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
246bae9de6SFrancesco Magliocca /* shortcut to interpret a raw memory buffer as a rx descriptor */
256bae9de6SFrancesco Magliocca #define HTT_RX_BUF_TO_RX_DESC(hw, buf) ath10k_htt_rx_desc_from_raw_buffer(hw, buf)
266bae9de6SFrancesco Magliocca
276bae9de6SFrancesco Magliocca static int ath10k_htt_rx_get_csum_state(struct ath10k_hw_params *hw, struct sk_buff *skb);
28f6dc2095SMichal Kazior
29c545070eSMichal Kazior static struct sk_buff *
ath10k_htt_rx_find_skb_paddr(struct ath10k * ar,u64 paddr)30a91a626bSGovind Singh ath10k_htt_rx_find_skb_paddr(struct ath10k *ar, u64 paddr)
31c545070eSMichal Kazior {
32c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb;
33c545070eSMichal Kazior
34c545070eSMichal Kazior hash_for_each_possible(ar->htt.rx_ring.skb_table, rxcb, hlist, paddr)
35c545070eSMichal Kazior if (rxcb->paddr == paddr)
36c545070eSMichal Kazior return ATH10K_RXCB_SKB(rxcb);
37c545070eSMichal Kazior
38c545070eSMichal Kazior WARN_ON_ONCE(1);
39c545070eSMichal Kazior return NULL;
40c545070eSMichal Kazior }
41c545070eSMichal Kazior
ath10k_htt_rx_ring_free(struct ath10k_htt * htt)425e3dd157SKalle Valo static void ath10k_htt_rx_ring_free(struct ath10k_htt *htt)
435e3dd157SKalle Valo {
445e3dd157SKalle Valo struct sk_buff *skb;
45c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb;
46c545070eSMichal Kazior struct hlist_node *n;
475e3dd157SKalle Valo int i;
485e3dd157SKalle Valo
49c545070eSMichal Kazior if (htt->rx_ring.in_ord_rx) {
50c545070eSMichal Kazior hash_for_each_safe(htt->rx_ring.skb_table, i, n, rxcb, hlist) {
51c545070eSMichal Kazior skb = ATH10K_RXCB_SKB(rxcb);
52c545070eSMichal Kazior dma_unmap_single(htt->ar->dev, rxcb->paddr,
53c545070eSMichal Kazior skb->len + skb_tailroom(skb),
54c545070eSMichal Kazior DMA_FROM_DEVICE);
55c545070eSMichal Kazior hash_del(&rxcb->hlist);
56c545070eSMichal Kazior dev_kfree_skb_any(skb);
57c545070eSMichal Kazior }
58c545070eSMichal Kazior } else {
59c545070eSMichal Kazior for (i = 0; i < htt->rx_ring.size; i++) {
605e3dd157SKalle Valo skb = htt->rx_ring.netbufs_ring[i];
61c545070eSMichal Kazior if (!skb)
62c545070eSMichal Kazior continue;
63c545070eSMichal Kazior
64c545070eSMichal Kazior rxcb = ATH10K_SKB_RXCB(skb);
65c545070eSMichal Kazior dma_unmap_single(htt->ar->dev, rxcb->paddr,
665e3dd157SKalle Valo skb->len + skb_tailroom(skb),
675e3dd157SKalle Valo DMA_FROM_DEVICE);
685e3dd157SKalle Valo dev_kfree_skb_any(skb);
695e3dd157SKalle Valo }
70c545070eSMichal Kazior }
715e3dd157SKalle Valo
725e3dd157SKalle Valo htt->rx_ring.fill_cnt = 0;
73c545070eSMichal Kazior hash_init(htt->rx_ring.skb_table);
74c545070eSMichal Kazior memset(htt->rx_ring.netbufs_ring, 0,
75c545070eSMichal Kazior htt->rx_ring.size * sizeof(htt->rx_ring.netbufs_ring[0]));
765e3dd157SKalle Valo }
775e3dd157SKalle Valo
ath10k_htt_get_rx_ring_size_32(struct ath10k_htt * htt)78a91a626bSGovind Singh static size_t ath10k_htt_get_rx_ring_size_32(struct ath10k_htt *htt)
79a91a626bSGovind Singh {
80a91a626bSGovind Singh return htt->rx_ring.size * sizeof(htt->rx_ring.paddrs_ring_32);
81a91a626bSGovind Singh }
82a91a626bSGovind Singh
ath10k_htt_get_rx_ring_size_64(struct ath10k_htt * htt)83a91a626bSGovind Singh static size_t ath10k_htt_get_rx_ring_size_64(struct ath10k_htt *htt)
84a91a626bSGovind Singh {
85a91a626bSGovind Singh return htt->rx_ring.size * sizeof(htt->rx_ring.paddrs_ring_64);
86a91a626bSGovind Singh }
87a91a626bSGovind Singh
ath10k_htt_config_paddrs_ring_32(struct ath10k_htt * htt,void * vaddr)88a91a626bSGovind Singh static void ath10k_htt_config_paddrs_ring_32(struct ath10k_htt *htt,
89a91a626bSGovind Singh void *vaddr)
90a91a626bSGovind Singh {
91a91a626bSGovind Singh htt->rx_ring.paddrs_ring_32 = vaddr;
92a91a626bSGovind Singh }
93a91a626bSGovind Singh
ath10k_htt_config_paddrs_ring_64(struct ath10k_htt * htt,void * vaddr)94a91a626bSGovind Singh static void ath10k_htt_config_paddrs_ring_64(struct ath10k_htt *htt,
95a91a626bSGovind Singh void *vaddr)
96a91a626bSGovind Singh {
97a91a626bSGovind Singh htt->rx_ring.paddrs_ring_64 = vaddr;
98a91a626bSGovind Singh }
99a91a626bSGovind Singh
ath10k_htt_set_paddrs_ring_32(struct ath10k_htt * htt,dma_addr_t paddr,int idx)100a91a626bSGovind Singh static void ath10k_htt_set_paddrs_ring_32(struct ath10k_htt *htt,
101a91a626bSGovind Singh dma_addr_t paddr, int idx)
102a91a626bSGovind Singh {
103a91a626bSGovind Singh htt->rx_ring.paddrs_ring_32[idx] = __cpu_to_le32(paddr);
104a91a626bSGovind Singh }
105a91a626bSGovind Singh
ath10k_htt_set_paddrs_ring_64(struct ath10k_htt * htt,dma_addr_t paddr,int idx)106a91a626bSGovind Singh static void ath10k_htt_set_paddrs_ring_64(struct ath10k_htt *htt,
107a91a626bSGovind Singh dma_addr_t paddr, int idx)
108a91a626bSGovind Singh {
109a91a626bSGovind Singh htt->rx_ring.paddrs_ring_64[idx] = __cpu_to_le64(paddr);
110a91a626bSGovind Singh }
111a91a626bSGovind Singh
ath10k_htt_reset_paddrs_ring_32(struct ath10k_htt * htt,int idx)112a91a626bSGovind Singh static void ath10k_htt_reset_paddrs_ring_32(struct ath10k_htt *htt, int idx)
113a91a626bSGovind Singh {
114a91a626bSGovind Singh htt->rx_ring.paddrs_ring_32[idx] = 0;
115a91a626bSGovind Singh }
116a91a626bSGovind Singh
ath10k_htt_reset_paddrs_ring_64(struct ath10k_htt * htt,int idx)117a91a626bSGovind Singh static void ath10k_htt_reset_paddrs_ring_64(struct ath10k_htt *htt, int idx)
118a91a626bSGovind Singh {
119a91a626bSGovind Singh htt->rx_ring.paddrs_ring_64[idx] = 0;
120a91a626bSGovind Singh }
121a91a626bSGovind Singh
ath10k_htt_get_vaddr_ring_32(struct ath10k_htt * htt)122a91a626bSGovind Singh static void *ath10k_htt_get_vaddr_ring_32(struct ath10k_htt *htt)
123a91a626bSGovind Singh {
124a91a626bSGovind Singh return (void *)htt->rx_ring.paddrs_ring_32;
125a91a626bSGovind Singh }
126a91a626bSGovind Singh
ath10k_htt_get_vaddr_ring_64(struct ath10k_htt * htt)127a91a626bSGovind Singh static void *ath10k_htt_get_vaddr_ring_64(struct ath10k_htt *htt)
128a91a626bSGovind Singh {
129a91a626bSGovind Singh return (void *)htt->rx_ring.paddrs_ring_64;
130a91a626bSGovind Singh }
131a91a626bSGovind Singh
__ath10k_htt_rx_ring_fill_n(struct ath10k_htt * htt,int num)1325e3dd157SKalle Valo static int __ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num)
1335e3dd157SKalle Valo {
1346bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &htt->ar->hw_params;
1355e3dd157SKalle Valo struct htt_rx_desc *rx_desc;
136c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb;
1375e3dd157SKalle Valo struct sk_buff *skb;
1385e3dd157SKalle Valo dma_addr_t paddr;
1395e3dd157SKalle Valo int ret = 0, idx;
1405e3dd157SKalle Valo
141c545070eSMichal Kazior /* The Full Rx Reorder firmware has no way of telling the host
142c545070eSMichal Kazior * implicitly when it copied HTT Rx Ring buffers to MAC Rx Ring.
143c545070eSMichal Kazior * To keep things simple make sure ring is always half empty. This
144c545070eSMichal Kazior * guarantees there'll be no replenishment overruns possible.
145c545070eSMichal Kazior */
146c545070eSMichal Kazior BUILD_BUG_ON(HTT_RX_RING_FILL_LEVEL >= HTT_RX_RING_SIZE / 2);
147c545070eSMichal Kazior
1488cc7f26cSKalle Valo idx = __le32_to_cpu(*htt->rx_ring.alloc_idx.vaddr);
149bad60b8dSZekun Shen
150bad60b8dSZekun Shen if (idx < 0 || idx >= htt->rx_ring.size) {
151bad60b8dSZekun Shen ath10k_err(htt->ar, "rx ring index is not valid, firmware malfunctioning?\n");
152bad60b8dSZekun Shen idx &= htt->rx_ring.size_mask;
153bad60b8dSZekun Shen ret = -ENOMEM;
154bad60b8dSZekun Shen goto fail;
155bad60b8dSZekun Shen }
156bad60b8dSZekun Shen
1575e3dd157SKalle Valo while (num > 0) {
1585e3dd157SKalle Valo skb = dev_alloc_skb(HTT_RX_BUF_SIZE + HTT_RX_DESC_ALIGN);
1595e3dd157SKalle Valo if (!skb) {
1605e3dd157SKalle Valo ret = -ENOMEM;
1615e3dd157SKalle Valo goto fail;
1625e3dd157SKalle Valo }
1635e3dd157SKalle Valo
1645e3dd157SKalle Valo if (!IS_ALIGNED((unsigned long)skb->data, HTT_RX_DESC_ALIGN))
1655e3dd157SKalle Valo skb_pull(skb,
1665e3dd157SKalle Valo PTR_ALIGN(skb->data, HTT_RX_DESC_ALIGN) -
1675e3dd157SKalle Valo skb->data);
1685e3dd157SKalle Valo
1695e3dd157SKalle Valo /* Clear rx_desc attention word before posting to Rx ring */
1706bae9de6SFrancesco Magliocca rx_desc = HTT_RX_BUF_TO_RX_DESC(hw, skb->data);
1716bae9de6SFrancesco Magliocca ath10k_htt_rx_desc_get_attention(hw, rx_desc)->flags = __cpu_to_le32(0);
1725e3dd157SKalle Valo
1735e3dd157SKalle Valo paddr = dma_map_single(htt->ar->dev, skb->data,
1745e3dd157SKalle Valo skb->len + skb_tailroom(skb),
1755e3dd157SKalle Valo DMA_FROM_DEVICE);
1765e3dd157SKalle Valo
1775e3dd157SKalle Valo if (unlikely(dma_mapping_error(htt->ar->dev, paddr))) {
1785e3dd157SKalle Valo dev_kfree_skb_any(skb);
1795e3dd157SKalle Valo ret = -ENOMEM;
1805e3dd157SKalle Valo goto fail;
1815e3dd157SKalle Valo }
1825e3dd157SKalle Valo
183c545070eSMichal Kazior rxcb = ATH10K_SKB_RXCB(skb);
184c545070eSMichal Kazior rxcb->paddr = paddr;
1855e3dd157SKalle Valo htt->rx_ring.netbufs_ring[idx] = skb;
1869a5511d5SErik Stromdahl ath10k_htt_set_paddrs_ring(htt, paddr, idx);
1875e3dd157SKalle Valo htt->rx_ring.fill_cnt++;
1885e3dd157SKalle Valo
189c545070eSMichal Kazior if (htt->rx_ring.in_ord_rx) {
190c545070eSMichal Kazior hash_add(htt->rx_ring.skb_table,
191c545070eSMichal Kazior &ATH10K_SKB_RXCB(skb)->hlist,
192a91a626bSGovind Singh paddr);
193c545070eSMichal Kazior }
194c545070eSMichal Kazior
1955e3dd157SKalle Valo num--;
1965e3dd157SKalle Valo idx++;
1975e3dd157SKalle Valo idx &= htt->rx_ring.size_mask;
1985e3dd157SKalle Valo }
1995e3dd157SKalle Valo
2005e3dd157SKalle Valo fail:
2015de6dfc8SVasanthakumar Thiagarajan /*
2025de6dfc8SVasanthakumar Thiagarajan * Make sure the rx buffer is updated before available buffer
2035de6dfc8SVasanthakumar Thiagarajan * index to avoid any potential rx ring corruption.
2045de6dfc8SVasanthakumar Thiagarajan */
2055de6dfc8SVasanthakumar Thiagarajan mb();
2068cc7f26cSKalle Valo *htt->rx_ring.alloc_idx.vaddr = __cpu_to_le32(idx);
2075e3dd157SKalle Valo return ret;
2085e3dd157SKalle Valo }
2095e3dd157SKalle Valo
ath10k_htt_rx_ring_fill_n(struct ath10k_htt * htt,int num)2105e3dd157SKalle Valo static int ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num)
2115e3dd157SKalle Valo {
2125e3dd157SKalle Valo lockdep_assert_held(&htt->rx_ring.lock);
2135e3dd157SKalle Valo return __ath10k_htt_rx_ring_fill_n(htt, num);
2145e3dd157SKalle Valo }
2155e3dd157SKalle Valo
ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt * htt)2165e3dd157SKalle Valo static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt)
2175e3dd157SKalle Valo {
2186e712d42SMichal Kazior int ret, num_deficit, num_to_fill;
2195e3dd157SKalle Valo
2206e712d42SMichal Kazior /* Refilling the whole RX ring buffer proves to be a bad idea. The
2216e712d42SMichal Kazior * reason is RX may take up significant amount of CPU cycles and starve
2226e712d42SMichal Kazior * other tasks, e.g. TX on an ethernet device while acting as a bridge
2236e712d42SMichal Kazior * with ath10k wlan interface. This ended up with very poor performance
2246e712d42SMichal Kazior * once CPU the host system was overwhelmed with RX on ath10k.
2256e712d42SMichal Kazior *
2266e712d42SMichal Kazior * By limiting the number of refills the replenishing occurs
2276e712d42SMichal Kazior * progressively. This in turns makes use of the fact tasklets are
2286e712d42SMichal Kazior * processed in FIFO order. This means actual RX processing can starve
2296e712d42SMichal Kazior * out refilling. If there's not enough buffers on RX ring FW will not
2306e712d42SMichal Kazior * report RX until it is refilled with enough buffers. This
2316e712d42SMichal Kazior * automatically balances load wrt to CPU power.
2326e712d42SMichal Kazior *
2336e712d42SMichal Kazior * This probably comes at a cost of lower maximum throughput but
234d6dfe25cSMarcin Rokicki * improves the average and stability.
235d6dfe25cSMarcin Rokicki */
2365e3dd157SKalle Valo spin_lock_bh(&htt->rx_ring.lock);
2376e712d42SMichal Kazior num_deficit = htt->rx_ring.fill_level - htt->rx_ring.fill_cnt;
2386e712d42SMichal Kazior num_to_fill = min(ATH10K_HTT_MAX_NUM_REFILL, num_deficit);
2396e712d42SMichal Kazior num_deficit -= num_to_fill;
2405e3dd157SKalle Valo ret = ath10k_htt_rx_ring_fill_n(htt, num_to_fill);
2415e3dd157SKalle Valo if (ret == -ENOMEM) {
2425e3dd157SKalle Valo /*
2435e3dd157SKalle Valo * Failed to fill it to the desired level -
2445e3dd157SKalle Valo * we'll start a timer and try again next time.
2455e3dd157SKalle Valo * As long as enough buffers are left in the ring for
2465e3dd157SKalle Valo * another A-MPDU rx, no special recovery is needed.
2475e3dd157SKalle Valo */
2485e3dd157SKalle Valo mod_timer(&htt->rx_ring.refill_retry_timer, jiffies +
2495e3dd157SKalle Valo msecs_to_jiffies(HTT_RX_RING_REFILL_RETRY_MS));
2506e712d42SMichal Kazior } else if (num_deficit > 0) {
2515c86d97bSRajkumar Manoharan mod_timer(&htt->rx_ring.refill_retry_timer, jiffies +
2525c86d97bSRajkumar Manoharan msecs_to_jiffies(HTT_RX_RING_REFILL_RESCHED_MS));
2535e3dd157SKalle Valo }
2545e3dd157SKalle Valo spin_unlock_bh(&htt->rx_ring.lock);
2555e3dd157SKalle Valo }
2565e3dd157SKalle Valo
ath10k_htt_rx_ring_refill_retry(struct timer_list * t)2577ac76764SKees Cook static void ath10k_htt_rx_ring_refill_retry(struct timer_list *t)
2585e3dd157SKalle Valo {
2597ac76764SKees Cook struct ath10k_htt *htt = from_timer(htt, t, rx_ring.refill_retry_timer);
260af762c0bSKalle Valo
2615e3dd157SKalle Valo ath10k_htt_rx_msdu_buff_replenish(htt);
2625e3dd157SKalle Valo }
2635e3dd157SKalle Valo
ath10k_htt_rx_ring_refill(struct ath10k * ar)264c545070eSMichal Kazior int ath10k_htt_rx_ring_refill(struct ath10k *ar)
2653e841fd0SMichal Kazior {
266c545070eSMichal Kazior struct ath10k_htt *htt = &ar->htt;
267c545070eSMichal Kazior int ret;
2683e841fd0SMichal Kazior
269de8781d7SGovind Singh if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
270f88d4934SErik Stromdahl return 0;
271f88d4934SErik Stromdahl
272c545070eSMichal Kazior spin_lock_bh(&htt->rx_ring.lock);
273c545070eSMichal Kazior ret = ath10k_htt_rx_ring_fill_n(htt, (htt->rx_ring.fill_level -
274c545070eSMichal Kazior htt->rx_ring.fill_cnt));
2753e841fd0SMichal Kazior
276c545070eSMichal Kazior if (ret)
277c545070eSMichal Kazior ath10k_htt_rx_ring_free(htt);
278c545070eSMichal Kazior
279168f75f1SBen Greear spin_unlock_bh(&htt->rx_ring.lock);
280168f75f1SBen Greear
281c545070eSMichal Kazior return ret;
2823e841fd0SMichal Kazior }
2833e841fd0SMichal Kazior
ath10k_htt_rx_free(struct ath10k_htt * htt)28495bf21f9SMichal Kazior void ath10k_htt_rx_free(struct ath10k_htt *htt)
2855e3dd157SKalle Valo {
286de8781d7SGovind Singh if (htt->ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
287f88d4934SErik Stromdahl return;
288f88d4934SErik Stromdahl
2895e3dd157SKalle Valo del_timer_sync(&htt->rx_ring.refill_retry_timer);
2906c5151a9SMichal Kazior
291deba1b9eSRajkumar Manoharan skb_queue_purge(&htt->rx_msdus_q);
292c545070eSMichal Kazior skb_queue_purge(&htt->rx_in_ord_compl_q);
293426e10eaSMichal Kazior skb_queue_purge(&htt->tx_fetch_ind_q);
2945e3dd157SKalle Valo
295168f75f1SBen Greear spin_lock_bh(&htt->rx_ring.lock);
296c545070eSMichal Kazior ath10k_htt_rx_ring_free(htt);
297168f75f1SBen Greear spin_unlock_bh(&htt->rx_ring.lock);
2985e3dd157SKalle Valo
2995e3dd157SKalle Valo dma_free_coherent(htt->ar->dev,
3009a5511d5SErik Stromdahl ath10k_htt_get_rx_ring_size(htt),
3019a5511d5SErik Stromdahl ath10k_htt_get_vaddr_ring(htt),
3025e3dd157SKalle Valo htt->rx_ring.base_paddr);
3035e3dd157SKalle Valo
3041e1cb8e0SWen Gong ath10k_htt_config_paddrs_ring(htt, NULL);
3051e1cb8e0SWen Gong
3065e3dd157SKalle Valo dma_free_coherent(htt->ar->dev,
3075e3dd157SKalle Valo sizeof(*htt->rx_ring.alloc_idx.vaddr),
3085e3dd157SKalle Valo htt->rx_ring.alloc_idx.vaddr,
3095e3dd157SKalle Valo htt->rx_ring.alloc_idx.paddr);
3101e1cb8e0SWen Gong htt->rx_ring.alloc_idx.vaddr = NULL;
3115e3dd157SKalle Valo
3125e3dd157SKalle Valo kfree(htt->rx_ring.netbufs_ring);
3131e1cb8e0SWen Gong htt->rx_ring.netbufs_ring = NULL;
3145e3dd157SKalle Valo }
3155e3dd157SKalle Valo
ath10k_htt_rx_netbuf_pop(struct ath10k_htt * htt)3165e3dd157SKalle Valo static inline struct sk_buff *ath10k_htt_rx_netbuf_pop(struct ath10k_htt *htt)
3175e3dd157SKalle Valo {
3187aa7a72aSMichal Kazior struct ath10k *ar = htt->ar;
3195e3dd157SKalle Valo int idx;
3205e3dd157SKalle Valo struct sk_buff *msdu;
3215e3dd157SKalle Valo
32245967089SMichal Kazior lockdep_assert_held(&htt->rx_ring.lock);
3235e3dd157SKalle Valo
3248d60ee87SMichal Kazior if (htt->rx_ring.fill_cnt == 0) {
3257aa7a72aSMichal Kazior ath10k_warn(ar, "tried to pop sk_buff from an empty rx ring\n");
3268d60ee87SMichal Kazior return NULL;
3278d60ee87SMichal Kazior }
3285e3dd157SKalle Valo
3295e3dd157SKalle Valo idx = htt->rx_ring.sw_rd_idx.msdu_payld;
3305e3dd157SKalle Valo msdu = htt->rx_ring.netbufs_ring[idx];
3313e841fd0SMichal Kazior htt->rx_ring.netbufs_ring[idx] = NULL;
3329a5511d5SErik Stromdahl ath10k_htt_reset_paddrs_ring(htt, idx);
3335e3dd157SKalle Valo
3345e3dd157SKalle Valo idx++;
3355e3dd157SKalle Valo idx &= htt->rx_ring.size_mask;
3365e3dd157SKalle Valo htt->rx_ring.sw_rd_idx.msdu_payld = idx;
3375e3dd157SKalle Valo htt->rx_ring.fill_cnt--;
3385e3dd157SKalle Valo
3394de02806SMichal Kazior dma_unmap_single(htt->ar->dev,
3408582bf3bSMichal Kazior ATH10K_SKB_RXCB(msdu)->paddr,
3414de02806SMichal Kazior msdu->len + skb_tailroom(msdu),
3424de02806SMichal Kazior DMA_FROM_DEVICE);
3434de02806SMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt rx netbuf pop: ",
3444de02806SMichal Kazior msdu->data, msdu->len + skb_tailroom(msdu));
3454de02806SMichal Kazior
3465e3dd157SKalle Valo return msdu;
3475e3dd157SKalle Valo }
3485e3dd157SKalle Valo
349d84dd60fSJanusz Dziedzic /* return: < 0 fatal error, 0 - non chained msdu, 1 chained msdu */
ath10k_htt_rx_amsdu_pop(struct ath10k_htt * htt,struct sk_buff_head * amsdu)3505e3dd157SKalle Valo static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
351f0e2770fSMichal Kazior struct sk_buff_head *amsdu)
3525e3dd157SKalle Valo {
3537aa7a72aSMichal Kazior struct ath10k *ar = htt->ar;
3546bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
3555e3dd157SKalle Valo int msdu_len, msdu_chaining = 0;
3569aa505d2SMichal Kazior struct sk_buff *msdu;
3575e3dd157SKalle Valo struct htt_rx_desc *rx_desc;
3586bae9de6SFrancesco Magliocca struct rx_attention *rx_desc_attention;
3596bae9de6SFrancesco Magliocca struct rx_frag_info_common *rx_desc_frag_info_common;
3606bae9de6SFrancesco Magliocca struct rx_msdu_start_common *rx_desc_msdu_start_common;
3616bae9de6SFrancesco Magliocca struct rx_msdu_end_common *rx_desc_msdu_end_common;
3625e3dd157SKalle Valo
36345967089SMichal Kazior lockdep_assert_held(&htt->rx_ring.lock);
36445967089SMichal Kazior
3659aa505d2SMichal Kazior for (;;) {
3665e3dd157SKalle Valo int last_msdu, msdu_len_invalid, msdu_chained;
3675e3dd157SKalle Valo
3689aa505d2SMichal Kazior msdu = ath10k_htt_rx_netbuf_pop(htt);
3699aa505d2SMichal Kazior if (!msdu) {
3709aa505d2SMichal Kazior __skb_queue_purge(amsdu);
371e0bd7513SMichal Kazior return -ENOENT;
3729aa505d2SMichal Kazior }
3739aa505d2SMichal Kazior
3749aa505d2SMichal Kazior __skb_queue_tail(amsdu, msdu);
3759aa505d2SMichal Kazior
3766bae9de6SFrancesco Magliocca rx_desc = HTT_RX_BUF_TO_RX_DESC(hw, msdu->data);
3776bae9de6SFrancesco Magliocca rx_desc_attention = ath10k_htt_rx_desc_get_attention(hw, rx_desc);
3786bae9de6SFrancesco Magliocca rx_desc_msdu_start_common = ath10k_htt_rx_desc_get_msdu_start(hw,
3796bae9de6SFrancesco Magliocca rx_desc);
3806bae9de6SFrancesco Magliocca rx_desc_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rx_desc);
3816bae9de6SFrancesco Magliocca rx_desc_frag_info_common = ath10k_htt_rx_desc_get_frag_info(hw, rx_desc);
3825e3dd157SKalle Valo
3835e3dd157SKalle Valo /* FIXME: we must report msdu payload since this is what caller
384d6dfe25cSMarcin Rokicki * expects now
385d6dfe25cSMarcin Rokicki */
3866bae9de6SFrancesco Magliocca skb_put(msdu, hw->rx_desc_ops->rx_desc_msdu_payload_offset);
3876bae9de6SFrancesco Magliocca skb_pull(msdu, hw->rx_desc_ops->rx_desc_msdu_payload_offset);
3885e3dd157SKalle Valo
3895e3dd157SKalle Valo /*
3905e3dd157SKalle Valo * Sanity check - confirm the HW is finished filling in the
3915e3dd157SKalle Valo * rx data.
3925e3dd157SKalle Valo * If the HW and SW are working correctly, then it's guaranteed
3935e3dd157SKalle Valo * that the HW's MAC DMA is done before this point in the SW.
3945e3dd157SKalle Valo * To prevent the case that we handle a stale Rx descriptor,
3955e3dd157SKalle Valo * just assert for now until we have a way to recover.
3965e3dd157SKalle Valo */
3976bae9de6SFrancesco Magliocca if (!(__le32_to_cpu(rx_desc_attention->flags)
3985e3dd157SKalle Valo & RX_ATTENTION_FLAGS_MSDU_DONE)) {
3999aa505d2SMichal Kazior __skb_queue_purge(amsdu);
400e0bd7513SMichal Kazior return -EIO;
4015e3dd157SKalle Valo }
4025e3dd157SKalle Valo
4036bae9de6SFrancesco Magliocca msdu_len_invalid = !!(__le32_to_cpu(rx_desc_attention->flags)
4045e3dd157SKalle Valo & (RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR |
4055e3dd157SKalle Valo RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR));
4066bae9de6SFrancesco Magliocca msdu_len = MS(__le32_to_cpu(rx_desc_msdu_start_common->info0),
4075e3dd157SKalle Valo RX_MSDU_START_INFO0_MSDU_LENGTH);
4086bae9de6SFrancesco Magliocca msdu_chained = rx_desc_frag_info_common->ring2_more_count;
4095e3dd157SKalle Valo
4105e3dd157SKalle Valo if (msdu_len_invalid)
4115e3dd157SKalle Valo msdu_len = 0;
4125e3dd157SKalle Valo
4135e3dd157SKalle Valo skb_trim(msdu, 0);
4146bae9de6SFrancesco Magliocca skb_put(msdu, min(msdu_len, ath10k_htt_rx_msdu_size(hw)));
4155e3dd157SKalle Valo msdu_len -= msdu->len;
4165e3dd157SKalle Valo
4179aa505d2SMichal Kazior /* Note: Chained buffers do not contain rx descriptor */
4185e3dd157SKalle Valo while (msdu_chained--) {
4199aa505d2SMichal Kazior msdu = ath10k_htt_rx_netbuf_pop(htt);
4209aa505d2SMichal Kazior if (!msdu) {
4219aa505d2SMichal Kazior __skb_queue_purge(amsdu);
422e0bd7513SMichal Kazior return -ENOENT;
423b30595aeSMichal Kazior }
424b30595aeSMichal Kazior
4259aa505d2SMichal Kazior __skb_queue_tail(amsdu, msdu);
4269aa505d2SMichal Kazior skb_trim(msdu, 0);
4279aa505d2SMichal Kazior skb_put(msdu, min(msdu_len, HTT_RX_BUF_SIZE));
4289aa505d2SMichal Kazior msdu_len -= msdu->len;
429ede9c8e0SMichal Kazior msdu_chaining = 1;
4305e3dd157SKalle Valo }
4315e3dd157SKalle Valo
4326bae9de6SFrancesco Magliocca last_msdu = __le32_to_cpu(rx_desc_msdu_end_common->info0) &
4335e3dd157SKalle Valo RX_MSDU_END_INFO0_LAST_MSDU;
4345e3dd157SKalle Valo
4356bae9de6SFrancesco Magliocca /* FIXME: why are we skipping the first part of the rx_desc? */
43649ffac59SFrancesco Magliocca trace_ath10k_htt_rx_desc(ar, (void *)rx_desc + sizeof(u32),
4376bae9de6SFrancesco Magliocca hw->rx_desc_ops->rx_desc_size - sizeof(u32));
4389aa505d2SMichal Kazior
4399aa505d2SMichal Kazior if (last_msdu)
4405e3dd157SKalle Valo break;
441d8bb26b9SKalle Valo }
442d8bb26b9SKalle Valo
4439aa505d2SMichal Kazior if (skb_queue_empty(amsdu))
444d84dd60fSJanusz Dziedzic msdu_chaining = -1;
445d84dd60fSJanusz Dziedzic
4465e3dd157SKalle Valo /*
4475e3dd157SKalle Valo * Don't refill the ring yet.
4485e3dd157SKalle Valo *
4495e3dd157SKalle Valo * First, the elements popped here are still in use - it is not
4505e3dd157SKalle Valo * safe to overwrite them until the matching call to
4515e3dd157SKalle Valo * mpdu_desc_list_next. Second, for efficiency it is preferable to
4525e3dd157SKalle Valo * refill the rx ring with 1 PPDU's worth of rx buffers (something
4535e3dd157SKalle Valo * like 32 x 3 buffers), rather than one MPDU's worth of rx buffers
4545e3dd157SKalle Valo * (something like 3 buffers). Consequently, we'll rely on the txrx
4555e3dd157SKalle Valo * SW to tell us when it is done pulling all the PPDU's rx buffers
4565e3dd157SKalle Valo * out of the rx ring, and then refill it just once.
