dpdk/0201-net-hns3-support-VLAN-filter-state-modify-for-VF.patch

From 7e819e49263e3195e3b04f9a6c32113a6835d76c Mon Sep 17 00:00:00 2001
From: Chengchang Tang <tangchengchang@huawei.com>
Date: Sat, 10 Jul 2021 09:58:33 +0800
Subject: [PATCH 15/26] net/hns3: support VLAN filter state modify for VF

Since the HW limitation for VF, the VLAN filter is default enabled, and
is not allowed to be closed. Now, the limitation has been removed in
Kunpeng930 network engine, so this patch add support for VF to modify the
VLAN filter state.

A capabilities bit is added to differentiate between different platforms
and achieve compatibility. When the VF runs on an incomatible platform or
an incompatible kernel-mode driver version is used, the VF behavior is
the same as that before.

Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
 drivers/net/hns3/hns3_cmd.h       |  9 ++++++++
 drivers/net/hns3/hns3_ethdev.h    |  4 ++++
 drivers/net/hns3/hns3_ethdev_vf.c | 48 ++++++++++++++++++++++++++++++++++++---
 drivers/net/hns3/hns3_mbx.h       |  1 +
 4 files changed, 59 insertions(+), 3 deletions(-)

diff --git a/drivers/net/hns3/hns3_cmd.h b/drivers/net/hns3/hns3_cmd.h
index cd58303..780ab0f 100644
--- a/drivers/net/hns3/hns3_cmd.h
+++ b/drivers/net/hns3/hns3_cmd.h
@@ -325,6 +325,15 @@ enum HNS3_CAPS_BITS {
 	HNS3_CAPS_TM_B = 17,
 };
 
+/* Capabilities of VF dependent on the PF */
+enum HNS3VF_CAPS_BITS {
+	/*
+	 * The following capability index definitions must be the same as those
+	 * in kernel side PF.
+	 */
+	HNS3VF_CAPS_VLAN_FLT_MOD_B = 0,
+};
+
 enum HNS3_API_CAP_BITS {
 	HNS3_API_CAP_FLEX_RSS_TBL_B,
 };
diff --git a/drivers/net/hns3/hns3_ethdev.h b/drivers/net/hns3/hns3_ethdev.h
index 0ecf812..9a59483 100644
--- a/drivers/net/hns3/hns3_ethdev.h
+++ b/drivers/net/hns3/hns3_ethdev.h
@@ -870,6 +870,7 @@ enum {
 	HNS3_DEV_SUPPORT_OUTER_UDP_CKSUM_B,
 	HNS3_DEV_SUPPORT_RAS_IMP_B,
 	HNS3_DEV_SUPPORT_TM_B,
+	HNS3_DEV_SUPPORT_VF_VLAN_FLT_MOD_B,
 };
 
 #define hns3_dev_dcb_supported(hw) \
@@ -909,6 +910,9 @@ enum {
 #define hns3_dev_tm_supported(hw) \
 	hns3_get_bit((hw)->capability, HNS3_DEV_SUPPORT_TM_B)
 
+#define hns3_dev_vf_vlan_flt_supported(hw) \
+	hns3_get_bit((hw)->capability, HNS3_DEV_SUPPORT_VF_VLAN_FLT_MOD_B)
+
 #define HNS3_DEV_PRIVATE_TO_HW(adapter) \
 	(&((struct hns3_adapter *)adapter)->hw)
 #define HNS3_DEV_PRIVATE_TO_PF(adapter) \
diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
index bb351be..b62b059 100644
--- a/drivers/net/hns3/hns3_ethdev_vf.c
+++ b/drivers/net/hns3/hns3_ethdev_vf.c
@@ -1408,6 +1408,14 @@ hns3vf_get_queue_depth(struct hns3_hw *hw)
 	return 0;
 }
 
