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* net/mlx4_core: Fix when to save some qp context flags for dynamic VST to VGT ↵Jack Morgenstein2017-04-18
| | | | | | | | | | | | | | | | | | | | | | | | transitions commit 7c3945bc2073554bb2ecf983e073dee686679c53 upstream. Save the qp context flags byte containing the flag disabling vlan stripping in the RESET to INIT qp transition, rather than in the INIT to RTR transition. Per the firmware spec, the flags in this byte are active in the RESET to INIT transition. As a result of saving the flags in the incorrect qp transition, when switching dynamically from VGT to VST and back to VGT, the vlan remained stripped (as is required for VST) and did not return to not-stripped (as is required for VGT). Fixes: f0f829bf42cd ("net/mlx4_core: Add immediate activate for VGT->VST->VGT") 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> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* net/mlx4_core: Fix racy CQ (Completion Queue) freeJack Morgenstein2017-04-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 291c566a28910614ce42d0ffe82196eddd6346f4 upstream. In function mlx4_cq_completion() and mlx4_cq_event(), the radix_tree_lookup requires a rcu_read_lock. This is mandatory: if another core frees the CQ, it could run the radix_tree_node_rcu_free() call_rcu() callback while its being used by the radix tree lookup function. Additionally, in function mlx4_cq_event(), since we are adding the rcu lock around the radix-tree lookup, we no longer need to take the spinlock. Also, the synchronize_irq() call for the async event eliminates the need for incrementing the cq reference count in mlx4_cq_event(). Other changes: 1. In function mlx4_cq_free(), replace spin_lock_irq with spin_lock: we no longer take this spinlock in the interrupt context. The spinlock here, therefore, simply protects against different threads simultaneously invoking mlx4_cq_free() for different cq's. 2. In function mlx4_cq_free(), we move the radix tree delete to before the synchronize_irq() calls. This guarantees that we will not access this cq during any subsequent interrupts, and therefore can safely free the CQ after the synchronize_irq calls. The rcu_read_lock in the interrupt handlers only needs to protect against corrupting the radix tree; the interrupt handlers may access the cq outside the rcu_read_lock due to the synchronize_irq calls which protect against premature freeing of the cq. 3. In function mlx4_cq_event(), we change the mlx_warn message to mlx4_dbg. 4. We leave the cq reference count mechanism in place, because it is still needed for the cq completion tasklet mechanism. Fixes: 6d90aa5cf17b ("net/mlx4_core: Make sure there are no pending async events when freeing CQ") Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* net/mlx4_en: Fix bad WQE issueEugenia Emantayev2017-04-18
| | | | | | | | | | | | | | | | commit 6496bbf0ec481966ef9ffe5b6660d8d1b55c60cc upstream. Single send WQE in RX buffer should be stamped with software ownership in order to prevent the flow of QP in error in FW once UPDATE_QP is called. Fixes: 9f519f68cfff ('mlx4_en: Not using Shared Receive Queues') Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* net/mlx4_core: Use device ID definesBjorn Helgaas2017-04-12
| | | | | | | | | | | | | [ Upstream commit c19e4b9037fa8a0477525a64e93847f534e8cc17 ] We added a bunch of new Mellanox device ID definitions because they'll be used by INTx quirks. Use them in the mlx4 ID table also so grep can find both places. No functional change intended. Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mlx4: Invoke softirqs after napi_rescheduleBenjamin Poirier2017-02-18
| | | | | | | | | | | | | | | | | | | | [ Upstream commit bd4ce941c8d5b862b2f83364be5dbe8fc8ab48f8 ] mlx4 may schedule napi from a workqueue. Afterwards, softirqs are not run in a deterministic time frame and the following message may be logged: NOHZ: local_softirq_pending 08 The problem is the same as what was described in commit ec13ee80145c ("virtio_net: invoke softirqs after __napi_schedule") and this patch applies the same fix to mlx4. Fixes: 07841f9d94c1 ("net/mlx4_en: Schedule napi when RX buffers allocation fails") Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Benjamin Poirier <bpoirier@suse.com> Acked-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mlx4: do not call napi_schedule() without careEric Dumazet2017-02-04
| | | | | | | | | | | | | | | | | | | [ Upstream commit 8cf699ec849f4ca1413cea01289bd7d37dbcc626 ] Disable BH around the call to napi_schedule() to avoid following warning [ 52.095499] NOHZ: local_softirq_pending 08 [ 52.421291] NOHZ: local_softirq_pending 08 [ 52.608313] NOHZ: local_softirq_pending 08 Fixes: 8d59de8f7bb3 ("net/mlx4_en: Process all completions in RX rings after port goes up") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Erez Shitrit <erezsh@mellanox.com> Cc: Eugenia Emantayev <eugenia@mellanox.com> Cc: Tariq Toukan <tariqt@mellanox.com> Acked-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* net/mlx4: Fix uninitialized fields in rule when adding promiscuous mode to ↵Jack Morgenstein2016-11-28
| | | | | | | | | | | | | device managed flow steering In procedure mlx4_flow_steer_promisc_add(), several fields were left uninitialized in the rule structure. Correctly initialize these fields. Fixes: 592e49dda812 ("net/mlx4: Implement promiscuous mode with device managed flow-steering") 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>
* Revert "net/mlx4_en: Avoid unregister_netdev at shutdown flow"Tariq Toukan2016-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 9d76931180557270796f9631e2c79b9c7bb3c9fb. Using unregister_netdev at shutdown flow prevents calling the netdev's ndos or trying to access its freed resources. This fixes crashes like the following: Call Trace: [<ffffffff81587a6e>] dev_get_phys_port_id+0x1e/0x30 [<ffffffff815a36ce>] rtnl_fill_ifinfo+0x4be/0xff0 [<ffffffff815a53f3>] rtmsg_ifinfo_build_skb+0x73/0xe0 [<ffffffff815a5476>] rtmsg_ifinfo.part.27+0x16/0x50 [<ffffffff815a54c8>] rtmsg_ifinfo+0x18/0x20 [<ffffffff8158a6c6>] netdev_state_change+0x46/0x50 [<ffffffff815a5e78>] linkwatch_do_dev+0x38/0x50 [<ffffffff815a6165>] __linkwatch_run_queue+0xf5/0x170 [<ffffffff815a6205>] linkwatch_event+0x25/0x30 [<ffffffff81099a82>] process_one_work+0x152/0x400 [<ffffffff8109a325>] worker_thread+0x125/0x4b0 [<ffffffff8109a200>] ? rescuer_thread+0x350/0x350 [<ffffffff8109fc6a>] kthread+0xca/0xe0 [<ffffffff8109fba0>] ? kthread_park+0x60/0x60 [<ffffffff816a1285>] ret_from_fork+0x25/0x30 Fixes: 9d7693118055 ("net/mlx4_en: Avoid unregister_netdev at shutdown flow") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reported-by: Steve Wise <swise@opengridcomputing.com> Cc: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_en: Free netdev resources under state lockTariq Toukan2016-11-23
| | | | | | | | | | | Make sure mlx4_en_free_resources is called under the netdev state lock. This is needed since RCU dereference of XDP prog should be protected. Fixes: 326fe02d1ed6 ("net/mlx4_en: protect ring->xdp_prog with rcu_read_lock") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reported-by: Sagi Grimberg <sagi@grimberg.me> CC: Brenden Blanco <bblanco@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Revert "net/mlx4_en: Fix panic during reboot"Tariq Toukan2016-11-09
| | | | | | | | | | | | | | | This reverts commit 9d2afba058722d40cc02f430229c91611c0e8d16. The original issue would possibly exist if an external module tried calling our "ethtool_ops" without checking if it still exists. The right way of solving it is by simply doing the check in the caller side. Currently, no action is required as there's no such use case. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_en: Save slave ethtool stats commandTariq Toukan2016-10-29
| | | | | | | | | Following the previous patch, as an optimization, the slave will not even bother sending the DUMP_ETH_STATS command over the comm channel. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_en: Fix potential deadlock in port statistics flowJack Morgenstein2016-10-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | mlx4_en_DUMP_ETH_STATS took the *counter mutex* and then called the FW command, with WRAPPED attribute. As a result, the fw command is wrapped on the Hypervisor when it calls mlx4_en_DUMP_ETH_STATS. The FW command wrapper flow on the hypervisor takes the *slave_cmd_mutex* during processing. At the same time, a VF could be in the process of coming up, and could call mlx4_QUERY_FUNC_CAP. On the hypervisor, the command flow takes the *slave_cmd_mutex*, then executes mlx4_QUERY_FUNC_CAP_wrapper. mlx4_QUERY_FUNC_CAP wrapper calls mlx4_get_default_counter_index(), which takes the *counter mutex*. DEADLOCK. The fix is that the DUMP_ETH_STATS fw command should be called with the NATIVE attribute, so that on the hypervisor, this command does not enter the wrapper flow. Since the Hypervisor no longer goes through the wrapper code, we also simply return 0 in mlx4_DUMP_ETH_STATS_wrapper (i.e.the function succeeds, but the returned data will be all zeroes). No need to test if it is the Hypervisor going through the wrapper. Fixes: f9baff509f8a ("mlx4_core: Add "native" argument to mlx4_cmd ...") 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>
