diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/wireless/wl12xx/acx.c | 66 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/acx.h | 82 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/cmd.h | 1 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/conf.h | 9 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/init.c | 37 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/main.c | 146 | ||||
| -rw-r--r-- | drivers/net/wireless/wl12xx/wl12xx.h | 6 |
7 files changed, 177 insertions, 170 deletions
diff --git a/drivers/net/wireless/wl12xx/acx.c b/drivers/net/wireless/wl12xx/acx.c index d783fce45613..ecbceb6f1ea9 100644 --- a/drivers/net/wireless/wl12xx/acx.c +++ b/drivers/net/wireless/wl12xx/acx.c @@ -1323,19 +1323,15 @@ int wl1271_acx_set_ht_capabilities(struct wl1271 *wl, goto out; } - /* Allow HT Operation ? */ if (allow_ht_operation) { - ht_capabilites = - WL1271_ACX_FW_CAP_HT_OPERATION; - if (ht_cap->cap & IEEE80211_HT_CAP_GRN_FLD) - ht_capabilites |= - WL1271_ACX_FW_CAP_GREENFIELD_FRAME_FORMAT; - if (ht_cap->cap & IEEE80211_HT_CAP_SGI_20) - ht_capabilites |= - WL1271_ACX_FW_CAP_SHORT_GI_FOR_20MHZ_PACKETS; - if (ht_cap->cap & IEEE80211_HT_CAP_LSIG_TXOP_PROT) - ht_capabilites |= - WL1271_ACX_FW_CAP_LSIG_TXOP_PROTECTION; + /* no need to translate capabilities - use the spec values */ + ht_capabilites = ht_cap->cap; + + /* + * this bit is not employed by the spec but only by FW to + * indicate peer HT support + */ + ht_capabilites |= WL12XX_HT_CAP_HT_OPERATION; /* get data from A-MPDU parameters field */ acx->ampdu_max_length = ht_cap->ampdu_factor; @@ -1392,14 +1388,12 @@ out: } /* Configure BA session initiator/receiver parameters setting in the FW. */ -int wl1271_acx_set_ba_session(struct wl1271 *wl, - enum ieee80211_back_parties direction, - u8 tid_index, u8 policy) +int wl12xx_acx_set_ba_initiator_policy(struct wl1271 *wl) { - struct wl1271_acx_ba_session_policy *acx; + struct wl1271_acx_ba_initiator_policy *acx; int ret; - wl1271_debug(DEBUG_ACX, "acx ba session setting"); + wl1271_debug(DEBUG_ACX, "acx ba initiator policy"); acx = kzalloc(sizeof(*acx), GFP_KERNEL); if (!acx) { @@ -1407,33 +1401,18 @@ int wl1271_acx_set_ba_session(struct wl1271 *wl, goto out; } - /* ANY role */ - acx->role_id = 0xff; - acx->tid = tid_index; - acx->enable = policy; - acx->ba_direction = direction; - - switch (direction) { - case WLAN_BACK_INITIATOR: - acx->win_size = wl->conf.ht.tx_ba_win_size; - acx->inactivity_timeout = wl->conf.ht.inactivity_timeout; - break; - case WLAN_BACK_RECIPIENT: - acx->win_size = RX_BA_WIN_SIZE; - acx->inactivity_timeout = 0; - break; - default: - wl1271_error("Incorrect acx command id=%x\n", direction); - ret = -EINVAL; - goto out; - } + /* set for the current role */ + acx->role_id = wl->role_id; + acx->tid_bitmap = wl->conf.ht.tx_ba_tid_bitmap; + acx->win_size = wl->conf.ht.tx_ba_win_size; + acx->inactivity_timeout = wl->conf.ht.inactivity_timeout; ret = wl1271_cmd_configure(wl, - ACX_BA_SESSION_POLICY_CFG, + ACX_BA_SESSION_INIT_POLICY, acx, sizeof(*acx)); if (ret < 0) { - wl1271_warning("acx ba session setting failed: %d", ret); + wl1271_warning("acx ba initiator policy failed: %d", ret); goto out; } @@ -1443,8 +1422,8 @@ out: } /* setup BA session receiver setting in the FW. */ -int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, u16 ssn, - bool enable) +int