From: Jakub Kicinski <jakub.kicinski@netronome.com>
To: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Cc: Jonathan Corbet <corbet@lwn.net>,
Ralf Baechle <ralf@linux-mips.org>,
Paul Burton <paul.burton@mips.com>,
James Hogan <jhogan@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Lee Jones <lee.jones@linaro.org>,
"David S. Miller" <davem@davemloft.net>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Alessandro Zummo <a.zummo@towertech.it>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jslaby@suse.com>, Evgeniy Polyakov <zbr@ioremap.net>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mips@vger.kernel.org, linux-input@vger.kernel.org,
netdev@vger.kernel.org, linux-rtc@vger.kernel.org,
linux-serial@vger.kernel.org
Subject: Re: [PATCH v5 12/17] net: sgi: ioc3-eth: use dma-direct for dma allocations
Date: Mon, 19 Aug 2019 17:07:35 -0700 [thread overview]
Message-ID: <20190819170735.13884ec9@cakuba.netronome.com> (raw)
In-Reply-To: <20190819163144.3478-13-tbogendoerfer@suse.de>
On Mon, 19 Aug 2019 18:31:35 +0200, Thomas Bogendoerfer wrote:
> @@ -1386,18 +1427,24 @@ static netdev_tx_t ioc3_start_xmit(struct sk_buff *skb, struct net_device *dev)
> unsigned long b2 = (data | 0x3fffUL) + 1UL;
> unsigned long s1 = b2 - data;
> unsigned long s2 = data + len - b2;
> + dma_addr_t d;
>
> desc->cmd = cpu_to_be32(len | ETXD_INTWHENDONE |
> ETXD_B1V | ETXD_B2V | w0);
> desc->bufcnt = cpu_to_be32((s1 << ETXD_B1CNT_SHIFT) |
> (s2 << ETXD_B2CNT_SHIFT));
> - desc->p1 = cpu_to_be64(ioc3_map(skb->data, 1));
> - desc->p2 = cpu_to_be64(ioc3_map((void *)b2, 1));
> + d = dma_map_single(ip->dma_dev, skb->data, s1, DMA_TO_DEVICE);
You'll need to check the DMA address with dma_mapping_error(dev, addr),
otherwise static checkers will get upset.
> + desc->p1 = cpu_to_be64(ioc3_map(d, PCI64_ATTR_PREF));
> + d = dma_map_single(ip->dma_dev, (void *)b2, s1, DMA_TO_DEVICE);
> + desc->p2 = cpu_to_be64(ioc3_map(d, PCI64_ATTR_PREF));
next prev parent reply other threads:[~2019-08-20 0:07 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-19 16:31 [PATCH v5 00/17] Use MFD framework for SGI IOC3 drivers Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 01/17] w1: add 1-wire master driver for IP block found in SGI ASICs Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 02/17] w1: add DS2501, DS2502, DS2505 EPROM device driver Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 03/17] nvmem: core: add nvmem_device_find Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 04/17] MIPS: PCI: refactor ioc3 special handling Thomas Bogendoerfer
2019-09-03 9:10 ` Paul Burton
2019-08-19 16:31 ` [PATCH v5 05/17] MIPS: PCI: use information from 1-wire PROM for IOC3 detection Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 06/17] MIPS: SGI-IP27: remove ioc3 ethernet init Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 07/17] MIPS: SGI-IP27: restructure ioc3 register access Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 08/17] net: sgi: ioc3-eth: remove checkpatch errors/warning Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 09/17] net: sgi: ioc3-eth: use defines for constants dealing with desc rings Thomas Bogendoerfer
2019-08-19 23:53 ` Jakub Kicinski
2019-08-19 16:31 ` [PATCH v5 10/17] net: sgi: ioc3-eth: rework skb rx handling Thomas Bogendoerfer
2019-08-19 23:55 ` Jakub Kicinski
2019-08-21 14:28 ` Thomas Bogendoerfer
2019-08-21 20:37 ` Jakub Kicinski
2019-08-19 16:31 ` [PATCH v5 11/17] net: sgi: ioc3-eth: no need to stop queue set_multicast_list Thomas Bogendoerfer
2019-08-20 0:04 ` Jakub Kicinski
2019-08-21 12:40 ` Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 12/17] net: sgi: ioc3-eth: use dma-direct for dma allocations Thomas Bogendoerfer
2019-08-20 0:07 ` Jakub Kicinski [this message]
2019-08-19 16:31 ` [PATCH v5 13/17] net: sgi: ioc3-eth: use csum_fold Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 14/17] net: sgi: ioc3-eth: Fix IPG settings Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 15/17] mfd: ioc3: Add driver for SGI IOC3 chip Thomas Bogendoerfer
2019-08-20 6:23 ` Alexandre Belloni
2019-08-20 8:17 ` Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 16/17] MIPS: SGI-IP27: fix readb/writeb addressing Thomas Bogendoerfer
2019-08-19 16:31 ` [PATCH v5 17/17] Input: add IOC3 serio driver Thomas Bogendoerfer
2019-08-19 23:51 ` [PATCH v5 00/17] Use MFD framework for SGI IOC3 drivers Jakub Kicinski
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