Commit Graph

52 Commits

Author SHA1 Message Date
Pedro F. Giffuni
453130d9bf sys/dev: minor spelling fixes.
Most affect comments, very few have user-visible effects.
2016-05-03 03:41:25 +00:00
Navdeep Parhar
a5eb009b49 cxgb: replace r273280 with a more comprehensive fix.
Poll for link state when the link is down, even for interrupt capable
PHYs.

Allow PHYs to report a dubious "partial" link.  If this state is seen 3
consecutive times (each check is ~1s apart) then reset the PHY.  This is
a workaround for a situation where repeatedly toggling the link from the
peer gets the AEL2005 PHY into a state where it never establishes a PCS
block lock even when everything is in order.

MFC after:	1 week
2015-01-11 07:51:58 +00:00
Navdeep Parhar
bb1800f1fa cxgb(4): reset the PHY if it generates an interrupt for no apparent reason.
MFC after:	1 week
2014-10-19 17:29:44 +00:00
Dimitry Andric
24f55f3f5e In sys/dev/cxgb/common/cxgb_mc5.c, remove static function
dbgi_wr_addr3(), which is unused since r167514.

MFC after:	3 days
2013-12-25 22:45:33 +00:00
Gabor Kovesdan
ab3f6b347e - Correct mispellings of the word occurrence
Submitted by:	Christoph Mallon <christoph.mallon@gmx.de> (via private mail)
2013-04-17 11:40:10 +00:00
Navdeep Parhar
09fe63205c - Updated TOE support in the kernel.
- Stateful TCP offload drivers for Terminator 3 and 4 (T3 and T4) ASICs.
  These are available as t3_tom and t4_tom modules that augment cxgb(4)
  and cxgbe(4) respectively.  The cxgb/cxgbe drivers continue to work as
  usual with or without these extra features.

- iWARP driver for Terminator 3 ASIC (kernel verbs).  T4 iWARP in the
  works and will follow soon.

Build-tested with make universe.

30s overview
============
What interfaces support TCP offload?  Look for TOE4 and/or TOE6 in the
capabilities of an interface:
# ifconfig -m | grep TOE

Enable/disable TCP offload on an interface (just like any other ifnet
capability):
# ifconfig cxgbe0 toe
# ifconfig cxgbe0 -toe

Which connections are offloaded?  Look for toe4 and/or toe6 in the
output of netstat and sockstat:
# netstat -np tcp | grep toe
# sockstat -46c | grep toe

Reviewed by:	bz, gnn
Sponsored by:	Chelsio communications.
MFC after:	~3 months (after 9.1, and after ensuring MFC is feasible)
2012-06-19 07:34:13 +00:00
Navdeep Parhar
e050eaa32a Fix return value of function.
Submitted by:	Dan McGregor <dan dot mcgregor at usask dot ca>
2011-12-23 01:39:10 +00:00
Navdeep Parhar
2b3da0fd11 Update T3 firmware to 7.11.0
Changes since 7.8.0 (from the official changelog):

- Fixed sporadic interrupt generation for associated CQ when processing
  a local invalidate work request
- Changes to core scheduling to avoid starving requests from the host
  under heavy RDMA Read Request load (e.g. packets to the wire)

- Programmed the tp tx resource limiter in function of the traffic (only
  affects iWarp)

- Increased the egress NIC gather list length from 36 to 46 entries

MFC after:	1 week
2011-03-25 20:53:02 +00:00
Navdeep Parhar
2b3b9558ef T3C initialization should setup the parity fence too.
MFC after:	1 week
2011-03-24 01:13:28 +00:00
Navdeep Parhar
225f5b4adc Fix t3_gate_rx_traffic and t3_open_rx_traffic. Parts of them always operated
on XGMAC0 instead of the specified XGMAC.

MFC after:	3 days
2010-09-15 21:50:37 +00:00
Navdeep Parhar
21d68a68bf Fix tx pause quanta and timer calculations.
MFC after:	3 days
2010-08-15 20:52:15 +00:00
Navdeep Parhar
3dd6d7570f Always reset the XGMAC's XAUI PCS on a link up.
MFC after:	3 days
2010-08-15 20:45:16 +00:00
Navdeep Parhar
bd1a9fbad6 Improve cxgb(4)'s behaviour when faced with temporarily "bouncy" links:
- Run the adapter's tick at 1Hz and remove link state checks from it.
  Instead, have each port check its link state.  Delay the check so that
  it takes place slightly after the driver is notified of a change in
  link state.  This is a cheap way to debounce these notifications if
  many are received in rapid succession.  POLL_LINK_1ST_TIME flag can
  also be eliminated as a side effect of these changes.
- Do not reset the PHY when link goes down.
- Clear port's link_fault flag if the PHY indicates link is down.
- get_link_status_r should leave speed and duplex alone when link is down.

