Commit Graph

73 Commits

Author SHA1 Message Date
Navdeep Parhar
890efa1ab9 cxgbe(4): Update firmwares to 1.25.0.40.
This fixes a potential crash in firmware 1.25.0.0 on the passive open
side during TOE operation.

Obtained from:	Chelsio Communications
MFC after:	1 week
Sponsored by:	Chelsio Communications
2020-11-06 19:04:20 +00:00
Navdeep Parhar
88c9c3f4dd cxgbe(4): Update T4/5/6 firmwares to 1.25.0.0.
Obtained from:	Chelsio Communications
MFC after:	3 days
Sponsored by:	Chelsio Communications
2020-09-17 22:14:11 +00:00
Bryan Drewery
4e4ec35e32 None of these use opt_sched.h 2020-04-28 16:09:18 +00:00
Konstantin Belousov
15fe251399 Introduce LINUXKPI_GENSRCS.
Centralize the list of generated files required by linuxkpi consumers,
into the common variable.  This way, consumers that use the variable
are insulated from possible changes in the list.

Reviewed by:	hselasky, imp
Sponsored by:	Mellanox Technologies
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D24137
2020-03-20 21:06:58 +00:00
Navdeep Parhar
77ad00bf36 cxgbe(4): Update T4/5/6 firmwares to 1.24.12.0.
Obtained from:	Chelsio Communications
MFC after:	1 month
Sponsored by:	Chelsio Communications
2020-02-12 02:55:06 +00:00
Navdeep Parhar
6f012c14bc cxgbe(4): Update T4/5/6 firmwares to 1.24.11.0.
These were obtained from the Chelsio Unified Wire v3.12.0.1 beta
release.

Note that the firmwares are not uuencoded any more.

MFH:		1 month
Sponsored by:	Chelsio Communications
2019-12-10 07:45:10 +00:00
John Baldwin
bddf73433e NIC KTLS for Chelsio T6 adapters.
This adds support for ifnet (NIC) KTLS using Chelsio T6 adapters.
Unlike the TOE-based KTLS in r353328, NIC TLS works with non-TOE
connections.

NIC KTLS on T6 is not able to use the normal TSO (LSO) path to segment
the encrypted TLS frames output by the crypto engine.  Instead, the
TOE is placed into a special setup to permit "dummy" connections to be
associated with regular sockets using KTLS.  This permits using the
TOE to segment the encrypted TLS records.  However, this approach does
have some limitations:

1) Regular TOE sockets cannot be used when the TOE is in this special
   mode.  One can use either TOE and TOE-based KTLS or NIC KTLS, but
   not both at the same time.

2) In NIC KTLS mode, the TOE is only able to accept a per-connection
   timestamp offset that varies in the upper 4 bits.  Put another way,
   only connections whose timestamp offset has the 28 lower bits
   cleared can use NIC KTLS and generate correct timestamps.  The
   driver will refuse to enable NIC KTLS on connections with a
   timestamp offset with any of the lower 28 bits set.  To use NIC
   KTLS, users can either disable TCP timestamps by setting the
   net.inet.tcp.rfc1323 sysctl to 0, or apply a local patch to the
   tcp_new_ts_offset() function to clear the lower 28 bits of the
   generated offset.

3) Because the TCP segmentation relies on fields mirrored in a TCB in
   the TOE, not all fields in a TCP packet can be sent in the TCP
   segments generated from a TLS record.  Specifically, for packets
   containing TCP options other than timestamps, the driver will
   inject an "empty" TCP packet holding the requested options (e.g. a
   SACK scoreboard) along with the segments from the TLS record.
   These empty TCP packets are counted by the
   dev.cc.N.txq.M.kern_tls_options sysctls.

Unlike TOE TLS which is able to buffer encrypted TLS records in
on-card memory to handle retransmits, NIC KTLS must re-encrypt TLS
records for retransmit requests as well as non-retransmit requests
that do not include the start of a TLS record but do include the
trailer.  The T6 NIC KTLS code tries to optimize some of the cases for
requests to transmit partial TLS records.  In particular it attempts
to minimize sending "waste" bytes that have to be given as input to
the crypto engine but are not needed on the wire to satisfy mbufs sent
from the TCP stack down to the driver.

TCP packets for TLS requests are broken down into the following
classes (with associated counters):

- Mbufs that send an entire TLS record in full do not have any waste
  bytes (dev.cc.N.txq.M.kern_tls_full).

- Mbufs that send a short TLS record that ends before the end of the
  trailer (dev.cc.N.txq.M.kern_tls_short).  For sockets using AES-CBC,
  the encryption must always start at the beginning, so if the mbuf
  starts at an offset into the TLS record, the offset bytes will be
  "waste" bytes.  For sockets using AES-GCM, the encryption can start
  at the 16 byte block before the starting offset capping the waste at
  15 bytes.

- Mbufs that send a partial TLS record that has a non-zero starting
  offset but ends at the end of the trailer
  (dev.cc.N.txq.M.kern_tls_partial).  In order to compute the
  authentication hash stored in the trailer, the entire TLS record
  must be sent as input to the crypto engine, so the bytes before the
  offset are always "waste" bytes.

In addition, other per-txq sysctls are provided:

- dev.cc.N.txq.M.kern_tls_cbc: Count of sockets sent via this txq
  using AES-CBC.

- dev.cc.N.txq.M.kern_tls_gcm: Count of sockets sent via this txq
  using AES-GCM.

- dev.cc.N.txq.M.kern_tls_fin: Count of empty FIN-only packets sent to
  compensate for the TOE engine not being able to set FIN on the last
  segment of a TLS record if the TLS record mbuf had FIN set.

- dev.cc.N.txq.M.kern_tls_records: Count of TLS records sent via this
  txq including full, short, and partial records.

- dev.cc.N.txq.M.kern_tls_octets: Count of non-waste bytes (TLS header
  and payload) sent for TLS record requests.

- dev.cc.N.txq.M.kern_tls_waste: Count of waste bytes sent for TLS
  record requests.

To enable NIC KTLS with T6, set the following tunables prior to
loading the cxgbe(4) driver:

hw.cxgbe.config_file=kern_tls
hw.cxgbe.kern_tls=1

Reviewed by:	np
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D21962
2019-11-21 19:30:31 +00:00
John Baldwin
a1b2b6e184 Create a file to hold shared routines for dealing with T6 key contexts.
ccr(4) and TLS support in cxgbe(4) construct key contexts used by the
crypto engine in the T6.  This consolidates some duplicated code for
helper functions used to build key contexts.

Reviewed by:	np
MFC after:	1 month
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D22156
2019-11-13 00:53:45 +00:00
John Baldwin
22fc8564bc Add opt_kern_tls.h to the sources from t4_tom.ko.
Missed in r353328.

Sponsored by:	Chelsio Communications
2019-10-09 23:35:42 +00:00
Navdeep Parhar
4a21f4c606 cxgbe(4): Update T4/5/6 firmwares to 1.23.0.0.
Obtained from:	Chelsio Communications
MFC after:	1 month
Sponsored by:	Chelsio Communications
2019-03-13 06:46:15 +00:00
John Baldwin
78afed1396 Move CLIP table handling out of TOM and into the base driver.
- Store the clip table in 'struct adapter' instead of in the TOM softc.
- Init the clip table during attach and teardown during detach.
- While here, add a dev.<nexus>.<unit>.misc.clip sysctl to dump the
  CLIP table.

This does mean that we update the clip table even if TOE is not enabled,
but non-TOE things need the CLIP table anyway.

Reviewed by:	np, Krishnamraju Eraparaju @ Chelsio
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D18010
2018-11-29 01:15:53 +00:00
Navdeep Parhar
c7a20141cc cxgbe(4): Update T4/5/6 firmwares to 1.22.0.3.
Obtained from:	Chelsio Communications
MFC after:	2 months
Sponsored by:	Chelsio Communications
2018-11-19 21:59:07 +00:00
Navdeep Parhar
e7e0844422 cxgbe(4): Replace T4_PKT_TIMESTAMP with something slightly less hackish. 2018-08-18 04:23:51 +00:00
Navdeep Parhar
2dae2a7487 cxgbe(4): Add code to deal with the chip's source MAC table (aka SMT).
Submitted by:	Krishnamraju Eraparaju @ Chelsio
Sponsored by:	Chelsio Communications
2018-05-31 21:31:08 +00:00
Navdeep Parhar
eff62dba61 cxgbe(4): Allocate offload Tx queues when a card has resources
provisioned for NIC_ETHOFLD and the kernel has option RATELIMIT.

It is possible to use the chip's offload queues for normal NIC Tx and
not just TOE Tx.  The difference is that these queues support out of
order processing of work requests and have a per-"flowid" mechanism for
tracking credits between the driver and hardware.  This allows Tx for
any number of flows bound to different rate limits to be submitted to a
single Tx queue and the work requests for slow flows won't cause HOL
blocking for the rest.

