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|r365870||np||Sept. 18, 2020, 2:37 a.m.||if_vxlan(4): add support for hardware assisted checksumming, TSO, and RSS.
This lets a VXLAN pseudo-interface take advantage of hardware checksumming (tx and rx), TSO, and RSS if the NIC is capable of performing these operations on inner VXLAN traffic. A VXLAN interface inherits the capabilities of its vxlandev interface if one is specified or of the interface that hosts the vxlanlocal address. If other interfaces will carry traffic for that VXLAN then they must have the same hardware capabilities. On transmit, if_vxlan verifies that the outbound interface has the required capabilities and then translates the CSUM_ flags to their inner equivalents. This tells the hardware ifnet that it needs to operate on the inner frame and not the outer VXLAN headers. An event is generated when a VXLAN ifnet starts. This allows hardware drivers to configure their devices to expect VXLAN traffic on the specified incoming port. On receive, the hardware does RSS and checksum verification on the inner frame. if_vxlan now does a direct netisr dispatch to take full advantage of RSS. It is not very clear why it didn't do this already. Future work: Rx: it should be possible to avoid the first trip up the protocol stack to get the frame to if_vxlan just so it can decapsulate and requeue for a second trip up the stack. The hardware NIC driver could directly call an if_vxlan receive routine for VXLAN traffic instead. Rx: LRO. depends on what happens with the previous item. There will have to to be a mechanism to indicate that it's time for if_vxlan to flush its LRO state. Reviewed by: kib@ Relnotes: Yes Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25873ViewVC
|r365869||np||Sept. 18, 2020, 2:21 a.m.||Add a knob to allow zero UDP checksums for UDP/IPv6 traffic on the given UDP port.
This will be used by some upcoming changes to if_vxlan(4). RFC 7348 (VXLAN) says that the UDP checksum "SHOULD be transmitted as zero. When a packet is received with a UDP checksum of zero, it MUST be accepted for decapsulation." But the original IPv6 RFCs did not allow zero UDP checksum. RFC 6935 attempts to resolve this. Reviewed by: kib@ Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25873ViewVC
|r365868||np||Sept. 18, 2020, 2:10 a.m.||Add two new ifnet capabilities for hw checksumming and TSO for VXLAN traffic.|
|r365867||np||Sept. 18, 2020, 1:38 a.m.||mbuf checksum flags and fields to support tunneling protocols.
These are being added to support VXLAN but will work for GENEVE as well. ENCAP_RSVD1 will likely become ENCAP_GENEVE in the future. The size of struct mbuf does not change and that means this change can be MFC'd. If size wasn't a constraint a cleaner way may have been to add inner_csum_flags and inner_csum_data to go with csum_flags and csum_data. Reviewed by: kib@ Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D25873ViewVC
|r365863||kib||Sept. 17, 2020, 10:29 p.m.||State kgssapi dependency on xdr.
Submitted by: Dmitry Afanasiev PR: 249378 MFC after: 3 daysViewVC
|r365861||np||Sept. 17, 2020, 10:14 p.m.||cxgbe(4): Update T4/5/6 firmwares to 220.127.116.11.
Obtained from: Chelsio Communications MFC after: 3 days Sponsored by: Chelsio CommunicationsViewVC
|r365859||gbe||Sept. 17, 2020, 9:24 p.m.||arch(7): Some markup fixes
- no blank before trailing delimiter MFC after: 3 daysViewVC
|r365858||gbe||Sept. 17, 2020, 9:08 p.m.||man(9): Some markup fixes
- whitespace at end of input line - skipping paragraph macro: Pp after Sh MFC after: 3 daysViewVC
|r365857||gbe||Sept. 17, 2020, 8:55 p.m.||pwmbus(9): some markup fixes
- whitespace at end of input line MFC after: 3 daysViewVC
|r365856||gbe||Sept. 17, 2020, 8:53 p.m.||mbuf(9): Some markup fixes
- whitespace at end of input line - no blank before trailing delimiter: Dv MJUM16BYTES MFC after: 3 daysViewVC
|r365855||gbe||Sept. 17, 2020, 8:50 p.m.||crypto_buffer(9): Sort the SEE ALSO section
MFC after: 3 daysViewVC
|r365854||gbe||Sept. 17, 2020, 8:42 p.m.||VOP_INACTIVE(9): Remove trailing whitespace
MFC after: 3 daysViewVC
|r365853||gbe||Sept. 17, 2020, 8:37 p.m.||domainset(9): Some markup fixes
- new sentence, new line - whitespace at end of input line MFC after: 3 daysViewVC
|r365852||kevans||Sept. 17, 2020, 8:35 p.m.||Revert r361257: bsdinstall: do a `certctl rehash` upon installation [...]
As of r365829, any given base distribution set will now include the /etc/ssl symlinks that this rehash would've otherwise installed. This extra step is no longer required. MFC after: 1 week X-MFC-With: r365837ViewVC
|r365851||gbe||Sept. 17, 2020, 8:32 p.m.||rmlock(9): Some markup fixes
- new sentence, new line MFC after: 3 daysViewVC