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/sctp.h>
  46 #include <linux/pkt_sched.h>
  47 #include <linux/ipv6.h>
  48 #include <net/checksum.h>
  49 #include <net/ip6_checksum.h>
  50 #include <linux/ethtool.h>
  51 #include <linux/if_vlan.h>
  52 #include <linux/if_bridge.h>
  53 #include <linux/clocksource.h>
  54 #include <linux/net_tstamp.h>
  55 #include <linux/ptp_clock_kernel.h>
  56 #include "i40e_type.h"
  57 #include "i40e_prototype.h"
  58 #ifdef I40E_FCOE
  59 #include "i40e_fcoe.h"
  60 #endif
  61 #include "i40e_virtchnl.h"
  62 #include "i40e_virtchnl_pf.h"
  63 #include "i40e_txrx.h"
  64 #include "i40e_dcb.h"
  65
  66 /* Useful i40e defaults */
  67 #define I40E_BASE_PF_SEID     16
  68 #define I40E_BASE_VSI_SEID    512
  69 #define I40E_BASE_VEB_SEID    288
  70 #define I40E_MAX_VEB          16
  71
  72 #define I40E_MAX_NUM_DESCRIPTORS      4096
  73 #define I40E_MAX_CSR_SPACE (4 * 1024 * 1024 - 64 * 1024)
  74 #define I40E_DEFAULT_NUM_DESCRIPTORS  512
  75 #define I40E_REQ_DESCRIPTOR_MULTIPLE  32
  76 #define I40E_MIN_NUM_DESCRIPTORS      64
  77 #define I40E_MIN_MSIX                 2
  78 #define I40E_DEFAULT_NUM_VMDQ_VSI     8 /* max 256 VSIs */
  79 #define I40E_MIN_VSI_ALLOC            51 /* LAN, ATR, FCOE, 32 VF, 16 VMDQ */
  80 /* max 16 qps */
  81 #define i40e_default_queues_per_vmdq(pf) \
  82                 (((pf)->flags & I40E_FLAG_RSS_AQ_CAPABLE) ? 4 : 1)
  83 #define I40E_DEFAULT_QUEUES_PER_VF    4
  84 #define I40E_DEFAULT_QUEUES_PER_TC    1 /* should be a power of 2 */
  85 #define i40e_pf_get_max_q_per_tc(pf) \
  86                 (((pf)->flags & I40E_FLAG_128_QP_RSS_CAPABLE) ? 128 : 64)
  87 #define I40E_FDIR_RING                0
  88 #define I40E_FDIR_RING_COUNT          32
  89 #ifdef I40E_FCOE
  90 #define I40E_DEFAULT_FCOE             8 /* default number of QPs for FCoE */
  91 #define I40E_MINIMUM_FCOE             1 /* minimum number of QPs for FCoE */
  92 #endif /* I40E_FCOE */
  93 #define I40E_MAX_AQ_BUF_SIZE          4096
  94 #define I40E_AQ_LEN                   256
  95 #define I40E_AQ_WORK_LIMIT            66 /* max number of VFs + a little */
  96 #define I40E_MAX_USER_PRIORITY        8
  97 #define I40E_DEFAULT_MSG_ENABLE       4
  98 #define I40E_QUEUE_WAIT_RETRY_LIMIT   10
  99 #define I40E_INT_NAME_STR_LEN        (IFNAMSIZ + 16)
 100
 101 /* Ethtool Private Flags */
 102 #define I40E_PRIV_FLAGS_NPAR_FLAG       BIT(0)
 103 #define I40E_PRIV_FLAGS_LINKPOLL_FLAG   BIT(1)
 104 #define I40E_PRIV_FLAGS_FD_ATR          BIT(2)
 105 #define I40E_PRIV_FLAGS_VEB_STATS       BIT(3)
 106 #define I40E_PRIV_FLAGS_PS              BIT(4)
 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 */
 141 enum 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
 170 enum i40e_interrupt_policy {
 171         I40E_INTERRUPT_BEST_CASE,
 172         I40E_INTERRUPT_MEDIUM,
 173         I40E_INTERRUPT_LOWEST
 174 };
 175
 176 struct 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 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
 191
 192 enum i40e_fd_stat_idx {
 193         I40E_FD_STAT_ATR,
 194         I40E_FD_STAT_SB,
 195         I40E_FD_STAT_ATR_TUNNEL,
 196         I40E_FD_STAT_PF_COUNT
 197 };
 198 #define I40E_FD_STAT_PF_IDX(pf_id) ((pf_id) * I40E_FD_STAT_PF_COUNT)
 199 #define I40E_FD_ATR_STAT_IDX(pf_id) \
 200                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR)
 201 #define I40E_FD_SB_STAT_IDX(pf_id)  \
 202                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_SB)
 203 #define I40E_FD_ATR_TUNNEL_STAT_IDX(pf_id) \
 204                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR_TUNNEL)
 205
 206 struct i40e_fdir_filter {
 207         struct hlist_node fdir_node;
 208         /* filter ipnut set */
 209         u8 flow_type;
 210         u8 ip4_proto;
 211         /* TX packet view of src and dst */
 212         __be32 dst_ip[4];
 213         __be32 src_ip[4];
 214         __be16 src_port;
 215         __be16 dst_port;
 216         __be32 sctp_v_tag;
 217         /* filter control */
 218         u16 q_index;
 219         u8  flex_off;
 220         u8  pctype;
 221         u16 dest_vsi;
 222         u8  dest_ctl;
 223         u8  fd_status;
 224         u16 cnt_index;
 225         u32 fd_id;
 226 };
 227
 228 #define I40E_ETH_P_LLDP                 0x88cc
 229
 230 #define I40E_DCB_PRIO_TYPE_STRICT       0
 231 #define I40E_DCB_PRIO_TYPE_ETS          1
 232 #define I40E_DCB_STRICT_PRIO_CREDITS    127
 233 #define I40E_MAX_USER_PRIORITY  8
 234 /* DCB per TC information data structure */
 235 struct i40e_tc_info {
 236         u16     qoffset;        /* Queue offset from base queue */
 237         u16     qcount;         /* Total Queues */
 238         u8      netdev_tc;      /* Netdev TC index if netdev associated */
 239 };
 240
 241 /* TC configuration data structure */
 242 struct i40e_tc_configuration {
 243         u8      numtc;          /* Total number of enabled TCs */
 244         u8      enabled_tc;     /* TC map */
 245         struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
 246 };
 247
 248 struct i40e_udp_port_config {
 249         __be16 index;
 250         u8 type;
 251 };
 252
 253 /* struct that defines the Ethernet device */
 254 struct i40e_pf {
 255         struct pci_dev *pdev;
 256         struct i40e_hw hw;
 257         unsigned long state;
 258         struct msix_entry *msix_entries;
 259         bool fc_autoneg_status;
 260
 261         u16 eeprom_version;
 262         u16 num_vmdq_vsis;         /* num vmdq vsis this PF has set up */
 263         u16 num_vmdq_qps;          /* num queue pairs per vmdq pool */
 264         u16 num_vmdq_msix;         /* num queue vectors per vmdq pool */
 265         u16 num_req_vfs;           /* num VFs requested for this VF */
 266         u16 num_vf_qps;            /* num queue pairs per VF */
 267 #ifdef I40E_FCOE
 268         u16 num_fcoe_qps;          /* num fcoe queues this PF has set up */
 269         u16 num_fcoe_msix;         /* num queue vectors per fcoe pool */
 270 #endif /* I40E_FCOE */
 271         u16 num_lan_qps;           /* num lan queues this PF has set up */
 272         u16 num_lan_msix;          /* num queue vectors for the base PF vsi */
 273         int queues_left;           /* queues left unclaimed */
 274         u16 alloc_rss_size;        /* allocated RSS queues */
 275         u16 rss_size_max;          /* HW defined max RSS queues */
 276         u16 fdir_pf_filter_count;  /* num of guaranteed filters for this PF */
 277         u16 num_alloc_vsi;         /* num VSIs this driver supports */
 278         u8 atr_sample_rate;
 279         bool wol_en;
 280
 281         struct hlist_head fdir_filter_list;
 282         u16 fdir_pf_active_filters;
 283         unsigned long fd_flush_timestamp;
 284         u32 fd_flush_cnt;
 285         u32 fd_add_err;
 286         u32 fd_atr_cnt;
 287         u32 fd_tcp_rule;
 288
 289         struct i40e_udp_port_config udp_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
 290         u16 pending_udp_bitmap;
 291
 292         enum i40e_interrupt_policy int_policy;
 293         u16 rx_itr_default;
 294         u16 tx_itr_default;
 295         u32 msg_enable;
 296         char int_name[I40E_INT_NAME_STR_LEN];
 297         u16 adminq_work_limit; /* num of admin receive queue desc to process */
 298         unsigned long service_timer_period;
 299         unsigned long service_timer_previous;
