1 /* 2 * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation. 3 * All rights reserved. 4 * Copyright (c) 2003, 2004, 2005, 2006 PathScale, 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 _QIB_COMMON_H 36 #define _QIB_COMMON_H 37 38 /* 39 * This file contains defines, structures, etc. that are used 40 * to communicate between kernel and user code. 41 */ 42 43 /* This is the IEEE-assigned OUI for QLogic Inc. QLogic_IB */ 44 #define QIB_SRC_OUI_1 0x00 45 #define QIB_SRC_OUI_2 0x11 46 #define QIB_SRC_OUI_3 0x75 47 48 /* version of protocol header (known to chip also). In the long run, 49 * we should be able to generate and accept a range of version numbers; 50 * for now we only accept one, and it's compiled in. 51 */ 52 #define IPS_PROTO_VERSION 2 53 54 /* 55 * These are compile time constants that you may want to enable or disable 56 * if you are trying to debug problems with code or performance. 57 * QIB_VERBOSE_TRACING define as 1 if you want additional tracing in 58 * fastpath code 59 * QIB_TRACE_REGWRITES define as 1 if you want register writes to be 60 * traced in fastpath code 61 * _QIB_TRACING define as 0 if you want to remove all tracing in a 62 * compilation unit 63 */ 64 65 /* 66 * The value in the BTH QP field that QLogic_IB uses to differentiate 67 * an qlogic_ib protocol IB packet vs standard IB transport 68 * This it needs to be even (0x656b78), because the LSB is sometimes 69 * used for the MSB of context. The change may cause a problem 70 * interoperating with older software. 71 */ 72 #define QIB_KD_QP 0x656b78 73 74 /* 75 * These are the status bits readable (in ascii form, 64bit value) 76 * from the "status" sysfs file. For binary compatibility, values 77 * must remain as is; removed states can be reused for different 78 * purposes. 79 */ 80 #define QIB_STATUS_INITTED 0x1 /* basic initialization done */ 81 /* Chip has been found and initted */ 82 #define QIB_STATUS_CHIP_PRESENT 0x20 83 /* IB link is at ACTIVE, usable for data traffic */ 84 #define QIB_STATUS_IB_READY 0x40 85 /* link is configured, LID, MTU, etc. have been set */ 86 #define QIB_STATUS_IB_CONF 0x80 87 /* A Fatal hardware error has occurred. */ 88 #define QIB_STATUS_HWERROR 0x200 89 90 /* 91 * The list of usermode accessible registers. Also see Reg_* later in file. 92 */ 93 enum qib_ureg { 94 /* (RO) DMA RcvHdr to be used next. */ 95 ur_rcvhdrtail = 0, 96 /* (RW) RcvHdr entry to be processed next by host. */ 97 ur_rcvhdrhead = 1, 98 /* (RO) Index of next Eager index to use. */ 99 ur_rcvegrindextail = 2, 100 /* (RW) Eager TID to be processed next */ 101 ur_rcvegrindexhead = 3, 102 /* For internal use only; max register number. */ 103 _QIB_UregMax 104 }; 105 106 /* bit values for spi_runtime_flags */ 107 #define QIB_RUNTIME_PCIE 0x0002 108 #define QIB_RUNTIME_FORCE_WC_ORDER 0x0004 109 #define QIB_RUNTIME_RCVHDR_COPY 0x0008 110 #define QIB_RUNTIME_MASTER 0x0010 111 #define QIB_RUNTIME_RCHK 0x0020 112 #define QIB_RUNTIME_NODMA_RTAIL 0x0080 113 #define QIB_RUNTIME_SPECIAL_TRIGGER 0x0100 114 #define QIB_RUNTIME_SDMA 0x0200 115 #define QIB_RUNTIME_FORCE_PIOAVAIL 0x0400 116 #define QIB_RUNTIME_PIO_REGSWAPPED 0x0800 117 #define QIB_RUNTIME_CTXT_MSB_IN_QP 0x1000 118 #define QIB_RUNTIME_CTXT_REDIRECT 0x2000 119 #define QIB_RUNTIME_HDRSUPP 0x4000 120 121 /* 122 * This structure is returned by qib_userinit() immediately after 123 * open to get implementation-specific info, and info specific to this 124 * instance. 