4575e3dd157SKalle Valo */
4585e3dd157SKalle Valo
4595e3dd157SKalle Valo return msdu_chaining;
4605e3dd157SKalle Valo }
4615e3dd157SKalle Valo
ath10k_htt_rx_pop_paddr(struct ath10k_htt * htt,u64 paddr)462c545070eSMichal Kazior static struct sk_buff *ath10k_htt_rx_pop_paddr(struct ath10k_htt *htt,
463a91a626bSGovind Singh u64 paddr)
464c545070eSMichal Kazior {
465c545070eSMichal Kazior struct ath10k *ar = htt->ar;
466c545070eSMichal Kazior struct ath10k_skb_rxcb *rxcb;
467c545070eSMichal Kazior struct sk_buff *msdu;
468c545070eSMichal Kazior
469c545070eSMichal Kazior lockdep_assert_held(&htt->rx_ring.lock);
470c545070eSMichal Kazior
471c545070eSMichal Kazior msdu = ath10k_htt_rx_find_skb_paddr(ar, paddr);
472c545070eSMichal Kazior if (!msdu)
473c545070eSMichal Kazior return NULL;
474c545070eSMichal Kazior
475c545070eSMichal Kazior rxcb = ATH10K_SKB_RXCB(msdu);
476c545070eSMichal Kazior hash_del(&rxcb->hlist);
477c545070eSMichal Kazior htt->rx_ring.fill_cnt--;
478c545070eSMichal Kazior
479c545070eSMichal Kazior dma_unmap_single(htt->ar->dev, rxcb->paddr,
480c545070eSMichal Kazior msdu->len + skb_tailroom(msdu),
481c545070eSMichal Kazior DMA_FROM_DEVICE);
482c545070eSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt rx netbuf pop: ",
483c545070eSMichal Kazior msdu->data, msdu->len + skb_tailroom(msdu));
484c545070eSMichal Kazior
485c545070eSMichal Kazior return msdu;
486c545070eSMichal Kazior }
487c545070eSMichal Kazior
ath10k_htt_append_frag_list(struct sk_buff * skb_head,struct sk_buff * frag_list,unsigned int frag_len)48885bd0107SYu Wang static inline void ath10k_htt_append_frag_list(struct sk_buff *skb_head,
48985bd0107SYu Wang struct sk_buff *frag_list,
49085bd0107SYu Wang unsigned int frag_len)
49185bd0107SYu Wang {
49285bd0107SYu Wang skb_shinfo(skb_head)->frag_list = frag_list;
49385bd0107SYu Wang skb_head->data_len = frag_len;
49485bd0107SYu Wang skb_head->len += skb_head->data_len;
49585bd0107SYu Wang }
49685bd0107SYu Wang
ath10k_htt_rx_handle_amsdu_mon_32(struct ath10k_htt * htt,struct sk_buff * msdu,struct htt_rx_in_ord_msdu_desc ** msdu_desc)49785bd0107SYu Wang static int ath10k_htt_rx_handle_amsdu_mon_32(struct ath10k_htt *htt,
49885bd0107SYu Wang struct sk_buff *msdu,
49985bd0107SYu Wang struct htt_rx_in_ord_msdu_desc **msdu_desc)
50085bd0107SYu Wang {
50185bd0107SYu Wang struct ath10k *ar = htt->ar;
5026bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
50385bd0107SYu Wang u32 paddr;
50485bd0107SYu Wang struct sk_buff *frag_buf;
50585bd0107SYu Wang struct sk_buff *prev_frag_buf;
50685bd0107SYu Wang u8 last_frag;
50785bd0107SYu Wang struct htt_rx_in_ord_msdu_desc *ind_desc = *msdu_desc;
50885bd0107SYu Wang struct htt_rx_desc *rxd;
50985bd0107SYu Wang int amsdu_len = __le16_to_cpu(ind_desc->msdu_len);
51085bd0107SYu Wang
5116bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw, msdu->data);
5126bae9de6SFrancesco Magliocca trace_ath10k_htt_rx_desc(ar, rxd, hw->rx_desc_ops->rx_desc_size);
51385bd0107SYu Wang
5146bae9de6SFrancesco Magliocca skb_put(msdu, hw->rx_desc_ops->rx_desc_size);
5156bae9de6SFrancesco Magliocca skb_pull(msdu, hw->rx_desc_ops->rx_desc_size);
5166bae9de6SFrancesco Magliocca skb_put(msdu, min(amsdu_len, ath10k_htt_rx_msdu_size(hw)));
51785bd0107SYu Wang amsdu_len -= msdu->len;
51885bd0107SYu Wang
51985bd0107SYu Wang last_frag = ind_desc->reserved;
52085bd0107SYu Wang if (last_frag) {
52185bd0107SYu Wang if (amsdu_len) {
52285bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d",
52385bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len),
52485bd0107SYu Wang amsdu_len);
52585bd0107SYu Wang }
52685bd0107SYu Wang return 0;
52785bd0107SYu Wang }
52885bd0107SYu Wang
52985bd0107SYu Wang ind_desc++;
53085bd0107SYu Wang paddr = __le32_to_cpu(ind_desc->msdu_paddr);
53185bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr);
53285bd0107SYu Wang if (!frag_buf) {
53385bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-1 paddr: 0x%x", paddr);
53485bd0107SYu Wang return -ENOENT;
53585bd0107SYu Wang }
53685bd0107SYu Wang
53785bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE));
53885bd0107SYu Wang ath10k_htt_append_frag_list(msdu, frag_buf, amsdu_len);
53985bd0107SYu Wang
54085bd0107SYu Wang amsdu_len -= frag_buf->len;
54185bd0107SYu Wang prev_frag_buf = frag_buf;
54285bd0107SYu Wang last_frag = ind_desc->reserved;
54385bd0107SYu Wang while (!last_frag) {
54485bd0107SYu Wang ind_desc++;
54585bd0107SYu Wang paddr = __le32_to_cpu(ind_desc->msdu_paddr);
54685bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr);
54785bd0107SYu Wang if (!frag_buf) {
54885bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-n paddr: 0x%x",
54985bd0107SYu Wang paddr);
55085bd0107SYu Wang prev_frag_buf->next = NULL;
55185bd0107SYu Wang return -ENOENT;
55285bd0107SYu Wang }
55385bd0107SYu Wang
55485bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE));
55585bd0107SYu Wang last_frag = ind_desc->reserved;
55685bd0107SYu Wang amsdu_len -= frag_buf->len;
55785bd0107SYu Wang
55885bd0107SYu Wang prev_frag_buf->next = frag_buf;
55985bd0107SYu Wang prev_frag_buf = frag_buf;
56085bd0107SYu Wang }
56185bd0107SYu Wang
56285bd0107SYu Wang if (amsdu_len) {
56385bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d",
56485bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len), amsdu_len);
56585bd0107SYu Wang }
56685bd0107SYu Wang
56785bd0107SYu Wang *msdu_desc = ind_desc;
56885bd0107SYu Wang
56985bd0107SYu Wang prev_frag_buf->next = NULL;
57085bd0107SYu Wang return 0;
57185bd0107SYu Wang }
57285bd0107SYu Wang
57385bd0107SYu Wang static int
ath10k_htt_rx_handle_amsdu_mon_64(struct ath10k_htt * htt,struct sk_buff * msdu,struct htt_rx_in_ord_msdu_desc_ext ** msdu_desc)57485bd0107SYu Wang ath10k_htt_rx_handle_amsdu_mon_64(struct ath10k_htt *htt,
57585bd0107SYu Wang struct sk_buff *msdu,
57685bd0107SYu Wang struct htt_rx_in_ord_msdu_desc_ext **msdu_desc)
57785bd0107SYu Wang {
57885bd0107SYu Wang struct ath10k *ar = htt->ar;
5796bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
58085bd0107SYu Wang u64 paddr;
58185bd0107SYu Wang struct sk_buff *frag_buf;
58285bd0107SYu Wang struct sk_buff *prev_frag_buf;
58385bd0107SYu Wang u8 last_frag;
58485bd0107SYu Wang struct htt_rx_in_ord_msdu_desc_ext *ind_desc = *msdu_desc;
58585bd0107SYu Wang struct htt_rx_desc *rxd;
58685bd0107SYu Wang int amsdu_len = __le16_to_cpu(ind_desc->msdu_len);
58785bd0107SYu Wang
5886bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw, msdu->data);
5896bae9de6SFrancesco Magliocca trace_ath10k_htt_rx_desc(ar, rxd, hw->rx_desc_ops->rx_desc_size);
59085bd0107SYu Wang
5916bae9de6SFrancesco Magliocca skb_put(msdu, hw->rx_desc_ops->rx_desc_size);
5926bae9de6SFrancesco Magliocca skb_pull(msdu, hw->rx_desc_ops->rx_desc_size);
5936bae9de6SFrancesco Magliocca skb_put(msdu, min(amsdu_len, ath10k_htt_rx_msdu_size(hw)));
59485bd0107SYu Wang amsdu_len -= msdu->len;
59585bd0107SYu Wang
59685bd0107SYu Wang last_frag = ind_desc->reserved;
59785bd0107SYu Wang if (last_frag) {
59885bd0107SYu Wang if (amsdu_len) {
59985bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d",
60085bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len),
60185bd0107SYu Wang amsdu_len);
60285bd0107SYu Wang }
60385bd0107SYu Wang return 0;
60485bd0107SYu Wang }
60585bd0107SYu Wang
60685bd0107SYu Wang ind_desc++;
60785bd0107SYu Wang paddr = __le64_to_cpu(ind_desc->msdu_paddr);
60885bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr);
60985bd0107SYu Wang if (!frag_buf) {
61085bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-1 paddr: 0x%llx", paddr);
61185bd0107SYu Wang return -ENOENT;
61285bd0107SYu Wang }
61385bd0107SYu Wang
61485bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE));
61585bd0107SYu Wang ath10k_htt_append_frag_list(msdu, frag_buf, amsdu_len);
61685bd0107SYu Wang
61785bd0107SYu Wang amsdu_len -= frag_buf->len;
61885bd0107SYu Wang prev_frag_buf = frag_buf;
61985bd0107SYu Wang last_frag = ind_desc->reserved;
62085bd0107SYu Wang while (!last_frag) {
62185bd0107SYu Wang ind_desc++;
62285bd0107SYu Wang paddr = __le64_to_cpu(ind_desc->msdu_paddr);
62385bd0107SYu Wang frag_buf = ath10k_htt_rx_pop_paddr(htt, paddr);
62485bd0107SYu Wang if (!frag_buf) {
62585bd0107SYu Wang ath10k_warn(ar, "failed to pop frag-n paddr: 0x%llx",
62685bd0107SYu Wang paddr);
62785bd0107SYu Wang prev_frag_buf->next = NULL;
62885bd0107SYu Wang return -ENOENT;
62985bd0107SYu Wang }
63085bd0107SYu Wang
63185bd0107SYu Wang skb_put(frag_buf, min(amsdu_len, HTT_RX_BUF_SIZE));
63285bd0107SYu Wang last_frag = ind_desc->reserved;
63385bd0107SYu Wang amsdu_len -= frag_buf->len;
63485bd0107SYu Wang
63585bd0107SYu Wang prev_frag_buf->next = frag_buf;
63685bd0107SYu Wang prev_frag_buf = frag_buf;
63785bd0107SYu Wang }
63885bd0107SYu Wang
63985bd0107SYu Wang if (amsdu_len) {
64085bd0107SYu Wang ath10k_warn(ar, "invalid amsdu len %u, left %d",
64185bd0107SYu Wang __le16_to_cpu(ind_desc->msdu_len), amsdu_len);
64285bd0107SYu Wang }
64385bd0107SYu Wang
64485bd0107SYu Wang *msdu_desc = ind_desc;
64585bd0107SYu Wang
64685bd0107SYu Wang prev_frag_buf->next = NULL;
64785bd0107SYu Wang return 0;
64885bd0107SYu Wang }
64985bd0107SYu Wang
ath10k_htt_rx_pop_paddr32_list(struct ath10k_htt * htt,struct htt_rx_in_ord_ind * ev,struct sk_buff_head * list)6503b0b55b1SGovind Singh static int ath10k_htt_rx_pop_paddr32_list(struct ath10k_htt *htt,
651c545070eSMichal Kazior struct htt_rx_in_ord_ind *ev,
652c545070eSMichal Kazior struct sk_buff_head *list)
653c545070eSMichal Kazior {
654c545070eSMichal Kazior struct ath10k *ar = htt->ar;
6556bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
6563b0b55b1SGovind Singh struct htt_rx_in_ord_msdu_desc *msdu_desc = ev->msdu_descs32;
657c545070eSMichal Kazior struct htt_rx_desc *rxd;
6586bae9de6SFrancesco Magliocca struct rx_attention *rxd_attention;
659c545070eSMichal Kazior struct sk_buff *msdu;
66085bd0107SYu Wang int msdu_count, ret;
661c545070eSMichal Kazior bool is_offload;
662c545070eSMichal Kazior u32 paddr;
663c545070eSMichal Kazior
664c545070eSMichal Kazior lockdep_assert_held(&htt->rx_ring.lock);
665c545070eSMichal Kazior
666c545070eSMichal Kazior msdu_count = __le16_to_cpu(ev->msdu_count);
667c545070eSMichal Kazior is_offload = !!(ev->info & HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK);
668c545070eSMichal Kazior
669c545070eSMichal Kazior while (msdu_count--) {
670c545070eSMichal Kazior paddr = __le32_to_cpu(msdu_desc->msdu_paddr);
671c545070eSMichal Kazior
672c545070eSMichal Kazior msdu = ath10k_htt_rx_pop_paddr(htt, paddr);
673c545070eSMichal Kazior if (!msdu) {
674c545070eSMichal Kazior __skb_queue_purge(list);
675c545070eSMichal Kazior return -ENOENT;
676c545070eSMichal Kazior }
677c545070eSMichal Kazior
67885bd0107SYu Wang if (!is_offload && ar->monitor_arvif) {
67985bd0107SYu Wang ret = ath10k_htt_rx_handle_amsdu_mon_32(htt, msdu,
68085bd0107SYu Wang &msdu_desc);
68185bd0107SYu Wang if (ret) {
68285bd0107SYu Wang __skb_queue_purge(list);
68385bd0107SYu Wang return ret;
68485bd0107SYu Wang }
68585bd0107SYu Wang __skb_queue_tail(list, msdu);
68685bd0107SYu Wang msdu_desc++;
68785bd0107SYu Wang continue;
68885bd0107SYu Wang }
68985bd0107SYu Wang
690c545070eSMichal Kazior __skb_queue_tail(list, msdu);
691c545070eSMichal Kazior
692c545070eSMichal Kazior if (!is_offload) {
6936bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw, msdu->data);
6946bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
695c545070eSMichal Kazior
6966bae9de6SFrancesco Magliocca trace_ath10k_htt_rx_desc(ar, rxd, hw->rx_desc_ops->rx_desc_size);
697c545070eSMichal Kazior
6986bae9de6SFrancesco Magliocca skb_put(msdu, hw->rx_desc_ops->rx_desc_size);
6996bae9de6SFrancesco Magliocca skb_pull(msdu, hw->rx_desc_ops->rx_desc_size);
700c545070eSMichal Kazior skb_put(msdu, __le16_to_cpu(msdu_desc->msdu_len));
701c545070eSMichal Kazior
7026bae9de6SFrancesco Magliocca if (!(__le32_to_cpu(rxd_attention->flags) &
703c545070eSMichal Kazior RX_ATTENTION_FLAGS_MSDU_DONE)) {
704c545070eSMichal Kazior ath10k_warn(htt->ar, "tried to pop an incomplete frame, oops!\n");
705c545070eSMichal Kazior return -EIO;
706c545070eSMichal Kazior }
707c545070eSMichal Kazior }
708c545070eSMichal Kazior
709c545070eSMichal Kazior msdu_desc++;
710c545070eSMichal Kazior }
711c545070eSMichal Kazior
712c545070eSMichal Kazior return 0;
713c545070eSMichal Kazior }
714c545070eSMichal Kazior
ath10k_htt_rx_pop_paddr64_list(struct ath10k_htt * htt,struct htt_rx_in_ord_ind * ev,struct sk_buff_head * list)7153b0b55b1SGovind Singh static int ath10k_htt_rx_pop_paddr64_list(struct ath10k_htt *htt,
7163b0b55b1SGovind Singh struct htt_rx_in_ord_ind *ev,
7173b0b55b1SGovind Singh struct sk_buff_head *list)
7183b0b55b1SGovind Singh {
7193b0b55b1SGovind Singh struct ath10k *ar = htt->ar;
7206bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
7213b0b55b1SGovind Singh struct htt_rx_in_ord_msdu_desc_ext *msdu_desc = ev->msdu_descs64;
7223b0b55b1SGovind Singh struct htt_rx_desc *rxd;
7236bae9de6SFrancesco Magliocca struct rx_attention *rxd_attention;
7243b0b55b1SGovind Singh struct sk_buff *msdu;
72585bd0107SYu Wang int msdu_count, ret;
7263b0b55b1SGovind Singh bool is_offload;
7273b0b55b1SGovind Singh u64 paddr;
7283b0b55b1SGovind Singh
7293b0b55b1SGovind Singh lockdep_assert_held(&htt->rx_ring.lock);
7303b0b55b1SGovind Singh
7313b0b55b1SGovind Singh msdu_count = __le16_to_cpu(ev->msdu_count);
7323b0b55b1SGovind Singh is_offload = !!(ev->info & HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK);
7333b0b55b1SGovind Singh
7343b0b55b1SGovind Singh while (msdu_count--) {
7353b0b55b1SGovind Singh paddr = __le64_to_cpu(msdu_desc->msdu_paddr);
7363b0b55b1SGovind Singh msdu = ath10k_htt_rx_pop_paddr(htt, paddr);
7373b0b55b1SGovind Singh if (!msdu) {
7383b0b55b1SGovind Singh __skb_queue_purge(list);
7393b0b55b1SGovind Singh return -ENOENT;
7403b0b55b1SGovind Singh }
7413b0b55b1SGovind Singh
74285bd0107SYu Wang if (!is_offload && ar->monitor_arvif) {
74385bd0107SYu Wang ret = ath10k_htt_rx_handle_amsdu_mon_64(htt, msdu,
74485bd0107SYu Wang &msdu_desc);
74585bd0107SYu Wang if (ret) {
74685bd0107SYu Wang __skb_queue_purge(list);
74785bd0107SYu Wang return ret;
74885bd0107SYu Wang }
74985bd0107SYu Wang __skb_queue_tail(list, msdu);
75085bd0107SYu Wang msdu_desc++;
75185bd0107SYu Wang continue;
75285bd0107SYu Wang }
75385bd0107SYu Wang
7543b0b55b1SGovind Singh __skb_queue_tail(list, msdu);
7553b0b55b1SGovind Singh
7563b0b55b1SGovind Singh if (!is_offload) {
7576bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw, msdu->data);
7586bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
7593b0b55b1SGovind Singh
7606bae9de6SFrancesco Magliocca trace_ath10k_htt_rx_desc(ar, rxd, hw->rx_desc_ops->rx_desc_size);
7613b0b55b1SGovind Singh
7626bae9de6SFrancesco Magliocca skb_put(msdu, hw->rx_desc_ops->rx_desc_size);
7636bae9de6SFrancesco Magliocca skb_pull(msdu, hw->rx_desc_ops->rx_desc_size);
7643b0b55b1SGovind Singh skb_put(msdu, __le16_to_cpu(msdu_desc->msdu_len));
7653b0b55b1SGovind Singh
7666bae9de6SFrancesco Magliocca if (!(__le32_to_cpu(rxd_attention->flags) &
7673b0b55b1SGovind Singh RX_ATTENTION_FLAGS_MSDU_DONE)) {
7683b0b55b1SGovind Singh ath10k_warn(htt->ar, "tried to pop an incomplete frame, oops!\n");
7693b0b55b1SGovind Singh return -EIO;
7703b0b55b1SGovind Singh }
7713b0b55b1SGovind Singh }
7723b0b55b1SGovind Singh
7733b0b55b1SGovind Singh msdu_desc++;
7743b0b55b1SGovind Singh }
7753b0b55b1SGovind Singh
7763b0b55b1SGovind Singh return 0;
7773b0b55b1SGovind Singh }
7783b0b55b1SGovind Singh
ath10k_htt_rx_alloc(struct ath10k_htt * htt)77995bf21f9SMichal Kazior int ath10k_htt_rx_alloc(struct ath10k_htt *htt)
7805e3dd157SKalle Valo {
7817aa7a72aSMichal Kazior struct ath10k *ar = htt->ar;
7825e3dd157SKalle Valo dma_addr_t paddr;
783a91a626bSGovind Singh void *vaddr, *vaddr_ring;
784bd8bdbb6SKalle Valo size_t size;
7855e3dd157SKalle Valo struct timer_list *timer = &htt->rx_ring.refill_retry_timer;
7865e3dd157SKalle Valo
787de8781d7SGovind Singh if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
788f88d4934SErik Stromdahl return 0;
789f88d4934SErik Stromdahl
79051fc7d74SMichal Kazior htt->rx_confused = false;
79151fc7d74SMichal Kazior
792fe2407a8SMichal Kazior /* XXX: The fill level could be changed during runtime in response to
793fe2407a8SMichal Kazior * the host processing latency. Is this really worth it?
794fe2407a8SMichal Kazior */
795fe2407a8SMichal Kazior htt->rx_ring.size = HTT_RX_RING_SIZE;
796fe2407a8SMichal Kazior htt->rx_ring.size_mask = htt->rx_ring.size - 1;
797bb8d0d15SGovind Singh htt->rx_ring.fill_level = ar->hw_params.rx_ring_fill_level;
798fe2407a8SMichal Kazior
7995e3dd157SKalle Valo if (!is_power_of_2(htt->rx_ring.size)) {
8007aa7a72aSMichal Kazior ath10k_warn(ar, "htt rx ring size is not power of 2\n");
8015e3dd157SKalle Valo return -EINVAL;
8025e3dd157SKalle Valo }
8035e3dd157SKalle Valo
8045e3dd157SKalle Valo htt->rx_ring.netbufs_ring =
8056396bb22SKees Cook kcalloc(htt->rx_ring.size, sizeof(struct sk_buff *),
8065e3dd157SKalle Valo GFP_KERNEL);
8075e3dd157SKalle Valo if (!htt->rx_ring.netbufs_ring)
8085e3dd157SKalle Valo goto err_netbuf;
8095e3dd157SKalle Valo
8109a5511d5SErik Stromdahl size = ath10k_htt_get_rx_ring_size(htt);
811bd8bdbb6SKalle Valo
812a91a626bSGovind Singh vaddr_ring = dma_alloc_coherent(htt->ar->dev, size, &paddr, GFP_KERNEL);
813a91a626bSGovind Singh if (!vaddr_ring)
8145e3dd157SKalle Valo goto err_dma_ring;
8155e3dd157SKalle Valo
8169a5511d5SErik Stromdahl ath10k_htt_config_paddrs_ring(htt, vaddr_ring);
8175e3dd157SKalle Valo htt->rx_ring.base_paddr = paddr;
8185e3dd157SKalle Valo
8195e3dd157SKalle Valo vaddr = dma_alloc_coherent(htt->ar->dev,
8205e3dd157SKalle Valo sizeof(*htt->rx_ring.alloc_idx.vaddr),
821d6cb23b5SFelix Fietkau &paddr, GFP_KERNEL);
8225e3dd157SKalle Valo if (!vaddr)
8235e3dd157SKalle Valo goto err_dma_idx;
8245e3dd157SKalle Valo
8255e3dd157SKalle Valo htt->rx_ring.alloc_idx.vaddr = vaddr;
8265e3dd157SKalle Valo htt->rx_ring.alloc_idx.paddr = paddr;
827c545070eSMichal Kazior htt->rx_ring.sw_rd_idx.msdu_payld = htt->rx_ring.size_mask;
8285e3dd157SKalle Valo *htt->rx_ring.alloc_idx.vaddr = 0;
8295e3dd157SKalle Valo
8305e3dd157SKalle Valo /* Initialize the Rx refill retry timer */
8317ac76764SKees Cook timer_setup(timer, ath10k_htt_rx_ring_refill_retry, 0);
8325e3dd157SKalle Valo
8335e3dd157SKalle Valo spin_lock_init(&htt->rx_ring.lock);
8345e3dd157SKalle Valo
8355e3dd157SKalle Valo htt->rx_ring.fill_cnt = 0;
836c545070eSMichal Kazior htt->rx_ring.sw_rd_idx.msdu_payld = 0;
837c545070eSMichal Kazior hash_init(htt->rx_ring.skb_table);
8385e3dd157SKalle Valo
839deba1b9eSRajkumar Manoharan skb_queue_head_init(&htt->rx_msdus_q);
840c545070eSMichal Kazior skb_queue_head_init(&htt->rx_in_ord_compl_q);
841426e10eaSMichal Kazior skb_queue_head_init(&htt->tx_fetch_ind_q);
8423128b3d8SRajkumar Manoharan atomic_set(&htt->num_mpdus_ready, 0);
8436c5151a9SMichal Kazior
8447aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt rx ring size %d fill_level %d\n",
8455e3dd157SKalle Valo htt->rx_ring.size, htt->rx_ring.fill_level);
8465e3dd157SKalle Valo return 0;
8475e3dd157SKalle Valo
8485e3dd157SKalle Valo err_dma_idx:
8495e3dd157SKalle Valo dma_free_coherent(htt->ar->dev,
8509a5511d5SErik Stromdahl ath10k_htt_get_rx_ring_size(htt),
851a91a626bSGovind Singh vaddr_ring,
8525e3dd157SKalle Valo htt->rx_ring.base_paddr);
8531e1cb8e0SWen Gong ath10k_htt_config_paddrs_ring(htt, NULL);
8545e3dd157SKalle Valo err_dma_ring:
8555e3dd157SKalle Valo kfree(htt->rx_ring.netbufs_ring);
8561e1cb8e0SWen Gong htt->rx_ring.netbufs_ring = NULL;
8575e3dd157SKalle Valo err_netbuf:
8585e3dd157SKalle Valo return -ENOMEM;
8595e3dd157SKalle Valo }
8605e3dd157SKalle Valo
ath10k_htt_rx_crypto_param_len(struct ath10k * ar,enum htt_rx_mpdu_encrypt_type type)8617aa7a72aSMichal Kazior static int ath10k_htt_rx_crypto_param_len(struct ath10k *ar,
8627aa7a72aSMichal Kazior enum htt_rx_mpdu_encrypt_type type)
8635e3dd157SKalle Valo {
8645e3dd157SKalle Valo switch (type) {
865890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_NONE:
866890d3b2aSMichal Kazior return 0;
8675e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP40:
8685e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP104:
869890d3b2aSMichal Kazior return IEEE80211_WEP_IV_LEN;
8705e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC:
8715e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WPA:
872890d3b2aSMichal Kazior return IEEE80211_TKIP_IV_LEN;
8735e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
874890d3b2aSMichal Kazior return IEEE80211_CCMP_HDR_LEN;
8757eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2:
8767eccb738SVasanthakumar Thiagarajan return IEEE80211_CCMP_256_HDR_LEN;
8777eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2:
8787eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2:
8797eccb738SVasanthakumar Thiagarajan return IEEE80211_GCMP_HDR_LEN;
880890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WEP128:
881890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WAPI:
882890d3b2aSMichal Kazior break;
883890d3b2aSMichal Kazior }
884890d3b2aSMichal Kazior
885890d3b2aSMichal Kazior ath10k_warn(ar, "unsupported encryption type %d\n", type);
8865e3dd157SKalle Valo return 0;
8875e3dd157SKalle Valo }
8885e3dd157SKalle Valo
889890d3b2aSMichal Kazior #define MICHAEL_MIC_LEN 8
8905e3dd157SKalle Valo
ath10k_htt_rx_crypto_mic_len(struct ath10k * ar,enum htt_rx_mpdu_encrypt_type type)891307aeb31SVasanthakumar Thiagarajan static int ath10k_htt_rx_crypto_mic_len(struct ath10k *ar,
8927aa7a72aSMichal Kazior enum htt_rx_mpdu_encrypt_type type)
8935e3dd157SKalle Valo {
8945e3dd157SKalle Valo switch (type) {
8955e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_NONE:
8965e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP40:
8975e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_WEP104:
8985e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC:
8995e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_TKIP_WPA:
900307aeb31SVasanthakumar Thiagarajan return 0;
9015e3dd157SKalle Valo case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
902890d3b2aSMichal Kazior return IEEE80211_CCMP_MIC_LEN;
9037eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2:
9047eccb738SVasanthakumar Thiagarajan return IEEE80211_CCMP_256_MIC_LEN;
9057eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2:
9067eccb738SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2:
9077eccb738SVasanthakumar Thiagarajan return IEEE80211_GCMP_MIC_LEN;
908890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WEP128:
909890d3b2aSMichal Kazior case HTT_RX_MPDU_ENCRYPT_WAPI:
910890d3b2aSMichal Kazior break;
9115e3dd157SKalle Valo }
9125e3dd157SKalle Valo
913890d3b2aSMichal Kazior ath10k_warn(ar, "unsupported encryption type %d\n", type);
9145e3dd157SKalle Valo return 0;
9155e3dd157SKalle Valo }
9165e3dd157SKalle Valo
ath10k_htt_rx_crypto_icv_len(struct ath10k * ar,enum htt_rx_mpdu_encrypt_type type)917307aeb31SVasanthakumar Thiagarajan static int ath10k_htt_rx_crypto_icv_len(struct ath10k *ar,
918307aeb31SVasanthakumar Thiagarajan enum htt_rx_mpdu_encrypt_type type)
919307aeb31SVasanthakumar Thiagarajan {
920307aeb31SVasanthakumar Thiagarajan switch (type) {
921307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_NONE:
922307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
923307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2:
924307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2:
925307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2:
926307aeb31SVasanthakumar Thiagarajan return 0;
927307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WEP40:
928307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WEP104:
929307aeb31SVasanthakumar Thiagarajan return IEEE80211_WEP_ICV_LEN;
930307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC:
931307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_TKIP_WPA:
932307aeb31SVasanthakumar Thiagarajan return IEEE80211_TKIP_ICV_LEN;
933307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WEP128:
934307aeb31SVasanthakumar Thiagarajan case HTT_RX_MPDU_ENCRYPT_WAPI:
935307aeb31SVasanthakumar Thiagarajan break;
936307aeb31SVasanthakumar Thiagarajan }
937307aeb31SVasanthakumar Thiagarajan
938307aeb31SVasanthakumar Thiagarajan ath10k_warn(ar, "unsupported encryption type %d\n", type);
939307aeb31SVasanthakumar Thiagarajan return 0;
940307aeb31SVasanthakumar Thiagarajan }
941307aeb31SVasanthakumar Thiagarajan
942f6dc2095SMichal Kazior struct amsdu_subframe_hdr {
943f6dc2095SMichal Kazior u8 dst[ETH_ALEN];
944f6dc2095SMichal Kazior u8 src[ETH_ALEN];
945f6dc2095SMichal Kazior __be16 len;
946f6dc2095SMichal Kazior } __packed;
947f6dc2095SMichal Kazior
9486986fdd6SMichal Kazior #define GROUP_ID_IS_SU_MIMO(x) ((x) == 0 || (x) == 63)
9496986fdd6SMichal Kazior
ath10k_bw_to_mac80211_bw(u8 bw)95091493e8eSChristian Lamparter static inline u8 ath10k_bw_to_mac80211_bw(u8 bw)
95191493e8eSChristian Lamparter {
95291493e8eSChristian Lamparter u8 ret = 0;
95391493e8eSChristian Lamparter
95491493e8eSChristian Lamparter switch (bw) {
95591493e8eSChristian Lamparter case 0:
95691493e8eSChristian Lamparter ret = RATE_INFO_BW_20;
95791493e8eSChristian Lamparter break;
95891493e8eSChristian Lamparter case 1:
95991493e8eSChristian Lamparter ret = RATE_INFO_BW_40;
96091493e8eSChristian Lamparter break;
96191493e8eSChristian Lamparter case 2:
96291493e8eSChristian Lamparter ret = RATE_INFO_BW_80;
96391493e8eSChristian Lamparter break;
96491493e8eSChristian Lamparter case 3:
96591493e8eSChristian Lamparter ret = RATE_INFO_BW_160;
96691493e8eSChristian Lamparter break;
96791493e8eSChristian Lamparter }
96891493e8eSChristian Lamparter
96991493e8eSChristian Lamparter return ret;
97091493e8eSChristian Lamparter }
97191493e8eSChristian Lamparter
ath10k_htt_rx_h_rates(struct ath10k * ar,struct ieee80211_rx_status * status,struct htt_rx_desc * rxd)97287326c97SJanusz Dziedzic static void ath10k_htt_rx_h_rates(struct ath10k *ar,
973b9fd8a84SMichal Kazior struct ieee80211_rx_status *status,
974b9fd8a84SMichal Kazior struct htt_rx_desc *rxd)
97573539b40SJanusz Dziedzic {
9766bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
9776bae9de6SFrancesco Magliocca struct rx_attention *rxd_attention;
9786bae9de6SFrancesco Magliocca struct rx_mpdu_start *rxd_mpdu_start;
9796bae9de6SFrancesco Magliocca struct rx_mpdu_end *rxd_mpdu_end;
9806bae9de6SFrancesco Magliocca struct rx_msdu_start_common *rxd_msdu_start_common;
9816bae9de6SFrancesco Magliocca struct rx_msdu_end_common *rxd_msdu_end_common;
9826bae9de6SFrancesco Magliocca struct rx_ppdu_start *rxd_ppdu_start;
9835528e032SMichal Kazior struct ieee80211_supported_band *sband;
9845528e032SMichal Kazior u8 cck, rate, bw, sgi, mcs, nss;
9856bae9de6SFrancesco Magliocca u8 *rxd_msdu_payload;
98673539b40SJanusz Dziedzic u8 preamble = 0;
9876986fdd6SMichal Kazior u8 group_id;
988b9fd8a84SMichal Kazior u32 info1, info2, info3;
98999f41b8eSSathishkumar Muruganandam u32 stbc, nsts_su;
99073539b40SJanusz Dziedzic
9916bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
9926bae9de6SFrancesco Magliocca rxd_mpdu_start = ath10k_htt_rx_desc_get_mpdu_start(hw, rxd);
9936bae9de6SFrancesco Magliocca rxd_mpdu_end = ath10k_htt_rx_desc_get_mpdu_end(hw, rxd);
9946bae9de6SFrancesco Magliocca rxd_msdu_start_common = ath10k_htt_rx_desc_get_msdu_start(hw, rxd);
9956bae9de6SFrancesco Magliocca rxd_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rxd);
9966bae9de6SFrancesco Magliocca rxd_ppdu_start = ath10k_htt_rx_desc_get_ppdu_start(hw, rxd);
9976bae9de6SFrancesco Magliocca rxd_msdu_payload = ath10k_htt_rx_desc_get_msdu_payload(hw, rxd);
9986bae9de6SFrancesco Magliocca
9996bae9de6SFrancesco Magliocca info1 = __le32_to_cpu(rxd_ppdu_start->info1);
10006bae9de6SFrancesco Magliocca info2 = __le32_to_cpu(rxd_ppdu_start->info2);
10016bae9de6SFrancesco Magliocca info3 = __le32_to_cpu(rxd_ppdu_start->info3);
1002b9fd8a84SMichal Kazior
1003b9fd8a84SMichal Kazior preamble = MS(info1, RX_PPDU_START_INFO1_PREAMBLE_TYPE);
100473539b40SJanusz Dziedzic
100573539b40SJanusz Dziedzic switch (preamble) {
100673539b40SJanusz Dziedzic case HTT_RX_LEGACY:
10075528e032SMichal Kazior /* To get legacy rate index band is required. Since band can't
10085528e032SMichal Kazior * be undefined check if freq is non-zero.
10095528e032SMichal Kazior */
10105528e032SMichal Kazior if (!status->freq)
10115528e032SMichal Kazior return;
10125528e032SMichal Kazior
1013b9fd8a84SMichal Kazior cck = info1 & RX_PPDU_START_INFO1_L_SIG_RATE_SELECT;
1014b9fd8a84SMichal Kazior rate = MS(info1, RX_PPDU_START_INFO1_L_SIG_RATE);
10155528e032SMichal Kazior rate &= ~RX_PPDU_START_RATE_FLAG;
101673539b40SJanusz Dziedzic
10175528e032SMichal Kazior sband = &ar->mac.sbands[status->band];
10184b7f353bSYanbo Li status->rate_idx = ath10k_mac_hw_rate_to_idx(sband, rate, cck);
101973539b40SJanusz Dziedzic break;
102073539b40SJanusz Dziedzic case HTT_RX_HT:
102173539b40SJanusz Dziedzic case HTT_RX_HT_WITH_TXBF:
1022b9fd8a84SMichal Kazior /* HT-SIG - Table 20-11 in info2 and info3 */
1023b9fd8a84SMichal Kazior mcs = info2 & 0x1F;
102473539b40SJanusz Dziedzic nss = mcs >> 3;
1025b9fd8a84SMichal Kazior bw = (info2 >> 7) & 1;
1026b9fd8a84SMichal Kazior sgi = (info3 >> 7) & 1;
102773539b40SJanusz Dziedzic
102873539b40SJanusz Dziedzic status->rate_idx = mcs;
1029da6a4352SJohannes Berg status->encoding = RX_ENC_HT;
103073539b40SJanusz Dziedzic if (sgi)
10317fdd69c5SJohannes Berg status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
103273539b40SJanusz Dziedzic if (bw)
1033da6a4352SJohannes Berg status->bw = RATE_INFO_BW_40;
103473539b40SJanusz Dziedzic break;
103573539b40SJanusz Dziedzic case HTT_RX_VHT:
103673539b40SJanusz Dziedzic case HTT_RX_VHT_WITH_TXBF:
1037b9fd8a84SMichal Kazior /* VHT-SIG-A1 in info2, VHT-SIG-A2 in info3
1038d6dfe25cSMarcin Rokicki * TODO check this
1039d6dfe25cSMarcin Rokicki */
1040b9fd8a84SMichal Kazior bw = info2 & 3;
1041b9fd8a84SMichal Kazior sgi = info3 & 1;
104299f41b8eSSathishkumar Muruganandam stbc = (info2 >> 3) & 1;
10436986fdd6SMichal Kazior group_id = (info2 >> 4) & 0x3F;
10446986fdd6SMichal Kazior
10456986fdd6SMichal Kazior if (GROUP_ID_IS_SU_MIMO(group_id)) {
10466986fdd6SMichal Kazior mcs = (info3 >> 4) & 0x0F;
104799f41b8eSSathishkumar Muruganandam nsts_su = ((info2 >> 10) & 0x07);
104899f41b8eSSathishkumar Muruganandam if (stbc)
104999f41b8eSSathishkumar Muruganandam nss = (nsts_su >> 2) + 1;
105099f41b8eSSathishkumar Muruganandam else
105199f41b8eSSathishkumar Muruganandam nss = (nsts_su + 1);
10526986fdd6SMichal Kazior } else {
10536986fdd6SMichal Kazior /* Hardware doesn't decode VHT-SIG-B into Rx descriptor
10546986fdd6SMichal Kazior * so it's impossible to decode MCS. Also since
10556986fdd6SMichal Kazior * firmware consumes Group Id Management frames host
10566986fdd6SMichal Kazior * has no knowledge regarding group/user position
10576986fdd6SMichal Kazior * mapping so it's impossible to pick the correct Nsts
10586986fdd6SMichal Kazior * from VHT-SIG-A1.
10596986fdd6SMichal Kazior *
10606986fdd6SMichal Kazior * Bandwidth and SGI are valid so report the rateinfo
10616986fdd6SMichal Kazior * on best-effort basis.
10626986fdd6SMichal Kazior */
10636986fdd6SMichal Kazior mcs = 0;
10646986fdd6SMichal Kazior nss = 1;
10656986fdd6SMichal Kazior }
106673539b40SJanusz Dziedzic
10676ccea107SManikanta Pubbisetty if (mcs > 0x09) {
10686ccea107SManikanta Pubbisetty ath10k_warn(ar, "invalid MCS received %u\n", mcs);
10696ccea107SManikanta Pubbisetty ath10k_warn(ar, "rxd %08x mpdu start %08x %08x msdu start %08x %08x ppdu start %08x %08x %08x %08x %08x\n",
10706bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_attention->flags),
10716bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_mpdu_start->info0),
10726bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_mpdu_start->info1),
10736bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_msdu_start_common->info0),
10746bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_msdu_start_common->info1),
10756bae9de6SFrancesco Magliocca rxd_ppdu_start->info0,
10766bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_ppdu_start->info1),
10776bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_ppdu_start->info2),
10786bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_ppdu_start->info3),
10796bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_ppdu_start->info4));
10806ccea107SManikanta Pubbisetty
10816ccea107SManikanta Pubbisetty ath10k_warn(ar, "msdu end %08x mpdu end %08x\n",
10826bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_msdu_end_common->info0),
10836bae9de6SFrancesco Magliocca __le32_to_cpu(rxd_mpdu_end->info0));
10846ccea107SManikanta Pubbisetty
10856ccea107SManikanta Pubbisetty ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL,
10866ccea107SManikanta Pubbisetty "rx desc msdu payload: ",
10876bae9de6SFrancesco Magliocca rxd_msdu_payload, 50);
10886ccea107SManikanta Pubbisetty }
10896ccea107SManikanta Pubbisetty
109073539b40SJanusz Dziedzic status->rate_idx = mcs;
10918613c948SJohannes Berg status->nss = nss;
109273539b40SJanusz Dziedzic
109373539b40SJanusz Dziedzic if (sgi)
10947fdd69c5SJohannes Berg status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
109573539b40SJanusz Dziedzic
109691493e8eSChristian Lamparter status->bw = ath10k_bw_to_mac80211_bw(bw);
1097da6a4352SJohannes Berg status->encoding = RX_ENC_VHT;
109873539b40SJanusz Dziedzic break;
109973539b40SJanusz Dziedzic default:
110073539b40SJanusz Dziedzic break;
110173539b40SJanusz Dziedzic }
110273539b40SJanusz Dziedzic }
110373539b40SJanusz Dziedzic
1104500ff9f9SMichal Kazior static struct ieee80211_channel *
ath10k_htt_rx_h_peer_channel(struct ath10k * ar,struct htt_rx_desc * rxd)1105500ff9f9SMichal Kazior ath10k_htt_rx_h_peer_channel(struct ath10k *ar, struct htt_rx_desc *rxd)
1106500ff9f9SMichal Kazior {
11076bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
11086bae9de6SFrancesco Magliocca struct rx_attention *rxd_attention;
11096bae9de6SFrancesco Magliocca struct rx_msdu_end_common *rxd_msdu_end_common;
11106bae9de6SFrancesco Magliocca struct rx_mpdu_start *rxd_mpdu_start;
1111500ff9f9SMichal Kazior struct ath10k_peer *peer;
1112500ff9f9SMichal Kazior struct ath10k_vif *arvif;
1113500ff9f9SMichal Kazior struct cfg80211_chan_def def;
1114500ff9f9SMichal Kazior u16 peer_id;
1115500ff9f9SMichal Kazior
1116500ff9f9SMichal Kazior lockdep_assert_held(&ar->data_lock);
1117500ff9f9SMichal Kazior
1118500ff9f9SMichal Kazior if (!rxd)
1119500ff9f9SMichal Kazior return NULL;
1120500ff9f9SMichal Kazior
11216bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
11226bae9de6SFrancesco Magliocca rxd_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rxd);
11236bae9de6SFrancesco Magliocca rxd_mpdu_start = ath10k_htt_rx_desc_get_mpdu_start(hw, rxd);
11246bae9de6SFrancesco Magliocca
11256bae9de6SFrancesco Magliocca if (rxd_attention->flags &
1126500ff9f9SMichal Kazior __cpu_to_le32(RX_ATTENTION_FLAGS_PEER_IDX_INVALID))
1127500ff9f9SMichal Kazior return NULL;
1128500ff9f9SMichal Kazior
11296bae9de6SFrancesco Magliocca if (!(rxd_msdu_end_common->info0 &
1130500ff9f9SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU)))
1131500ff9f9SMichal Kazior return NULL;
1132500ff9f9SMichal Kazior
11336bae9de6SFrancesco Magliocca peer_id = MS(__le32_to_cpu(rxd_mpdu_start->info0),
1134500ff9f9SMichal Kazior RX_MPDU_START_INFO0_PEER_IDX);
1135500ff9f9SMichal Kazior
1136500ff9f9SMichal Kazior peer = ath10k_peer_find_by_id(ar, peer_id);
1137500ff9f9SMichal Kazior if (!peer)
1138500ff9f9SMichal Kazior return NULL;
1139500ff9f9SMichal Kazior
1140500ff9f9SMichal Kazior arvif = ath10k_get_arvif(ar, peer->vdev_id);
1141500ff9f9SMichal Kazior if (WARN_ON_ONCE(!arvif))
1142500ff9f9SMichal Kazior return NULL;
1143500ff9f9SMichal Kazior
1144569fba2cSMohammed Shafi Shajakhan if (ath10k_mac_vif_chan(arvif->vif, &def))
1145500ff9f9SMichal Kazior return NULL;
1146500ff9f9SMichal Kazior
1147500ff9f9SMichal Kazior return def.chan;
1148500ff9f9SMichal Kazior }
1149500ff9f9SMichal Kazior
1150500ff9f9SMichal Kazior static struct ieee80211_channel *
ath10k_htt_rx_h_vdev_channel(struct ath10k * ar,u32 vdev_id)1151500ff9f9SMichal Kazior ath10k_htt_rx_h_vdev_channel(struct ath10k *ar, u32 vdev_id)
1152500ff9f9SMichal Kazior {
1153500ff9f9SMichal Kazior struct ath10k_vif *arvif;
1154500ff9f9SMichal Kazior struct cfg80211_chan_def def;
1155500ff9f9SMichal Kazior
1156500ff9f9SMichal Kazior lockdep_assert_held(&ar->data_lock);
1157500ff9f9SMichal Kazior
1158500ff9f9SMichal Kazior list_for_each_entry(arvif, &ar->arvifs, list) {
1159500ff9f9SMichal Kazior if (arvif->vdev_id == vdev_id &&
1160500ff9f9SMichal Kazior ath10k_mac_vif_chan(arvif->vif, &def) == 0)
1161500ff9f9SMichal Kazior return def.chan;
1162500ff9f9SMichal Kazior }
1163500ff9f9SMichal Kazior
1164500ff9f9SMichal Kazior return NULL;
1165500ff9f9SMichal Kazior }
1166500ff9f9SMichal Kazior
1167500ff9f9SMichal Kazior static void
ath10k_htt_rx_h_any_chan_iter(struct ieee80211_hw * hw,struct ieee80211_chanctx_conf * conf,void * data)1168500ff9f9SMichal Kazior ath10k_htt_rx_h_any_chan_iter(struct ieee80211_hw *hw,
1169500ff9f9SMichal Kazior struct ieee80211_chanctx_conf *conf,
1170500ff9f9SMichal Kazior void *data)
1171500ff9f9SMichal Kazior {
1172500ff9f9SMichal Kazior struct cfg80211_chan_def *def = data;
1173500ff9f9SMichal Kazior
1174500ff9f9SMichal Kazior *def = conf->def;
1175500ff9f9SMichal Kazior }
1176500ff9f9SMichal Kazior
1177500ff9f9SMichal Kazior static struct ieee80211_channel *
ath10k_htt_rx_h_any_channel(struct ath10k * ar)1178500ff9f9SMichal Kazior ath10k_htt_rx_h_any_channel(struct ath10k *ar)
1179500ff9f9SMichal Kazior {
1180500ff9f9SMichal Kazior struct cfg80211_chan_def def = {};
1181500ff9f9SMichal Kazior
1182500ff9f9SMichal Kazior ieee80211_iter_chan_contexts_atomic(ar->hw,
1183500ff9f9SMichal Kazior ath10k_htt_rx_h_any_chan_iter,
1184500ff9f9SMichal Kazior &def);
1185500ff9f9SMichal Kazior
1186500ff9f9SMichal Kazior return def.chan;
1187500ff9f9SMichal Kazior }
1188500ff9f9SMichal Kazior
ath10k_htt_rx_h_channel(struct ath10k * ar,struct ieee80211_rx_status * status,struct htt_rx_desc * rxd,u32 vdev_id)118936653f05SJanusz Dziedzic static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
1190500ff9f9SMichal Kazior struct ieee80211_rx_status *status,
1191500ff9f9SMichal Kazior struct htt_rx_desc *rxd,
1192500ff9f9SMichal Kazior u32 vdev_id)
119336653f05SJanusz Dziedzic {
119436653f05SJanusz Dziedzic struct ieee80211_channel *ch;
119536653f05SJanusz Dziedzic
119636653f05SJanusz Dziedzic spin_lock_bh(&ar->data_lock);
119736653f05SJanusz Dziedzic ch = ar->scan_channel;
119836653f05SJanusz Dziedzic if (!ch)
119936653f05SJanusz Dziedzic ch = ar->rx_channel;
1200500ff9f9SMichal Kazior if (!ch)
1201500ff9f9SMichal Kazior ch = ath10k_htt_rx_h_peer_channel(ar, rxd);
1202500ff9f9SMichal Kazior if (!ch)
1203500ff9f9SMichal Kazior ch = ath10k_htt_rx_h_vdev_channel(ar, vdev_id);
1204500ff9f9SMichal Kazior if (!ch)
1205500ff9f9SMichal Kazior ch = ath10k_htt_rx_h_any_channel(ar);
12062ce9b25cSRajkumar Manoharan if (!ch)
12072ce9b25cSRajkumar Manoharan ch = ar->tgt_oper_chan;
120836653f05SJanusz Dziedzic spin_unlock_bh(&ar->data_lock);
120936653f05SJanusz Dziedzic
121036653f05SJanusz Dziedzic if (!ch)
121136653f05SJanusz Dziedzic return false;
121236653f05SJanusz Dziedzic
121336653f05SJanusz Dziedzic status->band = ch->band;
121436653f05SJanusz Dziedzic status->freq = ch->center_freq;
121536653f05SJanusz Dziedzic
121636653f05SJanusz Dziedzic return true;
121736653f05SJanusz Dziedzic }
121836653f05SJanusz Dziedzic
ath10k_htt_rx_h_signal(struct ath10k * ar,struct ieee80211_rx_status * status,struct htt_rx_desc * rxd)1219b9fd8a84SMichal Kazior static void ath10k_htt_rx_h_signal(struct ath10k *ar,
1220b9fd8a84SMichal Kazior struct ieee80211_rx_status *status,
1221b9fd8a84SMichal Kazior struct htt_rx_desc *rxd)
1222b9fd8a84SMichal Kazior {
12236bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
12246bae9de6SFrancesco Magliocca struct rx_ppdu_start *rxd_ppdu_start = ath10k_htt_rx_desc_get_ppdu_start(hw, rxd);
12258241253dSNorik Dzhandzhapanyan int i;
12268241253dSNorik Dzhandzhapanyan
12278241253dSNorik Dzhandzhapanyan for (i = 0; i < IEEE80211_MAX_CHAINS ; i++) {
12288241253dSNorik Dzhandzhapanyan status->chains &= ~BIT(i);
12298241253dSNorik Dzhandzhapanyan
12306bae9de6SFrancesco Magliocca if (rxd_ppdu_start->rssi_chains[i].pri20_mhz != 0x80) {
12318241253dSNorik Dzhandzhapanyan status->chain_signal[i] = ATH10K_DEFAULT_NOISE_FLOOR +
12326bae9de6SFrancesco Magliocca rxd_ppdu_start->rssi_chains[i].pri20_mhz;
12338241253dSNorik Dzhandzhapanyan
12348241253dSNorik Dzhandzhapanyan status->chains |= BIT(i);
12358241253dSNorik Dzhandzhapanyan }
12368241253dSNorik Dzhandzhapanyan }
12378241253dSNorik Dzhandzhapanyan
1238b9fd8a84SMichal Kazior /* FIXME: Get real NF */
1239b9fd8a84SMichal Kazior status->signal = ATH10K_DEFAULT_NOISE_FLOOR +
12406bae9de6SFrancesco Magliocca rxd_ppdu_start->rssi_comb;
1241b9fd8a84SMichal Kazior status->flag &= ~RX_FLAG_NO_SIGNAL_VAL;
1242b9fd8a84SMichal Kazior }
1243b9fd8a84SMichal Kazior
ath10k_htt_rx_h_mactime(struct ath10k * ar,struct ieee80211_rx_status * status,struct htt_rx_desc * rxd)1244b9fd8a84SMichal Kazior static void ath10k_htt_rx_h_mactime(struct ath10k *ar,
1245b9fd8a84SMichal Kazior struct ieee80211_rx_status *status,
1246b9fd8a84SMichal Kazior struct htt_rx_desc *rxd)
1247b9fd8a84SMichal Kazior {
12486bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
12496bae9de6SFrancesco Magliocca struct rx_ppdu_end_common *rxd_ppdu_end_common;
12506bae9de6SFrancesco Magliocca
12516bae9de6SFrancesco Magliocca rxd_ppdu_end_common = ath10k_htt_rx_desc_get_ppdu_end(hw, rxd);
12526bae9de6SFrancesco Magliocca
1253b9fd8a84SMichal Kazior /* FIXME: TSF is known only at the end of PPDU, in the last MPDU. This
1254b9fd8a84SMichal Kazior * means all prior MSDUs in a PPDU are reported to mac80211 without the
1255b9fd8a84SMichal Kazior * TSF. Is it worth holding frames until end of PPDU is known?