Sponsored by:	Chelsio Communications
2018-05-17 01:42:18 +00:00
Navdeep Parhar
b6f2c452cb cxgbe(4): Update all firmwares to 1.19.1.0.
These firmwares and the following list of changes are from the public
ChelsioUwire-3.7.1.0 release.

T6 Firmware
================================================================================
Version : 1.19.1.0
Date    : 04/23/2018
================================================================================

Fixes
-----

BASE:
- Fixed traffic stall when rate-limit is modified while running traffic.
- Fixes a firmware crash in FW_ETH_TX_EO_WR handling.
- Fixes host DCB support when FW_PORT_CMD is used.

ETH:
- Exit Auto-Negotiation if we don't receive base page from peer within 10s.
  This fixes some cases where in we keep on restarting auto negotiation without
  ever exiting, resulting in link failure.
- Fixes an issue where VF packets counter were not increasing if VF packets
  coalesced WR is used by driver.

OFLD:
- Kernel and user mode NVMEoF performance enhancements.

FOiSCSI:
- Fixes fw crash when trying to connect to non-existence IPv6 iSNS target.

================================================================================
Version : 1.18.9.0
Date    : 03/27/2018
================================================================================

Fixes
-----

BASE:
- For Ethernet frames less than 64B, pad them with zero bytes as per IEEE spec
  (RFC 894).
- Added a new parameter iqtype to FW_IQ_CMD to identify the ingress NIC or offload
  queues. This fixes an issue where driver was receiving interrupt with no new
  messages in queue.
- FW_PARAMS_CMD processes all the valaid paramaters and returns value 0UL for
  any unknown parameter.

OFLD:
- Fixes connection failure during SRQ reuse.
- Fixes incorrect cqe in case of WRITE with immediate operation.

FOiSCSI:
- Fixes a fw crash when wrong node-id is passed to FW_FOISCSI_CTRL_WR.

FOFCoE:
- Fixes a fw hang while creating NPIV.

Enhancements
------------

ETH:
- A new WR FW_ETH_TX_PKTS_VM_WR added to support VM packet coalescing.

================================================================================
Version : 1.18.4.0
Date    : 02/28/2018
================================================================================

Fixes
-----

BASE:
- Fixed Rate limiting not working for 101Mbps<=rate limit<=163Mbps range.
- Fixed starting more than 32 VMs on PF4 causing firmware hang.

ETH:
- Fixed link failure due to FEC mismatch with optics.
- Fixed link failure with link toggle stress tests.
- Only BaseR FEC is supported for 50G.
- Fixed a bug in next page handling which sometimes causes link down.
- Fixed port down due to failre to read eeprom contents of some modules.
- Fixed a bug causing adapter to fail with spider configuration.

FOiSCSI:
- Fixed a bug causing login failure when connecting to multiple targets.

Enhancements
------------

BASE:
- Added a new firmware API to retrieve the maximum temperaturethreshold for
  the chip (FW_PARAM_DEV_DIAG_MAXTMPTHRESH).

ETH:
- Added support for user to contol pause negotiation during auto negotiation.

FOiSCSI:
- Added a new facility to redirect few fw events to offload rx queue
  (based on driver's configration)
- Driver can ignore providing ipv6 prefix len during ipv6 address configuration.

================================================================================
Version : 1.17.14.0
Date    : 12/27/2017
================================================================================

FIXES
-----

BASE:
- Fixed an FLR failure during simulteneous power up of VM.
- Fixed an issue in vlan acl which was limiting vlan range to 1024.

ETH:
- Enabled RS-FEC for 25G active copper cable and 25GBASE-SR.
- When auto negotiation is enabled, final pause settings are resolved
  based on local and peer pause settings.
- Handle NACK for an I2C access.

OFLD
- Fixed rdma connection cleanup in SO adpater.
- Fixed rdma connections during read invalidate.
- Fixed the crash when invalid BW rate is passed to fw.
- Fixed the traffic hang when BW allocation is changed from switch during traffic.

FOFCoE:
- Fixed an issue where initiator remains logged-in even after LLDP is disabled
  on switch.

ENHANCEMENTS
------------

BASE:
- Added support for 248 VFs.
- Added fw driver periodic calibration for MC.

ETH:
- Added XLAUI port type support.
- Added raw mac entry deletion support (FW_VI_MAC_ID_BASED_FREE).

OFLD:
- Inline IPSec support added (flag F_FW_ULPTX_WR_DATA indicates the inline
  IPSec WR).
- New work request FW_RI_RDMA_WRITE_CMPL_WR (write with completion) added to

T5 Firmware
================================================================================
Version : 1.19.1.0
Date    : 04/23/2018
================================================================================

Fixes
-----

BASE:
- Fixes a firmware crash in FW_ETH_TX_EO_WR handling.
- Fixes host DCB support when FW_PORT_CMD is used.

ETH:
- Fixes an issue where VF packets counter were not increasing if VF packets
  coalesced WR is used by driver.

OFLD:
- Fixes an issue where fw hangs if max traffic rate passed is 0.

FOiSCSI:
-  Fixes fw crash when trying to connect to non-existence IPv6 iSNS target.

================================================================================
Version : 1.18.9.0
Date    : 03/27/2018
================================================================================

Fixes
-----

BASE:
- For Ethernet frames less than 64B, pad them with zero bytes as per IEEE spec
  (RFC 894).
- Added a new parameter iqtype to FW_IQ_CMD to identify the ingress NIC or offload
  queues. This fixes an issue where driver was receiving interrupt with no new
  messages in queue.

ETH:
- Pad the Ethernet packets of size less than 64B with zeros. This fixes the
  incorrect checksum generation of packets less then 64B.

FOiSCSI:
- Fixes a fw crash when wrong node-id is passed to FW_FOISCSI_CTRL_WR.

FOFCoE:
- Fixes a fw hang while creating NPIV.

Enhancements
------------

ETH:
- A new WR FW_ETH_TX_PKTS_VM_WR added to support VM packet coalescing.

================================================================================
Version : 1.18.4.0
Date    : 02/28/2018
================================================================================

Fixes
-----

BASE:
- Fixed starting more than 32 VMs on PF4 causing firmware hang.

FOiSCSI:
- Fixed a bug causing login failure when connecting to multiple targets.

Enhancements
------------

BASE:
- Added a new firmware API to retrieve the maximum temperaturethreshold for
  the chip (FW_PARAM_DEV_DIAG_MAXTMPTHRESH).

ETH:
- Added support for user to contol pause negotiation during auto negotiation.

FOiSCSI:
- Added a new facility to redirect few fw events to offload rx queue
  (based on driver's configration)
- Driver can ignore providing ipv6 prefix len during ipv6 address configuration.

================================================================================
Version : 1.17.14.0
Date    : 12/27/2017
================================================================================

FIXES
-----

BASE:
- Fixed an issue in vlan acl which was limiting vlan range to 1024.

ETH:
- Corrected lane inversion logic.
- Fixed improper LED behavior in T580 cards.
- When auto negotiation is enabled, final pause settings are resolved
  based on local and peer pause settings.
- Handle NACK for an I2C access.

OFLD
- Fixed rdma connections during read invalidate.

FOiSCSI:
- Fixed a connections hang when link is toggled frequently.

FOFCoE:
- Fixed an issue where initiator remains logged-in even after LLDP is disabled
  on switch.

ENHANCEMENTS
------------

BASE:
- Added support for 124 VFs.

ETH:
- Added XLAUI port type support.
- Added raw mac entry deletion support (FW_VI_MAC_ID_BASED_FREE).

OFLD:
- New work request FW_RI_RDMA_WRITE_CMPL_WR (write with completion) added to
  optimize NVMEoF write.

T4 Firmware
================================================================================
Version : 1.19.1.0
Date    : 04/23/2018
================================================================================

Fixes
-----

BASE:
- Fixes a firmware crash in FW_ETH_TX_EO_WR handling.
- Fixes host DCB support when FW_PORT_CMD is used.

FOiSCSI:
-  Fixes fw crash when trying to connect to non-existence IPv6 iSNS target.

================================================================================
Version : 1.18.9.0
Date    : 03/27/2018
================================================================================

Fixes
-----

BASE:
- Added a new paramter iqtype to FW_IQ_CMD to identify the ingress NIC or
  offload queues. This fixes an issue where driver was receiving interrupt with
  no new messages in queue.

FOFCoE:
- Fixes a fw hang while creating NPIV.

Enhancements
------------

ETH:
- A new WR FW_ETH_TX_PKTS_VM_WR added to support VM packet coalescing.

================================================================================
Version : 1.18.4.0
Date    : 02/28/2018
================================================================================

Enhancements
------------

BASE:
- Added a new firmware API to retrieve the maximum temperaturethreshold for
  the chip (FW_PARAM_DEV_DIAG_MAXTMPTHRESH).

================================================================================
Version : 1.17.14.0
Date    : 12/27/2017
================================================================================

FIXES
-----

BASE:
- Fixed an issue in vlan acl which was limiting vlan range to 1024.

