Exemplo n.º 1
0
int ath10k_htt_tx_alloc(struct ath10k_htt *htt)
{
	struct ath10k *ar = htt->ar;
	int ret, size;

	ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt tx max num pending tx %d\n",
		   htt->max_num_pending_tx);

	spin_lock_init(&htt->tx_lock);
	idr_init(&htt->pending_tx);

	size = htt->max_num_pending_tx * sizeof(struct ath10k_htt_txbuf);
	htt->txbuf.vaddr = dma_alloc_coherent(ar->dev, size,
						  &htt->txbuf.paddr,
						  GFP_KERNEL);
	if (!htt->txbuf.vaddr) {
		ath10k_err(ar, "failed to alloc tx buffer\n");
		ret = -ENOMEM;
		goto free_idr_pending_tx;
	}

	ret = ath10k_htt_tx_alloc_cont_frag_desc(htt);
	if (ret) {
		ath10k_err(ar, "failed to alloc cont frag desc: %d\n", ret);
		goto free_txbuf;
	}

	ret = ath10k_htt_tx_alloc_txq(htt);
	if (ret) {
		ath10k_err(ar, "failed to alloc txq: %d\n", ret);
		goto free_frag_desc;
	}

	size = roundup_pow_of_two(htt->max_num_pending_tx);
	ret = kfifo_alloc(&htt->txdone_fifo, size, GFP_KERNEL);
	if (ret) {
		ath10k_err(ar, "failed to alloc txdone fifo: %d\n", ret);
		goto free_txq;
	}

	return 0;

free_txq:
	ath10k_htt_tx_free_txq(htt);

free_frag_desc:
	ath10k_htt_tx_free_cont_frag_desc(htt);

free_txbuf:
	size = htt->max_num_pending_tx *
			  sizeof(struct ath10k_htt_txbuf);
	dma_free_coherent(htt->ar->dev, size, htt->txbuf.vaddr,
			  htt->txbuf.paddr);

free_idr_pending_tx:
	idr_destroy(&htt->pending_tx);

	return ret;
}
Exemplo n.º 2
0
void ath10k_htt_tx_free(struct ath10k_htt *htt)
{
	int size;

	idr_for_each(&htt->pending_tx, ath10k_htt_tx_clean_up_pending, htt->ar);
	idr_destroy(&htt->pending_tx);

	if (htt->txbuf.vaddr) {
		size = htt->max_num_pending_tx *
				  sizeof(struct ath10k_htt_txbuf);
		dma_free_coherent(htt->ar->dev, size, htt->txbuf.vaddr,
				  htt->txbuf.paddr);
	}

	ath10k_htt_tx_free_txq(htt);
	ath10k_htt_tx_free_cont_frag_desc(htt);
}
Exemplo n.º 3
0
void ath10k_htt_tx_free(struct ath10k_htt *htt)
{
	int size;

	tasklet_kill(&htt->txrx_compl_task);

	idr_for_each(&htt->pending_tx, ath10k_htt_tx_clean_up_pending, htt->ar);
	idr_destroy(&htt->pending_tx);

	if (htt->txbuf.vaddr) {
		size = htt->max_num_pending_tx *
				  sizeof(struct ath10k_htt_txbuf);
		dma_free_coherent(htt->ar->dev, size, htt->txbuf.vaddr,
				  htt->txbuf.paddr);
	}

	ath10k_htt_tx_free_txq(htt);
	ath10k_htt_tx_free_cont_frag_desc(htt);
	WARN_ON(!kfifo_is_empty(&htt->txdone_fifo));
	kfifo_free(&htt->txdone_fifo);
}