125 * 126 * This struct must have explict pad fields where type sizes 127 * may result in different alignments between 32 and 64 bit 128 * programs, since the 64 bit * bit kernel requires the user code 129 * to have matching offsets 130 */ 131 struct qib_base_info { 132 /* version of hardware, for feature checking. */ 133 __u32 spi_hw_version; 134 /* version of software, for feature checking. */ 135 __u32 spi_sw_version; 136 /* QLogic_IB context assigned, goes into sent packets */ 137 __u16 spi_ctxt; 138 __u16 spi_subctxt; 139 /* 140 * IB MTU, packets IB data must be less than this. 141 * The MTU is in bytes, and will be a multiple of 4 bytes. 142 */ 143 __u32 spi_mtu; 144 /* 145 * Size of a PIO buffer. Any given packet's total size must be less 146 * than this (in words). Included is the starting control word, so 147 * if 513 is returned, then total pkt size is 512 words or less. 148 */ 149 __u32 spi_piosize; 150 /* size of the TID cache in qlogic_ib, in entries */ 151 __u32 spi_tidcnt; 152 /* size of the TID Eager list in qlogic_ib, in entries */ 153 __u32 spi_tidegrcnt; 154 /* size of a single receive header queue entry in words. */ 155 __u32 spi_rcvhdrent_size; 156 /* 157 * Count of receive header queue entries allocated. 158 * This may be less than the spu_rcvhdrcnt passed in!. 159 */ 160 __u32 spi_rcvhdr_cnt; 161 162 /* per-chip and other runtime features bitmap (QIB_RUNTIME_*) */ 163 __u32 spi_runtime_flags; 164 165 /* address where hardware receive header queue is mapped */ 166 __u64 spi_rcvhdr_base; 167 168 /* user program. */ 169 170 /* base address of eager TID receive buffers used by hardware. */ 171 __u64 spi_rcv_egrbufs; 172 173 /* Allocated by initialization code, not by protocol. */ 174 175 /* 176 * Size of each TID buffer in host memory, starting at 177 * spi_rcv_egrbufs. The buffers are virtually contiguous. 178 */ 179 __u32 spi_rcv_egrbufsize; 180 /* 181 * The special QP (queue pair) value that identifies an qlogic_ib 182 * protocol packet from standard IB packets. More, probably much 183 * more, to be added. 184 */ 185 __u32 spi_qpair; 186 187 /* 188 * User register base for init code, not to be used directly by 189 * protocol or applications. Always points to chip registers, 190 * for normal or shared context. 191 */ 192 __u64 spi_uregbase; 193 /* 194 * Maximum buffer size in bytes that can be used in a single TID 195 * entry (assuming the buffer is aligned to this boundary). This is 196 * the minimum of what the hardware and software support Guaranteed 197 * to be a power of 2. 198 */ 199 __u32 spi_tid_maxsize; 200 /* 201 * alignment of each pio send buffer (byte count 202 * to add to spi_piobufbase to get to second buffer) 203 */ 204 __u32 spi_pioalign; 205 /* 206 * The index of the first pio buffer available to this process; 207 * needed to do lookup in spi_pioavailaddr; not added to 208 * spi_piobufbase. 209 */ 210 __u32 spi_pioindex; 211 /* number of buffers mapped for this process */ 212 __u32 spi_piocnt; 213 214 /* 215 * Base address of writeonly pio buffers for this process. 216 * Each buffer has spi_piosize words, and is aligned on spi_pioalign 217 * boundaries. spi_piocnt buffers are mapped from this address 218 */ 219 __u64 spi_piobufbase; 220 221 /* 222 * Base address of readonly memory copy of the pioavail registers. 223 * There are 2 bits for each buffer. 224 */ 225 __u64 spi_pioavailaddr; 226 227 /* 228 * Address where driver updates a copy of the interface and driver 229 * status (QIB_STATUS_*) as a 64 bit value. It's followed by a 230 * link status qword (formerly combined with driver status), then a 231 * string indicating hardware error, if there was one. 232 */ 233 __u64 spi_status; 234 235 /* number of chip ctxts available to user processes */ 236 __u32 spi_nctxts; 237 __u16 spi_unit; /* unit number of chip we are using */ 238 __u16 spi_port; /* IB port number we are using */ 239 /* num bufs in each contiguous set */ 240 __u32 spi_rcv_egrperchunk; 241 /* size in bytes of each contiguous set */ 242 __u32 spi_rcv_egrchunksize; 243 /* total size of mmap to cover full rcvegrbuffers */ 244 __u32 spi_rcv_egrbuftotlen; 245 __u32 spi_rhf_offset; /* dword offset in hdrqent for rcvhdr flags */ 246 /* address of readonly memory copy of the rcvhdrq tail register. */ 247 __u64 spi_rcvhdr_tailaddr; 248 249 /* 250 * shared memory pages for subctxts if ctxt is shared; these cover 251 * all the processes in the group sharing a single context. 252 * all have enough space for the num_subcontexts value on this job. 253 */ 254 __u64 spi_subctxt_uregbase; 255 __u64 spi_subctxt_rcvegrbuf; 256 __u64 spi_subctxt_rcvhdr_base; 257 258 /* shared memory page for send buffer disarm status */ 259 __u64 spi_sendbuf_status; 260 } __aligned(8); 261 262 /* 263 * This version number is given to the driver by the user code during 264 * initialization in the spu_userversion field of qib_user_info, so 265 * the driver can check for compatibility with user code. 266 * 267 * The major version changes when data structures 268 * change in an incompatible way. The driver must be the same or higher 269 * for initialization to succeed. In some cases, a higher version 270 * driver will not interoperate with older software, and initialization 271 * will return an error. 272 */ 273 #define QIB_USER_SWMAJOR 1 274 275 /* 276 * Minor version differences are always compatible 277 * a within a major version, however if user software is larger 278 * than driver software, some new features and/or structure fields 279 * may not be implemented; the user code must deal with this if it 280 * cares, or it must abort after initialization reports the difference. 281 */ 282 #define QIB_USER_SWMINOR 13 283 284 #define QIB_USER_SWVERSION ((QIB_USER_SWMAJOR << 16) | QIB_USER_SWMINOR) 285 286 #ifndef QIB_KERN_TYPE 287 #define QIB_KERN_TYPE 0 288 #endif 289 290 /* 291 * Similarly, this is the kernel version going back to the user. It's 292 * slightly different, in that we want to tell if the driver was built as 293 * part of a QLogic release, or from the driver from openfabrics.org, 294 * kernel.org, or a standard distribution, for support reasons. 295 * The high bit is 0 for non-QLogic and 1 for QLogic-built/supplied. 296 * 297 * It's returned by the driver to the user code during initialization in the 298 * spi_sw_version field of qib_base_info, so the user code can in turn 299 * check for compatibility with the kernel. 300 */ 301 #define QIB_KERN_SWVERSION ((QIB_KERN_TYPE << 31) | QIB_USER_SWVERSION) 302 303 /* 304 * Define the driver version number. This is something that refers only 305 * to the driver itself, not the software interfaces it supports. 