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

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2016 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_client.h"
  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_MAX_VEB          16
  69
  70 #define I40E_MAX_NUM_DESCRIPTORS      4096
  71 #define I40E_MAX_CSR_SPACE (4 * 1024 * 1024 - 64 * 1024)
  72 #define I40E_DEFAULT_NUM_DESCRIPTORS  512
  73 #define I40E_REQ_DESCRIPTOR_MULTIPLE  32
  74 #define I40E_MIN_NUM_DESCRIPTORS      64
  75 #define I40E_MIN_MSIX                 2
  76 #define I40E_DEFAULT_NUM_VMDQ_VSI     8 /* max 256 VSIs */
  77 #define I40E_MIN_VSI_ALLOC            51 /* LAN, ATR, FCOE, 32 VF, 16 VMDQ */
  78 /* max 16 qps */
  79 #define i40e_default_queues_per_vmdq(pf) \
  80                 (((pf)->flags & I40E_FLAG_RSS_AQ_CAPABLE) ? 4 : 1)
  81 #define I40E_DEFAULT_QUEUES_PER_VF    4
  82 #define I40E_DEFAULT_QUEUES_PER_TC    1 /* should be a power of 2 */
  83 #define i40e_pf_get_max_q_per_tc(pf) \
  84                 (((pf)->flags & I40E_FLAG_128_QP_RSS_CAPABLE) ? 128 : 64)
  85 #define I40E_FDIR_RING                0
  86 #define I40E_FDIR_RING_COUNT          32
  87 #ifdef I40E_FCOE
  88 #define I40E_DEFAULT_FCOE             8 /* default number of QPs for FCoE */
  89 #define I40E_MINIMUM_FCOE             1 /* minimum number of QPs for FCoE */
  90 #endif /* I40E_FCOE */
  91 #define I40E_MAX_AQ_BUF_SIZE          4096
  92 #define I40E_AQ_LEN                   256
  93 #define I40E_AQ_WORK_LIMIT            66 /* max number of VFs + a little */
  94 #define I40E_MAX_USER_PRIORITY        8
  95 #define I40E_DEFAULT_MSG_ENABLE       4
  96 #define I40E_QUEUE_WAIT_RETRY_LIMIT   10
  97 #define I40E_INT_NAME_STR_LEN        (IFNAMSIZ + 16)
  98
  99 /* Ethtool Private Flags */
 100 #define I40E_PRIV_FLAGS_MFP_FLAG                BIT(0)
 101 #define I40E_PRIV_FLAGS_LINKPOLL_FLAG           BIT(1)
 102 #define I40E_PRIV_FLAGS_FD_ATR                  BIT(2)
 103 #define I40E_PRIV_FLAGS_VEB_STATS               BIT(3)
 104 #define I40E_PRIV_FLAGS_HW_ATR_EVICT            BIT(4)
 105 #define I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT    BIT(5)
 106
 107 #define I40E_NVM_VERSION_LO_SHIFT  0
 108 #define I40E_NVM_VERSION_LO_MASK   (0xff << I40E_NVM_VERSION_LO_SHIFT)
 109 #define I40E_NVM_VERSION_HI_SHIFT  12
 110 #define I40E_NVM_VERSION_HI_MASK   (0xf << I40E_NVM_VERSION_HI_SHIFT)
 111 #define I40E_OEM_VER_BUILD_MASK    0xffff
 112 #define I40E_OEM_VER_PATCH_MASK    0xff
 113 #define I40E_OEM_VER_BUILD_SHIFT   8
 114 #define I40E_OEM_VER_SHIFT         24
 115 #define I40E_PHY_DEBUG_ALL \
 116         (I40E_AQ_PHY_DEBUG_DISABLE_LINK_FW | \
 117         I40E_AQ_PHY_DEBUG_DISABLE_ALL_LINK_FW)
 118
 119 /* The values in here are decimal coded as hex as is the case in the NVM map*/
 120 #define I40E_CURRENT_NVM_VERSION_HI 0x2
 121 #define I40E_CURRENT_NVM_VERSION_LO 0x40
 122
 123 /* magic for getting defines into strings */
 124 #define STRINGIFY(foo)  #foo
 125 #define XSTRINGIFY(bar) STRINGIFY(bar)
 126
 127 #define I40E_RX_DESC(R, i)                      \
 128         (&(((union i40e_32byte_rx_desc *)((R)->desc))[i]))
 129 #define I40E_TX_DESC(R, i)                      \
 130         (&(((struct i40e_tx_desc *)((R)->desc))[i]))
 131 #define I40E_TX_CTXTDESC(R, i)                  \
 132         (&(((struct i40e_tx_context_desc *)((R)->desc))[i]))
 133 #define I40E_TX_FDIRDESC(R, i)                  \
 134         (&(((struct i40e_filter_program_desc *)((R)->desc))[i]))
 135
 136 /* default to trying for four seconds */
 137 #define I40E_TRY_LINK_TIMEOUT (4 * HZ)
 138
 139 /**
 140  * i40e_is_mac_710 - Return true if MAC is X710/XL710
 141  * @hw: ptr to the hardware info
 142  **/
 143 static inline bool i40e_is_mac_710(struct i40e_hw *hw)
 144 {
 145         if ((hw->mac.type == I40E_MAC_X710) ||
 146             (hw->mac.type == I40E_MAC_XL710))
 147                 return true;
