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* Merge xz 5.2.0.rpaulo2015-02-091-0/+1
| | | | | | | | | | | | | This brings support for multi-threaded compression. This brings close N times faster compression where N is the number of CPU cores. Because of this, liblzma now depends on libthr. Soon libarchive will be modified to use the new lzma API. Thanks to antoine@ for the exp-run. Differential Revision: https://reviews.freebsd.org/D1786 Reviewed by: bapt
* Bump .Dd per r278329ngie2015-02-061-1/+1
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* Document WITNESS_COUNT and WITNESS_NO_VNODEngie2015-02-061-0/+24
| | | | | | | Reviewed by: bcr, kib Differential Revision: D1789 MFC after: 3 days Sponsored by: EMC / Isilon Storage Division
* Add a new device control utility for new-bus devices called devctl. Thisjhb2015-02-062-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | allows the user to request administrative changes to individual devices such as attach or detaching drivers or disabling and re-enabling devices. - Add a new /dev/devctl2 character device which uses ioctls for device requests. The ioctls use a common 'struct devreq' which is somewhat similar to 'struct ifreq'. - The ioctls identify the device to operate on via a string. This string can either by the device's name, or it can be a bus-specific address. (For unattached devices, a bus address is the only way to locate a device.) Bus drivers register an eventhandler to claim unrecognized device names that the driver recognizes as a valid address. Two buses currently support addresses: ACPI recognizes any device in the ACPI namespace via its full path starting with "\" and the PCI bus driver recognizes an address specification of 'pci[<domain>:]<bus>:<slot>:<func>' (identical to the PCI selector strings supported by pciconf). - To make it easier to cut and paste, change the PnP location string in the PCI bus driver to output a full PCI selector string rather than 'slot=<slot> function=<func>'. - Add a devctl(3) interface in libdevctl which provides a wrapper around the ioctls and is the preferred interface for other userland code. - Add a devctl(8) program which is a simple wrapper around the requests supported by devctl(3). - Add a device_is_suspended() function to check DF_SUSPENDED. - Add a resource_unset_value() function that can be used to remove a hint from the kernel environment. This is used to clear a hint.<driver>.<unit>.disabled hint when re-enabling a boot-time disabled device. Reviewed by: imp (parts) Requested by: imp (changing PCI location string) Relnotes: yes
* Clean up more usb related files when MK_USB == no when dealing withngie2015-02-044-66/+86
| | | | | | | | manpages, libraries, and binaries MFC after: 1 week X-MFC with: r278135 Sponsored by: EMC / Isilon Storage Division
* Regen src.conf(5)ngie2015-02-041-1/+55
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* Add MK_FILE to control whether or not to build file(1), libmagic(3), etcngie2015-02-041-0/+1
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Add the following options to enable/disable several features in the base systemngie2015-02-041-0/+9
| | | | | | | | | | | | | | | WITHOUT_BOOTPARAMD - bootparamd WITHOUT_BOOTPD - bootpd WITHOUT_FINGER - finger, fingerd WITHOUT_FTP - ftp, ftpd WITHOUT_INETD - inetd WITHOUT_RBOOTD - rbootd WITHOUT_TCP_WRAPPERS - tcpd, et al WITHOUT_TFTP - tftp, tftp-server WITHOUT_TIMED - timed MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Conditionalize building radius support into libpam, ppp, etc viangie2015-02-041-0/+1
| | | | | | | MK_RADIUS_SUPPORT MFC after: 1 week Sponsored by: EMC / Isilon Storage Division
* Add myself (erj) to committers-src.dot.erj2015-01-301-0/+4
| | | | Approved by: gnn (mentor), jfv (mentor)
* Add note that contigfree(9) does not accept NULLemaste2015-01-301-1/+8
| | | | Differential Revision: https://reviews.freebsd.org/D1721
* sfxge: Separate software Tx queue limit for non-TCP trafficarybchik2015-01-291-4/+12
| | | | | | | | | | | | | | | | | Add separate software Tx queue limit for non-TCP traffic to make total limit higher and avoid local drops of TCP packets because of no backpressure. There is no point to make non-TCP limit high since without backpressure UDP stream easily overflows any sensible limit. Split early drops statistics since it is better to have separate counter for each drop reason to make it unabmiguous. Add software Tx queue high watermark. The information is very useful to understand how big queues grow under traffic load. Sponsored by: Solarflare Communications, Inc. Approved by: gnn (mentor)
* sfxge: implemented parameter to restrict RSS channelsarybchik2015-01-291-0/+4
