/******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * * Copyright (C) 2004-2005 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 "lpfc_hw.h" #include "lpfc_sli.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" static void lpfc_jedec_to_ascii(int incr, char hdw[]) { int i, j; for (i = 0; i < 8; i++) { j = (incr & 0xf); if (j <= 9) hdw[7 - i] = 0x30 + j; else hdw[7 - i] = 0x61 + j - 10; incr = (incr >> 4); } hdw[8] = 0; return; } static ssize_t lpfc_drvr_version_show(struct class_device *cdev, char *buf) { return snprintf(buf, PAGE_SIZE, LPFC_MODULE_DESC "\n"); } static ssize_t management_version_show(struct class_device *cdev, char *buf) { return snprintf(buf, PAGE_SIZE, DFC_API_VERSION "\n"); } static ssize_t lpfc_info_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); return snprintf(buf, PAGE_SIZE, "%s\n",lpfc_info(host)); } static ssize_t lpfc_serialnum_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%s\n",phba->SerialNumber); } static ssize_t lpfc_modeldesc_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelDesc); } static ssize_t lpfc_modelname_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%s\n",phba->ModelName); } static ssize_t lpfc_programtype_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%s\n",phba->ProgramType); } static ssize_t lpfc_portnum_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%s\n",phba->Port); } static ssize_t lpfc_fwrev_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; char fwrev[32]; lpfc_decode_firmware_rev(phba, fwrev, 1); return snprintf(buf, PAGE_SIZE, "%s\n",fwrev); } static ssize_t lpfc_hdw_show(struct class_device *cdev, char *buf) { char hdw[9]; struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; lpfc_vpd_t *vp = &phba->vpd; lpfc_jedec_to_ascii(vp->rev.biuRev, hdw); return snprintf(buf, PAGE_SIZE, "%s\n", hdw); } static ssize_t lpfc_option_rom_version_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%s\n", phba->OptionROMVersion); } static ssize_t lpfc_state_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; int len = 0; switch (phba->hba_state) { case LPFC_INIT_START: case LPFC_INIT_MBX_CMDS: case LPFC_LINK_DOWN: len += snprintf(buf + len, PAGE_SIZE-len, "Link Down\n"); break; case LPFC_LINK_UP: case LPFC_LOCAL_CFG_LINK: len += snprintf(buf + len, PAGE_SIZE-len, "Link Up\n"); break; 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: case LPFC_CLEAR_LA: len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - Discovery\n"); break; case LPFC_HBA_READY: len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - Ready:\n"); if (phba->fc_topology == TOPOLOGY_LOOP) { if (phba->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 (phba->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; } static ssize_t lpfc_num_discovered_ports_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%d\n", phba->fc_map_cnt + phba->fc_unmap_cnt); } static int lpfc_issue_lip(struct Scsi_Host *host) { struct lpfc_hba *phba = (struct lpfc_hba *) host->hostdata[0]; LPFC_MBOXQ_t *pmboxq; int mbxstatus = MBXERR_ERROR; if ((phba->fc_flag & FC_OFFLINE_MODE) || (phba->hba_state != LPFC_HBA_READY)) return -EPERM; pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL); if (!pmboxq) return -ENOMEM; memset((void *)pmboxq, 0, sizeof (LPFC_MBOXQ_t)); lpfc_init_link(phba, pmboxq, phba->cfg_topology, phba->cfg_link_speed); mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, phba->fc_ratov * 2); if (mbxstatus == MBX_TIMEOUT) pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; else mempool_free(pmboxq, phba->mbox_mem_pool); if (mbxstatus == MBXERR_ERROR) return -EIO; return 0; } static ssize_t lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; return snprintf(buf, PAGE_SIZE, "%d\n", phba->nport_event_cnt); } static ssize_t lpfc_board_online_show(struct class_device *cdev, char *buf) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; if (!phba) return 0; if (phba->fc_flag & FC_OFFLINE_MODE) return snprintf(buf, PAGE_SIZE, "0\n"); else return snprintf(buf, PAGE_SIZE, "1\n"); } static ssize_t lpfc_board_online_store(struct class_device *cdev, const char *buf, size_t count) { struct Scsi_Host *host = class_to_shost(cdev); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; struct completion online_compl; int val=0, status=0; if (sscanf(buf, "%d", &val) != 1) return 0; init_completion(&online_compl); if (val) lpfc_workq_post_event(phba, &status, &online_compl, LPFC_EVT_ONLINE); else lpfc_workq_post_event(phba, &status, &online_compl, LPFC_EVT_OFFLINE); wait_for_completion(&online_compl); if (!status) return strlen(buf); else return 0; } #define lpfc_param_show(attr) \ static ssize_t \ lpfc_##attr##_show(struct class_device *cdev, char *buf) \ { \ struct Scsi_Host *host = class_to_shost(cdev);\ struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\ int val = 0;\ if (phba){\ val = phba->cfg_##attr;\ return snprintf(buf, PAGE_SIZE, "%d\n",\ phba->cfg_##attr);\ }\ return 0;\ } #define lpfc_param_store(attr, minval, maxval) \ static ssize_t \ lpfc_##attr##_store(struct class_device *cdev, const char *buf, size_t count) \ { \ struct Scsi_Host *host = class_to_shost(cdev);\ struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0];\ int val = 0;\ if (!isdigit(buf[0]))\ return -EINVAL;\ if (sscanf(buf, "0x%x", &val) != 1)\ if (sscanf(buf, "%d", &val) != 1)\ return -EINVAL;\ if (phba){\ if (val >= minval && val <= maxval) {\ phba->cfg_##attr = val;\ return strlen(buf);\ }\ }\ return 0;\ } #define LPFC_ATTR_R_NOINIT(name, desc) \ extern int lpfc_##name;\ module_param(lpfc_##name, int, 0);\ MODULE_PARM_DESC(lpfc_##name, desc);\ lpfc_param_show(name)\ static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL) #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)\ static CLASS_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_store(name, minval, maxval)\ static CLASS_DEVICE_ATTR(lpfc_##name, S_IRUGO | S_IWUSR,\ lpfc_##name##_show, lpfc_##name##_store) static CLASS_DEVICE_ATTR(info, S_IRUGO, lpfc_info_show, NULL); static CLASS_DEVICE_ATTR(serialnum, S_IRUGO, lpfc_serialnum_show, NULL); static CLASS_DEVICE_ATTR(modeldesc, S_IRUGO, lpfc_modeldesc_show, NULL); static CLASS_DEVICE_ATTR(modelname, S_IRUGO, lpfc_modelname_show, NULL); static CLASS_DEVICE_ATTR(programtype, S_IRUGO, lpfc_programtype_show, NULL); static CLASS_DEVICE_ATTR(portnum, S_IRUGO, lpfc_portnum_show, NULL); static CLASS_DEVICE_ATTR(fwrev, S_IRUGO, lpfc_fwrev_show, NULL); static CLASS_DEVICE_ATTR(hdw, S_IRUGO, lpfc_hdw_show, NULL); static CLASS_DEVICE_ATTR(state, S_IRUGO, lpfc_state_show, NULL); static CLASS_DEVICE_ATTR(option_rom_version, S_IRUGO, lpfc_option_rom_version_show, NULL); static CLASS_DEVICE_ATTR(num_discovered_ports, S_IRUGO, lpfc_num_discovered_ports_show, NULL); static CLASS_DEVICE_ATTR(nport_evt_cnt, S_IRUGO, lpfc_nport_evt_cnt_show, NULL); static CLASS_DEVICE_ATTR(lpfc_drvr_version, S_IRUGO, lpfc_drvr_version_show, NULL); static CLASS_DEVICE_ATTR(management_version, S_IRUGO, management_version_show, NULL); static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR, lpfc_board_online_show, lpfc_board_online_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_IP 0x20 IP traffic history # LOG_FCP 0x40 FCP traffic history # LOG_NODE 0x80 Node table events # LOG_MISC 0x400 Miscellaneous events # LOG_SLI 0x800 SLI events # LOG_CHK_COND 0x1000 FCP Check condition flag # LOG_LIBDFC 0x2000 LIBDFC events # LOG_ALL_MSG 0xffff LOG all messages */ LPFC_ATTR_RW(log_verbose, 0x0, 0x0, 0xffff, "Verbose logging bit-mask"); /* # 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_ATTR_R(lun_queue_depth, 30, 1, 128, "Max number of FCP commands we can queue to a specific LUN"); /* # 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_ATTR_R(scan_down, 1, 0, 1, "Start scanning for devices from highest ALPA to lowest"); /* # 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 