diff options
| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2023-04-18 15:30:47 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2023-04-27 18:42:19 +0200 |
| commit | 73b7123de0cfa4f6609677e927ab02cb05b593c2 (patch) | |
| tree | 3040d6862d6cf76bb9837869093fbcc894b4e5b8 /drivers/net/ethernet/intel/igc/igc.h | |
| parent | 84214ab4689f962b4bfc47fc9a5838d25ac4274d (diff) | |
igc: Add igc_xdp_buff wrapper for xdp_buff in driver
Driver specific metadata data for XDP-hints kfuncs are propagated via tail
extending the struct xdp_buff with a locally scoped driver struct.
Zero-Copy AF_XDP/XSK does similar tricks via struct xdp_buff_xsk. This
xdp_buff_xsk struct contains a CB area (24 bytes) that can be used for
extending the locally scoped driver into. The XSK_CHECK_PRIV_TYPE define
catch size violations build time.
The changes needed for AF_XDP zero-copy in igc_clean_rx_irq_zc()
is done in next patch, because the member rx_desc isn't available
at this point.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Yoong Siang <yoong.siang.song@intel.com>
Link: https://lore.kernel.org/bpf/168182464779.616355.3761989884165609387.stgit@firesoul
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc.h b/drivers/net/ethernet/intel/igc/igc.h index f7f9e217e7b4..76a5115aefc8 100644 --- a/drivers/net/ethernet/intel/igc/igc.h +++ b/drivers/net/ethernet/intel/igc/igc.h @@ -499,6 +499,11 @@ struct igc_rx_buffer { }; }; +/* context wrapper around xdp_buff to provide access to descriptor metadata */ +struct igc_xdp_buff { + struct xdp_buff xdp; +}; + struct igc_q_vector { struct igc_adapter *adapter; /* backlink */ void __iomem *itr_register; |