add_tail(&cq_event->list, &phba->sli4_hba.sp_cqe_event_pool); +} + +/** + * lpfc_sli4_cq_event_release - Release a completion-queue event to free pool + * @phba: pointer to lpfc hba data structure. + * @cq_event: pointer to the completion queue event to be freed. + * + * This routine is the lock version of the API invoked to release a + * completion-queue event back into the free pool. + **/ +void +lpfc_sli4_cq_event_release(struct lpfc_hba *phba, + struct lpfc_cq_event *cq_event) +{ + unsigned long iflags; + spin_lock_irqsave(&phba->hbalock, iflags); + __lpfc_sli4_cq_event_release(phba, cq_event); + spin_unlock_irqrestore(&phba->hbalock, iflags); +} + +/** + * lpfc_sli4_cq_event_release_all - Release all cq events to the free pool + * @phba: pointer to lpfc hba data structure. + * + * This routine is to free all the pending completion-queue events to the + * back into the free pool for device reset. + **/ +static void +lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) +{ + LIST_HEAD(cqelist); + struct lpfc_cq_event *cqe; + unsigned long iflags; + + /* Retrieve all the pending WCQEs from pending WCQE lists */ + spin_lock_irqsave(&phba->hbalock, iflags); + /* Pending FCP XRI abort events */ + list_splice_init(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue, + &cqelist); + /* Pending ELS XRI abort events */ + list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, + &cqelist); + /* Pending asynnc events */ + list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, + &cqelist); + spin_unlock_irqrestore(&phba->hbalock, iflags); + + while (!list_empty(&cqelist)) { + list_remove_head(&cqelist, cqe, struct lpfc_cq_event, list); + lpfc_sli4_cq_event_release(phba, cqe); + } +} + +/** + * lpfc_pci_function_reset - Reset pci function. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to request a PCI function reset. It will destroys + * all resources assigned to the PCI function which originates this request. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + * -EIO - The mailbox failed to complete successfully. + **/ +int +lpfc_pci_function_reset(struct lpfc_hba *phba) +{ + LPFC_MBOXQ_t *mboxq; + uint32_t rc = 0, if_type; + uint32_t shdr_status, shdr_add_status; + uint32_t rdy_chk; + uint32_t port_reset = 0; + union lpfc_sli4_cfg_shdr *shdr; + struct lpfc_register reg_data; + uint16_t devid; + + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, + GFP_KERNEL); + if (!mboxq) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0494 Unable to allocate memory for " + "issuing SLI_FUNCTION_RESET mailbox " + "command\n"); + return -ENOMEM; + } + + /* Setup PCI function reset mailbox-ioctl command */ + lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, + LPFC_MBOX_OPCODE_FUNCTION_RESET, 0, + LPFC_SLI4_MBX_EMBED); + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + shdr = (union lpfc_sli4_cfg_shdr *) + &mboxq->u.mqe.un.sli4_config.header.cfg_shdr; + shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response); + shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, + &shdr->response); + if (rc != MBX_TIMEOUT) + mempool_free(mboxq, phba->mbox_mem_pool); + if (shdr_status || shdr_add_status || rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0495 SLI_FUNCTION_RESET mailbox " + "failed with status x%x add_status x%x," + " mbx status x%x\n", + shdr_status, shdr_add_status, rc); + rc = -ENXIO; + } + break; + case LPFC_SLI_INTF_IF_TYPE_2: + case LPFC_SLI_INTF_IF_TYPE_6: +wait: + /* + * Poll the Port Status Register and wait for RDY for + * up to 30 seconds. If the port doesn't respond, treat + * it as an error. + */ + for (rdy_chk = 0; rdy_chk < 1500; rdy_chk++) { + if (lpfc_readl(phba->sli4_hba.u.if_type2. + STATUSregaddr, ®_data.word0)) { + rc = -ENODEV; + goto out; + } + if (bf_get(lpfc_sliport_status_rdy, ®_data)) + break; + msleep(20); + } + + if (!bf_get(lpfc_sliport_status_rdy, ®_data)) { + phba->work_status[0] = readl( + phba->sli4_hba.u.if_type2.ERR1regaddr); + phba->work_status[1] = readl( + phba->sli4_hba.u.if_type2.ERR2regaddr); + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2890 Port not ready, port status reg " + "0x%x error 1=0x%x, error 2=0x%x\n", + reg_data.word0, + phba->work_status[0], + phba->work_status[1]); + rc = -ENODEV; + goto out; + } + + if (!port_reset) { + /* + * Reset the port now + */ + reg_data.word0 = 0; + bf_set(lpfc_sliport_ctrl_end, ®_data, + LPFC_SLIPORT_LITTLE_ENDIAN); + bf_set(lpfc_sliport_ctrl_ip, ®_data, + LPFC_SLIPORT_INIT_PORT); + writel(reg_data.word0, phba->sli4_hba.u.if_type2. + CTRLregaddr); + /* flush */ + pci_read_config_word(phba->pcidev, + PCI_DEVICE_ID, &devid); + + port_reset = 1; + msleep(20); + goto wait; + } else if (bf_get(lpfc_sliport_status_rn, ®_data)) { + rc = -ENODEV; + goto out; + } + break; + + case LPFC_SLI_INTF_IF_TYPE_1: + default: + break; + } + +out: + /* Catch the not-ready port failure after a port reset. */ + if (rc) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3317 HBA not functional: IP Reset Failed " + "try: echo fw_reset > board_mode\n"); + rc = -ENODEV; + } + + return rc; +} + +/** + * lpfc_sli4_pci_mem_setup - Setup SLI4 HBA PCI memory space. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up the PCI device memory space for device + * with SLI-4 interface spec. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_sli4_pci_mem_setup(struct lpfc_hba *phba) +{ + struct pci_dev *pdev; + unsigned long bar0map_len, bar1map_len, bar2map_len; + int error = -ENODEV; + uint32_t if_type; + + /* Obtain PCI device reference */ + if (!phba->pcidev) + return error; + else + pdev = phba->pcidev; + + /* Set the device DMA mask size */ + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(64)) != 0) { + if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) != 0 + || pci_set_consistent_dma_mask(pdev,DMA_BIT_MASK(32)) != 0) { + return error; + } + } + + /* + * The BARs and register set definitions and offset locations are + * dependent on the if_type. + */ + if (pci_read_config_dword(pdev, LPFC_SLI_INTF, + &phba->sli4_hba.sli_intf.word0)) { + return error; + } + + /* There is no SLI3 failback for SLI4 devices. */ + if (bf_get(lpfc_sli_intf_valid, &phba->sli4_hba.sli_intf) != + LPFC_SLI_INTF_VALID) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2894 SLI_INTF reg contents invalid " + "sli_intf reg 0x%x\n", + phba->sli4_hba.sli_intf.word0); + return error; + } + + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + /* + * Get the bus address of SLI4 device Bar regions and the + * number of bytes required by each mapping. The mapping of the + * particular PCI BARs regions is dependent on the type of + * SLI4 device. + */ + if (pci_resource_start(pdev, PCI_64BIT_BAR0)) { + phba->pci_bar0_map = pci_resource_start(pdev, PCI_64BIT_BAR0); + bar0map_len = pci_resource_len(pdev, PCI_64BIT_BAR0); + + /* + * Map SLI4 PCI Config Space Register base to a kernel virtual + * addr + */ + phba->sli4_hba.conf_regs_memmap_p = + ioremap(phba->pci_bar0_map, bar0map_len); + if (!phba->sli4_hba.conf_regs_memmap_p) { + dev_printk(KERN_ERR, &pdev->dev, + "ioremap failed for SLI4 PCI config " + "registers.\n"); + goto out; + } + phba->pci_bar0_memmap_p = phba->sli4_hba.conf_regs_memmap_p; + /* Set up BAR0 PCI config space register memory map */ + lpfc_sli4_bar0_register_memmap(phba, if_type); + } else { + phba->pci_bar0_map = pci_resource_start(pdev, 1); + bar0map_len = pci_resource_len(pdev, 1); + if (if_type >= LPFC_SLI_INTF_IF_TYPE_2) { + dev_printk(KERN_ERR, &pdev->dev, + "FATAL - No BAR0 mapping for SLI4, if_type 2\n"); + goto out; + } + phba->sli4_hba.conf_regs_memmap_p = + ioremap(phba->pci_bar0_map, bar0map_len); + if (!phba->sli4_hba.conf_regs_memmap_p) { + dev_printk(KERN_ERR, &pdev->dev, + "ioremap failed for SLI4 PCI config " + "registers.\n"); + goto out; + } + lpfc_sli4_bar0_register_memmap(phba, if_type); + } + + if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { + if (pci_resource_start(pdev, PCI_64BIT_BAR2)) { + /* + * Map SLI4 if type 0 HBA Control Register base to a + * kernel virtual address and setup the registers. + */ + phba->pci_bar1_map = pci_resource_start(pdev, + PCI_64BIT_BAR2); + bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); + phba->sli4_hba.ctrl_regs_memmap_p = + ioremap(phba->pci_bar1_map, + bar1map_len); + if (!phba->sli4_hba.ctrl_regs_memmap_p) { + dev_err(&pdev->dev, + "ioremap failed for SLI4 HBA " + "control registers.\n"); + error = -ENOMEM; + goto out_iounmap_conf; + } + phba->pci_bar2_memmap_p = + phba->sli4_hba.ctrl_regs_memmap_p; + lpfc_sli4_bar1_register_memmap(phba, if_type); + } else { + error = -ENOMEM; + goto out_iounmap_conf; + } + } + + if ((if_type == LPFC_SLI_INTF_IF_TYPE_6) && + (pci_resource_start(pdev, PCI_64BIT_BAR2))) { + /* + * Map SLI4 if type 6 HBA Doorbell Register base to a kernel + * virtual address and setup the registers. + */ + phba->pci_bar1_map = pci_resource_start(pdev, PCI_64BIT_BAR2); + bar1map_len = pci_resource_len(pdev, PCI_64BIT_BAR2); + phba->sli4_hba.drbl_regs_memmap_p = + ioremap(phba->pci_bar1_map, bar1map_len); + if (!phba->sli4_hba.drbl_regs_memmap_p) { + dev_err(&pdev->dev, + "ioremap failed for SLI4 HBA doorbell registers.\n"); + goto out_iounmap_conf; + } + phba->pci_bar2_memmap_p = phba->sli4_hba.drbl_regs_memmap_p; + lpfc_sli4_bar1_register_memmap(phba, if_type); + } + + if (if_type == LPFC_SLI_INTF_IF_TYPE_0) { + if (pci_resource_start(pdev, PCI_64BIT_BAR4)) { + /* + * Map SLI4 if type 0 HBA Doorbell Register base to + * a kernel virtual address and setup the registers. + */ + phba->pci_bar2_map = pci_resource_start(pdev, + PCI_64BIT_BAR4); + bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); + phba->sli4_hba.drbl_regs_memmap_p = + ioremap(phba->pci_bar2_map, + bar2map_len); + if (!phba->sli4_hba.drbl_regs_memmap_p) { + dev_err(&pdev->dev, + "ioremap failed for SLI4 HBA" + " doorbell registers.\n"); + error = -ENOMEM; + goto out_iounmap_ctrl; + } + phba->pci_bar4_memmap_p = + phba->sli4_hba.drbl_regs_memmap_p; + error = lpfc_sli4_bar2_register_memmap(phba, LPFC_VF0); + if (error) + goto out_iounmap_all; + } else { + error = -ENOMEM; + goto out_iounmap_all; + } + } + + if (if_type == LPFC_SLI_INTF_IF_TYPE_6 && + pci_resource_start(pdev, PCI_64BIT_BAR4)) { + /* + * Map SLI4 if type 6 HBA DPP Register base to a kernel + * virtual address and setup the registers. + */ + phba->pci_bar2_map = pci_resource_start(pdev, PCI_64BIT_BAR4); + bar2map_len = pci_resource_len(pdev, PCI_64BIT_BAR4); + phba->sli4_hba.dpp_regs_memmap_p = + ioremap(phba->pci_bar2_map, bar2map_len); + if (!phba->sli4_hba.dpp_regs_memmap_p) { + dev_err(&pdev->dev, + "ioremap failed for SLI4 HBA dpp registers.\n"); + goto out_iounmap_ctrl; + } + phba->pci_bar4_memmap_p = phba->sli4_hba.dpp_regs_memmap_p; + } + + /* Set up the EQ/CQ register handeling functions now */ + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + case LPFC_SLI_INTF_IF_TYPE_2: + phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_eq_clr_intr; + phba->sli4_hba.sli4_eq_release = lpfc_sli4_eq_release; + phba->sli4_hba.sli4_cq_release = lpfc_sli4_cq_release; + break; + case LPFC_SLI_INTF_IF_TYPE_6: + phba->sli4_hba.sli4_eq_clr_intr = lpfc_sli4_if6_eq_clr_intr; + phba->sli4_hba.sli4_eq_release = lpfc_sli4_if6_eq_release; + phba->sli4_hba.sli4_cq_release = lpfc_sli4_if6_cq_release; + break; + default: + break; + } + + return 0; + +out_iounmap_all: + iounmap(phba->sli4_hba.drbl_regs_memmap_p); +out_iounmap_ctrl: + iounmap(phba->sli4_hba.ctrl_regs_memmap_p); +out_iounmap_conf: + iounmap(phba->sli4_hba.conf_regs_memmap_p); +out: + return error; +} + +/** + * lpfc_sli4_pci_mem_unset - Unset SLI4 HBA PCI memory space. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unset the PCI device memory space for device + * with SLI-4 interface spec. + **/ +static void +lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba) +{ + uint32_t if_type; + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + + switch (if_type) { + case LPFC_SLI_INTF_IF_TYPE_0: + iounmap(phba->sli4_hba.drbl_regs_memmap_p); + iounmap(phba->sli4_hba.ctrl_regs_memmap_p); + iounmap(phba->sli4_hba.conf_regs_memmap_p); + break; + case LPFC_SLI_INTF_IF_TYPE_2: + iounmap(phba->sli4_hba.conf_regs_memmap_p); + break; + case LPFC_SLI_INTF_IF_TYPE_6: + iounmap(phba->sli4_hba.drbl_regs_memmap_p); + iounmap(phba->sli4_hba.conf_regs_memmap_p); + break; + case LPFC_SLI_INTF_IF_TYPE_1: + default: + dev_printk(KERN_ERR, &phba->pcidev->dev, + "FATAL - unsupported SLI4 interface type - %d\n", + if_type); + break; + } +} + +/** + * lpfc_sli_enable_msix - Enable MSI-X interrupt mode on SLI-3 device + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable the MSI-X interrupt vectors to device + * with SLI-3 interface specs. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_sli_enable_msix(struct lpfc_hba *phba) +{ + int rc; + LPFC_MBOXQ_t *pmb; + + /* Set up MSI-X multi-message vectors */ + rc = pci_alloc_irq_vectors(phba->pcidev, + LPFC_MSIX_VECTORS, LPFC_MSIX_VECTORS, PCI_IRQ_MSIX); + if (rc < 0) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0420 PCI enable MSI-X failed (%d)\n", rc); + goto vec_fail_out; + } + + /* + * Assign MSI-X vectors to interrupt handlers + */ + + /* vector-0 is associated to slow-path handler */ + rc = request_irq(pci_irq_vector(phba->pcidev, 0), + &lpfc_sli_sp_intr_handler, 0, + LPFC_SP_DRIVER_HANDLER_NAME, phba); + if (rc) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0421 MSI-X slow-path request_irq failed " + "(%d)\n", rc); + goto msi_fail_out; + } + + /* vector-1 is associated to fast-path handler */ + rc = request_irq(pci_irq_vector(phba->pcidev, 1), + &lpfc_sli_fp_intr_handler, 0, + LPFC_FP_DRIVER_HANDLER_NAME, phba); + + if (rc) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0429 MSI-X fast-path request_irq failed " + "(%d)\n", rc); + goto irq_fail_out; + } + + /* + * Configure HBA MSI-X attention conditions to messages + */ + pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + + if (!pmb) { + rc = -ENOMEM; + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0474 Unable to allocate memory for issuing " + "MBOX_CONFIG_MSI command\n"); + goto mem_fail_out; + } + rc = lpfc_config_msi(phba, pmb); + if (rc) + goto mbx_fail_out; + rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, + "0351 Config MSI mailbox command failed, " + "mbxCmd x%x, mbxStatus x%x\n", + pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus); + goto mbx_fail_out; + } + + /* Free memory allocated for mailbox command */ + mempool_free(pmb, phba->mbox_mem_pool); + return rc; + +mbx_fail_out: + /* Free memory allocated for mailbox command */ + mempool_free(pmb, phba->mbox_mem_pool); + +mem_fail_out: + /* free the irq already requested */ + free_irq(pci_irq_vector(phba->pcidev, 1), phba); + +irq_fail_out: + /* free the irq already requested */ + free_irq(pci_irq_vector(phba->pcidev, 0), phba); + +msi_fail_out: + /* Unconfigure MSI-X capability structure */ + pci_free_irq_vectors(phba->pcidev); + +vec_fail_out: + return rc; +} + +/** + * lpfc_sli_enable_msi - Enable MSI interrupt mode on SLI-3 device. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable the MSI interrupt mode to device with + * SLI-3 interface spec. The kernel function pci_enable_msi() is called to + * enable the MSI vector. The device driver is responsible for calling the + * request_irq() to register MSI vector with a interrupt the handler, which + * is done in this function. + * + * Return codes + * 0 - successful + * other values - error + */ +static int +lpfc_sli_enable_msi(struct lpfc_hba *phba) +{ + int rc; + + rc = pci_enable_msi(phba->pcidev); + if (!rc) + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0462 PCI enable MSI mode success.\n"); + else { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0471 PCI enable MSI mode failed (%d)\n", rc); + return rc; + } + + rc = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, + 0, LPFC_DRIVER_NAME, phba); + if (rc) { + pci_disable_msi(phba->pcidev); + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0478 MSI request_irq failed (%d)\n", rc); + } + return rc; +} + +/** + * lpfc_sli_enable_intr - Enable device interrupt to SLI-3 device. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable device interrupt and associate driver's + * interrupt handler(s) to interrupt vector(s) to device with SLI-3 interface + * spec. Depends on the interrupt mode configured to the driver, the driver + * will try to fallback from the configured interrupt mode to an interrupt + * mode which is supported by the platform, kernel, and device in the order + * of: + * MSI-X -> MSI -> IRQ. + * + * Return codes + * 0 - successful + * other values - error + **/ +static uint32_t +lpfc_sli_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) +{ + uint32_t intr_mode = LPFC_INTR_ERROR; + int retval; + + if (cfg_mode == 2) { + /* Need to issue conf_port mbox cmd before conf_msi mbox cmd */ + retval = lpfc_sli_config_port(phba, LPFC_SLI_REV3); + if (!retval) { + /* Now, try to enable MSI-X interrupt mode */ + retval = lpfc_sli_enable_msix(phba); + if (!retval) { + /* Indicate initialization to MSI-X mode */ + phba->intr_type = MSIX; + intr_mode = 2; + } + } + } + + /* Fallback to MSI if MSI-X initialization failed */ + if (cfg_mode >= 1 && phba->intr_type == NONE) { + retval = lpfc_sli_enable_msi(phba); + if (!retval) { + /* Indicate initialization to MSI mode */ + phba->intr_type = MSI; + intr_mode = 1; + } + } + + /* Fallback to INTx if both MSI-X/MSI initalization failed */ + if (phba->intr_type == NONE) { + retval = request_irq(phba->pcidev->irq, lpfc_sli_intr_handler, + IRQF_SHARED, LPFC_DRIVER_NAME, phba); + if (!retval) { + /* Indicate initialization to INTx mode */ + phba->intr_type = INTx; + intr_mode = 0; + } + } + return intr_mode; +} + +/** + * lpfc_sli_disable_intr - Disable device interrupt to SLI-3 device. + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to disable device interrupt and disassociate the + * driver's interrupt handler(s) from interrupt vector(s) to device with + * SLI-3 interface spec. Depending on the interrupt mode, the driver will + * release the interrupt vector(s) for the message signaled interrupt. + **/ +static void +lpfc_sli_disable_intr(struct lpfc_hba *phba) +{ + int nr_irqs, i; + + if (phba->intr_type == MSIX) + nr_irqs = LPFC_MSIX_VECTORS; + else + nr_irqs = 1; + + for (i = 0; i < nr_irqs; i++) + free_irq(pci_irq_vector(phba->pcidev, i), phba); + pci_free_irq_vectors(phba->pcidev); + + /* Reset interrupt management states */ + phba->intr_type = NONE; + phba->sli.slistat.sli_intr = 0; +} + +/** + * lpfc_cpu_affinity_check - Check vector CPU affinity mappings + * @phba: pointer to lpfc hba data structure. + * @vectors: number of msix vectors allocated. + * + * The routine will figure out the CPU affinity assignment for every + * MSI-X vector allocated for the HBA. The hba_eq_hdl will be updated + * with a pointer to the CPU mask that defines ALL the CPUs this vector + * can be associated with. If the vector can be unquely associated with + * a single CPU, that CPU will be recorded in hba_eq_hdl[index].cpu. + * In addition, the CPU to IO channel mapping will be calculated + * and the phba->sli4_hba.cpu_map array will reflect this. + */ +static void +lpfc_cpu_affinity_check(struct lpfc_hba *phba, int vectors) +{ + struct lpfc_vector_map_info *cpup; + int index = 0; + int vec = 0; + int cpu; +#ifdef CONFIG_X86 + struct cpuinfo_x86 *cpuinfo; +#endif + + /* Init cpu_map array */ + memset(phba->sli4_hba.cpu_map, 0xff, + (sizeof(struct lpfc_vector_map_info) * + phba->sli4_hba.num_present_cpu)); + + /* Update CPU map with physical id and core id of each CPU */ + cpup = phba->sli4_hba.cpu_map; + for (cpu = 0; cpu < phba->sli4_hba.num_present_cpu; cpu++) { +#ifdef CONFIG_X86 + cpuinfo = &cpu_data(cpu); + cpup->phys_id = cpuinfo->phys_proc_id; + cpup->core_id = cpuinfo->cpu_core_id; +#else + /* No distinction between CPUs for other platforms */ + cpup->phys_id = 0; + cpup->core_id = 0; +#endif + cpup->channel_id = index; /* For now round robin */ + cpup->irq = pci_irq_vector(phba->pcidev, vec); + vec++; + if (vec >= vectors) + vec = 0; + index++; + if (index >= phba->cfg_fcp_io_channel) + index = 0; + cpup++; + } +} + + +/** + * lpfc_sli4_enable_msix - Enable MSI-X interrupt mode to SLI-4 device + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable the MSI-X interrupt vectors to device + * with SLI-4 interface spec. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_sli4_enable_msix(struct lpfc_hba *phba) +{ + int vectors, rc, index; + char *name; + + /* Set up MSI-X multi-message vectors */ + vectors = phba->io_channel_irqs; + if (phba->cfg_fof) + vectors++; + + rc = pci_alloc_irq_vectors(phba->pcidev, + (phba->nvmet_support) ? 1 : 2, + vectors, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY); + if (rc < 0) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0484 PCI enable MSI-X failed (%d)\n", rc); + goto vec_fail_out; + } + vectors = rc; + + /* Assign MSI-X vectors to interrupt handlers */ + for (index = 0; index < vectors; index++) { + name = phba->sli4_hba.hba_eq_hdl[index].handler_name; + memset(name, 0, LPFC_SLI4_HANDLER_NAME_SZ); + snprintf(name, LPFC_SLI4_HANDLER_NAME_SZ, + LPFC_DRIVER_HANDLER_NAME"%d", index); + + phba->sli4_hba.hba_eq_hdl[index].idx = index; + phba->sli4_hba.hba_eq_hdl[index].phba = phba; + atomic_set(&phba->sli4_hba.hba_eq_hdl[index].hba_eq_in_use, 1); + if (phba->cfg_fof && (index == (vectors - 1))) + rc = request_irq(pci_irq_vector(phba->pcidev, index), + &lpfc_sli4_fof_intr_handler, 0, + name, + &phba->sli4_hba.hba_eq_hdl[index]); + else + rc = request_irq(pci_irq_vector(phba->pcidev, index), + &lpfc_sli4_hba_intr_handler, 0, + name, + &phba->sli4_hba.hba_eq_hdl[index]); + if (rc) { + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0486 MSI-X fast-path (%d) " + "request_irq failed (%d)\n", index, rc); + goto cfg_fail_out; + } + } + + if (phba->cfg_fof) + vectors--; + + if (vectors != phba->io_channel_irqs) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3238 Reducing IO channels to match number of " + "MSI-X vectors, requested %d got %d\n", + phba->io_channel_irqs, vectors); + if (phba->cfg_fcp_io_channel > vectors) + phba->cfg_fcp_io_channel = vectors; + if (phba->cfg_nvme_io_channel > vectors) + phba->cfg_nvme_io_channel = vectors; + if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) + phba->io_channel_irqs = phba->cfg_fcp_io_channel; + else + phba->io_channel_irqs = phba->cfg_nvme_io_channel; + } + lpfc_cpu_affinity_check(phba, vectors); + + return rc; + +cfg_fail_out: + /* free the irq already requested */ + for (--index; index >= 0; index--) + free_irq(pci_irq_vector(phba->pcidev, index), + &phba->sli4_hba.hba_eq_hdl[index]); + + /* Unconfigure MSI-X capability structure */ + pci_free_irq_vectors(phba->pcidev); + +vec_fail_out: + return rc; +} + +/** + * lpfc_sli4_enable_msi - Enable MSI interrupt mode to SLI-4 device + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable the MSI interrupt mode to device with + * SLI-4 interface spec. The kernel function pci_enable_msi() is called + * to enable the MSI vector. The device driver is responsible for calling + * the request_irq() to register MSI vector with a interrupt the handler, + * which is done in this function. + * + * Return codes + * 0 - successful + * other values - error + **/ +static int +lpfc_sli4_enable_msi(struct lpfc_hba *phba) +{ + int rc, index; + + rc = pci_enable_msi(phba->pcidev); + if (!rc) + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0487 PCI enable MSI mode success.\n"); + else { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0488 PCI enable MSI mode failed (%d)\n", rc); + return rc; + } + + rc = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, + 0, LPFC_DRIVER_NAME, phba); + if (rc) { + pci_disable_msi(phba->pcidev); + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0490 MSI request_irq failed (%d)\n", rc); + return rc; + } + + for (index = 0; index < phba->io_channel_irqs; index++) { + phba->sli4_hba.hba_eq_hdl[index].idx = index; + phba->sli4_hba.hba_eq_hdl[index].phba = phba; + } + + if (phba->cfg_fof) { + phba->sli4_hba.hba_eq_hdl[index].idx = index; + phba->sli4_hba.hba_eq_hdl[index].phba = phba; + } + return 0; +} + +/** + * lpfc_sli4_enable_intr - Enable device interrupt to SLI-4 device + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to enable device interrupt and associate driver's + * interrupt handler(s) to interrupt vector(s) to device with SLI-4 + * interface spec. Depends on the interrupt mode configured to the driver, + * the driver will try to fallback from the configured interrupt mode to an + * interrupt mode which is supported by the platform, kernel, and device in + * the order of: + * MSI-X -> MSI -> IRQ. + * + * Return codes + * 0 - successful + * other values - error + **/ +static uint32_t +lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode) +{ + uint32_t intr_mode = LPFC_INTR_ERROR; + int retval, idx; + + if (cfg_mode == 2) { + /* Preparation before conf_msi mbox cmd */ + retval = 0; + if (!retval) { + /* Now, try to enable MSI-X interrupt mode */ + retval = lpfc_sli4_enable_msix(phba); + if (!retval) { + /* Indicate initialization to MSI-X mode */ + phba->intr_type = MSIX; + intr_mode = 2; + } + } + } + + /* Fallback to MSI if MSI-X initialization failed */ + if (cfg_mode >= 1 && phba->intr_type == NONE) { + retval = lpfc_sli4_enable_msi(phba); + if (!retval) { + /* Indicate initialization to MSI mode */ + phba->intr_type = MSI; + intr_mode = 1; + } + } + + /* Fallback to INTx if both MSI-X/MSI initalization failed */ + if (phba->intr_type == NONE) { + retval = request_irq(phba->pcidev->irq, lpfc_sli4_intr_handler, + IRQF_SHARED, LPFC_DRIVER_NAME, phba); + if (!retval) { + struct lpfc_hba_eq_hdl *eqhdl; + + /* Indicate initialization to INTx mode */ + phba->intr_type = INTx; + intr_mode = 0; + + for (idx = 0; idx < phba->io_channel_irqs; idx++) { + eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; + eqhdl->idx = idx; + eqhdl->phba = phba; + atomic_set(&eqhdl->hba_eq_in_use, 1); + } + if (phba->cfg_fof) { + eqhdl = &phba->sli4_hba.hba_eq_hdl[idx]; + eqhdl->idx = idx; + eqhdl->phba = phba; + atomic_set(&eqhdl->hba_eq_in_use, 1); + } + } + } + return intr_mode; +} + +/** + * lpfc_sli4_disable_intr - Disable device interrupt to SLI-4 device + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to disable device interrupt and disassociate + * the driver's interrupt handler(s) from interrupt vector(s) to device + * with SLI-4 interface spec. Depending on the interrupt mode, the driver + * will release the interrupt vector(s) for the message signaled interrupt. + **/ +static void +lpfc_sli4_disable_intr(struct lpfc_hba *phba) +{ + /* Disable the currently initialized interrupt mode */ + if (phba->intr_type == MSIX) { + int index; + + /* Free up MSI-X multi-message vectors */ + for (index = 0; index < phba->io_channel_irqs; index++) + free_irq(pci_irq_vector(phba->pcidev, index), + &phba->sli4_hba.hba_eq_hdl[index]); + + if (phba->cfg_fof) + free_irq(pci_irq_vector(phba->pcidev, index), + &phba->sli4_hba.hba_eq_hdl[index]); + } else { + free_irq(phba->pcidev->irq, phba); + } + + pci_free_irq_vectors(phba->pcidev); + + /* Reset interrupt management states */ + phba->intr_type = NONE; + phba->sli.slistat.sli_intr = 0; +} + +/** + * lpfc_unset_hba - Unset SLI3 hba device initialization + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to unset the HBA device initialization steps to + * a device with SLI-3 interface spec. + **/ +static void +lpfc_unset_hba(struct lpfc_hba *phba) +{ + struct lpfc_vport *vport = phba->pport; + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + + spin_lock_irq(shost->host_lock); + vport->load_flag |= FC_UNLOADING; + spin_unlock_irq(shost->host_lock); + + kfree(phba->vpi_bmask); + kfree(phba->vpi_ids); + + lpfc_stop_hba_timers(phba); + + phba->pport->work_port_events = 0; + + lpfc_sli_hba_down(phba); + + lpfc_sli_brdrestart(phba); + + lpfc_sli_disable_intr(phba); + + return; +} + +/** + * lpfc_sli4_xri_exchange_busy_wait - Wait for device XRI exchange busy + * @phba: Pointer to HBA context object. + * + * This function is called in the SLI4 code path to wait for completion + * of device's XRIs exchange busy. It will check the XRI exchange busy + * on outstanding FCP and ELS I/Os every 10ms for up to 10 seconds; after + * that, it will check the XRI exchange busy on outstanding FCP and ELS + * I/Os every 30 seconds, log error message, and wait forever. Only when + * all XRI exchange busy complete, the driver unload shall proceed with + * invoking the function reset ioctl mailbox command to the CNA and the + * the rest of the driver unload resource release. + **/ +static void +lpfc_sli4_xri_exchange_busy_wait(struct lpfc_hba *phba) +{ + int wait_time = 0; + int nvme_xri_cmpl = 1; + int nvmet_xri_cmpl = 1; + int fcp_xri_cmpl = 1; + int els_xri_cmpl = list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); + + /* Driver just aborted IOs during the hba_unset process. Pause + * here to give the HBA time to complete the IO and get entries + * into the abts lists. + */ + msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1 * 5); + + /* Wait for NVME pending IO to flush back to transport. */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) + lpfc_nvme_wait_for_io_drain(phba); + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) + fcp_xri_cmpl = + list_empty(&phba->sli4_hba.lpfc_abts_scsi_buf_list); + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + nvme_xri_cmpl = + list_empty(&phba->sli4_hba.lpfc_abts_nvme_buf_list); + nvmet_xri_cmpl = + list_empty(&phba->sli4_hba.lpfc_abts_nvmet_ctx_list); + } + + while (!fcp_xri_cmpl || !els_xri_cmpl || !nvme_xri_cmpl || + !nvmet_xri_cmpl) { + if (wait_time > LPFC_XRI_EXCH_BUSY_WAIT_TMO) { + if (!nvmet_xri_cmpl) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6424 NVMET XRI exchange busy " + "wait time: %d seconds.\n", + wait_time/1000); + if (!nvme_xri_cmpl) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6100 NVME XRI exchange busy " + "wait time: %d seconds.\n", + wait_time/1000); + if (!fcp_xri_cmpl) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2877 FCP XRI exchange busy " + "wait time: %d seconds.\n", + wait_time/1000); + if (!els_xri_cmpl) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2878 ELS XRI exchange busy " + "wait time: %d seconds.\n", + wait_time/1000); + msleep(LPFC_XRI_EXCH_BUSY_WAIT_T2); + wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T2; + } else { + msleep(LPFC_XRI_EXCH_BUSY_WAIT_T1); + wait_time += LPFC_XRI_EXCH_BUSY_WAIT_T1; + } + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + nvme_xri_cmpl = list_empty( + &phba->sli4_hba.lpfc_abts_nvme_buf_list); + nvmet_xri_cmpl = list_empty( + &phba->sli4_hba.lpfc_abts_nvmet_ctx_list); + } + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) + fcp_xri_cmpl = list_empty( + &phba->sli4_hba.lpfc_abts_scsi_buf_list); + + els_xri_cmpl = + list_empty(&phba->sli4_hba.lpfc_abts_els_sgl_list); + + } +} + +/** + * lpfc_sli4_hba_unset - Unset the fcoe hba + * @phba: Pointer to HBA context object. + * + * This function is called in the SLI4 code path to reset the HBA's FCoE + * function. The caller is not required to hold any lock. This routine + * issues PCI function reset mailbox command to reset the FCoE function. + * At the end of the function, it calls lpfc_hba_down_post function to + * free any pending commands. + **/ +static void +lpfc_sli4_hba_unset(struct lpfc_hba *phba) +{ + int wait_cnt = 0; + LPFC_MBOXQ_t *mboxq; + struct pci_dev *pdev = phba->pcidev; + + lpfc_stop_hba_timers(phba); + phba->sli4_hba.intr_enable = 0; + + /* + * Gracefully wait out the potential current outstanding asynchronous + * mailbox command. + */ + + /* First, block any pending async mailbox command from posted */ + spin_lock_irq(&phba->hbalock); + phba->sli.sli_flag |= LPFC_SLI_ASYNC_MBX_BLK; + spin_unlock_irq(&phba->hbalock); + /* Now, trying to wait it out if we can */ + while (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { + msleep(10); + if (++wait_cnt > LPFC_ACTIVE_MBOX_WAIT_CNT) + break; + } + /* Forcefully release the outstanding mailbox command if timed out */ + if (phba->sli.sli_flag & LPFC_SLI_MBOX_ACTIVE) { + spin_lock_irq(&phba->hbalock); + mboxq = phba->sli.mbox_active; + mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED; + __lpfc_mbox_cmpl_put(phba, mboxq); + phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; + phba->sli.mbox_active = NULL; + spin_unlock_irq(&phba->hbalock); + } + + /* Abort all iocbs associated with the hba */ + lpfc_sli_hba_iocb_abort(phba); + + /* Wait for completion of device XRI exchange busy */ + lpfc_sli4_xri_exchange_busy_wait(phba); + + /* Disable PCI subsystem interrupt */ + lpfc_sli4_disable_intr(phba); + + /* Disable SR-IOV if enabled */ + if (phba->cfg_sriov_nr_virtfn) + pci_disable_sriov(pdev); + + /* Stop kthread signal shall trigger work_done one more time */ + kthread_stop(phba->worker_thread); + + /* Unset the queues shared with the hardware then release all + * allocated resources. + */ + lpfc_sli4_queue_unset(phba); + lpfc_sli4_queue_destroy(phba); + + /* Reset SLI4 HBA FCoE function */ + lpfc_pci_function_reset(phba); + + /* Stop the SLI4 device port */ + phba->pport->work_port_events = 0; +} + +/** + * lpfc_get_sli4_parameters - Get the SLI4 Config PARAMETERS. + * @phba: Pointer to HBA context object. + * @mboxq: Pointer to the mailboxq memory for the mailbox command response. + * + * This function is called in the SLI4 code path to read the port's + * sli4 capabilities. + * + * This function may be be called from any context that can block-wait + * for the completion. The expectation is that this routine is called + * typically from probe_one or from the online routine. + **/ +int +lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) +{ + int rc; + struct lpfc_mqe *mqe = &mboxq->u.mqe; + struct lpfc_pc_sli4_params *sli4_params; + uint32_t mbox_tmo; + int length; + bool exp_wqcq_pages = true; + struct lpfc_sli4_parameters *mbx_sli4_parameters; + + /* + * By default, the driver assumes the SLI4 port requires RPI + * header postings. The SLI4_PARAM response will correct this + * assumption. + */ + phba->sli4_hba.rpi_hdrs_in_use = 1; + + /* Read the port's SLI4 Config Parameters */ + length = (sizeof(struct lpfc_mbx_get_sli4_parameters) - + sizeof(struct lpfc_sli4_cfg_mhdr)); + lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON, + LPFC_MBOX_OPCODE_GET_SLI4_PARAMETERS, + length, LPFC_SLI4_MBX_EMBED); + if (!phba->sli4_hba.intr_enable) + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + else { + mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq); + rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo); + } + if (unlikely(rc)) + return rc; + sli4_params = &phba->sli4_hba.pc_sli4_params; + mbx_sli4_parameters = &mqe->un.get_sli4_parameters.sli4_parameters; + sli4_params->if_type = bf_get(cfg_if_type, mbx_sli4_parameters); + sli4_params->sli_rev = bf_get(cfg_sli_rev, mbx_sli4_parameters); + sli4_params->sli_family = bf_get(cfg_sli_family, mbx_sli4_parameters); + sli4_params->featurelevel_1 = bf_get(cfg_sli_hint_1, + mbx_sli4_parameters); + sli4_params->featurelevel_2 = bf_get(cfg_sli_hint_2, + mbx_sli4_parameters); + if (bf_get(cfg_phwq, mbx_sli4_parameters)) + phba->sli3_options |= LPFC_SLI4_PHWQ_ENABLED; + else + phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED; + sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len; + sli4_params->loopbk_scope = bf_get(cfg_loopbk_scope, + mbx_sli4_parameters); + sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters); + sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters); + sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters); + sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters); + sli4_params->rqv = bf_get(cfg_rqv, mbx_sli4_parameters); + sli4_params->eqav = bf_get(cfg_eqav, mbx_sli4_parameters); + sli4_params->cqav = bf_get(cfg_cqav, mbx_sli4_parameters); + sli4_params->wqsize = bf_get(cfg_wqsize, mbx_sli4_parameters); + sli4_params->bv1s = bf_get(cfg_bv1s, mbx_sli4_parameters); + sli4_params->sgl_pages_max = bf_get(cfg_sgl_page_cnt, + mbx_sli4_parameters); + sli4_params->wqpcnt = bf_get(cfg_wqpcnt, mbx_sli4_parameters); + sli4_params->sgl_pp_align = bf_get(cfg_sgl_pp_align, + mbx_sli4_parameters); + phba->sli4_hba.extents_in_use = bf_get(cfg_ext, mbx_sli4_parameters); + phba->sli4_hba.rpi_hdrs_in_use = bf_get(cfg_hdrr, mbx_sli4_parameters); + phba->nvme_support = (bf_get(cfg_nvme, mbx_sli4_parameters) && + bf_get(cfg_xib, mbx_sli4_parameters)); + + if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) || + !phba->nvme_support) { + phba->nvme_support = 0; + phba->nvmet_support = 0; + phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_OFF; + phba->cfg_nvme_io_channel = 0; + phba->io_channel_irqs = phba->cfg_fcp_io_channel; + lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_NVME, + "6101 Disabling NVME support: " + "Not supported by firmware: %d %d\n", + bf_get(cfg_nvme, mbx_sli4_parameters), + bf_get(cfg_xib, mbx_sli4_parameters)); + + /* If firmware doesn't support NVME, just use SCSI support */ + if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) + return -ENODEV; + phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; + } + + /* Only embed PBDE for if_type 6, PBDE support requires xib be set */ + if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) != + LPFC_SLI_INTF_IF_TYPE_6) || (!bf_get(cfg_xib, mbx_sli4_parameters))) + phba->cfg_enable_pbde = 0; + + /* + * To support Suppress Response feature we must satisfy 3 conditions. + * lpfc_suppress_rsp module parameter must be set (default). + * In SLI4-Parameters Descriptor: + * Extended Inline Buffers (XIB) must be supported. + * Suppress Response IU Not Supported (SRIUNS) must NOT be supported + * (double negative). + */ + if (phba->cfg_suppress_rsp && bf_get(cfg_xib, mbx_sli4_parameters) && + !