| | | | | | Submitted by: Artem V. Andreev <Artem.Andreev at oktetlabs.ru> Sponsored by: Solarflare Communications, Inc. Approved by: gnn (mentor)
* Update release(7) to reflect renaming the 'system' targetgjb2015-01-281-2/+2
| | | | | | | | to 'disc1'. MFC after: 3 weeks X-MFC-with: r277458, r277536, r277606, r277609, r277836 Sponsored by: The FreeBSD Foundation
* Rewrite pmap_enter(9) man page.kib2015-01-271-22/+118
| | | | | | | In collaboration with: alc Differential Revision: https://reviews.freebsd.org/D1531 Sponsored by: The FreeBSD Foundation and EMC / Isilon Storage Division MFC after: 1 week
* Regen src.conf(5)ngie2015-01-261-1/+18
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* Add MK_AUTOFS knob for building and installing autofs(4), et alngie2015-01-262-1/+5
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Add MK_BHYVE knob for building and installing bhyve(4), et alngie2015-01-263-3/+12
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Add MK_HAST knob for building and installing hastd(8), et alngie2015-01-262-6/+10
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* spl man page hasn't been relevant for a while, retire it.imp2015-01-252-241/+0
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* Regen src.conf(5)ngie2015-01-251-3/+31
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* Add MK_CCD knob for building and installing ccd(4), ccdconfig, etcngie2015-01-252-1/+6
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Add MK_BSDINSTALL knob for building and installing bsdinstallngie2015-01-251-0/+1
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Add MK_TALK knob for building the talk and talkdngie2015-01-251-0/+1
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Add MK_ISCSI knob for building the iscsi initiator, iscsi daemon, kernelngie2015-01-252-2/+7
| | | | | | | modules, etc MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Document the fact that modules declared with SYSCALL_MODULE(9) have theirmarkj2015-01-251-3/+3
| | | | | | names prefixed with "sys/". MFC after: 3 days
* Only build share/dtrace if MK_CDDL != nongie2015-01-251-1/+5
| | | | | MFC after: 1 week Sponsored by: EMC / Isilon Storage Division
* Add MK_EE knob to control installing edit, ee, etcngie2015-01-251-0/+1
| | | | | MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division
* Provide individual prototype and generate macros for the red-black tree.kib2015-01-241-1/+70
| | | | | | | This helps to reduce code size in statically linked applications. Submitted by: Sebastian Huber <sebastian.huber@embedded-brains.de> MFC after: 2 weeks
* Add futimens and utimensat system calls.jilles2015-01-231-2/+6
| | | | | | | | | | | | | | The core kernel part is patch file utimes.2008.4.diff from pluknet@FreeBSD.org. I updated the code for API changes, added the manual page and added compatibility code for old kernels. There is also audit and Capsicum support. A new UTIME_* constant might allow setting birthtimes in future. Differential Revision: https://reviews.freebsd.org/D1426 Submitted by: pluknet (partially) Reviewed by: delphij, pluknet, rwatson Relnotes: yes
* Fix usage example in kvprintf(9) and its copy in libstand(3): trailing '\n'danfe2015-01-231-1/+1
| | | | | | | | | | | | | in bitfield argument is wrong, as it will be treated as bit 10, causing any code printing >=10 bits with bit 10 on as having a trailing comma. Newline (intended one) should be part of the format string (already present in the examples). Also fix grammar and kill EOL whitespace in comment while here. PR: 195005 Approved by: bdrewery
* Revert for r277213:hselasky2015-01-222-402/+459
| | | | | | | | | | | FreeBSD developers need more time to review patches in the surrounding areas like the TCP stack which are using MPSAFE callouts to restore distribution of callouts on multiple CPUs. Bump the __FreeBSD_version instead of reverting it. Suggested by: kmacy, adrian, glebius and kib Differential Revision: https://reviews.freebsd.org/D1438
* "softc" is short for "software context", use that phrase in thegavin2015-01-211-2/+2
| | | | | | device_get_softc(9) man page. MFC after: 1 week
*-. Merge the following revisions from ^/projects/release-vmimage:gjb2015-01-201-1/+72
