From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 19 Dec 2024 01:47:39 +0000
Subject: [PATCH] add wifi6 8852be driver
---
kernel/drivers/net/ethernet/mellanox/mlxsw/minimal.c | 423 ++++++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 403 insertions(+), 20 deletions(-)
diff --git a/kernel/drivers/net/ethernet/mellanox/mlxsw/minimal.c b/kernel/drivers/net/ethernet/mellanox/mlxsw/minimal.c
index 5a6c445..443dc44 100644
--- a/kernel/drivers/net/ethernet/mellanox/mlxsw/minimal.c
+++ b/kernel/drivers/net/ethernet/mellanox/mlxsw/minimal.c
@@ -1,6 +1,9 @@
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
-/* Copyright (c) 2016-2018 Mellanox Technologies. All rights reserved */
+/* Copyright (c) 2016-2019 Mellanox Technologies. All rights reserved */
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -8,59 +11,439 @@
#include <linux/types.h>
#include "core.h"
+#include "core_env.h"
#include "i2c.h"
-static const char mlxsw_minimal_driver_name[] = "mlxsw_minimal";
+static const char mlxsw_m_driver_name[] = "mlxsw_minimal";
-static const struct mlxsw_config_profile mlxsw_minimal_config_profile;
+#define MLXSW_M_FWREV_MINOR 2000
+#define MLXSW_M_FWREV_SUBMINOR 1886
-static struct mlxsw_driver mlxsw_minimal_driver = {
- .kind = mlxsw_minimal_driver_name,
- .priv_size = 1,
- .profile = &mlxsw_minimal_config_profile,
+static const struct mlxsw_fw_rev mlxsw_m_fw_rev = {
+ .minor = MLXSW_M_FWREV_MINOR,
+ .subminor = MLXSW_M_FWREV_SUBMINOR,
};
-static const struct i2c_device_id mlxsw_minimal_i2c_id[] = {
+struct mlxsw_m_port;
+
+struct mlxsw_m {
+ struct mlxsw_m_port **ports;
+ int *module_to_port;
+ struct mlxsw_core *core;
+ const struct mlxsw_bus_info *bus_info;
+ u8 base_mac[ETH_ALEN];
+ u8 max_ports;
+};
+
+struct mlxsw_m_port {
+ struct net_device *dev;
+ struct mlxsw_m *mlxsw_m;
+ u8 local_port;
+ u8 module;
+};
+
+static int mlxsw_m_base_mac_get(struct mlxsw_m *mlxsw_m)
+{
+ char spad_pl[MLXSW_REG_SPAD_LEN] = {0};
+ int err;
+
+ err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(spad), spad_pl);
+ if (err)
+ return err;
+ mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_m->base_mac);
+ return 0;
+}
+
+static int mlxsw_m_port_dummy_open_stop(struct net_device *dev)
+{
+ return 0;
+}
+
+static struct devlink_port *
+mlxsw_m_port_get_devlink_port(struct net_device *dev)
+{
+ struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev);
+ struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m;
+
+ return mlxsw_core_port_devlink_port_get(mlxsw_m->core,
+ mlxsw_m_port->local_port);
+}
+
+static const struct net_device_ops mlxsw_m_port_netdev_ops = {
+ .ndo_open = mlxsw_m_port_dummy_open_stop,
+ .ndo_stop = mlxsw_m_port_dummy_open_stop,
+ .ndo_get_devlink_port = mlxsw_m_port_get_devlink_port,
+};
+
+static void mlxsw_m_module_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev);
+ struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m;
+
+ strlcpy(drvinfo->driver, mlxsw_m->bus_info->device_kind,
+ sizeof(drvinfo->driver));
+ snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+ "%d.%d.%d",
+ mlxsw_m->bus_info->fw_rev.major,
+ mlxsw_m->bus_info->fw_rev.minor,
+ mlxsw_m->bus_info->fw_rev.subminor);
+ strlcpy(drvinfo->bus_info, mlxsw_m->bus_info->device_name,
+ sizeof(drvinfo->bus_info));
+}
+
+static int mlxsw_m_get_module_info(struct net_device *netdev,
