sys: Remove $FreeBSD$: one-line bare tag

Remove /^\s*\$FreeBSD\$$\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Merge from head

- MFC

Greatly simplify cxgb by removing almost all of the custom mbuf management logic

- remove mbuf iovec - useful, but adds too much complexity when isolated to
the driver

- remove driver private ca

Greatly simplify cxgb by removing almost all of the custom mbuf management logic

- remove mbuf iovec - useful, but adds too much complexity when isolated to
the driver

- remove driver private caching - insufficient benefit over UMA to justify
the added complexity and maintenance overhead

- remove separate logic for managing multiple transmit queues, with the
new drbr routines the control flow can be made to much more closely resemble
legacy drivers

- remove dedicated service threads, with per-cpu callouts one can get the same
benefit much more simply by registering a callout 1 tick in the future if there
are still buffered packets

- remove embedded mbuf usage - Jeffr's changes will (I hope) soon be integrated
greatly reducing the overhead of using kernel APIs for reference counting
clusters

- add hysteresis to descriptor coalescing logic

- add coalesce threshold sysctls to allow users to decide at run-time
between optimizing for forwarding / UDP or optimizing for TCP

- add once per second watchdog to effectively close the very rare races
occurring from coalescing

- incorporate Navdeep's changes to the initialization path required to
convert port and adapter locks back to ordinary mutexes (silencing BPF
LOR complaints)

- enable prefetches in get_packet and tx cleaning

Reviewed by: navdeep@
MFC after: 2 weeks

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Update the projects tree to a newer FreeBSD current.

Update the Chelsio driver to the latest bits from Chelsio

Firmware upgraded to 7.1.0 (from 5.0.0).
T3C EEPROM and SRAM added; Code to update eeprom/sram fixed.
fl_empty and rx_fifo_ovfl counters can

Update the Chelsio driver to the latest bits from Chelsio

Firmware upgraded to 7.1.0 (from 5.0.0).
T3C EEPROM and SRAM added; Code to update eeprom/sram fixed.
fl_empty and rx_fifo_ovfl counters can be observed via sysctl.
Two new cxgbtool commands to get uP logic analyzer info and uP IOQs
Synced up with Chelsio's "common code" (as of 03/03/09)

Submitted by: Navdeep Parhar at Chelsio
Reviewed by: gnn
MFC after: 2 weeks

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Vendor fix for PHY problem.

Obtained from: Chelsio Inc.
MFC after: 3 days

import vendor fixes to cxgb

- update firmware to 5.0
- add support for T3C
- add DDP support (zero-copy receive)
- fix TOE transmit of large requests
- fix shutdown so that sockets don't remain in CLOSING state indefinitely
- r

- update firmware to 5.0
- add support for T3C
- add DDP support (zero-copy receive)
- fix TOE transmit of large requests
- fix shutdown so that sockets don't remain in CLOSING state indefinitely
- register listeners when an interface is brought up after tom is loaded
- fix setting of multicast filter
- enable link at device attach
- exit tick handler if shutdown is in progress
- add helper for logging TCB
- add sysctls for dumping transmit queues

- note that TOE wxill not be MFC'd until after 7.0 has been finalized

MFC after: 3 days

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- make 9k clusters the default unless a tunable is set
- return the error from cxgb_tx_common so that when an error is hit we dont
spin forever in the taskq thread
- remove unused rxsd_ref
- simpli

- make 9k clusters the default unless a tunable is set
- return the error from cxgb_tx_common so that when an error is hit we dont
spin forever in the taskq thread
- remove unused rxsd_ref
- simplify header_offset calculation for embedded mbuf headers
- fix memory leak by making sure that mbuf header initialization took place
- disable printf's for stalled queue, don't do offload/ctrl queue restart
when tunnel queue is restarted
- add more diagnostic information about the txq state
- add facility to dump the actual contents of the hardware queue using sysctl

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Make TCP offload work on HEAD (modulo negative interaction between sbcompress
and t3_push_frames).
- Import latest changes to cxgb_main.c and cxgb_sge.c from toestack p4 branch
- make driver local

Make TCP offload work on HEAD (modulo negative interaction between sbcompress
and t3_push_frames).
- Import latest changes to cxgb_main.c and cxgb_sge.c from toestack p4 branch
- make driver local copy of tcp_subr.c and tcp_usrreq.c and override tcp_usrreqs so
TOE can also functions on versions with unmodified TCP

- add cxgb back to the build

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- integrate most recent changes from vendor branch and upgrade to firmware revision 4.5.5
- add filter support
- further improvements for T304
- recover gracefully from spurious immediate packets

- integrate most recent changes from vendor branch and upgrade to firmware revision 4.5.5
- add filter support
- further improvements for T304
- recover gracefully from spurious immediate packets

Approved by: re(blanket)
Supported by: Chelsio
MFC after: 3 days

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When building cxgb as a module make include paths relative to the driver's root.
This will make it possible to build the module out of tree against an older src tree.

