| /******************************************************************* |
| * This file is part of the Emulex Linux Device Driver for * |
| * Fibre Channel Host Bus Adapters. * |
| * Copyright (C) 2004-2009 Emulex. All rights reserved. * |
| * EMULEX and SLI are trademarks of Emulex. * |
| * www.emulex.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/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_scsi.h" |
| #include "lpfc.h" |
| #include "lpfc_logmsg.h" |
| #include "lpfc_version.h" |
| #include "lpfc_compat.h" |
| #include "lpfc_crtn.h" |
| #include "lpfc_vport.h" |
| |
| #define LPFC_DEF_DEVLOSS_TMO 30 |
| #define LPFC_MIN_DEVLOSS_TMO 1 |
| #define LPFC_MAX_DEVLOSS_TMO 255 |
| |
| #define LPFC_MAX_LINK_SPEED 8 |
| #define LPFC_LINK_SPEED_BITMAP 0x00000117 |
| #define LPFC_LINK_SPEED_STRING "0, 1, 2, 4, 8" |
| |
| /** |
| * lpfc_jedec_to_ascii - Hex to ascii convertor according to JEDEC rules |
| * @incr: integer to convert. |
| * @hdw: ascii string holding converted integer plus a string terminator. |
| * |
| * Description: |
| * JEDEC Joint Electron Device Engineering Council. |
| * Convert a 32 bit integer composed of 8 nibbles into an 8 byte ascii |
| * character string. The string is then terminated with a NULL in byte 9. |
| * Hex 0-9 becomes ascii '0' to '9'. |
| * Hex a-f becomes ascii '=' to 'B' capital B. |
| * |
| * Notes: |
| * Coded for 32 bit integers only. |
| **/ |
| static void |
| lpfc_jedec_to_ascii(int incr, char hdw[]) |
| { |
| int i, j; |
| for (i = 0; i < 8; i++) { |
| j = (incr & 0xf); |
| if (j <= 9) |
| hdw[7 - i] = 0x30 + j; |
| else |
| hdw[7 - i] = 0x61 + j - 10; |
| incr = (incr >> 4); |
| } |
| hdw[8] = 0; |
| return; |
| } |
| |
| /** |
| * lpfc_drvr_version_show - Return the Emulex driver string with version number |
| * @dev: class unused variable. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the module description text. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_drvr_version_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); |
| } |
| |
| /** |
| * lpfc_enable_fip_show - Return the fip mode of the HBA |
| * @dev: class unused variable. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the module description text. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_enable_fip_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| if (phba->hba_flag & HBA_FIP_SUPPORT) |
| return snprintf(buf, PAGE_SIZE, "1\n"); |
| else |
| return snprintf(buf, PAGE_SIZE, "0\n"); |
| } |
| |
| 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 snprintf(buf, PAGE_SIZE, "BlockGuard Enabled\n"); |
| else |
| return snprintf(buf, PAGE_SIZE, |
| "BlockGuard Not Supported\n"); |
| else |
| return snprintf(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 snprintf(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 snprintf(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 snprintf(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 snprintf(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 snprintf(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 snprintf(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 snprintf(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 snprintf(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 snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); |
| } |
| |
| /** |
| * lpfc_mlomgmt_show - Return the Menlo Maintenance sli flag |
| * @dev: class converted to a Scsi_host structure. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the Menlo Maintenance sli flag. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_mlomgmt_show(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", |
| (phba->sli.sli_flag & LPFC_MENLO_MAINT)); |
| } |
| |
| /** |
| * lpfc_vportnum_show - Return the port number in ascii of the hba |
| * @dev: class converted to a Scsi_host structure. |
| * @attr: device attribute, not used. |
| * @buf: on return contains scsi vpd program type. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_vportnum_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| return snprintf(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; |
| char fwrev[32]; |
| |
| lpfc_decode_firmware_rev(phba, fwrev, 1); |
| return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev); |
| } |
| |
| /** |
| * 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 snprintf(buf, PAGE_SIZE, "%s\n", hdw); |
| } |
| |
| /** |
| * lpfc_option_rom_version_show - Return the adapter ROM FCode version |
| * @dev: class converted to a Scsi_host structure. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the ROM and FCode ascii strings. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_option_rom_version_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); |
| } |
| |
| /** |
| * lpfc_state_show - Return the link state of the port |
| * @dev: class converted to a Scsi_host structure. |
| * @attr: device attribute, not used. |
| * @buf: on return contains text describing the state of the link. |
| * |
| * Notes: |
| * The switch statement has no default so zero will be returned. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_link_state_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int len = 0; |
| |
| switch (phba->link_state) { |
| case LPFC_LINK_UNKNOWN: |
| case LPFC_WARM_START: |
| case LPFC_INIT_START: |
| case LPFC_INIT_MBX_CMDS: |
| case LPFC_LINK_DOWN: |
| case LPFC_HBA_ERROR: |
| if (phba->hba_flag & LINK_DISABLED) |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| "Link Down - User disabled\n"); |
| else |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| "Link Down\n"); |
| break; |
| case LPFC_LINK_UP: |
| case LPFC_CLEAR_LA: |
| case LPFC_HBA_READY: |
| len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - "); |
| |
| switch (vport->port_state) { |
| case LPFC_LOCAL_CFG_LINK: |
| len += snprintf(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 += snprintf(buf + len, PAGE_SIZE - len, |
| "Discovery\n"); |
| break; |
| case LPFC_VPORT_READY: |
| len += snprintf(buf + len, PAGE_SIZE - len, "Ready\n"); |
| break; |
| |
| case LPFC_VPORT_FAILED: |
| len += snprintf(buf + len, PAGE_SIZE - len, "Failed\n"); |
| break; |
| |
| case LPFC_VPORT_UNKNOWN: |
| len += snprintf(buf + len, PAGE_SIZE - len, |
| "Unknown\n"); |
| break; |
| } |
| if (phba->sli.sli_flag & LPFC_MENLO_MAINT) |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| " Menlo Maint Mode\n"); |
| else if (phba->fc_topology == TOPOLOGY_LOOP) { |
| if (vport->fc_flag & FC_PUBLIC_LOOP) |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| " Public Loop\n"); |
| else |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| " Private Loop\n"); |
| } else { |
| if (vport->fc_flag & FC_FABRIC) |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| " Fabric\n"); |
| else |
| len += snprintf(buf + len, PAGE_SIZE-len, |
| " Point-2-Point\n"); |
| } |
| } |
| |
| return len; |
| } |
| |
| /** |
| * 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 snprintf(buf, PAGE_SIZE, "%d\n", |
| vport->fc_map_cnt + vport->fc_unmap_cnt); |
| } |
| |
| /** |
| * lpfc_issue_lip - Misnomer, name carried over from long ago |
| * @shost: Scsi_Host pointer. |
| * |
| * Description: |
| * Bring the link down gracefully then re-init the link. The firmware will |
| * re-init the fiber channel interface as required. Does not issue a LIP. |
| * |
| * Returns: |
| * -EPERM port offline or management commands are being blocked |
| * -ENOMEM cannot allocate memory for the mailbox command |
| * -EIO error sending the mailbox command |
| * zero for success |
| **/ |
| static int |
| lpfc_issue_lip(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| LPFC_MBOXQ_t *pmboxq; |
| int mbxstatus = MBXERR_ERROR; |
| |
| if ((vport->fc_flag & FC_OFFLINE_MODE) || |
| (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO)) |
| return -EPERM; |
| |
| pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); |
| |
| if (!pmboxq) |
| return -ENOMEM; |
| |
| memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); |
| pmboxq->u.mb.mbxCommand = MBX_DOWN_LINK; |
| pmboxq->u.mb.mbxOwner = OWN_HOST; |
| |
| mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO * 2); |
| |
| if ((mbxstatus == MBX_SUCCESS) && |
| (pmboxq->u.mb.mbxStatus == 0 || |
| pmboxq->u.mb.mbxStatus == MBXERR_LINK_DOWN)) { |
| memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); |
| lpfc_init_link(phba, pmboxq, phba->cfg_topology, |
| phba->cfg_link_speed); |
| mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, |
| phba->fc_ratov * 2); |
| if ((mbxstatus == MBX_SUCCESS) && |
| (pmboxq->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION)) |
| lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI, |
| "2859 SLI authentication is required " |
| "for INIT_LINK but has not done yet\n"); |
| } |
| |
| lpfc_set_loopback_flag(phba); |
| if (mbxstatus != MBX_TIMEOUT) |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| |
| if (mbxstatus == MBXERR_ERROR) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| /** |
| * 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_sli_ring *pring; |
| struct lpfc_sli *psli; |
| int status = 0; |
| int cnt = 0; |
| int i; |
| |
| init_completion(&online_compl); |
| lpfc_workq_post_event(phba, &status, &online_compl, |
| LPFC_EVT_OFFLINE_PREP); |
| wait_for_completion(&online_compl); |
| |
| if (status != 0) |
| return -EIO; |
| |
| psli = &phba->sli; |
| |
| /* Wait a little for things to settle down, but not |
| * long enough for dev loss timeout to expire. |
| */ |
| for (i = 0; i < psli->num_rings; i++) { |
| pring = &psli->ring[i]; |
| while (pring->txcmplq_cnt) { |
| msleep(10); |
| if (cnt++ > 500) { /* 5 secs */ |
| lpfc_printf_log(phba, |
| KERN_WARNING, LOG_INIT, |
| "0466 Outstanding IO when " |
| "bringing Adapter offline\n"); |
| break; |
| } |
| } |
| } |
| |
| init_completion(&online_compl); |
| lpfc_workq_post_event(phba, &status, &online_compl, type); |
| wait_for_completion(&online_compl); |
| |
| if (status != 0) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| /** |
| * lpfc_selective_reset - Offline then onlines the port |
| * @phba: lpfc_hba pointer. |
| * |
| * Description: |
| * If the port is configured to allow a reset then the hba is brought |
| * offline then online. |
| * |
| * Notes: |
| * Assumes any error from lpfc_do_offline() will be negative. |
| * |
| * Returns: |
| * lpfc_do_offline() return code if not zero |
| * -EIO reset not configured or error posting the event |
| * zero for success |
| **/ |
| static int |
| lpfc_selective_reset(struct lpfc_hba *phba) |
| { |
| struct completion online_compl; |
| int status = 0; |
| |
| if (!phba->cfg_enable_hba_reset) |
| return -EIO; |
| |
| status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); |
| |
| if (status != 0) |
| return status; |
| |
| init_completion(&online_compl); |
| lpfc_workq_post_event(phba, &status, &online_compl, |
| LPFC_EVT_ONLINE); |
| 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 (strncmp(buf, "selective", sizeof("selective") - 1) == 0) |
| status = lpfc_selective_reset(phba); |
| |
| if (status == 0) |
| return strlen(buf); |
| else |
| return status; |
| } |
| |
| /** |
| * 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 snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); |
| } |
| |
| /** |
| * lpfc_board_mode_show - Return the state of the board |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the state of the adapter. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_board_mode_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| char * state; |
| |
| if (phba->link_state == LPFC_HBA_ERROR) |
| state = "error"; |
| else if (phba->link_state == LPFC_WARM_START) |
| state = "warm start"; |
| else if (phba->link_state == LPFC_INIT_START) |
| state = "offline"; |
| else |
| state = "online"; |
| |
| return snprintf(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; |
| int status=0; |
| |
| if (!phba->cfg_enable_hba_reset) |
| return -EACCES; |
| init_completion(&online_compl); |
| |
| if(strncmp(buf, "online", sizeof("online") - 1) == 0) { |
| lpfc_workq_post_event(phba, &status, &online_compl, |
| LPFC_EVT_ONLINE); |
| wait_for_completion(&online_compl); |
