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From: Jiri Kosina <jikos@kernel.org>
To: Boqun Feng <boqun.feng@gmail.com>
Cc: linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-scsi@vger.kernel.org,
"K. Y. Srinivasan" <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Wei Liu <wei.liu@kernel.org>,
Benjamin Tissoires <benjamin.tissoires@redhat.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
"James E.J. Bottomley" <jejb@linux.ibm.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Michael Kelley <mikelley@microsoft.com>
Subject: Re: [RFC v2 09/11] HID: hyperv: Make ringbuffer at least take two pages
Date: Wed, 2 Sep 2020 10:18:35 +0200 (CEST) [thread overview]
Message-ID: <nycvar.YFH.7.76.2009021018080.4671@cbobk.fhfr.pm> (raw)
In-Reply-To: <20200902030107.33380-10-boqun.feng@gmail.com>
On Wed, 2 Sep 2020, Boqun Feng wrote:
> When PAGE_SIZE > HV_HYP_PAGE_SIZE, we need the ringbuffer size to be at
> least 2 * PAGE_SIZE: one page for the header and at least one page of
> the data part (because of the alignment requirement for double mapping).
>
> So make sure the ringbuffer sizes to be at least 2 * PAGE_SIZE when
> using vmbus_open() to establish the vmbus connection.
>
> Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
--
Jiri Kosina
SUSE Labs
next prev parent reply other threads:[~2020-09-02 8:18 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-02 3:00 [RFC v2 00/11] Hyper-V: Support PAGE_SIZE larger than 4K Boqun Feng
2020-09-02 3:00 ` [RFC v2 01/11] Drivers: hv: vmbus: Always use HV_HYP_PAGE_SIZE for gpadl Boqun Feng
2020-09-02 3:00 ` [RFC v2 02/11] Drivers: hv: vmbus: Move __vmbus_open() Boqun Feng
2020-09-05 0:04 ` Michael Kelley
2020-09-02 3:00 ` [RFC v2 03/11] Drivers: hv: vmbus: Introduce types of GPADL Boqun Feng
2020-09-05 0:19 ` Michael Kelley
2020-09-06 4:51 ` Boqun Feng
2020-09-02 3:01 ` [RFC v2 04/11] Drivers: hv: Use HV_HYP_PAGE in hv_synic_enable_regs() Boqun Feng
2020-09-02 3:01 ` [RFC v2 05/11] Drivers: hv: vmbus: Move virt_to_hvpfn() to hyperv header Boqun Feng
2020-09-02 3:01 ` [RFC v2 06/11] hv: hyperv.h: Introduce some hvpfn helper functions Boqun Feng
2020-09-02 3:01 ` [RFC v2 07/11] hv_netvsc: Use HV_HYP_PAGE_SIZE for Hyper-V communication Boqun Feng
2020-09-05 0:30 ` Michael Kelley
2020-09-07 0:09 ` Boqun Feng
2020-09-02 3:01 ` [RFC v2 08/11] Input: hyperv-keyboard: Make ringbuffer at least take two pages Boqun Feng
2020-09-02 3:01 ` [RFC v2 09/11] HID: hyperv: " Boqun Feng
2020-09-02 8:18 ` Jiri Kosina [this message]
2020-09-02 3:01 ` [RFC v2 10/11] Driver: hv: util: " Boqun Feng
2020-09-02 3:01 ` [RFC v2 11/11] scsi: storvsc: Support PAGE_SIZE larger than 4K Boqun Feng
2020-09-05 2:55 ` Michael Kelley
2020-09-05 14:15 ` Boqun Feng
2020-09-05 15:37 ` Michael Kelley
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