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Subject[PATCH net-next v5 03/10] kbuild: document RPS/XPS network Kconfig options
Date
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(-)
diff --git a/net/Kconfig b/net/Kconfig
index a073148..1422c34 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -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
--
1.7.3.1


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