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66083 Commits

Author SHA1 Message Date
Attilio Rao
0e9eb108f0 Cleanup lockmgr interface and exported KPI:
- Remove the "thread" argument from the lockmgr() function as it is
  always curthread now
- Axe lockcount() function as it is no longer used
- Axe LOCKMGR_ASSERT() as it is bogus really and no currently used.
  Hopefully this will be soonly replaced by something suitable for it.
- Remove the prototype for dumplockinfo() as the function is no longer
  present

Addictionally:
- Introduce a KASSERT() in lockstatus() in order to let it accept only
  curthread or NULL as they should only be passed
- Do a little bit of style(9) cleanup on lockmgr.h

KPI results heavilly broken by this change, so manpages and
FreeBSD_version will be modified accordingly by further commits.

Tested by: matteo
2008-01-24 12:34:30 +00:00
Pawel Jakub Dawidek
79bc018dd7 - Reduce how much ZFS caches by default. This is another change to mitigate
'kmem_map too small panics'.
- Print two warnings if there is not enough memory and not enough address
  space.
- Improve comment.
2008-01-24 11:24:16 +00:00
Pawel Jakub Dawidek
44ce1efd91 Change type of kmem_used() and kmem_size() functions to uint64_t, so it
doesn't overflow in arc.c in this check:

	if (kmem_used() > (kmem_size() * 4) / 5)
		return (1);

With this bug ZFS almost doesn't cache.

Only 32bit machines are affected that have vm.kmem_size set to values >=1GB.

Reported by:	David Taylor <davidt@yadt.co.uk>
2008-01-24 11:21:54 +00:00
Bjoern A. Zeeb
79ba395267 Replace the last susers calls in netinet6/ with privilege checks.
Introduce a new privilege allowing to set certain IP header options
(hop-by-hop, routing headers).

Leave a few comments to be addressed later.

Reviewed by:	rwatson (older version, before addressing his comments)
2008-01-24 08:25:59 +00:00
Bjoern A. Zeeb
107d12440a Differentiate between addifaddr and delifaddr for the privilege check.
Reviewed by:	rwatson
MFC after:	2 weeks
2008-01-24 08:14:38 +00:00
Scott Long
74018414bf Many improvements that have been collected over time:
- Improve error handling for load operations.
- Fix a memory corruption bug when using certain linux management apps.
- Allocate all commands up front to avoid OOM deadlocks later on.
2008-01-24 07:26:53 +00:00
Robert Watson
109058b094 tcp_usrreq.c:1.313 removed tcbinfo locking from tcp_usr_accept(), which
while in principle a good idea, opened us up to a race inherrent to
the syncache's direct insertion of incoming TCP connections into the
"completed connection" listen queue, as it transpires that the socket
is inserted before the inpcb is fully filled in by syncache_expand().
The bug manifested with the occasional returning of 0.0.0.0:0 in the
address returned by the accept() system call, which occurred if accept
managed to execute tcp_usr_accept() before syncache_expand() had copied
the endpoint addresses into inpcb connection state.

Re-add tcbinfo locking around the address copyout, which has the effect
of delaying the copy until syncache_expand() has finished running, as
it is run while the tcbinfo lock is held.  This is undesirable in that
it increases contention on tcbinfo further, but a more significant
change will be required to how the syncache inserts new sockets in
order to fix this and keep more granular locking here.  In particular,
either more state needs to be passed into sonewconn() so that
pru_attach() can fill in the fields *before* the socket is inserted, or
the socket needs to be inserted in the incomplete connection queue
until it is actually ready to be used.

Reported by:	glebius (and kris)
Tested by:	glebius
2008-01-23 21:15:51 +00:00
Alexander Motin
9c10d11388 Fix bundle xmit octets stats for packet-split operation mode. 2008-01-23 11:47:09 +00:00
Maxim Konovalov
ff7aea9b97 o Add boot, gdb, nfsserver and opencrypto dirs to CSCOPEDIRS; sort. 2008-01-23 08:50:34 +00:00
Jeff Roberson
317da70593 - sched_prio() should only adjust tdq_lowpri if the thread is running or on
a run-queue.  If the priority is numerically raised only change lowpri
   if we're certain it will be correct.  Some slop is allowed however
   previously we could erroneously raise lowpri for an idle cpu that a
   thread had recently run on which lead to errors in load balancing
   decisions.
2008-01-23 03:10:18 +00:00
Andrey A. Chernov
0a8390f726 Bump FreeBSD_version after adding "ASCII" encoding to libc 2008-01-23 00:04:18 +00:00
Andrew Gallatin
b0f7b92207 Take advantage of the new physically contiguous 9K jumbos in 8. 2008-01-22 22:04:31 +00:00
Robert Watson
9d3e5c0e2b Put "coda_rdwr: Internally Opening" printf generated by in-kernel writes
to files, such as ktrace output, under CODA_VERBOSE.  Otherwise, each
such call to VOP_WRITE() results in a kernel printf.

MFC after:	3 days
Obtained from:	NetBSD
2008-01-21 21:39:08 +00:00
Robert Watson
e866951b59 Replace references to VOP_LOCK() w/o LK_RETRY to vn_lock() with LK_RETRY,
avoiding extra error handling, or in some cases, missing error handling.

