| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2017-2018 Broadcom. All Rights Reserved. The term * |
| * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * |
| * Copyright (C) 2004-2016 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.broadcom.com * |
| * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| * * |
| * This program is free software; you can redistribute it and/or * |
| * modify it under the terms of version 2 of the GNU General * |
| * Public License as published by the Free Software Foundation. * |
| * This program is distributed in the hope that it will be useful. * |
| * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| * more details, a copy of which can be found in the file COPYING * |
| * included with this package. * |
| *******************************************************************/ |
| |
| #include <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 <linux/nvme-fc-driver.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_nvmet.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 |
| |
| #define LPFC_MAX_NVME_INFO_TMP_LEN 100 |
| #define LPFC_NVME_INFO_MORE_STR "\nCould be more info...\n" |
| |
| /* |
| * Write key size should be multiple of 4. If write key is changed |
| * make sure that library write key is also changed. |
| */ |
| #define LPFC_REG_WRITE_KEY_SIZE 4 |
| #define LPFC_REG_WRITE_KEY "EMLX" |
| |
| /** |
| * 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_nvme_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 (!(phba->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 NVME %d SCSI %d ELS %d\n", |
| phba->brd_no, |
| phba->sli4_hba.max_cfg_param.max_xri, |
| phba->sli4_hba.nvme_xri_max, |
| phba->sli4_hba.scsi_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_nvme_io_channel; i++) { |
| cstat = &lport->cstat[i]; |
| tot = atomic_read(&cstat->fc4NvmeIoCmpls); |
| totin += tot; |
| data1 = atomic_read(&cstat->fc4NvmeInputRequests); |
| data2 = atomic_read(&cstat->fc4NvmeOutputRequests); |
| data3 = atomic_read(&cstat->fc4NvmeControlRequests); |
| 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_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\n", hdw); |
| } |
| |
| /** |
| * 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"); |
| } |
| } |
| |
| 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; |
| |
| 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; |
| |
| /* 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: |
| 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_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); |
| lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, |
| &portstat_reg.word0); |
| |
| /* 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); |
| lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, |
| &portstat_reg.word0); |
| 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; |
| |
| /* Disable SR-IOV virtual functions if enabled */ |
| if (phba->cfg_sriov_nr_virtfn) { |
| pci_disable_sriov(pdev); |
| phba->cfg_sriov_nr_virtfn = 0; |
| } |
| |
| if (opcode == LPFC_FW_DUMP) |
| phba->hba_flag |= HBA_FW_DUMP_OP; |
| |
| status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); |
| |
| if (status != 0) { |
| phba->hba_flag &= ~HBA_FW_DUMP_OP; |
| 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); |
| return rc; |
| } |
| |
| /* keep the original port state */ |
| if (before_fc_flag & FC_OFFLINE_MODE) |
| goto out; |
| |
| 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) { |
| 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); |
| } |
| |
| /** |
| * 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 |
| 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->context1 = 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_fips_level_show - Return the current FIPS level for 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_fips_level_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->fips_level); |
| } |
| |
| /** |
| * lpfc_fips_rev_show - Return the FIPS Spec revision for 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_fips_rev_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->fips_spec_rev); |
| } |
| |
| /** |
| * lpfc_dss_show - Return the current state of dss and the configured state |
| * @dev: class converted to a Scsi_host structure. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the formatted text. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_dss_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 - %sOperational\n", |
| (phba->cfg_enable_dss) ? "Enabled" : "Disabled", |
| (phba->sli3_options & LPFC_SLI3_DSS_ENABLED) ? |
