[SCSI] IBM VSCSI Client: sending client info to server

Fix the problem in IBM VSCSI Client where the client doesn't send the
information which is expected by the server.

Signed-off-by: Linda Xie <lxie@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 51 insertions, 0 deletions

diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
index 50cb909f314f..035f615817d7 100644
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c
@@ -33,6 +33,10 @@
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
 #include "ibmvscsi.h"
+#include "srp.h"
+
+static char partition_name[97] = "UNKNOWN";
+static unsigned int partition_number = -1;
 
 /* ------------------------------------------------------------
  * Routines for managing the command/response queue
@@ -148,6 +152,48 @@ static void ibmvscsi_task(void *data)
         }
 }
 
+static void gather_partition_info(void)
+{
+        struct device_node *rootdn;
+
+        char *ppartition_name;
+        unsigned int *p_number_ptr;
+
+        /* Retrieve information about this partition */
+        rootdn = find_path_device("/");
+        if (!rootdn) {
+                return;
+        }
+
+        ppartition_name =
+                get_property(rootdn, "ibm,partition-name", NULL);
+        if (ppartition_name)
+                strncpy(partition_name, ppartition_name,
+                                sizeof(partition_name));
+        p_number_ptr =
+                (unsigned int *)get_property(rootdn, "ibm,partition-no",
+                                             NULL);
+        if (p_number_ptr)
+                partition_number = *p_number_ptr;
+}
+
+static void set_adapter_info(struct ibmvscsi_host_data *hostdata)
+{
+        memset(&hostdata->madapter_info, 0x00,
+                        sizeof(hostdata->madapter_info));
+
+        printk(KERN_INFO "rpa_vscsi: SPR_VERSION: %s\n", SRP_VERSION);
+        strcpy(hostdata->madapter_info.srp_version, SRP_VERSION);
+
+        strncpy(hostdata->madapter_info.partition_name, partition_name,
+                        sizeof(hostdata->madapter_info.partition_name));
+
+        hostdata->madapter_info.partition_number = partition_number;
+
+        hostdata->madapter_info.mad_version = 1;
+        hostdata->madapter_info.os_type = 2;
+}
+
 /**
  * initialize_crq_queue: - Initializes and registers CRQ with hypervisor
  * @queue:      crq_queue to initialize and register
@@ -177,6 +223,9 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
         if (dma_mapping_error(queue->msg_token))
                 goto map_failed;
 
+        gather_partition_info();
+        set_adapter_info(hostdata);
+
         rc = plpar_hcall_norets(H_REG_CRQ,
                                 vdev->unit_address,
                                 queue->msg_token, PAGE_SIZE);
@@ -246,6 +295,8 @@ void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
         memset(queue->msgs, 0x00, PAGE_SIZE);
         queue->cur = 0;
 
+        set_adapter_info(hostdata);
+
         /* And re-open it again */
         rc = plpar_hcall_norets(H_REG_CRQ,
                                 vdev->unit_address,