diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2020-08-18 14:51:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-18 15:44:43 +0200 |
| commit | 0cd7c01a60f850987e727b8f08683ace9546eac0 (patch) | |
| tree | 9e8ce820fd189df24abe15334d99a65aa6169c07 /drivers/misc/mei/hbm.c | |
| parent | 2dd1e5ae8c96f1262ce81d0e77225281ae55eb3d (diff) | |
| download | linux-0cd7c01a60f850987e727b8f08683ace9546eac0.tar.bz2 | |
mei: add support for mei extended header.
Add an extend header beyond existing 4 bytes of the mei message header.
The extension is of variable length, starting with meta header
that contains the number of headers and the overall size of
the extended headers excluding meta header itself followed by
TLV list of extended headers. Currently only supported extension is
the vtag. From the HW perspective the extended headers is already
part of the payload.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://lore.kernel.org/r/20200818115147.2567012-5-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/hbm.c')
| -rw-r--r-- | drivers/misc/mei/hbm.c | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index 0513b8a4ea88..a97eb5d47705 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -125,19 +125,15 @@ void mei_hbm_reset(struct mei_device *dev) /** * mei_hbm_hdr - construct hbm header * - * @hdr: hbm header + * @mei_hdr: hbm header * @length: payload length */ -static inline void mei_hbm_hdr(struct mei_msg_hdr *hdr, size_t length) +static inline void mei_hbm_hdr(struct mei_msg_hdr *mei_hdr, size_t length) { - hdr->host_addr = 0; - hdr->me_addr = 0; - hdr->length = length; - hdr->msg_complete = 1; - hdr->dma_ring = 0; - hdr->reserved = 0; - hdr->internal = 0; + memset(mei_hdr, 0, sizeof(*mei_hdr)); + mei_hdr->length = length; + mei_hdr->msg_complete = 1; } /** |