High-level interrupt handler

Why can I decide to support a high-level interrupt or not? Under what condition does the Solaris kernel will map my hw interrupt (INTA from PCI bus) to a high-level interrupt? When should I refuse to support a high-level interrupt? Why? Can I force my hw interrupt to be a high- level interrupt?
Also think about that, most hw interrupts indicate something important such as the case buffers are full. If they are assigned below the scheduler's, it really does not make sense.
Is it possible to block any hw interrupts? Or I'd put it this way can I prioritize hw interrupts in Solaris?
Thanks
tyh

Hi,
On x86 each IRQ has a software priority assigned to it implicitly by the bus driver, although I think you could override it in the driver.conf. Unlike SPARC, the processor doesn't support a PIL so software priorities are implemented by masking all lower-priority IRQs and re-enabling interrupts.
High priority interrupts, above dispatcher level, run in the context of the current thread on the cpu, normal level interrupts are handled by interrupt threads.
The interrupt threads are the highest priority threads on the system, so will preempt any other running threads. In addition mutexes in Solaris use priority inheritance, so the interrupt threads will get to run.
In general, high level interrupts are allocated to devices with small buffers such as serial or floppy, so that their buffers get serviced in the fastest possible time. Others can afford to wait for just a bit.
Your driver should check to see if its device has been allocated a high level interrupt. If this is the case, the high level handler should clear the interrupt and save the data/status (in the driver state structure perhaps) and trigger your soft level interrupt handler (which will run as a thread).
Blocking of interrupts is done for you when you acquire a spin mutex (ie initialised with an iblock cookie). Such a mutex is required to synchronise access to data shared with a high level handler in your driver.
Please take a look at the Intel Driver writers orientation at:
http://soldc.sun.com/developer/support/driver/docs/Solaris_driver_models/index.html
Hope that helps,
Ralph
SUN DTS

Similar Messages

Q on High level interrupt??

we're porting our driver for our PCI board from NT to Solaris. When I load my driver, it shows it was assigned a hi_level interrupt in the attach() routine. If I try to get block cookie or register the ISR for this "hi_level" interrupt, the OS complains my device at IPL 12 conflicts with other device at IRQ 5 IPL 1..
so I have to add
interrupt-priorities=9;
in my driver.conf file to force it to use low level IPL.
I don't think there's hardware problem on our board since they're working fine under NT. My questions are
1. Why OS assign me a high level interrupt by default?
2. Am I allowed to use the hi level interrupt?
3. how to register a hi level interrupt?
Thanks alot.

Yes, solaris (x86 only) contains something like the following
routine to assign IPLs to pci devices:
int pci_devclass_to_ipl(int pci_devclass)
switch ((pci_devclass & 0xff0000) >> 16) {
default:
case PCI_CLASS_NONE: /* class code for pre-2.0 devices */
return 1;
case PCI_CLASS_MASS: /* Mass storage Controller class */
return 5;
case PCI_CLASS_NET: /* Network Controller class */
return 6;
case PCI_CLASS_DISPLAY: /* Display Controller class */
return 9;
case PCI_CLASS_MM: /* Multimedia Controller class */
case PCI_CLASS_MEM: /* Memory Controller class */
case PCI_CLASS_BRIDGE: /* Bridge Controller class */
return 12;
Don't know why sun has deciced that multimedia, memory
and bridge pci controllers must have an IPL 12 (= hi level
interrupt). The solution is indeed to add an
"interrupt-priorities=9;" line to your driver's .conf file to work
around this problem and get rid of the hilevel interrrupt.
My audio driver's (->multimedia) attach routine verifies that
the interrupt-priorities line is in use by making sure the
device is not registered for a hilevel interrupt, like this:
xxx_attach(...)
* Make sure we're not using a high level interrupt handler.
if (ddi_intr_hilevel(dip, 0)) {
cmn_err(CE_NOTE, "Driver does not support high level interrupt.");
cmn_err(CE_NOTE, "You should probably add 'interrupt-priorities=9;' to xxx.conf");
return DDI_FAILURE;

HU03 going to short dump for handling unit which has higher level handling

Hi,
I am ABAPer, i working on issue, HU03 is gong to short dump. i dubug the t code and find out that particular handling unit has higher level handling unit. I checked another handling unit which won't had higher level handling unit, that time it's not giving dump.
Note: in HU03 T CODE, function module V51P_HU_CONTENS is fetching values. when ever handling unit has higher level handling unit, it's not fetching further values.
venkey

