Re: [PATCH 1/2] target: Pass through I/O topology for block backstores

2013-11-11 Thread Martin K. Petersen
> "Andy" == Andy Grover writes: Andy> In addition to block size (already implemented), passing through Andy> alignment offset, logical-to-phys block exponent, I/O granularity Andy> and optimal I/O length will allow initiators to properly handle Andy> layout on LUNs with 4K block sizes. Looks

[PATCH 1/2] target: Pass through I/O topology for block backstores

2013-11-11 Thread Andy Grover
In addition to block size (already implemented), passing through alignment offset, logical-to-phys block exponent, I/O granularity and optimal I/O length will allow initiators to properly handle layout on LUNs with 4K block sizes. Tested with various weird values via scsi_debug module. One thing