From owner-svn-src-head@freebsd.org Mon Sep 21 15:41:48 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 628C73F42EE; Mon, 21 Sep 2020 15:41:48 +0000 (UTC) (envelope-from dab@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4Bw7wD21Psz4P71; Mon, 21 Sep 2020 15:41:48 +0000 (UTC) (envelope-from dab@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 2A10D10279; Mon, 21 Sep 2020 15:41:48 +0000 (UTC) (envelope-from dab@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 08LFfmrM002069; Mon, 21 Sep 2020 15:41:48 GMT (envelope-from dab@FreeBSD.org) Received: (from dab@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 08LFflrK002068; Mon, 21 Sep 2020 15:41:47 GMT (envelope-from dab@FreeBSD.org) Message-Id: <202009211541.08LFflrK002068@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: dab set sender to dab@FreeBSD.org using -f From: David Bright Date: Mon, 21 Sep 2020 15:41:47 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r365946 - head/sys/dev/nvme X-SVN-Group: head X-SVN-Commit-Author: dab X-SVN-Commit-Paths: head/sys/dev/nvme X-SVN-Commit-Revision: 365946 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 21 Sep 2020 15:41:48 -0000 Author: dab Date: Mon Sep 21 15:41:47 2020 New Revision: 365946 URL: https://svnweb.freebsd.org/changeset/base/365946 Log: Add an ioctl to get an NVMe device's maximum transfer size Reviewed by: imp, chuck Obtained from: Dell EMC Isilon MFC after: 1 week Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D26390 Modified: head/sys/dev/nvme/nvme.h head/sys/dev/nvme/nvme_ctrlr.c Modified: head/sys/dev/nvme/nvme.h ============================================================================== --- head/sys/dev/nvme/nvme.h Mon Sep 21 15:24:44 2020 (r365945) +++ head/sys/dev/nvme/nvme.h Mon Sep 21 15:41:47 2020 (r365946) @@ -41,6 +41,7 @@ #define NVME_PASSTHROUGH_CMD _IOWR('n', 0, struct nvme_pt_command) #define NVME_RESET_CONTROLLER _IO('n', 1) #define NVME_GET_NSID _IOR('n', 2, struct nvme_get_nsid) +#define NVME_GET_MAX_XFER_SIZE _IOR('n', 3, uint64_t) #define NVME_IO_TEST _IOWR('n', 100, struct nvme_io_test) #define NVME_BIO_TEST _IOWR('n', 101, struct nvme_io_test) Modified: head/sys/dev/nvme/nvme_ctrlr.c ============================================================================== --- head/sys/dev/nvme/nvme_ctrlr.c Mon Sep 21 15:24:44 2020 (r365945) +++ head/sys/dev/nvme/nvme_ctrlr.c Mon Sep 21 15:41:47 2020 (r365946) @@ -1345,6 +1345,9 @@ nvme_ctrlr_ioctl(struct cdev *cdev, u_long cmd, caddr_ gnsid->nsid = 0; break; } + case NVME_GET_MAX_XFER_SIZE: + *(uint64_t *)arg = ctrlr->max_xfer_size; + break; default: return (ENOTTY); }