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[BNX2]: Fix bug in irq handler and add prefetch

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Fix bug in bnx2_interrupt() that caused an unnecessary register read.
The BNX2_PCICFG_MISC_STATUS should only be read when the status tag
has not changed.

Add prefetch of the status block in bnx2_msi() similar to tg3_msi().
The status block is not touched in bnx2_msi() and prefetching it will
speed up bnx2_poll() that will run on the same CPU that received the
MSI.

Update version.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan
2005-09-08 13:15:32 -07:00
committed by David S. Miller
parent 2e66fc4116
commit c921e4c4db
2 changed files with 5 additions and 3 deletions
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drivers/net/bnx2.h
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@@ -50,6 +50,7 @@
#endif
#include <linux/workqueue.h>
#include <linux/crc32.h>
#include <linux/prefetch.h>
/* Hardware data structures and register definitions automatically
* generated from RTL code. Do not modify.