cxgbe: handle vlan PF restrictions

Co-Authored-by: Navdeep Parhar <np@FreeBSD.org>
MFC after: 2 weeks
Sponsored by: Orange Business Services
Differential Revision: https://reviews.freebsd.org/D45428

cxgbe(4): Query TPCHMAP once and not once per port.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Rename rx_c_chan to rx_chan.

It is the equivalent of tx_chan but for receive so rx_chan is a better
name. Initialize both using helper functions and make sure both are
displayed in the sy

cxgbe(4): Rename rx_c_chan to rx_chan.

It is the equivalent of tx_chan but for receive so rx_chan is a better
name. Initialize both using helper functions and make sure both are
displayed in the sysctl MIB.

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Initialize mps_bg_map to an invalid value if it's not known.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Do not read hardware registers to determine the number of ports.

PORTVEC obtained from the firmware is the authoritative source of this
information, and nports (calculated from PORTVEC) is

cxgbe(4): Do not read hardware registers to determine the number of ports.

PORTVEC obtained from the firmware is the authoritative source of this
information, and nports (calculated from PORTVEC) is available by the
time t4_port_init runs.

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Shared code update to deal with partial failure in query_params.

Obtained from: Chelsio Communications
MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Add missing description for a port type.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Retire t4_intr_clear.

The firmware clears the interrupts already and it has a better idea of
exactly what to clear for which generation of the ASIC. There is no
need for the driver to get

cxgbe(4): Retire t4_intr_clear.

The firmware clears the interrupts already and it has a better idea of
exactly what to clear for which generation of the ASIC. There is no
need for the driver to get involved.

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Add a helper function to locate MPS/MAC registers.

These register blocks are at different locations in different chips.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Remove tx_modq lookup table.

The driver always uses the same modulation queue as the channel and the
table is unnecessary.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Use the correct size for the CIM LA on the T6.

The logic analyzer in the T6 CIM block has a different capture size than
previous chips.

MFC after: 1 week
Sponsored by: Chelsio Communicati

cxgbe(4): Use the correct size for the CIM LA on the T6.

The logic analyzer in the T6 CIM block has a different capture size than
previous chips.

MFC after: 1 week
Sponsored by: Chelsio Communications

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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cxgbe(4): Decode and display some more bits in the PL interrupt handler.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Handle FORCE_FEC in pcaps correctly.

The firmware doesn't report FORCE_FEC in pcaps if the transceiver
plugged in at that time does not support a speed that may use FEC. It
is incorrect f

cxgbe(4): Handle FORCE_FEC in pcaps correctly.

The firmware doesn't report FORCE_FEC in pcaps if the transceiver
plugged in at that time does not support a speed that may use FEC. It
is incorrect for the driver to assume that the FORCE_FEC value it read
during attach (in init_link_config) is permanent. Instead, it should
check pcaps just before issuing the L1CFG command.

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Changes to the fatal error handler.

* New error_flags that can be used from the error ithread and elsewhere
without a synch_op.
* Stop the adapter immediately in t4_fatal_err but defer m

cxgbe(4): Changes to the fatal error handler.

* New error_flags that can be used from the error ithread and elsewhere
without a synch_op.
* Stop the adapter immediately in t4_fatal_err but defer most of the
rest of the handling to a task. The task is allowed to sleep, unlike
the ithread. Remove async_event_task as it is no longer needed.
* Dump the devlog, CIMLA, and PCIE_FW exactly once on any fatal error
involving the firmware or the CIM block. While here, dump some
additional info (see dump_cim_regs) for these errors.
* If both reset_on_fatal_err and panic_on_fatal_err are set then attempt
a reset first and do not panic the system if it is successful.

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Fix regression in previous attempt to fix FEC selection.

Fixes: f3c2987f2f5c91f0801fa8bbf9e1bc09d91aeb46
MFC after: 3 days
Sponsored by: Chelsio Communications

cxgbe(4): Fix "set but not used [-Wunused-but-set-variable]" warnings.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): Do not request an FEC that is invalid for the requested speed.

This eliminates error messages like this from the driver when running at
50Gbps with 100G cables:
[3726] cc0: l1cfg failed: 7

cxgbe(4): Do not request an FEC that is invalid for the requested speed.

This eliminates error messages like this from the driver when running at
50Gbps with 100G cables:
[3726] cc0: l1cfg failed: 71
[4407] cc0: l1cfg failed: 71

Note that link comes up anyway with or without this change.

Reported by: Suhas Lokesha @ Chelsio
MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Fix stats collection for ports with port_id != tx_chan

This fixes a driver panic during stats collection when a port's id does
not match its tx channel. The bug affected only the T580 car

cxgbe(4): Fix stats collection for ports with port_id != tx_chan

This fixes a driver panic during stats collection when a port's id does
not match its tx channel. The bug affected only the T580 card running
with a non-default VPD.

Reported by: Suhas Lokesha @ Chelsio
MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Change the way t4_shutdown_adapter brings the link(s) down.

Modify the GPIO pins only on the Base-T cards and even there drive all
of them low instead of putting them in hi-z state. For t

cxgbe(4): Change the way t4_shutdown_adapter brings the link(s) down.

Modify the GPIO pins only on the Base-T cards and even there drive all
of them low instead of putting them in hi-z state. For the rest (this
is the common case), directly power off the PLLs of the high speed
serdes. This is the simplest method that does not involve or conflict
with the firmware but still works with all T4-T6 cards regardless of
what's plugged into the port.

This fixes a problem where the peer wouldn't always see a link down if
it is connected to the device using a -CR4 copper cable.

MFC after: 3 weeks
Sponsored by: Chelsio Communications

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cxgbe(4): Keep link configuration compatible with really old firmwares.

MFC after: 1 week
Sponsored by: Chelsio Communications

cxgbe(4): internal knob for flexible control over FEC selection.

Recent firmwares have support for autonomous FEC selection and a "force"
knob to let the driver control this behavior (or not) in a f

cxgbe(4): internal knob for flexible control over FEC selection.

Recent firmwares have support for autonomous FEC selection and a "force"
knob to let the driver control this behavior (or not) in a fine grained
manner. This change adds a driver knob so that all the different ways of
configuring the link FEC can be exercised. Note that this controls the
internal driver/firmware interaction for link configuration and is not
meant for general use.

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): sysctl to track the last L1_CFG32 requested by the driver.

dev.<port>.<inst>.rcaps

# sysctl dev.cc | grep rcaps
dev.cc.1.rcaps: 581107776
dev.cc.0.rcaps: 582156414

MFC after: 1 week
S

cxgbe(4): sysctl to track the last L1_CFG32 requested by the driver.

dev.<port>.<inst>.rcaps

# sysctl dev.cc | grep rcaps
dev.cc.1.rcaps: 581107776
dev.cc.0.rcaps: 582156414

MFC after: 1 week
Sponsored by: Chelsio Communications

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cxgbe(4): Skip a few more T5/T6 registers during a regdump.

These registers have read side effects and a read at just the right
(wrong?) time can trash some internal hw state.

Obtained from: Chelsi

cxgbe(4): Skip a few more T5/T6 registers during a regdump.

These registers have read side effects and a read at just the right
(wrong?) time can trash some internal hw state.

Obtained from: Chelsio Communications
MFC after: 1 week
Sponsored by: Chelsio Communications

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