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From: Wenzhuo Lu <wenzhuo.lu@intel.com>
To: dev@dpdk.org
Cc: Wenzhuo Lu <wenzhuo.lu@intel.com>, Qiming Yang <qiming.yang@intel.com>,
Xiaoyun Li <xiaoyun.li@intel.com>, Jingjing Wu <jingjing.wu@intel.com>
Date: Mon, 3 Dec 2018 15:06:48 +0800
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Subject: [dpdk-dev] [PATCH v2 07/20] net/ice: support MTU setting
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Add ops link_update.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
---
drivers/net/ice/ice_ethdev.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 164dfd5..bf290ab 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -23,6 +23,7 @@ static void ice_dev_info_get(struct rte_eth_dev *dev,
struct rte_eth_dev_info *dev_info);
static int ice_link_update(struct rte_eth_dev *dev,
int wait_to_complete);
+static int ice_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
static const struct rte_pci_id pci_id_ice_map[] = {
{ RTE_PCI_DEVICE(ICE_INTEL_VENDOR_ID, ICE_DEV_ID_E810C_BACKPLANE) },
@@ -48,6 +49,7 @@ static int ice_link_update(struct rte_eth_dev *dev,
.dev_infos_get = ice_dev_info_get,
.dev_supported_ptypes_get = ice_dev_supported_ptypes_get,
.link_update = ice_link_update,
+ .mtu_set = ice_mtu_set,
};
static void
@@ -1302,3 +1304,37 @@ static int ice_init_rss(struct ice_pf *pf)
return 0;
}
+
+static int
+ice_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+ struct ice_pf *pf = ICE_DEV_PRIVATE_TO_PF(dev->data->dev_private);
+ struct rte_eth_dev_data *dev_data = pf->dev_data;
+ uint32_t frame_size = mtu + ETHER_HDR_LEN
+ + ETHER_CRC_LEN + ICE_VLAN_TAG_SIZE;
+
+ ICE_PROC_SECONDARY_CHECK;
+
+ /* check if mtu is within the allowed range */
+ if (mtu < ETHER_MIN_MTU || frame_size > ICE_FRAME_SIZE_MAX)
+ return -EINVAL;
+
+ /* mtu setting is forbidden if port is start */
+ if (dev_data->dev_started) {
+ PMD_DRV_LOG(ERR,
+ "port %d must be stopped before configuration",
+ dev_data->port_id);
+ return -EBUSY;
+ }
+
+ if (frame_size > ETHER_MAX_LEN)
+ dev_data->dev_conf.rxmode.offloads |=
+ DEV_RX_OFFLOAD_JUMBO_FRAME;
+ else
+ dev_data->dev_conf.rxmode.offloads &=
+ ~DEV_RX_OFFLOAD_JUMBO_FRAME;
+
+ dev_data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+
+ return 0;
+}
--
1.9.3