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 enum ocelot_reg 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 enum ocelot_reg base; 261 enum ocelot_stat first_stat; 262 int count; 263 u32 *buf; 264 }; 265 266 static const struct ocelot_stat_layout ocelot_stats_layout[OCELOT_NUM_STATS] = { 267 OCELOT_COMMON_STATS, 268 }; 269 270 static const struct ocelot_stat_layout ocelot_mm_stats_layout[OCELOT_NUM_STATS] = { 271 OCELOT_COMMON_STATS, 272 OCELOT_STAT(RX_ASSEMBLY_ERRS), 273 OCELOT_STAT(RX_SMD_ERRS), 274 OCELOT_STAT(RX_ASSEMBLY_OK), 275 OCELOT_STAT(RX_MERGE_FRAGMENTS), 276 OCELOT_STAT(TX_MERGE_FRAGMENTS), 277 OCELOT_STAT(TX_MM_HOLD), 278 OCELOT_STAT(RX_PMAC_OCTETS), 279 OCELOT_STAT(RX_PMAC_UNICAST), 280 OCELOT_STAT(RX_PMAC_MULTICAST), 281 OCELOT_STAT(RX_PMAC_BROADCAST), 282 OCELOT_STAT(RX_PMAC_SHORTS), 283 OCELOT_STAT(RX_PMAC_FRAGMENTS), 284 OCELOT_STAT(RX_PMAC_JABBERS), 285 OCELOT_STAT(RX_PMAC_CRC_ALIGN_ERRS), 286 OCELOT_STAT(RX_PMAC_SYM_ERRS), 287 OCELOT_STAT(RX_PMAC_64), 288 OCELOT_STAT(RX_PMAC_65_127), 289 OCELOT_STAT(RX_PMAC_128_255), 290 OCELOT_STAT(RX_PMAC_256_511), 291 OCELOT_STAT(RX_PMAC_512_1023), 292 OCELOT_STAT(RX_PMAC_1024_1526), 293 OCELOT_STAT(RX_PMAC_1527_MAX), 294 OCELOT_STAT(RX_PMAC_PAUSE), 295 OCELOT_STAT(RX_PMAC_CONTROL), 296 OCELOT_STAT(RX_PMAC_LONGS), 297 OCELOT_STAT(TX_PMAC_OCTETS), 298 OCELOT_STAT(TX_PMAC_UNICAST), 299 OCELOT_STAT(TX_PMAC_MULTICAST), 300 OCELOT_STAT(TX_PMAC_BROADCAST), 301 OCELOT_STAT(TX_PMAC_PAUSE), 302 OCELOT_STAT(TX_PMAC_64), 303 OCELOT_STAT(TX_PMAC_65_127), 304 OCELOT_STAT(TX_PMAC_128_255), 305 OCELOT_STAT(TX_PMAC_256_511), 306 OCELOT_STAT(TX_PMAC_512_1023), 307 OCELOT_STAT(TX_PMAC_1024_1526), 308 OCELOT_STAT(TX_PMAC_1527_MAX), 309 }; 310 311 static const struct ocelot_stat_layout * 312 ocelot_get_stats_layout(struct ocelot *ocelot) 313 { 314 if (ocelot->mm_supported) 315 return ocelot_mm_stats_layout; 316 317 return ocelot_stats_layout; 318 } 319 320 /* Read the counters from hardware and keep them in region->buf. 321 * Caller must hold &ocelot->stat_view_lock. 322 */ 323 static int ocelot_port_update_stats(struct ocelot *ocelot, int port) 324 { 325 struct ocelot_stats_region *region; 326 int err; 327 328 /* Configure the port to read the stats from */ 329 ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port), SYS_STAT_CFG); 330 331 list_for_each_entry(region, &ocelot->stats_regions, node) { 332 err = ocelot_bulk_read(ocelot, region->base, region->buf, 333 region->count); 334 if (err) 335 return err; 336 } 337 338 return 0; 339 } 340 341 /* Transfer the counters from region->buf to ocelot->stats. 