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net/thunderx: support MTU configuration

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Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Maciej Czekaj <maciej.czekaj@caviumnetworks.com>
Signed-off-by: Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
Signed-off-by: Zyta Szpak <zyta.szpak@semihalf.com>
Signed-off-by: Slawomir Rosek <slawomir.rosek@semihalf.com>
Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
This commit is contained in:
Jerin Jacob 2016-06-17 18:59:43 +05:30 committed by Bruce Richardson
parent 43362c6a76
commit 65d9804edc
2 changed files with 46 additions and 0 deletions
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44
drivers/net/thunderx/nicvf_ethdev.c
View File

@ -143,6 +143,49 @@ nicvf_dev_link_update(struct rte_eth_dev *dev,
return nicvf_atomic_write_link_status(dev, &link);
}
static int
nicvf_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
{
struct nicvf *nic = nicvf_pmd_priv(dev);
uint32_t buffsz, frame_size = mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
PMD_INIT_FUNC_TRACE();
if (frame_size > NIC_HW_MAX_FRS)
return -EINVAL;
if (frame_size < NIC_HW_MIN_FRS)
return -EINVAL;
buffsz = dev->data->min_rx_buf_size - RTE_PKTMBUF_HEADROOM;
/*
* Refuse mtu that requires the support of scattered packets
* when this feature has not been enabled before.
*/
if (!dev->data->scattered_rx &&
(frame_size + 2 * VLAN_TAG_SIZE > buffsz))
return -EINVAL;
/* check <seg size> * <max_seg> >= max_frame */
if (dev->data->scattered_rx &&
(frame_size + 2 * VLAN_TAG_SIZE > buffsz * NIC_HW_MAX_SEGS))
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;
if (nicvf_mbox_update_hw_max_frs(nic, frame_size))
return -EINVAL;
/* Update max frame size */
dev->data->dev_conf.rxmode.max_rx_pkt_len = (uint32_t)frame_size;
nic->mtu = mtu;
return 0;
}
static int
nicvf_dev_get_reg_length(struct rte_eth_dev *dev __rte_unused)
{
@ -769,6 +812,7 @@ static const struct eth_dev_ops nicvf_eth_dev_ops = {
.dev_configure = nicvf_dev_configure,
.link_update = nicvf_dev_link_update,
.dev_infos_get = nicvf_dev_info_get,
.mtu_set = nicvf_dev_set_mtu,
.reta_update = nicvf_dev_reta_update,
.reta_query = nicvf_dev_reta_query,
.rss_hash_update = nicvf_dev_rss_hash_update,

2
drivers/net/thunderx/nicvf_ethdev.h
View File

@ -62,6 +62,8 @@
#define NICVF_MAX_RX_FREE_THRESH 1024
#define NICVF_MAX_TX_FREE_THRESH 1024
#define VLAN_TAG_SIZE 4 /* 802.3ac tag */
static inline struct nicvf *
nicvf_pmd_priv(struct rte_eth_dev *eth_dev)
{