 300         struct timer_list service_timer;
 301         struct work_struct service_task;
 302
 303         u64 flags;
 304 #define I40E_FLAG_RX_CSUM_ENABLED               BIT_ULL(1)
 305 #define I40E_FLAG_MSI_ENABLED                   BIT_ULL(2)
 306 #define I40E_FLAG_MSIX_ENABLED                  BIT_ULL(3)
 307 #define I40E_FLAG_RX_1BUF_ENABLED               BIT_ULL(4)
 308 #define I40E_FLAG_RX_PS_ENABLED                 BIT_ULL(5)
 309 #define I40E_FLAG_RSS_ENABLED                   BIT_ULL(6)
 310 #define I40E_FLAG_VMDQ_ENABLED                  BIT_ULL(7)
 311 #define I40E_FLAG_FDIR_REQUIRES_REINIT          BIT_ULL(8)
 312 #define I40E_FLAG_NEED_LINK_UPDATE              BIT_ULL(9)
 313 #define I40E_FLAG_IWARP_ENABLED                 BIT_ULL(10)
 314 #ifdef I40E_FCOE
 315 #define I40E_FLAG_FCOE_ENABLED                  BIT_ULL(11)
 316 #endif /* I40E_FCOE */
 317 #define I40E_FLAG_16BYTE_RX_DESC_ENABLED        BIT_ULL(13)
 318 #define I40E_FLAG_CLEAN_ADMINQ                  BIT_ULL(14)
 319 #define I40E_FLAG_FILTER_SYNC                   BIT_ULL(15)
 320 #define I40E_FLAG_PROCESS_MDD_EVENT             BIT_ULL(17)
 321 #define I40E_FLAG_PROCESS_VFLR_EVENT            BIT_ULL(18)
 322 #define I40E_FLAG_SRIOV_ENABLED                 BIT_ULL(19)
 323 #define I40E_FLAG_DCB_ENABLED                   BIT_ULL(20)
 324 #define I40E_FLAG_FD_SB_ENABLED                 BIT_ULL(21)
 325 #define I40E_FLAG_FD_ATR_ENABLED                BIT_ULL(22)
 326 #define I40E_FLAG_PTP                           BIT_ULL(25)
 327 #define I40E_FLAG_MFP_ENABLED                   BIT_ULL(26)
 328 #define I40E_FLAG_UDP_FILTER_SYNC               BIT_ULL(27)
 329 #define I40E_FLAG_PORT_ID_VALID                 BIT_ULL(28)
 330 #define I40E_FLAG_DCB_CAPABLE                   BIT_ULL(29)
 331 #define I40E_FLAG_RSS_AQ_CAPABLE                BIT_ULL(31)
 332 #define I40E_FLAG_HW_ATR_EVICT_CAPABLE          BIT_ULL(32)
 333 #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE        BIT_ULL(33)
 334 #define I40E_FLAG_128_QP_RSS_CAPABLE            BIT_ULL(34)
 335 #define I40E_FLAG_WB_ON_ITR_CAPABLE             BIT_ULL(35)
 336 #define I40E_FLAG_VEB_STATS_ENABLED             BIT_ULL(37)
 337 #define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE   BIT_ULL(38)
 338 #define I40E_FLAG_LINK_POLLING_ENABLED          BIT_ULL(39)
 339 #define I40E_FLAG_VEB_MODE_ENABLED              BIT_ULL(40)
 340 #define I40E_FLAG_GENEVE_OFFLOAD_CAPABLE        BIT_ULL(41)
 341 #define I40E_FLAG_NO_PCI_LINK_CHECK             BIT_ULL(42)
 342 #define I40E_FLAG_PF_MAC                        BIT_ULL(50)
 343
 344         /* tracks features that get auto disabled by errors */
 345         u64 auto_disable_flags;
 346
 347 #ifdef I40E_FCOE
 348         struct i40e_fcoe fcoe;
 349
 350 #endif /* I40E_FCOE */
 351         bool stat_offsets_loaded;
 352         struct i40e_hw_port_stats stats;
 353         struct i40e_hw_port_stats stats_offsets;
 354         u32 tx_timeout_count;
 355         u32 tx_timeout_recovery_level;
 356         unsigned long tx_timeout_last_recovery;
 357         u32 tx_sluggish_count;
 358         u32 hw_csum_rx_error;
 359         u32 led_status;
 360         u16 corer_count; /* Core reset count */
 361         u16 globr_count; /* Global reset count */
 362         u16 empr_count; /* EMP reset count */
 363         u16 pfr_count; /* PF reset count */
 364         u16 sw_int_count; /* SW interrupt count */
 365
 366         struct mutex switch_mutex;
 367         u16 lan_vsi;       /* our default LAN VSI */
 368         u16 lan_veb;       /* initial relay, if exists */
 369 #define I40E_NO_VEB   0xffff
 370 #define I40E_NO_VSI   0xffff
 371         u16 next_vsi;      /* Next unallocated VSI - 0-based! */
