2 * Copyright (c) 2006, 2007, 2008, 2009, 2010 QLogic Corporation.
4 * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved.
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:
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
16 * - Redistributions of source code must retain the above
17 * copyright notice, this list of conditions and the following
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.
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
39 * This file contains defines, structures, etc. that are used
40 * to communicate between kernel and user code.
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
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.
52 #define IPS_PROTO_VERSION 2
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
59 * QIB_TRACE_REGWRITES define as 1 if you want register writes to be
60 * traced in faspath code
61 * _QIB_TRACING define as 0 if you want to remove all tracing in a
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.
72 #define QIB_KD_QP 0x656b78
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
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
91 * The list of usermode accessible registers. Also see Reg_* later in file.
94 /* (RO) DMA RcvHdr to be used next. */
96 /* (RW) RcvHdr entry to be processed next by host. */
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. */
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
122 * This structure is returned by qib_userinit() immediately after
123 * open to get implementation-specific info, and info specific to this
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
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 */
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.
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.
150 /* size of the TID cache in qlogic_ib, in entries */
152 /* size of the TID Eager list in qlogic_ib, in entries */
154 /* size of a single receive header queue entry in words. */
155 __u32 spi_rcvhdrent_size;
157 * Count of receive header queue entries allocated.
158 * This may be less than the spu_rcvhdrcnt passed in!.
160 __u32 spi_rcvhdr_cnt;
162 /* per-chip and other runtime features bitmap (QIB_RUNTIME_*) */
163 __u32 spi_runtime_flags;
165 /* address where hardware receive header queue is mapped */
166 __u64 spi_rcvhdr_base;
170 /* base address of eager TID receive buffers used by hardware. */
171 __u64 spi_rcv_egrbufs;
173 /* Allocated by initialization code, not by protocol. */
176 * Size of each TID buffer in host memory, starting at
177 * spi_rcv_egrbufs. The buffers are virtually contiguous.
179 __u32 spi_rcv_egrbufsize;
181 * The special QP (queue pair) value that identifies an qlogic_ib
182 * protocol packet from standard IB packets. More, probably much
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.
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.
199 __u32 spi_tid_maxsize;
201 * alignment of each pio send buffer (byte count
202 * to add to spi_piobufbase to get to second buffer)
206 * The index of the first pio buffer available to this process;
207 * needed to do lookup in spi_pioavailaddr; not added to
211 /* number of buffers mapped for this process */
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
219 __u64 spi_piobufbase;
222 * Base address of readonly memory copy of the pioavail registers.
223 * There are 2 bits for each buffer.
225 __u64 spi_pioavailaddr;
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.
235 /* number of chip ctxts available to user processes */
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;
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.
254 __u64 spi_subctxt_uregbase;
255 __u64 spi_subctxt_rcvegrbuf;
256 __u64 spi_subctxt_rcvhdr_base;
258 /* shared memory page for send buffer disarm status */
259 __u64 spi_sendbuf_status;
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.
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.
273 #define QIB_USER_SWMAJOR 1
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.
282 #define QIB_USER_SWMINOR 13
284 #define QIB_USER_SWVERSION ((QIB_USER_SWMAJOR << 16) | QIB_USER_SWMINOR)
286 #ifndef QIB_KERN_TYPE
287 #define QIB_KERN_TYPE 0
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.
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.
301 #define QIB_KERN_SWVERSION ((QIB_KERN_TYPE << 31) | QIB_USER_SWVERSION)
304 * Define the driver version number. This is something that refers only
305 * to the driver itself, not the software interfaces it supports.
307 #define QIB_DRIVER_VERSION_BASE "1.11"
309 /* create the final driver version string */
311 #define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE " " QIB_IDSTR
313 #define QIB_DRIVER_VERSION QIB_DRIVER_VERSION_BASE
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.
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 */
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
334 struct qib_user_info {
336 * version of user software, to detect compatibility issues.
337 * Should be set to QIB_USER_SWVERSION.
339 __u32 spu_userversion;
343 /* size of struct base_info to write to */
344 __u32 spu_base_info_size;
346 __u32 spu_port_alg; /* which QIB_PORT_ALG_*; unused user minor < 11 */
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.
354 __u16 spu_subctxt_cnt;
355 __u16 spu_subctxt_id;
357 __u32 spu_port; /* IB port requested by user if > 0 */
360 * address of struct base_info to write to
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 */
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 */
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.
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
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)
416 #define QIB_POLL_TYPE_ANYRCV 0x0
417 #define QIB_POLL_TYPE_URGENT 0x1
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) */
430 struct qib_tid_info {
432 /* make structure same size in 32 and 64 bit */
434 /* virtual address of first page in transfer */
436 /* pointer (same size 32/64 bit) to __u16 tid array */
440 * pointer (same size 32/64 bit) to bitmap of TIDs used
441 * for this call; checked for being large enough at open
447 __u32 type; /* command type */
449 struct qib_tid_info tid_info;
450 struct qib_user_info user_info;
453 * address in userspace where we should put the sdma
458 * address in userspace where we should put the sdma
462 /* address in userspace of struct qib_ctxt_info to
465 /* enable/disable receipt of packets */
467 /* enable/disable armlaunch errors (non-zero to enable) */
468 __u32 armlaunch_ctrl;
469 /* partition key to set */
471 /* user address of __u32 bitmask of active slaves */
472 __u64 slave_mask_addr;
473 /* type of polling we want */
475 /* back pressure enable bit for one particular context */
477 /* qib_user_event_ack(), IPATH_EVENT_* bits */
483 /* Pointer to data, but same size 32 and 64 bit */
487 * Length of data; don't need 64 bits, but want
488 * qib_sendpkt to remain same size as before 32 bit changes, so...
