1 /* 2 * This file is part of the Chelsio T4 Ethernet driver for Linux. 3 * 4 * Copyright (c) 2003-2014 Chelsio Communications, Inc. All rights reserved. 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenIB.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 35 #ifndef __CXGB4_H__ 36 #define __CXGB4_H__ 37 38 #include "t4_hw.h" 39 40 #include <linux/bitops.h> 41 #include <linux/cache.h> 42 #include <linux/interrupt.h> 43 #include <linux/list.h> 44 #include <linux/netdevice.h> 45 #include <linux/pci.h> 46 #include <linux/spinlock.h> 47 #include <linux/timer.h> 48 #include <linux/vmalloc.h> 49 #include <asm/io.h> 50 #include "cxgb4_uld.h" 51 52 #define T4FW_VERSION_MAJOR 0x01 53 #define T4FW_VERSION_MINOR 0x0B 54 #define T4FW_VERSION_MICRO 0x1B 55 #define T4FW_VERSION_BUILD 0x00 56 57 #define T5FW_VERSION_MAJOR 0x01 58 #define T5FW_VERSION_MINOR 0x0B 59 #define T5FW_VERSION_MICRO 0x1B 60 #define T5FW_VERSION_BUILD 0x00 61 62 #define CH_WARN(adap, fmt, ...) dev_warn(adap->pdev_dev, fmt, ## __VA_ARGS__) 63 64 enum { 65 MAX_NPORTS = 4, /* max # of ports */ 66 SERNUM_LEN = 24, /* Serial # length */ 67 EC_LEN = 16, /* E/C length */ 68 ID_LEN = 16, /* ID length */ 69 PN_LEN = 16, /* Part Number length */ 70 }; 71 72 enum { 73 MEM_EDC0, 74 MEM_EDC1, 75 MEM_MC, 76 MEM_MC0 = MEM_MC, 77 MEM_MC1 78 }; 79 80 enum { 81 MEMWIN0_APERTURE = 2048, 82 MEMWIN0_BASE = 0x1b800, 83 MEMWIN1_APERTURE = 32768, 84 MEMWIN1_BASE = 0x28000, 85 MEMWIN1_BASE_T5 = 0x52000, 86 MEMWIN2_APERTURE = 65536, 87 MEMWIN2_BASE = 0x30000, 88 MEMWIN2_APERTURE_T5 = 131072, 89 MEMWIN2_BASE_T5 = 0x60000, 90 }; 91 92 enum dev_master { 93 MASTER_CANT, 94 MASTER_MAY, 95 MASTER_MUST 96 }; 97 98 enum dev_state { 99 DEV_STATE_UNINIT, 100 DEV_STATE_INIT, 101 DEV_STATE_ERR 102 }; 103 104 enum { 105 PAUSE_RX = 1 << 0, 106 PAUSE_TX = 1 << 1, 107 PAUSE_AUTONEG = 1 << 2 108 }; 109 110 struct port_stats { 111 u64 tx_octets; /* total # of octets in good frames */ 112 u64 tx_frames; /* all good frames */ 113 u64 tx_bcast_frames; /* all broadcast frames */ 114 u64 tx_mcast_frames; /* all multicast frames */ 115 u64 tx_ucast_frames; /* all unicast frames */ 116 u64 tx_error_frames; /* all error frames */ 117 118 u64 tx_frames_64; /* # of Tx frames in a particular range */ 119 u64 tx_frames_65_127; 120 u64 tx_frames_128_255; 121 u64 tx_frames_256_511; 122 u64 tx_frames_512_1023; 123 u64 tx_frames_1024_1518; 124 u64 tx_frames_1519_max; 125 126 u64 tx_drop; /* # of dropped Tx frames */ 127 u64 tx_pause; /* # of transmitted pause frames */ 128 u64 tx_ppp0; /* # of transmitted PPP prio 0 frames */ 129 u64 tx_ppp1; /* # of transmitted PPP prio 1 frames */ 130 u64 tx_ppp2; /* # of transmitted PPP prio 2 frames */ 131 u64 tx_ppp3; /* # of transmitted PPP prio 3 frames */ 132 u64 tx_ppp4; /* # of transmitted PPP prio 4 frames */ 133 u64 tx_ppp5; /* # of transmitted PPP prio 5 frames */ 134 u64 tx_ppp6; /* # of transmitted PPP prio 6 frames */ 135 u64 tx_ppp7; /* # of transmitted PPP prio 7 frames */ 136 137 u64 rx_octets; /* total # of octets in good frames */ 138 u64 rx_frames; /* all good frames */ 139 u64 rx_bcast_frames; /* all broadcast frames */ 140 u64 rx_mcast_frames; /* all multicast frames */ 141 u64 rx_ucast_frames; /* all unicast frames */ 142 u64 rx_too_long; /* # of frames exceeding MTU */ 143 u64 rx_jabber; /* # of jabber frames */ 144 u64 rx_fcs_err; /* # of received frames with bad FCS */ 145 u64 rx_len_err; /* # of received frames with length error */ 146 u64 rx_symbol_err; /* symbol errors */ 147 u64 rx_runt; /* # of short frames */ 148 149 u64 rx_frames_64; /* # of Rx frames in a particular range */ 150 u64 rx_frames_65_127; 151 u64 rx_frames_128_255; 152 u64 rx_frames_256_511; 153 u64 rx_frames_512_1023; 154 u64 rx_frames_1024_1518; 155 u64 rx_frames_1519_max; 156 157 u64 rx_pause; /* # of received pause frames */ 158 u64 rx_ppp0; /* # of received PPP prio 0 frames */ 159 u64 rx_ppp1; /* # of received PPP prio 1 frames */ 160 u64 rx_ppp2; /* # of received PPP prio 2 frames */ 161 u64 rx_ppp3; /* # of received PPP prio 3 frames */ 162 u64 rx_ppp4; /* # of received PPP prio 4 frames */ 163 u64 rx_ppp5; /* # of received PPP prio 5 frames */ 164 u64 rx_ppp6; /* # of received PPP prio 6 frames */ 165 u64 rx_ppp7; /* # of received PPP prio 7 frames */ 166 167 u64 rx_ovflow0; /* drops due to buffer-group 0 overflows */ 168 u64 rx_ovflow1; /* drops due to buffer-group 1 overflows */ 169 u64 rx_ovflow2; /* drops due to buffer-group 2 overflows */ 170 u64 rx_ovflow3; /* drops due to buffer-group 3 overflows */ 171 u64 rx_trunc0; /* buffer-group 0 truncated packets */ 172 u64 rx_trunc1; /* buffer-group 1 truncated packets */ 173 u64 rx_trunc2; /* buffer-group 2 truncated packets */ 