#
95ee2897 |
|
16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: two-line .h pattern Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
|
#
e330262f |
|
12-Jan-2023 |
Justin Hibbits <jhibbits@FreeBSD.org> |
Mechanically convert netmap(4) to IfAPI Reviewed by: vmaffione, zlei Sponsored by: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D37814
|
#
3da494d3 |
|
24-Dec-2022 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
netmap: drop compatibility FreeBSD code Netmap users on FreeBSD are not supposed to import code from the github netmap repository anymore. They should use the code that is available in the src repo. We can therefore drop the compatibility code. MFC after: 7 days
|
#
a9424e0f |
|
10-May-2022 |
John Baldwin <jhb@FreeBSD.org> |
netmap: Remove unused devclass arguments to DRIVER_MODULE.
|
#
6c3e93cb |
|
11-Feb-2020 |
Gleb Smirnoff <glebius@FreeBSD.org> |
Use NET_TASK_INIT() and NET_GROUPTASK_INIT() for drivers that process incoming packets in taskqueue context. Reviewed by: hselasky Differential Revision: https://reviews.freebsd.org/D23518
|
#
2ec213ab |
|
13-Jan-2020 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
netmap: disable passthrough with no hypervisor support The netmap passthrough subsystem requires proper support in the hypervisor. In particular, two PCI device ids (from the Red Hat PCI vendor id 0x1b36) need to be assigned to the two netmap virtual devices. We then disable these devices until the ids have not been assigned, in order to avoid conflicts with other virtual devices emulated by upstream QEMU. PR: 241774 MFC after: 3 days
|
#
f8bc74e2 |
|
18-Oct-2019 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
tap: add support for virtio-net offloads This patch is part of an effort to make bhyve networking (in particular TCP) faster. The key strategy to enhance TCP throughput is to let the whole packet datapath work with TSO/LRO packets (up to 64KB each), so that the per-packet overhead is amortized over a large number of bytes. This capability is supported in the guest by means of the vtnet(4) driver, which is able to handle TSO/LRO packets leveraging the virtio-net header (see struct virtio_net_hdr and struct virtio_net_hdr_mrg_rxbuf). A bhyve VM exchanges packets with the host through a network backend, which can be vale(4) or if_tap(4). While vale(4) supports TSO/LRO packets, if_tap(4) does not. This patch extends if_tap(4) with the ability to understand the virtio-net header, so that a tapX interface can process TSO/LRO packets. A couple of ioctl commands have been added to configure and probe the virtio-net header. Once the virtio-net header is set, the tapX interface acquires all the IFCAP capabilities necessary for TSO/LRO. Reviewed by: kevans Differential Revision: https://reviews.freebsd.org/D21263
|
#
d337c8c7 |
|
17-May-2019 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
netmap: align if_ptnet to the changes introduced by r347233 This removes non-functional SCTP checksum offload support. More information in the log message of r347233. MFC after: 2 weeks
|
#
75f4f3ed |
|
04-Feb-2019 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
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. MFC after: 1 week
|
#
f79ba6d7 |
|
23-Jan-2019 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
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() MFC after: 2 weeks
|
#
b6e66be2 |
|
05-Dec-2018 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
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
|
#
24a7d6d3 |
|
18-May-2018 |
Matt Macy <mmacy@FreeBSD.org> |
netmap and iflib drivers, silence unused var warnings
|
#
cfa866f6 |
|
17-May-2018 |
Matt Macy <mmacy@FreeBSD.org> |
netmap: pull fix for 32-bit support from upstream Approved by: sbruno
|
#
2ff91c17 |
|
12-Apr-2018 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
netmap: align codebase to the current upstream (commit id 3fb001303718146) 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)
|
#
4f80b14c |
|
09-Apr-2018 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
netmap: align codebase to upstream version v11.4 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)
|
#
46023447 |
|
04-Apr-2018 |
Vincenzo Maffione <vmaffione@FreeBSD.org> |
netmap: align if_ptnet guest driver to the upstream code (commit 0e15788) 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)
|
#
ac2fffa4 |
|
21-Jan-2018 |
Pedro F. Giffuni <pfg@FreeBSD.org> |
Revert r327828, r327949, r327953, r328016-r328026, r328041: 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
|
#
26c1d774 |
|
13-Jan-2018 |
Pedro F. Giffuni <pfg@FreeBSD.org> |
dev: make some use of mallocarray(9). 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.
|
#
844a6f0c |
|
27-Oct-2016 |
Luigi Rizzo <luigi@FreeBSD.org> |
Various fixes for ptnet/ptnetmap (passthrough of netmap ports). In detail: - 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.
|
#
a2a74091 |
|
18-Oct-2016 |
Luigi Rizzo <luigi@FreeBSD.org> |
remove stale and unused code from various files 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.
|
#
a9e644cd |
|
16-Oct-2016 |
Luigi Rizzo <luigi@FreeBSD.org> |
add two missing files for the netmap import
|