From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA9DDC3A5A3 for ; Tue, 27 Aug 2019 19:17:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8280C2186A for ; Tue, 27 Aug 2019 19:17:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731082AbfH0TRP (ORCPT ); Tue, 27 Aug 2019 15:17:15 -0400 Received: from mail-il-dmz.mellanox.com ([193.47.165.129]:38908 "EHLO mellanox.co.il" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731076AbfH0TRN (ORCPT ); Tue, 27 Aug 2019 15:17:13 -0400 Received: from Internal Mail-Server by MTLPINE1 (envelope-from parav@mellanox.com) with ESMTPS (AES256-SHA encrypted); 27 Aug 2019 22:17:09 +0300 Received: from sw-mtx-036.mtx.labs.mlnx (sw-mtx-036.mtx.labs.mlnx [10.12.150.149]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id x7RJGuGv026842; Tue, 27 Aug 2019 22:17:08 +0300 From: Parav Pandit 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 Subject: [PATCH v1 5/5] mtty: Optionally support mtty alias Date: Tue, 27 Aug 2019 14:16:54 -0500 Message-Id: <20190827191654.41161-6-parav@mellanox.com> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190827191654.41161-1-parav@mellanox.com> References: <20190826204119.54386-1-parav@mellanox.com> <20190827191654.41161-1-parav@mellanox.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org 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 --- 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