hns_dsaf_ppe.c 17.9 KB
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/*
 * Copyright (c) 2014-2015 Hisilicon Limited.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>

#include "hns_dsaf_ppe.h"

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void hns_ppe_set_tso_enable(struct hns_ppe_cb *ppe_cb, u32 value)
{
	dsaf_set_dev_bit(ppe_cb, PPEV2_CFG_TSO_EN_REG, 0, !!value);
}

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void hns_ppe_set_rss_key(struct hns_ppe_cb *ppe_cb,
			 const u32 rss_key[HNS_PPEV2_RSS_KEY_NUM])
{
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	u32 key_item;
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	for (key_item = 0; key_item < HNS_PPEV2_RSS_KEY_NUM; key_item++)
		dsaf_write_dev(ppe_cb, PPEV2_RSS_KEY_REG + key_item * 0x4,
			       rss_key[key_item]);
}

void hns_ppe_set_indir_table(struct hns_ppe_cb *ppe_cb,
			     const u32 rss_tab[HNS_PPEV2_RSS_IND_TBL_SIZE])
{
	int i;
	int reg_value;

	for (i = 0; i < (HNS_PPEV2_RSS_IND_TBL_SIZE / 4); i++) {
		reg_value = dsaf_read_dev(ppe_cb,
					  PPEV2_INDRECTION_TBL_REG + i * 0x4);

		dsaf_set_field(reg_value, PPEV2_CFG_RSS_TBL_4N0_M,
			       PPEV2_CFG_RSS_TBL_4N0_S,
			       rss_tab[i * 4 + 0] & 0x1F);
		dsaf_set_field(reg_value, PPEV2_CFG_RSS_TBL_4N1_M,
			       PPEV2_CFG_RSS_TBL_4N1_S,
				rss_tab[i * 4 + 1] & 0x1F);
		dsaf_set_field(reg_value, PPEV2_CFG_RSS_TBL_4N2_M,
			       PPEV2_CFG_RSS_TBL_4N2_S,
				rss_tab[i * 4 + 2] & 0x1F);
		dsaf_set_field(reg_value, PPEV2_CFG_RSS_TBL_4N3_M,
			       PPEV2_CFG_RSS_TBL_4N3_S,
				rss_tab[i * 4 + 3] & 0x1F);
		dsaf_write_dev(
			ppe_cb, PPEV2_INDRECTION_TBL_REG + i * 0x4, reg_value);
	}
}

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static void __iomem *
hns_ppe_common_get_ioaddr(struct ppe_common_cb *ppe_common)
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{
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	return ppe_common->dsaf_dev->ppe_base + PPE_COMMON_REG_OFFSET;
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}

/**
 * hns_ppe_common_get_cfg - get ppe common config
 * @dsaf_dev: dasf device
 * comm_index: common index
 * retuen 0 - success , negative --fail
 */
int hns_ppe_common_get_cfg(struct dsaf_device *dsaf_dev, int comm_index)
{
	struct ppe_common_cb *ppe_common;
	int ppe_num;

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	if (!HNS_DSAF_IS_DEBUG(dsaf_dev))
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		ppe_num = HNS_PPE_SERVICE_NW_ENGINE_NUM;
	else
		ppe_num = HNS_PPE_DEBUG_NW_ENGINE_NUM;

	ppe_common = devm_kzalloc(dsaf_dev->dev, sizeof(*ppe_common) +
		ppe_num * sizeof(struct hns_ppe_cb), GFP_KERNEL);
	if (!ppe_common)
		return -ENOMEM;

	ppe_common->ppe_num = ppe_num;
	ppe_common->dsaf_dev = dsaf_dev;
	ppe_common->comm_index = comm_index;
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	if (!HNS_DSAF_IS_DEBUG(dsaf_dev))
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		ppe_common->ppe_mode = PPE_COMMON_MODE_SERVICE;
	else
		ppe_common->ppe_mode = PPE_COMMON_MODE_DEBUG;
	ppe_common->dev = dsaf_dev->dev;

	ppe_common->io_base = hns_ppe_common_get_ioaddr(ppe_common);

	dsaf_dev->ppe_common[comm_index] = ppe_common;

