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2017-08-22tipc: remove subscription references only for pending timersParthasarathy Bhuvaragan
In commit, 139bb36f754a ("tipc: advance the time of deleting subscription from subscriber->subscrp_list"), we delete the subscription from the subscribers list and from nametable unconditionally. This leads to the following bug if the timer running tipc_subscrp_timeout() in another CPU accesses the subscription list after the subscription delete request. [39.570] general protection fault: 0000 [#1] SMP :: [39.574] task: ffffffff81c10540 task.stack: ffffffff81c00000 [39.575] RIP: 0010:tipc_subscrp_timeout+0x32/0x80 [tipc] [39.576] RSP: 0018:ffff88003ba03e90 EFLAGS: 00010282 [39.576] RAX: dead000000000200 RBX: ffff88003f0f3600 RCX: 0000000000000101 [39.577] RDX: dead000000000100 RSI: 0000000000000201 RDI: ffff88003f0d7948 [39.578] RBP: ffff88003ba03ea0 R08: 0000000000000001 R09: ffff88003ba03ef8 [39.579] R10: 000000000000014f R11: 0000000000000000 R12: ffff88003f0d7948 [39.580] R13: ffff88003f0f3618 R14: ffffffffa006c250 R15: ffff88003f0f3600 [39.581] FS: 0000000000000000(0000) GS:ffff88003ba00000(0000) knlGS:0000000000000000 [39.582] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [39.583] CR2: 00007f831c6e0714 CR3: 000000003d3b0000 CR4: 00000000000006f0 [39.584] Call Trace: [39.584] <IRQ> [39.585] call_timer_fn+0x3d/0x180 [39.585] ? tipc_subscrb_rcv_cb+0x260/0x260 [tipc] [39.586] run_timer_softirq+0x168/0x1f0 [39.586] ? sched_clock_cpu+0x16/0xc0 [39.587] __do_softirq+0x9b/0x2de [39.587] irq_exit+0x60/0x70 [39.588] smp_apic_timer_interrupt+0x3d/0x50 [39.588] apic_timer_interrupt+0x86/0x90 [39.589] RIP: 0010:default_idle+0x20/0xf0 [39.589] RSP: 0018:ffffffff81c03e58 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 [39.590] RAX: 0000000000000000 RBX: ffffffff81c10540 RCX: 0000000000000000 [39.591] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [39.592] RBP: ffffffff81c03e68 R08: 0000000000000000 R09: 0000000000000000 [39.593] R10: ffffc90001cbbe00 R11: 0000000000000000 R12: 0000000000000000 [39.594] R13: ffffffff81c10540 R14: 0000000000000000 R15: 0000000000000000 [39.595] </IRQ> :: [39.603] RIP: tipc_subscrp_timeout+0x32/0x80 [tipc] RSP: ffff88003ba03e90 [39.604] ---[ end trace 79ce94b7216cb459 ]--- Fixes: 139bb36f754a ("tipc: advance the time of deleting subscription from subscriber->subscrp_list") Signed-off-by: Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22mlxsw: spectrum_switchdev: Fix mrouter flag updateNogah Frankel
Update the value of the mrouter flag in struct mlxsw_sp_bridge_port when it is being changed. Fixes: c57529e1d5d8 ("mlxsw: spectrum: Replace vPorts with Port-VLAN") Signed-off-by: Nogah Frankel <nogahf@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22net: ftgmac100: Fix oops in probe on failure to find associated PHYAndrew Jeffery
