LXR linux/drivers/net/ethernet/intel/ice/ice.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright (c) 2018, Intel Corporation. */
   3
   4#ifndef _ICE_H_
   5#define _ICE_H_
   6
   7#include <linux/types.h>
   8#include <linux/errno.h>
   9#include <linux/kernel.h>
  10#include <linux/module.h>
  11#include <linux/netdevice.h>
  12#include <linux/compiler.h>
  13#include <linux/etherdevice.h>
  14#include <linux/skbuff.h>
  15#include <linux/cpumask.h>
  16#include <linux/rtnetlink.h>
  17#include <linux/if_vlan.h>
  18#include <linux/dma-mapping.h>
  19#include <linux/pci.h>
  20#include <linux/workqueue.h>
  21#include <linux/aer.h>
  22#include <linux/interrupt.h>
  23#include <linux/ethtool.h>
  24#include <linux/timer.h>
  25#include <linux/delay.h>
  26#include <linux/bitmap.h>
  27#include <linux/log2.h>
  28#include <linux/ip.h>
  29#include <linux/ipv6.h>
  30#include <linux/if_bridge.h>
  31#include <net/ipv6.h>
  32#include "ice_devids.h"
  33#include "ice_type.h"
  34#include "ice_txrx.h"
  35#include "ice_switch.h"
  36#include "ice_common.h"
  37#include "ice_sched.h"
  38
  39extern const char ice_drv_ver[];
  40#define ICE_BAR0                0
  41#define ICE_DFLT_NUM_DESC       128
  42#define ICE_MIN_NUM_DESC        8
  43#define ICE_MAX_NUM_DESC        8160
  44#define ICE_REQ_DESC_MULTIPLE   32
  45#define ICE_DFLT_TRAFFIC_CLASS  BIT(0)
  46#define ICE_INT_NAME_STR_LEN    (IFNAMSIZ + 16)
  47#define ICE_ETHTOOL_FWVER_LEN   32
  48#define ICE_AQ_LEN              64
  49#define ICE_MIN_MSIX            2
  50#define ICE_NO_VSI              0xffff
  51#define ICE_MAX_VSI_ALLOC       130
  52#define ICE_MAX_TXQS            2048
  53#define ICE_MAX_RXQS            2048
  54#define ICE_VSI_MAP_CONTIG      0
  55#define ICE_VSI_MAP_SCATTER     1
  56#define ICE_MAX_SCATTER_TXQS    16
  57#define ICE_MAX_SCATTER_RXQS    16
  58#define ICE_Q_WAIT_RETRY_LIMIT  10
  59#define ICE_Q_WAIT_MAX_RETRY    (5 * ICE_Q_WAIT_RETRY_LIMIT)
  60#define ICE_MAX_LG_RSS_QS       256
  61#define ICE_MAX_SMALL_RSS_QS    8
  62#define ICE_RES_VALID_BIT       0x8000
  63#define ICE_RES_MISC_VEC_ID     (ICE_RES_VALID_BIT - 1)
  64#define ICE_INVAL_Q_INDEX       0xffff
  65
  66#define ICE_VSIQF_HKEY_ARRAY_SIZE       ((VSIQF_HKEY_MAX_INDEX + 1) *   4)
  67
  68#define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK)
  69
  70#define ICE_MAX_MTU     (ICE_AQ_SET_MAC_FRAME_SIZE_MAX - \
  71                         ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN)
  72
  73#define ICE_UP_TABLE_TRANSLATE(val, i) \
  74                (((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \
  75                  ICE_AQ_VSI_UP_TABLE_UP##i##_M)
  76
  77#define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i]))
  78#define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i]))
  79#define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i]))
  80
  81/* Macro for each VSI in a PF */
  82#define ice_for_each_vsi(pf, i) \
  83        for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++)
  84
  85/* Macros for each tx/rx ring in a VSI */
  86#define ice_for_each_txq(vsi, i) \
  87        for ((i) = 0; (i) < (vsi)->num_txq; (i)++)
  88
  89#define ice_for_each_rxq(vsi, i) \
  90        for ((i) = 0; (i) < (vsi)->num_rxq; (i)++)
  91
  92struct ice_tc_info {
  93        u16 qoffset;
  94        u16 qcount;
  95};
  96
  97struct ice_tc_cfg {
  98        u8 numtc; /* Total number of enabled TCs */
  99        u8 ena_tc; /* TX map */
 100        struct ice_tc_info tc_info[ICE_MAX_TRAFFIC_CLASS];
 101};
 102
 103struct ice_res_tracker {
 104        u16 num_entries;
 105        u16 search_hint;
 106        u16 list[1];
 107};
 108
 109struct ice_sw {
 110        struct ice_pf *pf;
 111        u16 sw_id;              /* switch ID for this switch */
 112        u16 bridge_mode;        /* VEB/VEPA/Port Virtualizer */
 113};
 114
 115enum ice_state {
 116        __ICE_DOWN,
 117        __ICE_NEEDS_RESTART,
 118        __ICE_RESET_RECOVERY_PENDING,   /* set by driver when reset starts */
 119        __ICE_PFR_REQ,                  /* set by driver and peers */
 120        __ICE_CORER_REQ,                /* set by driver and peers */
 121        __ICE_GLOBR_REQ,                /* set by driver and peers */
