hclgevf_main.c 70.1 KB
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// SPDX-License-Identifier: GPL-2.0+
// Copyright (c) 2016-2017 Hisilicon Limited.

#include <linux/etherdevice.h>
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#include <linux/iopoll.h>
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#include <net/rtnetlink.h>
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#include "hclgevf_cmd.h"
#include "hclgevf_main.h"
#include "hclge_mbx.h"
#include "hnae3.h"

#define HCLGEVF_NAME	"hclgevf"

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static int hclgevf_reset_hdev(struct hclgevf_dev *hdev);
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static struct hnae3_ae_algo ae_algovf;

static const struct pci_device_id ae_algovf_pci_tbl[] = {
	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_VF), 0},
	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_DCB_PFC_VF), 0},
	/* required last entry */
	{0, }
};

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MODULE_DEVICE_TABLE(pci, ae_algovf_pci_tbl);

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static const u32 cmdq_reg_addr_list[] = {HCLGEVF_CMDQ_TX_ADDR_L_REG,
					 HCLGEVF_CMDQ_TX_ADDR_H_REG,
					 HCLGEVF_CMDQ_TX_DEPTH_REG,
					 HCLGEVF_CMDQ_TX_TAIL_REG,
					 HCLGEVF_CMDQ_TX_HEAD_REG,
					 HCLGEVF_CMDQ_RX_ADDR_L_REG,
					 HCLGEVF_CMDQ_RX_ADDR_H_REG,
					 HCLGEVF_CMDQ_RX_DEPTH_REG,
					 HCLGEVF_CMDQ_RX_TAIL_REG,
					 HCLGEVF_CMDQ_RX_HEAD_REG,
					 HCLGEVF_VECTOR0_CMDQ_SRC_REG,
					 HCLGEVF_CMDQ_INTR_STS_REG,
					 HCLGEVF_CMDQ_INTR_EN_REG,
					 HCLGEVF_CMDQ_INTR_GEN_REG};

static const u32 common_reg_addr_list[] = {HCLGEVF_MISC_VECTOR_REG_BASE,
					   HCLGEVF_RST_ING,
					   HCLGEVF_GRO_EN_REG};

static const u32 ring_reg_addr_list[] = {HCLGEVF_RING_RX_ADDR_L_REG,
					 HCLGEVF_RING_RX_ADDR_H_REG,
					 HCLGEVF_RING_RX_BD_NUM_REG,
					 HCLGEVF_RING_RX_BD_LENGTH_REG,
					 HCLGEVF_RING_RX_MERGE_EN_REG,
					 HCLGEVF_RING_RX_TAIL_REG,
					 HCLGEVF_RING_RX_HEAD_REG,
					 HCLGEVF_RING_RX_FBD_NUM_REG,
					 HCLGEVF_RING_RX_OFFSET_REG,
					 HCLGEVF_RING_RX_FBD_OFFSET_REG,
					 HCLGEVF_RING_RX_STASH_REG,
					 HCLGEVF_RING_RX_BD_ERR_REG,
					 HCLGEVF_RING_TX_ADDR_L_REG,
					 HCLGEVF_RING_TX_ADDR_H_REG,
					 HCLGEVF_RING_TX_BD_NUM_REG,
					 HCLGEVF_RING_TX_PRIORITY_REG,
					 HCLGEVF_RING_TX_TC_REG,
					 HCLGEVF_RING_TX_MERGE_EN_REG,
					 HCLGEVF_RING_TX_TAIL_REG,
					 HCLGEVF_RING_TX_HEAD_REG,
					 HCLGEVF_RING_TX_FBD_NUM_REG,
					 HCLGEVF_RING_TX_OFFSET_REG,
					 HCLGEVF_RING_TX_EBD_NUM_REG,
					 HCLGEVF_RING_TX_EBD_OFFSET_REG,
					 HCLGEVF_RING_TX_BD_ERR_REG,
					 HCLGEVF_RING_EN_REG};

static const u32 tqp_intr_reg_addr_list[] = {HCLGEVF_TQP_INTR_CTRL_REG,
					     HCLGEVF_TQP_INTR_GL0_REG,
					     HCLGEVF_TQP_INTR_GL1_REG,
					     HCLGEVF_TQP_INTR_GL2_REG,
					     HCLGEVF_TQP_INTR_RL_REG};

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static inline struct hclgevf_dev *hclgevf_ae_get_hdev(
	struct hnae3_handle *handle)
{
	return container_of(handle, struct hclgevf_dev, nic);
}

static int hclgevf_tqps_update_stats(struct hnae3_handle *handle)
{
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	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
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	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	struct hclgevf_desc desc;
	struct hclgevf_tqp *tqp;
	int status;
	int i;

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	for (i = 0; i < kinfo->num_tqps; i++) {
		tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q);
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		hclgevf_cmd_setup_basic_desc(&desc,
					     HCLGEVF_OPC_QUERY_RX_STATUS,
					     true);

		desc.data[0] = cpu_to_le32(tqp->index & 0x1ff);
		status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
		if (status) {
			dev_err(&hdev->pdev->dev,
				"Query tqp stat fail, status = %d,queue = %d\n",
				status,	i);
			return status;
		}
		tqp->tqp_stats.rcb_rx_ring_pktnum_rcd +=
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			le32_to_cpu(desc.data[1]);
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		hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_QUERY_TX_STATUS,
					     true);

		desc.data[0] = cpu_to_le32(tqp->index & 0x1ff);
		status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
		if (status) {
			dev_err(&hdev->pdev->dev,
				"Query tqp stat fail, status = %d,queue = %d\n",
				status, i);
			return status;
		}
		tqp->tqp_stats.rcb_tx_ring_pktnum_rcd +=
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			le32_to_cpu(desc.data[1]);
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	}

	return 0;
}

static u64 *hclgevf_tqps_get_stats(struct hnae3_handle *handle, u64 *data)
{
	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
	struct hclgevf_tqp *tqp;
	u64 *buff = data;
	int i;

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	for (i = 0; i < kinfo->num_tqps; i++) {
		tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q);
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		*buff++ = tqp->tqp_stats.rcb_tx_ring_pktnum_rcd;
	}
	for (i = 0; i < kinfo->num_tqps; i++) {
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		tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q);
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		*buff++ = tqp->tqp_stats.rcb_rx_ring_pktnum_rcd;
	}

	return buff;
}

static int hclgevf_tqps_get_sset_count(struct hnae3_handle *handle, int strset)
{
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	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
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	return kinfo->num_tqps * 2;
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}

static u8 *hclgevf_tqps_get_strings(struct hnae3_handle *handle, u8 *data)
{
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	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
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	u8 *buff = data;
	int i = 0;

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	for (i = 0; i < kinfo->num_tqps; i++) {
		struct hclgevf_tqp *tqp = container_of(kinfo->tqp[i],
						       struct hclgevf_tqp, q);
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		snprintf(buff, ETH_GSTRING_LEN, "txq%d_pktnum_rcd",
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			 tqp->index);
		buff += ETH_GSTRING_LEN;
	}

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	for (i = 0; i < kinfo->num_tqps; i++) {
		struct hclgevf_tqp *tqp = container_of(kinfo->tqp[i],
						       struct hclgevf_tqp, q);
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		snprintf(buff, ETH_GSTRING_LEN, "rxq%d_pktnum_rcd",
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			 tqp->index);
		buff += ETH_GSTRING_LEN;
	}

	return buff;
}

static void hclgevf_update_stats(struct hnae3_handle *handle,
				 struct net_device_stats *net_stats)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	int status;

	status = hclgevf_tqps_update_stats(handle);
	if (status)
		dev_err(&hdev->pdev->dev,
			"VF update of TQPS stats fail, status = %d.\n",
			status);
}

static int hclgevf_get_sset_count(struct hnae3_handle *handle, int strset)
{
	if (strset == ETH_SS_TEST)
		return -EOPNOTSUPP;
	else if (strset == ETH_SS_STATS)
		return hclgevf_tqps_get_sset_count(handle, strset);

	return 0;
}

static void hclgevf_get_strings(struct hnae3_handle *handle, u32 strset,
				u8 *data)
{
	u8 *p = (char *)data;

	if (strset == ETH_SS_STATS)
		p = hclgevf_tqps_get_strings(handle, p);
}

static void hclgevf_get_stats(struct hnae3_handle *handle, u64 *data)
{
	hclgevf_tqps_get_stats(handle, data);
}

static int hclgevf_get_tc_info(struct hclgevf_dev *hdev)
{
	u8 resp_msg;
	int status;

	status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_TCINFO, 0, NULL, 0,
				      true, &resp_msg, sizeof(u8));
	if (status) {
		dev_err(&hdev->pdev->dev,
			"VF request to get TC info from PF failed %d",
			status);
		return status;
	}

	hdev->hw_tc_map = resp_msg;

	return 0;
}

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static int hclgevf_get_queue_info(struct hclgevf_dev *hdev)
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{
#define HCLGEVF_TQPS_RSS_INFO_LEN	8
	u8 resp_msg[HCLGEVF_TQPS_RSS_INFO_LEN];
	int status;

	status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_QINFO, 0, NULL, 0,
				      true, resp_msg,
				      HCLGEVF_TQPS_RSS_INFO_LEN);
	if (status) {
		dev_err(&hdev->pdev->dev,
			"VF request to get tqp info from PF failed %d",
			status);
		return status;
	}

	memcpy(&hdev->num_tqps, &resp_msg[0], sizeof(u16));
	memcpy(&hdev->rss_size_max, &resp_msg[2], sizeof(u16));
	memcpy(&hdev->num_desc, &resp_msg[4], sizeof(u16));
	memcpy(&hdev->rx_buf_len, &resp_msg[6], sizeof(u16));

	return 0;
}

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static u16 hclgevf_get_qid_global(struct hnae3_handle *handle, u16 queue_id)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	u8 msg_data[2], resp_data[2];
	u16 qid_in_pf = 0;
	int ret;

	memcpy(&msg_data[0], &queue_id, sizeof(queue_id));

	ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_QID_IN_PF, 0, msg_data,
				   2, true, resp_data, 2);
	if (!ret)
		qid_in_pf = *(u16 *)resp_data;

	return qid_in_pf;
}

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static int hclgevf_alloc_tqps(struct hclgevf_dev *hdev)
{
	struct hclgevf_tqp *tqp;
	int i;

	hdev->htqp = devm_kcalloc(&hdev->pdev->dev, hdev->num_tqps,
				  sizeof(struct hclgevf_tqp), GFP_KERNEL);
	if (!hdev->htqp)
		return -ENOMEM;

	tqp = hdev->htqp;

	for (i = 0; i < hdev->num_tqps; i++) {
		tqp->dev = &hdev->pdev->dev;
		tqp->index = i;

		tqp->q.ae_algo = &ae_algovf;
		tqp->q.buf_size = hdev->rx_buf_len;
		tqp->q.desc_num = hdev->num_desc;
		tqp->q.io_base = hdev->hw.io_base + HCLGEVF_TQP_REG_OFFSET +
			i * HCLGEVF_TQP_REG_SIZE;

		tqp++;
	}

	return 0;
}

static int hclgevf_knic_setup(struct hclgevf_dev *hdev)
{
	struct hnae3_handle *nic = &hdev->nic;
	struct hnae3_knic_private_info *kinfo;
	u16 new_tqps = hdev->num_tqps;
	int i;

	kinfo = &nic->kinfo;
	kinfo->num_tc = 0;
	kinfo->num_desc = hdev->num_desc;
	kinfo->rx_buf_len = hdev->rx_buf_len;
	for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++)
		if (hdev->hw_tc_map & BIT(i))
			kinfo->num_tc++;

	kinfo->rss_size
		= min_t(u16, hdev->rss_size_max, new_tqps / kinfo->num_tc);
	new_tqps = kinfo->rss_size * kinfo->num_tc;
	kinfo->num_tqps = min(new_tqps, hdev->num_tqps);

	kinfo->tqp = devm_kcalloc(&hdev->pdev->dev, kinfo->num_tqps,
				  sizeof(struct hnae3_queue *), GFP_KERNEL);
	if (!kinfo->tqp)
		return -ENOMEM;

	for (i = 0; i < kinfo->num_tqps; i++) {
		hdev->htqp[i].q.handle = &hdev->nic;
		hdev->htqp[i].q.tqp_index = i;
		kinfo->tqp[i] = &hdev->htqp[i].q;
	}

	return 0;
}

static void hclgevf_request_link_info(struct hclgevf_dev *hdev)
{
	int status;
	u8 resp_msg;

	status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_GET_LINK_STATUS, 0, NULL,
				      0, false, &resp_msg, sizeof(u8));
	if (status)
		dev_err(&hdev->pdev->dev,
			"VF failed to fetch link status(%d) from PF", status);
}

void hclgevf_update_link_status(struct hclgevf_dev *hdev, int link_state)
{
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	struct hnae3_handle *rhandle = &hdev->roce;
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	struct hnae3_handle *handle = &hdev->nic;
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	struct hnae3_client *rclient;
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	struct hnae3_client *client;

	client = handle->client;
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	rclient = hdev->roce_client;
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	link_state =
		test_bit(HCLGEVF_STATE_DOWN, &hdev->state) ? 0 : link_state;

