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;
343 WARN_ON(buffer_size_shift >= 32);
345 key = mthca_alloc(&dev->mr_table.mpt_alloc);
348 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
350 if (mthca_is_memfree(dev)) {
351 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
353 goto err_out_mpt_free;
356 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
357 if (IS_ERR(mailbox)) {
358 err = PTR_ERR(mailbox);
361 mpt_entry = mailbox->buf;
363 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
365 MTHCA_MPT_FLAG_REGION |
368 mpt_entry->flags |= cpu_to_be32(MTHCA_MPT_FLAG_PHYSICAL);
370 mpt_entry->page_size = cpu_to_be32(buffer_size_shift - 12);
371 mpt_entry->key = cpu_to_be32(key);
372 mpt_entry->pd = cpu_to_be32(pd);
373 mpt_entry->start = cpu_to_be64(iova);
374 mpt_entry->length = cpu_to_be64(total_size);
376 memset(&mpt_entry->lkey, 0,
377 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, lkey));
381 cpu_to_be64(dev->mr_table.mtt_base +
382 mr->mtt->first_seg * MTHCA_MTT_SEG_SIZE);
385 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
386 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
388 printk("[%02x] ", i * 4);
389 printk(" %08x", be32_to_cpu(((__be32 *) mpt_entry)[i]));
390 if ((i + 1) % 4 == 0)
395 err = mthca_SW2HW_MPT(dev, mailbox,
396 key & (dev->limits.num_mpts - 1),
399 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
400 goto err_out_mailbox;
402 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
405 goto err_out_mailbox;
408 mthca_free_mailbox(dev, mailbox);
412 mthca_free_mailbox(dev, mailbox);
415 mthca_table_put(dev, dev->mr_table.mpt_table, key);
418 mthca_free(&dev->mr_table.mpt_alloc, key);
422 int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
423 u32 access, struct mthca_mr *mr)
426 return mthca_mr_alloc(dev, pd, 12, 0, ~0ULL, access, mr);
429 int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
430 u64 *buffer_list, int buffer_size_shift,
431 int list_len, u64 iova, u64 total_size,
432 u32 access, struct mthca_mr *mr)
436 mr->mtt = mthca_alloc_mtt(dev, list_len);
438 return PTR_ERR(mr->mtt);
440 err = mthca_write_mtt(dev, mr->mtt, 0, buffer_list, list_len);
442 mthca_free_mtt(dev, mr->mtt);
446 err = mthca_mr_alloc(dev, pd, buffer_size_shift, iova,
447 total_size, access, mr);
449 mthca_free_mtt(dev, mr->mtt);
455 static void mthca_free_region(struct mthca_dev *dev, u32 lkey)
457 mthca_table_put(dev, dev->mr_table.mpt_table,
458 key_to_hw_index(dev, lkey));
460 mthca_free(&dev->mr_table.mpt_alloc, key_to_hw_index(dev, lkey));
463 void mthca_free_mr(struct mthca_dev *dev, struct mthca_mr *mr)
468 err = mthca_HW2SW_MPT(dev, NULL,
469 key_to_hw_index(dev, mr->ibmr.lkey) &
470 (dev->limits.num_mpts - 1),
473 mthca_warn(dev, "HW2SW_MPT failed (%d)\n", err);
475 mthca_warn(dev, "HW2SW_MPT returned status 0x%02x\n",
478 mthca_free_region(dev, mr->ibmr.lkey);
479 mthca_free_mtt(dev, mr->mtt);
482 int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
483 u32 access, struct mthca_fmr *mr)
485 struct mthca_mpt_entry *mpt_entry;
486 struct mthca_mailbox *mailbox;
490 int list_len = mr->attr.max_pages;
494 if (mr->attr.page_size < 12 || mr->attr.page_size >= 32)
497 /* For Arbel, all MTTs must fit in the same page. */
498 if (mthca_is_memfree(dev) &&
499 mr->attr.max_pages * sizeof *mr->mem.arbel.mtts > PAGE_SIZE)
504 key = mthca_alloc(&dev->mr_table.mpt_alloc);
508 idx = key & (dev->limits.num_mpts - 1);
509 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
511 if (mthca_is_memfree(dev)) {
512 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
514 goto err_out_mpt_free;
516 mr->mem.arbel.mpt = mthca_table_find(dev->mr_table.mpt_table, key);
517 BUG_ON(!mr->mem.arbel.mpt);
519 mr->mem.tavor.mpt = dev->mr_table.tavor_fmr.mpt_base +
520 sizeof *(mr->mem.tavor.mpt) * idx;
522 mr->mtt = __mthca_alloc_mtt(dev, list_len, dev->mr_table.fmr_mtt_buddy);
526 mtt_seg = mr->mtt->first_seg * MTHCA_MTT_SEG_SIZE;
528 if (mthca_is_memfree(dev)) {
529 mr->mem.arbel.mtts = mthca_table_find(dev->mr_table.mtt_table,
531 BUG_ON(!mr->mem.arbel.mtts);
533 mr->mem.tavor.mtts = dev->mr_table.tavor_fmr.mtt_base + mtt_seg;
535 mailbox = mthca_alloc_mailbox(dev, GFP_KERNEL);
537 goto err_out_free_mtt;
539 mpt_entry = mailbox->buf;
541 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
543 MTHCA_MPT_FLAG_REGION |
546 mpt_entry->page_size = cpu_to_be32(mr->attr.page_size - 12);
547 mpt_entry->key = cpu_to_be32(key);
548 mpt_entry->pd = cpu_to_be32(pd);
549 memset(&mpt_entry->start, 0,
550 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, start));
551 mpt_entry->mtt_seg = cpu_to_be64(dev->mr_table.mtt_base + mtt_seg);
554 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
555 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
557 printk("[%02x] ", i * 4);
558 printk(" %08x", be32_to_cpu(((__be32 *) mpt_entry)[i]));
559 if ((i + 1) % 4 == 0)
564 err = mthca_SW2HW_MPT(dev, mailbox,
565 key & (dev->limits.num_mpts - 1),
568 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
569 goto err_out_mailbox_free;
572 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
575 goto err_out_mailbox_free;
578 mthca_free_mailbox(dev, mailbox);
581 err_out_mailbox_free:
582 mthca_free_mailbox(dev, mailbox);
585 mthca_free_mtt(dev, mr->mtt);
588 mthca_table_put(dev, dev->mr_table.mpt_table, key);
591 mthca_free(&dev->mr_table.mpt_alloc, mr->ibmr.lkey);
595 int mthca_free_fmr(struct mthca_dev *dev, struct mthca_fmr *fmr)
600 mthca_free_region(dev, fmr->ibmr.lkey);
601 mthca_free_mtt(dev, fmr->mtt);
606 static inline int mthca_check_fmr(struct mthca_fmr *fmr, u64 *page_list,
607 int list_len, u64 iova)
611 if (list_len > fmr->attr.max_pages)
614 page_mask = (1 << fmr->attr.page_size) - 1;
616 /* We are getting page lists, so va must be page aligned. */
617 if (iova & page_mask)
620 /* Trust the user not to pass misaligned data in page_list */
622 for (i = 0; i < list_len; ++i) {
623 if (page_list[i] & ~page_mask)
627 if (fmr->maps >= fmr->attr.max_maps)
634 int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
635 int list_len, u64 iova)
637 struct mthca_fmr *fmr = to_mfmr(ibfmr);
638 struct mthca_dev *dev = to_mdev(ibfmr->device);
639 struct mthca_mpt_entry mpt_entry;
643 err = mthca_check_fmr(fmr, page_list, list_len, iova);
649 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
650 key += dev->limits.num_mpts;
651 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
653 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
655 for (i = 0; i < list_len; ++i) {
656 __be64 mtt_entry = cpu_to_be64(page_list[i] |
657 MTHCA_MTT_FLAG_PRESENT);
658 mthca_write64_raw(mtt_entry, fmr->mem.tavor.mtts + i);
661 mpt_entry.lkey = cpu_to_be32(key);
662 mpt_entry.length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
663 mpt_entry.start = cpu_to_be64(iova);
665 __raw_writel((__force u32) mpt_entry.lkey, &fmr->mem.tavor.mpt->key);
666 memcpy_toio(&fmr->mem.tavor.mpt->start, &mpt_entry.start,
667 offsetof(struct mthca_mpt_entry, window_count) -
668 offsetof(struct mthca_mpt_entry, start));
670 writeb(MTHCA_MPT_STATUS_HW, fmr->mem.tavor.mpt);
675 int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
676 int list_len, u64 iova)
678 struct mthca_fmr *fmr = to_mfmr(ibfmr);
679 struct mthca_dev *dev = to_mdev(ibfmr->device);
683 err = mthca_check_fmr(fmr, page_list, list_len, iova);
689 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
690 key += dev->limits.num_mpts;
691 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
693 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
697 for (i = 0; i < list_len; ++i)
698 fmr->mem.arbel.mtts[i] = cpu_to_be64(page_list[i] |
699 MTHCA_MTT_FLAG_PRESENT);
701 fmr->mem.arbel.mpt->key = cpu_to_be32(key);
702 fmr->mem.arbel.mpt->lkey = cpu_to_be32(key);
703 fmr->mem.arbel.mpt->length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
704 fmr->mem.arbel.mpt->start = cpu_to_be64(iova);
708 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_HW;
715 void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
722 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
723 key &= dev->limits.num_mpts - 1;
724 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
728 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
731 void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
738 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
739 key &= dev->limits.num_mpts - 1;
740 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
744 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
747 int __devinit mthca_init_mr_table(struct mthca_dev *dev)
751 err = mthca_alloc_init(&dev->mr_table.mpt_alloc,
752 dev->limits.num_mpts,
753 ~0, dev->limits.reserved_mrws);
757 if (!mthca_is_memfree(dev) &&
758 (dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN))
759 dev->limits.fmr_reserved_mtts = 0;
761 dev->mthca_flags |= MTHCA_FLAG_FMR;
763 err = mthca_buddy_init(&dev->mr_table.mtt_buddy,
764 fls(dev->limits.num_mtt_segs - 1));
769 dev->mr_table.tavor_fmr.mpt_base = NULL;
770 dev->mr_table.tavor_fmr.mtt_base = NULL;
772 if (dev->limits.fmr_reserved_mtts) {
773 i = fls(dev->limits.fmr_reserved_mtts - 1);
776 mthca_warn(dev, "Unable to reserve 2^31 FMR MTTs.\n");
781 dev->mr_table.tavor_fmr.mpt_base =
782 ioremap(dev->mr_table.mpt_base,
783 (1 << i) * sizeof (struct mthca_mpt_entry));
785 if (!dev->mr_table.tavor_fmr.mpt_base) {
786 mthca_warn(dev, "MPT ioremap for FMR failed.\n");
791 dev->mr_table.tavor_fmr.mtt_base =
792 ioremap(dev->mr_table.mtt_base,
793 (1 << i) * MTHCA_MTT_SEG_SIZE);
794 if (!dev->mr_table.tavor_fmr.mtt_base) {
795 mthca_warn(dev, "MTT ioremap for FMR failed.\n");
800 err = mthca_buddy_init(&dev->mr_table.tavor_fmr.mtt_buddy, i);
802 goto err_fmr_mtt_buddy;
804 /* Prevent regular MRs from using FMR keys */
805 err = mthca_buddy_alloc(&dev->mr_table.mtt_buddy, i);
807 goto err_reserve_fmr;
809 dev->mr_table.fmr_mtt_buddy =
810 &dev->mr_table.tavor_fmr.mtt_buddy;
812 dev->mr_table.fmr_mtt_buddy = &dev->mr_table.mtt_buddy;
814 /* FMR table is always the first, take reserved MTTs out of there */
815 if (dev->limits.reserved_mtts) {
816 i = fls(dev->limits.reserved_mtts - 1);
818 if (mthca_alloc_mtt_range(dev, i,
819 dev->mr_table.fmr_mtt_buddy) == -1) {
820 mthca_warn(dev, "MTT table of order %d is too small.\n",
821 dev->mr_table.fmr_mtt_buddy->max_order);
823 goto err_reserve_mtts;
831 if (dev->limits.fmr_reserved_mtts)
832 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
835 if (dev->mr_table.tavor_fmr.mtt_base)
836 iounmap(dev->mr_table.tavor_fmr.mtt_base);
839 if (dev->mr_table.tavor_fmr.mpt_base)
840 iounmap(dev->mr_table.tavor_fmr.mpt_base);
843 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
846 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);
851 void __devexit mthca_cleanup_mr_table(struct mthca_dev *dev)
853 /* XXX check if any MRs are still allocated? */
854 if (dev->limits.fmr_reserved_mtts)
855 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
857 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
859 if (dev->mr_table.tavor_fmr.mtt_base)
860 iounmap(dev->mr_table.tavor_fmr.mtt_base);
861 if (dev->mr_table.tavor_fmr.mpt_base)
862 iounmap(dev->mr_table.tavor_fmr.mpt_base);
864 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);