2 * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and/or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include <linux/pci.h>
37 #include <linux/timer.h>
38 #include "firmware_exports.h"
41 #define T3_MAX_INLINE 64
43 #define Q_EMPTY(rptr,wptr) ((rptr)==(wptr))
44 #define Q_FULL(rptr,wptr,size_log2) ( (((wptr)-(rptr))>>(size_log2)) && \
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))
51 static inline void ring_doorbell(void __iomem *doorbell, u32 qpid)
53 writel(((1<<31) | qpid), doorbell);
56 #define SEQ32_GE(x,y) (!( (((u32) (x)) - ((u32) (y))) & 0x80000000 ))
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));
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));
79 T3_RDMA_WRITE, /* IETF RDMAP v1.0 ... */
87 T3_RDMA_INIT, /* CHELSIO RI specific ... */
93 } __attribute__ ((packed));
95 static inline enum t3_rdma_opcode wr2opcode(enum t3_wr_opcode 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;
112 /* Work request id */
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)
127 __be32 op_seop_flags;
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)
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)
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)
145 #define S_FW_RIWR_TID 8
146 #define V_FW_RIWR_TID(x) ((x) << S_FW_RIWR_TID)
148 #define S_FW_RIWR_LEN 0
149 #define V_FW_RIWR_LEN(x) ((x) << S_FW_RIWR_LEN)
151 #define S_FW_RIWR_GEN 31
152 #define V_FW_RIWR_GEN(x) ((x) << S_FW_RIWR_GEN)
160 /* If num_sgle is zero, flit 5+ contains immediate data.*/
162 struct fw_riwrh wrh; /* 0 */
163 union t3_wrid wrid; /* 1 */
170 struct t3_sge sgl[T3_MAX_SGE]; /* 4+ */
173 struct t3_local_inv_wr {
174 struct fw_riwrh wrh; /* 0 */
175 union t3_wrid wrid; /* 1 */
180 struct t3_rdma_write_wr {
181 struct fw_riwrh wrh; /* 0 */
182 union t3_wrid wrid; /* 1 */
186 __be64 to_sink; /* 3 */
189 struct t3_sge sgl[T3_MAX_SGE]; /* 5+ */
192 struct t3_rdma_read_wr {
193 struct fw_riwrh wrh; /* 0 */
194 union t3_wrid wrid; /* 1 */
198 __be64 rem_to; /* 3 */
199 __be32 local_stag; /* 4 */
201 __be64 local_to; /* 5 */
205 T3_VA_BASED_TO = 0x0,
206 T3_ZERO_BASED_TO = 0x1
207 } __attribute__ ((packed));
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));
216 struct t3_bind_mw_wr {
217 struct fw_riwrh wrh; /* 0 */
218 union t3_wrid wrid; /* 1 */
219 u16 reserved; /* 2 */
223 __be32 mw_stag; /* 3 */
225 __be64 mw_va; /* 4 */
226 __be32 mr_pbl_addr; /* 5 */
231 struct 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];
240 struct t3_bypass_wr {
