All of
 help / color / mirror / Atom feed
From: Slava Ovsiienko <>
To: Alexander Kozyrev <>, "" <>
Cc: Raslan Darawsheh <>, Matan Azrad <>
Subject: Re: [dpdk-dev] [PATCH v2] net/mlx5: do not allow copy to mark via modify field
Date: Fri, 16 Jul 2021 10:47:55 +0000	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

> -----Original Message-----
> From: Alexander Kozyrev <>
> Sent: Friday, July 16, 2021 11:43
> To:
> Cc: Raslan Darawsheh <>; Matan Azrad
> <>; Slava Ovsiienko <>
> Subject: [PATCH v2] net/mlx5: do not allow copy to mark via modify field
> The Mark action is a two-stage process in the Mellanox driver.
> First, a hardware register is filled with the required value, then this value is
> registered in the software resource table.
> The MODIFY_FIELD action can instruct a Mellanox NIC to copy some value
> from an arbitrary packet header field into the hardware register, associated
> with the Mark item. But there is no way NIC can modify the software
> resource table as well.
> Due to these driver limitations the copying of arbitrary value to the MARK can
> not be supported and should be rejected in the MODIFY_FIELD action.
Thank you, Alexander

> Signed-off-by: Alexander Kozyrev <>
Acked-by: Viacheslav Ovsiienko <>

  reply	other threads:[~2021-07-16 10:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-16 18:34 [dpdk-dev] [PATCH] " Alexander Kozyrev
2021-07-14  6:30 ` Slava Ovsiienko
2021-07-16  8:43 ` [dpdk-dev] [PATCH v2] " Alexander Kozyrev
2021-07-16 10:47   ` Slava Ovsiienko [this message]
2021-07-22 14:28     ` Thomas Monjalon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \ \ \ \ \ \ \
    --subject='Re: [dpdk-dev] [PATCH v2] net/mlx5: do not allow copy to mark via modify field' \

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.