From patchwork Wed Nov 8 13:36:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arend van Spriel X-Patchwork-Id: 10048525 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 3219C60247 for ; Wed, 8 Nov 2017 13:36:59 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 23B6B2A626 for ; Wed, 8 Nov 2017 13:36:59 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 189372A62A; Wed, 8 Nov 2017 13:36:59 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B94282A626 for ; Wed, 8 Nov 2017 13:36:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752685AbdKHNg4 (ORCPT ); Wed, 8 Nov 2017 08:36:56 -0500 Received: from rnd-relay.smtp.broadcom.com ([192.19.229.170]:36699 "EHLO rnd-relay.smtp.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752667AbdKHNgr (ORCPT ); Wed, 8 Nov 2017 08:36:47 -0500 Received: from mail-irv-17.broadcom.com (mail-irv-17.lvn.broadcom.net [10.75.224.233]) by rnd-relay.smtp.broadcom.com (Postfix) with ESMTP id BC83130C025; Wed, 8 Nov 2017 05:36:45 -0800 (PST) Received: from bld-bun-01.bun.broadcom.com (bld-bun-01.bun.broadcom.com [10.176.128.83]) by mail-irv-17.broadcom.com (Postfix) with ESMTP id 50CEB81EAD; Wed, 8 Nov 2017 05:36:45 -0800 (PST) Received: by bld-bun-01.bun.broadcom.com (Postfix, from userid 25152) id A5907B05133; Wed, 8 Nov 2017 14:36:42 +0100 (CET) From: Arend van Spriel To: Kalle Valo Cc: linux-wireless@vger.kernel.org, Arend Van Spriel Subject: [PATCH V2 1/7] brcmfmac: handle FWHALT mailbox indication Date: Wed, 8 Nov 2017 14:36:31 +0100 Message-Id: <1510148197-17851-2-git-send-email-arend.vanspriel@broadcom.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1510148197-17851-1-git-send-email-arend.vanspriel@broadcom.com> References: <1510148197-17851-1-git-send-email-arend.vanspriel@broadcom.com> Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Arend Van Spriel The firmware uses a mailbox to communicate to the host what is going on. In the driver we validate the bit received. Various people seen the following message: brcmfmac: brcmf_sdio_hostmail: Unknown mailbox data content: 0x40012 Bit 4 is cause of this message, but this actually indicates the firmware has halted. Handle this bit by giving a more meaningful error message. Reviewed-by: Hante Meuleman Reviewed-by: Pieter-Paul Giesberts Reviewed-by: Franky Lin Signed-off-by: Arend van Spriel --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 5adce0e..00de73d 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -260,10 +260,11 @@ struct rte_console { #define I_HMB_HOST_INT I_HMB_SW3 /* Miscellaneous Interrupt */ /* tohostmailboxdata */ -#define HMB_DATA_NAKHANDLED 1 /* retransmit NAK'd frame */ -#define HMB_DATA_DEVREADY 2 /* talk to host after enable */ -#define HMB_DATA_FC 4 /* per prio flowcontrol update flag */ -#define HMB_DATA_FWREADY 8 /* fw ready for protocol activity */ +#define HMB_DATA_NAKHANDLED 0x0001 /* retransmit NAK'd frame */ +#define HMB_DATA_DEVREADY 0x0002 /* talk to host after enable */ +#define HMB_DATA_FC 0x0004 /* per prio flowcontrol update flag */ +#define HMB_DATA_FWREADY 0x0008 /* fw ready for protocol activity */ +#define HMB_DATA_FWHALT 0x0010 /* firmware halted */ #define HMB_DATA_FCDATA_MASK 0xff000000 #define HMB_DATA_FCDATA_SHIFT 24 @@ -1094,6 +1095,10 @@ static u32 brcmf_sdio_hostmail(struct brcmf_sdio *bus) offsetof(struct sdpcmd_regs, tosbmailbox)); bus->sdcnt.f1regdata += 2; + /* dongle indicates the firmware has halted/crashed */ + if (hmb_data & HMB_DATA_FWHALT) + brcmf_err("mailbox indicates firmware halted\n"); + /* Dongle recomposed rx frames, accept them again */ if (hmb_data & HMB_DATA_NAKHANDLED) { brcmf_dbg(SDIO, "Dongle reports NAK handled, expect rtx of %d\n", @@ -1151,6 +1156,7 @@ static u32 brcmf_sdio_hostmail(struct brcmf_sdio *bus) HMB_DATA_NAKHANDLED | HMB_DATA_FC | HMB_DATA_FWREADY | + HMB_DATA_FWHALT | HMB_DATA_FCDATA_MASK | HMB_DATA_VERSION_MASK)) brcmf_err("Unknown mailbox data content: 0x%02x\n", hmb_data);