Make it possible to set (via ctl.conf(5)) and query (via ctladm islist -v)
target iSCSI offload. Add mechanism to query maximum receive data segment
size supported by chosen hardware offload module, and use it in ctld(8)
to determine the value to advertise to the other side.
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
John Baldwin [Fri, 6 Feb 2015 19:41:23 +0000 (19:41 +0000)]
Change ktrdump to use the more standard -M/-N flags to specify the path
to a crash dump and kernel, respectively. The existing -m/-e flags are
still supported for backwards compatiblity but are no longer documented.
John Baldwin [Fri, 6 Feb 2015 18:19:59 +0000 (18:19 +0000)]
Revert the IPI startup sequence to match what is described in the
Intel Multiprocessor Specification v1.4. The Intel SDM claims that
the INIT IPIs here are invalid, but other systems follow the MP
spec instead.
While here, fix the IPI wait routine to accept a timeout in microseconds
instead of a raw spin count, and don't spin forever during AP startup.
Instead, panic if a STARTUP IPI is not delivered after 20 us.
Alexander Motin [Fri, 6 Feb 2015 17:43:13 +0000 (17:43 +0000)]
Add support for multiple portal groups per target.
This change allows multiple "portal-group" options to be specified per
target. Each of them may include new optional auth-group name parameter
to override per-target auth parameters for specific portal group.
John Baldwin [Fri, 6 Feb 2015 16:45:10 +0000 (16:45 +0000)]
Use direct hardware access for internal requests for KCS and SMIC. In
particular, updates to the watchdog should no longer sleep.
- Add a new IPMI_IO_LOCK for low-level I/O access. Use this for
kcs_polled_request() and smic_polled_request().
- Add a new backend callback "ipmi_driver_request" to handle a driver
request. The new callback performs the request sychronously for KCS
and SMIC. SSIF still defers the work to the worker thread since the
worker thread sleeps during request processing anyway.
- Allocate driver requests on the stack rather than using malloc().
John Baldwin [Fri, 6 Feb 2015 16:09:01 +0000 (16:09 +0000)]
Add a new device control utility for new-bus devices called devctl. This
allows the user to request administrative changes to individual devices
such as attach or detaching drivers or disabling and re-enabling devices.
- Add a new /dev/devctl2 character device which uses ioctls for device
requests. The ioctls use a common 'struct devreq' which is somewhat
similar to 'struct ifreq'.
- The ioctls identify the device to operate on via a string. This
string can either by the device's name, or it can be a bus-specific
address. (For unattached devices, a bus address is the only way to
locate a device.) Bus drivers register an eventhandler to claim
unrecognized device names that the driver recognizes as a valid address.
Two buses currently support addresses: ACPI recognizes any device
in the ACPI namespace via its full path starting with "\" and
the PCI bus driver recognizes an address specification of
'pci[<domain>:]<bus>:<slot>:<func>' (identical to the PCI selector
strings supported by pciconf).
- To make it easier to cut and paste, change the PnP location string
in the PCI bus driver to output a full PCI selector string rather
than 'slot=<slot> function=<func>'.
- Add a devctl(3) interface in libdevctl which provides a wrapper around
the ioctls and is the preferred interface for other userland code.
- Add a devctl(8) program which is a simple wrapper around the requests
supported by devctl(3).
- Add a device_is_suspended() function to check DF_SUSPENDED.
- Add a resource_unset_value() function that can be used to remove a
hint from the kernel environment. This is used to clear a
hint.<driver>.<unit>.disabled hint when re-enabling a boot-time
disabled device.
This was a local addition to the original change from NetBSD.
Being this libc there is some chance for it to interfere with
user's cget*() functions usage. The memory leak was finely
plugged by r278300.
Davide Italiano [Fri, 6 Feb 2015 03:49:31 +0000 (03:49 +0000)]
Always prefer double dashes for GNU LD long options.
I discovered this while working on llvm/lld and realized export-dynamic
only supported --. Although upstream will eventually grow to support
both - and --, switch this in our build system, because GNU ld supports
both modes, and because there's some hope lld will become the default linker
for FreeBSD in the future.
Navdeep Parhar [Fri, 6 Feb 2015 01:10:04 +0000 (01:10 +0000)]
cxgbe(4): Add a minimal if_cxl module that pulls in the real driver as
a dependency. This ensures "ifconfig cxl<n> ..." does the right thing
even when it's run with no driver loaded.
John Baldwin [Thu, 5 Feb 2015 22:42:44 +0000 (22:42 +0000)]
Expose the constants for internal new-bus device flags to userland. The
flag value is already exposed via dv_flags, just not the meaning of the
flags themselves. Use these constants to annotate devices that are
disabled or suspended in devinfo output.
Glen Barber [Thu, 5 Feb 2015 15:46:01 +0000 (15:46 +0000)]
Security Advisory information is included on several
pages in the release notes. Rather than duplicating
the information between various files, add two new
files to include in all pages that currently display
the information.
* Make sure table algorithm destroy hook is always called without locks
* Explicitly lock freeing interface references in ta_destroy_ifidx
* Change ipfw_iface_unref() to require UH lock
* Add forgotten ipfw_iface_unref() to destroy_ifidx_locked()
PR: kern/197276
Submitted by: lev
Sponsored by: Yandex LLC
Partially revert r277922, avoid sleeping and do flush if we a awaken,
instead of waiting for the FLUSH_* flags. Also, when requesting
flush, do the wakeups unconditionally even when FLUSH_CLEANUP flag was
already set.