1256b9fd8a84SMichal Kazior *
1257b9fd8a84SMichal Kazior * FIXME: Can we get/compute 64bit TSF?
1258b9fd8a84SMichal Kazior */
12596bae9de6SFrancesco Magliocca status->mactime = __le32_to_cpu(rxd_ppdu_end_common->tsf_timestamp);
1260b9fd8a84SMichal Kazior status->flag |= RX_FLAG_MACTIME_END;
1261b9fd8a84SMichal Kazior }
1262b9fd8a84SMichal Kazior
ath10k_htt_rx_h_ppdu(struct ath10k * ar,struct sk_buff_head * amsdu,struct ieee80211_rx_status * status,u32 vdev_id)1263b9fd8a84SMichal Kazior static void ath10k_htt_rx_h_ppdu(struct ath10k *ar,
1264b9fd8a84SMichal Kazior struct sk_buff_head *amsdu,
1265500ff9f9SMichal Kazior struct ieee80211_rx_status *status,
1266500ff9f9SMichal Kazior u32 vdev_id)
1267b9fd8a84SMichal Kazior {
1268b9fd8a84SMichal Kazior struct sk_buff *first;
12696bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1270b9fd8a84SMichal Kazior struct htt_rx_desc *rxd;
12716bae9de6SFrancesco Magliocca struct rx_attention *rxd_attention;
1272b9fd8a84SMichal Kazior bool is_first_ppdu;
1273b9fd8a84SMichal Kazior bool is_last_ppdu;
1274b9fd8a84SMichal Kazior
1275b9fd8a84SMichal Kazior if (skb_queue_empty(amsdu))
1276b9fd8a84SMichal Kazior return;
1277b9fd8a84SMichal Kazior
1278b9fd8a84SMichal Kazior first = skb_peek(amsdu);
12796bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
12806bae9de6SFrancesco Magliocca (void *)first->data - hw->rx_desc_ops->rx_desc_size);
1281b9fd8a84SMichal Kazior
12826bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
12836bae9de6SFrancesco Magliocca
12846bae9de6SFrancesco Magliocca is_first_ppdu = !!(rxd_attention->flags &
1285b9fd8a84SMichal Kazior __cpu_to_le32(RX_ATTENTION_FLAGS_FIRST_MPDU));
12866bae9de6SFrancesco Magliocca is_last_ppdu = !!(rxd_attention->flags &
1287b9fd8a84SMichal Kazior __cpu_to_le32(RX_ATTENTION_FLAGS_LAST_MPDU));
1288b9fd8a84SMichal Kazior
1289b9fd8a84SMichal Kazior if (is_first_ppdu) {
1290b9fd8a84SMichal Kazior /* New PPDU starts so clear out the old per-PPDU status. */
1291b9fd8a84SMichal Kazior status->freq = 0;
1292b9fd8a84SMichal Kazior status->rate_idx = 0;
12938613c948SJohannes Berg status->nss = 0;
1294da6a4352SJohannes Berg status->encoding = RX_ENC_LEGACY;
1295da6a4352SJohannes Berg status->bw = RATE_INFO_BW_20;
129647cc0ca9SMatthias Frei
12977fdd69c5SJohannes Berg status->flag &= ~RX_FLAG_MACTIME_END;
1298b9fd8a84SMichal Kazior status->flag |= RX_FLAG_NO_SIGNAL_VAL;
1299b9fd8a84SMichal Kazior
130047cc0ca9SMatthias Frei status->flag &= ~(RX_FLAG_AMPDU_IS_LAST);
130147cc0ca9SMatthias Frei status->flag |= RX_FLAG_AMPDU_DETAILS | RX_FLAG_AMPDU_LAST_KNOWN;
130247cc0ca9SMatthias Frei status->ampdu_reference = ar->ampdu_reference;
130347cc0ca9SMatthias Frei
1304b9fd8a84SMichal Kazior ath10k_htt_rx_h_signal(ar, status, rxd);
1305500ff9f9SMichal Kazior ath10k_htt_rx_h_channel(ar, status, rxd, vdev_id);
1306b9fd8a84SMichal Kazior ath10k_htt_rx_h_rates(ar, status, rxd);
1307b9fd8a84SMichal Kazior }
1308b9fd8a84SMichal Kazior
130947cc0ca9SMatthias Frei if (is_last_ppdu) {
1310b9fd8a84SMichal Kazior ath10k_htt_rx_h_mactime(ar, status, rxd);
131147cc0ca9SMatthias Frei
131247cc0ca9SMatthias Frei /* set ampdu last segment flag */
131347cc0ca9SMatthias Frei status->flag |= RX_FLAG_AMPDU_IS_LAST;
131447cc0ca9SMatthias Frei ar->ampdu_reference++;
131547cc0ca9SMatthias Frei }
1316b9fd8a84SMichal Kazior }
1317b9fd8a84SMichal Kazior
131876f5329aSJanusz Dziedzic static const char * const tid_to_ac[] = {
131976f5329aSJanusz Dziedzic "BE",
132076f5329aSJanusz Dziedzic "BK",
132176f5329aSJanusz Dziedzic "BK",
132276f5329aSJanusz Dziedzic "BE",
132376f5329aSJanusz Dziedzic "VI",
132476f5329aSJanusz Dziedzic "VI",
132576f5329aSJanusz Dziedzic "VO",
132676f5329aSJanusz Dziedzic "VO",
132776f5329aSJanusz Dziedzic };
132876f5329aSJanusz Dziedzic
ath10k_get_tid(struct ieee80211_hdr * hdr,char * out,size_t size)132976f5329aSJanusz Dziedzic static char *ath10k_get_tid(struct ieee80211_hdr *hdr, char *out, size_t size)
133076f5329aSJanusz Dziedzic {
133176f5329aSJanusz Dziedzic u8 *qc;
133276f5329aSJanusz Dziedzic int tid;
133376f5329aSJanusz Dziedzic
133476f5329aSJanusz Dziedzic if (!ieee80211_is_data_qos(hdr->frame_control))
133576f5329aSJanusz Dziedzic return "";
133676f5329aSJanusz Dziedzic
133776f5329aSJanusz Dziedzic qc = ieee80211_get_qos_ctl(hdr);
133876f5329aSJanusz Dziedzic tid = *qc & IEEE80211_QOS_CTL_TID_MASK;
133976f5329aSJanusz Dziedzic if (tid < 8)
134076f5329aSJanusz Dziedzic snprintf(out, size, "tid %d (%s)", tid, tid_to_ac[tid]);
134176f5329aSJanusz Dziedzic else
134276f5329aSJanusz Dziedzic snprintf(out, size, "tid %d", tid);
134376f5329aSJanusz Dziedzic
134476f5329aSJanusz Dziedzic return out;
134576f5329aSJanusz Dziedzic }
134676f5329aSJanusz Dziedzic
ath10k_htt_rx_h_queue_msdu(struct ath10k * ar,struct ieee80211_rx_status * rx_status,struct sk_buff * skb)1347deba1b9eSRajkumar Manoharan static void ath10k_htt_rx_h_queue_msdu(struct ath10k *ar,
134885f6d7cfSJanusz Dziedzic struct ieee80211_rx_status *rx_status,
134985f6d7cfSJanusz Dziedzic struct sk_buff *skb)
135073539b40SJanusz Dziedzic {
135173539b40SJanusz Dziedzic struct ieee80211_rx_status *status;
1352deba1b9eSRajkumar Manoharan
1353deba1b9eSRajkumar Manoharan status = IEEE80211_SKB_RXCB(skb);
1354deba1b9eSRajkumar Manoharan *status = *rx_status;
1355deba1b9eSRajkumar Manoharan
135662652555SBob Copeland skb_queue_tail(&ar->htt.rx_msdus_q, skb);
1357deba1b9eSRajkumar Manoharan }
1358deba1b9eSRajkumar Manoharan
ath10k_process_rx(struct ath10k * ar,struct sk_buff * skb)1359deba1b9eSRajkumar Manoharan static void ath10k_process_rx(struct ath10k *ar, struct sk_buff *skb)
1360deba1b9eSRajkumar Manoharan {
1361deba1b9eSRajkumar Manoharan struct ieee80211_rx_status *status;
136276f5329aSJanusz Dziedzic struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
136376f5329aSJanusz Dziedzic char tid[32];
136473539b40SJanusz Dziedzic
136585f6d7cfSJanusz Dziedzic status = IEEE80211_SKB_RXCB(skb);
136673539b40SJanusz Dziedzic
1367ea0c3e2aSLinus Lüssing if (!(ar->filter_flags & FIF_FCSFAIL) &&
1368ea0c3e2aSLinus Lüssing status->flag & RX_FLAG_FAILED_FCS_CRC) {
1369ea0c3e2aSLinus Lüssing ar->stats.rx_crc_err_drop++;
1370ea0c3e2aSLinus Lüssing dev_kfree_skb_any(skb);
1371ea0c3e2aSLinus Lüssing return;
1372ea0c3e2aSLinus Lüssing }
1373ea0c3e2aSLinus Lüssing
13747aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_DATA,
13757fdd69c5SJohannes 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",
137685f6d7cfSJanusz Dziedzic skb,
137785f6d7cfSJanusz Dziedzic skb->len,
137876f5329aSJanusz Dziedzic ieee80211_get_SA(hdr),
137976f5329aSJanusz Dziedzic ath10k_get_tid(hdr, tid, sizeof(tid)),
138076f5329aSJanusz Dziedzic is_multicast_ether_addr(ieee80211_get_DA(hdr)) ?
138176f5329aSJanusz Dziedzic "mcast" : "ucast",
1382a60c0401SZhi-Jun You IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl)),
1383da6a4352SJohannes Berg (status->encoding == RX_ENC_LEGACY) ? "legacy" : "",
1384da6a4352SJohannes Berg (status->encoding == RX_ENC_HT) ? "ht" : "",
1385da6a4352SJohannes Berg (status->encoding == RX_ENC_VHT) ? "vht" : "",
1386da6a4352SJohannes Berg (status->bw == RATE_INFO_BW_40) ? "40" : "",
1387da6a4352SJohannes Berg (status->bw == RATE_INFO_BW_80) ? "80" : "",
1388da6a4352SJohannes Berg (status->bw == RATE_INFO_BW_160) ? "160" : "",
13897fdd69c5SJohannes Berg status->enc_flags & RX_ENC_FLAG_SHORT_GI ? "sgi " : "",
139073539b40SJanusz Dziedzic status->rate_idx,
13918613c948SJohannes Berg status->nss,
139273539b40SJanusz Dziedzic status->freq,
139387326c97SJanusz Dziedzic status->band, status->flag,
139478433f96SJanusz Dziedzic !!(status->flag & RX_FLAG_FAILED_FCS_CRC),
139576f5329aSJanusz Dziedzic !!(status->flag & RX_FLAG_MMIC_ERROR),
139676f5329aSJanusz Dziedzic !!(status->flag & RX_FLAG_AMSDU_MORE));
13977aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
139885f6d7cfSJanusz Dziedzic skb->data, skb->len);
13995ce8e7fdSRajkumar Manoharan trace_ath10k_rx_hdr(ar, skb->data, skb->len);
14005ce8e7fdSRajkumar Manoharan trace_ath10k_rx_payload(ar, skb->data, skb->len);
140173539b40SJanusz Dziedzic
14023c97f5deSRajkumar Manoharan ieee80211_rx_napi(ar->hw, NULL, skb, &ar->napi);
140373539b40SJanusz Dziedzic }
140473539b40SJanusz Dziedzic
ath10k_htt_rx_nwifi_hdrlen(struct ath10k * ar,struct ieee80211_hdr * hdr)140548f4ca34SMichal Kazior static int ath10k_htt_rx_nwifi_hdrlen(struct ath10k *ar,
140648f4ca34SMichal Kazior struct ieee80211_hdr *hdr)
1407d960c369SMichal Kazior {
140848f4ca34SMichal Kazior int len = ieee80211_hdrlen(hdr->frame_control);
140948f4ca34SMichal Kazior
141048f4ca34SMichal Kazior if (!test_bit(ATH10K_FW_FEATURE_NO_NWIFI_DECAP_4ADDR_PADDING,
1411c4cdf753SKalle Valo ar->running_fw->fw_file.fw_features))
141248f4ca34SMichal Kazior len = round_up(len, 4);
141348f4ca34SMichal Kazior
141448f4ca34SMichal Kazior return len;
1415d960c369SMichal Kazior }
1416d960c369SMichal Kazior
ath10k_htt_rx_h_undecap_raw(struct ath10k * ar,struct sk_buff * msdu,struct ieee80211_rx_status * status,enum htt_rx_mpdu_encrypt_type enctype,bool is_decrypted,const u8 first_hdr[64])1417581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_raw(struct ath10k *ar,
1418581c25f8SMichal Kazior struct sk_buff *msdu,
1419581c25f8SMichal Kazior struct ieee80211_rx_status *status,
1420581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype,
1421a2864772SBhagavathi Perumal S bool is_decrypted,
1422a2864772SBhagavathi Perumal S const u8 first_hdr[64])
14235e3dd157SKalle Valo {
1424f6dc2095SMichal Kazior struct ieee80211_hdr *hdr;
14256bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1426581c25f8SMichal Kazior struct htt_rx_desc *rxd;
14276bae9de6SFrancesco Magliocca struct rx_msdu_end_common *rxd_msdu_end_common;
1428581c25f8SMichal Kazior size_t hdr_len;
1429581c25f8SMichal Kazior size_t crypto_len;
1430581c25f8SMichal Kazior bool is_first;
1431581c25f8SMichal Kazior bool is_last;
1432a2864772SBhagavathi Perumal S bool msdu_limit_err;
1433a2864772SBhagavathi Perumal S int bytes_aligned = ar->hw_params.decap_align_bytes;
1434a2864772SBhagavathi Perumal S u8 *qos;
14355e3dd157SKalle Valo
14366bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
14376bae9de6SFrancesco Magliocca (void *)msdu->data - hw->rx_desc_ops->rx_desc_size);
14386bae9de6SFrancesco Magliocca
14396bae9de6SFrancesco Magliocca rxd_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rxd);
14406bae9de6SFrancesco Magliocca is_first = !!(rxd_msdu_end_common->info0 &
1441581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU));
14426bae9de6SFrancesco Magliocca is_last = !!(rxd_msdu_end_common->info0 &
1443581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU));
14449aa505d2SMichal Kazior
1445581c25f8SMichal Kazior /* Delivered decapped frame:
1446581c25f8SMichal Kazior * [802.11 header]
1447581c25f8SMichal Kazior * [crypto param] <-- can be trimmed if !fcs_err &&
1448581c25f8SMichal Kazior * !decrypt_err && !peer_idx_invalid
1449581c25f8SMichal Kazior * [amsdu header] <-- only if A-MSDU
1450581c25f8SMichal Kazior * [rfc1042/llc]
1451581c25f8SMichal Kazior * [payload]
1452581c25f8SMichal Kazior * [FCS] <-- at end, needs to be trimmed
1453581c25f8SMichal Kazior */
14545e3dd157SKalle Valo
1455a2864772SBhagavathi Perumal S /* Some hardwares(QCA99x0 variants) limit number of msdus in a-msdu when
1456a2864772SBhagavathi Perumal S * deaggregate, so that unwanted MSDU-deaggregation is avoided for
1457a2864772SBhagavathi Perumal S * error packets. If limit exceeds, hw sends all remaining MSDUs as
1458a2864772SBhagavathi Perumal S * a single last MSDU with this msdu limit error set.
1459a2864772SBhagavathi Perumal S */
14606bae9de6SFrancesco Magliocca msdu_limit_err = ath10k_htt_rx_desc_msdu_limit_error(hw, rxd);
1461a2864772SBhagavathi Perumal S
1462a2864772SBhagavathi Perumal S /* If MSDU limit error happens, then don't warn on, the partial raw MSDU
1463a2864772SBhagavathi Perumal S * without first MSDU is expected in that case, and handled later here.
1464a2864772SBhagavathi Perumal S */
1465581c25f8SMichal Kazior /* This probably shouldn't happen but warn just in case */
1466a2864772SBhagavathi Perumal S if (WARN_ON_ONCE(!is_first && !msdu_limit_err))
1467581c25f8SMichal Kazior return;
1468581c25f8SMichal Kazior
1469581c25f8SMichal Kazior /* This probably shouldn't happen but warn just in case */
1470a2864772SBhagavathi Perumal S if (WARN_ON_ONCE(!(is_first && is_last) && !msdu_limit_err))
1471581c25f8SMichal Kazior return;
1472581c25f8SMichal Kazior
1473581c25f8SMichal Kazior skb_trim(msdu, msdu->len - FCS_LEN);
1474581c25f8SMichal Kazior
1475a2864772SBhagavathi Perumal S /* Push original 80211 header */
1476a2864772SBhagavathi Perumal S if (unlikely(msdu_limit_err)) {
1477a2864772SBhagavathi Perumal S hdr = (struct ieee80211_hdr *)first_hdr;
1478a2864772SBhagavathi Perumal S hdr_len = ieee80211_hdrlen(hdr->frame_control);
1479a2864772SBhagavathi Perumal S crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype);
1480a2864772SBhagavathi Perumal S
1481a2864772SBhagavathi Perumal S if (ieee80211_is_data_qos(hdr->frame_control)) {
1482a2864772SBhagavathi Perumal S qos = ieee80211_get_qos_ctl(hdr);
1483a2864772SBhagavathi Perumal S qos[0] |= IEEE80211_QOS_CTL_A_MSDU_PRESENT;
1484a2864772SBhagavathi Perumal S }
1485a2864772SBhagavathi Perumal S
1486a2864772SBhagavathi Perumal S if (crypto_len)
1487a2864772SBhagavathi Perumal S memcpy(skb_push(msdu, crypto_len),
1488a2864772SBhagavathi Perumal S (void *)hdr + round_up(hdr_len, bytes_aligned),
1489a2864772SBhagavathi Perumal S crypto_len);
1490a2864772SBhagavathi Perumal S
1491a2864772SBhagavathi Perumal S memcpy(skb_push(msdu, hdr_len), hdr, hdr_len);
1492a2864772SBhagavathi Perumal S }
1493a2864772SBhagavathi Perumal S
1494581c25f8SMichal Kazior /* In most cases this will be true for sniffed frames. It makes sense
1495ccec9038SDavid Liu * to deliver them as-is without stripping the crypto param. This is
1496ccec9038SDavid Liu * necessary for software based decryption.
1497581c25f8SMichal Kazior *
1498581c25f8SMichal Kazior * If there's no error then the frame is decrypted. At least that is
1499581c25f8SMichal Kazior * the case for frames that come in via fragmented rx indication.
1500581c25f8SMichal Kazior */
1501581c25f8SMichal Kazior if (!is_decrypted)
1502581c25f8SMichal Kazior return;
1503581c25f8SMichal Kazior
1504581c25f8SMichal Kazior /* The payload is decrypted so strip crypto params. Start from tail
1505581c25f8SMichal Kazior * since hdr is used to compute some stuff.
1506581c25f8SMichal Kazior */
1507581c25f8SMichal Kazior
1508581c25f8SMichal Kazior hdr = (void *)msdu->data;
1509581c25f8SMichal Kazior
1510581c25f8SMichal Kazior /* Tail */
15117eccb738SVasanthakumar Thiagarajan if (status->flag & RX_FLAG_IV_STRIPPED) {
151260549cabSGrzegorz Bajorski skb_trim(msdu, msdu->len -
1513307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_mic_len(ar, enctype));
1514307aeb31SVasanthakumar Thiagarajan
1515307aeb31SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len -
1516307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_icv_len(ar, enctype));
15177eccb738SVasanthakumar Thiagarajan } else {
15187eccb738SVasanthakumar Thiagarajan /* MIC */
1519307aeb31SVasanthakumar Thiagarajan if (status->flag & RX_FLAG_MIC_STRIPPED)
1520307aeb31SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len -
1521307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_mic_len(ar, enctype));
15227eccb738SVasanthakumar Thiagarajan
15237eccb738SVasanthakumar Thiagarajan /* ICV */
1524307aeb31SVasanthakumar Thiagarajan if (status->flag & RX_FLAG_ICV_STRIPPED)
15257eccb738SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len -
1526307aeb31SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_icv_len(ar, enctype));
15277eccb738SVasanthakumar Thiagarajan }
1528581c25f8SMichal Kazior
1529581c25f8SMichal Kazior /* MMIC */
153060549cabSGrzegorz Bajorski if ((status->flag & RX_FLAG_MMIC_STRIPPED) &&
153160549cabSGrzegorz Bajorski !ieee80211_has_morefrags(hdr->frame_control) &&
1532581c25f8SMichal Kazior enctype == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
1533307aeb31SVasanthakumar Thiagarajan skb_trim(msdu, msdu->len - MICHAEL_MIC_LEN);
1534581c25f8SMichal Kazior
1535581c25f8SMichal Kazior /* Head */
153660549cabSGrzegorz Bajorski if (status->flag & RX_FLAG_IV_STRIPPED) {
1537f6dc2095SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control);
1538581c25f8SMichal Kazior crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype);
15395e3dd157SKalle Valo
1540581c25f8SMichal Kazior memmove((void *)msdu->data + crypto_len,
1541581c25f8SMichal Kazior (void *)msdu->data, hdr_len);
1542581c25f8SMichal Kazior skb_pull(msdu, crypto_len);
15435e3dd157SKalle Valo }
154460549cabSGrzegorz Bajorski }
15455e3dd157SKalle Valo
ath10k_htt_rx_h_undecap_nwifi(struct ath10k * ar,struct sk_buff * msdu,struct ieee80211_rx_status * status,const u8 first_hdr[64],enum htt_rx_mpdu_encrypt_type enctype)1546581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar,
1547581c25f8SMichal Kazior struct sk_buff *msdu,
1548581c25f8SMichal Kazior struct ieee80211_rx_status *status,
15497eccb738SVasanthakumar Thiagarajan const u8 first_hdr[64],
15507eccb738SVasanthakumar Thiagarajan enum htt_rx_mpdu_encrypt_type enctype)
1551581c25f8SMichal Kazior {
15526bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1553581c25f8SMichal Kazior struct ieee80211_hdr *hdr;
15549e19e132SVasanthakumar Thiagarajan struct htt_rx_desc *rxd;
1555581c25f8SMichal Kazior size_t hdr_len;
1556581c25f8SMichal Kazior u8 da[ETH_ALEN];
1557581c25f8SMichal Kazior u8 sa[ETH_ALEN];
15589e19e132SVasanthakumar Thiagarajan int l3_pad_bytes;
15597eccb738SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes;
1560581c25f8SMichal Kazior
1561581c25f8SMichal Kazior /* Delivered decapped frame:
1562581c25f8SMichal Kazior * [nwifi 802.11 header] <-- replaced with 802.11 hdr
1563581c25f8SMichal Kazior * [rfc1042/llc]
1564581c25f8SMichal Kazior *
1565581c25f8SMichal Kazior * Note: The nwifi header doesn't have QoS Control and is
1566581c25f8SMichal Kazior * (always?) a 3addr frame.
1567581c25f8SMichal Kazior *
1568581c25f8SMichal Kazior * Note2: There's no A-MSDU subframe header. Even if it's part
1569581c25f8SMichal Kazior * of an A-MSDU.
1570581c25f8SMichal Kazior */
1571581c25f8SMichal Kazior
157272bdeb86SMichal Kazior /* pull decapped header and copy SA & DA */
15736bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw, (void *)msdu->data -
15746bae9de6SFrancesco Magliocca hw->rx_desc_ops->rx_desc_size);
15759e19e132SVasanthakumar Thiagarajan
15766bae9de6SFrancesco Magliocca l3_pad_bytes = ath10k_htt_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd);
15779e19e132SVasanthakumar Thiagarajan skb_put(msdu, l3_pad_bytes);
15789e19e132SVasanthakumar Thiagarajan
15799e19e132SVasanthakumar Thiagarajan hdr = (struct ieee80211_hdr *)(msdu->data + l3_pad_bytes);
1580b8d55fcaSYanbo Li
158148f4ca34SMichal Kazior hdr_len = ath10k_htt_rx_nwifi_hdrlen(ar, hdr);
1582b25f32cbSKalle Valo ether_addr_copy(da, ieee80211_get_DA(hdr));
1583b25f32cbSKalle Valo ether_addr_copy(sa, ieee80211_get_SA(hdr));
1584581c25f8SMichal Kazior skb_pull(msdu, hdr_len);
1585784f69d3SMichal Kazior
1586784f69d3SMichal Kazior /* push original 802.11 header */
1587581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)first_hdr;
1588784f69d3SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control);
15897eccb738SVasanthakumar Thiagarajan
15907eccb738SVasanthakumar Thiagarajan if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
15917eccb738SVasanthakumar Thiagarajan memcpy(skb_push(msdu,
15927eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)),
15937eccb738SVasanthakumar Thiagarajan (void *)hdr + round_up(hdr_len, bytes_aligned),
15947eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype));
15957eccb738SVasanthakumar Thiagarajan }
15967eccb738SVasanthakumar Thiagarajan
1597581c25f8SMichal Kazior memcpy(skb_push(msdu, hdr_len), hdr, hdr_len);
1598784f69d3SMichal Kazior
159972bdeb86SMichal Kazior /* original 802.11 header has a different DA and in
160072bdeb86SMichal Kazior * case of 4addr it may also have different SA
160172bdeb86SMichal Kazior */
1602581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)msdu->data;
1603b25f32cbSKalle Valo ether_addr_copy(ieee80211_get_DA(hdr), da);
1604b25f32cbSKalle Valo ether_addr_copy(ieee80211_get_SA(hdr), sa);
16055e3dd157SKalle Valo }
16065e3dd157SKalle Valo
ath10k_htt_rx_h_find_rfc1042(struct ath10k * ar,struct sk_buff * msdu,enum htt_rx_mpdu_encrypt_type enctype)1607581c25f8SMichal Kazior static void *ath10k_htt_rx_h_find_rfc1042(struct ath10k *ar,
1608581c25f8SMichal Kazior struct sk_buff *msdu,
1609581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype)
16105e3dd157SKalle Valo {
16115e3dd157SKalle Valo struct ieee80211_hdr *hdr;
16126bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1613581c25f8SMichal Kazior struct htt_rx_desc *rxd;
16146bae9de6SFrancesco Magliocca struct rx_msdu_end_common *rxd_msdu_end_common;
16156bae9de6SFrancesco Magliocca u8 *rxd_rx_hdr_status;
1616581c25f8SMichal Kazior size_t hdr_len, crypto_len;
1617e3fbf8d2SMichal Kazior void *rfc1042;
1618581c25f8SMichal Kazior bool is_first, is_last, is_amsdu;
16192f38c3c0SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes;
16205e3dd157SKalle Valo
16216bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
16226bae9de6SFrancesco Magliocca (void *)msdu->data - hw->rx_desc_ops->rx_desc_size);
16235e3dd157SKalle Valo
16246bae9de6SFrancesco Magliocca rxd_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rxd);
16256bae9de6SFrancesco Magliocca rxd_rx_hdr_status = ath10k_htt_rx_desc_get_rx_hdr_status(hw, rxd);
16266bae9de6SFrancesco Magliocca hdr = (void *)rxd_rx_hdr_status;
16276bae9de6SFrancesco Magliocca
16286bae9de6SFrancesco Magliocca is_first = !!(rxd_msdu_end_common->info0 &
1629581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU));
16306bae9de6SFrancesco Magliocca is_last = !!(rxd_msdu_end_common->info0 &
1631581c25f8SMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU));
1632581c25f8SMichal Kazior is_amsdu = !(is_first && is_last);
1633e3fbf8d2SMichal Kazior
1634e3fbf8d2SMichal Kazior rfc1042 = hdr;
1635e3fbf8d2SMichal Kazior
1636581c25f8SMichal Kazior if (is_first) {
1637581c25f8SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control);
1638581c25f8SMichal Kazior crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype);
1639e3fbf8d2SMichal Kazior
16402f38c3c0SVasanthakumar Thiagarajan rfc1042 += round_up(hdr_len, bytes_aligned) +
16412f38c3c0SVasanthakumar Thiagarajan round_up(crypto_len, bytes_aligned);
16425e3dd157SKalle Valo }
16435e3dd157SKalle Valo
1644581c25f8SMichal Kazior if (is_amsdu)
1645581c25f8SMichal Kazior rfc1042 += sizeof(struct amsdu_subframe_hdr);
1646f6dc2095SMichal Kazior
1647581c25f8SMichal Kazior return rfc1042;
1648581c25f8SMichal Kazior }
1649581c25f8SMichal Kazior
ath10k_htt_rx_h_undecap_eth(struct ath10k * ar,struct sk_buff * msdu,struct ieee80211_rx_status * status,const u8 first_hdr[64],enum htt_rx_mpdu_encrypt_type enctype)1650581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar,
1651581c25f8SMichal Kazior struct sk_buff *msdu,
1652581c25f8SMichal Kazior struct ieee80211_rx_status *status,
1653581c25f8SMichal Kazior const u8 first_hdr[64],
1654581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype)
1655581c25f8SMichal Kazior {
16566bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1657581c25f8SMichal Kazior struct ieee80211_hdr *hdr;
1658581c25f8SMichal Kazior struct ethhdr *eth;
1659581c25f8SMichal Kazior size_t hdr_len;
1660581c25f8SMichal Kazior void *rfc1042;
1661581c25f8SMichal Kazior u8 da[ETH_ALEN];
1662581c25f8SMichal Kazior u8 sa[ETH_ALEN];
16639e19e132SVasanthakumar Thiagarajan int l3_pad_bytes;
16649e19e132SVasanthakumar Thiagarajan struct htt_rx_desc *rxd;
16657eccb738SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes;
1666581c25f8SMichal Kazior
1667581c25f8SMichal Kazior /* Delivered decapped frame:
1668581c25f8SMichal Kazior * [eth header] <-- replaced with 802.11 hdr & rfc1042/llc
1669581c25f8SMichal Kazior * [payload]
1670581c25f8SMichal Kazior */
1671581c25f8SMichal Kazior
1672581c25f8SMichal Kazior rfc1042 = ath10k_htt_rx_h_find_rfc1042(ar, msdu, enctype);
1673581c25f8SMichal Kazior if (WARN_ON_ONCE(!rfc1042))
1674581c25f8SMichal Kazior return;
1675581c25f8SMichal Kazior
16766bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
16776bae9de6SFrancesco Magliocca (void *)msdu->data - hw->rx_desc_ops->rx_desc_size);
16786bae9de6SFrancesco Magliocca
16796bae9de6SFrancesco Magliocca l3_pad_bytes = ath10k_htt_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd);
16809e19e132SVasanthakumar Thiagarajan skb_put(msdu, l3_pad_bytes);
16819e19e132SVasanthakumar Thiagarajan skb_pull(msdu, l3_pad_bytes);
16829e19e132SVasanthakumar Thiagarajan
1683581c25f8SMichal Kazior /* pull decapped header and copy SA & DA */
1684581c25f8SMichal Kazior eth = (struct ethhdr *)msdu->data;
1685581c25f8SMichal Kazior ether_addr_copy(da, eth->h_dest);
1686581c25f8SMichal Kazior ether_addr_copy(sa, eth->h_source);
1687581c25f8SMichal Kazior skb_pull(msdu, sizeof(struct ethhdr));
1688581c25f8SMichal Kazior
1689581c25f8SMichal Kazior /* push rfc1042/llc/snap */
1690581c25f8SMichal Kazior memcpy(skb_push(msdu, sizeof(struct rfc1042_hdr)), rfc1042,
1691581c25f8SMichal Kazior sizeof(struct rfc1042_hdr));
1692581c25f8SMichal Kazior
1693581c25f8SMichal Kazior /* push original 802.11 header */
1694581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)first_hdr;
1695581c25f8SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control);
16967eccb738SVasanthakumar Thiagarajan
16977eccb738SVasanthakumar Thiagarajan if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
16987eccb738SVasanthakumar Thiagarajan memcpy(skb_push(msdu,
16997eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)),
17007eccb738SVasanthakumar Thiagarajan (void *)hdr + round_up(hdr_len, bytes_aligned),
17017eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype));
17027eccb738SVasanthakumar Thiagarajan }
17037eccb738SVasanthakumar Thiagarajan
1704581c25f8SMichal Kazior memcpy(skb_push(msdu, hdr_len), hdr, hdr_len);
1705581c25f8SMichal Kazior
1706581c25f8SMichal Kazior /* original 802.11 header has a different DA and in
1707581c25f8SMichal Kazior * case of 4addr it may also have different SA
1708581c25f8SMichal Kazior */
1709581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)msdu->data;
1710581c25f8SMichal Kazior ether_addr_copy(ieee80211_get_DA(hdr), da);
1711581c25f8SMichal Kazior ether_addr_copy(ieee80211_get_SA(hdr), sa);
1712581c25f8SMichal Kazior }
1713581c25f8SMichal Kazior
ath10k_htt_rx_h_undecap_snap(struct ath10k * ar,struct sk_buff * msdu,struct ieee80211_rx_status * status,const u8 first_hdr[64],enum htt_rx_mpdu_encrypt_type enctype)1714581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar,
1715581c25f8SMichal Kazior struct sk_buff *msdu,
1716581c25f8SMichal Kazior struct ieee80211_rx_status *status,
17177eccb738SVasanthakumar Thiagarajan const u8 first_hdr[64],
17187eccb738SVasanthakumar Thiagarajan enum htt_rx_mpdu_encrypt_type enctype)
1719581c25f8SMichal Kazior {
17206bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1721581c25f8SMichal Kazior struct ieee80211_hdr *hdr;
1722581c25f8SMichal Kazior size_t hdr_len;
17239e19e132SVasanthakumar Thiagarajan int l3_pad_bytes;
17249e19e132SVasanthakumar Thiagarajan struct htt_rx_desc *rxd;
17257eccb738SVasanthakumar Thiagarajan int bytes_aligned = ar->hw_params.decap_align_bytes;
1726581c25f8SMichal Kazior
1727581c25f8SMichal Kazior /* Delivered decapped frame:
1728581c25f8SMichal Kazior * [amsdu header] <-- replaced with 802.11 hdr
1729581c25f8SMichal Kazior * [rfc1042/llc]
1730581c25f8SMichal Kazior * [payload]
1731581c25f8SMichal Kazior */
1732581c25f8SMichal Kazior
17336bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
17346bae9de6SFrancesco Magliocca (void *)msdu->data - hw->rx_desc_ops->rx_desc_size);
17356bae9de6SFrancesco Magliocca
17366bae9de6SFrancesco Magliocca l3_pad_bytes = ath10k_htt_rx_desc_get_l3_pad_bytes(&ar->hw_params, rxd);
17379e19e132SVasanthakumar Thiagarajan
17389e19e132SVasanthakumar Thiagarajan skb_put(msdu, l3_pad_bytes);
17399e19e132SVasanthakumar Thiagarajan skb_pull(msdu, sizeof(struct amsdu_subframe_hdr) + l3_pad_bytes);
1740581c25f8SMichal Kazior
1741581c25f8SMichal Kazior hdr = (struct ieee80211_hdr *)first_hdr;
1742581c25f8SMichal Kazior hdr_len = ieee80211_hdrlen(hdr->frame_control);
17437eccb738SVasanthakumar Thiagarajan
17447eccb738SVasanthakumar Thiagarajan if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
17457eccb738SVasanthakumar Thiagarajan memcpy(skb_push(msdu,
17467eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype)),
17477eccb738SVasanthakumar Thiagarajan (void *)hdr + round_up(hdr_len, bytes_aligned),
17487eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_crypto_param_len(ar, enctype));
17497eccb738SVasanthakumar Thiagarajan }
17507eccb738SVasanthakumar Thiagarajan
1751581c25f8SMichal Kazior memcpy(skb_push(msdu, hdr_len), hdr, hdr_len);
