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

   1 /*
   2  * Copyright (c) 2005-2011 Atheros Communications Inc.
   3  * Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 #include <linux/slab.h>
  19 #include <linux/if_ether.h>
  20
  21 #include "htt.h"
  22 #include "core.h"
  23 #include "debug.h"
  24
  25 static const enum htt_t2h_msg_type htt_main_t2h_msg_types[] = {
  26         [HTT_MAIN_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  27         [HTT_MAIN_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  28         [HTT_MAIN_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  29         [HTT_MAIN_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  30         [HTT_MAIN_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  31         [HTT_MAIN_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  32         [HTT_MAIN_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  33         [HTT_MAIN_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  34         [HTT_MAIN_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  35         [HTT_MAIN_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  36         [HTT_MAIN_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  37         [HTT_MAIN_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  38         [HTT_MAIN_T2H_MSG_TYPE_TX_INSPECT_IND] =
  39                 HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  40         [HTT_MAIN_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  41                 HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  42         [HTT_MAIN_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
  43                 HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
  44         [HTT_MAIN_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
  45         [HTT_MAIN_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
  46                 HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
  47         [HTT_MAIN_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
  48 };
  49
  50 static const enum htt_t2h_msg_type htt_10x_t2h_msg_types[] = {
  51         [HTT_10X_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  52         [HTT_10X_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  53         [HTT_10X_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  54         [HTT_10X_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  55         [HTT_10X_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  56         [HTT_10X_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  57         [HTT_10X_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  58         [HTT_10X_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  59         [HTT_10X_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  60         [HTT_10X_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  61         [HTT_10X_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  62         [HTT_10X_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  63         [HTT_10X_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
  64         [HTT_10X_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  65         [HTT_10X_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
  66         [HTT_10X_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
  67         [HTT_10X_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
  68         [HTT_10X_T2H_MSG_TYPE_STATS_NOUPLOAD] = HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
  69         [HTT_10X_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  70                 HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  71 };
  72
  73 static const enum htt_t2h_msg_type htt_tlv_t2h_msg_types[] = {
  74         [HTT_TLV_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
  75         [HTT_TLV_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
  76         [HTT_TLV_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
  77         [HTT_TLV_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
  78         [HTT_TLV_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
  79         [HTT_TLV_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
  80         [HTT_TLV_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
  81         [HTT_TLV_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
  82         [HTT_TLV_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
  83         [HTT_TLV_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
  84         [HTT_TLV_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
  85         [HTT_TLV_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
  86         [HTT_TLV_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
  87         [HTT_TLV_T2H_MSG_TYPE_TX_INSPECT_IND] = HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