242 union t3_wrid wrid; /* 1 */
245 struct 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 */
257 enum 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,
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));
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));
281 struct t3_rdma_init_attr {
289 enum t3_mpa_attrs mpaattrs;
290 enum t3_qp_caps qpcaps;
300 struct t3_rdma_init_wr {
301 struct fw_riwrh wrh; /* 0 */
302 union t3_wrid wrid; /* 1 */
305 __be32 scqid; /* 3 */
307 __be32 rq_addr; /* 4 */
312 __be32 flags; /* bits 31-1 - reservered */
313 /* bit 0 - set if RECV posted */
316 __be64 qp_dma_addr; /* 7 */
317 __be32 qp_dma_size; /* 8 */
326 enum rdma_init_wr_flags {
327 RECVS_POSTED = (1<<0),
332 struct t3_send_wr send;
333 struct t3_rdma_write_wr write;
334 struct t3_rdma_read_wr read;
335 struct t3_receive_wr recv;
336 struct t3_local_inv_wr local_inv;
337 struct t3_bind_mw_wr bind;
338 struct t3_bypass_wr bypass;
339 struct t3_rdma_init_wr init;
340 struct t3_modify_qp_wr qp_mod;
341 struct t3_genbit genbit;
345 #define T3_SQ_CQE_FLIT 13
346 #define T3_SQ_COOKIE_FLIT 14
348 #define T3_RQ_COOKIE_FLIT 13
349 #define T3_RQ_CQE_FLIT 14
351 static inline enum t3_wr_opcode fw_riwrh_opcode(struct fw_riwrh *wqe)
353 return G_FW_RIWR_OP(be32_to_cpu(wqe->op_seop_flags));
356 static inline void build_fw_riwrh(struct fw_riwrh *wqe, enum t3_wr_opcode op,
357 enum t3_wr_flags flags, u8 genbit, u32 tid,
360 wqe->op_seop_flags = cpu_to_be32(V_FW_RIWR_OP(op) |
361 V_FW_RIWR_SOPEOP(M_FW_RIWR_SOPEOP) |
362 V_FW_RIWR_FLAGS(flags));
364 wqe->gen_tid_len = cpu_to_be32(V_FW_RIWR_GEN(genbit) |
368 ((union t3_wr *)wqe)->genbit.genbit = cpu_to_be64(genbit);
372 * T3 ULP2_TX commands
379 /* T3 MC7 RDMA TPT entry format */
382 TPT_NON_SHARED_MR = 0x0,
385 TPT_MW_RELAXED_PROTECTION = 0x3
394 TPT_LOCAL_READ = 0x8,
395 TPT_LOCAL_WRITE = 0x4,
396 TPT_REMOTE_READ = 0x2,
397 TPT_REMOTE_WRITE = 0x1
401 __be32 valid_stag_pdid;
402 __be32 flags_pagesize_qpid;
404 __be32 rsvd_pbl_addr;
407 __be32 va_low_or_fbo;
409 __be32 rsvd_bind_cnt_or_pstag;
410 __be32 rsvd_pbl_size;
413 #define S_TPT_VALID 31
414 #define V_TPT_VALID(x) ((x) << S_TPT_VALID)
415 #define F_TPT_VALID V_TPT_VALID(1U)
417 #define S_TPT_STAG_KEY 23
418 #define M_TPT_STAG_KEY 0xFF
419 #define V_TPT_STAG_KEY(x) ((x) << S_TPT_STAG_KEY)
420 #define G_TPT_STAG_KEY(x) (((x) >> S_TPT_STAG_KEY) & M_TPT_STAG_KEY)
422 #define S_TPT_STAG_STATE 22
423 #define V_TPT_STAG_STATE(x) ((x) << S_TPT_STAG_STATE)
424 #define F_TPT_STAG_STATE V_TPT_STAG_STATE(1U)
