FPGA Intellectual Property
PCI Express*, Networking and Connectivity, Memory Interfaces, DSP IP, and Video IP
6355 Discussions

PCIe msi

Altera_Forum
Honored Contributor II
‎07-16-2012 11:20 AM
1,501 Views

Can anybody tell me how should configure "MSI enable" bit in "MSI control register" of PCI express IP is it through RTL or SYSTEM SOFTWARE

0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎07-16-2012 01:58 PM
816 Views

This is done by your system software, a.k.a. the driver. If you enable this, the device will (have to) send interrupts not as legacy interrupts but as MSI. If you disable this, the device is only allowed to use legacy interrupts.

0 Kudos
Copy link
Reply

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). 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.