1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (c) 2018, Intel Corporation. */ 3 4 #ifndef _ICE_H_ 5 #define _ICE_H_ 6 7 #include <linux/types.h> 8 #include <linux/errno.h> 9 #include <linux/kernel.h> 10 #include <linux/module.h> 11 #include <linux/netdevice.h> 12 #include <linux/compiler.h> 13 #include <linux/etherdevice.h> 14 #include <linux/skbuff.h> 15 #include <linux/cpumask.h> 16 #include <linux/rtnetlink.h> 17 #include <linux/if_vlan.h> 18 #include <linux/dma-mapping.h> 19 #include <linux/pci.h> 20 #include <linux/workqueue.h> 21 #include <linux/aer.h> 22 #include <linux/interrupt.h> 23 #include <linux/ethtool.h> 24 #include <linux/timer.h> 25 #include <linux/delay.h> 26 #include <linux/bitmap.h> 27 #include <linux/log2.h> 28 #include <linux/ip.h> 29 #include <linux/sctp.h> 30 #include <linux/ipv6.h> 31 #include <linux/if_bridge.h> 32 #include <linux/avf/virtchnl.h> 33 #include <net/ipv6.h> 34 #include "ice_devids.h" 35 #include "ice_type.h" 36 #include "ice_txrx.h" 37 #include "ice_dcb.h" 38 #include "ice_switch.h" 39 #include "ice_common.h" 40 #include "ice_sched.h" 41 #include "ice_virtchnl_pf.h" 42 #include "ice_sriov.h" 43 44 extern const char ice_drv_ver[]; 45 #define ICE_BAR0 0 46 #define ICE_REQ_DESC_MULTIPLE 32 47 #define ICE_MIN_NUM_DESC ICE_REQ_DESC_MULTIPLE 48 #define ICE_MAX_NUM_DESC 8160 49 /* set default number of Rx/Tx descriptors to the minimum between 50 * ICE_MAX_NUM_DESC and the number of descriptors to fill up an entire page 51 */ 52 #define ICE_DFLT_NUM_RX_DESC min_t(u16, ICE_MAX_NUM_DESC, \ 53 ALIGN(PAGE_SIZE / \ 54 sizeof(union ice_32byte_rx_desc), \ 55 ICE_REQ_DESC_MULTIPLE)) 56 #define ICE_DFLT_NUM_TX_DESC min_t(u16, ICE_MAX_NUM_DESC, \ 57 ALIGN(PAGE_SIZE / \ 58 sizeof(struct ice_tx_desc), \ 59 ICE_REQ_DESC_MULTIPLE)) 60 61 #define ICE_DFLT_TRAFFIC_CLASS BIT(0) 62 #define ICE_INT_NAME_STR_LEN (IFNAMSIZ + 16) 63 #define ICE_ETHTOOL_FWVER_LEN 32 64 #define ICE_AQ_LEN 64 65 #define ICE_MBXQ_LEN 64 66 #define ICE_MIN_MSIX 2 67 #define ICE_NO_VSI 0xffff 68 #define ICE_MAX_TXQS 2048 69 #define ICE_MAX_RXQS 2048 70 #define ICE_VSI_MAP_CONTIG 0 71 #define ICE_VSI_MAP_SCATTER 1 72 #define ICE_MAX_SCATTER_TXQS 16 73 #define ICE_MAX_SCATTER_RXQS 16 74 #define ICE_Q_WAIT_RETRY_LIMIT 10 75 #define ICE_Q_WAIT_MAX_RETRY (5 * ICE_Q_WAIT_RETRY_LIMIT) 76 #define ICE_MAX_LG_RSS_QS 256 77 #define ICE_MAX_SMALL_RSS_QS 8 78 #define ICE_RES_VALID_BIT 0x8000 79 #define ICE_RES_MISC_VEC_ID (ICE_RES_VALID_BIT - 1) 80 #define ICE_INVAL_Q_INDEX 0xffff 81 #define ICE_INVAL_VFID 256 82 #define ICE_MAX_VF_COUNT 256 83 #define ICE_MAX_QS_PER_VF 256 84 #define ICE_MIN_QS_PER_VF 1 85 #define ICE_DFLT_QS_PER_VF 4 86 #define ICE_NONQ_VECS_VF 1 87 #define ICE_MAX_SCATTER_QS_PER_VF 16 88 #define ICE_MAX_BASE_QS_PER_VF 16 89 #define ICE_MAX_INTR_PER_VF 65 90 #define ICE_MIN_INTR_PER_VF (ICE_MIN_QS_PER_VF + 1) 91 #define ICE_DFLT_INTR_PER_VF (ICE_DFLT_QS_PER_VF + 1) 92 93 #define ICE_MAX_RESET_WAIT 20 94 95 #define ICE_VSIQF_HKEY_ARRAY_SIZE ((VSIQF_HKEY_MAX_INDEX + 1) * 4) 96 97 #define ICE_DFLT_NETIF_M (NETIF_MSG_DRV | NETIF_MSG_PROBE | NETIF_MSG_LINK) 98 99 #define ICE_MAX_MTU (ICE_AQ_SET_MAC_FRAME_SIZE_MAX - \ 100 (ETH_HLEN + ETH_FCS_LEN + (VLAN_HLEN * 2))) 101 102 #define ICE_UP_TABLE_TRANSLATE(val, i) \ 103 (((val) << ICE_AQ_VSI_UP_TABLE_UP##i##_S) & \ 104 ICE_AQ_VSI_UP_TABLE_UP##i##_M) 105 106 #define ICE_TX_DESC(R, i) (&(((struct ice_tx_desc *)((R)->desc))[i])) 107 #define ICE_RX_DESC(R, i) (&(((union ice_32b_rx_flex_desc *)((R)->desc))[i])) 108 #define ICE_TX_CTX_DESC(R, i) (&(((struct ice_tx_ctx_desc *)((R)->desc))[i])) 109 110 /* Macro for each VSI in a PF */ 111 #define ice_for_each_vsi(pf, i) \ 112 for ((i) = 0; (i) < (pf)->num_alloc_vsi; (i)++) 113 114 /* Macros for each Tx/Rx ring in a VSI */ 115 #define ice_for_each_txq(vsi, i) \ 116 for ((i) = 0; (i) < (vsi)->num_txq; (i)++) 117 118 #define ice_for_each_rxq(vsi, i) \ 119 for ((i) = 0; (i) < (vsi)->num_rxq; (i)++) 120 121 /* Macros for each allocated Tx/Rx ring whether used or not in a VSI */ 122 #define ice_for_each_alloc_txq(vsi, i) \ 123 for ((i) = 0; (i) < (vsi)->alloc_txq; (i)++) 124 125 #define ice_for_each_alloc_rxq(vsi, i) \ 126 for ((i) = 0; (i) < (vsi)->alloc_rxq; (i)++) 127 128 #define ice_for_each_q_vector(vsi, i) \ 129 for ((i) = 0; (i) < (vsi)->num_q_vectors; (i)++) 130 131 #define ICE_UCAST_PROMISC_BITS (ICE_PROMISC_UCAST_TX | ICE_PROMISC_MCAST_TX | \ 132 ICE_PROMISC_UCAST_RX | ICE_PROMISC_MCAST_RX) 133 134 #define ICE_UCAST_VLAN_PROMISC_BITS (ICE_PROMISC_UCAST_TX | \ 135 ICE_PROMISC_MCAST_TX | \ 136 ICE_PROMISC_UCAST_RX | \ 137 ICE_PROMISC_MCAST_RX | \ 138 ICE_PROMISC_VLAN_TX | \ 139 ICE_PROMISC_VLAN_RX) 140 141 #define ICE_MCAST_PROMISC_BITS (ICE_PROMISC_MCAST_TX | ICE_PROMISC_MCAST_RX) 142 143 #define ICE_MCAST_VLAN_PROMISC_BITS (ICE_PROMISC_MCAST_TX | \ 144 ICE_PROMISC_MCAST_RX | \ 145 ICE_PROMISC_VLAN_TX | \ 146 ICE_PROMISC_VLAN_RX) 147 148 struct ice_tc_info { 149 u16 qoffset; 150 u16 qcount_tx; 151 u16 qcount_rx; 152 u8 netdev_tc; 153 }; 154 155 struct ice_tc_cfg { 156 u8 numtc; /* Total number of enabled TCs */ 157 u8 ena_tc; /* Tx map */ 158 struct ice_tc_info tc_info[ICE_MAX_TRAFFIC_CLASS]; 159 }; 160 161 struct ice_res_tracker { 162 u16 num_entries; 163 u16 search_hint; 164 u16 list[1]; 165 }; 166 167 struct ice_qs_cfg { 168 struct mutex *qs_mutex; /* will be assigned to &pf->avail_q_mutex */ 169 unsigned long *pf_map; 170 unsigned long pf_map_size; 171 unsigned int q_count; 172 unsigned int scatter_count; 173 u16 *vsi_map; 174 u16 vsi_map_offset; 175 u8 mapping_mode; 176 }; 177 178 struct ice_sw { 179 struct ice_pf *pf; 180 u16 sw_id; /* switch ID for this switch */ 181 u16 bridge_mode; /* VEB/VEPA/Port Virtualizer */ 182 }; 183 184 enum ice_state { 185 __ICE_DOWN, 186 __ICE_NEEDS_RESTART, 187 __ICE_PREPARED_FOR_RESET, /* set by driver when prepared */ 188 __ICE_RESET_OICR_RECV, /* set by driver after rcv reset OICR */ 189 __ICE_PFR_REQ, /* set by driver and peers */ 190 __ICE_CORER_REQ, /* set by driver and peers */ 191 __ICE_GLOBR_REQ, /* set by driver and peers */ 192 __ICE_CORER_RECV, /* set by OICR handler */ 193 __ICE_GLOBR_RECV, /* set by OICR handler */ 194 __ICE_EMPR_RECV, /* set