From owner-svn-src-head@freebsd.org Fri Jul 3 01:19:30 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 945143641DE; Fri, 3 Jul 2020 01:19:30 +0000 (UTC) (envelope-from rmacklem@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 49ycZB3PJPz4VYH; Fri, 3 Jul 2020 01:19:30 +0000 (UTC) (envelope-from rmacklem@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 5874F239BF; Fri, 3 Jul 2020 01:19:30 +0000 (UTC) (envelope-from rmacklem@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 0631JUuh042081; Fri, 3 Jul 2020 01:19:30 GMT (envelope-from rmacklem@FreeBSD.org) Received: (from rmacklem@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 0631JTvr042079; Fri, 3 Jul 2020 01:19:29 GMT (envelope-from rmacklem@FreeBSD.org) Message-Id: <202007030119.0631JTvr042079@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: rmacklem set sender to rmacklem@FreeBSD.org using -f From: Rick Macklem Date: Fri, 3 Jul 2020 01:19:29 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r362903 - head/sys/fs/nfs X-SVN-Group: head X-SVN-Commit-Author: rmacklem X-SVN-Commit-Paths: head/sys/fs/nfs X-SVN-Commit-Revision: 362903 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: Fri, 03 Jul 2020 01:19:30 -0000 Author: rmacklem Date: Fri Jul 3 01:19:29 2020 New Revision: 362903 URL: https://svnweb.freebsd.org/changeset/base/362903 Log: Add support for ext_pgs mbufs to nfsm_build(). This is the first of a series of commits that add support to the NFS client and server for building RPC messages in ext_pgs mbufs with anonymous pages. This is useful so that the entire mbuf list does not need to be copied before calling sosend() when NFS over TLS is enabled. Since ND_EXTPG is never set yet, there is no semantic change at this time. Modified: head/sys/fs/nfs/nfsm_subs.h head/sys/fs/nfs/nfsport.h Modified: head/sys/fs/nfs/nfsm_subs.h ============================================================================== --- head/sys/fs/nfs/nfsm_subs.h Fri Jul 3 00:09:41 2020 (r362902) +++ head/sys/fs/nfs/nfsm_subs.h Fri Jul 3 01:19:29 2020 (r362903) @@ -64,14 +64,27 @@ nfsm_build(struct nfsrv_descript *nd, int siz) void *retp; struct mbuf *mb2; - if (siz > M_TRAILINGSPACE(nd->nd_mb)) { + if ((nd->nd_flag & ND_EXTPG) == 0 && + siz > M_TRAILINGSPACE(nd->nd_mb)) { NFSMCLGET(mb2, M_NOWAIT); if (siz > MLEN) panic("build > MLEN"); mb2->m_len = 0; - nd->nd_bpos = mtod(mb2, caddr_t); + nd->nd_bpos = mtod(mb2, char *); nd->nd_mb->m_next = mb2; nd->nd_mb = mb2; + } else if ((nd->nd_flag & ND_EXTPG) != 0) { + if (siz > nd->nd_bextpgsiz) { + mb2 = mb_alloc_ext_plus_pages(PAGE_SIZE, M_WAITOK); + nd->nd_bpos = (char *)(void *) + PHYS_TO_DMAP(mb2->m_epg_pa[0]); + nd->nd_bextpg = 0; + nd->nd_bextpgsiz = PAGE_SIZE - siz; + nd->nd_mb->m_next = mb2; + nd->nd_mb = mb2; + } else + nd->nd_bextpgsiz -= siz; + nd->nd_mb->m_epg_last_len += siz; } retp = (void *)(nd->nd_bpos); nd->nd_mb->m_len += siz; Modified: head/sys/fs/nfs/nfsport.h ============================================================================== --- head/sys/fs/nfs/nfsport.h Fri Jul 3 00:09:41 2020 (r362902) +++ head/sys/fs/nfs/nfsport.h Fri Jul 3 01:19:29 2020 (r362903) @@ -109,8 +109,9 @@ #include #include #include -#include #include +#include +#include #include #include "opt_nfs.h" #include "opt_ufs.h"