 372         struct i40e_vsi **vsi;
 373         struct i40e_veb *veb[I40E_MAX_VEB];
 374
 375         struct i40e_lump_tracking *qp_pile;
 376         struct i40e_lump_tracking *irq_pile;
 377
 378         /* switch config info */
 379         u16 pf_seid;
 380         u16 main_vsi_seid;
 381         u16 mac_seid;
 382         struct kobject *switch_kobj;
 383 #ifdef CONFIG_DEBUG_FS
 384         struct dentry *i40e_dbg_pf;
 385 #endif /* CONFIG_DEBUG_FS */
 386         bool cur_promisc;
 387
 388         u16 instance; /* A unique number per i40e_pf instance in the system */
 389
 390         /* sr-iov config info */
 391         struct i40e_vf *vf;
 392         int num_alloc_vfs;      /* actual number of VFs allocated */
 393         u32 vf_aq_requests;
 394
 395         /* DCBx/DCBNL capability for PF that indicates
 396          * whether DCBx is managed by firmware or host
 397          * based agent (LLDPAD). Also, indicates what
 398          * flavor of DCBx protocol (IEEE/CEE) is supported
 399          * by the device. For now we're supporting IEEE
 400          * mode only.
 401          */
 402         u16 dcbx_cap;
 403
 404         u32     fcoe_hmc_filt_num;
 405         u32     fcoe_hmc_cntx_num;
 406         struct i40e_filter_control_settings filter_settings;
 407
 408         struct ptp_clock *ptp_clock;
 409         struct ptp_clock_info ptp_caps;
 410         struct sk_buff *ptp_tx_skb;
 411         struct hwtstamp_config tstamp_config;
 412         unsigned long last_rx_ptp_check;
 413         spinlock_t tmreg_lock; /* Used to protect the device time registers. */
 414         u64 ptp_base_adj;
 415         u32 tx_hwtstamp_timeouts;
 416         u32 rx_hwtstamp_cleared;
 417         bool ptp_tx;
 418         bool ptp_rx;
 419         u16 rss_table_size; /* HW RSS table size */
 420         /* These are only valid in NPAR modes */
 421         u32 npar_max_bw;
 422         u32 npar_min_bw;
 423
 424         u32 ioremap_len;
 425         u32 fd_inv;
 426 };
 427
 428 struct i40e_mac_filter {
 429         struct list_head list;
 430         u8 macaddr[ETH_ALEN];
 431 #define I40E_VLAN_ANY -1
 432         s16 vlan;
 433         u8 counter;             /* number of instances of this filter */
 434         bool is_vf;             /* filter belongs to a VF */
 435         bool is_netdev;         /* filter belongs to a netdev */
 436         bool changed;           /* filter needs to be sync'd to the HW */
 437         bool is_laa;            /* filter is a Locally Administered Address */
 438 };
 439
 440 struct i40e_veb {
 441         struct i40e_pf *pf;
 442         u16 idx;
 443         u16 veb_idx;           /* index of VEB parent */
 444         u16 seid;
 445         u16 uplink_seid;
 446         u16 stats_idx;           /* index of VEB parent */
 447         u8  enabled_tc;
 448         u16 bridge_mode;        /* Bridge Mode (VEB/VEPA) */
 449         u16 flags;
 450         u16 bw_limit;
 451         u8  bw_max_quanta;
 452         bool is_abs_credits;
 453         u8  bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS];
 454         u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 455         u8  bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 456         struct kobject *kobj;
 457         bool stat_offsets_loaded;
 458         struct i40e_eth_stats stats;
 459         struct i40e_eth_stats stats_offsets;
 460         struct i40e_veb_tc_stats tc_stats;
 461         struct i40e_veb_tc_stats tc_stats_offsets;
 462 };
 463
 464 /* struct that defines a VSI, associated with a dev */
 465 struct i40e_vsi {
 466         struct net_device *netdev;
 467         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 468         bool netdev_registered;
