The patch titled
iommu sg merging: PCI: add dma segment boundary support
has been removed from the -mm tree. Its filename was
pci-add-dma-segment-boundary-support.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: iommu sg merging: PCI: add dma segment boundary support
From: FUJITA Tomonori <[EMAIL PROTECTED]>
This adds PCI's accessor for segment_boundary_mask in device_dma_parameters.
The default segment_boundary is set to 0xffffffff, same to the block layer's
default value (and the scsi mid layer uses the same value).
Signed-off-by: FUJITA Tomonori <[EMAIL PROTECTED]>
Cc: James Bottomley <[EMAIL PROTECTED]>
Cc: Jens Axboe <[EMAIL PROTECTED]>
Cc: Greg KH <[EMAIL PROTECTED]>
Cc: Jeff Garzik <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---
drivers/pci/pci.c | 8 ++++++++
drivers/pci/probe.c | 1 +
include/linux/pci.h | 7 +++++++
3 files changed, 16 insertions(+)
diff -puN drivers/pci/pci.c~pci-add-dma-segment-boundary-support
drivers/pci/pci.c
--- a/drivers/pci/pci.c~pci-add-dma-segment-boundary-support
+++ a/drivers/pci/pci.c
@@ -1459,6 +1459,14 @@ int pci_set_dma_max_seg_size(struct pci_
EXPORT_SYMBOL(pci_set_dma_max_seg_size);
#endif
+#ifndef HAVE_ARCH_PCI_SET_DMA_SEGMENT_BOUNDARY
+int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask)
+{
+ return dma_set_seg_boundary(&dev->dev, mask);
+}
+EXPORT_SYMBOL(pci_set_dma_seg_boundary);
+#endif
+
/**
* pcix_get_max_mmrbc - get PCI-X maximum designed memory read byte count
* @dev: PCI device to query
diff -puN drivers/pci/probe.c~pci-add-dma-segment-boundary-support
drivers/pci/probe.c
--- a/drivers/pci/probe.c~pci-add-dma-segment-boundary-support
+++ a/drivers/pci/probe.c
@@ -937,6 +937,7 @@ void pci_device_add(struct pci_dev *dev,
dev->dev.coherent_dma_mask = 0xffffffffull;
pci_set_dma_max_seg_size(dev, 65536);
+ pci_set_dma_seg_boundary(dev, 0xffffffff);
/* Fix up broken headers */
pci_fixup_device(pci_fixup_header, dev);
diff -puN include/linux/pci.h~pci-add-dma-segment-boundary-support
include/linux/pci.h
--- a/include/linux/pci.h~pci-add-dma-segment-boundary-support
+++ a/include/linux/pci.h
@@ -583,6 +583,7 @@ void pci_msi_off(struct pci_dev *dev);
int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size);
+int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask);
int pcix_get_max_mmrbc(struct pci_dev *dev);
int pcix_get_mmrbc(struct pci_dev *dev);
int pcix_set_mmrbc(struct pci_dev *dev, int mmrbc);
@@ -831,6 +832,12 @@ static inline int pci_set_dma_max_seg_si
return -EIO;
}
+static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
+ unsigned long mask)
+{
+ return -EIO;
+}
+
static inline int pci_assign_resource(struct pci_dev *dev, int i)
{
return -EBUSY;
_
Patches currently in -mm which might be from [EMAIL PROTECTED] are
origin.patch
-
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