20. # NOTE: this MUST be less then the SCSI Layer command timeout - 1. */ LPFC_ATTR_RW(nodev_tmo, 30, 0, 255, "Seconds driver will hold I/O waiting for a device to come back"); /* # lpfc_topology: link topology for init link # 0x0 = attempt loop mode then point-to-point # 0x02 = attempt point-to-point mode only # 0x04 = attempt loop mode only # 0x06 = attempt point-to-point mode then loop # Set point-to-point mode if you want to run as an N_Port. # Set loop mode if you want to run as an NL_Port. Value range is [0,0x6]. # Default value is 0. */ LPFC_ATTR_R(topology, 0, 0, 6, "Select Fibre Channel topology"); /* # 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 # Value range is [0,4]. Default value is 0. */ LPFC_ATTR_R(link_speed, 0, 0, 4, "Select link speed"); /* # lpfc_fcp_class: Determines FC class to use for the FCP protocol. # Value range is [2,3]. Default value is 3. */ LPFC_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_ATTR_RW(use_adisc, 0, 0, 1, "Use ADISC on rediscovery to authenticate FCP devices"); /* # 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 [0,255]. 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. */ static int lpfc_cr_delay = 0; module_param(lpfc_cr_delay, int , 0); MODULE_PARM_DESC(lpfc_cr_delay, "A count of milliseconds after which an " "interrupt response is generated"); static int lpfc_cr_count = 1; module_param(lpfc_cr_count, int, 0); MODULE_PARM_DESC(lpfc_cr_count, "A count of I/O completions after which an " "interrupt response is generated"); /* # 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_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. */ static int lpfc_discovery_threads = 32; module_param(lpfc_discovery_threads, int, 0); MODULE_PARM_DESC(lpfc_discovery_threads, "Maximum number of ELS commands " "during discovery"); /* # lpfc_max_luns: maximum number of LUNs per target driver will support # Value range is [1,32768]. Default value is 256. # NOTE: The SCSI layer will scan each target for this many luns */ LPFC_ATTR_R(max_luns, 256, 1, 32768, "Maximum number of LUNs per target driver will support"); struct class_device_attribute *lpfc_host_attrs[] = { &class_device_attr_info, &class_device_attr_serialnum, &class_device_attr_modeldesc, &class_device_attr_modelname, &class_device_attr_programtype, &class_device_attr_portnum, &class_device_attr_fwrev, &class_device_attr_hdw, &class_device_attr_option_rom_version, &class_device_attr_state, &class_device_attr_num_discovered_ports, &class_device_attr_lpfc_drvr_version, &class_device_attr_lpfc_log_verbose, &class_device_attr_lpfc_lun_queue_depth, &class_device_attr_lpfc_nodev_tmo, &class_device_attr_lpfc_fcp_class, &class_device_attr_lpfc_use_adisc, &class_device_attr_lpfc_ack0, &class_device_attr_lpfc_topology, &class_device_attr_lpfc_scan_down, &class_device_attr_lpfc_link_speed, &class_device_attr_lpfc_fdmi_on, &class_device_attr_lpfc_max_luns, &class_device_attr_nport_evt_cnt, &class_device_attr_management_version, &class_device_attr_board_online, NULL, }; static ssize_t sysfs_ctlreg_write(struct kobject *kobj, char *buf, loff_t off, size_t count) { size_t buf_off; struct Scsi_Host *host = class_to_shost(container_of(kobj, struct class_device, kobj)); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; 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; spin_lock_irq(phba->host->host_lock); if (!