306 */ 307 #define QIB_DRIVER_VERSION_BASE "1.11" 308 309 /* create the final driver version string */ 310 #ifdef QIB_IDSTR 311 #define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE " " QIB_IDSTR 312 #else 313 #define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE 314 #endif 315 316 /* 317 * If the unit is specified via open, HCA choice is fixed. If port is 318 * specified, it's also fixed. Otherwise we try to spread contexts 319 * across ports and HCAs, using different algorithims. WITHIN is 320 * the old default, prior to this mechanism. 321 */ 322 #define QIB_PORT_ALG_ACROSS 0 /* round robin contexts across HCAs, then 323 * ports; this is the default */ 324 #define QIB_PORT_ALG_WITHIN 1 /* use all contexts on an HCA (round robin 325 * active ports within), then next HCA */ 326 #define QIB_PORT_ALG_COUNT 2 /* number of algorithm choices */ 327 328 /* 329 * This structure is passed to qib_userinit() to tell the driver where 330 * user code buffers are, sizes, etc. The offsets and sizes of the 331 * fields must remain unchanged, for binary compatibility. It can 332 * be extended, if userversion is changed so user code can tell, if needed 333 */ 334 struct qib_user_info { 335 /* 336 * version of user software, to detect compatibility issues. 337 * Should be set to QIB_USER_SWVERSION. 338 */ 339 __u32 spu_userversion; 340 341 __u32 _spu_unused2; 342 343 /* size of struct base_info to write to */ 344 __u32 spu_base_info_size; 345 346 __u32 spu_port_alg; /* which QIB_PORT_ALG_*; unused user minor < 11 */ 347 348 /* 349 * If two or more processes wish to share a context, each process 350 * must set the spu_subctxt_cnt and spu_subctxt_id to the same 351 * values. The only restriction on the spu_subctxt_id is that 352 * it be unique for a given node. 353 */ 354 __u16 spu_subctxt_cnt; 355 __u16 spu_subctxt_id; 356 357 __u32 spu_port; /* IB port requested by user if > 0 */ 358 359 /* 360 * address of struct base_info to write to 361 */ 362 __u64 spu_base_info; 363 364 } __aligned(8); 365 366 /* User commands. */ 367 368 /* 16 available, was: old set up userspace (for old user code) */ 369 #define QIB_CMD_CTXT_INFO 17 /* find out what resources we got */ 370 #define QIB_CMD_RECV_CTRL 18 /* control receipt of packets */ 371 #define QIB_CMD_TID_UPDATE 19 /* update expected TID entries */ 372 #define QIB_CMD_TID_FREE 20 /* free expected TID entries */ 373 #define QIB_CMD_SET_PART_KEY 21 /* add partition key */ 374 /* 22 available, was: return info on slave processes (for old user code) */ 375 #define QIB_CMD_ASSIGN_CTXT 23 /* allocate HCA and ctxt */ 376 #define QIB_CMD_USER_INIT 24 /* set up userspace */ 377 #define QIB_CMD_UNUSED_1 25 378 #define QIB_CMD_UNUSED_2 26 379 #define QIB_CMD_PIOAVAILUPD 27 /* force an update of PIOAvail reg */ 380 #define QIB_CMD_POLL_TYPE 28 /* set the kind of polling we want */ 381 #define QIB_CMD_ARMLAUNCH_CTRL 29 /* armlaunch detection control */ 382 /* 30 is unused */ 383 #define QIB_CMD_SDMA_INFLIGHT 31 /* sdma inflight counter request */ 384 #define QIB_CMD_SDMA_COMPLETE 32 /* sdma completion counter request */ 385 /* 33 available, was a testing feature */ 386 #define QIB_CMD_DISARM_BUFS 34 /* disarm send buffers w/ errors */ 387 #define QIB_CMD_ACK_EVENT 35 /* ack & clear bits */ 388 #define QIB_CMD_CPUS_LIST 36 /* list of cpus allocated, for pinned 389 * processes: qib_cpus_list */ 390 391 /* 392 * QIB_CMD_ACK_EVENT obsoletes QIB_CMD_DISARM_BUFS, but we keep it for 393 * compatibility with libraries from previous release. The ACK_EVENT 394 * will take appropriate driver action (if any, just DISARM for now), 395 * then clear the bits passed in as part of the mask. These bits are 396 * in the first 64bit word at spi_sendbuf_status, and are passed to 397 * the driver in the event_mask union as well. 398 */ 399 #define _QIB_EVENT_DISARM_BUFS_BIT 0 400 #define _QIB_EVENT_LINKDOWN_BIT 1 401 #define _QIB_EVENT_LID_CHANGE_BIT 2 402 #define _QIB_EVENT_LMC_CHANGE_BIT 3 403 #define _QIB_EVENT_SL2VL_CHANGE_BIT 4 404 #define _QIB_MAX_EVENT_BIT _QIB_EVENT_SL2VL_CHANGE_BIT 405 406 #define QIB_EVENT_DISARM_BUFS_BIT (1UL << _QIB_EVENT_DISARM_BUFS_BIT) 407 #define QIB_EVENT_LINKDOWN_BIT (1UL << _QIB_EVENT_LINKDOWN_BIT) 408 #define QIB_EVENT_LID_CHANGE_BIT (1UL << _QIB_EVENT_LID_CHANGE_BIT) 409 #define QIB_EVENT_LMC_CHANGE_BIT (1UL << _QIB_EVENT_LMC_CHANGE_BIT) 410 #define QIB_EVENT_SL2VL_CHANGE_BIT (1UL << _QIB_EVENT_SL2VL_CHANGE_BIT) 411 412 413 /* 414 * Poll types 415 */ 416 #define QIB_POLL_TYPE_ANYRCV 0x0 417 #define QIB_POLL_TYPE_URGENT 0x1 418 419 struct qib_ctxt_info { 420 __u16 num_active; /* number of active units */ 421 __u16 unit; /* unit (chip) assigned to caller */ 422 __u16 port; /* IB port assigned to caller (1-based) */ 423 __u16 ctxt; /* ctxt on unit assigned to caller */ 424 __u16 subctxt; /* subctxt on unit assigned to caller */ 425 __u16 num_ctxts; /* number of ctxts available on unit */ 426 __u16 num_subctxts; /* number of subctxts opened on ctxt */ 427 __u16 rec_cpu; /* cpu # for affinity (ffff if none) */ 428 }; 429 430 struct qib_tid_info { 431 __u32 tidcnt; 432 /* make structure same size in 32 and 64 bit */ 433 __u32 tid__unused; 434 /* virtual address of first page in transfer */ 435 __u64 tidvaddr; 436 /* pointer (same size 32/64 bit) to __u16 tid array */ 437 __u64 tidlist; 438 439 /* 440 * pointer (same size 32/64 bit) to bitmap of TIDs used 441 * for this call; checked for being large enough at open 442 */ 443 __u64 tidmap; 444 }; 445 446 struct qib_cmd { 447 __u32 type; /* command type */ 448 union { 449 struct qib_tid_info tid_info; 450 struct qib_user_info user_info; 451 452 /* 453 * address in userspace where we should put the sdma 454 * inflight counter 455 */ 456 __u64 sdma_inflight; 457 /* 458 * address in userspace where we should put the sdma 459 * completion counter 460 */ 461 __u64 sdma_complete; 462 /* address in userspace of struct qib_ctxt_info to 463 write result to */ 464 __u64 ctxt_info; 465 /* enable/disable receipt of packets */ 466 __u32 recv_ctrl; 467 /* enable/disable armlaunch errors (non-zero to enable) */ 468 __u32 armlaunch_ctrl; 469 /* partition key to set */ 470 __u16 part_key; 471 /* user address of __u32 bitmask of active slaves */ 472 __u64 slave_mask_addr; 473 /* type of polling we want */ 474 __u16 poll_type; 475 /* back pressure enable bit for one particular context */ 476 __u8 ctxt_bp; 477 /* qib_user_event_ack(), IPATH_EVENT_* bits */ 478 __u64 event_mask; 479 } cmd; 480 }; 481 482 struct qib_iovec { 483 /* Pointer to data, but same