scsi: lpfc: Fix secure firmware updates

Orabug: 27631736

Firmware update fails with: status x17 add_status x56 on the final write

If multiple DMA buffers are used for the download, some firmware revs
have difficulty with signatures and crcs split across the dma buffer
boundaries.  Resolve by making all writes be a single 4k page in length.

Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 184fc2b9a8bcbda9c14d0a1e7fbecfc028c7702e)
Signed-off-by: Dick dkennedy <dick.kennedy@broadcom.com>
Signed-off-by: Dan Duval <dan.duval@oracle.com>
Reviewed-by: Jack Vogel <jack.vogel@oracle.com>

diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 6e6ffd121526e899beaf52bc52714c9e4f19963d..da53df2cd4a4a700e6753423f7131747ea65760a 100644 (file)
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -3263,7 +3263,7 @@ struct lpfc_mbx_get_port_name {
 #define MB_CEQ_STATUS_QUEUE_FLUSHING           0x4
 #define MB_CQE_STATUS_DMA_FAILED               0x5
 
-#define LPFC_MBX_WR_CONFIG_MAX_BDE             8
+#define LPFC_MBX_WR_CONFIG_MAX_BDE             1
 struct lpfc_mbx_wr_object {
        struct mbox_header header;
        union {