[SCSI] ibmvscsi: handle large scatter/gather lists
The maximum size of a scatter-gather list that the current IBM VSCSI
Client can handle is 10. This patch adds large scatter-gather support
to the client so that it is capable of handling up to SG_ALL(255)
number of requests in the scatter-gather list.
Signed-off-by: Linda Xie <lxie@us.ibm.com>
Acked by: Dave C Boutcher <sleddog@us.ibm.com>
Rejections fixed up and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.h b/drivers/scsi/ibmvscsi/ibmvscsi.h
index 1030b70..8bec043 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.h
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.h
@@ -68,6 +68,8 @@
void (*cmnd_done) (struct scsi_cmnd *);
struct completion comp;
union viosrp_iu *sync_srp;
+ struct memory_descriptor *ext_list;
+ dma_addr_t ext_list_token;
};
/* a pool of event structs for use */