1f0553ca9SKalle Valo // SPDX-License-Identifier: ISC 25e3dd157SKalle Valo /* 35e3dd157SKalle Valo * Copyright (c) 2005-2011 Atheros Communications Inc. 48b1083d6SKalle Valo * Copyright (c) 2011-2017 Qualcomm Atheros, Inc. 5caee728aSVasanthakumar Thiagarajan * Copyright (c) 2018, The Linux Foundation. All rights reserved. 65e3dd157SKalle Valo */ 75e3dd157SKalle Valo 8edb8236dSMichal Kazior #include "core.h" 95e3dd157SKalle Valo #include "htc.h" 105e3dd157SKalle Valo #include "htt.h" 115e3dd157SKalle Valo #include "txrx.h" 125e3dd157SKalle Valo #include "debug.h" 13a9bf0506SKalle Valo #include "trace.h" 14aa5b4fbcSMichal Kazior #include "mac.h" 155e3dd157SKalle Valo 165e3dd157SKalle Valo #include <linux/log2.h> 17235b9c42SVenkateswara Naralasetty #include <linux/bitfield.h> 185e3dd157SKalle Valo 195e3dd157SKalle Valo /* when under memory pressure rx ring refill may fail and needs a retry */ 205e3dd157SKalle Valo #define HTT_RX_RING_REFILL_RETRY_MS 50 215e3dd157SKalle Valo 225c86d97bSRajkumar Manoharan #define HTT_RX_RING_REFILL_RESCHED_MS 5 235c86d97bSRajkumar Manoharan 24f6dc2095SMichal Kazior static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb); 25f6dc2095SMichal Kazior 26c545070eSMichal Kazior static struct sk_buff * 27a91a626bSGovind Singh ath10k_htt_rx_find_skb_paddr(struct ath10k *ar, u64 paddr) 28c545070eSMichal Kazior { 29c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb; 30c545070eSMichal Kazior 31c545070eSMichal Kazior hash_for_each_possible(ar->htt.rx_ring.skb_table, rxcb, hlist, paddr) 32c545070eSMichal Kazior if (rxcb->paddr == paddr) 33c545070eSMichal Kazior return ATH10K_RXCB_SKB(rxcb); 34c545070eSMichal Kazior 35c545070eSMichal Kazior WARN_ON_ONCE(1); 36c545070eSMichal Kazior return NULL; 37c545070eSMichal Kazior } 38c545070eSMichal Kazior 395e3dd157SKalle Valo static void ath10k_htt_rx_ring_free(struct ath10k_htt *htt) 405e3dd157SKalle Valo { 415e3dd157SKalle Valo struct sk_buff *skb; 42c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb; 43c545070eSMichal Kazior struct hlist_node *n; 445e3dd157SKalle Valo int i; 455e3dd157SKalle Valo 46c545070eSMichal Kazior if (htt->rx_ring.in_ord_rx) { 47c545070eSMichal Kazior hash_for_each_safe(htt->rx_ring.skb_table, i, n, rxcb, hlist) { 48c545070eSMichal Kazior skb = ATH10K_RXCB_SKB(rxcb); 49c545070eSMichal Kazior dma_unmap_single(htt->ar->dev, rxcb->paddr, 50c545070eSMichal Kazior skb->len + skb_tailroom(skb), 51c545070eSMichal Kazior DMA_FROM_DEVICE); 52c545070eSMichal Kazior hash_del(&rxcb->hlist); 53c545070eSMichal Kazior dev_kfree_skb_any(skb); 54c545070eSMichal Kazior } 55c545070eSMichal Kazior } else { 56c545070eSMichal Kazior for (i = 0; i < htt->rx_ring.size; i++) { 575e3dd157SKalle Valo skb = htt->rx_ring.netbufs_ring[i]; 58c545070eSMichal Kazior if (!skb) 59c545070eSMichal Kazior continue; 60c545070eSMichal Kazior 61c545070eSMichal Kazior rxcb = ATH10K_SKB_RXCB(skb); 62c545070eSMichal Kazior dma_unmap_single(htt->ar->dev, rxcb->paddr, 635e3dd157SKalle Valo skb->len + skb_tailroom(skb), 645e3dd157SKalle Valo DMA_FROM_DEVICE); 655e3dd157SKalle Valo dev_kfree_skb_any(skb); 665e3dd157SKalle Valo } 67c545070eSMichal Kazior } 685e3dd157SKalle Valo 695e3dd157SKalle Valo htt->rx_ring.fill_cnt = 0; 70c545070eSMichal Kazior hash_init(htt->rx_ring.skb_table); 71c545070eSMichal Kazior memset(htt->rx_ring.netbufs_ring, 0, 72c545070eSMichal Kazior htt->rx_ring.size * sizeof(htt->rx_ring.netbufs_ring[0])); 735e3dd157SKalle Valo } 745e3dd157SKalle Valo 75a91a626bSGovind Singh static size_t ath10k_htt_get_rx_ring_size_32(struct ath10k_htt *htt) 76a91a626bSGovind Singh { 77a91a626bSGovind Singh return htt->rx_ring.size * sizeof(htt->rx_ring.paddrs_ring_32); 78a91a626bSGovind Singh } 79a91a626bSGovind Singh 80a91a626bSGovind Singh static size_t ath10k_htt_get_rx_ring_size_64(struct ath10k_htt *htt) 81a91a626bSGovind Singh { 82a91a626bSGovind Singh return htt->rx_ring.size * sizeof(htt->rx_ring.paddrs_ring_64); 83a91a626bSGovind Singh } 84a91a626bSGovind Singh 85a91a626bSGovind Singh static void ath10k_htt_config_paddrs_ring_32(struct ath10k_htt *htt, 86a91a626bSGovind Singh void *vaddr) 87a91a626bSGovind Singh { 88a91a626bSGovind Singh htt->rx_ring.paddrs_ring_32 = vaddr; 89a91a626bSGovind Singh } 90a91a626bSGovind Singh 91a91a626bSGovind Singh static void ath10k_htt_config_paddrs_ring_64(struct ath10k_htt *htt, 92a91a626bSGovind Singh void *vaddr) 93a91a626bSGovind Singh { 94a91a626bSGovind Singh htt->rx_ring.paddrs_ring_64 = vaddr; 95a91a626bSGovind Singh } 96a91a626bSGovind Singh 97a91a626bSGovind Singh static void ath10k_htt_set_paddrs_ring_32(struct ath10k_htt *htt, 98a91a626bSGovind Singh dma_addr_t paddr, int idx) 99a91a626bSGovind Singh { 100a91a626bSGovind Singh htt->rx_ring.paddrs_ring_32[idx] = __cpu_to_le32(paddr); 101a91a626bSGovind Singh } 102a91a626bSGovind Singh 103a91a626bSGovind Singh static void ath10k_htt_set_paddrs_ring_64(struct ath10k_htt *htt, 104a91a626bSGovind Singh dma_addr_t paddr, int idx) 105a91a626bSGovind Singh { 106a91a626bSGovind Singh htt->rx_ring.paddrs_ring_64[idx] = __cpu_to_le64(paddr); 107a91a626bSGovind Singh } 108a91a626bSGovind Singh 109a91a626bSGovind Singh static void ath10k_htt_reset_paddrs_ring_32(struct ath10k_htt *htt, int idx) 110a91a626bSGovind Singh { 111a91a626bSGovind Singh htt->rx_ring.paddrs_ring_32[idx] = 0; 112a91a626bSGovind Singh } 113a91a626bSGovind Singh 114a91a626bSGovind Singh static void ath10k_htt_reset_paddrs_ring_64(struct ath10k_htt *htt, int idx) 115a91a626bSGovind Singh { 116a91a626bSGovind Singh htt->rx_ring.paddrs_ring_64[idx] = 0; 117a91a626bSGovind Singh } 118a91a626bSGovind Singh 119a91a626bSGovind Singh static void *ath10k_htt_get_vaddr_ring_32(struct ath10k_htt *htt) 120a91a626bSGovind Singh { 121a91a626bSGovind Singh return (void *)htt->rx_ring.paddrs_ring_32; 122a91a626bSGovind Singh } 123a91a626bSGovind Singh 124a91a626bSGovind Singh static void *ath10k_htt_get_vaddr_ring_64(struct ath10k_htt *htt) 125a91a626bSGovind Singh { 126a91a626bSGovind Singh return (void *)htt->rx_ring.paddrs_ring_64; 127a91a626bSGovind Singh } 128a91a626bSGovind Singh 1295e3dd157SKalle Valo static int __ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num) 1305e3dd157SKalle Valo { 1315e3dd157SKalle Valo struct htt_rx_desc *rx_desc; 132c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb; 1335e3dd157SKalle Valo struct sk_buff *skb; 1345e3dd157SKalle Valo dma_addr_t paddr; 1355e3dd157SKalle Valo int ret = 0, idx; 1365e3dd157SKalle Valo 137c545070eSMichal Kazior /* The Full Rx Reorder firmware has no way of telling the host 138c545070eSMichal Kazior * implicitly when it copied HTT Rx Ring buffers to MAC Rx Ring. 139c545070eSMichal Kazior * To keep things simple make sure ring is always half empty. This 140c545070eSMichal Kazior * guarantees there'll be no replenishment overruns possible. 141c545070eSMichal Kazior */ 142c545070eSMichal Kazior BUILD_BUG_ON(HTT_RX_RING_FILL_LEVEL >= HTT_RX_RING_SIZE / 2); 143c545070eSMichal Kazior 1448cc7f26cSKalle Valo idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr); 1455e3dd157SKalle Valo while (num > 0) { 1465e3dd157SKalle Valo skb = dev_alloc_skb(HTT_RX_BUF_SIZE + HTT_RX_DESC_ALIGN); 1475e3dd157SKalle Valo if (!skb) { 1485e3dd157SKalle Valo ret = -ENOMEM; 1495e3dd157SKalle Valo goto fail; 1505e3dd157SKalle Valo } 1515e3dd157SKalle Valo 1525e3dd157SKalle Valo if (!IS_ALIGNED((unsigned long)skb->data, HTT_RX_DESC_ALIGN)) 1535e3dd157SKalle Valo skb_pull(skb, 1545e3dd157SKalle Valo PTR_ALIGN(skb->data, HTT_RX_DESC_ALIGN) - 1555e3dd157SKalle Valo skb->data); 1565e3dd157SKalle Valo 1575e3dd157SKalle Valo /* Clear rx_desc attention word before posting to Rx ring */ 1585e3dd157SKalle Valo rx_desc = (struct htt_rx_desc *)skb->data; 1595e3dd157SKalle Valo rx_desc->attention.flags = __cpu_to_le32(0); 1605e3dd157SKalle Valo 1615e3dd157SKalle Valo paddr = dma_map_single(htt->ar->dev, skb->data, 1625e3dd157SKalle Valo skb->len + skb_tailroom(skb), 1635e3dd157SKalle Valo DMA_FROM_DEVICE); 1645e3dd157SKalle Valo 1655e3dd157SKalle Valo if (unlikely(dma_mapping_error(htt->ar->dev, paddr))) { 1665e3dd157SKalle Valo dev_kfree_skb_any(skb); 1675e3dd157SKalle Valo ret = -ENOMEM; 1685e3dd157SKalle Valo goto fail; 1695e3dd157SKalle Valo } 1705e3dd157SKalle Valo 171c545070eSMichal Kazior rxcb = ATH10K_SKB_RXCB(skb); 172c545070eSMichal Kazior rxcb->paddr = paddr; 1735e3dd157SKalle Valo htt->rx_ring.netbufs_ring[idx] = skb; 1749a5511d5SErik Stromdahl ath10k_htt_set_paddrs_ring(htt, paddr, idx); 1755e3dd157SKalle Valo htt->rx_ring.fill_cnt++; 1765e3dd157SKalle Valo 177c545070eSMichal Kazior if (htt->rx_ring.in_ord_rx) { 178c545070eSMichal Kazior hash_add(htt->rx_ring.skb_table, 179c545070eSMichal Kazior &ATH10K_SKB_RXCB(skb)->hlist, 180a91a626bSGovind Singh paddr); 181c545070eSMichal Kazior } 182c545070eSMichal Kazior 1835e3dd157SKalle Valo num--; 1845e3dd157SKalle Valo idx++; 1855e3dd157SKalle Valo idx &= htt->rx_ring.size_mask; 1865e3dd157SKalle Valo } 1875e3dd157SKalle Valo 1885e3dd157SKalle Valo fail: 1895de6dfc8SVasanthakumar Thiagarajan /* 1905de6dfc8SVasanthakumar Thiagarajan * Make sure the rx buffer is updated before available buffer 1915de6dfc8SVasanthakumar Thiagarajan * index to avoid any potential rx ring corruption. 1925de6dfc8SVasanthakumar Thiagarajan */ 1935de6dfc8SVasanthakumar Thiagarajan mb(); 1948cc7f26cSKalle Valo *htt->rx_ring.alloc_idx.vaddr = __cpu_to_le32(idx); 1955e3dd157SKalle Valo return ret; 1965e3dd157SKalle Valo } 1975e3dd157SKalle Valo 1985e3dd157SKalle Valo static int ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num) 1995e3dd157SKalle Valo { 2005e3dd157SKalle Valo lockdep_assert_held(&htt->rx_ring.lock); 2015e3dd157SKalle Valo return __ath10k_htt_rx_ring_fill_n(htt, num); 2025e3dd157SKalle Valo } 2035e3dd157SKalle Valo 2045e3dd157SKalle Valo static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt) 2055e3dd157SKalle Valo { 2066e712d42SMichal Kazior int ret, num_deficit, num_to_fill; 2075e3dd157SKalle Valo 2086e712d42SMichal Kazior /* Refilling the whole RX ring buffer proves to be a bad idea. The 2096e712d42SMichal Kazior * reason is RX may take up significant amount of CPU cycles and starve 2106e712d42SMichal Kazior * other tasks, e.g. TX on an ethernet device while acting as a bridge 2116e712d42SMichal Kazior * with ath10k wlan interface. This ended up with very poor performance 2126e712d42SMichal Kazior * once CPU the host system was overwhelmed with RX on ath10k. 2136e712d42SMichal Kazior * 2146e712d42SMichal Kazior * By limiting the number of refills the replenishing occurs 2156e712d42SMichal Kazior * progressively. This in turns makes use of the fact tasklets are 2166e712d42SMichal Kazior * processed in FIFO order. This means actual RX processing can starve 2176e712d42SMichal Kazior * out refilling. If there's not enough buffers on RX ring FW will not 2186e712d42SMichal Kazior * report RX until it is refilled with enough buffers. This 2196e712d42SMichal Kazior * automatically balances load wrt to CPU power. 2206e712d42SMichal Kazior * 2216e712d42SMichal Kazior * This probably comes at a cost of lower maximum throughput but 222d6dfe25cSMarcin Rokicki * improves the average and stability. 223d6dfe25cSMarcin Rokicki */ 2245e3dd157SKalle Valo spin_lock_bh(&htt->rx_ring.lock); 2256e712d42SMichal Kazior num_deficit = htt->rx_ring.fill_level - htt->rx_ring.fill_cnt; 2266e712d42SMichal Kazior num_to_fill = min(ATH10K_HTT_MAX_NUM_REFILL, num_deficit); 2276e712d42SMichal Kazior num_deficit -= num_to_fill; 2285e3dd157SKalle Valo ret = ath10k_htt_rx_ring_fill_n(htt, num_to_fill); 2295e3dd157SKalle Valo if (ret == -ENOMEM) { 2305e3dd157SKalle Valo /* 2315e3dd157SKalle Valo * Failed to fill it to the desired level - 2325e3dd157SKalle Valo * we'll start a timer and try again next time. 2335e3dd157SKalle Valo * As long as enough buffers are left in the ring for 2345e3dd157SKalle Valo * another A-MPDU rx, no special recovery is needed. 2355e3dd157SKalle Valo */ 2365e3dd157SKalle Valo mod_timer(&htt->rx_ring.refill_retry_timer, jiffies + 2375e3dd157SKalle Valo msecs_to_jiffies(HTT_RX_RING_REFILL_RETRY_MS)); 2386e712d42SMichal Kazior } else if (num_deficit > 0) { 2395c86d97bSRajkumar Manoharan mod_timer(&htt->rx_ring.refill_retry_timer, jiffies + 2405c86d97bSRajkumar Manoharan msecs_to_jiffies(HTT_RX_RING_REFILL_RESCHED_MS)); 2415e3dd157SKalle Valo } 2425e3dd157SKalle Valo spin_unlock_bh(&htt->rx_ring.lock); 2435e3dd157SKalle Valo } 2445e3dd157SKalle Valo 2457ac76764SKees Cook static void ath10k_htt_rx_ring_refill_retry(struct timer_list *t) 2465e3dd157SKalle Valo { 2477ac76764SKees Cook struct ath10k_htt *htt = from_timer(htt, t, rx_ring.refill_retry_timer); 248af762c0bSKalle Valo 2495e3dd157SKalle Valo ath10k_htt_rx_msdu_buff_replenish(htt); 2505e3dd157SKalle Valo } 2515e3dd157SKalle Valo 252c545070eSMichal Kazior int ath10k_htt_rx_ring_refill(struct ath10k *ar) 2533e841fd0SMichal Kazior { 254c545070eSMichal Kazior struct ath10k_htt *htt = &ar->htt; 255c545070eSMichal Kazior int ret; 2563e841fd0SMichal Kazior 257de8781d7SGovind Singh if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) 258f88d4934SErik Stromdahl return 0; 259f88d4934SErik Stromdahl 260c545070eSMichal Kazior spin_lock_bh(&htt->rx_ring.lock); 261c545070eSMichal Kazior ret = ath10k_htt_rx_ring_fill_n(htt, (htt->rx_ring.fill_level - 262c545070eSMichal Kazior htt->rx_ring.fill_cnt)); 2633e841fd0SMichal Kazior 264c545070eSMichal Kazior if (ret) 265c545070eSMichal Kazior ath10k_htt_rx_ring_free(htt); 266c545070eSMichal Kazior 267168f75f1SBen Greear spin_unlock_bh(&htt->rx_ring.lock); 268168f75f1SBen Greear 269c545070eSMichal Kazior return ret; 2703e841fd0SMichal Kazior } 2713e841fd0SMichal Kazior 27295bf21f9SMichal Kazior void ath10k_htt_rx_free(struct ath10k_htt *htt) 2735e3dd157SKalle Valo { 274de8781d7SGovind Singh if (htt->ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) 275f88d4934SErik Stromdahl return; 276f88d4934SErik Stromdahl 2775e3dd157SKalle Valo del_timer_sync(&htt->rx_ring.refill_retry_timer); 2786c5151a9SMichal Kazior 279deba1b9eSRajkumar Manoharan skb_queue_purge(&htt->rx_msdus_q); 280c545070eSMichal Kazior skb_queue_purge(&htt->rx_in_ord_compl_q); 281426e10eaSMichal Kazior skb_queue_purge(&htt->tx_fetch_ind_q); 2825e3dd157SKalle Valo 283168f75f1SBen Greear spin_lock_bh(&htt->rx_ring.lock); 284c545070eSMichal Kazior ath10k_htt_rx_ring_free(htt); 285168f75f1SBen Greear spin_unlock_bh(&htt->rx_ring.lock); 2865e3dd157SKalle Valo 2875e3dd157SKalle Valo dma_free_coherent(htt->ar->dev, 2889a5511d5SErik Stromdahl ath10k_htt_get_rx_ring_size(htt), 2899a5511d5SErik Stromdahl ath10k_htt_get_vaddr_ring(htt), 2905e3dd157SKalle Valo htt->rx_ring.base_paddr); 2915e3dd157SKalle Valo 2925e3dd157SKalle Valo dma_free_coherent(htt->ar->dev, 2935e3dd157SKalle Valo sizeof(*htt->rx_ring.alloc_idx.vaddr), 2945e3dd157SKalle Valo htt->rx_ring.alloc_idx.vaddr, 2955e3dd157SKalle Valo htt->rx_ring.alloc_idx.paddr); 2965e3dd157SKalle Valo 2975e3dd157SKalle Valo kfree(htt->rx_ring.netbufs_ring); 2985e3dd157SKalle Valo } 2995e3dd157SKalle Valo 3005e3dd157SKalle Valo static inline struct sk_buff *ath10k_htt_rx_netbuf_pop(struct ath10k_htt *htt) 3015e3dd157SKalle Valo { 3027aa7a72aSMichal Kazior struct ath10k *ar = htt->ar; 3035e3dd157SKalle Valo int idx; 3045e3dd157SKalle Valo struct sk_buff *msdu; 3055e3dd157SKalle Valo 30645967089SMichal Kazior lockdep_assert_held(&htt->rx_ring.lock); 3075e3dd157SKalle Valo 3088d60ee87SMichal Kazior if (htt->rx_ring.fill_cnt == 0) { 3097aa7a72aSMichal Kazior ath10k_warn(ar, "tried to pop sk_buff from an empty rx ring\n"); 3108d60ee87SMichal Kazior return NULL; 3118d60ee87SMichal Kazior } 3125e3dd157SKalle Valo 3135e3dd157SKalle Valo idx = htt->rx_ring.sw_rd_idx.msdu_payld; 3145e3dd157SKalle Valo msdu = htt->rx_ring.netbufs_ring[idx]; 3153e841fd0SMichal Kazior htt->rx_ring.netbufs_ring[idx] = NULL; 3169a5511d5SErik Stromdahl ath10k_htt_reset_paddrs_ring(htt, idx); 3175e3dd157SKalle Valo 3185e3dd157SKalle Valo idx++; 3195e3dd157SKalle Valo idx &= htt->rx_ring.size_mask; 3205e3dd157SKalle Valo htt->rx_ring.sw_rd_idx.msdu_payld = idx; 3215e3dd157SKalle Valo htt->rx_ring.fill_cnt--; 3225e3dd157SKalle Valo 3234de02806SMichal Kazior dma_unmap_single(htt->ar->dev, 3248582bf3bSMichal Kazior ATH10K_SKB_RXCB(msdu)->paddr, 3254de02806SMichal Kazior msdu->len + skb_tailroom(msdu), 3264de02806SMichal Kazior DMA_FROM_DEVICE); 3274de02806SMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt rx netbuf pop: ", 3284de02806SMichal Kazior msdu->data, msdu->len + skb_tailroom(msdu)); 3294de02806SMichal Kazior 3305e3dd157SKalle Valo return msdu; 3315e3dd157SKalle Valo } 3325e3dd157SKalle Valo 333d84dd60fSJanusz Dziedzic /* return: < 0 fatal error, 0 - non chained msdu, 1 chained msdu */ 3345e3dd157SKalle Valo static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt, 335f0e2770fSMichal Kazior struct sk_buff_head *amsdu) 3365e3dd157SKalle Valo { 3377aa7a72aSMichal Kazior struct ath10k *ar = htt->ar; 3385e3dd157SKalle Valo int msdu_len, msdu_chaining = 0; 3399aa505d2SMichal Kazior struct sk_buff *msdu; 3405e3dd157SKalle Valo struct htt_rx_desc *rx_desc; 3415e3dd157SKalle Valo 34245967089SMichal Kazior lockdep_assert_held(&htt->rx_ring.lock); 34345967089SMichal Kazior 3449aa505d2SMichal Kazior for (;;) { 3455e3dd157SKalle Valo int last_msdu, msdu_len_invalid, msdu_chained; 3465e3dd157SKalle Valo 3479aa505d2SMichal Kazior msdu = ath10k_htt_rx_netbuf_pop(htt); 3489aa505d2SMichal Kazior if (!msdu) { 3499aa505d2SMichal Kazior __skb_queue_purge(amsdu); 350e0bd7513SMichal Kazior return -ENOENT; 3519aa505d2SMichal Kazior } 3529aa505d2SMichal Kazior 3539aa505d2SMichal Kazior __skb_queue_tail(amsdu, msdu); 3549aa505d2SMichal Kazior 3555e3dd157SKalle Valo rx_desc = (struct htt_rx_desc *)msdu->data; 3565e3dd157SKalle Valo 3575e3dd157SKalle Valo /* FIXME: we must report msdu payload since this is what caller 358d6dfe25cSMarcin Rokicki * expects now 359d6dfe25cSMarcin Rokicki */ 3605e3dd157SKalle Valo skb_put(msdu, offsetof(struct htt_rx_desc, msdu_payload)); 3615e3dd157SKalle Valo skb_pull(msdu, offsetof(struct htt_rx_desc, msdu_payload)); 3625e3dd157SKalle Valo 3635e3dd157SKalle Valo /* 3645e3dd157SKalle Valo * Sanity check - confirm the HW is finished filling in the 3655e3dd157SKalle Valo * rx data. 3665e3dd157SKalle Valo * If the HW and SW are working correctly, then it's guaranteed 3675e3dd157SKalle Valo * that the HW's MAC DMA is done before this point in the SW. 3685e3dd157SKalle Valo * To prevent the case that we handle a stale Rx descriptor, 3695e3dd157SKalle Valo * just assert for now until we have a way to recover. 3705e3dd157SKalle Valo */ 3715e3dd157SKalle Valo if (!(__le32_to_cpu(rx_desc->attention.flags) 3725e3dd157SKalle Valo & RX_ATTENTION_FLAGS_MSDU_DONE)) { 3739aa505d2SMichal Kazior __skb_queue_purge(amsdu); 374e0bd7513SMichal Kazior return -EIO; 3755e3dd157SKalle Valo } 3765e3dd157SKalle Valo 3775e3dd157SKalle Valo msdu_len_invalid = !!(__le32_to_cpu(rx_desc->attention.flags) 3785e3dd157SKalle Valo & (RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR | 3795e3dd157SKalle Valo RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR)); 3801f5dbfbbSPeter Oh msdu_len = MS(__le32_to_cpu(rx_desc->msdu_start.common.info0), 3815e3dd157SKalle Valo RX_MSDU_START_INFO0_MSDU_LENGTH); 3825e3dd157SKalle Valo msdu_chained = rx_desc->frag_info.ring2_more_count; 3835e3dd157SKalle Valo 3845e3dd157SKalle Valo if (msdu_len_invalid) 3855e3dd157SKalle Valo msdu_len = 0; 3865e3dd157SKalle Valo 3875e3dd157SKalle Valo skb_trim(msdu, 0); 3885e3dd157SKalle Valo skb_put(msdu, min(msdu_len, HTT_RX_MSDU_SIZE)); 3895e3dd157SKalle Valo msdu_len -= msdu->len; 3905e3dd157SKalle Valo 3919aa505d2SMichal Kazior /* Note: Chained buffers do not contain rx descriptor */ 3925e3dd157SKalle Valo while (msdu_chained--) { 3939aa505d2SMichal Kazior msdu = ath10k_htt_rx_netbuf_pop(htt); 3949aa505d2SMichal Kazior if (!msdu) { 3959aa505d2SMichal Kazior __skb_queue_purge(amsdu); 396e0bd7513SMichal Kazior return -ENOENT; 397b30595aeSMichal Kazior } 398b30595aeSMichal Kazior 3999aa505d2SMichal Kazior __skb_queue_tail(amsdu, msdu); 4009aa505d2SMichal Kazior skb_trim(msdu, 0); 4019aa505d2SMichal Kazior skb_put(msdu, min(msdu_len, HTT_RX_BUF_SIZE)); 4029aa505d2SMichal Kazior msdu_len -= msdu->len; 403ede9c8e0SMichal Kazior msdu_chaining = 1; 4045e3dd157SKalle Valo } 4055e3dd157SKalle Valo 4061f5dbfbbSPeter Oh last_msdu = __le32_to_cpu(rx_desc->msdu_end.common.info0) & 4075e3dd157SKalle Valo RX_MSDU_END_INFO0_LAST_MSDU; 4085e3dd157SKalle Valo 409b04e204fSMichal Kazior trace_ath10k_htt_rx_desc(ar, &rx_desc->attention, 410a0883cf7SRajkumar Manoharan sizeof(*rx_desc) - sizeof(u32)); 4119aa505d2SMichal Kazior 4129aa505d2SMichal Kazior if (last_msdu) 4135e3dd157SKalle Valo break; 414d8bb26b9SKalle Valo } 415d8bb26b9SKalle Valo 4169aa505d2SMichal Kazior if (skb_queue_empty(amsdu)) 417d84dd60fSJanusz Dziedzic msdu_chaining = -1; 418d84dd60fSJanusz Dziedzic 4195e3dd157SKalle Valo /* 4205e3dd157SKalle Valo * Don't refill the ring yet. 4215e3dd157SKalle Valo * 4225e3dd157SKalle Valo * First, the elements popped here are still in use - it is not 4235e3dd157SKalle Valo * safe to overwrite them until the matching call to 4245e3dd157SKalle Valo * mpdu_desc_list_next. Second, for efficiency it is preferable to 4255e3dd157SKalle Valo * refill the rx ring with 1 PPDU's worth of rx buffers (something 4265e3dd157SKalle Valo * like 32 x 3 buffers), rather than one MPDU's worth of rx buffers 4275e3dd157SKalle Valo * (something like 3 buffers). Consequently, we'll rely on the txrx 4285e3dd157SKalle Valo * SW to tell us when it is done pulling all the PPDU's rx buffers 4295e3dd157SKalle Valo * out of the rx ring, and then refill it just once. 4305e3dd157SKalle Valo */ 4315e3dd157SKalle Valo 4325e3dd157SKalle Valo return msdu_chaining; 4335e3dd157SKalle Valo } 4345e3dd157SKalle Valo 435c545070eSMichal Kazior static struct sk_buff *ath10k_htt_rx_pop_paddr(struct ath10k_htt *htt, 436a91a626bSGovind Singh u64 paddr) 437c545070eSMichal Kazior { 438c545070eSMichal Kazior struct ath10k *ar = htt->ar; 439c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb; 440c545070eSMichal Kazior struct sk_buff *msdu; 441c545070eSMichal Kazior 442c545070eSMichal Kazior lockdep_assert_held(&htt->rx_ring.lock); 443c545070eSMichal Kazior 444c545070eSMichal Kazior msdu = ath10k_htt_rx_find_skb_paddr(ar, paddr); 445c545070eSMichal Kazior if (!msdu) 446c545070eSMichal Kazior return NULL; 447c545070eSMichal Kazior 448c545070eSMichal Kazior rxcb = ATH10K_SKB_RXCB(msdu); 449c545070eSMichal Kazior hash_del(&rxcb->hlist); 450c545070eSMichal Kazior htt->rx_ring.fill_cnt--; 451c545070eSMichal Kazior 452c545070eSMichal Kazior dma_unmap_single(htt->ar->dev, rxcb->paddr, 453c545070eSMichal Kazior msdu->len + skb_tailroom(msdu), 454c545070eSMichal Kazior DMA_FROM_DEVICE); 455c545070eSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt rx netbuf pop: ", 456c545070eSMichal Kazior msdu->data, msdu->len + skb_tailroom(msdu)); 457c545070eSMichal Kazior 458c545070eSMichal Kazior return msdu; 459c545070eSMichal Kazior } 460c545070eSMichal Kazior 46185bd0107SYu Wang static inline void ath10k_htt_append_frag_list(struct sk_buff *skb_head, 46285bd0107SYu Wang struct sk_buff *frag_list, 46385bd0107SYu Wang unsigned int frag_len) 46485bd0107SYu Wang { 46585bd0107SYu Wang skb_shinfo(skb_head)->frag_list = frag_list; 46685bd0107SYu Wang skb_head->data_len = frag_len; 46785bd0107SYu Wang skb_head->len += skb_head->data_len; 46885bd0107SYu Wang } 46985bd0107SYu Wang 47085bd0107SYu Wang static int ath10k_htt_rx_handle_amsdu_mon_32(struct ath10k_htt *htt, 47185bd0107SYu Wang struct sk_buff *msdu, 47285bd0107SYu Wang struct htt_rx_in_ord_msdu_desc **msdu_desc) 47385bd0107SYu Wang { 47485bd0107SYu Wang struct ath10k *ar = htt->ar; 47585bd0107SYu Wang u32 paddr; 47685bd0107SYu Wang struct sk_buff *frag_buf; 47785bd0107SYu Wang struct sk_buff *prev_frag_buf; 47885bd0107SYu Wang u8 last_frag; 47985bd0107SYu Wang struct htt_rx_in_ord_msdu_desc *ind_desc = *msdu_desc; 48085bd0107SYu Wang struct htt_rx_desc *rxd; 48185bd0107SYu Wang int amsdu_len = __le16_to_cpu(ind_desc->msdu_len); 48285bd0107SYu Wang 48385bd0107SYu Wang rxd = (void *)msdu->data; 48485bd0107SYu Wang trace_ath10k_htt_rx_desc(ar, rxd, sizeof(*rxd)); 48585bd0107SYu Wang 48685bd0107SYu Wang skb_put(msdu, sizeof(struct htt_rx_desc)); 48785bd0107SYu Wang skb_pull(msdu, sizeof(struct htt_rx_desc)); 48885bd0107SYu Wang skb_put(msdu, min(amsdu_len, HTT_RX_MSDU_SIZE)); 48985bd0107SYu Wang amsdu_len -= msdu->len; 49085bd0107SYu Wang 49185bd0107SYu Wang last_frag = ind_desc->reserved; 49285bd0107SYu Wang if (last_frag) { 49385bd0107SYu Wang if (amsdu_len) { 49485bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d", 49585bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len), 49685bd0107SYu Wang amsdu_len); 49785bd0107SYu Wang } 49885bd0107SYu Wang return 0; 49985bd0107SYu Wang } 50085bd0107SYu Wang 50185bd0107SYu Wang ind_desc++; 50285bd0107SYu Wang paddr = __le32_to_cpu(ind_desc->msdu_paddr); 50385bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr); 50485bd0107SYu Wang if (!frag_buf) { 50585bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-1 paddr: 0x%x", paddr); 50685bd0107SYu Wang return -ENOENT; 50785bd0107SYu Wang } 50885bd0107SYu Wang 50985bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE)); 51085bd0107SYu Wang ath10k_htt_append_frag_list(msdu, frag_buf, amsdu_len); 51185bd0107SYu Wang 51285bd0107SYu Wang amsdu_len -= frag_buf->len; 51385bd0107SYu Wang prev_frag_buf = frag_buf; 51485bd0107SYu Wang last_frag = ind_desc->reserved; 51585bd0107SYu Wang while (!last_frag) { 51685bd0107SYu Wang ind_desc++; 51785bd0107SYu Wang paddr = __le32_to_cpu(ind_desc->msdu_paddr); 51885bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr); 51985bd0107SYu Wang if (!frag_buf) { 52085bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-n paddr: 0x%x", 52185bd0107SYu Wang paddr); 52285bd0107SYu Wang prev_frag_buf->next = NULL; 52385bd0107SYu Wang return -ENOENT; 52485bd0107SYu Wang } 52585bd0107SYu Wang 52685bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE)); 52785bd0107SYu Wang last_frag = ind_desc->reserved; 52885bd0107SYu Wang amsdu_len -= frag_buf->len; 52985bd0107SYu Wang 53085bd0107SYu Wang prev_frag_buf->next = frag_buf; 53185bd0107SYu Wang prev_frag_buf = frag_buf; 