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scst: Introduce scst_reset_scsi_target() and scst_reset_scsi_device()

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This patch does not change any functionality.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8425 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-06-16 20:53:37 +00:00
parent 48eceda39b
commit 126cc447db
1 changed files with 26 additions and 22 deletions
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48
scst/src/scst_targ.c
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@@ -6771,6 +6771,30 @@ out:
return res;
}
static int scst_reset_scsi_target(struct scsi_device *sdev)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
int arg = SG_SCSI_RESET_TARGET;
return scsi_ioctl_reset(sdev, (__force __user int *)&arg);
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26)
return scsi_reset_provider(sdev, SCSI_TRY_RESET_TARGET);
#else
return scsi_reset_provider(sdev, SCSI_TRY_RESET_BUS);
#endif
}
static int scst_reset_scsi_device(struct scsi_device *sdev)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
int arg = SG_SCSI_RESET_DEVICE;
return scsi_ioctl_reset(sdev, (__force __user int *)&arg);
#else
return scsi_reset_provider(sdev, SCSI_TRY_RESET_DEVICE);
#endif
}
/* Returns 0 if the command processing should be continued, <0 otherwise */
static int scst_target_reset(struct scst_mgmt_cmd *mcmd)
{
@@ -6837,18 +6861,7 @@ static int scst_target_reset(struct scst_mgmt_cmd *mcmd)
/* dev->scsi_dev must be non-NULL here */
TRACE(TRACE_MGMT, "Resetting host %d bus ",
dev->scsi_dev->host->host_no);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
{
int arg = SG_SCSI_RESET_TARGET;
rc = scsi_ioctl_reset(dev->scsi_dev,
(__force __user int *)&arg);
}
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 26)
rc = scsi_reset_provider(dev->scsi_dev, SCSI_TRY_RESET_TARGET);
#else
rc = scsi_reset_provider(dev->scsi_dev, SCSI_TRY_RESET_BUS);
#endif
rc = scst_reset_scsi_target(dev->scsi_dev);
TRACE(TRACE_MGMT, "Result of host %d target reset: %s",
dev->scsi_dev->host->host_no,
(rc == SUCCESS) ? "SUCCESS" : "FAILED");
@@ -6908,16 +6921,7 @@ static int scst_lun_reset(struct scst_mgmt_cmd *mcmd)
if (dev->scsi_dev != NULL) {
TRACE(TRACE_MGMT, "Resetting host %d bus ",
dev->scsi_dev->host->host_no);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)
{
int arg = SG_SCSI_RESET_DEVICE;
rc = scsi_ioctl_reset(dev->scsi_dev,
(__force __user int *)&arg);
}
#else
rc = scsi_reset_provider(dev->scsi_dev, SCSI_TRY_RESET_DEVICE);
#endif
rc = scst_reset_scsi_device(dev->scsi_dev);
TRACE(TRACE_MGMT, "scsi_reset_provider(%s) returned %d",
dev->virt_name, rc);
#if 0