netif_napi_del() should be paired with netif_napi_add(), however no such call takes place in ftgmac100_probe(). This triggers a NULL pointer dereference if e.g. no PHY is found by the MDIO probe: [ 2.770000] libphy: Fixed MDIO Bus: probed [ 2.770000] ftgmac100 1e660000.ethernet: Generated random MAC address 66:58:c0:5a:50:b8 [ 2.790000] libphy: ftgmac100_mdio: probed [ 2.790000] ftgmac100 1e660000.ethernet (unnamed net_device) (uninitialized): eth%d: no PHY found [ 2.790000] ftgmac100 1e660000.ethernet: MII Probe failed! [ 2.810000] Unable to handle kernel NULL pointer dereference at virtual address 00000004 [ 2.810000] pgd = 80004000 [ 2.810000] [00000004] *pgd=00000000 [ 2.810000] Internal error: Oops: 805 [#1] ARM [ 2.810000] CPU: 0 PID: 1 Comm: swapper Not tainted 4.10.17-1a4df30c39cf5ee0e3d2528c409787ccbb4a672a #1 [ 2.810000] Hardware name: ASpeed SoC [ 2.810000] task: 9e421b60 task.stack: 9e4a0000 [ 2.810000] PC is at netif_napi_del+0x74/0xa4 [ 2.810000] LR is at ftgmac100_probe+0x290/0x674 [ 2.810000] pc : [<80331004>] lr : [<80292b30>] psr: 60000013 [ 2.810000] sp : 9e4a1d70 ip : 9e4a1d88 fp : 9e4a1d84 [ 2.810000] r10: 9e565000 r9 : ffffffed r8 : 00000007 [ 2.810000] r7 : 9e565480 r6 : 9ec072c0 r5 : 00000000 r4 : 9e5654d8 [ 2.810000] r3 : 9e565530 r2 : 00000000 r1 : 00000000 r0 : 9e5654d8 [ 2.810000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 2.810000] Control: 00c5387d Table: 80004008 DAC: 00000055 [ 2.810000] Process swapper (pid: 1, stack limit = 0x9e4a0188) [ 2.810000] Stack: (0x9e4a1d70 to 0x9e4a2000) [ 2.810000] 1d60: 9e565000 9e549e10 9e4a1dcc 9e4a1d88 [ 2.810000] 1d80: 80292b30 80330f9c ffffffff 9e4a1d98 80146058 9ec072c0 00009e10 00000000 [ 2.810000] 1da0: 9e549e18 9e549e10 ffffffed 805f81f4 fffffdfb 00000000 00000000 00000000 [ 2.810000] 1dc0: 9e4a1dec 9e4a1dd0 80243df8 802928ac 9e549e10 8062cbd8 8062cbe0 805f81f4 [ 2.810000] 1de0: 9e4a1e24 9e4a1df0 80242178 80243da4 803001d0 802ffa60 9e4a1e24 9e549e10 [ 2.810000] 1e00: 9e549e44 805f81f4 00000000 00000000 805b8840 8058a6b0 9e4a1e44 9e4a1e28 [ 2.810000] 1e20: 80242434 80241f04 00000000 805f81f4 80242344 00000000 9e4a1e6c 9e4a1e48 [ 2.810000] 1e40: 80240148 80242350 9e425bac 9e4fdc90 9e790e94 805f81f4 9e790e60 805f5640 [ 2.810000] 1e60: 9e4a1e7c 9e4a1e70 802425dc 802400d8 9e4a1ea4 9e4a1e80 80240ba8 802425c0 [ 2.810000] 1e80: 8050b6ac 9e4a1e90 805f81f4 ffffe000 805b8838 80616720 9e4a1ebc 9e4a1ea8 [ 2.810000] 1ea0: 80243068 80240a68 805ab24c ffffe000 9e4a1ecc 9e4a1ec0 80244a38 80242fec [ 2.810000] 1ec0: 9e4a1edc 9e4a1ed0 805ab264 80244a04 9e4a1f4c 9e4a1ee0 8058ae70 805ab258 [ 2.810000] 1ee0: 80032c68 801e3fd8 8052f800 8041af2c 9e4a1f4c 9e4a1f00 80032f90 8058a6bc [ 2.810000] 1f00: 9e4a1f2c 9e4a1f10 00000006 00000006 00000000 8052f220 805112f0 00000000 [ 2.810000] 1f20: 9e4a1f4c 00000006 80616720 805cf400 80616720 805b8838 80616720 00000057 [ 2.810000] 1f40: 9e4a1f94 9e4a1f50 8058b040 8058add0 00000006 00000006 00000000 8058a6b0 [ 2.810000] 1f60: 3940bf3d 00000007 f115c2e8 00000000 803fd158 00000000 00000000 00000000 [ 2.810000] 1f80: 00000000 00000000 9e4a1fac 9e4a1f98 803fd170 8058af38 00000000 803fd158 [ 2.810000] 1fa0: 00000000 9e4a1fb0 8000a5e8 803fd164 00000000 00000000 00000000 00000000 [ 2.810000] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 2.810000] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 d11dcae8 