drivers/net/wireless/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  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
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  29  *  Intel Linux Wireless <ilw@linux.intel.com>
  30  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  31  *
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  33  *
  34  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  35  * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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  39  * modification, are permitted provided that the following conditions
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  45  *    notice, this list of conditions and the following disclaimer in
  46  *    the documentation and/or other materials provided with the
  47  *    distribution.
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  49  *    contributors may be used to endorse or promote products derived
  50  *    from this software without specific prior written permission.
  51  *
  52  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  53  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  54  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  55  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  56  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  57  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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  59  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  60  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  61  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  62  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  63  *
  64  *****************************************************************************/
  65 #include <net/mac80211.h>
  66
  67 #include "iwl-debug.h"
  68 #include "iwl-io.h"
  69 #include "iwl-prph.h"
  70
  71 #include "mvm.h"
  72 #include "fw-api-rs.h"
  73
  74 /*
  75  * Will return 0 even if the cmd failed when RFKILL is asserted unless
  76  * CMD_WANT_SKB is set in cmd->flags.
  77  */
  78 int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd)
  79 {
  80         int ret;
  81
  82 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
  83         if (WARN_ON(mvm->d3_test_active))
  84                 return -EIO;
  85 #endif
  86
  87         /*
  88          * Synchronous commands from this op-mode must hold
  89          * the mutex, this ensures we don't try to send two
  90          * (or more) synchronous commands at a time.
  91          */
  92         if (!(cmd->flags & CMD_ASYNC))
  93                 lockdep_assert_held(&mvm->mutex);
  94
  95         ret = iwl_trans_send_cmd(mvm->trans, cmd);
  96
  97         /*
  98          * If the caller wants the SKB, then don't hide any problems, the
  99          * caller might access the response buffer which will be NULL if
 100          * the command failed.
 101          */
 102         if (cmd->flags & CMD_WANT_SKB)
 103                 return ret;
 104
 105         /* Silently ignore failures if RFKILL is asserted */
 106         if (!ret || ret == -ERFKILL)
 107                 return 0;
 108         return ret;
 109 }
 110
 111 int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id,
 112                          u32 flags, u16 len, const void *data)
 113 {
 114         struct iwl_host_cmd cmd = {
 115                 .id = id,
 116                 .len = { len, },
 117                 .data = { data, },
 118                 .flags = flags,
 119         };
 120
 121         return iwl_mvm_send_cmd(mvm, &cmd);
 122 }
 123
 124 /*
 125  * We assume that the caller set the status to the sucess value
 126  */
 127 int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd,
 128                             u32 *status)
 129 {
 130         struct iwl_rx_packet *pkt;
 131         struct iwl_cmd_response *resp;
 132         int ret, resp_len;
 133
 134         lockdep_assert_held(&mvm->mutex);
 135
 136 #if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP)
 137         if (WARN_ON(mvm->d3_test_active))
 138                 return -EIO;
 139 #endif
 140
 141         /*
 142          * Only synchronous commands can wait for status,
 143          * we use WANT_SKB so the caller can't.
 144          */
 145         if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB),
 146                       "cmd flags %x", cmd->flags))
 147                 return -EINVAL;
 148
 149         cmd->flags |= CMD_WANT_SKB;
 150
 151         ret = iwl_trans_send_cmd(mvm->trans, cmd);
 152         if (ret == -ERFKILL) {
 153                 /*
 154                  * The command failed because of RFKILL, don't update
 155                  * the status, leave it as success and return 0.
