From: Ivan Vecera <ivecera@redhat.com>
Date: Fri, 14 Dec 2007 13:27:18 +0100
Subject: [misc] ioat dma: support unisys
Message-id: 476276A6.6090005@redhat.com
O-Subject: [RHEL5.2 PATCH] IOAT DMA Driver update for RHEL 5.2
Bugzilla: 248767

BZ248767 (https://bugzilla.redhat.com/show_bug.cgi?id=248767)

Description:
Update request from Unisys for support of its IOAT DMA engine that is
compatible with Intel's one. This update only adds new PCI ID into
Intel's driver.

Test results:
No tested, Unisys has not the mentioned hardware for testing yet.

Upstream status:
The attached patch is covered by following commit from upstream:
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=3039f0735a280b54c7364fbfe6a9287f7f0b510a

Please review the patch below.

Ivan

=====

diff --git a/drivers/dma/ioatdma.c b/drivers/dma/ioatdma.c
index dbd4d6c..dc29723 100644
--- a/drivers/dma/ioatdma.c
+++ b/drivers/dma/ioatdma.c
@@ -553,6 +553,8 @@ static enum dma_status ioat_dma_is_complete(struct dma_chan *chan,
 
 static struct pci_device_id ioat_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IOAT) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_UNISYS,
+		     PCI_DEVICE_ID_UNISYS_DMA_DIRECTOR) },
 	{ 0, }
 };
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index eba2b20..90e0a0d 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -471,6 +471,9 @@
 #define PCI_DEVICE_ID_IBM_ICOM_FOUR_PORT_MODEL	0x252
 #define PCI_DEVICE_ID_IBM_ICOM_V2_ONE_PORT_RVX_ONE_PORT_MDM_PCIE	0x0361
 
+#define PCI_VENDOR_ID_UNISYS		0x1018
+#define PCI_DEVICE_ID_UNISYS_DMA_DIRECTOR 0x001C
+
 #define PCI_VENDOR_ID_COMPEX2		0x101a /* pci.ids says "AT&T GIS (NCR)" */
 #define PCI_DEVICE_ID_COMPEX2_100VG	0x0005