MFC after:	3 days
Discussed with:	kib
2008-01-21 21:19:07 +00:00
Ruslan Ermilov
7716c3a1f9 Add copyrights.
PR:	119136
2008-01-21 13:26:33 +00:00
Pyun YongHyeon
9a508b89dc Fix build. 2008-01-21 09:51:28 +00:00
Pyun YongHyeon
23f7072d31 Uncomment sf(4), sf(4) should work on all architectures. 2008-01-21 06:51:25 +00:00
Pyun YongHyeon
f2ff94851b Overhaul sf(4) to make it run on all architectures and implement
checksum offoload by downloading AIC-6915 firmware. Changes are
 o Header file cleanup.
 o Simplified probe logic.
 o s/u_int{8,16,32}_t/uint{8,16,32}_t/g
 o K&R -> ANSI C.
 o In register access function, added support both memory mapped and
   IO space register acccess. The function will dynamically detect
   which method would be choosed.
 o sf_setperf() was modified to support strict-alignment
   architectures.
 o Use SF_MII_DATAPORT instead of hardcoded value 0xffff.
 o Added link state/speed, duplex changes handling task q. The task q
   is also responsible for flow control settings.
 o Always hornor link up/down state reported by mii layers. The link
   state information is used in sf_start() to determine whether we
   got a valid link.
 o Added experimental flow-control setup. It was commented out but
   will be activated once we have flow-cotrol infrastructure in mii
   layer.
 o Simplify IFF_UP/IFCAP_POLLING and IFF_PROMISC handling logic. Rx
   filter always honors promiscuous mode.
 o Implemented suspend/resume methods.
 o Reorganized Rx filter routine so promiscuous mode changes doesn't
   require interface re-initialization.
 o Reimplemnted driver probe routine such that it looks for matching
   device from supported hardware list table. This change will help to
   add newer hardware revision to the driver.
 o Use ETHER_ADDR_LEN instead of hardcoded value.
 o Prefer memory space register mapping over I/O space as the hardware
   requires lots of register access to get various consumer/producer
   index. Failing to get memory space mapping, sf(4) falls back to I/O
   space mapping. Use of memory space register mapping requires
   somewhat large memory space(512K), though.
 o Switch to simpler bus_{read,write}_{1,2,4}.
 o Use PCIR_BAR macro to get BARs.
 o Program PCI cache line size if the cache line size was set to 0
   and enable PCI MWI.
 o Add a new sysctl node 'dev.sf.N.stats' that shows various MAC
   counters for Rx/Tx statistics.
 o Add a sysctl node to configure interrupt moderation timer. The
   timer defers interrupts generation until time specified in timer
   control register is expired. The value in the timer register is in
   units of 102.4us. The allowable range for the timer is 0 - 31
   (0 ~ 3.276ms).
   The default value is 1(102.4us). Users can change the timer value
   with dev.sf.N.int_mod sysctl(8) variable/loader(8) tunable.
 o bus_dma(9) conversion
    - Enable 64bit DMA addressing.
    - Enable 64bit descriptor format support.
    - Apply descriptor ring alignment requirements(256 bytes alignment).
    - Apply Rx buffer address alignment requirements(4 bytes alignment).
    - Apply 4GB boundary restrictions(Tx/Rx ring and its completion ring
      should live in the same 4GB address space.)
    - Set number of allowable number of DMA segments to 16. In fact,
      AIC-6915 doesn't have a limit for number of DMA segments but it
      would be waste of Tx descriptor resource if we allow more than 16.
    - Rx/Tx side bus_dmamap_load_mbuf_sg(9) support.
    - Added alignment fixup code for strict-alignment architectures.
    - Added endianness support code in Tx/Rx descriptor access.
    With these changes sf(4) should work on all platforms.
 o Don't set if_mtu in device attach, it's handled in ether_ifattach.
 o Use our own callout to drive watchdog timer.
 o Enable VLAN oversized frames and announce sf(4)'s VLAN capability
   to upper layer.
 o In sf_detach(), remove mtx_initialized KASSERT as it's not possible
   to get there without initialzing the mutex. Also mark that we're
   about to detaching so active bpf listeners do not panic the system.
 o To reduce PCI register access cycles, Rx completion ring is
   directly scanned instead of reading consumer/producer index
   registers. In theory, Tx completion ring also can be directly
   scanned. However the completion ring is composed of two types
   completion(1 for Tx done and 1 and DMA done). So reading producer
   index via register access would be more safer way to detect the
   ring wrap-around.
 o In sf_rxeof(), don't use m_devget(9) to align recevied frames. The
   alignment is required only for strict-alignment architectures and
   now the alignment is handled by sf_fixup_rx() if required. The
   removal of the copy operation in fast path should increase Rx
   performance a lot on non-strict-alignemnt architectures such as
   i386 and amd64.
 o In sf_newbuf(), don't set descriptor valid bit as sf(4) is
   programmed to run with normal mode. In normal mode, the valid bit
   have no meaning. The valid bit should be used only when the
   hardware uses polling(prefetch) mode. The end of descriptor queue
   bit could be used if needed, but sf(4) relys on auto-wrapping of
   hardware on 256 descriptor queue entries so both valid and
