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| author | Vivien Didelot <vivien.didelot@savoirfairelinux.com> | 2017-05-23 21:20:59 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-24 22:27:47 +0200 |
| commit | 64dba236a15770af1e07f90f23a54789c9f9a3ba (patch) | |
| tree | d1cd78fae4bc58288dc94e473d366ebf1a23a038 /net/dsa/switch.c | |
| parent | Merge branch 'mlxsw-tcpflags' (diff) | |
| download | linux-64dba236a15770af1e07f90f23a54789c9f9a3ba.tar.xz linux-64dba236a15770af1e07f90f23a54789c9f9a3ba.zip | |
net: dsa: support cross-chip ageing time
Now that the switchdev bridge ageing time attribute is propagated to all
switch chips of the fabric, each switch can check if the requested value
is valid and program itself, so that the whole fabric shares a common
ageing time setting.
This is especially needed for switch chips in between others, containing
no bridge port members but evidently used in the data path.
To achieve that, remove the condition which skips the other switches. We
also don't need to identify the target switch anymore, thus remove the
sw_index member of the dsa_notifier_ageing_time_info notifier structure.
On ZII Dev Rev B (with two 88E6352 and one 88E6185) and ZII Dev Rev C
(with two 88E6390X), we have the following hardware configuration:
# ip link add name br0 type bridge
# ip link set master br0 dev lan6
br0: port 1(lan6) entered blocking state
br0: port 1(lan6) entered disabled state
# echo 2000 > /sys/class/net/br0/bridge/ageing_time
Before this patch:
zii-rev-b# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
300000
300000
15000
zii-rev-c# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
300000
18750
After this patch:
zii-rev-b# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
15000
15000
15000
zii-rev-c# cat /sys/kernel/debug/mv88e6xxx/sw*/age_time
18750
18750
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/dsa/switch.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/net/dsa/switch.c b/net/dsa/switch.c index c1e4b2d5a3ae..d8e5c311ee7c 100644 --- a/net/dsa/switch.c +++ b/net/dsa/switch.c @@ -37,10 +37,6 @@ static int dsa_switch_ageing_time(struct dsa_switch *ds, unsigned int ageing_time = info->ageing_time; struct switchdev_trans *trans = info->trans; - /* Do not care yet about other switch chips of the fabric */ - if (ds->index != info->sw_index) - return 0; - if (switchdev_trans_ph_prepare(trans)) { if (ds->ageing_time_min && ageing_time < ds->ageing_time_min) return -ERANGE; |