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | r273823-r273826, r273833, r273836, r273944, r274069-r274071, r274134, r274211, r274280-r274285, r274287-r274288, r274292, r274296-r274297, r274356, r274533, r274725, r274726, r274729, r274734, r274771, r274945-r274946, r277180, r277183-r277184, r277186-r277187, r277250-r277253, r277263-r277264, r277383-r277384, r277393-r277395, r277438-r277439, r277447, r277455: r273823: Move virtual machine / cloud provider targets and options from release/Makefile to their own Makefile. r273824: Add glue to allow enabling building cloud provider VM images by default. When WITH_CLOUDWARE is not empty, add CLOUDTARGETS to the release/Makefile 'release' target. r273825: Avoid hard-coding the Azure image file format. While here, avoid using OSRELEASE for the output file name. r273826: Remove a few vestiges of passing an exit code to panic(). r273833: Initial commit providing a mechanism to create openstack images as part of the release build. r273836: Fix output file name for openstack images. No further conversion is necessary for this VM file target, so there is no need to append the '.raw' suffix here. r273944: Uncomment the cloudinit rc.conf(5) line. r274069: Add line continuation so OPENSTACKCONF is actually included in the env(1). r274070: Add a 'vm-cloudware' target, used to drive all targets in CLOUDTARGETS. r274071: Add examples for WITH_CLOUDWARE to release.conf.sample. Add WITH_CLOUDWARE evaluation to RELEASE_RMAKEFLAGS. r274134: Initial rewrite to consolidate VM image build scripts into one. r274211: Add write_partition_layout() used to populate the final image. Fix duplicated mkimg(1) call in vm_create_disk(). Add primitive (untested) PowerPC/PowerPC64 VM image support. Note: As it is currently written, the /boot/pmbr and /boot/{gptboot,boot1.hfs} use the build host and not the target build. Fixing this is likely going to be a hack in itself. r274280: Return if vm_create_disk() is unsuccessful. r274281: Add CLEANFILES entry for VM targets r274282: Add vm_extra_pre_umount() prototype to vmimage.subr. r274283: Fix DESTDIR for installworld, and make sure it is created before use. r274284: Move usage() from vmimage.subr to mk-vmimage.sh, in case vmimage.subr has not been sourced. r274285: Spell 'OPTARG' correctly. Actually call vm_create_base(). r274287: Fix line continuation in write_partition_layout(). Remove variable test that is no longer needed. r274288: Fix scheme flag to mkimg(1). r274292: mount(8) and umount(8) devfs(5) as needed. r274296: Change path for mk-vmimage.sh from ${TARGET}/ to scripts/ now that it is consolidated into one file. Fix paths for the base image and output disk image files. r274297: Call cleanup() after everything is done. r274356: Remove a stray directory from CLEANFILES. r274533: Set the boot partition type to 'apple-boot' for powerpc. r274725: In vm_install_base(), copy the host resolv.conf into the build chroot before attempting to do anything that requires working DNS (i.e., pkg bootstrap). In vm_extra_pre_umount(), remove the resolv.conf before the disk image is unmounted from the backing md(4). r274726 (cperciva): Silence errors when umounting the chroot's /dev, since it probably doesn't exist when we're running this. Unmount filesystems before attempting to destroy the md which holds them. r274729 (cperciva): Unmount filesystem and destroy md before we read the vnode from disk and package it into a disk image. Otherwise we end up packaging an unclean filesystem. r274734 (cperciva): Merge duplicative vm-CLOUDTYPE targets before additional duplication gets added by the impending arrival of ec2 and gcloud. r274771 (cperciva): Add NOSWAP option which can be set by a vmimage.conf file to specify that no swap space should be created in the image. This will be used by EC2 builds, since FreeBSD/EC2 allocates swap space on "ephemeral" disks which are physically attached to the Xen host node. r274945: In vm_extra_install_packages(), only bootstrap pkg(8) if VM_EXTRA_PACKAGES is empty. In vm_extra_pre_umount(), cleanup downloaded packages if pkg(8) was bootstrapped earlier. r274946: Fix indentation nit. r277180: In vm_extra_install_base(), do not install waagent in the openstack image, because it is not used. This appears to be a copy mistake. Remove vm_extra_install_base() from the openstack.conf entirely, since it does not need to be overridden. r277183: Enable the textmode console by default for VM images, since there is no way to tell if the environment will be able to use the graphics-mode console. r277184: Enable password-less sudo for openstack images. r277186: Update the VM_EXTRA_PACKAGES list for the openstack images. The documentation suggests doing a "just fetch this and run it"-style bootstrap, from which the list of dependencies was obtained (in github, at: pellaeon/bsd-cloudinit-installer) There is one Python dependency unmet, oslo.config, which is not in the Ports Collection. r277187: Add a comment to note that setting hw.vga.textmode=1 is temporary. r277250: Remove vm_extra_install_base() for the Azure image, now that the waagent exists in the ports tree. Add sysutils/azure-agent to the VM_EXTRA_PACKAGES list. In vm_extra_pre_umount(), remove the explicit pkg(8) install list, as dependencies are resolved by sysutils/azure-agent. r277251: Add a 'list-cloudware' target to print the list of supported CLOUDWARE values and a description. Add the AZURE_DESC and OPENSTACK_DESC descriptions. r277252: Update release(7) r277253: Add 'list-vmtargets' target, which produces a list of all supported VM and cloud provider images. Add VHD_DESC, VMDK_DESC, QCOW2_DESC, RAW_DESC image descriptions. Format the output to make a bit more readable. Update release(7) to document the list-vmtargets target. r277263: Add initial support for the GCE (Google Compute Engine) cloud hosting provider image. r277264: Style and line length cleanup. r277383: Remove the console setting from rc.conf(5), which is not used there. While here, set console to include vidconsole in the loader.conf(5). r277384: Fix an indentation nit. No functional changes. r277393: Remove the pkg-clean(8) call from vm_extra_pre_umount() since the function is often overridden. Add vm_extra_pkg_rmcache() to call pkg-clean(8) to avoid duplicated code. r277394: Move resolv.conf(5) removal back to vm_extra_pre_umount() where it belongs. The GCE image needs resolv.conf(5) to exist (created as part of the image setup), so it cannot be removed. r277395: Comment the line that configures ttys(5) to 'off', which makes it impossible to test that the image boots. Add a note explaining why the line is commented, and not (yet) removed entirely. r277438: Move the 'install' bits that are specific to virtual machine images from the Makefile to Makefile.vm. Rename the 'install' target to 'release-install', and add a new 'vm-install' target. Add a new 'install' target that invokes the new targets. r277439: Add WITH_CLOUDWARE to the list of make(1) variables for the release build. r277447: Remove hw.vga.textmode=1 from the VM image loader.conf, which was included during test builds and not intended to be included when merging this project branch back to head. r277455: Remove mk-azure.sh, which is no longer needed. MFC after: 1 month X-MFC-To: stable/10 (requires mkimg(1)) Help from: cperciva, swills Relnotes: yes Sponsored by: The FreeBSD Foundation
| | * Add 'list-vmtargets' target, which produces a list ofgjb2015-01-161-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | all supported VM and cloud provider images. Add VHD_DESC, VMDK_DESC, QCOW2_DESC, RAW_DESC image descriptions. Format the output to make a bit more readable. Update release(7) to document the list-vmtargets target. Sponsored by: The FreeBSD Foundation
| | * Update release(7):gjb2015-01-161-1/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Add a "CLOUD HOSTING MACHINE IMAGES" section, documenting the CLOUDWARE and WITH_CLOUDWARE make(1) environment variables. - Document the vm-cloudware and list-cloudware targets. - Add release/Makefile.vm, release/tools/*.conf and release/tools/vmimage.subr to FILES. Sponsored by: The FreeBSD Foundation
* | | - Add jbeich as a ports committerjbeich2015-01-201-0/+3
| | | | | | | | | | | | | | | | | | | | | - List bapt and flo as his mentors Differential Revision: https://reviews.freebsd.org/D1562 Approved by: flo (mentor)
* | | For armv6 builds, add -mfloat-abi=softfp. This tells the compiler it canian2015-01-191-0/+4
| | | | | | | | | | | | | | | | | | | | | use floating point hardware instructions (because all armv6/7 systems we support have fp hardware), but it passes args using a soft-float compatible ABI. This should give noticible performance improvement (but not as much as using the armv6hf arch).
* | | Make the error message explicit instead of just printing the usage if theneel2015-01-181-5/+11
| | | | | | | | | | | | | | | | | | | | | virtual machine name is not specified. Requested by: grehan MFC after: 1 week
* | | Add a ${CP} alias for copying files in the build.will2015-01-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some users build FreeBSD as non-root in Perforce workspaces. By default, Perforce sets files read-only unless they're explicitly being edited. As a result, the -f argument must be used to cp in order to override the read-only flag when copying source files to object directories. Bare use of 'cp' should be avoided in the future. Update all current users of 'cp' in the src tree. Reviewed by: emaste MFC after: 1 week Sponsored by: Spectra Logic
* | | Eliminate SIOCGIFADDR handling in bpf.melifaro2015-01-161-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Quoting 19 years bpf.4 manual from bpf-1.2a1: " (SIOCGIFADDR is obsolete under BSD systems. SIOCGIFCONF should be used to query link-level addresses.) " * SIOCGIFADDR was not imported in NetBSD (bpf.c 1.36) and OpenBSD. * Last bits (e.g. manpage claiming SIOCGIFADDR exists) was cleaned from NetBSD via kern/21513 5 years ago, from OpenBSD via documentation/6352 5 years ago.
