[SCSI] Fix ibmvscsi client for multiplatform iSeries+pSeries kernel

If you build a multiplatform kernel for iSeries and pSeries, with
ibmvscsic support, the resulting client doesn't work on iSeries.

This fixes that, using the appropriate low-level operations
for the machine detected at runtime.

[jejb: fixed up rejections around the srp transport patch]

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 23 insertions, 14 deletions

diff --git a/drivers/scsi/ibmvscsi/iseries_vscsi.c b/drivers/scsi/ibmvscsi/iseries_vscsi.c
index 6aeb5f003c3c..0775fdee5fa8 100644
--- a/drivers/scsi/ibmvscsi/iseries_vscsi.c
+++ b/drivers/scsi/ibmvscsi/iseries_vscsi.c
@@ -53,7 +53,7 @@ struct srp_lp_event {
 /** 
  * standard interface for handling logical partition events.
  */
-static void ibmvscsi_handle_event(struct HvLpEvent *lpevt)
+static void iseriesvscsi_handle_event(struct HvLpEvent *lpevt)
 {
         struct srp_lp_event *evt = (struct srp_lp_event *)lpevt;
 
@@ -74,9 +74,9 @@ static void ibmvscsi_handle_event(struct HvLpEvent *lpevt)
 /* ------------------------------------------------------------
  * Routines for driver initialization
  */
-int ibmvscsi_init_crq_queue(struct crq_queue *queue,
-                            struct ibmvscsi_host_data *hostdata,
-                            int max_requests)
+static int iseriesvscsi_init_crq_queue(struct crq_queue *queue,
+                                       struct ibmvscsi_host_data *hostdata,
+                                       int max_requests)
 {
         int rc;
 
@@ -88,7 +88,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
                 goto viopath_open_failed;
         }
 
-        rc = vio_setHandler(viomajorsubtype_scsi, ibmvscsi_handle_event);
+        rc = vio_setHandler(viomajorsubtype_scsi, iseriesvscsi_handle_event);
         if (rc < 0) {
                 printk("vio_setHandler failed with rc %d in open_event_path\n",
                        rc);
@@ -102,9 +102,9 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
         return -1;
 }
 
-void ibmvscsi_release_crq_queue(struct crq_queue *queue,
-                                struct ibmvscsi_host_data *hostdata,
-                                int max_requests)
+static void iseriesvscsi_release_crq_queue(struct crq_queue *queue,
+                                           struct ibmvscsi_host_data *hostdata,
+                                           int max_requests)
 {
         vio_clearHandler(viomajorsubtype_scsi);
         viopath_close(viopath_hostLp, viomajorsubtype_scsi, max_requests);
@@ -117,8 +117,8 @@ void ibmvscsi_release_crq_queue(struct crq_queue *queue,
  *
  * no-op for iSeries
  */
-int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
-                              struct ibmvscsi_host_data *hostdata)
+static int iseriesvscsi_reset_crq_queue(struct crq_queue *queue,
+                                        struct ibmvscsi_host_data *hostdata)
 {
         return 0;
 }
@@ -130,19 +130,20 @@ int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
  *
  * no-op for iSeries
  */
-int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,
-                                struct ibmvscsi_host_data *hostdata)
+static int iseriesvscsi_reenable_crq_queue(struct crq_queue *queue,
+                                           struct ibmvscsi_host_data *hostdata)
 {
         return 0;
 }
 
 /**
- * ibmvscsi_send_crq: - Send a CRQ
+ * iseriesvscsi_send_crq: - Send a CRQ
  * @hostdata:   the adapter
  * @word1:      the first 64 bits of the data
  * @word2:      the second 64 bits of the data
  */
-int ibmvscsi_send_crq(struct ibmvscsi_host_data *hostdata, u64 word1, u64 word2)
+static int iseriesvscsi_send_crq(struct ibmvscsi_host_data *hostdata,
+                                 u64 word1, u64 word2)
 {
         single_host_data = hostdata;
         return HvCallEvent_signalLpEventFast(viopath_hostLp,
@@ -156,3 +157,11 @@ int ibmvscsi_send_crq(struct ibmvscsi_host_data *hostdata, u64 word1, u64 word2)
                                              VIOVERSION << 16, word1, word2, 0,
                                              0);
 }
+
+struct ibmvscsi_ops iseriesvscsi_ops = {
+        .init_crq_queue = iseriesvscsi_init_crq_queue,
+        .release_crq_queue = iseriesvscsi_release_crq_queue,
+        .reset_crq_queue = iseriesvscsi_reset_crq_queue,
+        .reenable_crq_queue = iseriesvscsi_reenable_crq_queue,
+        .send_crq = iseriesvscsi_send_crq,
+};