mac80211_hwsim: refactor radio registration
In order to support dynamic radio registration in the future, refactor the actual registration into a new function with only minor cleanups. Since it had to change anyway, also clean up the init error paths. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
parent
3a8cc5e73f
commit
f39c2bfa9a
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@ -2122,14 +2122,219 @@ static const struct ieee80211_iface_combination hwsim_if_comb[] = {
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}
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};
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static int __init init_mac80211_hwsim(void)
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static int __init mac80211_hwsim_create_radio(int idx)
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{
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int i, err = 0;
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int err;
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u8 addr[ETH_ALEN];
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struct mac80211_hwsim_data *data;
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struct ieee80211_hw *hw;
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enum ieee80211_band band;
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const struct ieee80211_ops *ops;
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const struct ieee80211_ops *ops = &mac80211_hwsim_ops;
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if (channels > 1)
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ops = &mac80211_hwsim_mchan_ops;
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hw = ieee80211_alloc_hw(sizeof(*data), ops);
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if (!hw) {
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printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw failed\n");
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err = -ENOMEM;
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goto failed;
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}
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data = hw->priv;
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data->hw = hw;
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data->dev = device_create(hwsim_class, NULL, 0, hw, "hwsim%d", idx);
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if (IS_ERR(data->dev)) {
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printk(KERN_DEBUG
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"mac80211_hwsim: device_create failed (%ld)\n",
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PTR_ERR(data->dev));
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err = -ENOMEM;
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goto failed_drvdata;
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}
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data->dev->driver = &mac80211_hwsim_driver.driver;
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err = device_bind_driver(data->dev);
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if (err != 0) {
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printk(KERN_DEBUG "mac80211_hwsim: device_bind_driver failed (%d)\n",
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err);
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goto failed_hw;
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}
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skb_queue_head_init(&data->pending);
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SET_IEEE80211_DEV(hw, data->dev);
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memset(addr, 0, ETH_ALEN);
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addr[0] = 0x02;
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addr[3] = idx >> 8;
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addr[4] = idx;
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memcpy(data->addresses[0].addr, addr, ETH_ALEN);
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memcpy(data->addresses[1].addr, addr, ETH_ALEN);
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data->addresses[1].addr[0] |= 0x40;
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hw->wiphy->n_addresses = 2;
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hw->wiphy->addresses = data->addresses;
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data->channels = channels;
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if (data->channels > 1) {
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hw->wiphy->max_scan_ssids = 255;
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hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
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hw->wiphy->max_remain_on_channel_duration = 1000;
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/* For channels > 1 DFS is not allowed */
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hw->wiphy->n_iface_combinations = 1;
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hw->wiphy->iface_combinations = &data->if_combination;
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data->if_combination = hwsim_if_comb[0];
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data->if_combination.num_different_channels = data->channels;
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} else {
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hw->wiphy->iface_combinations = hwsim_if_comb;
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hw->wiphy->n_iface_combinations = ARRAY_SIZE(hwsim_if_comb);
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}
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INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
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INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
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hw->queues = 5;
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hw->offchannel_tx_hw_queue = 4;
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hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
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BIT(NL80211_IFTYPE_AP) |
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BIT(NL80211_IFTYPE_P2P_CLIENT) |
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BIT(NL80211_IFTYPE_P2P_GO) |
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BIT(NL80211_IFTYPE_ADHOC) |
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BIT(NL80211_IFTYPE_MESH_POINT) |
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BIT(NL80211_IFTYPE_P2P_DEVICE);
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hw->flags = IEEE80211_HW_MFP_CAPABLE |
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IEEE80211_HW_SIGNAL_DBM |
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IEEE80211_HW_SUPPORTS_STATIC_SMPS |
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IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
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IEEE80211_HW_AMPDU_AGGREGATION |
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IEEE80211_HW_WANT_MONITOR_VIF |
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IEEE80211_HW_QUEUE_CONTROL |
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IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
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if (rctbl)
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hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
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hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
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WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
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WIPHY_FLAG_AP_UAPSD;
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hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
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/* ask mac80211 to reserve space for magic */
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hw->vif_data_size = sizeof(struct hwsim_vif_priv);
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hw->sta_data_size = sizeof(struct hwsim_sta_priv);
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hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
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memcpy(data->channels_2ghz, hwsim_channels_2ghz,
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sizeof(hwsim_channels_2ghz));
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memcpy(data->channels_5ghz, hwsim_channels_5ghz,
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sizeof(hwsim_channels_5ghz));
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memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
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for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
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struct ieee80211_supported_band *sband = &data->bands[band];
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switch (band) {
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case IEEE80211_BAND_2GHZ:
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sband->channels = data->channels_2ghz;
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sband->n_channels = ARRAY_SIZE(hwsim_channels_2ghz);
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sband->bitrates = data->rates;
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sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
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break;
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case IEEE80211_BAND_5GHZ:
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sband->channels = data->channels_5ghz;
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sband->n_channels = ARRAY_SIZE(hwsim_channels_5ghz);
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sband->bitrates = data->rates + 4;
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sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
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break;
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default:
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continue;
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}
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sband->ht_cap.ht_supported = true;
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sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
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IEEE80211_HT_CAP_GRN_FLD |
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IEEE80211_HT_CAP_SGI_40 |
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IEEE80211_HT_CAP_DSSSCCK40;
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sband->ht_cap.ampdu_factor = 0x3;
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sband->ht_cap.ampdu_density = 0x6;
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memset(&sband->ht_cap.mcs, 0,
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sizeof(sband->ht_cap.mcs));
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sband->ht_cap.mcs.rx_mask[0] = 0xff;
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sband->ht_cap.mcs.rx_mask[1] = 0xff;
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sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
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hw->wiphy->bands[band] = sband;
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sband->vht_cap.vht_supported = true;
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sband->vht_cap.cap =
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IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
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IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
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IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
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IEEE80211_VHT_CAP_RXLDPC |
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IEEE80211_VHT_CAP_SHORT_GI_80 |
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IEEE80211_VHT_CAP_SHORT_GI_160 |
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IEEE80211_VHT_CAP_TXSTBC |
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IEEE80211_VHT_CAP_RXSTBC_1 |
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IEEE80211_VHT_CAP_RXSTBC_2 |
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IEEE80211_VHT_CAP_RXSTBC_3 |
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IEEE80211_VHT_CAP_RXSTBC_4 |
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IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
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sband->vht_cap.vht_mcs.rx_mcs_map =
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cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
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IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
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IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
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IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
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sband->vht_cap.vht_mcs.tx_mcs_map =
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sband->vht_cap.vht_mcs.rx_mcs_map;
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}
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/* By default all radios belong to the first group */
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data->group = 1;
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mutex_init(&data->mutex);
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/* Enable frame retransmissions for lossy channels */
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hw->max_rates = 4;
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hw->max_rate_tries = 11;
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err = ieee80211_register_hw(hw);
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if (err < 0) {
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printk(KERN_DEBUG "mac80211_hwsim: ieee80211_register_hw failed (%d)\n",
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err);
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goto failed_hw;
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}
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wiphy_debug(hw->wiphy, "hwaddr %pM registered\n", hw->wiphy->perm_addr);
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data->debugfs = debugfs_create_dir("hwsim", hw->wiphy->debugfsdir);
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debugfs_create_file("ps", 0666, data->debugfs, data, &hwsim_fops_ps);
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debugfs_create_file("group", 0666, data->debugfs, data,
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&hwsim_fops_group);
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if (data->channels == 1)
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debugfs_create_file("dfs_simulate_radar", 0222,
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data->debugfs,
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data, &hwsim_simulate_radar);
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tasklet_hrtimer_init(&data->beacon_timer,
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mac80211_hwsim_beacon,
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CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
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spin_lock_bh(&hwsim_radio_lock);
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list_add_tail(&data->list, &hwsim_radios);
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spin_unlock_bh(&hwsim_radio_lock);
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return 0;
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failed_hw:
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device_unregister(data->dev);
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failed_drvdata:
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ieee80211_free_hw(hw);
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failed:
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return err;
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}
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static int __init init_mac80211_hwsim(void)
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{
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int i, err;
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if (radios < 1 || radios > 100)
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return -EINVAL;
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@ -2162,256 +2367,46 @@ static int __init init_mac80211_hwsim(void)
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hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
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if (IS_ERR(hwsim_class)) {
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err = PTR_ERR(hwsim_class);
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goto failed_unregister_driver;
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goto out_unregister_driver;
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}
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memset(addr, 0, ETH_ALEN);
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addr[0] = 0x02;
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for (i = 0; i < radios; i++) {
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printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
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i);
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ops = &mac80211_hwsim_ops;
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if (channels > 1)
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ops = &mac80211_hwsim_mchan_ops;
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hw = ieee80211_alloc_hw(sizeof(*data), ops);
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if (!hw) {
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printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
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"failed\n");
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err = -ENOMEM;
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goto failed;
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}
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data = hw->priv;
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data->hw = hw;
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data->dev = device_create(hwsim_class, NULL, 0, hw,
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"hwsim%d", i);
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if (IS_ERR(data->dev)) {
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printk(KERN_DEBUG
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"mac80211_hwsim: device_create failed (%ld)\n",
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PTR_ERR(data->dev));
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err = -ENOMEM;
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goto failed_drvdata;
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}
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data->dev->driver = &mac80211_hwsim_driver.driver;
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err = device_bind_driver(data->dev);
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if (err != 0) {
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printk(KERN_DEBUG
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"mac80211_hwsim: device_bind_driver failed (%d)\n",
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err);
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goto failed_hw;
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}
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skb_queue_head_init(&data->pending);
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SET_IEEE80211_DEV(hw, data->dev);
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addr[3] = i >> 8;
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addr[4] = i;
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memcpy(data->addresses[0].addr, addr, ETH_ALEN);
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memcpy(data->addresses[1].addr, addr, ETH_ALEN);
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data->addresses[1].addr[0] |= 0x40;
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hw->wiphy->n_addresses = 2;
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hw->wiphy->addresses = data->addresses;
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data->channels = channels;
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if (data->channels > 1) {
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hw->wiphy->max_scan_ssids = 255;
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hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
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hw->wiphy->max_remain_on_channel_duration = 1000;
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/* For channels > 1 DFS is not allowed */
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hw->wiphy->n_iface_combinations = 1;
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hw->wiphy->iface_combinations = &data->if_combination;
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data->if_combination = hwsim_if_comb[0];
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data->if_combination.num_different_channels =
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data->channels;
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} else {
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hw->wiphy->iface_combinations = hwsim_if_comb;
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hw->wiphy->n_iface_combinations =
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ARRAY_SIZE(hwsim_if_comb);
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}
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INIT_DELAYED_WORK(&data->roc_done, hw_roc_done);
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INIT_DELAYED_WORK(&data->hw_scan, hw_scan_work);
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hw->queues = 5;
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hw->offchannel_tx_hw_queue = 4;
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hw->wiphy->interface_modes =
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BIT(NL80211_IFTYPE_STATION) |
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BIT(NL80211_IFTYPE_AP) |
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BIT(NL80211_IFTYPE_P2P_CLIENT) |
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BIT(NL80211_IFTYPE_P2P_GO) |
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BIT(NL80211_IFTYPE_ADHOC) |
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BIT(NL80211_IFTYPE_MESH_POINT) |
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BIT(NL80211_IFTYPE_P2P_DEVICE);
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hw->flags = IEEE80211_HW_MFP_CAPABLE |
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IEEE80211_HW_SIGNAL_DBM |
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IEEE80211_HW_SUPPORTS_STATIC_SMPS |
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IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
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IEEE80211_HW_AMPDU_AGGREGATION |
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IEEE80211_HW_WANT_MONITOR_VIF |
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IEEE80211_HW_QUEUE_CONTROL |
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IEEE80211_HW_SUPPORTS_HT_CCK_RATES;
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if (rctbl)
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hw->flags |= IEEE80211_HW_SUPPORTS_RC_TABLE;
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hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS |
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WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |
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WIPHY_FLAG_AP_UAPSD;
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hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
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/* ask mac80211 to reserve space for magic */
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hw->vif_data_size = sizeof(struct hwsim_vif_priv);