+ struct ethtool_modinfo *modinfo)
+{
+ struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
+ struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
+
+ return mlxsw_env_get_module_info(core, mlxsw_m_port->module, modinfo);
+}
+
+static int
+mlxsw_m_get_module_eeprom(struct net_device *netdev, struct ethtool_eeprom *ee,
+ u8 *data)
+{
+ struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
+ struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
+
+ return mlxsw_env_get_module_eeprom(netdev, core, mlxsw_m_port->module,
+ ee, data);
+}
+
+static const struct ethtool_ops mlxsw_m_port_ethtool_ops = {
+ .get_drvinfo = mlxsw_m_module_get_drvinfo,
+ .get_module_info = mlxsw_m_get_module_info,
+ .get_module_eeprom = mlxsw_m_get_module_eeprom,
+};
+
+static int
+mlxsw_m_port_module_info_get(struct mlxsw_m *mlxsw_m, u8 local_port,
+ u8 *p_module, u8 *p_width)
+{
+ char pmlp_pl[MLXSW_REG_PMLP_LEN];
+ int err;
+
+ mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
+ err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(pmlp), pmlp_pl);
+ if (err)
+ return err;
+ *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0);
+ *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl);
+
+ return 0;
+}
+
+static int
+mlxsw_m_port_dev_addr_get(struct mlxsw_m_port *mlxsw_m_port)
+{
+ struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m;
+ struct net_device *dev = mlxsw_m_port->dev;
+ char ppad_pl[MLXSW_REG_PPAD_LEN];
+ int err;
+
+ mlxsw_reg_ppad_pack(ppad_pl, false, 0);
+ err = mlxsw_reg_query(mlxsw_m->core, MLXSW_REG(ppad), ppad_pl);
+ if (err)
+ return err;
+ mlxsw_reg_ppad_mac_memcpy_from(ppad_pl, dev->dev_addr);
+ /* The last byte value in base mac address is guaranteed
+ * to be such it does not overflow when adding local_port
+ * value.
+ */
+ dev->dev_addr[ETH_ALEN - 1] += mlxsw_m_port->module + 1;
+ return 0;
+}
+
+static int
+mlxsw_m_port_create(struct mlxsw_m *mlxsw_m, u8 local_port, u8 module)
+{
+ struct mlxsw_m_port *mlxsw_m_port;
+ struct net_device *dev;
+ int err;
+
+ err = mlxsw_core_port_init(mlxsw_m->core, local_port,
+ module + 1, false, 0, false,
+ 0, mlxsw_m->base_mac,
+ sizeof(mlxsw_m->base_mac));
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Port %d: Failed to init core port\n",
+ local_port);
+ return err;
+ }
+
+ dev = alloc_etherdev(sizeof(struct mlxsw_m_port));
+ if (!dev) {
+ err = -ENOMEM;
+ goto err_alloc_etherdev;
+ }
+
+ SET_NETDEV_DEV(dev, mlxsw_m->bus_info->dev);
+ dev_net_set(dev, mlxsw_core_net(mlxsw_m->core));
+ mlxsw_m_port = netdev_priv(dev);
+ mlxsw_m_port->dev = dev;
+ mlxsw_m_port->mlxsw_m = mlxsw_m;
+ mlxsw_m_port->local_port = local_port;
+ mlxsw_m_port->module = module;
+
+ dev->netdev_ops = &mlxsw_m_port_netdev_ops;
+ dev->ethtool_ops = &mlxsw_m_port_ethtool_ops;
+
+ err = mlxsw_m_port_dev_addr_get(mlxsw_m_port);
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Port %d: Unable to get port mac address\n",
+ mlxsw_m_port->local_port);
+ goto err_dev_addr_get;
+ }
+
+ netif_carrier_off(dev);
+ mlxsw_m->ports[local_port] = mlxsw_m_port;
+ err = register_netdev(dev);
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Port %d: Failed to register netdev\n",
+ mlxsw_m_port->local_port);
+ goto err_register_netdev;
+ }
+
+ mlxsw_core_port_eth_set(mlxsw_m->core, mlxsw_m_port->local_port,
