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Commit Graph

191 Commits

Author SHA1 Message Date
Gleb Smirnoff
c3322cb91c Include necessary headers that now are available due to pollution
via if_var.h.

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-28 07:29:16 +00:00
Gleb Smirnoff
76039bc84f The r48589 promised to remove implicit inclusion of if_var.h soon. Prepare
to this event, adding if_var.h to files that do need it. Also, include
all includes that now are included due to implicit pollution via if_var.h

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
2013-10-26 17:58:36 +00:00
Navdeep Parhar
87f804e879 Fix typo in previous commit. 2013-10-18 00:00:08 +00:00
Navdeep Parhar
02318fcf86 iw_cxgbe should have a dependency on t4nex.
Reported by:	trasz@
2013-10-17 23:57:17 +00:00
Navdeep Parhar
fb93f5c47f iw_cxgbe: iWARP driver for Chelsio T4/T5 chips. This is a straight port
of the iw_cxgb4 found in OFED distributions.

Obtained from:	Chelsio
2013-10-17 18:37:25 +00:00
Navdeep Parhar
b3eda7872d cxgbe(4): Store the log2 of the # of doorbells per BAR2 page for both
ingress and egress queues, and for both T4 and T5.  These values are
used by the T4/T5 iWARP driver.
2013-10-14 23:32:56 +00:00
Navdeep Parhar
48d05478bf cxgbe(4): Update T4 and T5 firmwares to 1.9.12.0 2013-10-14 21:25:07 +00:00
Gleb Smirnoff
4cdc1f5421 There are some high performance NICs that count statistics in hardware,
and there are ifnets, that do that via counter(9). Provide a flag that
would skip cache line trashing '+=' operation in ether_input().

Sponsored by:	Netflix
Sponsored by:	Nginx, Inc.
Reviewed by:	melifaro, adrian
Approved by:	re (marius)
2013-10-09 19:04:40 +00:00
Dimitry Andric
64db896617 Fix kernel build on amd64 after r256118, since the machine/md_var.h
header is not implicitly included there.  So include it explicitly.

Approved by:	re (delphij)
Pointy hat to:	dim
MFC after:	3 days
X-MFC-With:	r256118
2013-10-07 22:30:03 +00:00
Dimitry Andric
42355a4ff6 Remove redundant declaration of cpu_clflush_line_size in
sys/dev/cxgbe/t4_sge.c, to silence a gcc warning.

Approved by:	re (gjb)
MFC after:	3 days
2013-10-07 16:56:56 +00:00
Navdeep Parhar
eb22728291 Rework the tx credit mechanism between the cxgbe/tom driver
and the card.  This helps smooth out some burstiness in the
exchange.

Approved by:	re (glebius)
2013-09-09 04:38:57 +00:00
Navdeep Parhar
c81d56a0aa Fix a miscalculation that caused cxgbe/tom to auto-increment
a TOE socket's tx buffer size too aggressively.

Approved by:	re (delphij)
2013-09-09 00:16:59 +00:00
Navdeep Parhar
4f641559c7 For TOE connections, the window scale factor in CPL_PASS_ACCEPT_REQ is
set to 15 to indicate that the peer did not send a window scale option
with its SYN.  Do not send a window scale option in the SYN|ACK reply
in that case.
2013-09-03 23:34:04 +00:00
Navdeep Parhar
32e9219012 Fix the sysctl that displays whether buffer packing is enabled
or not.
2013-08-30 02:13:36 +00:00
Navdeep Parhar
1458bff9a4 Implement support for rx buffer packing. Enable it by default for T5
cards.

This is a T4 and T5 chip feature which lets the chip deliver multiple
Ethernet frames in a single buffer.  This is more efficient within the
chip, in the driver, and reduces wastage of space in rx buffers.

- Always allocate rx buffers from the jumbop zone, no matter what the
  MTU is.  Do not use the normal cluster refcounting mechanism.
- Reserve space for an mbuf and a refcount in the cluster itself and let
  the chip DMA multiple frames in the rest.
- Use the embedded mbuf for the first frame and allocate mbufs on the
  fly for any additional frames delivered in the cluster.  Each of these
  mbufs has a reference on the underlying cluster.
2013-08-30 01:45:36 +00:00
Navdeep Parhar
480e603c79 Merge r254386 from user/np/cxl_tuning. Add an INET|INET6 check missing
in said revision.

