1 // SPDX-License-Identifier: (GPL-2.0 OR MIT) 2 /* Statistics for Ocelot switch family 3 * 4 * Copyright (c) 2017 Microsemi Corporation 5 * Copyright 2022 NXP 6 */ 7 #include <linux/ethtool_netlink.h> 8 #include <linux/spinlock.h> 9 #include <linux/mutex.h> 10 #include <linux/workqueue.h> 11 #include "ocelot.h" 12 13 enum ocelot_stat { 14 OCELOT_STAT_RX_OCTETS, 15 OCELOT_STAT_RX_UNICAST, 16 OCELOT_STAT_RX_MULTICAST, 17 OCELOT_STAT_RX_BROADCAST, 18 OCELOT_STAT_RX_SHORTS, 19 OCELOT_STAT_RX_FRAGMENTS, 20 OCELOT_STAT_RX_JABBERS, 21 OCELOT_STAT_RX_CRC_ALIGN_ERRS, 22 OCELOT_STAT_RX_SYM_ERRS, 23 OCELOT_STAT_RX_64, 24 OCELOT_STAT_RX_65_127, 25 OCELOT_STAT_RX_128_255, 26 OCELOT_STAT_RX_256_511, 27 OCELOT_STAT_RX_512_1023, 28 OCELOT_STAT_RX_1024_1526, 29 OCELOT_STAT_RX_1527_MAX, 30 OCELOT_STAT_RX_PAUSE, 31 OCELOT_STAT_RX_CONTROL, 32 OCELOT_STAT_RX_LONGS, 33 OCELOT_STAT_RX_CLASSIFIED_DROPS, 34 OCELOT_STAT_RX_RED_PRIO_0, 35 OCELOT_STAT_RX_RED_PRIO_1, 36 OCELOT_STAT_RX_RED_PRIO_2, 37 OCELOT_STAT_RX_RED_PRIO_3, 38 OCELOT_STAT_RX_RED_PRIO_4, 39 OCELOT_STAT_RX_RED_PRIO_5, 40 OCELOT_STAT_RX_RED_PRIO_6, 41 OCELOT_STAT_RX_RED_PRIO_7, 42 OCELOT_STAT_RX_YELLOW_PRIO_0, 43 OCELOT_STAT_RX_YELLOW_PRIO_1, 44 OCELOT_STAT_RX_YELLOW_PRIO_2, 45 OCELOT_STAT_RX_YELLOW_PRIO_3, 46 OCELOT_STAT_RX_YELLOW_PRIO_4, 47 OCELOT_STAT_RX_YELLOW_PRIO_5, 48 OCELOT_STAT_RX_YELLOW_PRIO_6, 49 OCELOT_STAT_RX_YELLOW_PRIO_7, 50 OCELOT_STAT_RX_GREEN_PRIO_0, 51 OCELOT_STAT_RX_GREEN_PRIO_1, 52 OCELOT_STAT_RX_GREEN_PRIO_2, 53 OCELOT_STAT_RX_GREEN_PRIO_3, 54 OCELOT_STAT_RX_GREEN_PRIO_4, 55 OCELOT_STAT_RX_GREEN_PRIO_5, 56 OCELOT_STAT_RX_GREEN_PRIO_6, 57 OCELOT_STAT_RX_GREEN_PRIO_7, 58 OCELOT_STAT_RX_ASSEMBLY_ERRS, 59 OCELOT_STAT_RX_SMD_ERRS, 60 OCELOT_STAT_RX_ASSEMBLY_OK, 61 OCELOT_STAT_RX_MERGE_FRAGMENTS, 62 OCELOT_STAT_RX_PMAC_OCTETS, 63 OCELOT_STAT_RX_PMAC_UNICAST, 64 OCELOT_STAT_RX_PMAC_MULTICAST, 65 OCELOT_STAT_RX_PMAC_BROADCAST, 66 OCELOT_STAT_RX_PMAC_SHORTS, 67 OCELOT_STAT_RX_PMAC_FRAGMENTS, 68 OCELOT_STAT_RX_PMAC_JABBERS, 69 OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS, 70 OCELOT_STAT_RX_PMAC_SYM_ERRS, 71 OCELOT_STAT_RX_PMAC_64, 72 OCELOT_STAT_RX_PMAC_65_127, 73 OCELOT_STAT_RX_PMAC_128_255, 74 OCELOT_STAT_RX_PMAC_256_511, 75 OCELOT_STAT_RX_PMAC_512_1023, 76 OCELOT_STAT_RX_PMAC_1024_1526, 77 OCELOT_STAT_RX_PMAC_1527_MAX, 78 OCELOT_STAT_RX_PMAC_PAUSE, 79 OCELOT_STAT_RX_PMAC_CONTROL, 80 OCELOT_STAT_RX_PMAC_LONGS, 81 OCELOT_STAT_TX_OCTETS, 82 OCELOT_STAT_TX_UNICAST, 83 OCELOT_STAT_TX_MULTICAST, 84 OCELOT_STAT_TX_BROADCAST, 85 OCELOT_STAT_TX_COLLISION, 86 OCELOT_STAT_TX_DROPS, 87 OCELOT_STAT_TX_PAUSE, 88 OCELOT_STAT_TX_64, 89 OCELOT_STAT_TX_65_127, 90 OCELOT_STAT_TX_128_255, 91 OCELOT_STAT_TX_256_511, 92 OCELOT_STAT_TX_512_1023, 93 OCELOT_STAT_TX_1024_1526, 94 OCELOT_STAT_TX_1527_MAX, 95 OCELOT_STAT_TX_YELLOW_PRIO_0, 96 OCELOT_STAT_TX_YELLOW_PRIO_1, 97 OCELOT_STAT_TX_YELLOW_PRIO_2, 98 OCELOT_STAT_TX_YELLOW_PRIO_3, 99 OCELOT_STAT_TX_YELLOW_PRIO_4, 100 OCELOT_STAT_TX_YELLOW_PRIO_5, 101 OCELOT_STAT_TX_YELLOW_PRIO_6, 102 OCELOT_STAT_TX_YELLOW_PRIO_7, 103 OCELOT_STAT_TX_GREEN_PRIO_0, 104 OCELOT_STAT_TX_GREEN_PRIO_1, 105 OCELOT_STAT_TX_GREEN_PRIO_2, 106 OCELOT_STAT_TX_GREEN_PRIO_3, 107 OCELOT_STAT_TX_GREEN_PRIO_4, 108 OCELOT_STAT_TX_GREEN_PRIO_5, 109 OCELOT_STAT_TX_GREEN_PRIO_6, 110 OCELOT_STAT_TX_GREEN_PRIO_7, 111 OCELOT_STAT_TX_AGED, 112 OCELOT_STAT_TX_MM_HOLD, 113 OCELOT_STAT_TX_MERGE_FRAGMENTS, 114 OCELOT_STAT_TX_PMAC_OCTETS, 115 OCELOT_STAT_TX_PMAC_UNICAST, 116 OCELOT_STAT_TX_PMAC_MULTICAST, 117 OCELOT_STAT_TX_PMAC_BROADCAST, 118 OCELOT_STAT_TX_PMAC_PAUSE, 119 OCELOT_STAT_TX_PMAC_64, 120 OCELOT_STAT_TX_PMAC_65_127, 121 OCELOT_STAT_TX_PMAC_128_255, 122 OCELOT_STAT_TX_PMAC_256_511, 123 OCELOT_STAT_TX_PMAC_512_1023, 124 OCELOT_STAT_TX_PMAC_1024_1526, 125 OCELOT_STAT_TX_PMAC_1527_MAX, 126 OCELOT_STAT_DROP_LOCAL, 127 OCELOT_STAT_DROP_TAIL, 128 OCELOT_STAT_DROP_YELLOW_PRIO_0, 129 OCELOT_STAT_DROP_YELLOW_PRIO_1, 130 OCELOT_STAT_DROP_YELLOW_PRIO_2, 131 OCELOT_STAT_DROP_YELLOW_PRIO_3, 132 OCELOT_STAT_DROP_YELLOW_PRIO_4, 133 OCELOT_STAT_DROP_YELLOW_PRIO_5, 134 OCELOT_STAT_DROP_YELLOW_PRIO_6, 135 OCELOT_STAT_DROP_YELLOW_PRIO_7, 136 OCELOT_STAT_DROP_GREEN_PRIO_0, 137 OCELOT_STAT_DROP_GREEN_PRIO_1, 138 OCELOT_STAT_DROP_GREEN_PRIO_2, 139 OCELOT_STAT_DROP_GREEN_PRIO_3, 140 OCELOT_STAT_DROP_GREEN_PRIO_4, 141 OCELOT_STAT_DROP_GREEN_PRIO_5, 142 OCELOT_STAT_DROP_GREEN_PRIO_6, 143 OCELOT_STAT_DROP_GREEN_PRIO_7, 144 OCELOT_NUM_STATS, 145 }; 146 147 struct ocelot_stat_layout { 148 u32 reg; 149 char name[ETH_GSTRING_LEN]; 150 }; 151 152 /* 32-bit counter checked for wraparound by ocelot_port_update_stats() 153 * and copied to ocelot->stats. 