Commit Graph

78 Commits

Author SHA1 Message Date
Andriy Gapon
f28ecf2b63 add mrsas_shutdown method
It should be safer to flush controller and disk caches on the shutdown.
And to gracefully shut down the controller as well.
It seems that the Linux driver has been doing that for a long time.

Discussed with:	scottl
Reviewed by:	imp, Sumit Saxena <sumit.saxena@broadcom.com>
		(both earlier version)
MFC after:	3 weeks
Sponsored by:	Panzura
Differential Revision: https://reviews.freebsd.org/D19817
2019-05-23 12:51:13 +00:00
Conrad Meyer
e2e050c8ef Extract eventfilter declarations to sys/_eventfilter.h
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.

EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).

As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions.  The remainder of the patch addresses
adding appropriate includes to fix those files.

LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).

No functional change (intended).  Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed.  __FreeBSD_version has been bumped.
2019-05-20 00:38:23 +00:00
Kashyap D Desai
0298863e63 Update driver version to 07.709.04.00-fbsd
Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  Ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2019-03-12 09:29:46 +00:00
Kashyap D Desai
54f784f59a Allocated MFI frames should be same as MPT frames reserved for DCMDs
Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  Ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2019-03-12 09:29:01 +00:00
Kashyap D Desai
5437c8b88e fw_outstanding"(outstanding IOs at firmware level) counter gets screwed up when R1 fastpath
writes are running. Some of the cases which are not handled properly in driver are:

1. With R1 fastpath supported, single write from CAM layer can consume 2 MPT frames
at driver/firmware level for fastpath qualification(if fw_outstanding < controller Queue Depth).
Due to this driver has to throttle IOs coming from CAM layer as well as second fastpath
write(of R1 write) against Adapter Queue Depth.
If "fw_outstanding" reaches to adapter queue depth, driver should return IOs from CAM layer with
device busy status.While allocating second MPT frame(corresponding to R1 FP write) also, driver
should ensure fw_outstanding should not exceed adapter QD.

2. For R1 fastpath writes completion, driver decrements "fw_oustanding" counter without
really returning MPT frame to free pool. It may cause IOs(with heavy IOs running, consuming whole
adapter Queue Depth) consuming MPT frames reserved for DCMDs(management commands) and
DCMDs(internal and sent by application) not getting MPT frame will start failing.

Below is one test case to hit the issue described above-
1. Run heavy IOs (outstanding IOs should hit adapter Queue Depth).
2. Run management tool (Broadcom's storcli tool) querying adapter in loop (run command- "storcli64 /c0 show" in loop).
3. Management tool's requests would start failing due to non-availability of free MPT frames as all frames would be consumed by IOs.

Fix: Increment/decrement of "fw_outstanding" counter should be in sync with MPT frame get/return.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  Ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2019-03-12 09:24:58 +00:00
Kashyap D Desai
8c58ee6f5b Driver version upgrade.
Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-26 10:48:39 +00:00
Kashyap D Desai
e315cf4dc4 Problem statement:
Due to hardware errata in Aero controllers, reads to certain
fusion registers could intermittently return all zeroes.
This behavior is transient in nature and subsequent reads will return
valid value.

Fix:
For Aero controllers, any read will retry the read operations
from certain registers for maximum three times, if read returns zero.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-26 10:47:52 +00:00
Kashyap D Desai
b518670c21 This patch will add support for 32 bit atomic request descriptor for Aero adapters.
For Aero adapters-
1. Driver will use 32 bit atomic descriptor to fire IOs and DCMDs.
2. Driver will use 64 bit request descriptor to fire IOC INIT.
3. If Aero firmware supports 32 bit atomic descriptor, then only driver will use it
otherwise driver will use 64 bit request descriptor.

