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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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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isp: Remove unused variable.

Some code reorganization.

- Remove code duplication by adding two new functions to execute prepared
queue entry via either mbox or request queue and wait for result.
- Since the new function execu

Some code reorganization.

- Remove code duplication by adding two new functions to execute prepared
queue entry via either mbox or request queue and wait for result.
- Since the new function executing via request queue sleeps any way, make
it sleep also in case of overflows or handle shortages. It should make it
more reliable and less affecting other less flexible request queue users.
- Turn isp_target_put_entry() into not target-specific isp_send_entry().
- Make handling of responses with control handles more universal.
- Move RQSTYPE_RPT_ID_ACQ handling into new function.
- Inline isp_handle_other_response(), becoming trivial after above.
- Clean the list of IOCBs from pre-24xx ones.

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Some minor FCoE bits I had lying around.

Remove some more dead code from pre-24xx.

Implement request queue overflow protection.

Before this change in case of request queue overflow driver just froze the
device queue for 100ms to retry after. It was pretty bad for performance.
Thi

Implement request queue overflow protection.

Before this change in case of request queue overflow driver just froze the
device queue for 100ms to retry after. It was pretty bad for performance.
This change introduces SIM queue freezing when free space on the request
queue drops below 255 entries (worst case of maximum I/O size S/G list),
checking for a chance to release it on I/O completion. If the queue still
get overflowed somehow, the old mechanism is still in place, just with
delay reduced to 10ms.

With the earlier queue length increase overflows should not happen often,
but it is still easily reachable on synthetic tests.

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Make handlers and atpds overflows unlikely.

- Allocate 256 handlers more than payload commands for management purposes.
- Increase maximum number of handlers from 8K to 16K by tuning the format.

Make handlers and atpds overflows unlikely.

- Allocate 256 handlers more than payload commands for management purposes.
- Increase maximum number of handlers from 8K to 16K by tuning the format.
- Just to be safe limit the number of payload commands to 16K - 256.
- Limit number of target exchanges in mixed mode to the number of atpds.
- If we still somehow get out of atpds -- return BUSY, since we really are.

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Cleanup DMA handling.

- Make isp_start() to set all the IOCB fields aside of S/G list, removing
extra information from isp_send_cmd(), now only doing S/G lists and sending.
- Turn DMA setup/free f

Cleanup DMA handling.

- Make isp_start() to set all the IOCB fields aside of S/G list, removing
extra information from isp_send_cmd(), now only doing S/G lists and sending.
- Turn DMA setup/free from being card and PCI-specific into OS-specific,
instead add new card-specific method for isp_send_cmd(). Previously this
function was a monster handling all the cards.
- Remove double error code translation.

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Remove parallel SCSI and 1/2Gb FC support from isp(4).

This removes 288KB (36%) of the driver code and zillions of hacks and
workarounds, making single driver uniformly support several different
gen

Remove parallel SCSI and 1/2Gb FC support from isp(4).

This removes 288KB (36%) of the driver code and zillions of hacks and
workarounds, making single driver uniformly support several different
generations of hardware interfaces, not counting minor card variations.
After years of the hopeless fight, I don't think it worth to continue
support for hardware obsolete for 15-20 years. Instead much cleaner
now code should allow to move forward toward better locking, multiple
queues and other cool features.

All the remaining Qlogic cards starting from 4Gb 24xx to 32Gb 27xx use
the same hardware/firmware interface with minor incremental improvements,
so it seems to be a good new starting point. Except one PCI-X model all
all of them are PCIe and so still usable in modern systems.

Discussed with: ken, scottl, jpaetzel, imp
Relnotes: yes

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sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/dev: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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Switch fabric scans from GID_FT to GID_PT+GFF_ID/GFT_ID.

Instead of using GID_FT SNS request to get list of registered FCP ports,
use GID_PT to get list of all Nx_Ports, and then use GFF_ID and/or G

Switch fabric scans from GID_FT to GID_PT+GFF_ID/GFT_ID.

Instead of using GID_FT SNS request to get list of registered FCP ports,
use GID_PT to get list of all Nx_Ports, and then use GFF_ID and/or GFT_ID
requests to find whether they are FCP and target capable.

