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authorSteve Wise <swise@opengridcomputing.com>2009-02-10 16:38:22 -0800
committerRoland Dreier <rolandd@cisco.com>2009-02-10 16:38:22 -0800
commit900f4c16c338f742b80f3aa500e12ceb017e86af (patch)
tree70b527f55d262c531ad2ec622ef947df1e443e46 /drivers/infiniband
parentf3b8436ad9a8ad36b3c9fa1fe030c7f38e5d3d0b (diff)
RDMA/cxgb3: sgl/pbl offset calculation needs 64 bits
The variable 'offset' in iwch_sgl2pbl_map() needs to be a u64. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/cxgb3/iwch_qp.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c
index 19661b2f0406..c84ac5bfb107 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_qp.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c
@@ -195,15 +195,12 @@ static int build_inv_stag(union t3_wr *wqe, struct ib_send_wr *wr,
return 0;
}
-/*
- * TBD: this is going to be moved to firmware. Missing pdid/qpid check for now.
- */
static int iwch_sgl2pbl_map(struct iwch_dev *rhp, struct ib_sge *sg_list,
u32 num_sgle, u32 * pbl_addr, u8 * page_size)
{
int i;
struct iwch_mr *mhp;
- u32 offset;
+ u64 offset;
for (i = 0; i < num_sgle; i++) {
mhp = get_mhp(rhp, (sg_list[i].lkey) >> 8);
@@ -235,8 +232,8 @@ static int iwch_sgl2pbl_map(struct iwch_dev *rhp, struct ib_sge *sg_list,
return -EINVAL;
}
offset = sg_list[i].addr - mhp->attr.va_fbo;
- offset += ((u32) mhp->attr.va_fbo) %
- (1UL << (12 + mhp->attr.page_size));
+ offset += mhp->attr.va_fbo &
+ ((1UL << (12 + mhp->attr.page_size)) - 1);
pbl_addr[i] = ((mhp->attr.pbl_addr -
rhp->rdev.rnic_info.pbl_base) >> 3) +
(offset >> (12 + mhp->attr.page_size));