wl12xx_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, + u16 ssn, bool enable, u8 peer_hlid) { struct wl1271_acx_ba_receiver_setup *acx; int ret; @@ -1457,11 +1436,10 @@ int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, u16 ssn, goto out; } - /* Single link for now */ - acx->link_id = 1; + acx->hlid = peer_hlid; acx->tid = tid_index; acx->enable = enable; - acx->win_size = 0; + acx->win_size = wl->conf.ht.rx_ba_win_size; acx->ssn = ssn; ret = wl1271_cmd_configure(wl, ACX_BA_SESSION_RX_SETUP, acx, diff --git a/drivers/net/wireless/wl12xx/acx.h b/drivers/net/wireless/wl12xx/acx.h index 5b3fabde0afe..82c9271b4e84 100644 --- a/drivers/net/wireless/wl12xx/acx.h +++ b/drivers/net/wireless/wl12xx/acx.h @@ -899,6 +899,10 @@ struct wl1271_acx_rssi_snr_avg_weights { u8 snr_data; }; + +/* special capability bit (not employed by the 802.11n spec) */ +#define WL12XX_HT_CAP_HT_OPERATION BIT(16) + /* * ACX_PEER_HT_CAP * Configure HT capabilities - declare the capabilities of the peer @@ -907,19 +911,7 @@ struct wl1271_acx_rssi_snr_avg_weights { struct wl1271_acx_ht_capabilities { struct acx_header header; - /* - * bit 0 - Allow HT Operation - * bit 1 - Allow Greenfield format in TX - * bit 2 - Allow Short GI in TX - * bit 3 - Allow L-SIG TXOP Protection in TX - * bit 4 - Allow HT Control fields in TX. - * Note, driver will still leave space for HT control in packets - * regardless of the value of this field. FW will be responsible - * to drop the HT field from any frame when this Bit set to 0. - * bit 5 - Allow RD initiation in TXOP. FW is allowed to initate RD. - * Exact policy setting for this feature is TBD. - * Note, this bit can only be set to 1 if bit 3 is set to 1. - */ + /* bitmask of capability bits supported by the peer */ __le32 ht_capabilites; /* Indicates to which link these capabilities apply. */ @@ -937,15 +929,6 @@ struct wl1271_acx_ht_capabilities { u8 padding; } __packed; -/* HT Capabilites Fw Bit Mask Mapping */ -#define WL1271_ACX_FW_CAP_HT_OPERATION BIT(0) -#define WL1271_ACX_FW_CAP_GREENFIELD_FRAME_FORMAT BIT(1) -#define WL1271_ACX_FW_CAP_SHORT_GI_FOR_20MHZ_PACKETS BIT(2) -#define WL1271_ACX_FW_CAP_LSIG_TXOP_PROTECTION BIT(3) -#define WL1271_ACX_FW_CAP_HT_CONTROL_FIELDS BIT(4) -#define WL1271_ACX_FW_CAP_RD_INITIATION BIT(5) - - /* * ACX_HT_BSS_OPERATION * Configure HT capabilities - AP rules for behavior in the BSS. @@ -979,57 +962,48 @@ struct wl1271_acx_ht_information { u8 padding[2]; } __packed; -#define RX_BA_WIN_SIZE 8 +#define RX_BA_MAX_SESSIONS 2 -struct wl1271_acx_ba_session_policy { +struct wl1271_acx_ba_initiator_policy { struct acx_header header; - /* - * Specifies role Id, Range 0-7, 0xFF means ANY role. - * Future use. For now this field is irrelevant - */ + + /* Specifies role Id, Range 0-7, 0xFF means ANY role. */ u8 role_id; + /* - * Specifies Link Id, Range 0-31, 0xFF means ANY Link Id. - * Not applicable if Role Id is set to ANY. + * Per TID setting for allowing TX BA. Set a bit to 1 to allow + * TX BA sessions for the corresponding TID. */ - u8 link_id; - - u8 tid; - - u8 enable; + u8 tid_bitmap; /* Windows size in number of packets */ - u16 win_size; + u8 win_size; - /* - * As initiator inactivity timeout in time units(TU) of 1024us. - * As receiver reserved - */ - u16 inactivity_timeout; + u8 padding1[1]; - /* Initiator = 1/Receiver = 0 */ - u8 ba_direction; + /* As initiator