* net/mlx4: Fix firmware command timeout during interrupt testEugenia Emantayev2016-10-29
| | | | | | | | | | | | Currently interrupt test that is part of ethtool selftest runs the check over all interrupt vectors of the device. In mlx4_en package part of interrupt vectors are uninitialized since mlx4_ib doesn't exist. This causes NOP FW command to time out. Change logic to test current port interrupt vectors only. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_core: Do not access comm channel if it has not yet been initializedJack Morgenstein2016-10-29
| | | | | | | | | | | | | | | | | | | | | | | In the Hypervisor, there are several FW commands which are invoked before the comm channel is initialized (in mlx4_multi_func_init). These include MOD_STAT_CONFIG, QUERY_DEV_CAP, INIT_HCA, and others. If any of these commands fails, say with a timeout, the Hypervisor driver enters the internal error reset flow. In this flow, the driver attempts to notify all slaves via the comm channel that an internal error has occurred. Since the comm channel has not yet been initialized (i.e., mapped via ioremap), this will cause dereferencing a NULL pointer. To fix this, do not access the comm channel in the internal error flow if it has not yet been initialized. Fixes: 55ad359225b2 ("net/mlx4_core: Enable device recovery flow with SRIOV") Fixes: ab9c17a009ee ("mlx4_core: Modify driver initialization flow to accommodate SRIOV for Ethernet") 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>
* net/mlx4_en: Fix panic during rebootEugenia Emantayev2016-10-29
| | | | | | | | | | | | | | Fix a kernel panic that occurs as a result of an asynchronous event handled in roce_gid_mgmt: mlx4_en_get_drvinfo is called and accesses freed resources. This happens in a shutdown flow only, since pci device is destroyed while netdevice is still alive. Fixes: c27a02cd94d6 ("mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC") Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_en: Process all completions in RX rings after port goes upErez Shitrit2016-10-29
| | | | | | | | | | | | | | | | | | | | Currently there is a race between incoming traffic and initialization flow. HW is able to receive the packets after INIT_PORT is done and unicast steering is configured. Before we set priv->port_up NAPI is not scheduled and receive queues become full. Therefore we never get new interrupts about the completions. This issue could happen if running heavy traffic during bringing port up. The resolution is to schedule NAPI once port_up is set. If receive queues were full this will process all cqes and release them. Fixes: c27a02cd94d6 ("mlx4_en: Add driver for Mellanox ConnectX 10GbE NIC") Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_en: Resolve dividing by zero in 32-bit systemEugenia Emantayev2016-10-29
| | | | | | | | | | | | When doing roundup_pow_of_two for large enough number with bit 31, an overflow will occur and a value equal to 1 will be returned. In this case 1 will be subtracted from the return value and division by zero will be reached. Fixes: 31c128b66e5b ("net/mlx4_en: Choose time-stamping shift value according to HW frequency") Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_core: Change the default value of enable_qosMoshe Lazer2016-10-29
| | | | | | | | | | Change the default status of quality of service back to disabled, as it hurts performance in some cases. Fixes: 38438f7c7e8c ("net/mlx4: Set enhanced QoS support by default when ...") Signed-off-by: Moshe Lazer <moshel@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_core: Avoid setting ports to auto when only one port type is supportedMaor Gottlieb2016-10-29
