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            32
  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
 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    0xff00
 112 #define I40E_OEM_VER_PATCH_MASK    0xff
 113
 114 /* The values in here are decimal coded as hex as is the case in the NVM map*/
 115 #define I40E_CURRENT_NVM_VERSION_HI 0x2
 116 #define I40E_CURRENT_NVM_VERSION_LO 0x40
 117
 118 /* magic for getting defines into strings */
 119 #define STRINGIFY(foo)  #foo
 120 #define XSTRINGIFY(bar) STRINGIFY(bar)
 121
 122 #define I40E_RX_DESC(R, i)                      \
 123         ((ring_is_16byte_desc_enabled(R))       \
 124                 ? (union i40e_32byte_rx_desc *) \
 125                         (&(((union i40e_16byte_rx_desc *)((R)->desc))[i])) \
 126                 : (&(((union i40e_32byte_rx_desc *)((R)->desc))[i])))
 127 #define I40E_TX_DESC(R, i)                      \
 128         (&(((struct i40e_tx_desc *)((R)->desc))[i]))
 129 #define I40E_TX_CTXTDESC(R, i)                  \
 130         (&(((struct i40e_tx_context_desc *)((R)->desc))[i]))
 131 #define I40E_TX_FDIRDESC(R, i)                  \
 132         (&(((struct i40e_filter_program_desc *)((R)->desc))[i]))
 133
 134 /* default to trying for four seconds */
 135 #define I40E_TRY_LINK_TIMEOUT (4 * HZ)
 136
 137 /* driver state flags */
 138 enum i40e_state_t {
 139         __I40E_TESTING,
 140         __I40E_CONFIG_BUSY,
 141         __I40E_CONFIG_DONE,
 142         __I40E_DOWN,
 143         __I40E_NEEDS_RESTART,
 144         __I40E_SERVICE_SCHED,
 145         __I40E_ADMINQ_EVENT_PENDING,
 146         __I40E_MDD_EVENT_PENDING,
 147         __I40E_VFLR_EVENT_PENDING,
 148         __I40E_RESET_RECOVERY_PENDING,
 149         __I40E_RESET_INTR_RECEIVED,
 150         __I40E_REINIT_REQUESTED,
 151         __I40E_PF_RESET_REQUESTED,
 152         __I40E_CORE_RESET_REQUESTED,
 153         __I40E_GLOBAL_RESET_REQUESTED,
 154         __I40E_EMP_RESET_REQUESTED,
 155         __I40E_EMP_RESET_INTR_RECEIVED,
 156         __I40E_FILTER_OVERFLOW_PROMISC,
 157         __I40E_SUSPENDED,
 158         __I40E_PTP_TX_IN_PROGRESS,
 159         __I40E_BAD_EEPROM,
 160         __I40E_DOWN_REQUESTED,
 161         __I40E_FD_FLUSH_REQUESTED,
 162         __I40E_RESET_FAILED,
 163         __I40E_PORT_TX_SUSPENDED,
 164         __I40E_VF_DISABLE,
 165 };
 166
 167 enum i40e_interrupt_policy {
 168         I40E_INTERRUPT_BEST_CASE,
 169         I40E_INTERRUPT_MEDIUM,
 170         I40E_INTERRUPT_LOWEST
 171 };
 172
 173 struct i40e_lump_tracking {
 174         u16 num_entries;
 175         u16 search_hint;
 176         u16 list[0];
 177 #define I40E_PILE_VALID_BIT  0x8000
 178 };
 179
 180 #define I40E_DEFAULT_ATR_SAMPLE_RATE    20
 181 #define I40E_FDIR_MAX_RAW_PACKET_SIZE   512
 182 #define I40E_FDIR_BUFFER_FULL_MARGIN    10
 183 #define I40E_FDIR_BUFFER_HEAD_ROOM      32
 184 #define I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR (I40E_FDIR_BUFFER_HEAD_ROOM * 4)
 185
 186 #define I40E_HKEY_ARRAY_SIZE ((I40E_PFQF_HKEY_MAX_INDEX + 1) * 4)
 187
 188 enum i40e_fd_stat_idx {
 189         I40E_FD_STAT_ATR,
 190         I40E_FD_STAT_SB,
 191         I40E_FD_STAT_ATR_TUNNEL,
 192         I40E_FD_STAT_PF_COUNT
 193 };
 194 #define I40E_FD_STAT_PF_IDX(pf_id) ((pf_id) * I40E_FD_STAT_PF_COUNT)
 195 #define I40E_FD_ATR_STAT_IDX(pf_id) \
 196                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR)
 197 #define I40E_FD_SB_STAT_IDX(pf_id)  \
 198                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_SB)
