Hight speed data sending from custom IP out of kernel
From: Michal Simek <monstr@monstr.eu>
Date: 2011-04-19 09:49:24
Hi, I would like to create demo for high speed data sending from custom IP through the ethernet. I think the best description is that there are dmaable memory mapped registers or just memory which store data I want to send (for example 200MB). Linux should handle all communication between target(probably server) and host (client) but data in the packets should go from that custom IP and can't go through the kernel because of performance issue. Ethernet core have own DMA which I could use but the question is if there is any option how to convince the kernel that data will go directly from memory mapped registers and the kernel/driver/... just setup dma BD for headers and second for data. Do you have any experience with any solution with passing data completely out of kernel? Thanks, Michal -- Michal Simek, Ing. (M.Eng) w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/ Microblaze U-BOOT custodian