FM / rdma

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/rdma/

/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/rdma

Name	Size	Mode	Actions
ib.h	2138	0644	edit dl rm
iba.h	5642	0644	edit dl rm
ibta_vol1_c12.h	13251	0644	edit dl rm
ib_addr.h	7308	0644	edit dl rm
ib_cache.h	4329	0644	edit dl rm
ib_cm.h	17133	0644	edit dl rm
ib_hdrs.h	6988	0644	edit dl rm
ib_mad.h	25064	0644	edit dl rm
ib_marshall.h	778	0644	edit dl rm
ib_pack.h	8082	0644	edit dl rm
ib_pma.h	4268	0644	edit dl rm
ib_sa.h	19997	0644	edit dl rm
ib_smi.h	4600	0644	edit dl rm
ib_sysfs.h	1257	0644	edit dl rm
ib_umem.h	4367	0644	edit dl rm
ib_umem_odp.h	4787	0644	edit dl rm
ib_verbs.h	143465	0644	edit dl rm
iw_cm.h	7294	0644	edit dl rm
iw_portmap.h	2244	0644	edit dl rm
lag.h	530	0644	edit dl rm
mr_pool.h	975	0644	edit dl rm
opa_addr.h	2452	0644	edit dl rm
opa_port_info.h	13751	0644	edit dl rm
opa_smi.h	3074	0644	edit dl rm
opa_vnic.h	2034	0644	edit dl rm
rdmavt_cq.h	1783	0644	edit dl rm
rdmavt_mr.h	4038	0644	edit dl rm
rdmavt_qp.h	28687	0644	edit dl rm
rdma_cm.h	13438	0644	edit dl rm
rdma_cm_ib.h	797	0644	edit dl rm
rdma_counter.h	1920	0644	edit dl rm
rdma_netlink.h	4062	0644	edit dl rm
rdma_vt.h	14561	0644	edit dl rm
restrack.h	4304	0644	edit dl rm
rw.h	2682	0644	edit dl rm
signature.h	2969	0644	edit dl rm
tid_rdma_defs.h	2100	0644	edit dl rm
uverbs_ioctl.h	33079	0644	edit dl rm
uverbs_named_ioctl.h	4836	0644	edit dl rm
uverbs_std_types.h	5355	0644	edit dl rm
uverbs_types.h	6210	0644	edit dl rm

Edit: /usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/include/rdma/rw.h (2682B)

/*
 * Copyright (c) 2016 HGST, a Western Digital Company.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */
#ifndef _RDMA_RW_H
#define _RDMA_RW_H

#include <linux/dma-mapping.h>
#include <linux/scatterlist.h>
#include <rdma/ib_verbs.h>
#include <rdma/rdma_cm.h>
#include <rdma/mr_pool.h>

struct rdma_rw_ctx {
	/* number of RDMA READ/WRITE WRs (not counting MR WRs) */
	u32			nr_ops;

/* tag for the union below: */
	u8			type;

union {
		/* for mapping a single SGE: */
		struct {
			struct ib_sge		sge;
			struct ib_rdma_wr	wr;
		} single;

/* for mapping of multiple SGEs: */
		struct {
			struct ib_sge		*sges;
			struct ib_rdma_wr	*wrs;
		} map;

/* for registering multiple WRs: */
		struct rdma_rw_reg_ctx {
			struct ib_sge		sge;
			struct ib_rdma_wr	wr;
			struct ib_reg_wr	reg_wr;
			struct ib_send_wr	inv_wr;
			struct ib_mr		*mr;
		} *reg;
	};
};

int rdma_rw_ctx_init(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u32 port_num,
		struct scatterlist *sg, u32 sg_cnt, u32 sg_offset,
		u64 remote_addr, u32 rkey, enum dma_data_direction dir);
void rdma_rw_ctx_destroy(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
			 u32 port_num, struct scatterlist *sg, u32 sg_cnt,
			 enum dma_data_direction dir);

int rdma_rw_ctx_signature_init(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
		u32 port_num, struct scatterlist *sg, u32 sg_cnt,
		struct scatterlist *prot_sg, u32 prot_sg_cnt,
		struct ib_sig_attrs *sig_attrs, u64 remote_addr, u32 rkey,
		enum dma_data_direction dir);
void rdma_rw_ctx_destroy_signature(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
		u32 port_num, struct scatterlist *sg, u32 sg_cnt,
		struct scatterlist *prot_sg, u32 prot_sg_cnt,
		enum dma_data_direction dir);

struct ib_send_wr *rdma_rw_ctx_wrs(struct rdma_rw_ctx *ctx, struct ib_qp *qp,
		u32 port_num, struct ib_cqe *cqe, struct ib_send_wr *chain_wr);
int rdma_rw_ctx_post(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u32 port_num,
		struct ib_cqe *cqe, struct ib_send_wr *chain_wr);

unsigned int rdma_rw_mr_factor(struct ib_device *device, u32 port_num,
		unsigned int maxpages);
void rdma_rw_init_qp(struct ib_device *dev, struct ib_qp_init_attr *attr);
int rdma_rw_init_mrs(struct ib_qp *qp, struct ib_qp_init_attr *attr);
void rdma_rw_cleanup_mrs(struct ib_qp *qp);

#endif /* _RDMA_RW_H */

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