342 * Caller must hold &ocelot->stat_view_lock and &ocelot->stats_lock. 343 */ 344 static void ocelot_port_transfer_stats(struct ocelot *ocelot, int port) 345 { 346 struct ocelot_stats_region *region; 347 int j; 348 349 list_for_each_entry(region, &ocelot->stats_regions, node) { 350 unsigned int idx = port * OCELOT_NUM_STATS + region->first_stat; 351 352 for (j = 0; j < region->count; j++) { 353 u64 *stat = &ocelot->stats[idx + j]; 354 u64 val = region->buf[j]; 355 356 if (val < (*stat & U32_MAX)) 357 *stat += (u64)1 << 32; 358 359 *stat = (*stat & ~(u64)U32_MAX) + val; 360 } 361 } 362 } 363 364 static void ocelot_check_stats_work(struct work_struct *work) 365 { 366 struct delayed_work *del_work = to_delayed_work(work); 367 struct ocelot *ocelot = container_of(del_work, struct ocelot, 368 stats_work); 369 int port, err; 370 371 mutex_lock(&ocelot->stat_view_lock); 372 373 for (port = 0; port < ocelot->num_phys_ports; port++) { 374 err = ocelot_port_update_stats(ocelot, port); 375 if (err) 376 break; 377 378 spin_lock(&ocelot->stats_lock); 379 ocelot_port_transfer_stats(ocelot, port); 380 spin_unlock(&ocelot->stats_lock); 381 } 382 383 if (!err && ocelot->ops->update_stats) 384 ocelot->ops->update_stats(ocelot); 385 386 mutex_unlock(&ocelot->stat_view_lock); 387 388 if (err) 389 dev_err(ocelot->dev, "Error %d updating ethtool stats\n", err); 390 391 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, 392 OCELOT_STATS_CHECK_DELAY); 393 } 394 395 void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data) 396 { 397 const struct ocelot_stat_layout *layout; 398 int i; 399 400 if (sset != ETH_SS_STATS) 401 return; 402 403 layout = ocelot_get_stats_layout(ocelot); 404 405 for (i = 0; i < OCELOT_NUM_STATS; i++) { 406 if (layout[i].name[0] == '\0') 407 continue; 408 409 memcpy(data, layout[i].name, ETH_GSTRING_LEN); 410 data += ETH_GSTRING_LEN; 411 } 412 } 413 EXPORT_SYMBOL(ocelot_get_strings); 414 415 /* Update ocelot->stats for the given port and run the given callback */ 416 static void ocelot_port_stats_run(struct ocelot *ocelot, int port, void *priv, 417 void (*cb)(struct ocelot *ocelot, int port, 418 void *priv)) 419 { 420 int err; 421 422 mutex_lock(&ocelot->stat_view_lock); 423 424 err = ocelot_port_update_stats(ocelot, port); 425 if (err) { 426 dev_err(ocelot->dev, "Failed to update port %d stats: %pe\n", 427 port, ERR_PTR(err)); 428 goto out_unlock; 429 } 430 431 spin_lock(&ocelot->stats_lock); 432 433 ocelot_port_transfer_stats(ocelot, port); 434 cb(ocelot, port, priv); 435 436 spin_unlock(&ocelot->stats_lock); 437 438 out_unlock: 439 mutex_unlock(&ocelot->stat_view_lock); 440 } 441 442 int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset) 443 { 444 const struct ocelot_stat_layout *layout; 445 int i, num_stats = 0; 446 447 if (sset != ETH_SS_STATS) 448 return -EOPNOTSUPP; 449 450 layout = ocelot_get_stats_layout(ocelot); 451 452 for (i = 0; i < OCELOT_NUM_STATS; i++) 453 if (layout[i].name[0] != '\0') 454 num_stats++; 455 456 return num_stats; 457 } 458 EXPORT_SYMBOL(ocelot_get_sset_count); 459 460 static void ocelot_port_ethtool_stats_cb(struct ocelot *ocelot, int port, 461 void *priv) 462 { 463 const struct ocelot_stat_layout *layout; 464 u64 *data = priv; 465 int i; 466 467 layout = ocelot_get_stats_layout(ocelot); 468 469 /* Copy all supported counters */ 470 for (i = 