Commit Graph

347 Commits

Author SHA1 Message Date
ru
3b1bf8c2e9 Replaced the misleading uses of a historical artefact M_TRYWAIT with M_WAIT.
Removed dead code that assumed that M_TRYWAIT can return NULL; it's not true
since the advent of MBUMA.

Reviewed by:	arch

There are ongoing disputes as to whether we want to switch to directly using
UMA flags M_WAITOK/M_NOWAIT for mbuf(9) allocation.
2008-03-25 09:39:02 +00:00
julian
51d643caa6 Rename the kthread_xxx (e.g. kthread_create()) calls
to kproc_xxx as they actually make whole processes.
Thos makes way for us to add REAL kthread_create() and friends
that actually make theads. it turns out that most of these
calls actually end up being moved back to the thread version
when it's added. but we need to make this cosmetic change first.

I'd LOVE to do this rename in 7.0  so that we can eventually MFC the
new kthread_xxx() calls.
2007-10-20 23:23:23 +00:00
simokawa
91c4c4d8d5 Protect transaction labels by its own lock to reduce lock contention.
Approved by: re (rwatson)
2007-07-20 03:42:57 +00:00
simokawa
9bdbb066cb Improve acquisition of transaction labels.
- Keep last transaction label for each destination.
- If the next label is not free, just give up.
- This should reduce CPU load for TX on if_fwip under heavy load.

Approved by: re (hrs)
2007-07-15 13:00:29 +00:00
simokawa
4df766d135 Fix a bug of retrieving configuration ROM.
- Handle directories and leaves other than unit directories and text leaves
  correctly.
- Now we can retrieve CROM of iSight correctly.

Approved by: re (hrs)
Tested by: flz
MFC after: 3 days
2007-07-08 11:47:52 +00:00
scottl
ff584e70fa Prepare for future integration between CAM and newbus. xpt_bus_register
now takes a device_t to be the parent of the bus that is being created.
Most SIMs have been updated with a reasonable argument, but a few exceptions
just pass NULL for now.  This argument isn't used yet and the newbus
integration likely won't be ready until after 7.0-RELEASE.
2007-06-17 05:55:54 +00:00
simokawa
798d1eddde - Lock sbp_write_cmd() and ORB_POINTER_ACTIVE flag.
- Remove unnecessary timestamps.
- Return CAM_RESRC_UNAVAIL for ORB shortage.
- Fix a lock problem when doorbell is used.
- Fix a potential bug for unordered execution.
2007-06-16 00:59:41 +00:00
simokawa
b325dde99b - Suppress compiler optimization so that orb[1] must be written first.
We may need an explicit memory barrier for other architectures other than i386/amd64.

MFC after: 3 days
2007-06-14 12:52:13 +00:00
simokawa
651b3690ab Timestamp after sent. 2007-06-08 09:04:30 +00:00
simokawa
11dae06194 Fix a race after a bus reset.
- We are in FWBUSINIT state just after SID interrupt.
- Do not pass normal xfers before bus probe is done.
2007-06-08 07:53:59 +00:00
mjacob
1162db06bf Include now unused var within #if 0 where it come back if the other
#if 0 code comes back- quiets gcc 4.2
2007-06-08 01:34:04 +00:00
simokawa
18d7fd2d43 Add a tunable hw.firewire.phydma_enable.
This is enabled by default.  It should be disabled for
those who are uneasy with peeking/poking from FireWire.

Please note sbp(4) and dcons(4) over FireWire need
this feature.
2007-06-07 13:20:48 +00:00
gallatin
d6b94e9ca2 Fix a typo to make this file compile 2007-06-06 18:33:38 +00:00
simokawa
6052bc5731 MFp4: MPSAFE firewire stack.
- lock its own locks and drop Giant.
- create its own taskqueue thread.
- split interrupt routine
- use interrupt filter as a fast interrupt.
- run watchdog timer in taskqueue so that it should be
   serialized with the bottom half.
- add extra sanity check for transaction labels.
   disable ad-hoc workaround for unknown tlabels.
- add sleep/wakeup synchronization primitives
- don't reset OHCI in fwohci_stop()
2007-06-06 14:31:36 +00:00
simokawa
e75608db54 Make sure fwsid is not NULL.
MFC after: 3 days
2007-05-21 12:17:54 +00:00
simokawa
1e0ff9ca4d MFp4: Simplify the bus probe routin using a kthread.
MFC after: 1 week
2007-05-21 02:18:50 +00:00
simokawa
50e0c5dd7b - Initialize login->id and fix problem for non-zero login id.
- Increase maxopenings for multiple lun/initiators.

