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2019-03-12net/mlx4_core: Fix reset flow when in command polling modeJack Morgenstein1-0/+1
As part of unloading a device, the driver switches from FW command event mode to FW command polling mode. Part of switching over to polling mode is freeing the command context array memory (unfortunately, currently, without NULLing the command context array pointer). The reset flow calls "complete" to complete all outstanding fw commands (if we are in event mode). The check for event vs. polling mode here is to test if the command context array pointer is NULL. If the reset flow is activated after the switch to polling mode, it will attempt (incorrectly) to complete all the commands in the context array -- because the pointer was not NULLed when the driver switched over to polling mode. As a result, we have a use-after-free situation, which results in a kernel crash. For example: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff876c4a8e>] __wake_up_common+0x2e/0x90 PGD 0 Oops: 0000 [#1] SMP Modules linked in: netconsole nfsv3 nfs_acl nfs lockd grace ... CPU: 2 PID: 940 Comm: kworker/2:3 Kdump: loaded Not tainted 3.10.0-862.el7.x86_64 #1 Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS 090006 04/28/2016 Workqueue: events hv_eject_device_work [pci_hyperv] task: ffff8d1734ca0fd0 ti: ffff8d17354bc000 task.ti: ffff8d17354bc000 RIP: 0010:[<ffffffff876c4a8e>] [<ffffffff876c4a8e>] __wake_up_common+0x2e/0x90 RSP: 0018:ffff8d17354bfa38 EFLAGS: 00010082 RAX: 0000000000000000 RBX: ffff8d17362d42c8 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000003 RDI: ffff8d17362d42c8 RBP: ffff8d17354bfa70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000298 R11: ffff8d173610e000 R12: ffff8d17362d42d0 R13: 0000000000000246 R14: 0000000000000000 R15: 0000000000000003 FS: 0000000000000000(0000) GS:ffff8d1802680000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000f16d8000 CR4: 00000000001406e0 Call Trace: [<ffffffff876c7adc>] complete+0x3c/0x50 [<ffffffffc04242f0>] mlx4_cmd_wake_completions+0x70/0x90 [mlx4_core] [<ffffffffc041e7b1>] mlx4_enter_error_state+0xe1/0x380 [mlx4_core] [<ffffffffc041fa4b>] mlx4_comm_cmd+0x29b/0x360 [mlx4_core] [<ffffffffc041ff51>] __mlx4_cmd+0x441/0x920 [mlx4_core] [<ffffffff877f62b1>] ? __slab_free+0x81/0x2f0 [<ffffffff87951384>] ? __radix_tree_lookup+0x84/0xf0 [<ffffffffc043a8eb>] mlx4_free_mtt_range+0x5b/0xb0 [mlx4_core] [<ffffffffc043a957>] mlx4_mtt_cleanup+0x17/0x20 [mlx4_core] [<ffffffffc04272c7>] mlx4_free_eq+0xa7/0x1c0 [mlx4_core] [<ffffffffc042803e>] mlx4_cleanup_eq_table+0xde/0x130 [mlx4_core] [<ffffffffc0433e08>] mlx4_unload_one+0x118/0x300 [mlx4_core] [<ffffffffc0434191>] mlx4_remove_one+0x91/0x1f0 [mlx4_core] The fix is to set the command context array pointer to NULL after freeing the array. Fixes: f5aef5aa3506 ("net/mlx4_core: Activate reset flow upon fatal command cases") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-12mlxsw: minimal: Initialize base_macJiri Pirko1-0/+18
Currently base_mac is not initialized which causes wrong reporting of zeroed parent_id to userspace. Fix this by initializing base_mac properly. Fixes: c100e47caa8e ("mlxsw: minimal: Add ethtool support") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-12mlxsw: core: Prevent duplication during QSFP module initializationVadim Pasternak1-10/+11
Verify during thermal initialization if QSFP module's entry is already configured in order to prevent duplication. Such scenario could happen in case two switch drivers (PCI and I2C based) coexist and if after boot, splitting configuration is applied for some ports and then I2C based driver is re-probed. In such case after reboot same QSFP module, associated with split will be discovered by I2C based driver few times, and it will cause a crash. It could happen for example on system equipped with BMC (Baseboard Management Controller), running I2C based driver, when the next steps are performed: - System boot - Host side configures port spilt. - BMC side is rebooted. Fixes: 6a79507cfe94 ("mlxsw: core: Extend thermal module with per QSFP module thermal zones") Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-12net: dwmac-sun8i: fix a missing check of of_get_phy_modeKangjie Lu1-1/+4
