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Message-Id: <1437610236-12490-4-git-send-email-izumi.taku@jp.fujitsu.com>
Date: Thu, 23 Jul 2015 09:10:18 +0900
From: Taku Izumi <izumi.taku@...fujitsu.com>
To: netdev@...r.kernel.org, davem@...emloft.net
Cc: platform-driver-x86@...r.kernel.org, dvhart@...radead.org,
rkhan@...hat.com, alexander.h.duyck@...hat.com,
linux-acpi@...r.kernel.org, joe@...ches.com,
sergei.shtylyov@...entembedded.com, stephen@...workplumber.org,
yasu.isimatu@...il.com, Taku Izumi <izumi.taku@...fujitsu.com>
Subject: [PATCH v2.1 04/22] 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@...fujitsu.com>
---
drivers/net/fjes/fjes.h | 25 ++++++++++++
drivers/net/fjes/fjes_main.c | 95 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 120 insertions(+)
diff --git a/drivers/net/fjes/fjes.h b/drivers/net/fjes/fjes.h
index 15ded96..54bc189 100644
--- a/drivers/net/fjes/fjes.h
+++ b/drivers/net/fjes/fjes.h
@@ -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[];
diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c
index ab4d20c..7695b84 100644
--- a/drivers/net/fjes/fjes_main.c
+++ b/drivers/net/fjes/fjes_main.c
@@ -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 +170,109 @@ 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 net_device *netdev;
+ struct fjes_adapter *adapter;
+ struct fjes_hw *hw;
+ struct resource *res;
+ 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_alloc_netdev;
+
+ 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_sw_init;
+
+ 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_hw_init;
+
+ /* 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_register;
+
+ netif_carrier_off(netdev);
+
return 0;
+
+err_register:
+ fjes_hw_exit(&adapter->hw);
+err_hw_init:
+err_sw_init:
+ free_netdev(netdev);
+err_alloc_netdev:
+ 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)
{
--
1.8.3.1
--
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