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Message-ID: <20240712175520.7013-9-gakula@marvell.com>
Date: Fri, 12 Jul 2024 23:25:17 +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 v9 08/11] 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 cdd1f1321318..955ea941a53b 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
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