From patchwork Tue Apr 2 09:47:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 10881309 X-Patchwork-Delegate: nbd@nbd.name Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 37CA7922 for ; Tue, 2 Apr 2019 09:48:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 24CDC286E5 for ; Tue, 2 Apr 2019 09:48:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1931028793; Tue, 2 Apr 2019 09:48:13 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI 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 90839286E5 for ; Tue, 2 Apr 2019 09:48:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729105AbfDBJsL (ORCPT ); Tue, 2 Apr 2019 05:48:11 -0400 Received: from mail.kernel.org ([198.145.29.99]:59624 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729004AbfDBJsL (ORCPT ); Tue, 2 Apr 2019 05:48:11 -0400 Received: from localhost.localdomain (unknown [151.66.48.245]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 44D1C20857; Tue, 2 Apr 2019 09:48:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554198490; bh=VCQ7pWOyscL7OqXGkFZWdFL97BFq7DCTIFqXCb82TlA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gRY9hIT16qeEmxr2PcEIc1wnskUOTcDctXi6AIbrLx5Y92W33v1mOWqHnCahbObI/ d78kBunWK8nFI3uI4BBs7cduSju4uP4w0Y+gx23SUNXHWmdeRhGGSZd6K2ZJMsU0wb zcHqMnbXXHYvJz0Y+HCThOCIAvbHLNICIMjD1F1g= From: Lorenzo Bianconi To: nbd@nbd.name Cc: ryder.lee@mediatek.com, roychl666@gmail.com, lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org Subject: [PATCH v2 1/4] mt76: set txwi_size according to the driver value Date: Tue, 2 Apr 2019 11:47:56 +0200 Message-Id: X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 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 Dynamically allocate txwi since new chipsets will use longer txwi descriptors Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/dma.c | 8 +++++--- drivers/net/wireless/mediatek/mt76/mt76.h | 10 +++++++--- drivers/net/wireless/mediatek/mt76/mt76x02_mac.c | 4 +++- drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c | 1 - drivers/net/wireless/mediatek/mt76/tx.c | 12 +++++++----- 5 files changed, 22 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 7b8a998103d7..e0286fae8e79 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -290,12 +290,14 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, struct mt76_txwi_cache *t; struct sk_buff *iter; dma_addr_t addr; + u8 *txwi; t = mt76_get_txwi(dev); if (!t) { ieee80211_free_txskb(dev->hw, skb); return -ENOMEM; } + txwi = mt76_get_txwi_ptr(dev, t); skb->prev = skb->next = NULL; if (dev->drv->tx_aligned4_skbs) @@ -325,11 +327,11 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, } tx_info.nbuf = n; - dma_sync_single_for_cpu(dev->dev, t->dma_addr, sizeof(t->txwi), + dma_sync_single_for_cpu(dev->dev, t->dma_addr, dev->drv->txwi_size, DMA_TO_DEVICE); - ret = dev->drv->tx_prepare_skb(dev, &t->txwi, skb, qid, wcid, sta, + ret = dev->drv->tx_prepare_skb(dev, txwi, skb, qid, wcid, sta, &tx_info); - dma_sync_single_for_device(dev->dev, t->dma_addr, sizeof(t->txwi), + dma_sync_single_for_device(dev->dev, t->dma_addr, dev->drv->txwi_size, DMA_TO_DEVICE); if (ret < 0) goto unmap; diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index b432da3f55c7..277f6b754693 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -228,12 +228,10 @@ struct mt76_txq { }; struct mt76_txwi_cache { - u32 txwi[8]; - dma_addr_t dma_addr; struct list_head list; + dma_addr_t dma_addr; }; - struct mt76_rx_tid { struct rcu_head rcu_head; @@ -613,6 +611,12 @@ void mt76_seq_puts_array(struct seq_file *file, const char *str, int mt76_eeprom_init(struct mt76_dev *dev, int len); void