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* 8021q: Vlan driver should use rcu_barrier() on unload instead of ↵Jesper Dangaard Brouer2009-06-101-1/+1
| | | | | | | | | | | | | | syncronize_net() The VLAN 8021q driver needs to call rcu_barrier() when unloading the module, instead of syncronize_net(). This is needed to make sure that outstanding call_rcu() callbacks have completed, before the callback function code is removed on module unload. Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: convert unicast addr listJiri Pirko2009-05-302-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch converts unicast address list to standard list_head using previously introduced struct netdev_hw_addr. It also relaxes the locking. Original spinlock (still used for multicast addresses) is not needed and is no longer used for a protection of this list. All reading and writing takes place under rtnl (with no changes). I also removed a possibility to specify the length of the address while adding or deleting unicast address. It's always dev->addr_len. The convertion touched especially e1000 and ixgbe codes when the change is not so trivial. Signed-off-by: Jiri Pirko <jpirko@redhat.com> drivers/net/bnx2.c | 13 +-- drivers/net/e1000/e1000_main.c | 24 +++-- drivers/net/ixgbe/ixgbe_common.c | 14 ++-- drivers/net/ixgbe/ixgbe_common.h | 4 +- drivers/net/ixgbe/ixgbe_main.c | 6 +- drivers/net/ixgbe/ixgbe_type.h | 4 +- drivers/net/macvlan.c | 11 +- drivers/net/mv643xx_eth.c | 11 +- drivers/net/niu.c | 7 +- drivers/net/virtio_net.c | 7 +- drivers/s390/net/qeth_l2_main.c | 6 +- drivers/scsi/fcoe/fcoe.c | 16 ++-- include/linux/netdevice.h | 18 ++-- net/8021q/vlan.c | 4 +- net/8021q/vlan_dev.c | 10 +- net/core/dev.c | 195 +++++++++++++++++++++++++++----------- net/dsa/slave.c | 10 +- net/packet/af_packet.c | 4 +- 18 files changed, 227 insertions(+), 137 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
* net: remove COMPAT_NET_DEV_OPSAlexander Beregalov2009-05-251-1/+0
| | | | | | | | All drivers are already converted to new net_device_ops API and nobody uses old API anymore. Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: release dst entry in dev_hard_start_xmit()Eric Dumazet2009-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | One point of contention in high network loads is the dst_release() performed when a transmited skb is freed. This is because NIC tx completion calls dev_kree_skb() long after original call to dev_queue_xmit(skb). CPU cache is cold and the atomic op in dst_release() stalls. On SMP, this is quite visible if one CPU is 100% handling softirqs for a network device, since dst_clone() is done by other cpus, involving cache line ping pongs. It seems right place to release dst is in dev_hard_start_xmit(), for most devices but ones that are virtual, and some exceptions. David Miller suggested to define a new device flag, set in alloc_netdev_mq() (so that most devices set it at init time), and carefuly unset in devices which dont want a NULL skb->dst in their ndo_start_xmit(). List of devices that must clear this flag is : - loopback device, because it calls netif_rx() and quoting Patrick : "ip_route_input() doesn't accept loopback addresses, so loopback packets already need to have a dst_entry attached." - appletalk/ipddp.c : needs skb->dst in its xmit function - And all devices that call again dev_queue_xmit() from their xmit function (as some classifiers need skb->dst) : bonding, vlan, macvlan, eql, ifb, hdlc_fr Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: use struct netdev_queue counters instead of dev->statsEric Dumazet2009-05-192-8/+9
| | | | | | | | | | | We can update netdev_queue tx_bytes/tx_packets/tx_dropped counters instead of dev->stats ones, to reduce number of cache lines dirtied in xmit path. This fixes a performance problem on SMP when many different cpus take vlan tx path. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-04-302-0/+7
|\ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: Documentation/isdn/00-INDEX drivers/net/wireless/iwlwifi/iwl-scan.c drivers/net/wireless/rndis_wlan.c net/mac80211/main.c
| * vlan: update vlan carrier state for admin up/downJay Vosburgh2009-04-262-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, the VLAN event handler does not adjust the VLAN device's carrier state when the real device or the VLAN device is set administratively up or down. The following patch adds a transfer of operating state from the real device to the VLAN device when the real device is administratively set up or down, and sets the carrier state up or down during init, open and close of the VLAN device. This permits observers above the VLAN device that care about the carrier state (bonding's link monitor, for example) to receive updates for administrative changes by more closely mimicing the behavior of real devices. Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
* | net: factor out ethtool invocation of vlan/macvlan driversPatrick McHardy2009-04-211-20/+3
| | | | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-04-211-1/+2
|\| | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: net/core/dev.c
| * vlan/macvlan: fix NULL pointer dereferences in ethtool handlersPatrick McHardy2009-04-181-1/+2
| | | | | | | | | | | | | | | | | | Check whether the underlying device provides a set of ethtool ops before checking for individual handlers to avoid NULL pointer dereferences. Reported-by: Art van Breemen <ard@telegraafnet.nl> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-04-171-1/+3