+static void
+hns3vf_update_caps(struct hns3_hw *hw, uint32_t caps)
+{
+	if (hns3_get_bit(caps, HNS3VF_CAPS_VLAN_FLT_MOD_B))
+		hns3_set_bit(hw->capability,
+				HNS3_DEV_SUPPORT_VF_VLAN_FLT_MOD_B, 1);
+}
+
 static int
 hns3vf_get_num_tc(struct hns3_hw *hw)
 {
@@ -1440,7 +1448,7 @@ hns3vf_get_basic_info(struct hns3_hw *hw)
 	hw->hw_tc_map = basic_info->hw_tc_map;
 	hw->num_tc = hns3vf_get_num_tc(hw);
 	hw->pf_vf_if_version = basic_info->pf_vf_if_version;
-
+	hns3vf_update_caps(hw, basic_info->caps);
 
 	return 0;
 }
@@ -1611,6 +1619,26 @@ hns3vf_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vlan_id, int on)
 }
 
 static int
+hns3vf_en_vlan_filter(struct hns3_hw *hw, bool enable)
+{
+	uint8_t msg_data;
+	int ret;
+
+	if (!hns3_dev_vf_vlan_flt_supported(hw))
+		return 0;
+
+	msg_data = enable ? 1 : 0;
+	ret = hns3_send_mbx_msg(hw, HNS3_MBX_SET_VLAN,
+			HNS3_MBX_ENABLE_VLAN_FILTER, &msg_data,
+			sizeof(msg_data), true, NULL, 0);
+	if (ret)
+		hns3_err(hw, "%s vlan filter failed, ret = %d.",
+				enable ? "enable" : "disable", ret);
+
+	return ret;
+}
+
+static int
 hns3vf_en_hw_strip_rxvtag(struct hns3_hw *hw, bool enable)
 {
 	uint8_t msg_data;
@@ -1641,6 +1669,19 @@ hns3vf_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 	}
 
 	tmp_mask = (unsigned int)mask;
+
+	if (tmp_mask & ETH_VLAN_FILTER_MASK) {
+		rte_spinlock_lock(&hw->lock);
+		/* Enable or disable VLAN filter */
+		if (dev_conf->rxmode.offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
+			ret = hns3vf_en_vlan_filter(hw, true);
+		else
+			ret = hns3vf_en_vlan_filter(hw, false);
+		rte_spinlock_unlock(&hw->lock);
+		if (ret)
+			return ret;
+	}
+
 	/* Vlan stripping setting */
 	if (tmp_mask & ETH_VLAN_STRIP_MASK) {
 		rte_spinlock_lock(&hw->lock);
@@ -1738,9 +1779,10 @@ hns3vf_dev_configure_vlan(struct rte_eth_dev *dev)
 	}
 
 	/* Apply vlan offload setting */
-	ret = hns3vf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK);
+	ret = hns3vf_vlan_offload_set(dev, ETH_VLAN_STRIP_MASK |
+					ETH_VLAN_FILTER_MASK);
 	if (ret)
-		hns3_err(hw, "dev config vlan offload failed, ret =%d", ret);
+		hns3_err(hw, "dev config vlan offload failed, ret = %d.", ret);
 
 	return ret;
 }
diff --git a/drivers/net/hns3/hns3_mbx.h b/drivers/net/hns3/hns3_mbx.h
index f6482cc..2154c04 100644
--- a/drivers/net/hns3/hns3_mbx.h
+++ b/drivers/net/hns3/hns3_mbx.h
@@ -71,6 +71,7 @@ enum hns3_mbx_vlan_cfg_subcode {
 	HNS3_MBX_VLAN_TX_OFF_CFG,               /* set tx side vlan offload */
 	HNS3_MBX_VLAN_RX_OFF_CFG,               /* set rx side vlan offload */
 	HNS3_MBX_GET_PORT_BASE_VLAN_STATE = 4,  /* get port based vlan state */
+	HNS3_MBX_ENABLE_VLAN_FILTER,            /* set vlan filter state */
 };
 
 enum hns3_mbx_tbl_cfg_subcode {
-- 
2.7.4