From: Beilei Xing Date: Thu, 16 Jun 2016 13:36:28 +0000 (+0800) Subject: net/e1000: configure outer VLAN TPID field X-Git-Tag: spdx-start~6417 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=83a8805bbc9ae50d7a42a41ea93ae24105839cb0;p=dpdk.git net/e1000: configure outer VLAN TPID field 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 Acked-by: Helin Zhang --- diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c index b98c827919..b9b9eafa2b 100644 --- a/drivers/net/e1000/igb_ethdev.c +++ b/drivers/net/e1000/igb_ethdev.c @@ -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; + + qinq = E1000_READ_REG(hw, E1000_CTRL_EXT); + qinq &= E1000_CTRL_EXT_EXT_VLAN; - switch (vlan_type) { - case ETH_VLAN_TYPE_INNER: - reg |= (tpid << 16); + /* 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