From: Martin Spinler <[email protected]> Enable configuration of the MTU on the Rx MAC assigned to the port.
Signed-off-by: Martin Spinler <[email protected]> --- drivers/net/nfb/nfb_ethdev.c | 39 ++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/net/nfb/nfb_ethdev.c b/drivers/net/nfb/nfb_ethdev.c index b927d006e7..b4bd98e08c 100644 --- a/drivers/net/nfb/nfb_ethdev.c +++ b/drivers/net/nfb/nfb_ethdev.c @@ -49,6 +49,7 @@ static struct nfb_pmd_internals_head nfb_eth_dev_list = TAILQ_HEAD_INITIALIZER(nfb_eth_dev_list); static int nfb_eth_dev_uninit(struct rte_eth_dev *dev); +static int nfb_eth_mtu_set(struct rte_eth_dev *dev, uint16_t mtu); static int nfb_mdio_read(void *priv, int prtad, int devad, uint16_t addr) @@ -255,6 +256,10 @@ nfb_eth_dev_configure(struct rte_eth_dev *dev __rte_unused) int ret; struct rte_eth_conf *dev_conf = &dev->data->dev_conf; + ret = nfb_eth_mtu_set(dev, dev_conf->rxmode.mtu); + if (ret) + goto err_mtu_set; + if (dev_conf->rxmode.offloads & RTE_ETH_RX_OFFLOAD_TIMESTAMP) { ret = rte_mbuf_dyn_rx_timestamp_register (&nfb_timestamp_dynfield_offset, @@ -269,6 +274,7 @@ nfb_eth_dev_configure(struct rte_eth_dev *dev __rte_unused) return 0; err_ts_register: +err_mtu_set: nfb_eth_dev_uninit(dev); return ret; } @@ -549,6 +555,38 @@ nfb_eth_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index) nc_rxmac_set_mac(internals->rxmac[i], index, 0, 0); } +static int +nfb_eth_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) +{ + unsigned int i; + struct nc_rxmac_status status; + struct pmd_internals *intl = dev->process_private; + uint16_t frame_length_max_capable; + + mtu += RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN; + + if (!intl->max_rxmac) + return 0; + + status.frame_length_max_capable = 0; + nc_rxmac_read_status(intl->rxmac[0], &status); + frame_length_max_capable = status.frame_length_max_capable; + + for (i = 1; i < intl->max_rxmac; ++i) { + nc_rxmac_read_status(intl->rxmac[i], &status); + if (frame_length_max_capable > status.frame_length_max_capable) + frame_length_max_capable = status.frame_length_max_capable; + } + + if (frame_length_max_capable < mtu && frame_length_max_capable != 0) + return -EINVAL; + + for (i = 0; i < intl->max_rxmac; ++i) + nc_rxmac_set_frame_length(intl->rxmac[i], mtu, RXMAC_FRAME_LENGTH_MAX); + + return 0; +} + static int nfb_eth_fw_version_get(struct rte_eth_dev *dev, char *fw_version, size_t fw_size) @@ -661,6 +699,7 @@ static const struct eth_dev_ops ops = { .mac_addr_set = nfb_eth_mac_addr_set, .mac_addr_add = nfb_eth_mac_addr_add, .mac_addr_remove = nfb_eth_mac_addr_remove, + .mtu_set = nfb_eth_mtu_set, .fw_version_get = nfb_eth_fw_version_get, .fec_get = nfb_eth_fec_get, .fec_set = nfb_eth_fec_set, -- 2.53.0
