| blob | 28cfe97cf1e9c0bcca990bb8a9670725dca90661 |
1 /*
2 * Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved.
3 * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
4 *
5 * This software is available to you under a choice of one of two
6 * licenses. You may choose to be licensed under the terms of the GNU
7 * General Public License (GPL) Version 2, available from the file
8 * COPYING in the main directory of this source tree, or the
9 * OpenIB.org BSD license below:
10 *
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
13 * conditions are met:
14 *
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
17 * disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials
22 * provided with the distribution.
23 *
24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
31 * SOFTWARE.
32 */
34 #ifndef _IPATH_COMMON_H
35 #define _IPATH_COMMON_H
37 /*
38 * This file contains defines, structures, etc. that are used
39 * to communicate between kernel and user code.
40 */
43 /* This is the IEEE-assigned OUI for QLogic Inc. InfiniPath */
44 #define IPATH_SRC_OUI_1 0x00
45 #define IPATH_SRC_OUI_2 0x11
46 #define IPATH_SRC_OUI_3 0x75
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
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 * IPATH_VERBOSE_TRACING define as 1 if you want additional tracing in
58 * fastpath code
59 * IPATH_TRACE_REGWRITES define as 1 if you want register writes to be
60 * traced in faspath code
61 * _IPATH_TRACING define as 0 if you want to remove all tracing in a
62 * compilation unit
63 * _IPATH_DEBUGGING define as 0 if you want to remove debug prints
64 */
66 /*
67 * The value in the BTH QP field that InfiniPath uses to differentiate
68 * an infinipath protocol IB packet vs standard IB transport
69 */
70 #define IPATH_KD_QP 0x656b79
72 /*
73 * valid states passed to ipath_set_linkstate() user call
74 */
75 #define IPATH_IB_LINKDOWN 0
76 #define IPATH_IB_LINKARM 1
77 #define IPATH_IB_LINKACTIVE 2
78 #define IPATH_IB_LINKDOWN_ONLY 3
79 #define IPATH_IB_LINKDOWN_SLEEP 4
80 #define IPATH_IB_LINKDOWN_DISABLE 5
86 /*
87 * These 3 values (SDR and DDR may be ORed for auto-speed
88 * negotiation) are used for the 3rd argument to path_f_set_ib_cfg
89 * with cmd IPATH_IB_CFG_SPD_ENB, by direct calls or via sysfs. They
90 * are also the the possible values for ipath_link_speed_enabled and active
91 * The values were chosen to match values used within the IB spec.
92 */
93 #define IPATH_IB_SDR 1
94 #define IPATH_IB_DDR 2
96 /*
97 * stats maintained by the driver. For now, at least, this is global
98 * to all minor devices.
99 */
101 /* number of interrupts taken */
102 __u64 sps_ints;
103 /* number of interrupts for errors */
104 __u64 sps_errints;
105 /* number of errors from chip (not incl. packet errors or CRC) */
106 __u64 sps_errs;
107 /* number of packet errors from chip other than CRC */
108 __u64 sps_pkterrs;
109 /* number of packets with CRC errors (ICRC and VCRC) */
110 __u64 sps_crcerrs;
111 /* number of hardware errors reported (parity, etc.) */
112 __u64 sps_hwerrs;
113 /* number of times IB link changed state unexpectedly */
114 __u64 sps_iblink;
116 /* number of kernel (port0) packets received */
117 __u64 sps_port0pkts;
118 /* number of "ethernet" packets sent by driver */
119 __u64 sps_ether_spkts;
120 /* number of "ethernet" packets received by driver */
121 __u64 sps_ether_rpkts;
122 /* number of SMA packets sent by driver. Obsolete. */
123 __u64 sps_sma_spkts;
124 /* number of SMA packets received by driver. Obsolete. */
125 __u64 sps_sma_rpkts;
126 /* number of times all ports rcvhdrq was full and packet dropped */
127 __u64 sps_hdrqfull;
128 /* number of times all ports egrtid was full and packet dropped */
129 __u64 sps_etidfull;
130 /*
131 * number of times we tried to send from driver, but no pio buffers
132 * avail
133 */
134 __u64 sps_nopiobufs;
135 /* number of ports currently open */
136 __u64 sps_ports;
137 /* list of pkeys (other than default) accepted (0 means not set) */
140 /* number of user ports per chip (not IB ports) */
141 __u32 sps_nports;
142 /* not our interrupt, or already handled */
143 __u32 sps_nullintr;
144 /* max number of packets handled per receive call */
145 __u32 sps_maxpkts_call;
146 /* avg number of packets handled per receive call */
147 __u32 sps_avgpkts_call;
148 /* total number of pages locked */
149 __u64 sps_pagelocks;
150 /* total number of pages unlocked */
151 __u64 sps_pageunlocks;
152 /*
153 * Number of packets dropped in kernel other than errors (ether
154 * packets if ipath not configured, etc.)
