[PATCH 1/2] qla2xxx: Initialized mailbox to prevent driver load failure

[Himanshu Madhani]

This patch fixes issue with Gen7 adapter in a blade enviornment,
where one of the port will not be detected by driver. Firmware
expectes mailbox 11 to be set or clear by driver for newer ISP.

Following message is seen in the log file

[   18.810892] qla2xxx [0000:d8:00.0]-1820:1: **** Failed=102 mb[0]=4005 
mb[1]=37 mb[2]=20 mb[3]=8
[   18.819596]  cmd=2 ****

Signed-off-by: Himanshu Madhani <hmadh...@marvell.com>
---
 drivers/scsi/qla2xxx/qla_mbx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 1cc6913f76c4..4a1f21c11758 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -702,6 +702,7 @@ qla2x00_execute_fw(scsi_qla_host_t *vha, uint32_t risc_addr)
                mcp->mb[2] = LSW(risc_addr);
                mcp->mb[3] = 0;
                mcp->mb[4] = 0;
+               mcp->mb[11] = 0;
                ha->flags.using_lr_setting = 0;
                if (IS_QLA25XX(ha) || IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
                    IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
@@ -746,7 +747,7 @@ qla2x00_execute_fw(scsi_qla_host_t *vha, uint32_t risc_addr)
                if (ha->flags.exchoffld_enabled)
                        mcp->mb[4] |= ENABLE_EXCHANGE_OFFLD;
 
-               mcp->out_mb |= MBX_4|MBX_3|MBX_2|MBX_1;
+               mcp->out_mb |= MBX_4 | MBX_3 | MBX_2 | MBX_1 | MBX_11;
                mcp->in_mb |= MBX_3 | MBX_2 | MBX_1;
        } else {
                mcp->mb[1] = LSW(risc_addr);
-- 
2.12.0