LXR linux/drivers/net/ethernet/intel/i40e/i40e.h

   1/*******************************************************************************
   2 *
   3 * Intel Ethernet Controller XL710 Family Linux Driver
   4 * Copyright(c) 2013 - 2015 Intel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 *
  15 * You should have received a copy of the GNU General Public License along
  16 * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 *
  18 * The full GNU General Public License is included in this distribution in
  19 * the file called "COPYING".
  20 *
  21 * Contact Information:
  22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24 *
  25 ******************************************************************************/
  26
  27#ifndef _I40E_H_
  28#define _I40E_H_
  29
  30#include <net/tcp.h>
  31#include <net/udp.h>
  32#include <linux/types.h>
  33#include <linux/errno.h>
  34#include <linux/module.h>
  35#include <linux/pci.h>
  36#include <linux/aer.h>
  37#include <linux/netdevice.h>
  38#include <linux/ioport.h>
  39#include <linux/iommu.h>
  40#include <linux/slab.h>
  41#include <linux/list.h>
  42#include <linux/string.h>
  43#include <linux/in.h>
  44#include <linux/ip.h>
  45#include <linux/tcp.h>
  46#include <linux/sctp.h>
  47#include <linux/pkt_sched.h>
  48#include <linux/ipv6.h>
  49#include <net/checksum.h>
  50#include <net/ip6_checksum.h>
  51#include <linux/ethtool.h>
  52#include <linux/if_vlan.h>
  53#include <linux/if_bridge.h>
  54#include <linux/clocksource.h>
  55#include <linux/net_tstamp.h>
  56#include <linux/ptp_clock_kernel.h>
  57#include "i40e_type.h"
  58#include "i40e_prototype.h"
  59#ifdef I40E_FCOE
  60#include "i40e_fcoe.h"
  61#endif
  62#include "i40e_virtchnl.h"
  63#include "i40e_virtchnl_pf.h"
  64#include "i40e_txrx.h"
  65#include "i40e_dcb.h"
  66
  67/* Useful i40e defaults */
  68#define I40E_BASE_PF_SEID     16
  69#define I40E_BASE_VSI_SEID    512
  70#define I40E_BASE_VEB_SEID    288
  71#define I40E_MAX_VEB          16
  72
  73#define I40E_MAX_NUM_DESCRIPTORS      4096
  74#define I40E_MAX_CSR_SPACE (4 * 1024 * 1024 - 64 * 1024)
  75#define I40E_DEFAULT_NUM_DESCRIPTORS  512
  76#define I40E_REQ_DESCRIPTOR_MULTIPLE  32
  77#define I40E_MIN_NUM_DESCRIPTORS      64
  78#define I40E_MIN_MSIX                 2
  79#define I40E_DEFAULT_NUM_VMDQ_VSI     8 /* max 256 VSIs */
  80#define I40E_MIN_VSI_ALLOC            51 /* LAN, ATR, FCOE, 32 VF, 16 VMDQ */
  81/* max 16 qps */
  82#define i40e_default_queues_per_vmdq(pf) \
  83                (((pf)->flags & I40E_FLAG_RSS_AQ_CAPABLE) ? 4 : 1)
  84#define I40E_DEFAULT_QUEUES_PER_VF    4
  85#define I40E_DEFAULT_QUEUES_PER_TC    1 /* should be a power of 2 */
  86#define i40e_pf_get_max_q_per_tc(pf) \
  87                (((pf)->flags & I40E_FLAG_128_QP_RSS_CAPABLE) ? 128 : 64)
  88#define I40E_FDIR_RING                0
  89#define I40E_FDIR_RING_COUNT          32
  90#ifdef I40E_FCOE
  91#define I40E_DEFAULT_FCOE             8 /* default number of QPs for FCoE */
  92#define I40E_MINIMUM_FCOE             1 /* minimum number of QPs for FCoE */
  93#endif /* I40E_FCOE */
  94#define I40E_MAX_AQ_BUF_SIZE          4096
  95#define I40E_AQ_LEN                   256
  96#define I40E_AQ_WORK_LIMIT            66 /* max number of VFs + a little */
  97#define I40E_MAX_USER_PRIORITY        8
  98#define I40E_DEFAULT_MSG_ENABLE       4
  99#define I40E_QUEUE_WAIT_RETRY_LIMIT   10
 100#define I40E_INT_NAME_STR_LEN        (IFNAMSIZ + 16)
 101
 102/* Ethtool Private Flags */
 103#define I40E_PRIV_FLAGS_NPAR_FLAG       BIT(0)
 104#define I40E_PRIV_FLAGS_LINKPOLL_FLAG   BIT(1)
 105#define I40E_PRIV_FLAGS_FD_ATR          BIT(2)
 106#define I40E_PRIV_FLAGS_VEB_STATS       BIT(3)
 107
 108#define I40E_NVM_VERSION_LO_SHIFT  0
 109#define I40E_NVM_VERSION_LO_MASK   (0xff << I40E_NVM_VERSION_LO_SHIFT)
 110#define I40E_NVM_VERSION_HI_SHIFT  12
 111#define I40E_NVM_VERSION_HI_MASK   (0xf << I40E_NVM_VERSION_HI_SHIFT)
