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authorSwen Schillig <swen@vnet.ibm.com>2011-08-15 14:40:32 +0200
committerJames Bottomley <JBottomley@Parallels.com>2011-08-27 08:37:03 -0600
commit86a9668a8d29ea711613e1cb37efa68e7c4db564 (patch)
tree58a39ba842f928bd9629cfb8468322a96fe7459f /drivers/s390/scsi/zfcp_scsi.c
parentdfe5bb506172307e43287b8962348fb85801c0f4 (diff)
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[SCSI] zfcp: support for hardware data router
FICON Express8S supports hardware data router, which requires an adapted qdio request format. This part 2/2 exploits the functionality in zfcp. Signed-off-by: Swen Schillig <swen@vnet.ibm.com> Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/s390/scsi/zfcp_scsi.c')
-rw-r--r--drivers/s390/scsi/zfcp_scsi.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 96c31a70445f..09126a9d62ff 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -306,8 +306,8 @@ static struct scsi_host_template zfcp_scsi_host_template = {
.proc_name = "zfcp",
.can_queue = 4096,
.this_id = -1,
- .sg_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ,
- .max_sectors = (ZFCP_QDIO_MAX_SBALES_PER_REQ * 8),
+ .sg_tablesize = 1, /* adjusted later */
+ .max_sectors = 8, /* adjusted later */
.dma_boundary = ZFCP_QDIO_SBALE_LEN - 1,
.cmd_per_lun = 1,
.use_clustering = 1,
@@ -665,9 +665,9 @@ void zfcp_scsi_set_prot(struct zfcp_adapter *adapter)
adapter->adapter_features & FSF_FEATURE_DIX_PROT_TCPIP) {
mask |= SHOST_DIX_TYPE1_PROTECTION;
scsi_host_set_guard(shost, SHOST_DIX_GUARD_IP);
- shost->sg_prot_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ / 2;
- shost->sg_tablesize = ZFCP_QDIO_MAX_SBALES_PER_REQ / 2;
- shost->max_sectors = ZFCP_QDIO_MAX_SBALES_PER_REQ * 8 / 2;
+ shost->sg_prot_tablesize = adapter->qdio->max_sbale_per_req / 2;
+ shost->sg_tablesize = adapter->qdio->max_sbale_per_req / 2;
+ shost->max_sectors = shost->sg_tablesize * 8;
}
scsi_host_set_prot(shost, mask);