53285bd0107SYu Wang } 53385bd0107SYu Wang 53485bd0107SYu Wang if (amsdu_len) { 53585bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d", 53685bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len), amsdu_len); 53785bd0107SYu Wang } 53885bd0107SYu Wang 53985bd0107SYu Wang *msdu_desc = ind_desc; 54085bd0107SYu Wang 54185bd0107SYu Wang prev_frag_buf->next = NULL; 54285bd0107SYu Wang return 0; 54385bd0107SYu Wang } 54485bd0107SYu Wang 54585bd0107SYu Wang static int 54685bd0107SYu Wang ath10k_htt_rx_handle_amsdu_mon_64(struct ath10k_htt *htt, 54785bd0107SYu Wang struct sk_buff *msdu, 54885bd0107SYu Wang struct htt_rx_in_ord_msdu_desc_ext **msdu_desc) 54985bd0107SYu Wang { 55085bd0107SYu Wang struct ath10k *ar = htt->ar; 55185bd0107SYu Wang u64 paddr; 55285bd0107SYu Wang struct sk_buff *frag_buf; 55385bd0107SYu Wang struct sk_buff *prev_frag_buf; 55485bd0107SYu Wang u8 last_frag; 55585bd0107SYu Wang struct htt_rx_in_ord_msdu_desc_ext *ind_desc = *msdu_desc; 55685bd0107SYu Wang struct htt_rx_desc *rxd; 55785bd0107SYu Wang int amsdu_len = __le16_to_cpu(ind_desc->msdu_len); 55885bd0107SYu Wang 55985bd0107SYu Wang rxd = (void *)msdu->data; 56085bd0107SYu Wang trace_ath10k_htt_rx_desc(ar, rxd, sizeof(*rxd)); 56185bd0107SYu Wang 56285bd0107SYu Wang skb_put(msdu, sizeof(struct htt_rx_desc)); 56385bd0107SYu Wang skb_pull(msdu, sizeof(struct htt_rx_desc)); 56485bd0107SYu Wang skb_put(msdu, min(amsdu_len, HTT_RX_MSDU_SIZE)); 56585bd0107SYu Wang amsdu_len -= msdu->len; 56685bd0107SYu Wang 56785bd0107SYu Wang last_frag = ind_desc->reserved; 56885bd0107SYu Wang if (last_frag) { 56985bd0107SYu Wang if (amsdu_len) { 57085bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d", 57185bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len), 57285bd0107SYu Wang amsdu_len); 57385bd0107SYu Wang } 57485bd0107SYu Wang return 0; 57585bd0107SYu Wang } 57685bd0107SYu Wang 57785bd0107SYu Wang ind_desc++; 57885bd0107SYu Wang paddr = __le64_to_cpu(ind_desc->msdu_paddr); 57985bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr); 58085bd0107SYu Wang if (!frag_buf) { 58185bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-1 paddr: 0x%llx", paddr); 58285bd0107SYu Wang return -ENOENT; 58385bd0107SYu Wang } 58485bd0107SYu Wang 58585bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE)); 58685bd0107SYu Wang ath10k_htt_append_frag_list(msdu, frag_buf, amsdu_len); 58785bd0107SYu Wang 58885bd0107SYu Wang amsdu_len -= frag_buf->len; 58985bd0107SYu Wang prev_frag_buf = frag_buf; 59085bd0107SYu Wang last_frag = ind_desc->reserved; 59185bd0107SYu Wang while (!last_frag) { 59285bd0107SYu Wang ind_desc++; 59385bd0107SYu Wang paddr = __le64_to_cpu(ind_desc->msdu_paddr); 59485bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr); 59585bd0107SYu Wang if (!frag_buf) { 59685bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-n paddr: 0x%llx", 59785bd0107SYu Wang paddr); 59885bd0107SYu Wang prev_frag_buf->next = NULL; 59985bd0107SYu Wang return -ENOENT; 60085bd0107SYu Wang } 60185bd0107SYu Wang 60285bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE)); 60385bd0107SYu Wang last_frag = ind_desc->reserved; 60485bd0107SYu Wang amsdu_len -= frag_buf->len; 60585bd0107SYu Wang 60685bd0107SYu Wang prev_frag_buf->next = frag_buf; 60785bd0107SYu Wang prev_frag_buf = frag_buf; 60885bd0107SYu Wang } 60985bd0107SYu Wang 61085bd0107SYu Wang if (amsdu_len) { 61185bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d", 61285bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len), amsdu_len); 61385bd0107SYu Wang } 61485bd0107SYu Wang 61585bd0107SYu Wang *msdu_desc = ind_desc; 61685bd0107SYu Wang 61785bd0107SYu Wang prev_frag_buf->next = NULL; 61885bd0107SYu Wang return 0; 61985bd0107SYu Wang } 62085bd0107SYu Wang 6213b0b55b1SGovind Singh static int ath10k_htt_rx_pop_paddr32_list(struct ath10k_htt *htt, 622c545070eSMichal Kazior struct htt_rx_in_ord_ind *ev, 623c545070eSMichal Kazior struct sk_buff_head *list) 624c545070eSMichal Kazior { 625c545070eSMichal Kazior struct ath10k *ar = htt->ar; 6263b0b55b1SGovind Singh struct htt_rx_in_ord_msdu_desc *msdu_desc = ev->msdu_descs32; 627c545070eSMichal Kazior struct htt_rx_desc *rxd; 628c545070eSMichal Kazior struct sk_buff *msdu; 62985bd0107SYu Wang int msdu_count, ret; 630c545070eSMichal Kazior bool is_offload; 631c545070eSMichal Kazior u32 paddr; 632c545070eSMichal Kazior 633c545070eSMichal Kazior lockdep_assert_held(&htt->rx_ring.lock); 634c545070eSMichal Kazior 635c545070eSMichal Kazior msdu_count = __le16_to_cpu(ev->msdu_count); 636c545070eSMichal Kazior is_offload = !!(ev->info & HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK); 637c545070eSMichal Kazior 638c545070eSMichal Kazior while (msdu_count--) { 639c545070eSMichal Kazior paddr = __le32_to_cpu(msdu_desc->msdu_paddr); 640c545070eSMichal Kazior 641c545070eSMichal Kazior msdu = ath10k_htt_rx_pop_paddr(htt, paddr); 642c545070eSMichal Kazior if (!msdu) { 643c545070eSMichal Kazior __skb_queue_purge(list); 644c545070eSMichal Kazior return -ENOENT; 645c545070eSMichal Kazior } 646c545070eSMichal Kazior 64785bd0107SYu Wang if (!is_offload && ar->monitor_arvif) { 64885bd0107SYu Wang ret = ath10k_htt_rx_handle_amsdu_mon_32(htt, msdu, 64985bd0107SYu Wang &msdu_desc); 65085bd0107SYu Wang if (ret) { 65185bd0107SYu Wang __skb_queue_purge(list); 65285bd0107SYu Wang return ret; 65385bd0107SYu Wang } 65485bd0107SYu Wang __skb_queue_tail(list, msdu); 65585bd0107SYu Wang msdu_desc++; 65685bd0107SYu Wang continue; 65785bd0107SYu Wang } 65885bd0107SYu Wang 659c545070eSMichal Kazior __skb_queue_tail(list, msdu); 660c545070eSMichal Kazior 661c545070eSMichal Kazior if (!is_offload) { 662c545070eSMichal Kazior rxd = (void *)msdu->data; 663c545070eSMichal Kazior 664c545070eSMichal Kazior trace_ath10k_htt_rx_desc(ar, rxd, sizeof(*rxd)); 665c545070eSMichal Kazior 666c545070eSMichal Kazior skb_put(msdu, sizeof(*rxd)); 667c545070eSMichal Kazior skb_pull(msdu, sizeof(*rxd)); 668c545070eSMichal Kazior skb_put(msdu, __le16_to_cpu(msdu_desc->msdu_len)); 669c545070eSMichal Kazior 670c545070eSMichal Kazior if (!(__le32_to_cpu(rxd->attention.flags) & 671c545070eSMichal Kazior RX_ATTENTION_FLAGS_MSDU_DONE)) { 672c545070eSMichal Kazior ath10k_warn(htt->ar, "tried to pop an incomplete frame, oops!\n"); 673c545070eSMichal Kazior return -EIO; 674c545070eSMichal Kazior } 675c545070eSMichal Kazior } 676c545070eSMichal Kazior 677c545070eSMichal Kazior msdu_desc++; 678c545070eSMichal Kazior } 679c545070eSMichal Kazior 680c545070eSMichal Kazior return 0; 681c545070eSMichal Kazior } 682c545070eSMichal Kazior 6833b0b55b1SGovind Singh static int ath10k_htt_rx_pop_paddr64_list(struct ath10k_htt *htt, 6843b0b55b1SGovind Singh struct htt_rx_in_ord_ind *ev, 6853b0b55b1SGovind Singh struct sk_buff_head *list) 6863b0b55b1SGovind Singh { 6873b0b55b1SGovind Singh struct ath10k *ar = htt->ar; 6883b0b55b1SGovind Singh struct htt_rx_in_ord_msdu_desc_ext *msdu_desc = ev->msdu_descs64; 6893b0b55b1SGovind Singh struct htt_rx_desc *rxd; 6903b0b55b1SGovind Singh struct sk_buff *msdu; 69185bd0107SYu Wang int msdu_count, ret; 6923b0b55b1SGovind Singh bool is_offload; 6933b0b55b1SGovind Singh u64 paddr; 6943b0b55b1SGovind Singh 6953b0b55b1SGovind Singh lockdep_assert_held(&htt->rx_ring.lock); 6963b0b55b1SGovind Singh 6973b0b55b1SGovind Singh msdu_count = __le16_to_cpu(ev->msdu_count); 6983b0b55b1SGovind Singh is_offload = !!(ev->info & HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK); 6993b0b55b1SGovind Singh 7003b0b55b1SGovind Singh while (msdu_count--) { 7013b0b55b1SGovind Singh paddr = __le64_to_cpu(msdu_desc->msdu_paddr); 7023b0b55b1SGovind Singh msdu = ath10k_htt_rx_pop_paddr(htt, paddr); 7033b0b55b1SGovind Singh if (!msdu) { 7043b0b55b1SGovind Singh __skb_queue_purge(list); 7053b0b55b1SGovind Singh return -ENOENT; 7063b0b55b1SGovind Singh } 7073b0b55b1SGovind Singh 70885bd0107SYu Wang if (!is_offload && ar->monitor_arvif) { 70985bd0107SYu Wang ret = ath10k_htt_rx_handle_amsdu_mon_64(htt, msdu, 71085bd0107SYu Wang &msdu_desc); 71185bd0107SYu Wang if (ret) { 71285bd0107SYu Wang __skb_queue_purge(list); 71385bd0107SYu Wang return ret; 71485bd0107SYu Wang } 71585bd0107SYu Wang __skb_queue_tail(list, msdu); 71685bd0107SYu Wang msdu_desc++; 71785bd0107SYu Wang continue; 71885bd0107SYu Wang } 71985bd0107SYu Wang 7203b0b55b1SGovind Singh __skb_queue_tail(list, msdu); 7213b0b55b1SGovind Singh 7223b0b55b1SGovind Singh if (!is_offload) { 7233b0b55b1SGovind Singh rxd = (void *)msdu->data; 7243b0b55b1SGovind Singh 7253b0b55b1SGovind Singh trace_ath10k_htt_rx_desc(ar, rxd, sizeof(*rxd)); 7263b0b55b1SGovind Singh 7273b0b55b1SGovind Singh skb_put(msdu, sizeof(*rxd)); 7283b0b55b1SGovind Singh skb_pull(msdu, sizeof(*rxd)); 7293b0b55b1SGovind Singh skb_put(msdu, __le16_to_cpu(msdu_desc->msdu_len)); 7303b0b55b1SGovind Singh 7313b0b55b1SGovind Singh if (!(__le32_to_cpu(rxd->attention.flags) & 7323b0b55b1SGovind Singh RX_ATTENTION_FLAGS_MSDU_DONE)) { 7333b0b55b1SGovind Singh ath10k_warn(htt->ar, "tried to pop an incomplete frame, oops!\n"); 7343b0b55b1SGovind Singh return -EIO; 7353b0b55b1SGovind Singh } 7363b0b55b1SGovind Singh } 7373b0b55b1SGovind Singh 7383b0b55b1SGovind Singh msdu_desc++; 7393b0b55b1SGovind Singh } 7403b0b55b1SGovind Singh 7413b0b55b1SGovind Singh return 0; 7423b0b55b1SGovind Singh } 7433b0b55b1SGovind Singh 74495bf21f9SMichal Kazior int ath10k_htt_rx_alloc(struct ath10k_htt *htt) 7455e3dd157SKalle Valo { 7467aa7a72aSMichal Kazior struct ath10k *ar = htt->ar; 7475e3dd157SKalle Valo dma_addr_t paddr; 748a91a626bSGovind Singh void *vaddr, *vaddr_ring; 749bd8bdbb6SKalle Valo size_t size; 7505e3dd157SKalle Valo struct timer_list *timer = &htt->rx_ring.refill_retry_timer; 7515e3dd157SKalle Valo 752de8781d7SGovind Singh if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) 753f88d4934SErik Stromdahl return 0; 754f88d4934SErik Stromdahl 75551fc7d74SMichal Kazior htt->rx_confused = false; 75651fc7d74SMichal Kazior 757fe2407a8SMichal Kazior /* XXX: The fill level could be changed during runtime in response to 758fe2407a8SMichal Kazior * the host processing latency. Is this really worth it? 759fe2407a8SMichal Kazior */ 760fe2407a8SMichal Kazior htt->rx_ring.size = HTT_RX_RING_SIZE; 761fe2407a8SMichal Kazior htt->rx_ring.size_mask = htt->rx_ring.size - 1; 762bb8d0d15SGovind Singh htt->rx_ring.fill_level = ar->hw_params.rx_ring_fill_level; 763fe2407a8SMichal Kazior 7645e3dd157SKalle Valo if (!is_power_of_2(htt->rx_ring.size)) { 7657aa7a72aSMichal Kazior ath10k_warn(ar, "htt rx ring size is not power of 2\n"); 7665e3dd157SKalle Valo return -EINVAL; 7675e3dd157SKalle Valo } 7685e3dd157SKalle Valo 7695e3dd157SKalle Valo htt->rx_ring.netbufs_ring = 7706396bb22SKees Cook kcalloc(htt->rx_ring.size, sizeof(struct sk_buff *), 7715e3dd157SKalle Valo GFP_KERNEL); 7725e3dd157SKalle Valo if (!htt->rx_ring.netbufs_ring) 7735e3dd157SKalle Valo goto err_netbuf; 7745e3dd157SKalle Valo 7759a5511d5SErik Stromdahl size = ath10k_htt_get_rx_ring_size(htt); 776bd8bdbb6SKalle Valo 777a91a626bSGovind Singh vaddr_ring = dma_alloc_coherent(htt->ar->dev, size, &paddr, GFP_KERNEL); 778a91a626bSGovind Singh if (!vaddr_ring) 7795e3dd157SKalle Valo goto err_dma_ring; 7805e3dd157SKalle Valo 7819a5511d5SErik Stromdahl ath10k_htt_config_paddrs_ring(htt, vaddr_ring); 7825e3dd157SKalle Valo htt->rx_ring.base_paddr = paddr; 7835e3dd157SKalle Valo 7845e3dd157SKalle Valo vaddr = dma_alloc_coherent(htt->ar->dev, 7855e3dd157SKalle Valo sizeof(*htt->rx_ring.alloc_idx.vaddr), 786d6cb23b5SFelix Fietkau &paddr, GFP_KERNEL); 7875e3dd157SKalle Valo if (!vaddr) 7885e3dd157SKalle Valo goto err_dma_idx; 7895e3dd157SKalle Valo 7905e3dd157SKalle Valo htt->rx_ring.alloc_idx.vaddr = vaddr; 7915e3dd157SKalle Valo htt->rx_ring.alloc_idx.paddr = paddr; 792c545070eSMichal Kazior htt->rx_ring.sw_rd_idx.msdu_payld = htt->rx_ring.size_mask; 7935e3dd157SKalle Valo *htt->rx_ring.alloc_idx.vaddr = 0; 7945e3dd157SKalle Valo 7955e3dd157SKalle Valo /* Initialize the Rx refill retry timer */ 7967ac76764SKees Cook timer_setup(timer, ath10k_htt_rx_ring_refill_retry, 0); 7975e3dd157SKalle Valo 7985e3dd157SKalle Valo spin_lock_init(&htt->rx_ring.lock); 7995e3dd157SKalle Valo 8005e3dd157SKalle Valo htt->rx_ring.fill_cnt = 0; 801c545070eSMichal Kazior htt->rx_ring.sw_rd_idx.msdu_payld = 0; 802c545070eSMichal Kazior hash_init(htt->rx_ring.skb_table); 8035e3dd157SKalle Valo 804deba1b9eSRajkumar Manoharan skb_queue_head_init(&htt->rx_msdus_q); 805c545070eSMichal Kazior skb_queue_head_init(&htt->rx_in_ord_compl_q); 806426e10eaSMichal Kazior skb_queue_head_init(&htt->tx_fetch_ind_q); 8073128b3d8SRajkumar Manoharan atomic_set(&htt->num_mpdus_ready, 0); 8086c5151a9SMichal Kazior 8097aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt rx ring size %d fill_level %d\n", 8105e3dd157SKalle Valo htt->rx_ring.size, htt->rx_ring.fill_level); 8115e3dd157SKalle Valo return 0; 8125e3dd157SKalle Valo 8135e3dd157SKalle Valo err_dma_idx: 8145e3dd157SKalle Valo dma_free_coherent(htt->ar->dev, 8159a5511d5SErik Stromdahl ath10k_htt_get_rx_ring_size(htt), 816a91a626bSGovind Singh vaddr_ring, 8175e3dd157SKalle Valo htt->rx_ring.base_paddr); 8185e3dd157SKalle Valo err_dma_ring: 8195e3dd157SKalle Valo kfree(htt->rx_ring.netbufs_ring); 8205e3dd157SKalle Valo err_netbuf: 8215e3dd157SKalle Valo return -ENOMEM; 8225e3dd157SKalle Valo } 8235e3dd157SKalle Valo 8247aa7a72aSMichal Kazior static int ath10k_htt_rx_crypto_param_len(struct ath10k *ar, 8257aa7a72aSMichal Kazior enum htt_rx_mpdu_encrypt_type type) 8265e3dd157SKalle Valo { 8275e3dd157SKalle Valo switch (type) { 828890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_NONE: 829890d3b2aSMichal Kazior return 0; 8305e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP40: 8315e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP104: 832890d3b2aSMichal Kazior return IEEE80211_WEP_IV_LEN; 8335e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC: 8345e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WPA: 835890d3b2aSMichal Kazior return IEEE80211_TKIP_IV_LEN; 8365e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2: 837890d3b2aSMichal Kazior return IEEE80211_CCMP_HDR_LEN; 8387eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2: 8397eccb738SVasanthakumar Thiagarajan return IEEE80211_CCMP_256_HDR_LEN; 8407eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2: 8417eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2: 8427eccb738SVasanthakumar Thiagarajan return IEEE80211_GCMP_HDR_LEN; 843890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WEP128: 844890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WAPI: 845890d3b2aSMichal Kazior break; 846890d3b2aSMichal Kazior } 847890d3b2aSMichal Kazior 848890d3b2aSMichal Kazior ath10k_warn(ar, "unsupported encryption type %d\n", type); 8495e3dd157SKalle Valo return 0; 8505e3dd157SKalle Valo } 8515e3dd157SKalle Valo 852890d3b2aSMichal Kazior #define MICHAEL_MIC_LEN 8 8535e3dd157SKalle Valo 854307aeb31SVasanthakumar Thiagarajan static int ath10k_htt_rx_crypto_mic_len(struct ath10k *ar, 8557aa7a72aSMichal Kazior enum htt_rx_mpdu_encrypt_type type) 8565e3dd157SKalle Valo { 8575e3dd157SKalle Valo switch (type) { 8585e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_NONE: 8595e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP40: 8605e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP104: 8615e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC: 8625e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WPA: 863307aeb31SVasanthakumar Thiagarajan return 0; 8645e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2: 865890d3b2aSMichal Kazior return IEEE80211_CCMP_MIC_LEN; 8667eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2: 8677eccb738SVasanthakumar Thiagarajan return IEEE80211_CCMP_256_MIC_LEN; 8687eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2: 8697eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2: 8707eccb738SVasanthakumar Thiagarajan return IEEE80211_GCMP_MIC_LEN; 871890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WEP128: 872890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WAPI: 873890d3b2aSMichal Kazior break; 8745e3dd157SKalle Valo } 8755e3dd157SKalle Valo 876890d3b2aSMichal Kazior ath10k_warn(ar, "unsupported encryption type %d\n", type); 8775e3dd157SKalle Valo return 0; 8785e3dd157SKalle Valo } 8795e3dd157SKalle Valo 880307aeb31SVasanthakumar Thiagarajan static int ath10k_htt_rx_crypto_icv_len(struct ath10k *ar, 881307aeb31SVasanthakumar Thiagarajan enum htt_rx_mpdu_encrypt_type type) 882307aeb31SVasanthakumar Thiagarajan { 883307aeb31SVasanthakumar Thiagarajan switch (type) { 884307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_NONE: 885307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2: 886307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2: 887307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2: 888307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2: 889307aeb31SVasanthakumar Thiagarajan return 0; 890307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WEP40: 891307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WEP104: 892307aeb31SVasanthakumar Thiagarajan return IEEE80211_WEP_ICV_LEN; 893307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC: 894307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_TKIP_WPA: 895307aeb31SVasanthakumar Thiagarajan return IEEE80211_TKIP_ICV_LEN; 896307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WEP128: 897307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WAPI: 898307aeb31SVasanthakumar Thiagarajan break; 899307aeb31SVasanthakumar Thiagarajan } 900307aeb31SVasanthakumar Thiagarajan 901307aeb31SVasanthakumar Thiagarajan ath10k_warn(ar, "unsupported encryption type %d\n", type); 902307aeb31SVasanthakumar Thiagarajan return 0; 903307aeb31SVasanthakumar Thiagarajan } 904307aeb31SVasanthakumar Thiagarajan 905f6dc2095SMichal Kazior struct amsdu_subframe_hdr { 906f6dc2095SMichal Kazior u8 dst[ETH_ALEN]; 907f6dc2095SMichal Kazior u8 src[ETH_ALEN]; 908f6dc2095SMichal Kazior __be16 len; 909f6dc2095SMichal Kazior } __packed; 910f6dc2095SMichal Kazior 9116986fdd6SMichal Kazior #define GROUP_ID_IS_SU_MIMO(x) ((x) == 0 || (x) == 63) 9126986fdd6SMichal Kazior 91391493e8eSChristian Lamparter static inline u8 ath10k_bw_to_mac80211_bw(u8 bw) 91491493e8eSChristian Lamparter { 91591493e8eSChristian Lamparter u8 ret = 0; 91691493e8eSChristian Lamparter 91791493e8eSChristian Lamparter switch (bw) { 91891493e8eSChristian Lamparter case 0: 91991493e8eSChristian Lamparter ret = RATE_INFO_BW_20; 92091493e8eSChristian Lamparter break; 92191493e8eSChristian Lamparter case 1: 92291493e8eSChristian Lamparter ret = RATE_INFO_BW_40; 92391493e8eSChristian Lamparter break; 92491493e8eSChristian Lamparter case 2: 92591493e8eSChristian Lamparter ret = RATE_INFO_BW_80; 92691493e8eSChristian Lamparter break; 92791493e8eSChristian Lamparter case 3: 92891493e8eSChristian Lamparter ret = RATE_INFO_BW_160; 92991493e8eSChristian Lamparter break; 93091493e8eSChristian Lamparter } 93191493e8eSChristian Lamparter 93291493e8eSChristian Lamparter return ret; 93391493e8eSChristian Lamparter } 93491493e8eSChristian Lamparter 93587326c97SJanusz Dziedzic static void ath10k_htt_rx_h_rates(struct ath10k *ar, 936b9fd8a84SMichal Kazior struct ieee80211_rx_status *status, 937b9fd8a84SMichal Kazior struct htt_rx_desc *rxd) 93873539b40SJanusz Dziedzic { 9395528e032SMichal Kazior struct ieee80211_supported_band *sband; 9405528e032SMichal Kazior u8 cck, rate, bw, sgi, mcs, nss; 94173539b40SJanusz Dziedzic u8 preamble = 0; 9426986fdd6SMichal Kazior u8 group_id; 943b9fd8a84SMichal Kazior u32 info1, info2, info3; 94473539b40SJanusz Dziedzic 945b9fd8a84SMichal Kazior info1 = __le32_to_cpu(rxd->ppdu_start.info1); 946b9fd8a84SMichal Kazior info2 = __le32_to_cpu(rxd->ppdu_start.info2); 947b9fd8a84SMichal Kazior info3 = __le32_to_cpu(rxd->ppdu_start.info3); 948b9fd8a84SMichal Kazior 949b9fd8a84SMichal Kazior preamble = MS(info1, RX_PPDU_START_INFO1_PREAMBLE_TYPE); 95073539b40SJanusz Dziedzic 95173539b40SJanusz Dziedzic switch (preamble) { 95273539b40SJanusz Dziedzic case HTT_RX_LEGACY: 9535528e032SMichal Kazior /* To get legacy rate index band is required. Since band can't 9545528e032SMichal Kazior * be undefined check if freq is non-zero. 9555528e032SMichal Kazior */ 9565528e032SMichal Kazior if (!status->freq) 9575528e032SMichal Kazior return; 9585528e032SMichal Kazior 959b9fd8a84SMichal Kazior cck = info1 & RX_PPDU_START_INFO1_L_SIG_RATE_SELECT; 960b9fd8a84SMichal Kazior rate = MS(info1, RX_PPDU_START_INFO1_L_SIG_RATE); 9615528e032SMichal Kazior rate &= ~RX_PPDU_START_RATE_FLAG; 96273539b40SJanusz Dziedzic 9635528e032SMichal Kazior sband = &ar->mac.sbands[status->band]; 9644b7f353bSYanbo Li status->rate_idx = ath10k_mac_hw_rate_to_idx(sband, rate, cck); 96573539b40SJanusz Dziedzic break; 96673539b40SJanusz Dziedzic case HTT_RX_HT: 96773539b40SJanusz Dziedzic case HTT_RX_HT_WITH_TXBF: 968b9fd8a84SMichal Kazior /* HT-SIG - Table 20-11 in info2 and info3 */ 969b9fd8a84SMichal Kazior mcs = info2 & 0x1F; 97073539b40SJanusz Dziedzic nss = mcs >> 3; 971b9fd8a84SMichal Kazior bw = (info2 >> 7) & 1; 972b9fd8a84SMichal Kazior sgi = (info3 >> 7) & 1; 97373539b40SJanusz Dziedzic 97473539b40SJanusz Dziedzic status->rate_idx = mcs; 975da6a4352SJohannes Berg status->encoding = RX_ENC_HT; 97673539b40SJanusz Dziedzic if (sgi) 9777fdd69c5SJohannes Berg status->enc_flags |= RX_ENC_FLAG_SHORT_GI; 97873539b40SJanusz Dziedzic if (bw) 979da6a4352SJohannes Berg status->bw = RATE_INFO_BW_40; 98073539b40SJanusz Dziedzic break; 98173539b40SJanusz Dziedzic case HTT_RX_VHT: 98273539b40SJanusz Dziedzic case HTT_RX_VHT_WITH_TXBF: 983b9fd8a84SMichal Kazior /* VHT-SIG-A1 in info2, VHT-SIG-A2 in info3 984d6dfe25cSMarcin Rokicki * TODO check this 985d6dfe25cSMarcin Rokicki */ 986b9fd8a84SMichal Kazior bw = info2 & 3; 987b9fd8a84SMichal Kazior sgi = info3 & 1; 9886986fdd6SMichal Kazior group_id = (info2 >> 4) & 0x3F; 9896986fdd6SMichal Kazior 9906986fdd6SMichal Kazior if (GROUP_ID_IS_SU_MIMO(group_id)) { 9916986fdd6SMichal Kazior mcs = (info3 >> 4) & 0x0F; 9926986fdd6SMichal Kazior nss = ((info2 >> 10) & 0x07) + 1; 9936986fdd6SMichal Kazior } else { 9946986fdd6SMichal Kazior /* Hardware doesn't decode VHT-SIG-B into Rx descriptor 9956986fdd6SMichal Kazior * so it's impossible to decode MCS. Also since 9966986fdd6SMichal Kazior * firmware consumes Group Id Management frames host 9976986fdd6SMichal Kazior * has no knowledge regarding group/user position 9986986fdd6SMichal Kazior * mapping so it's impossible to pick the correct Nsts 9996986fdd6SMichal Kazior * from VHT-SIG-A1. 10006986fdd6SMichal Kazior * 10016986fdd6SMichal Kazior * Bandwidth and SGI are valid so report the rateinfo 10026986fdd6SMichal Kazior * on best-effort basis. 10036986fdd6SMichal Kazior */ 10046986fdd6SMichal Kazior mcs = 0; 10056986fdd6SMichal Kazior nss = 1; 10066986fdd6SMichal Kazior } 100773539b40SJanusz Dziedzic 10086ccea107SManikanta Pubbisetty if (mcs > 0x09) { 10096ccea107SManikanta Pubbisetty ath10k_warn(ar, "invalid MCS received %u\n", mcs); 10106ccea107SManikanta Pubbisetty ath10k_warn(ar, "rxd %08x mpdu start %08x %08x msdu start %08x %08x ppdu start %08x %08x %08x %08x %08x\n", 10116ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->attention.flags), 10126ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->mpdu_start.info0), 10136ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->mpdu_start.info1), 10146ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->msdu_start.common.info0), 10156ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->msdu_start.common.info1), 10166ccea107SManikanta Pubbisetty rxd->ppdu_start.info0, 10176ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->ppdu_start.info1), 10186ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->ppdu_start.info2), 10196ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->ppdu_start.info3), 10206ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->ppdu_start.info4)); 10216ccea107SManikanta Pubbisetty 10226ccea107SManikanta Pubbisetty ath10k_warn(ar, "msdu end %08x mpdu end %08x\n", 10236ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->msdu_end.common.info0), 10246ccea107SManikanta Pubbisetty __le32_to_cpu(rxd->mpdu_end.info0)); 10256ccea107SManikanta Pubbisetty 10266ccea107SManikanta Pubbisetty ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, 10276ccea107SManikanta Pubbisetty "rx desc msdu payload: ", 10286ccea107SManikanta Pubbisetty rxd->msdu_payload, 50); 10296ccea107SManikanta Pubbisetty } 10306ccea107SManikanta Pubbisetty 103173539b40SJanusz Dziedzic status->rate_idx = mcs; 10328613c948SJohannes Berg status->nss = nss; 103373539b40SJanusz Dziedzic 103473539b40SJanusz Dziedzic if (sgi) 10357fdd69c5SJohannes Berg status->enc_flags |= RX_ENC_FLAG_SHORT_GI; 103673539b40SJanusz Dziedzic 103791493e8eSChristian Lamparter status->bw = ath10k_bw_to_mac80211_bw(bw); 1038da6a4352SJohannes Berg status->encoding = RX_ENC_VHT; 103973539b40SJanusz Dziedzic break; 104073539b40SJanusz Dziedzic default: 104173539b40SJanusz Dziedzic break; 104273539b40SJanusz Dziedzic } 104373539b40SJanusz Dziedzic } 104473539b40SJanusz Dziedzic 1045500ff9f9SMichal Kazior static struct ieee80211_channel * 1046500ff9f9SMichal Kazior ath10k_htt_rx_h_peer_channel(struct ath10k *ar, struct htt_rx_desc *rxd) 1047500ff9f9SMichal Kazior { 1048500ff9f9SMichal Kazior struct ath10k_peer *peer; 1049500ff9f9SMichal Kazior struct ath10k_vif *arvif; 1050500ff9f9SMichal Kazior struct cfg80211_chan_def def; 1051500ff9f9SMichal Kazior u16 peer_id; 1052500ff9f9SMichal Kazior 1053500ff9f9SMichal Kazior lockdep_assert_held(&ar->data_lock); 1054500ff9f9SMichal Kazior 1055500ff9f9SMichal Kazior if (!rxd) 1056500ff9f9SMichal Kazior return NULL; 1057500ff9f9SMichal Kazior 1058500ff9f9SMichal Kazior if (rxd->attention.flags & 1059500ff9f9SMichal Kazior __cpu_to_le32(RX_ATTENTION_FLAGS_PEER_IDX_INVALID)) 1060500ff9f9SMichal Kazior return NULL; 1061500ff9f9SMichal Kazior 10621f5dbfbbSPeter Oh if (!