developer | fd40db2 | 2021-04-29 10:08:25 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * Copyright (c) 2018 MediaTek Inc. |
| 4 | * Author: Weijie Gao <weijie.gao@mediatek.com> |
| 5 | */ |
| 6 | |
| 7 | #include <linux/if.h> |
| 8 | #include <linux/list.h> |
| 9 | #include <linux/if_ether.h> |
| 10 | #include <linux/skbuff.h> |
| 11 | #include <linux/netdevice.h> |
| 12 | #include <linux/netlink.h> |
| 13 | #include <linux/bitops.h> |
| 14 | #include <net/genetlink.h> |
| 15 | #include <linux/delay.h> |
| 16 | #include <linux/phy.h> |
| 17 | #include <linux/netdevice.h> |
| 18 | #include <linux/etherdevice.h> |
| 19 | #include <linux/lockdep.h> |
| 20 | #include <linux/workqueue.h> |
| 21 | #include <linux/of_device.h> |
| 22 | |
| 23 | #include "mt753x.h" |
| 24 | #include "mt753x_swconfig.h" |
| 25 | #include "mt753x_regs.h" |
| 26 | |
| 27 | #define MT753X_PORT_MIB_TXB_ID 18 /* TxByte */ |
| 28 | #define MT753X_PORT_MIB_RXB_ID 37 /* RxByte */ |
| 29 | |
| 30 | #define MIB_DESC(_s, _o, _n) \ |
| 31 | { \ |
| 32 | .size = (_s), \ |
| 33 | .offset = (_o), \ |
| 34 | .name = (_n), \ |
| 35 | } |
| 36 | |
| 37 | struct mt753x_mib_desc { |
| 38 | unsigned int size; |
| 39 | unsigned int offset; |
| 40 | const char *name; |
| 41 | }; |
| 42 | |
| 43 | static const struct mt753x_mib_desc mt753x_mibs[] = { |
| 44 | MIB_DESC(1, STATS_TDPC, "TxDrop"), |
| 45 | MIB_DESC(1, STATS_TCRC, "TxCRC"), |
| 46 | MIB_DESC(1, STATS_TUPC, "TxUni"), |
| 47 | MIB_DESC(1, STATS_TMPC, "TxMulti"), |
| 48 | MIB_DESC(1, STATS_TBPC, "TxBroad"), |
| 49 | MIB_DESC(1, STATS_TCEC, "TxCollision"), |
| 50 | MIB_DESC(1, STATS_TSCEC, "TxSingleCol"), |
| 51 | MIB_DESC(1, STATS_TMCEC, "TxMultiCol"), |
| 52 | MIB_DESC(1, STATS_TDEC, "TxDefer"), |
| 53 | MIB_DESC(1, STATS_TLCEC, "TxLateCol"), |
| 54 | MIB_DESC(1, STATS_TXCEC, "TxExcCol"), |
| 55 | MIB_DESC(1, STATS_TPPC, "TxPause"), |
| 56 | MIB_DESC(1, STATS_TL64PC, "Tx64Byte"), |
| 57 | MIB_DESC(1, STATS_TL65PC, "Tx65Byte"), |
| 58 | MIB_DESC(1, STATS_TL128PC, "Tx128Byte"), |
| 59 | MIB_DESC(1, STATS_TL256PC, "Tx256Byte"), |
| 60 | MIB_DESC(1, STATS_TL512PC, "Tx512Byte"), |
| 61 | MIB_DESC(1, STATS_TL1024PC, "Tx1024Byte"), |
| 62 | MIB_DESC(2, STATS_TOC, "TxByte"), |
| 63 | MIB_DESC(1, STATS_RDPC, "RxDrop"), |
| 64 | MIB_DESC(1, STATS_RFPC, "RxFiltered"), |
| 65 | MIB_DESC(1, STATS_RUPC, "RxUni"), |
| 66 | MIB_DESC(1, STATS_RMPC, "RxMulti"), |
| 67 | MIB_DESC(1, STATS_RBPC, "RxBroad"), |
| 68 | MIB_DESC(1, STATS_RAEPC, "RxAlignErr"), |
| 69 | MIB_DESC(1, STATS_RCEPC, "RxCRC"), |
| 70 | MIB_DESC(1, STATS_RUSPC, "RxUnderSize"), |
| 71 | MIB_DESC(1, STATS_RFEPC, "RxFragment"), |
| 72 | MIB_DESC(1, STATS_ROSPC, "RxOverSize"), |
| 73 | MIB_DESC(1, STATS_RJEPC, "RxJabber"), |
| 74 | MIB_DESC(1, STATS_RPPC, "RxPause"), |
