diff options
author | Gregory Greenman <gregory.greenman@intel.com> | 2017-11-02 04:07:52 +0200 |
---|---|---|
committer | Luca Coelho <luciano.coelho@intel.com> | 2018-04-20 10:57:16 +0300 |
commit | 84226ca1c5d34e6a8492d12848e9cdf7752b834b (patch) | |
tree | 15676dfef3233911038cb53b2e990c74baac4f86 /drivers/net/wireless/intel/iwlwifi | |
parent | cf58c9e0915aad684aa8e9b82afd260c67ee7b22 (diff) | |
download | op-kernel-dev-84226ca1c5d34e6a8492d12848e9cdf7752b834b.zip op-kernel-dev-84226ca1c5d34e6a8492d12848e9cdf7752b834b.tar.gz |
iwlwifi: mvm: support offload of AMSDU rate control
Support the new APIs and activate AMSDU based on the
offloaded TLC decisions.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/api/datapath.h | 5 | ||||
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/api/rs.h | 18 | ||||
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 8 | ||||
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c | 42 | ||||
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rs.c | 15 | ||||
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/rs.h | 5 | ||||
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/sta.h | 7 | ||||
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 11 |
8 files changed, 96 insertions, 15 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/datapath.h b/drivers/net/wireless/intel/iwlwifi/fw/api/datapath.h index a57c722..184cee9 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/datapath.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/datapath.h @@ -93,6 +93,11 @@ enum iwl_data_path_subcmd_ids { TLC_MNG_NOTIF_REQ_CMD = 0x10, /** + * @TLC_MNG_AMSDU_ENABLE_NOTIF: &struct iwl_tlc_amsdu_notif + */ + TLC_MNG_AMSDU_ENABLE_NOTIF = 0xF6, + + /** * @TLC_MNG_UPDATE_NOTIF: &struct iwl_tlc_update_notif */ TLC_MNG_UPDATE_NOTIF = 0xF7, diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h index e49a6f7..1a8f315 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h +++ b/drivers/net/wireless/intel/iwlwifi/fw/api/rs.h @@ -205,7 +205,7 @@ enum iwl_tlc_mng_ht_rates { * @non_ht_supp_rates: bitmap of supported legacy rates * @ht_supp_rates: bitmap of supported HT/VHT rates, valid bits are 0-9 * @mode: &enum iwl_tlc_mng_cfg_mode - * @reserved2: reserved + * @amsdu: TX amsdu is supported * @he_supp_rates: bitmap of supported HE rates * @sgi_ch_width_supp: bitmap of SGI support per channel width * @he_gi_support: 11ax HE guard interval @@ -222,13 +222,27 @@ struct iwl_tlc_config_cmd { __le16 non_ht_supp_rates; __le16 ht_supp_rates[MAX_RS_ANT_NUM]; u8 mode; - u8 reserved2; + u8 amsdu; __le16 he_supp_rates; u8 sgi_ch_width_supp; u8 he_gi_support; __le32 max_ampdu_cnt; } __packed; /* TLC_MNG_CONFIG_CMD_API_S_VER_1 */ +/** + * struct iwl_tlc_amsdu_notif - TLC AMSDU configuration + * @sta_id: station id + * @reserved: reserved + * @amsdu_size: Max AMSDU size, in bytes + * @amsdu_enabled: bitmap for per-TID AMSDU enablement + */ +struct iwl_tlc_amsdu_notif { + u8 sta_id; + u8 reserved[3]; + __le16 amsdu_size; + __le16 amsdu_enabled; +} __packed; /* TLC_MNG_AMSDU_ENABLE_NTFY_API_S_VER_1 */ + #define IWL_TLC_NOTIF_INIT_RATE_POS 0 #define IWL_TLC_NOTIF_INIT_RATE_MSK BIT(IWL_TLC_NOTIF_INIT_RATE_POS) #define IWL_TLC_NOTIF_REQ_INTERVAL (500) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index 6a3f557..1ef4ac2 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -250,6 +250,9 