1752581c25f8SMichal Kazior }
1753581c25f8SMichal Kazior
ath10k_htt_rx_h_undecap(struct ath10k * ar,struct sk_buff * msdu,struct ieee80211_rx_status * status,u8 first_hdr[64],enum htt_rx_mpdu_encrypt_type enctype,bool is_decrypted)1754581c25f8SMichal Kazior static void ath10k_htt_rx_h_undecap(struct ath10k *ar,
1755581c25f8SMichal Kazior struct sk_buff *msdu,
1756581c25f8SMichal Kazior struct ieee80211_rx_status *status,
1757581c25f8SMichal Kazior u8 first_hdr[64],
1758581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype,
1759581c25f8SMichal Kazior bool is_decrypted)
1760581c25f8SMichal Kazior {
17616bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1762581c25f8SMichal Kazior struct htt_rx_desc *rxd;
17636bae9de6SFrancesco Magliocca struct rx_msdu_start_common *rxd_msdu_start_common;
1764581c25f8SMichal Kazior enum rx_msdu_decap_format decap;
1765581c25f8SMichal Kazior
1766581c25f8SMichal Kazior /* First msdu's decapped header:
1767581c25f8SMichal Kazior * [802.11 header] <-- padded to 4 bytes long
1768581c25f8SMichal Kazior * [crypto param] <-- padded to 4 bytes long
1769581c25f8SMichal Kazior * [amsdu header] <-- only if A-MSDU
1770581c25f8SMichal Kazior * [rfc1042/llc]
1771581c25f8SMichal Kazior *
1772581c25f8SMichal Kazior * Other (2nd, 3rd, ..) msdu's decapped header:
1773581c25f8SMichal Kazior * [amsdu header] <-- only if A-MSDU
1774581c25f8SMichal Kazior * [rfc1042/llc]
1775581c25f8SMichal Kazior */
1776581c25f8SMichal Kazior
17776bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
17786bae9de6SFrancesco Magliocca (void *)msdu->data - hw->rx_desc_ops->rx_desc_size);
17796bae9de6SFrancesco Magliocca
17806bae9de6SFrancesco Magliocca rxd_msdu_start_common = ath10k_htt_rx_desc_get_msdu_start(hw, rxd);
17816bae9de6SFrancesco Magliocca decap = MS(__le32_to_cpu(rxd_msdu_start_common->info1),
1782581c25f8SMichal Kazior RX_MSDU_START_INFO1_DECAP_FORMAT);
1783581c25f8SMichal Kazior
1784581c25f8SMichal Kazior switch (decap) {
1785581c25f8SMichal Kazior case RX_MSDU_DECAP_RAW:
1786581c25f8SMichal Kazior ath10k_htt_rx_h_undecap_raw(ar, msdu, status, enctype,
1787a2864772SBhagavathi Perumal S is_decrypted, first_hdr);
1788581c25f8SMichal Kazior break;
1789581c25f8SMichal Kazior case RX_MSDU_DECAP_NATIVE_WIFI:
17907eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_h_undecap_nwifi(ar, msdu, status, first_hdr,
17917eccb738SVasanthakumar Thiagarajan enctype);
1792581c25f8SMichal Kazior break;
1793581c25f8SMichal Kazior case RX_MSDU_DECAP_ETHERNET2_DIX:
1794581c25f8SMichal Kazior ath10k_htt_rx_h_undecap_eth(ar, msdu, status, first_hdr, enctype);
1795581c25f8SMichal Kazior break;
1796581c25f8SMichal Kazior case RX_MSDU_DECAP_8023_SNAP_LLC:
17977eccb738SVasanthakumar Thiagarajan ath10k_htt_rx_h_undecap_snap(ar, msdu, status, first_hdr,
17987eccb738SVasanthakumar Thiagarajan enctype);
1799581c25f8SMichal Kazior break;
1800581c25f8SMichal Kazior }
18015e3dd157SKalle Valo }
18025e3dd157SKalle Valo
ath10k_htt_rx_get_csum_state(struct ath10k_hw_params * hw,struct sk_buff * skb)18036bae9de6SFrancesco Magliocca static int ath10k_htt_rx_get_csum_state(struct ath10k_hw_params *hw, struct sk_buff *skb)
1804605f81aaSMichal Kazior {
1805605f81aaSMichal Kazior struct htt_rx_desc *rxd;
18066bae9de6SFrancesco Magliocca struct rx_attention *rxd_attention;
18076bae9de6SFrancesco Magliocca struct rx_msdu_start_common *rxd_msdu_start_common;
1808605f81aaSMichal Kazior u32 flags, info;
1809605f81aaSMichal Kazior bool is_ip4, is_ip6;
1810605f81aaSMichal Kazior bool is_tcp, is_udp;
1811605f81aaSMichal Kazior bool ip_csum_ok, tcpudp_csum_ok;
1812605f81aaSMichal Kazior
18136bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
18146bae9de6SFrancesco Magliocca (void *)skb->data - hw->rx_desc_ops->rx_desc_size);
18156bae9de6SFrancesco Magliocca
18166bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
18176bae9de6SFrancesco Magliocca rxd_msdu_start_common = ath10k_htt_rx_desc_get_msdu_start(hw, rxd);
18186bae9de6SFrancesco Magliocca flags = __le32_to_cpu(rxd_attention->flags);
18196bae9de6SFrancesco Magliocca info = __le32_to_cpu(rxd_msdu_start_common->info1);
1820605f81aaSMichal Kazior
1821605f81aaSMichal Kazior is_ip4 = !!(info & RX_MSDU_START_INFO1_IPV4_PROTO);
1822605f81aaSMichal Kazior is_ip6 = !!(info & RX_MSDU_START_INFO1_IPV6_PROTO);
1823605f81aaSMichal Kazior is_tcp = !!(info & RX_MSDU_START_INFO1_TCP_PROTO);
1824605f81aaSMichal Kazior is_udp = !!(info & RX_MSDU_START_INFO1_UDP_PROTO);
1825605f81aaSMichal Kazior ip_csum_ok = !(flags & RX_ATTENTION_FLAGS_IP_CHKSUM_FAIL);
1826605f81aaSMichal Kazior tcpudp_csum_ok = !(flags & RX_ATTENTION_FLAGS_TCP_UDP_CHKSUM_FAIL);
1827605f81aaSMichal Kazior
1828605f81aaSMichal Kazior if (!is_ip4 && !is_ip6)
1829605f81aaSMichal Kazior return CHECKSUM_NONE;
1830605f81aaSMichal Kazior if (!is_tcp && !is_udp)
1831605f81aaSMichal Kazior return CHECKSUM_NONE;
1832605f81aaSMichal Kazior if (!ip_csum_ok)
1833605f81aaSMichal Kazior return CHECKSUM_NONE;
1834605f81aaSMichal Kazior if (!tcpudp_csum_ok)
1835605f81aaSMichal Kazior return CHECKSUM_NONE;
1836605f81aaSMichal Kazior
1837605f81aaSMichal Kazior return CHECKSUM_UNNECESSARY;
1838605f81aaSMichal Kazior }
1839605f81aaSMichal Kazior
ath10k_htt_rx_h_csum_offload(struct ath10k_hw_params * hw,struct sk_buff * msdu)18406bae9de6SFrancesco Magliocca static void ath10k_htt_rx_h_csum_offload(struct ath10k_hw_params *hw,
18416bae9de6SFrancesco Magliocca struct sk_buff *msdu)
1842581c25f8SMichal Kazior {
18436bae9de6SFrancesco Magliocca msdu->ip_summed = ath10k_htt_rx_get_csum_state(hw, msdu);
1844581c25f8SMichal Kazior }
1845581c25f8SMichal Kazior
ath10k_htt_rx_h_get_pn(struct ath10k * ar,struct sk_buff * skb,enum htt_rx_mpdu_encrypt_type enctype)1846a1166b26SWen Gong static u64 ath10k_htt_rx_h_get_pn(struct ath10k *ar, struct sk_buff *skb,
1847a1166b26SWen Gong enum htt_rx_mpdu_encrypt_type enctype)
1848a1166b26SWen Gong {
1849a1166b26SWen Gong struct ieee80211_hdr *hdr;
1850a1166b26SWen Gong u64 pn = 0;
1851a1166b26SWen Gong u8 *ehdr;
1852a1166b26SWen Gong
1853*d9e38350SZhi-Jun You hdr = (struct ieee80211_hdr *)skb->data;
1854*d9e38350SZhi-Jun You ehdr = skb->data + ieee80211_hdrlen(hdr->frame_control);
1855a1166b26SWen Gong
1856a1166b26SWen Gong if (enctype == HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2) {
1857a1166b26SWen Gong pn = ehdr[0];
1858a1166b26SWen Gong pn |= (u64)ehdr[1] << 8;
1859a1166b26SWen Gong pn |= (u64)ehdr[4] << 16;
1860a1166b26SWen Gong pn |= (u64)ehdr[5] << 24;
1861a1166b26SWen Gong pn |= (u64)ehdr[6] << 32;
1862a1166b26SWen Gong pn |= (u64)ehdr[7] << 40;
1863a1166b26SWen Gong }
1864a1166b26SWen Gong return pn;
1865a1166b26SWen Gong }
1866a1166b26SWen Gong
ath10k_htt_rx_h_frag_multicast_check(struct ath10k * ar,struct sk_buff * skb)186765c415a1SWen Gong static bool ath10k_htt_rx_h_frag_multicast_check(struct ath10k *ar,
1868*d9e38350SZhi-Jun You struct sk_buff *skb)
186965c415a1SWen Gong {
187065c415a1SWen Gong struct ieee80211_hdr *hdr;
187165c415a1SWen Gong
1872*d9e38350SZhi-Jun You hdr = (struct ieee80211_hdr *)skb->data;
187365c415a1SWen Gong return !is_multicast_ether_addr(hdr->addr1);
187465c415a1SWen Gong }
187565c415a1SWen Gong
ath10k_htt_rx_h_frag_pn_check(struct ath10k * ar,struct sk_buff * skb,u16 peer_id,enum htt_rx_mpdu_encrypt_type enctype)1876a1166b26SWen Gong static bool ath10k_htt_rx_h_frag_pn_check(struct ath10k *ar,
1877a1166b26SWen Gong struct sk_buff *skb,
1878a1166b26SWen Gong u16 peer_id,
1879a1166b26SWen Gong enum htt_rx_mpdu_encrypt_type enctype)
1880a1166b26SWen Gong {
1881a1166b26SWen Gong struct ath10k_peer *peer;
1882a1166b26SWen Gong union htt_rx_pn_t *last_pn, new_pn = {0};
1883a1166b26SWen Gong struct ieee80211_hdr *hdr;
1884a1166b26SWen Gong u8 tid, frag_number;
1885a1166b26SWen Gong u32 seq;
1886a1166b26SWen Gong
1887a1166b26SWen Gong peer = ath10k_peer_find_by_id(ar, peer_id);
1888a1166b26SWen Gong if (!peer) {
1889a1166b26SWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT, "invalid peer for frag pn check\n");
1890a1166b26SWen Gong return false;
1891a1166b26SWen Gong }
1892a1166b26SWen Gong
1893*d9e38350SZhi-Jun You hdr = (struct ieee80211_hdr *)skb->data;
1894a1166b26SWen Gong if (ieee80211_is_data_qos(hdr->frame_control))
1895a1166b26SWen Gong tid = ieee80211_get_tid(hdr);
1896a1166b26SWen Gong else
1897a1166b26SWen Gong tid = ATH10K_TXRX_NON_QOS_TID;
1898a1166b26SWen Gong
1899a1166b26SWen Gong last_pn = &peer->frag_tids_last_pn[tid];
1900*d9e38350SZhi-Jun You new_pn.pn48 = ath10k_htt_rx_h_get_pn(ar, skb, enctype);
1901a1166b26SWen Gong frag_number = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
1902a60c0401SZhi-Jun You seq = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl));
1903a1166b26SWen Gong
1904a1166b26SWen Gong if (frag_number == 0) {
1905a1166b26SWen Gong last_pn->pn48 = new_pn.pn48;
1906a1166b26SWen Gong peer->frag_tids_seq[tid] = seq;
1907a1166b26SWen Gong } else {
1908a1166b26SWen Gong if (seq != peer->frag_tids_seq[tid])
1909a1166b26SWen Gong return false;
1910a1166b26SWen Gong
1911a1166b26SWen Gong if (new_pn.pn48 != last_pn->pn48 + 1)
1912a1166b26SWen Gong return false;
1913a1166b26SWen Gong
1914a1166b26SWen Gong last_pn->pn48 = new_pn.pn48;
1915a1166b26SWen Gong }
1916a1166b26SWen Gong
1917a1166b26SWen Gong return true;
1918a1166b26SWen Gong }
1919a1166b26SWen Gong
ath10k_htt_rx_h_mpdu(struct ath10k * ar,struct sk_buff_head * amsdu,struct ieee80211_rx_status * status,bool fill_crypt_header,u8 * rx_hdr,enum ath10k_pkt_rx_err * err,u16 peer_id,bool frag)1920581c25f8SMichal Kazior static void ath10k_htt_rx_h_mpdu(struct ath10k *ar,
1921581c25f8SMichal Kazior struct sk_buff_head *amsdu,
19227eccb738SVasanthakumar Thiagarajan struct ieee80211_rx_status *status,
1923caee728aSVasanthakumar Thiagarajan bool fill_crypt_header,
1924caee728aSVasanthakumar Thiagarajan u8 *rx_hdr,
1925a1166b26SWen Gong enum ath10k_pkt_rx_err *err,
1926a1166b26SWen Gong u16 peer_id,
1927a1166b26SWen Gong bool frag)
1928581c25f8SMichal Kazior {
1929581c25f8SMichal Kazior struct sk_buff *first;
1930581c25f8SMichal Kazior struct sk_buff *last;
1931a1166b26SWen Gong struct sk_buff *msdu, *temp;
19326bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
1933581c25f8SMichal Kazior struct htt_rx_desc *rxd;
19346bae9de6SFrancesco Magliocca struct rx_attention *rxd_attention;
19356bae9de6SFrancesco Magliocca struct rx_mpdu_start *rxd_mpdu_start;
19366bae9de6SFrancesco Magliocca
1937581c25f8SMichal Kazior struct ieee80211_hdr *hdr;
1938581c25f8SMichal Kazior enum htt_rx_mpdu_encrypt_type enctype;
1939581c25f8SMichal Kazior u8 first_hdr[64];
1940581c25f8SMichal Kazior u8 *qos;
1941581c25f8SMichal Kazior bool has_fcs_err;
1942581c25f8SMichal Kazior bool has_crypto_err;
1943581c25f8SMichal Kazior bool has_tkip_err;
1944581c25f8SMichal Kazior bool has_peer_idx_invalid;
1945581c25f8SMichal Kazior bool is_decrypted;
194660549cabSGrzegorz Bajorski bool is_mgmt;
1947581c25f8SMichal Kazior u32 attention;
194865c415a1SWen Gong bool frag_pn_check = true, multicast_check = true;
1949581c25f8SMichal Kazior
1950581c25f8SMichal Kazior if (skb_queue_empty(amsdu))
1951581c25f8SMichal Kazior return;
1952581c25f8SMichal Kazior
1953581c25f8SMichal Kazior first = skb_peek(amsdu);
19546bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
19556bae9de6SFrancesco Magliocca (void *)first->data - hw->rx_desc_ops->rx_desc_size);
1956581c25f8SMichal Kazior
19576bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
19586bae9de6SFrancesco Magliocca rxd_mpdu_start = ath10k_htt_rx_desc_get_mpdu_start(hw, rxd);
19596bae9de6SFrancesco Magliocca
19606bae9de6SFrancesco Magliocca is_mgmt = !!(rxd_attention->flags &
196160549cabSGrzegorz Bajorski __cpu_to_le32(RX_ATTENTION_FLAGS_MGMT_TYPE));
196260549cabSGrzegorz Bajorski
19636bae9de6SFrancesco Magliocca enctype = MS(__le32_to_cpu(rxd_mpdu_start->info0),
1964581c25f8SMichal Kazior RX_MPDU_START_INFO0_ENCRYPT_TYPE);
1965581c25f8SMichal Kazior
1966581c25f8SMichal Kazior /* First MSDU's Rx descriptor in an A-MSDU contains full 802.11
1967581c25f8SMichal Kazior * decapped header. It'll be used for undecapping of each MSDU.
1968581c25f8SMichal Kazior */
19696bae9de6SFrancesco Magliocca hdr = (void *)ath10k_htt_rx_desc_get_rx_hdr_status(hw, rxd);
19707eccb738SVasanthakumar Thiagarajan memcpy(first_hdr, hdr, RX_HTT_HDR_STATUS_LEN);
1971581c25f8SMichal Kazior
1972caee728aSVasanthakumar Thiagarajan if (rx_hdr)
1973caee728aSVasanthakumar Thiagarajan memcpy(rx_hdr, hdr, RX_HTT_HDR_STATUS_LEN);
1974caee728aSVasanthakumar Thiagarajan
1975581c25f8SMichal Kazior /* Each A-MSDU subframe will use the original header as the base and be
1976581c25f8SMichal Kazior * reported as a separate MSDU so strip the A-MSDU bit from QoS Ctl.
1977581c25f8SMichal Kazior */
1978581c25f8SMichal Kazior hdr = (void *)first_hdr;
19797eccb738SVasanthakumar Thiagarajan
19807eccb738SVasanthakumar Thiagarajan if (ieee80211_is_data_qos(hdr->frame_control)) {
1981581c25f8SMichal Kazior qos = ieee80211_get_qos_ctl(hdr);
1982581c25f8SMichal Kazior qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
19837eccb738SVasanthakumar Thiagarajan }
1984581c25f8SMichal Kazior
1985581c25f8SMichal Kazior /* Some attention flags are valid only in the last MSDU. */
1986581c25f8SMichal Kazior last = skb_peek_tail(amsdu);
19876bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
19886bae9de6SFrancesco Magliocca (void *)last->data - hw->rx_desc_ops->rx_desc_size);
19896bae9de6SFrancesco Magliocca
19906bae9de6SFrancesco Magliocca rxd_attention = ath10k_htt_rx_desc_get_attention(hw, rxd);
19916bae9de6SFrancesco Magliocca attention = __le32_to_cpu(rxd_attention->flags);
1992581c25f8SMichal Kazior
1993581c25f8SMichal Kazior has_fcs_err = !!(attention & RX_ATTENTION_FLAGS_FCS_ERR);
1994581c25f8SMichal Kazior has_crypto_err = !!(attention & RX_ATTENTION_FLAGS_DECRYPT_ERR);
1995581c25f8SMichal Kazior has_tkip_err = !!(attention & RX_ATTENTION_FLAGS_TKIP_MIC_ERR);
1996581c25f8SMichal Kazior has_peer_idx_invalid = !!(attention & RX_ATTENTION_FLAGS_PEER_IDX_INVALID);
1997581c25f8SMichal Kazior
1998581c25f8SMichal Kazior /* Note: If hardware captures an encrypted frame that it can't decrypt,
1999581c25f8SMichal Kazior * e.g. due to fcs error, missing peer or invalid key data it will
2000581c25f8SMichal Kazior * report the frame as raw.
2001581c25f8SMichal Kazior */
2002581c25f8SMichal Kazior is_decrypted = (enctype != HTT_RX_MPDU_ENCRYPT_NONE &&
2003581c25f8SMichal Kazior !has_fcs_err &&
2004581c25f8SMichal Kazior !has_crypto_err &&
2005581c25f8SMichal Kazior !has_peer_idx_invalid);
2006581c25f8SMichal Kazior
2007581c25f8SMichal Kazior /* Clear per-MPDU flags while leaving per-PPDU flags intact. */
2008581c25f8SMichal Kazior status->flag &= ~(RX_FLAG_FAILED_FCS_CRC |
2009581c25f8SMichal Kazior RX_FLAG_MMIC_ERROR |
2010581c25f8SMichal Kazior RX_FLAG_DECRYPTED |
2011581c25f8SMichal Kazior RX_FLAG_IV_STRIPPED |
201260549cabSGrzegorz Bajorski RX_FLAG_ONLY_MONITOR |
2013581c25f8SMichal Kazior RX_FLAG_MMIC_STRIPPED);
2014581c25f8SMichal Kazior
2015581c25f8SMichal Kazior if (has_fcs_err)
2016581c25f8SMichal Kazior status->flag |= RX_FLAG_FAILED_FCS_CRC;
2017581c25f8SMichal Kazior
2018581c25f8SMichal Kazior if (has_tkip_err)
2019581c25f8SMichal Kazior status->flag |= RX_FLAG_MMIC_ERROR;
2020581c25f8SMichal Kazior
2021caee728aSVasanthakumar Thiagarajan if (err) {
2022caee728aSVasanthakumar Thiagarajan if (has_fcs_err)
2023caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_FCS;
2024caee728aSVasanthakumar Thiagarajan else if (has_tkip_err)
2025caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_TKIP;
2026caee728aSVasanthakumar Thiagarajan else if (has_crypto_err)
2027caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_CRYPT;
2028caee728aSVasanthakumar Thiagarajan else if (has_peer_idx_invalid)
2029caee728aSVasanthakumar Thiagarajan *err = ATH10K_PKT_RX_ERR_PEER_IDX_INVAL;
2030caee728aSVasanthakumar Thiagarajan }
2031caee728aSVasanthakumar Thiagarajan
203260549cabSGrzegorz Bajorski /* Firmware reports all necessary management frames via WMI already.
203360549cabSGrzegorz Bajorski * They are not reported to monitor interfaces at all so pass the ones
203460549cabSGrzegorz Bajorski * coming via HTT to monitor interfaces instead. This simplifies
203560549cabSGrzegorz Bajorski * matters a lot.
203660549cabSGrzegorz Bajorski */
203760549cabSGrzegorz Bajorski if (is_mgmt)
203860549cabSGrzegorz Bajorski status->flag |= RX_FLAG_ONLY_MONITOR;
203960549cabSGrzegorz Bajorski
204060549cabSGrzegorz Bajorski if (is_decrypted) {
204160549cabSGrzegorz Bajorski status->flag |= RX_FLAG_DECRYPTED;
204260549cabSGrzegorz Bajorski
204360549cabSGrzegorz Bajorski if (likely(!is_mgmt))
20447eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_MMIC_STRIPPED;
20457eccb738SVasanthakumar Thiagarajan
20467eccb738SVasanthakumar Thiagarajan if (fill_crypt_header)
20477eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_MIC_STRIPPED |
20487eccb738SVasanthakumar Thiagarajan RX_FLAG_ICV_STRIPPED;
20497eccb738SVasanthakumar Thiagarajan else
20507eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_IV_STRIPPED;
205160549cabSGrzegorz Bajorski }
2052581c25f8SMichal Kazior
2053581c25f8SMichal Kazior skb_queue_walk(amsdu, msdu) {
2054a1166b26SWen Gong if (frag && !fill_crypt_header && is_decrypted &&
2055a1166b26SWen Gong enctype == HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2)
2056a1166b26SWen Gong frag_pn_check = ath10k_htt_rx_h_frag_pn_check(ar,
2057a1166b26SWen Gong msdu,
2058a1166b26SWen Gong peer_id,
2059a1166b26SWen Gong enctype);
2060a1166b26SWen Gong
206165c415a1SWen Gong if (frag)
206265c415a1SWen Gong multicast_check = ath10k_htt_rx_h_frag_multicast_check(ar,
2063*d9e38350SZhi-Jun You msdu);
206465c415a1SWen Gong
206565c415a1SWen Gong if (!frag_pn_check || !multicast_check) {
206665c415a1SWen Gong /* Discard the fragment with invalid PN or multicast DA
206765c415a1SWen Gong */
2068a1166b26SWen Gong temp = msdu->prev;
2069a1166b26SWen Gong __skb_unlink(msdu, amsdu);
2070a1166b26SWen Gong dev_kfree_skb_any(msdu);
2071a1166b26SWen Gong msdu = temp;
2072a1166b26SWen Gong frag_pn_check = true;
207365c415a1SWen Gong multicast_check = true;
2074a1166b26SWen Gong continue;
2075a1166b26SWen Gong }
2076a1166b26SWen Gong
20776bae9de6SFrancesco Magliocca ath10k_htt_rx_h_csum_offload(&ar->hw_params, msdu);
20780dc267b1SWen Gong
20790dc267b1SWen Gong if (frag && !fill_crypt_header &&
20800dc267b1SWen Gong enctype == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
20810dc267b1SWen Gong status->flag &= ~RX_FLAG_MMIC_STRIPPED;
20820dc267b1SWen Gong
2083581c25f8SMichal Kazior ath10k_htt_rx_h_undecap(ar, msdu, status, first_hdr, enctype,
2084581c25f8SMichal Kazior is_decrypted);
2085581c25f8SMichal Kazior
2086581c25f8SMichal Kazior /* Undecapping involves copying the original 802.11 header back
2087581c25f8SMichal Kazior * to sk_buff. If frame is protected and hardware has decrypted
2088581c25f8SMichal Kazior * it then remove the protected bit.
2089581c25f8SMichal Kazior */
2090581c25f8SMichal Kazior if (!is_decrypted)
2091581c25f8SMichal Kazior continue;
209260549cabSGrzegorz Bajorski if (is_mgmt)
209360549cabSGrzegorz Bajorski continue;
2094581c25f8SMichal Kazior
20957eccb738SVasanthakumar Thiagarajan if (fill_crypt_header)
20967eccb738SVasanthakumar Thiagarajan continue;
20977eccb738SVasanthakumar Thiagarajan
2098581c25f8SMichal Kazior hdr = (void *)msdu->data;
2099581c25f8SMichal Kazior hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED);
21000dc267b1SWen Gong
21010dc267b1SWen Gong if (frag && !fill_crypt_header &&
21020dc267b1SWen Gong enctype == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
21030dc267b1SWen Gong status->flag &= ~RX_FLAG_IV_STRIPPED &
21040dc267b1SWen Gong ~RX_FLAG_MMIC_STRIPPED;
2105581c25f8SMichal Kazior }
2106581c25f8SMichal Kazior }
2107581c25f8SMichal Kazior
ath10k_htt_rx_h_enqueue(struct ath10k * ar,struct sk_buff_head * amsdu,struct ieee80211_rx_status * status)2108deba1b9eSRajkumar Manoharan static void ath10k_htt_rx_h_enqueue(struct ath10k *ar,
2109581c25f8SMichal Kazior struct sk_buff_head *amsdu,
2110581c25f8SMichal Kazior struct ieee80211_rx_status *status)
2111581c25f8SMichal Kazior {
2112581c25f8SMichal Kazior struct sk_buff *msdu;
21137eccb738SVasanthakumar Thiagarajan struct sk_buff *first_subframe;
21147eccb738SVasanthakumar Thiagarajan
21157eccb738SVasanthakumar Thiagarajan first_subframe = skb_peek(amsdu);
2116581c25f8SMichal Kazior
2117581c25f8SMichal Kazior while ((msdu = __skb_dequeue(amsdu))) {
2118581c25f8SMichal Kazior /* Setup per-MSDU flags */
2119581c25f8SMichal Kazior if (skb_queue_empty(amsdu))
2120581c25f8SMichal Kazior status->flag &= ~RX_FLAG_AMSDU_MORE;
2121581c25f8SMichal Kazior else
2122581c25f8SMichal Kazior status->flag |= RX_FLAG_AMSDU_MORE;
2123581c25f8SMichal Kazior
21247eccb738SVasanthakumar Thiagarajan if (msdu == first_subframe) {
21257eccb738SVasanthakumar Thiagarajan first_subframe = NULL;
21267eccb738SVasanthakumar Thiagarajan status->flag &= ~RX_FLAG_ALLOW_SAME_PN;
21277eccb738SVasanthakumar Thiagarajan } else {
21287eccb738SVasanthakumar Thiagarajan status->flag |= RX_FLAG_ALLOW_SAME_PN;
21297eccb738SVasanthakumar Thiagarajan }
21307eccb738SVasanthakumar Thiagarajan
2131deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_queue_msdu(ar, status, msdu);
2132581c25f8SMichal Kazior }
2133581c25f8SMichal Kazior }
2134581c25f8SMichal Kazior
ath10k_unchain_msdu(struct sk_buff_head * amsdu,unsigned long * unchain_cnt)2135caee728aSVasanthakumar Thiagarajan static int ath10k_unchain_msdu(struct sk_buff_head *amsdu,
213628bbe237SKalle Valo unsigned long *unchain_cnt)
2137bfa35368SBen Greear {
21389aa505d2SMichal Kazior struct sk_buff *skb, *first;
2139bfa35368SBen Greear int space;
2140bfa35368SBen Greear int total_len = 0;
2141caee728aSVasanthakumar Thiagarajan int amsdu_len = skb_queue_len(amsdu);
2142bfa35368SBen Greear
2143bfa35368SBen Greear /* TODO: Might could optimize this by using
2144bfa35368SBen Greear * skb_try_coalesce or similar method to
2145bfa35368SBen Greear * decrease copying, or maybe get mac80211 to
2146bfa35368SBen Greear * provide a way to just receive a list of
2147bfa35368SBen Greear * skb?
2148bfa35368SBen Greear */
2149bfa35368SBen Greear
21509aa505d2SMichal Kazior first = __skb_dequeue(amsdu);
2151bfa35368SBen Greear
2152bfa35368SBen Greear /* Allocate total length all at once. */
21539aa505d2SMichal Kazior skb_queue_walk(amsdu, skb)
21549aa505d2SMichal Kazior total_len += skb->len;
2155bfa35368SBen Greear
21569aa505d2SMichal Kazior space = total_len - skb_tailroom(first);
2157bfa35368SBen Greear if ((space > 0) &&
21589aa505d2SMichal Kazior (pskb_expand_head(first, 0, space, GFP_ATOMIC) < 0)) {
2159bfa35368SBen Greear /* TODO: bump some rx-oom error stat */
2160bfa35368SBen Greear /* put it back together so we can free the
2161bfa35368SBen Greear * whole list at once.
2162bfa35368SBen Greear */
21639aa505d2SMichal Kazior __skb_queue_head(amsdu, first);
2164bfa35368SBen Greear return -1;
2165bfa35368SBen Greear }
2166bfa35368SBen Greear
2167bfa35368SBen Greear /* Walk list again, copying contents into
2168bfa35368SBen Greear * msdu_head
2169bfa35368SBen Greear */
21709aa505d2SMichal Kazior while ((skb = __skb_dequeue(amsdu))) {
21719aa505d2SMichal Kazior skb_copy_from_linear_data(skb, skb_put(first, skb->len),
21729aa505d2SMichal Kazior skb->len);
21739aa505d2SMichal Kazior dev_kfree_skb_any(skb);
2174bfa35368SBen Greear }
2175bfa35368SBen Greear
21769aa505d2SMichal Kazior __skb_queue_head(amsdu, first);
2177caee728aSVasanthakumar Thiagarajan
2178caee728aSVasanthakumar Thiagarajan *unchain_cnt += amsdu_len - 1;
2179caee728aSVasanthakumar Thiagarajan
2180bfa35368SBen Greear return 0;
2181bfa35368SBen Greear }
2182bfa35368SBen Greear
ath10k_htt_rx_h_unchain(struct ath10k * ar,struct sk_buff_head * amsdu,unsigned long * drop_cnt,unsigned long * unchain_cnt)2183581c25f8SMichal Kazior static void ath10k_htt_rx_h_unchain(struct ath10k *ar,
2184caee728aSVasanthakumar Thiagarajan struct sk_buff_head *amsdu,
218528bbe237SKalle Valo unsigned long *drop_cnt,
218628bbe237SKalle Valo unsigned long *unchain_cnt)
21872acc4eb2SJanusz Dziedzic {
2188581c25f8SMichal Kazior struct sk_buff *first;
21896bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
2190581c25f8SMichal Kazior struct htt_rx_desc *rxd;
21916bae9de6SFrancesco Magliocca struct rx_msdu_start_common *rxd_msdu_start_common;
21926bae9de6SFrancesco Magliocca struct rx_frag_info_common *rxd_frag_info;
2193581c25f8SMichal Kazior enum rx_msdu_decap_format decap;
21947aa7a72aSMichal Kazior
2195581c25f8SMichal Kazior first = skb_peek(amsdu);
21966bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
21976bae9de6SFrancesco Magliocca (void *)first->data - hw->rx_desc_ops->rx_desc_size);
21986bae9de6SFrancesco Magliocca
21996bae9de6SFrancesco Magliocca rxd_msdu_start_common = ath10k_htt_rx_desc_get_msdu_start(hw, rxd);
22006bae9de6SFrancesco Magliocca rxd_frag_info = ath10k_htt_rx_desc_get_frag_info(hw, rxd);
22016bae9de6SFrancesco Magliocca decap = MS(__le32_to_cpu(rxd_msdu_start_common->info1),
2202581c25f8SMichal Kazior RX_MSDU_START_INFO1_DECAP_FORMAT);
2203581c25f8SMichal Kazior
2204581c25f8SMichal Kazior /* FIXME: Current unchaining logic can only handle simple case of raw
2205581c25f8SMichal Kazior * msdu chaining. If decapping is other than raw the chaining may be
2206581c25f8SMichal Kazior * more complex and this isn't handled by the current code. Don't even
2207581c25f8SMichal Kazior * try re-constructing such frames - it'll be pretty much garbage.
2208581c25f8SMichal Kazior */
2209581c25f8SMichal Kazior if (decap != RX_MSDU_DECAP_RAW ||
22106bae9de6SFrancesco Magliocca skb_queue_len(amsdu) != 1 + rxd_frag_info->ring2_more_count) {
2211caee728aSVasanthakumar Thiagarajan *drop_cnt += skb_queue_len(amsdu);
2212581c25f8SMichal Kazior __skb_queue_purge(amsdu);
2213581c25f8SMichal Kazior return;
2214581c25f8SMichal Kazior }
2215581c25f8SMichal Kazior
2216caee728aSVasanthakumar Thiagarajan ath10k_unchain_msdu(amsdu, unchain_cnt);
2217581c25f8SMichal Kazior }
2218581c25f8SMichal Kazior
ath10k_htt_rx_validate_amsdu(struct ath10k * ar,struct sk_buff_head * amsdu)221962a8ff67SSriram R static bool ath10k_htt_rx_validate_amsdu(struct ath10k *ar,
222062a8ff67SSriram R struct sk_buff_head *amsdu)
222162a8ff67SSriram R {
222262a8ff67SSriram R u8 *subframe_hdr;
222362a8ff67SSriram R struct sk_buff *first;
222462a8ff67SSriram R bool is_first, is_last;
22256bae9de6SFrancesco Magliocca struct ath10k_hw_params *hw = &ar->hw_params;
222662a8ff67SSriram R struct htt_rx_desc *rxd;
22276bae9de6SFrancesco Magliocca struct rx_msdu_end_common *rxd_msdu_end_common;
22286bae9de6SFrancesco Magliocca struct rx_mpdu_start *rxd_mpdu_start;
222962a8ff67SSriram R struct ieee80211_hdr *hdr;
223062a8ff67SSriram R size_t hdr_len, crypto_len;
223162a8ff67SSriram R enum htt_rx_mpdu_encrypt_type enctype;
223262a8ff67SSriram R int bytes_aligned = ar->hw_params.decap_align_bytes;
223362a8ff67SSriram R
223462a8ff67SSriram R first = skb_peek(amsdu);
223562a8ff67SSriram R
22366bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
22376bae9de6SFrancesco Magliocca (void *)first->data - hw->rx_desc_ops->rx_desc_size);
223862a8ff67SSriram R
22396bae9de6SFrancesco Magliocca rxd_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rxd);
22406bae9de6SFrancesco Magliocca rxd_mpdu_start = ath10k_htt_rx_desc_get_mpdu_start(hw, rxd);
22416bae9de6SFrancesco Magliocca hdr = (void *)ath10k_htt_rx_desc_get_rx_hdr_status(hw, rxd);
22426bae9de6SFrancesco Magliocca
22436bae9de6SFrancesco Magliocca is_first = !!(rxd_msdu_end_common->info0 &
224462a8ff67SSriram R __cpu_to_le32(RX_MSDU_END_INFO0_FIRST_MSDU));
22456bae9de6SFrancesco Magliocca is_last = !!(rxd_msdu_end_common->info0 &
224662a8ff67SSriram R __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU));
224762a8ff67SSriram R
224862a8ff67SSriram R /* Return in case of non-aggregated msdu */
224962a8ff67SSriram R if (is_first && is_last)
225062a8ff67SSriram R return true;
225162a8ff67SSriram R
225262a8ff67SSriram R /* First msdu flag is not set for the first msdu of the list */
225362a8ff67SSriram R if (!is_first)
225462a8ff67SSriram R return false;
225562a8ff67SSriram R
22566bae9de6SFrancesco Magliocca enctype = MS(__le32_to_cpu(rxd_mpdu_start->info0),
225762a8ff67SSriram R RX_MPDU_START_INFO0_ENCRYPT_TYPE);
225862a8ff67SSriram R
225962a8ff67SSriram R hdr_len = ieee80211_hdrlen(hdr->frame_control);
226062a8ff67SSriram R crypto_len = ath10k_htt_rx_crypto_param_len(ar, enctype);
226162a8ff67SSriram R
226262a8ff67SSriram R subframe_hdr = (u8 *)hdr + round_up(hdr_len, bytes_aligned) +
226362a8ff67SSriram R crypto_len;
226462a8ff67SSriram R
226562a8ff67SSriram R /* Validate if the amsdu has a proper first subframe.
226662a8ff67SSriram R * There are chances a single msdu can be received as amsdu when
226762a8ff67SSriram R * the unauthenticated amsdu flag of a QoS header
226862a8ff67SSriram R * gets flipped in non-SPP AMSDU's, in such cases the first
226962a8ff67SSriram R * subframe has llc/snap header in place of a valid da.
227062a8ff67SSriram R * return false if the da matches rfc1042 pattern
227162a8ff67SSriram R */
227262a8ff67SSriram R if (ether_addr_equal(subframe_hdr, rfc1042_header))
227362a8ff67SSriram R return false;
227462a8ff67SSriram R
227562a8ff67SSriram R return true;
227662a8ff67SSriram R }
227762a8ff67SSriram R
ath10k_htt_rx_amsdu_allowed(struct ath10k * ar,struct sk_buff_head * amsdu,struct ieee80211_rx_status * rx_status)2278581c25f8SMichal Kazior static bool ath10k_htt_rx_amsdu_allowed(struct ath10k *ar,
2279581c25f8SMichal Kazior struct sk_buff_head *amsdu,
2280581c25f8SMichal Kazior struct ieee80211_rx_status *rx_status)
2281581c25f8SMichal Kazior {
2282581c25f8SMichal Kazior if (!rx_status->freq) {
2283984eb905SGabriel Craciunescu ath10k_dbg(ar, ATH10K_DBG_HTT, "no channel configured; ignoring frame(s)!\n");
22842acc4eb2SJanusz Dziedzic return false;
22852acc4eb2SJanusz Dziedzic }
22862acc4eb2SJanusz Dziedzic
2287581c25f8SMichal Kazior if (test_bit(ATH10K_CAC_RUNNING, &ar->dev_flags)) {
2288581c25f8SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx cac running\n");
22892acc4eb2SJanusz Dziedzic return false;
22902acc4eb2SJanusz Dziedzic }
22912acc4eb2SJanusz Dziedzic
229262a8ff67SSriram R if (!ath10k_htt_rx_validate_amsdu(ar, amsdu)) {
229362a8ff67SSriram R ath10k_dbg(ar, ATH10K_DBG_HTT, "invalid amsdu received\n");
229462a8ff67SSriram R return false;
229562a8ff67SSriram R }
229662a8ff67SSriram R
22972acc4eb2SJanusz Dziedzic return true;
22982acc4eb2SJanusz Dziedzic }
22992acc4eb2SJanusz Dziedzic
ath10k_htt_rx_h_filter(struct ath10k * ar,struct sk_buff_head * amsdu,struct ieee80211_rx_status * rx_status,unsigned long * drop_cnt)2300581c25f8SMichal Kazior static void ath10k_htt_rx_h_filter(struct ath10k *ar,
2301581c25f8SMichal Kazior struct sk_buff_head *amsdu,
2302caee728aSVasanthakumar Thiagarajan struct ieee80211_rx_status *rx_status,
230328bbe237SKalle Valo unsigned long *drop_cnt)
2304581c25f8SMichal Kazior {
2305581c25f8SMichal Kazior if (skb_queue_empty(amsdu))
2306581c25f8SMichal Kazior return;
2307581c25f8SMichal Kazior
2308581c25f8SMichal Kazior if (ath10k_htt_rx_amsdu_allowed(ar, amsdu, rx_status))
2309581c25f8SMichal Kazior return;
2310581c25f8SMichal Kazior
2311caee728aSVasanthakumar Thiagarajan if (drop_cnt)
2312caee728aSVasanthakumar Thiagarajan *drop_cnt += skb_queue_len(amsdu);
2313caee728aSVasanthakumar Thiagarajan
2314581c25f8SMichal Kazior __skb_queue_purge(amsdu);
2315581c25f8SMichal Kazior }
2316581c25f8SMichal Kazior
ath10k_htt_rx_handle_amsdu(struct ath10k_htt * htt)231718235664SRajkumar Manoharan static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt *htt)
231818235664SRajkumar Manoharan {
231918235664SRajkumar Manoharan struct ath10k *ar = htt->ar;
2320237e15dfSAshok Raj Nagarajan struct ieee80211_rx_status *rx_status = &htt->rx_status;
232118235664SRajkumar Manoharan struct sk_buff_head amsdu;
2322deba1b9eSRajkumar Manoharan int ret;
232328bbe237SKalle Valo unsigned long drop_cnt = 0;
232428bbe237SKalle Valo unsigned long unchain_cnt = 0;
232528bbe237SKalle Valo unsigned long drop_cnt_filter = 0;
232628bbe237SKalle Valo unsigned long msdus_to_queue, num_msdus;
2327caee728aSVasanthakumar Thiagarajan enum ath10k_pkt_rx_err err = ATH10K_PKT_RX_ERR_MAX;
2328caee728aSVasanthakumar Thiagarajan u8 first_hdr[RX_HTT_HDR_STATUS_LEN];
232918235664SRajkumar Manoharan
233018235664SRajkumar Manoharan __skb_queue_head_init(&amsdu);
233118235664SRajkumar Manoharan
233218235664SRajkumar Manoharan spin_lock_bh(&htt->rx_ring.lock);
233318235664SRajkumar Manoharan if (htt->rx_confused) {
233418235664SRajkumar Manoharan spin_unlock_bh(&htt->rx_ring.lock);
233518235664SRajkumar Manoharan return -EIO;
233618235664SRajkumar Manoharan }
233718235664SRajkumar Manoharan ret = ath10k_htt_rx_amsdu_pop(htt, &amsdu);
233818235664SRajkumar Manoharan spin_unlock_bh(&htt->rx_ring.lock);
233918235664SRajkumar Manoharan
234018235664SRajkumar Manoharan if (ret < 0) {
234118235664SRajkumar Manoharan ath10k_warn(ar, "rx ring became corrupted: %d\n", ret);
234218235664SRajkumar Manoharan __skb_queue_purge(&amsdu);
234318235664SRajkumar Manoharan /* FIXME: It's probably a good idea to reboot the
234418235664SRajkumar Manoharan * device instead of leaving it inoperable.
234518235664SRajkumar Manoharan */
234618235664SRajkumar Manoharan htt->rx_confused = true;
234718235664SRajkumar Manoharan return ret;
234818235664SRajkumar Manoharan }
234918235664SRajkumar Manoharan
2350caee728aSVasanthakumar Thiagarajan num_msdus = skb_queue_len(&amsdu);
2351caee728aSVasanthakumar Thiagarajan
2352237e15dfSAshok Raj Nagarajan ath10k_htt_rx_h_ppdu(ar, &amsdu, rx_status, 0xffff);
23537543d116SMohammed Shafi Shajakhan
23547543d116SMohammed Shafi Shajakhan /* only for ret = 1 indicates chained msdus */
23557543d116SMohammed Shafi Shajakhan if (ret > 0)
2356caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_unchain(ar, &amsdu, &drop_cnt, &unchain_cnt);
23577543d116SMohammed Shafi Shajakhan
2358caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_filter(ar, &amsdu, rx_status, &drop_cnt_filter);
2359a1166b26SWen Gong ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status, true, first_hdr, &err, 0,
2360a1166b26SWen Gong false);
2361caee728aSVasanthakumar Thiagarajan msdus_to_queue = skb_queue_len(&amsdu);
2362deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_enqueue(ar, &amsdu, rx_status);
236318235664SRajkumar Manoharan
2364caee728aSVasanthakumar Thiagarajan ath10k_sta_update_rx_tid_stats(ar, first_hdr, num_msdus, err,
2365caee728aSVasanthakumar Thiagarajan unchain_cnt, drop_cnt, drop_cnt_filter,
2366caee728aSVasanthakumar Thiagarajan msdus_to_queue);
2367caee728aSVasanthakumar Thiagarajan
2368deba1b9eSRajkumar Manoharan return 0;
236918235664SRajkumar Manoharan }
237018235664SRajkumar Manoharan
ath10k_htt_rx_mpdu_desc_pn_hl(struct htt_hl_rx_desc * rx_desc,union htt_rx_pn_t * pn,int pn_len_bits)2371130c7749SWen Gong static void ath10k_htt_rx_mpdu_desc_pn_hl(struct htt_hl_rx_desc *rx_desc,
2372130c7749SWen Gong union htt_rx_pn_t *pn,
2373130c7749SWen Gong int pn_len_bits)
2374130c7749SWen Gong {
2375130c7749SWen Gong switch (pn_len_bits) {
2376130c7749SWen Gong case 48:
2377130c7749SWen Gong pn->pn48 = __le32_to_cpu(rx_desc->pn_31_0) +
2378130c7749SWen Gong ((u64)(__le32_to_cpu(rx_desc->u0.pn_63_32) & 0xFFFF) << 32);
2379130c7749SWen Gong break;
2380130c7749SWen Gong case 24:
2381130c7749SWen Gong pn->pn24 = __le32_to_cpu(rx_desc->pn_31_0);
2382130c7749SWen Gong break;
23830dc26931SYueHaibing }
2384130c7749SWen Gong }
2385130c7749SWen Gong
ath10k_htt_rx_pn_cmp48(union htt_rx_pn_t * new_pn,union htt_rx_pn_t * old_pn)2386130c7749SWen Gong static bool ath10k_htt_rx_pn_cmp48(union htt_rx_pn_t *new_pn,
2387130c7749SWen Gong union htt_rx_pn_t *old_pn)
2388130c7749SWen Gong {
2389130c7749SWen Gong return ((new_pn->pn48 & 0xffffffffffffULL) <=
2390130c7749SWen Gong (old_pn->pn48 & 0xffffffffffffULL));
2391130c7749SWen Gong }
2392130c7749SWen Gong
ath10k_htt_rx_pn_check_replay_hl(struct ath10k * ar,struct ath10k_peer * peer,struct htt_rx_indication_hl * rx)2393130c7749SWen Gong static bool ath10k_htt_rx_pn_check_replay_hl(struct ath10k *ar,
2394130c7749SWen Gong struct ath10k_peer *peer,
2395130c7749SWen Gong struct htt_rx_indication_hl *rx)
2396130c7749SWen Gong {
2397130c7749SWen Gong bool last_pn_valid, pn_invalid = false;
2398130c7749SWen Gong enum htt_txrx_sec_cast_type sec_index;
2399130c7749SWen Gong enum htt_security_types sec_type;
2400130c7749SWen Gong union htt_rx_pn_t new_pn = {0};
2401130c7749SWen Gong struct htt_hl_rx_desc *rx_desc;
2402130c7749SWen Gong union htt_rx_pn_t *last_pn;
2403130c7749SWen Gong u32 rx_desc_info, tid;
2404130c7749SWen Gong int num_mpdu_ranges;
2405130c7749SWen Gong
2406130c7749SWen Gong lockdep_assert_held(&ar->data_lock);
2407130c7749SWen Gong
2408130c7749SWen Gong if (!peer)
2409130c7749SWen Gong return false;
2410130c7749SWen Gong
2411130c7749SWen Gong if (!(rx->fw_desc.flags & FW_RX_DESC_FLAGS_FIRST_MSDU))
2412130c7749SWen Gong return false;
2413130c7749SWen Gong
2414130c7749SWen Gong num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1),
2415130c7749SWen Gong HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES);
2416130c7749SWen Gong
2417130c7749SWen Gong rx_desc = (struct htt_hl_rx_desc *)&rx->mpdu_ranges[num_mpdu_ranges];
2418130c7749SWen Gong rx_desc_info = __le32_to_cpu(rx_desc->info);
2419130c7749SWen Gong
2420130c7749SWen Gong if (!MS(rx_desc_info, HTT_RX_DESC_HL_INFO_ENCRYPTED))
2421130c7749SWen Gong return false;
2422130c7749SWen Gong
2423130c7749SWen Gong tid = MS(rx->hdr.info0, HTT_RX_INDICATION_INFO0_EXT_TID);
2424130c7749SWen Gong last_pn_valid = peer->tids_last_pn_valid[tid];
2425130c7749SWen Gong last_pn = &peer->tids_last_pn[tid];
2426130c7749SWen Gong
2427130c7749SWen Gong if (MS(rx_desc_info, HTT_RX_DESC_HL_INFO_MCAST_BCAST))
2428130c7749SWen Gong sec_index = HTT_TXRX_SEC_MCAST;
2429130c7749SWen Gong else
2430130c7749SWen Gong sec_index = HTT_TXRX_SEC_UCAST;
2431130c7749SWen Gong
2432130c7749SWen Gong sec_type = peer->rx_pn[sec_index].sec_type;
2433130c7749SWen Gong ath10k_htt_rx_mpdu_desc_pn_hl(rx_desc, &new_pn, peer->rx_pn[sec_index].pn_len);
2434130c7749SWen Gong
2435130c7749SWen Gong if (sec_type != HTT_SECURITY_AES_CCMP &&
2436130c7749SWen Gong sec_type != HTT_SECURITY_TKIP &&
2437130c7749SWen Gong sec_type != HTT_SECURITY_TKIP_NOMIC)
2438130c7749SWen Gong return false;
2439130c7749SWen Gong
2440130c7749SWen Gong if (last_pn_valid)
2441130c7749SWen Gong pn_invalid = ath10k_htt_rx_pn_cmp48(&new_pn, last_pn);
2442130c7749SWen Gong else
24430f7ab288Szhengbin peer->tids_last_pn_valid[tid] = true;
2444130c7749SWen Gong
2445130c7749SWen Gong if (!pn_invalid)
2446130c7749SWen Gong last_pn->pn48 = new_pn.pn48;
2447130c7749SWen Gong
2448130c7749SWen Gong return pn_invalid;
2449130c7749SWen Gong }
2450130c7749SWen Gong
ath10k_htt_rx_proc_rx_ind_hl(struct ath10k_htt * htt,struct htt_rx_indication_hl * rx,struct sk_buff * skb,enum htt_rx_pn_check_type check_pn_type,enum htt_rx_tkip_demic_type tkip_mic_type)2451f88d4934SErik Stromdahl static bool ath10k_htt_rx_proc_rx_ind_hl(struct ath10k_htt *htt,
2452f88d4934SErik Stromdahl struct htt_rx_indication_hl *rx,
2453130c7749SWen Gong struct sk_buff *skb,
2454130c7749SWen Gong enum htt_rx_pn_check_type check_pn_type,
2455130c7749SWen Gong enum htt_rx_tkip_demic_type tkip_mic_type)
2456f88d4934SErik Stromdahl {
2457f88d4934SErik Stromdahl struct ath10k *ar = htt->ar;
2458f88d4934SErik Stromdahl struct ath10k_peer *peer;
2459f88d4934SErik Stromdahl struct htt_rx_indication_mpdu_range *mpdu_ranges;
2460f88d4934SErik Stromdahl struct fw_rx_desc_hl *fw_desc;
2461db8deae0SWen Gong enum htt_txrx_sec_cast_type sec_index;
2462db8deae0SWen Gong enum htt_security_types sec_type;
2463db8deae0SWen Gong union htt_rx_pn_t new_pn = {0};
2464db8deae0SWen Gong struct htt_hl_rx_desc *rx_desc;
2465f88d4934SErik Stromdahl struct ieee80211_hdr *hdr;
2466f88d4934SErik Stromdahl struct ieee80211_rx_status *rx_status;
2467f88d4934SErik Stromdahl u16 peer_id;
2468f88d4934SErik Stromdahl u8 rx_desc_len;
2469f88d4934SErik Stromdahl int num_mpdu_ranges;
2470f88d4934SErik Stromdahl size_t tot_hdr_len;
2471f88d4934SErik Stromdahl struct ieee80211_channel *ch;
2472db8deae0SWen Gong bool pn_invalid, qos, first_msdu;
2473db8deae0SWen Gong u32 tid, rx_desc_info;
2474f88d4934SErik Stromdahl
2475f88d4934SErik Stromdahl peer_id = __le16_to_cpu(rx->hdr.peer_id);
2476db8deae0SWen Gong tid = MS(rx->hdr.info0, HTT_RX_INDICATION_INFO0_EXT_TID);
2477f88d4934SErik Stromdahl
2478f88d4934SErik Stromdahl spin_lock_bh(&ar->data_lock);
2479f88d4934SErik Stromdahl peer = ath10k_peer_find_by_id(ar, peer_id);
2480f88d4934SErik Stromdahl spin_unlock_bh(&ar->data_lock);
2481bd1a4ac5SWen Gong if (!peer && peer_id != HTT_INVALID_PEERID)
2482f88d4934SErik Stromdahl ath10k_warn(ar, "Got RX ind from invalid peer: %u\n", peer_id);
2483f88d4934SErik Stromdahl
2484db8deae0SWen Gong if (!peer)
2485db8deae0SWen Gong return true;
2486db8deae0SWen Gong
2487f88d4934SErik Stromdahl num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1),
2488f88d4934SErik Stromdahl HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES);
2489f88d4934SErik Stromdahl mpdu_ranges = htt_rx_ind_get_mpdu_ranges_hl(rx);
2490f88d4934SErik Stromdahl fw_desc = &rx->fw_desc;
2491f88d4934SErik Stromdahl rx_desc_len = fw_desc->len;
2492f88d4934SErik Stromdahl
2493079a108fSWen Gong if (fw_desc->u.bits.discard) {
2494079a108fSWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT, "htt discard mpdu\n");
2495079a108fSWen Gong goto err;
2496079a108fSWen Gong }
2497079a108fSWen Gong
2498f88d4934SErik Stromdahl /* I have not yet seen any case where num_mpdu_ranges > 1.
2499f88d4934SErik Stromdahl * qcacld does not seem handle that case either, so we introduce the
2500b8a71b95SJeff Johnson * same limitation here as well.
2501f88d4934SErik Stromdahl */
2502f88d4934SErik Stromdahl if (num_mpdu_ranges > 1)
2503f88d4934SErik Stromdahl ath10k_warn(ar,
2504f88d4934SErik Stromdahl "Unsupported number of MPDU ranges: %d, ignoring all but the first\n",
2505f88d4934SErik Stromdahl num_mpdu_ranges);
2506f88d4934SErik Stromdahl
2507f88d4934SErik Stromdahl if (mpdu_ranges->mpdu_range_status !=
250847ed1b4eSWen Gong HTT_RX_IND_MPDU_STATUS_OK &&
250947ed1b4eSWen Gong mpdu_ranges->mpdu_range_status !=
251047ed1b4eSWen Gong HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR) {
25115d246729SWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT, "htt mpdu_range_status %d\n",
2512f88d4934SErik Stromdahl mpdu_ranges->mpdu_range_status);
2513f88d4934SErik Stromdahl goto err;
2514f88d4934SErik Stromdahl }
2515f88d4934SErik Stromdahl
2516db8deae0SWen Gong rx_desc = (struct htt_hl_rx_desc *)&rx->mpdu_ranges[num_mpdu_ranges];
2517db8deae0SWen Gong rx_desc_info = __le32_to_cpu(rx_desc->info);
2518db8deae0SWen Gong
2519db8deae0SWen Gong if (MS(rx_desc_info, HTT_RX_DESC_HL_INFO_MCAST_BCAST))
2520db8deae0SWen Gong sec_index = HTT_TXRX_SEC_MCAST;
2521db8deae0SWen Gong else
2522db8deae0SWen Gong sec_index = HTT_TXRX_SEC_UCAST;
2523db8deae0SWen Gong
2524db8deae0SWen Gong sec_type = peer->rx_pn[sec_index].sec_type;
2525db8deae0SWen Gong first_msdu = rx->fw_desc.flags & FW_RX_DESC_FLAGS_FIRST_MSDU;
2526db8deae0SWen Gong
2527db8deae0SWen Gong ath10k_htt_rx_mpdu_desc_pn_hl(rx_desc, &new_pn, peer->rx_pn[sec_index].pn_len);
2528db8deae0SWen Gong
2529db8deae0SWen Gong if (check_pn_type == HTT_RX_PN_CHECK && tid >= IEEE80211_NUM_TIDS) {
2530ef9cc0c4SClaire Chang spin_lock_bh(&ar->data_lock);
2531ef9cc0c4SClaire Chang pn_invalid = ath10k_htt_rx_pn_check_replay_hl(ar, peer, rx);
2532ef9cc0c4SClaire Chang spin_unlock_bh(&ar->data_lock);
2533db8deae0SWen Gong
2534ef9cc0c4SClaire Chang if (pn_invalid)
2535130c7749SWen Gong goto err;
2536ef9cc0c4SClaire Chang }
2537130c7749SWen Gong
2538f88d4934SErik Stromdahl /* Strip off all headers before the MAC header before delivery to
2539f88d4934SErik Stromdahl * mac80211
2540f88d4934SErik Stromdahl */
2541f88d4934SErik Stromdahl tot_hdr_len = sizeof(struct htt_resp_hdr) + sizeof(rx->hdr) +
2542f88d4934SErik Stromdahl sizeof(rx->ppdu) + sizeof(rx->prefix) +
2543f88d4934SErik Stromdahl sizeof(rx->fw_desc) +
2544f88d4934SErik Stromdahl sizeof(*mpdu_ranges) * num_mpdu_ranges + rx_desc_len;
2545130c7749SWen Gong
2546f88d4934SErik Stromdahl skb_pull(skb, tot_hdr_len);
2547f88d4934SErik Stromdahl
2548f88d4934SErik Stromdahl hdr = (struct ieee80211_hdr *)skb->data;
2549db8deae0SWen Gong qos = ieee80211_is_data_qos(hdr->frame_control);
255067654b26SWen Gong
2551f88d4934SErik Stromdahl rx_status = IEEE80211_SKB_RXCB(skb);
255267654b26SWen Gong memset(rx_status, 0, sizeof(*rx_status));
255367654b26SWen Gong
25547d444522SAlagu Sankar if (rx->ppdu.combined_rssi == 0) {
25557d444522SAlagu Sankar /* SDIO firmware does not provide signal */
25567d444522SAlagu Sankar rx_status->signal = 0;
25577d444522SAlagu Sankar rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL;
25587d444522SAlagu Sankar } else {
2559f88d4934SErik Stromdahl rx_status->signal = ATH10K_DEFAULT_NOISE_FLOOR +
2560f88d4934SErik Stromdahl rx->ppdu.combined_rssi;
2561f88d4934SErik Stromdahl rx_status->flag &= ~RX_FLAG_NO_SIGNAL_VAL;
25627d444522SAlagu Sankar }
2563f88d4934SErik Stromdahl
2564f88d4934SErik Stromdahl spin_lock_bh(&ar->data_lock);
2565f88d4934SErik Stromdahl ch = ar->scan_channel;
2566f88d4934SErik Stromdahl if (!ch)
2567f88d4934SErik Stromdahl ch = ar->rx_channel;
2568f88d4934SErik Stromdahl if (!ch)
2569f88d4934SErik Stromdahl ch = ath10k_htt_rx_h_any_channel(ar);
2570f88d4934SErik Stromdahl if (!ch)
2571f88d4934SErik Stromdahl ch = ar->tgt_oper_chan;
2572f88d4934SErik Stromdahl spin_unlock_bh(&ar->data_lock);
2573f88d4934SErik Stromdahl
2574f88d4934SErik Stromdahl if (ch) {
2575f88d4934SErik Stromdahl rx_status->band = ch->band;
2576f88d4934SErik Stromdahl rx_status->freq = ch->center_freq;
2577f88d4934SErik Stromdahl }
2578f88d4934SErik Stromdahl if (rx->fw_desc.flags & FW_RX_DESC_FLAGS_LAST_MSDU)
2579f88d4934SErik Stromdahl rx_status->flag &= ~RX_FLAG_AMSDU_MORE;
2580f88d4934SErik Stromdahl else
2581f88d4934SErik Stromdahl rx_status->flag |= RX_FLAG_AMSDU_MORE;
2582f88d4934SErik Stromdahl
2583f88d4934SErik Stromdahl /* Not entirely sure about this, but all frames from the chipset has
2584f88d4934SErik Stromdahl * the protected flag set even though they have already been decrypted.
2585f88d4934SErik Stromdahl * Unmasking this flag is necessary in order for mac80211 not to drop
2586f88d4934SErik Stromdahl * the frame.
2587f88d4934SErik Stromdahl * TODO: Verify this is always the case or find out a way to check
2588f88d4934SErik Stromdahl * if there has been hw decryption.
2589f88d4934SErik Stromdahl */
2590f88d4934SErik Stromdahl if (ieee80211_has_protected(hdr->frame_control)) {
2591f88d4934SErik Stromdahl hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED);
2592f88d4934SErik Stromdahl rx_status->flag |= RX_FLAG_DECRYPTED |
2593f88d4934SErik Stromdahl RX_FLAG_IV_STRIPPED |
2594f88d4934SErik Stromdahl RX_FLAG_MMIC_STRIPPED;
2595db8deae0SWen Gong
2596db8deae0SWen Gong if (tid < IEEE80211_NUM_TIDS &&
2597db8deae0SWen Gong first_msdu &&
2598db8deae0SWen Gong check_pn_type == HTT_RX_PN_CHECK &&
2599db8deae0SWen Gong (sec_type == HTT_SECURITY_AES_CCMP ||
2600db8deae0SWen Gong sec_type == HTT_SECURITY_TKIP ||
2601db8deae0SWen Gong sec_type == HTT_SECURITY_TKIP_NOMIC)) {
2602db8deae0SWen Gong u8 offset, *ivp, i;
2603db8deae0SWen Gong s8 keyidx = 0;
2604db8deae0SWen Gong __le64 pn48 = cpu_to_le64(new_pn.pn48);
2605db8deae0SWen Gong
2606db8deae0SWen Gong hdr = (struct ieee80211_hdr *)skb->data;
2607db8deae0SWen Gong offset = ieee80211_hdrlen(hdr->frame_control);
2608db8deae0SWen Gong hdr->frame_control |= __cpu_to_le16(IEEE80211_FCTL_PROTECTED);
2609db8deae0SWen Gong rx_status->flag &= ~RX_FLAG_IV_STRIPPED;
2610db8deae0SWen Gong
2611db8deae0SWen Gong memmove(skb->data - IEEE80211_CCMP_HDR_LEN,
2612db8deae0SWen Gong skb->data, offset);
2613db8deae0SWen Gong skb_push(skb, IEEE80211_CCMP_HDR_LEN);
2614db8deae0SWen Gong ivp = skb->data + offset;
2615db8deae0SWen Gong memset(skb->data + offset, 0, IEEE80211_CCMP_HDR_LEN);
2616db8deae0SWen Gong /* Ext IV */
2617db8deae0SWen Gong ivp[IEEE80211_WEP_IV_LEN - 1] |= ATH10K_IEEE80211_EXTIV;
2618db8deae0SWen Gong
2619db8deae0SWen Gong for (i = 0; i < ARRAY_SIZE(peer->keys); i++) {
2620db8deae0SWen Gong if (peer->keys[i] &&
2621db8deae0SWen Gong peer->keys[i]->flags & IEEE80211_KEY_FLAG_PAIRWISE)
2622db8deae0SWen Gong keyidx = peer->keys[i]->keyidx;
2623db8deae0SWen Gong }
2624db8deae0SWen Gong
2625db8deae0SWen Gong /* Key ID */
2626db8deae0SWen Gong ivp[IEEE80211_WEP_IV_LEN - 1] |= keyidx << 6;
2627db8deae0SWen Gong
2628db8deae0SWen Gong if (sec_type == HTT_SECURITY_AES_CCMP) {
2629db8deae0SWen Gong rx_status->flag |= RX_FLAG_MIC_STRIPPED;
2630db8deae0SWen Gong /* pn 0, pn 1 */
2631db8deae0SWen Gong memcpy(skb->data + offset, &pn48, 2);
2632db8deae0SWen Gong /* pn 1, pn 3 , pn 34 , pn 5 */
2633db8deae0SWen Gong memcpy(skb->data + offset + 4, ((u8 *)&pn48) + 2, 4);
2634db8deae0SWen Gong } else {
2635db8deae0SWen Gong rx_status->flag |= RX_FLAG_ICV_STRIPPED;
2636db8deae0SWen Gong /* TSC 0 */
2637db8deae0SWen Gong memcpy(skb->data + offset + 2, &pn48, 1);
2638db8deae0SWen Gong /* TSC 1 */
2639db8deae0SWen Gong memcpy(skb->data + offset, ((u8 *)&pn48) + 1, 1);
2640db8deae0SWen Gong /* TSC 2 , TSC 3 , TSC 4 , TSC 5*/
2641db8deae0SWen Gong memcpy(skb->data + offset + 4, ((u8 *)&pn48) + 2, 4);
2642db8deae0SWen Gong }
2643db8deae0SWen Gong }
2644f88d4934SErik Stromdahl }
2645f88d4934SErik Stromdahl
2646130c7749SWen Gong if (tkip_mic_type == HTT_RX_TKIP_MIC)
2647130c7749SWen Gong rx_status->flag &= ~RX_FLAG_IV_STRIPPED &
2648130c7749SWen Gong ~RX_FLAG_MMIC_STRIPPED;
2649130c7749SWen Gong
265047ed1b4eSWen Gong if (mpdu_ranges->mpdu_range_status == HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR)
265147ed1b4eSWen Gong rx_status->flag |= RX_FLAG_MMIC_ERROR;
265247ed1b4eSWen Gong
2653db8deae0SWen Gong if (!qos && tid < IEEE80211_NUM_TIDS) {
2654db8deae0SWen Gong u8 offset;
2655db8deae0SWen Gong __le16 qos_ctrl = 0;
2656db8deae0SWen Gong
2657db8deae0SWen Gong hdr = (struct ieee80211_hdr *)skb->data;
2658db8deae0SWen Gong offset = ieee80211_hdrlen(hdr->frame_control);
2659db8deae0SWen Gong
2660db8deae0SWen Gong hdr->frame_control |= cpu_to_le16(IEEE80211_STYPE_QOS_DATA);
2661db8deae0SWen Gong memmove(skb->data - IEEE80211_QOS_CTL_LEN, skb->data, offset);
2662db8deae0SWen Gong skb_push(skb, IEEE80211_QOS_CTL_LEN);
2663db8deae0SWen Gong qos_ctrl = cpu_to_le16(tid);
2664db8deae0SWen Gong memcpy(skb->data + offset, &qos_ctrl, IEEE80211_QOS_CTL_LEN);
2665db8deae0SWen Gong }
2666db8deae0SWen Gong
2667cfee8793SWen Gong if (ar->napi.dev)
2668cfee8793SWen Gong ieee80211_rx_napi(ar->hw, NULL, skb, &ar->napi);
2669cfee8793SWen Gong else
2670f88d4934SErik Stromdahl ieee80211_rx_ni(ar->hw, skb);
2671f88d4934SErik Stromdahl
2672f88d4934SErik Stromdahl /* We have delivered the skb to the upper layers (mac80211) so we
2673f88d4934SErik Stromdahl * must not free it.
2674f88d4934SErik Stromdahl */
2675f88d4934SErik Stromdahl return false;
2676f88d4934SErik Stromdahl err:
2677f88d4934SErik Stromdahl /* Tell the caller that it must free the skb since we have not
2678f88d4934SErik Stromdahl * consumed it
2679f88d4934SErik Stromdahl */
2680f88d4934SErik Stromdahl return true;
2681f88d4934SErik Stromdahl }
2682f88d4934SErik Stromdahl
ath10k_htt_rx_frag_tkip_decap_nomic(struct sk_buff * skb,u16 head_len,u16 hdr_len)268333f97472SWen Gong static int ath10k_htt_rx_frag_tkip_decap_nomic(struct sk_buff *skb,
268433f97472SWen Gong u16 head_len,
268533f97472SWen Gong u16 hdr_len)
268633f97472SWen Gong {
268733f97472SWen Gong u8 *ivp, *orig_hdr;
268833f97472SWen Gong
268933f97472SWen Gong orig_hdr = skb->data;
269033f97472SWen Gong ivp = orig_hdr + hdr_len + head_len;
269133f97472SWen Gong
269233f97472SWen Gong /* the ExtIV bit is always set to 1 for TKIP */
269333f97472SWen Gong if (!(ivp[IEEE80211_WEP_IV_LEN - 1] & ATH10K_IEEE80211_EXTIV))
269433f97472SWen Gong return -EINVAL;
269533f97472SWen Gong
269633f97472SWen Gong memmove(orig_hdr + IEEE80211_TKIP_IV_LEN, orig_hdr, head_len + hdr_len);
269733f97472SWen Gong skb_pull(skb, IEEE80211_TKIP_IV_LEN);
269833f97472SWen Gong skb_trim(skb, skb->len - ATH10K_IEEE80211_TKIP_MICLEN);
269933f97472SWen Gong return 0;
270033f97472SWen Gong }
270133f97472SWen Gong
ath10k_htt_rx_frag_tkip_decap_withmic(struct sk_buff * skb,u16 head_len,u16 hdr_len)270233f97472SWen Gong static int ath10k_htt_rx_frag_tkip_decap_withmic(struct sk_buff *skb,
270333f97472SWen Gong u16 head_len,
270433f97472SWen Gong u16 hdr_len)
270533f97472SWen Gong {
270633f97472SWen Gong u8 *ivp, *orig_hdr;
270733f97472SWen Gong
270833f97472SWen Gong orig_hdr = skb->data;
270933f97472SWen Gong ivp = orig_hdr + hdr_len + head_len;
271033f97472SWen Gong
271133f97472SWen Gong /* the ExtIV bit is always set to 1 for TKIP */
271233f97472SWen Gong if (!(ivp[IEEE80211_WEP_IV_LEN - 1] & ATH10K_IEEE80211_EXTIV))
271333f97472SWen Gong return -EINVAL;
271433f97472SWen Gong
271533f97472SWen Gong memmove(orig_hdr + IEEE80211_TKIP_IV_LEN, orig_hdr, head_len + hdr_len);
271633f97472SWen Gong skb_pull(skb, IEEE80211_TKIP_IV_LEN);
271733f97472SWen Gong skb_trim(skb, skb->len - IEEE80211_TKIP_ICV_LEN);
271833f97472SWen Gong return 0;
271933f97472SWen Gong }
272033f97472SWen Gong
ath10k_htt_rx_frag_ccmp_decap(struct sk_buff * skb,u16 head_len,u16 hdr_len)272133f97472SWen Gong static int ath10k_htt_rx_frag_ccmp_decap(struct sk_buff *skb,
272233f97472SWen Gong u16 head_len,
272333f97472SWen Gong u16 hdr_len)
272433f97472SWen Gong {
272533f97472SWen Gong u8 *ivp, *orig_hdr;
272633f97472SWen Gong
272733f97472SWen Gong orig_hdr = skb->data;
272833f97472SWen Gong ivp = orig_hdr + hdr_len + head_len;
272933f97472SWen Gong
273033f97472SWen Gong /* the ExtIV bit is always set to 1 for CCMP */
273133f97472SWen Gong if (!(ivp[IEEE80211_WEP_IV_LEN - 1] & ATH10K_IEEE80211_EXTIV))
273233f97472SWen Gong return -EINVAL;
273333f97472SWen Gong
273433f97472SWen Gong skb_trim(skb, skb->len - IEEE80211_CCMP_MIC_LEN);
273533f97472SWen Gong memmove(orig_hdr + IEEE80211_CCMP_HDR_LEN, orig_hdr, head_len + hdr_len);
273633f97472SWen Gong skb_pull(skb, IEEE80211_CCMP_HDR_LEN);
273733f97472SWen Gong return 0;
273833f97472SWen Gong }
273933f97472SWen Gong
ath10k_htt_rx_frag_wep_decap(struct sk_buff * skb,u16 head_len,u16 hdr_len)274033f97472SWen Gong static int ath10k_htt_rx_frag_wep_decap(struct sk_buff *skb,
274133f97472SWen Gong u16 head_len,
274233f97472SWen Gong u16 hdr_len)
274333f97472SWen Gong {
274433f97472SWen Gong u8 *orig_hdr;
274533f97472SWen Gong
274633f97472SWen Gong orig_hdr = skb->data;
274733f97472SWen Gong
274833f97472SWen Gong memmove(orig_hdr + IEEE80211_WEP_IV_LEN,
274933f97472SWen Gong orig_hdr, head_len + hdr_len);
275033f97472SWen Gong skb_pull(skb, IEEE80211_WEP_IV_LEN);
275133f97472SWen Gong skb_trim(skb, skb->len - IEEE80211_WEP_ICV_LEN);
275233f97472SWen Gong return 0;
275333f97472SWen Gong }
275433f97472SWen Gong
ath10k_htt_rx_proc_rx_frag_ind_hl(struct ath10k_htt * htt,struct htt_rx_fragment_indication * rx,struct sk_buff * skb)275533f97472SWen Gong static bool ath10k_htt_rx_proc_rx_frag_ind_hl(struct ath10k_htt *htt,
275633f97472SWen Gong struct htt_rx_fragment_indication *rx,
275733f97472SWen Gong struct sk_buff *skb)
275833f97472SWen Gong {
275933f97472SWen Gong struct ath10k *ar = htt->ar;
276033f97472SWen Gong enum htt_rx_tkip_demic_type tkip_mic = HTT_RX_NON_TKIP_MIC;
276133f97472SWen Gong enum htt_txrx_sec_cast_type sec_index;
276233f97472SWen Gong struct htt_rx_indication_hl *rx_hl;
276333f97472SWen Gong enum htt_security_types sec_type;
276433f97472SWen Gong u32 tid, frag, seq, rx_desc_info;
276533f97472SWen Gong union htt_rx_pn_t new_pn = {0};
276633f97472SWen Gong struct htt_hl_rx_desc *rx_desc;
276733f97472SWen Gong u16 peer_id, sc, hdr_space;
276833f97472SWen Gong union htt_rx_pn_t *last_pn;
276933f97472SWen Gong struct ieee80211_hdr *hdr;
277033f97472SWen Gong int ret, num_mpdu_ranges;
277133f97472SWen Gong struct ath10k_peer *peer;
277233f97472SWen Gong struct htt_resp *resp;
277333f97472SWen Gong size_t tot_hdr_len;
277433f97472SWen Gong
277533f97472SWen Gong resp = (struct htt_resp *)(skb->data + HTT_RX_FRAG_IND_INFO0_HEADER_LEN);
277633f97472SWen Gong skb_pull(skb, HTT_RX_FRAG_IND_INFO0_HEADER_LEN);
277733f97472SWen Gong skb_trim(skb, skb->len - FCS_LEN);
277833f97472SWen Gong
277933f97472SWen Gong peer_id = __le16_to_cpu(rx->peer_id);
278033f97472SWen Gong rx_hl = (struct htt_rx_indication_hl *)(&resp->rx_ind_hl);
278133f97472SWen Gong
278233f97472SWen Gong spin_lock_bh(&ar->data_lock);
278333f97472SWen Gong peer = ath10k_peer_find_by_id(ar, peer_id);
278433f97472SWen Gong if (!peer) {
278533f97472SWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT, "invalid peer: %u\n", peer_id);
278633f97472SWen Gong goto err;
278733f97472SWen Gong }
278833f97472SWen Gong
278933f97472SWen Gong num_mpdu_ranges = MS(__le32_to_cpu(rx_hl->hdr.info1),
279033f97472SWen Gong HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES);
279133f97472SWen Gong
279233f97472SWen Gong tot_hdr_len = sizeof(struct htt_resp_hdr) +
279333f97472SWen Gong sizeof(rx_hl->hdr) +
279433f97472SWen Gong sizeof(rx_hl->ppdu) +
279533f97472SWen Gong sizeof(rx_hl->prefix) +
279633f97472SWen Gong sizeof(rx_hl->fw_desc) +
279733f97472SWen Gong sizeof(struct htt_rx_indication_mpdu_range) * num_mpdu_ranges;
279833f97472SWen Gong
279933f97472SWen Gong tid = MS(rx_hl->hdr.info0, HTT_RX_INDICATION_INFO0_EXT_TID);
280033f97472SWen Gong rx_desc = (struct htt_hl_rx_desc *)(skb->data + tot_hdr_len);
280133f97472SWen Gong rx_desc_info = __le32_to_cpu(rx_desc->info);
280233f97472SWen Gong
280340e7462dSWen Gong hdr = (struct ieee80211_hdr *)((u8 *)rx_desc + rx_hl->fw_desc.len);
280440e7462dSWen Gong
280540e7462dSWen Gong if (is_multicast_ether_addr(hdr->addr1)) {
280640e7462dSWen Gong /* Discard the fragment with multicast DA */
280740e7462dSWen Gong goto err;
280840e7462dSWen Gong }
280940e7462dSWen Gong
281033f97472SWen Gong if (!MS(rx_desc_info, HTT_RX_DESC_HL_INFO_ENCRYPTED)) {
281133f97472SWen Gong spin_unlock_bh(&ar->data_lock);
281233f97472SWen Gong return ath10k_htt_rx_proc_rx_ind_hl(htt, &resp->rx_ind_hl, skb,
281333f97472SWen Gong HTT_RX_NON_PN_CHECK,
281433f97472SWen Gong HTT_RX_NON_TKIP_MIC);
281533f97472SWen Gong }
281633f97472SWen Gong
281733f97472SWen Gong if (ieee80211_has_retry(hdr->frame_control))
281833f97472SWen Gong goto err;
281933f97472SWen Gong
282033f97472SWen Gong hdr_space = ieee80211_hdrlen(hdr->frame_control);
282133f97472SWen Gong sc = __le16_to_cpu(hdr->seq_ctrl);
2822a60c0401SZhi-Jun You seq = IEEE80211_SEQ_TO_SN(sc);
282333f97472SWen Gong frag = sc & IEEE80211_SCTL_FRAG;
282433f97472SWen Gong
282533f97472SWen Gong sec_index = MS(rx_desc_info, HTT_RX_DESC_HL_INFO_MCAST_BCAST) ?
