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2011-05-08ipv4: Pass flow keys down into datagram packet building engine.David S. Miller5-93/+91
This way ip_output.c no longer needs rt->rt_{src,dst}. We already have these keys sitting, ready and waiting, on the stack or in a socket structure. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08udp: Use flow key information instead of rt->rt_{src,dst}David S. Miller1-6/+8
We have two cases. Either the socket is in TCP_ESTABLISHED state and connect() filled in the inet socket cork flow, or we looked up the route here and used an on-stack flow. Track which one it was, and use it to obtain src/dst addrs. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08net: Allow ethtool to set interface in loopback mode.Mahesh Bandewar3-3/+5
This patch enables ethtool to set the loopback mode on a given interface. By configuring the interface in loopback mode in conjunction with a policy route / rule, a userland application can stress the egress / ingress path exposing the flows of the change in progress and potentially help developer(s) understand the impact of those changes without even sending a packet out on the network. Following set of commands illustrates one such example - a) ip -4 addr add 192.168.1.1/24 dev eth1 b) ip -4 rule add from all iif eth1 lookup 250 c) ip -4 route add local 0/0 dev lo proto kernel scope host table 250 d) arp -Ds 192.168.1.100 eth1 e) arp -Ds 192.168.1.200 eth1 f) sysctl -w net.ipv4.ip_nonlocal_bind=1 g) sysctl -w net.ipv4.conf.all.accept_local=1 # Assuming that the machine has 8 cores h) taskset 000f netserver -L 192.168.1.200 i) taskset 00f0 netperf -t TCP_CRR -L 192.168.1.100 -H 192.168.1.200 -l 30 Signed-off-by: Mahesh Bandewar <maheshb@google.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08pktgen: use %pI6c for printing IPv6 addressesAlexey Dobriyan1-96/+13
I don't know why %pI6 doesn't compress, but the format specifier is kernel-standard, so use it. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ethtool: Add 20G bit definitionsYaniv Rosner1-0/+4
Add 20G supported and advertising bit definitions. 20G will be supported with the 57840 chips. Signed-off-by: Yaniv Rosner <yanivr@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> ------ include/linux/ethtool.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08Merge branch 'batman-adv/next' of git://git.open-mesh.org/ecsv/linux-mergeDavid S. Miller20-557/+712
2011-05-08tcp: Use cork flow info instead of rt->rt_dst in tcp_v4_get_peer()David S. Miller1-1/+2
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08sctp: Don't use rt->rt_{src,dst} in sctp_v4_xmit()David S. Miller1-2/+2
Now we can pick it out of the transport's flow key. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ipv4: Don't use rt->rt_{src,dst} in ip_queue_xmit().David S. Miller1-4/+4
Now we can pick it out of the provided flow key. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08inet: Pass flowi to ->queue_xmit().David S. Miller10-15/+17
This allows us to acquire the exact route keying information from the protocol, however that might be managed. It handles all of the possibilities, from the simplest case of storing the key in inet->cork.fl to the more complex setup SCTP has where individual transports determine the flow. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ipv4: Use inet_csk_route_child_sock() in DCCP and TCP.David S. Miller2-17/+20
Operation order is now transposed, we first create the child socket then we try to hook up the route. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ipv4: Create inet_csk_route_child_sock().David S. Miller2-0/+36
This is just like inet_csk_route_req() except that it operates after we've created the new child socket. In this way we can use the new socket's cork flow for proper route key storage. This will be used by DCCP and TCP child socket creation handling. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08sctp: Store a flowi in transports to provide persistent keying.David S. Miller2-6/+4
Several future simplifications are possible now because of this. For example, the sctp_addr unions can simply refer directly to the flowi information. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ipv4: Use cork flow in ip_queue_xmit()David S. Miller1-2/+3
All invokers of ip_queue_xmit() must make certain that the socket is locked. All of SCTP, TCP, DCCP, and L2TP now make sure this is the case. Therefore we can use the cork flow during output route lookup in ip_queue_xmit() when the socket route check fails. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ipv4: Use cork flow in inet_sk_{reselect_saddr,rebuild_header}()David S. Miller1-5/+7
These two functions must be invoked only when the socket is locked (because socket identity modifications are made non-atomically). Therefore we can use the cork flow for output route lookups. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ipv4: Lock socket and use cork flow in ip4_datagram_connect().David S. Miller1-8/+15