of_get_phy_mode may fail and return a negative error code; the fix checks the return value of of_get_phy_mode and returns -EINVAL of it fails. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-12net: sh_eth: fix a missing check of of_get_phy_modeKangjie Lu1-1/+5
of_get_phy_mode may fail and return a negative error code; the fix checks the return value of of_get_phy_mode and returns NULL of it fails. Fixes: b356e978e92f ("sh_eth: add device tree support") Signed-off-by: Kangjie Lu <kjlu@umn.edu> Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-12net: 8390: fix potential NULL pointer dereferencesKangjie Lu1-0/+10
In case ioremap fails, the fix releases resources and returns to avoid NULL pointer dereferences. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-12net: fujitsu: fix a potential NULL pointer dereferenceKangjie Lu1-0/+5
In case ioremap fails, the fix releases the pcmcia window and returns -ENOMEM to avoid the NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-12net: qlogic: fix a potential NULL pointer dereferenceKangjie Lu1-0/+6
In case create_singlethread_workqueue fails, the fix returns -ENOMEM to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11Merge tag 'mlx5-fixes-2019-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller8-101/+128
Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2019-03-11 For -stable v5.0: ('net/mlx5e: Fix access to non-existing receive queue') ('net/mlx5e: Properly get the PF number phys port name ndo') ('net/mlx5: Fix multiple updates of steering rules in parallel') ('net/mlx5: Avoid panic when setting vport mac, getting vport config') ('net/mlx5: Avoid panic when setting vport rate') ('net/mlx5e: IPoIB, Fix RX checksum statistics update') ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11net: rocker: fix a potential NULL pointer dereferenceKangjie Lu1-0/+5
In case kzalloc fails, the fix releases resources and returns NOTIFY_BAD to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11net: qlge: fix a potential NULL pointer dereferenceKangjie Lu1-0/+5
In case alloc_ordered_workqueue fails, the fix returns -ENOMEM to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11net: thunder: fix a potential NULL pointer dereferenceKangjie Lu1-0/+6
In case alloc_ordered_workqueue fails, the fix reports the error and returns -ENOMEM. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11net: lio_core: fix two NULL pointer dereferencesKangjie Lu1-0/+10
In case octeon_alloc_soft_command fails, the fix reports the error and returns to avoid NULL pointer dereferences. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11lan743x: Fix RX Kernel PanicBryan Whitehead1-14/+32
It has been noticed that running the speed test at www.speedtest.net occasionally causes a kernel panic. Investigation revealed that under this test RX buffer allocation sometimes fails and returns NULL. But the lan743x driver did not handle this case. This patch fixes this issue by attempting to allocate a buffer before sending the new rx packet to the OS. If the allocation fails then the new rx packet is dropped and the existing buffer is reused in the DMA ring. Updates for v2: Additional 2 locations where allocation was not checked, has been changed to reuse existing buffer. Fixes: 23f0703c125b ("lan743x: Add main source files for new lan743x driver") Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11net: liquidio: fix a NULL pointer dereferenceKangjie Lu1-0/+5
In case octeon_alloc_soft_command fails, the fix reports the error and returns to avoid NULL pointer dereference. Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-11net/mlx5: Avoid panic when setting vport rateTonghao Zhang1-4/+9