mt76_eeprom_override(struct mt76_dev *dev); +static inline u8 * +mt76_get_txwi_ptr(struct mt76_dev *dev, struct mt76_txwi_cache *t) +{ + return (u8 *)t - dev->drv->txwi_size; +} + /* increment with wrap-around */ static inline int mt76_incr(int val, int size) { diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c index 1eb669ccd5a7..ffedb8e5d227 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c @@ -760,6 +760,7 @@ void mt76x02_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid, { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); struct mt76x02_txwi *txwi; + u8 *txwi_ptr; if (!e->txwi) { dev_kfree_skb_any(e->skb); @@ -768,7 +769,8 @@ void mt76x02_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid, mt76x02_mac_poll_tx_status(dev, false); - txwi = (struct mt76x02_txwi *) &e->txwi->txwi; + txwi_ptr = mt76_get_txwi_ptr(mdev, e->txwi); + txwi = (struct mt76x02_txwi *)txwi_ptr; trace_mac_txdone_add(dev, txwi->wcid, txwi->pktid); mt76_tx_complete_skb(mdev, e->skb); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c index 3116aa935ee4..518dea4b9425 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mmio.c @@ -174,7 +174,6 @@ int mt76x02_dma_init(struct mt76x02_dev *dev) struct mt76_queue *q; void *status_fifo; - BUILD_BUG_ON(sizeof(t->txwi) < sizeof(struct mt76x02_txwi)); BUILD_BUG_ON(sizeof(struct mt76x02_rxwi) > MT_RX_HEADROOM); fifo_size = roundup_pow_of_two(32 * sizeof(struct mt76x02_tx_status)); diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c index 2c82db0b5834..08587d262469 100644 --- a/drivers/net/wireless/mediatek/mt76/tx.c +++ b/drivers/net/wireless/mediatek/mt76/tx.c @@ -21,15 +21,17 @@ mt76_alloc_txwi(struct mt76_dev *dev) { struct mt76_txwi_cache *t; dma_addr_t addr; + u8 *txwi; int size; - size = (sizeof(*t) + L1_CACHE_BYTES - 1) & ~(L1_CACHE_BYTES - 1); - t = devm_kzalloc(dev->dev, size, GFP_ATOMIC); - if (!t) + size = L1_CACHE_ALIGN(dev->drv->txwi_size + sizeof(*t)); + txwi = devm_kzalloc(dev->dev, size, GFP_ATOMIC); + if (!txwi) return NULL; - addr = dma_map_single(dev->dev, &t->txwi, sizeof(t->txwi), + addr = dma_map_single(dev->dev, txwi, dev->drv->txwi_size, DMA_TO_DEVICE); + t = (struct mt76_txwi_cache *)(txwi + dev->drv->txwi_size); t->dma_addr = addr; return t; @@ -78,7 +80,7 @@ void mt76_tx_free(struct mt76_dev *dev) struct mt76_txwi_cache *t; while ((t = __mt76_get_txwi(dev)) != NULL) - dma_unmap_single(dev->dev, t->dma_addr, sizeof(t->txwi), + dma_unmap_single(dev->dev, t->dma_addr, dev->drv->txwi_size, DMA_TO_DEVICE); } From patchwork Tue Apr 2 09:47:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 10881311 X-Patchwork-Delegate: nbd@nbd.name Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 57AA7922 for ; Tue, 2 Apr 2019 09:48:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4420D28640 for ; Tue, 2 Apr 2019 09:48:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3833528785; Tue, 2 Apr 2019 09:48:16 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI 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 5371428640 for ; Tue, 2 Apr 2019 09:48:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729178AbfDBJsO (ORCPT ); Tue, 2 Apr 2019 05:48:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:59636 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729151AbfDBJsO (ORCPT ); Tue, 2 Apr 2019 05:48:14 -0400 Received: from localhost.localdomain (unknown [151.66.48.245]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A449F207E0; Tue, 2 Apr 2019 09:48:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554198493; bh=JqURCqDSHqO3lrOh826461hUgG0VVUIZXAVLB9ITokM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=UfdEN7xKlEugcYB1qX/1yDKhnDudMxn6yyTInxZVuxusR+wXmmLYZUyp+fmOuIbrH USySfMeO/0FoRkZn3HhSc1EjWi0FfAwrv+tBo0AOmmHxO1NF9IODFsCeRUgKY2fmAo RRtNu1DPHcL4eoUl3o3JKPg6TjnE28FHERyC5yKI= From: Lorenzo Bianconi To: nbd@nbd.name Cc: ryder.lee@mediatek.com, roychl666@gmail.com, lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org Subject: [PATCH v2 2/4] mt76: add skb pointer to mt76_tx_info Date: Tue, 2 Apr 2019 11:47:57 +0200 Message-Id: <0179a6b2248c304ca379f296c3c5104180c1cc1c.1554194917.