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authorRoland Dreier <roland@topspin.com>2005-04-16 15:26:13 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:26:13 -0700
commit86562a139182bb19c984347f9625b61f3e6f7815 (patch)
tree97984c9e04c31a5d2055e4bcac16bb11c923eca1 /drivers/infiniband/hw/mthca/mthca_memfree.c
parent79b61dceafce696d72661d23a02393566b1899ab (diff)
downloadop-kernel-dev-86562a139182bb19c984347f9625b61f3e6f7815.zip
op-kernel-dev-86562a139182bb19c984347f9625b61f3e6f7815.tar.gz
[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.c32
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 7730b59..a70a1c7 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,
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