From patchwork Mon May 8 08:43:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ping-Ke Shih X-Patchwork-Id: 681815 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBF0CC7EE22 for ; Mon, 8 May 2023 08:44:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232525AbjEHIoK (ORCPT ); Mon, 8 May 2023 04:44:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33220 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233277AbjEHIoH (ORCPT ); Mon, 8 May 2023 04:44:07 -0400 Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CAEB76582 for ; Mon, 8 May 2023 01:44:00 -0700 (PDT) Authenticated-By: X-SpamFilter-By: ArmorX SpamTrap 5.77 with qID 3488hlNU3007945, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36506.realtek.com.tw[172.21.6.27]) by rtits2.realtek.com.tw (8.15.2/2.81/5.90) with ESMTPS id 3488hlNU3007945 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=OK); Mon, 8 May 2023 16:43:47 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36506.realtek.com.tw (172.21.6.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.17; Mon, 8 May 2023 16:43:53 +0800 Received: from [127.0.1.1] (172.21.69.188) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Mon, 8 May 2023 16:43:53 +0800 From: Ping-Ke Shih To: CC: , , Subject: [PATCH 2/3] wifi: rtw89: ser: L1 add pre-M0 and post-M0 states Date: Mon, 8 May 2023 16:43:34 +0800 Message-ID: <20230508084335.42953-3-pkshih@realtek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230508084335.42953-1-pkshih@realtek.com> References: <20230508084335.42953-1-pkshih@realtek.com> MIME-Version: 1.0 X-Originating-IP: [172.21.69.188] X-ClientProxiedBy: RTEXMBS02.realtek.com.tw (172.21.6.95) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Zong-Zhe Yang Newer FW re-design SER (syetem error recovery) L1 (level 1) flow. New L1 flow will expect two extra states before original L1 flow. * Before: fw --- M1 --> driver fw <-- M2 --- driver fw --- M3 --> driver fw <-- M4 --- driver fw --- M5 --> driver * After: fw --- pre-M0 --> driver fw <-- post-M0 --- driver fw --- M1 --> driver fw <-- M2 --- driver fw --- M3 --> driver fw <-- M4 --- driver fw --- M5 --> driver Then before M1, FW gets one more interval to deal with things that FW should have handled well. To consider backward/forward compatibility, FW and driver won't change flow from M1 to M5. (only except that halt trigger control will change a little bit.) So, there will be two differnt starting points of SER L1. * old FW: SER L1 starts from M1 * new FW: SER L1 starts from pre-M0 Then, driver adds the new SER L1 entry and also keep the original one instead of changing it. Signed-off-by: Zong-Zhe Yang Signed-off-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw89/core.h | 1 + drivers/net/wireless/realtek/rtw89/mac.c | 6 ++++ drivers/net/wireless/realtek/rtw89/mac.h | 2 ++ drivers/net/wireless/realtek/rtw89/ser.c | 43 ++++++++++++++++++++++- 4 files changed, 51 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h index f697902706acc..b71827751848a 100644 --- a/drivers/net/wireless/realtek/rtw89/core.h +++ b/drivers/net/wireless/realtek/rtw89/core.h @@ -3945,6 +3945,7 @@ enum rtw89_ser_rcvy_step { struct rtw89_ser { u8 state; u8 alarm_event; + bool prehandle_l1; struct work_struct ser_hdl_work; struct delayed_work ser_alarm_work; diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c index 64dc36470840c..e5996a94c0def 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -676,6 +676,7 @@ EXPORT_SYMBOL(rtw89_mac_get_err_status); int rtw89_mac_set_err_status(struct rtw89_dev *rtwdev, u32 err) { + struct rtw89_ser *ser = &rtwdev->ser; u32 halt; int ret = 0; @@ -692,6 +693,11 @@ int rtw89_mac_set_err_status(struct rtw89_dev *rtwdev, u32 err) } rtw89_write32(rtwdev, R_AX_HALT_H2C, err); + + if (ser->prehandle_l1 && + (err == MAC_AX_ERR_L1_DISABLE_EN || err == MAC_AX_ERR_L1_RCVY_EN)) + return 0; + rtw89_write32(rtwdev, R_AX_HALT_H2C_CTRL, B_AX_HALT_H2C_TRIGGER); return 0; diff --git a/drivers/net/wireless/realtek/rtw89/mac.h b/drivers/net/wireless/realtek/rtw89/mac.h index d3922d4fe288a..e340720bbb889 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.h +++ b/drivers/net/wireless/realtek/rtw89/mac.h @@ -642,6 +642,7 @@ enum mac_ax_err_info { MAC_AX_ERR_L0_PROMOTE_TO_L1 = 0x0010, /* L1 */ + MAC_AX_ERR_L1_PREERR_DMAC = 0x999, MAC_AX_ERR_L1_ERR_DMAC = 0x1000, MAC_AX_ERR_L1_RESET_DISABLE_DMAC_DONE = 0x1001, MAC_AX_ERR_L1_RESET_RECOVERY_DONE = 0x1002, @@ -780,6 +781,7 @@ enum mac_ax_err_info { MAC_AX_ERR_L1_RCVY_EN = 0x0002, MAC_AX_ERR_L1_RCVY_STOP_REQ = 0x0003, MAC_AX_ERR_L1_RCVY_START_REQ = 0x0004, + MAC_AX_ERR_L1_RESET_START_DMAC = 0x000A, MAC_AX_ERR_L0_CFG_NOTIFY = 0x0010, MAC_AX_ERR_L0_CFG_DIS_NOTIFY = 0x0011, MAC_AX_ERR_L0_CFG_HANDSHAKE = 0x0012, diff --git a/drivers/net/wireless/realtek/rtw89/ser.c b/drivers/net/wireless/realtek/rtw89/ser.c index 9e9f6947e7f14..9ba99f3764e7e 100644 --- a/drivers/net/wireless/realtek/rtw89/ser.c +++ b/drivers/net/wireless/realtek/rtw89/ser.c @@ -20,12 +20,14 @@ enum ser_evt { SER_EV_NONE, SER_EV_STATE_IN, SER_EV_STATE_OUT, + SER_EV_L1_RESET_PREPARE, /* pre-M0 */ SER_EV_L1_RESET, /* M1 */ SER_EV_DO_RECOVERY, /* M3 */ SER_EV_MAC_RESET_DONE, /* M5 */ SER_EV_L2_RESET, SER_EV_L2_RECFG_DONE, SER_EV_L2_RECFG_TIMEOUT, + SER_EV_M1_TIMEOUT, SER_EV_M3_TIMEOUT, SER_EV_FW_M5_TIMEOUT, SER_EV_L0_RESET, @@ -34,6 +36,7 @@ enum ser_evt { enum ser_state { SER_IDLE_ST, + SER_L1_RESET_PRE_ST, SER_RESET_TRX_ST, SER_DO_HCI_ST, SER_L2_RESET_ST, @@ -374,6 +377,13 @@ static int hal_stop_dma(struct rtw89_ser *ser) return ret; } +static void hal_send_post_m0_event(struct rtw89_ser *ser) +{ + struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); + + rtw89_mac_set_err_status(rtwdev, MAC_AX_ERR_L1_RESET_START_DMAC); +} + static void hal_send_m2_event(struct rtw89_ser *ser) { struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); @@ -398,6 +408,9 @@ static void ser_idle_st_hdl(struct rtw89_ser *ser, u8 evt) rtw89_hci_recovery_complete(rtwdev); clear_bit(RTW89_FLAG_CRASH_SIMULATING, rtwdev->flags); break; + case SER_EV_L1_RESET_PREPARE: + ser_state_goto(ser, SER_L1_RESET_PRE_ST); + break; case SER_EV_L1_RESET: ser_state_goto(ser, SER_RESET_TRX_ST); break; @@ -412,6 +425,28 @@ static void ser_idle_st_hdl(struct rtw89_ser *ser, u8 evt) } } +static void ser_l1_reset_pre_st_hdl(struct rtw89_ser *ser, u8 evt) +{ + switch (evt) { + case SER_EV_STATE_IN: + ser->prehandle_l1 = true; + hal_send_post_m0_event(ser); + ser_set_alarm(ser, 1000, SER_EV_M1_TIMEOUT); + break; + case SER_EV_L1_RESET: + ser_state_goto(ser, SER_RESET_TRX_ST); + break; + case SER_EV_M1_TIMEOUT: + ser_state_goto(ser, SER_L2_RESET_ST); + break; + case SER_EV_STATE_OUT: + ser_del_alarm(ser); + break; + default: + break; + } +} + static void ser_reset_trx_st_hdl(struct rtw89_ser *ser, u8 evt) { struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser); @@ -654,12 +689,14 @@ static const struct event_ent ser_ev_tbl[] = { {SER_EV_NONE, "SER_EV_NONE"}, {SER_EV_STATE_IN, "SER_EV_STATE_IN"}, {SER_EV_STATE_OUT, "SER_EV_STATE_OUT"}, - {SER_EV_L1_RESET, "SER_EV_L1_RESET"}, + {SER_EV_L1_RESET_PREPARE, "SER_EV_L1_RESET_PREPARE pre-m0"}, + {SER_EV_L1_RESET, "SER_EV_L1_RESET m1"}, {SER_EV_DO_RECOVERY, "SER_EV_DO_RECOVERY m3"}, {SER_EV_MAC_RESET_DONE, "SER_EV_MAC_RESET_DONE m5"}, {SER_EV_L2_RESET, "SER_EV_L2_RESET"}, {SER_EV_L2_RECFG_DONE, "SER_EV_L2_RECFG_DONE"}, {SER_EV_L2_RECFG_TIMEOUT, "SER_EV_L2_RECFG_TIMEOUT"}, + {SER_EV_M1_TIMEOUT, "SER_EV_M1_TIMEOUT"}, {SER_EV_M3_TIMEOUT, "SER_EV_M3_TIMEOUT"}, {SER_EV_FW_M5_TIMEOUT, "SER_EV_FW_M5_TIMEOUT"}, {SER_EV_L0_RESET, "SER_EV_L0_RESET"}, @@ -668,6 +705,7 @@ static const struct event_ent ser_ev_tbl[] = { static const struct state_ent ser_st_tbl[] = { {SER_IDLE_ST, "SER_IDLE_ST", ser_idle_st_hdl}, + {SER_L1_RESET_PRE_ST, "SER_L1_RESET_PRE_ST", ser_l1_reset_pre_st_hdl}, {SER_RESET_TRX_ST, "SER_RESET_TRX_ST", ser_reset_trx_st_hdl}, {SER_DO_HCI_ST, "SER_DO_HCI_ST", ser_do_hci_st_hdl}, {SER_L2_RESET_ST, "SER_L2_RESET_ST", ser_l2_reset_st_hdl} @@ -713,6 +751,9 @@ int rtw89_ser_notify(struct rtw89_dev *rtwdev, u32 err) rtw89_info(rtwdev, "SER catches error: 0x%x\n", err); switch (err) { + case MAC_AX_ERR_L1_PREERR_DMAC: /* pre-M0 */ + event = SER_EV_L1_RESET_PREPARE; + break; case MAC_AX_ERR_L1_ERR_DMAC: case MAC_AX_ERR_L0_PROMOTE_TO_L1: event = SER_EV_L1_RESET; /* M1 */