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| author | Dragos Tatulea <dtatulea@nvidia.com> | 2026-06-13 00:17:03 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-06-15 12:58:18 -0700 |
| commit | 5c4adb7fb46fac348197c5a15c676a066dd1f88e (patch) | |
| tree | 7c79ac6b8ec31bd44b37b75269a597afe83a9add /io_uring | |
| parent | 0399e685927a4d1bc310771735b0c8780ddf1cab (diff) | |
| download | linux-next-5c4adb7fb46fac348197c5a15c676a066dd1f88e.tar.gz linux-next-5c4adb7fb46fac348197c5a15c676a066dd1f88e.zip | |
netdev: expose io_uring rx_page_order order via netlink
This adds observability for the io_uring zcrx rx-buf-len configuration.
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Reviewed-by: Yael Chemla <ychemla@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Acked-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://patch.msgid.link/20260612211709.1456966-3-dtatulea@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'io_uring')
| -rw-r--r-- | io_uring/zcrx.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c index 19837e0b5e91..c7b167c2d4e4 100644 --- a/io_uring/zcrx.c +++ b/io_uring/zcrx.c @@ -1156,6 +1156,7 @@ static void io_pp_zc_destroy(struct page_pool *pp) static int io_pp_nl_fill(void *mp_priv, struct sk_buff *rsp, struct netdev_rx_queue *rxq) { + struct io_zcrx_ifq *ifq = mp_priv; struct nlattr *nest; int type; @@ -1163,6 +1164,13 @@ static int io_pp_nl_fill(void *mp_priv, struct sk_buff *rsp, nest = nla_nest_start(rsp, type); if (!nest) return -EMSGSIZE; + + if (nla_put_uint(rsp, NETDEV_A_IO_URING_PROVIDER_INFO_RX_BUF_LEN, + 1ULL << ifq->niov_shift)) { + nla_nest_cancel(rsp, nest); + return -EMSGSIZE; + } + nla_nest_end(rsp, nest); return 0; |