[dpdk-dev] [PATCH v8 01/15] vhost: add virtio packed virtqueue defines
Maxime Coquelin
maxime.coquelin at redhat.com
Fri Jul 6 08:34:19 CEST 2018
On 07/06/2018 04:52 AM, Tiwei Bie wrote:
> On Thu, Jul 05, 2018 at 11:07:27PM +0200, Maxime Coquelin wrote:
>> From: Jens Freimann <jfreimann at redhat.com>
>>
>> Signed-off-by: Jens Freimann <jfreimann at redhat.com>
>> ---
>> lib/librte_vhost/vhost.h | 20 ++++++++++++++++++++
>> 1 file changed, 20 insertions(+)
>>
>> diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
>> index 79e3117d2..4fc804bd8 100644
>> --- a/lib/librte_vhost/vhost.h
>> +++ b/lib/librte_vhost/vhost.h
>> @@ -192,6 +192,26 @@ struct vhost_msg {
>> #define VIRTIO_F_VERSION_1 32
>> #endif
>>
>> +/* Declare packed ring related bits for older kernels */
>> +#ifndef VIRTIO_F_RING_PACKED
>> +
>> +#define VIRTIO_F_RING_PACKED 34
>> +
>> +#define VRING_DESC_F_NEXT 1
>> +#define VRING_DESC_F_WRITE 2
>> +#define VRING_DESC_F_INDIRECT 4
>> +
>> +#define VRING_DESC_F_AVAIL (1ULL << 7)
>> +#define VRING_DESC_F_USED (1ULL << 15)
>> +
>> +struct vring_desc_packed {
>
> Maybe vring_packed_desc will be more consistent with
> vring_packed_desc_event and vring_packed. Jason also
> planned to change the name to vring_packed_desc [1].
>
> [1] https://lkml.org/lkml/2018/7/4/36
Thanks for the reminder, I fixed it in the series.
Regards,
Maxime
>
> Best regards,
> Tiwei Bie
>
>> + uint64_t addr;
>> + uint32_t len;
>> + uint16_t id;
>> + uint16_t flags;
>> +};
>> +#endif
>> +
>> /*
>> * Available and used descs are in same order
>> */
>> --
>> 2.14.4
>>
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