linux/net
Patrick McHardy 572a9d7b6f net: allow to propagate errors through ->ndo_hard_start_xmit()
Currently the ->ndo_hard_start_xmit() callbacks are only permitted to return
one of the NETDEV_TX codes. This prevents any kind of error propagation for
virtual devices, like queue congestion of the underlying device in case of
layered devices, or unreachability in case of tunnels.

This patches changes the NET_XMIT codes to avoid clashes with the NETDEV_TX
codes and changes the two callers of dev_hard_start_xmit() to expect either
errno codes, NET_XMIT codes or NETDEV_TX codes as return value.

In case of qdisc_restart(), all non NETDEV_TX codes are mapped to NETDEV_TX_OK
since no error propagation is possible when using qdiscs. In case of
dev_queue_xmit(), the error is propagated upwards.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-13 14:07:32 -08:00
..
9p virtio: add virtio IDs file 2009-09-23 22:26:32 +09:30
802 net: remove COMPAT_NET_DEV_OPS 2009-05-25 01:53:53 -07:00
8021q vlan: eliminate use of dev_base_lock 2009-11-10 22:26:30 -08:00
appletalk net/appletalk: using compat_ptr needs inclusion of linux/compat.h 2009-11-08 20:41:03 -08:00
atm net/atm: move all compat_ioctl handling to atm/ioctl.c 2009-11-11 19:22:23 -08:00
ax25 net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
bluetooth net: check kern before calling security subsystem 2009-11-05 22:18:18 -08:00
bridge Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-11-06 00:55:55 -08:00
can CAN: use dev_get_by_index_rcu 2009-11-10 22:27:13 -08:00
core net: allow to propagate errors through ->ndo_hard_start_xmit() 2009-11-13 14:07:32 -08:00
dcb net: fix double skb free in dcbnl 2009-09-26 20:16:15 -07:00
dccp net: drop capability from protocol definitions 2009-11-05 21:40:17 -08:00
decnet decnet: convert dndev_lock to spinlock 2009-11-11 19:22:18 -08:00
dsa netdev: convert pseudo-devices to netdev_tx_t 2009-09-01 01:13:07 -07:00
econet net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
ethernet net: remove COMPAT_NET_DEV_OPS 2009-05-25 01:53:53 -07:00
ieee802154 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/lowpan/lowpan 2009-11-06 17:57:51 -08:00
ipv4 IPV4: use rcu to walk list of devices in IGMP 2009-11-10 22:27:12 -08:00
ipv6 ipv6: Remove unused var in inet6_dump_ifinfo() 2009-11-11 18:53:00 -08:00
ipx net/ipx: push down BKL into a ipx_dgram_ops 2009-11-07 00:46:39 -08:00
irda net/irda: push BKL into proto_ops 2009-11-07 00:46:39 -08:00
iucv net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
key net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
lapb net: remove NET_RX_BAD and NET_RX_CN* defines 2009-07-05 19:15:35 -07:00
llc net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
mac80211 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-11-09 11:17:24 -08:00
netfilter Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-11-08 23:00:54 -08:00
netlabel netlabel: remove dev_put() calls 2009-11-05 22:34:18 -08:00
netlink net: netlink_getname, packet_getname -- use DECLARE_SOCKADDR guard 2009-11-10 20:54:41 -08:00
netrom net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
packet net: netlink_getname, packet_getname -- use DECLARE_SOCKADDR guard 2009-11-10 20:54:41 -08:00
phonet Phonet: allocate and copy for pipe TX without sock lock 2009-11-10 20:54:34 -08:00
rds net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
rfkill headers: remove sched.h from poll.h 2009-10-04 15:05:10 -07:00
rose Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-11-06 00:55:55 -08:00
rxrpc net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
sched net: allow to propagate errors through ->ndo_hard_start_xmit() 2009-11-13 14:07:32 -08:00
sctp sctp: ipv6: avoid touching device refcount 2009-11-05 22:34:21 -08:00
sunrpc Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2009-11-06 00:55:55 -08:00
tipc net: pass kern to net_proto_family create function 2009-11-05 22:18:14 -08:00
unix net: netlink_getname, packet_getname -- use DECLARE_SOCKADDR guard 2009-11-10 20:54:41 -08:00
wanrouter headers: smp_lock.h redux 2009-07-12 12:22:34 -07:00
wimax wimax: allow WIMAX_RF_QUERY calls when state is still uninitialized 2009-10-19 15:56:14 +09:00
wireless Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 2009-11-09 11:17:24 -08:00
x25 net/x25: push BKL usage into x25_proto 2009-11-07 00:46:40 -08:00
xfrm xfrm: SAD entries do not expire correctly after suspend-resume 2009-11-08 20:58:41 -08:00
compat.c net: Cleanup redundant tests on unsigned 2009-10-29 01:39:54 -07:00
Kconfig net/compat/wext: send different messages to compat tasks 2009-07-15 08:53:39 -07:00
Makefile net: remove redundant sched/ in net/Makefile 2009-07-12 20:11:14 -07:00
nonet.c
socket.c net/atm: move all compat_ioctl handling to atm/ioctl.c 2009-11-11 19:22:23 -08:00
sysctl_net.c net: sysctl_net - use net_eq to compare nets 2009-03-16 16:23:30 +01:00
TUNABLE