 148
 149         return false;
 150 }
 151
 152 /* driver state flags */
 153 enum i40e_state_t {
 154         __I40E_TESTING,
 155         __I40E_CONFIG_BUSY,
 156         __I40E_CONFIG_DONE,
 157         __I40E_DOWN,
 158         __I40E_NEEDS_RESTART,
 159         __I40E_SERVICE_SCHED,
 160         __I40E_ADMINQ_EVENT_PENDING,
 161         __I40E_MDD_EVENT_PENDING,
 162         __I40E_VFLR_EVENT_PENDING,
 163         __I40E_RESET_RECOVERY_PENDING,
 164         __I40E_RESET_INTR_RECEIVED,
 165         __I40E_REINIT_REQUESTED,
 166         __I40E_PF_RESET_REQUESTED,
 167         __I40E_CORE_RESET_REQUESTED,
 168         __I40E_GLOBAL_RESET_REQUESTED,
 169         __I40E_EMP_RESET_REQUESTED,
 170         __I40E_EMP_RESET_INTR_RECEIVED,
 171         __I40E_FILTER_OVERFLOW_PROMISC,
 172         __I40E_SUSPENDED,
 173         __I40E_PTP_TX_IN_PROGRESS,
 174         __I40E_BAD_EEPROM,
 175         __I40E_DOWN_REQUESTED,
 176         __I40E_FD_FLUSH_REQUESTED,
 177         __I40E_RESET_FAILED,
 178         __I40E_PORT_TX_SUSPENDED,
 179         __I40E_VF_DISABLE,
 180 };
 181
 182 enum i40e_interrupt_policy {
 183         I40E_INTERRUPT_BEST_CASE,
 184         I40E_INTERRUPT_MEDIUM,
 185         I40E_INTERRUPT_LOWEST
 186 };
 187
 188 struct i40e_lump_tracking {
 189         u16 num_entries;
 190         u16 search_hint;
 191         u16 list[0];
 192 #define I40E_PILE_VALID_BIT  0x8000
 193 #define I40E_IWARP_IRQ_PILE_ID  (I40E_PILE_VALID_BIT - 2)
 194 };
 195
 196 #define I40E_DEFAULT_ATR_SAMPLE_RATE    20
 197 #define I40E_FDIR_MAX_RAW_PACKET_SIZE   512
 198 #define I40E_FDIR_BUFFER_FULL_MARGIN    10
 199 #define I40E_FDIR_BUFFER_HEAD_ROOM      32
 200 #define I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR (I40E_FDIR_BUFFER_HEAD_ROOM * 4)
 201
 202 #define I40E_HKEY_ARRAY_SIZE ((I40E_PFQF_HKEY_MAX_INDEX + 1) * 4)
 203 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4)
 204 #define I40E_VF_HLUT_ARRAY_SIZE ((I40E_VFQF_HLUT1_MAX_INDEX + 1) * 4)
 205
 206 enum i40e_fd_stat_idx {
 207         I40E_FD_STAT_ATR,
 208         I40E_FD_STAT_SB,
 209         I40E_FD_STAT_ATR_TUNNEL,
 210         I40E_FD_STAT_PF_COUNT
 211 };
 212 #define I40E_FD_STAT_PF_IDX(pf_id) ((pf_id) * I40E_FD_STAT_PF_COUNT)
 213 #define I40E_FD_ATR_STAT_IDX(pf_id) \
 214                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR)
 215 #define I40E_FD_SB_STAT_IDX(pf_id)  \
 216                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_SB)
 217 #define I40E_FD_ATR_TUNNEL_STAT_IDX(pf_id) \
 218                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR_TUNNEL)
 219
 220 struct i40e_fdir_filter {
 221         struct hlist_node fdir_node;
 222         /* filter ipnut set */
 223         u8 flow_type;
 224         u8 ip4_proto;
 225         /* TX packet view of src and dst */
 226         __be32 dst_ip[4];
 227         __be32 src_ip[4];
 228         __be16 src_port;
 229         __be16 dst_port;
 230         __be32 sctp_v_tag;
 231         /* filter control */
 232         u16 q_index;
 233         u8  flex_off;
 234         u8  pctype;
 235         u16 dest_vsi;
 236         u8  dest_ctl;
 237         u8  fd_status;
 238         u16 cnt_index;
 239         u32 fd_id;
 240 };
 241
 242 #define I40E_ETH_P_LLDP                 0x88cc
 243
 244 #define I40E_DCB_PRIO_TYPE_STRICT       0
 245 #define I40E_DCB_PRIO_TYPE_ETS          1
 246 #define I40E_DCB_STRICT_PRIO_CREDITS    127
 247 /* DCB per TC information data structure */
 248 struct i40e_tc_info {
 249         u16     qoffset;        /* Queue offset from base queue */
 250         u16     qcount;         /* Total Queues */
 251         u8      netdev_tc;      /* Netdev TC index if netdev associated */
 252 };
 253
 254 /* TC configuration data structure */
 255 struct i40e_tc_configuration {
 256         u8      numtc;          /* Total number of enabled TCs */
 257         u8      enabled_tc;     /* TC map */
