X-Git-Url: https://jxself.org/git/?a=blobdiff_plain;f=carlfw%2Fsrc%2Fwlan.c;h=1909de1db86fe7819c22055107619245e9ee10bf;hb=03a8cf510dbef554b55403da7547607f7e326368;hp=0e0b1dd144b27c4254b0f8fbd0d53278e296c849;hpb=592643728e9b7c37c918afee05df8142c6d7303e;p=carl9170fw.git diff --git a/carlfw/src/wlan.c b/carlfw/src/wlan.c index 0e0b1dd..1909de1 100644 --- a/carlfw/src/wlan.c +++ b/carlfw/src/wlan.c @@ -156,8 +156,8 @@ static struct carl9170_tx_status *wlan_get_tx_status_buffer(void) } /* generate _aggregated_ tx_status for the host */ -static void wlan_tx_complete(struct carl9170_tx_superframe *super, - bool txs) +void wlan_tx_complete(struct carl9170_tx_superframe *super, + bool txs) { struct carl9170_tx_status *status; @@ -169,6 +169,7 @@ static void wlan_tx_complete(struct carl9170_tx_superframe *super, */ status->cookie = super->s.cookie; status->queue = super->s.queue; + super->s.cookie = 0; /* * This field holds the number of tries of the rate in @@ -307,9 +308,9 @@ static void __wlan_tx(struct dma_desc *desc) # endif #else /* CONFIG_CARL9170FW_LOOPBACK */ -# if ((defined CONFIG_CARL9170FW_DEBUG) && (defined CONFIG_CARL9170FW_PSM)) +# ifdef CONFIG_CARL9170FW_DEBUG BUG_ON(fw.phy.psm.state != CARL9170_PSM_WAKE); -# endif /* CONFIG_CARL9170FW_DEBUG && CONFIG_CARL9170FW_PSM */ +# endif /* CONFIG_CARL9170FW_DEBUG */ /* insert desc into the right queue */ dma_put(&fw.wlan.tx_queue[super->s.queue], desc); @@ -355,16 +356,14 @@ static void _wlan_tx(struct dma_desc *desc) static bool wlan_tx_status(struct dma_queue *queue, struct dma_desc *desc) { - struct ar9170_tx_frame *frame = DESC_PAYLOAD(desc); struct carl9170_tx_superframe *super = get_super(desc); - struct ieee80211_hdr *hdr = &super->f.data.i3e; unsigned int qidx = super->s.queue; - bool txfail, success; + bool txfail = false, success; success = true; /* update hangcheck */ - fw.wlan.last_tx_desc_num[qidx] = 0; + fw.wlan.last_super_num[qidx] = 0; if (!!(desc->ctrl & AR9170_CTRL_FAIL)) { txfail = !!(desc->ctrl & AR9170_CTRL_TXFAIL); @@ -380,7 +379,7 @@ static bool wlan_tx_status(struct dma_queue *queue, * order. */ - if (!frame->hdr.mac.ampdu) { + if (!super->f.hdr.mac.ampdu) { /* * 802.11 - 7.1.3.1.5. * set "Retry Field" for consecutive attempts @@ -388,8 +387,8 @@ static bool wlan_tx_status(struct dma_queue *queue, * Note: For AMPDU see: * 802.11n 9.9.1.6 "Retransmit Procedures" */ - - hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_RETRY); + super->f.data.i3e.frame_control |= + cpu_to_le16(IEEE80211_FCTL_RETRY); } if (txfail) { @@ -439,21 +438,22 @@ static bool wlan_tx_status(struct dma_queue *queue, unhide_super(desc); -#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ - if (unlikely(super == (void *) &dma_mem.reserved.ba)) { - fw.wlan.ba_desc = desc; - fw.wlan.ba_desc_available = 1; + if (unlikely(super == fw.wlan.fw_desc_data)) { + fw.wlan.fw_desc = desc; + fw.wlan.fw_desc_available = 1; + if (fw.wlan.fw_desc_callback) + fw.wlan.fw_desc_callback(super, success); + return true; } -#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */ - - wlan_tx_complete(super, success); #ifdef CONFIG_CARL9170FW_CAB_QUEUE if (unlikely(super->s.cab)) fw.wlan.cab_queue_len[super->s.vif_id]--; #endif /* CONFIG_CARL9170FW_CAB_QUEUE */ + wlan_tx_complete(super, success); + /* recycle freed descriptors */ dma_reclaim(&fw.pta.down_queue, desc); down_trigger(); @@ -463,10 +463,9 @@ static bool wlan_tx_status(struct dma_queue *queue, static void handle_tx_completion(void) { struct dma_desc *desc; - unsigned int map = 0; int i; - for (i = 0; i < __AR9170_NUM_TX_QUEUES; i++) { + for (i = AR9170_TXQ_SPECIAL; i >= AR9170_TXQ0; i--) { __while_desc_bits(desc, &fw.wlan.tx_queue[i], AR9170_OWN_BITS_SW) { if (!wlan_tx_status(&fw.wlan.tx_queue[i], desc)) { /* termination requested. */ @@ -479,10 +478,8 @@ static void handle_tx_completion(void) wlan_tx_ampdu_end(i); if (!queue_empty(&fw.wlan.tx_queue[i])) - map |= BIT(i); - + wlan_trigger(BIT(i)); } - wlan_trigger(map); } void __hot wlan_tx(struct dma_desc *desc) @@ -506,7 +503,24 @@ void __hot wlan_tx(struct dma_desc *desc) wlan_trigger(BIT(super->s.queue)); } -#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ +static void wlan_tx_fw(struct carl9170_tx_superdesc *super) +{ + if (!fw.wlan.fw_desc_available) + return; + + fw.wlan.fw_desc_available = 0; + + /* Format BlockAck */ + fw.wlan.fw_desc->status = AR9170_OWN_BITS_SW; + fw.wlan.fw_desc->ctrl = AR9170_CTRL_FS_BIT | AR9170_CTRL_LS_BIT; + fw.wlan.fw_desc->totalLen = fw.wlan.fw_desc->dataSize = super->len; + fw.wlan.fw_desc_data = fw.wlan.fw_desc->dataAddr = super; + fw.wlan.fw_desc->nextAddr = fw.wlan.fw_desc->lastAddr = + fw.wlan.fw_desc; + + wlan_tx(fw.wlan.fw_desc); +} + static void wlan_send_buffered_ba(void) { struct carl9170_tx_ba_superframe *baf = &dma_mem.reserved.ba.ba; @@ -517,26 +531,18 @@ static void wlan_send_buffered_ba(void) return; /* there's no point to continue when the ba_desc is not available. */ - if (!fw.wlan.ba_desc_available) + if (!fw.wlan.fw_desc_available) return; - ctx = &fw.wlan.ba_cache[fw.wlan.ba_head_idx % CONFIG_CARL9170FW_BACK_REQS_NUM]; + ctx = &fw.wlan.ba_cache[fw.wlan.ba_head_idx]; fw.wlan.ba_head_idx++; + fw.wlan.ba_head_idx %= CONFIG_CARL9170FW_BACK_REQS_NUM; - /* Format BlockAck */ - fw.wlan.ba_desc->status = 0; - fw.wlan.ba_desc->ctrl = AR9170_CTRL_FS_BIT | AR9170_CTRL_LS_BIT; - fw.wlan.ba_desc_available = 0; - fw.wlan.ba_desc->nextAddr = fw.wlan.ba_desc->lastAddr = - fw.wlan.ba_desc; - - baf->s.len = fw.wlan.ba_desc->totalLen = fw.wlan.ba_desc->dataSize = - sizeof(struct carl9170_tx_superdesc) + - sizeof(struct ar9170_tx_hwdesc) + - sizeof(struct ieee80211_ba); - - baf->s.ri[0].tries = 