| "" : "Not "); |
| } |
| |
| /** |
| * 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(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_fips_level); |
| static DEVICE_ATTR_RO(lpfc_fips_rev); |
| static DEVICE_ATTR_RO(lpfc_dss); |
| 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"); |
| /* |
| # 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_ATTR_R(iocb_cnt, 2, 1, 5, |
| "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs"); |
| |
| /* |
| # 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 (remoteport) |
| nvme_fc_set_remoteport_devloss(rport->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 1 |
| */ |
| LPFC_ATTR_R(enable_fc4_type, LPFC_ENABLE_FCP, |
| LPFC_ENABLE_FCP, LPFC_ENABLE_BOTH, |
| "Enable FC4 Protocol support - FCP / NVME"); |
| |
| /* |
| * lpfc_xri_split: Defines the division of XRI resources between SCSI and NVME |
| * This parameter is only used if: |
| * lpfc_enable_fc4_type is 3 - register both FCP and NVME and |
| * port is not configured for NVMET. |
| * |
| * ELS/CT always get 10% of XRIs, up to a maximum of 250 |
| * The remaining XRIs get split up based on lpfc_xri_split per port: |
| * |
| * Supported Values are in percentages |
| * the xri_split value is the percentage the SCSI port will get. The remaining |
| * percentage will go to NVME. |
| */ |
| LPFC_ATTR_R(xri_split, 50, 10, 90, |
| "Percentage of FCP XRI resources versus 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. Value range is [1,512]. Default value is 30. |
| # If this parameter value is greater than 1/8th the maximum number of exchanges |
| # supported by the HBA port, then the lun queue depth will be reduced to |
| # 1/8th the maximum number of exchanges. |
| */ |
| LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 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; |
| } |
| if ((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_cleanup_aer_uncorrect_error_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_cleanup_aer_uncorrect_error_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 = -EINVAL; |
| |
| /* 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_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; |
| 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_fcp_imax = (uint32_t)val; |
| phba->initial_imax = phba->cfg_fcp_imax; |
| |
| for (i = 0; i < phba->io_channel_irqs; i += LPFC_MAX_EQ_DELAY_EQID_CNT) |
| lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, |
| val); |
| |
| 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_auto_imax: Controls Auto-interrupt coalescing values support. |
| * 0 No auto_imax support |
| * 1 auto imax on |
| * Auto imax will change the value of fcp_imax on a per EQ basis, using |
| * the EQ Delay Multiplier, depending on the activity for that EQ. |
| * Value range [0,1]. Default value is 1. |
| */ |
| LPFC_ATTR_RW(auto_imax, 1, 0, 1, "Enable Auto imax"); |
| |
| /** |
| * 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 online CPUs\n", |
| phba->cfg_fcp_cpu_map, |
| phba->sli4_hba.num_online_cpu); |
| break; |
| case 2: |
| len += scnprintf(buf + len, PAGE_SIZE-len, |
| "fcp_cpu_map: Driver centric mapping (%d): " |
| "%d online CPUs\n", |
| phba->cfg_fcp_cpu_map, |
| phba->sli4_hba.num_online_cpu); |
| break; |
| } |
| |
| while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_present_cpu) { |
| cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; |
| |
| /* margin should fit in this and the truncated message */ |
| if (cpup->irq == LPFC_VECTOR_MAP_EMPTY) |
| len += scnprintf(buf + len, PAGE_SIZE-len, |
| "CPU %02d io_chan %02d " |
| "physid %d coreid %d\n", |
| phba->sli4_hba.curr_disp_cpu, |
| cpup->channel_id, cpup->phys_id, |
| cpup->core_id); |
| else |
| len += scnprintf(buf + len, PAGE_SIZE-len, |
| "CPU %02d io_chan %02d " |
| "physid %d coreid %d IRQ %d\n", |
| phba->sli4_hba.curr_disp_cpu, |
| cpup->channel_id, cpup->phys_id, |
| cpup->core_id, cpup->irq); |
| |
| 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_present_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_present_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) |
| { |
| int status = -EINVAL; |
| return status; |
| } |
| |
| /* |
| # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors |
| # for the HBA. |
| # |
| # Value range is [0 to 2]. Default value is LPFC_DRIVER_CPU_MAP (2). |
| # 0 - Do not affinitze IRQ vectors |
| # 1 - Affintize HBA vectors with respect to each HBA |
| # (start with CPU0 for each HBA) |
| # 2 - Affintize HBA vectors with respect to the entire driver |
| # (round robin thru all CPUs across all HBAs) |
| */ |