155 */
156 __u64 sps_krdrops;
158 /* pad for future growth */
160 };
162 /*
163 * These are the status bits readable (in ascii form, 64bit value)
164 * from the "status" sysfs file.
165 */
168 /* Device has been disabled via admin request */
169 #define IPATH_STATUS_ADMIN_DISABLED 0x4
170 /* Chip has been found and initted */
171 #define IPATH_STATUS_CHIP_PRESENT 0x20
172 /* IB link is at ACTIVE, usable for data traffic */
173 #define IPATH_STATUS_IB_READY 0x40
174 /* link is configured, LID, MTU, etc. have been set */
175 #define IPATH_STATUS_IB_CONF 0x80
176 /* no link established, probably no cable */
177 #define IPATH_STATUS_IB_NOCABLE 0x100
178 /* A Fatal hardware error has occurred. */
179 #define IPATH_STATUS_HWERROR 0x200
181 /*
182 * The list of usermode accessible registers. Also see Reg_* later in file.
183 */
185 /* (RO) DMA RcvHdr to be used next. */
187 /* (RW) RcvHdr entry to be processed next by host. */
189 /* (RO) Index of next Eager index to use. */
191 /* (RW) Eager TID to be processed next */
193 /* For internal use only; max register number. */
194 _IPATH_UregMax
197 /* bit values for spi_runtime_flags */
198 #define IPATH_RUNTIME_HT 0x1
199 #define IPATH_RUNTIME_PCIE 0x2
200 #define IPATH_RUNTIME_FORCE_WC_ORDER 0x4
201 #define IPATH_RUNTIME_RCVHDR_COPY 0x8
202 #define IPATH_RUNTIME_MASTER 0x10
203 #define IPATH_RUNTIME_NODMA_RTAIL 0x80
204 #define IPATH_RUNTIME_SDMA 0x200
205 #define IPATH_RUNTIME_FORCE_PIOAVAIL 0x400
206 #define IPATH_RUNTIME_PIO_REGSWAPPED 0x800
208 /*
209 * This structure is returned by ipath_userinit() immediately after
210 * open to get implementation-specific info, and info specific to this
211 * instance.
212 *
213 * This struct must have explict pad fields where type sizes
214 * may result in different alignments between 32 and 64 bit
215 * programs, since the 64 bit * bit kernel requires the user code
216 * to have matching offsets
217 */
219 /* version of hardware, for feature checking. */
220 __u32 spi_hw_version;
221 /* version of software, for feature checking. */
222 __u32 spi_sw_version;
223 /* InfiniPath port assigned, goes into sent packets */
224 __u16 spi_port;
225 __u16 spi_subport;
226 /*
227 * IB MTU, packets IB data must be less than this.
228 * The MTU is in bytes, and will be a multiple of 4 bytes.
229 */
230 __u32 spi_mtu;
231 /*
232 * Size of a PIO buffer. Any given packet's total size must be less
233 * than this (in words). Included is the starting control word, so
234 * if 513 is returned, then total pkt size is 512 words or less.