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	if (link_state != hdev->hw.mac.link) {
		client->ops->link_status_change(handle, !!link_state);
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		if (rclient && rclient->ops->link_status_change)
			rclient->ops->link_status_change(rhandle, !!link_state);
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		hdev->hw.mac.link = link_state;
	}
}

static int hclgevf_set_handle_info(struct hclgevf_dev *hdev)
{
	struct hnae3_handle *nic = &hdev->nic;
	int ret;

	nic->ae_algo = &ae_algovf;
	nic->pdev = hdev->pdev;
	nic->numa_node_mask = hdev->numa_node_mask;
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	nic->flags |= HNAE3_SUPPORT_VF;
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	if (hdev->ae_dev->dev_type != HNAE3_DEV_KNIC) {
		dev_err(&hdev->pdev->dev, "unsupported device type %d\n",
			hdev->ae_dev->dev_type);
		return -EINVAL;
	}

	ret = hclgevf_knic_setup(hdev);
	if (ret)
		dev_err(&hdev->pdev->dev, "VF knic setup failed %d\n",
			ret);
	return ret;
}

static void hclgevf_free_vector(struct hclgevf_dev *hdev, int vector_id)
{
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	if (hdev->vector_status[vector_id] == HCLGEVF_INVALID_VPORT) {
		dev_warn(&hdev->pdev->dev,
			 "vector(vector_id %d) has been freed.\n", vector_id);
		return;
	}

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	hdev->vector_status[vector_id] = HCLGEVF_INVALID_VPORT;
	hdev->num_msi_left += 1;
	hdev->num_msi_used -= 1;
}

static int hclgevf_get_vector(struct hnae3_handle *handle, u16 vector_num,
			      struct hnae3_vector_info *vector_info)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	struct hnae3_vector_info *vector = vector_info;
	int alloc = 0;
	int i, j;

	vector_num = min(hdev->num_msi_left, vector_num);

	for (j = 0; j < vector_num; j++) {
		for (i = HCLGEVF_MISC_VECTOR_NUM + 1; i < hdev->num_msi; i++) {
			if (hdev->vector_status[i] == HCLGEVF_INVALID_VPORT) {
				vector->vector = pci_irq_vector(hdev->pdev, i);
				vector->io_addr = hdev->hw.io_base +
					HCLGEVF_VECTOR_REG_BASE +
					(i - 1) * HCLGEVF_VECTOR_REG_OFFSET;
				hdev->vector_status[i] = 0;
				hdev->vector_irq[i] = vector->vector;

				vector++;
				alloc++;

				break;
			}
		}
	}
	hdev->num_msi_left -= alloc;
	hdev->num_msi_used += alloc;

	return alloc;
}

static int hclgevf_get_vector_index(struct hclgevf_dev *hdev, int vector)
{
	int i;

	for (i = 0; i < hdev->num_msi; i++)
		if (vector == hdev->vector_irq[i])
			return i;

	return -EINVAL;
}

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static int hclgevf_set_rss_algo_key(struct hclgevf_dev *hdev,
				    const u8 hfunc, const u8 *key)
{
	struct hclgevf_rss_config_cmd *req;
	struct hclgevf_desc desc;
	int key_offset;
	int key_size;
	int ret;

	req = (struct hclgevf_rss_config_cmd *)desc.data;

	for (key_offset = 0; key_offset < 3; key_offset++) {
		hclgevf_cmd_setup_basic_desc(&desc,
					     HCLGEVF_OPC_RSS_GENERIC_CONFIG,
					     false);

		req->hash_config |= (hfunc & HCLGEVF_RSS_HASH_ALGO_MASK);
		req->hash_config |=
			(key_offset << HCLGEVF_RSS_HASH_KEY_OFFSET_B);

		if (key_offset == 2)
			key_size =
			HCLGEVF_RSS_KEY_SIZE - HCLGEVF_RSS_HASH_KEY_NUM * 2;
		else
			key_size = HCLGEVF_RSS_HASH_KEY_NUM;

		memcpy(req->hash_key,
		       key + key_offset * HCLGEVF_RSS_HASH_KEY_NUM, key_size);

		ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
		if (ret) {
			dev_err(&hdev->pdev->dev,
				"Configure RSS config fail, status = %d\n",
				ret);
			return ret;
		}
	}

	return 0;
}

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static u32 hclgevf_get_rss_key_size(struct hnae3_handle *handle)
{
	return HCLGEVF_RSS_KEY_SIZE;
}

static u32 hclgevf_get_rss_indir_size(struct hnae3_handle *handle)
{
	return HCLGEVF_RSS_IND_TBL_SIZE;
}

static int hclgevf_set_rss_indir_table(struct hclgevf_dev *hdev)
{
	const u8 *indir = hdev->rss_cfg.rss_indirection_tbl;
	struct hclgevf_rss_indirection_table_cmd *req;
	struct hclgevf_desc desc;
	int status;
	int i, j;

	req = (struct hclgevf_rss_indirection_table_cmd *)desc.data;

	for (i = 0; i < HCLGEVF_RSS_CFG_TBL_NUM; i++) {
		hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_INDIR_TABLE,
					     false);
		req->start_table_index = i * HCLGEVF_RSS_CFG_TBL_SIZE;
		req->rss_set_bitmap = HCLGEVF_RSS_SET_BITMAP_MSK;
		for (j = 0; j < HCLGEVF_RSS_CFG_TBL_SIZE; j++)
			req->rss_result[j] =
				indir[i * HCLGEVF_RSS_CFG_TBL_SIZE + j];

		status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
		if (status) {
			dev_err(&hdev->pdev->dev,
				"VF failed(=%d) to set RSS indirection table\n",
				status);
			return status;
		}
	}

	return 0;
}

static int hclgevf_set_rss_tc_mode(struct hclgevf_dev *hdev,  u16 rss_size)
{
	struct hclgevf_rss_tc_mode_cmd *req;
	u16 tc_offset[HCLGEVF_MAX_TC_NUM];
	u16 tc_valid[HCLGEVF_MAX_TC_NUM];
	u16 tc_size[HCLGEVF_MAX_TC_NUM];
	struct hclgevf_desc desc;
	u16 roundup_size;
	int status;
	int i;

	req = (struct hclgevf_rss_tc_mode_cmd *)desc.data;

	roundup_size = roundup_pow_of_two(rss_size);
	roundup_size = ilog2(roundup_size);

	for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++) {
		tc_valid[i] = !!(hdev->hw_tc_map & BIT(i));
		tc_size[i] = roundup_size;
		tc_offset[i] = rss_size * i;
	}

	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_TC_MODE, false);
	for (i = 0; i < HCLGEVF_MAX_TC_NUM; i++) {
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		hnae3_set_bit(req->rss_tc_mode[i], HCLGEVF_RSS_TC_VALID_B,
			      (tc_valid[i] & 0x1));
		hnae3_set_field(req->rss_tc_mode[i], HCLGEVF_RSS_TC_SIZE_M,
				HCLGEVF_RSS_TC_SIZE_S, tc_size[i]);
		hnae3_set_field(req->rss_tc_mode[i], HCLGEVF_RSS_TC_OFFSET_M,
				HCLGEVF_RSS_TC_OFFSET_S, tc_offset[i]);
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	}
	status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
	if (status)
		dev_err(&hdev->pdev->dev,
			"VF failed(=%d) to set rss tc mode\n", status);

	return status;
}

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static int hclgevf_get_rss(struct hnae3_handle *handle, u32 *indir, u8 *key,
			   u8 *hfunc)
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{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
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	struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
	int i;
578

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	if (handle->pdev->revision >= 0x21) {
		/* Get hash algorithm */
		if (hfunc) {
			switch (rss_cfg->hash_algo) {
			case HCLGEVF_RSS_HASH_ALGO_TOEPLITZ:
				*hfunc = ETH_RSS_HASH_TOP;
				break;
			case HCLGEVF_RSS_HASH_ALGO_SIMPLE:
				*hfunc = ETH_RSS_HASH_XOR;
				break;
			default:
				*hfunc = ETH_RSS_HASH_UNKNOWN;
				break;
			}
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		}

595
		/* Get the RSS Key required by the user */
596
		if (key)
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			memcpy(key, rss_cfg->rss_hash_key,
			       HCLGEVF_RSS_KEY_SIZE);
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	}

	if (indir)
		for (i = 0; i < HCLGEVF_RSS_IND_TBL_SIZE; i++)
			indir[i] = rss_cfg->rss_indirection_tbl[i];

605
	return 0;
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}

static int hclgevf_set_rss(struct hnae3_handle *handle, const u32 *indir,
			   const  u8 *key, const  u8 hfunc)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
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	int ret, i;

	if (handle->pdev->revision >= 0x21) {
		/* Set the RSS Hash Key if specififed by the user */
		if (key) {
			switch (hfunc) {
			case ETH_RSS_HASH_TOP:
				rss_cfg->hash_algo =
					HCLGEVF_RSS_HASH_ALGO_TOEPLITZ;
				break;
			case ETH_RSS_HASH_XOR:
				rss_cfg->hash_algo =
					HCLGEVF_RSS_HASH_ALGO_SIMPLE;
				break;
			case ETH_RSS_HASH_NO_CHANGE:
				break;
			default:
				return -EINVAL;
			}

			ret = hclgevf_set_rss_algo_key(hdev, rss_cfg->hash_algo,
						       key);
			if (ret)
				return ret;

			/* Update the shadow RSS key with user specified qids */
			memcpy(rss_cfg->rss_hash_key, key,
			       HCLGEVF_RSS_KEY_SIZE);
		}
	}
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	/* update the shadow RSS table with user specified qids */
	for (i = 0; i < HCLGEVF_RSS_IND_TBL_SIZE; i++)
		rss_cfg->rss_indirection_tbl[i] = indir[i];

	/* update the hardware */
	return hclgevf_set_rss_indir_table(hdev);
}

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static u8 hclgevf_get_rss_hash_bits(struct ethtool_rxnfc *nfc)
{
	u8 hash_sets = nfc->data & RXH_L4_B_0_1 ? HCLGEVF_S_PORT_BIT : 0;

	if (nfc->data & RXH_L4_B_2_3)
		hash_sets |= HCLGEVF_D_PORT_BIT;
	else
		hash_sets &= ~HCLGEVF_D_PORT_BIT;

	if (nfc->data & RXH_IP_SRC)
		hash_sets |= HCLGEVF_S_IP_BIT;
	else
		hash_sets &= ~HCLGEVF_S_IP_BIT;

	if (nfc->data & RXH_IP_DST)
		hash_sets |= HCLGEVF_D_IP_BIT;
	else
		hash_sets &= ~HCLGEVF_D_IP_BIT;

	if (nfc->flow_type == SCTP_V4_FLOW || nfc->flow_type == SCTP_V6_FLOW)
		hash_sets |= HCLGEVF_V_TAG_BIT;

	return hash_sets;
}

static int hclgevf_set_rss_tuple(struct hnae3_handle *handle,
				 struct ethtool_rxnfc *nfc)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
	struct hclgevf_rss_input_tuple_cmd *req;
	struct hclgevf_desc desc;
	u8 tuple_sets;
	int ret;

	if (handle->pdev->revision == 0x20)
		return -EOPNOTSUPP;

	if (nfc->data &
	    ~(RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3))
		return -EINVAL;

	req = (struct hclgevf_rss_input_tuple_cmd *)desc.data;
	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_INPUT_TUPLE, false);

	req->ipv4_tcp_en = rss_cfg->rss_tuple_sets.ipv4_tcp_en;
	req->ipv4_udp_en = rss_cfg->rss_tuple_sets.ipv4_udp_en;
	req->ipv4_sctp_en = rss_cfg->rss_tuple_sets.ipv4_sctp_en;
	req->ipv4_fragment_en = rss_cfg->rss_tuple_sets.ipv4_fragment_en;
	req->ipv6_tcp_en = rss_cfg->rss_tuple_sets.ipv6_tcp_en;
	req->ipv6_udp_en = rss_cfg->rss_tuple_sets.ipv6_udp_en;
	req->ipv6_sctp_en = rss_cfg->rss_tuple_sets.ipv6_sctp_en;
	req->ipv6_fragment_en = rss_cfg->rss_tuple_sets.ipv6_fragment_en;

	tuple_sets = hclgevf_get_rss_hash_bits(nfc);
	switch (nfc->flow_type) {
	case TCP_V4_FLOW:
		req->ipv4_tcp_en = tuple_sets;
		break;
	case TCP_V6_FLOW:
		req->ipv6_tcp_en = tuple_sets;
		break;
	case UDP_V4_FLOW:
		req->ipv4_udp_en = tuple_sets;
		break;
	case UDP_V6_FLOW:
		req->ipv6_udp_en = tuple_sets;
		break;
	case SCTP_V4_FLOW:
		req->ipv4_sctp_en = tuple_sets;
		break;
	case SCTP_V6_FLOW:
		if ((nfc->data & RXH_L4_B_0_1) ||
		    (nfc->data & RXH_L4_B_2_3))
			return -EINVAL;

		req->ipv6_sctp_en = tuple_sets;
		break;
	case IPV4_FLOW:
		req->ipv4_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER;
		break;
	case IPV6_FLOW:
		req->ipv6_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER;
		break;
	default:
		return -EINVAL;
	}