| | | | | | | | | | | When only one port type is supported, it should be read only. We reject changing requests, even to the auto sense mode. Fixes: 27bf91d6a0d5 ("mlx4_core: Add link type autosensing") Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_core: Fix the resource-type enum in res tracker to conform to FW specJack Morgenstein2016-10-29
| | | | | | | | | | | | | | | | The resource type enum in the resource tracker was incorrect. RES_EQ was put in the position of RES_NPORT_ID (a FC resource). Since the remaining resources maintain their current values, and RES_EQ is not passed from slaves to the hypervisor in any FW command, this change affects only the hypervisor. Therefore, there is no backwards-compatibility issue. Fixes: 623ed84b1f95 ("mlx4_core: initial header-file changes for SRIOV support") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* IB/mlx4: avoid a -Wmaybe-uninitialize warningArnd Bergmann2016-10-29
| | | | | | | | | | | | | | | There is an old warning about mlx4_SW2HW_EQ_wrapper on x86: ethernet/mellanox/mlx4/resource_tracker.c: In function ‘mlx4_SW2HW_EQ_wrapper’: ethernet/mellanox/mlx4/resource_tracker.c:3071:10: error: ‘eq’ may be used uninitialized in this function [-Werror=maybe-uninitialized] The problem here is that gcc won't track the state of the variable across a spin_unlock. Moving the assignment out of the lock is safe here and avoids the warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Yishai Hadas <yishaih@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/mlx4_en: fixup xdp tx irq to match rxBrenden Blanco2016-10-14
| | | | | | | | | | | | | | | | | | | | | In cases where the number of tx rings is not a multiple of the number of rx rings, the tx completion event will be handled on a different core from the transmit and population of the ring. Races on the ring will lead to a double-free of the page, and possibly other corruption. The rings are initialized by default with a valid multiple of rings, based on the number of cpus, therefore an invalid configuration requires ethtool to change the ring layout. For instance 'ethtool -L eth0 rx 9 tx 8' will cause packets received on rx0, and XDP_TX'd to tx48, to be completed on cpu3 (48 % 9 == 3). Resolve this discrepancy by shifting the irq for the xdp tx queues to start again from 0, modulo rx_ring_num. Fixes: 9ecc2d86171a ("net/mlx4_en: add xdp forwarding and data write support") Reported-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Brenden Blanco <bblanco@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'for-linus' of ↵Linus Torvalds2016-10-09
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull main rdma updates from Doug Ledford: "This is the main pull request for the rdma stack this release. The code has been through 0day and I had it tagged for linux-next testing for a couple days. Summary: - updates to mlx5 - updates to mlx4 (two conflicts, both minor and easily resolved) - updates to iw_cxgb4 (one conflict, not so obvious to resolve, proper resolution is to keep the code in cxgb4_main.c as it is in Linus' tree as attach_uld was refactored and moved into cxgb4_uld.c) - improvements to uAPI (moved vendor specific API elements to uAPI area) - add hns-roce driver and hns and hns-roce ACPI reset support - conversion of all rdma code away from deprecated create_singlethread_workqueue - security improvement: remove unsafe ib_get_dma_mr (breaks lustre in staging)" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (75 commits) staging/lustre: Disable InfiniBand support iw_cxgb4: add fast-path for small REG_MR operations cxgb4: advertise support for FR_NSMR_TPTE_WR IB/core: correctly handle rdma_rw_init_mrs() failure IB/srp: Fix infinite loop when FMR sg[0].offset != 0 IB/srp: Remove an unused argument IB/core: Improve ib_map_mr_sg() documentation IB/mlx4: Fix possible vl/sl field mismatch in LRH header in QP1 packets IB/mthca: Move user vendor structures IB/nes: Move user vendor structures IB/ocrdma: Move user vendor structures IB/mlx4: Move user vendor structures IB/cxgb4: Move user vendor structures IB/cxgb3: Move user vendor structures IB/mlx5: Move and decouple user vendor structures IB/{core,hw}: Add constant for node_desc ipoib: Make ipoib_warn ratelimited IB/mlx4/alias_GUID: Remove deprecated create_singlethread_workqueue IB/ipoib_verbs: Remove deprecated create_singlethread_workqueue IB/ipoib: Remove deprecated create_singlethread_workqueue ...
