Rebase ipxe to latest git master.
Pick up four virtio-net fixes.

complete shortlog of ipxe changes
---------------------------------

Adamczyk, Konrad (1):
      [thunderx] Use ThunderxConfigProtocol to obtain board configuration

Bartosz Szczepanek (1):
      [thunderx] Fix hardware deinitialization

Christian Nilsson (1):
      [intel] Add INTEL_NO_PHY_RST for I219-LM (2)

David Decotigny (2):
      [build] Return const char * from uuid_ntoa()
      [af_packet] Add new AF_PACKET driver for Linux

Jason Wang (1):
      [virtio] Support VIRTIO_NET_F_IOMMU_PLATFORM

Jerone Young (1):
      [intel] Add support for I219-V in 7th Gen Intel NUC

Konrad Adamczyk (1):
      [thunderx] Don't disable NIC when exiting from iPXE

Ladi Prosek (3):
      [virtio] Cap queue size to MAX_QUEUE_NUM
      [virtio] Simplify virtqueue shutdown
      [virtio] Remove queue size limit in legacy virtio

Martin Habets (1):
      [sfc] Add driver for Solarflare SFC8XXX adapters

Michael Brown (159):
      [interface] Provide intf_reinit() to reinitialise nullified interfaces
      [iscsi] Avoid potential infinite loops during shutdown
      [efi] Add basic EFI SAN booting capability
      [undi] Allocate base memory before calling UNDI loader entry point
      [romprefix] Avoid using PMM-allocated memory in UNDI loader entry point
      [undi] Clean up driver and device name information
      [prefix] Remove impossible progress message
      [prefix] Include diagnostic information within progress messages
      [undi] Try matching UNDI ROMs in BIOS enumeration order
      [efi] Work around temporal anomaly encountered during ExitBootServices()
      [ipv4] Accept unicast packets for the local network broadcast address
      [build] Add %.vhd target for building VM bootable disk images
      [virtio] Use separate RX and TX empty header buffers
      [cloud] Add ability to retrieve Google Compute Engine metadata
      [virtio] Use host-specified MTU when available
      [netdevice] Allow MTU to be changed at runtime
      [cloud] Show CPU vendor and model in example cloud boot scripts
      [hyperv] Ignore unsolicited VMBus messages
      [pic8259] Fix definitions for "read IRR" and "read ISR" commands
      [efi] Fix building elf2efi.c when -fpic is enabled by default
      [interface] Avoid unnecessary reference counting in intf_unplug()
      [interface] Remove misleading comment
      [interface] Unplug interface before calling intf_close() in intf_shutdown()
      [netdevice] Limit MTU by hardware maximum frame length
      [cpuid] Provide cpuid_supported() to test for supported functions
      [time] Allow timer to be selected at runtime
      [hyperv] Provide timer based on the 10MHz time reference count MSR
      [int13] Avoid potential division by zero
      [int13] Test correct return status from INT 13 calls
      [settings] Add "unixtime" builtin setting to expose the current time
      [time] Report attempts to use timers before initialisation
      [interface] Provide the ability to shut down multiple interfaces
      [http] Cleanly shut down potentially looped interfaces
      [efi] Add missing SANBOOT_PROTO_HTTP to EFI default configuration
      [block] Remove spurious comments
      [block] Centralise SAN device abstraction
      [block] Centralise "san-drive" setting
      [int13] Refactor to use centralised SAN device abstraction
      [efi] Refactor to use centralised SAN device abstraction
      [block] Retry any SAN device operation
      [iscsi] Use intfs_shutdown() when shutting down multiple interfaces
      [scsi] Use intfs_shutdown() when shutting down multiple interfaces
      [block] Use intfs_shutdown() when shutting down multiple interfaces
      [scsi] Avoid duplicate calls to scsicmd_close()
      [build] Provide common ARRAY_SIZE() definition
      [efi] Update to current EDK2 headers
      [efi] Add EFI_ACPI_TABLE_PROTOCOL header and GUID definition
      [efi] Provide ACPI table description for SAN devices
      [efi] Skip cable detection at initialisation where possible
      [undi] Move PXE API caller back into UNDI driver
      [dhcp] Allow vendor class to be changed in DHCP requests
      [hermon] Avoid potential integer overflow when calculating memory mappings
      [arbel] Avoid potential integer overflow when calculating memory mappings
      [xfer] Ensure va_end() is called on failure path
      [nfs] Fix double free bug on error path
      [linda] Use correct length for memset()
      [qib7322] Use correct length for memset()
      [sis900] Remove extraneous memset() with incorrect length
      [802.11] Remove redundant NULL pointer check after dereference
      [crypto] Free correct pointer on the error path
      [librm] Fail gracefully if asked to ioremap() a zero length
      [usb] Use correct length for memcpy()
      [mucurses] Attempt to fix test for empty string
      [mucurses] Attempt to fix keypress processing logic
      [mucurses] Attempt to fix resource leaks
      [hyperv] Fix resource leaks on error path
      [slam] Fix resource leak on error path
      [slam] Avoid NULL pointer dereference in slam_pull_value()
      [eoib] Avoid passing a NULL I/O buffer to netdev_tx_complete_err()
      [http] Add missing check for memory allocation failure
      [mucurses] Attempt to fix use of uninitialised buffer with strcat()
      [xhci] Avoid accessing beyond end of endpoint context array