Hi,
Goto NACE transaction code , there you select the application area then it will give you the list of output types then select specific output click processing routines then you will see the program name and script used.
Or esle goto SPRO tcode then you can find the functional tab there also you can get the details.
Thanks,
Aditya

Phase out settings at a higher level such as brand or major customer

Have any of you ever setup phase out assignments at a higher level than product and had it work correctly? For example, we want to phase out a brand for a major customer. In other words, a customer is dropping a brand and we don't want statistical forecast generated for that brand customer combination any longer. I am able to setup the fields in phase out lifecycle settings for product, brand, major account but when i enter the brand and major account I am still getting forecast generated. It appears to stop for some products within the brand but not all. Another example is if a customer quits ordering from us I want to setup the major customer to phase out so no forecast is generated.
If you have done this successfully please let me know. Or if you would handle these situations in a different manner other than phase out please let me know. We can do historical adjustments each period but that is a lot of maintenance to do after each period before statistical forecast is generated.
Thanks
Steve

Hi Stephen,
Life cycle planning works only at the detail level (each CVC), the option of aggregate planning is helpful if you want to phase in or out a certain CVC when you are forecasting at the aggregate level.
One option is that you should have all products in the "profile assignment for life cycle " section which falls under that brand and customer. you can maintain a file and then automate the upload process in to the "assignment"
or
you can try to use the copy functionality in the realignment (/SAPAPO/RLGCOPY) , where you maintain copy factor as NIL and when the stat fcst is generated, you can use this as the next step to zero out -but you would need to maintain them manually.
or
easiest and safest wayy would be create a selection for those combination and do not include them in the planning job for stat fcst.
or
you can build a customised program to access the PA, PB, Data view and input the selection to zero out the stat fcst KF for that particular selection after the stat fcst run. here you would need to check if the diaggregated values are good enough.
hope it helps.

Solaris 8 (INTEL) - Interrupt handler

We are developing a device driver for a PCI card. The interrupt level assigned is 10 and the priority level is 6.
In the interrupt handler, we first check whether our device has generated the interrupt and if not return with DDI_INTR_UNCLAIMED otherwise we proceed to clear the interrupt status and do the appropriate action and return DDI_INTR_CLAIMED.
we have observed that while returning from the Interrupt handler, the control is going into a function "LOOP2", and our interrupt handler is invoked again from "LOOP2" and this goes into a loop. ( We use kadb to debug ).
Kindly clarify.

Hi!
I also had the same exact problem during the install. The only way that I could procede was to tell it that I didn't want to install networking. Now when I boot, it tries to load the elx0 driver (for my 3Com 3c509b) and brings the following message, "SIOCSLIFFFLAGS cannot assigm requested address." I have checked the Irq/IO setting in the hardware configuration agent and everything seems to be correct. To top it all off, once I logon if I enter "ifconfig elx0 192.168.1.2 up" then everything works fine. I tried to forceload the elx0 module in /etc/system to see if the module just wasn't loaded early enough but this did not help. Any ideas of what else I should check?
TIA

High-Level JTS/TopLink design question

I've gone through the "using JTS with TopLink" docs, and it mostly makes sense. However, I still don't understand how TopLink "knows" when I call acquireUnitOfWork() whether or not I'm participating in a distributed 2PC transaction.
Said another way:
Let's say I've got an application based on TopLink (registering appropriate JTS stuff) that exposes an API that can be accessed remotely (RMI, SOAP, whatever).
And, I've got another, separate application using a different persistence-layer technology (also supporting JTS) that also has an API.
Now, I create a business method that uses the APIs from both of these applications, and I want them to participate in a single, distributed transaction.
At a high level (source code is unnecessary), how does that work?
Would the API need to support an ability to specifiy a TransactionContext or is this all handled behind the scenes by the 2 systems registering with the Transaction Service?
If this is all handled through registration, how do these 2 systems know that these specific calls are all part of the same XA transaction?

Nate,
TopLink particiaptes in JTA/JTS transactions but dows not control them. When you configure TopLink to use the JTA/JTS services of the host application server you are deferring TX control to the J2EE container. TopLink will in this case register each acquired UnitOfWork in the current active TX from the container. The container will also ensure that the JDBC connection provided to TopLink is also bound by the active TX.
In order to get 2PC you must register multiple resources into the same JTA TX. The TX processing during commit will then make the appropriate call backs to the underlying data source as well as the necessary call backs to listeners suchs as TopLink to have its SQL issued against the database.
In short: The J2EE container manages the 2PC TX and TopLink is just a participant.
Doug Clarke

Returning the macbook for a higher level macbook?!?!??!

