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2014-11-07udp: Increment UDP_MIB_IGNOREDMULTI for arriving unmatched multicastsRick Jones5-6/+20
As NIC multicast filtering isn't perfect, and some platforms are quite content to spew broadcasts, we should not trigger an event for skb:kfree_skb when we do not have a match for such an incoming datagram. We do though want to avoid sweeping the matter under the rug entirely, so increment a suitable statistic. This incorporates feedback from David L. Stevens, Karl Neiss and Eric Dumazet. V3 - use bool per David Miller Signed-off-by: Rick Jones <rick.jones2@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07cdc-ether: implement MULTICAST flag on the deviceOliver Neukum1-9/+10
Olivier having laid the groundwork this patch transmits the multicast flag to the device to save some bus traffic. Signed-off-by: Oliver Neukum <oneukum@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07uapi: resort Kbuild entriesstephen hemminger1-44/+44
The entries in the Kbuild files are incorrectly sorted. Matters for aesthetics only. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07stmmac: platform: fix sparse warningsAndy Shevchenko7-6/+39
This patch fixes the following sparse warnings. One is fixed by casting return value to a return type of the function. The others by creating a specific stmmac_platform.h which provides the bits related to the platform driver. drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:59:29: warning: incorrect type in return expression (different address spaces) drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:59:29: expected void * drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:59:29: got void [noderef] <asn:2>*reg drivers/net/ethernet/stmicro/stmmac/dwmac-meson.c:64:29: warning: symbol 'meson6_dwmac_data' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c:354:29: warning: symbol 'stih4xx_dwmac_data' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c:361:29: warning: symbol 'stid127_dwmac_data' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c:133:29: warning: symbol 'sun7i_gmac_data' was not declared. Should it be static? Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07stmmac: remove custom implementation of print_hex_dump()Andy Shevchenko1-8/+2
There is a kernel helper to dump buffers in a hexdecimal format. This patch substitutes the open coded function by calling that helper. The output is slightly changed: - no lead space - ASCII part will be printed along with the dump - offset is longer than 3 characters (now 8) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07net: Kill skb_copy_datagram_const_iovecHerbert Xu2-92/+0
Now that both macvtap and tun are using skb_copy_datagram_iter, we can kill the abomination that is skb_copy_datagram_const_iovec. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07macvtap: Use iovec iteratorsHerbert Xu1-25/+21
This patch removes the use of skb_copy_datagram_const_iovec in favour of the iovec iterator-based skb_copy_datagram_iter. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07tun: Use iovec iteratorsHerbert Xu1-35/+30
This patch removes the use of skb_copy_datagram_const_iovec in favour of the iovec iterator-based skb_copy_datagram_iter. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-07inet: Add skb_copy_datagram_iterHerbert Xu2-0/+90
This patch adds skb_copy_datagram_iter, which is identical to skb_copy_datagram_iovec except that it operates on iov_iter instead of iovec. Eventually all users of skb_copy_datagram_iovec should switch over to iov_iter and then we can remove skb_copy_datagram_iovec. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06vxlan: Fix to enable UDP checksums on interfaceTom Herbert1-0/+3
Add definition to vxlan nla_policy for UDP checksum. This is necessary to enable UDP checksums on VXLAN. In some instances, enabling UDP checksums can improve performance on receive for devices that return legacy checksum-unnecessary for UDP/IP. Also, UDP checksum provides some protection against VNI corruption. Testing: Ran 200 instances of TCP_STREAM and TCP_RR on bnx2x. TCP_STREAM IPv4, without UDP checksums 14.41% TX CPU utilization 25.71% RX CPU utilization 9083.4 Mbps IPv4, with UDP checksums 13.99% TX CPU utilization 13.40% RX CPU utilization 9095.65 Mbps TCP_RR IPv4, without UDP checksums 94.08% TX CPU utilization 156/248/462 90/95/99% latencies 1.12743e+06 tps IPv4, with UDP checksums 94.43% TX CPU utilization 158/250/462 90/95/99% latencies 1.13345e+06 tps Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06amd-xgbe: Check for complete packet on skb allocation errorLendacky, Thomas1-2/+2
