drivers/net/wireless/intel/iwlwifi/mvm/utils.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  10  * Copyright (C) 2015 Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
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  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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  22  * along with this program; if not, write to the Free Software
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  27  * in the file called COPYING.
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  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
  37  * All rights reserved.
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  40  * modification, are permitted provided that the following conditions
  41  * are met:
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  43  *  * Redistributions of source code must retain the above copyright
  44  *    notice, this list of conditions and the following disclaimer.
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  46  *    notice, this list of conditions and the following disclaimer in
  47  *    the documentation and/or other materials provided with the
  48  *    distribution.
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  50  *    contributors may be used to endorse or promote products derived
  51  *    from this software without specific prior written permission.
  52  *
  53  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  54  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  55  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  56  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  57  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  58  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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  61  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  62  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  63  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  64  *
  65  *****************************************************************************/
  66 #include <net/mac80211.h>
  67
  68 #include "iwl-debug.h"
  69 #include "iwl-io.h"
  70 #include "iwl-prph.h"
  71 #include "fw-dbg.h"
  72 #include "mvm.h"
  73 #include "fw-api-rs.h"
  74
  75 /*
  76  * Will return 0 even if the cmd failed when RFKILL is asserted unless
  77  * CMD_WANT_SKB is set in cmd->flags.
  78  */
  79 int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd)
  80 {
  81         int ret;
  82
  83 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
  84         if (WARN_ON(mvm->d3_test_active))
  85                 return -EIO;
  86 #endif
  87
  88         /*
  89          * Synchronous commands from this op-mode must hold
  90          * the mutex, this ensures we don't try to send two
  91          * (or more) synchronous commands at a time.
  92          */
  93         if (!(cmd->flags & CMD_ASYNC))
  94                 lockdep_assert_held(&mvm->mutex);
  95
  96         ret = iwl_trans_send_cmd(mvm->trans, cmd);
  97
  98         /*
  99          * If the caller wants the SKB, then don't hide any problems, the
 100          * caller might access the response buffer which will be NULL if
 101          * the command failed.
 102          */
 103         if (cmd->flags & CMD_WANT_SKB)
 104                 return ret;
 105
 106         /* Silently ignore failures if RFKILL is asserted */
 107         if (!ret || ret == -ERFKILL)
 108                 return 0;
 109         return ret;
 110 }
 111
 112 int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u32 id,
 113                          u32 flags, u16 len, const void *data)
 114 {
 115         struct iwl_host_cmd cmd = {
 116                 .id = id,
 117                 .len = { len, },
 118                 .data = { data, },
 119                 .flags = flags,
 120         };
 121
 122         return iwl_mvm_send_cmd(mvm, &cmd);
 123 }
 124
 125 /*
 126  * We assume that the caller set the status to the success value
 127  */
 128 int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd,
 129                             u32 *status)
 130 {
 131         struct iwl_rx_packet *pkt;
 132         struct iwl_cmd_response *resp;
 133         int ret, resp_len;
 134
 135         lockdep_assert_held(&mvm->mutex);
 136
 137 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
 138         if (WARN_ON(mvm->d3_test_active))
 139                 return -EIO;
 140 #endif
 141
 142         /*
 143          * Only synchronous commands can wait for status,
 144          * we use WANT_SKB so the caller can't.
 145          */
 146         if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB),
 147                       "cmd flags %x", cmd->flags))
 148                 return -EINVAL;
 149
 150         cmd->flags |= CMD_WANT_SKB;
 151
 152         ret = iwl_trans_send_cmd(mvm->trans, cmd);
 153         if (ret == -ERFKILL) {
 154                 /*
 155                  * The command failed because of RFKILL, don't update
 156                  * the status, leave it as success and return 0.