 156                  */
 157                 return 0;
 158         } else if (ret) {
 159                 return ret;
 160         }
 161
 162         pkt = cmd->resp_pkt;
 163         /* Can happen if RFKILL is asserted */
 164         if (!pkt) {
 165                 ret = 0;
 166                 goto out_free_resp;
 167         }
 168
 169         if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) {
 170                 ret = -EIO;
 171                 goto out_free_resp;
 172         }
 173
 174         resp_len = iwl_rx_packet_payload_len(pkt);
 175         if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
 176                 ret = -EIO;
 177                 goto out_free_resp;
 178         }
 179
 180         resp = (void *)pkt->data;
 181         *status = le32_to_cpu(resp->status);
 182  out_free_resp:
 183         iwl_free_resp(cmd);
 184         return ret;
 185 }
 186
 187 /*
 188  * We assume that the caller set the status to the sucess value
 189  */
 190 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id, u16 len,
 191                                 const void *data, u32 *status)
 192 {
 193         struct iwl_host_cmd cmd = {
 194                 .id = id,
 195                 .len = { len, },
 196                 .data = { data, },
 197         };
 198
 199         return iwl_mvm_send_cmd_status(mvm, &cmd, status);
 200 }
 201
 202 #define IWL_DECLARE_RATE_INFO(r) \
 203         [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP
 204
 205 /*
 206  * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP
 207  */
 208 static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = {
 209         IWL_DECLARE_RATE_INFO(1),
 210         IWL_DECLARE_RATE_INFO(2),
 211         IWL_DECLARE_RATE_INFO(5),
 212         IWL_DECLARE_RATE_INFO(11),
 213         IWL_DECLARE_RATE_INFO(6),
 214         IWL_DECLARE_RATE_INFO(9),
 215         IWL_DECLARE_RATE_INFO(12),
 216         IWL_DECLARE_RATE_INFO(18),
 217         IWL_DECLARE_RATE_INFO(24),
 218         IWL_DECLARE_RATE_INFO(36),
 219         IWL_DECLARE_RATE_INFO(48),
 220         IWL_DECLARE_RATE_INFO(54),
 221 };
 222
 223 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
 224                                         enum ieee80211_band band)
 225 {
 226         int rate = rate_n_flags & RATE_LEGACY_RATE_MSK;
 227         int idx;
 228         int band_offset = 0;
 229
 230         /* Legacy rate format, search for match in table */
 231         if (band == IEEE80211_BAND_5GHZ)
 232                 band_offset = IWL_FIRST_OFDM_RATE;
 233         for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++)
 234                 if (fw_rate_idx_to_plcp[idx] == rate)
 235                         return idx - band_offset;
 236
 237         return -1;
 238 }
 239
 240 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx)
 241 {
 242         /* Get PLCP rate for tx_cmd->rate_n_flags */
 243         return fw_rate_idx_to_plcp[rate_idx];
 244 }
 245
 246 int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 247                           struct iwl_device_cmd *cmd)
 248 {
 249         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 250         struct iwl_error_resp *err_resp = (void *)pkt->data;
 251
 252         IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n",
 253                 le32_to_cpu(err_resp->error_type), err_resp->cmd_id);
 254         IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n",
 255                 le16_to_cpu(err_resp->bad_cmd_seq_num),
 256                 le32_to_cpu(err_resp->error_service));
 257         IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n",
 258                 le64_to_cpu(err_resp->timestamp));
 259         return 0;
 260 }
 261
 262 /*
 263  * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h.
 264  * The parameter should also be a combination of ANT_[ABC].
 265  */
 266 u8 first_antenna(u8 mask)
 267 {
 268         BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */
 269         if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */
 270                 return BIT(0);
 271         return BIT(ffs(mask) - 1);
 272 }
 273
 274 /*
 275  * Toggles between TX antennas to send the probe request on.
 276  * Receives the bitmask of valid TX antennas and the *index* used
 277  * for the last TX, and returns the next valid *index* to use.
 278  * In order to set it in the tx_cmd, must do BIT(idx).
