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 * Must be packed because mtt_seg is 64 bits but only aligned to 32 bits.
46 struct mthca_mpt_entry {
55 u32 window_count_limit;
57 u32 mtt_sz; /* Arbel only */
59 } __attribute__((packed));
61 #define MTHCA_MPT_FLAG_SW_OWNS (0xfUL << 28)
62 #define MTHCA_MPT_FLAG_MIO (1 << 17)
63 #define MTHCA_MPT_FLAG_BIND_ENABLE (1 << 15)
64 #define MTHCA_MPT_FLAG_PHYSICAL (1 << 9)
65 #define MTHCA_MPT_FLAG_REGION (1 << 8)
67 #define MTHCA_MTT_FLAG_PRESENT 1
69 #define MTHCA_MPT_STATUS_SW 0xF0
70 #define MTHCA_MPT_STATUS_HW 0x00
73 * Buddy allocator for MTT segments (currently not very efficient
74 * since it doesn't keep a free list and just searches linearly
75 * through the bitmaps)
78 static u32 mthca_buddy_alloc(struct mthca_buddy *buddy, int order)
84 spin_lock(&buddy->lock);
86 for (o = order; o <= buddy->max_order; ++o) {
87 m = 1 << (buddy->max_order - o);
88 seg = find_first_bit(buddy->bits[o], m);
93 spin_unlock(&buddy->lock);
97 clear_bit(seg, buddy->bits[o]);
102 set_bit(seg ^ 1, buddy->bits[o]);
105 spin_unlock(&buddy->lock);
112 static void mthca_buddy_free(struct mthca_buddy *buddy, u32 seg, int order)
116 spin_lock(&buddy->lock);
118 while (test_bit(seg ^ 1, buddy->bits[order])) {
119 clear_bit(seg ^ 1, buddy->bits[order]);
124 set_bit(seg, buddy->bits[order]);
126 spin_unlock(&buddy->lock);
129 static int __devinit mthca_buddy_init(struct mthca_buddy *buddy, int max_order)
133 buddy->max_order = max_order;
134 spin_lock_init(&buddy->lock);
136 buddy->bits = kmalloc((buddy->max_order + 1) * sizeof (long *),
141 memset(buddy->bits, 0, (buddy->max_order + 1) * sizeof (long *));
143 for (i = 0; i <= buddy->max_order; ++i) {
144 s = BITS_TO_LONGS(1 << (buddy->max_order - i));
145 buddy->bits[i] = kmalloc(s * sizeof (long), GFP_KERNEL);
148 bitmap_zero(buddy->bits[i],
149 1 << (buddy->max_order - i));
152 set_bit(0, buddy->bits[buddy->max_order]);
157 for (i = 0; i <= buddy->max_order; ++i)
158 kfree(buddy->bits[i]);
166 static void __devexit mthca_buddy_cleanup(struct mthca_buddy *buddy)
170 for (i = 0; i <= buddy->max_order; ++i)
171 kfree(buddy->bits[i]);
176 static u32 mthca_alloc_mtt(struct mthca_dev *dev, int order,
177 struct mthca_buddy *buddy)
179 u32 seg = mthca_buddy_alloc(buddy, order);
184 if (mthca_is_memfree(dev))
185 if (mthca_table_get_range(dev, dev->mr_table.mtt_table, seg,
186 seg + (1 << order) - 1)) {
187 mthca_buddy_free(buddy, seg, order);
194 static void mthca_free_mtt(struct mthca_dev *dev, u32 seg, int order,
195 struct mthca_buddy* buddy)
197 mthca_buddy_free(buddy, seg, order);
199 if (mthca_is_memfree(dev))
200 mthca_table_put_range(dev, dev->mr_table.mtt_table, seg,
201 seg + (1 << order) - 1);
204 static inline u32 tavor_hw_index_to_key(u32 ind)
209 static inline u32 tavor_key_to_hw_index(u32 key)
214 static inline u32 arbel_hw_index_to_key(u32 ind)
216 return (ind >> 24) | (ind << 8);
219 static inline u32 arbel_key_to_hw_index(u32 key)
221 return (key << 24) | (key >> 8);
224 static inline u32 hw_index_to_key(struct mthca_dev *dev, u32 ind)
226 if (mthca_is_memfree(dev))
227 return arbel_hw_index_to_key(ind);
229 return tavor_hw_index_to_key(ind);
232 static inline u32 key_to_hw_index(struct mthca_dev *dev, u32 key)
234 if (mthca_is_memfree(dev))
235 return arbel_key_to_hw_index(key);
