From c52ff36686a408fd5196452380e359120c2d1ed5 Mon Sep 17 00:00:00 2001 From: Wei Zhao Date: Fri, 24 Jul 2020 15:01:37 +0800 Subject: [PATCH] net/i40e: enable QinQ stripping This patch enable i40e outer vlan strip on and off in QinQ mode with mask bit of DEV_RX_OFFLOAD_QINQ_STRIP, users can use "vlan set qinq_strip on 0" to enable or "vlan set qinq_strip off 0" to disable i40e outer vlan strip when try with testpmd app. Fixes: 4861cde46116 ("i40e: new poll mode driver") Cc: stable@dpdk.org Signed-off-by: Wei Zhao Reviewed-by: Qiming Yang --- drivers/net/i40e/i40e_ethdev.c | 45 +++++++++++++++++++++++++++++++++- 1 file changed, 44 insertions(+), 1 deletion(-) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 6bcce3386a..88f4fe3536 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -48,6 +48,8 @@ #define ETH_I40E_VF_MSG_CFG "vf_msg_cfg" #define I40E_CLEAR_PXE_WAIT_MS 200 +#define I40E_VSI_TSR_QINQ_STRIP 0x4010 +#define I40E_VSI_TSR(_i) (0x00050800 + ((_i) * 4)) /* Maximun number of capability elements */ #define I40E_MAX_CAP_ELE_NUM 128 @@ -3979,6 +3981,39 @@ i40e_vlan_tpid_set(struct rte_eth_dev *dev, return ret; } +/* Configure outer vlan stripping on or off in QinQ mode */ +static int +i40e_vsi_config_outer_vlan_stripping(struct i40e_vsi *vsi, bool on) +{ + struct i40e_hw *hw = I40E_VSI_TO_HW(vsi); + int ret = I40E_SUCCESS; + uint32_t reg; + + if (vsi->vsi_id >= I40E_MAX_NUM_VSIS) { + PMD_DRV_LOG(ERR, "VSI ID exceeds the maximum"); + return -EINVAL; + } + + /* Configure for outer VLAN RX stripping */ + reg = I40E_READ_REG(hw, I40E_VSI_TSR(vsi->vsi_id)); + + if (on) + reg |= I40E_VSI_TSR_QINQ_STRIP; + else + reg &= ~I40E_VSI_TSR_QINQ_STRIP; + + ret = i40e_aq_debug_write_register(hw, + I40E_VSI_TSR(vsi->vsi_id), + reg, NULL); + if (ret < 0) { + PMD_DRV_LOG(ERR, "Failed to update VSI_TSR[%d]", + vsi->vsi_id); + return I40E_ERR_CONFIG; + } + + return ret; +} + static int i40e_vlan_offload_set(struct rte_eth_dev *dev, int mask) { @@ -4015,6 +4050,14 @@ i40e_vlan_offload_set(struct rte_eth_dev *dev, int mask) i40e_vsi_config_double_vlan(vsi, FALSE); } + if (mask & ETH_QINQ_STRIP_MASK) { + /* Enable or disable outer VLAN stripping */ + if (rxmode->offloads & DEV_RX_OFFLOAD_QINQ_STRIP) + i40e_vsi_config_outer_vlan_stripping(vsi, TRUE); + else + i40e_vsi_config_outer_vlan_stripping(vsi, FALSE); + } + return 0; } @@ -6193,6 +6236,7 @@ i40e_dev_init_vlan(struct rte_eth_dev *dev) /* Apply vlan offload setting */ mask = ETH_VLAN_STRIP_MASK | + ETH_QINQ_STRIP_MASK | ETH_VLAN_FILTER_MASK | ETH_VLAN_EXTEND_MASK; ret = i40e_vlan_offload_set(dev, mask); @@ -10874,7 +10918,6 @@ i40e_configure_registers(struct i40e_hw *hw) } } -#define I40E_VSI_TSR(_i) (0x00050800 + ((_i) * 4)) #define I40E_VSI_TSR_QINQ_CONFIG 0xc030 #define I40E_VSI_L2TAGSTXVALID(_i) (0x00042800 + ((_i) * 4)) #define I40E_VSI_L2TAGSTXVALID_QINQ 0xab -- 2.20.1