edwin [Thu, 31 Mar 2011 06:29:15 +0000 (06:29 +0000)]
MFC of 198254, 198255, 198350, 198267, 209190, 208831, 208830, 210243
198254:
When tzsetup is run as non-root and the "CMOS clock question on
UTC" is answered as No, it would abort without properly ending the
dialog session.
198255:
Make the usage of the default zoneinfo file to install clearer.
198350:
- Add support for chrooted installs.
- Add examples to the man-page.
198267:
Instead of having to know which timezone was picked last time, you
now can run "tzsetup -r" which will reinstall the last choice. This
data is recorded in /var/db/zoneinfo.
209190:
Use literal format strings. Found by clang.
208831:
Add comment that this value is unused.
It is obvious that it isn't used, but both clang and Coverity talk about it.
208830:
When there is a problem with writing, also bail out.
Allow to checksum on-the-wire data using either CRC32 or SHA256.
r219354 (pjd):
Allow to compress on-the-wire data using two algorithms:
- HOLE - it simply turns all-zero blocks into few bytes header;
it is extremely fast, so it is turned on by default;
it is mostly intended to speed up initial synchronization
where we expect many zeros;
- LZF - very fast algorithm by Marc Alexander Lehmann, which shows
very decent compression ratio and has BSD license.
r219369 (pjd):
Provides three states for pjdlog_initialized, so we can also tell that
this is fist initialization ever.
r219370 (pjd), r219385 (pjd):
- Turn on printf extentions.
- Load support for %T for pritning time.
- Add support for %N for printing number in human readable form.
- Add support for %S for printing sockaddr structure (currently only AF_INET
family is supported, as this is all we need in HAST).
- Disable gcc compile-time format checking as this will no longer work.
r219371 (pjd):
Use %S to print IP address and port number.
r219372 (pjd):
- Log size of data to synchronize in human readable form (using %N).
- Log synchronization time (using %T).
- Log synchronization speed in human readable form (using %N).
r219373 (pjd):
Print some of the numbers in human readable form (using %N).
r219482:
Make workers inherit debug level from the main process.
r219620 (pjd):
In command line options allow size to be specified using k/M/G/T
suffixes.
r219669 (pjd):
Remove #include needed for debugging.
r219721:
For secondary, set 2 * HAST_KEEPALIVE seconds timeout for incoming
connection so the worker will exit if it does not receive packets from
the primary during this interval.
Reported by: Christian Vogt <Christian.Vogt@haw-hamburg.de>
Tested by: Christian Vogt <Christian.Vogt@haw-hamburg.de>
r219813 (pjd):
If there is any traffic on one of out descriptors, we were not checking for
long running hooks. Fix it by not using select(2) timeout to decide if we want
to check hooks or not.
r219814 (pjd):
When creating connection on behalf of primary worker, set pjdlog prefix
to resource name and role, so that any logs related to that can be identified
properly.
r219815 (pjd):
Add snprlcat() and vsnprlcat() - the functions I'm always missing.
They work as a combination of snprintf(3) and strlcat(3) - the caller
can append a string build based on the given format.
r219816 (pjd):
Use snprlcat() instead of two strlcat(3)s.
r219817 (pjd):
Log when we start hooks checking and when we execute a hook.
r219818 (pjd), r219821 (pjd):
In hast.conf we define the other node's address in 'remote' variable.
This way we know how to connect to secondary node when we are primary.
The same variable is used by the secondary node - it only accepts
connections from the address stored in 'remote' variable.
In cluster configurations it is common that each node has its individual
IP address and there is one addtional shared IP address which is assigned
to primary node. It seems it is possible that if the shared IP address is
from the same network as the individual IP address it might be choosen by
the kernel as a source address for connection with the secondary node.
Such connection will be rejected by secondary, as it doesn't come from
primary node individual IP.
Add 'source' variable that allows to specify source IP address we want to
bind to before connecting to the secondary node.
r219821 (pjd):
Forgot to commit this as a part of r219818.
r219830 (pjd):
Detect situation where resource internal identifier differs.
This means that both nodes have separately managed resources that don't
have the same data.
r219831 (pjd):
Be pedantic and free nvout before exiting.
r219832 (pjd):
Increase debug level of "Checking hooks." message.
r219833 (pjd):
Remove stale comment. Yes, it is valid to set role back to init.
r219837 (pjd):
Before handling any events on descriptors check signals so we can update
our info about worker processes if any of them was terminated in the meantime.
