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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.c110
1 files changed, 78 insertions, 32 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index a8908e7c368..c992e8328f9 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -482,6 +482,41 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
}
/**
+ * lpfc_link_state_store - Transition the link_state on an HBA port
+ * @dev: class device that is converted into a Scsi_host.
+ * @attr: device attribute, not used.
+ * @buf: one or more lpfc_polling_flags values.
+ * @count: not used.
+ *
+ * Returns:
+ * -EINVAL if the buffer is not "up" or "down"
+ * return from link state change function if non-zero
+ * length of the buf on success
+ **/
+static ssize_t
+lpfc_link_state_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct Scsi_Host *shost = class_to_shost(dev);
+ struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+ struct lpfc_hba *phba = vport->phba;
+
+ int status = -EINVAL;
+
+ if ((strncmp(buf, "up", sizeof("up") - 1) == 0) &&
+ (phba->link_state == LPFC_LINK_DOWN))
+ status = phba->lpfc_hba_init_link(phba);
+ else if ((strncmp(buf, "down", sizeof("down") - 1) == 0) &&
+ (phba->link_state >= LPFC_LINK_UP))
+ status = phba->lpfc_hba_down_link(phba);
+
+ if (status == 0)
+ return strlen(buf);
+ else
+ return status;
+}
+
+/**
* lpfc_num_discovered_ports_show - Return sum of mapped and unmapped vports
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
@@ -1219,7 +1254,7 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
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;\
+ uint val = 0;\
val = phba->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%d\n",\
phba->cfg_##attr);\
@@ -1247,7 +1282,7 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
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;\
+ uint val = 0;\
val = phba->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%#x\n",\
phba->cfg_##attr);\
@@ -1274,7 +1309,7 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
**/
#define lpfc_param_init(attr, default, minval, maxval) \
static int \
-lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
+lpfc_##attr##_init(struct lpfc_hba *phba, uint val) \
{ \
if (val >= minval && val <= maxval) {\
phba->cfg_##attr = val;\
@@ -1309,7 +1344,7 @@ lpfc_##attr##_init(struct lpfc_hba *phba, int val) \
**/
#define lpfc_param_set(attr, default, minval, maxval) \
static int \
-lpfc_##attr##_set(struct lpfc_hba *phba, int val) \
+lpfc_##attr##_set(struct lpfc_hba *phba, uint val) \
{ \
if (val >= minval && val <= maxval) {\
phba->cfg_##attr = val;\
@@ -1350,7 +1385,7 @@ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
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;\
+ uint val = 0;\
if (!isdigit(buf[0]))\
return -EINVAL;\
if (sscanf(buf, "%i", &val) != 1)\
@@ -1382,7 +1417,7 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
- int val = 0;\
+ uint val = 0;\
val = vport->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%d\n", vport->cfg_##attr);\
}
@@ -1409,7 +1444,7 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
- int val = 0;\
+ uint val = 0;\
val = vport->cfg_##attr;\
return snprintf(buf, PAGE_SIZE, "%#x\n", vport->cfg_##attr);\
}
@@ -1434,7 +1469,7 @@ lpfc_##attr##_show(struct device *dev, struct device_attribute *attr, \
**/
#define lpfc_vport_param_init(attr, default, minval, maxval) \
static int \
-lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
+lpfc_##attr##_init(struct lpfc_vport *vport, uint val) \
{ \
if (val >= minval && val <= maxval) {\
vport->cfg_##attr = val;\
@@ -1466,7 +1501,7 @@ lpfc_##attr##_init(struct lpfc_vport *vport, int val) \
**/
#define lpfc_vport_param_set(attr, default, minval, maxval) \
static int \
-lpfc_##attr##_set(struct lpfc_vport *vport, int val) \