|\| | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * gro: Normalise skb before bypassing GRO on netpoll VLAN pathHerbert Xu2009-04-141-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi: gro: Normalise skb before bypassing GRO on netpoll VLAN path When we detect netpoll RX on the GRO VLAN path we bail out and call the normal VLAN receive handler. However, the packet needs to be normalised by calling eth_type_trans since that's what the normal path expects (normally the GRO path does the fixup). This patch adds the necessary call to vlan_gro_frags. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Thanks, Signed-off-by: David S. Miller <davem@davemloft.net>
* | gro: New frags interface to avoid copying shinfoHerbert Xu2009-04-161-2/+2
|/ | | | | | | | | | | It turns out that copying a 16-byte area at ~800k times a second can be really expensive :) This patch redesigns the frags GRO interface to avoid copying that area twice. The two disciples of the frags interface have been converted. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* gro: Fix vlan/netpoll check againHerbert Xu2009-03-171-3/+6
| | | | | | | | | | | Jarek Poplawski pointed out that my previous fix is broken for VLAN+netpoll as if netpoll is enabled we'd end up in the normal receive path instead of the VLAN receive path. This patch fixes it by calling the VLAN receive hook. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* GRO: Move netpoll checks to correct locationHerbert Xu2009-03-161-7/+4
| | | | | | | | | | | | | | | | | | | | | As my netpoll fix for net doesn't really work for net-next, we need this update to move the checks into the right place. As it stands we may pass freed skbs to netpoll_receive_skb. This patch also introduces a netpoll_rx_on function to avoid GRO completely if we're invoked through netpoll. This might seem paranoid but as netpoll may have an external receive hook it's better to be safe than sorry. I don't think we need this for 2.6.29 though since there's nothing immediately broken by it. This patch also moves the GRO_* return values to netdevice.h since VLAN needs them too (I tried to avoid this originally but alas this seems to be the easiest way out). This fixes a bug in VLAN where it continued to use the old return value 2 instead of the correct GRO_DROP. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: convert usage of packet_type to read_mostlyStephen Hemminger2009-03-101-1/+1
| | | | | | | | Protocols that use packet_type can be __read_mostly section for better locality. Elminate any unnecessary initializations of NULL. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-03-051-1/+2
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tokenring/tmspci.c drivers/net/ucc_geth_mii.c
| * vlan: Fix vlan-in-vlan crashes.David S. Miller2009-03-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As analyzed by Patrick McHardy, vlan needs to reset it's netdev_ops pointer in it's ->init() function but this leaves the compat method pointers stale. Add a netdev_resync_ops() and call it from the vlan code. Any other driver which changes ->netdev_ops after register_netdevice() will need to call this new function after doing so too. With help from Patrick McHardy. Tested-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2009-03-021-0/+10
|\| | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-tx.c net/8021q/vlan_core.c net/core/dev.c
| * netpoll: Add drop checks to all entry pointsHerbert Xu2009-03-011-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The netpoll entry checks are required to ensure that we don't receive normal packets when invoked via netpoll. Unfortunately it only ever worked for the netif_receive_skb/netif_rx entry points. The VLAN (and subsequently GRO) entry point didn't have the check and therefore can trigger all sorts of weird problems. This patch adds the netpoll check to all entry points. I'm still uneasy with receiving at all under netpoll (which apparently is only used by the out-of-tree kdump code). The reason is it is perfectly legal to receive all data including headers into highmem if netpoll is off, but if you try to do that with netpoll on and someone gets a printk in an IRQ handler you're going to get a nice BUG_ON. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | gro: Optimise Ethernet header comparisonHerbert Xu2009-02-091-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch optimises the Ethernet header comparison to use 2-byte and 4-byte xors instead of memcmp. In order to facilitate this, the actual comparison is now carried out by the callers of the shared dev_gro_receive function. This has a significant impact when receiving 1500B packets through 10GbE. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: replace uses of __constant_{endian}Harvey Harrison2009-02-011-1/+1
| | | | | | | | | | | | | | Base versions handle constant folding now. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | gro: Avoid copying headers of unmerged packetsHerbert Xu2009-01-301-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unfortunately simplicity isn't always the best. The fraginfo interface turned out to be suboptimal. The problem was quite obvious. For every packet, we have to copy the headers from the frags structure into skb->head, even though for 99% of the packets this part is immediately thrown away after the merge. LRO didn't have this problem because it directly read the headers from the frags structure. This patch attempts to address this by creating an interface that allows GRO to access the headers in the first frag without having to copy it. Because all drivers that use frags place the headers in the first frag this optimisation should be enough. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* | gro: Move common completion code into helpersHerbert Xu2009-01-301-35/+4