| } 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) |
| return -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) |
| return -EINVAL; |
| else |
| status = lpfc_do_offline(phba, LPFC_EVT_KILL); |
| else |
| return -EINVAL; |
| |
| if (!status) |
| return strlen(buf); |
| else |
| return -EIO; |
| } |
| |
| /** |
| * lpfc_get_hba_info - Return various bits of informaton about the adapter |
| * @phba: pointer to the adapter structure. |
| * @mxri: max xri count. |
| * @axri: available xri count. |
| * @mrpi: max rpi count. |
| * @arpi: available rpi count. |
| * @mvpi: max vpi count. |
| * @avpi: available vpi count. |
| * |
| * Description: |
| * If an integer pointer for an count is not null then the value for the |
| * count is returned. |
| * |
| * Returns: |
| * zero on error |
| * one for success |
| **/ |
| static int |
| lpfc_get_hba_info(struct lpfc_hba *phba, |
| uint32_t *mxri, uint32_t *axri, |
| uint32_t *mrpi, uint32_t *arpi, |
| uint32_t *mvpi, uint32_t *avpi) |
| { |
| struct lpfc_mbx_read_config *rd_config; |
| LPFC_MBOXQ_t *pmboxq; |
| MAILBOX_t *pmb; |
| int rc = 0; |
| uint32_t max_vpi; |
| |
| /* |
| * prevent udev from issuing mailbox commands until the port is |
| * configured. |
| */ |
| if (phba->link_state < LPFC_LINK_DOWN || |
| !phba->mbox_mem_pool || |
| (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) |
| return 0; |
| |
| if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) |
| return 0; |
| |
| pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmboxq) |
| return 0; |
| memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| pmb = &pmboxq->u.mb; |
| pmb->mbxCommand = MBX_READ_CONFIG; |
| pmb->mbxOwner = OWN_HOST; |
| pmboxq->context1 = NULL; |
| |
| if (phba->pport->fc_flag & FC_OFFLINE_MODE) |
| rc = MBX_NOT_FINISHED; |
| else |
| rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); |
| |
| if (rc != MBX_SUCCESS) { |
| if (rc != MBX_TIMEOUT) |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return 0; |
| } |
| |
| if (phba->sli_rev == LPFC_SLI_REV4) { |
| rd_config = &pmboxq->u.mqe.un.rd_config; |
| if (mrpi) |
| *mrpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config); |
| if (arpi) |
| *arpi = bf_get(lpfc_mbx_rd_conf_rpi_count, rd_config) - |
| phba->sli4_hba.max_cfg_param.rpi_used; |
| if (mxri) |
| *mxri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config); |
| if (axri) |
| *axri = bf_get(lpfc_mbx_rd_conf_xri_count, rd_config) - |
| phba->sli4_hba.max_cfg_param.xri_used; |
| |
| /* Account for differences with SLI-3. Get vpi count from |
| * mailbox data and subtract one for max vpi value. |
| */ |
| max_vpi = (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) > 0) ? |
| (bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 1) : 0; |
| |
| if (mvpi) |
| *mvpi = max_vpi; |
| if (avpi) |
| *avpi = max_vpi - phba->sli4_hba.max_cfg_param.vpi_used; |
| } else { |
| if (mrpi) |
| *mrpi = pmb->un.varRdConfig.max_rpi; |
| if (arpi) |
| *arpi = pmb->un.varRdConfig.avail_rpi; |
| if (mxri) |
| *mxri = pmb->un.varRdConfig.max_xri; |
| if (axri) |
| *axri = pmb->un.varRdConfig.avail_xri; |
| if (mvpi) |
| *mvpi = pmb->un.varRdConfig.max_vpi; |
| if (avpi) |
| *avpi = pmb->un.varRdConfig.avail_vpi; |
| } |
| |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return 1; |
| } |
| |
| /** |
| * lpfc_max_rpi_show - Return maximum rpi |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the maximum rpi count in decimal or "Unknown". |
| * |
| * Description: |
| * Calls lpfc_get_hba_info() asking for just the mrpi count. |
| * If lpfc_get_hba_info() returns zero (failure) the buffer text is set |
| * to "Unknown" and the buffer length is returned, therefore the caller |
| * must check for "Unknown" in the buffer to detect a failure. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_max_rpi_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t cnt; |
| |
| if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, NULL, NULL, NULL)) |
| return snprintf(buf, PAGE_SIZE, "%d\n", cnt); |
| return snprintf(buf, PAGE_SIZE, "Unknown\n"); |
| } |
| |
| /** |
| * lpfc_used_rpi_show - Return maximum rpi minus available rpi |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: containing the used rpi count in decimal or "Unknown". |
| * |
| * Description: |
| * Calls lpfc_get_hba_info() asking for just the mrpi and arpi counts. |
| * If lpfc_get_hba_info() returns zero (failure) the buffer text is set |
| * to "Unknown" and the buffer length is returned, therefore the caller |
| * must check for "Unknown" in the buffer to detect a failure. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_used_rpi_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t cnt, acnt; |
| |
| if (lpfc_get_hba_info(phba, NULL, NULL, &cnt, &acnt, NULL, NULL)) |
| return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); |
| return snprintf(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 snprintf(buf, PAGE_SIZE, "%d\n", cnt); |
| return snprintf(buf, PAGE_SIZE, "Unknown\n"); |
| } |
| |
| /** |
| * lpfc_used_xri_show - Return maximum xpi minus the available xpi |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the used xri count in decimal or "Unknown". |
| * |
| * Description: |
| * Calls lpfc_get_hba_info() asking for just the mxri and axri counts. |
| * If lpfc_get_hba_info() returns zero (failure) the buffer text is set |
| * to "Unknown" and the buffer length is returned, therefore the caller |
| * must check for "Unknown" in the buffer to detect a failure. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_used_xri_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t cnt, acnt; |
| |
| if (lpfc_get_hba_info(phba, &cnt, &acnt, NULL, NULL, NULL, NULL)) |
| return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); |
| return snprintf(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 snprintf(buf, PAGE_SIZE, "%d\n", cnt); |
| return snprintf(buf, PAGE_SIZE, "Unknown\n"); |
| } |
| |
| /** |
| * lpfc_used_vpi_show - Return maximum vpi minus the available vpi |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the used vpi count in decimal or "Unknown". |
| * |
| * Description: |
| * Calls lpfc_get_hba_info() asking for just the mvpi and avpi counts. |
| * If lpfc_get_hba_info() returns zero (failure) the buffer text is set |
| * to "Unknown" and the buffer length is returned, therefore the caller |
| * must check for "Unknown" in the buffer to detect a failure. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_used_vpi_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| uint32_t cnt, acnt; |
| |
| if (lpfc_get_hba_info(phba, NULL, NULL, NULL, NULL, &cnt, &acnt)) |
| return snprintf(buf, PAGE_SIZE, "%d\n", (cnt - acnt)); |
| return snprintf(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 snprintf(buf, PAGE_SIZE, "NPIV Not Supported\n"); |
| if (vport->port_type == LPFC_PHYSICAL_PORT) |
| return snprintf(buf, PAGE_SIZE, "NPIV Physical\n"); |
| return snprintf(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 snprintf(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; |
| |
| 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)) { |
| creg_val = readl(phba->HCregaddr); |
| 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); |
| creg_val = readl(phba->HCregaddr); |
| creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING); |
| writel(creg_val, phba->HCregaddr); |
| readl(phba->HCregaddr); /* flush */ |
| } |
| |
| phba->cfg_poll = val; |
| |
| spin_unlock_irq(&phba->hbalock); |
| |
| return strlen(buf); |
| } |
| |
| /** |
| * lpfc_fips_level_show - Return the current FIPS level for the HBA |
| * @dev: class unused variable. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the module description text. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_fips_level_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_level); |
| } |
| |
| /** |
| * lpfc_fips_rev_show - Return the FIPS Spec revision for the HBA |
| * @dev: class unused variable. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the module description text. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_fips_rev_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", phba->fips_spec_rev); |
| } |
| |
| /** |
| * 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;\ |
| uint val = 0;\ |
| val = phba->cfg_##attr;\ |
| return snprintf(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 snprintf(buf, PAGE_SIZE, "%#x\n",\ |
| phba->cfg_##attr);\ |
| } |
| |
| /** |
| * lpfc_param_init - Initializes a cfg attribute |
| * |
| * Description: |
| * Macro that given an attr e.g. hba_queue_depth expands |
| * into a function with the name lpfc_hba_queue_depth_init. The macro also |
| * takes a default argument, a minimum and maximum argument. |
| * |
| * lpfc_##attr##_init: Initializes an attribute. |
| * @phba: pointer the the adapter structure. |
| * @val: integer attribute value. |
| * |
| * Validates the min and max values then sets the adapter config field |
| * accordingly, or uses the default if out of range and prints an error message. |
| * |
| * Returns: |
| * zero on success |
| * -EINVAL if default used |
| **/ |
| #define lpfc_param_init(attr, default, minval, maxval) \ |
| static int \ |
| lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \ |
| { \ |
| if (val >= minval && val <= maxval) {\ |
| phba->cfg_##attr = val;\ |
| return 0;\ |
| }\ |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, \ |
| "0449 lpfc_"#attr" attribute cannot be set to %d, "\ |
| "allowed range is ["#minval", "#maxval"]\n", val); \ |
| phba->cfg_##attr = default;\ |
| return -EINVAL;\ |
| } |
| |
| /** |
| * lpfc_param_set - Set a cfg attribute value |
| * |
| * Description: |
| * Macro that given an attr e.g. hba_queue_depth expands |
| * into a function with the name lpfc_hba_queue_depth_set |
| * |
| * lpfc_##attr##_set: Sets an attribute value. |
| * @phba: pointer the the adapter structure. |
| * @val: integer attribute value. |
| * |
| * Description: |
| * Validates the min and max values then sets the |
| * adapter config field if in the valid range. prints error message |
| * and does not set the parameter if invalid. |
| * |
| * Returns: |
| * zero on success |
| * -EINVAL if val is invalid |
| **/ |
| #define lpfc_param_set(attr, default, minval, maxval) \ |
| static int \ |
| lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \ |
| { \ |
| if (val >= minval && val <= maxval) {\ |
| 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;\ |
| uint val = 0;\ |
| val = vport->cfg_##attr;\ |
| return snprintf(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;\ |
| uint val = 0;\ |
| val = vport->cfg_##attr;\ |
| return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\ |
| } |
| |
| /** |
| * lpfc_vport_param_init - Initialize a vport cfg attribute |
| * |
| * Description: |
| * Macro that given an attr e.g. hba_queue_depth expands |
| * into a function with the name lpfc_hba_queue_depth_init. The macro also |
| * takes a default argument, a minimum and maximum argument. |
| * |
| * lpfc_##attr##_init: validates the min and max values then sets the |
| * adapter config field accordingly, or uses the default if out of range |
| * and prints an error message. |
| * @phba: pointer the the adapter structure. |
| * @val: integer attribute value. |
| * |
| * Returns: |
| * zero on success |
| * -EINVAL if default used |
| **/ |
| #define lpfc_vport_param_init(attr, default, minval, maxval) \ |
| static int \ |
| lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \ |
| { \ |
| if (val >= minval && val <= maxval) {\ |
| vport->cfg_##attr = val;\ |
| return 0;\ |
| }\ |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, \ |
| "0423 lpfc_"#attr" attribute cannot be set to %d, "\ |
| "allowed range is ["#minval", "#maxval"]\n", val); \ |
| vport->cfg_##attr = default;\ |
| return -EINVAL;\ |
| } |
| |
| /** |
| * lpfc_vport_param_set - Set a vport cfg attribute |
| * |
| * Description: |
| * Macro that given an attr e.g. hba_queue_depth expands |
| * into a function with the name lpfc_hba_queue_depth_set |
| * |
| * lpfc_##attr##_set: validates the min and max values then sets the |
| * adapter config field if in the valid range. prints error message |
