FreeBSD source tree https://cgit-dev.freebsd.org/src/atom?h=releng%2F12.2 2019-09-15T14:26:19Z 2019-09-15T14:26:19Z Vincenzo Maffione vmaffione@FreeBSD.org 2019-09-15T14:26:19Z urn:sha1:3ca5cfaae880ab54469719c3c9fb224e75ac5005 netmap: import changes from upstream (SHA 137f537eae513) - Rework option processing. - Use larger integers for memory size values in the memory management code. 2019-04-01T10:51:24Z Vincenzo Maffione vmaffione@FreeBSD.org 2019-04-01T10:51:24Z urn:sha1:7af42e831191452c43cd97317624361b43125f3d netmap: add support for multiple host rings Some applications forward from/to host rings most or all the traffic received or sent on a physical interface. In this cases it is desirable to have more than a pair of RX/TX host rings, and use multiple threads to speed up forwarding. This change adds support for multiple host rings. On registering a netmap port, the user can specify the number of desired receive and transmit host rings in the nr_host_tx_rings and nr_host_rx_rings fields of the nmreq_register structure. 2019-02-07T10:44:03Z Vincenzo Maffione vmaffione@FreeBSD.org 2019-02-07T10:44:03Z urn:sha1:fdde8f329714ba111f495e1c3754bb157d41c8a9 netmap: upgrade sync-kloop support Add SYNC_KLOOP_MODE option, and add support for direct mode, where application executes the TXSYNC and RXSYNC in the context of the ioeventfd wake up callback. 2019-02-06T09:23:39Z Vincenzo Maffione vmaffione@FreeBSD.org 2019-02-06T09:23:39Z urn:sha1:93b1d6a0718beee11a62a7594cdaf637f8daffa9 netmap: improvements to the netmap kloop (CSB mode) Changelist: - Add the proper memory barriers in the kloop ring processing functions. - Fix memory barriers usage in the user helpers (nm_sync_kloop_appl_write, nm_sync_kloop_appl_read). - Fix nm_kr_txempty() helper to look at rhead rather than rcur. This is important since the kloop can read a value of rcur which is ahead of the value of rhead (see explanation in nm_sync_kloop_appl_write) - Remove obsolete ptnetmap_guest_write_kring_csb() and ptnet_guest_read_kring_csb(), and update if_ptnet(4) to use those. - Prepare in advance the arguments for netmap_sync_kloop_[tr]x_ring(), to make the kloop faster. - Provide kernel and user implementation for nm_ldld_barrier() and nm_ldst_barrier() 2018-12-11T11:31:13Z Vincenzo Maffione vmaffione@FreeBSD.org 2018-12-11T11:31:13Z urn:sha1:b321acab165f6ab6e821be03895eb40e5bff6fe7 netmap: align codebase to the current upstream (760279cfb2730a585) Changelist: - Replace netmap passthrough host support with a more general mechanism to call TXSYNC/RXSYNC from an in-kernel event-loop. No kernel threads are used to use this feature: the application is required to spawn a thread (or a process) and issue a SYNC_KLOOP_START (NIOCCTRL) command in the thread body. The kernel loop is executed by the ioctl implementation, which returns to userspace only when a different thread calls SYNC_KLOOP_STOP or the netmap file descriptor is closed. - Update the if_ptnet driver to cope with the new data structures, and prune all the obsolete ptnetmap code. - Add support for "null" netmap ports, useful to allocate netmap_if, netmap_ring and netmap buffers to be used by specialized applications (e.g. hypervisors). TXSYNC/RXSYNC on these ports have no effect. - Various fixes and code refactoring. Sponsored by: Sunny Valley Networks Differential Revision: https://reviews.freebsd.org/D18015 2018-10-30T08:36:36Z Vincenzo Maffione vmaffione@FreeBSD.org 2018-10-30T08:36:36Z urn:sha1:d740f837946a032c60ddba5cc4cbf899eb4fbaee 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: re (gjb) 2018-04-12T07:20:50Z Vincenzo Maffione vmaffione@FreeBSD.org 2018-04-12T07:20:50Z urn:sha1:2ff91c175eca50b7d0d9da6b31eae4109c034137 Changelist: - Turn tx_rings and rx_rings arrays into arrays of pointers to kring structs. This patch includes fixes for ixv, ixl, ix, re, cxgbe, iflib, vtnet and ptnet drivers to cope with the change. - Generalize the nm_config() callback to accept a struct containing many parameters. - Introduce NKR_FAKERING to support buffers sharing (used for netmap pipes) - Improved API for external VALE modules. - Various bug fixes and improvements to the netmap memory allocator, including support for externally (userspace) allocated memory. - Refactoring of netmap pipes: now linked rings share the same netmap buffers, with a separate set of kring pointers (rhead, rcur, rtail). Buffer swapping does not need to happen anymore. - Large refactoring of the control API towards an extensible solution; the goal is to allow the addition of more commands and extension of existing ones (with new options) without the need of hacks or the risk of running out of configuration space. A new NIOCCTRL ioctl has been added to handle all the requests of the new control API, which cover all the functionalities so far supported. The netmap API bumps from 11 to 12 with this patch. Full backward compatibility is provided for the old control command (NIOCREGIF), by means of a new netmap_legacy module. Many parts of the old netmap.h header has now been moved to netmap_legacy.h (included by netmap.h). Approved by: hrs (mentor) 2018-04-09T09:24:26Z Vincenzo Maffione vmaffione@FreeBSD.org 2018-04-09T09:24:26Z urn:sha1:4f80b14ce2b17100b12dc3a346fb9e6e76764e11 Changelist: - remove unused nkr_slot_flags - new nm_intr adapter callback to enable/disable interrupts - remove unused sysctls and document the other sysctls - new infrastructure to support NS_MOREFRAG for NIC ports - support for external memory allocator (for now linux-only), including linux-specific changes in common headers - optimizations within netmap pipes datapath - improvements on VALE control API - new nm_parse() helper function in netmap_user.h - various bug fixes and code clean up Approved by: hrs (mentor) 2017-11-27T15:23:17Z Pedro F. Giffuni pfg@FreeBSD.org 2017-11-27T15:23:17Z urn:sha1:fe267a559009cbf34f9341666fe4d88a92c02d5e Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended. 2016-10-27T09:46:22Z Luigi Rizzo luigi@FreeBSD.org 2016-10-27T09:46:22Z urn:sha1:844a6f0c5308cc9ef487f4c07394c88f3a5f5d4c - use PCI_VENDOR and PCI_DEVICE ids from a publicly allocated range (thanks to RedHat) - export memory pool information through PCI registers - improve mechanism for configuring passthrough on different hypervisors Code is from Vincenzo Maffione as a follow up to his GSOC work.