1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 #ifndef _I40EVF_H_ 5 #define _I40EVF_H_ 6 7 #include <linux/module.h> 8 #include <linux/pci.h> 9 #include <linux/aer.h> 10 #include <linux/netdevice.h> 11 #include <linux/vmalloc.h> 12 #include <linux/interrupt.h> 13 #include <linux/ethtool.h> 14 #include <linux/if_vlan.h> 15 #include <linux/ip.h> 16 #include <linux/tcp.h> 17 #include <linux/sctp.h> 18 #include <linux/ipv6.h> 19 #include <linux/kernel.h> 20 #include <linux/bitops.h> 21 #include <linux/timer.h> 22 #include <linux/workqueue.h> 23 #include <linux/wait.h> 24 #include <linux/delay.h> 25 #include <linux/gfp.h> 26 #include <linux/skbuff.h> 27 #include <linux/dma-mapping.h> 28 #include <linux/etherdevice.h> 29 #include <linux/socket.h> 30 #include <linux/jiffies.h> 31 #include <net/ip6_checksum.h> 32 #include <net/pkt_cls.h> 33 #include <net/udp.h> 34 #include <net/tc_act/tc_gact.h> 35 #include <net/tc_act/tc_mirred.h> 36 37 #include "i40e_type.h" 38 #include <linux/avf/virtchnl.h> 39 #include "i40e_txrx.h" 40 41 #define DEFAULT_DEBUG_LEVEL_SHIFT 3 42 #define PFX "i40evf: " 43 44 /* VSI state flags shared with common code */ 45 enum i40evf_vsi_state_t { 46 __I40E_VSI_DOWN, 47 /* This must be last as it determines the size of the BITMAP */ 48 __I40E_VSI_STATE_SIZE__, 49 }; 50 51 /* dummy struct to make common code less painful */ 52 struct i40e_vsi { 53 struct i40evf_adapter *back; 54 struct net_device *netdev; 55 unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; 56 u16 seid; 57 u16 id; 58 DECLARE_BITMAP(state, __I40E_VSI_STATE_SIZE__); 59 int base_vector; 60 u16 work_limit; 61 u16 qs_handle; 62 void *priv; /* client driver data reference. */ 63 }; 64 65 /* How many Rx Buffers do we bundle into one write to the hardware ? */ 66 #define I40EVF_RX_BUFFER_WRITE 16 /* Must be power of 2 */ 67 #define I40EVF_DEFAULT_TXD 512 68 #define I40EVF_DEFAULT_RXD 512 69 #define I40EVF_MAX_TXD 4096 70 #define I40EVF_MIN_TXD 64 71 #define I40EVF_MAX_RXD 4096 72 #define I40EVF_MIN_RXD 64 73 #define I40EVF_REQ_DESCRIPTOR_MULTIPLE 32 74 #define I40EVF_MAX_AQ_BUF_SIZE 4096 75 #define I40EVF_AQ_LEN 32 76 #define I40EVF_AQ_MAX_ERR 20 /* times to try before resetting AQ */ 77 78 #define MAXIMUM_ETHERNET_VLAN_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) 79 80 #define I40E_RX_DESC(R, i) (&(((union i40e_32byte_rx_desc *)((R)->desc))[i])) 81 #define I40E_TX_DESC(R, i) (&(((struct i40e_tx_desc *)((R)->desc))[i])) 82 #define I40E_TX_CTXTDESC(R, i) \ 83 (&(((struct i40e_tx_context_desc *)((R)->desc))[i])) 84 #define I40EVF_MAX_REQ_QUEUES 4 85 86 #define I40EVF_HKEY_ARRAY_SIZE ((I40E_VFQF_HKEY_MAX_INDEX + 1) * 4) 87 #define I40EVF_HLUT_ARRAY_SIZE ((I40E_VFQF_HLUT_MAX_INDEX + 1) * 4) 88 #define I40EVF_MBPS_DIVISOR 125000 /* divisor to convert to Mbps */ 89 90 /* MAX_MSIX_Q_VECTORS of these are allocated, 91 * but we only use one per queue-specific vector. 