From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver

---
 kernel/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c |  225 ++++++++++++++++++++++++++++++++++++++++++++++---------
 1 files changed, 186 insertions(+), 39 deletions(-)

diff --git a/kernel/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/kernel/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 865d27a..d60b8df 100644
--- a/kernel/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/kernel/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -2,7 +2,9 @@
 // Copyright (c) 2016-2017 Hisilicon Limited.
 
 #include "hclge_main.h"
+#include "hclge_dcb.h"
 #include "hclge_tm.h"
+#include "hclge_dcb.h"
 #include "hnae3.h"
 
 #define BW_PERCENT	100
@@ -35,7 +37,9 @@
 		}
 	}
 
-	return hclge_tm_prio_tc_info_update(hdev, ets->prio_tc);
+	hclge_tm_prio_tc_info_update(hdev, ets->prio_tc);
+
+	return 0;
 }
 
 static void hclge_tm_info_to_ieee_ets(struct hclge_dev *hdev,
@@ -49,7 +53,10 @@
 
 	for (i = 0; i < HNAE3_MAX_TC; i++) {
 		ets->prio_tc[i] = hdev->tm_info.prio_tc[i];
-		ets->tc_tx_bw[i] = hdev->tm_info.pg_info[0].tc_dwrr[i];
+		if (i < hdev->tm_info.num_tc)
+			ets->tc_tx_bw[i] = hdev->tm_info.pg_info[0].tc_dwrr[i];
+		else
+			ets->tc_tx_bw[i] = 0;
 
 		if (hdev->tm_info.tc_info[i].tc_sch_mode ==
 		    HCLGE_SCH_MODE_SP)
@@ -70,25 +77,64 @@
 	return 0;
 }
 
-static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets,
-			      u8 *tc, bool *changed)
+static int hclge_dcb_common_validate(struct hclge_dev *hdev, u8 num_tc,
+				     u8 *prio_tc)
 {
-	bool has_ets_tc = false;
-	u32 total_ets_bw = 0;
-	u8 max_tc = 0;
+	int i;
+
+	if (num_tc > hdev->tc_max) {
+		dev_err(&hdev->pdev->dev,
+			"tc num checking failed, %u > tc_max(%u)\n",
+			num_tc, hdev->tc_max);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < HNAE3_MAX_USER_PRIO; i++) {
+		if (prio_tc[i] >= num_tc) {
+			dev_err(&hdev->pdev->dev,
+				"prio_tc[%d] checking failed, %u >= num_tc(%u)\n",
+				i, prio_tc[i], num_tc);
+			return -EINVAL;
+		}
+	}
+
+	if (num_tc > hdev->vport[0].alloc_tqps) {
+		dev_err(&hdev->pdev->dev,
+			"allocated tqp checking failed, %u > tqp(%u)\n",
+			num_tc, hdev->vport[0].alloc_tqps);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static u8 hclge_ets_tc_changed(struct hclge_dev *hdev, struct ieee_ets *ets,
+			       bool *changed)
+{
+	u8 max_tc_id = 0;
 	u8 i;
 
-	for (i = 0; i < HNAE3_MAX_TC; i++) {
-		if (ets->prio_tc[i] >= hdev->tc_max ||
-		    i >= hdev->tc_max)
-			return -EINVAL;
-
+	for (i = 0; i < HNAE3_MAX_USER_PRIO; i++) {
 		if (ets->prio_tc[i] != hdev->tm_info.prio_tc[i])
 			*changed = true;
 
-		if (ets->prio_tc[i] > max_tc)
-			max_tc = ets->prio_tc[i];
+		if (ets->prio_tc[i] > max_tc_id)
+			max_tc_id = ets->prio_tc[i];
+	}
 