(bf_get(cfg_nosr, mbx_sli4_parameters))) + phba->sli.sli_flag |= LPFC_SLI_SUPPRESS_RSP; + else + phba->cfg_suppress_rsp = 0; + + if (bf_get(cfg_eqdr, mbx_sli4_parameters)) + phba->sli.sli_flag |= LPFC_SLI_USE_EQDR; + + /* Make sure that sge_supp_len can be handled by the driver */ + if (sli4_params->sge_supp_len > LPFC_MAX_SGE_SIZE) + sli4_params->sge_supp_len = LPFC_MAX_SGE_SIZE; + + /* + * Check whether the adapter supports an embedded copy of the + * FCP CMD IU within the WQE for FCP_Ixxx commands. In order + * to use this option, 128-byte WQEs must be used. + */ + if (bf_get(cfg_ext_embed_cb, mbx_sli4_parameters)) + phba->fcp_embed_io = 1; + else + phba->fcp_embed_io = 0; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT | LOG_NVME, + "6422 XIB %d PBDE %d: FCP %d NVME %d %d %d\n", + bf_get(cfg_xib, mbx_sli4_parameters), + phba->cfg_enable_pbde, + phba->fcp_embed_io, phba->nvme_support, + phba->cfg_nvme_embed_cmd, phba->cfg_suppress_rsp); + + if ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == + LPFC_SLI_INTF_IF_TYPE_2) && + (bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf) == + LPFC_SLI_INTF_FAMILY_LNCR_A0)) + exp_wqcq_pages = false; + + if ((bf_get(cfg_cqpsize, mbx_sli4_parameters) & LPFC_CQ_16K_PAGE_SZ) && + (bf_get(cfg_wqpsize, mbx_sli4_parameters) & LPFC_WQ_16K_PAGE_SZ) && + exp_wqcq_pages && + (sli4_params->wqsize & LPFC_WQ_SZ128_SUPPORT)) + phba->enab_exp_wqcq_pages = 1; + else + phba->enab_exp_wqcq_pages = 0; + /* + * Check if the SLI port supports MDS Diagnostics + */ + if (bf_get(cfg_mds_diags, mbx_sli4_parameters)) + phba->mds_diags_support = 1; + else + phba->mds_diags_support = 0; + return 0; +} + +/** + * lpfc_pci_probe_one_s3 - PCI probe func to reg SLI-3 device to PCI subsystem. + * @pdev: pointer to PCI device + * @pid: pointer to PCI device identifier + * + * This routine is to be called to attach a device with SLI-3 interface spec + * to the PCI subsystem. When an Emulex HBA with SLI-3 interface spec is + * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific + * information of the device and driver to see if the driver state that it can + * support this kind of device. If the match is successful, the driver core + * invokes this routine. If this routine determines it can claim the HBA, it + * does all the initialization that it needs to do to handle the HBA properly. + * + * Return code + * 0 - driver can claim the device + * negative value - driver can not claim the device + **/ +static int +lpfc_pci_probe_one_s3(struct pci_dev *pdev, const struct pci_device_id *pid) +{ + struct lpfc_hba *phba; + struct lpfc_vport *vport = NULL; + struct Scsi_Host *shost = NULL; + int error; + uint32_t cfg_mode, intr_mode; + + /* Allocate memory for HBA structure */ + phba = lpfc_hba_alloc(pdev); + if (!phba) + return -ENOMEM; + + /* Perform generic PCI device enabling operation */ + error = lpfc_enable_pci_dev(phba); + if (error) + goto out_free_phba; + + /* Set up SLI API function jump table for PCI-device group-0 HBAs */ + error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_LP); + if (error) + goto out_disable_pci_dev; + + /* Set up SLI-3 specific device PCI memory space */ + error = lpfc_sli_pci_mem_setup(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1402 Failed to set up pci memory space.\n"); + goto out_disable_pci_dev; + } + + /* Set up SLI-3 specific device driver resources */ + error = lpfc_sli_driver_resource_setup(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1404 Failed to set up driver resource.\n"); + goto out_unset_pci_mem_s3; + } + + /* Initialize and populate the iocb list per host */ + + error = lpfc_init_iocb_list(phba, LPFC_IOCB_LIST_CNT); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1405 Failed to initialize iocb list.\n"); + goto out_unset_driver_resource_s3; + } + + /* Set up common device driver resources */ + error = lpfc_setup_driver_resource_phase2(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1406 Failed to set up driver resource.\n"); + goto out_free_iocb_list; + } + + /* Get the default values for Model Name and Description */ + lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); + + /* Create SCSI host to the physical port */ + error = lpfc_create_shost(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1407 Failed to create scsi host.\n"); + goto out_unset_driver_resource; + } + + /* Configure sysfs attributes */ + vport = phba->pport; + error = lpfc_alloc_sysfs_attr(vport); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1476 Failed to allocate sysfs attr\n"); + goto out_destroy_shost; + } + + shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ + /* Now, trying to enable interrupt and bring up the device */ + cfg_mode = phba->cfg_use_msi; + while (true) { + /* Put device to a known state before enabling interrupt */ + lpfc_stop_port(phba); + /* Configure and enable interrupt */ + intr_mode = lpfc_sli_enable_intr(phba, cfg_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0431 Failed to enable interrupt.\n"); + error = -ENODEV; + goto out_free_sysfs_attr; + } + /* SLI-3 HBA setup */ + if (lpfc_sli_hba_setup(phba)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1477 Failed to set up hba\n"); + error = -ENODEV; + goto out_remove_device; + } + + /* Wait 50ms for the interrupts of previous mailbox commands */ + msleep(50); + /* Check active interrupts on message signaled interrupts */ + if (intr_mode == 0 || + phba->sli.slistat.sli_intr > LPFC_MSIX_VECTORS) { + /* Log the current active interrupt mode */ + phba->intr_mode = intr_mode; + lpfc_log_intr_mode(phba, intr_mode); + break; + } else { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0447 Configure interrupt mode (%d) " + "failed active interrupt test.\n", + intr_mode); + /* Disable the current interrupt mode */ + lpfc_sli_disable_intr(phba); + /* Try next level of interrupt mode */ + cfg_mode = --intr_mode; + } + } + + /* Perform post initialization setup */ + lpfc_post_init_setup(phba); + + /* Check if there are static vports to be created. */ + lpfc_create_static_vport(phba); + + return 0; + +out_remove_device: + lpfc_unset_hba(phba); +out_free_sysfs_attr: + lpfc_free_sysfs_attr(vport); +out_destroy_shost: + lpfc_destroy_shost(phba); +out_unset_driver_resource: + lpfc_unset_driver_resource_phase2(phba); +out_free_iocb_list: + lpfc_free_iocb_list(phba); +out_unset_driver_resource_s3: + lpfc_sli_driver_resource_unset(phba); +out_unset_pci_mem_s3: + lpfc_sli_pci_mem_unset(phba); +out_disable_pci_dev: + lpfc_disable_pci_dev(phba); + if (shost) + scsi_host_put(shost); +out_free_phba: + lpfc_hba_free(phba); + return error; +} + +/** + * lpfc_pci_remove_one_s3 - PCI func to unreg SLI-3 device from PCI subsystem. + * @pdev: pointer to PCI device + * + * This routine is to be called to disattach a device with SLI-3 interface + * spec from PCI subsystem. When an Emulex HBA with SLI-3 interface spec is + * removed from PCI bus, it performs all the necessary cleanup for the HBA + * device to be removed from the PCI subsystem properly. + **/ +static void +lpfc_pci_remove_one_s3(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_vport **vports; + struct lpfc_hba *phba = vport->phba; + int i; + + spin_lock_irq(&phba->hbalock); + vport->load_flag |= FC_UNLOADING; + spin_unlock_irq(&phba->hbalock); + + lpfc_free_sysfs_attr(vport); + + /* Release all the vports against this physical port */ + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + if (vports[i]->port_type == LPFC_PHYSICAL_PORT) + continue; + fc_vport_terminate(vports[i]->fc_vport); + } + lpfc_destroy_vport_work_array(phba, vports); + + /* Remove FC host and then SCSI host with the physical port */ + fc_remove_host(shost); + scsi_remove_host(shost); + + lpfc_cleanup(vport); + + /* + * Bring down the SLI Layer. This step disable all interrupts, + * clears the rings, discards all mailbox commands, and resets + * the HBA. + */ + + /* HBA interrupt will be disabled after this call */ + lpfc_sli_hba_down(phba); + /* Stop kthread signal shall trigger work_done one more time */ + kthread_stop(phba->worker_thread); + /* Final cleanup of txcmplq and reset the HBA */ + lpfc_sli_brdrestart(phba); + + kfree(phba->vpi_bmask); + kfree(phba->vpi_ids); + + lpfc_stop_hba_timers(phba); + spin_lock_irq(&phba->hbalock); + list_del_init(&vport->listentry); + spin_unlock_irq(&phba->hbalock); + + lpfc_debugfs_terminate(vport); + + /* Disable SR-IOV if enabled */ + if (phba->cfg_sriov_nr_virtfn) + pci_disable_sriov(pdev); + + /* Disable interrupt */ + lpfc_sli_disable_intr(phba); + + scsi_host_put(shost); + + /* + * Call scsi_free before mem_free since scsi bufs are released to their + * corresponding pools here. + */ + lpfc_scsi_free(phba); + lpfc_mem_free_all(phba); + + dma_free_coherent(&pdev->dev, lpfc_sli_hbq_size(), + phba->hbqslimp.virt, phba->hbqslimp.phys); + + /* Free resources associated with SLI2 interface */ + dma_free_coherent(&pdev->dev, SLI2_SLIM_SIZE, + phba->slim2p.virt, phba->slim2p.phys); + + /* unmap adapter SLIM and Control Registers */ + iounmap(phba->ctrl_regs_memmap_p); + iounmap(phba->slim_memmap_p); + + lpfc_hba_free(phba); + + pci_release_mem_regions(pdev); + pci_disable_device(pdev); +} + +/** + * lpfc_pci_suspend_one_s3 - PCI func to suspend SLI-3 device for power mgmnt + * @pdev: pointer to PCI device + * @msg: power management message + * + * This routine is to be called from the kernel's PCI subsystem to support + * system Power Management (PM) to device with SLI-3 interface spec. When + * PM invokes this method, it quiesces the device by stopping the driver's + * worker thread for the device, turning off device's interrupt and DMA, + * and bring the device offline. Note that as the driver implements the + * minimum PM requirements to a power-aware driver's PM support for the + * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) + * to the suspend() method call will be treated as SUSPEND and the driver will + * fully reinitialize its device during resume() method call, the driver will + * set device to PCI_D3hot state in PCI config space instead of setting it + * according to the @msg provided by the PM. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_suspend_one_s3(struct pci_dev *pdev, pm_message_t msg) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0473 PCI device Power Management suspend.