   descriptor end bit are not used anymore.
 o Don't disable generation of Tx DMA completion as said in datasheet
   and use the Tx DMA completion entry instead of relying on Tx done
   completion entry. Also added additional Tx completion entry type
   check in Tx completion handler.
 o Don't blindly reset watchdog timer in sf_txeof(). sf(4) now unarm
   the the watchdog only if there are no active Tx descriptors in Tx
   queue.
 o Don't manually update various counters in driver, instead, use
   built-in MAC statistic registers to update them. The statistic
   registers are updated in every second.
 o Modified Tx underrun handlers to increase the threshold value
   in units of 256 bytes. Previously it used to increase 16 bytes
   at a time which seems to take too long to stabalize whenever Tx
   underrun occurrs.
 o In interrupt handler, additional check for the interrupt is
   performed such that interrupts only for this device is allowed to
   process descriptor rings. Because reading SF_ISR register clears
   all interrtups, nuke writing to a SF_ISR register.
 o Tx underrun is abonormal condition and SF_ISR_ABNORMALINTR includes
   the interrupt. So there is no need to inspect the Tx underrun again
   in main interrupt loop.
 o Don't blindly reinitialize hardware for abnormal interrupt
   condition. sf(4) reintializes the hardware only when it encounters
   DMA error which requires an explicit hardware reinitialization.
 o Fix a long standing bug that incorrectly clears MAC statistic
   registers in sf_init_locked.
 o Added strict-alignment safe way of ethernet address reprogramming
   as IF_LLADDR may return unaligned address.
 o Move sf_reset() to sf_init_locked in order to always reset the
   hardware to a known state prior to configuring hardware.
 o Set default Rx DMA, Tx DMA paramters as shown in datasheet.
 o Enable PCI busmaster logic and autopadding for VLAN frames.
 o Rework sf_encap.
     - Previously sf(4) used to type 0 of Tx descriptor with padding
       enabled to store driver private data. Emebedding private data
       structures into descriptors is bad idea as the structure size
       would be different between 64bit and 32bit architectures. The
       type 0 descriptor allows fixed number of DMA segments in
       a descriptor format and provides relatively simple interface to
       manage multi-fragmented frames.
       However, it wastes lots of Tx descriptors as not all frames are
       fragmented as the number of allowable segments in a descriptor.
     - To overcome the limitation of type 0 descriptor, switch to type
       2 descriptor which allows 64bit DMA addressing and can handle
       unliumited number of fragmented DMA segments. The drawback of
       type 2 descriptor is in its complexity in managing descriptors
       as driver should handle the end of Tx ring manually.
    -  Manually set Tx desciptor queue end mark and record number of
       used descriptors to reclaim used descriptors in sf_txeof().
 o Rework sf_start.
     - Honor link up/down state before attempting transmission.
     - Because sf(4) uses only one of two Tx queues, use low priority
       queue instead of high one. This will remove one shift operation
       in each Tx kick command.
     - Cache last produder index into softc such that subsequenet Tx
       operation doesn't need to access producer index register.
 o Rewrote sf_stats_update to include all available MAC statistic
   counters.
 o Employ AIC-6915 firmware from Adaptec and implement firmware
   download routine and TCP/UDP checksum offload.
   Partial checksum offload support was commented out due to the
   possibility of firmware bug in RxGFP.
   The firmware can strip VLAN tag in Rx path but the lack of firmware
   assistance of VLAN tag insertion in transmit side made it useless
   on FreeBSD. Unlike checksum offload, FreeBSD requires both Tx/Rx
   hardware VLAN assistance capability. The firmware may also detect
   wakeup frame and can wake system up from states other than D0.
   However, the lack of wakeup support form D3cold state keep me from
   adding WOL capability. Also detecting WOL frame requires firmware
   support but it's not yet known to me whether the firmware can
   process the WOL frame.
 o Changed *_ADDR_HIADDR to *_ADDR_HI to match other definitions of
   registers.
 o Added definitioan to interrupt moderation related constants.
 o Redefined SF_INTRS to include Tx DMA done and DMA errors. Removed
   Tx done as it's not needed anymore.
 o Added definition for Rx/Tx DMA high priority threshold.
 o Nuked unused marco SF_IDX_LO, SF_IDX_HI.
 o Added complete MAC statistic register definition.
 o Modified sf_stats structure to hold all MAC statistic regiters.
 o Nuke various driver private padding data in Tx/Rx descriptor
   definition. sf(4) no longer requires private padding. Also remove
   unused padding related definitions. This greatly simplifies
   descriptor manipulation on 64bit architectures.
 o Becase we no longer pad driver private data into descriptor,
   remove deprecated/not-applicable comments for padding.
 o Redefine Rx/Tx desciptor status. sf(4) doesn't use bit fileds
   anymore to support endianness.