237 return tavor_key_to_hw_index(key);
240 int mthca_mr_alloc_notrans(struct mthca_dev *dev, u32 pd,
241 u32 access, struct mthca_mr *mr)
243 void *mailbox = NULL;
244 struct mthca_mpt_entry *mpt_entry;
252 key = mthca_alloc(&dev->mr_table.mpt_alloc);
255 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
257 if (mthca_is_memfree(dev)) {
258 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
260 goto err_out_mpt_free;
263 mailbox = kmalloc(sizeof *mpt_entry + MTHCA_CMD_MAILBOX_EXTRA,
269 mpt_entry = MAILBOX_ALIGN(mailbox);
271 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
273 MTHCA_MPT_FLAG_PHYSICAL |
274 MTHCA_MPT_FLAG_REGION |
276 mpt_entry->page_size = 0;
277 mpt_entry->key = cpu_to_be32(key);
278 mpt_entry->pd = cpu_to_be32(pd);
279 mpt_entry->start = 0;
280 mpt_entry->length = ~0ULL;
282 memset(&mpt_entry->lkey, 0,
283 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, lkey));
285 err = mthca_SW2HW_MPT(dev, mpt_entry,
286 key & (dev->limits.num_mpts - 1),
289 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
292 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
302 if (mthca_is_memfree(dev))
303 mthca_table_put(dev, dev->mr_table.mpt_table, key);
306 mthca_free(&dev->mr_table.mpt_alloc, key);
311 int mthca_mr_alloc_phys(struct mthca_dev *dev, u32 pd,
312 u64 *buffer_list, int buffer_size_shift,
313 int list_len, u64 iova, u64 total_size,
314 u32 access, struct mthca_mr *mr)
318 struct mthca_mpt_entry *mpt_entry;
325 WARN_ON(buffer_size_shift >= 32);
327 key = mthca_alloc(&dev->mr_table.mpt_alloc);
330 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
332 if (mthca_is_memfree(dev)) {
333 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
335 goto err_out_mpt_free;
338 for (i = MTHCA_MTT_SEG_SIZE / 8, mr->order = 0;
340 i <<= 1, ++mr->order)
343 mr->first_seg = mthca_alloc_mtt(dev, mr->order,
344 &dev->mr_table.mtt_buddy);
345 if (mr->first_seg == -1)
349 * If list_len is odd, we add one more dummy entry for
350 * firmware efficiency.
352 mailbox = kmalloc(max(sizeof *mpt_entry,
353 (size_t) 8 * (list_len + (list_len & 1) + 2)) +
354 MTHCA_CMD_MAILBOX_EXTRA,
357 goto err_out_free_mtt;
359 mtt_entry = MAILBOX_ALIGN(mailbox);
361 mtt_entry[0] = cpu_to_be64(dev->mr_table.mtt_base +
362 mr->first_seg * MTHCA_MTT_SEG_SIZE);
364 for (i = 0; i < list_len; ++i)
365 mtt_entry[i + 2] = cpu_to_be64(buffer_list[i] |
366 MTHCA_MTT_FLAG_PRESENT);
368 mtt_entry[i + 2] = 0;
373 mthca_dbg(dev, "Dumping MPT entry\n");
374 for (i = 0; i < list_len + 2; ++i)
375 printk(KERN_ERR "[%2d] %016llx\n",
376 i, (unsigned long long) be64_to_cpu(mtt_entry[i]));
379 err = mthca_WRITE_MTT(dev, mtt_entry, list_len, &status);
381 mthca_warn(dev, "WRITE_MTT failed (%d)\n", err);
382 goto err_out_mailbox_free;
385 mthca_warn(dev, "WRITE_MTT returned status 0x%02x\n",
388 goto err_out_mailbox_free;
391 mpt_entry = MAILBOX_ALIGN(mailbox);
393 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
395 MTHCA_MPT_FLAG_REGION |
398 mpt_entry->page_size = cpu_to_be32(buffer_size_shift - 12);
399 mpt_entry->key = cpu_to_be32(key);
400 mpt_entry->pd = cpu_to_be32(pd);
401 mpt_entry->start = cpu_to_be64(iova);
402 mpt_entry->length = cpu_to_be64(total_size);
403 memset(&mpt_entry->lkey, 0,
404 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, lkey));