MFC after:	1 month
2010-07-09 00:38:00 +00:00
Navdeep Parhar
2c32b50248 Eliminate ext_intr_task. The "slow" interrupt handler is already
running on the adapter's task queue.  Just do what the task does
instead of enqueueing it.

MFC after:	3 days
2010-07-09 00:36:35 +00:00
Navdeep Parhar
97ae3bc359 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
2010-03-31 00:27:49 +00:00
Navdeep Parhar
83179d3907 Improved PHY EDC settings.
MFC after:	3 days
2010-03-31 00:21:56 +00:00
Navdeep Parhar
cd5c70b2ba 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
2010-03-09 19:57:44 +00:00
Navdeep Parhar
e83ec3e5c3 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.

MFC after:	1 week
2010-02-24 10:16:18 +00:00
Navdeep Parhar
b6783ad018 Extra parantheses to keep certain compilers happy.
Submitted by:	trasz@
2010-01-09 18:07:10 +00:00
Navdeep Parhar
5fbe7b2589 T3 firmware 7.8.0 for cxgb(4)
Obtained from:	Chelsio
MFC after:	3 days
2009-12-01 22:23:15 +00:00
Navdeep Parhar
3cb33003ce The 10GBASE-T card should use an IPG of 1. Also enable the check
for low power startup on this card.
2009-11-13 00:34:28 +00:00
Navdeep Parhar
1fa10c920e Make sure *some* edc is setup even for an unknown transceiver (assume
it is optical).
2009-11-13 00:31:51 +00:00
Navdeep Parhar
c01f2b8301 cxgb(4) updates, including:
- support for the new Gen-2, BT, and LP-CR cards.
- T3 firmware 7.7.0
- shared "common code" updates.

Approved by:	gnn (mentor)
Obtained from:	Chelsio
MFC after:	1 month
2009-10-05 20:21:41 +00:00
Kip Macy
3f345a5d09 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
2009-06-19 23:34:32 +00:00
George V. Neville-Neil
0bbdea7776 Integrate three changes from Chelsio.
1) Add a sysctl that will say what type of PHYs exist on the card.
2) Fix a bug that occurs when an AEL 2005 PHY resets without a transciever
in the card.
3) Unify the PHY link detection code.

Obtained from:	Navdeep Parhar
MFC after:	10 days
2009-05-21 15:08:03 +00:00
George V. Neville-Neil
f2d8ff04fe 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
2009-03-10 19:22:45 +00:00
George V. Neville-Neil
837f41b067 Check in the actual module recognition code for the Chelsio
driver.

Obtained from:	Chelsio Inc.
2008-12-18 14:21:35 +00:00
George V. Neville-Neil
7f15419bb7 Bug fix to support N310 version of Chelsio cards (board ID 1088).
Obtained from:	Chelsio Inc.
MFC after:	3 days
2008-12-06 02:10:53 +00:00
George V. Neville-Neil
9036240993 Fix a bug with the ael1006 PHY. The bug shows up as persistent but incomplete
packet loss, of between 10-30%. The fix is to put the PHY into
and take it out of local loopback mode when resetting the interface.

Obtained from:	Chelsio Inc.
MFC after:	3 days
2008-12-04 20:32:53 +00:00
George V. Neville-Neil
c9c0c99f30 Bug fix from Chelsio which addresses the issue of the device resetting
when it sees only received packets.  In some cases where a device only
recieves data it mistakenly thinks that its transmitting side is broken
and resets the device.

Obtained from:	Chelsio Inc.
MFC after:	3 days
2008-12-02 15:42:47 +00:00
George V. Neville-Neil
2a1b9f07fc Several small additions to the Chelsio 10G driver.
1) Fix a bug in dealing with the Alerus 1006 PHY which prevented the
device from ever coming back up once it had been set to down.

2) Add a kernel tunable (hw.cxgb.snd_queue_len) which makes it possible
to give the device more than IFQ_MAXLEN entries in its send queue.  The
default remains 50.