If we try to set VFs rate on a VF (not PF) net device, the kernel will be crash. The commands are show as below: $ echo 2 > /sys/class/net/$MLX_PF0/device/sriov_numvfs $ ip link set $MLX_VF0 vf 0 max_tx_rate 2 min_tx_rate 1 If not applied the first patch ("net/mlx5: Avoid panic when setting vport mac, getting vport config"), the command: $ ip link set $MLX_VF0 vf 0 rate 100 can also crash the kernel. [ 1650.006388] RIP: 0010:mlx5_eswitch_set_vport_rate+0x1f/0x260 [mlx5_core] [ 1650.007092] do_setlink+0x982/0xd20 [ 1650.007129] __rtnl_newlink+0x528/0x7d0 [ 1650.007374] rtnl_newlink+0x43/0x60 [ 1650.007407] rtnetlink_rcv_msg+0x2a2/0x320 [ 1650.007484] netlink_rcv_skb+0xcb/0x100 [ 1650.007519] netlink_unicast+0x17f/0x230 [ 1650.007554] netlink_sendmsg+0x2d2/0x3d0 [ 1650.007592] sock_sendmsg+0x36/0x50 [ 1650.007625] ___sys_sendmsg+0x280/0x2a0 [ 1650.007963] __sys_sendmsg+0x58/0xa0 [ 1650.007998] do_syscall_64+0x5b/0x180 [ 1650.009438] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: c9497c98901c ("net/mlx5: Add support for setting VF min rate") Cc: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5: Avoid panic when setting vport mac, getting vport configTonghao Zhang1-2/+2
If we try to set VFs mac address on a VF (not PF) net device, the kernel will be crash. The commands are show as below: $ echo 2 > /sys/class/net/$MLX_PF0/device/sriov_numvfs $ ip link set $MLX_VF0 vf 0 mac 00:11:22:33:44:00 [exception RIP: mlx5_eswitch_set_vport_mac+41] [ffffb8b7079e3688] do_setlink at ffffffff8f67f85b [ffffb8b7079e37a8] __rtnl_newlink at ffffffff8f683778 [ffffb8b7079e3b68] rtnl_newlink at ffffffff8f683a63 [ffffb8b7079e3b90] rtnetlink_rcv_msg at ffffffff8f67d812 [ffffb8b7079e3c10] netlink_rcv_skb at ffffffff8f6b88ab [ffffb8b7079e3c60] netlink_unicast at ffffffff8f6b808f [ffffb8b7079e3ca0] netlink_sendmsg at ffffffff8f6b8412 [ffffb8b7079e3d18] sock_sendmsg at ffffffff8f6452f6 [ffffb8b7079e3d30] ___sys_sendmsg at ffffffff8f645860 [ffffb8b7079e3eb0] __sys_sendmsg at ffffffff8f647a38 [ffffb8b7079e3f38] do_syscall_64 at ffffffff8f00401b [ffffb8b7079e3f50] entry_SYSCALL_64_after_hwframe at ffffffff8f80008c and [exception RIP: mlx5_eswitch_get_vport_config+12] [ffffa70607e57678] mlx5e_get_vf_config at ffffffffc03c7f8f [mlx5_core] [ffffa70607e57688] do_setlink at ffffffffbc67fa59 [ffffa70607e577a8] __rtnl_newlink at ffffffffbc683778 [ffffa70607e57b68] rtnl_newlink at ffffffffbc683a63 [ffffa70607e57b90] rtnetlink_rcv_msg at ffffffffbc67d812 [ffffa70607e57c10] netlink_rcv_skb at ffffffffbc6b88ab [ffffa70607e57c60] netlink_unicast at ffffffffbc6b808f [ffffa70607e57ca0] netlink_sendmsg at ffffffffbc6b8412 [ffffa70607e57d18] sock_sendmsg at ffffffffbc6452f6 [ffffa70607e57d30] ___sys_sendmsg at ffffffffbc645860 [ffffa70607e57eb0] __sys_sendmsg at ffffffffbc647a38 [ffffa70607e57f38] do_syscall_64 at ffffffffbc00401b [ffffa70607e57f50] entry_SYSCALL_64_after_hwframe at ffffffffbc80008c Fixes: a8d70a054a718 ("net/mlx5: E-Switch, Disallow vlan/spoofcheck setup if not being esw manager") Cc: Eli Cohen <eli@mellanox.com> Signed-off-by: Tonghao Zhang <xiangxia.m.yue@gmail.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5e: Fix access to non-existing receive queueTariq Toukan1-0/+3
In case number of channels is changed while interface is down, RSS indirection table is mistakenly not modified accordingly, causing access to out-of-range non-existing object. Fix by updating the RSS indireciton table also in the early return flow of interface down. Fixes: fb35c534b788 ("net/mlx5e: Fix NULL pointer derefernce in set channels error flow") Fixes: bbeb53b8b2c9 ("net/mlx5e: Move RSS params to a dedicated struct") Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Tested-by: Maria Pasechnik <mariap@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5e: IPoIB, Fix RX checksum statistics updateFeras Daoud1-3/+8
Update the RX checksum only if the feature is enabled. Fixes: 9d6bd752c63c ("net/mlx5e: IPoIB, RX handler") Signed-off-by: Feras Daoud <ferasda@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5: Remove redundant lag function to get pf numRoi Dayan2-23/+0
The function is not being used. Signed-off-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5e: Properly get the PF number phys port name ndoRoi Dayan1-6/+7
