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fjes: platform_driver's .probe and .remove routine 

This patch implements platform_driver's .probe and .remove
routine, and also adds board specific private data structure.

This driver registers net_device at platform_driver's .probe
routine and unregisters net_device at its .remove routine.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Taku Izumi 2015-08-21 17:29:20 +09:00 committed by David S. Miller
parent a18aaec21e
commit 2fcbca6877
2 changed files with 119 additions and 0 deletions
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25
drivers/net/fjes/fjes.h
View File

@ -24,7 +24,32 @@
#include <linux/acpi.h>
#include "fjes_hw.h"
#define FJES_ACPI_SYMBOL "Extended Socket"
#define FJES_MAX_QUEUES 1
#define FJES_TX_RETRY_INTERVAL (20 * HZ)
/* board specific private data structure */
struct fjes_adapter {
struct net_device *netdev;
struct platform_device *plat_dev;
struct napi_struct napi;
struct rtnl_link_stats64 stats64;
unsigned int tx_retry_count;
unsigned long tx_start_jiffies;
unsigned long rx_last_jiffies;
bool unset_rx_last;
bool force_reset;
bool open_guard;
bool irq_registered;
struct fjes_hw hw;
};
extern char fjes_driver_name[];
extern char fjes_driver_version[];

94
drivers/net/fjes/fjes_main.c
View File

@ -23,6 +23,7 @@
#include <linux/types.h>
#include <linux/nls.h>
#include <linux/platform_device.h>
#include <linux/netdevice.h>
#include "fjes.h"
@ -49,6 +50,9 @@ static acpi_status fjes_get_acpi_resource(struct acpi_resource *, void*);
static int fjes_probe(struct platform_device *);
static int fjes_remove(struct platform_device *);
static int fjes_sw_init(struct fjes_adapter *);
static void fjes_netdev_setup(struct net_device *);
static const struct acpi_device_id fjes_acpi_ids[] = {
{"PNP0C02", 0},
{"", 0},
@ -166,18 +170,108 @@ fjes_get_acpi_resource(struct acpi_resource *acpi_res, void *data)
return AE_OK;
}
static const struct net_device_ops fjes_netdev_ops = {
};
/* fjes_probe - Device Initialization Routine */
static int fjes_probe(struct platform_device *plat_dev)
{
struct fjes_adapter *adapter;
struct net_device *netdev;
struct resource *res;
struct fjes_hw *hw;
int err;
err = -ENOMEM;
netdev = alloc_netdev_mq(sizeof(struct fjes_adapter), "es%d",
NET_NAME_UNKNOWN, fjes_netdev_setup,
FJES_MAX_QUEUES);
if (!netdev)
goto err_out;
SET_NETDEV_DEV(netdev, &plat_dev->dev);
dev_set_drvdata(&plat_dev->dev, netdev);
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->plat_dev = plat_dev;
hw = &adapter->hw;
hw->back = adapter;
/* setup the private structure */
err = fjes_sw_init(adapter);
if (err)
goto err_free_netdev;
adapter->force_reset = false;
adapter->open_guard = false;
res = platform_get_resource(plat_dev, IORESOURCE_MEM, 0);
hw->hw_res.start = res->start;
hw->hw_res.size = res->end - res->start + 1;
hw->hw_res.irq = platform_get_irq(plat_dev, 0);
err = fjes_hw_init(&adapter->hw);
if (err)
goto err_free_netdev;
/* setup MAC address (02:00:00:00:00:[epid])*/
netdev->dev_addr[0] = 2;
netdev->dev_addr[1] = 0;
netdev->dev_addr[2] = 0;
netdev->dev_addr[3] = 0;
netdev->dev_addr[4] = 0;
netdev->dev_addr[5] = hw->my_epid; /* EPID */
err = register_netdev(netdev);
if (err)
goto err_hw_exit;
netif_carrier_off(netdev);
return 0;
err_hw_exit:
fjes_hw_exit(&adapter->hw);
err_free_netdev:
free_netdev(netdev);
err_out:
return err;
}
/* fjes_remove - Device Removal Routine */
static int fjes_remove(struct platform_device *plat_dev)
{
struct net_device *netdev = dev_get_drvdata(&plat_dev->dev);
struct fjes_adapter *adapter = netdev_priv(netdev);
struct fjes_hw *hw = &adapter->hw;
unregister_netdev(netdev);
fjes_hw_exit(hw);
free_netdev(netdev);
return 0;
}
static int fjes_sw_init(struct fjes_adapter *adapter)
{
return 0;
}
/* fjes_netdev_setup - netdevice initialization routine */
static void fjes_netdev_setup(struct net_device *netdev)
{
ether_setup(netdev);
netdev->watchdog_timeo = FJES_TX_RETRY_INTERVAL;
netdev->netdev_ops = &fjes_netdev_ops;
netdev->mtu = fjes_support_mtu[0];
netdev->flags |= IFF_BROADCAST;
netdev->features |= NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_FILTER;
}
/* fjes_init_module - Driver Registration Routine */
static int __init fjes_init_module(void)
{