Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (276 commits)
  [SCSI] zfcp: Trigger logging in the FCP channel on qdio error conditions
  [SCSI] zfcp: Introduce experimental support for DIF/DIX
  [SCSI] zfcp: Enable data division support for FCP devices
  [SCSI] zfcp: Prevent access on uninitialized memory.
  [SCSI] zfcp: Post events through FC transport class
  [SCSI] zfcp: Cleanup QDIO attachment and improve processing.
  [SCSI] zfcp: Cleanup function parameters for sbal value.
  [SCSI] zfcp: Use correct width for timer_interval field
  [SCSI] zfcp: Remove SCSI device when removing unit
  [SCSI] zfcp: Use memdup_user and kstrdup
  [SCSI] zfcp: Fix retry after failed "open port" erp action
  [SCSI] zfcp: Fail erp after timeout
  [SCSI] zfcp: Use forced_reopen in terminate_rport_io callback
  [SCSI] zfcp: Register SCSI devices after successful fc_remote_port_add
  [SCSI] zfcp: Do not try "forced close" when port is already closed
  [SCSI] zfcp: Do not unblock rport from REOPEN_PORT_FORCED
  [SCSI] sd: add support for runtime PM
  [SCSI] implement runtime Power Management
  [SCSI] convert to the new PM framework
  [SCSI] Unify SAM_ and SAM_STAT_ macros
  ...

1 files changed, 68 insertions, 5 deletions

diff --git a/drivers/scsi/qla4xxx/ql4_iocb.c b/drivers/scsi/qla4xxx/ql4_iocb.c
index e66f3f263f49..f89973deac5b 100644
--- a/drivers/scsi/qla4xxx/ql4_iocb.c
+++ b/drivers/scsi/qla4xxx/ql4_iocb.c
@@ -108,8 +108,7 @@ int qla4xxx_send_marker_iocb(struct scsi_qla_host *ha,
 	wmb();
 
 	/* Tell ISP it's got a new I/O request */
-	writel(ha->request_in, &ha->reg->req_q_in);
-	readl(&ha->reg->req_q_in);
+	ha->isp_ops->queue_iocb(ha);
 
 exit_send_marker:
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
@@ -194,6 +193,72 @@ static void qla4xxx_build_scsi_iocbs(struct srb *srb,
 }
 
 /**
+ * qla4_8xxx_queue_iocb - Tell ISP it's got new request(s)
+ * @ha: pointer to host adapter structure.
+ *
+ * This routine notifies the ISP that one or more new request
+ * queue entries have been placed on the request queue.
+ **/
+void qla4_8xxx_queue_iocb(struct scsi_qla_host *ha)
+{
+	uint32_t dbval = 0;
+	unsigned long wtime;
+
+	dbval = 0x14 | (ha->func_num << 5);
+	dbval = dbval | (0 << 8) | (ha->request_in << 16);
+	writel(dbval, (unsigned long __iomem *)ha->nx_db_wr_ptr);
+	wmb();
+
+	wtime = jiffies + (2 * HZ);
+	while (readl((void __iomem *)ha->nx_db_rd_ptr) != dbval &&
+	    !time_after_eq(jiffies, wtime)) {
+		writel(dbval, (unsigned long __iomem *)ha->nx_db_wr_ptr);
+		wmb();
+	}
+}
+
+/**
+ * qla4_8xxx_complete_iocb - Tell ISP we're done with response(s)
+ * @ha: pointer to host adapter structure.
+ *
+ * This routine notifies the ISP that one or more response/completion
+ * queue entries have been processed by the driver.
+ * This also clears the interrupt.
+ **/
+void qla4_8xxx_complete_iocb(struct scsi_qla_host *ha)
+{
+	writel(ha->response_out, &ha->qla4_8xxx_reg->rsp_q_out);
+	readl(&ha->qla4_8xxx_reg->rsp_q_out);
+}
+
+/**
+ * qla4xxx_queue_iocb - Tell ISP it's got new request(s)
+ * @ha: pointer to host adapter structure.
+ *
+ * This routine is notifies the ISP that one or more new request
+ * queue entries have been placed on the request queue.
+ **/
+void qla4xxx_queue_iocb(struct scsi_qla_host *ha)
+{
+	writel(ha->request_in, &ha->reg->req_q_in);
+	readl(&ha->reg->req_q_in);
+}
+
+/**
+ * qla4xxx_complete_iocb - Tell ISP we're done with response(s)
+ * @ha: pointer to host adapter structure.
+ *
+ * This routine is notifies the ISP that one or more response/completion
+ * queue entries have been processed by the driver.
+ * This also clears the interrupt.
+ **/
+void qla4xxx_complete_iocb(struct scsi_qla_host *ha)
+{
+	writel(ha->response_out, &ha->reg->rsp_q_out);
+	readl(&ha->reg->rsp_q_out);
+}
+
+/**
  * qla4xxx_send_command_to_isp - issues command to HBA
  * @ha: pointer to host adapter structure.
  * @srb: pointer to SCSI Request Block to be sent to ISP
@@ -310,9 +375,7 @@ int qla4xxx_send_command_to_isp(struct scsi_qla_host *ha, struct srb * srb)
 	srb->iocb_cnt = req_cnt;
 	ha->req_q_count -= req_cnt;
 
-	/* Debug print statements */
-	writel(ha->request_in, &ha->reg->req_q_in);
-	readl(&ha->reg->req_q_in);
+	ha->isp_ops->queue_iocb(ha);
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 
 	return QLA_SUCCESS;