From patchwork Thu Jul 30 10:51:53 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Kondratiev X-Patchwork-Id: 6901551 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 ABD29C05AC for ; Thu, 30 Jul 2015 10:55:28 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CA7E620575 for ; Thu, 30 Jul 2015 10:55:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C435E2057F for ; Thu, 30 Jul 2015 10:55:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755544AbbG3KzZ (ORCPT ); Thu, 30 Jul 2015 06:55:25 -0400 Received: from sabertooth02.qualcomm.com ([65.197.215.38]:36497 "EHLO sabertooth02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755432AbbG3Kyn (ORCPT ); Thu, 30 Jul 2015 06:54:43 -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=1438253684; x=1469789684; h=from:cc:to:subject:date:message-id:in-reply-to: references; bh=awW7pYkqkz3oyJWdKGd2qEriWClIq0IjDwArjav+3Y4=; b=f1mrv9F34BxhYFgT3eJXyAgloYOJx1zQzjL19KDu9wjH2zL8C8PzYMXz K2G/zgmUa2jdTMdxzTGLLvJbYV2qzBsga+1RaXFxEnRIgC8DcR32OBPlI t5lNghKJ46u2LKn8QnJU2uagPWeJ/wRxNS0sIBqtqxFllS3eM7m29Gs1/ I=; X-IronPort-AV: E=McAfee;i="5700,7163,7877"; a="94860442" Received: from ironmsg02-r.qualcomm.com ([172.30.46.16]) by sabertooth02.qualcomm.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 30 Jul 2015 03:54:42 -0700 From: Vladimir Kondratiev Cc: Vladimir Kondratiev , linux-wireless@vger.kernel.org, wil6210@qca.qualcomm.com X-IronPort-AV: E=Sophos;i="5.15,576,1432623600"; d="scan'208";a="523804994" Received: from lx-wigig-72.mea.qualcomm.com ([10.18.134.58]) by ironmsg02-R.qualcomm.com with ESMTP; 30 Jul 2015 03:52:19 -0700 To: Kalle Valo Subject: [PATCH v3 05/19] wil6210: wait for del_station to complete Date: Thu, 30 Jul 2015 13:51:53 +0300 Message-Id: <1438253527-3372-6-git-send-email-qca_vkondrat@qca.qualcomm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1438253527-3372-1-git-send-email-qca_vkondrat@qca.qualcomm.com> References: <1438253527-3372-1-git-send-email-qca_vkondrat@qca.qualcomm.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,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 Multiple del_station requests may be sent to the driver by the supplicant when turning down AP. This may overflow mailbox between the FW and ucode Wait till disconnect of one STA completed before sending next command. Signed-off-by: Vladimir Kondratiev --- drivers/net/wireless/ath/wil6210/wmi.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/wil6210/wmi.c b/drivers/net/wireless/ath/wil6210/wmi.c index c759759..362ce7a 100644 --- a/drivers/net/wireless/ath/wil6210/wmi.c +++ b/drivers/net/wireless/ath/wil6210/wmi.c @@ -1129,15 +1129,42 @@ int wmi_get_temperature(struct wil6210_priv *wil, u32 *t_bb, u32 *t_rf) int wmi_disconnect_sta(struct wil6210_priv *wil, const u8 *mac, u16 reason) { + int rc; + u16 reason_code; struct wmi_disconnect_sta_cmd cmd = { .disconnect_reason = cpu_to_le16(reason), }; + struct { + struct wil6210_mbox_hdr_wmi wmi; + struct wmi_disconnect_event evt; + } __packed reply; ether_addr_copy(cmd.dst_mac, mac); wil_dbg_wmi(wil, "%s(%pM, reason %d)\n", __func__, mac, reason); - return wmi_send(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd)); + rc = wmi_call(wil, WMI_DISCONNECT_STA_CMDID, &cmd, sizeof(cmd), + WMI_DISCONNECT_EVENTID, &reply, sizeof(reply), 1000); + /* failure to disconnect in reasonable time treated as FW error */ + if (rc) { + wil_fw_error_recovery(wil); + return rc; + } + + /* call event handler manually after processing wmi_call, + * to avoid deadlock - disconnect event handler acquires wil->mutex + * while it is already held here + */ + reason_code = le16_to_cpu(reply.evt.protocol_reason_status); + + wil_dbg_wmi(wil, "Disconnect %pM reason [proto %d wmi %d]\n", + reply.evt.bssid, reason_code, + reply.evt.disconnect_reason); + + wil->sinfo_gen++; + wil6210_disconnect(wil, reply.evt.bssid, reason_code, true); + + return 0; } int wmi_addba(struct wil6210_priv *wil, u8 ringid, u8 size, u16 timeout)