From patchwork Thu Mar 2 16:01:12 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Olga Kornievskaia X-Patchwork-Id: 9601211 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 6F41C60414 for ; Thu, 2 Mar 2017 17:44:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 62FC324603 for ; Thu, 2 Mar 2017 17:44:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 574D7285BB; Thu, 2 Mar 2017 17:44:06 +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=-6.9 required=2.0 tests=BAYES_00,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 C53FD24603 for ; Thu, 2 Mar 2017 17:44:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751767AbdCBRoC (ORCPT ); Thu, 2 Mar 2017 12:44:02 -0500 Received: from mx141.netapp.com ([216.240.21.12]:10047 "EHLO mx141.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751422AbdCBRoA (ORCPT ); Thu, 2 Mar 2017 12:44:00 -0500 X-IronPort-AV: E=Sophos;i="5.35,232,1484035200"; d="scan'208";a="186941963" Received: from vmwexchts02-prd.hq.netapp.com ([10.122.105.23]) by mx141-out.netapp.com with ESMTP; 02 Mar 2017 07:52:52 -0800 Received: from smtp2.corp.netapp.com (10.57.159.114) by VMWEXCHTS02-PRD.hq.netapp.com (10.122.105.23) with Microsoft SMTP Server id 15.0.1210.3; Thu, 2 Mar 2017 08:01:25 -0800 Received: from localhost.localdomain ([10.63.239.5]) by smtp2.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id v22G1KHZ017525; Thu, 2 Mar 2017 08:01:27 -0800 (PST) From: Olga Kornievskaia To: CC: Subject: [RFC v1 08/19] NFS OFFLOAD_STATUS xdr Date: Thu, 2 Mar 2017 11:01:12 -0500 Message-ID: <20170302160123.30375-9-kolga@netapp.com> X-Mailer: git-send-email 2.10.1 (Apple Git-78) In-Reply-To: <20170302160123.30375-1-kolga@netapp.com> References: <20170302160123.30375-1-kolga@netapp.com> 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 Signed-off-by: Olga Kornievskaia --- fs/nfs/nfs42xdr.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++ fs/nfs/nfs4proc.c | 1 + fs/nfs/nfs4xdr.c | 1 + include/linux/nfs4.h | 1 + include/linux/nfs_fs_sb.h | 1 + include/linux/nfs_xdr.h | 12 +++++++ 6 files changed, 103 insertions(+) diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c index fa0daaa..352af86 100644 --- a/fs/nfs/nfs42xdr.c +++ b/fs/nfs/nfs42xdr.c @@ -38,6 +38,11 @@ 1 + /* Support 1 cnr_source_server */\ 1 + /* nl4_type */ \ 1 + XDR_QUADLEN(NFS4_OPAQUE_LIMIT)) +#define encode_offload_status_maxsz (op_encode_hdr_maxsz + \ + XDR_QUADLEN(NFS4_STATEID_SIZE)) +#define decode_offload_status_maxsz (op_decode_hdr_maxsz + \ + 2 /* osr_count */ + \ + 1 + 1 /* osr_complete<1> */) #define encode_deallocate_maxsz (op_encode_hdr_maxsz + \ encode_fallocate_maxsz) #define decode_deallocate_maxsz (op_decode_hdr_maxsz) @@ -91,6 +96,12 @@ #define NFS4_dec_copy_notify_sz (compound_decode_hdr_maxsz + \ decode_putfh_maxsz + \ decode_copy_notify_maxsz) +#define NFS4_enc_offload_status_sz (compound_encode_hdr_maxsz + \ + encode_putfh_maxsz + \ + encode_offload_status_maxsz) +#define NFS4_dec_offload_status_sz (compound_decode_hdr_maxsz + \ + decode_putfh_maxsz + \ + decode_offload_status_maxsz) #define NFS4_enc_deallocate_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ encode_deallocate_maxsz + \ @@ -201,6 +212,14 @@ static void encode_copy_notify(struct xdr_stream *xdr, encode_nl4_server(xdr, &args->cna_dst); } +static void encode_offload_status(struct xdr_stream *xdr, + struct nfs42_offload_status_args *args, + struct compound_hdr *hdr) +{ + encode_op_hdr(xdr, OP_OFFLOAD_STATUS, decode_offload_status_maxsz, hdr); + encode_nfs4_stateid(xdr, &args->osa_stateid); +} + static void encode_deallocate(struct xdr_stream *xdr, struct nfs42_falloc_args *args, struct compound_hdr *hdr) @@ -320,6 +339,24 @@ static void nfs4_xdr_enc_copy_notify(struct rpc_rqst *req, } /* + * Encode OFFLOAD_STATUS request + */ +static void nfs4_xdr_enc_offload_status(struct