diff mbox series

[v3,5/9] net/gve: add MTU set support

Message ID 20220923093829.3019525-6-junfeng.guo@intel.com (mailing list archive)
State Superseded, archived
Delegated to: Ferruh Yigit
Headers
Series introduce GVE PMD |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Junfeng Guo Sept. 23, 2022, 9:38 a.m. UTC 
  Support dev_ops mtu_set.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Signed-off-by: Junfeng Guo <junfeng.guo@intel.com>
---
 doc/guides/nics/features/gve.ini |  1 +
 drivers/net/gve/gve_ethdev.c     | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
diff mbox series

Patch

diff --git a/doc/guides/nics/features/gve.ini b/doc/guides/nics/features/gve.ini
index d03e3ac89e..fbff0a5462 100644
--- a/doc/guides/nics/features/gve.ini
+++ b/doc/guides/nics/features/gve.ini
@@ -6,6 +6,7 @@ 
 [Features]
 Speed capabilities   = Y
 Link status          = Y
+MTU update           = Y
 Linux                = Y
 x86-32               = Y
 x86-64               = Y
diff --git a/drivers/net/gve/gve_ethdev.c b/drivers/net/gve/gve_ethdev.c
index 7eb93d7366..c510938832 100644
--- a/drivers/net/gve/gve_ethdev.c
+++ b/drivers/net/gve/gve_ethdev.c
@@ -94,12 +94,41 @@  gve_dev_close(struct rte_eth_dev *dev)
 	return err;
 }
 
+static int
+gve_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct gve_priv *priv = dev->data->dev_private;
+	int err;
+
+	if (mtu < RTE_ETHER_MIN_MTU || mtu > priv->max_mtu) {
+		PMD_DRV_LOG(ERR, "MIN MTU is %u MAX MTU is %u", RTE_ETHER_MIN_MTU, priv->max_mtu);
+		return -EINVAL;
+	}
+
+	/* mtu setting is forbidden if port is start */
+	if (dev->data->dev_started) {
+		PMD_DRV_LOG(ERR, "Port must be stopped before configuration");
+		return -EBUSY;
+	}
+
+	dev->data->dev_conf.rxmode.mtu = mtu + RTE_ETHER_HDR_LEN;
+
+	err = gve_adminq_set_mtu(priv, mtu);
+	if (err) {
+		PMD_DRV_LOG(ERR, "Failed to set mtu as %u err = %d", mtu, err);
+		return err;
+	}
+
+	return 0;
+}
+
 static const struct eth_dev_ops gve_eth_dev_ops = {
 	.dev_configure        = gve_dev_configure,
 	.dev_start            = gve_dev_start,
 	.dev_stop             = gve_dev_stop,
 	.dev_close            = gve_dev_close,
 	.link_update          = gve_link_update,
+	.mtu_set              = gve_dev_mtu_set,
 };
 
 static void