diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 7280 |
1 files changed, 7280 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c new file mode 100644 index 000000000..ef1481326 --- /dev/null +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -0,0 +1,7280 @@ +/******************************************************************* + * This file is part of the Emulex Linux Device Driver for * + * Fibre Channel Host Bus Adapters. * + * Copyright (C) 2017-2022 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 <linux/ctype.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/aer.h> +#include <linux/gfp.h> +#include <linux/kernel.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_tcq.h> +#include <scsi/scsi_transport_fc.h> +#include <scsi/fc/fc_fs.h> + +#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_logmsg.h" +#include "lpfc_version.h" +#include "lpfc_compat.h" +#include "lpfc_crtn.h" +#include "lpfc_vport.h" +#include "lpfc_attr.h" + +#define LPFC_DEF_DEVLOSS_TMO 30 +#define LPFC_MIN_DEVLOSS_TMO 1 +#define LPFC_MAX_DEVLOSS_TMO 255 + +#define LPFC_MAX_INFO_TMP_LEN 100 +#define LPFC_INFO_MORE_STR "\nCould be more info...\n" +/* + * Write key size should be multiple of 4. If write key is changed + * make sure that library write key is also changed. + */ +#define LPFC_REG_WRITE_KEY_SIZE 4 +#define LPFC_REG_WRITE_KEY "EMLX" + +const char *const trunk_errmsg[] = { /* map errcode */ + "", /* There is no such error code at index 0*/ + "link negotiated speed does not match existing" + " trunk - link was \"low\" speed", + "link negotiated speed does not match" + " existing trunk - link was \"middle\" speed", + "link negotiated speed does not match existing" + " trunk - link was \"high\" speed", + "Attached to non-trunking port - F_Port", + "Attached to non-trunking port - N_Port", + "FLOGI response timeout", + "non-FLOGI frame received", + "Invalid FLOGI response", + "Trunking initialization protocol", + "Trunk peer device mismatch", +}; + +/** + * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules + * @incr: integer to convert. + * @hdw: ascii string holding converted integer plus a string terminator. + * + * Description: + * JEDEC Joint Electron Device Engineering Council. + * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii + * character string. The string is then terminated with a NULL in byte 9. + * Hex 0-9 becomes ascii '0' to '9'. + * Hex a-f becomes ascii '=' to 'B' capital B. + * + * Notes: + * Coded for 32 bit integers only. + **/ +static void +lpfc_jedec_to_ascii(int incr, char hdw[]) +{ + int i, j; + for (i = 0; i < 8; i++) { + j = (incr & 0xf); + if (j <= 9) + hdw[7 - i] = 0x30 + j; + else + hdw[7 - i] = 0x61 + j - 10; + incr = (incr >> 4); + } + hdw[8] = 0; + return; +} + +static ssize_t +lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct lpfc_cgn_info *cp = NULL; + struct lpfc_cgn_stat *cgs; + int len = 0; + int cpu; + u64 rcv, total; + char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; + + if (phba->cgn_i) + cp = (struct lpfc_cgn_info *)phba->cgn_i->virt; + + scnprintf(tmp, sizeof(tmp), + "Congestion Mgmt Info: E2Eattr %d Ver %d " + "CMF %d cnt %d\n", + phba->sli4_hba.pc_sli4_params.mi_ver, + cp ? cp->cgn_info_version : 0, + phba->sli4_hba.pc_sli4_params.cmf, phba->cmf_timer_cnt); + + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + if (!phba->sli4_hba.pc_sli4_params.cmf) + goto buffer_done; + + switch (phba->cgn_init_reg_signal) { + case EDC_CG_SIG_WARN_ONLY: + scnprintf(tmp, sizeof(tmp), + "Register: Init: Signal:WARN "); + break; + case EDC_CG_SIG_WARN_ALARM: + scnprintf(tmp, sizeof(tmp), + "Register: Init: Signal:WARN|ALARM "); + break; + default: + scnprintf(tmp, sizeof(tmp), + "Register: Init: Signal:NONE "); + break; + } + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + switch (phba->cgn_init_reg_fpin) { + case LPFC_CGN_FPIN_WARN: + scnprintf(tmp, sizeof(tmp), + "FPIN:WARN\n"); + break; + case LPFC_CGN_FPIN_ALARM: + scnprintf(tmp, sizeof(tmp), + "FPIN:ALARM\n"); + break; + case LPFC_CGN_FPIN_BOTH: + scnprintf(tmp, sizeof(tmp), + "FPIN:WARN|ALARM\n"); + break; + default: + scnprintf(tmp, sizeof(tmp), + "FPIN:NONE\n"); + break; + } + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + switch (phba->cgn_reg_signal) { + case EDC_CG_SIG_WARN_ONLY: + scnprintf(tmp, sizeof(tmp), + " Current: Signal:WARN "); + break; + case EDC_CG_SIG_WARN_ALARM: + scnprintf(tmp, sizeof(tmp), + " Current: Signal:WARN|ALARM "); + break; + default: + scnprintf(tmp, sizeof(tmp), + " Current: Signal:NONE "); + break; + } + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + switch (phba->cgn_reg_fpin) { + case LPFC_CGN_FPIN_WARN: + scnprintf(tmp, sizeof(tmp), + "FPIN:WARN ACQEcnt:%d\n", phba->cgn_acqe_cnt); + break; + case LPFC_CGN_FPIN_ALARM: + scnprintf(tmp, sizeof(tmp), + "FPIN:ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); + break; + case LPFC_CGN_FPIN_BOTH: + scnprintf(tmp, sizeof(tmp), + "FPIN:WARN|ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); + break; + default: + scnprintf(tmp, sizeof(tmp), + "FPIN:NONE ACQEcnt:%d\n", phba->cgn_acqe_cnt); + break; + } + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + if (phba->cmf_active_mode != phba->cgn_p.cgn_param_mode) { + switch (phba->cmf_active_mode) { + case LPFC_CFG_OFF: + scnprintf(tmp, sizeof(tmp), "Active: Mode:Off\n"); + break; + case LPFC_CFG_MANAGED: + scnprintf(tmp, sizeof(tmp), "Active: Mode:Managed\n"); + break; + case LPFC_CFG_MONITOR: + scnprintf(tmp, sizeof(tmp), "Active: Mode:Monitor\n"); + break; + default: + scnprintf(tmp, sizeof(tmp), "Active: Mode:Unknown\n"); + } + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + } + + switch (phba->cgn_p.cgn_param_mode) { + case LPFC_CFG_OFF: + scnprintf(tmp, sizeof(tmp), "Config: Mode:Off "); + break; + case LPFC_CFG_MANAGED: + scnprintf(tmp, sizeof(tmp), "Config: Mode:Managed "); + break; + case LPFC_CFG_MONITOR: + scnprintf(tmp, sizeof(tmp), "Config: Mode:Monitor "); + break; + default: + scnprintf(tmp, sizeof(tmp), "Config: Mode:Unknown "); + } + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + total = 0; + rcv = 0; + for_each_present_cpu(cpu) { + cgs = per_cpu_ptr(phba->cmf_stat, cpu); + total += atomic64_read(&cgs->total_bytes); + rcv += atomic64_read(&cgs->rcv_bytes); + } + + scnprintf(tmp, sizeof(tmp), + "IObusy:%d Info:%d Bytes: Rcv:x%llx Total:x%llx\n", + atomic_read(&phba->cmf_busy), + phba->cmf_active_info, rcv, total); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "Port_speed:%d Link_byte_cnt:%ld " + "Max_byte_per_interval:%ld\n", + lpfc_sli_port_speed_get(phba), + (unsigned long)phba->cmf_link_byte_count, + (unsigned long)phba->cmf_max_bytes_per_interval); + strlcat(buf, tmp, PAGE_SIZE); + +buffer_done: + len = strnlen(buf, PAGE_SIZE); + + if (unlikely(len >= (PAGE_SIZE - 1))) { + lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT, + "6312 Catching potential buffer " + "overflow > PAGE_SIZE = %lu bytes\n", + PAGE_SIZE); + strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), + LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1); + } + return len; +} + +/** + * lpfc_drvr_version_show - Return the Emulex driver string with version number + * @dev: class unused variable. + * @attr: device attribute, not used. + * @buf: on return contains the module description text. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); +} + +/** + * lpfc_enable_fip_show - Return the fip mode of the HBA + * @dev: class unused variable. + * @attr: device attribute, not used. + * @buf: on return contains the module description text. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + if (phba->hba_flag & HBA_FIP_SUPPORT) + return scnprintf(buf, PAGE_SIZE, "1\n"); + else + return scnprintf(buf, PAGE_SIZE, "0\n"); +} + +static ssize_t +lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = shost_priv(shost); + struct lpfc_hba *phba = vport->phba; + struct lpfc_nvmet_tgtport *tgtp; + struct nvme_fc_local_port *localport; + struct lpfc_nvme_lport *lport; + struct lpfc_nvme_rport *rport; + struct lpfc_nodelist *ndlp; + struct nvme_fc_remote_port *nrport; + struct lpfc_fc4_ctrl_stat *cstat; + uint64_t data1, data2, data3; + uint64_t totin, totout, tot; + char *statep; + int i; + int len = 0; + char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; + + if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { + len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); + return len; + } + if (phba->nvmet_support) { + if (!phba->targetport) { + len = scnprintf(buf, PAGE_SIZE, + "NVME Target: x%llx is not allocated\n", + wwn_to_u64(vport->fc_portname.u.wwn)); + return len; + } + /* Port state is only one of two values for now. */ + if (phba->targetport->port_id) + statep = "REGISTERED"; + else + statep = "INIT"; + scnprintf(tmp, sizeof(tmp), + "NVME Target Enabled State %s\n", + statep); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", + "NVME Target: lpfc", + phba->brd_no, + wwn_to_u64(vport->fc_portname.u.wwn), + wwn_to_u64(vport->fc_nodename.u.wwn), + phba->targetport->port_id); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) + >= PAGE_SIZE) + goto buffer_done; + + tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; + scnprintf(tmp, sizeof(tmp), + "LS: Rcv %08x Drop %08x Abort %08x\n", + atomic_read(&tgtp->rcv_ls_req_in), + atomic_read(&tgtp->rcv_ls_req_drop), + atomic_read(&tgtp->xmt_ls_abort)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + if (atomic_read(&tgtp->rcv_ls_req_in) != + atomic_read(&tgtp->rcv_ls_req_out)) { + scnprintf(tmp, sizeof(tmp), + "Rcv LS: in %08x != out %08x\n", + atomic_read(&tgtp->rcv_ls_req_in), + atomic_read(&tgtp->rcv_ls_req_out)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + } + + scnprintf(tmp, sizeof(tmp), + "LS: Xmt %08x Drop %08x Cmpl %08x\n", + atomic_read(&tgtp->xmt_ls_rsp), + atomic_read(&tgtp->xmt_ls_drop), + atomic_read(&tgtp->xmt_ls_rsp_cmpl)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "LS: RSP Abort %08x xb %08x Err %08x\n", + atomic_read(&tgtp->xmt_ls_rsp_aborted), + atomic_read(&tgtp->xmt_ls_rsp_xb_set), + atomic_read(&tgtp->xmt_ls_rsp_error)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "FCP: Rcv %08x Defer %08x Release %08x " + "Drop %08x\n", + atomic_read(&tgtp->rcv_fcp_cmd_in), + atomic_read(&tgtp->rcv_fcp_cmd_defer), + atomic_read(&tgtp->xmt_fcp_release), + atomic_read(&tgtp->rcv_fcp_cmd_drop)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + if (atomic_read(&tgtp->rcv_fcp_cmd_in) != + atomic_read(&tgtp->rcv_fcp_cmd_out)) { + scnprintf(tmp, sizeof(tmp), + "Rcv FCP: in %08x != out %08x\n", + atomic_read(&tgtp->rcv_fcp_cmd_in), + atomic_read(&tgtp->rcv_fcp_cmd_out)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + } + + scnprintf(tmp, sizeof(tmp), + "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " + "drop %08x\n", + atomic_read(&tgtp->xmt_fcp_read), + atomic_read(&tgtp->xmt_fcp_read_rsp), + atomic_read(&tgtp->xmt_fcp_write), + atomic_read(&tgtp->xmt_fcp_rsp), + atomic_read(&tgtp->xmt_fcp_drop)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "FCP Rsp Cmpl: %08x err %08x drop %08x\n", + atomic_read(&tgtp->xmt_fcp_rsp_cmpl), + atomic_read(&tgtp->xmt_fcp_rsp_error), + atomic_read(&tgtp->xmt_fcp_rsp_drop)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", + atomic_read(&tgtp->xmt_fcp_rsp_aborted), + atomic_read(&tgtp->xmt_fcp_rsp_xb_set), + atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "ABORT: Xmt %08x Cmpl %08x\n", + atomic_read(&tgtp->xmt_fcp_abort), + atomic_read(&tgtp->xmt_fcp_abort_cmpl)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", + atomic_read(&tgtp->xmt_abort_sol), + atomic_read(&tgtp->xmt_abort_unsol), + atomic_read(&tgtp->xmt_abort_rsp), + atomic_read(&tgtp->xmt_abort_rsp_error)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "DELAY: ctx %08x fod %08x wqfull %08x\n", + atomic_read(&tgtp->defer_ctx), + atomic_read(&tgtp->defer_fod), + atomic_read(&tgtp->defer_wqfull)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + /* 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; + + scnprintf(tmp, sizeof(tmp), + "IO_CTX: %08x WAIT: cur %08x tot %08x\n" + "CTX Outstanding %08llx\n\n", + phba->sli4_hba.nvmet_xri_cnt, + phba->sli4_hba.nvmet_io_wait_cnt, + phba->sli4_hba.nvmet_io_wait_total, + tot); + strlcat(buf, tmp, PAGE_SIZE); + goto buffer_done; + } + + localport = vport->localport; + if (!localport) { + len = scnprintf(buf, PAGE_SIZE, + "NVME Initiator x%llx is not allocated\n", + wwn_to_u64(vport->fc_portname.u.wwn)); + return len; + } + lport = (struct lpfc_nvme_lport *)localport->private; + if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "XRI Dist lpfc%d Total %d IO %d ELS %d\n", + phba->brd_no, + phba->sli4_hba.max_cfg_param.max_xri, + phba->sli4_hba.io_xri_max, + lpfc_sli4_get_els_iocb_cnt(phba)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + /* Port state is only one of two values for now. */ + if (localport->port_id) + statep = "ONLINE"; + else + statep = "UNKNOWN "; + + scnprintf(tmp, sizeof(tmp), + "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", + "NVME LPORT lpfc", + phba->brd_no, + wwn_to_u64(vport->fc_portname.u.wwn), + wwn_to_u64(vport->fc_nodename.u.wwn), + localport->port_id, statep); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + spin_lock_irq(shost->host_lock); + + list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { + nrport = NULL; + spin_lock(&ndlp->lock); + rport = lpfc_ndlp_get_nrport(ndlp); + if (rport) + nrport = rport->remoteport; + spin_unlock(&ndlp->lock); + if (!nrport) + continue; + + /* Port state is only one of two values for now. */ + switch (nrport->port_state) { + case FC_OBJSTATE_ONLINE: + statep = "ONLINE"; + break; + case FC_OBJSTATE_UNKNOWN: + statep = "UNKNOWN "; + break; + default: + statep = "UNSUPPORTED"; + break; + } + + /* Tab in to show lport ownership. */ + if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + if (phba->brd_no >= 10) { + if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + } + + scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", + nrport->port_name); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + + scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", + nrport->node_name); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + + scnprintf(tmp, sizeof(tmp), "DID x%06x ", + nrport->port_id); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + + /* An NVME rport can have multiple roles. */ + if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { + if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + } + if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { + if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + } + if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { + if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + } + if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | + FC_PORT_ROLE_NVME_TARGET | + FC_PORT_ROLE_NVME_DISCOVERY)) { + scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", + nrport->port_role); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + } + + scnprintf(tmp, sizeof(tmp), "%s\n", statep); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto unlock_buf_done; + } + spin_unlock_irq(shost->host_lock); + + if (!lport) + goto buffer_done; + + if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "LS: Xmt %010x Cmpl %010x Abort %08x\n", + atomic_read(&lport->fc4NvmeLsRequests), + atomic_read(&lport->fc4NvmeLsCmpls), + atomic_read(&lport->xmt_ls_abort)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", + atomic_read(&lport->xmt_ls_err), + atomic_read(&lport->cmpl_ls_xb), + atomic_read(&lport->cmpl_ls_err)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + totin = 0; + totout = 0; + for (i = 0; i < phba->cfg_hdw_queue; i++) { + cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; + tot = cstat->io_cmpls; + totin += tot; + data1 = cstat->input_requests; + data2 = cstat->output_requests; + data3 = cstat->control_requests; + totout += (data1 + data2 + data3); + } + scnprintf(tmp, sizeof(tmp), + "Total FCP Cmpl %016llx Issue %016llx " + "OutIO %016llx\n", + totin, totout, totout - totin); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "\tabort %08x noxri %08x nondlp %08x qdepth %08x " + "wqerr %08x err %08x\n", + atomic_read(&lport->xmt_fcp_abort), + atomic_read(&lport->xmt_fcp_noxri), + atomic_read(&lport->xmt_fcp_bad_ndlp), + atomic_read(&lport->xmt_fcp_qdepth), + atomic_read(&lport->xmt_fcp_wqerr), + atomic_read(&lport->xmt_fcp_err)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), + "FCP CMPL: xb %08x Err %08x\n", + atomic_read(&lport->cmpl_fcp_xb), + atomic_read(&lport->cmpl_fcp_err)); + strlcat(buf, tmp, PAGE_SIZE); + + /* host_lock is already unlocked. */ + goto buffer_done; + + unlock_buf_done: + spin_unlock_irq(shost->host_lock); + + buffer_done: + len = strnlen(buf, PAGE_SIZE); + + if (unlikely(len >= (PAGE_SIZE - 1))) { + lpfc_printf_log(phba, KERN_INFO, LOG_NVME, + "6314 Catching potential buffer " + "overflow > PAGE_SIZE = %lu bytes\n", + PAGE_SIZE); + strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), + LPFC_INFO_MORE_STR, + sizeof(LPFC_INFO_MORE_STR) + 1); + } + + return len; +} + +static ssize_t +lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = shost_priv(shost); + struct lpfc_hba *phba = vport->phba; + int len; + struct lpfc_fc4_ctrl_stat *cstat; + u64 data1, data2, data3; + u64 tot, totin, totout; + int i; + char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; + + if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || + (phba->sli_rev != LPFC_SLI_REV4)) + return 0; + + scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); + + totin = 0; + totout = 0; + for (i = 0; i < phba->cfg_hdw_queue; i++) { + cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; + tot = cstat->io_cmpls; + totin += tot; + data1 = cstat->input_requests; + data2 = cstat->output_requests; + data3 = cstat->control_requests; + totout += (data1 + data2 + data3); + + scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " + "IO %016llx ", i, data1, data2, data3); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + + scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", + tot, ((data1 + data2 + data3) - tot)); + if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) + goto buffer_done; + } + scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " + "OutIO %016llx\n", totin, totout, totout - totin); + strlcat(buf, tmp, PAGE_SIZE); + +buffer_done: + len = strnlen(buf, PAGE_SIZE); + + return len; +} + +static ssize_t +lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + if (phba->cfg_enable_bg) { + if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) + return scnprintf(buf, PAGE_SIZE, + "BlockGuard Enabled\n"); + else + return scnprintf(buf, PAGE_SIZE, + "BlockGuard Not Supported\n"); + } else + return scnprintf(buf, PAGE_SIZE, + "BlockGuard Disabled\n"); +} + +static ssize_t +lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%llu\n", + (unsigned long long)phba->bg_guard_err_cnt); +} + +static ssize_t +lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%llu\n", + (unsigned long long)phba->bg_apptag_err_cnt); +} + +static ssize_t +lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%llu\n", + (unsigned long long)phba->bg_reftag_err_cnt); +} + +/** + * lpfc_info_show - Return some pci info about the host in ascii + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the formatted text from lpfc_info(). + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_info_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *host = class_to_shost(dev); + + return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); +} + +/** + * lpfc_serialnum_show - Return the hba serial number in ascii + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the formatted text serial number. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); +} + +/** + * lpfc_temp_sensor_show - Return the temperature sensor level + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the formatted support level. + * + * Description: + * Returns a number indicating the temperature sensor level currently + * supported, zero or one in ascii. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); +} + +/** + * lpfc_modeldesc_show - Return the model description of the hba + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd model description. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); +} + +/** + * lpfc_modelname_show - Return the model name of the hba + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd model name. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_modelname_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); +} + +/** + * lpfc_programtype_show - Return the program type of the hba + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd program type. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_programtype_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); +} + +/** + * lpfc_vportnum_show - Return the port number in ascii of the hba + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains scsi vpd program type. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); +} + +/** + * lpfc_fwrev_show - Return the firmware rev running in the hba + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd program type. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t if_type; + uint8_t sli_family; + char fwrev[FW_REV_STR_SIZE]; + int len; + + lpfc_decode_firmware_rev(phba, fwrev, 1); + if_type = phba->sli4_hba.pc_sli4_params.if_type; + sli_family = phba->sli4_hba.pc_sli4_params.sli_family; + + if (phba->sli_rev < LPFC_SLI_REV4) + len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", + fwrev, phba->sli_rev); + else + len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", + fwrev, phba->sli_rev, if_type, sli_family); + + return len; +} + +/** + * lpfc_hdw_show - Return the jedec information about the hba + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the scsi vpd program type. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + char hdw[9]; + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + lpfc_vpd_t *vp = &phba->vpd; + + lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); + return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, + vp->rev.smRev, vp->rev.smFwRev); +} + +/** + * lpfc_option_rom_version_show - Return the adapter ROM FCode version + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the ROM and FCode ascii strings. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + char fwrev[FW_REV_STR_SIZE]; + + if (phba->sli_rev < LPFC_SLI_REV4) + return scnprintf(buf, PAGE_SIZE, "%s\n", + phba->OptionROMVersion); + + lpfc_decode_firmware_rev(phba, fwrev, 1); + return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); +} + +/** + * lpfc_link_state_show - Return the link state of the port + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains text describing the state of the link. + * + * Notes: + * The switch statement has no default so zero will be returned. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_link_state_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int len = 0; + + switch (phba->link_state) { + case LPFC_LINK_UNKNOWN: + case LPFC_WARM_START: + case LPFC_INIT_START: + case LPFC_INIT_MBX_CMDS: + case LPFC_LINK_DOWN: + case LPFC_HBA_ERROR: + if (phba->hba_flag & LINK_DISABLED) + len += scnprintf(buf + len, PAGE_SIZE-len, + "Link Down - User disabled\n"); + else + len += scnprintf(buf + len, PAGE_SIZE-len, + "Link Down\n"); + break; + case LPFC_LINK_UP: + case LPFC_CLEAR_LA: + case LPFC_HBA_READY: + len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); + + switch (vport->port_state) { + case LPFC_LOCAL_CFG_LINK: + len += scnprintf(buf + len, PAGE_SIZE-len, + "Configuring Link\n"); + break; + case LPFC_FDISC: + case LPFC_FLOGI: + case LPFC_FABRIC_CFG_LINK: + case LPFC_NS_REG: + case LPFC_NS_QRY: + case LPFC_BUILD_DISC_LIST: + case LPFC_DISC_AUTH: + len += scnprintf(buf + len, PAGE_SIZE - len, + "Discovery\n"); + break; + case LPFC_VPORT_READY: + len += scnprintf(buf + len, PAGE_SIZE - len, + "Ready\n"); + break; + + case LPFC_VPORT_FAILED: + len += scnprintf(buf + len, PAGE_SIZE - len, + "Failed\n"); + break; + + case LPFC_VPORT_UNKNOWN: + len += scnprintf(buf + len, PAGE_SIZE - len, + "Unknown\n"); + break; + } + if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { + if (vport->fc_flag & FC_PUBLIC_LOOP) + len += scnprintf(buf + len, PAGE_SIZE-len, + " Public Loop\n"); + else + len += scnprintf(buf + len, PAGE_SIZE-len, + " Private Loop\n"); + } else { + if (vport->fc_flag & FC_FABRIC) { + if (phba->sli_rev == LPFC_SLI_REV4 && + vport->port_type == LPFC_PHYSICAL_PORT && + phba->sli4_hba.fawwpn_flag & + LPFC_FAWWPN_FABRIC) + len += scnprintf(buf + len, + PAGE_SIZE - len, + " Fabric FA-PWWN\n"); + else + len += scnprintf(buf + len, + PAGE_SIZE - len, + " Fabric\n"); + } else { + len += scnprintf(buf + len, PAGE_SIZE-len, + " Point-2-Point\n"); + } + } + } + + if ((phba->sli_rev == LPFC_SLI_REV4) && + ((bf_get(lpfc_sli_intf_if_type, + &phba->sli4_hba.sli_intf) == + LPFC_SLI_INTF_IF_TYPE_6))) { + struct lpfc_trunk_link link = phba->trunk_link; + + if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) + len += scnprintf(buf + len, PAGE_SIZE - len, + "Trunk port 0: Link %s %s\n", + (link.link0.state == LPFC_LINK_UP) ? + "Up" : "Down. ", + trunk_errmsg[link.link0.fault]); + + if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) + len += scnprintf(buf + len, PAGE_SIZE - len, + "Trunk port 1: Link %s %s\n", + (link.link1.state == LPFC_LINK_UP) ? + "Up" : "Down. ", + trunk_errmsg[link.link1.fault]); + + if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) + len += scnprintf(buf + len, PAGE_SIZE - len, + "Trunk port 2: Link %s %s\n", + (link.link2.state == LPFC_LINK_UP) ? + "Up" : "Down. ", + trunk_errmsg[link.link2.fault]); + + if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) + len += scnprintf(buf + len, PAGE_SIZE - len, + "Trunk port 3: Link %s %s\n", + (link.link3.state == LPFC_LINK_UP) ? + "Up" : "Down. ", + trunk_errmsg[link.link3.fault]); + + } + + return len; +} + +/** + * lpfc_sli4_protocol_show - Return the fip mode of the HBA + * @dev: class unused variable. + * @attr: device attribute, not used. + * @buf: on return contains the module description text. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + if (phba->sli_rev < LPFC_SLI_REV4) + return scnprintf(buf, PAGE_SIZE, "fc\n"); + + if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { + if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) + return scnprintf(buf, PAGE_SIZE, "fcoe\n"); + if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) + return scnprintf(buf, PAGE_SIZE, "fc\n"); + } + return scnprintf(buf, PAGE_SIZE, "unknown\n"); +} + +/** + * lpfc_oas_supported_show - Return whether or not Optimized Access Storage + * (OAS) is supported. + * @dev: class unused variable. + * @attr: device attribute, not used. + * @buf: on return contains the module description text. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%d\n", + phba->sli4_hba.pc_sli4_params.oas_supported); +} + +/** + * lpfc_link_state_store - Transition the link_state on an HBA port + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: one or more lpfc_polling_flags values. + * @count: not used. + * + * Returns: + * -EINVAL if the buffer is not "up" or "down" + * return from link state change function if non-zero + * length of the buf on success + **/ +static ssize_t +lpfc_link_state_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + int status = -EINVAL; + + if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && + (phba->link_state == LPFC_LINK_DOWN)) + status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); + else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && + (phba->link_state >= LPFC_LINK_UP)) + status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); + + if (status == 0) + return strlen(buf); + else + return status; +} + +/** + * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the sum of fc mapped and unmapped. + * + * Description: + * Returns the ascii text number of the sum of the fc mapped and unmapped + * vport counts. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_num_discovered_ports_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + + return scnprintf(buf, PAGE_SIZE, "%d\n", + vport->fc_map_cnt + vport->fc_unmap_cnt); +} + +/** + * lpfc_issue_lip - Misnomer, name carried over from long ago + * @shost: Scsi_Host pointer. + * + * Description: + * Bring the link down gracefully then re-init the link. The firmware will + * re-init the fiber channel interface as required. Does not issue a LIP. + * + * Returns: + * -EPERM port offline or management commands are being blocked + * -ENOMEM cannot allocate memory for the mailbox command + * -EIO error sending the mailbox command + * zero for success + **/ +static int +lpfc_issue_lip(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + LPFC_MBOXQ_t *pmboxq; + int mbxstatus = MBXERR_ERROR; + + /* + * If the link is offline, disabled or BLOCK_MGMT_IO + * it doesn't make any sense to allow issue_lip + */ + if ((vport->fc_flag & FC_OFFLINE_MODE) || + (phba->hba_flag & LINK_DISABLED) || + (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) + return -EPERM; + + pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); + + if (!pmboxq) + return -ENOMEM; + + memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); + pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; + pmboxq->u.mb.mbxOwner = OWN_HOST; + + if ((vport->fc_flag & FC_PT2PT) && (vport->fc_flag & FC_PT2PT_NO_NVME)) + vport->fc_flag &= ~FC_PT2PT_NO_NVME; + + mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); + + if ((mbxstatus == MBX_SUCCESS) && + (pmboxq->u.mb.mbxStatus == 0 || + pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { + memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); + lpfc_init_link(phba, pmboxq, phba->cfg_topology, + phba->cfg_link_speed); + mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, + phba->fc_ratov * 2); + if ((mbxstatus == MBX_SUCCESS) && + (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, + "2859 SLI authentication is required " + "for INIT_LINK but has not done yet\n"); + } + + lpfc_set_loopback_flag(phba); + if (mbxstatus != MBX_TIMEOUT) + mempool_free(pmboxq, phba->mbox_mem_pool); + + if (mbxstatus == MBXERR_ERROR) + return -EIO; + + return 0; +} + +int +lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) +{ + int cnt = 0; + + spin_lock_irq(lock); + while (!list_empty(q)) { + spin_unlock_irq(lock); + msleep(20); + if (cnt++ > 250) { /* 5 secs */ + lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, + "0466 Outstanding IO when " + "bringing Adapter offline\n"); + return 0; + } + spin_lock_irq(lock); + } + spin_unlock_irq(lock); + return 1; +} + +/** + * lpfc_do_offline - Issues a mailbox command to bring the link down + * @phba: lpfc_hba pointer. + * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. + * + * Notes: + * Assumes any error from lpfc_do_offline() will be negative. + * Can wait up to 5 seconds for the port ring buffers count + * to reach zero, prints a warning if it is not zero and continues. + * lpfc_workq_post_event() returns a non-zero return code if call fails. + * + * Returns: + * -EIO error posting the event + * zero for success + **/ +static int +lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) +{ + struct completion online_compl; + struct lpfc_queue *qp = NULL; + struct lpfc_sli_ring *pring; + struct lpfc_sli *psli; + int status = 0; + int i; + int rc; + + init_completion(&online_compl); + rc = lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_OFFLINE_PREP); + if (rc == 0) + return -ENOMEM; + + wait_for_completion(&online_compl); + + if (status != 0) + return -EIO; + + psli = &phba->sli; + + /* + * If freeing the queues have already started, don't access them. + * Otherwise set FREE_WAIT to indicate that queues are being used + * to hold the freeing process until we finish. + */ + spin_lock_irq(&phba->hbalock); + if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { + psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; + } else { + spin_unlock_irq(&phba->hbalock); + goto skip_wait; + } + spin_unlock_irq(&phba->hbalock); + + /* Wait a little for things to settle down, but not + * long enough for dev loss timeout to expire. + */ + if (phba->sli_rev != LPFC_SLI_REV4) { + for (i = 0; i < psli->num_rings; i++) { + pring = &psli->sli3_ring[i]; + if (!lpfc_emptyq_wait(phba, &pring->txcmplq, + &phba->hbalock)) + goto out; + } + } else { + list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { + pring = qp->pring; + if (!pring) + continue; + if (!lpfc_emptyq_wait(phba, &pring->txcmplq, + &pring->ring_lock)) + goto out; + } + } +out: + spin_lock_irq(&phba->hbalock); + psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; + spin_unlock_irq(&phba->hbalock); + +skip_wait: + init_completion(&online_compl); + rc = lpfc_workq_post_event(phba, &status, &online_compl, type); + if (rc == 0) + return -ENOMEM; + + wait_for_completion(&online_compl); + + if (status != 0) + return -EIO; + + return 0; +} + +/** + * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA + * @phba: lpfc_hba pointer. + * + * Description: + * Issues a PCI secondary bus reset for the phba->pcidev. + * + * Notes: + * First walks the bus_list to ensure only PCI devices with Emulex + * vendor id, device ids that support hot reset, only one occurrence + * of function 0, and all ports on the bus are in offline mode to ensure the + * hot reset only affects one valid HBA. + * + * Returns: + * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 + * -ENODEV, NULL ptr to pcidev + * -EBADSLT, detected invalid device + * -EBUSY, port is not in offline state + * 0, successful + */ +static int +lpfc_reset_pci_bus(struct lpfc_hba *phba) +{ + struct pci_dev *pdev = phba->pcidev; + struct Scsi_Host *shost = NULL; + struct lpfc_hba *phba_other = NULL; + struct pci_dev *ptr = NULL; + int res; + + if (phba->cfg_enable_hba_reset != 2) + return -ENOTSUPP; + + if (!pdev) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); + return -ENODEV; + } + + res = lpfc_check_pci_resettable(phba); + if (res) + return res; + + /* Walk the list of devices on the pci_dev's bus */ + list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { + /* Check port is offline */ + shost = pci_get_drvdata(ptr); + if (shost) { + phba_other = + ((struct lpfc_vport *)shost->hostdata)->phba; + if (!(phba_other->pport->fc_flag & FC_OFFLINE_MODE)) { + lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, + "8349 WWPN = 0x%02x%02x%02x%02x" + "%02x%02x%02x%02x is not " + "offline!\n", + phba_other->wwpn[0], + phba_other->wwpn[1], + phba_other->wwpn[2], + phba_other->wwpn[3], + phba_other->wwpn[4], + phba_other->wwpn[5], + phba_other->wwpn[6], + phba_other->wwpn[7]); + return -EBUSY; + } + } + } + + /* Issue PCI bus reset */ + res = pci_reset_bus(pdev); + if (res) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "8350 PCI reset bus failed: %d\n", res); + } + + return res; +} + +/** + * lpfc_selective_reset - Offline then onlines the port + * @phba: lpfc_hba pointer. + * + * Description: + * If the port is configured to allow a reset then the hba is brought + * offline then online. + * + * Notes: + * Assumes any error from lpfc_do_offline() will be negative. + * Do not make this function static. + * + * Returns: + * lpfc_do_offline() return code if not zero + * -EIO reset not configured or error posting the event + * zero for success + **/ +int +lpfc_selective_reset(struct lpfc_hba *phba) +{ + struct completion online_compl; + int status = 0; + int rc; + + if (!phba->cfg_enable_hba_reset) + return -EACCES; + + if (!(phba->pport->fc_flag & FC_OFFLINE_MODE)) { + status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); + + if (status != 0) + return status; + } + + init_completion(&online_compl); + rc = lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_ONLINE); + if (rc == 0) + return -ENOMEM; + + wait_for_completion(&online_compl); + + if (status != 0) + return -EIO; + + return 0; +} + +/** + * lpfc_issue_reset - Selectively resets an adapter + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing the string "selective". + * @count: unused variable. + * + * Description: + * If the buf contains the string "selective" then lpfc_selective_reset() + * is called to perform the reset. + * + * Notes: + * Assumes any error from lpfc_selective_reset() will be negative. + * If lpfc_selective_reset() returns zero then the length of the buffer + * is returned which indicates success + * + * Returns: + * -EINVAL if the buffer does not contain the string "selective" + * length of buf if lpfc-selective_reset() if the call succeeds + * return value of lpfc_selective_reset() if the call fails +**/ +static ssize_t +lpfc_issue_reset(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int status = -EINVAL; + + if (!phba->cfg_enable_hba_reset) + return -EACCES; + + if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) + status = phba->lpfc_selective_reset(phba); + + if (status == 0) + return strlen(buf); + else + return status; +} + +/** + * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness + * @phba: lpfc_hba pointer. + * + * Description: + * SLI4 interface type-2 device to wait on the sliport status register for + * the readyness after performing a firmware reset. + * + * Returns: + * zero for success, -EPERM when port does not have privilege to perform the + * reset, -EIO when port timeout from recovering from the reset. + * + * Note: + * As the caller will interpret the return code by value, be careful in making + * change or addition to return codes. + **/ +int +lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) +{ + struct lpfc_register portstat_reg = {0}; + int i; + + msleep(100); + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + &portstat_reg.word0)) + return -EIO; + + /* verify if privileged for the request operation */ + if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && + !bf_get(lpfc_sliport_status_err, &portstat_reg)) + return -EPERM; + + /* wait for the SLI port firmware ready after firmware reset */ + for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { + msleep(10); + if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, + &portstat_reg.word0)) + continue; + if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) + continue; + if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) + continue; + if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) + continue; + break; + } + + if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) + return 0; + else + return -EIO; +} + +/** + * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc + * @phba: lpfc_hba pointer. + * @opcode: The sli4 config command opcode. + * + * Description: + * Request SLI4 interface type-2 device to perform a physical register set + * access. + * + * Returns: + * zero for success + **/ +static ssize_t +lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) +{ + struct completion online_compl; + struct pci_dev *pdev = phba->pcidev; + uint32_t before_fc_flag; + uint32_t sriov_nr_virtfn; + uint32_t reg_val; + int status = 0, rc = 0; + int job_posted = 1, sriov_err; + + if (!phba->cfg_enable_hba_reset) + return -EACCES; + + if ((phba->sli_rev < LPFC_SLI_REV4) || + (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < + LPFC_SLI_INTF_IF_TYPE_2)) + return -EPERM; + + /* Keep state if we need to restore back */ + before_fc_flag = phba->pport->fc_flag; + sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; + + if (opcode == LPFC_FW_DUMP) { + init_completion(&online_compl); + phba->fw_dump_cmpl = &online_compl; + } else { + /* Disable SR-IOV virtual functions if enabled */ + if (phba->cfg_sriov_nr_virtfn) { + pci_disable_sriov(pdev); + phba->cfg_sriov_nr_virtfn = 0; + } + + status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); + + if (status != 0) + return status; + + /* wait for the device to be quiesced before firmware reset */ + msleep(100); + } + + reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PDEV_CTL_OFFSET); + + if (opcode == LPFC_FW_DUMP) + reg_val |= LPFC_FW_DUMP_REQUEST; + else if (opcode == LPFC_FW_RESET) + reg_val |= LPFC_CTL_PDEV_CTL_FRST; + else if (opcode == LPFC_DV_RESET) + reg_val |= LPFC_CTL_PDEV_CTL_DRST; + + writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + + LPFC_CTL_PDEV_CTL_OFFSET); + /* flush */ + readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); + + /* delay driver action following IF_TYPE_2 reset */ + rc = lpfc_sli4_pdev_status_reg_wait(phba); + + if (rc == -EPERM) { + /* no privilege for reset */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "3150 No privilege to perform the requested " + "access: x%x\n", reg_val); + } else if (rc == -EIO) { + /* reset failed, there is nothing more we can do */ + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "3153 Fail to perform the requested " + "access: x%x\n", reg_val); + if (phba->fw_dump_cmpl) + phba->fw_dump_cmpl = NULL; + return rc; + } + + /* keep the original port state */ + if (before_fc_flag & FC_OFFLINE_MODE) { + if (phba->fw_dump_cmpl) + phba->fw_dump_cmpl = NULL; + goto out; + } + + /* Firmware dump will trigger an HA_ERATT event, and + * lpfc_handle_eratt_s4 routine already handles bringing the port back + * online. + */ + if (opcode == LPFC_FW_DUMP) { + wait_for_completion(phba->fw_dump_cmpl); + } else { + init_completion(&online_compl); + job_posted = lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_ONLINE); + if (!job_posted) + goto out; + + wait_for_completion(&online_compl); + } +out: + /* in any case, restore the virtual functions enabled as before */ + if (sriov_nr_virtfn) { + /* If fw_dump was performed, first disable to clean up */ + if (opcode == LPFC_FW_DUMP) { + pci_disable_sriov(pdev); + phba->cfg_sriov_nr_virtfn = 0; + } + + sriov_err = + lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); + if (!sriov_err) + phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; + } + + /* return proper error code */ + if (!rc) { + if (!job_posted) + rc = -ENOMEM; + else if (status) + rc = -EIO; + } + return rc; +} + +/** + * lpfc_nport_evt_cnt_show - Return the number of nport events + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the ascii number of nport events. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); +} + +static int +lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) +{ + LPFC_MBOXQ_t *mbox = NULL; + unsigned long val = 0; + char *pval = NULL; + int rc = 0; + + if (!strncmp("enable", buff_out, + strlen("enable"))) { + pval = buff_out + strlen("enable") + 1; + rc = kstrtoul(pval, 0, &val); + if (rc) + return rc; /* Invalid number */ + } else if (!strncmp("disable", buff_out, + strlen("disable"))) { + val = 0; + } else { + return -EINVAL; /* Invalid command */ + } + + switch (val) { + case 0: + val = 0x0; /* Disable */ + break; + case 2: + val = 0x1; /* Enable two port trunk */ + break; + case 4: + val = 0x2; /* Enable four port trunk */ + break; + default: + return -EINVAL; + } + + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, + "0070 Set trunk mode with val %ld ", val); + + mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!mbox) + return -ENOMEM; + + lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, + LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, + 12, LPFC_SLI4_MBX_EMBED); + + bf_set(lpfc_mbx_set_trunk_mode, + &mbox->u.mqe.un.set_trunk_mode, + val); + rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); + if (rc) + lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, + "0071 Set trunk mode failed with status: %d", + rc); + mempool_free(mbox, phba->mbox_mem_pool); + + return 0; +} + +/** + * lpfc_board_mode_show - Return the state of the board + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the state of the adapter. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + char * state; + + if (phba->link_state == LPFC_HBA_ERROR) + state = "error"; + else if (phba->link_state == LPFC_WARM_START) + state = "warm start"; + else if (phba->link_state == LPFC_INIT_START) + state = "offline"; + else + state = "online"; + + return scnprintf(buf, PAGE_SIZE, "%s\n", state); +} + +/** + * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing one of the strings "online", "offline", "warm" or "error". + * @count: unused variable. + * + * Returns: + * -EACCES if enable hba reset not enabled + * -EINVAL if the buffer does not contain a valid string (see above) + * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails + * buf length greater than zero indicates success + **/ +static ssize_t +lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct completion online_compl; + char *board_mode_str = NULL; + int status = 0; + int rc; + + if (!phba->cfg_enable_hba_reset) { + status = -EACCES; + goto board_mode_out; + } + + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "3050 lpfc_board_mode set to %s\n", buf); + + init_completion(&online_compl); + + if(strncmp(buf, "online", sizeof("online") - 1) == 0) { + rc = lpfc_workq_post_event(phba, &status, &online_compl, + LPFC_EVT_ONLINE); + if (rc == 0) { + status = -ENOMEM; + goto board_mode_out; + } + wait_for_completion(&online_compl); + if (status) + status = -EIO; + } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) + status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); + else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) + if (phba->sli_rev == LPFC_SLI_REV4) + status = -EINVAL; + else + status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); + else if (strncmp(buf, "error", sizeof("error") - 1) == 0) + if (phba->sli_rev == LPFC_SLI_REV4) + status = -EINVAL; + else + status = lpfc_do_offline(phba, LPFC_EVT_KILL); + else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) + status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); + else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) + status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); + else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) + status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); + else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) + == 0) + status = lpfc_reset_pci_bus(phba); + else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) + lpfc_issue_hb_tmo(phba); + else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) + status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); + else + status = -EINVAL; + +board_mode_out: + if (!status) + return strlen(buf); + else { + board_mode_str = strchr(buf, '\n'); + if (board_mode_str) + *board_mode_str = '\0'; + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "3097 Failed \"%s\", status(%d), " + "fc_flag(x%x)\n", + buf, status, phba->pport->fc_flag); + return status; + } +} + +/** + * lpfc_get_hba_info - Return various bits of informaton about the adapter + * @phba: pointer to the adapter structure. + * @mxri: max xri count. + * @axri: available xri count. + * @mrpi: max rpi count. + * @arpi: available rpi count. + * @mvpi: max vpi count. + * @avpi: available vpi count. + * + * Description: + * If an integer pointer for an count is not null then the value for the + * count is returned. + * + * Returns: + * zero on error + * one for success + **/ +static int +lpfc_get_hba_info(struct lpfc_hba *phba, + uint32_t *mxri, uint32_t *axri, + uint32_t *mrpi, uint32_t *arpi, + uint32_t *mvpi, uint32_t *avpi) +{ + struct lpfc_mbx_read_config *rd_config; + LPFC_MBOXQ_t *pmboxq; + MAILBOX_t *pmb; + int rc = 0; + uint32_t max_vpi; + + /* + * prevent udev from issuing mailbox commands until the port is + * configured. + */ + if (phba->link_state < LPFC_LINK_DOWN || + !phba->mbox_mem_pool || + (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) + return 0; + + if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) + return 0; + + pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmboxq) + return 0; + memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); + + pmb = &pmboxq->u.mb; + pmb->mbxCommand = MBX_READ_CONFIG; + pmb->mbxOwner = OWN_HOST; + pmboxq->ctx_buf = NULL; + + if (phba->pport->fc_flag & FC_OFFLINE_MODE) + rc = MBX_NOT_FINISHED; + else + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + + if (rc != MBX_SUCCESS) { + if (rc != MBX_TIMEOUT) + mempool_free(pmboxq, phba->mbox_mem_pool); + return 0; + } + + if (phba->sli_rev == LPFC_SLI_REV4) { + rd_config = &pmboxq->u.mqe.un.rd_config; + if (mrpi) + *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); + if (arpi) + *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - + phba->sli4_hba.max_cfg_param.rpi_used; + if (mxri) + *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); + if (axri) + *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - + phba->sli4_hba.max_cfg_param.xri_used; + + /* Account for differences with SLI-3. Get vpi count from + * mailbox data and subtract one for max vpi value. + */ + max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? + (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; + + /* Limit the max we support */ + if (max_vpi > LPFC_MAX_VPI) + max_vpi = LPFC_MAX_VPI; + if (mvpi) + *mvpi = max_vpi; + if (avpi) + *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; + } else { + if (mrpi) + *mrpi = pmb->un.varRdConfig.max_rpi; + if (arpi) + *arpi = pmb->un.varRdConfig.avail_rpi; + if (mxri) + *mxri = pmb->un.varRdConfig.max_xri; + if (axri) + *axri = pmb->un.varRdConfig.avail_xri; + if (mvpi) + *mvpi = pmb->un.varRdConfig.max_vpi; + if (avpi) { + /* avail_vpi is only valid if link is up and ready */ + if (phba->link_state == LPFC_HBA_READY) + *avpi = pmb->un.varRdConfig.avail_vpi; + else + *avpi = pmb->un.varRdConfig.max_vpi; + } + } + + mempool_free(pmboxq, phba->mbox_mem_pool); + return 1; +} + +/** + * lpfc_max_rpi_show - Return maximum rpi + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the maximum rpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mrpi count. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t cnt; + + if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) + return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); + return scnprintf(buf, PAGE_SIZE, "Unknown\n"); +} + +/** + * lpfc_used_rpi_show - Return maximum rpi minus available rpi + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing the used rpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t cnt, acnt; + + if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) + return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); + return scnprintf(buf, PAGE_SIZE, "Unknown\n"); +} + +/** + * lpfc_max_xri_show - Return maximum xri + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the maximum xri count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mrpi count. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_max_xri_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t cnt; + + if (lpfc_get_hba_info(phba, &cnt, NULL, NULL, NULL, NULL, NULL)) + return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); + return scnprintf(buf, PAGE_SIZE, "Unknown\n"); +} + +/** + * lpfc_used_xri_show - Return maximum xpi minus the available xpi + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the used xri count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t cnt, acnt; + + if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) + return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); + return scnprintf(buf, PAGE_SIZE, "Unknown\n"); +} + +/** + * lpfc_max_vpi_show - Return maximum vpi + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the maximum vpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mvpi count. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_max_vpi_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t cnt; + + if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, NULL)) + return scnprintf(buf, PAGE_SIZE, "%d\n", cnt); + return scnprintf(buf, PAGE_SIZE, "Unknown\n"); +} + +/** + * lpfc_used_vpi_show - Return maximum vpi minus the available vpi + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the used vpi count in decimal or "Unknown". + * + * Description: + * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. + * If lpfc_get_hba_info() returns zero (failure) the buffer text is set + * to "Unknown" and the buffer length is returned, therefore the caller + * must check for "Unknown" in the buffer to detect a failure. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t cnt, acnt; + + if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) + return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); + return scnprintf(buf, PAGE_SIZE, "Unknown\n"); +} + +/** + * lpfc_npiv_info_show - Return text about NPIV support for the adapter + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: text that must be interpreted to determine if npiv is supported. + * + * Description: + * Buffer will contain text indicating npiv is not suppoerted on the port, + * the port is an NPIV physical port, or it is an npiv virtual port with + * the id of the vport. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + if (!(phba->max_vpi)) + return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); + if (vport->port_type == LPFC_PHYSICAL_PORT) + return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); + return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); +} + +/** + * lpfc_poll_show - Return text about poll support for the adapter + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the cfg_poll in hex. + * + * Notes: + * cfg_poll should be a lpfc_polling_flags type. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_poll_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); +} + +/** + * lpfc_poll_store - Set the value of cfg_poll for the adapter + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: one or more lpfc_polling_flags values. + * @count: not used. + * + * Notes: + * buf contents converted to integer and checked for a valid value. + * + * Returns: + * -EINVAL if the buffer connot be converted or is out of range + * length of the buf on success + **/ +static ssize_t +lpfc_poll_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint32_t creg_val; + uint32_t old_val; + int val=0; + + if (!isdigit(buf[0])) + return -EINVAL; + + if (sscanf(buf, "%i", &val) != 1) + return -EINVAL; + + if ((val & 0x3) != val) + return -EINVAL; + + if (phba->sli_rev == LPFC_SLI_REV4) + val = 0; + + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "3051 lpfc_poll changed from %d to %d\n", + phba->cfg_poll, val); + + spin_lock_irq(&phba->hbalock); + + old_val = phba->cfg_poll; + + if (val & ENABLE_FCP_RING_POLLING) { + if ((val & DISABLE_FCP_RING_INT) && + !(old_val & DISABLE_FCP_RING_INT)) { + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + spin_unlock_irq(&phba->hbalock); + return -EINVAL; + } + creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); + writel(creg_val, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + + lpfc_poll_start_timer(phba); + } + } else if (val != 0x0) { + spin_unlock_irq(&phba->hbalock); + return -EINVAL; + } + + if (!(val & DISABLE_FCP_RING_INT) && + (old_val & DISABLE_FCP_RING_INT)) + { + spin_unlock_irq(&phba->hbalock); + del_timer(&phba->fcp_poll_timer); + spin_lock_irq(&phba->hbalock); + if (lpfc_readl(phba->HCregaddr, &creg_val)) { + spin_unlock_irq(&phba->hbalock); + return -EINVAL; + } + creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); + writel(creg_val, phba->HCregaddr); + readl(phba->HCregaddr); /* flush */ + } + + phba->cfg_poll = val; + + spin_unlock_irq(&phba->hbalock); + + return strlen(buf); +} + +/** + * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the formatted support level. + * + * Description: + * Returns the maximum number of virtual functions a physical function can + * support, 0 will be returned if called on virtual function. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_sriov_hw_max_virtfn_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + uint16_t max_nr_virtfn; + + max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); + return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); +} + +/** + * lpfc_enable_bbcr_set: Sets an attribute value. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Description: + * Validates the min and max values then sets the + * adapter config field if in the valid range. prints error message + * and does not set the parameter if invalid. + * + * Returns: + * zero on success + * -EINVAL if val is invalid + */ +static ssize_t +lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) +{ + if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3068 lpfc_enable_bbcr changed from %d to " + "%d\n", phba->cfg_enable_bbcr, val); + phba->cfg_enable_bbcr = val; + return 0; + } + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " + "1\n", val); + return -EINVAL; +} + +/* + * lpfc_param_show - Return a cfg attribute value in decimal + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_show. + * + * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in decimal. + * + * Returns: size of formatted string. + **/ +#define lpfc_param_show(attr) \ +static ssize_t \ +lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + struct Scsi_Host *shost = class_to_shost(dev);\ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ + struct lpfc_hba *phba = vport->phba;\ + return scnprintf(buf, PAGE_SIZE, "%d\n",\ + phba->cfg_##attr);\ +} + +/* + * lpfc_param_hex_show - Return a cfg attribute value in hex + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_show + * + * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in hexadecimal. + * + * Returns: size of formatted string. + **/ +#define lpfc_param_hex_show(attr) \ +static ssize_t \ +lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + struct Scsi_Host *shost = class_to_shost(dev);\ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ + struct lpfc_hba *phba = vport->phba;\ + uint val = 0;\ + val = phba->cfg_##attr;\ + return scnprintf(buf, PAGE_SIZE, "%#x\n",\ + phba->cfg_##attr);\ +} + +/* + * lpfc_param_init - Initializes a cfg attribute + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_init. The macro also + * takes a default argument, a minimum and maximum argument. + * + * lpfc_##attr##_init: Initializes an attribute. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Validates the min and max values then sets the adapter config field + * accordingly, or uses the default if out of range and prints an error message. + * + * Returns: + * zero on success + * -EINVAL if default used + **/ +#define lpfc_param_init(attr, default, minval, maxval) \ +static int \ +lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ +{ \ + if (lpfc_rangecheck(val, minval, maxval)) {\ + phba->cfg_##attr = val;\ + return 0;\ + }\ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ + "0449 lpfc_"#attr" attribute cannot be set to %d, "\ + "allowed range is ["#minval", "#maxval"]\n", val); \ + phba->cfg_##attr = default;\ + return -EINVAL;\ +} + +/* + * lpfc_param_set - Set a cfg attribute value + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_set + * + * lpfc_##attr##_set: Sets an attribute value. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Description: + * Validates the min and max values then sets the + * adapter config field if in the valid range. prints error message + * and does not set the parameter if invalid. + * + * Returns: + * zero on success + * -EINVAL if val is invalid + **/ +#define lpfc_param_set(attr, default, minval, maxval) \ +static int \ +lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ +{ \ + if (lpfc_rangecheck(val, minval, maxval)) {\ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ + "3052 lpfc_" #attr " changed from %d to %d\n", \ + phba->cfg_##attr, val); \ + phba->cfg_##attr = val;\ + return 0;\ + }\ + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ + "0450 lpfc_"#attr" attribute cannot be set to %d, "\ + "allowed range is ["#minval", "#maxval"]\n", val); \ + return -EINVAL;\ +} + +/* + * lpfc_param_store - Set a vport attribute value + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_store. + * + * lpfc_##attr##_store: Set an sttribute value. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: contains the attribute value in ascii. + * @count: not used. + * + * Description: + * Convert the ascii text number to an integer, then + * use the lpfc_##attr##_set function to set the value. + * + * Returns: + * -EINVAL if val is invalid or lpfc_##attr##_set() fails + * length of buffer upon success. + **/ +#define lpfc_param_store(attr) \ +static ssize_t \ +lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct Scsi_Host *shost = class_to_shost(dev);\ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ + struct lpfc_hba *phba = vport->phba;\ + uint val = 0;\ + if (!isdigit(buf[0]))\ + return -EINVAL;\ + if (sscanf(buf, "%i", &val) != 1)\ + return -EINVAL;\ + if (lpfc_##attr##_set(phba, val) == 0) \ + return strlen(buf);\ + else \ + return -EINVAL;\ +} + +/* + * lpfc_vport_param_show - Return decimal formatted cfg attribute value + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_show + * + * lpfc_##attr##_show: prints the attribute value in decimal. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in decimal. + * + * Returns: length of formatted string. + **/ +#define lpfc_vport_param_show(attr) \ +static ssize_t \ +lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + struct Scsi_Host *shost = class_to_shost(dev);\ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ + return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\ +} + +/* + * lpfc_vport_param_hex_show - Return hex formatted attribute value + * + * Description: + * Macro that given an attr e.g. + * hba_queue_depth expands into a function with the name + * lpfc_hba_queue_depth_show + * + * lpfc_##attr##_show: prints the attribute value in hexadecimal. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: on return contains the attribute value in hexadecimal. + * + * Returns: length of formatted string. + **/ +#define lpfc_vport_param_hex_show(attr) \ +static ssize_t \ +lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ + char *buf) \ +{ \ + struct Scsi_Host *shost = class_to_shost(dev);\ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ + return scnprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ +} + +/* + * lpfc_vport_param_init - Initialize a vport cfg attribute + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_init. The macro also + * takes a default argument, a minimum and maximum argument. + * + * lpfc_##attr##_init: validates the min and max values then sets the + * adapter config field accordingly, or uses the default if out of range + * and prints an error message. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Returns: + * zero on success + * -EINVAL if default used + **/ +#define lpfc_vport_param_init(attr, default, minval, maxval) \ +static int \ +lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ +{ \ + if (lpfc_rangecheck(val, minval, maxval)) {\ + vport->cfg_##attr = val;\ + return 0;\ + }\ + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ + "0423 lpfc_"#attr" attribute cannot be set to %d, "\ + "allowed range is ["#minval", "#maxval"]\n", val); \ + vport->cfg_##attr = default;\ + return -EINVAL;\ +} + +/* + * lpfc_vport_param_set - Set a vport cfg attribute + * + * Description: + * Macro that given an attr e.g. hba_queue_depth expands + * into a function with the name lpfc_hba_queue_depth_set + * + * lpfc_##attr##_set: validates the min and max values then sets the + * adapter config field if in the valid range. prints error message + * and does not set the parameter if invalid. + * @phba: pointer the the adapter structure. + * @val: integer attribute value. + * + * Returns: + * zero on success + * -EINVAL if val is invalid + **/ +#define lpfc_vport_param_set(attr, default, minval, maxval) \ +static int \ +lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ +{ \ + if (lpfc_rangecheck(val, minval, maxval)) {\ + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ + "3053 lpfc_" #attr \ + " changed from %d (x%x) to %d (x%x)\n", \ + vport->cfg_##attr, vport->cfg_##attr, \ + val, val); \ + vport->cfg_##attr = val;\ + return 0;\ + }\ + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ + "0424 lpfc_"#attr" attribute cannot be set to %d, "\ + "allowed range is ["#minval", "#maxval"]\n", val); \ + return -EINVAL;\ +} + +/* + * lpfc_vport_param_store - Set a vport attribute + * + * Description: + * Macro that given an attr e.g. hba_queue_depth + * expands into a function with the name lpfc_hba_queue_depth_store + * + * lpfc_##attr##_store: convert the ascii text number to an integer, then + * use the lpfc_##attr##_set function to set the value. + * @cdev: class device that is converted into a Scsi_host. + * @buf: contains the attribute value in decimal. + * @count: not used. + * + * Returns: + * -EINVAL if val is invalid or lpfc_##attr##_set() fails + * length of buffer upon success. + **/ +#define lpfc_vport_param_store(attr) \ +static ssize_t \ +lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ + const char *buf, size_t count) \ +{ \ + struct Scsi_Host *shost = class_to_shost(dev);\ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ + uint val = 0;\ + if (!isdigit(buf[0]))\ + return -EINVAL;\ + if (sscanf(buf, "%i", &val) != 1)\ + return -EINVAL;\ + if (lpfc_##attr##_set(vport, val) == 0) \ + return strlen(buf);\ + else \ + return -EINVAL;\ +} + + +static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); +static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); +static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); +static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); +static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); +static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); +static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); +static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); +static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); +static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); +static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); +static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); +static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); +static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); +static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, + lpfc_link_state_store); +static DEVICE_ATTR(option_rom_version, S_IRUGO, + lpfc_option_rom_version_show, NULL); +static DEVICE_ATTR(num_discovered_ports, S_IRUGO, + lpfc_num_discovered_ports_show, NULL); +static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); +static DEVICE_ATTR_RO(lpfc_drvr_version); +static DEVICE_ATTR_RO(lpfc_enable_fip); +static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, + lpfc_board_mode_show, lpfc_board_mode_store); +static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); +static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); +static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); +static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); +static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); +static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); +static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); +static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); +static DEVICE_ATTR_RO(lpfc_temp_sensor); +static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); +static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); +static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, + NULL); +static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); + +#define WWN_SZ 8 +/** + * lpfc_wwn_set - Convert string to the 8 byte WWN value. + * @buf: WWN string. + * @cnt: Length of string. + * @wwn: Array to receive converted wwn value. + * + * Returns: + * -EINVAL if the buffer does not contain a valid wwn + * 0 success + **/ +static size_t +lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) +{ + unsigned int i, j; + + /* Count may include a LF at end of string */ + if (buf[cnt-1] == '\n') + cnt--; + + if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || + ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) + return -EINVAL; + + memset(wwn, 0, WWN_SZ); + + /* Validate and store the new name */ + for (i = 0, j = 0; i < 16; i++) { + if ((*buf >= 'a') && (*buf <= 'f')) + j = ((j << 4) | ((*buf++ - 'a') + 10)); + else if ((*buf >= 'A') && (*buf <= 'F')) + j = ((j << 4) | ((*buf++ - 'A') + 10)); + else if ((*buf >= '0') && (*buf <= '9')) + j = ((j << 4) | (*buf++ - '0')); + else + return -EINVAL; + if (i % 2) { + wwn[i/2] = j & 0xff; + j = 0; + } + } + return 0; +} + + +/** + * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for + * Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * + * Returns: + * value of count + **/ +static ssize_t +lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + return scnprintf(buf, PAGE_SIZE, "0x%llx\n", + wwn_to_u64(phba->cfg_oas_tgt_wwpn)); +} + +/** + * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for + * Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * @count: Size of the data buffer. + * + * Returns: + * -EINVAL count is invalid, invalid wwpn byte invalid + * -EPERM oas is not supported by hba + * value of count on success + **/ +static ssize_t +lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + unsigned int cnt = count; + uint8_t wwpn[WWN_SZ]; + int rc; + + if (!phba->cfg_fof) + return -EPERM; + + /* count may include a LF at end of string */ + if (buf[cnt-1] == '\n') + cnt--; + + rc = lpfc_wwn_set(buf, cnt, wwpn); + if (rc) + return rc; + + memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); + memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); + if (wwn_to_u64(wwpn) == 0) + phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; + else + phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; + phba->cfg_oas_flags &= ~OAS_LUN_VALID; + phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; + return count; +} +static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, + lpfc_oas_tgt_show, lpfc_oas_tgt_store); + +/** + * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for + * Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * + * Returns: + * value of count + **/ +static ssize_t +lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); +} + +/** + * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for + * Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * @count: Size of the data buffer. + * + * Returns: + * -EINVAL count is invalid, invalid wwpn byte invalid + * -EPERM oas is not supported by hba + * value of count on success + **/ +static ssize_t +lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + unsigned int cnt = count; + unsigned long val; + int ret; + + if (!phba->cfg_fof) + return -EPERM; + + /* count may include a LF at end of string */ + if (buf[cnt-1] == '\n') + cnt--; + + ret = kstrtoul(buf, 0, &val); + if (ret || (val > 0x7f)) + return -EINVAL; + + if (val) + phba->cfg_oas_priority = (uint8_t)val; + else + phba->cfg_oas_priority = phba->cfg_XLanePriority; + return count; +} +static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, + lpfc_oas_priority_show, lpfc_oas_priority_store); + +/** + * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled + * for Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * + * Returns: + * value of count on success + **/ +static ssize_t +lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + return scnprintf(buf, PAGE_SIZE, "0x%llx\n", + wwn_to_u64(phba->cfg_oas_vpt_wwpn)); +} + +/** + * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled + * for Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * @count: Size of the data buffer. + * + * Returns: + * -EINVAL count is invalid, invalid wwpn byte invalid + * -EPERM oas is not supported by hba + * value of count on success + **/ +static ssize_t +lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + unsigned int cnt = count; + uint8_t wwpn[WWN_SZ]; + int rc; + + if (!phba->cfg_fof) + return -EPERM; + + /* count may include a LF at end of string */ + if (buf[cnt-1] == '\n') + cnt--; + + rc = lpfc_wwn_set(buf, cnt, wwpn); + if (rc) + return rc; + + memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); + memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); + if (wwn_to_u64(wwpn) == 0) + phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; + else + phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; + phba->cfg_oas_flags &= ~OAS_LUN_VALID; + if (phba->cfg_oas_priority == 0) + phba->cfg_oas_priority = phba->cfg_XLanePriority; + phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; + return count; +} +static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, + lpfc_oas_vpt_show, lpfc_oas_vpt_store); + +/** + * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) + * of whether luns will be enabled or disabled + * for Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * + * Returns: + * size of formatted string. + **/ +static ssize_t +lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); +} + +/** + * lpfc_oas_lun_state_store - Store the state (enabled or disabled) + * of whether luns will be enabled or disabled + * for Optimized Access Storage (OAS) operations. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * @count: Size of the data buffer. + * + * Returns: + * -EINVAL count is invalid, invalid wwpn byte invalid + * -EPERM oas is not supported by hba + * value of count on success + **/ +static ssize_t +lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + int val = 0; + + if (!phba->cfg_fof) + return -EPERM; + + if (!isdigit(buf[0])) + return -EINVAL; + + if (sscanf(buf, "%i", &val) != 1) + return -EINVAL; + + if ((val != 0) && (val != 1)) + return -EINVAL; + + phba->cfg_oas_lun_state = val; + return strlen(buf); +} +static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, + lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); + +/** + * lpfc_oas_lun_status_show - Return the status of the Optimized Access + * Storage (OAS) lun returned by the + * lpfc_oas_lun_show function. + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * + * Returns: + * size of formatted string. + **/ +static ssize_t +lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) + return -EFAULT; + + return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); +} +static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, + lpfc_oas_lun_status_show, NULL); + + +/** + * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage + * (OAS) operations. + * @phba: lpfc_hba pointer. + * @vpt_wwpn: wwpn of the vport associated with the returned lun + * @tgt_wwpn: wwpn of the target associated with the returned lun + * @lun: the fc lun for setting oas state. + * @oas_state: the oas state to be set to the lun. + * @pri: priority + * + * Returns: + * SUCCESS : 0 + * -EPERM OAS is not enabled or not supported by this port. + * + */ +static size_t +lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], + uint8_t tgt_wwpn[], uint64_t lun, + uint32_t oas_state, uint8_t pri) +{ + + int rc = 0; + + if (!phba->cfg_fof) + return -EPERM; + + if (oas_state) { + if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, + (struct lpfc_name *)tgt_wwpn, + lun, pri)) + rc = -ENOMEM; + } else { + lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, + (struct lpfc_name *)tgt_wwpn, lun, pri); + } + return rc; + +} + +/** + * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized + * Access Storage (OAS) operations. + * @phba: lpfc_hba pointer. + * @vpt_wwpn: wwpn of the vport associated with the returned lun + * @tgt_wwpn: wwpn of the target associated with the returned lun + * @lun_status: status of the lun returned lun + * @lun_pri: priority of the lun returned lun + * + * Returns the first or next lun enabled for OAS operations for the vport/target + * specified. If a lun is found, its vport wwpn, target wwpn and status is + * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. + * + * Return: + * lun that is OAS enabled for the vport/target + * NOT_OAS_ENABLED_LUN when no oas enabled lun found. + */ +static uint64_t +lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], + uint8_t tgt_wwpn[], uint32_t *lun_status, + uint32_t *lun_pri) +{ + uint64_t found_lun; + + if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) + return NOT_OAS_ENABLED_LUN; + if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) + phba->sli4_hba.oas_next_vpt_wwpn, + (struct lpfc_name *) + phba->sli4_hba.oas_next_tgt_wwpn, + &phba->sli4_hba.oas_next_lun, + (struct lpfc_name *)vpt_wwpn, + (struct lpfc_name *)tgt_wwpn, + &found_lun, lun_status, lun_pri)) + return found_lun; + else + return NOT_OAS_ENABLED_LUN; +} + +/** + * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations + * @phba: lpfc_hba pointer. + * @vpt_wwpn: vport wwpn by reference. + * @tgt_wwpn: target wwpn by reference. + * @lun: the fc lun for setting oas state. + * @oas_state: the oas state to be set to the oas_lun. + * @pri: priority + * + * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) + * a lun for OAS operations. + * + * Return: + * SUCCESS: 0 + * -ENOMEM: failed to enable an lun for OAS operations + * -EPERM: OAS is not enabled + */ +static ssize_t +lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], + uint8_t tgt_wwpn[], uint64_t lun, + uint32_t oas_state, uint8_t pri) +{ + + int rc; + + rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, + oas_state, pri); + return rc; +} + +/** + * lpfc_oas_lun_show - Return oas enabled luns from a chosen target + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * + * This routine returns a lun enabled for OAS each time the function + * is called. + * + * Returns: + * SUCCESS: size of formatted string. + * -EFAULT: target or vport wwpn was not set properly. + * -EPERM: oas is not enabled. + **/ +static ssize_t +lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + uint64_t oas_lun; + int len = 0; + + if (!phba->cfg_fof) + return -EPERM; + + if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) + if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) + return -EFAULT; + + if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) + if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) + return -EFAULT; + + oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, + phba->cfg_oas_tgt_wwpn, + &phba->cfg_oas_lun_status, + &phba->cfg_oas_priority); + if (oas_lun != NOT_OAS_ENABLED_LUN) + phba->cfg_oas_flags |= OAS_LUN_VALID; + + len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); + + return len; +} + +/** + * lpfc_oas_lun_store - Sets the OAS state for lun + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: buffer for passing information. + * @count: size of the formatting string + * + * This function sets the OAS state for lun. Before this function is called, + * the vport wwpn, target wwpn, and oas state need to be set. + * + * Returns: + * SUCCESS: size of formatted string. + * -EFAULT: target or vport wwpn was not set properly. + * -EPERM: oas is not enabled. + * size of formatted string. + **/ +static ssize_t +lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + uint64_t scsi_lun; + uint32_t pri; + ssize_t rc; + + if (!phba->cfg_fof) + return -EPERM; + + if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) + return -EFAULT; + + if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) + return -EFAULT; + + if (!isdigit(buf[0])) + return -EINVAL; + + if (sscanf(buf, "0x%llx", &scsi_lun) != 1) + return -EINVAL; + + pri = phba->cfg_oas_priority; + if (pri == 0) + pri = phba->cfg_XLanePriority; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " + "priority 0x%x with oas state %d\n", + wwn_to_u64(phba->cfg_oas_vpt_wwpn), + wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, + pri, phba->cfg_oas_lun_state); + + rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, + phba->cfg_oas_tgt_wwpn, scsi_lun, + phba->cfg_oas_lun_state, pri); + if (rc) + return rc; + + return count; +} +static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, + lpfc_oas_lun_show, lpfc_oas_lun_store); + +int lpfc_enable_nvmet_cnt; +unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; +module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); +MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); + +static int lpfc_poll = 0; +module_param(lpfc_poll, int, S_IRUGO); +MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" + " 0 - none," + " 1 - poll with interrupts enabled" + " 3 - poll and disable FCP ring interrupts"); + +static DEVICE_ATTR_RW(lpfc_poll); + +int lpfc_no_hba_reset_cnt; +unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; +module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); +MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); + +LPFC_ATTR(sli_mode, 3, 3, 3, + "SLI mode selector: 3 - select SLI-3"); + +LPFC_ATTR_R(enable_npiv, 1, 0, 1, + "Enable NPIV functionality"); + +LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, + "FCF Fast failover=1 Priority failover=2"); + +/* + * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of + * aborted IO. + * The range is [0,1]. Default value is 0 + * 0, IO completes after ABTS issued (default). + * 1, IO completes after receipt of ABTS response or timeout. + */ +LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); + +/* +# lpfc_enable_rrq: Track XRI/OXID reuse after IO failures +# 0x0 = disabled, XRI/OXID use not tracked. +# 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. +# 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. +*/ +LPFC_ATTR_R(enable_rrq, 2, 0, 2, + "Enable RRQ functionality"); + +/* +# lpfc_suppress_link_up: Bring link up at initialization +# 0x0 = bring link up (issue MBX_INIT_LINK) +# 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) +# 0x2 = never bring up link +# Default value is 0. +*/ +LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, + LPFC_DELAY_INIT_LINK_INDEFINITELY, + "Suppress Link Up at initialization"); + +static ssize_t +lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + return scnprintf(buf, PAGE_SIZE, "%d\n", + phba->sli4_hba.pc_sli4_params.pls); +} +static DEVICE_ATTR(pls, 0444, + lpfc_pls_show, NULL); + +static ssize_t +lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; + + return scnprintf(buf, PAGE_SIZE, "%d\n", + (phba->hba_flag & HBA_PERSISTENT_TOPO) ? 1 : 0); +} +static DEVICE_ATTR(pt, 0444, + lpfc_pt_show, NULL); + +/* +# lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS +# 1 - (1024) +# 2 - (2048) +# 3 - (3072) +# 4 - (4096) +# 5 - (5120) +*/ +static ssize_t +lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; + + return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); +} + +static DEVICE_ATTR(iocb_hw, S_IRUGO, + lpfc_iocb_hw_show, NULL); +static ssize_t +lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; + struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); + + return scnprintf(buf, PAGE_SIZE, "%d\n", + pring ? pring->txq_max : 0); +} + +static DEVICE_ATTR(txq_hw, S_IRUGO, + lpfc_txq_hw_show, NULL); +static ssize_t +lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; + struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); + + return scnprintf(buf, PAGE_SIZE, "%d\n", + pring ? pring->txcmplq_max : 0); +} + +static DEVICE_ATTR(txcmplq_hw, S_IRUGO, + lpfc_txcmplq_hw_show, NULL); + +/* +# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear +# until the timer expires. Value range is [0,255]. Default value is 30. +*/ +static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; +static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; +module_param(lpfc_nodev_tmo, int, 0); +MODULE_PARM_DESC(lpfc_nodev_tmo, + "Seconds driver will hold I/O waiting " + "for a device to come back"); + +/** + * lpfc_nodev_tmo_show - Return the hba dev loss timeout value + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains the dev loss timeout in decimal. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + + return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); +} + +/** + * lpfc_nodev_tmo_init - Set the hba nodev timeout value + * @vport: lpfc vport structure pointer. + * @val: contains the nodev timeout value. + * + * Description: + * If the devloss tmo is already set then nodev tmo is set to devloss tmo, + * a kernel error message is printed and zero is returned. + * Else if val is in range then nodev tmo and devloss tmo are set to val. + * Otherwise nodev tmo is set to the default value. + * + * Returns: + * zero if already set or if val is in range + * -EINVAL val out of range + **/ +static int +lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) +{ + if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { + vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; + if (val != LPFC_DEF_DEVLOSS_TMO) + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0407 Ignoring lpfc_nodev_tmo module " + "parameter because lpfc_devloss_tmo " + "is set.\n"); + return 0; + } + + if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { + vport->cfg_nodev_tmo = val; + vport->cfg_devloss_tmo = val; + return 0; + } + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0400 lpfc_nodev_tmo attribute cannot be set to" + " %d, allowed range is [%d, %d]\n", + val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); + vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; + return -EINVAL; +} + +/** + * lpfc_update_rport_devloss_tmo - Update dev loss tmo value + * @vport: lpfc vport structure pointer. + * + * Description: + * Update all the ndlp's dev loss tmo with the vport devloss tmo value. + **/ +static void +lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) +{ + struct Scsi_Host *shost; + struct lpfc_nodelist *ndlp; +#if (IS_ENABLED(CONFIG_NVME_FC)) + struct lpfc_nvme_rport *rport; + struct nvme_fc_remote_port *remoteport = NULL; +#endif + + shost = lpfc_shost_from_vport(vport); + spin_lock_irq(shost->host_lock); + list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { + if (ndlp->rport) + ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; +#if (IS_ENABLED(CONFIG_NVME_FC)) + spin_lock(&ndlp->lock); + rport = lpfc_ndlp_get_nrport(ndlp); + if (rport) + remoteport = rport->remoteport; + spin_unlock(&ndlp->lock); + if (rport && remoteport) + nvme_fc_set_remoteport_devloss(remoteport, + vport->cfg_devloss_tmo); +#endif + } + spin_unlock_irq(shost->host_lock); +} + +/** + * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values + * @vport: lpfc vport structure pointer. + * @val: contains the tmo value. + * + * Description: + * If the devloss tmo is already set or the vport dev loss tmo has changed + * then a kernel error message is printed and zero is returned. + * Else if val is in range then nodev tmo and devloss tmo are set to val. + * Otherwise nodev tmo is set to the default value. + * + * Returns: + * zero if already set or if val is in range + * -EINVAL val out of range + **/ +static int +lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) +{ + if (vport->dev_loss_tmo_changed || + (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0401 Ignoring change to lpfc_nodev_tmo " + "because lpfc_devloss_tmo is set.\n"); + return 0; + } + if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { + vport->cfg_nodev_tmo = val; + vport->cfg_devloss_tmo = val; + /* + * For compat: set the fc_host dev loss so new rports + * will get the value. + */ + fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; + lpfc_update_rport_devloss_tmo(vport); + return 0; + } + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0403 lpfc_nodev_tmo attribute cannot be set to " + "%d, allowed range is [%d, %d]\n", + val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); + return -EINVAL; +} + +lpfc_vport_param_store(nodev_tmo) + +static DEVICE_ATTR_RW(lpfc_nodev_tmo); + +/* +# lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that +# disappear until the timer expires. Value range is [0,255]. Default +# value is 30. +*/ +module_param(lpfc_devloss_tmo, int, S_IRUGO); +MODULE_PARM_DESC(lpfc_devloss_tmo, + "Seconds driver will hold I/O waiting " + "for a device to come back"); +lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, + LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) +lpfc_vport_param_show(devloss_tmo) + +/** + * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit + * @vport: lpfc vport structure pointer. + * @val: contains the tmo value. + * + * Description: + * If val is in a valid range then set the vport nodev tmo, + * devloss tmo, also set the vport dev loss tmo changed flag. + * Else a kernel error message is printed. + * + * Returns: + * zero if val is in range + * -EINVAL val out of range + **/ +static int +lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) +{ + if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { + vport->cfg_nodev_tmo = val; + vport->cfg_devloss_tmo = val; + vport->dev_loss_tmo_changed = 1; + fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; + lpfc_update_rport_devloss_tmo(vport); + return 0; + } + + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0404 lpfc_devloss_tmo attribute cannot be set to " + "%d, allowed range is [%d, %d]\n", + val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); + return -EINVAL; +} + +lpfc_vport_param_store(devloss_tmo) +static DEVICE_ATTR_RW(lpfc_devloss_tmo); + +/* + * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it + * lpfc_suppress_rsp = 0 Disable + * lpfc_suppress_rsp = 1 Enable (default) + * + */ +LPFC_ATTR_R(suppress_rsp, 1, 0, 1, + "Enable suppress rsp feature is firmware supports it"); + +/* + * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds + * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs + * lpfc_nvmet_mrq = 1 use a single RQ pair + * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ + * + */ +LPFC_ATTR_R(nvmet_mrq, + LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, + "Specify number of RQ pairs for processing NVMET cmds"); + +/* + * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post + * to each NVMET RQ. Range 64 to 2048, default is 512. + */ +LPFC_ATTR_R(nvmet_mrq_post, + LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, + LPFC_NVMET_RQE_DEF_COUNT, + "Specify number of RQ buffers to initially post"); + +/* + * lpfc_enable_fc4_type: Defines what FC4 types are supported. + * Supported Values: 1 - register just FCP + * 3 - register both FCP and NVME + * Supported values are [1,3]. Default value is 3 + */ +LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE, + LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE, + "Enable FC4 Protocol support - FCP / NVME"); + +/* +# lpfc_log_verbose: Only turn this flag on if you are willing to risk being +# deluged with LOTS of information. +# You can set a bit mask to record specific types of verbose messages: +# See lpfc_logmsh.h for definitions. +*/ +LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, + "Verbose logging bit-mask"); + +/* +# lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters +# objects that have been registered with the nameserver after login. +*/ +LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, + "Deregister nameserver objects before LOGO"); + +/* +# lun_queue_depth: This parameter is used to limit the number of outstanding +# commands per FCP LUN. +*/ +LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, + "Max number of FCP commands we can queue to a specific LUN"); + +/* +# tgt_queue_depth: This parameter is used to limit the number of outstanding +# commands per target port. Value range is [10,65535]. Default value is 65535. +*/ +static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; +module_param(lpfc_tgt_queue_depth, uint, 0444); +MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); +lpfc_vport_param_show(tgt_queue_depth); +lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, + LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); + +/** + * lpfc_tgt_queue_depth_set: Sets an attribute value. + * @vport: lpfc vport structure pointer. + * @val: integer attribute value. + * + * Description: Sets the parameter to the new value. + * + * Returns: + * zero on success + * -EINVAL if val is invalid + */ +static int +lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) +{ + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + struct lpfc_nodelist *ndlp; + + if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) + return -EINVAL; + + if (val == vport->cfg_tgt_queue_depth) + return 0; + + spin_lock_irq(shost->host_lock); + vport->cfg_tgt_queue_depth = val; + + /* Next loop thru nodelist and change cmd_qdepth */ + list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) + ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; + + spin_unlock_irq(shost->host_lock); + return 0; +} + +lpfc_vport_param_store(tgt_queue_depth); +static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); + +/* +# hba_queue_depth: This parameter is used to limit the number of outstanding +# commands per lpfc HBA. Value range is [32,8192]. If this parameter +# value is greater than the maximum number of exchanges supported by the HBA, +# then maximum number of exchanges supported by the HBA is used to determine +# the hba_queue_depth. +*/ +LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, + "Max number of FCP commands we can queue to a lpfc HBA"); + +/* +# peer_port_login: This parameter allows/prevents logins +# between peer ports hosted on the same physical port. +# When this parameter is set 0 peer ports of same physical port +# are not allowed to login to each other. +# When this parameter is set 1 peer ports of same physical port +# are allowed to login to each other. +# Default value of this parameter is 0. +*/ +LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, + "Allow peer ports on the same physical port to login to each " + "other."); + +/* +# restrict_login: This parameter allows/prevents logins +# between Virtual Ports and remote initiators. +# When this parameter is not set (0) Virtual Ports will accept PLOGIs from +# other initiators and will attempt to PLOGI all remote ports. +# When this parameter is set (1) Virtual Ports will reject PLOGIs from +# remote ports and will not attempt to PLOGI to other initiators. +# This parameter does not restrict to the physical port. +# This parameter does not restrict logins to Fabric resident remote ports. +# Default value of this parameter is 1. +*/ +static int lpfc_restrict_login = 1; +module_param(lpfc_restrict_login, int, S_IRUGO); +MODULE_PARM_DESC(lpfc_restrict_login, + "Restrict virtual ports login to remote initiators."); +lpfc_vport_param_show(restrict_login); + +/** + * lpfc_restrict_login_init - Set the vport restrict login flag + * @vport: lpfc vport structure pointer. + * @val: contains the restrict login value. + * + * Description: + * If val is not in a valid range then log a kernel error message and set + * the vport restrict login to one. + * If the port type is physical clear the restrict login flag and return. + * Else set the restrict login flag to val. + * + * Returns: + * zero if val is in range + * -EINVAL val out of range + **/ +static int +lpfc_restrict_login_init(struct lpfc_vport *vport, int val) +{ + if (val < 0 || val > 1) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0422 lpfc_restrict_login attribute cannot " + "be set to %d, allowed range is [0, 1]\n", + val); + vport->cfg_restrict_login = 1; + return -EINVAL; + } + if (vport->port_type == LPFC_PHYSICAL_PORT) { + vport->cfg_restrict_login = 0; + return 0; + } + vport->cfg_restrict_login = val; + return 0; +} + +/** + * lpfc_restrict_login_set - Set the vport restrict login flag + * @vport: lpfc vport structure pointer. + * @val: contains the restrict login value. + * + * Description: + * If val is not in a valid range then log a kernel error message and set + * the vport restrict login to one. + * If the port type is physical and the val is not zero log a kernel + * error message, clear the restrict login flag and return zero. + * Else set the restrict login flag to val. + * + * Returns: + * zero if val is in range + * -EINVAL val out of range + **/ +static int +lpfc_restrict_login_set(struct lpfc_vport *vport, int val) +{ + if (val < 0 || val > 1) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0425 lpfc_restrict_login attribute cannot " + "be set to %d, allowed range is [0, 1]\n", + val); + vport->cfg_restrict_login = 1; + return -EINVAL; + } + if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "0468 lpfc_restrict_login must be 0 for " + "Physical ports.