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mei: restrict dma ring support to hbm version 2.1

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Only a firmware with version 2.1 and above supports dma ring feature.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2018-07-31 09:35:36 +03:00
committed by Greg Kroah-Hartman
parent 9d89ddfc62
commit c2bd9fc13d
4 changed files with 16 additions and 0 deletions
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6
drivers/misc/mei/hw.h
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@@ -80,6 +80,12 @@
#define HBM_MINOR_VERSION_OS 0
#define HBM_MAJOR_VERSION_OS 2
/*
* MEI version with dma ring support
*/
#define HBM_MINOR_VERSION_DR 1
#define HBM_MAJOR_VERSION_DR 2
/* Host bus message command opcode */
#define MEI_HBM_CMD_OP_MSK 0x7f
/* Host bus message command RESPONSE */