ice: xsk: Tx multi-buffer support

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Most of this patch is about actually supporting XDP_TX action. Pure Tx
ZC support is only about looking at XDP_PKT_CONTD presence at options
field and based on that generating EOP bit on Tx HW descriptor. This is
that simple due to the implementation on
xsk_tx_peek_release_desc_batch() where we are making sure that last
produced descriptor is an EOP one.

Overwrite xdp_zc_max_segs with a value that defines max scatter-gatter
count on Tx side that HW can handle.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20230719132421.584801-16-maciej.fijalkowski@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Maciej Fijalkowski 2023-07-19 15:24:12 +02:00 • committed by Alexei Starovoitov

parent d558196604

commit eeb2b53810

2 changed files with 61 additions and 23 deletions

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1

drivers/net/ethernet/intel/ice/ice_main.c

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83

drivers/net/ethernet/intel/ice/ice_xsk.c

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