MFC after:	3 days
Sponsored by:	Chelsio Communications
2018-05-05 20:16:08 +00:00
Navdeep Parhar
e1320420d5 cxgbe(4): Move all TCAM filter code into a separate file.
Sponsored by:	Chelsio Communications
2018-05-01 20:17:22 +00:00
John Baldwin
1e9538d253 Support for TLS offload of TOE connections on T6 adapters.
The TOE engine in Chelsio T6 adapters supports offloading of TLS
encryption and TCP segmentation for offloaded connections.  Sockets
using TLS are required to use a set of custom socket options to upload
RX and TX keys to the NIC and to enable RX processing.  Currently
these socket options are implemented as TCP options in the vendor
specific range.  A patched OpenSSL library will be made available in a
port / package for use with the TLS TOE support.

TOE sockets can either offload both transmit and reception of TLS
records or just transmit.  TLS offload (both RX and TX) is enabled by
setting the dev.t6nex.<x>.tls sysctl to 1 and requires TOE to be
enabled on the relevant interface.  Transmit offload can be used on
any "normal" or TLS TOE socket by using the custom socket option to
program a transmit key.  This permits most TOE sockets to
transparently offload TLS when applications use a patched SSL library
(e.g. using LD_LIBRARY_PATH to request use of a patched OpenSSL
library).  Receive offload can only be used with TOE sockets using the
TLS mode.  The dev.t6nex.0.toe.tls_rx_ports sysctl can be set to a
list of TCP port numbers.  Any connection with either a local or
remote port number in that list will be created as a TLS socket rather
than a plain TOE socket.  Note that although this sysctl accepts an
arbitrary list of port numbers, the sysctl(8) tool is only able to set
sysctl nodes to a single value.  A TLS socket will hang without
receiving data if used by an application that is not using a patched
SSL library.  Thus, the tls_rx_ports node should be used with care.
For a server mostly concerned with offloading TLS transmit, this node
is not needed as plain TOE sockets will fall back to software crypto
when using an unpatched SSL library.

New per-interface statistics nodes are added giving counts of TLS
packets and payload bytes (payload bytes do not include TLS headers or
authentication tags/MACs) offloaded via the TOE engine, e.g.:

dev.cc.0.stats.rx_tls_octets: 149
dev.cc.0.stats.rx_tls_records: 13
dev.cc.0.stats.tx_tls_octets: 26501823
dev.cc.0.stats.tx_tls_records: 1620

TLS transmit work requests are constructed by a new variant of
t4_push_frames() called t4_push_tls_records() in tom/t4_tls.c.

TLS transmit work requests require a buffer containing IVs.  If the
IVs are too large to fit into the work request, a separate buffer is
allocated when constructing a work request.  This buffer is associated
with the transmit descriptor and freed when the descriptor is ACKed by
the adapter.

Received TLS frames use two new CPL messages.  The first message is a
CPL_TLS_DATA containing the decryped payload of a single TLS record.
The handler places the mbuf containing the received payload on an
mbufq in the TOE pcb.  The second message is a CPL_RX_TLS_CMP message
which includes a copy of the TLS header and indicates if there were
any errors.  The handler for this message places the TLS header into
the socket buffer followed by the saved mbuf with the payload data.
Both of these handlers are contained in tom/t4_tls.c.

A few routines were exposed from t4_cpl_io.c for use by t4_tls.c
including send_rx_credits(), a new send_rx_modulate(), and
t4_close_conn().

TLS keys for both transmit and receive are stored in onboard memory
in the NIC in the "TLS keys" memory region.

In some cases a TLS socket can hang with pending data available in the
NIC that is not delivered to the host.  As a workaround, TLS sockets
are more aggressive about sending CPL_RX_DATA_ACK messages anytime that
any data is read from a TLS socket.  In addition, a fallback timer will
periodically send CPL_RX_DATA_ACK messages to the NIC for connections
that are still in the handshake phase.  Once the connection has
finished the handshake and programmed RX keys via the socket option,
the timer is stopped.

A new function select_ulp_mode() is used to determine what sub-mode a
given TOE socket should use (plain TOE, DDP, or TLS).  The existing
set_tcpddp_ulp_mode() function has been renamed to set_ulp_mode() and
handles initialization of TLS-specific state when necessary in
addition to DDP-specific state.

Since TLS sockets do not receive individual TCP segments but always
receive full TLS records, they can receive more data than is available
in the current window (e.g. if a 16k TLS record is received but the
socket buffer is itself 16k).  To cope with this, just drop the window
to 0 when this happens, but track the overage and "eat" the overage as
it is read from the socket buffer not opening the window (or adding
rx_credits) for the overage bytes.

Reviewed by:	np (earlier version)
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D14529
2018-03-13 23:05:51 +00:00
Navdeep Parhar
5c2bacde58 Update the iw_cxgbe bits in the projects branch.
Submitted by:	Krishnamraju Eraparaju @ Chelsio
Sponsored by:	Chelsio Communications
2017-11-07 23:52:14 +00:00
Navdeep Parhar
714d3ee05b cxgbe(4): Update T6, T5, and T4 firmwares to 1.16.63.0.
Changes since 1.16.26.0 for all three firmwares are listed below.  This
list was obtained from the Release Notes of the Chelsio Unified Wire
v3.5.05 release for Linux.

T6 Firmware
++++++++++++
================================================================================
Version : 1.16.63.0
Date    : 09/29/2017
================================================================================

Fixes
-----

BASE:
- Fixed a fw crash when configured traffic rate limit is less than 10kbps.
- Fixed traffic rate limiting for smaller traffic rate value.

ETH:
- Fixed 40G link failure when interface is toggled.
- Fixed adapter crash when interface is toggled during traffic.
- Fixed 25G link failure when PEER only supports consortium mode autoneg
  for 25G.
- Fixed 100G optics link failure when cable is plugged in after bringing up
  the interface.
- Enable RS FEC as default if speed is 100G.
- Fixed DCBX configuration refresh failure.

OFLD
- Fixed 0B iWARP ingress read failure.
- Fixed iWARP SRQ reuse failure.

FOiSCSI:
- Fixed vlan interface ping failure.
- Fixed target discovery failures.
- Fixed mutual chap login failure.

================================================================================
Version : 1.16.59.0
Date    : 09/05/2017
================================================================================

FIXES
-----

BASE:
- Fixed fw crash caused by MC parity error in SO adapters.
- Generate Timer0Int interrupt if fw crashes due to unaligned access error. Host
  driver must look into PCIE_FW register to see if any fw fatal error has
  encountered. If PCIE_FW doesn't indicate any error then driver must ignore this
  interrupt.
- Fixed receive buffer threshold settings which was resulting in error frames on
  receive side.

ETH:
- Fixed an issue in connection traffic shaping when
  FLOWC_WR->FW_FLOWC_MNEM_SCHEDCLASS is not received in first WR on the connection.
- Fixed link failure when speed is changed from 10G-1G-10G due to incorrect flag
  check.
- Fixed improper LED behaviour for blink test and when traffic is running.
- Removed storage of previous fec settings from fw. Driver needs to pass the user
  settings whenever a new module is plugged in as fw resets these when a module is
  unplugged.

OFLD
- OVS offload: TP cache is flushed periodically to get the accuate filters stats
  (hit count).

ENHANCEMENTS
------------

BASE:
- Ring backbone feature added. New FW_PARAMS_PARAM_DEV_RING_BACKBONE param type
  added to query and enable ring backbone support.
- VNI support added for filtering. New entry_type FW_VI_MAC_TYPE_EXACTMAC_VNI
  added to FW_VI_MAC_CMD.
- Added new API FW_PARAM_PARAM_DEV_MPSBGMAP to read the priority to buffer group
  mapping for the ports.
- FW_PARAMS_PARAM_DEV_TPCHMAP API added to read the port to channel mapping.
- HMA (Host memory access) support added. New FW_HMA_CMD and
  FW_PARAMS_PARAM_DEV_HMA_SIZE added to query and configure the HMA. It
  enables the memfree support (256 connections) for iwarp.
- PTP support enabled.

ETH:
- Added consortium mode 50G support.
- Added the ability to allow only selected speeds to be advertised during auto
  negotiation.
- Increased port capability from 16 to 32 bits to support more speeds.
  FW_PARAMS_PARAM_PFVF_PORT_CAPS32 added to query whether fw supports 16 or 32
  bit port capability.

OFLD:
- RDMA Write with immediate support added (iwarp 2.0 feature)
- FW_TLS_KEYCTX_TX_WR removed and security key management moved to driver.
- 256 offloaded connections support for iwarp on SO adapters.

iSCSI:
- New param FW_PARAMS_PARAM_DEV_PPOD_EDRAM added for iscsi ppod configuration
  in EDRAM (performance improvement).

FOiSCSI:
- iSCSI Command offload target support added.

FOFCoE:
- FCoE support enabled.

================================================================================
Version : 1.16.43.0
Date    : 05/05/2017
================================================================================

FIXES
-----

BASE:
- Fixed default DCB mode to AUTO.
- Fixed DCBX bugs when AUTO mode is configured in config file.
- Fixed an issue where even after removing PFC from switch, PFC wasn't getting
  reset.
- Fixed DDR3/DDR4 ECC errors.
- Fixed an FLR issue where FLR completion was going to host before FLR
  processing is finished in fw.