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
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];
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.
515 #define _DIAG_XPKT_VERS 3
516 struct qib_diag_xpkt {
526 * Data layout in I2C flash (for GUID, etc.)
527 * All fields are little-endian binary unless otherwise stated
529 #define QIB_FLASH_VERSION 2
531 /* flash layout version (QIB_FLASH_VERSION) */
533 /* checksum protecting if_length bytes */
536 * valid length (in use, protected by if_csum), including
537 * if_fversion and if_csum themselves)
540 /* the GUID, in network order */
542 /* number of GUIDs to use, starting from if_guid */
544 /* the (last 10 characters of) board serial number, in ASCII */
546 /* board mfg date (YYYYMMDD ASCII) */
548 /* last board rework/test date (YYYYMMDD ASCII) */
550 /* logging of error counts, TBD */
552 /* powered on hours, updated at driver unload */
553 __u8 if_powerhour[2];
554 /* ASCII free-form comment field */
556 /* Backwards compatible prefix for longer QLogic Serial Numbers */
558 /* 82 bytes used, min flash size is 128 bytes */
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.
566 struct qlogic_ib_counters {
568 __u64 LBFlowStallCnt;
569 __u64 TxSDmaDescCnt; /* was Reserved1 */
570 __u64 TxUnsupVLErrCnt;
575 __u64 TxMaxMinLenErrCnt;
577 __u64 TxFlowStallCnt;
578 __u64 TxDroppedPktCnt;
579 __u64 RxDroppedPktCnt;
584 __u64 RxMaxMinLenErrCnt;
587 __u64 RxFlowCtrlErrCnt;
588 __u64 RxBadFormatCnt;
589 __u64 RxLinkProblemCnt;
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;
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.
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
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
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
671 #define QLOGIC_IB_MAX_SUBCTXT 4
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
678 /* SendPIOAvail bits */
679 #define QLOGIC_IB_SENDPIOAVAIL_BUSY_SHIFT 1
680 #define QLOGIC_IB_SENDPIOAVAIL_CHECK_SHIFT 0
682 /* qlogic_ib header format */
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.
689 __le32 ver_ctxt_tid_offset;
695 * qlogic_ib user message header format.
696 * This structure contains the first 4 fields common to all protocols
697 * that employ qlogic_ib.
699 struct qib_message_header {
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 */
716 /* sequence number bits for message */
730 /* qib receiving-dma tid-session-member */
731 struct qib_tid_session_member {
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 */
742 #define SIZE_OF_CRC 1
744 #define QIB_DEFAULT_P_KEY 0xFFFF
745 #define QIB_AETH_CREDIT_SHIFT 24
746 #define QIB_AETH_CREDIT_MASK 0x1F
747 #define QIB_AETH_CREDIT_INVAL 0x1F
748 #define QIB_PSN_MASK 0xFFFFFF
749 #define QIB_MSN_MASK 0xFFFFFF
750 #define QIB_EAGER_TID_ID QLOGIC_IB_I_TID_MASK
751 #define QIB_MULTICAST_QPN 0xFFFFFF
753 /* Receive Header Queue: receive type (from qlogic_ib) */
754 #define RCVHQ_RCV_TYPE_EXPECTED 0
755 #define RCVHQ_RCV_TYPE_EAGER 1
756 #define RCVHQ_RCV_TYPE_NON_KD 2
757 #define RCVHQ_RCV_TYPE_ERROR 3
759 #define QIB_HEADER_QUEUE_WORDS 9
761 /* functions for extracting fields from rcvhdrq entries for the driver.
763 static inline __u32 qib_hdrget_err_flags(const __le32 *rbuf)
765 return __le32_to_cpu(rbuf[1]) & QLOGIC_IB_RHF_H_ERR_MASK;
768 static inline __u32 qib_hdrget_rcv_type(const __le32 *rbuf)
770 return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_RCVTYPE_SHIFT) &
771 QLOGIC_IB_RHF_RCVTYPE_MASK;
774 static inline __u32 qib_hdrget_length_in_bytes(const __le32 *rbuf)
776 return ((__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_LENGTH_SHIFT) &
777 QLOGIC_IB_RHF_LENGTH_MASK) << 2;
780 static inline __u32 qib_hdrget_index(const __le32 *rbuf)
782 return (__le32_to_cpu(rbuf[0]) >> QLOGIC_IB_RHF_EGRINDEX_SHIFT) &
783 QLOGIC_IB_RHF_EGRINDEX_MASK;
786 static inline __u32 qib_hdrget_seq(const __le32 *rbuf)
788 return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_SEQ_SHIFT) &
789 QLOGIC_IB_RHF_SEQ_MASK;
792 static inline __u32 qib_hdrget_offset(const __le32 *rbuf)
794 return (__le32_to_cpu(rbuf[1]) >> QLOGIC_IB_RHF_HDRQ_OFFSET_SHIFT) &
795 QLOGIC_IB_RHF_HDRQ_OFFSET_MASK;
798 static inline __u32 qib_hdrget_use_egr_buf(const __le32 *rbuf)
800 return __le32_to_cpu(rbuf[0]) & QLOGIC_IB_RHF_L_USE_EGR;
803 static inline __u32 qib_hdrget_qib_ver(__le32 hdrword)
805 return (__le32_to_cpu(hdrword) >> QLOGIC_IB_I_VERS_SHIFT) &
806 QLOGIC_IB_I_VERS_MASK;
809 #endif /* _QIB_COMMON_H */