+ mlxsw_m_port, dev);
+
+ return 0;
+
+err_register_netdev:
+ mlxsw_m->ports[local_port] = NULL;
+err_dev_addr_get:
+ free_netdev(dev);
+err_alloc_etherdev:
+ mlxsw_core_port_fini(mlxsw_m->core, local_port);
+ return err;
+}
+
+static void mlxsw_m_port_remove(struct mlxsw_m *mlxsw_m, u8 local_port)
+{
+ struct mlxsw_m_port *mlxsw_m_port = mlxsw_m->ports[local_port];
+
+ mlxsw_core_port_clear(mlxsw_m->core, local_port, mlxsw_m);
+ unregister_netdev(mlxsw_m_port->dev); /* This calls ndo_stop */
+ mlxsw_m->ports[local_port] = NULL;
+ free_netdev(mlxsw_m_port->dev);
+ mlxsw_core_port_fini(mlxsw_m->core, local_port);
+}
+
+static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u8 local_port,
+ u8 *last_module)
+{
+ unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core);
+ u8 module, width;
+ int err;
+
+ /* Fill out to local port mapping array */
+ err = mlxsw_m_port_module_info_get(mlxsw_m, local_port, &module,
+ &width);
+ if (err)
+ return err;
+
+ if (!width)
+ return 0;
+ /* Skip, if port belongs to the cluster */
+ if (module == *last_module)
+ return 0;
+ *last_module = module;
+
+ if (WARN_ON_ONCE(module >= max_ports))
+ return -EINVAL;
+ mlxsw_m->module_to_port[module] = ++mlxsw_m->max_ports;
+
+ return 0;
+}
+
+static void mlxsw_m_port_module_unmap(struct mlxsw_m *mlxsw_m, u8 module)
+{
+ mlxsw_m->module_to_port[module] = -1;
+}
+
+static int mlxsw_m_ports_create(struct mlxsw_m *mlxsw_m)
+{
+ unsigned int max_ports = mlxsw_core_max_ports(mlxsw_m->core);
+ u8 last_module = max_ports;
+ int i;
+ int err;
+
+ mlxsw_m->ports = kcalloc(max_ports, sizeof(*mlxsw_m->ports),
+ GFP_KERNEL);
+ if (!mlxsw_m->ports)
+ return -ENOMEM;
+
+ mlxsw_m->module_to_port = kmalloc_array(max_ports, sizeof(int),
+ GFP_KERNEL);
+ if (!mlxsw_m->module_to_port) {
+ err = -ENOMEM;
+ goto err_module_to_port_alloc;
+ }
+
+ /* Invalidate the entries of module to local port mapping array */
+ for (i = 0; i < max_ports; i++)
+ mlxsw_m->module_to_port[i] = -1;
+
+ /* Fill out module to local port mapping array */
+ for (i = 1; i < max_ports; i++) {
+ err = mlxsw_m_port_module_map(mlxsw_m, i, &last_module);
+ if (err)
+ goto err_module_to_port_map;
+ }
+
+ /* Create port objects for each valid entry */
+ for (i = 0; i < mlxsw_m->max_ports; i++) {
+ if (mlxsw_m->module_to_port[i] > 0) {
+ err = mlxsw_m_port_create(mlxsw_m,
+ mlxsw_m->module_to_port[i],
+ i);
+ if (err)
+ goto err_module_to_port_create;
+ }
+ }
+
+ return 0;
+
+err_module_to_port_create:
+ for (i--; i >= 0; i--) {
+ if (mlxsw_m->module_to_port[i] > 0)
+ mlxsw_m_port_remove(mlxsw_m,
+ mlxsw_m->module_to_port[i]);
+ }
+ i = max_ports;
+err_module_to_port_map:
+ for (i--; i > 0; i--)
+ mlxsw_m_port_module_unmap(mlxsw_m, i);
+ kfree(mlxsw_m->module_to_port);
+err_module_to_port_alloc:
+ kfree(mlxsw_m->ports);
+ return err;
+}
+
+static void mlxsw_m_ports_remove(struct mlxsw_m *mlxsw_m)
+{
+ int i;
+
+ for (i = 0; i < mlxsw_m->max_ports; i++) {
+ if (mlxsw_m->module_to_port[i] > 0) {
+ mlxsw_m_port_remove(mlxsw_m,
+ mlxsw_m->module_to_port[i]);
+ mlxsw_m_port_module_unmap(mlxsw_m, i);
+ }
+ }
+
+ kfree(mlxsw_m->module_to_port);
+ kfree(mlxsw_m->ports);
+}
+
+static int mlxsw_m_fw_rev_validate(struct mlxsw_m *mlxsw_m)
+{
+ const struct mlxsw_fw_rev *rev = &mlxsw_m->bus_info->fw_rev;
+
+ /* Validate driver and FW are compatible.