This is to make sure that an l2tp socket's inet cork flow is fully filled in, when it's encapsulated in UDP. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08l2tp: Use cork flow in l2tp_ip_connect() and l2tp_ip_sendmsg()David S. Miller1-7/+9
Now that the socket is consistently locked in these two routines, this transformation is legal. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08l2tp: Fix locking in l2tp_core.cDavid S. Miller1-0/+8
l2tp_xmit_skb() must take the socket lock. It makes use of ip_queue_xmit() which expects to execute in a socket atomic context. Since we execute this function in software interrupts, we cannot use the usual lock_sock()/release_sock() sequence, instead we have to use bh_lock_sock() and see if a user has the socket locked, and if so drop the packet. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08l2tp: Fix locking in l2tp_ip.cDavid S. Miller1-4/+15
Both l2tp_ip_connect() and l2tp_ip_sendmsg() must take the socket lock. They both modify socket state non-atomically, and in particular l2tp_ip_sendmsg() increments socket private counters without using atomic operations. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08tcp: Use cork flow in tcp_v4_connect()David S. Miller1-6/+7
Since this is invoked from inet_stream_connect() the socket is locked and therefore this usage is safe. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08dccp: Use cork flow in dccp_v4_connect()David S. Miller1-5/+6
Since this is invoked from inet_stream_connect() the socket is locked and therefore this usage is safe. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08ethtool: remove phys_id from ethtool_opsStephen Hemminger2-12/+1
After that all the upstream kernel drivers now use phys_id, and the old ethtool_ops interface (phys_id) can be removed. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08batman-adv: remove duplicate code from function is_bidirectional_neigh()Daniele Furlan1-49/+25
In function is_bidirectional_neigh the code that find out the one hop neighbor is duplicated. Signed-off-by: Daniele Furlan <daniele.furlan@gmail.com> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-08batman-adv: Remove multiline comments from line endingSven Eckelmann4-28/+29
It is slightly irritating that comments after a long line span over multiple lines without any code. It is easier to put them before the actual code and reduce the number of lines which the eye has to read. Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-08batman-adv: rename everything from *hna* into *tt* (translation table)Antonio Quartulli19-330/+332
To be coherent, all the functions/variables/constants have been renamed to the TranslationTable style Signed-off-by: Antonio Quartulli <ordex@autistici.org> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-08batman-adv: Fix refcount imbalance in find_routerMarek Lindner1-5/+9
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-08batman-adv: Avoid deadlock between rtnl_lock and s_activeSven Eckelmann1-9/+9
The hard_if_event is called by the notifier with rtnl_lock and tries to remove sysfs entries when a NETDEV_UNREGISTER event is received. This will automatically take the s_active lock. The s_active lock is also used when a new interface is added to a meshif through sysfs. In that situation we cannot wait for the rntl_lock before creating the actual batman-adv interface to prevent a deadlock. It is still possible to try to get the rtnl_lock and immediately abort the current operation when the trylock call failed. Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-08batman-adv: Remove unnecessary hardif_list_lockSven Eckelmann4-24/+13
hardif_list_lock is unneccessary because we already ensure that no multiple admin operations can take place through rtnl_lock. hardif_list_lock only adds additional overhead and complexity. Critical functions now check whether they are called with rtnl_lock using ASSERT_RTNL. It indirectly fixes the problem that orig_hash_del_if() expects that only one interface is deleted from hardif_list at a time, but hardif_remove_interfaces() removes all at once and then calls orig_hash_del_if(). Reported-by: Linus Lüssing <linus.luessing@web.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-08batman-adv: multi vlan support for bridge loop detectionMarek Lindner3-113/+298
The bridge loop detection for batman-adv allows the bat0 interface to be bridged into an ethernet segment which other batman-adv nodes are connected to. In order to also allow multiple VLANs on top of the bat0 interface to be bridged into the ethernet segment this patch extends the aforementioned bridge loop detection. Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-08batman-adv: remove misplaced commentMarek Lindner1-2/+0
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de> Signed-off-by: Sven Eckelmann <sven@narfation.org>
2011-05-07Merge branch 'master' of ↵David S. Miller7-96/+100
master.kernel.org:/pub/scm/linux/kernel/git/jkirsher/net-next-2.6
2011-05-07hamachi: Put back RX_CHECKSUMDavid S. Miller1-0/+1