Hi all,
I just got my macbook 13 aluminum (2.0 GHz) on 14th April 2009 which was supposed to be delivered to me on 7th April, but because my office was closed so I got my macbook on 14th Arpil 2009. I would like to ask if I can return the current one and get a higher level one which is macbook 13 aluminum (2.4 GHz), as I found that the backlight keyboard is great and I want my macbook with faster performance. In fact, I returned my macbook to Apple before because there was a scratch on the keyboard, and Apple gave me a new macbook 13 aluminum which I am currently using now. So because I got my macbook on 14th instead of 7th because of the delivery problem, base on the 15 days policy, should the date starts on 7th or 14th? And am I suppose to return it and get a higher level one, i am willing to pay more for that.
Thanks!

You'll need to contact Apple on that. There are a few ways they can handle it. First of all, they usually consider your original purchase date for returns. If you have had yours replaced, the replacement date is not usually considered the original purchase date... so you're likely past your 14 day return period. If they make an exception, as you know, you typically have 14 days to make a return... that return period should commence on the date you accept delivery of the product. Provided you have documentation to show when the product was delivered, they may commence the 14 day period from that time. There is also generally a 10% restocking fee for returned products. The only way to know for sure is to contact Apple. This is just a user-to-user forum and Apple will not respond directly to comments posted here.

HDMI Audio not working on Q190 (along with all higher level Audio Formats)

Help, I have been given the run around via support, I cannot get the HDMI audio to work with my Pioneer Surround Sound, only the Intel display audio shows in control panel (Win 8 X64) and the RealteK S/P Dif port and it is not capable of supporting 7.1 sound or bitstreaming or DTS, Dolby HD, Etc. Tec support appears not capable of fixing the issue and wanted to send me to software support and pay. I have only had the machine for 4 days and it has never supported higher level sound.
Every other device I have (had or currently) connected to the receiver works just fine. I have to figure this out or return the machine, the audio is the most important aspect for me. Besides when you advertise 7.1 support the machine you sell should be able to do it.

Hey guys,
I have had this Q190 with the Celeron CPU since last week and I am using XBMC Frodo and the HDMI is connected to my AVR Onkyo TX-NR809 and from the Onkyo to the TV. And the sound is 7.1 with PLIIZ. It works fine. I think it may be some driver problem because Realtek Audio which is in the Q190 works fine with the Win8 preinstalled. Realtek is kind of bad with driver because I lost my wifi after upgrading to Win 8.1. After a few days with no wifi, I found out that the driver was bad, yes it was a Realtek wifi driver but posted by Lenovo for W 8.1.
I have another friend who also just bought the Q190 and he reported no audio problem so I think it is just a matter of trouble shooting the drive and configuration. I do love the form factor of the Q190.

Running a Sub-VI and monitoring data that is generated on a higher level VI

Hi All,
This question must been there before, but I cannot find a suitable answer here on the forums....
I have a 'top-level' VI that does a lot of things. I also have a sub VI that runs a frequency sweep on a piece of equipment. This is done with a for loop.
Problem:
I want to monitor/access the data that is generated in the for loop (See attached, the 3 wires within the green circle I want to monitor).
2 Questions:
How can I access the data on the wires (within the loop) from a higher level VI?
How can I then run this VI in a higher level VI while the higher level VI is continuing and not waiting for the sub-VI to complete?
I tried using a Que but I cannot seem to get that working.
Any suggestions?
Regards,
Attachments:
LV problem.PNG ‏44 KB

The queue is a good way to move data from a running subVI to another VI. Your problem is that if the subVI is inside a loop in the main VI, that loop in the main VI cannot iterate until the subVI completes. The solution: have the sub VI running in parallel - not inside - the loop.
Look at the Producer/Consumer Design Patterns (at File >> New... >> VI >> From Template >> Frameworks >> Design Patterns >> Producer/Consumer. This may be more than you need at the moment but will show how the parallel code process works.
Lynn

Basic XML Publisher Question: How to access tags in the higher levels?

