scsi: lpfc: Fix scsi host template for SLI3 vports
SCSI layer sends driver IOs with more s/g segments than driver can handle.
This results in "Too many sg segments from dma_map_sg. Config 64, seg_cnt
219" error messages from the lpfc_scsi_prep_dma_buf_s3() routine.
The was due to use the driver using individual templates for pport and
vport, host reset enabled or not, nvme vs scsi, etc. In the end, there was
a combination for a vport that didn't match the pport.
Rather than enumerating more templates and more discretionary assignments,
revert to a base template that is copied to a template specific to the
pport/vport. Then, based on role, attributes and sli type, modify the
fields that are different for that port. Added a log message to
lpfc_create_port to validate values.
Link: https://lore.kernel.org/r/20200322181304.37655-5-jsmart2021@gmail.com
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index 357fdec..e940a49 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -1225,6 +1225,11 @@ struct lpfc_hba {
#define LPFC_POLL_SLOWPATH 1 /* called from slowpath */
char os_host_name[MAXHOSTNAMELEN];
+
+ /* SCSI host template information - for physical port */
+ struct scsi_host_template port_template;
+ /* SCSI host template information - for all vports */
+ struct scsi_host_template vport_template;
};
static inline struct Scsi_Host *