drivers/net/ethernet/wangxun/libwx/wx_vf_common.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/wangxun/libwx/wx_vf_common.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/wangxun/libwx/wx_vf_common.c
Extension
.c
Size
9670 bytes
Lines
422
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: exported/initcall integration point
Status
integration 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

if (err) {
			wx_err(wx, "request_irq failed for MSIX interrupt %s Error: %d\n",
			       q_vector->name, err);
			goto free_queue_irqs;
		}
	}

	err = request_irq(wx->msix_entry->vector, wx_msix_misc_vf,
			  0, netdev->name, wx);
	if (err) {
		wx_err(wx, "request_irq for msix_other failed: %d\n", err);
		goto free_queue_irqs;
	}

	return 0;

free_queue_irqs:
	while (vector) {
		vector--;
		free_irq(wx->msix_q_entries[vector].vector,
			 wx->q_vector[vector]);
	}
	wx_reset_interrupt_capability(wx);
	return err;
}
EXPORT_SYMBOL(wx_request_msix_irqs_vf);

void wx_negotiate_api_vf(struct wx *wx)
{
	int api[] = {
		     wx_mbox_api_13,
		     wx_mbox_api_null};
	int err = 0, idx = 0;

	spin_lock_bh(&wx->mbx.mbx_lock);
	while (api[idx] != wx_mbox_api_null) {
		err = wx_negotiate_api_version(wx, api[idx]);
		if (!err)
			break;
		idx++;
	}
	spin_unlock_bh(&wx->mbx.mbx_lock);
}
EXPORT_SYMBOL(wx_negotiate_api_vf);

void wx_reset_vf(struct wx *wx)
{
	struct net_device *netdev = wx->netdev;
	int ret = 0;

	ret = wx_reset_hw_vf(wx);
	if (!ret)
		wx_init_hw_vf(wx);
	wx_negotiate_api_vf(wx);
	if (is_valid_ether_addr(wx->mac.addr)) {
		eth_hw_addr_set(netdev, wx->mac.addr);
		ether_addr_copy(netdev->perm_addr, wx->mac.addr);
	}
}
EXPORT_SYMBOL(wx_reset_vf);

void wx_set_rx_mode_vf(struct net_device *netdev)
{
	struct wx *wx = netdev_priv(netdev);
	unsigned int flags = netdev->flags;
	int xcast_mode;

	xcast_mode = (flags & IFF_ALLMULTI) ? WXVF_XCAST_MODE_ALLMULTI :
		     (flags & (IFF_BROADCAST | IFF_MULTICAST)) ?
		     WXVF_XCAST_MODE_MULTI : WXVF_XCAST_MODE_NONE;
	/* request the most inclusive mode we need */
	if (flags & IFF_PROMISC)
		xcast_mode = WXVF_XCAST_MODE_PROMISC;
	else if (flags & IFF_ALLMULTI)
		xcast_mode = WXVF_XCAST_MODE_ALLMULTI;
	else if (flags & (IFF_BROADCAST | IFF_MULTICAST))
		xcast_mode = WXVF_XCAST_MODE_MULTI;
	else
		xcast_mode = WXVF_XCAST_MODE_NONE;

	spin_lock_bh(&wx->mbx.mbx_lock);
	wx_update_xcast_mode_vf(wx, xcast_mode);
	wx_update_mc_addr_list_vf(wx, netdev);
	wx_write_uc_addr_list_vf(netdev);
	spin_unlock_bh(&wx->mbx.mbx_lock);
}
EXPORT_SYMBOL(wx_set_rx_mode_vf);

/**
 * wx_configure_rx_vf - Configure Receive Unit after Reset

Annotation

Implementation Notes