Commit Graph

17 Commits

Author SHA1 Message Date
Alexander Kabaev
151ba7933a Do pass removing some write-only variables from the kernel.
This reduces noise when kernel is compiled by newer GCC versions,
such as one used by external toolchain ports.

Reviewed by: kib, andrew(sys/arm and sys/arm64), emaste(partial), erj(partial)
Reviewed by: jhb (sys/dev/pci/* sys/kern/vfs_aio.c and sys/kern/kern_synch.c)
Differential Revision: https://reviews.freebsd.org/D10385
2017-12-25 04:48:39 +00:00
Ed Maste
3bfef74a1f vnic: report that the driver supports multicast
The driver is currently hardcoded to force promiscuous mode, so all of
the MAC filtering code is presently unused and multicast should "just
work."  Report to the higher layers that multicast is supported.

PR:		223573
Reported by:	bz
Sponsored by:	The FreeBSD Foundation, Packet.net (hardware)
2017-11-14 16:31:11 +00:00
Stephen J. Kiernan
d0b2cad1ca Add the folowing set accessor functions for recently-added members of ifnet
structure:

if_gethwtsomax(), if_sethwtsomax()                 - if_hw_tsomax
if_gethwtsomaxsegcount(), if_sethwtsomaxsegcount() - if_hw_tsomaxsegcount
if_gethwtsomaxsegsize(), if_sethwtsomaxsegsize()   - if_hw_tsomaxsegsize

Update em and vnic drivers which had already been coverted to use accessor
functions for the other ifnet structure members.

Reviewed by:	erj
Approved by:	sjg (mentor)
Obtained from:	Juniper Networks, Inc.
Differential Revision:	https://reviews.freebsd.org/D8544
2017-01-31 16:12:31 +00:00
Wojciech Macek
f4aafb9ea6 Allow building VNIC as a module
Add directory structure and fix dependencies to be able to
build and use Cavium VNIC driver as a module.

Reviewed by:	zbb
Obtained from:	Semihalf
Sponsored by:	Cavium
Differential Revision:	https://reviews.freebsd.org/D6345
2016-05-20 11:00:06 +00:00
Zbigniew Bodek
0ef477ea8c Add support for MTU chaning and Jumbo frames to VNIC
Enable previously added code for MTU handling (based on
Cavium 1.0 driver released on BSD license).
This commit enables possibility to change MTU on VNIC driver.

Obtained from: Semihalf
Sponsored by:  Cavium
2016-05-11 13:42:20 +00:00
Zbigniew Bodek
8191a87959 Add HW RSS support to VNIC driver
Based on v1.0 driver provided by Cavium under BSD license.
Support in-hardware RSS to distribute IP, UDP and TCP traffic
among available RX Queues and hence multiple CPUs.

Reviewed by:	wma
Obtained from:	Semihalf
Sponsored by:	Cavium
Differential Revision: https://reviews.freebsd.org/D6230
2016-05-11 13:22:13 +00:00
Zbigniew Bodek
ec6f8f42db Bind CQ interrupts and tasks to separate CPUs in VNIC
Delegate interrupts and completion tasks on separate CPUs
for each VNIC.

Reviewed by:	wma
Obtained from:	Semihalf
Sponsored by:	Cavium
Differential Revision: https://reviews.freebsd.org/D6229
2016-05-11 13:20:29 +00:00
Zbigniew Bodek
36a947e91e Don't omit m_dup() for non-writeable mbufs that need checksum calculation
If the driver is not active or link is down the packet could remain
non-writeable. This commit makes all mbufs enqueued to the driver's
ring buffer to have correct attributes.

Pointed out by: wma
Reviewed by:    wma
Obtained from:  Semihalf
Sponsored by:   Cavium
Differential Revision: https://reviews.freebsd.org/D5800
2016-03-31 13:23:43 +00:00
Zbigniew Bodek
7c617ace70 Improve TX path of the VNIC driver
- Avoid memory leak when nicvf_tx_mbuf_locked() fails
- Introduce nicvf_xmit_locked() routine that uses drbr_peek(),
  drbr_advance() or drbr_putback() for a specific ifnet.
  This gives more clear and efficient design as well as
  prevents from dropping mbufs that where not sent due to temporary
  lack of descriptors.
- Add missing ETHER_BPF_MTAP() hook

Pointed out by: yongari
Reviewed by:    wma
Obtained from:  Semihalf
Sponsored by:   Cavium
Differential Revision: https://reviews.freebsd.org/D5534
2016-03-31 13:10:29 +00:00
Zbigniew Bodek
af8fe8f169 Introduce HW TSO support for VNIC
This feature was added in Pass2.0.
Significantly improves VNIC's TCP performance on Tx.

