drivers/infiniband/hw/qib/qib_qp.c

   1 /*
   2  * Copyright (c) 2012, 2013 Intel Corporation.  All rights reserved.
   3  * Copyright (c) 2006 - 2012 QLogic Corporation.  * All rights reserved.
   4  * Copyright (c) 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 #include <linux/err.h>
  36 #include <linux/vmalloc.h>
  37 #include <rdma/rdma_vt.h>
  38 #ifdef CONFIG_DEBUG_FS
  39 #include <linux/seq_file.h>
  40 #endif
  41
  42 #include "qib.h"
  43
  44 static inline unsigned mk_qpn(struct rvt_qpn_table *qpt,
  45                               struct rvt_qpn_map *map, unsigned off)
  46 {
  47         return (map - qpt->map) * RVT_BITS_PER_PAGE + off;
  48 }
  49
  50 static inline unsigned find_next_offset(struct rvt_qpn_table *qpt,
  51                                         struct rvt_qpn_map *map, unsigned off,
  52                                         unsigned n, u16 qpt_mask)
  53 {
  54         if (qpt_mask) {
  55                 off++;
  56                 if (((off & qpt_mask) >> 1) >= n)
  57                         off = (off | qpt_mask) + 2;
  58         } else {
  59                 off = find_next_zero_bit(map->page, RVT_BITS_PER_PAGE, off);
  60         }
  61         return off;
  62 }
  63
  64 /*
  65  * Convert the AETH credit code into the number of credits.
  66  */
  67 static u32 credit_table[31] = {
  68         0,                      /* 0 */
  69         1,                      /* 1 */
  70         2,                      /* 2 */
  71         3,                      /* 3 */
  72         4,                      /* 4 */
  73         6,                      /* 5 */
  74         8,                      /* 6 */
  75         12,                     /* 7 */
  76         16,                     /* 8 */
  77         24,                     /* 9 */
  78         32,                     /* A */
  79         48,                     /* B */
  80         64,                     /* C */
  81         96,                     /* D */
  82         128,                    /* E */
  83         192,                    /* F */
  84         256,                    /* 10 */
  85         384,                    /* 11 */
  86         512,                    /* 12 */
  87         768,                    /* 13 */
  88         1024,                   /* 14 */
  89         1536,                   /* 15 */
  90         2048,                   /* 16 */
  91         3072,                   /* 17 */
  92         4096,                   /* 18 */
  93         6144,                   /* 19 */
  94         8192,                   /* 1A */
  95         12288,                  /* 1B */
  96         16384,                  /* 1C */
  97         24576,                  /* 1D */
  98         32768                   /* 1E */
  99 };
 100
 101 const struct rvt_operation_params qib_post_parms[RVT_OPERATION_MAX] = {
 102 [IB_WR_RDMA_WRITE] = {
 103         .length = sizeof(struct ib_rdma_wr),
 104         .qpt_support = BIT(IB_QPT_UC) | BIT(IB_QPT_RC),
 105 },
 106
 107 [IB_WR_RDMA_READ] = {
 108         .length = sizeof(struct ib_rdma_wr),
 109         .qpt_support = BIT(IB_QPT_RC),
 110         .flags = RVT_OPERATION_ATOMIC,
 111 },
 112
 113 [IB_WR_ATOMIC_CMP_AND_SWP] = {
 114         .length = sizeof(struct ib_atomic_wr),
 115         .qpt_support = BIT(IB_QPT_RC),
 116         .flags = RVT_OPERATION_ATOMIC | RVT_OPERATION_ATOMIC_SGE,
 117 },
 118
 119 [IB_WR_ATOMIC_FETCH_AND_ADD] = {
 120         .length = sizeof(struct ib_atomic_wr),
 121         .qpt_support = BIT(IB_QPT_RC),
 122         .flags = RVT_OPERATION_ATOMIC | RVT_OPERATION_ATOMIC_SGE,
 123 },
 124
 125 [IB_WR_RDMA_WRITE_WITH_IMM] = {