154 */ 155 #define OCELOT_STAT(kind) \ 156 [OCELOT_STAT_ ## kind] = { .reg = SYS_COUNT_ ## kind } 157 /* Same as above, except also exported to ethtool -S. Standard counters should 158 * only be exposed to more specific interfaces rather than by their string name. 159 */ 160 #define OCELOT_STAT_ETHTOOL(kind, ethtool_name) \ 161 [OCELOT_STAT_ ## kind] = { .reg = SYS_COUNT_ ## kind, .name = ethtool_name } 162 163 #define OCELOT_COMMON_STATS \ 164 OCELOT_STAT_ETHTOOL(RX_OCTETS, "rx_octets"), \ 165 OCELOT_STAT_ETHTOOL(RX_UNICAST, "rx_unicast"), \ 166 OCELOT_STAT_ETHTOOL(RX_MULTICAST, "rx_multicast"), \ 167 OCELOT_STAT_ETHTOOL(RX_BROADCAST, "rx_broadcast"), \ 168 OCELOT_STAT_ETHTOOL(RX_SHORTS, "rx_shorts"), \ 169 OCELOT_STAT_ETHTOOL(RX_FRAGMENTS, "rx_fragments"), \ 170 OCELOT_STAT_ETHTOOL(RX_JABBERS, "rx_jabbers"), \ 171 OCELOT_STAT_ETHTOOL(RX_CRC_ALIGN_ERRS, "rx_crc_align_errs"), \ 172 OCELOT_STAT_ETHTOOL(RX_SYM_ERRS, "rx_sym_errs"), \ 173 OCELOT_STAT_ETHTOOL(RX_64, "rx_frames_below_65_octets"), \ 174 OCELOT_STAT_ETHTOOL(RX_65_127, "rx_frames_65_to_127_octets"), \ 175 OCELOT_STAT_ETHTOOL(RX_128_255, "rx_frames_128_to_255_octets"), \ 176 OCELOT_STAT_ETHTOOL(RX_256_511, "rx_frames_256_to_511_octets"), \ 177 OCELOT_STAT_ETHTOOL(RX_512_1023, "rx_frames_512_to_1023_octets"), \ 178 OCELOT_STAT_ETHTOOL(RX_1024_1526, "rx_frames_1024_to_1526_octets"), \ 179 OCELOT_STAT_ETHTOOL(RX_1527_MAX, "rx_frames_over_1526_octets"), \ 180 OCELOT_STAT_ETHTOOL(RX_PAUSE, "rx_pause"), \ 181 OCELOT_STAT_ETHTOOL(RX_CONTROL, "rx_control"), \ 182 OCELOT_STAT_ETHTOOL(RX_LONGS, "rx_longs"), \ 183 OCELOT_STAT_ETHTOOL(RX_CLASSIFIED_DROPS, "rx_classified_drops"), \ 184 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_0, "rx_red_prio_0"), \ 185 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_1, "rx_red_prio_1"), \ 186 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_2, "rx_red_prio_2"), \ 187 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_3, "rx_red_prio_3"), \ 188 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_4, "rx_red_prio_4"), \ 189 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_5, "rx_red_prio_5"), \ 190 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_6, "rx_red_prio_6"), \ 191 OCELOT_STAT_ETHTOOL(RX_RED_PRIO_7, "rx_red_prio_7"), \ 192 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_0, "rx_yellow_prio_0"), \ 193 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_1, "rx_yellow_prio_1"), \ 194 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_2, "rx_yellow_prio_2"), \ 195 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_3, "rx_yellow_prio_3"), \ 196 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_4, "rx_yellow_prio_4"), \ 197 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_5, "rx_yellow_prio_5"), \ 198 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_6, "rx_yellow_prio_6"), \ 199 OCELOT_STAT_ETHTOOL(RX_YELLOW_PRIO_7, "rx_yellow_prio_7"), \ 200 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_0, "rx_green_prio_0"), \ 201 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_1, "rx_green_prio_1"), \ 202 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_2, "rx_green_prio_2"), \ 203 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_3, "rx_green_prio_3"), \ 204 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_4, "rx_green_prio_4"), \ 205 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_5, "rx_green_prio_5"), \ 206 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_6, "rx_green_prio_6"), \ 207 OCELOT_STAT_ETHTOOL(RX_GREEN_PRIO_7, "rx_green_prio_7"), \ 208 OCELOT_STAT_ETHTOOL(TX_OCTETS, "tx_octets"), \ 209 OCELOT_STAT_ETHTOOL(TX_UNICAST, "tx_unicast"), \ 210 OCELOT_STAT_ETHTOOL(TX_MULTICAST, "tx_multicast"), \ 211 OCELOT_STAT_ETHTOOL(TX_BROADCAST, "tx_broadcast"), \ 212 OCELOT_STAT_ETHTOOL(TX_COLLISION, "tx_collision"), \ 213 OCELOT_STAT_ETHTOOL(TX_DROPS, "tx_drops"), \ 214 OCELOT_STAT_ETHTOOL(TX_PAUSE, "tx_pause"), \ 215 OCELOT_STAT_ETHTOOL(TX_64, "tx_frames_below_65_octets"), \ 216 OCELOT_STAT_ETHTOOL(TX_65_127, "tx_frames_65_to_127_octets"), \ 217 OCELOT_STAT_ETHTOOL(TX_128_255, "tx_frames_128_255_octets"), \ 218 