diff options
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_attr.c | 1291 |
1 files changed, 1291 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c new file mode 100644 index 00000000000..1276bd77b99 --- /dev/null +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -0,0 +1,1291 @@ +/******************************************************************* + * This file is part of the Emulex Linux Device Driver for * + * Enterprise Fibre Channel Host Bus Adapters. * + * Refer to the README file included with this package for * + * driver version and adapter support. * + * Copyright (C) 2004 Emulex Corporation. * + * www.emulex.com * + * * + * This program is free software; you can redistribute it and/or * + * modify it under the terms of the GNU General Public License * + * as published by the Free Software Foundation; either version 2 * + * of the License, or (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details, a copy of which * + * can be found in the file COPYING included with this package. * + *******************************************************************/ + +/* + * $Id: lpfc_attr.c 1.24 2005/04/13 11:58:55EDT sf_support Exp $ + */ + +#include <linux/ctype.h> +#include <linux/pci.h> +#include <linux/interrupt.h> + +#include <scsi/scsi_device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_tcq.h> +#include <scsi/scsi_transport_fc.h> + +#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 ssize_t +lpfc_issue_lip (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; + LPFC_MBOXQ_t *pmboxq; + int mbxstatus = MBXERR_ERROR; + + if ((sscanf(buf, "%d", &val) != 1) || + (val != 1)) + return -EINVAL; + + 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 strlen(buf); +} + +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(issue_lip, S_IWUSR, NULL, lpfc_issue_lip); +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_issue_lip, + &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 nodename; + + spin_lock_irq(shost->host_lock); + + if ((phba->fc_flag & FC_FABRIC) || + ((phba->fc_topology == TOPOLOGY_LOOP) && + (phba->fc_flag & FC_PUBLIC_LOOP))) + memcpy(&nodename, &phba->fc_fabparam.nodeName, sizeof(u64)); + else + /* fabric is local port if there is no F/FL_Port */ + memcpy(&nodename, &phba->fc_nodename, sizeof(u64)); + + spin_unlock_irq(shost->host_lock); + + fc_host_fabric_name(shost) = be64_to_cpu(nodename); +} + + +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 = + (struct fc_host_statistics *)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 (pmboxq) { + if (rc == MBX_TIMEOUT) + pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl; + else + mempool_free( pmboxq, phba->mbox_mem_pool); + } + return NULL; + } + + 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((void *)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 (pmboxq) { + 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]; + uint64_t 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) { + memcpy(&node_name, &ndlp->nlp_nodename, + sizeof(struct lpfc_name)); + break; + } + } + spin_unlock_irq(shost->host_lock); + + fc_starget_node_name(starget) = be64_to_cpu(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]; + uint64_t 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) { + memcpy(&port_name, &ndlp->nlp_portname, + sizeof(struct lpfc_name)); + break; + } + } + spin_unlock_irq(shost->host_lock); + + fc_starget_port_name(starget) = be64_to_cpu(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, +}; + +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; +} |