What is the default max_sectors_kb limit in RHEL 7 and 8?

Issue

• We have a RHEL 7 server with couple of SAN devices which showed max_sectors_kb count set to 512 KB:

  # grep . /sys/block/sd*/queue/max_sectors_kb
  /sys/block/sda/queue/max_sectors_kb:512
  /sys/block/sdb/queue/max_sectors_kb:512
  
  # grep . /sys/block/sd*/queue/max_hw_sectors_kb
  /sys/block/sda/queue/max_hw_sectors_kb:32767
  /sys/block/sdb/queue/max_hw_sectors_kb:32767
  

  But after updating it to RHEL 8, the same devices show max_sectors_kb set to 1280 KB:

  # grep . /sys/block/sd*/queue/max_sectors_kb
  /sys/block/sda/queue/max_sectors_kb:1280
  /sys/block/sdb/queue/max_sectors_kb:1280
  
  # grep . /sys/block/sd*/queue/max_hw_sectors_kb
  /sys/block/sda/queue/max_hw_sectors_kb:32767
  /sys/block/sdb/queue/max_hw_sectors_kb:32767
  

• What is the default max_sectors_kb limit in RHEL 7 and 8?
  Is there a kernel change which affected the above value?