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netvsc: report rss field values

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Report current components used in RSS hash.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2017-01-24 13:06:01 -08:00 committed by David S. Miller
parent b448f4e892
commit b5a5dc8dc8
1 changed files with 27 additions and 0 deletions
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27
drivers/net/hyperv/netvsc_drv.c
View file

@ -1008,6 +1008,30 @@ static void netvsc_get_strings(struct net_device *dev, u32 stringset, u8 *data)
}
}
static int
netvsc_get_rss_hash_opts(struct netvsc_device *nvdev,
struct ethtool_rxnfc *info)
{
info->data = RXH_IP_SRC | RXH_IP_DST;
switch (info->flow_type) {
case TCP_V4_FLOW:
case TCP_V6_FLOW:
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* fallthrough */
case UDP_V4_FLOW:
case UDP_V6_FLOW:
case IPV4_FLOW:
case IPV6_FLOW:
break;
default:
info->data = 0;
break;
}
return 0;
}
static int
netvsc_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
u32 *rules)
@ -1019,6 +1043,9 @@ netvsc_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info,
case ETHTOOL_GRXRINGS:
info->data = nvdev->num_chn;
return 0;
case ETHTOOL_GRXFH:
return netvsc_get_rss_hash_opts(nvdev, info);
}
return -EOPNOTSUPP;
}