I deleted it by mistake in the TX_CHECKSUM removal commit. Reported-by: Michał Mirosław <mirqus@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-07ixgbe: add ethtool counters for OS2BMCEmil Tantilov3-1/+18
OS2BMC registers are available for X540. This patch adds ethtool counters based on those registers. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07ixgbe: add rxhash supportEmil Tantilov2-2/+19
feed RSS hash into skb->rxhash Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Evan Swanson <evan.swanson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07igb: convert to ethtool set_phys_idJeff Kirsher1-18/+19
Based on patch from Stephen Hemminger. Convert igb driver to use new set_phys_id ethtool interface. CC: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07e1000: convert to set_phys_idJeff Kirsher2-37/+16
Based on the original patch from Stephen Hemminger. Convert to new LED control infrastucture and remove no longer necessary bits. CC: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-07e100: implemenet set_phys_idJeff Kirsher1-38/+28
Based on the original patch from Stephen Hemminger. Implement set_phys_id to control LED. CC: Stephen Hemminger <shemminger@vyatta.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-05-06ipv4: Initialize cork->opt using NULL not 0.David S. Miller1-1/+1
Noticed by Joe Perches. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-06ipv4: Initialize on-stack cork more efficiently.David S. Miller1-1/+4
ip_setup_cork() explicitly initializes every member of inet_cork except flags, addr, and opt. So we can simply set those three members to zero instead of using a memset() via an empty struct assignment. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-05-06inet: Decrease overhead of on-stack inet_cork.David S. Miller5-33/+41
When we fast path datagram sends to avoid locking by putting the inet_cork on the stack we use up lots of space that isn't necessary. This is because inet_cork contains a "struct flowi" which isn't used in these code paths. Split inet_cork to two parts, "inet_cork" and "inet_cork_full". Only the latter of which has the "struct flowi" and is what is stored in inet_sock. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2011-05-06hamachi: Delete TX checksumming code commented out since 1999David S. Miller1-79/+0
TX checksumming support has been ifdef commented out of this driver for more than 10 years, and it makes references to aspects of the IPv4 stack from back then as well. If someone has one of these rare cards and wants to properly resurrect TX checksumming support, they can still get at this code in the version control history. Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05Merge branch 'master' of ↵David S. Miller28-66/+170
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tg3.c
2011-05-05Merge branch 'for-davem' of ↵David S. Miller244-6490/+12283
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2011-05-05net: Add sendmmsg socket system callAnton Blanchard16-52/+192
This patch adds a multiple message send syscall and is the send version of the existing recvmmsg syscall. This is heavily based on the patch by Arnaldo that added recvmmsg. I wrote a microbenchmark to test the performance gains of using this new syscall: http://ozlabs.org/~anton/junkcode/sendmmsg_test.c The test was run on a ppc64 box with a 10 Gbit network card. The benchmark can send both UDP and RAW ethernet packets. 64B UDP batch pkts/sec 1 804570 2 872800 (+ 8 %) 4 916556 (+14 %) 8 939712 (+17 %) 16 952688 (+18 %) 32 956448 (+19 %) 64 964800 (+20 %) 64B raw socket batch pkts/sec 1 1201449 2 1350028 (+12 %) 4 1461416 (+22 %) 8 1513080 (+26 %) 16 1541216 (+28 %) 32 1553440 (+29 %) 64 1557888 (+30 %) We see a 20% improvement in throughput on UDP send and 30% on raw socket send. [ Add sparc syscall entries. -DaveM ] Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05can: fix SJA1000 dlc for RTR packetsKurt Van Dijck1-1/+1
RTR frames do have a valid data length code on CAN. The driver for SJA1000 did not handle that situation properly. Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05net: call dev_alloc_name from register_netdeviceJiri Pirko20-134/+12
Force dev_alloc_name() to be called from register_netdevice() by dev_get_valid_name(). That allows to remove multiple explicit dev_alloc_name() calls. The possibility to call dev_alloc_name in advance remains. This also fixes veth creation regresion caused by 84c49d8c3e4abefb0a41a77b25aa37ebe8d6b743 Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: function descriptions format fixedDmitry Kravkov6-266/+194
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: update year to 2011 and version to 1.62.12-0Dmitry Kravkov15-17/+17
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: improve memory handling, low memory recovery flowsDmitry Kravkov5-276/+449
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-05bnx2x: Do storage mac address validation for SF mode.Dmitry Kravkov1-16/+16
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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