| static int lpfc_fcp_cpu_map = LPFC_DRIVER_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_DRIVER_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. For the target |
| * function (T), enabling this parameter qualifies the lpfc_nvmet_fb_size |
| * driver parameter as the target function's first burst size returned to the |
| * initiator in the target's NVME PRLI response. Parameter supported on physical |
| * port only - no NPIV support. |
| * Value range is [0,1]. Default value is 0 (disabled). |
| */ |
| LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, |
| "Enable First Burst feature on I and T functions."); |
| |
| /* |
| # 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_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 ina round robin fashion. |
| * For [1], FCP commands are issued to a Work Queue associated with the |
| * current CPU. |
| * |
| * LPFC_FCP_SCHED_ROUND_ROBIN == 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_ROUND_ROBIN, |
| LPFC_FCP_SCHED_ROUND_ROBIN, |
| LPFC_FCP_SCHED_BY_CPU, |
| "Determine scheduling algorithm for " |
| "issuing commands [0] - Round Robin, [1] - Current CPU"); |
| |
| /* |
| # 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_io_channel: Set the number of FCP IO channels the driver |
| * will advertise it supports to the SCSI layer. This also will map to |
| * the number of WQs the driver will create. |
| * |
| * 0 = Configure the number of io channels to the number of active CPUs. |
| * 1,32 = Manually specify how many io channels to use. |
| * |
| * Value range is [0,32]. Default value is 4. |
| */ |
| LPFC_ATTR_R(fcp_io_channel, |
| LPFC_FCP_IO_CHAN_DEF, |
| LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, |
| "Set the number of FCP I/O channels"); |
| |
| /* |
| * lpfc_nvme_io_channel: Set the number of IO hardware queues the driver |
| * will advertise it supports to the NVME layer. This also will map to |
| * the number of WQs the driver will create. |
| * |
| * This module parameter is valid when lpfc_enable_fc4_type is set |
| * to support NVME. |
| * |
| * 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 WQ. |
| * |
| * 0 = Configure the number of io channels to the number of active CPUs. |
| * 1,32 = Manually specify how many io channels to use. |
| * |
| * Value range is [0,32]. Default value is 0. |
| */ |
| LPFC_ATTR_R(nvme_io_channel, |
| LPFC_NVME_IO_CHAN_DEF, |
| LPFC_HBA_IO_CHAN_MIN, LPFC_HBA_IO_CHAN_MAX, |
| "Set the number of NVME I/O channels"); |
| |
| /* |
| # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. |
| # 0 = HBA resets disabled |
| # 1 = HBA resets enabled (default) |
| # Value range is [0,1]. Default value is 1. |
| */ |
| LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "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_fcp_look_ahead: Look ahead for completions in FCP start routine |
| # 0 = disabled (default) |
| # 1 = enabled |
| # Value range is [0,1]. Default value is 0. |
| # |
| # This feature in under investigation and may be supported in the future. |
| */ |
| unsigned int lpfc_fcp_look_ahead = LPFC_LOOK_AHEAD_OFF; |
| |
| /* |
| # 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 layer |
| * will be allowed to request I/Os of 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. |
| */ |
| LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_MIN_SG_SEG_CNT, |
| LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count"); |
| |
| /* |
| * 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_R(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); |
| |
| /* |
| * 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_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_xri_split, |
| &dev_attr_lpfc_fcp_class, |
| &dev_attr_lpfc_use_adisc, |
| &dev_attr_lpfc_first_burst_size, |
| &dev_attr_lpfc_ack0, |
| &dev_attr_lpfc_topology, |
| &dev_attr_lpfc_scan_down, |
| &dev_attr_lpfc_link_speed, |
| &dev_attr_lpfc_fcp_io_sched, |
| &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_auto_imax, |
| &dev_attr_lpfc_fcp_imax, |
| &dev_attr_lpfc_fcp_cpu_map, |
| &dev_attr_lpfc_fcp_io_channel, |
| &dev_attr_lpfc_suppress_rsp, |
| &dev_attr_lpfc_nvme_io_channel, |
| &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_lpfc_iocb_cnt, |
| &dev_attr_iocb_hw, |
| &dev_attr_txq_hw, |
| &dev_attr_txcmplq_hw, |
| &dev_attr_lpfc_fips_level, |
| &dev_attr_lpfc_fips_rev, |
| &dev_attr_lpfc_dss, |
| &dev_attr_lpfc_sriov_hw_max_virtfn, |
| &dev_attr_protocol, |
| &dev_attr_lpfc_xlane_supported, |
| &dev_attr_lpfc_enable_mds_diags, |
| &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, |
