diff options
| author | Vipul Pandya <vipul@chelsio.com> | 2012-05-18 15:29:33 +0530 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-05-18 13:22:37 -0700 |
| commit | 67bbc05512d8a609e9a2d284dbfda9d2c50f0bf6 (patch) | |
| tree | b823f58da10c376c9be2595c97d633cbc3453dd1 | |
| parent | ec3eead217181d7360a11317a888ceb30807867c (diff) | |
| download | lwn-67bbc05512d8a609e9a2d284dbfda9d2c50f0bf6.tar.gz lwn-67bbc05512d8a609e9a2d284dbfda9d2c50f0bf6.zip | |
RDMA/cxgb4: Add query_qp support
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>
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 19 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/provider.c | 2 | ||||
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/qp.c | 11 |
3 files changed, 32 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 2d5b06b3217b..9beb3a9f0336 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -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); diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c index fe98a0a55430..e084fdc6da7f 100644 --- a/drivers/infiniband/hw/cxgb4/provider.c +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -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; diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index ba1343ee1414..45aedf1d9338 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -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; +} |