| * and does not set the parameter if invalid. |
| * @phba: pointer the the adapter structure. |
| * @val: integer attribute value. |
| * |
| * Returns: |
| * zero on success |
| * -EINVAL if val is invalid |
| **/ |
| #define lpfc_vport_param_set(attr, default, minval, maxval) \ |
| static int \ |
| lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \ |
| { \ |
| if (val >= minval && val <= maxval) {\ |
| 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;\ |
| } |
| |
| |
| #define LPFC_ATTR(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_param_init(name, defval, minval, maxval) |
| |
| #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_param_show(name)\ |
| lpfc_param_init(name, defval, minval, maxval)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL) |
| |
| #define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_param_show(name)\ |
| lpfc_param_init(name, defval, minval, maxval)\ |
| lpfc_param_set(name, defval, minval, maxval)\ |
| lpfc_param_store(name)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\ |
| lpfc_##name##_show, lpfc_##name##_store) |
| |
| #define LPFC_ATTR_HEX_R(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_param_hex_show(name)\ |
| lpfc_param_init(name, defval, minval, maxval)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL) |
| |
| #define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_param_hex_show(name)\ |
| lpfc_param_init(name, defval, minval, maxval)\ |
| lpfc_param_set(name, defval, minval, maxval)\ |
| lpfc_param_store(name)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\ |
| lpfc_##name##_show, lpfc_##name##_store) |
| |
| #define LPFC_VPORT_ATTR(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_vport_param_init(name, defval, minval, maxval) |
| |
| #define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_vport_param_show(name)\ |
| lpfc_vport_param_init(name, defval, minval, maxval)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL) |
| |
| #define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_vport_param_show(name)\ |
| lpfc_vport_param_init(name, defval, minval, maxval)\ |
| lpfc_vport_param_set(name, defval, minval, maxval)\ |
| lpfc_vport_param_store(name)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\ |
| lpfc_##name##_show, lpfc_##name##_store) |
| |
| #define LPFC_VPORT_ATTR_HEX_R(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_vport_param_hex_show(name)\ |
| lpfc_vport_param_init(name, defval, minval, maxval)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL) |
| |
| #define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \ |
| static uint lpfc_##name = defval;\ |
| module_param(lpfc_##name, uint, 0);\ |
| MODULE_PARM_DESC(lpfc_##name, desc);\ |
| lpfc_vport_param_hex_show(name)\ |
| lpfc_vport_param_init(name, defval, minval, maxval)\ |
| lpfc_vport_param_set(name, defval, minval, maxval)\ |
| lpfc_vport_param_store(name)\ |
| static DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\ |
| lpfc_##name##_show, lpfc_##name##_store) |
| |
| static DEVICE_ATTR(bg_info, S_IRUGO, lpfc_bg_info_show, NULL); |
| static DEVICE_ATTR(bg_guard_err, S_IRUGO, lpfc_bg_guard_err_show, NULL); |
| static DEVICE_ATTR(bg_apptag_err, S_IRUGO, lpfc_bg_apptag_err_show, NULL); |
| static DEVICE_ATTR(bg_reftag_err, S_IRUGO, lpfc_bg_reftag_err_show, NULL); |
| static DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); |
| static DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); |
| static DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); |
| static DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); |
| static DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); |
| static DEVICE_ATTR(portnum, S_IRUGO, lpfc_vportnum_show, NULL); |
| static DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); |
| static DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); |
| static DEVICE_ATTR(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show, |
| lpfc_link_state_store); |
| static DEVICE_ATTR(option_rom_version, S_IRUGO, |
| lpfc_option_rom_version_show, NULL); |
| static DEVICE_ATTR(num_discovered_ports, S_IRUGO, |
| lpfc_num_discovered_ports_show, NULL); |
| static DEVICE_ATTR(menlo_mgmt_mode, S_IRUGO, lpfc_mlomgmt_show, NULL); |
| static DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); |
| static DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL); |
| static DEVICE_ATTR(lpfc_enable_fip, S_IRUGO, lpfc_enable_fip_show, NULL); |
| static DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, |
| lpfc_board_mode_show, lpfc_board_mode_store); |
| static DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); |
| static DEVICE_ATTR(max_vpi, S_IRUGO, lpfc_max_vpi_show, NULL); |
| static DEVICE_ATTR(used_vpi, S_IRUGO, lpfc_used_vpi_show, NULL); |
| static DEVICE_ATTR(max_rpi, S_IRUGO, lpfc_max_rpi_show, NULL); |
| static DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL); |
| static DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL); |
| static DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL); |
| static DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL); |
| static DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show, NULL); |
| static DEVICE_ATTR(lpfc_fips_level, S_IRUGO, lpfc_fips_level_show, NULL); |
| static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL); |
| |
| |
| static char *lpfc_soft_wwn_key = "C99G71SL8032A"; |
| |
| /** |
| * lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: containing the string lpfc_soft_wwn_key. |
| * @count: must be size of lpfc_soft_wwn_key. |
| * |
| * Returns: |
| * -EINVAL if the buffer does not contain lpfc_soft_wwn_key |
| * length of buf indicates success |
| **/ |
| static ssize_t |
| lpfc_soft_wwn_enable_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| unsigned int cnt = count; |
| |
| /* |
| * We're doing a simple sanity check for soft_wwpn setting. |
| * We require that the user write a specific key to enable |
| * the soft_wwpn attribute to be settable. Once the attribute |
| * is written, the enable key resets. If further updates are |
| * desired, the key must be written again to re-enable the |
| * attribute. |
| * |
| * The "key" is not secret - it is a hardcoded string shown |
| * here. The intent is to protect against the random user or |
| * application that is just writing attributes. |
| */ |
| |
| /* count may include a LF at end of string */ |
| if (buf[cnt-1] == '\n') |
| cnt--; |
| |
| if ((cnt != strlen(lpfc_soft_wwn_key)) || |
| (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) |
| return -EINVAL; |
| |
| phba->soft_wwn_enable = 1; |
| return count; |
| } |
| static DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL, |
| lpfc_soft_wwn_enable_store); |
| |
| /** |
| * lpfc_soft_wwpn_show - Return the cfg soft ww port name of the adapter |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the wwpn in hexadecimal. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_soft_wwpn_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| return snprintf(buf, PAGE_SIZE, "0x%llx\n", |
| (unsigned long long)phba->cfg_soft_wwpn); |
| } |
| |
| /** |
| * lpfc_soft_wwpn_store - Set the ww port name of the adapter |
| * @dev class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: contains the wwpn in hexadecimal. |
| * @count: number of wwpn bytes in buf |
| * |
| * Returns: |
| * -EACCES hba reset not enabled, adapter over temp |
| * -EINVAL soft wwn not enabled, count is invalid, invalid wwpn byte invalid |
| * -EIO error taking adapter offline or online |
| * value of count on success |
| **/ |
| static ssize_t |
| lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| struct completion online_compl; |
| int stat1=0, stat2=0; |
| unsigned int i, j, cnt=count; |
| u8 wwpn[8]; |
| |
| if (!phba->cfg_enable_hba_reset) |
| return -EACCES; |
| spin_lock_irq(&phba->hbalock); |
| if (phba->over_temp_state == HBA_OVER_TEMP) { |
| spin_unlock_irq(&phba->hbalock); |
| return -EACCES; |
| } |
| spin_unlock_irq(&phba->hbalock); |
| /* count may include a LF at end of string */ |
| if (buf[cnt-1] == '\n') |
| cnt--; |
| |
| if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) || |
| ((cnt == 17) && (*buf++ != 'x')) || |
| ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) |
| return -EINVAL; |
| |
| phba->soft_wwn_enable = 0; |
| |
| memset(wwpn, 0, sizeof(wwpn)); |
| |
| /* Validate and store the new name */ |
| for (i=0, j=0; i < 16; i++) { |
| int value; |
| |
| value = hex_to_bin(*buf++); |
| if (value >= 0) |
| j = (j << 4) | value; |
| else |
| return -EINVAL; |
| if (i % 2) { |
| wwpn[i/2] = j & 0xff; |
| j = 0; |
| } |
| } |
| phba->cfg_soft_wwpn = wwn_to_u64(wwpn); |
| fc_host_port_name(shost) = phba->cfg_soft_wwpn; |
| if (phba->cfg_soft_wwnn) |
| fc_host_node_name(shost) = phba->cfg_soft_wwnn; |
| |
| dev_printk(KERN_NOTICE, &phba->pcidev->dev, |
| "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); |
| |
| stat1 = lpfc_do_offline(phba, LPFC_EVT_OFFLINE); |
| if (stat1) |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0463 lpfc_soft_wwpn attribute set failed to " |
| "reinit adapter - %d\n", stat1); |
| init_completion(&online_compl); |
| lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE); |
| wait_for_completion(&online_compl); |
| if (stat2) |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "0464 lpfc_soft_wwpn attribute set failed to " |
| "reinit adapter - %d\n", stat2); |
| return (stat1 || stat2) ? -EIO : count; |
| } |
| static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\ |
| lpfc_soft_wwpn_show, lpfc_soft_wwpn_store); |
| |
| /** |
| * lpfc_soft_wwnn_show - Return the cfg soft ww node name for the adapter |
| * @dev: class device that is converted into a Scsi_host. |
| * @attr: device attribute, not used. |
| * @buf: on return contains the wwnn in hexadecimal. |
| * |
| * Returns: size of formatted string. |
| **/ |
| static ssize_t |
| lpfc_soft_wwnn_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| return snprintf(buf, PAGE_SIZE, "0x%llx\n", |
| (unsigned long long)phba->cfg_soft_wwnn); |
| } |
| |
| /** |
| * lpfc_soft_wwnn_store - sets the ww node name of the adapter |
| * @cdev: class device that is converted into a Scsi_host. |
| * @buf: contains the ww node name in hexadecimal. |
| * @count: number of wwnn bytes in buf. |
| * |
| * Returns: |
| * -EINVAL soft wwn not enabled, count is invalid, invalid wwnn byte invalid |
| * value of count on success |
| **/ |
| static ssize_t |
| lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba; |
| unsigned int i, j, cnt=count; |
| u8 wwnn[8]; |
| |
| /* count may include a LF at end of string */ |
| if (buf[cnt-1] == '\n') |
| cnt--; |
| |
| if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) || |
| ((cnt == 17) && (*buf++ != 'x')) || |
| ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) |
| return -EINVAL; |
| |
| /* |
| * Allow wwnn to be set many times, as long as the enable is set. |
| * However, once the wwpn is set, everything locks. |
| */ |
| |
| memset(wwnn, 0, sizeof(wwnn)); |
| |
| /* Validate and store the new name */ |
| for (i=0, j=0; i < 16; i++) { |
| int value; |
| |
| value = hex_to_bin(*buf++); |
| if (value >= 0) |
| j = (j << 4) | value; |
| else |
| return -EINVAL; |
| if (i % 2) { |
| wwnn[i/2] = j & 0xff; |
| j = 0; |
| } |
| } |
| phba->cfg_soft_wwnn = wwn_to_u64(wwnn); |
| |
| dev_printk(KERN_NOTICE, &phba->pcidev->dev, |
| "lpfc%d: soft_wwnn set. Value will take effect upon " |
| "setting of the soft_wwpn\n", phba->brd_no); |
| |
| return count; |
| } |
| static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\ |
| lpfc_soft_wwnn_show, lpfc_soft_wwnn_store); |
| |
| |
| static int lpfc_poll = 0; |
| module_param(lpfc_poll, int, 0); |
| 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(lpfc_poll, S_IRUGO | S_IWUSR, |
| lpfc_poll_show, lpfc_poll_store); |
| |
| int lpfc_sli_mode = 0; |
| module_param(lpfc_sli_mode, int, 0); |
| MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:" |
| " 0 - auto (SLI-3 if supported)," |
| " 2 - select SLI-2 even on SLI-3 capable HBAs," |
| " 3 - select SLI-3"); |
| |
| int lpfc_enable_npiv = 1; |
| module_param(lpfc_enable_npiv, int, 0); |
