This is a note to let you know that I've just added the patch titled
bnxt_en: Reset device on RX buffer errors.
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bnxt_en-reset-device-on-rx-buffer-errors.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Apr 15 07:47:06 CEST 2019
From: Michael Chan <michael.chan@xxxxxxxxxxxx>
Date: Mon, 8 Apr 2019 17:39:55 -0400
Subject: bnxt_en: Reset device on RX buffer errors.
From: Michael Chan <michael.chan@xxxxxxxxxxxx>
[ Upstream commit 8e44e96c6c8e8fb80b84a2ca11798a8554f710f2 ]
If the RX completion indicates RX buffers errors, the RX ring will be
disabled by firmware and no packets will be received on that ring from
that point on. Recover by resetting the device.
Fixes: c0c050c58d84 ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Michael Chan <michael.chan@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1557,11 +1557,17 @@ static int bnxt_rx_pkt(struct bnxt *bp,
rx_buf->data = NULL;
if (rxcmp1->rx_cmp_cfa_code_errors_v2 & RX_CMP_L2_ERRORS) {
+ u32 rx_err = le32_to_cpu(rxcmp1->rx_cmp_cfa_code_errors_v2);
+
bnxt_reuse_rx_data(rxr, cons, data);
if (agg_bufs)
bnxt_reuse_rx_agg_bufs(bnapi, cp_cons, agg_bufs);
rc = -EIO;
+ if (rx_err & RX_CMPL_ERRORS_BUFFER_ERROR_MASK) {
+ netdev_warn(bp->dev, "RX buffer error %x\n", rx_err);
+ bnxt_sched_reset(bp, rxr);
+ }
goto next_rx;
}
Patches currently in stable-queue which might be from michael.chan@xxxxxxxxxxxx are
queue-4.14/bnxt_en-improve-rx-consumer-index-validity-check.patch
queue-4.14/bnxt_en-reset-device-on-rx-buffer-errors.patch