Reported and tested by: dim,
"Lundberg, Johannes" <johannes@brilliantservice.co.jp>
Bisected by: dim
MFC after: 2 weeks
Enji Cooper [Thu, 5 Feb 2015 11:42:59 +0000 (11:42 +0000)]
Honor the following flags for items that can be conditionalized out of the
build/install without disrupting other dependent services (see r278249, et
al):
Enji Cooper [Thu, 5 Feb 2015 11:38:29 +0000 (11:38 +0000)]
Honor the following flags with the following rc.d scripts for services that can
be easily decoupled from the boot process without disrupting other services
turn GEOM_UNCOMPRESS_DEBUG into a proper option so it can be specified
in kernel config files..
put VERBOSE_SYSINIT in it's own option header so the one file,
init_main.c, can use it instead of requiring an entire kernel recompile
to change one file..
Don't call callout_drain() with iscsi mutex held; this fixes a warning
that was introduced recently. While here, don't try to access is_terminating
without lock.
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Make it possible to set (via iscsi.conf(5)) and query (via iscsictl -v)
initiator iSCSI offload. Pass maximum data segment size supported by
chosen offload module to iscsid(8), and make iscsid(8) not try to negotiate
anything larger than that.
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Peter Wemm [Thu, 5 Feb 2015 01:36:53 +0000 (01:36 +0000)]
Add -fwrapv to CFLAGS for the kernel. This essentially un-reverts r259045.
The C standard undefines behavior when signed integers overflow. The
compiler toolchain has become more adept at detecting this and taking
advantage of faster undefined behavior. At the current time this has the
unfortunate effect of the clock stopping after 24 days of uptime.
clang makes no distinction between -fwrapv and -fno-strict-overflow. gcc
does treat them differently but -fwrapv is mature in gcc and is the
behavior are actually expecting.
Add support for probing the SCSI VPD Extended Inquiry page (0x86).
This VPD page is effectively an extension of the standard Inquiry
data page, and includes lots of additional bits.
This commit includes support for probing the page in the SCSI probe code,
and an additional request type for the XPT_DEV_ADVINFO CCB. CTL already
supports the Extended Inquiry page.
Support for querying this page in the sa(4) driver will come later.
sys/cam/scsi/scsi_xpt.c:
Probe the Extended Inquiry page, if the device supports it, and
return it in response to a XPT_DEV_ADVINFO CCB if it is requested.
sys/cam/scsi/cam_ccb.h:
Define a new advanced information CCB data type, CDAI_TYPE_EXT_INQ.
sys/cam/cam_xpt.c:
Free the extended inquiry data in a device when the device goes
away.
sys/cam/cam_xpt_internal.h:
Add an extended inquiry data pointer and length to struct cam_ed.
sys/sys/param.h
Bump __FreeBSD_version for the addition of the new
CDAI_TYPE_EXT_INQ advanced information type.
Dimitry Andric [Wed, 4 Feb 2015 21:00:29 +0000 (21:00 +0000)]
For now, add -stdlib=libc++ to the flags for building clang, since that
makes it easier to build head on stable/9, where libstdc++ is still the
default. We can revisit this when somebody will try to build base with
gcc 4.8.1 or higher, and its included libstdc++.
Fix a bug where an interrupt could be masked unintentionally when
bus_config_intr() is called with the same interrupt type and polarity that
is already set.
Add GPIO interrupt support for BCM2835 (Raspberry pi).
With this commit any of the GPIO pins can now be programmed to act as an
interrupt source for GPIO devices (i.e. limited to devices directly
attached to gpiobus - at least for now).
Warner Losh [Wed, 4 Feb 2015 15:59:51 +0000 (15:59 +0000)]
Add comment about why checking for 0xff is OK. There's two bits in the
ISR that are normally clear. RST is one, though in some overflow cases
it can be set. RDC is only set when a remote DMA is finished from the
memory mapped memory to the transmit rings, which we poll fore in the
code with ED_LOCK around the operation that would set it.
Warner Losh [Tue, 3 Feb 2015 18:59:52 +0000 (18:59 +0000)]
Silence a coverity warning about ignoring a return value. We do, but
we also know that it "can't fail" given the single-threaded nature of
device enumeration. Go ahead and check it just in case, but add a
comment.
Reduce confusion in scalbnl() family of functions.
The changes unrelated to the bug in r277948 made
the code very difficult to understand to both
coverity and regular humans so take a step back
to something that is much easier to understand
for both and follows better the original code.
If the vm_page_alloc_contig() failed in the ttm page allocators, do
what other callers of vm_page_alloc_contig() do, retry after
vm_pageout_grow_cache().
Fix use after free in pipe_dtor(). PIPE_NAMED flag must be tested
before pipeclose() is called, since for !PIPE_NAMED case, when peer is
already closed, the pipe pair memory is freed.
Mark Johnston [Tue, 3 Feb 2015 06:22:46 +0000 (06:22 +0000)]
Avoid hard-coding a path to ksh in scripts that are executed directly by
the test harness. This is a problem in many of the *.ksh test scripts as
well, but those scripts are executed using a shell whose path is specified
in dtest.pl, so there's no need to modify them.
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