From: Moore, Eric <Eric.Moore@lsil.com>
Date: Thu, 26 Jan 2006 01:05:12 +0000 (-0700)
Subject: [SCSI] fusion: target reset when drive is being removed
X-Git-Tag: v2.6.16-rc2~242^2~22
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7d3eecf7b2195c64d26f7e7d105d00e5a6dd702e;p=linux-2.6

[SCSI] fusion: target reset when drive is being removed

The issuing of the target reset
used in device hot removal case so the
firmware queue is flushed out off outstanding
commands.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 8e77837c07..190bd940bb 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -324,6 +324,7 @@ mptsas_slave_destroy(struct scsi_device *sdev)
 	struct sas_rphy *rphy;
 	struct mptsas_portinfo *p;
 	int i;
+	VirtDevice *vdev;
 
 	/*
 	 * Handle hotplug removal case.
@@ -347,8 +348,29 @@ mptsas_slave_destroy(struct scsi_device *sdev)
  out:
 	mutex_unlock(&hd->ioc->sas_topology_mutex);
 	/*
-	 * TODO: Issue target reset to flush firmware outstanding commands.
+	 * Issue target reset to flush firmware outstanding commands.
 	 */
+	vdev = sdev->hostdata;
+	if (vdev->configured_lun){
+		if (mptscsih_TMHandler(hd,
+		     MPI_SCSITASKMGMT_TASKTYPE_TARGET_RESET,
+		     vdev->bus_id,
+		     vdev->target_id,
+		     0, 0, 5 /* 5 second timeout */)
+		     < 0){
+
+			/* The TM request failed!
+			 * Fatal error case.
+			 */
+			printk(MYIOC_s_WARN_FMT
+		       "Error processing TaskMgmt id=%d TARGET_RESET\n",
+				hd->ioc->name,
+				vdev->target_id);
+
+			hd->tmPending = 0;
+			hd->tmState = TM_STATE_NONE;
+		}
+	}
 	mptscsih_slave_destroy(sdev);
 }