From patchwork Thu Apr 3 21:17:44 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 878133 Received: from 004.mia.mailroute.net (004.mia.mailroute.net [199.89.3.7]) (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 549412E62D4 for ; Thu, 3 Apr 2025 21:21:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.3.7 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743715316; cv=none; b=Q9Gt21uE0E7BYSGqVdw79MUwpx098xwSD9yA1N4o1GX9lmq0lREB8R17u9jV8A0gtZoyOMm+l95pAl53fmZaoYFMfIhhfL9RhSFFH8euQ8lLChpO8uUHULQILIkxjAomFY6G/ViQiwsqJ8av7EsdbJj2/+h2NI1eqKDgJOTe7W4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743715316; c=relaxed/simple; bh=we5tJTolw5aBZ8H+WkMA9LMcMmH0F6faI3LDPAc9TzM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Dn2quXFaIbHy9rkF4M8LDKKErSuvEcgNkcPX3ezLP2b093fXdVJ/AqSjgkNrqFtJSsSkXe95p7Le2Al/D6ZK35uPibsZX+WIPCCq0VRf/ZvLqErH80XTQLZGYLJoQWbPLzDjlTQa7j1yGyMyvtu2HK64L77a2AemG3cfeHkKCjU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=w59Q4/b0; arc=none smtp.client-ip=199.89.3.7 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="w59Q4/b0" Received: from localhost (localhost [127.0.0.1]) by 004.mia.mailroute.net (Postfix) with ESMTP id 4ZTF4M3Ly5zm0pKK; Thu, 3 Apr 2025 21:19:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:mime-version:x-mailer:message-id:date :date:subject:subject:from:from:received:received; s=mr01; t= 1743715186; x=1746307187; bh=ONkm/VcPo7SpCBbuTYUIASGA0ESRFY4DYvB n7C18rqY=; b=w59Q4/b0ca3SkACt6a2G+Wou8g/rRtli895nhbkkdNO5Uuis6o2 p9goysk/jUd9+aSIllCrjYOBChj5BNjRVB7yhcGFUpLunoLz07+McSi5wOArx2pH 3Fq4bN0Q8PSE3SVQG5wxK+chYDpFa10j4xToIizjRwlU+O3lIcoy5cGBK2qCz4fD gS5jKXcpFwBonKoHEJ/PbSlSFyFRF2dvcD6SK5dv4zKwnxxOy50dttIs9oUBfap1 ZBjEKzEVFkNUFYlQ25jfkaHWzWtCvhC4cI/4v28LXve8Lw/De1BnG4F5XJ8Vt49w +BcjPKIw16A76OyDQ+dSTwE6vtTwXzQ4NqA== X-Virus-Scanned: by MailRoute Received: from 004.mia.mailroute.net ([127.0.0.1]) by localhost (004.mia [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id q3fW3nPv1ySC; Thu, 3 Apr 2025 21:19:46 +0000 (UTC) Received: from bvanassche.mtv.corp.google.com (unknown [104.135.204.82]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 004.mia.mailroute.net (Postfix) with ESMTPSA id 4ZTF4J6tcZzmWRtQ; Thu, 3 Apr 2025 21:19:43 +0000 (UTC) From: Bart Van Assche To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Bart Van Assche Subject: [PATCH 00/24] Optimize the hot path in the UFS driver Date: Thu, 3 Apr 2025 14:17:44 -0700 Message-ID: <20250403211937.2225615-1-bvanassche@acm.org> X-Mailer: git-send-email 2.49.0.504.g3bcea36a83-goog Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hi Martin, This patch series increases IOPS by 1% and reduces CPU per I/O by 10% on my UFS 4.0 test setup. Please consider this patch series for the next merge window. Thanks, Bart. Bart Van Assche (23): scsi: core: Make scsi_cmd_to_rq() accept const arguments scsi: core: Make scsi_cmd_priv() accept const arguments scsi: core: Use scsi_cmd_priv() instead of open-coding it scsi: core: Introduce scsi_host_update_can_queue() scsi: ufs: core: Change the type of one ufshcd_add_cmd_upiu_trace() argument scsi: ufs: core: Only call ufshcd_add_command_trace() for SCSI commands scsi: ufs: core: Change the type of one ufshcd_add_command_trace() argument scsi: ufs: core: Change the type of one ufshcd_send_command() argument scsi: ufs: core: Only call ufshcd_should_inform_monitor() for SCSI commands scsi: ufs: core: Change the monitor function argument types scsi: ufs: core: Rework ufshcd_mcq_compl_pending_transfer() scsi: ufs: core: Rework ufshcd_eh_device_reset_handler() scsi: ufs: core: Cache the DMA buffer sizes scsi: ufs: core: Add an argument to ufshcd_mcq_decide_queue_depth() scsi: ufs: core: Add an argument to ufshcd_alloc_mcq() scsi: ufs: core: Call ufshcd_mcq_init() once scsi: ufs: core: Allocate the SCSI host earlier scsi: ufs: core: Call ufshcd_init_lrb() later scsi: ufs: core: Use hba->reserved_slot scsi: ufs: core: Allocate the reserved slot as a reserved request scsi: ufs: core: Do not clear driver-private command data scsi: ufs: core: Optimize the hot path scsi: ufs: core: Remove the ufshcd_lrb task_tag member Hannes Reinecke (1): scsi: core: Implement reserved command handling drivers/scsi/hosts.c | 3 + drivers/scsi/scsi.c | 26 ++ drivers/scsi/scsi_lib.c | 6 +- drivers/scsi/scsi_logging.c | 10 +- drivers/ufs/core/ufs-mcq.c | 31 +- drivers/ufs/core/ufshcd-crypto.h | 18 +- drivers/ufs/core/ufshcd-priv.h | 27 +- drivers/ufs/core/ufshcd.c | 660 +++++++++++++++++-------------- include/scsi/scsi_cmnd.h | 17 +- include/scsi/scsi_host.h | 24 +- include/ufs/ufshcd.h | 11 +- 11 files changed, 487 insertions(+), 346 deletions(-)