3) Add code to place the card'd identification and serial number into
its description (%desc) so that users can tell which card they have
installed.
2008-11-21 19:22:25 +00:00
Kip Macy
d1340303b9 Update firmware version check
make ddp a tunable

Obtained from:	Chelsio Inc.
MFC after:	3 days
2008-11-12 04:45:09 +00:00
Kip Macy
79775f8f1b Update cxgb include paths to not require prefixing with dev/cxgb
Submitted by:	Chelsio Inc.
2008-09-23 03:16:54 +00:00
Kip Macy
aa819acf89 White space cleanups to bring closer to RELENG_7 2008-09-16 02:03:28 +00:00
Kip Macy
9b4de886f9 Vendor fix for PHY problem.
Obtained from:	Chelsio Inc.
MFC after:	3 days
2008-08-11 23:01:34 +00:00
Kip Macy
38ddd4d3ed new vendor PHY support 2008-07-18 07:01:51 +00:00
Kip Macy
4af83c8cff import vendor fixes to cxgb 2008-07-18 06:12:31 +00:00
Kip Macy
19905d6dbd - Integrate 1.133 vendor driver changes
- update some copyrights
- add improved support for delayed ack
- fix issue with fec
2008-03-18 03:55:12 +00:00
Kip Macy
8e10660f12 - 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
2008-02-23 01:06:17 +00:00
Kip Macy
f001b63dcb - 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
2008-01-10 00:55:42 +00:00
Kip Macy
8090c9f504 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
2007-12-17 08:17:51 +00:00
Kip Macy
a8d57f7f24 Fix last-minute typo in last commit caused by pre-commit scripts
Approved by: re(blanket)
2007-09-09 03:51:25 +00:00
Kip Macy
5c5df3da16 - fix qset to port binding as a proper fix for the problems encountered on the 4-port
- fix the use after free seen when sending packets small enough to fit as an immediate
   and bpf peers are present
 - update to firmware rev 4.7 along with various small vendor fixes

Supported by: Chelsio
Approved by: re (blanket)
MFC after: 3 days
2007-09-09 01:28:03 +00:00
Kip Macy
7ac2e6c362 Fixes for 4 port and small packet optimization
- remove cpl->iff panic - we can't know the port number from the rspq on the 4-port
- pick the ifnet based on the interface in the CPL header
- switch to using qset 0 for egress on the 4-port for now - may change
  when we start using RSS
- move ether_ifdetach to before the port lock gets deinitialized to avoid
  hang in the case where there are BPF peers (cxgb_ioctl is called indirectly
  when BPF peers are present)
- don't call t3_mac_reset if multiport is set, this was causing tx errors
  by misconfiguring the MAC on the 4-port
- change V_TXPKT_INTF to use txpkt_intf as the interfaces are not contiguous
- free the mbuf immediately in the case where the payload is small enough to be copied
  into the rspq
- only update the coalesce timer if for a queue if packets were taken off of it
- add in missed 20ms DELAY in initializaton vsc8211

- prompt MFC as this only applies to the 4-port which is currently completely
  broken - OK'd by kensmith

Supported by: Chelsio
Approved by: re (blanket)
MFC after: 0 days
2007-08-25 21:07:37 +00:00
Kip Macy
7aff6d8ed3 forward port signedness fixes from RELENG_6
fix compile error for case where MSI_SUPPORTED not defined

Approved by: re (blanket)
2007-08-17 05:57:04 +00:00
Kip Macy
ac3a6d9cef - 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
2007-07-17 06:50:35 +00:00
Kip Macy
ef72318f0e - import new common code for the T304
- update to firmware version 4.1.0

- switch over to standard method for initializing cdevs (contributed by scottl@)
- break out timer_reclaim_task to be per-port
- move msix teardown into separate function
- fix bus_setup_intr for msi-x for the multi-port case so that msi-x resources
  are not corrupted on unload
- handle 10/100/1000 base-T media and auto negotiation
- bind qset to cpu even for singleq case
- white space cleanups
- remove recursive PORT_LOCK
- move mtu setting to separate function
- stop and re-init port when changing mtu
- replace all direct references to m_data with calls to mtod
- handle attach failure better by not trying to de-initialize
  taskqueues when they have not been allocated
- no longer default to jumbo frames

Sponsored by: Chelsio
MFC after: 3 days
2007-06-13 05:36:00 +00:00
Kip Macy
10faa56870 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
2007-05-28 22:57:27 +00:00
Kip Macy
d1b41c9b16 add missed header 2007-05-25 18:29:17 +00:00
Kip Macy
d722cab49a (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
2007-05-25 09:48:20 +00:00