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path: root/drivers/scsi/lpfc/lpfc_attr.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_attr.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c217
1 files changed, 191 insertions, 26 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 80a11218b9bb..4bae4a2ed2f1 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2007 Emulex. All rights reserved. *
+ * 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 *
@@ -45,6 +45,10 @@
#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"
+
static void
lpfc_jedec_to_ascii(int incr, char hdw[])
{
@@ -86,6 +90,15 @@ lpfc_serialnum_show(struct class_device *cdev, char *buf)
}
static ssize_t
+lpfc_temp_sensor_show(struct class_device *cdev, char *buf)
+{
+ struct Scsi_Host *shost = class_to_shost(cdev);
+ 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);
+}
+
+static ssize_t
lpfc_modeldesc_show(struct class_device *cdev, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
@@ -178,12 +191,9 @@ lpfc_state_show(struct class_device *cdev, char *buf)
case LPFC_LINK_UP:
case LPFC_CLEAR_LA:
case LPFC_HBA_READY:
- len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - \n");
+ len += snprintf(buf + len, PAGE_SIZE-len, "Link Up - ");
switch (vport->port_state) {
- len += snprintf(buf + len, PAGE_SIZE-len,
- "initializing\n");
- break;
case LPFC_LOCAL_CFG_LINK:
len += snprintf(buf + len, PAGE_SIZE-len,
"Configuring Link\n");
@@ -252,8 +262,7 @@ lpfc_issue_lip(struct Scsi_Host *shost)
int mbxstatus = MBXERR_ERROR;
if ((vport->fc_flag & FC_OFFLINE_MODE) ||
- (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) ||
- (vport->port_state != LPFC_VPORT_READY))
+ (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO))
return -EPERM;
pmboxq = mempool_alloc(phba->mbox_mem_pool,GFP_KERNEL);
@@ -305,12 +314,14 @@ lpfc_do_offline(struct lpfc_hba *phba, uint32_t type)
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];
- /* The linkdown event takes 30 seconds to timeout. */
while (pring->txcmplq_cnt) {
msleep(10);
- if (cnt++ > 3000) {
+ if (cnt++ > 500) { /* 5 secs */
lpfc_printf_log(phba,
KERN_WARNING, LOG_INIT,
"0466 Outstanding IO when "
@@ -336,6 +347,9 @@ 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)
@@ -409,6 +423,8 @@ lpfc_board_mode_store(struct class_device *cdev, const char *buf, size_t count)
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) {
@@ -908,6 +924,8 @@ static CLASS_DEVICE_ATTR(used_rpi, S_IRUGO, lpfc_used_rpi_show, NULL);
static CLASS_DEVICE_ATTR(max_xri, S_IRUGO, lpfc_max_xri_show, NULL);
static CLASS_DEVICE_ATTR(used_xri, S_IRUGO, lpfc_used_xri_show, NULL);
static CLASS_DEVICE_ATTR(npiv_info, S_IRUGO, lpfc_npiv_info_show, NULL);
+static CLASS_DEVICE_ATTR(lpfc_temp_sensor, S_IRUGO, lpfc_temp_sensor_show,
+ NULL);
static char *lpfc_soft_wwn_key = "C99G71SL8032A";
@@ -971,6 +989,14 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
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--;
@@ -1102,7 +1128,13 @@ MODULE_PARM_DESC(lpfc_sli_mode, "SLI mode selector:"
" 2 - select SLI-2 even on SLI-3 capable HBAs,"
" 3 - select SLI-3");
-LPFC_ATTR_R(enable_npiv, 0, 0, 1, "Enable NPIV functionality");
+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 CLASS_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
@@ -1248,6 +1280,13 @@ 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.
*/
@@ -1369,7 +1408,33 @@ LPFC_VPORT_ATTR_R(scan_down, 1, 0, 1,
# Set loop mode if you want to run as an NL_Port. Value range is [0,0x6].
# Default value is 0.
*/
-LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
+static int
+lpfc_topology_set(struct lpfc_hba *phba, int val)
+{
+ int err;
+ uint32_t prev_val;
+ if (val >= 0 && val <= 6) {
+ prev_val = phba->cfg_topology;
+ phba->cfg_topology = val;
+ err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
+ if (err)
+ phba->cfg_topology = prev_val;
+ return err;
+ }
+ 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)
+lpfc_param_store(topology)
+static CLASS_DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
+ lpfc_topology_show, lpfc_topology_store);
/*
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
@@ -1381,7 +1446,59 @@ LPFC_ATTR_RW(topology, 0, 0, 6, "Select Fibre Channel topology");
# 8 = 8 Gigabaud
# Value range is [0,8]. Default value is 0.
*/
-LPFC_ATTR_R(link_speed, 0, 0, 8, "Select link speed");
+static int
+lpfc_link_speed_set(struct lpfc_hba *phba, int val)
+{
+ int err;
+ uint32_t prev_val;
+
+ 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 <= LPFC_MAX_LINK_SPEED)
+ && (LPFC_LINK_SPEED_BITMAP & (1 << val))) {
+ prev_val = phba->cfg_link_speed;
+ phba->cfg_link_speed = val;
+ err = lpfc_issue_lip(lpfc_shost_from_vport(phba->pport));
+ if (err)
+ phba->cfg_link_speed = prev_val;
+ return err;
+ }
+
+ 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)
+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,
+ "0454 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;
+}
+
+lpfc_param_store(link_speed)
+static CLASS_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.
