linux-stable/net/xdp
Maciej Fijalkowski d558196604 xsk: support ZC Tx multi-buffer in batch API
Modify xskq_cons_read_desc_batch() in a way that each processed
descriptor will be checked if it is an EOP one or not and act
accordingly to that.

Change the behavior of mentioned function to break the processing when
stumbling upon invalid descriptor instead of skipping it. Furthermore,
let us give only full packets down to ZC driver.
With these two assumptions ZC drivers will not have to take care of an
intermediate state of incomplete frames, which will simplify its
implementations a lot.

Last but not least, stop processing when count of frags would exceed
max supported segments on underlying device.

Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20230719132421.584801-15-maciej.fijalkowski@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2023-07-19 09:56:50 -07:00
..
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile xsk: Introduce AF_XDP buffer allocation API 2020-05-21 17:31:26 -07:00
xdp_umem.c mm/gup: remove vmas parameter from pin_user_pages() 2023-06-09 16:25:26 -07:00
xdp_umem.h xsk: Fix umem cleanup bug at socket destruct 2020-11-20 15:52:39 +01:00
xsk.c xsk: support mbuf on ZC RX 2023-07-19 09:56:49 -07:00
xsk.h xdp: Add proper __rcu annotations to redirect map entries 2021-06-24 19:41:15 +02:00
xsk_buff_pool.c xsk: support mbuf on ZC RX 2023-07-19 09:56:49 -07:00
xsk_diag.c xsk: Fix possible segfault in xsk umem diagnostics 2020-09-02 16:49:40 +02:00
xsk_queue.c xsk: support use vaddr as ring 2023-02-20 08:22:12 +00:00
xsk_queue.h xsk: support ZC Tx multi-buffer in batch API 2023-07-19 09:56:50 -07:00
xskmap.c bpf: Centralize permissions checks for all BPF map types 2023-06-19 14:04:04 +02:00