by OICR handler */ 195 __ICE_SUSPENDED, /* set on module remove path */ 196 __ICE_RESET_FAILED, /* set by reset/rebuild */ 197 /* When checking for the PF to be in a nominal operating state, the 198 * bits that are grouped at the beginning of the list need to be 199 * checked. Bits occurring before __ICE_STATE_NOMINAL_CHECK_BITS will 200 * be checked. If you need to add a bit into consideration for nominal 201 * operating state, it must be added before 202 * __ICE_STATE_NOMINAL_CHECK_BITS. Do not move this entry's position 203 * without appropriate consideration. 204 */ 205 __ICE_STATE_NOMINAL_CHECK_BITS, 206 __ICE_ADMINQ_EVENT_PENDING, 207 __ICE_MAILBOXQ_EVENT_PENDING, 208 __ICE_MDD_EVENT_PENDING, 209 __ICE_VFLR_EVENT_PENDING, 210 __ICE_FLTR_OVERFLOW_PROMISC, 211 __ICE_VF_DIS, 212 __ICE_CFG_BUSY, 213 __ICE_SERVICE_SCHED, 214 __ICE_SERVICE_DIS, 215 __ICE_STATE_NBITS /* must be last */ 216 }; 217 218 enum ice_vsi_flags { 219 ICE_VSI_FLAG_UMAC_FLTR_CHANGED, 220 ICE_VSI_FLAG_MMAC_FLTR_CHANGED, 221 ICE_VSI_FLAG_VLAN_FLTR_CHANGED, 222 ICE_VSI_FLAG_PROMISC_CHANGED, 223 ICE_VSI_FLAG_NBITS /* must be last */ 224 }; 225 226 /* struct that defines a VSI, associated with a dev */ 227 struct ice_vsi { 228 struct net_device *netdev; 229 struct ice_sw *vsw; /* switch this VSI is on */ 230 struct ice_pf *back; /* back pointer to PF */ 231 struct ice_port_info *port_info; /* back pointer to port_info */ 232 struct ice_ring **rx_rings; /* Rx ring array */ 233 struct ice_ring **tx_rings; /* Tx ring array */ 234 struct ice_q_vector **q_vectors; /* q_vector array */ 235 236 irqreturn_t (*irq_handler)(int irq, void *data); 237 238 u64 tx_linearize; 239 DECLARE_BITMAP(state, __ICE_STATE_NBITS); 240 DECLARE_BITMAP(flags, ICE_VSI_FLAG_NBITS); 241 unsigned int current_netdev_flags; 242 u32 tx_restart; 243 u32 tx_busy; 244 u32 rx_buf_failed; 245 u32 rx_page_failed; 246 int num_q_vectors; 247 int sw_base_vector; /* Irq base for OS reserved vectors */ 248 int hw_base_vector; /* HW (absolute) index of a vector */ 249 enum ice_vsi_type type; 250 u16 vsi_num; /* HW (absolute) index of this VSI */ 251 u16 idx; /* software index in pf->vsi[] */ 252 253 /* Interrupt thresholds */ 254 u16 work_lmt; 255 256 s16 vf_id; /* VF ID for SR-IOV VSIs */ 257 258 u16 ethtype; /* Ethernet protocol for pause frame */ 259 260 /* RSS config */ 261 u16 rss_table_size; /* HW RSS table size */ 262 u16 rss_size; /* Allocated RSS queues */ 263 u8 *rss_hkey_user; /* User configured hash keys */ 264 u8 *rss_lut_user; /* User configured lookup table entries */ 265 u8 rss_lut_type; /* used to configure Get/Set RSS LUT AQ call */ 266 267 u16 max_frame; 268 u16 rx_buf_len; 269 270 struct ice_aqc_vsi_props info; /* VSI properties */ 271 272 /* VSI stats */ 273 struct rtnl_link_stats64 net_stats; 274 struct ice_eth_stats eth_stats; 275 struct ice_eth_stats eth_stats_prev; 276 277 struct list_head tmp_sync_list; /* MAC filters to be synced */ 278 struct list_head tmp_unsync_list; /* MAC filters to be unsynced */ 279 280 u8 irqs_ready; 281 u8 current_isup; /* Sync 'link up' logging */ 282 u8 