MFC after: 3 days

(MFp4)
- upgrade to reflect state of 1.0.0.86
- move from firmware rev 3.2 to 4.0.0
- import driver bits for offload functionality
- remove binary distribution clause from to

(MFp4)
- upgrade to reflect state of 1.0.0.86
- move from firmware rev 3.2 to 4.0.0
- import driver bits for offload functionality
- remove binary distribution clause from top level files as it
runs counter to the intent of purely supporting the hardware

MFC after: 3 days

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First of several commits for driver support for the Chelsio T3B 10 Gigabit
Ethernet adapter.

Reviewed by: scottl, sam

For those interested in the preliminary performance work see below.

Plots of m

First of several commits for driver support for the Chelsio T3B 10 Gigabit
Ethernet adapter.

Reviewed by: scottl, sam

For those interested in the preliminary performance work see below.

Plots of mxge vs. cxgb running netpipe:

blocksize vs. bandwidth:
http://www.fsmware.com/chelsio.random/bsvsbw.gif

blocksize vs. RTT:
First of several commits for driver support for the Chelsio T3B 10 Gigabit
Ethernet adapter.

Reviewed by: scottl, sam

For those interested in the preliminary performance work see below.

Plots of mxge vs. cxgb running netpipe:

blocksize vs. bandwidth:
http://www.fsmware.com/chelsio.random/bsvsbw.gif

blocksize vs. RTT:
http://www.fsmware.com/chelsio.random/bsvstime.gif

blocksize vs. RTT for block sizes <= 10kb:
http://www.fsmware.com/chelsio.random/bsvstime_10kb.gif
http://www.fsmware.com/chelsio.random/bsvstime_10kb3.gif

show more ...

- MFC

Greatly simplify cxgb by removing almost all of the custom mbuf management logic

- remove mbuf iovec - useful, but adds too much complexity when isolated to
the driver

- remove driver private ca

Greatly simplify cxgb by removing almost all of the custom mbuf management logic

- remove mbuf iovec - useful, but adds too much complexity when isolated to
the driver

- remove driver private caching - insufficient benefit over UMA to justify
the added complexity and maintenance overhead

- remove separate logic for managing multiple transmit queues, with the
new drbr routines the control flow can be made to much more closely resemble
legacy drivers

- remove dedicated service threads, with per-cpu callouts one can get the same
benefit much more simply by registering a callout 1 tick in the future if there
are still buffered packets

- remove embedded mbuf usage - Jeffr's changes will (I hope) soon be integrated
greatly reducing the overhead of using kernel APIs for reference counting
clusters

- add hysteresis to descriptor coalescing logic

- add coalesce threshold sysctls to allow users to decide at run-time
between optimizing for forwarding / UDP or optimizing for TCP

- add once per second watchdog to effectively close the very rare races
occurring from coalescing

- incorporate Navdeep's changes to the initialization path required to
convert port and adapter locks back to ordinary mutexes (silencing BPF
LOR complaints)

- enable prefetches in get_packet and tx cleaning

Reviewed by: navdeep@
MFC after: 2 weeks

show more ...

Update the projects tree to a newer FreeBSD current.

Update the Chelsio driver to the latest bits from Chelsio

Firmware upgraded to 7.1.0 (from 5.0.0).
T3C EEPROM and SRAM added; Code to update eeprom/sram fixed.
fl_empty and rx_fifo_ovfl counters can

Update the Chelsio driver to the latest bits from Chelsio

Firmware upgraded to 7.1.0 (from 5.0.0).
T3C EEPROM and SRAM added; Code to update eeprom/sram fixed.
fl_empty and rx_fifo_ovfl counters can be observed via sysctl.
Two new cxgbtool commands to get uP logic analyzer info and uP IOQs
Synced up with Chelsio's "common code" (as of 03/03/09)

Submitted by: Navdeep Parhar at Chelsio
Reviewed by: gnn
MFC after: 2 weeks

show more ...

Vendor fix for PHY problem.

Obtained from: Chelsio Inc.
MFC after: 3 days

import vendor fixes to cxgb

- update firmware to 5.0
- add support for T3C
- add DDP support (zero-copy receive)
- fix TOE transmit of large requests
- fix shutdown so that sockets don't remain in CLOSING state indefinitely
- r

- update firmware to 5.0
- add support for T3C
- add DDP support (zero-copy receive)
- fix TOE transmit of large requests
- fix shutdown so that sockets don't remain in CLOSING state indefinitely
- register listeners when an interface is brought up after tom is loaded
- fix setting of multicast filter
- enable link at device attach
- exit tick handler if shutdown is in progress
- add helper for logging TCB
- add sysctls for dumping transmit queues

- note that TOE wxill not be MFC'd until after 7.0 has been finalized

MFC after: 3 days

show more ...

- make 9k clusters the default unless a tunable is set
- return the error from cxgb_tx_common so that when an error is hit we dont
spin forever in the taskq thread
- remove unused rxsd_ref
- simpli

- make 9k clusters the default unless a tunable is set
- return the error from cxgb_tx_common so that when an error is hit we dont
spin forever in the taskq thread
- remove unused rxsd_ref
- simplify header_offset calculation for embedded mbuf headers
- fix memory leak by making sure that mbuf header initialization took place
- disable printf's for stalled queue, don't do offload/ctrl queue restart
when tunnel queue is restarted
- add more diagnostic information about the txq state
- add facility to dump the actual contents of the hardware queue using sysctl

show more ...