This fixes the problem with 'hastctl status' running from a hook called on
split-brain:
1. Secondary calls a hooks and terminates.
2. Hook asks for resource status via 'hastctl status'.
3. The main hastd handles the status request by sending it to the secondary
worker who is already dead, but because signals weren't checked yet he
doesn't know that and we get EPIPE.
r219843 (pjd):
Fix typo.
r219844 (pjd):
Initialize localcnt on first write. This fixes assertion when we create
resource, set role to primary, do no writes, then sent it to secondary
and accept connection from primary.
r219864 (pjd):
White space cleanups.
r219873 (pjd), r219873 (pjd):
The proto API is a general purpose API, so don't use 'hast' in structures or
function names. It can now be used outside of HAST.
r219879:
For requests that are sent only to remote component use the
error from remote.
r219882:
After synchronization is complete we should make primary counters be
equal to secondary counters:
trociny [Tue, 29 Mar 2011 17:59:30 +0000 (17:59 +0000)]
MFC r219368:
r219368 (pjd):
To be able to use printf extensions we need to turn off gcc format checking.
Following the convention of NO_WERROR and NO_WCAST_ALIGN add NO_WFORMAT,
which, when defined in Makefile, turns off compile-time format checking
(by adding -Wno-format), but still allows to use high WARNS level.
trociny [Tue, 29 Mar 2011 17:52:45 +0000 (17:52 +0000)]
MFC r219342, r219346:
r219342 (pjd):
Fix various issues in how %#T is handled:
- If precision is 0, don't print period followed by no digits.
- If precision is 0 stop printing units as soon as possible
(eg. if we have three years and five days and precision is 0
print only 3y5d).
- If precision is not 0, print all units (eg. 3y0d0h0m0s.00).
r219346 (pjd):
Because we call __printf_out() with a on-stack buffer, also call
__printf_flush() so we are sure it won't be referenced after we return.
Use more consistent function name with the others (pjdlogv_prefix_set()
instead of pjdlog_prefix_setv()).
r217732 (pjd):
Add nv_assert() which allows to assert that the given name exists.
r217737 (pjd):
Add missing logs.
r217784 (pjd):
Don't open configuration file from worker process. Handle SIGHUP in the
master process only and pass changes to the worker processes over control
socket. This removes access to global namespace in preparation for capsicum
sandboxing.
r217958 (pjd):
Remove __dead2 from pjdlog_verify() prototype, it does return sometimes.
r217961 (pjd):
- Remove obvious NOTREACHED comment after abort() call.
- Remove redundant newline at the end of the file.
r217962 (pjd):
Add LOG_NDELAY flag to openlog(3) - we want descriptor to be immediately open
so there are no surprises once we start chrooting or using capsicum.
r217964 (pjd):
Use pjd copyright for 2011 work.
r217965 (pjd):
Add functions to initialize/finalize pjdlog. This allows to open/close log
file at will.
r217966 (pjd):
Extend pjdlog_verify() to support the following additional macros:
PJDLOG_RVERIFY() - always check expression and on false log the given message
and exit.
PJDLOG_RASSERT() - check expression when NDEBUG is not defined and on false log
given message and exit.
PJDLOG_ABORT() - log the given message and exit.
r217967 (pjd):
Close the control socket before exiting, so it will be unlinked.
r217969 (pjd):
Remember created control connection so on fork(2) we can close it in child.
r218040 (pjd):
Initialize all global variables on pjdlog_init().
r218041 (pjd):
Add function to close all unneeded descriptors after fork(2).
r218042 (pjd):
Add comments to places where we treat errors as ciritical, but it is possible
to handle them more gracefully.
r218043 (pjd):
Close all unneeded descriptors after fork(2).
r218044 (pjd):
Add function to assert that the only descriptors we have open are the ones
we expect to be open. Also assert that they point at expected type.
Because openlog(3) API is unable to tell us descriptor number it is using, we
have to close syslog socket, remember assert message in local buffer and if we
fail on assertion, reopen syslog socket and log the message.
r218045 (pjd):
Use newly added descriptors_assert() function to ensure only expected
descriptors are open.
r218046 (pjd), r218047 (pjd), r218119 (maxim):
Add 'hast' user and 'hast' group that will be used by hastd (and maybe hastctl)
to drop privileges.
r218048 (pjd):
Implement function that drops privileges by:
- chrooting to /var/empty (user hast home directory),
- setting groups to 'hast' (user hast primary group),
- setting real group id, effective group id and saved group id to 'hast',
- setting real user id, effective user id and saved user id to 'hast'.
At the end verify that those operations where successfull.
r218049 (pjd):
Drop privileges in worker processes.
Accepting connections and handshaking in secondary is still done before
dropping privileges. It should be implemented by only accepting connections in
privileged main process and passing connection descriptors to the worker, but
is not implemented yet.
r218132 (pjd):
Rename pjdlog_verify() to pjdlog_abort() as it better describes what the
the function does and mark it with __dead2.
r218138 (pjd):
- Use pjdlog for assertions and aborts as this will log assert/abort message
to syslog if we run in background.
