ixgbe: Do no clear Tx status bits since eop_desc provides enough info

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There isn't any need to clear the status bits in the descriptors due to the
fact that the eop_desc provides enough information for us to know
that we have cleaned to the last packet that the software has put on the
ring.  The status bits are cleared as a part of putting the frame on the
ring so as long as we do not read the descriptor bit prior to reading the
value eop_desc we should be able to guarantee that we will not clean beyond
the end of the current data stream.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Alexander Duyck 2012-02-08 07:49:23 +00:00 • committed by Jeff Kirsher

parent b37c0fbe3f

commit 7f83a9e629

1 changed files with 3 additions and 4 deletions

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drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

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