 157                  */
 158                 return 0;
 159         } else if (ret) {
 160                 return ret;
 161         }
 162
 163         pkt = cmd->resp_pkt;
 164         /* Can happen if RFKILL is asserted */
 165         if (!pkt) {
 166                 ret = 0;
 167                 goto out_free_resp;
 168         }
 169
 170         resp_len = iwl_rx_packet_payload_len(pkt);
 171         if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
 172                 ret = -EIO;
 173                 goto out_free_resp;
 174         }
 175
 176         resp = (void *)pkt->data;
 177         *status = le32_to_cpu(resp->status);
 178  out_free_resp:
 179         iwl_free_resp(cmd);
 180         return ret;
 181 }
 182
 183 /*
 184  * We assume that the caller set the status to the sucess value
 185  */
 186 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u32 id, u16 len,
 187                                 const void *data, u32 *status)
 188 {
 189         struct iwl_host_cmd cmd = {
 190                 .id = id,
 191                 .len = { len, },
 192                 .data = { data, },
 193         };
 194
 195         return iwl_mvm_send_cmd_status(mvm, &cmd, status);
 196 }
 197
 198 #define IWL_DECLARE_RATE_INFO(r) \
 199         [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP
 200
 201 /*
 202  * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP
 203  */
 204 static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = {
 205         IWL_DECLARE_RATE_INFO(1),
 206         IWL_DECLARE_RATE_INFO(2),
 207         IWL_DECLARE_RATE_INFO(5),
 208         IWL_DECLARE_RATE_INFO(11),
 209         IWL_DECLARE_RATE_INFO(6),
 210         IWL_DECLARE_RATE_INFO(9),
 211         IWL_DECLARE_RATE_INFO(12),
 212         IWL_DECLARE_RATE_INFO(18),
 213         IWL_DECLARE_RATE_INFO(24),
 214         IWL_DECLARE_RATE_INFO(36),
 215         IWL_DECLARE_RATE_INFO(48),
 216         IWL_DECLARE_RATE_INFO(54),
 217 };
 218
 219 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
 220                                         enum nl80211_band band)
 221 {
 222         int rate = rate_n_flags & RATE_LEGACY_RATE_MSK;
 223         int idx;
 224         int band_offset = 0;
 225
 226         /* Legacy rate format, search for match in table */
 227         if (band == NL80211_BAND_5GHZ)
 228                 band_offset = IWL_FIRST_OFDM_RATE;
 229         for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
 230                 if (fw_rate_idx_to_plcp[idx] == rate)
 231                         return idx - band_offset;
 232
 233         return -1;
 234 }
 235
 236 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx)
 237 {
 238         /* Get PLCP rate for tx_cmd->rate_n_flags */
 239         return fw_rate_idx_to_plcp[rate_idx];
 240 }
 241
 242 void iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
 243 {
 244         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 245         struct iwl_error_resp *err_resp = (void *)pkt->data;
 246
 247         IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n",
 248                 le32_to_cpu(err_resp->error_type), err_resp->cmd_id);
 249         IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n",
 250                 le16_to_cpu(err_resp->bad_cmd_seq_num),
 251                 le32_to_cpu(err_resp->error_service));
 252         IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n",
 253                 le64_to_cpu(err_resp->timestamp));
 254 }
 255
 256 /*
 257  * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h.
 258  * The parameter should also be a combination of ANT_[ABC].
 259  */
 260 u8 first_antenna(u8 mask)
 261 {
 262         BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */
 263         if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */
 264                 return BIT(0);
 265         return BIT(ffs(mask) - 1);
 266 }
 267
 268 /*
 269  * Toggles between TX antennas to send the probe request on.
 270  * Receives the bitmask of valid TX antennas and the *index* used
 271  * for the last TX, and returns the next valid *index* to use.
 272  * In order to set it in the tx_cmd, must do BIT(idx).
 273  */
 274 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx)
 275 {
 276         u8 ind = last_idx;
 277         int i;
 278
 279         for (i = 0; i < RATE_MCS_ANT_NUM; i++) {
 280                 ind = (ind + 1) % RATE_MCS_ANT_NUM;
 281                 if (valid & BIT(ind))
 282                         return ind;
 283         }
 284
 285         WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid);
 286         return last_idx;
 287 }
 288
 289 static const struct {
 290         const char *name;
 291         u8 num;
 292 } advanced_lookup[] = {
 293         { "NMI_INTERRUPT_WDG", 0x34 },
 294         { "SYSASSERT", 0x35 },
 295         { "UCODE_VERSION_MISMATCH", 0x37 },
 296         { "BAD_COMMAND", 0x38 },
 297         { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
 298         { "FATAL_ERROR", 0x3D },
 299         { "NMI_TRM_HW_ERR", 0x46 },
 300         { "NMI_INTERRUPT_TRM", 0x4C },
 301         { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
 302         { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
 303         { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
 304         { "NMI_INTERRUPT_HOST", 0x66 },
 305         { "NMI_INTERRUPT_ACTION_PT", 0x7C },
 306         { "NMI_INTERRUPT_UNKNOWN", 0x84 },
 307         { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
 308         { "ADVANCED_SYSASSERT", 0 },
 309 };
 310
 311 static const char *desc_lookup(u32 num)
 312 {
 313         int i;
 314
 315         for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++)
 316                 if (advanced_lookup[i].num == num)
 317                         return advanced_lookup[i].name;
 318
 319         /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */
 320         return advanced_lookup[i].name;
 321 }
 322
 323 /*
 324  * Note: This structure is read from the device with IO accesses,
 325  * and the reading already does the endian conversion. As it is
 326  * read with u32-sized accesses, any members with a different size
 327  * need to be ordered correctly though!