 112#define I40E_OEM_VER_BUILD_MASK    0xffff
 113#define I40E_OEM_VER_PATCH_MASK    0xff
 114#define I40E_OEM_VER_BUILD_SHIFT   8
 115#define I40E_OEM_VER_SHIFT         24
 116
 117/* The values in here are decimal coded as hex as is the case in the NVM map*/
 118#define I40E_CURRENT_NVM_VERSION_HI 0x2
 119#define I40E_CURRENT_NVM_VERSION_LO 0x40
 120
 121/* magic for getting defines into strings */
 122#define STRINGIFY(foo)  #foo
 123#define XSTRINGIFY(bar) STRINGIFY(bar)
 124
 125#define I40E_RX_DESC(R, i)                      \
 126        ((ring_is_16byte_desc_enabled(R))       \
 127                ? (union i40e_32byte_rx_desc *) \
 128                        (&(((union i40e_16byte_rx_desc *)((R)->desc))[i])) \
 129                : (&(((union i40e_32byte_rx_desc *)((R)->desc))[i])))
 130#define I40E_TX_DESC(R, i)                      \
 131        (&(((struct i40e_tx_desc *)((R)->desc))[i]))
 132#define I40E_TX_CTXTDESC(R, i)                  \
 133        (&(((struct i40e_tx_context_desc *)((R)->desc))[i]))
 134#define I40E_TX_FDIRDESC(R, i)                  \
 135        (&(((struct i40e_filter_program_desc *)((R)->desc))[i]))
 136
 137/* default to trying for four seconds */
 138#define I40E_TRY_LINK_TIMEOUT (4 * HZ)
 139
 140/* driver state flags */
 141enum i40e_state_t {
 142        __I40E_TESTING,
 143        __I40E_CONFIG_BUSY,
 144        __I40E_CONFIG_DONE,
 145        __I40E_DOWN,
 146        __I40E_NEEDS_RESTART,
 147        __I40E_SERVICE_SCHED,
 148        __I40E_ADMINQ_EVENT_PENDING,
 149        __I40E_MDD_EVENT_PENDING,
 150        __I40E_VFLR_EVENT_PENDING,
 151        __I40E_RESET_RECOVERY_PENDING,
 152        __I40E_RESET_INTR_RECEIVED,
 153        __I40E_REINIT_REQUESTED,
 154        __I40E_PF_RESET_REQUESTED,
 155        __I40E_CORE_RESET_REQUESTED,
 156        __I40E_GLOBAL_RESET_REQUESTED,
 157        __I40E_EMP_RESET_REQUESTED,
 158        __I40E_EMP_RESET_INTR_RECEIVED,
 159        __I40E_FILTER_OVERFLOW_PROMISC,
 160        __I40E_SUSPENDED,
 161        __I40E_PTP_TX_IN_PROGRESS,
 162        __I40E_BAD_EEPROM,
 163        __I40E_DOWN_REQUESTED,
 164        __I40E_FD_FLUSH_REQUESTED,
 165        __I40E_RESET_FAILED,
 166        __I40E_PORT_TX_SUSPENDED,
 167        __I40E_VF_DISABLE,
 168};
 169
 170enum i40e_interrupt_policy {
 171        I40E_INTERRUPT_BEST_CASE,
 172        I40E_INTERRUPT_MEDIUM,
 173        I40E_INTERRUPT_LOWEST
 174};
 175
 176struct i40e_lump_tracking {
 177        u16 num_entries;
 178        u16 search_hint;
 179        u16 list[0];
 180#define I40E_PILE_VALID_BIT  0x8000
 181};
 182
 183#define I40E_DEFAULT_ATR_SAMPLE_RATE    20
 184#define I40E_FDIR_MAX_RAW_PACKET_SIZE   512
 185#define I40E_FDIR_BUFFER_FULL_MARGIN    10
 186#define I40E_FDIR_BUFFER_HEAD_ROOM      32
 187#define I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR (I40E_FDIR_BUFFER_HEAD_ROOM * 4)
 188
 189#define I40E_HKEY_ARRAY_SIZE ((I40E_PFQF_HKEY_MAX_INDEX + 1) * 4)
 190
 191enum i40e_fd_stat_idx {
 192        I40E_FD_STAT_ATR,
 193        I40E_FD_STAT_SB,
 194        I40E_FD_STAT_ATR_TUNNEL,
 195        I40E_FD_STAT_PF_COUNT
 196};
 197#define I40E_FD_STAT_PF_IDX(pf_id) ((pf_id) * I40E_FD_STAT_PF_COUNT)
 198#define I40E_FD_ATR_STAT_IDX(pf_id) \
 199                        (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR)
 200#define I40E_FD_SB_STAT_IDX(pf_id)  \
 201                        (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_SB)
 202#define I40E_FD_ATR_TUNNEL_STAT_IDX(pf_id) \
 203                        (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR_TUNNEL)
 204
 205struct i40e_fdir_filter {
 206        struct hlist_node fdir_node;
 207        /* filter ipnut set */
 208        u8 flow_type;
 209        u8 ip4_proto;
 210        /* TX packet view of src and dst */
 211        __be32 dst_ip[4];
 212        __be32 src_ip[4];
 213        __be16 src_port;
 214        __be16 dst_port;
 215        __be32 sctp_v_tag;
 216        /* filter control */
