On Wed, Jun 06, 2018 at 02:31:26PM +0200, Maxime Coquelin wrote:
[...]
> @@ -1886,6 +1888,15 @@ virtio_dev_configure(struct rte_eth_dev *dev)
> (1ULL << VIRTIO_NET_F_GUEST_TSO4) |
> (1ULL << VIRTIO_NET_F_GUEST_TSO6);
>
> + if (tx_offloads & (DEV_TX_OFFLOAD_TCP_CKSUM |
> + DEV_TX_OFFLOAD_UDP_CKSUM))
> + req_features |= (1ULL << VIRTIO_NET_F_CSUM);
Hmm.. I still prefer to keep the DEV_TX_OFFLOAD_TCP_CKSUM
and DEV_TX_OFFLOAD_UDP_CKSUM aligned to make the coding
style consistent with the existing code of Rx:
1901 ¦ if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |
1902 ¦ ¦ ¦ DEV_RX_OFFLOAD_TCP_CKSUM))
1903 ¦ ¦ req_features |= (1ULL << VIRTIO_NET_F_GUEST_CSUM);
But it's up to you.
> +
> + if (tx_offloads & DEV_TX_OFFLOAD_TCP_TSO)
> + req_features |=
> + (1ULL << VIRTIO_NET_F_HOST_TSO4) |
> + (1ULL << VIRTIO_NET_F_HOST_TSO6);
> +
> /* if request features changed, reinit the device */
> if (req_features != hw->req_guest_features) {
> ret = virtio_init_device(dev, req_features);
> @@ -1955,6 +1966,12 @@ virtio_dev_configure(struct rte_eth_dev *dev)
> DEV_RX_OFFLOAD_TCP_CKSUM))
> hw->use_simple_rx = 0;
>
> + if (tx_offloads & (DEV_TX_OFFLOAD_TCP_CKSUM |
> + DEV_TX_OFFLOAD_UDP_CKSUM |
> + DEV_TX_OFFLOAD_TCP_TSO |
> + DEV_TX_OFFLOAD_VLAN_INSERT))
> + hw->use_simple_tx = 0;
Ditto. Below is the code for Rx:
1987 ¦ if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |
1988 ¦ ¦ ¦ DEV_RX_OFFLOAD_TCP_CKSUM |
1989 ¦ ¦ ¦ DEV_RX_OFFLOAD_TCP_LRO |
1990 ¦ ¦ ¦ DEV_RX_OFFLOAD_VLAN_STRIP))
1991 ¦ ¦ hw->use_simple_rx = 0;
So, instead of:
1987 ¦ if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |
1988 ¦ ¦ ¦ DEV_RX_OFFLOAD_TCP_CKSUM |
1989 ¦ ¦ ¦ DEV_RX_OFFLOAD_TCP_LRO |
1990 ¦ ¦ ¦ DEV_RX_OFFLOAD_VLAN_STRIP))
1991 ¦ ¦ hw->use_simple_rx = 0;
1992
1993 ¦ if (tx_offloads & (DEV_TX_OFFLOAD_TCP_CKSUM |
1994 ¦ ¦ ¦ ¦ DEV_TX_OFFLOAD_UDP_CKSUM |
1995 ¦ ¦ ¦ ¦ DEV_TX_OFFLOAD_TCP_TSO |
1996 ¦ ¦ ¦ ¦ DEV_TX_OFFLOAD_VLAN_INSERT))
1997 ¦ ¦ hw->use_simple_tx = 0;
I would prefer:
1987 ¦ if (rx_offloads & (DEV_RX_OFFLOAD_UDP_CKSUM |
1988 ¦ ¦ ¦ DEV_RX_OFFLOAD_TCP_CKSUM |
1989 ¦ ¦ ¦ DEV_RX_OFFLOAD_TCP_LRO |
1990 ¦ ¦ ¦ DEV_RX_OFFLOAD_VLAN_STRIP))
1991 ¦ ¦ hw->use_simple_rx = 0;
1992
1993 ¦ if (tx_offloads & (DEV_TX_OFFLOAD_UDP_CKSUM |
1994 ¦ ¦ ¦ DEV_TX_OFFLOAD_TCP_CKSUM |
1995 ¦ ¦ ¦ DEV_TX_OFFLOAD_TCP_TSO |
1996 ¦ ¦ ¦ DEV_TX_OFFLOAD_VLAN_INSERT))
1997 ¦ ¦ hw->use_simple_tx = 0;
But anyway, it's up to you. :)
Reviewed-by: Tiwei Bie <tiwei....@intel.com>
Best regards,
Tiwei Bie