	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"Set rss tuple fail, status = %d\n", ret);
		return ret;
	}

	rss_cfg->rss_tuple_sets.ipv4_tcp_en = req->ipv4_tcp_en;
	rss_cfg->rss_tuple_sets.ipv4_udp_en = req->ipv4_udp_en;
	rss_cfg->rss_tuple_sets.ipv4_sctp_en = req->ipv4_sctp_en;
	rss_cfg->rss_tuple_sets.ipv4_fragment_en = req->ipv4_fragment_en;
	rss_cfg->rss_tuple_sets.ipv6_tcp_en = req->ipv6_tcp_en;
	rss_cfg->rss_tuple_sets.ipv6_udp_en = req->ipv6_udp_en;
	rss_cfg->rss_tuple_sets.ipv6_sctp_en = req->ipv6_sctp_en;
	rss_cfg->rss_tuple_sets.ipv6_fragment_en = req->ipv6_fragment_en;
	return 0;
}

static int hclgevf_get_rss_tuple(struct hnae3_handle *handle,
				 struct ethtool_rxnfc *nfc)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
	u8 tuple_sets;

	if (handle->pdev->revision == 0x20)
		return -EOPNOTSUPP;

	nfc->data = 0;

	switch (nfc->flow_type) {
	case TCP_V4_FLOW:
		tuple_sets = rss_cfg->rss_tuple_sets.ipv4_tcp_en;
		break;
	case UDP_V4_FLOW:
		tuple_sets = rss_cfg->rss_tuple_sets.ipv4_udp_en;
		break;
	case TCP_V6_FLOW:
		tuple_sets = rss_cfg->rss_tuple_sets.ipv6_tcp_en;
		break;
	case UDP_V6_FLOW:
		tuple_sets = rss_cfg->rss_tuple_sets.ipv6_udp_en;
		break;
	case SCTP_V4_FLOW:
		tuple_sets = rss_cfg->rss_tuple_sets.ipv4_sctp_en;
		break;
	case SCTP_V6_FLOW:
		tuple_sets = rss_cfg->rss_tuple_sets.ipv6_sctp_en;
		break;
	case IPV4_FLOW:
	case IPV6_FLOW:
		tuple_sets = HCLGEVF_S_IP_BIT | HCLGEVF_D_IP_BIT;
		break;
	default:
		return -EINVAL;
	}

	if (!tuple_sets)
		return 0;

	if (tuple_sets & HCLGEVF_D_PORT_BIT)
		nfc->data |= RXH_L4_B_2_3;
	if (tuple_sets & HCLGEVF_S_PORT_BIT)
		nfc->data |= RXH_L4_B_0_1;
	if (tuple_sets & HCLGEVF_D_IP_BIT)
		nfc->data |= RXH_IP_DST;
	if (tuple_sets & HCLGEVF_S_IP_BIT)
		nfc->data |= RXH_IP_SRC;

	return 0;
}

static int hclgevf_set_rss_input_tuple(struct hclgevf_dev *hdev,
				       struct hclgevf_rss_cfg *rss_cfg)
{
	struct hclgevf_rss_input_tuple_cmd *req;
	struct hclgevf_desc desc;
	int ret;

	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_RSS_INPUT_TUPLE, false);

	req = (struct hclgevf_rss_input_tuple_cmd *)desc.data;

	req->ipv4_tcp_en = rss_cfg->rss_tuple_sets.ipv4_tcp_en;
	req->ipv4_udp_en = rss_cfg->rss_tuple_sets.ipv4_udp_en;
	req->ipv4_sctp_en = rss_cfg->rss_tuple_sets.ipv4_sctp_en;
	req->ipv4_fragment_en = rss_cfg->rss_tuple_sets.ipv4_fragment_en;
	req->ipv6_tcp_en = rss_cfg->rss_tuple_sets.ipv6_tcp_en;
	req->ipv6_udp_en = rss_cfg->rss_tuple_sets.ipv6_udp_en;
	req->ipv6_sctp_en = rss_cfg->rss_tuple_sets.ipv6_sctp_en;
	req->ipv6_fragment_en = rss_cfg->rss_tuple_sets.ipv6_fragment_en;

	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
	if (ret)
		dev_err(&hdev->pdev->dev,
			"Configure rss input fail, status = %d\n", ret);
	return ret;
}

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static int hclgevf_get_tc_size(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;

	return rss_cfg->rss_size;
}

static int hclgevf_bind_ring_to_vector(struct hnae3_handle *handle, bool en,
848
				       int vector_id,
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				       struct hnae3_ring_chain_node *ring_chain)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	struct hnae3_ring_chain_node *node;
	struct hclge_mbx_vf_to_pf_cmd *req;
	struct hclgevf_desc desc;
855
	int i = 0;
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	int status;
	u8 type;

	req = (struct hclge_mbx_vf_to_pf_cmd *)desc.data;

	for (node = ring_chain; node; node = node->next) {
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		int idx_offset = HCLGE_MBX_RING_MAP_BASIC_MSG_NUM +
					HCLGE_MBX_RING_NODE_VARIABLE_NUM * i;

		if (i == 0) {
			hclgevf_cmd_setup_basic_desc(&desc,
						     HCLGEVF_OPC_MBX_VF_TO_PF,
						     false);
			type = en ?
				HCLGE_MBX_MAP_RING_TO_VECTOR :
				HCLGE_MBX_UNMAP_RING_TO_VECTOR;
			req->msg[0] = type;
			req->msg[1] = vector_id;
		}

		req->msg[idx_offset] =
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				hnae3_get_bit(node->flag, HNAE3_RING_TYPE_B);
878
		req->msg[idx_offset + 1] = node->tqp_index;
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		req->msg[idx_offset + 2] = hnae3_get_field(node->int_gl_idx,
							   HNAE3_RING_GL_IDX_M,
							   HNAE3_RING_GL_IDX_S);
882 883 884 885 886 887

		i++;
		if ((i == (HCLGE_MBX_VF_MSG_DATA_NUM -
		     HCLGE_MBX_RING_MAP_BASIC_MSG_NUM) /
		     HCLGE_MBX_RING_NODE_VARIABLE_NUM) ||
		    !node->next) {
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			req->msg[2] = i;

			status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
			if (status) {
				dev_err(&hdev->pdev->dev,
					"Map TQP fail, status is %d.\n",
					status);
				return status;
			}
			i = 0;
			hclgevf_cmd_setup_basic_desc(&desc,
						     HCLGEVF_OPC_MBX_VF_TO_PF,
						     false);
			req->msg[0] = type;
			req->msg[1] = vector_id;
		}
	}

	return 0;
}

static int hclgevf_map_ring_to_vector(struct hnae3_handle *handle, int vector,
				      struct hnae3_ring_chain_node *ring_chain)
{
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	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	int vector_id;

	vector_id = hclgevf_get_vector_index(hdev, vector);
	if (vector_id < 0) {
		dev_err(&handle->pdev->dev,
			"Get vector index fail. ret =%d\n", vector_id);
		return vector_id;
	}

	return hclgevf_bind_ring_to_vector(handle, true, vector_id, ring_chain);
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}

static int hclgevf_unmap_ring_from_vector(
				struct hnae3_handle *handle,
				int vector,
				struct hnae3_ring_chain_node *ring_chain)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	int ret, vector_id;

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	if (test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state))
		return 0;

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	vector_id = hclgevf_get_vector_index(hdev, vector);
	if (vector_id < 0) {
		dev_err(&handle->pdev->dev,
			"Get vector index fail. ret =%d\n", vector_id);
		return vector_id;
	}

943
	ret = hclgevf_bind_ring_to_vector(handle, false, vector_id, ring_chain);
944
	if (ret)
945 946 947 948
		dev_err(&handle->pdev->dev,
			"Unmap ring from vector fail. vector=%d, ret =%d\n",
			vector_id,
			ret);
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	return ret;
}

static int hclgevf_put_vector(struct hnae3_handle *handle, int vector)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
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	int vector_id;

	vector_id = hclgevf_get_vector_index(hdev, vector);
	if (vector_id < 0) {
		dev_err(&handle->pdev->dev,
			"hclgevf_put_vector get vector index fail. ret =%d\n",
			vector_id);
		return vector_id;
	}
965

966
	hclgevf_free_vector(hdev, vector_id);
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	return 0;
}

971
static int hclgevf_cmd_set_promisc_mode(struct hclgevf_dev *hdev,
972
					bool en_bc_pmc)
973 974 975
{
	struct hclge_mbx_vf_to_pf_cmd *req;
	struct hclgevf_desc desc;
976
	int ret;
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	req = (struct hclge_mbx_vf_to_pf_cmd *)desc.data;

	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_MBX_VF_TO_PF, false);
	req->msg[0] = HCLGE_MBX_SET_PROMISC_MODE;
982
	req->msg[1] = en_bc_pmc ? 1 : 0;
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	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
	if (ret)
986
		dev_err(&hdev->pdev->dev,
987
			"Set promisc mode fail, status is %d.\n", ret);
988

989
	return ret;
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}

992
static int hclgevf_set_promisc_mode(struct hclgevf_dev *hdev, bool en_bc_pmc)
993
{
994
	return hclgevf_cmd_set_promisc_mode(hdev, en_bc_pmc);
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}

static int hclgevf_tqp_enable(struct hclgevf_dev *hdev, int tqp_id,
			      int stream_id, bool enable)
{
	struct hclgevf_cfg_com_tqp_queue_cmd *req;
	struct hclgevf_desc desc;
	int status;

	req = (struct hclgevf_cfg_com_tqp_queue_cmd *)desc.data;

	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_CFG_COM_TQP_QUEUE,
				     false);
	req->tqp_id = cpu_to_le16(tqp_id & HCLGEVF_RING_ID_MASK);
	req->stream_id = cpu_to_le16(stream_id);
	req->enable |= enable << HCLGEVF_TQP_ENABLE_B;

	status = hclgevf_cmd_send(&hdev->hw, &desc, 1);
	if (status)
		dev_err(&hdev->pdev->dev,
			"TQP enable fail, status =%d.\n", status);

	return status;
}

static void hclgevf_reset_tqp_stats(struct hnae3_handle *handle)
{
1022
	struct hnae3_knic_private_info *kinfo = &handle->kinfo;
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	struct hclgevf_tqp *tqp;
	int i;

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	for (i = 0; i < kinfo->num_tqps; i++) {
		tqp = container_of(kinfo->tqp[i], struct hclgevf_tqp, q);
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		memset(&tqp->tqp_stats, 0, sizeof(tqp->tqp_stats));
	}
}

static void hclgevf_get_mac_addr(struct hnae3_handle *handle, u8 *p)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	ether_addr_copy(p, hdev->hw.mac.mac_addr);
}

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static int hclgevf_set_mac_addr(struct hnae3_handle *handle, void *p,
				bool is_first)
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{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	u8 *old_mac_addr = (u8 *)hdev->hw.mac.mac_addr;
	u8 *new_mac_addr = (u8 *)p;
	u8 msg_data[ETH_ALEN * 2];
1046
	u16 subcode;
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	int status;

	ether_addr_copy(msg_data, new_mac_addr);
	ether_addr_copy(&msg_data[ETH_ALEN], old_mac_addr);