\n"); + vport->cfg_restrict_login = 0; + return 0; + } + vport->cfg_restrict_login = val; + return 0; +} +lpfc_vport_param_store(restrict_login); +static DEVICE_ATTR_RW(lpfc_restrict_login); + +/* +# Some disk devices have a "select ID" or "select Target" capability. +# From a protocol standpoint "select ID" usually means select the +# Fibre channel "ALPA". In the FC-AL Profile there is an "informative +# annex" which contains a table that maps a "select ID" (a number +# between 0 and 7F) to an ALPA. By default, for compatibility with +# older drivers, the lpfc driver scans this table from low ALPA to high +# ALPA. +# +# Turning on the scan-down variable (on = 1, off = 0) will +# cause the lpfc driver to use an inverted table, effectively +# scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. +# +# (Note: This "select ID" functionality is a LOOP ONLY characteristic +# and will not work across a fabric. Also this parameter will take +# effect only in the case when ALPA map is not available.) +*/ +LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, + "Start scanning for devices from highest ALPA to lowest"); + +/* +# lpfc_topology: link topology for init link +# 0x0 = attempt loop mode then point-to-point +# 0x01 = internal loopback mode +# 0x02 = attempt point-to-point mode only +# 0x04 = attempt loop mode only +# 0x06 = attempt point-to-point mode then loop +# Set point-to-point mode if you want to run as an N_Port. +# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. +# Default value is 0. +*/ +LPFC_ATTR(topology, 0, 0, 6, + "Select Fibre Channel topology"); + +/** + * lpfc_topology_store - Set the adapters topology field + * @dev: class device that is converted into a scsi_host. + * @attr:device attribute, not used. + * @buf: buffer for passing information. + * @count: size of the data buffer. + * + * Description: + * If val is in a valid range then set the adapter's topology field and + * issue a lip; if the lip fails reset the topology to the old value. + * + * If the value is not in range log a kernel error message and return an error. + * + * Returns: + * zero if val is in range and lip okay + * non-zero return value from lpfc_issue_lip() + * -EINVAL val out of range + **/ +static ssize_t +lpfc_topology_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int val = 0; + int nolip = 0; + const char *val_buf = buf; + int err; + uint32_t prev_val; + u8 sli_family, if_type; + + if (!strncmp(buf, "nolip ", strlen("nolip "))) { + nolip = 1; + val_buf = &buf[strlen("nolip ")]; + } + + if (!isdigit(val_buf[0])) + return -EINVAL; + if (sscanf(val_buf, "%i", &val) != 1) + return -EINVAL; + + if (val >= 0 && val <= 6) { + prev_val = phba->cfg_topology; + if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && + val == 4) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "3113 Loop mode not supported at speed %d\n", + val); + return -EINVAL; + } + /* + * The 'topology' is not a configurable parameter if : + * - persistent topology enabled + * - ASIC_GEN_NUM >= 0xC, with no private loop support + */ + sli_family = bf_get(lpfc_sli_intf_sli_family, + &phba->sli4_hba.sli_intf); + if_type = bf_get(lpfc_sli_intf_if_type, + &phba->sli4_hba.sli_intf); + if ((phba->hba_flag & HBA_PERSISTENT_TOPO || + (!phba->sli4_hba.pc_sli4_params.pls && + (sli_family == LPFC_SLI_INTF_FAMILY_G6 || + if_type == LPFC_SLI_INTF_IF_TYPE_6))) && + val == 4) { + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "3114 Loop mode not supported\n"); + return -EINVAL; + } + phba->cfg_topology = val; + if (nolip) + return strlen(buf); + + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "3054 lpfc_topology changed from %d to %d\n", + prev_val, val); + if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) + phba->fc_topology_changed = 1; + err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); + if (err) { + phba->cfg_topology = prev_val; + return -EINVAL; + } else + return strlen(buf); + } + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "%d:0467 lpfc_topology attribute cannot be set to %d, " + "allowed range is [0, 6]\n", + phba->brd_no, val); + return -EINVAL; +} + +lpfc_param_show(topology) +static DEVICE_ATTR_RW(lpfc_topology); + +/** + * lpfc_static_vport_show: Read callback function for + * lpfc_static_vport sysfs file. + * @dev: Pointer to class device object. + * @attr: device attribute structure. + * @buf: Data buffer. + * + * This function is the read call back function for + * lpfc_static_vport sysfs file. The lpfc_static_vport + * sysfs file report the mageability of the vport. + **/ +static ssize_t +lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + if (vport->vport_flag & STATIC_VPORT) + sprintf(buf, "1\n"); + else + sprintf(buf, "0\n"); + + return strlen(buf); +} + +/* + * Sysfs attribute to control the statistical data collection. + */ +static DEVICE_ATTR_RO(lpfc_static_vport); + +/* +# lpfc_link_speed: Link speed selection for initializing the Fibre Channel +# connection. +# Value range is [0,16]. Default value is 0. +*/ +/** + * lpfc_link_speed_store - Set the adapters link speed + * @dev: Pointer to class device. + * @attr: Unused. + * @buf: Data buffer. + * @count: Size of the data buffer. + * + * Description: + * If val is in a valid range then set the adapter's link speed field and + * issue a lip; if the lip fails reset the link speed to the old value. + * + * Notes: + * If the value is not in range log a kernel error message and return an error. + * + * Returns: + * zero if val is in range and lip okay. + * non-zero return value from lpfc_issue_lip() + * -EINVAL val out of range + **/ +static ssize_t +lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int val = LPFC_USER_LINK_SPEED_AUTO; + int nolip = 0; + const char *val_buf = buf; + int err; + uint32_t prev_val, if_type; + + if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); + if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && + phba->hba_flag & HBA_FORCED_LINK_SPEED) + return -EPERM; + + if (!strncmp(buf, "nolip ", strlen("nolip "))) { + nolip = 1; + val_buf = &buf[strlen("nolip ")]; + } + + if (!isdigit(val_buf[0])) + return -EINVAL; + if (sscanf(val_buf, "%i", &val) != 1) + return -EINVAL; + + lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, + "3055 lpfc_link_speed changed from %d to %d %s\n", + phba->cfg_link_speed, val, nolip ? "(nolip)" : "(lip)"); + + if (((val == LPFC_USER_LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || + ((val == LPFC_USER_LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || + ((val == LPFC_USER_LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || + ((val == LPFC_USER_LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || + ((val == LPFC_USER_LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb)) || + ((val == LPFC_USER_LINK_SPEED_16G) && !(phba->lmt & LMT_16Gb)) || + ((val == LPFC_USER_LINK_SPEED_32G) && !(phba->lmt & LMT_32Gb)) || + ((val == LPFC_USER_LINK_SPEED_64G) && !(phba->lmt & LMT_64Gb))) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "2879 lpfc_link_speed attribute cannot be set " + "to %d. Speed is not supported by this port.\n", + val); + return -EINVAL; + } + if (val >= LPFC_USER_LINK_SPEED_16G && + phba->fc_topology == LPFC_TOPOLOGY_LOOP) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3112 lpfc_link_speed attribute cannot be set " + "to %d. Speed is not supported in loop mode.\n", + val); + return -EINVAL; + } + + switch (val) { + case LPFC_USER_LINK_SPEED_AUTO: + case LPFC_USER_LINK_SPEED_1G: + case LPFC_USER_LINK_SPEED_2G: + case LPFC_USER_LINK_SPEED_4G: + case LPFC_USER_LINK_SPEED_8G: + case LPFC_USER_LINK_SPEED_16G: + case LPFC_USER_LINK_SPEED_32G: + case LPFC_USER_LINK_SPEED_64G: + prev_val = phba->cfg_link_speed; + phba->cfg_link_speed = val; + if (nolip) + return strlen(buf); + + err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); + if (err) { + phba->cfg_link_speed = prev_val; + return -EINVAL; + } + return strlen(buf); + default: + break; + } + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0469 lpfc_link_speed attribute cannot be set to %d, " + "allowed values are [%s]\n", + val, LPFC_LINK_SPEED_STRING); + return -EINVAL; + +} + +static int lpfc_link_speed = 0; +module_param(lpfc_link_speed, int, S_IRUGO); +MODULE_PARM_DESC(lpfc_link_speed, "Select link speed"); +lpfc_param_show(link_speed) + +/** + * lpfc_link_speed_init - Set the adapters link speed + * @phba: lpfc_hba pointer. + * @val: link speed value. + * + * Description: + * If val is in a valid range then set the adapter's link speed field. + * + * Notes: + * If the value is not in range log a kernel error message, clear the link + * speed and return an error. + * + * Returns: + * zero if val saved. + * -EINVAL val out of range + **/ +static int +lpfc_link_speed_init(struct lpfc_hba *phba, int val) +{ + if (val >= LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3111 lpfc_link_speed of %d cannot " + "support loop mode, setting topology to default.\n", + val); + phba->cfg_topology = 0; + } + + switch (val) { + case LPFC_USER_LINK_SPEED_AUTO: + case LPFC_USER_LINK_SPEED_1G: + case LPFC_USER_LINK_SPEED_2G: + case LPFC_USER_LINK_SPEED_4G: + case LPFC_USER_LINK_SPEED_8G: + case LPFC_USER_LINK_SPEED_16G: + case LPFC_USER_LINK_SPEED_32G: + case LPFC_USER_LINK_SPEED_64G: + phba->cfg_link_speed = val; + return 0; + default: + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0405 lpfc_link_speed attribute cannot " + "be set to %d, allowed values are " + "["LPFC_LINK_SPEED_STRING"]\n", val); + phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO; + return -EINVAL; + } +} + +static DEVICE_ATTR_RW(lpfc_link_speed); + +/* +# lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) +# 0 = aer disabled or not supported +# 1 = aer supported and enabled (default) +# Value range is [0,1]. Default value is 1. +*/ +LPFC_ATTR(aer_support, 1, 0, 1, + "Enable PCIe device AER support"); +lpfc_param_show(aer_support) + +/** + * lpfc_aer_support_store - Set the adapter for aer support + * + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing enable or disable aer flag. + * @count: unused variable. + * + * Description: + * If the val is 1 and currently the device's AER capability was not + * enabled, invoke the kernel's enable AER helper routine, trying to + * enable the device's AER capability. If the helper routine enabling + * AER returns success, update the device's cfg_aer_support flag to + * indicate AER is supported by the device; otherwise, if the device + * AER capability is already enabled to support AER, then do nothing. + * + * If the val is 0 and currently the device's AER support was enabled, + * invoke the kernel's disable AER helper routine. After that, update + * the device's cfg_aer_support flag to indicate AER is not supported + * by the device; otherwise, if the device AER capability is already + * disabled from supporting AER, then do nothing. + * + * Returns: + * length of the buf on success if val is in range the intended mode + * is supported. + * -EINVAL if val out of range or intended mode is not supported. + **/ +static ssize_t +lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int val = 0, rc = -EINVAL; + + if (!isdigit(buf[0])) + return -EINVAL; + if (sscanf(buf, "%i", &val) != 1) + return -EINVAL; + + switch (val) { + case 0: + if (phba->hba_flag & HBA_AER_ENABLED) { + rc = pci_disable_pcie_error_reporting(phba->pcidev); + if (!rc) { + spin_lock_irq(&phba->hbalock); + phba->hba_flag &= ~HBA_AER_ENABLED; + spin_unlock_irq(&phba->hbalock); + phba->cfg_aer_support = 0; + rc = strlen(buf); + } else + rc = -EPERM; + } else { + phba->cfg_aer_support = 0; + rc = strlen(buf); + } + break; + case 1: + if (!(phba->hba_flag & HBA_AER_ENABLED)) { + rc = pci_enable_pcie_error_reporting(phba->pcidev); + if (!rc) { + spin_lock_irq(&phba->hbalock); + phba->hba_flag |= HBA_AER_ENABLED; + spin_unlock_irq(&phba->hbalock); + phba->cfg_aer_support = 1; + rc = strlen(buf); + } else + rc = -EPERM; + } else { + phba->cfg_aer_support = 1; + rc = strlen(buf); + } + break; + default: + rc = -EINVAL; + break; + } + return rc; +} + +static DEVICE_ATTR_RW(lpfc_aer_support); + +/** + * lpfc_aer_cleanup_state - Clean up aer state to the aer enabled device + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing flag 1 for aer cleanup state. + * @count: unused variable. + * + * Description: + * If the @buf contains 1 and the device currently has the AER support + * enabled, then invokes the kernel AER helper routine + * pci_aer_clear_nonfatal_status() to clean up the uncorrectable + * error status register. + * + * Notes: + * + * Returns: + * -EINVAL if the buf does not contain the 1 or the device is not currently + * enabled with the AER support. + **/ +static ssize_t +lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int val, rc = -1; + + if (!isdigit(buf[0])) + return -EINVAL; + if (sscanf(buf, "%i", &val) != 1) + return -EINVAL; + if (val != 1) + return -EINVAL; + + if (phba->hba_flag & HBA_AER_ENABLED) + rc = pci_aer_clear_nonfatal_status(phba->pcidev); + + if (rc == 0) + return strlen(buf); + else + return -EPERM; +} + +static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, + lpfc_aer_cleanup_state); + +/** + * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions + * + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing the string the number of vfs to be enabled. + * @count: unused variable. + * + * Description: + * When this api is called either through user sysfs, the driver shall + * try to enable or disable SR-IOV virtual functions according to the + * following: + * + * If zero virtual function has been enabled to the physical function, + * the driver shall invoke the pci enable virtual function api trying + * to enable the virtual functions. If the nr_vfn provided is greater + * than the maximum supported, the maximum virtual function number will + * be used for invoking the api; otherwise, the nr_vfn provided shall + * be used for invoking the api. If the api call returned success, the + * actual number of virtual functions enabled will be set to the driver + * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver + * cfg_sriov_nr_virtfn remains zero. + * + * If none-zero virtual functions have already been enabled to the + * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, + * -EINVAL will be returned and the driver does nothing; + * + * If the nr_vfn provided is zero and none-zero virtual functions have + * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the + * disabling virtual function api shall be invoded to disable all the + * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to + * zero. Otherwise, if zero virtual function has been enabled, do + * nothing. + * + * Returns: + * length of the buf on success if val is in range the intended mode + * is supported. + * -EINVAL if val out of range or intended mode is not supported. + **/ +static ssize_t +lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct pci_dev *pdev = phba->pcidev; + int val = 0, rc = -EINVAL; + + /* Sanity check on user data */ + if (!isdigit(buf[0])) + return -EINVAL; + if (sscanf(buf, "%i", &val) != 1) + return -EINVAL; + if (val < 0) + return -EINVAL; + + /* Request disabling virtual functions */ + if (val == 0) { + if (phba->cfg_sriov_nr_virtfn > 0) { + pci_disable_sriov(pdev); + phba->cfg_sriov_nr_virtfn = 0; + } + return strlen(buf); + } + + /* Request enabling virtual functions */ + if (phba->cfg_sriov_nr_virtfn > 0) { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3018 There are %d virtual functions " + "enabled on physical function.\n", + phba->cfg_sriov_nr_virtfn); + return -EEXIST; + } + + if (val <= LPFC_MAX_VFN_PER_PFN) + phba->cfg_sriov_nr_virtfn = val; + else { + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3019 Enabling %d virtual functions is not " + "allowed.\n", val); + return -EINVAL; + } + + rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); + if (rc) { + phba->cfg_sriov_nr_virtfn = 0; + rc = -EPERM; + } else + rc = strlen(buf); + + return rc; +} + +LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, + "Enable PCIe device SR-IOV virtual fn"); + +lpfc_param_show(sriov_nr_virtfn) +static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); + +/** + * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade + * + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: containing the string the number of vfs to be enabled. + * @count: unused variable. + * + * Description: + * + * Returns: + * length of the buf on success if val is in range the intended mode + * is supported. + * -EINVAL if val out of range or intended mode is not supported. + **/ +static ssize_t +lpfc_request_firmware_upgrade_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int val = 0, rc; + + /* Sanity check on user data */ + if (!isdigit(buf[0])) + return -EINVAL; + if (sscanf(buf, "%i", &val) != 1) + return -EINVAL; + if (val != 1) + return -EINVAL; + + rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); + if (rc) + rc = -EPERM; + else + rc = strlen(buf); + return rc; +} + +static int lpfc_req_fw_upgrade; +module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); +lpfc_param_show(request_firmware_upgrade) + +/** + * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade + * @phba: lpfc_hba pointer. + * @val: 0 or 1. + * + * Description: + * Set the initial Linux generic firmware upgrade enable or disable flag. + * + * Returns: + * zero if val saved. + * -EINVAL val out of range + **/ +static int +lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) +{ + if (val >= 0 && val <= 1) { + phba->cfg_request_firmware_upgrade = val; + return 0; + } + return -EINVAL; +} +static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, + lpfc_request_firmware_upgrade_show, + lpfc_request_firmware_upgrade_store); + +/** + * lpfc_force_rscn_store + * + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: unused string + * @count: unused variable. + * + * Description: + * Force the switch to send a RSCN to all other NPorts in our zone + * If we are direct connect pt2pt, build the RSCN command ourself + * and send to the other NPort. Not supported for private loop. + * + * Returns: + * 0 - on success + * -EIO - if command is not sent + **/ +static ssize_t +lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + int i; + + i = lpfc_issue_els_rscn(vport, 0); + if (i) + return -EIO; + return strlen(buf); +} + +/* + * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts + * connected to the HBA. + * + * Value range is any ascii value + */ +static int lpfc_force_rscn; +module_param(lpfc_force_rscn, int, 0644); +MODULE_PARM_DESC(lpfc_force_rscn, + "Force an RSCN to be sent to all remote NPorts"); +lpfc_param_show(force_rscn) + +/** + * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts + * @phba: lpfc_hba pointer. + * @val: unused value. + * + * Returns: + * zero if val saved. + **/ +static int +lpfc_force_rscn_init(struct lpfc_hba *phba, int val) +{ + return 0; +} +static DEVICE_ATTR_RW(lpfc_force_rscn); + +/** + * lpfc_fcp_imax_store + * + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: string with the number of fast-path FCP interrupts per second. + * @count: unused variable. + * + * Description: + * If val is in a valid range [636,651042], then set the adapter's + * maximum number of fast-path FCP interrupts per second. + * + * Returns: + * length of the buf on success if val is in range the intended mode + * is supported. + * -EINVAL if val out of range or intended mode is not supported. + **/ +static ssize_t +lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct lpfc_eq_intr_info *eqi; + uint32_t usdelay; + int val = 0, i; + + /* fcp_imax is only valid for SLI4 */ + if (phba->sli_rev != LPFC_SLI_REV4) + return -EINVAL; + + /* Sanity check on user data */ + if (!isdigit(buf[0])) + return -EINVAL; + if (sscanf(buf, "%i", &val) != 1) + return -EINVAL; + + /* + * Value range for the HBA is [5000,5000000] + * The value for each EQ depends on how many EQs are configured. + * Allow value == 0 + */ + if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) + return -EINVAL; + + phba->cfg_auto_imax = (val) ? 0 : 1; + if (phba->cfg_fcp_imax && !val) { + queue_delayed_work(phba->wq, &phba->eq_delay_work, + msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); + + for_each_present_cpu(i) { + eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); + eqi->icnt = 0; + } + } + + phba->cfg_fcp_imax = (uint32_t)val; + + if (phba->cfg_fcp_imax) + usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; + else + usdelay = 0; + + for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) + lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, + usdelay); + + return strlen(buf); +} + +/* +# lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second +# for the HBA. +# +# Value range is [5,000 to 5,000,000]. Default value is 50,000. +*/ +static int lpfc_fcp_imax = LPFC_DEF_IMAX; +module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(lpfc_fcp_imax, + "Set the maximum number of FCP interrupts per second per HBA"); +lpfc_param_show(fcp_imax) + +/** + * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable + * @phba: lpfc_hba pointer. + * @val: link speed value. + * + * Description: + * If val is in a valid range [636,651042], then initialize the adapter's + * maximum number of fast-path FCP interrupts per second. + * + * Returns: + * zero if val saved. + * -EINVAL val out of range + **/ +static int +lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) +{ + if (phba->sli_rev != LPFC_SLI_REV4) { + phba->cfg_fcp_imax = 0; + return 0; + } + + if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || + (val == 0)) { + phba->cfg_fcp_imax = val; + return 0; + } + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3016 lpfc_fcp_imax: %d out of range, using default\n", + val); + phba->cfg_fcp_imax = LPFC_DEF_IMAX; + + return 0; +} + +static DEVICE_ATTR_RW(lpfc_fcp_imax); + +/** + * lpfc_cq_max_proc_limit_store + * + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: string with the cq max processing limit of cqes + * @count: unused variable. + * + * Description: + * If val is in a valid range, then set value on each cq + * + * Returns: + * The length of the buf: if successful + * -ERANGE: if val is not in the valid range + * -EINVAL: if bad value format or intended mode is not supported. + **/ +static ssize_t +lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct lpfc_queue *eq, *cq; + unsigned long val; + int i; + + /* cq_max_proc_limit is only valid for SLI4 */ + if (phba->sli_rev != LPFC_SLI_REV4) + return -EINVAL; + + /* Sanity check on user data */ + if (!isdigit(buf[0])) + return -EINVAL; + if (kstrtoul(buf, 0, &val)) + return -EINVAL; + + if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) + return -ERANGE; + + phba->cfg_cq_max_proc_limit = (uint32_t)val; + + /* set the values on the cq's */ + for (i = 0; i < phba->cfg_irq_chann; i++) { + /* Get the EQ corresponding to the IRQ vector */ + eq = phba->sli4_hba.hba_eq_hdl[i].eq; + if (!eq) + continue; + + list_for_each_entry(cq, &eq->child_list, list) + cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, + cq->entry_count); + } + + return strlen(buf); +} + +/* + * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an + * itteration of CQ processing. + */ +static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; +module_param(lpfc_cq_max_proc_limit, int, 0644); +MODULE_PARM_DESC(lpfc_cq_max_proc_limit, + "Set the maximum number CQEs processed in an iteration of " + "CQ processing"); +lpfc_param_show(cq_max_proc_limit) + +/* + * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a + * single handler call which should request a polled completion rather + * than re-enabling interrupts. + */ +LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, + LPFC_CQ_MIN_THRESHOLD_TO_POLL, + LPFC_CQ_MAX_THRESHOLD_TO_POLL, + "CQE Processing Threshold to enable Polling"); + +/** + * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit + * @phba: lpfc_hba pointer. + * @val: entry limit + * + * Description: + * If val is in a valid range, then initialize the adapter's maximum + * value. + * + * Returns: + * Always returns 0 for success, even if value not always set to + * requested value. If value out of range or not supported, will fall + * back to default. + **/ +static int +lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) +{ + phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; + + if (phba->sli_rev != LPFC_SLI_REV4) + return 0; + + if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { + phba->cfg_cq_max_proc_limit = val; + return 0; + } + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0371 lpfc_cq_max_proc_limit: %d out of range, using " + "default\n", + phba->cfg_cq_max_proc_limit); + + return 0; +} + +static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); + +/** + * lpfc_fcp_cpu_map_show - Display current driver CPU affinity + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains text describing the state of the link. + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct lpfc_vector_map_info *cpup; + int len = 0; + + if ((phba->sli_rev != LPFC_SLI_REV4) || + (phba->intr_type != MSIX)) + return len; + + switch (phba->cfg_fcp_cpu_map) { + case 0: + len += scnprintf(buf + len, PAGE_SIZE-len, + "fcp_cpu_map: No mapping (%d)\n", + phba->cfg_fcp_cpu_map); + return len; + case 1: + len += scnprintf(buf + len, PAGE_SIZE-len, + "fcp_cpu_map: HBA centric mapping (%d): " + "%d of %d CPUs online from %d possible CPUs\n", + phba->cfg_fcp_cpu_map, num_online_cpus(), + num_present_cpus(), + phba->sli4_hba.num_possible_cpu); + break; + } + + while (phba->sli4_hba.curr_disp_cpu < + phba->sli4_hba.num_possible_cpu) { + cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; + + if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) + len += scnprintf(buf + len, PAGE_SIZE - len, + "CPU %02d not present\n", + phba->sli4_hba.curr_disp_cpu); + else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { + if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) + len += scnprintf( + buf + len, PAGE_SIZE - len, + "CPU %02d hdwq None " + "physid %d coreid %d ht %d ua %d\n", + phba->sli4_hba.curr_disp_cpu, + cpup->phys_id, cpup->core_id, + (cpup->flag & LPFC_CPU_MAP_HYPER), + (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); + else + len += scnprintf( + buf + len, PAGE_SIZE - len, + "CPU %02d EQ None hdwq %04d " + "physid %d coreid %d ht %d ua %d\n", + phba->sli4_hba.curr_disp_cpu, + cpup->hdwq, cpup->phys_id, + cpup->core_id, + (cpup->flag & LPFC_CPU_MAP_HYPER), + (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); + } else { + if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) + len += scnprintf( + buf + len, PAGE_SIZE - len, + "CPU %02d hdwq None " + "physid %d coreid %d ht %d ua %d IRQ %d\n", + phba->sli4_hba.curr_disp_cpu, + cpup->phys_id, + cpup->core_id, + (cpup->flag & LPFC_CPU_MAP_HYPER), + (cpup->flag & LPFC_CPU_MAP_UNASSIGN), + lpfc_get_irq(cpup->eq)); + else + len += scnprintf( + buf + len, PAGE_SIZE - len, + "CPU %02d EQ %04d hdwq %04d " + "physid %d coreid %d ht %d ua %d IRQ %d\n", + phba->sli4_hba.curr_disp_cpu, + cpup->eq, cpup->hdwq, cpup->phys_id, + cpup->core_id, + (cpup->flag & LPFC_CPU_MAP_HYPER), + (cpup->flag & LPFC_CPU_MAP_UNASSIGN), + lpfc_get_irq(cpup->eq)); + } + + phba->sli4_hba.curr_disp_cpu++; + + /* display max number of CPUs keeping some margin */ + if (phba->sli4_hba.curr_disp_cpu < + phba->sli4_hba.num_possible_cpu && + (len >= (PAGE_SIZE - 64))) { + len += scnprintf(buf + len, + PAGE_SIZE - len, "more...\n"); + break; + } + } + + if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) + phba->sli4_hba.curr_disp_cpu = 0; + + return len; +} + +/** + * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors + * @dev: class device that is converted into a Scsi_host. + * @attr: device attribute, not used. + * @buf: one or more lpfc_polling_flags values. + * @count: not used. + * + * Returns: + * -EINVAL - Not implemented yet. + **/ +static ssize_t +lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return -EINVAL; +} + +/* +# lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors +# for the HBA. +# +# Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). +# 0 - Do not affinitze IRQ vectors +# 1 - Affintize HBA vectors with respect to each HBA +# (start with CPU0 for each HBA) +# This also defines how Hardware Queues are mapped to specific CPUs. +*/ +static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; +module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(lpfc_fcp_cpu_map, + "Defines how to map CPUs to IRQ vectors per HBA"); + +/** + * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable + * @phba: lpfc_hba pointer. + * @val: link speed value. + * + * Description: + * If val is in a valid range [0-2], then affinitze the adapter's + * MSIX vectors. + * + * Returns: + * zero if val saved. + * -EINVAL val out of range + **/ +static int +lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) +{ + if (phba->sli_rev != LPFC_SLI_REV4) { + phba->cfg_fcp_cpu_map = 0; + return 0; + } + + if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { + phba->cfg_fcp_cpu_map = val; + return 0; + } + + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "3326 lpfc_fcp_cpu_map: %d out of range, using " + "default\n", val); + phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; + + return 0; +} + +static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); + +/* +# lpfc_fcp_class: Determines FC class to use for the FCP protocol. +# Value range is [2,3]. Default value is 3. +*/ +LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, + "Select Fibre Channel class of service for FCP sequences"); + +/* +# lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range +# is [0,1]. Default value is 1. +*/ +LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, + "Use ADISC on rediscovery to authenticate FCP devices"); + +/* +# lpfc_first_burst_size: First burst size to use on the NPorts +# that support first burst. +# Value range is [0,65536]. Default value is 0. +*/ +LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, + "First burst size for Targets that support first burst"); + +/* +* lpfc_nvmet_fb_size: NVME Target mode supported first burst size. +* When the driver is configured as an NVME target, this value is +* communicated to the NVME initiator in the PRLI response. It is +* used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support +* parameters are set and the target is sending the PRLI RSP. +* Parameter supported on physical port only - no NPIV support. +* Value range is [0,65536]. Default value is 0. +*/ +LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, + "NVME Target mode first burst size in 512B increments."); + +/* + * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. + * For the Initiator (I), enabling this parameter means that an NVMET + * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be + * processed by the initiator for subsequent NVME FCP IO. + * Currently, this feature is not supported on the NVME target + * Value range is [0,1]. Default value is 0 (disabled). + */ +LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, + "Enable First Burst feature for NVME Initiator."); + +/* +# lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue +# depth. Default value is 0. When the value of this parameter is zero the +# SCSI command completion time is not used for controlling I/O queue depth. When +# the parameter is set to a non-zero value, the I/O queue depth is controlled +# to limit the I/O completion time to the parameter value. +# The value is set in milliseconds. +*/ +LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, + "Use command completion time to control queue depth"); + +lpfc_vport_param_show(max_scsicmpl_time); +static int +lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) +{ + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + struct lpfc_nodelist *ndlp, *next_ndlp; + + if (val == vport->cfg_max_scsicmpl_time) + return 0; + if ((val < 0) || (val > 60000)) + return -EINVAL; + vport->cfg_max_scsicmpl_time = val; + + spin_lock_irq(shost->host_lock); + list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { + if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) + continue; + ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; + } + spin_unlock_irq(shost->host_lock); + return 0; +} +lpfc_vport_param_store(max_scsicmpl_time); +static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); + +/* +# lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value +# range is [0,1]. Default value is 0. +*/ +LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); + +/* +# lpfc_xri_rebalancing: enable or disable XRI rebalancing feature +# range is [0,1]. Default value is 1. +*/ +LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); + +/* + * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds + * range is [0,1]. Default value is 0. + * For [0], FCP commands are issued to Work Queues based on upper layer + * hardware queue index. + * For [1], FCP commands are issued to a Work Queue associated with the + * current CPU. + * + * LPFC_FCP_SCHED_BY_HDWQ == 0 + * LPFC_FCP_SCHED_BY_CPU == 1 + * + * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu + * affinity for FCP/NVME I/Os through Work Queues associated with the current + * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os + * through WQs will be used. + */ +LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, + LPFC_FCP_SCHED_BY_HDWQ, + LPFC_FCP_SCHED_BY_CPU, + "Determine scheduling algorithm for " + "issuing commands [0] - Hardware Queue, [1] - Current CPU"); + +/* + * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN + * range is [0,1]. Default value is 0. + * For [0], GID_FT is used for NameServer queries after RSCN (default) + * For [1], GID_PT is used for NameServer queries after RSCN + * + */ +LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, + LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, + "Determine algorithm NameServer queries after RSCN " + "[0] - GID_FT, [1] - GID_PT"); + +/* +# lpfc_fcp2_no_tgt_reset: Determine bus reset behavior +# range is [0,1]. Default value is 0. +# For [0], bus reset issues target reset to ALL devices +# For [1], bus reset issues target reset to non-FCP2 devices +*/ +LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " + "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); + + +/* +# lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing +# cr_delay (msec) or cr_count outstanding commands. cr_delay can take +# value [0,63]. cr_count can take value [1,255]. Default value of cr_delay +# is 0. Default value of cr_count is 1. The cr_count feature is disabled if +# cr_delay is set to 0. +*/ +LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " + "interrupt response is generated"); + +LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " + "interrupt response is generated"); + +/* +# lpfc_multi_ring_support: Determines how many rings to spread available +# cmd/rsp IOCB entries across. +# Value range is [1,2]. Default value is 1. +*/ +LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " + "SLI rings to spread IOCB entries across"); + +/* +# lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this +# identifies what rctl value to configure the additional ring for. +# Value range is [1,0xff]. Default value is 4 (Unsolicated Data). +*/ +LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, + 255, "Identifies RCTL for additional ring configuration"); + +/* +# lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this +# identifies what type value to configure the additional ring for. +# Value range is [1,0xff]. Default value is 5 (LLC/SNAP). +*/ +LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, + 255, "Identifies TYPE for additional ring configuration"); + +/* +# lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN +# 0 = SmartSAN functionality disabled (default) +# 1 = SmartSAN functionality enabled +# This parameter will override the value of lpfc_fdmi_on module parameter. +# Value range is [0,1]. Default value is 0. +*/ +LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); + +/* +# lpfc_fdmi_on: Controls FDMI support. +# 0 No FDMI support +# 1 Traditional FDMI support (default) +# Traditional FDMI support means the driver will assume FDMI-2 support; +# however, if that fails, it will fallback to FDMI-1. +# If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. +# If lpfc_enable_SmartSAN is set 0, the driver uses the current value of +# lpfc_fdmi_on. +# Value range [0,1]. Default value is 1. +*/ +LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); + +/* +# Specifies the maximum number of ELS cmds we can have outstanding (for +# discovery). Value range is [1,64]. Default value = 32. +*/ +LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " + "during discovery"); + +/* +# lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that +# will be scanned by the SCSI midlayer when sequential scanning is +# used; and is also the highest LUN ID allowed when the SCSI midlayer +# parses REPORT_LUN responses. The lpfc driver has no LUN count or +# LUN ID limit, but the SCSI midlayer requires this field for the uses +# above. The lpfc driver limits the default value to 255 for two reasons. +# As it bounds the sequential scan loop, scanning for thousands of luns +# on a target can take minutes of wall clock time. Additionally, +# there are FC targets, such as JBODs, that only recognize 8-bits of +# LUN ID. When they receive a value greater than 8 bits, they chop off +# the high order bits. In other words, they see LUN IDs 0, 256, 512, +# and so on all as LUN ID 0. This causes the linux kernel, which sees +# valid responses at each of the LUN IDs, to believe there are multiple +# devices present, when in fact, there is only 1. +# A customer that is aware of their target behaviors, and the results as +# indicated above, is welcome to increase the lpfc_max_luns value. +# As mentioned, this value is not used by the lpfc driver, only the +# SCSI midlayer. +# Value range is [0,65535]. Default value is 255. +# NOTE: The SCSI layer might probe all allowed LUN on some old targets. +*/ +LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); + +/* +# lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. +# Value range is [1,255], default value is 10. +*/ +LPFC_ATTR_RW(poll_tmo, 10, 1, 255, + "Milliseconds driver will wait between polling FCP ring"); + +/* +# lpfc_task_mgmt_tmo: Maximum time to wait for task management commands +# to complete in seconds. Value range is [5,180], default value is 60. +*/ +LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, + "Maximum time to wait for task management commands to complete"); +/* +# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that +# support this feature +# 0 = MSI disabled +# 1 = MSI enabled +# 2 = MSI-X enabled (default) +# Value range is [0,2]. Default value is 2. +*/ +LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " + "MSI-X (2), if possible"); + +/* + * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs + * + * 0 = NVME OAS disabled + * 1 = NVME OAS enabled + * + * Value range is [0,1]. Default value is 0. + */ +LPFC_ATTR_RW(nvme_oas, 0, 0, 1, + "Use OAS bit on NVME IOs"); + +/* + * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs + * + * 0 = Put NVME Command in SGL + * 1 = Embed NVME Command in WQE (unless G7) + * 2 = Embed NVME Command in WQE (force) + * + * Value range is [0,2]. Default value is 1. + */ +LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, + "Embed NVME Command in WQE"); + +/* + * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues + * the driver will advertise it supports to the SCSI layer. + * + * 0 = Set nr_hw_queues by the number of CPUs or HW queues. + * 1,256 = Manually specify nr_hw_queue value to be advertised, + * + * Value range is [0,256]. Default value is 8. + */ +LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, + LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, + "Set the number of SCSI Queues advertised"); + +/* + * lpfc_hdw_queue: Set the number of Hardware Queues the driver + * will advertise it supports to the NVME and SCSI layers. This also + * will map to the number of CQ/WQ pairs the driver will create. + * + * The NVME Layer will try to create this many, plus 1 administrative + * hardware queue. The administrative queue will always map to WQ 0 + * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. + * + * 0 = Configure the number of hdw queues to the number of active CPUs. + * 1,256 = Manually specify how many hdw queues to use. + * + * Value range is [0,256]. Default value is 0. + */ +LPFC_ATTR_R(hdw_queue, + LPFC_HBA_HDWQ_DEF, + LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, + "Set the number of I/O Hardware Queues"); + +#if IS_ENABLED(CONFIG_X86) +/** + * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on + * irq_chann_mode + * @phba: Pointer to HBA context object. + **/ +static void +lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) +{ + unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; + const struct cpumask *sibling_mask; + struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; + + cpumask_clear(aff_mask); + + if (phba->irq_chann_mode == NUMA_MODE) { + /* Check if we're a NUMA architecture */ + numa_node = dev_to_node(&phba->pcidev->dev); + if (numa_node == NUMA_NO_NODE) { + phba->irq_chann_mode = NORMAL_MODE; + return; + } + } + + for_each_possible_cpu(cpu) { + switch (phba->irq_chann_mode) { + case NUMA_MODE: + if (cpu_to_node(cpu) == numa_node) + cpumask_set_cpu(cpu, aff_mask); + break; + case NHT_MODE: + sibling_mask = topology_sibling_cpumask(cpu); + first_cpu = cpumask_first(sibling_mask); + if (first_cpu < nr_cpu_ids) + cpumask_set_cpu(first_cpu, aff_mask); + break; + default: + break; + } + } +} +#endif + +static void +lpfc_assign_default_irq_chann(struct lpfc_hba *phba) +{ +#if IS_ENABLED(CONFIG_X86) + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + /* If AMD architecture, then default is NUMA_MODE */ + phba->irq_chann_mode = NUMA_MODE; + break; + case X86_VENDOR_INTEL: + /* If Intel architecture, then default is no hyperthread mode */ + phba->irq_chann_mode = NHT_MODE; + break; + default: + phba->irq_chann_mode = NORMAL_MODE; + break; + } + lpfc_cpumask_irq_mode_init(phba); +#else + phba->irq_chann_mode = NORMAL_MODE; +#endif +} + +/* + * lpfc_irq_chann: Set the number of IRQ vectors that are available + * for Hardware Queues to utilize. This also will map to the number + * of EQ / MSI-X vectors the driver will create. This should never be + * more than the number of Hardware Queues + * + * 0 = Configure number of IRQ Channels to: + * if AMD architecture, number of CPUs on HBA's NUMA node + * if Intel architecture, number of physical CPUs. + * otherwise, number of active CPUs. + * [1,256] = Manually specify how many IRQ Channels to use. + * + * Value range is [0,256]. Default value is [0]. + */ +static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; +module_param(lpfc_irq_chann, uint, 0444); +MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); + +/* lpfc_irq_chann_init - Set the hba irq_chann initial value + * @phba: lpfc_hba pointer. + * @val: contains the initial value + * + * Description: + * Validates the initial value is within range and assigns it to the + * adapter. If not in range, an error message is posted and the + * default value is assigned. + * + * Returns: + * zero if value is in range and is set + * -EINVAL if value was out of range + **/ +static int +lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) +{ + const struct cpumask *aff_mask; + + if (phba->cfg_use_msi != 2) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "8532 use_msi = %u ignoring cfg_irq_numa\n", + phba->cfg_use_msi); + phba->irq_chann_mode = NORMAL_MODE; + phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; + return 0; + } + + /* Check if default setting was passed */ + if (val == LPFC_IRQ_CHANN_DEF && + phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && + phba->sli_rev == LPFC_SLI_REV4) + lpfc_assign_default_irq_chann(phba); + + if (phba->irq_chann_mode != NORMAL_MODE) { + aff_mask = &phba->sli4_hba.irq_aff_mask; + + if (cpumask_empty(aff_mask)) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "8533 Could not identify CPUS for " + "mode %d, ignoring\n", + phba->irq_chann_mode); + phba->irq_chann_mode = NORMAL_MODE; + phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; + } else { + phba->cfg_irq_chann = cpumask_weight(aff_mask); + + /* If no hyperthread mode, then set hdwq count to + * aff_mask weight as well + */ + if (phba->irq_chann_mode == NHT_MODE) + phba->cfg_hdw_queue = phba->cfg_irq_chann; + + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "8543 lpfc_irq_chann set to %u " + "(mode: %d)\n", phba->cfg_irq_chann, + phba->irq_chann_mode); + } + } else { + if (val > LPFC_IRQ_CHANN_MAX) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "8545 lpfc_irq_chann attribute cannot " + "be set to %u, allowed range is " + "[%u,%u]\n", + val, + LPFC_IRQ_CHANN_MIN, + LPFC_IRQ_CHANN_MAX); + phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; + return -EINVAL; + } + if (phba->sli_rev == LPFC_SLI_REV4) { + phba->cfg_irq_chann = val; + } else { + phba->cfg_irq_chann = 2; + phba->cfg_hdw_queue = 1; + } + } + + return 0; +} + +/** + * lpfc_irq_chann_show - Display value of irq_chann + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains a string with the list sizes + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); +} + +static DEVICE_ATTR_RO(lpfc_irq_chann); + +/* +# lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. +# 0 = HBA resets disabled +# 1 = HBA resets enabled (default) +# 2 = HBA reset via PCI bus reset enabled +# Value range is [0,2]. Default value is 1. +*/ +LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); + +/* +# lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. +# 0 = HBA Heartbeat disabled +# 1 = HBA Heartbeat enabled (default) +# Value range is [0,1]. Default value is 1. +*/ +LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); + +/* +# lpfc_EnableXLane: Enable Express Lane Feature +# 0x0 Express Lane Feature disabled +# 0x1 Express Lane Feature enabled +# Value range is [0,1]. Default value is 0. +*/ +LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); + +/* +# lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature +# 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) +# Value range is [0x0,0x7f]. Default value is 0 +*/ +LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); + +/* +# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) +# 0 = BlockGuard disabled (default) +# 1 = BlockGuard enabled +# Value range is [0,1]. Default value is 0. +*/ +LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); + +/* +# lpfc_prot_mask: +# - Bit mask of host protection capabilities used to register with the +# SCSI mid-layer +# - Only meaningful if BG is turned on (lpfc_enable_bg=1). +# - Allows you to ultimately specify which profiles to use +# - Default will result in registering capabilities for all profiles. +# - SHOST_DIF_TYPE1_PROTECTION 1 +# HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection +# - SHOST_DIX_TYPE0_PROTECTION 8 +# HBA supports DIX Type 0: Host to HBA protection only +# - SHOST_DIX_TYPE1_PROTECTION 16 +# HBA supports DIX Type 1: Host to HBA Type 1 protection +# +*/ +LPFC_ATTR(prot_mask, + (SHOST_DIF_TYPE1_PROTECTION | + SHOST_DIX_TYPE0_PROTECTION | + SHOST_DIX_TYPE1_PROTECTION), + 0, + (SHOST_DIF_TYPE1_PROTECTION | + SHOST_DIX_TYPE0_PROTECTION | + SHOST_DIX_TYPE1_PROTECTION), + "T10-DIF host protection capabilities mask"); + +/* +# lpfc_prot_guard: +# - Bit mask of protection guard types to register with the SCSI mid-layer +# - Guard types are currently either 1) T10-DIF CRC 2) IP checksum +# - Allows you to ultimately specify which profiles to use +# - Default will result in registering capabilities for all guard types +# +*/ +LPFC_ATTR(prot_guard, + SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, + "T10-DIF host protection guard type"); + +/* + * Delay initial NPort discovery when Clean Address bit is cleared in + * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. + * This parameter can have value 0 or 1. + * When this parameter is set to 0, no delay is added to the initial + * discovery. + * When this parameter is set to non-zero value, initial Nport discovery is + * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC + * accept and FCID/Fabric name/Fabric portname is changed. + * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion + * when Clean Address bit is cleared in FLOGI/FDISC + * accept and FCID/Fabric name/Fabric portname is changed. + * Default value is 0. + */ +LPFC_ATTR(delay_discovery, 0, 0, 1, + "Delay NPort discovery when Clean Address bit is cleared."); + +/* + * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count + * This value can be set to values between 64 and 4096. The default value + * is 64, but may be increased to allow for larger Max I/O sizes. The scsi + * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). + * Because of the additional overhead involved in setting up T10-DIF, + * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 + * and will be limited to 512 if BlockGuard is enabled under SLI3. + */ +static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; +module_param(lpfc_sg_seg_cnt, uint, 0444); +MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); + +/** + * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes + * configured for the adapter + * @dev: class converted to a Scsi_host structure. + * @attr: device attribute, not used. + * @buf: on return contains a string with the list sizes + * + * Returns: size of formatted string. + **/ +static ssize_t +lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int len; + + len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", + phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); + + len += scnprintf(buf + len, PAGE_SIZE - len, + "Cfg: %d SCSI: %d NVME: %d\n", + phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, + phba->cfg_nvme_seg_cnt); + return len; +} + +static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); + +/** + * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value + * @phba: lpfc_hba pointer. + * @val: contains the initial value + * + * Description: + * Validates the initial value is within range and assigns it to the + * adapter. If not in range, an error message is posted and the + * default value is assigned. + * + * Returns: + * zero if value is in range and is set + * -EINVAL if value was out of range + **/ +static int +lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) +{ + if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { + phba->cfg_sg_seg_cnt = val; + return 0; + } + lpfc_printf_log(phba, KERN_ERR, LOG_INIT, + "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " + "allowed range is [%d, %d]\n", + val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); + phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; + return -EINVAL; +} + +/* + * lpfc_enable_mds_diags: Enable MDS Diagnostics + * 0 = MDS Diagnostics disabled (default) + * 1 = MDS Diagnostics enabled + * Value range is [0,1]. Default value is 0. + */ +LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); + +/* + * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size + * 0 = Disable firmware logging (default) + * [1-4] = Multiple of 1/4th Mb of host memory for FW logging + * Value range [0..4]. Default value is 0 + */ +LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); +lpfc_param_show(ras_fwlog_buffsize); + +static ssize_t +lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) +{ + int ret = 0; + enum ras_state state; + + if (!lpfc_rangecheck(val, 0, 4)) + return -EINVAL; + + if (phba->cfg_ras_fwlog_buffsize == val) + return 0; + + if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) + return -EINVAL; + + spin_lock_irq(&phba->hbalock); + state = phba->ras_fwlog.state; + spin_unlock_irq(&phba->hbalock); + + if (state == REG_INPROGRESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " + "registration is in progress\n"); + return -EBUSY; + } + + /* For disable logging: stop the logs and free the DMA. + * For ras_fwlog_buffsize size change we still need to free and + * reallocate the DMA in lpfc_sli4_ras_fwlog_init. + */ + phba->cfg_ras_fwlog_buffsize = val; + if (state == ACTIVE) { + lpfc_ras_stop_fwlog(phba); + lpfc_sli4_ras_dma_free(phba); + } + + lpfc_sli4_ras_init(phba); + if (phba->ras_fwlog.ras_enabled) + ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, + LPFC_RAS_ENABLE_LOGGING); + return ret; +} + +lpfc_param_store(ras_fwlog_buffsize); +static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); + +/* + * lpfc_ras_fwlog_level: Firmware logging verbosity level + * Valid only if firmware logging is enabled + * 0(Least Verbosity) 4 (most verbosity) + * Value range is [0..4]. Default value is 0 + */ +LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); + +/* + * lpfc_ras_fwlog_func: Firmware logging enabled on function number + * Default function which has RAS support : 0 + * Value Range is [0..7]. + * FW logging is a global action and enablement is via a specific + * port. + */ +LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 7, "Firmware Logging Enabled on Function"); + +/* + * lpfc_enable_bbcr: Enable BB Credit Recovery + * 0 = BB Credit Recovery disabled + * 1 = BB Credit Recovery enabled (default) + * Value range is [0,1]. Default value is 1. + */ +LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); + +/* Signaling module parameters */ +int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ +module_param(lpfc_fabric_cgn_frequency, int, 0444); +MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); + +int lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ +module_param(lpfc_acqe_cgn_frequency, int, 0444); +MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); + +int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ +module_param(lpfc_use_cgn_signal, int, 0444); +MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); + +/* + * lpfc_enable_dpp: Enable DPP on G7 + * 0 = DPP on G7 disabled + * 1 = DPP on G7 enabled (default) + * Value range is [0,1]. Default value is 1. + */ +LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); + +/* + * lpfc_enable_mi: Enable FDMI MIB + * 0 = disabled + * 1 = enabled (default) + * Value range is [0,1]. + */ +LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); + +/* + * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if + * either vmid_app_header or vmid_priority_tagging is enabled. + * 4 - 255 = vmid support enabled for 4-255 VMs + * Value range is [4,255]. + */ +LPFC_ATTR_RW(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, + "Maximum number of VMs supported"); + +/* + * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours + * 0 = Timeout is disabled + * Value range is [0,24]. + */ +LPFC_ATTR_RW(vmid_inactivity_timeout, 4, 0, 24, + "Inactivity timeout in hours"); + +/* + * lpfc_vmid_app_header: Enable App Header VMID support + * 0 = Support is disabled (default) + * 1 = Support is enabled + * Value range is [0,1]. + */ +LPFC_ATTR_RW(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, + LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, + "Enable App Header VMID support"); + +/* + * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support + * 0 = Support is disabled (default) + * 1 = Allow supported targets only + * 2 = Allow all targets + * Value range is [0,2]. + */ +LPFC_ATTR_RW(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, + LPFC_VMID_PRIO_TAG_DISABLE, + LPFC_VMID_PRIO_TAG_ALL_TARGETS, + "Enable Priority Tagging VMID support"); + +static struct attribute *lpfc_hba_attrs[] = { + &dev_attr_nvme_info.attr, + &dev_attr_scsi_stat.attr, + &dev_attr_bg_info.attr, + &dev_attr_bg_guard_err.attr, + &dev_attr_bg_apptag_err.attr, + &dev_attr_bg_reftag_err.attr, + &dev_attr_info.attr, + &dev_attr_serialnum.attr, + &dev_attr_modeldesc.attr, + &dev_attr_modelname.attr, + &dev_attr_programtype.attr, + &dev_attr_portnum.attr, + &dev_attr_fwrev.attr, + &dev_attr_hdw.attr, + &dev_attr_option_rom_version.attr, + &dev_attr_link_state.attr, + &dev_attr_num_discovered_ports.attr, + &dev_attr_lpfc_drvr_version.attr, + &dev_attr_lpfc_enable_fip.attr, + &dev_attr_lpfc_temp_sensor.attr, + &dev_attr_lpfc_log_verbose.attr, + &dev_attr_lpfc_lun_queue_depth.attr, + &dev_attr_lpfc_tgt_queue_depth.attr, + &dev_attr_lpfc_hba_queue_depth.attr, + &dev_attr_lpfc_peer_port_login.attr, + &dev_attr_lpfc_nodev_tmo.attr, + &dev_attr_lpfc_devloss_tmo.attr, + &dev_attr_lpfc_enable_fc4_type.attr, + &dev_attr_lpfc_fcp_class.attr, + &dev_attr_lpfc_use_adisc.attr, + &dev_attr_lpfc_first_burst_size.attr, + &dev_attr_lpfc_ack0.attr, + &dev_attr_lpfc_xri_rebalancing.attr, + &dev_attr_lpfc_topology.attr, + &dev_attr_lpfc_scan_down.attr, + &dev_attr_lpfc_link_speed.attr, + &dev_attr_lpfc_fcp_io_sched.attr, + &dev_attr_lpfc_ns_query.attr, + &dev_attr_lpfc_fcp2_no_tgt_reset.attr, + &dev_attr_lpfc_cr_delay.attr, + &dev_attr_lpfc_cr_count.attr, + &dev_attr_lpfc_multi_ring_support.attr, + &dev_attr_lpfc_multi_ring_rctl.attr, + &dev_attr_lpfc_multi_ring_type.attr, + &dev_attr_lpfc_fdmi_on.attr, + &dev_attr_lpfc_enable_SmartSAN.attr, + &dev_attr_lpfc_max_luns.attr, + &dev_attr_lpfc_enable_npiv.attr, + &dev_attr_lpfc_fcf_failover_policy.attr, + &dev_attr_lpfc_enable_rrq.attr, + &dev_attr_lpfc_fcp_wait_abts_rsp.attr, + &dev_attr_nport_evt_cnt.attr, + &dev_attr_board_mode.attr, + &dev_attr_max_vpi.attr, + &dev_attr_used_vpi.attr, + &dev_attr_max_rpi.attr, + &dev_attr_used_rpi.attr, + &dev_attr_max_xri.attr, + &dev_attr_used_xri.attr, + &dev_attr_npiv_info.attr, + &dev_attr_issue_reset.attr, + &dev_attr_lpfc_poll.attr, + &dev_attr_lpfc_poll_tmo.attr, + &dev_attr_lpfc_task_mgmt_tmo.attr, + &dev_attr_lpfc_use_msi.attr, + &dev_attr_lpfc_nvme_oas.attr, + &dev_attr_lpfc_nvme_embed_cmd.attr, + &dev_attr_lpfc_fcp_imax.attr, + &dev_attr_lpfc_force_rscn.attr, + &dev_attr_lpfc_cq_poll_threshold.attr, + &dev_attr_lpfc_cq_max_proc_limit.attr, + &dev_attr_lpfc_fcp_cpu_map.attr, + &dev_attr_lpfc_fcp_mq_threshold.attr, + &dev_attr_lpfc_hdw_queue.attr, + &dev_attr_lpfc_irq_chann.attr, + &dev_attr_lpfc_suppress_rsp.attr, + &dev_attr_lpfc_nvmet_mrq.attr, + &dev_attr_lpfc_nvmet_mrq_post.attr, + &dev_attr_lpfc_nvme_enable_fb.attr, + &dev_attr_lpfc_nvmet_fb_size.attr, + &dev_attr_lpfc_enable_bg.attr, + &dev_attr_lpfc_enable_hba_reset.attr, + &dev_attr_lpfc_enable_hba_heartbeat.attr, + &dev_attr_lpfc_EnableXLane.attr, + &dev_attr_lpfc_XLanePriority.attr, + &dev_attr_lpfc_xlane_lun.attr, + &dev_attr_lpfc_xlane_tgt.attr, + &dev_attr_lpfc_xlane_vpt.attr, + &dev_attr_lpfc_xlane_lun_state.attr, + &dev_attr_lpfc_xlane_lun_status.attr, + &dev_attr_lpfc_xlane_priority.attr, + &dev_attr_lpfc_sg_seg_cnt.attr, + &dev_attr_lpfc_max_scsicmpl_time.attr, + &dev_attr_lpfc_aer_support.attr, + &dev_attr_lpfc_aer_state_cleanup.attr, + &dev_attr_lpfc_sriov_nr_virtfn.attr, + &dev_attr_lpfc_req_fw_upgrade.attr, + &dev_attr_lpfc_suppress_link_up.attr, + &dev_attr_iocb_hw.attr, + &dev_attr_pls.attr, + &dev_attr_pt.attr, + &dev_attr_txq_hw.attr, + &dev_attr_txcmplq_hw.attr, + &dev_attr_lpfc_sriov_hw_max_virtfn.attr, + &dev_attr_protocol.attr, + &dev_attr_lpfc_xlane_supported.attr, + &dev_attr_lpfc_enable_mds_diags.attr, + &dev_attr_lpfc_ras_fwlog_buffsize.attr, + &dev_attr_lpfc_ras_fwlog_level.attr, + &dev_attr_lpfc_ras_fwlog_func.attr, + &dev_attr_lpfc_enable_bbcr.attr, + &dev_attr_lpfc_enable_dpp.attr, + &dev_attr_lpfc_enable_mi.attr, + &dev_attr_cmf_info.attr, + &dev_attr_lpfc_max_vmid.attr, + &dev_attr_lpfc_vmid_inactivity_timeout.attr, + &dev_attr_lpfc_vmid_app_header.attr, + &dev_attr_lpfc_vmid_priority_tagging.attr, + NULL, +}; + +static const struct attribute_group lpfc_hba_attr_group = { + .attrs = lpfc_hba_attrs +}; + +const struct attribute_group *lpfc_hba_groups[] = { + &lpfc_hba_attr_group, + NULL +}; + +static struct attribute *lpfc_vport_attrs[] = { + &dev_attr_info.attr, + &dev_attr_link_state.attr, + &dev_attr_num_discovered_ports.attr, + &dev_attr_lpfc_drvr_version.attr, + &dev_attr_lpfc_log_verbose.attr, + &dev_attr_lpfc_lun_queue_depth.attr, + &dev_attr_lpfc_tgt_queue_depth.attr, + &dev_attr_lpfc_nodev_tmo.attr, + &dev_attr_lpfc_devloss_tmo.attr, + &dev_attr_lpfc_hba_queue_depth.attr, + &dev_attr_lpfc_peer_port_login.attr, + &dev_attr_lpfc_restrict_login.attr, + &dev_attr_lpfc_fcp_class.attr, + &dev_attr_lpfc_use_adisc.attr, + &dev_attr_lpfc_first_burst_size.attr, + &dev_attr_lpfc_max_luns.attr, + &dev_attr_nport_evt_cnt.attr, + &dev_attr_npiv_info.attr, + &dev_attr_lpfc_enable_da_id.attr, + &dev_attr_lpfc_max_scsicmpl_time.attr, + &dev_attr_lpfc_static_vport.attr, + &dev_attr_cmf_info.attr, + NULL, +}; + +static const struct attribute_group lpfc_vport_attr_group = { + .attrs = lpfc_vport_attrs +}; + +const struct attribute_group *lpfc_vport_groups[] = { + &lpfc_vport_attr_group, + NULL +}; + +/** + * sysfs_ctlreg_write - Write method for writing to ctlreg + * @filp: open sysfs file + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: contains the data to be written to the adapter IOREG space. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. + * Uses the adapter io control registers to send buf contents to the adapter. + * + * Returns: + * -ERANGE off and count combo out of range + * -EINVAL off, count or buff address invalid + * -EPERM adapter is offline + * value of count, buf contents written + **/ +static ssize_t +sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + size_t buf_off; + struct device *dev = container_of(kobj, struct device, kobj); + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + if (phba->sli_rev >= LPFC_SLI_REV4) + return -EPERM; + + if ((off + count) > FF_REG_AREA_SIZE) + return -ERANGE; + + if (count <= LPFC_REG_WRITE_KEY_SIZE) + return 0; + + if (off % 4 || count % 4 || (unsigned long)buf % 4) + return -EINVAL; + + /* This is to protect HBA registers from accidental writes. */ + if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) + return -EINVAL; + + if (!(vport->fc_flag & FC_OFFLINE_MODE)) + return -EPERM; + + spin_lock_irq(&phba->hbalock); + for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; + buf_off += sizeof(uint32_t)) + writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), + phba->ctrl_regs_memmap_p + off + buf_off); + + spin_unlock_irq(&phba->hbalock); + + return count; +} + +/** + * sysfs_ctlreg_read - Read method for reading from ctlreg + * @filp: open sysfs file + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: if successful contains the data from the adapter IOREG space. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. + * Uses the adapter io control registers to read data into buf. + * + * Returns: + * -ERANGE off and count combo out of range + * -EINVAL off, count or buff address invalid + * value of count, buf contents read + **/ +static ssize_t +sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + size_t buf_off; + uint32_t * tmp_ptr; + struct device *dev = container_of(kobj, struct device, kobj); + struct Scsi_Host *shost = class_to_shost(dev); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + if (phba->sli_rev >= LPFC_SLI_REV4) + return -EPERM; + + if (off > FF_REG_AREA_SIZE) + return -ERANGE; + + if ((off + count) > FF_REG_AREA_SIZE) + count = FF_REG_AREA_SIZE - off; + + if (count == 0) return 0; + + if (off % 4 || count % 4 || (unsigned long)buf % 4) + return -EINVAL; + + spin_lock_irq(&phba->hbalock); + + for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { + tmp_ptr = (uint32_t *)(buf + buf_off); + *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); + } + + spin_unlock_irq(&phba->hbalock); + + return count; +} + +static struct bin_attribute sysfs_ctlreg_attr = { + .attr = { + .name = "ctlreg", + .mode = S_IRUSR | S_IWUSR, + }, + .size = 256, + .read = sysfs_ctlreg_read, + .write = sysfs_ctlreg_write, +}; + +/** + * sysfs_mbox_write - Write method for writing information via mbox + * @filp: open sysfs file + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: contains the data to be written to sysfs mbox. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Deprecated function. All mailbox access from user space is performed via the + * bsg interface. + * + * Returns: + * -EPERM operation not permitted + **/ +static ssize_t +sysfs_mbox_write(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + return -EPERM; +} + +/** + * sysfs_mbox_read - Read method for reading information via mbox + * @filp: open sysfs file + * @kobj: kernel kobject that contains the kernel class device. + * @bin_attr: kernel attributes passed to us. + * @buf: contains the data to be read from sysfs mbox. + * @off: offset into buffer to beginning of data. + * @count: bytes to transfer. + * + * Description: + * Deprecated function. All mailbox access from user space is performed via the + * bsg interface. + * + * Returns: + * -EPERM operation not permitted + **/ +static ssize_t +sysfs_mbox_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + return -EPERM; +} + +static struct bin_attribute sysfs_mbox_attr = { + .attr = { + .name = "mbox", + .mode = S_IRUSR | S_IWUSR, + }, + .size = MAILBOX_SYSFS_MAX, + .read = sysfs_mbox_read, + .write = sysfs_mbox_write, +}; + +/** + * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries + * @vport: address of lpfc vport structure. + * + * Return codes: + * zero on success + * error return code from sysfs_create_bin_file() + **/ +int +lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) +{ + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + int error; + + /* Virtual ports do not need ctrl_reg and mbox */ + if (vport->port_type == LPFC_NPIV_PORT) + return 0; + + error = sysfs_create_bin_file(&shost->shost_dev.kobj, + &sysfs_ctlreg_attr); + if (error) + goto out; + + error = sysfs_create_bin_file(&shost->shost_dev.kobj, + &sysfs_mbox_attr); + if (error) + goto out_remove_ctlreg_attr; + + return 0; +out_remove_ctlreg_attr: + sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); +out: + return error; +} + +/** + * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries + * @vport: address of lpfc vport structure. + **/ +void +lpfc_free_sysfs_attr(struct lpfc_vport *vport) +{ + struct Scsi_Host *shost = lpfc_shost_from_vport(vport); + + /* Virtual ports do not need ctrl_reg and mbox */ + if (vport->port_type == LPFC_NPIV_PORT) + return; + sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); + sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); +} + +/* + * Dynamic FC Host Attributes Support + */ + +/** + * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host + * @shost: kernel scsi host pointer. + **/ +static void +lpfc_get_host_symbolic_name(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; + + lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), + sizeof fc_host_symbolic_name(shost)); +} + +/** + * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id + * @shost: kernel scsi host pointer. + **/ +static void +lpfc_get_host_port_id(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + + /* note: fc_myDID already in cpu endianness */ + fc_host_port_id(shost) = vport->fc_myDID; +} + +/** + * lpfc_get_host_port_type - Set the value of the scsi host port type + * @shost: kernel scsi host pointer. + **/ +static void +lpfc_get_host_port_type(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + spin_lock_irq(shost->host_lock); + + if (vport->port_type == LPFC_NPIV_PORT) { + fc_host_port_type(shost) = FC_PORTTYPE_NPIV; + } else if (lpfc_is_link_up(phba)) { + if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { + if (vport->fc_flag & FC_PUBLIC_LOOP) + fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; + else + fc_host_port_type(shost) = FC_PORTTYPE_LPORT; + } else { + if (vport->fc_flag & FC_FABRIC) + fc_host_port_type(shost) = FC_PORTTYPE_NPORT; + else + fc_host_port_type(shost) = FC_PORTTYPE_PTP; + } + } else + fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; + + spin_unlock_irq(shost->host_lock); +} + +/** + * lpfc_get_host_port_state - Set the value of the scsi host port state + * @shost: kernel scsi host pointer. + **/ +static void +lpfc_get_host_port_state(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + spin_lock_irq(shost->host_lock); + + if (vport->fc_flag & FC_OFFLINE_MODE) + fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; + else { + switch (phba->link_state) { + case LPFC_LINK_UNKNOWN: + case LPFC_LINK_DOWN: + fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; + break; + case LPFC_LINK_UP: + case LPFC_CLEAR_LA: + case LPFC_HBA_READY: + /* Links up, reports port state accordingly */ + if (vport->port_state < LPFC_VPORT_READY) + fc_host_port_state(shost) = + FC_PORTSTATE_BYPASSED; + else + fc_host_port_state(shost) = + FC_PORTSTATE_ONLINE; + break; + case LPFC_HBA_ERROR: + fc_host_port_state(shost) = FC_PORTSTATE_ERROR; + break; + default: + fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; + break; + } + } + + spin_unlock_irq(shost->host_lock); +} + +/** + * lpfc_get_host_speed - Set the value of the scsi host speed + * @shost: kernel scsi host pointer. + **/ +static void +lpfc_get_host_speed(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + + spin_lock_irq(shost->host_lock); + + if ((lpfc_is_link_up(phba)) && (!