Simulate port function state of a PCI port.
This enables users to get and set the state of the PCI port function.
Example of a PCI SF port which supports a port function:
Create a device with ID=10 and one physical port.
$ echo "10 1" > /sys/bus/netdevsim/new_device
$ devlink port show
netdevsim/netdevsim10/0: type eth netdev eni10np1 flavour physical port 1
splittable false
$ devlink port add netdevsim/netdevsim10/10 flavour pcipf pfnum 0
$ devlink port function set netdevsim/netdevsim10/10 hw_addr 00:11:22:33:44:55
state active
$ devlink port show netdevsim/netdevsim10/10
netdevsim/netdevsim10/10: type eth netdev eni10npf0 flavour pcipf controller 0
pfnum 0 external true splittable false
function:
hw_addr 00:00:00:00:00:00 state inactive
$ devlink port function set netdevsim/netdevsim10/10 hw_addr 00:11:22:33:44:55
state active
$ devlink port show netdevsim/netdevsim10/10 -jp
{
"port": {
"netdevsim/netdevsim10/10": {
"type": "eth",
"netdev": "eni10npf0",
"flavour": "pcipf",
"controller": 0,
"pfnum": 0,
"external": false,
"splittable": false,
"function": {
"hw_addr": "00:11:22:33:44:55",
"state": "active"
}
}
}
}
Signed-off-by: Parav Pandit <pa...@nvidia.com>
Reviewed-by: Jiri Pirko <j...@nvidia.com>
---
drivers/net/netdevsim/dev.c | 2 ++
drivers/net/netdevsim/netdevsim.h | 6 ++++++
drivers/net/netdevsim/port_function.c | 30 +++++++++++++++++++++++++++
3 files changed, 38 insertions(+)
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index ef2e293f358b..ec1e5dc74be1 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -888,6 +888,8 @@ static const struct devlink_ops nsim_dev_devlink_ops = {
.port_del = nsim_dev_devlink_port_del,
.port_function_hw_addr_get = nsim_dev_port_function_hw_addr_get,
.port_function_hw_addr_set = nsim_dev_port_function_hw_addr_set,
+ .port_function_state_get = nsim_dev_port_function_state_get,
+ .port_function_state_set = nsim_dev_port_function_state_set,
};
#define NSIM_DEV_MAX_MACS_DEFAULT 32
diff --git a/drivers/net/netdevsim/netdevsim.h
b/drivers/net/netdevsim/netdevsim.h
index 8dc8f4e5dcd8..0ea9705eda38 100644
--- a/drivers/net/netdevsim/netdevsim.h
+++ b/drivers/net/netdevsim/netdevsim.h
@@ -308,3 +308,9 @@ int nsim_dev_port_function_hw_addr_get(struct devlink
*devlink, struct devlink_p
int nsim_dev_port_function_hw_addr_set(struct devlink *devlink, struct
devlink_port *port,
const u8 *hw_addr, int hw_addr_len,
struct netlink_ext_ack *extack);
+int nsim_dev_port_function_state_get(struct devlink *devlink, struct
devlink_port *port,
+ enum devlink_port_function_state *state,
+ struct netlink_ext_ack *extack);
+int nsim_dev_port_function_state_set(struct devlink *devlink, struct
devlink_port *port,
+ enum devlink_port_function_state state,
+ struct netlink_ext_ack *extack);
diff --git a/drivers/net/netdevsim/port_function.c
b/drivers/net/netdevsim/port_function.c
index 0053f6f6d530..01587b54f0e0 100644
--- a/drivers/net/netdevsim/port_function.c
+++ b/drivers/net/netdevsim/port_function.c
@@ -16,6 +16,7 @@ struct nsim_port_function {
u16 pfnum;
struct nsim_port_function *pf_port; /* Valid only for SF port */
u8 hw_addr[ETH_ALEN];
+ u8 state; /* enum devlink_port_function_state */
};
void nsim_dev_port_function_init(struct nsim_dev *nsim_dev)
@@ -196,6 +197,7 @@ static int nsim_devlink_port_function_add(struct devlink
*devlink, struct nsim_d
list_add(&port->list, &nsim_dev->port_functions.head);
+ port->state = DEVLINK_PORT_FUNCTION_STATE_INACTIVE;
err = devlink_port_register(devlink, &port->dl_port, port->port_index);
if (err)
goto reg_err;
@@ -379,3 +381,31 @@ int nsim_dev_port_function_hw_addr_set(struct devlink
*devlink, struct devlink_p
memcpy(port->hw_addr, hw_addr, ETH_ALEN);
return 0;
}
+
+int nsim_dev_port_function_state_get(struct devlink *devlink, struct
devlink_port *dl_port,
+ enum devlink_port_function_state *state,
+ struct netlink_ext_ack *extack)
+{
+ struct nsim_dev *nsim_dev = devlink_priv(devlink);
+ struct nsim_port_function *port;
+
+ port = nsim_dev_to_port_function(nsim_dev, dl_port);
+ if (IS_ERR(port))
+ return PTR_ERR(port);
+ *state = port->state;
+ return 0;
+}
+
+int nsim_dev_port_function_state_set(struct devlink *devlink, struct
devlink_port *dl_port,
+ enum devlink_port_function_state state,
+ struct netlink_ext_ack *extack)
+{
+ struct nsim_dev *nsim_dev = devlink_priv(devlink);
+ struct nsim_port_function *port;
+
+ port = nsim_dev_to_port_function(nsim_dev, dl_port);
+ if (IS_ERR(port))
+ return PTR_ERR(port);
+ port->state = state;
+ return 0;
+}
--
2.26.2
