diff options
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r-- | drivers/net/wireless/ath/ath10k/htt.h | 7 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ath10k/htt_tx.c | 78 | ||||
-rw-r--r-- | drivers/net/wireless/ath/ath10k/txrx.c | 9 |
3 files changed, 35 insertions, 59 deletions
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index d1f6eb287a10..874bf44ff7a2 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -1328,12 +1328,11 @@ struct ath10k_htt { unsigned int prefetch_len; - /* Protects access to %pending_tx, %used_msdu_ids */ + /* Protects access to pending_tx, num_pending_tx */ spinlock_t tx_lock; int max_num_pending_tx; int num_pending_tx; - struct sk_buff **pending_tx; - unsigned long *used_msdu_ids; /* bitmap */ + struct idr pending_tx; wait_queue_head_t empty_tx_wq; struct dma_pool *tx_pool; @@ -1424,7 +1423,7 @@ int ath10k_htt_h2t_aggr_cfg_msg(struct ath10k_htt *htt, u8 max_subfrms_amsdu); void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt); -int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt); +int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt, struct sk_buff *skb); void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id); int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *); int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *); diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index 5c64139161fc..2a8667e95c46 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -56,21 +56,18 @@ exit: return ret; } -int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt) +int ath10k_htt_tx_alloc_msdu_id(struct ath10k_htt *htt, struct sk_buff *skb) { struct ath10k *ar = htt->ar; - int msdu_id; + int ret; lockdep_assert_held(&htt->tx_lock); - msdu_id = find_first_zero_bit(htt->used_msdu_ids, - htt->max_num_pending_tx); - if (msdu_id == htt->max_num_pending_tx) - return -ENOBUFS; + ret = idr_alloc(&htt->pending_tx, skb, 0, 0x10000, GFP_ATOMIC); + + ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx alloc msdu_id %d\n", ret); - ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx alloc msdu_id %d\n", msdu_id); - __set_bit(msdu_id, htt->used_msdu_ids); - return msdu_id; + return ret; } void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id) @@ -79,74 +76,53 @@ void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id) lockdep_assert_held(&htt->tx_lock); - if (!test_bit(msdu_id, htt->used_msdu_ids)) - ath10k_warn(ar, "trying to free unallocated msdu_id %d\n", - msdu_id); - ath10k_dbg(ar, ATH10K_DBG_HTT, "htt tx free msdu_id %hu\n", msdu_id); - __clear_bit(msdu_id, htt->used_msdu_ids); + + idr_remove(&htt->pending_tx, msdu_id); } int ath10k_htt_tx_alloc(struct ath10k_htt *htt) { struct ath10k *ar = htt->ar; - spin_lock_init(&htt->tx_lock); - ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt tx max num pending tx %d\n", htt->max_num_pending_tx); - htt->pending_tx = kzalloc(sizeof(*htt->pending_tx) * - htt->max_num_pending_tx, GFP_KERNEL); - if (!htt->pending_tx) - return -ENOMEM; - - htt->used_msdu_ids = kzalloc(sizeof(unsigned long) * - BITS_TO_LONGS(htt->max_num_pending_tx), - GFP_KERNEL); - if (!htt->used_msdu_ids) { - kfree(htt->pending_tx); - return -ENOMEM; - } + spin_lock_init(&htt->tx_lock); + idr_init(&htt->pending_tx); htt->tx_pool = dma_pool_create("ath10k htt tx pool", htt->ar->dev, sizeof(struct ath10k_htt_txbuf), 4, 0); if (!htt->tx_pool) { - kfree(htt->used_msdu_ids); - kfree(htt->pending_tx); + idr_destroy(&htt->pending_tx); return -ENOMEM; } return 0; } -static void ath10k_htt_tx_free_pending(struct ath10k_htt *htt) +static int ath10k_htt_tx_clean_up_pending(int msdu_id, void *skb, void *ctx) { - struct ath10k *ar = htt->ar; + struct ath10k *ar = ctx; + struct ath10k_htt *htt = &ar->htt; struct htt_tx_done tx_done = {0}; - int msdu_id; - - spin_lock_bh(&htt->tx_lock); - for (msdu_id = 0; msdu_id < htt->max_num_pending_tx; msdu_id++) { - if (!test_bit(msdu_id, htt->used_msdu_ids)) - continue; - ath10k_dbg(ar, ATH10K_DBG_HTT, "force cleanup msdu_id %hu\n", - msdu_id); + ath10k_dbg(ar, ATH10K_DBG_HTT, "force cleanup msdu_id %hu\n", msdu_id); - tx_done.discard = 1; - tx_done.msdu_id = msdu_id; + tx_done.discard = 1; + tx_done.msdu_id = msdu_id; - ath10k_txrx_tx_unref(htt, &tx_done); - } + spin_lock_bh(&htt->tx_lock); + ath10k_txrx_tx_unref(htt, &tx_done); spin_unlock_bh(&htt->tx_lock); + + return 0; } void ath10k_htt_tx_free(struct ath10k_htt *htt) { - ath10k_htt_tx_free_pending(htt); - kfree(htt->pending_tx); - kfree(htt->used_msdu_ids); + idr_for_each(&htt->pending_tx, ath10k_htt_tx_clean_up_pending, htt->ar); + idr_destroy(&htt->pending_tx); dma_pool_destroy(htt->tx_pool); } @@ -378,13 +354,12 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) len += sizeof(cmd->mgmt_tx); spin_lock_bh(&htt->tx_lock); - res = ath10k_htt_tx_alloc_msdu_id(htt); + res = ath10k_htt_tx_alloc_msdu_id(htt, msdu); if (res < 0) { spin_unlock_bh(&htt->tx_lock); goto err_tx_dec; } msdu_id = res; - htt->pending_tx[msdu_id] = msdu; spin_unlock_bh(&htt->tx_lock); txdesc = ath10k_htc_alloc_skb(ar, len); @@ -423,7 +398,6 @@ err_free_txdesc: dev_kfree_skb_any(txdesc); err_free_msdu_id: spin_lock_bh(&htt->tx_lock); - htt->pending_tx[msdu_id] = NULL; ath10k_htt_tx_free_msdu_id(htt, msdu_id); spin_unlock_bh(&htt->tx_lock); err_tx_dec: @@ -455,13 +429,12 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu) goto err; spin_lock_bh(&htt->tx_lock); - res = ath10k_htt_tx_alloc_msdu_id(htt); + res = ath10k_htt_tx_alloc_msdu_id(htt, msdu); if (res < 0) { spin_unlock_bh(&htt->tx_lock); goto err_tx_dec; } msdu_id = res; - htt->pending_tx[msdu_id] = msdu; spin_unlock_bh(&htt->tx_lock); prefetch_len = min(htt->prefetch_len, msdu->len); @@ -595,7 +568,6 @@ err_free_txbuf: skb_cb->htt.txbuf_paddr); err_free_msdu_id: spin_lock_bh(&htt->tx_lock); - htt->pending_tx[msdu_id] = NULL; ath10k_htt_tx_free_msdu_id(htt, msdu_id); spin_unlock_bh(&htt->tx_lock); err_tx_dec: diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c index 7579de8e7a8c..3f00cec8aef5 100644 --- a/drivers/net/wireless/ath/ath10k/txrx.c +++ b/drivers/net/wireless/ath/ath10k/txrx.c @@ -64,7 +64,13 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, return; } - msdu = htt->pending_tx[tx_done->msdu_id]; + msdu = idr_find(&htt->pending_tx, tx_done->msdu_id); + if (!msdu) { + ath10k_warn(ar, "received tx completion for invalid msdu_id: %d\n", + tx_done->msdu_id); + return; + } + skb_cb = ATH10K_SKB_CB(msdu); dma_unmap_single(dev, skb_cb->paddr, msdu->len, DMA_TO_DEVICE); @@ -95,7 +101,6 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, /* we do not own the msdu anymore */ exit: - htt->pending_tx[tx_done->msdu_id] = NULL; ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id); __ath10k_htt_tx_dec_pending(htt); if (htt->num_pending_tx == 0) |