kernel/linux.git/include/linux/mlx5/driver.h, branch v5.12.18

net/mlx5e: Don't create devices during unload flow

2021-06-23T12:44:01+00:00

[ Upstream commit a5ae8fc9058e37437c8c1f82b3d412b4abd1b9e6 ] Running devlink reload command for port in switchdev mode cause resources to corrupt: driver can't release allocated EQ and reclaim memory pages, because "rdma" auxiliary device had add CQs which blocks EQ from deletion. Erroneous sequence happens during reload-down phase, and is following: 1. detach device - suspends auxiliary devices which support it, destroys others. During this step "eth-rep" and "rdma-rep" are destroyed, "eth" - suspended. 2. disable SRIOV - moves device to legacy mode; as part of disablement - rescans drivers. This step adds "rdma" auxiliary device. 3. destroy EQ table - . Driver shouldn't create any device during unload flows. To handle that implement MLX5_PRIV_FLAGS_DETACH flag, set it on device detach and unset on device attach. If flag is set do no-op on drivers rescan. Fixes: a925b5e309c9 ("net/mlx5: Register mlx5 devices to auxiliary virtual bus") Signed-off-by: Dmytro Linkin Reviewed-by: Leon Romanovsky Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin

{net, RDMA}/mlx5: Fix override of log_max_qp by other device

2021-06-03T07:09:35+00:00

commit 3410fbcd47dc6479af4309febf760ccaa5efb472 upstream. mlx5_core_dev holds pointer to static profile, hence when the log_max_qp of the profile is override by some device, then it effect all other mlx5 devices that share the same profile. Fix it by having a profile instance for every mlx5 device. Fixes: 883371c453b9 ("net/mlx5: Check FW limitations on log_max_qp before setting it") Signed-off-by: Maor Gottlieb Reviewed-by: Mark Bloch Signed-off-by: Saeed Mahameed Signed-off-by: Greg Kroah-Hartman

RDMA/mlx5: Fix query RoCE port

2021-05-14T08:52:44+00:00

[ Upstream commit 7852546f524595245382a919e752468f73421451 ] mlx5_is_roce_enabled returns the devlink RoCE init value, therefore it should be used only when driver is loaded. Instead we just need to read the roce_en field. In addition, rename mlx5_is_roce_enabled to mlx5_is_roce_init_enabled. Fixes: 7a58779edd75 ("IB/mlx5: Improve query port for representor port") Link: https://lore.kernel.org/r/20210304124517.1100608-2-leon@kernel.org Signed-off-by: Maor Gottlieb Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

2021-02-22T18:27:48+00:00

Pull rdma updates from Jason Gunthorpe: "This is quite a small cycle, if not for Lee's 70 patches cleaning the kdocs it would be well below typical for patch count. Most of the interesting work here was in the HNS and rxe drivers which got fairly major internal changes. Summary: - Driver updates and bug fixes: siw, hns, bnxt_re, mlx5, efa - Significant rework in rxe to get it ready to have XRC support added - Several rts bug fixes - Big series to get to 'make W=1' cleanness, primarily updating kdocs - Support for creating a RDMA MR from a DMABUF fd to allow PCI peer to peer transfers to GPU VRAM - Device disassociation now works properly with umad - Work to support more than 255 ports on a RDMA device - Further support for the new HNS HIP09 hardware - Coding style cleanups: comma to semicolon, unneded semicolon/blank lines, remove 'h' printk format, don't check for NULL before kfree, use true/false for bool" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (205 commits) RDMA/rtrs-srv: Do not pass a valid pointer to PTR_ERR() RDMA/srp: Fix support for unpopulated and unbalanced NUMA nodes RDMA/mlx5: Fail QP creation if the device can not support the CQE TS RDMA/mlx5: Allow CQ creation without attached EQs RDMA/rtrs-srv-sysfs: fix missing put_device RDMA/rtrs-srv: fix memory leak by missing kobject free RDMA/rtrs: Only allow addition of path to an already established session RDMA/rtrs-srv: Fix stack-out-of-bounds RDMA/rxe: Remove unused pkt->offset RDMA/ucma: Fix use-after-free bug in ucma_create_uevent RDMA/core: Fix kernel doc warnings for ib_port_immutable_read() RDMA/qedr: Use true and false for bool variable RDMA/hns: Adjust definition of FRMR fields RDMA/hns: Refactor process of posting CMDQ RDMA/hns: Adjust fields and variables about CMDQ tail/head RDMA/hns: Remove redundant operations on CMDQ RDMA/hns: Fixes missing error code of CMDQ RDMA/hns: Remove unused member and variable of CMDQ RDMA/ipoib: Remove racy Subnet Manager sendonly join checks RDMA/mlx5: Support 400Gbps IB rate in mlx5 driver ...