| 75 | MIB_DESC(1, STATS_RL64PC, "Rx64Byte"), |
| 76 | MIB_DESC(1, STATS_RL65PC, "Rx65Byte"), |
| 77 | MIB_DESC(1, STATS_RL128PC, "Rx128Byte"), |
| 78 | MIB_DESC(1, STATS_RL256PC, "Rx256Byte"), |
| 79 | MIB_DESC(1, STATS_RL512PC, "Rx512Byte"), |
| 80 | MIB_DESC(1, STATS_RL1024PC, "Rx1024Byte"), |
| 81 | MIB_DESC(2, STATS_ROC, "RxByte"), |
| 82 | MIB_DESC(1, STATS_RDPC_CTRL, "RxCtrlDrop"), |
| 83 | MIB_DESC(1, STATS_RDPC_ING, "RxIngDrop"), |
| 84 | MIB_DESC(1, STATS_RDPC_ARL, "RxARLDrop") |
| 85 | }; |
| 86 | |
| 87 | enum { |
| 88 | /* Global attributes. */ |
| 89 | MT753X_ATTR_ENABLE_VLAN, |
| 90 | }; |
| 91 | |
| 92 | static int mt753x_get_vlan_enable(struct switch_dev *dev, |
| 93 | const struct switch_attr *attr, |
| 94 | struct switch_val *val) |
| 95 | { |
| 96 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 97 | |
| 98 | val->value.i = gsw->global_vlan_enable; |
| 99 | |
| 100 | return 0; |
| 101 | } |
| 102 | |
| 103 | static int mt753x_set_vlan_enable(struct switch_dev *dev, |
| 104 | const struct switch_attr *attr, |
| 105 | struct switch_val *val) |
| 106 | { |
| 107 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 108 | |
| 109 | gsw->global_vlan_enable = val->value.i != 0; |
| 110 | |
| 111 | return 0; |
| 112 | } |
| 113 | |
| 114 | static int mt753x_get_port_pvid(struct switch_dev *dev, int port, int *val) |
| 115 | { |
| 116 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 117 | |
| 118 | if (port >= MT753X_NUM_PORTS) |
| 119 | return -EINVAL; |
| 120 | |
| 121 | *val = mt753x_reg_read(gsw, PPBV1(port)); |
| 122 | *val &= GRP_PORT_VID_M; |
| 123 | |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | static int mt753x_set_port_pvid(struct switch_dev *dev, int port, int pvid) |
| 128 | { |
| 129 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 130 | |
| 131 | if (port >= MT753X_NUM_PORTS) |
| 132 | return -EINVAL; |
| 133 | |
| 134 | if (pvid < MT753X_MIN_VID || pvid > MT753X_MAX_VID) |
| 135 | return -EINVAL; |
| 136 | |
| 137 | gsw->port_entries[port].pvid = pvid; |
| 138 | |
| 139 | return 0; |
| 140 | } |
| 141 | |
| 142 | static int mt753x_get_vlan_ports(struct switch_dev *dev, struct switch_val *val) |
| 143 | { |
| 144 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 145 | u32 member; |
| 146 | u32 etags; |
| 147 | int i; |
| 148 | |
| 149 | val->len = 0; |
| 150 | |
| 151 | if (val->port_vlan < 0 || val->port_vlan >= MT753X_NUM_VLANS) |
| 152 | return -EINVAL; |
| 153 | |
| 154 | mt753x_vlan_ctrl(gsw, VTCR_READ_VLAN_ENTRY, val->port_vlan); |
| 155 | |
| 156 | member = mt753x_reg_read(gsw, VAWD1); |
| 157 | member &= PORT_MEM_M; |
| 158 | member >>= PORT_MEM_S; |
| 159 | |
| 160 | etags = mt753x_reg_read(gsw, VAWD2); |
| 161 | |
| 162 | for (i = 0; i < MT753X_NUM_PORTS; i++) { |
