From e390d3b52f791fcea26312ba4982cda82052727b Mon Sep 17 00:00:00 2001 From: Hoang-Nam Nguyen Date: Tue, 11 Sep 2007 15:31:06 +0200 Subject: IB/ehca: Use remap_4k_pfn() to map firmware contexts to user space Use Paul's new remap_4k_pfn() function to map our 4K firmware contexts into user space on 64K-page machines without exposing neighboring firmware contexts. Return the context's offset within a 64K page to user space so it can determine the proper virtual address. For details about remap_4k_pfn(), see commit 721151d0 or http://patchwork.ozlabs.org/linuxppc/patch?id=10281 Signed-off-by: Joachim Fenkes Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ehca/ehca_qp.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/infiniband/hw/ehca/ehca_qp.c') diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c index bfae1c228b2..e89fdca7fa1 100644 --- a/drivers/infiniband/hw/ehca/ehca_qp.c +++ b/drivers/infiniband/hw/ehca/ehca_qp.c @@ -749,6 +749,8 @@ static struct ehca_qp *internal_create_qp( queue2resp(&resp.ipz_squeue, &my_qp->ipz_squeue); if (HAS_RQ(my_qp)) queue2resp(&resp.ipz_rqueue, &my_qp->ipz_rqueue); + resp.fw_handle_ofs = (u32) + (my_qp->galpas.user.fw_handle & (PAGE_SIZE - 1)); if (ib_copy_to_udata(udata, &resp, sizeof resp)) { ehca_err(pd->device, "Copy to udata failed"); -- cgit v1.2.3