On Tue, Oct 23, 2018 at 03:51:19PM +0530, Suganath Prabu wrote: > This is to fix Sync cache and start stop command > failures with DID_NO_CONNECT during driver unload. > > 1) Release drives first from SML, then remove internally > in driver. > 2) And allow sync cache and Start stop commands to firmware, > even when remove_host flag is set This looks like it should be two or maybe even three patches: (1) call sas_remove_host() before releasing volumes and ports, (2) skipping sas_port_delete_phy() and sas_port_delete() when ioc->remove_host (I'm not sure if this is logically part of the sas_remove_host() change), and (3) add _scsih_allow_scmd_to_device() -- this is purely mpt3sas-specific thing independent of the SCSI midlayer. Bjorn