 258         struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
 259 };
 260
 261 struct i40e_udp_port_config {
 262         __be16 index;
 263         u8 type;
 264 };
 265
 266 /* struct that defines the Ethernet device */
 267 struct i40e_pf {
 268         struct pci_dev *pdev;
 269         struct i40e_hw hw;
 270         unsigned long state;
 271         struct msix_entry *msix_entries;
 272         bool fc_autoneg_status;
 273
 274         u16 eeprom_version;
 275         u16 num_vmdq_vsis;         /* num vmdq vsis this PF has set up */
 276         u16 num_vmdq_qps;          /* num queue pairs per vmdq pool */
 277         u16 num_vmdq_msix;         /* num queue vectors per vmdq pool */
 278         u16 num_req_vfs;           /* num VFs requested for this VF */
 279         u16 num_vf_qps;            /* num queue pairs per VF */
 280 #ifdef I40E_FCOE
 281         u16 num_fcoe_qps;          /* num fcoe queues this PF has set up */
 282         u16 num_fcoe_msix;         /* num queue vectors per fcoe pool */
 283 #endif /* I40E_FCOE */
 284         u16 num_lan_qps;           /* num lan queues this PF has set up */
 285         u16 num_lan_msix;          /* num queue vectors for the base PF vsi */
 286         u16 num_fdsb_msix;         /* num queue vectors for sideband Fdir */
 287         u16 num_iwarp_msix;        /* num of iwarp vectors for this PF */
 288         int iwarp_base_vector;
 289         int queues_left;           /* queues left unclaimed */
 290         u16 alloc_rss_size;        /* allocated RSS queues */
 291         u16 rss_size_max;          /* HW defined max RSS queues */
 292         u16 fdir_pf_filter_count;  /* num of guaranteed filters for this PF */
 293         u16 num_alloc_vsi;         /* num VSIs this driver supports */
 294         u8 atr_sample_rate;
 295         bool wol_en;
 296
 297         struct hlist_head fdir_filter_list;
 298         u16 fdir_pf_active_filters;
 299         unsigned long fd_flush_timestamp;
 300         u32 fd_flush_cnt;
 301         u32 fd_add_err;
 302         u32 fd_atr_cnt;
 303         u32 fd_tcp_rule;
 304
 305         struct i40e_udp_port_config udp_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
 306         u16 pending_udp_bitmap;
 307
 308         enum i40e_interrupt_policy int_policy;
 309         u16 rx_itr_default;
 310         u16 tx_itr_default;
 311         u32 msg_enable;
 312         char int_name[I40E_INT_NAME_STR_LEN];
 313         u16 adminq_work_limit; /* num of admin receive queue desc to process */
 314         unsigned long service_timer_period;
 315         unsigned long service_timer_previous;
 316         struct timer_list service_timer;
 317         struct work_struct service_task;
 318
 319         u64 flags;
 320 #define I40E_FLAG_RX_CSUM_ENABLED               BIT_ULL(1)
 321 #define I40E_FLAG_MSI_ENABLED                   BIT_ULL(2)
 322 #define I40E_FLAG_MSIX_ENABLED                  BIT_ULL(3)
 323 #define I40E_FLAG_RSS_ENABLED                   BIT_ULL(6)
 324 #define I40E_FLAG_VMDQ_ENABLED                  BIT_ULL(7)
 325 #define I40E_FLAG_FDIR_REQUIRES_REINIT          BIT_ULL(8)
 326 #define I40E_FLAG_NEED_LINK_UPDATE              BIT_ULL(9)
 327 #define I40E_FLAG_IWARP_ENABLED                 BIT_ULL(10)
 328 #ifdef I40E_FCOE
 329 #define I40E_FLAG_FCOE_ENABLED                  BIT_ULL(11)
 330 #endif /* I40E_FCOE */
 331 #define I40E_FLAG_CLEAN_ADMINQ                  BIT_ULL(14)
 332 #define I40E_FLAG_FILTER_SYNC                   BIT_ULL(15)
 333 #define I40E_FLAG_SERVICE_CLIENT_REQUESTED      BIT_ULL(16)
 334 #define I40E_FLAG_PROCESS_MDD_EVENT             BIT_ULL(17)
 335 #define I40E_FLAG_PROCESS_VFLR_EVENT            BIT_ULL(18)
 336 #define I40E_FLAG_SRIOV_ENABLED                 BIT_ULL(19)
 337 #define I40E_FLAG_DCB_ENABLED                   BIT_ULL(20)
 338 #define I40E_FLAG_FD_SB_ENABLED                 BIT_ULL(21)
 339 #define I40E_FLAG_FD_ATR_ENABLED                BIT_ULL(22)
