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Commit afa0e13b authored by Ram Amrani's avatar Ram Amrani Committed by Doug Ledford
Browse files

qedr: Add support for data path 



Implement fastpath verbs like ib_send_post, ib_post_recv and ib_poll_cq.

Signed-off-by: default avatarRajesh Borundia <rajesh.borundia@cavium.com>
Signed-off-by: default avatarRam Amrani <Ram.Amrani@cavium.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent e0290cce

drivers/infiniband/hw/qedr/main.c

+8 −1
Original line number Diff line number Diff line
@@ -102,7 +102,10 @@ static int qedr_register_device(struct qedr_dev *dev) 
				     QEDR_UVERBS(QUERY_QP) |

				     QEDR_UVERBS(DESTROY_QP) |

				     QEDR_UVERBS(REG_MR) |

				     QEDR_UVERBS(DEREG_MR);

				     QEDR_UVERBS(DEREG_MR) |

				     QEDR_UVERBS(POLL_CQ) |

				     QEDR_UVERBS(POST_SEND) |

				     QEDR_UVERBS(POST_RECV);



	dev->ibdev.phys_port_cnt = 1;

	dev->ibdev.num_comp_vectors = dev->num_cnq;
@@ -141,6 +144,10 @@ static int qedr_register_device(struct qedr_dev *dev) 
	dev->ibdev.alloc_mr = qedr_alloc_mr;

	dev->ibdev.map_mr_sg = qedr_map_mr_sg;



	dev->ibdev.poll_cq = qedr_poll_cq;

	dev->ibdev.post_send = qedr_post_send;

	dev->ibdev.post_recv = qedr_post_recv;



	dev->ibdev.dma_device = &dev->pdev->dev;



	dev->ibdev.get_link_layer = qedr_link_layer;

drivers/infiniband/hw/qedr/qedr.h

+19 −0
Original line number Diff line number Diff line
@@ -410,6 +410,25 @@ struct qedr_mr { 
	u32 npages;

};



#define SET_FIELD2(value, name, flag) ((value) |= ((flag) << (name ## _SHIFT)))



#define QEDR_RESP_IMM	(RDMA_CQE_RESPONDER_IMM_FLG_MASK << \

			 RDMA_CQE_RESPONDER_IMM_FLG_SHIFT)

#define QEDR_RESP_RDMA	(RDMA_CQE_RESPONDER_RDMA_FLG_MASK << \

			 RDMA_CQE_RESPONDER_RDMA_FLG_SHIFT)

#define QEDR_RESP_RDMA_IMM (QEDR_RESP_IMM | QEDR_RESP_RDMA)



static inline void qedr_inc_sw_cons(struct qedr_qp_hwq_info *info)

{

	info->cons = (info->cons + 1) % info->max_wr;

	info->wqe_cons++;

}



static inline void qedr_inc_sw_prod(struct qedr_qp_hwq_info *info)

{

	info->prod = (info->prod + 1) % info->max_wr;

}



static inline int qedr_get_dmac(struct qedr_dev *dev,

				struct ib_ah_attr *ah_attr, u8 *mac_addr)

{

drivers/infiniband/hw/qedr/qedr_hsi_rdma.h

+562 −0

File changed.

Preview size limit exceeded, changes collapsed.

drivers/infiniband/hw/qedr/verbs.c

+1020 −0

File changed.

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drivers/infiniband/hw/qedr/verbs.h

+5 −0
Original line number Diff line number Diff line
@@ -81,4 +81,9 @@ int qedr_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 


struct ib_mr *qedr_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type,

			    u32 max_num_sg);

int qedr_poll_cq(struct ib_cq *, int num_entries, struct ib_wc *wc);

int qedr_post_send(struct ib_qp *, struct ib_send_wr *,

		   struct ib_send_wr **bad_wr);

int qedr_post_recv(struct ib_qp *, struct ib_recv_wr *,

		   struct ib_recv_wr **bad_wr);

#endif