If the skb allocation fails during receive processing, the driver would continue reading descriptors without first determining if there were any more descriptors for the current packet. Update the code to check whether more descriptors are associated with the current packet or whether to move on to the next descriptor as a new packet. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06amd-xgbe: Free channel/ring structures laterLendacky, Thomas1-3/+3
The channel structure is freed before freeing the per channel interrupts resulting in a kernel oops. Move the call to free the channel structure to after the freeing of the per channel interrupts. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06netxen: Fix link event handling.Manish Chopra1-1/+2
o Poll for the link events only if firmware doesn't have capability to notify the driver for the link events. Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06enic: update desc properly in rx_copybreakGovindarajulu Varadarajan1-12/+2
When we reuse the rx buffer, we need to update the desc. If not hardware sees stale value. In the following crash, when mtu is changed, hardware sees old rx buffer value and crashes on skb_put. Fix this by using enic_queue_rq_desc helper function which updates the necessary desc. [ 64.657376] skbuff: skb_over_panic: text:ffffffffa041f55d len:9010 put:9010 head:ffff8800d3ca9fc0 data:ffff8800d3caa000 tail:0x2372 end:0x640 dev:enp0s3 [ 64.659965] ------------[ cut here ]------------ [ 64.661322] kernel BUG at net/core/skbuff.c:100! [ 64.662644] invalid opcode: 0000 [#1] PREEMPT SMP [ 64.664001] Modules linked in: rpcsec_gss_krb5 auth_rpcgss oid_registry nfsv4 cirrus ttm drm_kms_helper drm enic psmouse microcode evdev serio_raw syscopyarea sysfillrect sysimgblt i2c_piix4 i2c_core pcspkr nfs lockd grace sunrpc fscache ext4 crc16 mbcache jbd2 sd_mod ata_generic virtio_balloon ata_piix libata uhci_hcd virtio_pci virtio_ring usbcore usb_common virtio scsi_mod [ 64.664834] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.17.0-netnext-10335-g942396b-dirty #273 [ 64.664834] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 64.664834] task: ffffffff81a1d580 ti: ffffffff81a00000 task.ti: ffffffff81a00000 [ 64.664834] RIP: 0010:[<ffffffff81392cf1>] [<ffffffff81392cf1>] skb_panic+0x61/0x70 [ 64.664834] RSP: 0018:ffff880210603d48 EFLAGS: 00010292 [ 64.664834] RAX: 000000000000008c RBX: ffff88020b0f6930 RCX: 0000000000000000 [ 64.664834] RDX: 000000000000008c RSI: ffffffff8178b288 RDI: 00000000ffffffff [ 64.664834] RBP: ffff880210603d68 R08: 0000000000000001 R09: 0000000000000001 [ 64.664834] R10: 00000000000005ce R11: 0000000000000001 R12: ffff88020b1f0b40 [ 64.664834] R13: 000000000000a332 R14: ffff880209a1a000 R15: 0000000000000001 [ 64.664834] FS: 0000000000000000(0000) GS:ffff880210600000(0000) knlGS:0000000000000000 [ 64.664834] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 64.664834] CR2: 00007f6752935e48 CR3: 0000000035743000 CR4: 00000000000006f0 [ 64.664834] Stack: [ 64.664834] ffff8800d3caa000 0000000000002372 0000000000000640 ffff88020b1f0000 [ 64.664834] ffff880210603d78 ffffffff81392d54 ffff880210603e08 ffffffffa041f55d [ 64.664834] 0000000000000296 ffffffff00000000 00008e7e00008e7e ffff880200002332 [ 64.664834] Call Trace: [ 64.664834] <IRQ> [ 64.664834] [ 64.664834] [<ffffffff81392d54>] skb_put+0x54/0x60 [ 64.664834] [<ffffffffa041f55d>] enic_rq_service.constprop.47+0x3ad/0x730 [enic] [ 64.664834] [<ffffffffa041fa79>] enic_poll_msix_rq+0x199/0x370 [enic] [ 64.664834] [<ffffffff813a5499>] net_rx_action+0x139/0x210 [ 64.664834] [<ffffffff81290db3>] ? __this_cpu_preempt_check+0x13/0x20 [ 64.664834] [<ffffffff8106110e>] __do_softirq+0x14e/0x280 [ 64.664834] [<ffffffff8106152e>] irq_exit+0x8e/0xb0 [ 64.664834] [<ffffffff8100fd21>] do_IRQ+0x61/0x100 [ 64.664834] [<ffffffff814a2bf2>] common_interrupt+0x72/0x72 fixes: a03bb56e67c357980dae886683733dab5583dc14 ("enic: implement rx_copybreak") Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06enic: handle error condition properly in enic_rq_indicate_bufGovindarajulu Varadarajan1-0/+6
