From nobody Fri Oct 3 03:01:34 2025 Received: from fllvem-ot04.ext.ti.com (fllvem-ot04.ext.ti.com [198.47.19.246]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 75FA52EFD86; Mon, 8 Sep 2025 09:08:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.246 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757322526; cv=none; b=eYsBQ5ucTubCee0T7ZFxtkwPHqX6ep9f29nuDMTVL1bQiyr8Nwen3G0hCpQOg83E8/hdehGD3es6bWJC5C3hdINdRLp5GDb33M0yNscqc/oXpGP2VhsbA/9OnqEf0tAkbtue0BZnZwafcEGltv7nMJWN4Svi71cCH0dsKzyg0Qs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757322526; c=relaxed/simple; bh=ytBbUnaDkglyk2NDImzK3GXjIWhFr7lNsSUjkaAjKDI=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=IDUYp8fSR5uP1V2dCHscd13VCTAX9C0dO3McRii0Gz3dbSvUb6+tIozes8IWNl/xxCd5phhQ87FBeZXrxQrmN2qpUNOsxcwWvuE1HxNIJXMwAKnSJtR2Mo9Mo7NaYJwAzlPZOMA8xBJcn1GWWXgVIhjXXtws/36SiZNNbAZcGWE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=Jw3khlMQ; arc=none smtp.client-ip=198.47.19.246 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="Jw3khlMQ" Received: from fllvem-sh04.itg.ti.com ([10.64.41.54]) by fllvem-ot04.ext.ti.com (8.15.2/8.15.2) with ESMTP id 588983II022084; Mon, 8 Sep 2025 04:08:03 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1757322483; bh=V4uev4C+g/5gO4Z/wqqE75ia4mxFhVAjpWTE6A0mn/c=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=Jw3khlMQAdWYHM/adfiiEHwW3doYdEl8t7w+vVcr9U1lNFwvdqBGM9YxYhecN50px /Ur5lZYmohKbvw51fIg2qPkK6NZI7wKMmV+DJMqd3qhCcDHv/Fs7339OBw0SbjQQrH xlQO7dep9EcXqbMOcXmWYpflz1M3YingeS5mtRYw= Received: from DLEE103.ent.ti.com (dlee103.ent.ti.com [157.170.170.33]) by fllvem-sh04.itg.ti.com (8.18.1/8.18.1) with ESMTPS id 588982mA3666559 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA256 bits=128 verify=FAIL); Mon, 8 Sep 2025 04:08:02 -0500 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE103.ent.ti.com (157.170.170.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.55; Mon, 8 Sep 2025 04:08:01 -0500 Received: from fllvem-mr07.itg.ti.com (10.64.41.89) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.55 via Frontend Transport; Mon, 8 Sep 2025 04:08:01 -0500 Received: from fllv0122.itg.ti.com (fllv0122.itg.ti.com [10.247.120.72]) by fllvem-mr07.itg.ti.com (8.18.1/8.18.1) with ESMTP id 588981dg2355846; Mon, 8 Sep 2025 04:08:01 -0500 Received: from localhost (danish-tpc.dhcp.ti.com [172.24.231.152]) by fllv0122.itg.ti.com (8.14.7/8.14.7) with ESMTP id 588980A6023041; Mon, 8 Sep 2025 04:08:01 -0500 From: MD Danish Anwar To: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Jonathan Corbet , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andrew Lunn , MD Danish Anwar , Mengyuan Lou , Luo Jie , Fan Gong , Lei Wei , Michael Ellerman , Lee Trager , Lorenzo Bianconi , Parthiban Veerasooran , Geert Uytterhoeven , Lukas Bulwahn CC: , , , , Subject: [PATCH net-next v3 5/7] net: rpmsg-eth: Add support for multicast filtering Date: Mon, 8 Sep 2025 14:37:44 +0530 Message-ID: <20250908090746.862407-6-danishanwar@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250908090746.862407-1-danishanwar@ti.com> References: <20250908090746.862407-1-danishanwar@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea Content-Type: text/plain; charset="utf-8" Add support for multicast filtering for RPMSG ETH driver. Implement the ndo_set_rx_mode callback as icve_set_rx_mode() API. rx_mode_workqueue is initialized in rpmsg_eth_probe() and queued in rpmsg_eth_set_rx_mode(). Signed-off-by: MD Danish Anwar --- drivers/net/ethernet/rpmsg_eth.c | 63 ++++++++++++++++++++++++++++++++ drivers/net/ethernet/rpmsg_eth.h | 12 ++++++ 2 files changed, 75 insertions(+) diff --git a/drivers/net/ethernet/rpmsg_eth.c b/drivers/net/ethernet/rpmsg_= eth.c index 211d1499f3d7..d491e28ce421 100644 --- a/drivers/net/ethernet/rpmsg_eth.c +++ b/drivers/net/ethernet/rpmsg_eth.c @@ -68,6 +68,11 @@ static int create_request(struct rpmsg_eth_common *commo= n, ether_addr_copy(msg->req_msg.mac_addr.addr, common->port->ndev->dev_addr); break; + case RPMSG_ETH_REQ_ADD_MC_ADDR: + case RPMSG_ETH_REQ_DEL_MC_ADDR: + ether_addr_copy(msg->req_msg.mac_addr.addr, + common->mcast_addr); + break; case RPMSG_ETH_NOTIFY_PORT_UP: case RPMSG_ETH_NOTIFY_PORT_DOWN: msg->msg_hdr.msg_type =3D RPMSG_ETH_NOTIFY_MSG; @@ -119,6 +124,22 @@ static int rpmsg_eth_create_send_request(struct rpmsg_= eth_common *common, return ret; } =20 +static int rpmsg_eth_add_mc_addr(struct net_device *ndev, const u8 *addr) +{ + struct rpmsg_eth_common *common =3D rpmsg_eth_ndev_to_common(ndev); + + ether_addr_copy(common->mcast_addr, addr); + return rpmsg_eth_create_send_request(common, RPMSG_ETH_REQ_ADD_MC_ADDR, t= rue); +} + +static int rpmsg_eth_del_mc_addr(struct net_device *ndev, const u8 *addr) +{ + struct rpmsg_eth_common *common =3D rpmsg_eth_ndev_to_common(ndev); + + ether_addr_copy(common->mcast_addr, addr); + return rpmsg_eth_create_send_request(common, RPMSG_ETH_REQ_DEL_MC_ADDR, t= rue); +} + static void rpmsg_eth_state_machine(struct work_struct *work) { struct delayed_work *dwork =3D to_delayed_work(work); @@ -201,6 +222,10 @@ static int rpmsg_eth_rpmsg_cb(struct rpmsg_device *rpd= ev, void *data, int len, break; case RPMSG_ETH_RESP_SET_MAC_ADDR: break; + case RPMSG_ETH_RESP_ADD_MC_ADDR: + case RPMSG_ETH_RESP_DEL_MC_ADDR: + complete(&common->sync_msg); + break; } break; case RPMSG_ETH_NOTIFY_MSG: @@ -393,10 +418,15 @@ static int rpmsg_eth_ndo_stop(struct net_device *ndev) =20 netif_carrier_off(port->ndev); =20 + __dev_mc_unsync(ndev, rpmsg_eth_del_mc_addr); + __hw_addr_init(&common->mc_list); + cancel_delayed_work_sync(&common->state_work); timer_delete_sync(&port->rx_timer); napi_disable(&port->rx_napi); =20 + cancel_work_sync(&common->rx_mode_work); + return 0; } =20 @@ -453,10 +483,35 @@ static int rpmsg_eth_set_mac_address(struct net_devic= e *ndev, void *addr) return ret; } =20 +static void rpmsg_eth_ndo_set_rx_mode_work(struct work_struct *work) +{ + struct rpmsg_eth_common *common; + struct net_device *ndev; + + common =3D container_of(work, struct rpmsg_eth_common, rx_mode_work); + ndev =3D common->port->ndev; + + /* make a mc list copy */ + netif_addr_lock_bh(ndev); + __hw_addr_sync(&common->mc_list, &ndev->mc, ndev->addr_len); + netif_addr_unlock_bh(ndev); + + __hw_addr_sync_dev(&common->mc_list, ndev, rpmsg_eth_add_mc_addr, + rpmsg_eth_del_mc_addr); +} + +static void rpmsg_eth_set_rx_mode(struct net_device *ndev) +{ + struct rpmsg_eth_common *common =3D rpmsg_eth_ndev_to_common(ndev); + + queue_work(common->cmd_wq, &common->rx_mode_work); +} + static const struct net_device_ops rpmsg_eth_netdev_ops =3D { .ndo_open =3D rpmsg_eth_ndo_open, .ndo_stop =3D rpmsg_eth_ndo_stop, .ndo_start_xmit =3D rpmsg_eth_start_xmit, + .ndo_set_rx_mode =3D rpmsg_eth_set_rx_mode, .ndo_set_mac_address =3D rpmsg_eth_set_mac_address, }; =20 @@ -533,6 +588,13 @@ static int rpmsg_eth_probe(struct rpmsg_device *rpdev) INIT_DELAYED_WORK(&common->state_work, rpmsg_eth_state_machine); init_completion(&common->sync_msg); =20 + __hw_addr_init(&common->mc_list); + INIT_WORK(&common->rx_mode_work, rpmsg_eth_ndo_set_rx_mode_work); + common->cmd_wq =3D create_singlethread_workqueue("rpmsg_eth_rx_work"); + if (!common->cmd_wq) { + dev_err(dev, "Failure requesting workqueue\n"); + return -ENOMEM; + } /* Register the network device */ ret =3D rpmsg_eth_init_ndev(common); if (ret) @@ -548,6 +610,7 @@ static void rpmsg_eth_remove(struct rpmsg_device *rpdev) =20 netif_napi_del(&port->rx_napi); timer_delete_sync(&port->rx_timer); + destroy_workqueue(common->cmd_wq); =20 dev_dbg(&rpdev->dev, "rpmsg-eth client driver is removed\n"); } diff --git a/drivers/net/ethernet/rpmsg_eth.h b/drivers/net/ethernet/rpmsg_= eth.h index b741407b216b..09fc6528daa5 100644 --- a/drivers/net/ethernet/rpmsg_eth.h +++ b/drivers/net/ethernet/rpmsg_eth.h @@ -57,10 +57,14 @@ enum rpmsg_eth_rpmsg_type { /* Request types */ RPMSG_ETH_REQ_SHM_INFO =3D 0, RPMSG_ETH_REQ_SET_MAC_ADDR, + RPMSG_ETH_REQ_ADD_MC_ADDR, + RPMSG_ETH_REQ_DEL_MC_ADDR, =20 /* Response types */ RPMSG_ETH_RESP_SHM_INFO, RPMSG_ETH_RESP_SET_MAC_ADDR, + RPMSG_ETH_RESP_ADD_MC_ADDR, + RPMSG_ETH_RESP_DEL_MC_ADDR, =20 /* Notification types */ RPMSG_ETH_NOTIFY_PORT_UP, @@ -219,6 +223,10 @@ enum rpmsg_eth_state { * @state: Interface state * @state_work: Delayed work for state machine * @sync_msg: Completion for synchronous message + * @rx_mode_work: Work structure for rx mode + * @cmd_wq: Workqueue for commands + * @mc_list: List of multicast addresses + * @mcast_addr: Multicast address filter */ struct rpmsg_eth_common { struct rpmsg_device *rpdev; @@ -236,6 +244,10 @@ struct rpmsg_eth_common { struct mutex state_lock; struct delayed_work state_work; struct completion sync_msg; + struct work_struct rx_mode_work; + struct workqueue_struct *cmd_wq; + struct netdev_hw_addr_list mc_list; + u8 mcast_addr[ETH_ALEN]; }; =20 /** --=20 2.34.1