From 5df47bb622e1b7cb3e99c7df15a4e1676a6af2c1 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Mon, 8 Apr 2019 17:39:55 -0400 Subject: [PATCH] bnxt_en: Reset device on RX buffer errors. [ 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 Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 1e5498431618..446577a1a6a5 100644 --- 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, 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; } -- 2.20.1