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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * FUJITSU Extended Socket Network Device driver4 * Copyright (c) 2015-2016 FUJITSU LIMITED5 */6 7/* debugfs support for fjes driver */8 9#ifdef CONFIG_DEBUG_FS10 11#include <linux/debugfs.h>12#include <linux/seq_file.h>13#include <linux/platform_device.h>14 15#include "fjes.h"16 17static struct dentry *fjes_debug_root;18 19static const char * const ep_status_string[] = {20 "unshared",21 "shared",22 "waiting",23 "complete",24};25 26static int fjes_dbg_status_show(struct seq_file *m, void *v)27{28 struct fjes_adapter *adapter = m->private;29 struct fjes_hw *hw = &adapter->hw;30 int max_epid = hw->max_epid;31 int my_epid = hw->my_epid;32 int epidx;33 34 seq_puts(m, "EPID\tSTATUS SAME_ZONE CONNECTED\n");35 for (epidx = 0; epidx < max_epid; epidx++) {36 if (epidx == my_epid) {37 seq_printf(m, "ep%d\t%-16c %-16c %-16c\n",38 epidx, '-', '-', '-');39 } else {40 seq_printf(m, "ep%d\t%-16s %-16c %-16c\n",41 epidx,42 ep_status_string[fjes_hw_get_partner_ep_status(hw, epidx)],43 fjes_hw_epid_is_same_zone(hw, epidx) ? 'Y' : 'N',44 fjes_hw_epid_is_shared(hw->hw_info.share, epidx) ? 'Y' : 'N');45 }46 }47 48 return 0;49}50DEFINE_SHOW_ATTRIBUTE(fjes_dbg_status);51 52void fjes_dbg_adapter_init(struct fjes_adapter *adapter)53{54 const char *name = dev_name(&adapter->plat_dev->dev);55 56 adapter->dbg_adapter = debugfs_create_dir(name, fjes_debug_root);57 58 debugfs_create_file("status", 0444, adapter->dbg_adapter, adapter,59 &fjes_dbg_status_fops);60}61 62void fjes_dbg_adapter_exit(struct fjes_adapter *adapter)63{64 debugfs_remove_recursive(adapter->dbg_adapter);65 adapter->dbg_adapter = NULL;66}67 68void fjes_dbg_init(void)69{70 fjes_debug_root = debugfs_create_dir(fjes_driver_name, NULL);71}72 73void fjes_dbg_exit(void)74{75 debugfs_remove_recursive(fjes_debug_root);76 fjes_debug_root = NULL;77}78 79#endif /* CONFIG_DEBUG_FS */80