From owner-dev-commits-src-all@freebsd.org Tue Apr 20 00:57:41 2021 Return-Path: Delivered-To: dev-commits-src-all@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 0FBA35DD4C6; Tue, 20 Apr 2021 00:57:41 +0000 (UTC) (envelope-from git@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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FPQJj00C3z3KG8; Tue, 20 Apr 2021 00:57:41 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id DC2F212B4; Tue, 20 Apr 2021 00:57:40 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 13K0vepq050213; Tue, 20 Apr 2021 00:57:40 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 13K0vedV050212; Tue, 20 Apr 2021 00:57:40 GMT (envelope-from git) Date: Tue, 20 Apr 2021 00:57:40 GMT Message-Id: <202104200057.13K0vedV050212@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Rick Macklem Subject: git: 5a89498d1986 - main - nfsd: fix stripe size reply for the File Layout pNFS server MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: rmacklem X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 5a89498d19863d0c4cb074f9b93862a70040bf1b Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Apr 2021 00:57:41 -0000 The branch main has been updated by rmacklem: URL: https://cgit.FreeBSD.org/src/commit/?id=5a89498d19863d0c4cb074f9b93862a70040bf1b commit 5a89498d19863d0c4cb074f9b93862a70040bf1b Author: Rick Macklem AuthorDate: 2021-04-20 00:51:07 +0000 Commit: Rick Macklem CommitDate: 2021-04-20 00:54:54 +0000 nfsd: fix stripe size reply for the File Layout pNFS server At a recent testing event I found out that I had misinterpreted RFC5661 where it describes the stripe size in the File Layout's nfl_util field. This patch fixes the pNFS File Layout server so that it returns the correct value to the NFSv4.1/4.2 pNFS enabled client. This affects almost no one, since pNFS server configurations are rare and the extant pNFS aware NFS clients seemed to function correctly despite the erroneous stripe size. It *might* be needed for correct behaviour if a recent Linux client mounts a FreeBSD pNFS server configuration that is using File Layout (non-mirrored configuration). MFC after: 2 weeks --- sys/fs/nfsserver/nfs_nfsdstate.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/sys/fs/nfsserver/nfs_nfsdstate.c b/sys/fs/nfsserver/nfs_nfsdstate.c index fa7bb3ba9f56..60647ab288d8 100644 --- a/sys/fs/nfsserver/nfs_nfsdstate.c +++ b/sys/fs/nfsserver/nfs_nfsdstate.c @@ -6873,14 +6873,8 @@ nfsrv_filelayout(struct nfsrv_descript *nd, int iomode, fhandle_t *fhp, NFSBCOPY(devid, tl, NFSX_V4DEVICEID); /* Device ID. */ tl += (NFSX_V4DEVICEID / NFSX_UNSIGNED); - /* - * Make the stripe size as many 64K blocks as will fit in the stripe - * mask. Since there is only one stripe, the stripe size doesn't really - * matter, except that the Linux client will only handle an exact - * multiple of their PAGE_SIZE (usually 4K). I chose 64K as a value - * that should cover most/all arches w.r.t. PAGE_SIZE. - */ - *tl++ = txdr_unsigned(NFSFLAYUTIL_STRIPE_MASK & ~0xffff); + /* Set the stripe size to the maximum I/O size. */ + *tl++ = txdr_unsigned(NFS_SRVMAXIO & NFSFLAYUTIL_STRIPE_MASK); *tl++ = 0; /* 1st stripe index. */ pattern_offset = 0; txdr_hyper(pattern_offset, tl); tl += 2; /* Pattern offset. */