\n"); + + /* Bring down the device */ + lpfc_offline_prep(phba, LPFC_MBX_WAIT); + lpfc_offline(phba); + kthread_stop(phba->worker_thread); + + /* Disable interrupt from device */ + lpfc_sli_disable_intr(phba); + + /* Save device state to PCI config space */ + pci_save_state(pdev); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} + +/** + * lpfc_pci_resume_one_s3 - PCI func to resume SLI-3 device for power mgmnt + * @pdev: pointer to PCI device + * + * This routine is to be called from the kernel's PCI subsystem to support + * system Power Management (PM) to device with SLI-3 interface spec. When PM + * invokes this method, it restores the device's PCI config space state and + * fully reinitializes the device and brings it online. Note that as the + * driver implements the minimum PM requirements to a power-aware driver's + * PM for suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, + * FREEZE) to the suspend() method call will be treated as SUSPEND and the + * driver will fully reinitialize its device during resume() method call, + * the device will be set to PCI_D0 directly in PCI config space before + * restoring the state. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_resume_one_s3(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + uint32_t intr_mode; + int error; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0452 PCI device Power Management resume.\n"); + + /* Restore device state from PCI config space */ + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + + /* + * As the new kernel behavior of pci_restore_state() API call clears + * device saved_state flag, need to save the restored state again. + */ + pci_save_state(pdev); + + if (pdev->is_busmaster) + pci_set_master(pdev); + + /* Startup the kernel thread for this host adapter. */ + phba->worker_thread = kthread_run(lpfc_do_work, phba, + "lpfc_worker_%d", phba->brd_no); + if (IS_ERR(phba->worker_thread)) { + error = PTR_ERR(phba->worker_thread); + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0434 PM resume failed to start worker " + "thread: error=x%x.\n", error); + return error; + } + + /* Configure and enable interrupt */ + intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0430 PM resume Failed to enable interrupt\n"); + return -EIO; + } else + phba->intr_mode = intr_mode; + + /* Restart HBA and bring it online */ + lpfc_sli_brdrestart(phba); + lpfc_online(phba); + + /* Log the current active interrupt mode */ + lpfc_log_intr_mode(phba, phba->intr_mode); + + return 0; +} + +/** + * lpfc_sli_prep_dev_for_recover - Prepare SLI3 device for pci slot recover + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to prepare the SLI3 device for PCI slot recover. It + * aborts all the outstanding SCSI I/Os to the pci device. + **/ +static void +lpfc_sli_prep_dev_for_recover(struct lpfc_hba *phba) +{ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2723 PCI channel I/O abort preparing for recovery\n"); + + /* + * There may be errored I/Os through HBA, abort all I/Os on txcmplq + * and let the SCSI mid-layer to retry them to recover. + */ + lpfc_sli_abort_fcp_rings(phba); +} + +/** + * lpfc_sli_prep_dev_for_reset - Prepare SLI3 device for pci slot reset + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to prepare the SLI3 device for PCI slot reset. It + * disables the device interrupt and pci device, and aborts the internal FCP + * pending I/Os. + **/ +static void +lpfc_sli_prep_dev_for_reset(struct lpfc_hba *phba) +{ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2710 PCI channel disable preparing for reset\n"); + + /* Block any management I/Os to the device */ + lpfc_block_mgmt_io(phba, LPFC_MBX_WAIT); + + /* Block all SCSI devices' I/Os on the host */ + lpfc_scsi_dev_block(phba); + + /* Flush all driver's outstanding SCSI I/Os as we are to reset */ + lpfc_sli_flush_fcp_rings(phba); + + /* stop all timers */ + lpfc_stop_hba_timers(phba); + + /* Disable interrupt and pci device */ + lpfc_sli_disable_intr(phba); + pci_disable_device(phba->pcidev); +} + +/** + * lpfc_sli_prep_dev_for_perm_failure - Prepare SLI3 dev for pci slot disable + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to prepare the SLI3 device for PCI slot permanently + * disabling. It blocks the SCSI transport layer traffic and flushes the FCP + * pending I/Os. + **/ +static void +lpfc_sli_prep_dev_for_perm_failure(struct lpfc_hba *phba) +{ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2711 PCI channel permanent disable for failure\n"); + /* Block all SCSI devices' I/Os on the host */ + lpfc_scsi_dev_block(phba); + + /* stop all timers */ + lpfc_stop_hba_timers(phba); + + /* Clean up all driver's outstanding SCSI I/Os */ + lpfc_sli_flush_fcp_rings(phba); +} + +/** + * lpfc_io_error_detected_s3 - Method for handling SLI-3 device PCI I/O error + * @pdev: pointer to PCI device. + * @state: the current PCI connection state. + * + * This routine is called from the PCI subsystem for I/O error handling to + * device with SLI-3 interface spec. This function is called by the PCI + * subsystem after a PCI bus error affecting this device has been detected. + * When this function is invoked, it will need to stop all the I/Os and + * interrupt(s) to the device. Once that is done, it will return + * PCI_ERS_RESULT_NEED_RESET for the PCI subsystem to perform proper recovery + * as desired. + * + * Return codes + * PCI_ERS_RESULT_CAN_RECOVER - can be recovered with reset_link + * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery + * PCI_ERS_RESULT_DISCONNECT - device could not be recovered + **/ +static pci_ers_result_t +lpfc_io_error_detected_s3(struct pci_dev *pdev, pci_channel_state_t state) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + switch (state) { + case pci_channel_io_normal: + /* Non-fatal error, prepare for recovery */ + lpfc_sli_prep_dev_for_recover(phba); + return PCI_ERS_RESULT_CAN_RECOVER; + case pci_channel_io_frozen: + /* Fatal error, prepare for slot reset */ + lpfc_sli_prep_dev_for_reset(phba); + return PCI_ERS_RESULT_NEED_RESET; + case pci_channel_io_perm_failure: + /* Permanent failure, prepare for device down */ + lpfc_sli_prep_dev_for_perm_failure(phba); + return PCI_ERS_RESULT_DISCONNECT; + default: + /* Unknown state, prepare and request slot reset */ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0472 Unknown PCI error state: x%x\n", state); + lpfc_sli_prep_dev_for_reset(phba); + return PCI_ERS_RESULT_NEED_RESET; + } +} + +/** + * lpfc_io_slot_reset_s3 - Method for restarting PCI SLI-3 device from scratch. + * @pdev: pointer to PCI device. + * + * This routine is called from the PCI subsystem for error handling to + * device with SLI-3 interface spec. This is called after PCI bus has been + * reset to restart the PCI card from scratch, as if from a cold-boot. + * During the PCI subsystem error recovery, after driver returns + * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error + * recovery and then call this routine before calling the .resume method + * to recover the device. This function will initialize the HBA device, + * enable the interrupt, but it will just put the HBA to offline state + * without passing any I/O traffic. + * + * Return codes + * PCI_ERS_RESULT_RECOVERED - the device has been recovered + * PCI_ERS_RESULT_DISCONNECT - device could not be recovered + */ +static pci_ers_result_t +lpfc_io_slot_reset_s3(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + struct lpfc_sli *psli = &phba->sli; + uint32_t intr_mode; + + dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); + if (pci_enable_device_mem(pdev)) { + printk(KERN_ERR "lpfc: Cannot re-enable " + "PCI device after reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + + pci_restore_state(pdev); + + /* + * As the new kernel behavior of pci_restore_state() API call clears + * device saved_state flag, need to save the restored state again. + */ + pci_save_state(pdev); + + if (pdev->is_busmaster) + pci_set_master(pdev); + + spin_lock_irq(&phba->hbalock); + psli->sli_flag &= ~LPFC_SLI_ACTIVE; + spin_unlock_irq(&phba->hbalock); + + /* Configure and enable interrupt */ + intr_mode = lpfc_sli_enable_intr(phba, phba->intr_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0427 Cannot re-enable interrupt after " + "slot reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } else + phba->intr_mode = intr_mode; + + /* Take device offline, it will perform cleanup */ + lpfc_offline_prep(phba, LPFC_MBX_WAIT); + lpfc_offline(phba); + lpfc_sli_brdrestart(phba); + + /* Log the current active interrupt mode */ + lpfc_log_intr_mode(phba, phba->intr_mode); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * lpfc_io_resume_s3 - Method for resuming PCI I/O operation on SLI-3 device. + * @pdev: pointer to PCI device + * + * This routine is called from the PCI subsystem for error handling to device + * with SLI-3 interface spec. It is called when kernel error recovery tells + * the lpfc driver that it is ok to resume normal PCI operation after PCI bus + * error recovery. After this call, traffic can start to flow from this device + * again. + */ +static void +lpfc_io_resume_s3(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + /* Bring device online, it will be no-op for non-fatal error resume */ + lpfc_online(phba); + + /* Clean up Advanced Error Reporting (AER) if needed */ + if (phba->hba_flag & HBA_AER_ENABLED) + pci_cleanup_aer_uncorrect_error_status(pdev); +} + +/** + * lpfc_sli4_get_els_iocb_cnt - Calculate the # of ELS IOCBs to reserve + * @phba: pointer to lpfc hba data structure. + * + * returns the number of ELS/CT IOCBs to reserve + **/ +int +lpfc_sli4_get_els_iocb_cnt(struct lpfc_hba *phba) +{ + int max_xri = phba->sli4_hba.max_cfg_param.max_xri; + + if (phba->sli_rev == LPFC_SLI_REV4) { + if (max_xri <= 100) + return 10; + else if (max_xri <= 256) + return 25; + else if (max_xri <= 512) + return 50; + else if (max_xri <= 1024) + return 100; + else if (max_xri <= 1536) + return 150; + else if (max_xri <= 2048) + return 200; + else + return 250; + } else + return 0; +} + +/** + * lpfc_sli4_get_iocb_cnt - Calculate the # of total IOCBs to reserve + * @phba: pointer to lpfc hba data structure. + * + * returns the number of ELS/CT + NVMET IOCBs to reserve + **/ +int +lpfc_sli4_get_iocb_cnt(struct lpfc_hba *phba) +{ + int max_xri = lpfc_sli4_get_els_iocb_cnt(phba); + + if (phba->nvmet_support) + max_xri += LPFC_NVMET_BUF_POST; + return max_xri; +} + + +static void +lpfc_log_write_firmware_error(struct lpfc_hba *phba, uint32_t offset, + uint32_t magic_number, uint32_t ftype, uint32_t fid, uint32_t fsize, + const struct firmware *fw) +{ + if ((offset == ADD_STATUS_FW_NOT_SUPPORTED) || + (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC && + magic_number != MAGIC_NUMER_G6) || + (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC && + magic_number != MAGIC_NUMER_G7)) + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3030 This firmware version is not supported on " + "this HBA model. Device:%x Magic:%x Type:%x " + "ID:%x Size %d %zd\n", + phba->pcidev->device, magic_number, ftype, fid, + fsize, fw->size); + else + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3022 FW Download failed. Device:%x Magic:%x Type:%x " + "ID:%x Size %d %zd\n", + phba->pcidev->device, magic_number, ftype, fid, + fsize, fw->size); +} + + +/** + * lpfc_write_firmware - attempt to write a firmware image to the port + * @fw: pointer to firmware image returned from request_firmware. + * @phba: pointer to lpfc hba data structure. + * + **/ +static void +lpfc_write_firmware(const struct firmware *fw, void *context) +{ + struct lpfc_hba *phba = (struct lpfc_hba *)context; + char fwrev[FW_REV_STR_SIZE]; + struct lpfc_grp_hdr *image; + struct list_head dma_buffer_list; + int i, rc = 0; + struct lpfc_dmabuf *dmabuf, *next; + uint32_t offset = 0, temp_offset = 0; + uint32_t magic_number, ftype, fid, fsize; + + /* It can be null in no-wait mode, sanity check */ + if (!fw) { + rc = -ENXIO; + goto out; + } + image = (struct lpfc_grp_hdr *)fw->data; + + magic_number = be32_to_cpu(image->magic_number); + ftype = bf_get_be32(lpfc_grp_hdr_file_type, image); + fid = bf_get_be32(lpfc_grp_hdr_id, image); + fsize = be32_to_cpu(image->size); + + INIT_LIST_HEAD(&dma_buffer_list); + lpfc_decode_firmware_rev(phba, fwrev, 1); + if (strncmp(fwrev, image->revision, strnlen(image->revision, 16))) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3023 Updating Firmware, Current Version:%s " + "New Version:%s\n", + fwrev, image->revision); + for (i = 0; i < LPFC_MBX_WR_CONFIG_MAX_BDE; i++) { + dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), + GFP_KERNEL); + if (!dmabuf) { + rc = -ENOMEM; + goto release_out; + } + dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev, + SLI4_PAGE_SIZE, + &dmabuf->phys, + GFP_KERNEL); + if (!dmabuf->virt) { + kfree(dmabuf); + rc = -ENOMEM; + goto release_out; + } + list_add_tail(&dmabuf->list, &dma_buffer_list); + } + while (offset < fw->size) { + temp_offset = offset; + list_for_each_entry(dmabuf, &dma_buffer_list, list) { + if (temp_offset + SLI4_PAGE_SIZE > fw->size) { + memcpy(dmabuf->virt, + fw->data + temp_offset, + fw->size - temp_offset); + temp_offset = fw->size; + break; + } + memcpy(dmabuf->virt, fw->data + temp_offset, + SLI4_PAGE_SIZE); + temp_offset += SLI4_PAGE_SIZE; + } + rc = lpfc_wr_object(phba, &dma_buffer_list, + (fw->size - offset), &offset); + if (rc) { + lpfc_log_write_firmware_error(phba, offset, + magic_number, ftype, fid, fsize, fw); + goto release_out; + } + } + rc = offset; + } else + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3029 Skipped Firmware update, Current " + "Version:%s New Version:%s\n", + fwrev, image->revision); + +release_out: + list_for_each_entry_safe(dmabuf, next, &dma_buffer_list, list) { + list_del(&dmabuf->list); + dma_free_coherent(&phba->pcidev->dev, SLI4_PAGE_SIZE, + dmabuf->virt, dmabuf->phys); + kfree(dmabuf); + } + release_firmware(fw); +out: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3024 Firmware update done: %d.