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Commit 67bbc055 authored by Vipul Pandya's avatar Vipul Pandya Committed by Roland Dreier
Browse files

RDMA/cxgb4: Add query_qp support 



This allows querying the QP state before flushing.

Signed-off-by: default avatarVipul Pandya <vipul@chelsio.com>
Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent ec3eead2

drivers/infiniband/hw/cxgb4/iw_cxgb4.h

+19 −0
Original line number Diff line number Diff line
@@ -551,6 +551,23 @@ static inline int c4iw_convert_state(enum ib_qp_state ib_state) 
	}

}



static inline int to_ib_qp_state(int c4iw_qp_state)

{

	switch (c4iw_qp_state) {

	case C4IW_QP_STATE_IDLE:

		return IB_QPS_INIT;

	case C4IW_QP_STATE_RTS:

		return IB_QPS_RTS;

	case C4IW_QP_STATE_CLOSING:

		return IB_QPS_SQD;

	case C4IW_QP_STATE_TERMINATE:

		return IB_QPS_SQE;

	case C4IW_QP_STATE_ERROR:

		return IB_QPS_ERR;

	}

	return IB_QPS_ERR;

}



static inline u32 c4iw_ib_to_tpt_access(int a)

{

	return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) |
@@ -846,6 +863,8 @@ struct ib_qp *c4iw_create_qp(struct ib_pd *pd, 
			     struct ib_udata *udata);

int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,

				 int attr_mask, struct ib_udata *udata);

int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,

		     int attr_mask, struct ib_qp_init_attr *init_attr);

struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn);

u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size);

void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size);

drivers/infiniband/hw/cxgb4/provider.c

+2 −0
Original line number Diff line number Diff line
@@ -443,6 +443,7 @@ int c4iw_register_device(struct c4iw_dev *dev) 
	    (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |

	    (1ull << IB_USER_VERBS_CMD_CREATE_QP) |

	    (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |

	    (1ull << IB_USER_VERBS_CMD_QUERY_QP) |

	    (1ull << IB_USER_VERBS_CMD_POLL_CQ) |

	    (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |

	    (1ull << IB_USER_VERBS_CMD_POST_SEND) |
@@ -465,6 +466,7 @@ int c4iw_register_device(struct c4iw_dev *dev) 
	dev->ibdev.destroy_ah = c4iw_ah_destroy;

	dev->ibdev.create_qp = c4iw_create_qp;

	dev->ibdev.modify_qp = c4iw_ib_modify_qp;

	dev->ibdev.query_qp = c4iw_ib_query_qp;

	dev->ibdev.destroy_qp = c4iw_destroy_qp;

	dev->ibdev.create_cq = c4iw_create_cq;

	dev->ibdev.destroy_cq = c4iw_destroy_cq;

drivers/infiniband/hw/cxgb4/qp.c

+11 −0
Original line number Diff line number Diff line
@@ -1711,3 +1711,14 @@ struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn) 
	PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);

	return (struct ib_qp *)get_qhp(to_c4iw_dev(dev), qpn);

}



int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,

		     int attr_mask, struct ib_qp_init_attr *init_attr)

{

	struct c4iw_qp *qhp = to_c4iw_qp(ibqp);



	memset(attr, 0, sizeof *attr);

	memset(init_attr, 0, sizeof *init_attr);

	attr->qp_state = to_ib_qp_state(qhp->attr.state);

	return 0;

}