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	subcode = is_first ? HCLGE_MBX_MAC_VLAN_UC_ADD :
			HCLGE_MBX_MAC_VLAN_UC_MODIFY;

1055
	status = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_UNICAST,
1056
				      subcode, msg_data, ETH_ALEN * 2,
1057
				      true, NULL, 0);
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	if (!status)
		ether_addr_copy(hdev->hw.mac.mac_addr, new_mac_addr);

	return status;
}

static int hclgevf_add_uc_addr(struct hnae3_handle *handle,
			       const unsigned char *addr)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_UNICAST,
				    HCLGE_MBX_MAC_VLAN_UC_ADD,
				    addr, ETH_ALEN, false, NULL, 0);
}

static int hclgevf_rm_uc_addr(struct hnae3_handle *handle,
			      const unsigned char *addr)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_UNICAST,
				    HCLGE_MBX_MAC_VLAN_UC_REMOVE,
				    addr, ETH_ALEN, false, NULL, 0);
}

static int hclgevf_add_mc_addr(struct hnae3_handle *handle,
			       const unsigned char *addr)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_MULTICAST,
				    HCLGE_MBX_MAC_VLAN_MC_ADD,
				    addr, ETH_ALEN, false, NULL, 0);
}

static int hclgevf_rm_mc_addr(struct hnae3_handle *handle,
			      const unsigned char *addr)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_MULTICAST,
				    HCLGE_MBX_MAC_VLAN_MC_REMOVE,
				    addr, ETH_ALEN, false, NULL, 0);
}

static int hclgevf_set_vlan_filter(struct hnae3_handle *handle,
				   __be16 proto, u16 vlan_id,
				   bool is_kill)
{
#define HCLGEVF_VLAN_MBX_MSG_LEN 5
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	u8 msg_data[HCLGEVF_VLAN_MBX_MSG_LEN];

	if (vlan_id > 4095)
		return -EINVAL;

	if (proto != htons(ETH_P_8021Q))
		return -EPROTONOSUPPORT;

	msg_data[0] = is_kill;
	memcpy(&msg_data[1], &vlan_id, sizeof(vlan_id));
	memcpy(&msg_data[3], &proto, sizeof(proto));
	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_VLAN,
				    HCLGE_MBX_VLAN_FILTER, msg_data,
				    HCLGEVF_VLAN_MBX_MSG_LEN, false, NULL, 0);
}

1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136
static int hclgevf_en_hw_strip_rxvtag(struct hnae3_handle *handle, bool enable)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	u8 msg_data;

	msg_data = enable ? 1 : 0;
	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_VLAN,
				    HCLGE_MBX_VLAN_RX_OFF_CFG, &msg_data,
				    1, false, NULL, 0);
}

1137
static int hclgevf_reset_tqp(struct hnae3_handle *handle, u16 queue_id)
1138 1139 1140
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	u8 msg_data[2];
1141
	int ret;
1142 1143 1144

	memcpy(&msg_data[0], &queue_id, sizeof(queue_id));

1145 1146 1147
	/* disable vf queue before send queue reset msg to PF */
	ret = hclgevf_tqp_enable(hdev, queue_id, 0, false);
	if (ret)
1148
		return ret;
1149

1150 1151
	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_QUEUE_RESET, 0, msg_data,
				    2, true, NULL, 0);
1152 1153
}

1154 1155 1156 1157 1158 1159 1160 1161
static int hclgevf_set_mtu(struct hnae3_handle *handle, int new_mtu)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_MTU, 0, (u8 *)&new_mtu,
				    sizeof(new_mtu), true, NULL, 0);
}

1162 1163 1164 1165 1166
static int hclgevf_notify_client(struct hclgevf_dev *hdev,
				 enum hnae3_reset_notify_type type)
{
	struct hnae3_client *client = hdev->nic_client;
	struct hnae3_handle *handle = &hdev->nic;
1167
	int ret;
1168 1169 1170 1171

	if (!client->ops->reset_notify)
		return -EOPNOTSUPP;

1172 1173 1174 1175 1176 1177
	ret = client->ops->reset_notify(handle, type);
	if (ret)
		dev_err(&hdev->pdev->dev, "notify nic client failed %d(%d)\n",
			type, ret);

	return ret;
1178 1179
}

1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205
static void hclgevf_flr_done(struct hnae3_ae_dev *ae_dev)
{
	struct hclgevf_dev *hdev = ae_dev->priv;

	set_bit(HNAE3_FLR_DONE, &hdev->flr_state);
}

static int hclgevf_flr_poll_timeout(struct hclgevf_dev *hdev,
				    unsigned long delay_us,
				    unsigned long wait_cnt)
{
	unsigned long cnt = 0;

	while (!test_bit(HNAE3_FLR_DONE, &hdev->flr_state) &&
	       cnt++ < wait_cnt)
		usleep_range(delay_us, delay_us * 2);

	if (!test_bit(HNAE3_FLR_DONE, &hdev->flr_state)) {
		dev_err(&hdev->pdev->dev,
			"flr wait timeout\n");
		return -ETIMEDOUT;
	}

	return 0;
}

1206 1207
static int hclgevf_reset_wait(struct hclgevf_dev *hdev)
{
1208 1209 1210 1211 1212 1213 1214
#define HCLGEVF_RESET_WAIT_US	20000
#define HCLGEVF_RESET_WAIT_CNT	2000
#define HCLGEVF_RESET_WAIT_TIMEOUT_US	\
	(HCLGEVF_RESET_WAIT_US * HCLGEVF_RESET_WAIT_CNT)

	u32 val;
	int ret;
1215 1216

	/* wait to check the hardware reset completion status */
1217 1218 1219
	val = hclgevf_read_dev(&hdev->hw, HCLGEVF_RST_ING);
	dev_info(&hdev->pdev->dev, "checking vf resetting status: %x\n", val);

1220 1221 1222 1223 1224
	if (hdev->reset_type == HNAE3_FLR_RESET)
		return hclgevf_flr_poll_timeout(hdev,
						HCLGEVF_RESET_WAIT_US,
						HCLGEVF_RESET_WAIT_CNT);

1225 1226 1227 1228
	ret = readl_poll_timeout(hdev->hw.io_base + HCLGEVF_RST_ING, val,
				 !(val & HCLGEVF_RST_ING_BITS),
				 HCLGEVF_RESET_WAIT_US,
				 HCLGEVF_RESET_WAIT_TIMEOUT_US);
1229 1230

	/* hardware completion status should be available by this time */
1231 1232 1233 1234
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"could'nt get reset done status from h/w, timeout!\n");
		return ret;
1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247
	}

	/* we will wait a bit more to let reset of the stack to complete. This
	 * might happen in case reset assertion was made by PF. Yes, this also
	 * means we might end up waiting bit more even for VF reset.
	 */
	msleep(5000);

	return 0;
}

static int hclgevf_reset_stack(struct hclgevf_dev *hdev)
{
1248 1249
	int ret;

1250
	/* uninitialize the nic client */
1251 1252 1253
	ret = hclgevf_notify_client(hdev, HNAE3_UNINIT_CLIENT);
	if (ret)
		return ret;
1254

1255
	/* re-initialize the hclge device */
1256
	ret = hclgevf_reset_hdev(hdev);
1257 1258 1259 1260 1261
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"hclge device re-init failed, VF is disabled!\n");
		return ret;
	}
1262 1263

	/* bring up the nic client again */
1264 1265 1266
	ret = hclgevf_notify_client(hdev, HNAE3_INIT_CLIENT);
	if (ret)
		return ret;
1267

1268
	return hclgevf_notify_client(hdev, HNAE3_RESTORE_CLIENT);
1269 1270
}

1271 1272 1273 1274 1275 1276 1277 1278 1279
static int hclgevf_reset_prepare_wait(struct hclgevf_dev *hdev)
{
	int ret = 0;

	switch (hdev->reset_type) {
	case HNAE3_VF_FUNC_RESET:
		ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_RESET, 0, NULL,
					   0, true, NULL, sizeof(u8));
		break;
1280 1281 1282
	case HNAE3_FLR_RESET:
		set_bit(HNAE3_FLR_DOWN, &hdev->flr_state);
		break;
1283 1284 1285 1286
	default:
		break;
	}

1287 1288
	set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);

1289 1290 1291 1292 1293 1294
	dev_info(&hdev->pdev->dev, "prepare reset(%d) wait done, ret:%d\n",
		 hdev->reset_type, ret);

	return ret;
}

1295 1296
static int hclgevf_reset(struct hclgevf_dev *hdev)
{
1297
	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(hdev->pdev);
1298 1299
	int ret;

1300 1301 1302 1303
	/* Initialize ae_dev reset status as well, in case enet layer wants to
	 * know if device is undergoing reset
	 */
	ae_dev->reset_type = hdev->reset_type;
1304
	hdev->reset_count++;
1305 1306 1307
	rtnl_lock();

	/* bring down the nic to stop any ongoing TX/RX */
1308 1309 1310
	ret = hclgevf_notify_client(hdev, HNAE3_DOWN_CLIENT);
	if (ret)
		goto err_reset_lock;
1311

1312 1313
	rtnl_unlock();

1314 1315 1316
	ret = hclgevf_reset_prepare_wait(hdev);
	if (ret)
		goto err_reset;
1317

1318 1319 1320 1321 1322 1323 1324 1325 1326
	/* check if VF could successfully fetch the hardware reset completion
	 * status from the hardware
	 */
	ret = hclgevf_reset_wait(hdev);
	if (ret) {
		/* can't do much in this situation, will disable VF */
		dev_err(&hdev->pdev->dev,
			"VF failed(=%d) to fetch H/W reset completion status\n",
			ret);
1327
		goto err_reset;
1328 1329
	}

1330 1331
	rtnl_lock();

1332 1333
	/* now, re-initialize the nic client and ae device*/
	ret = hclgevf_reset_stack(hdev);
1334
	if (ret) {
1335
		dev_err(&hdev->pdev->dev, "failed to reset VF stack\n");
1336 1337
		goto err_reset_lock;
	}
1338 1339

	/* bring up the nic to enable TX/RX again */
1340 1341 1342
	ret = hclgevf_notify_client(hdev, HNAE3_UP_CLIENT);
	if (ret)
		goto err_reset_lock;
1343 1344 1345

	rtnl_unlock();

1346 1347 1348
	hdev->last_reset_time = jiffies;
	ae_dev->reset_type = HNAE3_NONE_RESET;

1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359
	return ret;
err_reset_lock:
	rtnl_unlock();
err_reset:
	/* When VF reset failed, only the higher level reset asserted by PF
	 * can restore it, so re-initialize the command queue to receive
	 * this higher reset event.
	 */
	hclgevf_cmd_init(hdev);
	dev_err(&hdev->pdev->dev, "failed to reset VF\n");

1360 1361 1362
	return ret;
}

1363 1364 1365 1366 1367
static enum hnae3_reset_type hclgevf_get_reset_level(struct hclgevf_dev *hdev,
						     unsigned long *addr)
{
	enum hnae3_reset_type rst_level = HNAE3_NONE_RESET;

1368
	/* return the highest priority reset level amongst all */
1369 1370 1371 1372 1373 1374
	if (test_bit(HNAE3_VF_RESET, addr)) {
		rst_level = HNAE3_VF_RESET;
		clear_bit(HNAE3_VF_RESET, addr);
		clear_bit(HNAE3_VF_PF_FUNC_RESET, addr);
		clear_bit(HNAE3_VF_FUNC_RESET, addr);
	} else if (test_bit(HNAE3_VF_FULL_RESET, addr)) {
1375 1376 1377
		rst_level = HNAE3_VF_FULL_RESET;
		clear_bit(HNAE3_VF_FULL_RESET, addr);
		clear_bit(HNAE3_VF_FUNC_RESET, addr);
1378 1379 1380 1381
	} else if (test_bit(HNAE3_VF_PF_FUNC_RESET, addr)) {
		rst_level = HNAE3_VF_PF_FUNC_RESET;
		clear_bit(HNAE3_VF_PF_FUNC_RESET, addr);
		clear_bit(HNAE3_VF_FUNC_RESET, addr);
1382 1383 1384
	} else if (test_bit(HNAE3_VF_FUNC_RESET, addr)) {
		rst_level = HNAE3_VF_FUNC_RESET;
		clear_bit(HNAE3_VF_FUNC_RESET, addr);
1385 1386 1387
	} else if (test_bit(HNAE3_FLR_RESET, addr)) {
		rst_level = HNAE3_FLR_RESET;
		clear_bit(HNAE3_FLR_RESET, addr);
1388 1389 1390 1391 1392
	}

	return rst_level;
}

1393 1394
static void hclgevf_reset_event(struct pci_dev *pdev,
				struct hnae3_handle *handle)
1395
{
1396 1397
	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev);
	struct hclgevf_dev *hdev = ae_dev->priv;
1398 1399 1400

	dev_info(&hdev->pdev->dev, "received reset request from VF enet\n");