ETH:
- Fixed bug in writing multi-bytes using i2c interface.
- Fixed the link failure when optical cable is inserted into the QSA module
  after loading the driver.
- Fixed false link up when peer interface was brought down.
- Enabling RS FEC by default for 100Gbase-SR4 according to 802.3BJ standard.
- Fixed bugs related to negotiated fec based local/peer fec ability and request.
- Fixed auto-neg failure with few switches.
- T6 Performance improvement fixes.

OFLD
- Fixed an extra credit issue if FW_RI_TYPE_FINI is delayed in fw due to
  backpressure.
- Added a new queue type FW_IQ_TYPE_VF_CQ to handle the FW_PARAMS_PARAM_DMAQ*
  commands. queue type will be part of the FW_PARAMS_PARAM_DMAQ_IQ_INTIDX
  value. Used in guest RDMA (RDMA from VM/VF) usecase.
- T6 Crypto Coprocessor mode bug fixes.
- T6 Crypto TLS-inline mode bug fixes.

ENHANCEMENTS
------------

BASE:
- Added new API FW_PARAM_PARAM_DEV_MPSBGMAP to read the priority to buffer
  group mapping for the ports.

ETH:
- Added broadcom consortium next page support for 25G CR.
  This can be enabled using flags=an_brcm option in the t6-config.txt file.
- Added spider mode support.
- Added support for 10G-BaseT converter sfp+ module.
- Added support for additional 25G/100G cables.
- Added support to enable/disable auto-neg using ethtool.

================================================================================
Version : 1.16.33.0
Date    : 02/24/2017
================================================================================

Fixes
-----

BASE:
- Fixed DDR4 uncorrectable errors.

ETH:
- Enabled link auto negotiation (AN) by default in config file.
- Added AN and FEC control api. Host driver and application can enable/disable
  AN and FEC.

ENHANCEMENTS
------------

BASE:
- Enabled High priorty filter.
- Added T6425 adapter support.

ETH:
- Added new workrequest ETH_TX_PKTS2_WR (see fw api document for more details).

================================================================================
Version : 1.16.29.0
Date    : 01/27/2017
================================================================================

FIXES
-----

BASE:
- Set multiple fec values only if AN is enabled in config file and when module
  is connected.
- Fixed intermittent DDR3/4 ECC errors.
- max number of ethctrl queue in VF set to 2 (reverted the last change
  because it causes problem in VF drivers).

ETH:
- Made devlog more verbose by printing cable information in redable form.
- Updated AN settings to work with more 25G/100G switches.
- Added support for more SFP28/QSFP28 cables.
- Fixed an issue of link going down after few hours of idle time.

OFLD:
- Fixed an issue in TLS which was causing fw crash on running TLS traffic.

FOiSCSI:
- Fixed the failure of PXE boot OS install on an iscsi lun.

ENHANCEMENTS
------------

OFLD:
- Added filtering support for NAT. New WR FW_FILTER2_WR and
  FW_PARAMS_PARAM_DEV_FILTER2_WR added for the same.
- Added RDMA guest mode (mode 3 or RDMA from VF) support.

================================================================================

T5 Firmware
++++++++++++
================================================================================
Version : 1.16.63.0
Date    : 09/29/2017
================================================================================

Fixes
-----

BASE:
- Fixed offload memory overcommit in case of SO adapter.

ETH:
- Fixed DCBX configuration refresh failure.

OFLD
- Fixed 0B iWARP ingress read failure.

FOiSCSI:
- Fixed vlan interface ping failure.

================================================================================
Version : 1.16.59.0
Date    : 09/05/2017
================================================================================

FIXES
-----

BASE:
- Fixed an FLR issue which was causing error when VF attached VM was powered on.

ETH:
- Fixed an issue in connection traffic shaping when
  FLOWC_WR->FW_FLOWC_MNEM_SCHEDCLASS is not received in first WR on the connection.
- Fixed link failure when speed is changed from 10G-1G-10G due to incorrect flag
  check.
- Fixed T580 link failure with few switches which take more time for
  establishing link.

ENHANCEMENTS
------------

BASE:
- Ring backbone feature added. New FW_PARAMS_PARAM_DEV_RING_BACKBONE param type
  added to query and enable ring backbone support.
- Added new API FW_PARAM_PARAM_DEV_MPSBGMAP to read the priority to buffer group
  mapping for the ports.
- FW_PARAMS_PARAM_DEV_TPCHMAP API added to read the port to channel mapping.

FOiSCSI:
- iSCSI Command offload target support added.

================================================================================
Version : 1.16.43.0
Date    : 05/05/2017
================================================================================

FIXES
-----

BASE:
- Fixed default DCB mode to AUTO.
- Fixed DCBX bugs when AUTO mode is configured in config file.
- Fixed an issue where even after removing PFC from switch, PFC wasn't getting
  reset.

ETH:
- Fixed bug in writing multi-bytes using i2c interface.
- Fixed the link failure when optical cable is inserted into the QSA module
  after loading the driver.

OFLD
- Fixed an extra credit issue if FW_RI_TYPE_FINI is delayed in fw due to
  backpressure.
- Added a new queue type FW_IQ_TYPE_VF_CQ to handle the FW_PARAMS_PARAM_DMAQ*
  commands. queue type will be part of the FW_PARAMS_PARAM_DMAQ_IQ_INTIDX
  value. Used in guest RDMA (RDMA from VM/VF) usecase.

ENHANCEMENTS
------------

BASE:
- Added new API FW_PARAM_PARAM_DEV_MPSBGMAP to read the priority to buffer
  group mapping for the ports.

================================================================================
Version : 1.16.33.0
Date    : 02/24/2017
================================================================================

ENHANCEMENTS
------------

ETH:
- Added new workrequest ETH_TX_PKTS2_WR (see fw api document for more details).

================================================================================
Version : 1.16.29.0
Date    : 01/27/2017
================================================================================

FIXES
-----

BASE:
- max number of ethctrl queue in VF set to 2 (reverted the last change
  because it causes problem in VF drivers).

FOiSCSI:
- Fixed the failure of PXE boot OS install on an iscsi lun.

ENHANCEMENTS
------------

OFLD:
- Added filtering support for NAT. New WR FW_FILTER2_WR and
  FW_PARAMS_PARAM_DEV_FILTER2_WR added for the same.
- Added RDMA guest mode (mode 3 or RDMA from VF) support.

================================================================================

T4 Firmware
+++++++++++
================================================================================
Version : 1.16.63.0
Date    : 09/29/2017
================================================================================

Fixes
-----

ETH:
- Fixed DCBX configuration refresh failure.

FOiSCSI:
- Fixed vlan interface ping failure.

================================================================================
Version : 1.16.59.0
Date    : 09/05/2017
================================================================================

FIXES
-----

ETH:
- Fixed an issue in connection traffic shaping when
  FLOWC_WR->FW_FLOWC_MNEM_SCHEDCLASS is not received in first WR on the connection.

ENHANCEMENTS
------------

BASE:
- FW_PARAMS_PARAM_DEV_TPCHMAP API added to read the port to channel mapping.

================================================================================
Version : 1.16.43.0
Date    : 05/05/2017
================================================================================

FIXES
-----

BASE:
- Fixed default DCB mode to AUTO.
- Fixed DCBX bugs when AUTO mode is configured in config file.
- Fixed an issue where even after removing PFC from switch, PFC wasn't getting
  reset.

ETH:
- Fixed bug in writing multi-bytes using i2c interface.

OFLD
- Fixed an extra credit issue if FW_RI_TYPE_FINI is delayed in fw due to
  backpressure.
- Added a new queue type FW_IQ_TYPE_VF_CQ to handle the FW_PARAMS_PARAM_DMAQ*
  commands. queue type will be part of the FW_PARAMS_PARAM_DMAQ_IQ_INTIDX
  value. Used in guest RDMA (RDMA from VM/VF) usecase.

ENHANCEMENTS
------------

BASE:
- Added new API FW_PARAM_PARAM_DEV_MPSBGMAP to read the priority to buffer
  group mapping for the ports.

Obtained from:	Chelsio Communications
MFC after:	2 weeks
Sponsored by:	Chelsio Communications
2017-10-07 17:24:23 +00:00
Navdeep Parhar
fc740a161b cxgbe(4): Update T6/T5/T4 firmwares to 1.16.59.0.
These firmwares come from a pre-release snapshot.  The final firmwares
in this Chelsio release cycle will likely be .61.0 or later and those
will be the next "long lived" firmwares in FreeBSD head and stable
branches.  .59 is being provided in head (only) for wider test exposure.

Obtained from:	Chelsio Communications
Sponsored by:	Chelsio Communications
2017-08-29 23:37:26 +00:00
Navdeep Parhar
f856f099cb cxgbe(4): Initial import of the "collect" component of Chelsio unified
debug (cudbg) code, hooked up to the main driver via an ioctl.

