[dpdk-dev] [PATCH 18/21] net/atlantic: VLAN filters and offloads

[Igor Russkikh <igor.russkikh@aquantia.com>]

From: Pavel Belous <pavel.belous@aquantia.com>

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
---
 drivers/net/atlantic/atl_ethdev.c | 156 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 154 insertions(+), 2 deletions(-)

diff --git a/drivers/net/atlantic/atl_ethdev.c b/drivers/net/atlantic/atl_ethdev.c
index c99d321c9..80b7ac88e 100644
--- a/drivers/net/atlantic/atl_ethdev.c
+++ b/drivers/net/atlantic/atl_ethdev.c
@@ -84,6 +84,16 @@ static void atl_dev_info_get(struct rte_eth_dev *dev,
 static const uint32_t *atl_dev_supported_ptypes_get(struct rte_eth_dev *dev);
 
 
+/* VLAN stuff */
+static int atl_vlan_filter_set(struct rte_eth_dev *dev,
+		uint16_t vlan_id, int on);
+
+static int atl_vlan_offload_set(struct rte_eth_dev *dev, int mask);
+
+static void atl_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue_id, int on);
+
+static int atl_vlan_tpid_set(struct rte_eth_dev *dev, enum rte_vlan_type vlan_type, uint16_t tpid);
+
 /* LEDs */
 static int atl_dev_led_on(struct rte_eth_dev *dev);
 static int atl_dev_led_off(struct rte_eth_dev *dev);
@@ -247,6 +257,11 @@ static const struct eth_dev_ops atl_eth_dev_ops = {
 	.xstats_get_names     = atl_dev_xstats_get_names,
 	.stats_reset	      = atl_dev_stats_reset,
 	.xstats_reset	      = atl_dev_xstats_reset,
+	/* VLAN */
+	.vlan_filter_set      = atl_vlan_filter_set,
+	.vlan_offload_set     = atl_vlan_offload_set,
+	.vlan_tpid_set        = atl_vlan_tpid_set,
+	.vlan_strip_queue_set = atl_vlan_strip_queue_set,
 
 	/* LEDs */
 	.dev_led_on           = atl_dev_led_on,
@@ -525,7 +540,6 @@ atl_dev_start(struct rte_eth_dev *dev)
 	uint32_t intr_vector = 0;
 	uint32_t *link_speeds;
 	uint32_t speed = 0;
-	int vlan_mask = 0;
 	int status;
 	int err;
 
@@ -582,7 +596,6 @@ atl_dev_start(struct rte_eth_dev *dev)
 		}
 	}
 
-
 	err = hw->aq_fw_ops->update_link_status(hw);
 
 	if (err) {
@@ -1241,6 +1254,145 @@ atl_set_default_mac_addr(struct rte_eth_dev *dev, struct ether_addr *addr)
 	return 0;
 }
 
+static int
+atl_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
+{
+	struct aq_hw_cfg_s *cfg = ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	int err = 0;
+	int i = 0;
+
+	PMD_INIT_FUNC_TRACE();
+
+	for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
+		if (cfg->vlan_filter[i] == vlan_id) {
+			if (!on) {
+				/* Disable VLAN filter. */
+				//hw_atl_rpf_vlan_flr_act_set(hw, 1U, i);
+				//hw_atl_rpf_vlan_id_flr_set(hw, vlan_filter[i], i);
+				hw_atl_rpf_vlan_flr_en_set(hw, 0U, i);
+
+				/* Clear VLAN filter entry */
+				cfg->vlan_filter[i] = 0;
+			}
+			break;
+		}
+	}
+
+	if (i == HW_ATL_B0_MAX_VLAN_IDS && !on)
+		goto exit; /* VLAN_ID was not found. So, nothing to delete. */
+
+	if (i != HW_ATL_B0_MAX_VLAN_IDS)
+		goto exit; /* VLAN_ID already exist, or already removed above. Nothing to do. */
+
+	/* Try to found free VLAN filter to add new VLAN_ID */
+	for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
+		if (cfg->vlan_filter[i] == 0)
+			break;
+	}
+
+	if (i == HW_ATL_B0_MAX_VLAN_IDS) {
+		/* We have no free VLAN filter to add new VLAN_ID*/
+		err = -ENOMEM;
+		goto exit;
+	}
+
+	cfg->vlan_filter[i] = vlan_id;
+	hw_atl_rpf_vlan_flr_act_set(hw, 1U, i);
+	hw_atl_rpf_vlan_id_flr_set(hw, vlan_id, i);
+	hw_atl_rpf_vlan_flr_en_set(hw, 1U, i);
+
+exit:
+	/* Enable VLAN promisc mode if vlan_filter empty  */
+        for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
+                if (cfg->vlan_filter[i] != 0)
+                        break;
+        }
+
+	hw_atl_rpf_vlan_prom_mode_en_set(hw, i == HW_ATL_B0_MAX_VLAN_IDS);
+
+	return err;
+}
+
+static int
+atl_enable_vlan_filter(struct rte_eth_dev *dev, int en)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	struct aq_hw_cfg_s *cfg = ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+	int i;
+
+	PMD_INIT_FUNC_TRACE();
+
+	for (i = 0; i < HW_ATL_B0_MAX_VLAN_IDS; i++) {
+		if (cfg->vlan_filter[i]) {
+			hw_atl_rpf_vlan_flr_en_set(hw, en, i);
+		}
+	}
+	return 0;
+}
+
+static int 
+atl_vlan_offload_set(struct rte_eth_dev *dev, int mask)
+{
+	struct aq_hw_cfg_s *cfg = ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	int ret = 0;
+	int i;
+
+	PMD_INIT_FUNC_TRACE();
+
+	ret = atl_enable_vlan_filter(dev, mask & ETH_VLAN_FILTER_MASK);
+
+	cfg->vlan_strip = !!(mask & ETH_VLAN_STRIP_MASK);
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		hw_atl_rpo_rx_desc_vlan_stripping_set(hw, cfg->vlan_strip, i);
+	}
+
+	if (mask & ETH_VLAN_EXTEND_MASK) {
+		ret = -ENOTSUP;
+	} 
+
+	return ret;
+}
+
+static int
+atl_vlan_tpid_set(struct rte_eth_dev *dev, enum rte_vlan_type vlan_type, uint16_t tpid)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+	int err = 0;
+
+	PMD_INIT_FUNC_TRACE();
+
+	switch (vlan_type) {
+	case ETH_VLAN_TYPE_INNER:
+		hw_atl_rpf_vlan_inner_etht_set(hw, tpid);
+		break;
+	case ETH_VLAN_TYPE_OUTER:
+		hw_atl_rpf_vlan_outer_etht_set(hw, tpid);
+		break;
+	default:
+		PMD_DRV_LOG(ERR, "Unsupported VLAN type");
+		err = -ENOTSUP;
+	}
+
+	return err;
+}
+
+static void
+atl_vlan_strip_queue_set(struct rte_eth_dev *dev, uint16_t queue_id, int on)
+{
+	struct aq_hw_s *hw = ATL_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	PMD_INIT_FUNC_TRACE();
+
+	if (queue_id > dev->data->nb_rx_queues) {
+		PMD_DRV_LOG(ERR, "Invalid queue id");
+		return;
+	}
+
+	hw_atl_rpo_rx_desc_vlan_stripping_set(hw, on, queue_id);
+}
 
 static int
 atl_dev_set_mc_addr_list(struct rte_eth_dev *dev,
-- 
2.13.3.windows.1