Hi All,
We have a basic question in XML Publisher.
We have a xml hierarchy like below:
<CD_CATALOG>
<CATALOG>
<CAT_NAME> CATALOG 1</CAT_NAME>
<CD>
<TITLE>TITLE1 </TITLE>
<ARTIST>ARTIST1 </ARTIST>
</CD>
<CD>
<TITLE> TITLE2</TITLE>
<ARTIST>ARTIST2 </ARTIST>
</CD>
</CATALOG>
<CATALOG>
<CAT_NAME> CATALOG 2</CAT_NAME>
<CD>
<TITLE>TITLE3 </TITLE>
<ARTIST>ARTIST3 </ARTIST>
</CD>
<CD>
<TITLE> TITLE4</TITLE>
<ARTIST>ARTIST4 </ARTIST>
</CD>
</CATALOG>
</CD_CATALOG>
We need to create a report like below:
CATALOG_NAME     CD_TITLE     CD_ARTISTCATALOG 1     TITLE1     ARTIST1
CATALOG 1     TITLE2     ARTIST2
CATALOG 2     TITLE3     ARTIST3
CATALOG 2     TITLE4     ARTIST4
So we have to loop at the level of <CD> using for-each CD. But when we are inside this loop, we cannot access the value of CAT_NAME which is at a higher level.
How can we solve this?
Right now, we are using the work-around of set_variable and get_Variable. We are setting the value of CAT_NAME inside an outer loop, and using it inside the inner loop using get_variable.
Is this the proper way to do this or are there better ways to do this? We are running into troubles when the data is inside tables.

you can use
<?../CAT_NAME?>copy past to your template
<?for-each:CD?> <?../CAT_NAME?> <?TITLE?> <?ARTIST?> <?end for-each?>

Where can I find various high level examples of workflows being used

I am about to start a project with TCS 3.5 and have been participating in the Adobe webinars to help learn components and specific techniques but what I am lacking is an understanding of various workflows I can model my project after or take bits from various sources. Why start with Framemaker in this workflow versus RoboHelp or even Word? Questions like this I think come from experience with the process and I am thinking that what I am getting myself into is a chessgame with all these pieces and don't want to paint myself into a corner by traveling down one route. I have seen this graphic:
And this one:
And this one:
But they are too generic and do not contain enough information to really understand the descision making process one must go through on various projects.
Can we have a series of webinars made, all with the underlining theme of defining a working process or workflow, by having guests describe how they have or are using this suite in real life on their own projects? One that might include a graphic showing the routes taken through the suite with reasons why?
My project hopes to make a single source internal site that will tie together various 3D portable industrial coordinate metrology systems (hardware and software). It would be used as a dispersal site for help, communications between users and SME, OEM information, QA requirements, established processes, scripting snipet downloads, statistics, and training (including SOJT). Portable industrial metrology has 8 different softwares that are used and right now about 8 different instruments. These include laser trackers and radars, articulated arms, scanners, structered white and blue light to name a few. The softwares include Spatial Analyzer, Veriserf, CompIT, eMscon, AXYZ to a few there as well. I want to be able to participate and add content to an internal Sharpoint site, push content to users for stand-alone workstations, ePub, capture knowledge leaving the company through attrition, develop easy graphic rich job aid sheets, and aid in evaluations of emergent software and hardware. I would also like to leave the option open to use the finished product as a rosetta stone like translator between the software packages; doing this is the equivelent of doing this in these other software pacages for example.

PDF is definately a format I want to include, to collaborate with other divisions and SME for one reason, but also for the ease in including 3D interactive target models with in it and portability. I plan on being able to provide individual PDFs that are very specific in their topics and to also use them to disperse user guides, cheat sheets or job aids... something the user may want to laminate on their own and keep with them for reference, printed out. Discussion in these sheets would be drasticly reduced to only the elements, relying heavely on bullet points or steps, usfull graphs, charts and tables... and of course illustrative images. I am thinking that these should be downloadable buttons to print on each topic section, not in a general apendix or such. They would hopefully be limited to one page, double sided 8x10.
The cheet sheet would have a simplistic flow chart of how or where this specific topic fits in the bigger picture,
The basic steps,
Illustrations, equipment, setup
Software settings for various situations in a table or chart,
Typical result graph to judge with,
Applicable QA, FAA regulation settings or concerns,
Troubleshooting table,
Topic SME contact info
On the back, a screen shot infographic of software process
The trouble here is that I have read that FM has a problem sometimes in succesfully transfering highly structured or formatted material to RoboHelp. Does this then mean that I would take it from FM straight to PDF?
Our OEM material is very high level stuff... basicly for engineers and not shop floor users... but that is not to say they don't have some good material that could be useful. Our internal content is spread out across many different divisions and continents, with various ways of saying the same thing. This leads QA to interpret the information differently depending where the systems are put to work. We also have FAA requirements that need to be addressed and reminded to the user.
Our company is starting to also see an exodus of the most knowledagble of the users through retirement. Capturing the knowledge and soft skill packages they have developed working here for 20-30 years is something I am really struggling with. I have only come up with two ideas so far:
Internal User Web based Forum
Interviews (some SMEs do not want to make the effort in transfering knowledge by participating in anything if it requires an effort they don't see of benefit to themseleves), to get video, audio or transcription records

Assign a Position in CRM to an Organization Unit at a higher level.

