Re: [PATCH 2/5] forcedeth: interrupt handling cleanup

[Yinghai Lu]

On 10/6/07, Jeff Garzik <jeff@xxxxxxxxxx> wrote:
>
> commit a606d2a111cdf948da5d69eb1de5526c5c2dafef
> Author: Jeff Garzik <jeff@xxxxxxxxxx>
> Date:   Fri Oct 5 22:56:05 2007 -0400
>
>     [netdrvr] forcedeth: interrupt handling cleanup
>
>     * nv_nic_irq_optimized() and nv_nic_irq_other() were complete duplicates
>       of nv_nic_irq(), with the exception of one function call.  Consolidate
>       all three into a single interrupt handler, deleting a lot of redundant
>       code.
>
>     * greatly simplify irq handler locking.
>
>       Prior to this change, the irq handler(s) would acquire and release
>       np->lock for each action (RX, TX, other events).
>
>       For the common case -- RX or TX work -- the lock is always acquired,
>       making all successive acquire/release combinations largely redundant.
>
>       Acquire the lock at the beginning of the irq handler, and release it at
>       the end of the irq handler.  This is simple, easy, and obvious.
>
>     * remove irq handler work loop.
>
>       All interesting events emanating from the irq handler either have
>       their own work loops, or they poke a timer into action.
>
>       Therefore, delete the pointless master interrupt handler work loop.
>
>     Signed-off-by: Jeff Garzik <jgarzik@xxxxxxxxxx>
>
>  drivers/net/forcedeth.c |  325 +++++++++++-------------------------------------
>  1 file changed, 77 insertions(+), 248 deletions(-)
>
any chance to create three verion irq handlers for ioapic, msi, msi-x...?

MACRO or inline function?

YH
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/