aac_command_status_table, which is actually unused since r111532.
While at it, make aac_if a pointer to the now const interface tables
instead of copying them over to the softc (this alone already reduces the
size of aac.ko on amd64 by ~1 KiB).
- Remove redundant softc members.
- Use DEVMETHOD_END.
- Use NULL instead of 0 for pointers.
- Remove redundant bzero(9)'ing of the softc.
- Use pci_enable_busmaster(9) instead of duplicating it.
- Remove redundant checking for PCIM_CMD_MEMEN (resource allocation will
just fail).
- Canonicalize the error messages in case of resource allocation failures.
- Add support for using MSI instead of INTx, controllable via the tunable
hw.aac.enable_msi (defaulting to on).
MFC after: 1 month
every architecture's busdma_machdep.c. It is done by unifying the
bus_dmamap_load_buffer() routines so that they may be called from MI
code. The MD busdma is then given a chance to do any final processing
in the complete() callback.
The cam changes unify the bus_dmamap_load* handling in cam drivers.
The arm and mips implementations are updated to track virtual
addresses for sync(). Previously this was done in a type specific
way. Now it is done in a generic way by recording the list of
virtuals in the map.
Submitted by: jeff (sponsored by EMC/Isilon)
Reviewed by: kan (previous version), scottl,
mjacob (isp(4), no objections for target mode changes)
Discussed with: ian (arm changes)
Tested by: marius (sparc64), mips (jmallet), isci(4) on x86 (jharris),
amd64 (Fabian Keil <freebsd-listen@fabiankeil.de>)
offline in response to a INQUIRY command that does not retreive vital
product data(I personally have observed the behaviour on an Adaptec 2405
and a 5805). Force the peripheral qualifier to "connected" so that upper
layers correctly recognize that a disk is present.
This bug was uncovered by r216236. Prior to that fix, aac(4) was
accidentally clearing the peripheral qualifier for all inquiry commands.
This fixes an issue where passthrough devices were not created for
disks behind aac(4) controllers suffering from the bug. I have
verified that if a disk is not present that we still properly detect
that and not create the passthrough device.
Sponsored by: Sandvine Incorporated
MFC after: 1 week
corruption. Thanks to scottl@ for the suggestion.
This change will likely be revised after consideration of a general
method to address this type of issue for other drivers.
Sponsored by: Sandvine Incorporated
MFC after: 3 days
Some older firmware versions have issues that can be worked around by
avoiding certain operations. Add a sysctl dev.aac.#.firmware_build to
make it easy for scripts or userland tools to detect the firmware
version.
one. Interestingly, these are actually the default for quite some time
(bus_generic_driver_added(9) since r52045 and bus_generic_print_child(9)
since r52045) but even recently added device drivers do this unnecessarily.
Discussed with: jhb, marcel
- While at it, use DEVMETHOD_END.
Discussed with: jhb
- Also while at it, use __FBSDID.
The SYSCTL_NODE macro defines a list that stores all child-elements of
that node. If there's no SYSCTL_DECL macro anywhere else, there's no
reason why it shouldn't be static.
kernel for FreeBSD 9.0:
Add a new capability mask argument to fget(9) and friends, allowing system
call code to declare what capabilities are required when an integer file
descriptor is converted into an in-kernel struct file *. With options
CAPABILITIES compiled into the kernel, this enforces capability
protection; without, this change is effectively a no-op.
Some cases require special handling, such as mmap(2), which must preserve
information about the maximum rights at the time of mapping in the memory
map so that they can later be enforced in mprotect(2) -- this is done by
narrowing the rights in the existing max_protection field used for similar
purposes with file permissions.
In namei(9), we assert that the code is not reached from within capability
mode, as we're not yet ready to enforce namespace capabilities there.
This will follow in a later commit.
Update two capability names: CAP_EVENT and CAP_KEVENT become
CAP_POST_KEVENT and CAP_POLL_KEVENT to more accurately indicate what they
represent.
Approved by: re (bz)
Submitted by: jonathan
Sponsored by: Google Inc
- Fix races on setting AAC_AIFFLAGS_ALLOCFIBS
- Remove some unused AAC_IFFLAGS_* bits.
Please note that the kthread still makes a difference between the
total mask and AAC_AIFFLAGS_ALLOCFIBS because more flags may be
added in the future to aifflags.
Sponsored by: Sandvine Incorporated
Reported and reviewed by: emaste
MFC after: 2 weeks
make use of the aac_ioctl_event callback, if aac_alloc_command fails. This
can end up in an infinite loop in the while loop in aac_release_command.
Further investigation into the issue mentioned by Scott Long [1] will be
necessary.
[1] http://lists.freebsd.org/pipermail/freebsd-current/2007-October/078740.html
which were raised during hot-swap events. Now such events trigger cam
rescans, as is done in the mps driver.
Submitted by: Mark Johnston <mjohnston at sandvine dot com>
- D_TRACKCLOSE may be used there as d_close() are expected to match up
d_open() calls
- Replace the hand-crafted counter and flag with the
device_busy()/device_unbusy() proper usage.
Sponsored by: Sandvine Incorporated
Reported by: Mark Johnston <mjohnston at sandvine dot com>
Tested by: Mark Johnston
Reviewed by: emaste
MFC after: 10 days
arcconf tool by Adaptec already seems to use for identifying the
Serial Number of the devices.
Some simple things (like FIB setup and bound checks) are retrieved
from the Adaptec's driver, but this implementation is quite different
because it does use the normal buffer dmat area for loading segments
and not a special one (like the Adaptec's one does).
Sponsored by: Sandvine Incorporated
Discussed with: emaste, scottl
Reviewed by: emaste, scottl
MFC: 2 weeks
128 FIBs first and allocated more later if necessary. Remove now unused
definitions from the header file[1].
- Force sequential bus scanning. It seems parallel scanning is in fact
slower and causes more harm than good[1]. Adjust a comment to reflect that.
PR: kern/141269
Submitted by: Alexander Sack (asack at niksun dot com)[1]
Reviewed by: scottl
"COMMAND 0x........ TIMEOUT AFTER .. SECONDS" messages. Any commands
that get truly stuck will still trigger the warning and the hardware
health check, just a little bit later.
The newbus lock is responsible for protecting newbus internIal structures,
device states and devclass flags. It is necessary to hold it when all
such datas are accessed. For the other operations, softc locking should
ensure enough protection to avoid races.
Newbus lock is automatically held when virtual operations on the device
and bus are invoked when loading the driver or when the suspend/resume
take place. For other 'spourious' operations trying to access/modify
the newbus topology, newbus lock needs to be automatically acquired and
dropped.
For the moment Giant is also acquired in some key point (modules subsystem)
in order to avoid problems before the 8.0 release as module handlers could
make assumptions about it. This Giant locking should go just after
the release happens.
Please keep in mind that the public interface can be expanded in order
to provide more support, if there are really necessities at some point
and also some bugs could arise as long as the patch needs a bit of
further testing.
Bump __FreeBSD_version in order to reflect the newbus lock introduction.
Reviewed by: ed, hps, jhb, imp, mav, scottl
No answer by: ariff, thompsa, yongari
Tested by: pho,
G. Trematerra <giovanni dot trematerra at gmail dot com>,
Brandon Gooch <jamesbrandongooch at gmail dot com>
Sponsored by: Yahoo! Incorporated
Approved by: re (ksmith)
The default (64K) is too pessimistic for "new comm" hardware.
Also, this is bad because multiple controllers get limited by
the global tunable.
Reviewed by: scottl
Approved by: re (kensmith)
