mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 13:53:54 +07:00
c753119e6d
This patch adds debugfs entry to show EP status information. You can get each EP's status information like the following: # cat /sys/kernel/debug/fjes/fjes.0/status EPID STATUS SAME_ZONE CONNECTED ep0 shared Y Y ep1 - - - ep2 unshared N N ep3 unshared N N ep4 unshared N N ep5 unshared N N ep6 unshared N N ep7 unshared N N Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*
|
|
* 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 */
|