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2010-12-20net_sched: sch_sfq: fix allot handlingEric Dumazet1-12/+8
When deploying SFQ/IFB here at work, I found the allot management was pretty wrong in sfq, even changing allot from short to int... We should init allot for each new flow, not using a previous value found in slot. Before patch, I saw bursts of several packets per flow, apparently denying the default "quantum 1514" limit I had on my SFQ class. class sfq 11:1 parent 11: (dropped 0, overlimits 0 requeues 0) backlog 0b 7p requeues 0 allot 11546 class sfq 11:46 parent 11: (dropped 0, overlimits 0 requeues 0) backlog 0b 1p requeues 0 allot -23873 class sfq 11:78 parent 11: (dropped 0, overlimits 0 requeues 0) backlog 0b 5p requeues 0 allot 11393 After patch, better fairness among each flow, allot limit being respected, allot is positive : class sfq 11:e parent 11: (dropped 0, overlimits 0 requeues 86) backlog 0b 3p requeues 86 allot 596 class sfq 11:94 parent 11: (dropped 0, overlimits 0 requeues 0) backlog 0b 3p requeues 0 allot 1468 class sfq 11:a4 parent 11: (dropped 0, overlimits 0 requeues 0) backlog 0b 4p requeues 0 allot 650 class sfq 11:bb parent 11: (dropped 0, overlimits 0 requeues 0) backlog 0b 3p requeues 0 allot 596 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20net_sched: sch_sfq: add backlog info in sfq_dump_class_stats()Eric Dumazet1-1/+6
We currently return for each active SFQ slot the number of packets in queue. We can also give number of bytes accounted for these packets. tc -s class show dev ifb0 Before patch : class sfq 11:3d9 parent 11: (dropped 0, overlimits 0 requeues 0) backlog 0b 3p requeues 0 allot 1266 After patch : class sfq 11:3e4 parent 11: (dropped 0, overlimits 0 requeues 0) backlog 4380b 3p requeues 0 allot 1212 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20vmxnet3: locking problems in xmitDan Carpenter1-1/+3
There were several paths that didn't release their locks. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Bhavesh Davda <bhavesh@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20typhoon: memory corruption in typhoon_get_drvinfo()Dan Carpenter1-1/+0
info->version only has space for 32 characters but my UTS_RELEASE is "2.6.37-rc6-next-20101217-05817-ge935fc8-dirty" so it doesn't fit. This is supposed to be the version of the driver, not the kernel version. This driver doesn't have a version so lets just leave it blank. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20net: Add USB PID for new MOSCHIP USB ethernet controller MCS7832 variantAndreas Mohr1-2/+10
Due to active notification of the new MCS7832 version by the manufacturer (Mr. Milton; thanks!) -- quote: "functionality same as MCS7830", I'm now submitting this patch (on -rc6), intended for networking.git and -stable. - add MCS7832 USB PID to be able to support this new device variant, too - add related descriptions Signed-off-by: Andreas Mohr <andi@lisas.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20ipv4: Flush per-ns routing cache more sanely.David S. Miller3-42/+30
Flush the routing cache only of entries that match the network namespace in which the purge event occurred. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
2010-12-20ehea: Fixing some message levelBreno Leitao1-2/+2
Currently there are some info message that is set as error, and an error message that is set as debug. This patch just fixes it. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20batman-adv: Return hna count on local buffer fillSven Eckelmann1-1/+1
hna_local_fill_buffer must return the number of added hna entries and not the last checked hash bucket. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20pktgen: Remove unnecessary prefix from pr_<level>Joe Perches1-2/+1
Remove "pktgen: " prefix string from one pr_info. pr_fmt adds it, so this is a duplicate. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20net_sched: always clone skbsChangli Gao1-5/+1
Pawel reported a panic related to handling shared skbs in ixgbe incorrectly. So we need to revert my previous patch to work around this bug. Instead of reverting the patch completely, I just revert the essential lines, so we can add the previous optimization back more easily in future. commit 3511c9132f8b1e1b5634e41a3331c44b0c13be70 Author: Changli Gao <xiaosuo@gmail.com> Date: Sat Oct 16 13:04:08 2010 +0000 net_sched: remove the unused parameter of qdisc_create_dflt() Reported-by: Pawel Staszewski <pstaszewski@itcare.pl> Signed-off-by: Changli Gao <xiaosuo@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20net: kill unused macrosShan Wei8-10/+0
These macros never be used, so remove them. Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20vxge: add missing flush of reset_taskTejun Heo1-0/+2
Commit 6e07ebd84 (drivers/net: remove unnecessary flush_scheduled_work() calls) incorrectly removed the flush call without replacing it with the appropriate work specific operation. Fix it by flushing vdev->reset_task explicitly. Pointed out by Jon Mason. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Jon Mason <jon.mason@exar.com> Acked-by: Jon Mason <jon.mason@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20net: increase skb->users instead of skb_clone()Changli Gao1-10/+20
In dev_queue_xmit_nit(), we have to clone skbs as we need to mangle skbs, however, we don't need to clone skbs for all the packet_types. Except for the first packet_type, we increase skb->users instead of skb_clone(). Signed-off-by: Changli Gao <xiaosuo@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20ifb: use netif_receive_skb() instead of netif_rx()Eric Dumazet1-1/+1
In ri_tasklet(), we run from softirq, so can directly handle packet through netif_receive_skb() instead of netif_rx(). There is no risk of recursion. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-20ipv6: Fragment locally generated tunnel-mode IPSec6 packets as needed.David Stevens3-11/+27
This patch modifies IPsec6 to fragment IPv6 packets that are locally generated as needed. This version of the patch only fragments in tunnel mode, so that fragment headers will not be obscured by ESP in transport mode. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-19ipv6: remove duplicate neigh_ifdownstephen hemminger1-1/+0
When device is being set to down, neigh_ifdown was being called twice. Once from addrconf notifier and once from ndisc notifier. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-19ipv6: fib6_ifdown cleanupstephen hemminger1-4/+4
Remove (unnecessary) casts to make code cleaner. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-17netlink: fix gcc -Wconversion compilation warningDmitry V. Levin1-1/+1
$ cat << EOF | gcc -Wconversion -xc -S -o/dev/null - unsigned f(void) {return NLMSG_HDRLEN;} EOF <stdin>: In function 'f': <stdin>:3:26: warning: negative integer implicitly converted to unsigned type Signed-off-by: Dmitry V. Levin <ldv@altlinux.org> Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-17asix: add USB ID for Logitec LAN-GTJ U2AArnaud Ebalard1-0/+4
Logitec LAN-GTJ U2A (http://www.pro.logitec.co.jp/pro/g/gLAN-GTJU2A/) USB 2.0 10/10/1000 Ethernet adapter is based on ASIX AX88178 chipset. This patch adds missing USB ID for the device. Signed-off-by: Arnaud Ebalard <arno@natisbad.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-17qlcnic: reset pci function unconditionally during probeRajesh Borundia2-6/+3
Some boot code drivers dont have cleanup routine, so pci function remains in unknown state prior to driver load. So during driver load issue FLR unconditionally. Update driver version to 5.0.14. Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-17qlcnic: fix ocm window register offset calculationRajesh Borundia1-1/+1
OCM window register offset was calculated incorrectly for pci function greater than zero. Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-17qlcnic: fix LED test when interface is down.Sucheta Chakraborty2-5/+23
When interface is down, create temporary context to config LED. Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-17tehuti: Firmware filename is tehuti/bdx.binBen Hutchings1-2/+2
My conversion of tehuti to use request_firmware() was confused about the filename of the firmware blob. Change the driver to match the blob. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Andy Gospodarek <andy@greyhouse.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-17ipv6: don't flush routes when setting loopback downstephen hemminger1-1/+3
When loopback device is being brought down, then keep the route table entries because they are special. The entries in the local table for linklocal routes and ::1 address should not be purged. This is a sub optimal solution to the problem and should be replaced by a better fix in future. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16ifb: fix a lockdep splatEric Dumazet1-1/+1