(rxd->msdu_end.common.info0 & 1063500ff9f9SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU))) 1064500ff9f9SMichal Kazior return NULL; 1065500ff9f9SMichal Kazior 1066500ff9f9SMichal Kazior peer_id = MS(__le32_to_cpu(rxd->mpdu_start.info0), 1067500ff9f9SMichal Kazior RX_MPDU_START_INFO0_PEER_IDX); 1068500ff9f9SMichal Kazior 1069500ff9f9SMichal Kazior peer = ath10k_peer_find_by_id(ar, peer_id); 1070500ff9f9SMichal Kazior if (!peer) 1071500ff9f9SMichal Kazior return NULL; 1072500ff9f9SMichal Kazior 1073500ff9f9SMichal Kazior arvif = ath10k_get_arvif(ar, peer->vdev_id); 1074500ff9f9SMichal Kazior if (WARN_ON_ONCE(!arvif)) 1075500ff9f9SMichal Kazior return NULL; 1076500ff9f9SMichal Kazior 1077569fba2cSMohammed Shafi Shajakhan if (ath10k_mac_vif_chan(arvif->vif, &def)) 1078500ff9f9SMichal Kazior return NULL; 1079500ff9f9SMichal Kazior 1080500ff9f9SMichal Kazior return def.chan; 1081500ff9f9SMichal Kazior } 1082500ff9f9SMichal Kazior 1083500ff9f9SMichal Kazior static struct ieee80211_channel * 1084500ff9f9SMichal Kazior ath10k_htt_rx_h_vdev_channel(struct ath10k *ar, u32 vdev_id) 1085500ff9f9SMichal Kazior { 1086500ff9f9SMichal Kazior struct ath10k_vif *arvif; 1087500ff9f9SMichal Kazior struct cfg80211_chan_def def; 1088500ff9f9SMichal Kazior 1089500ff9f9SMichal Kazior lockdep_assert_held(&ar->data_lock); 1090500ff9f9SMichal Kazior 1091500ff9f9SMichal Kazior list_for_each_entry(arvif, &ar->arvifs, list) { 1092500ff9f9SMichal Kazior if (arvif->vdev_id == vdev_id && 1093500ff9f9SMichal Kazior ath10k_mac_vif_chan(arvif->vif, &def) == 0) 1094500ff9f9SMichal Kazior return def.chan; 1095500ff9f9SMichal Kazior } 1096500ff9f9SMichal Kazior 1097500ff9f9SMichal Kazior return NULL; 1098500ff9f9SMichal Kazior } 1099500ff9f9SMichal Kazior 1100500ff9f9SMichal Kazior static void 1101500ff9f9SMichal Kazior ath10k_htt_rx_h_any_chan_iter(struct ieee80211_hw *hw, 1102500ff9f9SMichal Kazior struct ieee80211_chanctx_conf *conf, 1103500ff9f9SMichal Kazior void *data) 1104500ff9f9SMichal Kazior { 1105500ff9f9SMichal Kazior struct cfg80211_chan_def *def = data; 1106500ff9f9SMichal Kazior 1107500ff9f9SMichal Kazior *def = conf->def; 1108500ff9f9SMichal Kazior } 1109500ff9f9SMichal Kazior 1110500ff9f9SMichal Kazior static struct ieee80211_channel * 1111500ff9f9SMichal Kazior ath10k_htt_rx_h_any_channel(struct ath10k *ar) 1112500ff9f9SMichal Kazior { 1113500ff9f9SMichal Kazior struct cfg80211_chan_def def = {}; 1114500ff9f9SMichal Kazior 1115500ff9f9SMichal Kazior ieee80211_iter_chan_contexts_atomic(ar->hw, 1116500ff9f9SMichal Kazior ath10k_htt_rx_h_any_chan_iter, 1117500ff9f9SMichal Kazior &def); 1118500ff9f9SMichal Kazior 1119500ff9f9SMichal Kazior return def.chan; 1120500ff9f9SMichal Kazior } 1121500ff9f9SMichal Kazior 112236653f05SJanusz Dziedzic static bool ath10k_htt_rx_h_channel(struct ath10k *ar, 1123500ff9f9SMichal Kazior struct ieee80211_rx_status *status, 1124500ff9f9SMichal Kazior struct htt_rx_desc *rxd, 1125500ff9f9SMichal Kazior u32 vdev_id) 112636653f05SJanusz Dziedzic { 112736653f05SJanusz Dziedzic struct ieee80211_channel *ch; 112836653f05SJanusz Dziedzic 112936653f05SJanusz Dziedzic spin_lock_bh(&ar->data_lock); 113036653f05SJanusz Dziedzic ch = ar->scan_channel; 113136653f05SJanusz Dziedzic if (!ch) 113236653f05SJanusz Dziedzic ch = ar->rx_channel; 1133500ff9f9SMichal Kazior if (!ch) 1134500ff9f9SMichal Kazior ch = ath10k_htt_rx_h_peer_channel(ar, rxd); 1135500ff9f9SMichal Kazior if (!ch) 1136500ff9f9SMichal Kazior ch = ath10k_htt_rx_h_vdev_channel(ar, vdev_id); 1137500ff9f9SMichal Kazior if (!ch) 1138500ff9f9SMichal Kazior ch = ath10k_htt_rx_h_any_channel(ar); 11392ce9b25cSRajkumar Manoharan if (!ch) 11402ce9b25cSRajkumar Manoharan ch = ar->tgt_oper_chan; 114136653f05SJanusz Dziedzic spin_unlock_bh(&ar->data_lock); 114236653f05SJanusz Dziedzic 114336653f05SJanusz Dziedzic if (!ch) 114436653f05SJanusz Dziedzic return false; 114536653f05SJanusz Dziedzic 114636653f05SJanusz Dziedzic status->band = ch->band; 114736653f05SJanusz Dziedzic status->freq = ch->center_freq; 114836653f05SJanusz Dziedzic 114936653f05SJanusz Dziedzic return true; 115036653f05SJanusz Dziedzic } 115136653f05SJanusz Dziedzic 1152b9fd8a84SMichal Kazior static void ath10k_htt_rx_h_signal(struct ath10k *ar, 1153b9fd8a84SMichal Kazior struct ieee80211_rx_status *status, 1154b9fd8a84SMichal Kazior struct htt_rx_desc *rxd) 1155b9fd8a84SMichal Kazior { 11568241253dSNorik Dzhandzhapanyan int i; 11578241253dSNorik Dzhandzhapanyan 11588241253dSNorik Dzhandzhapanyan for (i = 0; i < IEEE80211_MAX_CHAINS ; i++) { 11598241253dSNorik Dzhandzhapanyan status->chains &= ~BIT(i); 11608241253dSNorik Dzhandzhapanyan 11618241253dSNorik Dzhandzhapanyan if (rxd->ppdu_start.rssi_chains[i].pri20_mhz != 0x80) { 11628241253dSNorik Dzhandzhapanyan status->chain_signal[i] = ATH10K_DEFAULT_NOISE_FLOOR + 11638241253dSNorik Dzhandzhapanyan rxd->ppdu_start.rssi_chains[i].pri20_mhz; 11648241253dSNorik Dzhandzhapanyan 11658241253dSNorik Dzhandzhapanyan status->chains |= BIT(i); 11668241253dSNorik Dzhandzhapanyan } 11678241253dSNorik Dzhandzhapanyan } 11688241253dSNorik Dzhandzhapanyan 1169b9fd8a84SMichal Kazior /* FIXME: Get real NF */ 1170b9fd8a84SMichal Kazior status->signal = ATH10K_DEFAULT_NOISE_FLOOR + 1171b9fd8a84SMichal Kazior rxd->ppdu_start.rssi_comb; 1172b9fd8a84SMichal Kazior status->flag &= ~RX_FLAG_NO_SIGNAL_VAL; 1173b9fd8a84SMichal Kazior } 1174b9fd8a84SMichal Kazior 1175b9fd8a84SMichal Kazior static void ath10k_htt_rx_h_mactime(struct ath10k *ar, 1176b9fd8a84SMichal Kazior struct ieee80211_rx_status *status, 1177b9fd8a84SMichal Kazior struct htt_rx_desc *rxd) 1178b9fd8a84SMichal Kazior { 1179b9fd8a84SMichal Kazior /* FIXME: TSF is known only at the end of PPDU, in the last MPDU. This 1180b9fd8a84SMichal Kazior * means all prior MSDUs in a PPDU are reported to mac80211 without the 1181b9fd8a84SMichal Kazior * TSF. Is it worth holding frames until end of PPDU is known? 1182b9fd8a84SMichal Kazior * 1183b9fd8a84SMichal Kazior * FIXME: Can we get/compute 64bit TSF? 1184b9fd8a84SMichal Kazior */ 11853ec79e3aSMichal Kazior status->mactime = __le32_to_cpu(rxd->ppdu_end.common.tsf_timestamp); 1186b9fd8a84SMichal Kazior status->flag |= RX_FLAG_MACTIME_END; 1187b9fd8a84SMichal Kazior } 1188b9fd8a84SMichal Kazior 1189b9fd8a84SMichal Kazior static void ath10k_htt_rx_h_ppdu(struct ath10k *ar, 1190b9fd8a84SMichal Kazior struct sk_buff_head *amsdu, 1191500ff9f9SMichal Kazior struct ieee80211_rx_status *status, 1192500ff9f9SMichal Kazior u32 vdev_id) 1193b9fd8a84SMichal Kazior { 1194b9fd8a84SMichal Kazior struct sk_buff *first; 1195b9fd8a84SMichal Kazior struct htt_rx_desc *rxd; 1196b9fd8a84SMichal Kazior bool is_first_ppdu; 1197b9fd8a84SMichal Kazior bool is_last_ppdu; 1198b9fd8a84SMichal Kazior 1199b9fd8a84SMichal Kazior if (skb_queue_empty(amsdu)) 1200b9fd8a84SMichal Kazior return; 1201b9fd8a84SMichal Kazior 1202b9fd8a84SMichal Kazior first = skb_peek(amsdu); 1203b9fd8a84SMichal Kazior rxd = (void *)first->data - sizeof(*rxd); 1204b9fd8a84SMichal Kazior 1205b9fd8a84SMichal Kazior is_first_ppdu = !!(rxd->attention.flags & 1206b9fd8a84SMichal Kazior __cpu_to_le32(RX_ATTENTION_FLAGS_FIRST_MPDU)); 1207b9fd8a84SMichal Kazior is_last_ppdu = !!(rxd->attention.flags & 1208b9fd8a84SMichal Kazior __cpu_to_le32(RX_ATTENTION_FLAGS_LAST_MPDU)); 1209b9fd8a84SMichal Kazior 1210b9fd8a84SMichal Kazior if (is_first_ppdu) { 1211b9fd8a84SMichal Kazior /* New PPDU starts so clear out the old per-PPDU status. */ 1212b9fd8a84SMichal Kazior status->freq = 0; 1213b9fd8a84SMichal Kazior status->rate_idx = 0; 12148613c948SJohannes Berg status->nss = 0; 1215da6a4352SJohannes Berg status->encoding = RX_ENC_LEGACY; 1216da6a4352SJohannes Berg status->bw = RATE_INFO_BW_20; 121747cc0ca9SMatthias Frei 12187fdd69c5SJohannes Berg status->flag &= ~RX_FLAG_MACTIME_END; 1219b9fd8a84SMichal Kazior status->flag |= RX_FLAG_NO_SIGNAL_VAL; 1220b9fd8a84SMichal Kazior 122147cc0ca9SMatthias Frei status->flag &= ~(RX_FLAG_AMPDU_IS_LAST); 122247cc0ca9SMatthias Frei status->flag |= RX_FLAG_AMPDU_DETAILS | RX_FLAG_AMPDU_LAST_KNOWN; 122347cc0ca9SMatthias Frei status->ampdu_reference = ar->ampdu_reference; 122447cc0ca9SMatthias Frei 1225b9fd8a84SMichal Kazior ath10k_htt_rx_h_signal(ar, status, rxd); 1226500ff9f9SMichal Kazior ath10k_htt_rx_h_channel(ar, status, rxd, vdev_id); 1227b9fd8a84SMichal Kazior ath10k_htt_rx_h_rates(ar, status, rxd); 1228b9fd8a84SMichal Kazior } 1229b9fd8a84SMichal Kazior 123047cc0ca9SMatthias Frei if (is_last_ppdu) { 1231b9fd8a84SMichal Kazior ath10k_htt_rx_h_mactime(ar, status, rxd); 123247cc0ca9SMatthias Frei 123347cc0ca9SMatthias Frei /* set ampdu last segment flag */ 123447cc0ca9SMatthias Frei status->flag |= RX_FLAG_AMPDU_IS_LAST; 123547cc0ca9SMatthias Frei ar->ampdu_reference++; 123647cc0ca9SMatthias Frei } 1237b9fd8a84SMichal Kazior } 1238b9fd8a84SMichal Kazior 123976f5329aSJanusz Dziedzic static const char * const tid_to_ac[] = { 124076f5329aSJanusz Dziedzic "BE", 124176f5329aSJanusz Dziedzic "BK", 124276f5329aSJanusz Dziedzic "BK", 124376f5329aSJanusz Dziedzic "BE", 124476f5329aSJanusz Dziedzic "VI", 124576f5329aSJanusz Dziedzic "VI", 124676f5329aSJanusz Dziedzic "VO", 124776f5329aSJanusz Dziedzic "VO", 124876f5329aSJanusz Dziedzic }; 124976f5329aSJanusz Dziedzic 125076f5329aSJanusz Dziedzic static char *ath10k_get_tid(struct ieee80211_hdr *hdr, char *out, size_t size) 125176f5329aSJanusz Dziedzic { 125276f5329aSJanusz Dziedzic u8 *qc; 125376f5329aSJanusz Dziedzic int tid; 125476f5329aSJanusz Dziedzic 125576f5329aSJanusz Dziedzic if (!ieee80211_is_data_qos(hdr->frame_control)) 125676f5329aSJanusz Dziedzic return ""; 125776f5329aSJanusz Dziedzic 125876f5329aSJanusz Dziedzic qc = ieee80211_get_qos_ctl(hdr); 125976f5329aSJanusz Dziedzic tid = *qc & IEEE80211_QOS_CTL_TID_MASK; 126076f5329aSJanusz Dziedzic if (tid < 8) 126176f5329aSJanusz Dziedzic snprintf(out, size, "tid %d (%s)", tid, tid_to_ac[tid]); 126276f5329aSJanusz Dziedzic else 126376f5329aSJanusz Dziedzic snprintf(out, size, "tid %d", tid); 126476f5329aSJanusz Dziedzic 126576f5329aSJanusz Dziedzic return out; 126676f5329aSJanusz Dziedzic } 126776f5329aSJanusz Dziedzic 1268deba1b9eSRajkumar Manoharan static void ath10k_htt_rx_h_queue_msdu(struct ath10k *ar, 126985f6d7cfSJanusz Dziedzic struct ieee80211_rx_status *rx_status, 127085f6d7cfSJanusz Dziedzic struct sk_buff *skb) 127173539b40SJanusz Dziedzic { 127273539b40SJanusz Dziedzic struct ieee80211_rx_status *status; 1273deba1b9eSRajkumar Manoharan 1274deba1b9eSRajkumar Manoharan status = IEEE80211_SKB_RXCB(skb); 1275deba1b9eSRajkumar Manoharan *status = *rx_status; 1276deba1b9eSRajkumar Manoharan 127762652555SBob Copeland skb_queue_tail(&ar->htt.rx_msdus_q, skb); 1278deba1b9eSRajkumar Manoharan } 1279deba1b9eSRajkumar Manoharan 1280deba1b9eSRajkumar Manoharan static void ath10k_process_rx(struct ath10k *ar, struct sk_buff *skb) 1281deba1b9eSRajkumar Manoharan { 1282deba1b9eSRajkumar Manoharan struct ieee80211_rx_status *status; 128376f5329aSJanusz Dziedzic struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 128476f5329aSJanusz Dziedzic char tid[32]; 128573539b40SJanusz Dziedzic 128685f6d7cfSJanusz Dziedzic status = IEEE80211_SKB_RXCB(skb); 128773539b40SJanusz Dziedzic 12887aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_DATA, 12897fdd69c5SJohannes Berg "rx skb %pK len %u peer %pM %s %s sn %u %s%s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %i mic-err %i amsdu-more %i\n", 129085f6d7cfSJanusz Dziedzic skb, 129185f6d7cfSJanusz Dziedzic skb->len, 129276f5329aSJanusz Dziedzic ieee80211_get_SA(hdr), 129376f5329aSJanusz Dziedzic ath10k_get_tid(hdr, tid, sizeof(tid)), 129476f5329aSJanusz Dziedzic is_multicast_ether_addr(ieee80211_get_DA(hdr)) ? 129576f5329aSJanusz Dziedzic "mcast" : "ucast", 129676f5329aSJanusz Dziedzic (__le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ) >> 4, 1297da6a4352SJohannes Berg (status->encoding == RX_ENC_LEGACY) ? "legacy" : "", 1298da6a4352SJohannes Berg (status->encoding == RX_ENC_HT) ? "ht" : "", 1299da6a4352SJohannes Berg (status->encoding == RX_ENC_VHT) ? "vht" : "", 1300da6a4352SJohannes Berg (status->bw == RATE_INFO_BW_40) ? "40" : "", 1301da6a4352SJohannes Berg (status->bw == RATE_INFO_BW_80) ? "80" : "", 1302da6a4352SJohannes Berg (status->bw == RATE_INFO_BW_160) ? "160" : "", 13037fdd69c5SJohannes Berg status->enc_flags & RX_ENC_FLAG_SHORT_GI ? "sgi " : "", 130473539b40SJanusz Dziedzic status->rate_idx, 13058613c948SJohannes Berg status->nss, 130673539b40SJanusz Dziedzic status->freq, 130787326c97SJanusz Dziedzic status->band, status->flag, 130878433f96SJanusz Dziedzic !!(status->flag & RX_FLAG_FAILED_FCS_CRC), 130976f5329aSJanusz Dziedzic !!(status->flag & RX_FLAG_MMIC_ERROR), 131076f5329aSJanusz Dziedzic !!(status->flag & RX_FLAG_AMSDU_MORE)); 13117aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ", 131285f6d7cfSJanusz Dziedzic skb->data, skb->len); 13135ce8e7fdSRajkumar Manoharan trace_ath10k_rx_hdr(ar, skb->data, skb->len); 13145ce8e7fdSRajkumar Manoharan trace_ath10k_rx_payload(ar, skb->data, skb->len); 131573539b40SJanusz Dziedzic 13163c97f5deSRajkumar Manoharan ieee80211_rx_napi(ar->hw, NULL, skb, &ar->napi); 131773539b40SJanusz Dziedzic } 131873539b40SJanusz Dziedzic 131948f4ca34SMichal Kazior static int ath10k_htt_rx_nwifi_hdrlen(struct ath10k *ar, 132048f4ca34SMichal Kazior struct ieee80211_hdr *hdr) 1321d960c369SMichal Kazior { 132248f4ca34SMichal Kazior int len = ieee80211_hdrlen(hdr->frame_control); 132348f4ca34SMichal Kazior 132448f4ca34SMichal Kazior if (!test_bit(ATH10K_FW_FEATURE_NO_NWIFI_DECAP_4ADDR_PADDING, 1325c4cdf753SKalle Valo ar->running_fw->fw_file.fw_features)) 132648f4ca34SMichal Kazior len = round_up(len, 4); 132748f4ca34SMichal Kazior 132848f4ca34SMichal Kazior return len; 1329d960c369SMichal Kazior } 1330d960c369SMichal Kazior 1331581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_raw(struct ath10k *ar, 1332581c25f8SMichal Kazior struct sk_buff *msdu, 1333581c25f8SMichal Kazior struct ieee80211_rx_status *status, 1334581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype, 1335a2864772SBhagavathi Perumal S bool is_decrypted, 1336a2864772SBhagavathi Perumal S const u8 first_hdr[64]) 13375e3dd157SKalle Valo { 1338f6dc2095SMichal Kazior struct ieee80211_hdr *hdr; 1339581c25f8SMichal Kazior struct htt_rx_desc *rxd; 1340581c25f8SMichal Kazior size_t hdr_len; 1341581c25f8SMichal Kazior size_t crypto_len; 1342581c25f8SMichal Kazior bool is_first; 1343581c25f8SMichal Kazior bool is_last; 1344a2864772SBhagavathi Perumal S bool msdu_limit_err; 1345a2864772SBhagavathi Perumal S int bytes_aligned = ar->hw_params.decap_align_bytes; 1346a2864772SBhagavathi Perumal S u8 *qos; 13475e3dd157SKalle Valo 1348581c25f8SMichal Kazior rxd = (void *)msdu->data - sizeof(*rxd); 13491f5dbfbbSPeter Oh is_first = !!(rxd->msdu_end.common.info0 & 1350581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)); 13511f5dbfbbSPeter Oh is_last = !!(rxd->msdu_end.common.info0 & 1352581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU)); 13539aa505d2SMichal Kazior 1354581c25f8SMichal Kazior /* Delivered decapped frame: 1355581c25f8SMichal Kazior * [802.11 header] 1356581c25f8SMichal Kazior * [crypto param] <-- can be trimmed if !fcs_err && 1357581c25f8SMichal Kazior * !decrypt_err && !peer_idx_invalid 1358581c25f8SMichal Kazior * [amsdu header] <-- only if A-MSDU 1359581c25f8SMichal Kazior * [rfc1042/llc] 1360581c25f8SMichal Kazior * [payload] 1361581c25f8SMichal Kazior * [FCS] <-- at end, needs to be trimmed 1362581c25f8SMichal Kazior */ 13635e3dd157SKalle Valo 1364a2864772SBhagavathi Perumal S /* Some hardwares(QCA99x0 variants) limit number of msdus in a-msdu when 1365a2864772SBhagavathi Perumal S * deaggregate, so that unwanted MSDU-deaggregation is avoided for 1366a2864772SBhagavathi Perumal S * error packets. If limit exceeds, hw sends all remaining MSDUs as 1367a2864772SBhagavathi Perumal S * a single last MSDU with this msdu limit error set. 1368a2864772SBhagavathi Perumal S */ 1369a2864772SBhagavathi Perumal S msdu_limit_err = ath10k_rx_desc_msdu_limit_error(&ar->hw_params, rxd); 1370a2864772SBhagavathi Perumal S 1371a2864772SBhagavathi Perumal S /* If MSDU limit error happens, then don't warn on, the partial raw MSDU 1372a2864772SBhagavathi Perumal S * without first MSDU is expected in that case, and handled later here. 1373a2864772SBhagavathi Perumal S */ 1374581c25f8SMichal Kazior /* This probably shouldn't happen but warn just in case */ 1375a2864772SBhagavathi Perumal S if (WARN_ON_ONCE(!is_first && !msdu_limit_err)) 1376581c25f8SMichal Kazior return; 1377581c25f8SMichal Kazior 1378581c25f8SMichal Kazior /* This probably shouldn't happen but warn just in case */ 1379a2864772SBhagavathi Perumal S if (WARN_ON_ONCE(!(is_first && is_last) && !msdu_limit_err)) 1380581c25f8SMichal Kazior return; 1381581c25f8SMichal Kazior 1382581c25f8SMichal Kazior skb_trim(msdu, msdu->len - FCS_LEN); 1383581c25f8SMichal Kazior 1384a2864772SBhagavathi Perumal S /* Push original 80211 header */ 1385a2864772SBhagavathi Perumal S if (unlikely(msdu_limit_err)) { 1386a2864772SBhagavathi Perumal S hdr = (struct ieee80211_hdr *)first_hdr; 1387a2864772SBhagavathi Perumal S hdr_len = ieee80211_hdrlen(hdr->frame_control); 1388a2864772SBhagavathi Perumal S crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype); 1389a2864772SBhagavathi Perumal S 1390a2864772SBhagavathi Perumal S if (ieee80211_is_data_qos(hdr->frame_control)) { 1391a2864772SBhagavathi Perumal S qos = ieee80211_get_qos_ctl(hdr); 1392a2864772SBhagavathi Perumal S qos[0] |= IEEE80211_QOS_CTL_A_MSDU_PRESENT; 1393a2864772SBhagavathi Perumal S } 1394a2864772SBhagavathi Perumal S 1395a2864772SBhagavathi Perumal S if (crypto_len) 1396a2864772SBhagavathi Perumal S memcpy(skb_push(msdu, crypto_len), 1397a2864772SBhagavathi Perumal S (void *)hdr + round_up(hdr_len, bytes_aligned), 1398a2864772SBhagavathi Perumal S crypto_len); 1399a2864772SBhagavathi Perumal S 1400a2864772SBhagavathi Perumal S memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); 1401a2864772SBhagavathi Perumal S } 1402a2864772SBhagavathi Perumal S 1403581c25f8SMichal Kazior /* In most cases this will be true for sniffed frames. It makes sense 1404ccec9038SDavid Liu * to deliver them as-is without stripping the crypto param. This is 1405ccec9038SDavid Liu * necessary for software based decryption. 1406581c25f8SMichal Kazior * 1407581c25f8SMichal Kazior * If there's no error then the frame is decrypted. At least that is 1408581c25f8SMichal Kazior * the case for frames that come in via fragmented rx indication. 1409581c25f8SMichal Kazior */ 1410581c25f8SMichal Kazior if (!is_decrypted) 1411581c25f8SMichal Kazior return; 1412581c25f8SMichal Kazior 1413581c25f8SMichal Kazior /* The payload is decrypted so strip crypto params. Start from tail 1414581c25f8SMichal Kazior * since hdr is used to compute some stuff. 1415581c25f8SMichal Kazior */ 1416581c25f8SMichal Kazior 1417581c25f8SMichal Kazior hdr = (void *)msdu->data; 1418581c25f8SMichal Kazior 1419581c25f8SMichal Kazior /* Tail */ 14207eccb738SVasanthakumar Thiagarajan if (status->flag & RX_FLAG_IV_STRIPPED) { 142160549cabSGrzegorz Bajorski skb_trim(msdu, msdu->len - 1422307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_mic_len(ar, enctype)); 1423307aeb31SVasanthakumar Thiagarajan 1424307aeb31SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len - 1425307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_icv_len(ar, enctype)); 14267eccb738SVasanthakumar Thiagarajan } else { 14277eccb738SVasanthakumar Thiagarajan /* MIC */ 1428307aeb31SVasanthakumar Thiagarajan if (status->flag & RX_FLAG_MIC_STRIPPED) 1429307aeb31SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len - 1430307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_mic_len(ar, enctype)); 14317eccb738SVasanthakumar Thiagarajan 14327eccb738SVasanthakumar Thiagarajan /* ICV */ 1433307aeb31SVasanthakumar Thiagarajan if (status->flag & RX_FLAG_ICV_STRIPPED) 14347eccb738SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len - 1435307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_icv_len(ar, enctype)); 14367eccb738SVasanthakumar Thiagarajan } 1437581c25f8SMichal Kazior 1438581c25f8SMichal Kazior /* MMIC */ 143960549cabSGrzegorz Bajorski if ((status->flag & RX_FLAG_MMIC_STRIPPED) && 144060549cabSGrzegorz Bajorski !ieee80211_has_morefrags(hdr->frame_control) && 1441581c25f8SMichal Kazior enctype == HTT_RX_MPDU_ENCRYPT_TKIP_WPA) 1442307aeb31SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len - MICHAEL_MIC_LEN); 1443581c25f8SMichal Kazior 1444581c25f8SMichal Kazior /* Head */ 144560549cabSGrzegorz Bajorski if (status->flag & RX_FLAG_IV_STRIPPED) { 1446f6dc2095SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control); 1447581c25f8SMichal Kazior crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype); 14485e3dd157SKalle Valo 1449581c25f8SMichal Kazior memmove((void *)msdu->data + crypto_len, 1450581c25f8SMichal Kazior (void *)msdu->data, hdr_len); 1451581c25f8SMichal Kazior skb_pull(msdu, crypto_len); 14525e3dd157SKalle Valo } 145360549cabSGrzegorz Bajorski } 14545e3dd157SKalle Valo 1455581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar, 1456581c25f8SMichal Kazior struct sk_buff *msdu, 1457581c25f8SMichal Kazior struct ieee80211_rx_status *status, 14587eccb738SVasanthakumar Thiagarajan const u8 first_hdr[64], 14597eccb738SVasanthakumar Thiagarajan enum htt_rx_mpdu_encrypt_type enctype) 1460581c25f8SMichal Kazior { 1461581c25f8SMichal Kazior struct ieee80211_hdr *hdr; 14629e19e132SVasanthakumar Thiagarajan struct htt_rx_desc *rxd; 1463581c25f8SMichal Kazior size_t hdr_len; 1464581c25f8SMichal Kazior u8 da[ETH_ALEN]; 1465581c25f8SMichal Kazior u8 sa[ETH_ALEN]; 14669e19e132SVasanthakumar Thiagarajan int l3_pad_bytes; 14677eccb738SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes; 1468581c25f8SMichal Kazior 1469581c25f8SMichal Kazior /* Delivered decapped frame: 1470581c25f8SMichal Kazior * [nwifi 802.11 header] <-- replaced with 802.11 hdr 1471581c25f8SMichal Kazior * [rfc1042/llc] 1472581c25f8SMichal Kazior * 1473581c25f8SMichal Kazior * Note: The nwifi header doesn't have QoS Control and is 1474581c25f8SMichal Kazior * (always?) a 3addr frame. 1475581c25f8SMichal Kazior * 1476581c25f8SMichal Kazior * Note2: There's no A-MSDU subframe header. Even if it's part 1477581c25f8SMichal Kazior * of an A-MSDU. 1478581c25f8SMichal Kazior */ 1479581c25f8SMichal Kazior 148072bdeb86SMichal Kazior /* pull decapped header and copy SA & DA */ 14819e19e132SVasanthakumar Thiagarajan rxd = (void *)msdu->data - sizeof(*rxd); 14829e19e132SVasanthakumar Thiagarajan 14839e19e132SVasanthakumar Thiagarajan l3_pad_bytes = ath10k_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd); 14849e19e132SVasanthakumar Thiagarajan skb_put(msdu, l3_pad_bytes); 14859e19e132SVasanthakumar Thiagarajan 14869e19e132SVasanthakumar Thiagarajan hdr = (struct ieee80211_hdr *)(msdu->data + l3_pad_bytes); 1487b8d55fcaSYanbo Li 148848f4ca34SMichal Kazior hdr_len = ath10k_htt_rx_nwifi_hdrlen(ar, hdr); 1489b25f32cbSKalle Valo ether_addr_copy(da, ieee80211_get_DA(hdr)); 1490b25f32cbSKalle Valo ether_addr_copy(sa, ieee80211_get_SA(hdr)); 1491581c25f8SMichal Kazior skb_pull(msdu, hdr_len); 1492784f69d3SMichal Kazior 1493784f69d3SMichal Kazior /* push original 802.11 header */ 1494581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)first_hdr; 1495784f69d3SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control); 14967eccb738SVasanthakumar Thiagarajan 14977eccb738SVasanthakumar Thiagarajan if (!(status->flag & RX_FLAG_IV_STRIPPED)) { 14987eccb738SVasanthakumar Thiagarajan memcpy(skb_push(msdu, 14997eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)), 15007eccb738SVasanthakumar Thiagarajan (void *)hdr + round_up(hdr_len, bytes_aligned), 15017eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)); 15027eccb738SVasanthakumar Thiagarajan } 15037eccb738SVasanthakumar Thiagarajan 1504581c25f8SMichal Kazior memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); 1505784f69d3SMichal Kazior 150672bdeb86SMichal Kazior /* original 802.11 header has a different DA and in 150772bdeb86SMichal Kazior * case of 4addr it may also have different SA 150872bdeb86SMichal Kazior */ 1509581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)msdu->data; 1510b25f32cbSKalle Valo ether_addr_copy(ieee80211_get_DA(hdr), da); 1511b25f32cbSKalle Valo ether_addr_copy(ieee80211_get_SA(hdr), sa); 15125e3dd157SKalle Valo } 15135e3dd157SKalle Valo 1514581c25f8SMichal Kazior static void *ath10k_htt_rx_h_find_rfc1042(struct ath10k *ar, 1515581c25f8SMichal Kazior struct sk_buff *msdu, 1516581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype) 15175e3dd157SKalle Valo { 15185e3dd157SKalle Valo struct ieee80211_hdr *hdr; 1519581c25f8SMichal Kazior struct htt_rx_desc *rxd; 1520581c25f8SMichal Kazior size_t hdr_len, crypto_len; 1521e3fbf8d2SMichal Kazior void *rfc1042; 1522581c25f8SMichal Kazior bool is_first, is_last, is_amsdu; 15232f38c3c0SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes; 15245e3dd157SKalle Valo 1525581c25f8SMichal Kazior rxd = (void *)msdu->data - sizeof(*rxd); 1526581c25f8SMichal Kazior hdr = (void *)rxd->rx_hdr_status; 15275e3dd157SKalle Valo 15281f5dbfbbSPeter Oh is_first = !!(rxd->msdu_end.common.info0 & 1529581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)); 15301f5dbfbbSPeter Oh is_last = !!(rxd->msdu_end.common.info0 & 1531581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU)); 1532581c25f8SMichal Kazior is_amsdu = !(is_first && is_last); 1533e3fbf8d2SMichal Kazior 1534e3fbf8d2SMichal Kazior rfc1042 = hdr; 1535e3fbf8d2SMichal Kazior 1536581c25f8SMichal Kazior if (is_first) { 1537581c25f8SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control); 1538581c25f8SMichal Kazior crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype); 1539e3fbf8d2SMichal Kazior 15402f38c3c0SVasanthakumar Thiagarajan rfc1042 += round_up(hdr_len, bytes_aligned) + 15412f38c3c0SVasanthakumar Thiagarajan round_up(crypto_len, bytes_aligned); 15425e3dd157SKalle Valo } 15435e3dd157SKalle Valo 1544581c25f8SMichal Kazior if (is_amsdu) 1545581c25f8SMichal Kazior rfc1042 += sizeof(struct amsdu_subframe_hdr); 1546f6dc2095SMichal Kazior 1547581c25f8SMichal Kazior return rfc1042; 1548581c25f8SMichal Kazior } 1549581c25f8SMichal Kazior 1550581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar, 1551581c25f8SMichal Kazior struct sk_buff *msdu, 1552581c25f8SMichal Kazior struct ieee80211_rx_status *status, 1553581c25f8SMichal Kazior const u8 first_hdr[64], 1554581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype) 1555581c25f8SMichal Kazior { 1556581c25f8SMichal Kazior struct ieee80211_hdr *hdr; 1557581c25f8SMichal Kazior struct ethhdr *eth; 1558581c25f8SMichal Kazior size_t hdr_len; 1559581c25f8SMichal Kazior void *rfc1042; 1560581c25f8SMichal Kazior u8 da[ETH_ALEN]; 1561581c25f8SMichal Kazior u8 sa[ETH_ALEN]; 15629e19e132SVasanthakumar Thiagarajan int l3_pad_bytes; 15639e19e132SVasanthakumar Thiagarajan struct htt_rx_desc *rxd; 15647eccb738SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes; 1565581c25f8SMichal Kazior 1566581c25f8SMichal Kazior /* Delivered decapped frame: 1567581c25f8SMichal Kazior * [eth header] <-- replaced with 802.11 hdr & rfc1042/llc 1568581c25f8SMichal Kazior * [payload] 1569581c25f8SMichal Kazior */ 1570581c25f8SMichal Kazior 1571581c25f8SMichal Kazior rfc1042 = ath10k_htt_rx_h_find_rfc1042(ar, msdu, enctype); 1572581c25f8SMichal Kazior if (WARN_ON_ONCE(!rfc1042)) 1573581c25f8SMichal Kazior return; 1574581c25f8SMichal Kazior 15759e19e132SVasanthakumar Thiagarajan rxd = (void *)msdu->data - sizeof(*rxd); 15769e19e132SVasanthakumar Thiagarajan l3_pad_bytes = ath10k_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd); 15779e19e132SVasanthakumar Thiagarajan skb_put(msdu, l3_pad_bytes); 15789e19e132SVasanthakumar Thiagarajan skb_pull(msdu, l3_pad_bytes); 15799e19e132SVasanthakumar Thiagarajan 1580581c25f8SMichal Kazior /* pull decapped header and copy SA & DA */ 1581581c25f8SMichal Kazior eth = (struct ethhdr *)msdu->data; 1582581c25f8SMichal Kazior ether_addr_copy(da, eth->h_dest); 1583581c25f8SMichal Kazior ether_addr_copy(sa, eth->h_source); 1584581c25f8SMichal Kazior skb_pull(msdu, sizeof(struct ethhdr)); 1585581c25f8SMichal Kazior 1586581c25f8SMichal Kazior /* push rfc1042/llc/snap */ 1587581c25f8SMichal Kazior memcpy(skb_push(msdu, sizeof(struct rfc1042_hdr)), rfc1042, 1588581c25f8SMichal Kazior sizeof(struct rfc1042_hdr)); 1589581c25f8SMichal Kazior 1590581c25f8SMichal Kazior /* push original 802.11 header */ 1591581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)first_hdr; 1592581c25f8SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control); 15937eccb738SVasanthakumar Thiagarajan 15947eccb738SVasanthakumar Thiagarajan if (!(status->flag & RX_FLAG_IV_STRIPPED)) { 15957eccb738SVasanthakumar Thiagarajan memcpy(skb_push(msdu, 15967eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)), 15977eccb738SVasanthakumar Thiagarajan (void *)hdr + round_up(hdr_len, bytes_aligned), 15987eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)); 15997eccb738SVasanthakumar Thiagarajan } 16007eccb738SVasanthakumar Thiagarajan 1601581c25f8SMichal Kazior memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); 1602581c25f8SMichal Kazior 1603581c25f8SMichal Kazior /* original 802.11 header has a different DA and in 1604581c25f8SMichal Kazior * case of 4addr it may also have different SA 1605581c25f8SMichal Kazior */ 1606581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)msdu->data; 1607581c25f8SMichal Kazior ether_addr_copy(ieee80211_get_DA(hdr), da); 1608581c25f8SMichal Kazior ether_addr_copy(ieee80211_get_SA(hdr), sa); 1609581c25f8SMichal Kazior } 1610581c25f8SMichal Kazior 1611581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar, 1612581c25f8SMichal Kazior struct sk_buff *msdu, 1613581c25f8SMichal Kazior struct ieee80211_rx_status *status, 16147eccb738SVasanthakumar Thiagarajan const u8 first_hdr[64], 16157eccb738SVasanthakumar Thiagarajan enum htt_rx_mpdu_encrypt_type enctype) 1616581c25f8SMichal Kazior { 1617581c25f8SMichal Kazior struct ieee80211_hdr *hdr; 1618581c25f8SMichal Kazior size_t hdr_len; 16199e19e132SVasanthakumar Thiagarajan int l3_pad_bytes; 16209e19e132SVasanthakumar Thiagarajan struct htt_rx_desc *rxd; 16217eccb738SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes; 1622581c25f8SMichal Kazior 1623581c25f8SMichal Kazior /* Delivered decapped frame: 1624581c25f8SMichal Kazior * [amsdu header] <-- replaced with 802.11 hdr 1625581c25f8SMichal Kazior * [rfc1042/llc] 1626581c25f8SMichal Kazior * [payload] 1627581c25f8SMichal Kazior */ 1628581c25f8SMichal Kazior 16299e19e132SVasanthakumar Thiagarajan rxd = (void *)msdu->data - sizeof(*rxd); 16309e19e132SVasanthakumar Thiagarajan l3_pad_bytes = ath10k_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd); 16319e19e132SVasanthakumar Thiagarajan 16329e19e132SVasanthakumar Thiagarajan skb_put(msdu, l3_pad_bytes); 16339e19e132SVasanthakumar Thiagarajan skb_pull(msdu, sizeof(struct amsdu_subframe_hdr) + l3_pad_bytes); 1634581c25f8SMichal Kazior 1635581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)first_hdr; 1636581c25f8SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control); 16377eccb738SVasanthakumar Thiagarajan 16387eccb738SVasanthakumar Thiagarajan if (!(status->flag & RX_FLAG_IV_STRIPPED)) { 16397eccb738SVasanthakumar Thiagarajan memcpy(skb_push(msdu, 16407eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)), 16417eccb738SVasanthakumar Thiagarajan (void *)hdr + round_up(hdr_len, bytes_aligned), 16427eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)); 16437eccb738SVasanthakumar Thiagarajan } 16447eccb738SVasanthakumar Thiagarajan 1645581c25f8SMichal Kazior memcpy(skb_push(msdu, hdr_len), hdr, hdr_len); 1646581c25f8SMichal Kazior } 1647581c25f8SMichal Kazior 1648581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap(struct ath10k *ar, 1649581c25f8SMichal Kazior struct sk_buff *msdu, 1650581c25f8SMichal Kazior struct ieee80211_rx_status *status, 1651581c25f8SMichal Kazior u8 first_hdr[64], 1652581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype, 1653581c25f8SMichal Kazior bool is_decrypted) 1654581c25f8SMichal Kazior { 1655581c25f8SMichal Kazior struct htt_rx_desc *rxd; 1656581c25f8SMichal Kazior enum rx_msdu_decap_format decap; 1657581c25f8SMichal Kazior 1658581c25f8SMichal Kazior /* First msdu's decapped header: 1659581c25f8SMichal Kazior * [802.11 header] <-- padded to 4 bytes long 1660581c25f8SMichal Kazior * [crypto param] <-- padded to 4 bytes long 1661581c25f8SMichal Kazior * [amsdu header] <-- only if A-MSDU 1662581c25f8SMichal Kazior * [rfc1042/llc] 1663581c25f8SMichal Kazior * 1664581c25f8SMichal Kazior * Other (2nd, 3rd, ..) msdu's decapped header: 1665581c25f8SMichal Kazior * [amsdu header] <-- only if A-MSDU 1666581c25f8SMichal Kazior * [rfc1042/llc] 1667581c25f8SMichal Kazior */ 1668581c25f8SMichal Kazior 1669581c25f8SMichal Kazior rxd = (void *)msdu->data - sizeof(*rxd); 16701f5dbfbbSPeter Oh decap = MS(__le32_to_cpu(rxd->msdu_start.common.info1), 1671581c25f8SMichal Kazior RX_MSDU_START_INFO1_DECAP_FORMAT); 1672581c25f8SMichal Kazior 1673581c25f8SMichal Kazior switch (decap) { 1674581c25f8SMichal Kazior case RX_MSDU_DECAP_RAW: 1675581c25f8SMichal Kazior ath10k_htt_rx_h_undecap_raw(ar, msdu, status, enctype, 1676a2864772SBhagavathi Perumal S is_decrypted, first_hdr); 1677581c25f8SMichal Kazior break; 1678581c25f8SMichal Kazior case RX_MSDU_DECAP_NATIVE_WIFI: 16797eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_h_undecap_nwifi(ar, msdu, status, first_hdr, 16807eccb738SVasanthakumar Thiagarajan enctype); 1681581c25f8SMichal Kazior break; 1682581c25f8SMichal Kazior case RX_MSDU_DECAP_ETHERNET2_DIX: 1683581c25f8SMichal Kazior ath10k_htt_rx_h_undecap_eth(ar, msdu, status, first_hdr, enctype); 1684581c25f8SMichal Kazior break; 1685581c25f8SMichal Kazior case RX_MSDU_DECAP_8023_SNAP_LLC: 16867eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_h_undecap_snap(ar, msdu, status, first_hdr, 16877eccb738SVasanthakumar Thiagarajan enctype); 1688581c25f8SMichal Kazior break; 1689581c25f8SMichal Kazior } 16905e3dd157SKalle Valo } 16915e3dd157SKalle Valo 1692605f81aaSMichal Kazior static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb) 1693605f81aaSMichal Kazior { 1694605f81aaSMichal Kazior struct htt_rx_desc *rxd; 1695605f81aaSMichal Kazior u32 flags, info; 1696605f81aaSMichal Kazior bool is_ip4, is_ip6; 1697605f81aaSMichal Kazior bool is_tcp, is_udp; 1698605f81aaSMichal Kazior bool ip_csum_ok, tcpudp_csum_ok; 1699605f81aaSMichal Kazior 1700605f81aaSMichal Kazior rxd = (void *)skb->data - sizeof(*rxd); 1701605f81aaSMichal Kazior flags = __le32_to_cpu(rxd->attention.flags); 17021f5dbfbbSPeter Oh info = __le32_to_cpu(rxd->msdu_start.common.info1); 1703605f81aaSMichal Kazior 1704605f81aaSMichal Kazior is_ip4 = !!(info & RX_MSDU_START_INFO1_IPV4_PROTO); 1705605f81aaSMichal Kazior is_ip6 = !!(info & RX_MSDU_START_INFO1_IPV6_PROTO); 1706605f81aaSMichal Kazior is_tcp = !!(info & RX_MSDU_START_INFO1_TCP_PROTO); 1707605f81aaSMichal Kazior is_udp = !!(info & RX_MSDU_START_INFO1_UDP_PROTO); 1708605f81aaSMichal Kazior ip_csum_ok = !(flags & RX_ATTENTION_FLAGS_IP_CHKSUM_FAIL); 1709605f81aaSMichal Kazior tcpudp_csum_ok = !(flags & RX_ATTENTION_FLAGS_TCP_UDP_CHKSUM_FAIL); 1710605f81aaSMichal Kazior 1711605f81aaSMichal Kazior if (!is_ip4 && !is_ip6) 1712605f81aaSMichal Kazior return CHECKSUM_NONE; 1713605f81aaSMichal Kazior if (!is_tcp && !is_udp) 1714605f81aaSMichal Kazior return CHECKSUM_NONE; 1715605f81aaSMichal Kazior if (!ip_csum_ok) 1716605f81aaSMichal Kazior return CHECKSUM_NONE; 1717605f81aaSMichal Kazior if (!tcpudp_csum_ok) 1718605f81aaSMichal Kazior return CHECKSUM_NONE; 1719605f81aaSMichal Kazior 1720605f81aaSMichal Kazior return CHECKSUM_UNNECESSARY; 1721605f81aaSMichal Kazior } 1722605f81aaSMichal Kazior 1723581c25f8SMichal Kazior static void ath10k_htt_rx_h_csum_offload(struct sk_buff *msdu) 1724581c25f8SMichal Kazior { 1725581c25f8SMichal Kazior msdu->ip_summed = ath10k_htt_rx_get_csum_state(msdu); 1726581c25f8SMichal Kazior } 1727581c25f8SMichal Kazior 1728581c25f8SMichal Kazior static void ath10k_htt_rx_h_mpdu(struct ath10k *ar, 1729581c25f8SMichal Kazior struct sk_buff_head *amsdu, 17307eccb738SVasanthakumar Thiagarajan struct ieee80211_rx_status *status, 1731caee728aSVasanthakumar Thiagarajan bool fill_crypt_header, 1732caee728aSVasanthakumar Thiagarajan u8 *rx_hdr, 1733caee728aSVasanthakumar Thiagarajan enum ath10k_pkt_rx_err *err) 1734581c25f8SMichal Kazior { 1735581c25f8SMichal Kazior struct sk_buff *first; 1736581c25f8SMichal Kazior struct sk_buff *last; 1737581c25f8SMichal Kazior struct sk_buff *msdu; 1738581c25f8SMichal Kazior struct htt_rx_desc *rxd; 1739581c25f8SMichal Kazior struct ieee80211_hdr *hdr; 1740581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype; 1741581c25f8SMichal Kazior u8 first_hdr[64]; 1742581c25f8SMichal Kazior u8 *qos; 1743581c25f8SMichal Kazior bool has_fcs_err; 1744581c25f8SMichal Kazior bool has_crypto_err; 1745581c25f8SMichal Kazior bool has_tkip_err; 1746581c25f8SMichal Kazior bool has_peer_idx_invalid; 1747581c25f8SMichal Kazior bool is_decrypted; 174860549cabSGrzegorz Bajorski bool is_mgmt; 1749581c25f8SMichal Kazior u32 attention; 1750581c25f8SMichal Kazior 1751581c25f8SMichal Kazior if (skb_queue_empty(amsdu)) 1752581c25f8SMichal Kazior return; 1753581c25f8SMichal Kazior 1754581c25f8SMichal Kazior first = skb_peek(amsdu); 1755581c25f8SMichal Kazior rxd = (void *)first->data - sizeof(*rxd); 1756581c25f8SMichal Kazior 175760549cabSGrzegorz Bajorski is_mgmt = !!(rxd->attention.flags & 175860549cabSGrzegorz Bajorski __cpu_to_le32(RX_ATTENTION_FLAGS_MGMT_TYPE)); 175960549cabSGrzegorz Bajorski 1760581c25f8SMichal Kazior enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0), 1761581c25f8SMichal Kazior RX_MPDU_START_INFO0_ENCRYPT_TYPE); 1762581c25f8SMichal Kazior 1763581c25f8SMichal Kazior /* First MSDU's Rx descriptor in an A-MSDU contains full 802.11 1764581c25f8SMichal Kazior * decapped header. It'll be used for undecapping of each MSDU. 1765581c25f8SMichal Kazior */ 1766581c25f8SMichal Kazior hdr = (void *)rxd->rx_hdr_status; 17677eccb738SVasanthakumar Thiagarajan memcpy(first_hdr, hdr, RX_HTT_HDR_STATUS_LEN); 1768581c25f8SMichal Kazior 1769caee728aSVasanthakumar Thiagarajan if (rx_hdr) 1770caee728aSVasanthakumar Thiagarajan memcpy(rx_hdr, hdr, RX_HTT_HDR_STATUS_LEN); 1771caee728aSVasanthakumar Thiagarajan 1772581c25f8SMichal Kazior /* Each A-MSDU subframe will use the original header as the base and be 1773581c25f8SMichal Kazior * reported as a separate MSDU so strip the A-MSDU bit from QoS Ctl. 1774581c25f8SMichal Kazior */ 1775581c25f8SMichal Kazior hdr = (void *)first_hdr; 17767eccb738SVasanthakumar Thiagarajan 17777eccb738SVasanthakumar Thiagarajan if (ieee80211_is_data_qos(hdr->frame_control)) { 1778581c25f8SMichal Kazior qos = ieee80211_get_qos_ctl(hdr); 1779581c25f8SMichal Kazior qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT; 17807eccb738SVasanthakumar Thiagarajan } 1781581c25f8SMichal Kazior 1782581c25f8SMichal Kazior /* Some attention flags are valid only in the last MSDU. */ 1783581c25f8SMichal Kazior last = skb_peek_tail(amsdu); 1784581c25f8SMichal Kazior rxd = (void *)last->data - sizeof(*rxd); 1785581c25f8SMichal Kazior attention = __le32_to_cpu(rxd->attention.flags); 1786581c25f8SMichal Kazior 1787581c25f8SMichal Kazior has_fcs_err = !!(attention & RX_ATTENTION_FLAGS_FCS_ERR); 1788581c25f8SMichal Kazior has_crypto_err = !!(attention & RX_ATTENTION_FLAGS_DECRYPT_ERR); 1789581c25f8SMichal Kazior has_tkip_err = !!(attention & RX_ATTENTION_FLAGS_TKIP_MIC_ERR); 1790581c25f8SMichal Kazior has_peer_idx_invalid = !!(attention & RX_ATTENTION_FLAGS_PEER_IDX_INVALID); 1791581c25f8SMichal Kazior 1792581c25f8SMichal Kazior /* Note: If hardware captures an encrypted frame that it can't decrypt, 1793581c25f8SMichal Kazior * e.g. due to fcs error, missing peer or invalid key data it will 1794581c25f8SMichal Kazior * report the frame as raw. 1795581c25f8SMichal Kazior */ 1796581c25f8SMichal Kazior is_decrypted = (enctype != HTT_RX_MPDU_ENCRYPT_NONE && 1797581c25f8SMichal Kazior !has_fcs_err && 1798581c25f8SMichal Kazior !has_crypto_err && 1799581c25f8SMichal Kazior !has_peer_idx_invalid); 1800581c25f8SMichal Kazior 1801581c25f8SMichal Kazior /* Clear per-MPDU flags while leaving per-PPDU flags intact. */ 1802581c25f8SMichal Kazior status->flag &= ~(RX_FLAG_FAILED_FCS_CRC | 1803581c25f8SMichal Kazior RX_FLAG_MMIC_ERROR | 1804581c25f8SMichal Kazior RX_FLAG_DECRYPTED | 1805581c25f8SMichal Kazior RX_FLAG_IV_STRIPPED | 180660549cabSGrzegorz Bajorski RX_FLAG_ONLY_MONITOR | 1807581c25f8SMichal Kazior RX_FLAG_MMIC_STRIPPED); 1808581c25f8SMichal Kazior 1809581c25f8SMichal Kazior if (has_fcs_err) 1810581c25f8SMichal Kazior status->flag |= RX_FLAG_FAILED_FCS_CRC; 1811581c25f8SMichal Kazior 1812581c25f8SMichal Kazior if (has_tkip_err) 1813581c25f8SMichal Kazior status->flag |= RX_FLAG_MMIC_ERROR; 1814581c25f8SMichal Kazior 1815caee728aSVasanthakumar Thiagarajan if (err) { 1816caee728aSVasanthakumar Thiagarajan if (has_fcs_err) 1817caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_FCS; 1818caee728aSVasanthakumar Thiagarajan else if (has_tkip_err) 1819caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_TKIP; 1820caee728aSVasanthakumar Thiagarajan else if (has_crypto_err) 1821caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_CRYPT; 1822caee728aSVasanthakumar Thiagarajan else if (has_peer_idx_invalid) 1823caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_PEER_IDX_INVAL; 1824caee728aSVasanthakumar Thiagarajan } 1825caee728aSVasanthakumar Thiagarajan 182660549cabSGrzegorz Bajorski /* Firmware reports all necessary management frames via WMI already. 182760549cabSGrzegorz Bajorski * They are not reported to monitor interfaces at all so pass the ones 182860549cabSGrzegorz Bajorski * coming via HTT to monitor interfaces instead. This simplifies 182960549cabSGrzegorz Bajorski * matters a lot. 183060549cabSGrzegorz Bajorski */ 183160549cabSGrzegorz Bajorski if (is_mgmt) 183260549cabSGrzegorz Bajorski status->flag |= RX_FLAG_ONLY_MONITOR; 183360549cabSGrzegorz Bajorski 183460549cabSGrzegorz Bajorski if (is_decrypted) { 183560549cabSGrzegorz Bajorski status->flag |= RX_FLAG_DECRYPTED; 183660549cabSGrzegorz Bajorski 183760549cabSGrzegorz Bajorski if (likely(!is_mgmt)) 18387eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_MMIC_STRIPPED; 18397eccb738SVasanthakumar Thiagarajan 18407eccb738SVasanthakumar Thiagarajan if (fill_crypt_header) 18417eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_MIC_STRIPPED | 18427eccb738SVasanthakumar Thiagarajan RX_FLAG_ICV_STRIPPED; 18437eccb738SVasanthakumar Thiagarajan else 18447eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_IV_STRIPPED; 184560549cabSGrzegorz Bajorski } 1846581c25f8SMichal Kazior 1847581c25f8SMichal Kazior skb_queue_walk(amsdu, msdu) { 1848581c25f8SMichal Kazior ath10k_htt_rx_h_csum_offload(msdu); 1849581c25f8SMichal Kazior ath10k_htt_rx_h_undecap(ar, msdu, status, first_hdr, enctype, 1850581c25f8SMichal Kazior is_decrypted); 1851581c25f8SMichal Kazior 1852581c25f8SMichal Kazior /* Undecapping involves copying the original 802.11 header back 1853581c25f8SMichal Kazior * to sk_buff. If frame is protected and hardware has decrypted 1854581c25f8SMichal Kazior * it then remove the protected bit. 1855581c25f8SMichal Kazior */ 1856581c25f8SMichal Kazior if (!is_decrypted) 1857581c25f8SMichal Kazior continue; 185860549cabSGrzegorz Bajorski if (is_mgmt) 185960549cabSGrzegorz Bajorski continue; 1860581c25f8SMichal Kazior 18617eccb738SVasanthakumar Thiagarajan if (fill_crypt_header) 18627eccb738SVasanthakumar Thiagarajan continue; 18637eccb738SVasanthakumar Thiagarajan 1864581c25f8SMichal Kazior hdr = (void *)msdu->data; 1865581c25f8SMichal Kazior hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED); 1866581c25f8SMichal Kazior } 1867581c25f8SMichal Kazior } 1868581c25f8SMichal Kazior 1869deba1b9eSRajkumar Manoharan static void ath10k_htt_rx_h_enqueue(struct ath10k *ar, 1870581c25f8SMichal Kazior struct sk_buff_head *amsdu, 1871581c25f8SMichal Kazior struct ieee80211_rx_status *status) 1872581c25f8SMichal Kazior { 1873581c25f8SMichal Kazior struct sk_buff *msdu; 18747eccb738SVasanthakumar Thiagarajan struct sk_buff *first_subframe; 18757eccb738SVasanthakumar Thiagarajan 18767eccb738SVasanthakumar Thiagarajan first_subframe = skb_peek(amsdu); 1877581c25f8SMichal Kazior 1878581c25f8SMichal Kazior while ((msdu = __skb_dequeue(amsdu))) { 1879581c25f8SMichal Kazior /* Setup per-MSDU flags */ 1880581c25f8SMichal Kazior if (skb_queue_empty(amsdu)) 1881581c25f8SMichal Kazior status->flag &= ~RX_FLAG_AMSDU_MORE; 1882581c25f8SMichal Kazior else 1883581c25f8SMichal Kazior status->flag |= RX_FLAG_AMSDU_MORE; 1884581c25f8SMichal Kazior 18857eccb738SVasanthakumar Thiagarajan if (msdu == first_subframe) { 18867eccb738SVasanthakumar Thiagarajan first_subframe = NULL; 18877eccb738SVasanthakumar Thiagarajan status->flag &= ~RX_FLAG_ALLOW_SAME_PN; 18887eccb738SVasanthakumar Thiagarajan } else { 18897eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_ALLOW_SAME_PN; 18907eccb738SVasanthakumar Thiagarajan } 18917eccb738SVasanthakumar Thiagarajan 1892deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_queue_msdu(ar, status, msdu); 1893581c25f8SMichal Kazior } 1894581c25f8SMichal Kazior } 1895581c25f8SMichal Kazior 1896caee728aSVasanthakumar Thiagarajan static int ath10k_unchain_msdu(struct sk_buff_head *amsdu, 189728bbe237SKalle Valo unsigned long *unchain_cnt) 1898bfa35368SBen Greear { 18999aa505d2SMichal Kazior struct sk_buff *skb, *first; 1900bfa35368SBen Greear int space; 1901bfa35368SBen Greear int total_len = 0; 1902caee728aSVasanthakumar Thiagarajan int amsdu_len = skb_queue_len(amsdu); 1903bfa35368SBen Greear 1904bfa35368SBen Greear /* TODO: Might could optimize this by using 1905bfa35368SBen Greear * skb_try_coalesce or similar method to 1906bfa35368SBen Greear * decrease copying, or maybe get mac80211 to 1907bfa35368SBen Greear * provide a way to just receive a list of 1908bfa35368SBen Greear * skb? 1909bfa35368SBen Greear */ 1910bfa35368SBen Greear 19119aa505d2SMichal Kazior first = __skb_dequeue(amsdu); 1912bfa35368SBen Greear 1913bfa35368SBen Greear /* Allocate total length all at once. */ 19149aa505d2SMichal Kazior skb_queue_walk(amsdu, skb) 19159aa505d2SMichal Kazior total_len += skb->len; 1916bfa35368SBen Greear 19179aa505d2SMichal Kazior space = total_len - skb_tailroom(first); 1918bfa35368SBen Greear if ((space > 0) && 19199aa505d2SMichal Kazior (pskb_expand_head(first, 0, space, GFP_ATOMIC) < 0)) { 1920bfa35368SBen Greear /* TODO: bump some rx-oom error stat */ 1921bfa35368SBen Greear /* put it back together so we can free the 1922bfa35368SBen Greear * whole list at once. 1923bfa35368SBen Greear */ 19249aa505d2SMichal Kazior __skb_queue_head(amsdu, first); 1925bfa35368SBen Greear return -1; 1926bfa35368SBen Greear } 1927bfa35368SBen Greear 1928bfa35368SBen Greear /* Walk list again, copying contents into 1929bfa35368SBen Greear * msdu_head 1930bfa35368SBen Greear */ 19319aa505d2SMichal Kazior while ((skb = __skb_dequeue(amsdu))) { 19329aa505d2SMichal Kazior skb_copy_from_linear_data(skb, skb_put(first, skb->len), 19339aa505d2SMichal Kazior skb->len); 19349aa505d2SMichal Kazior dev_kfree_skb_any(skb); 1935bfa35368SBen Greear } 1936bfa35368SBen Greear 19379aa505d2SMichal Kazior __skb_queue_head(amsdu, first); 1938caee728aSVasanthakumar Thiagarajan 1939caee728aSVasanthakumar Thiagarajan *unchain_cnt += amsdu_len - 1; 1940caee728aSVasanthakumar Thiagarajan 1941bfa35368SBen Greear return 0; 1942bfa35368SBen Greear } 1943bfa35368SBen Greear 1944581c25f8SMichal Kazior static void ath10k_htt_rx_h_unchain(struct ath10k *ar, 1945caee728aSVasanthakumar Thiagarajan struct sk_buff_head *amsdu, 194628bbe237SKalle Valo unsigned long *drop_cnt, 194728bbe237SKalle Valo unsigned long *unchain_cnt) 19482acc4eb2SJanusz Dziedzic { 1949581c25f8SMichal Kazior struct sk_buff *first; 1950581c25f8SMichal Kazior struct htt_rx_desc *rxd; 1951581c25f8SMichal Kazior enum rx_msdu_decap_format decap; 19527aa7a72aSMichal Kazior 1953581c25f8SMichal Kazior first = skb_peek(amsdu); 1954581c25f8SMichal Kazior rxd = (void *)first->data - sizeof(*rxd); 19551f5dbfbbSPeter Oh decap = MS(__le32_to_cpu(rxd->msdu_start.common.info1), 1956581c25f8SMichal Kazior RX_MSDU_START_INFO1_DECAP_FORMAT); 1957581c25f8SMichal Kazior 1958581c25f8SMichal Kazior /* FIXME: Current unchaining logic can only handle simple case of raw 1959581c25f8SMichal Kazior * msdu chaining. If decapping is other than raw the chaining may be 1960581c25f8SMichal Kazior * more complex and this isn't handled by the current code. Don't even 1961581c25f8SMichal Kazior * try re-constructing such frames - it'll be pretty much garbage. 1962581c25f8SMichal Kazior */ 1963581c25f8SMichal Kazior if (decap != RX_MSDU_DECAP_RAW || 1964581c25f8SMichal Kazior skb_queue_len(amsdu) != 1 + rxd->frag_info.ring2_more_count) { 1965caee728aSVasanthakumar Thiagarajan *drop_cnt += skb_queue_len(amsdu); 1966581c25f8SMichal Kazior __skb_queue_purge(amsdu); 1967581c25f8SMichal Kazior return; 1968581c25f8SMichal Kazior } 1969581c25f8SMichal Kazior 1970caee728aSVasanthakumar Thiagarajan ath10k_unchain_msdu(amsdu, unchain_cnt); 1971581c25f8SMichal Kazior } 1972581c25f8SMichal Kazior 1973581c25f8SMichal Kazior static bool ath10k_htt_rx_amsdu_allowed(struct ath10k *ar, 1974581c25f8SMichal Kazior struct sk_buff_head *amsdu, 1975581c25f8SMichal Kazior struct ieee80211_rx_status *rx_status) 1976581c25f8SMichal Kazior { 1977581c25f8SMichal Kazior /* FIXME: It might be a good idea to do some fuzzy-testing to drop 1978581c25f8SMichal Kazior * invalid/dangerous frames. 1979581c25f8SMichal Kazior */ 1980581c25f8SMichal Kazior 1981581c25f8SMichal Kazior if (!rx_status->freq) { 1982984eb905SGabriel Craciunescu ath10k_dbg(ar, ATH10K_DBG_HTT, "no channel configured; ignoring frame(s)!\n"); 19832acc4eb2SJanusz Dziedzic return false; 19842acc4eb2SJanusz Dziedzic } 19852acc4eb2SJanusz Dziedzic 1986581c25f8SMichal Kazior if (test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags)) { 1987581c25f8SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx cac running\n"); 19882acc4eb2SJanusz Dziedzic return false; 19892acc4eb2SJanusz Dziedzic } 19902acc4eb2SJanusz Dziedzic 19912acc4eb2SJanusz Dziedzic return true; 19922acc4eb2SJanusz Dziedzic } 19932acc4eb2SJanusz Dziedzic 1994581c25f8SMichal Kazior static void ath10k_htt_rx_h_filter(struct ath10k *ar, 1995581c25f8SMichal Kazior struct sk_buff_head *amsdu, 1996caee728aSVasanthakumar Thiagarajan struct ieee80211_rx_status *rx_status, 199728bbe237SKalle Valo unsigned long *drop_cnt) 1998581c25f8SMichal Kazior { 1999581c25f8SMichal Kazior if (skb_queue_empty(amsdu)) 2000581c25f8SMichal Kazior return; 2001581c25f8SMichal Kazior 2002581c25f8SMichal Kazior if (ath10k_htt_rx_amsdu_allowed(ar, amsdu, rx_status)) 2003581c25f8SMichal Kazior return; 2004581c25f8SMichal Kazior 2005caee728aSVasanthakumar Thiagarajan if (drop_cnt) 2006caee728aSVasanthakumar Thiagarajan *drop_cnt += skb_queue_len(amsdu); 2007caee728aSVasanthakumar Thiagarajan 2008581c25f8SMichal Kazior __skb_queue_purge(amsdu); 2009581c25f8SMichal Kazior } 2010581c25f8SMichal Kazior 201118235664SRajkumar Manoharan static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt *htt) 201218235664SRajkumar Manoharan { 201318235664SRajkumar Manoharan struct ath10k *ar = htt->ar; 2014237e15dfSAshok Raj Nagarajan struct ieee80211_rx_status *rx_status = &htt->rx_status; 201518235664SRajkumar Manoharan struct sk_buff_head amsdu; 2016deba1b9eSRajkumar Manoharan int ret; 201728bbe237SKalle Valo unsigned long drop_cnt = 0; 201828bbe237SKalle Valo unsigned long unchain_cnt = 0; 201928bbe237SKalle Valo unsigned long drop_cnt_filter = 0; 202028bbe237SKalle Valo unsigned long msdus_to_queue, num_msdus; 2021caee728aSVasanthakumar Thiagarajan enum ath10k_pkt_rx_err err = ATH10K_PKT_RX_ERR_MAX; 2022caee728aSVasanthakumar Thiagarajan u8 first_hdr[RX_HTT_HDR_STATUS_LEN]; 202318235664SRajkumar Manoharan 202418235664SRajkumar Manoharan __skb_queue_head_init(&amsdu); 202518235664SRajkumar Manoharan 202618235664SRajkumar Manoharan spin_lock_bh(&htt->rx_ring.lock); 202718235664SRajkumar Manoharan if (htt->rx_confused) { 202818235664SRajkumar Manoharan spin_unlock_bh(&htt->rx_ring.lock); 202918235664SRajkumar Manoharan return -EIO; 203018235664SRajkumar Manoharan } 203118235664SRajkumar Manoharan ret = ath10k_htt_rx_amsdu_pop(htt, &amsdu); 203218235664SRajkumar Manoharan spin_unlock_bh(&htt->rx_ring.lock); 203318235664SRajkumar Manoharan 203418235664SRajkumar Manoharan if (ret < 0) { 203518235664SRajkumar Manoharan ath10k_warn(ar, "rx ring became corrupted: %d\n", ret); 203618235664SRajkumar Manoharan __skb_queue_purge(&amsdu); 203718235664SRajkumar Manoharan /* FIXME: It's probably a good idea to reboot the 203818235664SRajkumar Manoharan * device instead of leaving it inoperable. 203918235664SRajkumar Manoharan */ 204018235664SRajkumar Manoharan htt->rx_confused = true; 204118235664SRajkumar Manoharan return ret; 204218235664SRajkumar Manoharan } 204318235664SRajkumar Manoharan 2044caee728aSVasanthakumar Thiagarajan num_msdus = skb_queue_len(&amsdu); 2045caee728aSVasanthakumar Thiagarajan 2046237e15dfSAshok Raj Nagarajan ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff); 20477543d116SMohammed Shafi Shajakhan 20487543d116SMohammed Shafi Shajakhan /* only for ret = 1 indicates chained msdus */ 20497543d116SMohammed Shafi Shajakhan if (ret > 0) 2050caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_unchain(ar, &amsdu, &drop_cnt, &unchain_cnt); 20517543d116SMohammed Shafi Shajakhan 2052caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_filter(ar, &amsdu, rx_status, &drop_cnt_filter); 2053caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status, true, first_hdr, &err); 2054caee728aSVasanthakumar Thiagarajan msdus_to_queue = skb_queue_len(&amsdu); 2055deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_enqueue(ar, &amsdu, rx_status); 205618235664SRajkumar Manoharan 2057caee728aSVasanthakumar Thiagarajan ath10k_sta_update_rx_tid_stats(ar, first_hdr, num_msdus, err, 2058caee728aSVasanthakumar Thiagarajan unchain_cnt, drop_cnt, drop_cnt_filter, 2059caee728aSVasanthakumar Thiagarajan msdus_to_queue); 2060caee728aSVasanthakumar Thiagarajan 2061deba1b9eSRajkumar Manoharan return 0; 206218235664SRajkumar Manoharan } 206318235664SRajkumar Manoharan 2064130c7749SWen Gong static void ath10k_htt_rx_mpdu_desc_pn_hl(struct htt_hl_rx_desc *rx_desc, 2065130c7749SWen Gong union htt_rx_pn_t *pn, 2066130c7749SWen Gong int pn_len_bits) 2067130c7749SWen Gong { 2068130c7749SWen Gong switch (pn_len_bits) { 2069130c7749SWen Gong case 48: 2070130c7749SWen Gong pn->pn48 = __le32_to_cpu(rx_desc->pn_31_0) + 2071130c7749SWen Gong ((u64)(__le32_to_cpu(rx_desc->u0.pn_63_32) & 0xFFFF) << 32); 2072130c7749SWen Gong break; 2073130c7749SWen Gong case 24: 2074130c7749SWen Gong pn->pn24 = __le32_to_cpu(rx_desc->pn_31_0); 2075130c7749SWen Gong break; 2076130c7749SWen Gong }; 2077130c7749SWen Gong } 2078130c7749SWen Gong 2079130c7749SWen Gong static bool ath10k_htt_rx_pn_cmp48(union htt_rx_pn_t *new_pn, 2080130c7749SWen Gong union htt_rx_pn_t *old_pn) 2081130c7749SWen Gong { 2082130c7749SWen Gong return ((new_pn->pn48 & 0xffffffffffffULL) <= 2083130c7749SWen Gong (old_pn->pn48 & 0xffffffffffffULL)); 2084130c7749SWen Gong } 2085130c7749SWen Gong 2086130c7749SWen Gong static bool ath10k_htt_rx_pn_check_replay_hl(struct ath10k *ar, 2087130c7749SWen Gong struct ath10k_peer *peer, 2088130c7749SWen Gong struct htt_rx_indication_hl *rx) 2089130c7749SWen Gong { 2090130c7749SWen Gong bool last_pn_valid, pn_invalid = false; 2091130c7749SWen Gong enum htt_txrx_sec_cast_type sec_index; 2092130c7749SWen Gong enum htt_security_types sec_type; 2093130c7749SWen Gong union htt_rx_pn_t new_pn = {0}; 2094130c7749SWen Gong struct htt_hl_rx_desc *rx_desc; 2095130c7749SWen Gong union htt_rx_pn_t *last_pn; 2096130c7749SWen Gong u32 rx_desc_info, tid; 2097130c7749SWen Gong int num_mpdu_ranges; 2098130c7749SWen Gong 2099130c7749SWen Gong lockdep_assert_held(&ar->data_lock); 2100130c7749SWen Gong 2101130c7749SWen Gong if (!peer) 2102130c7749SWen Gong return false; 2103130c7749SWen Gong 2104130c7749SWen Gong if (!(rx->fw_desc.flags & FW_RX_DESC_FLAGS_FIRST_MSDU)) 2105130c7749SWen Gong return false; 2106130c7749SWen Gong 2107130c7749SWen Gong num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1), 2108130c7749SWen Gong HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES); 2109130c7749SWen Gong 2110130c7749SWen Gong rx_desc = (struct htt_hl_rx_desc *)&rx->mpdu_ranges[num_mpdu_ranges]; 2111130c7749SWen Gong rx_desc_info = __le32_to_cpu(rx_desc->info); 2112130c7749SWen Gong 2113130c7749SWen Gong if (!MS(rx_desc_info, HTT_RX_DESC_HL_INFO_ENCRYPTED)) 2114130c7749SWen Gong return false; 2115130c7749SWen Gong 2116130c7749SWen Gong tid = MS(rx->hdr.info0, HTT_RX_INDICATION_INFO0_EXT_TID); 2117130c7749SWen Gong last_pn_valid = peer->tids_last_pn_valid[tid]; 2118130c7749SWen Gong last_pn = &peer->tids_last_pn[tid]; 2119130c7749SWen Gong 2120130c7749SWen Gong if (MS(rx_desc_info, HTT_RX_DESC_HL_INFO_MCAST_BCAST)) 2121130c7749SWen Gong sec_index = HTT_TXRX_SEC_MCAST; 2122130c7749SWen Gong else 2123130c7749SWen Gong sec_index = HTT_TXRX_SEC_UCAST; 2124130c7749SWen Gong 2125130c7749SWen Gong sec_type = peer->rx_pn[sec_index].sec_type; 2126130c7749SWen Gong ath10k_htt_rx_mpdu_desc_pn_hl(rx_desc, &new_pn, peer->rx_pn[sec_index].pn_len); 2127130c7749SWen Gong 2128130c7749SWen Gong if (sec_type != HTT_SECURITY_AES_CCMP && 2129130c7749SWen Gong sec_type != HTT_SECURITY_TKIP && 2130130c7749SWen Gong sec_type != HTT_SECURITY_TKIP_NOMIC) 2131130c7749SWen Gong return false; 2132130c7749SWen Gong 2133130c7749SWen Gong if (last_pn_valid) 2134130c7749SWen Gong pn_invalid = ath10k_htt_rx_pn_cmp48(&new_pn, last_pn); 2135130c7749SWen Gong else 2136130c7749SWen Gong peer->tids_last_pn_valid[tid] = 1; 2137130c7749SWen Gong 2138130c7749SWen Gong if (!pn_invalid) 2139130c7749SWen Gong last_pn->pn48 = new_pn.pn48; 2140130c7749SWen Gong 2141130c7749SWen Gong return pn_invalid; 2142130c7749SWen Gong } 2143130c7749SWen Gong 2144f88d4934SErik Stromdahl static bool ath10k_htt_rx_proc_rx_ind_hl(struct ath10k_htt *htt, 2145f88d4934SErik Stromdahl struct htt_rx_indication_hl *rx, 2146130c7749SWen Gong struct sk_buff *skb, 2147130c7749SWen Gong enum htt_rx_pn_check_type check_pn_type, 2148130c7749SWen Gong enum htt_rx_tkip_demic_type tkip_mic_type) 2149f88d4934SErik Stromdahl { 2150f88d4934SErik Stromdahl struct ath10k *ar = htt->ar; 2151f88d4934SErik Stromdahl struct ath10k_peer *peer; 2152f88d4934SErik Stromdahl struct htt_rx_indication_mpdu_range *mpdu_ranges; 2153f88d4934SErik Stromdahl struct fw_rx_desc_hl *fw_desc; 2154f88d4934SErik Stromdahl struct ieee80211_hdr *hdr; 2155f88d4934SErik Stromdahl struct ieee80211_rx_status *rx_status; 2156f88d4934SErik Stromdahl u16 peer_id; 2157f88d4934SErik Stromdahl u8 rx_desc_len; 2158f88d4934SErik Stromdahl int num_mpdu_ranges; 2159f88d4934SErik Stromdahl size_t tot_hdr_len; 2160f88d4934SErik Stromdahl struct ieee80211_channel *ch; 2161f88d4934SErik Stromdahl 2162f88d4934SErik Stromdahl peer_id = __le16_to_cpu(rx->hdr.peer_id); 2163f88d4934SErik Stromdahl 2164f88d4934SErik Stromdahl spin_lock_bh(&ar->data_lock); 2165f88d4934SErik Stromdahl peer = ath10k_peer_find_by_id(ar, peer_id); 2166f88d4934SErik Stromdahl spin_unlock_bh(&ar->data_lock); 2167f88d4934SErik Stromdahl if (!peer) 2168f88d4934SErik Stromdahl ath10k_warn(ar, "Got RX ind from invalid peer: %u\n", peer_id); 2169f88d4934SErik Stromdahl 2170f88d4934SErik Stromdahl num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1), 2171f88d4934SErik Stromdahl HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES); 2172f88d4934SErik Stromdahl mpdu_ranges = htt_rx_ind_get_mpdu_ranges_hl(rx); 2173f88d4934SErik Stromdahl fw_desc = &rx->fw_desc; 2174f88d4934SErik Stromdahl rx_desc_len = fw_desc->len; 2175f88d4934SErik Stromdahl 2176f88d4934SErik Stromdahl /* I have not yet seen any case where num_mpdu_ranges > 1. 2177f88d4934SErik Stromdahl * qcacld does not seem handle that case either, so we introduce the 2178f88d4934SErik Stromdahl * same limitiation here as well. 2179f88d4934SErik Stromdahl */ 2180f88d4934SErik Stromdahl if (num_mpdu_ranges > 1) 2181f88d4934SErik Stromdahl ath10k_warn(ar, 2182f88d4934SErik Stromdahl "Unsupported number of MPDU ranges: %d, ignoring all but the first\n", 2183f88d4934SErik Stromdahl num_mpdu_ranges); 2184f88d4934SErik Stromdahl 2185f88d4934SErik Stromdahl if (mpdu_ranges->mpdu_range_status != 2186f88d4934SErik Stromdahl HTT_RX_IND_MPDU_STATUS_OK) { 2187f88d4934SErik Stromdahl ath10k_warn(ar, "MPDU range status: %d\n", 2188f88d4934SErik Stromdahl mpdu_ranges->mpdu_range_status); 2189f88d4934SErik Stromdahl goto err; 2190f88d4934SErik Stromdahl } 2191f88d4934SErik Stromdahl 2192130c7749SWen Gong if (check_pn_type == HTT_RX_PN_CHECK && 2193130c7749SWen Gong ath10k_htt_rx_pn_check_replay_hl(ar, peer, rx)) 2194130c7749SWen Gong goto err; 2195130c7749SWen Gong 2196f88d4934SErik Stromdahl /* Strip off all headers before the MAC header before delivery to 2197f88d4934SErik Stromdahl * mac80211 2198f88d4934SErik Stromdahl */ 2199f88d4934SErik Stromdahl tot_hdr_len = sizeof(struct htt_resp_hdr) + sizeof(rx->hdr) + 2200f88d4934SErik Stromdahl sizeof(rx->ppdu) + sizeof(rx->prefix) + 2201f88d4934SErik Stromdahl sizeof(rx->fw_desc) + 2202f88d4934SErik Stromdahl sizeof(*mpdu_ranges) * num_mpdu_ranges + rx_desc_len; 2203130c7749SWen Gong 2204f88d4934SErik Stromdahl skb_pull(skb, tot_hdr_len); 2205f88d4934SErik Stromdahl 2206f88d4934SErik Stromdahl hdr = (struct ieee80211_hdr *)skb->data; 2207f88d4934SErik Stromdahl rx_status = IEEE80211_SKB_RXCB(skb); 2208f88d4934SErik Stromdahl rx_status->chains |= BIT(0); 22097d444522SAlagu Sankar if (rx->ppdu.combined_rssi == 0) { 22107d444522SAlagu Sankar /* SDIO firmware does not provide signal */ 22117d444522SAlagu Sankar rx_status->signal = 0; 22127d444522SAlagu Sankar rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL; 22137d444522SAlagu Sankar } else { 2214f88d4934SErik Stromdahl rx_status->signal = ATH10K_DEFAULT_NOISE_FLOOR + 2215f88d4934SErik Stromdahl rx->ppdu.combined_rssi; 2216f88d4934SErik Stromdahl rx_status->flag &= ~RX_FLAG_NO_SIGNAL_VAL; 22177d444522SAlagu Sankar } 2218f88d4934SErik Stromdahl 2219f88d4934SErik Stromdahl spin_lock_bh(&ar->data_lock); 2220f88d4934SErik Stromdahl ch = ar->scan_channel; 2221f88d4934SErik Stromdahl if (!ch) 2222f88d4934SErik Stromdahl ch = ar->rx_channel; 2223f88d4934SErik Stromdahl if (!ch) 2224f88d4934SErik Stromdahl ch = ath10k_htt_rx_h_any_channel(ar); 2225f88d4934SErik Stromdahl if (!ch) 2226f88d4934SErik Stromdahl ch = ar->tgt_oper_chan; 2227f88d4934SErik Stromdahl spin_unlock_bh(&ar->data_lock); 2228f88d4934SErik Stromdahl 2229f88d4934SErik Stromdahl if (ch) { 2230f88d4934SErik Stromdahl rx_status->band = ch->band; 2231f88d4934SErik Stromdahl rx_status->freq = ch->center_freq; 2232f88d4934SErik Stromdahl } 2233f88d4934SErik Stromdahl if (rx->fw_desc.flags & FW_RX_DESC_FLAGS_LAST_MSDU) 2234f88d4934SErik Stromdahl rx_status->flag &= ~RX_FLAG_AMSDU_MORE; 2235f88d4934SErik Stromdahl else 2236f88d4934SErik Stromdahl rx_status->flag |= RX_FLAG_AMSDU_MORE; 2237f88d4934SErik Stromdahl 2238f88d4934SErik Stromdahl /* Not entirely sure about this, but all frames from the chipset has 2239f88d4934SErik Stromdahl * the protected flag set even though they have already been decrypted. 2240f88d4934SErik Stromdahl * Unmasking this flag is necessary in order for mac80211 not to drop 2241f88d4934SErik Stromdahl * the frame. 2242f88d4934SErik Stromdahl * TODO: Verify this is always the case or find out a way to check 2243f88d4934SErik Stromdahl * if there has been hw decryption. 2244f88d4934SErik Stromdahl */ 2245f88d4934SErik Stromdahl if (ieee80211_has_protected(hdr->frame_control)) { 2246f88d4934SErik Stromdahl hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED); 2247f88d4934SErik Stromdahl rx_status->flag |= RX_FLAG_DECRYPTED | 2248f88d4934SErik Stromdahl RX_FLAG_IV_STRIPPED | 2249f88d4934SErik Stromdahl RX_FLAG_MMIC_STRIPPED; 2250f88d4934SErik Stromdahl } 2251f88d4934SErik Stromdahl 2252130c7749SWen Gong if (tkip_mic_type == HTT_RX_TKIP_MIC) 2253130c7749SWen Gong rx_status->flag &= ~RX_FLAG_IV_STRIPPED & 2254130c7749SWen Gong ~RX_FLAG_MMIC_STRIPPED; 2255130c7749SWen Gong 2256f88d4934SErik Stromdahl ieee80211_rx_ni(ar->hw, skb); 2257f88d4934SErik Stromdahl 2258f88d4934SErik Stromdahl /* We have delivered the skb to the upper layers (mac80211) so we 2259f88d4934SErik Stromdahl * must not free it. 2260f88d4934SErik Stromdahl */ 2261f88d4934SErik Stromdahl return false; 2262f88d4934SErik Stromdahl err: 2263f88d4934SErik Stromdahl /* Tell the caller that it must free the skb since we have not 2264f88d4934SErik Stromdahl * consumed it 2265f88d4934SErik Stromdahl */ 2266f88d4934SErik Stromdahl return true; 2267f88d4934SErik Stromdahl } 2268f88d4934SErik Stromdahl 226933f97472SWen Gong static int ath10k_htt_rx_frag_tkip_decap_nomic(struct sk_buff *skb, 227033f97472SWen Gong u16 head_len, 227133f97472SWen Gong u16 hdr_len) 227233f97472SWen Gong { 227333f97472SWen Gong u8 *ivp, *orig_hdr; 227433f97472SWen Gong 227533f97472SWen Gong orig_hdr = skb->data; 227633f97472SWen Gong ivp = orig_hdr + hdr_len + head_len; 227733f97472SWen Gong 227833f97472SWen Gong /* the ExtIV bit is always set to 1 for TKIP */ 227933f97472SWen Gong if (!(ivp[IEEE80211_WEP_IV_LEN - 1] & ATH10K_IEEE80211_EXTIV)) 228033f97472SWen Gong return -EINVAL; 228133f97472SWen Gong 228233f97472SWen Gong memmove(orig_hdr + IEEE80211_TKIP_IV_LEN, orig_hdr, head_len + hdr_len); 228333f97472SWen Gong skb_pull(skb, IEEE80211_TKIP_IV_LEN); 228433f97472SWen Gong skb_trim(skb, skb->len - ATH10K_IEEE80211_TKIP_MICLEN); 228533f97472SWen Gong return 0; 228633f97472SWen Gong } 228733f97472SWen Gong 228833f97472SWen Gong static int ath10k_htt_rx_frag_tkip_decap_withmic(struct sk_buff *skb, 228933f97472SWen Gong u16 head_len, 229033f97472SWen Gong u16 hdr_len) 229133f97472SWen Gong { 229233f97472SWen Gong u8 *ivp, *orig_hdr; 229333f97472SWen Gong 229433f97472SWen Gong orig_hdr = skb->data; 229533f97472SWen Gong ivp = orig_hdr + hdr_len + head_len; 229633f97472SWen Gong 229733f97472SWen Gong /* the ExtIV bit is always set to 1 for TKIP */ 229833f97472SWen Gong if (!(ivp[IEEE80211_WEP_IV_LEN - 1] & ATH10K_IEEE80211_EXTIV)) 229933f97472SWen Gong return -EINVAL; 230033f97472SWen Gong 230133f97472SWen Gong memmove(orig_hdr + IEEE80211_TKIP_IV_LEN, orig_hdr, head_len + hdr_len); 230233f97472SWen Gong skb_pull(skb, IEEE80211_TKIP_IV_LEN); 230333f97472SWen Gong skb_trim(skb, skb->len - IEEE80211_TKIP_ICV_LEN); 230433f97472SWen Gong return 0; 230533f97472SWen Gong } 230633f97472SWen Gong 230733f97472SWen Gong static int ath10k_htt_rx_frag_ccmp_decap(struct sk_buff *skb, 230833f97472SWen Gong u16 head_len, 230933f97472SWen Gong u16 hdr_len) 231033f97472SWen Gong { 231133f97472SWen Gong u8 *ivp, *orig_hdr; 231233f97472SWen Gong 231333f97472SWen Gong orig_hdr = skb->data; 231433f97472SWen Gong ivp = orig_hdr + hdr_len + head_len; 231533f97472SWen Gong 231633f97472SWen Gong /* the ExtIV bit is always set to 1 for CCMP */ 231733f97472SWen Gong if (!(ivp[IEEE80211_WEP_IV_LEN - 1] & ATH10K_IEEE80211_EXTIV)) 231833f97472SWen Gong return -EINVAL; 231933f97472SWen Gong 232033f97472SWen Gong skb_trim(skb, skb->len - IEEE80211_CCMP_MIC_LEN); 232133f97472SWen Gong memmove(orig_hdr + IEEE80211_CCMP_HDR_LEN, orig_hdr, head_len + hdr_len); 232233f97472SWen Gong skb_pull(skb, IEEE80211_CCMP_HDR_LEN); 232333f97472SWen Gong return 0; 232433f97472SWen Gong } 232533f97472SWen Gong 232633f97472SWen Gong static int ath10k_htt_rx_frag_wep_decap(struct sk_buff *skb, 232733f97472SWen Gong u16 head_len, 232833f97472SWen Gong u16 hdr_len) 232933f97472SWen Gong { 233033f97472SWen Gong u8 *orig_hdr; 233133f97472SWen Gong 233233f97472SWen Gong orig_hdr = skb->data; 233333f97472SWen Gong 233433f97472SWen Gong memmove(orig_hdr + IEEE80211_WEP_IV_LEN, 233533f97472SWen Gong orig_hdr, head_len + hdr_len); 233633f97472SWen Gong skb_pull(skb, IEEE80211_WEP_IV_LEN); 233733f97472SWen Gong skb_trim(skb, skb->len - IEEE80211_WEP_ICV_LEN); 233833f97472SWen Gong return 0; 233933f97472SWen Gong } 234033f97472SWen Gong 234133f97472SWen Gong static bool ath10k_htt_rx_proc_rx_frag_ind_hl(struct ath10k_htt *htt, 234233f97472SWen Gong struct htt_rx_fragment_indication *rx, 234333f97472SWen Gong struct sk_buff *skb) 234433f97472SWen Gong { 234533f97472SWen Gong struct ath10k *ar = htt->ar; 234633f97472SWen Gong enum htt_rx_tkip_demic_type tkip_mic = HTT_RX_NON_TKIP_MIC; 234733f97472SWen Gong enum htt_txrx_sec_cast_type sec_index; 234833f97472SWen Gong struct htt_rx_indication_hl *rx_hl; 234933f97472SWen Gong enum htt_security_types sec_type; 235033f97472SWen Gong u32 tid, frag, seq, rx_desc_info; 235133f97472SWen Gong union htt_rx_pn_t new_pn = {0}; 235233f97472SWen Gong struct htt_hl_rx_desc *rx_desc; 235333f97472SWen Gong u16 peer_id, sc, hdr_space; 235433f97472SWen Gong union htt_rx_pn_t *last_pn; 235533f97472SWen Gong struct ieee80211_hdr *hdr; 235633f97472SWen Gong int ret, num_mpdu_ranges; 235733f97472SWen Gong struct ath10k_peer *peer; 235833f97472SWen Gong struct htt_resp *resp; 235933f97472SWen Gong size_t tot_hdr_len; 236033f97472SWen Gong 236133f97472SWen Gong resp = (struct htt_resp *)(skb->data + HTT_RX_FRAG_IND_INFO0_HEADER_LEN); 236233f97472SWen Gong skb_pull(skb, HTT_RX_FRAG_IND_INFO0_HEADER_LEN); 236333f97472SWen Gong skb_trim(skb, skb->len - FCS_LEN); 236433f97472SWen Gong 236533f97472SWen Gong peer_id = __le16_to_cpu(rx->peer_id); 236633f97472SWen Gong rx_hl = (struct htt_rx_indication_hl *)(&resp->rx_ind_hl); 236733f97472SWen Gong 236833f97472SWen Gong spin_lock_bh(&ar->data_lock); 236933f97472SWen Gong peer = ath10k_peer_find_by_id(ar, peer_id); 237033f97472SWen Gong if (!peer) { 237133f97472SWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT, "invalid peer: %u\n", peer_id); 237233f97472SWen Gong goto err; 237333f97472SWen Gong } 237433f97472SWen Gong 237533f97472SWen Gong num_mpdu_ranges = MS(__le32_to_cpu(rx_hl->hdr.info1), 237633f97472SWen Gong HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES); 237733f97472SWen Gong 237833f97472SWen Gong tot_hdr_len = sizeof(struct htt_resp_hdr) + 237933f97472SWen Gong sizeof(rx_hl->hdr) + 238033f97472SWen Gong sizeof(rx_hl->ppdu) + 238133f97472SWen Gong sizeof(rx_hl->prefix) + 238233f97472SWen Gong sizeof(rx_hl->fw_desc) + 238333f97472SWen Gong sizeof(struct htt_rx_indication_mpdu_range) * num_mpdu_ranges; 238433f97472SWen Gong 238533f97472SWen Gong tid = MS(rx_hl->hdr.info0, HTT_RX_INDICATION_INFO0_EXT_TID); 238633f97472SWen Gong rx_desc = (struct htt_hl_rx_desc *)(skb->data + tot_hdr_len); 238733f97472SWen Gong rx_desc_info = __le32_to_cpu(rx_desc->info); 238833f97472SWen Gong 238933f97472SWen Gong if (!MS(rx_desc_info, HTT_RX_DESC_HL_INFO_ENCRYPTED)) { 239033f97472SWen Gong spin_unlock_bh(&ar->data_lock); 239133f97472SWen Gong return ath10k_htt_rx_proc_rx_ind_hl(htt, &resp->rx_ind_hl, skb, 239233f97472SWen Gong HTT_RX_NON_PN_CHECK, 239333f97472SWen Gong HTT_RX_NON_TKIP_MIC); 239433f97472SWen Gong } 239533f97472SWen Gong 239633f97472SWen Gong hdr = (struct ieee80211_hdr *)((u8 *)rx_desc + rx_hl->fw_desc.len); 239733f97472SWen Gong 239833f97472SWen Gong if (ieee80211_has_retry(hdr->frame_control)) 239933f97472SWen Gong goto err; 240033f97472SWen Gong 240133f97472SWen Gong hdr_space = ieee80211_hdrlen(hdr->frame_control); 240233f97472SWen Gong sc = __le16_to_cpu(hdr->seq_ctrl); 240333f97472SWen Gong seq = (sc & IEEE80211_SCTL_SEQ) >> 4; 240433f97472SWen Gong frag = sc & IEEE80211_SCTL_FRAG; 240533f97472SWen Gong 240633f97472SWen Gong sec_index = MS(rx_desc_info, HTT_RX_DESC_HL_INFO_MCAST_BCAST) ? 240733f97472SWen Gong HTT_TXRX_SEC_MCAST : HTT_TXRX_SEC_UCAST; 240833f97472SWen Gong sec_type = peer->rx_pn[sec_index].sec_type; 240933f97472SWen Gong ath10k_htt_rx_mpdu_desc_pn_hl(rx_desc, &new_pn, peer->rx_pn[sec_index].pn_len); 241033f97472SWen Gong 241133f97472SWen Gong switch (sec_type) { 241233f97472SWen Gong case HTT_SECURITY_TKIP: 241333f97472SWen Gong tkip_mic = HTT_RX_TKIP_MIC; 241433f97472SWen Gong ret = ath10k_htt_rx_frag_tkip_decap_withmic(skb, 241533f97472SWen Gong tot_hdr_len + 241633f97472SWen Gong rx_hl->fw_desc.len, 241733f97472SWen Gong hdr_space); 241833f97472SWen Gong if (ret) 241933f97472SWen Gong goto err; 242033f97472SWen Gong break; 242133f97472SWen Gong case HTT_SECURITY_TKIP_NOMIC: 242233f97472SWen Gong ret = ath10k_htt_rx_frag_tkip_decap_nomic(skb, 242333f97472SWen Gong tot_hdr_len + 242433f97472SWen Gong rx_hl->fw_desc.len, 242533f97472SWen Gong hdr_space); 242633f97472SWen Gong if (ret) 242733f97472SWen Gong goto err; 242833f97472SWen Gong break; 242933f97472SWen Gong case HTT_SECURITY_AES_CCMP: 243033f97472SWen Gong ret = ath10k_htt_rx_frag_ccmp_decap(skb, 243133f97472SWen Gong tot_hdr_len + rx_hl->fw_desc.len, 243233f97472SWen Gong hdr_space); 243333f97472SWen Gong if (ret) 243433f97472SWen Gong goto err; 243533f97472SWen Gong break; 243633f97472SWen Gong case HTT_SECURITY_WEP128: 243733f97472SWen Gong case HTT_SECURITY_WEP104: 243833f97472SWen Gong case HTT_SECURITY_WEP40: 243933f97472SWen Gong ret = ath10k_htt_rx_frag_wep_decap(skb, 244033f97472SWen Gong tot_hdr_len + rx_hl->fw_desc.len, 244133f97472SWen Gong hdr_space); 244233f97472SWen Gong if (ret) 244333f97472SWen Gong goto err; 244433f97472SWen Gong break; 244533f97472SWen Gong default: 244633f97472SWen Gong break; 244733f97472SWen Gong } 244833f97472SWen Gong 244933f97472SWen Gong resp = (struct htt_resp *)(skb->data); 245033f97472SWen Gong 245133f97472SWen Gong if (sec_type != HTT_SECURITY_AES_CCMP && 245233f97472SWen Gong sec_type != HTT_SECURITY_TKIP && 245333f97472SWen Gong sec_type != HTT_SECURITY_TKIP_NOMIC) { 245433f97472SWen Gong spin_unlock_bh(&ar->data_lock); 245533f97472SWen Gong return ath10k_htt_rx_proc_rx_ind_hl(htt, &resp->rx_ind_hl, skb, 245633f97472SWen Gong HTT_RX_NON_PN_CHECK, 245733f97472SWen Gong HTT_RX_NON_TKIP_MIC); 245833f97472SWen Gong } 245933f97472SWen Gong 246033f97472SWen Gong last_pn = &peer->frag_tids_last_pn[tid]; 246133f97472SWen Gong 246233f97472SWen Gong if (frag == 0) { 246333f97472SWen Gong if (ath10k_htt_rx_pn_check_replay_hl(ar, peer, &resp->rx_ind_hl)) 246433f97472SWen Gong goto err; 246533f97472SWen Gong 246633f97472SWen Gong last_pn->pn48 = new_pn.pn48; 246733f97472SWen Gong peer->frag_tids_seq[tid] = seq; 246833f97472SWen Gong } else if (sec_type == HTT_SECURITY_AES_CCMP) { 246933f97472SWen Gong if (seq != peer->frag_tids_seq[tid]) 247033f97472SWen Gong goto err; 247133f97472SWen Gong 247233f97472SWen Gong if (new_pn.pn48 != last_pn->pn48 + 1) 247333f97472SWen Gong goto err; 247433f97472SWen Gong 247533f97472SWen Gong last_pn->pn48 = new_pn.pn48; 247633f97472SWen Gong last_pn = &peer->tids_last_pn[tid]; 247733f97472SWen Gong last_pn->pn48 = new_pn.pn48; 247833f97472SWen Gong } 247933f97472SWen Gong 248033f97472SWen Gong spin_unlock_bh(&ar->data_lock); 248133f97472SWen Gong 248233f97472SWen Gong return ath10k_htt_rx_proc_rx_ind_hl(htt, &resp->rx_ind_hl, skb, 248333f97472SWen Gong HTT_RX_NON_PN_CHECK, tkip_mic); 248433f97472SWen Gong 248533f97472SWen Gong err: 248633f97472SWen Gong spin_unlock_bh(&ar->data_lock); 248733f97472SWen Gong 248833f97472SWen Gong /* Tell the caller that it must free the skb since we have not 248933f97472SWen Gong * consumed it 249033f97472SWen Gong */ 249133f97472SWen Gong return true; 249233f97472SWen Gong } 249333f97472SWen Gong 2494f88d4934SErik Stromdahl static void ath10k_htt_rx_proc_rx_ind_ll(struct ath10k_htt *htt, 24955e3dd157SKalle Valo struct htt_rx_indication *rx) 24965e3dd157SKalle Valo { 24977aa7a72aSMichal Kazior struct ath10k *ar = htt->ar; 24985e3dd157SKalle Valo struct htt_rx_indication_mpdu_range *mpdu_ranges; 24995e3dd157SKalle Valo int num_mpdu_ranges; 250018235664SRajkumar Manoharan int i, mpdu_count = 0; 2501caee728aSVasanthakumar Thiagarajan u16 peer_id; 2502caee728aSVasanthakumar Thiagarajan u8 tid; 25035e3dd157SKalle Valo 25045e3dd157SKalle Valo num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1), 25055e3dd157SKalle Valo HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES); 2506caee728aSVasanthakumar Thiagarajan peer_id = __le16_to_cpu(rx->hdr.peer_id); 2507caee728aSVasanthakumar Thiagarajan tid = MS(rx->hdr.info0, HTT_RX_INDICATION_INFO0_EXT_TID); 2508caee728aSVasanthakumar Thiagarajan 25095e3dd157SKalle Valo mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx); 25105e3dd157SKalle Valo 25117aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ", 251235b50e70SGustavo A. R. Silva rx, struct_size(rx, mpdu_ranges, num_mpdu_ranges)); 25135e3dd157SKalle Valo 2514d540690dSMichal Kazior for (i = 0; i < num_mpdu_ranges; i++) 2515d540690dSMichal Kazior mpdu_count += mpdu_ranges[i].mpdu_count; 2516d540690dSMichal Kazior 25173128b3d8SRajkumar Manoharan atomic_add(mpdu_count, &htt->num_mpdus_ready); 2518caee728aSVasanthakumar Thiagarajan 2519caee728aSVasanthakumar Thiagarajan ath10k_sta_update_rx_tid_stats_ampdu(ar, peer_id, tid, mpdu_ranges, 2520caee728aSVasanthakumar Thiagarajan num_mpdu_ranges); 25215e3dd157SKalle Valo } 25225e3dd157SKalle Valo 252359465fe4SRajkumar Manoharan static void ath10k_htt_rx_tx_compl_ind(struct ath10k *ar, 25246c5151a9SMichal Kazior struct sk_buff *skb) 25256c5151a9SMichal Kazior { 25266c5151a9SMichal Kazior struct ath10k_htt *htt = &ar->htt; 25276c5151a9SMichal Kazior struct htt_resp *resp = (struct htt_resp *)skb->data; 25286c5151a9SMichal Kazior struct htt_tx_done tx_done = {}; 25296c5151a9SMichal Kazior int status = MS(resp->data_tx_completion.flags, HTT_DATA_TX_STATUS); 2530c7fd8d23SBalaji Pothunoori __le16 msdu_id, *msdus; 2531c7fd8d23SBalaji Pothunoori bool rssi_enabled = false; 2532bb31b7cbSManikanta Pubbisetty u8 msdu_count = 0, num_airtime_records, tid; 25336ddc3860SAbhishek Ambure int i, htt_pad = 0; 2534bb31b7cbSManikanta Pubbisetty struct htt_data_tx_compl_ppdu_dur *ppdu_info; 2535bb31b7cbSManikanta Pubbisetty struct ath10k_peer *peer; 2536bb31b7cbSManikanta Pubbisetty u16 ppdu_info_offset = 0, peer_id; 2537bb31b7cbSManikanta Pubbisetty u32 tx_duration; 25386c5151a9SMichal Kazior 25396c5151a9SMichal Kazior switch (status) { 25406c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_NO_ACK: 254159465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_NOACK; 25426c5151a9SMichal Kazior break; 25436c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_OK: 254459465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_ACK; 25456c5151a9SMichal Kazior break; 25466c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_DISCARD: 25476c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_POSTPONE: 25486c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_DOWNLOAD_FAIL: 254959465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_DISCARD; 25506c5151a9SMichal Kazior break; 25516c5151a9SMichal Kazior default: 25527aa7a72aSMichal Kazior ath10k_warn(ar, "unhandled tx completion status %d\n", status); 255359465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_DISCARD; 25546c5151a9SMichal Kazior break; 25556c5151a9SMichal Kazior } 25566c5151a9SMichal Kazior 25577aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx completion num_msdus %d\n", 25586c5151a9SMichal Kazior resp->data_tx_completion.num_msdus); 25596c5151a9SMichal Kazior 2560c7fd8d23SBalaji Pothunoori msdu_count = resp->data_tx_completion.num_msdus; 2561bb31b7cbSManikanta Pubbisetty msdus = resp->data_tx_completion.msdus; 25626ddc3860SAbhishek Ambure rssi_enabled = ath10k_is_rssi_enable(&ar->hw_params, resp); 2563c7fd8d23SBalaji Pothunoori 25646ddc3860SAbhishek Ambure if (rssi_enabled) 25656ddc3860SAbhishek Ambure htt_pad = ath10k_tx_data_rssi_get_pad_bytes(&ar->hw_params, 25666ddc3860SAbhishek Ambure resp); 2567c7fd8d23SBalaji Pothunoori 2568c7fd8d23SBalaji Pothunoori for (i = 0; i < msdu_count; i++) { 2569c7fd8d23SBalaji Pothunoori msdu_id = msdus[i]; 25706c5151a9SMichal Kazior tx_done.msdu_id = __le16_to_cpu(msdu_id); 257159465fe4SRajkumar Manoharan 2572c7fd8d23SBalaji Pothunoori if (rssi_enabled) { 2573c7fd8d23SBalaji Pothunoori /* Total no of MSDUs should be even, 2574c7fd8d23SBalaji Pothunoori * if odd MSDUs are sent firmware fills 2575c7fd8d23SBalaji Pothunoori * last msdu id with 0xffff 2576c7fd8d23SBalaji Pothunoori */ 2577c7fd8d23SBalaji Pothunoori if (msdu_count & 0x01) { 25786ddc3860SAbhishek Ambure msdu_id = msdus[msdu_count + i + 1 + htt_pad]; 2579c7fd8d23SBalaji Pothunoori tx_done.ack_rssi = __le16_to_cpu(msdu_id); 2580c7fd8d23SBalaji Pothunoori } else { 25816ddc3860SAbhishek Ambure msdu_id = msdus[msdu_count + i + htt_pad]; 2582c7fd8d23SBalaji Pothunoori tx_done.ack_rssi = __le16_to_cpu(msdu_id); 2583c7fd8d23SBalaji Pothunoori } 2584c7fd8d23SBalaji Pothunoori } 2585c7fd8d23SBalaji Pothunoori 258659465fe4SRajkumar Manoharan /* kfifo_put: In practice firmware shouldn't fire off per-CE 258759465fe4SRajkumar Manoharan * interrupt and main interrupt (MSI/-X range case) for the same 258859465fe4SRajkumar Manoharan * HTC service so it should be safe to use kfifo_put w/o lock. 258959465fe4SRajkumar Manoharan * 259059465fe4SRajkumar Manoharan * From kfifo_put() documentation: 259159465fe4SRajkumar Manoharan * Note that with only one concurrent reader and one concurrent 259259465fe4SRajkumar Manoharan * writer, you don't need extra locking to use these macro. 259359465fe4SRajkumar Manoharan */ 2594e2a6b711SAlagu Sankar if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) { 2595e2a6b711SAlagu Sankar ath10k_txrx_tx_unref(htt, &tx_done); 2596e2a6b711SAlagu Sankar } else if (!kfifo_put(&htt->txdone_fifo, tx_done)) { 259759465fe4SRajkumar Manoharan ath10k_warn(ar, "txdone fifo overrun, msdu_id %d status %d\n", 259859465fe4SRajkumar Manoharan tx_done.msdu_id, tx_done.status); 25996c5151a9SMichal Kazior ath10k_txrx_tx_unref(htt, &tx_done); 26006c5151a9SMichal Kazior } 26016c5151a9SMichal Kazior } 2602bb31b7cbSManikanta Pubbisetty 2603bb31b7cbSManikanta Pubbisetty if (!(resp->data_tx_completion.flags2 & HTT_TX_CMPL_FLAG_PPDU_DURATION_PRESENT)) 2604bb31b7cbSManikanta Pubbisetty return; 2605bb31b7cbSManikanta Pubbisetty 2606bb31b7cbSManikanta Pubbisetty ppdu_info_offset = (msdu_count & 0x01) ? msdu_count + 1 : msdu_count; 2607bb31b7cbSManikanta Pubbisetty 2608bb31b7cbSManikanta Pubbisetty if (rssi_enabled) 2609bb31b7cbSManikanta Pubbisetty ppdu_info_offset += ppdu_info_offset; 2610bb31b7cbSManikanta Pubbisetty 2611bb31b7cbSManikanta Pubbisetty if (resp->data_tx_completion.flags2 & 2612bb31b7cbSManikanta Pubbisetty (HTT_TX_CMPL_FLAG_PPID_PRESENT | HTT_TX_CMPL_FLAG_PA_PRESENT)) 2613bb31b7cbSManikanta Pubbisetty ppdu_info_offset += 2; 2614bb31b7cbSManikanta Pubbisetty 2615bb31b7cbSManikanta Pubbisetty ppdu_info = (struct htt_data_tx_compl_ppdu_dur *)&msdus[ppdu_info_offset]; 2616bb31b7cbSManikanta Pubbisetty num_airtime_records = FIELD_GET(HTT_TX_COMPL_PPDU_DUR_INFO0_NUM_ENTRIES_MASK, 2617bb31b7cbSManikanta Pubbisetty __le32_to_cpu(ppdu_info->info0)); 2618bb31b7cbSManikanta Pubbisetty 2619bb31b7cbSManikanta Pubbisetty for (i = 0; i < num_airtime_records; i++) { 2620bb31b7cbSManikanta Pubbisetty struct htt_data_tx_ppdu_dur *ppdu_dur; 2621bb31b7cbSManikanta Pubbisetty u32 info0; 2622bb31b7cbSManikanta Pubbisetty 2623bb31b7cbSManikanta Pubbisetty ppdu_dur = &ppdu_info->ppdu_dur[i]; 2624bb31b7cbSManikanta Pubbisetty info0 = __le32_to_cpu(ppdu_dur->info0); 2625bb31b7cbSManikanta Pubbisetty 2626bb31b7cbSManikanta Pubbisetty peer_id = FIELD_GET(HTT_TX_PPDU_DUR_INFO0_PEER_ID_MASK, 2627bb31b7cbSManikanta Pubbisetty info0); 2628bb31b7cbSManikanta Pubbisetty rcu_read_lock(); 2629bb31b7cbSManikanta Pubbisetty spin_lock_bh(&ar->data_lock); 2630bb31b7cbSManikanta Pubbisetty 2631bb31b7cbSManikanta Pubbisetty peer = ath10k_peer_find_by_id(ar, peer_id); 2632bb31b7cbSManikanta Pubbisetty if (!peer) { 2633bb31b7cbSManikanta Pubbisetty spin_unlock_bh(&ar->data_lock); 2634bb31b7cbSManikanta Pubbisetty rcu_read_unlock(); 2635bb31b7cbSManikanta Pubbisetty continue; 2636bb31b7cbSManikanta Pubbisetty } 2637bb31b7cbSManikanta Pubbisetty 2638bb31b7cbSManikanta Pubbisetty tid = FIELD_GET(HTT_TX_PPDU_DUR_INFO0_TID_MASK, info0); 2639bb31b7cbSManikanta Pubbisetty tx_duration = __le32_to_cpu(ppdu_dur->tx_duration); 2640bb31b7cbSManikanta Pubbisetty 2641bb31b7cbSManikanta Pubbisetty ieee80211_sta_register_airtime(peer->sta, tid, tx_duration, 0); 2642bb31b7cbSManikanta Pubbisetty 2643bb31b7cbSManikanta Pubbisetty spin_unlock_bh(&ar->data_lock); 2644bb31b7cbSManikanta Pubbisetty rcu_read_unlock(); 2645bb31b7cbSManikanta Pubbisetty } 264659465fe4SRajkumar Manoharan } 26476c5151a9SMichal Kazior 2648aa5b4fbcSMichal Kazior static void ath10k_htt_rx_addba(struct ath10k *ar, struct htt_resp *resp) 2649aa5b4fbcSMichal Kazior { 2650aa5b4fbcSMichal Kazior struct htt_rx_addba *ev = &resp->rx_addba; 2651aa5b4fbcSMichal Kazior struct ath10k_peer *peer; 2652aa5b4fbcSMichal Kazior struct ath10k_vif *arvif; 2653aa5b4fbcSMichal Kazior u16 info0, tid, peer_id; 2654aa5b4fbcSMichal Kazior 2655aa5b4fbcSMichal Kazior info0 = __le16_to_cpu(ev->info0); 2656aa5b4fbcSMichal Kazior tid = MS(info0, HTT_RX_BA_INFO0_TID); 2657aa5b4fbcSMichal Kazior peer_id = MS(info0, HTT_RX_BA_INFO0_PEER_ID); 2658aa5b4fbcSMichal Kazior 26597aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, 2660aa5b4fbcSMichal Kazior "htt rx addba tid %hu peer_id %hu size %hhu\n", 2661aa5b4fbcSMichal Kazior tid, peer_id, ev->window_size); 2662aa5b4fbcSMichal Kazior 2663aa5b4fbcSMichal Kazior spin_lock_bh(&ar->data_lock); 2664aa5b4fbcSMichal Kazior peer = ath10k_peer_find_by_id(ar, peer_id); 2665aa5b4fbcSMichal Kazior if (!peer) { 26667aa7a72aSMichal Kazior ath10k_warn(ar, "received addba event for invalid peer_id: %hu\n", 2667aa5b4fbcSMichal Kazior peer_id); 2668aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock); 2669aa5b4fbcSMichal Kazior return; 2670aa5b4fbcSMichal Kazior } 2671aa5b4fbcSMichal Kazior 2672aa5b4fbcSMichal Kazior arvif = ath10k_get_arvif(ar, peer->vdev_id); 2673aa5b4fbcSMichal Kazior if (!arvif) { 26747aa7a72aSMichal Kazior ath10k_warn(ar, "received addba event for invalid vdev_id: %u\n", 2675aa5b4fbcSMichal Kazior peer->vdev_id); 2676aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock); 2677aa5b4fbcSMichal Kazior return; 2678aa5b4fbcSMichal Kazior } 2679aa5b4fbcSMichal Kazior 26807aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, 2681aa5b4fbcSMichal Kazior "htt rx start rx ba session sta %pM tid %hu size %hhu\n", 2682aa5b4fbcSMichal Kazior peer->addr, tid, ev->window_size); 2683aa5b4fbcSMichal Kazior 2684aa5b4fbcSMichal Kazior ieee80211_start_rx_ba_session_offl(arvif->vif, peer->addr, tid); 2685aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock); 2686aa5b4fbcSMichal Kazior } 2687aa5b4fbcSMichal Kazior 2688aa5b4fbcSMichal Kazior static void ath10k_htt_rx_delba(struct ath10k *ar, struct htt_resp *resp) 2689aa5b4fbcSMichal Kazior { 2690aa5b4fbcSMichal Kazior struct htt_rx_delba *ev = &resp->rx_delba; 2691aa5b4fbcSMichal Kazior struct ath10k_peer *peer; 2692aa5b4fbcSMichal Kazior struct ath10k_vif *arvif; 2693aa5b4fbcSMichal Kazior u16 info0, tid, peer_id; 2694aa5b4fbcSMichal Kazior 2695aa5b4fbcSMichal Kazior info0 = __le16_to_cpu(ev->info0); 2696aa5b4fbcSMichal Kazior tid = MS(info0, HTT_RX_BA_INFO0_TID); 2697aa5b4fbcSMichal Kazior peer_id = MS(info0, HTT_RX_BA_INFO0_PEER_ID); 2698aa5b4fbcSMichal Kazior 26997aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, 2700aa5b4fbcSMichal Kazior "htt rx delba tid %hu peer_id %hu\n", 2701aa5b4fbcSMichal Kazior tid, peer_id); 2702aa5b4fbcSMichal Kazior 2703aa5b4fbcSMichal Kazior spin_lock_bh(&ar->data_lock); 2704aa5b4fbcSMichal Kazior peer = ath10k_peer_find_by_id(ar, peer_id); 2705aa5b4fbcSMichal Kazior if (!peer) { 27067aa7a72aSMichal Kazior ath10k_warn(ar, "received addba event for invalid peer_id: %hu\n", 2707aa5b4fbcSMichal Kazior peer_id); 2708aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock); 2709aa5b4fbcSMichal Kazior return; 2710aa5b4fbcSMichal Kazior } 2711aa5b4fbcSMichal Kazior 2712aa5b4fbcSMichal Kazior arvif = ath10k_get_arvif(ar, peer->vdev_id); 2713aa5b4fbcSMichal Kazior if (!arvif) { 27147aa7a72aSMichal Kazior ath10k_warn(ar, "received addba event for invalid vdev_id: %u\n", 2715aa5b4fbcSMichal Kazior peer->vdev_id); 2716aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock); 2717aa5b4fbcSMichal Kazior return; 2718aa5b4fbcSMichal Kazior } 2719aa5b4fbcSMichal Kazior 27207aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, 2721aa5b4fbcSMichal Kazior "htt rx stop rx ba session sta %pM tid %hu\n", 2722aa5b4fbcSMichal Kazior peer->addr, tid); 2723aa5b4fbcSMichal Kazior 2724aa5b4fbcSMichal Kazior ieee80211_stop_rx_ba_session_offl(arvif->vif, peer->addr, tid); 2725aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock); 2726aa5b4fbcSMichal Kazior } 2727aa5b4fbcSMichal Kazior 2728c545070eSMichal Kazior static int ath10k_htt_rx_extract_amsdu(struct sk_buff_head *list, 2729e48e9c42SKalle Valo struct sk_buff_head *amsdu) 2730c545070eSMichal Kazior { 2731c545070eSMichal Kazior struct sk_buff *msdu; 2732c545070eSMichal Kazior struct htt_rx_desc *rxd; 2733c545070eSMichal Kazior 2734c545070eSMichal Kazior if (skb_queue_empty(list)) 2735c545070eSMichal Kazior return -ENOBUFS; 2736c545070eSMichal Kazior 2737c545070eSMichal Kazior if (WARN_ON(!skb_queue_empty(amsdu))) 2738c545070eSMichal Kazior return -EINVAL; 2739c545070eSMichal Kazior 2740e48e9c42SKalle Valo while ((msdu = __skb_dequeue(list))) { 2741c545070eSMichal Kazior __skb_queue_tail(amsdu, msdu); 2742c545070eSMichal Kazior 2743c545070eSMichal Kazior rxd = (void *)msdu->data - sizeof(*rxd); 27441f5dbfbbSPeter Oh if (rxd->msdu_end.common.info0 & 2745c545070eSMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU)) 2746c545070eSMichal Kazior break; 2747c545070eSMichal Kazior } 2748c545070eSMichal Kazior 2749c545070eSMichal Kazior msdu = skb_peek_tail(amsdu); 2750c545070eSMichal Kazior rxd = (void *)msdu->data - sizeof(*rxd); 27511f5dbfbbSPeter Oh if (!(rxd->msdu_end.common.info0 & 2752c545070eSMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU))) { 2753c545070eSMichal Kazior skb_queue_splice_init(amsdu, list); 2754c545070eSMichal Kazior return -EAGAIN; 2755c545070eSMichal Kazior } 2756c545070eSMichal Kazior 2757c545070eSMichal Kazior return 0; 2758c545070eSMichal Kazior } 2759c545070eSMichal Kazior 2760c545070eSMichal Kazior static void ath10k_htt_rx_h_rx_offload_prot(struct ieee80211_rx_status *status, 2761c545070eSMichal Kazior struct sk_buff *skb) 2762c545070eSMichal Kazior { 2763c545070eSMichal Kazior struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; 2764c545070eSMichal Kazior 2765c545070eSMichal Kazior if (!ieee80211_has_protected(hdr->frame_control)) 2766c545070eSMichal Kazior return; 2767c545070eSMichal Kazior 2768c545070eSMichal Kazior /* Offloaded frames are already decrypted but firmware insists they are 2769c545070eSMichal Kazior * protected in the 802.11 header. Strip the flag. Otherwise mac80211 2770c545070eSMichal Kazior * will drop the frame. 2771c545070eSMichal Kazior */ 2772c545070eSMichal Kazior 2773c545070eSMichal Kazior hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED); 2774c545070eSMichal Kazior status->flag |= RX_FLAG_DECRYPTED | 2775c545070eSMichal Kazior RX_FLAG_IV_STRIPPED | 2776c545070eSMichal Kazior RX_FLAG_MMIC_STRIPPED; 2777c545070eSMichal Kazior } 2778c545070eSMichal Kazior 2779deba1b9eSRajkumar Manoharan static void ath10k_htt_rx_h_rx_offload(struct ath10k *ar, 2780c545070eSMichal Kazior struct sk_buff_head *list) 2781c545070eSMichal Kazior { 2782c545070eSMichal Kazior struct ath10k_htt *htt = &ar->htt; 2783c545070eSMichal Kazior struct ieee80211_rx_status *status = &htt->rx_status; 2784c545070eSMichal Kazior struct htt_rx_offload_msdu *rx; 2785c545070eSMichal Kazior struct sk_buff *msdu; 2786c545070eSMichal Kazior size_t offset; 2787c545070eSMichal Kazior 2788c545070eSMichal Kazior while ((msdu = __skb_dequeue(list))) { 2789c545070eSMichal Kazior /* Offloaded frames don't have Rx descriptor. Instead they have 2790c545070eSMichal Kazior * a short meta information header. 2791c545070eSMichal Kazior */ 2792c545070eSMichal Kazior 2793c545070eSMichal Kazior rx = (void *)msdu->data; 2794c545070eSMichal Kazior 2795c545070eSMichal Kazior skb_put(msdu, sizeof(*rx)); 2796c545070eSMichal Kazior skb_pull(msdu, sizeof(*rx)); 2797c545070eSMichal Kazior 2798c545070eSMichal Kazior if (skb_tailroom(msdu) < __le16_to_cpu(rx->msdu_len)) { 2799c545070eSMichal Kazior ath10k_warn(ar, "dropping frame: offloaded rx msdu is too long!\n"); 2800c545070eSMichal Kazior dev_kfree_skb_any(msdu); 2801c545070eSMichal Kazior continue; 2802c545070eSMichal Kazior } 2803c545070eSMichal Kazior 2804c545070eSMichal Kazior skb_put(msdu, __le16_to_cpu(rx->msdu_len)); 2805c545070eSMichal Kazior 2806c545070eSMichal Kazior /* Offloaded rx header length isn't multiple of 2 nor 4 so the 2807c545070eSMichal Kazior * actual payload is unaligned. Align the frame. Otherwise 2808c545070eSMichal Kazior * mac80211 complains. This shouldn't reduce performance much 2809c545070eSMichal Kazior * because these offloaded frames are rare. 2810c545070eSMichal Kazior */ 2811c545070eSMichal Kazior offset = 4 - ((unsigned long)msdu->data & 3); 2812c545070eSMichal Kazior skb_put(msdu, offset); 2813c545070eSMichal Kazior memmove(msdu->data + offset, msdu->data, msdu->len); 2814c545070eSMichal Kazior skb_pull(msdu, offset); 2815c545070eSMichal Kazior 2816c545070eSMichal Kazior /* FIXME: The frame is NWifi. Re-construct QoS Control 2817c545070eSMichal Kazior * if possible later. 2818c545070eSMichal Kazior */ 2819c545070eSMichal Kazior 2820c545070eSMichal Kazior memset(status, 0, sizeof(*status)); 2821c545070eSMichal Kazior status->flag |= RX_FLAG_NO_SIGNAL_VAL; 2822c545070eSMichal Kazior 2823c545070eSMichal Kazior ath10k_htt_rx_h_rx_offload_prot(status, msdu); 2824500ff9f9SMichal Kazior ath10k_htt_rx_h_channel(ar, status, NULL, rx->vdev_id); 2825deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_queue_msdu(ar, status, msdu); 2826c545070eSMichal Kazior } 2827c545070eSMichal Kazior } 2828c545070eSMichal Kazior 2829e48e9c42SKalle Valo static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb) 2830c545070eSMichal Kazior { 2831c545070eSMichal Kazior struct ath10k_htt *htt = &ar->htt; 2832c545070eSMichal Kazior struct htt_resp *resp = (void *)skb->data; 2833c545070eSMichal Kazior struct ieee80211_rx_status *status = &htt->rx_status; 2834c545070eSMichal Kazior struct sk_buff_head list; 2835c545070eSMichal Kazior struct sk_buff_head amsdu; 2836c545070eSMichal Kazior u16 peer_id; 2837c545070eSMichal Kazior u16 msdu_count; 2838c545070eSMichal Kazior u8 vdev_id; 2839c545070eSMichal Kazior u8 tid; 2840c545070eSMichal Kazior bool offload; 2841c545070eSMichal Kazior bool frag; 2842deba1b9eSRajkumar Manoharan int ret; 2843c545070eSMichal Kazior 2844c545070eSMichal Kazior lockdep_assert_held(&htt->rx_ring.lock); 2845c545070eSMichal Kazior 2846c545070eSMichal Kazior if (htt->rx_confused) 28473c97f5deSRajkumar Manoharan return -EIO; 2848c545070eSMichal Kazior 2849c545070eSMichal Kazior skb_pull(skb, sizeof(resp->hdr)); 2850c545070eSMichal Kazior skb_pull(skb, sizeof(resp->rx_in_ord_ind)); 2851c545070eSMichal Kazior 2852c545070eSMichal Kazior peer_id = __le16_to_cpu(resp->rx_in_ord_ind.peer_id); 2853c545070eSMichal Kazior msdu_count = __le16_to_cpu(resp->rx_in_ord_ind.msdu_count); 2854c545070eSMichal Kazior vdev_id = resp->rx_in_ord_ind.vdev_id; 2855c545070eSMichal Kazior tid = SM(resp->rx_in_ord_ind.info, HTT_RX_IN_ORD_IND_INFO_TID); 2856c545070eSMichal Kazior offload = !!(resp->rx_in_ord_ind.info & 2857c545070eSMichal Kazior HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK); 2858c545070eSMichal Kazior frag = !!(resp->rx_in_ord_ind.info & HTT_RX_IN_ORD_IND_INFO_FRAG_MASK); 2859c545070eSMichal Kazior 2860c545070eSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, 2861c545070eSMichal Kazior "htt rx in ord vdev %i peer %i tid %i offload %i frag %i msdu count %i\n", 2862c545070eSMichal Kazior vdev_id, peer_id, tid, offload, frag, msdu_count); 2863c545070eSMichal Kazior 28643b0b55b1SGovind Singh if (skb->len < msdu_count * sizeof(*resp->rx_in_ord_ind.msdu_descs32)) { 2865c545070eSMichal Kazior ath10k_warn(ar, "dropping invalid in order rx indication\n"); 28663c97f5deSRajkumar Manoharan return -EINVAL; 2867c545070eSMichal Kazior } 2868c545070eSMichal Kazior 2869c545070eSMichal Kazior /* The event can deliver more than 1 A-MSDU. Each A-MSDU is later 2870c545070eSMichal Kazior * extracted and processed. 2871c545070eSMichal Kazior */ 2872c545070eSMichal Kazior __skb_queue_head_init(&list); 28733b0b55b1SGovind Singh if (ar->hw_params.target_64bit) 28743b0b55b1SGovind Singh ret = ath10k_htt_rx_pop_paddr64_list(htt, &resp->rx_in_ord_ind, 28753b0b55b1SGovind Singh &list); 28763b0b55b1SGovind Singh else 28773b0b55b1SGovind Singh ret = ath10k_htt_rx_pop_paddr32_list(htt, &resp->rx_in_ord_ind, 28783b0b55b1SGovind Singh &list); 28793b0b55b1SGovind Singh 2880c545070eSMichal Kazior if (ret < 0) { 2881c545070eSMichal Kazior ath10k_warn(ar, "failed to pop paddr list: %d\n", ret); 2882c545070eSMichal Kazior htt->rx_confused = true; 28833c97f5deSRajkumar Manoharan return -EIO; 2884c545070eSMichal Kazior } 2885c545070eSMichal Kazior 2886c545070eSMichal Kazior /* Offloaded frames are very different and need to be handled 2887c545070eSMichal Kazior * separately. 2888c545070eSMichal Kazior */ 2889c545070eSMichal Kazior if (offload) 2890deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_rx_offload(ar, &list); 2891c545070eSMichal Kazior 2892e48e9c42SKalle Valo while (!skb_queue_empty(&list)) { 2893c545070eSMichal Kazior __skb_queue_head_init(&amsdu); 2894e48e9c42SKalle Valo ret = ath10k_htt_rx_extract_amsdu(&list, &amsdu); 2895c545070eSMichal Kazior switch (ret) { 2896c545070eSMichal Kazior case 0: 2897c545070eSMichal Kazior /* Note: The in-order indication may report interleaved 2898c545070eSMichal Kazior * frames from different PPDUs meaning reported rx rate 2899c545070eSMichal Kazior * to mac80211 isn't accurate/reliable. It's still 2900c545070eSMichal Kazior * better to report something than nothing though. This 2901c545070eSMichal Kazior * should still give an idea about rx rate to the user. 2902c545070eSMichal Kazior */ 2903500ff9f9SMichal Kazior ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id); 2904caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_filter(ar, &amsdu, status, NULL); 2905caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_mpdu(ar, &amsdu, status, false, NULL, 2906caee728aSVasanthakumar Thiagarajan NULL); 2907deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_enqueue(ar, &amsdu, status); 2908c545070eSMichal Kazior break; 2909c545070eSMichal Kazior case -EAGAIN: 2910c545070eSMichal Kazior /* fall through */ 2911c545070eSMichal Kazior default: 2912c545070eSMichal Kazior /* Should not happen. */ 2913c545070eSMichal Kazior ath10k_warn(ar, "failed to extract amsdu: %d\n", ret); 2914c545070eSMichal Kazior htt->rx_confused = true; 2915c545070eSMichal Kazior __skb_queue_purge(&list); 29163c97f5deSRajkumar Manoharan return -EIO; 2917c545070eSMichal Kazior } 2918c545070eSMichal Kazior } 2919deba1b9eSRajkumar Manoharan return ret; 2920c545070eSMichal Kazior } 2921c545070eSMichal Kazior 2922839ae637SMichal Kazior static void ath10k_htt_rx_tx_fetch_resp_id_confirm(struct ath10k *ar, 2923839ae637SMichal Kazior const __le32 *resp_ids, 2924839ae637SMichal Kazior int num_resp_ids) 2925839ae637SMichal Kazior { 2926839ae637SMichal Kazior int i; 2927839ae637SMichal Kazior u32 resp_id; 2928839ae637SMichal Kazior 2929839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch confirm num_resp_ids %d\n", 2930839ae637SMichal Kazior num_resp_ids); 2931839ae637SMichal Kazior 2932839ae637SMichal Kazior for (i = 0; i < num_resp_ids; i++) { 2933839ae637SMichal Kazior resp_id = le32_to_cpu(resp_ids[i]); 2934839ae637SMichal Kazior 2935839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch confirm resp_id %u\n", 2936839ae637SMichal Kazior resp_id); 2937839ae637SMichal Kazior 2938839ae637SMichal Kazior /* TODO: free resp_id */ 2939839ae637SMichal Kazior } 2940839ae637SMichal Kazior } 2941839ae637SMichal Kazior 2942839ae637SMichal Kazior static void ath10k_htt_rx_tx_fetch_ind(struct ath10k *ar, struct sk_buff *skb) 2943839ae637SMichal Kazior { 2944426e10eaSMichal Kazior struct ieee80211_hw *hw = ar->hw; 2945426e10eaSMichal Kazior struct ieee80211_txq *txq; 2946839ae637SMichal Kazior struct htt_resp *resp = (struct htt_resp *)skb->data; 2947839ae637SMichal Kazior struct htt_tx_fetch_record *record; 2948839ae637SMichal Kazior size_t len; 2949839ae637SMichal Kazior size_t max_num_bytes; 2950839ae637SMichal Kazior size_t max_num_msdus; 2951426e10eaSMichal Kazior size_t num_bytes; 2952426e10eaSMichal Kazior size_t num_msdus; 2953839ae637SMichal Kazior const __le32 *resp_ids; 2954839ae637SMichal Kazior u16 num_records; 2955839ae637SMichal Kazior u16 num_resp_ids; 2956839ae637SMichal Kazior u16 peer_id; 2957839ae637SMichal Kazior u8 tid; 2958426e10eaSMichal Kazior int ret; 2959839ae637SMichal Kazior int i; 2960bb2edb73SToke Høiland-Jørgensen bool may_tx; 2961839ae637SMichal Kazior 2962839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch ind\n"); 2963839ae637SMichal Kazior 2964839ae637SMichal Kazior len = sizeof(resp->hdr) + sizeof(resp->tx_fetch_ind); 2965839ae637SMichal Kazior if (unlikely(skb->len < len)) { 2966839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_ind event: buffer too short\n"); 2967839ae637SMichal Kazior return; 2968839ae637SMichal Kazior } 2969839ae637SMichal Kazior 2970839ae637SMichal Kazior num_records = le16_to_cpu(resp->tx_fetch_ind.num_records); 2971839ae637SMichal Kazior num_resp_ids = le16_to_cpu(resp->tx_fetch_ind.num_resp_ids); 2972839ae637SMichal Kazior 2973839ae637SMichal Kazior len += sizeof(resp->tx_fetch_ind.records[0]) * num_records; 2974839ae637SMichal Kazior len += sizeof(resp->tx_fetch_ind.resp_ids[0]) * num_resp_ids; 2975839ae637SMichal Kazior 2976839ae637SMichal Kazior if (unlikely(skb->len < len)) { 2977839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_ind event: too many records/resp_ids\n"); 2978839ae637SMichal Kazior return; 2979839ae637SMichal Kazior } 2980839ae637SMichal Kazior 2981839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch ind num records %hu num resps %hu seq %hu\n", 2982839ae637SMichal Kazior num_records, num_resp_ids, 2983839ae637SMichal Kazior le16_to_cpu(resp->tx_fetch_ind.fetch_seq_num)); 2984839ae637SMichal Kazior 2985426e10eaSMichal Kazior if (!ar->htt.tx_q_state.enabled) { 2986426e10eaSMichal Kazior ath10k_warn(ar, "received unexpected tx_fetch_ind event: not enabled\n"); 2987426e10eaSMichal Kazior return; 2988426e10eaSMichal Kazior } 2989426e10eaSMichal Kazior 2990426e10eaSMichal Kazior if (ar->htt.tx_q_state.mode == HTT_TX_MODE_SWITCH_PUSH) { 2991426e10eaSMichal Kazior ath10k_warn(ar, "received unexpected tx_fetch_ind event: in push mode\n"); 2992426e10eaSMichal Kazior return; 2993426e10eaSMichal Kazior } 2994426e10eaSMichal Kazior 2995426e10eaSMichal Kazior rcu_read_lock(); 2996839ae637SMichal Kazior 2997839ae637SMichal Kazior for (i = 0; i < num_records; i++) { 2998839ae637SMichal Kazior record = &resp->tx_fetch_ind.records[i]; 2999839ae637SMichal Kazior peer_id = MS(le16_to_cpu(record->info), 3000839ae637SMichal Kazior HTT_TX_FETCH_RECORD_INFO_PEER_ID); 3001839ae637SMichal Kazior tid = MS(le16_to_cpu(record->info), 3002839ae637SMichal Kazior HTT_TX_FETCH_RECORD_INFO_TID); 3003839ae637SMichal Kazior max_num_msdus = le16_to_cpu(record->num_msdus); 3004839ae637SMichal Kazior max_num_bytes = le32_to_cpu(record->num_bytes); 3005839ae637SMichal Kazior 3006839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch record %i peer_id %hu tid %hhu msdus %zu bytes %zu\n", 3007839ae637SMichal Kazior i, peer_id, tid, max_num_msdus, max_num_bytes); 3008839ae637SMichal Kazior 3009839ae637SMichal Kazior if (unlikely(peer_id >= ar->htt.tx_q_state.num_peers) || 3010839ae637SMichal Kazior unlikely(tid >= ar->htt.tx_q_state.num_tids)) { 3011839ae637SMichal Kazior ath10k_warn(ar, "received out of range peer_id %hu tid %hhu\n", 3012839ae637SMichal Kazior peer_id, tid); 3013839ae637SMichal Kazior continue; 3014839ae637SMichal Kazior } 3015839ae637SMichal Kazior 3016426e10eaSMichal Kazior spin_lock_bh(&ar->data_lock); 3017426e10eaSMichal Kazior txq = ath10k_mac_txq_lookup(ar, peer_id, tid); 3018426e10eaSMichal Kazior spin_unlock_bh(&ar->data_lock); 3019426e10eaSMichal Kazior 3020426e10eaSMichal Kazior /* It is okay to release the lock and use txq because RCU read 3021426e10eaSMichal Kazior * lock is held. 3022426e10eaSMichal Kazior */ 3023426e10eaSMichal Kazior 3024426e10eaSMichal Kazior if (unlikely(!txq)) { 3025426e10eaSMichal Kazior ath10k_warn(ar, "failed to lookup txq for peer_id %hu tid %hhu\n", 3026426e10eaSMichal Kazior peer_id, tid); 3027426e10eaSMichal Kazior continue; 3028839ae637SMichal Kazior } 3029839ae637SMichal Kazior 3030426e10eaSMichal Kazior num_msdus = 0; 3031426e10eaSMichal Kazior num_bytes = 0; 3032426e10eaSMichal Kazior 3033bb2edb73SToke Høiland-Jørgensen ieee80211_txq_schedule_start(hw, txq->ac); 3034bb2edb73SToke Høiland-Jørgensen may_tx = ieee80211_txq_may_transmit(hw, txq); 3035426e10eaSMichal Kazior while (num_msdus < max_num_msdus && 3036426e10eaSMichal Kazior num_bytes < max_num_bytes) { 3037bb2edb73SToke Høiland-Jørgensen if (!may_tx) 3038bb2edb73SToke Høiland-Jørgensen break; 3039bb2edb73SToke Høiland-Jørgensen 