Thread (6 messages) 6 messages, 2 authors, 2016-09-16

Re: [patch net-next v9 2/3] net: core: Add offload stats to if_stats_msg

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From: Nikolay Aleksandrov <hidden>
Date: 2016-09-16 08:00:47

On Sep 14, 2016, at 12:28 PM, Jiri Pirko [off-list ref] wrote:

From: Nogah Frankel <redacted>

Add a nested attribute of offload stats to if_stats_msg
named IFLA_STATS_LINK_OFFLOAD_XSTATS.
Under it, add SW stats, meaning stats only per packets that went via
slowpath to the cpu, named IFLA_OFFLOAD_XSTATS_CPU_HIT.

Signed-off-by: Nogah Frankel <redacted>
Signed-off-by: Jiri Pirko <redacted>
---
include/uapi/linux/if_link.h |   9 ++++
net/core/rtnetlink.c         | 111 +++++++++++++++++++++++++++++++++++++++++--
2 files changed, 116 insertions(+), 4 deletions(-)
[snip]
quoted hunk ↗ jump to hunk
@@ -3655,6 +3737,24 @@ static int rtnl_fill_statsinfo(struct sk_buff *skb, struct net_device *dev,
		}
	}

+	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_OFFLOAD_XSTATS,
+			     *idxattr)) {
+		*idxattr = IFLA_STATS_LINK_OFFLOAD_XSTATS;
+		attr = nla_nest_start(skb, IFLA_STATS_LINK_OFFLOAD_XSTATS);
+		if (!attr)
+			goto nla_put_failure;
+
+		err = rtnl_get_offload_stats(skb, dev, prividx);
+		if (err == -ENODATA)
+			nla_nest_cancel(skb, attr);
+		else
+			nla_nest_end(skb, attr);
+
+		if ((err) && (err != -ENODATA))
                       ^^^^       ^^^^^^^^^^^^^^^^^^
The extra braces are still there. [1]
The rest looks good to me.

Thanks,
 Nik

[1] http://www.spinics.net/lists/netdev/msg394257.html
quoted hunk ↗ jump to hunk
+			goto nla_put_failure;
+		*idxattr = 0;
+	}
+
	nlmsg_end(skb, nlh);

	return 0;
@@ -3708,6 +3808,9 @@ static size_t if_nlmsg_stats_size(const struct net_device *dev,
		}
	}

+	if (stats_attr_valid(filter_mask, IFLA_STATS_LINK_OFFLOAD_XSTATS, 0))
+		size += rtnl_get_offload_stats_size(dev);
+
	return size;
}

-- 
2.5.5
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