netdev - [net-next PATCH v7 08/10] octeontx2-pf: Configure VF mtu via representor

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: <20240628133517.8591-9-gakula@marvell.com>
Date: Fri, 28 Jun 2024 19:05:15 +0530
From: Geetha sowjanya <gakula@...vell.com>
To: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <kuba@...nel.org>, <davem@...emloft.net>, <pabeni@...hat.com>,
        <edumazet@...gle.com>, <sgoutham@...vell.com>, <gakula@...vell.com>,
        <sbhatta@...vell.com>, <hkelam@...vell.com>
Subject: [net-next PATCH v7 08/10] octeontx2-pf: Configure VF mtu via representor

Adds support to manage the mtu configuration for VF through representor.
On update of representor mtu a mbox notification is send
to VF to update its mtu.

Signed-off-by: Sai Krishna <saikrishnag@...vell.com>
Signed-off-by: Geetha sowjanya <gakula@...vell.com>
Reviewed-by: Simon Horman <horms@...nel.org>
---
 .../ethernet/marvell/octeontx2/nic/otx2_pf.c    |  5 +++++
 .../net/ethernet/marvell/octeontx2/nic/rep.c    | 17 +++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index b9144cd3f474..56371fb90c8f 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -854,6 +854,11 @@ static int otx2_mbox_up_handler_rep_event_up_notify(struct otx2_nic *pf,
 {
 	struct net_device *netdev = pf->netdev;
 
+	if (info->event == RVU_EVENT_MTU_CHANGE) {
+		netdev->mtu = info->evt_data.mtu;
+		return 0;
+	}
+
 	if (info->event == RVU_EVENT_PORT_STATE) {
 		if (info->evt_data.port_state) {
 			pf->flags |= OTX2_FLAG_PORT_UP;
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/rep.c b/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
index aedcff57d96f..c37cbf440235 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/rep.c
@@ -79,6 +79,22 @@ int rvu_event_up_notify(struct otx2_nic *pf, struct rep_event *info)
 	return 0;
 }
 
+static int rvu_rep_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct rep_dev *rep = netdev_priv(dev);
+	struct otx2_nic *priv = rep->mdev;
+	struct rep_event evt = {0};
+
+	netdev_info(dev, "Changing MTU from %d to %d\n",
+		    dev->mtu, new_mtu);
+	dev->mtu = new_mtu;
+
+	evt.evt_data.mtu = new_mtu;
+	evt.pcifunc = rep->pcifunc;
+	rvu_rep_notify_pfvf(priv, RVU_EVENT_MTU_CHANGE, &evt);
+	return 0;
+}
+
 static void rvu_rep_get_stats(struct work_struct *work)
 {
 	struct delayed_work *del_work = to_delayed_work(work);
@@ -226,6 +242,7 @@ static const struct net_device_ops rvu_rep_netdev_ops = {
 	.ndo_stop		= rvu_rep_stop,
 	.ndo_start_xmit		= rvu_rep_xmit,
 	.ndo_get_stats64	= rvu_rep_get_stats64,
+	.ndo_change_mtu		= rvu_rep_change_mtu,
 };
 
 static int rvu_rep_napi_init(struct otx2_nic *priv,
-- 
2.25.1