174 u64 rx_trunc3; /* buffer-group 3 truncated packets */ 175 }; 176 177 struct lb_port_stats { 178 u64 octets; 179 u64 frames; 180 u64 bcast_frames; 181 u64 mcast_frames; 182 u64 ucast_frames; 183 u64 error_frames; 184 185 u64 frames_64; 186 u64 frames_65_127; 187 u64 frames_128_255; 188 u64 frames_256_511; 189 u64 frames_512_1023; 190 u64 frames_1024_1518; 191 u64 frames_1519_max; 192 193 u64 drop; 194 195 u64 ovflow0; 196 u64 ovflow1; 197 u64 ovflow2; 198 u64 ovflow3; 199 u64 trunc0; 200 u64 trunc1; 201 u64 trunc2; 202 u64 trunc3; 203 }; 204 205 struct tp_tcp_stats { 206 u32 tcpOutRsts; 207 u64 tcpInSegs; 208 u64 tcpOutSegs; 209 u64 tcpRetransSegs; 210 }; 211 212 struct tp_err_stats { 213 u32 macInErrs[4]; 214 u32 hdrInErrs[4]; 215 u32 tcpInErrs[4]; 216 u32 tnlCongDrops[4]; 217 u32 ofldChanDrops[4]; 218 u32 tnlTxDrops[4]; 219 u32 ofldVlanDrops[4]; 220 u32 tcp6InErrs[4]; 221 u32 ofldNoNeigh; 222 u32 ofldCongDefer; 223 }; 224 225 struct tp_params { 226 unsigned int ntxchan; /* # of Tx channels */ 227 unsigned int tre; /* log2 of core clocks per TP tick */ 228 unsigned short tx_modq_map; /* TX modulation scheduler queue to */ 229 /* channel map */ 230 231 uint32_t dack_re; /* DACK timer resolution */ 232 unsigned short tx_modq[NCHAN]; /* channel to modulation queue map */ 233 234 u32 vlan_pri_map; /* cached TP_VLAN_PRI_MAP */ 235 u32 ingress_config; /* cached TP_INGRESS_CONFIG */ 236 237 /* TP_VLAN_PRI_MAP Compressed Filter Tuple field offsets. This is a 238 * subset of the set of fields which may be present in the Compressed 239 * Filter Tuple portion of filters and TCP TCB connections. The 240 * fields which are present are controlled by the TP_VLAN_PRI_MAP. 241 * Since a variable number of fields may or may not be present, their 242 * shifted field positions within the Compressed Filter Tuple may 243 * vary, or not even be present if the field isn't selected in 244 * TP_VLAN_PRI_MAP. Since some of these fields are needed in various 245 * places we store their offsets here, or a -1 if the field isn't 246 * present. 247 */ 248 int vlan_shift; 249 int vnic_shift; 250 int port_shift; 251 int protocol_shift; 252 }; 253 254 struct vpd_params { 255 unsigned int cclk; 256 u8 ec[EC_LEN + 1]; 257 u8 sn[SERNUM_LEN + 1]; 258 u8 id[ID_LEN + 1]; 259 u8 pn[PN_LEN + 1]; 260 }; 261 262 struct pci_params { 263 unsigned char speed; 264 unsigned char width; 265 }; 266 267 #define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision)) 268 #define CHELSIO_CHIP_FPGA 0x100 269 #define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf) 270 #define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf) 271 272 #define CHELSIO_T4 0x4 273 #define CHELSIO_T5 0x5 274 275 enum chip_type { 276 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1), 277 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2), 278 T4_FIRST_REV = T4_A1, 279 T4_LAST_REV = T4_A2, 280 281 T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0), 282 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1), 283 T5_FIRST_REV = T5_A0, 284 T5_LAST_REV = T5_A1, 285 }; 286 287 struct adapter_params { 288 struct tp_params tp; 289 struct vpd_params vpd; 290 struct pci_params pci; 291 292 unsigned int sf_size; /* serial flash size in bytes */ 293 unsigned int sf_nsec; /* # of flash sectors */ 294 unsigned int sf_fw_start; /* start of FW image in flash */ 295 296 unsigned int fw_vers; 297 unsigned int tp_vers; 298 u8 api_vers[7]; 299 300 unsigned short mtus[NMTUS]; 301 unsigned short a_wnd[NCCTRL_WIN]; 302 unsigned short b_wnd[NCCTRL_WIN]; 303 304 unsigned char nports; /* # of ethernet ports */ 305 unsigned char portvec; 306 enum chip_type chip; /* chip code */ 307 unsigned char offload; 308 309 unsigned char bypass; 310 311 unsigned int ofldq_wr_cred; 312 bool ulptx_memwrite_dsgl; /* use of T5 DSGL allowed */ 313 314 unsigned int max_ordird_qp; /* Max read depth per RDMA QP */ 315 unsigned int max_ird_adapter; /* Max read depth per adapter */ 316 }; 317 318 #include "t4fw_api.h" 319 320 #define FW_VERSION(chip) ( \ 321 FW_HDR_FW_VER_MAJOR_GET(chip##FW_VERSION_MAJOR) | \ 322 FW_HDR_FW_VER_MINOR_GET(chip##FW_VERSION_MINOR) | \ 323 FW_HDR_FW_VER_MICRO_GET(chip##FW_VERSION_MICRO) | \ 324 FW_HDR_FW_VER_BUILD_GET(chip##FW_VERSION_BUILD)) 325 #define FW_INTFVER(chip, intf) (FW_HDR_INTFVER_##intf) 326 327 struct fw_info { 328 u8 chip; 329 char *fs_name; 330 char *fw_mod_name; 331 struct fw_hdr fw_hdr; 332 }; 333 334 335 struct trace_params { 336 u32 data[TRACE_LEN / 4]; 337 u32 mask[TRACE_LEN / 4]; 338 unsigned short snap_len; 339 unsigned short min_len; 340 unsigned char skip_ofst; 341 unsigned char skip_len; 342 unsigned char invert; 343 unsigned char port; 344 }; 345 346 struct