OCELOT_STAT_ETHTOOL(TX_256_511, "tx_frames_256_511_octets"), \ 219 OCELOT_STAT_ETHTOOL(TX_512_1023, "tx_frames_512_1023_octets"), \ 220 OCELOT_STAT_ETHTOOL(TX_1024_1526, "tx_frames_1024_1526_octets"), \ 221 OCELOT_STAT_ETHTOOL(TX_1527_MAX, "tx_frames_over_1526_octets"), \ 222 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_0, "tx_yellow_prio_0"), \ 223 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_1, "tx_yellow_prio_1"), \ 224 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_2, "tx_yellow_prio_2"), \ 225 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_3, "tx_yellow_prio_3"), \ 226 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_4, "tx_yellow_prio_4"), \ 227 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_5, "tx_yellow_prio_5"), \ 228 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_6, "tx_yellow_prio_6"), \ 229 OCELOT_STAT_ETHTOOL(TX_YELLOW_PRIO_7, "tx_yellow_prio_7"), \ 230 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_0, "tx_green_prio_0"), \ 231 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_1, "tx_green_prio_1"), \ 232 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_2, "tx_green_prio_2"), \ 233 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_3, "tx_green_prio_3"), \ 234 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_4, "tx_green_prio_4"), \ 235 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_5, "tx_green_prio_5"), \ 236 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_6, "tx_green_prio_6"), \ 237 OCELOT_STAT_ETHTOOL(TX_GREEN_PRIO_7, "tx_green_prio_7"), \ 238 OCELOT_STAT_ETHTOOL(TX_AGED, "tx_aged"), \ 239 OCELOT_STAT_ETHTOOL(DROP_LOCAL, "drop_local"), \ 240 OCELOT_STAT_ETHTOOL(DROP_TAIL, "drop_tail"), \ 241 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_0, "drop_yellow_prio_0"), \ 242 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_1, "drop_yellow_prio_1"), \ 243 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_2, "drop_yellow_prio_2"), \ 244 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_3, "drop_yellow_prio_3"), \ 245 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_4, "drop_yellow_prio_4"), \ 246 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_5, "drop_yellow_prio_5"), \ 247 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_6, "drop_yellow_prio_6"), \ 248 OCELOT_STAT_ETHTOOL(DROP_YELLOW_PRIO_7, "drop_yellow_prio_7"), \ 249 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_0, "drop_green_prio_0"), \ 250 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_1, "drop_green_prio_1"), \ 251 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_2, "drop_green_prio_2"), \ 252 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_3, "drop_green_prio_3"), \ 253 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_4, "drop_green_prio_4"), \ 254 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_5, "drop_green_prio_5"), \ 255 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_6, "drop_green_prio_6"), \ 256 OCELOT_STAT_ETHTOOL(DROP_GREEN_PRIO_7, "drop_green_prio_7") 257 258 struct ocelot_stats_region { 259 struct list_head node; 260 u32 base; 261 int count; 262 u32 *buf; 263 }; 264 265 static const struct ocelot_stat_layout ocelot_stats_layout[OCELOT_NUM_STATS] = { 266 OCELOT_COMMON_STATS, 267 }; 268 269 static const struct ocelot_stat_layout ocelot_mm_stats_layout[OCELOT_NUM_STATS] = { 270 OCELOT_COMMON_STATS, 271 OCELOT_STAT(RX_ASSEMBLY_ERRS), 272 OCELOT_STAT(RX_SMD_ERRS), 273 OCELOT_STAT(RX_ASSEMBLY_OK), 274 OCELOT_STAT(RX_MERGE_FRAGMENTS), 275 OCELOT_STAT(TX_MERGE_FRAGMENTS), 276 OCELOT_STAT(RX_PMAC_OCTETS), 277 OCELOT_STAT(RX_PMAC_UNICAST), 278 OCELOT_STAT(RX_PMAC_MULTICAST), 279 OCELOT_STAT(RX_PMAC_BROADCAST), 280 OCELOT_STAT(RX_PMAC_SHORTS), 281 OCELOT_STAT(RX_PMAC_FRAGMENTS), 282 OCELOT_STAT(RX_PMAC_JABBERS), 283 OCELOT_STAT(RX_PMAC_CRC_ALIGN_ERRS), 284 OCELOT_STAT(RX_PMAC_SYM_ERRS), 285 OCELOT_STAT(RX_PMAC_64), 286 OCELOT_STAT(RX_PMAC_65_127), 287 OCELOT_STAT(RX_PMAC_128_255), 288 OCELOT_STAT(RX_PMAC_256_511), 289 OCELOT_STAT(RX_PMAC_512_1023), 290 OCELOT_STAT(RX_PMAC_1024_1526), 291 OCELOT_STAT(RX_PMAC_1527_MAX), 292 OCELOT_STAT(RX_PMAC_PAUSE), 293 OCELOT_STAT(RX_PMAC_CONTROL), 294 OCELOT_STAT(RX_PMAC_LONGS), 295 OCELOT_STAT(TX_PMAC_OCTETS), 296 OCELOT_STAT(TX_PMAC_UNICAST), 297 OCELOT_STAT(TX_PMAC_MULTICAST), 298 OCELOT_STAT(TX_PMAC_BROADCAST), 299 OCELOT_STAT(TX_PMAC_PAUSE), 300 OCELOT_STAT(TX_PMAC_64), 