ixgbe: Use length to determine if descriptor is done

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This change makes it so that we use the length of the packet instead of the
DD status bit to determine if a new descriptor is ready to be processed.
The obvious advantage is that it cuts down on reads as we don't really even
need the DD bit if going from a 0 to a non-zero value on size is enough to
inform us that the packet has been completed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Alexander Duyck 2017-01-17 08:36:28 -08:00 • committed by Jeff Kirsher

parent 4f4542bfb3

commit c3630cc40b

2 changed files with 9 additions and 7 deletions

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2

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

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14

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

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