drivers/net/wireless/ath/wil6210/netdev.c

Source file repositories/reference/linux-study-clean/drivers/net/wireless/ath/wil6210/netdev.c

File Facts

System
Linux kernel
Corpus path
drivers/net/wireless/ath/wil6210/netdev.c
Extension
.c
Size
13372 bytes
Lines
569
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

static const struct net_device_ops wil_netdev_ops = {
	.ndo_open		= wil_open,
	.ndo_stop		= wil_stop,
	.ndo_start_xmit		= wil_start_xmit,
	.ndo_set_mac_address	= eth_mac_addr,
	.ndo_validate_addr	= eth_validate_addr,
};

static int wil6210_netdev_poll_rx(struct napi_struct *napi, int budget)
{
	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
						napi_rx);
	int quota = budget;
	int done;

	wil_rx_handle(wil, &quota);
	done = budget - quota;

	if (done < budget) {
		napi_complete_done(napi, done);
		wil6210_unmask_irq_rx(wil);
		wil_dbg_txrx(wil, "NAPI RX complete\n");
	}

	wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done);

	return done;
}

static int wil6210_netdev_poll_rx_edma(struct napi_struct *napi, int budget)
{
	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
						napi_rx);
	int quota = budget;
	int done;

	wil_rx_handle_edma(wil, &quota);
	done = budget - quota;

	if (done < budget) {
		napi_complete_done(napi, done);
		wil6210_unmask_irq_rx_edma(wil);
		wil_dbg_txrx(wil, "NAPI RX complete\n");
	}

	wil_dbg_txrx(wil, "NAPI RX poll(%d) done %d\n", budget, done);

	return done;
}

static int wil6210_netdev_poll_tx(struct napi_struct *napi, int budget)
{
	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,
						napi_tx);
	int tx_done = 0;
	uint i;

	/* always process ALL Tx complete, regardless budget - it is fast */
	for (i = 0; i < WIL6210_MAX_TX_RINGS; i++) {
		struct wil_ring *ring = &wil->ring_tx[i];
		struct wil_ring_tx_data *txdata = &wil->ring_tx_data[i];
		struct wil6210_vif *vif;

		if (!ring->va || !txdata->enabled ||
		    txdata->mid >= GET_MAX_VIFS(wil))
			continue;

		vif = wil->vifs[txdata->mid];
		if (unlikely(!vif)) {
			wil_dbg_txrx(wil, "Invalid MID %d\n", txdata->mid);
			continue;
		}

		tx_done += wil_tx_complete(vif, i);
	}

	if (tx_done < budget) {
		napi_complete(napi);
		wil6210_unmask_irq_tx(wil);
		wil_dbg_txrx(wil, "NAPI TX complete\n");
	}

	wil_dbg_txrx(wil, "NAPI TX poll(%d) done %d\n", budget, tx_done);

	return min(tx_done, budget);
}

static int wil6210_netdev_poll_tx_edma(struct napi_struct *napi, int budget)
{
	struct wil6210_priv *wil = container_of(napi, struct wil6210_priv,

Annotation

Implementation Notes