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2016-02-24net/mlx5e: Wake On LAN supportTariq Toukan3-1/+74
Implement set/get WOL by ethtool and added the needed device commands and structures to mlx5_ifc. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Rana Shahout <ranas@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5e: Implement DCBNL IEEE max rateTariq Toukan2-0/+12
Add support for DCBNL IEEE get/set max rate. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5: Introduce physical port TC/prio access functionsSaeed Mahameed3-1/+56
Add access functions to set and query a physical port TC groups and prio parameters. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5: Introduce physical port PFC access functionsAchiad Shochat1-0/+4
Add access functions to set and query a physical port PFC (Priority Flow Control) parameters. Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-24net/mlx5: Introduce a new header file for physical port functionsAchiad Shochat2-31/+69
All the device physical port access functions are implemented in the port.c file. We just extract the exposure of these functions from driver.h into a dedicated header file called port.h. Signed-off-by: Achiad Shochat <achiad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-23net: dsa: pass bridge down to driversVivien Didelot1-3/+2
Some DSA drivers may or may not support multiple software bridges on top of an hardware switch. It is more convenient for them to access the bridge's net_device for finer configuration. Removing the need to craft and access a bitmask also simplifies the code. This patch changes the signature of bridge related functions, update DSA drivers, and removes dsa_slave_br_port_mask. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Tested-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller52-1586/+1752
Conflicts: drivers/net/phy/bcm7xxx.c drivers/net/phy/marvell.c drivers/net/vxlan.c All three conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds6-1488/+1505
Pull networking fixes from David Miller: "Looks like a lot, but mostly driver fixes scattered all over as usual. Of note: 1) Add conditional sched in nf conntrack in cleanup to avoid NMI watchdogs. From Florian Westphal. 2) Fix deadlock in nfnetlink cttimeout, also from Floarian. 3) Fix handling of slaves in bonding ARP monitor validation, from Jay Vosburgh. 4) Callers of ip_cmsg_send() are responsible for freeing IP options, some were not doing so. Fix from Eric Dumazet. 5) Fix per-cpu bugs in mvneta driver, from Gregory CLEMENT. 6) Fix vlan handling in mv88e6xxx DSA driver, from Vivien Didelot. 7) bcm7xxx PHY driver bug fixes from Florian Fainelli. 8) Avoid unaligned accesses to protocol headers wrt. GRE, from Alexander Duyck. 9) SKB leaks and other problems in arc_emac driver, from Alexander Kochetkov. 10) tcp_v4_inbound_md5_hash() releases listener socket instead of request socket on error path, oops. Fix from Eric Dumazet. 11) Missing socket release in pppoe_rcv_core() that seems to have existed basically forever. From Guillaume Nault. 12) Missing slave_dev unregister in dsa_slave_create() error path, from Florian Fainelli. 13) crypto_alloc_hash() never returns NULL, fix return value check in __tcp_alloc_md5sig_pool. From Insu Yun. 14) Properly expire exception route entries in ipv4, from Xin Long. 15) Fix races in tcp/dccp listener socket dismantle, from Eric Dumazet. 16) Don't set IFF_TX_SKB_SHARING in vxlan, geneve, or GRE, it's not legal. These drivers modify the SKB on transmit. From Jiri Benc. 17) Fix regression in the initialziation of netdev->tx_queue_len. From Phil Sutter. 18) Missing unlock in tipc_nl_add_bc_link() error path, from Insu Yun. 19) SCTP port hash sizing does not properly ensure that table is a power of two in size. From Neil Horman. 20) Fix initializing of software copy of MAC address in fmvj18x_cs driver, from Ken Kawasaki" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (129 commits) bnx2x: Fix 84833 phy command handler bnx2x: Fix led setting for 84858 phy. bnx2x: Correct 84858 PHY fw version bnx2x: Fix 84833 RX CRC bnx2x: Fix link-forcing for KR2 net: ethernet: davicom: fix devicetree irq resource fmvj18x_cs: fix incorrect indexing of dev->dev_addr[] when copying the MAC address Driver: Vmxnet3: Update Rx ring 2 max size net: netcp: rework the code for get/set sw_data in dma desc soc: ti: knav_dma: rename pad in struct knav_dma_desc to sw_data net: ti: netcp: restore get/set_pad_info() functionality MAINTAINERS: Drop myself as xen netback maintainer sctp: Fix port hash table size computation can: ems_usb: Fix possible tx overflow Bluetooth: hci_core: Avoid mixing up req_complete and req_complete_skb net: bcmgenet: Fix internal PHY link state af_unix: Don't use continue to re-execute unix_stream_read_generic loop unix_diag: fix incorrect sign extension in unix_lookup_by_ino bnxt_en: Failure to update PHY is not fatal condition. bnxt_en: Remove unnecessary call to update PHY settings. ...