In case of error in rx path, we free the buf->os_buf but we do not make it NULL. In next iteration we use the skb which is already freed. This causes the following crash. [ 886.154772] general protection fault: 0000 [#1] PREEMPT SMP [ 886.154851] Modules linked in: rpcsec_gss_krb5 auth_rpcgss oid_registry nfsv4 microcode evdev cirrus ttm drm_kms_helper drm enic syscopyarea sysfillrect sysimgblt psmouse i2c_piix4 serio_raw pcspkr i2c_core nfs lockd grace sunrpc fscache ext4 crc16 mbcache jbd2 sd_mod crc_t10dif crct10dif_common ata_generic ata_piix virtio_balloon libata scsi_mod uhci_hcd usbcore virtio_pci virtio_ring virtio usb_common [ 886.155199] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 3.17.0-netnext-05668-g876bc7f #272 [ 886.155263] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 886.155304] task: ffffffff81a1d580 ti: ffffffff81a00000 task.ti: ffffffff81a00000 [ 886.155356] RIP: 0010:[<ffffffff81384030>] [<ffffffff81384030>] kfree_skb_list+0x10/0x30 [ 886.155418] RSP: 0018:ffff880210603d48 EFLAGS: 00010206 [ 886.155456] RAX: 0000000000000020 RBX: 0000000000000000 RCX: 0000000000000000 [ 886.155504] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 004500084e000017 [ 886.155553] RBP: ffff880210603d50 R08: 00000000fe13d1b6 R09: 0000000000000001 [ 886.155601] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880209ff2f00 [ 886.155650] R13: ffff88020ac0fe40 R14: ffff880209ff2f00 R15: ffff8800da8e3a80 [ 886.155699] FS: 0000000000000000(0000) GS:ffff880210600000(0000) knlGS:0000000000000000 [ 886.155774] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 886.155814] CR2: 00007f0e0c925000 CR3: 0000000035e8b000 CR4: 00000000000006f0 [ 886.155865] Stack: [ 886.155882] 0000000000000000 ffff880210603d78 ffffffff81383f79 ffff880209ff2f00 [ 886.155942] ffff88020b0c0b40 000000000000c000 ffff880210603d90 ffffffff81383faf [ 886.156001] ffff880209ff2f00 ffff880210603da8 ffffffff8138406d ffff88020b1b08c0 [ 886.156061] Call Trace: [ 886.156080] <IRQ> [ 886.156095] [ 886.156112] [<ffffffff81383f79>] skb_release_data+0xa9/0xc0 [ 886.157656] [<ffffffff81383faf>] skb_release_all+0x1f/0x30 [ 886.159195] [<ffffffff8138406d>] consume_skb+0x1d/0x40 [ 886.160719] [<ffffffff813942e5>] __dev_kfree_skb_any+0x35/0x40 [ 886.162224] [<ffffffffa02dc1d5>] enic_rq_service.constprop.47+0xe5/0x5a0 [enic] [ 886.163756] [<ffffffffa02dc829>] enic_poll_msix_rq+0x199/0x370 [enic] [ 886.164730] [<ffffffff81397e29>] net_rx_action+0x139/0x210 [ 886.164730] [<ffffffff8105fb2e>] __do_softirq+0x14e/0x280 [ 886.164730] [<ffffffff8105ff2e>] irq_exit+0x8e/0xb0 [ 886.164730] [<ffffffff8100fc1d>] do_IRQ+0x5d/0x100 [ 886.164730] [<ffffffff81496832>] common_interrupt+0x72/0x72 fixes: a03bb56e67c357980dae886683733dab5583dc14 ("enic: implement rx_copybreak") Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06net/mlx5_core: Fix race on driver loadEli Cohen1-2/+2
When events arrive at driver load, the event handler gets called even before the spinlock and list are initialized. Fix this by moving the initialization before EQs creation. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06net/mlx5_core: Fix race in create EQEli Cohen1-4/+3
After the EQ is created, it can possibly generate interrupts and the interrupt handler is referencing eq->dev. It is therefore required to set eq->dev before calling request_irq() so if an event is generated before request_irq() returns, we will have a valid eq->dev field. Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sunvnet: Return from vnet_napi_event() if no packets to readSowmini Varadhan1-3/+2
vnet_event_napi() may be called as part of the NAPI ->poll, to resume reading descriptor rings. When no data is available, descriptor ring state (e.g., rcv_nxt) needs to be reset carefully to stay in lock-step with ldc_read(). In the interest of simplicity, the best way to do this is to return from vnet_event_napi() when there are no more packets to read. The next trip through ldc_rx will correctly set up the dring state. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Tested-by: David Stevens <david.stevens@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sunvnet: Fix indentation in maybe_tx_wakeup()Sowmini Varadhan1-1/+1
