From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f181.google.com (mail-pl1-f181.google.com [209.85.214.181]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B179A390205 for ; Wed, 4 Mar 2026 15:35:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.181 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772638543; cv=none; b=PWtcgHmvjaXLIIY4+70usqwCdmxaX+rktS7+DYOX3HyZVwomQWbp49EA+oXUAYLX4CZOU1Zk0b4ujjuVWhafgYfBNIra52uss+1YLxjHvQkczVLjA57XrPhJhUHxuMBylSBy/QPMq23DjSLdhvktxuemfuviA09FD42VaeoK8To= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772638543; c=relaxed/simple; bh=tIMu771eti/7wiXo4Au6giCwBRYWMVsndvF+yY6uasc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=k3s57TtwsXffzlKFv0r3A/DH45gB1y6Epp8Gd/cdsLyDQbs9iXtjOy3waygTJyRs8AgDYFLswnOfbKtVxPTY+2cFK/UlK+mEzOorEzpZKTA7VUDuHckRyxms6BdeC7kPLwZDgBTR2Wx7is5EP1JtIXNdO8BdT8F0v41ABingFxc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Gfix+b74; arc=none smtp.client-ip=209.85.214.181 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Gfix+b74" Received: by mail-pl1-f181.google.com with SMTP id d9443c01a7336-2ad9a9be502so46828455ad.0 for ; Wed, 04 Mar 2026 07:35:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1772638541; x=1773243341; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=nsY5todpbk3rMcwCwi+T3uOMFloUvB58xV7DNnWbYXQ=; b=Gfix+b746z5kupUDEAkxsIFumSFtKCo9Mb13RzzJa4RtMA+82Fdzp0vs1ifEJbhahO K3uvGgI5HsecZPg6L03FZK6UG8pJphyl7Ia2SwyiNImrnZYQtG7FB1KqwCZ+0tfVgcKR bp+HNLevynra9G/xrxGOsoclXSrl/hwl9j+BSku85TBFa9arEWqbjpIRgfklHGRNpYg1 8qewp6FluMbtctaU62t7HvtjbJUu/o9D852wtL4aVxt96lXspZjqL00Hh4nYH4qi5x7p jrtE7Olrd1DotrZ1QzJobqb1VRmhmrdY0DfxBOLAg9MO52nyI+c8CqiNiLoRfq/8hZqA mcqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772638541; x=1773243341; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=nsY5todpbk3rMcwCwi+T3uOMFloUvB58xV7DNnWbYXQ=; b=iw0eT593BnIoIdaZwyT2oLgKejpDn6FSsSy8XJjm5ps86nKl6LkAIFaFBwHyGM02db Y+fzaVjHsakdcXvwR9d7rWCnTH/j0V05+Fmk++gOa7bOUagcc1+nB6lPljEAaELNDkGu 7Q6Y8+MT5WjcPW1uDLNIA7P+oYfI56Nucx2Exi4nbeVpMknfW0GNl1LukHlpDn3Hl1RG EOxOyCZVia8rl/MgW8fZQrmW0kmMYq8qmZ//IkXkhAVWeu92t9PGSHKUvmzr2JUPS6Do TOcev6r2pY7DdTGE2j53TC5Gtwk1c3w6bHve1Xvf8vJLm6hNIKXdtI/6ZSX9Ywdj8bsb y6hA== X-Gm-Message-State: AOJu0YwRn/tixNj40GZv87s2iUoMxUtdh4q3GYTS9KTDmG2aj+nR6V82 /NXupZPjlRlXetLqEB5OwQ8fRrdg5kpktJ9nWxE3X+w9YIfenYPWx3EB X-Gm-Gg: ATEYQzwJ8JHbpKikkDrq++Ll1finf532Fi9xKPXKw4RAOb+itzKvR50TIZETt0EJLP4 HkiA0ahxb5HgoXzapVmjZjxgo0l6faBXk4ZAxC/pwBTcDL6zeDCuHmQPv2CodChE3DLvODt/G2X CTmBALfvQaHQoMc134Af8b3O9DN+Ko0TasIB3KLAdPRxmQUE/CBXACHhZs6thGnLfuTi6AdLl/U Fkop+FWQFhXA16hNgqsTvs4ZlCworJKJmDwPczL1NJVqIfC5SRLMsgh64SnsrWQ2eLCt50zM2fa m+27pfHwZTdpGIKZi9VgJIpB2J4kOPRyjMUp2UEvRViMUt5OnNOMaxBG8EAep7CZ5UXL7+Zsyaq 89TZ9fAJxhA0Ri8A1ppSiaFvv7CncHmY3Jch0uQtBH/j2gvlqXkRRPRpwmLTywsOuhIO6JKzfDS 1xM/TifaxXCqul0aHjOxYQ3ayvxsTB5tv9vz0LCBE7vve4VD0Gg5pDCUark53JN7Ueah3hKaD6e p2gtA== X-Received: by 2002:a17:902:f541:b0:2ae:3a1e:3490 with SMTP id d9443c01a7336-2ae6ab10e95mr27956305ad.38.1772638540911; Wed, 04 Mar 2026 07:35:40 -0800 (PST) Received: from ?IPV6:2001:ee0:4f0f:b1d0:50db:9305:a4f4:d29d? ([2001:ee0:4f0f:b1d0:50db:9305:a4f4:d29d]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2adfb6f0ff9sm214379215ad.84.2026.03.04.07.35.35 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 04 Mar 2026 07:35:40 -0800 (PST) Message-ID: Date: Wed, 4 Mar 2026 22:35:34 +0700 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v2] virtio-net: xsk: Support wakeup on RX side To: Jason Xing Cc: netdev@vger.kernel.org, "Michael S. Tsirkin" , Jason Wang , Xuan Zhuo , =?UTF-8?Q?Eugenio_P=C3=A9rez?= , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , virtualization@lists.linux.dev, linux-kernel@vger.kernel.org References: <20260302164158.4394-1-minhquangbui99@gmail.com> Content-Language: en-US From: Bui Quang Minh In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 3/4/26 14:41, Jason Xing wrote: > On Tue, Mar 3, 2026 at 1:03 AM Bui Quang Minh wrote: >> When XDP_USE_NEED_WAKEUP is used and the fill ring is empty so no buffer >> is allocated on RX side, allow RX NAPI to be descheduled. This avoids >> wasting CPU cycles on polling. Users will be notified and they need to >> make a wakeup call after refilling the ring. >> >> Signed-off-by: Bui Quang Minh > Thanks for handling that problem. Please carry my tag in the next version: > > Reviewed-by: Jason Xing > > You seem to have forgotten to add Xuan Zhuo's tag... This version contains a bug fix which is a non-trivial change so I think it might not be the same as the version that he approved of. Thanks, Quang Minh.