From patchwork Fri Nov 24 14:42:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wen Gu X-Patchwork-Id: 13467737 Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from out30-110.freemail.mail.aliyun.com (out30-110.freemail.mail.aliyun.com [115.124.30.110]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6EAA19AE; Fri, 24 Nov 2023 06:42:20 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R941e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045192;MF=guwen@linux.alibaba.com;NM=1;PH=DS;RN=21;SR=0;TI=SMTPD_---0Vx1p5U7_1700836935; Received: from localhost(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0Vx1p5U7_1700836935) by smtp.aliyun-inc.com; Fri, 24 Nov 2023 22:42:17 +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, linux-s390@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 0/7] net/smc: implement SMCv2.1 virtual ISM device support Date: Fri, 24 Nov 2023 22:42:08 +0800 Message-Id: <1700836935-23819-1-git-send-email-guwen@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: X-Patchwork-Delegate: kuba@kernel.org 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/ v2->v1: - Fix sparse complaint; - Rebase to the latest net-next; Wen Gu (7): net/smc: Rename some variable 'fce' to 'fce_v2x' for clarity 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 extend GID of virtual ISM device 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 | 6 --- drivers/s390/net/ism_drv.c | 54 +++++++-------------------- include/linux/ism.h | 1 - include/net/smc.h | 16 +++++--- net/smc/af_smc.c | 68 ++++++++++++++++++++++++++------- net/smc/smc.h | 7 ++++ net/smc/smc_clc.c | 93 ++++++++++++++++++++++++++++++++-------------- net/smc/smc_clc.h | 22 +++++++---- net/smc/smc_core.c | 32 ++++++++++------ net/smc/smc_core.h | 8 ++-- net/smc/smc_diag.c | 7 +++- net/smc/smc_ism.c | 57 ++++++++++++++++++++-------- net/smc/smc_ism.h | 31 +++++++++++++++- net/smc/smc_pnet.c | 4 +- 14 files changed, 270 insertions(+), 136 deletions(-)