FPGA, SoC, And CPLD Boards And Kits
FPGA Evaluation and Development Kits
6400 Discussions

Linux device Driver for PCIe w/ regular DMA

Altera_Forum
Honored Contributor II
‎09-04-2012 08:32 PM
1,268 Views

I need to make a Linux device driver to access Altera's Stratix IV card via PCIe interface. I keep find references to some code for a Linux device driver using Scatter/Gather DMA (referenced here: http://www.alteraforum.com/forum/showthread.php?t=4525) but I need to make one for regular streaming DMA. How can I modify the Scatter/Gather driver to ise regular streaming DMA? I keep re-reading the DMA section in LDD3 and it just isn't registering. Any help would be appreciated.

0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎10-26-2012 05:34 PM
480 Views

hey there, 

 

I am pretty much working on a similar problem. I am using the stratix IV with a pcie interface reference design but am yet to sort out the driver completely.  

At this point I am using the sg/chaining dma driver example same as your driver example, but I am trying my luck by commenting out certain portions. But unfortunately am not able to register with the sg-dma on it. 

Keep me posted if you have any breakthrough. 

 

thanks
0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.