diff options
| -rw-r--r-- | drivers/net/fjes/Makefile | 2 | ||||
| -rw-r--r-- | drivers/net/fjes/fjes.h | 16 | ||||
| -rw-r--r-- | drivers/net/fjes/fjes_debugfs.c | 117 | ||||
| -rw-r--r-- | drivers/net/fjes/fjes_main.c | 12 |
4 files changed, 145 insertions, 2 deletions
diff --git a/drivers/net/fjes/Makefile b/drivers/net/fjes/Makefile index 6705d1b523d5..bc47b354c104 100644 --- a/drivers/net/fjes/Makefile +++ b/drivers/net/fjes/Makefile @@ -27,4 +27,4 @@ obj-$(CONFIG_FUJITSU_ES) += fjes.o -fjes-objs := fjes_main.o fjes_hw.o fjes_ethtool.o fjes_trace.o +fjes-objs := fjes_main.o fjes_hw.o fjes_ethtool.o fjes_trace.o fjes_debugfs.o diff --git a/drivers/net/fjes/fjes.h b/drivers/net/fjes/fjes.h index a592fe21c698..0372be3ad8e3 100644 --- a/drivers/net/fjes/fjes.h +++ b/drivers/net/fjes/fjes.h @@ -66,6 +66,10 @@ struct fjes_adapter { bool interrupt_watch_enable; struct fjes_hw hw; + +#ifdef CONFIG_DEBUG_FS + struct dentry *dbg_adapter; +#endif }; extern char fjes_driver_name[]; @@ -74,4 +78,16 @@ extern const u32 fjes_support_mtu[]; void fjes_set_ethtool_ops(struct net_device *); +#ifdef CONFIG_DEBUG_FS +void fjes_dbg_adapter_init(struct fjes_adapter *adapter); +void fjes_dbg_adapter_exit(struct fjes_adapter *adapter); +void fjes_dbg_init(void); +void fjes_dbg_exit(void); +#else +static inline void fjes_dbg_adapter_init(struct fjes_adapter *adapter) {} +static inline void fjes_dbg_adapter_exit(struct fjes_adapter *adapter) {} +static inline void fjes_dbg_init(void) {} +static inline void fjes_dbg_exit(void) {} +#endif /* CONFIG_DEBUG_FS */ + #endif /* FJES_H_ */ diff --git a/drivers/net/fjes/fjes_debugfs.c b/drivers/net/fjes/fjes_debugfs.c new file mode 100644 index 000000000000..30052ebd52bf --- /dev/null +++ b/drivers/net/fjes/fjes_debugfs.c @@ -0,0 +1,117 @@ +/* + * FUJITSU Extended Socket Network Device driver + * Copyright (c) 2015-2016 FUJITSU LIMITED + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, see <http://www.gnu.org/licenses/>. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + */ + +/* debugfs support for fjes driver */ + +#ifdef CONFIG_DEBUG_FS + +#include <linux/debugfs.h> +#include <linux/seq_file.h> +#include <linux/platform_device.h> + +#include "fjes.h" + +static struct dentry *fjes_debug_root; + +static const char * const ep_status_string[] = { + "unshared", + "shared", + "waiting", + "complete", +}; + +static int fjes_dbg_status_show(struct seq_file *m, void *v) +{ + struct fjes_adapter *adapter = m->private; + struct fjes_hw *hw = &adapter->hw; + int max_epid = hw->max_epid; + int my_epid = hw->my_epid; + int epidx; + + seq_puts(m, "EPID\tSTATUS SAME_ZONE CONNECTED\n"); + for (epidx = 0; epidx < max_epid; epidx++) { + if (epidx == my_epid) { + seq_printf(m, "ep%d\t%-16c %-16c %-16c\n", + epidx, '-', '-', '-'); + } else { + seq_printf(m, "ep%d\t%-16s %-16c %-16c\n", + epidx, + ep_status_string[fjes_hw_get_partner_ep_status(hw, epidx)], + fjes_hw_epid_is_same_zone(hw, epidx) ? 'Y' : 'N', + fjes_hw_epid_is_shared(hw->hw_info.share, epidx) ? 'Y' : 'N'); + } + } + + return 0; +} + +static int fjes_dbg_status_open(struct inode *inode, struct file *file) +{ + return single_open(file, fjes_dbg_status_show, inode->i_private); +} + +static const struct file_operations fjes_dbg_status_fops = { + .owner = THIS_MODULE, + .open = fjes_dbg_status_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +void fjes_dbg_adapter_init(struct fjes_adapter *adapter) +{ + const char *name = dev_name(&adapter->plat_dev->dev); + struct dentry *pfile; + + adapter->dbg_adapter = debugfs_create_dir(name, fjes_debug_root); + if (!adapter->dbg_adapter) { + dev_err(&adapter->plat_dev->dev, + "debugfs entry for %s failed\n", name); + return; + } + + pfile = debugfs_create_file("status", 0444, adapter->dbg_adapter, + adapter, &fjes_dbg_status_fops); + if (!pfile) + dev_err(&adapter->plat_dev->dev, + "debugfs status for %s failed\n", name); +} + +void fjes_dbg_adapter_exit(struct fjes_adapter *adapter) +{ + debugfs_remove_recursive(adapter->dbg_adapter); + adapter->dbg_adapter = NULL; +} + +void fjes_dbg_init(void) +{ + fjes_debug_root = debugfs_create_dir(fjes_driver_name, NULL); + if (!fjes_debug_root) + pr_info("init of debugfs failed\n"); +} + +void fjes_dbg_exit(void) +{ + debugfs_remove_recursive(fjes_debug_root); + fjes_debug_root = NULL; +} + +#endif /* CONFIG_DEBUG_FS */ diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index 4c135ae11978..359e7a5ca4c6 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -1257,6 +1257,8 @@ static int fjes_probe(struct platform_device *plat_dev) netif_carrier_off(netdev); + fjes_dbg_adapter_init(adapter); + return 0; err_hw_exit: @@ -1274,6 +1276,8 @@ static int fjes_remove(struct platform_device *plat_dev) struct fjes_adapter *adapter = netdev_priv(netdev); struct fjes_hw *hw = &adapter->hw; + fjes_dbg_adapter_exit(adapter); + cancel_delayed_work_sync(&adapter->interrupt_watch_task); cancel_work_sync(&adapter->unshare_watch_task); cancel_work_sync(&adapter->raise_intr_rxdata_task); @@ -1478,9 +1482,13 @@ static int __init fjes_init_module(void) pr_info("%s - version %s - %s\n", fjes_driver_string, fjes_driver_version, fjes_copyright); + fjes_dbg_init(); + result = platform_driver_register(&fjes_driver); - if (result < 0) + if (result < 0) { + fjes_dbg_exit(); return result; + } result = acpi_bus_register_driver(&fjes_acpi_driver); if (result < 0) @@ -1490,6 +1498,7 @@ static int __init fjes_init_module(void) fail_acpi_driver: platform_driver_unregister(&fjes_driver); + fjes_dbg_exit(); return result; } @@ -1500,6 +1509,7 @@ static void __exit fjes_exit_module(void) { acpi_bus_unregister_driver(&fjes_acpi_driver); platform_driver_unregister(&fjes_driver); + fjes_dbg_exit(); } module_exit(fjes_exit_module); |