1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2021 Intel Corporation. All rights rsvd. */ 3 4 #include <linux/module.h> 5 #include <linux/kernel.h> 6 #include <linux/highmem.h> 7 #include <linux/mm.h> 8 #include <linux/slab.h> 9 #include <linux/delay.h> 10 #include <linux/smp.h> 11 #include <uapi/linux/idxd.h> 12 #include <linux/idxd.h> 13 #include <linux/dmaengine.h> 14 #include "../../dma/idxd/idxd.h" 15 #include <linux/debugfs.h> 16 #include <crypto/internal/acompress.h> 17 #include "iaa_crypto.h" 18 #include "iaa_crypto_stats.h" 19 20 static u64 total_comp_calls; 21 static u64 total_decomp_calls; 22 static u64 total_sw_decomp_calls; 23 static u64 total_comp_bytes_out; 24 static u64 total_decomp_bytes_in; 25 static u64 total_completion_einval_errors; 26 static u64 total_completion_timeout_errors; 27 static u64 total_completion_comp_buf_overflow_errors; 28 29 static struct dentry *iaa_crypto_debugfs_root; 30 31 void update_total_comp_calls(void) 32 { 33 total_comp_calls++; 34 } 35 36 void update_total_comp_bytes_out(int n) 37 { 38 total_comp_bytes_out += n; 39 } 40 41 void update_total_decomp_calls(void) 42 { 43 total_decomp_calls++; 44 } 45 46 void update_total_sw_decomp_calls(void) 47 { 48 total_sw_decomp_calls++; 49 } 50 51 void update_total_decomp_bytes_in(int n) 52 { 53 total_decomp_bytes_in += n; 54 } 55 56 void update_completion_einval_errs(void) 57 { 58 total_completion_einval_errors++; 59 } 60 61 void update_completion_timeout_errs(void) 62 { 63 total_completion_timeout_errors++; 64 } 65 66 void update_completion_comp_buf_overflow_errs(void) 67 { 68 total_completion_comp_buf_overflow_errors++; 69 } 70 71 void update_wq_comp_calls(struct idxd_wq *idxd_wq) 72 { 73 struct iaa_wq *wq = idxd_wq_get_private(idxd_wq); 74 75 wq->comp_calls++; 76 wq->iaa_device->comp_calls++; 77 } 78 79 void update_wq_comp_bytes(struct idxd_wq *idxd_wq, int n) 80 { 81 struct iaa_wq *wq = idxd_wq_get_private(idxd_wq); 82 83 wq->comp_bytes += n; 84 wq->iaa_device->comp_bytes += n; 85 } 86 87 void update_wq_decomp_calls(struct idxd_wq *idxd_wq) 88 { 89 struct iaa_wq *wq = idxd_wq_get_private(idxd_wq); 90 91 wq->decomp_calls++; 92 wq->iaa_device->decomp_calls++; 93 } 94 95 void update_wq_decomp_bytes(struct idxd_wq *idxd_wq, int n) 96 { 97 struct iaa_wq *wq = idxd_wq_get_private(idxd_wq); 98 99 wq->decomp_bytes += n; 100 wq->iaa_device->decomp_bytes += n; 101 } 102 103 static void reset_iaa_crypto_stats(void) 104 { 105 total_comp_calls = 0; 106 total_decomp_calls = 0; 107 total_sw_decomp_calls = 0; 108 total_comp_bytes_out = 0; 109 total_decomp_bytes_in = 0; 110 total_completion_einval_errors = 0; 111 total_completion_timeout_errors = 0; 112 total_completion_comp_buf_overflow_errors = 0; 113 } 114 115 static void reset_wq_stats(struct iaa_wq *wq) 116 { 117 wq->comp_calls = 0; 118 wq->comp_bytes = 0; 119 wq->decomp_calls = 0; 120 wq->decomp_bytes = 0; 121 } 122 123 static void reset_device_stats(struct iaa_device *iaa_device) 124 { 125 struct iaa_wq *iaa_wq; 126 127 iaa_device->comp_calls = 0; 128 iaa_device->comp_bytes = 0; 129 iaa_device->decomp_calls = 0; 130 iaa_device->decomp_bytes = 0; 131 132 list_for_each_entry(iaa_wq, &iaa_device->wqs, list) 133 reset_wq_stats(iaa_wq); 134 } 135 136 static void wq_show(struct seq_file *m, struct iaa_wq *iaa_wq) 137 { 138 seq_printf(m, " name: %s\n", iaa_wq->wq->name); 139 seq_printf(m, " comp_calls: %llu\n", iaa_wq->comp_calls); 140 seq_printf(m, " comp_bytes: %llu\n", iaa_wq->comp_bytes); 141 seq_printf(m, " decomp_calls: %llu\n", iaa_wq->decomp_calls); 142 seq_printf(m, " decomp_bytes: %llu\n\n", iaa_wq->decomp_bytes); 143 } 144 145 static void device_stats_show(struct seq_file *m, struct iaa_device *iaa_device) 146 { 147 struct iaa_wq *iaa_wq; 148 149 seq_puts(m, "iaa device:\n"); 150 seq_printf(m, " id: %d\n", iaa_device->idxd->id); 151 seq_printf(m, " n_wqs: %d\n", iaa_device->n_wq); 152 seq_printf(m, " comp_calls: %llu\n", iaa_device->comp_calls); 153 seq_printf(m, " comp_bytes: %llu\n", iaa_device->comp_bytes); 154 seq_printf(m, " decomp_calls: %llu\n", iaa_device->decomp_calls); 155 seq_printf(m, " decomp_bytes: %llu\n", iaa_device->decomp_bytes); 156 seq_puts(m, " wqs:\n"); 157 158 list_for_each_entry(iaa_wq, &iaa_device->wqs, list) 159 wq_show(m, iaa_wq); 160 } 161 162 static void global_stats_show(struct seq_file *m) 163 { 164 seq_puts(m, "global stats:\n"); 165 seq_printf(m, " total_comp_calls: %llu\n", total_comp_calls); 166 seq_printf(m, " total_decomp_calls: %llu\n", total_decomp_calls); 167 seq_printf(m, " total_sw_decomp_calls: %llu\n", total_sw_decomp_calls); 168 seq_printf(m, " total_comp_bytes_out: %llu\n", total_comp_bytes_out); 169 seq_printf(m, " total_decomp_bytes_in: %llu\n", total_decomp_bytes_in); 170 seq_printf(m, " total_completion_einval_errors: %llu\n", 171 total_completion_einval_errors); 172 seq_printf(m, " total_completion_timeout_errors: %llu\n", 173 total_completion_timeout_errors); 174 seq_printf(m, " total_completion_comp_buf_overflow_errors: %llu\n\n", 175 total_completion_comp_buf_overflow_errors); 176 } 177 178 static int wq_stats_show(struct seq_file *m, void *v) 179 { 180 struct iaa_device *iaa_device; 181 182 mutex_lock(&iaa_devices_lock); 183 184 global_stats_show(m); 185 186 list_for_each_entry(iaa_device, &iaa_devices, list) 187 device_stats_show(m, iaa_device); 188 189 mutex_unlock(&iaa_devices_lock); 190 191 return 0; 192 } 193 194 static int iaa_crypto_stats_reset(void *data, u64 value) 195 { 196 struct iaa_device *iaa_device; 197 198 reset_iaa_crypto_stats(); 199 200 mutex_lock(&iaa_devices_lock); 201 202 list_for_each_entry(iaa_device, &iaa_devices, list) 203 reset_device_stats(iaa_device); 204 205 mutex_unlock(&iaa_devices_lock); 206 207 return 0; 208 } 209 210 static int wq_stats_open(struct inode *inode, struct file *file) 211 { 212 return single_open(file, wq_stats_show, file); 213 } 214 215 static const struct file_operations wq_stats_fops = { 216 .open = wq_stats_open, 217 .read = seq_read, 218 .llseek = seq_lseek, 219 .release = single_release, 220 }; 221 222 DEFINE_DEBUGFS_ATTRIBUTE(wq_stats_reset_fops, NULL, iaa_crypto_stats_reset, "%llu\n"); 223 224 int __init iaa_crypto_debugfs_init(void) 225 { 226 if (!debugfs_initialized()) 227 return -ENODEV; 228 229 iaa_crypto_debugfs_root = debugfs_create_dir("iaa_crypto", NULL); 230 231 debugfs_create_u64("total_comp_calls", 0644, 232 iaa_crypto_debugfs_root, &total_comp_calls); 233 debugfs_create_u64("total_decomp_calls", 0644, 234 iaa_crypto_debugfs_root, &total_decomp_calls); 235 debugfs_create_u64("total_sw_decomp_calls", 0644, 236 iaa_crypto_debugfs_root, &total_sw_decomp_calls); 237 debugfs_create_u64("total_comp_bytes_out", 0644, 238 iaa_crypto_debugfs_root, &total_comp_bytes_out); 239 debugfs_create_u64("total_decomp_bytes_in", 0644, 240 iaa_crypto_debugfs_root, &total_decomp_bytes_in); 241 debugfs_create_file("wq_stats", 0644, iaa_crypto_debugfs_root, NULL, 242 &wq_stats_fops); 243 debugfs_create_file("stats_reset", 0644, iaa_crypto_debugfs_root, NULL, 244 &wq_stats_reset_fops); 245 246 return 0; 247 } 248 249 void __exit iaa_crypto_debugfs_cleanup(void) 250 { 251 debugfs_remove_recursive(iaa_crypto_debugfs_root); 252 } 253 254 MODULE_LICENSE("GPL"); 255