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
- 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).
- 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
- 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
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.
- 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.
conjuction with 'thread' argument passing which is always curthread.
Remove the unuseful extra-argument and pass explicitly curthread to lower
layer functions, when necessary.
KPI results broken by this change, which should affect several ports, so
version bumping and manpage update will be further committed.
Tested by: kris, pho, Diego Sardina <siarodx at gmail dot com>
zone code. The GPE handler method (i.e. _L00) generates various Notify
events that need to be run to completion before the GPE is re-enabled.
In ACPI-CA, we queue an asynch callback at the same priority as a Notify
so that it will only run after all Notify handlers have completed. The
callback re-enables the GPE afterwards. We also changed the priority of
Notifies to be the same as GPEs, given the possibility that another GPE
could arrive before the Notifies have completed and we don't want it to
get queued ahead of the rest.
The ACPI-CA change was submitted by Alexey Starikovskiy (SUSE) and will
appear in a later release. Special thanks to him for helping track this
bug down.
MFC after: 1 week
Tested by: jhb, Yousif Hassan <yousif / alumni.jmu.edu>
a panic race on module unload. The wakeup() is internal to
kproc_exit/kthread_exit. The correct fix is to fix the msleep() in
detach to sleep on fdc->fdc_thread instead of &fdc->fdc_thread.
Noted and reviewed by: jhb
Pointy hat to: kib
MFC after: 1 week
Wakeup the thread doing the fdc_detach() when the fdc worker thread exits [1].
Write access to the write-protected floppy shall call device_unbusy() to
pair the device_busy() in the fd_access() [2].
PR: 116537 [1], 116539 [2]
MFC after: 1 week
rspq lock. Not doing so was causing us to skip re-enabling the interrupt.
- remove duplicate credits sysctl
- add support for dumping hardware context of the txq
- decrement budget_left when we break out of the process_responses loop
interrupt handlers for child devices by adding a dummy handler that is
always present so that the underlying interrupt thread is always around
avoiding panics from stray interrupts.
MFC after: 3 days
Remove this argument and pass curthread directly to underlying
VOP_LOCK1() VFS method. This modify makes the code cleaner and in
particular remove an annoying dependence helping next lockmgr() cleanup.
KPI results, obviously, changed.
Manpage and FreeBSD_version will be updated through further commits.
As a side note, would be valuable to say that next commits will address
a similar cleanup about VFS methods, in particular vop_lock1 and
vop_unlock.
Tested by: Diego Sardina <siarodx at gmail dot com>,
Andrea Di Pasquale <whyx dot it at gmail dot com>
- return the error from cxgb_tx_common so that when an error is hit we dont
spin forever in the taskq thread
- remove unused rxsd_ref
- simplify header_offset calculation for embedded mbuf headers
- fix memory leak by making sure that mbuf header initialization took place
- disable printf's for stalled queue, don't do offload/ctrl queue restart
when tunnel queue is restarted
- add more diagnostic information about the txq state
- add facility to dump the actual contents of the hardware queue using sysctl
Now, lockmgr() function can only be called passing curthread and the
KASSERT() is upgraded according with this.
In order to support on-the-fly owner switching, the new function
lockmgr_disown() has been introduced and gets used in BUF_KERNPROC().
KPI, so, results changed and FreeBSD version will be bumped soon.
Differently from previous code, we assume idle thread cannot try to
acquire the lockmgr as it cannot sleep, so loose the relative check[1]
in BUF_KERNPROC().
Tested by: kris
[1] kib asked for a KASSERT in the lockmgr_disown() about this
condition, but after thinking at it, as this is a well known general
rule, I found it not really necessary.
This makes it possible to support ftruncate() on non-vnode file types in
the future.
- 'struct fileops' grows a 'fo_truncate' method to handle an ftruncate() on
a given file descriptor.
- ftruncate() moves to kern/sys_generic.c and now just fetches a file
object and invokes fo_truncate().
- The vnode-specific portions of ftruncate() move to vn_truncate() in
vfs_vnops.c which implements fo_truncate() for vnode file types.
- Non-vnode file types return EINVAL in their fo_truncate() method.
Submitted by: rwatson
set, announce BIO_DELETE capability and issue ATA_CFA_ERASE when we get one.
Once we issue more BIO_DELETE, this will improve lifetime, and
possibly write speed of Flash based devices which have usable flash
adaptation layers.
For now, about the only usage is the newfs(1) -E flag.
Approved by: sos
peoples code with irrelevant changes[1]:
Use bus_{read|write_*() instead of bus_space_{read|write}_*() for
purely stylistic reasons.
Due to compiler optimizations and inlining, this is for all practical
purposes without effect in the compiled code.
[1] NB: Approved by: sos
of two compares against 0. The negative effect of cache flushing
is probably more than the gain by not doing the two compares (the
value is almost certainly in register or at worst, cache).
Note that the uses of m_freem() are in error cases and m_freem()
handles NULL anyhow. So fast-path really isn't changed much at all.
correct number of acpi_thermalX devices. Having this wrong caused the
acpi_thermal thread to realloc the array of devices on each loop iteration.
MFC after: 1 week
PR: kern/118497
Submitted by: Pasi Parviainen
- Introduce a finit() which is used to initailize the fields of struct file
in such a way that the ops vector is only valid after the data, type,
and flags are valid.
- Protect f_flag and f_count with atomic operations.
- Remove the global list of all files and associated accounting.
- Rewrite the unp garbage collection such that it no longer requires
the global list of all files and instead uses a list of all unp sockets.
- Mark sockets in the accept queue so we don't incorrectly gc them.
