linux/drivers/net/wireless/ath/ath10k/htt.c
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   1// SPDX-License-Identifier: ISC
   2/*
   3 * Copyright (c) 2005-2011 Atheros Communications Inc.
   4 * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
   5 */
   6
   7#include <linux/slab.h>
   8#include <linux/if_ether.h>
   9
  10#include "htt.h"
  11#include "core.h"
  12#include "debug.h"
  13#include "hif.h"
  14
  15static const enum htt_t2h_msg_type htt_main_t2h_msg_types[] = {
  16        [HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  17        [HTT_MAIN_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  18        [HTT_MAIN_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  19        [HTT_MAIN_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  20        [HTT_MAIN_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  21        [HTT_MAIN_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  22        [HTT_MAIN_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  23        [HTT_MAIN_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  24        [HTT_MAIN_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  25        [HTT_MAIN_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  26        [HTT_MAIN_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  27        [HTT_MAIN_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  28        [HTT_MAIN_T2H_MSG_TYPE_TX_INSPECT_IND] =
  29                HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  30        [HTT_MAIN_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  31                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  32        [HTT_MAIN_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
  33                HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
  34        [HTT_MAIN_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
  35        [HTT_MAIN_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
  36                HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
  37        [HTT_MAIN_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
  38};
  39
  40static const enum htt_t2h_msg_type htt_10x_t2h_msg_types[] = {
  41        [HTT_10X_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  42        [HTT_10X_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  43        [HTT_10X_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  44        [HTT_10X_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  45        [HTT_10X_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  46        [HTT_10X_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  47        [HTT_10X_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  48        [HTT_10X_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  49        [HTT_10X_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  50        [HTT_10X_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  51        [HTT_10X_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  52        [HTT_10X_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  53        [HTT_10X_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
  54        [HTT_10X_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  55        [HTT_10X_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
  56        [HTT_10X_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
  57        [HTT_10X_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
  58        [HTT_10X_T2H_MSG_TYPE_STATS_NOUPLOAD] = HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
  59        [HTT_10X_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  60                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  61};
  62
  63static const enum htt_t2h_msg_type htt_tlv_t2h_msg_types[] = {
  64        [HTT_TLV_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  65        [HTT_TLV_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  66        [HTT_TLV_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  67        [HTT_TLV_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  68        [HTT_TLV_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  69        [HTT_TLV_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  70        [HTT_TLV_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  71        [HTT_TLV_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  72        [HTT_TLV_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  73        [HTT_TLV_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  74        [HTT_TLV_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  75        [HTT_TLV_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  76        [HTT_TLV_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
  77        [HTT_TLV_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  78        [HTT_TLV_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  79                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  80        [HTT_TLV_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
  81                HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
  82        [HTT_TLV_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
  83        [HTT_TLV_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
  84                HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
  85        [HTT_TLV_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND] =
  86                HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND,
  87        [HTT_TLV_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE] =
  88                HTT_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE,
  89        [HTT_TLV_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
  90        [HTT_TLV_T2H_MSG_TYPE_RX_OFLD_PKT_ERR] =
  91                HTT_T2H_MSG_TYPE_RX_OFLD_PKT_ERR,
  92        [HTT_TLV_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
  93};
  94
  95static const enum htt_t2h_msg_type htt_10_4_t2h_msg_types[] = {
  96        [HTT_10_4_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  97        [HTT_10_4_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  98        [HTT_10_4_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  99        [HTT_10_4_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
 100        [HTT_10_4_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
 101        [HTT_10_4_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
 102        [HTT_10_4_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
 103        [HTT_10_4_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
 104        [HTT_10_4_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
 105        [HTT_10_4_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
 106        [HTT_10_4_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
 107        [HTT_10_4_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
 108        [HTT_10_4_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
 109        [HTT_10_4_T2H_MSG_TYPE_TX_INSPECT_IND] =
 110                                HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
 111        [HTT_10_4_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
 112                                HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
 113        [HTT_10_4_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
 114        [HTT_10_4_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
 115                                HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
 116        [HTT_10_4_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
 117        [HTT_10_4_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
 118                                HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
 119        [HTT_10_4_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
 120        [HTT_10_4_T2H_MSG_TYPE_EN_STATS] = HTT_T2H_MSG_TYPE_EN_STATS,
 121        [HTT_10_4_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
 122        [HTT_10_4_T2H_MSG_TYPE_TX_FETCH_IND] =
 123                                HTT_T2H_MSG_TYPE_TX_FETCH_IND,
 124        [HTT_10_4_T2H_MSG_TYPE_TX_FETCH_CONFIRM] =
 125                                HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM,
 126        [HTT_10_4_T2H_MSG_TYPE_STATS_NOUPLOAD] =
 127                                HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
 128        [HTT_10_4_T2H_MSG_TYPE_TX_MODE_SWITCH_IND] =
 129                                HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND,
 130        [HTT_10_4_T2H_MSG_TYPE_PEER_STATS] =
 131                                HTT_T2H_MSG_TYPE_PEER_STATS,
 132};
 133
 134int ath10k_htt_connect(struct ath10k_htt *htt)
 135{
 136        struct ath10k_htc_svc_conn_req conn_req;
 137        struct ath10k_htc_svc_conn_resp conn_resp;
 138        struct ath10k *ar = htt->ar;
 139        struct ath10k_htc_ep *ep;
 140        int status;
 141
 142        memset(&conn_req, 0, sizeof(conn_req));
 143        memset(&conn_resp, 0, sizeof(conn_resp));
 144
 145        conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
 146        conn_req.ep_ops.ep_rx_complete = ath10k_htt_htc_t2h_msg_handler;
 147        conn_req.ep_ops.ep_tx_credits = ath10k_htt_op_ep_tx_credits;
 148
 149        /* connect to control service */
 150        conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
 151
 152        status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
 153                                            &conn_resp);
 154
 155        if (status)
 156                return status;
 157
 158        htt->eid = conn_resp.eid;
 159
 160        if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) {
 161                ep = &ar->htc.endpoint[htt->eid];
 162                ath10k_htc_setup_tx_req(ep);
 163        }
 164
 165        htt->disable_tx_comp = ath10k_hif_get_htt_tx_complete(htt->ar);
 166        if (htt->disable_tx_comp)
 167                ath10k_htc_change_tx_credit_flow(&htt->ar->htc, htt->eid, true);
 168
 169        return 0;
 170}
 171
 172int ath10k_htt_init(struct ath10k *ar)
 173{
 174        struct ath10k_htt *htt = &ar->htt;
 175
 176        htt->ar = ar;
 177
 178        /*
 179         * Prefetch enough data to satisfy target
 180         * classification engine.
