| commit | cd7eab44e9946c28d595abe3e9a43e945bc49141 | |
| author | Ben Hutchings <bhutchings@solarflare.com> | |
| Wed, 19 Jan 2011 21:01:44 +0000 (19 21:01 +0000) | ||
| committer | Thomas Gleixner <tglx@linutronix.de> | |
| Sat, 22 Jan 2011 16:34:25 +0000 (22 17:34 +0100) | ||
| tree | b8b0c1beebbcad7785422a463504a374bb43cdea | treesnapshot (tar.gz zip) |
| parent | 1bae4ce27c9c90344f23c65ea6966c50ffeae2f5 | commitdiff |
genirq: Add IRQ affinity notifiers
When initiating I/O on a multiqueue and multi-IRQ device, we may want
to select a queue for which the response will be handled on the same
or a nearby CPU. This requires a reverse-map of IRQ affinity. Add a
notification mechanism to support this.
This is based closely on work by Thomas Gleixner <tglx@linutronix.de>.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: linux-net-drivers@solarflare.com
Cc: Tom Herbert <therbert@google.com>
Cc: David Miller <davem@davemloft.net>
LKML-Reference: <1295470904.11126.84.camel@bwh-desktop>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
When initiating I/O on a multiqueue and multi-IRQ device, we may want
to select a queue for which the response will be handled on the same
or a nearby CPU. This requires a reverse-map of IRQ affinity. Add a
notification mechanism to support this.
This is based closely on work by Thomas Gleixner <tglx@linutronix.de>.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: linux-net-drivers@solarflare.com
Cc: Tom Herbert <therbert@google.com>
Cc: David Miller <davem@davemloft.net>
LKML-Reference: <1295470904.11126.84.camel@bwh-desktop>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| include/linux/interrupt.h | diffblobblamehistory | |
| include/linux/irqdesc.h | diffblobblamehistory | |
| kernel/irq/manage.c | diffblobblamehistory |