drivers/net/wireless/intel/iwlwifi/fw/init.c

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2017 Intel Deutschland GmbH
   4  * Copyright (C) 2019-2021 Intel Corporation
   5  */
   6 #include "iwl-drv.h"
   7 #include "runtime.h"
   8 #include "dbg.h"
   9 #include "debugfs.h"
  10
  11 #include "fw/api/system.h"
  12 #include "fw/api/commands.h"
  13 #include "fw/api/rx.h"
  14 #include "fw/api/datapath.h"
  15
  16 void iwl_fw_runtime_init(struct iwl_fw_runtime *fwrt, struct iwl_trans *trans,
  17                         const struct iwl_fw *fw,
  18                         const struct iwl_fw_runtime_ops *ops, void *ops_ctx,
  19                         const struct iwl_dump_sanitize_ops *sanitize_ops,
  20                         void *sanitize_ctx,
  21                         struct dentry *dbgfs_dir)
  22 {
  23         int i;
  24
  25         memset(fwrt, 0, sizeof(*fwrt));
  26         fwrt->trans = trans;
  27         fwrt->fw = fw;
  28         fwrt->dev = trans->dev;
  29         fwrt->dump.conf = FW_DBG_INVALID;
  30         fwrt->ops = ops;
  31         fwrt->sanitize_ops = sanitize_ops;
  32         fwrt->sanitize_ctx = sanitize_ctx;
  33         fwrt->ops_ctx = ops_ctx;
  34         for (i = 0; i < IWL_FW_RUNTIME_DUMP_WK_NUM; i++) {
  35                 fwrt->dump.wks[i].idx = i;
  36                 INIT_DELAYED_WORK(&fwrt->dump.wks[i].wk, iwl_fw_error_dump_wk);
  37         }
  38         iwl_fwrt_dbgfs_register(fwrt, dbgfs_dir);
  39 }
  40 IWL_EXPORT_SYMBOL(iwl_fw_runtime_init);
  41
  42 void iwl_fw_runtime_suspend(struct iwl_fw_runtime *fwrt)
  43 {
  44         iwl_fw_suspend_timestamp(fwrt);
  45         iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_HOST_D3_START, NULL);
  46 }
  47 IWL_EXPORT_SYMBOL(iwl_fw_runtime_suspend);
  48
  49 void iwl_fw_runtime_resume(struct iwl_fw_runtime *fwrt)
  50 {
  51         iwl_dbg_tlv_time_point(fwrt, IWL_FW_INI_TIME_POINT_HOST_D3_END, NULL);
  52         iwl_fw_resume_timestamp(fwrt);
  53 }
  54 IWL_EXPORT_SYMBOL(iwl_fw_runtime_resume);
  55
  56 /* set device type and latency */
  57 int iwl_set_soc_latency(struct iwl_fw_runtime *fwrt)
  58 {
  59         struct iwl_soc_configuration_cmd cmd = {};
  60         struct iwl_host_cmd hcmd = {
  61                 .id = WIDE_ID(SYSTEM_GROUP, SOC_CONFIGURATION_CMD),
  62                 .data[0] = &cmd,
  63                 .len[0] = sizeof(cmd),
  64         };
  65         int ret;
  66
  67         /*
  68          * In VER_1 of this command, the discrete value is considered
  69          * an integer; In VER_2, it's a bitmask.  Since we have only 2
  70          * values in VER_1, this is backwards-compatible with VER_2,
  71          * as long as we don't set any other bits.
  72          */
  73         if (!fwrt->trans->trans_cfg->integrated)
  74                 cmd.flags = cpu_to_le32(SOC_CONFIG_CMD_FLAGS_DISCRETE);
  75
  76         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_NONE !=
  77                      SOC_FLAGS_LTR_APPLY_DELAY_NONE);
  78         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_200US !=
  79                      SOC_FLAGS_LTR_APPLY_DELAY_200);
  80         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_2500US !=
  81                      SOC_FLAGS_LTR_APPLY_DELAY_2500);
  82         BUILD_BUG_ON(IWL_CFG_TRANS_LTR_DELAY_1820US !=
  83                      SOC_FLAGS_LTR_APPLY_DELAY_1820);
  84
  85         if (fwrt->trans->trans_cfg->ltr_delay != IWL_CFG_TRANS_LTR_DELAY_NONE &&
  86             !WARN_ON(!fwrt->trans->trans_cfg->integrated))
  87                 cmd.flags |= le32_encode_bits(fwrt->trans->trans_cfg->ltr_delay,
  88                                               SOC_FLAGS_LTR_APPLY_DELAY_MASK);
  89
  90         if (iwl_fw_lookup_cmd_ver(fwrt->fw, SCAN_REQ_UMAC,
  91                                   IWL_FW_CMD_VER_UNKNOWN) >= 2 &&
  92             fwrt->trans->trans_cfg->low_latency_xtal)
  93                 cmd.flags |= cpu_to_le32(SOC_CONFIG_CMD_FLAGS_LOW_LATENCY);
  94
  95         cmd.latency = cpu_to_le32(fwrt->trans->trans_cfg->xtal_latency);
  96
  97         ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
  98         if (ret)
  99                 IWL_ERR(fwrt, "Failed to set soc latency: %d\n", ret);
 100         return ret;
 101 }
 102 IWL_EXPORT_SYMBOL(iwl_set_soc_latency);
 103
 104 int iwl_configure_rxq(struct iwl_fw_runtime *fwrt)
 105 {
 106         int i, num_queues, size, ret;
 107         struct iwl_rfh_queue_config *cmd;
 108         struct iwl_host_cmd hcmd = {
 109                 .id = WIDE_ID(DATA_PATH_GROUP, RFH_QUEUE_CONFIG_CMD),
 110                 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
 111         };
 112
 113         /*
 114          * The default queue is configured via context info, so if we
 115          * have a single queue, there's nothing to do here.
 116          */
 117         if (fwrt->trans->num_rx_queues == 1)
 118                 return 0;
 119
 120         if (fwrt->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_22000)
 121                 return 0;
 122
 123         /* skip the default queue */
 124         num_queues = fwrt->trans->num_rx_queues - 1;
 125
 126         size = struct_size(cmd, data, num_queues);
 127
 128         cmd = kzalloc(size, GFP_KERNEL);
 129         if (!cmd)
 130                 return -ENOMEM;
 131
 132         cmd->num_queues = num_queues;
 133
 134         for (i = 0; i < num_queues; i++) {
 135                 struct iwl_trans_rxq_dma_data data;
 136
 137                 cmd->data[i].q_num = i + 1;
 138                 iwl_trans_get_rxq_dma_data(fwrt->trans, i + 1, &data);
 139
 140                 cmd->data[i].fr_bd_cb = cpu_to_le64(data.fr_bd_cb);
 141                 cmd->data[i].urbd_stts_wrptr =
 142                         cpu_to_le64(data.urbd_stts_wrptr);
 143                 cmd->data[i].ur_bd_cb = cpu_to_le64(data.ur_bd_cb);
 144                 cmd->data[i].fr_bd_wid = cpu_to_le32(data.fr_bd_wid);
 145         }
 146
 147         hcmd.data[0] = cmd;
 148         hcmd.len[0] = size;
 149
 150         ret = iwl_trans_send_cmd(fwrt->trans, &hcmd);
 151
 152         kfree(cmd);
 153
 154         if (ret)
 155                 IWL_ERR(fwrt, "Failed to configure RX queues: %d\n", ret);
 156
 157         return ret;
 158 }
 159 IWL_EXPORT_SYMBOL(iwl_configure_rxq);