Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 | // SPDX-License-Identifier: GPL-2.0-only /* * IBM Accelerator Family 'GenWQE' * * (C) Copyright IBM Corp. 2013 * * Author: Frank Haverkamp <haver@linux.vnet.ibm.com> * Author: Joerg-Stephan Vogt <jsvogt@de.ibm.com> * Author: Michael Jung <mijung@gmx.net> * Author: Michael Ruettger <michael@ibmra.de> */ /* * Debugfs interfaces for the GenWQE card. Help to debug potential * problems. Dump internal chip state for debugging and failure * determination. */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/debugfs.h> #include <linux/seq_file.h> #include <linux/uaccess.h> #include "card_base.h" #include "card_ddcb.h" static void dbg_uidn_show(struct seq_file *s, struct genwqe_reg *regs, int entries) { unsigned int i; u32 v_hi, v_lo; for (i = 0; i < entries; i++) { v_hi = (regs[i].val >> 32) & 0xffffffff; v_lo = (regs[i].val) & 0xffffffff; seq_printf(s, " 0x%08x 0x%08x 0x%08x 0x%08x EXT_ERR_REC\n", regs[i].addr, regs[i].idx, v_hi, v_lo); } } static int curr_dbg_uidn_show(struct seq_file *s, void *unused, int uid) { struct genwqe_dev *cd = s->private; int entries; struct genwqe_reg *regs; entries = genwqe_ffdc_buff_size(cd, uid); if (entries < 0) return -EINVAL; if (entries == 0) return 0; regs = kcalloc(entries, sizeof(*regs), GFP_KERNEL); if (regs == NULL) return -ENOMEM; genwqe_stop_traps(cd); /* halt the traps while dumping data */ genwqe_ffdc_buff_read(cd, uid, regs, entries); genwqe_start_traps(cd); dbg_uidn_show(s, regs, entries); kfree(regs); return 0; } static int curr_dbg_uid0_show(struct seq_file *s, void *unused) { return curr_dbg_uidn_show(s, unused, 0); } DEFINE_SHOW_ATTRIBUTE(curr_dbg_uid0); static int curr_dbg_uid1_show(struct seq_file *s, void *unused) { return curr_dbg_uidn_show(s, unused, 1); } DEFINE_SHOW_ATTRIBUTE(curr_dbg_uid1); static int curr_dbg_uid2_show(struct seq_file *s, void *unused) { return curr_dbg_uidn_show(s, unused, 2); } DEFINE_SHOW_ATTRIBUTE(curr_dbg_uid2); static int prev_dbg_uidn_show(struct seq_file *s, void *unused, int uid) { struct genwqe_dev *cd = s->private; dbg_uidn_show(s, cd->ffdc[uid].regs, cd->ffdc[uid].entries); return 0; } static int prev_dbg_uid0_show(struct seq_file *s, void *unused) { return prev_dbg_uidn_show(s, unused, 0); } DEFINE_SHOW_ATTRIBUTE(prev_dbg_uid0); static int prev_dbg_uid1_show(struct seq_file *s, void *unused) { return prev_dbg_uidn_show(s, unused, 1); } DEFINE_SHOW_ATTRIBUTE(prev_dbg_uid1); static int prev_dbg_uid2_show(struct seq_file *s, void *unused) { return prev_dbg_uidn_show(s, unused, 2); } DEFINE_SHOW_ATTRIBUTE(prev_dbg_uid2); static int curr_regs_show(struct seq_file *s, void *unused) { struct genwqe_dev *cd = s->private; unsigned int i; struct genwqe_reg *regs; regs = kcalloc(GENWQE_FFDC_REGS, sizeof(*regs), GFP_KERNEL); if (regs == NULL) return -ENOMEM; genwqe_stop_traps(cd); genwqe_read_ffdc_regs(cd, regs, GENWQE_FFDC_REGS, 1); genwqe_start_traps(cd); for (i = 0; i < GENWQE_FFDC_REGS; i++) { if (regs[i].addr == 0xffffffff) break; /* invalid entries */ if (regs[i].val == 0x0ull) continue; /* do not print 0x0 FIRs */ seq_printf(s, " 0x%08x 0x%016llx\n", regs[i].addr, regs[i].val); } return 0; } DEFINE_SHOW_ATTRIBUTE(curr_regs); static int prev_regs_show(struct