 217        u16 q_index;
 218        u8  flex_off;
 219        u8  pctype;
 220        u16 dest_vsi;
 221        u8  dest_ctl;
 222        u8  fd_status;
 223        u16 cnt_index;
 224        u32 fd_id;
 225};
 226
 227#define I40E_ETH_P_LLDP                 0x88cc
 228
 229#define I40E_DCB_PRIO_TYPE_STRICT       0
 230#define I40E_DCB_PRIO_TYPE_ETS          1
 231#define I40E_DCB_STRICT_PRIO_CREDITS    127
 232#define I40E_MAX_USER_PRIORITY  8
 233/* DCB per TC information data structure */
 234struct i40e_tc_info {
 235        u16     qoffset;        /* Queue offset from base queue */
 236        u16     qcount;         /* Total Queues */
 237        u8      netdev_tc;      /* Netdev TC index if netdev associated */
 238};
 239
 240/* TC configuration data structure */
 241struct i40e_tc_configuration {
 242        u8      numtc;          /* Total number of enabled TCs */
 243        u8      enabled_tc;     /* TC map */
 244        struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
 245};
 246
 247/* struct that defines the Ethernet device */
 248struct i40e_pf {
 249        struct pci_dev *pdev;
 250        struct i40e_hw hw;
 251        unsigned long state;
 252        struct msix_entry *msix_entries;
 253        bool fc_autoneg_status;
 254
 255        u16 eeprom_version;
 256        u16 num_vmdq_vsis;         /* num vmdq vsis this PF has set up */
 257        u16 num_vmdq_qps;          /* num queue pairs per vmdq pool */
 258        u16 num_vmdq_msix;         /* num queue vectors per vmdq pool */
 259        u16 num_req_vfs;           /* num VFs requested for this VF */
 260        u16 num_vf_qps;            /* num queue pairs per VF */
 261#ifdef I40E_FCOE
 262        u16 num_fcoe_qps;          /* num fcoe queues this PF has set up */
 263        u16 num_fcoe_msix;         /* num queue vectors per fcoe pool */
 264#endif /* I40E_FCOE */
 265        u16 num_lan_qps;           /* num lan queues this PF has set up */
 266        u16 num_lan_msix;          /* num queue vectors for the base PF vsi */
 267        int queues_left;           /* queues left unclaimed */
 268        u16 rss_size;              /* num queues in the RSS array */
 269        u16 rss_size_max;          /* HW defined max RSS queues */
 270        u16 fdir_pf_filter_count;  /* num of guaranteed filters for this PF */
 271        u16 num_alloc_vsi;         /* num VSIs this driver supports */
 272        u8 atr_sample_rate;
 273        bool wol_en;
 274
 275        struct hlist_head fdir_filter_list;
 276        u16 fdir_pf_active_filters;
 277        unsigned long fd_flush_timestamp;
 278        u32 fd_flush_cnt;
 279        u32 fd_add_err;
 280        u32 fd_atr_cnt;
 281        u32 fd_tcp_rule;
 282
 283#ifdef CONFIG_I40E_VXLAN
 284        __be16  vxlan_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
 285        u16 pending_vxlan_bitmap;
 286
 287#endif
 288        enum i40e_interrupt_policy int_policy;
 289        u16 rx_itr_default;
 290        u16 tx_itr_default;
 291        u32 msg_enable;
 292        char int_name[I40E_INT_NAME_STR_LEN];
 293        u16 adminq_work_limit; /* num of admin receive queue desc to process */
 294        unsigned long service_timer_period;
 295        unsigned long service_timer_previous;
 296        struct timer_list service_timer;
 297        struct work_struct service_task;
 298
 299        u64 flags;
 300#define I40E_FLAG_RX_CSUM_ENABLED               BIT_ULL(1)
 301#define I40E_FLAG_MSI_ENABLED                   BIT_ULL(2)
 302#define I40E_FLAG_MSIX_ENABLED                  BIT_ULL(3)
 303#define I40E_FLAG_RX_1BUF_ENABLED               BIT_ULL(4)
 304#define I40E_FLAG_RX_PS_ENABLED                 BIT_ULL(5)
 305#define I40E_FLAG_RSS_ENABLED                   BIT_ULL(6)
 306#define I40E_FLAG_VMDQ_ENABLED                  BIT_ULL(7)
 307#define I40E_FLAG_FDIR_REQUIRES_REINIT          BIT_ULL(8)
 308#define I40E_FLAG_NEED_LINK_UPDATE              BIT_ULL(9)
