Ed Maste [Fri, 1 Apr 2011 23:47:10 +0000 (23:47 +0000)]
Uuencode the sample "binary" firmware image file (instead of explicitly
adding \0 bytes). This is a technique that would be used in an actual
driver and is more suitable as an example.
Fix the delete-old/check-old targets to work with arbitrarily long
OLD_FILES/OLD_DIRS/OLD_LIBS lists.
If you specify enough WITHOUT_FOO flags, the argument list passed to the
shell will be too long. Using .for/.endfor make(1) "loop" will make the
parser of the Makefile explode. Hack around this with good old pipes.
Jack F Vogel [Fri, 1 Apr 2011 20:24:51 +0000 (20:24 +0000)]
Fix to an error condition case, when an mbuf chain
get's defragged due to a mapping failure the header
pointers will be invalidated and can result in a
TSO or other failure down the line. So, when the
remapping occurs force a retry thru the offload
calculation code. Thanks to Andrew Boyer for discovering
this and cooking up the fix!!
Jack F Vogel [Fri, 1 Apr 2011 18:48:31 +0000 (18:48 +0000)]
Change the refresh_mbuf logic slightly, add an inline
to calculate the outstanding descriptors that need to be
refreshed at any time, and use THAT in rxeof to determine
if refreshing needs to be done. Also change the local_timer
to simply fire off the appropriate interrupt rather than
schedule a tasklet, its simpler.
After the r219999 is merged to stable/8, rename fallocf(9) to falloc(9)
and remove the falloc() version that lacks flag argument. This is done
to reduce the KPI bloat.
Warner Losh [Fri, 1 Apr 2011 11:39:13 +0000 (11:39 +0000)]
Minor tweaks to the man page:
o Remove bogus ordering info
o 3C1 actually works, so remove that
o Add warning about making sure BIOS is configured properly for PnP
configured 3c509 cards.
Add support for executing the FreeBSD 1/i386 a.out binaries on amd64.
In particular:
- implement compat shims for old stat(2) variants and ogetdirentries(2);
- implement delivery of signals with ancient stack frame layout and
corresponding sigreturn(2);
- implement old getpagesize(2);
- provide a user-mode trampoline and LDT call gate for lcall $7,$0;
- port a.out image activator and connect it to the build as a module
on amd64.
- Freshened debug support code.
- Renamed several RX variable for more consistent usage.
- Fixed a potential problem when masking RX CQ producer value.
- Fixed DMA engine errors by increasing timeouts to 200ms for reads/writes.
- Improved some error reporting calls to include file name/line number.
- Various style(9) fixes.
Ryan Stone [Thu, 31 Mar 2011 21:33:33 +0000 (21:33 +0000)]
GNU awk does not output escaped newlines in multi-line printc statements. This
leads to compile errors when trying to compile firmware(9) stubs created with
gawk, as multiple #include statements end up on the same line. Replace the
multi-line printc statement that outputs all of the #includes with one printc
per #include. This allows modules compatible with firmware(9) to be cross-built
from a Linux machine without requiring the one true awk to be installed.
I've intentionally done the minimal set of changes necessary to make gawk
produce valid (but not pretty) C code, to reduce the churn and keep fw_stubs.awk
as readable as possible.
Fabien Thomas [Thu, 31 Mar 2011 15:23:32 +0000 (15:23 +0000)]
Optimisation in IPSEC(4):
- Remove contention on ISR during the crypto operation by using rwlock(9).
- Remove a second lookup of the SA in the callback.
Gain on 6 cores CPU with SHA1/AES128 can be up to 30%.
Ed Maste [Thu, 31 Mar 2011 15:12:40 +0000 (15:12 +0000)]
Avoid having a binary file in our source tree and instead create it at
build time, to avoid possible grief maintaining FreeBSD source in
alternative version control tools.
Ed Maste [Thu, 31 Mar 2011 14:33:27 +0000 (14:33 +0000)]
Remove $Log$ keyword and associated history, which can cause annoyance in
diffs in some cases. Revision control tools have a history command to
obtain this information.
Fabien Thomas [Thu, 31 Mar 2011 13:59:47 +0000 (13:59 +0000)]
Clearing the flag when preempting will let the preempted thread run
too much time. This can finish in a scheduler deadlock with ping-pong
between two threads.
