From patchwork Fri Mar 24 11:05:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 13186667 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 16D23C76196 for ; Fri, 24 Mar 2023 11:06:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231522AbjCXLGH (ORCPT ); Fri, 24 Mar 2023 07:06:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55578 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230213AbjCXLGG (ORCPT ); Fri, 24 Mar 2023 07:06:06 -0400 Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58F6B23653; Fri, 24 Mar 2023 04:06:05 -0700 (PDT) Received: (Authenticated sender: miquel.raynal@bootlin.com) by mail.gandi.net (Postfix) with ESMTPSA id 822801C0019; Fri, 24 Mar 2023 11:06:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1679655964; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xpm9J1//h3pf1KRFo8vfe6W7cNzA/ZMeIybRxIKCmLs=; b=HNgt+9vjZ7rczNcxNcDA1sudpjxIgPVFLRga7uxvJvkNhqR7+dneVSo8HiAGEwGhkWw9r5 v2Pag+JLkeXR6GVfxWFARTJMnmh8NCl/5MzisPnziw6eIUlwz3zTxSbkCFAy6g6xL4y62p I+vD0MyHUTIBNO38vTyaMI9WJSDDJIA6Wc6Qr44ObzMxgA2FJvJv8iggxqDtqKDbW7eOMq ebIE+t/T4L+XDw1rUIt3lBa8nBQw3VKBSIIc0nerUWsiWEtF2GD0USTeQ+yQ3H4VB1j+ev E8iYTgWg8WiOu5WnquWgJGEK4aU3USwdTFLCSUnX7BwbBE7nx2q2Vs5MaW4b/Q== 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 , Guilhem Imberton , Thomas Petazzoni , Miquel Raynal Subject: [PATCH wpan-next 1/2] net: ieee802154: Handle limited devices with only datagram support Date: Fri, 24 Mar 2023 12:05:57 +0100 Message-Id: <20230324110558.90707-2-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230324110558.90707-1-miquel.raynal@bootlin.com> References: <20230324110558.90707-1-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 | 10 ++++++++++ 2 files changed, 13 insertions(+) diff --git a/include/net/cfg802154.h b/include/net/cfg802154.h index 0c2778a836db..e00057984489 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 0ecc49d9c8c9..052c1ecfa300 100644 --- a/net/ieee802154/nl802154.c +++ b/net/ieee802154/nl802154.c @@ -1417,6 +1417,11 @@ static int nl802154_trigger_scan(struct sk_buff *skb, struct genl_info *info) return -EINVAL; } + if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { + NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); + return -EOPNOTSUPP; + } + request = kzalloc(sizeof(*request), GFP_KERNEL); if (!request) return -ENOMEM; @@ -1584,6 +1589,11 @@ nl802154_send_beacons(struct sk_buff *skb, struct genl_info *info) return -EPERM; } + if (wpan_phy->flags & WPAN_PHY_FLAG_DATAGRAMS_ONLY) { + NL_SET_ERR_MSG(info->extack, "PHY only supports datagrams"); + return -EOPNOTSUPP; + } + request = kzalloc(sizeof(*request), GFP_KERNEL); if (!request) return -ENOMEM;