[dpdk-dev] [PATCH v4 21/32] net/ice: support MTU setting
Wenzhuo Lu
wenzhuo.lu at intel.com
Fri Dec 14 09:35:07 CET 2018
Add ops mtu_set.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
Signed-off-by: Qiming Yang <qiming.yang at intel.com>
Signed-off-by: Xiaoyun Li <xiaoyun.li at intel.com>
Signed-off-by: Jingjing Wu <jingjing.wu at intel.com>
---
doc/guides/nics/features/ice.ini | 2 ++
drivers/net/ice/ice_ethdev.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/doc/guides/nics/features/ice.ini b/doc/guides/nics/features/ice.ini
index eb852ff..fab6442 100644
--- a/doc/guides/nics/features/ice.ini
+++ b/doc/guides/nics/features/ice.ini
@@ -8,6 +8,8 @@ Speed capabilities = Y
Link status = Y
Link status event = Y
Queue start/stop = Y
+MTU update = Y
+Jumbo frame = Y
BSD nic_uio = Y
Linux UIO = Y
Linux VFIO = Y
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 4621eb6..9cf843d 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
@@ -1228,6 +1230,38 @@ static int ice_init_rss(struct ice_pf *pf)
}
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;
+
+ /* 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;
+}
+
+static int
ice_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
struct rte_pci_device *pci_dev)
{
--
1.9.3
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