One sample of this is:
- device lapic (to have a preemption point on critical_exit())
- options DEVICE_POLLING with HZ>1499 (to have lapic freq = hardclock freq)
- running a cpu intensive task (that does not enter the kernel)
- only one CPU on SMP or no SMP.
As requested by jhb@ 4BSD have received the same type of fix instead of
propagating the flag to the new thread.
John Baldwin [Thu, 31 Mar 2011 13:22:12 +0000 (13:22 +0000)]
Explicitly track the state of all known BARs for each PCI device. The PCI
bus driver will now remember the size of a BAR obtained during the initial
bus scan and use that size when doing lazy resource allocation rather than
resizing the BAR. The bus driver will now also report unallocated BARs to
userland for display by 'pciconf -lb'. Psuedo-resources that are not BARs
(such as the implicit I/O port resources for master/slave ATA controllers)
will no longer be listed as BARs in 'pciconf -lb'. During resume, BARs are
restored from their new saved state instead of having the raw registers
saved and restored across resume. This also fixes restoring BARs at
unusual loactions if said BAR has been allocated by a driver.
Add a constant for the offset of the ROM BIOS BAR in PCI-PCI bridges and
properly handle ROM BIOS BARs in PCI-PCI bridges. The PCI bus now also
properly handles the lack of a ROM BIOS BAR in a PCI-Cardbus bridge.
Andriy Gapon [Thu, 31 Mar 2011 08:14:51 +0000 (08:14 +0000)]
Revert r220032:linux compat: add SO_PASSCRED option with basic handling
I have not properly thought through the commit. After r220031 (linux
compat: improve and fix sendmsg/recvmsg compatibility) the basic
handling for SO_PASSCRED is not sufficient as it breaks recvmsg
functionality for SCM_CREDS messages because now we would need to handle
sockcred data in addition to cmsgcred. And that is not implemented yet.
Adrian Chadd [Thu, 31 Mar 2011 08:07:13 +0000 (08:07 +0000)]
Break out the ath PCI logic into a separate device/module.
Introduce the AHB glue for Atheros embedded systems. Right now it's
hard-coded for the AR9130 chip whose support isn't yet in this HAL;
it'll be added in a subsequent commit.
Kernel configuration files now need both 'ath' and 'ath_pci' devices; both
modules need to be loaded for the ath device to work.
Add rctl. It's used by racct to take user-configurable actions based
on the set of rules it maintains and the current resource usage. It also
privides userland API to manage that ruleset.
Sponsored by: The FreeBSD Foundation
Reviewed by: kib (earlier version)
John Baldwin [Wed, 30 Mar 2011 12:35:39 +0000 (12:35 +0000)]
Clamp the initial advertised receive window when responding to a SYN/ACK
to the maximum allowed window. Growing the window too large would cause
an underflow in the calculations in tcp_output() to decide if a window
update should be sent which would prevent the persist timer from being
started if data was pending and the other end of the connection advertised
an initial window size of 0.
Zack Kirsch [Wed, 30 Mar 2011 01:10:11 +0000 (01:10 +0000)]
This patch fixes the Experimental NFS client to properly deal with 32 bit or 64
bit fileid's in NFSv2 and NFSv3. Without this fix, invalid casting (and sign
extension) was creating problems for any fileid greater than 2^31.
We discovered this because we have test clusters with more than 2 billion
allocated files and 64-bit ino_t's (and friend structures).
Marius Strobl [Tue, 29 Mar 2011 19:48:03 +0000 (19:48 +0000)]
Allocate memory for a DMA method table only in case we need to override
the iommu(4) provided one, i.e. in case of Hummingbird and Sabre bridges,
otherwise just use the iommu(4) one. This also fixes a bug introduced in
r220039 which caused an empty DMA method table to be used for the second
of a pair of Psycho bridges.
Add racct. It's an API to keep per-process, per-jail, per-loginclass
and per-loginclass resource accounting information, to be used by the new
resource limits code. It's connected to the build, but the code that
actually calls the new functions will come later.