1401
	if (hdev->default_reset_request)
1402
		hdev->reset_level =
1403 1404 1405
			hclgevf_get_reset_level(hdev,
						&hdev->default_reset_request);
	else
1406
		hdev->reset_level = HNAE3_VF_FUNC_RESET;
1407

1408 1409 1410
	/* reset of this VF requested */
	set_bit(HCLGEVF_RESET_REQUESTED, &hdev->reset_state);
	hclgevf_reset_task_schedule(hdev);
1411

1412
	hdev->last_reset_time = jiffies;
1413 1414
}

1415 1416 1417 1418 1419 1420 1421 1422
static void hclgevf_set_def_reset_request(struct hnae3_ae_dev *ae_dev,
					  enum hnae3_reset_type rst_type)
{
	struct hclgevf_dev *hdev = ae_dev->priv;

	set_bit(rst_type, &hdev->default_reset_request);
}

1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443
static void hclgevf_flr_prepare(struct hnae3_ae_dev *ae_dev)
{
#define HCLGEVF_FLR_WAIT_MS	100
#define HCLGEVF_FLR_WAIT_CNT	50
	struct hclgevf_dev *hdev = ae_dev->priv;
	int cnt = 0;

	clear_bit(HNAE3_FLR_DOWN, &hdev->flr_state);
	clear_bit(HNAE3_FLR_DONE, &hdev->flr_state);
	set_bit(HNAE3_FLR_RESET, &hdev->default_reset_request);
	hclgevf_reset_event(hdev->pdev, NULL);

	while (!test_bit(HNAE3_FLR_DOWN, &hdev->flr_state) &&
	       cnt++ < HCLGEVF_FLR_WAIT_CNT)
		msleep(HCLGEVF_FLR_WAIT_MS);

	if (!test_bit(HNAE3_FLR_DOWN, &hdev->flr_state))
		dev_err(&hdev->pdev->dev,
			"flr wait down timeout: %d\n", cnt);
}

1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465
static u32 hclgevf_get_fw_version(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hdev->fw_version;
}

static void hclgevf_get_misc_vector(struct hclgevf_dev *hdev)
{
	struct hclgevf_misc_vector *vector = &hdev->misc_vector;

	vector->vector_irq = pci_irq_vector(hdev->pdev,
					    HCLGEVF_MISC_VECTOR_NUM);
	vector->addr = hdev->hw.io_base + HCLGEVF_MISC_VECTOR_REG_BASE;
	/* vector status always valid for Vector 0 */
	hdev->vector_status[HCLGEVF_MISC_VECTOR_NUM] = 0;
	hdev->vector_irq[HCLGEVF_MISC_VECTOR_NUM] = vector->vector_irq;

	hdev->num_msi_left -= 1;
	hdev->num_msi_used += 1;
}

1466 1467 1468 1469 1470 1471 1472 1473 1474
void hclgevf_reset_task_schedule(struct hclgevf_dev *hdev)
{
	if (!test_bit(HCLGEVF_STATE_RST_SERVICE_SCHED, &hdev->state) &&
	    !test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state)) {
		set_bit(HCLGEVF_STATE_RST_SERVICE_SCHED, &hdev->state);
		schedule_work(&hdev->rst_service_task);
	}
}

1475
void hclgevf_mbx_task_schedule(struct hclgevf_dev *hdev)
1476
{
1477 1478 1479
	if (!test_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state) &&
	    !test_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state)) {
		set_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state);
1480
		schedule_work(&hdev->mbx_service_task);
1481
	}
1482 1483 1484 1485 1486 1487 1488 1489 1490
}

static void hclgevf_task_schedule(struct hclgevf_dev *hdev)
{
	if (!test_bit(HCLGEVF_STATE_DOWN, &hdev->state)  &&
	    !test_and_set_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state))
		schedule_work(&hdev->service_task);
}

1491 1492
static void hclgevf_deferred_task_schedule(struct hclgevf_dev *hdev)
{
1493 1494 1495 1496
	/* if we have any pending mailbox event then schedule the mbx task */
	if (hdev->mbx_event_pending)
		hclgevf_mbx_task_schedule(hdev);

1497 1498 1499 1500
	if (test_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state))
		hclgevf_reset_task_schedule(hdev);
}

1501 1502 1503 1504 1505 1506 1507 1508 1509
static void hclgevf_service_timer(struct timer_list *t)
{
	struct hclgevf_dev *hdev = from_timer(hdev, t, service_timer);

	mod_timer(&hdev->service_timer, jiffies + 5 * HZ);

	hclgevf_task_schedule(hdev);
}

1510 1511 1512 1513
static void hclgevf_reset_service_task(struct work_struct *work)
{
	struct hclgevf_dev *hdev =
		container_of(work, struct hclgevf_dev, rst_service_task);
1514
	int ret;
1515 1516 1517 1518 1519 1520

	if (test_and_set_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state))
		return;

	clear_bit(HCLGEVF_STATE_RST_SERVICE_SCHED, &hdev->state);

1521 1522 1523 1524 1525 1526 1527 1528 1529
	if (test_and_clear_bit(HCLGEVF_RESET_PENDING,
			       &hdev->reset_state)) {
		/* PF has initmated that it is about to reset the hardware.
		 * We now have to poll & check if harware has actually completed
		 * the reset sequence. On hardware reset completion, VF needs to
		 * reset the client and ae device.
		 */
		hdev->reset_attempts = 0;

1530 1531 1532 1533 1534 1535 1536 1537 1538
		hdev->last_reset_time = jiffies;
		while ((hdev->reset_type =
			hclgevf_get_reset_level(hdev, &hdev->reset_pending))
		       != HNAE3_NONE_RESET) {
			ret = hclgevf_reset(hdev);
			if (ret)
				dev_err(&hdev->pdev->dev,
					"VF stack reset failed %d.\n", ret);
		}
1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566
	} else if (test_and_clear_bit(HCLGEVF_RESET_REQUESTED,
				      &hdev->reset_state)) {
		/* we could be here when either of below happens:
		 * 1. reset was initiated due to watchdog timeout due to
		 *    a. IMP was earlier reset and our TX got choked down and
		 *       which resulted in watchdog reacting and inducing VF
		 *       reset. This also means our cmdq would be unreliable.
		 *    b. problem in TX due to other lower layer(example link
		 *       layer not functioning properly etc.)
		 * 2. VF reset might have been initiated due to some config
		 *    change.
		 *
		 * NOTE: Theres no clear way to detect above cases than to react
		 * to the response of PF for this reset request. PF will ack the
		 * 1b and 2. cases but we will not get any intimation about 1a
		 * from PF as cmdq would be in unreliable state i.e. mailbox
		 * communication between PF and VF would be broken.
		 */

		/* if we are never geting into pending state it means either:
		 * 1. PF is not receiving our request which could be due to IMP
		 *    reset
		 * 2. PF is screwed
		 * We cannot do much for 2. but to check first we can try reset
		 * our PCIe + stack and see if it alleviates the problem.
		 */
		if (hdev->reset_attempts > 3) {
			/* prepare for full reset of stack + pcie interface */
1567
			set_bit(HNAE3_VF_FULL_RESET, &hdev->reset_pending);
1568 1569 1570 1571 1572 1573

			/* "defer" schedule the reset task again */
			set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state);
		} else {
			hdev->reset_attempts++;

1574 1575
			set_bit(hdev->reset_level, &hdev->reset_pending);
			set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state);
1576
		}
1577
		hclgevf_reset_task_schedule(hdev);
1578
	}
1579 1580 1581 1582

	clear_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state);
}

1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593
static void hclgevf_mailbox_service_task(struct work_struct *work)
{
	struct hclgevf_dev *hdev;

	hdev = container_of(work, struct hclgevf_dev, mbx_service_task);

	if (test_and_set_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state))
		return;

	clear_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state);

1594
	hclgevf_mbx_async_handler(hdev);
1595 1596 1597 1598

	clear_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state);
}

1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620
static void hclgevf_keep_alive_timer(struct timer_list *t)
{
	struct hclgevf_dev *hdev = from_timer(hdev, t, keep_alive_timer);

	schedule_work(&hdev->keep_alive_task);
	mod_timer(&hdev->keep_alive_timer, jiffies + 2 * HZ);
}

static void hclgevf_keep_alive_task(struct work_struct *work)
{
	struct hclgevf_dev *hdev;
	u8 respmsg;
	int ret;

	hdev = container_of(work, struct hclgevf_dev, keep_alive_task);
	ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_KEEP_ALIVE, 0, NULL,
				   0, false, &respmsg, sizeof(u8));
	if (ret)
		dev_err(&hdev->pdev->dev,
			"VF sends keep alive cmd failed(=%d)\n", ret);
}

1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631
static void hclgevf_service_task(struct work_struct *work)
{
	struct hclgevf_dev *hdev;

	hdev = container_of(work, struct hclgevf_dev, service_task);

	/* request the link status from the PF. PF would be able to tell VF
	 * about such updates in future so we might remove this later
	 */
	hclgevf_request_link_info(hdev);

1632 1633
	hclgevf_deferred_task_schedule(hdev);

1634 1635 1636 1637 1638 1639 1640 1641
	clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state);
}

static void hclgevf_clear_event_cause(struct hclgevf_dev *hdev, u32 regclr)
{
	hclgevf_write_dev(&hdev->hw, HCLGEVF_VECTOR0_CMDQ_SRC_REG, regclr);
}

1642 1643
static enum hclgevf_evt_cause hclgevf_check_evt_cause(struct hclgevf_dev *hdev,
						      u32 *clearval)
1644
{
1645
	u32 cmdq_src_reg, rst_ing_reg;
1646 1647 1648 1649 1650

	/* fetch the events from their corresponding regs */
	cmdq_src_reg = hclgevf_read_dev(&hdev->hw,
					HCLGEVF_VECTOR0_CMDQ_SRC_REG);

1651 1652 1653 1654 1655 1656
	if (BIT(HCLGEVF_VECTOR0_RST_INT_B) & cmdq_src_reg) {
		rst_ing_reg = hclgevf_read_dev(&hdev->hw, HCLGEVF_RST_ING);
		dev_info(&hdev->pdev->dev,
			 "receive reset interrupt 0x%x!\n", rst_ing_reg);
		set_bit(HNAE3_VF_RESET, &hdev->reset_pending);
		set_bit(HCLGEVF_RESET_PENDING, &hdev->reset_state);
1657
		set_bit(HCLGEVF_STATE_CMD_DISABLE, &hdev->state);
1658 1659 1660 1661 1662
		cmdq_src_reg &= ~BIT(HCLGEVF_VECTOR0_RST_INT_B);
		*clearval = cmdq_src_reg;
		return HCLGEVF_VECTOR0_EVENT_RST;
	}

1663 1664 1665 1666
	/* check for vector0 mailbox(=CMDQ RX) event source */
	if (BIT(HCLGEVF_VECTOR0_RX_CMDQ_INT_B) & cmdq_src_reg) {
		cmdq_src_reg &= ~BIT(HCLGEVF_VECTOR0_RX_CMDQ_INT_B);
		*clearval = cmdq_src_reg;
1667
		return HCLGEVF_VECTOR0_EVENT_MBX;
1668 1669 1670 1671
	}

	dev_dbg(&hdev->pdev->dev, "vector 0 interrupt from unknown source\n");

1672
	return HCLGEVF_VECTOR0_EVENT_OTHER;
1673 1674 1675 1676 1677 1678 1679 1680 1681
}

static void hclgevf_enable_vector(struct hclgevf_misc_vector *vector, bool en)
{
	writel(en ? 1 : 0, vector->addr);
}

static irqreturn_t hclgevf_misc_irq_handle(int irq, void *data)
{
1682
	enum hclgevf_evt_cause event_cause;
1683 1684 1685 1686
	struct hclgevf_dev *hdev = data;
	u32 clearval;

	hclgevf_enable_vector(&hdev->misc_vector, false);
1687
	event_cause = hclgevf_check_evt_cause(hdev, &clearval);
1688

1689 1690 1691 1692 1693 1694 1695 1696 1697 1698
	switch (event_cause) {
	case HCLGEVF_VECTOR0_EVENT_RST:
		hclgevf_reset_task_schedule(hdev);
		break;
	case HCLGEVF_VECTOR0_EVENT_MBX:
		hclgevf_mbx_handler(hdev);
		break;
	default:
		break;
	}
1699