 181         * This is for LL chips. HL chips will probably
 182         * transfer all frame in the tx fragment.
 183         */
 184        htt->prefetch_len =
 185                36 + /* 802.11 + qos + ht */
 186                4 + /* 802.1q */
 187                8 + /* llc snap */
 188                2; /* ip4 dscp or ip6 priority */
 189
 190        switch (ar->running_fw->fw_file.htt_op_version) {
 191        case ATH10K_FW_HTT_OP_VERSION_10_4:
 192                ar->htt.t2h_msg_types = htt_10_4_t2h_msg_types;
 193                ar->htt.t2h_msg_types_max = HTT_10_4_T2H_NUM_MSGS;
 194                break;
 195        case ATH10K_FW_HTT_OP_VERSION_10_1:
 196                ar->htt.t2h_msg_types = htt_10x_t2h_msg_types;
 197                ar->htt.t2h_msg_types_max = HTT_10X_T2H_NUM_MSGS;
 198                break;
 199        case ATH10K_FW_HTT_OP_VERSION_TLV:
 200                ar->htt.t2h_msg_types = htt_tlv_t2h_msg_types;
 201                ar->htt.t2h_msg_types_max = HTT_TLV_T2H_NUM_MSGS;
 202                break;
 203        case ATH10K_FW_HTT_OP_VERSION_MAIN:
 204                ar->htt.t2h_msg_types = htt_main_t2h_msg_types;
 205                ar->htt.t2h_msg_types_max = HTT_MAIN_T2H_NUM_MSGS;
 206                break;
 207        case ATH10K_FW_HTT_OP_VERSION_MAX:
 208        case ATH10K_FW_HTT_OP_VERSION_UNSET:
 209                WARN_ON(1);
 210                return -EINVAL;
 211        }
 212        ath10k_htt_set_tx_ops(htt);
 213        ath10k_htt_set_rx_ops(htt);
 214
 215        return 0;
 216}
 217
 218#define HTT_TARGET_VERSION_TIMEOUT_HZ (3 * HZ)
 219
 220static int ath10k_htt_verify_version(struct ath10k_htt *htt)
 221{
 222        struct ath10k *ar = htt->ar;
 223
 224        ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt target version %d.%d\n",
 225                   htt->target_version_major, htt->target_version_minor);
 226
 227        if (htt->target_version_major != 2 &&
 228            htt->target_version_major != 3) {
 229                ath10k_err(ar, "unsupported htt major version %d. supported versions are 2 and 3\n",
 230                           htt->target_version_major);
 231                return -ENOTSUPP;
 232        }
 233
 234        return 0;
 235}
 236
 237int ath10k_htt_setup(struct ath10k_htt *htt)
 238{
 239        struct ath10k *ar = htt->ar;
 240        int status;
 241
 242        init_completion(&htt->target_version_received);
 243
 244        status = ath10k_htt_h2t_ver_req_msg(htt);
 245        if (status)
 246                return status;
 247
 248        status = wait_for_completion_timeout(&htt->target_version_received,
 249                                             HTT_TARGET_VERSION_TIMEOUT_HZ);
 250        if (status == 0) {
 251                ath10k_warn(ar, "htt version request timed out\n");
 252                return -ETIMEDOUT;
 253        }
 254
 255        status = ath10k_htt_verify_version(htt);
 256        if (status) {
 257                ath10k_warn(ar, "failed to verify htt version: %d\n",
 258                            status);
 259                return status;
 260        }
 261
 262        status = ath10k_htt_send_frag_desc_bank_cfg(htt);
 263        if (status)
 264                return status;
 265
 266        status = ath10k_htt_send_rx_ring_cfg(htt);
 267        if (status) {
 268                ath10k_warn(ar, "failed to setup rx ring: %d\n",
 269                            status);
 270                return status;
 271        }
 272
 273        status = ath10k_htt_h2t_aggr_cfg_msg(htt,
 274                                             htt->max_num_ampdu,
 275                                             htt->max_num_amsdu);
 276        if (status) {
 277                ath10k_warn(ar, "failed to setup amsdu/ampdu limit: %d\n",
 278                            status);
 279                return status;
 280        }
 281
 282        return 0;
 283}
 284