summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/lpfc/lpfc_attr.c
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /drivers/scsi/lpfc/lpfc_attr.c
parentInitial commit. (diff)
downloadlinux-upstream/5.10.209.tar.xz
linux-upstream/5.10.209.zip
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c7534
1 files changed, 7534 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..f0d1ced63
--- /dev/null
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -0,0 +1,7534 @@
+/*******************************************************************
+ * This file is part of the Emulex Linux Device Driver for *
+ * Fibre Channel Host Bus Adapters. *
+ * Copyright (C) 2017-2020 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_DEF_MRQ_POST 512
+#define LPFC_MIN_MRQ_POST 512
+#define LPFC_MAX_MRQ_POST 2048
+
+/*
+ * 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;
+}
+
+/**
+ * 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_NVME_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(&vport->phba->hbalock);
+ rport = lpfc_ndlp_get_nrport(ndlp);
+ if (rport)
+ nrport = rport->remoteport;
+ spin_unlock(&vport->phba->hbalock);
+ 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_err),
+ atomic_read(&lport->xmt_fcp_wqerr));
+ 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);
+ strlcpy(buf + PAGE_SIZE - 1 -
+ strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1),
+ LPFC_NVME_INFO_MORE_STR,
+ strnlen(LPFC_NVME_INFO_MORE_STR, PAGE_SIZE - 1)
+ + 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_mlomgmt_show - Return the Menlo Maintenance sli flag
+ * @dev: class converted to a Scsi_host structure.
+ * @attr: device attribute, not used.
+ * @buf: on return contains the Menlo Maintenance sli flag.
+ *
+ * Returns: size of formatted string.
+ **/
+static ssize_t
+lpfc_mlomgmt_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->sli.sli_flag & LPFC_MENLO_MAINT));
+}
+
+/**
+ * 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_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->sli.sli_flag & LPFC_MENLO_MAINT)
+ len += scnprintf(buf + len, PAGE_SIZE-len,
+ " Menlo Maint Mode\n");
+ else 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)
+ 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 %s %s\n",
+ "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.
+ *
+ * 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, "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);
+}
+
+static inline bool lpfc_rangecheck(uint val, uint min, uint max)
+{
+ return val >= min && val <= max;
+}
+
+/**
+ * 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 %s_enable_bbcr changed from %d to %d\n",
+ LPFC_DRIVER_NAME, phba->cfg_enable_bbcr, val);
+ phba->cfg_enable_bbcr = val;
+ return 0;
+ }
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0451 %s_enable_bbcr cannot set to %d, range is 0, 1\n",
+ LPFC_DRIVER_NAME, 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(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_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 char *lpfc_soft_wwn_key = "C99G71SL8032A";
+#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_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
+ * @dev: class device that is converted into a Scsi_host.
+ * @attr: device attribute, not used.
+ * @buf: containing the string lpfc_soft_wwn_key.
+ * @count: must be size of lpfc_soft_wwn_key.
+ *
+ * Returns:
+ * -EINVAL if the buffer does not contain lpfc_soft_wwn_key
+ * length of buf indicates success
+ **/
+static ssize_t
+lpfc_soft_wwn_enable_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;
+ unsigned int cnt = count;
+ uint8_t vvvl = vport->fc_sparam.cmn.valid_vendor_ver_level;
+ u32 *fawwpn_key = (uint32_t *)&vport->fc_sparam.un.vendorVersion[0];
+
+ /*
+ * We're doing a simple sanity check for soft_wwpn setting.
+ * We require that the user write a specific key to enable
+ * the soft_wwpn attribute to be settable. Once the attribute
+ * is written, the enable key resets. If further updates are
+ * desired, the key must be written again to re-enable the
+ * attribute.
+ *
+ * The "key" is not secret - it is a hardcoded string shown
+ * here. The intent is to protect against the random user or
+ * application that is just writing attributes.
+ */
+ if (vvvl == 1 && cpu_to_be32(*fawwpn_key) == FAPWWN_KEY_VENDOR) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0051 "LPFC_DRIVER_NAME" soft wwpn can not"
+ " be enabled: fawwpn is enabled\n");
+ return -EINVAL;
+ }
+
+ /* count may include a LF at end of string */
+ if (buf[cnt-1] == '\n')
+ cnt--;
+
+ if ((cnt != strlen(lpfc_soft_wwn_key)) ||
+ (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0))
+ return -EINVAL;
+
+ phba->soft_wwn_enable = 1;
+
+ dev_printk(KERN_WARNING, &phba->pcidev->dev,
+ "lpfc%d: soft_wwpn assignment has been enabled.\n",
+ phba->brd_no);
+ dev_printk(KERN_WARNING, &phba->pcidev->dev,
+ " The soft_wwpn feature is not supported by Broadcom.");
+
+ return count;
+}
+static DEVICE_ATTR_WO(lpfc_soft_wwn_enable);
+
+/**
+ * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter
+ * @dev: class device that is converted into a Scsi_host.
+ * @attr: device attribute, not used.
+ * @buf: on return contains the wwpn in hexadecimal.
+ *
+ * Returns: size of formatted string.
+ **/
+static ssize_t
+lpfc_soft_wwpn_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, "0x%llx\n",
+ (unsigned long long)phba->cfg_soft_wwpn);
+}
+
+/**
+ * lpfc_soft_wwpn_store - Set the ww port name of the adapter
+ * @dev class device that is converted into a Scsi_host.
+ * @attr: device attribute, not used.
+ * @buf: contains the wwpn in hexadecimal.
+ * @count: number of wwpn bytes in buf
+ *
+ * Returns:
+ * -EACCES hba reset not enabled, adapter over temp
+ * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid
+ * -EIO error taking adapter offline or online
+ * value of count on success
+ **/
+static ssize_t
+lpfc_soft_wwpn_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;
+ int stat1 = 0, stat2 = 0;
+ unsigned int cnt = count;
+ u8 wwpn[WWN_SZ];
+ int rc;
+
+ if (!phba->cfg_enable_hba_reset)
+ return -EACCES;
+ spin_lock_irq(&phba->hbalock);
+ if (phba->over_temp_state == HBA_OVER_TEMP) {
+ spin_unlock_irq(&phba->hbalock);
+ return -EACCES;
+ }
+ spin_unlock_irq(&phba->hbalock);
+ /* count may include a LF at end of string */
+ if (buf[cnt-1] == '\n')
+ cnt--;
+
+ if (!phba->soft_wwn_enable)
+ return -EINVAL;
+
+ /* lock setting wwpn, wwnn down */
+ phba->soft_wwn_enable = 0;
+
+ rc = lpfc_wwn_set(buf, cnt, wwpn);
+ if (rc) {
+ /* not able to set wwpn, unlock it */
+ phba->soft_wwn_enable = 1;
+ return rc;
+ }
+
+ phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
+ fc_host_port_name(shost) = phba->cfg_soft_wwpn;
+ if (phba->cfg_soft_wwnn)
+ fc_host_node_name(shost) = phba->cfg_soft_wwnn;
+
+ dev_printk(KERN_NOTICE, &phba->pcidev->dev,
+ "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
+
+ stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
+ if (stat1)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0463 lpfc_soft_wwpn attribute set failed to "
+ "reinit adapter - %d\n", stat1);
+ init_completion(&online_compl);
+ rc = lpfc_workq_post_event(phba, &stat2, &online_compl,
+ LPFC_EVT_ONLINE);
+ if (rc == 0)
+ return -ENOMEM;
+
+ wait_for_completion(&online_compl);
+ if (stat2)
+ lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+ "0464 lpfc_soft_wwpn attribute set failed to "
+ "reinit adapter - %d\n", stat2);
+ return (stat1 || stat2) ? -EIO : count;
+}
+static DEVICE_ATTR_RW(lpfc_soft_wwpn);
+
+/**
+ * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter
+ * @dev: class device that is converted into a Scsi_host.
+ * @attr: device attribute, not used.
+ * @buf: on return contains the wwnn in hexadecimal.
+ *
+ * Returns: size of formatted string.
+ **/
+static ssize_t
+lpfc_soft_wwnn_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",
+ (unsigned long long)phba->cfg_soft_wwnn);
+}
+
+/**
+ * lpfc_soft_wwnn_store - sets the ww node name of the adapter
+ * @cdev: class device that is converted into a Scsi_host.
+ * @buf: contains the ww node name in hexadecimal.
+ * @count: number of wwnn bytes in buf.
+ *
+ * Returns:
+ * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid
+ * value of count on success
+ **/
+static ssize_t
+lpfc_soft_wwnn_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;
+ u8 wwnn[WWN_SZ];
+ int rc;
+
+ /* count may include a LF at end of string */
+ if (buf[cnt-1] == '\n')
+ cnt--;
+
+ if (!phba->soft_wwn_enable)
+ return -EINVAL;
+
+ rc = lpfc_wwn_set(buf, cnt, wwnn);
+ if (rc) {
+ /* Allow wwnn to be set many times, as long as the enable
+ * is set. However, once the wwpn is set, everything locks.
+ */
+ return rc;
+ }
+
+ phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
+
+ dev_printk(KERN_NOTICE, &phba->pcidev->dev,
+ "lpfc%d: soft_wwnn set. Value will take effect upon "
+ "setting of the soft_wwpn\n", phba->brd_no);
+
+ return count;
+}
+static DEVICE_ATTR_RW(lpfc_soft_wwnn);
+
+/**
+ * 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.
+ * @ndlp: pointer to fcp target node.
+ * @lun: the fc lun for setting oas state.
+ * @oas_state: the oas state to be set to the lun.
+ *
+ * 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
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * 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, 0, 0, 3,
+ "SLI mode selector:"
+ " 0 - auto (SLI-3 if supported),"
+ " 2 - select SLI-2 even on SLI-3 capable HBAs,"
+ " 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_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 (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ if (ndlp->rport)
+ ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
+#if (IS_ENABLED(CONFIG_NVME_FC))
+ spin_lock(&vport->phba->hbalock);
+ rport = lpfc_ndlp_get_nrport(ndlp);
+ if (rport)
+ remoteport = rport->remoteport;
+ spin_unlock(&vport->phba->hbalock);
+ 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_store: Sets an attribute value.
+ * @phba: pointer the the adapter structure.
+ * @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_set - Set the adapters topology field
+ * @phba: lpfc_hba pointer.
+ * @val: topology value.
+ *
+ * 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;
+
+ 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
+ * - G7/G6 with no private loop support
+ */
+
+ if ((phba->hba_flag & HBA_PERSISTENT_TOPO ||
+ (!phba->sli4_hba.pc_sli4_params.pls &&
+ (phba->pcidev->device == PCI_DEVICE_ID_LANCER_G6_FC ||
+ phba->pcidev->device == PCI_DEVICE_ID_LANCER_G7_FC))) &&
+ 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_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
+ * @dev: Pointer to class device.
+ * @buf: Data buffer.
+ * @count: Size of the data buffer.
+ *
+ * This function get called when a user write to the lpfc_stat_data_ctrl
+ * sysfs file. This function parse the command written to the sysfs file
+ * and take appropriate action. These commands are used for controlling
+ * driver statistical data collection.
+ * Following are the command this function handles.
+ *
+ * setbucket <bucket_type> <base> <step>
+ * = Set the latency buckets.
+ * destroybucket = destroy all the buckets.
+ * start = start data collection
+ * stop = stop data collection
+ * reset = reset the collected data
+ **/
+static ssize_t
+lpfc_stat_data_ctrl_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;
+#define LPFC_MAX_DATA_CTRL_LEN 1024
+ static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
+ unsigned long i;
+ char *str_ptr, *token;
+ struct lpfc_vport **vports;
+ struct Scsi_Host *v_shost;
+ char *bucket_type_str, *base_str, *step_str;
+ unsigned long base, step, bucket_type;
+
+ if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
+ if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1))
+ return -EINVAL;
+
+ strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
+ str_ptr = &bucket_data[0];
+ /* Ignore this token - this is command token */
+ token = strsep(&str_ptr, "\t ");
+ if (!token)
+ return -EINVAL;
+
+ bucket_type_str = strsep(&str_ptr, "\t ");
+ if (!bucket_type_str)
+ return -EINVAL;
+
+ if (!strncmp(bucket_type_str, "linear", strlen("linear")))
+ bucket_type = LPFC_LINEAR_BUCKET;
+ else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
+ bucket_type = LPFC_POWER2_BUCKET;
+ else
+ return -EINVAL;
+
+ base_str = strsep(&str_ptr, "\t ");
+ if (!base_str)
+ return -EINVAL;
+ base = simple_strtoul(base_str, NULL, 0);
+
+ step_str = strsep(&str_ptr, "\t ");
+ if (!step_str)
+ return -EINVAL;
+ step = simple_strtoul(step_str, NULL, 0);
+ if (!step)
+ return -EINVAL;
+
+ /* Block the data collection for every vport */
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports == NULL)
+ return -ENOMEM;
+
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ v_shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(v_shost->host_lock);
+ /* Block and reset data collection */
+ vports[i]->stat_data_blocked = 1;
+ if (vports[i]->stat_data_enabled)
+ lpfc_vport_reset_stat_data(vports[i]);
+ spin_unlock_irq(v_shost->host_lock);
+ }
+
+ /* Set the bucket attributes */
+ phba->bucket_type = bucket_type;
+ phba->bucket_base = base;
+ phba->bucket_step = step;
+
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ v_shost = lpfc_shost_from_vport(vports[i]);
+
+ /* Unblock data collection */
+ spin_lock_irq(v_shost->host_lock);
+ vports[i]->stat_data_blocked = 0;
+ spin_unlock_irq(v_shost->host_lock);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+ return strlen(buf);
+ }
+
+ if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
+ vports = lpfc_create_vport_work_array(phba);
+ if (vports == NULL)
+ return -ENOMEM;
+
+ for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) {
+ v_shost = lpfc_shost_from_vport(vports[i]);
+ spin_lock_irq(shost->host_lock);
+ vports[i]->stat_data_blocked = 1;
+ lpfc_free_bucket(vport);
+ vport->stat_data_enabled = 0;
+ vports[i]->stat_data_blocked = 0;
+ spin_unlock_irq(shost->host_lock);
+ }
+ lpfc_destroy_vport_work_array(phba, vports);
+ phba->bucket_type = LPFC_NO_BUCKET;
+ phba->bucket_base = 0;
+ phba->bucket_step = 0;
+ return strlen(buf);
+ }
+
+ if (!strncmp(buf, "start", strlen("start"))) {
+ /* If no buckets configured return error */
+ if (phba->bucket_type == LPFC_NO_BUCKET)
+ return -EINVAL;
+ spin_lock_irq(shost->host_lock);
+ if (vport->stat_data_enabled) {
+ spin_unlock_irq(shost->host_lock);
+ return strlen(buf);
+ }
+ lpfc_alloc_bucket(vport);
+ vport->stat_data_enabled = 1;
+ spin_unlock_irq(shost->host_lock);
+ return strlen(buf);
+ }
+
+ if (!strncmp(buf, "stop", strlen("stop"))) {
+ spin_lock_irq(shost->host_lock);
+ if (vport->stat_data_enabled == 0) {
+ spin_unlock_irq(shost->host_lock);
+ return strlen(buf);
+ }
+ lpfc_free_bucket(vport);
+ vport->stat_data_enabled = 0;
+ spin_unlock_irq(shost->host_lock);
+ return strlen(buf);
+ }
+
+ if (!strncmp(buf, "reset", strlen("reset"))) {
+ if ((phba->bucket_type == LPFC_NO_BUCKET)
+ || !vport->stat_data_enabled)
+ return strlen(buf);
+ spin_lock_irq(shost->host_lock);
+ vport->stat_data_blocked = 1;
+ lpfc_vport_reset_stat_data(vport);
+ vport->stat_data_blocked = 0;
+ spin_unlock_irq(shost->host_lock);
+ return strlen(buf);
+ }
+ return -EINVAL;
+}
+
+
+/**
+ * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file
+ * @dev: Pointer to class device object.
+ * @buf: Data buffer.
+ *
+ * This function is the read call back function for
+ * lpfc_stat_data_ctrl sysfs file. This function report the
+ * current statistical data collection state.
+ **/
+static ssize_t
+lpfc_stat_data_ctrl_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 index = 0;
+ int i;
+ char *bucket_type;
+ unsigned long bucket_value;
+
+ switch (phba->bucket_type) {
+ case LPFC_LINEAR_BUCKET:
+ bucket_type = "linear";
+ break;
+ case LPFC_POWER2_BUCKET:
+ bucket_type = "power2";
+ break;
+ default:
+ bucket_type = "No Bucket";
+ break;
+ }
+
+ sprintf(&buf[index], "Statistical Data enabled :%d, "
+ "blocked :%d, Bucket type :%s, Bucket base :%d,"
+ " Bucket step :%d\nLatency Ranges :",
+ vport->stat_data_enabled, vport->stat_data_blocked,
+ bucket_type, phba->bucket_base, phba->bucket_step);
+ index = strlen(buf);
+ if (phba->bucket_type != LPFC_NO_BUCKET) {
+ for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
+ if (phba->bucket_type == LPFC_LINEAR_BUCKET)
+ bucket_value = phba->bucket_base +
+ phba->bucket_step * i;
+ else
+ bucket_value = phba->bucket_base +
+ (1 << i) * phba->bucket_step;
+
+ if (index + 10 > PAGE_SIZE)
+ break;
+ sprintf(&buf[index], "%08ld ", bucket_value);
+ index = strlen(buf);
+ }
+ }
+ sprintf(&buf[index], "\n");
+ return strlen(buf);
+}
+
+/*
+ * Sysfs attribute to control the statistical data collection.
+ */
+static DEVICE_ATTR_RW(lpfc_stat_data_ctrl);
+
+/*
+ * lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
+ */
+
+/*
+ * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
+ * for each target.
+ */
+#define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
+#define MAX_STAT_DATA_SIZE_PER_TARGET \
+ STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
+
+
+/**
+ * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute
+ * @filp: sysfs file
+ * @kobj: Pointer to the kernel object
+ * @bin_attr: Attribute object
+ * @buff: Buffer pointer
+ * @off: File offset
+ * @count: Buffer size
+ *
+ * This function is the read call back function for lpfc_drvr_stat_data
+ * sysfs file. This function export the statistical data to user
+ * applications.
+ **/
+static ssize_t
+sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ 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;
+ int i = 0, index = 0;
+ unsigned long nport_index;
+ struct lpfc_nodelist *ndlp = NULL;
+ nport_index = (unsigned long)off /
+ MAX_STAT_DATA_SIZE_PER_TARGET;
+
+ if (!vport->stat_data_enabled || vport->stat_data_blocked
+ || (phba->bucket_type == LPFC_NO_BUCKET))
+ return 0;
+
+ spin_lock_irq(shost->host_lock);
+ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
+ if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
+ continue;
+
+ if (nport_index > 0) {
+ nport_index--;
+ continue;
+ }
+
+ if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
+ > count)
+ break;
+
+ if (!ndlp->lat_data)
+ continue;
+
+ /* Print the WWN */
+ sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
+ ndlp->nlp_portname.u.wwn[0],
+ ndlp->nlp_portname.u.wwn[1],
+ ndlp->nlp_portname.u.wwn[2],
+ ndlp->nlp_portname.u.wwn[3],
+ ndlp->nlp_portname.u.wwn[4],
+ ndlp->nlp_portname.u.wwn[5],
+ ndlp->nlp_portname.u.wwn[6],
+ ndlp->nlp_portname.u.wwn[7]);
+
+ index = strlen(buf);
+
+ for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
+ sprintf(&buf[index], "%010u,",
+ ndlp->lat_data[i].cmd_count);
+ index = strlen(buf);
+ }
+ sprintf(&buf[index], "\n");
+ index = strlen(buf);
+ }
+ spin_unlock_irq(shost->host_lock);
+ return index;
+}
+
+static struct bin_attribute sysfs_drvr_stat_data_attr = {
+ .attr = {
+ .name = "lpfc_drvr_stat_data",
+ .mode = S_IRUSR,
+ },
+ .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
+ .read = sysfs_drvr_stat_data_read,
+ .write = NULL,
+};
+
+/*
+# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
+# connection.
+# Value range is [0,16]. Default value is 0.
+*/
+/**
+ * lpfc_link_speed_set - 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 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_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_DRIVER_NAME"_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_state_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 0.
+*/
+LPFC_VPORT_ATTR_RW(use_adisc, 0, 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 (!NLP_CHK_NODE_ACT(ndlp))
+ continue;
+ 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)
+ 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;
+ }
+ phba->cfg_irq_chann = val;
+ }
+
+ 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: i
+# - 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: i
+# - 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_DRIVER_NAME"_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");
+
+/*
+ * 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");
+
+struct device_attribute *lpfc_hba_attrs[] = {
+ &dev_attr_nvme_info,
+ &dev_attr_scsi_stat,
+ &dev_attr_bg_info,
+ &dev_attr_bg_guard_err,
+ &dev_attr_bg_apptag_err,
+ &dev_attr_bg_reftag_err,
+ &dev_attr_info,
+ &dev_attr_serialnum,
+ &dev_attr_modeldesc,
+ &dev_attr_modelname,
+ &dev_attr_programtype,
+ &dev_attr_portnum,
+ &dev_attr_fwrev,
+ &dev_attr_hdw,
+ &dev_attr_option_rom_version,
+ &dev_attr_link_state,
+ &dev_attr_num_discovered_ports,
+ &dev_attr_menlo_mgmt_mode,
+ &dev_attr_lpfc_drvr_version,
+ &dev_attr_lpfc_enable_fip,
+ &dev_attr_lpfc_temp_sensor,
+ &dev_attr_lpfc_log_verbose,
+ &dev_attr_lpfc_lun_queue_depth,
+ &dev_attr_lpfc_tgt_queue_depth,
+ &dev_attr_lpfc_hba_queue_depth,
+ &dev_attr_lpfc_peer_port_login,
+ &dev_attr_lpfc_nodev_tmo,
+ &dev_attr_lpfc_devloss_tmo,
+ &dev_attr_lpfc_enable_fc4_type,
+ &dev_attr_lpfc_fcp_class,
+ &dev_attr_lpfc_use_adisc,
+ &dev_attr_lpfc_first_burst_size,
+ &dev_attr_lpfc_ack0,
+ &dev_attr_lpfc_xri_rebalancing,
+ &dev_attr_lpfc_topology,
+ &dev_attr_lpfc_scan_down,
+ &dev_attr_lpfc_link_speed,
+ &dev_attr_lpfc_fcp_io_sched,
+ &dev_attr_lpfc_ns_query,
+ &dev_attr_lpfc_fcp2_no_tgt_reset,
+ &dev_attr_lpfc_cr_delay,
+ &dev_attr_lpfc_cr_count,
+ &dev_attr_lpfc_multi_ring_support,
+ &dev_attr_lpfc_multi_ring_rctl,
+ &dev_attr_lpfc_multi_ring_type,
+ &dev_attr_lpfc_fdmi_on,
+ &dev_attr_lpfc_enable_SmartSAN,
+ &dev_attr_lpfc_max_luns,
+ &dev_attr_lpfc_enable_npiv,
+ &dev_attr_lpfc_fcf_failover_policy,
+ &dev_attr_lpfc_enable_rrq,
+ &dev_attr_nport_evt_cnt,
+ &dev_attr_board_mode,
+ &dev_attr_max_vpi,
+ &dev_attr_used_vpi,
+ &dev_attr_max_rpi,
+ &dev_attr_used_rpi,
+ &dev_attr_max_xri,
+ &dev_attr_used_xri,
+ &dev_attr_npiv_info,
+ &dev_attr_issue_reset,
+ &dev_attr_lpfc_poll,
+ &dev_attr_lpfc_poll_tmo,
+ &dev_attr_lpfc_task_mgmt_tmo,
+ &dev_attr_lpfc_use_msi,
+ &dev_attr_lpfc_nvme_oas,
+ &dev_attr_lpfc_nvme_embed_cmd,
+ &dev_attr_lpfc_fcp_imax,
+ &dev_attr_lpfc_force_rscn,
+ &dev_attr_lpfc_cq_poll_threshold,
+ &dev_attr_lpfc_cq_max_proc_limit,
+ &dev_attr_lpfc_fcp_cpu_map,
+ &dev_attr_lpfc_fcp_mq_threshold,
+ &dev_attr_lpfc_hdw_queue,
+ &dev_attr_lpfc_irq_chann,
+ &dev_attr_lpfc_suppress_rsp,
+ &dev_attr_lpfc_nvmet_mrq,
+ &dev_attr_lpfc_nvmet_mrq_post,
+ &dev_attr_lpfc_nvme_enable_fb,
+ &dev_attr_lpfc_nvmet_fb_size,
+ &dev_attr_lpfc_enable_bg,
+ &dev_attr_lpfc_soft_wwnn,
+ &dev_attr_lpfc_soft_wwpn,
+ &dev_attr_lpfc_soft_wwn_enable,
+ &dev_attr_lpfc_enable_hba_reset,
+ &dev_attr_lpfc_enable_hba_heartbeat,
+ &dev_attr_lpfc_EnableXLane,
+ &dev_attr_lpfc_XLanePriority,
+ &dev_attr_lpfc_xlane_lun,
+ &dev_attr_lpfc_xlane_tgt,
+ &dev_attr_lpfc_xlane_vpt,
+ &dev_attr_lpfc_xlane_lun_state,
