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[SCSI] lpfc 8.1.7: Adding new issue_reset sysfs attribute

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Adding new issue_reset sysfs attribute

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Smart 2006-07-06 15:50:22 -04:00 committed by James Bottomley
parent 420b630d6e
commit 40496f073f
1 changed files with 43 additions and 0 deletions
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43
drivers/scsi/lpfc/lpfc_attr.c
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@ -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,