282633f97472SWen Gong HTT_TXRX_SEC_MCAST : HTT_TXRX_SEC_UCAST;
282733f97472SWen Gong sec_type = peer->rx_pn[sec_index].sec_type;
282833f97472SWen Gong ath10k_htt_rx_mpdu_desc_pn_hl(rx_desc, &new_pn, peer->rx_pn[sec_index].pn_len);
282933f97472SWen Gong
283033f97472SWen Gong switch (sec_type) {
283133f97472SWen Gong case HTT_SECURITY_TKIP:
283233f97472SWen Gong tkip_mic = HTT_RX_TKIP_MIC;
283333f97472SWen Gong ret = ath10k_htt_rx_frag_tkip_decap_withmic(skb,
283433f97472SWen Gong tot_hdr_len +
283533f97472SWen Gong rx_hl->fw_desc.len,
283633f97472SWen Gong hdr_space);
283733f97472SWen Gong if (ret)
283833f97472SWen Gong goto err;
283933f97472SWen Gong break;
284033f97472SWen Gong case HTT_SECURITY_TKIP_NOMIC:
284133f97472SWen Gong ret = ath10k_htt_rx_frag_tkip_decap_nomic(skb,
284233f97472SWen Gong tot_hdr_len +
284333f97472SWen Gong rx_hl->fw_desc.len,
284433f97472SWen Gong hdr_space);
284533f97472SWen Gong if (ret)
284633f97472SWen Gong goto err;
284733f97472SWen Gong break;
284833f97472SWen Gong case HTT_SECURITY_AES_CCMP:
284933f97472SWen Gong ret = ath10k_htt_rx_frag_ccmp_decap(skb,
285033f97472SWen Gong tot_hdr_len + rx_hl->fw_desc.len,
285133f97472SWen Gong hdr_space);
285233f97472SWen Gong if (ret)
285333f97472SWen Gong goto err;
285433f97472SWen Gong break;
285533f97472SWen Gong case HTT_SECURITY_WEP128:
285633f97472SWen Gong case HTT_SECURITY_WEP104:
285733f97472SWen Gong case HTT_SECURITY_WEP40:
285833f97472SWen Gong ret = ath10k_htt_rx_frag_wep_decap(skb,
285933f97472SWen Gong tot_hdr_len + rx_hl->fw_desc.len,
286033f97472SWen Gong hdr_space);
286133f97472SWen Gong if (ret)
286233f97472SWen Gong goto err;
286333f97472SWen Gong break;
286433f97472SWen Gong default:
286533f97472SWen Gong break;
286633f97472SWen Gong }
286733f97472SWen Gong
286833f97472SWen Gong resp = (struct htt_resp *)(skb->data);
286933f97472SWen Gong
287033f97472SWen Gong if (sec_type != HTT_SECURITY_AES_CCMP &&
287133f97472SWen Gong sec_type != HTT_SECURITY_TKIP &&
287233f97472SWen Gong sec_type != HTT_SECURITY_TKIP_NOMIC) {
287333f97472SWen Gong spin_unlock_bh(&ar->data_lock);
287433f97472SWen Gong return ath10k_htt_rx_proc_rx_ind_hl(htt, &resp->rx_ind_hl, skb,
287533f97472SWen Gong HTT_RX_NON_PN_CHECK,
287633f97472SWen Gong HTT_RX_NON_TKIP_MIC);
287733f97472SWen Gong }
287833f97472SWen Gong
287933f97472SWen Gong last_pn = &peer->frag_tids_last_pn[tid];
288033f97472SWen Gong
288133f97472SWen Gong if (frag == 0) {
288233f97472SWen Gong if (ath10k_htt_rx_pn_check_replay_hl(ar, peer, &resp->rx_ind_hl))
288333f97472SWen Gong goto err;
288433f97472SWen Gong
288533f97472SWen Gong last_pn->pn48 = new_pn.pn48;
288633f97472SWen Gong peer->frag_tids_seq[tid] = seq;
288733f97472SWen Gong } else if (sec_type == HTT_SECURITY_AES_CCMP) {
288833f97472SWen Gong if (seq != peer->frag_tids_seq[tid])
288933f97472SWen Gong goto err;
289033f97472SWen Gong
289133f97472SWen Gong if (new_pn.pn48 != last_pn->pn48 + 1)
289233f97472SWen Gong goto err;
289333f97472SWen Gong
289433f97472SWen Gong last_pn->pn48 = new_pn.pn48;
289533f97472SWen Gong last_pn = &peer->tids_last_pn[tid];
289633f97472SWen Gong last_pn->pn48 = new_pn.pn48;
289733f97472SWen Gong }
289833f97472SWen Gong
289933f97472SWen Gong spin_unlock_bh(&ar->data_lock);
290033f97472SWen Gong
290133f97472SWen Gong return ath10k_htt_rx_proc_rx_ind_hl(htt, &resp->rx_ind_hl, skb,
290233f97472SWen Gong HTT_RX_NON_PN_CHECK, tkip_mic);
290333f97472SWen Gong
290433f97472SWen Gong err:
290533f97472SWen Gong spin_unlock_bh(&ar->data_lock);
290633f97472SWen Gong
290733f97472SWen Gong /* Tell the caller that it must free the skb since we have not
290833f97472SWen Gong * consumed it
290933f97472SWen Gong */
291033f97472SWen Gong return true;
291133f97472SWen Gong }
291233f97472SWen Gong
ath10k_htt_rx_proc_rx_ind_ll(struct ath10k_htt * htt,struct htt_rx_indication * rx)2913f88d4934SErik Stromdahl static void ath10k_htt_rx_proc_rx_ind_ll(struct ath10k_htt *htt,
29145e3dd157SKalle Valo struct htt_rx_indication *rx)
29155e3dd157SKalle Valo {
29167aa7a72aSMichal Kazior struct ath10k *ar = htt->ar;
29175e3dd157SKalle Valo struct htt_rx_indication_mpdu_range *mpdu_ranges;
29185e3dd157SKalle Valo int num_mpdu_ranges;
291918235664SRajkumar Manoharan int i, mpdu_count = 0;
2920caee728aSVasanthakumar Thiagarajan u16 peer_id;
2921caee728aSVasanthakumar Thiagarajan u8 tid;
29225e3dd157SKalle Valo
29235e3dd157SKalle Valo num_mpdu_ranges = MS(__le32_to_cpu(rx->hdr.info1),
29245e3dd157SKalle Valo HTT_RX_INDICATION_INFO1_NUM_MPDU_RANGES);
2925caee728aSVasanthakumar Thiagarajan peer_id = __le16_to_cpu(rx->hdr.peer_id);
2926caee728aSVasanthakumar Thiagarajan tid = MS(rx->hdr.info0, HTT_RX_INDICATION_INFO0_EXT_TID);
2927caee728aSVasanthakumar Thiagarajan
29285e3dd157SKalle Valo mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
29295e3dd157SKalle Valo
29307aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
293135b50e70SGustavo A. R. Silva rx, struct_size(rx, mpdu_ranges, num_mpdu_ranges));
29325e3dd157SKalle Valo
2933d540690dSMichal Kazior for (i = 0; i < num_mpdu_ranges; i++)
2934d540690dSMichal Kazior mpdu_count += mpdu_ranges[i].mpdu_count;
2935d540690dSMichal Kazior
29363128b3d8SRajkumar Manoharan atomic_add(mpdu_count, &htt->num_mpdus_ready);
2937caee728aSVasanthakumar Thiagarajan
2938caee728aSVasanthakumar Thiagarajan ath10k_sta_update_rx_tid_stats_ampdu(ar, peer_id, tid, mpdu_ranges,
2939caee728aSVasanthakumar Thiagarajan num_mpdu_ranges);
29405e3dd157SKalle Valo }
29415e3dd157SKalle Valo
ath10k_htt_rx_tx_compl_ind(struct ath10k * ar,struct sk_buff * skb)294259465fe4SRajkumar Manoharan static void ath10k_htt_rx_tx_compl_ind(struct ath10k *ar,
29436c5151a9SMichal Kazior struct sk_buff *skb)
29446c5151a9SMichal Kazior {
29456c5151a9SMichal Kazior struct ath10k_htt *htt = &ar->htt;
29466c5151a9SMichal Kazior struct htt_resp *resp = (struct htt_resp *)skb->data;
29476c5151a9SMichal Kazior struct htt_tx_done tx_done = {};
29486c5151a9SMichal Kazior int status = MS(resp->data_tx_completion.flags, HTT_DATA_TX_STATUS);
2949c7fd8d23SBalaji Pothunoori __le16 msdu_id, *msdus;
2950c7fd8d23SBalaji Pothunoori bool rssi_enabled = false;
2951bb31b7cbSManikanta Pubbisetty u8 msdu_count = 0, num_airtime_records, tid;
29526ddc3860SAbhishek Ambure int i, htt_pad = 0;
2953bb31b7cbSManikanta Pubbisetty struct htt_data_tx_compl_ppdu_dur *ppdu_info;
2954bb31b7cbSManikanta Pubbisetty struct ath10k_peer *peer;
2955bb31b7cbSManikanta Pubbisetty u16 ppdu_info_offset = 0, peer_id;
2956bb31b7cbSManikanta Pubbisetty u32 tx_duration;
29576c5151a9SMichal Kazior
29586c5151a9SMichal Kazior switch (status) {
29596c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_NO_ACK:
296059465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_NOACK;
29616c5151a9SMichal Kazior break;
29626c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_OK:
296359465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_ACK;
29646c5151a9SMichal Kazior break;
29656c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_DISCARD:
29666c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_POSTPONE:
29676c5151a9SMichal Kazior case HTT_DATA_TX_STATUS_DOWNLOAD_FAIL:
296859465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_DISCARD;
29696c5151a9SMichal Kazior break;
29706c5151a9SMichal Kazior default:
29717aa7a72aSMichal Kazior ath10k_warn(ar, "unhandled tx completion status %d\n", status);
297259465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_DISCARD;
29736c5151a9SMichal Kazior break;
29746c5151a9SMichal Kazior }
29756c5151a9SMichal Kazior
29767aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx completion num_msdus %d\n",
29776c5151a9SMichal Kazior resp->data_tx_completion.num_msdus);
29786c5151a9SMichal Kazior
2979c7fd8d23SBalaji Pothunoori msdu_count = resp->data_tx_completion.num_msdus;
2980bb31b7cbSManikanta Pubbisetty msdus = resp->data_tx_completion.msdus;
29816ddc3860SAbhishek Ambure rssi_enabled = ath10k_is_rssi_enable(&ar->hw_params, resp);
2982c7fd8d23SBalaji Pothunoori
29836ddc3860SAbhishek Ambure if (rssi_enabled)
29846ddc3860SAbhishek Ambure htt_pad = ath10k_tx_data_rssi_get_pad_bytes(&ar->hw_params,
29856ddc3860SAbhishek Ambure resp);
2986c7fd8d23SBalaji Pothunoori
2987c7fd8d23SBalaji Pothunoori for (i = 0; i < msdu_count; i++) {
2988c7fd8d23SBalaji Pothunoori msdu_id = msdus[i];
29896c5151a9SMichal Kazior tx_done.msdu_id = __le16_to_cpu(msdu_id);
299059465fe4SRajkumar Manoharan
2991c7fd8d23SBalaji Pothunoori if (rssi_enabled) {
2992c7fd8d23SBalaji Pothunoori /* Total no of MSDUs should be even,
2993c7fd8d23SBalaji Pothunoori * if odd MSDUs are sent firmware fills
2994c7fd8d23SBalaji Pothunoori * last msdu id with 0xffff
2995c7fd8d23SBalaji Pothunoori */
2996c7fd8d23SBalaji Pothunoori if (msdu_count & 0x01) {
29976ddc3860SAbhishek Ambure msdu_id = msdus[msdu_count + i + 1 + htt_pad];
2998c7fd8d23SBalaji Pothunoori tx_done.ack_rssi = __le16_to_cpu(msdu_id);
2999c7fd8d23SBalaji Pothunoori } else {
30006ddc3860SAbhishek Ambure msdu_id = msdus[msdu_count + i + htt_pad];
3001c7fd8d23SBalaji Pothunoori tx_done.ack_rssi = __le16_to_cpu(msdu_id);
3002c7fd8d23SBalaji Pothunoori }
3003c7fd8d23SBalaji Pothunoori }
3004c7fd8d23SBalaji Pothunoori
300559465fe4SRajkumar Manoharan /* kfifo_put: In practice firmware shouldn't fire off per-CE
300659465fe4SRajkumar Manoharan * interrupt and main interrupt (MSI/-X range case) for the same
300759465fe4SRajkumar Manoharan * HTC service so it should be safe to use kfifo_put w/o lock.
300859465fe4SRajkumar Manoharan *
300959465fe4SRajkumar Manoharan * From kfifo_put() documentation:
301059465fe4SRajkumar Manoharan * Note that with only one concurrent reader and one concurrent
301159465fe4SRajkumar Manoharan * writer, you don't need extra locking to use these macro.
301259465fe4SRajkumar Manoharan */
3013e2a6b711SAlagu Sankar if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL) {
3014e2a6b711SAlagu Sankar ath10k_txrx_tx_unref(htt, &tx_done);
3015e2a6b711SAlagu Sankar } else if (!kfifo_put(&htt->txdone_fifo, tx_done)) {
301659465fe4SRajkumar Manoharan ath10k_warn(ar, "txdone fifo overrun, msdu_id %d status %d\n",
301759465fe4SRajkumar Manoharan tx_done.msdu_id, tx_done.status);
30186c5151a9SMichal Kazior ath10k_txrx_tx_unref(htt, &tx_done);
30196c5151a9SMichal Kazior }
30206c5151a9SMichal Kazior }
3021bb31b7cbSManikanta Pubbisetty
3022bb31b7cbSManikanta Pubbisetty if (!(resp->data_tx_completion.flags2 & HTT_TX_CMPL_FLAG_PPDU_DURATION_PRESENT))
3023bb31b7cbSManikanta Pubbisetty return;
3024bb31b7cbSManikanta Pubbisetty
3025bb31b7cbSManikanta Pubbisetty ppdu_info_offset = (msdu_count & 0x01) ? msdu_count + 1 : msdu_count;
3026bb31b7cbSManikanta Pubbisetty
3027bb31b7cbSManikanta Pubbisetty if (rssi_enabled)
3028bb31b7cbSManikanta Pubbisetty ppdu_info_offset += ppdu_info_offset;
3029bb31b7cbSManikanta Pubbisetty
3030bb31b7cbSManikanta Pubbisetty if (resp->data_tx_completion.flags2 &
3031bb31b7cbSManikanta Pubbisetty (HTT_TX_CMPL_FLAG_PPID_PRESENT | HTT_TX_CMPL_FLAG_PA_PRESENT))
3032bb31b7cbSManikanta Pubbisetty ppdu_info_offset += 2;
3033bb31b7cbSManikanta Pubbisetty
3034bb31b7cbSManikanta Pubbisetty ppdu_info = (struct htt_data_tx_compl_ppdu_dur *)&msdus[ppdu_info_offset];
3035bb31b7cbSManikanta Pubbisetty num_airtime_records = FIELD_GET(HTT_TX_COMPL_PPDU_DUR_INFO0_NUM_ENTRIES_MASK,
3036bb31b7cbSManikanta Pubbisetty __le32_to_cpu(ppdu_info->info0));
3037bb31b7cbSManikanta Pubbisetty
3038bb31b7cbSManikanta Pubbisetty for (i = 0; i < num_airtime_records; i++) {
3039bb31b7cbSManikanta Pubbisetty struct htt_data_tx_ppdu_dur *ppdu_dur;
3040bb31b7cbSManikanta Pubbisetty u32 info0;
3041bb31b7cbSManikanta Pubbisetty
3042bb31b7cbSManikanta Pubbisetty ppdu_dur = &ppdu_info->ppdu_dur[i];
3043bb31b7cbSManikanta Pubbisetty info0 = __le32_to_cpu(ppdu_dur->info0);
3044bb31b7cbSManikanta Pubbisetty
3045bb31b7cbSManikanta Pubbisetty peer_id = FIELD_GET(HTT_TX_PPDU_DUR_INFO0_PEER_ID_MASK,
3046bb31b7cbSManikanta Pubbisetty info0);
3047bb31b7cbSManikanta Pubbisetty rcu_read_lock();
3048bb31b7cbSManikanta Pubbisetty spin_lock_bh(&ar->data_lock);
3049bb31b7cbSManikanta Pubbisetty
3050bb31b7cbSManikanta Pubbisetty peer = ath10k_peer_find_by_id(ar, peer_id);
3051b10f3267SHauke Mehrtens if (!peer || !peer->sta) {
3052bb31b7cbSManikanta Pubbisetty spin_unlock_bh(&ar->data_lock);
3053bb31b7cbSManikanta Pubbisetty rcu_read_unlock();
3054bb31b7cbSManikanta Pubbisetty continue;
3055bb31b7cbSManikanta Pubbisetty }
3056bb31b7cbSManikanta Pubbisetty
3057f9680c75SYibo Zhao tid = FIELD_GET(HTT_TX_PPDU_DUR_INFO0_TID_MASK, info0) &
3058f9680c75SYibo Zhao IEEE80211_QOS_CTL_TID_MASK;
3059bb31b7cbSManikanta Pubbisetty tx_duration = __le32_to_cpu(ppdu_dur->tx_duration);
3060bb31b7cbSManikanta Pubbisetty
3061bb31b7cbSManikanta Pubbisetty ieee80211_sta_register_airtime(peer->sta, tid, tx_duration, 0);
3062bb31b7cbSManikanta Pubbisetty
3063bb31b7cbSManikanta Pubbisetty spin_unlock_bh(&ar->data_lock);
3064bb31b7cbSManikanta Pubbisetty rcu_read_unlock();
3065bb31b7cbSManikanta Pubbisetty }
306659465fe4SRajkumar Manoharan }
30676c5151a9SMichal Kazior
ath10k_htt_rx_addba(struct ath10k * ar,struct htt_resp * resp)3068aa5b4fbcSMichal Kazior static void ath10k_htt_rx_addba(struct ath10k *ar, struct htt_resp *resp)
3069aa5b4fbcSMichal Kazior {
3070aa5b4fbcSMichal Kazior struct htt_rx_addba *ev = &resp->rx_addba;
3071aa5b4fbcSMichal Kazior struct ath10k_peer *peer;
3072aa5b4fbcSMichal Kazior struct ath10k_vif *arvif;
3073aa5b4fbcSMichal Kazior u16 info0, tid, peer_id;
3074aa5b4fbcSMichal Kazior
3075aa5b4fbcSMichal Kazior info0 = __le16_to_cpu(ev->info0);
3076aa5b4fbcSMichal Kazior tid = MS(info0, HTT_RX_BA_INFO0_TID);
3077aa5b4fbcSMichal Kazior peer_id = MS(info0, HTT_RX_BA_INFO0_PEER_ID);
3078aa5b4fbcSMichal Kazior
30797aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT,
3080779750bbSTom Rix "htt rx addba tid %u peer_id %u size %u\n",
3081aa5b4fbcSMichal Kazior tid, peer_id, ev->window_size);
3082aa5b4fbcSMichal Kazior
3083aa5b4fbcSMichal Kazior spin_lock_bh(&ar->data_lock);
3084aa5b4fbcSMichal Kazior peer = ath10k_peer_find_by_id(ar, peer_id);
3085aa5b4fbcSMichal Kazior if (!peer) {
3086779750bbSTom Rix ath10k_warn(ar, "received addba event for invalid peer_id: %u\n",
3087aa5b4fbcSMichal Kazior peer_id);
3088aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock);
3089aa5b4fbcSMichal Kazior return;
3090aa5b4fbcSMichal Kazior }
3091aa5b4fbcSMichal Kazior
3092aa5b4fbcSMichal Kazior arvif = ath10k_get_arvif(ar, peer->vdev_id);
3093aa5b4fbcSMichal Kazior if (!arvif) {
30947aa7a72aSMichal Kazior ath10k_warn(ar, "received addba event for invalid vdev_id: %u\n",
3095aa5b4fbcSMichal Kazior peer->vdev_id);
3096aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock);
3097aa5b4fbcSMichal Kazior return;
3098aa5b4fbcSMichal Kazior }
3099aa5b4fbcSMichal Kazior
31007aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT,
3101779750bbSTom Rix "htt rx start rx ba session sta %pM tid %u size %u\n",
3102aa5b4fbcSMichal Kazior peer->addr, tid, ev->window_size);
3103aa5b4fbcSMichal Kazior
3104aa5b4fbcSMichal Kazior ieee80211_start_rx_ba_session_offl(arvif->vif, peer->addr, tid);
3105aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock);
3106aa5b4fbcSMichal Kazior }
3107aa5b4fbcSMichal Kazior
ath10k_htt_rx_delba(struct ath10k * ar,struct htt_resp * resp)3108aa5b4fbcSMichal Kazior static void ath10k_htt_rx_delba(struct ath10k *ar, struct htt_resp *resp)
3109aa5b4fbcSMichal Kazior {
3110aa5b4fbcSMichal Kazior struct htt_rx_delba *ev = &resp->rx_delba;
3111aa5b4fbcSMichal Kazior struct ath10k_peer *peer;
3112aa5b4fbcSMichal Kazior struct ath10k_vif *arvif;
3113aa5b4fbcSMichal Kazior u16 info0, tid, peer_id;
3114aa5b4fbcSMichal Kazior
3115aa5b4fbcSMichal Kazior info0 = __le16_to_cpu(ev->info0);
3116aa5b4fbcSMichal Kazior tid = MS(info0, HTT_RX_BA_INFO0_TID);
3117aa5b4fbcSMichal Kazior peer_id = MS(info0, HTT_RX_BA_INFO0_PEER_ID);
3118aa5b4fbcSMichal Kazior
31197aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT,
3120779750bbSTom Rix "htt rx delba tid %u peer_id %u\n",
3121aa5b4fbcSMichal Kazior tid, peer_id);
3122aa5b4fbcSMichal Kazior
3123aa5b4fbcSMichal Kazior spin_lock_bh(&ar->data_lock);
3124aa5b4fbcSMichal Kazior peer = ath10k_peer_find_by_id(ar, peer_id);
3125aa5b4fbcSMichal Kazior if (!peer) {
3126779750bbSTom Rix ath10k_warn(ar, "received addba event for invalid peer_id: %u\n",
3127aa5b4fbcSMichal Kazior peer_id);
3128aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock);
3129aa5b4fbcSMichal Kazior return;
3130aa5b4fbcSMichal Kazior }
3131aa5b4fbcSMichal Kazior
3132aa5b4fbcSMichal Kazior arvif = ath10k_get_arvif(ar, peer->vdev_id);
3133aa5b4fbcSMichal Kazior if (!arvif) {
31347aa7a72aSMichal Kazior ath10k_warn(ar, "received addba event for invalid vdev_id: %u\n",
3135aa5b4fbcSMichal Kazior peer->vdev_id);
3136aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock);
3137aa5b4fbcSMichal Kazior return;
3138aa5b4fbcSMichal Kazior }
3139aa5b4fbcSMichal Kazior
31407aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT,
3141779750bbSTom Rix "htt rx stop rx ba session sta %pM tid %u\n",
3142aa5b4fbcSMichal Kazior peer->addr, tid);
3143aa5b4fbcSMichal Kazior
3144aa5b4fbcSMichal Kazior ieee80211_stop_rx_ba_session_offl(arvif->vif, peer->addr, tid);
3145aa5b4fbcSMichal Kazior spin_unlock_bh(&ar->data_lock);
3146aa5b4fbcSMichal Kazior }
3147aa5b4fbcSMichal Kazior
ath10k_htt_rx_extract_amsdu(struct ath10k_hw_params * hw,struct sk_buff_head * list,struct sk_buff_head * amsdu)31486bae9de6SFrancesco Magliocca static int ath10k_htt_rx_extract_amsdu(struct ath10k_hw_params *hw,
31496bae9de6SFrancesco Magliocca struct sk_buff_head *list,
3150e48e9c42SKalle Valo struct sk_buff_head *amsdu)
3151c545070eSMichal Kazior {
3152c545070eSMichal Kazior struct sk_buff *msdu;
3153c545070eSMichal Kazior struct htt_rx_desc *rxd;
31546bae9de6SFrancesco Magliocca struct rx_msdu_end_common *rxd_msdu_end_common;
3155c545070eSMichal Kazior
3156c545070eSMichal Kazior if (skb_queue_empty(list))
3157c545070eSMichal Kazior return -ENOBUFS;
3158c545070eSMichal Kazior
3159c545070eSMichal Kazior if (WARN_ON(!skb_queue_empty(amsdu)))
3160c545070eSMichal Kazior return -EINVAL;
3161c545070eSMichal Kazior
3162e48e9c42SKalle Valo while ((msdu = __skb_dequeue(list))) {
3163c545070eSMichal Kazior __skb_queue_tail(amsdu, msdu);
3164c545070eSMichal Kazior
31656bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
31666bae9de6SFrancesco Magliocca (void *)msdu->data -
31676bae9de6SFrancesco Magliocca hw->rx_desc_ops->rx_desc_size);
31686bae9de6SFrancesco Magliocca
31696bae9de6SFrancesco Magliocca rxd_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rxd);
31706bae9de6SFrancesco Magliocca if (rxd_msdu_end_common->info0 &
3171c545070eSMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU))
3172c545070eSMichal Kazior break;
3173c545070eSMichal Kazior }
3174c545070eSMichal Kazior
3175c545070eSMichal Kazior msdu = skb_peek_tail(amsdu);
31766bae9de6SFrancesco Magliocca rxd = HTT_RX_BUF_TO_RX_DESC(hw,
31776bae9de6SFrancesco Magliocca (void *)msdu->data - hw->rx_desc_ops->rx_desc_size);
31786bae9de6SFrancesco Magliocca
31796bae9de6SFrancesco Magliocca rxd_msdu_end_common = ath10k_htt_rx_desc_get_msdu_end(hw, rxd);
31806bae9de6SFrancesco Magliocca if (!(rxd_msdu_end_common->info0 &
3181c545070eSMichal Kazior __cpu_to_le32(RX_MSDU_END_INFO0_LAST_MSDU))) {
3182c545070eSMichal Kazior skb_queue_splice_init(amsdu, list);
3183c545070eSMichal Kazior return -EAGAIN;
3184c545070eSMichal Kazior }
3185c545070eSMichal Kazior
3186c545070eSMichal Kazior return 0;
3187c545070eSMichal Kazior }
3188c545070eSMichal Kazior
ath10k_htt_rx_h_rx_offload_prot(struct ieee80211_rx_status * status,struct sk_buff * skb)3189c545070eSMichal Kazior static void ath10k_htt_rx_h_rx_offload_prot(struct ieee80211_rx_status *status,
3190c545070eSMichal Kazior struct sk_buff *skb)
3191c545070eSMichal Kazior {
3192c545070eSMichal Kazior struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
3193c545070eSMichal Kazior
3194c545070eSMichal Kazior if (!ieee80211_has_protected(hdr->frame_control))
3195c545070eSMichal Kazior return;
3196c545070eSMichal Kazior
3197c545070eSMichal Kazior /* Offloaded frames are already decrypted but firmware insists they are
3198c545070eSMichal Kazior * protected in the 802.11 header. Strip the flag. Otherwise mac80211
3199c545070eSMichal Kazior * will drop the frame.
3200c545070eSMichal Kazior */
3201c545070eSMichal Kazior
3202c545070eSMichal Kazior hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED);
3203c545070eSMichal Kazior status->flag |= RX_FLAG_DECRYPTED |
3204c545070eSMichal Kazior RX_FLAG_IV_STRIPPED |
3205c545070eSMichal Kazior RX_FLAG_MMIC_STRIPPED;
3206c545070eSMichal Kazior }
3207c545070eSMichal Kazior
ath10k_htt_rx_h_rx_offload(struct ath10k * ar,struct sk_buff_head * list)3208deba1b9eSRajkumar Manoharan static void ath10k_htt_rx_h_rx_offload(struct ath10k *ar,
3209c545070eSMichal Kazior struct sk_buff_head *list)
3210c545070eSMichal Kazior {
3211c545070eSMichal Kazior struct ath10k_htt *htt = &ar->htt;
3212c545070eSMichal Kazior struct ieee80211_rx_status *status = &htt->rx_status;
3213c545070eSMichal Kazior struct htt_rx_offload_msdu *rx;
3214c545070eSMichal Kazior struct sk_buff *msdu;
3215c545070eSMichal Kazior size_t offset;
3216c545070eSMichal Kazior
3217c545070eSMichal Kazior while ((msdu = __skb_dequeue(list))) {
3218c545070eSMichal Kazior /* Offloaded frames don't have Rx descriptor. Instead they have
3219c545070eSMichal Kazior * a short meta information header.
3220c545070eSMichal Kazior */
3221c545070eSMichal Kazior
3222c545070eSMichal Kazior rx = (void *)msdu->data;
3223c545070eSMichal Kazior
3224c545070eSMichal Kazior skb_put(msdu, sizeof(*rx));
3225c545070eSMichal Kazior skb_pull(msdu, sizeof(*rx));
3226c545070eSMichal Kazior
3227c545070eSMichal Kazior if (skb_tailroom(msdu) < __le16_to_cpu(rx->msdu_len)) {
3228c545070eSMichal Kazior ath10k_warn(ar, "dropping frame: offloaded rx msdu is too long!\n");
3229c545070eSMichal Kazior dev_kfree_skb_any(msdu);
3230c545070eSMichal Kazior continue;
3231c545070eSMichal Kazior }
3232c545070eSMichal Kazior
3233c545070eSMichal Kazior skb_put(msdu, __le16_to_cpu(rx->msdu_len));
3234c545070eSMichal Kazior
3235c545070eSMichal Kazior /* Offloaded rx header length isn't multiple of 2 nor 4 so the
3236c545070eSMichal Kazior * actual payload is unaligned. Align the frame. Otherwise
3237c545070eSMichal Kazior * mac80211 complains. This shouldn't reduce performance much
3238c545070eSMichal Kazior * because these offloaded frames are rare.
3239c545070eSMichal Kazior */
3240c545070eSMichal Kazior offset = 4 - ((unsigned long)msdu->data & 3);
3241c545070eSMichal Kazior skb_put(msdu, offset);
3242c545070eSMichal Kazior memmove(msdu->data + offset, msdu->data, msdu->len);
3243c545070eSMichal Kazior skb_pull(msdu, offset);
3244c545070eSMichal Kazior
3245c545070eSMichal Kazior /* FIXME: The frame is NWifi. Re-construct QoS Control
3246c545070eSMichal Kazior * if possible later.
3247c545070eSMichal Kazior */
3248c545070eSMichal Kazior
3249c545070eSMichal Kazior memset(status, 0, sizeof(*status));
3250c545070eSMichal Kazior status->flag |= RX_FLAG_NO_SIGNAL_VAL;
3251c545070eSMichal Kazior
3252c545070eSMichal Kazior ath10k_htt_rx_h_rx_offload_prot(status, msdu);
3253500ff9f9SMichal Kazior ath10k_htt_rx_h_channel(ar, status, NULL, rx->vdev_id);
3254deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_queue_msdu(ar, status, msdu);
3255c545070eSMichal Kazior }
3256c545070eSMichal Kazior }
3257c545070eSMichal Kazior
ath10k_htt_rx_in_ord_ind(struct ath10k * ar,struct sk_buff * skb)3258e48e9c42SKalle Valo static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb)
3259c545070eSMichal Kazior {
3260c545070eSMichal Kazior struct ath10k_htt *htt = &ar->htt;
3261c545070eSMichal Kazior struct htt_resp *resp = (void *)skb->data;
3262c545070eSMichal Kazior struct ieee80211_rx_status *status = &htt->rx_status;
3263c545070eSMichal Kazior struct sk_buff_head list;
3264c545070eSMichal Kazior struct sk_buff_head amsdu;
3265c545070eSMichal Kazior u16 peer_id;
3266c545070eSMichal Kazior u16 msdu_count;
3267c545070eSMichal Kazior u8 vdev_id;
3268c545070eSMichal Kazior u8 tid;
3269c545070eSMichal Kazior bool offload;
3270c545070eSMichal Kazior bool frag;
3271deba1b9eSRajkumar Manoharan int ret;
3272c545070eSMichal Kazior
3273c545070eSMichal Kazior lockdep_assert_held(&htt->rx_ring.lock);
3274c545070eSMichal Kazior
3275c545070eSMichal Kazior if (htt->rx_confused)
32763c97f5deSRajkumar Manoharan return -EIO;
3277c545070eSMichal Kazior
3278c545070eSMichal Kazior skb_pull(skb, sizeof(resp->hdr));
3279c545070eSMichal Kazior skb_pull(skb, sizeof(resp->rx_in_ord_ind));
3280c545070eSMichal Kazior
3281c545070eSMichal Kazior peer_id = __le16_to_cpu(resp->rx_in_ord_ind.peer_id);
3282c545070eSMichal Kazior msdu_count = __le16_to_cpu(resp->rx_in_ord_ind.msdu_count);
3283c545070eSMichal Kazior vdev_id = resp->rx_in_ord_ind.vdev_id;
3284c545070eSMichal Kazior tid = SM(resp->rx_in_ord_ind.info, HTT_RX_IN_ORD_IND_INFO_TID);
3285c545070eSMichal Kazior offload = !!(resp->rx_in_ord_ind.info &
3286c545070eSMichal Kazior HTT_RX_IN_ORD_IND_INFO_OFFLOAD_MASK);
3287c545070eSMichal Kazior frag = !!(resp->rx_in_ord_ind.info & HTT_RX_IN_ORD_IND_INFO_FRAG_MASK);
3288c545070eSMichal Kazior
3289c545070eSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT,
3290c545070eSMichal Kazior "htt rx in ord vdev %i peer %i tid %i offload %i frag %i msdu count %i\n",
3291c545070eSMichal Kazior vdev_id, peer_id, tid, offload, frag, msdu_count);
3292c545070eSMichal Kazior
32933b0b55b1SGovind Singh if (skb->len < msdu_count * sizeof(*resp->rx_in_ord_ind.msdu_descs32)) {
3294c545070eSMichal Kazior ath10k_warn(ar, "dropping invalid in order rx indication\n");
32953c97f5deSRajkumar Manoharan return -EINVAL;
3296c545070eSMichal Kazior }
3297c545070eSMichal Kazior
3298c545070eSMichal Kazior /* The event can deliver more than 1 A-MSDU. Each A-MSDU is later
3299c545070eSMichal Kazior * extracted and processed.
3300c545070eSMichal Kazior */
3301c545070eSMichal Kazior __skb_queue_head_init(&list);
33023b0b55b1SGovind Singh if (ar->hw_params.target_64bit)
33033b0b55b1SGovind Singh ret = ath10k_htt_rx_pop_paddr64_list(htt, &resp->rx_in_ord_ind,
33043b0b55b1SGovind Singh &list);
33053b0b55b1SGovind Singh else
33063b0b55b1SGovind Singh ret = ath10k_htt_rx_pop_paddr32_list(htt, &resp->rx_in_ord_ind,
33073b0b55b1SGovind Singh &list);
33083b0b55b1SGovind Singh
3309c545070eSMichal Kazior if (ret < 0) {
3310c545070eSMichal Kazior ath10k_warn(ar, "failed to pop paddr list: %d\n", ret);
3311c545070eSMichal Kazior htt->rx_confused = true;
33123c97f5deSRajkumar Manoharan return -EIO;
3313c545070eSMichal Kazior }
3314c545070eSMichal Kazior
3315c545070eSMichal Kazior /* Offloaded frames are very different and need to be handled
3316c545070eSMichal Kazior * separately.
3317c545070eSMichal Kazior */
3318c545070eSMichal Kazior if (offload)
3319deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_rx_offload(ar, &list);
3320c545070eSMichal Kazior
3321e48e9c42SKalle Valo while (!skb_queue_empty(&list)) {
3322c545070eSMichal Kazior __skb_queue_head_init(&amsdu);
33236bae9de6SFrancesco Magliocca ret = ath10k_htt_rx_extract_amsdu(&ar->hw_params, &list, &amsdu);
3324c545070eSMichal Kazior switch (ret) {
3325c545070eSMichal Kazior case 0:
3326c545070eSMichal Kazior /* Note: The in-order indication may report interleaved
3327c545070eSMichal Kazior * frames from different PPDUs meaning reported rx rate
3328c545070eSMichal Kazior * to mac80211 isn't accurate/reliable. It's still
3329c545070eSMichal Kazior * better to report something than nothing though. This
3330c545070eSMichal Kazior * should still give an idea about rx rate to the user.
3331c545070eSMichal Kazior */
3332500ff9f9SMichal Kazior ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id);
3333caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_filter(ar, &amsdu, status, NULL);
3334caee728aSVasanthakumar Thiagarajan ath10k_htt_rx_h_mpdu(ar, &amsdu, status, false, NULL,
3335a1166b26SWen Gong NULL, peer_id, frag);
3336deba1b9eSRajkumar Manoharan ath10k_htt_rx_h_enqueue(ar, &amsdu, status);
3337c545070eSMichal Kazior break;
3338c545070eSMichal Kazior case -EAGAIN:
33391885c0f7SGustavo A. R. Silva fallthrough;
3340c545070eSMichal Kazior default:
3341c545070eSMichal Kazior /* Should not happen. */
3342c545070eSMichal Kazior ath10k_warn(ar, "failed to extract amsdu: %d\n", ret);
3343c545070eSMichal Kazior htt->rx_confused = true;
3344c545070eSMichal Kazior __skb_queue_purge(&list);
33453c97f5deSRajkumar Manoharan return -EIO;
3346c545070eSMichal Kazior }
3347c545070eSMichal Kazior }
3348deba1b9eSRajkumar Manoharan return ret;
3349c545070eSMichal Kazior }
3350c545070eSMichal Kazior
ath10k_htt_rx_tx_fetch_resp_id_confirm(struct ath10k * ar,const __le32 * resp_ids,int num_resp_ids)3351839ae637SMichal Kazior static void ath10k_htt_rx_tx_fetch_resp_id_confirm(struct ath10k *ar,
3352839ae637SMichal Kazior const __le32 *resp_ids,
3353839ae637SMichal Kazior int num_resp_ids)
3354839ae637SMichal Kazior {
3355839ae637SMichal Kazior int i;
3356839ae637SMichal Kazior u32 resp_id;
3357839ae637SMichal Kazior
3358839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch confirm num_resp_ids %d\n",
3359839ae637SMichal Kazior num_resp_ids);
3360839ae637SMichal Kazior
3361839ae637SMichal Kazior for (i = 0; i < num_resp_ids; i++) {
3362839ae637SMichal Kazior resp_id = le32_to_cpu(resp_ids[i]);
3363839ae637SMichal Kazior
3364839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch confirm resp_id %u\n",
3365839ae637SMichal Kazior resp_id);
3366839ae637SMichal Kazior
3367839ae637SMichal Kazior /* TODO: free resp_id */
3368839ae637SMichal Kazior }
3369839ae637SMichal Kazior }
3370839ae637SMichal Kazior
ath10k_htt_rx_tx_fetch_ind(struct ath10k * ar,struct sk_buff * skb)3371839ae637SMichal Kazior static void ath10k_htt_rx_tx_fetch_ind(struct ath10k *ar, struct sk_buff *skb)
3372839ae637SMichal Kazior {
3373426e10eaSMichal Kazior struct ieee80211_hw *hw = ar->hw;
3374426e10eaSMichal Kazior struct ieee80211_txq *txq;
3375839ae637SMichal Kazior struct htt_resp *resp = (struct htt_resp *)skb->data;
3376839ae637SMichal Kazior struct htt_tx_fetch_record *record;
3377839ae637SMichal Kazior size_t len;
3378839ae637SMichal Kazior size_t max_num_bytes;
3379839ae637SMichal Kazior size_t max_num_msdus;
3380426e10eaSMichal Kazior size_t num_bytes;
3381426e10eaSMichal Kazior size_t num_msdus;
3382839ae637SMichal Kazior const __le32 *resp_ids;
3383839ae637SMichal Kazior u16 num_records;
3384839ae637SMichal Kazior u16 num_resp_ids;
3385839ae637SMichal Kazior u16 peer_id;
3386839ae637SMichal Kazior u8 tid;
3387426e10eaSMichal Kazior int ret;
3388839ae637SMichal Kazior int i;
3389bb2edb73SToke Høiland-Jørgensen bool may_tx;
3390839ae637SMichal Kazior
3391839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch ind\n");
3392839ae637SMichal Kazior
3393839ae637SMichal Kazior len = sizeof(resp->hdr) + sizeof(resp->tx_fetch_ind);
3394839ae637SMichal Kazior if (unlikely(skb->len < len)) {
3395839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_ind event: buffer too short\n");
3396839ae637SMichal Kazior return;
3397839ae637SMichal Kazior }
3398839ae637SMichal Kazior
3399839ae637SMichal Kazior num_records = le16_to_cpu(resp->tx_fetch_ind.num_records);
3400839ae637SMichal Kazior num_resp_ids = le16_to_cpu(resp->tx_fetch_ind.num_resp_ids);
3401839ae637SMichal Kazior
3402839ae637SMichal Kazior len += sizeof(resp->tx_fetch_ind.records[0]) * num_records;
3403839ae637SMichal Kazior len += sizeof(resp->tx_fetch_ind.resp_ids[0]) * num_resp_ids;
3404839ae637SMichal Kazior
3405839ae637SMichal Kazior if (unlikely(skb->len < len)) {
3406839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_ind event: too many records/resp_ids\n");
3407839ae637SMichal Kazior return;
3408839ae637SMichal Kazior }
3409839ae637SMichal Kazior
3410779750bbSTom Rix ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch ind num records %u num resps %u seq %u\n",
3411839ae637SMichal Kazior num_records, num_resp_ids,
3412839ae637SMichal Kazior le16_to_cpu(resp->tx_fetch_ind.fetch_seq_num));
3413839ae637SMichal Kazior
3414426e10eaSMichal Kazior if (!ar->htt.tx_q_state.enabled) {
3415426e10eaSMichal Kazior ath10k_warn(ar, "received unexpected tx_fetch_ind event: not enabled\n");
3416426e10eaSMichal Kazior return;
3417426e10eaSMichal Kazior }
3418426e10eaSMichal Kazior
3419426e10eaSMichal Kazior if (ar->htt.tx_q_state.mode == HTT_TX_MODE_SWITCH_PUSH) {
3420426e10eaSMichal Kazior ath10k_warn(ar, "received unexpected tx_fetch_ind event: in push mode\n");
3421426e10eaSMichal Kazior return;
3422426e10eaSMichal Kazior }
3423426e10eaSMichal Kazior
3424426e10eaSMichal Kazior rcu_read_lock();
3425839ae637SMichal Kazior
3426839ae637SMichal Kazior for (i = 0; i < num_records; i++) {
3427839ae637SMichal Kazior record = &resp->tx_fetch_ind.records[i];
3428839ae637SMichal Kazior peer_id = MS(le16_to_cpu(record->info),
3429839ae637SMichal Kazior HTT_TX_FETCH_RECORD_INFO_PEER_ID);
3430839ae637SMichal Kazior tid = MS(le16_to_cpu(record->info),
3431839ae637SMichal Kazior HTT_TX_FETCH_RECORD_INFO_TID);
3432839ae637SMichal Kazior max_num_msdus = le16_to_cpu(record->num_msdus);
3433839ae637SMichal Kazior max_num_bytes = le32_to_cpu(record->num_bytes);
3434839ae637SMichal Kazior
3435779750bbSTom Rix ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch record %i peer_id %u tid %u msdus %zu bytes %zu\n",
3436839ae637SMichal Kazior i, peer_id, tid, max_num_msdus, max_num_bytes);
3437839ae637SMichal Kazior
3438839ae637SMichal Kazior if (unlikely(peer_id >= ar->htt.tx_q_state.num_peers) ||
3439839ae637SMichal Kazior unlikely(tid >= ar->htt.tx_q_state.num_tids)) {
3440779750bbSTom Rix ath10k_warn(ar, "received out of range peer_id %u tid %u\n",
3441839ae637SMichal Kazior peer_id, tid);
3442839ae637SMichal Kazior continue;
3443839ae637SMichal Kazior }
3444839ae637SMichal Kazior
3445426e10eaSMichal Kazior spin_lock_bh(&ar->data_lock);
3446426e10eaSMichal Kazior txq = ath10k_mac_txq_lookup(ar, peer_id, tid);
3447426e10eaSMichal Kazior spin_unlock_bh(&ar->data_lock);
3448426e10eaSMichal Kazior
3449426e10eaSMichal Kazior /* It is okay to release the lock and use txq because RCU read
3450426e10eaSMichal Kazior * lock is held.
