From patchwork Sat Nov 12 15:40:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 624773 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4B35C4332F for ; Sat, 12 Nov 2022 15:41:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235076AbiKLPlW (ORCPT ); Sat, 12 Nov 2022 10:41:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36616 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235068AbiKLPlT (ORCPT ); Sat, 12 Nov 2022 10:41:19 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 58A001AF1D for ; Sat, 12 Nov 2022 07:41:18 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 1649DB80835 for ; Sat, 12 Nov 2022 15:41:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68F78C433C1; Sat, 12 Nov 2022 15:41:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668267675; bh=JhYIpYjIjRyUHzK6O583UXEHVCKldM7Wmugn14/vtF0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=CItGD8wpuSEBWpYTqNRc8fCibuf2v0LtqW9z7ScedG7bLssbSd1OeKqPeNz8JDkM1 sUw1t1Qskvv+PCO/VJocouxPsFzWsxuYsb9ofRNquflKYiu5JDvpG/mE2wIex2DJ0t gJ4L3boLdd0b/+LGMoViEeu5ACcKFpFczUhe80H96byGOI0qjgJF0uU1dDUmbMp5X0 aJpejlFz+uakEqoT9TX4CScycnfbtSvicQdibosg0UG5Rz9UoEPefmz9mFo9/EWi3y NIagBpD21R6Op0P83mLBkj6VDmKwb84RXZJKfmpRixfFSaRQxSljw3AxCw66X+Vu8t OKjVwj0TC3nWA== From: Lorenzo Bianconi To: nbd@nbd.name Cc: linux-wireless@vger.kernel.org, lorenzo.bianconi@redhat.com, Bo.Jiao@mediatek.com, sujuan.chen@mediatek.com, ryder.Lee@mediatek.com, evelyn.tsai@mediatek.com Subject: [PATCH 3/8] wifi: mt76: add WED RX support to mt76_dma_rx_fill Date: Sat, 12 Nov 2022 16:40:36 +0100 Message-Id: <85669a3636966b2584355730bfbd11b79945876c.1668267241.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.38.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Introduce the capability to refill WED RX buffers in mt76_dma_rx_fill utility routine. Tested-by: Daniel Golle Co-developed-by: Sujuan Chen Signed-off-by: Sujuan Chen Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/dma.c | 33 +++++++++++++++++++----- 1 file changed, 27 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 4239adde4cca..cb6e3b358aca 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -550,14 +550,26 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, struct mt76_queue *q, return ret; } +static struct page_frag_cache * +mt76_dma_rx_get_frag_cache(struct mt76_dev *dev, struct mt76_queue *q) +{ + struct page_frag_cache *rx_page = &q->rx_page; + +#ifdef CONFIG_NET_MEDIATEK_SOC_WED + if ((q->flags & MT_QFLAG_WED) && + FIELD_GET(MT_QFLAG_WED_TYPE, q->flags) == MT76_WED_Q_RX) + rx_page = &dev->mmio.wed.rx_buf_ring.rx_page; +#endif + return rx_page; +} + static int mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q) { - dma_addr_t addr; - void *buf; - int frames = 0; + struct page_frag_cache *rx_page = mt76_dma_rx_get_frag_cache(dev, q); int len = SKB_WITH_OVERHEAD(q->buf_size); - int offset = q->buf_offset; + int frames = 0, offset = q->buf_offset; + dma_addr_t addr; if (!q->ndesc) return 0; @@ -565,9 +577,18 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q) spin_lock_bh(&q->lock); while (q->queued < q->ndesc - 1) { + struct mt76_txwi_cache *t = NULL; struct mt76_queue_buf qbuf; + void *buf = NULL; + + if ((q->flags & MT_QFLAG_WED) && + FIELD_GET(MT_QFLAG_WED_TYPE, q->flags) == MT76_WED_Q_RX) { + t = mt76_get_rxwi(dev); + if (!t) + break; + } - buf = page_frag_alloc(&q->rx_page, q->buf_size, GFP_ATOMIC); + buf = page_frag_alloc(rx_page, q->buf_size, GFP_ATOMIC); if (!buf) break; @@ -580,7 +601,7 @@ mt76_dma_rx_fill(struct mt76_dev *dev, struct mt76_queue *q) qbuf.addr = addr + offset; qbuf.len = len - offset; qbuf.skip_unmap = false; - mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, NULL); + mt76_dma_add_buf(dev, q, &qbuf, 1, 0, buf, t); frames++; }