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authorMichael Chan2016-01-08 01:56:57 +0100
committerDavid S. Miller2016-01-11 04:19:19 +0100
commitd79979a103f7820d3107cdc04096e87b37f90008 (patch)
tree2de84ff6a35011d7f3573a1f60f17e8a866c899c
parentnet, sched: add clsact qdisc (diff)
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bnxt_en: Zero pad firmware messages to 128 bytes.
For future compatibility, zero pad all messages that the driver sends to the firmware to 128 bytes. If these messages are extended in the future with new byte enables, zero padding these messages now will guarantee future compatibility. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index f9569493034b..287bfb79ea2d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -2614,6 +2614,9 @@ int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
/* Write request msg to hwrm channel */
__iowrite32_copy(bp->bar0, data, msg_len / 4);
+ for (i = msg_len; i < HWRM_MAX_REQ_LEN; i += 4)
+ writel(0, bp->bar0 + i);
+
/* currently supports only one outstanding message */
if (intr_process)
bp->hwrm_intr_seq_id = le32_to_cpu(req->target_id_seq_id) &