2016-02-21qed: Introduce DMA_REGPAIR_LEYuval Mintz1-0/+4
FW hsi contains regpairs, mostly for 64-bit address representations. Since same paradigm is applied each time a regpair is filled, this introduces a new utility macro for setting such regpairs. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-21bpf: fix csum update in bpf_l4_csum_replace helper for udpDaniel Borkmann1-0/+1
When using this helper for updating UDP checksums, we need to extend this in order to write CSUM_MANGLED_0 for csum computations that result into 0 as sum. Reason we need this is because packets with a checksum could otherwise become incorrectly marked as a packet without a checksum. Likewise, if the user indicates BPF_F_MARK_MANGLED_0, then we should not turn packets without a checksum into ones with a checksum. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-21bpf: try harder on clones when writing into skbDaniel Borkmann1-0/+7
When we're dealing with clones and the area is not writeable, try harder and get a copy via pskb_expand_head(). Replace also other occurences in tc actions with the new skb_try_make_writable(). Reported-by: Ashhad Sheikh <ashhadsheikh394@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-21bpf: add generic bpf_csum_diff helperDaniel Borkmann1-0/+11
For L4 checksums, we currently have bpf_l4_csum_replace() helper. It's currently limited to handle 2 and 4 byte changes in a header and feeds the from/to into inet_proto_csum_replace{2,4}() helpers of the kernel. When working with IPv6, for example, this makes it rather cumbersome to deal with, similarly when editing larger parts of a header. Instead, extend the API in a more generic way: For bpf_l4_csum_replace(), add a case for header field mask of 0 to change the checksum at a given offset through inet_proto_csum_replace_by_diff(), and provide a helper bpf_csum_diff() that can generically calculate a from/to diff for arbitrary amounts of data. This can be used in multiple ways: for the bpf_l4_csum_replace() only part, this even provides us with the option to insert precalculated diffs from user space f.e. from a map, or from bpf_csum_diff() during runtime. bpf_csum_diff() has a optional from/to stack buffer input, so we can calculate a diff by using a scratchbuffer for scenarios where we're inserting (from is NULL), removing (to is NULL) or diffing (from/to buffers don't need to be of equal size) data. Also, bpf_csum_diff() allows to feed a previous csum into csum_partial(), so the function can also be cascaded. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-21bpf: add new arg_type that allows for 0 sized stack bufferDaniel Borkmann1-0/+1
Currently, when we pass a buffer from the eBPF stack into a helper function, the function proto indicates argument types as ARG_PTR_TO_STACK and ARG_CONST_STACK_SIZE pair. If R<X> contains the former, then R<X+1> must be of the latter type. Then, verifier checks whether the buffer points into eBPF stack, is initialized, etc. The verifier also guarantees that the constant value passed in R<X+1> is greater than 0, so helper functions don't need to test for it and can always assume a non-NULL initialized buffer as well as non-0 buffer size. This patch adds a new argument types ARG_CONST_STACK_SIZE_OR_ZERO that allows to also pass NULL as R<X> and 0 as R<X+1> into the helper function. Such helper functions, of course, need to be able to handle these cases internally then. Verifier guarantees that either R<X> == NULL && R<X+1> == 0 or R<X> != NULL && R<X+1> != 0 (like the case of ARG_CONST_STACK_SIZE), any other combinations are not possible to load. I went through various options of extending the verifier, and introducing the type ARG_CONST_STACK_SIZE_OR_ZERO seems to have most minimal changes needed to the verifier. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-21VXLAN: Support outer IPv4 Tx checksums by defaultAlexander Duyck1-1/+1
This change makes it so that if UDP CSUM is not specified we will default to enabling it. The main motivation behind this is the fact that with the use of outer checksum we can greatly improve the performance for VXLAN tunnels on devices that don't know how to parse tunnel headers. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Acked-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-21soc: ti: knav_dma: rename pad in struct knav_dma_desc to sw_dataKaricheri, Muralidharan1-1/+3
Rename the pad to sw_data as per description of this field in the hardware spec(refer sprugr9 from www.ti.com). Latest version of the document is at http://www.ti.com/lit/ug/sprugr9h/sprugr9h.pdf and section 3.1 Host Packet Descriptor describes this field. Define and use a constant for the size of sw_data field similar to other fields in the struct for desc and document the sw_data field in the header. As the sw_data is not touched by hw, it's type can be changed to u32. Rename the helpers to match with the updated dma desc field sw_data. Cc: Wingman Kwok <w-kwok2@ti.com> Cc: Mugunthan V N <mugunthanvnm@ti.com> CC: Arnd Bergmann <arnd@arndb.de> CC: Grygorii Strashko <grygorii.strashko@ti.com> CC: David Laight <David.Laight@ACULAB.COM> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-21lwtunnel: autoload of lwt modulesRobert Shearman1-1/+3
