From: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
To: <davem@davemloft.net>, <yisen.zhuang@huawei.com>,
<salil.mehta@huawei.com>, <xiaojiangfeng@huawei.com>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<leeyou.li@huawei.com>, <xiaowei774@huawei.com>,
<nixiaoming@huawei.com>
Subject: [PATCH v1 3/3] net: hisilicon: Fix dma_map_single failed on arm64
Date: Sat, 3 Aug 2019 20:31:41 +0800 [thread overview]
Message-ID: <1564835501-90257-4-git-send-email-xiaojiangfeng@huawei.com> (raw)
In-Reply-To: <1564835501-90257-1-git-send-email-xiaojiangfeng@huawei.com>
On the arm64 platform, executing "ifconfig eth0 up" will fail,
returning "ifconfig: SIOCSIFFLAGS: Input/output error."
ndev->dev is not initialized, dma_map_single->get_dma_ops->
dummy_dma_ops->__dummy_map_page will return DMA_ERROR_CODE
directly, so when we use dma_map_single, the first parameter
is to use the device of platform_device.
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
---
drivers/net/ethernet/hisilicon/hip04_eth.c | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index d775b98..c841674 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -220,6 +220,7 @@ struct hip04_priv {
unsigned int reg_inten;
struct napi_struct napi;
+ struct device *dev;
struct net_device *ndev;
struct tx_desc *tx_desc;
@@ -465,7 +466,7 @@ static int hip04_tx_reclaim(struct net_device *ndev, bool force)
}
if (priv->tx_phys[tx_tail]) {
- dma_unmap_single(&ndev->dev, priv->tx_phys[tx_tail],
+ dma_unmap_single(priv->dev, priv->tx_phys[tx_tail],
priv->tx_skb[tx_tail]->len,
DMA_TO_DEVICE);
priv->tx_phys[tx_tail] = 0;
@@ -516,8 +517,8 @@ static void hip04_start_tx_timer(struct hip04_priv *priv)
return NETDEV_TX_BUSY;
}
- phys = dma_map_single(&ndev->dev, skb->data, skb->len, DMA_TO_DEVICE);
- if (dma_mapping_error(&ndev->dev, phys)) {
+ phys = dma_map_single(priv->dev, skb->data, skb->len, DMA_TO_DEVICE);
+ if (dma_mapping_error(priv->dev, phys)) {
dev_kfree_skb(skb);
return NETDEV_TX_OK;
}
@@ -596,7 +597,7 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
goto refill;
}
- dma_unmap_single(&ndev->dev, priv->rx_phys[priv->rx_head],
+ dma_unmap_single(priv->dev, priv->rx_phys[priv->rx_head],
RX_BUF_SIZE, DMA_FROM_DEVICE);
priv->rx_phys[priv->rx_head] = 0;
@@ -625,9 +626,9 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
buf = netdev_alloc_frag(priv->rx_buf_size);
if (!buf)
goto done;
- phys = dma_map_single(&ndev->dev, buf,
+ phys = dma_map_single(priv->dev, buf,
RX_BUF_SIZE, DMA_FROM_DEVICE);
- if (dma_mapping_error(&ndev->dev, phys))
+ if (dma_mapping_error(priv->dev, phys))
goto done;
priv->rx_buf[priv->rx_head] = buf;
priv->rx_phys[priv->rx_head] = phys;
@@ -730,9 +731,9 @@ static int hip04_mac_open(struct net_device *ndev)
for (i = 0; i < RX_DESC_NUM; i++) {
dma_addr_t phys;
- phys = dma_map_single(&ndev->dev, priv->rx_buf[i],
+ phys = dma_map_single(priv->dev, priv->rx_buf[i],
RX_BUF_SIZE, DMA_FROM_DEVICE);
- if (dma_mapping_error(&ndev->dev, phys))
+ if (dma_mapping_error(priv->dev, phys))
return -EIO;
priv->rx_phys[i] = phys;
@@ -766,7 +767,7 @@ static int hip04_mac_stop(struct net_device *ndev)
for (i = 0; i < RX_DESC_NUM; i++) {
if (priv->rx_phys[i]) {
- dma_unmap_single(&ndev->dev, priv->rx_phys[i],
+ dma_unmap_single(priv->dev, priv->rx_phys[i],
RX_BUF_SIZE, DMA_FROM_DEVICE);
priv->rx_phys[i] = 0;
}
@@ -909,6 +910,7 @@ static int hip04_mac_probe(struct platform_device *pdev)
return -ENOMEM;
priv = netdev_priv(ndev);
+ priv->dev = d;
priv->ndev = ndev;
platform_set_drvdata(pdev, ndev);
SET_NETDEV_DEV(ndev, &pdev->dev);
--
1.8.5.6
next prev parent reply other threads:[~2019-08-03 12:32 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-03 12:31 [PATCH v1 0/3] net: hisilicon: Fix a few problems with hip04_eth Jiangfeng Xiao
2019-08-03 12:31 ` [PATCH v1 1/3] net: hisilicon: make hip04_tx_reclaim non-reentrant Jiangfeng Xiao
2019-08-06 0:46 ` Jakub Kicinski
2019-08-06 2:00 ` Jiangfeng Xiao
2019-08-06 3:05 ` Jakub Kicinski
2019-08-03 12:31 ` [PATCH v1 2/3] net: hisilicon: fix hip04-xmit never return TX_BUSY Jiangfeng Xiao
2019-08-03 12:31 ` Jiangfeng Xiao [this message]
2019-08-06 21:15 ` [PATCH v1 0/3] net: hisilicon: Fix a few problems with hip04_eth David Miller
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1564835501-90257-4-git-send-email-xiaojiangfeng@huawei.com \
--to=xiaojiangfeng@huawei.com \
--cc=davem@davemloft.net \
--cc=leeyou.li@huawei.com \
--cc=linux-kernel@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=nixiaoming@huawei.com \
--cc=salil.mehta@huawei.com \
--cc=xiaowei774@huawei.com \
--cc=yisen.zhuang@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).