(phba->fc_flag & FC_OFFLINE_MODE)) { spin_unlock_irq(phba->host->host_lock); return -EPERM; } 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->host->host_lock); return count; } static ssize_t sysfs_ctlreg_read(struct kobject *kobj, char *buf, loff_t off, size_t count) { size_t buf_off; uint32_t * tmp_ptr; struct Scsi_Host *host = class_to_shost(container_of(kobj, struct class_device, kobj)); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; 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->host->host_lock); 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->host->host_lock); return count; } static struct bin_attribute sysfs_ctlreg_attr = { .attr = { .name = "ctlreg", .mode = S_IRUSR | S_IWUSR, .owner = THIS_MODULE, }, .size = 256, .read = sysfs_ctlreg_read, .write = sysfs_ctlreg_write, }; 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; } } static ssize_t sysfs_mbox_write(struct kobject *kobj, char *buf, loff_t off, size_t count) { struct Scsi_Host * host = class_to_shost(container_of(kobj, struct class_device, kobj)); struct lpfc_hba * phba = (struct lpfc_hba*)host->hostdata[0]; 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; } spin_lock_irq(host->host_lock); 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(host->host_lock); return -EINVAL; } } memcpy((uint8_t *) & phba->sysfs_mbox.mbox->mb + off, buf, count); phba->sysfs_mbox.offset = off + count; spin_unlock_irq(host->host_lock); return count; } static ssize_t sysfs_mbox_read(struct kobject *kobj, char *buf, loff_t off, size_t count) { struct Scsi_Host *host = class_to_shost(container_of(kobj, struct class_device, kobj)); struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata[0]; int rc; if (off > sizeof(MAILBOX_t)) return -ERANGE; if ((count + off) > sizeof(MAILBOX_t)) count = sizeof(MAILBOX_t) - off; if (off % 4 || count % 4 || (unsigned long)buf % 4) return -EINVAL; if (off && count == 0) return 0; spin_lock_irq(phba->host->host_lock); if (off == 0 && phba->sysfs_mbox.state == SMBOX_WRITING && phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) { switch (phba->sysfs_mbox.mbox->mb.mbxCommand) { /* Offline only */ case MBX_WRITE_NV: 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_FLASH_WR_ULA: case MBX_SET_MASK: case MBX_SET_SLIM: case MBX_SET_DEBUG: if (!(phba->fc_flag & FC_OFFLINE_MODE)) { printk(KERN_WARNING "mbox_read:Command 0x%x " "is illegal in on-line state\n", phba->sysfs_mbox.mbox->mb.mbxCommand); sysfs_mbox_idle(phba); spin_unlock_irq(phba->host->host_lock); return -EPERM; } 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_LOAD_AREA: case MBX_LOAD_EXP_ROM: 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", phba->sysfs_mbox.mbox->mb.mbxCommand); sysfs_mbox_idle(phba); spin_unlock_irq(phba->host->host_lock); return -EPERM; default: printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n", phba->sysfs_mbox.mbox->mb.mbxCommand); sysfs_mbox_idle(phba); spin_unlock_irq(phba->host->host_lock); return -EPERM; } if ((phba->fc_flag & FC_OFFLINE_MODE) || (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE))){ spin_unlock_irq(phba->host->host_lock); rc = lpfc_sli_issue_mbox (phba, phba->sysfs_mbox.mbox, MBX_POLL); spin_lock_irq(phba->host->host_lock); } else { spin_unlock_irq(phba->host->host_lock); rc = lpfc_sli_issue_mbox_wait (phba, phba->sysfs_mbox.mbox, phba->fc_ratov * 2); spin_lock_irq(phba->host->host_lock); } if (rc != MBX_SUCCESS) { sysfs_mbox_idle(phba); spin_unlock_irq(host->host_lock); return -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(host->host_lock); return -EINVAL; } memcpy(buf, (uint8_t *) & phba->sysfs_mbox.mbox->mb + off, count); phba->sysfs_mbox.offset = off + count; if (phba->sysfs_mbox.offset == sizeof(MAILBOX_t)) sysfs_mbox_idle(phba); spin_unlock_irq(phba->host->host_lock); return count; } static struct bin_attribute sysfs_mbox_attr = { .attr = { .name = "mbox", .mode = S_IRUSR | S_IWUSR, .owner = THIS_MODULE, }, .size = sizeof(MAILBOX_t), .read = sysfs_mbox_read, .write = sysfs_mbox_write, }; int lpfc_alloc_sysfs_attr(struct lpfc_hba *phba) { struct Scsi_Host *host = phba->host; int error; error = sysfs_create_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr); if (error) goto out; error = sysfs_create_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr); if (error) goto out_remove_ctlreg_attr; return 0; out_remove_ctlreg_attr: sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr); out: return error; } void