From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f44.google.com (mail-ed1-f44.google.com [209.85.208.44]) (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 EE4E48825 for ; Wed, 23 Oct 2024 02:37:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729651065; cv=none; b=KNlptkk+gQ2wp7H+ub6nOpDdLhx0F8BEtjr54UMlm4wbdHyStqCMeJOT/4KTHYw8PmqH4N/aIy71egdn3lqzuO9Wexrw2h8bYF5hchQtJsQT4WbUALBkjKdonVgdzKIzvXhocumgbxws7x9Op+0iRu46xtywykXV74b2mBWz05c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729651065; c=relaxed/simple; bh=eEZwh0UmEmz7xPBLM1FkrNKp10hmTKaJFJ+oPBjRxfk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=clGDXzyDFEeAs5oxM6kWbXIvfMvdv3o5RYhH013c9vKGQIAH/KSFaFnHHwtzPWb4GxXzeEeZBq0H+TZFJgU3BUG0PI9RL5C4dHcj84IhVBU8eyABdvSuLElT+lzxu4EYH7LXZ9mZe1zipPPFRWjaHINrK+5WIq1oKuT3akm5n3o= 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=C5fgmekM; arc=none smtp.client-ip=209.85.208.44 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="C5fgmekM" Received: by mail-ed1-f44.google.com with SMTP id 4fb4d7f45d1cf-5cb72918bddso3143060a12.3 for ; Tue, 22 Oct 2024 19:37:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1729651062; x=1730255862; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=H3ZyGAgy5DqURxudZ9Kk/N7YfHc0c5+nakT1BGCUqQ0=; b=C5fgmekMg6D8axBzGfqYREGwZrZJwI5dxuZFbCTrENUpKTOkMzfCxVc2DS+F5M4crb MUFO5q8LFWwynZWQMjBCfPBk9wFcpD080utZZ4NcfXsij2pckJNlfVL28CgrtPEieeab /LfnydR0cB7jONiihj4Od/jOfBoyRIk1lgW/zV36CpCRYiglRrS7RksbSCdCLCsUVmNR 3WyLiG39trWlgPvB6P7vStP9a8kVbcjbn2BA0E5bhLwJ4Zig1GLate/EOFeKKtjuC1jl naZ3bLCUZHKDgvxBqtCbT0nouPtPyqG5AxOdKMluOAxuK5xKLzHUaI3Q34TbCvt+c5ad mBKg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729651062; x=1730255862; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=H3ZyGAgy5DqURxudZ9Kk/N7YfHc0c5+nakT1BGCUqQ0=; b=MO4gacr7hR9TOwv1W1o1Rmn/Wplhk6jHvW/L0Kl/DUdRE0ilMrkcwXdXkMl7dSZQvQ fFzmFtAQO3055BEf+Aj19/VyEszPMs7IV20FESYoBi8bMtUWPkm6M+npr0UAv5V1GbyP K6+Pb0iRcaC5D7sjMyGK1+J84Y3dw+HZhb2GWaoPlNaVOm22Q7w79aEM6BE3rYuvBRX+ rEQ1Ei+VHqnDAQkuSKCmeLBfVtayeevMoxUD1nJJpj+gOTLlBQjJwNN76dUUkfBdBZg7 geba3W44Byuh+/wExgTxrANLZC7uj1VKN4AWMJDe2j3A5RYDZmXvdwv2K9o+mreCwKow Vq3A== X-Gm-Message-State: AOJu0YxiErAJdsfAqyBduI1onE3mEBlwYwG5Z+xH2+Je8fmilCUB5ZT0 6lAUj0O74e2WpFnOvt/q+KP2cOKy6GCnDew8z4RTOI9WZ9h29ldFVid6RA== X-Google-Smtp-Source: AGHT+IHbM5z8l+e8gSinFehYy/RclUytA8Vk8c09iVpNAXml+XOg3zGFwC2NtjDcTVLGmFSem75tlg== X-Received: by 2002:a17:906:f5a2:b0:a9a:10c9:f4b8 with SMTP id a640c23a62f3a-a9abf9b59edmr95747766b.61.1729651061799; Tue, 22 Oct 2024 19:37:41 -0700 (PDT) Received: from 127.0.0.1localhost ([148.252.141.112]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a9a91371046sm410418766b.139.2024.10.22.19.37.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 22 Oct 2024 19:37:41 -0700 (PDT) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: Jens Axboe , asml.silence@gmail.com Subject: [PATCH 0/4] implement vectored registered buffers for sendzc Date: Wed, 23 Oct 2024 03:38:17 +0100 Message-ID: X-Mailer: git-send-email 2.46.0 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Allow registered buffers to be used with zerocopy sendmsg, where the passed iovec becomes a scatter list into the registered buffer specified by sqe->buf_index. See patches 3 and 4 for more details. To get performance out of it, it'll need a bit more work on top for optimising allocations and cleaning up send setups. We can also implement it for non zerocopy variants and reads/writes in the future. Tested by enabling it in test/send-zerocopy.c, which checks payloads, and exercises lots of corner cases, especially around send sizes, offsets and non aligned registered buffers. Pavel Begunkov (4): io_uring/net: introduce io_kmsg_set_iovec io_uring/net: allow mixed bvec/iovec caching io_uring: vectored registered buffer import io_uring/net: sendzc with vectored fixed buffers io_uring/net.c | 132 +++++++++++++++++++++++++++++++++--------------- io_uring/net.h | 4 +- io_uring/rsrc.c | 60 ++++++++++++++++++++++ io_uring/rsrc.h | 3 ++ 4 files changed, 156 insertions(+), 43 deletions(-) -- 2.46.0