426 #define S_TPT_STAG_TYPE 20
427 #define M_TPT_STAG_TYPE 0x3
428 #define V_TPT_STAG_TYPE(x) ((x) << S_TPT_STAG_TYPE)
429 #define G_TPT_STAG_TYPE(x) (((x) >> S_TPT_STAG_TYPE) & M_TPT_STAG_TYPE)
432 #define M_TPT_PDID 0xFFFFF
433 #define V_TPT_PDID(x) ((x) << S_TPT_PDID)
434 #define G_TPT_PDID(x) (((x) >> S_TPT_PDID) & M_TPT_PDID)
436 #define S_TPT_PERM 28
437 #define M_TPT_PERM 0xF
438 #define V_TPT_PERM(x) ((x) << S_TPT_PERM)
439 #define G_TPT_PERM(x) (((x) >> S_TPT_PERM) & M_TPT_PERM)
441 #define S_TPT_REM_INV_DIS 27
442 #define V_TPT_REM_INV_DIS(x) ((x) << S_TPT_REM_INV_DIS)
443 #define F_TPT_REM_INV_DIS V_TPT_REM_INV_DIS(1U)
445 #define S_TPT_ADDR_TYPE 26
446 #define V_TPT_ADDR_TYPE(x) ((x) << S_TPT_ADDR_TYPE)
447 #define F_TPT_ADDR_TYPE V_TPT_ADDR_TYPE(1U)
449 #define S_TPT_MW_BIND_ENABLE 25
450 #define V_TPT_MW_BIND_ENABLE(x) ((x) << S_TPT_MW_BIND_ENABLE)
451 #define F_TPT_MW_BIND_ENABLE V_TPT_MW_BIND_ENABLE(1U)
453 #define S_TPT_PAGE_SIZE 20
454 #define M_TPT_PAGE_SIZE 0x1F
455 #define V_TPT_PAGE_SIZE(x) ((x) << S_TPT_PAGE_SIZE)
456 #define G_TPT_PAGE_SIZE(x) (((x) >> S_TPT_PAGE_SIZE) & M_TPT_PAGE_SIZE)
458 #define S_TPT_PBL_ADDR 0
459 #define M_TPT_PBL_ADDR 0x1FFFFFFF
460 #define V_TPT_PBL_ADDR(x) ((x) << S_TPT_PBL_ADDR)
461 #define G_TPT_PBL_ADDR(x) (((x) >> S_TPT_PBL_ADDR) & M_TPT_PBL_ADDR)
464 #define M_TPT_QPID 0xFFFFF
465 #define V_TPT_QPID(x) ((x) << S_TPT_QPID)
466 #define G_TPT_QPID(x) (((x) >> S_TPT_QPID) & M_TPT_QPID)
468 #define S_TPT_PSTAG 0
469 #define M_TPT_PSTAG 0xFFFFFF
470 #define V_TPT_PSTAG(x) ((x) << S_TPT_PSTAG)
471 #define G_TPT_PSTAG(x) (((x) >> S_TPT_PSTAG) & M_TPT_PSTAG)
473 #define S_TPT_PBL_SIZE 0
474 #define M_TPT_PBL_SIZE 0xFFFFF
475 #define V_TPT_PBL_SIZE(x) ((x) << S_TPT_PBL_SIZE)
476 #define G_TPT_PBL_SIZE(x) (((x) >> S_TPT_PBL_SIZE) & M_TPT_PBL_SIZE)
497 #define M_CQE_OOO 0x1
498 #define G_CQE_OOO(x) ((((x) >> S_CQE_OOO)) & M_CQE_OOO)
499 #define V_CEQ_OOO(x) ((x)<<S_CQE_OOO)
501 #define S_CQE_QPID 12
502 #define M_CQE_QPID 0x7FFFF
503 #define G_CQE_QPID(x) ((((x) >> S_CQE_QPID)) & M_CQE_QPID)
504 #define V_CQE_QPID(x) ((x)<<S_CQE_QPID)
506 #define S_CQE_SWCQE 11
507 #define M_CQE_SWCQE 0x1
508 #define G_CQE_SWCQE(x) ((((x) >> S_CQE_SWCQE)) & M_CQE_SWCQE)
509 #define V_CQE_SWCQE(x) ((x)<<S_CQE_SWCQE)
511 #define S_CQE_GENBIT 10
512 #define M_CQE_GENBIT 0x1
513 #define G_CQE_GENBIT(x) (((x) >> S_CQE_GENBIT) & M_CQE_GENBIT)
514 #define V_CQE_GENBIT(x) ((x)<<S_CQE_GENBIT)
516 #define S_CQE_STATUS 5
517 #define M_CQE_STATUS 0x1F