| * IB/mlx4: Fix possible vl/sl field mismatch in LRH header in QP1 packetsJack Morgenstein2016-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In MLX qp packets, the LRH (built by the driver) has both a VL field and an SL field. When building a QP1 packet, the VL field should reflect the SLtoVL mapping and not arbitrarily contain zero (as is done now). This bug causes credit problems in IB switches at high rates of QP1 packets. The fix is to cache the SL to VL mapping in the driver, and look up the VL mapped to the SL provided in the send request when sending QP1 packets. For FW versions which support generating a port_management_config_change event with subtype sl-to-vl-table-change, the driver uses that event to update its sl-to-vl mapping cache. Otherwise, the driver snoops incoming SMP mads to update the cache. There remains the case where the FW is running in secure-host mode (so no QP0 packets are delivered to the driver), and the FW does not generate the sl2vl mapping change event. To support this case, the driver updates (via querying the FW) its sl2vl mapping cache when running in secure-host mode when it receives either a Port Up event or a client-reregister event (where the port is still up, but there may have been an opensm failover). OpenSM modifies the sl2vl mapping before Port Up and Client-reregister events occur, so if there is a mapping change the driver's cache will be properly updated. Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | mlx4: remove unused fieldsDavid Decotigny2016-09-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This also can address following UBSAN warnings: [ 36.640343] ================================================================================ [ 36.648772] UBSAN: Undefined behaviour in drivers/net/ethernet/mellanox/mlx4/fw.c:857:26 [ 36.656853] shift exponent 64 is too large for 32-bit type 'int' [ 36.663348] ================================================================================ [ 36.671783] ================================================================================ [ 36.680213] UBSAN: Undefined behaviour in drivers/net/ethernet/mellanox/mlx4/fw.c:861:27 [ 36.688297] shift exponent 35 is too large for 32-bit type 'int' [ 36.694702] ================================================================================ Tested: reboot with UBSAN, no warning. Signed-off-by: David Decotigny <decot@googlers.com> Acked-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4: Add VF vlan protocol 802.1ad supportMoshe Shemesh2016-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the vf to VST 802.1ad mode (mlx4 VST QinQ mode) by setting vf vlan protocol to 802.1ad. VST 802.1ad mode in mlx4, is used for STAG strip/insertion by PF, while the CTAG is set by the VF. Read current vlan protocol as part of the vf configuration state. Upon setting vf vlan protocol to 802.1ad, we use a mechanism of handshake to verify that both the vf and the pf driver version support it. The handshake uses the command QUERY_FUNC_CAP: - The vf sets a pre-defined support bit in input modifier. - A pf that supports the feature sends the request to the vf through a pre-defined field in the output mailbox. - In case vf does not support the feature, the pf will fail the control command (in this case, IP link tool command to set the vf vlan protocol to 802.1ad). No change in VST 802.1Q mode. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Update API for VF vlan protocol 802.1ad supportMoshe Shemesh2016-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce new rtnl UAPI that exposes a list of vlans per VF, giving the ability for user-space application to specify it for the VF, as an option to support 802.1ad. We adjusted IP Link tool to support this option. For future use cases, the new UAPI supports multiple vlans. For now we limit the list size to a single vlan in kernel. Add IFLA_VF_VLAN_LIST in addition to IFLA_VF_VLAN to keep backward compatibility with older versions of IP Link tool. Add a vlan protocol parameter to the ndo_set_vf_vlan callback. We kept 802.1Q as the drivers' default vlan protocol. Suitable ip link tool command examples: Set vf vlan protocol 802.1ad: ip link set eth0 vf 1 vlan 100 proto 802.1ad Set vf to VST (802.1Q) mode: ip link set eth0 vf 1 vlan 100 proto 802.1Q Or by omitting the new parameter ip link set eth0 vf 1 vlan 100 Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_en: Disable vlan HW acceleration when in VF vlan protocol 802.1ad modeMoshe Shemesh2016-09-24
| | | | | | | | | | | | | | | | | | In Ethernet VF, disable vlan HW acceleration on VF while it is set to VF vlan protocol 802.1ad mode. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_core: Preparation for VF vlan protocol 802.1adMoshe Shemesh2016-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check device capability to support VF vlan protocol 802.1ad mode. Add vport attribute vlan protocol. Init vport vlan protocol by default to 802.1Q. Add update QP support for VF vlan protocol 802.1ad. Add func capability vlan_offload_disable to disable all vlan HW acceleration on VF while the VF is set to VF vlan protocol 802.1ad mode. No change in VF vlan protocol 802.1Q (VST) mode. Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/mlx4_core: Fix QUERY FUNC CAP flagsMoshe Shemesh2016-09-24
| | | | | | | | | | | | | | | | | | | | | | | | | | Separate QUERY_FUNC_CAP flags0 from QUERY_FUNC_CAP flags, as 'flags' is already used for another set of flags in FUNC CAP, while phv bit should be part of a different set of flags. Remove QUERY_FUNC_CAP port_flags field, as it is not in use. Fixes: 77fc29c4bbbb ('net/mlx4_core: Preparations for 802.1ad VLAN support') Fixes: 5cc914f10851 ('mlx4_core: Added FW commands and their wrappers for supporting SRIOV') Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2016-09-23