|/ | | | | | | | | Currently VLAN still has a bit of common code handling the aftermath of GRO that's shared with the common path. This patch moves them into shared helpers to reduce code duplication. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: Export symbols as non GPL symbols.Ben Greear2009-01-261-2/+2
| | | | | | | | | | | | | | | In previous kernels, any kernel module could get access to the 'real-device' and the VLAN-ID for a particular VLAN. In more recent kernels, the code was restructured such that this is hard to do without accessing private .h files for any module that cannot use GPL-only symbols. Attached is a patch to once again allow non-GPL modules the ability to access the real-device and VLAN id for VLANs. Signed-off-by: Ben Greear <greearb@candelatech.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: add neigh_setupFrank Blaschka2009-01-081-0/+14
| | | | | | | | In case the real device has a neigh_setup function, this neigh_setup function should be used for the vlan device. Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: Add GRO interfacesHerbert Xu2009-01-061-23/+88
| | | | | | | | | | | | | | | | This patch adds GRO interfaces for hardware-assisted VLAN reception. With this in place we're now at parity with LRO as far as the interface is concerned. That is, you can now take any LRO driver and convert it over to GRO. As the CB memory clashes with GRO's use of CB, I've removed it entirely by storing dev in skb->dev. This is OK because VLAN gets called first thing in netif_receive_skb and skb->dev is not used in between us calling netif_rx and netif_receive_skb getting called. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: fix convertion to net_device_opsEric Dumazet2008-12-261-2/+20
| | | | | | | | | | | | | | commit 656299f706e52e0409733d704c2761f1b12d6954 (vlan: convert to net_device_ops) added a net_device_ops with a NULL ndo_start_xmit field. This gives a crash in dev_hard_start_xmit() Fix it using two net_device_ops structures, one for hwaccel vlan, one for non hwaccel vlan. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: convert to net_device_opsStephen Hemminger2008-11-202-20/+28
| | | | | | | Convert vlan devices and function pointers to net_device_ops. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2008-11-121-1/+1
|\ | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/message/fusion/mptlan.c drivers/net/sfc/ethtool.c net/mac80211/debugfs_sta.c
| * vlan: Fix typos in proc output stringFerenc Wagner2008-11-101-1/+1
| | | | | | | | | | Signed-off-by: Ferenc Wagner <wferi@niif.hu> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of ↵David S. Miller2008-11-071-12/+31
|\| | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/ath5k/base.c net/8021q/vlan_core.c
| * net: fix packet socket delivery in rx irq handlerPatrick McHardy2008-11-041-13/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The changes to deliver hardware accelerated VLAN packets to packet sockets (commit bc1d0411) caused a warning for non-NAPI drivers. The __vlan_hwaccel_rx() function is called directly from the drivers RX function, for non-NAPI drivers that means its still in RX IRQ context: [ 27.779463] ------------[ cut here ]------------ [ 27.779509] WARNING: at kernel/softirq.c:136 local_bh_enable+0x37/0x81() ... [ 27.782520] [<c0264755>] netif_nit_deliver+0x5b/0x75 [ 27.782590] [<c02bba83>] __vlan_hwaccel_rx+0x79/0x162 [ 27.782664] [<f8851c1d>] atl1_intr+0x9a9/0xa7c [atl1] [ 27.782738] [<c0155b17>] handle_IRQ_event+0x23/0x51 [ 27.782808] [<c015692e>] handle_edge_irq+0xc2/0x102 [ 27.782878] [<c0105fd5>] do_IRQ+0x4d/0x64 Split hardware accelerated VLAN reception into two parts to fix this: - __vlan_hwaccel_rx just stores the VLAN TCI and performs the VLAN device lookup, then calls netif_receive_skb()/netif_rx() - vlan_hwaccel_do_receive(), which is invoked by netif_receive_skb() in softirq context, performs the real reception and delivery to packet sockets. Reported-and-tested-by: Ramon Casellas <ramon.casellas@cttc.es> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/: Kill now superfluous ->last_rx stores.David S. Miller2008-11-042-3/+0
| | | | | | | | | | | | | | | | The generic packet receive code takes care of setting netdev->last_rx when necessary, for the sake of the bonding ARP monitor. Signed-off-by: David S. Miller <davem@davemloft.net>
* | vlan: propogate ethtool speed valuesStephen Hemminger2008-10-293-6/+30
|/ | | | | | | | | | | | This enables more ethtool information. The speed and settings of the underlying device are propagated up. This makes services like SNMP that use ethtool to get speed setting, work when managing a vlan, without adding silly heurtistics into SNMP daemon. For the driver info, just use existing driver strings. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Use hton[sl]() instead of __constant_hton[sl]() where applicableArnaldo Carvalho de Melo2008-09-211-1/+1
| | | | | Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan: vlan device not reading gso max size of parent.Alexander Duyck2008-09-122-0/+2