 279  */
 280 u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx)
 281 {
 282         u8 ind = last_idx;
 283         int i;
 284
 285         for (i = 0; i < RATE_MCS_ANT_NUM; i++) {
 286                 ind = (ind + 1) % RATE_MCS_ANT_NUM;
 287                 if (valid & BIT(ind))
 288                         return ind;
 289         }
 290
 291         WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid);
 292         return last_idx;
 293 }
 294
 295 static const struct {
 296         const char *name;
 297         u8 num;
 298 } advanced_lookup[] = {
 299         { "NMI_INTERRUPT_WDG", 0x34 },
 300         { "SYSASSERT", 0x35 },
 301         { "UCODE_VERSION_MISMATCH", 0x37 },
 302         { "BAD_COMMAND", 0x38 },
 303         { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
 304         { "FATAL_ERROR", 0x3D },
 305         { "NMI_TRM_HW_ERR", 0x46 },
 306         { "NMI_INTERRUPT_TRM", 0x4C },
 307         { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
 308         { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
 309         { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
 310         { "NMI_INTERRUPT_HOST", 0x66 },
 311         { "NMI_INTERRUPT_ACTION_PT", 0x7C },
 312         { "NMI_INTERRUPT_UNKNOWN", 0x84 },
 313         { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
 314         { "ADVANCED_SYSASSERT", 0 },
 315 };
 316
 317 static const char *desc_lookup(u32 num)
 318 {
 319         int i;
 320
 321         for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++)
 322                 if (advanced_lookup[i].num == num)
 323                         return advanced_lookup[i].name;
 324
 325         /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */
 326         return advanced_lookup[i].name;
 327 }
 328
 329 /*
 330  * Note: This structure is read from the device with IO accesses,
 331  * and the reading already does the endian conversion. As it is
 332  * read with u32-sized accesses, any members with a different size
 333  * need to be ordered correctly though!
 334  */
 335 struct iwl_error_event_table {
 336         u32 valid;              /* (nonzero) valid, (0) log is empty */
 337         u32 error_id;           /* type of error */
 338         u32 pc;                 /* program counter */
 339         u32 blink1;             /* branch link */
 340         u32 blink2;             /* branch link */
 341         u32 ilink1;             /* interrupt link */
 342         u32 ilink2;             /* interrupt link */
 343         u32 data1;              /* error-specific data */
 344         u32 data2;              /* error-specific data */
 345         u32 data3;              /* error-specific data */
 346         u32 bcon_time;          /* beacon timer */
 347         u32 tsf_low;            /* network timestamp function timer */
 348         u32 tsf_hi;             /* network timestamp function timer */
 349         u32 gp1;                /* GP1 timer register */
 350         u32 gp2;                /* GP2 timer register */
 351         u32 gp3;                /* GP3 timer register */
 352         u32 ucode_ver;          /* uCode version */
 353         u32 hw_ver;             /* HW Silicon version */
 354         u32 brd_ver;            /* HW board version */
 355         u32 log_pc;             /* log program counter */
 356         u32 frame_ptr;          /* frame pointer */
 357         u32 stack_ptr;          /* stack pointer */
 358         u32 hcmd;               /* last host command header */
 359         u32 isr0;               /* isr status register LMPM_NIC_ISR0:
 360                                  * rxtx_flag */
 361         u32 isr1;               /* isr status register LMPM_NIC_ISR1:
 362                                  * host_flag */
 363         u32 isr2;               /* isr status register LMPM_NIC_ISR2:
 364                                  * enc_flag */
 365         u32 isr3;               /* isr status register LMPM_NIC_ISR3:
 366                                  * time_flag */
 367         u32 isr4;               /* isr status register LMPM_NIC_ISR4:
 368                                  * wico interrupt */
 369         u32 isr_pref;           /* isr status register LMPM_NIC_PREF_STAT */
 370         u32 wait_event;         /* wait event() caller address */
 371         u32 l2p_control;        /* L2pControlField */
 372         u32 l2p_duration;       /* L2pDurationField */
 373         u32 l2p_mhvalid;        /* L2pMhValidBits */
 374         u32 l2p_addr_match;     /* L2pAddrMatchStat */
 375         u32 lmpm_pmg_sel;       /* indicate which clocks are turned on
 376                                  * (LMPM_PMG_SEL) */
 377         u32 u_timestamp;        /* indicate when the date and time of the
 378                                  * compilation */
 379         u32 flow_handler;       /* FH read/write pointers, RX credit */
 380 } __packed;
 381
 382 /*
 383  * UMAC error struct - relevant starting from family 8000 chip.
