From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MSGID_FROM_MTA_HEADER,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D073C2BB1D for ; Fri, 13 Mar 2020 10:51:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4A97B20724 for ; Fri, 13 Mar 2020 10:51:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=cypress.com header.i=@cypress.com header.b="nNgwrQpo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726553AbgCMKvR (ORCPT ); Fri, 13 Mar 2020 06:51:17 -0400 Received: from mail-dm6nam12on2136.outbound.protection.outlook.com ([40.107.243.136]:24880 "EHLO NAM12-DM6-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726528AbgCMKvR (ORCPT ); Fri, 13 Mar 2020 06:51:17 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=cm+RlDkhiv7PDp8mRJPToAlRX4U/AgehPiyBVAp+Y2pvMDNiQ67GfBo8GQwxwCavoUa4cFKD2w1zg/+yhtzeDgQzkB8UHlr0WXiRfBV4cPp6xGB5ReQWxfo2Ly3kzg+Ug1Ohxg/GIpmvK3r1aoeORC4ubGeOEpl48jvJ3vtwGau+az+9S0tAbioZ1pICjc4TjeOi0Z/KCgd9ln0VrbcScxnuBe2QvdZGlsqQijRgvtf9wd9OsUmwmsePW2JebQkR24o5MKn4Y8WmQMbTPNiBF03OZt8KfsqJ9J5Co2r1iPxgjnFM7CoN6pMJ0NGgooa+egL3GjsLMVi7tshEFAiXxg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=79EVXAVp3rOPASPlMccRmPR5sV0rZ/Pn7DBUJqEpEiY=; b=EVnrNd8I3ooZTgC3kh9ZIDEAUr9LD9v8U5es7JcAdE5TZkxFMt4yK7ja+7yVW6+1P+2AM5rCKPiDJ0KZyAAdneZY3rmFB0IopqvfdK7jGo0LGolGFw8GceNyrxgi+ZxQrWCtuBFRO/ZerFCIMU0bFlEwNO/ogKVWg5t5E1PSxEZFdnJ6vGsWZzVKUg9G+9SFSE8pXqviQPBkzDEI4U2JgwDb8U/shkl8giJ+W1bddM3QkiBXm6v+C3z2hyU0YuoONnqdROIKWlsfGJzpgycRjZDm7l6A5JjhHYkERk5/nOqnKvvQkiVc0WzHfU+ujCiPPUCzYkj6Bc8LwUvgVbgzXA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cypress.com; dmarc=pass action=none header.from=cypress.com; dkim=pass header.d=cypress.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cypress.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=79EVXAVp3rOPASPlMccRmPR5sV0rZ/Pn7DBUJqEpEiY=; b=nNgwrQpo/ZqEjWtve3/LsKc7CCzfCCgK4g0vG4Ttjh9arRNq06jO6fvZrNcwYPLDMGc4J39Pivw1RpirG2/UBX4KyodopEoQ3LJdQo50DeAQQK5mGAsio4kpUIn6AWS/mdtyqcrAfYcLvEfx6iTGTUD0jU1xKxuxEELqWDqrTts= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Chi-Hsien.Lin@cypress.com; Received: from BYAPR06MB4901.namprd06.prod.outlook.com (2603:10b6:a03:7a::30) by BYAPR06MB5303.namprd06.prod.outlook.com (2603:10b6:a03:cf::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2793.17; Fri, 13 Mar 2020 10:51:14 +0000 Received: from BYAPR06MB4901.namprd06.prod.outlook.com ([fe80::3cc3:7b1a:bd7b:a0a9]) by BYAPR06MB4901.namprd06.prod.outlook.com ([fe80::3cc3:7b1a:bd7b:a0a9%5]) with mapi id 15.20.2793.021; Fri, 13 Mar 2020 10:51:14 +0000 From: Chi-Hsien Lin To: linux-wireless@vger.kernel.org Cc: brcm80211-dev-list@broadcom.com, brcm80211-dev-list@cypress.com, Arend van Spriel , Franky Lin , Hante Meuleman , Wright Feng , Kalle Valo , Raveendran Somu , Chi-hsien Lin Subject: [PATCH V2 6/6] brcmfmac: To support printing USB console messages Date: Fri, 13 Mar 2020 05:50:20 -0500 Message-Id: <1584096620-101123-7-git-send-email-chi-hsien.lin@cypress.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1584096620-101123-1-git-send-email-chi-hsien.lin@cypress.com> References: <1584096620-101123-1-git-send-email-chi-hsien.lin@cypress.com> Content-Type: text/plain X-ClientProxiedBy: BL0PR02CA0054.namprd02.prod.outlook.com (2603:10b6:207:3d::31) To BYAPR06MB4901.namprd06.prod.outlook.com (2603:10b6:a03:7a::30) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from aremote02.aus.cypress.com (12.110.209.245) by BL0PR02CA0054.namprd02.prod.outlook.com (2603:10b6:207:3d::31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2793.17 via Frontend Transport; Fri, 13 Mar 2020 10:51:12 +0000 X-Mailer: git-send-email 2.1.0 X-Originating-IP: [12.110.209.245] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 448eb51c-e953-4c2b-d699-08d7c73c72ef X-MS-TrafficTypeDiagnostic: BYAPR06MB5303:|BYAPR06MB5303: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2089; X-Forefront-PRVS: 034119E4F6 X-Forefront-Antispam-Report: SFV:NSPM;SFS:(10019020)(346002)(39860400002)(376002)(396003)(366004)(136003)(199004)(6486002)(2906002)(54906003)(107886003)(4326008)(5660300002)(6666004)(316002)(15650500001)(2616005)(66946007)(66556008)(956004)(66476007)(6916009)(8936002)(81156014)(8676002)(81166006)(478600001)(26005)(36756003)(86362001)(52116002)(7696005)(186003)(16526019);DIR:OUT;SFP:1102;SCL:1;SRVR:BYAPR06MB5303;H:BYAPR06MB4901.namprd06.