518 #define G_CQE_STATUS(x) ((((x) >> S_CQE_STATUS)) & M_CQE_STATUS)
519 #define V_CQE_STATUS(x) ((x)<<S_CQE_STATUS)
522 #define M_CQE_TYPE 0x1
523 #define G_CQE_TYPE(x) ((((x) >> S_CQE_TYPE)) & M_CQE_TYPE)
524 #define V_CQE_TYPE(x) ((x)<<S_CQE_TYPE)
526 #define S_CQE_OPCODE 0
527 #define M_CQE_OPCODE 0xF
528 #define G_CQE_OPCODE(x) ((((x) >> S_CQE_OPCODE)) & M_CQE_OPCODE)
529 #define V_CQE_OPCODE(x) ((x)<<S_CQE_OPCODE)
531 #define SW_CQE(x) (G_CQE_SWCQE(be32_to_cpu((x).header)))
532 #define CQE_OOO(x) (G_CQE_OOO(be32_to_cpu((x).header)))
533 #define CQE_QPID(x) (G_CQE_QPID(be32_to_cpu((x).header)))
534 #define CQE_GENBIT(x) (G_CQE_GENBIT(be32_to_cpu((x).header)))
535 #define CQE_TYPE(x) (G_CQE_TYPE(be32_to_cpu((x).header)))
536 #define SQ_TYPE(x) (CQE_TYPE((x)))
537 #define RQ_TYPE(x) (!CQE_TYPE((x)))
538 #define CQE_STATUS(x) (G_CQE_STATUS(be32_to_cpu((x).header)))
539 #define CQE_OPCODE(x) (G_CQE_OPCODE(be32_to_cpu((x).header)))
541 #define CQE_LEN(x) (be32_to_cpu((x).len))
543 /* used for RQ completion processing */
544 #define CQE_WRID_STAG(x) (be32_to_cpu((x).u.rcqe.stag))
545 #define CQE_WRID_MSN(x) (be32_to_cpu((x).u.rcqe.msn))
547 /* used for SQ completion processing */
548 #define CQE_WRID_SQ_WPTR(x) ((x).u.scqe.wrid_hi)
549 #define CQE_WRID_WPTR(x) ((x).u.scqe.wrid_low)
551 /* generic accessor macros */
552 #define CQE_WRID_HI(x) ((x).u.scqe.wrid_hi)
553 #define CQE_WRID_LOW(x) ((x).u.scqe.wrid_low)
555 #define TPT_ERR_SUCCESS 0x0
556 #define TPT_ERR_STAG 0x1 /* STAG invalid: either the */
557 /* STAG is offlimt, being 0, */
558 /* or STAG_key mismatch */
559 #define TPT_ERR_PDID 0x2 /* PDID mismatch */
560 #define TPT_ERR_QPID 0x3 /* QPID mismatch */
561 #define TPT_ERR_ACCESS 0x4 /* Invalid access right */
562 #define TPT_ERR_WRAP 0x5 /* Wrap error */
563 #define TPT_ERR_BOUND 0x6 /* base and bounds voilation */
564 #define TPT_ERR_INVALIDATE_SHARED_MR 0x7 /* attempt to invalidate a */
565 /* shared memory region */
566 #define TPT_ERR_INVALIDATE_MR_WITH_MW_BOUND 0x8 /* attempt to invalidate a */
567 /* shared memory region */
568 #define TPT_ERR_ECC 0x9 /* ECC error detected */
569 #define TPT_ERR_ECC_PSTAG 0xA /* ECC error detected when */
570 /* reading PSTAG for a MW */
572 #define TPT_ERR_PBL_ADDR_BOUND 0xB /* pbl addr out of bounds: */
574 #define TPT_ERR_SWFLUSH 0xC /* SW FLUSHED */
575 #define TPT_ERR_CRC 0x10 /* CRC error */
576 #define TPT_ERR_MARKER 0x11 /* Marker error */
577 #define TPT_ERR_PDU_LEN_ERR 0x12 /* invalid PDU length */