0; i < OCELOT_NUM_STATS; i++) { 471 int index = port * OCELOT_NUM_STATS + i; 472 473 if (layout[i].name[0] == '\0') 474 continue; 475 476 *data++ = ocelot->stats[index]; 477 } 478 } 479 480 void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data) 481 { 482 ocelot_port_stats_run(ocelot, port, data, ocelot_port_ethtool_stats_cb); 483 } 484 EXPORT_SYMBOL(ocelot_get_ethtool_stats); 485 486 static void ocelot_port_pause_stats_cb(struct ocelot *ocelot, int port, void *priv) 487 { 488 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 489 struct ethtool_pause_stats *pause_stats = priv; 490 491 pause_stats->tx_pause_frames = s[OCELOT_STAT_TX_PAUSE]; 492 pause_stats->rx_pause_frames = s[OCELOT_STAT_RX_PAUSE]; 493 } 494 495 static void ocelot_port_pmac_pause_stats_cb(struct ocelot *ocelot, int port, 496 void *priv) 497 { 498 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 499 struct ethtool_pause_stats *pause_stats = priv; 500 501 pause_stats->tx_pause_frames = s[OCELOT_STAT_TX_PMAC_PAUSE]; 502 pause_stats->rx_pause_frames = s[OCELOT_STAT_RX_PMAC_PAUSE]; 503 } 504 505 static void ocelot_port_mm_stats_cb(struct ocelot *ocelot, int port, 506 void *priv) 507 { 508 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 509 struct ethtool_mm_stats *stats = priv; 510 511 stats->MACMergeFrameAssErrorCount = s[OCELOT_STAT_RX_ASSEMBLY_ERRS]; 512 stats->MACMergeFrameSmdErrorCount = s[OCELOT_STAT_RX_SMD_ERRS]; 513 stats->MACMergeFrameAssOkCount = s[OCELOT_STAT_RX_ASSEMBLY_OK]; 514 stats->MACMergeFragCountRx = s[OCELOT_STAT_RX_MERGE_FRAGMENTS]; 515 stats->MACMergeFragCountTx = s[OCELOT_STAT_TX_MERGE_FRAGMENTS]; 516 stats->MACMergeHoldCount = s[OCELOT_STAT_TX_MM_HOLD]; 517 } 518 519 void ocelot_port_get_pause_stats(struct ocelot *ocelot, int port, 520 struct ethtool_pause_stats *pause_stats) 521 { 522 struct net_device *dev; 523 524 switch (pause_stats->src) { 525 case ETHTOOL_MAC_STATS_SRC_EMAC: 526 ocelot_port_stats_run(ocelot, port, pause_stats, 527 ocelot_port_pause_stats_cb); 528 break; 529 case ETHTOOL_MAC_STATS_SRC_PMAC: 530 if (ocelot->mm_supported) 531 ocelot_port_stats_run(ocelot, port, pause_stats, 532 ocelot_port_pmac_pause_stats_cb); 533 break; 534 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 535 dev = ocelot->ops->port_to_netdev(ocelot, port); 536 ethtool_aggregate_pause_stats(dev, pause_stats); 537 break; 538 } 539 } 540 EXPORT_SYMBOL_GPL(ocelot_port_get_pause_stats); 541 542 void ocelot_port_get_mm_stats(struct ocelot *ocelot, int port, 543 struct ethtool_mm_stats *stats) 544 { 545 if (!ocelot->mm_supported) 546 return; 547 548 ocelot_port_stats_run(ocelot, port, stats, ocelot_port_mm_stats_cb); 549 } 550 EXPORT_SYMBOL_GPL(ocelot_port_get_mm_stats); 551 552 static const struct ethtool_rmon_hist_range ocelot_rmon_ranges[] = { 553 { 64, 64 }, 554 { 65, 127 }, 555 { 128, 255 }, 556 { 256, 511 }, 557 { 512, 1023 }, 558 { 1024, 1526 }, 559 { 1527, 65535 }, 560 {}, 561 }; 562 563 static void ocelot_port_rmon_stats_cb(struct