sky2: lock less transmit completion

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Transmit completion can safely run lockless against transmit start.
In the normal case, completion is done from NAPI and only looks
at elements that are at the tail of the ring.  When doing shutdown
or reset, the transmiter should be completely block by NAPI disable
and blocking of transmit queue. 

Based on earlier work by Mike McCormack.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Stephen Hemminger 2009-08-14 15:33:19 -07:00 • committed by David S. Miller

parent af18d8b899

commit 481cea4a4d

1 changed files with 9 additions and 16 deletions

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drivers/net/sky2.c

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