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 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 Pass skb pointer to tx_prepare_skb through mt76_tx_info data structure. This is a preliminary patch to properly support dma error path for new chipsets (e.g. 7615) Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/dma.c | 11 ++++++----- drivers/net/wireless/mediatek/mt76/mt76.h | 4 ++-- .../net/wireless/mediatek/mt76/mt7603/mac.c | 11 ++++++----- .../net/wireless/mediatek/mt76/mt7603/mt7603.h | 4 ++-- drivers/net/wireless/mediatek/mt76/mt76x02.h | 4 ++-- .../net/wireless/mediatek/mt76/mt76x02_txrx.c | 12 ++++++------ .../net/wireless/mediatek/mt76/mt76x02_usb.h | 4 ++-- .../wireless/mediatek/mt76/mt76x02_usb_core.c | 18 +++++++++--------- drivers/net/wireless/mediatek/mt76/usb.c | 14 ++++++++------ 9 files changed, 43 insertions(+), 39 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index e0286fae8e79..54e6d985d384 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -284,7 +284,9 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, struct ieee80211_sta *sta) { struct mt76_queue *q = dev->q_tx[qid].q; - struct mt76_tx_info tx_info = {}; + struct mt76_tx_info tx_info = { + .skb = skb, + }; int len, n = 0, ret = -ENOMEM; struct mt76_queue_entry e; struct mt76_txwi_cache *t; @@ -329,8 +331,7 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, dma_sync_single_for_cpu(dev->dev, t->dma_addr, dev->drv->txwi_size, DMA_TO_DEVICE); - ret = dev->drv->tx_prepare_skb(dev, txwi, skb, qid, wcid, sta, - &tx_info); + ret = dev->drv->tx_prepare_skb(dev, txwi, qid, wcid, sta, &tx_info); dma_sync_single_for_device(dev->dev, t->dma_addr, dev->drv->txwi_size, DMA_TO_DEVICE); if (ret < 0) @@ -342,7 +343,7 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, } return mt76_dma_add_buf(dev, q, tx_info.buf, tx_info.nbuf, - tx_info.info, skb, t); + tx_info.info, tx_info.skb, t); unmap: for (n--; n > 0; n--) @@ -350,7 +351,7 @@ mt76_dma_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, tx_info.buf[n].len, DMA_TO_DEVICE); free: - e.skb = skb; + e.skb = tx_info.skb; e.txwi = t; dev->drv->tx_complete_skb(dev, qid, &e); mt76_put_txwi(dev, t); diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 277f6b754693..91f9433bf979 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -85,6 +85,7 @@ struct mt76_queue_buf { struct mt76_tx_info { struct mt76_queue_buf buf[32]; + struct sk_buff *skb; int nbuf; u32 info; }; @@ -290,8 +291,7 @@ struct mt76_driver_ops { void (*update_survey)(struct mt76_dev *dev); int (*tx_prepare_skb)(struct mt76_dev *dev, void *txwi_ptr, - struct sk_buff *skb, enum mt76_txq_id qid, - struct mt76_wcid *wcid, + enum mt76_txq_id qid, struct mt76_wcid *wcid, struct ieee80211_sta *sta, struct mt76_tx_info *tx_info); diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c index 5f800467c628..b38b89a89322 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c @@ -937,13 +937,13 @@ mt7603_mac_write_txwi(struct mt7603_dev *dev, __le32 *txwi, } int mt7603_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, - struct sk_buff *skb, enum mt76_txq_id qid, - struct mt76_wcid *wcid, struct