@@ -217,20 +217,30 @@ source "net/dns_resolver/Kconfig"
source "net/batman-adv/Kconfig"
config RPS
- boolean
+ boolean "Enable Receive Packet Steering"
depends on SMP && SYSFS && USE_GENERIC_SMP_HELPERS
default y
+ RPS distributes the load of received packet processing
+ across multiple CPUs. If unsure, say Y.
config RFS_ACCEL
- boolean
+ boolean "Enable Hardware Acceleration of RFS"
depends on RPS && GENERIC_HARDIRQS
select CPU_RMAP
default y
+ This is the hardware version of RPS. On multi-queue network
+ devices, this configures the hardware to distribute the
+ received packets across multiple CPUs. If unsure, say Y.
config XPS
- boolean
+ boolean "Enable Transmit Packet Steering"
depends on SMP && SYSFS && USE_GENERIC_SMP_HELPERS
default y
+ For multiqueue devices, XPS selects a transmit queue during
+ packet transmission based on configuration. This is done by
+ mapping the CPU transmitting the packet to a queue. XPS can
+ reduce transmit network latency on SMP systems. If unsure,
+ say Y.
config HAVE_BPF_JIT
bool
This adds a description of RPS/XPS options and allow them to be changed at make menuconfig time. Signed-off-by: David Decotigny <david.decotigny@google.com> --- net/Kconfig | 16 +++++++++++++--- 1 files changed, 13 insertions(+), 3 deletions(-)