3040426e10eaSMichal Kazior ret = ath10k_mac_tx_push_txq(hw, txq); 3041426e10eaSMichal Kazior if (ret < 0) 3042426e10eaSMichal Kazior break; 3043426e10eaSMichal Kazior 3044426e10eaSMichal Kazior num_msdus++; 3045426e10eaSMichal Kazior num_bytes += ret; 3046426e10eaSMichal Kazior } 30472b4a6698SFelix Fietkau ieee80211_return_txq(hw, txq, false); 3048bb2edb73SToke Høiland-Jørgensen ieee80211_txq_schedule_end(hw, txq->ac); 3049426e10eaSMichal Kazior 3050426e10eaSMichal Kazior record->num_msdus = cpu_to_le16(num_msdus); 3051426e10eaSMichal Kazior record->num_bytes = cpu_to_le32(num_bytes); 3052426e10eaSMichal Kazior 3053426e10eaSMichal Kazior ath10k_htt_tx_txq_recalc(hw, txq); 3054426e10eaSMichal Kazior } 3055426e10eaSMichal Kazior 3056426e10eaSMichal Kazior rcu_read_unlock(); 3057426e10eaSMichal Kazior 3058839ae637SMichal Kazior resp_ids = ath10k_htt_get_tx_fetch_ind_resp_ids(&resp->tx_fetch_ind); 3059839ae637SMichal Kazior ath10k_htt_rx_tx_fetch_resp_id_confirm(ar, resp_ids, num_resp_ids); 3060839ae637SMichal Kazior 3061426e10eaSMichal Kazior ret = ath10k_htt_tx_fetch_resp(ar, 3062426e10eaSMichal Kazior resp->tx_fetch_ind.token, 3063426e10eaSMichal Kazior resp->tx_fetch_ind.fetch_seq_num, 3064426e10eaSMichal Kazior resp->tx_fetch_ind.records, 3065426e10eaSMichal Kazior num_records); 3066426e10eaSMichal Kazior if (unlikely(ret)) { 3067426e10eaSMichal Kazior ath10k_warn(ar, "failed to submit tx fetch resp for token 0x%08x: %d\n", 3068426e10eaSMichal Kazior le32_to_cpu(resp->tx_fetch_ind.token), ret); 3069426e10eaSMichal Kazior /* FIXME: request fw restart */ 3070426e10eaSMichal Kazior } 3071426e10eaSMichal Kazior 3072426e10eaSMichal Kazior ath10k_htt_tx_txq_sync(ar); 3073839ae637SMichal Kazior } 3074839ae637SMichal Kazior 3075839ae637SMichal Kazior static void ath10k_htt_rx_tx_fetch_confirm(struct ath10k *ar, 3076839ae637SMichal Kazior struct sk_buff *skb) 3077839ae637SMichal Kazior { 3078839ae637SMichal Kazior const struct htt_resp *resp = (void *)skb->data; 3079839ae637SMichal Kazior size_t len; 3080839ae637SMichal Kazior int num_resp_ids; 3081839ae637SMichal Kazior 3082839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch confirm\n"); 3083839ae637SMichal Kazior 3084839ae637SMichal Kazior len = sizeof(resp->hdr) + sizeof(resp->tx_fetch_confirm); 3085839ae637SMichal Kazior if (unlikely(skb->len < len)) { 3086839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_confirm event: buffer too short\n"); 3087839ae637SMichal Kazior return; 3088839ae637SMichal Kazior } 3089839ae637SMichal Kazior 3090839ae637SMichal Kazior num_resp_ids = le16_to_cpu(resp->tx_fetch_confirm.num_resp_ids); 3091839ae637SMichal Kazior len += sizeof(resp->tx_fetch_confirm.resp_ids[0]) * num_resp_ids; 3092839ae637SMichal Kazior 3093839ae637SMichal Kazior if (unlikely(skb->len < len)) { 3094839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_confirm event: resp_ids buffer overflow\n"); 3095839ae637SMichal Kazior return; 3096839ae637SMichal Kazior } 3097839ae637SMichal Kazior 3098839ae637SMichal Kazior ath10k_htt_rx_tx_fetch_resp_id_confirm(ar, 3099839ae637SMichal Kazior resp->tx_fetch_confirm.resp_ids, 3100839ae637SMichal Kazior num_resp_ids); 3101839ae637SMichal Kazior } 3102839ae637SMichal Kazior 3103839ae637SMichal Kazior static void ath10k_htt_rx_tx_mode_switch_ind(struct ath10k *ar, 3104839ae637SMichal Kazior struct sk_buff *skb) 3105839ae637SMichal Kazior { 3106839ae637SMichal Kazior const struct htt_resp *resp = (void *)skb->data; 3107839ae637SMichal Kazior const struct htt_tx_mode_switch_record *record; 3108426e10eaSMichal Kazior struct ieee80211_txq *txq; 3109426e10eaSMichal Kazior struct ath10k_txq *artxq; 3110839ae637SMichal Kazior size_t len; 3111839ae637SMichal Kazior size_t num_records; 3112839ae637SMichal Kazior enum htt_tx_mode_switch_mode mode; 3113839ae637SMichal Kazior bool enable; 3114839ae637SMichal Kazior u16 info0; 3115839ae637SMichal Kazior u16 info1; 3116839ae637SMichal Kazior u16 threshold; 3117839ae637SMichal Kazior u16 peer_id; 3118839ae637SMichal Kazior u8 tid; 3119839ae637SMichal Kazior int i; 3120839ae637SMichal Kazior 3121839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx mode switch ind\n"); 3122839ae637SMichal Kazior 3123839ae637SMichal Kazior len = sizeof(resp->hdr) + sizeof(resp->tx_mode_switch_ind); 3124839ae637SMichal Kazior if (unlikely(skb->len < len)) { 3125839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_mode_switch_ind event: buffer too short\n"); 3126839ae637SMichal Kazior return; 3127839ae637SMichal Kazior } 3128839ae637SMichal Kazior 3129839ae637SMichal Kazior info0 = le16_to_cpu(resp->tx_mode_switch_ind.info0); 3130839ae637SMichal Kazior info1 = le16_to_cpu(resp->tx_mode_switch_ind.info1); 3131839ae637SMichal Kazior 3132839ae637SMichal Kazior enable = !!(info0 & HTT_TX_MODE_SWITCH_IND_INFO0_ENABLE); 3133839ae637SMichal Kazior num_records = MS(info0, HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD); 3134839ae637SMichal Kazior mode = MS(info1, HTT_TX_MODE_SWITCH_IND_INFO1_MODE); 3135839ae637SMichal Kazior threshold = MS(info1, HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD); 3136839ae637SMichal Kazior 3137839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, 3138839ae637SMichal Kazior "htt rx tx mode switch ind info0 0x%04hx info1 0x%04hx enable %d num records %zd mode %d threshold %hu\n", 3139839ae637SMichal Kazior info0, info1, enable, num_records, mode, threshold); 3140839ae637SMichal Kazior 3141839ae637SMichal Kazior len += sizeof(resp->tx_mode_switch_ind.records[0]) * num_records; 3142839ae637SMichal Kazior 3143839ae637SMichal Kazior if (unlikely(skb->len < len)) { 3144839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_mode_switch_mode_ind event: too many records\n"); 3145839ae637SMichal Kazior return; 3146839ae637SMichal Kazior } 3147839ae637SMichal Kazior 3148839ae637SMichal Kazior switch (mode) { 3149839ae637SMichal Kazior case HTT_TX_MODE_SWITCH_PUSH: 3150839ae637SMichal Kazior case HTT_TX_MODE_SWITCH_PUSH_PULL: 3151839ae637SMichal Kazior break; 3152839ae637SMichal Kazior default: 3153839ae637SMichal Kazior ath10k_warn(ar, "received invalid tx_mode_switch_mode_ind mode %d, ignoring\n", 3154839ae637SMichal Kazior mode); 3155839ae637SMichal Kazior return; 3156839ae637SMichal Kazior } 3157839ae637SMichal Kazior 3158839ae637SMichal Kazior if (!enable) 3159839ae637SMichal Kazior return; 3160839ae637SMichal Kazior 3161426e10eaSMichal Kazior ar->htt.tx_q_state.enabled = enable; 3162426e10eaSMichal Kazior ar->htt.tx_q_state.mode = mode; 3163426e10eaSMichal Kazior ar->htt.tx_q_state.num_push_allowed = threshold; 3164426e10eaSMichal Kazior 3165426e10eaSMichal Kazior rcu_read_lock(); 3166839ae637SMichal Kazior 3167839ae637SMichal Kazior for (i = 0; i < num_records; i++) { 3168839ae637SMichal Kazior record = &resp->tx_mode_switch_ind.records[i]; 3169839ae637SMichal Kazior info0 = le16_to_cpu(record->info0); 3170839ae637SMichal Kazior peer_id = MS(info0, HTT_TX_MODE_SWITCH_RECORD_INFO0_PEER_ID); 3171839ae637SMichal Kazior tid = MS(info0, HTT_TX_MODE_SWITCH_RECORD_INFO0_TID); 3172839ae637SMichal Kazior 3173839ae637SMichal Kazior if (unlikely(peer_id >= ar->htt.tx_q_state.num_peers) || 3174839ae637SMichal Kazior unlikely(tid >= ar->htt.tx_q_state.num_tids)) { 3175839ae637SMichal Kazior ath10k_warn(ar, "received out of range peer_id %hu tid %hhu\n", 3176839ae637SMichal Kazior peer_id, tid); 3177839ae637SMichal Kazior continue; 3178839ae637SMichal Kazior } 3179839ae637SMichal Kazior 3180426e10eaSMichal Kazior spin_lock_bh(&ar->data_lock); 3181426e10eaSMichal Kazior txq = ath10k_mac_txq_lookup(ar, peer_id, tid); 3182426e10eaSMichal Kazior spin_unlock_bh(&ar->data_lock); 3183426e10eaSMichal Kazior 3184426e10eaSMichal Kazior /* It is okay to release the lock and use txq because RCU read 3185426e10eaSMichal Kazior * lock is held. 3186426e10eaSMichal Kazior */ 3187426e10eaSMichal Kazior 3188426e10eaSMichal Kazior if (unlikely(!txq)) { 3189426e10eaSMichal Kazior ath10k_warn(ar, "failed to lookup txq for peer_id %hu tid %hhu\n", 3190426e10eaSMichal Kazior peer_id, tid); 3191426e10eaSMichal Kazior continue; 3192839ae637SMichal Kazior } 3193839ae637SMichal Kazior 3194426e10eaSMichal Kazior spin_lock_bh(&ar->htt.tx_lock); 3195426e10eaSMichal Kazior artxq = (void *)txq->drv_priv; 3196426e10eaSMichal Kazior artxq->num_push_allowed = le16_to_cpu(record->num_max_msdus); 3197426e10eaSMichal Kazior spin_unlock_bh(&ar->htt.tx_lock); 3198426e10eaSMichal Kazior } 3199426e10eaSMichal Kazior 3200426e10eaSMichal Kazior rcu_read_unlock(); 3201426e10eaSMichal Kazior 3202426e10eaSMichal Kazior ath10k_mac_tx_push_pending(ar); 3203839ae637SMichal Kazior } 3204839ae637SMichal Kazior 3205e3a91f87SRajkumar Manoharan void ath10k_htt_htc_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) 3206e3a91f87SRajkumar Manoharan { 3207e3a91f87SRajkumar Manoharan bool release; 3208e3a91f87SRajkumar Manoharan 3209e3a91f87SRajkumar Manoharan release = ath10k_htt_t2h_msg_handler(ar, skb); 3210e3a91f87SRajkumar Manoharan 3211e3a91f87SRajkumar Manoharan /* Free the indication buffer */ 3212e3a91f87SRajkumar Manoharan if (release) 3213e3a91f87SRajkumar Manoharan dev_kfree_skb_any(skb); 3214e3a91f87SRajkumar Manoharan } 3215e3a91f87SRajkumar Manoharan 32169a9cf0e6SAnilkumar Kolli static inline s8 ath10k_get_legacy_rate_idx(struct ath10k *ar, u8 rate) 3217cec17c38SAnilkumar Kolli { 3218cec17c38SAnilkumar Kolli static const u8 legacy_rates[] = {1, 2, 5, 11, 6, 9, 12, 3219cec17c38SAnilkumar Kolli 18, 24, 36, 48, 54}; 3220cec17c38SAnilkumar Kolli int i; 3221cec17c38SAnilkumar Kolli 3222cec17c38SAnilkumar Kolli for (i = 0; i < ARRAY_SIZE(legacy_rates); i++) { 3223cec17c38SAnilkumar Kolli if (rate == legacy_rates[i]) 32240189dbd7SAnilkumar Kolli return i; 3225cec17c38SAnilkumar Kolli } 3226cec17c38SAnilkumar Kolli 32270189dbd7SAnilkumar Kolli ath10k_warn(ar, "Invalid legacy rate %hhd peer stats", rate); 32280189dbd7SAnilkumar Kolli return -EINVAL; 3229cec17c38SAnilkumar Kolli } 3230cec17c38SAnilkumar Kolli 3231cec17c38SAnilkumar Kolli static void 3232a904417fSAnilkumar Kolli ath10k_accumulate_per_peer_tx_stats(struct ath10k *ar, 3233a904417fSAnilkumar Kolli struct ath10k_sta *arsta, 3234a904417fSAnilkumar Kolli struct ath10k_per_peer_tx_stats *pstats, 32359a9cf0e6SAnilkumar Kolli s8 legacy_rate_idx) 3236a904417fSAnilkumar Kolli { 3237a904417fSAnilkumar Kolli struct rate_info *txrate = &arsta->txrate; 3238a904417fSAnilkumar Kolli struct ath10k_htt_tx_stats *tx_stats; 3239e88975caSAnilkumar Kolli int idx, ht_idx, gi, mcs, bw, nss; 32408e55fdaaSSurabhi Vishnoi unsigned long flags; 3241a904417fSAnilkumar Kolli 3242a904417fSAnilkumar Kolli if (!arsta->tx_stats) 3243a904417fSAnilkumar Kolli return; 3244a904417fSAnilkumar Kolli 3245a904417fSAnilkumar Kolli tx_stats = arsta->tx_stats; 32468e55fdaaSSurabhi Vishnoi flags = txrate->flags; 32478e55fdaaSSurabhi Vishnoi gi = test_bit(ATH10K_RATE_INFO_FLAGS_SGI_BIT, &flags); 3248d23c2cdaSSurabhi Vishnoi mcs = ATH10K_HW_MCS_RATE(pstats->ratecode); 3249a904417fSAnilkumar Kolli bw = txrate->bw; 3250a904417fSAnilkumar Kolli nss = txrate->nss; 3251d23c2cdaSSurabhi Vishnoi ht_idx = mcs + (nss - 1) * 8; 3252d23c2cdaSSurabhi Vishnoi idx = mcs * 8 + 8 * 10 * (nss - 1); 3253e88975caSAnilkumar Kolli idx += bw * 2 + gi; 3254a904417fSAnilkumar Kolli 3255a904417fSAnilkumar Kolli #define STATS_OP_FMT(name) tx_stats->stats[ATH10K_STATS_TYPE_##name] 3256a904417fSAnilkumar Kolli 32579e0b341aSBrandon Huang if (txrate->flags & RATE_INFO_FLAGS_VHT_MCS) { 3258a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).vht[0][mcs] += pstats->succ_bytes; 3259a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).vht[1][mcs] += pstats->succ_pkts; 3260a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).vht[0][mcs] += pstats->failed_bytes; 3261a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).vht[1][mcs] += pstats->failed_pkts; 3262a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).vht[0][mcs] += pstats->retry_bytes; 3263a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).vht[1][mcs] += pstats->retry_pkts; 32649e0b341aSBrandon Huang } else if (txrate->flags & RATE_INFO_FLAGS_MCS) { 3265a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).ht[0][ht_idx] += pstats->succ_bytes; 3266a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).ht[1][ht_idx] += pstats->succ_pkts; 3267a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).ht[0][ht_idx] += pstats->failed_bytes; 3268a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).ht[1][ht_idx] += pstats->failed_pkts; 3269a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).ht[0][ht_idx] += pstats->retry_bytes; 3270a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).ht[1][ht_idx] += pstats->retry_pkts; 3271a904417fSAnilkumar Kolli } else { 3272a904417fSAnilkumar Kolli mcs = legacy_rate_idx; 3273a904417fSAnilkumar Kolli 3274a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).legacy[0][mcs] += pstats->succ_bytes; 3275a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).legacy[1][mcs] += pstats->succ_pkts; 3276a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).legacy[0][mcs] += pstats->failed_bytes; 3277a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).legacy[1][mcs] += pstats->failed_pkts; 3278a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).legacy[0][mcs] += pstats->retry_bytes; 3279a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).legacy[1][mcs] += pstats->retry_pkts; 3280a904417fSAnilkumar Kolli } 3281a904417fSAnilkumar Kolli 3282a904417fSAnilkumar Kolli if (ATH10K_HW_AMPDU(pstats->flags)) { 3283a904417fSAnilkumar Kolli tx_stats->ba_fails += ATH10K_HW_BA_FAIL(pstats->flags); 3284a904417fSAnilkumar Kolli 32859e0b341aSBrandon Huang if (txrate->flags & RATE_INFO_FLAGS_MCS) { 3286a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).ht[0][ht_idx] += 3287a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes; 3288a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).ht[1][ht_idx] += 3289a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts; 3290a904417fSAnilkumar Kolli } else { 3291a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).vht[0][mcs] += 3292a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes; 3293a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).vht[1][mcs] += 3294a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts; 3295a904417fSAnilkumar Kolli } 3296a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).bw[0][bw] += 3297a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes; 32983a08ac3eSSurabhi Vishnoi STATS_OP_FMT(AMPDU).nss[0][nss - 1] += 3299a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes; 3300a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).gi[0][gi] += 3301a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes; 3302e88975caSAnilkumar Kolli STATS_OP_FMT(AMPDU).rate_table[0][idx] += 3303e88975caSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes; 3304a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).bw[1][bw] += 3305a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts; 33063a08ac3eSSurabhi Vishnoi STATS_OP_FMT(AMPDU).nss[1][nss - 1] += 3307a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts; 3308a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).gi[1][gi] += 3309a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts; 3310e88975caSAnilkumar Kolli STATS_OP_FMT(AMPDU).rate_table[1][idx] += 3311e88975caSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts; 3312a904417fSAnilkumar Kolli } else { 3313a904417fSAnilkumar Kolli tx_stats->ack_fails += 3314a904417fSAnilkumar Kolli ATH10K_HW_BA_FAIL(pstats->flags); 3315a904417fSAnilkumar Kolli } 3316a904417fSAnilkumar Kolli 3317a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).bw[0][bw] += pstats->succ_bytes; 33183a08ac3eSSurabhi Vishnoi STATS_OP_FMT(SUCC).nss[0][nss - 1] += pstats->succ_bytes; 3319a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).gi[0][gi] += pstats->succ_bytes; 3320a904417fSAnilkumar Kolli 3321a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).bw[1][bw] += pstats->succ_pkts; 33223a08ac3eSSurabhi Vishnoi STATS_OP_FMT(SUCC).nss[1][nss - 1] += pstats->succ_pkts; 3323a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).gi[1][gi] += pstats->succ_pkts; 3324a904417fSAnilkumar Kolli 3325a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).bw[0][bw] += pstats->failed_bytes; 33263a08ac3eSSurabhi Vishnoi STATS_OP_FMT(FAIL).nss[0][nss - 1] += pstats->failed_bytes; 3327a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).gi[0][gi] += pstats->failed_bytes; 3328a904417fSAnilkumar Kolli 3329a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).bw[1][bw] += pstats->failed_pkts; 33303a08ac3eSSurabhi Vishnoi STATS_OP_FMT(FAIL).nss[1][nss - 1] += pstats->failed_pkts; 3331a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).gi[1][gi] += pstats->failed_pkts; 3332a904417fSAnilkumar Kolli 3333a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).bw[0][bw] += pstats->retry_bytes; 33343a08ac3eSSurabhi Vishnoi STATS_OP_FMT(RETRY).nss[0][nss - 1] += pstats->retry_bytes; 3335a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).gi[0][gi] += pstats->retry_bytes; 3336a904417fSAnilkumar Kolli 3337a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).bw[1][bw] += pstats->retry_pkts; 33383a08ac3eSSurabhi Vishnoi STATS_OP_FMT(RETRY).nss[1][nss - 1] += pstats->retry_pkts; 3339a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).gi[1][gi] += pstats->retry_pkts; 3340e88975caSAnilkumar Kolli 3341e88975caSAnilkumar Kolli if (txrate->flags >= RATE_INFO_FLAGS_MCS) { 3342e88975caSAnilkumar Kolli STATS_OP_FMT(SUCC).rate_table[0][idx] += pstats->succ_bytes; 3343e88975caSAnilkumar Kolli STATS_OP_FMT(SUCC).rate_table[1][idx] += pstats->succ_pkts; 3344e88975caSAnilkumar Kolli STATS_OP_FMT(FAIL).rate_table[0][idx] += pstats->failed_bytes; 3345e88975caSAnilkumar Kolli STATS_OP_FMT(FAIL).rate_table[1][idx] += pstats->failed_pkts; 3346e88975caSAnilkumar Kolli STATS_OP_FMT(RETRY).rate_table[0][idx] += pstats->retry_bytes; 3347e88975caSAnilkumar Kolli STATS_OP_FMT(RETRY).rate_table[1][idx] += pstats->retry_pkts; 3348e88975caSAnilkumar Kolli } 334905655029SSurabhi Vishnoi 335005655029SSurabhi Vishnoi tx_stats->tx_duration += pstats->duration; 3351cec17c38SAnilkumar Kolli } 3352cec17c38SAnilkumar Kolli 3353cec17c38SAnilkumar Kolli static void 3354cec17c38SAnilkumar Kolli ath10k_update_per_peer_tx_stats(struct ath10k *ar, 3355cec17c38SAnilkumar Kolli struct ieee80211_sta *sta, 3356cec17c38SAnilkumar Kolli struct ath10k_per_peer_tx_stats *peer_stats) 3357cec17c38SAnilkumar Kolli { 3358cec17c38SAnilkumar Kolli struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv; 33599a9cf0e6SAnilkumar Kolli struct ieee80211_chanctx_conf *conf = NULL; 33609d9cdbf3SGustavo A. R. Silva u8 rate = 0, sgi; 33619d9cdbf3SGustavo A. R. Silva s8 rate_idx = 0; 33629a9cf0e6SAnilkumar Kolli bool skip_auto_rate; 3363cec17c38SAnilkumar Kolli struct rate_info txrate; 3364cec17c38SAnilkumar Kolli 3365cec17c38SAnilkumar Kolli lockdep_assert_held(&ar->data_lock); 3366cec17c38SAnilkumar Kolli 3367cec17c38SAnilkumar Kolli txrate.flags = ATH10K_HW_PREAMBLE(peer_stats->ratecode); 3368cec17c38SAnilkumar Kolli txrate.bw = ATH10K_HW_BW(peer_stats->flags); 3369cec17c38SAnilkumar Kolli txrate.nss = ATH10K_HW_NSS(peer_stats->ratecode); 3370cec17c38SAnilkumar Kolli txrate.mcs = ATH10K_HW_MCS_RATE(peer_stats->ratecode); 3371cec17c38SAnilkumar Kolli sgi = ATH10K_HW_GI(peer_stats->flags); 33729a9cf0e6SAnilkumar Kolli skip_auto_rate = ATH10K_FW_SKIPPED_RATE_CTRL(peer_stats->flags); 33739a9cf0e6SAnilkumar Kolli 33749a9cf0e6SAnilkumar Kolli /* Firmware's rate control skips broadcast/management frames, 33759a9cf0e6SAnilkumar Kolli * if host has configure fixed rates and in some other special cases. 33769a9cf0e6SAnilkumar Kolli */ 33779a9cf0e6SAnilkumar Kolli if (skip_auto_rate) 33789a9cf0e6SAnilkumar Kolli return; 3379cec17c38SAnilkumar Kolli 3380c1dd8016SSven Eckelmann if (txrate.flags == WMI_RATE_PREAMBLE_VHT && txrate.mcs > 9) { 3381c1dd8016SSven Eckelmann ath10k_warn(ar, "Invalid VHT mcs %hhd peer stats", txrate.mcs); 3382c1dd8016SSven Eckelmann return; 3383c1dd8016SSven Eckelmann } 3384c1dd8016SSven Eckelmann 3385c1dd8016SSven Eckelmann if (txrate.flags == WMI_RATE_PREAMBLE_HT && 3386c1dd8016SSven Eckelmann (txrate.mcs > 7 || txrate.nss < 1)) { 3387c1dd8016SSven Eckelmann ath10k_warn(ar, "Invalid HT mcs %hhd nss %hhd peer stats", 3388c1dd8016SSven Eckelmann txrate.mcs, txrate.nss); 3389cec17c38SAnilkumar Kolli return; 3390cec17c38SAnilkumar Kolli } 3391cec17c38SAnilkumar Kolli 33920f8a2b77SMohammed Shafi Shajakhan memset(&arsta->txrate, 0, sizeof(arsta->txrate)); 33939a9cf0e6SAnilkumar Kolli memset(&arsta->tx_info.status, 0, sizeof(arsta->tx_info.status)); 3394cec17c38SAnilkumar Kolli if (txrate.flags == WMI_RATE_PREAMBLE_CCK || 3395cec17c38SAnilkumar Kolli txrate.flags == WMI_RATE_PREAMBLE_OFDM) { 3396cec17c38SAnilkumar Kolli rate = ATH10K_HW_LEGACY_RATE(peer_stats->ratecode); 3397cec17c38SAnilkumar Kolli /* This is hacky, FW sends CCK rate 5.5Mbps as 6 */ 33980189dbd7SAnilkumar Kolli if (rate == 6 && txrate.flags == WMI_RATE_PREAMBLE_CCK) 33990189dbd7SAnilkumar Kolli rate = 5; 34000189dbd7SAnilkumar Kolli rate_idx = ath10k_get_legacy_rate_idx(ar, rate); 34010189dbd7SAnilkumar Kolli if (rate_idx < 0) 34020189dbd7SAnilkumar Kolli return; 3403cd591027SMohammed Shafi Shajakhan arsta->txrate.legacy = rate; 3404cec17c38SAnilkumar Kolli } else if (txrate.flags == WMI_RATE_PREAMBLE_HT) { 3405cec17c38SAnilkumar Kolli arsta->txrate.flags = RATE_INFO_FLAGS_MCS; 3406c1dd8016SSven Eckelmann arsta->txrate.mcs = txrate.mcs + 8 * (txrate.nss - 1); 3407cec17c38SAnilkumar Kolli } else { 3408cec17c38SAnilkumar Kolli arsta->txrate.flags = RATE_INFO_FLAGS_VHT_MCS; 3409cec17c38SAnilkumar Kolli arsta->txrate.mcs = txrate.mcs; 3410cec17c38SAnilkumar Kolli } 3411cec17c38SAnilkumar Kolli 34129a9cf0e6SAnilkumar Kolli switch (txrate.flags) { 34139a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_OFDM: 34149a9cf0e6SAnilkumar Kolli if (arsta->arvif && arsta->arvif->vif) 34159a9cf0e6SAnilkumar Kolli conf = rcu_dereference(arsta->arvif->vif->chanctx_conf); 34169a9cf0e6SAnilkumar Kolli if (conf && conf->def.chan->band == NL80211_BAND_5GHZ) 34179a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].idx = rate_idx - 4; 34189a9cf0e6SAnilkumar Kolli break; 34199a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_CCK: 34209a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].idx = rate_idx; 3421cec17c38SAnilkumar Kolli if (sgi) 34229a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= 34239a9cf0e6SAnilkumar Kolli (IEEE80211_TX_RC_USE_SHORT_PREAMBLE | 34249a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_SHORT_GI); 34259a9cf0e6SAnilkumar Kolli break; 34269a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_HT: 34279a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].idx = 34289a9cf0e6SAnilkumar Kolli txrate.mcs + ((txrate.nss - 1) * 8); 34299a9cf0e6SAnilkumar Kolli if (sgi) 34309a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= 34319a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_SHORT_GI; 34329a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= IEEE80211_TX_RC_MCS; 34339a9cf0e6SAnilkumar Kolli break; 34349a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_VHT: 34359a9cf0e6SAnilkumar Kolli ieee80211_rate_set_vht(&arsta->tx_info.status.rates[0], 34369a9cf0e6SAnilkumar Kolli txrate.mcs, txrate.nss); 34379a9cf0e6SAnilkumar Kolli if (sgi) 34389a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= 34399a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_SHORT_GI; 34409a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= IEEE80211_TX_RC_VHT_MCS; 34419a9cf0e6SAnilkumar Kolli break; 34429a9cf0e6SAnilkumar Kolli } 3443cec17c38SAnilkumar Kolli 3444cec17c38SAnilkumar Kolli arsta->txrate.nss = txrate.nss; 344591493e8eSChristian Lamparter arsta->txrate.bw = ath10k_bw_to_mac80211_bw(txrate.bw); 3446d1ce37b7SKan Yan arsta->last_tx_bitrate = cfg80211_calculate_bitrate(&arsta->txrate); 34479a9cf0e6SAnilkumar Kolli if (sgi) 34489a9cf0e6SAnilkumar Kolli arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 34499a9cf0e6SAnilkumar Kolli 34509a9cf0e6SAnilkumar Kolli switch (arsta->txrate.bw) { 34519a9cf0e6SAnilkumar Kolli case RATE_INFO_BW_40: 34529a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= 34539a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_40_MHZ_WIDTH; 34549a9cf0e6SAnilkumar Kolli break; 34559a9cf0e6SAnilkumar Kolli case RATE_INFO_BW_80: 34569a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= 34579a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_80_MHZ_WIDTH; 34589a9cf0e6SAnilkumar Kolli break; 34599a9cf0e6SAnilkumar Kolli } 34609a9cf0e6SAnilkumar Kolli 34619a9cf0e6SAnilkumar Kolli if (peer_stats->succ_pkts) { 34629a9cf0e6SAnilkumar Kolli arsta->tx_info.flags = IEEE80211_TX_STAT_ACK; 34639a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].count = 1; 34649a9cf0e6SAnilkumar Kolli ieee80211_tx_rate_update(ar->hw, sta, &arsta->tx_info); 34659a9cf0e6SAnilkumar Kolli } 3466a904417fSAnilkumar Kolli 3467a904417fSAnilkumar Kolli if (ath10k_debug_is_extd_tx_stats_enabled(ar)) 3468a904417fSAnilkumar Kolli ath10k_accumulate_per_peer_tx_stats(ar, arsta, peer_stats, 3469a904417fSAnilkumar Kolli rate_idx); 3470cec17c38SAnilkumar Kolli } 3471cec17c38SAnilkumar Kolli 3472cec17c38SAnilkumar Kolli static void ath10k_htt_fetch_peer_stats(struct ath10k *ar, 3473cec17c38SAnilkumar Kolli struct sk_buff *skb) 3474cec17c38SAnilkumar Kolli { 3475cec17c38SAnilkumar Kolli struct htt_resp *resp = (struct htt_resp *)skb->data; 3476cec17c38SAnilkumar Kolli struct ath10k_per_peer_tx_stats *p_tx_stats = &ar->peer_tx_stats; 3477cec17c38SAnilkumar Kolli struct htt_per_peer_tx_stats_ind *tx_stats; 3478cec17c38SAnilkumar Kolli struct ieee80211_sta *sta; 3479cec17c38SAnilkumar Kolli struct ath10k_peer *peer; 3480cec17c38SAnilkumar Kolli int peer_id, i; 3481cec17c38SAnilkumar Kolli u8 ppdu_len, num_ppdu; 3482cec17c38SAnilkumar Kolli 3483cec17c38SAnilkumar Kolli num_ppdu = resp->peer_tx_stats.num_ppdu; 3484cec17c38SAnilkumar Kolli ppdu_len = resp->peer_tx_stats.ppdu_len * sizeof(__le32); 3485cec17c38SAnilkumar Kolli 3486cec17c38SAnilkumar Kolli if (skb->len < sizeof(struct htt_resp_hdr) + num_ppdu * ppdu_len) { 3487cec17c38SAnilkumar Kolli ath10k_warn(ar, "Invalid peer stats