From: Yinghai Lu <yinghai@kernel.org>
To: Jesse Barnes <jbarnes@virtuousgeek.org>,
Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
Yinghai Lu <yinghai@kernel.org>
Subject: [PATCH] pci: print out DMA mask info
Date: Wed, 8 Oct 2008 16:02:23 -0700 [thread overview]
Message-ID: <1223506943-6543-1-git-send-email-yinghai@kernel.org> (raw)
so can find out what is DMA mask is used for pci devices in addition to
default setting.
got:
ehci_hcd 0000:00:02.1: using 31bit consistent DMA mask
e1000 0000:0b:01.0: using 64bit DMA mask
e1000 0000:0b:01.0: using 64bit consistent DMA mask
e1000e 0000:04:00.0: using 64bit DMA mask
e1000e 0000:04:00.0: using 64bit consistent DMA mask
ixgb 0000:0c:01.0: using 64bit DMA mask
ixgb 0000:0c:01.0: using 64bit consistent DMA mask
aacraid 0000:86:00.0: using 32bit DMA mask
aacraid 0000:86:00.0: using 32bit consistent DMA mask
aacraid 0000:86:00.0: using 64bit DMA mask
aacraid 0000:86:00.0: using 64bit consistent DMA mask
qla2xxx 0000:0c:02.0: using 64bit consistent DMA mask
qla2xxx 0000:0c:02.1: using 64bit consistent DMA mask
lpfc 0000:06:00.0: using 64bit DMA mask
lpfc 0000:06:00.1: using 64bit DMA mask
pata_amd 0000:00:06.0: using 32bit DMA mask
pata_amd 0000:00:06.0: using 32bit consistent DMA mask
mptsas 0000:0c:04.0: using 64bit DMA mask
mptsas 0000:0c:04.0: using 64bit consistent DMA mask
forcedeth 0000:00:08.0: using 39bit DMA mask
forcedeth 0000:00:08.0: using 39bit consistent DMA mask
niu 0000:02:00.0: using 44bit DMA mask
niu 0000:02:00.0: using 44bit consistent DMA mask
sata_nv 0000:00:05.0: using 32bit DMA mask
sata_nv 0000:00:05.0: using 32bit consistent DMA mask
ib_mthca 0000:03:00.0: using 64bit DMA mask
ib_mthca 0000:03:00.0: using 64bit consistent DMA mask
wondering why: qlogic qla2xxx only set consistent to 64bit,
emulex lpfc not set consistent to 64bit
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
---
drivers/pci/pci.c | 4 ++++
1 file changed, 4 insertions(+)
Index: linux-2.6/drivers/pci/pci.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci.c
+++ linux-2.6/drivers/pci/pci.c
@@ -1660,6 +1660,8 @@ pci_set_dma_mask(struct pci_dev *dev, u6
return -EIO;
dev->dma_mask = mask;
+ dev_printk(KERN_DEBUG, &dev->dev, "using %dbit DMA mask\n",
+ fls64(mask));
return 0;
}
@@ -1671,6 +1673,8 @@ pci_set_consistent_dma_mask(struct pci_d
return -EIO;
dev->dev.coherent_dma_mask = mask;
+ dev_printk(KERN_DEBUG, &dev->dev, "using %dbit consistent DMA mask\n",
+ fls64(mask));
return 0;
}
next reply other threads:[~2008-10-08 23:03 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-08 23:02 Yinghai Lu [this message]
2008-10-09 21:18 ` [PATCH] pci: print out DMA mask info Grant Grundler
2008-10-09 21:27 ` Yinghai Lu
2008-10-09 21:35 ` Matthew Wilcox
2008-10-09 21:51 ` Yinghai Lu
2008-10-09 22:55 ` Grant Grundler
2008-10-09 23:05 ` Yinghai Lu
2008-10-10 2:40 ` FUJITA Tomonori
2008-10-10 4:56 ` Yinghai Lu
2008-10-10 6:08 ` FUJITA Tomonori
2008-10-10 6:32 ` Yinghai Lu
2008-10-10 7:32 ` FUJITA Tomonori
2008-10-12 7:16 ` Grant Grundler
2008-10-10 22:45 ` Grant Grundler
2008-10-14 6:50 ` FUJITA Tomonori
2008-10-12 7:11 ` Grant Grundler
2008-10-23 1:45 ` [PATCH] pci: show dma_mask bits in /sys Yinghai Lu
2008-10-23 3:28 ` Matthew Wilcox
2008-10-23 4:19 ` Yinghai Lu
2008-10-23 6:44 ` Grant Grundler
2008-10-23 8:38 ` Rolf Eike Beer
2008-10-23 15:39 ` Greg KH
2008-10-23 18:37 ` H. Peter Anvin
2008-10-23 19:36 ` Grant Grundler
2008-10-23 19:49 ` Greg KH
2008-10-24 10:50 ` Andi Kleen
2008-11-01 17:10 ` Grant Grundler
2008-10-23 6:48 ` Grant Grundler
2008-10-23 6:51 ` Yinghai Lu
2008-10-23 19:28 ` Grant Grundler
2008-10-10 2:40 ` [PATCH] pci: print out DMA mask info FUJITA Tomonori
2008-10-10 2:59 ` FUJITA Tomonori
2008-10-10 2:40 ` FUJITA Tomonori
2008-10-10 15:48 ` Jesse Barnes
2008-10-10 16:19 ` Yinghai Lu
2008-10-10 16:28 ` Jesse Barnes
2008-10-10 16:33 ` Matthew Wilcox
2008-10-10 16:46 ` Yinghai Lu
2008-10-10 17:12 ` Matthew Wilcox
2008-10-10 17:18 ` Roland Dreier
2008-10-12 7:38 ` Grant Grundler
2008-10-12 7:20 ` Grant Grundler
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