C++ (Cpp) efx_tx_queue_get_insert_index示例

示例#1

文件： tx_tso.c 项目： majek/openonload

static inline void prefetch_ptr(struct efx_tx_queue *tx_queue)
{
	unsigned int insert_ptr = efx_tx_queue_get_insert_index(tx_queue);
	char *ptr;

	ptr = (char *) (tx_queue->buffer + insert_ptr);
	prefetch(ptr);
	prefetch(ptr + 0x80);

	ptr = (char *) (((efx_qword_t *)tx_queue->txd.buf.addr) + insert_ptr);
	prefetch(ptr);
	prefetch(ptr + 0x80);
}

示例#2

文件： tx.c 项目： forgivemyheart/linux

static inline u8 *efx_tx_get_copy_buffer(struct efx_tx_queue *tx_queue,
					 struct efx_tx_buffer *buffer)
{
	unsigned int index = efx_tx_queue_get_insert_index(tx_queue);
	struct efx_buffer *page_buf =
		&tx_queue->cb_page[index >> (PAGE_SHIFT - EFX_TX_CB_ORDER)];
	unsigned int offset =
		((index << EFX_TX_CB_ORDER) + NET_IP_ALIGN) & (PAGE_SIZE - 1);

	if (unlikely(!page_buf->addr) &&
	    efx_nic_alloc_buffer(tx_queue->efx, page_buf, PAGE_SIZE,
				 GFP_ATOMIC))
		return NULL;
	buffer->dma_addr = page_buf->dma_addr + offset;
	buffer->unmap_len = 0;
	return (u8 *)page_buf->addr + offset;
}

示例#3

文件： tx.c 项目： AkyZero/wrapfs-latest

static inline struct efx_tx_buffer *
__efx_tx_queue_get_insert_buffer(const struct efx_tx_queue *tx_queue)
{
	return &tx_queue->buffer[efx_tx_queue_get_insert_index(tx_queue)];
}