On Tue, Sep 19, 2017 at 7:17 PM, Tan, Jianfeng
wrote:
> Hi Jim,
>
> > -Original Message-
> > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jim Murphy
> > Sent: Wednesday, September 20, 2017 6:24 AM
> > To: dev@dpdk.org
> > Subject: [dpdk-dev]
Hi Jim,
> -Original Message-
> From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jim Murphy
> Sent: Wednesday, September 20, 2017 6:24 AM
> To: dev@dpdk.org
> Subject: [dpdk-dev] [PATCH v2] net/virtio-user: fix not working on 32-bit
> system
>
> Hi,
>
Hi,
The fix contained in this patch breaks under the following scenario:
1. A 64 bit host and virtual machine. Therefore all physical addresses are
64 bits.
2. A 32 bit user mode DPDK process running on a 64 bit virtual machine (64
bit kernel).
In this case, the physical address is 64bits but th
On Wed, Apr 19, 2017 at 06:21:59AM +, Tan, Jianfeng wrote:
>
>
> > I've expected it to be plain english, something like following:
> >
> > /*
> > * Return the physical address (or virtual address in case of
> > * virtio-user) of mbuf data buffer.
> > *
> > * The addre
> -Original Message-
> From: Yuanhan Liu [mailto:yuanhan@linux.intel.com]
> Sent: Wednesday, April 19, 2017 1:54 PM
> To: Tan, Jianfeng
> Cc: dev@dpdk.org; olivier.m...@6wind.com; sta...@dpdk.org
> Subject: Re: [PATCH v2] net/virtio-user: fix not working on 32-bit system
>
> On Wed,
On Wed, Apr 19, 2017 at 02:30:33AM +, Jianfeng Tan wrote:
> virtio-user cannot work on 32-bit system as higher 32-bit of the
> addr field (64-bit) in the desc is filled with non-zero value
> which should not happen for a 32-bit system.
>
> In case of virtio-user, we use buf_addr of mbuf to fil
virtio-user cannot work on 32-bit system as higher 32-bit of the
addr field (64-bit) in the desc is filled with non-zero value
which should not happen for a 32-bit system.
In case of virtio-user, we use buf_addr of mbuf to fill the
virtqueue desc addr. This is a regression bug. For 32-bit system,
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