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12 Oct 2016 06:26:34 -0700 From: Mohammed Shafi Shajakhan X-IronPort-AV: E=McAfee;i="5700,7163,8315"; a="1240862253" Received: from nasanexm01f.na.qualcomm.com ([10.85.0.32]) by Ironmsg03-L.qualcomm.com with ESMTP/TLS/RC4-SHA; 12 Oct 2016 06:26:34 -0700 Received: from aphydexm01f.ap.qualcomm.com (10.252.127.15) by NASANEXM01F.na.qualcomm.com (10.85.0.32) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Wed, 12 Oct 2016 06:26:33 -0700 Received: from qcmail1.qualcomm.com (10.80.80.8) by aphydexm01f.ap.qualcomm.com (10.252.127.15) with Microsoft SMTP Server (TLS) id 15.0.1178.4; Wed, 12 Oct 2016 18:56:25 +0530 Received: by qcmail1.qualcomm.com (sSMTP sendmail emulation); Wed, 12 Oct 2016 18:56:20 +0530 To: Subject: [PATCH v3 1/2] ath10k: clean up HTT tx buffer allocation and free Date: Wed, 12 Oct 2016 18:56:17 +0530 Message-ID: <1476278778-4253-1-git-send-email-mohammed@qca.qualcomm.com> X-Mailer: git-send-email 1.9.1 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanexm01a.na.qualcomm.com (10.85.0.81) To aphydexm01f.ap.qualcomm.com (10.252.127.15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20161012_062656_804044_6B7492BA X-CRM114-Status: GOOD ( 10.67 ) X-BeenThere: ath10k@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mohammed@codeaurora.org, linux-wireless@vger.kernel.org, Mohammed Shafi Shajakhan Sender: "ath10k" Errors-To: ath10k-bounces+patchwork-ath10k=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Mohammed Shafi Shajakhan cleanup 'ath10k_htt_tx_alloc' by introducing the API's 'ath10k_htt_tx_alloc/free_{cont_txbuf, txdone_fifo} and re-use them whereever needed Signed-off-by: Mohammed Shafi Shajakhan --- drivers/net/wireless/ath/ath10k/htt_tx.c | 75 ++++++++++++++++++++---------- 1 file changed, 50 insertions(+), 25 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c index ae5b33f..ab2ee90 100644 --- a/drivers/net/wireless/ath/ath10k/htt_tx.c +++ b/drivers/net/wireless/ath/ath10k/htt_tx.c @@ -229,6 +229,32 @@ void ath10k_htt_tx_free_msdu_id(struct ath10k_htt *htt, u16 msdu_id) idr_remove(&htt->pending_tx, msdu_id); } +static void ath10k_htt_tx_free_cont_txbuf(struct ath10k_htt *htt) +{ + struct ath10k *ar = htt->ar; + size_t size; + + if (!htt->txbuf.vaddr) + return; + + size = htt->max_num_pending_tx * sizeof(struct ath10k_htt_txbuf); + dma_free_coherent(ar->dev, size, htt->txbuf.vaddr, htt->txbuf.paddr); +} + +static int ath10k_htt_tx_alloc_cont_txbuf(struct ath10k_htt *htt) +{ + struct ath10k *ar = htt->ar; + size_t size; + + 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) + return -ENOMEM; + + return 0; +} + static void ath10k_htt_tx_free_cont_frag_desc(struct ath10k_htt *htt) { size_t size; @@ -310,10 +336,26 @@ static int ath10k_htt_tx_alloc_txq(struct ath10k_htt *htt) return 0; } +static void ath10k_htt_tx_free_txdone_fifo(struct ath10k_htt *htt) +{ + WARN_ON(!kfifo_is_empty(&htt->txdone_fifo)); + kfifo_free(&htt->txdone_fifo); +} + +static int ath10k_htt_tx_alloc_txdone_fifo(struct ath10k_htt *htt) +{ + int ret; + size_t size; + + size = roundup_pow_of_two(htt->max_num_pending_tx); + ret = kfifo_alloc(&htt->txdone_fifo, size, GFP_KERNEL); + return ret; +} + int ath10k_htt_tx_alloc(struct ath10k_htt *htt) { struct ath10k *ar = htt->ar; - int ret, size; + int ret; ath10k_dbg(ar, ATH10K_DBG_BOOT, "htt tx max num pending tx %d\n", htt->max_num_pending_tx); @@ -321,13 +363,9 @@ int ath10k_htt_tx_alloc(struct ath10k_htt *htt) 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; + ret = ath10k_htt_tx_alloc_cont_txbuf(htt); + if (ret) { + ath10k_err(ar, "failed to alloc cont tx buffer: %d\n", ret); goto free_idr_pending_tx; } @@ -343,8 +381,7 @@ int ath10k_htt_tx_alloc(struct ath10k_htt *htt) goto free_frag_desc; } - size = roundup_pow_of_two(htt->max_num_pending_tx); - ret = kfifo_alloc(&htt->txdone_fifo, size, GFP_KERNEL); + ret = ath10k_htt_tx_alloc_txdone_fifo(htt); if (ret) { ath10k_err(ar, "failed to alloc txdone fifo: %d\n", ret); goto free_txq; @@ -359,10 +396,7 @@ 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); + ath10k_htt_tx_free_cont_txbuf(htt); free_idr_pending_tx: idr_destroy(&htt->pending_tx); @@ -388,22 +422,13 @@ static int ath10k_htt_tx_clean_up_pending(int msdu_id, void *skb, void *ctx) 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_cont_txbuf(htt); 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); + ath10k_htt_tx_free_txdone_fifo(htt); } void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)