diff options
Diffstat (limited to 'drivers/infiniband/hw/cxgb3/iwch.h')
| -rw-r--r-- | drivers/infiniband/hw/cxgb3/iwch.h | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch.h b/drivers/infiniband/hw/cxgb3/iwch.h index 3773453b2cf..837862287a2 100644 --- a/drivers/infiniband/hw/cxgb3/iwch.h +++ b/drivers/infiniband/hw/cxgb3/iwch.h @@ -36,6 +36,7 @@ #include <linux/list.h> #include <linux/spinlock.h> #include <linux/idr.h> +#include <linux/workqueue.h> #include <rdma/ib_verbs.h> @@ -110,6 +111,7 @@ struct iwch_dev { struct idr mmidr; spinlock_t lock; struct list_head entry; + struct delayed_work db_drop_task; }; static inline struct iwch_dev *to_iwch_dev(struct ib_device *ibdev) @@ -117,6 +119,11 @@ static inline struct iwch_dev *to_iwch_dev(struct ib_device *ibdev) return container_of(ibdev, struct iwch_dev, ibdev); } +static inline struct iwch_dev *rdev_to_iwch_dev(struct cxio_rdev *rdev) +{ + return container_of(rdev, struct iwch_dev, rdev); +} + static inline int t3b_device(const struct iwch_dev *rhp) { return rhp->rdev.t3cdev_p->type == T3B; @@ -146,19 +153,17 @@ static inline int insert_handle(struct iwch_dev *rhp, struct idr *idr, void *handle, u32 id) { int ret; - int newid; - - do { - if (!idr_pre_get(idr, GFP_KERNEL)) { - return -ENOMEM; - } - spin_lock_irq(&rhp->lock); - ret = idr_get_new_above(idr, handle, id, &newid); - BUG_ON(newid != id); - spin_unlock_irq(&rhp->lock); - } while (ret == -EAGAIN); - - return ret; + + idr_preload(GFP_KERNEL); + spin_lock_irq(&rhp->lock); + + ret = idr_alloc(idr, handle, id, id + 1, GFP_NOWAIT); + + spin_unlock_irq(&rhp->lock); + idr_preload_end(); + + BUG_ON(ret == -ENOSPC); + return ret < 0 ? ret : 0; } static inline void remove_handle(struct iwch_dev *rhp, struct idr *idr, u32 id) |