The lwt implementations using net devices can autoload using the existing mechanism using IFLA_INFO_KIND. However, there's no mechanism that lwt modules not using net devices can use. Therefore, add the ability to autoload modules registering lwt operations for lwt implementations not using a net device so that users don't have to manually load the modules. Only users with the CAP_NET_ADMIN capability can cause modules to be loaded, which is ensured by rtnetlink_rcv_msg rejecting non-RTM_GETxxx messages for users without this capability, and by lwtunnel_build_state not being called in response to RTM_GETxxx messages. Signed-off-by: Robert Shearman <rshearma@brocade.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-20Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds2-1/+8
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Ingo Molnar: "This is unusually large, partly due to the EFI fixes that prevent accidental deletion of EFI variables through efivarfs that may brick machines. These fixes are somewhat involved to maintain compatibility with existing install methods and other usage modes, while trying to turn off the 'rm -rf' bricking vector. Other fixes are for large page ioremap()s and for non-temporal user-memcpy()s" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm: Fix vmalloc_fault() to handle large pages properly hpet: Drop stale URLs x86/uaccess/64: Handle the caching of 4-byte nocache copies properly in __copy_user_nocache() x86/uaccess/64: Make the __copy_user_nocache() assembly code more readable lib/ucs2_string: Correct ucs2 -> utf8 conversion efi: Add pstore variables to the deletion whitelist efi: Make efivarfs entries immutable by default efi: Make our variable validation list include the guid efi: Do variable name validation tests in utf8 efi: Use ucs2_as_utf8 in efivarfs instead of open coding a bad version lib/ucs2_string: Add ucs2 -> utf8 helper functions
2016-02-20Merge tag 'powerpc-4.5-3' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - Fix build error on 32-bit with checkpoint restart from Aneesh Kumar - Fix dedotify for binutils >= 2.26 from Andreas Schwab - Don't trace hcalls on offline CPUs from Denis Kirjanov - eeh: Fix stale cached primary bus from Gavin Shan - eeh: Fix stale PE primary bus from Gavin Shan - mm: Fix Multi hit ERAT cause by recent THP update from Aneesh Kumar K.V - ioda: Set "read" permission when "write" is set from Alexey Kardashevskiy * tag 'powerpc-4.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/ioda: Set "read" permission when "write" is set powerpc/mm: Fix Multi hit ERAT cause by recent THP update powerpc/powernv: Fix stale PE primary bus powerpc/eeh: Fix stale cached primary bus powerpc/pseries: Don't trace hcalls on offline CPUs powerpc: Fix dedotify for binutils >= 2.26 powerpc/book3s_32: Fix build error with checkpoint restart
2016-02-20Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk driver fixes from Stephen Boyd: "An assortment of vendor specific clk drivers fixes, most notably fallout from adding Tegra210 and rockchip rk3036/rk3368 drivers this cycle. There's also the random smattering of sparse/checker fixes, a build "fix" to get the Tango clk driver to compile because the Kconfig symbol was renamed after the fact, and a clk gpio fix for a patch mismerge" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (28 commits) clk: gpio: Really allow an optional clock= DT property Revert "clk: qcom: Specify LE device endianness" clk: versatile: mask VCO bits before writing clk: tegra: super: Fix sparse warnings for functions not declared as static clk: tegra: Fix sparse warnings for functions not declared as static clk: tegra: Fix sparse warning for pll_m clk: tegra: Use definition for pll_u override bit clk: tegra: Fix warning caused by pll_u failing to lock clk: tegra: Fix clock sources for Tegra210 EMC clk: tegra: Add the APB2APE audio clock on Tegra210 clk: tegra: Add missing of_node_put() clk: tegra: Fix PLLE SS coefficients clk: tegra: Fix typos around clearing PLLE bits during enable clk: tegra: Do not disable PLLE when under hardware control clk: tegra: Fix pllx dyn step calculation clk: tegra: pll: Fix potential sleeping-while-atomic clk: tegra: Fix the misnaming of nvenc from msenc clk: tegra: Fix naming of MISC registers clk: tango4: rename ARCH_TANGOX to ARCH_TANGO clk: scpi: Fix checking return value of platform_device_register_simple() ...