* | | Add needed bits to the Makefile, and the Mt to the emails.jfv2015-01-153-4/+8
| | | | | | | | | | | | | | | | | | Thanks to Nathan and Baptiste for the corrections :) MFC after: 1 week
* | | First draft man pages for ixl and ixlv drivers.jfv2015-01-152-0/+328
| | | | | | | | | | | | MFC after: 1 week
* | | Evaluate running userland/kernel version in dailygjb2015-01-151-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | periodic(8) run, taken from uname(1) '-U' and '-K' flags. Reviewed by: allanjude, dvl Differential Revision: https://reviews.freebsd.org/D1541 MFC after: 1 week Sponsored by: The FreeBSD Foundation
* | | Major callout subsystem cleanup and rewrite:hselasky2015-01-152-459/+402
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Close a migration race where callout_reset() failed to set the CALLOUT_ACTIVE flag. - Callout callback functions are now allowed to be protected by spinlocks. - Switching the callout CPU number cannot always be done on a per-callout basis. See the updated timeout(9) manual page for more information. - The timeout(9) manual page has been updated to reflect how all the functions inside the callout API are working. The manual page has been made function oriented to make it easier to deduce how each of the functions making up the callout API are working without having to first read the whole manual page. Group all functions into a handful of sections which should give a quick top-level overview when the different functions should be used. - The CALLOUT_SHAREDLOCK flag and its functionality has been removed to reduce the complexity in the callout code and to avoid problems about atomically stopping callouts via callout_stop(). If someone needs it, it can be re-added. From my quick grep there are no CALLOUT_SHAREDLOCK clients in the kernel. - A new callout API function named "callout_drain_async()" has been added. See the updated timeout(9) manual page for a complete description. - Update the callout clients in the "kern/" folder to use the callout API properly, like cv_timedwait(). Previously there was some custom sleepqueue code in the callout subsystem, which has been removed, because we now allow callouts to be protected by spinlocks. This allows us to tear down the callout like done with regular mutexes, and a "td_slpmutex" has been added to "struct thread" to atomically teardown the "td_slpcallout". Further the "TDF_TIMOFAIL" and "SWT_SLEEPQTIMO" states can now be completely removed. Currently they are marked as available and will be cleaned up in a follow up commit. - Bump the __FreeBSD_version to indicate kernel modules need recompilation. - There has been several reports that this patch "seems to squash a serious bug leading to a callout timeout and panic". Kernel build testing: all architectures were built MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D1438 Sponsored by: Mellanox Technologies Reviewed by: jhb, adrian, sbruno and emaste
* | | Mention /net in hier(7).trasz2015-01-141-1/+5
| |/ |/| | | | | | | MFC after: 1 month Sponsored by: The FreeBSD Foundation
* | fix IV size of XTS to be correct at 8 bytes.. That is what both thejmg2015-01-121-2/+2
| | | | | | | | AES-NI code and the software code expects..
* | Mdoc markup and style cleanup.brueffer2015-01-121-8/+14
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* | Remove the support for NGM_CISCO_GET_IPADDR message from ng_iface(4). Theglebius2015-01-121-7/+1
| | | | | | | | | | | | | | | | | | | | legitimacy of removal is proved by the fact that implementation contained a critical bug: the response allocated was sizeof(pointer), while should had been 2*sizeof(struct ng_cisco_ipaddr). The reason for ng_iface(4) to support ng_cisco(4) message isn't explained anywhere, and code comes from original Whistle import. Sponsored by: Nginx, Inc.
* | DCTCP (Data Center TCP) implementation.hiren2015-01-123-1/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DCTCP congestion control algorithm aims to maximise throughput and minimise latency in data center networks by utilising the proportion of Explicit Congestion Notification (ECN) marked packets received from capable hardware as a congestion signal. Highlights: Implemented as a mod_cc(4) module. ECN (Explicit congestion notification) processing is done differently from RFC3168. Takes one-sided DCTCP into consideration where only one of the sides is using DCTCP and other is using standard ECN. IETF draft: http://tools.ietf.org/html/draft-bensley-tcpm-dctcp-00 Thesis report by Midori Kato: https://eggert.org/students/kato-thesis.pdf Submitted by: Midori Kato <katoon@sfc.wide.ad.jp> and Lars Eggert <lars@netapp.com> with help and modifications from hiren Differential Revision: https://reviews.freebsd.org/D604 Reviewed by: gnn
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