 122        __ICE_CORER_RECV,               /* set by OICR handler */
 123        __ICE_GLOBR_RECV,               /* set by OICR handler */
 124        __ICE_EMPR_RECV,                /* set by OICR handler */
 125        __ICE_SUSPENDED,                /* set on module remove path */
 126        __ICE_RESET_FAILED,             /* set by reset/rebuild */
 127        __ICE_ADMINQ_EVENT_PENDING,
 128        __ICE_FLTR_OVERFLOW_PROMISC,
 129        __ICE_CFG_BUSY,
 130        __ICE_SERVICE_SCHED,
 131        __ICE_STATE_NBITS               /* must be last */
 132};
 133
 134enum ice_vsi_flags {
 135        ICE_VSI_FLAG_UMAC_FLTR_CHANGED,
 136        ICE_VSI_FLAG_MMAC_FLTR_CHANGED,
 137        ICE_VSI_FLAG_VLAN_FLTR_CHANGED,
 138        ICE_VSI_FLAG_PROMISC_CHANGED,
 139        ICE_VSI_FLAG_NBITS              /* must be last */
 140};
 141
 142/* struct that defines a VSI, associated with a dev */
 143struct ice_vsi {
 144        struct net_device *netdev;
 145        struct ice_sw *vsw;              /* switch this VSI is on */
 146        struct ice_pf *back;             /* back pointer to PF */
 147        struct ice_port_info *port_info; /* back pointer to port_info */
 148        struct ice_ring **rx_rings;      /* rx ring array */
 149        struct ice_ring **tx_rings;      /* tx ring array */
 150        struct ice_q_vector **q_vectors; /* q_vector array */
 151
 152        irqreturn_t (*irq_handler)(int irq, void *data);
 153
 154        u64 tx_linearize;
 155        DECLARE_BITMAP(state, __ICE_STATE_NBITS);
 156        DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS);
 157        unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 158        unsigned int current_netdev_flags;
 159        u32 tx_restart;
 160        u32 tx_busy;
 161        u32 rx_buf_failed;
 162        u32 rx_page_failed;
 163        int num_q_vectors;
 164        int base_vector;
 165        enum ice_vsi_type type;
 166        u16 vsi_num;                     /* HW (absolute) index of this VSI */
 167        u16 idx;                         /* software index in pf->vsi[] */
 168
 169        /* Interrupt thresholds */
 170        u16 work_lmt;
 171
 172        /* RSS config */
 173        u16 rss_table_size;     /* HW RSS table size */
 174        u16 rss_size;           /* Allocated RSS queues */
 175        u8 *rss_hkey_user;      /* User configured hash keys */
 176        u8 *rss_lut_user;       /* User configured lookup table entries */
 177        u8 rss_lut_type;        /* used to configure Get/Set RSS LUT AQ call */
 178
 179        u16 max_frame;
 180        u16 rx_buf_len;
 181
 182        struct ice_aqc_vsi_props info;   /* VSI properties */
 183
 184        /* VSI stats */
 185        struct rtnl_link_stats64 net_stats;
 186        struct ice_eth_stats eth_stats;
 187        struct ice_eth_stats eth_stats_prev;
 188
 189        struct list_head tmp_sync_list;         /* MAC filters to be synced */
 190        struct list_head tmp_unsync_list;       /* MAC filters to be unsynced */
 191
 192        bool irqs_ready;
 193        bool current_isup;               /* Sync 'link up' logging */
 194        bool stat_offsets_loaded;
 195
 196        /* queue information */
 197        u8 tx_mapping_mode;              /* ICE_MAP_MODE_[CONTIG|SCATTER] */
 198        u8 rx_mapping_mode;              /* ICE_MAP_MODE_[CONTIG|SCATTER] */
 199        u16 txq_map[ICE_MAX_TXQS];       /* index in pf->avail_txqs */
 200        u16 rxq_map[ICE_MAX_RXQS];       /* index in pf->avail_rxqs */
 201        u16 alloc_txq;                   /* Allocated Tx queues */
 202        u16 num_txq;                     /* Used Tx queues */
 203        u16 alloc_rxq;                   /* Allocated Rx queues */
 204        u16 num_rxq;                     /* Used Rx queues */
 205        u16 num_desc;
 206        struct ice_tc_cfg tc_cfg;
 207} ____cacheline_internodealigned_in_smp;
 208
 209/* struct that defines an interrupt vector */
 210struct ice_q_vector {
 211        struct ice_vsi *vsi;
 212        cpumask_t affinity_mask;
 213        struct napi_struct napi;
 214        struct ice_ring_container rx;
 215        struct ice_ring_container tx;
 216        struct irq_affinity_notify affinity_notify;
