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/hashtable.h> 43 #include <linux/string.h> 44 #include <linux/in.h> 45 #include <linux/ip.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_client.h" 63 #include "i40e_virtchnl.h" 64 #include "i40e_virtchnl_pf.h" 65 #include "i40e_txrx.h" 66 #include "i40e_dcb.h" 67 68 /* Useful i40e defaults */ 69 #define I40E_MAX_VEB 16 70 71 #define I40E_MAX_NUM_DESCRIPTORS 4096 72 #define I40E_MAX_CSR_SPACE (4 * 1024 * 1024 - 64 * 1024) 73 #define I40E_DEFAULT_NUM_DESCRIPTORS 512 74 #define I40E_REQ_DESCRIPTOR_MULTIPLE 32 75 #define I40E_MIN_NUM_DESCRIPTORS 64 76 #define I40E_MIN_MSIX 2 77 #define I40E_DEFAULT_NUM_VMDQ_VSI 8 /* max 256 VSIs */ 78 #define I40E_MIN_VSI_ALLOC 83 /* LAN, ATR, FCOE, 64 VF */ 79 /* max 16 qps */ 80 #define i40e_default_queues_per_vmdq(pf) \ 81 (((pf)->flags & I40E_FLAG_RSS_AQ_CAPABLE) ? 4 : 1) 82 #define I40E_DEFAULT_QUEUES_PER_VF 4 83 #define I40E_DEFAULT_QUEUES_PER_TC 1 /* should be a power of 2 */ 84 #define i40e_pf_get_max_q_per_tc(pf) \ 85 (((pf)->flags & I40E_FLAG_128_QP_RSS_CAPABLE) ? 128 : 64) 86 #define I40E_FDIR_RING 0 87 #define I40E_FDIR_RING_COUNT 32 88 #ifdef I40E_FCOE 89 #define I40E_DEFAULT_FCOE 8 /* default number of QPs for FCoE */ 90 #define I40E_MINIMUM_FCOE 1 /* minimum number of QPs for FCoE */ 91 #endif /* I40E_FCOE */ 92 #define I40E_MAX_AQ_BUF_SIZE 4096 93 #define I40E_AQ_LEN 256 94 #define I40E_AQ_WORK_LIMIT 66 /* max number of VFs + a little */ 95 #define I40E_MAX_USER_PRIORITY 8 96 #define I40E_DEFAULT_TRAFFIC_CLASS BIT(0) 97 #define I40E_DEFAULT_MSG_ENABLE 4 98 #define I40E_QUEUE_WAIT_RETRY_LIMIT 10 99 #define I40E_INT_NAME_STR_LEN (IFNAMSIZ + 16) 100 101 /* Ethtool Private Flags */ 102 #define I40E_PRIV_FLAGS_MFP_FLAG BIT(0) 103 #define I40E_PRIV_FLAGS_LINKPOLL_FLAG BIT(1) 104 #define I40E_PRIV_FLAGS_FD_ATR BIT(2) 105 #define I40E_PRIV_FLAGS_VEB_STATS BIT(3) 106 #define I40E_PRIV_FLAGS_HW_ATR_EVICT BIT(4) 107 #define I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT BIT(5) 108 109 #define I40E_NVM_VERSION_LO_SHIFT 0 110 #define I40E_NVM_VERSION_LO_MASK (0xff << I40E_NVM_VERSION_LO_SHIFT) 111 #define I40E_NVM_VERSION_HI_SHIFT 12 112 #define I40E_NVM_VERSION_HI_MASK (0xf << I40E_NVM_VERSION_HI_SHIFT) 113 #define I40E_OEM_VER_BUILD_MASK 0xffff 114 #define I40E_OEM_VER_PATCH_MASK 0xff 115 #define I40E_OEM_VER_BUILD_SHIFT 8 116 #define I40E_OEM_VER_SHIFT 24 117 #define I40E_PHY_DEBUG_ALL \ 118 (I40E_AQ_PHY_DEBUG_DISABLE_LINK_FW | \ 119 I40E_AQ_PHY_DEBUG_DISABLE_ALL_LINK_FW) 120 121 /* The values in here are decimal coded as hex as is the case in the NVM map*/ 122 #define I40E_CURRENT_NVM_VERSION_HI 0x2 123 #define I40E_CURRENT_NVM_VERSION_LO 0x40 124 125 #define I40E_RX_DESC(R, 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 #define I40E_IWARP_IRQ_PILE_ID (I40E_PILE_VALID_BIT - 2) 179 }; 180 181 #define I40E_DEFAULT_ATR_SAMPLE_RATE 20 182 #define I40E_FDIR_MAX_RAW_PACKET_SIZE 512 183 #define I40E_FDIR_BUFFER_FULL_MARGIN 10 184 #define I40E_FDIR_BUFFER_HEAD_ROOM 32 185 #define I40E_FDIR_BUFFER_HEAD_ROOM_FOR_ATR (I40E_FDIR_BUFFER_HEAD_ROOM * 4) 186 187 #define I40E_HKEY_ARRAY_SIZE ((I40E_PFQF_HKEY_MAX_INDEX + 1) * 4) 188 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4) 189 #define I40E_VF_HLUT_ARRAY_SIZE ((I40E_VFQF_HLUT1_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 /* DCB per TC information data structure */ 233 struct i40e_tc_info { 234 u16 qoffset; /* Queue offset from base queue */ 235 u16 qcount; /* Total Queues */ 236 u8 netdev_tc; /* Netdev TC index if netdev associated */ 237 }; 238 239 /* TC