Re: HCD sg_tablesize

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On Sun, 11 Apr 2010, Ramya Desai wrote:

> According to her, she saw ~120 entries when I change the max_sectors
> value to 960 or 1024 in the scsi_host_template. I want to say one
> thing here that I am testing the default usb storage driver for 960 or
> 1024 sectors with my UASP device.When I am testing the default usb
> storage driver with 960 max_sectors Sarah saw ~120 scatter-gather list
> entries.

> Please let me know if you need any additional information.

Please run some more tests.  Can you or Sarah verify that xhci-hcd 
receives a request with more than 63 scatterlist elements when the 
sg_tablesize value is 63?  The value of max_sectors doesn't matter.

Alan Stern

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