Currently, we fail to retrieve the PF number in some cases (e.g single ported cards, lag capability), this further results in a call trace issued by the rtnetlink code, since the error value is not -EOPNOTSUPP. Change the implementation to be independent from the lag code and function properly on both two ports and single ported cards. Call Trace: [ 194.525057] mlx5_core 0000:82:00.0: mlx5_lag_get_pf_num:605:(pid 837): no lag device, can't get pf num [ 194.525804] WARNING: CPU: 7 PID: 837 at net/core/rtnetlink.c:3457 rtmsg_ifinfo_build_skb+0x131/0x160 [ 194.529952] CPU: 7 PID: 837 Comm: kworker/7:3 Tainted: G W O 5.0.0-rc7+ #3 [ 194.531307] Workqueue: events linkwatch_event [ 194.531697] RIP: 0010:rtmsg_ifinfo_build_skb+0x131/0x160 [ 194.545007] Call Trace: [ 194.545406] rtmsg_ifinfo_event.part.29+0x1b/0xb0 [ 194.545810] rtmsg_ifinfo+0x51/0x80 [ 194.546209] netdev_state_change+0xc7/0x110 [ 194.546608] ? dev_valid_name+0x1b0/0x1b0 [ 194.547010] ? __local_bh_enable_ip+0xef/0x1d0 [ 194.547411] ? lockdep_hardirqs_on+0x3ea/0x560 [ 194.547811] ? linkwatch_do_dev+0x9b/0x100 [ 194.548207] linkwatch_do_dev+0x9b/0x100 [ 194.548605] __linkwatch_run_queue+0x244/0x430 [ 194.549014] ? linkwatch_schedule_work+0x100/0x100 [ 194.549412] ? lock_acquire+0x10f/0x2d0 [ 194.549816] linkwatch_event+0x3f/0x50 [ 194.550212] process_one_work+0x7d3/0x1460 Fixes: c12ecc230564 ("net/mlx5e: Move to use common phys port names for vport representors") Signed-off-by: Roi Dayan <roid@mellanox.com> Acked-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5: Consolidate update FTE for all removal changesEli Britstein1-6/+25
With commit a18e879d4e45 ("net/mlx5e: Annul encap action ordering requirement") and a use-case of e-switch remote mirroring, the incremental/stepped FTE removal process done by the fs core got us to illegal transient states and FW errors: SET_FLOW_TABLE_ENTRY(0x936) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x9c2e40) To avoid that and improve FTE removal performance, aggregate the FTE's updates that should be applied. Remove the FTE if it is empty, or apply one FW update command with the aggregated updates. Fixes: a18e879d4e45 ("net/mlx5e: Annul encap action ordering requirement") Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5: Add a locked flag to node removal functionsEli Britstein1-42/+44
Add a locked flag to the node removal functions to signal if the parent is already locked from the caller function or not as a pre-step towards outside lock. Currently always use false with no functional change. Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5: Add modify FTE helper functionEli Britstein2-21/+30
Add modify FTE helper function and use it when deleting a rule, as a pre-step towards consolidated FTE modification, with no functional change. Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-11net/mlx5: Fix multiple updates of steering rules in parallelEli Britstein1-0/+6
There might be a condition where the fte found is not active yet. In this case we should not use it, but continue to search for another, or allocate a new one. Fixes: bd71b08ec2ee ("net/mlx5: Support multiple updates of steering rules in parallel") Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2019-03-09net: hns3: fix to stop multiple HNS reset due to the AER changesShiju Jose3-3/+11
The commit bfcb79fca19d ("PCI/ERR: Run error recovery callbacks for all affected devices") affected the non-fatal error recovery logic for the HNS and RDMA devices. This is because each HNS PF under PCIe bus receive callbacks from the AER driver when an error is reported for one of the PF. This causes unwanted PF resets because the HNS decides which PF to reset based on the reset type set. The HNS error handling code sets the reset type based on the hw error type detected. This patch provides fix for the above issue for the recovery of the hw errors in the HNS and RDMA devices. This patch needs backporting to the kernel v5.0+ Fixes: 332fbf576579 ("net: hns3: add handling of hw ras errors using new set of commands") Reported-by: Xiaofei Tan <tanxiaofei@huawei.com> Signed-off-by: Shiju Jose <shiju.jose@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-08net: stmmac: Avoid one more sometimes uninitialized Clang warningNathan Chancellor1-1/+1
When building with -Wsometimes-uninitialized, Clang warns: drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c:111:2: error: variable 'ns' is used uninitialized whenever 'if' condition is false [-Werror,-Wsometimes-uninitialized] drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c:111:2: error: variable 'ns' is used uninitialized whenever '&&' condition is false [-Werror,-Wsometimes-uninitialized] Clang is concerned with the use of stmmac_do_void_callback (which stmmac_get_systime wraps), as it may fail to initialize these values if the if condition was ever false (meaning the callback doesn't exist). It's not wrong because the callback is what initializes ns. While it's unlikely that the callback is going to disappear at some point and make that condition false, we can easily avoid this warning by zero initializing the variable. Link: https://github.com/ClangBuiltLinux/linux/issues/384 Fixes: df103170854e ("net: stmmac: Avoid sometimes uninitialized Clang warnings") Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-08net: ethernet: sun: Zero initialize class in default case in niu_add_ethtool_tcam_entryNathan Chancellor1-0/+1