405 mpt_entry->mtt_seg = cpu_to_be64(dev->mr_table.mtt_base +
406 mr->first_seg * MTHCA_MTT_SEG_SIZE);
409 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
410 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
412 printk("[%02x] ", i * 4);
413 printk(" %08x", be32_to_cpu(((u32 *) mpt_entry)[i]));
414 if ((i + 1) % 4 == 0)
419 err = mthca_SW2HW_MPT(dev, mpt_entry,
420 key & (dev->limits.num_mpts - 1),
423 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
425 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
433 err_out_mailbox_free:
437 mthca_free_mtt(dev, mr->first_seg, mr->order, &dev->mr_table.mtt_buddy);
440 if (mthca_is_memfree(dev))
441 mthca_table_put(dev, dev->mr_table.mpt_table, key);
444 mthca_free(&dev->mr_table.mpt_alloc, key);
449 static void mthca_free_region(struct mthca_dev *dev, u32 lkey, int order,
450 u32 first_seg, struct mthca_buddy *buddy)
453 mthca_free_mtt(dev, first_seg, order, buddy);
455 if (mthca_is_memfree(dev))
456 mthca_table_put(dev, dev->mr_table.mpt_table,
457 arbel_key_to_hw_index(lkey));
459 mthca_free(&dev->mr_table.mpt_alloc, key_to_hw_index(dev, lkey));
462 void mthca_free_mr(struct mthca_dev *dev, struct mthca_mr *mr)
469 err = mthca_HW2SW_MPT(dev, NULL,
470 key_to_hw_index(dev, mr->ibmr.lkey) &
471 (dev->limits.num_mpts - 1),
474 mthca_warn(dev, "HW2SW_MPT failed (%d)\n", err);
476 mthca_warn(dev, "HW2SW_MPT returned status 0x%02x\n",
479 mthca_free_region(dev, mr->ibmr.lkey, mr->order, mr->first_seg,
480 &dev->mr_table.mtt_buddy);
483 int mthca_fmr_alloc(struct mthca_dev *dev, u32 pd,
484 u32 access, struct mthca_fmr *mr)
486 struct mthca_mpt_entry *mpt_entry;
491 int list_len = mr->attr.max_pages;
497 if (mr->attr.page_size < 12 || mr->attr.page_size >= 32)
500 /* For Arbel, all MTTs must fit in the same page. */
501 if (mthca_is_memfree(dev) &&
502 mr->attr.max_pages * sizeof *mr->mem.arbel.mtts > PAGE_SIZE)
507 key = mthca_alloc(&dev->mr_table.mpt_alloc);
511 idx = key & (dev->limits.num_mpts - 1);
512 mr->ibmr.rkey = mr->ibmr.lkey = hw_index_to_key(dev, key);
514 if (mthca_is_memfree(dev)) {
515 err = mthca_table_get(dev, dev->mr_table.mpt_table, key);
517 goto err_out_mpt_free;
519 mr->mem.arbel.mpt = mthca_table_find(dev->mr_table.mpt_table, key);
520 BUG_ON(!mr->mem.arbel.mpt);
522 mr->mem.tavor.mpt = dev->mr_table.tavor_fmr.mpt_base +
523 sizeof *(mr->mem.tavor.mpt) * idx;
525 for (i = MTHCA_MTT_SEG_SIZE / 8, mr->order = 0;
527 i <<= 1, ++mr->order)
530 mr->first_seg = mthca_alloc_mtt(dev, mr->order,
531 dev->mr_table.fmr_mtt_buddy);
532 if (mr->first_seg == -1)
535 mtt_seg = mr->first_seg * MTHCA_MTT_SEG_SIZE;
537 if (mthca_is_memfree(dev)) {
538 mr->mem.arbel.mtts = mthca_table_find(dev->mr_table.mtt_table,
540 BUG_ON(!mr->mem.arbel.mtts);
542 mr->mem.tavor.mtts = dev->mr_table.tavor_fmr.mtt_base + mtt_seg;
544 mailbox = kmalloc(sizeof *mpt_entry + MTHCA_CMD_MAILBOX_EXTRA,
547 goto err_out_free_mtt;
549 mpt_entry = MAILBOX_ALIGN(mailbox);
551 mpt_entry->flags = cpu_to_be32(MTHCA_MPT_FLAG_SW_OWNS |
553 MTHCA_MPT_FLAG_REGION |
556 mpt_entry->page_size = cpu_to_be32(mr->attr.page_size - 12);
557 mpt_entry->key = cpu_to_be32(key);
558 mpt_entry->pd = cpu_to_be32(pd);
559 memset(&mpt_entry->start, 0,
560 sizeof *mpt_entry - offsetof(struct mthca_mpt_entry, start));
561 mpt_entry->mtt_seg = cpu_to_be64(dev->mr_table.mtt_base + mtt_seg);
