From patchwork Fri Feb 1 19:57:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 10793615 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6E3EC14E1 for ; Fri, 1 Feb 2019 19:57:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5B42032DD9 for ; Fri, 1 Feb 2019 19:57:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4CBF132DB8; Fri, 1 Feb 2019 19:57:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CA8BF32DB8 for ; Fri, 1 Feb 2019 19:57:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730275AbfBAT5u (ORCPT ); Fri, 1 Feb 2019 14:57:50 -0500 Received: from mail-it1-f196.google.com ([209.85.166.196]:35785 "EHLO mail-it1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730259AbfBAT5u (ORCPT ); Fri, 1 Feb 2019 14:57:50 -0500 Received: by mail-it1-f196.google.com with SMTP id p197so11646347itp.0 for ; Fri, 01 Feb 2019 11:57:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:subject:from:to:cc:date:message-id:in-reply-to:references :user-agent:mime-version:content-transfer-encoding; bh=jF0p18C3njZaaq9uN+q6IYdqIemjJ13MVyPC5Kr/7A8=; b=LsUCWFRMHw7KjCBNQ9NRNhktz4Oxt9oladYHDAlV5E1gJrmL0hgZcp+7zy/Jf3uwTS LfHPp4QtWtch5F0t1ANZr9ppyQeGfHI0Nr0YCuo+M+l5rxQRhYJ5ftfgfjLrVrPhe7f6 PN/57MBU0dWKWhkUnkEFOrbQkYoHs3p0dghdZpxDUPv9VP34IEMWsQ+06Evj/Eke7rRi NdsRsprmM725SStuOtkwBYah0ynPwjt/sF9jU+2ApnmOv+hJmtcq8W8aXi88HWX4vCpf pDdDYrMmNjQ8ONEQpm1xXfTNsHqtcXOaTMR4lxV0dbMMBWoXwHZFUzwOtaXEIVgNhYd7 WAFA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:subject:from:to:cc:date:message-id :in-reply-to:references:user-agent:mime-version :content-transfer-encoding; bh=jF0p18C3njZaaq9uN+q6IYdqIemjJ13MVyPC5Kr/7A8=; b=g1Y+/qtsw5eNysLBizDJ65d5+RSPfyj31bnz0s/ay8JwzKOkRtFZpR1rtatTGbN/eE bhmFr72JVoTTdZfCgI0Dvonej9Z5c8SF9XZ5S8QVF1CjX7b81pUdAZcbTsmbBFy81t4+ LbspAVnRYNnfozP631BNifPaQs7eV6P/7DB0pWNdx1QMhmDqjogXYt4wyenjQFy8gXeH QJL9JI8wT/BzTOWppKGDaWPcXSTIxnNJlcXdRlmLnIGkgjfOCdqq/F+9U6Et5T54SP/a u2LVdAtA2dPIxqxOkNAtZC8bdGP8hoq3RvBlW6Uk0oLcZQG7Ex4kL9KFPWpCw30rxT3I iYng== X-Gm-Message-State: AHQUAuaZs3xn6Ar7UfLMkUxVl5WPgmRYD4DWS/AwylRQmmU/1ZWM0ZUU CxjhAqja//5MTYOOb5sQVVbX813J X-Google-Smtp-Source: AHgI3Iahz1penbga3SfbUxEHfO2Y/twSZZ9u5xx/RllQyw6oJg2uzxJxZUrfsxb197rTCYU79g76gw== X-Received: by 2002:a05:660c:fd2:: with SMTP id m18mr2487502itn.1.1549051069017; Fri, 01 Feb 2019 11:57:49 -0800 (PST) Received: from gateway.1015granger.net (c-68-61-232-219.hsd1.mi.comcast.net. [68.61.232.219]) by smtp.gmail.com with ESMTPSA id l3sm1729665itb.43.2019.02.01.11.57.48 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 01 Feb 2019 11:57:48 -0800 (PST) Received: from manet.1015granger.net (manet.1015granger.net [192.168.1.51]) by gateway.1015granger.net (8.14.7/8.14.7) with ESMTP id x11Jvlwh008705; Fri, 1 Feb 2019 19:57:47 GMT Subject: [PATCH RFC 04/10] SUNRPC: Add common byte-swapped RPC header constants From: Chuck Lever To: linux-nfs@vger.kernel.org Cc: simo@redhat.com Date: Fri, 01 Feb 2019 14:57:47 -0500 Message-ID: <20190201195747.11389.75164.stgit@manet.1015granger.net> In-Reply-To: <20190201195538.11389.96106.stgit@manet.1015granger.net> References: <20190201195538.11389.96106.stgit@manet.1015granger.net> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Sender: linux-nfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Byte-swapping causes a CPU pipeline bubble on some processors. When a decoder is comparing an on-the-wire value for equality, byte- swapping can be avoided by comparing it directly to a pre-byte- swapped constant value. The current set of pre-xdr'd constants is missing some common values used in the