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From: Rasesh Mody <rasesh.mody@qlogic.com>
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Subject: [dpdk-dev] [PATCH v2 5/9] qede: add support for setting the MTU
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From: Sony Chacko <sony.chacko@qlogic.com>
Add support for setting the MTU.
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
---
drivers/net/qede/qede_ethdev.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 3754454..af16277 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -885,6 +885,38 @@ int qede_rss_reta_query(struct rte_eth_dev *eth_dev,
return 0;
}
+int qede_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ uint32_t frame_size;
+ struct qede_dev *qdev = dev->data->dev_private;
+ struct rte_eth_dev_info dev_info = {0};
+
+ qede_dev_info_get(dev, &dev_info);
+
+ /* VLAN_TAG = 4 */
+ frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN + 4;
+
+ if ((mtu < ETHER_MIN_MTU) || (frame_size > dev_info.max_rx_pktlen))
+ return -EINVAL;
+
+ if (!dev->data->scattered_rx &&
+ frame_size > dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM)
+ return -EINVAL;
+
+ if (frame_size > ETHER_MAX_LEN)
+ dev->data->dev_conf.rxmode.jumbo_frame = 1;
+ else
+ dev->data->dev_conf.rxmode.jumbo_frame = 0;
+
+ /* update max frame size */
+ dev->data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+ qdev->mtu = mtu;
+ qede_dev_stop(dev);
+ qede_dev_start(dev);
+
+ return 0;
+}
+
static const struct eth_dev_ops qede_eth_dev_ops = {
.dev_configure = qede_dev_configure,
.dev_infos_get = qede_dev_info_get,
@@ -916,6 +948,7 @@ static const struct eth_dev_ops qede_eth_dev_ops = {
.rss_hash_conf_get = qede_rss_hash_conf_get,
.reta_update = qede_rss_reta_update,
.reta_query = qede_rss_reta_query,
+ .mtu_set = qede_set_mtu,
};
static const struct eth_dev_ops qede_eth_vf_dev_ops = {
@@ -944,6 +977,7 @@ static const struct eth_dev_ops qede_eth_vf_dev_ops = {
.rss_hash_conf_get = qede_rss_hash_conf_get,
.reta_update = qede_rss_reta_update,
.reta_query = qede_rss_reta_query,
+ .mtu_set = qede_set_mtu,
};
static void qede_update_pf_params(struct ecore_dev *edev)
--
1.7.10.3