kernel/patches/0507-net-hns3-add-update-ethtool-advertised-link-modes-fo.patch

From 95aa028615d507dd1843676a6c1245b9b0b3a3a6 Mon Sep 17 00:00:00 2001
From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Thu, 18 Nov 2021 20:44:45 +0800
Subject: [PATCH] net: hns3: add update ethtool advertised link modes for FIBRE
 port when autoneg off

mainline inclusion
from mainline-v5.16-rc1
commit 6eaed433ee5f607f8b46ed9f15b3aa1112404704
category: feature
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8EMYT
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6eaed433ee5f607f8b46ed9f15b3aa1112404704

----------------------------------------------------------------------

Currently, the ethtool advertised link modes of FIBRE port is cleared to
zero when autoneg is off, so user can not get the advertised link modes
info directly from "ethtool <dev>" command.

In order to ameliorate this situation, update data of speeds, fec and pause
of advertised link modes when autoneg is off.

Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reviewed-by: Yongxin Li <liyongxin1@huawei.com>
Signed-off-by: Junxin Chen <chenjunxin1@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: Xiaodong Li <lixiaodong67@huawei.com>

 Conflicts:
	drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
---
 .../hisilicon/hns3/hns3pf/hclge_main.c        | 92 +++++++++++++++++--
 .../hisilicon/hns3/hns3pf/hclge_main.h        |  9 ++
 2 files changed, 94 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 842ccc673304..a07534583b2d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2994,12 +2994,90 @@ static void hclge_update_link_status(struct hclge_dev *hdev)
 	clear_bit(HCLGE_STATE_LINK_UPDATING, &hdev->state);
 }
 
-static void hclge_update_port_capability(struct hclge_mac *mac)
+static void hclge_update_speed_advertising(struct hclge_mac *mac)
 {
-#ifdef HAVE_ETHTOOL_CONVERT_U32_AND_LINK_MODE
-	/* update fec ability by speed */
-	hclge_convert_setting_fec(mac);
-#endif
+	u32 speed_ability;
+
+	if (hclge_get_speed_bit(mac->speed, &speed_ability))
+		return;
+
+	switch (mac->module_type) {
+	case HNAE3_MODULE_TYPE_FIBRE_LR:
+		hclge_convert_setting_lr(speed_ability, mac->advertising);
+		break;
+	case HNAE3_MODULE_TYPE_FIBRE_SR:
+	case HNAE3_MODULE_TYPE_AOC:
+		hclge_convert_setting_sr(speed_ability, mac->advertising);
+		break;
+	case HNAE3_MODULE_TYPE_CR:
+		hclge_convert_setting_cr(speed_ability, mac->advertising);
+		break;
+	case HNAE3_MODULE_TYPE_KR:
+		hclge_convert_setting_kr(speed_ability, mac->advertising);
+		break;
+	default:
+		break;
+	}
+}
+
+static void hclge_update_fec_advertising(struct hclge_mac *mac)
+{
+	if (mac->fec_mode & BIT(HNAE3_FEC_RS))
+		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_RS_BIT,
+				 mac->advertising);
+	else if (mac->fec_mode & BIT(HNAE3_FEC_BASER))
+		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_BASER_BIT,
+				 mac->advertising);
+	else
+		linkmode_set_bit(ETHTOOL_LINK_MODE_FEC_NONE_BIT,
+				 mac->advertising);
+}
+
+static void hclge_update_pause_advertising(struct hclge_dev *hdev)
+{
+	struct hclge_mac *mac = &hdev->hw.mac;
+	bool rx_en, tx_en;
+
+	switch (hdev->fc_mode_last_time) {
+	case HCLGE_FC_RX_PAUSE:
+		rx_en = true;
+		tx_en = false;
+		break;
+	case HCLGE_FC_TX_PAUSE:
+		rx_en = false;
+		tx_en = true;
+		break;
+	case HCLGE_FC_FULL:
+		rx_en = true;
+		tx_en = true;
+		break;
+	default:
+		rx_en = false;
+		tx_en = false;
+		break;
+	}
+
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT, mac->advertising, rx_en);
+	linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, mac->advertising,
+			 rx_en ^ tx_en);
+}
+
+static void hclge_update_advertising(struct hclge_dev *hdev)
+{
+	struct hclge_mac *mac = &hdev->hw.mac;
+
+	linkmode_zero(mac->advertising);
+	hclge_update_speed_advertising(mac);
+	hclge_update_fec_advertising(mac);
+	hclge_update_pause_advertising(hdev);
+}
+
+static void hclge_update_port_capability(struct hclge_dev *hdev,
+					 struct hclge_mac *mac)
+{
+	if (hnae3_dev_fec_supported(hdev))
+		hclge_convert_setting_fec(mac);
+
 	/* firmware can not identify back plane type, the media type
 	 * read from configuration can help deal it
 	 */
@@ -3015,7 +3093,7 @@ static void hclge_update_port_capability(struct hclge_mac *mac)
 	} else {
 		linkmode_clear_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
 				   mac->supported);
-		linkmode_zero(mac->advertising);
+		hclge_update_advertising(hdev);
 	}
 }
 
@@ -3256,7 +3334,7 @@ static int hclge_update_port_info(struct hclge_dev *hdev)
 
 	if (hdev->ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V2) {
 		if (mac->speed_type == QUERY_ACTIVE_SPEED) {
-			hclge_update_port_capability(mac);
+			hclge_update_port_capability(hdev, mac);
 			if (mac->speed != speed)
 				(void)hclge_tm_port_shaper_cfg(hdev);
 			return 0;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index a3d94306aa72..048bac08f1bf 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -1069,6 +1069,15 @@ static inline int hclge_get_queue_id(struct hnae3_queue *queue)
 	return tqp->index;
 }
 
+static inline void linkmode_mod_bit(int nr, volatile unsigned long *addr,
+				    int set)
+{
+	if (set)
+		linkmode_set_bit(nr, addr);
+	else
+		linkmode_clear_bit(nr, addr);
+}
+
 static inline bool hclge_is_reset_pending(struct hclge_dev *hdev)
 {
 	return !!hdev->reset_pending;
-- 
2.27.0