From nobody Wed Dec 17 17:27:32 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F63FC61D97 for ; Fri, 24 Nov 2023 14:42:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345375AbjKXOm2 (ORCPT ); Fri, 24 Nov 2023 09:42:28 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231192AbjKXOmW (ORCPT ); Fri, 24 Nov 2023 09:42:22 -0500 Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BEAA31718; Fri, 24 Nov 2023 06:42:27 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R161e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046056;MF=guwen@linux.alibaba.com;NM=1;PH=DS;RN=21;SR=0;TI=SMTPD_---0Vx1p5Va_1700836942; Received: from localhost(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0Vx1p5Va_1700836942) by smtp.aliyun-inc.com; Fri, 24 Nov 2023 22:42:24 +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 3/7] net/smc: introduce virtual ISM device support feature Date: Fri, 24 Nov 2023 22:42:11 +0800 Message-Id: <1700836935-23819-4-git-send-email-guwen@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1700836935-23819-1-git-send-email-guwen@linux.alibaba.com> References: <1700836935-23819-1-git-send-email-guwen@linux.alibaba.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This introduces virtual ISM device support feature to SMCv2.1 as the first supplemental feature. Signed-off-by: Wen Gu --- net/smc/af_smc.c | 2 ++ net/smc/smc.h | 9 ++++++--- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index c61666e..766a1f1 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1520,6 +1520,7 @@ static int __smc_connect(struct smc_sock *smc) ini->smcr_version =3D SMC_V1 | SMC_V2; ini->smc_type_v1 =3D SMC_TYPE_B; ini->smc_type_v2 =3D SMC_TYPE_B; + ini->feature_mask =3D SMC_FEATURE_MASK; =20 /* get vlan id from IP device */ if (smc_vlan_by_tcpsk(smc->clcsock, ini)) { @@ -1985,6 +1986,7 @@ static int smc_listen_v2_check(struct smc_sock *new_s= mc, ini->smc_type_v2 =3D pclc->hdr.typev2; ini->smcd_version =3D smcd_indicated(ini->smc_type_v1) ? SMC_V1 : 0; ini->smcr_version =3D smcr_indicated(ini->smc_type_v1) ? SMC_V1 : 0; + ini->feature_mask =3D SMC_FEATURE_MASK; if (pclc->hdr.version > SMC_V1) { if (smcd_indicated(ini->smc_type_v2)) ini->smcd_version |=3D SMC_V2; diff --git a/net/smc/smc.h b/net/smc/smc.h index 903b151..9929d1e 100644 --- a/net/smc/smc.h +++ b/net/smc/smc.h @@ -58,9 +58,12 @@ enum smc_state { /* possible states of an SMC socket */ SMC_PROCESSABORT =3D 27, }; =20 -#define SMC_FEATURE_MASK 0 /* bitmask of - * supported supplemental features - */ +enum smc_supplemental_features { + SMC_SPF_VIRT_ISM_DEV =3D 0, +}; + +#define SMC_FEATURE_MASK \ + (BIT(SMC_SPF_VIRT_ISM_DEV)) =20 struct smc_link_group; =20 --=20 1.8.3.1