Esempi in C++ (Cpp) per VNIC_WQ_BUF_BLK_ENTRIES

Esempio n. 1

File: vnic_wq.c Progetto: 0day-ci/dpdk

static int vnic_wq_alloc_bufs(struct vnic_wq *wq)
{
	struct vnic_wq_buf *buf;
	unsigned int i, j, count = wq->ring.desc_count;
	unsigned int blks = VNIC_WQ_BUF_BLKS_NEEDED(count);

	for (i = 0; i < blks; i++) {
		wq->bufs[i] = kzalloc(VNIC_WQ_BUF_BLK_SZ(count), GFP_ATOMIC);
		if (!wq->bufs[i])
			return -ENOMEM;
	}

	for (i = 0; i < blks; i++) {
		buf = wq->bufs[i];
		for (j = 0; j < VNIC_WQ_BUF_BLK_ENTRIES(count); j++) {
			buf->index = i * VNIC_WQ_BUF_BLK_ENTRIES(count) + j;
			buf->desc = (u8 *)wq->ring.descs +
				wq->ring.desc_size * buf->index;
			if (buf->index + 1 == count) {
				buf->next = wq->bufs[0];
				break;
			} else if (j + 1 == VNIC_WQ_BUF_BLK_ENTRIES(count)) {
				buf->next = wq->bufs[i + 1];
			} else {
				buf->next = buf + 1;
				buf++;
			}
		}
	}

	wq->to_use = wq->to_clean = wq->bufs[0];

	return 0;
}

Esempio n. 2

File: vnic_wq.c Progetto: ParaStation/psmpi2

void vnic_wq_init_start(struct vnic_wq *wq, unsigned int cq_index,
	unsigned int fetch_index, unsigned int posted_index,
	unsigned int error_interrupt_enable,
	unsigned int error_interrupt_offset)
{
	u64 paddr;
	unsigned int count = wq->ring.desc_count;

	paddr = (u64)wq->ring.base_addr | VNIC_PADDR_TARGET;
	writeq(paddr, &wq->ctrl->ring_base);
	iowrite32(count, &wq->ctrl->ring_size);
	iowrite32(fetch_index, &wq->ctrl->fetch_index);
	iowrite32(posted_index, &wq->ctrl->posted_index);
	iowrite32(cq_index, &wq->ctrl->cq_index);
	iowrite32(error_interrupt_enable, &wq->ctrl->error_interrupt_enable);
	iowrite32(error_interrupt_offset, &wq->ctrl->error_interrupt_offset);
	iowrite32(0, &wq->ctrl->error_status);

	wq->to_use = wq->to_clean =
		&wq->bufs[fetch_index / VNIC_WQ_BUF_BLK_ENTRIES(count)]
			[fetch_index % VNIC_WQ_BUF_BLK_ENTRIES(count)];
}