 340 #define I40E_FLAG_PTP                           BIT_ULL(25)
 341 #define I40E_FLAG_MFP_ENABLED                   BIT_ULL(26)
 342 #define I40E_FLAG_UDP_FILTER_SYNC               BIT_ULL(27)
 343 #define I40E_FLAG_PORT_ID_VALID                 BIT_ULL(28)
 344 #define I40E_FLAG_DCB_CAPABLE                   BIT_ULL(29)
 345 #define I40E_FLAG_RSS_AQ_CAPABLE                BIT_ULL(31)
 346 #define I40E_FLAG_HW_ATR_EVICT_CAPABLE          BIT_ULL(32)
 347 #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE        BIT_ULL(33)
 348 #define I40E_FLAG_128_QP_RSS_CAPABLE            BIT_ULL(34)
 349 #define I40E_FLAG_WB_ON_ITR_CAPABLE             BIT_ULL(35)
 350 #define I40E_FLAG_VEB_STATS_ENABLED             BIT_ULL(37)
 351 #define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE   BIT_ULL(38)
 352 #define I40E_FLAG_LINK_POLLING_ENABLED          BIT_ULL(39)
 353 #define I40E_FLAG_VEB_MODE_ENABLED              BIT_ULL(40)
 354 #define I40E_FLAG_GENEVE_OFFLOAD_CAPABLE        BIT_ULL(41)
 355 #define I40E_FLAG_NO_PCI_LINK_CHECK             BIT_ULL(42)
 356 #define I40E_FLAG_100M_SGMII_CAPABLE            BIT_ULL(43)
 357 #define I40E_FLAG_RESTART_AUTONEG               BIT_ULL(44)
 358 #define I40E_FLAG_NO_DCB_SUPPORT                BIT_ULL(45)
 359 #define I40E_FLAG_USE_SET_LLDP_MIB              BIT_ULL(46)
 360 #define I40E_FLAG_STOP_FW_LLDP                  BIT_ULL(47)
 361 #define I40E_FLAG_HAVE_10GBASET_PHY             BIT_ULL(48)
 362 #define I40E_FLAG_PF_MAC                        BIT_ULL(50)
 363 #define I40E_FLAG_TRUE_PROMISC_SUPPORT          BIT_ULL(51)
 364
 365         /* tracks features that get auto disabled by errors */
 366         u64 auto_disable_flags;
 367
 368 #ifdef I40E_FCOE
 369         struct i40e_fcoe fcoe;
 370
 371 #endif /* I40E_FCOE */
 372         bool stat_offsets_loaded;
 373         struct i40e_hw_port_stats stats;
 374         struct i40e_hw_port_stats stats_offsets;
 375         u32 tx_timeout_count;
 376         u32 tx_timeout_recovery_level;
 377         unsigned long tx_timeout_last_recovery;
 378         u32 tx_sluggish_count;
 379         u32 hw_csum_rx_error;
 380         u32 led_status;
 381         u16 corer_count; /* Core reset count */
 382         u16 globr_count; /* Global reset count */
 383         u16 empr_count; /* EMP reset count */
 384         u16 pfr_count; /* PF reset count */
 385         u16 sw_int_count; /* SW interrupt count */
 386
 387         struct mutex switch_mutex;
 388         u16 lan_vsi;       /* our default LAN VSI */
 389         u16 lan_veb;       /* initial relay, if exists */
 390 #define I40E_NO_VEB   0xffff
 391 #define I40E_NO_VSI   0xffff
 392         u16 next_vsi;      /* Next unallocated VSI - 0-based! */
 393         struct i40e_vsi **vsi;
 394         struct i40e_veb *veb[I40E_MAX_VEB];
 395
 396         struct i40e_lump_tracking *qp_pile;
 397         struct i40e_lump_tracking *irq_pile;
 398
 399         /* switch config info */
 400         u16 pf_seid;
 401         u16 main_vsi_seid;
 402         u16 mac_seid;
 403         struct kobject *switch_kobj;
 404 #ifdef CONFIG_DEBUG_FS
 405         struct dentry *i40e_dbg_pf;
 406 #endif /* CONFIG_DEBUG_FS */
 407         bool cur_promisc;
 408
 409         u16 instance; /* A unique number per i40e_pf instance in the system */
 410
 411         /* sr-iov config info */
 412         struct i40e_vf *vf;
 413         int num_alloc_vfs;      /* actual number of VFs allocated */
 414         u32 vf_aq_requests;
 415         u32 arq_overflows;      /* Not fatal, possibly indicative of problems */
 416
 417         /* DCBx/DCBNL capability for PF that indicates
 418          * whether DCBx is managed by firmware or host
 419          * based agent (LLDPAD). Also, indicates what
 420          * flavor of DCBx protocol (IEEE/CEE) is supported
 421          * by the device. For now we're supporting IEEE
 422          * mode only.