af8ddec5 [ 2.810000] [<80331004>] (netif_napi_del) from [<80292b30>] (ftgmac100_probe+0x290/0x674) [ 2.810000] [<80292b30>] (ftgmac100_probe) from [<80243df8>] (platform_drv_probe+0x60/0xc0) [ 2.810000] [<80243df8>] (platform_drv_probe) from [<80242178>] (driver_probe_device+0x280/0x44c) [ 2.810000] [<80242178>] (driver_probe_device) from [<80242434>] (__driver_attach+0xf0/0x104) [ 2.810000] [<80242434>] (__driver_attach) from [<80240148>] (bus_for_each_dev+0x7c/0xb0) [ 2.810000] [<80240148>] (bus_for_each_dev) from [<802425dc>] (driver_attach+0x28/0x30) [ 2.810000] [<802425dc>] (driver_attach) from [<80240ba8>] (bus_add_driver+0x14c/0x268) [ 2.810000] [<80240ba8>] (bus_add_driver) from [<80243068>] (driver_register+0x88/0x104) [ 2.810000] [<80243068>] (driver_register) from [<80244a38>] (__platform_driver_register+0x40/0x54) [ 2.810000] [<80244a38>] (__platform_driver_register) from [<805ab264>] (ftgmac100_driver_init+0x18/0x20) [ 2.810000] [<805ab264>] (ftgmac100_driver_init) from [<8058ae70>] (do_one_initcall+0xac/0x168) [ 2.810000] [<8058ae70>] (do_one_initcall) from [<8058b040>] (kernel_init_freeable+0x114/0x1cc) [ 2.810000] [<8058b040>] (kernel_init_freeable) from [<803fd170>] (kernel_init+0x18/0x104) [ 2.810000] [<803fd170>] (kernel_init) from [<8000a5e8>] (ret_from_fork+0x14/0x2c) [ 2.810000] Code: e594205c e5941058 e2843058 e3a05000 (e5812004) [ 3.210000] ---[ end trace f32811052fd3860c ]--- Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22rdma: Autoload netlink client modulesJason Gunthorpe
If a message comes in and we do not have the client in the table, then try to load the module supplying that client using MODULE_ALIAS to find it. This duplicates the scheme seen in other netlink muxes (eg nfnetlink). Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22rdma: Allow demand loading of NETLINK_RDMAJason Gunthorpe
Provide a module alias so that if userspace opens a netlink socket for RDMA the kernel support is loaded automatically. Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22ACPI: device property: Fix node lookup in acpi_graph_get_child_prop_value()Sakari Ailus
acpi_graph_get_child_prop_value() is intended to find a child node with a certain property value pair. The check if (!fwnode_property_read_u32(fwnode, prop_name, &nr)) continue; is faulty: fwnode_property_read_u32() returns zero on success, not on failure, leading to comparing values only if the searched property was not found. Moreover, the check is made against the parent device node instead of the child one as it should be. Fixes: 79389a83bc38 (ACPI / property: Add support for remote endpoints) Reported-by: Hyungwoo Yang <hyungwoo.yang@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: 4.12+ <stable@vger.kernel.org> # 4.12+ [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-22IB/mlx4: use kvmalloc_array to allocate wridLi Dongyang
We could use kvmalloc_array instead of the kmalloc and __vmalloc combination. After this we don't need to include linux/vmalloc.h Signed-off-by: Li Dongyang <dongyang.li@anu.edu.au> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/mlx5: use kvmalloc_array for mlx5_ib_wqLi Dongyang