inactivity timeout in time units(TU) of 1024us */ + u16 inactivity_timeout; - u8 padding[3]; + u8 padding[2]; } __packed; struct wl1271_acx_ba_receiver_setup { struct acx_header header; - /* Specifies Link Id, Range 0-31, 0xFF means ANY Link Id */ - u8 link_id; + /* Specifies link id, range 0-31 */ + u8 hlid; u8 tid; u8 enable; - u8 padding[1]; - /* Windows size in number of packets */ - u16 win_size; + u8 win_size; /* BA session starting sequence number. RANGE 0-FFF */ u16 ssn; + + u8 padding[2]; } __packed; struct wl1271_acx_fw_tsf_information { @@ -1218,7 +1192,7 @@ enum { ACX_RSSI_SNR_WEIGHTS = 0x0052, ACX_KEEP_ALIVE_MODE = 0x0053, ACX_SET_KEEP_ALIVE_CONFIG = 0x0054, - ACX_BA_SESSION_POLICY_CFG = 0x0055, + ACX_BA_SESSION_INIT_POLICY = 0x0055, ACX_BA_SESSION_RX_SETUP = 0x0056, ACX_PEER_HT_CAP = 0x0057, ACX_HT_BSS_OPERATION = 0x0058, @@ -1297,11 +1271,9 @@ int wl1271_acx_set_ht_capabilities(struct wl1271 *wl, bool allow_ht_operation); int wl1271_acx_set_ht_information(struct wl1271 *wl, u16 ht_operation_mode); -int wl1271_acx_set_ba_session(struct wl1271 *wl, - enum ieee80211_back_parties direction, - u8 tid_index, u8 policy); -int wl1271_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, u16 ssn, - bool enable); +int wl12xx_acx_set_ba_initiator_policy(struct wl1271 *wl); +int wl12xx_acx_set_ba_receiver_session(struct wl1271 *wl, u8 tid_index, + u16 ssn, bool enable, u8 peer_hlid); int wl1271_acx_tsf_info(struct wl1271 *wl, u64 *mactime); int wl1271_acx_ps_rx_streaming(struct wl1271 *wl, bool enable); int wl1271_acx_ap_max_tx_retry(struct wl1271 *wl); diff --git a/drivers/net/wireless/wl12xx/cmd.h b/drivers/net/wireless/wl12xx/cmd.h index 5cf92e256641..8b32a57e1cc6 100644 --- a/drivers/net/wireless/wl12xx/cmd.h +++ b/drivers/net/wireless/wl12xx/cmd.h @@ -208,6 +208,7 @@ enum { CMD_STATUS_TIMEOUT = 21, /* Driver internal use.*/ CMD_STATUS_FW_RESET = 22, /* Driver internal use.*/ CMD_STATUS_TEMPLATE_OOM = 23, + CMD_STATUS_NO_RX_BA_SESSION = 24, MAX_COMMAND_STATUS = 0xff }; diff --git a/drivers/net/wireless/wl12xx/conf.h b/drivers/net/wireless/wl12xx/conf.h index a7c147838ab8..76b5c6233da4 100644 --- a/drivers/net/wireless/wl12xx/conf.h +++ b/drivers/net/wireless/wl12xx/conf.h @@ -557,6 +557,9 @@ struct conf_tx_ac_category { #define CONF_TX_MAX_TID_COUNT 8 +/* Allow TX BA on all TIDs but 6,7. These are currently reserved in the FW */ +#define CONF_TX_BA_ENABLED_TID_BITMAP 0x3F + enum { CONF_CHANNEL_TYPE_DCF = 0, /* DC/LEGACY*/ CONF_CHANNEL_TYPE_EDCF = 1, /* EDCA*/ @@ -1095,8 +1098,12 @@ struct conf_rf_settings { }; struct conf_ht_setting { - u16 tx_ba_win_size; + u8 rx_ba_win_size; + u8 tx_ba_win_size; u16 inactivity_timeout; + + /* bitmap of enabled TIDs for TX BA sessions */ + u8 tx_ba_tid_bitmap; }; struct conf_memory_settings { diff --git a/drivers/net/wireless/wl12xx/init.c b/drivers/net/wireless/wl12xx/init.c index 47d87aaa63a7..a374c2112be3 100644 --- a/drivers/net/wireless/wl12xx/init.c +++ b/drivers/net/wireless/wl12xx/init.c @@ -529,41 +529,24 @@ int wl1271_init_ap_rates(struct wl1271 *wl) return 0; } -static void wl1271_check_ba_support(struct wl1271 *wl) -{ - /* validate FW cose ver x.x.x.50-60.x */ - if ((wl->chip.fw_ver[3] >= WL12XX_BA_SUPPORT_FW_COST_VER2_START) && - (wl->chip.fw_ver[3] < WL12XX_BA_SUPPORT_FW_COST_VER2_END)) { - wl->ba_support = true; - return; - } - - wl->ba_support = false; -} - static