Tested by:	bruffer (initial version)
2008-01-21 06:38:23 +00:00
Pyun YongHyeon
0e24813a2e It seems that the firmware for TxGFP does not work at all. I could
be wrong but I couldn't find a way to make it work. In addition, the
number of TxGFP instruction does not match the firmware image size,
so I guess something was wrong when Adaptec generated the TxGFP
firmware from their DDK.

According to datasheet, normally, the first GFP instruction would be
opcode C, WaitForStartOfFrame, to synchronize checksumming with
incoming frame. But the first instruction in TxGFP firmware was
opcode 1, BrToImmIfTrue, so it could not process checksum correctly,
I guess. Checking for RxGFP firmware also indicates the first
instruction should be opcode C. Since the number of instructions in
TxGFP firmware lacks exactly one instruction, I prepended the opcode
C to TxGFP firmware image. With this change, the resulting image size
perfectly matches with the nummber of instructions and Tx checksum
offload seems to work without problems.
2008-01-21 05:09:07 +00:00
Pyun YongHyeon
c5d7502930 Import AIC-6915 firmware for GFP from Adaptec.
Special thanks to bruffer to send the firmware image to me.

Submitted by:	gibbs via bruffer
2008-01-21 05:02:44 +00:00
Pyun YongHyeon
1171c67d01 sf(4) was repocopied to src/sys/dev/sf. 2008-01-21 04:45:58 +00:00
Pyun YongHyeon
6bf42daa74 Update file list and Makefile after repocopying sf(4) from
src/sys/pci to src/sys/dev.
2008-01-21 04:27:32 +00:00
Pyun YongHyeon
1dede5975a Forced commit to note that sf(4) was repocopied from sys/pci
and modified for its new location.
2008-01-21 04:23:47 +00:00
Robert Watson
20c6fe828a Regenerate. 2008-01-20 23:44:24 +00:00
Robert Watson
6c902059f2 Use audit events AUE_SHMOPEN and AUE_SHMUNLINK with new system calls
shm_open() and shm_unlink().  More auditing will need to be done for
these calls to capture arguments properly.
2008-01-20 23:43:06 +00:00
Robert Watson
07dd4a31b5 Export a type for POSIX SHM file descriptors via kern.proc.filedesc as
used by procstat, or SHM descriptors will show up as type unknown in
userspace.
2008-01-20 19:55:52 +00:00
Bjoern A. Zeeb
ab569b9c05 Correct the commented out debugging printf()s in REPLACE and NEXT macros.
ip6_sprintf() needs a buffer as first argument these days.

MFC after:	2 weeks
2008-01-20 10:08:15 +00:00
Kip Macy
9619451708 Re-enable pcpu caching by default make sysctl R/W 2008-01-19 22:47:43 +00:00
David Schultz
2d6d5e1604 Correct the visibility macro surrounding SIGSYS.
Submitted by:	Andriy Gapon <avg@icyb.net.ua>
2008-01-19 21:41:31 +00:00
Robert Watson
9440b9f7ea Remove unused oldhash definition from Coda namecache.
MFC after:	3 days
2008-01-19 19:21:07 +00:00
Attilio Rao
6e8f9331d7 Bump FreeBSD_version in order to reflect introduction of
lockmgr_recursed(), BUF_RECURSED(), BUF_ISLOCKED() and trimming out of
BUF_REFCNT().
2008-01-19 17:39:25 +00:00
Attilio Rao
d638e093d6 - Introduce the function lockmgr_recursed() which returns true if the
lockmgr lkp, when held in exclusive mode, is recursed
- Introduce the function BUF_RECURSED() which does the same for bufobj
  locks based on the top of lockmgr_recursed()
- Introduce the function BUF_ISLOCKED() which works like the counterpart
  VOP_ISLOCKED(9), showing the state of lockmgr linked with the bufobj

BUF_RECURSED() and BUF_ISLOCKED() entirely replace the usage of bogus
BUF_REFCNT() in a more explicative and SMP-compliant way.
This allows us to axe out BUF_REFCNT() and leaving the function
lockcount() totally unused in our stock kernel. Further commits will
axe lockcount() as well as part of lockmgr() cleanup.

KPI results, obviously, broken so further commits will update manpages
and freebsd version.

Tested by: kris (on UFS and NFS)
2008-01-19 17:36:23 +00:00
Robert Watson
de5910460a Improve default vnode operation handling for Coda:
- Don't specify vnode operations for mknod, lease, and advlock--let them
  fall through to vop_default.

- Implement vop_default with &default_vnodeops, rather than with VOP_PANIC,
  so that unimplemented vnode operations are handled in more sensible ways
  than panicking, such as EOPNOTSUPP on ACL queries generated by bsdtar,
  or mknod.

MFC after:	3 days
2008-01-19 17:12:44 +00:00
Robert Watson
aeab4f72a0 Rework coda_statfs(): no longer need to zero the statfs structure or
fill out all fields, just fill out the ones the file system knows
about.  Among other things, this causes the outpuf of "mount" and
"df" to make quite a bit more sense as /dev/cfs0 is specified as the
mountfrom name.

MFC after:	3 days
2008-01-19 16:39:14 +00:00
Robert Watson
82bf4517ef Zero mi_rotovp and coda_ctlvp immediately after calling vrele() on the
vnodes during coda_unmount() in order to detect errant use of them
after the vnode references may no longer be valid.

No need to clear the VV_ROOT flag on mi_rootvp flag (especially after
the vnode reference is no longer valid) as this isn't done on other
file systems.

MFC after:	3 days
2008-01-19 15:40:46 +00:00
Robert Watson
96b1e9b015 Don't acquire an additional vnode reference to a vnode when it is opened
and then release it when it is closed: we rely on the caller to keep the
vnode around with a valid reference.  This avoids vrele() destroying the
vnode vop_close() is being called from during a call to vop_close(), and
a crash due to lockmgr recursing the vnode lock when a Coda unmount
occurs.

MFC after:	3 days
2008-01-19 15:39:10 +00:00
Robert Watson
76898521e8 Don't declare functions as extern.
Move all extern variable definitions to associated .h files, move some
extern variable definitions between include files to place them more
appropriately.

MFC after:	3 days
2008-01-19 14:32:44 +00:00
Robert Watson
11cc4ab95a Use VOP_NULL rather than VOP_PANIC for Coda's vop_print routine, so as
to avoid panicking in DDB show lockedvnods.

MFC after:	3 days
2008-01-19 13:41:56 +00:00
Robert Watson
d883e8e720 Lock the new directory vnode returned by coda_mkdir(), as this is required
by FreeBSD's vnode locking protocol.

MFC after:	3 days
2008-01-19 13:29:14 +00:00
Robert Watson
6885d70dfe Borrow the VM object associated with an underlying cache vnode with the
Coda vnode derived from it, in the style of nullfs.  This allows files
in the Coda file system to be memory-mapped, such as with execve(2) or
mmap(2).

