On Fri, 16 Aug 2024 09:44:14 -0500 ira.weiny@xxxxxxxxx wrote: > From: Navneet Singh <navneet.singh@xxxxxxxxx> > > Devices which optionally support Dynamic Capacity (DC) are configured > via mailbox commands. CXL 3.1 requires the host to issue the Get DC > Configuration command in order to properly configure DCDs. Without the > Get DC Configuration command DCD can't be supported. > > Implement the DC mailbox commands as specified in CXL 3.1 section > 8.2.9.9.9 (opcodes 48XXh) to read and store the DCD configuration > information. Disable DCD if DCD is not supported. Leverage the Get DC > Configuration command supported bit to indicate if DCD support. > > Linux has no use for the trailing fields of the Get Dynamic Capacity > Configuration Output Payload (Total number of supported extents, number > of available extents, total number of supported tags, and number of > available tags). Avoid defining those fields to use the more useful > dynamic C array. > > Cc: "Li, Ming" <ming4.li@xxxxxxxxx> > Signed-off-by: Navneet Singh <navneet.singh@xxxxxxxxx> > Co-developed-by: Ira Weiny <ira.weiny@xxxxxxxxx> > Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx> LGTM Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> If you can get rid of the <nil> thing even better.