\n", rc); + return; +} + +/** + * lpfc_sli4_request_firmware_update - Request linux generic firmware upgrade + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to perform Linux generic firmware upgrade on device + * that supports such feature. + **/ +int +lpfc_sli4_request_firmware_update(struct lpfc_hba *phba, uint8_t fw_upgrade) +{ + uint8_t file_name[ELX_MODEL_NAME_SIZE]; + int ret; + const struct firmware *fw; + + /* Only supported on SLI4 interface type 2 for now */ + if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < + LPFC_SLI_INTF_IF_TYPE_2) + return -EPERM; + + snprintf(file_name, ELX_MODEL_NAME_SIZE, "%s.grp", phba->ModelName); + + if (fw_upgrade == INT_FW_UPGRADE) { + ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_HOTPLUG, + file_name, &phba->pcidev->dev, + GFP_KERNEL, (void *)phba, + lpfc_write_firmware); + } else if (fw_upgrade == RUN_FW_UPGRADE) { + ret = request_firmware(&fw, file_name, &phba->pcidev->dev); + if (!ret) + lpfc_write_firmware(fw, (void *)phba); + } else { + ret = -EINVAL; + } + + return ret; +} + +/** + * lpfc_pci_probe_one_s4 - PCI probe func to reg SLI-4 device to PCI subsys + * @pdev: pointer to PCI device + * @pid: pointer to PCI device identifier + * + * This routine is called from the kernel's PCI subsystem to device with + * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is + * presented on PCI bus, the kernel PCI subsystem looks at PCI device-specific + * information of the device and driver to see if the driver state that it + * can support this kind of device. If the match is successful, the driver + * core invokes this routine. If this routine determines it can claim the HBA, + * it does all the initialization that it needs to do to handle the HBA + * properly. + * + * Return code + * 0 - driver can claim the device + * negative value - driver can not claim the device + **/ +static int +lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid) +{ + struct lpfc_hba *phba; + struct lpfc_vport *vport = NULL; + struct Scsi_Host *shost = NULL; + int error; + uint32_t cfg_mode, intr_mode; + + /* Allocate memory for HBA structure */ + phba = lpfc_hba_alloc(pdev); + if (!phba) + return -ENOMEM; + + /* Perform generic PCI device enabling operation */ + error = lpfc_enable_pci_dev(phba); + if (error) + goto out_free_phba; + + /* Set up SLI API function jump table for PCI-device group-1 HBAs */ + error = lpfc_api_table_setup(phba, LPFC_PCI_DEV_OC); + if (error) + goto out_disable_pci_dev; + + /* Set up SLI-4 specific device PCI memory space */ + error = lpfc_sli4_pci_mem_setup(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1410 Failed to set up pci memory space.\n"); + goto out_disable_pci_dev; + } + + /* Set up SLI-4 Specific device driver resources */ + error = lpfc_sli4_driver_resource_setup(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1412 Failed to set up driver resource.\n"); + goto out_unset_pci_mem_s4; + } + + INIT_LIST_HEAD(&phba->active_rrq_list); + INIT_LIST_HEAD(&phba->fcf.fcf_pri_list); + + /* Set up common device driver resources */ + error = lpfc_setup_driver_resource_phase2(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1414 Failed to set up driver resource.\n"); + goto out_unset_driver_resource_s4; + } + + /* Get the default values for Model Name and Description */ + lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc); + + /* Create SCSI host to the physical port */ + error = lpfc_create_shost(phba); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1415 Failed to create scsi host.\n"); + goto out_unset_driver_resource; + } + + /* Configure sysfs attributes */ + vport = phba->pport; + error = lpfc_alloc_sysfs_attr(vport); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1416 Failed to allocate sysfs attr\n"); + goto out_destroy_shost; + } + + shost = lpfc_shost_from_vport(vport); /* save shost for error cleanup */ + /* Now, trying to enable interrupt and bring up the device */ + cfg_mode = phba->cfg_use_msi; + + /* Put device to a known state before enabling interrupt */ + lpfc_stop_port(phba); + + /* Configure and enable interrupt */ + intr_mode = lpfc_sli4_enable_intr(phba, cfg_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0426 Failed to enable interrupt.\n"); + error = -ENODEV; + goto out_free_sysfs_attr; + } + /* Default to single EQ for non-MSI-X */ + if (phba->intr_type != MSIX) { + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) + phba->cfg_fcp_io_channel = 1; + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + phba->cfg_nvme_io_channel = 1; + if (phba->nvmet_support) + phba->cfg_nvmet_mrq = 1; + } + phba->io_channel_irqs = 1; + } + + /* Set up SLI-4 HBA */ + if (lpfc_sli4_hba_setup(phba)) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1421 Failed to set up hba\n"); + error = -ENODEV; + goto out_disable_intr; + } + + /* Log the current active interrupt mode */ + phba->intr_mode = intr_mode; + lpfc_log_intr_mode(phba, intr_mode); + + /* Perform post initialization setup */ + lpfc_post_init_setup(phba); + + /* NVME support in FW earlier in the driver load corrects the + * FC4 type making a check for nvme_support unnecessary. + */ + if ((phba->nvmet_support == 0) && + (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { + /* Create NVME binding with nvme_fc_transport. This + * ensures the vport is initialized. If the localport + * create fails, it should not unload the driver to + * support field issues. + */ + error = lpfc_nvme_create_localport(vport); + if (error) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "6004 NVME registration failed, " + "error x%x\n", + error); + } + } + + /* check for firmware upgrade or downgrade */ + if (phba->cfg_request_firmware_upgrade) + lpfc_sli4_request_firmware_update(phba, INT_FW_UPGRADE); + + /* Check if there are static vports to be created. */ + lpfc_create_static_vport(phba); + return 0; + +out_disable_intr: + lpfc_sli4_disable_intr(phba); +out_free_sysfs_attr: + lpfc_free_sysfs_attr(vport); +out_destroy_shost: + lpfc_destroy_shost(phba); +out_unset_driver_resource: + lpfc_unset_driver_resource_phase2(phba); +out_unset_driver_resource_s4: + lpfc_sli4_driver_resource_unset(phba); +out_unset_pci_mem_s4: + lpfc_sli4_pci_mem_unset(phba); +out_disable_pci_dev: + lpfc_disable_pci_dev(phba); + if (shost) + scsi_host_put(shost); +out_free_phba: + lpfc_hba_free(phba); + return error; +} + +/** + * lpfc_pci_remove_one_s4 - PCI func to unreg SLI-4 device from PCI subsystem + * @pdev: pointer to PCI device + * + * This routine is called from the kernel's PCI subsystem to device with + * SLI-4 interface spec. When an Emulex HBA with SLI-4 interface spec is + * removed from PCI bus, it performs all the necessary cleanup for the HBA + * device to be removed from the PCI subsystem properly. + **/ +static void +lpfc_pci_remove_one_s4(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_vport **vports; + struct lpfc_hba *phba = vport->phba; + int i; + + /* Mark the device unloading flag */ + spin_lock_irq(&phba->hbalock); + vport->load_flag |= FC_UNLOADING; + spin_unlock_irq(&phba->hbalock); + + /* Free the HBA sysfs attributes */ + lpfc_free_sysfs_attr(vport); + + /* Release all the vports against this physical port */ + vports = lpfc_create_vport_work_array(phba); + if (vports != NULL) + for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { + if (vports[i]->port_type == LPFC_PHYSICAL_PORT) + continue; + fc_vport_terminate(vports[i]->fc_vport); + } + lpfc_destroy_vport_work_array(phba, vports); + + /* Remove FC host and then SCSI host with the physical port */ + fc_remove_host(shost); + scsi_remove_host(shost); + + /* Perform ndlp cleanup on the physical port. The nvme and nvmet + * localports are destroyed after to cleanup all transport memory. + */ + lpfc_cleanup(vport); + lpfc_nvmet_destroy_targetport(phba); + lpfc_nvme_destroy_localport(vport); + + /* + * Bring down the SLI Layer. This step disables all interrupts, + * clears the rings, discards all mailbox commands, and resets + * the HBA FCoE function. + */ + lpfc_debugfs_terminate(vport); + lpfc_sli4_hba_unset(phba); + + lpfc_stop_hba_timers(phba); + spin_lock_irq(&phba->hbalock); + list_del_init(&vport->listentry); + spin_unlock_irq(&phba->hbalock); + + /* Perform scsi free before driver resource_unset since scsi + * buffers are released to their corresponding pools here. + */ + lpfc_scsi_free(phba); + lpfc_nvme_free(phba); + lpfc_free_iocb_list(phba); + + lpfc_unset_driver_resource_phase2(phba); + lpfc_sli4_driver_resource_unset(phba); + + /* Unmap adapter Control and Doorbell registers */ + lpfc_sli4_pci_mem_unset(phba); + + /* Release PCI resources and disable device's PCI function */ + scsi_host_put(shost); + lpfc_disable_pci_dev(phba); + + /* Finally, free the driver's device data structure */ + lpfc_hba_free(phba); + + return; +} + +/** + * lpfc_pci_suspend_one_s4 - PCI func to suspend SLI-4 device for power mgmnt + * @pdev: pointer to PCI device + * @msg: power management message + * + * This routine is called from the kernel's PCI subsystem to support system + * Power Management (PM) to device with SLI-4 interface spec. When PM invokes + * this method, it quiesces the device by stopping the driver's worker + * thread for the device, turning off device's interrupt and DMA, and bring + * the device offline. Note that as the driver implements the minimum PM + * requirements to a power-aware driver's PM support for suspend/resume -- all + * the possible PM messages (SUSPEND, HIBERNATE, FREEZE) to the suspend() + * method call will be treated as SUSPEND and the driver will fully + * reinitialize its device during resume() method call, the driver will set + * device to PCI_D3hot state in PCI config space instead of setting it + * according to the @msg provided by the PM. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_suspend_one_s4(struct pci_dev *pdev, pm_message_t msg) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "2843 PCI device Power Management suspend.\n"); + + /* Bring down the device */ + lpfc_offline_prep(phba, LPFC_MBX_WAIT); + lpfc_offline(phba); + kthread_stop(phba->worker_thread); + + /* Disable interrupt from device */ + lpfc_sli4_disable_intr(phba); + lpfc_sli4_queue_destroy(phba); + + /* Save device state to PCI config space */ + pci_save_state(pdev); + pci_set_power_state(pdev, PCI_D3hot); + + return 0; +} + +/** + * lpfc_pci_resume_one_s4 - PCI func to resume SLI-4 device for power mgmnt + * @pdev: pointer to PCI device + * + * This routine is called from the kernel's PCI subsystem to support system + * Power Management (PM) to device with SLI-4 interface spac. When PM invokes + * this method, it restores the device's PCI config space state and fully + * reinitializes the device and brings it online. Note that as the driver + * implements the minimum PM requirements to a power-aware driver's PM for + * suspend/resume -- all the possible PM messages (SUSPEND, HIBERNATE, FREEZE) + * to the suspend() method call will be treated as SUSPEND and the driver + * will fully reinitialize its device during resume() method call, the device + * will be set to PCI_D0 directly in PCI config space before restoring the + * state. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_resume_one_s4(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + uint32_t intr_mode; + int error; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0292 PCI device Power Management resume.\n"); + + /* Restore device state from PCI config space */ + pci_set_power_state(pdev, PCI_D0); + pci_restore_state(pdev); + + /* + * As the new kernel behavior of pci_restore_state() API call clears + * device saved_state flag, need to save the restored state again. + */ + pci_save_state(pdev); + + if (pdev->is_busmaster) + pci_set_master(pdev); + + /* Startup the kernel thread for this host adapter. */ + phba->worker_thread = kthread_run(lpfc_do_work, phba, + "lpfc_worker_%d", phba->brd_no); + if (IS_ERR(phba->worker_thread)) { + error = PTR_ERR(phba->worker_thread); + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0293 PM resume failed to start worker " + "thread: error=x%x.\n", error); + return error; + } + + /* Configure and enable interrupt */ + intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0294 PM resume Failed to enable interrupt\n"); + return -EIO; + } else + phba->intr_mode = intr_mode; + + /* Restart HBA and bring it online */ + lpfc_sli_brdrestart(phba); + lpfc_online(phba); + + /* Log the current active interrupt mode */ + lpfc_log_intr_mode(phba, phba->intr_mode); + + return 0; +} + +/** + * lpfc_sli4_prep_dev_for_recover - Prepare SLI4 device for pci slot recover + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to prepare the SLI4 device for PCI slot recover. It + * aborts all the outstanding SCSI I/Os to the pci device. + **/ +static void +lpfc_sli4_prep_dev_for_recover(struct lpfc_hba *phba) +{ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2828 PCI channel I/O abort preparing for recovery\n"); + /* + * There may be errored I/Os through HBA, abort all I/Os on txcmplq + * and let the SCSI mid-layer to retry them to recover. + */ + lpfc_sli_abort_fcp_rings(phba); +} + +/** + * lpfc_sli4_prep_dev_for_reset - Prepare SLI4 device for pci slot reset + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to prepare the SLI4 device for PCI slot reset. It + * disables the device interrupt and pci device, and aborts the internal FCP + * pending I/Os. + **/ +static void +lpfc_sli4_prep_dev_for_reset(struct lpfc_hba *phba) +{ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2826 PCI channel disable preparing for reset\n"); + + /* Block any management I/Os to the device */ + lpfc_block_mgmt_io(phba, LPFC_MBX_NO_WAIT); + + /* Block all SCSI devices' I/Os on the host */ + lpfc_scsi_dev_block(phba); + + /* Flush all driver's outstanding SCSI I/Os as we are to reset */ + lpfc_sli_flush_fcp_rings(phba); + + /* Flush the outstanding NVME IOs if fc4 type enabled. */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) + lpfc_sli_flush_nvme_rings(phba); + + /* stop all timers */ + lpfc_stop_hba_timers(phba); + + /* Disable interrupt and pci device */ + lpfc_sli4_disable_intr(phba); + lpfc_sli4_queue_destroy(phba); + pci_disable_device(phba->pcidev); +} + +/** + * lpfc_sli4_prep_dev_for_perm_failure - Prepare SLI4 dev for pci slot disable + * @phba: pointer to lpfc hba data structure. + * + * This routine is called to prepare the SLI4 device for PCI slot permanently + * disabling. It blocks the SCSI transport layer traffic and flushes the FCP + * pending I/Os. + **/ +static void +lpfc_sli4_prep_dev_for_perm_failure(struct lpfc_hba *phba) +{ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2827 PCI channel permanent disable for failure\n"); + + /* Block all SCSI devices' I/Os on the host */ + lpfc_scsi_dev_block(phba); + + /* stop all timers */ + lpfc_stop_hba_timers(phba); + + /* Clean up all driver's outstanding SCSI I/Os */ + lpfc_sli_flush_fcp_rings(phba); + + /* Flush the outstanding NVME IOs if fc4 type enabled. */ + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) + lpfc_sli_flush_nvme_rings(phba); +} + +/** + * lpfc_io_error_detected_s4 - Method for handling PCI I/O error to SLI-4 device + * @pdev: pointer to PCI device. + * @state: the current PCI connection state. + * + * This routine is called from the PCI subsystem for error handling to device + * with SLI-4 interface spec. This function is called by the PCI subsystem + * after a PCI bus error affecting this device has been detected. When this + * function is invoked, it will need to stop all the I/Os and interrupt(s) + * to the device. Once that is done, it will return PCI_ERS_RESULT_NEED_RESET + * for the PCI subsystem to perform proper recovery as desired. + * + * Return codes + * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery + * PCI_ERS_RESULT_DISCONNECT - device could not be recovered + **/ +static pci_ers_result_t +lpfc_io_error_detected_s4(struct pci_dev *pdev, pci_channel_state_t state) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + switch (state) { + case pci_channel_io_normal: + /* Non-fatal error, prepare for recovery */ + lpfc_sli4_prep_dev_for_recover(phba); + return PCI_ERS_RESULT_CAN_RECOVER; + case pci_channel_io_frozen: + /* Fatal error, prepare for slot reset */ + lpfc_sli4_prep_dev_for_reset(phba); + return PCI_ERS_RESULT_NEED_RESET; + case pci_channel_io_perm_failure: + /* Permanent failure, prepare for device down */ + lpfc_sli4_prep_dev_for_perm_failure(phba); + return PCI_ERS_RESULT_DISCONNECT; + default: + /* Unknown state, prepare and request slot reset */ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2825 Unknown PCI error state: x%x\n", state); + lpfc_sli4_prep_dev_for_reset(phba); + return PCI_ERS_RESULT_NEED_RESET; + } +} + +/** + * lpfc_io_slot_reset_s4 - Method for restart PCI SLI-4 device from scratch + * @pdev: pointer to PCI device. + * + * This routine is called from the PCI subsystem for error handling to device + * with SLI-4 interface spec. It is called after PCI bus has been reset to + * restart the PCI card from scratch, as if from a cold-boot. During the + * PCI subsystem error recovery, after the driver returns + * PCI_ERS_RESULT_NEED_RESET, the PCI subsystem will perform proper error + * recovery and then call this routine before calling the .resume method to + * recover the device. This function will initialize the HBA device, enable + * the interrupt, but it will just put the HBA to offline state without + * passing any I/O traffic. + * + * Return codes + * PCI_ERS_RESULT_RECOVERED - the device has been recovered + * PCI_ERS_RESULT_DISCONNECT - device could not be recovered + */ +static pci_ers_result_t +lpfc_io_slot_reset_s4(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + struct lpfc_sli *psli = &phba->sli; + uint32_t intr_mode; + + dev_printk(KERN_INFO, &pdev->dev, "recovering from a slot reset.\n"); + if (pci_enable_device_mem(pdev)) { + printk(KERN_ERR "lpfc: Cannot re-enable " + "PCI device after reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } + + pci_restore_state(pdev); + + /* + * As the new kernel behavior of pci_restore_state() API call clears + * device saved_state flag, need to save the restored state again. + */ + pci_save_state(pdev); + + if (pdev->is_busmaster) + pci_set_master(pdev); + + spin_lock_irq(&phba->hbalock); + psli->sli_flag &= ~LPFC_SLI_ACTIVE; + spin_unlock_irq(&phba->hbalock); + + /* Configure and enable interrupt */ + intr_mode = lpfc_sli4_enable_intr(phba, phba->intr_mode); + if (intr_mode == LPFC_INTR_ERROR) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2824 Cannot re-enable interrupt after " + "slot reset.\n"); + return PCI_ERS_RESULT_DISCONNECT; + } else + phba->intr_mode = intr_mode; + + /* Log the current active interrupt mode */ + lpfc_log_intr_mode(phba, phba->intr_mode); + + return PCI_ERS_RESULT_RECOVERED; +} + +/** + * lpfc_io_resume_s4 - Method for resuming PCI I/O operation to SLI-4 device + * @pdev: pointer to PCI device + * + * This routine is called from the PCI subsystem for error handling to device + * with SLI-4 interface spec. It is called when kernel error recovery tells + * the lpfc driver that it is ok to resume normal PCI operation after PCI bus + * error recovery. After this call, traffic can start to flow from this device + * again. + **/ +static void +lpfc_io_resume_s4(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + /* + * In case of slot reset, as function reset is performed through + * mailbox command which needs DMA to be enabled, this operation + * has to be moved to the io resume phase. Taking device offline + * will perform the necessary cleanup. + */ + if (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE)) { + /* Perform device reset */ + lpfc_offline_prep(phba, LPFC_MBX_WAIT); + lpfc_offline(phba); + lpfc_sli_brdrestart(phba); + /* Bring the device back online */ + lpfc_online(phba); + } + + /* Clean up Advanced Error Reporting (AER) if needed */ + if (phba->hba_flag & HBA_AER_ENABLED) + pci_cleanup_aer_uncorrect_error_status(pdev); +} + +/** + * lpfc_pci_probe_one - lpfc PCI probe func to reg dev to PCI subsystem + * @pdev: pointer to PCI device + * @pid: pointer to PCI device identifier + * + * This routine is to be registered to the kernel's PCI subsystem. When an + * Emulex HBA device is presented on PCI bus, the kernel PCI subsystem looks + * at PCI device-specific information of the device and driver to see if the + * driver state that it can support this kind of device. If the match is + * successful, the driver core invokes this routine. This routine dispatches + * the action to the proper SLI-3 or SLI-4 device probing routine, which will + * do all the initialization that it needs to do to handle the HBA device + * properly. + * + * Return code + * 0 - driver can claim the device + * negative value - driver can not claim the device + **/ +static int +lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) +{ + int rc; + struct lpfc_sli_intf intf; + + if (pci_read_config_dword(pdev, LPFC_SLI_INTF, &intf.word0)) + return -ENODEV; + + if ((bf_get(lpfc_sli_intf_valid, &intf) == LPFC_SLI_INTF_VALID) && + (bf_get(lpfc_sli_intf_slirev, &intf) == LPFC_SLI_INTF_REV_SLI4)) + rc = lpfc_pci_probe_one_s4(pdev, pid); + else + rc = lpfc_pci_probe_one_s3(pdev, pid); + + return rc; +} + +/** + * lpfc_pci_remove_one - lpfc PCI func to unreg dev from PCI subsystem + * @pdev: pointer to PCI device + * + * This routine is to be registered to the kernel's PCI subsystem. When an + * Emulex HBA is removed from PCI bus, the driver core invokes this routine. + * This routine dispatches the action to the proper SLI-3 or SLI-4 device + * remove routine, which will perform all the necessary cleanup for the + * device to be removed from the PCI subsystem properly. + **/ +static void +lpfc_pci_remove_one(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + switch (phba->pci_dev_grp) { + case LPFC_PCI_DEV_LP: + lpfc_pci_remove_one_s3(pdev); + break; + case LPFC_PCI_DEV_OC: + lpfc_pci_remove_one_s4(pdev); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1424 Invalid PCI device group: 0x%x\n", + phba->pci_dev_grp); + break; + } + return; +} + +/** + * lpfc_pci_suspend_one - lpfc PCI func to suspend dev for power management + * @pdev: pointer to PCI device + * @msg: power management message + * + * This routine is to be registered to the kernel's PCI subsystem to support + * system Power Management (PM). When PM invokes this method, it dispatches + * the action to the proper SLI-3 or SLI-4 device suspend routine, which will + * suspend the device. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_suspend_one(struct pci_dev *pdev, pm_message_t msg) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + int rc = -ENODEV; + + switch (phba->pci_dev_grp) { + case LPFC_PCI_DEV_LP: + rc = lpfc_pci_suspend_one_s3(pdev, msg); + break; + case LPFC_PCI_DEV_OC: + rc = lpfc_pci_suspend_one_s4(pdev, msg); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1425 Invalid PCI device group: 0x%x\n", + phba->pci_dev_grp); + break; + } + return rc; +} + +/** + * lpfc_pci_resume_one - lpfc PCI func to resume dev for power management + * @pdev: pointer to PCI device + * + * This routine is to be registered to the kernel's PCI subsystem to support + * system Power Management (PM). When PM invokes this method, it dispatches + * the action to the proper SLI-3 or SLI-4 device resume routine, which will + * resume the device. + * + * Return code + * 0 - driver suspended the device + * Error otherwise + **/ +static int +lpfc_pci_resume_one(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + int rc = -ENODEV; + + switch (phba->pci_dev_grp) { + case LPFC_PCI_DEV_LP: + rc = lpfc_pci_resume_one_s3(pdev); + break; + case LPFC_PCI_DEV_OC: + rc = lpfc_pci_resume_one_s4(pdev); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1426 Invalid PCI device group: 0x%x\n", + phba->pci_dev_grp); + break; + } + return rc; +} + +/** + * lpfc_io_error_detected - lpfc method for handling PCI I/O error + * @pdev: pointer to PCI device. + * @state: the current PCI connection state. + * + * This routine is registered to the PCI subsystem for error handling. This + * function is called by the PCI subsystem after a PCI bus error affecting + * this device has been detected. When this routine is invoked, it dispatches + * the action to the proper SLI-3 or SLI-4 device error detected handling + * routine, which will perform the proper error detected operation. + * + * Return codes + * PCI_ERS_RESULT_NEED_RESET - need to reset before recovery + * PCI_ERS_RESULT_DISCONNECT - device could not be recovered + **/ +static pci_ers_result_t +lpfc_io_error_detected(struct pci_dev *pdev, pci_channel_state_t state) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; + + switch (phba->pci_dev_grp) { + case LPFC_PCI_DEV_LP: + rc = lpfc_io_error_detected_s3(pdev, state); + break; + case LPFC_PCI_DEV_OC: + rc = lpfc_io_error_detected_s4(pdev, state); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1427 Invalid PCI device group: 0x%x\n", + phba->pci_dev_grp); + break; + } + return rc; +} + +/** + * lpfc_io_slot_reset - lpfc method for restart PCI dev from scratch + * @pdev: pointer to PCI device. + * + * This routine is registered to the PCI subsystem for error handling. This + * function is called after PCI bus has been reset to restart the PCI card + * from scratch, as if from a cold-boot. When this routine is invoked, it + * dispatches the action to the proper SLI-3 or SLI-4 device reset handling + * routine, which will perform the proper device reset. + * + * Return codes + * PCI_ERS_RESULT_RECOVERED - the device has been recovered + * PCI_ERS_RESULT_DISCONNECT - device could not be recovered + **/ +static pci_ers_result_t +lpfc_io_slot_reset(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + pci_ers_result_t rc = PCI_ERS_RESULT_DISCONNECT; + + switch (phba->pci_dev_grp) { + case LPFC_PCI_DEV_LP: + rc = lpfc_io_slot_reset_s3(pdev); + break; + case LPFC_PCI_DEV_OC: + rc = lpfc_io_slot_reset_s4(pdev); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1428 Invalid PCI device group: 0x%x\n", + phba->pci_dev_grp); + break; + } + return rc; +} + +/** + * lpfc_io_resume - lpfc method for resuming PCI I/O operation + * @pdev: pointer to PCI device + * + * This routine is registered to the PCI subsystem for error handling. It + * is called when kernel error recovery tells the lpfc driver that it is + * OK to resume normal PCI operation after PCI bus error recovery. When + * this routine is invoked, it dispatches the action to the proper SLI-3 + * or SLI-4 device io_resume routine, which will resume the device operation. + **/ +static void +lpfc_io_resume(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + switch (phba->pci_dev_grp) { + case LPFC_PCI_DEV_LP: + lpfc_io_resume_s3(pdev); + break; + case LPFC_PCI_DEV_OC: + lpfc_io_resume_s4(pdev); + break; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "1429 Invalid PCI device group: 0x%x\n", + phba->pci_dev_grp); + break; + } + return; +} + +/** + * lpfc_sli4_oas_verify - Verify OAS is supported by this adapter + * @phba: pointer to lpfc hba data structure. + * + * This routine checks to see if OAS is supported for this adapter. If + * supported, the configure Flash Optimized Fabric flag is set. Otherwise, + * the enable oas flag is cleared and the pool created for OAS device data + * is destroyed. + * + **/ +void +lpfc_sli4_oas_verify(struct lpfc_hba *phba) +{ + + if (!phba->cfg_EnableXLane) + return; + + if (phba->sli4_hba.pc_sli4_params.oas_supported) { + phba->cfg_fof = 1; + } else { + phba->cfg_fof = 0; + if (phba->device_data_mem_pool) + mempool_destroy(phba->device_data_mem_pool); + phba->device_data_mem_pool = NULL; + } + + return; +} + +/** + * lpfc_fof_queue_setup - Set up all the fof queues + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to set up all the fof queues for the FC HBA + * operation. + * + * Return codes + * 0 - successful + * -ENOMEM - No available memory + **/ +int +lpfc_fof_queue_setup(struct lpfc_hba *phba) +{ + struct lpfc_sli_ring *pring; + int rc; + + rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX); + if (rc) + return -ENOMEM; + + if (phba->cfg_fof) { + + rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq, + phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP); + if (rc) + goto out_oas_cq; + + rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq, + phba->sli4_hba.oas_cq, LPFC_FCP); + if (rc) + goto out_oas_wq; + + /* Bind this CQ/WQ to the NVME ring */ + pring = phba->sli4_hba.oas_wq->pring; + pring->sli.sli4.wqp = + (void *)phba->sli4_hba.oas_wq; + phba->sli4_hba.oas_cq->pring = pring; + } + + return 0; + +out_oas_wq: + lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq); +out_oas_cq: + lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq); + return rc; + +} + +/** + * lpfc_fof_queue_create - Create all the fof queues + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to allocate all the fof queues for the FC HBA + * operation. For each SLI4 queue type, the parameters such as queue entry + * count (queue depth) shall be taken from the module parameter. For now, + * we just use some constant number as place holder. + * + * Return codes + * 0 - successful + * -ENOMEM - No availble memory + * -EIO - The mailbox failed to complete successfully. + **/ +int +lpfc_fof_queue_create(struct lpfc_hba *phba) +{ + struct lpfc_queue *qdesc; + uint32_t wqesize; + + /* Create FOF EQ */ + qdesc = lpfc_sli4_queue_alloc(phba, LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.eq_esize, + phba->sli4_hba.eq_ecount); + if (!qdesc) + goto out_error; + + qdesc->qe_valid = 1; + phba->sli4_hba.fof_eq = qdesc; + + if (phba->cfg_fof) { + + /* Create OAS CQ */ + if (phba->enab_exp_wqcq_pages) + qdesc = lpfc_sli4_queue_alloc(phba, + LPFC_EXPANDED_PAGE_SIZE, + phba->sli4_hba.cq_esize, + LPFC_CQE_EXP_COUNT); + else + qdesc = lpfc_sli4_queue_alloc(phba, + LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.cq_esize, + phba->sli4_hba.cq_ecount); + if (!qdesc) + goto out_error; + + qdesc->qe_valid = 1; + phba->sli4_hba.oas_cq = qdesc; + + /* Create OAS WQ */ + if (phba->enab_exp_wqcq_pages) { + wqesize = (phba->fcp_embed_io) ? + LPFC_WQE128_SIZE : phba->sli4_hba.wq_esize; + qdesc = lpfc_sli4_queue_alloc(phba, + LPFC_EXPANDED_PAGE_SIZE, + wqesize, + LPFC_WQE_EXP_COUNT); + } else + qdesc = lpfc_sli4_queue_alloc(phba, + LPFC_DEFAULT_PAGE_SIZE, + phba->sli4_hba.wq_esize, + phba->sli4_hba.wq_ecount); + + if (!qdesc) + goto out_error; + + phba->sli4_hba.oas_wq = qdesc; + list_add_tail(&qdesc->wq_list, &phba->sli4_hba.lpfc_wq_list); + + } + return 0; + +out_error: + lpfc_fof_queue_destroy(phba); + return -ENOMEM; +} + +/** + * lpfc_fof_queue_destroy - Destroy all the fof queues + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked to release all the SLI4 queues with the FC HBA + * operation. + * + * Return codes + * 0 - successful + **/ +int +lpfc_fof_queue_destroy(struct lpfc_hba *phba) +{ + /* Release FOF Event queue */ + if (phba->sli4_hba.fof_eq != NULL) { + lpfc_sli4_queue_free(phba->sli4_hba.fof_eq); + phba->sli4_hba.fof_eq = NULL; + } + + /* Release OAS Completion queue */ + if (phba->sli4_hba.oas_cq != NULL) { + lpfc_sli4_queue_free(phba->sli4_hba.oas_cq); + phba->sli4_hba.oas_cq = NULL; + } + + /* Release OAS Work queue */ + if (phba->sli4_hba.oas_wq != NULL) { + lpfc_sli4_queue_free(phba->sli4_hba.oas_wq); + phba->sli4_hba.oas_wq = NULL; + } + return 0; +} + +MODULE_DEVICE_TABLE(pci, lpfc_id_table); + +static const struct pci_error_handlers lpfc_err_handler = { + .error_detected = lpfc_io_error_detected, + .slot_reset = lpfc_io_slot_reset, + .resume = lpfc_io_resume, +}; + +static struct pci_driver lpfc_driver = { + .name = LPFC_DRIVER_NAME, + .id_table = lpfc_id_table, + .probe = lpfc_pci_probe_one, + .remove = lpfc_pci_remove_one, + .shutdown = lpfc_pci_remove_one, + .suspend = lpfc_pci_suspend_one, + .resume = lpfc_pci_resume_one, + .err_handler = &lpfc_err_handler, +}; + +static const struct file_operations lpfc_mgmt_fop = { + .owner = THIS_MODULE, +}; + +static struct miscdevice lpfc_mgmt_dev = { + .minor = MISC_DYNAMIC_MINOR, + .name = "lpfcmgmt", + .fops = &lpfc_mgmt_fop, +}; + +/** + * lpfc_init - lpfc module initialization routine + * + * This routine is to be invoked when the lpfc module is loaded into the + * kernel. The special kernel macro module_init() is used to indicate the + * role of this routine to the kernel as lpfc module entry point. + * + * Return codes + * 0 - successful + * -ENOMEM - FC attach transport failed + * all others - failed + */ +static int __init +lpfc_init(void) +{ + int error = 0; + + printk(LPFC_MODULE_DESC "\n"); + printk(LPFC_COPYRIGHT "\n"); + + error = misc_register(&lpfc_mgmt_dev); + if (error) + printk(KERN_ERR "Could not register lpfcmgmt device, " + "misc_register returned with status %d", error); + + lpfc_transport_functions.vport_create = lpfc_vport_create; + lpfc_transport_functions.vport_delete = lpfc_vport_delete; + lpfc_transport_template = + fc_attach_transport(&lpfc_transport_functions); + if (lpfc_transport_template == NULL) + return -ENOMEM; + lpfc_vport_transport_template = + fc_attach_transport(&lpfc_vport_transport_functions); + if (lpfc_vport_transport_template == NULL) { + fc_release_transport(lpfc_transport_template); + return -ENOMEM; + } + lpfc_nvme_cmd_template(); + lpfc_nvmet_cmd_template(); + + /* Initialize in case vector mapping is needed */ + lpfc_used_cpu = NULL; + lpfc_present_cpu = num_present_cpus(); + + error = pci_register_driver(&lpfc_driver); + if (error) { + fc_release_transport(lpfc_transport_template); + fc_release_transport(lpfc_vport_transport_template); + } + + return error; +} + +/** + * lpfc_exit - lpfc module removal routine + * + * This routine is invoked when the lpfc module is removed from the kernel. + * The special kernel macro module_exit() is used to indicate the role of + * this routine to the kernel as lpfc module exit point. + */ +static void __exit +lpfc_exit(void) +{ + misc_deregister(&lpfc_mgmt_dev); + pci_unregister_driver(&lpfc_driver); + fc_release_transport(lpfc_transport_template); + fc_release_transport(lpfc_vport_transport_template); + if (_dump_buf_data) { + printk(KERN_ERR "9062 BLKGRD: freeing %lu pages for " + "_dump_buf_data at 0x%p\n", + (1L << _dump_buf_data_order), _dump_buf_data); + free_pages((unsigned long)_dump_buf_data, _dump_buf_data_order); + } + + if (_dump_buf_dif) { + printk(KERN_ERR "9049 BLKGRD: freeing %lu pages for " + "_dump_buf_dif at 0x%p\n", + (1L << _dump_buf_dif_order), _dump_buf_dif); + free_pages((unsigned long)_dump_buf_dif, _dump_buf_dif_order); + } + kfree(lpfc_used_cpu); + idr_destroy(&lpfc_hba_index); +} + +module_init(lpfc_init); +module_exit(lpfc_exit); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION(LPFC_MODULE_DESC); +MODULE_AUTHOR("Broadcom"); +MODULE_VERSION("0:" LPFC_DRIVER_VERSION); -- cgit v1.2.3