Eric Dumazet ce6aea93f7 net: network drivers no longer need to implement ndo_busy_poll() ... Instead of having to implement complex ndo_busy_poll() method, drivers can simply rely on NAPI poll logic. Busy polling gains are mainly coming from polling itself, not on exact details on how we poll the device. ndo_busy_poll() if implemented can avoid touching napi state, but it adds extra synchronization between normal napi->poll() and busy poll handler, slowing down the common path (non busy polling) with extra atomic operations. In practice few drivers ever got busy poll because of the complexity. We could go one step further, and make busy polling available for all NAPI drivers, but this would require that all netif_napi_del() calls are done in process context so that we can call synchronize_rcu(). Full audit would be required. Before this is done, a driver still needs to call : - skb_mark_napi_id() for each skb provided to the stack. - napi_hash_add() and napi_hash_del() to allocate a napi_id per napi struct. - Make sure RCU grace period is respected after napi_hash_del() before memory containing napi structure is freed. Followup patch implements busy poll for mlx5 driver as an example. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-11-18 16:17:39 -05:00
..
6lowpan	6lowpan: put mcast compression in an own function	2015-10-21 00:49:25 +02:00
9p	IB/cma: Add support for network namespaces	2015-10-28 12:32:48 -04:00
802	…
8021q	vlan: Do not put vlan headers back on bridge and macvlan ports	2015-11-17 14:38:35 -05:00
appletalk	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
atm	atm: deal with setting entry before mkip was called	2015-09-17 22:13:32 -07:00
ax25	NET: AX.25: Stop heartbeat timer on disconnect.	2015-07-15 15:59:58 -07:00
batman-adv	batman-adv: turn batadv_neigh_node_get() into local function	2015-08-27 20:15:34 +02:00
bluetooth	Bluetooth: L2CAP: Add missing checks for invalid LE DCID	2015-11-05 04:04:15 +01:00
bridge	switchdev: bridge: Check return code is not EOPNOTSUPP	2015-11-16 14:56:03 -05:00
caif	net: caif: convert to using IFF_NO_QUEUE	2015-08-18 11:55:07 -07:00
can	can: avoid using timeval for uapi	2015-10-13 17:42:34 +02:00
ceph	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2015-11-13 09:24:40 -08:00
core	net: network drivers no longer need to implement ndo_busy_poll()	2015-11-18 16:17:39 -05:00
dcb	net/dcb: make dcbnl.c explicitly non-modular	2015-10-09 07:52:27 -07:00
dccp	tcp/dccp: fix ireq->pktopts race	2015-11-02 15:38:26 -05:00
decnet	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2015-10-17 14:28:03 +02:00
dns_resolver	KEYS: Merge the type-specific data with the payload data	2015-10-21 15:18:36 +01:00
dsa	net: dsa: use switchdev obj for VLAN add/del ops	2015-11-01 15:56:11 -05:00
ethernet	net: help compiler generate better code in eth_get_headlen	2015-09-28 22:51:15 -07:00
hsr	net: hsr: convert to using IFF_NO_QUEUE	2015-08-18 11:55:07 -07:00
ieee802154	net: fix percpu memory leaks	2015-11-02 22:47:14 -05:00
ipv4	net ipv4: use preferred log methods	2015-11-18 13:37:20 -05:00
ipv6	snmp: Remove duplicate OUTMCAST stat increment	2015-11-16 16:36:32 -05:00
ipx	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
irda	TTY/Serial driver patches for 4.4-rc1	2015-11-04 21:35:12 -08:00
iucv	s390/iucv: do not use arrays as argument	2015-09-21 16:03:04 -07:00
key	af_key: fix two typos	2015-10-23 03:05:19 -07:00
l2tp	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-10-02 07:21:25 -07:00
l3mdev	net: Add netif_is_l3_slave	2015-10-07 04:27:43 -07:00
lapb	…
llc	tcp: fix recv with flags MSG_WAITALL | MSG_PEEK	2015-07-27 01:06:53 -07:00
mac80211	mac80211: document sleep requirements for channel context ops	2015-11-03 11:15:48 +01:00
mac802154	mac802154: llsec: use kzfree	2015-10-21 00:49:24 +02:00
mpls	mpls: reduce memory usage of routes	2015-10-27 19:52:59 -07:00
netfilter	ipvs: use skb_to_full_sk() helper	2015-11-15 18:39:48 -05:00
netlabel	…
netlink	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
netrom	netfilter: Remove spurios included of netfilter.h	2015-06-18 21:14:32 +02:00
nfc	NFC: nci: non-static functions can not be inline	2015-10-28 06:44:45 +01:00
openvswitch	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2015-11-07 13:05:44 -08:00
packet	packet: Use PAGE_ALIGNED macro	2015-11-17 15:25:44 -05:00
phonet	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
rds	Merge branch 'akpm' (patches from Andrew)	2015-11-07 14:32:45 -08:00
rfkill	rfkill: Copy "all" global state to other types	2015-09-04 14:26:56 +02:00
rose	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-06-24 02:58:51 -07:00
rxrpc	mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd	2015-11-06 17:50:42 -08:00
sched	net_sched: em_meta: use skb_to_full_sk() helper	2015-11-08 20:56:39 -05:00
sctp	sctp: translate host order to network order when setting a hmacid	2015-11-15 18:27:27 -05:00
sunrpc	Mainly smaller bugfixes and cleanup. We're still finding some bugs from	2015-11-11 20:11:28 -08:00
switchdev	switchdev: respect SKIP_EOPNOTSUPP flag in case there is no recursion	2015-11-03 13:39:21 -05:00
tipc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-11-03 13:41:45 -05:00
unix	af_unix: take receive queue lock while appending new skb	2015-11-17 15:25:45 -05:00
vmw_vsock	VSOCK: call sk->sk_data_ready() on accept()	2015-11-04 22:03:10 -05:00
wimax	net:wimax: Fix doucble word "the the" in networking.xml	2015-08-09 22:43:52 -07:00
wireless	cfg80211: allow AID/listen interval changes for unassociated station	2015-11-03 11:20:29 +01:00
x25	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
xfrm	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next	2015-10-30 20:51:56 +09:00
Kconfig	net: Introduce L3 Master device abstraction	2015-09-29 20:40:32 -07:00
Makefile	net: Introduce L3 Master device abstraction	2015-09-29 20:40:32 -07:00
compat.c	…
socket.c	net: Drop unlikely before IS_ERR(_OR_NULL)	2015-09-29 15:15:40 +02:00
sysctl_net.c	net: sysctl: fix a kmemleak warning	2015-10-23 06:22:08 -07:00