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| author |   Xin Long <lucien.xin@gmail.com> | 2022-05-18 12:09:15 -0400 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2022-05-19 17:46:23 -0700 |
| commit | 582a2dbc72ac5dd2b3ae4f75bccd4b4c73bb0e1f (patch) | |
| tree | eaccdf1b5037d0a786d195234a2353f716a36c05 /Documentation/admin-guide | |
| parent | net: macb: Fix PTP one step sync support (diff) | |
| download | linux-dev-582a2dbc72ac5dd2b3ae4f75bccd4b4c73bb0e1f.tar.xz linux-dev-582a2dbc72ac5dd2b3ae4f75bccd4b4c73bb0e1f.zip | |
Documentation: add description for net.core.gro_normal_batch
Describe it in admin-guide/sysctl/net.rst like other Network core options.
Users need to know gro_normal_batch for performance tuning.
Fixes: 323ebb61e32b ("net: use listified RX for handling GRO_NORMAL skbs")
Reported-by: Prijesh Patel <prpatel@redhat.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Edward Cree <ecree.xilinx@gmail.com>
Link: https://lore.kernel.org/r/acf8a2c03b91bcde11f67ff89b6050089c0712a3.1652888963.git.lucien.xin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation/admin-guide')
| -rw-r--r-- | Documentation/admin-guide/sysctl/net.rst | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/admin-guide/sysctl/net.rst b/Documentation/admin-guide/sysctl/net.rst index f86b5e1623c6..46b44fa82fa2 100644 --- a/Documentation/admin-guide/sysctl/net.rst +++ b/Documentation/admin-guide/sysctl/net.rst @@ -374,6 +374,15 @@ option is set to SOCK_TXREHASH_DEFAULT (i. e. not overridden by setsockopt). If set to 1 (default), hash rethink is performed on listening socket. If set to 0, hash rethink is not performed. +gro_normal_batch +---------------- + +Maximum number of the segments to batch up on output of GRO. When a packet +exits GRO, either as a coalesced superframe or as an original packet which +GRO has decided not to coalesce, it is placed on a per-NAPI list. This +list is then passed to the stack when the number of segments reaches the +gro_normal_batch limit. + 2. /proc/sys/net/unix - Parameters for Unix domain sockets ---------------------------------------------------------- |