 423          */
 424         u16 dcbx_cap;
 425
 426         u32     fcoe_hmc_filt_num;
 427         u32     fcoe_hmc_cntx_num;
 428         struct i40e_filter_control_settings filter_settings;
 429
 430         struct ptp_clock *ptp_clock;
 431         struct ptp_clock_info ptp_caps;
 432         struct sk_buff *ptp_tx_skb;
 433         struct hwtstamp_config tstamp_config;
 434         unsigned long last_rx_ptp_check;
 435         spinlock_t tmreg_lock; /* Used to protect the device time registers. */
 436         u64 ptp_base_adj;
 437         u32 tx_hwtstamp_timeouts;
 438         u32 rx_hwtstamp_cleared;
 439         bool ptp_tx;
 440         bool ptp_rx;
 441         u16 rss_table_size; /* HW RSS table size */
 442         /* These are only valid in NPAR modes */
 443         u32 npar_max_bw;
 444         u32 npar_min_bw;
 445
 446         u32 ioremap_len;
 447         u32 fd_inv;
 448         u16 phy_led_val;
 449 };
 450
 451 enum i40e_filter_state {
 452         I40E_FILTER_INVALID = 0,        /* Invalid state */
 453         I40E_FILTER_NEW,                /* New, not sent to FW yet */
 454         I40E_FILTER_ACTIVE,             /* Added to switch by FW */
 455         I40E_FILTER_FAILED,             /* Rejected by FW */
 456         I40E_FILTER_REMOVE,             /* To be removed */
 457 /* There is no 'removed' state; the filter struct is freed */
 458 };
 459 struct i40e_mac_filter {
 460         struct list_head list;
 461         u8 macaddr[ETH_ALEN];
 462 #define I40E_VLAN_ANY -1
 463         s16 vlan;
 464         u8 counter;             /* number of instances of this filter */
 465         bool is_vf;             /* filter belongs to a VF */
 466         bool is_netdev;         /* filter belongs to a netdev */
 467         enum i40e_filter_state state;
 468 };
 469
 470 struct i40e_veb {
 471         struct i40e_pf *pf;
 472         u16 idx;
 473         u16 veb_idx;           /* index of VEB parent */
 474         u16 seid;
 475         u16 uplink_seid;
 476         u16 stats_idx;           /* index of VEB parent */
 477         u8  enabled_tc;
 478         u16 bridge_mode;        /* Bridge Mode (VEB/VEPA) */
 479         u16 flags;
 480         u16 bw_limit;
 481         u8  bw_max_quanta;
 482         bool is_abs_credits;
 483         u8  bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS];
 484         u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 485         u8  bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 486         struct kobject *kobj;
 487         bool stat_offsets_loaded;
 488         struct i40e_eth_stats stats;
 489         struct i40e_eth_stats stats_offsets;
 490         struct i40e_veb_tc_stats tc_stats;
 491         struct i40e_veb_tc_stats tc_stats_offsets;
 492 };
 493
 494 /* struct that defines a VSI, associated with a dev */
 495 struct i40e_vsi {
 496         struct net_device *netdev;
 497         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 498         bool netdev_registered;
 499         bool stat_offsets_loaded;
 500
 501         u32 current_netdev_flags;
 502         unsigned long state;
 503 #define I40E_VSI_FLAG_FILTER_CHANGED    BIT(0)
 504 #define I40E_VSI_FLAG_VEB_OWNER         BIT(1)
 505         unsigned long flags;
 506
 507         /* Per VSI lock to protect elements/list (MAC filter) */
 508         spinlock_t mac_filter_list_lock;
 509         struct list_head mac_filter_list;
 510
 511         /* VSI stats */
 512         struct rtnl_link_stats64 net_stats;
 513         struct rtnl_link_stats64 net_stats_offsets;
 514         struct i40e_eth_stats eth_stats;
 515         struct i40e_eth_stats eth_stats_offsets;
 516 #ifdef I40E_FCOE
 517         struct i40e_fcoe_stats fcoe_stats;
 518         struct i40e_fcoe_stats fcoe_stats_offsets;
 519         bool fcoe_stat_offsets_loaded;
 520 #endif
 521         u32 tx_restart;
 522         u32 tx_busy;
 523         u64 tx_linearize;
 524         u64 tx_force_wb;
 525         u64 tx_lost_interrupt;
 526         u32 rx_buf_failed;
 527         u32 rx_page_failed;
 528
 529         /* These are containers of ring pointers, allocated at run-time */
 530         struct i40e_ring **rx_rings;
 531         struct i40e_ring **tx_rings;
 532
 533         u32  active_filters;
 534         u32  promisc_threshold;
 535
 536         u16 work_limit;
 537         u16 int_rate_limit;  /* value in usecs */
 538
 539         u16 rss_table_size; /* HW RSS table size */
 540         u16 rss_size;       /* Allocated RSS queues */
 541         u8  *rss_hkey_user; /* User configured hash keys */
 542         u8  *rss_lut_user;  /* User configured lookup table entries */
 543
 544         u16 max_frame;
 545         u16 rx_buf_len;
 546
 547         /* List of q_vectors allocated to this VSI */
 548         struct i40e_q_vector **q_vectors;
 549         int num_q_vectors;
 550         int base_vector;
 551         bool irqs_ready;
 552
 553         u16 seid;            /* HW index of this VSI (absolute index) */
 554         u16 id;              /* VSI number */
 555         u16 uplink_seid;
 556
