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| author |   Jakub Kicinski <kuba@kernel.org> | 2022-02-23 20:33:15 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-02-23 20:33:16 -0800 |
| commit | e422eef268baa0d08f969d1330f13929a7efc138 (patch) | |
| tree | 41bb5f7ec26554b283eaad878dd2628b0b128bbc /include/uapi/linux | |
| parent | Revert "vlan: move dev_put into vlan_dev_uninit" (diff) | |
| parent | octeontx2-pf: Vary completion queue event size (diff) | |
Merge branch 'add-ethtool-support-for-completion-queue-event-size'
Subbaraya Sundeep says:
====================
Add ethtool support for completion queue event size
After a packet is sent or received by NIC then NIC posts
a completion queue event which consists of transmission status
(like send success or error) and received status(like
pointers to packet fragments). These completion events may
also use a ring similar to rx and tx rings. This patchset
introduces cqe-size ethtool parameter to modify the size
of the completion queue event if NIC hardware has that capability.
A bigger completion queue event can have more receive buffer pointers
inturn NIC can transfer a bigger frame from wire as long as
hardware(MAC) receive frame size limit is not exceeded.
Patch 1 adds support setting/getting cqe-size via
ethtool -G and ethtool -g.
Patch 2 includes octeontx2 driver changes to use
completion queue event size set from ethtool -G.
====================
Link: https://lore.kernel.org/r/1645555153-4932-1-git-send-email-sbhatta@marvell.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/ethtool_netlink.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h index 417d4280d7b5..979850221b8d 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -337,6 +337,7 @@ enum { ETHTOOL_A_RINGS_TX, /* u32 */ ETHTOOL_A_RINGS_RX_BUF_LEN, /* u32 */ ETHTOOL_A_RINGS_TCP_DATA_SPLIT, /* u8 */ + ETHTOOL_A_RINGS_CQE_SIZE, /* u32 */ /* add new constants above here */ __ETHTOOL_A_RINGS_CNT, |