Reviewed by:   wma
Obtained from: Semihalf
Sponsored by:  Cavium
Differential Revision: https://reviews.freebsd.org/D5424
2016-02-25 14:29:57 +00:00
Zbigniew Bodek
332c869727 Improve VNIC performance on Tx path by immediate packet transmission
Don't postpone Tx if the Tx lock can be acquired now.
This gives 3x better performance on egress.

Reviewed by:   wma
Obtained from: Semihalf
Sponsored by:  Cavium
Differential Revision: https://reviews.freebsd.org/D5325
2016-02-25 14:23:02 +00:00
Zbigniew Bodek
6dc234599f Clean-up network interface settings for VNIC
- Remove unrelevant bits
- Remove redundant code
- Reset variables and then set given bits

Reviewed by:   wma
Obtained from: Semihalf
Sponsored by:  Cavium
Differential Revision: https://reviews.freebsd.org/D5324
2016-02-25 14:21:04 +00:00
Zbigniew Bodek
44f2eb96bd Enable HWSTATS capability for VNIC
VNIC manages counters in hardware hence it is desired to have this
option enabled to avoid redundant stats update in ether_input_internal().

Reviewed by:   wma
Obtained from: Semihalf
Sponsored by:  Cavium
Differential Revision: https://reviews.freebsd.org/D5323
2016-02-25 14:19:02 +00:00
Zbigniew Bodek
053f3d0e7e Enable LRO support for VNIC driver
Support for software LRO when enabled in the capabilities

Reviewed by:   wma
Obtained from: Semihalf
Sponsored by:  Cavium
Differential Revision: https://reviews.freebsd.org/D5321
2016-02-25 14:14:46 +00:00
Zbigniew Bodek
856dce91c0 Add support for hardware Tx and Rx checksums to VNIC driver
- The network controller verifies Rx TCP/UDP/SCTP checksums by default.
  Communicate this to the stack when the packet is not marked as erroneous
  to avoid redundant checksum calculation in kernel.
- It is not uncommon to get the mbuf with m_len that is less than
  the minimal size for the IP, TCP, UDP, etc. when HW checsumming
  is enabled. To avoid data corruption performed by the HW that is
  intended to write IP and TCP/UDP/SCTP checksums to the data segment,
  the mbuf needs to be pulled up by the required number of bytes.
- Make sure that one can modify the mbufs that require checsum calculation
  rather than check for NULL mbuf on each transmission.

Reviewed by:   wma
Obtained from: Semihalf
Sponsored by:  Cavium
Differential Revision: https://reviews.freebsd.org/D5320
2016-02-25 14:12:51 +00:00
Zbigniew Bodek
2306b72a5d Introduce initial support for Cavium's ThunderX networking interface
- The driver consists of three main componens: PF, VF, BGX
- Requires appropriate entries in DTS and MDIO driver
- Supports only FDT configuration
- Multiple Tx queues and single Rx queue supported
- No RSS, HW checksum and TSO support
- No more than 8 queues per-IF (only one Queue Set per IF)
- HW statistics enabled
- Works in all available MAC modes (1,10,20,40G)
- Style converted to BSD according to style(9)
- The code brings lmac_if interface used by the BGX driver to
  update its logical MACs state.

Obtained from: Semihalf
Sponsored by:  The FreeBSD Foundation
2015-10-18 22:02:58 +00:00
Zbigniew Bodek
3c0086b813 Raw import of ThunderX VNIC networking driver components
This import brings following components of the Linux driver:
- Thunder BGX (programmable MAC)
- Physical Function driver
- Virtual Function driver
- Headers

Revision:            1.0
Obtained from:       Cavium
License information: Cavium provided these files under BSD license
2015-10-18 21:39:15 +00:00