summaryrefslogtreecommitdiffstats
path: root/net/rds/ib_rdma.c
diff options
context:
space:
mode:
authorAndy Grover <andy.grover@oracle.com>2009-07-17 13:13:33 +0000
committerDavid S. Miller <davem@davemloft.net>2009-07-20 08:03:13 -0700
commita870d62726721785c34fa73d852bd35e5d1b295b (patch)
treebab3e33c8030e296477d4719817dfbe75303f04f /net/rds/ib_rdma.c
parentedacaeae52ade6cbb3a0704db32a9fb4a219dee3 (diff)
downloadop-kernel-dev-a870d62726721785c34fa73d852bd35e5d1b295b.zip
op-kernel-dev-a870d62726721785c34fa73d852bd35e5d1b295b.tar.gz
RDS/IB: Always use PAGE_SIZE for FMR page size
While FMRs allow significant flexibility in what size of pages they can use, we really just want FMR pages to match CPU page size. Roland says we can count on this always being supported, so this simplifies things. Signed-off-by: Andy Grover <andy.grover@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/ib_rdma.c')
-rw-r--r--net/rds/ib_rdma.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index 81033af..ef3ab5b 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -211,7 +211,7 @@ struct rds_ib_mr_pool *rds_ib_create_mr_pool(struct rds_ib_device *rds_ibdev)
pool->fmr_attr.max_pages = fmr_message_size;
pool->fmr_attr.max_maps = rds_ibdev->fmr_max_remaps;
- pool->fmr_attr.page_shift = rds_ibdev->fmr_page_shift;
+ pool->fmr_attr.page_shift = PAGE_SHIFT;
pool->max_free_pinned = rds_ibdev->max_fmrs * fmr_message_size / 4;
/* We never allow more than max_items MRs to be allocated.
@@ -349,13 +349,13 @@ static int rds_ib_map_fmr(struct rds_ib_device *rds_ibdev, struct rds_ib_mr *ibm
unsigned int dma_len = ib_sg_dma_len(dev, &scat[i]);
u64 dma_addr = ib_sg_dma_address(dev, &scat[i]);
- if (dma_addr & ~rds_ibdev->fmr_page_mask) {
+ if (dma_addr & ~PAGE_MASK) {
if (i > 0)
return -EINVAL;
else
++page_cnt;
}
- if ((dma_addr + dma_len) & ~rds_ibdev->fmr_page_mask) {
+ if ((dma_addr + dma_len) & ~PAGE_MASK) {
if (i < sg_dma_len - 1)
return -EINVAL;
else
@@ -365,7 +365,7 @@ static int rds_ib_map_fmr(struct rds_ib_device *rds_ibdev, struct rds_ib_mr *ibm
len += dma_len;
}
- page_cnt += len >> rds_ibdev->fmr_page_shift;
+ page_cnt += len >> PAGE_SHIFT;
if (page_cnt > fmr_message_size)
return -EINVAL;
@@ -378,9 +378,9 @@ static int rds_ib_map_fmr(struct rds_ib_device *rds_ibdev, struct rds_ib_mr *ibm
unsigned int dma_len = ib_sg_dma_len(dev, &scat[i]);
u64 dma_addr = ib_sg_dma_address(dev, &scat[i]);
- for (j = 0; j < dma_len; j += rds_ibdev->fmr_page_size)
+ for (j = 0; j < dma_len; j += PAGE_SIZE)
dma_pages[page_cnt++] =
- (dma_addr & rds_ibdev->fmr_page_mask) + j;
+ (dma_addr & PAGE_MASK) + j;
}
ret = ib_map_phys_fmr(ibmr->fmr,
OpenPOWER on IntegriCloud