configuration data structure */ 240 struct i40e_tc_configuration { 241 u8 numtc; /* Total number of enabled TCs */ 242 u8 enabled_tc; /* TC map */ 243 struct i40e_tc_info tc_info[I40E_MAX_TRAFFIC_CLASS]; 244 }; 245 246 struct i40e_udp_port_config { 247 __be16 index; 248 u8 type; 249 }; 250 251 /* struct that defines the Ethernet device */ 252 struct i40e_pf { 253 struct pci_dev *pdev; 254 struct i40e_hw hw; 255 unsigned long state; 256 struct msix_entry *msix_entries; 257 bool fc_autoneg_status; 258 259 u16 eeprom_version; 260 u16 num_vmdq_vsis; /* num vmdq vsis this PF has set up */ 261 u16 num_vmdq_qps; /* num queue pairs per vmdq pool */ 262 u16 num_vmdq_msix; /* num queue vectors per vmdq pool */ 263 u16 num_req_vfs; /* num VFs requested for this VF */ 264 u16 num_vf_qps; /* num queue pairs per VF */ 265 #ifdef I40E_FCOE 266 u16 num_fcoe_qps; /* num fcoe queues this PF has set up */ 267 u16 num_fcoe_msix; /* num queue vectors per fcoe pool */ 268 #endif /* I40E_FCOE */ 269 u16 num_lan_qps; /* num lan queues this PF has set up */ 270 u16 num_lan_msix; /* num queue vectors for the base PF vsi */ 271 u16 num_fdsb_msix; /* num queue vectors for sideband Fdir */ 272 u16 num_iwarp_msix; /* num of iwarp vectors for this PF */ 273 int iwarp_base_vector; 274 int queues_left; /* queues left unclaimed */ 275 u16 alloc_rss_size; /* allocated RSS queues */ 276 u16 rss_size_max; /* HW defined max RSS queues */ 277 u16 fdir_pf_filter_count; /* num of guaranteed filters for this PF */ 278 u16 num_alloc_vsi; /* num VSIs this driver supports */ 279 u8 atr_sample_rate; 280 bool wol_en; 281 282 struct hlist_head fdir_filter_list; 283 u16 fdir_pf_active_filters; 284 unsigned long fd_flush_timestamp; 285 u32 fd_flush_cnt; 286 u32 fd_add_err; 287 u32 fd_atr_cnt; 288 u32 fd_tcp_rule; 289 290 struct i40e_udp_port_config udp_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS]; 291 u16 pending_udp_bitmap; 292 293 enum i40e_interrupt_policy int_policy; 294 u16 rx_itr_default; 295 u16 tx_itr_default; 296 u32 msg_enable; 297 char int_name[I40E_INT_NAME_STR_LEN]; 298 u16 adminq_work_limit; /* num of admin receive queue desc to process */ 299 unsigned long service_timer_period; 300 unsigned long service_timer_previous; 301 struct timer_list service_timer; 302 struct work_struct service_task; 303 304 u64 flags; 305 #define I40E_FLAG_RX_CSUM_ENABLED BIT_ULL(1) 306 #define I40E_FLAG_MSI_ENABLED BIT_ULL(2) 307 #define I40E_FLAG_MSIX_ENABLED BIT_ULL(3) 308 #define I40E_FLAG_RSS_ENABLED BIT_ULL(6) 309 #define I40E_FLAG_VMDQ_ENABLED BIT_ULL(7) 310 #define I40E_FLAG_FDIR_REQUIRES_REINIT BIT_ULL(8) 311 #define I40E_FLAG_NEED_LINK_UPDATE BIT_ULL(9) 312 #define I40E_FLAG_IWARP_ENABLED BIT_ULL(10) 313 #ifdef I40E_FCOE 314 #define I40E_FLAG_FCOE_ENABLED BIT_ULL(11) 315 #endif /* I40E_FCOE */ 316 #define I40E_FLAG_CLEAN_ADMINQ BIT_ULL(14) 317 #define I40E_FLAG_FILTER_SYNC BIT_ULL(15) 318 #define I40E_FLAG_SERVICE_CLIENT_REQUESTED BIT_ULL(16) 319 #define I40E_FLAG_PROCESS_MDD_EVENT BIT_ULL(17) 320 #define I40E_FLAG_PROCESS_VFLR_EVENT BIT_ULL(18) 321 #define I40E_FLAG_SRIOV_ENABLED BIT_ULL(19) 322 #define I40E_FLAG_DCB_ENABLED BIT_ULL(20) 323 #define I40E_FLAG_FD_SB_ENABLED BIT_ULL(21) 324 #define I40E_FLAG_FD_ATR_ENABLED BIT_ULL(22) 325 #define I40E_FLAG_PTP BIT_ULL(25) 326 #define I40E_FLAG_MFP_ENABLED BIT_ULL(26) 327 #define I40E_FLAG_UDP_FILTER_SYNC BIT_ULL(27) 328 #define I40E_FLAG_PORT_ID_VALID BIT_ULL(28) 329 #define I40E_FLAG_DCB_CAPABLE BIT_ULL(29) 330 #define I40E_FLAG_RSS_AQ_CAPABLE BIT_ULL(31) 331 #define I40E_FLAG_HW_ATR_EVICT_CAPABLE BIT_ULL(32) 