| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| James Smart | 18035 | 66.47% | 270 | 78.95% |
| James Bottomley | 5808 | 21.41% | 3 | 0.88% |
| Justin Tee | 1486 | 5.48% | 14 | 4.09% |
| Bart Van Assche | 376 | 1.39% | 3 | 0.88% |
| Dick Kennedy | 328 | 1.21% | 8 | 2.34% |
| Jamie Wellnitz | 288 | 1.06% | 6 | 1.75% |
| Tony Jones | 223 | 0.82% | 1 | 0.29% |
| Yani Ioannou | 188 | 0.69% | 1 | 0.29% |
| Gaurav Srivastava | 93 | 0.34% | 1 | 0.29% |
| Silvio Cesare | 91 | 0.34% | 1 | 0.29% |
| Björn Helgaas | 37 | 0.14% | 1 | 0.29% |
| Andrew Vasquez | 30 | 0.11% | 2 | 0.58% |
| Rui Zhang | 20 | 0.07% | 1 | 0.29% |
| Chris Wright | 20 | 0.07% | 1 | 0.29% |
| Lee Jones | 19 | 0.07% | 3 | 0.88% |
| Joe Perches | 16 | 0.06% | 2 | 0.58% |
| Michael Christie | 13 | 0.05% | 1 | 0.29% |
| Arnd Bergmann | 11 | 0.04% | 4 | 1.17% |
| Andrew Morton | 6 | 0.02% | 1 | 0.29% |
| Hannes Reinecke | 6 | 0.02% | 2 | 0.58% |
| Bo Liu | 5 | 0.02% | 1 | 0.29% |
| Andy Shevchenko | 5 | 0.02% | 1 | 0.29% |
| Masanari Iida | 4 | 0.01% | 1 | 0.29% |
| Alan Cox | 3 | 0.01% | 1 | 0.29% |
| Paul Gortmaker | 3 | 0.01% | 1 | 0.29% |
| Avi Kivity | 3 | 0.01% | 1 | 0.29% |
| Linas Vepstas | 3 | 0.01% | 1 | 0.29% |
| Tomohiro Kusumi | 2 | 0.01% | 1 | 0.29% |
| Randy Dunlap | 2 | 0.01% | 1 | 0.29% |
| George Kadianakis | 2 | 0.01% | 1 | 0.29% |
| Dan Carpenter | 2 | 0.01% | 1 | 0.29% |
| Lucas De Marchi | 1 | 0.00% | 1 | 0.29% |
| Saurav Girepunje | 1 | 0.00% | 1 | 0.29% |
| Ye Bin | 1 | 0.00% | 1 | 0.29% |
| André Goddard Rosa | 1 | 0.00% | 1 | 0.29% |
| Kuppuswamy Sathyanarayanan | 1 | 0.00% | 1 | 0.29% |
| Total | 27133 | 342 |
/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2017-2024 Broadcom. All Rights Reserved. The term * * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. * * Copyright (C) 2004-2016 Emulex. All rights reserved. * * EMULEX and SLI are trademarks of Emulex. * * www.broadcom.com * * Portions Copyright (C) 2004-2005 Christoph Hellwig * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of version 2 of the GNU General * * Public License as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful. * * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * * TO BE LEGALLY INVALID. See the GNU General Public License for * * more details, a copy of which can be found in the file COPYING * * included with this package. * *******************************************************************/ #include <linux/ctype.h> #include <linux/delay.h> #include <linux/pci.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/aer.h> #include <linux/gfp.h> #include <linux/kernel.h> #include <scsi/scsi.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_tcq.h> #include <scsi/scsi_transport_fc.h> #include <scsi/fc/fc_fs.h> #include "lpfc_hw4.h" #include "lpfc_hw.h" #include "lpfc_sli.h" #include "lpfc_sli4.h" #include "lpfc_nl.h" #include "lpfc_disc.h" #include "lpfc.h" #include "lpfc_scsi.h" #include "lpfc_nvme.h" #include "lpfc_logmsg.h" #include "lpfc_version.h" #include "lpfc_compat.h" #include "lpfc_crtn.h" #include "lpfc_vport.h" #include "lpfc_attr.h" #define LPFC_DEF_DEVLOSS_TMO 30 #define LPFC_MIN_DEVLOSS_TMO 1 #define LPFC_MAX_DEVLOSS_TMO 255 #define LPFC_MAX_INFO_TMP_LEN 100 #define LPFC_INFO_MORE_STR "\nCould be more info...\n" /* * Write key size should be multiple of 4. If write key is changed * make sure that library write key is also changed. */ #define LPFC_REG_WRITE_KEY_SIZE 4 #define LPFC_REG_WRITE_KEY "EMLX" const char *const trunk_errmsg[] = { /* map errcode */ "", /* There is no such error code at index 0*/ "link negotiated speed does not match existing" " trunk - link was \"low\" speed", "link negotiated speed does not match" " existing trunk - link was \"middle\" speed", "link negotiated speed does not match existing" " trunk - link was \"high\" speed", "Attached to non-trunking port - F_Port", "Attached to non-trunking port - N_Port", "FLOGI response timeout", "non-FLOGI frame received", "Invalid FLOGI response", "Trunking initialization protocol", "Trunk peer device mismatch", }; /** * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules * @incr: integer to convert. * @hdw: ascii string holding converted integer plus a string terminator. * * Description: * JEDEC Joint Electron Device Engineering Council. * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii * character string. The string is then terminated with a NULL in byte 9. * Hex 0-9 becomes ascii '0' to '9'. * Hex a-f becomes ascii '=' to 'B' capital B. * * Notes: * Coded for 32 bit integers only. **/ static void lpfc_jedec_to_ascii(int incr, char hdw[]) { int i, j; for (i = 0; i < 8; i++) { j = (incr & 0xf); if (j <= 9) hdw[7 - i] = 0x30 + j; else hdw[7 - i] = 0x61 + j - 10; incr = (incr >> 4); } hdw[8] = 0; return; } static ssize_t lpfc_cmf_info_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_cgn_info *cp = NULL; struct lpfc_cgn_stat *cgs; int len = 0; int cpu; u64 rcv, total; char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; if (phba->cgn_i) cp = (struct lpfc_cgn_info *)phba->cgn_i->virt; scnprintf(tmp, sizeof(tmp), "Congestion Mgmt Info: E2Eattr %d Ver %d " "CMF %d cnt %d\n", phba->sli4_hba.pc_sli4_params.mi_cap, cp ? cp->cgn_info_version : 0, phba->sli4_hba.pc_sli4_params.cmf, phba->cmf_timer_cnt); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; if (!phba->sli4_hba.pc_sli4_params.cmf) goto buffer_done; switch (phba->cgn_init_reg_signal) { case EDC_CG_SIG_WARN_ONLY: scnprintf(tmp, sizeof(tmp), "Register: Init: Signal:WARN "); break; case EDC_CG_SIG_WARN_ALARM: scnprintf(tmp, sizeof(tmp), "Register: Init: Signal:WARN|ALARM "); break; default: scnprintf(tmp, sizeof(tmp), "Register: Init: Signal:NONE "); break; } if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; switch (phba->cgn_init_reg_fpin) { case LPFC_CGN_FPIN_WARN: scnprintf(tmp, sizeof(tmp), "FPIN:WARN\n"); break; case LPFC_CGN_FPIN_ALARM: scnprintf(tmp, sizeof(tmp), "FPIN:ALARM\n"); break; case LPFC_CGN_FPIN_BOTH: scnprintf(tmp, sizeof(tmp), "FPIN:WARN|ALARM\n"); break; default: scnprintf(tmp, sizeof(tmp), "FPIN:NONE\n"); break; } if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; switch (phba->cgn_reg_signal) { case EDC_CG_SIG_WARN_ONLY: scnprintf(tmp, sizeof(tmp), " Current: Signal:WARN "); break; case EDC_CG_SIG_WARN_ALARM: scnprintf(tmp, sizeof(tmp), " Current: Signal:WARN|ALARM "); break; default: scnprintf(tmp, sizeof(tmp), " Current: Signal:NONE "); break; } if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; switch (phba->cgn_reg_fpin) { case LPFC_CGN_FPIN_WARN: scnprintf(tmp, sizeof(tmp), "FPIN:WARN ACQEcnt:%d\n", phba->cgn_acqe_cnt); break; case LPFC_CGN_FPIN_ALARM: scnprintf(tmp, sizeof(tmp), "FPIN:ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); break; case LPFC_CGN_FPIN_BOTH: scnprintf(tmp, sizeof(tmp), "FPIN:WARN|ALARM ACQEcnt:%d\n", phba->cgn_acqe_cnt); break; default: scnprintf(tmp, sizeof(tmp), "FPIN:NONE ACQEcnt:%d\n", phba->cgn_acqe_cnt); break; } if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; if (phba->cmf_active_mode != phba->cgn_p.cgn_param_mode) { switch (phba->cmf_active_mode) { case LPFC_CFG_OFF: scnprintf(tmp, sizeof(tmp), "Active: Mode:Off\n"); break; case LPFC_CFG_MANAGED: scnprintf(tmp, sizeof(tmp), "Active: Mode:Managed\n"); break; case LPFC_CFG_MONITOR: scnprintf(tmp, sizeof(tmp), "Active: Mode:Monitor\n"); break; default: scnprintf(tmp, sizeof(tmp), "Active: Mode:Unknown\n"); } if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; } switch (phba->cgn_p.cgn_param_mode) { case LPFC_CFG_OFF: scnprintf(tmp, sizeof(tmp), "Config: Mode:Off "); break; case LPFC_CFG_MANAGED: scnprintf(tmp, sizeof(tmp), "Config: Mode:Managed "); break; case LPFC_CFG_MONITOR: scnprintf(tmp, sizeof(tmp), "Config: Mode:Monitor "); break; default: scnprintf(tmp, sizeof(tmp), "Config: Mode:Unknown "); } if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; total = 0; rcv = 0; for_each_present_cpu(cpu) { cgs = per_cpu_ptr(phba->cmf_stat, cpu); total += atomic64_read(&cgs->total_bytes); rcv += atomic64_read(&cgs->rcv_bytes); } scnprintf(tmp, sizeof(tmp), "IObusy:%d Info:%d Bytes: Rcv:x%llx Total:x%llx\n", atomic_read(&phba->cmf_busy), phba->cmf_active_info, rcv, total); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "Port_speed:%d Link_byte_cnt:%ld " "Max_byte_per_interval:%ld\n", lpfc_sli_port_speed_get(phba), (unsigned long)phba->cmf_link_byte_count, (unsigned long)phba->cmf_max_bytes_per_interval); strlcat(buf, tmp, PAGE_SIZE); buffer_done: len = strnlen(buf, PAGE_SIZE); if (unlikely(len >= (PAGE_SIZE - 1))) { lpfc_printf_log(phba, KERN_INFO, LOG_CGN_MGMT, "6312 Catching potential buffer " "overflow > PAGE_SIZE = %lu bytes\n", PAGE_SIZE); strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1); } return len; } /** * lpfc_drvr_version_show - Return the Emulex driver string with version number * @dev: class unused variable. * @attr: device attribute, not used. * @buf: on return contains the module description text. * * Returns: size of formatted string. **/ static ssize_t lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, char *buf) { return scnprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); } /** * lpfc_enable_fip_show - Return the fip mode of the HBA * @dev: class unused variable. * @attr: device attribute, not used. * @buf: on return contains the module description text. * * Returns: size of formatted string. **/ static ssize_t lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; if (test_bit(HBA_FIP_SUPPORT, &phba->hba_flag)) return scnprintf(buf, PAGE_SIZE, "1\n"); else return scnprintf(buf, PAGE_SIZE, "0\n"); } static ssize_t lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = shost_priv(shost); struct lpfc_hba *phba = vport->phba; struct lpfc_nvmet_tgtport *tgtp; struct nvme_fc_local_port *localport; struct lpfc_nvme_lport *lport; struct lpfc_nvme_rport *rport; struct lpfc_nodelist *ndlp; struct nvme_fc_remote_port *nrport; struct lpfc_fc4_ctrl_stat *cstat; uint64_t data1, data2, data3; uint64_t totin, totout, tot; unsigned long iflags; char *statep; int i; int len = 0; char tmp[LPFC_MAX_INFO_TMP_LEN] = {0}; if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) { len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n"); return len; } if (phba->nvmet_support) { if (!phba->targetport) { len = scnprintf(buf, PAGE_SIZE, "NVME Target: x%llx is not allocated\n", wwn_to_u64(vport->fc_portname.u.wwn)); return len; } /* Port state is only one of two values for now. */ if (phba->targetport->port_id) statep = "REGISTERED"; else statep = "INIT"; scnprintf(tmp, sizeof(tmp), "NVME Target Enabled State %s\n", statep); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "%s%d WWPN x%llx WWNN x%llx DID x%06x\n", "NVME Target: lpfc", phba->brd_no, wwn_to_u64(vport->fc_portname.u.wwn), wwn_to_u64(vport->fc_nodename.u.wwn), phba->targetport->port_id); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; if (strlcat(buf, "\nNVME Target: Statistics\n", PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; scnprintf(tmp, sizeof(tmp), "LS: Rcv %08x Drop %08x Abort %08x\n", atomic_read(&tgtp->rcv_ls_req_in), atomic_read(&tgtp->rcv_ls_req_drop), atomic_read(&tgtp->xmt_ls_abort)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; if (atomic_read(&tgtp->rcv_ls_req_in) != atomic_read(&tgtp->rcv_ls_req_out)) { scnprintf(tmp, sizeof(tmp), "Rcv LS: in %08x != out %08x\n", atomic_read(&tgtp->rcv_ls_req_in), atomic_read(&tgtp->rcv_ls_req_out)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; } scnprintf(tmp, sizeof(tmp), "LS: Xmt %08x Drop %08x Cmpl %08x\n", atomic_read(&tgtp->xmt_ls_rsp), atomic_read(&tgtp->xmt_ls_drop), atomic_read(&tgtp->xmt_ls_rsp_cmpl)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "LS: RSP Abort %08x xb %08x Err %08x\n", atomic_read(&tgtp->xmt_ls_rsp_aborted), atomic_read(&tgtp->xmt_ls_rsp_xb_set), atomic_read(&tgtp->xmt_ls_rsp_error)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "FCP: Rcv %08x Defer %08x Release %08x " "Drop %08x\n", atomic_read(&tgtp->rcv_fcp_cmd_in), atomic_read(&tgtp->rcv_fcp_cmd_defer), atomic_read(&tgtp->xmt_fcp_release), atomic_read(&tgtp->rcv_fcp_cmd_drop)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; if (atomic_read(&tgtp->rcv_fcp_cmd_in) != atomic_read(&tgtp->rcv_fcp_cmd_out)) { scnprintf(tmp, sizeof(tmp), "Rcv FCP: in %08x != out %08x\n", atomic_read(&tgtp->rcv_fcp_cmd_in), atomic_read(&tgtp->rcv_fcp_cmd_out)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; } scnprintf(tmp, sizeof(tmp), "FCP Rsp: RD %08x rsp %08x WR %08x rsp %08x " "drop %08x\n", atomic_read(&tgtp->xmt_fcp_read), atomic_read(&tgtp->xmt_fcp_read_rsp), atomic_read(&tgtp->xmt_fcp_write), atomic_read(&tgtp->xmt_fcp_rsp), atomic_read(&tgtp->xmt_fcp_drop)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "FCP Rsp Cmpl: %08x err %08x drop %08x\n", atomic_read(&tgtp->xmt_fcp_rsp_cmpl), atomic_read(&tgtp->xmt_fcp_rsp_error), atomic_read(&tgtp->xmt_fcp_rsp_drop)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "FCP Rsp Abort: %08x xb %08x xricqe %08x\n", atomic_read(&tgtp->xmt_fcp_rsp_aborted), atomic_read(&tgtp->xmt_fcp_rsp_xb_set), atomic_read(&tgtp->xmt_fcp_xri_abort_cqe)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "ABORT: Xmt %08x Cmpl %08x\n", atomic_read(&tgtp->xmt_fcp_abort), atomic_read(&tgtp->xmt_fcp_abort_cmpl)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "ABORT: Sol %08x Usol %08x Err %08x Cmpl %08x\n", atomic_read(&tgtp->xmt_abort_sol), atomic_read(&tgtp->xmt_abort_unsol), atomic_read(&tgtp->xmt_abort_rsp), atomic_read(&tgtp->xmt_abort_rsp_error)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "DELAY: ctx %08x fod %08x wqfull %08x\n", atomic_read(&tgtp->defer_ctx), atomic_read(&tgtp->defer_fod), atomic_read(&tgtp->defer_wqfull)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; /* Calculate outstanding IOs */ tot = atomic_read(&tgtp->rcv_fcp_cmd_drop); tot += atomic_read(&tgtp->xmt_fcp_release); tot = atomic_read(&tgtp->rcv_fcp_cmd_in) - tot; scnprintf(tmp, sizeof(tmp), "IO_CTX: %08x WAIT: cur %08x tot %08x\n" "CTX Outstanding %08llx\n\n", phba->sli4_hba.nvmet_xri_cnt, phba->sli4_hba.nvmet_io_wait_cnt, phba->sli4_hba.nvmet_io_wait_total, tot); strlcat(buf, tmp, PAGE_SIZE); goto buffer_done; } localport = vport->localport; if (!localport) { len = scnprintf(buf, PAGE_SIZE, "NVME Initiator x%llx is not allocated\n", wwn_to_u64(vport->fc_portname.u.wwn)); return len; } lport = (struct lpfc_nvme_lport *)localport->private; if (strlcat(buf, "\nNVME Initiator Enabled\n", PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "XRI Dist lpfc%d Total %d IO %d ELS %d\n", phba->brd_no, phba->sli4_hba.max_cfg_param.max_xri, phba->sli4_hba.io_xri_max, lpfc_sli4_get_els_iocb_cnt(phba)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; /* Port state is only one of two values for now. */ if (localport->port_id) statep = "ONLINE"; else statep = "UNKNOWN "; scnprintf(tmp, sizeof(tmp), "%s%d WWPN x%llx WWNN x%llx DID x%06x %s\n", "NVME LPORT lpfc", phba->brd_no, wwn_to_u64(vport->fc_portname.u.wwn), wwn_to_u64(vport->fc_nodename.u.wwn), localport->port_id, statep); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { nrport = NULL; spin_lock(&ndlp->lock); rport = lpfc_ndlp_get_nrport(ndlp); if (rport) nrport = rport->remoteport; spin_unlock(&ndlp->lock); if (!nrport) continue; /* Port state is only one of two values for now. */ switch (nrport->port_state) { case FC_OBJSTATE_ONLINE: statep = "ONLINE"; break; case FC_OBJSTATE_UNKNOWN: statep = "UNKNOWN "; break; default: statep = "UNSUPPORTED"; break; } /* Tab in to show lport ownership. */ if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; if (phba->brd_no >= 10) { if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; } scnprintf(tmp, sizeof(tmp), "WWPN x%llx ", nrport->port_name); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; scnprintf(tmp, sizeof(tmp), "WWNN x%llx ", nrport->node_name); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; scnprintf(tmp, sizeof(tmp), "DID x%06x ", nrport->port_id); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; /* An NVME rport can have multiple roles. */ if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) { if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; } if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) { if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; } if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) { if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; } if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR | FC_PORT_ROLE_NVME_TARGET | FC_PORT_ROLE_NVME_DISCOVERY)) { scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x", nrport->port_role); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; } scnprintf(tmp, sizeof(tmp), "%s\n", statep); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto unlock_buf_done; } spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); if (!lport) goto buffer_done; if (strlcat(buf, "\nNVME Statistics\n", PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "LS: Xmt %010x Cmpl %010x Abort %08x\n", atomic_read(&lport->fc4NvmeLsRequests), atomic_read(&lport->fc4NvmeLsCmpls), atomic_read(&lport->xmt_ls_abort)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "LS XMIT: Err %08x CMPL: xb %08x Err %08x\n", atomic_read(&lport->xmt_ls_err), atomic_read(&lport->cmpl_ls_xb), atomic_read(&lport->cmpl_ls_err)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; totin = 0; totout = 0; for (i = 0; i < phba->cfg_hdw_queue; i++) { cstat = &phba->sli4_hba.hdwq[i].nvme_cstat; tot = cstat->io_cmpls; totin += tot; data1 = cstat->input_requests; data2 = cstat->output_requests; data3 = cstat->control_requests; totout += (data1 + data2 + data3); } scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " "OutIO %016llx\n", totin, totout, totout - totin); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "\tabort %08x noxri %08x nondlp %08x qdepth %08x " "wqerr %08x err %08x\n", atomic_read(&lport->xmt_fcp_abort), atomic_read(&lport->xmt_fcp_noxri), atomic_read(&lport->xmt_fcp_bad_ndlp), atomic_read(&lport->xmt_fcp_qdepth), atomic_read(&lport->xmt_fcp_wqerr), atomic_read(&lport->xmt_fcp_err)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "FCP CMPL: xb %08x Err %08x\n", atomic_read(&lport->cmpl_fcp_xb), atomic_read(&lport->cmpl_fcp_err)); strlcat(buf, tmp, PAGE_SIZE); /* host_lock is already unlocked. */ goto buffer_done; unlock_buf_done: spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); buffer_done: len = strnlen(buf, PAGE_SIZE); if (unlikely(len >= (PAGE_SIZE - 1))) { lpfc_printf_log(phba, KERN_INFO, LOG_NVME, "6314 Catching potential buffer " "overflow > PAGE_SIZE = %lu bytes\n", PAGE_SIZE); strscpy(buf + PAGE_SIZE - 1 - sizeof(LPFC_INFO_MORE_STR), LPFC_INFO_MORE_STR, sizeof(LPFC_INFO_MORE_STR) + 1); } return len; } static ssize_t lpfc_scsi_stat_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = shost_priv(shost); struct lpfc_hba *phba = vport->phba; int len; struct lpfc_fc4_ctrl_stat *cstat; u64 data1, data2, data3; u64 tot, totin, totout; int i; char tmp[LPFC_MAX_SCSI_INFO_TMP_LEN] = {0}; if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_FCP) || (phba->sli_rev != LPFC_SLI_REV4)) return 0; scnprintf(buf, PAGE_SIZE, "SCSI HDWQ Statistics\n"); totin = 0; totout = 0; for (i = 0; i < phba->cfg_hdw_queue; i++) { cstat = &phba->sli4_hba.hdwq[i].scsi_cstat; tot = cstat->io_cmpls; totin += tot; data1 = cstat->input_requests; data2 = cstat->output_requests; data3 = cstat->control_requests; totout += (data1 + data2 + data3); scnprintf(tmp, sizeof(tmp), "HDWQ (%d): Rd %016llx Wr %016llx " "IO %016llx ", i, data1, data2, data3); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; scnprintf(tmp, sizeof(tmp), "Cmpl %016llx OutIO %016llx\n", tot, ((data1 + data2 + data3) - tot)); if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE) goto buffer_done; } scnprintf(tmp, sizeof(tmp), "Total FCP Cmpl %016llx Issue %016llx " "OutIO %016llx\n", totin, totout, totout - totin); strlcat(buf, tmp, PAGE_SIZE); buffer_done: len = strnlen(buf, PAGE_SIZE); return len; } static ssize_t lpfc_bg_info_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; if (phba->cfg_enable_bg) { if (phba->sli3_options & LPFC_SLI3_BG_ENABLED) return scnprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n"); else return scnprintf(buf, PAGE_SIZE, "BlockGuard Not Supported\n"); } else return scnprintf(buf, PAGE_SIZE, "BlockGuard Disabled\n"); } static ssize_t lpfc_bg_guard_err_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%llu\n", (unsigned long long)phba->bg_guard_err_cnt); } static ssize_t lpfc_bg_apptag_err_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%llu\n", (unsigned long long)phba->bg_apptag_err_cnt); } static ssize_t lpfc_bg_reftag_err_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%llu\n", (unsigned long long)phba->bg_reftag_err_cnt); } /** * lpfc_info_show - Return some pci info about the host in ascii * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the formatted text from lpfc_info(). * * Returns: size of formatted string. **/ static ssize_t lpfc_info_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); return scnprintf(buf, PAGE_SIZE, "%s\n", lpfc_info(host)); } /** * lpfc_serialnum_show - Return the hba serial number in ascii * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the formatted text serial number. * * Returns: size of formatted string. **/ static ssize_t lpfc_serialnum_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%s\n", phba->SerialNumber); } /** * lpfc_temp_sensor_show - Return the temperature sensor level * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the formatted support level. * * Description: * Returns a number indicating the temperature sensor level currently * supported, zero or one in ascii. * * Returns: size of formatted string. **/ static ssize_t lpfc_temp_sensor_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->temp_sensor_support); } /** * lpfc_modeldesc_show - Return the model description of the hba * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the scsi vpd model description. * * Returns: size of formatted string. **/ static ssize_t lpfc_modeldesc_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelDesc); } /** * lpfc_modelname_show - Return the model name of the hba * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the scsi vpd model name. * * Returns: size of formatted string. **/ static ssize_t lpfc_modelname_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ModelName); } /** * lpfc_programtype_show - Return the program type of the hba * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the scsi vpd program type. * * Returns: size of formatted string. **/ static ssize_t lpfc_programtype_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%s\n", phba->ProgramType); } /** * lpfc_vportnum_show - Return the port number in ascii of the hba * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains scsi vpd program type. * * Returns: size of formatted string. **/ static ssize_t lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%s\n", phba->Port); } /** * lpfc_fwrev_show - Return the firmware rev running in the hba * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the scsi vpd program type. * * Returns: size of formatted string. **/ static ssize_t lpfc_fwrev_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; uint32_t if_type; uint8_t sli_family; char fwrev[FW_REV_STR_SIZE]; int len; lpfc_decode_firmware_rev(phba, fwrev, 1); if_type = phba->sli4_hba.pc_sli4_params.if_type; sli_family = phba->sli4_hba.pc_sli4_params.sli_family; if (phba->sli_rev < LPFC_SLI_REV4) len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev); else len = scnprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n", fwrev, phba->sli_rev, if_type, sli_family); return len; } /** * lpfc_hdw_show - Return the jedec information about the hba * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the scsi vpd program type. * * Returns: size of formatted string. **/ static ssize_t lpfc_hdw_show(struct device *dev, struct device_attribute *attr, char *buf) { char hdw[9]; struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; lpfc_vpd_t *vp = &phba->vpd; lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); return scnprintf(buf, PAGE_SIZE, "%s %08x %08x\n", hdw, vp->rev.smRev, vp->rev.smFwRev); } /** * lpfc_option_rom_version_show - Return the adapter ROM FCode version * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the ROM and FCode ascii strings. * * Returns: size of formatted string. **/ static ssize_t lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; char fwrev[FW_REV_STR_SIZE]; if (phba->sli_rev < LPFC_SLI_REV4) return scnprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); lpfc_decode_firmware_rev(phba, fwrev, 1); return scnprintf(buf, PAGE_SIZE, "%s\n", fwrev); } /** * lpfc_link_state_show - Return the link state of the port * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains text describing the state of the link. * * Notes: * The switch statement has no default so zero will be returned. * * Returns: size of formatted string. **/ static ssize_t lpfc_link_state_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int len = 0; switch (phba->link_state) { case LPFC_LINK_UNKNOWN: case LPFC_WARM_START: case LPFC_INIT_START: case LPFC_INIT_MBX_CMDS: case LPFC_LINK_DOWN: case LPFC_HBA_ERROR: if (test_bit(LINK_DISABLED, &phba->hba_flag)) len += scnprintf(buf + len, PAGE_SIZE-len, "Link Down - User disabled\n"); else len += scnprintf(buf + len, PAGE_SIZE-len, "Link Down\n"); break; case LPFC_LINK_UP: case LPFC_CLEAR_LA: case LPFC_HBA_READY: len += scnprintf(buf + len, PAGE_SIZE-len, "Link Up - "); switch (vport->port_state) { case LPFC_LOCAL_CFG_LINK: len += scnprintf(buf + len, PAGE_SIZE-len, "Configuring Link\n"); break; case LPFC_FDISC: case LPFC_FLOGI: case LPFC_FABRIC_CFG_LINK: case LPFC_NS_REG: case LPFC_NS_QRY: case LPFC_BUILD_DISC_LIST: case LPFC_DISC_AUTH: len += scnprintf(buf + len, PAGE_SIZE - len, "Discovery\n"); break; case LPFC_VPORT_READY: len += scnprintf(buf + len, PAGE_SIZE - len, "Ready\n"); break; case LPFC_VPORT_FAILED: len += scnprintf(buf + len, PAGE_SIZE - len, "Failed\n"); break; case LPFC_VPORT_UNKNOWN: len += scnprintf(buf + len, PAGE_SIZE - len, "Unknown\n"); break; } if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { if (test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) len += scnprintf(buf + len, PAGE_SIZE-len, " Public Loop\n"); else len += scnprintf(buf + len, PAGE_SIZE-len, " Private Loop\n"); } else { if (test_bit(FC_FABRIC, &vport->fc_flag)) { if (phba->sli_rev == LPFC_SLI_REV4 && vport->port_type == LPFC_PHYSICAL_PORT && phba->sli4_hba.fawwpn_flag & LPFC_FAWWPN_FABRIC) len += scnprintf(buf + len, PAGE_SIZE - len, " Fabric FA-PWWN\n"); else len += scnprintf(buf + len, PAGE_SIZE - len, " Fabric\n"); } else { len += scnprintf(buf + len, PAGE_SIZE-len, " Point-2-Point\n"); } } } if ((phba->sli_rev == LPFC_SLI_REV4) && ((bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) == LPFC_SLI_INTF_IF_TYPE_6))) { struct lpfc_trunk_link link = phba->trunk_link; if (bf_get(lpfc_conf_trunk_port0, &phba->sli4_hba)) len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 0: Link %s %s\n", (link.link0.state == LPFC_LINK_UP) ? "Up" : "Down. ", trunk_errmsg[link.link0.fault]); if (bf_get(lpfc_conf_trunk_port1, &phba->sli4_hba)) len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 1: Link %s %s\n", (link.link1.state == LPFC_LINK_UP) ? "Up" : "Down. ", trunk_errmsg[link.link1.fault]); if (bf_get(lpfc_conf_trunk_port2, &phba->sli4_hba)) len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 2: Link %s %s\n", (link.link2.state == LPFC_LINK_UP) ? "Up" : "Down. ", trunk_errmsg[link.link2.fault]); if (bf_get(lpfc_conf_trunk_port3, &phba->sli4_hba)) len += scnprintf(buf + len, PAGE_SIZE - len, "Trunk port 3: Link %s %s\n", (link.link3.state == LPFC_LINK_UP) ? "Up" : "Down. ", trunk_errmsg[link.link3.fault]); } return len; } /** * lpfc_sli4_protocol_show - Return the fip mode of the HBA * @dev: class unused variable. * @attr: device attribute, not used. * @buf: on return contains the module description text. * * Returns: size of formatted string. **/ static ssize_t lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; if (phba->sli_rev < LPFC_SLI_REV4) return scnprintf(buf, PAGE_SIZE, "fc\n"); if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) { if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE) return scnprintf(buf, PAGE_SIZE, "fcoe\n"); if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC) return scnprintf(buf, PAGE_SIZE, "fc\n"); } return scnprintf(buf, PAGE_SIZE, "unknown\n"); } /** * lpfc_oas_supported_show - Return whether or not Optimized Access Storage * (OAS) is supported. * @dev: class unused variable. * @attr: device attribute, not used. * @buf: on return contains the module description text. * * Returns: size of formatted string. **/ static ssize_t lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->sli4_hba.pc_sli4_params.oas_supported); } /** * lpfc_link_state_store - Transition the link_state on an HBA port * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: one or more lpfc_polling_flags values. * @count: not used. * * Returns: * -EINVAL if the buffer is not "up" or "down" * return from link state change function if non-zero * length of the buf on success **/ static ssize_t lpfc_link_state_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int status = -EINVAL; if ((strncmp(buf, "up", sizeof("up") - 1) == 0) && (phba->link_state == LPFC_LINK_DOWN)) status = phba->lpfc_hba_init_link(phba, MBX_NOWAIT); else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) && (phba->link_state >= LPFC_LINK_UP)) status = phba->lpfc_hba_down_link(phba, MBX_NOWAIT); if (status == 0) return strlen(buf); else return status; } /** * lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the sum of fc mapped and unmapped. * * Description: * Returns the ascii text number of the sum of the fc mapped and unmapped * vport counts. * * Returns: size of formatted string. **/ static ssize_t lpfc_num_discovered_ports_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; return scnprintf(buf, PAGE_SIZE, "%d\n", atomic_read(&vport->fc_map_cnt) + atomic_read(&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 (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) || test_bit(LINK_DISABLED, &phba->hba_flag) || (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) return -EPERM; pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); if (!pmboxq) return -ENOMEM; memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; pmboxq->u.mb.mbxOwner = OWN_HOST; if (test_bit(FC_PT2PT, &vport->fc_flag)) clear_bit(FC_PT2PT_NO_NVME, &vport->fc_flag); mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == 0 || pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed); mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); if ((mbxstatus == MBX_SUCCESS) && (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, "2859 SLI authentication is required " "for INIT_LINK but has not done yet\n"); } lpfc_set_loopback_flag(phba); if (mbxstatus != MBX_TIMEOUT) mempool_free(pmboxq, phba->mbox_mem_pool); if (mbxstatus == MBXERR_ERROR) return -EIO; return 0; } int lpfc_emptyq_wait(struct lpfc_hba *phba, struct list_head *q, spinlock_t *lock) { int cnt = 0; spin_lock_irq(lock); while (!list_empty(q)) { spin_unlock_irq(lock); msleep(20); if (cnt++ > 250) { /* 5 secs */ lpfc_printf_log(phba, KERN_WARNING, LOG_INIT, "0466 Outstanding IO when " "bringing Adapter offline\n"); return 0; } spin_lock_irq(lock); } spin_unlock_irq(lock); return 1; } /** * lpfc_do_offline - Issues a mailbox command to bring the link down * @phba: lpfc_hba pointer. * @type: LPFC_EVT_OFFLINE, LPFC_EVT_WARM_START, LPFC_EVT_KILL. * * Notes: * Assumes any error from lpfc_do_offline() will be negative. * Can wait up to 5 seconds for the port ring buffers count * to reach zero, prints a warning if it is not zero and continues. * lpfc_workq_post_event() returns a non-zero return code if call fails. * * Returns: * -EIO error posting the event * zero for success **/ static int lpfc_do_offline(struct lpfc_hba *phba, uint32_t type) { struct completion online_compl; struct lpfc_queue *qp = NULL; struct lpfc_sli_ring *pring; struct lpfc_sli *psli; int status = 0; int i; int rc; init_completion(&online_compl); rc = lpfc_workq_post_event(phba, &status, &online_compl, LPFC_EVT_OFFLINE_PREP); if (rc == 0) return -ENOMEM; wait_for_completion(&online_compl); if (status != 0) return -EIO; psli = &phba->sli; /* * If freeing the queues have already started, don't access them. * Otherwise set FREE_WAIT to indicate that queues are being used * to hold the freeing process until we finish. */ spin_lock_irq(&phba->hbalock); if (!(psli->sli_flag & LPFC_QUEUE_FREE_INIT)) { psli->sli_flag |= LPFC_QUEUE_FREE_WAIT; } else { spin_unlock_irq(&phba->hbalock); goto skip_wait; } spin_unlock_irq(&phba->hbalock); /* Wait a little for things to settle down, but not * long enough for dev loss timeout to expire. */ if (phba->sli_rev != LPFC_SLI_REV4) { for (i = 0; i < psli->num_rings; i++) { pring = &psli->sli3_ring[i]; if (!lpfc_emptyq_wait(phba, &pring->txcmplq, &phba->hbalock)) goto out; } } else { list_for_each_entry(qp, &phba->sli4_hba.lpfc_wq_list, wq_list) { pring = qp->pring; if (!pring) continue; if (!lpfc_emptyq_wait(phba, &pring->txcmplq, &pring->ring_lock)) goto out; } } out: spin_lock_irq(&phba->hbalock); psli->sli_flag &= ~LPFC_QUEUE_FREE_WAIT; spin_unlock_irq(&phba->hbalock); skip_wait: init_completion(&online_compl); rc = lpfc_workq_post_event(phba, &status, &online_compl, type); if (rc == 0) return -ENOMEM; wait_for_completion(&online_compl); if (status != 0) return -EIO; return 0; } /** * lpfc_reset_pci_bus - resets PCI bridge controller's secondary bus of an HBA * @phba: lpfc_hba pointer. * * Description: * Issues a PCI secondary bus reset for the phba->pcidev. * * Notes: * First walks the bus_list to ensure only PCI devices with Emulex * vendor id, device ids that support hot reset, only one occurrence * of function 0, and all ports on the bus are in offline mode to ensure the * hot reset only affects one valid HBA. * * Returns: * -ENOTSUPP, cfg_enable_hba_reset must be of value 2 * -ENODEV, NULL ptr to pcidev * -EBADSLT, detected invalid device * -EBUSY, port is not in offline state * 0, successful */ static int lpfc_reset_pci_bus(struct lpfc_hba *phba) { struct pci_dev *pdev = phba->pcidev; struct Scsi_Host *shost = NULL; struct lpfc_hba *phba_other = NULL; struct pci_dev *ptr = NULL; int res; if (phba->cfg_enable_hba_reset != 2) return -ENOTSUPP; if (!pdev) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8345 pdev NULL!\n"); return -ENODEV; } res = lpfc_check_pci_resettable(phba); if (res) return res; /* Walk the list of devices on the pci_dev's bus */ list_for_each_entry(ptr, &pdev->bus->devices, bus_list) { /* Check port is offline */ shost = pci_get_drvdata(ptr); if (shost) { phba_other = ((struct lpfc_vport *)shost->hostdata)->phba; if (!test_bit(FC_OFFLINE_MODE, &phba_other->pport->fc_flag)) { lpfc_printf_log(phba_other, KERN_INFO, LOG_INIT, "8349 WWPN = 0x%02x%02x%02x%02x" "%02x%02x%02x%02x is not " "offline!\n", phba_other->wwpn[0], phba_other->wwpn[1], phba_other->wwpn[2], phba_other->wwpn[3], phba_other->wwpn[4], phba_other->wwpn[5], phba_other->wwpn[6], phba_other->wwpn[7]); return -EBUSY; } } } /* Issue PCI bus reset */ res = pci_reset_bus(pdev); if (res) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "8350 PCI reset bus failed: %d\n", res); } return res; } /** * lpfc_selective_reset - Offline then onlines the port * @phba: lpfc_hba pointer. * * Description: * If the port is configured to allow a reset then the hba is brought * offline then online. * * Notes: * Assumes any error from lpfc_do_offline() will be negative. * Do not make this function static. * * Returns: * lpfc_do_offline() return code if not zero * -EIO reset not configured or error posting the event * zero for success **/ int lpfc_selective_reset(struct lpfc_hba *phba) { struct completion online_compl; int status = 0; int rc; if (!phba->cfg_enable_hba_reset) return -EACCES; if (!test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag)) { status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); if (status != 0) return status; } init_completion(&online_compl); rc = lpfc_workq_post_event(phba, &status, &online_compl, LPFC_EVT_ONLINE); if (rc == 0) return -ENOMEM; wait_for_completion(&online_compl); if (status != 0) return -EIO; return 0; } /** * lpfc_issue_reset - Selectively resets an adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing the string "selective". * @count: unused variable. * * Description: * If the buf contains the string "selective" then lpfc_selective_reset() * is called to perform the reset. * * Notes: * Assumes any error from lpfc_selective_reset() will be negative. * If lpfc_selective_reset() returns zero then the length of the buffer * is returned which indicates success * * Returns: * -EINVAL if the buffer does not contain the string "selective" * length of buf if lpfc-selective_reset() if the call succeeds * return value of lpfc_selective_reset() if the call fails **/ static ssize_t lpfc_issue_reset(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int status = -EINVAL; if (!phba->cfg_enable_hba_reset) return -EACCES; if (strncmp(buf, "selective", sizeof("selective") - 1) == 0) status = phba->lpfc_selective_reset(phba); if (status == 0) return strlen(buf); else return status; } /** * lpfc_sli4_pdev_status_reg_wait - Wait for pdev status register for readyness * @phba: lpfc_hba pointer. * * Description: * SLI4 interface type-2 device to wait on the sliport status register for * the readyness after performing a firmware reset. * * Returns: * zero for success, -EPERM when port does not have privilege to perform the * reset, -EIO when port timeout from recovering from the reset. * * Note: * As the caller will interpret the return code by value, be careful in making * change or addition to return codes. **/ int lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba) { struct lpfc_register portstat_reg = {0}; int i; msleep(100); if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, &portstat_reg.word0)) return -EIO; /* verify if privileged for the request operation */ if (!bf_get(lpfc_sliport_status_rn, &portstat_reg) && !bf_get(lpfc_sliport_status_err, &portstat_reg)) return -EPERM; /* There is no point to wait if the port is in an unrecoverable * state. */ if (lpfc_sli4_unrecoverable_port(&portstat_reg)) return -EIO; /* wait for the SLI port firmware ready after firmware reset */ for (i = 0; i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT; i++) { msleep(10); if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr, &portstat_reg.word0)) continue; if (!bf_get(lpfc_sliport_status_err, &portstat_reg)) continue; if (!bf_get(lpfc_sliport_status_rn, &portstat_reg)) continue; if (!bf_get(lpfc_sliport_status_rdy, &portstat_reg)) continue; break; } if (i < LPFC_FW_RESET_MAXIMUM_WAIT_10MS_CNT) return 0; else return -EIO; } /** * lpfc_sli4_pdev_reg_request - Request physical dev to perform a register acc * @phba: lpfc_hba pointer. * @opcode: The sli4 config command opcode. * * Description: * Request SLI4 interface type-2 device to perform a physical register set * access. * * Returns: * zero for success **/ static ssize_t lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode) { struct completion online_compl; struct pci_dev *pdev = phba->pcidev; unsigned long before_fc_flag; uint32_t sriov_nr_virtfn; uint32_t reg_val; int status = 0, rc = 0; int job_posted = 1, sriov_err; if (!phba->cfg_enable_hba_reset) return -EACCES; if ((phba->sli_rev < LPFC_SLI_REV4) || (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) < LPFC_SLI_INTF_IF_TYPE_2)) return -EPERM; /* Keep state if we need to restore back */ before_fc_flag = phba->pport->fc_flag; sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn; if (opcode == LPFC_FW_DUMP) { init_completion(&online_compl); phba->fw_dump_cmpl = &online_compl; } else { /* Disable SR-IOV virtual functions if enabled */ if (phba->cfg_sriov_nr_virtfn) { pci_disable_sriov(pdev); phba->cfg_sriov_nr_virtfn = 0; } status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); if (status != 0) return status; /* wait for the device to be quiesced before firmware reset */ msleep(100); } reg_val = readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); if (opcode == LPFC_FW_DUMP) reg_val |= LPFC_FW_DUMP_REQUEST; else if (opcode == LPFC_FW_RESET) reg_val |= LPFC_CTL_PDEV_CTL_FRST; else if (opcode == LPFC_DV_RESET) reg_val |= LPFC_CTL_PDEV_CTL_DRST; writel(reg_val, phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); /* flush */ readl(phba->sli4_hba.conf_regs_memmap_p + LPFC_CTL_PDEV_CTL_OFFSET); /* delay driver action following IF_TYPE_2 reset */ rc = lpfc_sli4_pdev_status_reg_wait(phba); if (rc == -EPERM) { /* no privilege for reset */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "3150 No privilege to perform the requested " "access: x%x\n", reg_val); } else if (rc == -EIO) { /* reset failed, there is nothing more we can do */ lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "3153 Fail to perform the requested " "access: x%x\n", reg_val); if (phba->fw_dump_cmpl) phba->fw_dump_cmpl = NULL; return rc; } /* keep the original port state */ if (test_bit(FC_OFFLINE_MODE, &before_fc_flag)) { if (phba->fw_dump_cmpl) phba->fw_dump_cmpl = NULL; goto out; } /* Firmware dump will trigger an HA_ERATT event, and * lpfc_handle_eratt_s4 routine already handles bringing the port back * online. */ if (opcode == LPFC_FW_DUMP) { wait_for_completion(phba->fw_dump_cmpl); } else { init_completion(&online_compl); job_posted = lpfc_workq_post_event(phba, &status, &online_compl, LPFC_EVT_ONLINE); if (!job_posted) goto out; wait_for_completion(&online_compl); } out: /* in any case, restore the virtual functions enabled as before */ if (sriov_nr_virtfn) { /* If fw_dump was performed, first disable to clean up */ if (opcode == LPFC_FW_DUMP) { pci_disable_sriov(pdev); phba->cfg_sriov_nr_virtfn = 0; } sriov_err = lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn); if (!sriov_err) phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn; } /* return proper error code */ if (!rc) { if (!job_posted) rc = -ENOMEM; else if (status) rc = -EIO; } return rc; } /** * lpfc_nport_evt_cnt_show - Return the number of nport events * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the ascii number of nport events. * * Returns: size of formatted string. **/ static ssize_t lpfc_nport_evt_cnt_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); } static int lpfc_set_trunking(struct lpfc_hba *phba, char *buff_out) { LPFC_MBOXQ_t *mbox = NULL; unsigned long val = 0; char *pval = NULL; int rc = 0; if (!strncmp("enable", buff_out, strlen("enable"))) { pval = buff_out + strlen("enable") + 1; rc = kstrtoul(pval, 0, &val); if (rc) return rc; /* Invalid number */ } else if (!strncmp("disable", buff_out, strlen("disable"))) { val = 0; } else { return -EINVAL; /* Invalid command */ } switch (val) { case 0: val = 0x0; /* Disable */ break; case 2: val = 0x1; /* Enable two port trunk */ break; case 4: val = 0x2; /* Enable four port trunk */ break; default: return -EINVAL; } lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, "0070 Set trunk mode with val %ld ", val); mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!mbox) return -ENOMEM; lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE, LPFC_MBOX_OPCODE_FCOE_FC_SET_TRUNK_MODE, 12, LPFC_SLI4_MBX_EMBED); bf_set(lpfc_mbx_set_trunk_mode, &mbox->u.mqe.un.set_trunk_mode, val); rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL); if (rc) lpfc_printf_log(phba, KERN_ERR, LOG_MBOX, "0071 Set trunk mode failed with status: %d", rc); mempool_free(mbox, phba->mbox_mem_pool); return 0; } static ssize_t lpfc_xcvr_data_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 rc; int len = 0; struct lpfc_rdp_context *rdp_context; u16 temperature; u16 rx_power; u16 tx_bias; u16 tx_power; u16 vcc; char chbuf[128]; u16 wavelength = 0; struct sff_trasnceiver_codes_byte7 *trasn_code_byte7; /* Get transceiver information */ rdp_context = kmalloc(sizeof(*rdp_context), GFP_KERNEL); rc = lpfc_get_sfp_info_wait(phba, rdp_context); if (rc) { len = scnprintf(buf, PAGE_SIZE - len, "SFP info NA:\n"); goto out_free_rdp; } strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_NAME], 16); len = scnprintf(buf, PAGE_SIZE - len, "VendorName:\t%s\n", chbuf); len += scnprintf(buf + len, PAGE_SIZE - len, "VendorOUI:\t%02x-%02x-%02x\n", (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI], (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 1], (uint8_t)rdp_context->page_a0[SSF_VENDOR_OUI + 2]); strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_PN], 16); len += scnprintf(buf + len, PAGE_SIZE - len, "VendorPN:\t%s\n", chbuf); strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_SN], 16); len += scnprintf(buf + len, PAGE_SIZE - len, "VendorSN:\t%s\n", chbuf); strscpy(chbuf, &rdp_context->page_a0[SSF_VENDOR_REV], 4); len += scnprintf(buf + len, PAGE_SIZE - len, "VendorRev:\t%s\n", chbuf); strscpy(chbuf, &rdp_context->page_a0[SSF_DATE_CODE], 8); len += scnprintf(buf + len, PAGE_SIZE - len, "DateCode:\t%s\n", chbuf); len += scnprintf(buf + len, PAGE_SIZE - len, "Identifier:\t%xh\n", (uint8_t)rdp_context->page_a0[SSF_IDENTIFIER]); len += scnprintf(buf + len, PAGE_SIZE - len, "ExtIdentifier:\t%xh\n", (uint8_t)rdp_context->page_a0[SSF_EXT_IDENTIFIER]); len += scnprintf(buf + len, PAGE_SIZE - len, "Connector:\t%xh\n", (uint8_t)rdp_context->page_a0[SSF_CONNECTOR]); wavelength = (rdp_context->page_a0[SSF_WAVELENGTH_B1] << 8) | rdp_context->page_a0[SSF_WAVELENGTH_B0]; len += scnprintf(buf + len, PAGE_SIZE - len, "Wavelength:\t%d nm\n", wavelength); trasn_code_byte7 = (struct sff_trasnceiver_codes_byte7 *) &rdp_context->page_a0[SSF_TRANSCEIVER_CODE_B7]; len += scnprintf(buf + len, PAGE_SIZE - len, "Speeds: \t"); if (*(uint8_t *)trasn_code_byte7 == 0) { len += scnprintf(buf + len, PAGE_SIZE - len, "Unknown\n"); } else { if (trasn_code_byte7->fc_sp_100MB) len += scnprintf(buf + len, PAGE_SIZE - len, "1 "); if (trasn_code_byte7->fc_sp_200mb) len += scnprintf(buf + len, PAGE_SIZE - len, "2 "); if (trasn_code_byte7->fc_sp_400MB) len += scnprintf(buf + len, PAGE_SIZE - len, "4 "); if (trasn_code_byte7->fc_sp_800MB) len += scnprintf(buf + len, PAGE_SIZE - len, "8 "); if (trasn_code_byte7->fc_sp_1600MB) len += scnprintf(buf + len, PAGE_SIZE - len, "16 "); if (trasn_code_byte7->fc_sp_3200MB) len += scnprintf(buf + len, PAGE_SIZE - len, "32 "); if (trasn_code_byte7->speed_chk_ecc) len += scnprintf(buf + len, PAGE_SIZE - len, "64 "); len += scnprintf(buf + len, PAGE_SIZE - len, "GB\n"); } temperature = (rdp_context->page_a2[SFF_TEMPERATURE_B1] << 8 | rdp_context->page_a2[SFF_TEMPERATURE_B0]); vcc = (rdp_context->page_a2[SFF_VCC_B1] << 8 | rdp_context->page_a2[SFF_VCC_B0]); tx_power = (rdp_context->page_a2[SFF_TXPOWER_B1] << 8 | rdp_context->page_a2[SFF_TXPOWER_B0]); tx_bias = (rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B1] << 8 | rdp_context->page_a2[SFF_TX_BIAS_CURRENT_B0]); rx_power = (rdp_context->page_a2[SFF_RXPOWER_B1] << 8 | rdp_context->page_a2[SFF_RXPOWER_B0]); len += scnprintf(buf + len, PAGE_SIZE - len, "Temperature:\tx%04x C\n", temperature); len += scnprintf(buf + len, PAGE_SIZE - len, "Vcc:\t\tx%04x V\n", vcc); len += scnprintf(buf + len, PAGE_SIZE - len, "TxBiasCurrent:\tx%04x mA\n", tx_bias); len += scnprintf(buf + len, PAGE_SIZE - len, "TxPower:\tx%04x mW\n", tx_power); len += scnprintf(buf + len, PAGE_SIZE - len, "RxPower:\tx%04x mW\n", rx_power); out_free_rdp: kfree(rdp_context); return len; } /** * lpfc_board_mode_show - Return the state of the board * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the state of the adapter. * * Returns: size of formatted string. **/ static ssize_t lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; char * state; if (phba->link_state == LPFC_HBA_ERROR) state = "error"; else if (phba->link_state == LPFC_WARM_START) state = "warm start"; else if (phba->link_state == LPFC_INIT_START) state = "offline"; else state = "online"; return scnprintf(buf, PAGE_SIZE, "%s\n", state); } /** * lpfc_board_mode_store - Puts the hba in online, offline, warm or error state * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing one of the strings "online", "offline", "warm" or "error". * @count: unused variable. * * Returns: * -EACCES if enable hba reset not enabled * -EINVAL if the buffer does not contain a valid string (see above) * -EIO if lpfc_workq_post_event() or lpfc_do_offline() fails * buf length greater than zero indicates success **/ static ssize_t lpfc_board_mode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct completion online_compl; char *board_mode_str = NULL; int status = 0; int rc; if (!phba->cfg_enable_hba_reset) { status = -EACCES; goto board_mode_out; } lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3050 lpfc_board_mode set to %s\n", buf); init_completion(&online_compl); if(strncmp(buf, "online", sizeof("online") - 1) == 0) { rc = lpfc_workq_post_event(phba, &status, &online_compl, LPFC_EVT_ONLINE); if (rc == 0) { status = -ENOMEM; goto board_mode_out; } wait_for_completion(&online_compl); if (status) status = -EIO; } else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0) status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0) if (phba->sli_rev == LPFC_SLI_REV4) status = -EINVAL; else status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); else if (strncmp(buf, "error", sizeof("error") - 1) == 0) if (phba->sli_rev == LPFC_SLI_REV4) status = -EINVAL; else status = lpfc_do_offline(phba, LPFC_EVT_KILL); else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0) status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_DUMP); else if (strncmp(buf, "fw_reset", sizeof("fw_reset") - 1) == 0) status = lpfc_sli4_pdev_reg_request(phba, LPFC_FW_RESET); else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0) status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET); else if (strncmp(buf, "pci_bus_reset", sizeof("pci_bus_reset") - 1) == 0) status = lpfc_reset_pci_bus(phba); else if (strncmp(buf, "heartbeat", sizeof("heartbeat") - 1) == 0) lpfc_issue_hb_tmo(phba); else if (strncmp(buf, "trunk", sizeof("trunk") - 1) == 0) status = lpfc_set_trunking(phba, (char *)buf + sizeof("trunk")); else status = -EINVAL; board_mode_out: if (!status) return strlen(buf); else { board_mode_str = strchr(buf, '\n'); if (board_mode_str) *board_mode_str = '\0'; lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3097 Failed \"%s\", status(%d), " "fc_flag(x%lx)\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) { LPFC_MBOXQ_t *pmboxq; MAILBOX_t *pmb; int rc = 0; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param; u16 rsrc_ext_cnt, rsrc_ext_size, max_vpi; /* * prevent udev from issuing mailbox commands until the port is * configured. */ if (phba->link_state < LPFC_LINK_DOWN || !phba->mbox_mem_pool || (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) return 0; if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) return 0; pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmboxq) return 0; memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); pmb = &pmboxq->u.mb; pmb->mbxCommand = MBX_READ_CONFIG; pmb->mbxOwner = OWN_HOST; pmboxq->ctx_buf = NULL; if (test_bit(FC_OFFLINE_MODE, &phba->pport->fc_flag)) 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) { sli4_hba = &phba->sli4_hba; max_cfg_param = &sli4_hba->max_cfg_param; /* Normally, extents are not used */ if (!phba->sli4_hba.extents_in_use) { if (mrpi) *mrpi = max_cfg_param->max_rpi; if (mxri) *mxri = max_cfg_param->max_xri; if (mvpi) { max_vpi = max_cfg_param->max_vpi; /* Limit the max we support */ if (max_vpi > LPFC_MAX_VPI) max_vpi = LPFC_MAX_VPI; *mvpi = max_vpi; } } else { /* Extents in use */ if (mrpi) { if (lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_RPI, &rsrc_ext_cnt, &rsrc_ext_size)) { rc = 0; goto free_pmboxq; } *mrpi = rsrc_ext_cnt * rsrc_ext_size; } if (mxri) { if (lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_XRI, &rsrc_ext_cnt, &rsrc_ext_size)) { rc = 0; goto free_pmboxq; } *mxri = rsrc_ext_cnt * rsrc_ext_size; } if (mvpi) { if (lpfc_sli4_get_avail_extnt_rsrc(phba, LPFC_RSC_TYPE_FCOE_VPI, &rsrc_ext_cnt, &rsrc_ext_size)) { rc = 0; goto free_pmboxq; } max_vpi = rsrc_ext_cnt * rsrc_ext_size; /* Limit the max we support */ if (max_vpi > LPFC_MAX_VPI) max_vpi = LPFC_MAX_VPI; *mvpi = max_vpi; } } } 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; } } /* Success */ rc = 1; free_pmboxq: mempool_free(pmboxq, phba->mbox_mem_pool); return rc; } /** * 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; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param; u32 cnt = 0, acnt = 0; if (phba->sli_rev == LPFC_SLI_REV4) { sli4_hba = &phba->sli4_hba; max_cfg_param = &sli4_hba->max_cfg_param; return scnprintf(buf, PAGE_SIZE, "%d\n", max_cfg_param->rpi_used); } else { 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; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param; u32 cnt = 0, acnt = 0; if (phba->sli_rev == LPFC_SLI_REV4) { sli4_hba = &phba->sli4_hba; max_cfg_param = &sli4_hba->max_cfg_param; return scnprintf(buf, PAGE_SIZE, "%d\n", max_cfg_param->xri_used); } else { 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; struct lpfc_sli4_hba *sli4_hba; struct lpfc_max_cfg_param *max_cfg_param; u32 cnt = 0, acnt = 0; if (phba->sli_rev == LPFC_SLI_REV4) { sli4_hba = &phba->sli4_hba; max_cfg_param = &sli4_hba->max_cfg_param; return scnprintf(buf, PAGE_SIZE, "%d\n", max_cfg_param->vpi_used); } else { if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) return scnprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); } return scnprintf(buf, PAGE_SIZE, "Unknown\n"); } /** * lpfc_npiv_info_show - Return text about NPIV support for the adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: text that must be interpreted to determine if npiv is supported. * * Description: * Buffer will contain text indicating npiv is not suppoerted on the port, * the port is an NPIV physical port, or it is an npiv virtual port with * the id of the vport. * * Returns: size of formatted string. **/ static ssize_t lpfc_npiv_info_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; if (!(phba->max_vpi)) return scnprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); if (vport->port_type == LPFC_PHYSICAL_PORT) return scnprintf(buf, PAGE_SIZE, "NPIV Physical\n"); return scnprintf(buf, PAGE_SIZE, "NPIV Virtual (VPI %d)\n", vport->vpi); } /** * lpfc_poll_show - Return text about poll support for the adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the cfg_poll in hex. * * Notes: * cfg_poll should be a lpfc_polling_flags type. * * Returns: size of formatted string. **/ static ssize_t lpfc_poll_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%#x\n", phba->cfg_poll); } /** * lpfc_poll_store - Set the value of cfg_poll for the adapter * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: one or more lpfc_polling_flags values. * @count: not used. * * Notes: * buf contents converted to integer and checked for a valid value. * * Returns: * -EINVAL if the buffer connot be converted or is out of range * length of the buf on success **/ static ssize_t lpfc_poll_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; uint32_t creg_val; uint32_t old_val; int val=0; if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; if ((val & 0x3) != val) return -EINVAL; if (phba->sli_rev == LPFC_SLI_REV4) val = 0; lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3051 lpfc_poll changed from %d to %d\n", phba->cfg_poll, val); spin_lock_irq(&phba->hbalock); old_val = phba->cfg_poll; if (val & ENABLE_FCP_RING_POLLING) { if ((val & DISABLE_FCP_RING_INT) && !(old_val & DISABLE_FCP_RING_INT)) { if (lpfc_readl(phba->HCregaddr, &creg_val)) { spin_unlock_irq(&phba->hbalock); return -EINVAL; } creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ lpfc_poll_start_timer(phba); } } else if (val != 0x0) { spin_unlock_irq(&phba->hbalock); return -EINVAL; } if (!(val & DISABLE_FCP_RING_INT) && (old_val & DISABLE_FCP_RING_INT)) { spin_unlock_irq(&phba->hbalock); del_timer(&phba->fcp_poll_timer); spin_lock_irq(&phba->hbalock); if (lpfc_readl(phba->HCregaddr, &creg_val)) { spin_unlock_irq(&phba->hbalock); return -EINVAL; } creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); writel(creg_val, phba->HCregaddr); readl(phba->HCregaddr); /* flush */ } phba->cfg_poll = val; spin_unlock_irq(&phba->hbalock); return strlen(buf); } /** * lpfc_sriov_hw_max_virtfn_show - Return maximum number of virtual functions * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the formatted support level. * * Description: * Returns the maximum number of virtual functions a physical function can * support, 0 will be returned if called on virtual function. * * Returns: size of formatted string. **/ static ssize_t lpfc_sriov_hw_max_virtfn_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; uint16_t max_nr_virtfn; max_nr_virtfn = lpfc_sli_sriov_nr_virtfn_get(phba); return scnprintf(buf, PAGE_SIZE, "%d\n", max_nr_virtfn); } /** * lpfc_enable_bbcr_set: Sets an attribute value. * @phba: pointer to the adapter structure. * @val: integer attribute value. * * Description: * Validates the min and max values then sets the * adapter config field if in the valid range. prints error message * and does not set the parameter if invalid. * * Returns: * zero on success * -EINVAL if val is invalid */ static ssize_t lpfc_enable_bbcr_set(struct lpfc_hba *phba, uint val) { if (lpfc_rangecheck(val, 0, 1) && phba->sli_rev == LPFC_SLI_REV4) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3068 lpfc_enable_bbcr changed from %d to " "%d\n", phba->cfg_enable_bbcr, val); phba->cfg_enable_bbcr = val; return 0; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0451 lpfc_enable_bbcr cannot set to %d, range is 0, " "1\n", val); return -EINVAL; } /* * lpfc_param_show - Return a cfg attribute value in decimal * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_show. * * lpfc_##attr##_show: Return the decimal value of an adapters cfg_xxx field. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the attribute value in decimal. * * Returns: size of formatted string. **/ #define lpfc_param_show(attr) \ static ssize_t \ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ struct lpfc_hba *phba = vport->phba;\ return scnprintf(buf, PAGE_SIZE, "%d\n",\ phba->cfg_##attr);\ } /* * lpfc_param_hex_show - Return a cfg attribute value in hex * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_show * * lpfc_##attr##_show: Return the hex value of an adapters cfg_xxx field. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: on return contains the attribute value in hexadecimal. * * Returns: size of formatted string. **/ #define lpfc_param_hex_show(attr) \ static ssize_t \ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ struct lpfc_hba *phba = vport->phba;\ uint val = 0;\ val = phba->cfg_##attr;\ return scnprintf(buf, PAGE_SIZE, "%#x\n",\ phba->cfg_##attr);\ } /* * lpfc_param_init - Initializes a cfg attribute * * Description: * Macro that given an attr e.g. hba_queue_depth expands * into a function with the name lpfc_hba_queue_depth_init. The macro also * takes a default argument, a minimum and maximum argument. * * lpfc_##attr##_init: Initializes an attribute. * @phba: pointer to 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 to 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 to 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 to the adapter structure. * @val: integer attribute value. * * Returns: * zero on success * -EINVAL if val is invalid **/ #define lpfc_vport_param_set(attr, default, minval, maxval) \ static int \ lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ { \ if (lpfc_rangecheck(val, minval, maxval)) {\ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ "3053 lpfc_" #attr \ " changed from %d (x%x) to %d (x%x)\n", \ vport->cfg_##attr, vport->cfg_##attr, \ val, val); \ vport->cfg_##attr = val;\ return 0;\ }\ lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ "0424 lpfc_"#attr" attribute cannot be set to %d, "\ "allowed range is ["#minval", "#maxval"]\n", val); \ return -EINVAL;\ } /* * lpfc_vport_param_store - Set a vport attribute * * Description: * Macro that given an attr e.g. hba_queue_depth * expands into a function with the name lpfc_hba_queue_depth_store * * lpfc_##attr##_store: convert the ascii text number to an integer, then * use the lpfc_##attr##_set function to set the value. * @cdev: class device that is converted into a Scsi_host. * @buf: contains the attribute value in decimal. * @count: not used. * * Returns: * -EINVAL if val is invalid or lpfc_##attr##_set() fails * length of buffer upon success. **/ #define lpfc_vport_param_store(attr) \ static ssize_t \ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \ const char *buf, size_t count) \ { \ struct Scsi_Host *shost = class_to_shost(dev);\ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\ uint val = 0;\ if (!isdigit(buf[0]))\ return -EINVAL;\ if (sscanf(buf, "%i", &val) != 1)\ return -EINVAL;\ if (lpfc_##attr##_set(vport, val) == 0) \ return strlen(buf);\ else \ return -EINVAL;\ } static DEVICE_ATTR(nvme_info, 0444, lpfc_nvme_info_show, NULL); static DEVICE_ATTR(scsi_stat, 0444, lpfc_scsi_stat_show, NULL); static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, lpfc_link_state_store); static DEVICE_ATTR(option_rom_version, S_IRUGO, lpfc_option_rom_version_show, NULL); static DEVICE_ATTR(num_discovered_ports, S_IRUGO, lpfc_num_discovered_ports_show, NULL); static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); static DEVICE_ATTR_RO(lpfc_drvr_version); static DEVICE_ATTR_RO(lpfc_enable_fip); static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, lpfc_board_mode_show, lpfc_board_mode_store); static DEVICE_ATTR_RO(lpfc_xcvr_data); static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); static DEVICE_ATTR_RO(lpfc_temp_sensor); static DEVICE_ATTR_RO(lpfc_sriov_hw_max_virtfn); static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL); static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show, NULL); static DEVICE_ATTR(cmf_info, 0444, lpfc_cmf_info_show, NULL); #define WWN_SZ 8 /** * lpfc_wwn_set - Convert string to the 8 byte WWN value. * @buf: WWN string. * @cnt: Length of string. * @wwn: Array to receive converted wwn value. * * Returns: * -EINVAL if the buffer does not contain a valid wwn * 0 success **/ static size_t lpfc_wwn_set(const char *buf, size_t cnt, char wwn[]) { unsigned int i, j; /* Count may include a LF at end of string */ if (buf[cnt-1] == '\n') cnt--; if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) return -EINVAL; memset(wwn, 0, WWN_SZ); /* Validate and store the new name */ for (i = 0, j = 0; i < 16; i++) { if ((*buf >= 'a') && (*buf <= 'f')) j = ((j << 4) | ((*buf++ - 'a') + 10)); else if ((*buf >= 'A') && (*buf <= 'F')) j = ((j << 4) | ((*buf++ - 'A') + 10)); else if ((*buf >= '0') && (*buf <= '9')) j = ((j << 4) | (*buf++ - '0')); else return -EINVAL; if (i % 2) { wwn[i/2] = j & 0xff; j = 0; } } return 0; } /** * lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for * Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * Returns: * value of count **/ static ssize_t lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; return scnprintf(buf, PAGE_SIZE, "0x%llx\n", wwn_to_u64(phba->cfg_oas_tgt_wwpn)); } /** * lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for * Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * @count: Size of the data buffer. * * Returns: * -EINVAL count is invalid, invalid wwpn byte invalid * -EPERM oas is not supported by hba * value of count on success **/ static ssize_t lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; unsigned int cnt = count; uint8_t wwpn[WWN_SZ]; int rc; if (!phba->cfg_fof) return -EPERM; /* count may include a LF at end of string */ if (buf[cnt-1] == '\n') cnt--; rc = lpfc_wwn_set(buf, cnt, wwpn); if (rc) return rc; memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t))); if (wwn_to_u64(wwpn) == 0) phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET; else phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET; phba->cfg_oas_flags &= ~OAS_LUN_VALID; phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; return count; } static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR, lpfc_oas_tgt_show, lpfc_oas_tgt_store); /** * lpfc_oas_priority_show - Return wwpn of target whose luns maybe enabled for * Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * Returns: * value of count **/ static ssize_t lpfc_oas_priority_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_priority); } /** * lpfc_oas_priority_store - Store wwpn of target whose luns maybe enabled for * Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * @count: Size of the data buffer. * * Returns: * -EINVAL count is invalid, invalid wwpn byte invalid * -EPERM oas is not supported by hba * value of count on success **/ static ssize_t lpfc_oas_priority_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; unsigned int cnt = count; unsigned long val; int ret; if (!phba->cfg_fof) return -EPERM; /* count may include a LF at end of string */ if (buf[cnt-1] == '\n') cnt--; ret = kstrtoul(buf, 0, &val); if (ret || (val > 0x7f)) return -EINVAL; if (val) phba->cfg_oas_priority = (uint8_t)val; else phba->cfg_oas_priority = phba->cfg_XLanePriority; return count; } static DEVICE_ATTR(lpfc_xlane_priority, S_IRUGO | S_IWUSR, lpfc_oas_priority_show, lpfc_oas_priority_store); /** * lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled * for Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * Returns: * value of count on success **/ static ssize_t lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; return scnprintf(buf, PAGE_SIZE, "0x%llx\n", wwn_to_u64(phba->cfg_oas_vpt_wwpn)); } /** * lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled * for Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * @count: Size of the data buffer. * * Returns: * -EINVAL count is invalid, invalid wwpn byte invalid * -EPERM oas is not supported by hba * value of count on success **/ static ssize_t lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; unsigned int cnt = count; uint8_t wwpn[WWN_SZ]; int rc; if (!phba->cfg_fof) return -EPERM; /* count may include a LF at end of string */ if (buf[cnt-1] == '\n') cnt--; rc = lpfc_wwn_set(buf, cnt, wwpn); if (rc) return rc; memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t))); if (wwn_to_u64(wwpn) == 0) phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT; else phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT; phba->cfg_oas_flags &= ~OAS_LUN_VALID; if (phba->cfg_oas_priority == 0) phba->cfg_oas_priority = phba->cfg_XLanePriority; phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN; return count; } static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR, lpfc_oas_vpt_show, lpfc_oas_vpt_store); /** * lpfc_oas_lun_state_show - Return the current state (enabled or disabled) * of whether luns will be enabled or disabled * for Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * Returns: * size of formatted string. **/ static ssize_t lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state); } /** * lpfc_oas_lun_state_store - Store the state (enabled or disabled) * of whether luns will be enabled or disabled * for Optimized Access Storage (OAS) operations. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * @count: Size of the data buffer. * * Returns: * -EINVAL count is invalid, invalid wwpn byte invalid * -EPERM oas is not supported by hba * value of count on success **/ static ssize_t lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; int val = 0; if (!phba->cfg_fof) return -EPERM; if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; if ((val != 0) && (val != 1)) return -EINVAL; phba->cfg_oas_lun_state = val; return strlen(buf); } static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR, lpfc_oas_lun_state_show, lpfc_oas_lun_state_store); /** * lpfc_oas_lun_status_show - Return the status of the Optimized Access * Storage (OAS) lun returned by the * lpfc_oas_lun_show function. * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * Returns: * size of formatted string. **/ static ssize_t lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; if (!(phba->cfg_oas_flags & OAS_LUN_VALID)) return -EFAULT; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status); } static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO, lpfc_oas_lun_status_show, NULL); /** * lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage * (OAS) operations. * @phba: lpfc_hba pointer. * @vpt_wwpn: wwpn of the vport associated with the returned lun * @tgt_wwpn: wwpn of the target associated with the returned lun * @lun: the fc lun for setting oas state. * @oas_state: the oas state to be set to the lun. * @pri: priority * * Returns: * SUCCESS : 0 * -EPERM OAS is not enabled or not supported by this port. * */ static size_t lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[], uint8_t tgt_wwpn[], uint64_t lun, uint32_t oas_state, uint8_t pri) { int rc = 0; if (!phba->cfg_fof) return -EPERM; if (oas_state) { if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, (struct lpfc_name *)tgt_wwpn, lun, pri)) rc = -ENOMEM; } else { lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn, (struct lpfc_name *)tgt_wwpn, lun, pri); } return rc; } /** * lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized * Access Storage (OAS) operations. * @phba: lpfc_hba pointer. * @vpt_wwpn: wwpn of the vport associated with the returned lun * @tgt_wwpn: wwpn of the target associated with the returned lun * @lun_status: status of the lun returned lun * @lun_pri: priority of the lun returned lun * * Returns the first or next lun enabled for OAS operations for the vport/target * specified. If a lun is found, its vport wwpn, target wwpn and status is * returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned. * * Return: * lun that is OAS enabled for the vport/target * NOT_OAS_ENABLED_LUN when no oas enabled lun found. */ static uint64_t lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[], uint8_t tgt_wwpn[], uint32_t *lun_status, uint32_t *lun_pri) { uint64_t found_lun; if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn) return NOT_OAS_ENABLED_LUN; if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *) phba->sli4_hba.oas_next_vpt_wwpn, (struct lpfc_name *) phba->sli4_hba.oas_next_tgt_wwpn, &phba->sli4_hba.oas_next_lun, (struct lpfc_name *)vpt_wwpn, (struct lpfc_name *)tgt_wwpn, &found_lun, lun_status, lun_pri)) return found_lun; else return NOT_OAS_ENABLED_LUN; } /** * lpfc_oas_lun_state_change - enable/disable a lun for OAS operations * @phba: lpfc_hba pointer. * @vpt_wwpn: vport wwpn by reference. * @tgt_wwpn: target wwpn by reference. * @lun: the fc lun for setting oas state. * @oas_state: the oas state to be set to the oas_lun. * @pri: priority * * This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE) * a lun for OAS operations. * * Return: * SUCCESS: 0 * -ENOMEM: failed to enable an lun for OAS operations * -EPERM: OAS is not enabled */ static ssize_t lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[], uint8_t tgt_wwpn[], uint64_t lun, uint32_t oas_state, uint8_t pri) { int rc; rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun, oas_state, pri); return rc; } /** * lpfc_oas_lun_show - Return oas enabled luns from a chosen target * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * * This routine returns a lun enabled for OAS each time the function * is called. * * Returns: * SUCCESS: size of formatted string. * -EFAULT: target or vport wwpn was not set properly. * -EPERM: oas is not enabled. **/ static ssize_t lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; uint64_t oas_lun; int len = 0; if (!phba->cfg_fof) return -EPERM; if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)) return -EFAULT; if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)) return -EFAULT; oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn, phba->cfg_oas_tgt_wwpn, &phba->cfg_oas_lun_status, &phba->cfg_oas_priority); if (oas_lun != NOT_OAS_ENABLED_LUN) phba->cfg_oas_flags |= OAS_LUN_VALID; len += scnprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun); return len; } /** * lpfc_oas_lun_store - Sets the OAS state for lun * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: buffer for passing information. * @count: size of the formatting string * * This function sets the OAS state for lun. Before this function is called, * the vport wwpn, target wwpn, and oas state need to be set. * * Returns: * SUCCESS: size of formatted string. * -EFAULT: target or vport wwpn was not set properly. * -EPERM: oas is not enabled. * size of formatted string. **/ static ssize_t lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; uint64_t scsi_lun; uint32_t pri; ssize_t rc; if (!phba->cfg_fof) return -EPERM; if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0) return -EFAULT; if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0) return -EFAULT; if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "0x%llx", &scsi_lun) != 1) return -EINVAL; pri = phba->cfg_oas_priority; if (pri == 0) pri = phba->cfg_XLanePriority; lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "3372 Try to set vport 0x%llx target 0x%llx lun:0x%llx " "priority 0x%x with oas state %d\n", wwn_to_u64(phba->cfg_oas_vpt_wwpn), wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun, pri, phba->cfg_oas_lun_state); rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn, phba->cfg_oas_tgt_wwpn, scsi_lun, phba->cfg_oas_lun_state, pri); if (rc) return rc; return count; } static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR, lpfc_oas_lun_show, lpfc_oas_lun_store); int lpfc_enable_nvmet_cnt; unsigned long long lpfc_enable_nvmet[LPFC_NVMET_MAX_PORTS] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; module_param_array(lpfc_enable_nvmet, ullong, &lpfc_enable_nvmet_cnt, 0444); MODULE_PARM_DESC(lpfc_enable_nvmet, "Enable HBA port(s) WWPN as a NVME Target"); static int lpfc_poll = 0; module_param(lpfc_poll, int, S_IRUGO); MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" " 0 - none," " 1 - poll with interrupts enabled" " 3 - poll and disable FCP ring interrupts"); static DEVICE_ATTR_RW(lpfc_poll); int lpfc_no_hba_reset_cnt; unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); LPFC_ATTR(sli_mode, 3, 3, 3, "SLI mode selector: 3 - select SLI-3"); LPFC_ATTR_R(enable_npiv, 1, 0, 1, "Enable NPIV functionality"); LPFC_ATTR_R(fcf_failover_policy, 1, 1, 2, "FCF Fast failover=1 Priority failover=2"); /* * lpfc_fcp_wait_abts_rsp: Modifies criteria for reporting completion of * aborted IO. * The range is [0,1]. Default value is 0 * 0, IO completes after ABTS issued (default). * 1, IO completes after receipt of ABTS response or timeout. */ LPFC_ATTR_R(fcp_wait_abts_rsp, 0, 0, 1, "Wait for FCP ABTS completion"); /* # lpfc_enable_rrq: Track XRI/OXID reuse after IO failures # 0x0 = disabled, XRI/OXID use not tracked. # 0x1 = XRI/OXID reuse is timed with ratov, RRQ sent. # 0x2 = XRI/OXID reuse is timed with ratov, No RRQ sent. */ LPFC_ATTR_R(enable_rrq, 2, 0, 2, "Enable RRQ functionality"); /* # lpfc_suppress_link_up: Bring link up at initialization # 0x0 = bring link up (issue MBX_INIT_LINK) # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) # 0x2 = never bring up link # Default value is 0. */ LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, LPFC_DELAY_INIT_LINK_INDEFINITELY, "Suppress Link Up at initialization"); static ssize_t lpfc_pls_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->sli4_hba.pc_sli4_params.pls); } static DEVICE_ATTR(pls, 0444, lpfc_pls_show, NULL); static ssize_t lpfc_pt_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", test_bit(HBA_PERSISTENT_TOPO, &phba->hba_flag) ? 1 : 0); } static DEVICE_ATTR(pt, 0444, lpfc_pt_show, NULL); /* # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS # 1 - (1024) # 2 - (2048) # 3 - (3072) # 4 - (4096) # 5 - (5120) */ static ssize_t lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; return scnprintf(buf, PAGE_SIZE, "%d\n", phba->iocb_max); } static DEVICE_ATTR(iocb_hw, S_IRUGO, lpfc_iocb_hw_show, NULL); static ssize_t lpfc_txq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); return scnprintf(buf, PAGE_SIZE, "%d\n", pring ? pring->txq_max : 0); } static DEVICE_ATTR(txq_hw, S_IRUGO, lpfc_txq_hw_show, NULL); static ssize_t lpfc_txcmplq_hw_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; struct lpfc_sli_ring *pring = lpfc_phba_elsring(phba); return scnprintf(buf, PAGE_SIZE, "%d\n", pring ? pring->txcmplq_max : 0); } static DEVICE_ATTR(txcmplq_hw, S_IRUGO, lpfc_txcmplq_hw_show, NULL); /* # lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear # until the timer expires. Value range is [0,255]. Default value is 30. */ static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO; module_param(lpfc_nodev_tmo, int, 0); MODULE_PARM_DESC(lpfc_nodev_tmo, "Seconds driver will hold I/O waiting " "for a device to come back"); /** * lpfc_nodev_tmo_show - Return the hba dev loss timeout value * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains the dev loss timeout in decimal. * * Returns: size of formatted string. **/ static ssize_t lpfc_nodev_tmo_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; return scnprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_devloss_tmo); } /** * lpfc_nodev_tmo_init - Set the hba nodev timeout value * @vport: lpfc vport structure pointer. * @val: contains the nodev timeout value. * * Description: * If the devloss tmo is already set then nodev tmo is set to devloss tmo, * a kernel error message is printed and zero is returned. * Else if val is in range then nodev tmo and devloss tmo are set to val. * Otherwise nodev tmo is set to the default value. * * Returns: * zero if already set or if val is in range * -EINVAL val out of range **/ static int lpfc_nodev_tmo_init(struct lpfc_vport *vport, int val) { if (vport->cfg_devloss_tmo != LPFC_DEF_DEVLOSS_TMO) { vport->cfg_nodev_tmo = vport->cfg_devloss_tmo; if (val != LPFC_DEF_DEVLOSS_TMO) lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0407 Ignoring lpfc_nodev_tmo module " "parameter because lpfc_devloss_tmo " "is set.\n"); return 0; } if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { vport->cfg_nodev_tmo = val; vport->cfg_devloss_tmo = val; return 0; } lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0400 lpfc_nodev_tmo attribute cannot be set to" " %d, allowed range is [%d, %d]\n", val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; return -EINVAL; } /** * lpfc_update_rport_devloss_tmo - Update dev loss tmo value * @vport: lpfc vport structure pointer. * * Description: * Update all the ndlp's dev loss tmo with the vport devloss tmo value. **/ static void lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) { struct lpfc_nodelist *ndlp; unsigned long iflags; #if (IS_ENABLED(CONFIG_NVME_FC)) struct lpfc_nvme_rport *rport; struct nvme_fc_remote_port *remoteport = NULL; #endif spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->rport) ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; #if (IS_ENABLED(CONFIG_NVME_FC)) spin_lock(&ndlp->lock); rport = lpfc_ndlp_get_nrport(ndlp); if (rport) remoteport = rport->remoteport; spin_unlock(&ndlp->lock); if (rport && remoteport) nvme_fc_set_remoteport_devloss(remoteport, vport->cfg_devloss_tmo); #endif } spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); } /** * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values * @vport: lpfc vport structure pointer. * @val: contains the tmo value. * * Description: * If the devloss tmo is already set or the vport dev loss tmo has changed * then a kernel error message is printed and zero is returned. * Else if val is in range then nodev tmo and devloss tmo are set to val. * Otherwise nodev tmo is set to the default value. * * Returns: * zero if already set or if val is in range * -EINVAL val out of range **/ static int lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) { if (vport->dev_loss_tmo_changed || (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0401 Ignoring change to lpfc_nodev_tmo " "because lpfc_devloss_tmo is set.\n"); return 0; } if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { vport->cfg_nodev_tmo = val; vport->cfg_devloss_tmo = val; /* * For compat: set the fc_host dev loss so new rports * will get the value. */ fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; lpfc_update_rport_devloss_tmo(vport); return 0; } lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0403 lpfc_nodev_tmo attribute cannot be set to " "%d, allowed range is [%d, %d]\n", val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); return -EINVAL; } lpfc_vport_param_store(nodev_tmo) static DEVICE_ATTR_RW(lpfc_nodev_tmo); /* # lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that # disappear until the timer expires. Value range is [0,255]. Default # value is 30. */ module_param(lpfc_devloss_tmo, int, S_IRUGO); MODULE_PARM_DESC(lpfc_devloss_tmo, "Seconds driver will hold I/O waiting " "for a device to come back"); lpfc_vport_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO) lpfc_vport_param_show(devloss_tmo) /** * lpfc_devloss_tmo_set - Sets vport nodev tmo, devloss tmo values, changed bit * @vport: lpfc vport structure pointer. * @val: contains the tmo value. * * Description: * If val is in a valid range then set the vport nodev tmo, * devloss tmo, also set the vport dev loss tmo changed flag. * Else a kernel error message is printed. * * Returns: * zero if val is in range * -EINVAL val out of range **/ static int lpfc_devloss_tmo_set(struct lpfc_vport *vport, int val) { if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { vport->cfg_nodev_tmo = val; vport->cfg_devloss_tmo = val; vport->dev_loss_tmo_changed = 1; fc_host_dev_loss_tmo(lpfc_shost_from_vport(vport)) = val; lpfc_update_rport_devloss_tmo(vport); return 0; } lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0404 lpfc_devloss_tmo attribute cannot be set to " "%d, allowed range is [%d, %d]\n", val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); return -EINVAL; } lpfc_vport_param_store(devloss_tmo) static DEVICE_ATTR_RW(lpfc_devloss_tmo); /* * lpfc_suppress_rsp: Enable suppress rsp feature is firmware supports it * lpfc_suppress_rsp = 0 Disable * lpfc_suppress_rsp = 1 Enable (default) * */ LPFC_ATTR_R(suppress_rsp, 1, 0, 1, "Enable suppress rsp feature is firmware supports it"); /* * lpfc_nvmet_mrq: Specify number of RQ pairs for processing NVMET cmds * lpfc_nvmet_mrq = 0 driver will calcualte optimal number of RQ pairs * lpfc_nvmet_mrq = 1 use a single RQ pair * lpfc_nvmet_mrq >= 2 use specified RQ pairs for MRQ * */ LPFC_ATTR_R(nvmet_mrq, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_AUTO, LPFC_NVMET_MRQ_MAX, "Specify number of RQ pairs for processing NVMET cmds"); /* * lpfc_nvmet_mrq_post: Specify number of RQ buffer to initially post * to each NVMET RQ. Range 64 to 2048, default is 512. */ LPFC_ATTR_R(nvmet_mrq_post, LPFC_NVMET_RQE_DEF_POST, LPFC_NVMET_RQE_MIN_POST, LPFC_NVMET_RQE_DEF_COUNT, "Specify number of RQ buffers to initially post"); /* * lpfc_enable_fc4_type: Defines what FC4 types are supported. * Supported Values: 1 - register just FCP * 3 - register both FCP and NVME * Supported values are [1,3]. Default value is 3 */ LPFC_ATTR_R(enable_fc4_type, LPFC_DEF_ENBL_FC4_TYPE, LPFC_ENABLE_FCP, LPFC_MAX_ENBL_FC4_TYPE, "Enable FC4 Protocol support - FCP / NVME"); /* # lpfc_log_verbose: Only turn this flag on if you are willing to risk being # deluged with LOTS of information. # You can set a bit mask to record specific types of verbose messages: # See lpfc_logmsh.h for definitions. */ LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffffffff, "Verbose logging bit-mask"); /* # lpfc_enable_da_id: This turns on the DA_ID CT command that deregisters # objects that have been registered with the nameserver after login. */ LPFC_VPORT_ATTR_R(enable_da_id, 1, 0, 1, "Deregister nameserver objects before LOGO"); /* # lun_queue_depth: This parameter is used to limit the number of outstanding # commands per FCP LUN. */ LPFC_VPORT_ATTR_R(lun_queue_depth, 64, 1, 512, "Max number of FCP commands we can queue to a specific LUN"); /* # tgt_queue_depth: This parameter is used to limit the number of outstanding # commands per target port. Value range is [10,65535]. Default value is 65535. */ static uint lpfc_tgt_queue_depth = LPFC_MAX_TGT_QDEPTH; module_param(lpfc_tgt_queue_depth, uint, 0444); MODULE_PARM_DESC(lpfc_tgt_queue_depth, "Set max Target queue depth"); lpfc_vport_param_show(tgt_queue_depth); lpfc_vport_param_init(tgt_queue_depth, LPFC_MAX_TGT_QDEPTH, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH); /** * lpfc_tgt_queue_depth_set: Sets an attribute value. * @vport: lpfc vport structure pointer. * @val: integer attribute value. * * Description: Sets the parameter to the new value. * * Returns: * zero on success * -EINVAL if val is invalid */ static int lpfc_tgt_queue_depth_set(struct lpfc_vport *vport, uint val) { struct lpfc_nodelist *ndlp; unsigned long iflags; if (!lpfc_rangecheck(val, LPFC_MIN_TGT_QDEPTH, LPFC_MAX_TGT_QDEPTH)) return -EINVAL; if (val == vport->cfg_tgt_queue_depth) return 0; vport->cfg_tgt_queue_depth = val; /* Next loop thru nodelist and change cmd_qdepth */ spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); return 0; } lpfc_vport_param_store(tgt_queue_depth); static DEVICE_ATTR_RW(lpfc_tgt_queue_depth); /* # hba_queue_depth: This parameter is used to limit the number of outstanding # commands per lpfc HBA. Value range is [32,8192]. If this parameter # value is greater than the maximum number of exchanges supported by the HBA, # then maximum number of exchanges supported by the HBA is used to determine # the hba_queue_depth. */ LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192, "Max number of FCP commands we can queue to a lpfc HBA"); /* # peer_port_login: This parameter allows/prevents logins # between peer ports hosted on the same physical port. # When this parameter is set 0 peer ports of same physical port # are not allowed to login to each other. # When this parameter is set 1 peer ports of same physical port # are allowed to login to each other. # Default value of this parameter is 0. */ LPFC_VPORT_ATTR_R(peer_port_login, 0, 0, 1, "Allow peer ports on the same physical port to login to each " "other."); /* # restrict_login: This parameter allows/prevents logins # between Virtual Ports and remote initiators. # When this parameter is not set (0) Virtual Ports will accept PLOGIs from # other initiators and will attempt to PLOGI all remote ports. # When this parameter is set (1) Virtual Ports will reject PLOGIs from # remote ports and will not attempt to PLOGI to other initiators. # This parameter does not restrict to the physical port. # This parameter does not restrict logins to Fabric resident remote ports. # Default value of this parameter is 1. */ static int lpfc_restrict_login = 1; module_param(lpfc_restrict_login, int, S_IRUGO); MODULE_PARM_DESC(lpfc_restrict_login, "Restrict virtual ports login to remote initiators."); lpfc_vport_param_show(restrict_login); /** * lpfc_restrict_login_init - Set the vport restrict login flag * @vport: lpfc vport structure pointer. * @val: contains the restrict login value. * * Description: * If val is not in a valid range then log a kernel error message and set * the vport restrict login to one. * If the port type is physical clear the restrict login flag and return. * Else set the restrict login flag to val. * * Returns: * zero if val is in range * -EINVAL val out of range **/ static int lpfc_restrict_login_init(struct lpfc_vport *vport, int val) { if (val < 0 || val > 1) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0422 lpfc_restrict_login attribute cannot " "be set to %d, allowed range is [0, 1]\n", val); vport->cfg_restrict_login = 1; return -EINVAL; } if (vport->port_type == LPFC_PHYSICAL_PORT) { vport->cfg_restrict_login = 0; return 0; } vport->cfg_restrict_login = val; return 0; } /** * lpfc_restrict_login_set - Set the vport restrict login flag * @vport: lpfc vport structure pointer. * @val: contains the restrict login value. * * Description: * If val is not in a valid range then log a kernel error message and set * the vport restrict login to one. * If the port type is physical and the val is not zero log a kernel * error message, clear the restrict login flag and return zero. * Else set the restrict login flag to val. * * Returns: * zero if val is in range * -EINVAL val out of range **/ static int lpfc_restrict_login_set(struct lpfc_vport *vport, int val) { if (val < 0 || val > 1) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0425 lpfc_restrict_login attribute cannot " "be set to %d, allowed range is [0, 1]\n", val); vport->cfg_restrict_login = 1; return -EINVAL; } if (vport->port_type == LPFC_PHYSICAL_PORT && val != 0) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "0468 lpfc_restrict_login must be 0 for " "Physical ports.