 199 #define I40E_FD_ATR_TUNNEL_STAT_IDX(pf_id) \
 200                         (I40E_FD_STAT_PF_IDX(pf_id) + I40E_FD_STAT_ATR_TUNNEL)
 201
 202 struct i40e_fdir_filter {
 203         struct hlist_node fdir_node;
 204         /* filter ipnut set */
 205         u8 flow_type;
 206         u8 ip4_proto;
 207         /* TX packet view of src and dst */
 208         __be32 dst_ip[4];
 209         __be32 src_ip[4];
 210         __be16 src_port;
 211         __be16 dst_port;
 212         __be32 sctp_v_tag;
 213         /* filter control */
 214         u16 q_index;
 215         u8  flex_off;
 216         u8  pctype;
 217         u16 dest_vsi;
 218         u8  dest_ctl;
 219         u8  fd_status;
 220         u16 cnt_index;
 221         u32 fd_id;
 222 };
 223
 224 #define I40E_ETH_P_LLDP                 0x88cc
 225
 226 #define I40E_DCB_PRIO_TYPE_STRICT       0
 227 #define I40E_DCB_PRIO_TYPE_ETS          1
 228 #define I40E_DCB_STRICT_PRIO_CREDITS    127
 229 #define I40E_MAX_USER_PRIORITY  8
 230 /* DCB per TC information data structure */
 231 struct i40e_tc_info {
 232         u16     qoffset;        /* Queue offset from base queue */
 233         u16     qcount;         /* Total Queues */
 234         u8      netdev_tc;      /* Netdev TC index if netdev associated */
 235 };
 236
 237 /* TC configuration data structure */
 238 struct i40e_tc_configuration {
 239         u8      numtc;          /* Total number of enabled TCs */
 240         u8      enabled_tc;     /* TC map */
 241         struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS];
 242 };
 243
 244 /* struct that defines the Ethernet device */
 245 struct i40e_pf {
 246         struct pci_dev *pdev;
 247         struct i40e_hw hw;
 248         unsigned long state;
 249         struct msix_entry *msix_entries;
 250         bool fc_autoneg_status;
 251
 252         u16 eeprom_version;
 253         u16 num_vmdq_vsis;         /* num vmdq vsis this PF has set up */
 254         u16 num_vmdq_qps;          /* num queue pairs per vmdq pool */
 255         u16 num_vmdq_msix;         /* num queue vectors per vmdq pool */
 256         u16 num_req_vfs;           /* num VFs requested for this VF */
 257         u16 num_vf_qps;            /* num queue pairs per VF */
 258 #ifdef I40E_FCOE
 259         u16 num_fcoe_qps;          /* num fcoe queues this PF has set up */
 260         u16 num_fcoe_msix;         /* num queue vectors per fcoe pool */
 261 #endif /* I40E_FCOE */
 262         u16 num_lan_qps;           /* num lan queues this PF has set up */
 263         u16 num_lan_msix;          /* num queue vectors for the base PF vsi */
 264         int queues_left;           /* queues left unclaimed */
 265         u16 rss_size;              /* num queues in the RSS array */
 266         u16 rss_size_max;          /* HW defined max RSS queues */
 267         u16 fdir_pf_filter_count;  /* num of guaranteed filters for this PF */
 268         u16 num_alloc_vsi;         /* num VSIs this driver supports */
 269         u8 atr_sample_rate;
 270         bool wol_en;
 271
 272         struct hlist_head fdir_filter_list;
 273         u16 fdir_pf_active_filters;
 274         unsigned long fd_flush_timestamp;
 275         u32 fd_flush_cnt;
 276         u32 fd_add_err;
 277         u32 fd_atr_cnt;
 278         u32 fd_tcp_rule;
 279
 280 #ifdef CONFIG_I40E_VXLAN
 281         __be16  vxlan_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
 282         u16 pending_vxlan_bitmap;
 283
 284 #endif
 285         enum i40e_interrupt_policy int_policy;
 286         u16 rx_itr_default;