 469         bool stat_offsets_loaded;
 470
 471         u32 current_netdev_flags;
 472         unsigned long state;
 473 #define I40E_VSI_FLAG_FILTER_CHANGED    BIT(0)
 474 #define I40E_VSI_FLAG_VEB_OWNER         BIT(1)
 475         unsigned long flags;
 476
 477         /* Per VSI lock to protect elements/list (MAC filter) */
 478         spinlock_t mac_filter_list_lock;
 479         struct list_head mac_filter_list;
 480
 481         /* VSI stats */
 482         struct rtnl_link_stats64 net_stats;
 483         struct rtnl_link_stats64 net_stats_offsets;
 484         struct i40e_eth_stats eth_stats;
 485         struct i40e_eth_stats eth_stats_offsets;
 486 #ifdef I40E_FCOE
 487         struct i40e_fcoe_stats fcoe_stats;
 488         struct i40e_fcoe_stats fcoe_stats_offsets;
 489         bool fcoe_stat_offsets_loaded;
 490 #endif
 491         u32 tx_restart;
 492         u32 tx_busy;
 493         u64 tx_linearize;
 494         u64 tx_force_wb;
 495         u32 rx_buf_failed;
 496         u32 rx_page_failed;
 497
 498         /* These are containers of ring pointers, allocated at run-time */
 499         struct i40e_ring **rx_rings;
 500         struct i40e_ring **tx_rings;
 501
 502         u16 work_limit;
 503         /* high bit set means dynamic, use accessor routines to read/write.
 504          * hardware only supports 2us resolution for the ITR registers.
 505          * these values always store the USER setting, and must be converted
 506          * before programming to a register.
 507          */
 508         u16 rx_itr_setting;
 509         u16 tx_itr_setting;
 510         u16 int_rate_limit;  /* value in usecs */
 511
 512         u16 rss_table_size; /* HW RSS table size */
 513         u16 rss_size;       /* Allocated RSS queues */
 514         u8  *rss_hkey_user; /* User configured hash keys */
 515         u8  *rss_lut_user;  /* User configured lookup table entries */
 516
 517         u16 max_frame;
 518         u16 rx_hdr_len;
 519         u16 rx_buf_len;
 520         u8  dtype;
 521
 522         /* List of q_vectors allocated to this VSI */
 523         struct i40e_q_vector **q_vectors;
 524         int num_q_vectors;
 525         int base_vector;
 526         bool irqs_ready;
 527
 528         u16 seid;            /* HW index of this VSI (absolute index) */
 529         u16 id;              /* VSI number */
 530         u16 uplink_seid;
 531
 532         u16 base_queue;      /* vsi's first queue in hw array */
 533         u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */
 534         u16 req_queue_pairs; /* User requested queue pairs */
 535         u16 num_queue_pairs; /* Used tx and rx pairs */
 536         u16 num_desc;
 537         enum i40e_vsi_type type;  /* VSI type, e.g., LAN, FCoE, etc */
 538         u16 vf_id;              /* Virtual function ID for SRIOV VSIs */
 539
 540         struct i40e_tc_configuration tc_config;
 541         struct i40e_aqc_vsi_properties_data info;
 542
 543         /* VSI BW limit (absolute across all TCs) */
 544         u16 bw_limit;           /* VSI BW Limit (0 = disabled) */
 545         u8  bw_max_quanta;      /* Max Quanta when BW limit is enabled */
 546
 547         /* Relative TC credits across VSIs */
 548         u8  bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS];
 549         /* TC BW limit credits within VSI */
 550         u16  bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 551         /* TC BW limit max quanta within VSI */
 552         u8  bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 553
 554         struct i40e_pf *back;  /* Backreference to associated PF */
 555         u16 idx;               /* index in pf->vsi[] */