@@ -1479,7 +1596,30 @@ LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
*/
LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, 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_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");
struct class_device_attribute *lpfc_hba_attrs[] = {
&class_device_attr_info,
@@ -1494,6 +1634,7 @@ struct class_device_attribute *lpfc_hba_attrs[] = {
&class_device_attr_state,
&class_device_attr_num_discovered_ports,
&class_device_attr_lpfc_drvr_version,
+ &class_device_attr_lpfc_temp_sensor,
&class_device_attr_lpfc_log_verbose,
&class_device_attr_lpfc_lun_queue_depth,
&class_device_attr_lpfc_hba_queue_depth,
@@ -1530,6 +1671,9 @@ struct class_device_attribute *lpfc_hba_attrs[] = {
&class_device_attr_lpfc_soft_wwnn,
&class_device_attr_lpfc_soft_wwpn,
&class_device_attr_lpfc_soft_wwn_enable,
+ &class_device_attr_lpfc_enable_hba_reset,
+ &class_device_attr_lpfc_enable_hba_heartbeat,
+ &class_device_attr_lpfc_sg_seg_cnt,
NULL,
};
@@ -1552,6 +1696,7 @@ struct class_device_attribute *lpfc_vport_attrs[] = {
&class_device_attr_lpfc_max_luns,
&class_device_attr_nport_evt_cnt,
&class_device_attr_npiv_info,
+ &class_device_attr_lpfc_enable_da_id,
NULL,
};
@@ -1727,13 +1872,18 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
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)) {
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:
@@ -1744,9 +1894,7 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
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 (!(vport->fc_flag & FC_OFFLINE_MODE)) {
printk(KERN_WARNING "mbox_read:Command 0x%x "
@@ -1756,6 +1904,8 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
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:
@@ -1772,6 +1922,8 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
case MBX_LOAD_EXP_ROM:
case MBX_BEACON:
case MBX_DEL_LD_ENTRY:
+ case MBX_SET_VARIABLE:
+ case MBX_WRITE_WWN:
break;
case MBX_READ_SPARM64:
case MBX_READ_LA:
@@ -1793,6 +1945,17 @@ sysfs_mbox_read(struct kobject *kobj, struct bin_attribute *bin_attr,
return -EPERM;
}
+ /* If HBA encountered an error attention, allow only DUMP
+ * mailbox command until the HBA is restarted.
+ */
+ if ((phba->pport->stopped) &&
+ (phba->sysfs_mbox.mbox->mb.mbxCommand
+ != MBX_DUMP_MEMORY)) {
+ sysfs_mbox_idle(phba);
+ spin_unlock_irq(&phba->hbalock);
+ return -EPERM;
+ }
+
phba->sysfs_mbox.mbox->vport = vport;
if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
@@ -1993,7 +2156,8 @@ lpfc_get_host_speed(struct Scsi_Host *shost)
fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
break;
}
- }
+ } else
+ fc_host_speed(shost) = FC_PORTSPEED_UNKNOWN;
spin_unlock_irq(shost->host_lock);
}
@@ -2013,7 +2177,7 @@ lpfc_get_host_fabric_name (struct Scsi_Host *shost)
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(vport->fc_nodename.u.wwn);
+ node_name = 0;
spin_unlock_irq(shost->host_lock);
@@ -2337,8 +2501,6 @@ struct fc_function_template lpfc_transport_functions = {
.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
.terminate_rport_io = lpfc_terminate_rport_io,
- .vport_create = lpfc_vport_create,
- .vport_delete = lpfc_vport_delete,
.dd_fcvport_size = sizeof(struct lpfc_vport *),
};
@@ -2414,21 +2576,23 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
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_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
+ lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
phba->cfg_poll = lpfc_poll;
phba->cfg_soft_wwnn = 0L;
phba->cfg_soft_wwpn = 0L;
- /*
- * 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;
+ lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);
+ /* 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;
/*
* Since the sg_tablesize is module parameter, the sg_dma_buf_size
- * used to create the sg_dma_buf_pool must be dynamically calculated
+ * 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 * sizeof(struct ulp_bde64));
+ ((phba->cfg_sg_seg_cnt + 2) * sizeof(struct ulp_bde64));
lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
return;
}
@@ -2448,5 +2612,6 @@ lpfc_get_vport_cfgparam(struct lpfc_vport *vport)
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;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 08:19:49 +0000