kernel-hacking-2024-linux-s.../net/core
Ben Hutchings 6de329e26c net: Fix test for VLAN TX checksum offload capability
Selected device feature bits can be propagated to VLAN devices, so we
can make use of TX checksum offload and TSO on VLAN-tagged packets.
However, if the physical device does not do VLAN tag insertion or
generic checksum offload then the test for TX checksum offload in
dev_queue_xmit() will see a protocol of htons(ETH_P_8021Q) and yield
false.

This splits the checksum offload test into two functions:

- can_checksum_protocol() tests a given protocol against a feature bitmask

- dev_can_checksum() first tests the skb protocol against the device
  features; if that fails and the protocol is htons(ETH_P_8021Q) then
  it tests the encapsulated protocol against the effective device
  features for VLANs

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-06-16 17:02:28 -07:00
..
datagram.c
dev.c net: Fix test for VLAN TX checksum offload capability 2008-06-16 17:02:28 -07:00
dev_mcast.c
dst.c [NET]: uninline dst_release 2008-03-27 17:53:31 -07:00
ethtool.c ethtool: EEPROM dump no longer works for tg3 and natsemi 2008-04-24 20:55:56 -07:00
fib_rules.c [NETNS]: Add netns refcnt debug to fib rules. 2008-04-16 02:01:56 -07:00
filter.c net: use get/put_unaligned_* helpers 2008-05-02 16:26:16 -07:00
flow.c net: Remove unnecessary inclusions of asm/semaphore.h 2008-04-18 22:15:50 -04:00
gen_estimator.c
gen_stats.c
iovec.c
kmap_skb.h
link_watch.c
Makefile
neighbour.c netlink: Improve returned error codes 2008-06-03 16:36:54 -07:00
net-sysfs.c netns: Fix device renaming for sysfs 2008-05-02 17:00:58 -07:00
net-sysfs.h netns: Fix device renaming for sysfs 2008-05-02 17:00:58 -07:00
net_namespace.c [NETNS]: Make netns refconting debug like a socket one. 2008-04-16 01:58:04 -07:00
netevent.c
netpoll.c net: Allow netdevices to specify needed head/tailroom 2008-05-12 20:48:31 -07:00
pktgen.c pktgen: make sure that pktgen_thread_worker has been executed 2008-05-20 15:12:44 -07:00
request_sock.c
rtnetlink.c netlink: Improve returned error codes 2008-06-03 16:36:54 -07:00
scm.c
skbuff.c tcp: Fix for race due to temporary drop of the socket lock in skb_splice_bits. 2008-06-04 15:45:58 -07:00
sock.c net: Fix typo in net/core/sock.c. 2008-05-14 03:50:03 -07:00
stream.c
sysctl_net_core.c [NETNS]: Introduce a netns_core structure. 2008-03-31 19:41:14 -07:00
user_dma.c net_dma: remove duplicate assignment in dma_skb_copy_datagram_iovec 2008-06-03 16:07:45 -07:00
utils.c