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| author |  Maciej Fijalkowski <maciej.fijalkowski@intel.com>
| 2023-07-19 15:24:07 +0200 |
|---|---|---|
| committer |  Alexei Starovoitov <ast@kernel.org>
| 2023-07-19 09:56:49 -0700 |
| commit | 13ce2daa259a3bfbc9a5aeeee8b9a87058703731 (patch) | |
| tree | ef12d37cd6fa2b51aa36f2368197a77c6872fe4a /Documentation/netlink | |
| parent | xsk: discard zero length descriptors in Tx path (diff) | |
| download | linux-13ce2daa259a3bfbc9a5aeeee8b9a87058703731.tar.gz linux-13ce2daa259a3bfbc9a5aeeee8b9a87058703731.tar.bz2 linux-13ce2daa259a3bfbc9a5aeeee8b9a87058703731.zip | |
xsk: add new netlink attribute dedicated for ZC max frags
Introduce new netlink attribute NETDEV_A_DEV_XDP_ZC_MAX_SEGS that will
carry maximum fragments that underlying ZC driver is able to handle on
TX side. It is going to be included in netlink response only when driver
supports ZC. Any value higher than 1 implies multi-buffer ZC support on
underlying device.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/r/20230719132421.584801-11-maciej.fijalkowski@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'Documentation/netlink')
| -rw-r--r-- | Documentation/netlink/specs/netdev.yaml | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml index b99e7ffef7a1..e41015310a6e 100644 --- a/Documentation/netlink/specs/netdev.yaml +++ b/Documentation/netlink/specs/netdev.yaml @@ -62,6 +62,12 @@ attribute-sets: type: u64 enum: xdp-act enum-as-flags: true + - + name: xdp_zc_max_segs + doc: max fragment count supported by ZC driver + type: u32 + checks: + min: 1 operations: list: |