 384  * Note: This structure is read from the device with IO accesses,
 385  * and the reading already does the endian conversion. As it is
 386  * read with u32-sized accesses, any members with a different size
 387  * need to be ordered correctly though!
 388  */
 389 struct iwl_umac_error_event_table {
 390         u32 valid;              /* (nonzero) valid, (0) log is empty */
 391         u32 error_id;           /* type of error */
 392         u32 blink1;             /* branch link */
 393         u32 blink2;             /* branch link */
 394         u32 ilink1;             /* interrupt link */
 395         u32 ilink2;             /* interrupt link */
 396         u32 data1;              /* error-specific data */
 397         u32 data2;              /* error-specific data */
 398         u32 data3;              /* error-specific data */
 399         u32 umac_fw_ver;        /* UMAC version */
 400         u32 umac_fw_api_ver;    /* UMAC FW API ver */
 401         u32 frame_pointer;      /* core register 27*/
 402         u32 stack_pointer;      /* core register 28 */
 403         u32 cmd_header; /* latest host cmd sent to UMAC */
 404         u32 nic_isr_pref;       /* ISR status register */
 405 } __packed;
 406
 407 #define ERROR_START_OFFSET  (1 * sizeof(u32))
 408 #define ERROR_ELEM_SIZE     (7 * sizeof(u32))
 409
 410 static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm)
 411 {
 412         struct iwl_trans *trans = mvm->trans;
 413         struct iwl_umac_error_event_table table;
 414         u32 base;
 415
 416         base = mvm->umac_error_event_table;
 417
 418         if (base < 0x800000) {
 419                 IWL_ERR(mvm,
 420                         "Not valid error log pointer 0x%08X for %s uCode\n",
 421                         base,
 422                         (mvm->cur_ucode == IWL_UCODE_INIT)
 423                                         ? "Init" : "RT");
 424                 return;
 425         }
 426
 427         iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
 428
 429         if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
 430                 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
 431                 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
 432                         mvm->status, table.valid);
 433         }
 434
 435         IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id,
 436                 desc_lookup(table.error_id));
 437         IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1);
 438         IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2);
 439         IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1);
 440         IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2);
 441         IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1);
 442         IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2);
 443         IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3);
 444         IWL_ERR(mvm, "0x%08X | umac version\n", table.umac_fw_ver);
 445         IWL_ERR(mvm, "0x%08X | umac api version\n", table.umac_fw_api_ver);
 446         IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer);
 447         IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer);
 448         IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header);
 449         IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref);
 450 }
 451
 452 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm)
 453 {
 454         struct iwl_trans *trans = mvm->trans;
 455         struct iwl_error_event_table table;
 456         u32 base;
 457
 458         base = mvm->error_event_table;
 459         if (mvm->cur_ucode == IWL_UCODE_INIT) {
 460                 if (!base)
 461                         base = mvm->fw->init_errlog_ptr;
 462         } else {
 463                 if (!base)
 464                         base = mvm->fw->inst_errlog_ptr;
 465         }
 466
 467         if (base < 0x800000) {
 468                 IWL_ERR(mvm,
 469                         "Not valid error log pointer 0x%08X for %s uCode\n",
 470                         base,
 471                         (mvm->cur_ucode == IWL_UCODE_INIT)
 472                                         ? "Init" : "RT");
 473                 return;
 474         }
 475
 476         iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table));
 477
 478         if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) {
 479                 IWL_ERR(trans, "Start IWL Error Log Dump:\n");
 480                 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n",
 481                         mvm->status, table.valid);
 482         }
 483
 484         /* Do not change this output - scripts rely on it */
 485
 486         IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version);
 487
 488         trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low,
 489                                       table.data1, table.data2, table.data3,
 490                                       table.blink1, table.blink2, table.ilink1,
 491                                       table.ilink2, table.bcon_time, table.gp1,
 492                                       table.gp2, table.gp3, table.ucode_ver,
 493                                       table.hw_ver, table.brd_ver);
 494         IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id,
 495                 desc_lookup(table.error_id));
