FreeBSD source tree https://cgit-dev.freebsd.org/src-test2/atom?h=release%2F12.0.0 2018-05-19T05:57:26Z 2018-05-19T05:57:26Z Matt Macy mmacy@FreeBSD.org 2018-05-19T05:57:26Z urn:sha1:24a7d6d3a6ac1bc35adeac8233ecf59afe1728bf 2018-05-18T03:38:17Z Matt Macy mmacy@FreeBSD.org 2018-05-18T03:38:17Z urn:sha1:cfa866f6a1ba4798cd6d877f0f0e4f45227efb9c Approved by: sbruno 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) 2018-04-04T21:31:12Z Vincenzo Maffione vmaffione@FreeBSD.org 2018-04-04T21:31:12Z urn:sha1:46023447b69f76174fb12abd910b9b6cba31345b The change upgrades the driver to use the split Communication Status Block (CSB) format. In this way the variables written by the guest and read by the host are allocated in a different cacheline than the variables written by the host and read by the guest; this is needed to avoid cache thrashing. Approved by: hrs (mentor) 2018-01-21T15:42:36Z Pedro F. Giffuni pfg@FreeBSD.org 2018-01-21T15:42:36Z urn:sha1:ac2fffa4b74cd83963f0d462c379c7f50eeabf20 Uses of mallocarray(9). The use of mallocarray(9) has rocketed the required swap to build FreeBSD. This is likely caused by the allocation size attributes which put extra pressure on the compiler. Given that most of these checks are superfluous we have to choose better where to use mallocarray(9). We still have more uses of mallocarray(9) but hopefully this is enough to bring swap usage to a reasonable level. Reported by: wosch PR: 225197 2018-01-13T22:30:30Z Pedro F. Giffuni pfg@FreeBSD.org 2018-01-13T22:30:30Z urn:sha1:26c1d774b55c4db79bca772941883244986e6f44 Focus on code where we are doing multiplications within malloc(9). None of these is likely to overflow, however the change is still useful as some static checkers can benefit from the allocation attributes we use for mallocarray. This initial sweep only covers malloc(9) calls with M_NOWAIT. No good reason but I started doing the changes before r327796 and at that time it was convenient to make sure the sorrounding code could handle NULL values. 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. 2016-10-18T16:18:25Z Luigi Rizzo luigi@FreeBSD.org 2016-10-18T16:18:25Z urn:sha1:a2a7409151457b42e1f1352c03ede7ef408ef05d fix build on 32 bit platforms simplify logic in netmap_virt.h The commands (in net/netmap.h) to configure communication with the hypervisor may be revised soon. At the moment they are unused so this will not be a change of API. 2016-10-16T15:22:17Z Luigi Rizzo luigi@FreeBSD.org 2016-10-16T15:22:17Z urn:sha1:a9e644cd242af7e0695f3d00a62ec5efdc67fc46