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From: Xiaoyun Li <xiaoyun.li@intel.com>
To: junfeng.guo@intel.com, qi.z.zhang@intel.com, awogbemila@google.com,
bruce.richardson@intel.com
Cc: dev@dpdk.org,
Xiaoyun Li <xiaoyun.li@intel.com>
Subject: [PATCH 05/10] net/gve: add MTU set support
Date: Fri, 29 Jul 2022 19:30:37 +0000
Message-Id: <20220729193042.2764633-6-xiaoyun.li@intel.com>
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Support dev_ops mtu_set.
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
---
drivers/net/gve/gve_ethdev.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/net/gve/gve_ethdev.c b/drivers/net/gve/gve_ethdev.c
index 435115c047..26b45fde6f 100644
--- a/drivers/net/gve/gve_ethdev.c
+++ b/drivers/net/gve/gve_ethdev.c
@@ -97,12 +97,41 @@ 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
--
2.25.1