remove redundant tab. Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com> Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06r8152: remove the definitions of the PIDhayeswang1-7/+3
The PIDs are only used in the id table, so the definitions are unnacessary. Remove them wouldn't have confusion. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06r8152: modify rtl_ops_inithayeswang1-51/+28
Replace using VID/PID with using tp->version to initialize the ops. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06r8152: move r8152b_get_versionhayeswang1-2/+1
Move r8152b_get_version() to the location before rtl_ops_init(). Then, the rtl_ops_init() could use tp->version. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sock.h: Remove unused NETDEBUG macroJoe Perches1-3/+0
It's unused now, just delete it. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06net: esp: Convert NETDEBUG to pr_infoJoe Perches2-10/+10
Commit 64ce207306de ("[NET]: Make NETDEBUG pure printk wrappers") originally had these NETDEBUG printks as always emitting. Commit a2a316fd068c ("[NET]: Replace CONFIG_NET_DEBUG with sysctl") added a net_msg_warn sysctl to these NETDEBUG uses. Convert these NETDEBUG uses to normal pr_info calls. This changes the output prefix from "ESP: " to include "IPSec: " for the ipv4 case and "IPv6: " for the ipv6 case. These output lines are now like the other messages in the files. Other miscellanea: Neaten the arithmetic spacing to be consistent with other arithmetic spacing in the files. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06net; ipv[46] - Remove 2 unnecessary NETDEBUG OOM messagesJoe Perches2-11/+7
These messages aren't useful as there's a generic dump_stack() on OOM. Neaten the comment and if test above the OOM by separating the assign in if into an allocation then if test. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06dsa: mv88e6171: Add support for mv88e6172Andrew Lunn2-4/+7
The mv88e6172 is very similar to the mv88e6171. So extend the mv88e6171 driver to support it. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06net: dsa: slave: Fix autoneg for phys on switch MDIO busAndrew Lunn1-2/+5
When the ports phys are connected to the switches internal MDIO bus, we need to connect the phy to the slave netdev, otherwise auto-negotiation etc, does not work. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sched: fix act file names in header commentJiri Pirko6-6/+6
Fixes: 4bba3925 ("[PKT_SCHED]: Prefix tc actions with act_") Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06net/9p: remove a comment about pref member which doesn't existRyo Munakata1-1/+0
Signed-off-by: Ryo Munakata <ryomnktml@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06drivers: net: cpsw: remove cpsw_ale_stop from cpsw_ale_destroyMugunthan V N1-1/+0
when cpsw is build as modulea and simple insert and removal of module creates a deadlock, due to delete timer. the timer is created and destroyed in cpsw_ale_start and cpsw_ale_stop which are from device open and close. root@am437x-evm:~# modprobe -r ti_cpsw [ 158.505333] INFO: trying to register non-static key. [ 158.510623] the code is fine but needs lockdep annotation. [ 158.516448] turning off the locking correctness validator. [ 158.522282] CPU: 0 PID: 1339 Comm: modprobe Not tainted 3.14.23-00445-gd41c88f #44 [ 158.530359] [<c0015380>] (unwind_backtrace) from [<c0012088>] (show_stack+0x10/0x14) [ 158.538603] [<c0012088>] (show_stack) from [<c054ad70>] (dump_stack+0x78/0x94) [ 158.546295] [<c054ad70>] (dump_stack) from [<c0088008>] (__lock_acquire+0x176c/0x1b74) [ 158.554711] [<c0088008>] (__lock_acquire) from [<c0088944>] (lock_acquire+0x9c/0x104) [ 158.563043] [<c0088944>] (lock_acquire) from [<c004e520>] (del_timer_sync+0x44/0xd8) [ 158.571289] [<c004e520>] (del_timer_sync) from [<bf2eac1c>] (cpsw_ale_destroy+0x10/0x3c [ti_cpsw]) [ 158.580821] [<bf2eac1c>] (cpsw_ale_destroy [ti_cpsw]) from [<bf2eb268>] (cpsw_remove+0x30/0xa0 [ti_cpsw]) [ 158.591000] [<bf2eb268>] (cpsw_remove [ti_cpsw]) from [<c035ef44>] (platform_drv_remove+0x18/0x1c) [ 