scsi: arcmsr: Update driver version to v1.51.00.14-20230915

Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/514898a472dfdf0502afe27d127ed5145a1fb915.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Support new PCI device IDs 1883 and 1886

Add support for Areca RAID controllers with PCI device IDs 1883 and 1886.

Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/7732e743eaad57681b1552eec9c6a86c76dbe459.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Support new RAID controller ARC-1688

Add support for new Areca RAID controller ARC-1688

Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/110bdc873497d3d5e090b908fb159b6155bb3a2b.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version

Update driver version to v1.50.00.13-20230206.

Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/8022803536481106bbeca2f8eb33712668f41217.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Add driver proc_name

Add driver proc_name.

Signed-off-by: ching Huang <ching2048@areca.com.tw>
Link: https://lore.kernel.org/r/045a0b360bd963987d9be08c1f0f785b47724caf.camel@areca.com.tw
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Switch to attribute groups

struct device supports attribute groups directly but does not support
struct device_attribute directly. Hence switch to attribute groups.

Link: https://lore.kernel.org/r/20211012233558.4066756-13-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version to v1.50.00.05-20210429

Update driver version to v1.50.00.05-20210429.

Link: https://lore.kernel.org/r/d0c6dc6431f0e46db6583dc0d04d7983b420d4da.camel@areca.com.tw
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version to v1.50.00.04-20210414

Update driver version to v1.50.00.04-20210414.

Link: https://lore.kernel.org/r/1ca5474a5c6fea59bf13cdf84f7bd17f0b20f562.camel@areca.com.tw
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Configure the default command timeout value

Allow configuring the default command timeout value for devices attached to
arcmsr controllers.

Link: https://lore.kernel.org/r/27c0cda7fd103f05021adaf67490e9298ed5cc3f.camel@areca.com.tw
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version to v1.50.00.02-20200819

Update driver version to v1.50.00.02-20200819.

Link: https://lore.kernel.org/r/b41f9af781bc36f4e5f82fccabc86ebbd0e587f8.camel@areca.com.tw
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Add support for ARC-1886 series RAID controllers

Add support for ARC-1886 series RAID controllers.

[mkp: apply zeroday build warning fixes]

Link: https://lore.kernel.org/r/78ae03d0ac05054c721cc3a94f41f9e656a5e176.camel@areca.com.tw
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Fix device hot-plug monitoring timer stop

Fix device hot-plug monitoring timer stop.

Link: https://lore.kernel.org/r/969213d4f124e230c3febc01e2b1db291bf4585c.camel@areca.com.tw
Signed-off-by: ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version to v1.40.00.10-20190116

From Ching Huang <ching2048@areca.com.tw>

Update driver version to v1.40.00.10-20190116.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version to v1.40.00.10-20181217

From Ching Huang <ching2048@areca.com.tw>

Update driver version to v1.40.00.10-20181217

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update arcmsr_alloc_ccb_pool for ccb buffer address above 4GB

From Ching Huang <ching2048@areca.com.tw>

Update arcmsr_alloc_ccb_pool for ccb buffer address above 4GB

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Rename acb structure member roundup_ccbsize to ioqueue_size

From Ching Huang <ching2048@areca.com.tw>

Rename acb structure member roundup_ccbsize to ioqueue_size

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version to v1.40.00.09-20180709

Update driver version to v1.40.00.09-20180709

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Change driver version to v1.40.00.05-20180309

Change driver version to v1.40.00.05-20180309

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Rename ACB_F_BUS_HANG_ON to ACB_F_ADAPTER_REMOVED for adapter hot-plug

Rename ACB_F_BUS_HANG_ON to ACB_F_ADAPTER_REMOVED for adapter hot-plug.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Update driver version to v1.40.00.04-20171130

Update driver version to v1.40.00.04-20171130

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Adjust whitespace

Adjust tabs and whitespace.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Add a function to set date and time to firmware

Add a function arcmsr_set_iop_datetime and driver option set_date_time
to set date and time to firmware.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Add ACB_F_MSG_GET_CONFIG to acb->acb_flags

