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

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