/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2008 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 #include #include #include #include #include #include #include #include #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"); } 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: 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_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); } 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 succcess * * 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) status = lpfc_do_offline(phba, LPFC_EVT_WARM_START); else if (strncmp(buf, "error", sizeof("error") - 1) == 0) 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_sli *psli = &phba->sli; struct lpfc_mbx_read_config *rd_config; LPFC_MBOXQ_t *pmboxq; MAILBOX_t *pmb; int rc = 0; /* * prevent udev from issuing mailbox commands until the port is * configured. */ if (phba->link_state < LPFC_LINK_DOWN || !phba->mbox_mem_pool || (phba->sli.sli_flag & LPFC_SLI2_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) || (!(psli->sli_flag & LPFC_SLI2_ACTIVE))) 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; if (mvpi) *mvpi = bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config); if (avpi) *avpi = bf_get(lpfc_mbx_rd_conf_vpi_count, rd_config) - 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; 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_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;\ int 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;\ int val = 0;\ val = phba->cfg_##attr;\ return snprintf(buf, PAGE_SIZE, "%#x\n",\ phba->cfg_##attr);\ } /** * lpfc_param_init - Intializes 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, int 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, int 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;\ int 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;\ int 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;\ int 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, int 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, int 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;\ int 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 0);\ MODULE_PARM_DESC(lpfc_##name, desc);\ lpfc_param_init(name, defval, minval, maxval) #define LPFC_ATTR_R(name, defval, minval, maxval, desc) \ static int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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 int lpfc_##name = defval;\ module_param(lpfc_##name, int, 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, lpfc_link_state_show, NULL); 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(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 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++) { if ((*buf >= 'a') && (*buf <= 'f')) j = ((j << 4) | ((*buf++ -'a') + 10)); else if ((*buf >= 'A') && (*buf <= 'F')) j = ((j << 4) | ((*buf++ -'A') + 10)); else if ((*buf >= '0') && (*buf <= '9')) j = ((j << 4) | (*buf++ -'0')); else return -EINVAL; if (i % 2) { 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++) { if ((*buf >= 'a') && (*buf <= 'f')) j = ((j << 4) | ((*buf++ -'a') + 10)); else if ((*buf >= 'A') && (*buf <= 'F')) j = ((j << 4) | ((*buf++ -'A') + 10)); else if ((*buf >= '0') && (*buf <= '9')) j = ((j << 4) | (*buf++ -'0')); else return -EINVAL; if (i % 2) { 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 = 0; 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, 0, 0, 1); static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO, lpfc_enable_npiv_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; int val = 0; val = vport->cfg_devloss_tmo; 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; 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; 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: # # LOG_ELS 0x1 ELS events # LOG_DISCOVERY 0x2 Link discovery events # LOG_MBOX 0x4 Mailbox events # LOG_INIT 0x8 Initialization events # LOG_LINK_EVENT 0x10 Link events # LOG_FCP 0x40 FCP traffic history # LOG_NODE 0x80 Node table events # LOG_BG 0x200 BlockBuard events # LOG_MISC 0x400 Miscellaneous events # LOG_SLI 0x800 SLI events # LOG_FCP_ERROR 0x1000 Only log FCP errors # LOG_LIBDFC 0x2000 LIBDFC events # LOG_ALL_MSG 0xffff LOG all messages */ LPFC_VPORT_ATTR_HEX_RW(log_verbose, 0x0, 0x0, 0xffff, "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"); /* # 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_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 * = 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_vpi && 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_vpi && 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_vpi && 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 * @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 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, .owner = THIS_MODULE, }, .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_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 = LPFC_MAX_TGT_QDEPTH; } 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_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_LLC_SNAP, 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 (default) # 1 = MSI enabled # 2 = MSI-X enabled # Value range is [0,2]. Default value is 0. */ LPFC_ATTR_R(use_msi, 0, 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_DIX_TYPE0_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_temp_sensor, &dev_attr_lpfc_log_verbose, &dev_attr_lpfc_lun_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, 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_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, NULL, }; /** * sysfs_ctlreg_write - Write method for writing to ctlreg * @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 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 ((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 * @kobj: kernel kobject that contains the kernel class device. * @bin_attr: kernel attributes passed to us. * @buf: if succesful 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 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 (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 * @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 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 * @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 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_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_SLI2_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; 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_SLI2_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) || (!(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 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) || (!(psli->sli_flag & LPFC_SLI2_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 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->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_SLI2_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_SLI2_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; 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); } 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, }; 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); 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); /* * Since the sg_tablesize is module parameter, the sg_dma_buf_size * used to create the sg_dma_buf_pool must be dynamically calculated. * 2 segments are added since the IOCB needs a command and response bde. */ phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64)); if (phba->cfg_enable_bg) { phba->cfg_sg_seg_cnt = LPFC_MAX_SG_SEG_CNT; phba->cfg_sg_dma_buf_size += phba->cfg_prot_sg_seg_cnt * sizeof(struct ulp_bde64); } /* Also reinitialize the host templates with new values. */ lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth); 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_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; }