Hi,
While configuring the Organizational Management in CRM 5.1, I have copied the sales areas created in ECC to CRM.
The resulting structure is a freely definable Org Unit at the top level called Sales Area (as is was created in ECC) and under that all the Sales Organizations are existing.
I need to create positions for the Sales Organizations and assign employees to these positions created.
As per our client requirement, I need to create the positions at the higher level (probably the Org unit level) and assign the employees to these positions created.
The reason for doing this is that the same employees work across different Sales Orgs.
Is it possible to create the positions at the highest level so that they can be inherited by the Sales Orgs defined below or do i need to create the positions and the employees separately for each Sales Org.
I would appreciate if you could answer at the earliest. I need to complete the configuration at the earliest.
warm regards,
Rohan Bhate

Hello,
Try this SAP CRM: Webclient UI - Framework for this kind of question.
Regards,
Fred

Table_comparison - how to compare data at a high level

Hi,
I have to do data validation at a high level between two tables that I am loading.
I am trying to use table_comparion transform but the problem is that my target table is at a much lower level than at which I want to compare data. So it has many more columns (both key and data fields) than what I want to compare.
Does the output of query transform ( which I am using as input into table_comparion) be in the exact same format as comparion table? If not, then can somebody suggest me something else.
Or how can I compare output of two query transforms ?
Thanks,
Saurabh Bansal

Dear Saurabh,
Not sure if you have already got the solution to this. If yes please close the thread.
If not, i would suggest you can use the validation rule to compare the two tables and then based on the PASS or FAIL result can check what needs to be done on the output.
Do post back if you have got the solution or you need any furthur help or else close the question.
regards,
Den

Recording my voice at a higher level

Hi All,
I am recording my voice for a podcast on garageband. I am speaking directly into my mic, which is attached to my computer. How can I record my voice at a higher level. The output is not loud enough and the "track line" is almost flat. How do I change it so I can record at a higher level!
Thanks!

Roger Wilmut1 wrote:
You will need a mixer or a microphone preamplifier. The audio input on Macs is line level - for example the 'tape' output from a hifi - and is insufficiently sensitive for a microphone.
Hi, Roger,
I was looking at the Behringer Podcast Studio http://www.bhphotovideo.com/c/product/481377-REG/Behringer_PODCASTUDIO_FIREWIRE_ PODCASTUDIO_FIREWIRE_Bundle.html#features
and was wondering if this would work for a first-time podcast? Is it better to pick the items up piecemeal? I was thinking of the Behringer 1202 (Xenyx or UB) as it has 2 more (total of 4) XLR inputs and it's going for about $75. However, the Firewire audio interface with the studio package alone is going for *$77*. It seems that the combo would be more economical, but I don't want to sacrfice quality too much.
Is a Griffin iMic USB audio interface (or a Behringer UCA202 - Low Latency 2 Input / 2 Output USB/Audio Interface with Digital Output) just as good at around $30?
I already have a several mics, some XLR, some 1/4" jacks -- condenser & dynamic.
Eventually, I'd like to record a podcast with around 3-5 people all doing a round-table type discussion.
Thanks for any input, Deborah
PS like the Behringer mixer because of the CD/tape input, also, so that I can digitize old cassette tapes.

Item already defined at a high level in the product tree

Hi experts,
when I add a BOM into the system, says A is consisted of B and C, I click the button to add this BOM, but system tell me an error "Item already defined at a high level in the product tree. Row no. 2".
Row no 2 is item C, I check all my BOM, C is not contained in any BOM, and B is in another BOM but that BOM didn't contain C or A.
A is in a BOM, but in that BOM, there is no C. It's wreid why C already defined at a high level in the product tree. Thanks...

Hi
Please wite following the querry and check
SELECT T0.[Code], T1.[Code] FROM OITT T0 INNER JOIN ITT1 T1 ON T0.Code = T1.Father WHERE T0.[Code] =[%0]
Ashish Gupte

High-level interrupt handler

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