linux/Documentation/PCI, branch v3.19

doc: replace "practise" with "practice" in Documentation

2014-06-19T13:28:56Z

To keep the Documentation consistent either "practise" or "practice" should be used. Since there are 3 lines with "practise" ~/linux/Documentation$ grep -r practise * | wc -l 3 and 108 lines with "practice" ~/linux/Documentation$ grep -r practice * | wc -l 108 this patch converts "practise" to "practice". Signed-off-by: Jeremiah Mahler Signed-off-by: Jiri Kosina

Merge branch 'pci/dead-code' into next

2014-02-20T21:32:34Z

* pci/dead-code: PCI: Remove unused SR-IOV VF Migration support iommu/amd: Add include of mei: Add include of misc: mic: Add include of

PCI: Remove unused SR-IOV VF Migration support

2014-02-19T18:28:44Z

This reverts commit 74bb1bcc7dbb ("PCI: handle SR-IOV Virtual Function Migration"), removing this exported interface: pci_sriov_migration() Since pci_sriov_migration() is unused, it is impossible to schedule sriov_migration_task() or use any of the other migration infrastructure. This is based on Stephen Hemminger's patch (see link below), but goes a bit further. Link: http://lkml.kernel.org/r/20131227132710.7190647c@nehalam.linuxnetplumber.net Signed-off-by: Bjorn Helgaas CC: Stephen Hemminger

PCI/MSI: Add pci_enable_msi_exact() and pci_enable_msix_exact()

2014-02-13T17:45:05Z

The new functions are special cases for pci_enable_msi_range() and pci_enable_msix_range() when a particular number of MSI or MSI-X is needed. By contrast with pci_enable_msi_range() and pci_enable_msix_range() functions, pci_enable_msi_exact() and pci_enable_msix_exact() return zero in case of success, which indicates MSI or MSI-X interrupts have been successfully allocated. Signed-off-by: Alexander Gordeev Signed-off-by: Bjorn Helgaas

PCI/MSI: Fix cut-and-paste errors in documentation

2014-02-13T17:45:01Z

Function pci_enable_msi_range() is used in examples where pci_enable_msix_range() should have been used instead. Reported-by: Bjorn Helgaas Signed-off-by: Alexander Gordeev Signed-off-by: Bjorn Helgaas

PCI/MSI: Add pci_enable_msi() documentation back

2014-02-04T06:08:49Z

We deprecated pci_enable_msi() in 302a2523c277 ("PCI/MSI: Add pci_enable_msi_range() and pci_enable_msix_range()"). But we changed our minds after noticing that: - pci_enable_msi() doesn't have confusing return values like pci_enable_msi_block() and pci_enable_msix() did, and - pci_enable_msi() has a hundred or so callers that we don't want to change. This adds back the pci_enable_msi() documentation. [bhelgaas: changelog] Signed-off-by: Alexander Gordeev Signed-off-by: Bjorn Helgaas

Merge branch 'pci/msi' into next

2014-01-08T00:34:39Z

* pci/msi: PCI/MSI: Add pci_enable_msi_range() and pci_enable_msix_range() PCI/MSI: Add pci_msix_vec_count() PCI/MSI: Remove pci_enable_msi_block_auto() PCI/MSI: Add pci_msi_vec_count()

Merge branch 'pci/misc' into next

2014-01-08T00:34:33Z

* pci/misc: PCI: Update documentation 00-INDEX file PCI: Convert ioapic to be builtin only, not modular

PCI: Update documentation 00-INDEX file

2014-01-07T23:37:15Z

The PCI-DMA-mapping.txt moved to general docs and became DMA-API-HOWTO.txt in 5e07c2c7301b ("Documentation: rename PCI/PCI-DMA-mapping.txt to DMA-API-HOWTO.txt"). Add new file about PCI Express I/O Virtualization. Signed-off-by: Erik Ekman Signed-off-by: Bjorn Helgaas

PCI/MSI: Add pci_enable_msi_range() and pci_enable_msix_range()

2014-01-04T00:17:55Z

This adds pci_enable_msi_range(), which supersedes the pci_enable_msi() and pci_enable_msi_block() MSI interfaces. It also adds pci_enable_msix_range(), which supersedes the pci_enable_msix() MSI-X interface. The old interfaces have three categories of return values: negative: failure; caller should not retry positive: failure; value indicates number of interrupts that *could* have been allocated, and caller may retry with a smaller request zero: success; at least as many interrupts allocated as requested It is error-prone to handle these three cases correctly in drivers. The new functions return either a negative error code or a number of successfully allocated MSI/MSI-X interrupts, which is expected to lead to clearer device driver code. pci_enable_msi(), pci_enable_msi_block() and pci_enable_msix() still exist unchanged, but are deprecated and may be removed after callers are updated. [bhelgaas: tweak changelog] Suggested-by: Ben Hutchings Signed-off-by: Alexander Gordeev Signed-off-by: Bjorn Helgaas Reviewed-by: Tejun Heo