 328  */
 329 struct iwl_error_event_table_v1 {
 330         u32 valid;              /* (nonzero) valid, (0) log is empty */
 331         u32 error_id;           /* type of error */
 332         u32 pc;                 /* program counter */
 333         u32 blink1;             /* branch link */
 334         u32 blink2;             /* branch link */
 335         u32 ilink1;             /* interrupt link */
 336         u32 ilink2;             /* interrupt link */
 337         u32 data1;              /* error-specific data */
 338         u32 data2;              /* error-specific data */
 339         u32 data3;              /* error-specific data */
 340         u32 bcon_time;          /* beacon timer */
 341         u32 tsf_low;            /* network timestamp function timer */
 342         u32 tsf_hi;             /* network timestamp function timer */
 343         u32 gp1;                /* GP1 timer register */
 344         u32 gp2;                /* GP2 timer register */
 345         u32 gp3;                /* GP3 timer register */
 346         u32 ucode_ver;          /* uCode version */
 347         u32 hw_ver;             /* HW Silicon version */
 348         u32 brd_ver;            /* HW board version */
 349         u32 log_pc;             /* log program counter */
 350         u32 frame_ptr;          /* frame pointer */
 351         u32 stack_ptr;          /* stack pointer */
 352         u32 hcmd;               /* last host command header */
 353         u32 isr0;               /* isr status register LMPM_NIC_ISR0:
 354                                  * rxtx_flag */
 355         u32 isr1;               /* isr status register LMPM_NIC_ISR1:
 356                                  * host_flag */
 357         u32 isr2;               /* isr status register LMPM_NIC_ISR2:
 358                                  * enc_flag */
 359         u32 isr3;               /* isr status register LMPM_NIC_ISR3:
 360                                  * time_flag */
 361         u32 isr4;               /* isr status register LMPM_NIC_ISR4:
 362                                  * wico interrupt */
 363         u32 isr_pref;           /* isr status register LMPM_NIC_PREF_STAT */
 364         u32 wait_event;         /* wait event() caller address */
 365         u32 l2p_control;        /* L2pControlField */
 366         u32 l2p_duration;       /* L2pDurationField */
 367         u32 l2p_mhvalid;        /* L2pMhValidBits */
 368         u32 l2p_addr_match;     /* L2pAddrMatchStat */
 369         u32 lmpm_pmg_sel;       /* indicate which clocks are turned on
 370                                  * (LMPM_PMG_SEL) */
 371         u32 u_timestamp;        /* indicate when the date and time of the
 372                                  * compilation */
 373         u32 flow_handler;       /* FH read/write pointers, RX credit */
 374 } __packed /* LOG_ERROR_TABLE_API_S_VER_1 */;
 375
 376 struct iwl_error_event_table {
 377         u32 valid;              /* (nonzero) valid, (0) log is empty */
 378         u32 error_id;           /* type of error */
 379         u32 trm_hw_status0;     /* TRM HW status */
 380         u32 trm_hw_status1;     /* TRM HW status */
 381         u32 blink2;             /* branch link */
 382         u32 ilink1;             /* interrupt link */
 383         u32 ilink2;             /* interrupt link */
 384         u32 data1;              /* error-specific data */
 385         u32 data2;              /* error-specific data */
 386         u32 data3;              /* error-specific data */
 387         u32 bcon_time;          /* beacon timer */
 388         u32 tsf_low;            /* network timestamp function timer */
 389         u32 tsf_hi;             /* network timestamp function timer */
 390         u32 gp1;                /* GP1 timer register */
 391         u32 gp2;                /* GP2 timer register */
 392         u32 fw_rev_type;        /* firmware revision type */
 393         u32 major;              /* uCode version major */
 394         u32 minor;              /* uCode version minor */
 395         u32 hw_ver;             /* HW Silicon version */
 396         u32 brd_ver;            /* HW board version */
 397         u32 log_pc;             /* log program counter */
 398         u32 frame_ptr;          /* frame pointer */
 399         u32 stack_ptr;          /* stack pointer */
 400         u32 hcmd;               /* last host command header */
 401         u32 isr0;               /* isr status register LMPM_NIC_ISR0:
 402                                  * rxtx_flag */
 403         u32 isr1;               /* isr status register LMPM_NIC_ISR1:
 404                                  * host_flag */
 405         u32 isr2;               /* isr status register LMPM_NIC_ISR2:
 406                                  * enc_flag */
 407         u32 isr3;               /* isr status register LMPM_NIC_ISR3:
 408                                  * time_flag */
 409         u32 isr4;               /* isr status register LMPM_NIC_ISR4:
 410                                  * wico interrupt */
 411         u32 last_cmd_id;        /* last HCMD id handled by the firmware */
 412         u32 wait_event;         /* wait event() caller address */
 413         u32 l2p_control;        /* L2pControlField */
 414         u32 l2p_duration;       /* L2pDurationField */
 415         u32 l2p_mhvalid;        /* L2pMhValidBits */
 416         u32 l2p_addr_match;     /* L2pAddrMatchStat */
 417         u32 lmpm_pmg_sel;       /* indicate which clocks are turned on
 418                                  * (LMPM_PMG_SEL) */
 419         u32 u_timestamp;        /* indicate when the date and time of the
 420                                  * compilation */
 421         u32 flow_handler;       /* FH read/write pointers, RX credit */
 422 } __packed /* LOG_ERROR_TABLE_API_S_VER_3 */;
 423
 424 /*
 425  * UMAC error struct - relevant starting from family 8000 chip.
