From: Michael Kelley <mikelley@microsoft.com>
To: "Andrea Parri (Microsoft)" <parri.andrea@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
"wei.liu@kernel.org" <wei.liu@kernel.org>,
"linux-hyperv@vger.kernel.org" <linux-hyperv@vger.kernel.org>
Subject: RE: [PATCH v3 1/3] Drivers: hv: vmbus: Introduce and negotiate VMBus protocol version 5.3
Date: Fri, 16 Apr 2021 15:07:22 +0000 [thread overview]
Message-ID: <MWHPR21MB1593E28A4E7CDC94321BE341D74C9@MWHPR21MB1593.namprd21.prod.outlook.com> (raw)
In-Reply-To: <20210416143449.16185-2-parri.andrea@gmail.com>
From: Andrea Parri (Microsoft) <parri.andrea@gmail.com> Sent: Friday, April 16, 2021 7:35 AM
>
> Hyper-V has added VMBus protocol version 5.3. Allow Linux guests to
> negotiate the new version on version of Hyper-V that support it.
>
> Signed-off-by: Andrea Parri (Microsoft) <parri.andrea@gmail.com>
> ---
> drivers/hv/connection.c | 3 ++-
> include/linux/hyperv.h | 2 ++
> 2 files changed, 4 insertions(+), 1 deletion(-)
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
>
> diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
> index 350e8c5cafa8c..dc19d5ae4373c 100644
> --- a/drivers/hv/connection.c
> +++ b/drivers/hv/connection.c
> @@ -45,6 +45,7 @@ EXPORT_SYMBOL_GPL(vmbus_proto_version);
> * Table of VMBus versions listed from newest to oldest.
> */
> static __u32 vmbus_versions[] = {
> + VERSION_WIN10_V5_3,
> VERSION_WIN10_V5_2,
> VERSION_WIN10_V5_1,
> VERSION_WIN10_V5,
> @@ -60,7 +61,7 @@ static __u32 vmbus_versions[] = {
> * Maximal VMBus protocol version guests can negotiate. Useful to cap the
> * VMBus version for testing and debugging purpose.
> */
> -static uint max_version = VERSION_WIN10_V5_2;
> +static uint max_version = VERSION_WIN10_V5_3;
>
> module_param(max_version, uint, S_IRUGO);
> MODULE_PARM_DESC(max_version,
> diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
> index 2c18c8e768efe..3ce36bbb398e9 100644
> --- a/include/linux/hyperv.h
> +++ b/include/linux/hyperv.h
> @@ -234,6 +234,7 @@ static inline u32 hv_get_avail_to_write_percent(
> * 5 . 0 (Newer Windows 10)
> * 5 . 1 (Windows 10 RS4)
> * 5 . 2 (Windows Server 2019, RS5)
> + * 5 . 3 (Windows Server 2022)
> */
>
> #define VERSION_WS2008 ((0 << 16) | (13))
> @@ -245,6 +246,7 @@ static inline u32 hv_get_avail_to_write_percent(
> #define VERSION_WIN10_V5 ((5 << 16) | (0))
> #define VERSION_WIN10_V5_1 ((5 << 16) | (1))
> #define VERSION_WIN10_V5_2 ((5 << 16) | (2))
> +#define VERSION_WIN10_V5_3 ((5 << 16) | (3))
>
> /* Make maximum size of pipe payload of 16K */
> #define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)
> --
> 2.25.1
next prev parent reply other threads:[~2021-04-16 15:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-16 14:34 [PATCH v3 0/3] Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE Andrea Parri (Microsoft)
2021-04-16 14:34 ` [PATCH v3 1/3] Drivers: hv: vmbus: Introduce and negotiate VMBus protocol version 5.3 Andrea Parri (Microsoft)
2021-04-16 15:07 ` Michael Kelley [this message]
2021-04-16 14:34 ` [PATCH v3 2/3] Drivers: hv: vmbus: Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE Andrea Parri (Microsoft)
2021-04-16 14:34 ` [PATCH v3 3/3] Drivers: hv: vmbus: Check for pending channel interrupts before taking a CPU offline Andrea Parri (Microsoft)
2021-04-16 15:11 ` Michael Kelley
2021-04-18 13:04 ` [PATCH v3 0/3] Drivers: hv: vmbus: Introduce CHANNELMSG_MODIFYCHANNEL_RESPONSE Wei Liu
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