We observed multiple times on our Lustre OSS servers that when the system memory is fragmented, kmalloc() in create_kernel_qp() could fail order 4/5 allocations while we still have many free pages. Switch to kvmalloc_array() to allow the operation to contine. Signed-off-by: Li Dongyang <dongyang.li@anu.edu.au> Acked-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22ACPICA: Fix acpi_evaluate_object_typed()Rafael J. Wysocki
Commit 2d2a954375a0 (ACPICA: Update two error messages to emit control method name) causes acpi_evaluate_object_typed() to fail if its pathname argument is NULL, but some callers of that function in the kernel, particularly acpi_nondev_subnode_data_ok(), pass NULL as pathname to it and expect it to work. For this reason, make acpi_evaluate_object_typed() check if its pathname argument is NULL and fall back to using the pathname of its handle argument if that is the case. Reported-by: Sakari Ailus <sakari.ailus@intel.com> Tested-by: Yang, Hyungwoo <hyungwoo.yang@intel.com> Fixes: 2d2a954375a0 (ACPICA: Update two error messages to emit control method name) Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-08-22net/hsr: Check skb_put_padto() return valueFlorian Fainelli
skb_put_padto() will free the sk_buff passed as reference in case of errors, but we still need to check its return value and decide what to do. Detected by CoverityScan, CID#1416688 ("CHECKED_RETURN") Fixes: ee1c27977284 ("net/hsr: Added support for HSR v1") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22RDMA: Fix return value check for ib_get_eth_speed()Selvin Xavier
ib_get_eth_speed() return 0 on success. Fixing the condition checking and prevent reporting failure for query_port verb. Fixes: d41861942fc5 ("Add generic function to extract IB speed from netdev") Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22Merge tag 'phy-for-4.14_v2' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next Kishon writes: phy: for 4.14 *) Add USB PHY driver for Ralink SoC *) Make phy-mt65xx-usb3 driver support PCIe and SATA phy *) Add mediatek directory and rename phy-mt65xx-usb3 to phy-mtk-tphy.c since it now supports USB3.0, PCIe and SATA PHYs *) Make sun4i-usb-phy driver support USB PHYs for A83T SoC *) Make phy-qcom-qmp driver support USB PHYs for IPQ8074 SoC *) Make rockchip-inno-usb2 driver support usb2-phy for rv1108 SoC *) Minor fixes in phy drivers Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-08-22Merge tag 'usb-for-v4.14' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next Felipe writes: usb: changes for v4.14 merge window Not a big pull request this time around. Only 49 non-merge commits. This pull request is, however, all over the place. Most of the changes are in the bdc driver adding support for USB Phy layer and PM. Renesas adds support for R-Car H3 ES2.0 and R-Car M3-W SoCs. Also here is PM_RUNTIME support for dwc3-keystone. UDC Core got a DMA unmap fix to make sure we only unmap requests that were, indeed, mapped. Other than these, we have a lot of cleanups, many of them adding 'const' to several places.