Add ACB_F_MSG_GET_CONFIG to acb->acb_flags for for message interrupt
checking before schedule work for get device map.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Add driver option cmd_per_lun

Add driver option cmd_per_lun to set host->cmd_per_lun value by user.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Add driver option host_can_queue

Add driver option host_can_queue to set host->can_queue value by
user. It's value expands up to 1024.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: replace constant ARCMSR_MAX_FREECCB_NUM

Replace constant ARCMSR_MAX_FREECCB_NUM by variable acb->maxFreeCCB that
was received from firmware.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Increase host controller command queue depth

Update ARCMSR_MAX_OUTSTANDING_CMD and ARCMSR_MAX_FREECCB_NUM to 1024.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Add code for ACB_ADAPTER_TYPE_E

Add code for ACB_ADAPTER_TYPE_E to support new adapter ARC-1884.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Redefine ACB_ADAPTER_TYPE_A, _B, _C, _D

Redefine ACB_ADAPTER_TYPE_A, _B, _C, _D and subsequent changes.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

scsi: arcmsr: Use pci_alloc_irq_vectors

Switch the arcmsr driver to use pci_alloc_irq_vectors. We need to two
calls to pci_alloc_irq_vectors as arcmsr only supports multiple MSI-X
vectors, but not multiple MSI vectors.

Otherwise this cleans up a lot of cruft and allows to use a common
request_irq loop for irq types, which happens to only iterate over a
single line in the non MSI-X case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Ching Huang <ching2048@areca.com.tw>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

arcmsr: change driver version to v1.30.00.22-20151126

Change driver version to v1.30.00.22-20151126

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

arcmsr: changes driver version number

Changes driver version number.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

arcmsr: adds code to support new Areca adapter ARC1203

Support Areca's new PCIe to SATA RAID adapter ARC1203.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

arcmsr: make code more readable

[mkp: Fixed checkpatch whitespace warning]

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

arcmsr: simplify ioctl data read/write

Signed-off-by: Ching Huang <ching 2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

arcmsr: add support new adapter ARC12x4 series

Add code to support the new Areca Raid ARC12x4 series adapters.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

arcmsr: fix ioctl data read/write error for adapter type C

Rewrite ioctl entry and its relate function. This patch fix ioctl data
read/write error and change data I/O access from byte to Dword.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

arcmsr: revise allocation of second dma_coherent_handle for type B

This modification is for consistency with upcoming adapter type D.
Both adapter type B and D have similar H/W and S/W structure.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

arcmsr: rename functions and variables

Rename some variable and function names for readability and consistency.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

arcmsr: limit max. number of SCSI command request

This patch limits the max. number of SCSI commmand request to avoid command
overflow.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

arcmsr: add code to support MSI-X and MSI interrupt

This patch adds code to support MSI and MSI-X interrupt.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

arcmsr: fix command timeout under heavy load

This patch rewrites the interrupt service routine relate function to fix
a command timeout under heavy controller load.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

[SCSI] arcmsr: Fix the issue of system hangup after commands timeout on ARC-1200

[jejb: fix up patch problems and checkpatch.pl issues]
Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

[SCSI] SCSI: Support Type C RAID controller

1. To support Type C RAID controller, ACB_ADAPTER_TYPE_C, i.e. PCI device
ID: 0x1880.
Signed-off-by: Nick Cheng< nick.cheng@areca.com.tw >
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

[SCSI] arcmsr: Support 1024 scatter-gather list entries and improve AP while FW trapped and behaviors of EHs

1. To support 4M/1024 scatter-gather list entry, reorganize struct
ARCMSR_CDB and struct CommandControlBlock
2. To modify arcmsr_probe
3. In order to help fix F/W issue, add the driver mode for type B card
4. To improve AP's behavior while F/W resets
5. To unify struct MessageUnit_B's members' naming in all OS drivers'
6. To improve error handlers, arcmsr_bus_reset(), arcmsr_abort()
7. To fix the arcmsr_queue_command() in bus reset stage, just let the
commands pass down to FW, don't block

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

[SCSI] arcmsr: Support HW reset for EH and polling scheme for scsi device

1. To support instantaneous report for SCSI device existing by periodic
polling
2. In arcmsr_iop_xfer(), inform AP of F/W's deadlock state to prevent
endless waiting
3. To block the coming SCSI command while the driver is handling bus reset
4. To support HW reset in bus reset error handler

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

SCSI: convert struct class_device to struct device

It's big, but there doesn't seem to be a way to split it up smaller...

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Roland Dreier <rolandd@cisco.com>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

[SCSI] arcmsr: fix iounmap error for Type B adapter

The Type B Adapter teardown does iounmap on pointers subtracted by a
constant offset. Since the offset is in bytes, we need the pointers to
be of type void * not uint32_t * so the subtraction is done in the
correct units and we iounmap the correct area.

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] arcmsr: update version and changelog

The fix up from Daniel Drake for replacing GFP_DMA with something
more sensible has gone in here:

commit 69e562c234440fb7410877b5b24f4b29ef8521d1
Author: Daniel Drake <dsd@gentoo.org>
Date: Wed Feb 20 13:29:05 2008 +0000

[SCSI] arcmsr: fix message allocation

add a change log and update the version for this.

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

[SCSI] arcmsr: updates (1.20.00.15)

- add arcmsr_enable_eoi_mode()and readl(reg->iop2drv_doorbell_reg) in
arcmsr_handle_hbb_isr() on adapter Type B in case of the doorbell
interrupt clearance is cached

- add conditional declaration for arcmsr_pci_error_detected() and
arcmsr_pci_slot_reset

- check if the sg list member number exceeds arcmsr default limit in
arcmsr_build_ccb()

- change the returned value type of arcmsr_build_ccb()from "void" to
"int" returns FAILED in arcmsr_queue_command()

- modify arcmsr_drain_donequeue() to ignore unknown command and let
kernel process command timeout. This could handle IO request violating
maximum segments, i.e. Linux XFS over DM-CRYPT. Thanks to Milan Broz's
comments <mbroz@redhat.com>

- fix the release of dma memory for type B in arcmsr_free_ccb_pool()

- fix the arcmsr_polling_hbb_ccbdone()

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Cc: Milan Broz <mbroz@redhat.com>
Cc: <thenzl@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

deal with resource allocation bugs in arcmsr

a) for type B we should _not_ iounmap() acb->pmu; it's not ioremapped.
b) for type B we should iounmap() two regions we _do_ ioremap.
c) if ioremap() fails, we need to bail out (and clean up).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

trivial annotations in arcmsr

driver still has serious portability problems

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

[SCSI] arcmsr: 1.20.00.15: add SATA RAID plus other fixes

Description:
** support ARC1200/1201/1202 SATA RAID adapter, which is named
ACB_ADAPTER_TYPE_B
** modify the arcmsr_pci_slot_reset function
** modify the arcmsr_pci_ers_disconnect_forepart function
** modify the arcmsr_pci_ers_need_reset_forepart function 

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

[SCSI] areca: improve driver stability and compatibility

Description:

1. Implement PCI-Express error recovery function and AER
capability, especially thanks to Yanmin Zhang's openhanded help
about AER

2. Implement the selection of ARCMSR_MAX_XFER_SECTORS_B=4096 if
firmware version is latter than 1.42

3. Add arcmsr_done4_abort_postqueue in arcmsr_iop_reset function
to improve the stability as hot-unplug/plug

4. Modify the ISR, arcmsr_interrupt routine, to prevent the
inconsistency with sg_mod driver if application directly calls
the arcmsr driver w/o passing through scsi midlayer

Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
[jejb: unused variable removal]
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

[SCSI] arcmsr: initial driver, version 1.20.00.13

arcmsr is a driver for the Areca Raid controller, a host based RAID
subsystem that speaks SCSI at the firmware level.

This patch is quite a clean up over the initial submission with
contributions from:

Randy Dunlap <rdunlap@xenotime.net>
Christoph Hellwig <hch@lst.de>
Matthew Wilcox <matthew@wil.cx>
Adrian Bunk <bunk@stusta.de>

Signed-off-by: Erich Chen <erich@areca.com.tw>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>