msm: ipa3: aggregate transfers completions
In order to reduce MIPS, program GSI in such a way that transfer
completions will be aggregated to a single event. Once IPA driver receives
the single completion event it will process all pending packets up to this
point.
Change-Id: Iec7e7e13048e6c4abc9ce71bc65773ac07502587
CRs-Fixed: 2022853
Acked-by: Ady Abraham <adya@qti.qualcomm.com>
Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>
diff --git a/drivers/platform/msm/ipa/ipa_v3/ipa_i.h b/drivers/platform/msm/ipa/ipa_v3/ipa_i.h
index 1a0d3ad..244e0c0 100644
--- a/drivers/platform/msm/ipa/ipa_v3/ipa_i.h
+++ b/drivers/platform/msm/ipa/ipa_v3/ipa_i.h
@@ -45,6 +45,7 @@
#define IPA3_MAX_NUM_PIPES 31
#define IPA_SYS_DESC_FIFO_SZ 0x800
#define IPA_SYS_TX_DATA_DESC_FIFO_SZ 0x1000
+#define IPA_COMMON_EVENT_RING_SIZE 0x7C00
#define IPA_LAN_RX_HEADER_LENGTH (2)
#define IPA_QMAP_HEADER_LENGTH (4)
#define IPA_DL_CHECKSUM_LENGTH (8)
@@ -591,9 +592,11 @@
*/
struct ipa3_sys_context {
u32 len;
+ u32 len_pending_xfer;
atomic_t curr_polling_state;
struct delayed_work switch_to_intr_work;
enum ipa3_sys_pipe_policy policy;
+ bool use_comm_evt_ring;
int (*pyld_hdlr)(struct sk_buff *skb, struct ipa3_sys_context *sys);
struct sk_buff * (*get_skb)(unsigned int len, gfp_t flags);
void (*free_skb)(struct sk_buff *skb);
@@ -616,6 +619,7 @@
struct list_head head_desc_list;
struct list_head rcycl_list;
spinlock_t spinlock;
+ struct hrtimer db_timer;
struct workqueue_struct *wq;
struct workqueue_struct *repl_wq;
struct ipa3_status_stats *status_stat;
@@ -702,6 +706,7 @@
* @user1: cookie1 for above callback
* @user2: cookie2 for above callback
* @xfer_done: completion object for sync completion
+ * @skip_db_ring: specifies whether GSI doorbell should not be rang
*/
struct ipa3_desc {
enum ipa3_desc_type type;
@@ -715,6 +720,7 @@
void *user1;
int user2;
struct completion xfer_done;
+ bool skip_db_ring;
};
/**
@@ -1133,6 +1139,8 @@
struct workqueue_struct *transport_power_mgmt_wq;
bool tag_process_before_gating;
struct ipa3_transport_pm transport_pm;
+ unsigned long gsi_evt_comm_hdl;
+ u32 gsi_evt_comm_ring_rem;
u32 clnt_hdl_cmd;
u32 clnt_hdl_data_in;
u32 clnt_hdl_data_out;
@@ -1971,4 +1979,5 @@
struct device *ipa3_get_pdev(void);
void ipa3_enable_dcd(void);
void ipa3_disable_prefetch(enum ipa_client_type client);
+int ipa3_alloc_common_event_ring(void);
#endif /* _IPA3_I_H_ */