235 */
236 __u32 spi_piosize;
237 /* size of the TID cache in infinipath, in entries */
238 __u32 spi_tidcnt;
239 /* size of the TID Eager list in infinipath, in entries */
240 __u32 spi_tidegrcnt;
241 /* size of a single receive header queue entry in words. */
242 __u32 spi_rcvhdrent_size;
243 /*
244 * Count of receive header queue entries allocated.
245 * This may be less than the spu_rcvhdrcnt passed in!.
246 */
247 __u32 spi_rcvhdr_cnt;
249 /* per-chip and other runtime features bitmap (IPATH_RUNTIME_*) */
250 __u32 spi_runtime_flags;
252 /* address where receive buffer queue is mapped into */
253 __u64 spi_rcvhdr_base;
255 /* user program. */
257 /* base address of eager TID receive buffers. */
258 __u64 spi_rcv_egrbufs;
260 /* Allocated by initialization code, not by protocol. */
262 /*
263 * Size of each TID buffer in host memory, starting at
264 * spi_rcv_egrbufs. The buffers are virtually contiguous.
265 */
266 __u32 spi_rcv_egrbufsize;
267 /*
268 * The special QP (queue pair) value that identifies an infinipath
269 * protocol packet from standard IB packets. More, probably much
270 * more, to be added.
271 */
272 __u32 spi_qpair;
274 /*
275 * User register base for init code, not to be used directly by
276 * protocol or applications.
277 */
278 __u64 __spi_uregbase;
279 /*
280 * Maximum buffer size in bytes that can be used in a single TID
281 * entry (assuming the buffer is aligned to this boundary). This is
282 * the minimum of what the hardware and software support Guaranteed
283 * to be a power of 2.
284 */
285 __u32 spi_tid_maxsize;
286 /*
287 * alignment of each pio send buffer (byte count
288 * to add to spi_piobufbase to get to second buffer)
289 */
290 __u32 spi_pioalign;
291 /*
292 * The index of the first pio buffer available to this process;
293 * needed to do lookup in spi_pioavailaddr; not added to
294 * spi_piobufbase.
295 */
296 __u32 spi_pioindex;
297 /* number of buffers mapped for this process */
298 __u32 spi_piocnt;
300 /*
301 * Base address of writeonly pio buffers for this process.
302 * Each buffer has spi_piosize words, and is aligned on spi_pioalign
303 * boundaries. spi_piocnt buffers are mapped from this address
304 */
305 __u64 spi_piobufbase;
307 /*
308 * Base address of readonly memory copy of the pioavail registers.
309 * There are 2 bits for each buffer.
310 */
311 __u64 spi_pioavailaddr;
313 /*
314 * Address where driver updates a copy of the interface and driver
315 * status (IPATH_STATUS_*) as a 64 bit value. It's followed by a
316 * string indicating hardware error, if there was one.
317 */
318 __u64 spi_status;
320 /* number of chip ports available to user processes */
321 __u32 spi_nports;
322 /* unit number of chip we are using */
323 __u32 spi_unit;
324 /* num bufs in each contiguous set */
325 __u32 spi_rcv_egrperchunk;
326 /* size in bytes of each contiguous set */
327 __u32 spi_rcv_egrchunksize;
328 /* total size of mmap to cover full rcvegrbuffers */
329 __u32 spi_rcv_egrbuftotlen;
330 __u32 spi_filler_for_align;
331 /* address of readonly memory copy of the rcvhdrq tail register. */
332 __u64 spi_rcvhdr_tailaddr;
334 /* shared memory pages for subports if port is shared */
335 __u64 spi_subport_uregbase;
336 __u64 spi_subport_rcvegrbuf;
337 __u64 spi_subport_rcvhdr_base;
339 /* shared memory page for hardware port if it is shared */
340 __u64 spi_port_uregbase;
341 __u64 spi_port_rcvegrbuf;
342 __u64 spi_port_rcvhdr_base;
343 __u64 spi_port_rcvhdr_tailaddr;
348 /*
349 * This version number is given to the driver by the user code during
350 * initialization in the spu_userversion field of ipath_user_info, so
351 * the driver can check for compatibility with user code.