	return 0;
}

void hns_ppe_common_free_cfg(struct dsaf_device *dsaf_dev, u32 comm_index)
{
	dsaf_dev->ppe_common[comm_index] = NULL;
}

static void __iomem *hns_ppe_get_iobase(struct ppe_common_cb *ppe_common,
					int ppe_idx)
{
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	return ppe_common->dsaf_dev->ppe_base + ppe_idx * PPE_REG_OFFSET;
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}

static void hns_ppe_get_cfg(struct ppe_common_cb *ppe_common)
{
	u32 i;
	struct hns_ppe_cb *ppe_cb;
	u32 ppe_num = ppe_common->ppe_num;

	for (i = 0; i < ppe_num; i++) {
		ppe_cb = &ppe_common->ppe_cb[i];
		ppe_cb->dev = ppe_common->dev;
		ppe_cb->next = NULL;
		ppe_cb->ppe_common_cb = ppe_common;
		ppe_cb->index = i;
		ppe_cb->io_base = hns_ppe_get_iobase(ppe_common, i);
		ppe_cb->virq = 0;
	}
}

static void hns_ppe_cnt_clr_ce(struct hns_ppe_cb *ppe_cb)
{
	dsaf_set_dev_bit(ppe_cb, PPE_TNL_0_5_CNT_CLR_CE_REG,
			 PPE_CNT_CLR_CE_B, 1);
}

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static void hns_ppe_set_vlan_strip(struct hns_ppe_cb *ppe_cb, int en)
{
	dsaf_write_dev(ppe_cb, PPEV2_VLAN_STRIP_EN_REG, en);
}

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/**
 * hns_ppe_checksum_hw - set ppe checksum caculate
 * @ppe_device: ppe device
 * @value: value
 */
static void hns_ppe_checksum_hw(struct hns_ppe_cb *ppe_cb, u32 value)
{
	dsaf_set_dev_field(ppe_cb, PPE_CFG_PRO_CHECK_EN_REG,
			   0xfffffff, 0, value);
}

static void hns_ppe_set_qid_mode(struct ppe_common_cb *ppe_common,
				 enum ppe_qid_mode qid_mdoe)
{
	dsaf_set_dev_field(ppe_common, PPE_COM_CFG_QID_MODE_REG,
			   PPE_CFG_QID_MODE_CF_QID_MODE_M,
			   PPE_CFG_QID_MODE_CF_QID_MODE_S, qid_mdoe);
}

/**
 * hns_ppe_set_qid - set ppe qid
 * @ppe_common: ppe common device
 * @qid: queue id
 */
static void hns_ppe_set_qid(struct ppe_common_cb *ppe_common, u32 qid)
{
	u32 qid_mod = dsaf_read_dev(ppe_common, PPE_COM_CFG_QID_MODE_REG);

	if (!dsaf_get_field(qid_mod, PPE_CFG_QID_MODE_DEF_QID_M,
			    PPE_CFG_QID_MODE_DEF_QID_S)) {
		dsaf_set_field(qid_mod, PPE_CFG_QID_MODE_DEF_QID_M,
			       PPE_CFG_QID_MODE_DEF_QID_S, qid);
		dsaf_write_dev(ppe_common, PPE_COM_CFG_QID_MODE_REG, qid_mod);
	}
}

/**
 * hns_ppe_set_port_mode - set port mode
 * @ppe_device: ppe device
 * @mode: port mode
 */
static void hns_ppe_set_port_mode(struct hns_ppe_cb *ppe_cb,
				  enum ppe_port_mode mode)
{
	dsaf_write_dev(ppe_cb, PPE_CFG_XGE_MODE_REG, mode);
}

