diff options
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-mei | 7 | ||||
| -rw-r--r-- | drivers/misc/mei/bus.c | 11 | ||||
| -rw-r--r-- | drivers/misc/mei/client.h | 12 | ||||
| -rw-r--r-- | drivers/misc/mei/debugfs.c | 7 | ||||
| -rw-r--r-- | drivers/misc/mei/hw.h | 15 |
5 files changed, 48 insertions, 4 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-mei b/Documentation/ABI/testing/sysfs-bus-mei index 3d37e2796d5a..6e9a105fe5cb 100644 --- a/Documentation/ABI/testing/sysfs-bus-mei +++ b/Documentation/ABI/testing/sysfs-bus-mei @@ -41,6 +41,13 @@ Contact: Tomas Winkler <tomas.winkler@intel.com> Description: Stores mei client fixed address, if any Format: %d +What: /sys/bus/mei/devices/.../vtag +Date: Nov 2020 +KernelVersion: 5.9 +Contact: Tomas Winkler <tomas.winkler@intel.com> +Description: Stores mei client vtag support status + Format: %d + What: /sys/bus/mei/devices/.../max_len Date: Nov 2019 KernelVersion: 5.5 diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index a6dfc3ce1db2..2e7ac53a4152 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -810,6 +810,16 @@ static ssize_t fixed_show(struct device *dev, struct device_attribute *a, } static DEVICE_ATTR_RO(fixed); +static ssize_t vtag_show(struct device *dev, struct device_attribute *a, + char *buf) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + bool vt = mei_me_cl_vt(cldev->me_cl); + + return sprintf(buf, "%d", vt); +} +static DEVICE_ATTR_RO(vtag); + static ssize_t max_len_show(struct device *dev, struct device_attribute *a, char *buf) { @@ -827,6 +837,7 @@ static struct attribute *mei_cldev_attrs[] = { &dev_attr_modalias.attr, &dev_attr_max_conn.attr, &dev_attr_fixed.attr, + &dev_attr_vtag.attr, &dev_attr_max_len.attr, NULL, }; diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h index 2f8954def591..0d0f36373a4b 100644 --- a/drivers/misc/mei/client.h +++ b/drivers/misc/mei/client.h @@ -94,6 +94,18 @@ static inline u8 mei_me_cl_fixed(const struct mei_me_client *me_cl) } /** + * mei_me_cl_vt - return me client vtag supported status + * + * @me_cl: me client + * + * Return: true if me client supports vt tagging + */ +static inline bool mei_me_cl_vt(const struct mei_me_client *me_cl) +{ + return me_cl->props.vt_supported == 1; +} + +/** * mei_me_cl_max_len - return me client max msg length * * @me_cl: me client diff --git a/drivers/misc/mei/debugfs.c b/drivers/misc/mei/debugfs.c index b98f6f9a4896..3ab1a431d810 100644 --- a/drivers/misc/mei/debugfs.c +++ b/drivers/misc/mei/debugfs.c @@ -27,7 +27,7 @@ static int mei_dbgfs_meclients_show(struct seq_file *m, void *unused) down_read(&dev->me_clients_rwsem); - seq_puts(m, " |id|fix| UUID |con|msg len|sb|refc|\n"); + seq_puts(m, " |id|fix| UUID |con|msg len|sb|refc|vt|\n"); /* if the driver is not enabled the list won't be consistent */ if (dev->dev_state != MEI_DEV_ENABLED) @@ -37,14 +37,15 @@ static int mei_dbgfs_meclients_show(struct seq_file *m, void *unused) if (!mei_me_cl_get(me_cl)) continue; - seq_printf(m, "%2d|%2d|%3d|%pUl|%3d|%7d|%2d|%4d|\n", + seq_printf(m, "%2d|%2d|%3d|%pUl|%3d|%7d|%2d|%4d|%2d|\n", i++, me_cl->client_id, me_cl->props.fixed_address, &me_cl->props.protocol_name, me_cl->props.max_number_of_connections, me_cl->props.max_msg_length, me_cl->props.single_recv_buf, - kref_read(&me_cl->refcnt)); + kref_read(&me_cl->refcnt), + me_cl->props.vt_supported); mei_me_cl_put(me_cl); } diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h index 13e4cb68a0e6..ea0a2e459282 100644 --- a/drivers/misc/mei/hw.h +++ b/drivers/misc/mei/hw.h @@ -314,13 +314,26 @@ struct hbm_host_enum_response { u8 valid_addresses[32]; } __packed; +/** + * struct mei_client_properties - mei client properties + * + * @protocol_name: guid of the client + * @protocol_version: client protocol version + * @max_number_of_connections: number of possible connections. + * @fixed_address: fixed me address (0 if the client is dynamic) + * @single_recv_buf: 1 if all connections share a single receive buffer. + * @vt_supported: the client support vtag + * @reserved: reserved + * @max_msg_length: MTU of the client + */ struct mei_client_properties { uuid_le protocol_name; u8 protocol_version; u8 max_number_of_connections; u8 fixed_address; u8 single_recv_buf:1; - u8 reserved:7; + u8 vt_supported:1; + u8 reserved:6; u32 max_msg_length; } __packed; |