seq_file *s, void *unused) { struct genwqe_dev *cd = s->private; unsigned int i; struct genwqe_reg *regs = cd->ffdc[GENWQE_DBG_REGS].regs; if (regs == NULL) return -EINVAL; for (i = 0; i < GENWQE_FFDC_REGS; i++) { if (regs[i].addr == 0xffffffff) break; /* invalid entries */ if (regs[i].val == 0x0ull) continue; /* do not print 0x0 FIRs */ seq_printf(s, " 0x%08x 0x%016llx\n", regs[i].addr, regs[i].val); } return 0; } DEFINE_SHOW_ATTRIBUTE(prev_regs); static int jtimer_show(struct seq_file *s, void *unused) { struct genwqe_dev *cd = s->private; unsigned int vf_num; u64 jtimer; jtimer = genwqe_read_vreg(cd, IO_SLC_VF_APPJOB_TIMEOUT, 0); seq_printf(s, " PF 0x%016llx %d msec\n", jtimer, GENWQE_PF_JOBTIMEOUT_MSEC); for (vf_num = 0; vf_num < cd->num_vfs; vf_num++) { jtimer = genwqe_read_vreg(cd, IO_SLC_VF_APPJOB_TIMEOUT, vf_num + 1); seq_printf(s, " VF%-2d 0x%016llx %d msec\n", vf_num, jtimer, cd->vf_jobtimeout_msec[vf_num]); } return 0; } DEFINE_SHOW_ATTRIBUTE(jtimer); static int queue_working_time_show(struct seq_file *s, void *unused) { struct genwqe_dev *cd = s->private; unsigned int vf_num; u64 t; t = genwqe_read_vreg(cd, IO_SLC_VF_QUEUE_WTIME, 0); seq_printf(s, " PF 0x%016llx\n", t); for (vf_num = 0; vf_num < cd->num_vfs; vf_num++) { t = genwqe_read_vreg(cd, IO_SLC_VF_QUEUE_WTIME, vf_num + 1); seq_printf(s, " VF%-2d 0x%016llx\n", vf_num, t); } return 0; } DEFINE_SHOW_ATTRIBUTE(queue_working_time); static int ddcb_info_show(struct seq_file *s, void *unused) { struct genwqe_dev *cd = s->private; unsigned int i; struct ddcb_queue *queue; struct ddcb *pddcb; queue = &cd->queue; seq_puts(s, "DDCB QUEUE:\n"); seq_printf(s, " ddcb_max: %d\n" " ddcb_daddr: %016llx - %016llx\n" " ddcb_vaddr: %p\n" " ddcbs_in_flight: %u\n" " ddcbs_max_in_flight: %u\n" " ddcbs_completed: %u\n" " return_on_busy: %u\n" " wait_on_busy: %u\n" " irqs_processed: %u\n", queue->ddcb_max, (long long)queue->ddcb_daddr, (long long)queue->ddcb_daddr + (queue->ddcb_max * DDCB_LENGTH), queue->ddcb_vaddr, queue->ddcbs_in_flight, queue->ddcbs_max_in_flight, queue->ddcbs_completed, queue->return_on_busy, queue->wait_on_busy, cd->irqs_processed); /* Hardware State */ seq_printf(s, " 0x%08x 0x%016llx IO_QUEUE_CONFIG\n" " 0x%08x 0x%016llx IO_QUEUE_STATUS\n" " 0x%08x 0x%016llx IO_QUEUE_SEGMENT\n" " 0x%08x 0x%016llx IO_QUEUE_INITSQN\n" " 0x%08x 0x%016llx IO_QUEUE_WRAP\n" " 0x%08x 0x%016llx IO_QUEUE_OFFSET\n" " 0x%08x 0x%016llx IO_QUEUE_WTIME\n" " 0x%08x 0x%016llx IO_QUEUE_ERRCNTS\n" " 0x%08x 0x%016llx IO_QUEUE_LRW\n", queue->IO_QUEUE_CONFIG, __genwqe_readq(cd, queue->IO_QUEUE_CONFIG), queue->IO_QUEUE_STATUS, __genwqe_readq(cd, queue->IO_QUEUE_STATUS), queue->IO_QUEUE_SEGMENT, __genwqe_readq(cd, queue->IO_QUEUE_SEGMENT), queue->IO_QUEUE_INITSQN, __genwqe_readq(cd, queue->IO_QUEUE_INITSQN), queue->IO_QUEUE_WRAP, __genwqe_readq(cd, queue->IO_QUEUE_WRAP), queue->IO_QUEUE_OFFSET, __genwqe_readq(cd, queue->IO_QUEUE_OFFSET), queue->IO_QUEUE_WTIME, __genwqe_readq(cd, queue->IO_QUEUE_WTIME), queue->IO_QUEUE_ERRCNTS, __genwqe_readq(cd, queue->IO_QUEUE_ERRCNTS), queue->IO_QUEUE_LRW, __genwqe_readq(cd, queue->IO_QUEUE_LRW)); seq_printf(s, "DDCB list (ddcb_act=%d/ddcb_next=%d):\n", queue->ddcb_act, queue->ddcb_next); pddcb = queue->ddcb_vaddr; for (i = 0; i < queue->ddcb_max; i++) { seq_printf(s, " %-3d: RETC=%03x SEQ=%04x HSI/SHI=%02x/%02x ", i, be16_to_cpu(pddcb->retc_16), be16_to_cpu(pddcb->seqnum_16), pddcb->hsi, pddcb->shi); seq_printf(s, "PRIV=%06llx CMD=%02x\n", be64_to_cpu(pddcb->priv_64), pddcb->cmd); pddcb++; } return 0; } DEFINE_SHOW_ATTRIBUTE(ddcb_info); static int info_show(struct seq_file *s, void *unused) { struct genwqe_dev *cd = s->private; u64 app_id, slu_id, bitstream = -1; struct pci_dev *pci_dev = cd->pci_dev; slu_id = __genwqe_readq(cd, IO_SLU_UNITCFG); app_id = __genwqe_readq(cd, IO_APP_UNITCFG); if (genwqe_is_privileged(cd)) bitstream = __genwqe_readq(cd, IO_SLU_BITSTREAM); seq_printf(s, "%s driver version: %s\n" " Device Name/Type: %s %s CardIdx: %d\n" " SLU/APP Config : 0x%016llx/0x%016llx\n" " Build Date : %u/%x/%u\n" " Base Clock : %u MHz\n" " Arch/SVN Release: %u/%llx\n" " Bitstream : %llx\n", GENWQE_DEVNAME, DRV_VERSION, dev_name(&pci_dev->dev), genwqe_is_privileged(cd) ? "Physical" : "Virtual or no SR-IOV", cd->card_idx, slu_id, app_id, (u16)((slu_id >> 12) & 0x0fLLU), /* month */ (u16)((slu_id >> 4) & 0xffLLU), /* day */ (u16)((slu_id >> 16) & 0x0fLLU) + 2010, /* year */ genwqe_base_clock_frequency(cd), (u16)((slu_id >> 32) & 0xffLLU), slu_id >> 40, bitstream); return 0; } DEFINE_SHOW_ATTRIBUTE(info); void genwqe_init_debugfs(struct genwqe_dev *cd) { struct dentry *root; char card_name[64]; char name[64]; unsigned int i; sprintf(card_name, "%s%d_card", GENWQE_DEVNAME, cd->card_idx); root = debugfs_create_dir(card_name, cd->debugfs_genwqe); /* non privileged interfaces are done here */ debugfs_create_file("ddcb_info", S_IRUGO, root, cd, &ddcb_info_fops); debugfs_create_file("info", S_IRUGO, root, cd, &info_fops); debugfs_create_x64("err_inject", 0666, root, &cd->err_inject); debugfs_create_u32("ddcb_software_timeout", 0666, root, &cd->ddcb_software_timeout); debugfs_create_u32("kill_timeout", 0666, root, &cd->kill_timeout); /* privileged interfaces follow here */ if (!genwqe_is_privileged(cd)) { cd->debugfs_root = root; return; } debugfs_create_file("curr_regs", S_IRUGO, root, cd, &curr_regs_fops); debugfs_create_file("curr_dbg_uid0", S_IRUGO, root, cd, &curr_dbg_uid0_fops); debugfs_create_file("curr_dbg_uid1", S_IRUGO, root, cd, &curr_dbg_uid1_fops); debugfs_create_file("curr_dbg_uid2", S_IRUGO, root, cd, &curr_dbg_uid2_fops); debugfs_create_file("prev_regs", S_IRUGO, root, cd, &prev_regs_fops); debugfs_create_file("prev_dbg_uid0", S_IRUGO, root, cd, &prev_dbg_uid0_fops); debugfs_create_file("prev_dbg_uid1", S_IRUGO, root, cd, &prev_dbg_uid1_fops); debugfs_create_file("prev_dbg_uid2", S_IRUGO, root, cd, &prev_dbg_uid2_fops); for (i = 0; i < GENWQE_MAX_VFS; i++) { sprintf(name, "vf%u_jobtimeout_msec", i); debugfs_create_u32(name, 0666, root, &cd->vf_jobtimeout_msec[i]); } debugfs_create_file("jobtimer", S_IRUGO, root, cd, &jtimer_fops); debugfs_create_file("queue_working_time", S_IRUGO, root, cd, &queue_working_time_fops); debugfs_create_u32("skip_recovery", 0666, root, &cd->skip_recovery); debugfs_create_u32("use_platform_recovery", 0666, root, &cd->use_platform_recovery); cd->debugfs_root = root; } void genqwe_exit_debugfs(struct genwqe_dev *cd) { debugfs_remove_recursive(cd->debugfs_root); } |