2017-08-22IB/pvrdma: Remove unused functionYuval Shaia
The function pvrdma_idx_ring_is_valid_idx is not in used so let's remove it. Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com> Acked-by: Adit Ranadive <aditr@vmware.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22i40iw: Improve CQP timeout logicShiraz Saleem
The current timeout logic for Control Queue-Pair (CQP) OPs does not take into account whether CQP makes progress but rather blindly waits for a large timeout value, 100000 jiffies for the completion event. Improve this by setting the timeout based on whether the CQP is making progress or not. If the CQP is hung, the timeout will happen sooner, in 5000 jiffies. Each time the CQP progress is detetcted, the timeout extends by 5000 jiffies. Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Christopher N Bednarz <christopher.n.bednarz@intel.com> Signed-off-by: Henry Orosco <henry.orosco@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-23Merge branch 'linux-4.14' of git://github.com/skeggsb/linux into drm-nextDave Airlie
Not a lot that's ready to be included this round for Nouveau. GP108 modesetting support, and misc other fixes. * 'linux-4.14' of git://github.com/skeggsb/linux: drm/nouveau/kms/nv50: perform null check on msto[i] rathern than msto drm/nouveau/pci/msi: disable MSI on big-endian platforms by default drm/nouveau: silence suspend/resume debugging messages drm/nouveau/kms/nv04-nv4x: fix exposed format list drm/nouveau/kms/nv10-nv40: add NV21 support to overlay drm/nouveau/kms/nv04-nv40: improve overlay error detection, fix pitch setting drm/nouveau/kms/nv04-nv40: prevent undisplayable framebuffers from creation drm/nouveau/mpeg: print more debug info when rejecting dma objects drm/nouveau/fb/gf100-: zero mmu debug buffers drm/nouveau/bar/gf100: add config option to limit BAR2 to 16MiB initial support (display-only) for GP108 drm/nouveau/falcon: use a more reasonable msgqueue timeout value drm/nouveau/disp: Silence DCB warnings. drm/nouveau/bios: Demote missing fp table message to NV_DEBUG. drm/nouveau/pmu/gt215-: abstract detection of whether reset is needed drm/nouveau/pmu/gt215: fix reset drm/nouveau/mc/gf100: add pmu to reset mask drm/nouveau/disp/gf119-: avoid creating non-existent heads drm/nouveau/therm/gm200: Added drm/nouveau/therm: fix spelling mistake on array thresolds
2017-08-22IB/hfi1: Add kernel receive context info to debugfsKaike Wan
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Kaike Wan <kaike.wan@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Remove HFI1_VERBS_31BIT_PSN optionGrzegorz Morys
Remove HFI1_VERBS_31BIT_PSN Kconfig option leaving only 31-bit PSNs available. The option was implemented in the early days of the driver and is no longer needed. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Grzegorz Morys <grzegorz.morys@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Remove pstate from hfi1_pportdataJakub Byczkowski
Do not track physical state separately from host_link_state. Deduce physical state from host_link_state when required. Change cache_physical_state to log_physical_state to make sure host_link_state reflects hardwares physical state properly. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Stricter bounds checking of MAD trap indexKamenee Arumugame
The macro size is valid. This change makes it less ambiguous. Bounds check trap type for better security. Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Kamenee Arumugam <kamenee.arumugam@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Load fallback platform configuration per HFI deviceJakub Byczkowski
Currently fallback configuration is loaded once per driver instance. With multiple HFI devices in the same system the current code may not load the platform config data for the device. Change fallback platform config data loading to be per device. Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add flag for platform config scratch register readJakub Byczkowski
Add flag in pport data structure to determine when platform config was read from scratch registers. Change conditions in parse_platform_config and get_platform_config_field to use the new flag. Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Document phys port state bits not used in IBDennis Dalessandro
A couple bits are used by OPA for link physical state that are not present as part of InfiniBand. Add a short blurb what those states mean and removed an unused state. Cc: Leon Romanovsky <leon@kernel.org> Reviewed-by: Todd Rimmer <todd.rimmer@intel.com> Reviewed-by: Brent Rothermel <brent.r.rothermel@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Check xchg returned value for queuing link down entrySebastian Sanchez
Check xchg returned value for queuing link down entry to guarantee proper atomic value reads. Fixes: 626c077c025f ("IB/hfi1: Prevent link down request double queuing") Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: fix spelling mistake: "Maximim" -> "Maximum"Colin Ian King