3451426e10eaSMichal Kazior */
3452426e10eaSMichal Kazior
3453426e10eaSMichal Kazior if (unlikely(!txq)) {
3454779750bbSTom Rix ath10k_warn(ar, "failed to lookup txq for peer_id %u tid %u\n",
3455426e10eaSMichal Kazior peer_id, tid);
3456426e10eaSMichal Kazior continue;
3457839ae637SMichal Kazior }
3458839ae637SMichal Kazior
3459426e10eaSMichal Kazior num_msdus = 0;
3460426e10eaSMichal Kazior num_bytes = 0;
3461426e10eaSMichal Kazior
3462bb2edb73SToke Høiland-Jørgensen ieee80211_txq_schedule_start(hw, txq->ac);
3463bb2edb73SToke Høiland-Jørgensen may_tx = ieee80211_txq_may_transmit(hw, txq);
3464426e10eaSMichal Kazior while (num_msdus < max_num_msdus &&
3465426e10eaSMichal Kazior num_bytes < max_num_bytes) {
3466bb2edb73SToke Høiland-Jørgensen if (!may_tx)
3467bb2edb73SToke Høiland-Jørgensen break;
3468bb2edb73SToke Høiland-Jørgensen
3469426e10eaSMichal Kazior ret = ath10k_mac_tx_push_txq(hw, txq);
3470426e10eaSMichal Kazior if (ret < 0)
3471426e10eaSMichal Kazior break;
3472426e10eaSMichal Kazior
3473426e10eaSMichal Kazior num_msdus++;
3474426e10eaSMichal Kazior num_bytes += ret;
3475426e10eaSMichal Kazior }
34762b4a6698SFelix Fietkau ieee80211_return_txq(hw, txq, false);
3477bb2edb73SToke Høiland-Jørgensen ieee80211_txq_schedule_end(hw, txq->ac);
3478426e10eaSMichal Kazior
3479426e10eaSMichal Kazior record->num_msdus = cpu_to_le16(num_msdus);
3480426e10eaSMichal Kazior record->num_bytes = cpu_to_le32(num_bytes);
3481426e10eaSMichal Kazior
3482426e10eaSMichal Kazior ath10k_htt_tx_txq_recalc(hw, txq);
3483426e10eaSMichal Kazior }
3484426e10eaSMichal Kazior
3485426e10eaSMichal Kazior rcu_read_unlock();
3486426e10eaSMichal Kazior
3487839ae637SMichal Kazior resp_ids = ath10k_htt_get_tx_fetch_ind_resp_ids(&resp->tx_fetch_ind);
3488839ae637SMichal Kazior ath10k_htt_rx_tx_fetch_resp_id_confirm(ar, resp_ids, num_resp_ids);
3489839ae637SMichal Kazior
3490426e10eaSMichal Kazior ret = ath10k_htt_tx_fetch_resp(ar,
3491426e10eaSMichal Kazior resp->tx_fetch_ind.token,
3492426e10eaSMichal Kazior resp->tx_fetch_ind.fetch_seq_num,
3493426e10eaSMichal Kazior resp->tx_fetch_ind.records,
3494426e10eaSMichal Kazior num_records);
3495426e10eaSMichal Kazior if (unlikely(ret)) {
3496426e10eaSMichal Kazior ath10k_warn(ar, "failed to submit tx fetch resp for token 0x%08x: %d\n",
3497426e10eaSMichal Kazior le32_to_cpu(resp->tx_fetch_ind.token), ret);
3498426e10eaSMichal Kazior /* FIXME: request fw restart */
3499426e10eaSMichal Kazior }
3500426e10eaSMichal Kazior
3501426e10eaSMichal Kazior ath10k_htt_tx_txq_sync(ar);
3502839ae637SMichal Kazior }
3503839ae637SMichal Kazior
ath10k_htt_rx_tx_fetch_confirm(struct ath10k * ar,struct sk_buff * skb)3504839ae637SMichal Kazior static void ath10k_htt_rx_tx_fetch_confirm(struct ath10k *ar,
3505839ae637SMichal Kazior struct sk_buff *skb)
3506839ae637SMichal Kazior {
3507839ae637SMichal Kazior const struct htt_resp *resp = (void *)skb->data;
3508839ae637SMichal Kazior size_t len;
3509839ae637SMichal Kazior int num_resp_ids;
3510839ae637SMichal Kazior
3511839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx fetch confirm\n");
3512839ae637SMichal Kazior
3513839ae637SMichal Kazior len = sizeof(resp->hdr) + sizeof(resp->tx_fetch_confirm);
3514839ae637SMichal Kazior if (unlikely(skb->len < len)) {
3515839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_confirm event: buffer too short\n");
3516839ae637SMichal Kazior return;
3517839ae637SMichal Kazior }
3518839ae637SMichal Kazior
3519839ae637SMichal Kazior num_resp_ids = le16_to_cpu(resp->tx_fetch_confirm.num_resp_ids);
3520839ae637SMichal Kazior len += sizeof(resp->tx_fetch_confirm.resp_ids[0]) * num_resp_ids;
3521839ae637SMichal Kazior
3522839ae637SMichal Kazior if (unlikely(skb->len < len)) {
3523839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_fetch_confirm event: resp_ids buffer overflow\n");
3524839ae637SMichal Kazior return;
3525839ae637SMichal Kazior }
3526839ae637SMichal Kazior
3527839ae637SMichal Kazior ath10k_htt_rx_tx_fetch_resp_id_confirm(ar,
3528839ae637SMichal Kazior resp->tx_fetch_confirm.resp_ids,
3529839ae637SMichal Kazior num_resp_ids);
3530839ae637SMichal Kazior }
3531839ae637SMichal Kazior
ath10k_htt_rx_tx_mode_switch_ind(struct ath10k * ar,struct sk_buff * skb)3532839ae637SMichal Kazior static void ath10k_htt_rx_tx_mode_switch_ind(struct ath10k *ar,
3533839ae637SMichal Kazior struct sk_buff *skb)
3534839ae637SMichal Kazior {
3535839ae637SMichal Kazior const struct htt_resp *resp = (void *)skb->data;
3536839ae637SMichal Kazior const struct htt_tx_mode_switch_record *record;
3537426e10eaSMichal Kazior struct ieee80211_txq *txq;
3538426e10eaSMichal Kazior struct ath10k_txq *artxq;
3539839ae637SMichal Kazior size_t len;
3540839ae637SMichal Kazior size_t num_records;
3541839ae637SMichal Kazior enum htt_tx_mode_switch_mode mode;
3542839ae637SMichal Kazior bool enable;
3543839ae637SMichal Kazior u16 info0;
3544839ae637SMichal Kazior u16 info1;
3545839ae637SMichal Kazior u16 threshold;
3546839ae637SMichal Kazior u16 peer_id;
3547839ae637SMichal Kazior u8 tid;
3548839ae637SMichal Kazior int i;
3549839ae637SMichal Kazior
3550839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx tx mode switch ind\n");
3551839ae637SMichal Kazior
3552839ae637SMichal Kazior len = sizeof(resp->hdr) + sizeof(resp->tx_mode_switch_ind);
3553839ae637SMichal Kazior if (unlikely(skb->len < len)) {
3554839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_mode_switch_ind event: buffer too short\n");
3555839ae637SMichal Kazior return;
3556839ae637SMichal Kazior }
3557839ae637SMichal Kazior
3558839ae637SMichal Kazior info0 = le16_to_cpu(resp->tx_mode_switch_ind.info0);
3559839ae637SMichal Kazior info1 = le16_to_cpu(resp->tx_mode_switch_ind.info1);
3560839ae637SMichal Kazior
3561839ae637SMichal Kazior enable = !!(info0 & HTT_TX_MODE_SWITCH_IND_INFO0_ENABLE);
3562839ae637SMichal Kazior num_records = MS(info0, HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD);
3563839ae637SMichal Kazior mode = MS(info1, HTT_TX_MODE_SWITCH_IND_INFO1_MODE);
3564839ae637SMichal Kazior threshold = MS(info1, HTT_TX_MODE_SWITCH_IND_INFO1_THRESHOLD);
3565839ae637SMichal Kazior
3566839ae637SMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT,
3567cc2609edSKalle Valo "htt rx tx mode switch ind info0 0x%04x info1 0x%04x enable %d num records %zd mode %d threshold %u\n",
3568839ae637SMichal Kazior info0, info1, enable, num_records, mode, threshold);
3569839ae637SMichal Kazior
3570839ae637SMichal Kazior len += sizeof(resp->tx_mode_switch_ind.records[0]) * num_records;
3571839ae637SMichal Kazior
3572839ae637SMichal Kazior if (unlikely(skb->len < len)) {
3573839ae637SMichal Kazior ath10k_warn(ar, "received corrupted tx_mode_switch_mode_ind event: too many records\n");
3574839ae637SMichal Kazior return;
3575839ae637SMichal Kazior }
3576839ae637SMichal Kazior
3577839ae637SMichal Kazior switch (mode) {
3578839ae637SMichal Kazior case HTT_TX_MODE_SWITCH_PUSH:
3579839ae637SMichal Kazior case HTT_TX_MODE_SWITCH_PUSH_PULL:
3580839ae637SMichal Kazior break;
3581839ae637SMichal Kazior default:
3582839ae637SMichal Kazior ath10k_warn(ar, "received invalid tx_mode_switch_mode_ind mode %d, ignoring\n",
3583839ae637SMichal Kazior mode);
3584839ae637SMichal Kazior return;
3585839ae637SMichal Kazior }
3586839ae637SMichal Kazior
3587839ae637SMichal Kazior if (!enable)
3588839ae637SMichal Kazior return;
3589839ae637SMichal Kazior
3590426e10eaSMichal Kazior ar->htt.tx_q_state.enabled = enable;
3591426e10eaSMichal Kazior ar->htt.tx_q_state.mode = mode;
3592426e10eaSMichal Kazior ar->htt.tx_q_state.num_push_allowed = threshold;
3593426e10eaSMichal Kazior
3594426e10eaSMichal Kazior rcu_read_lock();
3595839ae637SMichal Kazior
3596839ae637SMichal Kazior for (i = 0; i < num_records; i++) {
3597839ae637SMichal Kazior record = &resp->tx_mode_switch_ind.records[i];
3598839ae637SMichal Kazior info0 = le16_to_cpu(record->info0);
3599839ae637SMichal Kazior peer_id = MS(info0, HTT_TX_MODE_SWITCH_RECORD_INFO0_PEER_ID);
3600839ae637SMichal Kazior tid = MS(info0, HTT_TX_MODE_SWITCH_RECORD_INFO0_TID);
3601839ae637SMichal Kazior
3602839ae637SMichal Kazior if (unlikely(peer_id >= ar->htt.tx_q_state.num_peers) ||
3603839ae637SMichal Kazior unlikely(tid >= ar->htt.tx_q_state.num_tids)) {
3604779750bbSTom Rix ath10k_warn(ar, "received out of range peer_id %u tid %u\n",
3605839ae637SMichal Kazior peer_id, tid);
3606839ae637SMichal Kazior continue;
3607839ae637SMichal Kazior }
3608839ae637SMichal Kazior
3609426e10eaSMichal Kazior spin_lock_bh(&ar->data_lock);
3610426e10eaSMichal Kazior txq = ath10k_mac_txq_lookup(ar, peer_id, tid);
3611426e10eaSMichal Kazior spin_unlock_bh(&ar->data_lock);
3612426e10eaSMichal Kazior
3613426e10eaSMichal Kazior /* It is okay to release the lock and use txq because RCU read
3614426e10eaSMichal Kazior * lock is held.
3615426e10eaSMichal Kazior */
3616426e10eaSMichal Kazior
3617426e10eaSMichal Kazior if (unlikely(!txq)) {
3618779750bbSTom Rix ath10k_warn(ar, "failed to lookup txq for peer_id %u tid %u\n",
3619426e10eaSMichal Kazior peer_id, tid);
3620426e10eaSMichal Kazior continue;
3621839ae637SMichal Kazior }
3622839ae637SMichal Kazior
3623426e10eaSMichal Kazior spin_lock_bh(&ar->htt.tx_lock);
3624426e10eaSMichal Kazior artxq = (void *)txq->drv_priv;
3625426e10eaSMichal Kazior artxq->num_push_allowed = le16_to_cpu(record->num_max_msdus);
3626426e10eaSMichal Kazior spin_unlock_bh(&ar->htt.tx_lock);
3627426e10eaSMichal Kazior }
3628426e10eaSMichal Kazior
3629426e10eaSMichal Kazior rcu_read_unlock();
3630426e10eaSMichal Kazior
3631426e10eaSMichal Kazior ath10k_mac_tx_push_pending(ar);
3632839ae637SMichal Kazior }
3633839ae637SMichal Kazior
ath10k_htt_htc_t2h_msg_handler(struct ath10k * ar,struct sk_buff * skb)3634e3a91f87SRajkumar Manoharan void ath10k_htt_htc_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
3635e3a91f87SRajkumar Manoharan {
3636e3a91f87SRajkumar Manoharan bool release;
3637e3a91f87SRajkumar Manoharan
3638e3a91f87SRajkumar Manoharan release = ath10k_htt_t2h_msg_handler(ar, skb);
3639e3a91f87SRajkumar Manoharan
3640e3a91f87SRajkumar Manoharan /* Free the indication buffer */
3641e3a91f87SRajkumar Manoharan if (release)
3642e3a91f87SRajkumar Manoharan dev_kfree_skb_any(skb);
3643e3a91f87SRajkumar Manoharan }
3644e3a91f87SRajkumar Manoharan
ath10k_get_legacy_rate_idx(struct ath10k * ar,u8 rate)36459a9cf0e6SAnilkumar Kolli static inline s8 ath10k_get_legacy_rate_idx(struct ath10k *ar, u8 rate)
3646cec17c38SAnilkumar Kolli {
3647cec17c38SAnilkumar Kolli static const u8 legacy_rates[] = {1, 2, 5, 11, 6, 9, 12,
3648cec17c38SAnilkumar Kolli 18, 24, 36, 48, 54};
3649cec17c38SAnilkumar Kolli int i;
3650cec17c38SAnilkumar Kolli
3651cec17c38SAnilkumar Kolli for (i = 0; i < ARRAY_SIZE(legacy_rates); i++) {
3652cec17c38SAnilkumar Kolli if (rate == legacy_rates[i])
36530189dbd7SAnilkumar Kolli return i;
3654cec17c38SAnilkumar Kolli }
3655cec17c38SAnilkumar Kolli
3656779750bbSTom Rix ath10k_warn(ar, "Invalid legacy rate %d peer stats", rate);
36570189dbd7SAnilkumar Kolli return -EINVAL;
3658cec17c38SAnilkumar Kolli }
3659cec17c38SAnilkumar Kolli
3660cec17c38SAnilkumar Kolli static void
ath10k_accumulate_per_peer_tx_stats(struct ath10k * ar,struct ath10k_sta * arsta,struct ath10k_per_peer_tx_stats * pstats,s8 legacy_rate_idx)3661a904417fSAnilkumar Kolli ath10k_accumulate_per_peer_tx_stats(struct ath10k *ar,
3662a904417fSAnilkumar Kolli struct ath10k_sta *arsta,
3663a904417fSAnilkumar Kolli struct ath10k_per_peer_tx_stats *pstats,
36649a9cf0e6SAnilkumar Kolli s8 legacy_rate_idx)
3665a904417fSAnilkumar Kolli {
3666a904417fSAnilkumar Kolli struct rate_info *txrate = &arsta->txrate;
3667a904417fSAnilkumar Kolli struct ath10k_htt_tx_stats *tx_stats;
3668e88975caSAnilkumar Kolli int idx, ht_idx, gi, mcs, bw, nss;
36698e55fdaaSSurabhi Vishnoi unsigned long flags;
3670a904417fSAnilkumar Kolli
3671a904417fSAnilkumar Kolli if (!arsta->tx_stats)
3672a904417fSAnilkumar Kolli return;
3673a904417fSAnilkumar Kolli
3674a904417fSAnilkumar Kolli tx_stats = arsta->tx_stats;
36758e55fdaaSSurabhi Vishnoi flags = txrate->flags;
36768e55fdaaSSurabhi Vishnoi gi = test_bit(ATH10K_RATE_INFO_FLAGS_SGI_BIT, &flags);
3677d23c2cdaSSurabhi Vishnoi mcs = ATH10K_HW_MCS_RATE(pstats->ratecode);
3678a904417fSAnilkumar Kolli bw = txrate->bw;
3679a904417fSAnilkumar Kolli nss = txrate->nss;
3680d23c2cdaSSurabhi Vishnoi ht_idx = mcs + (nss - 1) * 8;
3681d23c2cdaSSurabhi Vishnoi idx = mcs * 8 + 8 * 10 * (nss - 1);
3682e88975caSAnilkumar Kolli idx += bw * 2 + gi;
3683a904417fSAnilkumar Kolli
3684a904417fSAnilkumar Kolli #define STATS_OP_FMT(name) tx_stats->stats[ATH10K_STATS_TYPE_##name]
3685a904417fSAnilkumar Kolli
36869e0b341aSBrandon Huang if (txrate->flags & RATE_INFO_FLAGS_VHT_MCS) {
3687a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).vht[0][mcs] += pstats->succ_bytes;
3688a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).vht[1][mcs] += pstats->succ_pkts;
3689a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).vht[0][mcs] += pstats->failed_bytes;
3690a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).vht[1][mcs] += pstats->failed_pkts;
3691a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).vht[0][mcs] += pstats->retry_bytes;
3692a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).vht[1][mcs] += pstats->retry_pkts;
36939e0b341aSBrandon Huang } else if (txrate->flags & RATE_INFO_FLAGS_MCS) {
3694a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).ht[0][ht_idx] += pstats->succ_bytes;
3695a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).ht[1][ht_idx] += pstats->succ_pkts;
3696a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).ht[0][ht_idx] += pstats->failed_bytes;
3697a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).ht[1][ht_idx] += pstats->failed_pkts;
3698a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).ht[0][ht_idx] += pstats->retry_bytes;
3699a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).ht[1][ht_idx] += pstats->retry_pkts;
3700a904417fSAnilkumar Kolli } else {
3701a904417fSAnilkumar Kolli mcs = legacy_rate_idx;
3702a904417fSAnilkumar Kolli
3703a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).legacy[0][mcs] += pstats->succ_bytes;
3704a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).legacy[1][mcs] += pstats->succ_pkts;
3705a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).legacy[0][mcs] += pstats->failed_bytes;
3706a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).legacy[1][mcs] += pstats->failed_pkts;
3707a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).legacy[0][mcs] += pstats->retry_bytes;
3708a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).legacy[1][mcs] += pstats->retry_pkts;
3709a904417fSAnilkumar Kolli }
3710a904417fSAnilkumar Kolli
3711a904417fSAnilkumar Kolli if (ATH10K_HW_AMPDU(pstats->flags)) {
3712a904417fSAnilkumar Kolli tx_stats->ba_fails += ATH10K_HW_BA_FAIL(pstats->flags);
3713a904417fSAnilkumar Kolli
37149e0b341aSBrandon Huang if (txrate->flags & RATE_INFO_FLAGS_MCS) {
3715a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).ht[0][ht_idx] +=
3716a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes;
3717a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).ht[1][ht_idx] +=
3718a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts;
3719a904417fSAnilkumar Kolli } else {
3720a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).vht[0][mcs] +=
3721a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes;
3722a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).vht[1][mcs] +=
3723a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts;
3724a904417fSAnilkumar Kolli }
3725a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).bw[0][bw] +=
3726a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes;
37273a08ac3eSSurabhi Vishnoi STATS_OP_FMT(AMPDU).nss[0][nss - 1] +=
3728a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes;
3729a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).gi[0][gi] +=
3730a904417fSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes;
3731e88975caSAnilkumar Kolli STATS_OP_FMT(AMPDU).rate_table[0][idx] +=
3732e88975caSAnilkumar Kolli pstats->succ_bytes + pstats->retry_bytes;
3733a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).bw[1][bw] +=
3734a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts;
37353a08ac3eSSurabhi Vishnoi STATS_OP_FMT(AMPDU).nss[1][nss - 1] +=
3736a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts;
3737a904417fSAnilkumar Kolli STATS_OP_FMT(AMPDU).gi[1][gi] +=
3738a904417fSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts;
3739e88975caSAnilkumar Kolli STATS_OP_FMT(AMPDU).rate_table[1][idx] +=
3740e88975caSAnilkumar Kolli pstats->succ_pkts + pstats->retry_pkts;
3741a904417fSAnilkumar Kolli } else {
3742a904417fSAnilkumar Kolli tx_stats->ack_fails +=
3743a904417fSAnilkumar Kolli ATH10K_HW_BA_FAIL(pstats->flags);
3744a904417fSAnilkumar Kolli }
3745a904417fSAnilkumar Kolli
3746a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).bw[0][bw] += pstats->succ_bytes;
37473a08ac3eSSurabhi Vishnoi STATS_OP_FMT(SUCC).nss[0][nss - 1] += pstats->succ_bytes;
3748a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).gi[0][gi] += pstats->succ_bytes;
3749a904417fSAnilkumar Kolli
3750a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).bw[1][bw] += pstats->succ_pkts;
37513a08ac3eSSurabhi Vishnoi STATS_OP_FMT(SUCC).nss[1][nss - 1] += pstats->succ_pkts;
3752a904417fSAnilkumar Kolli STATS_OP_FMT(SUCC).gi[1][gi] += pstats->succ_pkts;
3753a904417fSAnilkumar Kolli
3754a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).bw[0][bw] += pstats->failed_bytes;
37553a08ac3eSSurabhi Vishnoi STATS_OP_FMT(FAIL).nss[0][nss - 1] += pstats->failed_bytes;
3756a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).gi[0][gi] += pstats->failed_bytes;
3757a904417fSAnilkumar Kolli
3758a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).bw[1][bw] += pstats->failed_pkts;
37593a08ac3eSSurabhi Vishnoi STATS_OP_FMT(FAIL).nss[1][nss - 1] += pstats->failed_pkts;
3760a904417fSAnilkumar Kolli STATS_OP_FMT(FAIL).gi[1][gi] += pstats->failed_pkts;
3761a904417fSAnilkumar Kolli
3762a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).bw[0][bw] += pstats->retry_bytes;
37633a08ac3eSSurabhi Vishnoi STATS_OP_FMT(RETRY).nss[0][nss - 1] += pstats->retry_bytes;
3764a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).gi[0][gi] += pstats->retry_bytes;
3765a904417fSAnilkumar Kolli
3766a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).bw[1][bw] += pstats->retry_pkts;
37673a08ac3eSSurabhi Vishnoi STATS_OP_FMT(RETRY).nss[1][nss - 1] += pstats->retry_pkts;
3768a904417fSAnilkumar Kolli STATS_OP_FMT(RETRY).gi[1][gi] += pstats->retry_pkts;
3769e88975caSAnilkumar Kolli
3770e88975caSAnilkumar Kolli if (txrate->flags >= RATE_INFO_FLAGS_MCS) {
3771e88975caSAnilkumar Kolli STATS_OP_FMT(SUCC).rate_table[0][idx] += pstats->succ_bytes;
3772e88975caSAnilkumar Kolli STATS_OP_FMT(SUCC).rate_table[1][idx] += pstats->succ_pkts;
3773e88975caSAnilkumar Kolli STATS_OP_FMT(FAIL).rate_table[0][idx] += pstats->failed_bytes;
3774e88975caSAnilkumar Kolli STATS_OP_FMT(FAIL).rate_table[1][idx] += pstats->failed_pkts;
3775e88975caSAnilkumar Kolli STATS_OP_FMT(RETRY).rate_table[0][idx] += pstats->retry_bytes;
3776e88975caSAnilkumar Kolli STATS_OP_FMT(RETRY).rate_table[1][idx] += pstats->retry_pkts;
3777e88975caSAnilkumar Kolli }
377805655029SSurabhi Vishnoi
377905655029SSurabhi Vishnoi tx_stats->tx_duration += pstats->duration;
3780cec17c38SAnilkumar Kolli }
3781cec17c38SAnilkumar Kolli
3782cec17c38SAnilkumar Kolli static void
ath10k_update_per_peer_tx_stats(struct ath10k * ar,struct ieee80211_sta * sta,struct ath10k_per_peer_tx_stats * peer_stats)3783cec17c38SAnilkumar Kolli ath10k_update_per_peer_tx_stats(struct ath10k *ar,
3784cec17c38SAnilkumar Kolli struct ieee80211_sta *sta,
3785cec17c38SAnilkumar Kolli struct ath10k_per_peer_tx_stats *peer_stats)
3786cec17c38SAnilkumar Kolli {
3787cec17c38SAnilkumar Kolli struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
37889a9cf0e6SAnilkumar Kolli struct ieee80211_chanctx_conf *conf = NULL;
37899d9cdbf3SGustavo A. R. Silva u8 rate = 0, sgi;
37909d9cdbf3SGustavo A. R. Silva s8 rate_idx = 0;
37919a9cf0e6SAnilkumar Kolli bool skip_auto_rate;
3792cec17c38SAnilkumar Kolli struct rate_info txrate;
3793cec17c38SAnilkumar Kolli
3794cec17c38SAnilkumar Kolli lockdep_assert_held(&ar->data_lock);
3795cec17c38SAnilkumar Kolli
3796cec17c38SAnilkumar Kolli txrate.flags = ATH10K_HW_PREAMBLE(peer_stats->ratecode);
3797cec17c38SAnilkumar Kolli txrate.bw = ATH10K_HW_BW(peer_stats->flags);
3798cec17c38SAnilkumar Kolli txrate.nss = ATH10K_HW_NSS(peer_stats->ratecode);
3799cec17c38SAnilkumar Kolli txrate.mcs = ATH10K_HW_MCS_RATE(peer_stats->ratecode);
3800cec17c38SAnilkumar Kolli sgi = ATH10K_HW_GI(peer_stats->flags);
38019a9cf0e6SAnilkumar Kolli skip_auto_rate = ATH10K_FW_SKIPPED_RATE_CTRL(peer_stats->flags);
38029a9cf0e6SAnilkumar Kolli
38039a9cf0e6SAnilkumar Kolli /* Firmware's rate control skips broadcast/management frames,
38049a9cf0e6SAnilkumar Kolli * if host has configure fixed rates and in some other special cases.