| 163 | struct switch_port *p; |
| 164 | int etag; |
| 165 | |
| 166 | if (!(member & BIT(i))) |
| 167 | continue; |
| 168 | |
| 169 | p = &val->value.ports[val->len++]; |
| 170 | p->id = i; |
| 171 | |
| 172 | etag = (etags >> PORT_ETAG_S(i)) & PORT_ETAG_M; |
| 173 | |
| 174 | if (etag == ETAG_CTRL_TAG) |
| 175 | p->flags |= BIT(SWITCH_PORT_FLAG_TAGGED); |
| 176 | else if (etag != ETAG_CTRL_UNTAG) |
| 177 | dev_info(gsw->dev, |
| 178 | "vlan egress tag control neither untag nor tag.\n"); |
| 179 | } |
| 180 | |
| 181 | return 0; |
| 182 | } |
| 183 | |
| 184 | static int mt753x_set_vlan_ports(struct switch_dev *dev, struct switch_val *val) |
| 185 | { |
| 186 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 187 | u8 member = 0; |
| 188 | u8 etags = 0; |
| 189 | int i; |
| 190 | |
| 191 | if (val->port_vlan < 0 || val->port_vlan >= MT753X_NUM_VLANS || |
| 192 | val->len > MT753X_NUM_PORTS) |
| 193 | return -EINVAL; |
| 194 | |
| 195 | for (i = 0; i < val->len; i++) { |
| 196 | struct switch_port *p = &val->value.ports[i]; |
| 197 | |
| 198 | if (p->id >= MT753X_NUM_PORTS) |
| 199 | return -EINVAL; |
| 200 | |
| 201 | member |= BIT(p->id); |
| 202 | |
| 203 | if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED)) |
| 204 | etags |= BIT(p->id); |
| 205 | } |
| 206 | |
| 207 | gsw->vlan_entries[val->port_vlan].member = member; |
| 208 | gsw->vlan_entries[val->port_vlan].etags = etags; |
| 209 | |
| 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | static int mt753x_set_vid(struct switch_dev *dev, |
| 214 | const struct switch_attr *attr, |
| 215 | struct switch_val *val) |
| 216 | { |
| 217 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 218 | int vlan; |
| 219 | u16 vid; |
| 220 | |
| 221 | vlan = val->port_vlan; |
| 222 | vid = (u16)val->value.i; |
| 223 | |
| 224 | if (vlan < 0 || vlan >= MT753X_NUM_VLANS) |
| 225 | return -EINVAL; |
| 226 | |
| 227 | if (vid < MT753X_MIN_VID || vid > MT753X_MAX_VID) |
| 228 | return -EINVAL; |
| 229 | |
| 230 | gsw->vlan_entries[vlan].vid = vid; |
| 231 | return 0; |
| 232 | } |
| 233 | |
| 234 | static int mt753x_get_vid(struct switch_dev *dev, |
| 235 | const struct switch_attr *attr, |
| 236 | struct switch_val *val) |
| 237 | { |
| 238 | val->value.i = val->port_vlan; |
| 239 | return 0; |
| 240 | } |
| 241 | |
| 242 | static int mt753x_get_port_link(struct switch_dev *dev, int port, |
| 243 | struct switch_port_link *link) |
| 244 | { |
| 245 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 246 | u32 speed, pmsr; |
| 247 | |
| 248 | if (port < 0 || port >= MT753X_NUM_PORTS) |
| 249 | return -EINVAL; |
| 250 | |
| 251 | pmsr = mt753x_reg_read(gsw, PMSR(port)); |
| 252 | |
| 253 | link->link = pmsr & MAC_LNK_STS; |
| 254 | link->duplex = pmsr & MAC_DPX_STS; |
