From patchwork Wed Oct 12 13:26:17 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mohammed Shafi Shajakhan X-Patchwork-Id: 9373017 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id BA7F660772 for ; Wed, 12 Oct 2016 13:26:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AB3E328CAE for ; Wed, 12 Oct 2016 13:26:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9FE02295DF; Wed, 12 Oct 2016 13:26:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 607B528CAE for ; Wed, 12 Oct 2016 13:26:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933237AbcJLN0h (ORCPT ); Wed, 12 Oct 2016 09:26:37 -0400 Received: from wolverine02.qualcomm.com ([199.106.114.251]:43808 "EHLO wolverine02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933110AbcJLN0f (ORCPT ); Wed, 12 Oct 2016 09:26:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=qti.qualcomm.com; i=@qti.qualcomm.com; q=dns/txt; s=qcdkim; t=1476278795; x=1507814795; h=from:to:cc:subject:date:message-id:mime-version; bh=1aNk6/ceas8Nf0jXRr/3/FZoAftMYAc4hcS7ALQm1fc=; b=OpqmVpk8t9oEgsefHYQ+pKR8XGxEWvlz5E+p48yZOw1x9Iil4K827AOz FV1LWTdJxEvEZxG2ANJxrtD/OZmljfrnGj4nKNLAwNqO3m27AzwRaIzTo Z+97rcq1mWfvek/2ywNgVS+FS5ICR3AXYP7vm9s8FzXpKNSZ+agIBWr3e M=; X-IronPort-AV: E=Sophos;i="5.31,482,1473145200"; d="scan'208";a="326381437" Received: from unknown (HELO Ironmsg03-L.qualcomm.com) ([10.53.140.110]) by wolverine02.qualcomm.com with ESMTP; 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: CC: , , "Mohammed Shafi Shajakhan" 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) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.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)