 557         u16 base_queue;      /* vsi's first queue in hw array */
 558         u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */
 559         u16 req_queue_pairs; /* User requested queue pairs */
 560         u16 num_queue_pairs; /* Used tx and rx pairs */
 561         u16 num_desc;
 562         enum i40e_vsi_type type;  /* VSI type, e.g., LAN, FCoE, etc */
 563         s16 vf_id;              /* Virtual function ID for SRIOV VSIs */
 564
 565         struct i40e_tc_configuration tc_config;
 566         struct i40e_aqc_vsi_properties_data info;
 567
 568         /* VSI BW limit (absolute across all TCs) */
 569         u16 bw_limit;           /* VSI BW Limit (0 = disabled) */
 570         u8  bw_max_quanta;      /* Max Quanta when BW limit is enabled */
 571
 572         /* Relative TC credits across VSIs */
 573         u8  bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS];
 574         /* TC BW limit credits within VSI */
 575         u16  bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 576         /* TC BW limit max quanta within VSI */
 577         u8  bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 578
 579         struct i40e_pf *back;  /* Backreference to associated PF */
 580         u16 idx;               /* index in pf->vsi[] */
 581         u16 veb_idx;           /* index of VEB parent */
 582         struct kobject *kobj;  /* sysfs object */
 583         bool current_isup;     /* Sync 'link up' logging */
 584
 585         void *priv;     /* client driver data reference. */
 586
 587         /* VSI specific handlers */
 588         irqreturn_t (*irq_handler)(int irq, void *data);
 589
 590         /* current rxnfc data */
 591         struct ethtool_rxnfc rxnfc; /* current rss hash opts */
 592 } ____cacheline_internodealigned_in_smp;
 593
 594 struct i40e_netdev_priv {
 595         struct i40e_vsi *vsi;
 596 };
 597
 598 /* struct that defines an interrupt vector */
 599 struct i40e_q_vector {
 600         struct i40e_vsi *vsi;
 601
 602         u16 v_idx;              /* index in the vsi->q_vector array. */
 603         u16 reg_idx;            /* register index of the interrupt */
 604
 605         struct napi_struct napi;
 606
 607         struct i40e_ring_container rx;
 608         struct i40e_ring_container tx;
 609
 610         u8 num_ringpairs;       /* total number of ring pairs in vector */
 611
 612 #define I40E_Q_VECTOR_HUNG_DETECT 0 /* Bit Index for hung detection logic */
 613         unsigned long hung_detected; /* Set/Reset for hung_detection logic */
 614
 615         cpumask_t affinity_mask;
 616         struct rcu_head rcu;    /* to avoid race with update stats on free */
 617         char name[I40E_INT_NAME_STR_LEN];
 618         bool arm_wb_state;
 619 #define ITR_COUNTDOWN_START 100
 620         u8 itr_countdown;       /* when 0 should adjust ITR */
 621 } ____cacheline_internodealigned_in_smp;
 622
 623 /* lan device */
 624 struct i40e_device {
 625         struct list_head list;
 626         struct i40e_pf *pf;
 627 };
 628
 629 /**
 630  * i40e_nvm_version_str - format the NVM version strings
 631  * @hw: ptr to the hardware info
 632  **/
 633 static inline char *i40e_nvm_version_str(struct i40e_hw *hw)
 634 {
 635         static char buf[32];
 636         u32 full_ver;
 637         u8 ver, patch;
 638         u16 build;
 639
 640         full_ver = hw->nvm.oem_ver;
 641         ver = (u8)(full_ver >> I40E_OEM_VER_SHIFT);
 642         build = (u16)((full_ver >> I40E_OEM_VER_BUILD_SHIFT) &
 643                  I40E_OEM_VER_BUILD_MASK);
 644         patch = (u8)(full_ver & I40E_OEM_VER_PATCH_MASK);
 645
 646         snprintf(buf, sizeof(buf),
 647                  "%x.%02x 0x%x %d.%d.%d",
 648                  (hw->nvm.version & I40E_NVM_VERSION_HI_MASK) >>
 649                         I40E_NVM_VERSION_HI_SHIFT,
 650                  (hw->nvm.version & I40E_NVM_VERSION_LO_MASK) >>
 651                         I40E_NVM_VERSION_LO_SHIFT,
 652                  hw->nvm.eetrack, ver, build, patch);
 653
 654         return buf;
 655 }
 656
 657 /**
 658  * i40e_netdev_to_pf: Retrieve the PF struct for given netdev
 659  * @netdev: the corresponding netdev
 660  *
 661  * Return the PF struct for the given netdev
 662  **/
 663 static inline struct i40e_pf *i40e_netdev_to_pf(struct net_device *netdev)
 664 {
 665         struct i40e_netdev_priv *np = netdev_priv(netdev);
 666         struct i40e_vsi *vsi = np->vsi;
 667
 668         return vsi->back;
 669 }
 670
 671 static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
 672                                 irqreturn_t (*irq_handler)(int, void *))
 673 {
 674         vsi->irq_handler = irq_handler;
 675 }
 676
 677 /**
 678  * i40e_rx_is_programming_status - check for programming status descriptor
 679  * @qw: the first quad word of the program status descriptor
 680  *
 681  * The value of in the descriptor length field indicate if this
 682  * is a programming status descriptor for flow director or FCoE
 683  * by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise
 684  * it is a packet descriptor.