 126         .length = sizeof(struct ib_rdma_wr),
 127         .qpt_support = BIT(IB_QPT_UC) | BIT(IB_QPT_RC),
 128 },
 129
 130 [IB_WR_SEND] = {
 131         .length = sizeof(struct ib_send_wr),
 132         .qpt_support = BIT(IB_QPT_UD) | BIT(IB_QPT_SMI) | BIT(IB_QPT_GSI) |
 133                        BIT(IB_QPT_UC) | BIT(IB_QPT_RC),
 134 },
 135
 136 [IB_WR_SEND_WITH_IMM] = {
 137         .length = sizeof(struct ib_send_wr),
 138         .qpt_support = BIT(IB_QPT_UD) | BIT(IB_QPT_SMI) | BIT(IB_QPT_GSI) |
 139                        BIT(IB_QPT_UC) | BIT(IB_QPT_RC),
 140 },
 141
 142 };
 143
 144 static void get_map_page(struct rvt_qpn_table *qpt, struct rvt_qpn_map *map,
 145                          gfp_t gfp)
 146 {
 147         unsigned long page = get_zeroed_page(gfp);
 148
 149         /*
 150          * Free the page if someone raced with us installing it.
 151          */
 152
 153         spin_lock(&qpt->lock);
 154         if (map->page)
 155                 free_page(page);
 156         else
 157                 map->page = (void *)page;
 158         spin_unlock(&qpt->lock);
 159 }
 160
 161 /*
 162  * Allocate the next available QPN or
 163  * zero/one for QP type IB_QPT_SMI/IB_QPT_GSI.
 164  */
 165 int qib_alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
 166                   enum ib_qp_type type, u8 port, gfp_t gfp)
 167 {
 168         u32 i, offset, max_scan, qpn;
 169         struct rvt_qpn_map *map;
 170         u32 ret;
 171         struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi);
 172         struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata,
 173                                               verbs_dev);
 174         u16 qpt_mask = dd->qpn_mask;
 175
 176         if (type == IB_QPT_SMI || type == IB_QPT_GSI) {
 177                 unsigned n;
 178
 179                 ret = type == IB_QPT_GSI;
 180                 n = 1 << (ret + 2 * (port - 1));
 181                 spin_lock(&qpt->lock);
 182                 if (qpt->flags & n)
 183                         ret = -EINVAL;
 184                 else
 185                         qpt->flags |= n;
 186                 spin_unlock(&qpt->lock);
 187                 goto bail;
 188         }
 189
 190         qpn = qpt->last + 2;
 191         if (qpn >= RVT_QPN_MAX)
 192                 qpn = 2;
 193         if (qpt_mask && ((qpn & qpt_mask) >> 1) >= dd->n_krcv_queues)
 194                 qpn = (qpn | qpt_mask) + 2;
 195         offset = qpn & RVT_BITS_PER_PAGE_MASK;
 196         map = &qpt->map[qpn / RVT_BITS_PER_PAGE];
 197         max_scan = qpt->nmaps - !offset;
 198         for (i = 0;;) {
 199                 if (unlikely(!map->page)) {
 200                         get_map_page(qpt, map, gfp);
 201                         if (unlikely(!map->page))
 202                                 break;
 203                 }
 204                 do {
 205                         if (!test_and_set_bit(offset, map->page)) {
 206                                 qpt->last = qpn;
 207                                 ret = qpn;
 208                                 goto bail;
 209                         }
 210                         offset = find_next_offset(qpt, map, offset,
 211                                 dd->n_krcv_queues, qpt_mask);
 212                         qpn = mk_qpn(qpt, map, offset);
 213                         /*
 214                          * This test differs from alloc_pidmap().
 215                          * If find_next_offset() does find a zero
 216                          * bit, we don't need to check for QPN
 217                          * wrapping around past our starting QPN.
