Signed-off-by: Sean O. Stalley <sean.stalley@xxxxxxxxx> I tested it out with the QEMU EA Patches here: [https://lists.nongnu.org/archive/html/qemu-devel/2015-07/msg00348.html] Also, I found 1 trivial typo in the commit message of PATCH 1/4: "Signed-off-by: Signed-off-by: David Daney <david.daney@xxxxxxxxxx>" -Sean On Wed, Oct 07, 2015 at 06:44:52AM -0700, Stalley, Sean wrote: > [PATCH 3/4 & 4/4] Acked-by: Sean O. Stalley <sean.stalley@xxxxxxxxx> > > I won't be able to test it out until next week, but I like how it looks :) > > Thanks Again, > Sean > > > -----Original Message----- > > From: David Daney [mailto:ddaney.cavm@xxxxxxxxx] > > Sent: Tuesday, October 06, 2015 4:51 PM > > To: linux-kernel@xxxxxxxxxxxxxxx; linux-pci@xxxxxxxxxxxxxxx; Bjorn Helgaas; > > Michael S. Tsirkin; Rafał Miłecki; linux-api@xxxxxxxxxxxxxxx; Stalley, Sean; > > yinghai@xxxxxxxxxx; rajatxjain@xxxxxxxxx; gong.chen@xxxxxxxxxxxxxxx > > Cc: David Daney > > Subject: [PATCH v5 0/4] PCI: Add support for PCI Enhanced Allocation > > "BARs" > > > > From: David Daney <david.daney@xxxxxxxxxx> > > > > The original patches are from Sean O. Stalley. I made a few tweaks, but feel > > that it is substancially Sean's work, so I am keeping the patch set version > > numbering scheme going. > > > > Tested on Cavium ThunderX system with 4 Root Complexes containing 50 > > devices/bridges provisioned with EA. > > > > Here is Sean's description of the patches: > > > > PCI Enhanced Allocation is a new method of allocating MMIO & IO > > resources for PCI devices & bridges. It can be used instead of the traditional > > PCI method of using BARs. > > > > EA entries are hardware-initialized to a fixed address. > > Unlike BARs, regions described by EA are cannot be moved. > > Because of this, only devices which are permanently connected to the PCI > > bus can use EA. A removable PCI card must not use EA. > > > > This patchset adds support for using EA entries instead of BARs on Root > > Complex Integrated Endpoints. > > > > The Enhanced Allocation ECN is publicly available here: > > https://www.pcisig.com/specifications/conventional/ECN_Enhanced_Alloca > > tion_23_Oct_2014_Final.pdf > > > > > > Changes from V1: > > - Use generic PCI resource claim functions (instead of EA-specific > > functions) > > - Only add support for RCiEPs (instead of all devices). > > - Removed some debugging messages leftover from early testing. > > > > Changes from V2 (By David Daney): > > - Add ea_cap to struct pci_device, to aid in finding the EA capability. > > - Factored EA entity decoding into a separate function. > > - Add functions to find EA entities by BEI or Property. > > - Add handling of EA provisioned bridges. > > - Add handling of EA SRIOV BARs. > > - Try to assign proper resource parent so that SRIOV device creation > > can occur. > > > > Changes from V3 (By David Daney): > > - Discarded V3 changes and started over fresh based on Sean's V2. > > - Add more support/checking for Entry Properties. > > - Allow EA behind bridges. > > - Rewrite some error messages. > > - Add patch 3/5 to prevent resizing, and better handle > > assigning, of fixed EA resources. > > - Add patch 4/5 to handle EA provisioned SRIOV devices. > > - Add patch 5/5 to handle EA provisioned bridges. > > > > Changes from V4 (By David Daney): > > - Drop patch 5/5 to handle EA provisioned bridges. > > - Drop cases for bridge resources in 2/5. > > - Drop unnecessary fallback resource parent handling in 3/5 > > - Small code formatting improvements. > > > > David Daney (2): > > PCI: Handle IORESOURCE_PCI_FIXED when sizing and assigning resources. > > PCI: Handle Enhanced Allocation (EA) capability for SRIOV devices. > > > > Sean O. Stalley (2): > > PCI: Add Enhanced Allocation register entries > > PCI: Add support for Enhanced Allocation devices > > > > drivers/pci/iov.c | 11 ++- > > drivers/pci/pci.c | 189 > > ++++++++++++++++++++++++++++++++++++++++++ > > drivers/pci/pci.h | 1 + > > drivers/pci/probe.c | 3 + > > drivers/pci/setup-bus.c | 50 ++++++++++- > > include/uapi/linux/pci_regs.h | 44 +++++++++- > > 6 files changed, 292 insertions(+), 6 deletions(-) > > > > -- > > 1.9.1 > -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
