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bnxt_en: Reset device on RX buffer errors.

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[ Upstream commit 8e44e96c6c ]

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: c0c050c58d ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Chan
2019-04-08 17:39:55 -04:00
committed by Chris
parent 8d0d108547
commit af91134921
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@@ -1400,11 +1400,17 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_napi *bnapi, u32 *raw_cons,
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;
}