From: Thomas Monjalon <thomas.monjalon-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
To: Konstantin Ananyev
<konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: dev-VfR2kkLFssw@public.gmane.org
Subject: Re: [PATCH] fix for jumbo frame issue with DPDK VF
Date: Thu, 22 May 2014 17:33:24 +0200 [thread overview]
Message-ID: <5718347.PM9M73rWQt@xps13> (raw)
In-Reply-To: <1399373316-11369-1-git-send-email-konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Hi Konstantin,
2014-05-06 11:48, Konstantin Ananyev:
> When latest Linux ixgbe PF is used, and DPDK VF is used in DPDK application,
> jumbo frames are not received.
> Also - if Linux ixgbe PF has MTU set to 1500 (default),
> then normal sized packets can be received by DPDK VF.
> However, if Linux PF has MTU > 1500, then DPDK VF receives no packets
> (normal or jumbo).
> With ixgbe_mbox_api_10 ixgbe simply didn't allow set VF MTU > 1514 for
> 82599. With ixgbe_mbox_ajpi_11 it does, though now, if PF uses jumbo
> frames, it simply disables RX for all VFs.
> So to work with PF ithat using jumbo frames, at startup each VF has to:
> 1. negotiate with PF mbox_api_11.
> 2. Send to PF SET_LPE message with desired MTU.
> Note, that if PF already uses MTU bigger then asked by the VF,
> then PF wouldn't take any action.
You forgot "Signed-off-by:" line.
Please resend.
--
Thomas
next prev parent reply other threads:[~2014-05-22 15:33 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-06 10:48 [PATCH] fix for jumbo frame issue with DPDK VF Konstantin Ananyev
[not found] ` <1399373316-11369-1-git-send-email-konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-05-22 15:33 ` Thomas Monjalon [this message]
-- strict thread matches above, loose matches on Subject: below --
2014-05-06 14:31 Konstantin Ananyev
[not found] ` <1399386672-10480-1-git-send-email-konstantin.ananyev-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2014-05-07 13:09 ` Ivan Boule
[not found] ` <536A307C.7050304-pdR9zngts4EAvxtiuMwx3w@public.gmane.org>
2014-05-27 14:53 ` Thomas Monjalon
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