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[PATCH] IB/mthca: Add SRQ implementation

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Add mthca support for shared receive queues (SRQs),
including userspace SRQs.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier
2005-08-19 10:59:31 -07:00
committed by Roland Dreier
parent d20a401928
commit ec34a922d2
13 changed files with 857 additions and 25 deletions
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28
drivers/infiniband/hw/mthca/mthca_provider.h
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@@ -197,6 +197,29 @@ struct mthca_cq {
wait_queue_head_t wait;
};
struct mthca_srq {
struct ib_srq ibsrq;
spinlock_t lock;
atomic_t refcount;
int srqn;
int max;
int max_gs;
int wqe_shift;
int first_free;
int last_free;
u16 counter; /* Arbel only */
int db_index; /* Arbel only */
__be32 *db; /* Arbel only */
void *last;
int is_direct;
u64 *wrid;
union mthca_buf queue;
struct mthca_mr mr;
wait_queue_head_t wait;
};
struct mthca_wq {
spinlock_t lock;
int max;
@@ -277,6 +300,11 @@ static inline struct mthca_cq *to_mcq(struct ib_cq *ibcq)
return container_of(ibcq, struct mthca_cq, ibcq);
}
static inline struct mthca_srq *to_msrq(struct ib_srq *ibsrq)
{
return container_of(ibsrq, struct mthca_srq, ibsrq);
}
static inline struct mthca_qp *to_mqp(struct ib_qp *ibqp)
{
return container_of(ibqp, struct mthca_qp, ibqp);