2 * Copyright (c) 2004 Topspin Communications. All rights reserved.
3 * Copyright (c) 2005 Mellanox Technologies. All rights reserved.
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:
11 * Redistribution and use in source and binary forms, with or
12 * without modification, are permitted provided that the following
15 * - Redistributions of source code must retain the above
16 * copyright notice, this list of conditions and the following
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.
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
33 * $Id: mthca_mr.c 1349 2004-12-16 21:09:43Z roland $
36 #include <linux/slab.h>
37 #include <linux/init.h>
38 #include <linux/errno.h>
40 #include "mthca_dev.h"
41 #include "mthca_cmd.h"
42 #include "mthca_memfree.h"
45 struct mthca_buddy *buddy;
51 * Must be packed because mtt_seg is 64 bits but only aligned to 32 bits.
53 struct mthca_mpt_entry {
62 __be32 window_count_limit;
64 __be32 mtt_sz; /* Arbel only */
66 } __attribute__((packed));
68 #define MTHCA_MPT_FLAG_SW_OWNS (0xfUL << 28)
69 #define MTHCA_MPT_FLAG_MIO (1 << 17)
70 #define MTHCA_MPT_FLAG_BIND_ENABLE (1 << 15)
71 #define MTHCA_MPT_FLAG_PHYSICAL (1 << 9)
72 #define MTHCA_MPT_FLAG_REGION (1 << 8)
74 #define MTHCA_MTT_FLAG_PRESENT 1
76 #define MTHCA_MPT_STATUS_SW 0xF0
77 #define MTHCA_MPT_STATUS_HW 0x00
80 * Buddy allocator for MTT segments (currently not very efficient
81 * since it doesn't keep a free list and just searches linearly
82 * through the bitmaps)
85 static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
91 spin_lock(&buddy->lock);
93 for (o = order; o <= buddy->max_order; ++o) {
94 m = 1 << (buddy->max_order - o);
95 seg = find_first_bit(buddy->bits[o], m);
100 spin_unlock(&buddy->lock);
104 clear_bit(seg, buddy->bits[o]);
109 set_bit(seg ^ 1, buddy->bits[o]);
112 spin_unlock(&buddy->lock);
119 static void mthca_buddy_free(struct mthca_buddy *buddy, u32 seg, int order)
123 spin_lock(&buddy->lock);
125 while (test_bit(seg ^ 1, buddy->bits[order])) {
126 clear_bit(seg ^ 1, buddy->bits[order]);
131 set_bit(seg, buddy->bits[order]);
133 spin_unlock(&buddy->lock);
136 static int __devinit mthca_buddy_init(struct mthca_buddy *buddy, int max_order)
140 buddy->max_order = max_order;
141 spin_lock_init(&buddy->lock);
143 buddy->bits = kzalloc((buddy->max_order + 1) * sizeof (long *),
148 for (i = 0; i <= buddy->max_order; ++i) {
149 s = BITS_TO_LONGS(1 << (buddy->max_order - i));
150 buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
153 bitmap_zero(buddy->bits[i],
154 1 << (buddy->max_order - i));
157 set_bit(0, buddy->bits[buddy->max_order]);
162 for (i = 0; i <= buddy->max_order; ++i)
163 kfree(buddy->bits[i]);
171 static void __devexit mthca_buddy_cleanup(struct mthca_buddy *buddy)
175 for (i = 0; i <= buddy->max_order; ++i)
176 kfree(buddy->bits[i]);
181 static u32 mthca_alloc_mtt_range(struct mthca_dev *dev, int order,
182 struct mthca_buddy *buddy)
184 u32 seg = mthca_buddy_alloc(buddy, order);
189 if (mthca_is_memfree(dev))
190 if (mthca_table_get_range(dev, dev->mr_table.mtt_table, seg,
191 seg + (1 << order) - 1)) {
192 mthca_buddy_free(buddy, seg, order);
199 static struct mthca_mtt *__mthca_alloc_mtt(struct mthca_dev *dev, int size,
200 struct mthca_buddy *buddy)
202 struct mthca_mtt *mtt;
206 return ERR_PTR(-EINVAL);
208 mtt = kmalloc(sizeof *mtt, GFP_KERNEL);
210 return ERR_PTR(-ENOMEM);
214 for (i = MTHCA_MTT_SEG_SIZE / 8; i < size; i <<= 1)
217 mtt->first_seg = mthca_alloc_mtt_range(dev, mtt->order, buddy);
218 if (mtt->first_seg == -1) {
220 return ERR_PTR(-ENOMEM);
226 struct mthca_mtt *mthca_alloc_mtt(struct mthca_dev *dev, int size)
228 return __mthca_alloc_mtt(dev, size, &dev->mr_table.mtt_buddy);
231 void mthca_free_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt)
236 mthca_buddy_free(mtt->buddy, mtt->first_seg, mtt->order);
238 mthca_table_put_range(dev, dev->mr_table.mtt_table,
240 mtt->first_seg + (1 << mtt->order) - 1);
245 int mthca_write_mtt(struct mthca_dev *dev, struct mthca_mtt *mtt,
246 int start_index, u64 *buffer_list, int list_len)
248 struct mthca_mailbox *mailbox;
254 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
256 return PTR_ERR(mailbox);
257 mtt_entry = mailbox->buf;
259 while (list_len > 0) {
260 mtt_entry[0] = cpu_to_be64(dev->mr_table.mtt_base +
261 mtt->first_seg * MTHCA_MTT_SEG_SIZE +
264 for (i = 0; i < list_len && i < MTHCA_MAILBOX_SIZE / 8 - 2; ++i)
265 mtt_entry[i + 2] = cpu_to_be64(buffer_list[i] |
266 MTHCA_MTT_FLAG_PRESENT);
269 * If we have an odd number of entries to write, add
270 * one more dummy entry for firmware efficiency.
273 mtt_entry[i + 2] = 0;
275 err = mthca_WRITE_MTT(dev, mailbox, (i + 1) & ~1, &status);
277 mthca_warn(dev, "WRITE_MTT failed (%d)\n", err);
281 mthca_warn(dev, "WRITE_MTT returned status 0x%02x\n",
293 mthca_free_mailbox(dev, mailbox);
297 static inline u32 tavor_hw_index_to_key(u32 ind)
302 static inline u32 tavor_key_to_hw_index(u32 key)
307 static inline u32 arbel_hw_index_to_key(u32 ind)
309 return (ind >> 24) | (ind << 8);
312 static inline u32 arbel_key_to_hw_index(u32 key)
314 return (key << 24) | (key >> 8);
317 static inline u32 hw_index_to_key(struct mthca_dev *dev, u32 ind)
319 if (mthca_is_memfree(dev))
320 return arbel_hw_index_to_key(ind);
322 return tavor_hw_index_to_key(ind);
325 static inline u32 key_to_hw_index(struct mthca_dev *dev, u32 key)
327 if (mthca_is_memfree(dev))
328 return arbel_key_to_hw_index(key);
330 return tavor_key_to_hw_index(key);
333 int mthca_mr_alloc(struct mthca_dev *dev, u32 pd, int buffer_size_shift,
334 u64 iova, u64 total_size, u32 access, struct mthca_mr *mr)
336 struct mthca_mailbox *mailbox;
337 struct mthca_mpt_entry *mpt_entry;
345 WARN_ON(buffer_size_shift >= 32);
347 key = mthca_alloc(&dev->mr_table.mpt_alloc);
350 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
352 if (mthca_is_memfree(dev)) {
353 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
355 goto err_out_mpt_free;
358 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
359 if (IS_ERR(mailbox)) {
360 err = PTR_ERR(mailbox);
363 mpt_entry = mailbox->buf;
365 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
367 MTHCA_MPT_FLAG_REGION |
370 mpt_entry->flags |= cpu_to_be32(MTHCA_MPT_FLAG_PHYSICAL);
372 mpt_entry->page_size = cpu_to_be32(buffer_size_shift - 12);
373 mpt_entry->key = cpu_to_be32(key);
374 mpt_entry->pd = cpu_to_be32(pd);
375 mpt_entry->start = cpu_to_be64(iova);
376 mpt_entry->length = cpu_to_be64(total_size);
378 memset(&mpt_entry->lkey, 0,
379 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, lkey));
383 cpu_to_be64(dev->mr_table.mtt_base +
384 mr->mtt->first_seg * MTHCA_MTT_SEG_SIZE);
387 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
388 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
390 printk("[%02x] ", i * 4);
391 printk(" %08x", be32_to_cpu(((__be32 *) mpt_entry)[i]));
392 if ((i + 1) % 4 == 0)
397 err = mthca_SW2HW_MPT(dev, mailbox,
398 key & (dev->limits.num_mpts - 1),
401 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
402 goto err_out_mailbox;
404 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
407 goto err_out_mailbox;
410 mthca_free_mailbox(dev, mailbox);
414 mthca_free_mailbox(dev, mailbox);
417 mthca_table_put(dev, dev->mr_table.mpt_table, key);
420 mthca_free(&dev->mr_table.mpt_alloc, key);
424 int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
425 u32 access, struct mthca_mr *mr)
428 return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
431 int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
432 u64 *buffer_list, int buffer_size_shift,
433 int list_len, u64 iova, u64 total_size,
434 u32 access, struct mthca_mr *mr)
438 mr->mtt = mthca_alloc_mtt(dev, list_len);
440 return PTR_ERR(mr->mtt);
442 err = mthca_write_mtt(dev, mr->mtt, 0, buffer_list, list_len);
444 mthca_free_mtt(dev, mr->mtt);
448 err = mthca_mr_alloc(dev, pd, buffer_size_shift, iova,
449 total_size, access, mr);
451 mthca_free_mtt(dev, mr->mtt);
457 static void mthca_free_region(struct mthca_dev *dev, u32 lkey)
459 mthca_table_put(dev, dev->mr_table.mpt_table,
460 key_to_hw_index(dev, lkey));
462 mthca_free(&dev->mr_table.mpt_alloc, key_to_hw_index(dev, lkey));
465 void mthca_free_mr(struct mthca_dev *dev, struct mthca_mr *mr)
472 err = mthca_HW2SW_MPT(dev, NULL,
473 key_to_hw_index(dev, mr->ibmr.lkey) &
474 (dev->limits.num_mpts - 1),
477 mthca_warn(dev, "HW2SW_MPT failed (%d)\n", err);
479 mthca_warn(dev, "HW2SW_MPT returned status 0x%02x\n",
482 mthca_free_region(dev, mr->ibmr.lkey);
483 mthca_free_mtt(dev, mr->mtt);
486 int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
487 u32 access, struct mthca_fmr *mr)
489 struct mthca_mpt_entry *mpt_entry;
490 struct mthca_mailbox *mailbox;
494 int list_len = mr->attr.max_pages;
500 if (mr->attr.page_size < 12 || mr->attr.page_size >= 32)
503 /* For Arbel, all MTTs must fit in the same page. */
504 if (mthca_is_memfree(dev) &&
505 mr->attr.max_pages * sizeof *mr->mem.arbel.mtts > PAGE_SIZE)
510 key = mthca_alloc(&dev->mr_table.mpt_alloc);
514 idx = key & (dev->limits.num_mpts - 1);
515 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
517 if (mthca_is_memfree(dev)) {
518 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
520 goto err_out_mpt_free;
522 mr->mem.arbel.mpt = mthca_table_find(dev->mr_table.mpt_table, key);
523 BUG_ON(!mr->mem.arbel.mpt);
525 mr->mem.tavor.mpt = dev->mr_table.tavor_fmr.mpt_base +
526 sizeof *(mr->mem.tavor.mpt) * idx;
528 mr->mtt = __mthca_alloc_mtt(dev, list_len, dev->mr_table.fmr_mtt_buddy);
532 mtt_seg = mr->mtt->first_seg * MTHCA_MTT_SEG_SIZE;
534 if (mthca_is_memfree(dev)) {
535 mr->mem.arbel.mtts = mthca_table_find(dev->mr_table.mtt_table,
537 BUG_ON(!mr->mem.arbel.mtts);
539 mr->mem.tavor.mtts = dev->mr_table.tavor_fmr.mtt_base + mtt_seg;
541 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
543 goto err_out_free_mtt;
545 mpt_entry = mailbox->buf;
547 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
549 MTHCA_MPT_FLAG_REGION |
552 mpt_entry->page_size = cpu_to_be32(mr->attr.page_size - 12);
553 mpt_entry->key = cpu_to_be32(key);
554 mpt_entry->pd = cpu_to_be32(pd);
555 memset(&mpt_entry->start, 0,
556 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, start));
557 mpt_entry->mtt_seg = cpu_to_be64(dev->mr_table.mtt_base + mtt_seg);
560 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
561 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
563 printk("[%02x] ", i * 4);
564 printk(" %08x", be32_to_cpu(((__be32 *) mpt_entry)[i]));
565 if ((i + 1) % 4 == 0)
570 err = mthca_SW2HW_MPT(dev, mailbox,
571 key & (dev->limits.num_mpts - 1),
574 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
575 goto err_out_mailbox_free;
578 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
581 goto err_out_mailbox_free;
584 mthca_free_mailbox(dev, mailbox);
587 err_out_mailbox_free:
588 mthca_free_mailbox(dev, mailbox);
591 mthca_free_mtt(dev, mr->mtt);
594 mthca_table_put(dev, dev->mr_table.mpt_table, key);
597 mthca_free(&dev->mr_table.mpt_alloc, mr->ibmr.lkey);
601 int mthca_free_fmr(struct mthca_dev *dev, struct mthca_fmr *fmr)
606 mthca_free_region(dev, fmr->ibmr.lkey);
607 mthca_free_mtt(dev, fmr->mtt);
612 static inline int mthca_check_fmr(struct mthca_fmr *fmr, u64 *page_list,
613 int list_len, u64 iova)
617 if (list_len > fmr->attr.max_pages)
620 page_mask = (1 << fmr->attr.page_size) - 1;
622 /* We are getting page lists, so va must be page aligned. */
623 if (iova & page_mask)
626 /* Trust the user not to pass misaligned data in page_list */
628 for (i = 0; i < list_len; ++i) {
629 if (page_list[i] & ~page_mask)
633 if (fmr->maps >= fmr->attr.max_maps)
640 int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
641 int list_len, u64 iova)
643 struct mthca_fmr *fmr = to_mfmr(ibfmr);
644 struct mthca_dev *dev = to_mdev(ibfmr->device);
645 struct mthca_mpt_entry mpt_entry;
649 err = mthca_check_fmr(fmr, page_list, list_len, iova);
655 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
656 key += dev->limits.num_mpts;
657 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
659 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
661 for (i = 0; i < list_len; ++i) {
662 __be64 mtt_entry = cpu_to_be64(page_list[i] |
663 MTHCA_MTT_FLAG_PRESENT);
664 mthca_write64_raw(mtt_entry, fmr->mem.tavor.mtts + i);
667 mpt_entry.lkey = cpu_to_be32(key);
668 mpt_entry.length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
669 mpt_entry.start = cpu_to_be64(iova);
671 __raw_writel((__force u32) mpt_entry.lkey, &fmr->mem.tavor.mpt->key);
672 memcpy_toio(&fmr->mem.tavor.mpt->start, &mpt_entry.start,
673 offsetof(struct mthca_mpt_entry, window_count) -
674 offsetof(struct mthca_mpt_entry, start));
676 writeb(MTHCA_MPT_STATUS_HW, fmr->mem.tavor.mpt);
681 int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
682 int list_len, u64 iova)
684 struct mthca_fmr *fmr = to_mfmr(ibfmr);
685 struct mthca_dev *dev = to_mdev(ibfmr->device);
689 err = mthca_check_fmr(fmr, page_list, list_len, iova);
695 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
696 key += dev->limits.num_mpts;
697 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
699 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
703 for (i = 0; i < list_len; ++i)
704 fmr->mem.arbel.mtts[i] = cpu_to_be64(page_list[i] |
705 MTHCA_MTT_FLAG_PRESENT);
707 fmr->mem.arbel.mpt->key = cpu_to_be32(key);
708 fmr->mem.arbel.mpt->lkey = cpu_to_be32(key);
709 fmr->mem.arbel.mpt->length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
710 fmr->mem.arbel.mpt->start = cpu_to_be64(iova);
714 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_HW;
721 void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
728 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
729 key &= dev->limits.num_mpts - 1;
730 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
734 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
737 void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
744 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
745 key &= dev->limits.num_mpts - 1;
746 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
750 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
753 int __devinit mthca_init_mr_table(struct mthca_dev *dev)
757 err = mthca_alloc_init(&dev->mr_table.mpt_alloc,
758 dev->limits.num_mpts,
759 ~0, dev->limits.reserved_mrws);
763 if (!mthca_is_memfree(dev) &&
764 (dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN))
765 dev->limits.fmr_reserved_mtts = 0;
767 dev->mthca_flags |= MTHCA_FLAG_FMR;
769 err = mthca_buddy_init(&dev->mr_table.mtt_buddy,
770 fls(dev->limits.num_mtt_segs - 1));
775 dev->mr_table.tavor_fmr.mpt_base = NULL;
776 dev->mr_table.tavor_fmr.mtt_base = NULL;
778 if (dev->limits.fmr_reserved_mtts) {
779 i = fls(dev->limits.fmr_reserved_mtts - 1);
782 mthca_warn(dev, "Unable to reserve 2^31 FMR MTTs.\n");
787 dev->mr_table.tavor_fmr.mpt_base =
788 ioremap(dev->mr_table.mpt_base,
789 (1 << i) * sizeof (struct mthca_mpt_entry));
791 if (!dev->mr_table.tavor_fmr.mpt_base) {
792 mthca_warn(dev, "MPT ioremap for FMR failed.\n");
797 dev->mr_table.tavor_fmr.mtt_base =
798 ioremap(dev->mr_table.mtt_base,
799 (1 << i) * MTHCA_MTT_SEG_SIZE);
800 if (!dev->mr_table.tavor_fmr.mtt_base) {
801 mthca_warn(dev, "MTT ioremap for FMR failed.\n");
806 err = mthca_buddy_init(&dev->mr_table.tavor_fmr.mtt_buddy, i);
808 goto err_fmr_mtt_buddy;
810 /* Prevent regular MRs from using FMR keys */
811 err = mthca_buddy_alloc(&dev->mr_table.mtt_buddy, i);
813 goto err_reserve_fmr;
815 dev->mr_table.fmr_mtt_buddy =
816 &dev->mr_table.tavor_fmr.mtt_buddy;
818 dev->mr_table.fmr_mtt_buddy = &dev->mr_table.mtt_buddy;
820 /* FMR table is always the first, take reserved MTTs out of there */
821 if (dev->limits.reserved_mtts) {
822 i = fls(dev->limits.reserved_mtts - 1);
824 if (mthca_alloc_mtt_range(dev, i,
825 dev->mr_table.fmr_mtt_buddy) == -1) {
826 mthca_warn(dev, "MTT table of order %d is too small.\n",
827 dev->mr_table.fmr_mtt_buddy->max_order);
829 goto err_reserve_mtts;
837 if (dev->limits.fmr_reserved_mtts)
838 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
841 if (dev->mr_table.tavor_fmr.mtt_base)
842 iounmap(dev->mr_table.tavor_fmr.mtt_base);
845 if (dev->mr_table.tavor_fmr.mpt_base)
846 iounmap(dev->mr_table.tavor_fmr.mpt_base);
849 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
852 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);
857 void __devexit mthca_cleanup_mr_table(struct mthca_dev *dev)
859 /* XXX check if any MRs are still allocated? */
860 if (dev->limits.fmr_reserved_mtts)
861 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
863 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
865 if (dev->mr_table.tavor_fmr.mtt_base)
866 iounmap(dev->mr_table.tavor_fmr.mtt_base);
867 if (dev->mr_table.tavor_fmr.mpt_base)
868 iounmap(dev->mr_table.tavor_fmr.mpt_base);
870 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);