MFC after: 3 days
2007-05-11 14:51:13 +00:00
simokawa
042e9b5d41 MFp4: Improve asynchronous packet receive process.
- Wake up DMA engine after adding a new receive buffer.
- Skip buffers which have unknown state after error.
- More rigid error detection.

MFC after: 1 week
2007-04-30 14:06:30 +00:00
simokawa
86a25e2852 MFp4:
- Update state in fw_xferq_dorain() after removed from the send queue.
- Remove unnecessary 'goto err;".

MFC after: 1 week
2007-04-30 13:51:13 +00:00
simokawa
21d4d06eea MFp4: Fix broken userland API for async packets.
- Introduce fw_xferlist_add/remove().
- Introduce fw_read/write_async().
- Remove unused FWACT_CH.

MFC after: 1 week
2007-04-30 13:41:40 +00:00
simokawa
b04643bc9f MFp4: Fix typo in recv spd.
MFC after: 1 week
2007-04-30 12:55:03 +00:00
simokawa
28a59d2af6 MFp4: Add a sysctl knob to disable cycle master mode and add some comments.
MFC after: 1 week
2007-04-30 12:38:50 +00:00
simokawa
48d173f859 MFp4: remove unused fw_asybusy().
MFC after: 1 week
2007-04-30 12:30:21 +00:00
simokawa
37df08c6a9 MFp4: Simplify tlabel handling
- Remove struct tl_label and runtime malloc() for it.
- Include tl_lable list in struct fw_xfer.
- Don't free unallocated tlabel.

MFC after: 1 week
2007-04-30 12:26:29 +00:00
simokawa
3f3de6c767 Initialize configuration ROM before a bus reset.
MFC: after 3 days
2007-04-30 10:50:53 +00:00
simokawa
9c6071b7a1 Configuration ROM length should be unsigned.
MFC: 1 week
2007-04-24 12:15:05 +00:00
pjd
2ee778fb99 s/destory/destroy/ (except for the code in contrib/). 2007-04-16 12:31:35 +00:00
scottl
7605c12c0f Remove Giant from CAM. Drivers (SIMs) now register a mutex that CAM will
use to synchornize and protect all data objects that are used for that
SIM.  Drivers that are not yet MPSAFE register Giant and operate as
usual.  RIght now, no drivers are MPSAFE, though a few will be changed
in the coming week as this work settles down.

The driver API has changed, so all CAM drivers will need to be recompiled.
The userland API has not changed, so tools like camcontrol do not need to
be recompiled.
2007-04-15 08:49:19 +00:00
simokawa
9ccf8975f6 Teardown interrupt only when sc->ih is not NULL.
MFC after: 3 days
2007-03-30 22:25:26 +00:00
simokawa
83871cf425 Free tlabel in fw_xfer_done(). 2007-03-30 15:43:56 +00:00
simokawa
ba1dead5fb - Don't call fw_busreset() in firewire_attach().
This should fix the problem that the first bus reset is
sometimes ignored because of FWBUSRESET status.

MFC after: 3 days
2007-03-30 14:41:24 +00:00
simokawa
3de30923f8 Poll only while interrupt is disabled.
MFC: 3 days after
2007-03-19 03:41:27 +00:00
simokawa
60fa0cb729 Wait SCLK to be stable after LPS enabled.
This should fix NMI problem in fwphy_rddata().