578 #define TPT_ERR_OUT_OF_RQE 0x13 /* out of RQE */
579 #define TPT_ERR_DDP_VERSION 0x14 /* wrong DDP version */
580 #define TPT_ERR_RDMA_VERSION 0x15 /* wrong RDMA version */
581 #define TPT_ERR_OPCODE 0x16 /* invalid rdma opcode */
582 #define TPT_ERR_DDP_QUEUE_NUM 0x17 /* invalid ddp queue number */
583 #define TPT_ERR_MSN 0x18 /* MSN error */
584 #define TPT_ERR_TBIT 0x19 /* tag bit not set correctly */
585 #define TPT_ERR_MO 0x1A /* MO not 0 for TERMINATE */
587 #define TPT_ERR_MSN_GAP 0x1B
588 #define TPT_ERR_MSN_RANGE 0x1C
589 #define TPT_ERR_IRD_OVERFLOW 0x1D
590 #define TPT_ERR_RQE_ADDR_BOUND 0x1E /* RQE addr out of bounds: */
592 #define TPT_ERR_INTERNAL_ERR 0x1F /* internal error (opcode */
606 * A T3 WQ implements both the SQ and RQ.
609 union t3_wr *queue; /* DMA accessable memory */
610 dma_addr_t dma_addr; /* DMA address for HW */
611 DECLARE_PCI_UNMAP_ADDR(mapping) /* unmap kruft */
612 u32 error; /* 1 once we go to ERROR */
614 u32 wptr; /* idx to next available WR slot */
615 u32 size_log2; /* total wq size */
616 struct t3_swsq *sq; /* SW SQ */
617 struct t3_swsq *oldest_read; /* tracks oldest pending read */
618 u32 sq_wptr; /* sq_wptr - sq_rptr == count of */
619 u32 sq_rptr; /* pending wrs */
620 u32 sq_size_log2; /* sq size */
621 u64 *rq; /* SW RQ (holds consumer wr_ids */
622 u32 rq_wptr; /* rq_wptr - rq_rptr == count of */
623 u32 rq_rptr; /* pending wrs */
624 u64 *rq_oldest_wr; /* oldest wr on the SW RQ */
625 u32 rq_size_log2; /* rq size */
626 u32 rq_addr; /* rq adapter address */
627 void __iomem *doorbell; /* kernel db */
628 u64 udb; /* user db if any */
637 DECLARE_PCI_UNMAP_ADDR(mapping)
638 struct t3_cqe *queue;
639 struct t3_cqe *sw_queue;
644 #define CQ_VLD_ENTRY(ptr,size_log2,cqe) (Q_GENBIT(ptr,size_log2) == \
647 static inline void cxio_set_wq_in_error(struct t3_wq *wq)
649 wq->queue->flit[13] = 1;
652 static inline struct t3_cqe *cxio_next_hw_cqe(struct t3_cq *cq)
656 cqe = cq->queue + (Q_PTR2IDX(cq->rptr, cq->size_log2));
657 if (CQ_VLD_ENTRY(cq->rptr, cq->size_log2, cqe))
662 static inline struct t3_cqe *cxio_next_sw_cqe(struct t3_cq *cq)
666 if (!Q_EMPTY(cq->sw_rptr, cq->sw_wptr)) {
667 cqe = cq->sw_queue + (Q_PTR2IDX(cq->sw_rptr, cq->size_log2));
673 static inline struct t3_cqe *cxio_next_cqe(struct t3_cq *cq)
677 if (!Q_EMPTY(cq->sw_rptr, cq->sw_wptr)) {
678 cqe = cq->sw_queue + (Q_PTR2IDX(cq->sw_rptr, cq->size_log2));
681 cqe = cq->queue + (Q_PTR2IDX(cq->rptr, cq->size_log2));
682 if (CQ_VLD_ENTRY(cq->rptr, cq->size_log2, cqe))