- Asserts in proto.c that method we want to call is implemented and remove
dummy methods from protocols implementation that are only there to abort
the program with nice message.
r218139 (pjd):
Implement two new functions for sending descriptor and receving descriptor
over UNIX domain sockets and socket pairs.
This is in preparation for capsicum.
r218147 (pjd), r218148 (pjd):
Fix build on ia64.
r218158 (pjd):
Do not set socket send and receive buffer. It will be auto-tuned.
Confirmed by: rwatson
r218185 (pjd):
Be prepared that hp_client or hp_server might be NULL now.
r218191 (pjd):
Move protocol allocation and deallocation to separate functions.
r218192 (pjd), r218201 (bz):
Allow to specify connection timeout by the caller.
r218193 (pjd):
Add proto_connect_wait() to wait for connection to finish.
If timeout argument to proto_connect() is -1, then the caller needs to use
this new function to wait for connection.
This change is in preparation for capsicum, where sandboxed worker wants
to ask main process to connect in worker's behalf and pass descriptor
to the worker. Because we don't want the main process to wait for the
connection, it will start async connection and pass descriptor to the
worker who will be responsible for waiting for the connection to finish.
r218194 (pjd):
- Rename proto_descriptor_{send,recv}() functions to
proto_connection_{send,recv} and change them to return proto_conn
structure. We don't operate directly on descriptors, but on
proto_conns.
- Add wrap method to wrap descriptor with proto_conn.
- Remove methods to send and receive descriptors and implement this
functionality as additional argument to send and receive methods.
r218214 (pjd):
Let the caller log info about successful privilege drop.
We don't want to log this in hastctl.
r218215 (pjd):
Drop privileges after connecting to hastd, but before sending or receiving
anything.
r218217 (pjd):
Add missing locking after moving keepalive_send() to remote send thread
in r214692.
r218218 (pjd):
Setup another socketpair between parent and child, so that primary sandboxed
worker can ask the main privileged process to connect in worker's behalf
and then we can migrate descriptor using this socketpair to worker.
This is not really needed now, but will be needed once we start to use
capsicum for sandboxing.
r218370 (pjd):
Close more descriptors that can be open if the worker process for the given
resource is already running.
Add (void) cast before snprintf(3)s for which we are not interested in return
values.
r218376 (pjd):
Now that we break the loop on fstat(2) failure we no longer need to satisfy
gcc's imperfections.
r218464 (pjd):
Unlink UNIX domain socket file only if:
1. The descriptor is the one we are listening on (not the one when we connect
as a client and not the one which is created on accept(2)).
2. Descriptor was created by us (PID matches with the PID stored on bind(2)).
yongari [Mon, 28 Mar 2011 00:13:41 +0000 (00:13 +0000)]
MFC r219701:
Remove too expensive bus_dmamap_sync(9) call in dc_rx_resync().
With this change, driver may not notice updated descriptor status
change when bounce buffers are active. However, rxeof() in next run
will handle the synchronization.
Change dc_rxeof() a bit to return the number of processed frames in
RX descriptor ring. Previously it returned the number of frames
that were successfully passed to upper stack which in turn means it
ignored frames that were discarded due to errors. The number of
processed frames in RX descriptor ring is used to detect whether
driver is out of sync with controller's current descriptor pointer.
Returning number of processed frames reduces unnecessary (probably
wrong) re-synchronization.
yongari [Sun, 27 Mar 2011 23:13:02 +0000 (23:13 +0000)]
MFC r219407:
Rearrange dc_tx_underrun() a bit to correctly set TX FIFO threshold
value. Controllers that always require "store and forward" mode(
Davicom and PNIC 82C168) have no way to recover from TX underrun
except completely reinitializing hardware. Previously only Davicom
was reinitialized and the TX FIFO threshold was changed not to use
"store and forward" mode after reinitialization since the default
FIFO threshold value was 0. This effectively disabled Davicom
controller's "store and forward" mode once it encountered TX
underruns. In theory, this can cause watchodg timeouts.
Intel 21143 controller requires TX MAC should be idle before
changing TX FIFO threshold. So driver tried to disable TX MAC and
checked whether it saw the idle state of TX MAC. Driver should
perform full hardware reinitialization on failing to enter to idle
state and it should not touch TX MAC again once it performed full
reinitialization.