 426  * Note: This structure is read from the device with IO accesses,
 427  * and the reading already does the endian conversion. As it is
 428  * read with u32-sized accesses, any members with a different size
 429  * need to be ordered correctly though!
 430  */
 431 struct iwl_umac_error_event_table {
 432         u32 valid;              /* (nonzero) valid, (0) log is empty */
 433         u32 error_id;           /* type of error */
 434         u32 blink1;             /* branch link */
 435         u32 blink2;             /* branch link */
 436         u32 ilink1;             /* interrupt link */
 437         u32 ilink2;             /* interrupt link */
 438         u32 data1;              /* error-specific data */
 439         u32 data2;              /* error-specific data */
 440         u32 data3;              /* error-specific data */
 441         u32 umac_major;
 442         u32 umac_minor;
 443         u32 frame_pointer;      /* core register 27*/
 444         u32 stack_pointer;      /* core register 28 */
 445         u32 cmd_header;         /* latest host cmd sent to UMAC */
 446         u32 nic_isr_pref;       /* ISR status register */
 447 } __packed;
 448
 449 #define ERROR_START_OFFSET  (1 * sizeof(u32))
 450 #define ERROR_ELEM_SIZE     (7 * sizeof(u32))
 451
 452 static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm)
 453 {
 454         struct iwl_trans *trans = mvm->trans;
 455         struct iwl_umac_error_event_table table;
 456         u32 base;
 457
 458         base = mvm->umac_error_event_table;
 459
 460         if (base < 0x800000) {
 461                 IWL_ERR(mvm,
 462                         "Not valid error log pointer 0x%08X for %s uCode\n",
 463                         base,
 464                         (mvm->cur_ucode == IWL_UCODE_INIT)
 465                                         ? "Init" : "RT");
 466                 return;
 467         }
 468
 469         iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
 470
 471         if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
 472                 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
 473                 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
 474                         mvm->status, table.valid);
 475         }
 476
 477         IWL_ERR(mvm, "0x%08X | %s\n", table.error_id,
 478                 desc_lookup(table.error_id));
 479         IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1);
 480         IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2);
 481         IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1);
 482         IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2);
 483         IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1);
 484         IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2);
 485         IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3);
 486         IWL_ERR(mvm, "0x%08X | umac major\n", table.umac_major);
 487         IWL_ERR(mvm, "0x%08X | umac minor\n", table.umac_minor);
 488         IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer);
 489         IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer);
 490         IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header);
 491         IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref);
 492 }
 493
 494 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
 495 {
 496         struct iwl_trans *trans = mvm->trans;
 497         struct iwl_error_event_table table;
 498         u32 base;
 499
 500         base = mvm->error_event_table;
 501         if (mvm->cur_ucode == IWL_UCODE_INIT) {
 502                 if (!base)
 503                         base = mvm->fw->init_errlog_ptr;
 504         } else {
 505                 if (!base)
 506                         base = mvm->fw->inst_errlog_ptr;
 507         }
 508
 509         if (base < 0x800000) {
 510                 IWL_ERR(mvm,
 511                         "Not valid error log pointer 0x%08X for %s uCode\n",
 512                         base,
 513                         (mvm->cur_ucode == IWL_UCODE_INIT)
 514                                         ? "Init" : "RT");
 515                 return;
 516         }
 517
 518         iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
 519
 520         if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
 521                 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
 522                 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
 523                         mvm->status, table.valid);
 524         }
 525
 526         /* Do not change this output - scripts rely on it */
 527
 528         IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version);
 529
 530         trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
 531                                       table.data1, table.data2, table.data3,
 532                                       table.blink2, table.ilink1,
 533                                       table.ilink2, table.bcon_time, table.gp1,
 534                                       table.gp2, table.fw_rev_type, table.major,
