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=-6.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 D2066C43381 for ; Mon, 1 Apr 2019 18:07:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A0EE320880 for ; Mon, 1 Apr 2019 18:07:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554142032; bh=2vSYQeiR3+Q2z6Abom2boUDD5oI+wLPNDB1Vcwy0Iw0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=yO0PQNp0V08svHINFLFyxAuHupv6bNyBlFY3jQUB8Q40Xat/0IIh/MQYXci0Y6f2A QUrI1XTPds5/8w1I3MhVpT4p4VMjv5uKp9q0vRA3UWUcbF6IZXoNr8fa4WwCOwhDMo LzK0C2GEhgCTdSpzptRw49Gh09aTjSXKHPxuwi4M= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730277AbfDARL4 (ORCPT ); Mon, 1 Apr 2019 13:11:56 -0400 Received: from mail.kernel.org ([198.145.29.99]:32848 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729665AbfDARLz (ORCPT ); Mon, 1 Apr 2019 13:11:55 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6CECE21924; Mon, 1 Apr 2019 17:11:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554138713; bh=2vSYQeiR3+Q2z6Abom2boUDD5oI+wLPNDB1Vcwy0Iw0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0vdsXgZsYQ5IhaopRDz1QDMwEe9RV8DauzLJVWDWejQbb4Q/sdcdmEWBN0HviEQqR OeKNTpH7clqiEM50ibEOfmgYuweBywWGBEaWSA6T4xZMkoubgDcZWnR8PIsEpcvAO+ 3a9QeJTOjKxy5CkAahfQSGs8fqk4aqs0YMny2v5M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Lorenzo Bianconi , Stanislaw Gruszka , Felix Fietkau Subject: [PATCH 5.0 146/146] mt76x02u: use usb_bulk_msg to upload firmware Date: Mon, 1 Apr 2019 19:02:38 +0200 Message-Id: <20190401170100.331341674@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190401170048.449559024@linuxfoundation.org> References: <20190401170048.449559024@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 5.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stanislaw Gruszka commit 5de4db8fcb6d6fc7d9064c22841211790c0ab81b upstream. We don't need to send firmware data asynchronously, much simpler is just use synchronous usb_bulk_msg(). [ stable note: this patch was originally developed as cleanup, but it remove incorrect usage of page_frag_alloc(): alloc more than PAGE_SIZE and create not ARCH_DMA_MINALIGN dma buffers needed at least for performance reason. Was tested on 5.0 and 4.20, see https://bugzilla.kernel.org/show_bug.cgi?id=202673 and https://bugzilla.kernel.org/show_bug.cgi?id=202241 ] Tested-by: Lorenzo Bianconi Signed-off-by: Stanislaw Gruszka Signed-off-by: Felix Fietkau Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/mediatek/mt76/mt76.h | 13 ++++ drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c | 52 +++++-------------- drivers/net/wireless/mediatek/mt76/usb.c | 1 3 files changed, 29 insertions(+), 37 deletions(-) --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -713,6 +713,19 @@ static inline bool mt76u_check_sg(struct udev->speed == USB_SPEED_WIRELESS)); } +static inline int +mt76u_bulk_msg(struct mt76_dev *dev, void *data, int len, int timeout) +{ + struct usb_interface *intf = to_usb_interface(dev->dev); + struct usb_device *udev = interface_to_usbdev(intf); + struct mt76_usb *usb = &dev->usb; + unsigned int pipe; + int sent; + + pipe = usb_sndbulkpipe(udev, usb->out_ep[MT_EP_OUT_INBAND_CMD]); + return usb_bulk_msg(udev, pipe, data, len, &sent, timeout); +} + int mt76u_vendor_request(struct mt76_dev *dev, u8 req, u8 req_type, u16 val, u16 offset, void *buf, size_t len); --- a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_mcu.c @@ -121,18 +121,14 @@ static int __mt76x02u_mcu_send_msg(struct mt76_dev *dev, struct sk_buff *skb, int cmd, bool wait_resp) { - struct usb_interface *intf = to_usb_interface(dev->dev); - struct usb_device *udev = interface_to_usbdev(intf); struct mt76_usb *usb = &dev->usb; - unsigned int pipe; - int ret, sent; + int ret; u8 seq = 0; u32 info; if (test_bit(MT76_REMOVED, &dev->state)) return 0; - pipe = usb_sndbulkpipe(udev, usb->out_ep[MT_EP_OUT_INBAND_CMD]); if (wait_resp) { seq = ++usb->mcu.msg_seq & 0xf; if (!seq) @@ -146,7 +142,7 @@ __mt76x02u_mcu_send_msg(struct mt76_dev if (ret) return ret; - ret = usb_bulk_msg(udev, pipe, skb->data, skb->len, &sent, 500); + ret = mt76u_bulk_msg(dev, skb->data, skb->len, 500); if (ret) return ret; @@ -268,14 +264,12 @@ void mt76x02u_mcu_fw_reset(struct mt76x0 EXPORT_SYMBOL_GPL(mt76x02u_mcu_fw_reset); static int -__mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, struct mt76u_buf *buf, +__mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, u8 *data, const void *fw_data, int len, u32 dst_addr) { - u8 *data = sg_virt(&buf->urb->sg[0]); - DECLARE_COMPLETION_ONSTACK(cmpl); __le32 info; u32 val; - int err; + int err, data_len; info = cpu_to_le32(FIELD_PREP(MT_MCU_MSG_PORT, CPU_TX_PORT) | FIELD_PREP(MT_MCU_MSG_LEN, len) | @@ -291,25 +285,12 @@ __mt76x02u_mcu_fw_send_data(struct mt76x mt76u_single_wr(&dev->mt76, MT_VEND_WRITE_FCE, MT_FCE_DMA_LEN, len << 16); - buf->len = MT_CMD_HDR_LEN + len + sizeof(info); - err = mt76u_submit_buf(&dev->mt76, USB_DIR_OUT, - MT_EP_OUT_INBAND_CMD, - buf, GFP_KERNEL, - mt76u_mcu_complete_urb, &cmpl); - if (err < 0) - return err; - - if (!wait_for_completion_timeout(&cmpl, - msecs_to_jiffies(1000))) { - dev_err(dev->mt76.dev, "firmware upload timed out\n"); - usb_kill_urb(buf->urb); - return -ETIMEDOUT; - } + data_len = MT_CMD_HDR_LEN + len + sizeof(info); - if (mt76u_urb_error(buf->urb)) { - dev_err(dev->mt76.dev, "firmware upload failed: %d\n", - buf->urb->status); - return buf->urb->status; + err = mt76u_bulk_msg(&dev->mt76, data, data_len, 1000); + if (err) { + dev_err(dev->mt76.dev, "firmware upload failed: %d\n", err); + return err; } val = mt76_rr(dev, MT_TX_CPU_FROM_FCE_CPU_DESC_IDX); @@ -322,17 +303,16 @@ __mt76x02u_mcu_fw_send_data(struct mt76x int mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, const void *data, int data_len, u32 max_payload, u32 offset) { - int err, len, pos = 0, max_len = max_payload - 8; - struct mt76u_buf buf; + int len, err = 0, pos = 0, max_len = max_payload - 8; + u8 *buf; - err = mt76u_buf_alloc(&dev->mt76, &buf, 1, max_payload, max_payload, - GFP_KERNEL); - if (err < 0) - return err; + buf = kmalloc(max_payload, GFP_KERNEL); + if (!buf) + return -ENOMEM; while (data_len > 0) { len = min_t(int, data_len, max_len); - err = __mt76x02u_mcu_fw_send_data(dev, &buf, data + pos, + err = __mt76x02u_mcu_fw_send_data(dev, buf, data + pos, len, offset + pos); if (err < 0) break; @@ -341,7 +321,7 @@ int mt76x02u_mcu_fw_send_data(struct mt7 pos += len; usleep_range(5000, 10000); } - mt76u_buf_free(&buf); + kfree(buf); return err; } --- a/drivers/net/wireless/mediatek/mt76/usb.c +++ b/drivers/net/wireless/mediatek/mt76/usb.c @@ -326,7 +326,6 @@ int mt76u_buf_alloc(struct mt76_dev *dev return mt76u_fill_rx_sg(dev, buf, nsgs, len, sglen); } -EXPORT_SYMBOL_GPL(mt76u_buf_alloc); void mt76u_buf_free(struct mt76u_buf *buf) {