After recent ifb changes, we must use lockless __skb_dequeue() since lock is not anymore initialized. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Jamal Hadi Salim <hadi@cyberus.ca> Cc: Changli Gao <xiaosuo@gmail.com> Acked-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16sctp: fix the return value of getting the sctp partial delivery pointWei Yongjun1-1/+1
Get the sctp partial delivery point using SCTP_PARTIAL_DELIVERY_POINT socket option should return 0 if success, not -ENOTSUPP. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Acked-by: Vlad Yasevich <vladislav.yasevich@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: Fix drivers advertising HW_CSUM feature to use csum_startMichał Mirosław14-15/+15
Some drivers are using skb_transport_offset(skb) instead of skb->csum_start for NETIF_F_HW_CSUM offload. This does not matter now, but if someone implements checksumming of encapsulated packets then this will break silently. TSO output paths are left as they are, since they are for IP+TCP only (might be worth converting though). Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: Use skb_checksum_start_offset()Michał Mirosław9-16/+13
Replace skb->csum_start - skb_headroom(skb) with skb_checksum_start_offset(). Note for usb/smsc95xx: skb->data - skb->head == skb_headroom(skb). Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: Introduce skb_checksum_start_offset()Michał Mirosław1-0/+5
Introduce skb_checksum_start_offset() to replace repetitive calculation. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net/veth: Fix packet checksummingMichał Mirosław1-1/+3
We can't change ip_summed from CHECKSUM_PARTIAL to CHECKSUM_NONE or CHECKSUM_UNNECESSARY because checksum in packet's headers is not valid and will cause invalid checksum when frame is forwarded. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16bridge: fix IPv6 queries for bridge multicast snoopingDavid Stevens1-1/+1
This patch fixes a missing ntohs() for bridge IPv6 multicast snooping. Signed-off-by: David L Stevens <dlstevens@us.ibm.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: fix nulls list corruptions in sk_prot_allocOctavian Purdila6-12/+42
Special care is taken inside sk_port_alloc to avoid overwriting skc_node/skc_nulls_node. We should also avoid overwriting skc_bind_node/skc_portaddr_node. The patch fixes the following crash: BUG: unable to handle kernel paging request at fffffffffffffff0 IP: [<ffffffff812ec6dd>] udp4_lib_lookup2+0xad/0x370 [<ffffffff812ecc22>] __udp4_lib_lookup+0x282/0x360 [<ffffffff812ed63e>] __udp4_lib_rcv+0x31e/0x700 [<ffffffff812bba45>] ? ip_local_deliver_finish+0x65/0x190 [<ffffffff812bbbf8>] ? ip_local_deliver+0x88/0xa0 [<ffffffff812eda35>] udp_rcv+0x15/0x20 [<ffffffff812bba45>] ip_local_deliver_finish+0x65/0x190 [<ffffffff812bbbf8>] ip_local_deliver+0x88/0xa0 [<ffffffff812bb2cd>] ip_rcv_finish+0x32d/0x6f0 [<ffffffff8128c14c>] ? netif_receive_skb+0x99c/0x11c0 [<ffffffff812bb94b>] ip_rcv+0x2bb/0x350 [<ffffffff8128c14c>] netif_receive_skb+0x99c/0x11c0 Signed-off-by: Leonard Crestez <lcrestez@ixiacom.com> Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16be2net: use mutex instead of spin lock for mbox_lockIvan Vecera3-32/+47
Since the mbox polling uses the schedule_timeout, the mbox_lock should be a mutex and not a spin lock. The commit f25b03a replaced udelay() with schedule_timeout() but didn't change mbox_lock to semaphore or mutex. Signed-off-by: Ivan Vecera <ivecera@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16tcp: relax tcp_paws_check()Eric Dumazet1-1/+7
Some windows versions have wrong RFC1323 implementations, with SYN and SYNACKS messages containing zero tcp timestamps. We relaxed in commit fc1ad92dfc4e363 the passive connection case (Windows connects to a linux machine), but the reverse case (linux connects to a Windows machine) has an analogue problem when tsvals from windows machine are 'negative' (high order bit set) : PAWS triggers and we drops incoming messages. Fix this by making zero ts_recent value special, allowing frame to be processed. Based on a report and initial patch from Dmitiy Balakin Bugzilla reference : https://bugzilla.kernel.org/show_bug.cgi?id=24842 Reported-by: dmitriy.balakin@nicneiron.ru Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: factorize sync-rcu call in unregister_netdevice_manyOctavian Purdila3-49/+99