92 */ 93 struct i40e_q_vector { 94 struct i40evf_adapter *adapter; 95 struct i40e_vsi *vsi; 96 struct napi_struct napi; 97 struct i40e_ring_container rx; 98 struct i40e_ring_container tx; 99 u32 ring_mask; 100 u8 itr_countdown; /* when 0 should adjust adaptive ITR */ 101 u8 num_ringpairs; /* total number of ring pairs in vector */ 102 u16 v_idx; /* index in the vsi->q_vector array. */ 103 u16 reg_idx; /* register index of the interrupt */ 104 char name[IFNAMSIZ + 15]; 105 bool arm_wb_state; 106 cpumask_t affinity_mask; 107 struct irq_affinity_notify affinity_notify; 108 }; 109 110 /* Helper macros to switch between ints/sec and what the register uses. 111 * And yes, it's the same math going both ways. The lowest value 112 * supported by all of the i40e hardware is 8. 113 */ 114 #define EITR_INTS_PER_SEC_TO_REG(_eitr) \ 115 ((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8) 116 #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG 117 118 #define I40EVF_DESC_UNUSED(R) \ 119 ((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \ 120 (R)->next_to_clean - (R)->next_to_use - 1) 121 122 #define I40EVF_RX_DESC_ADV(R, i) \ 123 (&(((union i40e_adv_rx_desc *)((R).desc))[i])) 124 #define I40EVF_TX_DESC_ADV(R, i) \ 125 (&(((union i40e_adv_tx_desc *)((R).desc))[i])) 126 #define I40EVF_TX_CTXTDESC_ADV(R, i) \ 127 (&(((struct i40e_adv_tx_context_desc *)((R).desc))[i])) 128 129 #define OTHER_VECTOR 1 130 #define NONQ_VECS (OTHER_VECTOR) 131 132 #define MIN_MSIX_Q_VECTORS 1 133 #define MIN_MSIX_COUNT (MIN_MSIX_Q_VECTORS + NONQ_VECS) 134 135 #define I40EVF_QUEUE_END_OF_LIST 0x7FF 136 #define I40EVF_FREE_VECTOR 0x7FFF 137 struct i40evf_mac_filter { 138 struct list_head list; 139 u8 macaddr[ETH_ALEN]; 140 bool remove; /* filter needs to be removed */ 141 bool add; /* filter needs to be added */ 142 }; 143 144 struct i40evf_vlan_filter { 145 struct list_head list; 146 u16 vlan; 147 bool remove; /* filter needs to be removed */ 148 bool add; /* filter needs to be added */ 149 }; 150 151 #define I40EVF_MAX_TRAFFIC_CLASS 4 152 /* State of traffic class creation */ 153 enum i40evf_tc_state_t { 154 __I40EVF_TC_INVALID, /* no traffic class, default state */ 155 __I40EVF_TC_RUNNING, /* traffic classes have been created */ 156 }; 157 158 /* channel info */ 159 struct i40evf_channel_config { 160 struct virtchnl_channel_info ch_info[I40EVF_MAX_TRAFFIC_CLASS]; 161 enum i40evf_tc_state_t state; 162 u8 total_qps; 163 }; 164 165 /* State of cloud filter */ 166 enum i40evf_cloud_filter_state_t { 167 __I40EVF_CF_INVALID, /* cloud filter not added */ 168 __I40EVF_CF_ADD_PENDING, /* cloud filter pending add by the PF */ 169 __I40EVF_CF_DEL_PENDING, /* cloud filter pending del by the PF */ 170 __I40EVF_CF_ACTIVE, /* cloud filter is active */ 171 }; 172 173 /* Driver state. The order of these is important! */ 174 enum i40evf_state_t { 175 __I40EVF_STARTUP, /* driver loaded, probe complete */ 176 __I40EVF_REMOVE, /* driver is being unloaded */ 177 __I40EVF_INIT_VERSION_CHECK, /* aq msg sent, awaiting reply */ 178 __I40EVF_INIT_GET_RESOURCES, /* aq msg sent, awaiting reply */ 179 __I40EVF_INIT_SW, /* got resources, setting up structs */ 180 __I40EVF_RESETTING, /* in reset */ 181 /* Below here, watchdog is running */ 182 __I40EVF_DOWN, /* ready, can be opened */ 183 __I40EVF_DOWN_PENDING, /* descending, waiting for watchdog */ 184 __I40EVF_TESTING, /* in ethtool self-test */ 185 __I40EVF_RUNNING, /* opened, working */ 186 }; 187 188 enum i40evf_critical_section_t { 189 __I40EVF_IN_CRITICAL_TASK, /* cannot be interrupted */ 190 __I40EVF_IN_CLIENT_TASK, 191 __I40EVF_IN_REMOVE_TASK, /* device being removed */ 192 }; 193 194 #define I40EVF_CLOUD_FIELD_OMAC 0x01 195 #define I40EVF_CLOUD_FIELD_IMAC 0x02 196 #define I40EVF_CLOUD_FIELD_IVLAN 0x04 197 #define I40EVF_CLOUD_FIELD_TEN_ID 0x08 198 #define I40EVF_CLOUD_FIELD_IIP 0x10 199 200 #define I40EVF_CF_FLAGS_OMAC I40EVF_CLOUD_FIELD_OMAC 201 #define I40EVF_CF_FLAGS_IMAC I40EVF_CLOUD_FIELD_IMAC 202 #define I40EVF_CF_FLAGS_IMAC_IVLAN (I40EVF_CLOUD_FIELD_IMAC |\ 203 I40EVF_CLOUD_FIELD_IVLAN) 204 #define I40EVF_CF_FLAGS_IMAC_TEN_ID (I40EVF_CLOUD_FIELD_IMAC |\ 205 I40EVF_CLOUD_FIELD_TEN_ID) 206 #define I40EVF_CF_FLAGS_OMAC_TEN_ID_IMAC (I40EVF_CLOUD_FIELD_OMAC |\ 207 I40EVF_CLOUD_FIELD_IMAC |\ 208 I40EVF_CLOUD_FIELD_TEN_ID) 209 #define I40EVF_CF_FLAGS_IMAC_IVLAN_TEN_ID (I40EVF_CLOUD_FIELD_IMAC |\ 210 I40EVF_CLOUD_FIELD_IVLAN |\ 211 I40EVF_CLOUD_FIELD_TEN_ID) 212 #define I40EVF_CF_FLAGS_IIP I40E_CLOUD_FIELD_IIP 213 214 /* bookkeeping of cloud filters */ 215 struct i40evf_cloud_filter { 216 enum i40evf_cloud_filter_state_t state; 217 struct list_head list; 218 struct virtchnl_filter f; 219 unsigned long cookie; 220 bool del; /* filter needs to be deleted */ 221 bool add; /* filter needs to be added */ 222 }; 223 224 /* board specific private data structure */ 225 struct i40evf_adapter { 226 struct timer_list watchdog_timer; 227 struct work_struct reset_task; 228 struct work_struct adminq_task; 229 struct delayed_work client_task; 230 struct delayed_work init_task; 231 wait_queue_head_t down_waitqueue; 232 struct i40e_q_vector *q_vectors; 233 struct list_head vlan_filter_list; 234 struct list_head mac_filter_list; 235 /* Lock to protect accesses to MAC and VLAN lists */ 236 spinlock_t mac_vlan_list_lock; 237 char misc_vector_name[IFNAMSIZ + 9]; 238 int num_active_queues; 239 int num_req_queues; 240 241 /* TX */ 242 struct i40e_ring *tx_rings; 243 u32 tx_timeout_count; 244 u32 tx_desc_count; 245 246 /* RX */ 247 struct i40e_ring *rx_rings; 248 u64 hw_csum_rx_error; 249 u32 rx_desc_count; 250 int num_msix_vectors; 251 int num_iwarp_msix; 252 int iwarp_base_vector; 253 u32 client_pending; 254 struct i40e_client_instance *cinst; 255 struct msix_entry *msix_entries; 256 257 u32 flags; 258 #define I40EVF_FLAG_RX_CSUM_ENABLED BIT(0) 259 #define I40EVF_FLAG_PF_COMMS_FAILED BIT(3) 260 #define I40EVF_FLAG_RESET_PENDING BIT(4) 261 #define I40EVF_FLAG_RESET_NEEDED BIT(5) 262 #define I40EVF_FLAG_WB_ON_ITR_CAPABLE BIT(6) 263 #define I40EVF_FLAG_ADDR_SET_BY_PF BIT(8) 264 #define I40EVF_FLAG_SERVICE_CLIENT_REQUESTED BIT(9) 265 #define I40EVF_FLAG_CLIENT_NEEDS_OPEN BIT(10) 266 #define I40EVF_FLAG_CLIENT_NEEDS_CLOSE BIT(11) 267 #define I40EVF_FLAG_CLIENT_NEEDS_L2_PARAMS BIT(12) 268 #define I40EVF_FLAG_PROMISC_ON BIT(13) 269 #define I40EVF_FLAG_ALLMULTI_ON BIT(14) 270 #define I40EVF_FLAG_LEGACY_RX BIT(15) 271 #define I40EVF_FLAG_REINIT_ITR_NEEDED BIT(16) 272 #define I40EVF_FLAG_QUEUES_DISABLED BIT(17) 273 /* duplicates for common code */ 274 #define I40E_FLAG_DCB_ENABLED 0 275 #define I40E_FLAG_RX_CSUM_ENABLED I40EVF_FLAG_RX_CSUM_ENABLED 276 #define I40E_FLAG_LEGACY_RX I40EVF_FLAG_LEGACY_RX 277 /* flags for admin queue service task */ 278 u32 aq_required; 279 #define I40EVF_FLAG_AQ_ENABLE_QUEUES BIT(0) 280 #define I40EVF_FLAG_AQ_DISABLE_QUEUES BIT(1) 281 #define I40EVF_FLAG_AQ_ADD_MAC_FILTER BIT(2) 282 #define I40EVF_FLAG_AQ_ADD_VLAN_FILTER BIT(3) 283 #define I40EVF_FLAG_AQ_DEL_MAC_FILTER BIT(4) 284 #define I40EVF_FLAG_AQ_DEL_VLAN_FILTER BIT(5) 285 #define I40EVF_FLAG_AQ_CONFIGURE_QUEUES BIT(6) 286 #define I40EVF_FLAG_AQ_MAP_VECTORS BIT(7) 287 #define I40EVF_FLAG_AQ_HANDLE_RESET BIT(8) 288 #define I40EVF_FLAG_AQ_CONFIGURE_RSS BIT(9) /* direct AQ config */ 289 #define I40EVF_FLAG_AQ_GET_CONFIG BIT(10) 290 /* Newer style, RSS done by the PF so we can ignore hardware vagaries. */ 291 #define I40EVF_FLAG_AQ_GET_HENA BIT(11) 292 #define I40EVF_FLAG_AQ_SET_HENA BIT(12) 293 #define I40EVF_FLAG_AQ_SET_RSS_KEY BIT(13) 294 #define I40EVF_FLAG_AQ_SET_RSS_LUT BIT(14) 295 #define I40EVF_FLAG_AQ_REQUEST_PROMISC BIT(15) 296 #define I40EVF_FLAG_AQ_RELEASE_PROMISC BIT(16) 297 #define I40EVF_FLAG_AQ_REQUEST_ALLMULTI BIT(17) 298 #define I40EVF_FLAG_AQ_RELEASE_ALLMULTI BIT(18) 299 #define I40EVF_FLAG_AQ_ENABLE_VLAN_STRIPPING BIT(19) 300 #define I40EVF_FLAG_AQ_DISABLE_VLAN_STRIPPING BIT(20) 301 #define I40EVF_FLAG_AQ_ENABLE_CHANNELS BIT(21) 302 #define I40EVF_FLAG_AQ_DISABLE_CHANNELS BIT(22) 303 #define I40EVF_FLAG_AQ_ADD_CLOUD_FILTER BIT(23) 304 #define