diff options
| author | Vladimir Oltean <olteanv@gmail.com> | 2019-08-30 04:07:23 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-08-31 18:45:35 -0700 |
| commit | 1c6c09a0ae62fa3ea8f8ead2ac3920e6fff2de64 (patch) | |
| tree | 1808a1b40a13e500b0a7363e3a279061ba54caa4 /net/sched/sch_cbs.c | |
| parent | f04b514c0ce2f20aad757ebfb04e07b1a12d2b58 (diff) | |
| download | linux-1c6c09a0ae62fa3ea8f8ead2ac3920e6fff2de64.tar.gz | |
net/sched: cbs: Set default link speed to 10 Mbps in cbs_set_port_rate
The discussion to be made is absolutely the same as in the case of
previous patch ("taprio: Set default link speed to 10 Mbps in
taprio_set_picos_per_byte"). Nothing is lost when setting a default.
Cc: Leandro Dorileo <leandro.maciel.dorileo@intel.com>
Fixes: e0a7683d30e9 ("net/sched: cbs: fix port_rate miscalculation")
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_cbs.c')
| -rw-r--r-- | net/sched/sch_cbs.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/net/sched/sch_cbs.c b/net/sched/sch_cbs.c index 732e109c3055..810645b5c086 100644 --- a/net/sched/sch_cbs.c +++ b/net/sched/sch_cbs.c @@ -181,11 +181,6 @@ static struct sk_buff *cbs_dequeue_soft(struct Qdisc *sch) s64 credits; int len; - if (atomic64_read(&q->port_rate) == -1) { - WARN_ONCE(1, "cbs: dequeue() called with unknown port rate."); - return NULL; - } - if (q->credits < 0) { credits = timediff_to_credits(now - q->last, q->idleslope); @@ -303,11 +298,19 @@ static int cbs_enable_offload(struct net_device *dev, struct cbs_sched_data *q, static void cbs_set_port_rate(struct net_device *dev, struct cbs_sched_data *q) { struct ethtool_link_ksettings ecmd; + int speed = SPEED_10; int port_rate = -1; + int err; + + err = __ethtool_get_link_ksettings(dev, &ecmd); + if (err < 0) + goto skip; + + if (ecmd.base.speed != SPEED_UNKNOWN) + speed = ecmd.base.speed; - if (!__ethtool_get_link_ksettings(dev, &ecmd) && - ecmd.base.speed != SPEED_UNKNOWN) - port_rate = ecmd.base.speed * 1000 * BYTES_PER_KBIT; +skip: + port_rate = speed * 1000 * BYTES_PER_KBIT; atomic64_set(&q->port_rate, port_rate); netdev_dbg(dev, "cbs: set %s's port_rate to: %lld, linkspeed: %d\n", |