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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/scsi/libsas/sas_task.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/scsi/libsas/sas_task.c')
-rw-r--r--kernel/drivers/scsi/libsas/sas_task.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/kernel/drivers/scsi/libsas/sas_task.c b/kernel/drivers/scsi/libsas/sas_task.c
new file mode 100644
index 000000000..a78e5bd3e
--- /dev/null
+++ b/kernel/drivers/scsi/libsas/sas_task.c
@@ -0,0 +1,37 @@
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <scsi/sas.h>
+#include <scsi/libsas.h>
+
+/* fill task_status_struct based on SSP response frame */
+void sas_ssp_task_response(struct device *dev, struct sas_task *task,
+ struct ssp_response_iu *iu)
+{
+ struct task_status_struct *tstat = &task->task_status;
+
+ tstat->resp = SAS_TASK_COMPLETE;
+
+ if (iu->datapres == 0)
+ tstat->stat = iu->status;
+ else if (iu->datapres == 1)
+ tstat->stat = iu->resp_data[3];
+ else if (iu->datapres == 2) {
+ tstat->stat = SAM_STAT_CHECK_CONDITION;
+ tstat->buf_valid_size =
+ min_t(int, SAS_STATUS_BUF_SIZE,
+ be32_to_cpu(iu->sense_data_len));
+ memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
+
+ if (iu->status != SAM_STAT_CHECK_CONDITION)
+ dev_printk(KERN_WARNING, dev,
+ "dev %llx sent sense data, but "
+ "stat(%x) is not CHECK CONDITION\n",
+ SAS_ADDR(task->dev->sas_addr),
+ iu->status);
+ }
+ else
+ /* when datapres contains corrupt/unknown value... */
+ tstat->stat = SAM_STAT_CHECK_CONDITION;
+}
+EXPORT_SYMBOL_GPL(sas_ssp_task_response);
+