Re: Ethernet over PCIe driver for Inter-Processor Communication

2013-09-04 Thread Saravanan S
Hi All, On Fri, Aug 30, 2013 at 11:36 PM, David Hawkins d...@ovro.caltech.eduwrote: Hi S.Saravanan, I successfully mapped the Programmable Interrupt Controller registers in the EP to the PCI space. Thus now I can write the shared message interrupt registers in the EP from the RC over

Re: Ethernet over PCIe driver for Inter-Processor Communication

2013-08-30 Thread Saravanan S
Hi All , On Mon, Aug 26, 2013 at 4:08 AM, David Hawkins d...@ovro.caltech.edu wrote: Hi S.Saravanan, Root complex's would normally interrupt a device via a PCIe write to a register in a BAR on the end-point (or in extended configuration space registers depending on the hardware

Re: Ethernet over PCIe driver for Inter-Processor Communication

2013-08-26 Thread Saravanan S
Hi All, First of all thank you all for taking your time out to reply On Fri, Aug 23, 2013 at 3:59 AM, Ira W. Snyder i...@ovro.caltech.edu wrote: On Thu, Aug 22, 2013 at 02:43:38PM -0700, David Hawkins wrote: Hi S.Saravanan, I have a custom board with four MPC8640 nodes

Ethernet over PCIe driver for Inter-Processor Communication

2013-08-22 Thread Saravanan S
Hi All, I have a custom board with four MPC8640 nodes connected over a transparent PCI express switch . In this configuration one node is configured as host(Root Complex) and others as agents(End Point) .Thus the legacy PCI software works fine . However the mainline kernel lacks any

Re: Standalone SRIO Driver for Linux

2012-07-14 Thread Saravanan S
.** ** ** ** Alex. ** ** *From:* Linuxppc-dev [mailto:linuxppc-dev-bounces+alexandre.bounine= idt@lists.ozlabs.org] *On Behalf Of *Saravanan S *Sent:* Friday, July 13, 2012 2:16 AM *To:* linuxppc-dev@lists.ozlabs.org *Subject:* Standalone SRIO Driver for Linux ** ** Hi

Standalone SRIO Driver for Linux

2012-07-13 Thread Saravanan S
Hi , Iam currently working on the GE make DSP230 board consisting of Quad PowerPC8640 nodes interconnected by SRIO with Linux 2.6.34 . However the only way to access the SRIO is through rionet facility . Our requirement is to use the SRIO interconnect without the Ethernet overheads. This