buf length %d\n", skb->len); 3488cec17c38SAnilkumar Kolli return; 3489cec17c38SAnilkumar Kolli } 3490cec17c38SAnilkumar Kolli 3491cec17c38SAnilkumar Kolli tx_stats = (struct htt_per_peer_tx_stats_ind *) 3492cec17c38SAnilkumar Kolli (resp->peer_tx_stats.payload); 3493cec17c38SAnilkumar Kolli peer_id = __le16_to_cpu(tx_stats->peer_id); 3494cec17c38SAnilkumar Kolli 3495cec17c38SAnilkumar Kolli rcu_read_lock(); 3496cec17c38SAnilkumar Kolli spin_lock_bh(&ar->data_lock); 3497cec17c38SAnilkumar Kolli peer = ath10k_peer_find_by_id(ar, peer_id); 34982d3b5585SZhi Chen if (!peer || !peer->sta) { 3499cec17c38SAnilkumar Kolli ath10k_warn(ar, "Invalid peer id %d peer stats buffer\n", 3500cec17c38SAnilkumar Kolli peer_id); 3501cec17c38SAnilkumar Kolli goto out; 3502cec17c38SAnilkumar Kolli } 3503cec17c38SAnilkumar Kolli 3504cec17c38SAnilkumar Kolli sta = peer->sta; 3505cec17c38SAnilkumar Kolli for (i = 0; i < num_ppdu; i++) { 3506cec17c38SAnilkumar Kolli tx_stats = (struct htt_per_peer_tx_stats_ind *) 3507cec17c38SAnilkumar Kolli (resp->peer_tx_stats.payload + i * ppdu_len); 3508cec17c38SAnilkumar Kolli 3509cec17c38SAnilkumar Kolli p_tx_stats->succ_bytes = __le32_to_cpu(tx_stats->succ_bytes); 3510cec17c38SAnilkumar Kolli p_tx_stats->retry_bytes = __le32_to_cpu(tx_stats->retry_bytes); 3511cec17c38SAnilkumar Kolli p_tx_stats->failed_bytes = 3512cec17c38SAnilkumar Kolli __le32_to_cpu(tx_stats->failed_bytes); 3513cec17c38SAnilkumar Kolli p_tx_stats->ratecode = tx_stats->ratecode; 3514cec17c38SAnilkumar Kolli p_tx_stats->flags = tx_stats->flags; 3515cec17c38SAnilkumar Kolli p_tx_stats->succ_pkts = __le16_to_cpu(tx_stats->succ_pkts); 3516cec17c38SAnilkumar Kolli p_tx_stats->retry_pkts = __le16_to_cpu(tx_stats->retry_pkts); 3517cec17c38SAnilkumar Kolli p_tx_stats->failed_pkts = __le16_to_cpu(tx_stats->failed_pkts); 351805655029SSurabhi Vishnoi p_tx_stats->duration = __le16_to_cpu(tx_stats->tx_duration); 3519cec17c38SAnilkumar Kolli 3520cec17c38SAnilkumar Kolli ath10k_update_per_peer_tx_stats(ar, sta, p_tx_stats); 3521cec17c38SAnilkumar Kolli } 3522cec17c38SAnilkumar Kolli 3523cec17c38SAnilkumar Kolli out: 3524cec17c38SAnilkumar Kolli spin_unlock_bh(&ar->data_lock); 3525cec17c38SAnilkumar Kolli rcu_read_unlock(); 3526cec17c38SAnilkumar Kolli } 3527cec17c38SAnilkumar Kolli 3528e8123bb7SAnilkumar Kolli static void ath10k_fetch_10_2_tx_stats(struct ath10k *ar, u8 *data) 3529e8123bb7SAnilkumar Kolli { 3530e8123bb7SAnilkumar Kolli struct ath10k_pktlog_hdr *hdr = (struct ath10k_pktlog_hdr *)data; 3531e8123bb7SAnilkumar Kolli struct ath10k_per_peer_tx_stats *p_tx_stats = &ar->peer_tx_stats; 3532e8123bb7SAnilkumar Kolli struct ath10k_10_2_peer_tx_stats *tx_stats; 3533e8123bb7SAnilkumar Kolli struct ieee80211_sta *sta; 3534e8123bb7SAnilkumar Kolli struct ath10k_peer *peer; 3535e8123bb7SAnilkumar Kolli u16 log_type = __le16_to_cpu(hdr->log_type); 3536e8123bb7SAnilkumar Kolli u32 peer_id = 0, i; 3537e8123bb7SAnilkumar Kolli 3538e8123bb7SAnilkumar Kolli if (log_type != ATH_PKTLOG_TYPE_TX_STAT) 3539e8123bb7SAnilkumar Kolli return; 3540e8123bb7SAnilkumar Kolli 3541e8123bb7SAnilkumar Kolli tx_stats = (struct ath10k_10_2_peer_tx_stats *)((hdr->payload) + 3542e8123bb7SAnilkumar Kolli ATH10K_10_2_TX_STATS_OFFSET); 3543e8123bb7SAnilkumar Kolli 3544e8123bb7SAnilkumar Kolli if (!tx_stats->tx_ppdu_cnt) 3545e8123bb7SAnilkumar Kolli return; 3546e8123bb7SAnilkumar Kolli 3547e8123bb7SAnilkumar Kolli peer_id = tx_stats->peer_id; 3548e8123bb7SAnilkumar Kolli 3549e8123bb7SAnilkumar Kolli rcu_read_lock(); 3550e8123bb7SAnilkumar Kolli spin_lock_bh(&ar->data_lock); 3551e8123bb7SAnilkumar Kolli peer = ath10k_peer_find_by_id(ar, peer_id); 35522d3b5585SZhi Chen if (!peer || !peer->sta) { 3553e8123bb7SAnilkumar Kolli ath10k_warn(ar, "Invalid peer id %d in peer stats buffer\n", 3554e8123bb7SAnilkumar Kolli peer_id); 3555e8123bb7SAnilkumar Kolli goto out; 3556e8123bb7SAnilkumar Kolli } 3557e8123bb7SAnilkumar Kolli 3558e8123bb7SAnilkumar Kolli sta = peer->sta; 3559e8123bb7SAnilkumar Kolli for (i = 0; i < tx_stats->tx_ppdu_cnt; i++) { 3560e8123bb7SAnilkumar Kolli p_tx_stats->succ_bytes = 3561e8123bb7SAnilkumar Kolli __le16_to_cpu(tx_stats->success_bytes[i]); 3562e8123bb7SAnilkumar Kolli p_tx_stats->retry_bytes = 3563e8123bb7SAnilkumar Kolli __le16_to_cpu(tx_stats->retry_bytes[i]); 3564e8123bb7SAnilkumar Kolli p_tx_stats->failed_bytes = 3565e8123bb7SAnilkumar Kolli __le16_to_cpu(tx_stats->failed_bytes[i]); 3566e8123bb7SAnilkumar Kolli p_tx_stats->ratecode = tx_stats->ratecode[i]; 3567e8123bb7SAnilkumar Kolli p_tx_stats->flags = tx_stats->flags[i]; 3568e8123bb7SAnilkumar Kolli p_tx_stats->succ_pkts = tx_stats->success_pkts[i]; 3569e8123bb7SAnilkumar Kolli p_tx_stats->retry_pkts = tx_stats->retry_pkts[i]; 3570e8123bb7SAnilkumar Kolli p_tx_stats->failed_pkts = tx_stats->failed_pkts[i]; 3571e8123bb7SAnilkumar Kolli 3572e8123bb7SAnilkumar Kolli ath10k_update_per_peer_tx_stats(ar, sta, p_tx_stats); 3573e8123bb7SAnilkumar Kolli } 3574e8123bb7SAnilkumar Kolli spin_unlock_bh(&ar->data_lock); 3575e8123bb7SAnilkumar Kolli rcu_read_unlock(); 3576e8123bb7SAnilkumar Kolli 3577e8123bb7SAnilkumar Kolli return; 3578e8123bb7SAnilkumar Kolli 3579e8123bb7SAnilkumar Kolli out: 3580e8123bb7SAnilkumar Kolli spin_unlock_bh(&ar->data_lock); 3581e8123bb7SAnilkumar Kolli rcu_read_unlock(); 3582e8123bb7SAnilkumar Kolli } 3583e8123bb7SAnilkumar Kolli 358428ce53b6SWen Gong static int ath10k_htt_rx_pn_len(enum htt_security_types sec_type) 358528ce53b6SWen Gong { 358628ce53b6SWen Gong switch (sec_type) { 358728ce53b6SWen Gong case HTT_SECURITY_TKIP: 358828ce53b6SWen Gong case HTT_SECURITY_TKIP_NOMIC: 358928ce53b6SWen Gong case HTT_SECURITY_AES_CCMP: 359028ce53b6SWen Gong return 48; 359128ce53b6SWen Gong default: 359228ce53b6SWen Gong return 0; 359328ce53b6SWen Gong } 359428ce53b6SWen Gong } 359528ce53b6SWen Gong 359628ce53b6SWen Gong static void ath10k_htt_rx_sec_ind_handler(struct ath10k *ar, 359728ce53b6SWen Gong struct htt_security_indication *ev) 359828ce53b6SWen Gong { 359928ce53b6SWen Gong enum htt_txrx_sec_cast_type sec_index; 360028ce53b6SWen Gong enum htt_security_types sec_type; 360128ce53b6SWen Gong struct ath10k_peer *peer; 360228ce53b6SWen Gong 360328ce53b6SWen Gong spin_lock_bh(&ar->data_lock); 360428ce53b6SWen Gong 360528ce53b6SWen Gong peer = ath10k_peer_find_by_id(ar, __le16_to_cpu(ev->peer_id)); 360628ce53b6SWen Gong if (!peer) { 360728ce53b6SWen Gong ath10k_warn(ar, "failed to find peer id %d for security indication", 360828ce53b6SWen Gong __le16_to_cpu(ev->peer_id)); 360928ce53b6SWen Gong goto out; 361028ce53b6SWen Gong } 361128ce53b6SWen Gong 361228ce53b6SWen Gong sec_type = MS(ev->flags, HTT_SECURITY_TYPE); 361328ce53b6SWen Gong 361428ce53b6SWen Gong if (ev->flags & HTT_SECURITY_IS_UNICAST) 361528ce53b6SWen Gong sec_index = HTT_TXRX_SEC_UCAST; 361628ce53b6SWen Gong else 361728ce53b6SWen Gong sec_index = HTT_TXRX_SEC_MCAST; 361828ce53b6SWen Gong 361928ce53b6SWen Gong peer->rx_pn[sec_index].sec_type = sec_type; 362028ce53b6SWen Gong peer->rx_pn[sec_index].pn_len = ath10k_htt_rx_pn_len(sec_type); 362128ce53b6SWen Gong 362228ce53b6SWen Gong memset(peer->tids_last_pn_valid, 0, sizeof(peer->tids_last_pn_valid)); 362328ce53b6SWen Gong memset(peer->tids_last_pn, 0, sizeof(peer->tids_last_pn)); 362428ce53b6SWen Gong 362528ce53b6SWen Gong out: 362628ce53b6SWen Gong spin_unlock_bh(&ar->data_lock); 362728ce53b6SWen Gong } 362828ce53b6SWen Gong 3629e3a91f87SRajkumar Manoharan bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) 36305e3dd157SKalle Valo { 3631edb8236dSMichal Kazior struct ath10k_htt *htt = &ar->htt; 36325e3dd157SKalle Valo struct htt_resp *resp = (struct htt_resp *)skb->data; 36338348db29SRajkumar Manoharan enum htt_t2h_msg_type type; 36345e3dd157SKalle Valo 36355e3dd157SKalle Valo /* confirm alignment */ 36365e3dd157SKalle Valo if (!IS_ALIGNED((unsigned long)skb->data, 4)) 36377aa7a72aSMichal Kazior ath10k_warn(ar, "unaligned htt message, expect trouble\n"); 36385e3dd157SKalle Valo 36397aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx, msg_type: 0x%0X\n", 36405e3dd157SKalle Valo resp->hdr.msg_type); 36418348db29SRajkumar Manoharan 36428348db29SRajkumar Manoharan if (resp->hdr.msg_type >= ar->htt.t2h_msg_types_max) { 36438348db29SRajkumar Manoharan ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx, unsupported msg_type: 0x%0X\n max: 0x%0X", 36448348db29SRajkumar Manoharan resp->hdr.msg_type, ar->htt.t2h_msg_types_max); 3645e3a91f87SRajkumar Manoharan return true; 36468348db29SRajkumar Manoharan } 36478348db29SRajkumar Manoharan type = ar->htt.t2h_msg_types[resp->hdr.msg_type]; 36488348db29SRajkumar Manoharan 36498348db29SRajkumar Manoharan switch (type) { 36505e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_VERSION_CONF: { 36515e3dd157SKalle Valo htt->target_version_major = resp->ver_resp.major; 36525e3dd157SKalle Valo htt->target_version_minor = resp->ver_resp.minor; 36535e3dd157SKalle Valo complete(&htt->target_version_received); 36545e3dd157SKalle Valo break; 36555e3dd157SKalle Valo } 36566c5151a9SMichal Kazior case HTT_T2H_MSG_TYPE_RX_IND: 3657de8781d7SGovind Singh if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) 3658f88d4934SErik Stromdahl return ath10k_htt_rx_proc_rx_ind_hl(htt, 3659f88d4934SErik Stromdahl &resp->rx_ind_hl, 3660130c7749SWen Gong skb, 3661130c7749SWen Gong HTT_RX_PN_CHECK, 3662130c7749SWen Gong HTT_RX_NON_TKIP_MIC); 3663f88d4934SErik Stromdahl else 3664f88d4934SErik Stromdahl ath10k_htt_rx_proc_rx_ind_ll(htt, &resp->rx_ind); 36653128b3d8SRajkumar Manoharan break; 36665e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_PEER_MAP: { 36675e3dd157SKalle Valo struct htt_peer_map_event ev = { 36685e3dd157SKalle Valo .vdev_id = resp->peer_map.vdev_id, 36695e3dd157SKalle Valo .peer_id = __le16_to_cpu(resp->peer_map.peer_id), 36705e3dd157SKalle Valo }; 36715e3dd157SKalle Valo memcpy(ev.addr, resp->peer_map.addr, sizeof(ev.addr)); 36725e3dd157SKalle Valo ath10k_peer_map_event(htt, &ev); 36735e3dd157SKalle Valo break; 36745e3dd157SKalle Valo } 36755e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_PEER_UNMAP: { 36765e3dd157SKalle Valo struct htt_peer_unmap_event ev = { 36775e3dd157SKalle Valo .peer_id = __le16_to_cpu(resp->peer_unmap.peer_id), 36785e3dd157SKalle Valo }; 36795e3dd157SKalle Valo ath10k_peer_unmap_event(htt, &ev); 36805e3dd157SKalle Valo break; 36815e3dd157SKalle Valo } 36825e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION: { 36835e3dd157SKalle Valo struct htt_tx_done tx_done = {}; 36845e3dd157SKalle Valo int status = __le32_to_cpu(resp->mgmt_tx_completion.status); 3685235b9c42SVenkateswara Naralasetty int info = __le32_to_cpu(resp->mgmt_tx_completion.info); 36865e3dd157SKalle Valo 368759465fe4SRajkumar Manoharan tx_done.msdu_id = __le32_to_cpu(resp->mgmt_tx_completion.desc_id); 36885e3dd157SKalle Valo 36895e3dd157SKalle Valo switch (status) { 36905e3dd157SKalle Valo case HTT_MGMT_TX_STATUS_OK: 369159465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_ACK; 3692235b9c42SVenkateswara Naralasetty if (test_bit(WMI_SERVICE_HTT_MGMT_TX_COMP_VALID_FLAGS, 3693235b9c42SVenkateswara Naralasetty ar->wmi.svc_map) && 3694235b9c42SVenkateswara Naralasetty (resp->mgmt_tx_completion.flags & 3695235b9c42SVenkateswara Naralasetty HTT_MGMT_TX_CMPL_FLAG_ACK_RSSI)) { 3696235b9c42SVenkateswara Naralasetty tx_done.ack_rssi = 3697235b9c42SVenkateswara Naralasetty FIELD_GET(HTT_MGMT_TX_CMPL_INFO_ACK_RSSI_MASK, 3698235b9c42SVenkateswara Naralasetty info); 3699235b9c42SVenkateswara Naralasetty } 37005e3dd157SKalle Valo break; 37015e3dd157SKalle Valo case HTT_MGMT_TX_STATUS_RETRY: 370259465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_NOACK; 37035e3dd157SKalle Valo break; 37045e3dd157SKalle Valo case HTT_MGMT_TX_STATUS_DROP: 370559465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_DISCARD; 37065e3dd157SKalle Valo break; 37075e3dd157SKalle Valo } 37085e3dd157SKalle Valo 3709cac08552SRajkumar Manoharan status = ath10k_txrx_tx_unref(htt, &tx_done); 3710cac08552SRajkumar Manoharan if (!status) { 3711cac08552SRajkumar Manoharan spin_lock_bh(&htt->tx_lock); 3712cac08552SRajkumar Manoharan ath10k_htt_tx_mgmt_dec_pending(htt); 3713cac08552SRajkumar Manoharan spin_unlock_bh(&htt->tx_lock); 3714cac08552SRajkumar Manoharan } 37155e3dd157SKalle Valo break; 37165e3dd157SKalle Valo } 37176c5151a9SMichal Kazior case HTT_T2H_MSG_TYPE_TX_COMPL_IND: 371859465fe4SRajkumar Manoharan ath10k_htt_rx_tx_compl_ind(htt->ar, skb); 371959465fe4SRajkumar Manoharan break; 37205e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_SEC_IND: { 37215e3dd157SKalle Valo struct ath10k *ar = htt->ar; 37225e3dd157SKalle Valo struct htt_security_indication *ev = &resp->security_indication; 37235e3dd157SKalle Valo 372428ce53b6SWen Gong ath10k_htt_rx_sec_ind_handler(ar, ev); 37257aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, 37265e3dd157SKalle Valo "sec ind peer_id %d unicast %d type %d\n", 37275e3dd157SKalle Valo __le16_to_cpu(ev->peer_id), 37285e3dd157SKalle Valo !!(ev->flags & HTT_SECURITY_IS_UNICAST), 37295e3dd157SKalle Valo MS(ev->flags, HTT_SECURITY_TYPE)); 37305e3dd157SKalle Valo complete(&ar->install_key_done); 37315e3dd157SKalle Valo break; 37325e3dd157SKalle Valo } 37335e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_RX_FRAG_IND: { 37347aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt event: ", 37355e3dd157SKalle Valo skb->data, skb->len); 37363c97f5deSRajkumar Manoharan atomic_inc(&htt->num_mpdus_ready); 373733f97472SWen Gong 373833f97472SWen Gong return ath10k_htt_rx_proc_rx_frag_ind(htt, 373933f97472SWen Gong &resp->rx_frag_ind, 374033f97472SWen Gong skb); 37415e3dd157SKalle Valo break; 37425e3dd157SKalle Valo } 37435e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_TEST: 37445e3dd157SKalle Valo break; 37455e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_STATS_CONF: 3746d35a6c18SMichal Kazior trace_ath10k_htt_stats(ar, skb->data, skb->len); 3747a9bf0506SKalle Valo break; 3748a9bf0506SKalle Valo case HTT_T2H_MSG_TYPE_TX_INSPECT_IND: 3749708b9bdeSMichal Kazior /* Firmware can return tx frames if it's unable to fully 3750708b9bdeSMichal Kazior * process them and suspects host may be able to fix it. ath10k 3751708b9bdeSMichal Kazior * sends all tx frames as already inspected so this shouldn't 3752708b9bdeSMichal Kazior * happen unless fw has a bug. 3753708b9bdeSMichal Kazior */ 37547aa7a72aSMichal Kazior ath10k_warn(ar, "received an unexpected htt tx inspect event\n"); 3755708b9bdeSMichal Kazior break; 37565e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_RX_ADDBA: 3757aa5b4fbcSMichal Kazior ath10k_htt_rx_addba(ar, resp); 3758aa5b4fbcSMichal Kazior break; 37595e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_RX_DELBA: 3760aa5b4fbcSMichal Kazior ath10k_htt_rx_delba(ar, resp); 3761aa5b4fbcSMichal Kazior break; 3762bfdd7937SRajkumar Manoharan case HTT_T2H_MSG_TYPE_PKTLOG: { 3763bfdd7937SRajkumar Manoharan trace_ath10k_htt_pktlog(ar, resp->pktlog_msg.payload, 376434293f75SAshok Raj Nagarajan skb->len - 376534293f75SAshok Raj Nagarajan offsetof(struct htt_resp, 376634293f75SAshok Raj Nagarajan pktlog_msg.payload)); 3767e8123bb7SAnilkumar Kolli 3768e8123bb7SAnilkumar Kolli if (ath10k_peer_stats_enabled(ar)) 3769e8123bb7SAnilkumar Kolli ath10k_fetch_10_2_tx_stats(ar, 3770e8123bb7SAnilkumar Kolli resp->pktlog_msg.payload); 3771bfdd7937SRajkumar Manoharan break; 3772bfdd7937SRajkumar Manoharan } 3773aa5b4fbcSMichal Kazior case HTT_T2H_MSG_TYPE_RX_FLUSH: { 3774aa5b4fbcSMichal Kazior /* Ignore this event because mac80211 takes care of Rx 3775aa5b4fbcSMichal Kazior * aggregation reordering. 3776aa5b4fbcSMichal Kazior */ 3777aa5b4fbcSMichal Kazior break; 3778aa5b4fbcSMichal Kazior } 3779c545070eSMichal Kazior case HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND: { 378062652555SBob Copeland skb_queue_tail(&htt->rx_in_ord_compl_q, skb); 3781e3a91f87SRajkumar Manoharan return false; 3782c545070eSMichal Kazior } 3783c545070eSMichal Kazior case HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND: 37848348db29SRajkumar Manoharan break; 37852ce9b25cSRajkumar Manoharan case HTT_T2H_MSG_TYPE_CHAN_CHANGE: { 37862ce9b25cSRajkumar Manoharan u32 phymode = __le32_to_cpu(resp->chan_change.phymode); 37872ce9b25cSRajkumar Manoharan u32 freq = __le32_to_cpu(resp->chan_change.freq); 37882ce9b25cSRajkumar Manoharan 3789543b921bSArend Van Spriel ar->tgt_oper_chan = ieee80211_get_channel(ar->hw->wiphy, freq); 37902ce9b25cSRajkumar Manoharan ath10k_dbg(ar, ATH10K_DBG_HTT, 37912ce9b25cSRajkumar Manoharan "htt chan change freq %u phymode %s\n", 37922ce9b25cSRajkumar Manoharan freq, ath10k_wmi_phymode_str(phymode)); 3793c545070eSMichal Kazior break; 37942ce9b25cSRajkumar Manoharan } 3795ccec9038SDavid Liu case HTT_T2H_MSG_TYPE_AGGR_CONF: 3796ccec9038SDavid Liu break; 3797b2fdbccdSRajkumar Manoharan case HTT_T2H_MSG_TYPE_TX_FETCH_IND: { 3798b2fdbccdSRajkumar Manoharan struct sk_buff *tx_fetch_ind = skb_copy(skb, GFP_ATOMIC); 3799b2fdbccdSRajkumar Manoharan 3800b2fdbccdSRajkumar Manoharan if (!tx_fetch_ind) { 3801b2fdbccdSRajkumar Manoharan ath10k_warn(ar, "failed to copy htt tx fetch ind\n"); 3802b2fdbccdSRajkumar Manoharan break; 3803b2fdbccdSRajkumar Manoharan } 3804b2fdbccdSRajkumar Manoharan skb_queue_tail(&htt->tx_fetch_ind_q, tx_fetch_ind); 3805b2fdbccdSRajkumar Manoharan break; 3806b2fdbccdSRajkumar Manoharan } 3807df94e702SMichal Kazior case HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM: 3808839ae637SMichal Kazior ath10k_htt_rx_tx_fetch_confirm(ar, skb); 3809839ae637SMichal Kazior break; 3810df94e702SMichal Kazior case HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND: 3811839ae637SMichal Kazior ath10k_htt_rx_tx_mode_switch_ind(ar, skb); 38129b158736SMichal Kazior break; 3813cec17c38SAnilkumar Kolli case HTT_T2H_MSG_TYPE_PEER_STATS: 3814cec17c38SAnilkumar Kolli ath10k_htt_fetch_peer_stats(ar, skb); 3815cec17c38SAnilkumar Kolli break; 38169b158736SMichal Kazior case HTT_T2H_MSG_TYPE_EN_STATS: 38175e3dd157SKalle Valo default: 38182358a544SMichal Kazior ath10k_warn(ar, "htt event (%d) not handled\n", 38195e3dd157SKalle Valo resp->hdr.msg_type); 38207aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt event: ", 38215e3dd157SKalle Valo skb->data, skb->len); 38225e3dd157SKalle Valo break; 3823dab55d10SWaldemar Rymarkiewicz } 3824e3a91f87SRajkumar Manoharan return true; 38255e3dd157SKalle Valo } 38263f0f7ed4SRajkumar Manoharan EXPORT_SYMBOL(ath10k_htt_t2h_msg_handler); 38276c5151a9SMichal Kazior 3828afb0bf7fSVivek Natarajan void ath10k_htt_rx_pktlog_completion_handler(struct ath10k *ar, 3829afb0bf7fSVivek Natarajan struct sk_buff *skb) 3830afb0bf7fSVivek Natarajan { 383153a5c9bcSAshok Raj Nagarajan trace_ath10k_htt_pktlog(ar, skb->data, skb->len); 3832afb0bf7fSVivek Natarajan dev_kfree_skb_any(skb); 3833afb0bf7fSVivek Natarajan } 3834afb0bf7fSVivek Natarajan EXPORT_SYMBOL(ath10k_htt_rx_pktlog_completion_handler); 3835afb0bf7fSVivek Natarajan 3836deba1b9eSRajkumar Manoharan static int ath10k_htt_rx_deliver_msdu(struct ath10k *ar, int quota, int budget) 3837deba1b9eSRajkumar Manoharan { 3838deba1b9eSRajkumar Manoharan struct sk_buff *skb; 3839deba1b9eSRajkumar Manoharan 3840deba1b9eSRajkumar Manoharan while (quota < budget) { 3841deba1b9eSRajkumar Manoharan if (skb_queue_empty(&ar->htt.rx_msdus_q)) 3842deba1b9eSRajkumar Manoharan break; 3843deba1b9eSRajkumar Manoharan 384462652555SBob Copeland skb = skb_dequeue(&ar->htt.rx_msdus_q); 3845deba1b9eSRajkumar Manoharan if (!skb) 3846deba1b9eSRajkumar Manoharan break; 3847deba1b9eSRajkumar Manoharan ath10k_process_rx(ar, skb); 3848deba1b9eSRajkumar Manoharan quota++; 3849deba1b9eSRajkumar Manoharan } 3850deba1b9eSRajkumar Manoharan 3851deba1b9eSRajkumar Manoharan return quota; 3852deba1b9eSRajkumar Manoharan } 3853deba1b9eSRajkumar Manoharan 38543c97f5deSRajkumar Manoharan int ath10k_htt_txrx_compl_task(struct ath10k *ar, int budget) 38556c5151a9SMichal Kazior { 38563c97f5deSRajkumar Manoharan struct ath10k_htt *htt = &ar->htt; 385759465fe4SRajkumar Manoharan struct htt_tx_done tx_done = {}; 3858426e10eaSMichal Kazior struct sk_buff_head tx_ind_q; 38596c5151a9SMichal Kazior struct sk_buff *skb; 3860d742c969SMichal Kazior unsigned long flags; 3861deba1b9eSRajkumar Manoharan int quota = 0, done, ret; 38623c97f5deSRajkumar Manoharan bool resched_napi = false; 38636c5151a9SMichal Kazior 3864426e10eaSMichal Kazior __skb_queue_head_init(&tx_ind_q); 3865da6416caSRajkumar Manoharan 3866deba1b9eSRajkumar Manoharan /* Process pending frames before dequeuing more data 3867deba1b9eSRajkumar Manoharan * from hardware. 38683c97f5deSRajkumar Manoharan */ 3869deba1b9eSRajkumar Manoharan quota = ath10k_htt_rx_deliver_msdu(ar, quota, budget); 3870deba1b9eSRajkumar Manoharan if (quota == budget) { 38713c97f5deSRajkumar Manoharan resched_napi = true; 38723c97f5deSRajkumar Manoharan goto exit; 38733c97f5deSRajkumar Manoharan } 38743c97f5deSRajkumar Manoharan 387562652555SBob Copeland while ((skb = skb_dequeue(&htt->rx_in_ord_compl_q))) { 38763c97f5deSRajkumar Manoharan spin_lock_bh(&htt->rx_ring.lock); 3877deba1b9eSRajkumar Manoharan ret = ath10k_htt_rx_in_ord_ind(ar, skb); 38783c97f5deSRajkumar Manoharan spin_unlock_bh(&htt->rx_ring.lock); 38793c97f5deSRajkumar Manoharan 38803c97f5deSRajkumar Manoharan dev_kfree_skb_any(skb); 3881deba1b9eSRajkumar Manoharan if (ret == -EIO) { 38823c97f5deSRajkumar Manoharan resched_napi = true; 38833c97f5deSRajkumar Manoharan goto exit; 38843c97f5deSRajkumar Manoharan } 38853c97f5deSRajkumar Manoharan } 38863c97f5deSRajkumar Manoharan 3887deba1b9eSRajkumar Manoharan while (atomic_read(&htt->num_mpdus_ready)) { 3888deba1b9eSRajkumar Manoharan ret = ath10k_htt_rx_handle_amsdu(htt); 3889deba1b9eSRajkumar Manoharan if (ret == -EIO) { 38903c97f5deSRajkumar Manoharan resched_napi = true; 38913c97f5deSRajkumar Manoharan goto exit; 38923c97f5deSRajkumar Manoharan } 38933c97f5deSRajkumar Manoharan atomic_dec(&htt->num_mpdus_ready); 38943c97f5deSRajkumar Manoharan } 3895deba1b9eSRajkumar Manoharan 3896deba1b9eSRajkumar Manoharan /* Deliver received data after processing data from hardware */ 3897deba1b9eSRajkumar Manoharan quota = ath10k_htt_rx_deliver_msdu(ar, quota, budget); 38983c97f5deSRajkumar Manoharan 38993c97f5deSRajkumar Manoharan /* From NAPI documentation: 39003c97f5deSRajkumar Manoharan * The napi poll() function may also process TX completions, in which 39013c97f5deSRajkumar Manoharan * case if it processes the entire TX ring then it should count that 39023c97f5deSRajkumar Manoharan * work as the rest of the budget. 39033c97f5deSRajkumar Manoharan */ 39043c97f5deSRajkumar Manoharan if ((quota < budget) && !kfifo_is_empty(&htt->txdone_fifo)) 39053c97f5deSRajkumar Manoharan quota = budget; 3906426e10eaSMichal Kazior 390759465fe4SRajkumar Manoharan /* kfifo_get: called only within txrx_tasklet so it's neatly serialized. 390859465fe4SRajkumar Manoharan * From kfifo_get() documentation: 390959465fe4SRajkumar Manoharan * Note that with only one concurrent reader and one concurrent writer, 391059465fe4SRajkumar Manoharan * you don't need extra locking to use these macro. 391159465fe4SRajkumar Manoharan */ 391259465fe4SRajkumar Manoharan while (kfifo_get(&htt->txdone_fifo, &tx_done)) 391359465fe4SRajkumar Manoharan ath10k_txrx_tx_unref(htt, &tx_done); 39146c5151a9SMichal Kazior 391518f53fe0SRajkumar Manoharan ath10k_mac_tx_push_pending(ar); 391618f53fe0SRajkumar Manoharan 39173c97f5deSRajkumar Manoharan spin_lock_irqsave(&htt->tx_fetch_ind_q.lock, flags); 39183c97f5deSRajkumar Manoharan skb_queue_splice_init(&htt->tx_fetch_ind_q, &tx_ind_q); 39193c97f5deSRajkumar Manoharan spin_unlock_irqrestore(&htt->tx_fetch_ind_q.lock, flags); 39203c97f5deSRajkumar Manoharan 3921426e10eaSMichal Kazior while ((skb = __skb_dequeue(&tx_ind_q))) { 3922426e10eaSMichal Kazior ath10k_htt_rx_tx_fetch_ind(ar, skb); 39236c5151a9SMichal Kazior dev_kfree_skb_any(skb); 39246c5151a9SMichal Kazior } 39256c5151a9SMichal Kazior 39263c97f5deSRajkumar Manoharan exit: 39275c86d97bSRajkumar Manoharan ath10k_htt_rx_msdu_buff_replenish(htt); 39283c97f5deSRajkumar Manoharan /* In case of rx failure or more data to read, report budget 39293c97f5deSRajkumar Manoharan * to reschedule NAPI poll 39303c97f5deSRajkumar Manoharan */ 39313c97f5deSRajkumar Manoharan done = resched_napi ? budget : quota; 39323c97f5deSRajkumar Manoharan 39333c97f5deSRajkumar Manoharan return done; 39346c5151a9SMichal Kazior } 39353c97f5deSRajkumar Manoharan EXPORT_SYMBOL(ath10k_htt_txrx_compl_task); 3936a91a626bSGovind Singh 3937a91a626bSGovind Singh static const struct ath10k_htt_rx_ops htt_rx_ops_32 = { 3938a91a626bSGovind Singh .htt_get_rx_ring_size = ath10k_htt_get_rx_ring_size_32, 3939a91a626bSGovind Singh .htt_config_paddrs_ring = ath10k_htt_config_paddrs_ring_32, 3940a91a626bSGovind Singh .htt_set_paddrs_ring = ath10k_htt_set_paddrs_ring_32, 3941a91a626bSGovind Singh .htt_get_vaddr_ring = ath10k_htt_get_vaddr_ring_32, 3942a91a626bSGovind Singh .htt_reset_paddrs_ring = ath10k_htt_reset_paddrs_ring_32, 3943a91a626bSGovind Singh }; 3944a91a626bSGovind Singh 3945a91a626bSGovind Singh static const struct ath10k_htt_rx_ops htt_rx_ops_64 = { 3946a91a626bSGovind Singh .htt_get_rx_ring_size = ath10k_htt_get_rx_ring_size_64, 3947a91a626bSGovind Singh .htt_config_paddrs_ring = ath10k_htt_config_paddrs_ring_64, 3948a91a626bSGovind Singh .htt_set_paddrs_ring = ath10k_htt_set_paddrs_ring_64, 3949a91a626bSGovind Singh .htt_get_vaddr_ring = ath10k_htt_get_vaddr_ring_64, 3950a91a626bSGovind Singh .htt_reset_paddrs_ring = ath10k_htt_reset_paddrs_ring_64, 3951a91a626bSGovind Singh }; 3952a91a626bSGovind Singh 3953d4e7f553SErik Stromdahl static const struct ath10k_htt_rx_ops htt_rx_ops_hl = { 395433f97472SWen Gong .htt_rx_proc_rx_frag_ind = ath10k_htt_rx_proc_rx_frag_ind_hl, 3955d4e7f553SErik Stromdahl }; 3956d4e7f553SErik Stromdahl 3957a91a626bSGovind Singh void ath10k_htt_set_rx_ops(struct ath10k_htt *htt) 3958a91a626bSGovind Singh { 3959a91a626bSGovind Singh struct ath10k *ar = htt->ar; 3960a91a626bSGovind Singh 3961de8781d7SGovind Singh if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) 3962d4e7f553SErik Stromdahl htt->rx_ops = &htt_rx_ops_hl; 3963d4e7f553SErik Stromdahl else if (ar->hw_params.target_64bit) 3964a91a626bSGovind Singh htt->rx_ops = &htt_rx_ops_64; 3965a91a626bSGovind Singh else 3966a91a626bSGovind Singh htt->rx_ops = &htt_rx_ops_32; 3967a91a626bSGovind Singh } 3968