 685  **/
 686 static inline bool i40e_rx_is_programming_status(u64 qw)
 687 {
 688         return I40E_RX_PROG_STATUS_DESC_LENGTH ==
 689                 (qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT);
 690 }
 691
 692 /**
 693  * i40e_get_fd_cnt_all - get the total FD filter space available
 694  * @pf: pointer to the PF struct
 695  **/
 696 static inline int i40e_get_fd_cnt_all(struct i40e_pf *pf)
 697 {
 698         return pf->hw.fdir_shared_filter_count + pf->fdir_pf_filter_count;
 699 }
 700
 701 /* needed by i40e_ethtool.c */
 702 int i40e_up(struct i40e_vsi *vsi);
 703 void i40e_down(struct i40e_vsi *vsi);
 704 extern const char i40e_driver_name[];
 705 extern const char i40e_driver_version_str[];
 706 void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags);
 707 void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags);
 708 int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 709 int i40e_get_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size);
 710 struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id);
 711 void i40e_update_stats(struct i40e_vsi *vsi);
 712 void i40e_update_eth_stats(struct i40e_vsi *vsi);
 713 struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi);
 714 int i40e_fetch_switch_configuration(struct i40e_pf *pf,
 715                                     bool printconfig);
 716
 717 int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
 718                              struct i40e_pf *pf, bool add);
 719 int i40e_add_del_fdir(struct i40e_vsi *vsi,
 720                       struct i40e_fdir_filter *input, bool add);
 721 void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
 722 u32 i40e_get_current_fd_count(struct i40e_pf *pf);
 723 u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
 724 u32 i40e_get_current_atr_cnt(struct i40e_pf *pf);
 725 u32 i40e_get_global_fd_count(struct i40e_pf *pf);
 726 bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features);
 727 void i40e_set_ethtool_ops(struct net_device *netdev);
 728 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 729                                         u8 *macaddr, s16 vlan,
 730                                         bool is_vf, bool is_netdev);
 731 void i40e_del_filter(struct i40e_vsi *vsi, u8 *macaddr, s16 vlan,
 732                      bool is_vf, bool is_netdev);
 733 int i40e_sync_vsi_filters(struct i40e_vsi *vsi);
 734 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 735                                 u16 uplink, u32 param1);
 736 int i40e_vsi_release(struct i40e_vsi *vsi);
 737 struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf, enum i40e_vsi_type type,
 738                                  struct i40e_vsi *start_vsi);
 739 #ifdef I40E_FCOE
 740 void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 741                               struct i40e_vsi_context *ctxt,
 742                               u8 enabled_tc, bool is_add);
 743 #endif
 744 void i40e_service_event_schedule(struct i40e_pf *pf);
 745 void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
 746                                   u8 *msg, u16 len);
 747
 748 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 749 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 750 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
 751                                 u16 downlink_seid, u8 enabled_tc);
 752 void i40e_veb_release(struct i40e_veb *veb);
 753
 754 int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc);
 755 int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid);
 756 void i40e_vsi_remove_pvid(struct i40e_vsi *vsi);
 757 void i40e_vsi_reset_stats(struct i40e_vsi *vsi);
 758 void i40e_pf_reset_stats(struct i40e_pf *pf);
 759 #ifdef CONFIG_DEBUG_FS
 760 void i40e_dbg_pf_init(struct i40e_pf *pf);
 761 void i40e_dbg_pf_exit(struct i40e_pf *pf);
 762 void i40e_dbg_init(void);
 763 void i40e_dbg_exit(void);
 764 #else
 765 static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {}
 766 static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
 767 static inline void i40e_dbg_init(void) {}
 768 static inline void i40e_dbg_exit(void) {}
 769 #endif /* CONFIG_DEBUG_FS*/
 770 /* needed by client drivers */
 771 int i40e_lan_add_device(struct i40e_pf *pf);
 772 int i40e_lan_del_device(struct i40e_pf *pf);
 773 void i40e_client_subtask(struct i40e_pf *pf);
 774 void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi);
 775 void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi);
 776 void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset);
 777 void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs);
 778 void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id);
 779 int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id,
 780                            enum i40e_client_type type);
 781 /**
 782  * i40e_irq_dynamic_enable - Enable default interrupt generation settings
 783  * @vsi: pointer to a vsi
