Date: Tue, 17 Jul 2018 11:52:37 +0530 From: Pratyush Yadav <pratyush@freebsd.org> To: soc-status@freebsd.org Cc: Edward Napierala <trasz@freebsd.org>, Akshay Jaggi <jaggi@freebsd.org> Subject: [Week 9] Import the Xen grant-table bus_dma(9) handlers from OpenBSD Message-ID: <CA%2BX=3T%2B4L6xKddwq7PFwORVQsTu-=vxw1gdG1e41gm-X67eheA@mail.gmail.com>
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Hi, During the last week, I finished updating the blkfront driver to use the new Xen-specific bus_dma(9) implementation. After that, I figured out how I can run it. There were some troubles with getting networking to work in the Xen domU, but I finally figured it out and built the new kernel and ran it. The driver works fine for the most part. But there is an error message printed every second or so which says a read or write failed. I investigated further, and it turns out around 35% of the read or write operations fail. I have not been able to figure out where the problem originates from yet. I will continue debugging until I find out what's going wrong. You can check the code here [0]. I maintain a blog on Blogger where I publish my progress every few days. Check it out if you want more details on what I'm doing [1]. [0] https://github.com/prati0100/freebsd/tree/busdma_xen_clean [1] https://pratyushgsoc.blogspot.com/ -- Regards, Pratyush Yadavhelp
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