|\ \
| * | net/mlx4_core: Fix to clean devlink resourcesKamal Heib2016-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch cleans devlink resources by calling devlink_port_unregister() to avoid the following issues: - Kernel panic when triggering reset flow. - Memory leak due to unfreed resources in mlx4_init_port_info(). Fixes: 09d4d087cd48 ("mlx4: Implement devlink interface") Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net/mlx4_en: fix off by one in error handlingSebastian Ott2016-09-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If an error occurs in mlx4_init_eq_table the index used in the err_out_unmap label is one too big which results in a panic in mlx4_free_eq. This patch fixes the index in the error path. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | ptp_clock: future-proofing drivers against PTP subsystem becoming optionalNicolas Pitre2016-09-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Drivers must be ready to accept NULL from ptp_clock_register() if the PTP clock subsystem is configured out. This patch documents that and ensures that all drivers cope well with a NULL return. Signed-off-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Eugenia Emantayev <eugenia@mellanox.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net/mlx4_core: Fix deadlock when switching between polling and event fw commandsJack Morgenstein2016-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When switching from polling-based fw commands to event-based fw commands, there is a race condition which could cause a fw command in another task to hang: that task will keep waiting for the polling sempahore, but may never be able to acquire it. This is due to mlx4_cmd_use_events, which "down"s the sempahore back to 0. During driver initialization, this is not a problem, since no other tasks which invoke FW commands are active. However, there is a problem if the driver switches to polling mode and then back to event mode during normal operation. The "test_interrupts" feature does exactly that. Running "ethtool -t <eth device> offline" causes the PF driver to temporarily switch to polling mode, and then back to event mode. (Note that for VF drivers, such switching is not performed). Fix this by adding a read-write semaphore for protection when switching between modes. Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Matan Barak <matanb@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net/mlx4_core: Use RCU to perform radix tree lookup for SRQLeon Romanovsky2016-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Radix tree lookup can be performed without locking. Fixes: 225c7b1feef1 ("IB/mlx4: Add a driver Mellanox ConnectX InfiniBand adapters") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Suggested-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net/mlx4_en: Fix wrong indentationKamal Heib2016-09-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | Use tabs instead of spaces before if statement, no functional change. Fixes: e7c1c2c46201 ("mlx4_en: Added self diagnostics test implementation") Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | net/mlx4_en: Add branch prediction hints in RX data-pathTariq Toukan2016-09-21
| | | | | | | | | | | | | | | | | | | | | | | | Add likely/unlikely hints to improve branch predictions in the RX data-path. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | mlx4: add missed recycle opportunity for XDP_TX on TX failureJesper Dangaard Brouer2016-09-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct drop handling for XDP_TX on TX failure, were recently added in commit 95357907ae73 ("mlx4: fix XDP_TX is acting like XDP_PASS on TX ring full"). The change missed an opportunity for recycling the RX page, instead of going through the page allocator, like the regular XDP_DROP action does. This patch cease the opportunity, by going through the XDP_DROP case. Fixes: 95357907ae73 ("mlx4: fix XDP_TX is acting like XDP_PASS on TX ring full") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | mlx4: fix XDP_TX is acting like XDP_PASS on TX ring fullJesper Dangaard Brouer2016-09-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The XDP_TX action can fail transmitting the frame in case the TX ring is full or port is down. In case of TX failure it should drop the frame, and not as now call 'break' which is the same as XDP_PASS. Fixes: 9ecc2d86171a ("net/mlx4_en: add xdp forwarding and data write support") Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Reviewed-by: Brenden Blanco <bblanco@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2016-09-12
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Conflicts: drivers/net/ethernet/mediatek/mtk_eth_soc.c drivers/net/ethernet/qlogic/qed/qed_dcbx.c drivers/net/phy/Kconfig All conflicts were cases of overlapping commits. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net/mlx4_en: Fix panic on xmit while port is downMoshe Shemesh2016-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When port is down, tx drop counter update is not needed. Updating the counter in this case can cause a kernel panic as when the port is down, ring can be NULL. Fixes: 63a664b7e92b ("net/mlx4_en: fix tx_dropped bug") Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net/mlx4_en: Fixes for DCBXTariq Toukan2016-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a capability check before enabling DCBX. In addition, it re-organizes the relevant data structures, and fixes a typo in a define. Fixes: af7d51852631 ("net/mlx4_en: Add DCB PFC support through CEE netlink commands") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net/mlx4_en: Fix the return value of mlx4_en_dcbnl_set_state()Kamal Heib2016-09-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mlx4_en_dcbnl_set_state() returns u8, the return value from mlx4_en_setup_tc() could be negative in case of failure, so fix that. Fixes: af7d51852631 ("net/mlx4_en: Add DCB PFC support through CEE netlink commands") Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | net/mlx4_en: Fix the return value of mlx4_en_dcbnl_set_all()Kamal Heib2016-09-11