While I'm here remove resetting TX FIFO threshold to 0 when
interface is put into down state. If driver ever encountered TX
underrun, it's likely to trigger TX underrun again whenever
interface is brought to up again. Keeping old/learned TX FIFO
threshold value shall reduce the chance of seeing TX underrns in
next run.
yongari [Sun, 27 Mar 2011 23:02:12 +0000 (23:02 +0000)]
MFC r218833,218964:
r218833:
Count how many frames driver lost in interrupt handler. This
register is cleared on read so make sure to clear it in driver
initialization phase.
r218964:
Remove unnecessary controller reinitialization which resulted in
link flips during alias address insertion or dhclient operation.
While I'm here remove dc_reset() in DC_ISR_BUS_ERR case. Device is
fully reinitialized again in dc_init_locked().
yongari [Sun, 27 Mar 2011 22:48:58 +0000 (22:48 +0000)]
MFC r218832:
Split common TX/RX descriptor DMA tag to TX and RX DMA tags
respectively and fix all bus_dma(9) issues seen when bounce buffers
are used.
o Setup frame handling had no bus_dmamap_sync(9) which prevented
driver from configuring RX filter. Add missing bus_dmamap_sync(9)
in both dc_setfilt_21143()/dc_setfilt_xircom() and dc_txeof().
o Use bus_addr_t for DMA segment instead of using u_int32_t.
o Introduce dc_dma_alloc()/dc_dma_free() functions to allocate/free
DMA'able memory.
o Create two DMA descriptor list for each TX/RX lists. This change
will minimize the size of bounce buffers that would be used in
each TX/RX path. Previously driver had to copy both TX/RX lists
when bounce buffer is active.
o 21143 data sheet says descriptor list requires 4 bytes alignment.
Remove PAGE_SIZE alignment restriction and use
sizeof(struct dc_dec).
o Setup frame requires 4 bytes alignment. Remove PAGE_SIZE
alignment restriction and use sizeof(struct dc_dec).
o Add missing DMA map unload for both setup frame and TX/RX
descriptor list.
o Overhaul RX handling logic such that make driver always allocate
new RX buffer with dc_newbuf(). Previously driver allowed to
copy received frame with m_devget(9) after passing the
descriptor ownership to controller. This can lead to passing
wrong frame to upper stack.
o Introduce dc_discard_rxbuf() which will discard received frame
and reuse loaded DMA map and RX mbuf.
o Correct several wrong bus_dmamap_sync(9) usage in dc_rxeof and
dc_txeof. The TX/RX descriptor lists are updated by both driver
and HW so READ/WRITE semantics should be used.
o If driver failed to allocate new RX buffer, update if_iqdrops
counter instead of if_ierrors since driver received the frame
without errors.
o Make sure to unload loaded setup frame DMA map in dc_txeof and
clear the mark of setup frame of the TX descriptor in dc_txeof().
o Add check for possible TX descriptor overruns in dc_encap() and
move check for free buffer to caller, dc_start_locked().
o Swap the loaded DMA map and the last DMA map for multi-segmented
frames. Since dc_txeof() assumes the last descriptor of the
frame has the DMA map, driver should swap the first and the last
DMA map in dc_encap(). Previously driver tried to unload
not-yet-loaded DMA map such that the loaded DMA map was not
unloaded at all for multi-segmented frames.
o Rewrite DC_RXDESC/DC_TXDESC macro to simpler one.
o Remove definition of ETHER_ALIGN, it's already defined in
ethernet.h.
With this changes, dc(4) works with bounce buffers and it shall
also fix issues which might have shown in PAE environments.
yongari [Sun, 27 Mar 2011 22:36:16 +0000 (22:36 +0000)]
MFC r218830-218831:
r218830:
Send frames only when there is a valid link and driver is running
as well as controller has enough free TX descriptors.
Remove check for number of queued frames before attempting to
transmit. I guess it was added to allow draining queued frames
even if there is no link. I'm under the impression this type of
check should be done in upper layer. No other drivers in tree do
that.
r218831:
Rearrange interrupt handler a bit and remove forever loop.
Previously dc(4) always checked whether there is pending interrupts
and this consumed a lot of CPU cycles in interrupt handler. Limit
the number of processing for TX/RX frames to 16. Also allow sending
frames in the loop not to starve TX under high RX load.
Reading DC_ISR register should be protected with driver lock,
otherwise interrupt handler could be run(e.g. link state change)
before the completion of dc_init_locked().
yongari [Sun, 27 Mar 2011 22:31:17 +0000 (22:31 +0000)]
MFC r218789,218820,218826-218828:
r218789:
Remove use case of DC_TX_ONE. It was used to limit queue just 1 TX
frame in DM910x controllers. In r67595(more than 10 years ago) it
was replaced to use "Store and Forward" mode and made controller
generate TX completion interrupt for every frame.
r218820:
For controllers that have TX interrupt moderation capability,
request TX completion interrupt for every 8-th frames. Previously
dc(4) requested TX completion interrupt if number of queued TX
descriptors is greater than 64. This caused a lot of TX completion
interrupt under high TX load once driver queued more than 64 TX
descriptors. It's quite normal to see more than 64 queued TX
descriptors under high TX load.