+lpfc_##attr##_set(struct lpfc_vport *vport, uint val) \
{ \
if (val >= minval && val <= maxval) {\
vport->cfg_##attr = val;\
@@ -1502,7 +1537,7 @@ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
{ \
struct Scsi_Host *shost = class_to_shost(dev);\
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;\
- int val=0;\
+ uint val = 0;\
if (!isdigit(buf[0]))\
return -EINVAL;\
if (sscanf(buf, "%i", &val) != 1)\
@@ -1515,22 +1550,22 @@ lpfc_##attr##_store(struct device *dev, struct device_attribute *attr, \
#define LPFC_ATTR(name, defval, minval, maxval, desc) \
-static int lpfc_##name = defval;\
-module_param(lpfc_##name, int, 0);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_init(name, defval, minval, maxval)
#define LPFC_ATTR_R(name, defval, minval, maxval, desc) \
-static int lpfc_##name = defval;\
-module_param(lpfc_##name, int, 0);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_ATTR_RW(name, defval, minval, maxval, desc) \
-static int lpfc_##name = defval;\
-module_param(lpfc_##name, int, 0);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
@@ -1540,16 +1575,16 @@ 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);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
-static int lpfc_##name = defval;\
-module_param(lpfc_##name, int, 0);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_param_hex_show(name)\
lpfc_param_init(name, defval, minval, maxval)\
@@ -1559,22 +1594,22 @@ 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);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_init(name, defval, minval, maxval)
#define LPFC_VPORT_ATTR_R(name, defval, minval, maxval, desc) \
-static int lpfc_##name = defval;\
-module_param(lpfc_##name, int, 0);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_VPORT_ATTR_RW(name, defval, minval, maxval, desc) \
-static int lpfc_##name = defval;\
-module_param(lpfc_##name, int, 0);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
@@ -1584,16 +1619,16 @@ 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);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
static DEVICE_ATTR(lpfc_##name, S_IRUGO , lpfc_##name##_show, NULL)
#define LPFC_VPORT_ATTR_HEX_RW(name, defval, minval, maxval, desc) \
-static int lpfc_##name = defval;\
-module_param(lpfc_##name, int, 0);\
+static uint lpfc_##name = defval;\
+module_param(lpfc_##name, uint, 0);\
MODULE_PARM_DESC(lpfc_##name, desc);\
lpfc_vport_param_hex_show(name)\
lpfc_vport_param_init(name, defval, minval, maxval)\
@@ -1614,7 +1649,8 @@ 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(link_state, S_IRUGO | S_IWUSR, lpfc_link_state_show,
+ lpfc_link_state_store);
static DEVICE_ATTR(option_rom_version, S_IRUGO,
lpfc_option_rom_version_show, NULL);
static DEVICE_ATTR(num_discovered_ports, S_IRUGO,
@@ -1897,6 +1933,15 @@ static DEVICE_ATTR(lpfc_enable_npiv, S_IRUGO,
lpfc_enable_npiv_show, NULL);
/*
+# lpfc_suppress_link_up: Bring link up at initialization
+# 0x0 = bring link up (issue MBX_INIT_LINK)
+# 0x1 = do NOT bring link up at initialization(MBX_INIT_LINK)
+# 0x2 = never bring up link
+# Default value is 0.
+*/
+LPFC_ATTR_R(suppress_link_up, 0, 0, 2, "Suppress Link Up at initialization");
+
+/*
# 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.
*/
@@ -3278,6 +3323,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_prot_sg_seg_cnt,
&dev_attr_lpfc_aer_support,
&dev_attr_lpfc_aer_state_cleanup,
+ &dev_attr_lpfc_suppress_link_up,
NULL,
};
@@ -4456,7 +4502,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
lpfc_hba_queue_depth_init(phba, lpfc_hba_queue_depth);
lpfc_hba_log_verbose_init(phba, lpfc_log_verbose);
lpfc_aer_support_init(phba, lpfc_aer_support);
-
+ lpfc_suppress_link_up_init(phba, lpfc_suppress_link_up);
return;
}
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-23 09:28:22 +0000