2016-02-20Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds1-1/+7
Pull more drm fixes from Dave Airlie: "Some more fixes trickled in: A bunch of VC4 ones since it's a pretty new driver not much chance of regressions, and it fixes GPU resets. Also one atomic fix, one set of fixes for a common bug in TTM cleanup, and one i915 hotplug fix" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/nouveau: use post-decrement in error handling drm/atomic: Allow for holes in connector state, v2. drm/i915: Fix hpd live status bits for g4x drm/vc4: Use runtime PM to power cycle the device when the GPU hangs. drm/vc4: Enable runtime PM. drm/vc4: Fix spurious GPU resets due to BO reuse. drm/vc4: Drop error message on seqno wait timeouts. drm/vc4: Fix -ERESTARTSYS error return from BO waits. drm/vc4: Return an ERR_PTR from BO creation instead of NULL. drm/vc4: Fix the clear color for the first tile rendered. drm/vc4: Validate that WAIT_BO padding is cleared. drm/radeon: use post-decrement in error handling drm/amdgpu: use post-decrement in error handling
2016-02-20bpf: introduce BPF_MAP_TYPE_STACK_TRACEAlexei Starovoitov2-0/+22
add new map type to store stack traces and corresponding helper bpf_get_stackid(ctx, map, flags) - walk user or kernel stack and return id @ctx: struct pt_regs* @map: pointer to stack_trace map @flags: bits 0-7 - numer of stack frames to skip bit 8 - collect user stack instead of kernel bit 9 - compare stacks by hash only bit 10 - if two different stacks hash into the same stackid discard old other bits - reserved Return: >= 0 stackid on success or negative error stackid is a 32-bit integer handle that can be further combined with other data (including other stackid) and used as a key into maps. Userspace will access stackmap using standard lookup/delete syscall commands to retrieve full stack trace for given stackid. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-20perf: generalize perf_callchainAlexei Starovoitov1-2/+11
. avoid walking the stack when there is no room left in the buffer . generalize get_perf_callchain() to be called from bpf helper Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19net/ethtool: support set coalesce per queueKan Liang1-0/+7
This patch implements sub command ETHTOOL_SCOALESCE for ioctl ETHTOOL_PERQUEUE. It introduces an interface set_per_queue_coalesce to set coalesce of each masked queue to device driver. The wanted coalesce information are stored in "data" for each masked queue, which can copy from userspace. If it fails to set coalesce to device driver, the value which already set to specific queue will be tried to rollback. Signed-off-by: Kan Liang <kan.liang@intel.com> Reviewed-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19net/ethtool: support get coalesce per queueKan Liang1-1/+7
This patch implements sub command ETHTOOL_GCOALESCE for ioctl ETHTOOL_PERQUEUE. It introduces an interface get_per_queue_coalesce to get coalesce of each masked queue from device driver. Then the interrupt coalescing parameters will be copied back to user space one by one. Signed-off-by: Kan Liang <kan.liang@intel.com> Reviewed-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19net/ethtool: introduce a new ioctl for per queue settingKan Liang1-0/+17
Introduce a new ioctl ETHTOOL_PERQUEUE for per queue parameters setting. The following patches will enable some SUB_COMMANDs for per queue setting. Signed-off-by: Kan Liang <kan.liang@intel.com> Reviewed-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19lib/bitmap.c: conversion routines to/from u32 arrayDavid Decotigny1-0/+10
Aimed at transferring bitmaps to/from user-space in a 32/64-bit agnostic way. Tested: unit tests (next patch) on qemu i386, x86_64, ppc, ppc64 BE and LE, ARM. Signed-off-by: David Decotigny <decot@googlers.com> Reviewed-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19Merge branch 'akpm' (patches from Andrew)Linus Torvalds1-4/+1
Merge fixes from Andrew Morton: "10 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm: slab: free kmem_cache_node after destroy sysfs file ipc/shm: handle removed segments gracefully in shm_mmap() MAINTAINERS: update Kselftest Framework mailing list devm_memremap_release(): fix memremap'd addr handling mm/hugetlb.c: fix incorrect proc nr_hugepages value mm, x86: fix pte_page() crash in gup_pte_range() fsnotify: turn fsnotify reaper thread into a workqueue job Revert "fsnotify: destroy marks with call_srcu instead of dedicated thread" mm: fix regression in remap_file_pages() emulation thp, dax: do not try to withdraw pgtable from non-anon VMA
2016-02-19net: make netdev_for_each_lower_dev safe for device removalNikolay Aleksandrov1-1/+1