  88         [HTT_TLV_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
  89                 HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
  90         [HTT_TLV_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
  91                 HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
  92         [HTT_TLV_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
  93         [HTT_TLV_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
  94                 HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
  95         [HTT_TLV_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND] =
  96                 HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND,
  97         [HTT_TLV_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE] =
  98                 HTT_T2H_MSG_TYPE_WDI_IPA_OP_RESPONSE,
  99         [HTT_TLV_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
 100         [HTT_TLV_T2H_MSG_TYPE_RX_OFLD_PKT_ERR] =
 101                 HTT_T2H_MSG_TYPE_RX_OFLD_PKT_ERR,
 102         [HTT_TLV_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
 103 };
 104
 105 static const enum htt_t2h_msg_type htt_10_4_t2h_msg_types[] = {
 106         [HTT_10_4_T2H_MSG_TYPE_VERSION_CONF] = HTT_T2H_MSG_TYPE_VERSION_CONF,
 107         [HTT_10_4_T2H_MSG_TYPE_RX_IND] = HTT_T2H_MSG_TYPE_RX_IND,
 108         [HTT_10_4_T2H_MSG_TYPE_RX_FLUSH] = HTT_T2H_MSG_TYPE_RX_FLUSH,
 109         [HTT_10_4_T2H_MSG_TYPE_PEER_MAP] = HTT_T2H_MSG_TYPE_PEER_MAP,
 110         [HTT_10_4_T2H_MSG_TYPE_PEER_UNMAP] = HTT_T2H_MSG_TYPE_PEER_UNMAP,
 111         [HTT_10_4_T2H_MSG_TYPE_RX_ADDBA] = HTT_T2H_MSG_TYPE_RX_ADDBA,
 112         [HTT_10_4_T2H_MSG_TYPE_RX_DELBA] = HTT_T2H_MSG_TYPE_RX_DELBA,
 113         [HTT_10_4_T2H_MSG_TYPE_TX_COMPL_IND] = HTT_T2H_MSG_TYPE_TX_COMPL_IND,
 114         [HTT_10_4_T2H_MSG_TYPE_PKTLOG] = HTT_T2H_MSG_TYPE_PKTLOG,
 115         [HTT_10_4_T2H_MSG_TYPE_STATS_CONF] = HTT_T2H_MSG_TYPE_STATS_CONF,
 116         [HTT_10_4_T2H_MSG_TYPE_RX_FRAG_IND] = HTT_T2H_MSG_TYPE_RX_FRAG_IND,
 117         [HTT_10_4_T2H_MSG_TYPE_SEC_IND] = HTT_T2H_MSG_TYPE_SEC_IND,
 118         [HTT_10_4_T2H_MSG_TYPE_RC_UPDATE_IND] = HTT_T2H_MSG_TYPE_RC_UPDATE_IND,
 119         [HTT_10_4_T2H_MSG_TYPE_TX_INSPECT_IND] =
 120                                 HTT_T2H_MSG_TYPE_TX_INSPECT_IND,
 121         [HTT_10_4_T2H_MSG_TYPE_MGMT_TX_COMPL_IND] =
 122                                 HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION,
 123         [HTT_10_4_T2H_MSG_TYPE_CHAN_CHANGE] = HTT_T2H_MSG_TYPE_CHAN_CHANGE,
 124         [HTT_10_4_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND] =
 125                                 HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND,
 126         [HTT_10_4_T2H_MSG_TYPE_RX_PN_IND] = HTT_T2H_MSG_TYPE_RX_PN_IND,
 127         [HTT_10_4_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND] =
 128                                 HTT_T2H_MSG_TYPE_RX_OFFLOAD_DELIVER_IND,
 129         [HTT_10_4_T2H_MSG_TYPE_TEST] = HTT_T2H_MSG_TYPE_TEST,
 130         [HTT_10_4_T2H_MSG_TYPE_EN_STATS] = HTT_T2H_MSG_TYPE_EN_STATS,
 131         [HTT_10_4_T2H_MSG_TYPE_AGGR_CONF] = HTT_T2H_MSG_TYPE_AGGR_CONF,
 132         [HTT_10_4_T2H_MSG_TYPE_TX_FETCH_IND] =
 133                                 HTT_T2H_MSG_TYPE_TX_FETCH_IND,
 134         [HTT_10_4_T2H_MSG_TYPE_TX_FETCH_CONF] =
 135                                 HTT_T2H_MSG_TYPE_TX_FETCH_CONF,
 136         [HTT_10_4_T2H_MSG_TYPE_STATS_NOUPLOAD] =
 137                                 HTT_T2H_MSG_TYPE_STATS_NOUPLOAD,
 138         [HTT_10_4_T2H_MSG_TYPE_TX_LOW_LATENCY_IND] =
 139                                 HTT_T2H_MSG_TYPE_TX_LOW_LATENCY_IND,
 140 };
 141
 142 int ath10k_htt_connect(struct ath10k_htt *htt)
 143 {
 144         struct ath10k_htc_svc_conn_req conn_req;
 145         struct ath10k_htc_svc_conn_resp conn_resp;
 146         int status;
 147
 148         memset(&conn_req, 0, sizeof(conn_req));
 149         memset(&conn_resp, 0, sizeof(conn_resp));
 150
 151         conn_req.ep_ops.ep_tx_complete = ath10k_htt_htc_tx_complete;
 152         conn_req.ep_ops.ep_rx_complete = ath10k_htt_t2h_msg_handler;
 153
 154         /* connect to control service */
 155         conn_req.service_id = ATH10K_HTC_SVC_ID_HTT_DATA_MSG;
 156
 157         status = ath10k_htc_connect_service(&htt->ar->htc, &conn_req,
 158                                             &conn_resp);
 159
 160         if (status)
 161                 return status;
 162
 163         htt->eid = conn_resp.eid;
 164
 165         return 0;
 166 }
 167
 168 int ath10k_htt_init(struct ath10k *ar)
 169 {
 170         struct ath10k_htt *htt = &ar->htt;
 171
 172         htt->ar = ar;
 173
 174         /*
 175          * Prefetch enough data to satisfy target
 176          * classification engine.
