diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2011-01-19 12:03:53 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-24 23:53:01 +0100 |
| commit | c445477d74ab3779d1386ab797fbb9b628eb9f64 (patch) | |
| tree | 3ee70b7748c6c63a688f367e5ffd83fde21b87e3 /net/Kconfig | |
| parent | lib: cpu_rmap: CPU affinity reverse-mapping (diff) | |
| download | linux-c445477d74ab3779d1386ab797fbb9b628eb9f64.tar.xz linux-c445477d74ab3779d1386ab797fbb9b628eb9f64.zip | |
net: RPS: Enable hardware acceleration of RFS
Allow drivers for multiqueue hardware with flow filter tables to
accelerate RFS. The driver must:
1. Set net_device::rx_cpu_rmap to a cpu_rmap of the RX completion
IRQs (in queue order). This will provide a mapping from CPUs to the
queues for which completions are handled nearest to them.
2. Implement net_device_ops::ndo_rx_flow_steer. This operation adds
or replaces a filter steering the given flow to the given RX queue, if
possible.
3. Periodically remove filters for which rps_may_expire_flow() returns
true.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/Kconfig')
| -rw-r--r-- | net/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/Kconfig b/net/Kconfig index 72840626284b..79cabf1ee68b 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -221,6 +221,12 @@ config RPS depends on SMP && SYSFS && USE_GENERIC_SMP_HELPERS default y +config RFS_ACCEL + boolean + depends on RPS && GENERIC_HARDIRQS + select CPU_RMAP + default y + config XPS boolean depends on SMP && SYSFS && USE_GENERIC_SMP_HELPERS |