352 *
353 * The major version changes when data structures
354 * change in an incompatible way. The driver must be the same or higher
355 * for initialization to succeed. In some cases, a higher version
356 * driver will not interoperate with older software, and initialization
357 * will return an error.
358 */
359 #define IPATH_USER_SWMAJOR 1
361 /*
362 * Minor version differences are always compatible
363 * a within a major version, however if user software is larger
364 * than driver software, some new features and/or structure fields
365 * may not be implemented; the user code must deal with this if it
366 * cares, or it must abort after initialization reports the difference.
367 */
368 #define IPATH_USER_SWMINOR 6
370 #define IPATH_USER_SWVERSION ((IPATH_USER_SWMAJOR<<16) | IPATH_USER_SWMINOR)
372 #define IPATH_KERN_TYPE 0
374 /*
375 * Similarly, this is the kernel version going back to the user. It's
376 * slightly different, in that we want to tell if the driver was built as
377 * part of a QLogic release, or from the driver from openfabrics.org,
378 * kernel.org, or a standard distribution, for support reasons.
379 * The high bit is 0 for non-QLogic and 1 for QLogic-built/supplied.
380 *
381 * It's returned by the driver to the user code during initialization in the
382 * spi_sw_version field of ipath_base_info, so the user code can in turn
383 * check for compatibility with the kernel.
384 */
385 #define IPATH_KERN_SWVERSION ((IPATH_KERN_TYPE<<31) | IPATH_USER_SWVERSION)
387 /*
388 * This structure is passed to ipath_userinit() to tell the driver where
389 * user code buffers are, sizes, etc. The offsets and sizes of the
390 * fields must remain unchanged, for binary compatibility. It can
391 * be extended, if userversion is changed so user code can tell, if needed
392 */
394 /*
395 * version of user software, to detect compatibility issues.
396 * Should be set to IPATH_USER_SWVERSION.
397 */
398 __u32 spu_userversion;
400 /* desired number of receive header queue entries */
401 __u32 spu_rcvhdrcnt;
403 /* size of struct base_info to write to */
404 __u32 spu_base_info_size;
406 /*
407 * number of words in KD protocol header
408 * This tells InfiniPath how many words to copy to rcvhdrq. If 0,
409 * kernel uses a default. Once set, attempts to set any other value
410 * are an error (EAGAIN) until driver is reloaded.
411 */
412 __u32 spu_rcvhdrsize;
414 /*
415 * If two or more processes wish to share a port, each process
416 * must set the spu_subport_cnt and spu_subport_id to the same
417 * values. The only restriction on the spu_subport_id is that
418 * it be unique for a given node.
419 */
420 __u16 spu_subport_cnt;
421 __u16 spu_subport_id;
425 /*
426 * address of struct base_info to write to
427 */
428 __u64 spu_base_info;
432 /* User commands. */
434 #define IPATH_CMD_MIN 16
445 #define IPATH_CMD_UNUSED_1 25
446 #define IPATH_CMD_UNUSED_2 26
450 /* 30 is unused */
454 /*
455 * Poll types
456 */
457 #define IPATH_POLL_TYPE_URGENT 0x01
458 #define IPATH_POLL_TYPE_OVERFLOW 0x02
467 };
470 __u32 tidcnt;
471 /* make structure same size in 32 and 64 bit */
472 __u32 tid__unused;
473 /* virtual address of first page in transfer */
474 __u64 tidvaddr;
475 /* pointer (same size 32/64 bit) to __u16 tid array */
476 __u64 tidlist;
478 /*
479 * pointer (same size 32/64 bit) to bitmap of TIDs used
480 * for this call; checked for being large enough at open
481 */
482 __u64 tidmap;
483 };
491 /*
492 * address in userspace where we should put the sdma
493 * inflight counter
494 */
495 __u64 sdma_inflight;
496 /*
497 * address in userspace where we should put the sdma
498 * completion counter
499 */
500 __u64 sdma_complete;
501 /* address in userspace of struct ipath_port_info to
502 write result to */
503 __u64 port_info;
504 /* enable/disable receipt of packets */
505 __u32 recv_ctrl;
506 /* enable/disable armlaunch errors (non-zero to enable) */
507 __u32 armlaunch_ctrl;
508 /* partition key to set */
509 __u16 part_key;
510 /* user address of __u32 bitmask of active slaves */
511 __u64 slave_mask_addr;
512 /* type of polling we want */
513 __u16 poll_type;
515 };
518 /* Pointer to data, but same size 32 and 64 bit */
519 __u64 iov_base;
521 /*
522 * Length of data; don't need 64 bits, but want
523 * ipath_sendpkt to remain same size as before 32 bit changes, so...