/**
 * hns_ppe_common_init_hw - init ppe common device
 * @ppe_common: ppe common device
 *
 * Return 0 on success, negative on failure
 */
static int hns_ppe_common_init_hw(struct ppe_common_cb *ppe_common)
{
	enum ppe_qid_mode qid_mode;
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	struct dsaf_device *dsaf_dev = ppe_common->dsaf_dev;
	enum dsaf_mode dsaf_mode = dsaf_dev->dsaf_mode;
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	dsaf_dev->misc_op->ppe_comm_srst(dsaf_dev, 0);
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	mdelay(100);
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	dsaf_dev->misc_op->ppe_comm_srst(dsaf_dev, 1);
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	mdelay(100);

	if (ppe_common->ppe_mode == PPE_COMMON_MODE_SERVICE) {
		switch (dsaf_mode) {
		case DSAF_MODE_ENABLE_FIX:
		case DSAF_MODE_DISABLE_FIX:
			qid_mode = PPE_QID_MODE0;
			hns_ppe_set_qid(ppe_common, 0);
			break;
		case DSAF_MODE_ENABLE_0VM:
		case DSAF_MODE_DISABLE_2PORT_64VM:
			qid_mode = PPE_QID_MODE3;
			break;
		case DSAF_MODE_ENABLE_8VM:
		case DSAF_MODE_DISABLE_2PORT_16VM:
			qid_mode = PPE_QID_MODE4;
			break;
		case DSAF_MODE_ENABLE_16VM:
		case DSAF_MODE_DISABLE_6PORT_0VM:
			qid_mode = PPE_QID_MODE5;
			break;
		case DSAF_MODE_ENABLE_32VM:
		case DSAF_MODE_DISABLE_6PORT_16VM:
			qid_mode = PPE_QID_MODE2;
			break;
		case DSAF_MODE_ENABLE_128VM:
		case DSAF_MODE_DISABLE_6PORT_4VM:
			qid_mode = PPE_QID_MODE1;
			break;
		case DSAF_MODE_DISABLE_2PORT_8VM:
			qid_mode = PPE_QID_MODE7;
			break;
		case DSAF_MODE_DISABLE_6PORT_2VM:
			qid_mode = PPE_QID_MODE6;
			break;
		default:
			dev_err(ppe_common->dev,
				"get ppe queue mode failed! dsaf_mode=%d\n",
				dsaf_mode);
			return -EINVAL;
		}
		hns_ppe_set_qid_mode(ppe_common, qid_mode);
	}

	dsaf_set_dev_bit(ppe_common, PPE_COM_COMMON_CNT_CLR_CE_REG,
			 PPE_COMMON_CNT_CLR_CE_B, 1);

	return 0;
}

/*clr ppe exception irq*/
static void hns_ppe_exc_irq_en(struct hns_ppe_cb *ppe_cb, int en)
{
	u32 clr_vlue = 0xfffffffful;
	u32 msk_vlue = en ? 0xfffffffful : 0; /*1 is en, 0 is dis*/
	u32 vld_msk = 0;

	/*only care bit 0,1,7*/
	dsaf_set_bit(vld_msk, 0, 1);
	dsaf_set_bit(vld_msk, 1, 1);
	dsaf_set_bit(vld_msk, 7, 1);

	/*clr sts**/
	dsaf_write_dev(ppe_cb, PPE_RINT_REG, clr_vlue);

	/*for some reserved bits, so set 0**/
	dsaf_write_dev(ppe_cb, PPE_INTEN_REG, msk_vlue & vld_msk);
}

/**
 * ppe_init_hw - init ppe
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 * @ppe_cb: ppe device
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 */
static void hns_ppe_init_hw(struct hns_ppe_cb *ppe_cb)
{
	struct ppe_common_cb *ppe_common_cb = ppe_cb->ppe_common_cb;
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	u32 port = ppe_cb->index;
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	struct dsaf_device *dsaf_dev = ppe_common_cb->dsaf_dev;
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	int i;

	/* get default RSS key */
	netdev_rss_key_fill(ppe_cb->rss_key, HNS_PPEV2_RSS_KEY_SIZE);
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	dsaf_dev->misc_op->ppe_srst(dsaf_dev, port, 0);
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	mdelay(10);
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	dsaf_dev->misc_op->ppe_srst(dsaf_dev, port, 1);
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	/* clr and msk except irq*/
	hns_ppe_exc_irq_en(ppe_cb, 0);

