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From: Ido Goshen <Ido@cgstowernetworks.com>
To: "users@dpdk.org" <users@dpdk.org>
Subject: [dpdk-users] Is it possible to receive packets with bad CRC?
Date: Sun, 13 Dec 2020 16:55:43 +0000
Message-ID: <DB7PR09MB23453F55767C3065C8979746D6C80@DB7PR09MB2345.eurprd09.prod.outlook.com> (raw)


By default bad CRC packets are dropped and raise the ierror counter.

Is there a way to change this behavior for I350 (igb) and rx it by the app?

I’ve tried setting DEV_RX_OFFLOAD_KEEP_CRC but this doesn’t help (I think this only keeps CRC for good packets)
I’ve also tried enabling the Store Bad Packet (not sure what it does but it’s the closet I could find) by setting in e1000/igb_rxtx.c
rctl |= E1000_RCTL_SBP;  E1000_WRITE_REG(hw, E1000_RCTL, rctl);
Didn’t help either.

Is it possible to do with I350?
Or with any of the other intel NICs? X522 (ixgbe) or X710 (i40e)?


  *   Ido

             reply	other threads:[~2020-12-13 16:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-12-13 16:55 Ido Goshen [this message]
2021-06-08  3:44 ` JieSong
2021-06-08 15:23   ` Stephen Hemminger
2021-06-09  4:58     ` songj

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