Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
From:   Alan Douglas <adouglas@cadence.com>
To:     Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
        "bhelgaas@google.com" <bhelgaas@google.com>,
        "lorenzo.pieralisi@arm.com" <lorenzo.pieralisi@arm.com>,
        "Joao.Pinto@synopsys.com" <Joao.Pinto@synopsys.com>,
        "jingoohan1@gmail.com" <jingoohan1@gmail.com>,
        "kishon@ti.com" <kishon@ti.com>,
        "jesper.nilsson@axis.com" <jesper.nilsson@axis.com>,
        "shawn.lin@rock-chips.com" <shawn.lin@rock-chips.com>
CC:     "linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
        "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: RE: [PATCH v9 10/12] pci_endpoint_test: Add 2 ioctl commands
Thread-Topic: [PATCH v9 10/12] pci_endpoint_test: Add 2 ioctl commands
Thread-Index: AQHUF6xIzGp0R8RdtEaRXdhJkPCEoKSIOtsQ
Date:   Tue, 10 Jul 2018 10:10:32 +0000
Message-ID: <MWHPR07MB35020A4BD96C8B34E9A0EB83D85B0@MWHPR07MB3502.namprd07.prod.outlook.com>
References: <cover.1531155252.git.gustavo.pimentel@synopsys.com>
 <185f0395d22083c04364cb81b4c2e2448fa89fb2.1531155252.git.gustavo.pimentel@synopsys.com>
In-Reply-To: <185f0395d22083c04364cb81b4c2e2448fa89fb2.1531155252.git.gustavo.pimentel@synopsys.com>
Accept-Language: en-GB, en-US
Content-Language: en-US
received-spf: None (protection.outlook.com: cadence.com does not designate
 permitted sender hosts)
spamdiagnosticoutput: 1:99
spamdiagnosticmetadata: NSPM
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0
X-MS-Exchange-CrossTenant-Network-Message-Id: 97f46a14-2396-4a57-0902-08d5e64d5f1f
X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Jul 2018 10:10:32.3951
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: d36035c5-6ce6-4662-a3dc-e762e61ae4c9
X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR07MB3134
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On 09 July 2018 18:43 Gustavo Pimentel wrote:
> Add MSI-X support and update driver documentation accordingly.
>=20
> Add 2 new IOCTL commands:
>  - Allow to reconfigure driver IRQ type in runtime.
>  - Allow to retrieve current driver IRQ type configured.
>=20
> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
> ---
> Change v2->v3:
>  - New patch file created base on the previous patch
> "misc: pci_endpoint_test: Add MSI-X support" patch file following
> Kishon's suggestion.
> Change v3->v4:
>  - Rebased to Lorenzo's master branch v4.18-rc1.
> Change v4->v5:
>  - Nothing changed, just to follow the patch set version.
> Change v5->v6:
>  - Moved PCITEST_SET_IRQTYPE and PCITEST_GET_IRQTYPE ioctl entries
> from patch #10 to here.
>  - Increased ioctl parameters range associated to
> drivers/misc/pci_endpoint_test.c driver.
> Change v6->v7:
>  - irq_type variable update just before returning the function.
> Change v7->v8:
>  - Re-sending the patch series.
> Change v8->v9:
>  - Added a extra parameter to pci_endpoint_test_alloc_irq_vectors,
> that specifies which irq type should be allocated.
>=20
>  Documentation/ioctl/ioctl-number.txt             |   2 +-
>  Documentation/misc-devices/pci-endpoint-test.txt |   3 +
>  drivers/misc/pci_endpoint_test.c                 | 176 +++++++++++++++++=
------
>  include/uapi/linux/pcitest.h                     |   2 +
>  4 files changed, 136 insertions(+), 47 deletions(-)
>=20
> diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/i=
octl-number.txt
> index 65259d4..c15c4f3 100644
> --- a/Documentation/ioctl/ioctl-number.txt
> +++ b/Documentation/ioctl/ioctl-number.txt
> @@ -166,7 +166,7 @@ Code  Seq#(hex)	Include File		Comments
>  'P'	all	linux/soundcard.h	conflict!
>  'P'	60-6F	sound/sscape_ioctl.h	conflict!
>  'P'	00-0F	drivers/usb/class/usblp.c	conflict!
> -'P'	01-07	drivers/misc/pci_endpoint_test.c	conflict!
> +'P'	01-09	drivers/misc/pci_endpoint_test.c	conflict!
>  'Q'	all	linux/soundcard.h
>  'R'	00-1F	linux/random.h		conflict!
>  'R'	01	linux/rfkill.h		conflict!
> diff --git a/Documentation/misc-devices/pci-endpoint-test.txt b/Documenta=
tion/misc-devices/pci-endpoint-test.txt
> index fdfa0f6..58ccca4 100644
> --- a/Documentation/misc-devices/pci-endpoint-test.txt
> +++ b/Documentation/misc-devices/pci-endpoint-test.txt
> @@ -28,6 +28,9 @@ ioctl
>  	      to be tested should be passed as argument.
>   PCITEST_MSIX: Tests message signalled interrupts. The MSI-X number
>  	      to be tested should be passed as argument.
> + PCITEST_SET_IRQTYPE: Changes driver IRQ type configuration. The IRQ typ=
e
> +	      should be passed as argument (0: Legacy, 1:MSI, 2:MSI-X).
> + PCITEST_GET_IRQTYPE: Gets driver IRQ type configuration.
I've tested this latest set of patches with the cadence ep driver, which
does not yet support MSI-X, and can confirm that setting, getting and using
legacy and MSI IRQ type IRQs is working correctly.  Setting MSI-X fails, as
expected.