The ioctl can be used to collect the chip's internal state in a
compressed dump file.  These dumps can be decoded with the "view"
component of cudbg.

Obtained from:	Chelsio Communications
MFC after:	2 months
Sponsored by:	Chelsio Communications
2017-08-03 14:43:30 +00:00
Navdeep Parhar
7c0cad38c7 cxgbe(4): Update the T4, T5, and T6 firmwares to 1.16.45.0.
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
2017-05-23 23:40:17 +00:00
John Baldwin
5033c43b7a Add a driver for the Chelsio T6 crypto accelerator engine.
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
2017-05-17 22:13:07 +00:00
Navdeep Parhar
6790499792 cxgbe/t4_tom: Per-connection rate limiting for TCP sockets handled by
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
2017-05-05 20:06:49 +00:00
Navdeep Parhar
2204b42716 cxgbe(4): Support routines for Tx traffic scheduling.
- 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
2017-05-02 20:38:10 +00:00
Enji Cooper
193d9e768b sys/modules: normalize .CURDIR-relative paths to SRCTOP
This simplifies make output/logic

Tested with:	`cd sys/modules; make ALL_MODULES=` on amd64
MFC after:	1 month
Sponsored by:	Dell EMC Isilon
2017-03-04 10:10:17 +00:00
Navdeep Parhar
c88fa71928 cxgbe(4): Update T4, T5 and T6 firmwares to 1.16.26.0. Changelog for
all public firmwares for all chips since the last release (1.15.37.0)
follows (it's a straight copy-paste from the Release Notes for the
12/30/2016 Unified Wire release on Chelsio's website).

T6 Firmware
++++++++++++

Version : 1.16.26.0
Date    : 12/28/2016

Fixes
-----

BASE:
- Max number of egress and control queues adjusted to accomodate
  co-processor mode queues.
- Fixed intermittent DDR3/4 ECC errors.
- Fixed a traffic stall when ETS BW is configured as 0%.
- Max number of ethctrl queue in VF set to 1.

ETH:
- Added a new config file option 'speed' under port section to set the
  port speed.  Use only when auto negotiation is off.
- FEC option removed from firmware config file. cxgbtool can be used to
  change the fec setting.
- CPL_TX_TNL_LSO cpl handling added in ETH_TX_PKT_VM handler. This fixes
  large tunnel tcp packet support for VxLAN.

Version : 1.16.22.0
Date    : 12/05/2016

Fixes
-----

BASE:
- fw_port_type updated in fw API to match kernel.org definitions.
- Saved power by disaling unused MAC lanes.
- Configures correct power bin.
- Enhanced DDR4 performance.
- Enabled interrupts.
- Fixed an issue where filter rule for 'unicast hash' is not working.

ETH:
- Disabled auto negotiation by default because most of 100G switches do
  not support AN as of today.
- Fixed flow control not getting disabled problem.
- Fixed an issue where port0 doesn't come up sometimes.
- Fixed 10G link not coming up issue.
- Fixed an issue with promiscuous mode when dcbx disabled.

OFLD:
- Fixed a connection stuck issue when abort is received during out of tx
  pages backpressure.

ENHANCEMENTS
------------

BASE:
- Added inline TLS mode support.

Version : 1.16.12.0
Date    : 11/11/2016

ENHANCEMENTS
------------

BASE:
- Added T6 support.
- Added T6 1G/10G/25G/40G/100G link speeds.
- Added T6 co-processor mode crypto support.
- Added facility to increase link AN+AEC timeout.

OFLD:
- Added support for all T5 offload protocols except FCoE.

iSCSI:
- iscsi completion moderation enabled.

=======================================================================

T5 Firmware
++++++++++++

Version : 1.16.26.0
Date    : 12/28/2016

FIXES
-----

BASE:
- Max number of ethctrl queue in VF set to 1.

Version : 1.16.22.0
Date    : 12/05/2016

FIXES
-----

BASE:
- Fixed an issue where filter rule for 'unicast hash' is not working.

ETH:
- Fixed an issue with promiscuous mode when dcbx disabled.

ENHANCEMENTS
------------

ETH:
- Added 40G-KR support.

Version : 1.16.12.0
Date    : 11/11/2016

FIXES
-----

BASE:
- Fixed multiple issues related with VFs FLR processing.
- Fixed channel assignment based on number of ports in adapter.
- Fixed a crash when VM having PF assigned as passthrough mode is
  rebooted.
- Handled 2nd HELLO command from the same PF without seeing BYE from the
  same PF and if that is the only PF.
- A warning is printed in firmware log if PCI-E cookie generation is
  enabled in serial initialization file.
- Fixed multiple issues related with Filtering.
- Enabled DSGL memory write for iscsi and rdma.
- Added new FW_PARAMS_CMD[DEV] options to retrieve Serial Configuration
  and VPD version numbers.
- Fixed an issue where LVDS output was not getting enabled using vpd.

DCBX:
- Fixed DCBX CEE Incorrect class to pririty mapping.
- Fixed incorrect interpretation of DCBX IEEE PFC.

ETH:
- Adjusted the link related delay timings according to the QSFP spec.
- Improved 40G link bringup time with few switches.

OFLD:
- Do not reserve qp/cq if rdma capability is not enabled.
- Fixed an issue where approx 1600+ TOE connections were causing a
  firmware fatal error.

FOiSCSI:
- Fixed an issue where unloading foiscsi driver causes mailbox timeout.

ENHANCEMENTS
------------

BASE:
- Added 10G KR/KX support.
- Added T540-BT adapter support.
- Added 4 new rss key modes for PFs and VFs.

OFLD:
- Added new WR FW_RI_FR_NSMR_TPTE_WR to improve fast MR write
  performance in RDMA.

Version : 1.16.5.0
Date    : 10/26/2016

FIXES
-----

BASE:
- Fixed multiple issues where FLR from multiple VFs can cause firmware
  crash.
- Fixed channel assignment based on number of ports in adapter.
- Fixed the HELLO command master force api to handle the 2nd HELLO
  correctly without getting BYE from the PF driver.
- Added facility to retrieve Serial configuration and VPD version. Two
  new FW_PARAMS_CMD[DEV] options added to retrieve these values.
- Fixed multiple issues where FLR from multiple VFs are not completing.
- Added new RSS hash secret key modes.
- Fixed an issue where LVDS output was not getting enabled using vpd.

DCBX:
- Fixed an issue where iscsi tlv is sent incorrectly to host (DCBX CEE).
- Fixed an issue where app priority values are not handled correctly
  in fw (DCBX IEEE).

ETH:
- Adjusts the link related delay timings according to the QSFP spec.
- Changed 2.5G mac speed bit to 25G mac speed bit in fw API.
- Improvement in 40G link bringup time with few switches.

OFLD:
- Do not reserve qp/cq if rdma capability is not enabled.
- Fixed an issue where approx 1600+ TOE connections were causing a
  firmware fatal error.
- Fixed DSGL memory write in T5. Now iwarp and iscsi can use DSGL to do
  memory write.
- Fixed multiple issues in hash filter mode where incorrect protocol
  mask was getting used and affecting hash filter functionality.
- New fastpath WR FW_RI_FR_NSMR_TPTE_WR (with fully populated TPTE) is
  added for small REG_MR operations.

FOiSCSI:
- Fixed an issue in foiscsi recovery path.
- Fixed an issue where foiscsi (in VM in PCIE passthrough mode) didn't
  come up after VM FLR.

ENHANCEMENTS
------------

ETH:
- Implemented 1G/10G KR/KX ability.
- Implemented T540-BT adapter support.

=======================================================================

T4 Firmware
+++++++++++

Version : 1.16.12.0
Date    : 11/11/2016

FIXES
-----

BASE:
- Fixed an issue where reading temperature sesors using ldst command
  causes mailbox timeout.
- Added new FW_PARAMS_CMD[DEV] options to retrieve Serial Configuration
  and VPD version numbers.

ETH:
- Fixed DCBX CEE Incorrect class to pririty mapping.

FOiSCSI:
- Fixed an issue where unloading foiscsi driver causes mailbox timeout.

MFC after:	3 days
Sponsored by:	Chelsio Communications
2017-01-03 22:05:07 +00:00
Navdeep Parhar
3cbaf64f2e cxgbe(4): Update firmwares from version 1.16.12.0 to 1.16.22.0.
Obtained from:	Chelsio Communications
MFC after:	3 days
Sponsored by:	Chelsio Communications
2016-12-06 12:43:07 +00:00
Navdeep Parhar
a10443e8ba cxgbe(4): Include firmware for T6 cards in the driver. Update all
firmwares to 1.16.12.0.

Obtained from:	Chelsio Communications
MFC after:	3 days
Sponsored by:	Chelsio Communications
2016-11-30 00:26:35 +00:00
Navdeep Parhar
e6b81479f9 cxgbe(4): Attach to cards with the Terminator 6 ASIC. T6 cards will
come up as 't6nex' nexus devices with 'cc' ports hanging off them.

The T6 firmware and configuration files will be added as soon as they
are released.  For now the driver will try to work with whatever
firmware and configuration is on the card's flash.

