linux_dsm_epyc7002/drivers/net/ethernet/intel
Alexander Duyck 7cc6fd4c60 igb: Don't bother clearing Tx buffer_info in igb_clean_tx_ring
In the case of the Tx rings we need to only clear the Tx buffer_info when
we are resetting the rings.  Ideally we do this when we configure the ring
to bring it back up instead of when we are taking it down in order to avoid
dirtying pages we don't need to.

In addition we don't need to clear the Tx descriptor ring since we will
fully repopulate it when we begin transmitting frames and next_to_watch can
be cleared to prevent the ring from being cleaned beyond that point instead
of needing to touch anything in the Tx descriptor ring.

Finally with these changes we can avoid having to reset the skb member of
the Tx buffer_info structure in the cleanup path since the skb will always
be associated with the first buffer which has next_to_watch set.

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>
2017-03-17 12:11:44 -07:00
..
e1000 e1000: use disable_hardirq() for e1000_netpoll() 2016-12-10 23:31:19 -05:00
e1000e net: Remove usage of net_device last_rx member 2017-01-18 17:22:49 -05:00
fm10k mqprio: Modify mqprio to pass user parameters via ndo_setup_tc. 2017-03-15 15:20:27 -07:00
i40e mqprio: Modify mqprio to pass user parameters via ndo_setup_tc. 2017-03-15 15:20:27 -07:00
i40evf i40e/i40evf: Change version from 1.6.27 to 2.1.7 2017-03-15 02:01:27 -07:00
igb igb: Don't bother clearing Tx buffer_info in igb_clean_tx_ring 2017-03-17 12:11:44 -07:00
igbvf Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2016-12-03 12:29:53 -05:00
ixgb drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
ixgbe mqprio: Modify mqprio to pass user parameters via ndo_setup_tc. 2017-03-15 15:20:27 -07:00
ixgbevf ixgbevf: get rid of custom busy polling code 2017-02-03 17:17:53 -05:00
e100.c drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
Kconfig ptp_clock: Allow for it to be optional 2016-11-16 09:26:34 +01:00
Makefile fm10k: Add skeletal frame for Intel(R) FM10000 Ethernet Switch Host Interface Driver 2014-09-23 03:59:13 -07:00