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i40e: Add ndo_get_phys_port_id() callback support

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This patch adds a new API to get the port mac address from firmware.
It also adds support to the ndo_get_phys_port_id() callback to provide
port specific unique id to the netdev layer.
If the adapter has a valid per-port mac address then that
would be used for this purpose and is expected to be unique
on a per-port basis.

The information can be viewed by reading the phys_port_id
attribute in sysfs for each netdev or via IF netlink
interface.

Change-ID: I341fa6fff9c112f1f6d987189309e730e0b50e8b
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Neerav Parikh 2014-02-12 01:45:31 +00:00 committed by Jeff Kirsher
parent a84bc2a901
commit 1f224ad2f7
5 changed files with 49 additions and 2 deletions
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1
drivers/net/ethernet/intel/i40e/i40e.h
View File

@ -279,6 +279,7 @@ struct i40e_pf {
#ifdef CONFIG_I40E_VXLAN
#define I40E_FLAG_VXLAN_FILTER_SYNC (u64)(1 << 27)
#endif
#define I40E_FLAG_PORT_ID_VALID (u64)(1 << 28)
#define I40E_FLAG_DCB_CAPABLE (u64)(1 << 29)
/* tracks features that get auto disabled by errors */

25
drivers/net/ethernet/intel/i40e/i40e_common.c
View File

@ -654,6 +654,31 @@ i40e_status i40e_get_mac_addr(struct i40e_hw *hw, u8 *mac_addr)
return status;
}
/**
* i40e_get_port_mac_addr - get Port MAC address
* @hw: pointer to the HW structure
* @mac_addr: pointer to Port MAC address
*
* Reads the adapter's Port MAC address
**/
i40e_status i40e_get_port_mac_addr(struct i40e_hw *hw, u8 *mac_addr)
{
struct i40e_aqc_mac_address_read_data addrs;
i40e_status status;
u16 flags = 0;
status = i40e_aq_mac_address_read(hw, &flags, &addrs, NULL);
if (status)
return status;
if (flags & I40E_AQC_PORT_ADDR_VALID)
memcpy(mac_addr, &addrs.port_mac, sizeof(addrs.port_mac));
else
status = I40E_ERR_INVALID_MAC_ADDR;
return status;
}
/**
* i40e_pre_tx_queue_cfg - pre tx queue configure
* @hw: pointer to the HW structure

20
drivers/net/ethernet/intel/i40e/i40e_main.c
View File

@ -7018,6 +7018,22 @@ static void i40e_del_vxlan_port(struct net_device *netdev,
}
#endif
static int i40e_get_phys_port_id(struct net_device *netdev,
struct netdev_phys_port_id *ppid)
{
struct i40e_netdev_priv *np = netdev_priv(netdev);
struct i40e_pf *pf = np->vsi->back;
struct i40e_hw *hw = &pf->hw;
if (!(pf->flags & I40E_FLAG_PORT_ID_VALID))
return -EOPNOTSUPP;
ppid->id_len = min_t(int, sizeof(hw->mac.port_addr), sizeof(ppid->id));
memcpy(ppid->id, hw->mac.port_addr, ppid->id_len);
return 0;
}
#ifdef HAVE_FDB_OPS
#ifdef USE_CONST_DEV_UC_CHAR
static int i40e_ndo_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
@ -7137,6 +7153,7 @@ static const struct net_device_ops i40e_netdev_ops = {
.ndo_add_vxlan_port = i40e_add_vxlan_port,
.ndo_del_vxlan_port = i40e_del_vxlan_port,
#endif
.ndo_get_phys_port_id = i40e_get_phys_port_id,
#ifdef HAVE_FDB_OPS
.ndo_fdb_add = i40e_ndo_fdb_add,
#ifndef USE_DEFAULT_FDB_DEL_DUMP
@ -8686,6 +8703,9 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
dev_info(&pdev->dev, "MAC address: %pM\n", hw->mac.addr);
ether_addr_copy(hw->mac.perm_addr, hw->mac.addr);
i40e_get_port_mac_addr(hw, hw->mac.port_addr);
if (is_valid_ether_addr(hw->mac.port_addr))
pf->flags |= I40E_FLAG_PORT_ID_VALID;
pci_set_drvdata(pdev, pf);
pci_save_state(pdev);

4
drivers/net/ethernet/intel/i40e/i40e_prototype.h
View File

@ -230,8 +230,8 @@ i40e_status i40e_pf_reset(struct i40e_hw *hw);
void i40e_clear_hw(struct i40e_hw *hw);
void i40e_clear_pxe_mode(struct i40e_hw *hw);
bool i40e_get_link_status(struct i40e_hw *hw);
i40e_status i40e_get_mac_addr(struct i40e_hw *hw,
u8 *mac_addr);
i40e_status i40e_get_mac_addr(struct i40e_hw *hw, u8 *mac_addr);
i40e_status i40e_get_port_mac_addr(struct i40e_hw *hw, u8 *mac_addr);
i40e_status i40e_validate_mac_addr(u8 *mac_addr);
void i40e_pre_tx_queue_cfg(struct i40e_hw *hw, u32 queue, bool enable);
/* prototype for functions used for NVM access */

1
drivers/net/ethernet/intel/i40e/i40e_type.h
View File

@ -246,6 +246,7 @@ struct i40e_mac_info {
u8 addr[ETH_ALEN];
u8 perm_addr[ETH_ALEN];
u8 san_addr[ETH_ALEN];
u8 port_addr[ETH_ALEN];
u16 max_fcoeq;
};