drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
Extension
.c
Size
31404 bytes
Lines
1256
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source 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 (ret) {
			dev_err(mac_cb->dev,
				"adjust_link failed, %s mac%d ret = %#x!\n",
				mac_cb->dsaf_dev->ae_dev.name,
				mac_cb->mac_id, ret);
			return;
		}
	}
}

/**
 *hns_mac_get_inner_port_num - get mac table inner port number
 *@mac_cb: mac device
 *@vmid: vm id
 *@port_num:port number
 *
 */
int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb, u8 vmid, u8 *port_num)
{
	int q_num_per_vf, vf_num_per_port;
	int vm_queue_id;
	u8 tmp_port;

	if (mac_cb->dsaf_dev->dsaf_mode <= DSAF_MODE_ENABLE) {
		if (mac_cb->mac_id != DSAF_MAX_PORT_NUM) {
			dev_err(mac_cb->dev,
				"input invalid, %s mac%d vmid%d !\n",
				mac_cb->dsaf_dev->ae_dev.name,
				mac_cb->mac_id, vmid);
			return -EINVAL;
		}
	} else if (mac_cb->dsaf_dev->dsaf_mode < DSAF_MODE_MAX) {
		if (mac_cb->mac_id >= DSAF_MAX_PORT_NUM) {
			dev_err(mac_cb->dev,
				"input invalid, %s mac%d vmid%d!\n",
				mac_cb->dsaf_dev->ae_dev.name,
				mac_cb->mac_id, vmid);
			return -EINVAL;
		}
	} else {
		dev_err(mac_cb->dev, "dsaf mode invalid, %s mac%d!\n",
			mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id);
		return -EINVAL;
	}

	if (vmid >= mac_cb->dsaf_dev->rcb_common[0]->max_vfn) {
		dev_err(mac_cb->dev, "input invalid, %s mac%d vmid%d !\n",
			mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id, vmid);
		return -EINVAL;
	}

	q_num_per_vf = mac_cb->dsaf_dev->rcb_common[0]->max_q_per_vf;
	vf_num_per_port = mac_cb->dsaf_dev->rcb_common[0]->max_vfn;

	vm_queue_id = vmid * q_num_per_vf +
			vf_num_per_port * q_num_per_vf * mac_cb->mac_id;

	switch (mac_cb->dsaf_dev->dsaf_mode) {
	case DSAF_MODE_ENABLE_FIX:
		tmp_port = 0;
		break;
	case DSAF_MODE_DISABLE_FIX:
		tmp_port = 0;
		break;
	case DSAF_MODE_ENABLE_0VM:
	case DSAF_MODE_ENABLE_8VM:
	case DSAF_MODE_ENABLE_16VM:
	case DSAF_MODE_ENABLE_32VM:
	case DSAF_MODE_ENABLE_128VM:
	case DSAF_MODE_DISABLE_2PORT_8VM:
	case DSAF_MODE_DISABLE_2PORT_16VM:
	case DSAF_MODE_DISABLE_2PORT_64VM:
	case DSAF_MODE_DISABLE_6PORT_0VM:
	case DSAF_MODE_DISABLE_6PORT_2VM:
	case DSAF_MODE_DISABLE_6PORT_4VM:
	case DSAF_MODE_DISABLE_6PORT_16VM:
		tmp_port = vm_queue_id;
		break;
	default:
		dev_err(mac_cb->dev, "dsaf mode invalid, %s mac%d!\n",
			mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id);
		return -EINVAL;
	}
	tmp_port += DSAF_BASE_INNER_PORT_NUM;

	*port_num = tmp_port;

	return 0;
}

Annotation

Implementation Notes