drivers/net/wireless/ath/ath10k/htt.c

   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
  15 static 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
  40 static 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
  63 static 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
  95 static 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
 134 int 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
 172 int 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
 220 static 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
 237 int 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 }