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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-14 09:27:13 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-14 09:27:13 -0800 |
commit | ab425febda94c7d287ea3433cbd0971771d6aeb4 (patch) | |
tree | 66240fae1e9720214afda604635c3f0da0b9ebfa /drivers/infiniband/hw/mana/cq.c | |
parent | 08cdc2157966c07d3f986a097ddaa74cee312751 (diff) | |
parent | dbc94a0fb81771a38733c0e8f2ea8c4fa6934dc1 (diff) | |
download | linux-ab425febda94c7d287ea3433cbd0971771d6aeb4.tar.bz2 |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma updates from Jason Gunthorpe:
"Usual size of updates, a new driver, and most of the bulk focusing on
rxe:
- Usual typos, style, and language updates
- Driver updates for mlx5, irdma, siw, rts, srp, hfi1, hns, erdma,
mlx4, srp
- Lots of RXE updates:
* Improve reply error handling for bad MR operations
* Code tidying
* Debug printing uses common loggers
* Remove half implemented RD related stuff
* Support IBA's recently defined Atomic Write and Flush operations
- erdma support for atomic operations
- New driver 'mana' for Ethernet HW available in Azure VMs. This
driver only supports DPDK"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (122 commits)
IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces
RDMA: Add missed netdev_put() for the netdevice_tracker
RDMA/rxe: Enable RDMA FLUSH capability for rxe device
RDMA/cm: Make QP FLUSHABLE for supported device
RDMA/rxe: Implement flush completion
RDMA/rxe: Implement flush execution in responder side
RDMA/rxe: Implement RC RDMA FLUSH service in requester side
RDMA/rxe: Extend rxe packet format to support flush
RDMA/rxe: Allow registering persistent flag for pmem MR only
RDMA/rxe: Extend rxe user ABI to support flush
RDMA: Extend RDMA kernel verbs ABI to support flush
RDMA: Extend RDMA user ABI to support flush
RDMA/rxe: Fix incorrect responder length checking
RDMA/rxe: Fix oops with zero length reads
RDMA/mlx5: Remove not-used IB_FLOW_SPEC_IB define
RDMA/hns: Fix XRC caps on HIP08
RDMA/hns: Fix error code of CMD
RDMA/hns: Fix page size cap from firmware
RDMA/hns: Fix PBL page MTR find
RDMA/hns: Fix AH attr queried by query_qp
...
Diffstat (limited to 'drivers/infiniband/hw/mana/cq.c')
-rw-r--r-- | drivers/infiniband/hw/mana/cq.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mana/cq.c b/drivers/infiniband/hw/mana/cq.c new file mode 100644 index 000000000000..d141cab8a1e6 --- /dev/null +++ b/drivers/infiniband/hw/mana/cq.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022, Microsoft Corporation. All rights reserved. + */ + +#include "mana_ib.h" + +int mana_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, + struct ib_udata *udata) +{ + struct mana_ib_cq *cq = container_of(ibcq, struct mana_ib_cq, ibcq); + struct ib_device *ibdev = ibcq->device; + struct mana_ib_create_cq ucmd = {}; + struct mana_ib_dev *mdev; + int err; + + mdev = container_of(ibdev, struct mana_ib_dev, ib_dev); + + if (udata->inlen < sizeof(ucmd)) + return -EINVAL; + + err = ib_copy_from_udata(&ucmd, udata, min(sizeof(ucmd), udata->inlen)); + if (err) { + ibdev_dbg(ibdev, + "Failed to copy from udata for create cq, %d\n", err); + return err; + } + + if (attr->cqe > MAX_SEND_BUFFERS_PER_QUEUE) { + ibdev_dbg(ibdev, "CQE %d exceeding limit\n", attr->cqe); + return -EINVAL; + } + + cq->cqe = attr->cqe; + cq->umem = ib_umem_get(ibdev, ucmd.buf_addr, cq->cqe * COMP_ENTRY_SIZE, + IB_ACCESS_LOCAL_WRITE); + if (IS_ERR(cq->umem)) { + err = PTR_ERR(cq->umem); + ibdev_dbg(ibdev, "Failed to get umem for create cq, err %d\n", + err); + return err; + } + + err = mana_ib_gd_create_dma_region(mdev, cq->umem, &cq->gdma_region); + if (err) { + ibdev_dbg(ibdev, + "Failed to create dma region for create cq, %d\n", + err); + goto err_release_umem; + } + + ibdev_dbg(ibdev, + "mana_ib_gd_create_dma_region ret %d gdma_region 0x%llx\n", + err, cq->gdma_region); + + /* + * The CQ ID is not known at this time. The ID is generated at create_qp + */ + + return 0; + +err_release_umem: + ib_umem_release(cq->umem); + return err; +} + +int mana_ib_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata) +{ + struct mana_ib_cq *cq = container_of(ibcq, struct mana_ib_cq, ibcq); + struct ib_device *ibdev = ibcq->device; + struct mana_ib_dev *mdev; + + mdev = container_of(ibdev, struct mana_ib_dev, ib_dev); + + mana_ib_gd_destroy_dma_region(mdev, cq->gdma_region); + ib_umem_release(cq->umem); + + return 0; +} |