int wl1271_set_ba_policies(struct wl1271 *wl) { - u8 tid_index; - int ret = 0; - /* Reset the BA RX indicators */ wl->ba_rx_bitmap = 0; wl->ba_allowed = true; + wl->ba_rx_session_count = 0; - /* validate that FW support BA */ - wl1271_check_ba_support(wl); + /* BA is supported in STA/AP modes */ + if (wl->bss_type != BSS_TYPE_AP_BSS && + wl->bss_type != BSS_TYPE_STA_BSS) { + wl->ba_support = false; + return 0; + } - if (wl->ba_support) - /* 802.11n initiator BA session setting */ - for (tid_index = 0; tid_index < CONF_TX_MAX_TID_COUNT; - ++tid_index) { - ret = wl1271_acx_set_ba_session(wl, WLAN_BACK_INITIATOR, - tid_index, true); - if (ret < 0) - break; - } + wl->ba_support = true; - return ret; + /* 802.11n initiator BA session setting */ + return wl12xx_acx_set_ba_initiator_policy(wl); } int wl1271_chip_specific_init(struct wl1271 *wl) diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index ea150b5ff9f5..934f5731fd73 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -286,8 +286,10 @@ static struct conf_drv_settings default_conf = { }, }, .ht = { + .rx_ba_win_size = 8, .tx_ba_win_size = 64, .inactivity_timeout = 10000, + .tx_ba_tid_bitmap = CONF_TX_BA_ENABLED_TID_BITMAP, }, .mem_wl127x = { .num_stations = 1, @@ -3191,9 +3193,12 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl, } } - rcu_read_lock(); - sta = ieee80211_find_sta(vif, bss_conf->bssid); - if (sta) { + if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_HT)) { + rcu_read_lock(); + sta = ieee80211_find_sta(vif, bss_conf->bssid); + if (!sta) + goto sta_not_found; + /* save the supp_rates of the ap */ sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band]; if (sta->ht_cap.ht_supported) @@ -3201,38 +3206,9 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl, (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET); sta_ht_cap = sta->ht_cap; sta_exists = true; - } - rcu_read_unlock(); - if (sta_exists) { - /* handle new association with HT and HT information change */ - if ((changed & BSS_CHANGED_HT) && - (bss_conf->channel_type != NL80211_CHAN_NO_HT)) { - ret = wl1271_acx_set_ht_capabilities(wl, &sta_ht_cap, - true); - if (ret < 0) { - wl1271_warning("Set ht cap true failed %d", - ret); - goto out; - } - ret = wl1271_acx_set_ht_information(wl, - bss_conf->ht_operation_mode); - if (ret < 0) { - wl1271_warning("Set ht information failed %d", - ret); - goto out; - } - } - /* handle new association without HT and disassociation */ - else if (changed & BSS_CHANGED_ASSOC) { - ret = wl1271_acx_set_ht_capabilities(wl, &sta_ht_cap, - false); - if (ret < 0) { - wl1271_warning("Set ht cap false failed %d", - ret); - goto out; - } - } +sta_not_found: + rcu_read_unlock(); } if ((changed & BSS_CHANGED_ASSOC)) { @@ -3440,6 +3416,41 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl, } } + /* Handle new association with HT. Do this only after join. */ + if (sta_exists) { + if ((changed & BSS_CHANGED_HT) && + (bss_conf->channel_type != NL80211_CHAN_NO_HT)) { + ret = wl1271_acx_set_ht_capabilities(wl, &sta_ht_cap, + true); + if (ret < 0) { + wl1271_warning("Set ht cap true failed %d", + ret); + goto out; + } + } + /* handle new association without HT and disassociation */ + else if (changed & BSS_CHANGED_ASSOC) { + ret = wl1271_acx_set_ht_capabilities(wl, &sta_ht_cap, + false); + if (ret < 0) { + wl1271_warning("Set ht cap false