size 32 and 64 bit */ 484 __u64 iov_base; 485 486 /* 487 * Length of data; don't need 64 bits, but want 488 * qib_sendpkt to remain same size as before 32 bit changes, so... 489 */ 490 __u64 iov_len; 491 }; 492 493 /* 494 * Describes a single packet for send. Each packet can have one or more 495 * buffers, but the total length (exclusive of IB headers) must be less 496 * than the MTU, and if using the PIO method, entire packet length, 497 * including IB headers, must be less than the qib_piosize value (words). 498 * Use of this necessitates including sys/uio.h 499 */ 500 struct __qib_sendpkt { 501 __u32 sps_flags; /* flags for packet (TBD) */ 502 __u32 sps_cnt; /* number of entries to use in sps_iov */ 503 /* array of iov's describing packet. TEMPORARY */ 504 struct qib_iovec sps_iov[4]; 505 }; 506 507 /* 508 * Diagnostics can send a packet by "writing" the following 509 * structs to the diag data special file. 510 * This allows a custom 511 * pbc (+ static rate) qword, so that special modes and deliberate 512 * changes to CRCs can be used. The elements were also re-ordered 513 * for better alignment and to avoid padding issues. 514 */ 515 #define _DIAG_XPKT_VERS 3 516 struct qib_diag_xpkt { 517 __u16 version; 518 __u16 unit; 519 __u16 port; 520 __u16 len; 521 __u64 data; 522 __u64 pbc_wd; 523 }; 524 525 /* 526 * Data layout in I2C flash (for GUID, etc.) 527 * All fields are little-endian binary unless otherwise stated 528 */ 529 #define QIB_FLASH_VERSION 2 530 struct qib_flash { 531 /* flash layout version (QIB_FLASH_VERSION) */ 532 __u8 if_fversion; 533 /* checksum protecting if_length bytes */ 534 __u8 if_csum; 535 /* 536 * valid length (in use, protected by if_csum), including 537 * if_fversion and if_csum themselves) 538 */ 539 __u8 if_length; 540 /* the GUID, in network order */ 541 __u8 if_guid[8]; 542 /* number of GUIDs to use, starting from if_guid */ 543 __u8 if_numguid; 544 /* the (last 10 characters of) board serial number, in ASCII */ 545 char if_serial[12]; 546 /* board mfg date (YYYYMMDD ASCII) */ 547 char if_mfgdate[8]; 548 /* last board rework/test date (YYYYMMDD ASCII) */ 549 char if_testdate[8]; 550 /* logging of error counts, TBD */ 551 __u8 if_errcntp[4]; 552 /* powered on hours, updated at driver unload */ 553 __u8 if_powerhour[2]; 554 /* ASCII free-form comment field */ 555 char if_comment[32]; 556 /* Backwards compatible prefix for longer QLogic Serial Numbers */ 557 char if_sprefix[4]; 558 /* 82 bytes used, min flash size is 128 bytes */ 559 __u8 if_future[46]; 560 }; 561 562 /* 563 * These are the counters implemented in the chip, and are listed in order. 564 * The InterCaps naming is taken straight from the chip spec. 565 */ 566 struct qlogic_ib_counters { 567 __u64 LBIntCnt; 568 __u64 LBFlowStallCnt; 569 __u64 TxSDmaDescCnt; /* was Reserved1 */ 570 __u64 TxUnsupVLErrCnt; 571 __u64 TxDataPktCnt; 572 __u64 TxFlowPktCnt; 573 __u64 TxDwordCnt; 574 __u64 TxLenErrCnt; 575 __u64 TxMaxMinLenErrCnt; 576 __u64 TxUnderrunCnt; 577 __u64 TxFlowStallCnt; 578 __u64 TxDroppedPktCnt; 579 __u64 RxDroppedPktCnt; 580 __u64 RxDataPktCnt; 581 __u64 RxFlowPktCnt; 582 __u64 RxDwordCnt; 583 __u64 RxLenErrCnt; 584 __u64 RxMaxMinLenErrCnt; 585 __u64 RxICRCErrCnt; 586 __u64 RxVCRCErrCnt; 587 __u64 RxFlowCtrlErrCnt; 588 __u64 RxBadFormatCnt; 589 __u64 RxLinkProblemCnt; 590 __u64 RxEBPCnt; 591 __u64 RxLPCRCErrCnt; 592 __u64 RxBufOvflCnt; 593 __u64 RxTIDFullErrCnt; 594 __u64 RxTIDValidErrCnt; 595 __u64 RxPKeyMismatchCnt; 596 __u64 RxP0HdrEgrOvflCnt; 597 __u64 RxP1HdrEgrOvflCnt; 598 __u64 RxP2HdrEgrOvflCnt; 599 __u64 RxP3HdrEgrOvflCnt; 600 __u64 RxP4HdrEgrOvflCnt; 601 __u64 RxP5HdrEgrOvflCnt; 602 __u64 RxP6HdrEgrOvflCnt; 603 __u64 RxP7HdrEgrOvflCnt; 604 __u64 RxP8HdrEgrOvflCnt; 605 __u64 RxP9HdrEgrOvflCnt; 606 __u64 RxP10HdrEgrOvflCnt; 607 __u64 RxP11HdrEgrOvflCnt; 608 __u64 RxP12HdrEgrOvflCnt; 609 __u64 RxP13HdrEgrOvflCnt; 610 __u64 RxP14HdrEgrOvflCnt; 611 __u64 RxP15HdrEgrOvflCnt; 612 __u64 RxP16HdrEgrOvflCnt; 613 __u64 IBStatusChangeCnt; 614 __u64 IBLinkErrRecoveryCnt; 615 __u64 IBLinkDownedCnt; 616 __u64 IBSymbolErrCnt; 617 __u64 RxVL15DroppedPktCnt; 618 __u64 RxOtherLocalPhyErrCnt; 619 __u64 PcieRetryBufDiagQwordCnt; 620 __u64 ExcessBufferOvflCnt; 621 __u64 LocalLinkIntegrityErrCnt; 622 __u64 RxVlErrCnt; 623 __u64 RxDlidFltrCnt; 624 }; 625 626 /* 627 * The next set of defines are for packet headers, and chip register 628 * and memory bits that are visible to and/or used by user-mode software. 629 */ 630 631 /* RcvHdrFlags bits */ 632 #define QLOGIC_IB_RHF_LENGTH_MASK 0x7FF 633 #define QLOGIC_IB_RHF_LENGTH_SHIFT 0 634 #define QLOGIC_IB_RHF_RCVTYPE_MASK 0x7 635 #define QLOGIC_IB_RHF_RCVTYPE_SHIFT 11 636 #define QLOGIC_IB_RHF_EGRINDEX_MASK 0xFFF 637 #define QLOGIC_IB_RHF_EGRINDEX_SHIFT 16 638 #define QLOGIC_IB_RHF_SEQ_MASK 0xF 639 #define QLOGIC_IB_RHF_SEQ_SHIFT 0 640 #define QLOGIC_IB_RHF_HDRQ_OFFSET_MASK 0x7FF 641 #define QLOGIC_IB_RHF_HDRQ_OFFSET_SHIFT 4 642 #define QLOGIC_IB_RHF_H_ICRCERR 0x80000000 643 #define QLOGIC_IB_RHF_H_VCRCERR 0x40000000 644 #define QLOGIC_IB_RHF_H_PARITYERR 0x20000000 645 #define QLOGIC_IB_RHF_H_LENERR 0x10000000 646 #define QLOGIC_IB_RHF_H_MTUERR 0x08000000 647 #define QLOGIC_IB_RHF_H_IHDRERR 0x04000000 648 #define QLOGIC_IB_RHF_H_TIDERR 0x02000000 649 #define QLOGIC_IB_RHF_H_MKERR 0x01000000 650 #define QLOGIC_IB_RHF_H_IBERR 0x00800000 651 #define QLOGIC_IB_RHF_H_ERR_MASK 0xFF800000 652 #define QLOGIC_IB_RHF_L_USE_EGR 0x80000000 653 #define QLOGIC_IB_RHF_L_SWA 0x00008000 654 #define QLOGIC_IB_RHF_L_SWB 0x00004000 655 656 /* qlogic_ib header fields */ 657 #define QLOGIC_IB_I_VERS_MASK 0xF 658 #define QLOGIC_IB_I_VERS_SHIFT 28 659 #define QLOGIC_IB_I_CTXT_MASK 0xF 660 #define QLOGIC_IB_I_CTXT_SHIFT 24 661 #define QLOGIC_IB_I_TID_MASK 0x7FF 662 #define QLOGIC_IB_I_TID_SHIFT 13 663 #define QLOGIC_IB_I_OFFSET_MASK 0x1FFF 664 #define QLOGIC_IB_I_OFFSET_SHIFT 0 665 666 /* K_PktFlags bits */ 667 #define QLOGIC_IB_KPF_INTR 0x1 668 #define QLOGIC_IB_KPF_SUBCTXT_MASK 0x3 669 #define QLOGIC_IB_KPF_SUBCTXT_SHIFT 1 670 671 #define QLOGIC_IB_MAX_SUBCTXT 4 672 673 /* SendPIO per-buffer control */ 674 #define QLOGIC_IB_SP_TEST 0x40 675 #define QLOGIC_IB_SP_TESTEBP 0x20 676 #define QLOGIC_IB_SP_TRIGGER_SHIFT 15 677 678 /* SendPIOAvail bits */ 679 #define QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT 1 680 #define QLOGIC_IB_SENDPIOAVAIL_CHECK_SHIFT 0 681 682 /* qlogic_ib header format */ 683 struct qib_header { 684 /* 685 * Version - 4 bits, Context - 4 bits, TID - 10 bits and Offset - 686 * 14 bits before ECO change ~28 Dec 03. After that, Vers 4, 687 * Context 4, TID 11, offset 13. 