 287         u16 tx_itr_default;
 288         u32 msg_enable;
 289         char int_name[I40E_INT_NAME_STR_LEN];
 290         u16 adminq_work_limit; /* num of admin receive queue desc to process */
 291         unsigned long service_timer_period;
 292         unsigned long service_timer_previous;
 293         struct timer_list service_timer;
 294         struct work_struct service_task;
 295
 296         u64 flags;
 297 #define I40E_FLAG_RX_CSUM_ENABLED               BIT_ULL(1)
 298 #define I40E_FLAG_MSI_ENABLED                   BIT_ULL(2)
 299 #define I40E_FLAG_MSIX_ENABLED                  BIT_ULL(3)
 300 #define I40E_FLAG_RX_1BUF_ENABLED               BIT_ULL(4)
 301 #define I40E_FLAG_RX_PS_ENABLED                 BIT_ULL(5)
 302 #define I40E_FLAG_RSS_ENABLED                   BIT_ULL(6)
 303 #define I40E_FLAG_VMDQ_ENABLED                  BIT_ULL(7)
 304 #define I40E_FLAG_FDIR_REQUIRES_REINIT          BIT_ULL(8)
 305 #define I40E_FLAG_NEED_LINK_UPDATE              BIT_ULL(9)
 306 #define I40E_FLAG_IWARP_ENABLED                 BIT_ULL(10)
 307 #ifdef I40E_FCOE
 308 #define I40E_FLAG_FCOE_ENABLED                  BIT_ULL(11)
 309 #endif /* I40E_FCOE */
 310 #define I40E_FLAG_IN_NETPOLL                    BIT_ULL(12)
 311 #define I40E_FLAG_16BYTE_RX_DESC_ENABLED        BIT_ULL(13)
 312 #define I40E_FLAG_CLEAN_ADMINQ                  BIT_ULL(14)
 313 #define I40E_FLAG_FILTER_SYNC                   BIT_ULL(15)
 314 #define I40E_FLAG_PROCESS_MDD_EVENT             BIT_ULL(17)
 315 #define I40E_FLAG_PROCESS_VFLR_EVENT            BIT_ULL(18)
 316 #define I40E_FLAG_SRIOV_ENABLED                 BIT_ULL(19)
 317 #define I40E_FLAG_DCB_ENABLED                   BIT_ULL(20)
 318 #define I40E_FLAG_FD_SB_ENABLED                 BIT_ULL(21)
 319 #define I40E_FLAG_FD_ATR_ENABLED                BIT_ULL(22)
 320 #define I40E_FLAG_PTP                           BIT_ULL(25)
 321 #define I40E_FLAG_MFP_ENABLED                   BIT_ULL(26)
 322 #ifdef CONFIG_I40E_VXLAN
 323 #define I40E_FLAG_VXLAN_FILTER_SYNC             BIT_ULL(27)
 324 #endif
 325 #define I40E_FLAG_PORT_ID_VALID                 BIT_ULL(28)
 326 #define I40E_FLAG_DCB_CAPABLE                   BIT_ULL(29)
 327 #define I40E_FLAG_RSS_AQ_CAPABLE                BIT_ULL(31)
 328 #define I40E_FLAG_HW_ATR_EVICT_CAPABLE          BIT_ULL(32)
 329 #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE        BIT_ULL(33)
 330 #define I40E_FLAG_128_QP_RSS_CAPABLE            BIT_ULL(34)
 331 #define I40E_FLAG_WB_ON_ITR_CAPABLE             BIT_ULL(35)
 332 #define I40E_FLAG_VEB_STATS_ENABLED             BIT_ULL(37)
 333 #define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE   BIT_ULL(38)
 334 #define I40E_FLAG_LINK_POLLING_ENABLED          BIT_ULL(39)
 335 #define I40E_FLAG_VEB_MODE_ENABLED              BIT_ULL(40)
 336 #define I40E_FLAG_NO_PCI_LINK_CHECK             BIT_ULL(42)
 337
 338         /* tracks features that get auto disabled by errors */
 339         u64 auto_disable_flags;
 340
 341 #ifdef I40E_FCOE
 342         struct i40e_fcoe fcoe;
 343
 344 #endif /* I40E_FCOE */
 345         bool stat_offsets_loaded;
 346         struct i40e_hw_port_stats stats;
 347         struct i40e_hw_port_stats stats_offsets;
 348         u32 tx_timeout_count;
 349         u32 tx_timeout_recovery_level;
 350         unsigned long tx_timeout_last_recovery;
 351         u32 tx_sluggish_count;
 352         u32 hw_csum_rx_error;
 353         u32 led_status;
 354         u16 corer_count; /* Core reset count */
 355         u16 globr_count; /* Global reset count */
 356         u16 empr_count; /* EMP reset count */
