diff options
| author | Hoang-Nam Nguyen <hnguyen@de.ibm.com> | 2007-09-11 15:31:06 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-10-09 19:59:09 -0700 |
| commit | e390d3b52f791fcea26312ba4982cda82052727b (patch) | |
| tree | 399af315b321e57c88cca886cd3a69c05360891b /drivers/infiniband/hw/ehca/ehca_cq.c | |
| parent | 5281a4b8a0c6bac0c070913ec25868faa06a3115 (diff) | |
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 <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ehca/ehca_cq.c')
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_cq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/infiniband/hw/ehca/ehca_cq.c index a6f17e488c77..d68603ddfc2c 100644 --- a/drivers/infiniband/hw/ehca/ehca_cq.c +++ b/drivers/infiniband/hw/ehca/ehca_cq.c @@ -281,6 +281,8 @@ struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, int comp_vector, resp.ipz_queue.queue_length = ipz_queue->queue_length; resp.ipz_queue.pagesize = ipz_queue->pagesize; resp.ipz_queue.toggle_state = ipz_queue->toggle_state; + resp.fw_handle_ofs = (u32) + (my_cq->galpas.user.fw_handle & (PAGE_SIZE - 1)); if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { ehca_err(device, "Copy to udata failed."); goto create_cq_exit4; |