| &dev_attr_lpfc_fips_level, |
| &dev_attr_lpfc_fips_rev, |
| 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; |
| 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_10GBPS: |
| fc_host_speed(shost) = FC_PORTSPEED_10GBIT; |
| 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->context1 = NULL; |
| pmboxq->vport = vport; |
| |
| if (vport->fc_flag & FC_OFFLINE_MODE) |
| rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| 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->context1 = NULL; |
| pmboxq->vport = vport; |
| |
| if (vport->fc_flag & FC_OFFLINE_MODE) |
| rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| 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->context1 = 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); |
| 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->context1 = 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); |
| 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) |
| { |
| if (timeout) |
| rport->dev_loss_tmo = timeout; |
| else |
| rport->dev_loss_tmo = 1; |
| } |
| |
| /** |
| * 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_cfgparam - Used during probe_one to init the adapter structure |
| * @phba: lpfc_hba pointer. |
| **/ |
| void |
| lpfc_get_cfgparam(struct lpfc_hba *phba) |
| { |
| lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); |
| 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_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_auto_imax_init(phba, lpfc_auto_imax); |
| lpfc_fcp_imax_init(phba, lpfc_fcp_imax); |
| 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; |
| |
| 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_io_channel_init(phba, lpfc_fcp_io_channel); |
| lpfc_nvme_io_channel_init(phba, lpfc_nvme_io_channel); |
| 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_enable_fc4_type = LPFC_ENABLE_FCP; |
| phba->cfg_enable_bbcr = 0; |
| } else { |
| /* We MUST have FCP support */ |
| if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) |
| phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; |
| } |
| |
| if (phba->cfg_auto_imax && !phba->cfg_fcp_imax) |
| phba->cfg_auto_imax = 0; |
| phba->initial_imax = phba->cfg_fcp_imax; |
| |
| phba->cfg_enable_pbde = 0; |
| |
| /* A value of 0 means use the number of CPUs found in the system */ |
| if (phba->cfg_fcp_io_channel == 0) |
| phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; |
| if (phba->cfg_nvme_io_channel == 0) |
| phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; |
| |
| if (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME) |
| phba->cfg_fcp_io_channel = 0; |
| |
| if (phba->cfg_enable_fc4_type == LPFC_ENABLE_FCP) |
| phba->cfg_nvme_io_channel = 0; |
| |
| if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) |
| phba->io_channel_irqs = phba->cfg_fcp_io_channel; |
| else |
| phba->io_channel_irqs = phba->cfg_nvme_io_channel; |
| |
| phba->cfg_soft_wwnn = 0L; |
| phba->cfg_soft_wwpn = 0L; |
| lpfc_xri_split_init(phba, lpfc_xri_split); |
| lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); |
| lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); |
| lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); |
| 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_iocb_cnt_init(phba, lpfc_iocb_cnt); |
| lpfc_delay_discovery_init(phba, lpfc_delay_discovery); |
| lpfc_sli_mode_init(phba, lpfc_sli_mode); |
| phba->cfg_enable_dss = 1; |
| lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); |
| 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) |
| { |
| if (phba->cfg_nvme_io_channel > phba->sli4_hba.num_present_cpu) |
| phba->cfg_nvme_io_channel = phba->sli4_hba.num_present_cpu; |
| |
| if (phba->cfg_fcp_io_channel > phba->sli4_hba.num_present_cpu) |
| phba->cfg_fcp_io_channel = phba->sli4_hba.num_present_cpu; |
| |
| if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && |
| phba->nvmet_support) { |
| phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; |
| phba->cfg_fcp_io_channel = 0; |
| |
| 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_nvme_io_channel; |
| |
| /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ |
| if (phba->cfg_nvmet_mrq > phba->cfg_nvme_io_channel) { |
| phba->cfg_nvmet_mrq = phba->cfg_nvme_io_channel; |
| 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 = LPFC_NVMET_MRQ_OFF; |
| phba->cfg_nvmet_fb_size = 0; |
| } |
| |
| if (phba->cfg_fcp_io_channel > phba->cfg_nvme_io_channel) |
| phba->io_channel_irqs = phba->cfg_fcp_io_channel; |
| else |
| phba->io_channel_irqs = phba->cfg_nvme_io_channel; |
| } |
| |
| /** |
| * lpfc_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; |
| } |