link_config { 347 unsigned short supported; /* link capabilities */ 348 unsigned short advertising; /* advertised capabilities */ 349 unsigned short requested_speed; /* speed user has requested */ 350 unsigned short speed; /* actual link speed */ 351 unsigned char requested_fc; /* flow control user has requested */ 352 unsigned char fc; /* actual link flow control */ 353 unsigned char autoneg; /* autonegotiating? */ 354 unsigned char link_ok; /* link up? */ 355 }; 356 357 #define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16) 358 359 enum { 360 MAX_ETH_QSETS = 32, /* # of Ethernet Tx/Rx queue sets */ 361 MAX_OFLD_QSETS = 16, /* # of offload Tx/Rx queue sets */ 362 MAX_CTRL_QUEUES = NCHAN, /* # of control Tx queues */ 363 MAX_RDMA_QUEUES = NCHAN, /* # of streaming RDMA Rx queues */ 364 MAX_RDMA_CIQS = NCHAN, /* # of RDMA concentrator IQs */ 365 MAX_ISCSI_QUEUES = NCHAN, /* # of streaming iSCSI Rx queues */ 366 }; 367 368 enum { 369 INGQ_EXTRAS = 2, /* firmware event queue and */ 370 /* forwarded interrupts */ 371 MAX_EGRQ = MAX_ETH_QSETS*2 + MAX_OFLD_QSETS*2 372 + MAX_CTRL_QUEUES + MAX_RDMA_QUEUES + MAX_ISCSI_QUEUES, 373 MAX_INGQ = MAX_ETH_QSETS + MAX_OFLD_QSETS + MAX_RDMA_QUEUES 374 + MAX_RDMA_CIQS + MAX_ISCSI_QUEUES + INGQ_EXTRAS, 375 }; 376 377 struct adapter; 378 struct sge_rspq; 379 380 #include "cxgb4_dcb.h" 381 382 struct port_info { 383 struct adapter *adapter; 384 u16 viid; 385 s16 xact_addr_filt; /* index of exact MAC address filter */ 386 u16 rss_size; /* size of VI's RSS table slice */ 387 s8 mdio_addr; 388 u8 port_type; 389 u8 mod_type; 390 u8 port_id; 391 u8 tx_chan; 392 u8 lport; /* associated offload logical port */ 393 u8 nqsets; /* # of qsets */ 394 u8 first_qset; /* index of first qset */ 395 u8 rss_mode; 396 struct link_config link_cfg; 397 u16 *rss; 398 #ifdef CONFIG_CHELSIO_T4_DCB 399 struct port_dcb_info dcb; /* Data Center Bridging support */ 400 #endif 401 }; 402 403 struct dentry; 404 struct work_struct; 405 406 enum { /* adapter flags */ 407 FULL_INIT_DONE = (1 << 0), 408 DEV_ENABLED = (1 << 1), 409 USING_MSI = (1 << 2), 410 USING_MSIX = (1 << 3), 411 FW_OK = (1 << 4), 412 RSS_TNLALLLOOKUP = (1 << 5), 413 USING_SOFT_PARAMS = (1 << 6), 414 MASTER_PF = (1 << 7), 415 FW_OFLD_CONN = (1 << 9), 416 }; 417 418 struct rx_sw_desc; 419 420 struct sge_fl { /* SGE free-buffer queue state */ 421 unsigned int avail; /* # of available Rx buffers */ 422 unsigned int pend_cred; /* new buffers since last FL DB ring */ 423 unsigned int cidx; /* consumer index */ 424 unsigned int pidx; /* producer index */ 425 unsigned long alloc_failed; /* # of times buffer allocation failed */ 426 unsigned long large_alloc_failed; 427 unsigned long starving; 428 /* RO fields */ 429 unsigned int cntxt_id; /* SGE context id for the free list */ 430 unsigned int size; /* capacity of free list */ 431 struct rx_sw_desc *sdesc; /* address of SW Rx descriptor ring */ 432 __be64 *desc; /* address of HW Rx descriptor ring */ 433 dma_addr_t addr; /* bus address of HW ring start */ 434 }; 435 436 /* A packet gather list */ 437 struct pkt_gl { 438 struct page_frag frags[MAX_SKB_FRAGS]; 439 void *va; /* virtual address of first byte */ 440 unsigned int nfrags; /* # of fragments */ 441 unsigned int tot_len; /* total length of fragments */ 442 }; 443 444 typedef int (*rspq_handler_t)(struct sge_rspq *q, const __be64 *rsp, 445 const struct pkt_gl *gl); 446 447 struct sge_rspq { /* state for an SGE response queue */ 448 struct napi_struct napi; 449 const __be64 *cur_desc; /* current descriptor in queue */ 450 unsigned int cidx; /* consumer index */ 451 u8 gen; /* current generation bit */ 452 u8 intr_params; /* interrupt holdoff parameters */ 453 u8 next_intr_params; /* holdoff params for next interrupt */ 454 u8 pktcnt_idx; /* interrupt packet threshold */ 455 u8 uld; /* ULD handling this queue */ 456 u8 idx; /* queue index within its group */ 457 int offset; /* offset into current Rx buffer */ 458 u16 cntxt_id; /* SGE context id for the response q */ 459 u16 abs_id; /* absolute SGE id for the response q */ 460 __be64 *desc; /* address of HW response ring */ 461 dma_addr_t phys_addr; /* physical address of the ring */ 462 unsigned int iqe_len; /* entry size */ 463 unsigned int size; /* capacity of response queue */ 464 struct adapter *adap; 465 struct net_device *netdev; /* associated net device */ 466 rspq_handler_t handler; 467 }; 468 469 struct sge_eth_stats { /* Ethernet queue statistics */ 470 unsigned long pkts; /* # of ethernet packets */ 471 unsigned long lro_pkts; /* # of LRO super packets */ 472 unsigned long lro_merged; /* # of wire packets merged by LRO */ 473 unsigned long rx_cso; /* # of Rx checksum offloads */ 474 unsigned long