 535                                       table.minor, table.hw_ver, table.brd_ver);
 536         IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id,
 537                 desc_lookup(table.error_id));
 538         IWL_ERR(mvm, "0x%08X | trm_hw_status0\n", table.trm_hw_status0);
 539         IWL_ERR(mvm, "0x%08X | trm_hw_status1\n", table.trm_hw_status1);
 540         IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2);
 541         IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1);
 542         IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2);
 543         IWL_ERR(mvm, "0x%08X | data1\n", table.data1);
 544         IWL_ERR(mvm, "0x%08X | data2\n", table.data2);
 545         IWL_ERR(mvm, "0x%08X | data3\n", table.data3);
 546         IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time);
 547         IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low);
 548         IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi);
 549         IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1);
 550         IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2);
 551         IWL_ERR(mvm, "0x%08X | uCode revision type\n", table.fw_rev_type);
 552         IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major);
 553         IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor);
 554         IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver);
 555         IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver);
 556         IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd);
 557         IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0);
 558         IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1);
 559         IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2);
 560         IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3);
 561         IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4);
 562         IWL_ERR(mvm, "0x%08X | last cmd Id\n", table.last_cmd_id);
 563         IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event);
 564         IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control);
 565         IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration);
 566         IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
 567         IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
 568         IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
 569         IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp);
 570         IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler);
 571
 572         if (mvm->support_umac_log)
 573                 iwl_mvm_dump_umac_error_log(mvm);
 574 }
 575
 576 int iwl_mvm_find_free_queue(struct iwl_mvm *mvm, u8 minq, u8 maxq)
 577 {
 578         int i;
 579
 580         lockdep_assert_held(&mvm->queue_info_lock);
 581
 582         for (i = minq; i <= maxq; i++)
 583                 if (mvm->queue_info[i].hw_queue_refcount == 0 &&
 584                     !mvm->queue_info[i].setup_reserved)
 585                         return i;
 586
 587         return -ENOSPC;
 588 }
 589
 590 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
 591                         u16 ssn, const struct iwl_trans_txq_scd_cfg *cfg,
 592                         unsigned int wdg_timeout)
 593 {
 594         bool enable_queue = true;
 595
 596         spin_lock_bh(&mvm->queue_info_lock);
 597
 598         /* Make sure this TID isn't already enabled */
 599         if (mvm->queue_info[queue].tid_bitmap & BIT(cfg->tid)) {
 600                 spin_unlock_bh(&mvm->queue_info_lock);
 601                 IWL_ERR(mvm, "Trying to enable TXQ with existing TID %d\n",
 602                         cfg->tid);
 603                 return;
 604         }
 605
 606         /* Update mappings and refcounts */
 607         mvm->queue_info[queue].hw_queue_to_mac80211 |= BIT(mac80211_queue);
 608         mvm->queue_info[queue].hw_queue_refcount++;
 609         if (mvm->queue_info[queue].hw_queue_refcount > 1)
 610                 enable_queue = false;
 611         else
 612                 mvm->queue_info[queue].ra_sta_id = cfg->sta_id;
 613         mvm->queue_info[queue].tid_bitmap |= BIT(cfg->tid);
 614
 615         IWL_DEBUG_TX_QUEUES(mvm,
 616                             "Enabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n",
 617                             queue, mvm->queue_info[queue].hw_queue_refcount,
 618                             mvm->queue_info[queue].hw_queue_to_mac80211);
 619
 620         spin_unlock_bh(&mvm->queue_info_lock);
 621
 622         /* Send the enabling command if we need to */
 623         if (enable_queue) {
 624                 struct iwl_scd_txq_cfg_cmd cmd = {
 625                         .scd_queue = queue,
 626                         .enable = 1,
 627                         .window = cfg->frame_limit,
 628                         .sta_id = cfg->sta_id,
 629                         .ssn = cpu_to_le16(ssn),
 630                         .tx_fifo = cfg->fifo,
 631                         .aggregate = cfg->aggregate,
 632                         .tid = cfg->tid,