This change reduces the number of TX completion interrupts to be
less than 17k under high TX load. Because this change does not
generate TX completion interrupt for each frame, add reclaiming
transmitted buffers in dc_tick not to generate false watchdog
timeouts.
While I'm here add check for queued descriptors in dc_txeof() since
there is no more work to do when there is no pending descriptors.
r218826:
Make sure to clear status word of TX descriptor in dc_list_tx_init().
Do not update if_opackets if the transmission had failed.
r218827:
There is no need to execute filter configuration when driver is not
running. Remove wrong driver state change in dc_setfilt_xircom().
While I'm here nuke unnecessary assignments.
r218828:
Fix a long standing bug where driver handed over RX descriptor
ownership to controller before completion of access to the
descriptor. Driver is faking up status word so it should not give
ownership to controller until it completes RX processing.
yongari [Sun, 27 Mar 2011 22:20:44 +0000 (22:20 +0000)]
MFC r213841,218787-218788:
r213841:
It seems some multi-port dc(4) controllers shares SROM of the first
port such that reading station address from second port always
returned 0xFF:0xFF:0xFF:0xFF:0xFF:0xFF Unfortunately it seems there
is no easy way to know whether SROM is shared or not. Workaround
the issue by traversing dc(4) device list and see whether we're
using second port and use station address of controller 0 as base
station address of second port.
PR: kern/79262
r218787:
When driver have to use base softc due to lack of SROM on second
port, copy SROM information from base softc as well and run SROM
parser again. This change is necessary for some dual port
controllers to make dc(4) correctly detect PHY media based on first
port configuration table.
While I'm here add a check for validity of the base softc before
duplicating SROM contents from base softc. If driver failed to
attach to the first port it can access invalid area.
PR: kern/79262
Reviewed by: marius
r218788:
Apply special PHY initialization code for 21143 controllers before
any other media configuration. Otherwise some 21143 controller
cannot establish a link. While I'm here remove the PHY
initialization code in dc_setcfg(). Since dc_setcfg() is called
whenever link state is changed, having the PHY initialization code
in dc_setcfg() resulted in continuous link flips.
After driver resets SIA, use default SIA transmit/receive
configuration instead of disabling autosense/autonegotiation.
Otherwise, controller fails to establish a link as well as losing
auto-negotiation capability. For manual media configuration, always
configure 21143 controller with specified media to ensure media
change. This change makes ANA-6922 establish link with/without
auto-negotiation.
While I'm here be more strict on link UP/DOWN detection logic.
Many thanks to marius who fixed several bugs in initial patch and
even tested the patch on a couple of dc(4) controllers.
PR: kern/79262
Reviewed by: marius
Tested by: marius
np [Sun, 27 Mar 2011 05:09:21 +0000 (05:09 +0000)]
MFC r219944
Do not over-allocate MSI interrupts for the case where each ingress
queue has its own interrupt. If the exact number that we need is not a
power of 2 and we're using MSI, then switch to interrupt multiplexing.
While here, replace the magic numbers with something more readable.
yongari [Sat, 26 Mar 2011 21:29:39 +0000 (21:29 +0000)]
MFC r219787:
Correct broadcast frame handling. Setting bit6 of MCR0 register
enables broadcast filtering. Make sure to clear the bit to receive
broadcast frames. While I'm here rename the bit definition to
reflect reality.
mdf [Fri, 25 Mar 2011 22:11:39 +0000 (22:11 +0000)]
MFC r216060. This differs from the original commit in that it
preserves the KBI size of struct sysctl_oid. Also, on stable/8 the
compiler thinks that 'len' in sysctl_sysctl_name2oid() is used
uninitialized.
Do not hold the sysctl lock across a call to the handler. This fixes a
general LOR issue where the sysctl lock had no good place in the
hierarchy. One specific instance is #284 on
http://sources.zabbadoz.net/freebsd/lor.html .
mdf [Fri, 25 Mar 2011 18:16:36 +0000 (18:16 +0000)]
MFC r218825. [The implementation change to kdb_sysctl_available()
cannot be MFC'd as it requires a non-MFCable change (adding drains to
sbuf)].
Modify kdb_trap() so that it re-calls the dbbe_trap function as long as
the debugger back-end has changed. This means that switching from ddb
to gdb no longer requires a "step" which can be dangerous on an
already-crashed kernel.
Also add a capability to get from the gdb back-end back to ddb, by
typing ^C in the console window.
