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linux/drivers/net/ethernet/intel/igc
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Jesper Dangaard Brouer 4fa8fcd344 igc: AF_XDP zero-copy metadata adjust breaks SKBs on XDP_PASS 
Driver already implicitly supports XDP metadata access in AF_XDP
zero-copy mode, as xsk_buff_pool's xp_alloc() naturally set xdp_buff
data_meta equal data.

This works fine for XDP and AF_XDP, but if a BPF-prog adjust via
bpf_xdp_adjust_meta() and choose to call XDP_PASS, then igc function
igc_construct_skb_zc() will construct an invalid SKB packet. The
function correctly include the xdp->data_meta area in the memcpy, but
forgot to pull header to take metasize into account.

Fixes: fc9df2a0b5 ("igc: Enable RX via AF_XDP zero-copy")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-11-30 08:19:25 -08:00
..
igc.h igc: Add support for CBS offloading 2021-08-27 09:31:09 -07:00
igc_base.c igc: Change Device Reset to Port Reset 2021-10-29 10:36:58 -07:00
igc_base.h igc: Enable TX via AF_XDP zero-copy 2021-05-20 10:21:42 -07:00
igc_defines.h igc: Change Device Reset to Port Reset 2021-10-29 10:36:58 -07:00
igc_diag.c
igc_diag.h
igc_dump.c igb/igc: use strongly typed pointer 2021-05-26 09:11:41 -07:00
igc_ethtool.c ethtool: extend ringparam setting/getting API with rx_buf_len 2021-11-22 12:31:49 +00:00
igc_hw.h igc: Add new device ID 2021-10-29 09:51:26 -07:00
igc_i225.c igc: Fix overwrites return value 2021-04-16 13:15:45 -07:00
igc_i225.h
igc_mac.c
igc_mac.h
igc_main.c igc: AF_XDP zero-copy metadata adjust breaks SKBs on XDP_PASS 2021-11-30 08:19:25 -08:00
igc_nvm.c
igc_nvm.h
igc_phy.c igc: Remove _I_PHY_ID checking 2021-07-20 16:11:36 -07:00
igc_phy.h igc: Expose the gPHY firmware version 2021-02-03 15:20:32 -08:00
igc_ptp.c net: intel: igc_ptp: fix build for UML 2021-10-14 19:18:40 -07:00
igc_regs.h igc: Add support for CBS offloading 2021-08-27 09:31:09 -07:00
igc_tsn.c igc: Add support for CBS offloading 2021-08-27 09:31:09 -07:00
igc_tsn.h igc: Simplify TSN flags handling 2021-08-27 09:31:08 -07:00
igc_xdp.c igc: Enable TX via AF_XDP zero-copy 2021-05-20 10:21:42 -07:00
igc_xdp.h igc: Enable RX via AF_XDP zero-copy 2021-05-20 10:21:42 -07:00
Makefile igc: Add initial XDP support 2021-03-29 09:09:53 -07:00