 309#define I40E_FLAG_IWARP_ENABLED                 BIT_ULL(10)
 310#ifdef I40E_FCOE
 311#define I40E_FLAG_FCOE_ENABLED                  BIT_ULL(11)
 312#endif /* I40E_FCOE */
 313#define I40E_FLAG_16BYTE_RX_DESC_ENABLED        BIT_ULL(13)
 314#define I40E_FLAG_CLEAN_ADMINQ                  BIT_ULL(14)
 315#define I40E_FLAG_FILTER_SYNC                   BIT_ULL(15)
 316#define I40E_FLAG_PROCESS_MDD_EVENT             BIT_ULL(17)
 317#define I40E_FLAG_PROCESS_VFLR_EVENT            BIT_ULL(18)
 318#define I40E_FLAG_SRIOV_ENABLED                 BIT_ULL(19)
 319#define I40E_FLAG_DCB_ENABLED                   BIT_ULL(20)
 320#define I40E_FLAG_FD_SB_ENABLED                 BIT_ULL(21)
 321#define I40E_FLAG_FD_ATR_ENABLED                BIT_ULL(22)
 322#define I40E_FLAG_PTP                           BIT_ULL(25)
 323#define I40E_FLAG_MFP_ENABLED                   BIT_ULL(26)
 324#ifdef CONFIG_I40E_VXLAN
 325#define I40E_FLAG_VXLAN_FILTER_SYNC             BIT_ULL(27)
 326#endif
 327#define I40E_FLAG_PORT_ID_VALID                 BIT_ULL(28)
 328#define I40E_FLAG_DCB_CAPABLE                   BIT_ULL(29)
 329#define I40E_FLAG_RSS_AQ_CAPABLE                BIT_ULL(31)
 330#define I40E_FLAG_HW_ATR_EVICT_CAPABLE          BIT_ULL(32)
 331#define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE        BIT_ULL(33)
 332#define I40E_FLAG_128_QP_RSS_CAPABLE            BIT_ULL(34)
 333#define I40E_FLAG_WB_ON_ITR_CAPABLE             BIT_ULL(35)
 334#define I40E_FLAG_VEB_STATS_ENABLED             BIT_ULL(37)
 335#define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE   BIT_ULL(38)
 336#define I40E_FLAG_LINK_POLLING_ENABLED          BIT_ULL(39)
 337#define I40E_FLAG_VEB_MODE_ENABLED              BIT_ULL(40)
 338#define I40E_FLAG_NO_PCI_LINK_CHECK             BIT_ULL(42)
 339
 340        /* tracks features that get auto disabled by errors */
 341        u64 auto_disable_flags;
 342
 343#ifdef I40E_FCOE
 344        struct i40e_fcoe fcoe;
 345
 346#endif /* I40E_FCOE */
 347        bool stat_offsets_loaded;
 348        struct i40e_hw_port_stats stats;
 349        struct i40e_hw_port_stats stats_offsets;
 350        u32 tx_timeout_count;
 351        u32 tx_timeout_recovery_level;
 352        unsigned long tx_timeout_last_recovery;
 353        u32 tx_sluggish_count;
 354        u32 hw_csum_rx_error;
 355        u32 led_status;
 356        u16 corer_count; /* Core reset count */
 357        u16 globr_count; /* Global reset count */
 358        u16 empr_count; /* EMP reset count */
 359        u16 pfr_count; /* PF reset count */
 360        u16 sw_int_count; /* SW interrupt count */
 361
 362        struct mutex switch_mutex;
 363        u16 lan_vsi;       /* our default LAN VSI */
 364        u16 lan_veb;       /* initial relay, if exists */
 365#define I40E_NO_VEB   0xffff
 366#define I40E_NO_VSI   0xffff
 367        u16 next_vsi;      /* Next unallocated VSI - 0-based! */
 368        struct i40e_vsi **vsi;
 369        struct i40e_veb *veb[I40E_MAX_VEB];
 370
 371        struct i40e_lump_tracking *qp_pile;
 372        struct i40e_lump_tracking *irq_pile;
 373
 374        /* switch config info */
 375        u16 pf_seid;
 376        u16 main_vsi_seid;
 377        u16 mac_seid;
 378        struct kobject *switch_kobj;
 379#ifdef CONFIG_DEBUG_FS
 380        struct dentry *i40e_dbg_pf;
 381#endif /* CONFIG_DEBUG_FS */
 382        bool cur_promisc;
 383
 384        u16 instance; /* A unique number per i40e_pf instance in the system */
 385
 386        /* sr-iov config info */
 387        struct i40e_vf *vf;
 388        int num_alloc_vfs;      /* actual number of VFs allocated */
 389        u32 vf_aq_requests;
 390
 391        /* DCBx/DCBNL capability for PF that indicates
 392         * whether DCBx is managed by firmware or host
 393         * based agent (LLDPAD). Also, indicates what
 394         * flavor of DCBx protocol (IEEE/CEE) is supported
 395         * by the device. For now we're supporting IEEE
 396         * mode only.