Merge tag 'v5.11' into rdma.git for-next

2021-02-18T15:19:29+00:00

Linux 5.11 Merged to resolve conflicts with RDMA rc commits - drivers/infiniband/sw/rxe/rxe_net.c The final logic is to call rxe_get_dev_from_net() again with the master netdev if the packet was rx'd on a vlan. To keep the elimination of the local variables requires a trivial edit to the code in -rc Link: https://lore.kernel.org/r/20210210131542.215ea67c@canb.auug.org.au Signed-off-by: Jason Gunthorpe

Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux

2021-02-16T22:53:30+00:00

Saeed Mahameed says: ==================== pull-request: mlx5-next 2021-02-16 The patches in this pr are already submitted and reviewed through the netdev and rdma mailing lists. The series includes mlx5 HW bits and definitions for mlx5 real time clock translation and handling in the mlx5 driver clock module to enable and support such mode [1] [1] https://patchwork.kernel.org/project/netdevbpf/patch/20210212223042.449816-7-saeed@kernel.org/ ==================== Signed-off-by: David S. Miller

net/mlx5: Move all internal timer metadata into a dedicated struct

2021-02-16T22:04:54+00:00

Internal timer mode (SW clock) requires some PTP clock related metadata structs. Real time mode (HW clock) will not need these metadata structs. This separation emphasize the different interfaces for HW clock and SW clock. Signed-off-by: Eran Ben Elisha Signed-off-by: Aya Levin Signed-off-by: Saeed Mahameed

net/mlx5: Add register layout to support real-time time-stamp

2021-02-16T22:04:54+00:00

Add needed structure layouts and defines for MTUTC (Management UTC) register. MTUTC will be used for cyc2time HW translation. In addition, add cyc2time modify capability bit and init segment HCA real time address. Finally, add capability bits indicating which time-stamping format is supported per SQ and RQ. Add ts_format in the queue's context layout to allow configuration. Signed-off-by: Eran Ben Elisha Signed-off-by: Aya Levin Reviewed-by: Moshe Shemesh Signed-off-by: Saeed Mahameed

net/mlx5: Delete device list leftover

2021-02-11T04:47:12+00:00

Device list is not stored in mlx5_priv anymore, so delete it as it's not used. Signed-off-by: Leon Romanovsky Signed-off-by: Saeed Mahameed

RDMA/mlx5: Cleanup the synchronize_srcu() from the ODP flow

2021-02-09T00:31:11+00:00

Cleanup the synchronize_srcu() from the ODP flow as it was found to be a very heavy time consumer as part of dereg_mr. For example de-registration of 10000 ODP MRs each with size of 2M hugepage took 19.6 sec comparing de-registration of same number of non ODP MRs that took 172 ms. The new locking scheme uses the wait_event() mechanism which follows the use count of the MR instead of using synchronize_srcu(). By that change, the time required for the above test took 95 ms which is even better than the non ODP flow. Once fully dropped the srcu usage, had to come with a lock to protect the XA access. As part of using the above mechanism we could also clean the num_deferred_work stuff and follow the use count instead. Link: https://lore.kernel.org/r/20210202071309.2057998-1-leon@kernel.org Signed-off-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe