From patchwork Wed Jan 12 17:33:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 12711663 X-Patchwork-Delegate: kuba@kernel.org 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 3C9C7C433EF for ; Wed, 12 Jan 2022 17:36:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355794AbiALRgh (ORCPT ); Wed, 12 Jan 2022 12:36:37 -0500 Received: from relay7-d.mail.gandi.net ([217.70.183.200]:42183 "EHLO relay7-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355771AbiALReO (ORCPT ); Wed, 12 Jan 2022 12:34:14 -0500 Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id 766432000D; Wed, 12 Jan 2022 17:34:11 +0000 (UTC) From: Miquel Raynal To: Alexander Aring , Stefan Schmidt , linux-wpan@vger.kernel.org, "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org Cc: Michael Hennerich , Harry Morris , Varka Bhadram , Xue Liu , Alan Ott , David Girault , Romuald Despres , Frederic Blain , Nicolas Schodet , Thomas Petazzoni , linux-wireless@vger.kernel.org, Miquel Raynal Subject: [wpan-next v2 27/27] net: ieee802154: ca8210: Refuse most of the scan operations Date: Wed, 12 Jan 2022 18:33:12 +0100 Message-Id: <20220112173312.764660-28-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220112173312.764660-1-miquel.raynal@bootlin.com> References: <20220112173312.764660-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org The Cascada 8210 hardware transceiver is kind of a hardMAC which interfaces with the softMAC and in practice does not support sending anything else than dataframes. This means we cannot send any BEACON_REQ during active scans nor any BEACON in general. Refuse these operations officially so that the user is aware of the limitation. Signed-off-by: Miquel Raynal --- drivers/net/ieee802154/ca8210.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/net/ieee802154/ca8210.c b/drivers/net/ieee802154/ca8210.c index d3a9e4fe05f4..49c274280e3c 100644 --- a/drivers/net/ieee802154/ca8210.c +++ b/drivers/net/ieee802154/ca8210.c @@ -2385,6 +2385,25 @@ static int ca8210_set_promiscuous_mode(struct ieee802154_hw *hw, const bool on) return link_to_linux_err(status); } +static int ca8210_enter_scan_mode(struct ieee802154_hw *hw, + struct cfg802154_scan_request *request) +{ + /* This xceiver can only send dataframes */ + if (request->type != NL802154_SCAN_PASSIVE) + return -EOPNOTSUPP; + + return 0; +} + +static int ca8210_enter_beacons_mode(struct ieee802154_hw *hw, + struct cfg802154_beacons_request *request) +{ + /* This xceiver can only send dataframes */ + return -EOPNOTSUPP; +} + +static void ca8210_exit_scan_beacons_mode(struct ieee802154_hw *hw) { } + static const struct ieee802154_ops ca8210_phy_ops = { .start = ca8210_start, .stop = ca8210_stop, @@ -2397,7 +2416,11 @@ static const struct ieee802154_ops ca8210_phy_ops = { .set_cca_ed_level = ca8210_set_cca_ed_level, .set_csma_params = ca8210_set_csma_params, .set_frame_retries = ca8210_set_frame_retries, - .set_promiscuous_mode = ca8210_set_promiscuous_mode + .set_promiscuous_mode = ca8210_set_promiscuous_mode, + .enter_scan_mode = ca8210_enter_scan_mode, + .exit_scan_mode = ca8210_exit_scan_beacons_mode, + .enter_beacons_mode = ca8210_enter_beacons_mode, + .exit_beacons_mode = ca8210_exit_scan_beacons_mode, }; /* Test/EVBME Interface */