vlan_ex; /* # of Rx VLAN extractions */ 475 unsigned long rx_drops; /* # of packets dropped due to no mem */ 476 }; 477 478 struct sge_eth_rxq { /* SW Ethernet Rx queue */ 479 struct sge_rspq rspq; 480 struct sge_fl fl; 481 struct sge_eth_stats stats; 482 } ____cacheline_aligned_in_smp; 483 484 struct sge_ofld_stats { /* offload queue statistics */ 485 unsigned long pkts; /* # of packets */ 486 unsigned long imm; /* # of immediate-data packets */ 487 unsigned long an; /* # of asynchronous notifications */ 488 unsigned long nomem; /* # of responses deferred due to no mem */ 489 }; 490 491 struct sge_ofld_rxq { /* SW offload Rx queue */ 492 struct sge_rspq rspq; 493 struct sge_fl fl; 494 struct sge_ofld_stats stats; 495 } ____cacheline_aligned_in_smp; 496 497 struct tx_desc { 498 __be64 flit[8]; 499 }; 500 501 struct tx_sw_desc; 502 503 struct sge_txq { 504 unsigned int in_use; /* # of in-use Tx descriptors */ 505 unsigned int size; /* # of descriptors */ 506 unsigned int cidx; /* SW consumer index */ 507 unsigned int pidx; /* producer index */ 508 unsigned long stops; /* # of times q has been stopped */ 509 unsigned long restarts; /* # of queue restarts */ 510 unsigned int cntxt_id; /* SGE context id for the Tx q */ 511 struct tx_desc *desc; /* address of HW Tx descriptor ring */ 512 struct tx_sw_desc *sdesc; /* address of SW Tx descriptor ring */ 513 struct sge_qstat *stat; /* queue status entry */ 514 dma_addr_t phys_addr; /* physical address of the ring */ 515 spinlock_t db_lock; 516 int db_disabled; 517 unsigned short db_pidx; 518 unsigned short db_pidx_inc; 519 u64 udb; 520 }; 521 522 struct sge_eth_txq { /* state for an SGE Ethernet Tx queue */ 523 struct sge_txq q; 524 struct netdev_queue *txq; /* associated netdev TX queue */ 525 #ifdef CONFIG_CHELSIO_T4_DCB 526 u8 dcb_prio; /* DCB Priority bound to queue */ 527 #endif 528 unsigned long tso; /* # of TSO requests */ 529 unsigned long tx_cso; /* # of Tx checksum offloads */ 530 unsigned long vlan_ins; /* # of Tx VLAN insertions */ 531 unsigned long mapping_err; /* # of I/O MMU packet mapping errors */ 532 } ____cacheline_aligned_in_smp; 533 534 struct sge_ofld_txq { /* state for an SGE offload Tx queue */ 535 struct sge_txq q; 536 struct adapter *adap; 537 struct sk_buff_head sendq; /* list of backpressured packets */ 538 struct tasklet_struct qresume_tsk; /* restarts the queue */ 539 u8 full; /* the Tx ring is full */ 540 unsigned long mapping_err; /* # of I/O MMU packet mapping errors */ 541 } ____cacheline_aligned_in_smp; 542 543 struct sge_ctrl_txq { /* state for an SGE control Tx queue */ 544 struct sge_txq q; 545 struct adapter *adap; 546 struct sk_buff_head sendq; /* list of backpressured packets */ 547 struct tasklet_struct qresume_tsk; /* restarts the queue */ 548 u8 full; /* the Tx ring is full */ 549 } ____cacheline_aligned_in_smp; 550 551 struct sge { 552 struct sge_eth_txq ethtxq[MAX_ETH_QSETS]; 553 struct sge_ofld_txq ofldtxq[MAX_OFLD_QSETS]; 554 struct sge_ctrl_txq ctrlq[MAX_CTRL_QUEUES]; 555 556 struct sge_eth_rxq ethrxq[MAX_ETH_QSETS]; 557 struct sge_ofld_rxq ofldrxq[MAX_OFLD_QSETS]; 558 struct sge_ofld_rxq rdmarxq[MAX_RDMA_QUEUES]; 559 struct sge_ofld_rxq rdmaciq[MAX_RDMA_CIQS]; 560 struct sge_rspq fw_evtq ____cacheline_aligned_in_smp; 561 562 struct sge_rspq intrq ____cacheline_aligned_in_smp; 563 spinlock_t intrq_lock; 564 565 u16 max_ethqsets; /* # of available Ethernet queue sets */ 566 u16 ethqsets; /* # of active Ethernet queue sets */ 567 u16 ethtxq_rover; /* Tx queue to clean up next */ 568 u16 ofldqsets; /* # of active offload queue sets */ 569 u16 rdmaqs; /* # of available RDMA Rx queues */ 570 u16 rdmaciqs; /* # of available RDMA concentrator IQs */ 571 u16 ofld_rxq[MAX_OFLD_QSETS]; 572 u16 rdma_rxq[NCHAN]; 573 u16 rdma_ciq[NCHAN]; 574 u16 timer_val[SGE_NTIMERS]; 575 u8 counter_val[SGE_NCOUNTERS]; 576 u32 fl_pg_order; /* large page allocation size */ 577 u32 stat_len; /* length of status page at ring end */ 578 u32 pktshift; /* padding between CPL & packet data */ 579 u32 fl_align; /* response queue message alignment */ 580 u32 fl_starve_thres; /* Free List starvation threshold */ 581 582 /* State variables for detecting an SGE Ingress DMA hang */ 583 unsigned int idma_1s_thresh;/* SGE same State Counter 1s threshold */ 584 unsigned int idma_stalled[2];/* SGE synthesized stalled timers in HZ */ 585 unsigned int idma_state[2]; /* SGE IDMA Hang detect state */ 586 unsigned int idma_qid[2]; /* SGE IDMA Hung Ingress Queue ID */ 587 588 unsigned int egr_start; 589 unsigned int ingr_start; 590 void *egr_map[MAX_EGRQ]; /* qid->queue egress queue map */ 591 struct sge_rspq *ingr_map[MAX_INGQ]; /* qid->queue ingress queue map */ 592 DECLARE_BITMAP(starving_fl, MAX_EGRQ); 