MFC after:	3 days
Reported by:	Rune <u+openafsdev-sr55 at chalmers dot se>
2008-01-19 13:27:14 +00:00
Jung-uk Kim
86543395c1 Add a flag for Ethernet@WireSpeed capability and correct chip revisions.
The idea was taken from OpenBSD and cross-referenced with Linux driver.
2008-01-18 22:09:50 +00:00
Jung-uk Kim
e4be3198af Fix mbuf pool watermark configuration (mismerged from OpenBSD in 1.132).
Submitted by:	sephe
MFC after:	3 days
2008-01-18 20:33:21 +00:00
Christian S.J. Peron
0f7e334a95 Fix gratuitous whitespace bug
MFC after:	1 week
Obtained from:	TrustedBSD Project
2008-01-18 19:57:21 +00:00
Christian S.J. Peron
cd109a68ae Add a case for AUE_LISTEN. This removes the following console error message:
"BSM conversion requested for unknown event 43140"

It should be noted that we need to audit the fd argument for this system
call.

Obtained from:	TrustedBSD Project
MFC after:	1 week
2008-01-18 19:50:34 +00:00
Robert Watson
8c96f9c193 Move unlock of global UNIX domain socket lock slightly lower in
unp_connect(): it is expected to return with the lock held, and two
possible error paths otherwise returned with it unlocked.

The fix committed here is slightly different from the patch in the
PR, but along an alternative line suggested in the PR.

PR:		119778
MFC after:	3 days
Submitted by:	James Juran <james dot juran at baesystems dot com>
2008-01-18 19:16:03 +00:00
Konstantin Belousov
81aa963bc7 In the rev. 1.153, the one place for converting minor number to unit
was missed. As result, pty_create_slave() may index out of the names[]
bounds, creating wrong slave tty names.

Tested by:	kensmith
Reviewed by:	jhb
MFC after:	3 days
2008-01-18 18:07:04 +00:00
Remko Lodder
af3e1b9f22 Use nfsrv_destroycache() only once, else it crashes the server.
PR:		kern/118152
Submitted by:	Bjoern Groenvall <bg at sics dot se>
Approved by:	imp (mentor, a while ago already), jhb
MFC After:	3 days
2008-01-18 17:03:36 +00:00
Julian Elischer
ce3b9e3aea refactor code so it can run in a chroot without having to have /dev/mounted
MFC After: 1 week
2008-01-18 17:02:14 +00:00
Doug Ambrisko
ecefd670f5 Style changes from avatar.
Submitted by:	avatar
2008-01-18 16:34:18 +00:00
Doug Ambrisko
f0e1e8d9fb First real attempt at proper locking. The locking is a little complicated
since the the command and data that is being built to be sent to or read
from the HW lives in the softc.  Commands are later run via an_setdef etc.
In the ioctl path various references are kept to the data stored in
the softc so it needs to be protected.  Almost think of the command
in the softc a global variable since it essentially is.  Since locking
wasn't done in this type of context the commands would get corrupted.

Thanks to avatar@ for catching some lock issues and dhw@ for testing.

Things are a lot more stable except for the MPI-350 cards.  My an(4)
remote laptop stays on the network now.

The driver should be changed so that it uses private memory that is passed
to the functions that talk to the card.  Then only those functions would
really need to grab locks.

Reviewed by:	avatar@
2008-01-18 16:31:24 +00:00
David Xu
0e17ccbe36 Make sure reading td_runtime in critical section since thread may be
preempted and td_runtime will be modified.
2008-01-18 13:00:28 +00:00
Robert Watson
1e8f5ffa35 In tcp_ctloutput(), don't hold the inpcb lock over sooptcopyin(), rather,
drop the lock and then re-acquire it, revalidating TCP connection state
assumptions when we do so.  This avoids a potential lock order reversal
(and potential deadlock, although none have been reported) due to the
inpcb lock being held over a page fault.

MFC after:	1 week
PR:		102752
Reviewed by:	bz
Reported by:	Václav Haisman <v dot haisman at sh dot cvut dot cz>
2008-01-18 12:19:50 +00:00
Konstantin Belousov
61af195933 udf_vget() shall vgone() the vnode when the file_entry cannot be allocated
or read from the volume. Otherwise, half-constructed vnode could be found
later and cause panic when accessed.

PR:	118322
MFC after:	1 week
2008-01-18 12:09:54 +00:00
Andrew Thompson
fdf229b124 Remove a chunk of duplicated code, test the destination address against the
bridge the same way we check member interfaces.
2008-01-18 09:34:09 +00:00
Pyun YongHyeon
7eb12306d6 Use m_collapse(9) to collapse mbuf chains instead of relying on
shortest possible chain of mbufs of m_defrag(9). What we want is
chains of mbufs that can be safely stored to a Tx descriptor which
can have up to STGE_MAXTXSEGS mbufs. The ethernet controller does
not need to align Tx buffers on 32bit boundary. So the use of
m_defrag(9) was waste of time.
2008-01-18 08:32:08 +00:00
David Xu
00d6ac63cd Add POSIX clock id CLOCK_THREAD_CPUTIME_ID, this can be used to measure
per-thread runtime in user code.
2008-01-18 07:04:42 +00:00
Andrew Thompson
905925d349 IEEE 802.1D-2004 states, frames containing any of the group MAC Addresses
specified in Table 7-10 in their destination address field shall not be relayed
by the Bridge. Add a check in bridge_forward() to adhere to this.