+ * Do not check major version, since it defines chip type, while
+ * driver is supposed to support any type.
+ */
+ if (mlxsw_core_fw_rev_minor_subminor_validate(rev, &mlxsw_m_fw_rev))
+ return 0;
+
+ dev_err(mlxsw_m->bus_info->dev, "The firmware version %d.%d.%d is incompatible with the driver (required >= %d.%d.%d)\n",
+ rev->major, rev->minor, rev->subminor, rev->major,
+ mlxsw_m_fw_rev.minor, mlxsw_m_fw_rev.subminor);
+
+ return -EINVAL;
+}
+
+static int mlxsw_m_init(struct mlxsw_core *mlxsw_core,
+ const struct mlxsw_bus_info *mlxsw_bus_info,
+ struct netlink_ext_ack *extack)
+{
+ struct mlxsw_m *mlxsw_m = mlxsw_core_driver_priv(mlxsw_core);
+ int err;
+
+ mlxsw_m->core = mlxsw_core;
+ mlxsw_m->bus_info = mlxsw_bus_info;
+
+ err = mlxsw_m_fw_rev_validate(mlxsw_m);
+ if (err)
+ return err;
+
+ err = mlxsw_m_base_mac_get(mlxsw_m);
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Failed to get base mac\n");
+ return err;
+ }
+
+ err = mlxsw_m_ports_create(mlxsw_m);
+ if (err) {
+ dev_err(mlxsw_m->bus_info->dev, "Failed to create ports\n");
+ return err;
+ }
+
+ return 0;
+}
+
+static void mlxsw_m_fini(struct mlxsw_core *mlxsw_core)
+{
+ struct mlxsw_m *mlxsw_m = mlxsw_core_driver_priv(mlxsw_core);
+
+ mlxsw_m_ports_remove(mlxsw_m);
+}
+
+static const struct mlxsw_config_profile mlxsw_m_config_profile;
+
+static struct mlxsw_driver mlxsw_m_driver = {
+ .kind = mlxsw_m_driver_name,
+ .priv_size = sizeof(struct mlxsw_m),
+ .init = mlxsw_m_init,
+ .fini = mlxsw_m_fini,
+ .profile = &mlxsw_m_config_profile,
+ .res_query_enabled = true,
+};
+
+static const struct i2c_device_id mlxsw_m_i2c_id[] = {
{ "mlxsw_minimal", 0},
{ },
};
-static struct i2c_driver mlxsw_minimal_i2c_driver = {
+static struct i2c_driver mlxsw_m_i2c_driver = {
.driver.name = "mlxsw_minimal",
.class = I2C_CLASS_HWMON,
- .id_table = mlxsw_minimal_i2c_id,
+ .id_table = mlxsw_m_i2c_id,
};
-static int __init mlxsw_minimal_module_init(void)
+static int __init mlxsw_m_module_init(void)
{
int err;
- err = mlxsw_core_driver_register(&mlxsw_minimal_driver);
+ err = mlxsw_core_driver_register(&mlxsw_m_driver);
if (err)
return err;
- err = mlxsw_i2c_driver_register(&mlxsw_minimal_i2c_driver);
+ err = mlxsw_i2c_driver_register(&mlxsw_m_i2c_driver);
if (err)
goto err_i2c_driver_register;
return 0;
err_i2c_driver_register:
- mlxsw_core_driver_unregister(&mlxsw_minimal_driver);
+ mlxsw_core_driver_unregister(&mlxsw_m_driver);
return err;
}
-static void __exit mlxsw_minimal_module_exit(void)
+static void __exit mlxsw_m_module_exit(void)
{
- mlxsw_i2c_driver_unregister(&mlxsw_minimal_i2c_driver);
- mlxsw_core_driver_unregister(&mlxsw_minimal_driver);
+ mlxsw_i2c_driver_unregister(&mlxsw_m_i2c_driver);
+ mlxsw_core_driver_unregister(&mlxsw_m_driver);
}
-module_init(mlxsw_minimal_module_init);
-module_exit(mlxsw_minimal_module_exit);
+module_init(mlxsw_m_module_init);
+module_exit(mlxsw_m_module_exit);
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
MODULE_DESCRIPTION("Mellanox minimal driver");
-MODULE_DEVICE_TABLE(i2c, mlxsw_minimal_i2c_id);
+MODULE_DEVICE_TABLE(i2c, mlxsw_m_i2c_id);
--
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