I40EVF_FLAG_AQ_DEL_CLOUD_FILTER BIT(24) 305 306 /* OS defined structs */ 307 struct net_device *netdev; 308 struct pci_dev *pdev; 309 310 struct i40e_hw hw; /* defined in i40e_type.h */ 311 312 enum i40evf_state_t state; 313 unsigned long crit_section; 314 315 struct work_struct watchdog_task; 316 bool netdev_registered; 317 bool link_up; 318 enum virtchnl_link_speed link_speed; 319 enum virtchnl_ops current_op; 320 #define CLIENT_ALLOWED(_a) ((_a)->vf_res ? \ 321 (_a)->vf_res->vf_cap_flags & \ 322 VIRTCHNL_VF_OFFLOAD_IWARP : \ 323 0) 324 #define CLIENT_ENABLED(_a) ((_a)->cinst) 325 /* RSS by the PF should be preferred over RSS via other methods. */ 326 #define RSS_PF(_a) ((_a)->vf_res->vf_cap_flags & \ 327 VIRTCHNL_VF_OFFLOAD_RSS_PF) 328 #define RSS_AQ(_a) ((_a)->vf_res->vf_cap_flags & \ 329 VIRTCHNL_VF_OFFLOAD_RSS_AQ) 330 #define RSS_REG(_a) (!((_a)->vf_res->vf_cap_flags & \ 331 (VIRTCHNL_VF_OFFLOAD_RSS_AQ | \ 332 VIRTCHNL_VF_OFFLOAD_RSS_PF))) 333 #define VLAN_ALLOWED(_a) ((_a)->vf_res->vf_cap_flags & \ 334 VIRTCHNL_VF_OFFLOAD_VLAN) 335 struct virtchnl_vf_resource *vf_res; /* incl. all VSIs */ 336 struct virtchnl_vsi_resource *vsi_res; /* our LAN VSI */ 337 struct virtchnl_version_info pf_version; 338 #define PF_IS_V11(_a) (((_a)->pf_version.major == 1) && \ 339 ((_a)->pf_version.minor == 1)) 340 u16 msg_enable; 341 struct i40e_eth_stats current_stats; 342 struct i40e_vsi vsi; 343 u32 aq_wait_count; 344 /* RSS stuff */ 345 u64 hena; 346 u16 rss_key_size; 347 u16 rss_lut_size; 348 u8 *rss_key; 349 u8 *rss_lut; 350 /* ADQ related members */ 351 struct i40evf_channel_config ch_config; 352 u8 num_tc; 353 struct list_head cloud_filter_list; 354 /* lock to protest access to the cloud filter list */ 355 spinlock_t cloud_filter_list_lock; 356 u16 num_cloud_filters; 357 }; 358 359 360 /* Ethtool Private Flags */ 361 362 /* lan device */ 363 struct i40e_device { 364 struct list_head list; 365 struct i40evf_adapter *vf; 366 }; 367 368 /* needed by i40evf_ethtool.c */ 369 extern char i40evf_driver_name[]; 370 extern const char i40evf_driver_version[]; 371 372 int i40evf_up(struct i40evf_adapter *adapter); 373 void i40evf_down(struct i40evf_adapter *adapter); 374 int i40evf_process_config(struct i40evf_adapter *adapter); 375 void i40evf_schedule_reset(struct i40evf_adapter *adapter); 376 void i40evf_reset(struct i40evf_adapter *adapter); 377 void i40evf_set_ethtool_ops(struct net_device *netdev); 378 void i40evf_update_stats(struct i40evf_adapter *adapter); 379 void i40evf_reset_interrupt_capability(struct i40evf_adapter *adapter); 380 int i40evf_init_interrupt_scheme(struct i40evf_adapter *adapter); 381 void i40evf_irq_enable_queues(struct i40evf_adapter *adapter, u32 mask); 382 void i40evf_free_all_tx_resources(struct