aquantia: Fix Tx queue hangups

Browse source

Driver did a poor job in managing its Tx queues: Sometimes it could stop
tx queues due to link down condition in aq_nic_xmit - but never waked up
them. That led to Tx path total suspend.
This patch fixes this and improves generic queue management:
- introduces queue restart counter
- uses generic netif_ interface to disable and enable tx path
- refactors link up/down condition and introduces dmesg log event when
  link changes.
- introduces new constant for minimum descriptors count required for queue
  wakeup

Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Igor Russkikh 2017-09-25 10:48:48 +03:00 • committed by David S. Miller

parent d85fc17bee

commit 3aec6412e0

6 changed files with 76 additions and 59 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

4

drivers/net/ethernet/aquantia/atlantic/aq_cfg.h

View file

91

drivers/net/ethernet/aquantia/atlantic/aq_nic.c

View file

2

drivers/net/ethernet/aquantia/atlantic/aq_nic.h

View file

26

drivers/net/ethernet/aquantia/atlantic/aq_ring.c

View file

4

drivers/net/ethernet/aquantia/atlantic/aq_ring.h

View file

8

drivers/net/ethernet/aquantia/atlantic/aq_vec.c

View file