net/qede: enable and disable VLAN filtering

The device doesn't explicitly support enable/disable
of VLAN filtering. However, VLAN filtering takes effect
when a matching VLAN is configured. So in order to
support enable/disable of VLAN filtering, VLAN 0 is
added/removed respectively. A check is added to ensure that
the user removes all the configured VLANs before disabling
VLAN filtering.

Also VLAN offloads shall be enabled by default and
vlan_tci_outer is to set to 0 for Q-in-Q packets.

Fixes: 2ea6f76 ("qede: add core driver")

Signed-off-by: Harish Patil <harish.patil@qlogic.com>

diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index b97e3be..4afc905 100644 (file)
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -372,16 +372,40 @@ static void qede_vlan_offload_set(struct rte_eth_dev *eth_dev, int mask)
 {
        struct qede_dev *qdev = QEDE_INIT_QDEV(eth_dev);
        struct ecore_dev *edev = QEDE_INIT_EDEV(qdev);
+       struct rte_eth_rxmode *rxmode = &eth_dev->data->dev_conf.rxmode;
 
        if (mask & ETH_VLAN_STRIP_MASK) {
-               if (eth_dev->data->dev_conf.rxmode.hw_vlan_strip)
+               if (rxmode->hw_vlan_strip)
                        (void)qede_vlan_stripping(eth_dev, 1);
                else
                        (void)qede_vlan_stripping(eth_dev, 0);
        }
 
-       DP_INFO(edev, "vlan offload mask %d vlan-strip %d\n",
-               mask, eth_dev->data->dev_conf.rxmode.hw_vlan_strip);
+       if (mask & ETH_VLAN_FILTER_MASK) {
+               /* VLAN filtering kicks in when a VLAN is added */
+               if (rxmode->hw_vlan_filter) {
+                       qede_vlan_filter_set(eth_dev, 0, 1);
+               } else {
+                       if (qdev->configured_vlans > 1) { /* Excluding VLAN0 */
+                               DP_NOTICE(edev, false,
+                                 " Please remove existing VLAN filters"
+                                 " before disabling VLAN filtering\n");
+                               /* Signal app that VLAN filtering is still
+                                * enabled
+                                */
+                               rxmode->hw_vlan_filter = true;
+                       } else {
+                               qede_vlan_filter_set(eth_dev, 0, 0);
+                       }
+               }
+       }
+
+       if (mask & ETH_VLAN_EXTEND_MASK)
+               DP_INFO(edev, "No offloads are supported with VLAN Q-in-Q"
+                       " and classification is based on outer tag only\n");
+
+       DP_INFO(edev, "vlan offload mask %d vlan-strip %d vlan-filter %d\n",
+               mask, rxmode->hw_vlan_strip, rxmode->hw_vlan_filter);
 }
 
 static int qede_set_ucast_rx_vlan(struct qede_dev *qdev,
@@ -584,6 +608,11 @@ static int qede_dev_configure(struct rte_eth_dev *eth_dev)
        if (IS_PF(edev))
                qede_mac_addr_set(eth_dev, &qdev->primary_mac);
 
+       /* Enable VLAN offloads by default */
+       qede_vlan_offload_set(eth_dev, ETH_VLAN_STRIP_MASK  |
+                                      ETH_VLAN_FILTER_MASK |
+                                      ETH_VLAN_EXTEND_MASK);
+
        qdev->state = QEDE_DEV_CONFIG;
 
        return 0;

diff --git a/drivers/net/qede/qede_ethdev.h b/drivers/net/qede/qede_ethdev.h
index ed2d41c..526d3be 100644 (file)
--- a/drivers/net/qede/qede_ethdev.h
+++ b/drivers/net/qede/qede_ethdev.h
@@ -152,6 +152,10 @@ struct qede_dev {
        char drv_ver[QED_DRV_VER_STR_SIZE];
 };
 
+/* Static functions */
+static int qede_vlan_filter_set(struct rte_eth_dev *eth_dev,
+                               uint16_t vlan_id, int on);
+
 int qed_fill_eth_dev_info(struct ecore_dev *edev,
                                 struct qed_dev_eth_info *info);
 int qede_dev_set_link_state(struct rte_eth_dev *eth_dev, bool link_up);

diff --git a/drivers/net/qede/qede_rxtx.c b/drivers/net/qede/qede_rxtx.c
index 6973d1c..9df0d13 100644 (file)
--- a/drivers/net/qede/qede_rxtx.c
+++ b/drivers/net/qede/qede_rxtx.c
@@ -945,6 +945,7 @@ qede_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                         */
                        rx_mb->vlan_tci = rte_le_to_cpu_16(fp_cqe->vlan_tag);
                        rx_mb->ol_flags |= PKT_RX_QINQ_PKT;
+                       rx_mb->vlan_tci_outer = 0;
                }
 
                rx_pkts[rx_pkt] = rx_mb;