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// SPDX-License-Identifier: GPL-2.0-only
/*
* FUJITSU Extended Socket Network Device driver
* Copyright (c) 2015-2016 FUJITSU LIMITED
*/
/* 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;
}
DEFINE_SHOW_ATTRIBUTE(fjes_dbg_status);
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 */
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