netdev - [PATCH v2 intel-net 0/6] ice: xsk: Rx processing fixes

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Message-Id: <20211213153111.110877-1-maciej.fijalkowski@intel.com>
Date:   Mon, 13 Dec 2021 16:31:05 +0100
From:   Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To:     intel-wired-lan@...ts.osuosl.org
Cc:     netdev@...r.kernel.org, bpf@...r.kernel.org,
        anthony.l.nguyen@...el.com, kuba@...nel.org, davem@...emloft.net,
        magnus.karlsson@...el.com, elza.mathew@...el.com,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: [PATCH v2 intel-net 0/6] ice: xsk: Rx processing fixes

Hi there,
it seems that previous [0] Rx fix was not enough and there are still
issues with AF_XDP Rx ZC support in ice driver. Elza reported that for
multiple XSK sockets configured on a single netdev, some of them were
becoming dead after a while. We have spotted more things that needed to
be addressed this time. More of information can be found in particular
commit messages.

v2 has a diff around only patch 2:
- use array_size() in memsets (Alexandr)
- remove unnecessary ternary operator from ice_alloc_rx_buf{, _zc}()
  (Alexandr)
- respect RCT in ice_construct_skb_zc() (Alexandr)
- fix kdoc issue (Anthony)

It also carries Alexandr's patch that was sent previously which was
overlapping with this set.

Thanks,
Maciej

[0]: https://lore.kernel.org/bpf/20211129231746.2767739-1-anthony.l.nguyen@intel.com/

Alexander Lobakin (1):
  ice: remove dead store on XSK hotpath

Maciej Fijalkowski (5):
  ice: xsk: return xsk buffers back to pool when cleaning the ring
  ice: xsk: allocate separate memory for XDP SW ring
  ice: xsk: do not clear status_error0 for ntu + nb_buffs descriptor
  ice: xsk: allow empty Rx descriptors on XSK ZC data path
  ice: xsk: fix cleaned_count setting

 drivers/net/ethernet/intel/ice/ice_base.c | 17 ++++++
 drivers/net/ethernet/intel/ice/ice_txrx.c | 19 ++++---
 drivers/net/ethernet/intel/ice/ice_txrx.h |  1 -
 drivers/net/ethernet/intel/ice/ice_xsk.c  | 66 +++++++++++------------
 4 files changed, 62 insertions(+), 41 deletions(-)

-- 
2.33.1