Merge with http://kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git

[linux-2.6] / drivers / scsi / ibmvscsi / rpa_vscsi.c

diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
index 035f615817d74362bbbed9a767b9d92044ac4ebd..75db2f5c545e999d2b06b313560bf3610447bdd5 100644 (file)
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c
@@ -28,6 +28,7 @@
  */
 
 #include <asm/vio.h>
+#include <asm/prom.h>
 #include <asm/iommu.h>
 #include <asm/hvcall.h>
 #include <linux/dma-mapping.h>
@@ -229,6 +230,11 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
        rc = plpar_hcall_norets(H_REG_CRQ,
                                vdev->unit_address,
                                queue->msg_token, PAGE_SIZE);
+       if (rc == H_Resource) 
+               /* maybe kexecing and resource is busy. try a reset */
+               rc = ibmvscsi_reset_crq_queue(queue,
+                                             hostdata);
+
        if (rc == 2) {
                /* Adapter is good, but other end is not ready */
                printk(KERN_WARNING "ibmvscsi: Partner adapter not ready\n");
@@ -280,7 +286,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
  * @hostdata:  ibmvscsi_host_data of host
  *
  */
-void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
+int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
                              struct ibmvscsi_host_data *hostdata)
 {
        int rc;
@@ -308,4 +314,5 @@ void ibmvscsi_reset_crq_queue(struct crq_queue *queue,
                printk(KERN_WARNING
                       "ibmvscsi: couldn't register crq--rc 0x%x\n", rc);
        }
+       return rc;
 }