| 255 | speed = (pmsr & MAC_SPD_STS_M) >> MAC_SPD_STS_S; |
| 256 | |
| 257 | switch (speed) { |
| 258 | case MAC_SPD_10: |
| 259 | link->speed = SWITCH_PORT_SPEED_10; |
| 260 | break; |
| 261 | case MAC_SPD_100: |
| 262 | link->speed = SWITCH_PORT_SPEED_100; |
| 263 | break; |
| 264 | case MAC_SPD_1000: |
| 265 | link->speed = SWITCH_PORT_SPEED_1000; |
| 266 | break; |
| 267 | case MAC_SPD_2500: |
| 268 | /* TODO: swconfig has no support for 2500 now */ |
| 269 | link->speed = SWITCH_PORT_SPEED_UNKNOWN; |
| 270 | break; |
| 271 | } |
| 272 | |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | static int mt753x_set_port_link(struct switch_dev *dev, int port, |
| 277 | struct switch_port_link *link) |
| 278 | { |
| 279 | #ifndef MODULE |
| 280 | if (port >= MT753X_NUM_PHYS) |
| 281 | return -EINVAL; |
| 282 | |
| 283 | return switch_generic_set_link(dev, port, link); |
| 284 | #else |
| 285 | return -ENOTSUPP; |
| 286 | #endif |
| 287 | } |
| 288 | |
| 289 | static u64 get_mib_counter(struct gsw_mt753x *gsw, int i, int port) |
| 290 | { |
| 291 | unsigned int offset; |
| 292 | u64 lo, hi, hi2; |
| 293 | |
| 294 | offset = mt753x_mibs[i].offset; |
| 295 | |
| 296 | if (mt753x_mibs[i].size == 1) |
| 297 | return mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset)); |
| 298 | |
| 299 | do { |
| 300 | hi = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset + 4)); |
| 301 | lo = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset)); |
| 302 | hi2 = mt753x_reg_read(gsw, MIB_COUNTER_REG(port, offset + 4)); |
| 303 | } while (hi2 != hi); |
| 304 | |
| 305 | return (hi << 32) | lo; |
| 306 | } |
| 307 | |
| 308 | static int mt753x_get_port_mib(struct switch_dev *dev, |
| 309 | const struct switch_attr *attr, |
| 310 | struct switch_val *val) |
| 311 | { |
| 312 | static char buf[4096]; |
| 313 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 314 | int i, len = 0; |
| 315 | |
| 316 | if (val->port_vlan >= MT753X_NUM_PORTS) |
| 317 | return -EINVAL; |
| 318 | |
| 319 | len += snprintf(buf + len, sizeof(buf) - len, |
| 320 | "Port %d MIB counters\n", val->port_vlan); |
| 321 | |
| 322 | for (i = 0; i < ARRAY_SIZE(mt753x_mibs); ++i) { |
| 323 | u64 counter; |
| 324 | |
| 325 | len += snprintf(buf + len, sizeof(buf) - len, |
| 326 | "%-11s: ", mt753x_mibs[i].name); |
| 327 | counter = get_mib_counter(gsw, i, val->port_vlan); |
| 328 | len += snprintf(buf + len, sizeof(buf) - len, "%llu\n", |
| 329 | counter); |
| 330 | } |
| 331 | |
| 332 | val->value.s = buf; |
| 333 | val->len = len; |
| 334 | return 0; |
| 335 | } |
| 336 | |
| 337 | static int mt753x_get_port_stats(struct switch_dev *dev, int port, |
| 338 | struct switch_port_stats *stats) |
| 339 | { |
| 340 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 341 | |
