From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f52.google.com (mail-wm1-f52.google.com [209.85.128.52]) (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 0FCB91FDF92 for ; Fri, 15 Nov 2024 21:33:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731706402; cv=none; b=Gynun1Bie0xrN/ANtCvfDv5LnrWbOT2QW1KLph2jDBro8jUxUzwyJV+D+5XaPBAGkGLz6uVFKmAGN9bw8WWjKi3DHf1jhEd1zpI1WxMAIYr1GC3tcL/N5/6maWxCFm87e1Ph2AoqW4EFRjFmVn8xPc6eIZLolKtKY+zo7LFHoro= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731706402; c=relaxed/simple; bh=wwGynPXkF20AraUsK2w2sohhhqLepUdz8Q0unalezdg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mopFz7SNIqLgCwbmPy9Ei/14pKiouhU1gpuSCze+SPZIfBivZOiPgEbMAakqUsHDgSGZa1HVVGv0GYJ64VDJIub4hErhcHJk7nIrg/jaWsHzi2CVImuwFyXzzftp6OgpwYw4MoZ/pNpDXjPLfrQyS6m2sWs29+pjqqhMovciRSM= 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=cWE0hcE0; arc=none smtp.client-ip=209.85.128.52 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="cWE0hcE0" Received: by mail-wm1-f52.google.com with SMTP id 5b1f17b1804b1-43158625112so798015e9.3 for ; Fri, 15 Nov 2024 13:33:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1731706394; x=1732311194; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=YNM2WJwBXprOb2QXvwXlSAYOSUSwg9yszuSdSI916n0=; b=cWE0hcE0+Ogqxgiv1Wr8Euafk0J3u04H5kqlKk6VuP2VovN3OeoYERzv6sIJcSka4g HeRUrfz3EjNr4mvjrWOUkZpDL64V45y0v20/k8qoR/p0hia5LLIKbt7HTiVE1z+5itEP btRlwFEnJBSckSFG0vtEFQdJVUVj4OnA3se8nRvRTW+qIjxcaAgTXTJ4kYfBUyK1I5lU pAhI4k0K5gksHuqrnqrT0a8mjTgeUXS+n0om4mYEYn5zolEiQZmEhPqay9TZUIiV4Rxg NtnmrOv6clNGpxqMbIwnXu5KO4XcHnXvGzyHFshC6FnAlebCZvR3Jv2I+b61xB7Eo9Wr H1ig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731706394; x=1732311194; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=YNM2WJwBXprOb2QXvwXlSAYOSUSwg9yszuSdSI916n0=; b=lDdgABvcpVkevOhC4dlWCo162gk/R0ZmooY22NeovqPd+EpVUNJcBaoj9y0hoWsX19 CJjdG29idnWQ6uMmm91izLtgZm0uWEkTL39zltgmnLW1FHHWjs8lwFSe6Q+zpNMrxReT bPPNtJXgHpbiSeJPYdBg3vGUsF9JXLAzFpiDiPM/8BUO1SeYc3Q6dCel7LUMbXxSphMT 1Sv/0cBTPbPjZE95dZpj9uteWIgqb4NqL49jnjdRJEsEdTdennyZSp3OLeUO1XEVs1eG RQytFa9b/jbJkZ4XxVJBg80f8sOLbve6ZZXvqRM/NRtyILFQOo3Eos6YyV1+0UUWTh1s IDuw== X-Gm-Message-State: AOJu0YwITRRoWsoQkwMD71NF+TbrVGRdAGtMX5T/4beFp4i5ospOM3TA AlLTePdhwlTKbxckpMupWBeGafgvyeFFJktvvflsp9GW2BQCf14Z/OHtrg== X-Google-Smtp-Source: AGHT+IFr1yNDAeV0E8HJX8oyRBmW6eWQ77dafhJ8oZIW2UrxNZP4AbKAL45fMzRj2yt8Vg3R2d+TVg== X-Received: by 2002:a05:6000:481c:b0:382:d0b:179a with SMTP id ffacd0b85a97d-382258f0beamr3061457f8f.6.1731706394306; Fri, 15 Nov 2024 13:33:14 -0800 (PST) Received: from 127.0.0.1localhost ([148.252.132.111]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-382247849b0sm3397258f8f.97.2024.11.15.13.33.