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hw->sta_data_size = sizeof(struct hwsim_sta_priv);
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hw->chanctx_data_size = sizeof(struct hwsim_chanctx_priv);
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memcpy(data->channels_2ghz, hwsim_channels_2ghz,
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sizeof(hwsim_channels_2ghz));
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memcpy(data->channels_5ghz, hwsim_channels_5ghz,
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sizeof(hwsim_channels_5ghz));
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memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
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for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
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struct ieee80211_supported_band *sband = &data->bands[band];
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switch (band) {
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case IEEE80211_BAND_2GHZ:
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sband->channels = data->channels_2ghz;
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sband->n_channels =
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ARRAY_SIZE(hwsim_channels_2ghz);
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sband->bitrates = data->rates;
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sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
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break;
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case IEEE80211_BAND_5GHZ:
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sband->channels = data->channels_5ghz;
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sband->n_channels =
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ARRAY_SIZE(hwsim_channels_5ghz);
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sband->bitrates = data->rates + 4;
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sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
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break;
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default:
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continue;
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}
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sband->ht_cap.ht_supported = true;
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sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
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IEEE80211_HT_CAP_GRN_FLD |
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IEEE80211_HT_CAP_SGI_40 |
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IEEE80211_HT_CAP_DSSSCCK40;
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sband->ht_cap.ampdu_factor = 0x3;
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sband->ht_cap.ampdu_density = 0x6;
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memset(&sband->ht_cap.mcs, 0,
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sizeof(sband->ht_cap.mcs));
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sband->ht_cap.mcs.rx_mask[0] = 0xff;
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sband->ht_cap.mcs.rx_mask[1] = 0xff;
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sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
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hw->wiphy->bands[band] = sband;
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sband->vht_cap.vht_supported = true;
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sband->vht_cap.cap =
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IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
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IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ |
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IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ |
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IEEE80211_VHT_CAP_RXLDPC |
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IEEE80211_VHT_CAP_SHORT_GI_80 |
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IEEE80211_VHT_CAP_SHORT_GI_160 |
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IEEE80211_VHT_CAP_TXSTBC |
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IEEE80211_VHT_CAP_RXSTBC_1 |
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IEEE80211_VHT_CAP_RXSTBC_2 |
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IEEE80211_VHT_CAP_RXSTBC_3 |
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IEEE80211_VHT_CAP_RXSTBC_4 |
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IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
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sband->vht_cap.vht_mcs.rx_mcs_map =
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cpu_to_le16(IEEE80211_VHT_MCS_SUPPORT_0_8 << 0 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 2 |
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IEEE80211_VHT_MCS_SUPPORT_0_9 << 4 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 6 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 8 |
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IEEE80211_VHT_MCS_SUPPORT_0_9 << 10 |
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IEEE80211_VHT_MCS_SUPPORT_0_9 << 12 |
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IEEE80211_VHT_MCS_SUPPORT_0_8 << 14);
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||||
sband->vht_cap.vht_mcs.tx_mcs_map =
|
||||
sband->vht_cap.vht_mcs.rx_mcs_map;
|
||||
}
|
||||
/* By default all radios are belonging to the first group */
|
||||
data->group = 1;
|
||||
mutex_init(&data->mutex);
|
||||
|
||||
/* Enable frame retransmissions for lossy channels */
|
||||
hw->max_rates = 4;
|
||||
hw->max_rate_tries = 11;
|
||||
|
||||
err = ieee80211_register_hw(hw);
|
||||
if (err < 0) {
|
||||
printk(KERN_DEBUG "mac80211_hwsim: "
|
||||
"ieee80211_register_hw failed (%d)\n", err);
|
||||
goto failed_hw;
|
||||
}
|
||||
|
||||
wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
|
||||
hw->wiphy->perm_addr);
|
||||
|
||||
data->debugfs = debugfs_create_dir("hwsim",
|
||||
hw->wiphy->debugfsdir);
|
||||
debugfs_create_file("ps", 0666, data->debugfs, data,
|
||||
&hwsim_fops_ps);
|
||||
debugfs_create_file("group", 0666, data->debugfs, data,
|
||||
&hwsim_fops_group);
|
||||
if (channels == 1)
|
||||
debugfs_create_file("dfs_simulate_radar", 0222,
|
||||
data->debugfs,
|
||||
data, &hwsim_simulate_radar);
|
||||
|
||||
tasklet_hrtimer_init(&data->beacon_timer,
|
||||
mac80211_hwsim_beacon,
|
||||
CLOCK_MONOTONIC_RAW, HRTIMER_MODE_ABS);
|
||||
|
||||
list_add_tail(&data->list, &hwsim_radios);
|
||||
err = mac80211_hwsim_create_radio(i);
|
||||
if (err)
|
||||
goto out_free_radios;
|
||||
}
|
||||
|
||||
hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
|
||||
if (hwsim_mon == NULL) {
|
||||
err = -ENOMEM;
|
||||
goto failed;
|
||||
goto out_free_radios;
|
||||
}
|
||||
|
||||
rtnl_lock();
|
||||
|
||||
err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
|
||||
if (err < 0)
|
||||
goto failed_mon;
|
||||
|
||||
if (err < 0) {
|
||||
rtnl_unlock();
|
||||
goto out_free_radios;
|
||||
}
|
||||
|
||||
err = register_netdevice(hwsim_mon);
|
||||
if (err < 0)
|
||||
goto failed_mon;
|
||||
|
||||
if (err < 0) {
|
||||
rtnl_unlock();
|
||||
goto out_free_mon;
|
||||
}
|
||||
rtnl_unlock();
|
||||
|
||||
err = hwsim_init_netlink();
|
||||
if (err < 0)
|
||||
goto failed_nl;
|
||||
goto out_free_mon;
|
||||
|
||||
return 0;
|
||||
|
||||
failed_nl:
|
||||
printk(KERN_DEBUG "mac80211_hwsim: failed initializing netlink\n");
|
||||
return err;
|
||||
|
||||
failed_mon:
|
||||
rtnl_unlock();
|
||||
out_free_mon:
|
||||
free_netdev(hwsim_mon);
|
||||
out_free_radios:
|
||||
mac80211_hwsim_free();
|
||||
return err;
|
||||
|
||||
failed_hw:
|
||||
device_unregister(data->dev);
|
||||
failed_drvdata:
|
||||
ieee80211_free_hw(hw);
|
||||
failed:
|
||||
mac80211_hwsim_free();
|
||||
failed_unregister_driver:
|
||||
out_unregister_driver:
|
||||
platform_driver_unregister(&mac80211_hwsim_driver);
|
||||
return err;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue