[SCSI] zfcp: Cleanup function parameters for sbal value.
A lot of functions require the amount of SBALs as one of their
parameter which is most times invariable. Therefore remove this
parameter and set the SBAL value explicitly if a non standard value is
required. In addition the warning message "oversized data" is
replaced with a BUG_ON() statement assuring the limits defined and
requested by zfcp.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index ee0c1df..5f502c9 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -959,8 +959,7 @@
static int zfcp_fsf_setup_ct_els_sbals(struct zfcp_fsf_req *req,
struct scatterlist *sg_req,
- struct scatterlist *sg_resp,
- int max_sbals)
+ struct scatterlist *sg_resp)
{
struct zfcp_adapter *adapter = req->adapter;
u32 feat = adapter->adapter_features;
@@ -983,15 +982,14 @@
return 0;
}
- bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req,
- sg_req, max_sbals);
+ bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req, sg_req);
if (bytes <= 0)
return -EIO;
req->qtcb->bottom.support.req_buf_length = bytes;
zfcp_qdio_skip_to_last_sbale(&req->qdio_req);
bytes = zfcp_qdio_sbals_from_sg(adapter->qdio, &req->qdio_req,
- sg_resp, max_sbals);
+ sg_resp);
req->qtcb->bottom.support.resp_buf_length = bytes;
if (bytes <= 0)
return -EIO;
@@ -1002,11 +1000,11 @@
static int zfcp_fsf_setup_ct_els(struct zfcp_fsf_req *req,
struct scatterlist *sg_req,
struct scatterlist *sg_resp,
- int max_sbals, unsigned int timeout)
+ unsigned int timeout)
{
int ret;
- ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp, max_sbals);
+ ret = zfcp_fsf_setup_ct_els_sbals(req, sg_req, sg_resp);
if (ret)
return ret;
@@ -1046,8 +1044,7 @@
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
- ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp,
- ZFCP_FSF_MAX_SBALS_PER_REQ, timeout);
+ ret = zfcp_fsf_setup_ct_els(req, ct->req, ct->resp, timeout);
if (ret)
goto failed_send;
@@ -1143,7 +1140,10 @@
}
req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
- ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, 2, timeout);
+
+ zfcp_qdio_sbal_limit(qdio, &req->qdio_req, 2);
+
+ ret = zfcp_fsf_setup_ct_els(req, els->req, els->resp, timeout);
if (ret)
goto failed_send;
@@ -2259,20 +2259,9 @@
zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd);
real_bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
- scsi_sglist(scsi_cmnd),
- ZFCP_FSF_MAX_SBALS_PER_REQ);
- if (unlikely(real_bytes < 0)) {
- if (req->qdio_req.sbal_number >= ZFCP_FSF_MAX_SBALS_PER_REQ) {
- dev_err(&adapter->ccw_device->dev,
- "Oversize data package, unit 0x%016Lx "
- "on port 0x%016Lx closed\n",
- (unsigned long long)unit->fcp_lun,
- (unsigned long long)unit->port->wwpn);
- zfcp_erp_unit_shutdown(unit, 0, "fssfct1", req);
- retval = -EINVAL;
- }
+ scsi_sglist(scsi_cmnd));
+ if (unlikely(real_bytes < 0))
goto failed_scsi_cmnd;
- }
retval = zfcp_fsf_req_send(req);
if (unlikely(retval))
@@ -2391,9 +2380,8 @@
bottom->operation_subtype = FSF_CFDC_OPERATION_SUBTYPE;
bottom->option = fsf_cfdc->option;
- bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req,
- fsf_cfdc->sg,
- ZFCP_FSF_MAX_SBALS_PER_REQ);
+ bytes = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, fsf_cfdc->sg);
+
if (bytes != ZFCP_CFDC_MAX_SIZE) {
zfcp_fsf_req_free(req);
goto out;