MFC 295778,296249,296333,296383,296471,296478,296481,296485,296488-296491,

296493-296496,296544,296710-296711,297863,299685: Catch up to changes to
the internal shared code.

Note that this merge includes two different firmware updates, but the
effective change is to update to the last version (1.15.37.0).  As such,
I've trimmed the log message of the first update (1.15.28.0).

In addition, the M_WAIT macro added in t4_regs.h had to be renamed to
CXGBE_M_WAIT to avoid a collision on 10.x that is not present on 11.

295778:
cxgbe: catch up with the latest hardware-related definitions.

296249:
cxgbe(4): Update T5 and T4 firmwares to 1.15.28.0.

296333:
cxgbe(4): First of many changes to reduce diffs with internal shared
code:

- Rename some CamelCase variables.
- s/t4_link_start/t4_link_l1cfg/g
- Pull in t4_get_port_type_description.
- Move t4_wait_op_done to t4_hw.c.
- Flip the order of the RDMA stats.
- Remove unsused function t4_iq_start_stop.
- Move t4_wait_op_done and t4_wait_op_done_val to t4_hw.c

296383:
cxgbe(4): Very basic T6 awareness.  This is part of ongoing work to
update to the latest internal shared code.

- Add a chip_params structure to keep track of hardware constants for
  all generations of Terminators handled by cxgbe.
- Update t4_hw_pci_read_cfg4 to work with T6.
- Update the hardware debug sysctls (hidden within dev.<tNnex>.<n>.misc.*) to
  work with T6.  Most of the changes are in the decoders for the CIM
  logic analyzer and the MPS TCAM.
- Acquire the regwin lock around indirect register accesses.

296471:
cxgbe(4): Updated register dumps.

- Get the list of registers to read during a regdump from the shared
  code instead of the OS specific code.  This follows a similar move
  internally.  The shared code includes the list for T6.

- Update cxgbetool to be able to decode T5 VF, T6, and T6 VF register
  dumps (and catch up with some updates to T4 and T5 register decode).

296478:
cxgbe(4): Add a struct sge_params to store per-adapter SGE parameters.
Move the code that reads all the parameters to t4_init_sge_params in the
shared code.  Use these per-adapter values instead of globals.

296481:
cxgbe(4): Overhaul the shared code that deals with the chip's TP block,
which is responsible for filtering and RSS.

Add the ability to use filters that match on PF/VF (aka "VNIC id") while
here.  This is mutually exclusive with filtering on outer VLAN tag with
Q-in-Q.

296485:
cxgbe(4): Update the interrupt handlers for hardware errors.

296488:
cxgbe(4): Updates to mailbox routines in the shared code.

296489:
cxgbe(4): Updates to the shared routines that deal with the serial EEPROM,
flash, and VPD.

296490:
cxgbe(4): Remove __devinit and SPEED_<foo> as part of catch up with
internal shared code.

296491:
cxgbe(4): Updates to shared routines that get/set various parameters via
the firmware.

296493:
cxgbe(4): Use t4_link_down_rc_str in shared code to decode the reason
the link is down, instead of doing it in OS specific code.

296494:
cxgbe(4): Many new functions in the shared code, unused at this time.

296495:
cxgbe(4): Fix t4_tp_get_rdma_stats.

296496:
cxgbe(4): Minor updates to the shared routines that deal with firmware images.

296544:
cxgbe(4): Reshuffle and rototill t4_hw.c, solely to reduce diffs with
the internal shared code.

296710:
cxgbe(4): Catch up with the latest list of card capabilities as reported
by the firmware.

296711:
cxgbe(4): Fix typo in previous commit.

297863:
Rename the 'M_B' macro in t4_regs.h to 'CXGBE_M_B'.

This fixes a conflict with the M_B macro in powerpc's
<machine/db_machdep.h> exposed by the recent addition of DDB commands
to the cxgbe driver.

299685:
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.
================================================================================

Sponsored by:	Chelsio Communications

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