net: e1000: support txtd update delay via xmit_more
authorFlorian Westphal <fw@strlen.de>
Wed, 7 Jan 2015 11:40:33 +0000 (11:40 +0000)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Fri, 23 Jan 2015 02:10:23 +0000 (18:10 -0800)
commit8a4d0b93c142a53c369998303d2114b5beeca7af
tree6dae43d0e6160a59ce0419be3f844bfcfad43eb1
parent6ddbc4cf1f4d5a3a58b4223c80881f299dae3774
net: e1000: support txtd update delay via xmit_more

Don't update Tx tail descriptor if we queue hasn't been stopped and
we know at least one more skb will be sent right away.

Signed-off-by: Florian Westphal <fw@strlen.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/e1000/e1000_main.c