diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2016-07-26 01:06:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-30 14:39:42 +0200 |
| commit | ff1586a7ea57a4758a3f10ad7c9cdb26edcbd7f3 (patch) | |
| tree | b687e5062e85b54af6bd18c53c563f65507d8075 /drivers/misc/mei/interrupt.c | |
| parent | 3030dc056459439d756d81a920e135893076a348 (diff) | |
mei: enqueue consecutive reads
The FW supports only one pending read per host client, in order to
support issuing of consecutive reads the driver queues read requests
internally and send them to the firmware after pending one has
completed.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/interrupt.c')
| -rw-r--r-- | drivers/misc/mei/interrupt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 36382d782e20..bf745e03f21e 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -209,6 +209,9 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb, int slots; int ret; + if (!list_empty(&cl->rd_pending)) + return 0; + msg_slots = mei_data2slots(sizeof(struct hbm_flow_control)); slots = mei_hbuf_empty_slots(dev); |