PR: kern/94146 kern/100356
MFC: after 3 days
2007-03-19 03:35:45 +00:00
simokawa
c93bd7d0c4 Replace xfer->act.hand with xfer->hand. 2007-03-16 05:39:33 +00:00
simokawa
a59c4504d1 Remove retry_count. 2007-03-16 05:17:23 +00:00
simokawa
7796b5037d * Remove xfer->retry_req.
It is unnecessary because retry is done by OHCI.
   Further retry should be done by applications.
2007-03-16 05:11:42 +00:00
simokawa
d21a51989f Less verbose debug messages. 2007-03-16 04:26:58 +00:00
simokawa
163503cb40 Detect cycle lost. 2007-03-16 04:25:02 +00:00
simokawa
5b44b334d4 Print warning for large DFLTPHYS. 2007-03-16 02:29:36 +00:00
simokawa
5b347b5d7f Support MAXPHYS up to 512KB
- We need at least two OCBs with indirect pointers allocated in a 4KB page.
- SBP_MAXPHYS can increase to 1MB once we separate management OCB/ORB
  which usually does not need indirect pointers.
- We have to increase SBP_DMA_SIZE for MAXPHYS larger than 1MB.

MFC after: 3 days
2007-03-16 01:23:36 +00:00
simokawa
659d1590e4 Don't mess with PCIM_CMD_SERRESPEN and PCIM_CMD_PERRESPEN.
This will fix 'NMI RAM parity error' while booting on some machines.

PR: kern/95077
MFC after: 3 days
2007-03-15 14:11:46 +00:00
jhb
9081d44243 Use pause() rather than tsleep() on stack variables and function pointers. 2007-02-27 17:23:29 +00:00
piso
6a2ffa86e5 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
marius
95a9b2142a Change the remainder of the drivers for DMA'ing devices enabled in the
sparc64 GENERIC and the sound device drivers known working on sparc64
to use bus_get_dma_tag() to obtain the parent DMA tag so we can get rid
of the sparc64_root_dma_tag kludge eventually. Except for ath(4), sk(4),
stge(4) and ti(4) these changes are runtime tested (unless I booted up
the wrong kernels again...).
2007-01-21 19:32:51 +00:00
jhb
67155fb0b2 Various bpf(4) related fixes to catch places up to the new bpf(4)
semantics.
- Stop testing bpf pointers for NULL.  In some cases use
  bpf_peers_present() and then call the function directly inside the
  conditional block instead of the macro.
- For places where the entire conditional block is the macro, remove the
  test and make the macro unconditional.
- Use BPF_MTAP() in if_pfsync on FreeBSD instead of an expanded version of
  the old semantics.

Reviewed by:	csjp (older version)
2006-12-29 13:59:50 +00:00
cperciva
d8a0af2579 Correct a signedness bug which allowed members of the operator
group to read kernel memory.

Security:	FreeBSD-SA-06:25.kmem
2006-12-06 09:13:51 +00:00
mjacob
19b599de4a 2nd and final commit that moves us to CAM_NEW_TRAN_CODE
as the default.

Reviewed by multitudes.
2006-11-02 00:54:38 +00:00
mjacob
7e1db24f98 The first of 3 major steps to move the CAM layer forward to using
the CAM_NEW_TRAN_CODE that has been in the tree for some years now.

This first step consists solely of adding to or correcting
CAM_NEW_TRAN_CODE pieces in the kernel source tree such
that a both a GENERIC (at least on i386) and a LINT build
with CAM_NEW_TRAN_CODE as an option will compile correctly
and run (at least with some the h/w I have).

After a short settle time, the other pieces (making
CAM_NEW_TRAN_CODE the default and updating libcam
and camcontrol) will be brought in.

This will be an incompatible change in that the size of structures
related to XPT_PATH_INQ and XPT_{GET,SET}_TRAN_SETTINGS change
in both size and content. However, basic system operation and
basic system utilities work well enough with this change.

Reviewed by:	freebsd-scsi and specific stakeholders
2006-10-31 05:53:29 +00:00
imp
3182791d17 Better printf 2006-06-12 04:00:33 +00:00
imp
06a336bb1f Don't type pun accidentally. Instead, be explicit that we're type
punning with an union so that the compiler knows.
2006-02-04 21:37:39 +00:00