When I used netdev_for_each_lower_dev in commit bad531623253 ("vrf: remove slave queue and private slave struct") I thought that it acts like netdev_for_each_lower_private and can be used to remove the current device from the list while walking, but unfortunately it acts more like netdev_for_each_lower_private_rcu and doesn't allow it. The difference is where the "iter" points to, right now it points to the current element and that makes it impossible to remove it. Change the logic to be similar to netdev_for_each_lower_private and make it point to the "next" element so we can safely delete the current one. VRF is the only such user right now, there's no change for the read-only users. Here's what can happen now: [98423.249858] general protection fault: 0000 [#1] SMP [98423.250175] Modules linked in: vrf bridge(O) stp llc nfsd auth_rpcgss oid_registry nfs_acl nfs lockd grace sunrpc crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel jitterentropy_rng sha256_generic hmac drbg ppdev aesni_intel aes_x86_64 glue_helper lrw gf128mul ablk_helper cryptd evdev serio_raw pcspkr virtio_balloon parport_pc parport i2c_piix4 i2c_core virtio_console acpi_cpufreq button 9pnet_virtio 9p 9pnet fscache ipv6 autofs4 ext4 crc16 mbcache jbd2 sg virtio_blk virtio_net sr_mod cdrom e1000 ata_generic ehci_pci uhci_hcd ehci_hcd usbcore usb_common virtio_pci ata_piix libata floppy virtio_ring virtio scsi_mod [last unloaded: bridge] [98423.255040] CPU: 1 PID: 14173 Comm: ip Tainted: G O 4.5.0-rc2+ #81 [98423.255386] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.1-20150318_183358- 04/01/2014 [98423.255777] task: ffff8800547f5540 ti: ffff88003428c000 task.ti: ffff88003428c000 [98423.256123] RIP: 0010:[<ffffffff81514f3e>] [<ffffffff81514f3e>] netdev_lower_get_next+0x1e/0x30 [98423.256534] RSP: 0018:ffff88003428f940 EFLAGS: 00010207 [98423.256766] RAX: 0002000100000004 RBX: ffff880054ff9000 RCX: 0000000000000000 [98423.257039] RDX: ffff88003428f8b8 RSI: ffff88003428f950 RDI: ffff880054ff90c0 [98423.257287] RBP: ffff88003428f940 R08: 0000000000000000 R09: 0000000000000000 [98423.257537] R10: 0000000000000001 R11: 0000000000000000 R12: ffff88003428f9e0 [98423.257802] R13: ffff880054a5fd00 R14: ffff88003428f970 R15: 0000000000000001 [98423.258055] FS: 00007f3d76881700(0000) GS:ffff88005d000000(0000) knlGS:0000000000000000 [98423.258418] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [98423.258650] CR2: 00007ffe5951ffa8 CR3: 0000000052077000 CR4: 00000000000406e0 [98423.258902] Stack: [98423.259075] ffff88003428f960 ffffffffa0442636 0002000100000004 ffff880054ff9000 [98423.259647] ffff88003428f9b0 ffffffff81518205 ffff880054ff9000 ffff88003428f978 [98423.260208] ffff88003428f978 ffff88003428f9e0 ffff88003428f9e0 ffff880035b35f00 [98423.260739] Call Trace: [98423.260920] [<ffffffffa0442636>] vrf_dev_uninit+0x76/0xa0 [vrf] [98423.261156] [<ffffffff81518205>] rollback_registered_many+0x205/0x390 [98423.261401] [<ffffffff815183ec>] unregister_netdevice_many+0x1c/0x70 [98423.261641] [<ffffffff8153223c>] rtnl_delete_link+0x3c/0x50 [98423.271557] [<ffffffff815335bb>] rtnl_dellink+0xcb/0x1d0 [98423.271800] [<ffffffff811cd7da>] ? __inc_zone_state+0x4a/0x90 [98423.272049] [<ffffffff815337b4>] rtnetlink_rcv_msg+0x84/0x200 [98423.272279] [<ffffffff810cfe7d>] ? trace_hardirqs_on+0xd/0x10 [98423.272513] [<ffffffff8153370b>] ? rtnetlink_rcv+0x1b/0x40 [98423.272755] [<ffffffff81533730>] ? rtnetlink_rcv+0x40/0x40 [98423.272983] [<ffffffff8155d6e7>] netlink_rcv_skb+0x97/0xb0 [98423.273209] [<ffffffff8153371a>] rtnetlink_rcv+0x2a/0x40 [98423.273476] [<ffffffff8155ce8b>] netlink_unicast+0x11b/0x1a0 [98423.273710] [<ffffffff8155d2f1>] netlink_sendmsg+0x3e1/0x610 [98423.273947] [<ffffffff814fbc98>] sock_sendmsg+0x38/0x70 [98423.274175] [<ffffffff814fc253>] ___sys_sendmsg+0x2e3/0x2f0 [98423.274416] [<ffffffff810d841e>] ? do_raw_spin_unlock+0xbe/0x140 [98423.274658] [<ffffffff811e1bec>] ? handle_mm_fault+0x26c/0x2210 [98423.274894] [<ffffffff811e19cd>] ? handle_mm_fault+0x4d/0x2210 [98423.275130] [<ffffffff81269611>] ? __fget_light+0x91/0xb0 [98423.275365] [<ffffffff814fcd42>] __sys_sendmsg+0x42/0x80 [98423.275595] [<ffffffff814fcd92>] SyS_sendmsg+0x12/0x20 [98423.275827] [<ffffffff81611bb6>] entry_SYSCALL_64_fastpath+0x16/0x7a [98423.276073] Code: c3 31 c0 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 48 8b 06 55 48 81 c7 c0 00 00 00 48 89 e5 48 8b 00 48 39 f8 74 09 48 89 06 <48> 8b 40 e8 5d c3 31 c0 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 [98423.279639] RIP [<ffffffff81514f3e>] netdev_lower_get_next+0x1e/0x30 [98423.279920] RSP <ffff88003428f940> CC: David Ahern <dsa@cumulusnetworks.com> CC: David S. Miller <davem@davemloft.net> CC: Roopa Prabhu <roopa@cumulusnetworks.com> CC: Vlad Yasevich <vyasevic@redhat.com> Fixes: bad531623253 ("vrf: remove slave queue and private slave struct") Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Reviewed-by: David Ahern <dsa@cumulusnetworks.com> Tested-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19bridge: mdb: add support for more attributes and export timerNikolay Aleksandrov1-1/+12
Currently mdb entries are exported directly as a structure inside MDBA_MDB_ENTRY_INFO attribute, we can't really extend it without breaking user-space. In order to export new mdb fields, I've converted the MDBA_MDB_ENTRY_INFO into a nested attribute which starts like before with struct br_mdb_entry (without header, as it's casted directly in iproute2) and continues with MDBA_MDB_EATTR_ attributes. This way we keep compatibility with older users and can export new data. I've tested this with iproute2, both with and without support for the added attribute and it works fine. So basically we again have MDBA_MDB_ENTRY_INFO with struct br_mdb_entry inside but it may contain also some additional MDBA_MDB_EATTR_ attributes such as MDBA_MDB_EATTR_TIMER which can be parsed by user-space. So the new structure is: [MDBA_MDB] = { [MDBA_MDB_ENTRY] = { [MDBA_MDB_ENTRY_INFO] [MDBA_MDB_ENTRY_INFO] { <- Nested attribute struct br_mdb_entry <- nla_put_nohdr() [MDBA_MDB_ENTRY attributes] <- normal netlink attributes } } } Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-19drm/atomic: Allow for holes in connector state, v2.Maarten Lankhorst1-1/+7
