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From: Parav Pandit <parav@mellanox.com>
To: alex.williamson@redhat.com, jiri@mellanox.com,
	kwankhede@nvidia.com, cohuck@redhat.com, davem@davemloft.net
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, Parav Pandit <parav@mellanox.com>
Subject: [PATCH v1 5/5] mtty: Optionally support mtty alias
Date: Tue, 27 Aug 2019 14:16:54 -0500	[thread overview]
Message-ID: <20190827191654.41161-6-parav@mellanox.com> (raw)
In-Reply-To: <20190827191654.41161-1-parav@mellanox.com>

Provide a module parameter to set alias length to optionally generate
mdev alias.

Example to request mdev alias.
$ modprobe mtty alias_length=12

Signed-off-by: Parav Pandit <parav@mellanox.com>
---
 samples/vfio-mdev/mtty.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/samples/vfio-mdev/mtty.c b/samples/vfio-mdev/mtty.c
index 92e770a06ea2..92208245b057 100644
--- a/samples/vfio-mdev/mtty.c
+++ b/samples/vfio-mdev/mtty.c
@@ -1410,6 +1410,15 @@ static struct attribute_group *mdev_type_groups[] = {
 	NULL,
 };
 
+static unsigned int mtty_alias_length;
+module_param_named(alias_length, mtty_alias_length, uint, 0444);
+MODULE_PARM_DESC(alias_length, "mdev alias length; default=0");
+
+static unsigned int mtty_get_alias_length(void)
+{
+	return mtty_alias_length;
+}
+
 static const struct mdev_parent_ops mdev_fops = {
 	.owner                  = THIS_MODULE,
 	.dev_attr_groups        = mtty_dev_groups,
@@ -1422,6 +1431,7 @@ static const struct mdev_parent_ops mdev_fops = {
 	.read                   = mtty_read,
 	.write                  = mtty_write,
 	.ioctl		        = mtty_ioctl,
+	.get_alias_length	= mtty_get_alias_length
 };
 
 static void mtty_device_release(struct device *dev)
-- 
2.19.2


  parent reply	other threads:[~2019-08-27 19:17 UTC|newest]

