diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx4/cm.c')
-rw-r--r-- | drivers/infiniband/hw/mlx4/cm.c | 36 |
1 files changed, 13 insertions, 23 deletions
diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c index 8c79a480f2b7..ecd6cadd529a 100644 --- a/drivers/infiniband/hw/mlx4/cm.c +++ b/drivers/infiniband/hw/mlx4/cm.c @@ -168,20 +168,17 @@ static void id_map_ent_timeout(struct work_struct *work) { struct delayed_work *delay = to_delayed_work(work); struct id_map_entry *ent = container_of(delay, struct id_map_entry, timeout); - struct id_map_entry *db_ent, *found_ent; + struct id_map_entry *found_ent; struct mlx4_ib_dev *dev = ent->dev; struct mlx4_ib_sriov *sriov = &dev->sriov; struct rb_root *sl_id_map = &sriov->sl_id_map; - int pv_id = (int) ent->pv_cm_id; spin_lock(&sriov->id_map_lock); - db_ent = (struct id_map_entry *)idr_find(&sriov->pv_id_table, pv_id); - if (!db_ent) + if (!xa_erase(&sriov->pv_id_table, ent->pv_cm_id)) goto out; found_ent = id_map_find_by_sl_id(&dev->ib_dev, ent->slave_id, ent->sl_cm_id); if (found_ent && found_ent == ent) rb_erase(&found_ent->node, sl_id_map); - idr_remove(&sriov->pv_id_table, pv_id); out: list_del(&ent->list); @@ -196,13 +193,12 @@ static void id_map_find_del(struct ib_device *ibdev, int pv_cm_id) struct id_map_entry *ent, *found_ent; spin_lock(&sriov->id_map_lock); - ent = (struct id_map_entry *)idr_find(&sriov->pv_id_table, pv_cm_id); + ent = xa_erase(&sriov->pv_id_table, pv_cm_id); if (!ent) goto out; found_ent = id_map_find_by_sl_id(ibdev, ent->slave_id, ent->sl_cm_id); if (found_ent && found_ent == ent) rb_erase(&found_ent->node, sl_id_map); - idr_remove(&sriov->pv_id_table, pv_cm_id); out: spin_unlock(&sriov->id_map_lock); } @@ -256,25 +252,19 @@ id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id) ent->dev = to_mdev(ibdev); INIT_DELAYED_WORK(&ent->timeout, id_map_ent_timeout); - idr_preload(GFP_KERNEL); - spin_lock(&to_mdev(ibdev)->sriov.id_map_lock); - - ret = idr_alloc_cyclic(&sriov->pv_id_table, ent, 0, 0, GFP_NOWAIT); + ret = xa_alloc_cyclic(&sriov->pv_id_table, &ent->pv_cm_id, ent, + xa_limit_32b, &sriov->pv_id_next, GFP_KERNEL); if (ret >= 0) { - ent->pv_cm_id = (u32)ret; + spin_lock(&sriov->id_map_lock); sl_id_map_add(ibdev, ent); list_add_tail(&ent->list, &sriov->cm_list); - } - - spin_unlock(&sriov->id_map_lock); - idr_preload_end(); - - if (ret >= 0) + spin_unlock(&sriov->id_map_lock); return ent; + } /*error flow*/ kfree(ent); - mlx4_ib_warn(ibdev, "No more space in the idr (err:0x%x)\n", ret); + mlx4_ib_warn(ibdev, "Allocation failed (err:0x%x)\n", ret); return ERR_PTR(-ENOMEM); } @@ -290,7 +280,7 @@ id_map_get(struct ib_device *ibdev, int *pv_cm_id, int slave_id, int sl_cm_id) if (ent) *pv_cm_id = (int) ent->pv_cm_id; } else - ent = (struct id_map_entry *)idr_find(&sriov->pv_id_table, *pv_cm_id); + ent = xa_load(&sriov->pv_id_table, *pv_cm_id); spin_unlock(&sriov->id_map_lock); return ent; @@ -407,7 +397,7 @@ void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev) spin_lock_init(&dev->sriov.id_map_lock); INIT_LIST_HEAD(&dev->sriov.cm_list); dev->sriov.sl_id_map = RB_ROOT; - idr_init(&dev->sriov.pv_id_table); + xa_init_flags(&dev->sriov.pv_id_table, XA_FLAGS_ALLOC); } /* slave = -1 ==> all slaves */ @@ -444,7 +434,7 @@ void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave) struct id_map_entry, node); rb_erase(&ent->node, sl_id_map); - idr_remove(&sriov->pv_id_table, (int) ent->pv_cm_id); + xa_erase(&sriov->pv_id_table, ent->pv_cm_id); } list_splice_init(&dev->sriov.cm_list, &lh); } else { @@ -460,7 +450,7 @@ void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave) /* remove those nodes from databases */ list_for_each_entry_safe(map, tmp_map, &lh, list) { rb_erase(&map->node, sl_id_map); - idr_remove(&sriov->pv_id_table, (int) map->pv_cm_id); + xa_erase(&sriov->pv_id_table, map->pv_cm_id); } /* add remaining nodes from cm_list */ |