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authorVivien Didelot <vivien.didelot@gmail.com>2019-10-21 16:51:19 -0400
committerJakub Kicinski <jakub.kicinski@netronome.com>2019-10-22 12:37:06 -0700
commitfb35c60cbacc67a6075fb8e3d98fa348665662fe (patch)
tree17f6f1fbb92d24d6ff9492901a5812e2e40661f4 /net/dsa
parent7b9a2f4bac68e1dcc77baebd8c1e32d43710bafa (diff)
downloadlinux-fb35c60cbacc67a6075fb8e3d98fa348665662fe.tar.bz2
net: dsa: use ports list to setup switches
Use the new ports list instead of iterating over switches and their ports when setting up the switches and their ports. At the same time, provide setup states and messages for ports and switches as it is done for the trees. Signed-off-by: Vivien Didelot <vivien.didelot@gmail.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/dsa2.c93
1 files changed, 41 insertions, 52 deletions
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index ba27ff8b4445..01b6047d9b7b 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -267,6 +267,9 @@ static int dsa_port_setup(struct dsa_port *dp)
bool dsa_port_enabled = false;
int err = 0;
+ if (dp->setup)
+ return 0;
+
switch (dp->type) {
case DSA_PORT_TYPE_UNUSED:
dsa_port_disable(dp);
@@ -335,14 +338,21 @@ static int dsa_port_setup(struct dsa_port *dp)
dsa_port_link_unregister_of(dp);
if (err && devlink_port_registered)
devlink_port_unregister(dlp);
+ if (err)
+ return err;
- return err;
+ dp->setup = true;
+
+ return 0;
}
static void dsa_port_teardown(struct dsa_port *dp)
{
struct devlink_port *dlp = &dp->devlink_port;
+ if (!dp->setup)
+ return;
+
switch (dp->type) {
case DSA_PORT_TYPE_UNUSED:
break;
@@ -365,11 +375,16 @@ static void dsa_port_teardown(struct dsa_port *dp)
}
break;
}
+
+ dp->setup = false;
}
static int dsa_switch_setup(struct dsa_switch *ds)
{
- int err = 0;
+ int err;
+
+ if (ds->setup)
+ return 0;
/* Initialize ds->phys_mii_mask before registering the slave MDIO bus
* driver and before ops->setup() has run, since the switch drivers and
@@ -411,6 +426,8 @@ static int dsa_switch_setup(struct dsa_switch *ds)
goto unregister_notifier;
}
+ ds->setup = true;
+
return 0;
unregister_notifier:
@@ -426,6 +443,9 @@ free_devlink:
static void dsa_switch_teardown(struct dsa_switch *ds)
{
+ if (!ds->setup)
+ return;
+
if (ds->slave_mii_bus && ds->ops->phy_read)
mdiobus_unregister(ds->slave_mii_bus);
@@ -440,78 +460,47 @@ static void dsa_switch_teardown(struct dsa_switch *ds)
ds->devlink = NULL;
}
+ ds->setup = false;
}
static int dsa_tree_setup_switches(struct dsa_switch_tree *dst)
{
- struct dsa_switch *ds;
struct dsa_port *dp;
- int device, port, i;
- int err = 0;
-
- for (device = 0; device < DSA_MAX_SWITCHES; device++) {
- ds = dst->ds[device];
- if (!ds)
- continue;
+ int err;
- err = dsa_switch_setup(ds);
+ list_for_each_entry(dp, &dst->ports, list) {
+ err = dsa_switch_setup(dp->ds);
if (err)
- goto switch_teardown;
-
- for (port = 0; port < ds->num_ports; port++) {
- dp = &ds->ports[port];
+ goto teardown;
+ }
- err = dsa_port_setup(dp);
- if (err)
- goto ports_teardown;
- }
+ list_for_each_entry(dp, &dst->ports, list) {
+ err = dsa_port_setup(dp);
+ if (err)
+ goto teardown;
}
return 0;
-ports_teardown:
- for (i = 0; i < port; i++)
- dsa_port_teardown(&ds->ports[i]);
-
- dsa_switch_teardown(ds);
-
-switch_teardown:
- for (i = 0; i < device; i++) {
- ds = dst->ds[i];
- if (!ds)
- continue;
-
- for (port = 0; port < ds->num_ports; port++) {
- dp = &ds->ports[port];
-
- dsa_port_teardown(dp);
- }
+teardown:
+ list_for_each_entry(dp, &dst->ports, list)
+ dsa_port_teardown(dp);
- dsa_switch_teardown(ds);
- }
+ list_for_each_entry(dp, &dst->ports, list)
+ dsa_switch_teardown(dp->ds);
return err;
}
static void dsa_tree_teardown_switches(struct dsa_switch_tree *dst)
{
- struct dsa_switch *ds;
struct dsa_port *dp;
- int device, port;
- for (device = 0; device < DSA_MAX_SWITCHES; device++) {
- ds = dst->ds[device];
- if (!ds)
- continue;
+ list_for_each_entry(dp, &dst->ports, list)
+ dsa_port_teardown(dp);
- for (port = 0; port < ds->num_ports; port++) {
- dp = &ds->ports[port];
-
- dsa_port_teardown(dp);
- }
-
- dsa_switch_teardown(ds);
- }
+ list_for_each_entry(dp, &dst->ports, list)
+ dsa_switch_teardown(dp->ds);
}
static int dsa_tree_setup_master(struct dsa_switch_tree *dst)