Re: [PATCH 08/10] mpt3sas: set EEDP-escape-flags for SAS35 devices.

2016-10-25 Thread Tomas Henzl
On 20.10.2016 14:20, Suganath Prabu S wrote: > An UNMAP command on a PI formatted device will leave the Logical Block > Application Tag and Logical Block Reference Tag as all F's (for those LBAs > that are unmapped). To avoid IO errors if those LBAs are subsequently read > before they are written w

Re: [PATCH 08/10] mpt3sas: set EEDP-escape-flags for SAS35 devices.

2016-10-24 Thread Hannes Reinecke
On 10/20/2016 02:20 PM, Suganath Prabu S wrote: An UNMAP command on a PI formatted device will leave the Logical Block Application Tag and Logical Block Reference Tag as all F's (for those LBAs that are unmapped). To avoid IO errors if those LBAs are subsequently read before they are written with

[PATCH 08/10] mpt3sas: set EEDP-escape-flags for SAS35 devices.

2016-10-20 Thread Suganath Prabu S
An UNMAP command on a PI formatted device will leave the Logical Block Application Tag and Logical Block Reference Tag as all F's (for those LBAs that are unmapped). To avoid IO errors if those LBAs are subsequently read before they are written with valid tag fields, the MPI SCSI IO requests need t