linux-kernel - Re: [PATCH 06/10] misc: pci_endpoint

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Message-ID: <3485fade-56fd-0078-a330-41187445c984@synopsys.com>
Date:   Mon, 30 Apr 2018 17:30:20 +0100
From:   Gustavo Pimentel <gustavo.pimentel@...opsys.com>
To:     Alan Douglas <adouglas@...ence.com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "Joao.Pinto@...opsys.com" <Joao.Pinto@...opsys.com>,
        "jingoohan1@...il.com" <jingoohan1@...il.com>,
        "kishon@...com" <kishon@...com>,
        "jesper.nilsson@...s.com" <jesper.nilsson@...s.com>
Cc:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 06/10] misc: pci_endpoint_test: Add MSI-X support

Hi Alan,

On 30/04/2018 16:35, Alan Douglas wrote:
> Hi Gustavo,
> 
> On April 27, 2018, 4:57 p.m. Gustavo Pimentel wrote:
>> Add MSI-X support and update driver documentation accordingly.
>>
>> Add new driver parameter to allow interruption type selection.
>>
>> Modify the Legacy/MSI/MSI-X test process, by:
>>  - Add and use a specific register located in a BAR, which defines the interrupt
>> type is been triggered.
>>  - Move the interrupt ID number from the command section to a register
>> located in a BAR.
>>
>> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
>> ---
>>  Documentation/misc-devices/pci-endpoint-test.txt |   3 +
>>  drivers/misc/pci_endpoint_test.c                 | 121 +++++++++++++++--------
>>  drivers/pci/endpoint/functions/pci-epf-test.c    |  78 +++++++++++----
>>  3 files changed, 143 insertions(+), 59 deletions(-)
>>
> In testing these changes  I found that pci_epc_raise_irq() also needs to be
> updated in pci-epc-core.c, since it has interrupt_num parameter as u8

Yes, indeed. I updated it together with the pci-epc.h file.
Thanks Alan, well spotted!

Regards,
Gustavo

> 
> Thanks,
> Alan
>