(phba->hba_flag & HBA_FCOE_MODE))) { + switch(phba->fc_linkspeed) { + case LPFC_LINK_SPEED_1GHZ: + fc_host_speed(shost) = FC_PORTSPEED_1GBIT; + break; + case LPFC_LINK_SPEED_2GHZ: + fc_host_speed(shost) = FC_PORTSPEED_2GBIT; + break; + case LPFC_LINK_SPEED_4GHZ: + fc_host_speed(shost) = FC_PORTSPEED_4GBIT; + break; + case LPFC_LINK_SPEED_8GHZ: + fc_host_speed(shost) = FC_PORTSPEED_8GBIT; + break; + case LPFC_LINK_SPEED_10GHZ: + fc_host_speed(shost) = FC_PORTSPEED_10GBIT; + break; + case LPFC_LINK_SPEED_16GHZ: + fc_host_speed(shost) = FC_PORTSPEED_16GBIT; + break; + case LPFC_LINK_SPEED_32GHZ: + fc_host_speed(shost) = FC_PORTSPEED_32GBIT; + break; + case LPFC_LINK_SPEED_64GHZ: + fc_host_speed(shost) = FC_PORTSPEED_64GBIT; + break; + case LPFC_LINK_SPEED_128GHZ: + fc_host_speed(shost) = FC_PORTSPEED_128GBIT; + break; + case LPFC_LINK_SPEED_256GHZ: + fc_host_speed(shost) = FC_PORTSPEED_256GBIT; + break; + default: + fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; + break; + } + } else if (lpfc_is_link_up(phba) && (phba->hba_flag & HBA_FCOE_MODE)) { + switch (phba->fc_linkspeed) { + case LPFC_ASYNC_LINK_SPEED_1GBPS: + fc_host_speed(shost) = FC_PORTSPEED_1GBIT; + break; + case LPFC_ASYNC_LINK_SPEED_10GBPS: + fc_host_speed(shost) = FC_PORTSPEED_10GBIT; + break; + case LPFC_ASYNC_LINK_SPEED_20GBPS: + fc_host_speed(shost) = FC_PORTSPEED_20GBIT; + break; + case LPFC_ASYNC_LINK_SPEED_25GBPS: + fc_host_speed(shost) = FC_PORTSPEED_25GBIT; + break; + case LPFC_ASYNC_LINK_SPEED_40GBPS: + fc_host_speed(shost) = FC_PORTSPEED_40GBIT; + break; + case LPFC_ASYNC_LINK_SPEED_100GBPS: + fc_host_speed(shost) = FC_PORTSPEED_100GBIT; + break; + default: + fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; + break; + } + } else + fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; + + spin_unlock_irq(shost->host_lock); +} + +/** + * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name + * @shost: kernel scsi host pointer. + **/ +static void +lpfc_get_host_fabric_name (struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + u64 node_name; + + spin_lock_irq(shost->host_lock); + + if ((vport->port_state > LPFC_FLOGI) && + ((vport->fc_flag & FC_FABRIC) || + ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) && + (vport->fc_flag & FC_PUBLIC_LOOP)))) + node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); + else + /* fabric is local port if there is no F/FL_Port */ + node_name = 0; + + spin_unlock_irq(shost->host_lock); + + fc_host_fabric_name(shost) = node_name; +} + +/** + * lpfc_get_stats - Return statistical information about the adapter + * @shost: kernel scsi host pointer. + * + * Notes: + * NULL on error for link down, no mbox pool, sli2 active, + * management not allowed, memory allocation error, or mbox error. + * + * Returns: + * NULL for error + * address of the adapter host statistics + **/ +static struct fc_host_statistics * +lpfc_get_stats(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct lpfc_sli *psli = &phba->sli; + struct fc_host_statistics *hs = &phba->link_stats; + struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; + LPFC_MBOXQ_t *pmboxq; + MAILBOX_t *pmb; + int rc = 0; + + /* + * prevent udev from issuing mailbox commands until the port is + * configured. + */ + if (phba->link_state < LPFC_LINK_DOWN || + !phba->mbox_mem_pool || + (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) + return NULL; + + if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) + return NULL; + + pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmboxq) + return NULL; + memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); + + pmb = &pmboxq->u.mb; + pmb->mbxCommand = MBX_READ_STATUS; + pmb->mbxOwner = OWN_HOST; + pmboxq->ctx_buf = NULL; + pmboxq->vport = vport; + + if (vport->fc_flag & FC_OFFLINE_MODE) { + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + mempool_free(pmboxq, phba->mbox_mem_pool); + return NULL; + } + } else { + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + if (rc != MBX_SUCCESS) { + if (rc != MBX_TIMEOUT) + mempool_free(pmboxq, phba->mbox_mem_pool); + return NULL; + } + } + + memset(hs, 0, sizeof (struct fc_host_statistics)); + + hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; + hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; + + /* + * The MBX_READ_STATUS returns tx_k_bytes which has to be + * converted to words. + * + * Check if extended byte flag is set, to know when to collect upper + * bits of 64 bit wide statistics counter. + */ + if (pmb->un.varRdStatus.xkb & RD_ST_XKB) { + hs->tx_words = (u64) + ((((u64)(pmb->un.varRdStatus.xmit_xkb & + RD_ST_XMIT_XKB_MASK) << 32) | + (u64)pmb->un.varRdStatus.xmitByteCnt) * + (u64)256); + hs->rx_words = (u64) + ((((u64)(pmb->un.varRdStatus.rcv_xkb & + RD_ST_RCV_XKB_MASK) << 32) | + (u64)pmb->un.varRdStatus.rcvByteCnt) * + (u64)256); + } else { + hs->tx_words = (uint64_t) + ((uint64_t)pmb->un.varRdStatus.xmitByteCnt + * (uint64_t)256); + hs->rx_words = (uint64_t) + ((uint64_t)pmb->un.varRdStatus.rcvByteCnt + * (uint64_t)256); + } + + memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); + pmb->mbxCommand = MBX_READ_LNK_STAT; + pmb->mbxOwner = OWN_HOST; + pmboxq->ctx_buf = NULL; + pmboxq->vport = vport; + + if (vport->fc_flag & FC_OFFLINE_MODE) { + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + mempool_free(pmboxq, phba->mbox_mem_pool); + return NULL; + } + } else { + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + if (rc != MBX_SUCCESS) { + if (rc != MBX_TIMEOUT) + mempool_free(pmboxq, phba->mbox_mem_pool); + return NULL; + } + } + + hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; + hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; + hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; + hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; + hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; + hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; + hs->error_frames = pmb->un.varRdLnk.crcCnt; + + hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); + hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); + + hs->link_failure_count -= lso->link_failure_count; + hs->loss_of_sync_count -= lso->loss_of_sync_count; + hs->loss_of_signal_count -= lso->loss_of_signal_count; + hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; + hs->invalid_tx_word_count -= lso->invalid_tx_word_count; + hs->invalid_crc_count -= lso->invalid_crc_count; + hs->error_frames -= lso->error_frames; + + if (phba->hba_flag & HBA_FCOE_MODE) { + hs->lip_count = -1; + hs->nos_count = (phba->link_events >> 1); + hs->nos_count -= lso->link_events; + } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { + hs->lip_count = (phba->fc_eventTag >> 1); + hs->lip_count -= lso->link_events; + hs->nos_count = -1; + } else { + hs->lip_count = -1; + hs->nos_count = (phba->fc_eventTag >> 1); + hs->nos_count -= lso->link_events; + } + + hs->dumped_frames = -1; + + hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; + + mempool_free(pmboxq, phba->mbox_mem_pool); + + return hs; +} + +/** + * lpfc_reset_stats - Copy the adapter link stats information + * @shost: kernel scsi host pointer. + **/ +static void +lpfc_reset_stats(struct Scsi_Host *shost) +{ + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + struct lpfc_sli *psli = &phba->sli; + struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; + LPFC_MBOXQ_t *pmboxq; + MAILBOX_t *pmb; + int rc = 0; + + if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) + return; + + pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); + if (!pmboxq) + return; + memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); + + pmb = &pmboxq->u.mb; + pmb->mbxCommand = MBX_READ_STATUS; + pmb->mbxOwner = OWN_HOST; + pmb->un.varWords[0] = 0x1; /* reset request */ + pmboxq->ctx_buf = NULL; + pmboxq->vport = vport; + + if ((vport->fc_flag & FC_OFFLINE_MODE) || + (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + } else { + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + if (rc != MBX_SUCCESS) { + if (rc != MBX_TIMEOUT) + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + } + + memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); + pmb->mbxCommand = MBX_READ_LNK_STAT; + pmb->mbxOwner = OWN_HOST; + pmboxq->ctx_buf = NULL; + pmboxq->vport = vport; + + if ((vport->fc_flag & FC_OFFLINE_MODE) || + (!(psli->sli_flag & LPFC_SLI_ACTIVE))) { + rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + } else { + rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); + if (rc != MBX_SUCCESS) { + if (rc != MBX_TIMEOUT) + mempool_free(pmboxq, phba->mbox_mem_pool); + return; + } + } + + lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; + lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; + lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; + lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; + lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; + lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; + lso->error_frames = pmb->un.varRdLnk.crcCnt; + if (phba->hba_flag & HBA_FCOE_MODE) + lso->link_events = (phba->link_events >> 1); + else + lso->link_events = (phba->fc_eventTag >> 1); + + atomic64_set(&phba->cgn_acqe_stat.warn, 0); + atomic64_set(&phba->cgn_acqe_stat.alarm, 0); + + memset(&shost_to_fc_host(shost)->fpin_stats, 0, + sizeof(shost_to_fc_host(shost)->fpin_stats)); + + psli->stats_start = ktime_get_seconds(); + + mempool_free(pmboxq, phba->mbox_mem_pool); + + return; +} + +/* + * The LPFC driver treats linkdown handling as target loss events so there + * are no sysfs handlers for link_down_tmo. + */ + +/** + * lpfc_get_node_by_target - Return the nodelist for a target + * @starget: kernel scsi target pointer. + * + * Returns: + * address of the node list if found + * NULL target not found + **/ +static struct lpfc_nodelist * +lpfc_get_node_by_target(struct scsi_target *starget) +{ + struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_nodelist *ndlp; + + spin_lock_irq(shost->host_lock); + /* Search for this, mapped, target ID */ + list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { + if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && + starget->id == ndlp->nlp_sid) { + spin_unlock_irq(shost->host_lock); + return ndlp; + } + } + spin_unlock_irq(shost->host_lock); + return NULL; +} + +/** + * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 + * @starget: kernel scsi target pointer. + **/ +static void +lpfc_get_starget_port_id(struct scsi_target *starget) +{ + struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); + + fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; +} + +/** + * lpfc_get_starget_node_name - Set the target node name + * @starget: kernel scsi target pointer. + * + * Description: Set the target node name to the ndlp node name wwn or zero. + **/ +static void +lpfc_get_starget_node_name(struct scsi_target *starget) +{ + struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); + + fc_starget_node_name(starget) = + ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; +} + +/** + * lpfc_get_starget_port_name - Set the target port name + * @starget: kernel scsi target pointer. + * + * Description: set the target port name to the ndlp port name wwn or zero. + **/ +static void +lpfc_get_starget_port_name(struct scsi_target *starget) +{ + struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); + + fc_starget_port_name(starget) = + ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; +} + +/** + * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo + * @rport: fc rport address. + * @timeout: new value for dev loss tmo. + * + * Description: + * If timeout is non zero set the dev_loss_tmo to timeout, else set + * dev_loss_tmo to one. + **/ +static void +lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) +{ + struct lpfc_rport_data *rdata = rport->dd_data; + struct lpfc_nodelist *ndlp = rdata->pnode; +#if (IS_ENABLED(CONFIG_NVME_FC)) + struct lpfc_nvme_rport *nrport = NULL; +#endif + + if (timeout) + rport->dev_loss_tmo = timeout; + else + rport->dev_loss_tmo = 1; + + if (!ndlp) { + dev_info(&rport->dev, "Cannot find remote node to " + "set rport dev loss tmo, port_id x%x\n", + rport->port_id); + return; + } + +#if (IS_ENABLED(CONFIG_NVME_FC)) + nrport = lpfc_ndlp_get_nrport(ndlp); + + if (nrport && nrport->remoteport) + nvme_fc_set_remoteport_devloss(nrport->remoteport, + rport->dev_loss_tmo); +#endif +} + +/* + * lpfc_rport_show_function - Return rport target information + * + * Description: + * Macro that uses field to generate a function with the name lpfc_show_rport_ + * + * lpfc_show_rport_##field: returns the bytes formatted in buf + * @cdev: class converted to an fc_rport. + * @buf: on return contains the target_field or zero. + * + * Returns: size of formatted string. + **/ +#define lpfc_rport_show_function(field, format_string, sz, cast) \ +static ssize_t \ +lpfc_show_rport_##field (struct device *dev, \ + struct device_attribute *attr, \ + char *buf) \ +{ \ + struct fc_rport *rport = transport_class_to_rport(dev); \ + struct lpfc_rport_data *rdata = rport->hostdata; \ + return scnprintf(buf, sz, format_string, \ + (rdata->target) ? cast rdata->target->field : 0); \ +} + +#define lpfc_rport_rd_attr(field, format_string, sz) \ + lpfc_rport_show_function(field, format_string, sz, ) \ +static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) + +/** + * lpfc_set_vport_symbolic_name - Set the vport's symbolic name + * @fc_vport: The fc_vport who's symbolic name has been changed. + * + * Description: + * This function is called by the transport after the @fc_vport's symbolic name + * has been changed. This function re-registers the symbolic name with the + * switch to propagate the change into the fabric if the vport is active. + **/ +static void +lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) +{ + struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; + + if (vport->port_state == LPFC_VPORT_READY) + lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); +} + +/** + * lpfc_hba_log_verbose_init - Set hba's log verbose level + * @phba: Pointer to lpfc_hba struct. + * @verbose: Verbose level to set. + * + * This function is called by the lpfc_get_cfgparam() routine to set the + * module lpfc_log_verbose into the @phba cfg_log_verbose for use with + * log message according to the module's lpfc_log_verbose parameter setting + * before hba port or vport created. + **/ +static void +lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) +{ + phba->cfg_log_verbose = verbose; +} + +struct fc_function_template lpfc_transport_functions = { + /* fixed attributes the driver supports */ + .show_host_node_name = 1, + .show_host_port_name = 1, + .show_host_supported_classes = 1, + .show_host_supported_fc4s = 1, + .show_host_supported_speeds = 1, + .show_host_maxframe_size = 1, + + .get_host_symbolic_name = lpfc_get_host_symbolic_name, + .show_host_symbolic_name = 1, + + /* dynamic attributes the driver supports */ + .get_host_port_id = lpfc_get_host_port_id, + .show_host_port_id = 1, + + .get_host_port_type = lpfc_get_host_port_type, + .show_host_port_type = 1, + + .get_host_port_state = lpfc_get_host_port_state, + .show_host_port_state = 1, + + /* active_fc4s is shown but doesn't change (thus no get function) */ + .show_host_active_fc4s = 1, + + .get_host_speed = lpfc_get_host_speed, + .show_host_speed = 1, + + .get_host_fabric_name = lpfc_get_host_fabric_name, + .show_host_fabric_name = 1, + + /* + * The LPFC driver treats linkdown handling as target loss events + * so there are no sysfs handlers for link_down_tmo. + */ + + .get_fc_host_stats = lpfc_get_stats, + .reset_fc_host_stats = lpfc_reset_stats, + + .dd_fcrport_size = sizeof(struct lpfc_rport_data), + .show_rport_maxframe_size = 1, + .show_rport_supported_classes = 1, + + .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, + .show_rport_dev_loss_tmo = 1, + + .get_starget_port_id = lpfc_get_starget_port_id, + .show_starget_port_id = 1, + + .get_starget_node_name = lpfc_get_starget_node_name, + .show_starget_node_name = 1, + + .get_starget_port_name = lpfc_get_starget_port_name, + .show_starget_port_name = 1, + + .issue_fc_host_lip = lpfc_issue_lip, + .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, + .terminate_rport_io = lpfc_terminate_rport_io, + + .dd_fcvport_size = sizeof(struct lpfc_vport *), + + .vport_disable = lpfc_vport_disable, + + .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, + + .bsg_request = lpfc_bsg_request, + .bsg_timeout = lpfc_bsg_timeout, +}; + +struct fc_function_template lpfc_vport_transport_functions = { + /* fixed attributes the driver supports */ + .show_host_node_name = 1, + .show_host_port_name = 1, + .show_host_supported_classes = 1, + .show_host_supported_fc4s = 1, + .show_host_supported_speeds = 1, + .show_host_maxframe_size = 1, + + .get_host_symbolic_name = lpfc_get_host_symbolic_name, + .show_host_symbolic_name = 1, + + /* dynamic attributes the driver supports */ + .get_host_port_id = lpfc_get_host_port_id, + .show_host_port_id = 1, + + .get_host_port_type = lpfc_get_host_port_type, + .show_host_port_type = 1, + + .get_host_port_state = lpfc_get_host_port_state, + .show_host_port_state = 1, + + /* active_fc4s is shown but doesn't change (thus no get function) */ + .show_host_active_fc4s = 1, + + .get_host_speed = lpfc_get_host_speed, + .show_host_speed = 1, + + .get_host_fabric_name = lpfc_get_host_fabric_name, + .show_host_fabric_name = 1, + + /* + * The LPFC driver treats linkdown handling as target loss events + * so there are no sysfs handlers for link_down_tmo. + */ + + .get_fc_host_stats = lpfc_get_stats, + .reset_fc_host_stats = lpfc_reset_stats, + + .dd_fcrport_size = sizeof(struct lpfc_rport_data), + .show_rport_maxframe_size = 1, + .show_rport_supported_classes = 1, + + .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, + .show_rport_dev_loss_tmo = 1, + + .get_starget_port_id = lpfc_get_starget_port_id, + .show_starget_port_id = 1, + + .get_starget_node_name = lpfc_get_starget_node_name, + .show_starget_node_name = 1, + + .get_starget_port_name = lpfc_get_starget_port_name, + .show_starget_port_name = 1, + + .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, + .terminate_rport_io = lpfc_terminate_rport_io, + + .vport_disable = lpfc_vport_disable, + + .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, +}; + +/** + * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE + * Mode + * @phba: lpfc_hba pointer. + **/ +static void +lpfc_get_hba_function_mode(struct lpfc_hba *phba) +{ + /* If the adapter supports FCoE mode */ + switch (phba->pcidev->device) { + case PCI_DEVICE_ID_SKYHAWK: + case PCI_DEVICE_ID_SKYHAWK_VF: + case PCI_DEVICE_ID_LANCER_FCOE: + case PCI_DEVICE_ID_LANCER_FCOE_VF: + case PCI_DEVICE_ID_ZEPHYR_DCSP: + case PCI_DEVICE_ID_TIGERSHARK: + case PCI_DEVICE_ID_TOMCAT: + phba->hba_flag |= HBA_FCOE_MODE; + break; + default: + /* for others, clear the flag */ + phba->hba_flag &= ~HBA_FCOE_MODE; + } +} + +/** + * lpfc_get_cfgparam - Used during probe_one to init the adapter structure + * @phba: lpfc_hba pointer. + **/ +void +lpfc_get_cfgparam(struct lpfc_hba *phba) +{ + lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); + lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); + lpfc_ns_query_init(phba, lpfc_ns_query); + lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); + lpfc_cr_delay_init(phba, lpfc_cr_delay); + lpfc_cr_count_init(phba, lpfc_cr_count); + lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); + lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); + lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); + lpfc_ack0_init(phba, lpfc_ack0); + lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); + lpfc_topology_init(phba, lpfc_topology); + lpfc_link_speed_init(phba, lpfc_link_speed); + lpfc_poll_tmo_init(phba, lpfc_poll_tmo); + lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); + lpfc_enable_npiv_init(phba, lpfc_enable_npiv); + lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); + lpfc_enable_rrq_init(phba, lpfc_enable_rrq); + lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); + lpfc_fdmi_on_init(phba, lpfc_fdmi_on); + lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); + lpfc_use_msi_init(phba, lpfc_use_msi); + lpfc_nvme_oas_init(phba, lpfc_nvme_oas); + lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); + lpfc_fcp_imax_init(phba, lpfc_fcp_imax); + lpfc_force_rscn_init(phba, lpfc_force_rscn); + lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); + lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); + lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); + lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); + lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); + + lpfc_EnableXLane_init(phba, lpfc_EnableXLane); + /* VMID Inits */ + lpfc_max_vmid_init(phba, lpfc_max_vmid); + lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); + lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); + lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); + if (phba->sli_rev != LPFC_SLI_REV4) + phba->cfg_EnableXLane = 0; + lpfc_XLanePriority_init(phba, lpfc_XLanePriority); + + memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); + memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); + phba->cfg_oas_lun_state = 0; + phba->cfg_oas_lun_status = 0; + phba->cfg_oas_flags = 0; + phba->cfg_oas_priority = 0; + lpfc_enable_bg_init(phba, lpfc_enable_bg); + lpfc_prot_mask_init(phba, lpfc_prot_mask); + lpfc_prot_guard_init(phba, lpfc_prot_guard); + if (phba->sli_rev == LPFC_SLI_REV4) + phba->cfg_poll = 0; + else + phba->cfg_poll = lpfc_poll; + + /* Get the function mode */ + lpfc_get_hba_function_mode(phba); + + /* BlockGuard allowed for FC only. */ + if (phba->cfg_enable_bg && phba->hba_flag & HBA_FCOE_MODE) { + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, + "0581 BlockGuard feature not supported\n"); + /* If set, clear the BlockGuard support param */ + phba->cfg_enable_bg = 0; + } else if (phba->cfg_enable_bg) { + phba->sli3_options |= LPFC_SLI3_BG_ENABLED; + } + + lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); + + lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); + lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); + lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); + + /* Initialize first burst. Target vs Initiator are different. */ + lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); + lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); + lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); + lpfc_hdw_queue_init(phba, lpfc_hdw_queue); + lpfc_irq_chann_init(phba, lpfc_irq_chann); + lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); + lpfc_enable_dpp_init(phba, lpfc_enable_dpp); + lpfc_enable_mi_init(phba, lpfc_enable_mi); + + phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; + phba->cmf_active_mode = LPFC_CFG_OFF; + if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || + lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) + lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ + + if (phba->sli_rev != LPFC_SLI_REV4) { + /* NVME only supported on SLI4 */ + phba->nvmet_support = 0; + phba->cfg_nvmet_mrq = 0; + phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; + phba->cfg_enable_bbcr = 0; + phba->cfg_xri_rebalancing = 0; + } else { + /* We MUST have FCP support */ + if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) + phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; + } + + phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; + + phba->cfg_enable_pbde = 0; + + /* A value of 0 means use the number of CPUs found in the system */ + if (phba->cfg_hdw_queue == 0) + phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; + if (phba->cfg_irq_chann == 0) + phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; + if (phba->cfg_irq_chann > phba->cfg_hdw_queue && + phba->sli_rev == LPFC_SLI_REV4) + phba->cfg_irq_chann = phba->cfg_hdw_queue; + + lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); + lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); + lpfc_aer_support_init(phba, lpfc_aer_support); + lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); + lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); + lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); + lpfc_delay_discovery_init(phba, lpfc_delay_discovery); + lpfc_sli_mode_init(phba, lpfc_sli_mode); + lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); + lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); + lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); + lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); + + return; +} + +/** + * lpfc_nvme_mod_param_dep - Adjust module parameter value based on + * dependencies between protocols and roles. + * @phba: lpfc_hba pointer. + **/ +void +lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) +{ + int logit = 0; + + if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { + phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; + logit = 1; + } + if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { + phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; + logit = 1; + } + if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { + phba->cfg_irq_chann = phba->cfg_hdw_queue; + logit = 1; + } + if (logit) + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "2006 Reducing Queues - CPU limitation: " + "IRQ %d HDWQ %d\n", + phba->cfg_irq_chann, + phba->cfg_hdw_queue); + + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && + phba->nvmet_support) { + phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; + + lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, + "6013 %s x%x fb_size x%x, fb_max x%x\n", + "NVME Target PRLI ACC enable_fb ", + phba->cfg_nvme_enable_fb, + phba->cfg_nvmet_fb_size, + LPFC_NVMET_FB_SZ_MAX); + + if (phba->cfg_nvme_enable_fb == 0) + phba->cfg_nvmet_fb_size = 0; + else { + if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) + phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; + } + + if (!phba->cfg_nvmet_mrq) + phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; + + /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ + if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { + phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; + lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, + "6018 Adjust lpfc_nvmet_mrq to %d\n", + phba->cfg_nvmet_mrq); + } + if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) + phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; + + } else { + /* Not NVME Target mode. Turn off Target parameters. */ + phba->nvmet_support = 0; + phba->cfg_nvmet_mrq = 0; + phba->cfg_nvmet_fb_size = 0; + } +} + +/** + * lpfc_get_vport_cfgparam - Used during port create, init the vport structure + * @vport: lpfc_vport pointer. + **/ +void +lpfc_get_vport_cfgparam(struct lpfc_vport *vport) +{ + lpfc_log_verbose_init(vport, lpfc_log_verbose); + lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); + lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); + lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); + lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); + lpfc_peer_port_login_init(vport, lpfc_peer_port_login); + lpfc_restrict_login_init(vport, lpfc_restrict_login); + lpfc_fcp_class_init(vport, lpfc_fcp_class); + lpfc_use_adisc_init(vport, lpfc_use_adisc); + lpfc_first_burst_size_init(vport, lpfc_first_burst_size); + lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); + lpfc_discovery_threads_init(vport, lpfc_discovery_threads); + lpfc_max_luns_init(vport, lpfc_max_luns); + lpfc_scan_down_init(vport, lpfc_scan_down); + lpfc_enable_da_id_init(vport, lpfc_enable_da_id); + return; +} |