301 OCELOT_STAT(TX_PMAC_65_127), 302 OCELOT_STAT(TX_PMAC_128_255), 303 OCELOT_STAT(TX_PMAC_256_511), 304 OCELOT_STAT(TX_PMAC_512_1023), 305 OCELOT_STAT(TX_PMAC_1024_1526), 306 OCELOT_STAT(TX_PMAC_1527_MAX), 307 }; 308 309 static const struct ocelot_stat_layout * 310 ocelot_get_stats_layout(struct ocelot *ocelot) 311 { 312 if (ocelot->mm_supported) 313 return ocelot_mm_stats_layout; 314 315 return ocelot_stats_layout; 316 } 317 318 /* Read the counters from hardware and keep them in region->buf. 319 * Caller must hold &ocelot->stat_view_lock. 320 */ 321 static int ocelot_port_update_stats(struct ocelot *ocelot, int port) 322 { 323 struct ocelot_stats_region *region; 324 int err; 325 326 /* Configure the port to read the stats from */ 327 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port), SYS_STAT_CFG); 328 329 list_for_each_entry(region, &ocelot->stats_regions, node) { 330 err = ocelot_bulk_read(ocelot, region->base, region->buf, 331 region->count); 332 if (err) 333 return err; 334 } 335 336 return 0; 337 } 338 339 /* Transfer the counters from region->buf to ocelot->stats. 340 * Caller must hold &ocelot->stat_view_lock and &ocelot->stats_lock. 341 */ 342 static void ocelot_port_transfer_stats(struct ocelot *ocelot, int port) 343 { 344 unsigned int idx = port * OCELOT_NUM_STATS; 345 struct ocelot_stats_region *region; 346 int j; 347 348 list_for_each_entry(region, &ocelot->stats_regions, node) { 349 for (j = 0; j < region->count; j++) { 350 u64 *stat = &ocelot->stats[idx + j]; 351 u64 val = region->buf[j]; 352 353 if (val < (*stat & U32_MAX)) 354 *stat += (u64)1 << 32; 355 356 *stat = (*stat & ~(u64)U32_MAX) + val; 357 } 358 359 idx += region->count; 360 } 361 } 362 363 static void ocelot_check_stats_work(struct work_struct *work) 364 { 365 struct delayed_work *del_work = to_delayed_work(work); 366 struct ocelot *ocelot = container_of(del_work, struct ocelot, 367 stats_work); 368 int port, err; 369 370 mutex_lock(&ocelot->stat_view_lock); 371 372 for (port = 0; port < ocelot->num_phys_ports; port++) { 373 err = ocelot_port_update_stats(ocelot, port); 374 if (err) 375 break; 376 377 spin_lock(&ocelot->stats_lock); 378 ocelot_port_transfer_stats(ocelot, port); 379 spin_unlock(&ocelot->stats_lock); 380 } 381 382 if (!err && ocelot->ops->update_stats) 383 ocelot->ops->update_stats(ocelot); 384 385 mutex_unlock(&ocelot->stat_view_lock); 386 387 if (err) 388 dev_err(ocelot->dev, "Error %d updating ethtool stats\n", err); 389 390 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, 391 OCELOT_STATS_CHECK_DELAY); 392 } 393 394 void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data) 395 { 396 const struct ocelot_stat_layout *layout; 397 int i; 398 399 if (sset != ETH_SS_STATS) 400 return; 401 402 layout = ocelot_get_stats_layout(ocelot); 403 404 for (i = 0; i < OCELOT_NUM_STATS; i++) { 405 if (layout[i].name[0] == '\0') 406 continue; 407 408 memcpy(data, layout[i].name, ETH_GSTRING_LEN); 409 data += ETH_GSTRING_LEN; 410 } 411 } 412 EXPORT_SYMBOL(ocelot_get_strings); 413 414 /* Update ocelot->stats for the given port and run the given callback */ 415 static void ocelot_port_stats_run(struct ocelot *ocelot, int port, void *priv, 416 void (*cb)(struct ocelot *ocelot, int port, 417 void *priv)) 418 { 419 int err; 420 421 mutex_lock(&ocelot->stat_view_lock); 422 423 err = ocelot_port_update_stats(ocelot, port); 424 if (err) { 425 dev_err(ocelot->dev, "Failed to update port %d stats: %pe\n", 426 port, ERR_PTR(err)); 427 goto out_unlock; 428 } 429 430 spin_lock(&ocelot->stats_lock); 431 432 ocelot_port_transfer_stats(ocelot, port); 433 cb(ocelot, port, priv); 434 435 spin_unlock(&ocelot->stats_lock); 436 437 out_unlock: 438 mutex_unlock(&ocelot->stat_view_lock); 439 } 440 441 int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset) 442 { 443 const struct ocelot_stat_layout *layout; 444 int i, num_stats = 0; 445 446 if (sset != ETH_SS_STATS) 447 return -EOPNOTSUPP; 448 449 layout = ocelot_get_stats_layout(ocelot); 450 451 for (i = 0; i < OCELOT_NUM_STATS; i++) 452 if (layout[i].name[0] != '\0') 453 num_stats++; 454 455 return num_stats; 456 } 457 EXPORT_SYMBOL(ocelot_get_sset_count); 458 459 static void ocelot_port_ethtool_stats_cb(struct ocelot *ocelot, int port, 460 void *priv) 461 { 462 const struct ocelot_stat_layout *layout; 463 u64 *data = priv; 464 int i; 465 466 layout = ocelot_get_stats_layout(ocelot); 467 468 /* Copy