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	if (ppe_common_cb->ppe_mode == PPE_COMMON_MODE_DEBUG) {
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		hns_ppe_set_port_mode(ppe_cb, PPE_MODE_GE);
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		dsaf_write_dev(ppe_cb, PPE_CFG_PAUSE_IDLE_CNT_REG, 0);
	} else {
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		hns_ppe_set_port_mode(ppe_cb, PPE_MODE_XGE);
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	}
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	hns_ppe_checksum_hw(ppe_cb, 0xffffffff);
	hns_ppe_cnt_clr_ce(ppe_cb);
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	if (!AE_IS_VER1(dsaf_dev->dsaf_ver)) {
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		hns_ppe_set_vlan_strip(ppe_cb, 0);

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		dsaf_write_dev(ppe_cb, PPE_CFG_MAX_FRAME_LEN_REG,
			       HNS_PPEV2_MAX_FRAME_LEN);

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		/* set default RSS key in h/w */
		hns_ppe_set_rss_key(ppe_cb, ppe_cb->rss_key);

		/* Set default indrection table in h/w */
		for (i = 0; i < HNS_PPEV2_RSS_IND_TBL_SIZE; i++)
			ppe_cb->rss_indir_table[i] = i;
		hns_ppe_set_indir_table(ppe_cb, ppe_cb->rss_indir_table);
	}
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}

/**
 * ppe_uninit_hw - uninit ppe
 * @ppe_device: ppe device
 */
static void hns_ppe_uninit_hw(struct hns_ppe_cb *ppe_cb)
{
	u32 port;

	if (ppe_cb->ppe_common_cb) {
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		struct dsaf_device *dsaf_dev = ppe_cb->ppe_common_cb->dsaf_dev;

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		port = ppe_cb->index;
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		dsaf_dev->misc_op->ppe_srst(dsaf_dev, port, 0);
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	}
}

void hns_ppe_uninit_ex(struct ppe_common_cb *ppe_common)
{
	u32 i;

	for (i = 0; i < ppe_common->ppe_num; i++) {
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		if (ppe_common->dsaf_dev->mac_cb[i])
			hns_ppe_uninit_hw(&ppe_common->ppe_cb[i]);
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		memset(&ppe_common->ppe_cb[i], 0, sizeof(struct hns_ppe_cb));
	}
}

void hns_ppe_uninit(struct dsaf_device *dsaf_dev)
{
	u32 i;

	for (i = 0; i < HNS_PPE_COM_NUM; i++) {
		if (dsaf_dev->ppe_common[i])
			hns_ppe_uninit_ex(dsaf_dev->ppe_common[i]);
		hns_rcb_common_free_cfg(dsaf_dev, i);
		hns_ppe_common_free_cfg(dsaf_dev, i);
	}
}

/**
 * hns_ppe_reset - reinit ppe/rcb hw
 * @dsaf_dev: dasf device
 * retuen void
 */
void hns_ppe_reset_common(struct dsaf_device *dsaf_dev, u8 ppe_common_index)
{
	u32 i;
	int ret;
	struct ppe_common_cb *ppe_common;

	ppe_common = dsaf_dev->ppe_common[ppe_common_index];
	ret = hns_ppe_common_init_hw(ppe_common);
	if (ret)
		return;

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	for (i = 0; i < ppe_common->ppe_num; i++) {
		/* We only need to initiate ppe when the port exists */
		if (dsaf_dev->mac_cb[i])
			hns_ppe_init_hw(&ppe_common->ppe_cb[i]);
	}
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	ret = hns_rcb_common_init_hw(dsaf_dev->rcb_common[ppe_common_index]);
	if (ret)
		return;

	hns_rcb_common_init_commit_hw(dsaf_dev->rcb_common[ppe_common_index]);
}

void hns_ppe_update_stats(struct hns_ppe_cb *ppe_cb)
{
	struct hns_ppe_hw_stats *hw_stats = &ppe_cb->hw_stats;

