From patchwork Fri Jul 1 14:30:49 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 12903455 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1DF8CC43334 for ; Fri, 1 Jul 2022 14:36:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230323AbiGAOg4 (ORCPT ); Fri, 1 Jul 2022 10:36:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56954 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231732AbiGAOgH (ORCPT ); Fri, 1 Jul 2022 10:36:07 -0400 Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 181BA42EE7; Fri, 1 Jul 2022 07:31:31 -0700 (PDT) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id E2578FF81C; Fri, 1 Jul 2022 14:31:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1656685889; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=a+M4RqfY+ocOOrxrHKUiJ1Db5HIuxHJ2cY1HB8kPzds=; b=EB0UEnelF5DEaSNDip2QZXyxnfvQOTemeuUbnbSa1p33M6yq9aNKkYrxZhVrC1ZX8OIH2+ X4S5/xJ8bfJrXWwOw/1fbNojSpmb8GVR9WZcA/E5KheNbKSGmySuyFoFR9dm3+LLmOHX/5 EA5o+r2I0MSVFATM2tzpaTI59xhpPexlPT0Y/ZLV/cDoocl/W4BR/NdkVI7dQP2itwi9iK +e0dxlIZS0HuM6VTBD/LZ04EPgG5h279QSWnSnV/eHj4Q/H9fbjZQRCaQoF3GxYG5g7Psd wkm+xcSnwJbXkhrfqnSVU4wOj3fRkxqzIwH+O6sU+cykDv8qfQszoTBTfSHDcA== From: Miquel Raynal To: Alexander Aring , Stefan Schmidt , linux-wpan@vger.kernel.org Cc: "David S. Miller" , Jakub Kicinski , Paolo Abeni , Eric Dumazet , netdev@vger.kernel.org, David Girault , Romuald Despres , Frederic Blain , Nicolas Schodet , Thomas Petazzoni , Miquel Raynal Subject: [PATCH wpan-next 17/20] net: ieee802154: Handle limited devices with only datagram support Date: Fri, 1 Jul 2022 16:30:49 +0200 Message-Id: <20220701143052.1267509-18-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220701143052.1267509-1-miquel.raynal@bootlin.com> References: <20220701143052.1267509-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wpan@vger.kernel.org Some devices, like HardMAC ones can be a bit limited in the way they handle mac commands. In particular, they might just not support it at all and instead only be able to transmit and receive regular data packets. In this case, they cannot be used for any of the internal management commands that we have introduced so far and must be flagged accordingly. Signed-off-by: Miquel Raynal --- include/net/cfg802154.h | 3 +++ net/ieee802154/nl802154.c | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h index d6ff60d900a9..20ac4df9dc7b 100644 --- a/include/net/cfg802154.h +++ b/include/net/cfg802154.h @@ -178,12 +178,15 @@ wpan_phy_cca_cmp(const struct wpan_phy_cca *a, const struct wpan_phy_cca *b) * setting. * @WPAN_PHY_FLAG_STATE_QUEUE_STOPPED: Indicates that the transmit queue was * temporarily stopped. + * @WPAN_PHY_FLAG_DATAGRAMS_ONLY: Indicates that transceiver is only able to + * send/receive datagrams. */ enum wpan_phy_flags { WPAN_PHY_FLAG_TXPOWER = BIT(1), WPAN_PHY_FLAG_CCA_ED_LEVEL = BIT(2), WPAN_PHY_FLAG_CCA_MODE = BIT(3), WPAN_PHY_FLAG_STATE_QUEUE_STOPPED = BIT(4), + WPAN_PHY_FLAG_DATAGRAMS_ONLY = BIT(5), }; struct wpan_phy { diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c index 00b03c33e826..b31a0bd36b08 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -1404,6 +1404,9 @@ static int nl802154_trigger_scan(struct sk_buff *skb, struct genl_info *info) if (wpan_dev->iftype == NL802154_IFTYPE_MONITOR) return -EPERM; + if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) + return -EOPNOTSUPP; + request = kzalloc(sizeof(*request), GFP_KERNEL); if (!request) return -ENOMEM; @@ -1585,6 +1588,9 @@ nl802154_send_beacons(struct sk_buff *skb, struct genl_info *info) return -EPERM; } + if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) + return -EOPNOTSUPP; + request = kzalloc(sizeof(*request), GFP_KERNEL); if (!request) return -ENOMEM;