Because we record connector_mask using 1 << drm_connector_index now the connector_mask should stay the same even when other connectors are removed. This was not the case with MST, in that case when removing a connector all other connectors may change their index. This is fixed by waiting until the first get_connector_state to allocate connector_state, and force reallocation when state is too small. As a side effect connector arrays no longer have to be preallocated, and can be allocated on first use which means a less allocations in the page flip only path. Changes since v1: - Whitespace. (Ville) - Call ida_remove when destroying the connector. (Ville) - u32 alloc -> int. (Ville) Fixes: 14de6c44d149 ("drm/atomic: Remove drm_atomic_connectors_for_crtc.") Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Lyude <cpaul@redhat.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-02-18Merge branch 'for-linus' of ↵Linus Torvalds1-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching Pull livepatching fixes from Jiri Kosina: - regression (from 4.4) fix for ordering issue, introduced by an earlier ftrace change, that broke live patching of modules. The fix replaces the ftrace module notifier by direct call in order to make the ordering guaranteed and well-defined. The patch, from Jessica Yu, has been acked both by Steven and Rusty - error message fix from Miroslav Benes * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching: ftrace/module: remove ftrace module notifier livepatch: change the error message in asm/livepatch.h header files
2016-02-18Revert "fsnotify: destroy marks with call_srcu instead of dedicated thread"Jeff Layton1-4/+1
This reverts commit c510eff6beba ("fsnotify: destroy marks with call_srcu instead of dedicated thread"). Eryu reported that he was seeing some OOM kills kick in when running a testcase that adds and removes inotify marks on a file in a tight loop. The above commit changed the code to use call_srcu to clean up the marks. While that does (in principle) work, the srcu callback job is limited to cleaning up entries in small batches and only once per jiffy. It's easily possible to overwhelm that machinery with too many call_srcu callbacks, and Eryu's reproduer did just that. There's also another potential problem with using call_srcu here. While you can obviously sleep while holding the srcu_read_lock, the callbacks run under local_bh_disable, so you can't sleep there. It's possible when putting the last reference to the fsnotify_mark that we'll end up putting a chain of references including the fsnotify_group, uid, and associated keys. While I don't see any obvious ways that that could occurs, it's probably still best to avoid using call_srcu here after all. This patch reverts the above patch. A later patch will take a different approach to eliminated the dedicated thread here. Signed-off-by: Jeff Layton <jeff.layton@primarydata.com> Reported-by: Eryu Guan <guaneryu@gmail.com> Tested-by: Eryu Guan <guaneryu@gmail.com> Cc: Jan Kara <jack@suse.com> Cc: Eric Paris <eparis@parisplace.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-02-18qed: Lay infrastructure for vlan filtering offloadYuval Mintz1-0/+2
Today, interfaces are working in vlan-promisc mode; But once vlan filtering offloaded would be supported, we'll need a method to control it directly [e.g., when setting device to PROMISC, or when running out of vlan credits]. This adds the necessary API for L2 client to manually choose whether to accept all vlans or only those for which filters were configured. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18net: Optimize local checksum offloadAlexander Duyck1-9/+8
This patch takes advantage of several assumptions we can make about the headers of the frame in order to reduce overall processing overhead for computing the outer header checksum. First we can assume the entire header is in the region pointed to by skb->head as this is what csum_start is based on. Second, as a result of our first assumption, we can just call csum_partial instead of making a call to skb_checksum which would end up having to configure things so that we could walk through the frags list. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18ipv6: Annotate change of locking mechanism for np->optBenjamin Poirier1-2/+6
follows up commit 45f6fad84cc3 ("ipv6: add complete rcu protection around np->opt") which added mixed rcu/refcount protection to np->opt. Given the current implementation of rcu_pointer_handoff(), this has no effect at runtime. Signed-off-by: Benjamin Poirier <bpoirier@suse.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18iptunnel: scrub packet in iptunnel_pull_headerJiri Benc1-1/+2