RPC header. Fill those out. Signed-off-by: Chuck Lever --- include/linux/sunrpc/auth_gss.h | 5 ++- include/linux/sunrpc/xdr.h | 66 ++++++++++++++++++++++++--------------- 2 files changed, 45 insertions(+), 26 deletions(-) diff --git a/include/linux/sunrpc/auth_gss.h b/include/linux/sunrpc/auth_gss.h index 30427b7..adc4be2 100644 --- a/include/linux/sunrpc/auth_gss.h +++ b/include/linux/sunrpc/auth_gss.h @@ -19,7 +19,10 @@ #include #include -#define RPC_GSS_VERSION 1 +enum { + RPC_GSS_VERSION = 1, + rpc_gss_version = cpu_to_be32(RPC_GSS_VERSION) +}; #define MAXSEQ 0x80000000 /* maximum legal sequence number, from rfc 2203 */ diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h index 787939d..69161cb 100644 --- a/include/linux/sunrpc/xdr.h +++ b/include/linux/sunrpc/xdr.h @@ -17,6 +17,7 @@ #include #include #include +#include struct bio_vec; struct rpc_rqst; @@ -79,31 +80,46 @@ struct xdr_buf { buf->buflen = len; } -/* - * pre-xdr'ed macros. - */ - -#define xdr_zero cpu_to_be32(0) -#define xdr_one cpu_to_be32(1) -#define xdr_two cpu_to_be32(2) - -#define rpc_success cpu_to_be32(RPC_SUCCESS) -#define rpc_prog_unavail cpu_to_be32(RPC_PROG_UNAVAIL) -#define rpc_prog_mismatch cpu_to_be32(RPC_PROG_MISMATCH) -#define rpc_proc_unavail cpu_to_be32(RPC_PROC_UNAVAIL) -#define rpc_garbage_args cpu_to_be32(RPC_GARBAGE_ARGS) -#define rpc_system_err cpu_to_be32(RPC_SYSTEM_ERR) -#define rpc_drop_reply cpu_to_be32(RPC_DROP_REPLY) - -#define rpc_auth_ok cpu_to_be32(RPC_AUTH_OK) -#define rpc_autherr_badcred cpu_to_be32(RPC_AUTH_BADCRED) -#define rpc_autherr_rejectedcred cpu_to_be32(RPC_AUTH_REJECTEDCRED) -#define rpc_autherr_badverf cpu_to_be32(RPC_AUTH_BADVERF) -#define rpc_autherr_rejectedverf cpu_to_be32(RPC_AUTH_REJECTEDVERF) -#define rpc_autherr_tooweak cpu_to_be32(RPC_AUTH_TOOWEAK) -#define rpcsec_gsserr_credproblem cpu_to_be32(RPCSEC_GSS_CREDPROBLEM) -#define rpcsec_gsserr_ctxproblem cpu_to_be32(RPCSEC_GSS_CTXPROBLEM) -#define rpc_autherr_oldseqnum cpu_to_be32(101) +enum xdr_be32_equivalents { + xdr_zero = cpu_to_be32(0), + xdr_one = cpu_to_be32(1), + xdr_two = cpu_to_be32(2), + + rpc_version = cpu_to_be32(RPC_VERSION), + + rpc_auth_null = cpu_to_be32(RPC_AUTH_NULL), + rpc_auth_unix = cpu_to_be32(RPC_AUTH_UNIX), + rpc_auth_short = cpu_to_be32(RPC_AUTH_SHORT), + rpc_auth_des = cpu_to_be32(RPC_AUTH_DES), + rpc_auth_krb = cpu_to_be32(RPC_AUTH_KRB), + rpc_auth_gss = cpu_to_be32(RPC_AUTH_GSS), + + rpc_call = cpu_to_be32(RPC_CALL), + rpc_reply = cpu_to_be32(RPC_REPLY), + + rpc_msg_accepted = cpu_to_be32(RPC_MSG_ACCEPTED), + rpc_msg_denied = cpu_to_be32(RPC_MSG_DENIED), + + rpc_success = cpu_to_be32(RPC_SUCCESS), + rpc_prog_unavail = cpu_to_be32(RPC_PROG_UNAVAIL), + rpc_prog_mismatch = cpu_to_be32(RPC_PROG_MISMATCH), + rpc_proc_unavail = cpu_to_be32(RPC_PROC_UNAVAIL), + rpc_garbage_args = cpu_to_be32(RPC_GARBAGE_ARGS), + rpc_system_err = cpu_to_be32(RPC_SYSTEM_ERR), + rpc_drop_reply = cpu_to_be32(RPC_DROP_REPLY), + + rpc_mismatch = cpu_to_be32(RPC_MISMATCH), + rpc_auth_error = cpu_to_be32(RPC_AUTH_ERROR), + + rpc_auth_ok = cpu_to_be32(RPC_AUTH_OK), + rpc_autherr_badcred = cpu_to_be32(RPC_AUTH_BADCRED), + rpc_autherr_rejectedcred = cpu_to_be32(RPC_AUTH_REJECTEDCRED), + rpc_autherr_badverf = cpu_to_be32(RPC_AUTH_BADVERF), + rpc_autherr_rejectedverf = cpu_to_be32(RPC_AUTH_REJECTEDVERF), + rpc_autherr_tooweak = cpu_to_be32(RPC_AUTH_TOOWEAK), + rpcsec_gsserr_credproblem = cpu_to_be32(RPCSEC_GSS_CREDPROBLEM), + rpcsec_gsserr_ctxproblem = cpu_to_be32(RPCSEC_GSS_CTXPROBLEM), +}; /* * Miscellaneous XDR helper functions