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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY, 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 470CBC43387 for ; Fri, 28 Dec 2018 10:28:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 16C9D20874 for ; Fri, 28 Dec 2018 10:28:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732035AbeL1K2F (ORCPT ); Fri, 28 Dec 2018 05:28:05 -0500 Received: from Mailgw01.mediatek.com ([1.203.163.78]:10795 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1730344AbeL1K2E (ORCPT ); Fri, 28 Dec 2018 05:28:04 -0500 X-UUID: c2e64387311a4d66bb304d5030e54b95-20181228 X-UUID: c2e64387311a4d66bb304d5030e54b95-20181228 Received: from mtkcas35.mediatek.inc [(172.27.4.250)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 1042852339; Fri, 28 Dec 2018 18:27:57 +0800 Received: from mtkcas09.mediatek.inc (172.21.101.178) by MTKMBS31DR.mediatek.inc (172.27.6.102) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 28 Dec 2018 18:27:55 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas09.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Fri, 28 Dec 2018 18:27:54 +0800 From: Chunfeng Yun To: Greg Kroah-Hartman CC: Felipe Balbi , Matthias Brugger , Chunfeng Yun , , , , , Subject: [PATCH] usb: devio: update max count of DPs per interval for ISOC Date: Fri, 28 Dec 2018 18:27:44 +0800 Message-ID: <1545992864-9530-1-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The host shall be able to accept and send up to 96 DPs for devices operating at Gen 2 speed. Signed-off-by: Chunfeng Yun --- drivers/usb/core/devio.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index a75bc0b8a50f..82c16210e34c 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1564,12 +1564,10 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb } for (totlen = u = 0; u < number_of_packets; u++) { /* - * arbitrary limit need for USB 3.0 - * bMaxBurst (0~15 allowed, 1~16 packets) - * bmAttributes (bit 1:0, mult 0~2, 1~3 packets) - * sizemax: 1024 * 16 * 3 = 49152 + * arbitrary limit need for USB 3.1 Gen2 + * sizemax: 96 DPs at SSP, 96 * 1024 = 98304 */ - if (isopkt[u].length > 49152) { + if (isopkt[u].length > 98304) { ret = -EINVAL; goto error; } -- 2.19.1