all supported counters */ 469 for (i = 0; i < OCELOT_NUM_STATS; i++) { 470 int index = port * OCELOT_NUM_STATS + i; 471 472 if (layout[i].name[0] == '\0') 473 continue; 474 475 *data++ = ocelot->stats[index]; 476 } 477 } 478 479 void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data) 480 { 481 ocelot_port_stats_run(ocelot, port, data, ocelot_port_ethtool_stats_cb); 482 } 483 EXPORT_SYMBOL(ocelot_get_ethtool_stats); 484 485 static void ocelot_port_pause_stats_cb(struct ocelot *ocelot, int port, void *priv) 486 { 487 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 488 struct ethtool_pause_stats *pause_stats = priv; 489 490 pause_stats->tx_pause_frames = s[OCELOT_STAT_TX_PAUSE]; 491 pause_stats->rx_pause_frames = s[OCELOT_STAT_RX_PAUSE]; 492 } 493 494 static void ocelot_port_pmac_pause_stats_cb(struct ocelot *ocelot, int port, 495 void *priv) 496 { 497 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 498 struct ethtool_pause_stats *pause_stats = priv; 499 500 pause_stats->tx_pause_frames = s[OCELOT_STAT_TX_PMAC_PAUSE]; 501 pause_stats->rx_pause_frames = s[OCELOT_STAT_RX_PMAC_PAUSE]; 502 } 503 504 static void ocelot_port_mm_stats_cb(struct ocelot *ocelot, int port, 505 void *priv) 506 { 507 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 508 struct ethtool_mm_stats *stats = priv; 509 510 stats->MACMergeFrameAssErrorCount = s[OCELOT_STAT_RX_ASSEMBLY_ERRS]; 511 stats->MACMergeFrameSmdErrorCount = s[OCELOT_STAT_RX_SMD_ERRS]; 512 stats->MACMergeFrameAssOkCount = s[OCELOT_STAT_RX_ASSEMBLY_OK]; 513 stats->MACMergeFragCountRx = s[OCELOT_STAT_RX_MERGE_FRAGMENTS]; 514 stats->MACMergeFragCountTx = s[OCELOT_STAT_TX_MERGE_FRAGMENTS]; 515 stats->MACMergeHoldCount = s[OCELOT_STAT_TX_MM_HOLD]; 516 } 517 518 void ocelot_port_get_pause_stats(struct ocelot *ocelot, int port, 519 struct ethtool_pause_stats *pause_stats) 520 { 521 struct net_device *dev; 522 523 switch (pause_stats->src) { 524 case ETHTOOL_MAC_STATS_SRC_EMAC: 525 ocelot_port_stats_run(ocelot, port, pause_stats, 526 ocelot_port_pause_stats_cb); 527 break; 528 case ETHTOOL_MAC_STATS_SRC_PMAC: 529 if (ocelot->mm_supported) 530 ocelot_port_stats_run(ocelot, port, pause_stats, 531 ocelot_port_pmac_pause_stats_cb); 532 break; 533 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 534 dev = ocelot->ops->port_to_netdev(ocelot, port); 535 ethtool_aggregate_pause_stats(dev, pause_stats); 536 break; 537 } 538 } 539 EXPORT_SYMBOL_GPL(ocelot_port_get_pause_stats); 540 541 void ocelot_port_get_mm_stats(struct ocelot *ocelot, int port, 542 struct ethtool_mm_stats *stats) 543 { 544 if (!ocelot->mm_supported) 545 return; 546 547 ocelot_port_stats_run(ocelot, port, stats, ocelot_port_mm_stats_cb); 548 } 549 EXPORT_SYMBOL_GPL(ocelot_port_get_mm_stats); 550 551 static const struct ethtool_rmon_hist_range ocelot_rmon_ranges[] = { 552 { 64, 64 }, 553 { 65, 127 }, 554 { 128, 255 }, 555 { 256, 511 }, 556 { 512, 1023 }, 557 { 1024, 1526 }, 558 { 1527, 65535 }, 559 {}, 560 }; 561 562 static void ocelot_port_rmon_stats_cb(struct ocelot *ocelot, int port, void *priv) 563 { 564 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 565 struct ethtool_rmon_stats *rmon_stats = priv; 566 567 rmon_stats->undersize_pkts = s[OCELOT_STAT_RX_SHORTS]; 568 rmon_stats->oversize_pkts = s[OCELOT_STAT_RX_LONGS]; 569 rmon_stats->fragments = s[OCELOT_STAT_RX_FRAGMENTS]; 570 rmon_stats->jabbers = s[OCELOT_STAT_RX_JABBERS]; 571 572 rmon_stats->hist[0] = s[OCELOT_STAT_RX_64]; 573 rmon_stats->hist[1] = s[OCELOT_STAT_RX_65_127]; 574 rmon_stats->hist[2] = s[OCELOT_STAT_RX_128_255]; 575 rmon_stats->hist[3] = s[OCELOT_STAT_RX_256_511]; 576 rmon_stats->hist[4] = s[OCELOT_STAT_RX_512_1023]; 577 rmon_stats->hist[5] = s[OCELOT_STAT_RX_1024_1526]; 578 rmon_stats->hist[6] = s[OCELOT_STAT_RX_1527_MAX]; 579 580 rmon_stats->hist_tx[0] = s[OCELOT_STAT_TX_64]; 581 rmon_stats->hist_tx[1] = s[OCELOT_STAT_TX_65_127]; 582 rmon_stats->hist_tx[2] = s[OCELOT_STAT_TX_128_255]; 583 rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_128_255]; 584 rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_256_511]; 585 rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_512_1023]; 586 rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_1024_1526]; 587 } 588 589 static void ocelot_port_pmac_rmon_stats_cb(struct ocelot *ocelot, int port, 590 void *priv) 591 { 592 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 593 struct