3; - baf->s.queue = 0; + baf->s.len = sizeof(struct carl9170_tx_superdesc) + + sizeof(struct ar9170_tx_hwdesc) + + sizeof(struct ieee80211_ba); + baf->s.ri[0].tries = 1; + baf->s.queue = AR9170_TXQ_VO; baf->f.hdr.length = sizeof(struct ieee80211_ba) + FCS_LEN; /* HW Duration / Backoff */ @@ -566,20 +572,16 @@ static void wlan_send_buffered_ba(void) */ ba->control = ctx->control | cpu_to_le16(1); ba->start_seq_num = ctx->start_seq_num; - - wlan_tx(fw.wlan.ba_desc); + wlan_tx_fw(&baf->s); } static struct carl9170_bar_ctx *wlan_get_bar_cache_buffer(void) { struct carl9170_bar_ctx *tmp; - /* expire oldest entry, if we ran out of ba_ctx' */ - if (fw.wlan.ba_head_idx + CONFIG_CARL9170FW_BACK_REQS_NUM < fw.wlan.ba_tail_idx) - fw.wlan.ba_head_idx++; - - tmp = &fw.wlan.ba_cache[fw.wlan.ba_tail_idx % CONFIG_CARL9170FW_BACK_REQS_NUM]; + tmp = &fw.wlan.ba_cache[fw.wlan.ba_tail_idx]; fw.wlan.ba_tail_idx++; + fw.wlan.ba_tail_idx %= CONFIG_CARL9170FW_BACK_REQS_NUM; return tmp; } @@ -635,7 +637,6 @@ static void handle_bar(struct dma_desc *desc, struct ieee80211_hdr *hdr, ctx->phy = cpu_to_le32(0x2cc301); } } -#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */ static void wlan_check_rx_overrun(void) { @@ -835,9 +836,7 @@ static unsigned int wlan_rx_filter(struct dma_desc *desc) } else if (ieee80211_is_ctl(hdr->frame_control)) { switch (le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_STYPE) { case IEEE80211_STYPE_BACK_REQ: -#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ handle_bar(desc, hdr, data_len, mac_err); -#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */ /* fallthrough */ rx_filter |= CARL9170_RX_FILTER_CTL_BACKR; break; @@ -985,14 +984,10 @@ static void handle_pretbtt(void) fw.wlan.cab_flush_time = get_clock_counter(); #endif /* CONFIG_CARL9170FW_CAB_QUEUE */ -#ifdef CONFIG_CARL9170FW_PSM rf_psm(); send_cmd_to_host(4, CARL9170_RSP_PRETBTT, 0x00, (uint8_t *) &fw.phy.psm.state); -#else - send_cmd_to_host(0, CARL9170_RSP_PRETBTT, 0x00, NULL); -#endif /* CONFIG_CARL9170FW_PSM */ } static void handle_atim(void) @@ -1051,9 +1046,7 @@ static void wlan_janitor(void) wlan_send_buffered_tx_status(); -#ifdef CONFIG_CARL9170FW_HANDLE_BACK_REQ wlan_send_buffered_ba(); -#endif /* CONFIG_CARL9170FW_HANDLE_BACK_REQ */ } void handle_wlan(void) @@ -1099,12 +1092,18 @@ void handle_wlan(void) #undef HANDLER } +enum { + CARL9170FW_TX_MAC_BUMP = 4, + CARL9170FW_TX_MAC_DEBUG = 6, + CARL9170FW_TX_MAC_RESET = 7, +}; + static void wlan_check_hang(void) { struct dma_desc *desc; - unsigned int i; + int i; - for (i = 0; i < __AR9170_NUM_TX_QUEUES; i++) { + for (i = AR9170_TXQ_SPECIAL; i >= AR9170_TXQ0; i--) { if (queue_empty(&fw.wlan.tx_queue[i])) { /* Nothing to do here... move along */ continue; @@ -1114,10 +1113,10 @@ static void wlan_check_hang(void) desc = get_wlan_txq_addr(i); /* Stuck frame detection */ - if (unlikely(desc == fw.wlan.last_tx_desc[i])) { - fw.wlan.last_tx_desc_num[i]++; + if (unlikely(DESC_PAYLOAD(desc) == fw.wlan.last_super[i])) { + fw.wlan.last_super_num[i]++; - if (unlikely(fw.wlan.last_tx_desc_num[i] > 6)) { + if (unlikely(fw.wlan.last_super_num[i] >= CARL9170FW_TX_MAC_RESET)) { /* * schedule MAC reset (aka OFF/ON => dead) * @@ -1130,7 +1129,7 @@ static void wlan_check_hang(void) } #ifdef CONFIG_CARL9170FW_DEBUG - if (unlikely(fw.wlan.last_tx_desc_num[i] > 5)) { + if (unlikely(fw.wlan.last_super_num[i] >= CARL9170FW_TX_MAC_DEBUG)) { /* * Sigh, the queue is almost certainly * dead. Dump the queue content to the @@ -1143,7 +1142,7 @@ static void wlan_check_hang(void) #endif /* CONFIG_CARL9170FW_DEBUG */ #ifdef CONFIG_CARL9170FW_DMA_QUEUE_BUMP - if (unlikely(fw.wlan.last_tx_desc_num[i] > 3)) { + if (unlikely(fw.wlan.last_super_num[i] >= CARL9170FW_TX_MAC_BUMP)) { /* * Hrrm, bump the queue a bit. * maybe this will get it going again. @@ -1155,8 +1154,8 @@ static void wlan_check_hang(void) #endif /* CONFIG_CARL9170FW_DMA_QUEUE_BUMP */ } else { /* Nothing stuck */ - fw.wlan.last_tx_desc[i] = desc; - fw.wlan.last_tx_desc_num[i] = 0; + fw.wlan.last_super[i] = DESC_PAYLOAD(desc); + fw.wlan.last_super_num[i] = 0; } } } @@ -1179,13 +1178,15 @@ static void wlan_mac_reset(void) uint32_t ack_power; uint32_t rts_cts_tpc; uint32_t rts_cts_rate; - unsigned int i; + int i; #ifdef CONFIG_CARL9170FW_RADIO_FUNCTIONS uint32_t rx_BB; #endif /* CONFIG_CARL9170FW_RADIO_FUNCTIONS */ +#ifdef CONFIG_CARL9170FW_NOISY_MAC_RESET INFO("MAC RESET"); +#endif /* CONFIG_CARL9170FW_NOISY_MAC_RESET */ /* Save aggregation parameters */ agg_wait_counter = get(AR9170_MAC_REG_AMPDU_FACTOR); @@ -1255,11 +1256,34 @@ static void wlan_mac_reset(void) val = AR9170_DMA_TRIGGER_RXQ; /* Reinitialize all WLAN TX DMA queues. */ - for (i = 0; i < __AR9170_NUM_TX_QUEUES; i++) { + for (i = AR9170_TXQ_SPECIAL; i >= AR9170_TXQ0; i--) { struct dma_desc *iter; __for_each_desc_bits(iter, &fw.wlan.tx_queue[i], AR9170_OWN_BITS_SW); + /* kill the stuck frame */ + if (!is_terminator(&fw.wlan.tx_queue[i], iter) && + fw.wlan.last_super_num[i] >= CARL9170FW_TX_MAC_RESET && + fw.wlan.last_super[i] == DESC_PAYLOAD(iter)) { + struct carl9170_tx_superframe *super = get_super(iter); + + iter->status = AR9170_OWN_BITS_SW; + /* + * Mark the frame as failed. + * The BAFAIL flag allows the frame to sail through + * wlan_tx_status without much "unstuck" trouble. + */ + iter->ctrl &= ~(AR9170_CTRL_FAIL); + iter->ctrl |= AR9170_CTRL_BAFAIL; + + super->s.cnt = CARL9170_TX_MAX_RATE_TRIES; + super->s.rix = CARL9170_TX_MAX_RETRY_RATES; + + fw.wlan.last_super_num[i] = 0; + fw.wlan.last_super[i] = NULL; + iter = iter->lastAddr->nextAddr; + } + set_wlan_txq_dma_addr(i, (uint32_t) iter); if (!is_terminator(&fw.wlan.tx_queue[i], iter)) val |= BIT(i);