From patchwork Tue Apr 4 07:25:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13199201 X-Patchwork-Delegate: kvalo@adurom.com 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 0FF6CC761A6 for ; Tue, 4 Apr 2023 07:25:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233536AbjDDHZd (ORCPT ); Tue, 4 Apr 2023 03:25:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233927AbjDDHZV (ORCPT ); Tue, 4 Apr 2023 03:25:21 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 741B71701 for ; Tue, 4 Apr 2023 00:25:18 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pjb2U-00073r-P0; Tue, 04 Apr 2023 09:25:10 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pjb2U-008rcj-4i; Tue, 04 Apr 2023 09:25:10 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pjb2T-002UPb-GG; Tue, 04 Apr 2023 09:25:09 +0200 From: Sascha Hauer To: linux-wireless Cc: Hans Ulli Kroll , Larry Finger , Pkshih , Tim K , "Alex G ." , Nick Morrow , Viktor Petrenko , Andreas Henriksson , ValdikSS , kernel@pengutronix.de, Sascha Hauer , stable@vger.kernel.org Subject: [PATCH v2 1/2] wifi: rtw88: usb: fix priority queue to endpoint mapping Date: Tue, 4 Apr 2023 09:25:07 +0200 Message-Id: <20230404072508.578056-2-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230404072508.578056-1-s.hauer@pengutronix.de> References: <20230404072508.578056-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-wireless@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org The RTW88 chipsets have four different priority queues in hardware. For the USB type chipsets the packets destined for a specific priority queue must be sent through the endpoint corresponding to the queue. This was not fully understood when porting from the RTW88 USB out of tree driver and thus violated. This patch implements the qsel to endpoint mapping as in get_usb_bulkout_id_88xx() in the downstream driver. Without this the driver often issues "timed out to flush queue 3" warnings and often TX stalls completely. Signed-off-by: Sascha Hauer Tested-by: ValdikSS Tested-by: Alexandru gagniuc Tested-by: Larry Finger Cc: stable@vger.kernel.org Reviewed-by: Ping-Ke Shih --- drivers/net/wireless/realtek/rtw88/usb.c | 70 ++++++++++++++++-------- 1 file changed, 47 insertions(+), 23 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/usb.c b/drivers/net/wireless/realtek/rtw88/usb.c index 2a8336b1847a5..a10d6fef4ffaf 100644 --- a/drivers/net/wireless/realtek/rtw88/usb.c +++ b/drivers/net/wireless/realtek/rtw88/usb.c @@ -118,6 +118,22 @@ static void rtw_usb_write32(struct rtw_dev *rtwdev, u32 addr, u32 val) rtw_usb_write(rtwdev, addr, val, 4); } +static int dma_mapping_to_ep(enum rtw_dma_mapping dma_mapping) +{ + switch (dma_mapping) { + case RTW_DMA_MAPPING_HIGH: + return 0; + case RTW_DMA_MAPPING_NORMAL: + return 1; + case RTW_DMA_MAPPING_LOW: + return 2; + case RTW_DMA_MAPPING_EXTRA: + return 3; + default: + return -EINVAL; + } +} + static int rtw_usb_parse(struct rtw_dev *rtwdev, struct usb_interface *interface) { @@ -129,6 +145,8 @@ static int rtw_usb_parse(struct rtw_dev *rtwdev, int num_out_pipes = 0; int i; u8 num; + const struct rtw_chip_info *chip = rtwdev->chip; + const struct rtw_rqpn *rqpn; for (i = 0; i < interface_desc->bNumEndpoints; i++) { endpoint = &host_interface->endpoint[i].desc; @@ -183,31 +201,34 @@ static int rtw_usb_parse(struct rtw_dev *rtwdev, rtwdev->hci.bulkout_num = num_out_pipes; - switch (num_out_pipes) { - case 4: - case 3: - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID0] = 2; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID1] = 2; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID2] = 2; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID3] = 2; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID4] = 1; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID5] = 1; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID6] = 0; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID7] = 0; - break; - case 2: - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID0] = 1; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID1] = 1; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID2] = 1; - rtwusb->qsel_to_ep[TX_DESC_QSEL_TID3] = 1; - break; - case 1: - break; - default: - rtw_err(rtwdev, "failed to get out_pipes(%d)\n", num_out_pipes); + if (num_out_pipes < 1 || num_out_pipes > 4) { + rtw_err(rtwdev, "invalid number of endpoints %d\n", num_out_pipes); return -EINVAL; } + rqpn = &chip->rqpn_table[num_out_pipes]; + + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID0] = dma_mapping_to_ep(rqpn->dma_map_be); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID1] = dma_mapping_to_ep(rqpn->dma_map_bk); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID2] = dma_mapping_to_ep(rqpn->dma_map_bk); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID3] = dma_mapping_to_ep(rqpn->dma_map_be); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID4] = dma_mapping_to_ep(rqpn->dma_map_vi); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID5] = dma_mapping_to_ep(rqpn->dma_map_vi); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID6] = dma_mapping_to_ep(rqpn->dma_map_vo); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID7] = dma_mapping_to_ep(rqpn->dma_map_vo); + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID8] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID9] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID10] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID11] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID12] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID13] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID14] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_TID15] = -EINVAL; + rtwusb->qsel_to_ep[TX_DESC_QSEL_BEACON] = dma_mapping_to_ep(rqpn->dma_map_hi); + rtwusb->qsel_to_ep[TX_DESC_QSEL_HIGH] = dma_mapping_to_ep(rqpn->dma_map_hi); + rtwusb->qsel_to_ep[TX_DESC_QSEL_MGMT] = dma_mapping_to_ep(rqpn->dma_map_mg); + rtwusb->qsel_to_ep[TX_DESC_QSEL_H2C] = dma_mapping_to_ep(rqpn->dma_map_hi); + return 0; } @@ -250,7 +271,7 @@ static void rtw_usb_write_port_tx_complete(struct urb *urb) static int qsel_to_ep(struct rtw_usb *rtwusb, unsigned int qsel) { if (qsel >= ARRAY_SIZE(rtwusb->qsel_to_ep)) - return 0; + return -EINVAL; return rtwusb->qsel_to_ep[qsel]; } @@ -265,6 +286,9 @@ static int rtw_usb_write_port(struct rtw_dev *rtwdev, u8 qsel, struct sk_buff *s int ret; int ep = qsel_to_ep(rtwusb, qsel); + if (ep < 0) + return ep; + pipe = usb_sndbulkpipe(usbd, rtwusb->out_ep[ep]); urb = usb_alloc_urb(0, GFP_ATOMIC); if (!urb) From patchwork Tue Apr 4 07:25:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13199200 X-Patchwork-Delegate: kvalo@adurom.com 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 94DB0C7618D for ; Tue, 4 Apr 2023 07:25:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233385AbjDDHZc (ORCPT ); Tue, 4 Apr 2023 03:25:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55944 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233926AbjDDHZU (ORCPT ); Tue, 4 Apr 2023 03:25:20 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08CEF170C for ; Tue, 4 Apr 2023 00:25:19 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1pjb2V-000749-15; Tue, 04 Apr 2023 09:25:11 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1pjb2U-008rco-D6; Tue, 04 Apr 2023 09:25:10 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1pjb2T-002UPq-HU; Tue, 04 Apr 2023 09:25:09 +0200 From: Sascha Hauer To: linux-wireless Cc: Hans Ulli Kroll , Larry Finger , Pkshih , Tim K , "Alex G ." , Nick Morrow , Viktor Petrenko , Andreas Henriksson , ValdikSS , kernel@pengutronix.de, Sascha Hauer , stable@vger.kernel.org Subject: [PATCH v2 2/2] wifi: rtw88: rtw8821c: Fix rfe_option field width Date: Tue, 4 Apr 2023 09:25:08 +0200 Message-Id: <20230404072508.578056-3-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230404072508.578056-1-s.hauer@pengutronix.de> References: <20230404072508.578056-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-wireless@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org On my RTW8821CU chipset rfe_option reads as 0x22. Looking at the downstream driver suggests that the field width of rfe_option is 5 bit, so rfe_option should be masked with 0x1f. Without this the rfe_option comparisons with 2 further down the driver evaluate as false when they should really evaluate as true. The effect is that 2G channels do not work. rfe_option is also used as an array index into rtw8821c_rfe_defs[]. rtw8821c_rfe_defs[34] (0x22) was added as part of adding USB support, likely because rfe_option reads as 0x22. As this now becomes 0x2, rtw8821c_rfe_defs[34] is no longer used and can be removed. Signed-off-by: Sascha Hauer Tested-by: ValdikSS Tested-by: Alexandru gagniuc Tested-by: Larry Finger Cc: stable@vger.kernel.org --- drivers/net/wireless/realtek/rtw88/rtw8821c.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/realtek/rtw88/rtw8821c.c b/drivers/net/wireless/realtek/rtw88/rtw8821c.c index 17f800f6efbd0..67efa58dd78ee 100644 --- a/drivers/net/wireless/realtek/rtw88/rtw8821c.c +++ b/drivers/net/wireless/realtek/rtw88/rtw8821c.c @@ -47,7 +47,7 @@ static int rtw8821c_read_efuse(struct rtw_dev *rtwdev, u8 *log_map) map = (struct rtw8821c_efuse *)log_map; - efuse->rfe_option = map->rfe_option; + efuse->rfe_option = map->rfe_option & 0x1f; efuse->rf_board_option = map->rf_board_option; efuse->crystal_cap = map->xtal_k; efuse->pa_type_2g = map->pa_type; @@ -1537,7 +1537,6 @@ static const struct rtw_rfe_def rtw8821c_rfe_defs[] = { [2] = RTW_DEF_RFE_EXT(8821c, 0, 0, 2), [4] = RTW_DEF_RFE_EXT(8821c, 0, 0, 2), [6] = RTW_DEF_RFE(8821c, 0, 0), - [34] = RTW_DEF_RFE(8821c, 0, 0), }; static struct rtw_hw_reg rtw8821c_dig[] = {