| MODULE_PARM_DESC(lpfc_enable_npiv, "Enable NPIV functionality"); |
| lpfc_param_show(enable_npiv); |
| lpfc_param_init(enable_npiv, 1, 0, 1); |
| static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_show, NULL); |
| |
| /* |
| # lpfc_suppress_link_up: Bring link up at initialization |
| # 0x0 = bring link up (issue MBX_INIT_LINK) |
| # 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK) |
| # 0x2 = never bring up link |
| # Default value is 0. |
| */ |
| LPFC_ATTR_R(suppress_link_up, LPFC_INITIALIZE_LINK, LPFC_INITIALIZE_LINK, |
| LPFC_DELAY_INIT_LINK_INDEFINITELY, |
| "Suppress Link Up at initialization"); |
| /* |
| # lpfc_cnt: Number of IOCBs allocated for ELS, CT, and ABTS |
| # 1 - (1024) |
| # 2 - (2048) |
| # 3 - (3072) |
| # 4 - (4096) |
| # 5 - (5120) |
| */ |
| static ssize_t |
| lpfc_iocb_hw_show(struct device *dev, struct device_attribute *attr, char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_hba *phba = ((struct lpfc_vport *) shost->hostdata)->phba; |
| |
| return snprintf(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; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", |
| phba->sli.ring[LPFC_ELS_RING].txq_max); |
| } |
| |
| 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; |
| |
| return snprintf(buf, PAGE_SIZE, "%d\n", |
| phba->sli.ring[LPFC_ELS_RING].txcmplq_max); |
| } |
| |
| static DEVICE_ATTR(txcmplq_hw, S_IRUGO, |
| lpfc_txcmplq_hw_show, NULL); |
| |
| int lpfc_iocb_cnt = 2; |
| module_param(lpfc_iocb_cnt, int, 1); |
| MODULE_PARM_DESC(lpfc_iocb_cnt, |
| "Number of IOCBs alloc for ELS, CT, and ABTS: 1k to 5k IOCBs"); |
| lpfc_param_show(iocb_cnt); |
| lpfc_param_init(iocb_cnt, 2, 1, 5); |
| static DEVICE_ATTR(lpfc_iocb_cnt, S_IRUGO, |
| lpfc_iocb_cnt_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 snprintf(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 nodev_tmo module " |
| "parameter because devloss_tmo is " |
| "set.\n"); |
| return 0; |
| } |
| |
| if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) { |
| vport->cfg_nodev_tmo = val; |
| vport->cfg_devloss_tmo = val; |
| return 0; |
| } |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0400 lpfc_nodev_tmo attribute cannot be set to" |
| " %d, allowed range is [%d, %d]\n", |
| val, LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO); |
| vport->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO; |
| return -EINVAL; |
| } |
| |
| /** |
| * lpfc_update_rport_devloss_tmo - Update dev loss tmo value |
| * @vport: lpfc vport structure pointer. |
| * |
| * Description: |
| * Update all the ndlp's dev loss tmo with the vport devloss tmo value. |
| **/ |
| static void |
| lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost; |
| struct lpfc_nodelist *ndlp; |
| |
| shost = lpfc_shost_from_vport(vport); |
| spin_lock_irq(shost->host_lock); |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) |
| if (NLP_CHK_NODE_ACT(ndlp) && ndlp->rport) |
| ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo; |
| spin_unlock_irq(shost->host_lock); |
| } |
| |
| /** |
| * lpfc_nodev_tmo_set - Set the vport nodev tmo and devloss tmo values |
| * @vport: lpfc vport structure pointer. |
| * @val: contains the tmo value. |
| * |
| * Description: |
| * If the devloss tmo is already set or the vport dev loss tmo has changed |
| * then a kernel error message is printed and zero is returned. |
| * Else if val is in range then nodev tmo and devloss tmo are set to val. |
| * Otherwise nodev tmo is set to the default value. |
| * |
| * Returns: |
| * zero if already set or if val is in range |
| * -EINVAL val out of range |
| **/ |
| static int |
| lpfc_nodev_tmo_set(struct lpfc_vport *vport, int val) |
| { |
| if (vport->dev_loss_tmo_changed || |
| (lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) { |
| lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, |
| "0401 Ignoring change to nodev_tmo " |
| "because 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(lpfc_nodev_tmo, S_IRUGO | S_IWUSR, |
| lpfc_nodev_tmo_show, lpfc_nodev_tmo_store); |
| |
| /* |
| # 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, 0); |
| 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(lpfc_devloss_tmo, S_IRUGO | S_IWUSR, |
| lpfc_devloss_tmo_show, lpfc_devloss_tmo_store); |
| |
| /* |
| # 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, 0, 0, 1, |
| "Deregister nameserver objects before LOGO"); |
| |
| /* |
| # lun_queue_depth: This parameter is used to limit the number of outstanding |
| # commands per FCP LUN. Value range is [1,128]. Default value is 30. |
| */ |
| LPFC_VPORT_ATTR_R(lun_queue_depth, 30, 1, 128, |
| "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. |
| */ |
| LPFC_VPORT_ATTR_R(tgt_queue_depth, 65535, 10, 65535, |
| "Max number of FCP commands we can queue to a specific target port"); |
| |
| /* |
| # 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, 0); |
| 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(lpfc_restrict_login, S_IRUGO | S_IWUSR, |
| lpfc_restrict_login_show, lpfc_restrict_login_store); |
| |
| /* |
| # 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_topology_set - Set the adapters topology field |
| * @phba: lpfc_hba pointer. |
| * @val: topology value. |
| * |
| * Description: |
| * If val is in a valid range then set the adapter's topology field and |
| * issue a lip; if the lip fails reset the topology to the old value. |
| * |
| * If the value is not in range log a kernel error message and return an error. |
| * |
| * Returns: |
| * zero if val is in range and lip okay |
| * non-zero return value from lpfc_issue_lip() |
| * -EINVAL val out of range |
| **/ |
| static ssize_t |
| lpfc_topology_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int val = 0; |
| int nolip = 0; |
| const char *val_buf = buf; |
| int err; |
| uint32_t prev_val; |
| |
| if (!strncmp(buf, "nolip ", strlen("nolip "))) { |
| nolip = 1; |
| val_buf = &buf[strlen("nolip ")]; |
| } |
| |
| if (!isdigit(val_buf[0])) |
| return -EINVAL; |
| if (sscanf(val_buf, "%i", &val) != 1) |
| return -EINVAL; |
| |
| if (val >= 0 && val <= 6) { |
| prev_val = phba->cfg_topology; |
| phba->cfg_topology = val; |
| if (nolip) |
| return strlen(buf); |
| |
| 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; |
| } |
| static int lpfc_topology = 0; |
| module_param(lpfc_topology, int, 0); |
| MODULE_PARM_DESC(lpfc_topology, "Select Fibre Channel topology"); |
| lpfc_param_show(topology) |
| lpfc_param_init(topology, 0, 0, 6) |
| static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR, |
| lpfc_topology_show, lpfc_topology_store); |
| |
| /** |
| * 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(lpfc_static_vport, S_IRUGO, |
| lpfc_static_vport_show, NULL); |
| |
| /** |
| * lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file |
| * @dev: Pointer to class device. |
| * @buf: Data buffer. |
| * @count: Size of the data buffer. |
| * |
| * This function get called when an user write to the lpfc_stat_data_ctrl |
| * sysfs file. This function parse the command written to the sysfs file |
| * and take appropriate action. These commands are used for controlling |
| * driver statistical data collection. |
| * Following are the command this function handles. |
| * |
| * setbucket <bucket_type> <base> <step> |
| * = Set the latency buckets. |
| * destroybucket = destroy all the buckets. |
| * start = start data collection |
| * stop = stop data collection |
| * reset = reset the collected data |
| **/ |
| static ssize_t |
| lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| #define LPFC_MAX_DATA_CTRL_LEN 1024 |
| static char bucket_data[LPFC_MAX_DATA_CTRL_LEN]; |
| unsigned long i; |
| char *str_ptr, *token; |
| struct lpfc_vport **vports; |
| struct Scsi_Host *v_shost; |
| char *bucket_type_str, *base_str, *step_str; |
| unsigned long base, step, bucket_type; |
| |
| if (!strncmp(buf, "setbucket", strlen("setbucket"))) { |
| if (strlen(buf) > (LPFC_MAX_DATA_CTRL_LEN - 1)) |
| return -EINVAL; |
| |
| strcpy(bucket_data, buf); |
| str_ptr = &bucket_data[0]; |
| /* Ignore this token - this is command token */ |
| token = strsep(&str_ptr, "\t "); |
| if (!token) |
| return -EINVAL; |
| |
| bucket_type_str = strsep(&str_ptr, "\t "); |
| if (!bucket_type_str) |
| return -EINVAL; |
| |
| if (!strncmp(bucket_type_str, "linear", strlen("linear"))) |
| bucket_type = LPFC_LINEAR_BUCKET; |
| else if (!strncmp(bucket_type_str, "power2", strlen("power2"))) |
| bucket_type = LPFC_POWER2_BUCKET; |
| else |
| return -EINVAL; |
| |
| base_str = strsep(&str_ptr, "\t "); |
| if (!base_str) |
| return -EINVAL; |
| base = simple_strtoul(base_str, NULL, 0); |
| |
| step_str = strsep(&str_ptr, "\t "); |
| if (!step_str) |
| return -EINVAL; |
| step = simple_strtoul(step_str, NULL, 0); |
| if (!step) |
| return -EINVAL; |
| |
| /* Block the data collection for every vport */ |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports == NULL) |
| return -ENOMEM; |
| |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| v_shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(v_shost->host_lock); |
| /* Block and reset data collection */ |
| vports[i]->stat_data_blocked = 1; |
| if (vports[i]->stat_data_enabled) |
| lpfc_vport_reset_stat_data(vports[i]); |
| spin_unlock_irq(v_shost->host_lock); |
| } |
| |
| /* Set the bucket attributes */ |
| phba->bucket_type = bucket_type; |
| phba->bucket_base = base; |
| phba->bucket_step = step; |
| |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| v_shost = lpfc_shost_from_vport(vports[i]); |
| |
| /* Unblock data collection */ |
| spin_lock_irq(v_shost->host_lock); |
| vports[i]->stat_data_blocked = 0; |
| spin_unlock_irq(v_shost->host_lock); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| return strlen(buf); |
| } |
| |
| if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) { |
| vports = lpfc_create_vport_work_array(phba); |
| if (vports == NULL) |
| return -ENOMEM; |
| |
| for (i = 0; i <= phba->max_vports && vports[i] != NULL; i++) { |
| v_shost = lpfc_shost_from_vport(vports[i]); |
| spin_lock_irq(shost->host_lock); |
| vports[i]->stat_data_blocked = 1; |
| lpfc_free_bucket(vport); |
| vport->stat_data_enabled = 0; |
| vports[i]->stat_data_blocked = 0; |
| spin_unlock_irq(shost->host_lock); |
| } |
| lpfc_destroy_vport_work_array(phba, vports); |
| phba->bucket_type = LPFC_NO_BUCKET; |
| phba->bucket_base = 0; |
| phba->bucket_step = 0; |
| return strlen(buf); |
| } |
| |
| if (!strncmp(buf, "start", strlen("start"))) { |
| /* If no buckets configured return error */ |
| if (phba->bucket_type == LPFC_NO_BUCKET) |
| return -EINVAL; |
| spin_lock_irq(shost->host_lock); |
| if (vport->stat_data_enabled) { |
| spin_unlock_irq(shost->host_lock); |
| return strlen(buf); |
| } |
| lpfc_alloc_bucket(vport); |
| vport->stat_data_enabled = 1; |
| spin_unlock_irq(shost->host_lock); |
| return strlen(buf); |
| } |
| |
| if (!strncmp(buf, "stop", strlen("stop"))) { |
| spin_lock_irq(shost->host_lock); |
| if (vport->stat_data_enabled == 0) { |
| spin_unlock_irq(shost->host_lock); |
| return strlen(buf); |
| } |
| lpfc_free_bucket(vport); |
| vport->stat_data_enabled = 0; |
| spin_unlock_irq(shost->host_lock); |
| return strlen(buf); |
| } |
| |
| if (!strncmp(buf, "reset", strlen("reset"))) { |
| if ((phba->bucket_type == LPFC_NO_BUCKET) |
| || !vport->stat_data_enabled) |
| return strlen(buf); |
| spin_lock_irq(shost->host_lock); |
| vport->stat_data_blocked = 1; |
| lpfc_vport_reset_stat_data(vport); |
| vport->stat_data_blocked = 0; |
| spin_unlock_irq(shost->host_lock); |
| return strlen(buf); |
| } |
| return -EINVAL; |
| } |
| |
| |
| /** |
| * lpfc_stat_data_ctrl_show - Read function for lpfc_stat_data_ctrl sysfs file |
| * @dev: Pointer to class device object. |
| * @buf: Data buffer. |
| * |
| * This function is the read call back function for |
| * lpfc_stat_data_ctrl sysfs file. This function report the |
| * current statistical data collection state. |
| **/ |
| static ssize_t |
| lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr, |
| char *buf) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int index = 0; |
| int i; |
| char *bucket_type; |
| unsigned long bucket_value; |
| |
