[SCSI] mpt2sas: add query task support for MPT2COMMAND ioctl

This patch will find an active mid for a query_task request via the ioctl path.

This code is already there for task_abort, so this patch combining code using
the same fuction _ctl_set_task_mid(), previously _ctl_do_task_abort().

Signed-off-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index ba6ab170bdf02ca5fc75e2b8a6b22bce943b23c1..14e473d1fa7b18193e0673d86dec3bfc8737aa84 100644 (file)
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -473,7 +473,7 @@ _ctl_poll(struct file *filep, poll_table *wait)
 }
 
 /**
- * _ctl_do_task_abort - assign an active smid to the abort_task
+ * _ctl_set_task_mid - assign an active smid to tm request
  * @ioc: per adapter object
  * @karg - (struct mpt2_ioctl_command)
  * @tm_request - pointer to mf from user space
@@ -482,7 +482,7 @@ _ctl_poll(struct file *filep, poll_table *wait)
  * during failure, the reply frame is filled.
  */
 static int
-_ctl_do_task_abort(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
+_ctl_set_task_mid(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
     Mpi2SCSITaskManagementRequest_t *tm_request)
 {
        u8 found = 0;
@@ -494,6 +494,14 @@ _ctl_do_task_abort(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
        Mpi2SCSITaskManagementReply_t *tm_reply;
        u32 sz;
        u32 lun;
+       char *desc = NULL;
+
+       if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK)
+               desc = "abort_task";
+       else if (tm_request->TaskType == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK)
+               desc = "query_task";
+       else
+               return 0;
 
        lun = scsilun_to_int((struct scsi_lun *)tm_request->LUN);
 
@@ -517,13 +525,13 @@ _ctl_do_task_abort(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
        spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
 
        if (!found) {
-               dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ABORT_TASK: "
-                   "DevHandle(0x%04x), lun(%d), no active mid!!\n", ioc->name,
-                   tm_request->DevHandle, lun));
+               dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+                   "handle(0x%04x), lun(%d), no active mid!!\n", ioc->name,
+                   desc, tm_request->DevHandle, lun));
                tm_reply = ioc->ctl_cmds.reply;
                tm_reply->DevHandle = tm_request->DevHandle;
                tm_reply->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
-               tm_reply->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK;
+               tm_reply->TaskType = tm_request->TaskType;
                tm_reply->MsgLength = sizeof(Mpi2SCSITaskManagementReply_t)/4;
                tm_reply->VP_ID = tm_request->VP_ID;
                tm_reply->VF_ID = tm_request->VF_ID;
@@ -535,9 +543,9 @@ _ctl_do_task_abort(struct MPT2SAS_ADAPTER *ioc, struct mpt2_ioctl_command *karg,
                return 1;
        }
 
-       dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "ABORT_TASK: "
-           "DevHandle(0x%04x), lun(%d), smid(%d)\n", ioc->name,
-           tm_request->DevHandle, lun, tm_request->TaskMID));
+       dctlprintk(ioc, printk(MPT2SAS_DEBUG_FMT "%s: "
+           "handle(0x%04x), lun(%d), task_mid(%d)\n", ioc->name,
+           desc, tm_request->DevHandle, lun, tm_request->TaskMID));
        return 0;
 }
 
@@ -739,8 +747,10 @@ _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
                    (Mpi2SCSITaskManagementRequest_t *)mpi_request;
 
                if (tm_request->TaskType ==
-                   MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK) {
-                       if (_ctl_do_task_abort(ioc, &karg, tm_request)) {
+                   MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK ||
+                   tm_request->TaskType ==
+                   MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) {
+                       if (_ctl_set_task_mid(ioc, &karg, tm_request)) {
                                mpt2sas_base_free_smid(ioc, smid);
                                goto out;
                        }