From c833484e5f3872a38fe232c663586069d5ad9645 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Tue, 10 Nov 2015 18:50:51 +0100 Subject: batman-adv: ELP - compute the metric based on the estimated throughput In case of wireless interface retrieve the throughput by querying cfg80211. To perform this call a separate work must be scheduled because the function may sleep and this is not allowed within an RCU protected context (RCU in this case is used to iterate over all the neighbours). Use ethtool to retrieve information about an Ethernet link like HALF/FULL_DUPLEX and advertised bandwidth (e.g. 100/10Mbps). The metric is updated each time a new ELP packet is sent, this way it is possible to timely react to a metric variation which can imply (for example) a neighbour disconnection. Signed-off-by: Antonio Quartulli Signed-off-by: Marek Lindner --- net/batman-adv/main.h | 1 + 1 file changed, 1 insertion(+) (limited to 'net/batman-adv/main.h') diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h index 2e79544..5c68bf2 100644 --- a/net/batman-adv/main.h +++ b/net/batman-adv/main.h @@ -62,6 +62,7 @@ #define BATADV_TQ_TOTAL_BIDRECT_LIMIT 1 /* B.A.T.M.A.N. V */ +#define BATADV_THROUGHPUT_DEFAULT_VALUE 10 /* 1 Mbps */ #define BATADV_ELP_MAX_AGE 64 #define BATADV_OGM_MAX_ORIGDIFF 5 #define BATADV_OGM_MAX_AGE 64 -- cgit v1.1