593 DECLARE_BITMAP(txq_maperr, MAX_EGRQ); 594 struct timer_list rx_timer; /* refills starving FLs */ 595 struct timer_list tx_timer; /* checks Tx queues */ 596 }; 597 598 #define for_each_ethrxq(sge, i) for (i = 0; i < (sge)->ethqsets; i++) 599 #define for_each_ofldrxq(sge, i) for (i = 0; i < (sge)->ofldqsets; i++) 600 #define for_each_rdmarxq(sge, i) for (i = 0; i < (sge)->rdmaqs; i++) 601 #define for_each_rdmaciq(sge, i) for (i = 0; i < (sge)->rdmaciqs; i++) 602 603 struct l2t_data; 604 605 #ifdef CONFIG_PCI_IOV 606 607 /* T4 supports SRIOV on PF0-3 and T5 on PF0-7. However, the Serial 608 * Configuration initialization for T5 only has SR-IOV functionality enabled 609 * on PF0-3 in order to simplify everything. 610 */ 611 #define NUM_OF_PF_WITH_SRIOV 4 612 613 #endif 614 615 struct adapter { 616 void __iomem *regs; 617 void __iomem *bar2; 618 u32 t4_bar0; 619 struct pci_dev *pdev; 620 struct device *pdev_dev; 621 unsigned int mbox; 622 unsigned int fn; 623 unsigned int flags; 624 enum chip_type chip; 625 626 int msg_enable; 627 628 struct adapter_params params; 629 struct cxgb4_virt_res vres; 630 unsigned int swintr; 631 632 unsigned int wol; 633 634 struct { 635 unsigned short vec; 636 char desc[IFNAMSIZ + 10]; 637 } msix_info[MAX_INGQ + 1]; 638 639 struct sge sge; 640 641 struct net_device *port[MAX_NPORTS]; 642 u8 chan_map[NCHAN]; /* channel -> port map */ 643 644 u32 filter_mode; 645 unsigned int l2t_start; 646 unsigned int l2t_end; 647 struct l2t_data *l2t; 648 void *uld_handle[CXGB4_ULD_MAX]; 649 struct list_head list_node; 650 struct list_head rcu_node; 651 652 struct tid_info tids; 653 void **tid_release_head; 654 spinlock_t tid_release_lock; 655 struct workqueue_struct *workq; 656 struct work_struct tid_release_task; 657 struct work_struct db_full_task; 658 struct work_struct db_drop_task; 659 bool tid_release_task_busy; 660 661 struct dentry *debugfs_root; 662 663 spinlock_t stats_lock; 664 spinlock_t win0_lock ____cacheline_aligned_in_smp; 665 }; 666 667 /* Defined bit width of user definable filter tuples 668 */ 669 #define ETHTYPE_BITWIDTH 16 670 #define FRAG_BITWIDTH 1 671 #define MACIDX_BITWIDTH 9 672 #define FCOE_BITWIDTH 1 673 #define IPORT_BITWIDTH 3 674 #define MATCHTYPE_BITWIDTH 3 675 #define PROTO_BITWIDTH 8 676 #define TOS_BITWIDTH 8 677 #define PF_BITWIDTH 8 678 #define VF_BITWIDTH 8 679 #define IVLAN_BITWIDTH 16 680 #define OVLAN_BITWIDTH 16 681 682 /* Filter matching rules. These consist of a set of ingress packet field 683 * (value, mask) tuples. The associated ingress packet field matches the 684 * tuple when ((field & mask) == value). (Thus a wildcard "don't care" field 685 * rule can be constructed by specifying a tuple of (0, 0).) A filter rule 686 * matches an ingress packet when all of the individual individual field 687 * matching rules are true. 688 * 689 * Partial field masks are always valid, however, while it may be easy to 690 * understand their meanings for some fields (e.g. IP address to match a 691 * subnet), for others making sensible partial masks is less intuitive (e.g. 692 * MPS match type) ... 693 * 694 * Most of the following data structures are modeled on T4 capabilities. 695 * Drivers for earlier chips use the subsets which make sense for those chips. 696 * We really need to come up with a hardware-independent mechanism to 697 * represent hardware filter capabilities ... 698 */ 699 struct ch_filter_tuple { 700 /* Compressed header matching field rules. The TP_VLAN_PRI_MAP 701 * register selects which of these fields will participate in the 702 * filter match rules -- up to a maximum of 36 bits. Because 703 * TP_VLAN_PRI_MAP is a global register, all filters must use the same 704 * set of fields. 705 */ 706 uint32_t ethtype:ETHTYPE_BITWIDTH; /* Ethernet type */ 707 uint32_t frag:FRAG_BITWIDTH; /* IP fragmentation header */ 708 uint32_t ivlan_vld:1; /* inner VLAN valid */ 709 uint32_t ovlan_vld:1; /* outer VLAN valid */ 710 uint32_t pfvf_vld:1; /* PF/VF valid */ 711 uint32_t macidx:MACIDX_BITWIDTH; /* exact match MAC index */ 712 uint32_t fcoe:FCOE_BITWIDTH; /* FCoE packet */ 713 uint32_t iport:IPORT_BITWIDTH; /* ingress port */ 714 uint32_t matchtype:MATCHTYPE_BITWIDTH; /* MPS match type */ 715 uint32_t proto:PROTO_BITWIDTH; /* protocol type */ 716 uint32_t tos:TOS_BITWIDTH; /* TOS/Traffic Type */ 717 uint32_t pf:PF_BITWIDTH; /* PCI-E PF ID */ 718 uint32_t vf:VF_BITWIDTH; /* PCI-E VF ID */ 719 uint32_t ivlan:IVLAN_BITWIDTH; /* inner VLAN */ 720 uint32_t ovlan:OVLAN_BITWIDTH; /* outer VLAN */ 721 722 /* Uncompressed header matching field rules. These are always 723 * available for field rules. 