ethtool_rmon_stats *rmon_stats = priv; 594 595 rmon_stats->undersize_pkts = s[OCELOT_STAT_RX_PMAC_SHORTS]; 596 rmon_stats->oversize_pkts = s[OCELOT_STAT_RX_PMAC_LONGS]; 597 rmon_stats->fragments = s[OCELOT_STAT_RX_PMAC_FRAGMENTS]; 598 rmon_stats->jabbers = s[OCELOT_STAT_RX_PMAC_JABBERS]; 599 600 rmon_stats->hist[0] = s[OCELOT_STAT_RX_PMAC_64]; 601 rmon_stats->hist[1] = s[OCELOT_STAT_RX_PMAC_65_127]; 602 rmon_stats->hist[2] = s[OCELOT_STAT_RX_PMAC_128_255]; 603 rmon_stats->hist[3] = s[OCELOT_STAT_RX_PMAC_256_511]; 604 rmon_stats->hist[4] = s[OCELOT_STAT_RX_PMAC_512_1023]; 605 rmon_stats->hist[5] = s[OCELOT_STAT_RX_PMAC_1024_1526]; 606 rmon_stats->hist[6] = s[OCELOT_STAT_RX_PMAC_1527_MAX]; 607 608 rmon_stats->hist_tx[0] = s[OCELOT_STAT_TX_PMAC_64]; 609 rmon_stats->hist_tx[1] = s[OCELOT_STAT_TX_PMAC_65_127]; 610 rmon_stats->hist_tx[2] = s[OCELOT_STAT_TX_PMAC_128_255]; 611 rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_PMAC_128_255]; 612 rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_PMAC_256_511]; 613 rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_PMAC_512_1023]; 614 rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_PMAC_1024_1526]; 615 } 616 617 void ocelot_port_get_rmon_stats(struct ocelot *ocelot, int port, 618 struct ethtool_rmon_stats *rmon_stats, 619 const struct ethtool_rmon_hist_range **ranges) 620 { 621 struct net_device *dev; 622 623 *ranges = ocelot_rmon_ranges; 624 625 switch (rmon_stats->src) { 626 case ETHTOOL_MAC_STATS_SRC_EMAC: 627 ocelot_port_stats_run(ocelot, port, rmon_stats, 628 ocelot_port_rmon_stats_cb); 629 break; 630 case ETHTOOL_MAC_STATS_SRC_PMAC: 631 if (ocelot->mm_supported) 632 ocelot_port_stats_run(ocelot, port, rmon_stats, 633 ocelot_port_pmac_rmon_stats_cb); 634 break; 635 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 636 dev = ocelot->ops->port_to_netdev(ocelot, port); 637 ethtool_aggregate_rmon_stats(dev, rmon_stats); 638 break; 639 } 640 } 641 EXPORT_SYMBOL_GPL(ocelot_port_get_rmon_stats); 642 643 static void ocelot_port_ctrl_stats_cb(struct ocelot *ocelot, int port, void *priv) 644 { 645 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 646 struct ethtool_eth_ctrl_stats *ctrl_stats = priv; 647 648 ctrl_stats->MACControlFramesReceived = s[OCELOT_STAT_RX_CONTROL]; 649 } 650 651 static void ocelot_port_pmac_ctrl_stats_cb(struct ocelot *ocelot, int port, 652 void *priv) 653 { 654 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 655 struct ethtool_eth_ctrl_stats *ctrl_stats = priv; 656 657 ctrl_stats->MACControlFramesReceived = s[OCELOT_STAT_RX_PMAC_CONTROL]; 658 } 659 660 void ocelot_port_get_eth_ctrl_stats(struct ocelot *ocelot, int port, 661 struct ethtool_eth_ctrl_stats *ctrl_stats) 662 { 663 struct net_device *dev; 664 665 switch (ctrl_stats->src) { 666 case ETHTOOL_MAC_STATS_SRC_EMAC: 667 ocelot_port_stats_run(ocelot, port, ctrl_stats, 668 ocelot_port_ctrl_stats_cb); 669 break; 670 case ETHTOOL_MAC_STATS_SRC_PMAC: 671 if (ocelot->mm_supported) 672 ocelot_port_stats_run(ocelot, port, ctrl_stats, 673 ocelot_port_pmac_ctrl_stats_cb); 674 break; 675 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 676 dev = ocelot->ops->port_to_netdev(ocelot, port); 677 ethtool_aggregate_ctrl_stats(dev, ctrl_stats); 678 break; 679 } 680 } 681 EXPORT_SYMBOL_GPL(ocelot_port_get_eth_ctrl_stats); 682 683 static void ocelot_port_mac_stats_cb(struct ocelot *ocelot, int port, void *priv) 684 { 685 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 686 struct ethtool_eth_mac_stats *mac_stats = priv; 687 688 mac_stats->OctetsTransmittedOK = s[OCELOT_STAT_TX_OCTETS]; 689 mac_stats->FramesTransmittedOK = s[OCELOT_STAT_TX_64] + 690 s[OCELOT_STAT_TX_65_127] + 691 s[OCELOT_STAT_TX_128_255] + 692 s[OCELOT_STAT_TX_256_511] + 693 s[OCELOT_STAT_TX_512_1023] + 694 s[OCELOT_STAT_TX_1024_1526] + 695 s[OCELOT_STAT_TX_1527_MAX]; 696 mac_stats->OctetsReceivedOK = s[OCELOT_STAT_RX_OCTETS]; 697 mac_stats->FramesReceivedOK = s[OCELOT_STAT_RX_GREEN_PRIO_0] + 698 s[OCELOT_STAT_RX_GREEN_PRIO_1] + 699 s[OCELOT_STAT_RX_GREEN_PRIO_2] + 700 s[OCELOT_STAT_RX_GREEN_PRIO_3] + 701 s[OCELOT_STAT_RX_GREEN_PRIO_4] + 702 s[OCELOT_STAT_RX_GREEN_PRIO_5] + 703 s[OCELOT_STAT_RX_GREEN_PRIO_6] + 704 s[OCELOT_STAT_RX_GREEN_PRIO_7] + 705 s[OCELOT_STAT_RX_YELLOW_PRIO_0] + 706 s[OCELOT_STAT_RX_YELLOW_PRIO_1] + 707 s[OCELOT_STAT_RX_YELLOW_PRIO_2] + 708 s[OCELOT_STAT_RX_YELLOW_PRIO_3] + 709 s[OCELOT_STAT_RX_YELLOW_PRIO_4] + 710 s[OCELOT_STAT_RX_YELLOW_PRIO_5] + 711 s[OCELOT_STAT_RX_YELLOW_PRIO_6] + 712 s[OCELOT_STAT_RX_YELLOW_PRIO_7]; 713 mac_stats->MulticastFramesXmittedOK = s[OCELOT_STAT_TX_MULTICAST]; 714 mac_stats->BroadcastFramesXmittedOK = s[OCELOT_STAT_TX_BROADCAST]; 715 mac_stats->MulticastFramesReceivedOK = s[OCELOT_STAT_RX_MULTICAST]; 716 mac_stats->BroadcastFramesReceivedOK = s[OCELOT_STAT_RX_BROADCAST]; 717 mac_stats->FrameTooLongErrors = s[OCELOT_STAT_RX_LONGS]; 718 /* Sadly, C_RX_CRC is the sum of FCS and alignment errors, they are not 719 * counted individually. 