While here, simplify kdb_sysctl_available() by using
sbuf_new_for_sysctl(), and use strlcpy() instead of strncpy() since the
strlcpy semantic is desired.
marius [Fri, 25 Mar 2011 13:08:19 +0000 (13:08 +0000)]
MFC: r219780
In case reading PCIR_MINGNT fails don't use it for calculating the
latency. This is more or less a theoretical problem though as it
typically indicates way bigger problems.
marius [Fri, 25 Mar 2011 13:03:13 +0000 (13:03 +0000)]
MFC: r219340, r219531, r219533
- Add support for TLS relocations.
- Emitt an error when encountering an unsupported and in case of the
kernel also for unaligned relocations.
- Fix R_SPARC_HIX22 and R_SPARC_LOX10 relocations. Apparently these are
hardly ever used.
marius [Fri, 25 Mar 2011 12:53:09 +0000 (12:53 +0000)]
MFC: r219548
Allocate the sound buffer DMA memory coherent. While NetBSD typically
also does this for sound drivers it's probably not necessary for all
combinations of controllers and drivers. However, given that our sound
drivers completely lack bus_dmamap_sync(9) calls this at least serves
as a workaround when enabling use of the IOMMU streaming buffers on
sparc64 and generally for arm and mips.
marius [Fri, 25 Mar 2011 12:50:50 +0000 (12:50 +0000)]
MFC: r219547
- Allocate the DMA memory shared between the host and the controller as
coherent.
- Constify the ti_devs table.
- Don't bother to set if_mtu to ETHERMTU, ether_ifattach() does that.
marius [Wed, 23 Mar 2011 22:33:29 +0000 (22:33 +0000)]
MFC: r219339, r219532
- Remove clause 3 and 4 from TNF licenses. [1]
- Add the _RF_X committed in r212998 (merged to stable/8 in r213478) also
to the tables in the sparc64 reloc.c in order reduce differences between
the kernel and the userland source. This results in no functional change
though.
- Consistently abbreviate the names of the relocations.
- End sentences with dots.
- Fix whitespace.
marius [Wed, 23 Mar 2011 20:56:56 +0000 (20:56 +0000)]
MFC: r219336
- Allocate the DMA memory used for the work area as coherent as at least
the ataahci(4) and atamarvell(4) drivers share it between the host and
the controller.
- Spell some zeros as BUS_DMA_WAITOK when used as bus_dmamem_alloc() flags.
marius [Wed, 23 Mar 2011 20:55:29 +0000 (20:55 +0000)]
MFC: r219335
- Allocate the DMA memory shared between the host and the controller as
coherent.
- Add some missing bus_dmamap_sync() calls. This includes putting such
calls before calling reply handlers instead of calling bus_dmamap_sync()
for the request queue from individual reply handlers as these handlers
generally read back updates by the controller.
ae [Tue, 22 Mar 2011 05:50:55 +0000 (05:50 +0000)]
MFC r219415 (adapted for stable/8):
Add -p option to `gpart show` command to show provider's names of
partitions instead of partition's indexes. This may be useful with
GPT partitioning scheme or EBR without GEOM_PART_EBR_COMPAT option.
MFC r219416:
It is better to sometimes have not aligned columns than
often have wrapped lines.
jhb [Fri, 18 Mar 2011 17:18:09 +0000 (17:18 +0000)]
MFC 219399:
When constructing a new cpuset, apply the parent cpuset's mask to the new
set's mask rather than the root mask. This was causing the root mask to
be modified incorrectly.
jhb [Fri, 18 Mar 2011 17:15:10 +0000 (17:15 +0000)]
MFC 219384:
The UFS dirhash code was attempting to update shared state in the dirhash
from multiple threads while holding a shared lock during a lookup operation.
This could result in incorrect ENOENT failures which could then be
permanently stored in the name cache.
Specifically, the dirhash code optimizes the case that a single thread is
walking a directory sequentially opening (or stat'ing) each file. It uses
state in the dirhash structure to determine if a given lookup is using the
optimization. If the optimization fails, it disables it and restarts the
lookup. The problem arises when two threads both attempt the optimization
and fail. The first thread will restart the loop, but the second thread
will incorrectly think that it did not try the optimization and will only
examine a subset of the directory entires in its hash chain. As a result,
it may fail to find its directory entry and incorrectly fail with ENOENT.