 397         */
 398        u16 dcbx_cap;
 399
 400        u32     fcoe_hmc_filt_num;
 401        u32     fcoe_hmc_cntx_num;
 402        struct i40e_filter_control_settings filter_settings;
 403
 404        struct ptp_clock *ptp_clock;
 405        struct ptp_clock_info ptp_caps;
 406        struct sk_buff *ptp_tx_skb;
 407        struct hwtstamp_config tstamp_config;
 408        unsigned long last_rx_ptp_check;
 409        spinlock_t tmreg_lock; /* Used to protect the device time registers. */
 410        u64 ptp_base_adj;
 411        u32 tx_hwtstamp_timeouts;
 412        u32 rx_hwtstamp_cleared;
 413        bool ptp_tx;
 414        bool ptp_rx;
 415        u16 rss_table_size;
 416        /* These are only valid in NPAR modes */
 417        u32 npar_max_bw;
 418        u32 npar_min_bw;
 419
 420        u32 ioremap_len;
 421        u32 fd_inv;
 422};
 423
 424struct i40e_mac_filter {
 425        struct list_head list;
 426        u8 macaddr[ETH_ALEN];
 427#define I40E_VLAN_ANY -1
 428        s16 vlan;
 429        u8 counter;             /* number of instances of this filter */
 430        bool is_vf;             /* filter belongs to a VF */
 431        bool is_netdev;         /* filter belongs to a netdev */
 432        bool changed;           /* filter needs to be sync'd to the HW */
 433        bool is_laa;            /* filter is a Locally Administered Address */
 434};
 435
 436struct i40e_veb {
 437        struct i40e_pf *pf;
 438        u16 idx;
 439        u16 veb_idx;           /* index of VEB parent */
 440        u16 seid;
 441        u16 uplink_seid;
 442        u16 stats_idx;           /* index of VEB parent */
 443        u8  enabled_tc;
 444        u16 bridge_mode;        /* Bridge Mode (VEB/VEPA) */
 445        u16 flags;
 446        u16 bw_limit;
 447        u8  bw_max_quanta;
 448        bool is_abs_credits;
 449        u8  bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS];
 450        u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 451        u8  bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 452        struct kobject *kobj;
 453        bool stat_offsets_loaded;
 454        struct i40e_eth_stats stats;
 455        struct i40e_eth_stats stats_offsets;
 456        struct i40e_veb_tc_stats tc_stats;
 457        struct i40e_veb_tc_stats tc_stats_offsets;
 458};
 459
 460/* struct that defines a VSI, associated with a dev */
 461struct i40e_vsi {
 462        struct net_device *netdev;
 463        unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 464        bool netdev_registered;
 465        bool stat_offsets_loaded;
 466
 467        u32 current_netdev_flags;
 468        unsigned long state;
 469#define I40E_VSI_FLAG_FILTER_CHANGED    BIT(0)
 470#define I40E_VSI_FLAG_VEB_OWNER         BIT(1)
 471        unsigned long flags;
 472
 473        /* Per VSI lock to protect elements/list (MAC filter) */
 474        spinlock_t mac_filter_list_lock;
 475        struct list_head mac_filter_list;
 476
 477        /* VSI stats */
 478        struct rtnl_link_stats64 net_stats;
 479        struct rtnl_link_stats64 net_stats_offsets;
 480        struct i40e_eth_stats eth_stats;
 481        struct i40e_eth_stats eth_stats_offsets;
 482#ifdef I40E_FCOE
 483        struct i40e_fcoe_stats fcoe_stats;
 484        struct i40e_fcoe_stats fcoe_stats_offsets;
 485        bool fcoe_stat_offsets_loaded;
 486#endif
 487        u32 tx_restart;
 488        u32 tx_busy;
 489        u64 tx_linearize;
 490        u32 rx_buf_failed;
 491        u32 rx_page_failed;
 492
 493        /* These are containers of ring pointers, allocated at run-time */
 494        struct i40e_ring **rx_rings;
 495        struct i40e_ring **tx_rings;
 496
 497        u16 work_limit;
 498        /* high bit set means dynamic, use accessor routines to read/write.