 633                 };
 634
 635                 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL,
 636                                          wdg_timeout);
 637                 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd),
 638                                           &cmd),
 639                      "Failed to configure queue %d on FIFO %d\n", queue,
 640                      cfg->fifo);
 641         }
 642 }
 643
 644 void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, int mac80211_queue,
 645                          u8 tid, u8 flags)
 646 {
 647         struct iwl_scd_txq_cfg_cmd cmd = {
 648                 .scd_queue = queue,
 649                 .enable = 0,
 650         };
 651         bool remove_mac_queue = true;
 652         int ret;
 653
 654         spin_lock_bh(&mvm->queue_info_lock);
 655
 656         if (WARN_ON(mvm->queue_info[queue].hw_queue_refcount == 0)) {
 657                 spin_unlock_bh(&mvm->queue_info_lock);
 658                 return;
 659         }
 660
 661         mvm->queue_info[queue].tid_bitmap &= ~BIT(tid);
 662
 663         /*
 664          * If there is another TID with the same AC - don't remove the MAC queue
 665          * from the mapping
 666          */
 667         if (tid < IWL_MAX_TID_COUNT) {
 668                 unsigned long tid_bitmap =
 669                         mvm->queue_info[queue].tid_bitmap;
 670                 int ac = tid_to_mac80211_ac[tid];
 671                 int i;
 672
 673                 for_each_set_bit(i, &tid_bitmap, IWL_MAX_TID_COUNT) {
 674                         if (tid_to_mac80211_ac[i] == ac)
 675                                 remove_mac_queue = false;
 676                 }
 677         }
 678
 679         if (remove_mac_queue)
 680                 mvm->queue_info[queue].hw_queue_to_mac80211 &=
 681                         ~BIT(mac80211_queue);
 682         mvm->queue_info[queue].hw_queue_refcount--;
 683
 684         cmd.enable = mvm->queue_info[queue].hw_queue_refcount ? 1 : 0;
 685
 686         IWL_DEBUG_TX_QUEUES(mvm,
 687                             "Disabling TXQ #%d refcount=%d (mac80211 map:0x%x)\n",
 688                             queue,
 689                             mvm->queue_info[queue].hw_queue_refcount,
 690                             mvm->queue_info[queue].hw_queue_to_mac80211);
 691
 692         /* If the queue is still enabled - nothing left to do in this func */
 693         if (cmd.enable) {
 694                 spin_unlock_bh(&mvm->queue_info_lock);
 695                 return;
 696         }
 697
 698         cmd.sta_id = mvm->queue_info[queue].ra_sta_id;
 699
 700         /* Make sure queue info is correct even though we overwrite it */
 701         WARN(mvm->queue_info[queue].hw_queue_refcount ||
 702              mvm->queue_info[queue].tid_bitmap ||
 703              mvm->queue_info[queue].hw_queue_to_mac80211,
 704              "TXQ #%d info out-of-sync - refcount=%d, mac map=0x%x, tid=0x%x\n",
 705              queue, mvm->queue_info[queue].hw_queue_refcount,
 706              mvm->queue_info[queue].hw_queue_to_mac80211,
 707              mvm->queue_info[queue].tid_bitmap);
 708
 709         /* If we are here - the queue is freed and we can zero out these vals */
 710         mvm->queue_info[queue].hw_queue_refcount = 0;
 711         mvm->queue_info[queue].tid_bitmap = 0;
 712         mvm->queue_info[queue].hw_queue_to_mac80211 = 0;
 713
 714         spin_unlock_bh(&mvm->queue_info_lock);
 715
 716         iwl_trans_txq_disable(mvm->trans, queue, false);
 717         ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags,
 718                                    sizeof(cmd), &cmd);
 719         if (ret)
 720                 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n",
 721                         queue, ret);
 722 }
 723
 724 /**
 725  * iwl_mvm_send_lq_cmd() - Send link quality command
 726  * @init: This command is sent as part of station initialization right
 727  *        after station has been added.
 728  *
 729  * The link quality command is sent as the last step of station creation.
 730  * This is the special case in which init is set and we call a callback in
 731  * this case to clear the state indicating that station creation is in
 732  * progress.
 733  */
 734 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init)
 735 {
 736         struct iwl_host_cmd cmd = {
 737                 .id = LQ_CMD,
 738                 .len = { sizeof(struct iwl_lq_cmd), },
 739                 .flags = init ? 0 : CMD_ASYNC,
 740                 .data = { lq, },
 741         };
 742
 743         if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT))
 744                 return -EINVAL;
 745
 746         return iwl_mvm_send_cmd(mvm, &cmd);
 747 }
 748
 749 /**
 750  * iwl_mvm_update_smps - Get a request to change the SMPS mode
 751  * @req_type: The part of the driver who call for a change.
 752  * @smps_requests: The request to change the SMPS mode.
 753  *
 754  * Get a requst to change the SMPS mode,
 755  * and change it according to all other requests in the driver.
