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[23.128.96.32]) by mx.google.com with ESMTPS id e9-20020a17090301c900b001cfaeeb91a3si1135859plh.474.2023.12.07.23.41.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Dec 2023 23:41:19 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) client-ip=23.128.96.32; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.32 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by agentk.vger.email (Postfix) with ESMTP id BCA1880ECAC4; Thu, 7 Dec 2023 23:41:15 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at agentk.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1573288AbjLHHlC (ORCPT + 99 others); Fri, 8 Dec 2023 02:41:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60430 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1573289AbjLHHk5 (ORCPT ); Fri, 8 Dec 2023 02:40:57 -0500 Received: from out30-132.freemail.mail.aliyun.com (out30-132.freemail.mail.aliyun.com [115.124.30.132]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9364EDD; Thu, 7 Dec 2023 23:41:03 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R891e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046059;MF=guwen@linux.alibaba.com;NM=1;PH=DS;RN=22;SR=0;TI=SMTPD_---0Vy2PAfL_1702021259; Received: from localhost(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0Vy2PAfL_1702021259) by smtp.aliyun-inc.com; Fri, 08 Dec 2023 15:41:01 +0800 From: Wen Gu To: wintera@linux.ibm.com, wenjia@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, agordeev@linux.ibm.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, kgraul@linux.ibm.com, jaka@linux.ibm.com Cc: borntraeger@linux.ibm.com, svens@linux.ibm.com, alibuda@linux.alibaba.com, tonylu@linux.alibaba.com, guwen@linux.alibaba.com, raspl@linux.ibm.com, schnelle@linux.ibm.com, guangguan.wang@linux.alibaba.com, linux-s390@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v5 0/9] net/smc: implement SMCv2.1 virtual ISM device support Date: Fri, 8 Dec 2023 15:40:50 +0800 Message-Id: <1702021259-41504-1-git-send-email-guwen@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE, UNPARSEABLE_RELAY autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Thu, 07 Dec 2023 23:41:16 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784593525434398467 X-GMAIL-MSGID: 1784698664843766420 The fourth edition of SMCv2 adds the SMC version 2.1 feature updates for SMC-Dv2 with virtual ISM. Virtual ISM are created and supported mainly by OS or hypervisor software, comparable to IBM ISM which is based on platform firmware or hardware. With the introduction of virtual ISM, SMCv2.1 makes some updates: - Introduce feature bitmask to indicate supplemental features. - Reserve a range of CHIDs for virtual ISM. - Support extended GIDs (128 bits) in CLC handshake. So this patch set aims to implement these updates in Linux kernel. And it acts as the first part of SMC-D virtual ISM extension & loopback-ism [1]. [1] https://lore.kernel.org/netdev/1695568613-125057-1-git-send-email-guwen@linux.alibaba.com/ v5->v4: - Patch #6: improve the comment of SMCD_CLC_MAX_V2_GID_ENTRIES; - Patch #4: remove useless ini->feature_mask assignment; v4->v3: - Patch #6: use SMCD_CLC_MAX_V2_GID_ENTRIES to indicate the max gid entries in CLC proposal and using SMC_MAX_V2_ISM_DEVS to indicate the max devices to propose; - Patch #6: use i and i+1 in smc_find_ism_v2_device_serv(); - Patch #2: replace the large if-else block in smc_clc_send_confirm_accept() with 2 subfunctions; - Fix missing byte order conversion of GID and token in CLC handshake, which is in a separate patch sending to net: https://lore.kernel.org/netdev/1701882157-87956-1-git-send-email-guwen@linux.alibaba.com/ - Patch #7: add extended GID in SMC-D lgr netlink attribute; v3->v2: - Rename smc_clc_fill_fce as smc_clc_fill_fce_v2x; - Remove ISM_IDENT_MASK from drivers/s390/net/ism.h; - Add explicitly assigning 'false' to ism_v2_capable in ism_dev_init(); - Remove smc_ism_set_v2_capable() helper for now, and introduce it in later loopback-ism implementation; v2->v1: - Fix sparse complaint; - Rebase to the latest net-next; Wen Gu (9): net/smc: rename some 'fce' to 'fce_v2x' for clarity net/smc: introduce sub-functions for smc_clc_send_confirm_accept() net/smc: support SMCv2.x supplemental features negotiation net/smc: introduce virtual ISM device support feature net/smc: define a reserved CHID range for virtual ISM devices net/smc: compatible with 128-bits extended GID of virtual ISM device net/smc: support extended GID in SMC-D lgr netlink attribute net/smc: disable SEID on non-s390 archs where virtual ISM may be used net/smc: manage system EID in SMC stack instead of ISM driver drivers/s390/net/ism.h | 7 -- drivers/s390/net/ism_drv.c | 57 +++------ include/linux/ism.h | 1 - include/net/smc.h | 16 ++- include/uapi/linux/smc.h | 2 + include/uapi/linux/smc_diag.h | 2 + net/smc/af_smc.c | 66 ++++++++-- net/smc/smc.h | 10 +- net/smc/smc_clc.c | 278 +++++++++++++++++++++++++++--------------- net/smc/smc_clc.h | 26 ++-- net/smc/smc_core.c | 37 ++++-- net/smc/smc_core.h | 18 ++- net/smc/smc_diag.c | 9 +- net/smc/smc_ism.c | 50 +++++--- net/smc/smc_ism.h | 30 ++++- net/smc/smc_pnet.c | 4 +- 16 files changed, 400 insertions(+), 213 deletions(-)