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authorJames Smart <James.Smart@Emulex.Com>2006-07-06 15:50:22 -0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-07-09 10:44:08 -0500
commit40496f073ffe75c59414a7236f95ecbc49562596 (patch)
tree7f29d920f041be13f78e63186f9e5196b6f36f1e
parent420b630d6e9ff41dc3e2a2a2808b67907951e094 (diff)
[SCSI] lpfc 8.1.7: Adding new issue_reset sysfs attribute
Adding new issue_reset sysfs attribute Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 511de17a1f8..cdae011b281 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -243,6 +243,47 @@ lpfc_issue_lip(struct Scsi_Host *host)
return 0;
}
+static int
+lpfc_selective_reset(struct lpfc_hba *phba)
+{
+ struct completion online_compl;
+ int status = 0;
+
+ init_completion(&online_compl);
+ lpfc_workq_post_event(phba, &status, &online_compl,
+ LPFC_EVT_OFFLINE);
+ wait_for_completion(&online_compl);
+
+ if (status != 0)
+ return -EIO;
+
+ init_completion(&online_compl);
+ lpfc_workq_post_event(phba, &status, &online_compl,
+ LPFC_EVT_ONLINE);
+ wait_for_completion(&online_compl);
+
+ if (status != 0)
+ return -EIO;
+
+ return 0;
+}
+
+static ssize_t
+lpfc_issue_reset(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;
+ int status = -EINVAL;
+
+ if (strncmp(buf, "selective", sizeof("selective") - 1) == 0)
+ status = lpfc_selective_reset(phba);
+
+ if (status == 0)
+ return strlen(buf);
+ else
+ return status;
+}
+
static ssize_t
lpfc_nport_evt_cnt_show(struct class_device *cdev, char *buf)
{
@@ -546,6 +587,7 @@ static CLASS_DEVICE_ATTR(board_online, S_IRUGO | S_IWUSR,
lpfc_board_online_show, lpfc_board_online_store);
static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
lpfc_board_mode_show, lpfc_board_mode_store);
+static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
static int lpfc_poll = 0;
module_param(lpfc_poll, int, 0);
@@ -751,6 +793,7 @@ struct class_device_attribute *lpfc_host_attrs[] = {
&class_device_attr_management_version,
&class_device_attr_board_online,
&class_device_attr_board_mode,
+ &class_device_attr_issue_reset,
&class_device_attr_lpfc_poll,
&class_device_attr_lpfc_poll_tmo,
NULL,