Part of skb_scrub_packet was open coded in iptunnel_pull_header. Let it call skb_scrub_packet directly instead. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18vxlan: tun_id is 64bit, not 32bitJiri Benc1-0/+9
The tun_id field in struct ip_tunnel_key is __be64, not __be32. We need to convert the vni to tun_id correctly. Fixes: 54bfd872bf16 ("vxlan: keep flags and vni in network byte order") Reported-by: Paolo Abeni <pabeni@redhat.com> Tested-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18nfnetlink: Revert "nfnetlink: add support for memory mapped netlink"Florian Westphal1-10/+0
reverts commit 3ab1f683bf8b ("nfnetlink: add support for memory mapped netlink")' Like previous commits in the series, remove wrappers that are not needed after mmapped netlink removal. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18nfnetlink: remove nfnetlink_alloc_skbFlorian Westphal1-2/+0
Following mmapped netlink removal this code can be simplified by removing the alloc wrapper. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18Revert "genl: Add genlmsg_new_unicast() for unicast message allocation"Florian Westphal1-4/+0
This reverts commit bb9b18fb55b0 ("genl: Add genlmsg_new_unicast() for unicast message allocation")'. Nothing wrong with it; its no longer needed since this was only for mmapped netlink support. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18netlink: remove mmapped netlink supportFlorian Westphal2-0/+6
mmapped netlink has a number of unresolved issues: - TX zerocopy support had to be disabled more than a year ago via commit 4682a0358639b29cf ("netlink: Always copy on mmap TX.") because the content of the mmapped area can change after netlink attribute validation but before message processing. - RX support was implemented mainly to speed up nfqueue dumping packet payload to userspace. However, since commit ae08ce0021087a5d812d2 ("netfilter: nfnetlink_queue: zero copy support") we avoid one copy with the socket-based interface too (via the skb_zerocopy helper). The other problem is that skbs attached to mmaped netlink socket behave different from normal skbs: - they don't have a shinfo area, so all functions that use skb_shinfo() (e.g. skb_clone) cannot be used. - reserving headroom prevents userspace from seeing the content as it expects message to start at skb->head. See for instance commit aa3a022094fa ("netlink: not trim skb for mmaped socket when dump"). - skbs handed e.g. to netlink_ack must have non-NULL skb->sk, else we crash because it needs the sk to check if a tx ring is attached. Also not obvious, leads to non-intuitive bug fixes such as 7c7bdf359 ("netfilter: nfnetlink: use original skbuff when acking batches"). mmaped netlink also didn't play nicely with the skb_zerocopy helper used by nfqueue and openvswitch. Daniel Borkmann fixed this via commit 6bb0fef489f6 ("netlink, mmap: fix edge-case leakages in nf queue zero-copy")' but at the cost of also needing to provide remaining length to the allocation function. nfqueue also has problems when used with mmaped rx netlink: - mmaped netlink doesn't allow use of nfqueue batch verdict messages. Problem is that in the mmap case, the allocation time also determines the ordering in which the frame will be seen by userspace (A allocating before B means that A is located in earlier ring slot, but this also means that B might get a lower sequence number then A since seqno is decided later. To fix this we would need to extend the spinlocked region to also cover the allocation and message setup which isn't desirable. - nfqueue can now be configured to queue large (GSO) skbs to userspace. Queing GSO packets is faster than having to force a software segmentation in the kernel, so this is a desirable option. However, with a mmap based ring one has to use 64kb per ring slot element, else mmap has to fall back to the socket path (NL_MMAP_STATUS_COPY) for all large packets. To use the mmap interface, userspace not only has to probe for mmap netlink support, it also has to implement a recv/socket receive path in order to handle messages that exceed the size of an rx ring element. Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Ken-ichirou MATSUZAWA <chamaken@gmail.com> Cc: Pablo Neira Ayuso <pablo@netfilter.org> Cc: Patrick McHardy <kaber@trash.net> Cc: Thomas Graf <tgraf@suug.ch> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18tcp/dccp: fix another race at listener dismantleEric Dumazet1-2/+3
