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net/e1000: configure outer VLAN TPID field

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This patch enables configuring the outer TPID for double VLAN.
Note that all other TPID values, for single VLANs or inner VLAN in the
QinQ case, are read only.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
This commit is contained in:
Beilei Xing 2016-06-16 21:36:28 +08:00 committed by Bruce Richardson
parent 5833f445f0
commit 83a8805bbc
1 changed files with 22 additions and 11 deletions
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33
drivers/net/e1000/igb_ethdev.c
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@ -92,6 +92,13 @@
#define E1000_VTIVAR_MISC_MAILBOX 0
#define E1000_VTIVAR_MISC_INTR_MASK 0x3
/* External VLAN Enable bit mask */
#define E1000_CTRL_EXT_EXT_VLAN (1 << 26)
/* External VLAN Ether Type bit mask and shift */
#define E1000_VET_VET_EXT 0xFFFF0000
#define E1000_VET_VET_EXT_SHIFT 16
static int eth_igb_configure(struct rte_eth_dev *dev);
static int eth_igb_start(struct rte_eth_dev *dev);
static void eth_igb_stop(struct rte_eth_dev *dev);
@ -2334,21 +2341,25 @@ eth_igb_vlan_tpid_set(struct rte_eth_dev *dev,
{
struct e1000_hw *hw =
E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
uint32_t reg = ETHER_TYPE_VLAN;
int ret = 0;
uint32_t reg, qinq;
switch (vlan_type) {
case ETH_VLAN_TYPE_INNER:
reg |= (tpid << 16);
qinq = E1000_READ_REG(hw, E1000_CTRL_EXT);
qinq &= E1000_CTRL_EXT_EXT_VLAN;
/* only outer TPID of double VLAN can be configured*/
if (qinq && vlan_type == ETH_VLAN_TYPE_OUTER) {
reg = E1000_READ_REG(hw, E1000_VET);
reg = (reg & (~E1000_VET_VET_EXT)) |
((uint32_t)tpid << E1000_VET_VET_EXT_SHIFT);
E1000_WRITE_REG(hw, E1000_VET, reg);
break;
default:
ret = -EINVAL;
PMD_DRV_LOG(ERR, "Unsupported vlan type %d\n", vlan_type);
break;
return 0;
}
return ret;
/* all other TPID values are read-only*/
PMD_DRV_LOG(ERR, "Not supported");
return -ENOTSUP;
}
static void