failed %d", + ret); + goto out; + } + } + } + + /* Handle HT information change. Only after join. */ + if (sta_exists && (changed & BSS_CHANGED_HT) && + (bss_conf->channel_type != NL80211_CHAN_NO_HT)) { + ret = wl1271_acx_set_ht_information(wl, + bss_conf->ht_operation_mode); + if (ret < 0) { + wl1271_warning("Set ht information failed %d", ret); + goto out; + } + } + out: return; } @@ -3623,6 +3634,7 @@ static void wl1271_free_sta(struct wl1271 *wl, u8 hlid) __clear_bit(id, wl->ap_hlid_map); memset(wl->links[hlid].addr, 0, ETH_ALEN); + wl->links[hlid].ba_bitmap = 0; wl1271_tx_reset_link_queues(wl, hlid); __clear_bit(hlid, &wl->ap_ps_map); __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map); @@ -3725,6 +3737,14 @@ static int wl1271_op_ampdu_action(struct ieee80211_hw *hw, { struct wl1271 *wl = hw->priv; int ret; + u8 hlid, *ba_bitmap; + + wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action, + tid); + + /* sanity check - the fields in FW are only 8bits wide */ + if (WARN_ON(tid > 0xFF)) + return -ENOTSUPP; mutex_lock(&wl->mutex); @@ -3733,6 +3753,20 @@ static int wl1271_op_ampdu_action(struct ieee80211_hw *hw, goto out; } + if (wl->bss_type == BSS_TYPE_STA_BSS) { + hlid = wl->sta_hlid; + ba_bitmap = &wl->ba_rx_bitmap; + } else if (wl->bss_type == BSS_TYPE_AP_BSS) { + struct wl1271_station *wl_sta; + + wl_sta = (struct wl1271_station *)sta->drv_priv; + hlid = wl_sta->hlid; + ba_bitmap = &wl->links[hlid].ba_bitmap; + } else { + ret = -EINVAL; + goto out; + } + ret = wl1271_ps_elp_wakeup(wl); if (ret < 0) goto out; @@ -3742,20 +3776,46 @@ static int wl1271_op_ampdu_action(struct ieee80211_hw *hw, switch (action) { case IEEE80211_AMPDU_RX_START: - if ((wl->ba_support) && (wl->ba_allowed)) { - ret = wl1271_acx_set_ba_receiver_session(wl, tid, *ssn, - true); - if (!ret) - wl->ba_rx_bitmap |= BIT(tid); - } else { + if (!wl->ba_support || !wl->ba_allowed) { ret = -ENOTSUPP; + break; + } + + if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) { + ret = -EBUSY; + wl1271_error("exceeded max RX BA sessions"); + break; + } + + if (*ba_bitmap & BIT(tid)) { + ret = -EINVAL; + wl1271_error("cannot enable RX BA session on active " + "tid: %d", tid); + break; + } + + ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true, + hlid); + if (!ret) { + *ba_bitmap |= BIT(tid); + wl->ba_rx_session_count++; } break; case IEEE80211_AMPDU_RX_STOP: - ret = wl1271_acx_set_ba_receiver_session(wl, tid, 0, false); - if (!ret) - wl->ba_rx_bitmap &= ~BIT(tid); + if (!(*ba_bitmap & BIT(tid))) { + ret = -EINVAL; + wl1271_error("no active RX BA session on tid: %d", + tid); + break; + } + + ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false, + hlid); + if (!ret) { + *ba_bitmap &= ~BIT(tid); + wl->ba_rx_session_count--; + } break; /* diff --git a/drivers/net/wireless/wl12xx/wl12xx.h b/drivers/net/wireless/wl12xx/wl12xx.h index 1313dc5b855e..487c3c7e0273 100644 --- a/drivers/net/wireless/wl12xx/wl12xx.h +++ b/drivers/net/wireless/wl12xx/wl12xx.h @@ -355,6 +355,9 @@ struct wl1271_link { u8 prev_freed_blks; u8 addr[ETH_ALEN]; + + /* bitmap of TIDs where RX BA sessions are active for this link */ + u8 ba_bitmap; }; struct wl1271 { @@ -609,6 +612,9 @@ struct wl1271 { /* Platform limitations */ unsigned int platform_quirks; + + /* number of currently active RX BA sessions */ + int ba_rx_session_count; }; struct wl1271_station { |