 357         u16 pfr_count; /* PF reset count */
 358         u16 sw_int_count; /* SW interrupt count */
 359
 360         struct mutex switch_mutex;
 361         u16 lan_vsi;       /* our default LAN VSI */
 362         u16 lan_veb;       /* initial relay, if exists */
 363 #define I40E_NO_VEB   0xffff
 364 #define I40E_NO_VSI   0xffff
 365         u16 next_vsi;      /* Next unallocated VSI - 0-based! */
 366         struct i40e_vsi **vsi;
 367         struct i40e_veb *veb[I40E_MAX_VEB];
 368
 369         struct i40e_lump_tracking *qp_pile;
 370         struct i40e_lump_tracking *irq_pile;
 371
 372         /* switch config info */
 373         u16 pf_seid;
 374         u16 main_vsi_seid;
 375         u16 mac_seid;
 376         struct kobject *switch_kobj;
 377 #ifdef CONFIG_DEBUG_FS
 378         struct dentry *i40e_dbg_pf;
 379 #endif /* CONFIG_DEBUG_FS */
 380         bool cur_promisc;
 381
 382         u16 instance; /* A unique number per i40e_pf instance in the system */
 383
 384         /* sr-iov config info */
 385         struct i40e_vf *vf;
 386         int num_alloc_vfs;      /* actual number of VFs allocated */
 387         u32 vf_aq_requests;
 388
 389         /* DCBx/DCBNL capability for PF that indicates
 390          * whether DCBx is managed by firmware or host
 391          * based agent (LLDPAD). Also, indicates what
 392          * flavor of DCBx protocol (IEEE/CEE) is supported
 393          * by the device. For now we're supporting IEEE
 394          * mode only.
 395          */
 396         u16 dcbx_cap;
 397
 398         u32     fcoe_hmc_filt_num;
 399         u32     fcoe_hmc_cntx_num;
 400         struct i40e_filter_control_settings filter_settings;
 401
 402         struct ptp_clock *ptp_clock;
 403         struct ptp_clock_info ptp_caps;
 404         struct sk_buff *ptp_tx_skb;
 405         struct hwtstamp_config tstamp_config;
 406         unsigned long last_rx_ptp_check;
 407         spinlock_t tmreg_lock; /* Used to protect the device time registers. */
 408         u64 ptp_base_adj;
 409         u32 tx_hwtstamp_timeouts;
 410         u32 rx_hwtstamp_cleared;
 411         bool ptp_tx;
 412         bool ptp_rx;
 413         u16 rss_table_size;
 414         /* These are only valid in NPAR modes */
 415         u32 npar_max_bw;
 416         u32 npar_min_bw;
 417
 418         u32 ioremap_len;
 419         u32 fd_inv;
 420 };
 421
 422 struct i40e_mac_filter {
 423         struct list_head list;
 424         u8 macaddr[ETH_ALEN];
 425 #define I40E_VLAN_ANY -1
 426         s16 vlan;
 427         u8 counter;             /* number of instances of this filter */
 428         bool is_vf;             /* filter belongs to a VF */
 429         bool is_netdev;         /* filter belongs to a netdev */
 430         bool changed;           /* filter needs to be sync'd to the HW */
 431         bool is_laa;            /* filter is a Locally Administered Address */
 432 };
 433
 434 struct i40e_veb {
 435         struct i40e_pf *pf;
 436         u16 idx;
 437         u16 veb_idx;           /* index of VEB parent */
 438         u16 seid;
 439         u16 uplink_seid;
 440         u16 stats_idx;           /* index of VEB parent */
 441         u8  enabled_tc;
 442         u16 bridge_mode;        /* Bridge Mode (VEB/VEPA) */
 443         u16 flags;
 444         u16 bw_limit;
 445         u8  bw_max_quanta;
 446         bool is_abs_credits;
 447         u8  bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS];