 218                          * We just need to be sure we don't loop
 219                          * forever.
 220                          */
 221                 } while (offset < RVT_BITS_PER_PAGE && qpn < RVT_QPN_MAX);
 222                 /*
 223                  * In order to keep the number of pages allocated to a
 224                  * minimum, we scan the all existing pages before increasing
 225                  * the size of the bitmap table.
 226                  */
 227                 if (++i > max_scan) {
 228                         if (qpt->nmaps == RVT_QPNMAP_ENTRIES)
 229                                 break;
 230                         map = &qpt->map[qpt->nmaps++];
 231                         offset = 0;
 232                 } else if (map < &qpt->map[qpt->nmaps]) {
 233                         ++map;
 234                         offset = 0;
 235                 } else {
 236                         map = &qpt->map[0];
 237                         offset = 2;
 238                 }
 239                 qpn = mk_qpn(qpt, map, offset);
 240         }
 241
 242         ret = -ENOMEM;
 243
 244 bail:
 245         return ret;
 246 }
 247
 248 /**
 249  * qib_free_all_qps - check for QPs still in use
 250  */
 251 unsigned qib_free_all_qps(struct rvt_dev_info *rdi)
 252 {
 253         struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi);
 254         struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata,
 255                                               verbs_dev);
 256         unsigned n, qp_inuse = 0;
 257
 258         for (n = 0; n < dd->num_pports; n++) {
 259                 struct qib_ibport *ibp = &dd->pport[n].ibport_data;
 260
 261                 rcu_read_lock();
 262                 if (rcu_dereference(ibp->rvp.qp[0]))
 263                         qp_inuse++;
 264                 if (rcu_dereference(ibp->rvp.qp[1]))
 265                         qp_inuse++;
 266                 rcu_read_unlock();
 267         }
 268         return qp_inuse;
 269 }
 270
 271 void qib_notify_qp_reset(struct rvt_qp *qp)
 272 {
 273         struct qib_qp_priv *priv = qp->priv;
 274
 275         atomic_set(&priv->s_dma_busy, 0);
 276 }
 277
 278 void qib_notify_error_qp(struct rvt_qp *qp)
 279 {
 280         struct qib_qp_priv *priv = qp->priv;
 281         struct qib_ibdev *dev = to_idev(qp->ibqp.device);
 282
 283         spin_lock(&dev->rdi.pending_lock);
 284         if (!list_empty(&priv->iowait) && !(qp->s_flags & RVT_S_BUSY)) {
 285                 qp->s_flags &= ~RVT_S_ANY_WAIT_IO;
 286                 list_del_init(&priv->iowait);
 287         }
 288         spin_unlock(&dev->rdi.pending_lock);
 289
 290         if (!(qp->s_flags & RVT_S_BUSY)) {
 291                 qp->s_hdrwords = 0;
 292                 if (qp->s_rdma_mr) {
 293                         rvt_put_mr(qp->s_rdma_mr);
 294                         qp->s_rdma_mr = NULL;
 295                 }
 296                 if (priv->s_tx) {
 297                         qib_put_txreq(priv->s_tx);
 298                         priv->s_tx = NULL;
 299                 }
 300         }
 301 }
 302
 303 static int mtu_to_enum(u32 mtu)
 304 {
 305         int enum_mtu;
 306
 307         switch (mtu) {
