linux-kernel - RX CRC errors on I219-V (6) 8086:15be

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Message-Id: <C4036C54-EEEB-47F3-9200-4DD1B22B4280@canonical.com>
Date:   Mon, 24 Jun 2019 17:09:37 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     jeffrey.t.kirsher@...el.com
Cc:     Anthony Wong <anthony.wong@...onical.com>,
        intel-wired-lan@...ts.osuosl.org,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: RX CRC errors on I219-V (6) 8086:15be

Hi Jeffrey,

We’ve encountered another issue, which causes multiple CRC errors and  
renders ethernet completely useless, here’s the network stats:

/sys/class/net/eno1/statistics$ grep . *
collisions:0
multicast:95
rx_bytes:1499851
rx_compressed:0
rx_crc_errors:1165
rx_dropped:0
rx_errors:2330
rx_fifo_errors:0
rx_frame_errors:0
rx_length_errors:0
rx_missed_errors:0
rx_nohandler:0
rx_over_errors:0
rx_packets:4789
tx_aborted_errors:0
tx_bytes:864312
tx_carrier_errors:0
tx_compressed:0
tx_dropped:0
tx_errors:0
tx_fifo_errors:0
tx_heartbeat_errors:0
tx_packets:7370
tx_window_errors:0

Same behavior can be observed on both mainline kernel and on your dev-queue  
branch.
OTOH, the same issue can’t be observed on out-of-tree e1000e.

Is there any plan to close the gap between upstream and out-of-tree version?

Kai-Heng