\n"); vport->cfg_restrict_login = 0; return 0; } vport->cfg_restrict_login = val; return 0; } lpfc_vport_param_store(restrict_login); static DEVICE_ATTR_RW(lpfc_restrict_login); /* # Some disk devices have a "select ID" or "select Target" capability. # From a protocol standpoint "select ID" usually means select the # Fibre channel "ALPA". In the FC-AL Profile there is an "informative # annex" which contains a table that maps a "select ID" (a number # between 0 and 7F) to an ALPA. By default, for compatibility with # older drivers, the lpfc driver scans this table from low ALPA to high # ALPA. # # Turning on the scan-down variable (on = 1, off = 0) will # cause the lpfc driver to use an inverted table, effectively # scanning ALPAs from high to low. Value range is [0,1]. Default value is 1. # # (Note: This "select ID" functionality is a LOOP ONLY characteristic # and will not work across a fabric. Also this parameter will take # effect only in the case when ALPA map is not available.) */ LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1, "Start scanning for devices from highest ALPA to lowest"); /* # lpfc_topology: link topology for init link # 0x0 = attempt loop mode then point-to-point # 0x01 = internal loopback mode # 0x02 = attempt point-to-point mode only # 0x04 = attempt loop mode only # 0x06 = attempt point-to-point mode then loop # Set point-to-point mode if you want to run as an N_Port. # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. # Default value is 0. */ LPFC_ATTR(topology, 0, 0, 6, "Select Fibre Channel topology"); /** * lpfc_topology_store - Set the adapters topology field * @dev: class device that is converted into a scsi_host. * @attr:device attribute, not used. * @buf: buffer for passing information. * @count: size of the data buffer. * * Description: * If val is in a valid range then set the adapter's topology field and * issue a lip; if the lip fails reset the topology to the old value. * * If the value is not in range log a kernel error message and return an error. * * Returns: * zero if val is in range and lip okay * non-zero return value from lpfc_issue_lip() * -EINVAL val out of range **/ static ssize_t lpfc_topology_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int val = 0; int nolip = 0; const char *val_buf = buf; int err; uint32_t prev_val; u8 sli_family, if_type; if (!strncmp(buf, "nolip ", strlen("nolip "))) { nolip = 1; val_buf = &buf[strlen("nolip ")]; } if (!isdigit(val_buf[0])) return -EINVAL; if (sscanf(val_buf, "%i", &val) != 1) return -EINVAL; if (val >= 0 && val <= 6) { prev_val = phba->cfg_topology; if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G && val == 4) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3113 Loop mode not supported at speed %d\n", val); return -EINVAL; } /* * The 'topology' is not a configurable parameter if : * - persistent topology enabled * - ASIC_GEN_NUM >= 0xC, with no private loop support */ sli_family = bf_get(lpfc_sli_intf_sli_family, &phba->sli4_hba.sli_intf); if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); if ((test_bit(HBA_PERSISTENT_TOPO, &phba->hba_flag) || (!phba->sli4_hba.pc_sli4_params.pls && (sli_family == LPFC_SLI_INTF_FAMILY_G6 || if_type == LPFC_SLI_INTF_IF_TYPE_6))) && val == 4) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3114 Loop mode not supported\n"); return -EINVAL; } phba->cfg_topology = val; if (nolip) return strlen(buf); lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, "3054 lpfc_topology changed from %d to %d\n", prev_val, val); if (prev_val != val && phba->sli_rev == LPFC_SLI_REV4) phba->fc_topology_changed = 1; err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport)); if (err) { phba->cfg_topology = prev_val; return -EINVAL; } else return strlen(buf); } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "%d:0467 lpfc_topology attribute cannot be set to %d, " "allowed range is [0, 6]\n", phba->brd_no, val); return -EINVAL; } lpfc_param_show(topology) static DEVICE_ATTR_RW(lpfc_topology); /** * lpfc_static_vport_show: Read callback function for * lpfc_static_vport sysfs file. * @dev: Pointer to class device object. * @attr: device attribute structure. * @buf: Data buffer. * * This function is the read call back function for * lpfc_static_vport sysfs file. The lpfc_static_vport * sysfs file report the mageability of the vport. **/ static ssize_t lpfc_static_vport_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; if (vport->vport_flag & STATIC_VPORT) sprintf(buf, "1\n"); else sprintf(buf, "0\n"); return strlen(buf); } /* * Sysfs attribute to control the statistical data collection. */ static DEVICE_ATTR_RO(lpfc_static_vport); /* # lpfc_link_speed: Link speed selection for initializing the Fibre Channel # connection. # Value range is [0,16]. Default value is 0. */ /** * lpfc_link_speed_store - Set the adapters link speed * @dev: Pointer to class device. * @attr: Unused. * @buf: Data buffer. * @count: Size of the data buffer. * * Description: * If val is in a valid range then set the adapter's link speed field and * issue a lip; if the lip fails reset the link speed to the old value. * * Notes: * If the value is not in range log a kernel error message and return an error. * * Returns: * zero if val is in range and lip okay. * non-zero return value from lpfc_issue_lip() * -EINVAL val out of range **/ static ssize_t lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; int val = LPFC_USER_LINK_SPEED_AUTO; int nolip = 0; const char *val_buf = buf; int err; uint32_t prev_val, if_type; if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf); if (if_type >= LPFC_SLI_INTF_IF_TYPE_2 && test_bit(HBA_FORCED_LINK_SPEED, &phba->hba_flag)) 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) # 1 = aer supported and enabled (default) # PCIe error reporting is always enabled by the PCI core, so this always # shows 1. # # N.B. Parts of LPFC_ATTR open-coded since some of the underlying # infrastructure (phba->cfg_aer_support) is gone. */ static uint lpfc_aer_support = 1; module_param(lpfc_aer_support, uint, S_IRUGO); MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support"); static ssize_t lpfc_aer_support_show(struct device *dev, struct device_attribute *attr, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", lpfc_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: * PCIe error reporting is enabled by the PCI core, so drivers don't need * to do anything. Retain this interface for backwards compatibility, * but do nothing. * * Returns: * length of the buf on success * -EINVAL if val out of range **/ static ssize_t lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int val = 0; if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; dev_info_once(dev, "PCIe error reporting automatically enabled by the PCI core; sysfs write ignored\n"); return strlen(buf); } 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, invokes the kernel AER helper routine * pci_aer_clear_nonfatal_status() to clean up the uncorrectable * error status register. * * Notes: * * Returns: * -EINVAL if the buf does not contain 1 * -EPERM if the OS cannot clear AER error status, i.e., when platform * firmware owns the AER Capability **/ 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; rc = pci_aer_clear_nonfatal_status(phba->pcidev); if (rc == 0) return strlen(buf); else return -EPERM; } static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, lpfc_aer_cleanup_state); /** * lpfc_sriov_nr_virtfn_store - Enable the adapter for sr-iov virtual functions * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing the string the number of vfs to be enabled. * @count: unused variable. * * Description: * When this api is called either through user sysfs, the driver shall * try to enable or disable SR-IOV virtual functions according to the * following: * * If zero virtual function has been enabled to the physical function, * the driver shall invoke the pci enable virtual function api trying * to enable the virtual functions. If the nr_vfn provided is greater * than the maximum supported, the maximum virtual function number will * be used for invoking the api; otherwise, the nr_vfn provided shall * be used for invoking the api. If the api call returned success, the * actual number of virtual functions enabled will be set to the driver * cfg_sriov_nr_virtfn; otherwise, -EINVAL shall be returned and driver * cfg_sriov_nr_virtfn remains zero. * * If none-zero virtual functions have already been enabled to the * physical function, as reflected by the driver's cfg_sriov_nr_virtfn, * -EINVAL will be returned and the driver does nothing; * * If the nr_vfn provided is zero and none-zero virtual functions have * been enabled, as indicated by the driver's cfg_sriov_nr_virtfn, the * disabling virtual function api shall be invoded to disable all the * virtual functions and driver's cfg_sriov_nr_virtfn shall be set to * zero. Otherwise, if zero virtual function has been enabled, do * nothing. * * Returns: * length of the buf on success if val is in range the intended mode * is supported. * -EINVAL if val out of range or intended mode is not supported. **/ static ssize_t lpfc_sriov_nr_virtfn_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct pci_dev *pdev = phba->pcidev; int val = 0, rc = -EINVAL; /* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; if (val < 0) return -EINVAL; /* Request disabling virtual functions */ if (val == 0) { if (phba->cfg_sriov_nr_virtfn > 0) { pci_disable_sriov(pdev); phba->cfg_sriov_nr_virtfn = 0; } return strlen(buf); } /* Request enabling virtual functions */ if (phba->cfg_sriov_nr_virtfn > 0) { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3018 There are %d virtual functions " "enabled on physical function.\n", phba->cfg_sriov_nr_virtfn); return -EEXIST; } if (val <= LPFC_MAX_VFN_PER_PFN) phba->cfg_sriov_nr_virtfn = val; else { lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3019 Enabling %d virtual functions is not " "allowed.\n", val); return -EINVAL; } rc = lpfc_sli_probe_sriov_nr_virtfn(phba, phba->cfg_sriov_nr_virtfn); if (rc) { phba->cfg_sriov_nr_virtfn = 0; rc = -EPERM; } else rc = strlen(buf); return rc; } LPFC_ATTR(sriov_nr_virtfn, LPFC_DEF_VFN_PER_PFN, 0, LPFC_MAX_VFN_PER_PFN, "Enable PCIe device SR-IOV virtual fn"); lpfc_param_show(sriov_nr_virtfn) static DEVICE_ATTR_RW(lpfc_sriov_nr_virtfn); /** * lpfc_request_firmware_upgrade_store - Request for Linux generic firmware upgrade * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: containing the string the number of vfs to be enabled. * @count: unused variable. * * Description: * * Returns: * length of the buf on success if val is in range the intended mode * is supported. * -EINVAL if val out of range or intended mode is not supported. **/ static ssize_t lpfc_request_firmware_upgrade_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; int val = 0, rc; /* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; if (val != 1) return -EINVAL; rc = lpfc_sli4_request_firmware_update(phba, RUN_FW_UPGRADE); if (rc) rc = -EPERM; else rc = strlen(buf); return rc; } static int lpfc_req_fw_upgrade; module_param(lpfc_req_fw_upgrade, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(lpfc_req_fw_upgrade, "Enable Linux generic firmware upgrade"); lpfc_param_show(request_firmware_upgrade) /** * lpfc_request_firmware_upgrade_init - Enable initial linux generic fw upgrade * @phba: lpfc_hba pointer. * @val: 0 or 1. * * Description: * Set the initial Linux generic firmware upgrade enable or disable flag. * * Returns: * zero if val saved. * -EINVAL val out of range **/ static int lpfc_request_firmware_upgrade_init(struct lpfc_hba *phba, int val) { if (val >= 0 && val <= 1) { phba->cfg_request_firmware_upgrade = val; return 0; } return -EINVAL; } static DEVICE_ATTR(lpfc_req_fw_upgrade, S_IRUGO | S_IWUSR, lpfc_request_firmware_upgrade_show, lpfc_request_firmware_upgrade_store); /** * lpfc_force_rscn_store * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: unused string * @count: unused variable. * * Description: * Force the switch to send a RSCN to all other NPorts in our zone * If we are direct connect pt2pt, build the RSCN command ourself * and send to the other NPort. Not supported for private loop. * * Returns: * 0 - on success * -EIO - if command is not sent **/ static ssize_t lpfc_force_rscn_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; int i; i = lpfc_issue_els_rscn(vport, 0); if (i) return -EIO; return strlen(buf); } /* * lpfc_force_rscn: Force an RSCN to be sent to all remote NPorts * connected to the HBA. * * Value range is any ascii value */ static int lpfc_force_rscn; module_param(lpfc_force_rscn, int, 0644); MODULE_PARM_DESC(lpfc_force_rscn, "Force an RSCN to be sent to all remote NPorts"); lpfc_param_show(force_rscn) /** * lpfc_force_rscn_init - Force an RSCN to be sent to all remote NPorts * @phba: lpfc_hba pointer. * @val: unused value. * * Returns: * zero if val saved. **/ static int lpfc_force_rscn_init(struct lpfc_hba *phba, int val) { return 0; } static DEVICE_ATTR_RW(lpfc_force_rscn); /** * lpfc_fcp_imax_store * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: string with the number of fast-path FCP interrupts per second. * @count: unused variable. * * Description: * If val is in a valid range [636,651042], then set the adapter's * maximum number of fast-path FCP interrupts per second. * * Returns: * length of the buf on success if val is in range the intended mode * is supported. * -EINVAL if val out of range or intended mode is not supported. **/ static ssize_t lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_eq_intr_info *eqi; uint32_t usdelay; int val = 0, i; /* fcp_imax is only valid for SLI4 */ if (phba->sli_rev != LPFC_SLI_REV4) return -EINVAL; /* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (sscanf(buf, "%i", &val) != 1) return -EINVAL; /* * Value range for the HBA is [5000,5000000] * The value for each EQ depends on how many EQs are configured. * Allow value == 0 */ if (val && (val < LPFC_MIN_IMAX || val > LPFC_MAX_IMAX)) return -EINVAL; phba->cfg_auto_imax = (val) ? 0 : 1; if (phba->cfg_fcp_imax && !val) { queue_delayed_work(phba->wq, &phba->eq_delay_work, msecs_to_jiffies(LPFC_EQ_DELAY_MSECS)); for_each_present_cpu(i) { eqi = per_cpu_ptr(phba->sli4_hba.eq_info, i); eqi->icnt = 0; } } phba->cfg_fcp_imax = (uint32_t)val; if (phba->cfg_fcp_imax) usdelay = LPFC_SEC_TO_USEC / phba->cfg_fcp_imax; else usdelay = 0; for (i = 0; i < phba->cfg_irq_chann; i += LPFC_MAX_EQ_DELAY_EQID_CNT) lpfc_modify_hba_eq_delay(phba, i, LPFC_MAX_EQ_DELAY_EQID_CNT, usdelay); return strlen(buf); } /* # lpfc_fcp_imax: The maximum number of fast-path FCP interrupts per second # for the HBA. # # Value range is [5,000 to 5,000,000]. Default value is 50,000. */ static int lpfc_fcp_imax = LPFC_DEF_IMAX; module_param(lpfc_fcp_imax, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(lpfc_fcp_imax, "Set the maximum number of FCP interrupts per second per HBA"); lpfc_param_show(fcp_imax) /** * lpfc_fcp_imax_init - Set the initial sr-iov virtual function enable * @phba: lpfc_hba pointer. * @val: link speed value. * * Description: * If val is in a valid range [636,651042], then initialize the adapter's * maximum number of fast-path FCP interrupts per second. * * Returns: * zero if val saved. * -EINVAL val out of range **/ static int lpfc_fcp_imax_init(struct lpfc_hba *phba, int val) { if (phba->sli_rev != LPFC_SLI_REV4) { phba->cfg_fcp_imax = 0; return 0; } if ((val >= LPFC_MIN_IMAX && val <= LPFC_MAX_IMAX) || (val == 0)) { phba->cfg_fcp_imax = val; return 0; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3016 lpfc_fcp_imax: %d out of range, using default\n", val); phba->cfg_fcp_imax = LPFC_DEF_IMAX; return 0; } static DEVICE_ATTR_RW(lpfc_fcp_imax); /** * lpfc_cq_max_proc_limit_store * * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: string with the cq max processing limit of cqes * @count: unused variable. * * Description: * If val is in a valid range, then set value on each cq * * Returns: * The length of the buf: if successful * -ERANGE: if val is not in the valid range * -EINVAL: if bad value format or intended mode is not supported. **/ static ssize_t lpfc_cq_max_proc_limit_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_queue *eq, *cq; unsigned long val; int i; /* cq_max_proc_limit is only valid for SLI4 */ if (phba->sli_rev != LPFC_SLI_REV4) return -EINVAL; /* Sanity check on user data */ if (!isdigit(buf[0])) return -EINVAL; if (kstrtoul(buf, 0, &val)) return -EINVAL; if (val < LPFC_CQ_MIN_PROC_LIMIT || val > LPFC_CQ_MAX_PROC_LIMIT) return -ERANGE; phba->cfg_cq_max_proc_limit = (uint32_t)val; /* set the values on the cq's */ for (i = 0; i < phba->cfg_irq_chann; i++) { /* Get the EQ corresponding to the IRQ vector */ eq = phba->sli4_hba.hba_eq_hdl[i].eq; if (!eq) continue; list_for_each_entry(cq, &eq->child_list, list) cq->max_proc_limit = min(phba->cfg_cq_max_proc_limit, cq->entry_count); } return strlen(buf); } /* * lpfc_cq_max_proc_limit: The maximum number CQE entries processed in an * itteration of CQ processing. */ static int lpfc_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; module_param(lpfc_cq_max_proc_limit, int, 0644); MODULE_PARM_DESC(lpfc_cq_max_proc_limit, "Set the maximum number CQEs processed in an iteration of " "CQ processing"); lpfc_param_show(cq_max_proc_limit) /* * lpfc_cq_poll_threshold: Set the threshold of CQE completions in a * single handler call which should request a polled completion rather * than re-enabling interrupts. */ LPFC_ATTR_RW(cq_poll_threshold, LPFC_CQ_DEF_THRESHOLD_TO_POLL, LPFC_CQ_MIN_THRESHOLD_TO_POLL, LPFC_CQ_MAX_THRESHOLD_TO_POLL, "CQE Processing Threshold to enable Polling"); /** * lpfc_cq_max_proc_limit_init - Set the initial cq max_proc_limit * @phba: lpfc_hba pointer. * @val: entry limit * * Description: * If val is in a valid range, then initialize the adapter's maximum * value. * * Returns: * Always returns 0 for success, even if value not always set to * requested value. If value out of range or not supported, will fall * back to default. **/ static int lpfc_cq_max_proc_limit_init(struct lpfc_hba *phba, int val) { phba->cfg_cq_max_proc_limit = LPFC_CQ_DEF_MAX_PROC_LIMIT; if (phba->sli_rev != LPFC_SLI_REV4) return 0; if (val >= LPFC_CQ_MIN_PROC_LIMIT && val <= LPFC_CQ_MAX_PROC_LIMIT) { phba->cfg_cq_max_proc_limit = val; return 0; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0371 lpfc_cq_max_proc_limit: %d out of range, using " "default\n", phba->cfg_cq_max_proc_limit); return 0; } static DEVICE_ATTR_RW(lpfc_cq_max_proc_limit); /** * lpfc_fcp_cpu_map_show - Display current driver CPU affinity * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains text describing the state of the link. * * Returns: size of formatted string. **/ static ssize_t lpfc_fcp_cpu_map_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_vector_map_info *cpup; int len = 0; if ((phba->sli_rev != LPFC_SLI_REV4) || (phba->intr_type != MSIX)) return len; switch (phba->cfg_fcp_cpu_map) { case 0: len += scnprintf(buf + len, PAGE_SIZE-len, "fcp_cpu_map: No mapping (%d)\n", phba->cfg_fcp_cpu_map); return len; case 1: len += scnprintf(buf + len, PAGE_SIZE-len, "fcp_cpu_map: HBA centric mapping (%d): " "%d of %d CPUs online from %d possible CPUs\n", phba->cfg_fcp_cpu_map, num_online_cpus(), num_present_cpus(), phba->sli4_hba.num_possible_cpu); break; } while (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_possible_cpu) { cpup = &phba->sli4_hba.cpu_map[phba->sli4_hba.curr_disp_cpu]; if (!cpu_present(phba->sli4_hba.curr_disp_cpu)) len += scnprintf(buf + len, PAGE_SIZE - len, "CPU %02d not present\n", phba->sli4_hba.curr_disp_cpu); else if (cpup->eq == LPFC_VECTOR_MAP_EMPTY) { if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) len += scnprintf( buf + len, PAGE_SIZE - len, "CPU %02d hdwq None " "physid %d coreid %d ht %d ua %d\n", phba->sli4_hba.curr_disp_cpu, cpup->phys_id, cpup->core_id, (cpup->flag & LPFC_CPU_MAP_HYPER), (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); else len += scnprintf( buf + len, PAGE_SIZE - len, "CPU %02d EQ None hdwq %04d " "physid %d coreid %d ht %d ua %d\n", phba->sli4_hba.curr_disp_cpu, cpup->hdwq, cpup->phys_id, cpup->core_id, (cpup->flag & LPFC_CPU_MAP_HYPER), (cpup->flag & LPFC_CPU_MAP_UNASSIGN)); } else { if (cpup->hdwq == LPFC_VECTOR_MAP_EMPTY) len += scnprintf( buf + len, PAGE_SIZE - len, "CPU %02d hdwq None " "physid %d coreid %d ht %d ua %d IRQ %d\n", phba->sli4_hba.curr_disp_cpu, cpup->phys_id, cpup->core_id, (cpup->flag & LPFC_CPU_MAP_HYPER), (cpup->flag & LPFC_CPU_MAP_UNASSIGN), lpfc_get_irq(cpup->eq)); else len += scnprintf( buf + len, PAGE_SIZE - len, "CPU %02d EQ %04d hdwq %04d " "physid %d coreid %d ht %d ua %d IRQ %d\n", phba->sli4_hba.curr_disp_cpu, cpup->eq, cpup->hdwq, cpup->phys_id, cpup->core_id, (cpup->flag & LPFC_CPU_MAP_HYPER), (cpup->flag & LPFC_CPU_MAP_UNASSIGN), lpfc_get_irq(cpup->eq)); } phba->sli4_hba.curr_disp_cpu++; /* display max number of CPUs keeping some margin */ if (phba->sli4_hba.curr_disp_cpu < phba->sli4_hba.num_possible_cpu && (len >= (PAGE_SIZE - 64))) { len += scnprintf(buf + len, PAGE_SIZE - len, "more...