524 */
525 __u64 iov_len;
526 };
528 /*
529 * Describes a single packet for send. Each packet can have one or more
530 * buffers, but the total length (exclusive of IB headers) must be less
531 * than the MTU, and if using the PIO method, entire packet length,
532 * including IB headers, must be less than the ipath_piosize value (words).
533 * Use of this necessitates including sys/uio.h
534 */
538 /* array of iov's describing packet. TEMPORARY */
540 };
542 /*
543 * diagnostics can send a packet by "writing" one of the following
544 * two structs to diag data special file
545 * The first is the legacy version for backward compatibility
546 */
548 __u32 unit;
549 __u64 data;
550 __u32 len;
551 };
553 /* The second diag_pkt struct is the expanded version that allows
554 * more control over the packet, specifically, by allowing a custom
555 * pbc (+ static rate) qword, so that special modes and deliberate
556 * changes to CRCs can be used. The elements were also re-ordered
557 * for better alignment and to avoid padding issues.
558 */
560 __u64 data;
561 __u64 pbc_wd;
562 __u32 unit;
563 __u32 len;
564 };
566 /*
567 * Data layout in I2C flash (for GUID, etc.)
568 * All fields are little-endian binary unless otherwise stated
569 */
570 #define IPATH_FLASH_VERSION 2
572 /* flash layout version (IPATH_FLASH_VERSION) */
573 __u8 if_fversion;
574 /* checksum protecting if_length bytes */
575 __u8 if_csum;
576 /*
577 * valid length (in use, protected by if_csum), including
578 * if_fversion and if_csum themselves)
579 */
580 __u8 if_length;
581 /* the GUID, in network order */
583 /* number of GUIDs to use, starting from if_guid */
584 __u8 if_numguid;
585 /* the (last 10 characters of) board serial number, in ASCII */
587 /* board mfg date (YYYYMMDD ASCII) */
589 /* last board rework/test date (YYYYMMDD ASCII) */
591 /* logging of error counts, TBD */
593 /* powered on hours, updated at driver unload */
595 /* ASCII free-form comment field */
597 /* Backwards compatible prefix for longer QLogic Serial Numbers */
599 /* 82 bytes used, min flash size is 128 bytes */
601 };
603 /*
604 * These are the counters implemented in the chip, and are listed in order.
605 * The InterCaps naming is taken straight from the chip spec.
