diff options
| author | Roland Dreier <roland@topspin.com> | 2005-04-16 15:26:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:26:13 -0700 |
| commit | 86562a139182bb19c984347f9625b61f3e6f7815 (patch) | |
| tree | 97984c9e04c31a5d2055e4bcac16bb11c923eca1 /drivers/infiniband/hw/mthca/mthca_memfree.c | |
| parent | 79b61dceafce696d72661d23a02393566b1899ab (diff) | |
| download | lwn-86562a139182bb19c984347f9625b61f3e6f7815.tar.gz lwn-86562a139182bb19c984347f9625b61f3e6f7815.zip | |
[PATCH] IB/mthca: map MPT/MTT context in mem-free mode
In mem-free mode, when allocating memory regions, make sure that the HCA has
context memory mapped to cover the virtual space used for the MPT and MTTs
being used.
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_memfree.c')
| -rw-r--r-- | drivers/infiniband/hw/mthca/mthca_memfree.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c index 7730b5960616..a70a1c712b4b 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.c +++ b/drivers/infiniband/hw/mthca/mthca_memfree.c @@ -192,6 +192,38 @@ void mthca_table_put(struct mthca_dev *dev, struct mthca_icm_table *table, int o up(&table->mutex); } +int mthca_table_get_range(struct mthca_dev *dev, struct mthca_icm_table *table, + int start, int end) +{ + int inc = MTHCA_TABLE_CHUNK_SIZE / table->obj_size; + int i, err; + + for (i = start; i <= end; i += inc) { + err = mthca_table_get(dev, table, i); + if (err) + goto fail; + } + + return 0; + +fail: + while (i > start) { + i -= inc; + mthca_table_put(dev, table, i); + } + + return err; +} + +void mthca_table_put_range(struct mthca_dev *dev, struct mthca_icm_table *table, + int start, int end) +{ + int i; + + for (i = start; i <= end; i += MTHCA_TABLE_CHUNK_SIZE / table->obj_size) + mthca_table_put(dev, table, i); +} + struct mthca_icm_table *mthca_alloc_icm_table(struct mthca_dev *dev, u64 virt, int obj_size, int nobj, int reserved, |