      [build] Avoid confusing sparse in single-argument DBG() macros
      [infiniband] Return status code from ib_create_cq() and ib_create_qp()
      [infiniband] Return status code from ib_create_mi()
      [block] Quell spurious Coverity size mismatch warning
      [ath] Add missing break statements
      [pixbuf] Avoid potential division by zero
      [usb] Use correct length for memcpy()
      [xen] Use standard calling pattern for asprintf()
      [tcp] Use correct length for memset()
      [video_subr] Use memmove() for overlapping memory copy
      [arbel] Assert that mapping length is non-zero
      [hermon] Assert that mapping length is non-zero
      [tlan] Guard against failure to identify chip
      [w89c840] Avoid potential array overrun
      [sis190] Avoid NULL pointer dereference
      [mucurses] Ensure SLK labels are always terminated
      [coverity] Add Coverity user model
      [malloc] Track maximum heap usage
      [travis] Add minimal .travis.yml file
      [travis] Build and run the unit test suite
      [travis] Integrate with Coverity Scan
      [rtl818x] Fix resource leak on error path
      [pcnet32] Eliminate redundant register read
      [iobuf] Increase minimum I/O buffer size to 128 bytes
      [vxge] Fix use of stale I/O buffer on error path
      [scsi] Avoid duplicate call to scsicmd_close() on TEST UNIT READY failure
      [block] Add dummy SAN device
      [block] Add basic multipath support
      [int13] Improve geometry guessing for unaligned partitions
      [int13con] Avoid overwriting random portions of SAN boot disks
      [time] Add sleep_fixed() function to sleep without checking for Ctrl-C
      [block] Allow SAN retry count to be reconfigured
      [block] Add a small delay between attempts to reopen SAN targets
      [block] Retry reopening indefinitely for multipath devices
      [block] Gracefully close SAN device if registration fails
      [linux] Use dummy SAN device
      [block] Ignore redundant xfer_window_changed() messages
      [block] Describe all SAN devices via ACPI tables
      [iscsi] Do not install iBFT when no iSCSI targets exist
      [http] Notify data transfer interface when underlying connection is ready
      [mucurses] Fix erroneous __nonnull attribute
      [build] Avoid implicit-fallthrough warnings on GCC 7
      [linux] Fix building with kernel 4.11 headers
      [scsi] Retry TEST UNIT READY command
      [libc] Add stdbool.h standard header
      [efi] Fix typo in efi_acpi_table_protocol_guid
      [efi] Add efi_sprintf() and efi_vsprintf()
      [block] Allow use of a non-default EFI SAN boot filename
      [intel] Show original CTRL and STATUS values in debugging output
      [intel] Do not enable ASDE on i350 backplane NIC
      [block] Provide sandev_read() and sandev_write() as global symbols
      [block] Provide abstraction to allow system to be quiesced
      [hyperv] Do not fail if guest OS ID MSR is already set
      [hyperv] Remove redundant return status code from mapping functions
      [hyperv] Cope with Windows Server 2016 enlightenments
      [efi] Standardise PCI debug messages
      [iscsi] Always send FirstBurstLength parameter
      [iscsi] Fix iBFT when no explicit initiator name setting exists
      [xen] Provide 18 4kB receive buffers to work around xen-netback bug
      [efi] Prevent EFI code from being linked in to non-EFI builds
      [tls] Keep cipherstream window open until TLS negotiation is complete
      [settings] Extend numerical setting tags to 64 bits
      [acpi] Make acpi_find_rsdt() a per-platform method
      [efi] Provide access to ACPI tables
      [acpi] Expose ACPI tables via settings mechanism
      [syslog] Handle backspace characters
      [hdprefix] Avoid attempts to read beyond the end of the disk
      [usb] Allow for USB network devices with no interrupt endpoint
      [build] Use -no-pie on newer versions of gcc
      [ecm] Display invalid MAC address strings in debug messages
      [cpuid] Allow input %ecx value to be specified
      [crypto] Expose RSA_CTX_SIZE constant
      [crypto] Expose asn1_grow()
      [crypto] Provide asn1_built() to construct a cursor from a builder
      [crypto] Expose pem_asn1() for use with non-image data
      [exanic] Add driver for Exablaze ExaNIC cards
      [usb] Use non-zero language ID to retrieve strings
      [mucurses] Avoid potential division by zero
      [tls] Support RFC5746 secure renegotiation
      [smscusb] Abstract out common SMSC USB device functionality
      [smsc95xx] Use common SMSC USB device functionality
      [smsc75xx] Use common SMSC USB device functionality
      [smscusb] Add ability to read MAC address from OTP
      [smscusb] Move non-inline register access functions to smscusb.c
      [smscusb] Allow for alternative PHY register layouts
      [smsc75xx] Expose functionality shared with LAN78xx devices
      [lan78xx] Add driver for Microchip LAN78xx USB Ethernet NICs

Mika Tiainen (1):
      [intel] Add INTEL_NO_PHY_RST for I219-V

Mike McCormack (1):
      [sky2] Use 32-bit read to read Y2_VAUX_AVAIL

Raed Salem (2):
      [golan] Update Connect-IB, ConnectX-4 and ConnectX-4 Lx (Infiniband) support
      [golan] Bug fixes and improved paging allocation method

Vishvananda Ishaya (1):
      [intel] Reset all virtual function settings

Vishvananda Ishaya Abrams (1):
      [iscsi] Don't close when receiving NOP-In
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>