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| author | MD Danish Anwar <danishanwar@ti.com> | 2024-04-30 17:36:34 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-05-01 18:38:47 -0700 |
| commit | dcb3fba6fa34dd2f98bfcd1d20b26fab3842d1ee (patch) | |
| tree | 4d1425f7b6dcd1d308d7fb9d1f694e2f37fb0322 /init | |
| parent | 5165c48ef1afbb3e0126b36be84ffaa6f05cb6f0 (diff) | |
net: ti: icssg_prueth: Add SW TX / RX Coalescing based on hrtimers
Add SW IRQ coalescing based on hrtimers for RX and TX data path for ICSSG
driver, which can be enabled by ethtool commands:
- RX coalescing
ethtool -C eth1 rx-usecs 50
- TX coalescing can be enabled per TX queue
- by default enables coalescing for TX0
ethtool -C eth1 tx-usecs 50
- configure TX0
ethtool -Q eth0 queue_mask 1 --coalesce tx-usecs 100
- configure TX1
ethtool -Q eth0 queue_mask 2 --coalesce tx-usecs 100
- configure TX0 and TX1
ethtool -Q eth0 queue_mask 3 --coalesce tx-usecs 100 --coalesce
tx-usecs 100
Minimum value for both rx-usecs and tx-usecs is 20us.
Compared to gro_flush_timeout and napi_defer_hard_irqs this patch allows
to enable IRQ coalescing for RX path separately.
Benchmarking numbers:
===============================================================
| Method | Tput_TX | CPU_TX | Tput_RX | CPU_RX |
| ==============================================================
| Default Driver 943 Mbps 31% 517 Mbps 38% |
| IRQ Coalescing (Patch) 943 Mbps 28% 518 Mbps 25% |
===============================================================
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240430120634.1558998-1-danishanwar@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions