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Diffstat (limited to 'drivers/infiniband/hw/cxgb3/cxio_wr.h')
-rw-r--r--drivers/infiniband/hw/cxgb3/cxio_wr.h685
1 files changed, 685 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/cxgb3/cxio_wr.h b/drivers/infiniband/hw/cxgb3/cxio_wr.h
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+++ b/drivers/infiniband/hw/cxgb3/cxio_wr.h
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1/*
2 * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
3 * Copyright (c) 2006 Open Grid Computing, 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 */
33#ifndef __CXIO_WR_H__
34#define __CXIO_WR_H__
35
36#include <asm/io.h>
37#include <linux/pci.h>
38#include <linux/timer.h>
39#include "firmware_exports.h"
40
41#define T3_MAX_SGE 4
42
43#define Q_EMPTY(rptr,wptr) ((rptr)==(wptr))
44#define Q_FULL(rptr,wptr,size_log2) ( (((wptr)-(rptr))>>(size_log2)) && \
45 ((rptr)!=(wptr)) )
46#define Q_GENBIT(ptr,size_log2) (!(((ptr)>>size_log2)&0x1))
47#define Q_FREECNT(rptr,wptr,size_log2) ((1UL<<size_log2)-((wptr)-(rptr)))
48#define Q_COUNT(rptr,wptr) ((wptr)-(rptr))
49#define Q_PTR2IDX(ptr,size_log2) (ptr & ((1UL<<size_log2)-1))
50
51static inline void ring_doorbell(void __iomem *doorbell, u32 qpid)
52{
53 writel(((1<<31) | qpid), doorbell);
54}
55
56#define SEQ32_GE(x,y) (!( (((u32) (x)) - ((u32) (y))) & 0x80000000 ))
57
58enum t3_wr_flags {
59 T3_COMPLETION_FLAG = 0x01,
60 T3_NOTIFY_FLAG = 0x02,
61 T3_SOLICITED_EVENT_FLAG = 0x04,
62 T3_READ_FENCE_FLAG = 0x08,
63 T3_LOCAL_FENCE_FLAG = 0x10
64} __attribute__ ((packed));
65
66enum t3_wr_opcode {
67 T3_WR_BP = FW_WROPCODE_RI_BYPASS,
68 T3_WR_SEND = FW_WROPCODE_RI_SEND,
69 T3_WR_WRITE = FW_WROPCODE_RI_RDMA_WRITE,
70 T3_WR_READ = FW_WROPCODE_RI_RDMA_READ,
71 T3_WR_INV_STAG = FW_WROPCODE_RI_LOCAL_INV,
72 T3_WR_BIND = FW_WROPCODE_RI_BIND_MW,
73 T3_WR_RCV = FW_WROPCODE_RI_RECEIVE,
74 T3_WR_INIT = FW_WROPCODE_RI_RDMA_INIT,
75 T3_WR_QP_MOD = FW_WROPCODE_RI_MODIFY_QP
76} __attribute__ ((packed));
77
78enum t3_rdma_opcode {
79 T3_RDMA_WRITE, /* IETF RDMAP v1.0 ... */
80 T3_READ_REQ,
81 T3_READ_RESP,
82 T3_SEND,
83 T3_SEND_WITH_INV,
84 T3_SEND_WITH_SE,
85 T3_SEND_WITH_SE_INV,
86 T3_TERMINATE,
87 T3_RDMA_INIT, /* CHELSIO RI specific ... */
88 T3_BIND_MW,
89 T3_FAST_REGISTER,
90 T3_LOCAL_INV,
91 T3_QP_MOD,
92 T3_BYPASS
93} __attribute__ ((packed));
94
95static inline enum t3_rdma_opcode wr2opcode(enum t3_wr_opcode wrop)
96{
97 switch (wrop) {
98 case T3_WR_BP: return T3_BYPASS;
99 case T3_WR_SEND: return T3_SEND;
100 case T3_WR_WRITE: return T3_RDMA_WRITE;
101 case T3_WR_READ: return T3_READ_REQ;
102 case T3_WR_INV_STAG: return T3_LOCAL_INV;
103 case T3_WR_BIND: return T3_BIND_MW;
104 case T3_WR_INIT: return T3_RDMA_INIT;
105 case T3_WR_QP_MOD: return T3_QP_MOD;
106 default: break;
107 }
108 return -1;
109}
110
111
112/* Work request id */
113union t3_wrid {
114 struct {
115 u32 hi;
116 u32 low;
117 } id0;
118 u64 id1;
119};
120
121#define WRID(wrid) (wrid.id1)
122#define WRID_GEN(wrid) (wrid.id0.wr_gen)
123#define WRID_IDX(wrid) (wrid.id0.wr_idx)
124#define WRID_LO(wrid) (wrid.id0.wr_lo)
125
126struct fw_riwrh {
127 __be32 op_seop_flags;
128 __be32 gen_tid_len;
129};
130
131#define S_FW_RIWR_OP 24
132#define M_FW_RIWR_OP 0xff
133#define V_FW_RIWR_OP(x) ((x) << S_FW_RIWR_OP)
134#define G_FW_RIWR_OP(x) ((((x) >> S_FW_RIWR_OP)) & M_FW_RIWR_OP)
135
136#define S_FW_RIWR_SOPEOP 22
137#define M_FW_RIWR_SOPEOP 0x3
138#define V_FW_RIWR_SOPEOP(x) ((x) << S_FW_RIWR_SOPEOP)
139
140#define S_FW_RIWR_FLAGS 8
141#define M_FW_RIWR_FLAGS 0x3fffff
142#define V_FW_RIWR_FLAGS(x) ((x) << S_FW_RIWR_FLAGS)
143#define G_FW_RIWR_FLAGS(x) ((((x) >> S_FW_RIWR_FLAGS)) & M_FW_RIWR_FLAGS)
144
145#define S_FW_RIWR_TID 8
146#define V_FW_RIWR_TID(x) ((x) << S_FW_RIWR_TID)
147
148#define S_FW_RIWR_LEN 0
149#define V_FW_RIWR_LEN(x) ((x) << S_FW_RIWR_LEN)
150
151#define S_FW_RIWR_GEN 31
152#define V_FW_RIWR_GEN(x) ((x) << S_FW_RIWR_GEN)
153
154struct t3_sge {
155 __be32 stag;
156 __be32 len;
157 __be64 to;
158};
159
160/* If num_sgle is zero, flit 5+ contains immediate data.*/
161struct t3_send_wr {
162 struct fw_riwrh wrh; /* 0 */
163 union t3_wrid wrid; /* 1 */
164
165 u8 rdmaop; /* 2 */
166 u8 reserved[3];
167 __be32 rem_stag;
168 __be32 plen; /* 3 */
169 __be32 num_sgle;
170 struct t3_sge sgl[T3_MAX_SGE]; /* 4+ */
171};
172
173struct t3_local_inv_wr {
174 struct fw_riwrh wrh; /* 0 */
175 union t3_wrid wrid; /* 1 */
176 __be32 stag; /* 2 */
177 __be32 reserved3;
178};
179
180struct t3_rdma_write_wr {
181 struct fw_riwrh wrh; /* 0 */
182 union t3_wrid wrid; /* 1 */
183 u8 rdmaop; /* 2 */
184 u8 reserved[3];
185 __be32 stag_sink;
186 __be64 to_sink; /* 3 */
187 __be32 plen; /* 4 */
188 __be32 num_sgle;
189 struct t3_sge sgl[T3_MAX_SGE]; /* 5+ */
190};
191
192struct t3_rdma_read_wr {
193 struct fw_riwrh wrh; /* 0 */
194 union t3_wrid wrid; /* 1 */
195 u8 rdmaop; /* 2 */
196 u8 reserved[3];
197 __be32 rem_stag;
198 __be64 rem_to; /* 3 */
199 __be32 local_stag; /* 4 */
200 __be32 local_len;
201 __be64 local_to; /* 5 */
202};
203
204enum t3_addr_type {
205 T3_VA_BASED_TO = 0x0,
206 T3_ZERO_BASED_TO = 0x1
207} __attribute__ ((packed));
208
209enum t3_mem_perms {
210 T3_MEM_ACCESS_LOCAL_READ = 0x1,
211 T3_MEM_ACCESS_LOCAL_WRITE = 0x2,
212 T3_MEM_ACCESS_REM_READ = 0x4,
213 T3_MEM_ACCESS_REM_WRITE = 0x8
214} __attribute__ ((packed));
215
216struct t3_bind_mw_wr {
217 struct fw_riwrh wrh; /* 0 */
218 union t3_wrid wrid; /* 1 */
219 u16 reserved; /* 2 */
220 u8 type;
221 u8 perms;
222 __be32 mr_stag;
