talos-op-linux/drivers/infiniband/hw/qedr, branch master

Merge tag 'rds-odp-for-5.5' into rdma.git for-next

2020-01-21T13:55:04+00:00

From https://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma Leon Romanovsky says: ==================== Use ODP MRs for kernel ULPs The following series extends MR creation routines to allow creation of user MRs through kernel ULPs as a proxy. The immediate use case is to allow RDS to work over FS-DAX, which requires ODP (on-demand-paging) MRs to be created and such MRs were not possible to create prior this series. The first part of this patchset extends RDMA to have special verb ib_reg_user_mr(). The common use case that uses this function is a userspace application that allocates memory for HCA access but the responsibility to register the memory at the HCA is on an kernel ULP. This ULP acts as an agent for the userspace application. The second part provides advise MR functionality for ULPs. This is integral part of ODP flows and used to trigger pagefaults in advance to prepare memory before running working set. The third part is actual user of those in-kernel APIs. ==================== * tag 'rds-odp-for-5.5': net/rds: Use prefetch for On-Demand-Paging MR net/rds: Handle ODP mr registration/unregistration net/rds: Detect need of On-Demand-Paging memory registration RDMA/mlx5: Fix handling of IOVA != user_va in ODP paths IB/mlx5: Mask out unsupported ODP capabilities for kernel QPs RDMA/mlx5: Don't fake udata for kernel path IB/mlx5: Add ODP WQE handlers for kernel QPs IB/core: Add interface to advise_mr for kernel users IB/core: Introduce ib_reg_user_mr IB: Allow calls to ib_umem_get from kernel ULPs Signed-off-by: Jason Gunthorpe

IB: Allow calls to ib_umem_get from kernel ULPs

2020-01-16T14:14:28+00:00

So far the assumption was that ib_umem_get() and ib_umem_odp_get() are called from flows that start in UVERBS and therefore has a user context. This assumption restricts flows that are initiated by ULPs and need the service that ib_umem_get() provides. This patch changes ib_umem_get() and ib_umem_odp_get() to get IB device directly by relying on the fact that both UVERBS and ULPs sets that field correctly. Reviewed-by: Guy Levi Signed-off-by: Moni Shoua Signed-off-by: Leon Romanovsky

RDMA/qedr: Add kernel capability flags for dpm enabled mode

2020-01-03T16:37:00+00:00

HW/FW support two types of latency enhancement features. Until now user-space implemented only edpm (enhanced dpm). We add kernel capability flags to differentiate between current FW in kernel that supports both ldpm and edpm. Since edpm is not yet supported for iWARP we add different flags for iWARP + RoCE. We also fix bad practice of defining sizes in rdma-core and pass initialization to kernel, for forward compatibility. The capability flags are added for backward-forward compatibility between kernel and rdma-core for qedr. Before this change there was a field called dpm_enabled which could hold either 0 or 1 value, this indicated whether RoCE edpm was enabled or not. We modified this field to be dpm_flags, and bit 1 still holds the same meaning of RoCE edpm being enabled or not. Link: https://lore.kernel.org/r/20191121112957.25162-1-michal.kalderon@marvell.com Signed-off-by: Michal Kalderon Signed-off-by: Jason Gunthorpe