Sponsored by:	Chelsio Communications
2016-09-16 00:08:37 +00:00
John Baldwin
6af45170c1 Chelsio T4/T5 VF driver.
The cxgbev/cxlv driver supports Virtual Function devices for Chelsio
T4 and T4 adapters.  The VF devices share most of their code with the
existing PF4 driver (cxgbe/cxl) and as such the VF device driver
currently depends on the PF4 driver.

Similar to the cxgbe/cxl drivers, the VF driver includes a t4vf/t5vf
PCI device driver that attaches to the VF device.  It then creates
child cxgbev/cxlv devices representing ports assigned to the VF.
By default, the PF driver assigns a single port to each VF.

t4vf_hw.c contains VF-specific routines from the shared code used to
fetch VF-specific parameters from the firmware.

t4_vf.c contains the VF-specific PCI device driver and includes its
own attach routine.

VF devices are required to use a different firmware request when
transmitting packets (which in turn requires a different CPL message
to encapsulate messages).  This alternate firmware request does not
permit chaining multiple packets in a single message, so each packet
results in a firmware request.  In addition, the different CPL message
requires more detailed information when enabling hardware checksums,
so parse_pkt() on VF devices must examine L2 and L3 headers for all
packets (not just TSO packets) for VF devices.  Finally, L2 checksums
on non-UDP/non-TCP packets do not work reliably (the firmware trashes
the IPv4 fragment field), so IPv4 checksums for such packets are
calculated in software.

Most of the other changes in the non-VF-specific code are to expose
various variables and functions private to the PF driver so that they
can be used by the VF driver.

Note that a limited subset of cxgbetool functions are supported on VF
devices including register dumps, scheduler classes, and clearing of
statistics.  In addition, TOE is not supported on VF devices, only for
the PF interfaces.

Reviewed by:	np
MFC after:	2 months
Sponsored by:	Chelsio Communications
Differential Revision:	https://reviews.freebsd.org/D7599
2016-09-07 18:13:57 +00:00
Navdeep Parhar
7cba15b16e cxgbe/cxgbei: Retire all DDP related code from cxgbei and switch to
routines available in t4_tom to manage the iSCSI DDP page pod region.

This adds the ability to use multiple DDP page sizes to the iSCSI
driver, among other improvements.

Sponsored by:	Chelsio Communications
2016-09-01 20:43:01 +00:00
John Baldwin
f91fca5ba7 Add a driver to create VF devices on Chelsio T4/T5 NICs.
Chelsio NICs are a bit unique compared to some other NICs in that they
expose different functionality on different physical functions.  In
particular, PF4 is used to manage the NIC interfaces ('t4nex' and 't5nex').
However, PF4 is not able to create VF devices.  Instead, VFs are only
supported by physical functions 0 through 3.  This commit adds 't4iov'
and 't5iov' drivers that attach to PF0-3.

One extra wrinkle is that the iov devices cannot enable SR-IOV until the
firwmare has been initialized by the main PF4 driver.  To handle this
case, a new t4_if kobj interface has been added to permit cross-calls
between the PF drivers.  The PF4 driver notifies sibling drivers when it
is fully attached.  It also requests sibling drivers to detach before it
detaches.  Sibling drivers query the PF4 driver during their attach
routine to see if it is attached.  If not, the sibling drivers defer
their attach actions until the PF4 driver informs them it is attached.

VF devices are associated with a single port on the NIC.  VF devices
created from PF0 are associated with the first port on the NIC, VFs
from PF1 are associated with the second port, etc.  VF devices can
only be created from a PF device that has an associated port.  Thus,
on a 2-port card, VFs are only supported on PF0 and PF1.

Reviewed by:	np (earlier versions)
MFC after:	1 month
Sponsored by:	Chelsio Communications
2016-07-22 22:46:41 +00:00
Navdeep Parhar
96807c23ce cxgbe(4): Update T5 and T4 firmwares to 1.15.37.0.
These firmwares were obtained from the "Chelsio T5/T4 Unified Wire
v2.12.0.3 for Linux" release.  Changes since 1.14.4.0 (which is the
firmware in -STABLE branches) are in the "Release Notes" accompanying
the Unified Wire release and are copy-pasted here as well.

22.1. T5 Firmware
+++++++++++++++++++++++++++++++++

Version : 1.15.37.0
Date    : 04/27/2016
================================================================================

FIXES
-----

BASE:
 - Fixed an issue in FW_RSS_VI_CONFIG_CMD handling where the default ingress
   queue was ignored.
 - Fixed an issue where adapter failed to load fw by adjusting DRAM frequency.
 - Fixed an issue in watchdog which was causing VM bring-up failure after reboot.
 - Fixed 40G link failures with some switches when auto-negotiation enabled.
 - Fixed to improve on link bring-up time.
 - Per port buffer groups size doubled to improve performance.
 - Fixed an issue where bogus d3hot bits were set causing traffic stall.
 - Fixed an issue where sometimes adapter was not seen after reboot.
 - Fixed an issue where iWARP was crashing in conjunction with traffic management.
 - Fixed an issue where link failed to come up after removing twinax cable and
   inserting optical module.

ETH
 - Fixed a link flap issue on T580-CR.

OFLD
 - Fixed a potential iSCSI data corruption issue by disabling RxFragEn flag.

FOiSCSI
 - Fixed an issue in recovery path where connection was getting closed before
   recovery processing was done.
 - Fixed an issue in TCP port reuse.
 - Fixed an issue in recovery path when large number (>64) of iSCSI connections
   were in use.
 - Returned ENETUNREACH if IP was not been provisioned yet and driver tried to
   use given inerface.
 - Fixed an issue where fw was sending ENETUNREACH event for normal tcp
   disconnection.

DCBX
 - Fixed an issue where iscsi tlv is sent incorrectly to host. (DCBX CEE)
 - Fixed an issue where apply bit set for APP id was affecting the ETS and PFC
  settings.(DCBX IEEE)
 - Fixed an issue where app priority values are not handled correctly in fw.
  (DCBX IEEE)
 - Fixed an issue where enable/disable dcbx can cause crash. (DCBX CEE,DCBX IEEE)

FOFCoE
 - Removed BB6 support.

ENHANCEMENTS
------------

BASE:
 - Added new interface to program DCA settings in SGE contexts; allow 32-byte
   IQE size
 - Added PTP interface fw_ptp_ts to support PTP Frequeny and Offset adjustment.
 - Added MPS raw interface.

ETH:
 - New mailbox command FW_DCB_IEEE_CMD api added for IEEE dcbx.

OFLD:
 - WR opcode is returned to host in cqe error response.

22.2. T4 Firmware
+++++++++++++++++

Version : 1.15.37.0
Date    : 04/27/2016
================================================================================

FIXES
-----

BASE:
 - Fixed an issue in FW_RSS_VI_CONFIG_CMD handling where default ingress queue
   was ignored.
 - Fixed an issue in watchdog which was causing VM bring-up failure after reboot.
 - Per port buffer groups size doubled to improve performance.
 - Fixed an issue where iWARP was crashing in conjunction with traffic management.

FOiSCSI:
 - Fixed an issue in recovery path where connection was getting closed before
   recovery processing was done.
 - Fixed an issue in TCP port reuse.
 - Fixed an issue in recovery path when large number (>64) of iSCSI connections
   were in use.
 - Returned ENETUNREACH if IP had not been provisioned yet and driver tried to
   use given inerface.

DCBX
 - Fixed an issue where iscsi tlv is sent incorrectly to host.(DCBX CEE)
 - Fixed an issue where enable/disable dcbx can cause crash in firmware.(DCBX CEE)

FOiSCSI
 - Fixes an issue where fw was sending ENETUNREACH event for normal tcp
   disconnection.

FOFCoE
 - Removed BB6 support.

ENHANCEMENTS
------------

BASE:
 - Added MPS raw interface.

ETH:
 - New mailbox command FW_DCB_IEEE_CMD api added for IEEE dcbx.
================================================================================

Obtained from:	Chelsio Communications
MFC after:	6 weeks
Relnotes:	yes
Sponsored by:	Chelsio Communications
2016-05-13 17:38:59 +00:00
John Baldwin
113f2316c6 Add a 'show t4 tcb <nexus> <tid>' command to dump a TCB from DDB.
This allows the contents of a TCB to be extracted from a T4/T5 card in
DDB after a panic.
2016-04-10 05:06:58 +00:00
Navdeep Parhar
dd991bd5a1 cxgbe(4): Update T5 and T4 firmwares to 1.15.28.0.
These firmwares were obtained from the beta "Chelsio T5/T4 Unified Wire
v2.12.0.2 for Linux" release.  Changes since last release are listed in the
"Release Notes" accompanying the beta release and are copy-pasted here as well.

The plan is to have only GA'd firmwares in any -STABLE FreeBSD branch so I'll
MFC this (after 2 months) only if it ends up in a GA release.

