aboutsummaryrefslogtreecommitdiff
path: root/drivers/infiniband/hw/mthca/mthca_provider.c
diff options
context:
space:
mode:
authorTrond Myklebust <Trond.Myklebust@netapp.com>2007-02-13 22:02:32 -0800
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-02-13 22:02:32 -0800
commitac98695d6c1508b724f246f38ce57fb4e3cec356 (patch)
tree189969a3689b9b83eaf39314a7942cc781ff836b /drivers/infiniband/hw/mthca/mthca_provider.c
parentd9bc125caf592b7d081021f32ce5b717efdf70c8 (diff)
parent93bbad8fe13a25dcf7f3bc628a71d1a7642ae61b (diff)
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/
Diffstat (limited to 'drivers/infiniband/hw/mthca/mthca_provider.c')
-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 7b96751695e..0725ad7ad9b 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -1015,6 +1015,7 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
int shift, n, len;
int i, j, k;
int err = 0;
+ int write_mtt_size;
shift = ffs(region->page_size) - 1;
@@ -1040,6 +1041,8 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
i = n = 0;
+ write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages));
+
list_for_each_entry(chunk, &region->chunk_list, list)
for (j = 0; j < chunk->nmap; ++j) {
len = sg_dma_len(&chunk->page_list[j]) >> shift;
@@ -1047,14 +1050,11 @@ static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
pages[i++] = sg_dma_address(&chunk->page_list[j]) +
region->page_size * k;
/*
- * Be friendly to WRITE_MTT command
- * and leave two empty slots for the
- * index and reserved fields of the
- * mailbox.
+ * Be friendly to write_mtt and pass it chunks
+ * of appropriate size.
*/
- if (i == PAGE_SIZE / sizeof (u64) - 2) {
- err = mthca_write_mtt(dev, mr->mtt,
- n, pages, i);
+ if (i == write_mtt_size) {
+ err = mthca_write_mtt(dev, mr->mtt, n, pages, i);
if (err)
goto mtt_done;
n += i;