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From: Thomas Monjalon <thomas@monjalon.net>
To: Ferruh Yigit <ferruh.yigit@intel.com>,
	Xiaoyu Min <jackmin@mellanox.com>,
	Jingjing Wu <jingjing.wu@intel.com>,
	Beilei Xing <beilei.xing@intel.com>
Cc: dev@dpdk.org, Andrew Rybchenko <arybchenko@solarflare.com>,
	Ori Kam <orika@nvidia.com>, Dekel Peled <dekelp@nvidia.com>
Subject: Re: [dpdk-dev] [PATCH 4/5] net/iavf: fix protocol size for virtchnl copy
Date: Sun, 22 Nov 2020 15:15:22 +0100
Message-ID: <2457523.IGjbyyMuxV@thomas> (raw)
In-Reply-To: <MN2PR12MB33441EF29DD89174A29F7BC4C1FD0@MN2PR12MB3344.namprd12.prod.outlook.com>

22/11/2020 14:28, Jack Min:
> From: Ferruh Yigit <ferruh.yigit@intel.com>
> > On 11/16/2020 7:55 AM, Xiaoyu Min wrote:
> > > From: Xiaoyu Min <jackmin@nvidia.com>
> > >
> > > The rte_flow_item_vlan items are refined.
> > > The structs do not exactly represent the packet bits captured on the
> > > wire anymore so should only copy real header instead of the whole struct.
> > >
> > > Replace the rte_flow_item_* with the existing corresponding rte_*_hdr.
> > >
> > > Fixes: 09315fc83861 ("ethdev: add VLAN attributes to ethernet and VLAN
> > items")
> > >
> > > Signed-off-by: Xiaoyu Min <jackmin@nvidia.com>
> > > ---
> > >   drivers/net/iavf/iavf_fdir.c | 2 +-
> > >   1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/net/iavf/iavf_fdir.c b/drivers/net/iavf/iavf_fdir.c
> > > index d683a468c1..7054bde0b9 100644
> > > --- a/drivers/net/iavf/iavf_fdir.c
> > > +++ b/drivers/net/iavf/iavf_fdir.c
> > > @@ -541,7 +541,7 @@ iavf_fdir_parse_pattern(__rte_unused struct
> > iavf_adapter *ad,
> > >   				VIRTCHNL_ADD_PROTO_HDR_FIELD_BIT(hdr,
> > ETH, ETHERTYPE);
> > >
> > >   				rte_memcpy(hdr->buffer,
> > > -					eth_spec, sizeof(*eth_spec));
> > > +					eth_spec, sizeof(struct rte_ether_hdr));
> > 
> > This requires 'struct rte_flow_item_eth' should have 'struct rte_ether_hdr' as
> > first element, and I suspect this usage exists in a few more locations, but I
> > wonder if this assumption is real and documented in somewhere?
> > I am not just talking about 'struct rte_flow_item_eth', but for all
> > 'rte_flow_item_*'...
> > 
> I think this is not documented and this assumption is not real.
> I've created one ticket on Bugzilla (https://bugs.dpdk.org/show_bug.cgi?id=581) to track.

So it probably means this patch is not enough for iavf.
It would require iavf maintainers (Cc'ed) to follow up.
I will apply the rest of the series.



  reply	other threads:[~2020-11-22 14:15 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-16  7:55 [dpdk-dev] [PATCH 0/5] fix protocol size calculation Xiaoyu Min
2020-11-16  7:55 ` [dpdk-dev] [PATCH 1/5] net/mlx5: fix protocol size for raw encap judgement Xiaoyu Min
2020-11-17 13:25   ` Matan Azrad
2020-11-22 14:21     ` Thomas Monjalon
2020-11-22 15:32   ` Thomas Monjalon
2020-11-22 16:04     ` Matan Azrad
2020-11-23  7:54       ` Ori Kam
2020-11-23  8:12         ` Thomas Monjalon
2020-11-16  7:55 ` [dpdk-dev] [PATCH 2/5] app/flow-perf: fix protocol size for raw encap Xiaoyu Min
2020-11-16  7:55 ` [dpdk-dev] [PATCH 3/5] net/bnxt: fix protocol size for VXLAN encap copy Xiaoyu Min
2020-11-16 16:12   ` Ferruh Yigit
2020-11-18  0:34     ` Ajit Khaparde
2020-11-18  6:37       ` Andrew Rybchenko
2020-11-18 17:44         ` Ajit Khaparde
2020-11-16  7:55 ` [dpdk-dev] [PATCH 4/5] net/iavf: fix protocol size for virtchnl copy Xiaoyu Min
2020-11-16 16:23   ` Ferruh Yigit
2020-11-22 13:28     ` Jack Min
2020-11-22 14:15       ` Thomas Monjalon [this message]
2020-11-23 10:02         ` Ferruh Yigit
2020-11-23 10:49   ` Ferruh Yigit
2020-11-24 21:58     ` Thomas Monjalon
2020-11-27  1:17   ` Xing, Beilei
2020-11-16  7:55 ` [dpdk-dev] [PATCH 5/5] net/softnic: update headers size calculation Xiaoyu Min
2020-11-16 16:27   ` Ferruh Yigit
2020-11-16 19:09     ` Dekel Peled
2020-11-17 10:30       ` Ferruh Yigit
2020-11-17 12:41         ` Dekel Peled
2020-11-17 15:43           ` Singh, Jasvinder
2020-11-18  2:23   ` Zhou, JunX W
2020-11-22 16:11 ` [dpdk-dev] [PATCH 0/5] fix protocol " Thomas Monjalon

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