On 7.12.2016 00:00, Sasikumar Chandrasekaran 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. > > This patch is depending on patch 2 > > Signed-off-by: Sasikumar Chandrasekaran <sasikumar...@broadcom.com>
Reviewed-by: Tomas Henzl <the...@redhat.com> Tomas