332 #define I40E_FLAG_OUTER_UDP_CSUM_CAPABLE BIT_ULL(33) 333 #define I40E_FLAG_128_QP_RSS_CAPABLE BIT_ULL(34) 334 #define I40E_FLAG_WB_ON_ITR_CAPABLE BIT_ULL(35) 335 #define I40E_FLAG_VEB_STATS_ENABLED BIT_ULL(37) 336 #define I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE BIT_ULL(38) 337 #define I40E_FLAG_LINK_POLLING_ENABLED BIT_ULL(39) 338 #define I40E_FLAG_VEB_MODE_ENABLED BIT_ULL(40) 339 #define I40E_FLAG_GENEVE_OFFLOAD_CAPABLE BIT_ULL(41) 340 #define I40E_FLAG_NO_PCI_LINK_CHECK BIT_ULL(42) 341 #define I40E_FLAG_100M_SGMII_CAPABLE BIT_ULL(43) 342 #define I40E_FLAG_RESTART_AUTONEG BIT_ULL(44) 343 #define I40E_FLAG_NO_DCB_SUPPORT BIT_ULL(45) 344 #define I40E_FLAG_USE_SET_LLDP_MIB BIT_ULL(46) 345 #define I40E_FLAG_STOP_FW_LLDP BIT_ULL(47) 346 #define I40E_FLAG_PHY_CONTROLS_LEDS BIT_ULL(48) 347 #define I40E_FLAG_PF_MAC BIT_ULL(50) 348 #define I40E_FLAG_TRUE_PROMISC_SUPPORT BIT_ULL(51) 349 #define I40E_FLAG_HAVE_CRT_RETIMER BIT_ULL(52) 350 #define I40E_FLAG_PTP_L4_CAPABLE BIT_ULL(53) 351 #define I40E_FLAG_WOL_MC_MAGIC_PKT_WAKE BIT_ULL(54) 352 #define I40E_FLAG_TEMP_LINK_POLLING BIT_ULL(55) 353 354 /* tracks features that get auto disabled by errors */ 355 u64 auto_disable_flags; 356 357 #ifdef I40E_FCOE 358 struct i40e_fcoe fcoe; 359 360 #endif /* I40E_FCOE */ 361 bool stat_offsets_loaded; 362 struct i40e_hw_port_stats stats; 363 struct i40e_hw_port_stats stats_offsets; 364 u32 tx_timeout_count; 365 u32 tx_timeout_recovery_level; 366 unsigned long tx_timeout_last_recovery; 367 u32 tx_sluggish_count; 368 u32 hw_csum_rx_error; 369 u32 led_status; 370 u16 corer_count; /* Core reset count */ 371 u16 globr_count; /* Global reset count */ 372 u16 empr_count; /* EMP reset count */ 373 u16 pfr_count; /* PF reset count */ 374 u16 sw_int_count; /* SW interrupt count */ 375 376 struct mutex switch_mutex; 377 u16 lan_vsi; /* our default LAN VSI */ 378 u16 lan_veb; /* initial relay, if exists */ 379 #define I40E_NO_VEB 0xffff 380 #define I40E_NO_VSI 0xffff 381 u16 next_vsi; /* Next unallocated VSI - 0-based! */ 382 struct i40e_vsi **vsi; 383 struct i40e_veb *veb[I40E_MAX_VEB]; 384 385 struct i40e_lump_tracking *qp_pile; 386 struct i40e_lump_tracking *irq_pile; 387 388 /* switch config info */ 389 u16 pf_seid; 390 u16 main_vsi_seid; 391 u16 mac_seid; 392 struct kobject *switch_kobj; 393 #ifdef CONFIG_DEBUG_FS 394 struct dentry *i40e_dbg_pf; 395 #endif /* CONFIG_DEBUG_FS */ 396 bool cur_promisc; 397 398 u16 instance; /* A unique number per i40e_pf instance in the system */ 399 400 /* sr-iov config info */ 401 struct i40e_vf *vf; 402 int num_alloc_vfs; /* actual number of VFs allocated */ 403 u32 vf_aq_requests; 404 u32 arq_overflows; /* Not fatal, possibly indicative of problems */ 405 406 /* DCBx/DCBNL capability for PF that indicates 407 * whether DCBx is managed by firmware or host 408 * based agent (LLDPAD). Also, indicates what 409 * flavor of DCBx protocol (IEEE/CEE) is supported 410 * by the device. For now we're supporting IEEE 411 * mode only. 412 */ 413 u16 dcbx_cap; 414 415 u32 fcoe_hmc_filt_num; 416 u32 fcoe_hmc_cntx_num; 417 struct i40e_filter_control_settings filter_settings; 418 419 struct ptp_clock *ptp_clock; 420 struct ptp_clock_info ptp_caps; 421 struct sk_buff *ptp_tx_skb; 422 struct hwtstamp_config tstamp_config; 423 struct mutex tmreg_lock; /* Used to protect the SYSTIME registers. */ 424 u64 ptp_base_adj; 425 u32 tx_hwtstamp_timeouts; 426 u32 rx_hwtstamp_cleared; 427 u32 latch_event_flags; 428 spinlock_t ptp_rx_lock; /* Used to protect Rx timestamp registers. */ 429 unsigned long latch_events[4]; 430 bool