 217        u16 v_idx;                      /* index in the vsi->q_vector array. */
 218        u8 num_ring_tx;                 /* total number of tx rings in vector */
 219        u8 num_ring_rx;                 /* total number of rx rings in vector */
 220        char name[ICE_INT_NAME_STR_LEN];
 221} ____cacheline_internodealigned_in_smp;
 222
 223enum ice_pf_flags {
 224        ICE_FLAG_MSIX_ENA,
 225        ICE_FLAG_FLTR_SYNC,
 226        ICE_FLAG_RSS_ENA,
 227        ICE_PF_FLAGS_NBITS              /* must be last */
 228};
 229
 230struct ice_pf {
 231        struct pci_dev *pdev;
 232        struct msix_entry *msix_entries;
 233        struct ice_res_tracker *irq_tracker;
 234        struct ice_vsi **vsi;           /* VSIs created by the driver */
 235        struct ice_sw *first_sw;        /* first switch created by firmware */
 236        DECLARE_BITMAP(state, __ICE_STATE_NBITS);
 237        DECLARE_BITMAP(avail_txqs, ICE_MAX_TXQS);
 238        DECLARE_BITMAP(avail_rxqs, ICE_MAX_RXQS);
 239        DECLARE_BITMAP(flags, ICE_PF_FLAGS_NBITS);
 240        unsigned long serv_tmr_period;
 241        unsigned long serv_tmr_prev;
 242        struct timer_list serv_tmr;
 243        struct work_struct serv_task;
 244        struct mutex avail_q_mutex;     /* protects access to avail_[rx|tx]qs */
 245        struct mutex sw_mutex;          /* lock for protecting VSI alloc flow */
 246        u32 msg_enable;
 247        u32 hw_csum_rx_error;
 248        u32 oicr_idx;           /* Other interrupt cause vector index */
 249        u32 num_lan_msix;       /* Total MSIX vectors for base driver */
 250        u32 num_avail_msix;     /* remaining MSIX vectors left unclaimed */
 251        u16 num_lan_tx;         /* num lan tx queues setup */
 252        u16 num_lan_rx;         /* num lan rx queues setup */
 253        u16 q_left_tx;          /* remaining num tx queues left unclaimed */
 254        u16 q_left_rx;          /* remaining num rx queues left unclaimed */
 255        u16 next_vsi;           /* Next free slot in pf->vsi[] - 0-based! */
 256        u16 num_alloc_vsi;
 257        u16 corer_count;        /* Core reset count */
 258        u16 globr_count;        /* Global reset count */
 259        u16 empr_count;         /* EMP reset count */
 260        u16 pfr_count;          /* PF reset count */
 261
 262        struct ice_hw_port_stats stats;
 263        struct ice_hw_port_stats stats_prev;
 264        struct ice_hw hw;
 265        bool stat_prev_loaded;  /* has previous stats been loaded */
 266        char int_name[ICE_INT_NAME_STR_LEN];
 267};
 268
 269struct ice_netdev_priv {
 270        struct ice_vsi *vsi;
 271};
 272
 273/**
 274 * ice_irq_dynamic_ena - Enable default interrupt generation settings
 275 * @hw: pointer to hw struct
 276 * @vsi: pointer to vsi struct, can be NULL
 277 * @q_vector: pointer to q_vector, can be NULL
 278 */
 279static inline void ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi,
 280                                       struct ice_q_vector *q_vector)
 281{
 282        u32 vector = (vsi && q_vector) ? vsi->base_vector + q_vector->v_idx :
 283                                        ((struct ice_pf *)hw->back)->oicr_idx;
 284        int itr = ICE_ITR_NONE;
 285        u32 val;
 286
 287        /* clear the PBA here, as this function is meant to clean out all
 288         * previous interrupts and enable the interrupt
 289         */
 290        val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M |
 291              (itr << GLINT_DYN_CTL_ITR_INDX_S);
 292        if (vsi)
 293                if (test_bit(__ICE_DOWN, vsi->state))
 294                        return;
 295        wr32(hw, GLINT_DYN_CTL(vector), val);
 296}
 297
 298static inline void ice_vsi_set_tc_cfg(struct ice_vsi *vsi)
 299{
 300        vsi->tc_cfg.ena_tc =  ICE_DFLT_TRAFFIC_CLASS;
 301        vsi->tc_cfg.numtc = 1;
 302}
 303
 304void ice_set_ethtool_ops(struct net_device *netdev);
 305int ice_up(struct ice_vsi *vsi);
 306int ice_down(struct ice_vsi *vsi);
 307int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 308int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 309void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size);
 310void ice_print_link_msg(struct ice_vsi *vsi, bool isup);
 311
 312#endif /* _ICE_H_ */
 313