 756  */
 757 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 758                          enum iwl_mvm_smps_type_request req_type,
 759                          enum ieee80211_smps_mode smps_request)
 760 {
 761         struct iwl_mvm_vif *mvmvif;
 762         enum ieee80211_smps_mode smps_mode;
 763         int i;
 764
 765         lockdep_assert_held(&mvm->mutex);
 766
 767         /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */
 768         if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
 769                 return;
 770
 771         if (vif->type == NL80211_IFTYPE_AP)
 772                 smps_mode = IEEE80211_SMPS_OFF;
 773         else
 774                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 775
 776         mvmvif = iwl_mvm_vif_from_mac80211(vif);
 777         mvmvif->smps_requests[req_type] = smps_request;
 778         for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
 779                 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) {
 780                         smps_mode = IEEE80211_SMPS_STATIC;
 781                         break;
 782                 }
 783                 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
 784                         smps_mode = IEEE80211_SMPS_DYNAMIC;
 785         }
 786
 787         ieee80211_request_smps(vif, smps_mode);
 788 }
 789
 790 int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear)
 791 {
 792         struct iwl_statistics_cmd scmd = {
 793                 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0,
 794         };
 795         struct iwl_host_cmd cmd = {
 796                 .id = STATISTICS_CMD,
 797                 .len[0] = sizeof(scmd),
 798                 .data[0] = &scmd,
 799                 .flags = CMD_WANT_SKB,
 800         };
 801         int ret;
 802
 803         ret = iwl_mvm_send_cmd(mvm, &cmd);
 804         if (ret)
 805                 return ret;
 806
 807         iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt);
 808         iwl_free_resp(&cmd);
 809
 810         if (clear)
 811                 iwl_mvm_accu_radio_stats(mvm);
 812
 813         return 0;
 814 }
 815
 816 void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm)
 817 {
 818         mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time;
 819         mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time;
 820         mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf;
 821         mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan;
 822 }
 823
 824 static void iwl_mvm_diversity_iter(void *_data, u8 *mac,
 825                                    struct ieee80211_vif *vif)
 826 {
 827         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 828         bool *result = _data;
 829         int i;
 830
 831         for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
 832                 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC ||
 833                     mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
 834                         *result = false;
 835         }
 836 }
 837
 838 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
 839 {
 840         bool result = true;
 841
 842         lockdep_assert_held(&mvm->mutex);
 843
 844         if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
 845                 return false;
 846
 847         if (mvm->cfg->rx_with_siso_diversity)
 848                 return false;
 849
 850         ieee80211_iterate_active_interfaces_atomic(
 851                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 852                         iwl_mvm_diversity_iter, &result);
 853
 854         return result;
 855 }
 856
 857 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 858                                bool prev)
 859 {
 860         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 861         int res;
 862
 863         lockdep_assert_held(&mvm->mutex);
 864
 865         if (iwl_mvm_vif_low_latency(mvmvif) == prev)
 866                 return 0;
 867
 868         res = iwl_mvm_update_quotas(mvm, false, NULL);
 869         if (res)
 870                 return res;
 871
 872         iwl_mvm_bt_coex_vif_change(mvm);
 873
 874         return iwl_mvm_power_update_mac(mvm);
 875 }
 876
 877 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
 878 {
 879         bool *result = _data;
 880
 881         if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif)))
 882                 *result = true;
 883 }
 884
 885 bool iwl_mvm_low_latency(struct iwl_mvm *mvm)
 886 {
 887         bool result = false;
 888
 889         ieee80211_iterate_active_interfaces_atomic(
 890                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 891                         iwl_mvm_ll_iter, &result);
 892
 893         return result;
 894 }
 895
 896 struct iwl_bss_iter_data {
 897         struct ieee80211_vif *vif;
 898         bool error;
 899 };
 900
 901 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac,
 902                                        struct ieee80211_vif *vif)
 903 {
 904         struct iwl_bss_iter_data *data = _data;
 905
 906         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 907                 return;
 908
 909         if (data->vif) {
 910                 data->error = true;
 911                 return;
 912         }
 913
 914         data->vif = vif;
 915 }
 916
 917 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm)
 918 {
 919         struct iwl_bss_iter_data bss_iter_data = {};
 920
 921         ieee80211_iterate_active_interfaces_atomic(
 922                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 923                 iwl_mvm_bss_iface_iterator, &bss_iter_data);
 924
 925         if (bss_iter_data.error) {
 926                 IWL_ERR(mvm, "More than one managed interface active!\n");
 927                 return ERR_PTR(-EINVAL);
 928         }
 929
 930         return bss_iter_data.vif;
 931 }
 932
 933 unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm,
 934                                     struct ieee80211_vif *vif,
 935                                     bool tdls, bool cmd_q)
 936 {
 937         struct iwl_fw_dbg_trigger_tlv *trigger;
 938         struct iwl_fw_dbg_trigger_txq_timer *txq_timer;
 939         unsigned int default_timeout =
 940                 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout;
 941
 942         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS))
 943                 return iwlmvm_mod_params.tfd_q_hang_detect ?