606 */
608 __u64 LBIntCnt;
609 __u64 LBFlowStallCnt;
611 __u64 TxUnsupVLErrCnt;
612 __u64 TxDataPktCnt;
613 __u64 TxFlowPktCnt;
614 __u64 TxDwordCnt;
615 __u64 TxLenErrCnt;
616 __u64 TxMaxMinLenErrCnt;
617 __u64 TxUnderrunCnt;
618 __u64 TxFlowStallCnt;
619 __u64 TxDroppedPktCnt;
620 __u64 RxDroppedPktCnt;
621 __u64 RxDataPktCnt;
622 __u64 RxFlowPktCnt;
623 __u64 RxDwordCnt;
624 __u64 RxLenErrCnt;
625 __u64 RxMaxMinLenErrCnt;
626 __u64 RxICRCErrCnt;
627 __u64 RxVCRCErrCnt;
628 __u64 RxFlowCtrlErrCnt;
629 __u64 RxBadFormatCnt;
630 __u64 RxLinkProblemCnt;
631 __u64 RxEBPCnt;
632 __u64 RxLPCRCErrCnt;
633 __u64 RxBufOvflCnt;
634 __u64 RxTIDFullErrCnt;
635 __u64 RxTIDValidErrCnt;
636 __u64 RxPKeyMismatchCnt;
637 __u64 RxP0HdrEgrOvflCnt;
638 __u64 RxP1HdrEgrOvflCnt;
639 __u64 RxP2HdrEgrOvflCnt;
640 __u64 RxP3HdrEgrOvflCnt;
641 __u64 RxP4HdrEgrOvflCnt;
642 __u64 RxP5HdrEgrOvflCnt;
643 __u64 RxP6HdrEgrOvflCnt;
644 __u64 RxP7HdrEgrOvflCnt;
645 __u64 RxP8HdrEgrOvflCnt;
654 __u64 IBStatusChangeCnt;
655 __u64 IBLinkErrRecoveryCnt;
656 __u64 IBLinkDownedCnt;
657 __u64 IBSymbolErrCnt;
658 /* The following are new for IBA7220 */
659 __u64 RxVL15DroppedPktCnt;
660 __u64 RxOtherLocalPhyErrCnt;
661 __u64 PcieRetryBufDiagQwordCnt;
662 __u64 ExcessBufferOvflCnt;
663 __u64 LocalLinkIntegrityErrCnt;
664 __u64 RxVlErrCnt;
665 __u64 RxDlidFltrCnt;
666 };
668 /*
669 * The next set of defines are for packet headers, and chip register
670 * and memory bits that are visible to and/or used by user-mode software
671 * The other bits that are used only by the driver or diags are in
672 * ipath_registers.h
673 */
675 /* RcvHdrFlags bits */
676 #define INFINIPATH_RHF_LENGTH_MASK 0x7FF
677 #define INFINIPATH_RHF_LENGTH_SHIFT 0
678 #define INFINIPATH_RHF_RCVTYPE_MASK 0x7
679 #define INFINIPATH_RHF_RCVTYPE_SHIFT 11
680 #define INFINIPATH_RHF_EGRINDEX_MASK 0xFFF
681 #define INFINIPATH_RHF_EGRINDEX_SHIFT 16
682 #define INFINIPATH_RHF_SEQ_MASK 0xF
683 #define INFINIPATH_RHF_SEQ_SHIFT 0
684 #define INFINIPATH_RHF_HDRQ_OFFSET_MASK 0x7FF
685 #define INFINIPATH_RHF_HDRQ_OFFSET_SHIFT 4
686 #define INFINIPATH_RHF_H_ICRCERR 0x80000000
687 #define INFINIPATH_RHF_H_VCRCERR 0x40000000
688 #define INFINIPATH_RHF_H_PARITYERR 0x20000000
689 #define INFINIPATH_RHF_H_LENERR 0x10000000
690 #define INFINIPATH_RHF_H_MTUERR 0x08000000
691 #define INFINIPATH_RHF_H_IHDRERR 0x04000000
692 #define INFINIPATH_RHF_H_TIDERR 0x02000000
693 #define INFINIPATH_RHF_H_MKERR 0x01000000
694 #define INFINIPATH_RHF_H_IBERR 0x00800000
695 #define INFINIPATH_RHF_H_ERR_MASK 0xFF800000
696 #define INFINIPATH_RHF_L_USE_EGR 0x80000000
697 #define INFINIPATH_RHF_L_SWA 0x00008000
698 #define INFINIPATH_RHF_L_SWB 0x00004000
700 /* infinipath header fields */