 784  * @vector: enable a particular Hw Interrupt vector, without base_vector
 785  **/
 786 static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
 787 {
 788         struct i40e_pf *pf = vsi->back;
 789         struct i40e_hw *hw = &pf->hw;
 790         u32 val;
 791
 792         /* definitely clear the PBA here, as this function is meant to
 793          * clean out all previous interrupts AND enable the interrupt
 794          */
 795         val = I40E_PFINT_DYN_CTLN_INTENA_MASK |
 796               I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
 797               (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
 798         wr32(hw, I40E_PFINT_DYN_CTLN(vector + vsi->base_vector - 1), val);
 799         /* skip the flush */
 800 }
 801
 802 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
 803 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf, bool clearpba);
 804 #ifdef I40E_FCOE
 805 struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
 806                                              struct net_device *netdev,
 807                                              struct rtnl_link_stats64 *storage);
 808 int i40e_set_mac(struct net_device *netdev, void *p);
 809 void i40e_set_rx_mode(struct net_device *netdev);
 810 #endif
 811 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
 812 #ifdef I40E_FCOE
 813 void i40e_tx_timeout(struct net_device *netdev);
 814 int i40e_vlan_rx_add_vid(struct net_device *netdev,
 815                          __always_unused __be16 proto, u16 vid);
 816 int i40e_vlan_rx_kill_vid(struct net_device *netdev,
 817                           __always_unused __be16 proto, u16 vid);
 818 #endif
 819 int i40e_open(struct net_device *netdev);
 820 int i40e_close(struct net_device *netdev);
 821 int i40e_vsi_open(struct i40e_vsi *vsi);
 822 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
 823 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
 824 int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
 825 struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 826                                              bool is_vf, bool is_netdev);
 827 int i40e_del_mac_all_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 828                           bool is_vf, bool is_netdev);
 829 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
 830 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
 831                                       bool is_vf, bool is_netdev);
 832 #ifdef I40E_FCOE
 833 int __i40e_setup_tc(struct net_device *netdev, u32 handle, __be16 proto,
 834                     struct tc_to_netdev *tc);
 835 void i40e_netpoll(struct net_device *netdev);
 836 int i40e_fcoe_enable(struct net_device *netdev);
 837 int i40e_fcoe_disable(struct net_device *netdev);
 838 int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt);
 839 u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf);
 840 void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi);
 841 void i40e_fcoe_vsi_setup(struct i40e_pf *pf);
 842 void i40e_init_pf_fcoe(struct i40e_pf *pf);
 843 int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi);
 844 void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi);
 845 int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring,
 846                              union i40e_rx_desc *rx_desc,
 847                              struct sk_buff *skb);
 848 void i40e_fcoe_handle_status(struct i40e_ring *rx_ring,
 849                              union i40e_rx_desc *rx_desc, u8 prog_id);
 850 #endif /* I40E_FCOE */
 851 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 852 #ifdef CONFIG_I40E_DCB
 853 void i40e_dcbnl_flush_apps(struct i40e_pf *pf,
 854                            struct i40e_dcbx_config *old_cfg,
 855                            struct i40e_dcbx_config *new_cfg);
 856 void i40e_dcbnl_set_all(struct i40e_vsi *vsi);
 857 void i40e_dcbnl_setup(struct i40e_vsi *vsi);
 858 bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
 859                             struct i40e_dcbx_config *old_cfg,
 860                             struct i40e_dcbx_config *new_cfg);
 861 #endif /* CONFIG_I40E_DCB */
 862 void i40e_ptp_rx_hang(struct i40e_vsi *vsi);
 863 void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf);
 864 void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index);
 865 void i40e_ptp_set_increment(struct i40e_pf *pf);
 866 int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 867 int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 868 void i40e_ptp_init(struct i40e_pf *pf);
 869 void i40e_ptp_stop(struct i40e_pf *pf);
 870 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
 871 i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf);
 872 i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf);
 873 i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf);
 874 void i40e_print_link_message(struct i40e_vsi *vsi, bool isup);
 875 #endif /* _I40E_H_ */