PR:		kern/119744
2008-01-18 00:19:10 +00:00
John Baldwin
304a4c6fb1 - Retire npe_defrag(), gem_defrag(), msk_defrag(), nfe_defrag(), and
re_defrag() and use m_collapse() instead.
- Replace a reference to ath_defrag() in a comment in if_wpi.c with
  m_collapse().
2008-01-17 23:37:47 +00:00
John Baldwin
2c17901060 Add 'compat_freebsd[4567]' features corresponding to the kernel options
COMPAT_FREEBSD[4567].

MFC after:	1 week
Requested by:	kris
2008-01-17 22:46:32 +00:00
Kip Macy
8ec3680eb5 - remove bogus_imm counter
- disable pcpu cluster cache by default until reference counting is handled
  correctly for held clusters - can be re-enable by sysctl
2008-01-17 21:25:58 +00:00
Sam Leffler
eeb76a1889 promote ath_defrag to m_collapse (and retire private+unused
m_collapse from cxgb)

Reviewed by:	pyun, jhb, kmacy
MFC after:	2 weeks
2008-01-17 21:25:09 +00:00
John Baldwin
cff3c4fdc5 Remove a conditional that is always true.
MFC after:	2 weeks
2008-01-17 20:15:15 +00:00
John Baldwin
9a57f6280c Use pause(9) instead of a tsleep() on a stack variable.
MFC after:	1 week
2008-01-17 20:11:58 +00:00
John Baldwin
c05655bfda Use cpu_spinwait() (i.e., "pause") when spinning on rdtsc during DELAY().
MFC after:	1 week
2008-01-17 18:59:38 +00:00
Alan Cox
6634dbbde4 Retire PMAP_DIAGNOSTIC. Any useful diagnostics that were conditionally
compiled under PMAP_DIAGNOSTIC are now KASSERT()s.  (Note: The kernel
option DIAGNOSTIC still disables inlining of certain pmap functions.)

Eliminate dead code from pmap_enter().  This code implemented an assertion.
On i386, an equivalent check is already implemented.  However, on amd64,
a small change is required to implement an equivalent check.

Eliminate \n from a nearby panic string.

Use KASSERT() to reimplement pmap_copy()'s two assertions.
2008-01-17 18:25:52 +00:00
Bruce Evans
a4b679d859 Translate from the i386. All FP constants and operations are evaluated
in the range and precision of their type(s) on amd64, but FLT_EVAL_METHOD
said that they were evalated in the "interesting" (buggy) i387 methods.
float_t was broken compatibly with FLT_EVAL_METHOD.

These definitions seem to be broken on powerpc and possibly on arm.
float_t is float on powerpc with gcc [-notraditional] according to
glibc, and FLT_EVAL_METHOD is marked with XXX on arm.
2008-01-17 13:12:46 +00:00
Olivier Houchard
10457dbaf2 Unbreak build by adding the missing parameter to pmap_enter(). 2008-01-17 12:41:59 +00:00
Andrew Thompson
eaf56834f1 Sync from OpenBSD r1.118, nuke clause 3 & 4. 2008-01-17 09:46:16 +00:00
Kip Macy
4f6a96ae5b Fix lock ordering panic by not calling ether_ioctl with port lock held
Reported by: rrs
2008-01-16 21:33:34 +00:00
John Baldwin
f831d6e073 Add a header containing constants for the various HPET registers and their
fields and update the code to match.  The PR served more as an inspiration
than providing the actual diffs.

MFC after:	1 week
PR:		kern/112544
2008-01-16 18:47:07 +00:00
John Baldwin
8ffbe1559e Add a set of regression tests for the POSIX shm API (shm_open(2) and
shm_unlink(2)).
2008-01-16 15:51:24 +00:00
Remko Lodder
149e9017bd Dont accidentally remove a filesocket which is still in use. This gives
problems when the DRM driver is loaded and the AIXGL extension is loaded
, the AIXGL driver requests a drm_close and this will cause the radeon
driver to fail while starting X windows.

PR:		kern/114688
Submitted by:	vehemens <vehemens at verizon dot net>
Prodded by:	Robert Noland
Approved by:	imp (mentor, a while ago already), anholt
MFC After:	1 week
2008-01-16 13:54:40 +00:00
Giorgos Keramidas
82d16f31df Bump manpage date for rev 1.27
MFC after:	3 days
2008-01-16 07:00:55 +00:00
Giorgos Keramidas
b8b4c607d8 Document that loader(8) stops reading `loader.conf' when it
encounters a syntax error, and add a tip about adding first
the `vital' options and then experimental ones.

PR:		docs/119658
Submitted by:	Julian Stacey, jhs at berklix.org
2008-01-16 06:59:22 +00:00
Kip Macy
8030c630da remove superfluous debug printfs 2008-01-16 02:39:33 +00:00
Nate Lawson
e1f13773ec Remove duplicate cpufreq levels, i.e. ones that are within 25 Mhz of each
other.  The first one survives, the rest are removed.  So far, it appears
only some acpi_perf(4) BIOS tables have these invalid states, but address
this in the core to be sure to handle other potential driver data.

PR:		kern/114722
Tested by:	stefan.lambrev / moneybookers.com
MFC after:	3 days
2008-01-16 01:05:21 +00:00
Kip Macy
c833fdd83f Fix mbuf leak caused by freeing packet zone clusters but not their associated mbufs
- Track packet zone mbufs separately from other mbufs
- free packet zone buffers via m_free rather than trying to manage the refcount
  as with clusters - its refcount and management seems to be "special"
2008-01-16 00:28:30 +00:00
Kip Macy
2fd79ec2de put tx queue size back to 1024 2008-01-16 00:26:04 +00:00
John Baldwin
16670d1bd1 Use '%zd' to print PIO_LEN since it involves a size_t (via sizeof()) to
appease the tinderbox on 32-bit platforms.

