diff options
| author | Yisen.Zhuang\(Zhuangyuzeng\) <Yisen.Zhuang@huawei.com> | 2016-04-23 17:05:07 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-26 01:09:17 -0400 |
| commit | 406adee9a9fc38c11671f26180e694976f45237c (patch) | |
| tree | 3457f7e855766f7701affb6c74efbe7fca0608e5 /drivers/net/ethernet/hisilicon/hns/hns_enet.c | |
| parent | a542458cb7211a5e092c6a3cd6150404a5b1aa46 (diff) | |
net: hns: add attribute port-idx-in-ae in enet node.
This patch parse port-idx-in-ae in enet node. In NIC mode of DSAF, all 6
PHYs of service DSAF are taken as ethernet ports to the CPU. The
port-idx-in-ae can be 0 to 5. Here is the diagram:
+-----+---------------+
| CPU |
+-+-+-+---+-+-+-+-+-+-+
| | | | | | | |
debug debug service
port port port
(0) (0) (0-5)
In Switch mode of DSAF, all 6 PHYs of service DSAF are taken as physical
ports connect to a LAN Switch while the CPU side assume itself have one
single NIC connect to this switch. In this case, the port-idx-in-ae will
be 0 only.
+-----+-----+------+------+
| CPU |
+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | service| port(0)
debug debug +------------+
port port | switch |
(0) (0) +-+-+-+-+-+-++
| | | | | |
external port
when port-idx-in-ae is not exists, old attribute port-id will be used
(only for compatible purpose, not recommended to use port-id in new code).
Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Signed-off-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns/hns_enet.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_enet.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c index 687204b780b0..e47aff250b15 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c @@ -1873,6 +1873,7 @@ static int hns_nic_dev_probe(struct platform_device *pdev) struct net_device *ndev; struct hns_nic_priv *priv; struct device_node *node = dev->of_node; + u32 port_id; int ret; ndev = alloc_etherdev_mq(sizeof(struct hns_nic_priv), NIC_MAX_Q_PER_VF); @@ -1896,10 +1897,18 @@ static int hns_nic_dev_probe(struct platform_device *pdev) dev_err(dev, "not find ae-handle\n"); goto out_read_prop_fail; } - - ret = of_property_read_u32(node, "port-id", &priv->port_id); - if (ret) - goto out_read_prop_fail; + /* try to find port-idx-in-ae first */ + ret = of_property_read_u32(node, "port-idx-in-ae", &port_id); + if (ret) { + /* only for old code compatible */ + ret = of_property_read_u32(node, "port-id", &port_id); + if (ret) + goto out_read_prop_fail; + /* for old dts, we need to caculate the port offset */ + port_id = port_id < HNS_SRV_OFFSET ? port_id + HNS_DEBUG_OFFSET + : port_id - HNS_SRV_OFFSET; + } + priv->port_id = port_id; hns_init_mac_addr(ndev); |