 556         u16 veb_idx;           /* index of VEB parent */
 557         struct kobject *kobj;  /* sysfs object */
 558         bool current_isup;     /* Sync 'link up' logging */
 559
 560         /* VSI specific handlers */
 561         irqreturn_t (*irq_handler)(int irq, void *data);
 562
 563         /* current rxnfc data */
 564         struct ethtool_rxnfc rxnfc; /* current rss hash opts */
 565 } ____cacheline_internodealigned_in_smp;
 566
 567 struct i40e_netdev_priv {
 568         struct i40e_vsi *vsi;
 569 };
 570
 571 /* struct that defines an interrupt vector */
 572 struct i40e_q_vector {
 573         struct i40e_vsi *vsi;
 574
 575         u16 v_idx;              /* index in the vsi->q_vector array. */
 576         u16 reg_idx;            /* register index of the interrupt */
 577
 578         struct napi_struct napi;
 579
 580         struct i40e_ring_container rx;
 581         struct i40e_ring_container tx;
 582
 583         u8 num_ringpairs;       /* total number of ring pairs in vector */
 584
 585 #define I40E_Q_VECTOR_HUNG_DETECT 0 /* Bit Index for hung detection logic */
 586         unsigned long hung_detected; /* Set/Reset for hung_detection logic */
 587
 588         cpumask_t affinity_mask;
 589         struct rcu_head rcu;    /* to avoid race with update stats on free */
 590         char name[I40E_INT_NAME_STR_LEN];
 591         bool arm_wb_state;
 592 #define ITR_COUNTDOWN_START 100
 593         u8 itr_countdown;       /* when 0 should adjust ITR */
 594 } ____cacheline_internodealigned_in_smp;
 595
 596 /* lan device */
 597 struct i40e_device {
 598         struct list_head list;
 599         struct i40e_pf *pf;
 600 };
 601
 602 /**
 603  * i40e_nvm_version_str - format the NVM version strings
 604  * @hw: ptr to the hardware info
 605  **/
 606 static inline char *i40e_nvm_version_str(struct i40e_hw *hw)
 607 {
 608         static char buf[32];
 609         u32 full_ver;
 610         u8 ver, patch;
 611         u16 build;
 612
 613         full_ver = hw->nvm.oem_ver;
 614         ver = (u8)(full_ver >> I40E_OEM_VER_SHIFT);
 615         build = (u16)((full_ver >> I40E_OEM_VER_BUILD_SHIFT) &
 616                  I40E_OEM_VER_BUILD_MASK);
 617         patch = (u8)(full_ver & I40E_OEM_VER_PATCH_MASK);
 618
 619         snprintf(buf, sizeof(buf),
 620                  "%x.%02x 0x%x %d.%d.%d",
 621                  (hw->nvm.version & I40E_NVM_VERSION_HI_MASK) >>
 622                         I40E_NVM_VERSION_HI_SHIFT,
 623                  (hw->nvm.version & I40E_NVM_VERSION_LO_MASK) >>
 624                         I40E_NVM_VERSION_LO_SHIFT,
 625                  hw->nvm.eetrack, ver, build, patch);
 626
 627         return buf;
 628 }
 629
 630 /**
 631  * i40e_netdev_to_pf: Retrieve the PF struct for given netdev
 632  * @netdev: the corresponding netdev
 633  *
 634  * Return the PF struct for the given netdev
 635  **/
 636 static inline struct i40e_pf *i40e_netdev_to_pf(struct net_device *netdev)
 637 {
 638         struct i40e_netdev_priv *np = netdev_priv(netdev);
 639         struct i40e_vsi *vsi = np->vsi;
 640
 641         return vsi->back;
 642 }
 643
 644 static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
 645                                 irqreturn_t (*irq_handler)(int, void *))
 646 {
 647         vsi->irq_handler = irq_handler;
 648 }
 649
 650 /**
 651  * i40e_rx_is_programming_status - check for programming status descriptor
 652  * @qw: the first quad word of the program status descriptor
 653  *
 654  * The value of in the descriptor length field indicate if this
 655  * is a programming status descriptor for flow director or FCoE
 656  * by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise
 657  * it is a packet descriptor.
