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Subject[PATCH AUTOSEL for 3.18 37/40] scsi: lpfc: Fix secure firmware updates
Date
From: Dick Kennedy <dick.kennedy@broadcom.com>

[ Upstream commit 184fc2b9a8bcbda9c14d0a1e7fbecfc028c7702e ]

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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
---
drivers/scsi/lpfc/lpfc_hw4.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index f432ec180cf8..37b14a1278be 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -2951,7 +2951,7 @@ 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 {
--
2.11.0
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