diff options
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_cq.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_cq.c | 53 |
1 files changed, 19 insertions, 34 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c index be6e1e03bda..6bd9f139334 100644 --- a/drivers/infiniband/hw/mthca/mthca_cq.c +++ b/drivers/infiniband/hw/mthca/mthca_cq.c @@ -204,16 +204,11 @@ static void dump_cqe(struct mthca_dev *dev, void *cqe_ptr) static inline void update_cons_index(struct mthca_dev *dev, struct mthca_cq *cq, int incr) { - __be32 doorbell[2]; - if (mthca_is_memfree(dev)) { *cq->set_ci_db = cpu_to_be32(cq->cons_index); wmb(); } else { - doorbell[0] = cpu_to_be32(MTHCA_TAVOR_CQ_DB_INC_CI | cq->cqn); - doorbell[1] = cpu_to_be32(incr - 1); - - mthca_write64(doorbell, + mthca_write64(MTHCA_TAVOR_CQ_DB_INC_CI | cq->cqn, incr - 1, dev->kar + MTHCA_CQ_DOORBELL, MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock)); /* @@ -731,17 +726,12 @@ repoll: int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags) { - __be32 doorbell[2]; + u32 dbhi = ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ? + MTHCA_TAVOR_CQ_DB_REQ_NOT_SOL : + MTHCA_TAVOR_CQ_DB_REQ_NOT) | + to_mcq(cq)->cqn; - doorbell[0] = cpu_to_be32(((flags & IB_CQ_SOLICITED_MASK) == - IB_CQ_SOLICITED ? - MTHCA_TAVOR_CQ_DB_REQ_NOT_SOL : - MTHCA_TAVOR_CQ_DB_REQ_NOT) | - to_mcq(cq)->cqn); - doorbell[1] = (__force __be32) 0xffffffff; - - mthca_write64(doorbell, - to_mdev(cq->device)->kar + MTHCA_CQ_DOORBELL, + mthca_write64(dbhi, 0xffffffff, to_mdev(cq->device)->kar + MTHCA_CQ_DOORBELL, MTHCA_GET_DOORBELL_LOCK(&to_mdev(cq->device)->doorbell_lock)); return 0; @@ -750,19 +740,16 @@ int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags) int mthca_arbel_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) { struct mthca_cq *cq = to_mcq(ibcq); - __be32 doorbell[2]; - u32 sn; - __be32 ci; - - sn = cq->arm_sn & 3; - ci = cpu_to_be32(cq->cons_index); + __be32 db_rec[2]; + u32 dbhi; + u32 sn = cq->arm_sn & 3; - doorbell[0] = ci; - doorbell[1] = cpu_to_be32((cq->cqn << 8) | (2 << 5) | (sn << 3) | - ((flags & IB_CQ_SOLICITED_MASK) == - IB_CQ_SOLICITED ? 1 : 2)); + db_rec[0] = cpu_to_be32(cq->cons_index); + db_rec[1] = cpu_to_be32((cq->cqn << 8) | (2 << 5) | (sn << 3) | + ((flags & IB_CQ_SOLICITED_MASK) == + IB_CQ_SOLICITED ? 1 : 2)); - mthca_write_db_rec(doorbell, cq->arm_db); + mthca_write_db_rec(db_rec, cq->arm_db); /* * Make sure that the doorbell record in host memory is @@ -770,14 +757,12 @@ int mthca_arbel_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) */ wmb(); - doorbell[0] = cpu_to_be32((sn << 28) | - ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ? - MTHCA_ARBEL_CQ_DB_REQ_NOT_SOL : - MTHCA_ARBEL_CQ_DB_REQ_NOT) | - cq->cqn); - doorbell[1] = ci; + dbhi = (sn << 28) | + ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ? + MTHCA_ARBEL_CQ_DB_REQ_NOT_SOL : + MTHCA_ARBEL_CQ_DB_REQ_NOT) | cq->cqn; - mthca_write64(doorbell, + mthca_write64(dbhi, cq->cons_index, to_mdev(ibcq->device)->kar + MTHCA_CQ_DOORBELL, MTHCA_GET_DOORBELL_LOCK(&to_mdev(ibcq->device)->doorbell_lock)); |