From patchwork Fri Jan 15 06:56:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tony Lindgren X-Patchwork-Id: 364332 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, 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 63075C433E6 for ; Fri, 15 Jan 2021 06:57:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3CBFC222BB for ; Fri, 15 Jan 2021 06:57:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728269AbhAOG5D (ORCPT ); Fri, 15 Jan 2021 01:57:03 -0500 Received: from muru.com ([72.249.23.125]:44884 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725880AbhAOG5D (ORCPT ); Fri, 15 Jan 2021 01:57:03 -0500 Received: from hillo.muru.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTP id 52E32805C; Fri, 15 Jan 2021 06:56:22 +0000 (UTC) From: Tony Lindgren To: Kalle Valo Cc: Eyal Reizer , Guy Mishol , Raz Bouganim , linux-wireless@vger.kernel.org, linux-omap@vger.kernel.org Subject: [PATCHv2 ] wlcore: Fix command execute failure 19 for wl12xx Date: Fri, 15 Jan 2021 08:56:13 +0200 Message-Id: <20210115065613.7731-1-tony@atomide.com> X-Mailer: git-send-email 2.30.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org We can currently get a "command execute failure 19" error on beacon loss if the signal is weak: wlcore: Beacon loss detected. roles:0xff wlcore: Connection loss work (role_id: 0). ... wlcore: ERROR command execute failure 19 ... WARNING: CPU: 0 PID: 1552 at drivers/net/wireless/ti/wlcore/main.c:803 ... (wl12xx_queue_recovery_work.part.0 [wlcore]) (wl12xx_cmd_role_start_sta [wlcore]) (wl1271_op_bss_info_changed [wlcore]) (ieee80211_prep_connection [mac80211]) Error 19 is defined as CMD_STATUS_WRONG_NESTING from the wlcore firmware, and seems to mean that the firmware no longer wants to see the quirk handling for WLCORE_QUIRK_START_STA_FAILS done. This quirk got added with commit 18eab430700d ("wlcore: workaround start_sta problem in wl12xx fw"), and it seems that this already got fixed in the firmware long time ago back in 2012 as wl18xx never had this quirk in place to start with. As we no longer even support firmware that early, to me it seems that it's safe to just drop WLCORE_QUIRK_START_STA_FAILS to fix the error. Looks like earlier firmware got disabled back in 2013 with commit 0e284c074ef9 ("wl12xx: increase minimum singlerole firmware version required"). If it turns out we still need WLCORE_QUIRK_START_STA_FAILS with any firmware that the driver works with, we can simply revert this patch and add extra checks for firmware version used. With this fix wlcore reconnects properly after a beacon loss. Cc: Raz Bouganim Signed-off-by: Tony Lindgren --- Changes since v1: Update to apply without fuzz --- drivers/net/wireless/ti/wl12xx/main.c | 3 --- drivers/net/wireless/ti/wlcore/main.c | 15 +-------------- drivers/net/wireless/ti/wlcore/wlcore.h | 3 --- 3 files changed, 1 insertion(+), 20 deletions(-) diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c index 3c9c623bb4283..9d7dbfe7fe0c3 100644 --- a/drivers/net/wireless/ti/wl12xx/main.c +++ b/drivers/net/wireless/ti/wl12xx/main.c @@ -635,7 +635,6 @@ static int wl12xx_identify_chip(struct wl1271 *wl) wl->quirks |= WLCORE_QUIRK_LEGACY_NVS | WLCORE_QUIRK_DUAL_PROBE_TMPL | WLCORE_QUIRK_TKIP_HEADER_SPACE | - WLCORE_QUIRK_START_STA_FAILS | WLCORE_QUIRK_AP_ZERO_SESSION_ID; wl->sr_fw_name = WL127X_FW_NAME_SINGLE; wl->mr_fw_name = WL127X_FW_NAME_MULTI; @@ -659,7 +658,6 @@ static int wl12xx_identify_chip(struct wl1271 *wl) wl->quirks |= WLCORE_QUIRK_LEGACY_NVS | WLCORE_QUIRK_DUAL_PROBE_TMPL | WLCORE_QUIRK_TKIP_HEADER_SPACE | - WLCORE_QUIRK_START_STA_FAILS | WLCORE_QUIRK_AP_ZERO_SESSION_ID; wl->plt_fw_name = WL127X_PLT_FW_NAME; wl->sr_fw_name = WL127X_FW_NAME_SINGLE; @@ -688,7 +686,6 @@ static int wl12xx_identify_chip(struct wl1271 *wl) wl->quirks |= WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN | WLCORE_QUIRK_DUAL_PROBE_TMPL | WLCORE_QUIRK_TKIP_HEADER_SPACE | - WLCORE_QUIRK_START_STA_FAILS | WLCORE_QUIRK_AP_ZERO_SESSION_ID; wlcore_set_min_fw_ver(wl, WL128X_CHIP_VER, diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c index fb0305d075dd3..8509b989940c2 100644 --- a/drivers/net/wireless/ti/wlcore/main.c +++ b/drivers/net/wireless/ti/wlcore/main.c @@ -2872,21 +2872,8 @@ static int wlcore_join(struct wl1271 *wl, struct wl12xx_vif *wlvif) if (is_ibss) ret = wl12xx_cmd_role_start_ibss(wl, wlvif); - else { - if (wl->quirks & WLCORE_QUIRK_START_STA_FAILS) { - /* - * TODO: this is an ugly workaround for wl12xx fw - * bug - we are not able to tx/rx after the first - * start_sta, so make dummy start+stop calls, - * and then call start_sta again. - * this should be fixed in the fw. - */ - wl12xx_cmd_role_start_sta(wl, wlvif); - wl12xx_cmd_role_stop_sta(wl, wlvif); - } - + else ret = wl12xx_cmd_role_start_sta(wl, wlvif); - } return ret; } diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h index b7821311ac75b..81c94d390623b 100644 --- a/drivers/net/wireless/ti/wlcore/wlcore.h +++ b/drivers/net/wireless/ti/wlcore/wlcore.h @@ -547,9 +547,6 @@ wlcore_set_min_fw_ver(struct wl1271 *wl, unsigned int chip, /* Each RX/TX transaction requires an end-of-transaction transfer */ #define WLCORE_QUIRK_END_OF_TRANSACTION BIT(0) -/* the first start_role(sta) sometimes doesn't work on wl12xx */ -#define WLCORE_QUIRK_START_STA_FAILS BIT(1) - /* wl127x and SPI don't support SDIO block size alignment */ #define WLCORE_QUIRK_TX_BLOCKSIZE_ALIGN BIT(2)