Alvin Zhang 39e4a2577f net/i40e: fix Rx packet statistics
Some packets are discarded by the NIC because they are larger than
the MTU, these packets should be counted as "RX error" instead of
"RX packet", for example:

  pkt1 = Ether()/IP()/Raw('x' * 1400)
  pkt2 = Ether()/IP()/Raw('x' * 1500)

  ---------------- Forward statistics for port 0 -----------------
  RX-packets: 2 RX-dropped: 0 RX-total: 2
  TX-packets: 1 TX-dropped: 0 TX-total: 1
  ----------------------------------------------------------------

  Here the packet pkt2 has been discarded, but still was counted
  by "RX-packets"

The register 'GL_RXERR1' can count above discarded packets.
This patch adds reading and calculation of the 'GL_RXERR1' counter
when reporting DPDK statistics.

Fixes: f4a91c38b4ad ("i40e: add extended stats")
Cc: stable@dpdk.org

Signed-off-by: Alvin Zhang <alvinx.zhang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
2021-10-08 08:18:31 +02:00
2021-08-17 08:37:52 +02:00
2021-09-21 06:26:00 +02:00
2016-11-13 15:25:12 +01:00
2021-05-18 19:06:56 +02:00
2021-08-17 08:37:52 +02:00
2021-08-17 08:37:52 +02:00
2020-09-07 23:51:57 +02:00
2018-01-04 22:41:38 +01:00
2021-08-17 08:37:52 +02:00

DPDK is a set of libraries and drivers for fast packet processing.
It supports many processor architectures and both FreeBSD and Linux.

The DPDK uses the Open Source BSD-3-Clause license for the core libraries
and drivers. The kernel components are GPL-2.0 licensed.

Please check the doc directory for release notes,
API documentation, and sample application information.

For questions and usage discussions, subscribe to: users@dpdk.org
Report bugs and issues to the development mailing list: dev@dpdk.org
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