diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2010-11-16 19:26:49 -0800 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2010-11-16 19:26:49 -0800 |
| commit | 84ea2591e4a24775c2735511a1cc3cf88edd249d (patch) | |
| tree | f2189b6c1a5437639291eab40a34034e6f7f6c8f /drivers/net/ixgbe/ixgbe.h | |
| parent | d5f398ed73522b9f76861af6553775c5851de0d0 (diff) | |
ixgbe: drop ring->head, make ring->tail a pointer instead of offset
This change drops ring->head since it is not used in any hot-path and can
easily be determined using IXGBE_[RT]DH(ring->reg_idx).
It also changes ring->tail into a true pointer so we can avoid unnecessary
pointer math to find the location of the tail.
In addition I also dropped the setting of head and tail in
ixgbe_clean_[rx|tx]_ring. The only location that should be setting the head
and tail values is ixgbe_configure_[rx|tx]_ring and that is only while the
queue is disabled.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe.h')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe.h b/drivers/net/ixgbe/ixgbe.h index 149cf26b2545..c993fc3ab8a5 100644 --- a/drivers/net/ixgbe/ixgbe.h +++ b/drivers/net/ixgbe/ixgbe.h @@ -163,8 +163,7 @@ struct ixgbe_ring { #define IXGBE_RING_RX_PS_ENABLED (u8)(1) u8 flags; /* per ring feature flags */ - u16 head; - u16 tail; + u8 __iomem *tail; unsigned int total_bytes; unsigned int total_packets; |