 944                         default_timeout : IWL_WATCHDOG_DISABLED;
 945
 946         trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS);
 947         txq_timer = (void *)trigger->data;
 948
 949         if (tdls)
 950                 return le32_to_cpu(txq_timer->tdls);
 951
 952         if (cmd_q)
 953                 return le32_to_cpu(txq_timer->command_queue);
 954
 955         if (WARN_ON(!vif))
 956                 return default_timeout;
 957
 958         switch (ieee80211_vif_type_p2p(vif)) {
 959         case NL80211_IFTYPE_ADHOC:
 960                 return le32_to_cpu(txq_timer->ibss);
 961         case NL80211_IFTYPE_STATION:
 962                 return le32_to_cpu(txq_timer->bss);
 963         case NL80211_IFTYPE_AP:
 964                 return le32_to_cpu(txq_timer->softap);
 965         case NL80211_IFTYPE_P2P_CLIENT:
 966                 return le32_to_cpu(txq_timer->p2p_client);
 967         case NL80211_IFTYPE_P2P_GO:
 968                 return le32_to_cpu(txq_timer->p2p_go);
 969         case NL80211_IFTYPE_P2P_DEVICE:
 970                 return le32_to_cpu(txq_timer->p2p_device);
 971         default:
 972                 WARN_ON(1);
 973                 return mvm->cfg->base_params->wd_timeout;
 974         }
 975 }
 976
 977 void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 978                              const char *errmsg)
 979 {
 980         struct iwl_fw_dbg_trigger_tlv *trig;
 981         struct iwl_fw_dbg_trigger_mlme *trig_mlme;
 982
 983         if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
 984                 goto out;
 985
 986         trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
 987         trig_mlme = (void *)trig->data;
 988         if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
 989                 goto out;
 990
 991         if (trig_mlme->stop_connection_loss &&
 992             --trig_mlme->stop_connection_loss)
 993                 goto out;
 994
 995         iwl_mvm_fw_dbg_collect_trig(mvm, trig, "%s", errmsg);
 996
 997 out:
 998         ieee80211_connection_loss(vif);
 999 }
1000
1001 int iwl_mvm_send_lqm_cmd(struct ieee80211_vif *vif,
1002                          enum iwl_lqm_cmd_operatrions operation,
1003                          u32 duration, u32 timeout)
1004 {
1005         struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif);
1006         struct iwl_link_qual_msrmnt_cmd cmd = {
1007                 .cmd_operation = cpu_to_le32(operation),
1008                 .mac_id = cpu_to_le32(mvm_vif->id),
1009                 .measurement_time = cpu_to_le32(duration),
1010                 .timeout = cpu_to_le32(timeout),
1011         };
1012         u32 cmdid =
1013                 iwl_cmd_id(LINK_QUALITY_MEASUREMENT_CMD, MAC_CONF_GROUP, 0);
1014         int ret;
1015
1016         if (!fw_has_capa(&mvm_vif->mvm->fw->ucode_capa,
1017                          IWL_UCODE_TLV_CAPA_LQM_SUPPORT))
1018                 return -EOPNOTSUPP;
1019
1020         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
1021                 return -EINVAL;
1022
1023         switch (operation) {
1024         case LQM_CMD_OPERATION_START_MEASUREMENT:
1025                 if (iwl_mvm_lqm_active(mvm_vif->mvm))
1026                         return -EBUSY;
1027                 if (!vif->bss_conf.assoc)
1028                         return -EINVAL;
1029                 mvm_vif->lqm_active = true;
1030                 break;
1031         case LQM_CMD_OPERATION_STOP_MEASUREMENT:
1032                 if (!iwl_mvm_lqm_active(mvm_vif->mvm))
1033                         return -EINVAL;
1034                 break;
1035         default:
1036                 return -EINVAL;
1037         }
1038
1039         ret = iwl_mvm_send_cmd_pdu(mvm_vif->mvm, cmdid, 0, sizeof(cmd),
1040                                    &cmd);
1041
1042         /* command failed - roll back lqm_active state */
1043         if (ret) {
1044                 mvm_vif->lqm_active =
1045                         operation == LQM_CMD_OPERATION_STOP_MEASUREMENT;
1046         }
1047
1048         return ret;
1049 }
1050
1051 static void iwl_mvm_lqm_active_iterator(void *_data, u8 *mac,
1052                                         struct ieee80211_vif *vif)
1053 {
1054         struct iwl_mvm_vif *mvm_vif = iwl_mvm_vif_from_mac80211(vif);
1055         bool *lqm_active = _data;
1056
1057         *lqm_active = *lqm_active || mvm_vif->lqm_active;
1058 }
1059
1060 bool iwl_mvm_lqm_active(struct iwl_mvm *mvm)
1061 {
1062         bool ret = false;
1063
1064         lockdep_assert_held(&mvm->mutex);
1065         ieee80211_iterate_active_interfaces_atomic(
1066                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1067                 iwl_mvm_lqm_active_iterator, &ret);
1068
1069         return ret;
1070 }