X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fscsi%2Fqla4xxx%2Fql4_mbx.c;h=c577d79bd7e8676faa222b6a1e1b9eaf7fc122a2;hb=756135215ec743be6fdce2bdebe8cdb9f8a231f6;hp=35cd73c72a6886e8b5582d4b2840d7b3b189f013;hpb=d9ff963801e4f7648c55a27413a1b1de59480a30;p=linux-2.6

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 35cd73c72a..c577d79bd7 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -713,6 +713,45 @@ int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
 	return status;
 }
 
+/**
+ * qla4xxx_reset_target - issues target Reset
+ * @ha: Pointer to host adapter structure.
+ * @db_entry: Pointer to device database entry
+ * @un_entry: Pointer to lun entry structure
+ *
+ * This routine performs a TARGET RESET on the specified target.
+ * The caller must ensure that the ddb_entry pointers
+ * are valid before calling this routine.
+ **/
+int qla4xxx_reset_target(struct scsi_qla_host *ha,
+			 struct ddb_entry *ddb_entry)
+{
+	uint32_t mbox_cmd[MBOX_REG_COUNT];
+	uint32_t mbox_sts[MBOX_REG_COUNT];
+	int status = QLA_SUCCESS;
+
+	DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
+		      ddb_entry->os_target_id));
+
+	/*
+	 * Send target reset command to ISP, so that the ISP will return all
+	 * outstanding requests with RESET status
+	 */
+	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
+	memset(&mbox_sts, 0, sizeof(mbox_sts));
+
+	mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
+	mbox_cmd[1] = ddb_entry->fw_ddb_index;
+	mbox_cmd[5] = 0x01;	/* Immediate Command Enable */
+
+	qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
+				&mbox_sts[0]);
+	if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
+	    mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
+		status = QLA_ERROR;
+
+	return status;
+}
 
 int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
 		      uint32_t offset, uint32_t len)