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| author | Jakub Kicinski <kuba@kernel.org> | 2023-12-13 18:22:10 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-12-13 18:22:10 -0800 |
| commit | 36d8afbb2b89cdd4af1051d0a9afebb5511099df (patch) | |
| tree | 892917a719668ce929927ebeac97eae07d39f242 /include/linux | |
| parent | 173b6d1cdf582e7438b3ab4ef2f40e6833579490 (diff) | |
| parent | 9b1aa3ef2328aeef35b388c4c22323eaa792c1aa (diff) | |
Merge branch 'idpf-add-get-set-for-ethtool-s-header-split-ringparam'
Alexander Lobakin says:
====================
idpf: add get/set for Ethtool's header split ringparam
Currently, the header split feature (putting headers in one smaller
buffer and then the data in a separate bigger one) is always enabled
in idpf when supported.
One may want to not have fragmented frames per each packet, for example,
to avoid XDP frags. To better optimize setups for particular workloads,
add ability to switch the header split state on and off via Ethtool's
ringparams, as well as to query the current status.
There's currently only GET in the Ethtool Netlink interface for now,
so add SET first. I suspect idpf is not the only one supporting this.
====================
Link: https://lore.kernel.org/r/20231212142752.935000-1-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/ethtool.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index deb683d3360f..67b30940234b 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -95,6 +95,7 @@ struct kernel_ethtool_ringparam { * @ETHTOOL_RING_USE_TX_PUSH: capture for setting tx_push * @ETHTOOL_RING_USE_RX_PUSH: capture for setting rx_push * @ETHTOOL_RING_USE_TX_PUSH_BUF_LEN: capture for setting tx_push_buf_len + * @ETHTOOL_RING_USE_TCP_DATA_SPLIT: capture for setting tcp_data_split */ enum ethtool_supported_ring_param { ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0), @@ -102,6 +103,7 @@ enum ethtool_supported_ring_param { ETHTOOL_RING_USE_TX_PUSH = BIT(2), ETHTOOL_RING_USE_RX_PUSH = BIT(3), ETHTOOL_RING_USE_TX_PUSH_BUF_LEN = BIT(4), + ETHTOOL_RING_USE_TCP_DATA_SPLIT = BIT(5), }; #define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit)) |