223 __be32 mw_stag; /* 3 */
224 __be32 mw_len;
225 __be64 mw_va; /* 4 */
226 __be32 mr_pbl_addr; /* 5 */
227 u8 reserved2[3];
228 u8 mr_pagesz;
229};
230
231struct t3_receive_wr {
232 struct fw_riwrh wrh; /* 0 */
233 union t3_wrid wrid; /* 1 */
234 u8 pagesz[T3_MAX_SGE];
235 __be32 num_sgle; /* 2 */
236 struct t3_sge sgl[T3_MAX_SGE]; /* 3+ */
237 __be32 pbl_addr[T3_MAX_SGE];
238};
239
240struct t3_bypass_wr {
241 struct fw_riwrh wrh;
242 union t3_wrid wrid; /* 1 */
243};
244
245struct t3_modify_qp_wr {
246 struct fw_riwrh wrh; /* 0 */
247 union t3_wrid wrid; /* 1 */
248 __be32 flags; /* 2 */
249 __be32 quiesce; /* 2 */
250 __be32 max_ird; /* 3 */
251 __be32 max_ord; /* 3 */
252 __be64 sge_cmd; /* 4 */
253 __be64 ctx1; /* 5 */
254 __be64 ctx0; /* 6 */
255};
256
257enum t3_modify_qp_flags {
258 MODQP_QUIESCE = 0x01,
259 MODQP_MAX_IRD = 0x02,
260 MODQP_MAX_ORD = 0x04,
261 MODQP_WRITE_EC = 0x08,
262 MODQP_READ_EC = 0x10,
263};
264
265
266enum t3_mpa_attrs {
267 uP_RI_MPA_RX_MARKER_ENABLE = 0x1,
268 uP_RI_MPA_TX_MARKER_ENABLE = 0x2,
269 uP_RI_MPA_CRC_ENABLE = 0x4,
270 uP_RI_MPA_IETF_ENABLE = 0x8
271} __attribute__ ((packed));
272
273enum t3_qp_caps {
274 uP_RI_QP_RDMA_READ_ENABLE = 0x01,
275 uP_RI_QP_RDMA_WRITE_ENABLE = 0x02,
276 uP_RI_QP_BIND_ENABLE = 0x04,
277 uP_RI_QP_FAST_REGISTER_ENABLE = 0x08,
278 uP_RI_QP_STAG0_ENABLE = 0x10
279} __attribute__ ((packed));
280
281struct t3_rdma_init_attr {
282 u32 tid;
283 u32 qpid;
284 u32 pdid;
285 u32 scqid;
286 u32 rcqid;
287 u32 rq_addr;
288 u32 rq_size;
289 enum t3_mpa_attrs mpaattrs;
290 enum t3_qp_caps qpcaps;
291 u16 tcp_emss;
292 u32 ord;
293 u32 ird;
294 u64 qp_dma_addr;
295 u32 qp_dma_size;
296 u32 flags;
297};
298
299struct t3_rdma_init_wr {
300 struct fw_riwrh wrh; /* 0 */
301 union t3_wrid wrid; /* 1 */
302 __be32 qpid; /* 2 */
303 __be32 pdid;
304 __be32 scqid; /* 3 */
305 __be32 rcqid;
306 __be32 rq_addr; /* 4 */
307 __be32 rq_size;
308 u8 mpaattrs; /* 5 */
309 u8 qpcaps;
310 __be16 ulpdu_size;
311 __be32 flags; /* bits 31-1 - reservered */
312 /* bit 0 - set if RECV posted */
313 __be32 ord; /* 6 */
314 __be32 ird;
315 __be64 qp_dma_addr; /* 7 */
316 __be32 qp_dma_size; /* 8 */
317 u32 rsvd;
318};
319
320struct t3_genbit {
321 u64 flit[15];
322 __be64 genbit;
323};
324
325enum rdma_init_wr_flags {
326 RECVS_POSTED = 1,
327};
328
329union t3_wr {
330 struct t3_send_wr send;
331 struct t3_rdma_write_wr write;
332 struct t3_rdma_read_wr read;
333 struct t3_receive_wr recv;
334 struct t3_local_inv_wr local_inv;
335 struct t3_bind_mw_wr bind;
336 struct t3_bypass_wr bypass;
337 struct t3_rdma_init_wr init;
338 struct t3_modify_qp_wr qp_mod;
339 struct t3_genbit genbit;
340 u64 flit[16];
341};
342
343#define T3_SQ_CQE_FLIT 13
344#define T3_SQ_COOKIE_FLIT 14
345
346#define T3_RQ_COOKIE_FLIT 13
347#define T3_RQ_CQE_FLIT 14
348
349static inline enum t3_wr_opcode fw_riwrh_opcode(struct fw_riwrh *wqe)
350{
351 return G_FW_RIWR_OP(be32_to_cpu(wqe->op_seop_flags));
352}
353
354static inline void build_fw_riwrh(struct fw_riwrh *wqe, enum t3_wr_opcode op,
355 enum t3_wr_flags flags, u8 genbit, u32 tid,
356 u8 len)
357{
358 wqe->op_seop_flags = cpu_to_be32(V_FW_RIWR_OP(op) |
359 V_FW_RIWR_SOPEOP(M_FW_RIWR_SOPEOP) |
360 V_FW_RIWR_FLAGS(flags));
361 wmb();
362 wqe->gen_tid_len = cpu_to_be32(V_FW_RIWR_GEN(genbit) |
363 V_FW_RIWR_TID(tid) |
364 V_FW_RIWR_LEN(len));
365 /* 2nd gen bit... */
366 ((union t3_wr *)wqe)->genbit.genbit = cpu_to_be64(genbit);
367}
368
369/*
370 * T3 ULP2_TX commands
371 */
372enum t3_utx_mem_op {
373 T3_UTX_MEM_READ = 2,
374 T3_UTX_MEM_WRITE = 3
375};
376
377/* T3 MC7 RDMA TPT entry format */
378
379enum tpt_mem_type {
380 TPT_NON_SHARED_MR = 0x0,
381 TPT_SHARED_MR = 0x1,
382 TPT_MW = 0x2,
383 TPT_MW_RELAXED_PROTECTION = 0x3
384};
385
386enum tpt_addr_type {
387 TPT_ZBTO = 0,
388 TPT_VATO = 1
389};
390
391enum tpt_mem_perm {
392 TPT_LOCAL_READ = 0x8,
393 TPT_LOCAL_WRITE = 0x4,
394 TPT_REMOTE_READ = 0x2,
395 TPT_REMOTE_WRITE = 0x1
396};
397
398struct tpt_entry {
399 __be32 valid_stag_pdid;
400 __be32 flags_pagesize_qpid;
401
402 __be32 rsvd_pbl_addr;
403 __be32 len;
404 __be32 va_hi;
405 __be32 va_low_or_fbo;
406
407 __be32 rsvd_bind_cnt_or_pstag;
408 __be32 rsvd_pbl_size;
409};
410
411#define S_TPT_VALID 31
412#define V_TPT_VALID(x) ((x) << S_TPT_VALID)
413#define F_TPT_VALID V_TPT_VALID(1U)
414
415#define S_TPT_STAG_KEY 23
416#define M_TPT_STAG_KEY 0xFF
417#define V_TPT_STAG_KEY(x) ((x) << S_TPT_STAG_KEY)
418#define G_TPT_STAG_KEY(x) (((x) >> S_TPT_STAG_KEY) & M_TPT_STAG_KEY)
419
420#define S_TPT_STAG_STATE 22
421#define V_TPT_STAG_STATE(x) ((x) << S_TPT_STAG_STATE)
422#define F_TPT_STAG_STATE V_TPT_STAG_STATE(1U)
423
424#define S_TPT_STAG_TYPE 20
425#define M_TPT_STAG_TYPE 0x3
426#define V_TPT_STAG_TYPE(x) ((x) << S_TPT_STAG_TYPE)
427#define G_TPT_STAG_TYPE(x) (((x) >> S_TPT_STAG_TYPE) & M_TPT_STAG_TYPE)
428
429#define S_TPT_PDID 0
430#define M_TPT_PDID 0xFFFFF
431#define V_TPT_PDID(x) ((x) << S_TPT_PDID)
432#define G_TPT_PDID(x) (((x) >> S_TPT_PDID) & M_TPT_PDID)
433
434#define S_TPT_PERM 28
435#define M_TPT_PERM 0xF
436#define V_TPT_PERM(x) ((x) << S_TPT_PERM)
437#define G_TPT_PERM(x) (((x) >> S_TPT_PERM) & M_TPT_PERM)
438
439#define S_TPT_REM_INV_DIS 27
440#define V_TPT_REM_INV_DIS(x) ((x) << S_TPT_REM_INV_DIS)
441#define F_TPT_REM_INV_DIS V_TPT_REM_INV_DIS(1U)
442
443#define S_TPT_ADDR_TYPE 26
444#define V_TPT_ADDR_TYPE(x) ((x) << S_TPT_ADDR_TYPE)
445#define F_TPT_ADDR_TYPE V_TPT_ADDR_TYPE(1U)
446
447#define S_TPT_MW_BIND_ENABLE 25
448#define V_TPT_MW_BIND_ENABLE(x) ((x) << S_TPT_MW_BIND_ENABLE)
449#define F_TPT_MW_BIND_ENABLE V_TPT_MW_BIND_ENABLE(1U)
450
451#define S_TPT_PAGE_SIZE 20
452#define M_TPT_PAGE_SIZE 0x1F
453#define V_TPT_PAGE_SIZE(x) ((x) << S_TPT_PAGE_SIZE)
454#define G_TPT_PAGE_SIZE(x) (((x) >> S_TPT_PAGE_SIZE) & M_TPT_PAGE_SIZE)
455
456#define S_TPT_PBL_ADDR 0
457#define M_TPT_PBL_ADDR 0x1FFFFFFF
458#define V_TPT_PBL_ADDR(x) ((x) << S_TPT_PBL_ADDR)
459#define G_TPT_PBL_ADDR(x) (((x) >> S_TPT_PBL_ADDR) & M_TPT_PBL_ADDR)
460
461#define S_TPT_QPID 0
462#define M_TPT_QPID 0xFFFFF
463#define V_TPT_QPID(x) ((x) << S_TPT_QPID)
464#define G_TPT_QPID(x) (((x) >> S_TPT_QPID) & M_TPT_QPID)
465
466#define S_TPT_PSTAG 0
467#define M_TPT_PSTAG 0xFFFFFF
468#define V_TPT_PSTAG(x) ((x) << S_TPT_PSTAG)
469#define G_TPT_PSTAG(x) (((x) >> S_TPT_PSTAG) & M_TPT_PSTAG)
470
471#define S_TPT_PBL_SIZE 0
472#define M_TPT_PBL_SIZE 0xFFFFF
473#define V_TPT_PBL_SIZE(x) ((x) << S_TPT_PBL_SIZE)
474#define G_TPT_PBL_SIZE(x) (((x) >> S_TPT_PBL_SIZE) & M_TPT_PBL_SIZE)
475
476/*
477 * CQE defs
478 */
479struct t3_cqe {
480 __be32 header;
481 __be32 len;
482 union {
483 struct {
484 __be32 stag;
485 __be32 msn;
486 } rcqe;
487 struct {
488 u32 wrid_hi;
489 u32 wrid_low;
490 } scqe;
491 } u;
492};
493
494#define S_CQE_OOO 31
495#define M_CQE_OOO 0x1
496#define G_CQE_OOO(x) ((((x) >> S_CQE_OOO)) & M_CQE_OOO)
497#define V_CEQ_OOO(x) ((x)<<S_CQE_OOO)
498
499#define S_CQE_QPID 12
500#define M_CQE_QPID 0x7FFFF
501#define G_CQE_QPID(x) ((((x) >> S_CQE_QPID)) & M_CQE_QPID)
502#define V_CQE_QPID(x) ((x)<<S_CQE_QPID)
503
504#define S_CQE_SWCQE 11
505#define M_CQE_SWCQE 0x1
506#define G_CQE_SWCQE(x) ((((x) >> S_CQE_SWCQE)) & M_CQE_SWCQE)
507#define V_CQE_SWCQE(x) ((x)<<S_CQE_SWCQE)
508
509#define S_CQE_GENBIT 10
510#define M_CQE_GENBIT 0x1
511#define G_CQE_GENBIT(x) (((x) >> S_CQE_GENBIT) & M_CQE_GENBIT)
512#define V_CQE_GENBIT(x) ((x)<<S_CQE_GENBIT)
513
514#define S_CQE_STATUS 5
515#define M_CQE_STATUS 0x1F
516#define G_CQE_STATUS(x) ((((x) >> S_CQE_STATUS)) & M_CQE_STATUS)
517#define V_CQE_STATUS(x) ((x)<<S_CQE_STATUS)
518
519#define S_CQE_TYPE 4
520#define M_CQE_TYPE 0x1
521#define G_CQE_TYPE(x) ((((x) >> S_CQE_TYPE)) & M_CQE_TYPE)
522#define V_CQE_TYPE(x) ((x)<<S_CQE_TYPE)
523
524#define S_CQE_OPCODE 0
525#define M_CQE_OPCODE 0xF
526#define G_CQE_OPCODE(x) ((((x) >> S_CQE_OPCODE)) & M_CQE_OPCODE)
527#define V_CQE_OPCODE(x) ((x)<<S_CQE_OPCODE)
528
529#define SW_CQE(x) (G_CQE_SWCQE(be32_to_cpu((x).header)))
530#define CQE_OOO(x) (G_CQE_OOO(be32_to_cpu((x).header)))
531#define CQE_QPID(x) (G_CQE_QPID(be32_to_cpu((x).header)))
532#define CQE_GENBIT(x) (G_CQE_GENBIT(be32_to_cpu((x).header)))
533#define CQE_TYPE(x) (G_CQE_TYPE(be32_to_cpu((x).header)))
534#define SQ_TYPE(x) (CQE_TYPE((x)))
535#define RQ_TYPE(x) (!CQE_TYPE((x)))
536#define CQE_STATUS(x) (G_CQE_STATUS(be32_to_cpu((x).header)))
537#define CQE_OPCODE(x) (G_CQE_OPCODE(be32_to_cpu((x).header)))
538
539#define CQE_LEN(x) (be32_to_cpu((x).len))
540
541/* used for RQ completion processing */
542#define CQE_WRID_STAG(x) (be32_to_cpu((x).u.rcqe.stag))
543#define CQE_WRID_MSN(x) (be32_to_cpu((x).u.rcqe.msn))
544
545/* used for SQ completion processing */
546#define CQE_WRID_SQ_WPTR(x) ((x).u.scqe.wrid_hi)
547#define CQE_WRID_WPTR(x) ((x).u.scqe.wrid_low)
548
549/* generic accessor macros */
550#define CQE_WRID_HI(x) ((x).u.scqe.wrid_hi)
551#define CQE_WRID_LOW(x) ((x).u.scqe.wrid_low)
552
553#define TPT_ERR_SUCCESS 0x0
554#define TPT_ERR_STAG 0x1 /* STAG invalid: either the */
555 /* STAG is offlimt, being 0, */
556 /* or STAG_key mismatch */
557#define TPT_ERR_PDID 0x2 /* PDID mismatch */
558#define TPT_ERR_QPID 0x3 /* QPID mismatch */
559#define TPT_ERR_ACCESS 0x4 /* Invalid access right */
560#define TPT_ERR_WRAP 0x5 /* Wrap error */
561#define TPT_ERR_BOUND 0x6 /* base and bounds voilation */
562#define TPT_ERR_INVALIDATE_SHARED_MR 0x7 /* attempt to invalidate a */
563 /* shared memory region */
564#define TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND 0x8 /* attempt to invalidate a */
565 /* shared memory region */
566#define TPT_ERR_ECC 0x9 /* ECC error detected */
567#define TPT_ERR_ECC_PSTAG 0xA /* ECC error detected when */
568 /* reading PSTAG for a MW */
569 /* Invalidate */
570#define TPT_ERR_PBL_ADDR_BOUND 0xB /* pbl addr out of bounds: */
571 /* software error */
572#define TPT_ERR_SWFLUSH 0xC /* SW FLUSHED */
573#define TPT_ERR_CRC 0x10 /* CRC error */
574#define TPT_ERR_MARKER 0x11 /* Marker error */
575#define TPT_ERR_PDU_LEN_ERR 0x12 /* invalid PDU length */
576#define TPT_ERR_OUT_OF_RQE 0x13 /* out of RQE */
577#define TPT_ERR_DDP_VERSION 0x14 /* wrong DDP version */
578#define TPT_ERR_RDMA_VERSION 0x15 /* wrong RDMA version */
579#define TPT_ERR_OPCODE 0x16 /* invalid rdma opcode */
580#define TPT_ERR_DDP_QUEUE_NUM 0x17 /* invalid ddp queue number */
581#define TPT_ERR_MSN 0x18 /* MSN error */
582#define TPT_ERR_TBIT 0x19 /* tag bit not set correctly */
583#define TPT_ERR_MO 0x1A /* MO not 0 for TERMINATE */
584 /* or READ_REQ */
585#define TPT_ERR_MSN_GAP 0x1B
586#define TPT_ERR_MSN_RANGE 0x1C
587#define TPT_ERR_IRD_OVERFLOW 0x1D
588#define TPT_ERR_RQE_ADDR_BOUND 0x1E /* RQE addr out of bounds: */
589 /* software error */
590#define TPT_ERR_INTERNAL_ERR 0x1F /* internal error (opcode */
591 /* mismatch) */
592
593struct t3_swsq {
594 __u64 wr_id;
595 struct t3_cqe cqe;
596 __u32 sq_wptr;
597 __be32 read_len;
598 int opcode;
599 int complete;
600 int signaled;
601};
602
603/*
604 * A T3 WQ implements both the SQ and RQ.