Sponsored by: The FreeBSD Foundation
Reviewed by: kib (earlier version)
Adrian Chadd [Tue, 29 Mar 2011 15:59:07 +0000 (15:59 +0000)]
According to ath9k recv.c, one shouldn't be doing self-linked descriptors
in the RX path when doing 11n and block-ack'ed frames. Apparently, the MAC
will loop over that self-linked descriptor and treat it as "good enough"
for (incorrectly!) ACKing the frames in the block-ack.
Until I figure out how to work around this issue in the future, this counter
will tell me if packet RX processing ever gets to the point where it's
touching the self-linked descriptor. If there's ever enough packets to get
to that point, BA's will be invalid and likely very unhappy.
John Baldwin [Tue, 29 Mar 2011 12:38:13 +0000 (12:38 +0000)]
- Enable an extra debugging bootverbose printf when probing ISA PNP cards
listing each card as it is found on non-PC98 (PC98 already had this).
- Increase the length of the DELAY() used before timing out while reading
PNP resource data.
Pyun YongHyeon [Mon, 28 Mar 2011 19:08:53 +0000 (19:08 +0000)]
Revise r220046 by introducing dc_netcfg_wait() which waits the end
of active DMA cycle. dc_setcfg() also has to wait until the DMA
engine is stopped so using a common function to handle the job is
better than duplicating the code.
Pyun YongHyeon [Mon, 28 Mar 2011 16:58:48 +0000 (16:58 +0000)]
Normally fxp(4) does not receive bad frames but promiscuous mode
makes controller to receive bad frames and i82557 will also receive
bad frames since fxp(4) have to receive VLAN oversized frames. If
fxp(4) encounter DMA overrun error, the received frame size would
be 0 so the actual frame size after checksum field extraction the
length would be negative(-2). Due to signed/unsigned comparison
used in driver, frame length check did not work for DMA overrun
frames. Correct this by casting it to int.
While I'm here explicitly check DMA overrun error and discard the
frame regardless of result of received frame length check.
Use ${NANO_WORLDDIR}/var/empty as copy source since it has no schg flag set.
Copying over /var/empty's schg flag had unpleasant side effects (schg flag on /etc and /cfg)
during nanobsd boot before.
Alan Cox [Mon, 28 Mar 2011 06:35:17 +0000 (06:35 +0000)]
The new binutils has correctly redefined MAXPAGESIZE on amd64 as 0x200000
instead of 0x100000. As a side effect, an amd64 kernel now loads at
physical address 0x200000 instead of 0x100000. This is probably for the
best because it avoids the use of a 2MB page mapping for the first 1MB of
the kernel that also spans the fixed MTRRs. However, getmemsize() still
thinks that the kernel loads at 0x100000, and so the physical memory between
0x100000 and 0x200000 is lost. Fix this problem by replacing the hard-wired
constant in getmemsize() by a symbol "kernphys" that is defined by the
linker script.
Nathan Whitehorn [Sun, 27 Mar 2011 23:43:32 +0000 (23:43 +0000)]
Add mirror selection for FTP installs. To support TBEMD installs
(e.g. powerpc64), this looks in a slightly different default path than now,
specifying both $MACHINE and $MACHINE_ARCH:
MIRROR/pub/FreeBSD/releases/`uname -p`/`uname -m`/`uname -r`
How to handle TBEMD properly probably merits some more discussion, but,
since no such 9.0-CURRENT distfiles exist at the moment, all existing
mirrors presently fail anyway.
Mikolaj Golub [Sun, 27 Mar 2011 19:56:55 +0000 (19:56 +0000)]
In g_gate_create() there is a window between when g_gate_softc is
registered in g_gate_units array and when its sc_provider field is
filled. If during this period g_gate_units is accessed by another
thread that is checking for provider name collision the crash is
possible.
Fix this by adding sc_name field to struct g_gate_softc. In
g_gate_create() when g_gate_softc is created but sc_provider is still
not sc_name points to provider name stored in the local array.
Josh Paetzel [Sun, 27 Mar 2011 16:57:54 +0000 (16:57 +0000)]
Fix a syntax error in a little-used function.
Replace expr with $(())
Replace grep > /dev/null with grep -q
Replace "$?" = "0" with $? -eq 0 in tests
Consolidate export statements with variable assignment
Replace tests for ! -z with -n
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