724 */ 725 uint8_t lip[16]; /* local IP address (IPv4 in [3:0]) */ 726 uint8_t fip[16]; /* foreign IP address (IPv4 in [3:0]) */ 727 uint16_t lport; /* local port */ 728 uint16_t fport; /* foreign port */ 729 }; 730 731 /* A filter ioctl command. 732 */ 733 struct ch_filter_specification { 734 /* Administrative fields for filter. 735 */ 736 uint32_t hitcnts:1; /* count filter hits in TCB */ 737 uint32_t prio:1; /* filter has priority over active/server */ 738 739 /* Fundamental filter typing. This is the one element of filter 740 * matching that doesn't exist as a (value, mask) tuple. 741 */ 742 uint32_t type:1; /* 0 => IPv4, 1 => IPv6 */ 743 744 /* Packet dispatch information. Ingress packets which match the 745 * filter rules will be dropped, passed to the host or switched back 746 * out as egress packets. 747 */ 748 uint32_t action:2; /* drop, pass, switch */ 749 750 uint32_t rpttid:1; /* report TID in RSS hash field */ 751 752 uint32_t dirsteer:1; /* 0 => RSS, 1 => steer to iq */ 753 uint32_t iq:10; /* ingress queue */ 754 755 uint32_t maskhash:1; /* dirsteer=0: store RSS hash in TCB */ 756 uint32_t dirsteerhash:1;/* dirsteer=1: 0 => TCB contains RSS hash */ 757 /* 1 => TCB contains IQ ID */ 758 759 /* Switch proxy/rewrite fields. An ingress packet which matches a 760 * filter with "switch" set will be looped back out as an egress 761 * packet -- potentially with some Ethernet header rewriting. 762 */ 763 uint32_t eport:2; /* egress port to switch packet out */ 764 uint32_t newdmac:1; /* rewrite destination MAC address */ 765 uint32_t newsmac:1; /* rewrite source MAC address */ 766 uint32_t newvlan:2; /* rewrite VLAN Tag */ 767 uint8_t dmac[ETH_ALEN]; /* new destination MAC address */ 768 uint8_t smac[ETH_ALEN]; /* new source MAC address */ 769 uint16_t vlan; /* VLAN Tag to insert */ 770 771 /* Filter rule value/mask pairs. 772 */ 773 struct ch_filter_tuple val; 774 struct ch_filter_tuple mask; 775 }; 776 777 enum { 778 FILTER_PASS = 0, /* default */ 779 FILTER_DROP, 780 FILTER_SWITCH 781 }; 782 783 enum { 784 VLAN_NOCHANGE = 0, /* default */ 785 VLAN_REMOVE, 786 VLAN_INSERT, 787 VLAN_REWRITE 788 }; 789 790 static inline int is_t5(enum chip_type chip) 791 { 792 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T5; 793 } 794 795 static inline int is_t4(enum chip_type chip) 796 { 797 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4; 798 } 799 800 static inline u32 t4_read_reg(struct adapter *adap, u32 reg_addr) 801 { 802 return readl(adap->regs + reg_addr); 803 } 804 805 static inline void t4_write_reg(struct adapter *adap, u32 reg_addr, u32 val) 806 { 807 writel(val, adap->regs + reg_addr); 808 } 809 810 #ifndef readq 811 static inline u64 readq(const volatile void __iomem *addr) 812 { 813 return readl(addr) + ((u64)readl(addr + 4) << 32); 814 } 815 816 static inline void writeq(u64 val, volatile void __iomem *addr) 817 { 818 writel(val, addr); 819 writel(val >> 32, addr + 4); 820 } 821 #endif 822 823 static inline u64 t4_read_reg64(struct adapter *adap, u32 reg_addr) 824 { 825 return readq(adap->regs + reg_addr); 826 } 827 828 static inline void t4_write_reg64(struct adapter *adap, u32 reg_addr, u64 val) 829 { 830 writeq(val, adap->regs + reg_addr); 831 } 832 833 /** 834 * netdev2pinfo - return the port_info structure associated with a net_device 835 * @dev: the netdev 836 * 837 * Return the struct port_info associated with a net_device 838 */ 839 static inline struct port_info *netdev2pinfo(const struct net_device *dev) 840 { 841 return netdev_priv(dev); 842 } 843 844 /** 845 * adap2pinfo - return the port_info of a port 846 * @adap: the adapter 847 * @idx: the port index 848 * 849 * Return the port_info structure for the port of the given index. 850 */ 851 static inline struct port_info *adap2pinfo(struct adapter *adap, int idx) 852 { 853 return netdev_priv(adap->port[idx]); 854 } 855 856 /** 857 * netdev2adap - return the adapter structure associated with a net_device 858 * @dev: the netdev 859 * 860 * Return the struct adapter associated with a net_device 861 */ 862 static inline struct adapter *netdev2adap(const struct net_device *dev) 863 { 864 return netdev2pinfo(dev)->adapter; 865 } 866 867 void t4_os_portmod_changed(const struct adapter *adap, int port_id); 868 void t4_os_link_changed(struct adapter *adap, int port_id, int link_stat); 869 870 void *t4_alloc_mem(size_t size); 871 872 void t4_free_sge_resources(struct adapter *adap); 873 void t4_free_ofld_rxqs(struct adapter *adap, int n, struct sge_ofld_rxq *q); 874 irq_handler_t t4_intr_handler(struct adapter *adap); 875 netdev_tx_t t4_eth_xmit(struct sk_buff *skb, struct net_device *dev); 876 int t4_ethrx_handler(struct sge_rspq *q, const __be64 *rsp, 877 const struct pkt_gl *gl); 878 int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb); 