xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net: dsa: sja1105: Add a global sja1105_tagger_data structure

Browse Source 
This will be used to keep state for RX timestamping. It is global
because the switch serializes timestampable and meta frames when
trapping them towards the CPU port (lower port indices have higher
priority) and therefore having one state machine per port would create
unnecessary complications.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vladimir Oltean
2019-06-08 15:04:40 +03:00
committed by David S. Miller
parent e53e18a6fe
commit 844d7edc6a
3 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/dsa/sja1105/sja1105_main.c
View File

@@ -1828,6 +1828,7 @@ static int sja1105_check_device_id(struct sja1105_private *priv)
static int sja1105_probe(struct spi_device *spi)
{
struct sja1105_tagger_data *tagger_data;
struct device *dev = &spi->dev;
struct sja1105_private *priv;
struct dsa_switch *ds;
@@ -1882,12 +1883,16 @@ static int sja1105_probe(struct spi_device *spi)
ds->priv = priv;
priv->ds = ds;
tagger_data = &priv->tagger_data;
skb_queue_head_init(&tagger_data->skb_rxtstamp_queue);
/* Connections between dsa_port and sja1105_port */
for (i = 0; i < SJA1105_NUM_PORTS; i++) {
struct sja1105_port *sp = &priv->ports[i];
ds->ports[i].priv = sp;
sp->dp = &ds->ports[i];
sp->data = tagger_data;
}
mutex_init(&priv->mgmt_lock);