linux-kernel - RE: [Intel-wired-lan] [PATCH iwl-net 3/3] ice: map XDP queues to vectors in ice_vsi_map_rings_to

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Date: Thu, 30 May 2024 05:57:16 +0000
From: "Rout, ChandanX" <chandanx.rout@...el.com>
To: "Zaremba, Larysa" <larysa.zaremba@...el.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"Keller, Jacob E" <jacob.e.keller@...el.com>
CC: "Fijalkowski, Maciej" <maciej.fijalkowski@...el.com>, "Jesper Dangaard
 Brouer" <hawk@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, "Kitszel,
 Przemyslaw" <przemyslaw.kitszel@...el.com>, John Fastabend
	<john.fastabend@...il.com>, Alexei Starovoitov <ast@...nel.org>, "David S.
 Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>, Jakub Kicinski
	<kuba@...nel.org>, "bpf@...r.kernel.org" <bpf@...r.kernel.org>, Paolo Abeni
	<pabeni@...hat.com>, Magnus Karlsson <magnus.karlsson@...il.com>, "Bagnucki,
 Igor" <igor.bagnucki@...el.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "Kuruvinakunnel, George"
	<george.kuruvinakunnel@...el.com>, "Pandey, Atul" <atul.pandey@...el.com>,
	"Nagraj, Shravan" <shravan.nagraj@...el.com>
Subject: RE: [Intel-wired-lan] [PATCH iwl-net 3/3] ice: map XDP queues to
 vectors in ice_vsi_map_rings_to_vectors()



>-----Original Message-----
>From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of
>Zaremba, Larysa
>Sent: Wednesday, May 15, 2024 9:32 PM
>To: intel-wired-lan@...ts.osuosl.org; Keller, Jacob E <jacob.e.keller@...el.com>
>Cc: Fijalkowski, Maciej <maciej.fijalkowski@...el.com>; Jesper Dangaard Brouer
><hawk@...nel.org>; Daniel Borkmann <daniel@...earbox.net>; Zaremba,
>Larysa <larysa.zaremba@...el.com>; Kitszel, Przemyslaw
><przemyslaw.kitszel@...el.com>; John Fastabend
><john.fastabend@...il.com>; Alexei Starovoitov <ast@...nel.org>; David S.
>Miller <davem@...emloft.net>; Eric Dumazet <edumazet@...gle.com>;
>netdev@...r.kernel.org; Jakub Kicinski <kuba@...nel.org>;
>bpf@...r.kernel.org; Paolo Abeni <pabeni@...hat.com>; Magnus Karlsson
><magnus.karlsson@...il.com>; Bagnucki, Igor <igor.bagnucki@...el.com>;
>linux-kernel@...r.kernel.org
>Subject: [Intel-wired-lan] [PATCH iwl-net 3/3] ice: map XDP queues to vectors
>in ice_vsi_map_rings_to_vectors()
>
>ice_pf_dcb_recfg() re-maps queues to vectors with
>ice_vsi_map_rings_to_vectors(), which does not restore the previous state for
>XDP queues. This leads to no AF_XDP traffic after rebuild.
>
>Map XDP queues to vectors in ice_vsi_map_rings_to_vectors().
>Also, move the code around, so XDP queues are mapped independently only
>through .ndo_bpf().
>
>Fixes: 6624e780a577 ("ice: split ice_vsi_setup into smaller functions")
>Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
>Signed-off-by: Larysa Zaremba <larysa.zaremba@...el.com>
>---
> drivers/net/ethernet/intel/ice/ice.h      |  1 +
> drivers/net/ethernet/intel/ice/ice_base.c |  3 +
>drivers/net/ethernet/intel/ice/ice_lib.c  | 14 ++--
>drivers/net/ethernet/intel/ice/ice_main.c | 96 ++++++++++++++---------
> 4 files changed, 68 insertions(+), 46 deletions(-)
>

Tested-by: Chandan Kumar Rout <chandanx.rout@...el.com> (A Contingent Worker at Intel)