\n"); break; } } if (phba->sli4_hba.curr_disp_cpu == phba->sli4_hba.num_possible_cpu) phba->sli4_hba.curr_disp_cpu = 0; return len; } /** * lpfc_fcp_cpu_map_store - Change CPU affinity of driver vectors * @dev: class device that is converted into a Scsi_host. * @attr: device attribute, not used. * @buf: one or more lpfc_polling_flags values. * @count: not used. * * Returns: * -EINVAL - Not implemented yet. **/ static ssize_t lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { return -EINVAL; } /* # lpfc_fcp_cpu_map: Defines how to map CPUs to IRQ vectors # for the HBA. # # Value range is [0 to 1]. Default value is LPFC_HBA_CPU_MAP (1). # 0 - Do not affinitze IRQ vectors # 1 - Affintize HBA vectors with respect to each HBA # (start with CPU0 for each HBA) # This also defines how Hardware Queues are mapped to specific CPUs. */ static int lpfc_fcp_cpu_map = LPFC_HBA_CPU_MAP; module_param(lpfc_fcp_cpu_map, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(lpfc_fcp_cpu_map, "Defines how to map CPUs to IRQ vectors per HBA"); /** * lpfc_fcp_cpu_map_init - Set the initial sr-iov virtual function enable * @phba: lpfc_hba pointer. * @val: link speed value. * * Description: * If val is in a valid range [0-2], then affinitze the adapter's * MSIX vectors. * * Returns: * zero if val saved. * -EINVAL val out of range **/ static int lpfc_fcp_cpu_map_init(struct lpfc_hba *phba, int val) { if (phba->sli_rev != LPFC_SLI_REV4) { phba->cfg_fcp_cpu_map = 0; return 0; } if (val >= LPFC_MIN_CPU_MAP && val <= LPFC_MAX_CPU_MAP) { phba->cfg_fcp_cpu_map = val; return 0; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "3326 lpfc_fcp_cpu_map: %d out of range, using " "default\n", val); phba->cfg_fcp_cpu_map = LPFC_HBA_CPU_MAP; return 0; } static DEVICE_ATTR_RW(lpfc_fcp_cpu_map); /* # lpfc_fcp_class: Determines FC class to use for the FCP protocol. # Value range is [2,3]. Default value is 3. */ LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, "Select Fibre Channel class of service for FCP sequences"); /* # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range # is [0,1]. Default value is 1. */ LPFC_VPORT_ATTR_RW(use_adisc, 1, 0, 1, "Use ADISC on rediscovery to authenticate FCP devices"); /* # lpfc_first_burst_size: First burst size to use on the NPorts # that support first burst. # Value range is [0,65536]. Default value is 0. */ LPFC_VPORT_ATTR_RW(first_burst_size, 0, 0, 65536, "First burst size for Targets that support first burst"); /* * lpfc_nvmet_fb_size: NVME Target mode supported first burst size. * When the driver is configured as an NVME target, this value is * communicated to the NVME initiator in the PRLI response. It is * used only when the lpfc_nvme_enable_fb and lpfc_nvmet_support * parameters are set and the target is sending the PRLI RSP. * Parameter supported on physical port only - no NPIV support. * Value range is [0,65536]. Default value is 0. */ LPFC_ATTR_RW(nvmet_fb_size, 0, 0, 65536, "NVME Target mode first burst size in 512B increments."); /* * lpfc_nvme_enable_fb: Enable NVME first burst on I and T functions. * For the Initiator (I), enabling this parameter means that an NVMET * PRLI response with FBA enabled and an FB_SIZE set to a nonzero value will be * processed by the initiator for subsequent NVME FCP IO. * Currently, this feature is not supported on the NVME target * Value range is [0,1]. Default value is 0 (disabled). */ LPFC_ATTR_RW(nvme_enable_fb, 0, 0, 1, "Enable First Burst feature for NVME Initiator."); /* # lpfc_max_scsicmpl_time: Use scsi command completion time to control I/O queue # depth. Default value is 0. When the value of this parameter is zero the # SCSI command completion time is not used for controlling I/O queue depth. When # the parameter is set to a non-zero value, the I/O queue depth is controlled # to limit the I/O completion time to the parameter value. # The value is set in milliseconds. */ LPFC_VPORT_ATTR(max_scsicmpl_time, 0, 0, 60000, "Use command completion time to control queue depth"); lpfc_vport_param_show(max_scsicmpl_time); static int lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) { struct lpfc_nodelist *ndlp, *next_ndlp; unsigned long iflags; if (val == vport->cfg_max_scsicmpl_time) return 0; if ((val < 0) || (val > 60000)) return -EINVAL; vport->cfg_max_scsicmpl_time = val; spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) continue; ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; } spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); return 0; } lpfc_vport_param_store(max_scsicmpl_time); static DEVICE_ATTR_RW(lpfc_max_scsicmpl_time); /* # lpfc_ack0: Use ACK0, instead of ACK1 for class 2 acknowledgement. Value # range is [0,1]. Default value is 0. */ LPFC_ATTR_R(ack0, 0, 0, 1, "Enable ACK0 support"); /* # lpfc_xri_rebalancing: enable or disable XRI rebalancing feature # range is [0,1]. Default value is 1. */ LPFC_ATTR_R(xri_rebalancing, 1, 0, 1, "Enable/Disable XRI rebalancing"); /* * lpfc_io_sched: Determine scheduling algrithmn for issuing FCP cmds * range is [0,1]. Default value is 0. * For [0], FCP commands are issued to Work Queues based on upper layer * hardware queue index. * For [1], FCP commands are issued to a Work Queue associated with the * current CPU. * * LPFC_FCP_SCHED_BY_HDWQ == 0 * LPFC_FCP_SCHED_BY_CPU == 1 * * The driver dynamically sets this to 1 (BY_CPU) if it's able to set up cpu * affinity for FCP/NVME I/Os through Work Queues associated with the current * CPU. Otherwise, the default 0 (Round Robin) scheduling of FCP/NVME I/Os * through WQs will be used. */ LPFC_ATTR_RW(fcp_io_sched, LPFC_FCP_SCHED_BY_CPU, LPFC_FCP_SCHED_BY_HDWQ, LPFC_FCP_SCHED_BY_CPU, "Determine scheduling algorithm for " "issuing commands [0] - Hardware Queue, [1] - Current CPU"); /* * lpfc_ns_query: Determine algrithmn for NameServer queries after RSCN * range is [0,1]. Default value is 0. * For [0], GID_FT is used for NameServer queries after RSCN (default) * For [1], GID_PT is used for NameServer queries after RSCN * */ LPFC_ATTR_RW(ns_query, LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_FT, LPFC_NS_QUERY_GID_PT, "Determine algorithm NameServer queries after RSCN " "[0] - GID_FT, [1] - GID_PT"); /* # lpfc_fcp2_no_tgt_reset: Determine bus reset behavior # range is [0,1]. Default value is 0. # For [0], bus reset issues target reset to ALL devices # For [1], bus reset issues target reset to non-FCP2 devices */ LPFC_ATTR_RW(fcp2_no_tgt_reset, 0, 0, 1, "Determine bus reset behavior for " "FCP2 devices [0] - issue tgt reset, [1] - no tgt reset"); /* # lpfc_cr_delay & lpfc_cr_count: Default values for I/O colaesing # cr_delay (msec) or cr_count outstanding commands. cr_delay can take # value [0,63]. cr_count can take value [1,255]. Default value of cr_delay # is 0. Default value of cr_count is 1. The cr_count feature is disabled if # cr_delay is set to 0. */ LPFC_ATTR_RW(cr_delay, 0, 0, 63, "A count of milliseconds after which an " "interrupt response is generated"); LPFC_ATTR_RW(cr_count, 1, 1, 255, "A count of I/O completions after which an " "interrupt response is generated"); /* # lpfc_multi_ring_support: Determines how many rings to spread available # cmd/rsp IOCB entries across. # Value range is [1,2]. Default value is 1. */ LPFC_ATTR_R(multi_ring_support, 1, 1, 2, "Determines number of primary " "SLI rings to spread IOCB entries across"); /* # lpfc_multi_ring_rctl: If lpfc_multi_ring_support is enabled, this # identifies what rctl value to configure the additional ring for. # Value range is [1,0xff]. Default value is 4 (Unsolicated Data). */ LPFC_ATTR_R(multi_ring_rctl, FC_RCTL_DD_UNSOL_DATA, 1, 255, "Identifies RCTL for additional ring configuration"); /* # lpfc_multi_ring_type: If lpfc_multi_ring_support is enabled, this # identifies what type value to configure the additional ring for. # Value range is [1,0xff]. Default value is 5 (LLC/SNAP). */ LPFC_ATTR_R(multi_ring_type, FC_TYPE_IP, 1, 255, "Identifies TYPE for additional ring configuration"); /* # lpfc_enable_SmartSAN: Sets up FDMI support for SmartSAN # 0 = SmartSAN functionality disabled (default) # 1 = SmartSAN functionality enabled # This parameter will override the value of lpfc_fdmi_on module parameter. # Value range is [0,1]. Default value is 0. */ LPFC_ATTR_R(enable_SmartSAN, 0, 0, 1, "Enable SmartSAN functionality"); /* # lpfc_fdmi_on: Controls FDMI support. # 0 No FDMI support # 1 Traditional FDMI support (default) # Traditional FDMI support means the driver will assume FDMI-2 support; # however, if that fails, it will fallback to FDMI-1. # If lpfc_enable_SmartSAN is set to 1, the driver ignores lpfc_fdmi_on. # If lpfc_enable_SmartSAN is set 0, the driver uses the current value of # lpfc_fdmi_on. # Value range [0,1]. Default value is 1. */ LPFC_ATTR_R(fdmi_on, 1, 0, 1, "Enable FDMI support"); /* # Specifies the maximum number of ELS cmds we can have outstanding (for # discovery). Value range is [1,64]. Default value = 32. */ LPFC_VPORT_ATTR(discovery_threads, 32, 1, 64, "Maximum number of ELS commands " "during discovery"); /* # lpfc_max_luns: maximum allowed LUN ID. This is the highest LUN ID that # will be scanned by the SCSI midlayer when sequential scanning is # used; and is also the highest LUN ID allowed when the SCSI midlayer # parses REPORT_LUN responses. The lpfc driver has no LUN count or # LUN ID limit, but the SCSI midlayer requires this field for the uses # above. The lpfc driver limits the default value to 255 for two reasons. # As it bounds the sequential scan loop, scanning for thousands of luns # on a target can take minutes of wall clock time. Additionally, # there are FC targets, such as JBODs, that only recognize 8-bits of # LUN ID. When they receive a value greater than 8 bits, they chop off # the high order bits. In other words, they see LUN IDs 0, 256, 512, # and so on all as LUN ID 0. This causes the linux kernel, which sees # valid responses at each of the LUN IDs, to believe there are multiple # devices present, when in fact, there is only 1. # A customer that is aware of their target behaviors, and the results as # indicated above, is welcome to increase the lpfc_max_luns value. # As mentioned, this value is not used by the lpfc driver, only the # SCSI midlayer. # Value range is [0,65535]. Default value is 255. # NOTE: The SCSI layer might probe all allowed LUN on some old targets. */ LPFC_VPORT_ULL_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN ID"); /* # lpfc_poll_tmo: .Milliseconds driver will wait between polling FCP ring. # Value range is [1,255], default value is 10. */ LPFC_ATTR_RW(poll_tmo, 10, 1, 255, "Milliseconds driver will wait between polling FCP ring"); /* # lpfc_task_mgmt_tmo: Maximum time to wait for task management commands # to complete in seconds. Value range is [5,180], default value is 60. */ LPFC_ATTR_RW(task_mgmt_tmo, 60, 5, 180, "Maximum time to wait for task management commands to complete"); /* # lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that # support this feature # 0 = MSI disabled # 1 = MSI enabled # 2 = MSI-X enabled (default) # Value range is [0,2]. Default value is 2. */ LPFC_ATTR_R(use_msi, 2, 0, 2, "Use Message Signaled Interrupts (1) or " "MSI-X (2), if possible"); /* * lpfc_nvme_oas: Use the oas bit when sending NVME/NVMET IOs * * 0 = NVME OAS disabled * 1 = NVME OAS enabled * * Value range is [0,1]. Default value is 0. */ LPFC_ATTR_RW(nvme_oas, 0, 0, 1, "Use OAS bit on NVME IOs"); /* * lpfc_nvme_embed_cmd: Use the oas bit when sending NVME/NVMET IOs * * 0 = Put NVME Command in SGL * 1 = Embed NVME Command in WQE (unless G7) * 2 = Embed NVME Command in WQE (force) * * Value range is [0,2]. Default value is 1. */ LPFC_ATTR_RW(nvme_embed_cmd, 1, 0, 2, "Embed NVME Command in WQE"); /* * lpfc_fcp_mq_threshold: Set the maximum number of Hardware Queues * the driver will advertise it supports to the SCSI layer. * * 0 = Set nr_hw_queues by the number of CPUs or HW queues. * 1,256 = Manually specify nr_hw_queue value to be advertised, * * Value range is [0,256]. Default value is 8. */ LPFC_ATTR_R(fcp_mq_threshold, LPFC_FCP_MQ_THRESHOLD_DEF, LPFC_FCP_MQ_THRESHOLD_MIN, LPFC_FCP_MQ_THRESHOLD_MAX, "Set the number of SCSI Queues advertised"); /* * lpfc_hdw_queue: Set the number of Hardware Queues the driver * will advertise it supports to the NVME and SCSI layers. This also * will map to the number of CQ/WQ pairs the driver will create. * * The NVME Layer will try to create this many, plus 1 administrative * hardware queue. The administrative queue will always map to WQ 0 * A hardware IO queue maps (qidx) to a specific driver CQ/WQ. * * 0 = Configure the number of hdw queues to the number of active CPUs. * 1,256 = Manually specify how many hdw queues to use. * * Value range is [0,256]. Default value is 0. */ LPFC_ATTR_R(hdw_queue, LPFC_HBA_HDWQ_DEF, LPFC_HBA_HDWQ_MIN, LPFC_HBA_HDWQ_MAX, "Set the number of I/O Hardware Queues"); #if IS_ENABLED(CONFIG_X86) /** * lpfc_cpumask_irq_mode_init - initalizes cpumask of phba based on * irq_chann_mode * @phba: Pointer to HBA context object. **/ static void lpfc_cpumask_irq_mode_init(struct lpfc_hba *phba) { unsigned int cpu, first_cpu, numa_node = NUMA_NO_NODE; const struct cpumask *sibling_mask; struct cpumask *aff_mask = &phba->sli4_hba.irq_aff_mask; cpumask_clear(aff_mask); if (phba->irq_chann_mode == NUMA_MODE) { /* Check if we're a NUMA architecture */ numa_node = dev_to_node(&phba->pcidev->dev); if (numa_node == NUMA_NO_NODE) { phba->irq_chann_mode = NORMAL_MODE; return; } } for_each_possible_cpu(cpu) { switch (phba->irq_chann_mode) { case NUMA_MODE: if (cpu_to_node(cpu) == numa_node) cpumask_set_cpu(cpu, aff_mask); break; case NHT_MODE: sibling_mask = topology_sibling_cpumask(cpu); first_cpu = cpumask_first(sibling_mask); if (first_cpu < nr_cpu_ids) cpumask_set_cpu(first_cpu, aff_mask); break; default: break; } } } #endif static void lpfc_assign_default_irq_chann(struct lpfc_hba *phba) { #if IS_ENABLED(CONFIG_X86) switch (boot_cpu_data.x86_vendor) { case X86_VENDOR_AMD: /* If AMD architecture, then default is NUMA_MODE */ phba->irq_chann_mode = NUMA_MODE; break; case X86_VENDOR_INTEL: /* If Intel architecture, then default is no hyperthread mode */ phba->irq_chann_mode = NHT_MODE; break; default: phba->irq_chann_mode = NORMAL_MODE; break; } lpfc_cpumask_irq_mode_init(phba); #else phba->irq_chann_mode = NORMAL_MODE; #endif } /* * lpfc_irq_chann: Set the number of IRQ vectors that are available * for Hardware Queues to utilize. This also will map to the number * of EQ / MSI-X vectors the driver will create. This should never be * more than the number of Hardware Queues * * 0 = Configure number of IRQ Channels to: * if AMD architecture, number of CPUs on HBA's NUMA node * if Intel architecture, number of physical CPUs. * otherwise, number of active CPUs. * [1,256] = Manually specify how many IRQ Channels to use. * * Value range is [0,256]. Default value is [0]. */ static uint lpfc_irq_chann = LPFC_IRQ_CHANN_DEF; module_param(lpfc_irq_chann, uint, 0444); MODULE_PARM_DESC(lpfc_irq_chann, "Set number of interrupt vectors to allocate"); /* lpfc_irq_chann_init - Set the hba irq_chann initial value * @phba: lpfc_hba pointer. * @val: contains the initial value * * Description: * Validates the initial value is within range and assigns it to the * adapter. If not in range, an error message is posted and the * default value is assigned. * * Returns: * zero if value is in range and is set * -EINVAL if value was out of range **/ static int lpfc_irq_chann_init(struct lpfc_hba *phba, uint32_t val) { const struct cpumask *aff_mask; if (phba->cfg_use_msi != 2) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8532 use_msi = %u ignoring cfg_irq_numa\n", phba->cfg_use_msi); phba->irq_chann_mode = NORMAL_MODE; phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; return 0; } /* Check if default setting was passed */ if (val == LPFC_IRQ_CHANN_DEF && phba->cfg_hdw_queue == LPFC_HBA_HDWQ_DEF && phba->sli_rev == LPFC_SLI_REV4) lpfc_assign_default_irq_chann(phba); if (phba->irq_chann_mode != NORMAL_MODE) { aff_mask = &phba->sli4_hba.irq_aff_mask; if (cpumask_empty(aff_mask)) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8533 Could not identify CPUS for " "mode %d, ignoring\n", phba->irq_chann_mode); phba->irq_chann_mode = NORMAL_MODE; phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; } else { phba->cfg_irq_chann = cpumask_weight(aff_mask); /* If no hyperthread mode, then set hdwq count to * aff_mask weight as well */ if (phba->irq_chann_mode == NHT_MODE) phba->cfg_hdw_queue = phba->cfg_irq_chann; lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8543 lpfc_irq_chann set to %u " "(mode: %d)\n", phba->cfg_irq_chann, phba->irq_chann_mode); } } else { if (val > LPFC_IRQ_CHANN_MAX) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "8545 lpfc_irq_chann attribute cannot " "be set to %u, allowed range is " "[%u,%u]\n", val, LPFC_IRQ_CHANN_MIN, LPFC_IRQ_CHANN_MAX); phba->cfg_irq_chann = LPFC_IRQ_CHANN_DEF; return -EINVAL; } if (phba->sli_rev == LPFC_SLI_REV4) { phba->cfg_irq_chann = val; } else { phba->cfg_irq_chann = 2; phba->cfg_hdw_queue = 1; } } return 0; } /** * lpfc_irq_chann_show - Display value of irq_chann * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains a string with the list sizes * * Returns: size of formatted string. **/ static ssize_t lpfc_irq_chann_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; return scnprintf(buf, PAGE_SIZE, "%u\n", phba->cfg_irq_chann); } static DEVICE_ATTR_RO(lpfc_irq_chann); /* # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. # 0 = HBA resets disabled # 1 = HBA resets enabled (default) # 2 = HBA reset via PCI bus reset enabled # Value range is [0,2]. Default value is 1. */ LPFC_ATTR_RW(enable_hba_reset, 1, 0, 2, "Enable HBA resets from the driver."); /* # lpfc_enable_hba_heartbeat: Disable HBA heartbeat timer.. # 0 = HBA Heartbeat disabled # 1 = HBA Heartbeat enabled (default) # Value range is [0,1]. Default value is 1. */ LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat."); /* # lpfc_EnableXLane: Enable Express Lane Feature # 0x0 Express Lane Feature disabled # 0x1 Express Lane Feature enabled # Value range is [0,1]. Default value is 0. */ LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature."); /* # lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature # 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits) # Value range is [0x0,0x7f]. Default value is 0 */ LPFC_ATTR_RW(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature."); /* # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) # 0 = BlockGuard disabled (default) # 1 = BlockGuard enabled # Value range is [0,1]. Default value is 0. */ LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); /* # lpfc_prot_mask: # - Bit mask of host protection capabilities used to register with the # SCSI mid-layer # - Only meaningful if BG is turned on (lpfc_enable_bg=1). # - Allows you to ultimately specify which profiles to use # - Default will result in registering capabilities for all profiles. # - SHOST_DIF_TYPE1_PROTECTION 1 # HBA supports T10 DIF Type 1: HBA to Target Type 1 Protection # - SHOST_DIX_TYPE0_PROTECTION 8 # HBA supports DIX Type 0: Host to HBA protection only # - SHOST_DIX_TYPE1_PROTECTION 16 # HBA supports DIX Type 1: Host to HBA Type 1 protection # */ LPFC_ATTR(prot_mask, (SHOST_DIF_TYPE1_PROTECTION | SHOST_DIX_TYPE0_PROTECTION | SHOST_DIX_TYPE1_PROTECTION), 0, (SHOST_DIF_TYPE1_PROTECTION | SHOST_DIX_TYPE0_PROTECTION | SHOST_DIX_TYPE1_PROTECTION), "T10-DIF host protection capabilities mask"); /* # lpfc_prot_guard: # - Bit mask of protection guard types to register with the SCSI mid-layer # - Guard types are currently either 1) T10-DIF CRC 2) IP checksum # - Allows you to ultimately specify which profiles to use # - Default will result in registering capabilities for all guard types # */ LPFC_ATTR(prot_guard, SHOST_DIX_GUARD_IP, SHOST_DIX_GUARD_CRC, SHOST_DIX_GUARD_IP, "T10-DIF host protection guard type"); /* * Delay initial NPort discovery when Clean Address bit is cleared in * FLOGI/FDISC accept and FCID/Fabric name/Fabric portname is changed. * This parameter can have value 0 or 1. * When this parameter is set to 0, no delay is added to the initial * discovery. * When this parameter is set to non-zero value, initial Nport discovery is * delayed by ra_tov seconds when Clean Address bit is cleared in FLOGI/FDISC * accept and FCID/Fabric name/Fabric portname is changed. * Driver always delay Nport discovery for subsequent FLOGI/FDISC completion * when Clean Address bit is cleared in FLOGI/FDISC * accept and FCID/Fabric name/Fabric portname is changed. * Default value is 0. */ LPFC_ATTR(delay_discovery, 0, 0, 1, "Delay NPort discovery when Clean Address bit is cleared."); /* * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count * This value can be set