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

2019-11-27T18:17:28+00:00

Pull rdma updates from Jason Gunthorpe: "Again another fairly quiet cycle with few notable core code changes and the usual variety of driver bug fixes and small improvements. - Various driver updates and bug fixes for siw, bnxt_re, hns, qedr, iw_cxgb4, vmw_pvrdma, mlx5 - Improvements in SRPT from working with iWarp - SRIOV VF support for bnxt_re - Skeleton kernel-doc files for drivers/infiniband - User visible counters for events related to ODP - Common code for tracking of mmap lifetimes so that drivers can link HW object liftime to a VMA - ODP bug fixes and rework - RDMA READ support for efa - Removal of the very old cxgb3 driver" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (168 commits) RDMA/hns: Delete unnecessary callback functions for cq RDMA/hns: Rename the functions used inside creating cq RDMA/hns: Redefine the member of hns_roce_cq struct RDMA/hns: Redefine interfaces used in creating cq RDMA/efa: Expose RDMA read related attributes RDMA/efa: Support remote read access in MR registration RDMA/efa: Store network attributes in device attributes IB/hfi1: remove redundant assignment to variable ret RDMA/bnxt_re: Fix missing le16_to_cpu RDMA/bnxt_re: Fix stat push into dma buffer on gen p5 devices RDMA/bnxt_re: Fix chip number validation Broadcom's Gen P5 series RDMA/bnxt_re: Fix Kconfig indentation IB/mlx5: Implement callbacks for getting VFs GUID attributes IB/ipoib: Add ndo operation for getting VFs GUID attributes IB/core: Add interfaces to get VF node and port GUIDs net/core: Add support for getting VF GUIDs RDMA/qedr: Fix null-pointer dereference when calling rdma_user_mmap_get_offset RDMA/cm: Use refcount_t type for refcount variable IB/mlx5: Support extended number of strides for Striding RQ IB/mlx4: Update HW GID table while adding vlan GID ...

RDMA/qedr: Fix null-pointer dereference when calling rdma_user_mmap_get_offset

2019-11-19T20:15:36+00:00

When running against rdma-core that doesn't support doorbell recovery, the rdma_user_mmap_entry won't be allocated for doorbell recovery related mappings. We have a flag indicating whether rdma-core supports doorbell recovery or not which was used during initialization, however some cases didn't check that the rdma_user_mmap_entry exists before attempting to acquire it's offset. Fixes: 97f612509294 ("RDMA/qedr: Add doorbell overflow recovery support") Link: https://lore.kernel.org/r/20191118150645.26602-1-michal.kalderon@marvell.com Signed-off-by: Ariel Elior Signed-off-by: Michal Kalderon Signed-off-by: Jason Gunthorpe

IB/umem: remove the dmasync argument to ib_umem_get

2019-11-17T14:37:00+00:00

The argument is always ignored, so remove it. Link: https://lore.kernel.org/r/20191113073214.9514-3-hch@lst.de Signed-off-by: Christoph Hellwig Reviewed-by: Jason Gunthorpe Acked-by: Michal Kalderon Signed-off-by: Jason Gunthorpe

RDMA/qedr: Make qedr_iw_load_qp() static

2019-11-14T15:55:31+00:00

The function qedr_iw_load_qp() is only used in qedr_iw_cm.c Fixes: 82af6d19d8d9 ("RDMA/qedr: Fix synchronization methods and memory leaks in qedr") Link: https://lore.kernel.org/r/20191110113645.20058-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib Acked-by: Michal Kalderon Signed-off-by: Jason Gunthorpe

RDMA/qedr: Fix potential use after free

2019-11-14T15:47:18+00:00

Move the release operation after error log to avoid possible use after free. Link: https://lore.kernel.org/r/1573021434-18768-1-git-send-email-bianpan2016@163.com Signed-off-by: Pan Bian Acked-by: Michal Kalderon Reviewed-by: Jason Gunthorpe Signed-off-by: Jason Gunthorpe

RDMA: Change MAD processing function to remove extra casting and parameter

2019-11-13T00:20:15+00:00

All users of process_mad() converts input pointers from ib_mad_hdr to be ib_mad, update the function declaration to use ib_mad directly. Also remove not used input MAD size parameter. Link: https://lore.kernel.org/r/20191029062745.7932-17-leon@kernel.org Signed-off-by: Leon Romanovsky Tested-By: Mike Marciniszyn Signed-off-by: Jason Gunthorpe

RDMA/qedr: Remove unsupported modify_port callback

2019-11-06T17:30:24+00:00

There is no need to return always zero for function which is not supported. Fixes: ac1b36e55a51 ("qedr: Add support for user context verbs") Link: https://lore.kernel.org/r/20191028155931.1114-5-kamalheib1@gmail.com Signed-off-by: Kamal Heib Reviewed-by: Jason Gunthorpe Signed-off-by: Jason Gunthorpe