diff options
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_verbs.h')
| -rw-r--r-- | drivers/infiniband/hw/qib/qib_verbs.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h index 4876060..4a2277b 100644 --- a/drivers/infiniband/hw/qib/qib_verbs.h +++ b/drivers/infiniband/hw/qib/qib_verbs.h @@ -41,6 +41,7 @@ #include <linux/interrupt.h> #include <linux/kref.h> #include <linux/workqueue.h> +#include <linux/completion.h> #include <rdma/ib_pack.h> #include <rdma/ib_user_verbs.h> @@ -302,6 +303,8 @@ struct qib_mregion { u32 max_segs; /* number of qib_segs in all the arrays */ u32 mapsz; /* size of the map array */ u8 page_shift; /* 0 - non unform/non powerof2 sizes */ + u8 lkey_published; /* in global table */ + struct completion comp; /* complete when refcount goes to zero */ atomic_t refcount; struct qib_segarray *map[0]; /* the segments */ }; @@ -944,9 +947,9 @@ int qib_post_ud_send(struct qib_qp *qp, struct ib_send_wr *wr); void qib_ud_rcv(struct qib_ibport *ibp, struct qib_ib_header *hdr, int has_grh, void *data, u32 tlen, struct qib_qp *qp); -int qib_alloc_lkey(struct qib_lkey_table *rkt, struct qib_mregion *mr); +int qib_alloc_lkey(struct qib_mregion *mr, int dma_region); -int qib_free_lkey(struct qib_ibdev *dev, struct qib_mregion *mr); +void qib_free_lkey(struct qib_mregion *mr); int qib_lkey_ok(struct qib_lkey_table *rkt, struct qib_pd *pd, struct qib_sge *isge, struct ib_sge *sge, int acc); @@ -1014,6 +1017,27 @@ int qib_unmap_fmr(struct list_head *fmr_list); int qib_dealloc_fmr(struct ib_fmr *ibfmr); +static inline void qib_get_mr(struct qib_mregion *mr) +{ + atomic_inc(&mr->refcount); +} + +static inline void qib_put_mr(struct qib_mregion *mr) +{ + if (unlikely(atomic_dec_and_test(&mr->refcount))) + complete(&mr->comp); +} + +static inline void qib_put_ss(struct qib_sge_state *ss) +{ + while (ss->num_sge) { + qib_put_mr(ss->sge.mr); + if (--ss->num_sge) + ss->sge = *ss->sg_list++; + } +} + + void qib_release_mmap_info(struct kref *ref); struct qib_mmap_info *qib_create_mmap_info(struct qib_ibdev *dev, u32 size, |
