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RDMA/cxgb4: Add query_qp support

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This allows querying the QP state before flushing.

Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Vipul Pandya 2012-05-18 15:29:33 +05:30 committed by Roland Dreier
parent ec3eead217
commit 67bbc05512
3 changed files with 32 additions and 0 deletions
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19
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
View file

@ -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);

2
drivers/infiniband/hw/cxgb4/provider.c
View file

@ -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;

11
drivers/infiniband/hw/cxgb4/qp.c
View file

@ -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;
}