| switch (phba->bucket_type) { |
| case LPFC_LINEAR_BUCKET: |
| bucket_type = "linear"; |
| break; |
| case LPFC_POWER2_BUCKET: |
| bucket_type = "power2"; |
| break; |
| default: |
| bucket_type = "No Bucket"; |
| break; |
| } |
| |
| sprintf(&buf[index], "Statistical Data enabled :%d, " |
| "blocked :%d, Bucket type :%s, Bucket base :%d," |
| " Bucket step :%d\nLatency Ranges :", |
| vport->stat_data_enabled, vport->stat_data_blocked, |
| bucket_type, phba->bucket_base, phba->bucket_step); |
| index = strlen(buf); |
| if (phba->bucket_type != LPFC_NO_BUCKET) { |
| for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { |
| if (phba->bucket_type == LPFC_LINEAR_BUCKET) |
| bucket_value = phba->bucket_base + |
| phba->bucket_step * i; |
| else |
| bucket_value = phba->bucket_base + |
| (1 << i) * phba->bucket_step; |
| |
| if (index + 10 > PAGE_SIZE) |
| break; |
| sprintf(&buf[index], "%08ld ", bucket_value); |
| index = strlen(buf); |
| } |
| } |
| sprintf(&buf[index], "\n"); |
| return strlen(buf); |
| } |
| |
| /* |
| * Sysfs attribute to control the statistical data collection. |
| */ |
| static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR, |
| lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store); |
| |
| /* |
| * lpfc_drvr_stat_data: sysfs attr to get driver statistical data. |
| */ |
| |
| /* |
| * Each Bucket takes 11 characters and 1 new line + 17 bytes WWN |
| * for each target. |
| */ |
| #define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18) |
| #define MAX_STAT_DATA_SIZE_PER_TARGET \ |
| STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT) |
| |
| |
| /** |
| * sysfs_drvr_stat_data_read - Read function for lpfc_drvr_stat_data attribute |
| * @filp: sysfs file |
| * @kobj: Pointer to the kernel object |
| * @bin_attr: Attribute object |
| * @buff: Buffer pointer |
| * @off: File offset |
| * @count: Buffer size |
| * |
| * This function is the read call back function for lpfc_drvr_stat_data |
| * sysfs file. This function export the statistical data to user |
| * applications. |
| **/ |
| static ssize_t |
| sysfs_drvr_stat_data_read(struct file *filp, struct kobject *kobj, |
| struct bin_attribute *bin_attr, |
| char *buf, loff_t off, size_t count) |
| { |
| struct device *dev = container_of(kobj, struct device, |
| kobj); |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int i = 0, index = 0; |
| unsigned long nport_index; |
| struct lpfc_nodelist *ndlp = NULL; |
| nport_index = (unsigned long)off / |
| MAX_STAT_DATA_SIZE_PER_TARGET; |
| |
| if (!vport->stat_data_enabled || vport->stat_data_blocked |
| || (phba->bucket_type == LPFC_NO_BUCKET)) |
| return 0; |
| |
| spin_lock_irq(shost->host_lock); |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data) |
| continue; |
| |
| if (nport_index > 0) { |
| nport_index--; |
| continue; |
| } |
| |
| if ((index + MAX_STAT_DATA_SIZE_PER_TARGET) |
| > count) |
| break; |
| |
| if (!ndlp->lat_data) |
| continue; |
| |
| /* Print the WWN */ |
| sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:", |
| ndlp->nlp_portname.u.wwn[0], |
| ndlp->nlp_portname.u.wwn[1], |
| ndlp->nlp_portname.u.wwn[2], |
| ndlp->nlp_portname.u.wwn[3], |
| ndlp->nlp_portname.u.wwn[4], |
| ndlp->nlp_portname.u.wwn[5], |
| ndlp->nlp_portname.u.wwn[6], |
| ndlp->nlp_portname.u.wwn[7]); |
| |
| index = strlen(buf); |
| |
| for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) { |
| sprintf(&buf[index], "%010u,", |
| ndlp->lat_data[i].cmd_count); |
| index = strlen(buf); |
| } |
| sprintf(&buf[index], "\n"); |
| index = strlen(buf); |
| } |
| spin_unlock_irq(shost->host_lock); |
| return index; |
| } |
| |
| static struct bin_attribute sysfs_drvr_stat_data_attr = { |
| .attr = { |
| .name = "lpfc_drvr_stat_data", |
| .mode = S_IRUSR, |
| }, |
| .size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET, |
| .read = sysfs_drvr_stat_data_read, |
| .write = NULL, |
| }; |
| |
| /* |
| # lpfc_link_speed: Link speed selection for initializing the Fibre Channel |
| # connection. |
| # 0 = auto select (default) |
| # 1 = 1 Gigabaud |
| # 2 = 2 Gigabaud |
| # 4 = 4 Gigabaud |
| # 8 = 8 Gigabaud |
| # Value range is [0,8]. Default value is 0. |
| */ |
| |
| /** |
| * lpfc_link_speed_set - Set the adapters link speed |
| * @phba: lpfc_hba pointer. |
| * @val: link speed value. |
| * |
| * Description: |
| * If val is in a valid range then set the adapter's link speed field and |
| * issue a lip; if the lip fails reset the link speed to the old value. |
| * |
| * Notes: |
| * If the value is not in range log a kernel error message and return an error. |
| * |
| * Returns: |
| * zero if val is in range and lip okay. |
| * non-zero return value from lpfc_issue_lip() |
| * -EINVAL val out of range |
| **/ |
| static ssize_t |
| lpfc_link_speed_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int val = 0; |
| int nolip = 0; |
| const char *val_buf = buf; |
| int err; |
| uint32_t prev_val; |
| |
| if (!strncmp(buf, "nolip ", strlen("nolip "))) { |
| nolip = 1; |
| val_buf = &buf[strlen("nolip ")]; |
| } |
| |
| if (!isdigit(val_buf[0])) |
| return -EINVAL; |
| if (sscanf(val_buf, "%i", &val) != 1) |
| return -EINVAL; |
| |
| if (((val == LINK_SPEED_1G) && !(phba->lmt & LMT_1Gb)) || |
| ((val == LINK_SPEED_2G) && !(phba->lmt & LMT_2Gb)) || |
| ((val == LINK_SPEED_4G) && !(phba->lmt & LMT_4Gb)) || |
| ((val == LINK_SPEED_8G) && !(phba->lmt & LMT_8Gb)) || |
| ((val == LINK_SPEED_10G) && !(phba->lmt & LMT_10Gb))) |
| return -EINVAL; |
| |
| if ((val >= 0 && val <= 8) |
| && (LPFC_LINK_SPEED_BITMAP & (1 << val))) { |
| 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; |
| } else |
| return strlen(buf); |
| } |
| |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "%d:0469 lpfc_link_speed attribute cannot be set to %d, " |
| "allowed range is [0, 8]\n", |
| phba->brd_no, val); |
| return -EINVAL; |
| } |
| |
| static int lpfc_link_speed = 0; |
| module_param(lpfc_link_speed, int, 0); |
| 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 >= 0 && val <= LPFC_MAX_LINK_SPEED) |
| && (LPFC_LINK_SPEED_BITMAP & (1 << val))) { |
| phba->cfg_link_speed = val; |
| return 0; |
| } |
| 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 = 0; |
| return -EINVAL; |
| } |
| |
| static DEVICE_ATTR(lpfc_link_speed, S_IRUGO | S_IWUSR, |
| lpfc_link_speed_show, lpfc_link_speed_store); |
| |
| /* |
| # lpfc_aer_support: Support PCIe device Advanced Error Reporting (AER) |
| # 0 = aer disabled or not supported |
| # 1 = aer supported and enabled (default) |
| # Value range is [0,1]. Default value is 1. |
| */ |
| |
| /** |
| * lpfc_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 the string "selective". |
| * @count: unused variable. |
| * |
| * Description: |
| * If the val is 1 and currently the device's AER capability was not |
| * enabled, invoke the kernel's enable AER helper routine, trying to |
| * enable the device's AER capability. If the helper routine enabling |
| * AER returns success, update the device's cfg_aer_support flag to |
| * indicate AER is supported by the device; otherwise, if the device |
| * AER capability is already enabled to support AER, then do nothing. |
| * |
| * If the val is 0 and currently the device's AER support was enabled, |
| * invoke the kernel's disable AER helper routine. After that, update |
| * the device's cfg_aer_support flag to indicate AER is not supported |
| * by the device; otherwise, if the device AER capability is already |
| * disabled from supporting AER, then do nothing. |
| * |
| * Returns: |
| * length of the buf on success if val is in range the intended mode |
| * is supported. |
| * -EINVAL if val out of range or intended mode is not supported. |
| **/ |
| static ssize_t |
| lpfc_aer_support_store(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int val = 0, rc = -EINVAL; |
| |
| if (!isdigit(buf[0])) |
| return -EINVAL; |
| if (sscanf(buf, "%i", &val) != 1) |
| return -EINVAL; |
| |
| switch (val) { |
| case 0: |
| if (phba->hba_flag & HBA_AER_ENABLED) { |
| rc = pci_disable_pcie_error_reporting(phba->pcidev); |
| if (!rc) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag &= ~HBA_AER_ENABLED; |
| spin_unlock_irq(&phba->hbalock); |
| phba->cfg_aer_support = 0; |
| rc = strlen(buf); |
| } else |
| rc = -EPERM; |
| } else { |
| phba->cfg_aer_support = 0; |
| rc = strlen(buf); |
| } |
| break; |
| case 1: |
| if (!(phba->hba_flag & HBA_AER_ENABLED)) { |
| rc = pci_enable_pcie_error_reporting(phba->pcidev); |
| if (!rc) { |
| spin_lock_irq(&phba->hbalock); |
| phba->hba_flag |= HBA_AER_ENABLED; |
| spin_unlock_irq(&phba->hbalock); |
| phba->cfg_aer_support = 1; |
| rc = strlen(buf); |
| } else |
| rc = -EPERM; |
| } else { |
| phba->cfg_aer_support = 1; |
| rc = strlen(buf); |
| } |
| break; |
| default: |
| rc = -EINVAL; |
| break; |
| } |
| return rc; |
| } |
| |
| static int lpfc_aer_support = 1; |
| module_param(lpfc_aer_support, int, 1); |
| MODULE_PARM_DESC(lpfc_aer_support, "Enable PCIe device AER support"); |
| lpfc_param_show(aer_support) |
| |
| /** |
| * lpfc_aer_support_init - Set the initial adapters aer support flag |
| * @phba: lpfc_hba pointer. |
| * @val: link speed value. |
| * |
| * Description: |
| * If val is in a valid range [0,1], then set the adapter's initial |
| * cfg_aer_support field. It will be up to the driver's probe_one |
| * routine to determine whether the device's AER support can be set |
| * or not. |
| * |
| * Notes: |
| * If the value is not in range log a kernel error message, and |
| * choose the default value of setting AER support and return. |
| * |
| * Returns: |
| * zero if val saved. |
| * -EINVAL val out of range |
| **/ |
| static int |
| lpfc_aer_support_init(struct lpfc_hba *phba, int val) |
| { |
| if (val == 0 || val == 1) { |
| phba->cfg_aer_support = val; |
| return 0; |
| } |
| lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| "2712 lpfc_aer_support attribute value %d out " |
| "of range, allowed values are 0|1, setting it " |
| "to default value of 1\n", val); |
| /* By default, try to enable AER on a device */ |
| phba->cfg_aer_support = 1; |
| return -EINVAL; |
| } |
| |
| static DEVICE_ATTR(lpfc_aer_support, S_IRUGO | S_IWUSR, |
| lpfc_aer_support_show, lpfc_aer_support_store); |
| |
| /** |
| * 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 the string "selective". |
| * @count: unused variable. |
| * |
| * Description: |
| * If the @buf contains 1 and the device currently has the AER support |
| * enabled, then invokes the kernel AER helper routine |
| * pci_cleanup_aer_uncorrect_error_status to clean up the uncorrectable |
| * error status register. |
| * |
| * Notes: |
| * |
| * Returns: |
| * -EINVAL if the buf does not contain the 1 or the device is not currently |
| * enabled with the AER support. |
| **/ |
| static ssize_t |
| lpfc_aer_cleanup_state(struct device *dev, struct device_attribute *attr, |
| const char *buf, size_t count) |
| { |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int val, rc = -1; |
| |
| if (!isdigit(buf[0])) |
| return -EINVAL; |
| if (sscanf(buf, "%i", &val) != 1) |
| return -EINVAL; |
| if (val != 1) |
| return -EINVAL; |
| |
| if (phba->hba_flag & HBA_AER_ENABLED) |
| rc = pci_cleanup_aer_uncorrect_error_status(phba->pcidev); |
| |
| if (rc == 0) |
| return strlen(buf); |
| else |
| return -EPERM; |
| } |
| |
| static DEVICE_ATTR(lpfc_aer_state_cleanup, S_IWUSR, NULL, |
| lpfc_aer_cleanup_state); |
| |
| /* |
| # lpfc_fcp_class: Determines FC class to use for the FCP protocol. |
| # Value range is [2,3]. Default value is 3. |
| */ |
| LPFC_VPORT_ATTR_R(fcp_class, 3, 2, 3, |
| "Select Fibre Channel class of service for FCP sequences"); |
| |
| /* |
| # lpfc_use_adisc: Use ADISC for FCP rediscovery instead of PLOGI. Value range |
| # is [0,1]. Default value is 0. |
| */ |
| LPFC_VPORT_ATTR_RW(use_adisc, 0, 0, 1, |
| "Use ADISC on rediscovery to authenticate FCP devices"); |
| |
| /* |
| # lpfc_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. |
| */ |
| static int lpfc_max_scsicmpl_time; |
| module_param(lpfc_max_scsicmpl_time, int, 0); |
| MODULE_PARM_DESC(lpfc_max_scsicmpl_time, |
| "Use command completion time to control queue depth"); |
| lpfc_vport_param_show(max_scsicmpl_time); |