 448         u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 449         u8  bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 450         struct kobject *kobj;
 451         bool stat_offsets_loaded;
 452         struct i40e_eth_stats stats;
 453         struct i40e_eth_stats stats_offsets;
 454         struct i40e_veb_tc_stats tc_stats;
 455         struct i40e_veb_tc_stats tc_stats_offsets;
 456 };
 457
 458 /* struct that defines a VSI, associated with a dev */
 459 struct i40e_vsi {
 460         struct net_device *netdev;
 461         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 462         bool netdev_registered;
 463         bool stat_offsets_loaded;
 464
 465         u32 current_netdev_flags;
 466         unsigned long state;
 467 #define I40E_VSI_FLAG_FILTER_CHANGED    BIT(0)
 468 #define I40E_VSI_FLAG_VEB_OWNER         BIT(1)
 469         unsigned long flags;
 470
 471         struct list_head mac_filter_list;
 472
 473         /* VSI stats */
 474         struct rtnl_link_stats64 net_stats;
 475         struct rtnl_link_stats64 net_stats_offsets;
 476         struct i40e_eth_stats eth_stats;
 477         struct i40e_eth_stats eth_stats_offsets;
 478 #ifdef I40E_FCOE
 479         struct i40e_fcoe_stats fcoe_stats;
 480         struct i40e_fcoe_stats fcoe_stats_offsets;
 481         bool fcoe_stat_offsets_loaded;
 482 #endif
 483         u32 tx_restart;
 484         u32 tx_busy;
 485         u64 tx_linearize;
 486         u32 rx_buf_failed;
 487         u32 rx_page_failed;
 488
 489         /* These are containers of ring pointers, allocated at run-time */
 490         struct i40e_ring **rx_rings;
 491         struct i40e_ring **tx_rings;
 492
 493         u16 work_limit;
 494         /* high bit set means dynamic, use accessor routines to read/write.
 495          * hardware only supports 2us resolution for the ITR registers.
 496          * these values always store the USER setting, and must be converted
 497          * before programming to a register.
 498          */
 499         u16 rx_itr_setting;
 500         u16 tx_itr_setting;
 501
 502         u16 rss_table_size;
 503         u16 rss_size;
 504
 505         u16 max_frame;
 506         u16 rx_hdr_len;
 507         u16 rx_buf_len;
 508         u8  dtype;
 509
 510         /* List of q_vectors allocated to this VSI */
 511         struct i40e_q_vector **q_vectors;
 512         int num_q_vectors;
 513         int base_vector;
 514         bool irqs_ready;
 515
 516         u16 seid;            /* HW index of this VSI (absolute index) */
 517         u16 id;              /* VSI number */
 518         u16 uplink_seid;
 519
 520         u16 base_queue;      /* vsi's first queue in hw array */
 521         u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */
 522         u16 req_queue_pairs; /* User requested queue pairs */
 523         u16 num_queue_pairs; /* Used tx and rx pairs */
 524         u16 num_desc;
 525         enum i40e_vsi_type type;  /* VSI type, e.g., LAN, FCoE, etc */
 526         u16 vf_id;              /* Virtual function ID for SRIOV VSIs */
 527
 528         struct i40e_tc_configuration tc_config;
 529         struct i40e_aqc_vsi_properties_data info;
 530
 531         /* VSI BW limit (absolute across all TCs) */
 532         u16 bw_limit;           /* VSI BW Limit (0 = disabled) */
 533         u8  bw_max_quanta;      /* Max Quanta when BW limit is enabled */
 534
 535         /* Relative TC credits across VSIs */
 536         u8  bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS];
 537         /* TC BW limit credits within VSI */