879 int t4_ofld_send(struct adapter *adap, struct sk_buff *skb); 880 int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq, 881 struct net_device *dev, int intr_idx, 882 struct sge_fl *fl, rspq_handler_t hnd); 883 int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq, 884 struct net_device *dev, struct netdev_queue *netdevq, 885 unsigned int iqid); 886 int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq, 887 struct net_device *dev, unsigned int iqid, 888 unsigned int cmplqid); 889 int t4_sge_alloc_ofld_txq(struct adapter *adap, struct sge_ofld_txq *txq, 890 struct net_device *dev, unsigned int iqid); 891 irqreturn_t t4_sge_intr_msix(int irq, void *cookie); 892 int t4_sge_init(struct adapter *adap); 893 void t4_sge_start(struct adapter *adap); 894 void t4_sge_stop(struct adapter *adap); 895 extern int dbfifo_int_thresh; 896 897 #define for_each_port(adapter, iter) \ 898 for (iter = 0; iter < (adapter)->params.nports; ++iter) 899 900 static inline int is_bypass(struct adapter *adap) 901 { 902 return adap->params.bypass; 903 } 904 905 static inline int is_bypass_device(int device) 906 { 907 /* this should be set based upon device capabilities */ 908 switch (device) { 909 case 0x440b: 910 case 0x440c: 911 return 1; 912 default: 913 return 0; 914 } 915 } 916 917 static inline unsigned int core_ticks_per_usec(const struct adapter *adap) 918 { 919 return adap->params.vpd.cclk / 1000; 920 } 921 922 static inline unsigned int us_to_core_ticks(const struct adapter *adap, 923 unsigned int us) 924 { 925 return (us * adap->params.vpd.cclk) / 1000; 926 } 927 928 static inline unsigned int core_ticks_to_us(const struct adapter *adapter, 929 unsigned int ticks) 930 { 931 /* add Core Clock / 2 to round ticks to nearest uS */ 932 return ((ticks * 1000 + adapter->params.vpd.cclk/2) / 933 adapter->params.vpd.cclk); 934 } 935 936 void t4_set_reg_field(struct adapter *adap, unsigned int addr, u32 mask, 937 u32 val); 938 939 int t4_wr_mbox_meat(struct adapter *adap, int mbox, const void *cmd, int size, 940 void *rpl, bool sleep_ok); 941 942 static inline int t4_wr_mbox(struct adapter *adap, int mbox, const void *cmd, 943 int size, void *rpl) 944 { 945 return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, true); 946 } 947 948 static inline int t4_wr_mbox_ns(struct adapter *adap, int mbox, const void *cmd, 949 int size, void *rpl) 950 { 951 return t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, false); 952 } 953 954 void t4_write_indirect(struct adapter *adap, unsigned int addr_reg, 955 unsigned int data_reg, const u32 *vals, 956 unsigned int nregs, unsigned int start_idx); 957 void t4_read_indirect(struct adapter *adap, unsigned int addr_reg, 958 unsigned int data_reg, u32 *vals, unsigned int nregs, 959 unsigned int start_idx); 960 void t4_hw_pci_read_cfg4(struct adapter *adapter, int reg, u32 *val); 961 962 struct fw_filter_wr; 963 964 void t4_intr_enable(struct adapter *adapter); 965 void t4_intr_disable(struct adapter *adapter); 966 int t4_slow_intr_handler(struct adapter *adapter); 967 968 int t4_wait_dev_ready(struct adapter *adap); 969 int t4_link_start(struct adapter *adap, unsigned int mbox, unsigned int port, 970 struct link_config *lc); 971 int t4_restart_aneg(struct adapter *adap, unsigned int mbox, unsigned int port); 972 973 #define T4_MEMORY_WRITE 0 974 #define T4_MEMORY_READ 1 975 int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr, u32 len, 976 __be32 *buf, int dir); 977 static inline int t4_memory_write(struct adapter *adap, int mtype, u32 addr, 978 u32 len, __be32 *buf) 979 { 980 return t4_memory_rw(adap, 0, mtype, addr, len, buf, 0); 981 } 982 983 int t4_seeprom_wp(struct adapter *adapter, bool enable); 984 int get_vpd_params(struct adapter *adapter, struct vpd_params *p); 985 int t4_load_fw(struct adapter *adapter, const u8 *fw_data, unsigned int size); 986 unsigned int t4_flash_cfg_addr(struct adapter *adapter); 987 int t4_get_fw_version(struct adapter *adapter, u32 *vers); 988 int t4_get_tp_version(struct adapter *adapter, u32 *vers); 989 int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info, 990 const u8 *fw_data, unsigned int fw_size, 991 struct fw_hdr *card_fw, enum dev_state state, int *reset); 992 int t4_prep_adapter(struct adapter *adapter); 993 int t4_init_tp_params(struct adapter *adap); 994 int t4_filter_field_shift(const struct adapter *adap, int filter_sel); 995 int t4_port_init(struct adapter *adap, int mbox, int pf, int vf); 996 void t4_fatal_err(struct adapter *adapter); 997 int t4_config_rss_range(struct adapter *adapter, int mbox, unsigned int viid, 998 int start, int n, const u16 *rspq, unsigned int nrspq); 999 int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode, 