| | | | | | | | | | | | | The vlan devices are not reading the gso max size of the parent device. As a result devices that do not support 64K max gso size are currently failing. This issue is seen on 2.6.26 kernels as well and the same patch should be able to be applied without any issues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: Handle ->addr_list_lock just like ->_xmit_lock for lockdep.David S. Miller2008-07-221-0/+4
| | | | | | | | | The new address list lock needs to handle the same device layering issues that the _xmit_lock one does. This integrates work done by Patrick McHardy. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2008-07-181-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
| * Merge branch 'linus' into core/rcuIngo Molnar2008-06-162-3/+27
| |\
| * | rcu: split list.h and move rcu-protected lists into rculist.hFranck Bui-Huu2008-05-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move rcu-protected lists from list.h into a new header file rculist.h. This is done because list are a very used primitive structure all over the kernel and it's currently impossible to include other header files in this list.h without creating some circular dependencies. For example, list.h implements rcu-protected list and uses rcu_dereference() without including rcupdate.h. It actually compiles because users of rcu_dereference() are macros. Others RCU functions could be used too but aren't probably because of this. Therefore this patch creates rculist.h which includes rcupdates without to many changes/troubles. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Josh Triplett <josh@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | netdev: Allocate multiple queues for TX.David S. Miller2008-07-181-4/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | alloc_netdev_mq() now allocates an array of netdev_queue structures for TX, based upon the queue_count argument. Furthermore, all accesses to the TX queues are now vectored through the netdev_get_tx_queue() and netdev_for_each_tx_queue() interfaces. This makes it easy to grep the tree for all things that want to get to a TX queue of a net device. Problem spots which are not really multiqueue aware yet, and only work with one queue, can easily be spotted by grepping for all netdev_get_tx_queue() calls that pass in a zero index. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | vlan: remove unnecessary include statementsPatrick McHardy2008-07-153-22/+4
| | | | | | | | | | | | | | | Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | vlan: clean up hard_start_xmit functionsPatrick McHardy2008-07-151-35/+6
| | | | | | | | | | | | | | | | | | | | | | | | Remove excessive comments and debugging, use NETDEV_TX codes, remove some empty lines. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | vlan: clean up vlan_dev_hard_header()Patrick McHardy2008-07-151-46/+9
| | | | | | | | | | | | | | | | | | | | | | | | Remove some debugging and excessive comments, merge the two dev_hard_header calls into one. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | vlan: ethtool ->get_flags supportPatrick McHardy2008-07-151-0/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow to query LRO settings of underlying device when VLAN RX acceleration is used. Suggested by Ben Hutchings <bhutchings@solarflare.com>. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | vlan: deliver packets received with VLAN acceleration to network tapsPatrick McHardy2008-07-151-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When VLAN header stripping is used, packets currently bypass packet sockets (and other network taps) completely. For locally existing VLANs, they appear directly on the VLAN device, for unknown VLANs they are silently dropped. Add a new function netif_nit_deliver() to deliver incoming packets to all network interface taps and use it in __vlan_hwaccel_rx() to make VLAN packets visible on the underlying device. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | 8021q: Check return of dev_set_promiscuity/allmultiWang Chen2008-07-151-6/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dev_set_promiscuity/allmulti might overflow. Commit: "netdevice: Fix promiscuity and allmulti overflow" in net-next makes dev_set_promiscuity/allmulti return error number if overflow happened. Here, we check all positive increment for promiscuity and allmulti to get error return. Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com> Acked-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | netdev: Move _xmit_lock and xmit_lock_owner into netdev_queue.David S. Miller2008-07-091-2/+13
| | | | | | | | | | | | | | | | | | | | | Accesses are mostly structured such that when there are multiple TX queues the code transformations will be a little bit simpler. Signed-off-by: David S. Miller <davem@davemloft.net>
* | | vlan: avoid header copying and linearisation where possiblePatrick McHardy2008-07-091-29/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - vlan_dev_reorder_header() is only called on the receive path after calling skb_share_check(). This means we can use skb_cow() since all we need is a writable header. - vlan_dev_hard_header() includes a work-around for some apparently broken out of tree MPLS code. The hard_header functions can expect to always have a headroom of at least there own hard_header_len available, so the reallocation check is unnecessary. - __vlan_put_tag() can use skb_cow_head() to avoid the skb_unshare() copy when the header is writable. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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