Ilya reported following lockdep splat: kernel: ========================= kernel: [ BUG: held lock freed! ] kernel: 4.5.0-rc1-ceph-00026-g5e0a311 #1 Not tainted kernel: ------------------------- kernel: swapper/5/0 is freeing memory ffff880035c9d200-ffff880035c9dbff, with a lock still held there! kernel: (&(&queue->rskq_lock)->rlock){+.-...}, at: [<ffffffff816f6a88>] inet_csk_reqsk_queue_add+0x28/0xa0 kernel: 4 locks held by swapper/5/0: kernel: #0: (rcu_read_lock){......}, at: [<ffffffff8169ef6b>] netif_receive_skb_internal+0x4b/0x1f0 kernel: #1: (rcu_read_lock){......}, at: [<ffffffff816e977f>] ip_local_deliver_finish+0x3f/0x380 kernel: #2: (slock-AF_INET){+.-...}, at: [<ffffffff81685ffb>] sk_clone_lock+0x19b/0x440 kernel: #3: (&(&queue->rskq_lock)->rlock){+.-...}, at: [<ffffffff816f6a88>] inet_csk_reqsk_queue_add+0x28/0xa0 To properly fix this issue, inet_csk_reqsk_queue_add() needs to return to its callers if the child as been queued into accept queue. We also need to make sure listener is still there before calling sk->sk_data_ready(), by holding a reference on it, since the reference carried by the child can disappear as soon as the child is put on accept queue. Reported-by: Ilya Dryomov <idryomov@gmail.com> Fixes: ebb516af60e1 ("tcp/dccp: fix race at listener dismantle phase") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-18route: check and remove route cache when we get routeXin Long1-0/+1
Since the gc of ipv4 route was removed, the route cached would has no chance to be removed, and even it has been timeout, it still could be used, cause no code to check it's expires. Fix this issue by checking and removing route cache when we get route. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17vxlan: keep flags and vni in network byte orderJiri Benc1-11/+59
Prevent repeated conversions from and to network order in the fast path. To achieve this, define all flag constants in big endian order and store VNI as __be32. To prevent confusion between the actual VNI value and the VNI field from the header (which contains additional reserved byte), strictly distinguish between "vni" and "vni_field". Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17vxlan: introduce vxlan_hdrJiri Benc1-0/+5
Currently, pointer to the vxlan header is kept in a local variable. It has to be reloaded whenever the pskb pull operations are performed which usually happens somewhere deep in called functions. Create a vxlan_hdr function and use it to reference the vxlan header instead. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17net: pack tc_cls_u32_knode struct slighter betterJohn Fastabend1-2/+2
By packing the structure we can remove a few holes as Jamal suggests. before: struct tc_cls_u32_knode { struct tcf_exts * exts; /* 0 8 */ u8 fshift; /* 8 1 */ /* XXX 3 bytes hole, try to pack */ u32 handle; /* 12 4 */ u32 val; /* 16 4 */ u32 mask; /* 20 4 */ u32 link_handle; /* 24 4 */ /* XXX 4 bytes hole, try to pack */ struct tc_u32_sel * sel; /* 32 8 */ /* size: 40, cachelines: 1, members: 7 */ /* sum members: 33, holes: 2, sum holes: 7 */ /* last cacheline: 40 bytes */ }; after: struct tc_cls_u32_knode { struct tcf_exts * exts; /* 0 8 */ struct tc_u32_sel * sel; /* 8 8 */ u32 handle; /* 16 4 */ u32 val; /* 20 4 */ u32 mask; /* 24 4 */ u32 link_handle; /* 28 4 */ u8 fshift; /* 32 1 */ /* size: 40, cachelines: 1, members: 7 */ /* padding: 7 */ /* last cacheline: 40 bytes */ }; Suggested-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17ipv4: Remove inet_lro libraryBen Hutchings1-142/+0
There are no longer any in-tree drivers that use it. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17ftrace/module: remove ftrace module notifierJessica Yu1-2/+4
Remove the ftrace module notifier in favor of directly calling ftrace_module_enable() and ftrace_release_mod() in the module loader. Hard-coding the function calls directly in the module loader removes dependence on the module notifier call chain and provides better visibility and control over what gets called when, which is important to kernel utilities such as livepatch. This fixes a notifier ordering issue in which the ftrace module notifier (and hence ftrace_module_enable()) for coming modules was being called after klp_module_notify(), which caused livepatch modules to initialize incorrectly. This patch removes dependence on the module notifier call chain in favor of hard coding the corresponding function calls in the module loader. This ensures that ftrace and livepatch code get called in the correct order on patch module load and unload. Fixes: 5156dca34a3e ("ftrace: Fix the race between ftrace and insmod") Signed-off-by: Jessica Yu <jeyu@redhat.com> Reviewed-by: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Petr Mladek <pmladek@suse.cz> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Reviewed-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2016-02-17qed/qede: use 8.7.3.0 FW.Yuval Mintz3-42/+173
This patch moves the qed* driver into utilizing the 8.7.3.0 FW. This new FW is required for a lot of new SW features, including: - Vlan filtering offload - Encapsulation offload support - HW ingress aggregations As well as paving the way for the possibility of adding storage protocols in the future. V2: - Fix kbuild test robot error/warnings. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@qlogic.com> Signed-off-by: Manish Chopra <manish.chopra@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-02-17sctp: remove the unused sctp_datamsg_free()Xin Long1-1/+0
Since commit 8b570dc9f7b6 ("sctp: only drop the reference on the datamsg after sending a msg") used sctp_datamsg_put in sctp_sendmsg, instead of sctp_datamsg_free, this function has no use in sctp. So we will remove it. Signed-off-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-10 06:54:35 +0000