158.600527] [<c035ef44>] (platform_drv_remove) from [<c035d8bc>] (__device_release_driver+0x70/0xc8) [ 158.610236] [<c035d8bc>] (__device_release_driver) from [<c035e0d4>] (driver_detach+0xb4/0xb8) [ 158.619386] [<c035e0d4>] (driver_detach) from [<c035d6e4>] (bus_remove_driver+0x4c/0x90) [ 158.627988] [<c035d6e4>] (bus_remove_driver) from [<c00af2a8>] (SyS_delete_module+0x10c/0x198) [ 158.637144] [<c00af2a8>] (SyS_delete_module) from [<c000e580>] (ret_fast_syscall+0x0/0x48) [ 179.524727] INFO: rcu_sched detected stalls on CPUs/tasks: {} (detected by 0, t=2102 jiffies, g=1487, c=1486, q=6) [ 179.535741] INFO: Stall ended before state dump start Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06net: mv643xx_eth: reclaim TX skbs only when released by the HWKarl Beldan1-8/+10
ATM, txq_reclaim will dequeue and free an skb for each tx desc released by the hw that has TX_LAST_DESC set. However, in case of TSO, each hw desc embedding the last part of a segment has TX_LAST_DESC set, losing the one-to-one 'last skb frag'/'TX_LAST_DESC set' correspondance, which causes data corruption. Fix this by checking TX_ENABLE_INTERRUPT instead of TX_LAST_DESC, and warn when trying to dequeue from an empty txq (which can be symptomatic of releasing skbs prematurely). Fixes: 3ae8f4e0b98 ('net: mv643xx_eth: Implement software TSO') Reported-by: Slawomir Gajzner <slawomir.gajzner@gmail.com> Reported-by: Julien D'Ascenzio <jdascenzio@yahoo.fr> Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> Cc: Ian Campbell <ijc@hellion.org.uk> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sfc: Add NIC type operations to replace direct calls from efx.c into siena_sriov.cShradha Shah7-8/+56
Also add dummy functions where required to avoid NULL pointer dereference. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sfc: Rename implementations in siena_sriov.c to have a 'siena' prefixShradha Shah6-141/+149
Patch in preparation for the upcoming EF10 sriov support. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sfc: Move the current VF state from efx_nic into siena_nic_dataShradha Shah5-52/+84
This patch series provides a base and cleanup for the upcoming EF10 SRIOV support. This patch moves the VF state into siena_nic_data as a basis to save the VF state based on nic type. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06xen-netback: remove unconditional __pskb_pull_tail() in guest Tx pathMalcolm Crossley1-14/+12
Unconditionally pulling 128 bytes into the linear area is not required for: - security: Every protocol demux starts with pskb_may_pull() to pull frag data into the linear area, if necessary, before looking at headers. - performance: Netback has already grant copied up-to 128 bytes from the first slot of a packet into the linear area. The first slot normally contain all the IPv4/IPv6 and TCP/UDP headers. The unconditional pull would often copy frag data unnecessarily. This is a performance problem when running on a version of Xen where grant unmap avoids TLB flushes for pages which are not accessed. TLB flushes can now be avoided for > 99% of unmaps (it was 0% before). Grant unmap TLB flush avoidance will be available in a future version of Xen (probably 4.6). Signed-off-by: Malcolm Crossley <malcolm.crossley@citrix.com> Signed-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06stmmac: pci: convert to use dev_* macrosAndy Shevchenko1-4/+4
Instead of pr_* macros let's use dev_* macros which provide device name. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06stmmac: pci: use managed resourcesAndy Shevchenko1-33/+10
Migrate pci driver to managed resources to reduce boilerplate error handling code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06stmmac: pci: convert to use dev_pm_opsAndy Shevchenko1-16/+11
Convert system PM callbacks to use dev_pm_ops. In addition remove the PCI calls related to a power state since the bus code cares about this already. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06stmmac: pci: use defined constant instead of magic numberAndy Shevchenko1-1/+1
The last standard PCI resource is defined as PCI_STD_RESOURCE_END. Thus, we could use it instead of plain integer. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06stmmac: fix sparse warningsAndy Shevchenko2-3/+6
