From owner-svn-src-all@FreeBSD.ORG Wed Oct 23 18:54:59 2013 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 28C397B8; Wed, 23 Oct 2013 18:54:59 +0000 (UTC) (envelope-from grehan@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 1636D2538; Wed, 23 Oct 2013 18:54:59 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r9NIswS4000675; Wed, 23 Oct 2013 18:54:58 GMT (envelope-from grehan@svn.freebsd.org) Received: (from grehan@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r9NIswRM000674; Wed, 23 Oct 2013 18:54:58 GMT (envelope-from grehan@svn.freebsd.org) Message-Id: <201310231854.r9NIswRM000674@svn.freebsd.org> From: Peter Grehan Date: Wed, 23 Oct 2013 18:54:58 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r257005 - head/usr.sbin/bhyve X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Oct 2013 18:54:59 -0000 Author: grehan Date: Wed Oct 23 18:54:58 2013 New Revision: 257005 URL: http://svnweb.freebsd.org/changeset/base/257005 Log: Export the block size capability to guests. - Use #defines for capability bits - Export the VTBLK_F_BLK_SIZE capability - Fix bug in calculating capacity: it is in 512-byte units, not the underlying sector size This allows virtio-blk to have backing devices with non 512-byte sector sizes e.g. /dev/cd0, and 4K-block harddrives. Reviewed by: neel MFC after: 3 days Modified: head/usr.sbin/bhyve/pci_virtio_block.c Modified: head/usr.sbin/bhyve/pci_virtio_block.c ============================================================================== --- head/usr.sbin/bhyve/pci_virtio_block.c Wed Oct 23 18:36:05 2013 (r257004) +++ head/usr.sbin/bhyve/pci_virtio_block.c Wed Oct 23 18:54:58 2013 (r257005) @@ -66,11 +66,16 @@ __FBSDID("$FreeBSD$"); #define VTBLK_BLK_ID_BYTES 20 +/* Capability bits */ +#define VTBLK_F_SEG_MAX (1 << 2) /* Maximum request segments */ +#define VTBLK_F_BLK_SIZE (1 << 6) /* cfg block size valid */ + /* * Host capabilities */ #define VTBLK_S_HOSTCAPS \ - ( 0x00000004 | /* host maximum request segments */ \ + ( VTBLK_F_SEG_MAX | \ + VTBLK_F_BLK_SIZE | \ VIRTIO_RING_F_INDIRECT_DESC ) /* indirect descriptors */ /* @@ -315,7 +320,7 @@ pci_vtblk_init(struct vmctx *ctx, struct digest[0], digest[1], digest[2], digest[3], digest[4], digest[5]); /* setup virtio block config space */ - sc->vbsc_cfg.vbc_capacity = size / sectsz; + sc->vbsc_cfg.vbc_capacity = size / DEV_BSIZE; /* 512-byte units */ sc->vbsc_cfg.vbc_seg_max = VTBLK_MAXSEGS; sc->vbsc_cfg.vbc_blk_size = sectsz; sc->vbsc_cfg.vbc_size_max = 0; /* not negotiated */