| |/ | | | | | | | | | | | | | | | | | | | | | | mlx4_en_dcbnl_set_all() returns u8, so return value can't be negative in case of failure. Fixes: af7d51852631 ("net/mlx4_en: Add DCB PFC support through CEE netlink commands") Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Rana Shahout <ranas@mellanox.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* / net/mlx4_en: protect ring->xdp_prog with rcu_read_lockBrenden Blanco2016-09-06
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Depending on the preempt mode, the bpf_prog stored in xdp_prog may be freed despite the use of call_rcu inside bpf_prog_put. The situation is possible when running in PREEMPT_RCU=y mode, for instance, since the rcu callback for destroying the bpf prog can run even during the bh handling in the mlx4 rx path. Several options were considered before this patch was settled on: Add a napi_synchronize loop in mlx4_xdp_set, which would occur after all of the rings are updated with the new program. This approach has the disadvantage that as the number of rings increases, the speed of update will slow down significantly due to napi_synchronize's msleep(1). Add a new rcu_head in bpf_prog_aux, to be used by a new bpf_prog_put_bh. The action of the bpf_prog_put_bh would be to then call bpf_prog_put later. Those drivers that consume a bpf prog in a bh context (like mlx4) would then use the bpf_prog_put_bh instead when the ring is up. This has the problem of complexity, in maintaining proper refcnts and rcu lists, and would likely be harder to review. In addition, this approach to freeing must be exclusive with other frees of the bpf prog, for instance a _bh prog must not be referenced from a prog array that is consumed by a non-_bh prog. The placement of rcu_read_lock in this patch is functionally the same as putting an rcu_read_lock in napi_poll. Actually doing so could be a potentially controversial change, but would bring the implementation in line with sk_busy_loop (though of course the nature of those two paths is substantially different), and would also avoid future copy/paste problems with future supporters of XDP. Still, this patch does not take that opinionated option. Testing was done with kernels in either PREEMPT_RCU=y or CONFIG_PREEMPT_VOLUNTARY=y+PREEMPT_RCU=n modes, with neither exhibiting any drawback. With PREEMPT_RCU=n, the extra call to rcu_read_lock did not show up in the perf report whatsoever, and with PREEMPT_RCU=y the overhead of rcu_read_lock (according to perf) was the same before/after. In the rx path, rcu_read_lock is eventually called for every packet from netif_receive_skb_internal, so the napi poll call's rcu_read_lock is easily amortized. v2: Remove extra rcu_read_lock in mlx4_en_process_rx_cq body Annotate xdp_prog with __rcu, and convert all usages to rcu_assign or rcu_dereference[_protected] as appropriate. Add explicit mutex lock around rcu_assign instead of xchg loop. Fixes: d576acf0a22 ("net/mlx4_en: add page recycle to prepare rx ring for tx support") Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Brenden Blanco <bblanco@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge tag 'for-linus' of ↵Linus Torvalds2016-08-04
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull base rdma updates from Doug Ledford: "Round one of 4.8 code: while this is mostly normal, there is a new driver in here (the driver was hosted outside the kernel for several years and is actually a fairly mature and well coded driver). It amounts to 13,000 of the 16,000 lines of added code in here. Summary: - Updates/fixes for iw_cxgb4 driver - Updates/fixes for mlx5 driver - Add flow steering and RSS API - Add hardware stats to mlx4 and mlx5 drivers - Add firmware version API for RDMA driver use - Add the rxe driver (this is a software RoCE driver that makes any Ethernet device a RoCE device) - Fixes for i40iw driver - Support for send only multicast joins in the cma layer - Other minor fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (72 commits) Soft RoCE driver IB/core: Support for CMA multicast join flags IB/sa: Add cached attribute containing SM information to SA port IB/uverbs: Fix race between uverbs_close and remove_one IB/mthca: Clean up error unwind flow in mthca_reset() IB/mthca: NULL arg to pci_dev_put is OK IB/hfi1: NULL arg to sc_return_credits is OK IB/mlx4: Add diagnostic hardware counters net/mlx4: Query performance and diagnostics counters net/mlx4: Add diagnostic counters capability bit Use smaller 512 byte messages for portmapper messages IB/ipoib: Report SG feature regardless of HW UD CSUM capability IB/mlx4: Don't use GFP_ATOMIC for CQ resize struct IB/hfi1: Disable by default IB/rdmavt: Disable by default IB/mlx5: Fix port counter ID association to QP offset IB/mlx5: Fix iteration overrun in GSI qps i40iw: Add NULL check for puda buffer i40iw: Change dup_ack_thresh to u8 i40iw: Remove unnecessary check for moving CQ head ...