 658  **/
 659 static inline bool i40e_rx_is_programming_status(u64 qw)
 660 {
 661         return I40E_RX_PROG_STATUS_DESC_LENGTH ==
 662                 (qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT);
 663 }
 664
 665 /**
 666  * i40e_get_fd_cnt_all - get the total FD filter space available
 667  * @pf: pointer to the PF struct
 668  **/
 669 static inline int i40e_get_fd_cnt_all(struct i40e_pf *pf)
 670 {
 671         return pf->hw.fdir_shared_filter_count + pf->fdir_pf_filter_count;
 672 }
 673
 674 /* needed by i40e_ethtool.c */
 675 int i40e_up(struct i40e_vsi *vsi);
 676 void i40e_down(struct i40e_vsi *vsi);
 677 extern const char i40e_driver_name[];
 678 extern const char i40e_driver_version_str[];
 679 void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags);
 680 void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags);
 681 int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 682 int i40e_get_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 683 struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id);
 684 void i40e_update_stats(struct i40e_vsi *vsi);
 685 void i40e_update_eth_stats(struct i40e_vsi *vsi);
 686 struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi);
 687 int i40e_fetch_switch_configuration(struct i40e_pf *pf,
 688                                     bool printconfig);
 689
 690 int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
 691                              struct i40e_pf *pf, bool add);
 692 int i40e_add_del_fdir(struct i40e_vsi *vsi,
 693                       struct i40e_fdir_filter *input, bool add);
 694 void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
 695 u32 i40e_get_current_fd_count(struct i40e_pf *pf);
 696 u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
 697 u32 i40e_get_current_atr_cnt(struct i40e_pf *pf);
 698 u32 i40e_get_global_fd_count(struct i40e_pf *pf);
 699 bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features);
 700 void i40e_set_ethtool_ops(struct net_device *netdev);
 701 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 702                                         u8 *macaddr, s16 vlan,
 703                                         bool is_vf, bool is_netdev);
 704 void i40e_del_filter(struct i40e_vsi *vsi, u8 *macaddr, s16 vlan,
 705                      bool is_vf, bool is_netdev);
 706 int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
 707 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 708                                 u16 uplink, u32 param1);
 709 int i40e_vsi_release(struct i40e_vsi *vsi);
 710 struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf, enum i40e_vsi_type type,
 711                                  struct i40e_vsi *start_vsi);
 712 #ifdef I40E_FCOE
 713 void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 714                               struct i40e_vsi_context *ctxt,
 715                               u8 enabled_tc, bool is_add);
 716 #endif
 717 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 718 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 719 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
 720                                 u16 downlink_seid, u8 enabled_tc);
 721 void i40e_veb_release(struct i40e_veb *veb);
 722
 723 int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc);
 724 int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid);
 725 void i40e_vsi_remove_pvid(struct i40e_vsi *vsi);
 726 void i40e_vsi_reset_stats(struct i40e_vsi *vsi);
 727 void i40e_pf_reset_stats(struct i40e_pf *pf);
 728 #ifdef CONFIG_DEBUG_FS
 729 void i40e_dbg_pf_init(struct i40e_pf *pf);
 730 void i40e_dbg_pf_exit(struct i40e_pf *pf);
 731 void i40e_dbg_init(void);
 732 void i40e_dbg_exit(void);
 733 #else
 734 static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {}
 735 static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
 736 static inline void i40e_dbg_init(void) {}
 737 static inline void i40e_dbg_exit(void) {}
 738 #endif /* CONFIG_DEBUG_FS*/
 739 /**
 740  * i40e_irq_dynamic_enable - Enable default interrupt generation settings
 741  * @vsi: pointer to a vsi
 742  * @vector: enable a particular Hw Interrupt vector, without base_vector
 743  **/
 744 static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
 745 {
 746         struct i40e_pf *pf = vsi->back;
 747         struct i40e_hw *hw = &pf->hw;
 748         u32 val;
 749
 750         val = I40E_PFINT_DYN_CTLN_INTENA_MASK |
