[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <9ae1fc82-d4d9-7050-b66f-b15184dc0278@linux.intel.com>
Date: Fri, 4 Aug 2023 13:34:53 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: "Tian, Kevin" <kevin.tian@...el.com>,
Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
Robin Murphy <robin.murphy@....com>,
Jason Gunthorpe <jgg@...pe.ca>,
Jean-Philippe Brucker <jean-philippe@...aro.org>,
Nicolin Chen <nicolinc@...dia.com>
Cc: baolu.lu@...ux.intel.com, "Liu, Yi L" <yi.l.liu@...el.com>,
Jacob Pan <jacob.jun.pan@...ux.intel.com>,
"iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 06/12] iommu: Make dev->fault_param static
On 8/4/23 11:56 AM, Tian, Kevin wrote:
>> From: Baolu Lu <baolu.lu@...ux.intel.com>
>> Sent: Friday, August 4, 2023 11:17 AM
>>
>> On 2023/8/3 16:08, Tian, Kevin wrote:
>>>> From: Lu Baolu <baolu.lu@...ux.intel.com>
>>>> Sent: Thursday, July 27, 2023 1:49 PM
>>>>
>>>>
>>>> mutex_init(¶m->lock);
>>>> + param->fault_param = kzalloc(sizeof(*param->fault_param),
>>>> GFP_KERNEL);
>>>> + if (!param->fault_param) {
>>>> + kfree(param);
>>>> + return -ENOMEM;
>>>> + }
>>>> + mutex_init(¶m->fault_param->lock);
>>>> + INIT_LIST_HEAD(¶m->fault_param->faults);
>>>
>>> let's also move 'partial' from struct iopf_device_param into struct
>>> iommu_fault_param. That logic is not specific to sva.
>>>
>>> meanwhile probably iopf_device_param can be renamed to
>>> iopf_sva_param since all the remaining fields are only used by
>>> the sva handler.
>>>
>>> current naming (iommu_fault_param vs. iopf_device_param) is a
>>> bit confusing when reading related code.
>>
>> My understanding is that iommu_fault_param is for all kinds of iommu
>> faults. Currently they probably include recoverable IO page faults or
>> unrecoverable DMA faults.
>>
>> While, iopf_device_param is for the recoverable IO page faults. I agree
>> that this naming is not specific and even confusing. Perhaps renaming it
>> to something like iommu_iopf_param?
>>
>
> or just iopf_param.
Okay.
Best regards,
baolu
Powered by blists - more mailing lists