> -----Original Message----- > From: Intel-wired-lan <intel-wired-lan-bounces@xxxxxxxxxx> On Behalf Of > Alexander Lobakin > Sent: Tuesday, August 26, 2025 9:25 PM > To: intel-wired-lan@xxxxxxxxxxxxxxxx > Cc: Lobakin, Aleksander <aleksander.lobakin@xxxxxxxxx>; Kubiak, Michal > <michal.kubiak@xxxxxxxxx>; Fijalkowski, Maciej > <maciej.fijalkowski@xxxxxxxxx>; Nguyen, Anthony L > <anthony.l.nguyen@xxxxxxxxx>; Kitszel, Przemyslaw > <przemyslaw.kitszel@xxxxxxxxx>; Andrew Lunn <andrew+netdev@xxxxxxx>; > David S. Miller <davem@xxxxxxxxxxxxx>; Eric Dumazet > <edumazet@xxxxxxxxxx>; Jakub Kicinski <kuba@xxxxxxxxxx>; Paolo Abeni > <pabeni@xxxxxxxxxx>; Alexei Starovoitov <ast@xxxxxxxxxx>; Daniel > Borkmann <daniel@xxxxxxxxxxxxx>; Simon Horman <horms@xxxxxxxxxx>; > NXNE CNSE OSDT ITP Upstreaming > <nxne.cnse.osdt.itp.upstreaming@xxxxxxxxx>; bpf@xxxxxxxxxxxxxxx; > netdev@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Subject: [Intel-wired-lan] [PATCH iwl-next v5 07/13] idpf: add support for > nointerrupt queues > > Currently, queues are associated 1:1 with interrupt vectors as it's assumed > queues are always interrupt-driven. For XDP, we want to use Tx queues > without interrupts and only do "lazy" cleaning when the number of free > elements is <= threshold (closest pow-2 to 1/4 of the ring). > In order to use a queue without an interrupt, idpf still needs to have a vector > assigned to it to flush descriptors. This vector can be global and only one for > the whole vport to handle all its noirq queues. > Always request one excessive vector and configure it in non-interrupt mode > right away when creating vport, so that it can be used later by queues when > needed (not only XDP ones). > > Co-developed-by: Michal Kubiak <michal.kubiak@xxxxxxxxx> > Signed-off-by: Michal Kubiak <michal.kubiak@xxxxxxxxx> > Signed-off-by: Alexander Lobakin <aleksander.lobakin@xxxxxxxxx> > --- > drivers/net/ethernet/intel/idpf/idpf.h | 8 +++ > drivers/net/ethernet/intel/idpf/idpf_txrx.h | 4 ++ > drivers/net/ethernet/intel/idpf/idpf_dev.c | 11 +++- > drivers/net/ethernet/intel/idpf/idpf_lib.c | 2 +- > drivers/net/ethernet/intel/idpf/idpf_txrx.c | 8 +++ > drivers/net/ethernet/intel/idpf/idpf_vf_dev.c | 11 +++- > .../net/ethernet/intel/idpf/idpf_virtchnl.c | 54 ++++++++++++++----- > 7 files changed, 81 insertions(+), 17 deletions(-) > Tested-by: R,Ramu <ramu.r@xxxxxxxxx>
