[PATCH net-next 4/7] vmxnet3: add support for ESP IPv6 RSS
From: Ronak Doshi <hidden>
Date: 2021-07-06 20:18:49
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Subsystem:
networking drivers, the rest, vmware vmxnet3 ethernet driver · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Ronak Doshi
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 <redacted> --- drivers/net/vmxnet3/vmxnet3_ethtool.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index efb59f13227e..43122893e13c 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c@@ -769,6 +769,10 @@ 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;
@@ -853,6 +857,22 @@ 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) ||
--
2.11.0