Trivial fix to spelling mistake in pr_warn_ratelimited warning message Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Enable RDMA_CAP_OPA_AH in hfi driver to support extended LIDsDasaratharaman Chandramouli
Enabling this bit helps core components query for extended address support using the rdma_cap_opa_ah interface. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Enhance PIO/SDMA send for 16BDon Hiatt
PIO/SDMA send logic now uses the hdr_type field to determine the type of packet that has been constructed. Based on the hdr_type, certain things such as PBC flags, padding count and the LT extra trailing bytes are determined. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add 16B RC/UC supportDon Hiatt
Add 16B bypass packet support for RC/UC traffic types. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/rdmavt, hfi1, qib: Enhance rdmavt and hfi1 to use 32 bit lidsDasaratharaman Chandramouli
Increase lid used in hfi1 driver to 32 bits. qib continues to use 16 bit lids. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add 16B trace supportDon Hiatt
Add trace support to 16B bypass packets during send and receive. Sample input header trace: <idle>-0 [000] d.h. 271742.509477: input_ibhdr: [0000:05:00.0] (16B) len:24 sc:0 dlid:0xf0000b slid:0x10002 age:0 becn:0 fecn:0 l4:10 rc:0 sc:0 pkey:0x8001 entropy:0x0000 op:0x65,UD_SEND_ONLY_WITH_IMMEDIATE se:0 m:1 pad:3 tver:0 qpn:0xffffff a:0 psn:0x00000001 hlen:248 deth qkey 0x01234567 sqpn 0x000004 Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add 16B UD supportDon Hiatt
Add 16B bypass packet support for UD traffic types. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Determine 9B/16B L2 header type based on Address handleDon Hiatt
When address handle attributes are initialized, the LIDs are transformed to be in the 32 bit LID space. When constructing the header, hfi1 driver will look at the LID to determine the packet header to be created. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add support to process 16B header errorsDon Hiatt
Enhance hdr_rcverr() to also handle errors during 16B bypass packet receive. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add support to send 16B bypass packetsDon Hiatt
We introduce struct hfi1_opa_header as a union of ib (9B) and 16B headers. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Add support to receive 16B bypass packetsDon Hiatt
We introduce a struct hfi1_16b_header to support 16B headers. 16B bypass packets are received by the driver and processed similar to 9B packets. Add basic support to handle 16B packets. Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/rdmavt, hfi1, qib: Modify check_ah() to account for extended LIDsDon Hiatt
rvt_check_ah() delegates lid verification to underlying driver. Underlying driver uses different conditions to check for dlid depending on whether the device supports extended LIDs Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Don Hiatt <don.hiatt@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hf1: User context locking is inconsistentMichael J. Ruhl
There is a mixture of mutex and spinlocks to protect receive context (rcd/uctxt) information. This is not used consistently. Use the mutex to protect device receive context information only. Use the spinlock to protect sub context information only. Protect access to items in the rcd array with a spinlock and reference count. Remove spinlock around dd->rcd array cleanup. Since interrupts are disabled and cleaned up before this point, this lock is not useful. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Protect context array set/clear with spinlockMichael J. Ruhl
The rcd array can be accessed from user context or during interrupts. Protecting this with a mutex isn't a good idea because the mutex should not be used from an IRQ. Protect the allocation and freeing of rcd array elements with a spinlock. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Use host_link_state to read state when DC is shut downBartlomiej Dudek
When DC is shut down (by e.g. disconnecting the cable), the driver should use host_link_state to get port's current physical state. This is due to the fact that physical state is read from DC's CSRs and when DC is shut down and state is changed, its registers are not impacted. Reviewed-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Bartlomiej Dudek <bartlomiej.dudek@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Remove lstate from hfi1_pportdataByczkowski, Jakub
Do not track logical state separately from host_link_state. Deduce logical state from host_link_state when required. Transitions in set_link_state and goto_offline already make sure host_link_state reflects hardware's logical state properly. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Jakub Byczkowski <jakub.byczkowski@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Remove pmtu from the QP structureSebastian Sanchez