	hw_stats->rx_pkts_from_sw
		+= dsaf_read_dev(ppe_cb, PPE_HIS_RX_SW_PKT_CNT_REG);
	hw_stats->rx_pkts
		+= dsaf_read_dev(ppe_cb, PPE_HIS_RX_WR_BD_OK_PKT_CNT_REG);
	hw_stats->rx_drop_no_bd
		+= dsaf_read_dev(ppe_cb, PPE_HIS_RX_PKT_NO_BUF_CNT_REG);
	hw_stats->rx_alloc_buf_fail
		+= dsaf_read_dev(ppe_cb, PPE_HIS_RX_APP_BUF_FAIL_CNT_REG);
	hw_stats->rx_alloc_buf_wait
		+= dsaf_read_dev(ppe_cb, PPE_HIS_RX_APP_BUF_WAIT_CNT_REG);
	hw_stats->rx_drop_no_buf
		+= dsaf_read_dev(ppe_cb, PPE_HIS_RX_PKT_DROP_FUL_CNT_REG);
	hw_stats->rx_err_fifo_full
		+= dsaf_read_dev(ppe_cb, PPE_HIS_RX_PKT_DROP_PRT_CNT_REG);

	hw_stats->tx_bd_form_rcb
		+= dsaf_read_dev(ppe_cb, PPE_HIS_TX_BD_CNT_REG);
	hw_stats->tx_pkts_from_rcb
		+= dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_CNT_REG);
	hw_stats->tx_pkts
		+= dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_OK_CNT_REG);
	hw_stats->tx_err_fifo_empty
		+= dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_EPT_CNT_REG);
	hw_stats->tx_err_checksum
		+= dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_CS_FAIL_CNT_REG);
}

int hns_ppe_get_sset_count(int stringset)
{
	if (stringset == ETH_SS_STATS)
		return ETH_PPE_STATIC_NUM;
	return 0;
}

int hns_ppe_get_regs_count(void)
{
	return ETH_PPE_DUMP_NUM;
}

/**
 * ppe_get_strings - get ppe srting
 * @ppe_device: ppe device
 * @stringset: string set type
 * @data: output string
 */
void hns_ppe_get_strings(struct hns_ppe_cb *ppe_cb, int stringset, u8 *data)
{
	char *buff = (char *)data;
	int index = ppe_cb->index;

	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_rx_sw_pkt", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_rx_pkt_ok", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_rx_drop_pkt_no_bd", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_rx_alloc_buf_fail", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_rx_alloc_buf_wait", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_rx_pkt_drop_no_buf", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_rx_pkt_err_fifo_full", index);
	buff = buff + ETH_GSTRING_LEN;

	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_tx_bd", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_tx_pkt", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_tx_pkt_ok", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_tx_pkt_err_fifo_empty", index);
	buff = buff + ETH_GSTRING_LEN;
	snprintf(buff, ETH_GSTRING_LEN, "ppe%d_tx_pkt_err_csum_fail", index);
}

void hns_ppe_get_stats(struct hns_ppe_cb *ppe_cb, u64 *data)
{
	u64 *regs_buff = data;
	struct hns_ppe_hw_stats *hw_stats = &ppe_cb->hw_stats;

	regs_buff[0] = hw_stats->rx_pkts_from_sw;
	regs_buff[1] = hw_stats->rx_pkts;
	regs_buff[2] = hw_stats->rx_drop_no_bd;
	regs_buff[3] = hw_stats->rx_alloc_buf_fail;
	regs_buff[4] = hw_stats->rx_alloc_buf_wait;
	regs_buff[5] = hw_stats->rx_drop_no_buf;
	regs_buff[6] = hw_stats->rx_err_fifo_full;

	regs_buff[7] = hw_stats->tx_bd_form_rcb;
	regs_buff[8] = hw_stats->tx_pkts_from_rcb;
	regs_buff[9] = hw_stats->tx_pkts;
	regs_buff[10] = hw_stats->tx_err_fifo_empty;
	regs_buff[11] = hw_stats->tx_err_checksum;
}

/**
 * hns_ppe_init - init ppe device
 * @dsaf_dev: dasf device
 * retuen 0 - success , negative --fail
 */
int hns_ppe_init(struct dsaf_device *dsaf_dev)
{
	int ret;
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	int i;
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	for (i = 0; i < HNS_PPE_COM_NUM; i++) {
		ret = hns_ppe_common_get_cfg(dsaf_dev, i);
		if (ret)
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			goto get_cfg_fail;
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		ret = hns_rcb_common_get_cfg(dsaf_dev, i);
		if (ret)
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			goto get_cfg_fail;
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		hns_ppe_get_cfg(dsaf_dev->ppe_common[i]);