================================================================================
================================================================================

22.1. T5 Firmware
+++++++++++++++++++++++++++++++++

Version : 1.15.28.0
Date    : 02/29/2016
================================================================================

FIXES
-----

BASE:
 - Fixed an issue in FW_RSS_VI_CONFIG_CMD handling where the default ingress
   queue was ignored.
 - Fixed an issue where adapter failed to load fw by adjusting DRAM frequency.
 - Fixed an issue in watchdog which was causing VM bring-up failure after
   reboot.
 - Fixed 40G link failures with some switches when auto-negotiation enabled.
 - Fixed to improve on link bring-up time.
 - Per port buffer groups size doubled to improve performance.
 - Fixed an issue where bogus d3hot bits were set causing traffic stall.
 - Fixed an issue where sometimes adapter was not seen after reboot.
 - Fixed an issue where iWARP was crashing in conjunction with traffic
   management.
 - Fixed an issue where link failed to come up after removing twinax cable and
   inserting optical module.

OFLD
 - Fixed a potential iSCSI data corruption issue by disabling RxFragEn flag.

FOiSCSI
 - Fixed an issue in recovery path where connection was getting closed before
   recovery processing was done.
 - Fixed an issue in TCP port reuse.
 - Fixed an issue in recovery path when large number (>64) of iSCSI connections
   were in use.
 - Returned ENETUNREACH if IP was not been provisioned yet and driver tried to
   use given inerface.

ENHANCEMENTS
------------

BASE:
 - Added new interface to program DCA settings in SGE contexts; allow 32-byte
   IQE size
 - Added PTP interface fw_ptp_ts to support PTP Frequeny and Offset adjustment.
 - Added MPS raw interface.

ETH:
 - New mailbox command FW_DCB_IEEE_CMD api added for IEEE dcbx.

OFLD:
 - WR opcode is returned to host in cqe error response.

================================================================================
================================================================================

22.2. T4 Firmware
+++++++++++++++++

Version : 1.15.28.0
Date    : 02/29/2016
================================================================================

FIXES
-----

BASE:
 - Fixed an issue in FW_RSS_VI_CONFIG_CMD handling where default ingress queue
   was ignored.
 - Fixed an issue in watchdog which was causing VM bring-up failure after
   reboot.
 - Per port buffer groups size doubled to improve performance.
 - Fixed an issue where iWARP was crashing in conjunction with traffic
   management.

FOiSCSI:
 - Fixed an issue in recovery path where connection was getting closed before
   recovery processing was done.
 - Fixed an issue in TCP port reuse.
 - Fixed an issue in recovery path when large number (>64) of iSCSI connections
   were in use.
 - Returned ENETUNREACH if IP had not been provisioned yet and driver tried to
   use given inerface.

ENHANCEMENTS
------------

BASE:
 - Added MPS raw interface.

ETH:
 - New mailbox command FW_DCB_IEEE_CMD api added for IEEE dcbx.

================================================================================

Obtained from:	Chelsio Communications
MFC after:	2 months
Sponsored by:	Chelsio Communications
2016-03-01 02:36:50 +00:00
Navdeep Parhar
e3148e46b2 cxgbei: Hardware accelerated iSCSI target and initiator for TOE capable
cards supported by cxgbe(4).

On the host side this driver interfaces with the storage stack via the
ICL (iSCSI Common Layer) in the kernel.  On the wire the traffic is
standard iSCSI (SCSI over TCP as per RFC 3720/7143 etc.) that
interoperates with all other standards compliant implementations.  The
driver is layered on top of the TOE driver (t4_tom) and promotes
connections being handled by t4_tom to iSCSI ULP (Upper Layer Protocol)
mode.  Hardware assistance in this mode includes:

- Full TCP processing.
- iSCSI PDU identification and recovery within the TCP stream.
- Header and/or data digest insertion (tx) and verification (rx).
- Zero copy (both tx and rx).

Man page will follow in a separate commit in a couple of weeks.

Relnotes:	Yes
Sponsored by:	Chelsio Communications
2015-12-26 06:05:21 +00:00
Hans Petter Selasky
8d59ecb214 Finish process of moving the LinuxKPI module into the default kernel build.
- Move all files related to the LinuxKPI into sys/compat/linuxkpi and
  its subfolders.
- Update sys/conf/files and some Makefiles to use new file locations.
- Added description of COMPAT_LINUXKPI to sys/conf/NOTES which in turn
  adds the LinuxKPI to all LINT builds.
- The LinuxKPI can be added to the kernel by setting the
  COMPAT_LINUXKPI option. The OFED kernel option no longer builds the
  LinuxKPI into the kernel. This was done to keep the build rules for
  the LinuxKPI in sys/conf/files simple.
- Extend the LinuxKPI module to include support for USB by moving the
  Linux USB compat from usb.ko to linuxkpi.ko.
- Bump the FreeBSD_version.
- A universe kernel build has been done.

Reviewed by:	np @ (cxgb and cxgbe related changes only)
Sponsored by:	Mellanox Technologies
2015-10-29 08:28:39 +00:00
Navdeep Parhar
07d684f712 cxgbe(4): support for the kernel RSS option.
You need PCBGROUP and RSS in the kernel config to use this.

Relnotes:	Yes
Sponsored by:	Chelsio Communications
2015-10-16 01:19:55 +00:00
Navdeep Parhar
d94b89b915 cxgbe(4): Update T5 and T4 firmwares bundled with the driver to 1.14.4.0. The
changes in the firmwares since 1.11.27.0 are listed here (straight copy-paste
from the "Release Notes.txt" accompanying the Chelsio Unified Wire 2.11.1.0
release on the website).

22.1. T5 Firmware
+++++++++++++++++++++++++++++++++

Version : 1.14.4.0
Date    : 08/05/2015
================================================================================

FIXES
-----

BASE:
- Fixes a potential data path hang by properly programming PMTX congestion
  threshold settings.
- Fixes a potential initialization error when accessing a configuration file
  stored on the flash.
- Fixes a regression where SGE resources can be miss-sized if iWARP is disabled.

ETH:
- Fixes a timing issue that would prevent CR4 links from coming up with some
  switches.

FOFCoE:
- Defers fcoe linkdown mailbox command handling till LOGO is sent.
- Updates vlan prio for all outstanding IOs during dcbx update.

ENHANCEMENTS
------------

BASE:
- Adds support for PAUSE OFF watchdog.
- Reports devlog access information in PCIE_FW_PF register 7.

ETH:
- Enhances segmentation offload to include VxLAN and Geneve.
- Adds PTP support.
- Adds new interface to allow the driver to query the VI rss table base
  addresses.
- Allows the driver to program the SGE ingrext contxt CongDrop field.

OFLD:
- Adds new interface for the driver to specify offloaded connections TCP snd
  and rcv scale factors.

iSCSI:
- Adds support for iscsi segmentatation offload (ISO).
- Adds support for iscsi t10-dif offload.

FOiSCSI:
- Sets FORCE_BIT for cut through processing for FOiSCSI.

FOFCoE:
- Adds support for FCoE BB6.
- Improves WRITE performance.

================================================================================
================================================================================

Version : 1.13.32.0
Date    : 03/25/2015
================================================================================

FIXES
-----

BASE:
- Fixes FW_CAPS_CONFIG_CMD return value on error (was positive instead of
   negative)
- Fixes FW_PARAMS_PARAM_DEV_FLOWC_BUFFIFO_SZ indication (was wrong on certain
   adapter configurations)
- Fixes config file based PL_TIMEOUT register programming

ETH:
- Fixes a potential EO UDP SEG header corruption
- Fixes an issue where 1000Base-X was not enabled correctly when using QSA
   modules

OFLD:
- Fixes timeout issue with half-open connections
- Fixes FW_FLOWC_WR processing when state is set to finwait1

FOFCoE:
- Fixes fcoe xchg leaks in linkdown/peer down path
- Fixes cleanup in FCoE linkdown and fixed buf timer flowid abuse
- Fixes fw crash by clearing fcf flowc during bye

FOiSCSI:
- Don't create a new tcp socket if ERL0 attempt has timed out.

ENHANCEMENTS
------------

BASE:
- Adds support for VFs on PFs 4 to 7
- Adds support for QPs/CQs on any physical and virtual function

ETH:
- Stops sending LACP frames on loopback interface
- Adds an AUTOEQU indication to CPL_SGE_EGR_UPDATE
- Adds support for CR4 links (BEAN/AEC on 40G TwinAx cables)

OFLD:
- Improves default settings of LAN and CLUSTER TCP timer settings
- Sends Negative Advice CPLs to software

FOISCSI:
- Adds IPv6 support for foiscsi. Keeps backward compatibility with
   old foiscsi drivers which doesn't support ipv6.

FOFCoE:
- Added fcoe debug support in flowc dump

================================================================================
================================================================================

Version : 1.12.25.0
Date    : 10/22/2014
================================================================================

FIXES
-----

BASE:
- Improves precision of the Weight Round Robing Traffic Management Algorithm
- Fixes an issue where the link would intermittently fail to come up
- Fixes an issue where adapters with an external PHY couldn't run at 100Mbps
- Fixes an issue where active optical cables were not recognized
- Fixes link advertising issues on T520-BT (speed and pause frames) that would
  cause the link to negotiate unexpected settings
- Forces link restart when auto-negotiation is disabled
- Fix an issue where pause frames wouldn't be fully disabled even if requested

ETH:
- Fixes NVGRE Segmentation Offload network header generation.

