From: Hyong Youb Kim <hyonkim@cisco.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>,
John Daley <johndale@cisco.com>, "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v3 03/10] net/enic: heed the requested max Rx packet size
Date: Sat, 10 Mar 2018 09:37:44 +0900 [thread overview]
Message-ID: <20180310003743.GA18664@HYONKIM-FTCPE.cisco.com> (raw)
In-Reply-To: <a0e1b56a-6476-580b-efcd-44741582e3fc@intel.com>
On Fri, Mar 09, 2018 at 03:57:46PM +0000, Ferruh Yigit wrote:
> On 3/9/2018 3:51 PM, Ananyev, Konstantin wrote:
[...]
> >> Is this work based on an application that uses max_rx_pkt_len and to make PMD
> >> compatible with that application? If so we can continue with patch, but if the
> >> patch is to implement DPDK properly I suggest postponing this until
> >> max_rx_pkt_len clarified.
> >>
> >> [1]
> >> https://dpdk.org/ml/archives/dev/2018-March/092178.html
> >
> > I think there are quite a lot apps these days that might rely on setting MTU via
> > rxmode.max_rx_pkt_len.
> > I think we need to support them till we (ever) deprecate rxmode.max_rx_pkt_len.
>
> Right. I was trying to save effort in case something changes related
> max_rx_pkt_len, but since it is not clear yet, will continue with this patch.
>
> > Konstantin
> >
testpmd has a command to change max_rx_pkt_len, a few DTS test cases
rely on this feature to see if packets of certain sizes get dropped,
and so on. We worked on this patch to support these cases.
I prefer using only MTU, to follow the convention of most (all?)
OSes. Though, this feature (max_rx_pkt_len) seems to come straight
from an Intel 82599 feature. In its datasheet, see "8.2.3.22.13 Max
Frame Size -- MAXFRS". Like to understand use cases for that, if
anyone can share.
-Hyong
next prev parent reply other threads:[~2018-03-10 0:37 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-24 19:17 [dpdk-dev] [PATCH] net/enic: remove 'extern' in .h file function declarations John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: allow the user to change RSS settings John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: heed the requested max Rx packet size John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: remove the VLAN filter handler John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: add Rx/Tx queue configuration getters John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: allocate stats DMA buffer upfront during probe John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: support Rx queue interrupts John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] doc: describe Rx bytes counter behavior for enic John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: use memcpy to avoid strict aliasing warnings John Daley
2018-02-24 19:17 ` [dpdk-dev] [PATCH] net/enic: support for meson John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 00/10] enic patchset John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 01/10] net/enic: remove 'extern' in .h file function declarations John Daley
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 00/10] enic PMD patchset John Daley
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 01/10] net/enic: remove 'extern' in .h file function declarations John Daley
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 02/10] net/enic: allow the user to change RSS settings John Daley
2018-03-09 14:35 ` Ferruh Yigit
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 03/10] net/enic: heed the requested max Rx packet size John Daley
2018-03-09 15:03 ` Ferruh Yigit
2018-03-09 15:51 ` Ananyev, Konstantin
2018-03-09 15:57 ` Ferruh Yigit
2018-03-10 0:37 ` Hyong Youb Kim [this message]
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 04/10] net/enic: remove the VLAN filter handler John Daley
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 05/10] net/enic: add Rx/Tx queue configuration getters John Daley
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 06/10] net/enic: allocate stats DMA buffer upfront during probe John Daley
2018-03-08 2:46 ` [dpdk-dev] [PATCH v3 07/10] net/enic: support Rx queue interrupts John Daley
2018-03-08 2:47 ` [dpdk-dev] [PATCH v3 08/10] doc: describe Rx bytes counter behavior for enic John Daley
2018-03-08 22:14 ` Stephen Hemminger
2018-03-09 0:52 ` Hyong Youb Kim
2018-03-09 1:48 ` Stephen Hemminger
2018-03-08 2:47 ` [dpdk-dev] [PATCH v3 09/10] net/enic: use memcpy to avoid strict aliasing warnings John Daley
2018-03-08 2:47 ` [dpdk-dev] [PATCH v3 10/10] net/enic: support for meson John Daley
2018-03-08 9:49 ` Bruce Richardson
2018-03-09 16:00 ` [dpdk-dev] [PATCH v3 00/10] enic PMD patchset Ferruh Yigit
2018-03-10 0:49 ` Hyong Youb Kim
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 02/10] net/enic: allow the user to change RSS settings John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 03/10] net/enic: heed the requested max Rx packet size John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 04/10] net/enic: remove the VLAN filter handler John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 05/10] net/enic: add Rx/Tx queue configuration getters John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 06/10] net/enic: allocate stats DMA buffer upfront during probe John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 07/10] net/enic: support Rx queue interrupts John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 08/10] doc: describe Rx bytes counter behavior for enic John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 09/10] net/enic: use memcpy to avoid strict aliasing warnings John Daley
2018-03-06 1:46 ` [dpdk-dev] [PATCH v2 10/10] net/enic: support for meson John Daley
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