From patchwork Sat Feb 6 12:55:50 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Parav Pandit X-Patchwork-Id: 377925 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 5A6BFC433DB for ; Sat, 6 Feb 2021 12:57:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 255B964E5B for ; Sat, 6 Feb 2021 12:57:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230051AbhBFM5Q (ORCPT ); Sat, 6 Feb 2021 07:57:16 -0500 Received: from hqnvemgate26.nvidia.com ([216.228.121.65]:16895 "EHLO hqnvemgate26.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229816AbhBFM4v (ORCPT ); Sat, 6 Feb 2021 07:56:51 -0500 Received: from hqmail.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, AES256-SHA) id ; Sat, 06 Feb 2021 04:56:09 -0800 Received: from sw-mtx-036.mtx.labs.mlnx (172.20.145.6) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Sat, 6 Feb 2021 12:56:08 +0000 From: Parav Pandit To: , , CC: Parav Pandit Subject: [PATCH net-next 6/7] netdevsim: Simulate port function set state for a PCI port Date: Sat, 6 Feb 2021 14:55:50 +0200 Message-ID: <20210206125551.8616-7-parav@nvidia.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210206125551.8616-1-parav@nvidia.com> References: <20210206125551.8616-1-parav@nvidia.com> MIME-Version: 1.0 X-Originating-IP: [172.20.145.6] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To HQMAIL107.nvidia.com (172.20.187.13) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1612616169; bh=gcpDPL8w2je/gqdmPrk4HwwoS/7BKh9oit9K83B6Tmk=; h=From:To:CC:Subject:Date:Message-ID:X-Mailer:In-Reply-To: References:MIME-Version:Content-Transfer-Encoding:Content-Type: X-Originating-IP:X-ClientProxiedBy; b=K6jcSK1SdnQWVCSYP2QA/98FVgyEy/P7Z8HnL3zlepZ6KxYuXlBGtmi/JSO80tNj2 RzWg9kycE5QTSvU2sDUCPFXsBt7ju9i6tUOb9VLt864YFNRU8vsDpNhifgT6qoHoRU EK+lB0OqBI19P2lgSZkxDllobIAzakGI7jXiQGqb3lNauqIn3cJDqGAwbb4sduw9+2 OOB+2394st5bmF9CWRgkGvs4AKynZLbT+GFkLezbVN+wmxYA17mfvPVa3enO7MXpPW p0scsqeOpRcVSDAoCuS8N+mPT92SOcQ0eqyYrv+Thkbnj9zoZquxG3feAjlDQS3i3q nFNbKyelO03KQ== Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Simulate port function state of a PCI port. This enables users to get and set the state of the PCI port function. Example of a PCI SF port which supports a port function: Create a device with ID=10 and one physical port. $ echo "10 1" > /sys/bus/netdevsim/new_device Add PCI PF port: $ devlink port add netdevsim/netdevsim10 flavour pcipf pfnum 2 netdevsim/netdevsim10/1: type eth netdev eth1 flavour pcipf controller 0 pfnum 2 external false splittable false function: hw_addr 00:00:00:00:00:00 $ devlink port add netdevsim/netdevsim10 flavour pcisf pfnum 2 netdevsim/netdevsim10/2: type eth netdev eth2 flavour pcisf controller 0 pfnum 2 sfnum 0 splittable false function: hw_addr 00:00:00:00:00:00 Show devlink port: $ devlink port show netdevsim/netdevsim10/2 netdevsim/netdevsim10/2: type eth netdev eth2 flavour pcisf controller 0 pfnum 2 sfnum 0 splittable false function: hw_addr 00:00:00:00:00:00 state inactive opstate detached Set the MAC address and activate the function: $ devlink port function set netdevsim/netdevsim10/2 hw_addr 00:11:22:33:44:55 state active Show the port and function attributes in JSON format: $ devlink port show netdevsim/netdevsim10/2 -jp { "port": { "netdevsim/netdevsim10/2": { "type": "eth", "netdev": "eth2", "flavour": "pcisf", "controller": 0, "pfnum": 2, "sfnum": 0, "splittable": false, "function": { "hw_addr": "00:11:22:33:44:55", "state": "active", "opstate": "attached" } } } } Signed-off-by: Parav Pandit --- drivers/net/netdevsim/dev.c | 1 + drivers/net/netdevsim/netdevsim.h | 4 ++++ drivers/net/netdevsim/port_function.c | 15 +++++++++++++++ 3 files changed, 20 insertions(+) diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 9f2164ea89cd..e8b6bd22fb1f 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -910,6 +910,7 @@ static const struct devlink_ops nsim_dev_devlink_ops = { .port_function_hw_addr_get = nsim_dev_port_fn_hw_addr_get, .port_function_hw_addr_set = nsim_dev_port_fn_hw_addr_set, .port_fn_state_get = nsim_dev_port_fn_state_get, + .port_fn_state_set = nsim_dev_port_fn_state_set, }; #define NSIM_DEV_MAX_MACS_DEFAULT 32 diff --git a/drivers/net/netdevsim/netdevsim.h b/drivers/net/netdevsim/netdevsim.h index c0544d93e1e8..93bfa3e946b2 100644 --- a/drivers/net/netdevsim/netdevsim.h +++ b/drivers/net/netdevsim/netdevsim.h @@ -333,3 +333,7 @@ int nsim_dev_port_fn_state_get(struct devlink *devlink, enum devlink_port_fn_state *state, enum devlink_port_fn_opstate *opstate, struct netlink_ext_ack *extack); +int nsim_dev_port_fn_state_set(struct devlink *devlink, + struct devlink_port *port, + enum devlink_port_fn_state state, + struct netlink_ext_ack *extack); diff --git a/drivers/net/netdevsim/port_function.c b/drivers/net/netdevsim/port_function.c index 10c692b8aea2..8e8e7d6df8a1 100644 --- a/drivers/net/netdevsim/port_function.c +++ b/drivers/net/netdevsim/port_function.c @@ -504,3 +504,18 @@ int nsim_dev_port_fn_state_get(struct devlink *devlink, *opstate = DEVLINK_PORT_FN_OPSTATE_ATTACHED; return 0; } + +int nsim_dev_port_fn_state_set(struct devlink *devlink, + struct devlink_port *dl_port, + enum devlink_port_fn_state state, + struct netlink_ext_ack *extack) +{ + struct nsim_dev *nsim_dev = devlink_priv(devlink); + struct nsim_port_fn *port; + + port = nsim_dev_to_port_fn(nsim_dev, dl_port, extack); + if (IS_ERR(port)) + return PTR_ERR(port); + port->state = state; + return 0; +}