+ &dev_attr_lpfc_xlane_lun_status,
+ &dev_attr_lpfc_xlane_priority,
+ &dev_attr_lpfc_sg_seg_cnt,
+ &dev_attr_lpfc_max_scsicmpl_time,
+ &dev_attr_lpfc_stat_data_ctrl,
+ &dev_attr_lpfc_aer_support,
+ &dev_attr_lpfc_aer_state_cleanup,
+ &dev_attr_lpfc_sriov_nr_virtfn,
+ &dev_attr_lpfc_req_fw_upgrade,
+ &dev_attr_lpfc_suppress_link_up,
+ &dev_attr_iocb_hw,
+ &dev_attr_pls,
+ &dev_attr_pt,
+ &dev_attr_txq_hw,
+ &dev_attr_txcmplq_hw,
+ &dev_attr_lpfc_sriov_hw_max_virtfn,
+ &dev_attr_protocol,
+ &dev_attr_lpfc_xlane_supported,
+ &dev_attr_lpfc_enable_mds_diags,
+ &dev_attr_lpfc_ras_fwlog_buffsize,
+ &dev_attr_lpfc_ras_fwlog_level,
+ &dev_attr_lpfc_ras_fwlog_func,
+ &dev_attr_lpfc_enable_bbcr,
+ &dev_attr_lpfc_enable_dpp,
+ NULL,
+};
+
+struct device_attribute *lpfc_vport_attrs[] = {
+ &dev_attr_info,
+ &dev_attr_link_state,
+ &dev_attr_num_discovered_ports,
+ &dev_attr_lpfc_drvr_version,
+ &dev_attr_lpfc_log_verbose,
+ &dev_attr_lpfc_lun_queue_depth,
+ &dev_attr_lpfc_tgt_queue_depth,
+ &dev_attr_lpfc_nodev_tmo,
+ &dev_attr_lpfc_devloss_tmo,
+ &dev_attr_lpfc_hba_queue_depth,
+ &dev_attr_lpfc_peer_port_login,
+ &dev_attr_lpfc_restrict_login,
+ &dev_attr_lpfc_fcp_class,
+ &dev_attr_lpfc_use_adisc,
+ &dev_attr_lpfc_first_burst_size,
+ &dev_attr_lpfc_max_luns,
+ &dev_attr_nport_evt_cnt,
+ &dev_attr_npiv_info,
+ &dev_attr_lpfc_enable_da_id,
+ &dev_attr_lpfc_max_scsicmpl_time,
+ &dev_attr_lpfc_stat_data_ctrl,
+ &dev_attr_lpfc_static_vport,
+ 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;
+
+ error = sysfs_create_bin_file(&shost->shost_dev.kobj,
+ &sysfs_drvr_stat_data_attr);
+
+ /* Virtual ports do not need ctrl_reg and mbox */
+ if (error || vport->port_type == LPFC_NPIV_PORT)
+ goto out;
+
+ error = sysfs_create_bin_file(&shost->shost_dev.kobj,
+ &sysfs_ctlreg_attr);
+ if (error)
+ goto out_remove_stat_attr;
+
+ 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_remove_stat_attr:
+ sysfs_remove_bin_file(&shost->shost_dev.kobj,
+ &sysfs_drvr_stat_data_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);
+ sysfs_remove_bin_file(&shost->shost_dev.kobj,
+ &sysfs_drvr_stat_data_attr);
+ /* 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;
+ 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;
+ /*
+ * The MBX_READ_STATUS returns tx_k_bytes which has to
+ * converted to words
+ */
+ hs->tx_words = (uint64_t)
+ ((uint64_t)pmb->un.varRdStatus.xmitByteCnt
+ * (uint64_t)256);
+ hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt;
+ 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->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);
+
+ 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 (NLP_CHK_NODE_ACT(ndlp) &&
+ 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 || !NLP_CHK_NODE_ACT(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.
+ *
+ * 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_HORNET:
+ 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_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);
+ 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);
+
+ 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->cfg_irq_chann = phba->cfg_hdw_queue;
+
+ phba->cfg_soft_wwnn = 0L;
+ phba->cfg_soft_wwpn = 0L;
+ 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;
+}