 308         case 4096:
 309                 enum_mtu = IB_MTU_4096;
 310                 break;
 311         case 2048:
 312                 enum_mtu = IB_MTU_2048;
 313                 break;
 314         case 1024:
 315                 enum_mtu = IB_MTU_1024;
 316                 break;
 317         case 512:
 318                 enum_mtu = IB_MTU_512;
 319                 break;
 320         case 256:
 321                 enum_mtu = IB_MTU_256;
 322                 break;
 323         default:
 324                 enum_mtu = IB_MTU_2048;
 325         }
 326         return enum_mtu;
 327 }
 328
 329 int qib_get_pmtu_from_attr(struct rvt_dev_info *rdi, struct rvt_qp *qp,
 330                            struct ib_qp_attr *attr)
 331 {
 332         int mtu, pmtu, pidx = qp->port_num - 1;
 333         struct qib_ibdev *verbs_dev = container_of(rdi, struct qib_ibdev, rdi);
 334         struct qib_devdata *dd = container_of(verbs_dev, struct qib_devdata,
 335                                               verbs_dev);
 336         mtu = ib_mtu_enum_to_int(attr->path_mtu);
 337         if (mtu == -1)
 338                 return -EINVAL;
 339
 340         if (mtu > dd->pport[pidx].ibmtu)
 341                 pmtu = mtu_to_enum(dd->pport[pidx].ibmtu);
 342         else
 343                 pmtu = attr->path_mtu;
 344         return pmtu;
 345 }
 346
 347 int qib_mtu_to_path_mtu(u32 mtu)
 348 {
 349         return mtu_to_enum(mtu);
 350 }
 351
 352 u32 qib_mtu_from_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp, u32 pmtu)
 353 {
 354         return ib_mtu_enum_to_int(pmtu);
 355 }
 356
 357 /**
 358  * qib_compute_aeth - compute the AETH (syndrome + MSN)
 359  * @qp: the queue pair to compute the AETH for
 360  *
 361  * Returns the AETH.
 362  */
 363 __be32 qib_compute_aeth(struct rvt_qp *qp)
 364 {
 365         u32 aeth = qp->r_msn & QIB_MSN_MASK;
 366
 367         if (qp->ibqp.srq) {
 368                 /*
 369                  * Shared receive queues don't generate credits.
 370                  * Set the credit field to the invalid value.
 371                  */
 372                 aeth |= QIB_AETH_CREDIT_INVAL << QIB_AETH_CREDIT_SHIFT;
 373         } else {
 374                 u32 min, max, x;
 375                 u32 credits;
 376                 struct rvt_rwq *wq = qp->r_rq.wq;
 377                 u32 head;
 378                 u32 tail;
 379
 380                 /* sanity check pointers before trusting them */
 381                 head = wq->head;
 382                 if (head >= qp->r_rq.size)
 383                         head = 0;
 384                 tail = wq->tail;
 385                 if (tail >= qp->r_rq.size)
 386                         tail = 0;
 387                 /*
 388                  * Compute the number of credits available (RWQEs).
 389                  * XXX Not holding the r_rq.lock here so there is a small
 390                  * chance that the pair of reads are not atomic.
 391                  */
 392                 credits = head - tail;
 393                 if ((int)credits < 0)
 394                         credits += qp->r_rq.size;
 395                 /*
 396                  * Binary search the credit table to find the code to
 397                  * use.