ocelot *ocelot, int port, void *priv) 564 { 565 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 566 struct ethtool_rmon_stats *rmon_stats = priv; 567 568 rmon_stats->undersize_pkts = s[OCELOT_STAT_RX_SHORTS]; 569 rmon_stats->oversize_pkts = s[OCELOT_STAT_RX_LONGS]; 570 rmon_stats->fragments = s[OCELOT_STAT_RX_FRAGMENTS]; 571 rmon_stats->jabbers = s[OCELOT_STAT_RX_JABBERS]; 572 573 rmon_stats->hist[0] = s[OCELOT_STAT_RX_64]; 574 rmon_stats->hist[1] = s[OCELOT_STAT_RX_65_127]; 575 rmon_stats->hist[2] = s[OCELOT_STAT_RX_128_255]; 576 rmon_stats->hist[3] = s[OCELOT_STAT_RX_256_511]; 577 rmon_stats->hist[4] = s[OCELOT_STAT_RX_512_1023]; 578 rmon_stats->hist[5] = s[OCELOT_STAT_RX_1024_1526]; 579 rmon_stats->hist[6] = s[OCELOT_STAT_RX_1527_MAX]; 580 581 rmon_stats->hist_tx[0] = s[OCELOT_STAT_TX_64]; 582 rmon_stats->hist_tx[1] = s[OCELOT_STAT_TX_65_127]; 583 rmon_stats->hist_tx[2] = s[OCELOT_STAT_TX_128_255]; 584 rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_128_255]; 585 rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_256_511]; 586 rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_512_1023]; 587 rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_1024_1526]; 588 } 589 590 static void ocelot_port_pmac_rmon_stats_cb(struct ocelot *ocelot, int port, 591 void *priv) 592 { 593 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 594 struct ethtool_rmon_stats *rmon_stats = priv; 595 596 rmon_stats->undersize_pkts = s[OCELOT_STAT_RX_PMAC_SHORTS]; 597 rmon_stats->oversize_pkts = s[OCELOT_STAT_RX_PMAC_LONGS]; 598 rmon_stats->fragments = s[OCELOT_STAT_RX_PMAC_FRAGMENTS]; 599 rmon_stats->jabbers = s[OCELOT_STAT_RX_PMAC_JABBERS]; 600 601 rmon_stats->hist[0] = s[OCELOT_STAT_RX_PMAC_64]; 602 rmon_stats->hist[1] = s[OCELOT_STAT_RX_PMAC_65_127]; 603 rmon_stats->hist[2] = s[OCELOT_STAT_RX_PMAC_128_255]; 604 rmon_stats->hist[3] = s[OCELOT_STAT_RX_PMAC_256_511]; 605 rmon_stats->hist[4] = s[OCELOT_STAT_RX_PMAC_512_1023]; 606 rmon_stats->hist[5] = s[OCELOT_STAT_RX_PMAC_1024_1526]; 607 rmon_stats->hist[6] = s[OCELOT_STAT_RX_PMAC_1527_MAX]; 608 609 rmon_stats->hist_tx[0] = s[OCELOT_STAT_TX_PMAC_64]; 610 rmon_stats->hist_tx[1] = s[OCELOT_STAT_TX_PMAC_65_127]; 611 rmon_stats->hist_tx[2] = s[OCELOT_STAT_TX_PMAC_128_255]; 612 rmon_stats->hist_tx[3] = s[OCELOT_STAT_TX_PMAC_128_255]; 613 rmon_stats->hist_tx[4] = s[OCELOT_STAT_TX_PMAC_256_511]; 614 rmon_stats->hist_tx[5] = s[OCELOT_STAT_TX_PMAC_512_1023]; 615 rmon_stats->hist_tx[6] = s[OCELOT_STAT_TX_PMAC_1024_1526]; 616 } 617 618 void ocelot_port_get_rmon_stats(struct ocelot *ocelot, int port, 619 struct ethtool_rmon_stats *rmon_stats, 620 const struct ethtool_rmon_hist_range **ranges) 621 { 622 struct net_device *dev; 623 624 *ranges = ocelot_rmon_ranges; 625 626 switch (rmon_stats->src) { 627 case ETHTOOL_MAC_STATS_SRC_EMAC: 628 ocelot_port_stats_run(ocelot, port, rmon_stats, 629 ocelot_port_rmon_stats_cb); 630 break; 631 case ETHTOOL_MAC_STATS_SRC_PMAC: 632 if (ocelot->mm_supported) 633 ocelot_port_stats_run(ocelot, port, rmon_stats, 634 ocelot_port_pmac_rmon_stats_cb); 635 break; 636 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 637 dev = ocelot->ops->port_to_netdev(ocelot, port); 638 ethtool_aggregate_rmon_stats(dev, rmon_stats); 639 break; 640 } 641 } 642 EXPORT_SYMBOL_GPL(ocelot_port_get_rmon_stats); 643 644 static void ocelot_port_ctrl_stats_cb(struct ocelot *ocelot, int port, void *priv) 645 { 646 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 647 struct ethtool_eth_ctrl_stats *ctrl_stats = priv; 648 649 ctrl_stats->MACControlFramesReceived = s[OCELOT_STAT_RX_CONTROL]; 650 } 651 652 static void ocelot_port_pmac_ctrl_stats_cb(struct ocelot *ocelot, int port, 653 void *priv) 654 { 655 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 656 struct ethtool_eth_ctrl_stats *ctrl_stats = priv; 657 658 ctrl_stats->MACControlFramesReceived = s[OCELOT_STAT_RX_PMAC_CONTROL]; 659 } 660 661 void ocelot_port_get_eth_ctrl_stats(struct ocelot *ocelot, int port, 662 struct ethtool_eth_ctrl_stats *ctrl_stats) 663 { 664 struct net_device *dev; 665 666 switch (ctrl_stats->src) { 667 case ETHTOOL_MAC_STATS_SRC_EMAC: 668 ocelot_port_stats_run(ocelot, port, ctrl_stats, 669 ocelot_port_ctrl_stats_cb); 670 break; 671 case ETHTOOL_MAC_STATS_SRC_PMAC: 672 if (ocelot->mm_supported) 673 ocelot_port_stats_run(ocelot, port, ctrl_stats, 674 ocelot_port_pmac_ctrl_stats_cb); 675 break; 676 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 677 dev = ocelot->ops->port_to_netdev(ocelot, port); 678 ethtool_aggregate_ctrl_stats(dev, ctrl_stats); 679 break; 680 } 681 } 682 EXPORT_SYMBOL_GPL(ocelot_port_get_eth_ctrl_stats); 683 684 static void ocelot_port_mac_stats_cb(struct ocelot *ocelot, int port, void *priv) 685 { 686 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 687 struct ethtool_eth_mac_stats *mac_stats = priv; 688 689 mac_stats->OctetsTransmittedOK = s[OCELOT_STAT_TX_OCTETS]; 690 mac_stats->FramesTransmittedOK = s[OCELOT_STAT_TX_64] + 691 s[OCELOT_STAT_TX_65_127] + 692 s[OCELOT_STAT_TX_128_255] + 693 s[OCELOT_STAT_TX_256_511] + 694 s[OCELOT_STAT_TX_512_1023] + 695 s[OCELOT_STAT_TX_1024_1526] + 696 s[OCELOT_STAT_TX_1527_MAX]; 697 mac_stats->OctetsReceivedOK = s[OCELOT_STAT_RX_OCTETS]; 698 mac_stats->FramesReceivedOK = s[OCELOT_STAT_RX_GREEN_PRIO_0] + 699 s[OCELOT_STAT_RX_GREEN_PRIO_1] + 700 s[OCELOT_STAT_RX_GREEN_PRIO_2] + 701 s[OCELOT_STAT_RX_GREEN_PRIO_3] + 702 s[OCELOT_STAT_RX_GREEN_PRIO_4] + 703 s[OCELOT_STAT_RX_GREEN_PRIO_5] + 704 s[OCELOT_STAT_RX_GREEN_PRIO_6] + 705 s[OCELOT_STAT_RX_GREEN_PRIO_7] + 706 s[OCELOT_STAT_RX_YELLOW_PRIO_0] + 707 s[OCELOT_STAT_RX_YELLOW_PRIO_1] + 708 s[OCELOT_STAT_RX_YELLOW_PRIO_2] + 709 s[OCELOT_STAT_RX_YELLOW_PRIO_3] + 710 s[OCELOT_STAT_RX_YELLOW_PRIO_4] + 711 s[OCELOT_STAT_RX_YELLOW_PRIO_5] + 712 s[OCELOT_STAT_RX_YELLOW_PRIO_6] + 713 s[OCELOT_STAT_RX_YELLOW_PRIO_7]; 714 mac_stats->MulticastFramesXmittedOK = s[OCELOT_STAT_TX_MULTICAST]; 715 mac_stats->BroadcastFramesXmittedOK = s[OCELOT_STAT_TX_BROADCAST]; 716 mac_stats->MulticastFramesReceivedOK = s[OCELOT_STAT_RX_MULTICAST]; 717 mac_stats->BroadcastFramesReceivedOK = s[OCELOT_STAT_RX_BROADCAST]; 718 mac_stats->FrameTooLongErrors = s[OCELOT_STAT_RX_LONGS]; 719 /* Sadly, C_RX_CRC is the sum of FCS and alignment errors, they are not 720 * counted individually. 