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Nov 2024 13:33:13 -0800 (PST) From: Pavel Begunkov To: io-uring@vger.kernel.org Cc: asml.silence@gmail.com Subject: [PATCH liburing 3/8] queue: add region helpers and fix up wait reg kernel api Date: Fri, 15 Nov 2024 21:33:50 +0000 Message-ID: X-Mailer: git-send-email 2.46.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Now the kernel expects a byte offset instead of a struct io_uring_reg_wait index. Also add a helper for registering a region of memory. Signed-off-by: Pavel Begunkov --- src/include/liburing.h | 4 +++- src/liburing-ffi.map | 1 + src/liburing.map | 1 + src/queue.c | 4 +++- src/register.c | 6 ++++++ 5 files changed, 14 insertions(+), 2 deletions(-) diff --git a/src/include/liburing.h b/src/include/liburing.h index 4d45dca..81ffe6e 100644 --- a/src/include/liburing.h +++ b/src/include/liburing.h @@ -285,8 +285,10 @@ int io_uring_register(unsigned int fd, unsigned int opcode, const void *arg, unsigned int nr_args); /* - * Mapped/registered wait regions + * Mapped/registered regions */ +int io_uring_register_region(struct io_uring *ring, + struct io_uring_mem_region_reg *reg); struct io_uring_reg_wait *io_uring_setup_reg_wait(struct io_uring *ring, unsigned nentries, int *err); void io_uring_free_reg_wait(struct io_uring_reg_wait *reg, unsigned nentries); diff --git a/src/liburing-ffi.map b/src/liburing-ffi.map index 0985f78..117a46a 100644 --- a/src/liburing-ffi.map +++ b/src/liburing-ffi.map @@ -224,4 +224,5 @@ LIBURING_2.9 { io_uring_free_reg_wait; io_uring_setup_reg_wait; io_uring_clone_buffers_offset; + io_uring_register_region; } LIBURING_2.8; diff --git a/src/liburing.map b/src/liburing.map index 998621d..46edbc9 100644 --- a/src/liburing.map +++ b/src/liburing.map @@ -111,4 +111,5 @@ LIBURING_2.9 { io_uring_free_reg_wait; io_uring_setup_reg_wait; io_uring_clone_buffers_offset; + io_uring_register_region; } LIBURING_2.8; diff --git a/src/queue.c b/src/queue.c index 1692866..5f28e01 100644 --- a/src/queue.c +++ b/src/queue.c @@ -324,6 +324,8 @@ int io_uring_submit_and_wait_reg(struct io_uring *ring, struct io_uring_cqe **cqe_ptr, unsigned wait_nr, int reg_index) { + unsigned long offset = reg_index * sizeof(struct io_uring_reg_wait); + struct get_data data = { .submit = __io_uring_flush_sq(ring), .wait_nr = wait_nr, @@ -331,7 +333,7 @@ int io_uring_submit_and_wait_reg(struct io_uring *ring, IORING_ENTER_EXT_ARG_REG, .sz = sizeof(struct io_uring_reg_wait), .has_ts = true, - .arg = (void *) (uintptr_t) reg_index, + .arg = (void *) (uintptr_t) offset, }; if (!(ring->features & IORING_FEAT_EXT_ARG)) diff --git a/src/register.c b/src/register.c index d566f5c..0fff208 100644 --- a/src/register.c +++ b/src/register.c @@ -470,3 +470,9 @@ int io_uring_register_wait_reg(struct io_uring *ring, { return -EINVAL; } + +int io_uring_register_region(struct io_uring *ring, + struct io_uring_mem_region_reg *reg) +{ + return do_register(ring, IORING_REGISTER_MEM_REGION, reg, 1); +} -- 2.46.0