 398                  */
 399                 min = 0;
 400                 max = 31;
 401                 for (;;) {
 402                         x = (min + max) / 2;
 403                         if (credit_table[x] == credits)
 404                                 break;
 405                         if (credit_table[x] > credits)
 406                                 max = x;
 407                         else if (min == x)
 408                                 break;
 409                         else
 410                                 min = x;
 411                 }
 412                 aeth |= x << QIB_AETH_CREDIT_SHIFT;
 413         }
 414         return cpu_to_be32(aeth);
 415 }
 416
 417 void *qib_qp_priv_alloc(struct rvt_dev_info *rdi, struct rvt_qp *qp, gfp_t gfp)
 418 {
 419         struct qib_qp_priv *priv;
 420
 421         priv = kzalloc(sizeof(*priv), gfp);
 422         if (!priv)
 423                 return ERR_PTR(-ENOMEM);
 424         priv->owner = qp;
 425
 426         priv->s_hdr = kzalloc(sizeof(*priv->s_hdr), gfp);
 427         if (!priv->s_hdr) {
 428                 kfree(priv);
 429                 return ERR_PTR(-ENOMEM);
 430         }
 431         init_waitqueue_head(&priv->wait_dma);
 432         INIT_WORK(&priv->s_work, _qib_do_send);
 433         INIT_LIST_HEAD(&priv->iowait);
 434
 435         return priv;
 436 }
 437
 438 void qib_qp_priv_free(struct rvt_dev_info *rdi, struct rvt_qp *qp)
 439 {
 440         struct qib_qp_priv *priv = qp->priv;
 441
 442         kfree(priv->s_hdr);
 443         kfree(priv);
 444 }
 445
 446 void qib_stop_send_queue(struct rvt_qp *qp)
 447 {
 448         struct qib_qp_priv *priv = qp->priv;
 449
 450         cancel_work_sync(&priv->s_work);
 451         del_timer_sync(&qp->s_timer);
 452 }
 453
 454 void qib_quiesce_qp(struct rvt_qp *qp)
 455 {
 456         struct qib_qp_priv *priv = qp->priv;
 457
 458         wait_event(priv->wait_dma, !atomic_read(&priv->s_dma_busy));
 459         if (priv->s_tx) {
 460                 qib_put_txreq(priv->s_tx);
 461                 priv->s_tx = NULL;
 462         }
 463 }
 464
 465 void qib_flush_qp_waiters(struct rvt_qp *qp)
 466 {
 467         struct qib_qp_priv *priv = qp->priv;
 468         struct qib_ibdev *dev = to_idev(qp->ibqp.device);
 469
 470         spin_lock(&dev->rdi.pending_lock);
 471         if (!list_empty(&priv->iowait))
 472                 list_del_init(&priv->iowait);
 473         spin_unlock(&dev->rdi.pending_lock);
 474 }
 475
 476 /**
 477  * qib_get_credit - flush the send work queue of a QP
 478  * @qp: the qp who's send work queue to flush
 479  * @aeth: the Acknowledge Extended Transport Header
 480  *
 481  * The QP s_lock should be held.
 482  */
 483 void qib_get_credit(struct rvt_qp *qp, u32 aeth)
 484 {
 485         u32 credit = (aeth >> QIB_AETH_CREDIT_SHIFT) & QIB_AETH_CREDIT_MASK;
 486
 487         /*
 488          * If the credit is invalid, we can send
 489          * as many packets as we like.  Otherwise, we have to
 490          * honor the credit field.
 491          */
 492         if (credit == QIB_AETH_CREDIT_INVAL) {
 493                 if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT)) {
 494                         qp->s_flags |= RVT_S_UNLIMITED_CREDIT;
 495                         if (qp->s_flags & RVT_S_WAIT_SSN_CREDIT) {
 496                                 qp->s_flags &= ~RVT_S_WAIT_SSN_CREDIT;
 497                                 qib_schedule_send(qp);
 498                         }
 499                 }
 500         } else if (!(qp->s_flags & RVT_S_UNLIMITED_CREDIT)) {
 501                 /* Compute new LSN (i.e., MSN + credit) */
 502                 credit = (aeth + credit_table[credit]) & QIB_MSN_MASK;
 503                 if (qib_cmp24(credit, qp->s_lsn) > 0) {
 504                         qp->s_lsn = credit;
 505                         if (qp->s_flags & RVT_S_WAIT_SSN_CREDIT) {
 506                                 qp->s_flags &= ~RVT_S_WAIT_SSN_CREDIT;
 507                                 qib_schedule_send(qp);
 508                         }
 509                 }
 510         }
 511 }
 512
 513 /**
 514  * qib_check_send_wqe - validate wr/wqe
 515  * @qp - The qp
 516  * @wqe - The built wqe
 517  *
 518  * validate wr/wqe.  This is called
 519  * prior to inserting the wqe into
 520  * the ring but after the wqe has been
 521  * setup.