605 */
606struct t3_wq {
607 union t3_wr *queue; /* DMA accessable memory */
608 dma_addr_t dma_addr; /* DMA address for HW */
609 DECLARE_PCI_UNMAP_ADDR(mapping) /* unmap kruft */
610 u32 error; /* 1 once we go to ERROR */
611 u32 qpid;
612 u32 wptr; /* idx to next available WR slot */
613 u32 size_log2; /* total wq size */
614 struct t3_swsq *sq; /* SW SQ */
615 struct t3_swsq *oldest_read; /* tracks oldest pending read */
616 u32 sq_wptr; /* sq_wptr - sq_rptr == count of */
617 u32 sq_rptr; /* pending wrs */
618 u32 sq_size_log2; /* sq size */
619 u64 *rq; /* SW RQ (holds consumer wr_ids */
620 u32 rq_wptr; /* rq_wptr - rq_rptr == count of */
621 u32 rq_rptr; /* pending wrs */
622 u64 *rq_oldest_wr; /* oldest wr on the SW RQ */
623 u32 rq_size_log2; /* rq size */
624 u32 rq_addr; /* rq adapter address */
625 void __iomem *doorbell; /* kernel db */
626 u64 udb; /* user db if any */
627};
628
629struct t3_cq {
630 u32 cqid;
631 u32 rptr;
632 u32 wptr;
633 u32 size_log2;
634 dma_addr_t dma_addr;
635 DECLARE_PCI_UNMAP_ADDR(mapping)
636 struct t3_cqe *queue;
637 struct t3_cqe *sw_queue;
638 u32 sw_rptr;
639 u32 sw_wptr;
640};
641
642#define CQ_VLD_ENTRY(ptr,size_log2,cqe) (Q_GENBIT(ptr,size_log2) == \
643 CQE_GENBIT(*cqe))
644
645static inline void cxio_set_wq_in_error(struct t3_wq *wq)
646{
647 wq->queue->flit[13] = 1;
648}
649
650static inline struct t3_cqe *cxio_next_hw_cqe(struct t3_cq *cq)
651{
652 struct t3_cqe *cqe;
653
654 cqe = cq->queue + (Q_PTR2IDX(cq->rptr, cq->size_log2));
655 if (CQ_VLD_ENTRY(cq->rptr, cq->size_log2, cqe))
656 return cqe;
657 return NULL;
658}
659
660static inline struct t3_cqe *cxio_next_sw_cqe(struct t3_cq *cq)
661{
662 struct t3_cqe *cqe;
663
664 if (!Q_EMPTY(cq->sw_rptr, cq->sw_wptr)) {
665 cqe = cq->sw_queue + (Q_PTR2IDX(cq->sw_rptr, cq->size_log2));
666 return cqe;
667 }
668 return NULL;
669}
670
671static inline struct t3_cqe *cxio_next_cqe(struct t3_cq *cq)
672{
673 struct t3_cqe *cqe;
674
675 if (!Q_EMPTY(cq->sw_rptr, cq->sw_wptr)) {
676 cqe = cq->sw_queue + (Q_PTR2IDX(cq->sw_rptr, cq->size_log2));
677 return cqe;
678 }
679 cqe = cq->queue + (Q_PTR2IDX(cq->rptr, cq->size_log2));
680 if (CQ_VLD_ENTRY(cq->rptr, cq->size_log2, cqe))
681 return cqe;
682 return NULL;
683}
684
685#endif