diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-23 09:56:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-23 09:56:11 -0700 |
| commit | 0b776eb5426752d4e53354ac89e3710d857e09a7 (patch) | |
| tree | 1eebeeaabab90de5834b32e72d2e259dc8a4a635 /drivers/infiniband/hw/mlx4/qp.c | |
| parent | 0d6810091cdbd05efeb31654c6a41a6cbdfdd2c8 (diff) | |
| parent | 77109cc2823f025ccd66ebd9b88fbab90437b2d8 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
mlx4_core: Increase command timeout for INIT_HCA to 10 seconds
IPoIB/cm: Use common CQ for CM send completions
IB/uverbs: Fix checking of userspace object ownership
IB/mlx4: Sanity check userspace send queue sizes
IPoIB: Rewrite "if (!likely(...))" as "if (unlikely(!(...)))"
IB/ehca: Enable large page MRs by default
IB/ehca: Change meaning of hca_cap_mr_pgsize
IB/ehca: Fix ehca_encode_hwpage_size() and alloc_fmr()
IB/ehca: Fix masking error in {,re}reg_phys_mr()
IB/ehca: Supply QP token for SRQ base QPs
IPoIB: Use round_jiffies() for ah_reap_task
RDMA/cma: Fix deadlock destroying listen requests
RDMA/cma: Add locking around QP accesses
IB/mthca: Avoid alignment traps when writing doorbells
mlx4_core: Kill mlx4_write64_raw()
Diffstat (limited to 'drivers/infiniband/hw/mlx4/qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/qp.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 31a480e5b0d..6b3322486b5 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -63,6 +63,10 @@ struct mlx4_ib_sqp { u8 header_buf[MLX4_IB_UD_HEADER_SIZE]; }; +enum { + MLX4_IB_MIN_SQ_STRIDE = 6 +}; + static const __be32 mlx4_ib_opcode[] = { [IB_WR_SEND] = __constant_cpu_to_be32(MLX4_OPCODE_SEND), [IB_WR_SEND_WITH_IMM] = __constant_cpu_to_be32(MLX4_OPCODE_SEND_IMM), @@ -285,9 +289,17 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap, return 0; } -static int set_user_sq_size(struct mlx4_ib_qp *qp, +static int set_user_sq_size(struct mlx4_ib_dev *dev, + struct mlx4_ib_qp *qp, struct mlx4_ib_create_qp *ucmd) { + /* Sanity check SQ size before proceeding */ + if ((1 << ucmd->log_sq_bb_count) > dev->dev->caps.max_wqes || + ucmd->log_sq_stride > + ilog2(roundup_pow_of_two(dev->dev->caps.max_sq_desc_sz)) || + ucmd->log_sq_stride < MLX4_IB_MIN_SQ_STRIDE) + return -EINVAL; + qp->sq.wqe_cnt = 1 << ucmd->log_sq_bb_count; qp->sq.wqe_shift = ucmd->log_sq_stride; @@ -330,7 +342,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd, qp->sq_no_prefetch = ucmd.sq_no_prefetch; - err = set_user_sq_size(qp, &ucmd); + err = set_user_sq_size(dev, qp, &ucmd); if (err) goto err; |