1700 1701 1702 1703
	if (event_cause != HCLGEVF_VECTOR0_EVENT_OTHER) {
		hclgevf_clear_event_cause(hdev, clearval);
		hclgevf_enable_vector(&hdev->misc_vector, true);
	}
1704 1705 1706 1707 1708 1709 1710 1711

	return IRQ_HANDLED;
}

static int hclgevf_configure(struct hclgevf_dev *hdev)
{
	int ret;

1712 1713
	hdev->hw.mac.media_type = HNAE3_MEDIA_TYPE_NONE;

1714
	/* get queue configuration from PF */
1715
	ret = hclgevf_get_queue_info(hdev);
1716 1717 1718 1719 1720 1721
	if (ret)
		return ret;
	/* get tc configuration from PF */
	return hclgevf_get_tc_info(hdev);
}

1722 1723 1724
static int hclgevf_alloc_hdev(struct hnae3_ae_dev *ae_dev)
{
	struct pci_dev *pdev = ae_dev->pdev;
1725
	struct hclgevf_dev *hdev;
1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737

	hdev = devm_kzalloc(&pdev->dev, sizeof(*hdev), GFP_KERNEL);
	if (!hdev)
		return -ENOMEM;

	hdev->pdev = pdev;
	hdev->ae_dev = ae_dev;
	ae_dev->priv = hdev;

	return 0;
}

1738 1739 1740 1741 1742
static int hclgevf_init_roce_base_info(struct hclgevf_dev *hdev)
{
	struct hnae3_handle *roce = &hdev->roce;
	struct hnae3_handle *nic = &hdev->nic;

1743
	roce->rinfo.num_vectors = hdev->num_roce_msix;
1744 1745 1746 1747 1748

	if (hdev->num_msi_left < roce->rinfo.num_vectors ||
	    hdev->num_msi_left == 0)
		return -EINVAL;

1749
	roce->rinfo.base_vector = hdev->roce_base_vector;
1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760

	roce->rinfo.netdev = nic->kinfo.netdev;
	roce->rinfo.roce_io_base = hdev->hw.io_base;

	roce->pdev = nic->pdev;
	roce->ae_algo = nic->ae_algo;
	roce->numa_node_mask = nic->numa_node_mask;

	return 0;
}

1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783
static int hclgevf_config_gro(struct hclgevf_dev *hdev, bool en)
{
	struct hclgevf_cfg_gro_status_cmd *req;
	struct hclgevf_desc desc;
	int ret;

	if (!hnae3_dev_gro_supported(hdev))
		return 0;

	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_GRO_GENERIC_CONFIG,
				     false);
	req = (struct hclgevf_cfg_gro_status_cmd *)desc.data;

	req->gro_en = cpu_to_le16(en ? 1 : 0);

	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
	if (ret)
		dev_err(&hdev->pdev->dev,
			"VF GRO hardware config cmd failed, ret = %d.\n", ret);

	return ret;
}

1784 1785 1786 1787 1788 1789 1790
static int hclgevf_rss_init_hw(struct hclgevf_dev *hdev)
{
	struct hclgevf_rss_cfg *rss_cfg = &hdev->rss_cfg;
	int i, ret;

	rss_cfg->rss_size = hdev->rss_size_max;

1791 1792 1793 1794 1795 1796 1797 1798 1799
	if (hdev->pdev->revision >= 0x21) {
		rss_cfg->hash_algo = HCLGEVF_RSS_HASH_ALGO_TOEPLITZ;
		netdev_rss_key_fill(rss_cfg->rss_hash_key,
				    HCLGEVF_RSS_KEY_SIZE);

		ret = hclgevf_set_rss_algo_key(hdev, rss_cfg->hash_algo,
					       rss_cfg->rss_hash_key);
		if (ret)
			return ret;
1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821

		rss_cfg->rss_tuple_sets.ipv4_tcp_en =
					HCLGEVF_RSS_INPUT_TUPLE_OTHER;
		rss_cfg->rss_tuple_sets.ipv4_udp_en =
					HCLGEVF_RSS_INPUT_TUPLE_OTHER;
		rss_cfg->rss_tuple_sets.ipv4_sctp_en =
					HCLGEVF_RSS_INPUT_TUPLE_SCTP;
		rss_cfg->rss_tuple_sets.ipv4_fragment_en =
					HCLGEVF_RSS_INPUT_TUPLE_OTHER;
		rss_cfg->rss_tuple_sets.ipv6_tcp_en =
					HCLGEVF_RSS_INPUT_TUPLE_OTHER;
		rss_cfg->rss_tuple_sets.ipv6_udp_en =
					HCLGEVF_RSS_INPUT_TUPLE_OTHER;
		rss_cfg->rss_tuple_sets.ipv6_sctp_en =
					HCLGEVF_RSS_INPUT_TUPLE_SCTP;
		rss_cfg->rss_tuple_sets.ipv6_fragment_en =
					HCLGEVF_RSS_INPUT_TUPLE_OTHER;

		ret = hclgevf_set_rss_input_tuple(hdev, rss_cfg);
		if (ret)
			return ret;

1822 1823
	}

1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843
	/* Initialize RSS indirect table for each vport */
	for (i = 0; i < HCLGEVF_RSS_IND_TBL_SIZE; i++)
		rss_cfg->rss_indirection_tbl[i] = i % hdev->rss_size_max;

	ret = hclgevf_set_rss_indir_table(hdev);
	if (ret)
		return ret;

	return hclgevf_set_rss_tc_mode(hdev, hdev->rss_size_max);
}

static int hclgevf_init_vlan_config(struct hclgevf_dev *hdev)
{
	/* other vlan config(like, VLAN TX/RX offload) would also be added
	 * here later
	 */
	return hclgevf_set_vlan_filter(&hdev->nic, htons(ETH_P_8021Q), 0,
				       false);
}

1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856
static void hclgevf_set_timer_task(struct hnae3_handle *handle, bool enable)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	if (enable) {
		mod_timer(&hdev->service_timer, jiffies + HZ);
	} else {
		del_timer_sync(&hdev->service_timer);
		cancel_work_sync(&hdev->service_task);
		clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state);
	}
}

1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873
static int hclgevf_ae_start(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	/* reset tqp stats */
	hclgevf_reset_tqp_stats(handle);

	hclgevf_request_link_info(hdev);

	clear_bit(HCLGEVF_STATE_DOWN, &hdev->state);

	return 0;
}

static void hclgevf_ae_stop(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
1874
	int i;
1875

1876 1877
	set_bit(HCLGEVF_STATE_DOWN, &hdev->state);

1878 1879 1880
	for (i = 0; i < handle->kinfo.num_tqps; i++)
		hclgevf_reset_tqp(handle, i);

1881 1882
	/* reset tqp stats */
	hclgevf_reset_tqp_stats(handle);
1883
	hclgevf_update_link_status(hdev, 0);
1884 1885
}

1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917
static int hclgevf_set_alive(struct hnae3_handle *handle, bool alive)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	u8 msg_data;

	msg_data = alive ? 1 : 0;
	return hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_ALIVE,
				    0, &msg_data, 1, false, NULL, 0);
}

static int hclgevf_client_start(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	mod_timer(&hdev->keep_alive_timer, jiffies + 2 * HZ);
	return hclgevf_set_alive(handle, true);
}

static void hclgevf_client_stop(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	int ret;

	ret = hclgevf_set_alive(handle, false);
	if (ret)
		dev_warn(&hdev->pdev->dev,
			 "%s failed %d\n", __func__, ret);

	del_timer_sync(&hdev->keep_alive_timer);
	cancel_work_sync(&hdev->keep_alive_task);
}

1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930
static void hclgevf_state_init(struct hclgevf_dev *hdev)
{
	/* setup tasks for the MBX */
	INIT_WORK(&hdev->mbx_service_task, hclgevf_mailbox_service_task);
	clear_bit(HCLGEVF_STATE_MBX_SERVICE_SCHED, &hdev->state);
	clear_bit(HCLGEVF_STATE_MBX_HANDLING, &hdev->state);

	/* setup tasks for service timer */
	timer_setup(&hdev->service_timer, hclgevf_service_timer, 0);

	INIT_WORK(&hdev->service_task, hclgevf_service_task);
	clear_bit(HCLGEVF_STATE_SERVICE_SCHED, &hdev->state);

1931 1932
	INIT_WORK(&hdev->rst_service_task, hclgevf_reset_service_task);

1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
	mutex_init(&hdev->mbx_resp.mbx_mutex);

	/* bring the device down */
	set_bit(HCLGEVF_STATE_DOWN, &hdev->state);
}

static void hclgevf_state_uninit(struct hclgevf_dev *hdev)
{
	set_bit(HCLGEVF_STATE_DOWN, &hdev->state);

	if (hdev->service_timer.function)
		del_timer_sync(&hdev->service_timer);
	if (hdev->service_task.func)
		cancel_work_sync(&hdev->service_task);
	if (hdev->mbx_service_task.func)
		cancel_work_sync(&hdev->mbx_service_task);
1949 1950
	if (hdev->rst_service_task.func)
		cancel_work_sync(&hdev->rst_service_task);
1951 1952 1953 1954 1955 1956 1957 1958 1959 1960

	mutex_destroy(&hdev->mbx_resp.mbx_mutex);
}

static int hclgevf_init_msi(struct hclgevf_dev *hdev)
{
	struct pci_dev *pdev = hdev->pdev;
	int vectors;
	int i;

1961 1962 1963 1964 1965 1966 1967 1968
	if (hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B))
		vectors = pci_alloc_irq_vectors(pdev,
						hdev->roce_base_msix_offset + 1,
						hdev->num_msi,
						PCI_IRQ_MSIX);
	else
		vectors = pci_alloc_irq_vectors(pdev, 1, hdev->num_msi,
						PCI_IRQ_MSI | PCI_IRQ_MSIX);
1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983

	if (vectors < 0) {
		dev_err(&pdev->dev,
			"failed(%d) to allocate MSI/MSI-X vectors\n",
			vectors);
		return vectors;
	}
	if (vectors < hdev->num_msi)
		dev_warn(&hdev->pdev->dev,
			 "requested %d MSI/MSI-X, but allocated %d MSI/MSI-X\n",
			 hdev->num_msi, vectors);

	hdev->num_msi = vectors;
	hdev->num_msi_left = vectors;
	hdev->base_msi_vector = pdev->irq;
1984
	hdev->roce_base_vector = pdev->irq + hdev->roce_base_msix_offset;
1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998

	hdev->vector_status = devm_kcalloc(&pdev->dev, hdev->num_msi,
					   sizeof(u16), GFP_KERNEL);
	if (!hdev->vector_status) {
		pci_free_irq_vectors(pdev);
		return -ENOMEM;
	}

	for (i = 0; i < hdev->num_msi; i++)
		hdev->vector_status[i] = HCLGEVF_INVALID_VPORT;

	hdev->vector_irq = devm_kcalloc(&pdev->dev, hdev->num_msi,
					sizeof(int), GFP_KERNEL);
	if (!hdev->vector_irq) {
1999
		devm_kfree(&pdev->dev, hdev->vector_status);
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
		pci_free_irq_vectors(pdev);
		return -ENOMEM;
	}

	return 0;
}

static void hclgevf_uninit_msi(struct hclgevf_dev *hdev)
{
	struct pci_dev *pdev = hdev->pdev;

2011 2012
	devm_kfree(&pdev->dev, hdev->vector_status);
	devm_kfree(&pdev->dev, hdev->vector_irq);
2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
	pci_free_irq_vectors(pdev);
}

static int hclgevf_misc_irq_init(struct hclgevf_dev *hdev)
{
	int ret = 0;

	hclgevf_get_misc_vector(hdev);

	ret = request_irq(hdev->misc_vector.vector_irq, hclgevf_misc_irq_handle,
			  0, "hclgevf_cmd", hdev);
	if (ret) {
		dev_err(&hdev->pdev->dev, "VF failed to request misc irq(%d)\n",
			hdev->misc_vector.vector_irq);
		return ret;
	}

2030 2031
	hclgevf_clear_event_cause(hdev, 0);

2032 2033 2034 2035 2036 2037 2038 2039 2040 2041
	/* enable misc. vector(vector 0) */
	hclgevf_enable_vector(&hdev->misc_vector, true);

	return ret;
}

static void hclgevf_misc_irq_uninit(struct hclgevf_dev *hdev)
{
	/* disable misc vector(vector 0) */
	hclgevf_enable_vector(&hdev->misc_vector, false);
2042
	synchronize_irq(hdev->misc_vector.vector_irq);
2043 2044 2045 2046
	free_irq(hdev->misc_vector.vector_irq, hdev);
	hclgevf_free_vector(hdev, 0);
}

2047 2048
static int hclgevf_init_client_instance(struct hnae3_client *client,
					struct hnae3_ae_dev *ae_dev)
2049
{
2050
	struct hclgevf_dev *hdev = ae_dev->priv;
2051 2052 2053 2054 2055 2056 2057 2058 2059
	int ret;

	switch (client->type) {
	case HNAE3_CLIENT_KNIC:
		hdev->nic_client = client;
		hdev->nic.client = client;

		ret = client->ops->init_instance(&hdev->nic);
		if (ret)
2060
			goto clear_nic;
2061

2062 2063
		hnae3_set_client_init_flag(client, ae_dev, 1);

2064 2065 2066 2067 2068
		if (hdev->roce_client && hnae3_dev_roce_supported(hdev)) {
			struct hnae3_client *rc = hdev->roce_client;

			ret = hclgevf_init_roce_base_info(hdev);
			if (ret)
2069
				goto clear_roce;
2070 2071
			ret = rc->ops->init_instance(&hdev->roce);
			if (ret)
2072
				goto clear_roce;
2073 2074 2075

			hnae3_set_client_init_flag(hdev->roce_client, ae_dev,
						   1);
2076 2077 2078 2079 2080 2081 2082 2083
		}
		break;
	case HNAE3_CLIENT_UNIC:
		hdev->nic_client = client;
		hdev->nic.client = client;

		ret = client->ops->init_instance(&hdev->nic);
		if (ret)
2084
			goto clear_nic;
2085 2086

		hnae3_set_client_init_flag(client, ae_dev, 1);
2087 2088
		break;
	case HNAE3_CLIENT_ROCE:
2089 2090 2091 2092
		if (hnae3_dev_roce_supported(hdev)) {
			hdev->roce_client = client;
			hdev->roce.client = client;
		}
2093

2094
		if (hdev->roce_client && hdev->nic_client) {
2095 2096
			ret = hclgevf_init_roce_base_info(hdev);
			if (ret)
2097
				goto clear_roce;
2098 2099 2100

			ret = client->ops->init_instance(&hdev->roce);
			if (ret)
2101
				goto clear_roce;
2102
		}
2103 2104

		hnae3_set_client_init_flag(client, ae_dev, 1);
2105 2106 2107
		break;
	default:
		return -EINVAL;
2108 2109 2110
	}

	return 0;
2111 2112 2113 2114 2115 2116 2117 2118 2119

clear_nic:
	hdev->nic_client = NULL;
	hdev->nic.client = NULL;
	return ret;
clear_roce:
	hdev->roce_client = NULL;
	hdev->roce.client = NULL;
	return ret;
2120 2121
}

2122 2123
static void hclgevf_uninit_client_instance(struct hnae3_client *client,
					   struct hnae3_ae_dev *ae_dev)
2124
{
2125 2126
	struct hclgevf_dev *hdev = ae_dev->priv;

2127
	/* un-init roce, if it exists */
2128
	if (hdev->roce_client) {
2129
		hdev->roce_client->ops->uninit_instance(&hdev->roce, 0);
2130 2131 2132
		hdev->roce_client = NULL;
		hdev->roce.client = NULL;
	}
2133 2134

	/* un-init nic/unic, if this was not called by roce client */
2135 2136
	if (client->ops->uninit_instance && hdev->nic_client &&
	    client->type != HNAE3_CLIENT_ROCE) {
2137
		client->ops->uninit_instance(&hdev->nic, 0);
2138 2139 2140
		hdev->nic_client = NULL;
		hdev->nic.client = NULL;
	}
2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151
}

static int hclgevf_pci_init(struct hclgevf_dev *hdev)
{
	struct pci_dev *pdev = hdev->pdev;
	struct hclgevf_hw *hw;
	int ret;

	ret = pci_enable_device(pdev);
	if (ret) {
		dev_err(&pdev->dev, "failed to enable PCI device\n");
2152
		return ret;
2153 2154 2155 2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169
	}

	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
	if (ret) {
		dev_err(&pdev->dev, "can't set consistent PCI DMA, exiting");
		goto err_disable_device;
	}

	ret = pci_request_regions(pdev, HCLGEVF_DRIVER_NAME);
	if (ret) {
		dev_err(&pdev->dev, "PCI request regions failed %d\n", ret);
		goto err_disable_device;
	}

	pci_set_master(pdev);
	hw = &hdev->hw;
	hw->hdev = hdev;
P
Peng Li 已提交
2170
	hw->io_base = pci_iomap(pdev, 2, 0);
2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181 2182 2183
	if (!hw->io_base) {
		dev_err(&pdev->dev, "can't map configuration register space\n");
		ret = -ENOMEM;
		goto err_clr_master;
	}

	return 0;

err_clr_master:
	pci_clear_master(pdev);
	pci_release_regions(pdev);
err_disable_device:
	pci_disable_device(pdev);
2184

2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197
	return ret;
}

static void hclgevf_pci_uninit(struct hclgevf_dev *hdev)
{
	struct pci_dev *pdev = hdev->pdev;

	pci_iounmap(pdev, hdev->hw.io_base);
	pci_clear_master(pdev);
	pci_release_regions(pdev);
	pci_disable_device(pdev);
}

2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236
static int hclgevf_query_vf_resource(struct hclgevf_dev *hdev)
{
	struct hclgevf_query_res_cmd *req;
	struct hclgevf_desc desc;
	int ret;

	hclgevf_cmd_setup_basic_desc(&desc, HCLGEVF_OPC_QUERY_VF_RSRC, true);
	ret = hclgevf_cmd_send(&hdev->hw, &desc, 1);
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"query vf resource failed, ret = %d.\n", ret);
		return ret;
	}

	req = (struct hclgevf_query_res_cmd *)desc.data;

	if (hnae3_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B)) {
		hdev->roce_base_msix_offset =
		hnae3_get_field(__le16_to_cpu(req->msixcap_localid_ba_rocee),
				HCLGEVF_MSIX_OFT_ROCEE_M,
				HCLGEVF_MSIX_OFT_ROCEE_S);
		hdev->num_roce_msix =
		hnae3_get_field(__le16_to_cpu(req->vf_intr_vector_number),
				HCLGEVF_VEC_NUM_M, HCLGEVF_VEC_NUM_S);

		/* VF should have NIC vectors and Roce vectors, NIC vectors
		 * are queued before Roce vectors. The offset is fixed to 64.
		 */
		hdev->num_msi = hdev->num_roce_msix +
				hdev->roce_base_msix_offset;
	} else {
		hdev->num_msi =
		hnae3_get_field(__le16_to_cpu(req->vf_intr_vector_number),
				HCLGEVF_VEC_NUM_M, HCLGEVF_VEC_NUM_S);
	}

	return 0;
}

2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271
static int hclgevf_pci_reset(struct hclgevf_dev *hdev)
{
	struct pci_dev *pdev = hdev->pdev;
	int ret = 0;

	if (hdev->reset_type == HNAE3_VF_FULL_RESET &&
	    test_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state)) {
		hclgevf_misc_irq_uninit(hdev);
		hclgevf_uninit_msi(hdev);
		clear_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state);
	}

	if (!test_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state)) {
		pci_set_master(pdev);
		ret = hclgevf_init_msi(hdev);
		if (ret) {
			dev_err(&pdev->dev,
				"failed(%d) to init MSI/MSI-X\n", ret);
			return ret;
		}

		ret = hclgevf_misc_irq_init(hdev);
		if (ret) {
			hclgevf_uninit_msi(hdev);
			dev_err(&pdev->dev, "failed(%d) to init Misc IRQ(vector0)\n",
				ret);
			return ret;
		}

		set_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state);
	}

	return ret;
}

2272
static int hclgevf_reset_hdev(struct hclgevf_dev *hdev)
2273
{
2274
	struct pci_dev *pdev = hdev->pdev;
2275 2276
	int ret;

2277 2278 2279 2280 2281 2282
	ret = hclgevf_pci_reset(hdev);
	if (ret) {
		dev_err(&pdev->dev, "pci reset failed %d\n", ret);
		return ret;
	}

2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295
	ret = hclgevf_cmd_init(hdev);
	if (ret) {
		dev_err(&pdev->dev, "cmd failed %d\n", ret);
		return ret;
	}

	ret = hclgevf_rss_init_hw(hdev);
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"failed(%d) to initialize RSS\n", ret);
		return ret;
	}

2296 2297 2298 2299
	ret = hclgevf_config_gro(hdev, true);
	if (ret)
		return ret;

2300 2301 2302 2303 2304
	ret = hclgevf_init_vlan_config(hdev);
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"failed(%d) to initialize VLAN config\n", ret);
		return ret;
2305
	}
2306

2307 2308 2309 2310 2311 2312 2313 2314 2315 2316
	dev_info(&hdev->pdev->dev, "Reset done\n");

	return 0;
}

static int hclgevf_init_hdev(struct hclgevf_dev *hdev)
{
	struct pci_dev *pdev = hdev->pdev;
	int ret;

2317 2318 2319 2320 2321 2322
	ret = hclgevf_pci_init(hdev);
	if (ret) {
		dev_err(&pdev->dev, "PCI initialization failed\n");
		return ret;
	}

2323 2324 2325 2326 2327 2328
	ret = hclgevf_cmd_queue_init(hdev);
	if (ret) {
		dev_err(&pdev->dev, "Cmd queue init failed: %d\n", ret);
		goto err_cmd_queue_init;
	}

2329 2330 2331 2332 2333 2334 2335 2336 2337
	ret = hclgevf_cmd_init(hdev);
	if (ret)
		goto err_cmd_init;

	/* Get vf resource */
	ret = hclgevf_query_vf_resource(hdev);
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"Query vf status error, ret = %d.\n", ret);
2338
		goto err_cmd_init;
2339 2340
	}

2341 2342 2343
	ret = hclgevf_init_msi(hdev);
	if (ret) {
		dev_err(&pdev->dev, "failed(%d) to init MSI/MSI-X\n", ret);
2344
		goto err_cmd_init;
2345 2346 2347
	}

	hclgevf_state_init(hdev);
2348
	hdev->reset_level = HNAE3_VF_FUNC_RESET;
2349 2350 2351 2352 2353 2354 2355 2356

	ret = hclgevf_misc_irq_init(hdev);
	if (ret) {
		dev_err(&pdev->dev, "failed(%d) to init Misc IRQ(vector0)\n",
			ret);
		goto err_misc_irq_init;
	}

2357 2358
	set_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state);

2359 2360 2361 2362 2363 2364 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376
	ret = hclgevf_configure(hdev);
	if (ret) {
		dev_err(&pdev->dev, "failed(%d) to fetch configuration\n", ret);
		goto err_config;
	}

	ret = hclgevf_alloc_tqps(hdev);
	if (ret) {
		dev_err(&pdev->dev, "failed(%d) to allocate TQPs\n", ret);
		goto err_config;
	}

	ret = hclgevf_set_handle_info(hdev);
	if (ret) {
		dev_err(&pdev->dev, "failed(%d) to set handle info\n", ret);
		goto err_config;
	}

2377 2378 2379 2380
	ret = hclgevf_config_gro(hdev, true);
	if (ret)
		goto err_config;

2381 2382 2383 2384 2385 2386 2387 2388 2389
	/* vf is not allowed to enable unicast/multicast promisc mode.
	 * For revision 0x20, default to disable broadcast promisc mode,
	 * firmware makes sure broadcast packets can be accepted.
	 * For revision 0x21, default to enable broadcast promisc mode.
	 */
	ret = hclgevf_set_promisc_mode(hdev, true);
	if (ret)
		goto err_config;

2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400 2401 2402 2403 2404
	/* Initialize RSS for this VF */
	ret = hclgevf_rss_init_hw(hdev);
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"failed(%d) to initialize RSS\n", ret);
		goto err_config;
	}

	ret = hclgevf_init_vlan_config(hdev);
	if (ret) {
		dev_err(&hdev->pdev->dev,
			"failed(%d) to initialize VLAN config\n", ret);
		goto err_config;
	}