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		ret = hns_rcb_get_cfg(dsaf_dev->rcb_common[i]);
		if (ret)
			goto get_cfg_fail;
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	}

	for (i = 0; i < HNS_PPE_COM_NUM; i++)
		hns_ppe_reset_common(dsaf_dev, i);

	return 0;

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get_cfg_fail:
	for (i = 0; i < HNS_PPE_COM_NUM; i++) {
		hns_rcb_common_free_cfg(dsaf_dev, i);
		hns_ppe_common_free_cfg(dsaf_dev, i);
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	}
528

529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622
	return ret;
}

void hns_ppe_get_regs(struct hns_ppe_cb *ppe_cb, void *data)
{
	struct ppe_common_cb *ppe_common = ppe_cb->ppe_common_cb;
	u32 *regs = data;
	u32 i;
	u32 offset;

	/* ppe common registers */
	regs[0] = dsaf_read_dev(ppe_common, PPE_COM_CFG_QID_MODE_REG);
	regs[1] = dsaf_read_dev(ppe_common, PPE_COM_INTEN_REG);
	regs[2] = dsaf_read_dev(ppe_common, PPE_COM_RINT_REG);
	regs[3] = dsaf_read_dev(ppe_common, PPE_COM_INTSTS_REG);
	regs[4] = dsaf_read_dev(ppe_common, PPE_COM_COMMON_CNT_CLR_CE_REG);

	for (i = 0; i < DSAF_TOTAL_QUEUE_NUM; i++) {
		offset = PPE_COM_HIS_RX_PKT_QID_DROP_CNT_REG + 0x4 * i;
		regs[5 + i] = dsaf_read_dev(ppe_common, offset);
		offset = PPE_COM_HIS_RX_PKT_QID_OK_CNT_REG + 0x4 * i;
		regs[5 + i + DSAF_TOTAL_QUEUE_NUM]
				= dsaf_read_dev(ppe_common, offset);
		offset = PPE_COM_HIS_TX_PKT_QID_ERR_CNT_REG + 0x4 * i;
		regs[5 + i + DSAF_TOTAL_QUEUE_NUM * 2]
				= dsaf_read_dev(ppe_common, offset);
		offset = PPE_COM_HIS_TX_PKT_QID_OK_CNT_REG + 0x4 * i;
		regs[5 + i + DSAF_TOTAL_QUEUE_NUM * 3]
				= dsaf_read_dev(ppe_common, offset);
	}

	/* mark end of ppe regs */
	for (i = 521; i < 524; i++)
		regs[i] = 0xeeeeeeee;

	/* ppe channel registers */
	regs[525] = dsaf_read_dev(ppe_cb, PPE_CFG_TX_FIFO_THRSLD_REG);
	regs[526] = dsaf_read_dev(ppe_cb, PPE_CFG_RX_FIFO_THRSLD_REG);
	regs[527] = dsaf_read_dev(ppe_cb, PPE_CFG_RX_FIFO_PAUSE_THRSLD_REG);
	regs[528] = dsaf_read_dev(ppe_cb, PPE_CFG_RX_FIFO_SW_BP_THRSLD_REG);
	regs[529] = dsaf_read_dev(ppe_cb, PPE_CFG_PAUSE_IDLE_CNT_REG);
	regs[530] = dsaf_read_dev(ppe_cb, PPE_CFG_BUS_CTRL_REG);
	regs[531] = dsaf_read_dev(ppe_cb, PPE_CFG_TNL_TO_BE_RST_REG);
	regs[532] = dsaf_read_dev(ppe_cb, PPE_CURR_TNL_CAN_RST_REG);