ptp_tx; 431 bool ptp_rx; 432 u16 rss_table_size; /* HW RSS table size */ 433 /* These are only valid in NPAR modes */ 434 u32 npar_max_bw; 435 u32 npar_min_bw; 436 437 u32 ioremap_len; 438 u32 fd_inv; 439 u16 phy_led_val; 440 }; 441 442 /** 443 * i40e_mac_to_hkey - Convert a 6-byte MAC Address to a u64 hash key 444 * @macaddr: the MAC Address as the base key 445 * 446 * Simply copies the address and returns it as a u64 for hashing 447 **/ 448 static inline u64 i40e_addr_to_hkey(const u8 *macaddr) 449 { 450 u64 key = 0; 451 452 ether_addr_copy((u8 *)&key, macaddr); 453 return key; 454 } 455 456 enum i40e_filter_state { 457 I40E_FILTER_INVALID = 0, /* Invalid state */ 458 I40E_FILTER_NEW, /* New, not sent to FW yet */ 459 I40E_FILTER_ACTIVE, /* Added to switch by FW */ 460 I40E_FILTER_FAILED, /* Rejected by FW */ 461 I40E_FILTER_REMOVE, /* To be removed */ 462 /* There is no 'removed' state; the filter struct is freed */ 463 }; 464 struct i40e_mac_filter { 465 struct hlist_node hlist; 466 u8 macaddr[ETH_ALEN]; 467 #define I40E_VLAN_ANY -1 468 s16 vlan; 469 enum i40e_filter_state state; 470 }; 471 472 /* Wrapper structure to keep track of filters while we are preparing to send 473 * firmware commands. We cannot send firmware commands while holding a 474 * spinlock, since it might sleep. To avoid this, we wrap the added filters in 475 * a separate structure, which will track the state change and update the real 476 * filter while under lock. We can't simply hold the filters in a separate 477 * list, as this opens a window for a race condition when adding new MAC 478 * addresses to all VLANs, or when adding new VLANs to all MAC addresses. 479 */ 480 struct i40e_new_mac_filter { 481 struct hlist_node hlist; 482 struct i40e_mac_filter *f; 483 484 /* Track future changes to state separately */ 485 enum i40e_filter_state state; 486 }; 487 488 struct i40e_veb { 489 struct i40e_pf *pf; 490 u16 idx; 491 u16 veb_idx; /* index of VEB parent */ 492 u16 seid; 493 u16 uplink_seid; 494 u16 stats_idx; /* index of VEB parent */ 495 u8 enabled_tc; 496 u16 bridge_mode; /* Bridge Mode (VEB/VEPA) */ 497 u16 flags; 498 u16 bw_limit; 499 u8 bw_max_quanta; 500 bool is_abs_credits; 501 u8 bw_tc_share_credits[I40E_MAX_TRAFFIC_CLASS]; 502 u16 bw_tc_limit_credits[I40E_MAX_TRAFFIC_CLASS]; 503 u8 bw_tc_max_quanta[I40E_MAX_TRAFFIC_CLASS]; 504 struct kobject *kobj; 505 bool stat_offsets_loaded; 506 struct i40e_eth_stats stats; 507 struct i40e_eth_stats stats_offsets; 508 struct i40e_veb_tc_stats tc_stats; 509 struct i40e_veb_tc_stats tc_stats_offsets; 510 }; 511 512 /* struct that defines a VSI, associated with a dev */ 513 struct i40e_vsi { 514 struct net_device *netdev; 515 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 516 bool netdev_registered; 517 bool stat_offsets_loaded; 518 519 u32 current_netdev_flags; 520 unsigned long state; 521 #define I40E_VSI_FLAG_FILTER_CHANGED BIT(0) 522 #define I40E_VSI_FLAG_VEB_OWNER BIT(1) 523 unsigned long flags; 524 525 /* Per VSI lock to protect elements/hash (MAC filter) */ 526 spinlock_t mac_filter_hash_lock; 527 /* Fixed size hash table with 2^8 buckets for MAC filters */ 528 DECLARE_HASHTABLE(mac_filter_hash, 8); 529 bool has_vlan_filter; 530 531 /* VSI stats */ 532 struct rtnl_link_stats64 net_stats; 533 struct rtnl_link_stats64 net_stats_offsets; 534 struct i40e_eth_stats eth_stats; 535 struct i40e_eth_stats eth_stats_offsets; 536 #ifdef I40E_FCOE 537 struct i40e_fcoe_stats fcoe_stats; 538 struct i40e_fcoe_stats fcoe_stats_offsets; 539 bool fcoe_stat_offsets_loaded; 540 #endif 541 u32 tx_restart; 542 u32 