| lpfc_vport_param_init(max_scsicmpl_time, 0, 0, 60000); |
| static int |
| lpfc_max_scsicmpl_time_set(struct lpfc_vport *vport, int val) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| struct lpfc_nodelist *ndlp, *next_ndlp; |
| |
| if (val == vport->cfg_max_scsicmpl_time) |
| return 0; |
| if ((val < 0) || (val > 60000)) |
| return -EINVAL; |
| vport->cfg_max_scsicmpl_time = val; |
| |
| spin_lock_irq(shost->host_lock); |
| list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) { |
| if (!NLP_CHK_NODE_ACT(ndlp)) |
| continue; |
| if (ndlp->nlp_state == NLP_STE_UNUSED_NODE) |
| continue; |
| ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth; |
| } |
| spin_unlock_irq(shost->host_lock); |
| return 0; |
| } |
| lpfc_vport_param_store(max_scsicmpl_time); |
| static DEVICE_ATTR(lpfc_max_scsicmpl_time, S_IRUGO | S_IWUSR, |
| lpfc_max_scsicmpl_time_show, |
| lpfc_max_scsicmpl_time_store); |
| |
| /* |
| # 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_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_fdmi_on: controls FDMI support. |
| # 0 = no FDMI support |
| # 1 = support FDMI without attribute of hostname |
| # 2 = support FDMI with attribute of hostname |
| # Value range [0,2]. Default value is 0. |
| */ |
| LPFC_VPORT_ATTR_RW(fdmi_on, 0, 0, 2, "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. |
| # Value range is [0,65535]. Default value is 255. |
| # NOTE: The SCSI layer might probe all allowed LUN on some old targets. |
| */ |
| LPFC_VPORT_ATTR_R(max_luns, 255, 0, 65535, "Maximum allowed LUN"); |
| |
| /* |
| # 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_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_fcp_imax: Set the maximum number of fast-path FCP interrupts per second |
| # |
| # Value range is [636,651042]. Default value is 10000. |
| */ |
| LPFC_ATTR_R(fcp_imax, LPFC_FP_DEF_IMAX, LPFC_MIM_IMAX, LPFC_DMULT_CONST, |
| "Set the maximum number of fast-path FCP interrupts per second"); |
| |
| /* |
| # lpfc_fcp_wq_count: Set the number of fast-path FCP work queues |
| # |
| # Value range is [1,31]. Default value is 4. |
| */ |
| LPFC_ATTR_R(fcp_wq_count, LPFC_FP_WQN_DEF, LPFC_FP_WQN_MIN, LPFC_FP_WQN_MAX, |
| "Set the number of fast-path FCP work queues, if possible"); |
| |
| /* |
| # lpfc_fcp_eq_count: Set the number of fast-path FCP event queues |
| # |
| # Value range is [1,7]. Default value is 1. |
| */ |
| LPFC_ATTR_R(fcp_eq_count, LPFC_FP_EQN_DEF, LPFC_FP_EQN_MIN, LPFC_FP_EQN_MAX, |
| "Set the number of fast-path FCP event queues, if possible"); |
| |
| /* |
| # lpfc_enable_hba_reset: Allow or prevent HBA resets to the hardware. |
| # 0 = HBA resets disabled |
| # 1 = HBA resets enabled (default) |
| # Value range is [0,1]. Default value is 1. |
| */ |
| LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver."); |
| |
| /* |
| # lpfc_enable_hba_heartbeat: Enable 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, 1, 0, 1, "Enable HBA Heartbeat."); |
| |
| /* |
| # lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF) |
| # 0 = BlockGuard disabled (default) |
| # 1 = BlockGuard enabled |
| # Value range is [0,1]. Default value is 0. |
| */ |
| LPFC_ATTR_R(enable_bg, 0, 0, 1, "Enable BlockGuard Support"); |
| |
| /* |
| # lpfc_prot_mask: i |
| # - Bit mask of host protection capabilities used to register with the |
| # SCSI mid-layer |
| # - Only meaningful if BG is turned on (lpfc_enable_bg=1). |
| # - Allows you to ultimately specify which profiles to use |
| # - Default will result in registering capabilities for all profiles. |
| # |
| */ |
| unsigned int lpfc_prot_mask = SHOST_DIF_TYPE1_PROTECTION; |
| |
| module_param(lpfc_prot_mask, uint, 0); |
| MODULE_PARM_DESC(lpfc_prot_mask, "host protection mask"); |
| |
| /* |
| # lpfc_prot_guard: i |
| # - Bit mask of protection guard types to register with the SCSI mid-layer |
| # - Guard types are currently either 1) IP checksum 2) T10-DIF CRC |
| # - Allows you to ultimately specify which profiles to use |
| # - Default will result in registering capabilities for all guard types |
| # |
| */ |
| unsigned char lpfc_prot_guard = SHOST_DIX_GUARD_IP; |
| module_param(lpfc_prot_guard, byte, 0); |
| MODULE_PARM_DESC(lpfc_prot_guard, "host protection guard type"); |
| |
| |
| /* |
| * lpfc_sg_seg_cnt - Initial Maximum DMA Segment Count |
| * This value can be set to values between 64 and 256. The default value is |
| * 64, but may be increased to allow for larger Max I/O sizes. The scsi layer |
| * will be allowed to request I/Os of sizes up to (MAX_SEG_COUNT * SEG_SIZE). |
| */ |
| LPFC_ATTR_R(sg_seg_cnt, LPFC_DEFAULT_SG_SEG_CNT, LPFC_DEFAULT_SG_SEG_CNT, |
| LPFC_MAX_SG_SEG_CNT, "Max Scatter Gather Segment Count"); |
| |
| LPFC_ATTR_R(prot_sg_seg_cnt, LPFC_DEFAULT_PROT_SG_SEG_CNT, |
| LPFC_DEFAULT_PROT_SG_SEG_CNT, LPFC_MAX_PROT_SG_SEG_CNT, |
| "Max Protection Scatter Gather Segment Count"); |
| |
| struct device_attribute *lpfc_hba_attrs[] = { |
| &dev_attr_bg_info, |
| &dev_attr_bg_guard_err, |
| &dev_attr_bg_apptag_err, |
| &dev_attr_bg_reftag_err, |
| &dev_attr_info, |
| &dev_attr_serialnum, |
| &dev_attr_modeldesc, |
| &dev_attr_modelname, |
| &dev_attr_programtype, |
| &dev_attr_portnum, |
| &dev_attr_fwrev, |
| &dev_attr_hdw, |
| &dev_attr_option_rom_version, |
| &dev_attr_link_state, |
| &dev_attr_num_discovered_ports, |
| &dev_attr_menlo_mgmt_mode, |
| &dev_attr_lpfc_drvr_version, |
| &dev_attr_lpfc_enable_fip, |
| &dev_attr_lpfc_temp_sensor, |
| &dev_attr_lpfc_log_verbose, |
| &dev_attr_lpfc_lun_queue_depth, |
| &dev_attr_lpfc_tgt_queue_depth, |
| &dev_attr_lpfc_hba_queue_depth, |
| &dev_attr_lpfc_peer_port_login, |
| &dev_attr_lpfc_nodev_tmo, |
| &dev_attr_lpfc_devloss_tmo, |
| &dev_attr_lpfc_fcp_class, |
| &dev_attr_lpfc_use_adisc, |
| &dev_attr_lpfc_ack0, |
| &dev_attr_lpfc_topology, |
| &dev_attr_lpfc_scan_down, |
| &dev_attr_lpfc_link_speed, |
| &dev_attr_lpfc_cr_delay, |
| &dev_attr_lpfc_cr_count, |
| &dev_attr_lpfc_multi_ring_support, |
| &dev_attr_lpfc_multi_ring_rctl, |
| &dev_attr_lpfc_multi_ring_type, |
| &dev_attr_lpfc_fdmi_on, |
| &dev_attr_lpfc_max_luns, |
| &dev_attr_lpfc_enable_npiv, |
| &dev_attr_nport_evt_cnt, |
| &dev_attr_board_mode, |
| &dev_attr_max_vpi, |
| &dev_attr_used_vpi, |
| &dev_attr_max_rpi, |
| &dev_attr_used_rpi, |
| &dev_attr_max_xri, |
| &dev_attr_used_xri, |
| &dev_attr_npiv_info, |
| &dev_attr_issue_reset, |
| &dev_attr_lpfc_poll, |
| &dev_attr_lpfc_poll_tmo, |
| &dev_attr_lpfc_use_msi, |
| &dev_attr_lpfc_fcp_imax, |
| &dev_attr_lpfc_fcp_wq_count, |
| &dev_attr_lpfc_fcp_eq_count, |
| &dev_attr_lpfc_enable_bg, |
| &dev_attr_lpfc_soft_wwnn, |
| &dev_attr_lpfc_soft_wwpn, |
| &dev_attr_lpfc_soft_wwn_enable, |
| &dev_attr_lpfc_enable_hba_reset, |
| &dev_attr_lpfc_enable_hba_heartbeat, |
| &dev_attr_lpfc_sg_seg_cnt, |
| &dev_attr_lpfc_max_scsicmpl_time, |
| &dev_attr_lpfc_stat_data_ctrl, |
| &dev_attr_lpfc_prot_sg_seg_cnt, |
| &dev_attr_lpfc_aer_support, |
| &dev_attr_lpfc_aer_state_cleanup, |
| &dev_attr_lpfc_suppress_link_up, |
| &dev_attr_lpfc_iocb_cnt, |
| &dev_attr_iocb_hw, |
| &dev_attr_txq_hw, |
| &dev_attr_txcmplq_hw, |
| &dev_attr_lpfc_fips_level, |
| &dev_attr_lpfc_fips_rev, |
| NULL, |
| }; |
| |
| struct device_attribute *lpfc_vport_attrs[] = { |
| &dev_attr_info, |
| &dev_attr_link_state, |
| &dev_attr_num_discovered_ports, |
| &dev_attr_lpfc_drvr_version, |
| &dev_attr_lpfc_log_verbose, |
| &dev_attr_lpfc_lun_queue_depth, |
| &dev_attr_lpfc_tgt_queue_depth, |
| &dev_attr_lpfc_nodev_tmo, |
| &dev_attr_lpfc_devloss_tmo, |
| &dev_attr_lpfc_hba_queue_depth, |
| &dev_attr_lpfc_peer_port_login, |
| &dev_attr_lpfc_restrict_login, |
| &dev_attr_lpfc_fcp_class, |
| &dev_attr_lpfc_use_adisc, |
| &dev_attr_lpfc_fdmi_on, |
| &dev_attr_lpfc_max_luns, |
| &dev_attr_nport_evt_cnt, |
| &dev_attr_npiv_info, |
| &dev_attr_lpfc_enable_da_id, |
| &dev_attr_lpfc_max_scsicmpl_time, |
| &dev_attr_lpfc_stat_data_ctrl, |
| &dev_attr_lpfc_static_vport, |
| &dev_attr_lpfc_fips_level, |
| &dev_attr_lpfc_fips_rev, |
| NULL, |
| }; |
| |
| /** |
| * sysfs_ctlreg_write - Write method for writing to ctlreg |
| * @filp: open sysfs file |
| * @kobj: kernel kobject that contains the kernel class device. |
| * @bin_attr: kernel attributes passed to us. |
| * @buf: contains the data to be written to the adapter IOREG space. |
| * @off: offset into buffer to beginning of data. |
| * @count: bytes to transfer. |
| * |
| * Description: |
| * Accessed via /sys/class/scsi_host/hostxxx/ctlreg. |
| * Uses the adapter io control registers to send buf contents to the adapter. |
| * |
| * Returns: |
| * -ERANGE off and count combo out of range |
| * -EINVAL off, count or buff address invalid |
| * -EPERM adapter is offline |
| * value of count, buf contents written |
| **/ |
| static ssize_t |
| sysfs_ctlreg_write(struct file *filp, struct kobject *kobj, |
| struct bin_attribute *bin_attr, |
| char *buf, loff_t off, size_t count) |
| { |
| size_t buf_off; |
| struct device *dev = container_of(kobj, struct device, kobj); |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| if (phba->sli_rev >= LPFC_SLI_REV4) |
| return -EPERM; |
| |
| if ((off + count) > FF_REG_AREA_SIZE) |
| return -ERANGE; |
| |
| if (count == 0) return 0; |
| |
| if (off % 4 || count % 4 || (unsigned long)buf % 4) |
| return -EINVAL; |
| |
| if (!(vport->fc_flag & FC_OFFLINE_MODE)) { |
| return -EPERM; |
| } |
| |
| spin_lock_irq(&phba->hbalock); |
| for (buf_off = 0; buf_off < count; buf_off += sizeof(uint32_t)) |
| writel(*((uint32_t *)(buf + buf_off)), |
| 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_idle - frees the sysfs mailbox |
| * @phba: lpfc_hba pointer |
| **/ |
| static void |
| sysfs_mbox_idle(struct lpfc_hba *phba) |
| { |
| phba->sysfs_mbox.state = SMBOX_IDLE; |
| phba->sysfs_mbox.offset = 0; |
| |
| if (phba->sysfs_mbox.mbox) { |
| mempool_free(phba->sysfs_mbox.mbox, |
| phba->mbox_mem_pool); |
| phba->sysfs_mbox.mbox = NULL; |
| } |
| } |
| |
| /** |
| * 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: |
| * Accessed via /sys/class/scsi_host/hostxxx/mbox. |
| * Uses the sysfs mbox to send buf contents to the adapter. |
| * |
| * Returns: |
| * -ERANGE off and count combo out of range |
| * -EINVAL off, count or buff address invalid |
| * zero if count is zero |
| * -EPERM adapter is offline |
| * -ENOMEM failed to allocate memory for the mail box |
| * -EAGAIN offset, state or mbox is NULL |
| * count number of bytes transferred |
| **/ |
| 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) |
| { |
| 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; |
| struct lpfcMboxq *mbox = NULL; |
| |
| if ((count + off) > MAILBOX_CMD_SIZE) |
| return -ERANGE; |
| |
| if (off % 4 || count % 4 || (unsigned long)buf % 4) |
| return -EINVAL; |
| |
| if (count == 0) |
| return 0; |
| |
| if (off == 0) { |
| mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!mbox) |
| return -ENOMEM; |
| memset(mbox, 0, sizeof (LPFC_MBOXQ_t)); |
| } |
| |
| spin_lock_irq(&phba->hbalock); |
| |
| if (off == 0) { |
| if (phba->sysfs_mbox.mbox) |
| mempool_free(mbox, phba->mbox_mem_pool); |
| else |
| phba->sysfs_mbox.mbox = mbox; |
| phba->sysfs_mbox.state = SMBOX_WRITING; |
| } else { |
| if (phba->sysfs_mbox.state != SMBOX_WRITING || |
| phba->sysfs_mbox.offset != off || |
| phba->sysfs_mbox.mbox == NULL) { |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EAGAIN; |
| } |
| } |
| |
| memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off, |
| buf, count); |
| |
| phba->sysfs_mbox.offset = off + count; |
| |
| spin_unlock_irq(&phba->hbalock); |
| |
| return count; |
| } |
| |
| /** |
| * 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: |
| * Accessed via /sys/class/scsi_host/hostxxx/mbox. |
| * Uses the sysfs mbox to receive data from to the adapter. |
| * |
| * Returns: |
| * -ERANGE off greater than mailbox command size |
| * -EINVAL off, count or buff address invalid |
| * zero if off and count are zero |
| * -EACCES adapter over temp |
| * -EPERM garbage can value to catch a multitude of errors |
| * -EAGAIN management IO not permitted, state or off error |
| * -ETIME mailbox timeout |
| * -ENODEV mailbox error |
| * count number of bytes transferred |
| **/ |
