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 with valid tag fields, the MPI SCSI IO requests > need to set the EEDPFlags element EEDP Escape Mode field, Bits [7:6] > appropriately. A value of 2 should be set to disable all PI checks if the > Logical Block Application Tag is 0xFFFF for PI types 1 and 2. A value > of 3 should be set to disable all PI checks if the Logical Block > Application Tag is 0xFFFF and the Logical Block Reference Tag is > 0xFFFFFFFF for PI type 3. > > Signed-off-by: Chaitra P B <chaitra.basappa@xxxxxxxxxxxx> > Signed-off-by: Sathya Prakash <sathya.prakash@xxxxxxxxxxxx> > Signed-off-by: Suganath Prabu S <suganath-prabu.subramani@xxxxxxxxxxxx> Reviewed-by: Tomas Henzl <thenzl@xxxxxxxxxx> Tomas -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