| 342 | if (port < 0 || port >= MT753X_NUM_PORTS) |
| 343 | return -EINVAL; |
| 344 | |
| 345 | stats->tx_bytes = get_mib_counter(gsw, MT753X_PORT_MIB_TXB_ID, port); |
| 346 | stats->rx_bytes = get_mib_counter(gsw, MT753X_PORT_MIB_RXB_ID, port); |
| 347 | |
| 348 | return 0; |
| 349 | } |
| 350 | |
| 351 | static void mt753x_port_isolation(struct gsw_mt753x *gsw) |
| 352 | { |
| 353 | int i; |
| 354 | |
| 355 | for (i = 0; i < MT753X_NUM_PORTS; i++) |
| 356 | mt753x_reg_write(gsw, PCR(i), |
| 357 | BIT(gsw->cpu_port) << PORT_MATRIX_S); |
| 358 | |
| 359 | mt753x_reg_write(gsw, PCR(gsw->cpu_port), PORT_MATRIX_M); |
| 360 | |
| 361 | for (i = 0; i < MT753X_NUM_PORTS; i++) { |
| 362 | u32 pvc_mode = 0x8100 << STAG_VPID_S; |
| 363 | |
| 364 | if ((gsw->port5_cfg.stag_on && i == 5) || |
| 365 | (gsw->port6_cfg.stag_on && i == 6)) |
| 366 | pvc_mode |= PVC_PORT_STAG; |
| 367 | else |
| 368 | pvc_mode |= (VA_TRANSPARENT_PORT << VLAN_ATTR_S); |
| 369 | |
| 370 | mt753x_reg_write(gsw, PVC(i), pvc_mode); |
| 371 | } |
| 372 | } |
| 373 | |
| 374 | static int mt753x_apply_config(struct switch_dev *dev) |
| 375 | { |
| 376 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 377 | |
| 378 | if (!gsw->global_vlan_enable) { |
| 379 | mt753x_port_isolation(gsw); |
| 380 | return 0; |
| 381 | } |
| 382 | |
| 383 | mt753x_apply_vlan_config(gsw); |
| 384 | |
| 385 | return 0; |
| 386 | } |
| 387 | |
| 388 | static int mt753x_reset_switch(struct switch_dev *dev) |
| 389 | { |
| 390 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 391 | int i; |
| 392 | |
| 393 | memset(gsw->port_entries, 0, sizeof(gsw->port_entries)); |
| 394 | memset(gsw->vlan_entries, 0, sizeof(gsw->vlan_entries)); |
| 395 | |
| 396 | /* set default vid of each vlan to the same number of vlan, so the vid |
| 397 | * won't need be set explicitly. |
| 398 | */ |
| 399 | for (i = 0; i < MT753X_NUM_VLANS; i++) |
| 400 | gsw->vlan_entries[i].vid = i; |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
| 405 | static int mt753x_phy_read16(struct switch_dev *dev, int addr, u8 reg, |
| 406 | u16 *value) |
| 407 | { |
| 408 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 409 | |
| 410 | *value = gsw->mii_read(gsw, addr, reg); |
| 411 | |
| 412 | return 0; |
| 413 | } |
| 414 | |
| 415 | static int mt753x_phy_write16(struct switch_dev *dev, int addr, u8 reg, |
| 416 | u16 value) |
| 417 | { |
| 418 | struct gsw_mt753x *gsw = container_of(dev, struct gsw_mt753x, swdev); |
| 419 | |
| 420 | gsw->mii_write(gsw, addr, reg, value); |
| 421 | |
| 422 | return 0; |
| 423 | } |
| 424 | |
| 425 | static const struct switch_attr mt753x_global[] = { |
| 426 | { |
| 427 | .type = SWITCH_TYPE_INT, |
| 428 | .name = "enable_vlan", |
| 429 | .description = "VLAN mode (1:enabled)", |