stat_offsets_loaded; 283 u8 vlan_ena; 284 285 /* queue information */ 286 u8 tx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ 287 u8 rx_mapping_mode; /* ICE_MAP_MODE_[CONTIG|SCATTER] */ 288 u16 txq_map[ICE_MAX_TXQS]; /* index in pf->avail_txqs */ 289 u16 rxq_map[ICE_MAX_RXQS]; /* index in pf->avail_rxqs */ 290 u16 alloc_txq; /* Allocated Tx queues */ 291 u16 num_txq; /* Used Tx queues */ 292 u16 alloc_rxq; /* Allocated Rx queues */ 293 u16 num_rxq; /* Used Rx queues */ 294 u16 num_rx_desc; 295 u16 num_tx_desc; 296 struct ice_tc_cfg tc_cfg; 297 } ____cacheline_internodealigned_in_smp; 298 299 /* struct that defines an interrupt vector */ 300 struct ice_q_vector { 301 struct ice_vsi *vsi; 302 303 u16 v_idx; /* index in the vsi->q_vector array. */ 304 u16 reg_idx; 305 u8 num_ring_rx; /* total number of Rx rings in vector */ 306 u8 num_ring_tx; /* total number of Tx rings in vector */ 307 u8 itr_countdown; /* when 0 should adjust adaptive ITR */ 308 /* in usecs, need to use ice_intrl_to_usecs_reg() before writing this 309 * value to the device 310 */ 311 u8 intrl; 312 313 struct napi_struct napi; 314 315 struct ice_ring_container rx; 316 struct ice_ring_container tx; 317 318 cpumask_t affinity_mask; 319 struct irq_affinity_notify affinity_notify; 320 321 char name[ICE_INT_NAME_STR_LEN]; 322 } ____cacheline_internodealigned_in_smp; 323 324 enum ice_pf_flags { 325 ICE_FLAG_MSIX_ENA, 326 ICE_FLAG_FLTR_SYNC, 327 ICE_FLAG_RSS_ENA, 328 ICE_FLAG_SRIOV_ENA, 329 ICE_FLAG_SRIOV_CAPABLE, 330 ICE_FLAG_DCB_CAPABLE, 331 ICE_FLAG_DCB_ENA, 332 ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, 333 ICE_FLAG_DISABLE_FW_LLDP, 334 ICE_FLAG_ETHTOOL_CTXT, /* set when ethtool holds RTNL lock */ 335 ICE_PF_FLAGS_NBITS /* must be last */ 336 }; 337 338 struct ice_pf { 339 struct pci_dev *pdev; 340 341 /* OS reserved IRQ details */ 342 struct msix_entry *msix_entries; 343 struct ice_res_tracker *sw_irq_tracker; 344 345 /* HW reserved Interrupts for this PF */ 346 struct ice_res_tracker *hw_irq_tracker; 347 348 struct ice_vsi **vsi; /* VSIs created by the driver */ 349 struct ice_sw *first_sw; /* first switch created by firmware */ 350 /* Virtchnl/SR-IOV config info */ 351 struct ice_vf *vf; 352 int num_alloc_vfs; /* actual number of VFs allocated */ 353 u16 num_vfs_supported; /* num VFs supported for this PF */ 354 u16 num_vf_qps; /* num queue pairs per VF */ 355 u16 num_vf_msix; /* num vectors per VF */ 356 DECLARE_BITMAP(state, __ICE_STATE_NBITS); 357 DECLARE_BITMAP(avail_txqs, ICE_MAX_TXQS); 358 DECLARE_BITMAP(avail_rxqs, ICE_MAX_RXQS); 359 DECLARE_BITMAP(flags, ICE_PF_FLAGS_NBITS); 360 unsigned long serv_tmr_period; 361 unsigned long serv_tmr_prev; 362 struct timer_list serv_tmr; 363 struct work_struct serv_task; 364 struct mutex avail_q_mutex; /* protects access to avail_[rx|tx]qs */ 365 struct mutex sw_mutex; /* lock for protecting VSI alloc flow */ 366 u32 msg_enable; 367 u32 hw_csum_rx_error; 368 u32 sw_oicr_idx; /* Other interrupt cause SW vector index */ 369 u32 num_avail_sw_msix; /* remaining MSIX SW vectors left unclaimed */ 370 u32 hw_oicr_idx; /* Other