kernel/linux.git/drivers/infiniband/core/verbs.c, branch linux-7.1.y

RDMA/core: Remove unused ib_resize_cq() implementation

2026-03-30T17:47:43+00:00

There are no in-kernel users of the CQ resize functionality, so drop it. Link: https://patch.msgid.link/20260318-resize_cq-type-v1-1-b2846ed18846@nvidia.com Signed-off-by: Leon Romanovsky

RDMA/core: Reject zero CQE count

2026-02-25T13:15:30+00:00

All drivers already ensure that the number of CQEs is at least 1. Add this validation to the core so drivers no longer need to repeat it. Future patches converting to the .create_user_cq() interface will remove the per‑driver checks. Link: https://patch.msgid.link/20260213-refactor-umem-v1-8-f3be85847922@nvidia.com Signed-off-by: Leon Romanovsky

RDMA/core: Prepare create CQ path for API unification

2026-02-25T13:15:30+00:00

Ensure that .create_cq_umem() and .create_cq() follow the same API contract, allowing drivers to be gradually migrated to the umem-aware CQ management flow. Link: https://patch.msgid.link/20260213-refactor-umem-v1-7-f3be85847922@nvidia.com Signed-off-by: Leon Romanovsky

RDMA/core: Manage CQ umem in core code

2026-02-25T13:15:30+00:00

In the current implementation, CQ umem is handled both by ib_core and the driver. ib_core sometimes creates and destroys it, while the driver also destroys it. Store the umem in struct ib_cq and ensure that only ib_core manages its lifetime, relying solely on its internal reference counter. Link: https://patch.msgid.link/20260213-refactor-umem-v1-5-f3be85847922@nvidia.com Signed-off-by: Leon Romanovsky

RDMA: Move DMA block iterator logic into dedicated files

2026-02-25T13:15:30+00:00

The DMA iterator logic was mixed into verbs and umem-specific code, forcing all users to include rdma/ib_umem.h. Move the block iterator logic into iter.c and rdma/iter.h so that rdma/ib_umem.h and rdma/ib_verbs.h can be separated in a follow-up patch. Link: https://patch.msgid.link/20260213-refactor-umem-v1-1-f3be85847922@nvidia.com Signed-off-by: Leon Romanovsky

Convert 'alloc_flex' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This is the exact same thing as the 'alloc_obj()' version, only much smaller because there are a lot fewer users of the *alloc_flex() interface. As with alloc_obj() version, this was done entirely with mindless brute force, using the same script, except using 'flex' in the pattern rather than 'objs*'. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

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

2026-02-13T01:05:20+00:00

Pull rdma updates from Jason Gunthorpe: "Usual smallish cycle. The NFS biovec work to push it down into RDMA instead of indirecting through a scatterlist is pretty nice to see, been talked about for a long time now. - Various code improvements in irdma, rtrs, qedr, ocrdma, irdma, rxe - Small driver improvements and minor bug fixes to hns, mlx5, rxe, mana, mlx5, irdma - Robusness improvements in completion processing for EFA - New query_port_speed() verb to move past limited IBA defined speed steps - Support for SG_GAPS in rts and many other small improvements - Rare list corruption fix in iwcm - Better support different page sizes in rxe - Device memory support for mana - Direct bio vec to kernel MR for use by NFS-RDMA - QP rate limiting for bnxt_re - Remote triggerable NULL pointer crash in siw - DMA-buf exporter support for RDMA mmaps like doorbells" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (66 commits) RDMA/mlx5: Implement DMABUF export ops RDMA/uverbs: Add DMABUF object type and operations RDMA/uverbs: Support external FD uobjects RDMA/siw: Fix potential NULL pointer dereference in header processing RDMA/umad: Reject negative data_len in ib_umad_write IB/core: Extend rate limit support for RC QPs RDMA/mlx5: Support rate limit only for Raw Packet QP RDMA/bnxt_re: Report QP rate limit in debugfs RDMA/bnxt_re: Report packet pacing capabilities when querying device RDMA/bnxt_re: Add support for QP rate limiting MAINTAINERS: Drop RDMA files from Hyper-V section RDMA/uverbs: Add __GFP_NOWARN to ib_uverbs_unmarshall_recv() kmalloc svcrdma: use bvec-based RDMA read/write API RDMA/core: add rdma_rw_max_sge() helper for SQ sizing RDMA/core: add MR support for bvec-based RDMA operations RDMA/core: use IOVA-based DMA mapping for bvec RDMA operations RDMA/core: add bio_vec based RDMA read/write API RDMA/irdma: Use kvzalloc for paged memory DMA address array RDMA/rxe: Fix race condition in QP timer handlers RDMA/mana_ib: Add device‑memory support ...

IB/core: Extend rate limit support for RC QPs

2026-02-02T13:37:59+00:00

Broadcom devices supports setting the rate limit while changing RC QP state from INIT to RTR, RTR to RTS and RTS to RTS. Signed-off-by: Kalesh AP Link: https://patch.msgid.link/20260202133413.3182578-6-kalesh-anakkur.purayil@broadcom.com Reviewed-by: Damodharam Ammepalli Signed-off-by: Leon Romanovsky