+	/* return max tc number, max tc id need to plus 1 */
+	return max_tc_id + 1;
+}
+
+static int hclge_ets_sch_mode_validate(struct hclge_dev *hdev,
+				       struct ieee_ets *ets, bool *changed,
+				       u8 tc_num)
+{
+	bool has_ets_tc = false;
+	u32 total_ets_bw = 0;
+	u8 i;
+
+	for (i = 0; i < HNAE3_MAX_TC; i++) {
 		switch (ets->tc_tsa[i]) {
 		case IEEE_8021QAZ_TSA_STRICT:
 			if (hdev->tm_info.tc_info[i].tc_sch_mode !=
@@ -96,6 +142,13 @@
 				*changed = true;
 			break;
 		case IEEE_8021QAZ_TSA_ETS:
+			if (i >= tc_num) {
+				dev_err(&hdev->pdev->dev,
+					"tc%u is disabled, cannot set ets bw\n",
+					i);
+				return -EINVAL;
+			}
+
 			/* The hardware will switch to sp mode if bandwidth is
 			 * 0, so limit ets bandwidth must be greater than 0.
 			 */
@@ -120,28 +173,41 @@
 	if (has_ets_tc && total_ets_bw != BW_PERCENT)
 		return -EINVAL;
 
-	*tc = max_tc + 1;
+	return 0;
+}
+
+static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets,
+			      u8 *tc, bool *changed)
+{
+	u8 tc_num;
+	int ret;
+
+	tc_num = hclge_ets_tc_changed(hdev, ets, changed);
+
+	ret = hclge_dcb_common_validate(hdev, tc_num, ets->prio_tc);
+	if (ret)
+		return ret;
+
+	ret = hclge_ets_sch_mode_validate(hdev, ets, changed, tc_num);
+	if (ret)
+		return ret;
+
+	*tc = tc_num;
 	if (*tc != hdev->tm_info.num_tc)
 		*changed = true;
 
 	return 0;
 }
 
-static int hclge_map_update(struct hnae3_handle *h)
+static int hclge_map_update(struct hclge_dev *hdev)
 {
-	struct hclge_vport *vport = hclge_get_vport(h);
-	struct hclge_dev *hdev = vport->back;
 	int ret;
 
-	ret = hclge_tm_map_cfg(hdev);
+	ret = hclge_tm_schd_setup_hw(hdev);
 	if (ret)
 		return ret;
 
-	ret = hclge_tm_schd_mode_hw(hdev);
-	if (ret)
-		return ret;
-
-	ret = hclge_pause_setup_hw(hdev);
+	ret = hclge_pause_setup_hw(hdev, false);
 	if (ret)
 		return ret;
 
@@ -177,9 +243,32 @@
 	return 0;
 }
 
+static int hclge_notify_down_uinit(struct hclge_dev *hdev)
+{
+	int ret;
+
+	ret = hclge_notify_client(hdev, HNAE3_DOWN_CLIENT);
+	if (ret)
+		return ret;
+
+	return hclge_notify_client(hdev, HNAE3_UNINIT_CLIENT);
+}
+
+static int hclge_notify_init_up(struct hclge_dev *hdev)
+{
+	int ret;
+
+	ret = hclge_notify_client(hdev, HNAE3_INIT_CLIENT);
+	if (ret)
+		return ret;
+
+	return hclge_notify_client(hdev, HNAE3_UP_CLIENT);
+}
+
 static int hclge_ieee_setets(struct hnae3_handle *h, struct ieee_ets *ets)
 {
 	struct hclge_vport *vport = hclge_get_vport(h);
+	struct net_device *netdev = h->kinfo.netdev;
 	struct hclge_dev *hdev = vport->back;
 	bool map_changed = false;
 	u8 num_tc = 0;
@@ -193,19 +282,47 @@
 	if (ret)
 		return ret;
 
+	if (map_changed) {
+		netif_dbg(h, drv, netdev, "set ets\n");
+
+		ret = hclge_notify_down_uinit(hdev);
+		if (ret)
+			return ret;
+	}
+
 	hclge_tm_schd_info_update(hdev, num_tc);
+	if (num_tc > 1)
+		hdev->flag |= HCLGE_FLAG_DCB_ENABLE;
+	else
+		hdev->flag &= ~HCLGE_FLAG_DCB_ENABLE;
 
 	ret = hclge_ieee_ets_to_tm_info(hdev, ets);
 	if (ret)
-		return ret;
+		goto err_out;
 
 	if (map_changed) {
+		ret = hclge_map_update(hdev);
+		if (ret)
+			goto err_out;
+
 		ret = hclge_client_setup_tc(hdev);
+		if (ret)
+			goto err_out;
+
+		ret = hclge_notify_init_up(hdev);
 		if (ret)
 			return ret;
 	}
 
 	return hclge_tm_dwrr_cfg(hdev);
+
+err_out:
+	if (!map_changed)
+		return ret;
+
+	hclge_notify_init_up(hdev);
+
+	return ret;
 }
 
 static int hclge_ieee_getpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
@@ -238,11 +355,12 @@
 static int hclge_ieee_setpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
 {
 	struct hclge_vport *vport = hclge_get_vport(h);
+	struct net_device *netdev = h->kinfo.netdev;
 	struct hclge_dev *hdev = vport->back;
 	u8 i, j, pfc_map, *prio_tc;
+	int ret;
 