564 mthca_dbg(dev, "Dumping MPT entry %08x:\n", mr->ibmr.lkey);
565 for (i = 0; i < sizeof (struct mthca_mpt_entry) / 4; ++i) {
567 printk("[%02x] ", i * 4);
568 printk(" %08x", be32_to_cpu(((u32 *) mpt_entry)[i]));
569 if ((i + 1) % 4 == 0)
574 err = mthca_SW2HW_MPT(dev, mpt_entry,
575 key & (dev->limits.num_mpts - 1),
578 mthca_warn(dev, "SW2HW_MPT failed (%d)\n", err);
579 goto err_out_mailbox_free;
582 mthca_warn(dev, "SW2HW_MPT returned status 0x%02x\n",
585 goto err_out_mailbox_free;
591 err_out_mailbox_free:
595 mthca_free_mtt(dev, mr->first_seg, mr->order,
596 dev->mr_table.fmr_mtt_buddy);
599 if (mthca_is_memfree(dev))
600 mthca_table_put(dev, dev->mr_table.mpt_table, key);
603 mthca_free(&dev->mr_table.mpt_alloc, mr->ibmr.lkey);
607 int mthca_free_fmr(struct mthca_dev *dev, struct mthca_fmr *fmr)
612 mthca_free_region(dev, fmr->ibmr.lkey, fmr->order, fmr->first_seg,
613 dev->mr_table.fmr_mtt_buddy);
617 static inline int mthca_check_fmr(struct mthca_fmr *fmr, u64 *page_list,
618 int list_len, u64 iova)
622 if (list_len > fmr->attr.max_pages)
625 page_mask = (1 << fmr->attr.page_size) - 1;
627 /* We are getting page lists, so va must be page aligned. */
628 if (iova & page_mask)
631 /* Trust the user not to pass misaligned data in page_list */
633 for (i = 0; i < list_len; ++i) {
634 if (page_list[i] & ~page_mask)
638 if (fmr->maps >= fmr->attr.max_maps)
645 int mthca_tavor_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
646 int list_len, u64 iova)
648 struct mthca_fmr *fmr = to_mfmr(ibfmr);
649 struct mthca_dev *dev = to_mdev(ibfmr->device);
650 struct mthca_mpt_entry mpt_entry;
654 err = mthca_check_fmr(fmr, page_list, list_len, iova);
660 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
661 key += dev->limits.num_mpts;
662 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
664 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
666 for (i = 0; i < list_len; ++i) {
667 __be64 mtt_entry = cpu_to_be64(page_list[i] |
668 MTHCA_MTT_FLAG_PRESENT);
669 mthca_write64_raw(mtt_entry, fmr->mem.tavor.mtts + i);
672 mpt_entry.lkey = cpu_to_be32(key);
673 mpt_entry.length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
674 mpt_entry.start = cpu_to_be64(iova);
676 writel(mpt_entry.lkey, &fmr->mem.tavor.mpt->key);
677 memcpy_toio(&fmr->mem.tavor.mpt->start, &mpt_entry.start,
678 offsetof(struct mthca_mpt_entry, window_count) -
679 offsetof(struct mthca_mpt_entry, start));
681 writeb(MTHCA_MPT_STATUS_HW, fmr->mem.tavor.mpt);
686 int mthca_arbel_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
687 int list_len, u64 iova)
689 struct mthca_fmr *fmr = to_mfmr(ibfmr);
690 struct mthca_dev *dev = to_mdev(ibfmr->device);
694 err = mthca_check_fmr(fmr, page_list, list_len, iova);
700 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
701 key += dev->limits.num_mpts;
702 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
704 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
708 for (i = 0; i < list_len; ++i)
709 fmr->mem.arbel.mtts[i] = cpu_to_be64(page_list[i] |
710 MTHCA_MTT_FLAG_PRESENT);
712 fmr->mem.arbel.mpt->key = cpu_to_be32(key);
713 fmr->mem.arbel.mpt->lkey = cpu_to_be32(key);
714 fmr->mem.arbel.mpt->length = cpu_to_be64(list_len * (1ull << fmr->attr.page_size));
715 fmr->mem.arbel.mpt->start = cpu_to_be64(iova);
719 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_HW;
726 void mthca_tavor_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
733 key = tavor_key_to_hw_index(fmr->ibmr.lkey);
734 key &= dev->limits.num_mpts - 1;
735 fmr->ibmr.lkey = fmr->ibmr.rkey = tavor_hw_index_to_key(key);
739 writeb(MTHCA_MPT_STATUS_SW, fmr->mem.tavor.mpt);
742 void mthca_arbel_fmr_unmap(struct mthca_dev *dev, struct mthca_fmr *fmr)
749 key = arbel_key_to_hw_index(fmr->ibmr.lkey);
750 key &= dev->limits.num_mpts - 1;
751 fmr->ibmr.lkey = fmr->ibmr.rkey = arbel_hw_index_to_key(key);
755 *(u8 *) fmr->mem.arbel.mpt = MTHCA_MPT_STATUS_SW;
758 int __devinit mthca_init_mr_table(struct mthca_dev *dev)
762 err = mthca_alloc_init(&dev->mr_table.mpt_alloc,
763 dev->limits.num_mpts,
764 ~0, dev->limits.reserved_mrws);
768 if (!mthca_is_memfree(dev) &&
769 (dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN))
770 dev->limits.fmr_reserved_mtts = 0;
772 dev->mthca_flags |= MTHCA_FLAG_FMR;
774 err = mthca_buddy_init(&dev->mr_table.mtt_buddy,
775 fls(dev->limits.num_mtt_segs - 1));
780 dev->mr_table.tavor_fmr.mpt_base = NULL;
781 dev->mr_table.tavor_fmr.mtt_base = NULL;
783 if (dev->limits.fmr_reserved_mtts) {
784 i = fls(dev->limits.fmr_reserved_mtts - 1);
787 mthca_warn(dev, "Unable to reserve 2^31 FMR MTTs.\n");
792 dev->mr_table.tavor_fmr.mpt_base =
793 ioremap(dev->mr_table.mpt_base,
794 (1 << i) * sizeof (struct mthca_mpt_entry));
796 if (!dev->mr_table.tavor_fmr.mpt_base) {
797 mthca_warn(dev, "MPT ioremap for FMR failed.\n");
802 dev->mr_table.tavor_fmr.mtt_base =
803 ioremap(dev->mr_table.mtt_base,
804 (1 << i) * MTHCA_MTT_SEG_SIZE);
805 if (!dev->mr_table.tavor_fmr.mtt_base) {
806 mthca_warn(dev, "MTT ioremap for FMR failed.\n");
811 err = mthca_buddy_init(&dev->mr_table.tavor_fmr.mtt_buddy, i);
813 goto err_fmr_mtt_buddy;
815 /* Prevent regular MRs from using FMR keys */
816 err = mthca_buddy_alloc(&dev->mr_table.mtt_buddy, i);
818 goto err_reserve_fmr;
820 dev->mr_table.fmr_mtt_buddy =
821 &dev->mr_table.tavor_fmr.mtt_buddy;
823 dev->mr_table.fmr_mtt_buddy = &dev->mr_table.mtt_buddy;
825 /* FMR table is always the first, take reserved MTTs out of there */
826 if (dev->limits.reserved_mtts) {
827 i = fls(dev->limits.reserved_mtts - 1);
829 if (mthca_alloc_mtt(dev, i, dev->mr_table.fmr_mtt_buddy) == -1) {
830 mthca_warn(dev, "MTT table of order %d is too small.\n",
831 dev->mr_table.fmr_mtt_buddy->max_order);
833 goto err_reserve_mtts;
841 if (dev->limits.fmr_reserved_mtts)
842 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
845 if (dev->mr_table.tavor_fmr.mtt_base)
846 iounmap(dev->mr_table.tavor_fmr.mtt_base);
849 if (dev->mr_table.tavor_fmr.mpt_base)
850 iounmap(dev->mr_table.tavor_fmr.mpt_base);
853 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
856 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);
861 void __devexit mthca_cleanup_mr_table(struct mthca_dev *dev)
863 /* XXX check if any MRs are still allocated? */
864 if (dev->limits.fmr_reserved_mtts)
865 mthca_buddy_cleanup(&dev->mr_table.tavor_fmr.mtt_buddy);
867 mthca_buddy_cleanup(&dev->mr_table.mtt_buddy);
869 if (dev->mr_table.tavor_fmr.mtt_base)
870 iounmap(dev->mr_table.tavor_fmr.mtt_base);
871 if (dev->mr_table.tavor_fmr.mpt_base)
872 iounmap(dev->mr_table.tavor_fmr.mpt_base);
874 mthca_alloc_cleanup(&dev->mr_table.mpt_alloc);