1 /* 2 * FUJITSU Extended Socket Network Device driver 3 * Copyright (c) 2015-2016 FUJITSU LIMITED 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms and conditions of the GNU General Public License, 7 * version 2, as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, see <http://www.gnu.org/licenses/>. 16 * 17 * The full GNU General Public License is included in this distribution in 18 * the file called "COPYING". 19 * 20 */ 21 22 /* debugfs support for fjes driver */ 23 24 #ifdef CONFIG_DEBUG_FS 25 26 #include <linux/debugfs.h> 27 #include <linux/seq_file.h> 28 #include <linux/platform_device.h> 29 30 #include "fjes.h" 31 32 static struct dentry *fjes_debug_root; 33 34 static const char * const ep_status_string[] = { 35 "unshared", 36 "shared", 37 "waiting", 38 "complete", 39 }; 40 41 static int fjes_dbg_status_show(struct seq_file *m, void *v) 42 { 43 struct fjes_adapter *adapter = m->private; 44 struct fjes_hw *hw = &adapter->hw; 45 int max_epid = hw->max_epid; 46 int my_epid = hw->my_epid; 47 int epidx; 48 49 seq_puts(m, "EPID\tSTATUS SAME_ZONE CONNECTED\n"); 50 for (epidx = 0; epidx < max_epid; epidx++) { 51 if (epidx == my_epid) { 52 seq_printf(m, "ep%d\t%-16c %-16c %-16c\n", 53 epidx, '-', '-', '-'); 54 } else { 55 seq_printf(m, "ep%d\t%-16s %-16c %-16c\n", 56 epidx, 57 ep_status_string[fjes_hw_get_partner_ep_status(hw, epidx)], 58 fjes_hw_epid_is_same_zone(hw, epidx) ? 'Y' : 'N', 59 fjes_hw_epid_is_shared(hw->hw_info.share, epidx) ? 'Y' : 'N'); 60 } 61 } 62 63 return 0; 64 } 65 DEFINE_SHOW_ATTRIBUTE(fjes_dbg_status); 66 67 void fjes_dbg_adapter_init(struct fjes_adapter *adapter) 68 { 69 const char *name = dev_name(&adapter->plat_dev->dev); 70 struct dentry *pfile; 71 72 adapter->dbg_adapter = debugfs_create_dir(name, fjes_debug_root); 73 if (!adapter->dbg_adapter) { 74 dev_err(&adapter->plat_dev->dev, 75 "debugfs entry for %s failed\n", name); 76 return; 77 } 78 79 pfile = debugfs_create_file("status", 0444, adapter->dbg_adapter, 80 adapter, &fjes_dbg_status_fops); 81 if (!pfile) 82 dev_err(&adapter->plat_dev->dev, 83 "debugfs status for %s failed\n", name); 84 } 85 86 void fjes_dbg_adapter_exit(struct fjes_adapter *adapter) 87 { 88 debugfs_remove_recursive(adapter->dbg_adapter); 89 adapter->dbg_adapter = NULL; 90 } 91 92 void fjes_dbg_init(void) 93 { 94 fjes_debug_root = debugfs_create_dir(fjes_driver_name, NULL); 95 if (!fjes_debug_root) 96 pr_info("init of debugfs failed\n"); 97 } 98 99 void fjes_dbg_exit(void) 100 { 101 debugfs_remove_recursive(fjes_debug_root); 102 fjes_debug_root = NULL; 103 } 104 105 #endif /* CONFIG_DEBUG_FS */ 106