721 */ 722 mac_stats->FrameCheckSequenceErrors = s[OCELOT_STAT_RX_CRC_ALIGN_ERRS]; 723 mac_stats->AlignmentErrors = s[OCELOT_STAT_RX_CRC_ALIGN_ERRS]; 724 } 725 726 static void ocelot_port_pmac_mac_stats_cb(struct ocelot *ocelot, int port, 727 void *priv) 728 { 729 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 730 struct ethtool_eth_mac_stats *mac_stats = priv; 731 732 mac_stats->OctetsTransmittedOK = s[OCELOT_STAT_TX_PMAC_OCTETS]; 733 mac_stats->FramesTransmittedOK = s[OCELOT_STAT_TX_PMAC_64] + 734 s[OCELOT_STAT_TX_PMAC_65_127] + 735 s[OCELOT_STAT_TX_PMAC_128_255] + 736 s[OCELOT_STAT_TX_PMAC_256_511] + 737 s[OCELOT_STAT_TX_PMAC_512_1023] + 738 s[OCELOT_STAT_TX_PMAC_1024_1526] + 739 s[OCELOT_STAT_TX_PMAC_1527_MAX]; 740 mac_stats->OctetsReceivedOK = s[OCELOT_STAT_RX_PMAC_OCTETS]; 741 mac_stats->FramesReceivedOK = s[OCELOT_STAT_RX_PMAC_64] + 742 s[OCELOT_STAT_RX_PMAC_65_127] + 743 s[OCELOT_STAT_RX_PMAC_128_255] + 744 s[OCELOT_STAT_RX_PMAC_256_511] + 745 s[OCELOT_STAT_RX_PMAC_512_1023] + 746 s[OCELOT_STAT_RX_PMAC_1024_1526] + 747 s[OCELOT_STAT_RX_PMAC_1527_MAX]; 748 mac_stats->MulticastFramesXmittedOK = s[OCELOT_STAT_TX_PMAC_MULTICAST]; 749 mac_stats->BroadcastFramesXmittedOK = s[OCELOT_STAT_TX_PMAC_BROADCAST]; 750 mac_stats->MulticastFramesReceivedOK = s[OCELOT_STAT_RX_PMAC_MULTICAST]; 751 mac_stats->BroadcastFramesReceivedOK = s[OCELOT_STAT_RX_PMAC_BROADCAST]; 752 mac_stats->FrameTooLongErrors = s[OCELOT_STAT_RX_PMAC_LONGS]; 753 /* Sadly, C_RX_CRC is the sum of FCS and alignment errors, they are not 754 * counted individually. 755 */ 756 mac_stats->FrameCheckSequenceErrors = s[OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS]; 757 mac_stats->AlignmentErrors = s[OCELOT_STAT_RX_PMAC_CRC_ALIGN_ERRS]; 758 } 759 760 void ocelot_port_get_eth_mac_stats(struct ocelot *ocelot, int port, 761 struct ethtool_eth_mac_stats *mac_stats) 762 { 763 struct net_device *dev; 764 765 switch (mac_stats->src) { 766 case ETHTOOL_MAC_STATS_SRC_EMAC: 767 ocelot_port_stats_run(ocelot, port, mac_stats, 768 ocelot_port_mac_stats_cb); 769 break; 770 case ETHTOOL_MAC_STATS_SRC_PMAC: 771 if (ocelot->mm_supported) 772 ocelot_port_stats_run(ocelot, port, mac_stats, 773 ocelot_port_pmac_mac_stats_cb); 774 break; 775 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 776 dev = ocelot->ops->port_to_netdev(ocelot, port); 777 ethtool_aggregate_mac_stats(dev, mac_stats); 778 break; 779 } 780 } 781 EXPORT_SYMBOL_GPL(ocelot_port_get_eth_mac_stats); 782 783 static void ocelot_port_phy_stats_cb(struct ocelot *ocelot, int port, void *priv) 784 { 785 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 