Tested on:	amd64, i386
2008-01-15 22:01:26 +00:00
John Baldwin
0678f786c4 Don't cache the new-bus name of a PCI device in the PCI conf structure,
but reread it from the device_t every time the device list is fetched.
Previously the device name in pciconf -l would not be updated when a driver
was unloaded or if a device was detached and attached to a different
driver.

MFC after:	1 week
PR:		kern/104777
Submitted by:	"Iasen Kostoff"  tbyte | otel net
2008-01-15 21:40:46 +00:00
Andrew Gallatin
1e413cf932 Add optional support to mxge for MSI-X interrupts and multiple receive
queues (which we call slices).  The NIC will steer traffic into up to
hw.mxge.max_slices different receive rings based on a configurable
hash type (hw.mxge.rss_hash_type).

Currently the driver defaults to using a single slice, so the default
behavior is unchanged.  Also, transmit from non-zero slices is
disabled currently.
2008-01-15 20:34:49 +00:00
Maxim Sobolev
9e2211fd05 Hide common prints under bootverbose.
Obtained from:	src/sys/dev/rr232x/osm_bsd.c, rev.1.2-1.3
MFC after:	2 weeks
2008-01-15 19:21:08 +00:00
John Baldwin
572f347d9f Fix a few minor issues based on a bug report and reading over the HPET
spec:
- Use read/modify/write cycles to enable and disable the HPET instead of
  writing 0 to reserved bits.
- Shutdown the HPET during suspend as encouraged by the spec.
- Fail to attach to an HPET with a period of zero.

MFC after:	1 week
PR:		kern/119675 [3]
Reported by:	Leo Bicknell | bicknell ufp.org
2008-01-15 18:50:47 +00:00
Maxim Sobolev
dd8c2454a8 Make test00 compilable again. 2008-01-15 18:34:47 +00:00
Andrew Gallatin
93143d572a Fix accidental swap of "const" for "static" in mxge firmware byte arrays
caused by running my import script with the wrong args.
2008-01-15 15:04:40 +00:00
Andrew Gallatin
7e8305464a Update to firmware version 1.4.29 from 1.4.25. Relevant changes include:
- Fix a bug introduced in 1.4.20 where speculative read by the processor in the
   write-only doorbell region would cause a target-abort (as opposed to simply
   returning random data). This could manifest itself as NMI or machine freeze
   depending on how the BIOS/OS/chipset configuration handles target-abort.

- Add support for new revisions of -R cards (with AEL1002/AEL1010 xaui->xfi)

- Increase an internal timing (dispatch engine): fix possible spurious reset
  (seen on very few cards).
2008-01-15 13:29:32 +00:00
Jeff Roberson
a755f21484 - When executing the 'tryself' branch in sched_pickcpu() look at the
lowest priority on the queue for the current cpu vs curthread's
   priority.  In the case that curthread is waking up many threads of a
   lower priority as would happen with a turnstile_broadcast() or wakeup()
   of many threads this prevents them from all ending up on the current cpu.
 - In sched_add() make the relationship between a scheduled ithread and
   the current cpu advisory rather than strict.  Only give the ithread
   affinity for the current cpu if it's actually being scheduled from
   a hardware interrupt.  This prevents it from migrating when it simply
   blocks on a lock.

Sponsored by:	Nokia
2008-01-15 09:03:09 +00:00
Kip Macy
139edb19d9 - Simplify mb_free_ext_fast
- increase asserts for mbuf accounting
- track outstanding mbufs (maps very closely to leaked)
- actually only create one thread per port if !multiq
    Oddly enough this fixes the use after free