| * net/mlx4: Query performance and diagnostics countersMark Bloch2016-08-03
| | | | | | | | | | | | | | | | Add a function to query diagnostics counters from the firmware. Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
| * net/mlx4: Add diagnostic counters capability bitMark Bloch2016-08-03
| | | | | | | | | | | | | | | | | | Add a bit that indicates if the firmware supports per port diagnostic counters. Signed-off-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
* | Merge tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds2016-08-01
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge drm updates from Dave Airlie: "This is the main drm pull request for 4.8. I'm down with a cold at the moment so hopefully this isn't in too bad a state, I finished pulling stuff last week mostly (nouveau fixes just went in today), so only this message should be influenced by illness. Apologies to anyone who's major feature I missed :-) Core: Lockless GEM BO freeing Non-blocking atomic work Documentation changes (rst/sphinx) Prep for new fencing changes Simple display helpers Master/auth changes Register/unregister rework Loads of trivial patches/fixes. New stuff: ARM Mali display driver (not the 3D chip) sii902x RGB->HDMI bridge Panel: Support for new panels Improved backlight support Bridge: Convert ADV7511 to bridge driver ADV7533 support TC358767 (DSI/DPI to eDP) encoder chip support i915: BXT support enabled by default GVT-g infrastructure GuC command submission and fixes BXT workarounds SKL/BKL workarounds Demidlayering device registration Thundering herd fixes Missing pci ids Atomic updates amdgpu/radeon: ATPX improvements for better dGPU power control on PX systems New power features for CZ/BR/ST Pipelined BO moves and evictions in TTM GPU scheduler improvements GPU reset improvements Overclocking on dGPUs with amdgpu Polaris powermanagement enabled nouveau: GK20A/GM20B volt and clock improvements. Initial support for GP100/GP104 GPUs, GP104 will not yet support acceleration due to NVIDIA having not released firmware for them as of yet. exynos: Exynos5433 SoC with IOMMU support. vc4: Shader validation for branching imx-drm: Atomic mode setting conversion Reworked DMFC FIFO allocation External bridge support analogix-dp: RK3399 eDP support Lots of fixes. rockchip: Lots of small fixes. msm: DT bindings cleanups Shrinker and madvise support ASoC HDMI codec support tegra: Host1x driver cleanups SOR reworking for DP support Runtime PM support omapdrm: PLL enhancements Header refactoring Gamma table support arcgpu: Simulator support virtio-gpu: Atomic modesetting fixes. rcar-du: Misc fixes. mediatek: MT8173 HDMI support sti: ASOC HDMI codec support Minor fixes fsl-dcu: Suspend/resume support Bridge support amdkfd: Minor fixes. etnaviv: Enable GPU clock gating hisilicon: Vblank and other fixes" * tag 'drm-for-v4.8' of git://people.freedesktop.org/~airlied/linux: (1575 commits) drm/nouveau/gr/nv3x: fix instobj write offsets in gr setup drm/nouveau/acpi: fix lockup with PCIe runtime PM drm/nouveau/acpi: check for function 0x1B before using it drm/nouveau/acpi: return supported DSM functions drm/nouveau/acpi: ensure matching ACPI handle and supported functions drm/nouveau/fbcon: fix font width not divisible by 8 drm/amd/powerplay: remove enable_clock_power_gatings_tasks from initialize and resume events drm/amd/powerplay: move clockgating to after ungating power in pp for uvd/vce drm/amdgpu: add query device id and revision id into system info entry at CGS drm/amdgpu: add new definition in bif header drm/amd/powerplay: rename smum header guards drm/amdgpu: enable UVD context buffer for older HW drm/amdgpu: fix default UVD context size drm/amdgpu: fix incorrect type of info_id drm/amdgpu: make amdgpu_cgs_call_acpi_method as static drm/amdgpu: comment out unused defaults_staturn_pro static const structure to fix the build drm/amdgpu: enable UVD VM only on polaris drm/amdgpu: increase timeout of IB test drm/amdgpu: add destroy session when generate VCE destroy msg. drm/amd: fix deadlock of job_list_lock V2 ...
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-03 23:15:57 -0400