To make this safe for use with shared locks, simplify the state stored in
the dirhash and move some of the state (the part that determines if the
current thread is trying the optimization) into a local variable. One
result is that we will now try the optimization more often. We still
update the value under the shared lock, but it is a single atomic store
similar to i_diroff that is stored in UFS directory i-nodes for the
non-dirhash lookup.
jh [Fri, 18 Mar 2011 08:48:06 +0000 (08:48 +0000)]
MFC r210371:
Convert md(4) to use alloc_unr(9) and alloc_unr_specific(9) for unit
number allocation. The old approach had some problems such as it allowed
an overflow to occur in the unit number calculation.
jilles [Thu, 17 Mar 2011 22:47:52 +0000 (22:47 +0000)]
MFC r219256: Fix some _POSIX minimum/maximum values in limits.h:
* Some values changed in POSIX.1-2001; provide the former value if a program
requests compliance to an earlier version of POSIX. [1]
* Add missing _POSIX_CLOCKRES_MIN constant. This is a maximum value but
otherwise works the same as the minimum values.
PR: standards/104743
Submitted by: bde [1] (not exact #ifdefs, but the values)
edwin [Wed, 16 Mar 2011 03:34:12 +0000 (03:34 +0000)]
MFC of 219687, tzdata2011d:
- Pacific/Apia will have DST on 2 April instead of 3 April in 2011.
- Turkye will go to DST on 28 April instead of 27 April in 2011.
- Cuba will go to DST on 20 April in 2011.
r213535 | ken | 2010-10-07 15:56:10 -0600 (Thu, 07 Oct 2010) | 36 lines
Turn on serialization of task management commands going down to the
controller, but make it optional.
After a problem report from Andrew Boyer, it looks like the LSI
chip may have issues (the watchdog timer fired) if too many aborts
are sent down to the chip at the same time. We know that task
management commands are serialized, and although the manual doesn't
say it, it may be a good idea to just send one at a time.
But, since I'm not certain that this is necessary, add a tunable
and sysctl variable (hw.mps.%d.allow_multiple_tm_cmds) to control
the driver's behavior.
mps.c: Add support for the sysctl and tunable, and add a
comment about the possible return values to
mps_map_command().
mps_sas.c: Run all task management commands through two new
routines, mpssas_issue_tm_request() and
mpssas_complete_tm_request().
This allows us to optionally serialize task
management commands. Also, change things so that
the response to a task management command always
comes back through the callback. (Before it could
come via the callback or the return value.)
mpsvar.h: Add softc variables for the list of active task
management commands, the number of active commands,
and whether we should allow multiple active task
management commands. Add an active command flag.
mps.4: Describe the new sysctl/loader tunable variable.
Sponsored by: Spectra Logic Corporation
Reminded by: Hubert Tournier <hubert at frbsd dot org>
jilles [Tue, 15 Mar 2011 20:24:21 +0000 (20:24 +0000)]
MFC r218019: Do not trip a KASSERT if /dev/null cannot be opened for a
setuid program.
The fdcheckstd() function makes sure fds 0, 1 and 2 are open by opening
/dev/null. If this fails (e.g. missing devfs or wrong permissions),
fdcheckstd() will return failure and the process will exit as if it received
SIGABRT. The KASSERT is only to check that kern_open() returns the expected
fd, given that it succeeded.
Tripping the KASSERT is most likely if fd 0 is open but fd 1 or 2 are not.
netchild [Tue, 15 Mar 2011 13:19:26 +0000 (13:19 +0000)]
MFC r218497:
Linux' shm_open() fails because it wants to find some funky shmfs
to construct the full pathname. It starts to search at the default
mountpoint which is /dev/shm. If this fails it runs through fstab
and searches for shmfs and tmpfs. Whatever it finds will be
statfs()'ed to be checked for Linux' fs magic for shmfs (0x01021994).
Ideally our tmpfs should deliver this fs magic to Linux processes, but
as our tmpfs is considered to be an experimental feature we can not
assume that there is always a tmpfs available.
To make shared memory work in the Linuxulator, force the fs type of
/dev/shm (which can be a symlink) to match what Linux expects. The user
is responsible (info has to be added to the linux base ports and the docs)
to setup a suitable link for /dev/shm.
Noticed by: Andre Albsmeier <Andre.Albsmeier@siemens.com>
Submitted by: Andre Albsmeier <Andre.Albsmeier@siemens.com>
pluknet [Tue, 15 Mar 2011 08:20:59 +0000 (08:20 +0000)]
MFC kern.msgbufsize: r217688-217689,r217709,r218666-218667,r218913.
Note, that arm/{s3c2xx0,econa} exist only in head, thus not merged.
r217688:
Make MSGBUF_SIZE kernel option a loader tunable kern.msgbufsize.
r217689:
Add kern.msgbufsize default setting to /boot/defaults/loader.conf.
r217709,218666-218667,218913 by marcel, cognet:
Fix up for various arm subtargets: call init_param1() before we use
msgbufsize, now that the size of the message buffer is a tunable.
dim [Mon, 14 Mar 2011 22:51:51 +0000 (22:51 +0000)]
Partially MFC r209867 and r215439, to provide rudimentary support for
linking i386 (32 bit) executables on amd64, using gcc's -m32 option.
r209867 introduces the needed multilib options to gcc's multilib.h, but
was originally intended just for powerpc64.
r215439 teaches the linker to search in /usr/lib32 for elf_i386_fbsd
output, and amends r209867 to apply to amd64 too.
