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| author | M Chetan Kumar <m.chetan.kumar@linux.intel.com> | 2021-11-20 21:51:55 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-11-22 13:23:08 +0000 |
| commit | 00ef32565b9bd03c63ed944bc27878fbbc1c4e0a (patch) | |
| tree | 8005f0dd0a7164b49ddb8d0c4618ca7f739a8abd /drivers/net/wwan/iosm/iosm_ipc_imem_ops.h | |
| parent | c4804670026b93f4ebddda30af89fd737bf93931 (diff) | |
| download | linux-00ef32565b9bd03c63ed944bc27878fbbc1c4e0a.tar.gz linux-00ef32565b9bd03c63ed944bc27878fbbc1c4e0a.tar.bz2 linux-00ef32565b9bd03c63ed944bc27878fbbc1c4e0a.zip | |
net: wwan: iosm: device trace collection using relayfs
This patch brings in support for device trace collection.
It implements relayfs interface for pushing device trace
from kernel space to user space.
Driver gets the debugfs base directory associated to WWAN
Device and creates trace_control and trace debugfs for
device tracing. Both trace_control & trace debugfs are
created under /sys/kernel/debug/wwan/wwan0/.
In order to collect device trace on trace0 interface, user
need to write 1 to trace_ctl interface.
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/wwan/iosm/iosm_ipc_imem_ops.h')
| -rw-r--r-- | drivers/net/wwan/iosm/iosm_ipc_imem_ops.h | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h index f0c88ac5643c..e36ee2782629 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h +++ b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.h @@ -43,12 +43,8 @@ */ struct ipc_mem_channel *ipc_imem_sys_port_open(struct iosm_imem *ipc_imem, int chl_id, int hp_id); - -/** - * ipc_imem_sys_cdev_close - Release a sio link to CP. - * @ipc_cdev: iosm sio instance. - */ -void ipc_imem_sys_cdev_close(struct iosm_cdev *ipc_cdev); +void ipc_imem_sys_port_close(struct iosm_imem *ipc_imem, + struct ipc_mem_channel *channel); /** * ipc_imem_sys_cdev_write - Route the uplink buffer to CP. @@ -145,4 +141,5 @@ int ipc_imem_sys_devlink_read(struct iosm_devlink *ipc_devlink, u8 *data, */ int ipc_imem_sys_devlink_write(struct iosm_devlink *ipc_devlink, unsigned char *buf, int count); +struct iosm_trace *ipc_imem_trace_channel_init(struct iosm_imem *ipc_imem); #endif |