diff options
| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2015-07-23 20:37:13 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-04 02:25:51 +0200 |
| commit | 18901357e70ae29e3fd1c58712a6847c2ae52eae (patch) | |
| tree | d0aa7e5a5ace95881a146f85c3f41047b5dd79e0 /drivers/misc/mei/interrupt.c | |
| parent | mei: support for dynamic clients (diff) | |
| download | linux-18901357e70ae29e3fd1c58712a6847c2ae52eae.tar.xz linux-18901357e70ae29e3fd1c58712a6847c2ae52eae.zip | |
mei: disconnect on connection request timeout
For the FW with HBM version >= 2.0 we don't need to reset the whole
device in case of a particular client failing to connect, it is enough
to send disconnect a request to bring the device to the stable state.
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 | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 3f3405269c39..89d8e1304077 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -424,6 +424,24 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list) EXPORT_SYMBOL_GPL(mei_irq_write_handler); +/** + * mei_connect_timeout - connect/disconnect timeouts + * + * @cl: host client + */ +static void mei_connect_timeout(struct mei_cl *cl) +{ + struct mei_device *dev = cl->dev; + + if (cl->state == MEI_FILE_CONNECTING) { + if (dev->hbm_f_dot_supported) { + cl->state = MEI_FILE_DISCONNECT_REQUIRED; + wake_up(&cl->wait); + return; + } + } + mei_reset(dev); +} /** * mei_timer - timer function. @@ -464,7 +482,7 @@ void mei_timer(struct work_struct *work) if (cl->timer_count) { if (--cl->timer_count == 0) { dev_err(dev->dev, "timer: connect/disconnect timeout.\n"); - mei_reset(dev); + mei_connect_timeout(cl); goto out; } } |