From patchwork Tue Mar 22 22:44:53 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Oh X-Patchwork-Id: 8645931 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 57CBAC0553 for ; Tue, 22 Mar 2016 22:45:46 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 987E22038A for ; Tue, 22 Mar 2016 22:45:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8FE5520397 for ; Tue, 22 Mar 2016 22:45:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752981AbcCVWpo (ORCPT ); Tue, 22 Mar 2016 18:45:44 -0400 Received: from wolverine02.qualcomm.com ([199.106.114.251]:7508 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752891AbcCVWpj (ORCPT ); Tue, 22 Mar 2016 18:45:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=qca.qualcomm.com; i=@qca.qualcomm.com; q=dns/txt; s=qcdkim; t=1458686739; x=1490222739; h=from:to:cc:subject:date:message-id:mime-version; bh=tOziLY+P6Fu74CeX+VaWGu2gsU54cbSK5pcBd/zkKCY=; b=BmlXXsfj5BS/xcwUWThicYpBvV3QOIhXu1vZdZjECxlMmbmXXl6QgfXJ S36HaCFmc1jOAQiE2N2Itf076NTqons89sRbWkNgHTDO1ehtk2UBt7Qm7 qPsCip3I+1DWDn6BaTEOSyfNky5IahAjlm6pKn4/Mvv07EpEzY0jRAPzt g=; X-IronPort-AV: E=Sophos;i="5.24,379,1455004800"; d="scan'208";a="273639333" Received: from ironmsg02-l-new.qualcomm.com (HELO ironmsg02-L.qualcomm.com) ([10.53.140.109]) by wolverine02.qualcomm.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 22 Mar 2016 15:45:38 -0700 X-IronPort-AV: E=McAfee;i="5700,7163,8112"; a="662121702" Received: from nasanexm01b.na.qualcomm.com ([10.85.0.82]) by ironmsg02-L.qualcomm.com with ESMTP/TLS/RC4-SHA; 22 Mar 2016 15:45:38 -0700 Received: from linux-poh.qualcomm.com (10.80.80.8) by NASANEXM01B.na.qualcomm.com (10.85.0.82) with Microsoft SMTP Server (TLS) id 15.0.1130.7; Tue, 22 Mar 2016 15:45:37 -0700 From: Peter Oh To: CC: Subject: [PATCH v2] ath10k: parse Rx MAC timestamp in mgmt frame for FW 10.4 Date: Tue, 22 Mar 2016 15:44:53 -0700 Message-ID: <20caae0068a19c546f87ef4a25e3651af92c02ab.1458686620.git.poh@qca.qualcomm.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: NASANEXM01E.na.qualcomm.com (10.85.0.31) To NASANEXM01B.na.qualcomm.com (10.85.0.82) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID,T_RP_MATCHES_RCVD,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Check and parse Rx MAC timestamp when firmware sets its flag to status variable. 10.4 firmware adds it in Rx beacon frame only at this moment. Drivers and mac80211 may utilize it to detect such clockdrift or beacon collision and use the result for beacon collision avoidance. Signed-off-by: Peter Oh --- v2: * Rebased. no code changes. drivers/net/wireless/ath/ath10k/wmi.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c index 9137566..9977876 100644 --- a/drivers/net/wireless/ath/ath10k/wmi.c +++ b/drivers/net/wireless/ath/ath10k/wmi.c @@ -2191,6 +2191,8 @@ static int ath10k_wmi_10_4_op_pull_mgmt_rx_ev(struct ath10k *ar, struct wmi_10_4_mgmt_rx_hdr *ev_hdr; size_t pull_len; u32 msdu_len; + struct wmi_mgmt_rx_ext_info *ext_info; + u32 len; ev = (struct wmi_10_4_mgmt_rx_event *)skb->data; ev_hdr = &ev->hdr; @@ -2211,6 +2213,13 @@ static int ath10k_wmi_10_4_op_pull_mgmt_rx_ev(struct ath10k *ar, if (skb->len < msdu_len) return -EPROTO; + if (le32_to_cpu(arg->status) & WMI_RX_STATUS_EXT_INFO) { + len = ALIGN(le32_to_cpu(arg->buf_len), 4); + ext_info = (struct wmi_mgmt_rx_ext_info *)(skb->data + len); + memcpy(&arg->ext_info, ext_info, + sizeof(struct wmi_mgmt_rx_ext_info)); + } + /* Make sure bytes added for padding are removed. */ skb_trim(skb, msdu_len);