Thread overview: 96+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-26 20:41 [PATCH 0/4] Introduce variable length mdev alias Parav Pandit
2019-08-26 20:41 ` [PATCH 1/4] mdev: Introduce sha1 based " Parav Pandit
2019-08-27  1:44   ` Alex Williamson
2019-08-27  1:51     ` Alex Williamson
2019-08-27  4:24     ` Parav Pandit
2019-08-27 10:24   ` Cornelia Huck
2019-08-27 11:12     ` Parav Pandit
2019-08-27 11:24       ` Cornelia Huck
2019-08-27 11:33         ` Parav Pandit
2019-08-27 11:41           ` Cornelia Huck
2019-08-27 11:57             ` Parav Pandit
2019-08-27 13:35               ` Cornelia Huck
2019-08-27 16:50                 ` Alex Williamson
2019-08-27 11:16     ` Parav Pandit
2019-08-26 20:41 ` [PATCH 2/4] mdev: Make mdev alias unique among all mdevs Parav Pandit
2019-08-26 23:02   ` Mark Bloch
2019-08-27  4:28     ` Parav Pandit
2019-08-27 15:23       ` Alex Williamson
2019-08-27 16:16         ` Parav Pandit
2019-08-27 10:29   ` Cornelia Huck
2019-08-27 11:08     ` Parav Pandit
2019-08-27 11:29       ` Cornelia Huck
2019-08-27 15:28         ` Alex Williamson
2019-08-27 15:39           ` Cornelia Huck
2019-08-27 16:13           ` Parav Pandit
2019-08-27 16:24             ` Alex Williamson
2019-08-27 18:54               ` Parav Pandit
2019-08-26 20:41 ` [PATCH 3/4] mdev: Expose mdev alias in sysfs tree Parav Pandit
2019-08-27  1:53   ` Alex Williamson
2019-08-27  3:30     ` Parav Pandit
2019-08-27 10:47   ` Cornelia Huck
2019-08-27 11:07     ` Parav Pandit
2019-08-27 11:34       ` Cornelia Huck
2019-08-27 11:52         ` Parav Pandit
2019-08-27 11:55           ` Cornelia Huck
2019-08-27 12:00             ` Parav Pandit
2019-08-26 20:41 ` [PATCH 4/4] mtty: Optionally support mtty alias Parav Pandit
2019-08-27 13:11 ` [PATCH 0/4] Introduce variable length mdev alias Parav Pandit
2019-08-27 13:31   ` Cornelia Huck
2019-08-27 17:48   ` Alex Williamson
2019-08-27 18:11     ` Parav Pandit
2019-08-27 19:16 ` [PATCH v1 0/5] " Parav Pandit
2019-08-27 19:16   ` [PATCH v1 1/5] mdev: Introduce sha1 based " Parav Pandit
2019-08-28 21:25     ` Alex Williamson
2019-08-28 21:34       ` Alex Williamson
2019-08-29  9:07         ` Parav Pandit
2019-08-29  9:06       ` Parav Pandit
2019-08-27 19:16   ` [PATCH v1 2/5] mdev: Make mdev alias unique among all mdevs Parav Pandit
2019-08-28 21:36     ` Alex Williamson
2019-08-29  9:07       ` Parav Pandit
2019-08-27 19:16   ` [PATCH v1 3/5] mdev: Expose mdev alias in sysfs tree Parav Pandit
2019-08-27 19:16   ` [PATCH v1 4/5] mdev: Update sysfs documentation Parav Pandit
2019-08-27 19:16   ` Parav Pandit [this message]
2019-08-29 11:18 ` [PATCH v2 0/6] Introduce variable length mdev alias Parav Pandit
2019-08-29 11:18   ` [PATCH v2 1/6] mdev: Introduce sha1 based " Parav Pandit
2019-08-29 12:26     ` Yunsheng Lin
2019-08-30  2:27       ` Parav Pandit
2019-08-30  9:17     ` Cornelia Huck
2019-08-30 12:33       ` Parav Pandit
2019-08-30 12:39         ` Cornelia Huck
2019-08-30 12:58           ` Parav Pandit
2019-08-30 14:02             ` Cornelia Huck
2019-08-30 15:45               ` Parav Pandit
2019-09-02 14:46                 ` Cornelia Huck
2019-09-03  3:47                   ` Parav Pandit
2019-08-29 11:19   ` [PATCH v2 2/6] mdev: Make mdev alias unique among all mdevs Parav Pandit
2019-08-29 12:31     ` Yunsheng Lin
2019-08-30 12:40     ` Cornelia Huck
2019-08-30 12:59       ` Parav Pandit
2019-08-29 11:19   ` [PATCH v2 3/6] mdev: Expose mdev alias in sysfs tree Parav Pandit
2019-08-29 11:19   ` [PATCH v2 4/6] mdev: Introduce an API mdev_alias Parav Pandit
2019-08-29 11:19   ` [PATCH v2 5/6] mdev: Update sysfs documentation Parav Pandit
2019-08-30 12:49     ` Cornelia Huck
2019-08-30 13:10       ` Parav Pandit
2019-09-02 14:36         ` Cornelia Huck
2019-09-03  3:53           ` Parav Pandit
2019-08-29 11:19   ` [PATCH v2 6/6] mtty: Optionally support mtty alias Parav Pandit
2019-09-02  4:24 ` [PATCH v3 0/5] Introduce variable length mdev alias Parav Pandit
2019-09-02  4:24   ` [PATCH v3 1/5] mdev: Introduce sha1 based " Parav Pandit
2019-09-17 10:03     ` Cornelia Huck
2019-09-02  4:24   ` [PATCH v3 2/5] mdev: Make mdev alias unique among all mdevs Parav Pandit
2019-09-17 10:04     ` Cornelia Huck
2019-09-02  4:24   ` [PATCH v3 3/5] mdev: Expose mdev alias in sysfs tree Parav Pandit
2019-09-17 10:08     ` Cornelia Huck
2019-09-02  4:24   ` [PATCH v3 4/5] mdev: Introduce an API mdev_alias Parav Pandit
2019-09-17 10:10     ` Cornelia Huck
2019-09-02  4:24   ` [PATCH v3 5/5] mtty: Optionally support mtty alias Parav Pandit
2019-09-09 20:42   ` [PATCH v3 0/5] Introduce variable length mdev alias Parav Pandit
2019-09-11 13:56     ` Alex Williamson
2019-09-11 15:30       ` Parav Pandit
2019-09-11 16:29         ` Cornelia Huck
2019-09-11 16:38         ` Parav Pandit
2019-09-13 21:32           ` Alex Williamson
2019-09-13 23:19             ` Parav Pandit
2019-09-17 10:13   ` Cornelia Huck
2019-09-18 17:15     ` Parav Pandit

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