The problem with old approach is that GID_FT does not report ports without
FC-4 type registered. In particular it was impossible to boot OS from
FreeBSD FC target using QLogic FC BIOS, since one does not register FC-4
type even on new cards and so ignored by old code as incompatible.

As a side bonus this allows initiator to skip pointless logins to other
initiators by fetching that information from SNS instead.

In case some switches do not implement GFF_ID/GFT_ID correctly, add sysctls
to disable that functionality. I handled broken GFF_ID of my Brocade 200E,
but there may be other switches with different bugs.

Linux also uses GID_PT, but GFF_ID is disabled by default there, and GFT_ID
is not supported.

Sponsored by: iXsystems, Inc.

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Unify initiator and target DMA setup and command sending.

The code is so alike that it is pointless to keep it separate.

MFC after: 2 weeks

Remove dead remnants of SPI target.

MFC after: 2 weeks

Improvements around attach, reset and detach.

This change fixes DMA resource leak on driver unload. Also it removes
DMA resources allocation for hardcoded number of requests before fetching
the rea

Improvements around attach, reset and detach.

This change fixes DMA resource leak on driver unload. Also it removes
DMA resources allocation for hardcoded number of requests before fetching
the real number from firmware. Also it prepares ground for more flexible
IRQs allocation according to firmware capabilities.

MFC after: 2 weeks

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Completely remove broken now autologin port flag.

Firmware automatically logs in only to local loop ports, and those ports
can be easily identified without extra flag by zero domain and area IDs.

M

Completely remove broken now autologin port flag.

Firmware automatically logs in only to local loop ports, and those ports
can be easily identified without extra flag by zero domain and area IDs.

MFC after: 1 week

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Extract virtual port address from RQSTYPE_RPT_ID_ACQ.

This should close the race between request arriving on new target mode
virtual port and its scanner thread finally fetch its address for request

Extract virtual port address from RQSTYPE_RPT_ID_ACQ.

This should close the race between request arriving on new target mode
virtual port and its scanner thread finally fetch its address for request
routing.

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Polish debugging IOCB dumping.

Add few more missing cases, unify byte order.

MFC after: 1 month

Register symbolic port/node names in FC name server.

This is cosmetics that simplifies identification of new ports on FC switch.

It would be good to use target name from CTL here instead of hostnam

Register symbolic port/node names in FC name server.

This is cosmetics that simplifies identification of new ports on FC switch.

It would be good to use target name from CTL here instead of hostname, but
it is not passed here through CAM now.

MFC after: 2 weeks

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Make virtual ports control asynchronous.

Before this change virtual ports control IOCBs were executed synchronously
via Execute IOCB mailbox command. It required exclusive use of scratch
space of d

Make virtual ports control asynchronous.

Before this change virtual ports control IOCBs were executed synchronously
via Execute IOCB mailbox command. It required exclusive use of scratch
space of driver and mailbox registers of the hardware. Because of that
shared resources use this code could not really sleep, having to spin for
completion, blocking any other operation.

This change introduces new asynchronous design, sending the IOCBs directly
on request queue and gracefully waiting for their return on response queue.
Returned IOCBs are identified with unified handle space from r292725.

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Unify handles allocation for initiator and target IOCBs.

I am not sure why this was split long ago, but I see no reason for it.
At this point this unification just slightly reduces memory usage, but

Unify handles allocation for initiator and target IOCBs.

I am not sure why this was split long ago, but I see no reason for it.
At this point this unification just slightly reduces memory usage, but
as next step I plan to reuse shared handle space for other IOCB types.

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Clear virtual port's port database when disabling it.

Previously it was done only on full chip reinit, that caused old ports
resurrect in case of virtual port reenabling.

Update isp_put_icb_2400() for new structure fields.

One more round of port scanner rewrite.

- Make scan aborted by event restart immediately and infinitely.
- Improve handling of some loop events from firmware.
- Remove loop down timer, adding its

One more round of port scanner rewrite.

- Make scan aborted by event restart immediately and infinitely.
- Improve handling of some loop events from firmware.
- Remove loop down timer, adding its functionality to scanner thread.
- Some more unification and simplification.

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Fix target mode support for Qlogic 2200 FC adapters.

Now target mode works for all supported FC adapters except ancient 2100,
which is not tested.