From: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
To: manoj@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v5 14/18] cxl: Support to flash a new image on the adapter from a guest
Date: Thu, 25 Feb 2016 14:11:25 +0100 [thread overview]
Message-ID: <56CEFD7D.6010005@linux.vnet.ibm.com> (raw)
In-Reply-To: <56CE0C7E.7090001@linux.vnet.ibm.com>
Le 24/02/2016 21:03, Manoj Kumar a écrit :
>> From: Christophe Lombard <clombard@linux.vnet.ibm.com>
>>
>> +#define CXL_DEV_MINORS 13 /* 1 control + 4 AFUs * 3
>> (dedicated/master/shared) */
>
> Where does this limit of 4 AFUs come from?
> Is this related to CXL_MAX_SLICES?
> Should this be a computed value, in case the number of AFUs/slices
> is increased at a future date?
The architecture document (CAIA) limits the number of AFUs to 4, though
I don't think anybody as tried with more than 1 so far.
So yes, we could have reused CXL_MAX_SLICES. Since we were just moving
the definition from another file and this is not likely to vary until a
major revision of the architecture, I don't intend to address it in this
patchset, but I've added it to my list of ideas for future cleanup (you
had already mentioned something about hard-coded constants in the
previous series).
> memset(0) after kzalloc() is redundant.
yep! Will fix.
Fred
next prev parent reply other threads:[~2016-02-25 13:11 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 16:21 [PATCH v5 00/18] cxl: Add support for powerVM guest Frederic Barrat
2016-02-23 16:21 ` [PATCH v5 01/18] cxl: Move common code away from bare-metal-specific files Frederic Barrat
2016-02-23 19:08 ` Manoj Kumar
2016-02-23 16:21 ` [PATCH v5 02/18] cxl: Move bare-metal specific code to specialized files Frederic Barrat
2016-02-23 19:09 ` Manoj Kumar
2016-02-23 16:21 ` [PATCH v5 03/18] cxl: Define process problem state area at attach time only Frederic Barrat
2016-02-23 19:09 ` Manoj Kumar
2016-03-03 3:55 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 04/18] cxl: Introduce implementation-specific API Frederic Barrat
2016-02-23 19:09 ` Manoj Kumar
2016-02-23 16:21 ` [PATCH v5 05/18] cxl: Rename some bare-metal specific functions Frederic Barrat
2016-02-23 19:11 ` Manoj Kumar
2016-03-03 4:56 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 06/18] cxl: Isolate a few bare-metal-specific calls Frederic Barrat
2016-02-23 19:12 ` Manoj Kumar
2016-02-23 16:21 ` [PATCH v5 07/18] cxl: Update cxl_irq() prototype Frederic Barrat
2016-02-23 19:13 ` Manoj Kumar
2016-02-23 16:21 ` [PATCH v5 08/18] cxl: IRQ allocation for guests Frederic Barrat
2016-02-23 19:16 ` Manoj Kumar
2016-03-03 4:59 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 09/18] cxl: New possible return value from hcall Frederic Barrat
2016-02-23 19:18 ` Manoj Kumar
2016-02-23 19:28 ` Michael Neuling
2016-02-23 16:21 ` [PATCH v5 10/18] cxl: New hcalls to support cxl adapters Frederic Barrat
2016-02-23 19:23 ` Manoj Kumar
2016-03-03 4:04 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 11/18] cxl: Separate bare-metal fields in adapter and AFU data structures Frederic Barrat
2016-02-24 16:50 ` Manoj Kumar
2016-03-03 4:09 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 12/18] cxl: Add guest-specific code Frederic Barrat
2016-02-24 18:55 ` Manoj Kumar
2016-03-03 5:02 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 13/18] cxl: sysfs support for guests Frederic Barrat
2016-02-24 19:03 ` Manoj Kumar
2016-03-03 5:04 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 14/18] cxl: Support to flash a new image on the adapter from a guest Frederic Barrat
2016-02-24 20:03 ` Manoj Kumar
2016-02-25 13:11 ` Frederic Barrat [this message]
2016-02-25 16:59 ` Manoj Kumar
2016-03-03 4:52 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 15/18] cxl: Parse device tree and create cxl device(s) at boot Frederic Barrat
2016-02-24 20:15 ` Manoj Kumar
2016-02-25 13:19 ` Frederic Barrat
2016-02-25 16:44 ` Manoj Kumar
2016-02-23 16:21 ` [PATCH v5 16/18] cxl: Support the cxl kernel API from a guest Frederic Barrat
2016-02-24 21:09 ` Manoj Kumar
2016-03-03 5:08 ` Ian Munsie
2016-02-23 16:21 ` [PATCH v5 17/18] cxl: Adapter failure handling Frederic Barrat
2016-02-24 21:41 ` Manoj Kumar
2016-02-23 16:21 ` [PATCH v5 18/18] cxl: Add tracepoints around the cxl hcall Frederic Barrat
2016-02-24 21:49 ` Manoj Kumar
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