Tested by: kris, pho
possible to end up in the interrupt handler again while processing the
previous RX interrupt in ifp->if_input() because the MD interrupt code
disables the delivery of the respective interrupt until all associated
handlers were called (in the INTR_FILTER case the MI code supposedly
does the same). Toggling the NIC interrupt enable bit in these handlers
still is necessary though as some chips (f.e. the VMware emulated one)
require this to be done in order to keep issuing interrupts.
MFC after: 1 month
implemented with macros. This patch improves code readability. Reasoning
behind vidd_* is a sort of "video discipline".
List of macros is supposed to be complete--all methods of video_switch
ought to have their respective macros from now on.
Functionally, this code should be no-op. My intention is to leave current
behaviour of touched code as is.
No objections: rwatson
Silence on: freebsd-current@
Approved by: cognet
implemented with macros. This patch improves code readability. Reasoning
behind kbdd_* is a "keyboard discipline".
List of macros is supposed to be complete--all methods of keyboard_switch
should have their respective macros from now on.
Functionally, this code should be no-op. My intention is to leave current
behaviour of code as is.
Glanced at by: rwatson
Reviewed by: emax, marcel
Approved by: cognet
- Use the correct offsets when copying out the results of PCIOCGETCONF_OLD.
This happened to not affect the 64-bit architectures because there the
addition of pc_domain to struct pcisel didn't change the overall size of
struct pci_conf. [1]
- Always copy the name and unit information to conf_old so it's also part
of the output once this information is cached in dinfo.
- Use the correct type for flags in struct pci_match_conf_old. This
change is more or less cosmetic though.
Reported and tested by: bde [1]
Reviewed by: imp
MFC after: 3 days
Committed from: 24C3
If a mouse has both a wheel and a Z direction we report both.
XXX Due to tradition the wheel is reported as the Z direction (and the Z
direction as W).
Now Apple's Mighty Mouse is fully supported, except the X11 mouse driver
doesn't know what to do with the new coordinate.
MFC after: 3 months
Approved by: njl (mentor), imp
for that argument. This will allow DDB to detect the broad category of
reason why the debugger has been entered, which it can use for the
purposes of deciding which DDB script to run.
Assign approximate why values to all current consumers of the
kdb_enter() interface.
fget() call, that is sleeping point, and possibly dropping Giant.
The snp_target == NULL implies the snp_tty == NULL. Remove the code
that is put under snp_target == NULL and snp_tty != NULL clause.
In snpclose(), do the snp_detach() before scheduling the snp device
destruction. Otherwise, after the return from snpclose(), the snp
device is already removed from the snp_list, but tty is still in
snooped state. Any attempt to do i/o on such tty cause panic because
ttytosnp() returns NULL.
Tested by: Peter Holm
MFC after: 1 week
as multicast/broadcast frames. Previously re(4) ignored multicast
frames in promiscuous mode. The RTL8169 datasheet was not clear
how it handles multicast frames in promiscuous mode.
PR: kern/118572
MFC after: 3 days
NULL and doesn't point to a NULL pointer before dereferencing it. This
fixes a panic triggered by Xorg 7.3.
Reported and tested by: Bill Green
MFC after: 3 days
a pointer to struct bus_space. The structure contains function
pointers that do the actual bus space access.
The reason for this change is that previously all bus space
accesses were little endian (i.e. had an explicit byte-swap
for multi-byte accesses), because all busses on Macs are little
endian.
The upcoming support for Book E, and in particular the E500
core, requires support for big-endian busses because all
embedded peripherals are in the native byte-order.
With this change, there's no distinction between I/O port
space and memory mapped I/O. PowerPC doesn't have I/O port
space. Busses assign tags based on the byte-order only.
For that purpose, two global structures exist (bs_be_tag and
bs_le_tag), of which the address can be taken to get a valid
tag.
Obtained from: Juniper, Semihalf
is actually a circular log. Deal with it rolling around. Fortunately,
the log area is big and I haven't seen any roll over yet. Update and
get rid of the obsolete comment.
and t3_push_frames).
- Import latest changes to cxgb_main.c and cxgb_sge.c from toestack p4 branch
- make driver local copy of tcp_subr.c and tcp_usrreq.c and override tcp_usrreqs so
TOE can also functions on versions with unmodified TCP
- add cxgb back to the build
cards:
o RocketRAID 172x series
o RocketRAID 174x series
o RocketRAID 2210
o RocketRAID 222x series
o RocketRAID 2240
o RocketRAID 230x series
o RocketRAID 231x series
o RocketRAID 232x series
o RocketRAID 2340
o RocketRAID 2522
Many thanks to Highpoint for their continued support of FreeBSD.
Submitted by: Highpoint
it's multi DAC / playback channels is not that good. Enabling vchans
make the bug more visible since playback allocation will look for
possible free hardware channels first (i.e: the next DAC, the very first
has been consumed by vchan mixer) which in this case has been proven faulty.
Tested by: Dominic Fandrey <LoN_Kamikaze at gmx dot de>
URL: http://lists.freebsd.org/pipermail/freebsd-stable/2007-December/039022.html
The HT1000 DMA engine seems to not always like 64K transfers and sometimes barfs data all over memory leading to instant chrash and burn.
Also fix 48bit adressing issues, apparently newer chips needs 16bit writes and not the usual fifo thing.
HW donated by: Travis Mikalson at TerraNovaNet
that favours true hardware channel, the first instance of recording
request will grab this channel (the first channel is being used as
vchan master). In many cases, it is not really work as intended and give
false impression of broken recording.
PR: kern/118546
MFC after: 3 days
Ethernet Controller. Multicast filtering wasn't tested and needs more
expore. While I'm here change complex if statements with switch
statement which would improve readability.
Reported by: Abdullah Ibn Hamad Al-Marri < wearabnet AT yahoo DOT ca >
Tested by: Abdullah Ibn Hamad Al-Marri < wearabnet AT yahoo DOT ca >
