make format string a string literal.

Reported by: clang

Merge svn+ssh://svn.freebsd.org/base/head@209086

cxgb(4): add an 'nfilters' tunable that lets the user place an upper
limit on the number of hardware filters (and thus the amount of TCAM
reserved for filtering).

Merge svn+ssh://svn.freebsd.org/base/head@208557

MFC r208356.

Remove bad assertion.

Remove invalid assertion.

Holding the adapter lock while changing the LRO settings is sufficient.

PR: kern/146759
MFC after: 3 days

MFC r207639, r207643, r207687, r207688

r207639: Add IFCAP_LINKSTATE to cxgb
r207643: T3 hardware filters + cxgbtool interface to this functionality.
r207687: if_cxgb should not depend on the T3 firm

MFC r207639, r207643, r207687, r207688

r207639: Add IFCAP_LINKSTATE to cxgb
r207643: T3 hardware filters + cxgbtool interface to this functionality.
r207687: if_cxgb should not depend on the T3 firmware module directly.
r207688: various doorbell adjustments

show more ...

Merge svn+ssh://svn.freebsd.org/base/head@207793

Final update to current version of head in preparation for reintegration.

Do not hold the T3 firmware in memory all the time. firmware(9) can
load/unload it as needed.

Add support for hardware filters to cxgb(4). The T3 chip can inspect
L2/3/4 headers and can drop or steer packets as instructed. Filtering
based on src ip, dst ip, src port, dst port, 802.1q, udp/t

Add support for hardware filters to cxgb(4). The T3 chip can inspect
L2/3/4 headers and can drop or steer packets as instructed. Filtering
based on src ip, dst ip, src port, dst port, 802.1q, udp/tcp, and mac
addr is possible. Add support in cxgbtool to program these filters.
Some simple examples:

Drop all tcp/80 traffic coming from the subnet specified.
# cxgbtool cxgb2 filter 0 sip 192.168.1.0/24 dport 80 type tcp action drop

Steer all incoming UDP traffic to qset 0.
# cxgbtool cxgb2 filter 1 type udp queue 0 action pass

Steer all tcp traffic from 192.168.1.1 to qset 1.
# cxgbtool cxgb2 filter 2 sip 192.168.1.1 type tcp queue 1 action pass

Drop fragments.
# cxgbtool cxgb2 filter 3 type frag action drop

List all filters.
# cxgbtool cxgb2 filter list
index SIP DIP sport dport VLAN PRI P/MAC type Q
0 192.168.1.0/24 0.0.0.0 * 80 0 0/1 */* tcp -
1 0.0.0.0/0 0.0.0.0 * * 0 0/1 */* udp 0
2 192.168.1.1/32 0.0.0.0 * * 0 0/1 */* tcp 1
3 0.0.0.0/0 0.0.0.0 * * 0 0/1 */* frag -
16367 0.0.0.0/0 0.0.0.0 * * 0 0/1 */* * *

MFC after: 2 weeks

show more ...

Add IFCAP_LINKSTATE to cxgb's capabilities.

MFC after: 3 days

Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify thi

Add new tunable 'net.link.ifqmaxlen' to set default send interface
queue length. The default value for this parameter is 50, which is
quite low for many of today's uses and the only way to modify this
parameter right now is to edit if_var.h file. Also add read-only
sysctl with the same name, so that it's possible to retrieve the
current value.

MFC after: 1 month

show more ...

Update to current version of head.

Merge svn+ssh://svn.freebsd.org/base/head@206571

cxgb(4) MFCs: r204271,r204274,r204348,r204921,r205944,r205945,r205946,r205947,r205948,r205949,r205950,r206109

r204271:
Accessing an mbuf after it has been handed off to the hardware is a bad
race as

cxgb(4) MFCs: r204271,r204274,r204348,r204921,r205944,r205945,r205946,r205947,r205948,r205949,r205950,r206109

r204271:
Accessing an mbuf after it has been handed off to the hardware is a bad
race as it could already have been tx'd and freed by that time. Place
the bpf tap just _before_ writing the gen bit.

This fixes a panic when running tcpdump on a cxgb interface.

r204274:
There is no need to test __FreeBSD_version for features that have
been around for a long time now (7.1-ish or even earlier); assume
they are present. These includes MSI, TSO, LRO, VLAN, INTR_FILTERS,
FIRMWARE, etc.

Also, eliminate some dead code and clean up in other places as part
of this quick once-over.

r204348:
Support IFCAP_VLANHWTSO in cxgb(4). It works with or without vlanhwtag.
While here, remove old DPRINTFs and tidy up the capability code a bit.

r204921:
Better TwinAx transceiver detection.

Originally submitted by: <Bruno dot Bittner at isilon dot com>
(This is a rewritten, corrected version of that patch)

r205944:
Refresh the firmware version immediately after it is upgraded (or downgraded).

r205945:
Improved PHY EDC settings.

r205946:
Do not attempt to retrieve interrupt information before it is available.

r205947:
Fix build with "nooptions INET"

r205948:
Fix tx drop statistics.

r205949:
Fix signed/unsigned mix-up that allowed txq->in_use to grow beyond txq->size.

r205950:
Multiple fixes related to queue set sizing and resources:

- Only the tunnelq (TXQ_ETH) requires a buf_ring, an ifq, and the watchdog/timer
callouts. Do not allocate these for the other tx queues.

- Use 16k jumbo clusters only on offload capable cards by default.

- Do not allocate a full tx ring for the offload queue if the card is not
offload capable.

- Slightly better freelist size calculation.

- Fix nmbjumbo4 typo, remove unneeded global variables.

r206109:
Increase response queue size to avoid starvation, add a counter
to track it when it does occur.

show more ...

Increase response queue size to avoid starvation, add a counter
to track it when it does occur.

Merge svn+ssh://svn.freebsd.org/base/head@206063

Multiple fixes related to queue set sizing and resources:

- Only the tunnelq (TXQ_ETH) requires a buf_ring, an ifq, and the watchdog/timer
callouts. Do not allocate these for the other tx queues.

Multiple fixes related to queue set sizing and resources:

- Only the tunnelq (TXQ_ETH) requires a buf_ring, an ifq, and the watchdog/timer
callouts. Do not allocate these for the other tx queues.

- Use 16k jumbo clusters only on offload capable cards by default.

- Do not allocate a full tx ring for the offload queue if the card is not
offload capable.

- Slightly better freelist size calculation.

- Fix nmbjumbo4 typo, remove unneeded global variables.

MFC after: 3 days

show more ...

Fix tx drop statistics.

MFC after: 3 days

Do not attempt to retrieve interrupt information before it is available.

MFC after: 3 days

Refresh the firmware version immediately after it is upgraded (or downgraded).

MFC after: 3 days

Better TwinAx transceiver detection.

Originally submitted by: <Bruno dot Bittner at isilon dot com>
(This is a rewritten, corrected version of that patch)

MFC after: 1 week

IFH@204581

Support IFCAP_VLANHWTSO in cxgb(4). It works with or without vlanhwtag.
While here, remove old DPRINTFs and tidy up the capability code a bit.