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IB/core: add RW API support for signature MRs

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Christoph Hellwig
2016-05-03 18:01:12 +02:00
committed by Doug Ledford
parent b99f8e4d7b
commit 0e353e34e1
4 changed files with 246 additions and 7 deletions
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19
include/rdma/rw.h
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@@ -47,6 +47,15 @@ struct rdma_rw_ctx {
struct ib_send_wr inv_wr;
struct ib_mr *mr;
} *reg;
struct {
struct rdma_rw_reg_ctx data;
struct rdma_rw_reg_ctx prot;
struct ib_send_wr sig_inv_wr;
struct ib_mr *sig_mr;
struct ib_sge sig_sge;
struct ib_sig_handover_wr sig_wr;
} *sig;
};
};
@@ -57,6 +66,16 @@ void rdma_rw_ctx_destroy(struct rdma_rw_ctx *ctx, struct ib_qp *qp, u8 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,
u8 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,
u8 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,
u8 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, u8 port_num,