 177          * This is for LL chips. HL chips will probably
 178          * transfer all frame in the tx fragment.
 179          */
 180         htt->prefetch_len =
 181                 36 + /* 802.11 + qos + ht */
 182                 4 + /* 802.1q */
 183                 8 + /* llc snap */
 184                 2; /* ip4 dscp or ip6 priority */
 185
 186         switch (ar->htt.op_version) {
 187         case ATH10K_FW_HTT_OP_VERSION_10_4:
 188                 ar->htt.t2h_msg_types = htt_10_4_t2h_msg_types;
 189                 ar->htt.t2h_msg_types_max = HTT_10_4_T2H_NUM_MSGS;
 190                 break;
 191         case ATH10K_FW_HTT_OP_VERSION_10_1:
 192                 ar->htt.t2h_msg_types = htt_10x_t2h_msg_types;
 193                 ar->htt.t2h_msg_types_max = HTT_10X_T2H_NUM_MSGS;
 194                 break;
 195         case ATH10K_FW_HTT_OP_VERSION_TLV:
 196                 ar->htt.t2h_msg_types = htt_tlv_t2h_msg_types;
 197                 ar->htt.t2h_msg_types_max = HTT_TLV_T2H_NUM_MSGS;
 198                 break;
 199         case ATH10K_FW_HTT_OP_VERSION_MAIN:
 200                 ar->htt.t2h_msg_types = htt_main_t2h_msg_types;
 201                 ar->htt.t2h_msg_types_max = HTT_MAIN_T2H_NUM_MSGS;
 202                 break;
 203         case ATH10K_FW_HTT_OP_VERSION_MAX:
 204         case ATH10K_FW_HTT_OP_VERSION_UNSET:
 205                 WARN_ON(1);
 206                 return -EINVAL;
 207         }
 208         return 0;
 209 }
 210
 211 #define HTT_TARGET_VERSION_TIMEOUT_HZ (3*HZ)
 212
 213 static int ath10k_htt_verify_version(struct ath10k_htt *htt)
 214 {
 215         struct ath10k *ar = htt->ar;
 216
 217         ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt target version %d.%d\n",
 218                    htt->target_version_major, htt->target_version_minor);
 219
 220         if (htt->target_version_major != 2 &&
 221             htt->target_version_major != 3) {
 222                 ath10k_err(ar, "unsupported htt major version %d. supported versions are 2 and 3\n",
 223                            htt->target_version_major);
 224                 return -ENOTSUPP;
 225         }
 226
 227         return 0;
 228 }
 229
 230 int ath10k_htt_setup(struct ath10k_htt *htt)
 231 {
 232         struct ath10k *ar = htt->ar;
 233         int status;
 234
 235         init_completion(&htt->target_version_received);
 236
 237         status = ath10k_htt_h2t_ver_req_msg(htt);
 238         if (status)
 239                 return status;
 240
 241         status = wait_for_completion_timeout(&htt->target_version_received,
 242                                              HTT_TARGET_VERSION_TIMEOUT_HZ);
 243         if (status == 0) {
 244                 ath10k_warn(ar, "htt version request timed out\n");
 245                 return -ETIMEDOUT;
 246         }
 247
 248         status = ath10k_htt_verify_version(htt);
 249         if (status) {
 250                 ath10k_warn(ar, "failed to verify htt version: %d\n",
 251                             status);
 252                 return status;
 253         }
 254
 255         status = ath10k_htt_send_frag_desc_bank_cfg(htt);
 256         if (status)
 257                 return status;
 258
 259         status = ath10k_htt_send_rx_ring_cfg_ll(htt);
 260         if (status) {
 261                 ath10k_warn(ar, "failed to setup rx ring: %d\n",
 262                             status);
 263                 return status;
 264         }
 265
 266         status = ath10k_htt_h2t_aggr_cfg_msg(htt,
 267                                              htt->max_num_ampdu,
 268                                              htt->max_num_amsdu);
 269         if (status) {
 270                 ath10k_warn(ar, "failed to setup amsdu/ampdu limit: %d\n",
 271                             status);
 272                 return status;
 273         }
 274
 275         return 0;
 276 }