786 struct ethtool_eth_phy_stats *phy_stats = priv; 787 788 phy_stats->SymbolErrorDuringCarrier = s[OCELOT_STAT_RX_SYM_ERRS]; 789 } 790 791 static void ocelot_port_pmac_phy_stats_cb(struct ocelot *ocelot, int port, 792 void *priv) 793 { 794 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 795 struct ethtool_eth_phy_stats *phy_stats = priv; 796 797 phy_stats->SymbolErrorDuringCarrier = s[OCELOT_STAT_RX_PMAC_SYM_ERRS]; 798 } 799 800 void ocelot_port_get_eth_phy_stats(struct ocelot *ocelot, int port, 801 struct ethtool_eth_phy_stats *phy_stats) 802 { 803 struct net_device *dev; 804 805 switch (phy_stats->src) { 806 case ETHTOOL_MAC_STATS_SRC_EMAC: 807 ocelot_port_stats_run(ocelot, port, phy_stats, 808 ocelot_port_phy_stats_cb); 809 break; 810 case ETHTOOL_MAC_STATS_SRC_PMAC: 811 if (ocelot->mm_supported) 812 ocelot_port_stats_run(ocelot, port, phy_stats, 813 ocelot_port_pmac_phy_stats_cb); 814 break; 815 case ETHTOOL_MAC_STATS_SRC_AGGREGATE: 816 dev = ocelot->ops->port_to_netdev(ocelot, port); 817 ethtool_aggregate_phy_stats(dev, phy_stats); 818 break; 819 } 820 } 821 EXPORT_SYMBOL_GPL(ocelot_port_get_eth_phy_stats); 822 823 void ocelot_port_get_stats64(struct ocelot *ocelot, int port, 824 struct rtnl_link_stats64 *stats) 825 { 826 u64 *s = &ocelot->stats[port * OCELOT_NUM_STATS]; 827 828 spin_lock(&ocelot->stats_lock); 829 830 /* Get Rx stats */ 831 stats->rx_bytes = s[OCELOT_STAT_RX_OCTETS]; 832 stats->rx_packets = s[OCELOT_STAT_RX_SHORTS] + 833 s[OCELOT_STAT_RX_FRAGMENTS] + 834 s[OCELOT_STAT_RX_JABBERS] + 835 s[OCELOT_STAT_RX_LONGS] + 836 s[OCELOT_STAT_RX_64] + 837 s[OCELOT_STAT_RX_65_127] + 838 s[OCELOT_STAT_RX_128_255] + 839 s[OCELOT_STAT_RX_256_511] + 840 s[OCELOT_STAT_RX_512_1023] + 841 s[OCELOT_STAT_RX_1024_1526] + 842 s[OCELOT_STAT_RX_1527_MAX]; 843 stats->multicast = s[OCELOT_STAT_RX_MULTICAST]; 844 stats->rx_missed_errors = s[OCELOT_STAT_DROP_TAIL]; 845 stats->rx_dropped = s[OCELOT_STAT_RX_RED_PRIO_0] + 846 s[OCELOT_STAT_RX_RED_PRIO_1] + 847 s[OCELOT_STAT_RX_RED_PRIO_2] + 848 s[OCELOT_STAT_RX_RED_PRIO_3] + 849 s[OCELOT_STAT_RX_RED_PRIO_4] + 850 s[OCELOT_STAT_RX_RED_PRIO_5] + 851 s[OCELOT_STAT_RX_RED_PRIO_6] + 852 s[OCELOT_STAT_RX_RED_PRIO_7] + 853 s[OCELOT_STAT_DROP_LOCAL] + 854 s[OCELOT_STAT_DROP_YELLOW_PRIO_0] + 855 s[OCELOT_STAT_DROP_YELLOW_PRIO_1] + 856 s[OCELOT_STAT_DROP_YELLOW_PRIO_2] + 857 s[OCELOT_STAT_DROP_YELLOW_PRIO_3] + 858 s[OCELOT_STAT_DROP_YELLOW_PRIO_4] + 859 s[OCELOT_STAT_DROP_YELLOW_PRIO_5] + 860 s[OCELOT_STAT_DROP_YELLOW_PRIO_6] + 861 s[OCELOT_STAT_DROP_YELLOW_PRIO_7] + 862 s[OCELOT_STAT_DROP_GREEN_PRIO_0] + 863 s[OCELOT_STAT_DROP_GREEN_PRIO_1] + 864 s[OCELOT_STAT_DROP_GREEN_PRIO_2] + 865 s[OCELOT_STAT_DROP_GREEN_PRIO_3] + 866 s[OCELOT_STAT_DROP_GREEN_PRIO_4] + 867 s[OCELOT_STAT_DROP_GREEN_PRIO_5] + 868 s[OCELOT_STAT_DROP_GREEN_PRIO_6] + 869 s[OCELOT_STAT_DROP_GREEN_PRIO_7]; 870 871 /* Get Tx stats */ 872 stats->tx_bytes = s[OCELOT_STAT_TX_OCTETS]; 873 stats->tx_packets = s[OCELOT_STAT_TX_64] + 