to values between 64 and 4096. The default value * is 64, but may be increased to allow for larger Max I/O sizes. The scsi * and nvme layers will allow I/O sizes up to (MAX_SEG_COUNT * SEG_SIZE). * Because of the additional overhead involved in setting up T10-DIF, * this parameter will be limited to 128 if BlockGuard is enabled under SLI4 * and will be limited to 512 if BlockGuard is enabled under SLI3. */ static uint lpfc_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; module_param(lpfc_sg_seg_cnt, uint, 0444); MODULE_PARM_DESC(lpfc_sg_seg_cnt, "Max Scatter Gather Segment Count"); /** * lpfc_sg_seg_cnt_show - Display the scatter/gather list sizes * configured for the adapter * @dev: class converted to a Scsi_host structure. * @attr: device attribute, not used. * @buf: on return contains a string with the list sizes * * Returns: size of formatted string. **/ static ssize_t lpfc_sg_seg_cnt_show(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; struct lpfc_hba *phba = vport->phba; int len; len = scnprintf(buf, PAGE_SIZE, "SGL sz: %d total SGEs: %d\n", phba->cfg_sg_dma_buf_size, phba->cfg_total_seg_cnt); len += scnprintf(buf + len, PAGE_SIZE - len, "Cfg: %d SCSI: %d NVME: %d\n", phba->cfg_sg_seg_cnt, phba->cfg_scsi_seg_cnt, phba->cfg_nvme_seg_cnt); return len; } static DEVICE_ATTR_RO(lpfc_sg_seg_cnt); /** * lpfc_sg_seg_cnt_init - Set the hba sg_seg_cnt initial value * @phba: lpfc_hba pointer. * @val: contains the initial value * * Description: * Validates the initial value is within range and assigns it to the * adapter. If not in range, an error message is posted and the * default value is assigned. * * Returns: * zero if value is in range and is set * -EINVAL if value was out of range **/ static int lpfc_sg_seg_cnt_init(struct lpfc_hba *phba, int val) { if (val >= LPFC_MIN_SG_SEG_CNT && val <= LPFC_MAX_SG_SEG_CNT) { phba->cfg_sg_seg_cnt = val; return 0; } lpfc_printf_log(phba, KERN_ERR, LOG_INIT, "0409 lpfc_sg_seg_cnt attribute cannot be set to %d, " "allowed range is [%d, %d]\n", val, LPFC_MIN_SG_SEG_CNT, LPFC_MAX_SG_SEG_CNT); phba->cfg_sg_seg_cnt = LPFC_DEFAULT_SG_SEG_CNT; return -EINVAL; } /* * lpfc_enable_mds_diags: Enable MDS Diagnostics * 0 = MDS Diagnostics disabled (default) * 1 = MDS Diagnostics enabled * Value range is [0,1]. Default value is 0. */ LPFC_ATTR_RW(enable_mds_diags, 0, 0, 1, "Enable MDS Diagnostics"); /* * lpfc_ras_fwlog_buffsize: Firmware logging host buffer size * 0 = Disable firmware logging (default) * [1-4] = Multiple of 1/4th Mb of host memory for FW logging * Value range [0..4]. Default value is 0 */ LPFC_ATTR(ras_fwlog_buffsize, 0, 0, 4, "Host memory for FW logging"); lpfc_param_show(ras_fwlog_buffsize); static ssize_t lpfc_ras_fwlog_buffsize_set(struct lpfc_hba *phba, uint val) { int ret = 0; enum ras_state state; if (!lpfc_rangecheck(val, 0, 4)) return -EINVAL; if (phba->cfg_ras_fwlog_buffsize == val) return 0; if (phba->cfg_ras_fwlog_func != PCI_FUNC(phba->pcidev->devfn)) return -EINVAL; spin_lock_irq(&phba->ras_fwlog_lock); state = phba->ras_fwlog.state; spin_unlock_irq(&phba->ras_fwlog_lock); if (state == REG_INPROGRESS) { lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "6147 RAS Logging " "registration is in progress\n"); return -EBUSY; } /* For disable logging: stop the logs and free the DMA. * For ras_fwlog_buffsize size change we still need to free and * reallocate the DMA in lpfc_sli4_ras_fwlog_init. */ phba->cfg_ras_fwlog_buffsize = val; if (state == ACTIVE) { lpfc_ras_stop_fwlog(phba); lpfc_sli4_ras_dma_free(phba); } lpfc_sli4_ras_init(phba); if (phba->ras_fwlog.ras_enabled) ret = lpfc_sli4_ras_fwlog_init(phba, phba->cfg_ras_fwlog_level, LPFC_RAS_ENABLE_LOGGING); return ret; } lpfc_param_store(ras_fwlog_buffsize); static DEVICE_ATTR_RW(lpfc_ras_fwlog_buffsize); /* * lpfc_ras_fwlog_level: Firmware logging verbosity level * Valid only if firmware logging is enabled * 0(Least Verbosity) 4 (most verbosity) * Value range is [0..4]. Default value is 0 */ LPFC_ATTR_RW(ras_fwlog_level, 0, 0, 4, "Firmware Logging Level"); /* * lpfc_ras_fwlog_func: Firmware logging enabled on function number * Default function which has RAS support : 0 * Value Range is [0..3]. * FW logging is a global action and enablement is via a specific * port. */ LPFC_ATTR_RW(ras_fwlog_func, 0, 0, 3, "Firmware Logging Enabled on Function"); /* * lpfc_enable_bbcr: Enable BB Credit Recovery * 0 = BB Credit Recovery disabled * 1 = BB Credit Recovery enabled (default) * Value range is [0,1]. Default value is 1. */ LPFC_BBCR_ATTR_RW(enable_bbcr, 1, 0, 1, "Enable BBC Recovery"); /* Signaling module parameters */ int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ module_param(lpfc_fabric_cgn_frequency, int, 0444); MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq"); unsigned char lpfc_acqe_cgn_frequency = 10; /* 10 sec default */ module_param(lpfc_acqe_cgn_frequency, byte, 0444); MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq"); int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail */ module_param(lpfc_use_cgn_signal, int, 0444); MODULE_PARM_DESC(lpfc_use_cgn_signal, "Use Congestion signaling if available"); /* * lpfc_enable_dpp: Enable DPP on G7 * 0 = DPP on G7 disabled * 1 = DPP on G7 enabled (default) * Value range is [0,1]. Default value is 1. */ LPFC_ATTR_RW(enable_dpp, 1, 0, 1, "Enable Direct Packet Push"); /* * lpfc_enable_mi: Enable FDMI MIB * 0 = disabled * 1 = enabled (default) * Value range is [0,1]. */ LPFC_ATTR_R(enable_mi, 1, 0, 1, "Enable MI"); /* * lpfc_max_vmid: Maximum number of VMs to be tagged. This is valid only if * either vmid_app_header or vmid_priority_tagging is enabled. * 4 - 255 = vmid support enabled for 4-255 VMs * Value range is [4,255]. */ LPFC_ATTR_R(max_vmid, LPFC_MIN_VMID, LPFC_MIN_VMID, LPFC_MAX_VMID, "Maximum number of VMs supported"); /* * lpfc_vmid_inactivity_timeout: Inactivity timeout duration in hours * 0 = Timeout is disabled * Value range is [0,24]. */ LPFC_ATTR_R(vmid_inactivity_timeout, 4, 0, 24, "Inactivity timeout in hours"); /* * lpfc_vmid_app_header: Enable App Header VMID support * 0 = Support is disabled (default) * 1 = Support is enabled * Value range is [0,1]. */ LPFC_ATTR_R(vmid_app_header, LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_DISABLE, LPFC_VMID_APP_HEADER_ENABLE, "Enable App Header VMID support"); /* * lpfc_vmid_priority_tagging: Enable Priority Tagging VMID support * 0 = Support is disabled (default) * 1 = Allow supported targets only * 2 = Allow all targets * Value range is [0,2]. */ LPFC_ATTR_R(vmid_priority_tagging, LPFC_VMID_PRIO_TAG_DISABLE, LPFC_VMID_PRIO_TAG_DISABLE, LPFC_VMID_PRIO_TAG_ALL_TARGETS, "Enable Priority Tagging VMID support"); static struct attribute *lpfc_hba_attrs[] = { &dev_attr_nvme_info.attr, &dev_attr_scsi_stat.attr, &dev_attr_bg_info.attr, &dev_attr_bg_guard_err.attr, &dev_attr_bg_apptag_err.attr, &dev_attr_bg_reftag_err.attr, &dev_attr_info.attr, &dev_attr_serialnum.attr, &dev_attr_modeldesc.attr, &dev_attr_modelname.attr, &dev_attr_programtype.attr, &dev_attr_portnum.attr, &dev_attr_fwrev.attr, &dev_attr_hdw.attr, &dev_attr_option_rom_version.attr, &dev_attr_link_state.attr, &dev_attr_num_discovered_ports.attr, &dev_attr_lpfc_drvr_version.attr, &dev_attr_lpfc_enable_fip.attr, &dev_attr_lpfc_temp_sensor.attr, &dev_attr_lpfc_log_verbose.attr, &dev_attr_lpfc_lun_queue_depth.attr, &dev_attr_lpfc_tgt_queue_depth.attr, &dev_attr_lpfc_hba_queue_depth.attr, &dev_attr_lpfc_peer_port_login.attr, &dev_attr_lpfc_nodev_tmo.attr, &dev_attr_lpfc_devloss_tmo.attr, &dev_attr_lpfc_enable_fc4_type.attr, &dev_attr_lpfc_fcp_class.attr, &dev_attr_lpfc_use_adisc.attr, &dev_attr_lpfc_first_burst_size.attr, &dev_attr_lpfc_ack0.attr, &dev_attr_lpfc_xri_rebalancing.attr, &dev_attr_lpfc_topology.attr, &dev_attr_lpfc_scan_down.attr, &dev_attr_lpfc_link_speed.attr, &dev_attr_lpfc_fcp_io_sched.attr, &dev_attr_lpfc_ns_query.attr, &dev_attr_lpfc_fcp2_no_tgt_reset.attr, &dev_attr_lpfc_cr_delay.attr, &dev_attr_lpfc_cr_count.attr, &dev_attr_lpfc_multi_ring_support.attr, &dev_attr_lpfc_multi_ring_rctl.attr, &dev_attr_lpfc_multi_ring_type.attr, &dev_attr_lpfc_fdmi_on.attr, &dev_attr_lpfc_enable_SmartSAN.attr, &dev_attr_lpfc_max_luns.attr, &dev_attr_lpfc_enable_npiv.attr, &dev_attr_lpfc_fcf_failover_policy.attr, &dev_attr_lpfc_enable_rrq.attr, &dev_attr_lpfc_fcp_wait_abts_rsp.attr, &dev_attr_nport_evt_cnt.attr, &dev_attr_board_mode.attr, &dev_attr_lpfc_xcvr_data.attr, &dev_attr_max_vpi.attr, &dev_attr_used_vpi.attr, &dev_attr_max_rpi.attr, &dev_attr_used_rpi.attr, &dev_attr_max_xri.attr, &dev_attr_used_xri.attr, &dev_attr_npiv_info.attr, &dev_attr_issue_reset.attr, &dev_attr_lpfc_poll.attr, &dev_attr_lpfc_poll_tmo.attr, &dev_attr_lpfc_task_mgmt_tmo.attr, &dev_attr_lpfc_use_msi.attr, &dev_attr_lpfc_nvme_oas.attr, &dev_attr_lpfc_nvme_embed_cmd.attr, &dev_attr_lpfc_fcp_imax.attr, &dev_attr_lpfc_force_rscn.attr, &dev_attr_lpfc_cq_poll_threshold.attr, &dev_attr_lpfc_cq_max_proc_limit.attr, &dev_attr_lpfc_fcp_cpu_map.attr, &dev_attr_lpfc_fcp_mq_threshold.attr, &dev_attr_lpfc_hdw_queue.attr, &dev_attr_lpfc_irq_chann.attr, &dev_attr_lpfc_suppress_rsp.attr, &dev_attr_lpfc_nvmet_mrq.attr, &dev_attr_lpfc_nvmet_mrq_post.attr, &dev_attr_lpfc_nvme_enable_fb.attr, &dev_attr_lpfc_nvmet_fb_size.attr, &dev_attr_lpfc_enable_bg.attr, &dev_attr_lpfc_enable_hba_reset.attr, &dev_attr_lpfc_enable_hba_heartbeat.attr, &dev_attr_lpfc_EnableXLane.attr, &dev_attr_lpfc_XLanePriority.attr, &dev_attr_lpfc_xlane_lun.attr, &dev_attr_lpfc_xlane_tgt.attr, &dev_attr_lpfc_xlane_vpt.attr, &dev_attr_lpfc_xlane_lun_state.attr, &dev_attr_lpfc_xlane_lun_status.attr, &dev_attr_lpfc_xlane_priority.attr, &dev_attr_lpfc_sg_seg_cnt.attr, &dev_attr_lpfc_max_scsicmpl_time.attr, &dev_attr_lpfc_aer_support.attr, &dev_attr_lpfc_aer_state_cleanup.attr, &dev_attr_lpfc_sriov_nr_virtfn.attr, &dev_attr_lpfc_req_fw_upgrade.attr, &dev_attr_lpfc_suppress_link_up.attr, &dev_attr_iocb_hw.attr, &dev_attr_pls.attr, &dev_attr_pt.attr, &dev_attr_txq_hw.attr, &dev_attr_txcmplq_hw.attr, &dev_attr_lpfc_sriov_hw_max_virtfn.attr, &dev_attr_protocol.attr, &dev_attr_lpfc_xlane_supported.attr, &dev_attr_lpfc_enable_mds_diags.attr, &dev_attr_lpfc_ras_fwlog_buffsize.attr, &dev_attr_lpfc_ras_fwlog_level.attr, &dev_attr_lpfc_ras_fwlog_func.attr, &dev_attr_lpfc_enable_bbcr.attr, &dev_attr_lpfc_enable_dpp.attr, &dev_attr_lpfc_enable_mi.attr, &dev_attr_cmf_info.attr, &dev_attr_lpfc_max_vmid.attr, &dev_attr_lpfc_vmid_inactivity_timeout.attr, &dev_attr_lpfc_vmid_app_header.attr, &dev_attr_lpfc_vmid_priority_tagging.attr, NULL, }; static const struct attribute_group lpfc_hba_attr_group = { .attrs = lpfc_hba_attrs }; const struct attribute_group *lpfc_hba_groups[] = { &lpfc_hba_attr_group, NULL }; static struct attribute *lpfc_vport_attrs[] = { &dev_attr_info.attr, &dev_attr_link_state.attr, &dev_attr_num_discovered_ports.attr, &dev_attr_lpfc_drvr_version.attr, &dev_attr_lpfc_log_verbose.attr, &dev_attr_lpfc_lun_queue_depth.attr, &dev_attr_lpfc_tgt_queue_depth.attr, &dev_attr_lpfc_nodev_tmo.attr, &dev_attr_lpfc_devloss_tmo.attr, &dev_attr_lpfc_hba_queue_depth.attr, &dev_attr_lpfc_peer_port_login.attr, &dev_attr_lpfc_restrict_login.attr, &dev_attr_lpfc_fcp_class.attr, &dev_attr_lpfc_use_adisc.attr, &dev_attr_lpfc_first_burst_size.attr, &dev_attr_lpfc_max_luns.attr, &dev_attr_nport_evt_cnt.attr, &dev_attr_npiv_info.attr, &dev_attr_lpfc_enable_da_id.attr, &dev_attr_lpfc_max_scsicmpl_time.attr, &dev_attr_lpfc_static_vport.attr, &dev_attr_cmf_info.attr, NULL, }; static const struct attribute_group lpfc_vport_attr_group = { .attrs = lpfc_vport_attrs }; const struct attribute_group *lpfc_vport_groups[] = { &lpfc_vport_attr_group, NULL }; /** * sysfs_ctlreg_write - Write method for writing to ctlreg * @filp: open sysfs file * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: contains the data to be written to the adapter IOREG space. * @off: offset into buffer to beginning of data. * @count: bytes to transfer. * * Description: * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. * Uses the adapter io control registers to send buf contents to the adapter. * * Returns: * -ERANGE off and count combo out of range * -EINVAL off, count or buff address invalid * -EPERM adapter is offline * value of count, buf contents written **/ static ssize_t sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { size_t buf_off; struct device *dev = container_of(kobj, struct device, kobj); struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; if (phba->sli_rev >= LPFC_SLI_REV4) return -EPERM; if ((off + count) > FF_REG_AREA_SIZE) return -ERANGE; if (count <= LPFC_REG_WRITE_KEY_SIZE) return 0; if (off % 4 || count % 4 || (unsigned long)buf % 4) return -EINVAL; /* This is to protect HBA registers from accidental writes. */ if (memcmp(buf, LPFC_REG_WRITE_KEY, LPFC_REG_WRITE_KEY_SIZE)) return -EINVAL; if (!test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) return -EPERM; spin_lock_irq(&phba->hbalock); for (buf_off = 0; buf_off < count - LPFC_REG_WRITE_KEY_SIZE; buf_off += sizeof(uint32_t)) writel(*((uint32_t *)(buf + buf_off + LPFC_REG_WRITE_KEY_SIZE)), phba->ctrl_regs_memmap_p + off + buf_off); spin_unlock_irq(&phba->hbalock); return count; } /** * sysfs_ctlreg_read - Read method for reading from ctlreg * @filp: open sysfs file * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: if successful contains the data from the adapter IOREG space. * @off: offset into buffer to beginning of data. * @count: bytes to transfer. * * Description: * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. * Uses the adapter io control registers to read data into buf. * * Returns: * -ERANGE off and count combo out of range * -EINVAL off, count or buff address invalid * value of count, buf contents read **/ static ssize_t sysfs_ctlreg_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { size_t buf_off; uint32_t * tmp_ptr; struct device *dev = container_of(kobj, struct device, kobj); struct Scsi_Host *shost = class_to_shost(dev); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; if (phba->sli_rev >= LPFC_SLI_REV4) return -EPERM; if (off > FF_REG_AREA_SIZE) return -ERANGE; if ((off + count) > FF_REG_AREA_SIZE) count = FF_REG_AREA_SIZE - off; if (count == 0) return 0; if (off % 4 || count % 4 || (unsigned long)buf % 4) return -EINVAL; spin_lock_irq(&phba->hbalock); for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) { tmp_ptr = (uint32_t *)(buf + buf_off); *tmp_ptr = readl(phba->ctrl_regs_memmap_p + off + buf_off); } spin_unlock_irq(&phba->hbalock); return count; } static struct bin_attribute sysfs_ctlreg_attr = { .attr = { .name = "ctlreg", .mode = S_IRUSR | S_IWUSR, }, .size = 256, .read = sysfs_ctlreg_read, .write = sysfs_ctlreg_write, }; /** * sysfs_mbox_write - Write method for writing information via mbox * @filp: open sysfs file * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: contains the data to be written to sysfs mbox. * @off: offset into buffer to beginning of data. * @count: bytes to transfer. * * Description: * Deprecated function. All mailbox access from user space is performed via the * bsg interface. * * Returns: * -EPERM operation not permitted **/ static ssize_t sysfs_mbox_write(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { return -EPERM; } /** * sysfs_mbox_read - Read method for reading information via mbox * @filp: open sysfs file * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: contains the data to be read from sysfs mbox. * @off: offset into buffer to beginning of data. * @count: bytes to transfer. * * Description: * Deprecated function. All mailbox access from user space is performed via the * bsg interface. * * Returns: * -EPERM operation not permitted **/ static ssize_t sysfs_mbox_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { return -EPERM; } static struct bin_attribute sysfs_mbox_attr = { .attr = { .name = "mbox", .mode = S_IRUSR | S_IWUSR, }, .size = MAILBOX_SYSFS_MAX, .read = sysfs_mbox_read, .write = sysfs_mbox_write, }; /** * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries * @vport: address of lpfc vport structure. * * Return codes: * zero on success * error return code from sysfs_create_bin_file() **/ int lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); int error; /* Virtual ports do not need ctrl_reg and mbox */ if (vport->port_type == LPFC_NPIV_PORT) return 0; error = sysfs_create_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); if (error) goto out; error = sysfs_create_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); if (error) goto out_remove_ctlreg_attr; return 0; out_remove_ctlreg_attr: sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); out: return error; } /** * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries * @vport: address of lpfc vport structure. **/ void lpfc_free_sysfs_attr(struct lpfc_vport *vport) { struct Scsi_Host *shost = lpfc_shost_from_vport(vport); /* Virtual ports do not need ctrl_reg and mbox */ if (vport->port_type == LPFC_NPIV_PORT) return; sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); } /* * Dynamic FC Host Attributes Support */ /** * lpfc_get_host_symbolic_name - Copy symbolic name into the scsi host * @shost: kernel scsi host pointer. **/ static void lpfc_get_host_symbolic_name(struct Scsi_Host *shost) { struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; lpfc_vport_symbolic_node_name(vport, fc_host_symbolic_name(shost), sizeof fc_host_symbolic_name(shost)); } /** * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id * @shost: kernel scsi host pointer. **/ static void lpfc_get_host_port_id(struct Scsi_Host *shost) { struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; /* note: fc_myDID already in cpu endianness */ fc_host_port_id(shost) = vport->fc_myDID; } /** * lpfc_get_host_port_type - Set the value of the scsi host port type * @shost: kernel scsi host pointer. **/ static void lpfc_get_host_port_type(struct Scsi_Host *shost) { struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; 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 (test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)) fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; else fc_host_port_type(shost) = FC_PORTTYPE_LPORT; } else { if (test_bit(FC_FABRIC, &vport->fc_flag)) 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; } /** * 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; if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) 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; } } } /** * 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; if ((lpfc_is_link_up(phba)) && !test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { switch(phba->fc_linkspeed) { case LPFC_LINK_SPEED_1GHZ: fc_host_speed(shost) = FC_PORTSPEED_1GBIT; break; case LPFC_LINK_SPEED_2GHZ: fc_host_speed(shost) = FC_PORTSPEED_2GBIT; break; case LPFC_LINK_SPEED_4GHZ: fc_host_speed(shost) = FC_PORTSPEED_4GBIT; break; case LPFC_LINK_SPEED_8GHZ: fc_host_speed(shost) = FC_PORTSPEED_8GBIT; break; case LPFC_LINK_SPEED_10GHZ: fc_host_speed(shost) = FC_PORTSPEED_10GBIT; break; case LPFC_LINK_SPEED_16GHZ: fc_host_speed(shost) = FC_PORTSPEED_16GBIT; break; case LPFC_LINK_SPEED_32GHZ: fc_host_speed(shost) = FC_PORTSPEED_32GBIT; break; case LPFC_LINK_SPEED_64GHZ: fc_host_speed(shost) = FC_PORTSPEED_64GBIT; break; case LPFC_LINK_SPEED_128GHZ: fc_host_speed(shost) = FC_PORTSPEED_128GBIT; break; case LPFC_LINK_SPEED_256GHZ: fc_host_speed(shost) = FC_PORTSPEED_256GBIT; break; default: fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; break; } } else if (lpfc_is_link_up(phba) && test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { switch (phba->fc_linkspeed) { case LPFC_ASYNC_LINK_SPEED_1GBPS: fc_host_speed(shost) = FC_PORTSPEED_1GBIT; break; case LPFC_ASYNC_LINK_SPEED_10GBPS: fc_host_speed(shost) = FC_PORTSPEED_10GBIT; break; case LPFC_ASYNC_LINK_SPEED_20GBPS: fc_host_speed(shost) = FC_PORTSPEED_20GBIT; break; case LPFC_ASYNC_LINK_SPEED_25GBPS: fc_host_speed(shost) = FC_PORTSPEED_25GBIT; break; case LPFC_ASYNC_LINK_SPEED_40GBPS: fc_host_speed(shost) = FC_PORTSPEED_40GBIT; break; case LPFC_ASYNC_LINK_SPEED_100GBPS: fc_host_speed(shost) = FC_PORTSPEED_100GBIT; break; default: fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; break; } } else fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; } /** * 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; if (vport->port_state > LPFC_FLOGI && (test_bit(FC_FABRIC, &vport->fc_flag) || (phba->fc_topology == LPFC_TOPOLOGY_LOOP && test_bit(FC_PUBLIC_LOOP, &vport->fc_flag)))) 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; fc_host_fabric_name(shost) = node_name; } /** * lpfc_get_stats - Return statistical information about the adapter * @shost: kernel scsi host pointer. * * Notes: * NULL on error for link down, no mbox pool, sli2 active, * management not allowed, memory allocation error, or mbox error. * * Returns: * NULL for error * address of the adapter host statistics **/ static struct fc_host_statistics * lpfc_get_stats(struct Scsi_Host *shost) { struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_sli *psli = &phba->sli; struct fc_host_statistics *hs = &phba->link_stats; struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; LPFC_MBOXQ_t *pmboxq; MAILBOX_t *pmb; int rc = 0; /* * prevent udev from issuing mailbox commands until the port is * configured. */ if (phba->link_state < LPFC_LINK_DOWN || !phba->mbox_mem_pool || (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) return NULL; if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) return NULL; pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmboxq) return NULL; memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); pmb = &pmboxq->u.mb; pmb->mbxCommand = MBX_READ_STATUS; pmb->mbxOwner = OWN_HOST; pmboxq->ctx_buf = NULL; pmboxq->vport = vport; if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) { rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); if (rc != MBX_SUCCESS) { mempool_free(pmboxq, phba->mbox_mem_pool); return NULL; } } else { rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); if (rc != MBX_SUCCESS) { if (rc != MBX_TIMEOUT) mempool_free(pmboxq, phba->mbox_mem_pool); return NULL; } } memset(hs, 0, sizeof (struct fc_host_statistics)); hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; /* * The MBX_READ_STATUS returns tx_k_bytes which has to be * converted to words. * * Check if extended byte flag is set, to know when to collect upper * bits of 64 bit wide statistics counter. */ if (pmb->un.varRdStatus.xkb & RD_ST_XKB) { hs->tx_words = (u64) ((((u64)(pmb->un.varRdStatus.xmit_xkb & RD_ST_XMIT_XKB_MASK) << 32) | (u64)pmb->un.varRdStatus.xmitByteCnt) * (u64)256); hs->rx_words = (u64) ((((u64)(pmb->un.varRdStatus.rcv_xkb & RD_ST_RCV_XKB_MASK) << 32) | (u64)pmb->un.varRdStatus.rcvByteCnt) * (u64)256); } else { hs->tx_words = (uint64_t) ((uint64_t)pmb->un.varRdStatus.xmitByteCnt * (uint64_t)256); hs->rx_words = (uint64_t) ((uint64_t)pmb->un.varRdStatus.rcvByteCnt * (uint64_t)256); } memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); pmb->mbxCommand = MBX_READ_LNK_STAT; pmb->mbxOwner = OWN_HOST; pmboxq->ctx_buf = NULL; pmboxq->vport = vport; if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag)) { rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); if (rc != MBX_SUCCESS) { mempool_free(pmboxq, phba->mbox_mem_pool); return NULL; } } else { rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); if (rc != MBX_SUCCESS) { if (rc != MBX_TIMEOUT) mempool_free(pmboxq, phba->mbox_mem_pool); return NULL; } } hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; hs->error_frames = pmb->un.varRdLnk.crcCnt; hs->cn_sig_warn = atomic64_read(&phba->cgn_acqe_stat.warn); hs->cn_sig_alarm = atomic64_read(&phba->cgn_acqe_stat.alarm); hs->link_failure_count -= lso->link_failure_count; hs->loss_of_sync_count -= lso->loss_of_sync_count; hs->loss_of_signal_count -= lso->loss_of_signal_count; hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; hs->invalid_tx_word_count -= lso->invalid_tx_word_count; hs->invalid_crc_count -= lso->invalid_crc_count; hs->error_frames -= lso->error_frames; if (test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { hs->lip_count = -1; hs->nos_count = (phba->link_events >> 1); hs->nos_count -= lso->link_events; } else if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) { hs->lip_count = (phba->fc_eventTag >> 1); hs->lip_count -= lso->link_events; hs->nos_count = -1; } else { hs->lip_count = -1; hs->nos_count = (phba->fc_eventTag >> 1); hs->nos_count -= lso->link_events; } hs->dumped_frames = -1; hs->seconds_since_last_reset = ktime_get_seconds() - psli->stats_start; mempool_free(pmboxq, phba->mbox_mem_pool); return hs; } /** * lpfc_reset_stats - Copy the adapter link stats information * @shost: kernel scsi host pointer. **/ static void lpfc_reset_stats(struct Scsi_Host *shost) { struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_hba *phba = vport->phba; struct lpfc_sli *psli = &phba->sli; struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; LPFC_MBOXQ_t *pmboxq; MAILBOX_t *pmb; int rc = 0; if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) return; pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmboxq) return; memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); pmb = &pmboxq->u.mb; pmb->mbxCommand = MBX_READ_STATUS; pmb->mbxOwner = OWN_HOST; pmb->un.varWords[0] = 0x1; /* reset request */ pmboxq->ctx_buf = NULL; pmboxq->vport = vport; if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) || !(psli->sli_flag & LPFC_SLI_ACTIVE)) { rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); if (rc != MBX_SUCCESS) { mempool_free(pmboxq, phba->mbox_mem_pool); return; } } else { rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); if (rc != MBX_SUCCESS) { if (rc != MBX_TIMEOUT) mempool_free(pmboxq, phba->mbox_mem_pool); return; } } memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); pmb->mbxCommand = MBX_READ_LNK_STAT; pmb->mbxOwner = OWN_HOST; pmboxq->ctx_buf = NULL; pmboxq->vport = vport; if (test_bit(FC_OFFLINE_MODE, &vport->fc_flag) || !(psli->sli_flag & LPFC_SLI_ACTIVE)) { rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); if (rc != MBX_SUCCESS) { mempool_free(pmboxq, phba->mbox_mem_pool); return; } } else { rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); if (rc != MBX_SUCCESS) { if (rc != MBX_TIMEOUT) mempool_free(pmboxq, phba->mbox_mem_pool); return; } } lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; lso->error_frames = pmb->un.varRdLnk.crcCnt; if (test_bit(HBA_FCOE_MODE, &phba->hba_flag)) lso->link_events = (phba->link_events >> 1); else lso->link_events = (phba->fc_eventTag >> 1); atomic64_set(&phba->cgn_acqe_stat.warn, 0); atomic64_set(&phba->cgn_acqe_stat.alarm, 0); memset(&shost_to_fc_host(shost)->fpin_stats, 0, sizeof(shost_to_fc_host(shost)->fpin_stats)); psli->stats_start = ktime_get_seconds(); mempool_free(pmboxq, phba->mbox_mem_pool); return; } /* * The LPFC driver treats linkdown handling as target loss events so there * are no sysfs handlers for link_down_tmo. */ /** * lpfc_get_node_by_target - Return the nodelist for a target * @starget: kernel scsi target pointer. * * Returns: * address of the node list if found * NULL target not found **/ static struct lpfc_nodelist * lpfc_get_node_by_target(struct scsi_target *starget) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; struct lpfc_nodelist *ndlp; unsigned long iflags; spin_lock_irqsave(&vport->fc_nodes_list_lock, iflags); /* Search for this, mapped, target ID */ list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { if (ndlp->nlp_state == NLP_STE_MAPPED_NODE && starget->id == ndlp->nlp_sid) { spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); return ndlp; } } spin_unlock_irqrestore(&vport->fc_nodes_list_lock, iflags); return NULL; } /** * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 * @starget: kernel scsi target pointer. **/ static void lpfc_get_starget_port_id(struct scsi_target *starget) { struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; } /** * lpfc_get_starget_node_name - Set the target node name * @starget: kernel scsi target pointer. * * Description: Set the target node name to the ndlp node name wwn or zero. **/ static void lpfc_get_starget_node_name(struct scsi_target *starget) { struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); fc_starget_node_name(starget) = ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; } /** * lpfc_get_starget_port_name - Set the target port name * @starget: kernel scsi target pointer. * * Description: set the target port name to the ndlp port name wwn or zero. **/ static void lpfc_get_starget_port_name(struct scsi_target *starget) { struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); fc_starget_port_name(starget) = ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; } /** * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo * @rport: fc rport address. * @timeout: new value for dev loss tmo. * * Description: * If timeout is non zero set the dev_loss_tmo to timeout, else set * dev_loss_tmo to one. **/ static void lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) { struct lpfc_rport_data *rdata = rport->dd_data; struct lpfc_nodelist *ndlp = rdata->pnode; #if (IS_ENABLED(CONFIG_NVME_FC)) struct lpfc_nvme_rport *nrport = NULL; #endif if (timeout) rport->dev_loss_tmo = timeout; else rport->dev_loss_tmo = 1; if (!ndlp) { dev_info(&rport->dev, "Cannot find remote node to " "set rport dev loss tmo, port_id x%x\n", rport->port_id); return; } #if (IS_ENABLED(CONFIG_NVME_FC)) nrport = lpfc_ndlp_get_nrport(ndlp); if (nrport && nrport->remoteport) nvme_fc_set_remoteport_devloss(nrport->remoteport, rport->dev_loss_tmo); #endif } /* * lpfc_rport_show_function - Return rport target information * * Description: * Macro that uses field to generate a function with the name lpfc_show_rport_ * * lpfc_show_rport_##field: returns the bytes formatted in buf * @cdev: class converted to an fc_rport. * @buf: on return contains the target_field or zero. * * Returns: size of formatted string. **/ #define lpfc_rport_show_function(field, format_string, sz, cast) \ static ssize_t \ lpfc_show_rport_##field (struct device *dev, \ struct device_attribute *attr, \ char *buf) \ { \ struct fc_rport *rport = transport_class_to_rport(dev); \ struct lpfc_rport_data *rdata = rport->hostdata; \ return scnprintf(buf, sz, format_string, \ (rdata->target) ? cast rdata->target->field : 0); \ } #define lpfc_rport_rd_attr(field, format_string, sz) \ lpfc_rport_show_function(field, format_string, sz, ) \ static FC_RPORT_ATTR(field, S_IRUGO, lpfc_show_rport_##field, NULL) /** * lpfc_set_vport_symbolic_name - Set the vport's symbolic name * @fc_vport: The fc_vport who's symbolic name has been changed. * * Description: * This function is called by the transport after the @fc_vport's symbolic name * has been changed. This function re-registers the symbolic name with the * switch to propagate the change into the fabric if the vport is active. **/ static void lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) { struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; if (vport->port_state == LPFC_VPORT_READY) lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); } /** * lpfc_hba_log_verbose_init - Set hba's log verbose level * @phba: Pointer to lpfc_hba struct. * @verbose: Verbose level to set. * * This function is called by the lpfc_get_cfgparam() routine to set the * module lpfc_log_verbose into the @phba cfg_log_verbose for use with * log message according to the module's lpfc_log_verbose parameter setting * before hba port or vport created. **/ static void lpfc_hba_log_verbose_init(struct lpfc_hba *phba, uint32_t verbose) { phba->cfg_log_verbose = verbose; } struct fc_function_template lpfc_transport_functions = { /* fixed attributes the driver supports */ .show_host_node_name = 1, .show_host_port_name = 1, .show_host_supported_classes = 1, .show_host_supported_fc4s = 1, .show_host_supported_speeds = 1, .show_host_maxframe_size = 1, .get_host_symbolic_name = lpfc_get_host_symbolic_name, .show_host_symbolic_name = 1, /* dynamic attributes the driver supports */ .get_host_port_id = lpfc_get_host_port_id, .show_host_port_id = 1, .get_host_port_type = lpfc_get_host_port_type, .show_host_port_type = 1, .get_host_port_state = lpfc_get_host_port_state, .show_host_port_state = 1, /* active_fc4s is shown but doesn't change (thus no get function) */ .show_host_active_fc4s = 1, .get_host_speed = lpfc_get_host_speed, .show_host_speed = 1, .get_host_fabric_name = lpfc_get_host_fabric_name, .show_host_fabric_name = 1, /* * The LPFC driver treats linkdown handling as target loss events * so there are no sysfs handlers for link_down_tmo. */ .get_fc_host_stats = lpfc_get_stats, .reset_fc_host_stats = lpfc_reset_stats, .dd_fcrport_size = sizeof(struct lpfc_rport_data), .show_rport_maxframe_size = 1, .show_rport_supported_classes = 1, .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, .show_rport_dev_loss_tmo = 1, .get_starget_port_id = lpfc_get_starget_port_id, .show_starget_port_id = 1, .get_starget_node_name = lpfc_get_starget_node_name, .show_starget_node_name = 1, .get_starget_port_name = lpfc_get_starget_port_name, .show_starget_port_name = 1, .issue_fc_host_lip = lpfc_issue_lip, .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, .terminate_rport_io = lpfc_terminate_rport_io, .dd_fcvport_size = sizeof(struct lpfc_vport *), .vport_disable = lpfc_vport_disable, .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, .bsg_request = lpfc_bsg_request, .bsg_timeout = lpfc_bsg_timeout, }; struct fc_function_template lpfc_vport_transport_functions = { /* fixed attributes the driver supports */ .show_host_node_name = 1, .show_host_port_name = 1, .show_host_supported_classes = 1, .show_host_supported_fc4s = 1, .show_host_supported_speeds = 1, .show_host_maxframe_size = 1, .get_host_symbolic_name = lpfc_get_host_symbolic_name, .show_host_symbolic_name = 1, /* dynamic attributes the driver supports */ .get_host_port_id = lpfc_get_host_port_id, .show_host_port_id = 1, .get_host_port_type = lpfc_get_host_port_type, .show_host_port_type = 1, .get_host_port_state = lpfc_get_host_port_state, .show_host_port_state = 1, /* active_fc4s is shown but doesn't change (thus no get function) */ .show_host_active_fc4s = 1, .get_host_speed = lpfc_get_host_speed, .show_host_speed = 1, .get_host_fabric_name = lpfc_get_host_fabric_name, .show_host_fabric_name = 1, /* * The LPFC driver treats linkdown handling as target loss events * so there are no sysfs handlers for link_down_tmo. */ .get_fc_host_stats = lpfc_get_stats, .reset_fc_host_stats = lpfc_reset_stats, .dd_fcrport_size = sizeof(struct lpfc_rport_data), .show_rport_maxframe_size = 1, .show_rport_supported_classes = 1, .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, .show_rport_dev_loss_tmo = 1, .get_starget_port_id = lpfc_get_starget_port_id, .show_starget_port_id = 1, .get_starget_node_name = lpfc_get_starget_node_name, .show_starget_node_name = 1, .get_starget_port_name = lpfc_get_starget_port_name, .show_starget_port_name = 1, .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, .terminate_rport_io = lpfc_terminate_rport_io, .vport_disable = lpfc_vport_disable, .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, }; /** * lpfc_get_hba_function_mode - Used to determine the HBA function in FCoE * Mode * @phba: lpfc_hba pointer. **/ static void lpfc_get_hba_function_mode(struct lpfc_hba *phba) { /* If the adapter supports FCoE mode */ switch (phba->pcidev->device) { case PCI_DEVICE_ID_SKYHAWK: case PCI_DEVICE_ID_SKYHAWK_VF: case PCI_DEVICE_ID_LANCER_FCOE: case PCI_DEVICE_ID_LANCER_FCOE_VF: case PCI_DEVICE_ID_ZEPHYR_DCSP: case PCI_DEVICE_ID_TIGERSHARK: case PCI_DEVICE_ID_TOMCAT: set_bit(HBA_FCOE_MODE, &phba->hba_flag); break; default: /* for others, clear the flag */ clear_bit(HBA_FCOE_MODE, &phba->hba_flag); } } /** * lpfc_get_cfgparam - Used during probe_one to init the adapter structure * @phba: lpfc_hba pointer. **/ void lpfc_get_cfgparam(struct lpfc_hba *phba) { lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); lpfc_fcp_io_sched_init(phba, lpfc_fcp_io_sched); lpfc_ns_query_init(phba, lpfc_ns_query); lpfc_fcp2_no_tgt_reset_init(phba, lpfc_fcp2_no_tgt_reset); lpfc_cr_delay_init(phba, lpfc_cr_delay); lpfc_cr_count_init(phba, lpfc_cr_count); lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); lpfc_ack0_init(phba, lpfc_ack0); lpfc_xri_rebalancing_init(phba, lpfc_xri_rebalancing); lpfc_topology_init(phba, lpfc_topology); lpfc_link_speed_init(phba, lpfc_link_speed); lpfc_poll_tmo_init(phba, lpfc_poll_tmo); lpfc_task_mgmt_tmo_init(phba, lpfc_task_mgmt_tmo); lpfc_enable_npiv_init(phba, lpfc_enable_npiv); lpfc_fcf_failover_policy_init(phba, lpfc_fcf_failover_policy); lpfc_enable_rrq_init(phba, lpfc_enable_rrq); lpfc_fcp_wait_abts_rsp_init(phba, lpfc_fcp_wait_abts_rsp); lpfc_fdmi_on_init(phba, lpfc_fdmi_on); lpfc_enable_SmartSAN_init(phba, lpfc_enable_SmartSAN); lpfc_use_msi_init(phba, lpfc_use_msi); lpfc_nvme_oas_init(phba, lpfc_nvme_oas); lpfc_nvme_embed_cmd_init(phba, lpfc_nvme_embed_cmd); lpfc_fcp_imax_init(phba, lpfc_fcp_imax); lpfc_force_rscn_init(phba, lpfc_force_rscn); lpfc_cq_poll_threshold_init(phba, lpfc_cq_poll_threshold); lpfc_cq_max_proc_limit_init(phba, lpfc_cq_max_proc_limit); lpfc_fcp_cpu_map_init(phba, lpfc_fcp_cpu_map); lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); lpfc_EnableXLane_init(phba, lpfc_EnableXLane); /* VMID Inits */ lpfc_max_vmid_init(phba, lpfc_max_vmid); lpfc_vmid_inactivity_timeout_init(phba, lpfc_vmid_inactivity_timeout); lpfc_vmid_app_header_init(phba, lpfc_vmid_app_header); lpfc_vmid_priority_tagging_init(phba, lpfc_vmid_priority_tagging); if (phba->sli_rev != LPFC_SLI_REV4) phba->cfg_EnableXLane = 0; lpfc_XLanePriority_init(phba, lpfc_XLanePriority); memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t))); memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t))); phba->cfg_oas_lun_state = 0; phba->cfg_oas_lun_status = 0; phba->cfg_oas_flags = 0; phba->cfg_oas_priority = 0; lpfc_enable_bg_init(phba, lpfc_enable_bg); lpfc_prot_mask_init(phba, lpfc_prot_mask); lpfc_prot_guard_init(phba, lpfc_prot_guard); if (phba->sli_rev == LPFC_SLI_REV4) phba->cfg_poll = 0; else phba->cfg_poll = lpfc_poll; /* Get the function mode */ lpfc_get_hba_function_mode(phba); /* BlockGuard allowed for FC only. */ if (phba->cfg_enable_bg && test_bit(HBA_FCOE_MODE, &phba->hba_flag)) { lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "0581 BlockGuard feature not supported\n"); /* If set, clear the BlockGuard support param */ phba->cfg_enable_bg = 0; } else if (phba->cfg_enable_bg) { phba->sli3_options |= LPFC_SLI3_BG_ENABLED; } lpfc_suppress_rsp_init(phba, lpfc_suppress_rsp); lpfc_enable_fc4_type_init(phba, lpfc_enable_fc4_type); lpfc_nvmet_mrq_init(phba, lpfc_nvmet_mrq); lpfc_nvmet_mrq_post_init(phba, lpfc_nvmet_mrq_post); /* Initialize first burst. Target vs Initiator are different. */ lpfc_nvme_enable_fb_init(phba, lpfc_nvme_enable_fb); lpfc_nvmet_fb_size_init(phba, lpfc_nvmet_fb_size); lpfc_fcp_mq_threshold_init(phba, lpfc_fcp_mq_threshold); lpfc_hdw_queue_init(phba, lpfc_hdw_queue); lpfc_irq_chann_init(phba, lpfc_irq_chann); lpfc_enable_bbcr_init(phba, lpfc_enable_bbcr); lpfc_enable_dpp_init(phba, lpfc_enable_dpp); lpfc_enable_mi_init(phba, lpfc_enable_mi); phba->cgn_p.cgn_param_mode = LPFC_CFG_OFF; phba->cmf_active_mode = LPFC_CFG_OFF; if (lpfc_fabric_cgn_frequency > EDC_CG_SIGFREQ_CNT_MAX || lpfc_fabric_cgn_frequency < EDC_CG_SIGFREQ_CNT_MIN) lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ if (phba->sli_rev != LPFC_SLI_REV4) { /* NVME only supported on SLI4 */ phba->nvmet_support = 0; phba->cfg_nvmet_mrq = 0; phba->cfg_enable_fc4_type = LPFC_ENABLE_FCP; phba->cfg_enable_bbcr = 0; phba->cfg_xri_rebalancing = 0; } else { /* We MUST have FCP support */ if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP)) phba->cfg_enable_fc4_type |= LPFC_ENABLE_FCP; } phba->cfg_auto_imax = (phba->cfg_fcp_imax) ? 0 : 1; phba->cfg_enable_pbde = 0; /* A value of 0 means use the number of CPUs found in the system */ if (phba->cfg_hdw_queue == 0) phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; if (phba->cfg_irq_chann == 0) phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; if (phba->cfg_irq_chann > phba->cfg_hdw_queue && phba->sli_rev == LPFC_SLI_REV4) phba->cfg_irq_chann = phba->cfg_hdw_queue; lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); lpfc_sriov_nr_virtfn_init(phba, lpfc_sriov_nr_virtfn); lpfc_request_firmware_upgrade_init(phba, lpfc_req_fw_upgrade); lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); lpfc_delay_discovery_init(phba, lpfc_delay_discovery); lpfc_sli_mode_init(phba, lpfc_sli_mode); lpfc_enable_mds_diags_init(phba, lpfc_enable_mds_diags); lpfc_ras_fwlog_buffsize_init(phba, lpfc_ras_fwlog_buffsize); lpfc_ras_fwlog_level_init(phba, lpfc_ras_fwlog_level); lpfc_ras_fwlog_func_init(phba, lpfc_ras_fwlog_func); return; } /** * lpfc_nvme_mod_param_dep - Adjust module parameter value based on * dependencies between protocols and roles. * @phba: lpfc_hba pointer. **/ void lpfc_nvme_mod_param_dep(struct lpfc_hba *phba) { int logit = 0; if (phba->cfg_hdw_queue > phba->sli4_hba.num_present_cpu) { phba->cfg_hdw_queue = phba->sli4_hba.num_present_cpu; logit = 1; } if (phba->cfg_irq_chann > phba->sli4_hba.num_present_cpu) { phba->cfg_irq_chann = phba->sli4_hba.num_present_cpu; logit = 1; } if (phba->cfg_irq_chann > phba->cfg_hdw_queue) { phba->cfg_irq_chann = phba->cfg_hdw_queue; logit = 1; } if (logit) lpfc_printf_log(phba, KERN_ERR, LOG_SLI, "2006 Reducing Queues - CPU limitation: " "IRQ %d HDWQ %d\n", phba->cfg_irq_chann, phba->cfg_hdw_queue); if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME && phba->nvmet_support) { phba->cfg_enable_fc4_type &= ~LPFC_ENABLE_FCP; lpfc_printf_log(phba, KERN_INFO, LOG_NVME_DISC, "6013 %s x%x fb_size x%x, fb_max x%x\n", "NVME Target PRLI ACC enable_fb ", phba->cfg_nvme_enable_fb, phba->cfg_nvmet_fb_size, LPFC_NVMET_FB_SZ_MAX); if (phba->cfg_nvme_enable_fb == 0) phba->cfg_nvmet_fb_size = 0; else { if (phba->cfg_nvmet_fb_size > LPFC_NVMET_FB_SZ_MAX) phba->cfg_nvmet_fb_size = LPFC_NVMET_FB_SZ_MAX; } if (!phba->cfg_nvmet_mrq) phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; /* Adjust lpfc_nvmet_mrq to avoid running out of WQE slots */ if (phba->cfg_nvmet_mrq > phba->cfg_hdw_queue) { phba->cfg_nvmet_mrq = phba->cfg_hdw_queue; lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, "6018 Adjust lpfc_nvmet_mrq to %d\n", phba->cfg_nvmet_mrq); } if (phba->cfg_nvmet_mrq > LPFC_NVMET_MRQ_MAX) phba->cfg_nvmet_mrq = LPFC_NVMET_MRQ_MAX; } else { /* Not NVME Target mode. Turn off Target parameters. */ phba->nvmet_support = 0; phba->cfg_nvmet_mrq = 0; phba->cfg_nvmet_fb_size = 0; } } /** * lpfc_get_vport_cfgparam - Used during port create, init the vport structure * @vport: lpfc_vport pointer. **/ void lpfc_get_vport_cfgparam(struct lpfc_vport *vport) { lpfc_log_verbose_init(vport, lpfc_log_verbose); lpfc_lun_queue_depth_init(vport, lpfc_lun_queue_depth); lpfc_tgt_queue_depth_init(vport, lpfc_tgt_queue_depth); lpfc_devloss_tmo_init(vport, lpfc_devloss_tmo); lpfc_nodev_tmo_init(vport, lpfc_nodev_tmo); lpfc_peer_port_login_init(vport, lpfc_peer_port_login); lpfc_restrict_login_init(vport, lpfc_restrict_login); lpfc_fcp_class_init(vport, lpfc_fcp_class); lpfc_use_adisc_init(vport, lpfc_use_adisc); lpfc_first_burst_size_init(vport, lpfc_first_burst_size); lpfc_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); lpfc_discovery_threads_init(vport, lpfc_discovery_threads); lpfc_max_luns_init(vport, lpfc_max_luns); lpfc_scan_down_init(vport, lpfc_scan_down); lpfc_enable_da_id_init(vport, lpfc_enable_da_id); return; }
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