2 * Copyright (c) 2004 Topspin Communications. 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
32 * $Id: mthca_mr.c 1349 2004-12-16 21:09:43Z roland $
35 #include <linux/slab.h>
36 #include <linux/init.h>
37 #include <linux/errno.h>
39 #include "mthca_dev.h"
40 #include "mthca_cmd.h"
41 #include "mthca_memfree.h"
44 struct mthca_buddy *buddy;
50 * Must be packed because mtt_seg is 64 bits but only aligned to 32 bits.
52 struct mthca_mpt_entry {
61 u32 window_count_limit;
63 u32 mtt_sz; /* Arbel only */
65 } __attribute__((packed));
67 #define MTHCA_MPT_FLAG_SW_OWNS (0xfUL << 28)
68 #define MTHCA_MPT_FLAG_MIO (1 << 17)
69 #define MTHCA_MPT_FLAG_BIND_ENABLE (1 << 15)
70 #define MTHCA_MPT_FLAG_PHYSICAL (1 << 9)
71 #define MTHCA_MPT_FLAG_REGION (1 << 8)
73 #define MTHCA_MTT_FLAG_PRESENT 1
75 #define MTHCA_MPT_STATUS_SW 0xF0
76 #define MTHCA_MPT_STATUS_HW 0x00
79 * Buddy allocator for MTT segments (currently not very efficient
80 * since it doesn't keep a free list and just searches linearly
81 * through the bitmaps)
84 static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
90 spin_lock(&buddy->lock);
92 for (o = order; o <= buddy->max_order; ++o) {
93 m = 1 << (buddy->max_order - o);
94 seg = find_first_bit(buddy->bits[o], m);
99 spin_unlock(&buddy->lock);
103 clear_bit(seg, buddy->bits[o]);
108 set_bit(seg ^ 1, buddy->bits[o]);
111 spin_unlock(&buddy->lock);
118 static void mthca_buddy_free(struct mthca_buddy *buddy, u32 seg, int order)
122 spin_lock(&buddy->lock);
124 while (test_bit(seg ^ 1, buddy->bits[order])) {
125 clear_bit(seg ^ 1, buddy->bits[order]);
130 set_bit(seg, buddy->bits[order]);
132 spin_unlock(&buddy->lock);
135 static int __devinit mthca_buddy_init(struct mthca_buddy *buddy, int max_order)
139 buddy->max_order = max_order;
140 spin_lock_init(&buddy->lock);
142 buddy->bits = kmalloc((buddy->max_order + 1) * sizeof (long *),
147 memset(buddy->bits, 0, (buddy->max_order + 1) * sizeof (long *));
149 for (i = 0; i <= buddy->max_order; ++i) {
150 s = BITS_TO_LONGS(1 << (buddy->max_order - i));
151 buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
154 bitmap_zero(buddy->bits[i],
155 1 << (buddy->max_order - i));
158 set_bit(0, buddy->bits[buddy->max_order]);
163 for (i = 0; i <= buddy->max_order; ++i)
164 kfree(buddy->bits[i]);
172 static void __devexit mthca_buddy_cleanup(struct mthca_buddy *buddy)
176 for (i = 0; i <= buddy->max_order; ++i)
177 kfree(buddy->bits[i]);
182 static u32 mthca_alloc_mtt_range(struct mthca_dev *dev, int order,
183 struct mthca_buddy *buddy)
185 u32 seg = mthca_buddy_alloc(buddy, order);
190 if (mthca_is_memfree(dev))
191 if (mthca_table_get_range(dev, dev->mr_table.mtt_table, seg,
192 seg + (1 << order) - 1)) {
193 mthca_buddy_free(buddy, seg, order);
200 static struct mthca_mtt *__mthca_alloc_mtt(struct mthca_dev *dev, int size,
201 struct mthca_buddy *buddy)
203 struct mthca_mtt *mtt;
207 return ERR_PTR(-EINVAL);
209 mtt = kmalloc(sizeof *mtt, GFP_KERNEL);
211 return ERR_PTR(-ENOMEM);
215 for (i = MTHCA_MTT_SEG_SIZE / 8; i < size; i <<= 1)
218 mtt->first_seg = mthca_alloc_mtt_range(dev, mtt->order, buddy);
219 if (mtt->first_seg == -1) {
221 return ERR_PTR(-ENOMEM);
227 struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size)
229 return __mthca_alloc_mtt(dev, size, &dev->mr_table.mtt_buddy);
232 void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt)
237 mthca_buddy_free(mtt->buddy, mtt->first_seg, mtt->order);
239 mthca_table_put_range(dev, dev->mr_table.mtt_table,
241 mtt->first_seg + (1 << mtt->order) - 1);
246 int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
247 int start_index, u64 *buffer_list, int list_len)
249 struct mthca_mailbox *mailbox;
255 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
257 return PTR_ERR(mailbox);
258 mtt_entry = mailbox->buf;
260 while (list_len > 0) {
261 mtt_entry[0] = cpu_to_be64(dev->mr_table.mtt_base +
262 mtt->first_seg * MTHCA_MTT_SEG_SIZE +
265 for (i = 0; i < list_len && i < MTHCA_MAILBOX_SIZE / 8 - 2; ++i)
266 mtt_entry[i + 2] = cpu_to_be64(buffer_list[i] |
267 MTHCA_MTT_FLAG_PRESENT);
270 * If we have an odd number of entries to write, add
271 * one more dummy entry for firmware efficiency.
274 mtt_entry[i + 2] = 0;
276 err = mthca_WRITE_MTT(dev, mailbox, (i + 1) & ~1, &status);
278 mthca_warn(dev, "WRITE_MTT failed (%d)\n", err);
282 mthca_warn(dev, "WRITE_MTT returned status 0x%02x\n",
294 mthca_free_mailbox(dev, mailbox);
298 static inline u32 tavor_hw_index_to_key(u32 ind)
303 static inline u32 tavor_key_to_hw_index(u32 key)
308 static inline u32 arbel_hw_index_to_key(u32 ind)
310 return (ind >> 24) | (ind << 8);
313 static inline u32 arbel_key_to_hw_index(u32 key)
315 return (key << 24) | (key >> 8);
318 static inline u32 hw_index_to_key(struct mthca_dev *dev, u32 ind)
320 if (mthca_is_memfree(dev))
321 return arbel_hw_index_to_key(ind);
323 return tavor_hw_index_to_key(ind);
326 static inline u32 key_to_hw_index(struct mthca_dev *dev, u32 key)
328 if (mthca_is_memfree(dev))
329 return arbel_key_to_hw_index(key);
331 return tavor_key_to_hw_index(key);
334 int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
335 u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
337 struct mthca_mailbox *mailbox;
338 struct mthca_mpt_entry *mpt_entry;
346 WARN_ON(buffer_size_shift >= 32);
348 key = mthca_alloc(&dev->mr_table.mpt_alloc);
351 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
353 if (mthca_is_memfree(dev)) {
354 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
356 goto err_out_mpt_free;
359 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
360 if (IS_ERR(mailbox)) {
361 err = PTR_ERR(mailbox);
364 mpt_entry = mailbox->buf;
366 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
368 MTHCA_MPT_FLAG_REGION |
371 mpt_entry->flags |= cpu_to_be32(MTHCA_MPT_FLAG_PHYSICAL);
373 mpt_entry->page_size = cpu_to_be32(buffer_size_shift - 12);
374 mpt_entry->key = cpu_to_be32(key);
375 mpt_entry->pd = cpu_to_be32(pd);
376 mpt_entry->start = cpu_to_be64(iova);
377 mpt_entry->length = cpu_to_be64(total_size);
379 memset(&mpt_entry->lkey, 0,
380 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, lkey));
384 cpu_to_be64(dev->mr_table.mtt_base +
385 mr->mtt->first_seg * MTHCA_MTT_SEG_SIZE);
388 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
389 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
391 printk("[%02x] ", i * 4);
392 printk(" %08x", be32_to_cpu(((u32 *) mpt_entry)[i]));
393 if ((i + 1) % 4 == 0)
398 err = mthca_SW2HW_MPT(dev, mailbox,
399 key & (dev->limits.num_mpts - 1),
402 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
403 goto err_out_mailbox;
405 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
408 goto err_out_mailbox;
411 mthca_free_mailbox(dev, mailbox);
415 mthca_free_mailbox(dev, mailbox);
418 mthca_table_put(dev, dev->mr_table.mpt_table, key);
421 mthca_free(&dev->mr_table.mpt_alloc, key);
425 int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
426 u32 access, struct mthca_mr *mr)
429 return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
432 int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
433 u64 *buffer_list, int buffer_size_shift,
434 int list_len, u64 iova, u64 total_size,
435 u32 access, struct mthca_mr *mr)
439 mr->mtt = mthca_alloc_mtt(dev, list_len);
441 return PTR_ERR(mr->mtt);
443 err = mthca_write_mtt(dev, mr->mtt, 0, buffer_list, list_len);
445 mthca_free_mtt(dev, mr->mtt);
449 err = mthca_mr_alloc(dev, pd, buffer_size_shift, iova,
450 total_size, access, mr);
452 mthca_free_mtt(dev, mr->mtt);
458 static void mthca_free_region(struct mthca_dev *dev, u32 lkey)
460 mthca_table_put(dev, dev->mr_table.mpt_table,
461 arbel_key_to_hw_index(lkey));
463 mthca_free(&dev->mr_table.mpt_alloc, key_to_hw_index(dev, lkey));
466 void mthca_free_mr(struct mthca_dev *dev, struct mthca_mr *mr)
473 err = mthca_HW2SW_MPT(dev, NULL,
474 key_to_hw_index(dev, mr->ibmr.lkey) &
475 (dev->limits.num_mpts - 1),
478 mthca_warn(dev, "HW2SW_MPT failed (%d)\n", err);
480 mthca_warn(dev, "HW2SW_MPT returned status 0x%02x\n",
483 mthca_free_region(dev, mr->ibmr.lkey);
484 mthca_free_mtt(dev, mr->mtt);
487 int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
488 u32 access, struct mthca_fmr *mr)
490 struct mthca_mpt_entry *mpt_entry;
491 struct mthca_mailbox *mailbox;
495 int list_len = mr->attr.max_pages;
501 if (mr->attr.page_size < 12 || mr->attr.page_size >= 32)
504 /* For Arbel, all MTTs must fit in the same page. */
505 if (mthca_is_memfree(dev) &&
506 mr->attr.max_pages * sizeof *mr->mem.arbel.mtts > PAGE_SIZE)
511 key = mthca_alloc(&dev->mr_table.mpt_alloc);
515 idx = key & (dev->limits.num_mpts - 1);
516 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
518 if (mthca_is_memfree(dev)) {
519 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
521 goto err_out_mpt_free;
523 mr->mem.arbel.mpt = mthca_table_find(dev->mr_table.mpt_table, key);
524 BUG_ON(!mr->mem.arbel.mpt);
526 mr->mem.tavor.mpt = dev->mr_table.tavor_fmr.mpt_base +
527 sizeof *(mr->mem.tavor.mpt) * idx;
529 mr->mtt = __mthca_alloc_mtt(dev, list_len, dev->mr_table.fmr_mtt_buddy);
533 mtt_seg = mr->mtt->first_seg * MTHCA_MTT_SEG_SIZE;
535 if (mthca_is_memfree(dev)) {
536 mr->mem.arbel.mtts = mthca_table_find(dev->mr_table.mtt_table,
538 BUG_ON(!mr->mem.arbel.mtts);
540 mr->mem.tavor.mtts = dev->mr_table.tavor_fmr.mtt_base + mtt_seg;
542 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
544 goto err_out_free_mtt;
546 mpt_entry = mailbox->buf;
548 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
550 MTHCA_MPT_FLAG_REGION |
553 mpt_entry->page_size = cpu_to_be32(mr->attr.page_size - 12);
554 mpt_entry->key = cpu_to_be32(key);
555 mpt_entry->pd = cpu_to_be32(pd);
556 memset(&mpt_entry->start, 0,
557 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, start));
558 mpt_entry->mtt_seg = cpu_to_be64(dev->mr_table.mtt_base + mtt_seg);
561 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
562 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
564 printk("[%02x] ", i * 4);
565 printk(" %08x", be32_to_cpu(((u32 *) mpt_entry)[i]));
566 if ((i + 1) % 4 == 0)
571 err = mthca_SW2HW_MPT(dev, mailbox,
572 key & (dev->limits.num_mpts - 1),
575 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
576 goto err_out_mailbox_free;
579 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
582 goto err_out_mailbox_free;
585 mthca_free_mailbox(dev, mailbox);
588 err_out_mailbox_free:
589 mthca_free_mailbox(dev, mailbox);
592 mthca_free_mtt(dev, mr->mtt);
595 mthca_table_put(dev, dev->mr_table.mpt_table, key);
598 mthca_free(&dev->mr_table.mpt_alloc, mr->ibmr.lkey);
602 int mthca_free_fmr(struct mthca_dev *dev, struct mthca_fmr *fmr)
607 mthca_free_region(dev, fmr->ibmr.lkey);
608 mthca_free_mtt(dev, fmr->mtt);
613 static inline int mthca_check_fmr(struct mthca_fmr *fmr, u64 *page_list,
614 int list_len, u64 iova)
618 if (list_len > fmr->attr.max_pages)
621 page_mask = (1 << fmr->attr.page_size) - 1;
623 /* We are getting page lists, so va must be page aligned. */
624 if (iova & page_mask)
627 /* Trust the user not to pass misaligned data in page_list */
629 for (i = 0; i < list_len; ++i) {
630 if (page_list[i] & ~page_mask)
634 if (fmr->maps >= fmr->attr.max_maps)
641 int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
642 int list_len, u64 iova)
644 struct mthca_fmr *fmr = to_mfmr(ibfmr);
645 struct mthca_dev *dev = to_mdev(ibfmr->device);
646 struct mthca_mpt_entry mpt_entry;
650 err = mthca_check_fmr(fmr, page_list, list_len, iova);
656 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
657 key += dev->limits.num_mpts;
658 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
660 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
662 for (i = 0; i < list_len; ++i) {
663 __be64 mtt_entry = cpu_to_be64(page_list[i] |
664 MTHCA_MTT_FLAG_PRESENT);
665 mthca_write64_raw(mtt_entry, fmr->mem.tavor.mtts + i);
668 mpt_entry.lkey = cpu_to_be32(key);
669 mpt_entry.length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
670 mpt_entry.start = cpu_to_be64(iova);
672 writel(mpt_entry.lkey, &fmr->mem.tavor.mpt->key);
673 memcpy_toio(&fmr->mem.tavor.mpt->start, &mpt_entry.start,
674 offsetof(struct mthca_mpt_entry, window_count) -
675 offsetof(struct mthca_mpt_entry, start));
677 writeb(MTHCA_MPT_STATUS_HW, fmr->mem.tavor.mpt);
682 int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
683 int list_len, u64 iova)
685 struct mthca_fmr *fmr = to_mfmr(ibfmr);
686 struct mthca_dev *dev = to_mdev(ibfmr->device);
690 err = mthca_check_fmr(fmr, page_list, list_len, iova);
696 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
697 key += dev->limits.num_mpts;
698 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
700 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
704 for (i = 0; i < list_len; ++i)
705 fmr->mem.arbel.mtts[i] = cpu_to_be64(page_list[i] |
706 MTHCA_MTT_FLAG_PRESENT);
708 fmr->mem.arbel.mpt->key = cpu_to_be32(key);
709 fmr->mem.arbel.mpt->lkey = cpu_to_be32(key);
710 fmr->mem.arbel.mpt->length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
711 fmr->mem.arbel.mpt->start = cpu_to_be64(iova);
715 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_HW;
722 void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
729 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
730 key &= dev->limits.num_mpts - 1;
731 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
735 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
738 void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
745 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
746 key &= dev->limits.num_mpts - 1;
747 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
751 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
754 int __devinit mthca_init_mr_table(struct mthca_dev *dev)
758 err = mthca_alloc_init(&dev->mr_table.mpt_alloc,
759 dev->limits.num_mpts,
760 ~0, dev->limits.reserved_mrws);
764 if (!mthca_is_memfree(dev) &&
765 (dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN))
766 dev->limits.fmr_reserved_mtts = 0;
768 dev->mthca_flags |= MTHCA_FLAG_FMR;
770 err = mthca_buddy_init(&dev->mr_table.mtt_buddy,
771 fls(dev->limits.num_mtt_segs - 1));
776 dev->mr_table.tavor_fmr.mpt_base = NULL;
777 dev->mr_table.tavor_fmr.mtt_base = NULL;
779 if (dev->limits.fmr_reserved_mtts) {
780 i = fls(dev->limits.fmr_reserved_mtts - 1);
783 mthca_warn(dev, "Unable to reserve 2^31 FMR MTTs.\n");
788 dev->mr_table.tavor_fmr.mpt_base =
789 ioremap(dev->mr_table.mpt_base,
790 (1 << i) * sizeof (struct mthca_mpt_entry));
792 if (!dev->mr_table.tavor_fmr.mpt_base) {
793 mthca_warn(dev, "MPT ioremap for FMR failed.\n");
798 dev->mr_table.tavor_fmr.mtt_base =
799 ioremap(dev->mr_table.mtt_base,
800 (1 << i) * MTHCA_MTT_SEG_SIZE);
801 if (!dev->mr_table.tavor_fmr.mtt_base) {
802 mthca_warn(dev, "MTT ioremap for FMR failed.\n");
807 err = mthca_buddy_init(&dev->mr_table.tavor_fmr.mtt_buddy, i);
809 goto err_fmr_mtt_buddy;
811 /* Prevent regular MRs from using FMR keys */
812 err = mthca_buddy_alloc(&dev->mr_table.mtt_buddy, i);
814 goto err_reserve_fmr;
816 dev->mr_table.fmr_mtt_buddy =
817 &dev->mr_table.tavor_fmr.mtt_buddy;
819 dev->mr_table.fmr_mtt_buddy = &dev->mr_table.mtt_buddy;
821 /* FMR table is always the first, take reserved MTTs out of there */
822 if (dev->limits.reserved_mtts) {
823 i = fls(dev->limits.reserved_mtts - 1);
825 if (mthca_alloc_mtt_range(dev, i,
826 dev->mr_table.fmr_mtt_buddy) == -1) {
827 mthca_warn(dev, "MTT table of order %d is too small.\n",
828 dev->mr_table.fmr_mtt_buddy->max_order);
830 goto err_reserve_mtts;
838 if (dev->limits.fmr_reserved_mtts)
839 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
842 if (dev->mr_table.tavor_fmr.mtt_base)
843 iounmap(dev->mr_table.tavor_fmr.mtt_base);
846 if (dev->mr_table.tavor_fmr.mpt_base)
847 iounmap(dev->mr_table.tavor_fmr.mpt_base);
850 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
853 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);
858 void __devexit mthca_cleanup_mr_table(struct mthca_dev *dev)
860 /* XXX check if any MRs are still allocated? */
861 if (dev->limits.fmr_reserved_mtts)
862 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
864 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
866 if (dev->mr_table.tavor_fmr.mtt_base)
867 iounmap(dev->mr_table.tavor_fmr.mtt_base);
868 if (dev->mr_table.tavor_fmr.mpt_base)
869 iounmap(dev->mr_table.tavor_fmr.mpt_base);
871 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);