 499         * hardware only supports 2us resolution for the ITR registers.
 500         * these values always store the USER setting, and must be converted
 501         * before programming to a register.
 502         */
 503        u16 rx_itr_setting;
 504        u16 tx_itr_setting;
 505        u16 int_rate_limit;  /* value in usecs */
 506
 507        u16 rss_table_size;
 508        u16 rss_size;
 509
 510        u16 max_frame;
 511        u16 rx_hdr_len;
 512        u16 rx_buf_len;
 513        u8  dtype;
 514
 515        /* List of q_vectors allocated to this VSI */
 516        struct i40e_q_vector **q_vectors;
 517        int num_q_vectors;
 518        int base_vector;
 519        bool irqs_ready;
 520
 521        u16 seid;            /* HW index of this VSI (absolute index) */
 522        u16 id;              /* VSI number */
 523        u16 uplink_seid;
 524
 525        u16 base_queue;      /* vsi's first queue in hw array */
 526        u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */
 527        u16 req_queue_pairs; /* User requested queue pairs */
 528        u16 num_queue_pairs; /* Used tx and rx pairs */
 529        u16 num_desc;
 530        enum i40e_vsi_type type;  /* VSI type, e.g., LAN, FCoE, etc */
 531        u16 vf_id;              /* Virtual function ID for SRIOV VSIs */
 532
 533        struct i40e_tc_configuration tc_config;
 534        struct i40e_aqc_vsi_properties_data info;
 535
 536        /* VSI BW limit (absolute across all TCs) */
 537        u16 bw_limit;           /* VSI BW Limit (0 = disabled) */
 538        u8  bw_max_quanta;      /* Max Quanta when BW limit is enabled */
 539
 540        /* Relative TC credits across VSIs */
 541        u8  bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS];
 542        /* TC BW limit credits within VSI */
 543        u16  bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 544        /* TC BW limit max quanta within VSI */
 545        u8  bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 546
 547        struct i40e_pf *back;  /* Backreference to associated PF */
 548        u16 idx;               /* index in pf->vsi[] */
 549        u16 veb_idx;           /* index of VEB parent */
 550        struct kobject *kobj;  /* sysfs object */
 551        bool current_isup;     /* Sync 'link up' logging */
 552
 553        /* VSI specific handlers */
 554        irqreturn_t (*irq_handler)(int irq, void *data);
 555
 556        /* current rxnfc data */
 557        struct ethtool_rxnfc rxnfc; /* current rss hash opts */
 558} ____cacheline_internodealigned_in_smp;
 559
 560struct i40e_netdev_priv {
 561        struct i40e_vsi *vsi;
 562};
 563
 564/* struct that defines an interrupt vector */
 565struct i40e_q_vector {
 566        struct i40e_vsi *vsi;
 567
 568        u16 v_idx;              /* index in the vsi->q_vector array. */
 569        u16 reg_idx;            /* register index of the interrupt */
 570
 571        struct napi_struct napi;
 572
 573        struct i40e_ring_container rx;
 574        struct i40e_ring_container tx;
 575
 576        u8 num_ringpairs;       /* total number of ring pairs in vector */
 577
 578        cpumask_t affinity_mask;
 579        struct rcu_head rcu;    /* to avoid race with update stats on free */
 580        char name[I40E_INT_NAME_STR_LEN];
 581        bool arm_wb_state;
 582#define ITR_COUNTDOWN_START 100
 583        u8 itr_countdown;       /* when 0 should adjust ITR */
 584} ____cacheline_internodealigned_in_smp;
 585
 586/* lan device */
 587struct i40e_device {
 588        struct list_head list;
 589        struct i40e_pf *pf;
 590};
 591
 592/**
 593 * i40e_nvm_version_str - format the NVM version strings
 594 * @hw: ptr to the hardware info
 595 **/
 596static inline char *i40e_nvm_version_str(struct i40e_hw *hw)
 597{
 598        static char buf[32];
 599        u32 full_ver;
 600        u8 ver, patch;
 601        u16 build;
 602
 603        full_ver = hw->nvm.oem_ver;
 604        ver = (u8)(full_ver >> I40E_OEM_VER_SHIFT);
 605        build = (u16)((full_ver >> I40E_OEM_VER_BUILD_SHIFT)
 606                 & I40E_OEM_VER_BUILD_MASK);
 607        patch = (u8)(full_ver & I40E_OEM_VER_PATCH_MASK);
 608
 609        snprintf(buf, sizeof(buf),
 610                 "%x.%02x 0x%x %d.%d.%d",
 611                 (hw->nvm.version & I40E_NVM_VERSION_HI_MASK) >>
 612                        I40E_NVM_VERSION_HI_SHIFT,
 613                 (hw->nvm.version & I40E_NVM_VERSION_LO_MASK) >>
 614                        I40E_NVM_VERSION_LO_SHIFT,
 615                 hw->nvm.eetrack, ver, build, patch);
 616
 617        return buf;
 618}
 619
 620/**
 621 * i40e_netdev_to_pf: Retrieve the PF struct for given netdev