 538         u16  bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS];
 539         /* TC BW limit max quanta within VSI */
 540         u8  bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS];
 541
 542         struct i40e_pf *back;  /* Backreference to associated PF */
 543         u16 idx;               /* index in pf->vsi[] */
 544         u16 veb_idx;           /* index of VEB parent */
 545         struct kobject *kobj;  /* sysfs object */
 546         bool current_isup;     /* Sync 'link up' logging */
 547
 548         /* VSI specific handlers */
 549         irqreturn_t (*irq_handler)(int irq, void *data);
 550
 551         /* current rxnfc data */
 552         struct ethtool_rxnfc rxnfc; /* current rss hash opts */
 553 } ____cacheline_internodealigned_in_smp;
 554
 555 struct i40e_netdev_priv {
 556         struct i40e_vsi *vsi;
 557 };
 558
 559 /* struct that defines an interrupt vector */
 560 struct i40e_q_vector {
 561         struct i40e_vsi *vsi;
 562
 563         u16 v_idx;              /* index in the vsi->q_vector array. */
 564         u16 reg_idx;            /* register index of the interrupt */
 565
 566         struct napi_struct napi;
 567
 568         struct i40e_ring_container rx;
 569         struct i40e_ring_container tx;
 570
 571         u8 num_ringpairs;       /* total number of ring pairs in vector */
 572
 573         cpumask_t affinity_mask;
 574         struct rcu_head rcu;    /* to avoid race with update stats on free */
 575         char name[I40E_INT_NAME_STR_LEN];
 576         bool arm_wb_state;
 577 } ____cacheline_internodealigned_in_smp;
 578
 579 /* lan device */
 580 struct i40e_device {
 581         struct list_head list;
 582         struct i40e_pf *pf;
 583 };
 584
 585 /**
 586  * i40e_fw_version_str - format the FW and NVM version strings
 587  * @hw: ptr to the hardware info
 588  **/
 589 static inline char *i40e_fw_version_str(struct i40e_hw *hw)
 590 {
 591         static char buf[32];
 592
 593         snprintf(buf, sizeof(buf),
 594                  "%x.%02x 0x%x %d.%d.%d",
 595                  (hw->nvm.version & I40E_NVM_VERSION_HI_MASK) >>
 596                         I40E_NVM_VERSION_HI_SHIFT,
 597                  (hw->nvm.version & I40E_NVM_VERSION_LO_MASK) >>
 598                         I40E_NVM_VERSION_LO_SHIFT,
 599                  hw->nvm.eetrack, (hw->nvm.oem_ver >> 24),
 600                  (hw->nvm.oem_ver & I40E_OEM_VER_BUILD_MASK) >> 8,
 601                  hw->nvm.oem_ver & I40E_OEM_VER_PATCH_MASK);
 602
 603         return buf;
 604 }
 605
 606 /**
 607  * i40e_netdev_to_pf: Retrieve the PF struct for given netdev
 608  * @netdev: the corresponding netdev
 609  *
 610  * Return the PF struct for the given netdev
 611  **/
 612 static inline struct i40e_pf *i40e_netdev_to_pf(struct net_device *netdev)
 613 {
 614         struct i40e_netdev_priv *np = netdev_priv(netdev);
 615         struct i40e_vsi *vsi = np->vsi;
 616
 617         return vsi->back;
 618 }
 619
 620 static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi,
 621                                 irqreturn_t (*irq_handler)(int, void *))
 622 {
 623         vsi->irq_handler = irq_handler;
 624 }
 625
 626 /**
 627  * i40e_rx_is_programming_status - check for programming status descriptor
 628  * @qw: the first quad word of the program status descriptor
 629  *
 630  * The value of in the descriptor length field indicate if this
 631  * is a programming status descriptor for flow director or FCoE
 632  * by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise
 633  * it is a packet descriptor.
