This series removes the support for FMR mode to register memory. This ancient mode is unsafe (rkeys that are usually exposed for caching purposes and the API is limited to page granularity mappings) and not maintained/tested in the last few years. It also doesn't have any reasonable advantage over other memory registration methods such as FRWR (that is implemented in all the recent RDMA adapters). This series should be reviewed and approved by the maintainer of the effected drivers and I suggest to test it as well. The tests that I made for this series (fio benchmarks and fio verify data): 1. iSER initiator on ConnectX-4 2. iSER initiator on ConnectX-3 3. SRP initiator on ConnectX-4 (loopback to SRP target) 4. SRP initiator on ConnectX-3 Not tested: 1. RDS 2. mthca 3. rdmavt Changes from V1: - added "RDMA/mlx5: Remove FMR leftovers" (from GalP) - rebased on top of "Linux 5.7-rc7" - added "Reviewed-by" Bart signature for SRP Gal Pressman (1): RDMA/mlx5: Remove FMR leftovers Israel Rukshin (1): RDMA/iser: Remove support for FMR memory registration Max Gurtovoy (7): RDMA/mlx4: remove FMR support for memory registration RDMA/rds: remove FMR support for memory registration RDMA/mthca: remove FMR support for memory registration RDMA/rdmavt: remove FMR memory registration RDMA/srp: remove support for FMR memory registration RDMA/core: remove FMR pool API RDMA/core: remove FMR device ops Documentation/driver-api/infiniband.rst | 3 - Documentation/infiniband/core_locking.rst | 2 - drivers/infiniband/core/Makefile | 2 +- drivers/infiniband/core/device.c | 4 - drivers/infiniband/core/fmr_pool.c | 494 --------------------------- drivers/infiniband/core/verbs.c | 48 --- drivers/infiniband/hw/mlx4/main.c | 10 - drivers/infiniband/hw/mlx4/mlx4_ib.h | 16 - drivers/infiniband/hw/mlx4/mr.c | 93 ----- drivers/infiniband/hw/mlx5/mlx5_ib.h | 8 - drivers/infiniband/hw/mthca/mthca_dev.h | 10 - drivers/infiniband/hw/mthca/mthca_mr.c | 262 +------------- drivers/infiniband/hw/mthca/mthca_provider.c | 86 ----- drivers/infiniband/sw/rdmavt/mr.c | 154 --------- drivers/infiniband/sw/rdmavt/mr.h | 15 - drivers/infiniband/sw/rdmavt/vt.c | 4 - drivers/infiniband/ulp/iser/iscsi_iser.h | 79 +---- drivers/infiniband/ulp/iser/iser_initiator.c | 19 +- drivers/infiniband/ulp/iser/iser_memory.c | 188 +--------- drivers/infiniband/ulp/iser/iser_verbs.c | 126 +------ drivers/infiniband/ulp/srp/ib_srp.c | 222 +----------- drivers/infiniband/ulp/srp/ib_srp.h | 27 +- drivers/net/ethernet/mellanox/mlx4/mr.c | 183 ---------- include/linux/mlx4/device.h | 21 +- include/rdma/ib_fmr_pool.h | 93 ----- include/rdma/ib_verbs.h | 45 --- net/rds/Makefile | 2 +- net/rds/ib.c | 14 +- net/rds/ib.h | 1 - net/rds/ib_cm.c | 4 +- net/rds/ib_fmr.c | 269 --------------- net/rds/ib_mr.h | 12 - net/rds/ib_rdma.c | 16 +- 33 files changed, 77 insertions(+), 2455 deletions(-) delete mode 100644 drivers/infiniband/core/fmr_pool.c delete mode 100644 include/rdma/ib_fmr_pool.h delete mode 100644 net/rds/ib_fmr.c -- 1.8.3.1
