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05d62ca218
linux/drivers/net
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Sameeh Jubran 05d62ca218 net: ena: add handling of llq max tx burst size 
There is a maximum TX burst size that the ENA device can handle.
It is exposed by the device to the driver and the driver
needs to comply with it to avoid bugs.

In this commit we:
1. Add ena_com_is_doorbell_needed(), which calculates the number of
   llq entries that will be used to hold a packet, and will return
   true if they exceed the number of allowed entries in a burst.
   If the function returns true, a doorbell needs to be invoked
   to send this packet in the next burst.

2. Follow the available entries in the current burst:
   - Every doorbell a new burst begins
   - With each write of an llq entry, the available entries in the
     current burst are decreased by 1.

Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-06-03 13:30:38 -07:00
..
appletalk treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
arcnet treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
bonding Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-30 21:11:22 -07:00
caif treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
can treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
dsa net: dsa: mv88e6xxx: make mv88e6xxx_g1_stats_wait static 2019-06-03 10:08:49 -07:00
ethernet net: ena: add handling of llq max tx burst size 2019-06-03 13:30:38 -07:00
fddi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-22 08:28:16 -07:00
fjes
hamradio treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 69 2019-05-24 17:36:47 +02:00
hippi treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
hyperv netvsc: unshare skb in VF rx handler 2019-05-30 11:12:21 -07:00
ieee802154 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
ipvlan treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
netdevsim netdevsim: Make nsim_num_vf static 2019-05-05 10:48:45 -07:00
phy net: sfp: remove sfp-bus use of netdevs 2019-05-31 12:37:46 -07:00
plip net: ipv4: provide __rcu annotation for ifa_list 2019-06-02 18:08:36 -07:00
ppp SPDX update for 5.2-rc2, round 1 2019-05-21 12:33:38 -07:00
slip treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
team treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-22 08:28:16 -07:00
vmxnet3 net: ipv4: provide __rcu annotation for ifa_list 2019-06-02 18:08:36 -07:00
wan drivers: use in_dev_for_each_ifa_rtnl/rcu 2019-06-02 18:06:26 -07:00
wimax treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
wireless net: ipv4: provide __rcu annotation for ifa_list 2019-06-02 18:08:36 -07:00
xen-netback xen-netback: remove redundant assignment to err 2019-05-31 14:36:48 -07:00
dummy.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
eql.c
geneve.c
gtp.c genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
ifb.c
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
LICENSE.SRC
loopback.c
macsec.c genetlink: optionally validate strictly/dumps 2019-04-27 17:07:22 -04:00
macvlan.c macvlan: Replace strncpy() by strscpy() 2019-05-29 00:00:01 -07:00
macvtap.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
Makefile net: Always descend into dsa/ 2019-05-14 15:20:11 -07:00
mdio.c
mii.c
net_failover.c
netconsole.c
nlmon.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ntb_netdev.c
rionet.c
sb1000.c sb1000: fix variable set but not used warnings 2019-04-18 17:06:15 -07:00
Space.c
sungem_phy.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
tap.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
thunderbolt.c net: thunderbolt: Unregister ThunderboltIP protocol handler when suspending 2019-04-18 11:18:51 +03:00
tun.c tuntap: synchronize through tfiles array instead of tun->numqueues 2019-05-09 09:21:42 -07:00
veth.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
virtio_net.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00
vrf.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-04-25 23:52:29 -04:00
vsockmon.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
vxlan.c
xen-netfront.c xen-netfront: mark expected switch fall-through 2019-04-16 21:03:02 -07:00