DCBX:
- Fixes an issue where some settings were not being sent to the switch
  correctly
- Fixes an issue where back-to-back DCBX port updates could get overwritten by
  FW
- Fixes a firmware crash on DCBX APP information request before link up

FOiSCSI:
- Fixes abort task leak in tmf response handling
- Fixes TCP RST handling while in iSCSI ERL0
- Fixes a firmware crash on BYE without INIT

ENHANCEMENTS
-------------

BASE:
- Adds link partner settings reporting when available
- Adds QSA support (in conjunction with QSA VPD)
- Adds T520-BT LED support
- Reports NOTSUPPORTED for modules with an unhandled identifier

DCBX:
- Adds version reporting (indicating which version FW is trying to negotiate)
- Adds IEEE support
- Reports LLDP time outs

FOiSCSI:
- Add support for multiple iSCSI DDP client
- Sends DHCP renew request when lease expires

================================================================================

22.2. T4 Firmware
+++++++++++++++++

Version : 1.14.4.0
Date    : 08/05/2015
================================================================================

FIXES
-----

BASE:
- Fixes a potential initialization error when accessing a configuration file
  stored on the flash.
- Initialize PCIE_DBG_INDIR_REQ.Enable to 0, as hardware failed to do so and
  register dumps could result in errors.

ETH:
- Fixes an issue that sometimes prevented the link from coming up in CR adapters.

ENHANCEMENTS
------------

BASE:
- Adds support for PAUSE OFF watchdog.
- Reports devlog access information in PCIE_FW_PF register 7.

ETH:
- Adds new interface to allow the driver to query the VI rss table base
  addresses.

OFLD:
- Adds new interface for the driver to specify offloaded connections TCP snd
  and rcv scale factors.

================================================================================
================================================================================

Version : 1.13.32.0
Date    : 03/25/2015
================================================================================

FIXES
-----

BASE:
- Fixes FW_CAPS_CONFIG_CMD return value on error (was positive instead of
    negative)
- Fixes FW_PARAMS_PARAM_DEV_FLOWC_BUFFIFO_SZ indication (was wrong on certain
    adapter configurations)
- Fixes config file based PL_TIMEOUT register programming

ETH:
- Fixes a potential EO UDP SEG header corruption

OFLD:
- Fixes timeout issue with half-open connections
- Fixes FW_FLOWC_WR processing when state is set to finwait1

FOiSCSI:
- Don't create a new tcp socket if ERL0 attempt has timed out.

ENHANCEMENTS
------------

ETH:
- Stops sending LACP frames on loopback interface
- Adds an AUTOEQU indication to CPL_SGE_EGR_UPDATE

OFLD:
- Improves default settings of LAN and CLUSTER TCP timer settings
- Sends Negative Advice CPLs to software

================================================================================
================================================================================

Version : 1.12.25.0
Date    : 10/22/2014
================================================================================

FIXES
-----

BASE:
- Improves precision of the Weight Round Robing Traffic Management Algorithm
- Forces link restart when auto-negotiation is disabled
- Fix an issue where pause frames wouldn't be fully disabled even if requested

DCBX:
- Fixes an issue where some settings were not being sent to the switch
  correctly
- Fixes an issue where back-to-back DCBX port updates could get overwritten by
  FW
- Fixes a firmware crash on DCBX APP information request before link up

FOiSCSI:
- Fixes abort task leak in tmf response handling
- Fixes TCP RST handling while in iSCSI ERL0
- Fixes a firmware crash on BYE without INIT

ENHANCEMENTS
------------

BASE:
- Adds link partner settings reporting when available
- Firmware now reports NOTSUPPORTED for modules with an unhandled identifier

DCBX:
- Adds version reporting (indicating which version FW is trying to negotiate)
- Adds IEEE support
- Reports LLDP time outs

FOiSCSI:
- Adds support for multiple iSCSI DDP clients
- Sends DHCP renew request when lease expires

================================================================================

Obtained from:	Chelsio Communications
MFC after:	2 weeks
Sponsored by:	Chelsio Communications
2015-08-05 19:45:11 +00:00
Navdeep Parhar
c7dbd80213 cxgbe(4): Update T4 and T5 firmwares to 1.14.2.0.
Obtained from:	Chelsio Communications
MFC after:	3 days
2015-07-14 08:02:05 +00:00
Gleb Smirnoff
cc4a90c445 Globally enable -fms-extensions when building kernel with gcc, and remove
this option from all modules that enable it theirselves.
  In C mode -fms-extensions option enables anonymous structs and unions,
allowing us to use this C11 feature in kernel. Of course, clang supports
it without any extra options.

Reviewed by:	dim
2015-02-17 19:27:14 +00:00
Navdeep Parhar
85dc477798 cxgbe(4): Add a minimal if_cxl module that pulls in the real driver as
a dependency.  This ensures "ifconfig cxl<n> ..." does the right thing
even when it's run with no driver loaded.

if_cxl.ko is the tiniest module in /boot/kernel.

MFC after:	2 weeks
2015-02-06 01:10:04 +00:00
Navdeep Parhar
7cf3e8e4c3 Make sure the compiler flag to get cxgbe(4) to compile with gcc is used
only when gcc is being used.  This is what r277225 should have been.

Suggested by:	dim@
2015-01-24 04:41:14 +00:00
Navdeep Parhar
cddd227c5f Make cxgbe(4) buildable with the gcc in base. 2015-01-16 01:28:28 +00:00
Navdeep Parhar
7951040f8a cxgbe(4): major tx rework.
a) Front load as much work as possible in if_transmit, before any driver
lock or software queue has to get involved.

b) Replace buf_ring with a brand new mp_ring (multiproducer ring).  This
is specifically for the tx multiqueue model where one of the if_transmit
producer threads becomes the consumer and other producers carry on as
usual.  mp_ring is implemented as standalone code and it should be
possible to use it in any driver with tx multiqueue.  It also has:
- the ability to enqueue/dequeue multiple items.  This might become
  significant if packet batching is ever implemented.
- an abdication mechanism to allow a thread to give up writing tx
  descriptors and have another if_transmit thread take over.  A thread
  that's writing tx descriptors can end up doing so for an unbounded
  time period if a) there are other if_transmit threads continuously
  feeding the sofware queue, and b) the chip keeps up with whatever the
  thread is throwing at it.
- accurate statistics about interesting events even when the stats come
  at the expense of additional branches/conditional code.

The NIC txq lock is uncontested on the fast path at this point.  I've
left it there for synchronization with the control events (interface
up/down, modload/unload).

c) Add support for "type 1" coalescing work request in the normal NIC tx
path.  This work request is optimized for frames with a single item in
the DMA gather list.  These are very common when forwarding packets.
Note that netmap tx in cxgbe already uses these "type 1" work requests.

d) Do not request automatic cidx updates every 32 descriptors.  Instead,
request updates via bits in individual work requests (still every 32
descriptors approximately).  Also, request an automatic final update
when the queue idles after activity.  This means NIC tx reclaim is still
performed lazily but it will catch up quickly as soon as the queue
idles.  This seems to be the best middle ground and I'll probably do
something similar for netmap tx as well.

e) Implement a faster tx path for WRQs (used by TOE tx and control
queues, _not_ by the normal NIC tx).  Allow work requests to be written
directly to the hardware descriptor ring if room is available.  I will
convert t4_tom and iw_cxgbe modules to this faster style gradually.

MFC after:	2 months
2014-12-31 23:19:16 +00:00
Warner Losh
df3394b3de Remove dependence on source tree options. Move all kernel module
options into kern.opts.mk and change all the places where we use
src.opts.mk to pull in the options. Conditionally define SYSDIR and
use SYSDIR/conf/kern.opts.mk instead of a CURDIR path. Replace all
instances of CURDIR/../../etc with STSDIR, but only in the affected
files.

As a special compatibility hack, include bsd.owm.mk at the top of
kern.opts.mk to allow the bare build of sys/modules to work on older
systems. If the defaults ever change between 9.x, 10.x and current for
these options, however, you'll wind up with the host OS' defaults
rather than the -current defaults. This hack will be removed when
we no longer need to support this build scenario.

Reviewed by: jhb
Differential Revision: https://phabric.freebsd.org/D529
2014-08-11 14:50:49 +00:00
Warner Losh
aeaed50898 Move most of the 15 variations on generating opt_inet.h and
opt_inet6.h into kmod.mk by forcing almost everybody to eat the same
dogfood. While at it, consolidate the opt_bpf.h and opt_mroute.h
targets here too.
2014-08-04 22:37:02 +00:00
Navdeep Parhar
21b787b81a List one file per line in the Makefiles. This makes it easier to read
diffs when a file is added or removed.

MFC after:	2 weeks
2014-08-01 01:53:39 +00:00