tx_busy; 543 u64 tx_linearize; 544 u64 tx_force_wb; 545 u64 tx_lost_interrupt; 546 u32 rx_buf_failed; 547 u32 rx_page_failed; 548 549 /* These are containers of ring pointers, allocated at run-time */ 550 struct i40e_ring **rx_rings; 551 struct i40e_ring **tx_rings; 552 553 u32 active_filters; 554 u32 promisc_threshold; 555 556 u16 work_limit; 557 u16 int_rate_limit; /* value in usecs */ 558 559 u16 rss_table_size; /* HW RSS table size */ 560 u16 rss_size; /* Allocated RSS queues */ 561 u8 *rss_hkey_user; /* User configured hash keys */ 562 u8 *rss_lut_user; /* User configured lookup table entries */ 563 564 565 u16 max_frame; 566 u16 rx_buf_len; 567 568 /* List of q_vectors allocated to this VSI */ 569 struct i40e_q_vector **q_vectors; 570 int num_q_vectors; 571 int base_vector; 572 bool irqs_ready; 573 574 u16 seid; /* HW index of this VSI (absolute index) */ 575 u16 id; /* VSI number */ 576 u16 uplink_seid; 577 578 u16 base_queue; /* vsi's first queue in hw array */ 579 u16 alloc_queue_pairs; /* Allocated Tx/Rx queues */ 580 u16 req_queue_pairs; /* User requested queue pairs */ 581 u16 num_queue_pairs; /* Used tx and rx pairs */ 582 u16 num_desc; 583 enum i40e_vsi_type type; /* VSI type, e.g., LAN, FCoE, etc */ 584 s16 vf_id; /* Virtual function ID for SRIOV VSIs */ 585 586 struct i40e_tc_configuration tc_config; 587 struct i40e_aqc_vsi_properties_data info; 588 589 /* VSI BW limit (absolute across all TCs) */ 590 u16 bw_limit; /* VSI BW Limit (0 = disabled) */ 591 u8 bw_max_quanta; /* Max Quanta when BW limit is enabled */ 592 593 /* Relative TC credits across VSIs */ 594 u8 bw_ets_share_credits[I40E_MAX_TRAFFIC_CLASS]; 595 /* TC BW limit credits within VSI */ 596 u16 bw_ets_limit_credits[I40E_MAX_TRAFFIC_CLASS]; 597 /* TC BW limit max quanta within VSI */ 598 u8 bw_ets_max_quanta[I40E_MAX_TRAFFIC_CLASS]; 599 600 struct i40e_pf *back; /* Backreference to associated PF */ 601 u16 idx; /* index in pf->vsi[] */ 602 u16 veb_idx; /* index of VEB parent */ 603 struct kobject *kobj; /* sysfs object */ 604 bool current_isup; /* Sync 'link up' logging */ 605 enum i40e_aq_link_speed current_speed; /* Sync link speed logging */ 606 607 void *priv; /* client driver data reference. */ 608 609 /* VSI specific handlers */ 610 irqreturn_t (*irq_handler)(int irq, void *data); 611 } ____cacheline_internodealigned_in_smp; 612 613 struct i40e_netdev_priv { 614 struct i40e_vsi *vsi; 615 }; 616 617 /* struct that defines an interrupt vector */ 618 struct i40e_q_vector { 619 struct i40e_vsi *vsi; 620 621 u16 v_idx; /* index in the vsi->q_vector array. */ 622 u16 reg_idx; /* register index of the interrupt */ 623 624 struct napi_struct napi; 625 626 struct i40e_ring_container rx; 627 struct i40e_ring_container tx; 628 629 u8 num_ringpairs; /* total number of ring pairs in vector */ 630 631 #define I40E_Q_VECTOR_HUNG_DETECT 0 /* Bit Index for hung detection logic */ 632 unsigned long hung_detected; /* Set/Reset for hung_detection logic */ 633 634 cpumask_t affinity_mask; 635 struct irq_affinity_notify affinity_notify; 636 637 struct rcu_head rcu; /* to avoid race with update stats on free */ 638 char name[I40E_INT_NAME_STR_LEN]; 639 bool arm_wb_state; 640 #define ITR_COUNTDOWN_START 100 641 u8 itr_countdown; /* when 0 should adjust ITR */ 642 } ____cacheline_internodealigned_in_smp; 643 644 /* lan device */ 645 struct i40e_device { 646 struct list_head list; 647 struct i40e_pf *pf; 648 }; 649 650 /** 651 * i40e_nvm_version_str - format the NVM version strings 652 * @hw: ptr to the hardware info 653 **/ 654 static inline char *i40e_nvm_version_str(struct i40e_hw *hw) 655 { 656 static char buf[32]; 657 u32 full_ver; 658 u8 ver, patch; 659 u16 build; 660 661 full_ver = hw->nvm.oem_ver; 662 ver = (u8)(full_ver >> I40E_OEM_VER_SHIFT); 663 build = (u16)((full_ver >> I40E_OEM_VER_BUILD_SHIFT) & 664 I40E_OEM_VER_BUILD_MASK); 665 patch = (u8)(full_ver & I40E_OEM_VER_PATCH_MASK); 666 667 snprintf(buf, sizeof(buf), 668 "%x.%02x 0x%x %d.%d.%d", 669 (hw->nvm.version & I40E_NVM_VERSION_HI_MASK) >> 670 I40E_NVM_VERSION_HI_SHIFT, 671 (hw->nvm.version & I40E_NVM_VERSION_LO_MASK) >> 672 I40E_NVM_VERSION_LO_SHIFT, 673 hw->nvm.eetrack, ver, build, patch); 674 675 return buf; 676 } 677 678 /** 679 * i40e_netdev_to_pf: Retrieve the PF struct for given netdev 680 * @netdev: the corresponding netdev 681 * 682 * Return the PF struct for the given netdev 683 **/ 684 static inline struct i40e_pf *i40e_netdev_to_pf(struct net_device *netdev) 685 { 686 struct i40e_netdev_priv *np = netdev_priv(netdev); 687 struct i40e_vsi *vsi = np->vsi; 688 689 return vsi->back; 690 } 691 692 static inline void i40e_vsi_setup_irqhandler(struct i40e_vsi *vsi, 693 irqreturn_t (*irq_handler)(int, void *)) 694 { 695 vsi->irq_handler = irq_handler; 696 } 697 698 /** 699 * i40e_rx_is_programming_status - check for programming status descriptor 700 * @qw: the first quad word of the program status descriptor 701 * 702 * The value of in the descriptor length field indicate if this 703 * is a programming status descriptor for flow director or FCoE 704 * by the value of I40E_RX_PROG_STATUS_DESC_LENGTH, otherwise 705 * it is a packet descriptor. 706 **/ 707 static inline bool i40e_rx_is_programming_status(u64 qw) 708 { 709 return I40E_RX_PROG_STATUS_DESC_LENGTH == 710 (qw >> I40E_RX_PROG_STATUS_DESC_LENGTH_SHIFT); 711 } 712 713 /** 714 * i40e_get_fd_cnt_all - get the total FD filter space available 715 * @pf: pointer to the PF struct 716 **/ 717 static inline int i40e_get_fd_cnt_all(struct i40e_pf *pf) 718 { 719 return pf->hw.fdir_shared_filter_count + pf->fdir_pf_filter_count; 720 } 721 722 /* needed by i40e_ethtool.c */ 723 int i40e_up(struct i40e_vsi *vsi); 724 void i40e_down(struct i40e_vsi *vsi); 725 extern const char i40e_driver_name[]; 726 extern const char i40e_driver_version_str[]; 727 void i40e_do_reset_safe(struct i40e_pf *pf, u32 reset_flags); 728 void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags); 729 int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 730 int i40e_get_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 731 void i40e_fill_rss_lut(struct i40e_pf *pf, u8 *lut, 732 u16 rss_table_size, u16 rss_size); 733 struct i40e_vsi *i40e_find_vsi_from_id(struct i40e_pf *pf, u16 id); 734 /** 735 * i40e_find_vsi_by_type - Find and return Flow Director VSI 736 * @pf: PF to search for VSI 737 * @type: Value indicating type of VSI we are looking for 738 **/ 739 static inline struct i40e_vsi * 740 i40e_find_vsi_by_type(struct i40e_pf *pf, u16 type) 741 { 742 int i; 743 744 for (i = 0; i < pf->num_alloc_vsi; i++) { 745 struct i40e_vsi *vsi = pf->vsi[i]; 746 747 if (vsi && vsi->type == type) 748 return vsi; 749 } 750 751 return NULL; 752 } 753 void i40e_update_stats(struct i40e_vsi *vsi); 754 void i40e_update_eth_stats(struct i40e_vsi *vsi); 755 struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi); 756 int i40e_fetch_switch_configuration(struct i40e_pf *pf, 757 bool printconfig); 758 759 int i40e_add_del_fdir(struct i40e_vsi *vsi, 760 struct i40e_fdir_filter *input, bool add); 761 void i40e_fdir_check_and_reenable(struct i40e_pf *pf); 762 u32 i40e_get_current_fd_count(struct i40e_pf *pf); 