This patch fixes the following sparse warnings. drivers/net/ethernet/stmicro/stmmac/enh_desc.c:381:30: warning: symbol 'enh_desc_ops' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/norm_desc.c:253:30: warning: symbol 'ndesc_ops' was not declared. Should it be static? drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c:141:33: warning: symbol 'stmmac_ptp' was not declared. Should it be static? There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Giuseppe CAVALLARO <peppe.cavallaro@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06ip6_tunnel: Add support for wildcard tunnel endpoints.Steffen Klassert1-1/+40
This patch adds support for tunnels with local or remote wildcard endpoints. With this we get a NBMA tunnel mode like we have it for ipv4 and sit tunnels. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06ipv6: Allow sending packets through tunnels with wildcard endpointsSteffen Klassert4-12/+26
Currently we need the IP6_TNL_F_CAP_XMIT capabiltiy to transmit packets through an ipv6 tunnel. This capability is set when the tunnel gets configured, based on the tunnel endpoint addresses. On tunnels with wildcard tunnel endpoints, we need to do the capabiltiy checking on a per packet basis like it is done in the receive path. This patch extends ip6_tnl_xmit_ctl() to take local and remote addresses as parameters to allow for per packet capabiltiy checking. Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-05openvswitch: Avoid NULL mask check while building maskPravin B Shelar1-54/+53
OVS does mask validation even if it does not need to convert netlink mask attributes to mask structure. ovs_nla_get_match() caller can pass NULL mask structure pointer if the caller does not need mask. Therefore NULL check is required in SW_FLOW_KEY* macros. Following patch does not convert mask netlink attributes if mask pointer is NULL, so we do not need these checks in SW_FLOW_KEY* macro. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Daniele Di Proietto <ddiproietto@vmware.com> Acked-by: Andy Zhou <azhou@nicira.com>
2014-11-05openvswitch: Refactor action alloc and copy api.Pravin B Shelar3-29/+21
There are two separate API to allocate and copy actions list. Anytime OVS needs to copy action list, it needs to call both functions. Following patch moves action allocation to copy function to avoid code duplication. Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
2014-11-05openvswitch: Move key_attr_size() to flow_netlink.h.Joe Stringer3-28/+37
flow-netlink has netlink related code. Signed-off-by: Joe Stringer <joestringer@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
2014-11-05openvswitch: Remove flow member from struct ovs_skb_cbLorand Jakab3-12/+9
The 'flow' memeber was chosen for removal because it's only used in ovs_execute_actions() we can pass it as argument to this function. Signed-off-by: Lorand Jakab <lojakab@cisco.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
2014-11-05openvswitch: Fix the type of struct ovs_key_nd nd_target field.Jarno Rajahalme1-3/+3
Should be the same as other IPv6 address fields. Current master produces sparse warnings without this change. Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
2014-11-05openvswitch: Drop packets when interdev is not upChunhe Li1-0/+5
If the internal device is not up, it should drop received packets. Sometimes it receive the broadcast or multicast packets, and the ip protocol stack will casue more cpu usage wasted. Signed-off-by: Chunhe Li <lichunhe@huawei.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
2014-11-05openvswitch: Refactor get_dp() function into multiple access APIs.Andy Zhou1-10/+21
Avoid recursive read_rcu_lock() by using the lighter weight get_dp_rcu() API. Add proper locking assertions to get_dp(). Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
2014-11-05openvswitch: Refactor ovs_flow_cmd_fill_info().Joe Stringer1-27/+66
Split up ovs_flow_cmd_fill_info() to make it easier to cache parts of a dump reply. This will be used to streamline flow_dump in a future patch. Signed-off-by: Joe Stringer <joestringer@nicira.com> Acked-by: Thomas Graf <tgraf@noironetworks.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
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