 634  **/
 635 static inline bool i40e_rx_is_programming_status(u64 qw)
 636 {
 637         return I40E_RX_PROG_STATUS_DESC_LENGTH ==
 638                 (qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT);
 639 }
 640
 641 /**
 642  * i40e_get_fd_cnt_all - get the total FD filter space available
 643  * @pf: pointer to the PF struct
 644  **/
 645 static inline int i40e_get_fd_cnt_all(struct i40e_pf *pf)
 646 {
 647         return pf->hw.fdir_shared_filter_count + pf->fdir_pf_filter_count;
 648 }
 649
 650 /* needed by i40e_ethtool.c */
 651 int i40e_up(struct i40e_vsi *vsi);
 652 void i40e_down(struct i40e_vsi *vsi);
 653 extern const char i40e_driver_name[];
 654 extern const char i40e_driver_version_str[];
 655 void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags);
 656 void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags);
 657 struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id);
 658 void i40e_update_stats(struct i40e_vsi *vsi);
 659 void i40e_update_eth_stats(struct i40e_vsi *vsi);
 660 struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi);
 661 int i40e_fetch_switch_configuration(struct i40e_pf *pf,
 662                                     bool printconfig);
 663
 664 int i40e_program_fdir_filter(struct i40e_fdir_filter *fdir_data, u8 *raw_packet,
 665                              struct i40e_pf *pf, bool add);
 666 int i40e_add_del_fdir(struct i40e_vsi *vsi,
 667                       struct i40e_fdir_filter *input, bool add);
 668 void i40e_fdir_check_and_reenable(struct i40e_pf *pf);
 669 u32 i40e_get_current_fd_count(struct i40e_pf *pf);
 670 u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf);
 671 u32 i40e_get_current_atr_cnt(struct i40e_pf *pf);
 672 u32 i40e_get_global_fd_count(struct i40e_pf *pf);
 673 bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features);
 674 void i40e_set_ethtool_ops(struct net_device *netdev);
 675 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi,
 676                                         u8 *macaddr, s16 vlan,
 677                                         bool is_vf, bool is_netdev);
 678 void i40e_del_filter(struct i40e_vsi *vsi, u8 *macaddr, s16 vlan,
 679                      bool is_vf, bool is_netdev);
 680 int i40e_sync_vsi_filters(struct i40e_vsi *vsi, bool grab_rtnl);
 681 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type,
 682                                 u16 uplink, u32 param1);
 683 int i40e_vsi_release(struct i40e_vsi *vsi);
 684 struct i40e_vsi *i40e_vsi_lookup(struct i40e_pf *pf, enum i40e_vsi_type type,
 685                                  struct i40e_vsi *start_vsi);
 686 #ifdef I40E_FCOE
 687 void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
 688                               struct i40e_vsi_context *ctxt,
 689                               u8 enabled_tc, bool is_add);
 690 #endif
 691 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 692 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 693 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
 694                                 u16 downlink_seid, u8 enabled_tc);
 695 void i40e_veb_release(struct i40e_veb *veb);
 696
 697 int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc);
 698 i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid);
 699 void i40e_vsi_remove_pvid(struct i40e_vsi *vsi);
 700 void i40e_vsi_reset_stats(struct i40e_vsi *vsi);
 701 void i40e_pf_reset_stats(struct i40e_pf *pf);
 702 #ifdef CONFIG_DEBUG_FS
 703 void i40e_dbg_pf_init(struct i40e_pf *pf);
 704 void i40e_dbg_pf_exit(struct i40e_pf *pf);
 705 void i40e_dbg_init(void);
 706 void i40e_dbg_exit(void);
 707 #else
 708 static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {}
 709 static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
 710 static inline void i40e_dbg_init(void) {}
 711 static inline void i40e_dbg_exit(void) {}
 712 #endif /* CONFIG_DEBUG_FS*/
 713 /**
 714  * i40e_irq_dynamic_enable - Enable default interrupt generation settings
 715  * @vsi: pointer to a vsi
 716  * @vector: enable a particular Hw Interrupt vector, without base_vector
 717  **/
 718 static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
 719 {
 720         struct i40e_pf *pf = vsi->back;
 721         struct i40e_hw *hw = &pf->hw;
 722         u32 val;
 723
 724         val = I40E_PFINT_DYN_CTLN_INTENA_MASK |