763 u32 i40e_get_cur_guaranteed_fd_count(struct i40e_pf *pf); 764 u32 i40e_get_current_atr_cnt(struct i40e_pf *pf); 765 u32 i40e_get_global_fd_count(struct i40e_pf *pf); 766 bool i40e_set_ntuple(struct i40e_pf *pf, netdev_features_t features); 767 void i40e_set_ethtool_ops(struct net_device *netdev); 768 struct i40e_mac_filter *i40e_add_filter(struct i40e_vsi *vsi, 769 const u8 *macaddr, s16 vlan); 770 void __i40e_del_filter(struct i40e_vsi *vsi, struct i40e_mac_filter *f); 771 void i40e_del_filter(struct i40e_vsi *vsi, const u8 *macaddr, s16 vlan); 772 int i40e_sync_vsi_filters(struct i40e_vsi *vsi); 773 struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type, 774 u16 uplink, u32 param1); 775 int i40e_vsi_release(struct i40e_vsi *vsi); 776 #ifdef I40E_FCOE 777 void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, 778 struct i40e_vsi_context *ctxt, 779 u8 enabled_tc, bool is_add); 780 #endif 781 void i40e_service_event_schedule(struct i40e_pf *pf); 782 void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id, 783 u8 *msg, u16 len); 784 785 int i40e_vsi_start_rings(struct i40e_vsi *vsi); 786 void i40e_vsi_stop_rings(struct i40e_vsi *vsi); 787 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count); 788 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid, 789 u16 downlink_seid, u8 enabled_tc); 790 void i40e_veb_release(struct i40e_veb *veb); 791 792 int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc); 793 int i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid); 794 void i40e_vsi_remove_pvid(struct i40e_vsi *vsi); 795 void i40e_vsi_reset_stats(struct i40e_vsi *vsi); 796 void i40e_pf_reset_stats(struct i40e_pf *pf); 797 #ifdef CONFIG_DEBUG_FS 798 void i40e_dbg_pf_init(struct i40e_pf *pf); 799 void i40e_dbg_pf_exit(struct i40e_pf *pf); 800 void i40e_dbg_init(void); 801 void i40e_dbg_exit(void); 802 #else 803 static inline void i40e_dbg_pf_init(struct i40e_pf *pf) {} 804 static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {} 805 static inline void i40e_dbg_init(void) {} 806 static inline void i40e_dbg_exit(void) {} 807 #endif /* CONFIG_DEBUG_FS*/ 808 /* needed by client drivers */ 809 int i40e_lan_add_device(struct i40e_pf *pf); 810 int i40e_lan_del_device(struct i40e_pf *pf); 811 void i40e_client_subtask(struct i40e_pf *pf); 812 void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi); 813 void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset); 814 void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs); 815 void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id); 816 int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id, 817 enum i40e_client_type type); 818 /** 819 * i40e_irq_dynamic_enable - Enable default interrupt generation settings 820 * @vsi: pointer to a vsi 821 * @vector: enable a particular Hw Interrupt vector, without base_vector 822 **/ 823 static inline void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector) 824 { 825 struct i40e_pf *pf = vsi->back; 826 struct i40e_hw *hw = &pf->hw; 827 u32 val; 828 829 /* definitely clear the PBA here, as this function is meant to 830 * clean out all previous interrupts AND enable the interrupt 831 */ 832 val = I40E_PFINT_DYN_CTLN_INTENA_MASK | 833 I40E_PFINT_DYN_CTLN_CLEARPBA_MASK | 834 (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT); 835 wr32(hw, I40E_PFINT_DYN_CTLN(vector + vsi->base_vector - 1), val); 836 /* skip the flush */ 837 } 838 839 void i40e_irq_dynamic_disable_icr0(struct i40e_pf *pf); 840 void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf, bool clearpba); 841 #ifdef I40E_FCOE 