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1; Received-SPF: None (protection.outlook.com: cypress.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: BI9j0bKYOCPtan1GlU5n98C0ULIN1GTtdUxyY4NVIiDTRNRV8S5MzhgqZDoFM0AaSLJif+e6VQOv+yKNnWQ7tAYaO2/32qZJGgdLysGLAzBDNkM6SHJer+ht72+aNy8ZlHxQrrq1gQp8dy/hVCDUSgf9hk81g/JaufJMME4jJ9Wv6y6GcCPgZyN1YHxBM2DI6+wvb24nVWmhBKMzf1rcQYyvIe5Uz7O/WqLHS0rOZI6vBG9zvbhWQDms5puUHDdXwzTsY28cn2c3GJvmI6eM6WBal21Gsgb+Qk8z40ISkiKLtb8EAqVsU3nebNWLE3Fmq5jWOtfRG1rYZvNoshpA2FjEeV+2jXUSvF09/hEb2ZSqS15MreNwNEU+EuZgD6T3ZlW++SHuUuK7JyRnpwwFaTgNWwpzcnHfNkicY1FgA3Rg1HSPS3QA0bIfJECShPMv X-MS-Exchange-AntiSpam-MessageData: C4TIxQNJcxWDViinmfaOQkIhEDsWvncLDiHhWrHPArMS4QPYmky009awkkw5jbnwmj7e6TZsyhnf7mNJBe76A6alotf9NLktdkacRULdgqyDij8PPAvIUc/AdstZT0hZ0ZyIWg3h+FKCcjeaOOigGQ== X-OriginatorOrg: cypress.com X-MS-Exchange-CrossTenant-Network-Message-Id: 448eb51c-e953-4c2b-d699-08d7c73c72ef X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Mar 2020 10:51:14.1487 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 011addfc-2c09-450d-8938-e0bbc2dd2376 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: A0+Am3g4YObGQA6uLfwS6ohzzoZqM02a2dXwXYbbpCQhbwfuthQiikqbMitrkxcQ02nU37hnHi8eU8ebPnHhRA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR06MB5303 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Raveendran Somu This change is to add support for printing the firmware console messges of a USB interface chip to the host. To enable this feature, build option '-msgtrace' should be enabled in the firmware. And in the host, debug=0x100000 should be provided as a module parameter. Signed-off-by: Raveendran Somu Signed-off-by: Chi-hsien Lin --- .../net/wireless/broadcom/brcm80211/brcmfmac/bus.h | 1 + .../wireless/broadcom/brcm80211/brcmfmac/core.c | 8 +++ .../wireless/broadcom/brcm80211/brcmfmac/debug.c | 82 ++++++++++++++++++++++ .../wireless/broadcom/brcm80211/brcmfmac/debug.h | 24 +++++++ .../net/wireless/broadcom/brcm80211/brcmfmac/usb.c | 14 ++++ 5 files changed, 129 insertions(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h index 623c0168da79..c8063ca50611 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h @@ -271,6 +271,7 @@ void brcmf_bus_change_state(struct brcmf_bus *bus, enum brcmf_bus_state state); s32 brcmf_iovar_data_set(struct device *dev, char *name, void *data, u32 len); void brcmf_bus_add_txhdrlen(struct device *dev, uint len); +int brcmf_fwlog_attach(struct device *dev); #ifdef CONFIG_BRCMFMAC_SDIO void brcmf_sdio_exit(void); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c index 23627c953a5e..fab852461cf1 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c @@ -1117,6 +1117,14 @@ static int brcmf_inet6addr_changed(struct notifier_block *nb, } #endif +int brcmf_fwlog_attach(struct device *dev) +{ + struct brcmf_bus *bus_if = dev_get_drvdata(dev); + struct brcmf_pub *drvr = bus_if->drvr; + + return brcmf_debug_fwlog_init(drvr); +} + static int brcmf_revinfo_read(struct seq_file *s, void *data) { struct brcmf_bus *bus_if = dev_get_drvdata(s->private); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c index 120515fe8250..64c8ba0ef8af 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.c @@ -14,6 +14,82 @@ #include "fweh.h" #include "debug.h" +static int +brcmf_debug_msgtrace_seqchk(u32 *prev, u32 cur) +{ + if ((cur == 0 && *prev == 0xFFFFFFFF) || ((cur - *prev) == 1)) { + goto done; + } else if (cur == *prev) { + brcmf_dbg(FWCON, "duplicate trace\n"); + return -1; + } else if (cur > *prev) { + brcmf_dbg(FWCON, "lost %d packets\n", cur - *prev); + } else { + brcmf_dbg(FWCON, "seq out of order, host %d, dongle %d\n", + *prev, cur); + } +done: + *prev = cur; + return 0; +} + +static int +brcmf_debug_msg_parser(void *event_data) +{ + int err = 0; + struct msgtrace_hdr *hdr; + char *data, *s; + static u32 seqnum_prev; + + hdr = (struct msgtrace_hdr *)event_data; + data = (char *)event_data + MSGTRACE_HDRLEN; + + /* There are 2 bytes available at the end of data */ + data[ntohs(hdr->len)] = '\0'; + + if (ntohl(hdr->discarded_bytes) || ntohl(hdr->discarded_printf)) { + brcmf_dbg(FWCON, "Discarded_bytes %d discarded_printf %d\n", + ntohl(hdr->discarded_bytes), + ntohl(hdr->discarded_printf)); + } + + err = brcmf_debug_msgtrace_seqchk(&seqnum_prev, ntohl(hdr->seqnum)); + if (err) + return err; + + while (*data != '\0' && (s = strstr(data, "\n")) != NULL) { + *s = '\0'; + brcmf_dbg(FWCON, "CONSOLE: %s\n", data); + data = s + 1; + } + if (*data) + brcmf_dbg(FWCON, "CONSOLE: %s", data); + + return err; +} + +static int +brcmf_debug_trace_parser(struct brcmf_if *ifp, + const struct brcmf_event_msg *evtmsg, + void *event_data) +{ + int err = 0; + struct msgtrace_hdr *hdr; + + hdr = (struct msgtrace_hdr *)event_data; + if (hdr->version != MSGTRACE_VERSION) { + brcmf_dbg(FWCON, "trace version mismatch host %d dngl %d\n", + MSGTRACE_VERSION, hdr->version); + err = -EPROTO; + return err; + } + + if (hdr->trace_type == MSGTRACE_HDR_TYPE_MSG) + err = brcmf_debug_msg_parser(event_data); + + return err; +} + int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data, size_t len) { @@ -42,6 +118,12 @@ int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data, return 0; } +int brcmf_debug_fwlog_init(struct brcmf_pub *drvr) +{ + return brcmf_fweh_register(drvr, BRCMF_E_TRACE, + brcmf_debug_trace_parser); +} + struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr) { return drvr->wiphy->debugfsdir; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h index 9b221b509ade..d61508b62d2c 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h @@ -103,6 +103,10 @@ do { \ #endif /* defined(DEBUG) || defined(CONFIG_BRCM_TRACING) */ +#define MSGTRACE_VERSION 1 +#define MSGTRACE_HDR_TYPE_MSG 0 +#define MSGTRACE_HDR_TYPE_LOG 1 + #define brcmf_dbg_hex_dump(test, data, len, fmt, ...) \ do { \ trace_brcmf_hexdump((void *)data, len); \ @@ -120,6 +124,7 @@ int brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn, int (*read_fn)(struct seq_file *seq, void *data)); int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data, size_t len); +int brcmf_debug_fwlog_init(struct brcmf_pub *drvr); #else static inline struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr) { @@ -137,6 +142,25 @@ int brcmf_debug_create_memdump(struct brcmf_bus *bus, const void *data, { return 0; } + +static inline +int brcmf_debug_fwlog_init(struct brcmf_pub *drvr) +{ + return 0; +} #endif +/* Message trace header */ +struct msgtrace_hdr { + u8 version; + u8 trace_type; + u16 len; /* Len of the trace */ + u32 seqnum; /* Sequence number of message */ + /* Number of discarded bytes because of trace overflow */ + u32 discarded_bytes; + /* Number of discarded printf because of trace overflow */ + u32 discarded_printf; +}; + +#define MSGTRACE_HDRLEN sizeof(struct msgtrace_hdr) #endif /* BRCMFMAC_DEBUG_H */ diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c index 1108414c4c8f..6051657a9628 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c @@ -1218,6 +1218,12 @@ static void brcmf_usb_probe_phase2(struct device *dev, int ret, if (ret) goto error; + if (BRCMF_FWCON_ON()) { + ret = brcmf_fwlog_attach(devinfo->dev); + if (ret) + goto error; + } + /* Attach to the common driver interface */ ret = brcmf_attach(devinfo->dev); if (ret) @@ -1294,9 +1300,17 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) ret = brcmf_alloc(devinfo->dev, devinfo->settings); if (ret) goto fail; + + if (BRCMF_FWCON_ON()) { + ret = brcmf_fwlog_attach(devinfo->dev); + if (ret) + goto fail; + } + ret = brcmf_attach(devinfo->dev); if (ret) goto fail; + /* we are done */ complete(&devinfo->dev_init_done); return 0; -- 2.1.0