1000 unsigned int flags); 1001 int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, 1002 u64 *parity); 1003 int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, 1004 u64 *parity); 1005 const char *t4_get_port_type_description(enum fw_port_type port_type); 1006 void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p); 1007 void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log); 1008 void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr, 1009 unsigned int mask, unsigned int val); 1010 void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4, 1011 struct tp_tcp_stats *v6); 1012 void t4_load_mtus(struct adapter *adap, const unsigned short *mtus, 1013 const unsigned short *alpha, const unsigned short *beta); 1014 1015 void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid); 1016 1017 void t4_wol_magic_enable(struct adapter *adap, unsigned int port, 1018 const u8 *addr); 1019 int t4_wol_pat_enable(struct adapter *adap, unsigned int port, unsigned int map, 1020 u64 mask0, u64 mask1, unsigned int crc, bool enable); 1021 1022 int t4_fw_hello(struct adapter *adap, unsigned int mbox, unsigned int evt_mbox, 1023 enum dev_master master, enum dev_state *state); 1024 int t4_fw_bye(struct adapter *adap, unsigned int mbox); 1025 int t4_early_init(struct adapter *adap, unsigned int mbox); 1026 int t4_fw_reset(struct adapter *adap, unsigned int mbox, int reset); 1027 int t4_fixup_host_params(struct adapter *adap, unsigned int page_size, 1028 unsigned int cache_line_size); 1029 int t4_fw_initialize(struct adapter *adap, unsigned int mbox); 1030 int t4_query_params(struct adapter *adap, unsigned int mbox, unsigned int pf, 1031 unsigned int vf, unsigned int nparams, const u32 *params, 1032 u32 *val); 1033 int t4_set_params(struct adapter *adap, unsigned int mbox, unsigned int pf, 1034 unsigned int vf, unsigned int nparams, const u32 *params, 1035 const u32 *val); 1036 int t4_set_params_nosleep(struct adapter *adap, unsigned int mbox, 1037 unsigned int pf, unsigned int vf, 1038 unsigned int nparams, const u32 *params, 1039 const u32 *val); 1040 int t4_cfg_pfvf(struct adapter *adap, unsigned int mbox, unsigned int pf, 1041 unsigned int vf, unsigned int txq, unsigned int txq_eth_ctrl, 1042 unsigned int rxqi, unsigned int rxq, unsigned int tc, 1043 unsigned int vi, unsigned int cmask, unsigned int pmask, 1044 unsigned int nexact, unsigned int rcaps, unsigned int wxcaps); 1045 int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port, 1046 unsigned int pf, unsigned int vf, unsigned int nmac, u8 *mac, 1047 unsigned int *rss_size); 1048 int t4_set_rxmode(struct adapter *adap, unsigned int mbox, unsigned int viid, 1049 int mtu, int promisc, int all_multi, int bcast, int vlanex, 1050 bool sleep_ok); 1051 int t4_alloc_mac_filt(struct adapter *adap, unsigned int mbox, 1052 unsigned int viid, bool free, unsigned int naddr, 1053 const u8 **addr, u16 *idx, u64 *hash, bool sleep_ok); 1054 int t4_change_mac(struct adapter *adap, unsigned int mbox, unsigned int viid, 1055 int idx, const u8 *addr, bool persist, bool add_smt); 1056 int t4_set_addr_hash(struct adapter *adap, unsigned int mbox, unsigned int viid, 1057 bool ucast, u64 vec, bool sleep_ok); 1058 int t4_enable_vi_params(struct adapter *adap, unsigned int mbox, 1059 unsigned int viid, bool rx_en, bool tx_en, bool dcb_en); 1060 int t4_enable_vi(struct adapter *adap, unsigned int mbox, unsigned int viid, 1061 bool rx_en, bool tx_en); 1062 int t4_identify_port(struct adapter *adap, unsigned int mbox, unsigned int viid, 1063 unsigned int nblinks); 1064 int t4_mdio_rd(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, 1065 unsigned int mmd, unsigned int reg, u16 *valp); 1066 int t4_mdio_wr(struct adapter *adap, unsigned int mbox, unsigned int phy_addr, 1067 unsigned int mmd, unsigned int reg, u16 val); 1068 int t4_iq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, 1069 unsigned int vf, unsigned int iqtype, unsigned int iqid, 1070 unsigned int fl0id, unsigned int fl1id); 1071 int t4_eth_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, 1072 unsigned int vf, unsigned int eqid); 1073 int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, 1074 unsigned int vf, unsigned int eqid); 1075 int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, 1076 unsigned int vf, unsigned int eqid); 1077 int t4_handle_fw_rpl(struct adapter *adap, const __be64 *rpl); 1078 void t4_db_full(struct adapter *adapter); 1079 void t4_db_dropped(struct adapter *adapter); 1080 int t4_fwaddrspace_write(struct adapter *adap, unsigned int mbox, 1081 u32 addr, u32 val); 1082 void t4_sge_decode_idma_state(struct adapter *adapter, int state); 1083 #endif /* __CXGB4_H__ */ 1084