netdev - [PATCH net-next v4 13/18] net/smc: register loopback device as SMC-Dv2 device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1695568613-125057-14-git-send-email-guwen@linux.alibaba.com>
Date: Sun, 24 Sep 2023 23:16:48 +0800
From: Wen Gu <guwen@...ux.alibaba.com>
To: kgraul@...ux.ibm.com,
	wenjia@...ux.ibm.com,
	jaka@...ux.ibm.com,
	davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com
Cc: wintera@...ux.ibm.com,
	schnelle@...ux.ibm.com,
	gbayer@...ux.ibm.com,
	pasic@...ux.ibm.com,
	alibuda@...ux.alibaba.com,
	tonylu@...ux.alibaba.com,
	dust.li@...ux.alibaba.com,
	guwen@...ux.alibaba.com,
	linux-s390@...r.kernel.org,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH net-next v4 13/18] net/smc: register loopback device as SMC-Dv2 device

After loopback device gets ready, add it to the smcd_dev list as an
SMC-Dv2 device for use by SMC-D protocol.

Signed-off-by: Wen Gu <guwen@...ux.alibaba.com>
---
 net/smc/smc_loopback.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/net/smc/smc_loopback.c b/net/smc/smc_loopback.c
index eb13291..8375575 100644
--- a/net/smc/smc_loopback.c
+++ b/net/smc/smc_loopback.c
@@ -304,18 +304,27 @@ static int smcd_lo_register_dev(struct smc_lo_dev *ldev)
 
 	ldev->smcd = smcd;
 	smcd->priv = ldev;
-
-	/* TODO:
-	 * register smc_lo to smcd_dev list.
-	 */
+	mutex_lock(&smcd_dev_list.mutex);
+	smc_ism_check_v2_capable(smcd);
+	list_add(&smcd->list, &smcd_dev_list.list);
+	mutex_unlock(&smcd_dev_list.mutex);
+	pr_warn_ratelimited("smc: adding smcd device %s with pnetid %.16s%s\n",
+			    smc_lo_dev_name, smcd->pnetid,
+			    smcd->pnetid_by_user ? " (user defined)" : "");
 	return 0;
 }
 
 static void smcd_lo_unregister_dev(struct smc_lo_dev *ldev)
 {
-	/* TODO:
-	 * unregister smc_lo from smcd_dev list.
-	 */
+	struct smcd_dev *smcd = ldev->smcd;
+
+	pr_warn_ratelimited("smc: removing smcd device %s\n",
+			    smc_lo_dev_name);
+	smcd->going_away = 1;
+	smc_smcd_terminate_all(smcd);
+	mutex_lock(&smcd_dev_list.mutex);
+	list_del_init(&smcd->list);
+	mutex_unlock(&smcd_dev_list.mutex);
 }
 
 static void smc_lo_dev_release(struct device *dev)
-- 
1.8.3.1