net: Add functions netif_reset_xps_queue and netif_set_xps_queue

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This patch adds two functions, netif_reset_xps_queue and
netif_set_xps_queue.  The main idea behind these two functions is to
provide a mechanism through which drivers can update their defaults in
regards to XPS.

Currently no such mechanism exists and as a result we cannot use XPS for
things such as ATR which would require a basic configuration to start in
which the Tx queues are mapped to CPUs via a 1:1 mapping.  With this change
I am making it possible for drivers such as ixgbe to be able to use the XPS
feature by controlling the default configuration.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Alexander Duyck 2013-01-10 08:57:02 +00:00 • committed by David S. Miller

parent 416186fbf8

commit 537c00de1c

3 changed files with 173 additions and 143 deletions

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13

include/linux/netdevice.h

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155

net/core/dev.c

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148

net/core/net-sysfs.c

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