701 #define INFINIPATH_I_VERS_MASK 0xF
702 #define INFINIPATH_I_VERS_SHIFT 28
703 #define INFINIPATH_I_PORT_MASK 0xF
704 #define INFINIPATH_I_PORT_SHIFT 24
705 #define INFINIPATH_I_TID_MASK 0x7FF
706 #define INFINIPATH_I_TID_SHIFT 13
707 #define INFINIPATH_I_OFFSET_MASK 0x1FFF
708 #define INFINIPATH_I_OFFSET_SHIFT 0
710 /* K_PktFlags bits */
711 #define INFINIPATH_KPF_INTR 0x1
712 #define INFINIPATH_KPF_SUBPORT_MASK 0x3
713 #define INFINIPATH_KPF_SUBPORT_SHIFT 1
715 #define INFINIPATH_MAX_SUBPORT 4
717 /* SendPIO per-buffer control */
718 #define INFINIPATH_SP_TEST 0x40
719 #define INFINIPATH_SP_TESTEBP 0x20
720 #define INFINIPATH_SP_TRIGGER_SHIFT 15
722 /* SendPIOAvail bits */
723 #define INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT 1
724 #define INFINIPATH_SENDPIOAVAIL_CHECK_SHIFT 0
726 /* infinipath header format */
728 /*
729 * Version - 4 bits, Port - 4 bits, TID - 10 bits and Offset -
730 * 14 bits before ECO change ~28 Dec 03. After that, Vers 4,
731 * Port 4, TID 11, offset 13.
732 */
733 __le32 ver_port_tid_offset;
734 __le16 chksum;
735 __le16 pkt_flags;
736 };
738 /* infinipath user message header format.
739 * This structure contains the first 4 fields common to all protocols
740 * that employ infinipath.
741 */
745 /* fields below this point are in host byte order */
747 __u8 sub_opcode;
748 };
750 /* infinipath ethernet header format */
755 __u8 sub_opcode;
756 __u8 cmd;
757 __be16 lid;
759 __u8 frag_num;
760 __u8 seq_num;
761 __le32 len;
762 /* MUST be of word size due to PIO write requirements */
763 __le32 csum;
764 __le16 csum_offset;
765 __le16 flags;
766 __u16 first_2_bytes;
768 };
771 /* IB - LRH header consts */
775 /* misc. */
776 #define SIZE_OF_CRC 1
778 #define IPATH_DEFAULT_P_KEY 0xFFFF
779 #define IPATH_PERMISSIVE_LID 0xFFFF
780 #define IPATH_AETH_CREDIT_SHIFT 24
781 #define IPATH_AETH_CREDIT_MASK 0x1F
782 #define IPATH_AETH_CREDIT_INVAL 0x1F
783 #define IPATH_PSN_MASK 0xFFFFFF
784 #define IPATH_MSN_MASK 0xFFFFFF
785 #define IPATH_QPN_MASK 0xFFFFFF
786 #define IPATH_MULTICAST_LID_BASE 0xC000
787 #define IPATH_EAGER_TID_ID INFINIPATH_I_TID_MASK
788 #define IPATH_MULTICAST_QPN 0xFFFFFF
790 /* Receive Header Queue: receive type (from infinipath) */
791 #define RCVHQ_RCV_TYPE_EXPECTED 0
792 #define RCVHQ_RCV_TYPE_EAGER 1
793 #define RCVHQ_RCV_TYPE_NON_KD 2
794 #define RCVHQ_RCV_TYPE_ERROR 3
797 /* sub OpCodes - ith4x */
798 #define IPATH_ITH4X_OPCODE_ENCAP 0x81
799 #define IPATH_ITH4X_OPCODE_LID_ARP 0x82
801 #define IPATH_HEADER_QUEUE_WORDS 9
803 /* functions for extracting fields from rcvhdrq entries for the driver.
804 */
806 {
808 }
811 {
814 }
817 {
820 }
823 {
826 }
829 {
832 }
835 {
838 }
841 {
843 }
846 {
849 }