From patchwork Thu Nov 30 11:28:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wen Gu X-Patchwork-Id: 13474253 X-Patchwork-Delegate: kuba@kernel.org Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from out30-112.freemail.mail.aliyun.com (out30-112.freemail.mail.aliyun.com [115.124.30.112]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9C5E210F3; Thu, 30 Nov 2023 03:28:32 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R581e4;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_---0VxROQ-o_1701343707; Received: from localhost(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0VxROQ-o_1701343707) by smtp.aliyun-inc.com; Thu, 30 Nov 2023 19:28:29 +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 v3 3/7] net/smc: introduce virtual ISM device support feature Date: Thu, 30 Nov 2023 19:28:11 +0800 Message-Id: <1701343695-122657-4-git-send-email-guwen@linux.alibaba.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1701343695-122657-1-git-send-email-guwen@linux.alibaba.com> References: <1701343695-122657-1-git-send-email-guwen@linux.alibaba.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: X-Patchwork-Delegate: kuba@kernel.org 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 = SMC_V1 | SMC_V2; ini->smc_type_v1 = SMC_TYPE_B; ini->smc_type_v2 = SMC_TYPE_B; + ini->feature_mask = SMC_FEATURE_MASK; /* 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_smc, ini->smc_type_v2 = pclc->hdr.typev2; ini->smcd_version = smcd_indicated(ini->smc_type_v1) ? SMC_V1 : 0; ini->smcr_version = smcr_indicated(ini->smc_type_v1) ? SMC_V1 : 0; + ini->feature_mask = SMC_FEATURE_MASK; if (pclc->hdr.version > SMC_V1) { if (smcd_indicated(ini->smc_type_v2)) ini->smcd_version |= SMC_V2; diff --git a/net/smc/smc.h b/net/smc/smc.h index 95f56c7..0dc722b 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 = 27, }; -#define SMC_FEATURE_MASK 0 /* bitmask of - * supported supplemental features - */ +enum smc_supplemental_features { + SMC_SPF_VIRT_ISM_DEV = 0, +}; + +#define SMC_FEATURE_MASK \ + (BIT(SMC_SPF_VIRT_ISM_DEV)) struct smc_link_group;