rpc_rqst *req, + struct xdr_stream *xdr, + struct nfs42_offload_status_args *args) +{ + struct compound_hdr hdr = { + .minorversion = nfs4_xdr_minorversion(&args->osa_seq_args), + }; + + encode_compound_hdr(xdr, req, &hdr); + encode_sequence(xdr, &args->osa_seq_args, &hdr); + encode_putfh(xdr, args->osa_src_fh, &hdr); + encode_offload_status(xdr, args, &hdr); + encode_nops(&hdr); +} + +/* * Encode DEALLOCATE request */ static void nfs4_xdr_enc_deallocate(struct rpc_rqst *req, @@ -567,6 +604,31 @@ static int decode_copy_notify(struct xdr_stream *xdr, return -EIO; } +static int decode_offload_status(struct xdr_stream *xdr, + struct nfs42_offload_status_res *res) +{ + __be32 *p; + uint32_t count; + int status; + + status = decode_op_hdr(xdr, OP_OFFLOAD_STATUS); + if (status) + return status; + p = xdr_inline_decode(xdr, 8 + 4); + if (unlikely(!p)) + goto out_overflow; + p = xdr_decode_hyper(p, &res->osr_count); + count = be32_to_cpup(p++); + if (count) { + p = xdr_inline_decode(xdr, 4); + res->osr_status = be32_to_cpup(p); + } + return 0; +out_overflow: + print_overflow_msg(__func__, xdr); + return -EIO; +} + static int decode_deallocate(struct xdr_stream *xdr, struct nfs42_falloc_res *res) { return decode_op_hdr(xdr, OP_DEALLOCATE); @@ -687,6 +749,31 @@ static int nfs4_xdr_dec_copy_notify(struct rpc_rqst *rqstp, } /* + * Decode OFFLOAD_STATUS response + */ +static int nfs4_xdr_dec_offload_status(struct rpc_rqst *rqstp, + struct xdr_stream *xdr, + struct nfs42_offload_status_res *res) +{ + struct compound_hdr hdr; + int status; + + status = decode_compound_hdr(xdr, &hdr); + if (status) + goto out; + status = decode_sequence(xdr, &res->osr_seq_res, rqstp); + if (status) + goto out; + status = decode_putfh(xdr); + if (status) + goto out; + status = decode_offload_status(xdr, res); + +out: + return status; +} + +/* * Decode DEALLOCATE request */ static int nfs4_xdr_dec_deallocate(struct rpc_rqst *rqstp, diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 4633b26..9071652 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -9245,6 +9245,7 @@ static bool nfs4_match_stateid(const nfs4_stateid *s1, | NFS_CAP_ALLOCATE | NFS_CAP_COPY | NFS_CAP_COPY_NOTIFY + | NFS_CAP_OFFLOAD_STATUS | NFS_CAP_DEALLOCATE | NFS_CAP_SEEK | NFS_CAP_LAYOUTSTATS diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 9def5c6..a01ff49 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -7574,6 +7574,7 @@ struct rpc_procinfo nfs4_procedures[] = { PROC(CLONE, enc_clone, dec_clone), PROC(COPY, enc_copy, dec_copy), PROC(COPY_NOTIFY, enc_copy_notify, dec_copy_notify), + PROC(OFFLOAD_STATUS, enc_offload_status, dec_offload_status), #endif /* CONFIG_NFS_V4_2 */ }; diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h index e4be278..0ed1026 100644 --- a/include/linux/nfs4.h +++ b/include/linux/nfs4.h @@ -525,6 +525,7 @@ enum { NFSPROC4_CLNT_CLONE, NFSPROC4_CLNT_COPY, NFSPROC4_CLNT_COPY_NOTIFY, + NFSPROC4_CLNT_OFFLOAD_STATUS, }; /* nfs41 types */ diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index a538b69..4bc9a13 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -251,5 +251,6 @@ struct nfs_server { #define NFS_CAP_CLONE (1U << 23) #define NFS_CAP_COPY (1U << 24) #define NFS_CAP_COPY_NOTIFY (1U << 25) +#define NFS_CAP_OFFLOAD_STATUS (1U << 26) #endif diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 9d4ea77..65b4323 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -1405,6 +1405,18 @@ struct nfs42_copy_notify_res { struct nl4_servers cnr_src; }; +struct nfs42_offload_status_args { + struct nfs4_sequence_args osa_seq_args; + struct nfs_fh *osa_src_fh; + nfs4_stateid osa_stateid; +}; + +struct nfs42_offload_status_res { + struct nfs4_sequence_res osr_seq_res; + uint64_t osr_count; + int osr_status; +}; + struct nfs42_seek_args { struct nfs4_sequence_args seq_args;