C++ (Cpp) wil_vring_is_empty Examples

Example #1

File: txrx.c Project: BORETS24/common.git-android-4.4

static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
			   int tx)
{
	struct device *dev = wil_to_dev(wil);
	size_t sz = vring->size * sizeof(vring->va[0]);

	if (tx) {
		int vring_index = vring - wil->vring_tx;

		wil_dbg_misc(wil, "free Tx vring %d [%d] 0x%p:%pad 0x%p\n",
			     vring_index, vring->size, vring->va,
			     &vring->pa, vring->ctx);
	} else {
		wil_dbg_misc(wil, "free Rx vring [%d] 0x%p:%pad 0x%p\n",
			     vring->size, vring->va,
			     &vring->pa, vring->ctx);
	}

	while (!wil_vring_is_empty(vring)) {
		dma_addr_t pa;
		u16 dmalen;
		struct wil_ctx *ctx;

		if (tx) {
			struct vring_tx_desc dd, *d = ⅆ
			volatile struct vring_tx_desc *_d =
					&vring->va[vring->swtail].tx;

			ctx = &vring->ctx[vring->swtail];
			*d = *_d;
			wil_txdesc_unmap(dev, d, ctx);
			if (ctx->skb)
				dev_kfree_skb_any(ctx->skb);
			vring->swtail = wil_vring_next_tail(vring);
		} else { /* rx */
			struct vring_rx_desc dd, *d = ⅆ
			volatile struct vring_rx_desc *_d =
					&vring->va[vring->swhead].rx;

			ctx = &vring->ctx[vring->swhead];
			*d = *_d;
			pa = wil_desc_addr(&d->dma.addr);
			dmalen = le16_to_cpu(d->dma.length);
			dma_unmap_single(dev, pa, dmalen, DMA_FROM_DEVICE);
			kfree_skb(ctx->skb);
			wil_vring_advance_head(vring, 1);
		}
	}
	dma_free_coherent(dev, sz, (void *)vring->va, vring->pa);
	kfree(vring->ctx);
	vring->pa = 0;
	vring->va = NULL;
	vring->ctx = NULL;
}

Example #2

File: txrx.c Project: Cool-Joe/imx23-audio

static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
			   int tx)
{
	struct device *dev = wil_to_dev(wil);
	size_t sz = vring->size * sizeof(vring->va[0]);

	while (!wil_vring_is_empty(vring)) {
		dma_addr_t pa;
		struct sk_buff *skb;
		u16 dmalen;

		if (tx) {
			struct vring_tx_desc dd, *d = ⅆ
			volatile struct vring_tx_desc *_d =
					&vring->va[vring->swtail].tx;

			*d = *_d;
			pa = wil_desc_addr(&d->dma.addr);
			dmalen = le16_to_cpu(d->dma.length);
			skb = vring->ctx[vring->swtail];
			if (skb) {
				dma_unmap_single(dev, pa, dmalen,
						 DMA_TO_DEVICE);
				dev_kfree_skb_any(skb);
				vring->ctx[vring->swtail] = NULL;
			} else {
				dma_unmap_page(dev, pa, dmalen,
					       DMA_TO_DEVICE);
			}
			vring->swtail = wil_vring_next_tail(vring);
		} else { /* rx */
			struct vring_rx_desc dd, *d = ⅆ
			volatile struct vring_rx_desc *_d =
					&vring->va[vring->swtail].rx;

			*d = *_d;
			pa = wil_desc_addr(&d->dma.addr);
			dmalen = le16_to_cpu(d->dma.length);
			skb = vring->ctx[vring->swhead];
			dma_unmap_single(dev, pa, dmalen, DMA_FROM_DEVICE);
			kfree_skb(skb);
			wil_vring_advance_head(vring, 1);
		}
	}
	dma_free_coherent(dev, sz, (void *)vring->va, vring->pa);
	kfree(vring->ctx);
	vring->pa = 0;
	vring->va = NULL;
	vring->ctx = NULL;
}

Example #3

File: txrx.c Project: 174high/dell-driver

static void wil_vring_free(struct wil6210_priv *wil, struct vring *vring,
			   int tx)
{
	struct device *dev = wil_to_dev(wil);
	size_t sz = vring->size * sizeof(vring->va[0]);

	while (!wil_vring_is_empty(vring)) {
		if (tx) {
			volatile struct vring_tx_desc *d =
					&vring->va[vring->swtail].tx;
			dma_addr_t pa = d->dma.addr_low |
					((u64)d->dma.addr_high << 32);
			struct sk_buff *skb = vring->ctx[vring->swtail];
			if (skb) {
				dma_unmap_single(dev, pa, d->dma.length,
						 DMA_TO_DEVICE);
				dev_kfree_skb_any(skb);
				vring->ctx[vring->swtail] = NULL;
			} else {
				dma_unmap_page(dev, pa, d->dma.length,
					       DMA_TO_DEVICE);
			}
			vring->swtail = wil_vring_next_tail(vring);
		} else { /* rx */
			volatile struct vring_rx_desc *d =
					&vring->va[vring->swtail].rx;
			dma_addr_t pa = d->dma.addr_low |
					((u64)d->dma.addr_high << 32);
			struct sk_buff *skb = vring->ctx[vring->swhead];
			dma_unmap_single(dev, pa, d->dma.length,
					 DMA_FROM_DEVICE);
			kfree_skb(skb);
			wil_vring_advance_head(vring, 1);
		}
	}
	dma_free_coherent(dev, sz, (void *)vring->va, vring->pa);
	kfree(vring->ctx);
	vring->pa = 0;
	vring->va = NULL;
	vring->ctx = NULL;
}