 622 * @netdev: the corresponding netdev
 623 *
 624 * Return the PF struct for the given netdev
 625 **/
 626static inline struct i40e_pf *i40e_netdev_to_pf(struct net_device *netdev)
 627{
 628        struct i40e_netdev_priv *np = netdev_priv(netdev);
 629        struct i40e_vsi *vsi = np->vsi;
 630
 631        return vsi->back;
 632}
 633
 634static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
 635                                irqreturn_t (*irq_handler)(int, void *))
 636{
 637        vsi->irq_handler = irq_handler;
 638}
 639
 640/**
 641 * i40e_rx_is_programming_status - check for programming status descriptor
 642 * @qw: the first quad word of the program status descriptor
 643 *
 644 * The value of in the descriptor length field indicate if this
 645 * is a programming status descriptor for flow director or FCoE
 646 * by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise
 647 * it is a packet descriptor.
 648 **/
 649static inline bool i40e_rx_is_programming_status(u64 qw)
 650{
 651        return I40E_RX_PROG_STATUS_DESC_LENGTH ==
 652                (qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT);
 653}
 654
 655/**
 656 * i40e_get_fd_cnt_all - get the total FD filter space available
 657 * @pf: pointer to the PF struct
 658 **/
 659static inline int i40e_get_fd_cnt_all(struct i40e_pf *pf)
 660{
 661        return pf->hw.fdir_shared_filter_count + pf->fdir_pf_filter_count;
 662}
 663
 664/* needed by i40e_ethtool.c */
 665int i40e_up(struct i40e_vsi *vsi);
 666void i40e_down(struct i40e_vsi *vsi);
 667extern const char i40e_driver_name[];
 668extern const char i40e_driver_version_str[];
 669void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags);
 670void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags);
 671struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id);
 672void i40e_update_stats(struct i40e_vsi *vsi);
 673void i40e_update_eth_stats(struct i40e_vsi *vsi);
 674struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi);
 675int i40e_fetch_switch_configuration(struct i40e_pf *pf,
 676                                    bool printconfig);
 677
 678int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
 679                             struct i40e_pf *pf, bool add);
 680int i40e_add_del_fdir(struct i40e_vsi *vsi,
 681                      struct i40e_fdir_filter *input, bool add);
 682void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
 683u32 i40e_get_current_fd_count(struct i40e_pf *pf);
 684u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
 685u32 i40e_get_current_atr_cnt(struct i40e_pf *pf);
 686u32 i40e_get_global_fd_count(struct i40e_pf *pf);
 687bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features);
 688void i40e_set_ethtool_ops(struct net_device *netdev);
 689struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 690                                        u8 *macaddr, s16 vlan,
 691                                        bool is_vf, bool is_netdev);
 692void i40e_del_filter(struct i40e_vsi *vsi, u8 *macaddr, s16 vlan,
 693                     bool is_vf, bool is_netdev);
 694int i40e_sync_vsi_filters(struct i40e_vsi *vsi, bool grab_rtnl);
 695struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 696                                u16 uplink, u32 param1);
 697int i40e_vsi_release(struct i40e_vsi *vsi);
 698struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf, enum i40e_vsi_type type,
 699                                 struct i40e_vsi *start_vsi);
 700#ifdef I40E_FCOE
 701void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 702                              struct i40e_vsi_context *ctxt,
 703                              u8 enabled_tc, bool is_add);
 704#endif
 705int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 706int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 707struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
 708                                u16 downlink_seid, u8 enabled_tc);
 709void i40e_veb_release(struct i40e_veb *veb);
 710
 711int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc);
 712i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid);
 713void i40e_vsi_remove_pvid(struct i40e_vsi *vsi);
 714void i40e_vsi_reset_stats(struct i40e_vsi *vsi);
 715void i40e_pf_reset_stats(struct i40e_pf *pf);
 716#ifdef CONFIG_DEBUG_FS
 717void i40e_dbg_pf_init(struct i40e_pf *pf);
 718void i40e_dbg_pf_exit(struct i40e_pf *pf);
 719void i40e_dbg_init(void);
 720void i40e_dbg_exit(void);
 721#else
 722static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {}
 723static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
 724static inline void i40e_dbg_init(void) {}
 725static inline void i40e_dbg_exit(void) {}
