From: Sivakumar Subramani Date: Sat, 15 Sep 2007 21:24:03 +0000 (-0700) Subject: S2io: code Optimization of isr function X-Git-Tag: v2.6.24-rc1~1454^2~490 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=596c5c97431eab8465739c169401ea611127b9ad;p=pandora-kernel.git S2io: code Optimization of isr function - Code Optimization of s2io_isr function. - Isr check using per device napi variable instead of driver global. - Reduced from 3 to 1 if condition before check for processing packet receive packets. - Implemented Jeff's comment to use synchronize_irq. Removed the isr_cnt variable as it became redundant. - One time de assert the interrupts by writing all F's to the general_int_mask register instead of de asserting by clearing the source of interrupts with multiple writes which causes loss of interrupts (race conditions). It is entirely possible that before the driver has a chance to mask the asserted alarm bit, another alarm/traffic interrupt bit gets asserted as well. In this case Herc will keep the INTA line asserted and the bridge will not send a new Assert_INTA message upstream. [ Resolved conflicts due to napi_struct changes... -DaveM ] Signed-off-by: Sivakumar Subramani Signed-off-by: Santosh Rastapur Signed-off-by: Ramkrishna Vepa Signed-off-by: Jeff Garzik Signed-off-by: David S. Miller --- Reading git-diff-tree failed