r254386:
Flush inactive LRO entries periodically.
2013-08-29 06:26:22 +00:00
Navdeep Parhar
c93d567412 Whitespace nit. 2013-08-28 23:15:05 +00:00
Navdeep Parhar
319a31ea18 Change t4_list_lock and t4_uld_list_lock from mutexes to sx'es.
- tom_uninit had to be reworked not to hold the adapter lock (a mutex)
  around t4_deactivate_uld, which acquires the uld_list_lock.
- the ifc_match for the interface cloner that creates the tracer ifnet
  had to be reworked as the kernel calls ifc_match with the global
  if_cloners_mtx held.
2013-08-28 20:59:22 +00:00
Navdeep Parhar
9800517691 Add hooks in base cxgbe(4) for the iWARP upper-layer driver. Update a
couple of assertions in the TOE driver as well.
2013-08-28 20:45:45 +00:00
Navdeep Parhar
8a59745fca Use correct mailbox and PCIe PF number when querying RDMA parameters. 2013-08-26 19:02:52 +00:00
Navdeep Parhar
aa9a5cc05a There is no need to hold the freelist lock around alloc/free of
software descriptors.  This also silences WITNESS warnings when
the software descriptors are allocated with M_WAITOK.

MFC after:	1 week
2013-08-23 18:03:18 +00:00
Navdeep Parhar
2485eeee37 Display P/N information in the description.
Submitted by:	gnn
MFC after:	3 days
2013-08-20 18:22:04 +00:00
Navdeep Parhar
82342de26d Display temperature sensor data. Shows -1 if sensor not
available on the card.

# sysctl dev.t4nex.0.temperature
# sysctl dev.t5nex.0.temperature
2013-08-02 18:05:42 +00:00
Navdeep Parhar
73cd922046 Fix previous commit (r253873). "cong" has one bit per channel but the
congestion channel map has 1 nibble per channel.  So bits wxyz need to
be blown up into 000w000x000y000z.
2013-08-02 17:44:19 +00:00
Navdeep Parhar
ba41ec4848 Set up congestion manager context properly for T5 based cards.
MFC after:	3 days (will check with re@)
2013-08-01 23:38:30 +00:00
Navdeep Parhar
6e22f9f3da Display SGE tunables in the sysctl tree.
dev.t5nex.0.fl_pktshift: payload DMA offset in rx buffer (bytes)
dev.t5nex.0.fl_pad: payload pad boundary (bytes)
dev.t5nex.0.spg_len: status page size (bytes)
dev.t5nex.0.cong_drop: congestion drop setting

Discussed with:	scottl
2013-07-31 05:12:51 +00:00
Navdeep Parhar
2393220538 Display a string instead of a numeric code in the linkdnrc sysctl.
Submitted by:	gnn@
2013-07-27 07:43:43 +00:00
Navdeep Parhar
716c9e1b58 Expand the list of devices claimed by cxgbe(4). 2013-07-27 00:53:07 +00:00
Navdeep Parhar
caf20efcde Add support for packet-sniffing tracers to cxgbe(4). This works with
all T4 and T5 based cards and is useful for analyzing TSO, LRO, TOE, and
for general purpose monitoring without tapping any cxgbe or cxl ifnet
directly.

Tracers on the T4/T5 chips provide access to Ethernet frames exactly as
they were received from or transmitted on the wire.  On transmit, a
tracer will capture a frame after TSO segmentation, hw VLAN tag
insertion, hw L3 & L4 checksum insertion, etc.  It will also capture
frames generated by the TCP offload engine (TOE traffic is normally
invisible to the kernel).  On receive, a tracer will capture a frame
before hw VLAN extraction, runt filtering, other badness filtering,
before the steering/drop/L2-rewrite filters or the TOE have had a go at
it, and of course before sw LRO in the driver.

There are 4 tracers on a chip.  A tracer can trace only in one direction
(tx or rx).  For now cxgbetool will set up tracers to capture the first
128B of every transmitted or received frame on a given port.  This is a
small subset of what the hardware can do.  A pseudo ifnet with the same
name as the nexus driver (t4nex0 or t5nex0) will be created for tracing.
The data delivered to this ifnet is an additional copy made inside the
chip.  Normal delivery to cxgbe<n> or cxl<n> will be made as usual.

/* watch cxl0, which is the first port hanging off t5nex0. */
# cxgbetool t5nex0 tracer 0 tx0  (watch what cxl0 is transmitting)
# cxgbetool t5nex0 tracer 1 rx0  (watch what cxl0 is receiving)
# cxgbetool t5nex0 tracer list
# tcpdump -i t5nex0   <== all that cxl0 sees and puts on the wire

If you were doing TSO, a tcpdump on cxl0 may have shown you ~64K
"frames" with no L3/L4 checksum but this will show you the frames that
were actually transmitted.

/* all done */
# cxgbetool t5nex0 tracer 0 disable
# cxgbetool t5nex0 tracer 1 disable
# cxgbetool t5nex0 tracer list
# ifconfig t5nex0 destroy
2013-07-26 22:04:11 +00:00
Navdeep Parhar
4ff45b8b45 Reserve room for ioctls that aren't in this copy of the driver yet. 2013-07-26 20:54:33 +00:00
Navdeep Parhar
92ad6ac7d4 Specify a timeout for the PL block.
MFC after:	3 days
2013-07-17 02:37:40 +00:00
Navdeep Parhar
2b66d73259 Attach to the 4x10G T540-CR card. 2013-07-11 19:09:31 +00:00
Navdeep Parhar
3a760ee793 - Show the reason why link is down if this information is available.
- Display the temperature and PHY firmware version of the BT PHY.