ieee80211_sta *sta, + enum mt76_txq_id qid, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, struct mt76_tx_info *tx_info) { struct mt7603_dev *dev = container_of(mdev, struct mt7603_dev, mt76); struct mt7603_sta *msta = container_of(wcid, struct mt7603_sta, wcid); - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_info->skb); struct ieee80211_key_conf *key = info->control.hw_key; int pid; @@ -959,7 +959,7 @@ int mt7603_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, mt7603_wtbl_set_ps(dev, msta, false); } - pid = mt76_tx_status_skb_add(mdev, wcid, skb); + pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); if (info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE) { spin_lock_bh(&dev->mt76.lock); @@ -969,7 +969,8 @@ int mt7603_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, spin_unlock_bh(&dev->mt76.lock); } - mt7603_mac_write_txwi(dev, txwi_ptr, skb, qid, wcid, sta, pid, key); + mt7603_mac_write_txwi(dev, txwi_ptr, tx_info->skb, qid, wcid, + sta, pid, key); return 0; } diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h b/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h index 9cc8ca7a4d1c..72352559a212 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h +++ b/drivers/net/wireless/mediatek/mt76/mt7603/mt7603.h @@ -223,8 +223,8 @@ void mt7603_wtbl_set_smps(struct mt7603_dev *dev, struct mt7603_sta *sta, void mt7603_filter_tx(struct mt7603_dev *dev, int idx, bool abort); int mt7603_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, - struct sk_buff *skb, enum mt76_txq_id qid, - struct mt76_wcid *wcid, struct ieee80211_sta *sta, + enum mt76_txq_id qid, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, struct mt76_tx_info *tx_info); void mt7603_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid, diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02.h b/drivers/net/wireless/mediatek/mt76/mt76x02.h index 0d817a142e76..fdf2f32b26dc 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02.h @@ -184,8 +184,8 @@ irqreturn_t mt76x02_irq_handler(int irq, void *dev_instance); void mt76x02_tx(struct ieee80211_hw *hw, struct ieee80211_tx_control *control, struct sk_buff *skb); int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi, - struct sk_buff *skb, enum mt76_txq_id qid, - struct mt76_wcid *wcid, struct ieee80211_sta *sta, + enum mt76_txq_id qid, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, struct mt76_tx_info *tx_info); void mt76x02_sw_scan(struct ieee80211_hw *hw, struct ieee80211_vif *vif, const u8 *mac); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c b/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c index dd7d04b9b8db..cf7abd9b7d2e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_txrx.c @@ -147,12 +147,12 @@ bool mt76x02_tx_status_data(struct mt76_dev *mdev, u8 *update) EXPORT_SYMBOL_GPL(mt76x02_tx_status_data); int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, - struct sk_buff *skb, enum mt76_txq_id qid, - struct mt76_wcid *wcid, struct ieee80211_sta *sta, + enum mt76_txq_id qid, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, struct mt76_tx_info *tx_info) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx_info->skb->data; struct mt76x02_txwi *txwi = txwi_ptr; int hdrlen, len, pid, qsel = MT_QSEL_EDCA; @@ -160,10 +160,10 @@ int mt76x02_tx_prepare_skb(struct mt76_dev *mdev, void *txwi_ptr, mt76x02_mac_wcid_set_drop(dev, wcid->idx, false); hdrlen = ieee80211_hdrlen(hdr->frame_control); - len = skb->len - (hdrlen & 2); - mt76x02_mac_write_txwi(dev, txwi, skb, wcid, sta, len); + len = tx_info->skb->len - (hdrlen & 2); + mt76x02_mac_write_txwi(dev, txwi, tx_info->skb, wcid, sta, len); - pid = mt76_tx_status_skb_add(mdev, wcid, skb); + pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); txwi->pktid = pid; if (pid >= MT_PACKET_ID_FIRST) diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_usb.h b/drivers/net/wireless/mediatek/mt76/mt76x02_usb.h index a012410c5ae7..7b53f9e57f29 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_usb.h +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_usb.h @@ -26,8 +26,8 @@ int mt76x02u_mcu_fw_send_data(struct mt76x02_dev *dev, const void *data, int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags); int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data, - struct sk_buff *skb, enum mt76_txq_id qid, - struct mt76_wcid *wcid, struct ieee80211_sta *sta, + enum mt76_txq_id qid, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, struct mt76_tx_info *tx_info); void mt76x02u_tx_complete_skb(struct mt76_dev *mdev, enum mt76_txq_id qid, struct mt76_queue_entry *e); diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c index c403218533da..818b96064dec 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c +++ b/drivers/net/wireless/mediatek/mt76/mt76x02_usb_core.c @@ -72,23 +72,23 @@ int mt76x02u_skb_dma_info(struct sk_buff *skb, int port, u32 flags) } int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data, - struct sk_buff *skb, enum mt76_txq_id qid, - struct mt76_wcid *wcid, struct ieee80211_sta *sta, + enum mt76_txq_id qid, struct mt76_wcid *wcid, + struct ieee80211_sta *sta, struct mt76_tx_info *tx_info) { struct mt76x02_dev *dev = container_of(mdev, struct mt76x02_dev, mt76); - int pid, len = skb->len, ep = q2ep(mdev->q_tx[qid].q->hw_idx); + int pid, len = tx_info->skb->len, ep = q2ep(mdev->q_tx[qid].q->hw_idx); struct mt76x02_txwi *txwi; enum mt76_qsel qsel; u32 flags; - mt76_insert_hdr_pad(skb); + mt76_insert_hdr_pad(tx_info->skb); - txwi = (struct mt76x02_txwi *)(skb->data - sizeof(struct mt76x02_txwi)); - mt76x02_mac_write_txwi(dev, txwi, skb, wcid, sta, len); - skb_push(skb, sizeof(struct mt76x02_txwi)); + txwi = (struct mt76x02_txwi *)(tx_info->skb->data - sizeof(*txwi)); + mt76x02_mac_write_txwi(dev, txwi, tx_info->skb, wcid, sta, len); + skb_push(tx_info->skb, sizeof(*txwi)); - pid = mt76_tx_status_skb_add(mdev, wcid, skb); + pid = mt76_tx_status_skb_add(mdev, wcid, tx_info->skb); txwi->pktid = pid; if (pid >= MT_PACKET_ID_FIRST || ep == MT_EP_OUT_HCCA) @@ -101,7 +101,7 @@ int mt76x02u_tx_prepare_skb(struct mt76_dev *mdev, void *data, if (!wcid || wcid->hw_key_idx == 0xff || wcid->sw_iv) flags |= MT_TXD_INFO_WIV; - return mt76x02u_skb_dma_info(skb, WLAN_PORT, flags); + return mt76x02u_skb_dma_info(tx_info->skb, WLAN_PORT, flags); } EXPORT_SYMBOL_GPL(mt76x02u_tx_prepare_skb); diff --git a/drivers/net/wireless/mediatek/mt76/usb.c b/drivers/net/wireless/mediatek/mt76/usb.c index 3b5d30eaa31f..070eef631c43 100644 --- a/drivers/net/wireless/mediatek/mt76/usb.c +++ b/drivers/net/wireless/mediatek/mt76/usb.c @@ -735,7 +735,9 @@ mt76u_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, struct ieee80211_sta *sta) { struct mt76_queue *q = dev->q_tx[qid].q; - struct urb *urb; + struct mt76_tx_info tx_info = { + .skb = skb, + }; u16 idx = q->tail; int err; @@ -743,20 +745,20 @@ mt76u_tx_queue_skb(struct mt76_dev *dev, enum mt76_txq_id qid, return -ENOSPC; skb->prev = skb->next = NULL; - err = dev->drv->tx_prepare_skb(dev, NULL, skb, qid, wcid, sta, NULL); + err = dev->drv->tx_prepare_skb(dev, NULL, qid, wcid, sta, &tx_info); if (err < 0) return err; - urb = q->entry[idx].urb; - err = mt76u_tx_setup_buffers(dev, skb, urb); + err = mt76u_tx_setup_buffers(dev, tx_info.skb, q->entry[idx].urb); if (err < 0) return err; mt76u_fill_bulk_urb(dev, USB_DIR_OUT, q2ep(q->hw_idx), - urb, mt76u_complete_tx, &q->entry[idx]); + q->entry[idx].urb, mt76u_complete_tx, + &q->entry[idx]); q->tail = (q->tail + 1) % q->ndesc; - q->entry[idx].skb = skb; + q->entry[idx].skb = tx_info.skb; q->queued++; return idx; From patchwork Tue Apr 2 09:47:58 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 10881313 X-Patchwork-Delegate: nbd@nbd.name Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5F46B922 for ; Tue, 2 Apr 2019 09:48:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4AF6828640 for ; Tue, 2 Apr 2019 09:48:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3F3A328785; Tue, 2 Apr 2019 09:48:18 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI 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 E016228640 for ; Tue, 2 Apr 2019 09:48:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729004AbfDBJsR (ORCPT ); Tue, 2 Apr 2019 05:48:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:59648 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729151AbfDBJsR (ORCPT ); Tue, 2 Apr 2019 05:48:17 -0400 Received: from localhost.localdomain (unknown [151.66.48.245]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 34FC0207E0; Tue, 2 Apr 2019 09:48:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554198496; bh=EgQ1tc/xvELyeBzm34bNPcQ+JpDcCklS2Fk94JtC3qQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=my4GkCn1q/IGL1uaGxepC9dsypyOGl1uR19px45xgqxzzhd+7Ay1Ao+uGTx3a0xmg f4IbaP0sGfn6ljcK35Izr01F63WzU4e7FAgqQ2KlJ382N/DQeJOeP6lkk4s58p6fmY UrUNVUsbIGi1MjZrKv3/R0q0x9LsG78o5rj/G0+M= From: Lorenzo Bianconi To: nbd@nbd.name Cc: ryder.lee@mediatek.com, roychl666@gmail.com, lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org Subject: [PATCH v2 3/4] mt76: dma: introduce skb field in mt76_txwi_cache Date: Tue, 2 Apr 2019 11:47:58 +0200 Message-Id: X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 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 Introduce skb field in mt76_txwi_cache. Moreover add txwi_flags to mt76_driver_ops since new chipsets will release mt76_txwi_cache/skbs at tx completion instead of dma one. This is a preliminary patch to add mt7615 support Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/dma.c | 3 ++- drivers/net/wireless/mediatek/mt76/mt76.h | 5 +++++ drivers/net/wireless/mediatek/mt76/tx.c | 1 + 3 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 54e6d985d384..2bc5dd9a9e9f 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -176,7 +176,8 @@ mt76_dma_tx_cleanup(struct mt76_dev *dev, enum mt76_txq_id qid, bool flush) } if (entry.txwi) { - mt76_put_txwi(dev, entry.txwi); + if (!(dev->drv->txwi_flags & MT_TXWI_NO_FREE)) + mt76_put_txwi(dev, entry.txwi); wake = !flush; } diff --git a/drivers/net/wireless/mediatek/mt76/mt76.h b/drivers/net/wireless/mediatek/mt76/mt76.h index 91f9433bf979..665f843008d0 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76.h +++ b/drivers/net/wireless/mediatek/mt76/mt76.h @@ -231,6 +231,8 @@ struct mt76_txq { struct mt76_txwi_cache { struct list_head list; dma_addr_t dma_addr; + + struct sk_buff *skb; }; struct mt76_rx_tid { @@ -284,8 +286,11 @@ struct mt76_hw_cap { bool has_5ghz; }; +#define MT_TXWI_NO_FREE BIT(0) + struct mt76_driver_ops { bool tx_aligned4_skbs; + u32 txwi_flags; u16 txwi_size; void (*update_survey)(struct mt76_dev *dev); diff --git a/drivers/net/wireless/mediatek/mt76/tx.c b/drivers/net/wireless/mediatek/mt76/tx.c index 08587d262469..6a0c4b8a649d 100644 --- a/drivers/net/wireless/mediatek/mt76/tx.c +++ b/drivers/net/wireless/mediatek/mt76/tx.c @@ -74,6 +74,7 @@ mt76_put_txwi(struct mt76_dev *dev, struct mt76_txwi_cache *t) list_add(&t->list, &dev->txwi_cache); spin_unlock_bh(&dev->lock); } +EXPORT_SYMBOL_GPL(mt76_put_txwi); void mt76_tx_free(struct mt76_dev *dev) { From patchwork Tue Apr 2 09:47:59 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 10881315 X-Patchwork-Delegate: nbd@nbd.name Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1C96515AC for ; Tue, 2 Apr 2019 09:48:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 09BF928640 for ; Tue, 2 Apr 2019 09:48:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F233628785; Tue, 2 Apr 2019 09:48:20 +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=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI 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 A13BF28640 for ; Tue, 2 Apr 2019 09:48:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729217AbfDBJsT (ORCPT ); Tue, 2 Apr 2019 05:48:19 -0400 Received: from mail.kernel.org ([198.145.29.99]:59664 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729151AbfDBJsT (ORCPT ); Tue, 2 Apr 2019 05:48:19 -0400 Received: from localhost.localdomain (unknown [151.66.48.245]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A42D520857; Tue, 2 Apr 2019 09:48:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554198498; bh=hAL9ISsc7ncl2bB3Ee4MLqEW56xBZw28p/7/TQn2PRQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m9rfwGTYqRVPjrCVNljdwhsYArerRaI/r4/7xZajMuZpB/vrR8v5jIhZy70InPVzl mFfr/fvKlDIKB6gLbD6H+fJlugA9UvNhx+btwuVDcGHTzmpptVVEL8foYZrg1c2zHD VrzjuGQByqwSkDpvLkoFiwvsMMYhTXNtgGRXyBiY= From: Lorenzo Bianconi To: nbd@nbd.name Cc: ryder.lee@mediatek.com, roychl666@gmail.com, lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org Subject: [PATCH v2 4/4] mt76: dma: add skb check for dummy pointer Date: Tue, 2 Apr 2019 11:47:59 +0200 Message-Id: X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 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 Introduce skb check for dummy address in mt76_dma_tx_cleanup_idx. This is a preliminary patch to add support for new chipsets (e.g. 7615) Signed-off-by: Lorenzo Bianconi --- drivers/net/wireless/mediatek/mt76/dma.c | 9 +++++---- drivers/net/wireless/mediatek/mt76/dma.h | 2 ++ 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/mediatek/mt76/dma.c b/drivers/net/wireless/mediatek/mt76/dma.c index 2bc5dd9a9e9f..4ed3ea53a16d 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.c +++ b/drivers/net/wireless/mediatek/mt76/dma.c @@ -18,8 +18,6 @@ #include "mt76.h" #include "dma.h" -#define DMA_DUMMY_TXWI ((void *) ~0) - static int mt76_dma_alloc_queue(struct mt76_dev *dev, struct mt76_queue *q, int idx, int n_desc, int bufsize, @@ -67,7 +65,7 @@ mt76_dma_add_buf(struct mt76_dev *dev, struct mt76_queue *q, int i, idx = -1; if (txwi) - q->entry[q->head].txwi = DMA_DUMMY_TXWI; + q->entry[q->head].txwi = DMA_DUMMY_DATA; for (i = 0; i < nbufs; i += 2, buf += 2) { u32 buf0 = buf[0].addr, buf1 = 0; @@ -126,9 +124,12 @@ mt76_dma_tx_cleanup_idx(struct mt76_dev *dev, struct mt76_queue *q, int idx, DMA_TO_DEVICE); } - if (e->txwi == DMA_DUMMY_TXWI) + if (e->txwi == DMA_DUMMY_DATA) e->txwi = NULL; + if (e->skb == DMA_DUMMY_DATA) + e->skb = NULL; + *prev_e = *e; memset(e, 0, sizeof(*e)); } diff --git a/drivers/net/wireless/mediatek/mt76/dma.h b/drivers/net/wireless/mediatek/mt76/dma.h index e3292df5e9b2..03dd2bafa4e8 100644 --- a/drivers/net/wireless/mediatek/mt76/dma.h +++ b/drivers/net/wireless/mediatek/mt76/dma.h @@ -16,6 +16,8 @@ #ifndef __MT76_DMA_H #define __MT76_DMA_H +#define DMA_DUMMY_DATA ((void *)~0) + #define MT_RING_SIZE 0x10 #define MT_DMA_CTL_SD_LEN1 GENMASK(13, 0)