diff options
| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2011-08-26 07:46:03 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2011-10-07 22:49:19 -0700 |
| commit | 3ceb90fd4898853cdac43084f0c6ee7270cb15f3 (patch) | |
| tree | 97526ddf3e00da217061063a30fba616e982d4b5 /drivers/net/ethernet/intel/igb/igb.h | |
| parent | 294e7d78f5b929536b81620ed33c6507f2921463 (diff) | |
igb: leave staterr in place and instead us a helper function to check bits
Instead of doing a byte swap on the staterr bits in the Rx descriptor we can
save ourselves a bit of space and some CPU time by instead just testing for
the various bits out of the Rx descriptor directly.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index fde381a9d23..11d17f14aee 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -259,6 +259,13 @@ enum e1000_ring_flags_t { #define IGB_TX_CTXTDESC(R, i) \ (&(((struct e1000_adv_tx_context_desc *)((R)->desc))[i])) +/* igb_test_staterr - tests bits within Rx descriptor status and error fields */ +static inline __le32 igb_test_staterr(union e1000_adv_rx_desc *rx_desc, + const u32 stat_err_bits) +{ + return rx_desc->wb.upper.status_error & cpu_to_le32(stat_err_bits); +} + /* igb_desc_unused - calculate if we have unused descriptors */ static inline int igb_desc_unused(struct igb_ring *ring) { |