When building with -Wsometimes-uninitialized, Clang warns: drivers/net/ethernet/sun/niu.c:7466:5: warning: variable 'class' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] The default case can never happen because i can only be 0 to 3 (NIU_L3_PROG_CLS is defined as 4). To make this clear to Clang, just zero initialize class in the default case (use the macro CLASS_CODE_UNRECOG to make it clear this shouldn't happen). Link: https://github.com/ClangBuiltLinux/linux/issues/403 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-088139too : Add support for U.S. Robotics USR997901A 10/100 Cardbus NICMatthew Whitehead1-0/+1
Add PCI vendor and device identifier for U.S. Robotics USR997901A 10/100 Cardbus NIC. Tested on real hardware. Signed-off-by: Matthew Whitehead <tedheadster@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-08net: hns3: add dma_rmb() for rx descriptionJian Shen1-0/+2
HW can not guarantee complete write desc->rx.size, even though HNS3_RXD_VLD_B has been set. Driver needs to add dma_rmb() instruction to make sure desc->rx.size is always valid. Fixes: e55970950556 ("net: hns3: Add handling of GRO Pkts not fully RX'ed in NAPI poll") Signed-off-by: Jian Shen <shenjian15@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-08net: ethernet: stmmac: add management of clk_csr propertyChristophe Roullier1-0/+3
In Documentation stmmac.txt there is possibility to fixed CSR Clock range selection with property clk_csr. This patch add the management of this property For example to use it, add in your ethernet node DT: clk_csr = <3>; Signed-off-by: Christophe Roullier <christophe.roullier@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-08net: ethernet: stmmac: update to support all PHY config for stm32mp157c.Christophe Roullier1-21/+86
Update glue codes to support all PHY config on stm32mp157c PHY_MODE (MII,GMII, RMII, RGMII) and in normal, PHY wo crystal (25Mhz), PHY wo crystal (50Mhz), No 125Mhz from PHY config. Signed-off-by: Christophe Roullier <christophe.roullier@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-08net: ethernet: stmmac: manage Ethernet WoL for stm32mp157c.Christophe Roullier1-1/+29
Add glue codes to support magic packet on stm32mp157c Signed-off-by: Christophe Roullier <christophe.roullier@st.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07nfp: fix simple vNIC mailbox lengthDirk van der Merwe1-1/+1
The simple vNIC mailbox length should be 12 decimal and not 0x12. Using a decimal also makes it clear this is a length value and not another field within the simple mailbox defines. Found by code inspection, there are no known firmware configurations where this would cause issues. Fixes: 527d7d1b9949 ("nfp: read mailbox address from TLV caps") Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07net: stmmac: Avoid sometimes uninitialized Clang warningsNathan Chancellor1-3/+3
When building with -Wsometimes-uninitialized, Clang warns: drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:495:3: warning: variable 'ns' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:495:3: warning: variable 'ns' is used uninitialized whenever '&&' condition is false [-Wsometimes-uninitialized] drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:532:3: warning: variable 'ns' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:532:3: warning: variable 'ns' is used uninitialized whenever '&&' condition is false [-Wsometimes-uninitialized] drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:741:3: warning: variable 'sec_inc' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:741:3: warning: variable 'sec_inc' is used uninitialized whenever '&&' condition is false [-Wsometimes-uninitialized] Clang