 726#endif /* CONFIG_DEBUG_FS*/
 727/**
 728 * i40e_irq_dynamic_enable - Enable default interrupt generation settings
 729 * @vsi: pointer to a vsi
 730 * @vector: enable a particular Hw Interrupt vector, without base_vector
 731 **/
 732static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
 733{
 734        struct i40e_pf *pf = vsi->back;
 735        struct i40e_hw *hw = &pf->hw;
 736        u32 val;
 737
 738        val = I40E_PFINT_DYN_CTLN_INTENA_MASK |
 739              I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
 740              (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
 741        wr32(hw, I40E_PFINT_DYN_CTLN(vector + vsi->base_vector - 1), val);
 742        /* skip the flush */
 743}
 744
 745void i40e_irq_dynamic_disable(struct i40e_vsi *vsi, int vector);
 746void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
 747void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf);
 748#ifdef I40E_FCOE
 749struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
 750                                             struct net_device *netdev,
 751                                             struct rtnl_link_stats64 *storage);
 752int i40e_set_mac(struct net_device *netdev, void *p);
 753void i40e_set_rx_mode(struct net_device *netdev);
 754#endif
 755int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
 756#ifdef I40E_FCOE
 757void i40e_tx_timeout(struct net_device *netdev);
 758int i40e_vlan_rx_add_vid(struct net_device *netdev,
 759                         __always_unused __be16 proto, u16 vid);
 760int i40e_vlan_rx_kill_vid(struct net_device *netdev,
 761                          __always_unused __be16 proto, u16 vid);
 762#endif
 763int i40e_open(struct net_device *netdev);
 764int i40e_vsi_open(struct i40e_vsi *vsi);
 765void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
 766int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
 767int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
 768struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 769                                             bool is_vf, bool is_netdev);
 770bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
 771struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
 772                                      bool is_vf, bool is_netdev);
 773#ifdef I40E_FCOE
 774int i40e_close(struct net_device *netdev);
 775int i40e_setup_tc(struct net_device *netdev, u8 tc);
 776void i40e_netpoll(struct net_device *netdev);
 777int i40e_fcoe_enable(struct net_device *netdev);
 778int i40e_fcoe_disable(struct net_device *netdev);
 779int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt);
 780u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf);
 781void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi);
 782void i40e_fcoe_vsi_setup(struct i40e_pf *pf);
 783void i40e_init_pf_fcoe(struct i40e_pf *pf);
 784int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi);
 785void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi);
 786int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring,
 787                             union i40e_rx_desc *rx_desc,
 788                             struct sk_buff *skb);
 789void i40e_fcoe_handle_status(struct i40e_ring *rx_ring,
 790                             union i40e_rx_desc *rx_desc, u8 prog_id);
 791#endif /* I40E_FCOE */
 792void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 793#ifdef CONFIG_I40E_DCB
 794void i40e_dcbnl_flush_apps(struct i40e_pf *pf,
 795                           struct i40e_dcbx_config *old_cfg,
 796                           struct i40e_dcbx_config *new_cfg);
 797void i40e_dcbnl_set_all(struct i40e_vsi *vsi);
 798void i40e_dcbnl_setup(struct i40e_vsi *vsi);
 799bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
 800                            struct i40e_dcbx_config *old_cfg,
 801                            struct i40e_dcbx_config *new_cfg);
 802#endif /* CONFIG_I40E_DCB */
 803void i40e_ptp_rx_hang(struct i40e_vsi *vsi);
 804void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf);
 805void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index);
 806void i40e_ptp_set_increment(struct i40e_pf *pf);
 807int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 808int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 809void i40e_ptp_init(struct i40e_pf *pf);
 810void i40e_ptp_stop(struct i40e_pf *pf);
 811int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
 812i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf);
 813i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf);
 814i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf);
 815void i40e_print_link_message(struct i40e_vsi *vsi, bool isup);
 816#endif /* _I40E_H_ */
 817