Commit Graph

316 Commits

Author SHA1 Message Date
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
7eeb16cee7 t3_free_sge_resources should be given the number of qsets it needs to free.
MFC after:	1 week
2011-03-24 01:16:48 +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
John Baldwin
3b0a4aef96 Do a sweep of the tree replacing calls to pci_find_extcap() with calls to
pci_find_cap() instead.
2011-03-23 13:10:15 +00:00
Rebecca Cran
6bccea7c2b Fix typos - remove duplicate "the".
PR:	bin/154928
Submitted by:	Eitan Adler <lists at eitanadler.com>
MFC after: 	3 days
2011-02-21 09:01:34 +00:00
Matthew D Fleming
00f0e671ff Explicitly wire the user buffer rather than doing it implicitly in
sbuf_new_for_sysctl(9).  This allows using an sbuf with a SYSCTL_OUT
drain for extremely large amounts of data where the caller knows that
appropriate references are held, and sleeping is not an issue.

Inspired by:	rwatson
2011-01-27 00:34:12 +00:00
Matthew D Fleming
cbc134ad03 Introduce signed and unsigned version of CTLTYPE_QUAD, renaming
existing uses.  Rename sysctl_handle_quad() to sysctl_handle_64().
2011-01-19 23:00:25 +00:00
Matthew D Fleming
f8e4b4ef49 sysctl(8) should use the CTLTYPE to determine the type of data when
reading.  (This was already done for writing to a sysctl).  This
requires all SYSCTL setups to specify a type.  Most of them are now
checked at compile-time.

Remove SYSCTL_*X* sysctl additions as the print being in hex should be
controlled by the -x flag to sysctl(8).

Succested by:	bde
2011-01-19 17:04:07 +00:00
Matthew D Fleming
deceab8792 sysctl(9) cleanup checkpoint: amd64 GENERIC builds cleanly.
Commit the cxgb driver piece.
2011-01-12 19:53:44 +00:00
Alan Cox
82de724fe1 Introduce and use a new VM interface for temporarily pinning pages. This
new interface replaces the combined use of vm_fault_quick() and
pmap_extract_and_hold() throughout the kernel.

In collaboration with:	kib@
2010-12-25 21:26:56 +00:00
Alan Cox
c2f86e4192 The local variable "rv" is still required by vm_fault_hold_user_pages(). 2010-12-20 23:41:31 +00:00
Alan Cox
acd11c7499 Introduce vm_fault_hold() and use it to (1) eliminate a long-standing race
condition in proc_rwmem() and to (2) simplify the implementation of the
cxgb driver's vm_fault_hold_user_pages().  Specifically, in proc_rwmem()
the requested read or write could fail because the targeted page could be
reclaimed between the calls to vm_fault() and vm_page_hold().

In collaboration with:	kib@
MFC after:	6 weeks
2010-12-20 22:49:31 +00:00
Alan Cox
8c22654d7e Implement and use a single optimized function for unholding a set of pages.
Reviewed by:	kib@
2010-12-17 22:41:22 +00:00
Andriy Gapon
5579e006db fix incorrect use of atomic_set_xxx in cxgb
There is no need to use an atomic operation at structure initialization
time.
Note that the file changed is not connected to the build at this time.

Reviewed by:	jhb (general issue)
Approved by:	np
MFC after:	2 weeks
2010-12-11 10:14:08 +00:00
Matthew D Fleming
4e6571599b Re-add r212370 now that the LOR in powerpc64 has been resolved:
Add a drain function for struct sysctl_req, and use it for a variety
of handlers, some of which had to do awkward things to get a large
enough SBUF_FIXEDLEN buffer.

Note that some sysctl handlers were explicitly outputting a trailing
NUL byte.  This behaviour was preserved, though it should not be
necessary.

Reviewed by:    phk (original patch)
2010-09-16 16:13:12 +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
Matthew D Fleming
404a593e28 Revert r212370, as it causes a LOR on powerpc. powerpc does a few
unexpected things in copyout(9) and so wiring the user buffer is not
sufficient to perform a copyout(9) while holding a random mutex.

Requested by: nwhitehorn
2010-09-13 18:48:23 +00:00
Matthew D Fleming
dd67e2103c Add a drain function for struct sysctl_req, and use it for a variety of
handlers, some of which had to do awkward things to get a large enough
FIXEDLEN buffer.

Note that some sysctl handlers were explicitly outputting a trailing NUL
byte.  This behaviour was preserved, though it should not be necessary.

Reviewed by:	phk
2010-09-09 18:33:46 +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
61cb6c9076 wakeup is required if the adapter lock is released anywhere during
init and not just for the may_sleep case.

Pointed out by:	Isilon
MFC after:	3 days
2010-08-15 20:34:51 +00:00
John Baldwin
b739a509f2 - Change the warning about PCI-e links narrower than x8 to only apply to
10G cards.  1G cards are x4 only.
- Use constants from pcireg.h for reading the current link width.
- Use pci_set_max_read_req() rather than implementing it by hand.

