From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: [PATCH 04/18] netvsc: report rss field values Date: Tue, 24 Jan 2017 13:06:01 -0800 Message-ID: <20170124210615.18628-5-sthemmin@microsoft.com> References: <20170124210615.18628-1-sthemmin@microsoft.com> Cc: netdev@vger.kernel.org, Stephen Hemminger To: davem@davemloft.net, kys@microsoft.com Return-path: Received: from mail-pg0-f47.google.com ([74.125.83.47]:35315 "EHLO mail-pg0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750815AbdAXVG7 (ORCPT ); Tue, 24 Jan 2017 16:06:59 -0500 Received: by mail-pg0-f47.google.com with SMTP id 194so57794057pgd.2 for ; Tue, 24 Jan 2017 13:06:22 -0800 (PST) In-Reply-To: <20170124210615.18628-1-sthemmin@microsoft.com> Sender: netdev-owner@vger.kernel.org List-ID: Report current components used in RSS hash. Signed-off-by: Stephen Hemminger --- drivers/net/hyperv/netvsc_drv.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index b158cab678b3..6ab8b52af965 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -1009,6 +1009,30 @@ 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; } -- 2.11.0