From: Thomas Bogendoerfer <tbogendoerfer@suse.de>
To: Ralf Baechle <ralf@linux-mips.org>,
"David S. Miller" <davem@davemloft.net>,
linux-mips@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Christoph Hellwig <hch@lst.de>
Subject: [net v3 3/5] net: sgi: ioc3-eth: simplify setting the DMA mask
Date: Mon, 4 Nov 2019 11:45:13 +0100 [thread overview]
Message-ID: <20191104104515.7066-3-tbogendoerfer@suse.de> (raw)
In-Reply-To: <20191104104515.7066-1-tbogendoerfer@suse.de>
From: Christoph Hellwig <hch@lst.de>
There is no need to fall back to a lower mask these days, the DMA mask
just communicates the hardware supported features.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/sgi/ioc3-eth.c | 27 +++++++--------------------
1 file changed, 7 insertions(+), 20 deletions(-)
diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c
index 8a684d882e63..dc2e22652b55 100644
--- a/drivers/net/ethernet/sgi/ioc3-eth.c
+++ b/drivers/net/ethernet/sgi/ioc3-eth.c
@@ -1173,26 +1173,14 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
struct ioc3 *ioc3;
unsigned long ioc3_base, ioc3_size;
u32 vendor, model, rev;
- int err, pci_using_dac;
+ int err;
/* Configure DMA attributes. */
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
- if (!err) {
- pci_using_dac = 1;
- err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
- if (err < 0) {
- pr_err("%s: Unable to obtain 64 bit DMA for consistent allocations\n",
- pci_name(pdev));
- goto out;
- }
- } else {
- err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
- if (err) {
- pr_err("%s: No usable DMA configuration, aborting.\n",
- pci_name(pdev));
- goto out;
- }
- pci_using_dac = 0;
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ if (err) {
+ pr_err("%s: No usable DMA configuration, aborting.\n",
+ pci_name(pdev));
+ goto out;
}
if (pci_enable_device(pdev))
@@ -1204,8 +1192,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto out_disable;
}
- if (pci_using_dac)
- dev->features |= NETIF_F_HIGHDMA;
+ dev->features |= NETIF_F_HIGHDMA;
err = pci_request_regions(pdev, "ioc3");
if (err)
--
2.16.4
next prev parent reply other threads:[~2019-11-04 10:45 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-04 10:45 [net v3 1/5] net: sgi: ioc3-eth: don't abuse dma_direct_* calls Thomas Bogendoerfer
2019-11-04 10:45 ` [net v3 2/5] net: sgi: ioc3-eth: fix usage of GFP_* flags Thomas Bogendoerfer
2019-11-04 10:45 ` Thomas Bogendoerfer [this message]
2019-11-04 10:45 ` [net v3 4/5] net: sgi: ioc3-eth: fix setting NETIF_F_HIGHDMA Thomas Bogendoerfer
2019-11-04 10:45 ` [net v3 5/5] net: sgi: ioc3-eth: ensure tx ring is 16k aligned Thomas Bogendoerfer
2019-11-04 19:30 ` [net v3 1/5] net: sgi: ioc3-eth: don't abuse dma_direct_* calls David Miller
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