lpfc_free_sysfs_attr(struct lpfc_hba *phba) { struct Scsi_Host *host = phba->host; sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_mbox_attr); sysfs_remove_bin_file(&host->shost_classdev.kobj, &sysfs_ctlreg_attr); } /* * Dynamic FC Host Attributes Support */ static void lpfc_get_host_port_id(struct Scsi_Host *shost) { struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0]; /* note: fc_myDID already in cpu endianness */ fc_host_port_id(shost) = phba->fc_myDID; } static void lpfc_get_host_port_type(struct Scsi_Host *shost) { struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0]; spin_lock_irq(shost->host_lock); if (phba->hba_state == LPFC_HBA_READY) { if (phba->fc_topology == TOPOLOGY_LOOP) { if (phba->fc_flag & FC_PUBLIC_LOOP) fc_host_port_type(shost) = FC_PORTTYPE_NLPORT; else fc_host_port_type(shost) = FC_PORTTYPE_LPORT; } else { if (phba->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); } static void lpfc_get_host_port_state(struct Scsi_Host *shost) { struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0]; spin_lock_irq(shost->host_lock); if (phba->fc_flag & FC_OFFLINE_MODE) fc_host_port_state(shost) = FC_PORTSTATE_OFFLINE; else { switch (phba->hba_state) { case LPFC_INIT_START: case LPFC_INIT_MBX_CMDS: case LPFC_LINK_DOWN: fc_host_port_state(shost) = FC_PORTSTATE_LINKDOWN; break; case LPFC_LINK_UP: case LPFC_LOCAL_CFG_LINK: 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: 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); } static void lpfc_get_host_speed(struct Scsi_Host *shost) { struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0]; spin_lock_irq(shost->host_lock); if (phba->hba_state == LPFC_HBA_READY) { 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; default: fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN; break; } } spin_unlock_irq(shost->host_lock); } static void lpfc_get_host_fabric_name (struct Scsi_Host *shost) { struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata[0]; u64 node_name; spin_lock_irq(shost->host_lock); if ((phba->fc_flag & FC_FABRIC) || ((phba->fc_topology == TOPOLOGY_LOOP) && (phba->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 = wwn_to_u64(phba->fc_nodename.u.wwn); spin_unlock_irq(shost->host_lock); fc_host_fabric_name(shost) = node_name; } static struct fc_host_statistics * lpfc_get_stats(struct Scsi_Host *shost) { struct lpfc_hba *phba = (struct lpfc_hba *)shost->hostdata[0]; struct lpfc_sli *psli = &phba->sli; struct fc_host_statistics *hs = &phba->link_stats; LPFC_MBOXQ_t *pmboxq; MAILBOX_t *pmb; int rc = 0; pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); if (!pmboxq) return NULL; memset(pmboxq, 0, sizeof (LPFC_MBOXQ_t)); pmb = &pmboxq->mb; pmb->mbxCommand = MBX_READ_STATUS; pmb->mbxOwner = OWN_HOST; pmboxq->context1 = NULL; if ((phba->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) pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; else 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; if ((phba->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) pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; else 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; if (phba->fc_topology == TOPOLOGY_LOOP) { hs->lip_count = (phba->fc_eventTag >> 1); hs->nos_count = -1; } else { hs->lip_count = -1; hs->nos_count = (phba->fc_eventTag >> 1); } hs->dumped_frames = -1; /* FIX ME */ /*hs->SecondsSinceLastReset = (jiffies - lpfc_loadtime) / HZ;*/ return hs; } /* * The LPFC driver treats linkdown handling as target loss events so there * are no sysfs handlers for link_down_tmo. */ static void lpfc_get_starget_port_id(struct scsi_target *starget) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0]; uint32_t did = -1; struct lpfc_nodelist *ndlp = NULL; spin_lock_irq(shost->host_lock); /* Search the mapped list for this target ID */ list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) { if (starget->id == ndlp->nlp_sid) { did = ndlp->nlp_DID; break; } } spin_unlock_irq(shost->host_lock); fc_starget_port_id(starget) = did; } static void lpfc_get_starget_node_name(struct scsi_target *starget) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0]; u64 node_name = 0; struct lpfc_nodelist *ndlp = NULL; spin_lock_irq(shost->host_lock); /* Search the mapped list for this target ID */ list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) { if (starget->id == ndlp->nlp_sid) { node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); break; } } spin_unlock_irq(shost->host_lock); fc_starget_node_name(starget) = node_name; } static void lpfc_get_starget_port_name(struct scsi_target *starget) { struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); struct lpfc_hba *phba = (struct lpfc_hba *) shost->hostdata[0]; u64 port_name = 0; struct lpfc_nodelist *ndlp = NULL; spin_lock_irq(shost->host_lock); /* Search the mapped list for this target ID */ list_for_each_entry(ndlp, &phba->fc_nlpmap_list, nlp_listp) { if (starget->id == ndlp->nlp_sid) { port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); break; } } spin_unlock_irq(shost->host_lock); fc_starget_port_name(starget) = port_name; } static void lpfc_get_rport_loss_tmo(struct fc_rport *rport) { /* * Return the driver's global value for device loss timeout plus * five seconds to allow the driver's nodev timer to run. */ rport->dev_loss_tmo = lpfc_nodev_tmo + 5; } static void lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) { /* * The driver doesn't have a per-target timeout setting. Set * this value globally. lpfc_nodev_tmo should be greater then 0. */ if (timeout) lpfc_nodev_tmo = timeout; else lpfc_nodev_tmo = 1; rport->dev_loss_tmo = lpfc_nodev_tmo + 5; } #define lpfc_rport_show_function(field, format_string, sz, cast) \ static ssize_t \ lpfc_show_rport_##field (struct class_device *cdev, char *buf) \ { \ struct fc_rport *rport = transport_class_to_rport(cdev); \ 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) 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_symbolic_name = 1, .show_host_supported_speeds = 1, .show_host_maxframe_size = 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, /* the LPFC driver doesn't support resetting stats yet */ .dd_fcrport_size = sizeof(struct lpfc_rport_data), .show_rport_maxframe_size = 1, .show_rport_supported_classes = 1, .get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo, .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, }; void lpfc_get_cfgparam(struct lpfc_hba *phba) { phba->cfg_log_verbose = lpfc_log_verbose; phba->cfg_cr_delay = lpfc_cr_delay; phba->cfg_cr_count = lpfc_cr_count; phba->cfg_lun_queue_depth = lpfc_lun_queue_depth; phba->cfg_fcp_class = lpfc_fcp_class; phba->cfg_use_adisc = lpfc_use_adisc; phba->cfg_ack0 = lpfc_ack0; phba->cfg_topology = lpfc_topology; phba->cfg_scan_down = lpfc_scan_down; phba->cfg_nodev_tmo = lpfc_nodev_tmo; phba->cfg_link_speed = lpfc_link_speed; phba->cfg_fdmi_on = lpfc_fdmi_on; phba->cfg_discovery_threads = lpfc_discovery_threads; phba->cfg_max_luns = lpfc_max_luns; /* * The total number of segments is the configuration value plus 2 * since the IOCB need a command and response bde. */ phba->cfg_sg_seg_cnt = LPFC_SG_SEG_CNT + 2; /* * Since the sg_tablesize is module parameter, the sg_dma_buf_size * used to create the sg_dma_buf_pool must be dynamically calculated */ phba->cfg_sg_dma_buf_size = sizeof(struct fcp_cmnd) + sizeof(struct fcp_rsp) + (phba->cfg_sg_seg_cnt * sizeof(struct ulp_bde64)); switch (phba->pcidev->device) { case PCI_DEVICE_ID_LP101: case PCI_DEVICE_ID_BSMB: case PCI_DEVICE_ID_ZSMB: phba->cfg_hba_queue_depth = LPFC_LP101_HBA_Q_DEPTH; break; case PCI_DEVICE_ID_RFLY: case PCI_DEVICE_ID_PFLY: case PCI_DEVICE_ID_BMID: case PCI_DEVICE_ID_ZMID: case PCI_DEVICE_ID_TFLY: phba->cfg_hba_queue_depth = LPFC_LC_HBA_Q_DEPTH; break; default: phba->cfg_hba_queue_depth = LPFC_DFT_HBA_Q_DEPTH; } return; }