interrupt cause vector HW index */ 371 u32 num_avail_hw_msix; /* remaining HW MSIX vectors left unclaimed */ 372 u32 num_lan_msix; /* Total MSIX vectors for base driver */ 373 u16 num_lan_tx; /* num LAN Tx queues setup */ 374 u16 num_lan_rx; /* num LAN Rx queues setup */ 375 u16 q_left_tx; /* remaining num Tx queues left unclaimed */ 376 u16 q_left_rx; /* remaining num Rx queues left unclaimed */ 377 u16 next_vsi; /* Next free slot in pf->vsi[] - 0-based! */ 378 u16 num_alloc_vsi; 379 u16 corer_count; /* Core reset count */ 380 u16 globr_count; /* Global reset count */ 381 u16 empr_count; /* EMP reset count */ 382 u16 pfr_count; /* PF reset count */ 383 384 struct ice_hw_port_stats stats; 385 struct ice_hw_port_stats stats_prev; 386 struct ice_hw hw; 387 u8 stat_prev_loaded; /* has previous stats been loaded */ 388 #ifdef CONFIG_DCB 389 u16 dcbx_cap; 390 #endif /* CONFIG_DCB */ 391 u32 tx_timeout_count; 392 unsigned long tx_timeout_last_recovery; 393 u32 tx_timeout_recovery_level; 394 char int_name[ICE_INT_NAME_STR_LEN]; 395 }; 396 397 struct ice_netdev_priv { 398 struct ice_vsi *vsi; 399 }; 400 401 /** 402 * ice_irq_dynamic_ena - Enable default interrupt generation settings 403 * @hw: pointer to HW struct 404 * @vsi: pointer to VSI struct, can be NULL 405 * @q_vector: pointer to q_vector, can be NULL 406 */ 407 static inline void 408 ice_irq_dynamic_ena(struct ice_hw *hw, struct ice_vsi *vsi, 409 struct ice_q_vector *q_vector) 410 { 411 u32 vector = (vsi && q_vector) ? q_vector->reg_idx : 412 ((struct ice_pf *)hw->back)->hw_oicr_idx; 413 int itr = ICE_ITR_NONE; 414 u32 val; 415 416 /* clear the PBA here, as this function is meant to clean out all 417 * previous interrupts and enable the interrupt 418 */ 419 val = GLINT_DYN_CTL_INTENA_M | GLINT_DYN_CTL_CLEARPBA_M | 420 (itr << GLINT_DYN_CTL_ITR_INDX_S); 421 if (vsi) 422 if (test_bit(__ICE_DOWN, vsi->state)) 423 return; 424 wr32(hw, GLINT_DYN_CTL(vector), val); 425 } 426 427 /** 428 * ice_find_vsi_by_type - Find and return VSI of a given type 429 * @pf: PF to search for VSI 430 * @type: Value indicating type of VSI we are looking for 431 */ 432 static inline struct ice_vsi * 433 ice_find_vsi_by_type(struct ice_pf *pf, enum ice_vsi_type type) 434 { 435 int i; 436 437 for (i = 0; i < pf->num_alloc_vsi; i++) { 438 struct ice_vsi *vsi = pf->vsi[i]; 439 440 if (vsi && vsi->type == type) 441 return vsi; 442 } 443 444 return NULL; 445 } 446 447 void ice_set_ethtool_ops(struct net_device *netdev); 448 int ice_up(struct ice_vsi *vsi); 449 int ice_down(struct ice_vsi *vsi); 450 int ice_set_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 451 int ice_get_rss(struct ice_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size); 452 void ice_fill_rss_lut(u8 *lut, u16 rss_table_size, u16 rss_size); 453 void ice_print_link_msg(struct ice_vsi *vsi, bool isup); 454 void ice_napi_del(struct ice_vsi *vsi); 455 #ifdef CONFIG_DCB 456 int ice_pf_ena_all_vsi(struct ice_pf *pf, bool locked); 457 void ice_pf_dis_all_vsi(struct ice_pf *pf, bool locked); 458 #endif /* CONFIG_DCB */ 459 460 #endif /* _ICE_H_ */ 461