diff options
| -rw-r--r-- | drivers/infiniband/hw/hfi1/chip.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index f87d80567572..37d8af50cc13 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -8488,7 +8488,10 @@ static int do_8051_command( */ if (type == HCMD_WRITE_LCB_CSR) { in_data |= ((*out_data) & 0xffffffffffull) << 8; - reg = ((((*out_data) >> 40) & 0xff) << + /* must preserve COMPLETED - it is tied to hardware */ + reg = read_csr(dd, DC_DC8051_CFG_EXT_DEV_0); + reg &= DC_DC8051_CFG_EXT_DEV_0_COMPLETED_SMASK; + reg |= ((((*out_data) >> 40) & 0xff) << DC_DC8051_CFG_EXT_DEV_0_RETURN_CODE_SHIFT) | ((((*out_data) >> 48) & 0xffff) << DC_DC8051_CFG_EXT_DEV_0_RSP_DATA_SHIFT); |