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netdev-dpdk: Enable HW_CRC_STRIP for virtual functions.

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Virtual functions such as igb_vf and i40e_vf require HW_CRC_STRIP to be
explicitly enabled before configuration, otherwise device configuration
will fail.

This commit achieves this by adding NETDEV_RX_HW_CRC_STRIP to
dpdk_hw_ol_features. When a dpdk device is added, the driver for the
device is examined, if the device is a virtual function enable
HW_CRC_STRIP.

Signed-off-by: Michal Weglicki <michalx.weglicki@intel.com>
Co-Authored: Ian Stokes <ian.stokes@intel.com>
Acked-by: Cian Ferriter <cian.ferriter@intel.com>
Tested-by: Cian Ferriter <cian.ferriter@intel.com>
Signed-off-by: Ian Stokes <ian.stokes@intel.com>
This commit is contained in:
Michal Weglicki
2018-05-03 09:00:34 +01:00
committed by Ian Stokes
parent 7189d54c54
commit e10ca8b921
1 changed files with 13 additions and 0 deletions
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13
lib/netdev-dpdk.c
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@@ -341,6 +341,7 @@ struct ingress_policer {
enum dpdk_hw_ol_features {
NETDEV_RX_CHECKSUM_OFFLOAD = 1 << 0,
NETDEV_RX_HW_CRC_STRIP = 1 << 1,
};
/*
@@ -796,6 +797,11 @@ dpdk_eth_dev_port_config(struct netdev_dpdk *dev, int n_rxq, int n_txq)
conf.intr_conf.lsc = dev->lsc_interrupt_mode;
conf.rxmode.hw_ip_checksum = (dev->hw_ol_features &
NETDEV_RX_CHECKSUM_OFFLOAD) != 0;
if (dev->hw_ol_features & NETDEV_RX_HW_CRC_STRIP) {
conf.rxmode.hw_strip_crc = 1;
}
/* A device may report more queues than it makes available (this has
* been observed for Intel xl710, which reserves some of them for
* SRIOV): rte_eth_*_queue_setup will fail if a queue is not
@@ -885,6 +891,13 @@ dpdk_eth_dev_init(struct netdev_dpdk *dev)
rte_eth_dev_info_get(dev->port_id, &info);
if (strstr(info.driver_name, "vf") != NULL) {
VLOG_INFO("Virtual function detected, HW_CRC_STRIP will be enabled");
dev->hw_ol_features |= NETDEV_RX_HW_CRC_STRIP;
} else {
dev->hw_ol_features &= ~NETDEV_RX_HW_CRC_STRIP;
}
if ((info.rx_offload_capa & rx_chksm_offload_capa) !=
rx_chksm_offload_capa) {
VLOG_WARN("Rx checksum offload is not supported on port "