Reviewed by:	np
MFC after:	1 week
2010-07-26 17:31:15 +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
29c54b85f9 Fix bufsize calculation so that cxgbtool can display information for the
last I/O queue too.

MFC after:	3 days
2010-07-09 00:35:09 +00:00
Alan Cox
69a990a144 Catch up with the page and page queues locking changes. 2010-06-18 23:14:16 +00:00
Navdeep Parhar
27d1c65e8e cxgb(4): add knob to get packet timestamps from the hardware.
The T3 ASIC can provide an incoming packet's timestamp instead of its RSS hash.
The timestamp is just a counter running off the card's clock.  With a 175MHz
clock an increment represents ~5.7ns and the 32 bit value wraps around in ~25s.

# sysctl -d dev.cxgbc.0.pkt_timestamp
dev.cxgbc.0.pkt_timestamp: provide packet timestamp instead of connection hash

# sysctl -d dev.cxgbc.0.core_clock
dev.cxgbc.0.core_clock: core clock frequency (in KHz)
# sysctl dev.cxgbc.0.core_clock
dev.cxgbc.0.core_clock: 175000
2010-06-12 22:33:04 +00:00
Navdeep Parhar
06eace6376 make format string a string literal.
Reported by:	clang
2010-06-12 22:24:39 +00:00
Navdeep Parhar
3a2c6562f3 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).
2010-06-07 08:23:16 +00:00
Navdeep Parhar
cb958aba98 Remove invalid assertion.
Holding the adapter lock while changing the LRO settings is sufficient.

PR:		kern/146759
MFC after:	3 days
2010-05-20 18:22:45 +00:00
Navdeep Parhar
1d4942f42f Don't ring the tx doorbell for every frame when we know more frames
will follow.  Adjust the freelist and response queue doorbells too.

Discussed with:	kmacy
2010-05-05 22:52:06 +00:00
Navdeep Parhar
b85998cb48 Do not hold the T3 firmware in memory all the time. firmware(9) can
load/unload it as needed.
2010-05-05 22:29:54 +00:00
Joel Dahl
8e0ad55abb Switch to our preferred 2-clause BSD license.
Approved by:	kmacy
2010-05-05 20:39:02 +00:00
Navdeep Parhar
d6da836201 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
2010-05-05 00:41:40 +00:00
Navdeep Parhar
2caefebb07 Add IFCAP_LINKSTATE to cxgb's capabilities.
MFC after:	3 days
2010-05-04 23:55:08 +00:00
Maxim Sobolev
e50d35e6c6 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
2010-05-03 07:32:50 +00:00
Navdeep Parhar
489ca05be7 Increase response queue size to avoid starvation, add a counter
to track it when it does occur.
2010-04-02 17:50:52 +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
d228596091 Fix signed/unsigned mix-up that allowed txq->in_use to grow beyond txq->size. 2010-03-31 00:26:35 +00:00
Navdeep Parhar
92f61ecb4b Fix tx drop statistics.
MFC after:	3 days
2010-03-31 00:26:02 +00:00
Navdeep Parhar
63122c7e1d Fix build with "nooptions INET"
Requested by:	bz
MFC after:	3 days
2010-03-31 00:24:44 +00:00
Navdeep Parhar
1d609d51f0 Do not attempt to retrieve interrupt information before it is available.
MFC after:	3 days
2010-03-31 00:22:58 +00:00
Navdeep Parhar
83179d3907 Improved PHY EDC settings.
MFC after:	3 days
2010-03-31 00:21:56 +00:00
Navdeep Parhar
a9da6d239c Refresh the firmware version immediately after it is upgraded (or downgraded).
MFC after:	3 days
2010-03-31 00:19:39 +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
f9c6e16451 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.
2010-02-26 07:08:44 +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
be688bde90 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.
2010-02-24 01:44:39 +00:00
Ulrich Spörlein
8fa03d08ca Fix common misspelling of hierarchy
Pointed out by:		bf1783 at gmail
Approved by:		np (cxgb), kientzle (tar, etc.), philip (mentor)
2010-02-20 10:19:19 +00:00
Max Laier
193cbc4d24 Fix drbr and altq interaction:
- introduce drbr_needs_enqueue that returns whether the interface/br needs
   an enqueue operation: returns true if altq is enabled or there are
   already packets in the ring (as we need to maintain packet order)
 - update all drbr consumers
 - fix drbr_flush
 - avoid using the driver queue (IFQ_DRV_*) in the altq case as the
   multiqueue consumer does not provide enough protection, serialize altq
   interaction with the main queue lock
 - make drbr_dequeue_cond work with altq

Discussed with:		kmacy, yongari, jfv
MFC after:		4 weeks
2010-02-13 16:04:58 +00:00