diff options
Diffstat (limited to 'net/mac80211/main.c')
| -rw-r--r-- | net/mac80211/main.c | 78 |
1 files changed, 71 insertions, 7 deletions
diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 513627896204..83e71e6b2ebe 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -4,6 +4,7 @@ * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> * Copyright 2013-2014 Intel Mobile Communications GmbH * Copyright (C) 2017 Intel Deutschland GmbH + * Copyright (C) 2018 Intel Corporation * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -610,6 +611,18 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, local->ops = ops; local->use_chanctx = use_chanctx; + /* + * We need a bit of data queued to build aggregates properly, so + * instruct the TCP stack to allow more than a single ms of data + * to be queued in the stack. The value is a bit-shift of 1 + * second, so 8 is ~4ms of queued data. Only affects local TCP + * sockets. + * This is the default, anyhow - drivers may need to override it + * for local reasons (longer buffers, longer completion time, or + * similar). + */ + local->hw.tx_sk_pacing_shift = 8; + /* set up some defaults */ local->hw.queues = 1; local->hw.max_rates = 1; @@ -684,6 +697,10 @@ struct ieee80211_hw *ieee80211_alloc_hw_nm(size_t priv_data_len, tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending, (unsigned long)local); + if (ops->wake_tx_queue) + tasklet_init(&local->wake_txqs_tasklet, ieee80211_wake_txqs, + (unsigned long)local); + tasklet_init(&local->tasklet, ieee80211_tasklet_handler, (unsigned long) local); @@ -1154,6 +1171,53 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) goto fail_rate; } + if (local->rate_ctrl) { + clear_bit(IEEE80211_HW_SUPPORTS_VHT_EXT_NSS_BW, hw->flags); + if (local->rate_ctrl->ops->capa & RATE_CTRL_CAPA_VHT_EXT_NSS_BW) + ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW); + } + + /* + * If the VHT capabilities don't have IEEE80211_VHT_EXT_NSS_BW_CAPABLE, + * or have it when we don't, copy the sband structure and set/clear it. + * This is necessary because rate scaling algorithms could be switched + * and have different support values. + * Print a message so that in the common case the reallocation can be + * avoided. + */ + BUILD_BUG_ON(NUM_NL80211_BANDS > 8 * sizeof(local->sband_allocated)); + for (band = 0; band < NUM_NL80211_BANDS; band++) { + struct ieee80211_supported_band *sband; + bool local_cap, ie_cap; + + local_cap = ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW); + + sband = local->hw.wiphy->bands[band]; + if (!sband || !sband->vht_cap.vht_supported) + continue; + + ie_cap = !!(sband->vht_cap.vht_mcs.tx_highest & + cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE)); + + if (local_cap == ie_cap) + continue; + + sband = kmemdup(sband, sizeof(*sband), GFP_KERNEL); + if (!sband) { + result = -ENOMEM; + goto fail_rate; + } + + wiphy_dbg(hw->wiphy, "copying sband (band %d) due to VHT EXT NSS BW flag\n", + band); + + sband->vht_cap.vht_mcs.tx_highest ^= + cpu_to_le16(IEEE80211_VHT_EXT_NSS_BW_CAPABLE); + + local->hw.wiphy->bands[band] = sband; + local->sband_allocated |= BIT(band); + } + /* add one default STA interface if supported */ if (local->hw.wiphy->interface_modes & BIT(NL80211_IFTYPE_STATION) && !ieee80211_hw_check(hw, NO_AUTO_VIF)) { @@ -1272,6 +1336,7 @@ static int ieee80211_free_ack_frame(int id, void *p, void *data) void ieee80211_free_hw(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); + enum nl80211_band band; mutex_destroy(&local->iflist_mtx); mutex_destroy(&local->mtx); @@ -1287,6 +1352,12 @@ void ieee80211_free_hw(struct ieee80211_hw *hw) ieee80211_free_led_names(local); + for (band = 0; band < NUM_NL80211_BANDS; band++) { + if (!(local->sband_allocated & BIT(band))) + continue; + kfree(local->hw.wiphy->bands[band]); + } + wiphy_free(local->hw.wiphy); } EXPORT_SYMBOL(ieee80211_free_hw); @@ -1304,18 +1375,12 @@ static int __init ieee80211_init(void) if (ret) return ret; - ret = rc80211_minstrel_ht_init(); - if (ret) - goto err_minstrel; - ret = ieee80211_iface_init(); if (ret) goto err_netdev; return 0; err_netdev: - rc80211_minstrel_ht_exit(); - err_minstrel: rc80211_minstrel_exit(); return ret; @@ -1323,7 +1388,6 @@ static int __init ieee80211_init(void) static void __exit ieee80211_exit(void) { - rc80211_minstrel_ht_exit(); rc80211_minstrel_exit(); ieee80211s_stop(); |