For rest of adapters(Ventura, Invader and Thunderbolt), driver will use 64 bit request
descriptors only.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-26 10:47:08 +00:00
Kashyap D Desai
2909aab4cf This patch will add support for latest generation MegaRAID adapters- Aero(39xx).
Driver will throw a warning message when a Configurable secure type controller is
encountered.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-26 10:46:23 +00:00
Kashyap D Desai
92a1d56ccc Compilation failure on ppc and mips due to Revision 342066.
Adding extra memset on chain frame.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 10:49:48 +00:00
Kashyap D Desai
3fa18dc335 Driver version upgrade 07.708.02.00-fbsd
Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:06:39 +00:00
Kashyap D Desai
56d91e4964 This patch will increase debug level as current logging level has
very minimal prints and even few important messages will not get logged.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:05:49 +00:00
Kashyap D Desai
e80341d50f Change IOC INIT wait time to 180 secs to keep it inline with timeout
used by internal DCMDs.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:05:01 +00:00
Kashyap D Desai
3d27317677 This patch will add support for NVME PRPs creation by driver for fastpath
capable IOs. NVME specification supports specific type of scatter gather list
called as PRP (Physical Region Page) for IO data buffers. Since NVME drive is
connected behind SAS3.5 tri-mode adapter, MegaRAID driver/firmware has to convert
OS SGLs in native NVMe PRP format. For IOs sent to firmware, MegaRAID firmware
does this job of OS SGLs to PRP translation and send PRPs to backend NVME device.
For fastpath IOs, driver will do this OS SGLs to PRP translation.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:04:16 +00:00
Kashyap D Desai
79b4460b0f This patch will add support for new DCMD to get PD information and a single data structure
to specify LD and JBOD.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:03:28 +00:00
Kashyap D Desai
2a1d3bcde8 To improve RAID 1/10 Write performance, OS drivers need to issue the
required Write IOs as Fast Path IOs (after the appropriate checks
allowing Fast Path to be used) to the appropriate physical drives
(translated from the OS logical IO) and wait for all Write IOs to complete.

Design: A write IO on RAID volume will be examined if it can be sent in
Fast Path based on IO size and starting LBA and ending LBA falling on to
a Physical Drive boundary. If the underlying RAID volume is a RAID 1/10,
driver issues two fast path write IOs one for each corresponding physical
drive after computing the corresponding start LBA for each physical drive.
Both write IOs will have the same payload and are posted to HW such that
replies land in the same reply queue.

If there are no resources available for sending two IOs, driver will send
the original IO from upper layer to RAID volume through the Firmware.

When both IOs are completed by HW, the resources will be released
and SCSI IO completion handler will be called.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:02:44 +00:00
Kashyap D Desai
821df4b93e Detect sequential Write IOs and pass the hint that it is part of sequential
stream to help HBA Firmware do the Full Stripe Writes. For read IOs on
certain RAID volumes like Read Ahead volumes,this will help driver to
send it to Firmware even if the IOs can potentially be sent to
hardware directly (called fast path) bypassing firmware.

Design: 8 streams are maintained per RAID volume as per the combined
firmware/driver design. When there is no stream detected the LRU stream
is used for next potential stream and LRU/MRU map is updated to make this
as MRU stream. Every time a stream is detected the MRU map
is updated to make the current stream as MRU stream.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:01:49 +00:00
Kashyap D Desai
c376f8641e This patch will add new interface to support more than 256 JBODs.
Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:00:45 +00:00
Kashyap D Desai
503c4f8d7f This patch will add support for divert bitmap in RAID map. Divert bitmap is supported for
SAS3.5 adapters only.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 08:00:01 +00:00
Kashyap D Desai
4ad8357607 This patch will add support for new Dynamic RaidMap to have different sizes
for different number of supported VDs for SAS3.5 MegaRAID adapters.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 07:59:09 +00:00
Kashyap D Desai
7aade8bfb8 This patch will add support for next generation(SAS3.5) of Tri mode(SAS, SATA, NVMe)
MegaRAID adapters.

Submitted by: Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:  Kashyap Desai <Kashyap.Desai@broadcom.com>
Approved by:  ken
MFC after:  3 days
Sponsored by:   Broadcom Inc
2018-12-14 07:57:00 +00:00
Mark Johnston
f71ef9b686 Use plain atomic_{add,subtract} when that's sufficient.
CID:		1386920
MFC after:	2 weeks
2018-11-06 17:32:25 +00:00
Eitan Adler
ae4cfcdf30 mrsas(4): Remove unneed extra arg from MR_LdBlockSizeGet().
Obtained From: DragonFly (482292f9859e1ceae4f35343c0a8eac4c4486d1)
2018-05-23 07:39:00 +00:00
Brooks Davis
6469bdcdb6 Move most of the contents of opt_compat.h to opt_global.h.
opt_compat.h is mentioned in nearly 180 files. In-progress network
driver compabibility improvements may add over 100 more so this is
closer to "just about everywhere" than "only some files" per the
guidance in sys/conf/options.

Keep COMPAT_LINUX32 in opt_compat.h as it is confined to a subset of
sys/compat/linux/*.c.  A fake _COMPAT_LINUX option ensure opt_compat.h
is created on all architectures.

