MFH @r292599

This includes the pluggable TCP framework and other chnages to the
netstack to track for VNET stability.

Security: The FreeBSD Foundation

sfxge: switch to TxQ creation specific flags

It is better do not mix TxQ creation and receive event flags since only
checksum flags are applicable to TxQ.
Also it will allow to add a new TxQ creatio

sfxge: switch to TxQ creation specific flags

It is better do not mix TxQ creation and receive event flags since only
checksum flags are applicable to TxQ.
Also it will allow to add a new TxQ creation specific flags.

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D4389

show more ...

Catch up with head.

sfxge: parse packets for TSO early in if_transmit

Submitted by: Artem V. Andreev <Artem.Andreev at oktetlabs.ru>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
Differential

sfxge: parse packets for TSO early in if_transmit

Submitted by: Artem V. Andreev <Artem.Andreev at oktetlabs.ru>
Sponsored by: Solarflare Communications, Inc.
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D4309

show more ...

Catch up with HEAD (r280229-r284686).

MFH: r282615-r283655

Sponsored by: The FreeBSD Foundation

Merge sync of head

sfxge: add 7xxx NICs family support

Support 7xxx adapters including firmware-assisted TSO and VLAN tagging:

- Solarflare Flareon Ultra 7000 series 10/40G adapters:
- Solarflare SFN7042Q QSFP+

sfxge: add 7xxx NICs family support

Support 7xxx adapters including firmware-assisted TSO and VLAN tagging:

- Solarflare Flareon Ultra 7000 series 10/40G adapters:
- Solarflare SFN7042Q QSFP+ Server Adapter
- Solarflare SFN7142Q QSFP+ Server Adapter

- Solarflare Flareon Ultra 7000 series 10G adapters:
- Solarflare SFN7022F SFP+ Server Adapter
- Solarflare SFN7122F SFP+ Server Adapter
- Solarflare SFN7322F Precision Time Synchronization Server Adapter

- Solarflare Flareon 7000 series 10G adapters:
- Solarflare SFN7002F SFP+ Server Adapter

Support utilities to configure adapters and update firmware.

The work is done by Solarflare developers
(Andy Moreton, Andrew Lee and many others),
Artem V. Andreev <Artem.Andreev at oktetlabs.ru> and me.

Sponsored by: Solarflare Communications, Inc.
MFC after: 2 weeks
Causually read by: gnn
Differential Revision: https://reviews.freebsd.org/D2618

show more ...

sfxge: relax assertion to allow RST flag in TSO packets

Kernel under stress load, mixed MC reboot and sfupdate really
generates TSO packet with RST flag.
It will generate many TCP packets with RST f

sfxge: relax assertion to allow RST flag in TSO packets

Kernel under stress load, mixed MC reboot and sfupdate really
generates TSO packet with RST flag.
It will generate many TCP packets with RST flag set.
May be RST flag should be set in the last segment only, but it could be
dropped. So, it is safer to keep the flag in all packets to be sure that
connection is reset.

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D2609

show more ...

sfxge: fix overflow queue freeze

If TxQ lock is obtained, deferred packet list shold be serviced even if
the packet addition fails because of overflow.

Without the patch freeze happens if:
- queue

sfxge: fix overflow queue freeze

If TxQ lock is obtained, deferred packet list shold be serviced even if
the packet addition fails because of overflow.

Without the patch freeze happens if:
- queue is not blocked (i.e. completion does not trigger unblock and service)
- put-list overflow (1024 entries)
- sfxge_tx_packet_add() acquires TxQ lock just as it is released it in
sfxge_tx_qdpl_service() on the second CPU but before pending check
- sfxge_tx_packet_add() swizzles put-list to get-list, fails because of
non-tcp get-list overflow and returns without packet list service
- sfxge_tx_qdpl_service() on the second CPU checks that there are no
pending packets in the put-list and returns

Other possible solution is to guaranee that maximum length of the put-list
is less than maximum length of any get-list.

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D2562

show more ...

sfxge: move mbuf free to sfxge_if_transmit()

It is a preparation to the next patch which will service packet queue even
if packet addtion fails.

Reviewed by: gnn
Sponsored by: Solarflare Commu

sfxge: move mbuf free to sfxge_if_transmit()

It is a preparation to the next patch which will service packet queue even
if packet addtion fails.

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D2552

show more ...

sfxge: get rid of locked variable in sfxge_tx_packet_add()

Now each branch has one and only one possible TxQ lock state.
It simplifies understanding of the code.

Reviewed by: gnn
Sponsored by:

sfxge: get rid of locked variable in sfxge_tx_packet_add()

Now each branch has one and only one possible TxQ lock state.
It simplifies understanding of the code.

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D2551

show more ...

sfxge: split sfxge_tx_qdpl_put() into *_locked() and *_unlocked()

It simplifies understanding of the sfxge_tx_packet_add() logic and
avoids passing of 'locked' to called function.

Reviewed by: g

sfxge: split sfxge_tx_qdpl_put() into *_locked() and *_unlocked()

It simplifies understanding of the sfxge_tx_packet_add() logic and
avoids passing of 'locked' to called function.

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D2547

show more ...

sfxge: advertise IPv6 Rx and Tx checksum offload support

Tx checksum offload may be enabled/disabled.

Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: h

sfxge: advertise IPv6 Rx and Tx checksum offload support

Tx checksum offload may be enabled/disabled.

Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D2543

show more ...

MFH: r280643-r281852

Sponsored by: The FreeBSD Foundation

Merge from HEAD

sfxge: fix bug in TSO when a DMA segment has both header and data

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.fr

sfxge: fix bug in TSO when a DMA segment has both header and data

Reviewed by: gnn
Sponsored by: Solarflare Communications, Inc.
MFC after: 2 days
Differential Revision: https://reviews.freebsd.org/D2163

show more ...

MFH: r278968-r280640

Sponsored by: The FreeBSD Foundation

sfxge: cleanup: fix index variable type to match upper boundary type

Sponsored by: Solarflare Communications, Inc.

sfxge: add statistics for each Tx queue

Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D2082

sfxge: remove obsolete Tx non-multi queue support

Tx multi queue is added in FreeBSD 8.0. So, the changeset drops earlier
versions support.

Sponsored by: Solarflare Communications, Inc.
Different

sfxge: remove obsolete Tx non-multi queue support

Tx multi queue is added in FreeBSD 8.0. So, the changeset drops earlier
versions support.

Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D2081

show more ...

sfxge: assert either kernel or internal copy of interface flags

ioctl to put interface down sets ifp->if_flags which holds the intended
administratively defined state and calls driver callback to ap

sfxge: assert either kernel or internal copy of interface flags

ioctl to put interface down sets ifp->if_flags which holds the intended
administratively defined state and calls driver callback to apply it.
When everything is done, driver updates internal copy of
interface flags sc->if_flags which holds the operational state.
So, transmit from Rx path is possible when interface is intended to be
administratively down in accordance with ifp->if_flags, but not applied
yet and the operational state is up in accordance with sc->if_flags.

Sponsored by: Solarflare Communications, Inc.
Differential Revision: https://reviews.freebsd.org/D2075

show more ...

Merge r278538 through r280226.

Merge from head

sfxge: prefetch txq->common if TxQ is started only

Transmit may be called when TxQ is not started yet (i.e. txq->common is
invalid). TxQ state is checked below when mbuf is processed and dropped
if

sfxge: prefetch txq->common if TxQ is started only

Transmit may be called when TxQ is not started yet (i.e. txq->common is
invalid). TxQ state is checked below when mbuf is processed and dropped
if TxQ is not started.

Sponsored by: Solarflare Communications, Inc.
Approved by: gnn (mentor)

show more ...