forked from mirrors/linux
371bb62158
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl0Os1seHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGtx4H/j6i482XzcGFKTBm A7mBoQpy+kLtoUov4EtBAR62OuwI8rsahW9di37QKndPoQrczWaKBmr3De6LCdPe v3pl3O6wBbvH5ru+qBPFX9PdNbDvimEChh7LHxmMxNQq3M+AjZAZVJyfpoiFnx35 Fbge+LZaH/k8HMwZmkMr5t9Mpkip715qKg2o9Bua6dkH0AqlcpLlC8d9a+HIVw/z aAsyGSU8jRwhoAOJsE9bJf0acQ/pZSqmFp0rDKqeFTSDMsbDRKLGq/dgv4nW0RiW s7xqsjb/rdcvirRj3rv9+lcTVkOtEqwk0PVdL9WOf7g4iYrb3SOIZh8ZyViaDSeH VTS5zps= =huBY -----END PGP SIGNATURE----- Merge tag 'v5.2-rc6' into rdma.git for-next For dependencies in next patches. Resolve conflicts: - Use uverbs_get_cleared_udata() with new cq allocation flow - Continue to delete nes despite SPDX conflict - Resolve list appends in mlx5_command_str() - Use u16 for vport_rule stuff - Resolve list appends in struct ib_client Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2016 HGST, a Western Digital Company.
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*/
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#ifndef _RDMA_RW_H
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#define _RDMA_RW_H
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#include <linux/dma-mapping.h>
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#include <linux/scatterlist.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/rdma_cm.h>
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#include <rdma/mr_pool.h>
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struct rdma_rw_ctx {
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/* number of RDMA READ/WRITE WRs (not counting MR WRs) */
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u32 nr_ops;
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/* tag for the union below: */
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u8 type;
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union {
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/* for mapping a single SGE: */
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struct {
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struct ib_sge sge;
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struct ib_rdma_wr wr;
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} single;
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/* for mapping of multiple SGEs: */
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struct {
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struct ib_sge *sges;
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struct ib_rdma_wr *wrs;
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} map;
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/* for registering multiple WRs: */
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struct rdma_rw_reg_ctx {
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struct ib_sge sge;
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struct ib_rdma_wr wr;
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struct ib_reg_wr reg_wr;
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struct ib_send_wr inv_wr;
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struct ib_mr *mr;
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} *reg;
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};
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};
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int rdma_rw_ctx_init(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u8 port_num,
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struct scatterlist *sg, u32 sg_cnt, u32 sg_offset,
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u64 remote_addr, u32 rkey, enum dma_data_direction dir);
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void rdma_rw_ctx_destroy(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u8 port_num,
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struct scatterlist *sg, u32 sg_cnt,
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enum dma_data_direction dir);
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int rdma_rw_ctx_signature_init(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
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u8 port_num, struct scatterlist *sg, u32 sg_cnt,
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struct scatterlist *prot_sg, u32 prot_sg_cnt,
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struct ib_sig_attrs *sig_attrs, u64 remote_addr, u32 rkey,
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enum dma_data_direction dir);
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void rdma_rw_ctx_destroy_signature(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
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u8 port_num, struct scatterlist *sg, u32 sg_cnt,
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struct scatterlist *prot_sg, u32 prot_sg_cnt,
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enum dma_data_direction dir);
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struct ib_send_wr *rdma_rw_ctx_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
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u8 port_num, struct ib_cqe *cqe, struct ib_send_wr *chain_wr);
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int rdma_rw_ctx_post(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u8 port_num,
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struct ib_cqe *cqe, struct ib_send_wr *chain_wr);
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unsigned int rdma_rw_mr_factor(struct ib_device *device, u8 port_num,
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unsigned int maxpages);
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void rdma_rw_init_qp(struct ib_device *dev, struct ib_qp_init_attr *attr);
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int rdma_rw_init_mrs(struct ib_qp *qp, struct ib_qp_init_attr *attr);
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void rdma_rw_cleanup_mrs(struct ib_qp *qp);
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#endif /* _RDMA_RW_H */
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