diff options
| author | Yuval Shaia <yuval.shaia@oracle.com> | 2018-08-05 18:35:17 +0300 |
|---|---|---|
| committer | Marcel Apfelbaum <marcel.apfelbaum@gmail.com> | 2018-08-18 18:00:55 +0300 |
| commit | 7d2ce4b0169e6bd2bb1b87eb69f1fae96c854ffc (patch) | |
| tree | 2d9921d7ee26d89a6f8d7d2732b57803c8e6a409 /hw/rdma/vmw | |
| parent | abc665aae30a6fa3b6bb6784b535ab656461abd3 (diff) | |
hw/rdma: Bugfix - Support non-aligned buffers
RDMA application can provide non-aligned buffers to be registered. In
such case the DMA address passed by driver is pointing to the beginning
of the physical address of the mapped page so we can't distinguish
between two addresses from the same page.
Fix it by keeping the offset of the virtual address in mr->virt.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-13-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Diffstat (limited to 'hw/rdma/vmw')
| -rw-r--r-- | hw/rdma/vmw/pvrdma_cmd.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c index 4f74b29936..b74b0b48d0 100644 --- a/hw/rdma/vmw/pvrdma_cmd.c +++ b/hw/rdma/vmw/pvrdma_cmd.c @@ -59,6 +59,7 @@ static void *pvrdma_map_to_pdir(PCIDevice *pdev, uint64_t pdir_dma, } host_virt = mremap(curr_page, 0, length, MREMAP_MAYMOVE); + pr_dbg("mremap %p -> %p\n", curr_page, host_virt); if (host_virt == MAP_FAILED) { host_virt = NULL; error_report("PVRDMA: Failed to remap memory for host_virt"); |