The pmtu field doens't have be stored in the QP structure as it can easily be calculated when needed. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/hfi1: Revert egress pkey check enforcementAlex Estrin
Current code has some serious flaws. Disarm the flag pending an appropriate patch. Fixes: 53526500f301 ("IB/hfi1: Permanently enable P_Key checking in HFI") Cc: stable@vger.kernel.org Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Signed-off-by: Alex Estrin <alex.estrin@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22ipv6: add rcu grace period before freeing fib6_nodeWei Wang
We currently keep rt->rt6i_node pointing to the fib6_node for the route. And some functions make use of this pointer to dereference the fib6_node from rt structure, e.g. rt6_check(). However, as there is neither refcount nor rcu taken when dereferencing rt->rt6i_node, it could potentially cause crashes as rt->rt6i_node could be set to NULL by other CPUs when doing a route deletion. This patch introduces an rcu grace period before freeing fib6_node and makes sure the functions that dereference it takes rcu_read_lock(). Note: there is no "Fixes" tag because this bug was there in a very early stage. Signed-off-by: Wei Wang <weiwan@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22IB/core: Fix input len in multiple user verbsAmrani, Ram
Most user verbs pass user data to the kernel with the inclusion of the ib_uverbs_cmd_hdr structure. This is problematic because the vendor has no ideas if the verb was called by a legacy verb or an extended verb. Also, the incosistency between the verbs is confusing. Fixes: 565197dd8fb1 ("IB/core: Extend ib_uverbs_create_cq") Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com> Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22mlx5: Replace PCI pool old APIRomain Perier
The PCI pool API is deprecated. This commit replaces the PCI pool old API by the appropriate function with the DMA pool API. Signed-off-by: Romain Perier <romain.perier@collabora.com> Reviewed-by: Peter Senna Tschudin <peter.senna@collabora.com> Acked-by: Doug Ledford <dledford@redhat.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22mlx4: Replace PCI pool old APIRomain Perier
The PCI pool API is deprecated. This commit replaces the PCI pool old API by the appropriate function with the DMA pool API. Signed-off-by: Romain Perier <romain.perier@collabora.com> Acked-by: Peter Senna Tschudin <peter.senna@collabora.com> Tested-by: Peter Senna Tschudin <peter.senna@collabora.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Doug Ledford <dledford@redhat.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22IB/mthca: Replace PCI pool old APIRomain Perier
The PCI pool API is deprecated. This commit replaces the PCI pool old API by the appropriate function with the DMA pool API. Signed-off-by: Romain Perier <romain.perier@collabora.com> Acked-by: Peter Senna Tschudin <peter.senna@collabora.com> Tested-by: Peter Senna Tschudin <peter.senna@collabora.com> Acked-by: Doug Ledford <dledford@redhat.com> Tested-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2017-08-22RDMA/uverbs: Initialize cq_context appropriatelyBharat Potnuri
Initializing cq_context with ev_queue in create_cq(), leads to NULL pointer dereference in ib_uverbs_comp_handler(), if application doesnot use completion channel. This patch fixes the cq_context initialization. Fixes: 1e7710f3f65 ("IB/core: Change completion channel to use the reworked") Cc: stable@vger.kernel.org # 4.12 Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com> Reviewed-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com> (cherry picked from commit 699a2d5b1b880b4e4e1c7d55fa25659322cf5b51)
2017-08-22arm64: cleanup {COMPAT_,}SET_PERSONALITY() macroYury Norov
There is some work that should be done after setting the personality. Currently it's done in the macro, which is not the best idea. In this patch new arch_setup_new_exec() routine is introduced, and all setup code is moved there, as suggested by Catalin: https://lkml.org/lkml/2017/8/4/494 Cc: Pratyush Anand <panand@redhat.com> Signed-off-by: Yury Norov <ynorov@caviumnetworks.com> [catalin.marinas@arm.com: comments changed or removed] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2017-08-22Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== pull request (net): ipsec 2017-08-21 1) Fix memleaks when ESP takes an error path. 2) Fix null pointer dereference when creating a sub policy that matches the same outer flow as main policy does. From Koichiro Den. 3) Fix possible out-of-bound access in xfrm_migrate. This patch should go to the stable trees too. From Vladis Dronov. 4) ESP can return positive and negative error values, so treat both cases as an error. Please pull or let me know if there are problems. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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