i40evf_adapter *adapter); 383 void i40evf_free_all_rx_resources(struct i40evf_adapter *adapter); 384 385 void i40e_napi_add_all(struct i40evf_adapter *adapter); 386 void i40e_napi_del_all(struct i40evf_adapter *adapter); 387 388 int i40evf_send_api_ver(struct i40evf_adapter *adapter); 389 int i40evf_verify_api_ver(struct i40evf_adapter *adapter); 390 int i40evf_send_vf_config_msg(struct i40evf_adapter *adapter); 391 int i40evf_get_vf_config(struct i40evf_adapter *adapter); 392 void i40evf_irq_enable(struct i40evf_adapter *adapter, bool flush); 393 void i40evf_configure_queues(struct i40evf_adapter *adapter); 394 void i40evf_deconfigure_queues(struct i40evf_adapter *adapter); 395 void i40evf_enable_queues(struct i40evf_adapter *adapter); 396 void i40evf_disable_queues(struct i40evf_adapter *adapter); 397 void i40evf_map_queues(struct i40evf_adapter *adapter); 398 int i40evf_request_queues(struct i40evf_adapter *adapter, int num); 399 void i40evf_add_ether_addrs(struct i40evf_adapter *adapter); 400 void i40evf_del_ether_addrs(struct i40evf_adapter *adapter); 401 void i40evf_add_vlans(struct i40evf_adapter *adapter); 402 void i40evf_del_vlans(struct i40evf_adapter *adapter); 403 void i40evf_set_promiscuous(struct i40evf_adapter *adapter, int flags); 404 void i40evf_request_stats(struct i40evf_adapter *adapter); 405 void i40evf_request_reset(struct i40evf_adapter *adapter); 406 void i40evf_get_hena(struct i40evf_adapter *adapter); 407 void i40evf_set_hena(struct i40evf_adapter *adapter); 408 void i40evf_set_rss_key(struct i40evf_adapter *adapter); 409 void i40evf_set_rss_lut(struct i40evf_adapter *adapter); 410 void i40evf_enable_vlan_stripping(struct i40evf_adapter *adapter); 411 void i40evf_disable_vlan_stripping(struct i40evf_adapter *adapter); 412 void i40evf_virtchnl_completion(struct i40evf_adapter *adapter, 413 enum virtchnl_ops v_opcode, 414 i40e_status v_retval, u8 *msg, u16 msglen); 415 int i40evf_config_rss(struct i40evf_adapter *adapter); 416 int i40evf_lan_add_device(struct i40evf_adapter *adapter); 417 int i40evf_lan_del_device(struct i40evf_adapter *adapter); 418 void i40evf_client_subtask(struct i40evf_adapter *adapter); 419 void i40evf_notify_client_message(struct i40e_vsi *vsi, u8 *msg, u16 len); 420 void i40evf_notify_client_l2_params(struct i40e_vsi *vsi); 421 void i40evf_notify_client_open(struct i40e_vsi *vsi); 422 void i40evf_notify_client_close(struct i40e_vsi *vsi, bool reset); 423 void i40evf_enable_channels(struct i40evf_adapter *adapter); 424 void i40evf_disable_channels(struct i40evf_adapter *adapter); 425 void i40evf_add_cloud_filter(struct i40evf_adapter *adapter); 426 void i40evf_del_cloud_filter(struct i40evf_adapter *adapter); 427 #endif /* _I40EVF_H_ */ 428