 751               I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
 752               (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
 753         wr32(hw, I40E_PFINT_DYN_CTLN(vector + vsi->base_vector - 1), val);
 754         /* skip the flush */
 755 }
 756
 757 void i40e_irq_dynamic_disable(struct i40e_vsi *vsi, int vector);
 758 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
 759 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf);
 760 #ifdef I40E_FCOE
 761 struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
 762                                              struct net_device *netdev,
 763                                              struct rtnl_link_stats64 *storage);
 764 int i40e_set_mac(struct net_device *netdev, void *p);
 765 void i40e_set_rx_mode(struct net_device *netdev);
 766 #endif
 767 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
 768 #ifdef I40E_FCOE
 769 void i40e_tx_timeout(struct net_device *netdev);
 770 int i40e_vlan_rx_add_vid(struct net_device *netdev,
 771                          __always_unused __be16 proto, u16 vid);
 772 int i40e_vlan_rx_kill_vid(struct net_device *netdev,
 773                           __always_unused __be16 proto, u16 vid);
 774 #endif
 775 int i40e_open(struct net_device *netdev);
 776 int i40e_vsi_open(struct i40e_vsi *vsi);
 777 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
 778 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
 779 int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
 780 struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 781                                              bool is_vf, bool is_netdev);
 782 int i40e_del_mac_all_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 783                           bool is_vf, bool is_netdev);
 784 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
 785 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
 786                                       bool is_vf, bool is_netdev);
 787 #ifdef I40E_FCOE
 788 int i40e_close(struct net_device *netdev);
 789 int i40e_setup_tc(struct net_device *netdev, u8 tc);
 790 void i40e_netpoll(struct net_device *netdev);
 791 int i40e_fcoe_enable(struct net_device *netdev);
 792 int i40e_fcoe_disable(struct net_device *netdev);
 793 int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt);
 794 u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf);
 795 void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi);
 796 void i40e_fcoe_vsi_setup(struct i40e_pf *pf);
 797 void i40e_init_pf_fcoe(struct i40e_pf *pf);
 798 int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi);
 799 void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi);
 800 int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring,
 801                              union i40e_rx_desc *rx_desc,
 802                              struct sk_buff *skb);
 803 void i40e_fcoe_handle_status(struct i40e_ring *rx_ring,
 804                              union i40e_rx_desc *rx_desc, u8 prog_id);
 805 #endif /* I40E_FCOE */
 806 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 807 #ifdef CONFIG_I40E_DCB
 808 void i40e_dcbnl_flush_apps(struct i40e_pf *pf,
 809                            struct i40e_dcbx_config *old_cfg,
 810                            struct i40e_dcbx_config *new_cfg);
 811 void i40e_dcbnl_set_all(struct i40e_vsi *vsi);
 812 void i40e_dcbnl_setup(struct i40e_vsi *vsi);
 813 bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
 814                             struct i40e_dcbx_config *old_cfg,
 815                             struct i40e_dcbx_config *new_cfg);
 816 #endif /* CONFIG_I40E_DCB */
 817 void i40e_ptp_rx_hang(struct i40e_vsi *vsi);
 818 void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf);
 819 void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index);
 820 void i40e_ptp_set_increment(struct i40e_pf *pf);
 821 int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 822 int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 823 void i40e_ptp_init(struct i40e_pf *pf);
 824 void i40e_ptp_stop(struct i40e_pf *pf);
 825 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
 826 i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf);
 827 i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf);
 828 i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf);
 829 void i40e_print_link_message(struct i40e_vsi *vsi, bool isup);
 830 #endif /* _I40E_H_ */