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vmxnet3: add support for ESP IPv6 RSS

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Vmxnet3 version 4 added support for ESP RSS. However, only IPv4 was
supported. With vmxnet3 version 6, this patch enables RSS for ESP
IPv6 packets as well.

Signed-off-by: Ronak Doshi <doshir@vmware.com>
Acked-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ronak Doshi 2021-07-16 15:36:23 -07:00 committed by David S. Miller
parent 15ccf2f4b0
commit 79d124bb36
1 changed files with 20 additions and 0 deletions
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20
drivers/net/vmxnet3/vmxnet3_ethtool.c
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@ -787,6 +787,10 @@ vmxnet3_get_rss_hash_opts(struct vmxnet3_adapter *adapter,
case AH_ESP_V6_FLOW:
case AH_V6_FLOW:
case ESP_V6_FLOW:
if (VMXNET3_VERSION_GE_6(adapter) &&
(rss_fields & VMXNET3_RSS_FIELDS_ESPIP6))
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
fallthrough;
case SCTP_V6_FLOW:
case IPV6_FLOW:
info->data |= RXH_IP_SRC | RXH_IP_DST;
@ -871,6 +875,22 @@ vmxnet3_set_rss_hash_opt(struct net_device *netdev,
case ESP_V6_FLOW:
case AH_V6_FLOW:
case AH_ESP_V6_FLOW:
if (!VMXNET3_VERSION_GE_6(adapter))
return -EOPNOTSUPP;
if (!(nfc->data & RXH_IP_SRC) ||
!(nfc->data & RXH_IP_DST))
return -EINVAL;
switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
case 0:
rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP6;
break;
case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
rss_fields |= VMXNET3_RSS_FIELDS_ESPIP6;
break;
default:
return -EINVAL;
}
break;
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
if (!(nfc->data & RXH_IP_SRC) ||