root/drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (c) 2014-2015 Hisilicon Limited.
   4  */
   5 
   6 #ifndef _HNS_DSAF_PPE_H
   7 #define _HNS_DSAF_PPE_H
   8 
   9 #include <linux/platform_device.h>
  10 
  11 #include "hns_dsaf_main.h"
  12 #include "hns_dsaf_mac.h"
  13 #include "hns_dsaf_rcb.h"
  14 
  15 #define HNS_PPE_SERVICE_NW_ENGINE_NUM DSAF_COMM_CHN
  16 #define HNS_PPE_DEBUG_NW_ENGINE_NUM 1
  17 #define HNS_PPE_COM_NUM DSAF_COMM_DEV_NUM
  18 
  19 #define PPE_COMMON_REG_OFFSET 0x70000
  20 #define PPE_REG_OFFSET 0x10000
  21 
  22 #define ETH_PPE_DUMP_NUM 576
  23 #define ETH_PPE_STATIC_NUM 12
  24 
  25 #define HNS_PPEV2_RSS_IND_TBL_SIZE 256
  26 #define HNS_PPEV2_RSS_KEY_SIZE 40 /* in bytes or 320 bits */
  27 #define HNS_PPEV2_RSS_KEY_NUM (HNS_PPEV2_RSS_KEY_SIZE / sizeof(u32))
  28 
  29 #define HNS_PPEV2_MAX_FRAME_LEN 0X980
  30 
  31 enum ppe_qid_mode {
  32         PPE_QID_MODE0 = 0, /* fixed queue id mode */
  33         PPE_QID_MODE1,     /* switch:128VM non switch:6Port/4VM/4TC */
  34         PPE_QID_MODE2,     /* switch:32VM/4TC non switch:6Port/16VM */
  35         PPE_QID_MODE3,     /* switch:4TC/8RSS non switch:2Port/64VM */
  36         PPE_QID_MODE4,     /* switch:8VM/16RSS non switch:2Port/16VM/4TC */
  37         PPE_QID_MODE5,     /* switch:16VM/8TC non switch:6Port/16RSS */
  38         PPE_QID_MODE6,     /* switch:32VM/4RSS non switch:6Port/2VM/8TC */
  39         PPE_QID_MODE7,     /* switch:32RSS non switch:2Port/8VM/8TC */
  40         PPE_QID_MODE8,     /* switch:6VM/4TC/4RSS non switch:2Port/16VM/4RSS */
  41         PPE_QID_MODE9,     /* non switch:2Port/32VM/2RSS */
  42         PPE_QID_MODE10,    /* non switch:2Port/32RSS */
  43         PPE_QID_MODE11,    /* non switch:2Port/4TC/16RSS */
  44 };
  45 
  46 enum ppe_port_mode {
  47         PPE_MODE_GE = 0,
  48         PPE_MODE_XGE,
  49 };
  50 
  51 enum ppe_common_mode {
  52         PPE_COMMON_MODE_DEBUG = 0,
  53         PPE_COMMON_MODE_SERVICE,
  54         PPE_COMMON_MODE_MAX
  55 };
  56 
  57 struct hns_ppe_hw_stats {
  58         u64 rx_pkts_from_sw;
  59         u64 rx_pkts;
  60         u64 rx_drop_no_bd;
  61         u64 rx_alloc_buf_fail;
  62         u64 rx_alloc_buf_wait;
  63         u64 rx_drop_no_buf;
  64         u64 rx_err_fifo_full;
  65         u64 tx_bd_form_rcb;
  66         u64 tx_pkts_from_rcb;
  67         u64 tx_pkts;
  68         u64 tx_err_fifo_empty;
  69         u64 tx_err_checksum;
  70 };
  71 
  72 struct hns_ppe_cb {
  73         struct device *dev;
  74         struct hns_ppe_cb *next;        /* pointer to next ppe device */
  75         struct ppe_common_cb *ppe_common_cb; /* belong to */
  76         struct hns_ppe_hw_stats hw_stats;
  77 
  78         u8 index;       /* index in a ppe common device */
  79         u8 __iomem *io_base;
  80         int virq;
  81         u32 rss_indir_table[HNS_PPEV2_RSS_IND_TBL_SIZE]; /*shadow indir tab */
  82         u32 rss_key[HNS_PPEV2_RSS_KEY_NUM]; /* rss hash key */
  83 };
  84 
  85 struct ppe_common_cb {
  86         struct device *dev;
  87         struct dsaf_device *dsaf_dev;
  88         u8 __iomem *io_base;
  89 
  90         enum ppe_common_mode ppe_mode;
  91 
  92         u8 comm_index;   /*ppe_common index*/
  93 
  94         u32 ppe_num;
  95         struct hns_ppe_cb ppe_cb[0];
  96 
  97 };
  98 
  99 int hns_ppe_wait_tx_fifo_clean(struct hns_ppe_cb *ppe_cb);
 100 int hns_ppe_init(struct dsaf_device *dsaf_dev);
 101 
 102 void hns_ppe_uninit(struct dsaf_device *dsaf_dev);
 103 
 104 void hns_ppe_reset_common(struct dsaf_device *dsaf_dev, u8 ppe_common_index);
 105 
 106 void hns_ppe_update_stats(struct hns_ppe_cb *ppe_cb);
 107 
 108 int hns_ppe_get_sset_count(int stringset);
 109 int hns_ppe_get_regs_count(void);
 110 void hns_ppe_get_regs(struct hns_ppe_cb *ppe_cb, void *data);
 111 
 112 void hns_ppe_get_strings(struct hns_ppe_cb *ppe_cb, int stringset, u8 *data);
 113 void hns_ppe_get_stats(struct hns_ppe_cb *ppe_cb, u64 *data);
 114 void hns_ppe_set_tso_enable(struct hns_ppe_cb *ppe_cb, u32 value);
 115 void hns_ppe_set_rss_key(struct hns_ppe_cb *ppe_cb,
 116                          const u32 rss_key[HNS_PPEV2_RSS_KEY_NUM]);
 117 void hns_ppe_set_indir_table(struct hns_ppe_cb *ppe_cb,
 118                              const u32 rss_tab[HNS_PPEV2_RSS_IND_TBL_SIZE]);
 119 #endif /* _HNS_DSAF_PPE_H */