From patchwork Mon Mar 16 17:46:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Andryuk X-Patchwork-Id: 1255740 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=d2XyMgnj; dkim-atps=neutral Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 48h4CZ2lFWz9sPF for ; Tue, 17 Mar 2020 05:12:42 +1100 (AEDT) Received: from localhost ([::1]:45438 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jDuEC-0007K7-A7 for incoming@patchwork.ozlabs.org; Mon, 16 Mar 2020 14:12:40 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42899) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jDtpL-00038M-Bp for qemu-devel@nongnu.org; Mon, 16 Mar 2020 13:47:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jDtpJ-0002w7-VL for qemu-devel@nongnu.org; Mon, 16 Mar 2020 13:46:59 -0400 Received: from mail-qk1-x743.google.com ([2607:f8b0:4864:20::743]:36543) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1jDtpF-0002t5-Na for qemu-devel@nongnu.org; Mon, 16 Mar 2020 13:46:57 -0400 Received: by mail-qk1-x743.google.com with SMTP id u25so27753535qkk.3 for ; Mon, 16 Mar 2020 10:46:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ZWAwQTp/Gfu1n4sLpFLUYHmDggD9ePlAuETyYaPTHZA=; b=d2XyMgnjt8mOPqVAp4gxUl1Y362/lpkF1zYWUCQbziPYVVRT8LeHUAKo2Sffhp7nUO REmy0Tm+Fq3+etN5vTJmn4LXZ2kszMurhramw5MOeiXFaMLBE5jsPnpSD7PfuSsYS/6X AUf+0cWu+SFovSyvqCR0aDhV/5w8p2f1AN+HntkluScF2zfmvUIgn6PhHaj5/wY/yZBn yAvFXT5NHQLqqM/6Il4dieqsTWn/KYlr6U2DVej871pEks5K+8qBFaVFk4oeANEWy6i9 8Mn44DYdG4LYuQDqxdHm5cKXWOlxvg3TIdCJX0fmw5eldVKdntkeZ7iA0QCNXdOADBZz ZtZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ZWAwQTp/Gfu1n4sLpFLUYHmDggD9ePlAuETyYaPTHZA=; b=X+pvTMS5r24KQPkallE9Lqkx2GwbFB/tCAReSCq3FtwSQnSTcKsXjAC35NbABbXQiv 9Wo90SwLwXB6p3JaUNUS34EmhV25aWXJe9xt9tUqttd9w/vla8i4MrflGu6l4KBuc8Bu 9Tgjj4FAq1HPp2V0ntAqg+RKA4MNnnIgvhB5fwvjTBVMC1ejudCavaRFNTt+kg54Q48O 0sAjDe4Lw90n1DrUblPZgeIxvkE5c9iJMVH/oPE+FNhlgsw8GKKpyddXXZ5BpbsJRa9k Pk1gyG2ykZo73IgFCWPMqMXittHz5n2e76ksttlLVuhOCBnDBGfr1+RBCPHP+LuNvJkG TJdg== X-Gm-Message-State: ANhLgQ2YbXu9ZJztNCYdrOddCoSYs/vgdYdP2ZktqGMbddMF3RNgJA8Q yAFtZsoivHz/vR3De7AyLZQ= X-Google-Smtp-Source: ADFU+vtTrTxd7Z8X94zj01lsbOzd2fTLwwJjzven7szZu3X2JkayDYD9BQYxAKoZ8CJG0ix5lkXVUA== X-Received: by 2002:a37:8ac3:: with SMTP id m186mr852334qkd.371.1584380812842; Mon, 16 Mar 2020 10:46:52 -0700 (PDT) Received: from pm2-ws13.praxislan02.com ([2001:470:8:67e:7408:9006:8741:9ceb]) by smtp.gmail.com with ESMTPSA id g7sm218422qki.64.2020.03.16.10.46.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2020 10:46:52 -0700 (PDT) From: Jason Andryuk To: Gerd Hoffmann , Samuel Thibault Subject: [PATCH v2 3/4] usb-serial: Increase receive buffer to 496 Date: Mon, 16 Mar 2020 13:46:09 -0400 Message-Id: <20200316174610.115820-4-jandryuk@gmail.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200316174610.115820-1-jandryuk@gmail.com> References: <20200316174610.115820-1-jandryuk@gmail.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::743 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-devel@nongnu.org, Jason Andryuk Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" A FTDI USB adapter on an xHCI controller can send 512 byte USB packets. These are 8 * ( 2 bytes header + 62 bytes data). A 384 byte receive buffer is insufficient to fill a 512 byte packet, so bump the receive size to 496 ( 512 - 2 * 8 ). Signed-off-by: Jason Andryuk Reviewed-by: Samuel Thibault --- hw/usb/dev-serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/usb/dev-serial.c b/hw/usb/dev-serial.c index ec091b6a36..77b964588b 100644 --- a/hw/usb/dev-serial.c +++ b/hw/usb/dev-serial.c @@ -29,7 +29,7 @@ do { printf("usb-serial: " fmt , ## __VA_ARGS__); } while (0) #define DPRINTF(fmt, ...) do {} while(0) #endif -#define RECV_BUF 384 +#define RECV_BUF (512 - (2 * 8)) /* Commands */ #define FTDI_RESET 0