2405
	hdev->last_reset_time = jiffies;
2406 2407 2408 2409 2410 2411 2412 2413 2414
	pr_info("finished initializing %s driver\n", HCLGEVF_DRIVER_NAME);

	return 0;

err_config:
	hclgevf_misc_irq_uninit(hdev);
err_misc_irq_init:
	hclgevf_state_uninit(hdev);
	hclgevf_uninit_msi(hdev);
2415
err_cmd_init:
2416 2417
	hclgevf_cmd_uninit(hdev);
err_cmd_queue_init:
2418
	hclgevf_pci_uninit(hdev);
2419
	clear_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state);
2420 2421 2422
	return ret;
}

2423
static void hclgevf_uninit_hdev(struct hclgevf_dev *hdev)
2424 2425
{
	hclgevf_state_uninit(hdev);
2426 2427 2428 2429 2430 2431

	if (test_bit(HCLGEVF_STATE_IRQ_INITED, &hdev->state)) {
		hclgevf_misc_irq_uninit(hdev);
		hclgevf_uninit_msi(hdev);
	}

2432
	hclgevf_pci_uninit(hdev);
2433
	hclgevf_cmd_uninit(hdev);
2434 2435 2436 2437 2438
}

static int hclgevf_init_ae_dev(struct hnae3_ae_dev *ae_dev)
{
	struct pci_dev *pdev = ae_dev->pdev;
2439
	struct hclgevf_dev *hdev;
2440 2441 2442 2443 2444 2445 2446 2447 2448
	int ret;

	ret = hclgevf_alloc_hdev(ae_dev);
	if (ret) {
		dev_err(&pdev->dev, "hclge device allocation failed\n");
		return ret;
	}

	ret = hclgevf_init_hdev(ae_dev->priv);
2449
	if (ret) {
2450
		dev_err(&pdev->dev, "hclge device initialization failed\n");
2451 2452
		return ret;
	}
2453

2454 2455 2456 2457 2458
	hdev = ae_dev->priv;
	timer_setup(&hdev->keep_alive_timer, hclgevf_keep_alive_timer, 0);
	INIT_WORK(&hdev->keep_alive_task, hclgevf_keep_alive_task);

	return 0;
2459 2460 2461 2462 2463 2464 2465
}

static void hclgevf_uninit_ae_dev(struct hnae3_ae_dev *ae_dev)
{
	struct hclgevf_dev *hdev = ae_dev->priv;

	hclgevf_uninit_hdev(hdev);
2466 2467 2468
	ae_dev->priv = NULL;
}

2469 2470 2471 2472 2473
static u32 hclgevf_get_max_channels(struct hclgevf_dev *hdev)
{
	struct hnae3_handle *nic = &hdev->nic;
	struct hnae3_knic_private_info *kinfo = &nic->kinfo;

2474 2475
	return min_t(u32, hdev->rss_size_max,
		     hdev->num_tqps / kinfo->num_tc);
2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 2494 2495
}

/**
 * hclgevf_get_channels - Get the current channels enabled and max supported.
 * @handle: hardware information for network interface
 * @ch: ethtool channels structure
 *
 * We don't support separate tx and rx queues as channels. The other count
 * represents how many queues are being used for control. max_combined counts
 * how many queue pairs we can support. They may not be mapped 1 to 1 with
 * q_vectors since we support a lot more queue pairs than q_vectors.
 **/
static void hclgevf_get_channels(struct hnae3_handle *handle,
				 struct ethtool_channels *ch)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	ch->max_combined = hclgevf_get_max_channels(hdev);
	ch->other_count = 0;
	ch->max_other = 0;
2496
	ch->combined_count = handle->kinfo.rss_size;
2497 2498
}

2499
static void hclgevf_get_tqps_and_rss_info(struct hnae3_handle *handle,
2500
					  u16 *alloc_tqps, u16 *max_rss_size)
2501 2502 2503
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

2504
	*alloc_tqps = hdev->num_tqps;
2505 2506 2507
	*max_rss_size = hdev->rss_size_max;
}

2508 2509 2510 2511 2512 2513 2514
static int hclgevf_get_status(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hdev->hw.mac.link;
}

2515 2516 2517 2518 2519 2520 2521 2522 2523 2524 2525 2526 2527 2528 2529 2530 2531 2532 2533 2534 2535
static void hclgevf_get_ksettings_an_result(struct hnae3_handle *handle,
					    u8 *auto_neg, u32 *speed,
					    u8 *duplex)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	if (speed)
		*speed = hdev->hw.mac.speed;
	if (duplex)
		*duplex = hdev->hw.mac.duplex;
	if (auto_neg)
		*auto_neg = AUTONEG_DISABLE;
}

void hclgevf_update_speed_duplex(struct hclgevf_dev *hdev, u32 speed,
				 u8 duplex)
{
	hdev->hw.mac.speed = speed;
	hdev->hw.mac.duplex = duplex;
}

2536 2537 2538 2539 2540 2541 2542
static int hclgevf_gro_en(struct hnae3_handle *handle, int enable)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hclgevf_config_gro(hdev, enable);
}

2543 2544 2545 2546 2547 2548 2549 2550
static void hclgevf_get_media_type(struct hnae3_handle *handle,
				  u8 *media_type)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	if (media_type)
		*media_type = hdev->hw.mac.media_type;
}

2551 2552 2553 2554
static bool hclgevf_get_hw_reset_stat(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

2555
	return !!hclgevf_read_dev(&hdev->hw, HCLGEVF_RST_ING);
2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 2571
}

static bool hclgevf_ae_dev_resetting(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state);
}

static unsigned long hclgevf_ae_dev_reset_cnt(struct hnae3_handle *handle)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	return hdev->reset_count;
}

2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603 2604 2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637
#define MAX_SEPARATE_NUM	4
#define SEPARATOR_VALUE		0xFFFFFFFF
#define REG_NUM_PER_LINE	4
#define REG_LEN_PER_LINE	(REG_NUM_PER_LINE * sizeof(u32))

static int hclgevf_get_regs_len(struct hnae3_handle *handle)
{
	int cmdq_lines, common_lines, ring_lines, tqp_intr_lines;
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);

	cmdq_lines = sizeof(cmdq_reg_addr_list) / REG_LEN_PER_LINE + 1;
	common_lines = sizeof(common_reg_addr_list) / REG_LEN_PER_LINE + 1;
	ring_lines = sizeof(ring_reg_addr_list) / REG_LEN_PER_LINE + 1;
	tqp_intr_lines = sizeof(tqp_intr_reg_addr_list) / REG_LEN_PER_LINE + 1;

	return (cmdq_lines + common_lines + ring_lines * hdev->num_tqps +
		tqp_intr_lines * (hdev->num_msi_used - 1)) * REG_LEN_PER_LINE;
}

static void hclgevf_get_regs(struct hnae3_handle *handle, u32 *version,
			     void *data)
{
	struct hclgevf_dev *hdev = hclgevf_ae_get_hdev(handle);
	int i, j, reg_um, separator_num;
	u32 *reg = data;

	*version = hdev->fw_version;

	/* fetching per-VF registers values from VF PCIe register space */
	reg_um = sizeof(cmdq_reg_addr_list) / sizeof(u32);
	separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
	for (i = 0; i < reg_um; i++)
		*reg++ = hclgevf_read_dev(&hdev->hw, cmdq_reg_addr_list[i]);
	for (i = 0; i < separator_num; i++)
		*reg++ = SEPARATOR_VALUE;

	reg_um = sizeof(common_reg_addr_list) / sizeof(u32);
	separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
	for (i = 0; i < reg_um; i++)
		*reg++ = hclgevf_read_dev(&hdev->hw, common_reg_addr_list[i]);
	for (i = 0; i < separator_num; i++)
		*reg++ = SEPARATOR_VALUE;

	reg_um = sizeof(ring_reg_addr_list) / sizeof(u32);
	separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
	for (j = 0; j < hdev->num_tqps; j++) {
		for (i = 0; i < reg_um; i++)
			*reg++ = hclgevf_read_dev(&hdev->hw,
						  ring_reg_addr_list[i] +
						  0x200 * j);
		for (i = 0; i < separator_num; i++)
			*reg++ = SEPARATOR_VALUE;
	}

	reg_um = sizeof(tqp_intr_reg_addr_list) / sizeof(u32);
	separator_num = MAX_SEPARATE_NUM - reg_um % REG_NUM_PER_LINE;
	for (j = 0; j < hdev->num_msi_used - 1; j++) {
		for (i = 0; i < reg_um; i++)
			*reg++ = hclgevf_read_dev(&hdev->hw,
						  tqp_intr_reg_addr_list[i] +
						  4 * j);
		for (i = 0; i < separator_num; i++)
			*reg++ = SEPARATOR_VALUE;
	}
}

2638 2639 2640
static const struct hnae3_ae_ops hclgevf_ops = {
	.init_ae_dev = hclgevf_init_ae_dev,
	.uninit_ae_dev = hclgevf_uninit_ae_dev,
2641 2642
	.flr_prepare = hclgevf_flr_prepare,
	.flr_done = hclgevf_flr_done,
2643 2644
	.init_client_instance = hclgevf_init_client_instance,
	.uninit_client_instance = hclgevf_uninit_client_instance,
2645 2646
	.start = hclgevf_ae_start,
	.stop = hclgevf_ae_stop,
2647 2648
	.client_start = hclgevf_client_start,
	.client_stop = hclgevf_client_stop,
2649 2650 2651
	.map_ring_to_vector = hclgevf_map_ring_to_vector,
	.unmap_ring_from_vector = hclgevf_unmap_ring_from_vector,
	.get_vector = hclgevf_get_vector,
2652
	.put_vector = hclgevf_put_vector,
2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667
	.reset_queue = hclgevf_reset_tqp,
	.get_mac_addr = hclgevf_get_mac_addr,
	.set_mac_addr = hclgevf_set_mac_addr,
	.add_uc_addr = hclgevf_add_uc_addr,
	.rm_uc_addr = hclgevf_rm_uc_addr,
	.add_mc_addr = hclgevf_add_mc_addr,
	.rm_mc_addr = hclgevf_rm_mc_addr,
	.get_stats = hclgevf_get_stats,
	.update_stats = hclgevf_update_stats,
	.get_strings = hclgevf_get_strings,
	.get_sset_count = hclgevf_get_sset_count,
	.get_rss_key_size = hclgevf_get_rss_key_size,
	.get_rss_indir_size = hclgevf_get_rss_indir_size,
	.get_rss = hclgevf_get_rss,
	.set_rss = hclgevf_set_rss,
2668 2669
	.get_rss_tuple = hclgevf_get_rss_tuple,
	.set_rss_tuple = hclgevf_set_rss_tuple,
2670 2671 2672
	.get_tc_size = hclgevf_get_tc_size,
	.get_fw_version = hclgevf_get_fw_version,
	.set_vlan_filter = hclgevf_set_vlan_filter,
2673
	.enable_hw_strip_rxvtag = hclgevf_en_hw_strip_rxvtag,
2674
	.reset_event = hclgevf_reset_event,
2675
	.set_default_reset_request = hclgevf_set_def_reset_request,
2676
	.get_channels = hclgevf_get_channels,
2677
	.get_tqps_and_rss_info = hclgevf_get_tqps_and_rss_info,
2678 2679
	.get_regs_len = hclgevf_get_regs_len,
	.get_regs = hclgevf_get_regs,
2680
	.get_status = hclgevf_get_status,
2681
	.get_ksettings_an_result = hclgevf_get_ksettings_an_result,
2682
	.get_media_type = hclgevf_get_media_type,
2683 2684 2685
	.get_hw_reset_stat = hclgevf_get_hw_reset_stat,
	.ae_dev_resetting = hclgevf_ae_dev_resetting,
	.ae_dev_reset_cnt = hclgevf_ae_dev_reset_cnt,
2686
	.set_gro_en = hclgevf_gro_en,
2687
	.set_mtu = hclgevf_set_mtu,
2688
	.get_global_queue_id = hclgevf_get_qid_global,
2689
	.set_timer_task = hclgevf_set_timer_task,
2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700
};

static struct hnae3_ae_algo ae_algovf = {
	.ops = &hclgevf_ops,
	.pdev_id_table = ae_algovf_pci_tbl,
};

static int hclgevf_init(void)
{
	pr_info("%s is initializing\n", HCLGEVF_NAME);

2701 2702 2703
	hnae3_register_ae_algo(&ae_algovf);

	return 0;
2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716
}

static void hclgevf_exit(void)
{
	hnae3_unregister_ae_algo(&ae_algovf);
}
module_init(hclgevf_init);
module_exit(hclgevf_exit);

MODULE_LICENSE("GPL");
MODULE_AUTHOR("Huawei Tech. Co., Ltd.");
MODULE_DESCRIPTION("HCLGEVF Driver");
MODULE_VERSION(HCLGEVF_MOD_VERSION);