From nobody Mon Feb 9 23:38:06 2026 Received: from out30-97.freemail.mail.aliyun.com (out30-97.freemail.mail.aliyun.com [115.124.30.97]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A727171D2; Sun, 17 Mar 2024 10:11:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.97 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710670287; cv=none; b=Gf21uISP7MrR8PBZWvem6fyLuK2TASxE5SAfTsdSAY+N6h/MAA7vMaqWwLPzEWVOFutOV7iVYLM6mRyMrpINhuOKSvnIWQ26pqUxoJdXloEyZK67yaX2rufcabfm12IwiWIpc90thJlG0Ds6Hv77ytxu3hZXypPtDjBiTOv45yY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710670287; c=relaxed/simple; bh=g9IG9LWG35A+t8FwKW3AkAH9VEEzV7uVdBSBXihzD5o=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=XsvRCFiTrvuJZ2vZZiFqceJiik4Mi6/oQbZrHNk+A+nIyly7KXzo4gWiuPhaETZ+lRJrscl1yHPh4uLz3YzdTcjc2NXE50youPCMhcPyifc7FwfgGIqWHf0loG8rBzXn4q1VPhK4mknmPkLWZIvPKbANw0VMjUK7+x3Uy6saZeo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=kbJghznE; arc=none smtp.client-ip=115.124.30.97 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="kbJghznE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1710670283; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=DBVOZ3xMT0UkBgzKW6yvfqPRI0PzpTLaAqw59qe7pQ8=; b=kbJghznExkheMMNL46jfAaeWK06vIAxa+9F84Kf7r9nc+5M622qlPKsLurmAd0k+Uo/S2lff4ZACtJS3BtOyZ+ypAixaTyQuSxgKVCDvRDiXsaPmhBAMz+Te+d04cZ6muYWiP8lwomo79xpaeDj4RiRTBHuYZgRd23ay3wWG2wI= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R151e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045168;MF=guwen@linux.alibaba.com;NM=1;PH=DS;RN=19;SR=0;TI=SMTPD_---0W2cE0wi_1710669960; Received: from localhost(mailfrom:guwen@linux.alibaba.com fp:SMTPD_---0W2cE0wi_1710669960) by smtp.aliyun-inc.com; Sun, 17 Mar 2024 18:06:02 +0800 From: Wen Gu To: wintera@linux.ibm.com, twinkler@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, wenjia@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, linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org, netdev@vger.kernel.org Subject: [RFC PATCH net-next v4 07/11] net/smc: register loopback-ism into SMC-D device list Date: Sun, 17 Mar 2024 18:05:41 +0800 Message-Id: <20240317100545.96663-8-guwen@linux.alibaba.com> X-Mailer: git-send-email 2.32.0.3.g01195cf9f In-Reply-To: <20240317100545.96663-1-guwen@linux.alibaba.com> References: <20240317100545.96663-1-guwen@linux.alibaba.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" After loopback-ism device gets ready, add it to the SMC-D device list as an ISMv2 device. Signed-off-by: Wen Gu --- net/smc/smc_ism.c | 11 +++++++---- net/smc/smc_ism.h | 1 + net/smc/smc_loopback.c | 20 +++++++++++++------- 3 files changed, 21 insertions(+), 11 deletions(-) diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c index 97f6ae4f9b23..38469ff53346 100644 --- a/net/smc/smc_ism.c +++ b/net/smc/smc_ism.c @@ -91,6 +91,11 @@ bool smc_ism_is_v2_capable(void) return smc_ism_v2_capable; } =20 +void smc_ism_set_v2_capable(void) +{ + smc_ism_v2_capable =3D true; +} + /* Set a connection using this DMBE. */ void smc_ism_set_conn(struct smc_connection *conn) { @@ -449,11 +454,9 @@ static void smcd_register_dev(struct ism_dev *ism) if (smc_pnetid_by_dev_port(&ism->pdev->dev, 0, smcd->pnetid)) smc_pnetid_by_table_smcd(smcd); =20 + if (smcd->ops->supports_v2()) + smc_ism_set_v2_capable(); mutex_lock(&smcd_dev_list.mutex); - if (list_empty(&smcd_dev_list.list)) { - if (smcd->ops->supports_v2()) - smc_ism_v2_capable =3D true; - } /* sort list: devices without pnetid before devices with pnetid */ if (smcd->pnetid[0]) list_add_tail(&smcd->list, &smcd_dev_list.list); diff --git a/net/smc/smc_ism.h b/net/smc/smc_ism.h index 322973527c61..e6f57e5e1ef9 100644 --- a/net/smc/smc_ism.h +++ b/net/smc/smc_ism.h @@ -52,6 +52,7 @@ int smc_ism_signal_shutdown(struct smc_link_group *lgr); void smc_ism_get_system_eid(u8 **eid); u16 smc_ism_get_chid(struct smcd_dev *dev); bool smc_ism_is_v2_capable(void); +void smc_ism_set_v2_capable(void); int smc_ism_init(void); void smc_ism_exit(void); int smcd_nl_get_device(struct sk_buff *skb, struct netlink_callback *cb); diff --git a/net/smc/smc_loopback.c b/net/smc/smc_loopback.c index 7335acb03920..c3e1133da8d7 100644 --- a/net/smc/smc_loopback.c +++ b/net/smc/smc_loopback.c @@ -275,10 +275,12 @@ static int smcd_lo_register_dev(struct smc_lo_dev *ld= ev) return -ENOMEM; ldev->smcd =3D smcd; smcd->priv =3D ldev; - - /* TODO: - * register loopback-ism to smcd_dev list. - */ + smc_ism_set_v2_capable(); + mutex_lock(&smcd_dev_list.mutex); + list_add(&smcd->list, &smcd_dev_list.list); + mutex_unlock(&smcd_dev_list.mutex); + pr_warn_ratelimited("smc: adding smcd device %s\n", + smc_lo_dev_name); return 0; } =20 @@ -286,9 +288,13 @@ static void smcd_lo_unregister_dev(struct smc_lo_dev *= ldev) { struct smcd_dev *smcd =3D ldev->smcd; =20 - /* TODO: - * unregister loopback-ism from smcd_dev list. - */ + pr_warn_ratelimited("smc: removing smcd device %s\n", + smc_lo_dev_name); + smcd->going_away =3D 1; + smc_smcd_terminate_all(smcd); + mutex_lock(&smcd_dev_list.mutex); + list_del_init(&smcd->list); + mutex_unlock(&smcd_dev_list.mutex); kfree(smcd->conn); kfree(smcd); } --=20 2.32.0.3.g01195cf9f