38059a9cf0e6SAnilkumar Kolli */
38069a9cf0e6SAnilkumar Kolli if (skip_auto_rate)
38079a9cf0e6SAnilkumar Kolli return;
3808cec17c38SAnilkumar Kolli
3809c1dd8016SSven Eckelmann if (txrate.flags == WMI_RATE_PREAMBLE_VHT && txrate.mcs > 9) {
3810779750bbSTom Rix ath10k_warn(ar, "Invalid VHT mcs %d peer stats", txrate.mcs);
3811c1dd8016SSven Eckelmann return;
3812c1dd8016SSven Eckelmann }
3813c1dd8016SSven Eckelmann
3814c1dd8016SSven Eckelmann if (txrate.flags == WMI_RATE_PREAMBLE_HT &&
3815c1dd8016SSven Eckelmann (txrate.mcs > 7 || txrate.nss < 1)) {
3816779750bbSTom Rix ath10k_warn(ar, "Invalid HT mcs %d nss %d peer stats",
3817c1dd8016SSven Eckelmann txrate.mcs, txrate.nss);
3818cec17c38SAnilkumar Kolli return;
3819cec17c38SAnilkumar Kolli }
3820cec17c38SAnilkumar Kolli
38210f8a2b77SMohammed Shafi Shajakhan memset(&arsta->txrate, 0, sizeof(arsta->txrate));
38229a9cf0e6SAnilkumar Kolli memset(&arsta->tx_info.status, 0, sizeof(arsta->tx_info.status));
3823cec17c38SAnilkumar Kolli if (txrate.flags == WMI_RATE_PREAMBLE_CCK ||
3824cec17c38SAnilkumar Kolli txrate.flags == WMI_RATE_PREAMBLE_OFDM) {
3825cec17c38SAnilkumar Kolli rate = ATH10K_HW_LEGACY_RATE(peer_stats->ratecode);
3826cec17c38SAnilkumar Kolli /* This is hacky, FW sends CCK rate 5.5Mbps as 6 */
38270189dbd7SAnilkumar Kolli if (rate == 6 && txrate.flags == WMI_RATE_PREAMBLE_CCK)
38280189dbd7SAnilkumar Kolli rate = 5;
38290189dbd7SAnilkumar Kolli rate_idx = ath10k_get_legacy_rate_idx(ar, rate);
38300189dbd7SAnilkumar Kolli if (rate_idx < 0)
38310189dbd7SAnilkumar Kolli return;
3832cd591027SMohammed Shafi Shajakhan arsta->txrate.legacy = rate;
3833cec17c38SAnilkumar Kolli } else if (txrate.flags == WMI_RATE_PREAMBLE_HT) {
3834cec17c38SAnilkumar Kolli arsta->txrate.flags = RATE_INFO_FLAGS_MCS;
3835c1dd8016SSven Eckelmann arsta->txrate.mcs = txrate.mcs + 8 * (txrate.nss - 1);
3836cec17c38SAnilkumar Kolli } else {
3837cec17c38SAnilkumar Kolli arsta->txrate.flags = RATE_INFO_FLAGS_VHT_MCS;
3838cec17c38SAnilkumar Kolli arsta->txrate.mcs = txrate.mcs;
3839cec17c38SAnilkumar Kolli }
3840cec17c38SAnilkumar Kolli
38419a9cf0e6SAnilkumar Kolli switch (txrate.flags) {
38429a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_OFDM:
38439a9cf0e6SAnilkumar Kolli if (arsta->arvif && arsta->arvif->vif)
3844d0a9123eSJohannes Berg conf = rcu_dereference(arsta->arvif->vif->bss_conf.chanctx_conf);
38459a9cf0e6SAnilkumar Kolli if (conf && conf->def.chan->band == NL80211_BAND_5GHZ)
38469a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].idx = rate_idx - 4;
38479a9cf0e6SAnilkumar Kolli break;
38489a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_CCK:
38499a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].idx = rate_idx;
3850cec17c38SAnilkumar Kolli if (sgi)
38519a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |=
38529a9cf0e6SAnilkumar Kolli (IEEE80211_TX_RC_USE_SHORT_PREAMBLE |
38539a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_SHORT_GI);
38549a9cf0e6SAnilkumar Kolli break;
38559a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_HT:
38569a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].idx =
38579a9cf0e6SAnilkumar Kolli txrate.mcs + ((txrate.nss - 1) * 8);
38589a9cf0e6SAnilkumar Kolli if (sgi)
38599a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |=
38609a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_SHORT_GI;
38619a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= IEEE80211_TX_RC_MCS;
38629a9cf0e6SAnilkumar Kolli break;
38639a9cf0e6SAnilkumar Kolli case WMI_RATE_PREAMBLE_VHT:
38649a9cf0e6SAnilkumar Kolli ieee80211_rate_set_vht(&arsta->tx_info.status.rates[0],
38659a9cf0e6SAnilkumar Kolli txrate.mcs, txrate.nss);
38669a9cf0e6SAnilkumar Kolli if (sgi)
38679a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |=
38689a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_SHORT_GI;
38699a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |= IEEE80211_TX_RC_VHT_MCS;
38709a9cf0e6SAnilkumar Kolli break;
38719a9cf0e6SAnilkumar Kolli }
3872cec17c38SAnilkumar Kolli
3873cec17c38SAnilkumar Kolli arsta->txrate.nss = txrate.nss;
387491493e8eSChristian Lamparter arsta->txrate.bw = ath10k_bw_to_mac80211_bw(txrate.bw);
3875d1ce37b7SKan Yan arsta->last_tx_bitrate = cfg80211_calculate_bitrate(&arsta->txrate);
38769a9cf0e6SAnilkumar Kolli if (sgi)
38779a9cf0e6SAnilkumar Kolli arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
38789a9cf0e6SAnilkumar Kolli
38799a9cf0e6SAnilkumar Kolli switch (arsta->txrate.bw) {
38809a9cf0e6SAnilkumar Kolli case RATE_INFO_BW_40:
38819a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |=
38829a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_40_MHZ_WIDTH;
38839a9cf0e6SAnilkumar Kolli break;
38849a9cf0e6SAnilkumar Kolli case RATE_INFO_BW_80:
38859a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].flags |=
38869a9cf0e6SAnilkumar Kolli IEEE80211_TX_RC_80_MHZ_WIDTH;
38879a9cf0e6SAnilkumar Kolli break;
388875a7062eSMaxime Bizon case RATE_INFO_BW_160:
388975a7062eSMaxime Bizon arsta->tx_info.status.rates[0].flags |=
389075a7062eSMaxime Bizon IEEE80211_TX_RC_160_MHZ_WIDTH;
389175a7062eSMaxime Bizon break;
38929a9cf0e6SAnilkumar Kolli }
38939a9cf0e6SAnilkumar Kolli
38949a9cf0e6SAnilkumar Kolli if (peer_stats->succ_pkts) {
38959a9cf0e6SAnilkumar Kolli arsta->tx_info.flags = IEEE80211_TX_STAT_ACK;
38969a9cf0e6SAnilkumar Kolli arsta->tx_info.status.rates[0].count = 1;
38979a9cf0e6SAnilkumar Kolli ieee80211_tx_rate_update(ar->hw, sta, &arsta->tx_info);
38989a9cf0e6SAnilkumar Kolli }
3899a904417fSAnilkumar Kolli
390059a022ccSWen Gong if (ar->htt.disable_tx_comp) {
390159a022ccSWen Gong arsta->tx_failed += peer_stats->failed_pkts;
390267b927f9SVenkateswara Naralasetty ath10k_dbg(ar, ATH10K_DBG_HTT, "tx failed %d\n",
390367b927f9SVenkateswara Naralasetty arsta->tx_failed);
390459a022ccSWen Gong }
390559a022ccSWen Gong
390667b927f9SVenkateswara Naralasetty arsta->tx_retries += peer_stats->retry_pkts;
390767b927f9SVenkateswara Naralasetty ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx retries %d", arsta->tx_retries);
390867b927f9SVenkateswara Naralasetty
3909a904417fSAnilkumar Kolli if (ath10k_debug_is_extd_tx_stats_enabled(ar))
3910a904417fSAnilkumar Kolli ath10k_accumulate_per_peer_tx_stats(ar, arsta, peer_stats,
3911a904417fSAnilkumar Kolli rate_idx);
3912cec17c38SAnilkumar Kolli }
3913cec17c38SAnilkumar Kolli
ath10k_htt_fetch_peer_stats(struct ath10k * ar,struct sk_buff * skb)3914cec17c38SAnilkumar Kolli static void ath10k_htt_fetch_peer_stats(struct ath10k *ar,
3915cec17c38SAnilkumar Kolli struct sk_buff *skb)
3916cec17c38SAnilkumar Kolli {
3917cec17c38SAnilkumar Kolli struct htt_resp *resp = (struct htt_resp *)skb->data;
3918cec17c38SAnilkumar Kolli struct ath10k_per_peer_tx_stats *p_tx_stats = &ar->peer_tx_stats;
3919cec17c38SAnilkumar Kolli struct htt_per_peer_tx_stats_ind *tx_stats;
3920cec17c38SAnilkumar Kolli struct ieee80211_sta *sta;
3921cec17c38SAnilkumar Kolli struct ath10k_peer *peer;
3922cec17c38SAnilkumar Kolli int peer_id, i;
3923cec17c38SAnilkumar Kolli u8 ppdu_len, num_ppdu;
3924cec17c38SAnilkumar Kolli
3925cec17c38SAnilkumar Kolli num_ppdu = resp->peer_tx_stats.num_ppdu;
3926cec17c38SAnilkumar Kolli ppdu_len = resp->peer_tx_stats.ppdu_len * sizeof(__le32);
3927cec17c38SAnilkumar Kolli
3928cec17c38SAnilkumar Kolli if (skb->len < sizeof(struct htt_resp_hdr) + num_ppdu * ppdu_len) {
3929cec17c38SAnilkumar Kolli ath10k_warn(ar, "Invalid peer stats buf length %d\n", skb->len);
3930cec17c38SAnilkumar Kolli return;
3931cec17c38SAnilkumar Kolli }
3932cec17c38SAnilkumar Kolli
3933cec17c38SAnilkumar Kolli tx_stats = (struct htt_per_peer_tx_stats_ind *)
3934cec17c38SAnilkumar Kolli (resp->peer_tx_stats.payload);
3935cec17c38SAnilkumar Kolli peer_id = __le16_to_cpu(tx_stats->peer_id);
3936cec17c38SAnilkumar Kolli
3937cec17c38SAnilkumar Kolli rcu_read_lock();
3938cec17c38SAnilkumar Kolli spin_lock_bh(&ar->data_lock);
3939cec17c38SAnilkumar Kolli peer = ath10k_peer_find_by_id(ar, peer_id);
39402d3b5585SZhi Chen if (!peer || !peer->sta) {
3941cec17c38SAnilkumar Kolli ath10k_warn(ar, "Invalid peer id %d peer stats buffer\n",
3942cec17c38SAnilkumar Kolli peer_id);
3943cec17c38SAnilkumar Kolli goto out;
3944cec17c38SAnilkumar Kolli }
3945cec17c38SAnilkumar Kolli
3946cec17c38SAnilkumar Kolli sta = peer->sta;
3947cec17c38SAnilkumar Kolli for (i = 0; i < num_ppdu; i++) {
3948cec17c38SAnilkumar Kolli tx_stats = (struct htt_per_peer_tx_stats_ind *)
3949cec17c38SAnilkumar Kolli (resp->peer_tx_stats.payload + i * ppdu_len);
3950cec17c38SAnilkumar Kolli
3951cec17c38SAnilkumar Kolli p_tx_stats->succ_bytes = __le32_to_cpu(tx_stats->succ_bytes);
3952cec17c38SAnilkumar Kolli p_tx_stats->retry_bytes = __le32_to_cpu(tx_stats->retry_bytes);
3953cec17c38SAnilkumar Kolli p_tx_stats->failed_bytes =
3954cec17c38SAnilkumar Kolli __le32_to_cpu(tx_stats->failed_bytes);
3955cec17c38SAnilkumar Kolli p_tx_stats->ratecode = tx_stats->ratecode;
3956cec17c38SAnilkumar Kolli p_tx_stats->flags = tx_stats->flags;
3957cec17c38SAnilkumar Kolli p_tx_stats->succ_pkts = __le16_to_cpu(tx_stats->succ_pkts);
3958cec17c38SAnilkumar Kolli p_tx_stats->retry_pkts = __le16_to_cpu(tx_stats->retry_pkts);
3959cec17c38SAnilkumar Kolli p_tx_stats->failed_pkts = __le16_to_cpu(tx_stats->failed_pkts);
396005655029SSurabhi Vishnoi p_tx_stats->duration = __le16_to_cpu(tx_stats->tx_duration);
3961cec17c38SAnilkumar Kolli
3962cec17c38SAnilkumar Kolli ath10k_update_per_peer_tx_stats(ar, sta, p_tx_stats);
3963cec17c38SAnilkumar Kolli }
3964cec17c38SAnilkumar Kolli
3965cec17c38SAnilkumar Kolli out:
3966cec17c38SAnilkumar Kolli spin_unlock_bh(&ar->data_lock);
3967cec17c38SAnilkumar Kolli rcu_read_unlock();
3968cec17c38SAnilkumar Kolli }
3969cec17c38SAnilkumar Kolli
ath10k_fetch_10_2_tx_stats(struct ath10k * ar,u8 * data)3970e8123bb7SAnilkumar Kolli static void ath10k_fetch_10_2_tx_stats(struct ath10k *ar, u8 *data)
3971e8123bb7SAnilkumar Kolli {
3972e8123bb7SAnilkumar Kolli struct ath10k_pktlog_hdr *hdr = (struct ath10k_pktlog_hdr *)data;
3973e8123bb7SAnilkumar Kolli struct ath10k_per_peer_tx_stats *p_tx_stats = &ar->peer_tx_stats;
3974e8123bb7SAnilkumar Kolli struct ath10k_10_2_peer_tx_stats *tx_stats;
3975e8123bb7SAnilkumar Kolli struct ieee80211_sta *sta;
3976e8123bb7SAnilkumar Kolli struct ath10k_peer *peer;
3977e8123bb7SAnilkumar Kolli u16 log_type = __le16_to_cpu(hdr->log_type);
3978e8123bb7SAnilkumar Kolli u32 peer_id = 0, i;
3979e8123bb7SAnilkumar Kolli
3980e8123bb7SAnilkumar Kolli if (log_type != ATH_PKTLOG_TYPE_TX_STAT)
3981e8123bb7SAnilkumar Kolli return;
3982e8123bb7SAnilkumar Kolli
3983e8123bb7SAnilkumar Kolli tx_stats = (struct ath10k_10_2_peer_tx_stats *)((hdr->payload) +
3984e8123bb7SAnilkumar Kolli ATH10K_10_2_TX_STATS_OFFSET);
3985e8123bb7SAnilkumar Kolli
3986e8123bb7SAnilkumar Kolli if (!tx_stats->tx_ppdu_cnt)
3987e8123bb7SAnilkumar Kolli return;
3988e8123bb7SAnilkumar Kolli
3989e8123bb7SAnilkumar Kolli peer_id = tx_stats->peer_id;
3990e8123bb7SAnilkumar Kolli
3991e8123bb7SAnilkumar Kolli rcu_read_lock();
3992e8123bb7SAnilkumar Kolli spin_lock_bh(&ar->data_lock);
3993e8123bb7SAnilkumar Kolli peer = ath10k_peer_find_by_id(ar, peer_id);
39942d3b5585SZhi Chen if (!peer || !peer->sta) {
3995e8123bb7SAnilkumar Kolli ath10k_warn(ar, "Invalid peer id %d in peer stats buffer\n",
3996e8123bb7SAnilkumar Kolli peer_id);
3997e8123bb7SAnilkumar Kolli goto out;
3998e8123bb7SAnilkumar Kolli }
3999e8123bb7SAnilkumar Kolli
4000e8123bb7SAnilkumar Kolli sta = peer->sta;
4001e8123bb7SAnilkumar Kolli for (i = 0; i < tx_stats->tx_ppdu_cnt; i++) {
4002e8123bb7SAnilkumar Kolli p_tx_stats->succ_bytes =
4003e8123bb7SAnilkumar Kolli __le16_to_cpu(tx_stats->success_bytes[i]);
4004e8123bb7SAnilkumar Kolli p_tx_stats->retry_bytes =
4005e8123bb7SAnilkumar Kolli __le16_to_cpu(tx_stats->retry_bytes[i]);
4006e8123bb7SAnilkumar Kolli p_tx_stats->failed_bytes =
4007e8123bb7SAnilkumar Kolli __le16_to_cpu(tx_stats->failed_bytes[i]);
4008e8123bb7SAnilkumar Kolli p_tx_stats->ratecode = tx_stats->ratecode[i];
4009e8123bb7SAnilkumar Kolli p_tx_stats->flags = tx_stats->flags[i];
4010e8123bb7SAnilkumar Kolli p_tx_stats->succ_pkts = tx_stats->success_pkts[i];
4011e8123bb7SAnilkumar Kolli p_tx_stats->retry_pkts = tx_stats->retry_pkts[i];
4012e8123bb7SAnilkumar Kolli p_tx_stats->failed_pkts = tx_stats->failed_pkts[i];
4013e8123bb7SAnilkumar Kolli
4014e8123bb7SAnilkumar Kolli ath10k_update_per_peer_tx_stats(ar, sta, p_tx_stats);
4015e8123bb7SAnilkumar Kolli }
4016e8123bb7SAnilkumar Kolli spin_unlock_bh(&ar->data_lock);
4017e8123bb7SAnilkumar Kolli rcu_read_unlock();
4018e8123bb7SAnilkumar Kolli
4019e8123bb7SAnilkumar Kolli return;
4020e8123bb7SAnilkumar Kolli
4021e8123bb7SAnilkumar Kolli out:
4022e8123bb7SAnilkumar Kolli spin_unlock_bh(&ar->data_lock);
4023e8123bb7SAnilkumar Kolli rcu_read_unlock();
4024e8123bb7SAnilkumar Kolli }
4025e8123bb7SAnilkumar Kolli
ath10k_htt_rx_pn_len(enum htt_security_types sec_type)402628ce53b6SWen Gong static int ath10k_htt_rx_pn_len(enum htt_security_types sec_type)
402728ce53b6SWen Gong {
402828ce53b6SWen Gong switch (sec_type) {
402928ce53b6SWen Gong case HTT_SECURITY_TKIP:
403028ce53b6SWen Gong case HTT_SECURITY_TKIP_NOMIC:
403128ce53b6SWen Gong case HTT_SECURITY_AES_CCMP:
403228ce53b6SWen Gong return 48;
403328ce53b6SWen Gong default:
403428ce53b6SWen Gong return 0;
403528ce53b6SWen Gong }
403628ce53b6SWen Gong }
403728ce53b6SWen Gong
ath10k_htt_rx_sec_ind_handler(struct ath10k * ar,struct htt_security_indication * ev)403828ce53b6SWen Gong static void ath10k_htt_rx_sec_ind_handler(struct ath10k *ar,
403928ce53b6SWen Gong struct htt_security_indication *ev)
404028ce53b6SWen Gong {
404128ce53b6SWen Gong enum htt_txrx_sec_cast_type sec_index;
404228ce53b6SWen Gong enum htt_security_types sec_type;
404328ce53b6SWen Gong struct ath10k_peer *peer;
404428ce53b6SWen Gong
404528ce53b6SWen Gong spin_lock_bh(&ar->data_lock);
404628ce53b6SWen Gong
404728ce53b6SWen Gong peer = ath10k_peer_find_by_id(ar, __le16_to_cpu(ev->peer_id));
404828ce53b6SWen Gong if (!peer) {
404928ce53b6SWen Gong ath10k_warn(ar, "failed to find peer id %d for security indication",
405028ce53b6SWen Gong __le16_to_cpu(ev->peer_id));
405128ce53b6SWen Gong goto out;
405228ce53b6SWen Gong }
405328ce53b6SWen Gong
405428ce53b6SWen Gong sec_type = MS(ev->flags, HTT_SECURITY_TYPE);
405528ce53b6SWen Gong
405628ce53b6SWen Gong if (ev->flags & HTT_SECURITY_IS_UNICAST)
405728ce53b6SWen Gong sec_index = HTT_TXRX_SEC_UCAST;
405828ce53b6SWen Gong else
405928ce53b6SWen Gong sec_index = HTT_TXRX_SEC_MCAST;
406028ce53b6SWen Gong
406128ce53b6SWen Gong peer->rx_pn[sec_index].sec_type = sec_type;
406228ce53b6SWen Gong peer->rx_pn[sec_index].pn_len = ath10k_htt_rx_pn_len(sec_type);
406328ce53b6SWen Gong
406428ce53b6SWen Gong memset(peer->tids_last_pn_valid, 0, sizeof(peer->tids_last_pn_valid));
406528ce53b6SWen Gong memset(peer->tids_last_pn, 0, sizeof(peer->tids_last_pn));
406628ce53b6SWen Gong
406728ce53b6SWen Gong out:
406828ce53b6SWen Gong spin_unlock_bh(&ar->data_lock);
406928ce53b6SWen Gong }
407028ce53b6SWen Gong
ath10k_htt_t2h_msg_handler(struct ath10k * ar,struct sk_buff * skb)4071e3a91f87SRajkumar Manoharan bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
40725e3dd157SKalle Valo {
4073edb8236dSMichal Kazior struct ath10k_htt *htt = &ar->htt;
40745e3dd157SKalle Valo struct htt_resp *resp = (struct htt_resp *)skb->data;
40758348db29SRajkumar Manoharan enum htt_t2h_msg_type type;
40765e3dd157SKalle Valo
40775e3dd157SKalle Valo /* confirm alignment */
40785e3dd157SKalle Valo if (!IS_ALIGNED((unsigned long)skb->data, 4))
40797aa7a72aSMichal Kazior ath10k_warn(ar, "unaligned htt message, expect trouble\n");
40805e3dd157SKalle Valo
40817aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx, msg_type: 0x%0X\n",
40825e3dd157SKalle Valo resp->hdr.msg_type);
40838348db29SRajkumar Manoharan
40848348db29SRajkumar Manoharan if (resp->hdr.msg_type >= ar->htt.t2h_msg_types_max) {
40858348db29SRajkumar Manoharan ath10k_dbg(ar, ATH10K_DBG_HTT, "htt rx, unsupported msg_type: 0x%0X\n max: 0x%0X",
40868348db29SRajkumar Manoharan resp->hdr.msg_type, ar->htt.t2h_msg_types_max);
4087e3a91f87SRajkumar Manoharan return true;
40888348db29SRajkumar Manoharan }
40898348db29SRajkumar Manoharan type = ar->htt.t2h_msg_types[resp->hdr.msg_type];
40908348db29SRajkumar Manoharan
40918348db29SRajkumar Manoharan switch (type) {
40925e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_VERSION_CONF: {
40935e3dd157SKalle Valo htt->target_version_major = resp->ver_resp.major;
40945e3dd157SKalle Valo htt->target_version_minor = resp->ver_resp.minor;
40955e3dd157SKalle Valo complete(&htt->target_version_received);
40965e3dd157SKalle Valo break;
40975e3dd157SKalle Valo }
40986c5151a9SMichal Kazior case HTT_T2H_MSG_TYPE_RX_IND:
4099cfee8793SWen Gong if (ar->bus_param.dev_type != ATH10K_DEV_TYPE_HL) {
4100f88d4934SErik Stromdahl ath10k_htt_rx_proc_rx_ind_ll(htt, &resp->rx_ind);
4101cfee8793SWen Gong } else {
4102cfee8793SWen Gong skb_queue_tail(&htt->rx_indication_head, skb);
4103cfee8793SWen Gong return false;
4104cfee8793SWen Gong }
41053128b3d8SRajkumar Manoharan break;
41065e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_PEER_MAP: {
41075e3dd157SKalle Valo struct htt_peer_map_event ev = {
41085e3dd157SKalle Valo .vdev_id = resp->peer_map.vdev_id,
41095e3dd157SKalle Valo .peer_id = __le16_to_cpu(resp->peer_map.peer_id),
41105e3dd157SKalle Valo };
41115e3dd157SKalle Valo memcpy(ev.addr, resp->peer_map.addr, sizeof(ev.addr));
41125e3dd157SKalle Valo ath10k_peer_map_event(htt, &ev);
41135e3dd157SKalle Valo break;
41145e3dd157SKalle Valo }
41155e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_PEER_UNMAP: {
41165e3dd157SKalle Valo struct htt_peer_unmap_event ev = {
41175e3dd157SKalle Valo .peer_id = __le16_to_cpu(resp->peer_unmap.peer_id),
41185e3dd157SKalle Valo };
41195e3dd157SKalle Valo ath10k_peer_unmap_event(htt, &ev);
41205e3dd157SKalle Valo break;
41215e3dd157SKalle Valo }
41225e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_MGMT_TX_COMPLETION: {
41235e3dd157SKalle Valo struct htt_tx_done tx_done = {};
4124d81686d3SWen Gong struct ath10k_htt *htt = &ar->htt;
4125d81686d3SWen Gong struct ath10k_htc *htc = &ar->htc;
4126d81686d3SWen Gong struct ath10k_htc_ep *ep = &ar->htc.endpoint[htt->eid];
41275e3dd157SKalle Valo int status = __le32_to_cpu(resp->mgmt_tx_completion.status);
4128235b9c42SVenkateswara Naralasetty int info = __le32_to_cpu(resp->mgmt_tx_completion.info);
41295e3dd157SKalle Valo
413059465fe4SRajkumar Manoharan tx_done.msdu_id = __le32_to_cpu(resp->mgmt_tx_completion.desc_id);
41315e3dd157SKalle Valo
41325e3dd157SKalle Valo switch (status) {
41335e3dd157SKalle Valo case HTT_MGMT_TX_STATUS_OK:
413459465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_ACK;
4135235b9c42SVenkateswara Naralasetty if (test_bit(WMI_SERVICE_HTT_MGMT_TX_COMP_VALID_FLAGS,
4136235b9c42SVenkateswara Naralasetty ar->wmi.svc_map) &&
4137235b9c42SVenkateswara Naralasetty (resp->mgmt_tx_completion.flags &
4138235b9c42SVenkateswara Naralasetty HTT_MGMT_TX_CMPL_FLAG_ACK_RSSI)) {
4139235b9c42SVenkateswara Naralasetty tx_done.ack_rssi =
4140235b9c42SVenkateswara Naralasetty FIELD_GET(HTT_MGMT_TX_CMPL_INFO_ACK_RSSI_MASK,
4141235b9c42SVenkateswara Naralasetty info);
4142235b9c42SVenkateswara Naralasetty }
41435e3dd157SKalle Valo break;
41445e3dd157SKalle Valo case HTT_MGMT_TX_STATUS_RETRY:
414559465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_NOACK;
41465e3dd157SKalle Valo break;
41475e3dd157SKalle Valo case HTT_MGMT_TX_STATUS_DROP:
414859465fe4SRajkumar Manoharan tx_done.status = HTT_TX_COMPL_STATE_DISCARD;
41495e3dd157SKalle Valo break;
41505e3dd157SKalle Valo }
41515e3dd157SKalle Valo
4152d81686d3SWen Gong if (htt->disable_tx_comp) {
4153d81686d3SWen Gong spin_lock_bh(&htc->tx_lock);
4154d81686d3SWen Gong ep->tx_credits++;
4155d81686d3SWen Gong spin_unlock_bh(&htc->tx_lock);
4156d81686d3SWen Gong }
4157d81686d3SWen Gong
4158cac08552SRajkumar Manoharan status = ath10k_txrx_tx_unref(htt, &tx_done);
4159cac08552SRajkumar Manoharan if (!status) {
4160cac08552SRajkumar Manoharan spin_lock_bh(&htt->tx_lock);
4161cac08552SRajkumar Manoharan ath10k_htt_tx_mgmt_dec_pending(htt);
4162cac08552SRajkumar Manoharan spin_unlock_bh(&htt->tx_lock);
4163cac08552SRajkumar Manoharan }
41645e3dd157SKalle Valo break;
41655e3dd157SKalle Valo }
41666c5151a9SMichal Kazior case HTT_T2H_MSG_TYPE_TX_COMPL_IND:
416759465fe4SRajkumar Manoharan ath10k_htt_rx_tx_compl_ind(htt->ar, skb);
416859465fe4SRajkumar Manoharan break;
41695e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_SEC_IND: {
41705e3dd157SKalle Valo struct ath10k *ar = htt->ar;
41715e3dd157SKalle Valo struct htt_security_indication *ev = &resp->security_indication;
41725e3dd157SKalle Valo
417328ce53b6SWen Gong ath10k_htt_rx_sec_ind_handler(ar, ev);
41747aa7a72aSMichal Kazior ath10k_dbg(ar, ATH10K_DBG_HTT,
41755e3dd157SKalle Valo "sec ind peer_id %d unicast %d type %d\n",
41765e3dd157SKalle Valo __le16_to_cpu(ev->peer_id),
41775e3dd157SKalle Valo !!(ev->flags & HTT_SECURITY_IS_UNICAST),
41785e3dd157SKalle Valo MS(ev->flags, HTT_SECURITY_TYPE));
41795e3dd157SKalle Valo complete(&ar->install_key_done);
41805e3dd157SKalle Valo break;
41815e3dd157SKalle Valo }
41825e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_RX_FRAG_IND: {
41837aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt event: ",
41845e3dd157SKalle Valo skb->data, skb->len);
41853c97f5deSRajkumar Manoharan atomic_inc(&htt->num_mpdus_ready);
418633f97472SWen Gong
418733f97472SWen Gong return ath10k_htt_rx_proc_rx_frag_ind(htt,
418833f97472SWen Gong &resp->rx_frag_ind,
418933f97472SWen Gong skb);
41905e3dd157SKalle Valo }
41915e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_TEST:
41925e3dd157SKalle Valo break;
41935e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_STATS_CONF:
4194d35a6c18SMichal Kazior trace_ath10k_htt_stats(ar, skb->data, skb->len);
4195a9bf0506SKalle Valo break;
4196a9bf0506SKalle Valo case HTT_T2H_MSG_TYPE_TX_INSPECT_IND:
4197708b9bdeSMichal Kazior /* Firmware can return tx frames if it's unable to fully
4198708b9bdeSMichal Kazior * process them and suspects host may be able to fix it. ath10k
4199708b9bdeSMichal Kazior * sends all tx frames as already inspected so this shouldn't
4200708b9bdeSMichal Kazior * happen unless fw has a bug.
4201708b9bdeSMichal Kazior */
42027aa7a72aSMichal Kazior ath10k_warn(ar, "received an unexpected htt tx inspect event\n");
4203708b9bdeSMichal Kazior break;
42045e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_RX_ADDBA:
4205aa5b4fbcSMichal Kazior ath10k_htt_rx_addba(ar, resp);
4206aa5b4fbcSMichal Kazior break;
42075e3dd157SKalle Valo case HTT_T2H_MSG_TYPE_RX_DELBA:
4208aa5b4fbcSMichal Kazior ath10k_htt_rx_delba(ar, resp);
4209aa5b4fbcSMichal Kazior break;
4210bfdd7937SRajkumar Manoharan case HTT_T2H_MSG_TYPE_PKTLOG: {
4211bfdd7937SRajkumar Manoharan trace_ath10k_htt_pktlog(ar, resp->pktlog_msg.payload,
421234293f75SAshok Raj Nagarajan skb->len -
421334293f75SAshok Raj Nagarajan offsetof(struct htt_resp,
421434293f75SAshok Raj Nagarajan pktlog_msg.payload));
4215e8123bb7SAnilkumar Kolli
4216e8123bb7SAnilkumar Kolli if (ath10k_peer_stats_enabled(ar))
4217e8123bb7SAnilkumar Kolli ath10k_fetch_10_2_tx_stats(ar,
4218e8123bb7SAnilkumar Kolli resp->pktlog_msg.payload);
4219bfdd7937SRajkumar Manoharan break;
4220bfdd7937SRajkumar Manoharan }
4221aa5b4fbcSMichal Kazior case HTT_T2H_MSG_TYPE_RX_FLUSH: {
4222aa5b4fbcSMichal Kazior /* Ignore this event because mac80211 takes care of Rx
4223aa5b4fbcSMichal Kazior * aggregation reordering.
4224aa5b4fbcSMichal Kazior */
4225aa5b4fbcSMichal Kazior break;
4226aa5b4fbcSMichal Kazior }
4227c545070eSMichal Kazior case HTT_T2H_MSG_TYPE_RX_IN_ORD_PADDR_IND: {
422862652555SBob Copeland skb_queue_tail(&htt->rx_in_ord_compl_q, skb);
4229e3a91f87SRajkumar Manoharan return false;
4230c545070eSMichal Kazior }
4231d81686d3SWen Gong case HTT_T2H_MSG_TYPE_TX_CREDIT_UPDATE_IND: {
4232d81686d3SWen Gong struct ath10k_htt *htt = &ar->htt;
4233d81686d3SWen Gong struct ath10k_htc *htc = &ar->htc;
4234d81686d3SWen Gong struct ath10k_htc_ep *ep = &ar->htc.endpoint[htt->eid];
4235d81686d3SWen Gong u32 msg_word = __le32_to_cpu(*(__le32 *)resp);
4236d81686d3SWen Gong int htt_credit_delta;
4237d81686d3SWen Gong
4238d81686d3SWen Gong htt_credit_delta = HTT_TX_CREDIT_DELTA_ABS_GET(msg_word);
4239d81686d3SWen Gong if (HTT_TX_CREDIT_SIGN_BIT_GET(msg_word))
4240d81686d3SWen Gong htt_credit_delta = -htt_credit_delta;
4241d81686d3SWen Gong
4242d81686d3SWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT,
4243d81686d3SWen Gong "htt credit update delta %d\n",
4244d81686d3SWen Gong htt_credit_delta);
4245d81686d3SWen Gong
4246d81686d3SWen Gong if (htt->disable_tx_comp) {
4247d81686d3SWen Gong spin_lock_bh(&htc->tx_lock);
4248d81686d3SWen Gong ep->tx_credits += htt_credit_delta;
4249d81686d3SWen Gong spin_unlock_bh(&htc->tx_lock);
4250d81686d3SWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT,
4251d81686d3SWen Gong "htt credit total %d\n",
4252d81686d3SWen Gong ep->tx_credits);
4253c8334512SWen Gong ep->ep_ops.ep_tx_credits(htc->ar);
4254d81686d3SWen Gong }
42558348db29SRajkumar Manoharan break;
4256d81686d3SWen Gong }
42572ce9b25cSRajkumar Manoharan case HTT_T2H_MSG_TYPE_CHAN_CHANGE: {
42582ce9b25cSRajkumar Manoharan u32 phymode = __le32_to_cpu(resp->chan_change.phymode);
42592ce9b25cSRajkumar Manoharan u32 freq = __le32_to_cpu(resp->chan_change.freq);
42602ce9b25cSRajkumar Manoharan
4261543b921bSArend Van Spriel ar->tgt_oper_chan = ieee80211_get_channel(ar->hw->wiphy, freq);
42622ce9b25cSRajkumar Manoharan ath10k_dbg(ar, ATH10K_DBG_HTT,
42632ce9b25cSRajkumar Manoharan "htt chan change freq %u phymode %s\n",
42642ce9b25cSRajkumar Manoharan freq, ath10k_wmi_phymode_str(phymode));
4265c545070eSMichal Kazior break;
42662ce9b25cSRajkumar Manoharan }
4267ccec9038SDavid Liu case HTT_T2H_MSG_TYPE_AGGR_CONF:
4268ccec9038SDavid Liu break;
4269b2fdbccdSRajkumar Manoharan case HTT_T2H_MSG_TYPE_TX_FETCH_IND: {
4270b2fdbccdSRajkumar Manoharan struct sk_buff *tx_fetch_ind = skb_copy(skb, GFP_ATOMIC);
4271b2fdbccdSRajkumar Manoharan
4272b2fdbccdSRajkumar Manoharan if (!tx_fetch_ind) {
4273b2fdbccdSRajkumar Manoharan ath10k_warn(ar, "failed to copy htt tx fetch ind\n");
4274b2fdbccdSRajkumar Manoharan break;
4275b2fdbccdSRajkumar Manoharan }
4276b2fdbccdSRajkumar Manoharan skb_queue_tail(&htt->tx_fetch_ind_q, tx_fetch_ind);
4277b2fdbccdSRajkumar Manoharan break;
4278b2fdbccdSRajkumar Manoharan }
4279df94e702SMichal Kazior case HTT_T2H_MSG_TYPE_TX_FETCH_CONFIRM:
4280839ae637SMichal Kazior ath10k_htt_rx_tx_fetch_confirm(ar, skb);
4281839ae637SMichal Kazior break;
4282df94e702SMichal Kazior case HTT_T2H_MSG_TYPE_TX_MODE_SWITCH_IND:
4283839ae637SMichal Kazior ath10k_htt_rx_tx_mode_switch_ind(ar, skb);
42849b158736SMichal Kazior break;
4285cec17c38SAnilkumar Kolli case HTT_T2H_MSG_TYPE_PEER_STATS:
4286cec17c38SAnilkumar Kolli ath10k_htt_fetch_peer_stats(ar, skb);
4287cec17c38SAnilkumar Kolli break;
42889b158736SMichal Kazior case HTT_T2H_MSG_TYPE_EN_STATS:
42895e3dd157SKalle Valo default:
42902358a544SMichal Kazior ath10k_warn(ar, "htt event (%d) not handled\n",
42915e3dd157SKalle Valo resp->hdr.msg_type);
42927aa7a72aSMichal Kazior ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt event: ",
42935e3dd157SKalle Valo skb->data, skb->len);
42945e3dd157SKalle Valo break;
4295dab55d10SWaldemar Rymarkiewicz }
4296e3a91f87SRajkumar Manoharan return true;
42975e3dd157SKalle Valo }
42983f0f7ed4SRajkumar Manoharan EXPORT_SYMBOL(ath10k_htt_t2h_msg_handler);
42996c5151a9SMichal Kazior
ath10k_htt_rx_pktlog_completion_handler(struct ath10k * ar,struct sk_buff * skb)4300afb0bf7fSVivek Natarajan void ath10k_htt_rx_pktlog_completion_handler(struct ath10k *ar,
4301afb0bf7fSVivek Natarajan struct sk_buff *skb)
4302afb0bf7fSVivek Natarajan {
430353a5c9bcSAshok Raj Nagarajan trace_ath10k_htt_pktlog(ar, skb->data, skb->len);
4304afb0bf7fSVivek Natarajan dev_kfree_skb_any(skb);
4305afb0bf7fSVivek Natarajan }
4306afb0bf7fSVivek Natarajan EXPORT_SYMBOL(ath10k_htt_rx_pktlog_completion_handler);
4307afb0bf7fSVivek Natarajan
ath10k_htt_rx_deliver_msdu(struct ath10k * ar,int quota,int budget)4308deba1b9eSRajkumar Manoharan static int ath10k_htt_rx_deliver_msdu(struct ath10k *ar, int quota, int budget)
4309deba1b9eSRajkumar Manoharan {
4310deba1b9eSRajkumar Manoharan struct sk_buff *skb;
4311deba1b9eSRajkumar Manoharan
4312deba1b9eSRajkumar Manoharan while (quota < budget) {
4313deba1b9eSRajkumar Manoharan if (skb_queue_empty(&ar->htt.rx_msdus_q))
4314deba1b9eSRajkumar Manoharan break;
4315deba1b9eSRajkumar Manoharan
431662652555SBob Copeland skb = skb_dequeue(&ar->htt.rx_msdus_q);
4317deba1b9eSRajkumar Manoharan if (!skb)
4318deba1b9eSRajkumar Manoharan break;
4319deba1b9eSRajkumar Manoharan ath10k_process_rx(ar, skb);
4320deba1b9eSRajkumar Manoharan quota++;
4321deba1b9eSRajkumar Manoharan }
4322deba1b9eSRajkumar Manoharan
4323deba1b9eSRajkumar Manoharan return quota;
4324deba1b9eSRajkumar Manoharan }
4325deba1b9eSRajkumar Manoharan
ath10k_htt_rx_hl_indication(struct ath10k * ar,int budget)4326cfee8793SWen Gong int ath10k_htt_rx_hl_indication(struct ath10k *ar, int budget)
4327cfee8793SWen Gong {
4328cfee8793SWen Gong struct htt_resp *resp;
4329cfee8793SWen Gong struct ath10k_htt *htt = &ar->htt;
4330cfee8793SWen Gong struct sk_buff *skb;
4331cfee8793SWen Gong bool release;
4332cfee8793SWen Gong int quota;
4333cfee8793SWen Gong
4334cfee8793SWen Gong for (quota = 0; quota < budget; quota++) {
4335cfee8793SWen Gong skb = skb_dequeue(&htt->rx_indication_head);
4336cfee8793SWen Gong if (!skb)
4337cfee8793SWen Gong break;
4338cfee8793SWen Gong
4339cfee8793SWen Gong resp = (struct htt_resp *)skb->data;
4340cfee8793SWen Gong
4341cfee8793SWen Gong release = ath10k_htt_rx_proc_rx_ind_hl(htt,
4342cfee8793SWen Gong &resp->rx_ind_hl,
4343cfee8793SWen Gong skb,
4344cfee8793SWen Gong HTT_RX_PN_CHECK,
4345cfee8793SWen Gong HTT_RX_NON_TKIP_MIC);
4346cfee8793SWen Gong
4347cfee8793SWen Gong if (release)
4348cfee8793SWen Gong dev_kfree_skb_any(skb);
4349cfee8793SWen Gong
4350cfee8793SWen Gong ath10k_dbg(ar, ATH10K_DBG_HTT, "rx indication poll pending count:%d\n",
4351cfee8793SWen Gong skb_queue_len(&htt->rx_indication_head));
4352cfee8793SWen Gong }
4353cfee8793SWen Gong return quota;
4354cfee8793SWen Gong }
4355cfee8793SWen Gong EXPORT_SYMBOL(ath10k_htt_rx_hl_indication);
4356cfee8793SWen Gong
ath10k_htt_txrx_compl_task(struct ath10k * ar,int budget)43573c97f5deSRajkumar Manoharan int ath10k_htt_txrx_compl_task(struct ath10k *ar, int budget)
43586c5151a9SMichal Kazior {
43593c97f5deSRajkumar Manoharan struct ath10k_htt *htt = &ar->htt;
436059465fe4SRajkumar Manoharan struct htt_tx_done tx_done = {};
4361426e10eaSMichal Kazior struct sk_buff_head tx_ind_q;
43626c5151a9SMichal Kazior struct sk_buff *skb;
4363d742c969SMichal Kazior unsigned long flags;
4364deba1b9eSRajkumar Manoharan int quota = 0, done, ret;
43653c97f5deSRajkumar Manoharan bool resched_napi = false;
43666c5151a9SMichal Kazior
4367426e10eaSMichal Kazior __skb_queue_head_init(&tx_ind_q);
4368da6416caSRajkumar Manoharan
4369deba1b9eSRajkumar Manoharan /* Process pending frames before dequeuing more data
4370deba1b9eSRajkumar Manoharan * from hardware.
43713c97f5deSRajkumar Manoharan */
4372deba1b9eSRajkumar Manoharan quota = ath10k_htt_rx_deliver_msdu(ar, quota, budget);
4373deba1b9eSRajkumar Manoharan if (quota == budget) {
43743c97f5deSRajkumar Manoharan resched_napi = true;
43753c97f5deSRajkumar Manoharan goto exit;
43763c97f5deSRajkumar Manoharan }
43773c97f5deSRajkumar Manoharan
437862652555SBob Copeland while ((skb = skb_dequeue(&htt->rx_in_ord_compl_q))) {
43793c97f5deSRajkumar Manoharan spin_lock_bh(&htt->rx_ring.lock);
4380deba1b9eSRajkumar Manoharan ret = ath10k_htt_rx_in_ord_ind(ar, skb);
43813c97f5deSRajkumar Manoharan spin_unlock_bh(&htt->rx_ring.lock);
43823c97f5deSRajkumar Manoharan
43833c97f5deSRajkumar Manoharan dev_kfree_skb_any(skb);
4384deba1b9eSRajkumar Manoharan if (ret == -EIO) {
43853c97f5deSRajkumar Manoharan resched_napi = true;
43863c97f5deSRajkumar Manoharan goto exit;
43873c97f5deSRajkumar Manoharan }
43883c97f5deSRajkumar Manoharan }
43893c97f5deSRajkumar Manoharan
4390deba1b9eSRajkumar Manoharan while (atomic_read(&htt->num_mpdus_ready)) {
4391deba1b9eSRajkumar Manoharan ret = ath10k_htt_rx_handle_amsdu(htt);
4392deba1b9eSRajkumar Manoharan if (ret == -EIO) {
43933c97f5deSRajkumar Manoharan resched_napi = true;
43943c97f5deSRajkumar Manoharan goto exit;
43953c97f5deSRajkumar Manoharan }
43963c97f5deSRajkumar Manoharan atomic_dec(&htt->num_mpdus_ready);
43973c97f5deSRajkumar Manoharan }
4398deba1b9eSRajkumar Manoharan
4399deba1b9eSRajkumar Manoharan /* Deliver received data after processing data from hardware */
4400deba1b9eSRajkumar Manoharan quota = ath10k_htt_rx_deliver_msdu(ar, quota, budget);
44013c97f5deSRajkumar Manoharan
44023c97f5deSRajkumar Manoharan /* From NAPI documentation:
44033c97f5deSRajkumar Manoharan * The napi poll() function may also process TX completions, in which
44043c97f5deSRajkumar Manoharan * case if it processes the entire TX ring then it should count that
44053c97f5deSRajkumar Manoharan * work as the rest of the budget.
44063c97f5deSRajkumar Manoharan */
44073c97f5deSRajkumar Manoharan if ((quota < budget) && !kfifo_is_empty(&htt->txdone_fifo))
44083c97f5deSRajkumar Manoharan quota = budget;
4409426e10eaSMichal Kazior
441059465fe4SRajkumar Manoharan /* kfifo_get: called only within txrx_tasklet so it's neatly serialized.
441159465fe4SRajkumar Manoharan * From kfifo_get() documentation:
441259465fe4SRajkumar Manoharan * Note that with only one concurrent reader and one concurrent writer,
441359465fe4SRajkumar Manoharan * you don't need extra locking to use these macro.
441459465fe4SRajkumar Manoharan */
441559465fe4SRajkumar Manoharan while (kfifo_get(&htt->txdone_fifo, &tx_done))
441659465fe4SRajkumar Manoharan ath10k_txrx_tx_unref(htt, &tx_done);
44176c5151a9SMichal Kazior
441818f53fe0SRajkumar Manoharan ath10k_mac_tx_push_pending(ar);
441918f53fe0SRajkumar Manoharan
44203c97f5deSRajkumar Manoharan spin_lock_irqsave(&htt->tx_fetch_ind_q.lock, flags);
44213c97f5deSRajkumar Manoharan skb_queue_splice_init(&htt->tx_fetch_ind_q, &tx_ind_q);
44223c97f5deSRajkumar Manoharan spin_unlock_irqrestore(&htt->tx_fetch_ind_q.lock, flags);
44233c97f5deSRajkumar Manoharan
4424426e10eaSMichal Kazior while ((skb = __skb_dequeue(&tx_ind_q))) {
4425426e10eaSMichal Kazior ath10k_htt_rx_tx_fetch_ind(ar, skb);
44266c5151a9SMichal Kazior dev_kfree_skb_any(skb);
44276c5151a9SMichal Kazior }
44286c5151a9SMichal Kazior
44293c97f5deSRajkumar Manoharan exit:
44305c86d97bSRajkumar Manoharan ath10k_htt_rx_msdu_buff_replenish(htt);
44313c97f5deSRajkumar Manoharan /* In case of rx failure or more data to read, report budget
44323c97f5deSRajkumar Manoharan * to reschedule NAPI poll
44333c97f5deSRajkumar Manoharan */
44343c97f5deSRajkumar Manoharan done = resched_napi ? budget : quota;
44353c97f5deSRajkumar Manoharan
44363c97f5deSRajkumar Manoharan return done;
44376c5151a9SMichal Kazior }
44383c97f5deSRajkumar Manoharan EXPORT_SYMBOL(ath10k_htt_txrx_compl_task);
4439a91a626bSGovind Singh
4440a91a626bSGovind Singh static const struct ath10k_htt_rx_ops htt_rx_ops_32 = {
4441a91a626bSGovind Singh .htt_get_rx_ring_size = ath10k_htt_get_rx_ring_size_32,
4442a91a626bSGovind Singh .htt_config_paddrs_ring = ath10k_htt_config_paddrs_ring_32,
4443a91a626bSGovind Singh .htt_set_paddrs_ring = ath10k_htt_set_paddrs_ring_32,
4444a91a626bSGovind Singh .htt_get_vaddr_ring = ath10k_htt_get_vaddr_ring_32,
4445a91a626bSGovind Singh .htt_reset_paddrs_ring = ath10k_htt_reset_paddrs_ring_32,
4446a91a626bSGovind Singh };
4447a91a626bSGovind Singh
4448a91a626bSGovind Singh static const struct ath10k_htt_rx_ops htt_rx_ops_64 = {
4449a91a626bSGovind Singh .htt_get_rx_ring_size = ath10k_htt_get_rx_ring_size_64,
4450a91a626bSGovind Singh .htt_config_paddrs_ring = ath10k_htt_config_paddrs_ring_64,
4451a91a626bSGovind Singh .htt_set_paddrs_ring = ath10k_htt_set_paddrs_ring_64,
4452a91a626bSGovind Singh .htt_get_vaddr_ring = ath10k_htt_get_vaddr_ring_64,
4453a91a626bSGovind Singh .htt_reset_paddrs_ring = ath10k_htt_reset_paddrs_ring_64,
4454a91a626bSGovind Singh };
4455a91a626bSGovind Singh
4456d4e7f553SErik Stromdahl static const struct ath10k_htt_rx_ops htt_rx_ops_hl = {
445733f97472SWen Gong .htt_rx_proc_rx_frag_ind = ath10k_htt_rx_proc_rx_frag_ind_hl,
4458d4e7f553SErik Stromdahl };
4459d4e7f553SErik Stromdahl
ath10k_htt_set_rx_ops(struct ath10k_htt * htt)4460a91a626bSGovind Singh void ath10k_htt_set_rx_ops(struct ath10k_htt *htt)
4461a91a626bSGovind Singh {
4462a91a626bSGovind Singh struct ath10k *ar = htt->ar;
4463a91a626bSGovind Singh
4464de8781d7SGovind Singh if (ar->bus_param.dev_type == ATH10K_DEV_TYPE_HL)
4465d4e7f553SErik Stromdahl htt->rx_ops = &htt_rx_ops_hl;
4466d4e7f553SErik Stromdahl else if (ar->hw_params.target_64bit)
4467a91a626bSGovind Singh htt->rx_ops = &htt_rx_ops_64;
4468a91a626bSGovind Singh else
4469a91a626bSGovind Singh htt->rx_ops = &htt_rx_ops_32;
4470a91a626bSGovind Singh }
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