From: Wim Coekaerts <wim.coekaerts@oracle.com>
To: Guenter Roeck <linux@roeck-us.net>, wim@iguana.be
Cc: linux-watchdog@vger.kernel.org, sparclinux@vger.kernel.org
Subject: Re: [PATCH v3] Add sun4v_wdt watchdog driver
Date: Mon, 25 Jan 2016 13:09:47 -0800 [thread overview]
Message-ID: <56A68F1B.80605@oracle.com> (raw)
In-Reply-To: <56A68D5F.40406@roeck-us.net>
On 01/25/2016 01:02 PM, Guenter Roeck wrote:
> On 01/25/2016 12:38 PM, Wim Coekaerts wrote:
>> This driver adds sparc hypervisor watchdog support. Timeout is set in
>> milliseconds since that is the granularity supported and it honors
>> the settings of both the watchdog-resolution and watchdog-max-timeout
>> MD properties.
>>
>> Default timeout is set at 60 seconds or 60000ms. The range is between
>> 1 second and 180 seconds. The default resolution is 1000ms.
>>
>> Signed-off-by: Wim Coekaerts <wim.coekaerts@oracle.com>
>> ---
>> Changes in v3:
>> - Modify sun4v_mach_set_watchdog to allow for NULL and remove
>> time_remaining
>> - Cleanup includes
>> - Consolidate _start and _ping into _ping since they were the same
>> - Fix checkpatch warnings
>> - Remove pr_info()s
>> - Clean up return codes to be standard kernel return values
>> - Consolidate _init and _probe into _init
>> Don't use platform_device anymore because this is really
>> just a driver that depends on a hv call. This now looks more
>> like softdog.
>> - Cleanly check for sun4v architecture and remove extra tests
>> - Convert to ms timer support and honor resolution
>> since most drivers use seconds I added _ms to make it clear
>
> You can not redefine the watchdog ABI to mean milli-seconds instead of
> seconds.
ugh ok. Then it makes honoring resolutions a bit useless (comment on
previous patch about having a fixed 1s resolution)
If I round timeout back to seconds, does the rest at least look ok now?
WARNING: multiple messages have this Message-ID (diff)
From: Wim Coekaerts <wim.coekaerts@oracle.com>
To: Guenter Roeck <linux@roeck-us.net>, wim@iguana.be
Cc: linux-watchdog@vger.kernel.org, sparclinux@vger.kernel.org
Subject: Re: [PATCH v3] Add sun4v_wdt watchdog driver
Date: Mon, 25 Jan 2016 21:09:47 +0000 [thread overview]
Message-ID: <56A68F1B.80605@oracle.com> (raw)
In-Reply-To: <56A68D5F.40406@roeck-us.net>
On 01/25/2016 01:02 PM, Guenter Roeck wrote:
> On 01/25/2016 12:38 PM, Wim Coekaerts wrote:
>> This driver adds sparc hypervisor watchdog support. Timeout is set in
>> milliseconds since that is the granularity supported and it honors
>> the settings of both the watchdog-resolution and watchdog-max-timeout
>> MD properties.
>>
>> Default timeout is set at 60 seconds or 60000ms. The range is between
>> 1 second and 180 seconds. The default resolution is 1000ms.
>>
>> Signed-off-by: Wim Coekaerts <wim.coekaerts@oracle.com>
>> ---
>> Changes in v3:
>> - Modify sun4v_mach_set_watchdog to allow for NULL and remove
>> time_remaining
>> - Cleanup includes
>> - Consolidate _start and _ping into _ping since they were the same
>> - Fix checkpatch warnings
>> - Remove pr_info()s
>> - Clean up return codes to be standard kernel return values
>> - Consolidate _init and _probe into _init
>> Don't use platform_device anymore because this is really
>> just a driver that depends on a hv call. This now looks more
>> like softdog.
>> - Cleanly check for sun4v architecture and remove extra tests
>> - Convert to ms timer support and honor resolution
>> since most drivers use seconds I added _ms to make it clear
>
> You can not redefine the watchdog ABI to mean milli-seconds instead of
> seconds.
ugh ok. Then it makes honoring resolutions a bit useless (comment on
previous patch about having a fixed 1s resolution)
If I round timeout back to seconds, does the rest at least look ok now?
next prev parent reply other threads:[~2016-01-25 21:09 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 20:38 [PATCH v3] Add sun4v_wdt watchdog driver Wim Coekaerts
2016-01-25 20:38 ` Wim Coekaerts
2016-01-25 21:02 ` Guenter Roeck
2016-01-25 21:02 ` Guenter Roeck
2016-01-25 21:09 ` Wim Coekaerts [this message]
2016-01-25 21:09 ` Wim Coekaerts
2016-01-25 21:15 ` Guenter Roeck
2016-01-25 21:15 ` Guenter Roeck
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