688 */ 689 __le32 ver_ctxt_tid_offset; 690 __le16 chksum; 691 __le16 pkt_flags; 692 }; 693 694 /* 695 * qlogic_ib user message header format. 696 * This structure contains the first 4 fields common to all protocols 697 * that employ qlogic_ib. 698 */ 699 struct qib_message_header { 700 __be16 lrh[4]; 701 __be32 bth[3]; 702 /* fields below this point are in host byte order */ 703 struct qib_header iph; 704 /* fields below are simplified, but should match PSM */ 705 /* some are accessed by driver when packet spliting is needed */ 706 __u8 sub_opcode; 707 __u8 flags; 708 __u16 commidx; 709 __u32 ack_seq_num; 710 __u8 flowid; 711 __u8 hdr_dlen; 712 __u16 mqhdr; 713 __u32 uwords[4]; 714 }; 715 716 /* sequence number bits for message */ 717 union qib_seqnum { 718 struct { 719 __u32 seq:11; 720 __u32 gen:8; 721 __u32 flow:5; 722 }; 723 struct { 724 __u32 pkt:16; 725 __u32 msg:8; 726 }; 727 __u32 val; 728 }; 729 730 /* qib receiving-dma tid-session-member */ 731 struct qib_tid_session_member { 732 __u16 tid; 733 __u16 offset; 734 __u16 length; 735 }; 736 737 /* IB - LRH header consts */ 738 #define QIB_LRH_GRH 0x0003 /* 1. word of IB LRH - next header: GRH */ 739 #define QIB_LRH_BTH 0x0002 /* 1. word of IB LRH - next header: BTH */ 740 741 /* misc. */ 742 #define SIZE_OF_CRC 1 743 744 #define QIB_DEFAULT_P_KEY 0xFFFF 745 #define QIB_PSN_MASK 0xFFFFFF 746 #define QIB_EAGER_TID_ID QLOGIC_IB_I_TID_MASK 747 #define QIB_MULTICAST_QPN 0xFFFFFF 748 749 /* Receive Header Queue: receive type (from qlogic_ib) */ 750 #define RCVHQ_RCV_TYPE_EXPECTED 0 751 #define RCVHQ_RCV_TYPE_EAGER 1 752 #define RCVHQ_RCV_TYPE_NON_KD 2 753 #define RCVHQ_RCV_TYPE_ERROR 3 754 755 #define QIB_HEADER_QUEUE_WORDS 9 756 757 /* functions for extracting fields from rcvhdrq entries for the driver. 758 */ qib_hdrget_err_flags(const __le32 * rbuf)759 static inline __u32 qib_hdrget_err_flags(const __le32 *rbuf) 760 { 761 return __le32_to_cpu(rbuf[1]) & QLOGIC_IB_RHF_H_ERR_MASK; 762 } 763 qib_hdrget_rcv_type(const __le32 * rbuf)764 static inline __u32 qib_hdrget_rcv_type(const __le32 *rbuf) 765 { 766 return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_RCVTYPE_SHIFT) & 767 QLOGIC_IB_RHF_RCVTYPE_MASK; 768 } 769 qib_hdrget_length_in_bytes(const __le32 * rbuf)770 static inline __u32 qib_hdrget_length_in_bytes(const __le32 *rbuf) 771 { 772 return ((__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_LENGTH_SHIFT) & 773 QLOGIC_IB_RHF_LENGTH_MASK) << 2; 774 } 775 qib_hdrget_index(const __le32 * rbuf)776 static inline __u32 qib_hdrget_index(const __le32 *rbuf) 777 { 778 return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_EGRINDEX_SHIFT) & 779 QLOGIC_IB_RHF_EGRINDEX_MASK; 780 } 781 qib_hdrget_seq(const __le32 * rbuf)782 static inline __u32 qib_hdrget_seq(const __le32 *rbuf) 783 { 784 return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_SEQ_SHIFT) & 785 QLOGIC_IB_RHF_SEQ_MASK; 786 } 787 qib_hdrget_offset(const __le32 * rbuf)788 static inline __u32 qib_hdrget_offset(const __le32 *rbuf) 789 { 790 return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_HDRQ_OFFSET_SHIFT) & 791 QLOGIC_IB_RHF_HDRQ_OFFSET_MASK; 792 } 793 qib_hdrget_use_egr_buf(const __le32 * rbuf)794 static inline __u32 qib_hdrget_use_egr_buf(const __le32 *rbuf) 795 { 796 return __le32_to_cpu(rbuf[0]) & QLOGIC_IB_RHF_L_USE_EGR; 797 } 798 #endif /* _QIB_COMMON_H */ 799