[dpdk-dev] [PATCH v2] e1000: enable promiscuous and allmulticast support for VF

[Yury Kylulin <yury.kylulin@intel.com>]

Enable promiscuous and allmulticast mode control from the VF using
rte_eth_promiscuous_enable()/rte_eth_promiscuous_disable() and
rte_eth_allmulticast_enable()/rte_eth_allmulticast_disable().

For promiscuous mode host/PF igb driver should be built with
IGB_ENABLE_VF_PROMISC.

For allmulticast mode "allmulti" flag should be set for appropriate PF
ifconfig eth0 allmulti

Signed-off-by: Yury Kylulin <yury.kylulin@intel.com>
---
v2
* Added promiscuous mode control
* Switching logic is the same like in igb PF driver

 drivers/net/e1000/igb_ethdev.c |   49 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index d1bbcda..677f9a2 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -152,6 +152,10 @@ static int igbvf_dev_configure(struct rte_eth_dev *dev);
 static int igbvf_dev_start(struct rte_eth_dev *dev);
 static void igbvf_dev_stop(struct rte_eth_dev *dev);
 static void igbvf_dev_close(struct rte_eth_dev *dev);
+static void igbvf_promiscuous_enable(struct rte_eth_dev *dev);
+static void igbvf_promiscuous_disable(struct rte_eth_dev *dev);
+static void igbvf_allmulticast_enable(struct rte_eth_dev *dev);
+static void igbvf_allmulticast_disable(struct rte_eth_dev *dev);
 static int eth_igbvf_link_update(struct e1000_hw *hw);
 static void eth_igbvf_stats_get(struct rte_eth_dev *dev,
 				struct rte_eth_stats *rte_stats);
@@ -369,6 +373,10 @@ static const struct eth_dev_ops igbvf_eth_dev_ops = {
 	.dev_start            = igbvf_dev_start,
 	.dev_stop             = igbvf_dev_stop,
 	.dev_close            = igbvf_dev_close,
+	.promiscuous_enable   = igbvf_promiscuous_enable,
+	.promiscuous_disable  = igbvf_promiscuous_disable,
+	.allmulticast_enable  = igbvf_allmulticast_enable,
+	.allmulticast_disable = igbvf_allmulticast_disable,
 	.link_update          = eth_igb_link_update,
 	.stats_get            = eth_igbvf_stats_get,
 	.xstats_get           = eth_igbvf_xstats_get,
@@ -2829,6 +2837,47 @@ igbvf_dev_close(struct rte_eth_dev *dev)
 	igb_dev_free_queues(dev);
 }
 
+static void
+igbvf_promiscuous_enable(struct rte_eth_dev *dev)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	/* Set both unicast and multicast promisc */
+	e1000_promisc_set_vf(hw, e1000_promisc_enabled);
+}
+
+static void
+igbvf_promiscuous_disable(struct rte_eth_dev *dev)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	/* If in allmulticast mode leave multicast promisc */
+	if (dev->data->all_multicast == 1)
+		e1000_promisc_set_vf(hw, e1000_promisc_multicast);
+	else
+		e1000_promisc_set_vf(hw, e1000_promisc_disabled);
+}
+
+static void
+igbvf_allmulticast_enable(struct rte_eth_dev *dev)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	/* In promiscuous mode multicast promisc already set */
+	if (dev->data->promiscuous == 0)
+		e1000_promisc_set_vf(hw, e1000_promisc_multicast);
+}
+
+static void
+igbvf_allmulticast_disable(struct rte_eth_dev *dev)
+{
+	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+
+	/* In promiscuous mode leave multicast promisc enabled */
+	if (dev->data->promiscuous == 0)
+		e1000_promisc_set_vf(hw, e1000_promisc_disabled);
+}
+
 static int igbvf_set_vfta(struct e1000_hw *hw, uint16_t vid, bool on)
 {
 	struct e1000_mbx_info *mbx = &hw->mbx;
-- 
1.7.9.5