	regs[533] = dsaf_read_dev(ppe_cb, PPE_CFG_XGE_MODE_REG);
	regs[534] = dsaf_read_dev(ppe_cb, PPE_CFG_MAX_FRAME_LEN_REG);
	regs[535] = dsaf_read_dev(ppe_cb, PPE_CFG_RX_PKT_MODE_REG);
	regs[536] = dsaf_read_dev(ppe_cb, PPE_CFG_RX_VLAN_TAG_REG);
	regs[537] = dsaf_read_dev(ppe_cb, PPE_CFG_TAG_GEN_REG);
	regs[538] = dsaf_read_dev(ppe_cb, PPE_CFG_PARSE_TAG_REG);
	regs[539] = dsaf_read_dev(ppe_cb, PPE_CFG_PRO_CHECK_EN_REG);

	regs[540] = dsaf_read_dev(ppe_cb, PPE_INTEN_REG);
	regs[541] = dsaf_read_dev(ppe_cb, PPE_RINT_REG);
	regs[542] = dsaf_read_dev(ppe_cb, PPE_INTSTS_REG);
	regs[543] = dsaf_read_dev(ppe_cb, PPE_CFG_RX_PKT_INT_REG);

	regs[544] = dsaf_read_dev(ppe_cb, PPE_CFG_HEAT_DECT_TIME0_REG);
	regs[545] = dsaf_read_dev(ppe_cb, PPE_CFG_HEAT_DECT_TIME1_REG);

	/* ppe static */
	regs[546] = dsaf_read_dev(ppe_cb, PPE_HIS_RX_SW_PKT_CNT_REG);
	regs[547] = dsaf_read_dev(ppe_cb, PPE_HIS_RX_WR_BD_OK_PKT_CNT_REG);
	regs[548] = dsaf_read_dev(ppe_cb, PPE_HIS_RX_PKT_NO_BUF_CNT_REG);
	regs[549] = dsaf_read_dev(ppe_cb, PPE_HIS_TX_BD_CNT_REG);
	regs[550] = dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_CNT_REG);
	regs[551] = dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_OK_CNT_REG);
	regs[552] = dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_EPT_CNT_REG);
	regs[553] = dsaf_read_dev(ppe_cb, PPE_HIS_TX_PKT_CS_FAIL_CNT_REG);
	regs[554] = dsaf_read_dev(ppe_cb, PPE_HIS_RX_APP_BUF_FAIL_CNT_REG);
	regs[555] = dsaf_read_dev(ppe_cb, PPE_HIS_RX_APP_BUF_WAIT_CNT_REG);
	regs[556] = dsaf_read_dev(ppe_cb, PPE_HIS_RX_PKT_DROP_FUL_CNT_REG);
	regs[557] = dsaf_read_dev(ppe_cb, PPE_HIS_RX_PKT_DROP_PRT_CNT_REG);

	regs[558] = dsaf_read_dev(ppe_cb, PPE_TNL_0_5_CNT_CLR_CE_REG);
	regs[559] = dsaf_read_dev(ppe_cb, PPE_CFG_AXI_DBG_REG);
	regs[560] = dsaf_read_dev(ppe_cb, PPE_HIS_PRO_ERR_REG);
	regs[561] = dsaf_read_dev(ppe_cb, PPE_HIS_TNL_FIFO_ERR_REG);
	regs[562] = dsaf_read_dev(ppe_cb, PPE_CURR_CFF_DATA_NUM_REG);
	regs[563] = dsaf_read_dev(ppe_cb, PPE_CURR_RX_ST_REG);
	regs[564] = dsaf_read_dev(ppe_cb, PPE_CURR_TX_ST_REG);
	regs[565] = dsaf_read_dev(ppe_cb, PPE_CURR_RX_FIFO0_REG);
	regs[566] = dsaf_read_dev(ppe_cb, PPE_CURR_RX_FIFO1_REG);
	regs[567] = dsaf_read_dev(ppe_cb, PPE_CURR_TX_FIFO0_REG);
	regs[568] = dsaf_read_dev(ppe_cb, PPE_CURR_TX_FIFO1_REG);
	regs[569] = dsaf_read_dev(ppe_cb, PPE_ECO0_REG);
	regs[570] = dsaf_read_dev(ppe_cb, PPE_ECO1_REG);
	regs[571] = dsaf_read_dev(ppe_cb, PPE_ECO2_REG);

	/* mark end of ppe regs */
	for (i = 572; i < 576; i++)
		regs[i] = 0xeeeeeeee;
}