 725               I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
 726               (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
 727         wr32(hw, I40E_PFINT_DYN_CTLN(vector + vsi->base_vector - 1), val);
 728         /* skip the flush */
 729 }
 730
 731 void i40e_irq_dynamic_disable(struct i40e_vsi *vsi, int vector);
 732 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf);
 733 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf);
 734 #ifdef I40E_FCOE
 735 struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
 736                                              struct net_device *netdev,
 737                                              struct rtnl_link_stats64 *storage);
 738 int i40e_set_mac(struct net_device *netdev, void *p);
 739 void i40e_set_rx_mode(struct net_device *netdev);
 740 #endif
 741 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
 742 #ifdef I40E_FCOE
 743 void i40e_tx_timeout(struct net_device *netdev);
 744 int i40e_vlan_rx_add_vid(struct net_device *netdev,
 745                          __always_unused __be16 proto, u16 vid);
 746 int i40e_vlan_rx_kill_vid(struct net_device *netdev,
 747                           __always_unused __be16 proto, u16 vid);
 748 #endif
 749 int i40e_open(struct net_device *netdev);
 750 int i40e_vsi_open(struct i40e_vsi *vsi);
 751 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
 752 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
 753 int i40e_vsi_kill_vlan(struct i40e_vsi *vsi, s16 vid);
 754 struct i40e_mac_filter *i40e_put_mac_in_vlan(struct i40e_vsi *vsi, u8 *macaddr,
 755                                              bool is_vf, bool is_netdev);
 756 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi);
 757 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr,
 758                                       bool is_vf, bool is_netdev);
 759 #ifdef I40E_FCOE
 760 int i40e_close(struct net_device *netdev);
 761 int i40e_setup_tc(struct net_device *netdev, u8 tc);
 762 void i40e_netpoll(struct net_device *netdev);
 763 int i40e_fcoe_enable(struct net_device *netdev);
 764 int i40e_fcoe_disable(struct net_device *netdev);
 765 int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt);
 766 u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf);
 767 void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi);
 768 void i40e_fcoe_vsi_setup(struct i40e_pf *pf);
 769 void i40e_init_pf_fcoe(struct i40e_pf *pf);
 770 int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi);
 771 void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi);
 772 int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring,
 773                              union i40e_rx_desc *rx_desc,
 774                              struct sk_buff *skb);
 775 void i40e_fcoe_handle_status(struct i40e_ring *rx_ring,
 776                              union i40e_rx_desc *rx_desc, u8 prog_id);
 777 #endif /* I40E_FCOE */
 778 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi);
 779 #ifdef CONFIG_I40E_DCB
 780 void i40e_dcbnl_flush_apps(struct i40e_pf *pf,
 781                            struct i40e_dcbx_config *old_cfg,
 782                            struct i40e_dcbx_config *new_cfg);
 783 void i40e_dcbnl_set_all(struct i40e_vsi *vsi);
 784 void i40e_dcbnl_setup(struct i40e_vsi *vsi);
 785 bool i40e_dcb_need_reconfig(struct i40e_pf *pf,
 786                             struct i40e_dcbx_config *old_cfg,
 787                             struct i40e_dcbx_config *new_cfg);
 788 #endif /* CONFIG_I40E_DCB */
 789 void i40e_ptp_rx_hang(struct i40e_vsi *vsi);
 790 void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf);
 791 void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index);
 792 void i40e_ptp_set_increment(struct i40e_pf *pf);
 793 int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 794 int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr);
 795 void i40e_ptp_init(struct i40e_pf *pf);
 796 void i40e_ptp_stop(struct i40e_pf *pf);
 797 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi);
 798 i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf);
 799 i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf);
 800 i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf);
 801 void i40e_print_link_message(struct i40e_vsi *vsi, bool isup);
 802 #endif /* _I40E_H_ */