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