diff options
Diffstat (limited to 'io_uring/zcrx.h')
| -rw-r--r-- | io_uring/zcrx.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/io_uring/zcrx.h b/io_uring/zcrx.h index 109c4ca36434..33ef61503092 100644 --- a/io_uring/zcrx.h +++ b/io_uring/zcrx.h @@ -16,11 +16,10 @@ struct io_zcrx_mem { unsigned long nr_folios; struct sg_table page_sg_table; unsigned long account_pages; + struct sg_table *sgt; struct dma_buf_attachment *attach; struct dma_buf *dmabuf; - struct sg_table *sgt; - unsigned long dmabuf_offset; }; struct io_zcrx_area { @@ -42,6 +41,7 @@ struct io_zcrx_area { struct io_zcrx_ifq { struct io_ring_ctx *ctx; struct io_zcrx_area *area; + unsigned niov_shift; spinlock_t rq_lock ____cacheline_aligned_in_smp; struct io_uring *rq_ring; @@ -53,12 +53,18 @@ struct io_zcrx_ifq { struct device *dev; struct net_device *netdev; netdevice_tracker netdev_tracker; - spinlock_t lock; - struct mutex dma_lock; + + /* + * Page pool and net configuration lock, can be taken deeper in the + * net stack. + */ + struct mutex pp_lock; struct io_mapped_region region; }; #if defined(CONFIG_IO_URING_ZCRX) +int io_zcrx_return_bufs(struct io_ring_ctx *ctx, + void __user *arg, unsigned nr_arg); int io_register_zcrx_ifq(struct io_ring_ctx *ctx, struct io_uring_zcrx_ifq_reg __user *arg); void io_unregister_zcrx_ifqs(struct io_ring_ctx *ctx); @@ -91,6 +97,11 @@ static inline struct io_mapped_region *io_zcrx_get_region(struct io_ring_ctx *ct { return NULL; } +static inline int io_zcrx_return_bufs(struct io_ring_ctx *ctx, + void __user *arg, unsigned nr_arg) +{ + return -EOPNOTSUPP; +} #endif int io_recvzc(struct io_kiocb *req, unsigned int issue_flags); |