| 430 | .max = 1, |
| 431 | .id = MT753X_ATTR_ENABLE_VLAN, |
| 432 | .get = mt753x_get_vlan_enable, |
| 433 | .set = mt753x_set_vlan_enable, |
| 434 | } |
| 435 | }; |
| 436 | |
| 437 | static const struct switch_attr mt753x_port[] = { |
| 438 | { |
| 439 | .type = SWITCH_TYPE_STRING, |
| 440 | .name = "mib", |
| 441 | .description = "Get MIB counters for port", |
| 442 | .get = mt753x_get_port_mib, |
| 443 | .set = NULL, |
| 444 | }, |
| 445 | }; |
| 446 | |
| 447 | static const struct switch_attr mt753x_vlan[] = { |
| 448 | { |
| 449 | .type = SWITCH_TYPE_INT, |
| 450 | .name = "vid", |
| 451 | .description = "VLAN ID (0-4094)", |
| 452 | .set = mt753x_set_vid, |
| 453 | .get = mt753x_get_vid, |
| 454 | .max = 4094, |
| 455 | }, |
| 456 | }; |
| 457 | |
| 458 | static const struct switch_dev_ops mt753x_swdev_ops = { |
| 459 | .attr_global = { |
| 460 | .attr = mt753x_global, |
| 461 | .n_attr = ARRAY_SIZE(mt753x_global), |
| 462 | }, |
| 463 | .attr_port = { |
| 464 | .attr = mt753x_port, |
| 465 | .n_attr = ARRAY_SIZE(mt753x_port), |
| 466 | }, |
| 467 | .attr_vlan = { |
| 468 | .attr = mt753x_vlan, |
| 469 | .n_attr = ARRAY_SIZE(mt753x_vlan), |
| 470 | }, |
| 471 | .get_vlan_ports = mt753x_get_vlan_ports, |
| 472 | .set_vlan_ports = mt753x_set_vlan_ports, |
| 473 | .get_port_pvid = mt753x_get_port_pvid, |
| 474 | .set_port_pvid = mt753x_set_port_pvid, |
| 475 | .get_port_link = mt753x_get_port_link, |
| 476 | .set_port_link = mt753x_set_port_link, |
| 477 | .get_port_stats = mt753x_get_port_stats, |
| 478 | .apply_config = mt753x_apply_config, |
| 479 | .reset_switch = mt753x_reset_switch, |
| 480 | .phy_read16 = mt753x_phy_read16, |
| 481 | .phy_write16 = mt753x_phy_write16, |
| 482 | }; |
| 483 | |
| 484 | int mt753x_swconfig_init(struct gsw_mt753x *gsw) |
| 485 | { |
| 486 | struct device_node *np = gsw->dev->of_node; |
| 487 | struct switch_dev *swdev; |
| 488 | int ret; |
| 489 | |
| 490 | if (of_property_read_u32(np, "mediatek,cpuport", &gsw->cpu_port)) |
| 491 | gsw->cpu_port = MT753X_DFL_CPU_PORT; |
| 492 | |
| 493 | swdev = &gsw->swdev; |
| 494 | |
| 495 | swdev->name = gsw->name; |
| 496 | swdev->alias = gsw->name; |
| 497 | swdev->cpu_port = gsw->cpu_port; |
| 498 | swdev->ports = MT753X_NUM_PORTS; |
| 499 | swdev->vlans = MT753X_NUM_VLANS; |
| 500 | swdev->ops = &mt753x_swdev_ops; |
| 501 | |
| 502 | ret = register_switch(swdev, NULL); |
| 503 | if (ret) { |
| 504 | dev_notice(gsw->dev, "Failed to register switch %s\n", |
| 505 | swdev->name); |
| 506 | return ret; |
| 507 | } |
| 508 | |
| 509 | mt753x_apply_config(swdev); |
| 510 | |
| 511 | return 0; |
| 512 | } |
| 513 | |
| 514 | void mt753x_swconfig_destroy(struct gsw_mt753x *gsw) |
| 515 | { |
| 516 | unregister_switch(&gsw->swdev); |
| 517 | } |