874 s[OCELOT_STAT_TX_65_127] + 875 s[OCELOT_STAT_TX_128_255] + 876 s[OCELOT_STAT_TX_256_511] + 877 s[OCELOT_STAT_TX_512_1023] + 878 s[OCELOT_STAT_TX_1024_1526] + 879 s[OCELOT_STAT_TX_1527_MAX]; 880 stats->tx_dropped = s[OCELOT_STAT_TX_DROPS] + 881 s[OCELOT_STAT_TX_AGED]; 882 stats->collisions = s[OCELOT_STAT_TX_COLLISION]; 883 884 spin_unlock(&ocelot->stats_lock); 885 } 886 EXPORT_SYMBOL(ocelot_port_get_stats64); 887 888 static int ocelot_prepare_stats_regions(struct ocelot *ocelot) 889 { 890 struct ocelot_stats_region *region = NULL; 891 const struct ocelot_stat_layout *layout; 892 enum ocelot_reg last = 0; 893 int i; 894 895 INIT_LIST_HEAD(&ocelot->stats_regions); 896 897 layout = ocelot_get_stats_layout(ocelot); 898 899 for (i = 0; i < OCELOT_NUM_STATS; i++) { 900 if (!layout[i].reg) 901 continue; 902 903 if (region && ocelot->map[SYS][layout[i].reg & REG_MASK] == 904 ocelot->map[SYS][last & REG_MASK] + 4) { 905 region->count++; 906 } else { 907 region = devm_kzalloc(ocelot->dev, sizeof(*region), 908 GFP_KERNEL); 909 if (!region) 910 return -ENOMEM; 911 912 /* enum ocelot_stat must be kept sorted in the same 913 * order as layout[i].reg in order to have efficient 914 * bulking 915 */ 916 WARN_ON(last >= layout[i].reg); 917 918 region->base = layout[i].reg; 919 region->first_stat = i; 920 region->count = 1; 921 list_add_tail(®ion->node, &ocelot->stats_regions); 922 } 923 924 last = layout[i].reg; 925 } 926 927 list_for_each_entry(region, &ocelot->stats_regions, node) { 928 enum ocelot_target target; 929 u32 addr; 930 931 ocelot_reg_to_target_addr(ocelot, region->base, &target, 932 &addr); 933 934 dev_dbg(ocelot->dev, 935 "region of %d contiguous counters starting with SYS:STAT:CNT[0x%03x]\n", 936 region->count, addr / 4); 937 region->buf = devm_kcalloc(ocelot->dev, region->count, 938 sizeof(*region->buf), GFP_KERNEL); 939 if (!region->buf) 940 return -ENOMEM; 941 } 942 943 return 0; 944 } 945 946 int ocelot_stats_init(struct ocelot *ocelot) 947 { 948 char queue_name[32]; 949 int ret; 950 951 ocelot->stats = devm_kcalloc(ocelot->dev, 952 ocelot->num_phys_ports * OCELOT_NUM_STATS, 953 sizeof(u64), GFP_KERNEL); 954 if (!ocelot->stats) 955 return -ENOMEM; 956 957 snprintf(queue_name, sizeof(queue_name), "%s-stats", 958 dev_name(ocelot->dev)); 959 ocelot->stats_queue = create_singlethread_workqueue(queue_name); 960 if (!ocelot->stats_queue) 961 return -ENOMEM; 962 963 spin_lock_init(&ocelot->stats_lock); 964 mutex_init(&ocelot->stat_view_lock); 965 966 ret = ocelot_prepare_stats_regions(ocelot); 967 if (ret) { 968 destroy_workqueue(ocelot->stats_queue); 969 return ret; 970 } 971 972 INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work); 973 queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, 974 OCELOT_STATS_CHECK_DELAY); 975 976 return 0; 977 } 978 979 void ocelot_stats_deinit(struct ocelot *ocelot) 980 { 981 cancel_delayed_work(&ocelot->stats_work); 982 destroy_workqueue(ocelot->stats_queue); 983 } 984