842 void i40e_get_netdev_stats_struct(struct net_device *netdev, 843 struct rtnl_link_stats64 *storage); 844 int i40e_set_mac(struct net_device *netdev, void *p); 845 void i40e_set_rx_mode(struct net_device *netdev); 846 #endif 847 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd); 848 #ifdef I40E_FCOE 849 void i40e_tx_timeout(struct net_device *netdev); 850 int i40e_vlan_rx_add_vid(struct net_device *netdev, 851 __always_unused __be16 proto, u16 vid); 852 int i40e_vlan_rx_kill_vid(struct net_device *netdev, 853 __always_unused __be16 proto, u16 vid); 854 #endif 855 int i40e_open(struct net_device *netdev); 856 int i40e_close(struct net_device *netdev); 857 int i40e_vsi_open(struct i40e_vsi *vsi); 858 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi); 859 int i40e_add_vlan_all_mac(struct i40e_vsi *vsi, s16 vid); 860 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, u16 vid); 861 void i40e_rm_vlan_all_mac(struct i40e_vsi *vsi, s16 vid); 862 void i40e_vsi_kill_vlan(struct i40e_vsi *vsi, u16 vid); 863 struct i40e_mac_filter *i40e_add_mac_filter(struct i40e_vsi *vsi, 864 const u8 *macaddr); 865 int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr); 866 bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi); 867 struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, const u8 *macaddr); 868 #ifdef I40E_FCOE 869 int __i40e_setup_tc(struct net_device *netdev, u32 handle, __be16 proto, 870 struct tc_to_netdev *tc); 871 void i40e_netpoll(struct net_device *netdev); 872 int i40e_fcoe_enable(struct net_device *netdev); 873 int i40e_fcoe_disable(struct net_device *netdev); 874 int i40e_fcoe_vsi_init(struct i40e_vsi *vsi, struct i40e_vsi_context *ctxt); 875 u8 i40e_get_fcoe_tc_map(struct i40e_pf *pf); 876 void i40e_fcoe_config_netdev(struct net_device *netdev, struct i40e_vsi *vsi); 877 void i40e_fcoe_vsi_setup(struct i40e_pf *pf); 878 void i40e_init_pf_fcoe(struct i40e_pf *pf); 879 int i40e_fcoe_setup_ddp_resources(struct i40e_vsi *vsi); 880 void i40e_fcoe_free_ddp_resources(struct i40e_vsi *vsi); 881 int i40e_fcoe_handle_offload(struct i40e_ring *rx_ring, 882 union i40e_rx_desc *rx_desc, 883 struct sk_buff *skb); 884 void i40e_fcoe_handle_status(struct i40e_ring *rx_ring, 885 union i40e_rx_desc *rx_desc, u8 prog_id); 886 #endif /* I40E_FCOE */ 887 void i40e_vlan_stripping_enable(struct i40e_vsi *vsi); 888 #ifdef CONFIG_I40E_DCB 889 void i40e_dcbnl_flush_apps(struct i40e_pf *pf, 890 struct i40e_dcbx_config *old_cfg, 891 struct i40e_dcbx_config *new_cfg); 892 void i40e_dcbnl_set_all(struct i40e_vsi *vsi); 893 void i40e_dcbnl_setup(struct i40e_vsi *vsi); 894 bool i40e_dcb_need_reconfig(struct i40e_pf *pf, 895 struct i40e_dcbx_config *old_cfg, 896 struct i40e_dcbx_config *new_cfg); 897 #endif /* CONFIG_I40E_DCB */ 898 void i40e_ptp_rx_hang(struct i40e_vsi *vsi); 899 void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf); 900 void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index); 901 void i40e_ptp_set_increment(struct i40e_pf *pf); 902 int i40e_ptp_set_ts_config(struct i40e_pf *pf, struct ifreq *ifr); 903 int i40e_ptp_get_ts_config(struct i40e_pf *pf, struct ifreq *ifr); 904 void i40e_ptp_init(struct i40e_pf *pf); 905 void i40e_ptp_stop(struct i40e_pf *pf); 906 int i40e_is_vsi_uplink_mode_veb(struct i40e_vsi *vsi); 907 i40e_status i40e_get_npar_bw_setting(struct i40e_pf *pf); 908 i40e_status i40e_set_npar_bw_setting(struct i40e_pf *pf); 909 i40e_status i40e_commit_npar_bw_setting(struct i40e_pf *pf); 910 void i40e_print_link_message(struct i40e_vsi *vsi, bool isup); 911 #endif /* _I40E_H_ */ 912