| 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) |
| { |
| struct device *dev = container_of(kobj, struct device, kobj); |
| struct Scsi_Host *shost = class_to_shost(dev); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| int rc; |
| MAILBOX_t *pmb; |
| |
| if (off > MAILBOX_CMD_SIZE) |
| return -ERANGE; |
| |
| if ((count + off) > MAILBOX_CMD_SIZE) |
| count = MAILBOX_CMD_SIZE - off; |
| |
| if (off % 4 || count % 4 || (unsigned long)buf % 4) |
| return -EINVAL; |
| |
| if (off && count == 0) |
| return 0; |
| |
| spin_lock_irq(&phba->hbalock); |
| |
| if (phba->over_temp_state == HBA_OVER_TEMP) { |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EACCES; |
| } |
| |
| if (off == 0 && |
| phba->sysfs_mbox.state == SMBOX_WRITING && |
| phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) { |
| pmb = &phba->sysfs_mbox.mbox->u.mb; |
| switch (pmb->mbxCommand) { |
| /* Offline only */ |
| case MBX_INIT_LINK: |
| case MBX_DOWN_LINK: |
| case MBX_CONFIG_LINK: |
| case MBX_CONFIG_RING: |
| case MBX_RESET_RING: |
| case MBX_UNREG_LOGIN: |
| case MBX_CLEAR_LA: |
| case MBX_DUMP_CONTEXT: |
| case MBX_RUN_DIAGS: |
| case MBX_RESTART: |
| case MBX_SET_MASK: |
| case MBX_SET_DEBUG: |
| if (!(vport->fc_flag & FC_OFFLINE_MODE)) { |
| printk(KERN_WARNING "mbox_read:Command 0x%x " |
| "is illegal in on-line state\n", |
| pmb->mbxCommand); |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EPERM; |
| } |
| case MBX_WRITE_NV: |
| case MBX_WRITE_VPARMS: |
| case MBX_LOAD_SM: |
| case MBX_READ_NV: |
| case MBX_READ_CONFIG: |
| case MBX_READ_RCONFIG: |
| case MBX_READ_STATUS: |
| case MBX_READ_XRI: |
| case MBX_READ_REV: |
| case MBX_READ_LNK_STAT: |
| case MBX_DUMP_MEMORY: |
| case MBX_DOWN_LOAD: |
| case MBX_UPDATE_CFG: |
| case MBX_KILL_BOARD: |
| case MBX_LOAD_AREA: |
| case MBX_LOAD_EXP_ROM: |
| case MBX_BEACON: |
| case MBX_DEL_LD_ENTRY: |
| case MBX_SET_VARIABLE: |
| case MBX_WRITE_WWN: |
| case MBX_PORT_CAPABILITIES: |
| case MBX_PORT_IOV_CONTROL: |
| break; |
| case MBX_SECURITY_MGMT: |
| case MBX_AUTH_PORT: |
| if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) { |
| printk(KERN_WARNING "mbox_read:Command 0x%x " |
| "is not permitted\n", pmb->mbxCommand); |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EPERM; |
| } |
| break; |
| case MBX_READ_SPARM64: |
| case MBX_READ_LA: |
| case MBX_READ_LA64: |
| case MBX_REG_LOGIN: |
| case MBX_REG_LOGIN64: |
| case MBX_CONFIG_PORT: |
| case MBX_RUN_BIU_DIAG: |
| printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n", |
| pmb->mbxCommand); |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EPERM; |
| default: |
| printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n", |
| pmb->mbxCommand); |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EPERM; |
| } |
| |
| /* If HBA encountered an error attention, allow only DUMP |
| * or RESTART mailbox commands until the HBA is restarted. |
| */ |
| if (phba->pport->stopped && |
| pmb->mbxCommand != MBX_DUMP_MEMORY && |
| pmb->mbxCommand != MBX_RESTART && |
| pmb->mbxCommand != MBX_WRITE_VPARMS && |
| pmb->mbxCommand != MBX_WRITE_WWN) |
| lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX, |
| "1259 mbox: Issued mailbox cmd " |
| "0x%x while in stopped state.\n", |
| pmb->mbxCommand); |
| |
| phba->sysfs_mbox.mbox->vport = vport; |
| |
| /* Don't allow mailbox commands to be sent when blocked |
| * or when in the middle of discovery |
| */ |
| if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) { |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EAGAIN; |
| } |
| |
| if ((vport->fc_flag & FC_OFFLINE_MODE) || |
| (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) { |
| |
| spin_unlock_irq(&phba->hbalock); |
| rc = lpfc_sli_issue_mbox (phba, |
| phba->sysfs_mbox.mbox, |
| MBX_POLL); |
| spin_lock_irq(&phba->hbalock); |
| |
| } else { |
| spin_unlock_irq(&phba->hbalock); |
| rc = lpfc_sli_issue_mbox_wait (phba, |
| phba->sysfs_mbox.mbox, |
| lpfc_mbox_tmo_val(phba, pmb->mbxCommand) * HZ); |
| spin_lock_irq(&phba->hbalock); |
| } |
| |
| if (rc != MBX_SUCCESS) { |
| if (rc == MBX_TIMEOUT) { |
| phba->sysfs_mbox.mbox = NULL; |
| } |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV; |
| } |
| phba->sysfs_mbox.state = SMBOX_READING; |
| } |
| else if (phba->sysfs_mbox.offset != off || |
| phba->sysfs_mbox.state != SMBOX_READING) { |
| printk(KERN_WARNING "mbox_read: Bad State\n"); |
| sysfs_mbox_idle(phba); |
| spin_unlock_irq(&phba->hbalock); |
| return -EAGAIN; |
| } |
| |
| memcpy(buf, (uint8_t *) &pmb + off, count); |
| |
| phba->sysfs_mbox.offset = off + count; |
| |
| if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE) |
| sysfs_mbox_idle(phba); |
| |
| spin_unlock_irq(&phba->hbalock); |
| |
| return count; |
| } |
| |
| static struct bin_attribute sysfs_mbox_attr = { |
| .attr = { |
| .name = "mbox", |
| .mode = S_IRUSR | S_IWUSR, |
| }, |
| .size = MAILBOX_CMD_SIZE, |
| .read = sysfs_mbox_read, |
| .write = sysfs_mbox_write, |
| }; |
| |
| /** |
| * lpfc_alloc_sysfs_attr - Creates the ctlreg and mbox entries |
| * @vport: address of lpfc vport structure. |
| * |
| * Return codes: |
| * zero on success |
| * error return code from sysfs_create_bin_file() |
| **/ |
| int |
| lpfc_alloc_sysfs_attr(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| int error; |
| |
| error = sysfs_create_bin_file(&shost->shost_dev.kobj, |
| &sysfs_drvr_stat_data_attr); |
| |
| /* Virtual ports do not need ctrl_reg and mbox */ |
| if (error || vport->port_type == LPFC_NPIV_PORT) |
| goto out; |
| |
| error = sysfs_create_bin_file(&shost->shost_dev.kobj, |
| &sysfs_ctlreg_attr); |
| if (error) |
| goto out_remove_stat_attr; |
| |
| error = sysfs_create_bin_file(&shost->shost_dev.kobj, |
| &sysfs_mbox_attr); |
| if (error) |
| goto out_remove_ctlreg_attr; |
| |
| return 0; |
| out_remove_ctlreg_attr: |
| sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); |
| out_remove_stat_attr: |
| sysfs_remove_bin_file(&shost->shost_dev.kobj, |
| &sysfs_drvr_stat_data_attr); |
| out: |
| return error; |
| } |
| |
| /** |
| * lpfc_free_sysfs_attr - Removes the ctlreg and mbox entries |
| * @vport: address of lpfc vport structure. |
| **/ |
| void |
| lpfc_free_sysfs_attr(struct lpfc_vport *vport) |
| { |
| struct Scsi_Host *shost = lpfc_shost_from_vport(vport); |
| sysfs_remove_bin_file(&shost->shost_dev.kobj, |
| &sysfs_drvr_stat_data_attr); |
| /* Virtual ports do not need ctrl_reg and mbox */ |
| if (vport->port_type == LPFC_NPIV_PORT) |
| return; |
| sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr); |
| sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr); |
| } |
| |
| |
| /* |
| * Dynamic FC Host Attributes Support |
| */ |
| |
| /** |
| * lpfc_get_host_port_id - Copy the vport DID into the scsi host port id |
| * @shost: kernel scsi host pointer. |
| **/ |
| static void |
| lpfc_get_host_port_id(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| |
| /* note: fc_myDID already in cpu endianness */ |
| fc_host_port_id(shost) = vport->fc_myDID; |
| } |
| |
| /** |
| * lpfc_get_host_port_type - Set the value of the scsi host port type |
| * @shost: kernel scsi host pointer. |
| **/ |
| static void |
| lpfc_get_host_port_type(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| spin_lock_irq(shost->host_lock); |
| |
| if (vport->port_type == LPFC_NPIV_PORT) { |
| fc_host_port_type(shost) = FC_PORTTYPE_NPIV; |
| } else if (lpfc_is_link_up(phba)) { |
| if (phba->fc_topology == TOPOLOGY_LOOP) { |
| if (vport->fc_flag & FC_PUBLIC_LOOP) |
| fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; |
| else |
| fc_host_port_type(shost) = FC_PORTTYPE_LPORT; |
| } else { |
| if (vport->fc_flag & FC_FABRIC) |
| fc_host_port_type(shost) = FC_PORTTYPE_NPORT; |
| else |
| fc_host_port_type(shost) = FC_PORTTYPE_PTP; |
| } |
| } else |
| fc_host_port_type(shost) = FC_PORTTYPE_UNKNOWN; |
| |
| spin_unlock_irq(shost->host_lock); |
| } |
| |
| /** |
| * lpfc_get_host_port_state - Set the value of the scsi host port state |
| * @shost: kernel scsi host pointer. |
| **/ |
| static void |
| lpfc_get_host_port_state(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| spin_lock_irq(shost->host_lock); |
| |
| if (vport->fc_flag & FC_OFFLINE_MODE) |
| fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; |
| else { |
| switch (phba->link_state) { |
| case LPFC_LINK_UNKNOWN: |
| case LPFC_LINK_DOWN: |
| fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; |
| break; |
| case LPFC_LINK_UP: |
| case LPFC_CLEAR_LA: |
| case LPFC_HBA_READY: |
| /* Links up, beyond this port_type reports state */ |
| fc_host_port_state(shost) = FC_PORTSTATE_ONLINE; |
| break; |
| case LPFC_HBA_ERROR: |
| fc_host_port_state(shost) = FC_PORTSTATE_ERROR; |
| break; |
| default: |
| fc_host_port_state(shost) = FC_PORTSTATE_UNKNOWN; |
| break; |
| } |
| } |
| |
| spin_unlock_irq(shost->host_lock); |
| } |
| |
| /** |
| * lpfc_get_host_speed - Set the value of the scsi host speed |
| * @shost: kernel scsi host pointer. |
| **/ |
| static void |
| lpfc_get_host_speed(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| |
| spin_lock_irq(shost->host_lock); |
| |
| if (lpfc_is_link_up(phba)) { |
| switch(phba->fc_linkspeed) { |
| case LA_1GHZ_LINK: |
| fc_host_speed(shost) = FC_PORTSPEED_1GBIT; |
| break; |
| case LA_2GHZ_LINK: |
| fc_host_speed(shost) = FC_PORTSPEED_2GBIT; |
| break; |
| case LA_4GHZ_LINK: |
| fc_host_speed(shost) = FC_PORTSPEED_4GBIT; |
| break; |
| case LA_8GHZ_LINK: |
| fc_host_speed(shost) = FC_PORTSPEED_8GBIT; |
| break; |
| case LA_10GHZ_LINK: |
| fc_host_speed(shost) = FC_PORTSPEED_10GBIT; |
| break; |
| default: |
| fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; |
| break; |
| } |
| } else |
| fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; |
| |
| spin_unlock_irq(shost->host_lock); |
| } |
| |
| /** |
| * lpfc_get_host_fabric_name - Set the value of the scsi host fabric name |
| * @shost: kernel scsi host pointer. |
| **/ |
| static void |
| lpfc_get_host_fabric_name (struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| u64 node_name; |
| |
| spin_lock_irq(shost->host_lock); |
| |
| if ((vport->fc_flag & FC_FABRIC) || |
| ((phba->fc_topology == TOPOLOGY_LOOP) && |
| (vport->fc_flag & FC_PUBLIC_LOOP))) |
| node_name = wwn_to_u64(phba->fc_fabparam.nodeName.u.wwn); |
| else |
| /* fabric is local port if there is no F/FL_Port */ |
| node_name = 0; |
| |
| spin_unlock_irq(shost->host_lock); |
| |
| fc_host_fabric_name(shost) = node_name; |
| } |
| |
| /** |
| * lpfc_get_stats - Return statistical information about the adapter |
| * @shost: kernel scsi host pointer. |
| * |
| * Notes: |
| * NULL on error for link down, no mbox pool, sli2 active, |
| * management not allowed, memory allocation error, or mbox error. |
| * |
| * Returns: |
| * NULL for error |
| * address of the adapter host statistics |
| **/ |
| static struct fc_host_statistics * |
| lpfc_get_stats(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_sli *psli = &phba->sli; |
| struct fc_host_statistics *hs = &phba->link_stats; |
| struct lpfc_lnk_stat * lso = &psli->lnk_stat_offsets; |
| LPFC_MBOXQ_t *pmboxq; |
| MAILBOX_t *pmb; |
| unsigned long seconds; |
| int rc = 0; |
| |
| /* |
| * prevent udev from issuing mailbox commands until the port is |
| * configured. |
| */ |
| if (phba->link_state < LPFC_LINK_DOWN || |
| !phba->mbox_mem_pool || |
| (phba->sli.sli_flag & LPFC_SLI_ACTIVE) == 0) |
| return NULL; |
| |
| if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) |
| return NULL; |
| |
| pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmboxq) |
| return NULL; |
| memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); |
| |
| pmb = &pmboxq->u.mb; |
| pmb->mbxCommand = MBX_READ_STATUS; |
| pmb->mbxOwner = OWN_HOST; |
| pmboxq->context1 = NULL; |
| pmboxq->vport = vport; |
| |
| if (vport->fc_flag & FC_OFFLINE_MODE) |
| rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| else |
| rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); |
| |
| if (rc != MBX_SUCCESS) { |
| if (rc != MBX_TIMEOUT) |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return NULL; |
| } |
| |
| memset(hs, 0, sizeof (struct fc_host_statistics)); |
| |
| hs->tx_frames = pmb->un.varRdStatus.xmitFrameCnt; |
| hs->tx_words = (pmb->un.varRdStatus.xmitByteCnt * 256); |
| hs->rx_frames = pmb->un.varRdStatus.rcvFrameCnt; |
| hs->rx_words = (pmb->un.varRdStatus.rcvByteCnt * 256); |
| |
| memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); |
| pmb->mbxCommand = MBX_READ_LNK_STAT; |
| pmb->mbxOwner = OWN_HOST; |
| pmboxq->context1 = NULL; |
| pmboxq->vport = vport; |
| |
| if (vport->fc_flag & FC_OFFLINE_MODE) |
| rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| else |
| rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); |
| |
| if (rc != MBX_SUCCESS) { |
| if (rc != MBX_TIMEOUT) |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return NULL; |
| } |
| |
| hs->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; |
| hs->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; |
| hs->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; |
| hs->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; |
| hs->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; |
| hs->invalid_crc_count = pmb->un.varRdLnk.crcCnt; |
| hs->error_frames = pmb->un.varRdLnk.crcCnt; |
| |
| hs->link_failure_count -= lso->link_failure_count; |
| hs->loss_of_sync_count -= lso->loss_of_sync_count; |
| hs->loss_of_signal_count -= lso->loss_of_signal_count; |
| hs->prim_seq_protocol_err_count -= lso->prim_seq_protocol_err_count; |
| hs->invalid_tx_word_count -= lso->invalid_tx_word_count; |
| hs->invalid_crc_count -= lso->invalid_crc_count; |
| hs->error_frames -= lso->error_frames; |
| |
| if (phba->hba_flag & HBA_FCOE_SUPPORT) { |
| hs->lip_count = -1; |
| hs->nos_count = (phba->link_events >> 1); |
| hs->nos_count -= lso->link_events; |
| } else if (phba->fc_topology == 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; |
| |
| seconds = get_seconds(); |
| if (seconds < psli->stats_start) |
| hs->seconds_since_last_reset = seconds + |
| ((unsigned long)-1 - psli->stats_start); |
| else |
| hs->seconds_since_last_reset = seconds - psli->stats_start; |
| |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| |
| return hs; |
| } |
| |
| /** |
| * lpfc_reset_stats - Copy the adapter link stats information |
| * @shost: kernel scsi host pointer. |
| **/ |
| static void |
| lpfc_reset_stats(struct Scsi_Host *shost) |
| { |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_hba *phba = vport->phba; |
| struct lpfc_sli *psli = &phba->sli; |
| struct lpfc_lnk_stat *lso = &psli->lnk_stat_offsets; |
| LPFC_MBOXQ_t *pmboxq; |
| MAILBOX_t *pmb; |
| int rc = 0; |
| |
| if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) |
| return; |
| |
| pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| if (!pmboxq) |
| return; |
| memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| |
| pmb = &pmboxq->u.mb; |
| pmb->mbxCommand = MBX_READ_STATUS; |
| pmb->mbxOwner = OWN_HOST; |
| pmb->un.varWords[0] = 0x1; /* reset request */ |
| pmboxq->context1 = NULL; |
| pmboxq->vport = vport; |
| |
| if ((vport->fc_flag & FC_OFFLINE_MODE) || |
| (!(psli->sli_flag & LPFC_SLI_ACTIVE))) |
| rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| else |
| rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); |
| |
| if (rc != MBX_SUCCESS) { |
| if (rc != MBX_TIMEOUT) |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| memset(pmboxq, 0, sizeof(LPFC_MBOXQ_t)); |
| pmb->mbxCommand = MBX_READ_LNK_STAT; |
| pmb->mbxOwner = OWN_HOST; |
| pmboxq->context1 = NULL; |
| pmboxq->vport = vport; |
| |
| if ((vport->fc_flag & FC_OFFLINE_MODE) || |
| (!(psli->sli_flag & LPFC_SLI_ACTIVE))) |
| rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_POLL); |
| else |
| rc = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); |
| |
| if (rc != MBX_SUCCESS) { |
| if (rc != MBX_TIMEOUT) |
| mempool_free( pmboxq, phba->mbox_mem_pool); |
| return; |
| } |
| |
| lso->link_failure_count = pmb->un.varRdLnk.linkFailureCnt; |
| lso->loss_of_sync_count = pmb->un.varRdLnk.lossSyncCnt; |
| lso->loss_of_signal_count = pmb->un.varRdLnk.lossSignalCnt; |
| lso->prim_seq_protocol_err_count = pmb->un.varRdLnk.primSeqErrCnt; |
| lso->invalid_tx_word_count = pmb->un.varRdLnk.invalidXmitWord; |
| lso->invalid_crc_count = pmb->un.varRdLnk.crcCnt; |
| lso->error_frames = pmb->un.varRdLnk.crcCnt; |
| if (phba->hba_flag & HBA_FCOE_SUPPORT) |
| lso->link_events = (phba->link_events >> 1); |
| else |
| lso->link_events = (phba->fc_eventTag >> 1); |
| |
| psli->stats_start = get_seconds(); |
| |
| mempool_free(pmboxq, phba->mbox_mem_pool); |
| |
| return; |
| } |
| |
| /* |
| * The LPFC driver treats linkdown handling as target loss events so there |
| * are no sysfs handlers for link_down_tmo. |
| */ |
| |
| /** |
| * lpfc_get_node_by_target - Return the nodelist for a target |
| * @starget: kernel scsi target pointer. |
| * |
| * Returns: |
| * address of the node list if found |
| * NULL target not found |
| **/ |
| static struct lpfc_nodelist * |
| lpfc_get_node_by_target(struct scsi_target *starget) |
| { |
| struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); |
| struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; |
| struct lpfc_nodelist *ndlp; |
| |
| spin_lock_irq(shost->host_lock); |
| /* Search for this, mapped, target ID */ |
| list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) { |
| if (NLP_CHK_NODE_ACT(ndlp) && |
| ndlp->nlp_state == NLP_STE_MAPPED_NODE && |
| starget->id == ndlp->nlp_sid) { |
| spin_unlock_irq(shost->host_lock); |
| return ndlp; |
| } |
| } |
| spin_unlock_irq(shost->host_lock); |
| return NULL; |
| } |
| |
| /** |
| * lpfc_get_starget_port_id - Set the target port id to the ndlp DID or -1 |
| * @starget: kernel scsi target pointer. |
| **/ |
| static void |
| lpfc_get_starget_port_id(struct scsi_target *starget) |
| { |
| struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); |
| |
| fc_starget_port_id(starget) = ndlp ? ndlp->nlp_DID : -1; |
| } |
| |
| /** |
| * lpfc_get_starget_node_name - Set the target node name |
| * @starget: kernel scsi target pointer. |
| * |
| * Description: Set the target node name to the ndlp node name wwn or zero. |
| **/ |
| static void |
| lpfc_get_starget_node_name(struct scsi_target *starget) |
| { |
| struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); |
| |
| fc_starget_node_name(starget) = |
| ndlp ? wwn_to_u64(ndlp->nlp_nodename.u.wwn) : 0; |
| } |
| |
| /** |
| * lpfc_get_starget_port_name - Set the target port name |
| * @starget: kernel scsi target pointer. |
| * |
| * Description: set the target port name to the ndlp port name wwn or zero. |
| **/ |
| static void |
| lpfc_get_starget_port_name(struct scsi_target *starget) |
| { |
| struct lpfc_nodelist *ndlp = lpfc_get_node_by_target(starget); |
| |
| fc_starget_port_name(starget) = |
| ndlp ? wwn_to_u64(ndlp->nlp_portname.u.wwn) : 0; |
| } |
| |
| /** |
| * lpfc_set_rport_loss_tmo - Set the rport dev loss tmo |
| * @rport: fc rport address. |
| * @timeout: new value for dev loss tmo. |
| * |
| * Description: |
| * If timeout is non zero set the dev_loss_tmo to timeout, else set |
| * dev_loss_tmo to one. |
| **/ |
| static void |
| lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) |
| { |
| if (timeout) |
| rport->dev_loss_tmo = timeout; |
| else |
| rport->dev_loss_tmo = 1; |
| } |
| |
| /** |
| * lpfc_rport_show_function - Return rport target information |
| * |
| * Description: |
| * Macro that uses field to generate a function with the name lpfc_show_rport_ |
| * |
| * lpfc_show_rport_##field: returns the bytes formatted in buf |
| * @cdev: class converted to an fc_rport. |
| * @buf: on return contains the target_field or zero. |
| * |
| * Returns: size of formatted string. |
| **/ |
| #define lpfc_rport_show_function(field, format_string, sz, cast) \ |
| static ssize_t \ |
| lpfc_show_rport_##field (struct device *dev, \ |
| struct device_attribute *attr, \ |
| char *buf) \ |
| { \ |
| struct fc_rport *rport = transport_class_to_rport(dev); \ |
| struct lpfc_rport_data *rdata = rport->hostdata; \ |
| return snprintf(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 propogate the change into the fabric if the vport is active. |
| **/ |
| static void |
| lpfc_set_vport_symbolic_name(struct fc_vport *fc_vport) |
| { |
| struct lpfc_vport *vport = *(struct lpfc_vport **)fc_vport->dd_data; |
| |
| if (vport->port_state == LPFC_VPORT_READY) |
| lpfc_ns_cmd(vport, SLI_CTNS_RSPN_ID, 0, 0); |
| } |
| |
| /** |
| * lpfc_hba_log_verbose_init - Set hba's log verbose level |
| * @phba: Pointer to lpfc_hba struct. |
| * |
| * This function is called by the lpfc_get_cfgparam() routine to set the |
| * module lpfc_log_verbose into the @phba cfg_log_verbose for use with |
| * log messsage 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, |
| .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, |
| .show_host_symbolic_name = 1, |
| |
| /* dynamic attributes the driver supports */ |
| .get_host_port_id = lpfc_get_host_port_id, |
| .show_host_port_id = 1, |
| |
| .get_host_port_type = lpfc_get_host_port_type, |
| .show_host_port_type = 1, |
| |
| .get_host_port_state = lpfc_get_host_port_state, |
| .show_host_port_state = 1, |
| |
| /* active_fc4s is shown but doesn't change (thus no get function) */ |
| .show_host_active_fc4s = 1, |
| |
| .get_host_speed = lpfc_get_host_speed, |
| .show_host_speed = 1, |
| |
| .get_host_fabric_name = lpfc_get_host_fabric_name, |
| .show_host_fabric_name = 1, |
| |
| /* |
| * The LPFC driver treats linkdown handling as target loss events |
| * so there are no sysfs handlers for link_down_tmo. |
| */ |
| |
| .get_fc_host_stats = lpfc_get_stats, |
| .reset_fc_host_stats = lpfc_reset_stats, |
| |
| .dd_fcrport_size = sizeof(struct lpfc_rport_data), |
| .show_rport_maxframe_size = 1, |
| .show_rport_supported_classes = 1, |
| |
| .set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo, |
| .show_rport_dev_loss_tmo = 1, |
| |
| .get_starget_port_id = lpfc_get_starget_port_id, |
| .show_starget_port_id = 1, |
| |
| .get_starget_node_name = lpfc_get_starget_node_name, |
| .show_starget_node_name = 1, |
| |
| .get_starget_port_name = lpfc_get_starget_port_name, |
| .show_starget_port_name = 1, |
| |
| .dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk, |
| .terminate_rport_io = lpfc_terminate_rport_io, |
| |
| .vport_disable = lpfc_vport_disable, |
| |
| .set_vport_symbolic_name = lpfc_set_vport_symbolic_name, |
| }; |
| |
| /** |
| * lpfc_get_cfgparam - Used during probe_one to init the adapter structure |
| * @phba: lpfc_hba pointer. |
| **/ |
| void |
| lpfc_get_cfgparam(struct lpfc_hba *phba) |
| { |
| lpfc_cr_delay_init(phba, lpfc_cr_delay); |
| lpfc_cr_count_init(phba, lpfc_cr_count); |
| lpfc_multi_ring_support_init(phba, lpfc_multi_ring_support); |
| lpfc_multi_ring_rctl_init(phba, lpfc_multi_ring_rctl); |
| lpfc_multi_ring_type_init(phba, lpfc_multi_ring_type); |
| lpfc_ack0_init(phba, lpfc_ack0); |
| lpfc_topology_init(phba, lpfc_topology); |
| lpfc_link_speed_init(phba, lpfc_link_speed); |
| lpfc_poll_tmo_init(phba, lpfc_poll_tmo); |
| lpfc_enable_npiv_init(phba, lpfc_enable_npiv); |
| lpfc_use_msi_init(phba, lpfc_use_msi); |
| lpfc_fcp_imax_init(phba, lpfc_fcp_imax); |
| lpfc_fcp_wq_count_init(phba, lpfc_fcp_wq_count); |
| lpfc_fcp_eq_count_init(phba, lpfc_fcp_eq_count); |
| lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset); |
| lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat); |
| lpfc_enable_bg_init(phba, lpfc_enable_bg); |
| if (phba->sli_rev == LPFC_SLI_REV4) |
| phba->cfg_poll = 0; |
| else |
| phba->cfg_poll = lpfc_poll; |
| phba->cfg_soft_wwnn = 0L; |
| phba->cfg_soft_wwpn = 0L; |
| lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt); |
| lpfc_prot_sg_seg_cnt_init(phba, lpfc_prot_sg_seg_cnt); |
| lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); |
| lpfc_hba_log_verbose_init(phba, lpfc_log_verbose); |
| lpfc_aer_support_init(phba, lpfc_aer_support); |
| lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up); |
| lpfc_iocb_cnt_init(phba, lpfc_iocb_cnt); |
| return; |
| } |
| |
| /** |
| * 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_max_scsicmpl_time_init(vport, lpfc_max_scsicmpl_time); |
| lpfc_fdmi_on_init(vport, lpfc_fdmi_on); |
| 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; |
| } |