netdev - [PATCH bpf 0/4] xsk: another round of fixes

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Date:   Mon, 28 Mar 2022 16:21:19 +0200
From:   Maciej Fijalkowski <maciej.fijalkowski@...el.com>
To:     bpf@...r.kernel.org, ast@...nel.org, daniel@...earbox.net
Cc:     netdev@...r.kernel.org, magnus.karlsson@...el.com,
        alexandr.lobakin@...el.com, bjorn@...nel.org,
        Maciej Fijalkowski <maciej.fijalkowski@...el.com>
Subject: [PATCH bpf 0/4] xsk: another round of fixes

Hello,

yet another fixes for XSK from Magnus and me.

Magnus addresses the fact that xp_alloc() can return NULL, so this needs
to be handled to avoid clearing entries in the SW ring on driver side.
Then he addresses the off-by-one problem in Tx desc cleaning routine for
ice ZC driver.

>From my side, I am adding protection to ZC Rx processing loop so that
cleaning of descriptors wouldn't go over already processed entries.
Then I also fix an issue with assigning XSK pool to Tx queues.

This is directed to bpf tree.

Thanks!

Maciej Fijalkowski (2):
  ice: xsk: stop Rx processing when ntc catches ntu
  ice: xsk: fix indexing in ice_tx_xsk_pool()

Magnus Karlsson (2):
  xsk: do not write NULL in SW ring at allocation failure
  ice: xsk: eliminate unnecessary loop iteration

 drivers/net/ethernet/intel/ice/ice.h     | 2 +-
 drivers/net/ethernet/intel/ice/ice_xsk.c | 5 ++++-
 net/xdp/xsk_buff_pool.c                  | 8 ++++++--
 3 files changed, 11 insertions(+), 4 deletions(-)

-- 
2.27.0