diff options
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_srq.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_srq.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c index 0f316c87bf64..f5d7677d1079 100644 --- a/drivers/infiniband/hw/mthca/mthca_srq.c +++ b/drivers/infiniband/hw/mthca/mthca_srq.c @@ -35,6 +35,8 @@ #include <linux/slab.h> #include <linux/string.h> +#include <asm/io.h> + #include "mthca_dev.h" #include "mthca_cmd.h" #include "mthca_memfree.h" @@ -201,6 +203,8 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd, if (mthca_is_memfree(dev)) srq->max = roundup_pow_of_two(srq->max + 1); + else + srq->max = srq->max + 1; ds = max(64UL, roundup_pow_of_two(sizeof (struct mthca_next_seg) + @@ -277,7 +281,7 @@ int mthca_alloc_srq(struct mthca_dev *dev, struct mthca_pd *pd, srq->first_free = 0; srq->last_free = srq->max - 1; - attr->max_wr = (mthca_is_memfree(dev)) ? srq->max - 1 : srq->max; + attr->max_wr = srq->max - 1; attr->max_sge = srq->max_gs; return 0; @@ -413,7 +417,7 @@ int mthca_query_srq(struct ib_srq *ibsrq, struct ib_srq_attr *srq_attr) srq_attr->srq_limit = be16_to_cpu(tavor_ctx->limit_watermark); } - srq_attr->max_wr = (mthca_is_memfree(dev)) ? srq->max - 1 : srq->max; + srq_attr->max_wr = srq->max - 1; srq_attr->max_sge = srq->max_gs; out: @@ -593,6 +597,12 @@ int mthca_tavor_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr, MTHCA_GET_DOORBELL_LOCK(&dev->doorbell_lock)); } + /* + * Make sure doorbells don't leak out of SRQ spinlock and + * reach the HCA out of order: + */ + mmiowb(); + spin_unlock_irqrestore(&srq->lock, flags); return err; } |