 496         IWL_ERR(mvm, "0x%08X | uPc\n", table.pc);
 497         IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1);
 498         IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2);
 499         IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1);
 500         IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2);
 501         IWL_ERR(mvm, "0x%08X | data1\n", table.data1);
 502         IWL_ERR(mvm, "0x%08X | data2\n", table.data2);
 503         IWL_ERR(mvm, "0x%08X | data3\n", table.data3);
 504         IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time);
 505         IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low);
 506         IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi);
 507         IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1);
 508         IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2);
 509         IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3);
 510         IWL_ERR(mvm, "0x%08X | uCode version\n", table.ucode_ver);
 511         IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver);
 512         IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver);
 513         IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd);
 514         IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0);
 515         IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1);
 516         IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2);
 517         IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3);
 518         IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4);
 519         IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref);
 520         IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event);
 521         IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control);
 522         IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration);
 523         IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid);
 524         IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match);
 525         IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel);
 526         IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp);
 527         IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler);
 528
 529         if (mvm->support_umac_log)
 530                 iwl_mvm_dump_umac_error_log(mvm);
 531 }
 532
 533 void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn,
 534                         const struct iwl_trans_txq_scd_cfg *cfg)
 535 {
 536         struct iwl_scd_txq_cfg_cmd cmd = {
 537                 .scd_queue = queue,
 538                 .enable = 1,
 539                 .window = cfg->frame_limit,
 540                 .sta_id = cfg->sta_id,
 541                 .ssn = cpu_to_le16(ssn),
 542                 .tx_fifo = cfg->fifo,
 543                 .aggregate = cfg->aggregate,
 544                 .tid = cfg->tid,
 545         };
 546
 547         if (!iwl_mvm_is_scd_cfg_supported(mvm)) {
 548                 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, cfg);
 549                 return;
 550         }
 551
 552         iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL);
 553         WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd),
 554              "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo);
 555 }
 556
 557 void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, u8 flags)
 558 {
 559         struct iwl_scd_txq_cfg_cmd cmd = {
 560                 .scd_queue = queue,
 561                 .enable = 0,
 562         };
 563         int ret;
 564
 565         if (!iwl_mvm_is_scd_cfg_supported(mvm)) {
 566                 iwl_trans_txq_disable(mvm->trans, queue, true);
 567                 return;
 568         }
 569
 570         iwl_trans_txq_disable(mvm->trans, queue, false);
 571         ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags,
 572                                    sizeof(cmd), &cmd);
 573         if (ret)
 574                 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n",
 575                         queue, ret);
 576 }
 577
 578 /**
 579  * iwl_mvm_send_lq_cmd() - Send link quality command
 580  * @init: This command is sent as part of station initialization right
 581  *        after station has been added.
 582  *
 583  * The link quality command is sent as the last step of station creation.
 584  * This is the special case in which init is set and we call a callback in
 585  * this case to clear the state indicating that station creation is in
 586  * progress.
 587  */
 588 int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init)
 589 {
 590         struct iwl_host_cmd cmd = {
 591                 .id = LQ_CMD,
 592                 .len = { sizeof(struct iwl_lq_cmd), },
 593                 .flags = init ? 0 : CMD_ASYNC,
 594                 .data = { lq, },
 595         };
 596
 597         if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT))
 598                 return -EINVAL;
 599
 600         return iwl_mvm_send_cmd(mvm, &cmd);
 601 }
 602
 603 /**
 604  * iwl_mvm_update_smps - Get a requst to change the SMPS mode
 605  * @req_type: The part of the driver who call for a change.
 606  * @smps_requests: The request to change the SMPS mode.
 607  *
 608  * Get a requst to change the SMPS mode,
 609  * and change it according to all other requests in the driver.