 522  *
 523  * Returns 1 to force direct progress, 0 otherwise, -EINVAL on failure
 524  */
 525 int qib_check_send_wqe(struct rvt_qp *qp,
 526                        struct rvt_swqe *wqe)
 527 {
 528         struct rvt_ah *ah;
 529         int ret = 0;
 530
 531         switch (qp->ibqp.qp_type) {
 532         case IB_QPT_RC:
 533         case IB_QPT_UC:
 534                 if (wqe->length > 0x80000000U)
 535                         return -EINVAL;
 536                 break;
 537         case IB_QPT_SMI:
 538         case IB_QPT_GSI:
 539         case IB_QPT_UD:
 540                 ah = ibah_to_rvtah(wqe->ud_wr.ah);
 541                 if (wqe->length > (1 << ah->log_pmtu))
 542                         return -EINVAL;
 543                 /* progress hint */
 544                 ret = 1;
 545                 break;
 546         default:
 547                 break;
 548         }
 549         return ret;
 550 }
 551
 552 #ifdef CONFIG_DEBUG_FS
 553
 554 struct qib_qp_iter {
 555         struct qib_ibdev *dev;
 556         struct rvt_qp *qp;
 557         int n;
 558 };
 559
 560 struct qib_qp_iter *qib_qp_iter_init(struct qib_ibdev *dev)
 561 {
 562         struct qib_qp_iter *iter;
 563
 564         iter = kzalloc(sizeof(*iter), GFP_KERNEL);
 565         if (!iter)
 566                 return NULL;
 567
 568         iter->dev = dev;
 569
 570         return iter;
 571 }
 572
 573 int qib_qp_iter_next(struct qib_qp_iter *iter)
 574 {
 575         struct qib_ibdev *dev = iter->dev;
 576         int n = iter->n;
 577         int ret = 1;
 578         struct rvt_qp *pqp = iter->qp;
 579         struct rvt_qp *qp;
 580
 581         for (; n < dev->rdi.qp_dev->qp_table_size; n++) {
 582                 if (pqp)
 583                         qp = rcu_dereference(pqp->next);
 584                 else
 585                         qp = rcu_dereference(dev->rdi.qp_dev->qp_table[n]);
 586                 pqp = qp;
 587                 if (qp) {
 588                         iter->qp = qp;
 589                         iter->n = n;
 590                         return 0;
 591                 }
 592         }
 593         return ret;
 594 }
 595
 596 static const char * const qp_type_str[] = {
 597         "SMI", "GSI", "RC", "UC", "UD",
 598 };
 599
 600 void qib_qp_iter_print(struct seq_file *s, struct qib_qp_iter *iter)
 601 {
 602         struct rvt_swqe *wqe;
 603         struct rvt_qp *qp = iter->qp;
 604         struct qib_qp_priv *priv = qp->priv;
 605
 606         wqe = rvt_get_swqe_ptr(qp, qp->s_last);
 607         seq_printf(s,
 608                    "N %d QP%u %s %u %u %u f=%x %u %u %u %u %u PSN %x %x %x %x %x (%u %u %u %u %u %u) QP%u LID %x\n",
 609                    iter->n,
 610                    qp->ibqp.qp_num,
 611                    qp_type_str[qp->ibqp.qp_type],
 612                    qp->state,
 613                    wqe->wr.opcode,
 614                    qp->s_hdrwords,
 615                    qp->s_flags,
 616                    atomic_read(&priv->s_dma_busy),
 617                    !list_empty(&priv->iowait),
 618                    qp->timeout,
 619                    wqe->ssn,
 620                    qp->s_lsn,
 621                    qp->s_last_psn,
 622                    qp->s_psn, qp->s_next_psn,
 623                    qp->s_sending_psn, qp->s_sending_hpsn,
 624                    qp->s_last, qp->s_acked, qp->s_cur,
 625                    qp->s_tail, qp->s_head, qp->s_size,
 626                    qp->remote_qpn,
 627                    qp->remote_ah_attr.dlid);
 628 }
 629
 630 #endif