720 */ 721 mac_stats->FrameCheckSequenceErrors = s[OCELOT_STAT_RX_CRC_ALIGN_ERRS]; 722 mac_stats->AlignmentErrors = s[OCELOT_STAT_RX_CRC_ALIGN_ERRS]; 723 } 724 725 static void ocelot_port_pmac_mac_stats_cb(struct ocelot *ocelot, int port, 726 void *priv) 727 { 728 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 729 struct ethtool_eth_mac_stats *mac_stats = priv; 730 731 mac_stats->OctetsTransmittedOK = s[OCELOT_STAT_TX_PMAC_OCTETS]; 732 mac_stats->FramesTransmittedOK = s[OCELOT_STAT_TX_PMAC_64] + 733 s[OCELOT_STAT_TX_PMAC_65_127] + 734 s[OCELOT_STAT_TX_PMAC_128_255] + 735 s[OCELOT_STAT_TX_PMAC_256_511] + 736 s[OCELOT_STAT_TX_PMAC_512_1023] + 737 s[OCELOT_STAT_TX_PMAC_1024_1526] + 738 s[OCELOT_STAT_TX_PMAC_1527_MAX]; 739 mac_stats->OctetsReceivedOK = s[OCELOT_STAT_RX_PMAC_OCTETS]; 740 mac_stats->FramesReceivedOK = s[OCELOT_STAT_RX_PMAC_64] + 741 s[OCELOT_STAT_RX_PMAC_65_127] + 742 s[OCELOT_STAT_RX_PMAC_128_255] + 743 s[OCELOT_STAT_RX_PMAC_256_511] + 744 s[OCELOT_STAT_RX_PMAC_512_1023] + 745 s[OCELOT_STAT_RX_PMAC_1024_1526] + 746 s[OCELOT_STAT_RX_PMAC_1527_MAX]; 747 mac_stats->MulticastFramesXmittedOK = s[OCELOT_STAT_TX_PMAC_MULTICAST]; 748 mac_stats->BroadcastFramesXmittedOK = s[OCELOT_STAT_TX_PMAC_BROADCAST]; 749 mac_stats->MulticastFramesReceivedOK = s[OCELOT_STAT_RX_PMAC_MULTICAST]; 750 mac_stats->BroadcastFramesReceivedOK = s[OCELOT_STAT_RX_PMAC_BROADCAST]; 751 mac_stats->FrameTooLongErrors = s[OCELOT_STAT_RX_PMAC_LONGS]; 752 /* Sadly, C_RX_CRC is the sum of FCS and alignment errors, they are not 753 * counted individually. 754 */ 755 mac_stats->FrameCheckSequenceErrors = s[OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS]; 756 mac_stats->AlignmentErrors = s[OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS]; 757 } 758 759 void ocelot_port_get_eth_mac_stats(struct ocelot *ocelot, int port, 760 struct ethtool_eth_mac_stats *mac_stats) 761 { 762 struct net_device *dev; 763 764 switch (mac_stats->src) { 765 case ETHTOOL_MAC_STATS_SRC_EMAC: 766 ocelot_port_stats_run(ocelot, port, mac_stats, 767 ocelot_port_mac_stats_cb); 768 break; 769 case ETHTOOL_MAC_STATS_SRC_PMAC: 770 if (ocelot->mm_supported) 771 ocelot_port_stats_run(ocelot, port, mac_stats, 772 ocelot_port_pmac_mac_stats_cb); 773 break; 774 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 775 dev = ocelot->ops->port_to_netdev(ocelot, port); 776 ethtool_aggregate_mac_stats(dev, mac_stats); 777 break; 778 } 779 } 780 EXPORT_SYMBOL_GPL(ocelot_port_get_eth_mac_stats); 781 782 static void ocelot_port_phy_stats_cb(struct ocelot *ocelot, int port, void *priv) 783 { 784 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 785 struct ethtool_eth_phy_stats *phy_stats = priv; 786 787 phy_stats->SymbolErrorDuringCarrier = s[OCELOT_STAT_RX_SYM_ERRS]; 788 } 789 790 static void ocelot_port_pmac_phy_stats_cb(struct ocelot *ocelot, int port, 791 void *priv) 792 { 793 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 794 struct ethtool_eth_phy_stats *phy_stats = priv; 795 796 phy_stats->SymbolErrorDuringCarrier = s[OCELOT_STAT_RX_PMAC_SYM_ERRS]; 797 } 798 799 void ocelot_port_get_eth_phy_stats(struct ocelot *ocelot, int port, 800 struct ethtool_eth_phy_stats *phy_stats) 801 { 802 struct net_device *dev; 803 804 switch (phy_stats->src) { 805 case ETHTOOL_MAC_STATS_SRC_EMAC: 806 ocelot_port_stats_run(ocelot, port, phy_stats, 807 ocelot_port_phy_stats_cb); 808 break; 809 case ETHTOOL_MAC_STATS_SRC_PMAC: 810 if (ocelot->mm_supported) 811 ocelot_port_stats_run(ocelot, port, phy_stats, 812 ocelot_port_pmac_phy_stats_cb); 813 break; 814 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 815 dev = ocelot->ops->port_to_netdev(ocelot, port); 816 ethtool_aggregate_phy_stats(dev, phy_stats); 817 break; 818 } 819 } 820 EXPORT_SYMBOL_GPL(ocelot_port_get_eth_phy_stats); 821 822 void ocelot_port_get_stats64(struct ocelot *ocelot, int port, 823 struct rtnl_link_stats64 *stats) 824 { 825 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 826 827 spin_lock(&ocelot->stats_lock); 828 829 /* Get Rx stats */ 830 stats->rx_bytes = s[OCELOT_STAT_RX_OCTETS]; 831 stats->rx_packets = s[OCELOT_STAT_RX_SHORTS] + 832 s[OCELOT_STAT_RX_FRAGMENTS] + 833 s[OCELOT_STAT_RX_JABBERS] + 834 s[OCELOT_STAT_RX_LONGS] + 835 s[OCELOT_STAT_RX_64] + 836 s[OCELOT_STAT_RX_65_127] + 837 s[OCELOT_STAT_RX_128_255] + 838 s[OCELOT_STAT_RX_256_511] + 839 s[OCELOT_STAT_RX_512_1023] + 840 s[OCELOT_STAT_RX_1024_1526] + 841 s[OCELOT_STAT_RX_1527_MAX]; 842 stats->multicast = s[OCELOT_STAT_RX_MULTICAST]; 843 stats->rx_missed_errors = s[OCELOT_STAT_DROP_TAIL]; 844 stats->rx_dropped = s[OCELOT_STAT_RX_RED_PRIO_0] + 845 s[OCELOT_STAT_RX_RED_PRIO_1] + 846 s[OCELOT_STAT_RX_RED_PRIO_2] + 847 s[OCELOT_STAT_RX_RED_PRIO_3] + 848 s[OCELOT_STAT_RX_RED_PRIO_4] + 849 s[OCELOT_STAT_RX_RED_PRIO_5] + 850 s[OCELOT_STAT_RX_RED_PRIO_6] + 851 s[OCELOT_STAT_RX_RED_PRIO_7] + 852 s[OCELOT_STAT_DROP_LOCAL] + 853 s[OCELOT_STAT_DROP_YELLOW_PRIO_0] + 854 s[OCELOT_STAT_DROP_YELLOW_PRIO_1] + 855 s[OCELOT_STAT_DROP_YELLOW_PRIO_2] + 856 s[OCELOT_STAT_DROP_YELLOW_PRIO_3] + 857 s[OCELOT_STAT_DROP_YELLOW_PRIO_4] + 858 s[OCELOT_STAT_DROP_YELLOW_PRIO_5] + 859 s[OCELOT_STAT_DROP_YELLOW_PRIO_6] + 860 s[OCELOT_STAT_DROP_YELLOW_PRIO_7] + 861 s[OCELOT_STAT_DROP_GREEN_PRIO_0] + 862 s[OCELOT_STAT_DROP_GREEN_PRIO_1] + 863 s[OCELOT_STAT_DROP_GREEN_PRIO_2] + 864 s[OCELOT_STAT_DROP_GREEN_PRIO_3] + 865 s[OCELOT_STAT_DROP_GREEN_PRIO_4] + 866 s[OCELOT_STAT_DROP_GREEN_PRIO_5] + 867 s[OCELOT_STAT_DROP_GREEN_PRIO_6] + 868 s[OCELOT_STAT_DROP_GREEN_PRIO_7]; 869 870 /* Get Tx stats */ 871 stats->tx_bytes = s[OCELOT_STAT_TX_OCTETS]; 872 stats->tx_packets = s[OCELOT_STAT_TX_64] + 873 s[OCELOT_STAT_TX_65_127] + 874 s[OCELOT_STAT_TX_128_255] + 875 s[OCELOT_STAT_TX_256_511] + 876 s[OCELOT_STAT_TX_512_1023] + 877 s[OCELOT_STAT_TX_1024_1526] + 878 s[OCELOT_STAT_TX_1527_MAX]; 879 stats->tx_dropped = s[OCELOT_STAT_TX_DROPS] + 880 s[OCELOT_STAT_TX_AGED]; 881 stats->collisions = s[OCELOT_STAT_TX_COLLISION]; 882 883 spin_unlock(&ocelot->stats_lock); 884 } 885 EXPORT_SYMBOL(ocelot_port_get_stats64); 886 887 static int ocelot_prepare_stats_regions(struct ocelot *ocelot) 888 { 889 struct ocelot_stats_region *region = NULL; 890 const struct ocelot_stat_layout *layout; 891 unsigned int last = 0; 892 int i; 893 894 INIT_LIST_HEAD(&ocelot->stats_regions); 895 896 layout = ocelot_get_stats_layout(ocelot); 897 898 for (i = 0; i < OCELOT_NUM_STATS; i++) { 899 if (!layout[i].reg) 900 continue; 901 902 if (region && layout[i].reg == last + 4) { 903 region->count++; 904 } else { 905 region = devm_kzalloc(ocelot->dev, sizeof(*region), 906 GFP_KERNEL); 907 if (!region) 908 return -ENOMEM; 909 910 /* enum ocelot_stat must be kept sorted in the same 911 * order as layout[i].reg in order to have efficient 912 * bulking 913 */ 914 WARN_ON(last >= layout[i].reg); 915 916 region->base = layout[i].reg; 917 region->count = 1; 918 list_add_tail(®ion->node, &ocelot->stats_regions); 919 } 920 921 last = layout[i].reg; 922 } 923 924 list_for_each_entry(region, &ocelot->stats_regions, node) { 925 region->buf = devm_kcalloc(ocelot->dev, region->count, 926 sizeof(*region->buf), GFP_KERNEL); 927 if (!region->buf) 928 return -ENOMEM; 929 } 930 931 return 0; 932 } 933 934 int ocelot_stats_init(struct ocelot *ocelot) 935 { 936 char queue_name[32]; 937 int ret; 938 939 ocelot->stats = devm_kcalloc(ocelot->dev, 940 ocelot->num_phys_ports * OCELOT_NUM_STATS, 941 sizeof(u64), GFP_KERNEL); 942 if (!ocelot->stats) 943 return -ENOMEM; 944 945 snprintf(queue_name, sizeof(queue_name), "%s-stats", 946 dev_name(ocelot->dev)); 947 ocelot->stats_queue = create_singlethread_workqueue(queue_name); 948 if (!ocelot->stats_queue) 949 return -ENOMEM; 950 951 spin_lock_init(&ocelot->stats_lock); 952 mutex_init(&ocelot->stat_view_lock); 953 954 ret = ocelot_prepare_stats_regions(ocelot); 955 if (ret) { 956 destroy_workqueue(ocelot->stats_queue); 957 return ret; 958 } 959 960 INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work); 961 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, 962 OCELOT_STATS_CHECK_DELAY); 963 964 return 0; 965 } 966 967 void ocelot_stats_deinit(struct ocelot *ocelot) 968 { 969 cancel_delayed_work(&ocelot->stats_work); 970 destroy_workqueue(ocelot->stats_queue); 971 } 972 973