Add dev_close_many and dev_deactivate_many to factorize another sync-rcu operation on the netdevice unregister path. $ modprobe dummy numdummies=10000 $ ip link set dev dummy* up $ time rmmod dummy Without the patch With the patch real 0m 24.63s real 0m 5.15s user 0m 0.00s user 0m 0.00s sys 0m 6.05s sys 0m 5.14s Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: Add batman-adv meshing protocolSven Eckelmann46-0/+10278
B.A.T.M.A.N. (better approach to mobile ad-hoc networking) is a routing protocol for multi-hop ad-hoc mesh networks. The networks may be wired or wireless. See http://www.open-mesh.org/ for more information and user space tools. Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16net: use NUMA_NO_NODE instead of the magic number -1Changli Gao3-3/+4
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16bonding: add the debugfs interface to see RLB hash tableTaku Izumi1-0/+50
This patch provices the debugfs interface to see RLB hash table like the following: # cat /sys/kernel/debug/bonding/bond0/rlb_hash_table SourceIP DestinationIP Destination MAC DEV 10.124.196.205 10.124.196.205 ff:ff:ff:ff:ff:ff eth4 10.124.196.205 10.124.196.81 00:19:99:XX:XX:XX eth3 10.124.196.205 10.124.196.1 00:21:d8:XX:XX:XX eth0 This is helpful to check if the receive load balancing works as expected. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16bonding: migrate some macros from bond_alb.c to bond_alb.hTaku Izumi2-36/+38
This patch simply migrates some macros from bond_alb.c to bond_alb.h. Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: NUMA-aware Tx queue allocationsDimitris Michailidis1-7/+10
Allocate Tx queue memory on the node indicated by the new netdev_queue_numa_node_read. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: extend VPD parsingDimitris Michailidis1-20/+21
Current code parses the VPD RO section for keywords but makes static assumptions about the location of the section. Remove them and parse the VPD to find it. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: add const to static arraysJoe Perches1-24/+24
Patch originally from Joe Perches, unmodified. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: remove a bitmapDimitris Michailidis2-3/+1
The driver keeps a bitmap of the netdevs it registered so it knows what to unregister later. Remove that and look at reg_state instead. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: remove the name field from the adapter structureDimitris Michailidis2-23/+15
Remove a field the driver uses to keep track of the name of the first netdev it manages to register. Do this by changing the registration loop to stop the first time it fails so the first registered device is trivial to tell. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: correct formatting of MSI-X interrupt namesDimitris Michailidis1-14/+7
The last byte of the buffer for MSI-X names could not be used due to a bogus -1. Also do not explicitly clear the last byte, snprintf will do the right thing. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: allocate more space for MSI-X interrupt namesDimitris Michailidis1-1/+1
Currently MSI-X names for netdevs with long names are truncated in /proc/interrupts due to insufficient space. Use IFNAMSIZ to size the needed space. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: print port information after registering each netdevDimitris Michailidis1-32/+22
Print information about each port when its netdev is registered instead of looping separately over the ports at the end. The bulk of this patch is due to indentation change. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: distinguish between 1-lane KR/KX and 4-lane KR/KX/KX4 portsDimitris Michailidis2-2/+8
And fix the supported flags ethtool reports for the two cases. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: set the number of queues before device registrationDimitris Michailidis1-5/+5
The number of queues is known early, move the calls to netif_set_real_num_[rt]x_queues before register_netdev. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-12-16cxgb4: do not read the clock frequency from VPDDimitris Michailidis1-3/+1
No need to read the clock frequency from VPD, we already get it a bit later from FW, after any potential adjustments. Signed-off-by: Dimitris Michailidis <dm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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