and keepalive in the sysctl MIB. Provide tunables to change some of
these parameters. These are supposed to be setup by the firmware so
these tunables are for experimentation only.
MFC after: 2 weeks
Sponsored by: Chelsio Communications
doesn't seem to have one. This lets the driver recover automatically
from incomplete firmware upgrades (panic, reboot, power loss, etc. in
the middle of an upgrade).
MFC after: 2 weeks
Sponsored by: Chelsio Communications
- Deal with changes to port_type, and not just port_mod when a
transceiver is changed. This fixes hot swapping of transceivers of
different types (QSFP+ or QSA or QSFP28 in a QSFP28 port, SFP+ or
SFP28 in a SFP28 port, etc.).
- Always refresh media information for ifconfig if the port is down.
The firmware does not generate tranceiver-change interrupts unless at
least one VI is enabled on the physical port. Before this change
ifconfig diplayed potentially stale information for ports that were
administratively down.
- Always recalculate and reapply L1 config on a transceiver change.
- Display PAUSE settings in ifconfig. The driver sysctls for this
continue to work as well.
MFC after: 2 weeks
Sponsored by: Chelsio Communications
the "effective MSS" for the connection. The chip expects it this way.
Submitted by: Krishnamraju Eraparaju @ Chelsio
MFC after: 3 days
Sponsored by: Chelsio Communications
Do not attempt to initialize netmap queues that are already initialized
or aren't supposed to be initialized. Similarly, do not free queues
that are not initialized or aren't supposed to be freed.
PR: 217156
Sponsored by: Chelsio Communications
- For HMAC requests, construct a special input buffer to request an empty
hash result.
- For plain cipher requests and requests that chain an AES cipher with an
HMAC, fail with EINVAL if there is no cipher payload. If needed in
the future, chained requests that only contain AAD could be serviced as
HMAC-only requests.
- For GCM requests, the hardware does not support generating the tag for
an AAD-only request. Instead, complete these requests synchronously
in software on the assumption that such requests are rare.
Sponsored by: Chelsio Communications
The adapter firmware in general does not accept PDUs larger than 64k - 1
bytes in size. Sending crypto requests larger than this size result in
hangs or incorrect output, so reject them with EFBIG. For requests
chaining an AES cipher with an HMAC, the firmware appears to require
slightly smaller requests (around 512 bytes).
Sponsored by: Chelsio Communications
The latest firmware has a number of link related fixes, support for a
new custom card, and the fix for a bug that affected rate limiting on
FreeBSD.
Obtained from: Chelsio Communications
MFC after: 1 week
Sponsored by: Chelsio Communications
The ccr(4) driver supports use of the crypto accelerator engine on
Chelsio T6 NICs in "lookaside" mode via the opencrypto framework.
Currently, the driver supports AES-CBC, AES-CTR, AES-GCM, and AES-XTS
cipher algorithms as well as the SHA1-HMAC, SHA2-256-HMAC, SHA2-384-HMAC,
and SHA2-512-HMAC authentication algorithms. The driver also supports
chaining one of AES-CBC, AES-CTR, or AES-XTS with an authentication
algorithm for encrypt-then-authenticate operations.
Note that this driver is still under active development and testing and
may not yet be ready for production use. It does pass the tests in
tests/sys/opencrypto with the exception that the AES-GCM implementation
in the driver does not yet support requests with a zero byte payload.
To use this driver currently, the "uwire" configuration must be used
along with explicitly enabling support for lookaside crypto capabilities
in the cxgbe(4) driver. These can be done by setting the following
tunables before loading the cxgbe(4) driver:
hw.cxgbe.config_file=uwire
hw.cxgbe.cryptocaps_allowed=-1
MFC after: 1 month
Relnotes: yes
Sponsored by: Chelsio Communications
Differential Revision: https://reviews.freebsd.org/D10763
Invoke any identify routines of child drivers during attach before attaching
children, and delete any remaining devices after deleting ports.
MFC after: 1 month
Sponsored by: Chelsio Communications
- Do not leak the adapter lock in sysctl_autoneg.
- Accept only 0 or 1 as valid settings for autonegotiation.
- A fixed speed must be requested by the driver when autonegotiation is
disabled otherwise the firmware will reject the l1cfg command. Use
the top speed supported by the port for now.
MFC after: 3 days
Sponsored by: Chelsio Communications
the TOE. For now this capability is always enabled in kernels with
options RATELIMIT. t4_tom will check if_capenable once the base driver
gets code to support rate limiting for any socket (TOE or not).
This was tested with iperf3 and netperf ToT as they already support
SO_MAX_PACING_RATE sockopt. There is a bug in firmwares prior to
1.16.45.0 that affects the BSD driver only and results in rate-limiting
at an incorrect rate. This will resolve by itself as soon as 1.16.45.0
or later firmware shows up in the driver.
Relnotes: Yes
Sponsored by: Chelsio Communications
- Create a new file, t4_sched.c, and move all of the code related to
traffic management from t4_main.c and t4_sge.c to this file.
- Track both Channel Rate Limiter (ch_rl) and Class Rate Limiter (cl_rl)
parameters in the PF driver.
- Initialize all the cl_rl limiters with somewhat arbitrary default
rates and provide routines to update them on the fly.
- Provide routines to reserve and release traffic classes.
MFC after: 1 month
Sponsored by: Chelsio Communications
available starting with T6. The values in the timer holdoff registers
are multiplied by the scaling factor before use.
dev.<nexus>.<n>.holdoff_timers shows the final values of the
timers in microseconds.
MFC after: 1 week
Sponsored by: Chelsio Communications
(and accurate).
T4 and later have an extra bit for page shift so the maximum page size
is 8TB (shift of 12 + 31) instead of 128MB (12 + 15). This saves space
in the chip's PBL (physical buffer list) when registering very large
memory regions.
MFC after: 3 days
Sponsored by: Chelsio Communications
the thread that deals with socket state changes. This eliminates
various bad races with the ithread.
Submitted by: KrishnamRaju ErapaRaju @ Chelsio (original version)
MFC after: 3 days
Sponsored by: Chelsio Communications