 610  */
 611 void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 612                          enum iwl_mvm_smps_type_request req_type,
 613                          enum ieee80211_smps_mode smps_request)
 614 {
 615         struct iwl_mvm_vif *mvmvif;
 616         enum ieee80211_smps_mode smps_mode;
 617         int i;
 618
 619         lockdep_assert_held(&mvm->mutex);
 620
 621         /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */
 622         if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
 623                 return;
 624
 625         if (vif->type == NL80211_IFTYPE_AP)
 626                 smps_mode = IEEE80211_SMPS_OFF;
 627         else
 628                 smps_mode = IEEE80211_SMPS_AUTOMATIC;
 629
 630         mvmvif = iwl_mvm_vif_from_mac80211(vif);
 631         mvmvif->smps_requests[req_type] = smps_request;
 632         for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
 633                 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) {
 634                         smps_mode = IEEE80211_SMPS_STATIC;
 635                         break;
 636                 }
 637                 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
 638                         smps_mode = IEEE80211_SMPS_DYNAMIC;
 639         }
 640
 641         ieee80211_request_smps(vif, smps_mode);
 642 }
 643
 644 static void iwl_mvm_diversity_iter(void *_data, u8 *mac,
 645                                    struct ieee80211_vif *vif)
 646 {
 647         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 648         bool *result = _data;
 649         int i;
 650
 651         for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) {
 652                 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC ||
 653                     mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC)
 654                         *result = false;
 655         }
 656 }
 657
 658 bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm)
 659 {
 660         bool result = true;
 661
 662         lockdep_assert_held(&mvm->mutex);
 663
 664         if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1)
 665                 return false;
 666
 667         if (!mvm->cfg->rx_with_siso_diversity)
 668                 return false;
 669
 670         ieee80211_iterate_active_interfaces_atomic(
 671                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 672                         iwl_mvm_diversity_iter, &result);
 673
 674         return result;
 675 }
 676
 677 int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 678                                bool value)
 679 {
 680         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 681         int res;
 682
 683         lockdep_assert_held(&mvm->mutex);
 684
 685         if (mvmvif->low_latency == value)
 686                 return 0;
 687
 688         mvmvif->low_latency = value;
 689
 690         res = iwl_mvm_update_quotas(mvm, NULL);
 691         if (res)
 692                 return res;
 693
 694         iwl_mvm_bt_coex_vif_change(mvm);
 695
 696         return iwl_mvm_power_update_mac(mvm);
 697 }
 698
 699 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
 700 {
 701         bool *result = _data;
 702
 703         if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif)))
 704                 *result = true;
 705 }
 706
 707 bool iwl_mvm_low_latency(struct iwl_mvm *mvm)
 708 {
 709         bool result = false;
 710
 711         ieee80211_iterate_active_interfaces_atomic(
 712                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 713                         iwl_mvm_ll_iter, &result);
 714
 715         return result;
 716 }
 717
 718 static void iwl_mvm_idle_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
 719 {
 720         bool *idle = _data;
 721
 722         if (!vif->bss_conf.idle)
 723                 *idle = false;
 724 }
 725
 726 bool iwl_mvm_is_idle(struct iwl_mvm *mvm)
 727 {
 728         bool idle = true;
 729
 730         ieee80211_iterate_active_interfaces_atomic(
 731                         mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 732                         iwl_mvm_idle_iter, &idle);
 733
 734         return idle;
 735 }
 736
 737 struct iwl_bss_iter_data {
 738         struct ieee80211_vif *vif;
 739         bool error;
 740 };
 741
 742 static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac,
 743                                        struct ieee80211_vif *vif)
 744 {
 745         struct iwl_bss_iter_data *data = _data;
 746
 747         if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
 748                 return;
 749
 750         if (data->vif) {
 751                 data->error = true;
 752                 return;
 753         }
 754
 755         data->vif = vif;
 756 }
 757
 758 struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm)
 759 {
 760         struct iwl_bss_iter_data bss_iter_data = {};
 761
 762         ieee80211_iterate_active_interfaces_atomic(
 763                 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 764                 iwl_mvm_bss_iface_iterator, &bss_iter_data);
 765
 766         if (bss_iter_data.error) {
 767                 IWL_ERR(mvm, "More than one managed interface active!\n");
 768                 return ERR_PTR(-EINVAL);
 769         }
 770
 771         return bss_iter_data.vif;
 772 }