FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F11.3.0 2019-02-12T09:26:05Z 2019-02-12T09:26:05Z Vincenzo Maffione vmaffione@FreeBSD.org 2019-02-12T09:26:05Z urn:sha1:adf75b88b6bf12a8e23193335dcffd9cab6125a1 netmap: refactor logging macros and pipes Changelist: - Replace ND, D and RD macros with nm_prdis, nm_prinf, nm_prerr and nm_prlim, to avoid possible naming conflicts. - Add netmap_krings_mode_commit() helper function and use that to reduce code duplication. - Refactor pipes control code to export some functions that can be reused by the veth driver (on Linux) and epair(4). - Add check to reject API requests with version less than 11. - Small code refactoring for the null adapter. 2019-01-28T09:27:28Z Vincenzo Maffione vmaffione@FreeBSD.org 2019-01-28T09:27:28Z urn:sha1:597222b7aa31394e32ae3d9c63ab249306d6ad51 netmap: fix crash with monitors and VALE ports Crash report described here: https://github.com/luigirizzo/netmap/issues/583 Fixed by providing dummy sync callback in case it is missing. 2018-12-04T17:40:56Z Vincenzo Maffione vmaffione@FreeBSD.org 2018-12-04T17:40:56Z urn:sha1:6d6d3f62b0e244d40adfbfc82c7f4b3aa1f14f70 netmap: align codebase to the current upstream (sha 8374e1a7e6941) Changelist: - Move large parts of VALE code to a new file and header netmap_bdg.[ch]. This is useful to reuse the code within upcoming projects. - Improvements and bug fixes to pipes and monitors. - Introduce nm_os_onattach(), nm_os_onenter() and nm_os_onexit() to handle differences between FreeBSD and Linux. - Introduce some new helper functions to handle more host rings and fake rings (netmap_all_rings(), netmap_real_rings(), ...) - Added new sysctl to enable/disable hw checksum in emulated netmap mode. - nm_inject: add support for NS_MOREFRAG Approved by: gnn (mentor) Differential Revision: https://reviews.freebsd.org/D17364 2015-07-19T18:04:51Z Luigi Rizzo luigi@FreeBSD.org 2015-07-19T18:04:51Z urn:sha1:05f7605789e29f4420c82a7e353bee658c333823 2015-07-10T05:51:36Z Luigi Rizzo luigi@FreeBSD.org 2015-07-10T05:51:36Z urn:sha1:847bf38369b6ea5abf8b6409006468cfe4f66d5e This commit contains large contributions from Giuseppe Lettieri and Stefano Garzarella, is partly supported by grants from Verisign and Cisco, and brings in the following: - fix zerocopy monitor ports and introduce copying monitor ports (the latter are lower performance but give access to all traffic in parallel with the application) - exclusive open mode, useful to implement solutions that recover from crashes of the main netmap client (suggested by Patrick Kelsey) - revised memory allocator in preparation for the 'passthrough mode' (ptnetmap) recently presented at bsdcan. ptnetmap is described in S. Garzarella, G. Lettieri, L. Rizzo; Virtual device passthrough for high speed VM networking, ACM/IEEE ANCS 2015, Oakland (CA) May 2015 http://info.iet.unipi.it/~luigi/research.html - fix rx CRC handing on ixl - add module dependencies for netmap when building drivers as modules - minor simplifications to device-specific routines (*txsync, *rxsync) - general code cleanup (remove unused variables, introduce macros to access rings and remove duplicate code, Applications do not need to be recompiled, unless of course they want to use the new features (monitors and exclusive open). Those willing to try this code on stable/10 can just update the sys/dev/netmap/*, sys/net/netmap* with the version in HEAD and apply the small patches to individual device drivers. MFC after: 1 month Sponsored by: (partly) Verisign, Cisco 2014-11-13T00:14:25Z Luigi Rizzo luigi@FreeBSD.org 2014-11-13T00:14:25Z urn:sha1:ad15cc59e95f6bad314fd84768624d9c7a013343 2014-08-16T15:00:01Z Luigi Rizzo luigi@FreeBSD.org 2014-08-16T15:00:01Z urn:sha1:4bf50f18eb272037afaa212738f3d82d4098e782 Mostly bugfixes or features developed in the past 6 months, so this is a 10.1 candidate. Basically no user API changes (some bugfixes in sys/net/netmap_user.h). In detail: 1. netmap support for virtio-net, including in netmap mode. Under bhyve and with a netmap backend [2] we reach over 1Mpps with standard APIs (e.g. libpcap), and 5-8 Mpps in netmap mode. 2. (kernel) add support for multiple memory allocators, so we can better partition physical and virtual interfaces giving access to separate users. The most visible effect is one additional argument to the various kernel functions to compute buffer addresses. All netmap-supported drivers are affected, but changes are mechanical and trivial 3. (kernel) simplify the prototype for *txsync() and *rxsync() driver methods. All netmap drivers affected, changes mostly mechanical. 4. add support for netmap-monitor ports. Think of it as a mirroring port on a physical switch: a netmap monitor port replicates traffic present on the main port. Restrictions apply. Drive carefully. 5. if_lem.c: support for various paravirtualization features, experimental and disabled by default. Most of these are described in our ANCS'13 paper [1]. Paravirtualized support in netmap mode is new, and beats the numbers in the paper by a large factor (under qemu-kvm, we measured gues-host throughput up to 10-12 Mpps). A lot of refactoring and additional documentation in the files in sys/dev/netmap, but apart from #2 and #3 above, almost nothing of this stuff is visible to other kernel parts. Example programs in tools/tools/netmap have been updated with bugfixes and to support more of the existing features. This is meant to go into 10.1 so we plan an MFC before the Aug.22 deadline. A lot of this code has been contributed by my colleagues at UNIPI, including Giuseppe Lettieri, Vincenzo Maffione, Stefano Garzarella. MFC after: 3 days.