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qcacldi-3.0:IPA-uC: Cleanup IPA pending event list when driver unload

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qcacld-2.0 to qcacld-3.0 propagation

IPA pending_event list keeps IPA events arrived while IPA resource
loading/unloading.
This list is freed only when TX/Rx resume/suspend OP code from FW.
This change is to limit the pending event list size and free up the
pending event list when WLAN driver is unloaded.

Change-Id: Id0489a59bd3c2b04d2faba1069df7b2244a2a730
CRs-Fixed: 937765
This commit is contained in:
Yun Park 2015-11-20 11:34:27 -08:00 committed by Satish Singh
parent fa043534bf
commit f19e07d2ef
1 changed files with 50 additions and 14 deletions
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64
core/hdd/src/wlan_hdd_ipa.c
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@ -83,6 +83,8 @@
#define HDD_IPA_UC_STA_ENABLE_MASK BIT(6)
#define HDD_IPA_REAL_TIME_DEBUGGING BIT(8)
#define HDD_IPA_MAX_PENDING_EVENT_COUNT 20
typedef enum {
HDD_IPA_UC_OPCODE_TX_SUSPEND = 0,
HDD_IPA_UC_OPCODE_TX_RESUME = 1,
@ -3484,25 +3486,41 @@ int hdd_ipa_wlan_evt(hdd_adapter_t *adapter, uint8_t sta_id,
if (hdd_ipa_uc_is_enabled(hdd_ipa->hdd_ctx) &&
((hdd_ipa->resource_loading) ||
(hdd_ipa->resource_unloading))) {
struct ipa_uc_pending_event *pending_evet = NULL;
unsigned int pending_event_count;
struct ipa_uc_pending_event *pending_event = NULL;
HDD_IPA_LOG(CDF_TRACE_LEVEL_ERROR,
"%s, RL/RUL inprogress", __func__);
pending_evet = (struct ipa_uc_pending_event *)cdf_mem_malloc(
sizeof(struct ipa_uc_pending_event));
if (!pending_evet) {
HDD_IPA_LOG(CDF_TRACE_LEVEL_ERROR,
"Pending event memory alloc fail");
hdd_err("IPA resource %s inprogress",
hdd_ipa->resource_loading ? "load":"unload");
cdf_mutex_acquire(&hdd_ipa->event_lock);
cdf_list_size(&hdd_ipa->pending_event, &pending_event_count);
if (pending_event_count >= HDD_IPA_MAX_PENDING_EVENT_COUNT) {
hdd_notice("Reached max pending event count");
cdf_list_remove_front(&hdd_ipa->pending_event,
(cdf_list_node_t **)&pending_event);
} else {
pending_event =
(struct ipa_uc_pending_event *)cdf_mem_malloc(
sizeof(struct ipa_uc_pending_event));
}
if (!pending_event) {
hdd_err("Pending event memory alloc fail");
cdf_mutex_release(&hdd_ipa->event_lock);
return -ENOMEM;
}
pending_evet->adapter = adapter;
pending_evet->sta_id = sta_id;
pending_evet->type = type;
cdf_mem_copy(pending_evet->mac_addr,
pending_event->adapter = adapter;
pending_event->sta_id = sta_id;
pending_event->type = type;
cdf_mem_copy(pending_event->mac_addr,
mac_addr,
CDF_MAC_ADDR_SIZE);
cdf_list_insert_back(&hdd_ipa->pending_event,
&pending_evet->node);
&pending_event->node);
cdf_mutex_release(&hdd_ipa->event_lock);
return 0;
}
@ -3911,6 +3929,24 @@ fail_setup_rm:
return CDF_STATUS_E_FAILURE;
}
/**
* hdd_ipa_cleanup_pending_event() - Cleanup IPA pending event list
* @hdd_ipa: pointer to HDD IPA struct
*
* Return: none
*/
void hdd_ipa_cleanup_pending_event(struct hdd_ipa_priv *hdd_ipa)
{
struct ipa_uc_pending_event *pending_event = NULL;
while (cdf_list_remove_front(&hdd_ipa->pending_event,
(cdf_list_node_t **)&pending_event) == CDF_STATUS_SUCCESS) {
cdf_mem_free(pending_event);
}
cdf_list_destroy(&hdd_ipa->pending_event);
}
/**
* hdd_ipa_cleanup - IPA cleanup function
* @hdd_ctx: HDD global context
@ -3991,7 +4027,7 @@ CDF_STATUS hdd_ipa_cleanup(hdd_context_t *hdd_ctx)
ipa_disconnect_wdi_pipe(hdd_ipa->rx_pipe_handle);
cdf_mutex_destroy(&hdd_ipa->event_lock);
cdf_mutex_destroy(&hdd_ipa->ipa_lock);
cdf_list_destroy(&hdd_ipa->pending_event);
hdd_ipa_cleanup_pending_event(hdd_ipa);
#ifdef WLAN_OPEN_SOURCE
for (i = 0; i < HDD_IPA_UC_OPCODE_MAX; i++) {