Move COMPAT_LINUXKPI to opt_dontuse.h as it is only used to control the
set of compiled files.

Reviewed by:	kib, cem, jhb, jtl
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D14941
2018-04-06 17:35:35 +00:00
Pedro F. Giffuni
ac2fffa4b7 Revert r327828, r327949, r327953, r328016-r328026, r328041:
Uses of mallocarray(9).

The use of mallocarray(9) has rocketed the required swap to build FreeBSD.
This is likely caused by the allocation size attributes which put extra pressure
on the compiler.

Given that most of these checks are superfluous we have to choose better
where to use mallocarray(9). We still have more uses of mallocarray(9) but
hopefully this is enough to bring swap usage to a reasonable level.

Reported by:	wosch
PR:		225197
2018-01-21 15:42:36 +00:00
Pedro F. Giffuni
26c1d774b5 dev: make some use of mallocarray(9).
Focus on code where we are doing multiplications within malloc(9). None of
these is likely to overflow, however the change is still useful as some
static checkers can benefit from the allocation attributes we use for
mallocarray.

This initial sweep only covers malloc(9) calls with M_NOWAIT. No good
reason but I started doing the changes before r327796 and at that time it
was convenient to make sure the sorrounding code could handle NULL values.
2018-01-13 22:30:30 +00:00
Jung-uk Kim
cc8440a569 Fix a typo introduced in r306024. 2017-01-23 21:09:27 +00:00
Alan Somers
4195c7de24 Always null-terminate ccb_pathinq.(sim_vid|hba_vid|dev_name)
The sim_vid, hba_vid, and dev_name fields of struct ccb_pathinq are
fixed-length strings. AFAICT the only place they're read is in
sbin/camcontrol/camcontrol.c, which assumes they'll be null-terminated.
However, the kernel doesn't null-terminate them. A bunch of copy-pasted code
uses strncpy to write them, and doesn't guarantee null-termination. For at
least 4 drivers (mpr, mps, ciss, and hyperv), the hba_vid field actually
overflows. You can see the result by doing "camcontrol negotiate da0 -v".

This change null-terminates those fields everywhere they're set in the
kernel. It also shortens a few strings to ensure they'll fit within the
16-character field.

PR:		215474
Reported by:	Coverity
CID:		1009997 1010000 1010001 1010002 1010003 1010004 1010005
CID:		1331519 1010006 1215097 1010007 1288967 1010008 1306000
CID:		1211924 1010009 1010010 1010011 1010012 1010013 1010014
CID:		1147190 1010017 1010016 1010018 1216435 1010020 1010021
CID:		1010022 1009666 1018185 1010023 1010025 1010026 1010027
CID:		1010028 1010029 1010030 1010031 1010033 1018186 1018187
CID:		1010035 1010036 1010042 1010041 1010040 1010039
Reviewed by:	imp, sephe, slm
MFC after:	4 weeks
Sponsored by:	Spectra Logic Corp
Differential Revision:	https://reviews.freebsd.org/D9037
Differential Revision:	https://reviews.freebsd.org/D9038
2017-01-04 20:26:42 +00:00
Kashyap D Desai
605a51e323 This patch upgrades driver version to 06.712.04.00-fbsd
Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 13:05:43 +00:00
Kashyap D Desai
2d53b48503 This patch will add code to refire IOCTL commands after OCR.
Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 13:04:40 +00:00
Kashyap D Desai
d993dd831d This patch will unblock SYNCHRONIZE_CACHE command to firmware, i.e. don't block the SYNCHRONIZE_CACHE command at driver instead of
passing it to firmware for all Gen3 controllers.
For Thunderbolt controller, keep the legacy behavior i.e. return the SYNCHRONIZE_CACHE command with success status from driver itself.

There is Sysctl parameter 'block_sync_cache' is provided to enable customers either to block/unblock these commands to facilitate
legacy behavior if there is a compatibility issue. Default value for module parameter is to unblock this command.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 13:03:43 +00:00
Kashyap D Desai
85c0a961fa Wait for AEN task to be completed(if in queue) before resetting the controller
and return without processing event in AEN thread, if controller reset is in progress.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 13:02:48 +00:00
Kashyap D Desai
8bb601ac8a This patch will add task management support in driver. Below is high level description:
If a SCSI IO times out, then before initiating OCR, now the driver will try to send a
target reset to the particular target for which the IO is timed out. If that also fails,
then the driver will initiate OCR.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 13:01:31 +00:00
Kashyap D Desai
e2e8afb12c Process outstanding reply descriptors from all the reply descriptor post queues before initiating OCR.
Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 12:59:38 +00:00
Kashyap D Desai
c2a20ff95a Clean up reference to AEN command if abort AEN is succesful as the command is aborted.
Did the same by setting sc->aen_cmd = NULL when aborting AEN is successful.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 12:58:28 +00:00
Kashyap D Desai
8bc320add0 Update controller properties(read OCR capability bit) when MR_EVT_CTRL_PROP_CHANGED recieved.
Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 12:56:53 +00:00
Kashyap D Desai
808517a4f9 Add sanity check in IO and IOCTL path not to process command further if controller is in
HW_CRITICAL_ERROR.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 12:55:01 +00:00
Kashyap D Desai
f9c630813e Use a variable to indicate Gen3 controllers and remove all PCI ids based
checks used for gen3 controllers.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 12:53:05 +00:00
Kashyap D Desai
731b75614d Problem statement:
MFI linked list in megaraid_sas driver is used for mfi-mpt pass-through commands.
This list can be corrupted due to many possible race conditions in driver and
eventually we may see kernel panic.

One example -
MFI frame is freed from calling process as driver send command via polling method and interrupt
for that command comes after driver free mfi frame (actually even after some other context reuse
the mfi frame). When driver receive MPT frame in ISR, driver will be using the index of MFI and
access that MFI frame and finally in-used MFI frames list will be corrupted.

High level description of new solution -
Free MFI and MPT command from same context.
Free both the command either from process (from where mfi-mpt pass-through was called) or from
ISR context. Do not split freeing of MFI and MPT, because it creates the race condition which
will do MFI/MPT list.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   Broadcom Limited/AVAGO Technologies
2016-11-29 12:49:20 +00:00
Ed Maste
6f70040b38 mrsas: update for sys/capability.h rename in r263232 2016-09-20 12:59:30 +00:00
Kashyap D Desai
8cd174a463 Added support for Avago/Broadcom Cutlass(12 Gbps- 16 port count) controllers.
Submitted by:   Sumit Saxena <Sumit.Saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO/BROADCOM Limited
2016-06-02 12:26:55 +00:00
Kashyap D Desai
ac624ec089 Version update patch.
Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO Technologies
2016-05-13 12:24:39 +00:00
Kashyap D Desai
4bb0a4f048 Following bugs fixed as part of this patch:
.Kernel panic while collecting kdump (reported by Doug A.)
.NULL pointer dereference at sertain places
.Removed dead codes

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO Technologies
2016-05-13 12:21:50 +00:00
Kashyap D Desai
c620f351de Added supprot for Avago Intruder controller.
Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO Technologies
2016-05-13 12:18:12 +00:00
Kashyap D Desai
8071588d7a Implemented interrupt Config Hook in mrsas(4) to defer some of the tasks, like:
riegistering AEN, creating cdev.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO Technologies
2016-05-13 12:15:20 +00:00
Kashyap D Desai
3a3fc6cba6 This patch implements driver support for 1MB IO size.
NOTE:
The FreeBSD system currently restricts the MAX IO size to MAXPHYS which
in turn is 128KB. We tested the 1MB IO by converting the MAXPHYS to 1MB.

Following is the mail reference:
http://lists.freebsd.org/pipermail/freebsd-scsi/2015-January/006568.html

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO Technologies
2016-05-13 12:12:09 +00:00
Kashyap D Desai
a688fcd018 Similar to RAID map for Logical Drives, now JBOD map has been introduced for
JBODs. Driver has to sync the JBOD map with firmware and use sequence number
as a reference for JBOD FastPath I/O's.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO Technologies
2016-05-13 12:05:02 +00:00
Kashyap D Desai
f0c7594bf3 There was no ERROR handling for firmware command TIMEOUT. This patch
takes care of any firmware command timeout scenarios by initiating OCR.

Submitted by:   Sumit Saxena <sumit.saxena@broadcom.com>
Reviewed by:    Kashyap Desai <Kashyap.Desai@broadcom.com>
MFC after:  3 days
Sponsored by:   AVAGO Technologies
2016-05-13 12:00:46 +00:00
Pedro F. Giffuni
453130d9bf sys/dev: minor spelling fixes.
Most affect comments, very few have user-visible effects.
2016-05-03 03:41:25 +00:00
Pedro F. Giffuni
87d8fcc80e Replace 0 with NULL for pointers in misc. device drivers.
Found with devel/coccinelle.
2016-04-12 17:23:03 +00:00