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC), RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC), + RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF, + iwl_mvm_tlc_update_notif, RX_HANDLER_SYNC), + RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, RX_HANDLER_ASYNC_LOCKED), RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, @@ -309,6 +312,8 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC), RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF, iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC), + RX_HANDLER_GRP(DATA_PATH_GROUP, TLC_MNG_AMSDU_ENABLE_NOTIF, + iwl_mvm_tlc_amsdu_notif, RX_HANDLER_SYNC), }; #undef RX_HANDLER #undef RX_HANDLER_GRP @@ -445,6 +450,7 @@ static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = { HCMD_NAME(DQA_ENABLE_CMD), HCMD_NAME(UPDATE_MU_GROUPS_CMD), HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD), + HCMD_NAME(TLC_MNG_AMSDU_ENABLE_NOTIF), HCMD_NAME(STA_PM_NOTIF), HCMD_NAME(MU_GROUP_MGMT_NOTIF), HCMD_NAME(RX_QUEUES_NOTIFICATION), @@ -1034,8 +1040,6 @@ static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode, iwl_mvm_rx_queue_notif(mvm, rxb, 0); else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)) iwl_mvm_rx_frame_release(mvm, napi, rxb, 0); - else if (cmd == WIDE_ID(DATA_PATH_GROUP, TLC_MNG_UPDATE_NOTIF)) - iwl_mvm_tlc_update_notif(mvm, pkt); else iwl_mvm_rx_common(mvm, rxb, pkt); } diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c index fb57456..4e818bc 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs-fw.c @@ -228,8 +228,47 @@ static void rs_fw_tlc_mng_notif_req_config(struct iwl_mvm *mvm, u8 sta_id) IWL_ERR(mvm, "Failed to send TLC notif request (%d)\n", ret); } -void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) +void iwl_mvm_tlc_amsdu_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb) { + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_tlc_amsdu_notif *notif; + struct ieee80211_sta *sta; + struct iwl_mvm_sta *mvmsta; + u16 size; + + notif = (void *)pkt->data; + + if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) + return; + + rcu_read_lock(); + + sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]); + if (IS_ERR_OR_NULL(sta)) { + rcu_read_unlock(); + IWL_ERR(mvm, "Invalid sta id (%d) in FW TLC notification\n", + notif->sta_id); + return; + } + + mvmsta = iwl_mvm_sta_from_mac80211(sta); + + size = min(le16_to_cpu(notif->amsdu_size), sta->max_amsdu_len); + mvmsta->amsdu_enabled = le16_to_cpu(notif->amsdu_enabled); + mvmsta->max_amsdu_len = size; + + IWL_DEBUG_RATE(mvm, + "AMSDU notification. AMSDU size: %d, AMSDU selected size: %d, AMSDU TID bitmap 0x%X\n", + le16_to_cpu(notif->amsdu_size), size, + mvmsta->amsdu_enabled); + + rcu_read_unlock(); +}; + +void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_tlc_update_notif *notif; struct iwl_mvm_sta *mvmsta; struct iwl_lq_sta_rs_fw *lq_sta; @@ -273,6 +312,7 @@ void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, .max_supp_ss = sta->rx_nss, .max_ampdu_cnt = cpu_to_le32(mvmsta->max_agg_bufsize), .sgi_ch_width_supp = rs_fw_sgi_cw_support(sta), + .amsdu = iwl_mvm_is_csum_supported(mvm), }; int ret; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c index 5d776ec..af7bc3b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c @@ -1715,12 +1715,18 @@ static void rs_set_amsdu_len(struct iwl_mvm *mvm, struct ieee80211_sta *sta, { struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + /* + * In case TLC offload is not active amsdu_enabled is either 0xFFFF + * or 0, since there is no per-TID alg. + */ if ((!is_vht(&tbl->rate) && !is_ht(&tbl->rate)) || tbl->rate.index < IWL_RATE_MCS_5_INDEX || scale_action == RS_ACTION_DOWNSCALE) - mvmsta->tlc_amsdu = false; + mvmsta->amsdu_enabled = 0; else - mvmsta->tlc_amsdu = true; + mvmsta->amsdu_enabled = 0xFFFF; + + mvmsta->max_amsdu_len = sta->max_amsdu_len; } /* @@ -3134,7 +3140,8 @@ static void rs_drv_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, sband = hw->wiphy->bands[band]; lq_sta->lq.sta_id = mvmsta->sta_id; - mvmsta->tlc_amsdu = false; + mvmsta->amsdu_enabled = 0; + mvmsta->max_amsdu_len = sta->max_amsdu_len; for (j = 0; j < LQ_SIZE; j++) rs_rate_scale_clear_tbl_windows(mvm, &lq_sta->lq_info[j]); @@ -3744,7 +3751,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file, (rate->sgi) ? "SGI" : "NGI", (rate->ldpc) ? "LDPC" : "BCC", (lq_sta->is_agg) ? "AGG on" : "", - (mvmsta->tlc_amsdu) ? "AMSDU on" : ""); + (mvmsta->amsdu_enabled) ? "AMSDU on" : ""); } desc += scnprintf(buff + desc, bufsz - desc, "last tx rate=0x%X\n", lq_sta->last_rate_n_flags); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h index fb18cb8..736ac96 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.h @@ -454,5 +454,8 @@ void rs_fw_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, enum nl80211_band band); int rs_fw_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, bool enable); -void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt); +void iwl_mvm_tlc_update_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb); +void iwl_mvm_tlc_amsdu_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb); #endif /* __rs__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h index 5ffd6ad..60502c8 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h @@ -391,7 +391,9 @@ struct iwl_mvm_rxq_dup_data { * @tx_protection: reference counter for controlling the Tx protection. * @tt_tx_protection: is thermal throttling enable Tx protection? * @disable_tx: is tx to this STA disabled? - * @tlc_amsdu: true if A-MSDU is allowed + * @amsdu_enabled: bitmap of TX AMSDU allowed TIDs. + * In case TLC offload is not active it is either 0xFFFF or 0. + * @max_amsdu_len: max AMSDU length * @agg_tids: bitmap of tids whose status is operational aggregated (IWL_AGG_ON) * @sleep_tx_count: the number of frames that we told the firmware to let out * even when that station is asleep. This is useful in case the queue @@ -436,7 +438,8 @@ struct iwl_mvm_sta { bool tt_tx_protection; bool disable_tx; - bool tlc_amsdu; + u16 amsdu_enabled; + u16 max_amsdu_len; bool sleeping; bool associated; u8 agg_tids; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index f06a0ee..9038134 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -774,9 +774,9 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb, dbg_max_amsdu_len = READ_ONCE(mvm->max_amsdu_len); - if (!sta->max_amsdu_len || + if (!mvmsta->max_amsdu_len || !ieee80211_is_data_qos(hdr->frame_control) || - (!mvmsta->tlc_amsdu && !dbg_max_amsdu_len)) + (!mvmsta->amsdu_enabled && !dbg_max_amsdu_len)) return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb); /* @@ -803,7 +803,12 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb, !mvmsta->tid_data[tid].amsdu_in_ampdu_allowed) return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb); - max_amsdu_len = sta->max_amsdu_len; + if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(mvmsta->vif)) || + tid_to_mac80211_ac[tid] < IEEE80211_AC_BE || + !(mvmsta->amsdu_enabled & BIT(tid))) + return iwl_mvm_tx_tso_segment(skb, 1, netdev_flags, mpdus_skb); + + max_amsdu_len = mvmsta->max_amsdu_len; /* the Tx FIFO to which this A-MSDU will be routed */ txf = iwl_mvm_mac_ac_to_tx_fifo(mvm, tid_to_mac80211_ac[tid]); |