is concerned with the use of stmmac_do_void_callback (which stmmac_get_timestamp and stmmac_config_sub_second_increment wrap), as it may fail to initialize these values if the if condition was ever false (meaning the callbacks don't exist). It's not wrong because the callbacks (get_timestamp and config_sub_second_increment respectively) are the ones that initialize the variables. While it's unlikely that the callbacks are ever going to disappear and make that condition false, we can easily avoid this warning by zero initialize the variables. Link: https://github.com/ClangBuiltLinux/linux/issues/384 Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07qede: Fix internal loopback failure with jumbo mtu configurationSudarsana Reddy Kalluru1-2/+5
Driver uses port-mtu as packet-size for the loopback traffic. This patch limits the max packet size to 1.5K to avoid data being split over multiple buffer descriptors (BDs) in cases where MTU > PAGE_SIZE. Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07enic: fix build warning without CONFIG_CPUMASK_OFFSTACKArnd Bergmann1-3/+3
The enic driver relies on the CONFIG_CPUMASK_OFFSTACK feature to dynamically allocate a struct member, but this is normally intended for local variables. Building with clang, I get a warning for a few locations that check the address of the cpumask_var_t: drivers/net/ethernet/cisco/enic/enic_main.c:122:22: error: address of array 'enic->msix[i].affinity_mask' will always evaluate to 'true' [-Werror,-Wpointer-bool-conversion] As far as I can tell, the code is still correct, as the truth value of the pointer is what we need in this configuration. To get rid of the warning, use cpumask_available() instead of checking the pointer directly. Fixes: 322cf7e3a4e8 ("enic: assign affinity hint to interrupts") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07ravb: Decrease TxFIFO depth of Q3 and Q2 to oneMasaru Nagai1-1/+1
Hardware has the CBS (Credit Based Shaper) which affects only Q3 and Q2. When updating the CBS settings, even if the driver does so after waiting for Tx DMA finished, there is a possibility that frame data still remains in TxFIFO. To avoid this, decrease TxFIFO depth of Q3 and Q2 to one. This patch has been exercised this using netperf TCP_MAERTS, TCP_STREAM and UDP_STREAM tests run on an Ebisu board. No performance change was detected, outside of noise in the tests, both in terms of throughput and CPU utilisation. Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper") Signed-off-by: Masaru Nagai <masaru.nagai.vx@renesas.com> Signed-off-by: Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> [simon: updated changelog] Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-07davinci_emac: always build in CONFIG_OF codeArnd Bergmann1-3/+1
clang warns about what seems to be an unintended use of an obscure C language feature where a forward declaration of an array remains usable when the final definition is never seen: drivers/net/ethernet/ti/davinci_emac.c:1694:34: error: tentative array definition assumed to have one element [-Werror] static const struct of_device_id davinci_emac_of_match[]; There is no harm in always enabling the device tree matching code here, and it makes the code behave in a more conventional way aside from avoiding the warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-06net: hns3: Fix a logical vs bitwise typoDan Carpenter1-2/+2
There were a couple logical ORs accidentally mixed in with the bitwise ORs. Fixes: e8149933b1fa ("net: hns3: remove hnae3_get_bit in data path") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-05Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds1-4/+5
Pull crypto update from Herbert Xu: "API: - Add helper for simple skcipher modes. - Add helper to register multiple templates. - Set CRYPTO_TFM_NEED_KEY when setkey fails. - Require neither or both of export/import in shash. - AEAD decryption test vectors are now generated from encryption ones. - New option CONFIG_CRYPTO_MANAGER_EXTRA_TESTS that includes random fuzzing. Algorithms: - Conversions to skcipher and helper for many templates. - Add more test vectors for nhpoly1305 and adiantum. Drivers: - Add crypto4xx prng support. - Add xcbc/cmac/ecb support in caam. - Add AES support for Exynos5433 in s5p. - Remove sha384/sha512 from artpec7 as hardware cannot do partial hash" [ There is a merge of the Freescale SoC tree in order to pull in changes required by patches to the caam/qi2 driver. ] * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (174 commits) crypto: s5p - add AES support for Exynos5433 dt-bindings: crypto: document Exynos5433 SlimSSS crypto: crypto4xx - add missing of_node_put after of_device_is_available crypto: cavium/zip - fix collision with generic cra_driver_name crypto: af_alg - use struct_size() in sock_kfree_s() crypto: caam - remove redundant likely/unlikely annotation crypto: s5p - update iv after AES-CBC op end crypto: x86/poly1305 - Clear key material from stack in SSE2 variant crypto: caam - generate hash keys in-place crypto: caam - fix DMA mapping xcbc key twice crypto: caam - fix hash context DMA unmap size hwrng: bcm2835 - fix probe as platform device crypto: s5p-sss - Use AES_BLOCK_SIZE define instead of number crypto: stm32 - drop pointless static qualifier in stm32_hash_remove() crypto: chelsio - Fixed Traffic Stall crypto: marvell - Remove set but not used variable 'ivsize' crypto: ccp - Update driver messages to remove some confusion crypto: adiantum - add 1536 and 4096-byte test vectors crypto: nhpoly1305 - add a test vector with len % 16 != 0 crypto: arm/aes-ce - update IV after partial final CTR block ...
2019-03-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-3/+11
2019-03-04sky2: Disable MSI on Dell Inspiron 1545 and Gateway P-79Kai-Heng Feng1-1/+23
Some sky2 chips fire IRQ after S3, before the driver is fully resumed: [ 686.804877] do_IRQ: 1.37 No irq handler for vector This is likely a platform bug that device isn't fully quiesced during S3. Use MSI-X, maskable MSI or INTx can prevent this issue from happening. Since MSI-X and maskable MSI are not supported by this device, fallback to use INTx on affected platforms. BugLink: https://bugs.launchpad.net/bugs/1807259 BugLink: https://bugs.launchpad.net/bugs/1809843 Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-04net/mlx5e: Update tx reporter status in case channels were successfully openedEran Ben Elisha1-0/+4
Once channels were successfully opened, update tx reporter health state to healthy. This is needed for the following scenario: - SQ has an un-recovered error reported to the devlink health, resulting tx reporter state to be error. - Current channels (including this SQ) are closed - New channels are opened After that flow, the original error was "solved", and tx reporter state should be healthy. However, as it was resolved as a side effect, and not via tx reporter recover method, driver needs to inform devlink health about it. Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-04cxgb4/chtls: Prefix adapter flags with CXGB4Arjun Vynipadath11-104/+105
Some of these macros were conflicting with global namespace, hence prefixing them with CXGB4. Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-04mellanox: Switch to bitmap_zalloc()Andy Shevchenko5-22/+16
Switch to bitmap_zalloc() to show clearly what we are allocating. Besides that it returns pointer of bitmap type instead of opaque void *. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-03mlxsw: i2c: Extend initialization by querying resources dataVadim Pasternak2-6/+17
Extend initialization flow by query requests for chip resources data in order to obtain chip's specific capabilities, like the number of ports. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-03mlxsw: i2c: Extend input parameters list of command APIVadim Pasternak1-19/+101
Extend input parameters list of command API in mlxsw_i2c_cmd() in order to support initialization commands. Up until now, only access commands were supported by I2C driver. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-03mlxsw: i2c: Modify input parameter name in initialization APIVadim Pasternak1-1/+1
Change input parameter name "resource" to "res" in mlxsw_i2c_init() in order to align it with mlxsw_pci_init(). Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-03-03mlxsw: i2c: Fix comment misspellingVadim Pasternak1-1/+1
Fix comment for mlxsw_i2c_write_cmd(). Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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