-	if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
-	    hdev->flag & HCLGE_FLAG_MQPRIO_ENABLE)
+	if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
 		return -EINVAL;
 
 	if (pfc->pfc_en == hdev->tm_info.pfc_en)
@@ -263,7 +381,27 @@
 	hdev->tm_info.hw_pfc_map = pfc_map;
 	hdev->tm_info.pfc_en = pfc->pfc_en;
 
-	return hclge_pause_setup_hw(hdev);
+	netif_dbg(h, drv, netdev,
+		  "set pfc: pfc_en=%x, pfc_map=%x, num_tc=%u\n",
+		  pfc->pfc_en, pfc_map, hdev->tm_info.num_tc);
+
+	hclge_tm_pfc_info_update(hdev);
+
+	ret = hclge_pause_setup_hw(hdev, false);
+	if (ret)
+		return ret;
+
+	ret = hclge_notify_client(hdev, HNAE3_DOWN_CLIENT);
+	if (ret)
+		return ret;
+
+	ret = hclge_buffer_alloc(hdev);
+	if (ret) {
+		hclge_notify_client(hdev, HNAE3_UP_CLIENT);
+		return ret;
+	}
+
+	return hclge_notify_client(hdev, HNAE3_UP_CLIENT);
 }
 
 /* DCBX configuration */
@@ -281,7 +419,10 @@
 static u8 hclge_setdcbx(struct hnae3_handle *h, u8 mode)
 {
 	struct hclge_vport *vport = hclge_get_vport(h);
+	struct net_device *netdev = h->kinfo.netdev;
 	struct hclge_dev *hdev = vport->back;
+
+	netif_dbg(h, drv, netdev, "set dcbx: mode=%u\n", mode);
 
 	/* No support for LLD_MANAGED modes or CEE */
 	if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
@@ -304,22 +445,24 @@
 	if (hdev->flag & HCLGE_FLAG_DCB_ENABLE)
 		return -EINVAL;
 
-	if (tc > hdev->tc_max) {
-		dev_err(&hdev->pdev->dev,
-			"setup tc failed, tc(%u) > tc_max(%u)\n",
-			tc, hdev->tc_max);
+	ret = hclge_dcb_common_validate(hdev, tc, prio_tc);
+	if (ret)
 		return -EINVAL;
-	}
+
+	ret = hclge_notify_down_uinit(hdev);
+	if (ret)
+		return ret;
 
 	hclge_tm_schd_info_update(hdev, tc);
+	hclge_tm_prio_tc_info_update(hdev, prio_tc);
 
-	ret = hclge_tm_prio_tc_info_update(hdev, prio_tc);
+	ret = hclge_tm_init_hw(hdev, false);
 	if (ret)
-		return ret;
+		goto err_out;
 
-	ret = hclge_tm_init_hw(hdev);
+	ret = hclge_client_setup_tc(hdev);
 	if (ret)
-		return ret;
+		goto err_out;
 
 	hdev->flag &= ~HCLGE_FLAG_DCB_ENABLE;
 
@@ -328,7 +471,12 @@
 	else
 		hdev->flag &= ~HCLGE_FLAG_MQPRIO_ENABLE;
 
-	return 0;
+	return hclge_notify_init_up(hdev);
+
+err_out:
+	hclge_notify_init_up(hdev);
+
+	return ret;
 }
 
 static const struct hnae3_dcb_ops hns3_dcb_ops = {
@@ -338,7 +486,6 @@
 	.ieee_setpfc	= hclge_ieee_setpfc,
 	.getdcbx	= hclge_getdcbx,
 	.setdcbx	= hclge_setdcbx,
-	.map_update	= hclge_map_update,
 	.setup_tc	= hclge_setup_tc,
 };
 

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