- move txq_segs to stack in t3_encap
- add checks that pidx doesn't move pass cidx
- simplify mbuf free logic in collapse mbufs routine
2008-01-15 08:08:09 +00:00
Pyun YongHyeon
1083833205 Protect arg in macro M_ASSERTPKTHDR. 2008-01-15 04:00:12 +00:00
Pyun YongHyeon
738489d1c1 Fix build. 2008-01-15 03:47:24 +00:00
Kip Macy
60f1e27625 - move WR_LEN in to cxgb_adapter.h add PIO_LEN to make intent clearer
- move cxgb_tx_common in to cxgb_multiq.c and rename to cxgb_tx
- move cxgb_tx_common dependencies
- further simplify cxgb_dequeue_packet for the non-multiqueue case
- only launch one service thread per port in the non-multiq case
- remove dead cleaning code from cxgb_sge.c
- simplify PIO case substantially in by returning directly from mbuf collapse
  and just using m_copydata
- remove gratuitous m_gethdr in the rx path
- clarify freeing of mbufs in collapse
2008-01-15 03:27:42 +00:00
Kip Macy
74aba11713 remove superfluous locking from dequeue 2008-01-15 03:21:02 +00:00
Pyun YongHyeon
d65abd6663 Overhaul re(4).
o Increased number of Rx/Tx descriptors to 256 for 8169 GigEs
  because it's hard to push the hardware to the limit with default
  64 descriptors.
  TSO requires large number of Tx descriptors to pass a full sized
  TCP segment(65535 bytes IP packet) to hardware. Previously it
  consumed 32 Tx descriptors, assuming MCLBYTES DMA segment size,
  to send the TCP segment which means re(4) couldn't queue more
  than two full sized IP packets.
  For 8139C+ it still uses 64 Rx/Tx descriptors due to its hardware
  limitations. With this changes there are (very) small waste of
  memory for 8139C+ users but I don't think it would affect 8139C+
  users for most cases.
o Various bus_dma(9) fixes.
   - The hardware supports DAC so allow 64bit DMA operations.
   - Removed BUS_DMA_ALLOC_NOW flag.
   - Increased DMA segment size to 4096 from MCLBYTES because TSO
     consumes too many descriptors with MCLBYTES DMA segment size.
   - Tx/Rx side bus_dmamap_load_mbuf_sg(9) support. With these
     changes the code is more readable than previous one and got a
     (slightly) better performance as it doesn't need to pass/
     decode arguments to/from callback function.
   - Removed unnecessary callback function re_dmamap_desc() and
     nuked rl_dmaload_arg structure which was used in the callback.
   - Additional protection for DMA map load failure. In case of
     failure reuse current map instead of returning a bogus DMA
     map.
  -  Deferred DMA map unloading/sync operation for maximum
     performance until we really need to load new DMA map. If we
     happen to reuse current map(e.g. input error) there is no need
     to sync/unload/load again.
  -  The number of allowable Tx DMA segments for a mbuf chains are
     now 32 instead of magic nseg value. If the number of available
     Tx descriptors are short enough to send highly fragmented mbuf
     chains an optimized re_defrag() is called to collapse mbuf
     chains which is supposed to be much faster than m_defrag(9).
     re_defrag() was borrowed from ath(4).
   - Separated Rx/Tx DMA tag from a common DMA tag such that Rx DMA
     tag correctly uses DMA maps that were created with DMA alignment
     restriction(8bytes alignments). Tx DMA tag does not have such
     alignment limitation.
   - Added additional sanity checks for DMA ring map load failure.
   - Added additional spare Rx DMA map for graceful handling of Rx
     DMA map load failure.
   - Fixed misused bus_dmamap_sync(9) and added missing
     bus_dmamap_sync(9) in re_encap()/re_txeof()/re_rxeof().
o Enabled TSO again as re(4) have reasonable number of Tx
  descriptors.
o Don't touch DMA address of a Tx descriptor in re_txeof(). It's
  not needed.
o Fix incorrect update of if_ierrors counter. For Rx buffer
  shortage it should update if_qdrops as the buffer is reused.
o Added checks for unsupported H/W revisions and return ENXIO for
  these hardwares. This is required to remove resource allocation
  code in re_probe as other drivers do in device probe routine.
o Modified descriptor index manipulation macros as it's now possible
  to have different number of descriptors for Rx/Tx.
o In re_start, to save a lock operation, use IFQ_DRV_IS_EMPTY before
  trying to invoke IFQ_DRV_DEQUEUE. Also don't blindly call re_encap
  since we already know the number of available Tx descriptors in
  advance.
o Removed RL_TX_DESC_THLD which was used to reserve RL_TX_DESC_THLD
  descriptors in Tx path. There is no such a limitation mentioned in
  8139C+/8169/8110/8168/8101/8111 datasheet and it seems to work ok
  without reserving RL_TX_DESC_THLD descriptors.
o Fix a comment for RL_GTXSTART. The register is 8bits register.
o Added comments for 8169/8139C+ hardware restrictions on descriptors.
o Removed forward declaration for "struct rl_softc", it's not needed.
o Added a new structure rl_txdesc for Tx descriptor managements and
  a structure rl_rxdesc for Rx descriptor managements.
o Removed unused member variable rl_intlock in driver softc. There are
  still several unused member variables which are supposed to be used
  to access hardware statistics counters. But it seems that accessing
  hardware counters were not implemented yet.
2008-01-15 01:10:31 +00:00
Peter Wemm
2577760fca Update the KVA_PAGES comments for the effect that PAE has on it. It
becomes a unit size of 2MB instead of 4MB and must be a multiple of 8 to
get a valid KERNBASE.
2008-01-14 22:53:01 +00:00
Peter Wemm
a658a1e0a5 Add a CTASSERT that KERNBASE is valid. This is usually messed up by an
invalid KVA_PAGES, so add a pointer to there.
2008-01-14 22:51:43 +00:00
Alan Cox
dd9d15f294 Make pmap_is_prefaultable() more TLB friendly. Specifically, make it use
the kernel's direct map instead of the pmap's recursive mapping to access
the lowest level in the page table.  The direct map is preferable for two
reasons: (1) The TLB is more likely to hold the required direct mapping
because pmap_enter() has already used the direct map to access a nearby
PTE and (2) loading a direct mapping into the TLB involves walking only 2
or 3 levels of the page table instead of 4.
2008-01-14 21:25:06 +00:00
Kip Macy
8b7399ad30 - Assert that immpkt is not set
- convert %lx to 32-bit safe %jx
2008-01-14 07:55:56 +00:00
Pyun YongHyeon
346de09f2a Implement WOL capability.
- Turn on WOL bits in suspend/shutdown method.
 - WOL is disabled in resume routine as WOL can interfere normal
   Rx operation.
 - Move stge_reset() to stge_init_locked() as resetting hardware
   clears configured Rx information which in turn results in
   non-working Rx module after suspend/shutdown operation.
2008-01-14 07:16:48 +00:00
Joseph Koshy
6180b9de75 Increment major version to mark the ABI change between RELENG_7 and -HEAD. 2008-01-14 06:33:41 +00:00
Kip Macy
efe7dfb26c - Add more extensive sanity checks
- remove initial dequeue from cxgb_start as it was causing an mbuf to be referenced twice
2008-01-14 06:00:41 +00:00