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qcacmn: Add unregister API for direct buf ring

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Add Unregister API to de-register and free resources in direct buf
module. Existing logic of freeing all resources as part of pdev destroy
does not take care of soc_start and soc_stop scenarios. Add this API to
enable modules to de-register as part of soc_stop and register during
start.

CRs-Fixed: 2385313
Change-Id: Ibe6f6bc5f4bd2acc5a9fe71eee09c151853073bc
This commit is contained in:
Edayilliam Jayadev
2019-01-24 19:38:45 +05:30
committed by nshrivas
parent eb26aa78ae
commit 2bee1aa8ad
8 changed files with 144 additions and 10 deletions
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4
target_if/direct_buf_rx/src/target_if_direct_buf_rx_api.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -166,6 +166,8 @@ void target_if_direct_buf_rx_register_tx_ops(struct wlan_lmac_if_tx_ops *tx_ops)
{
tx_ops->dbr_tx_ops.direct_buf_rx_module_register =
target_if_direct_buf_rx_module_register;
tx_ops->dbr_tx_ops.direct_buf_rx_module_unregister =
target_if_direct_buf_rx_module_unregister;
tx_ops->dbr_tx_ops.direct_buf_rx_register_events =
target_if_direct_buf_rx_register_events;
tx_ops->dbr_tx_ops.direct_buf_rx_unregister_events =

53
target_if/direct_buf_rx/src/target_if_direct_buf_rx_main.c
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -728,6 +728,48 @@ QDF_STATUS target_if_direct_buf_rx_module_register(
return status;
}
QDF_STATUS target_if_direct_buf_rx_module_unregister(
struct wlan_objmgr_pdev *pdev, uint8_t mod_id)
{
QDF_STATUS status;
struct direct_buf_rx_pdev_obj *dbr_pdev_obj;
if (!pdev) {
direct_buf_rx_err("pdev context passed is null");
return QDF_STATUS_E_INVAL;
}
if (mod_id >= DBR_MODULE_MAX) {
direct_buf_rx_err("Invalid module id");
return QDF_STATUS_E_INVAL;
}
dbr_pdev_obj = wlan_objmgr_pdev_get_comp_private_obj
(pdev,
WLAN_TARGET_IF_COMP_DIRECT_BUF_RX);
if (!dbr_pdev_obj) {
direct_buf_rx_err("dir buf rx object is null");
return QDF_STATUS_E_FAILURE;
}
direct_buf_rx_info("Dbr pdev obj %pK", dbr_pdev_obj);
if (!dbr_pdev_obj->dbr_mod_param) {
direct_buf_rx_err("dbr_pdev_obj->dbr_mod_param is NULL");
return QDF_STATUS_E_FAILURE;
}
if (mod_id >= dbr_pdev_obj->num_modules) {
direct_buf_rx_err("Module %d not supported in target", mod_id);
return QDF_STATUS_E_FAILURE;
}
status = target_if_deinit_dbr_ring(pdev, dbr_pdev_obj, mod_id);
return status;
}
static void *target_if_dbr_vaddr_lookup(
struct direct_buf_rx_module_param *mod_param,
qdf_dma_addr_t paddr, uint32_t cookie)
@@ -989,7 +1031,8 @@ static QDF_STATUS target_if_dbr_deinit_srng(
dbr_buf_pool = mod_param->dbr_buf_pool;
direct_buf_rx_info("dbr buf pool %pK", dbr_buf_pool);
target_if_dbr_deinit_ring(pdev, mod_param);
qdf_mem_free(dbr_buf_pool);
if (mod_param->dbr_buf_pool)
qdf_mem_free(dbr_buf_pool);
mod_param->dbr_buf_pool = NULL;
return QDF_STATUS_SUCCESS;
@@ -1011,9 +1054,11 @@ QDF_STATUS target_if_deinit_dbr_ring(struct wlan_objmgr_pdev *pdev,
direct_buf_rx_info("mod_param %pK", mod_param);
direct_buf_rx_info("dbr_ring_cap %pK", mod_param->dbr_ring_cap);
target_if_dbr_deinit_srng(pdev, mod_param);
qdf_mem_free(mod_param->dbr_ring_cap);
if (mod_param->dbr_ring_cap)
qdf_mem_free(mod_param->dbr_ring_cap);
mod_param->dbr_ring_cap = NULL;
qdf_mem_free(mod_param->dbr_ring_cfg);
if (mod_param->dbr_ring_cfg)
qdf_mem_free(mod_param->dbr_ring_cfg);
mod_param->dbr_ring_cfg = NULL;
return QDF_STATUS_SUCCESS;

12
target_if/direct_buf_rx/src/target_if_direct_buf_rx_main.h
View File

@@ -1,5 +1,5 @@
/*
* Copyright (c) 2017-2018 The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2019 The Linux Foundation. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -232,4 +232,14 @@ QDF_STATUS target_if_direct_buf_rx_module_register(
int (*dbr_rsp_handler)(struct wlan_objmgr_pdev *pdev,
struct direct_buf_rx_data *dbr_data));
/**
* target_if_direct_buf_rx_module_unregister() - Function to unregister to
* direct buffer rx module
* @pdev: pointer to pdev object
* @mod_id: module id indicating the module using direct buffer rx framework
*
* Return: QDF status of operation
*/
QDF_STATUS target_if_direct_buf_rx_module_unregister(
struct wlan_objmgr_pdev *pdev, uint8_t mod_id);
#endif /* _TARGET_IF_DIRECT_BUF_RX_MAIN_H_ */