NOTE: this MFC does NOT provide full support for compiling and linking
all existing 32 bit programs on amd64, since /usr/include/machine still
contains amd64-specific headers. Though simple "Hello World" type
programs work, anything relying on machine-specific types might fail in
various interesting ways. You have been warned. :)
MFC r209867:
Teach our toolchain how to generate 64-bit PowerPC binaries. This fixes
a variety of bugs in binutils related to handling of 64-bit PPC ELF,
provides a GCC configuration for 64-bit PowerPC on FreeBSD, and
associated build systems tweaks.
Obtained from: projects/ppc64
MFC r215439:
Let gcc and ld know where to find 32 bit libraries on amd64.
jh [Mon, 14 Mar 2011 17:08:30 +0000 (17:08 +0000)]
MFC r209710:
Extend the kernel unit number allocator for allocating specific unit
numbers. This change adds a new function alloc_unr_specific() which
returns the requested unit number if it is free. If the number is
already allocated or out of the range, -1 is returned.
Update alloc_unr(9) manual page accordingly and add a MLINK for
alloc_unr_specific(9).
np [Mon, 14 Mar 2011 09:50:14 +0000 (09:50 +0000)]
MFC cxgbe(4) and fixes.
r218792:
cxgbe(4) - NIC driver for Chelsio T4 (Terminator 4) based 10Gb/1Gb adapters.
r219285:
Fix incorrect assertion.
r219286:
Resume tx immediately in response to an SGE egress update from the hardware.
r219287:
Upgrade the firmware on the card automatically if a better version is
available. Downgrade only for a major version mismatch.
r219288:
A txpkts work request should have a valid FID.
r219289:
Store the ifnet rather than the port_info in each txq and rxq struct.
r219290:
Tweaks for rx:
- everything related to LRO should be in #ifdef INET blocks
- reorder sge_iq's fields so that the most frequently used are all together
- pull all rx code into t4_intr_data directly
- let go of the ingress queue lock when passing up data
- refill the freelist only if it is short of at least 32 buffers
r219292:
Calculate how many descriptors can be reclaimed before calling
reclaim_tx_descs
r219293:
There is no need to hold an ingress queue's lock while processing its
descriptors
r219299:
Be sure to stay within the bounds of the mod_str array when displaying
the transceiver type.
r219392:
cxgbe shouldn't directly know of the UMA zones where network buffers
come from.
r219436:
Display holdoff timers and packet counts as a list of numbers.
kib [Sun, 13 Mar 2011 09:36:52 +0000 (09:36 +0000)]
MFC r219352:
The execution of the shebang script requires putting interpreter path,
possible option and script path in the place of argv[0] supplied to
execve(2). It is possible and valid for the substitution to be shorter
then the argv[0].
osa [Sat, 12 Mar 2011 14:57:10 +0000 (14:57 +0000)]
MFC r216697:
Fix typo (Pashka -> Paskha).
MFC r217025:
Fix typo: March -> September.
MFC r218471:
Fix Paskha and Paskha-specific holidays.
MFC r218473:
Always convert Paskha day from Julian (old) to Gregorian (new)
style by adding 13 days. Bug introduced in 1.13 revision.
MFC r218771:
Fix the beginning day of the Great Lent, it starts on Monday
for 7 weeks before Paskha.
Fix the Exaltation of the Holy Cross day.
Add more Twelve holidays (dvunadesyatye prazdniki).
MFC r218797:
Replace hard-coded value by Julian2Gregorian converter function.
MFC r219174:
Fix beginning day of the Carnival.
MFC r219175:
Expand the name of Palm Sunday holiday with more canonical Entry
of the Lord into Jerusalem.
Merge the Pentecost and Trinity Sunday holidays, they are synonyms.
Remove Body of Christ day, nonexistent holiday for Orthodox Church.
Fix typo in the name of Ioann The Baptist, introduced in previous
commit.
avg [Fri, 11 Mar 2011 19:27:31 +0000 (19:27 +0000)]
use even larger stack size for ZFS txg_sync_thread
While the stack size was larger than the default stack size on i386, it
was smaller than the default stack size on amd64 and apparently that
wasn't enough. So, bump the size to 4 pages. Upcoming ZFSv28 code uses
8 pages for this stack size.
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