From patchwork Fri Oct 25 21:36:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keith Busch X-Patchwork-Id: 839073 Received: from mx0a-00082601.pphosted.com (mx0a-00082601.pphosted.com [67.231.145.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 945B0217F4C for ; Fri, 25 Oct 2024 21:37:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=67.231.145.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729892246; cv=none; b=cV+wpuED4BNlh0jv921NzxgOYWW1+yTLSNhL0cFUmN6b8BT2nzm5iPdrFk9dC9cbpEzkO4L0oj+YCZo+taGhYlgm/9nFqKobJKANhxmcrhl3ytvNZ4QauPtZivdKzRBU/PJp4R2apx6/K1AUOjokl6KrtkqOZ1keZryY1b+P5fI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729892246; c=relaxed/simple; bh=YOZ58UBNTMsnhcYtd0gZ1ZqymIVjFUr/1L3J9cjAsaQ=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=djJAfI7cXQeGqwo1727nADsE5aSoH9aeWRv73d8LWTuOx/ckVVE07Q8vHJCZ/C00CPURTbMgWCkK7wle9bfUGY2p567EyWpzdPzBYdVc5abXju0njwAXqT1xGkJR7e39MXcpnDZXJI7L67OrbJ9WFi9p5XVQ8A7ND6r6ovn8yto= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=meta.com; spf=pass smtp.mailfrom=meta.com; dkim=pass (2048-bit key) header.d=meta.com header.i=@meta.com header.b=b4Ljz4jb; arc=none smtp.client-ip=67.231.145.42 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=meta.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=meta.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=meta.com header.i=@meta.com header.b="b4Ljz4jb" Received: from pps.filterd (m0109333.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 49PKcxm3024276 for ; Fri, 25 Oct 2024 14:37:24 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=meta.com; h=cc :content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=s2048-2021-q4; bh=/GQfP/1bQVo+MIHxlX /7bWekCbFNLz0QJfbEivfPyp8=; b=b4Ljz4jbiYYgNE6E7pJJS61xYVIOwWwnIZ 8bWHNKURSQBglgrN/fF3PasxbhGqOVFlXIsJfllFNojf/KldUjUn0wuC+D4+0UIT a4o8JMppCG2/qzxtExf4OVSc/LThDiDDZ0rmxndnrSKSCR6tj1fxi+t59JmGgij8 sSfIQUQSa5K3BACjIatE7kw5hsU2voOHUwSuHcQnsRJL7FSU3jkN8+eGWfMH5L1h 86ud3IUzEsKDFlfkdAu0/4TXulZpJ3WiYvMltx6DKAtEfXEiQGJx3eXKwprjPs6n 8cMg4ICj0P3BGD3yfveg8MCUR86wCsUyEhmbtuDULGTKvvLMOP/A== Received: from mail.thefacebook.com ([163.114.134.16]) by mx0a-00082601.pphosted.com (PPS) with ESMTPS id 42gjhxrbx8-7 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Fri, 25 Oct 2024 14:37:23 -0700 (PDT) Received: from twshared13976.17.frc2.facebook.com (2620:10d:c085:208::7cb7) by mail.thefacebook.com (2620:10d:c08b:78::2ac9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.1544.11; Fri, 25 Oct 2024 21:37:20 +0000 Received: by devbig638.nha1.facebook.com (Postfix, from userid 544533) id 6023F1476D735; Fri, 25 Oct 2024 14:37:06 -0700 (PDT) From: Keith Busch To: , , , CC: , , , , , Keith Busch Subject: [PATCHv9 0/7] write hints with nvme fdp, scsi streams Date: Fri, 25 Oct 2024 14:36:38 -0700 Message-ID: <20241025213645.3464331-1-kbusch@meta.com> X-Mailer: git-send-email 2.43.5 Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-GUID: BxsHVNsYm4MTCpND_cHUjbXNoz2eFvvM X-Proofpoint-ORIG-GUID: BxsHVNsYm4MTCpND_cHUjbXNoz2eFvvM X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-05_03,2024-10-04_01,2024-09-30_01 From: Keith Busch A little something for everyone here. Upfront, I really didn't get the feedback about setting different flags for stream vs. temperature support. Who wants to use it, and where and how is that information used? Changes from v8: Added reviews. Removed an unused header. Changed "hint" to "streams" in the commit logs. Ability to split available hints that a partition can use. Dropped all the generic filesystem changes that were defaulting to the kiocb write_hint. They are unchanged, which having no functional change was really the intention anyway, so let's just not change them. The above means we don't need a special fop flag to indicate support for the kiocb write_hint. Those filesystems that don't support it simply don't read it. Added the SCSI support since I had to read the spec anyway, and it is just a one-line change. Kanchan Joshi (2): io_uring: enable per-io hinting capability nvme: enable FDP support Keith Busch (5): block: use generic u16 for write hints block: introduce max_write_hints queue limit block: allow ability to limit partition write hints block, fs: add write hint to kiocb scsi: set permanent stream count in block limits Documentation/ABI/stable/sysfs-block | 7 +++ block/bdev.c | 15 +++++ block/blk-settings.c | 3 + block/blk-sysfs.c | 3 + block/fops.c | 26 ++++++++- block/partitions/core.c | 46 +++++++++++++++- drivers/nvme/host/core.c | 82 ++++++++++++++++++++++++++++ drivers/nvme/host/nvme.h | 5 ++ drivers/scsi/sd.c | 2 + include/linux/blk-mq.h | 3 +- include/linux/blk_types.h | 4 +- include/linux/blkdev.h | 12 ++++ include/linux/fs.h | 1 + include/linux/nvme.h | 19 +++++++ include/uapi/linux/io_uring.h | 4 ++ io_uring/rw.c | 3 +- 16 files changed, 225 insertions(+), 10 deletions(-)