MFC after:	1 day
2013-07-05 01:53:51 +00:00
Navdeep Parhar
6eb3180fb2 - Make note of interface MTU change if the rx queues exist, and not just
when the interface is up.
- Add a tunable to control the TOE's rx coalesce feature (enabled by
  default as it always has been).  Consider the interface MTU or the
  coalesce size when deciding which cluster zone to use to fill the
  offload rx queue's free list.  The tunable is:
  dev.{t4nex,t5nex}.<N>.toe.rx_coalesce

MFC after:	1 day
2013-07-04 21:19:01 +00:00
Navdeep Parhar
6300655cc1 On-the-fly changes to the interrupt coalescing timer should apply to the
TOE rx queues too.

MFC after:	1 day
2013-07-04 20:17:39 +00:00
Navdeep Parhar
50ce3d40aa Pay attention to TCP_NODELAY when it's set/unset after the connection
is established.

MFC after:	1 day
2013-07-04 19:44:30 +00:00
Navdeep Parhar
7e2fb22f81 Ring the egress queue's doorbell as soon as there are 8 or more
descriptors ready to be processed.

MFC after:	1 day
2013-07-04 19:15:41 +00:00
Navdeep Parhar
054a2dc11c The T5 allows the driver to specify the ISS. Do so; use the ISS picked
by the kernel.

MFC after:	1 day
2013-07-04 18:41:21 +00:00
Navdeep Parhar
c337fa30af - Read all TP parameters in one place.
- Read the filter mode, calculate various shifts, and use them
  properly during active open (in select_ntuple).

MFC after:	1 day
2013-07-04 17:55:52 +00:00
Navdeep Parhar
f72b68a1bf - Include the T5 firmware with the driver.
- Update the T4 firmware to the latest.
- Minor reorganization and updates to the version macros, etc.

Obtained from:	Chelsio
MFC after:	1 day
2013-07-03 23:52:15 +00:00
Navdeep Parhar
87c7afeb55 Add a sysctl to get the number of filters available.
sysctl dev.t4nex.<N>.nfilters
sysctl dev.t5nex.<N>.nfilters

MFC after:	3 days
2013-07-01 17:31:04 +00:00
Navdeep Parhar
9942898697 Update T5 register ranges. This is so that regdump skips over registers
with read side-effects.

MFC after:	3 days
2013-06-27 18:59:07 +00:00
Navdeep Parhar
f81cb396de cxgbe/tom: Allow caller to select the queue (control or data) used to
send the CPL_SET_TCB_FIELD request in t4_set_tcb_field().

MFC after:	1 week
2013-06-11 21:20:23 +00:00
Navdeep Parhar
e0f8a7f4da cxgbe/tom: Fix bad signed/unsigned mixup in the stid allocator. This
fixes a panic when allocating a mixture of IPv6 and IPv4 stids.

MFC after:	1 week
2013-06-08 07:23:26 +00:00
Navdeep Parhar
ad13c6af54 cxgbe(4): Never install a firmware if hw.cxgbe.fw_install is 0.
MFC after:	1 week
2013-06-05 20:57:52 +00:00
Navdeep Parhar
9050afc0a0 cxgbe(4): Provide accurate hit count for filters on T5 cards. The
location within the TCB and the size have both changed.

MFC after:	1 week
2013-06-04 02:25:25 +00:00
Navdeep Parhar
9e4ffff197 cxgbe(4): Some more debug sysctls. These work on both T4 and T5 based
cards.

dev.t5nex.0.misc.cim_ma_la: CIM MA logic analyzer
dev.t5nex.0.misc.cim_pif_la: CIM PIF logic analyzer
dev.t5nex.0.misc.mps_tcam: MPS TCAM entries
dev.t5nex.0.misc.tp_la: TP logic analyzer
dev.t5nex.0.misc.ulprx_la: ULPRX logic analyzer

Obtained from:	Chelsio
MFC after:	1 week
2013-06-01 02:07:37 +00:00
Konstantin Belousov
5ada86640b Add dependencies on the firmware, which allows the loading of the cxgb
and cxgbe modules.

Reviewed and approved by:	np
MFC after:	1 week
2013-05-16 13:07:02 +00:00
Navdeep Parhar
d607c7477c Deal correctly with 40G ports that don't have any transceiver plugged
in.  Do not claim that they have unknown tranceivers.

MFC after:	3 days
2013-05-13 20:00:03 +00:00
Navdeep Parhar
959cbee5b0 cxgbe: Switch to a better way to install firmware.
MFC after:	1 week
2013-05-03 20:09:17 +00:00