1 files changed, 21 insertions, 105 deletions

diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index c17f07c026f4..15d45b5b7615 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -27,7 +27,6 @@
 
 /* Descriptor rings must be aligned to this boundary */
 #define CE_DESC_RING_ALIGN      8
-#define CE_SENDLIST_ITEMS_MAX   12
 #define CE_SEND_FLAG_GATHER     0x00010000
 
 /*
@@ -36,16 +35,9 @@
  * how to use copy engines.
  */
 
-struct ce_state;
+struct ath10k_ce_pipe;
 
 
-/* Copy Engine operational state */
-enum ce_op_state {
-        CE_UNUSED,
-        CE_PAUSED,
-        CE_RUNNING,
-};
-
 #define CE_DESC_FLAGS_GATHER         (1 << 0)
 #define CE_DESC_FLAGS_BYTE_SWAP      (1 << 1)
 #define CE_DESC_FLAGS_META_DATA_MASK 0xFFFC
@@ -57,8 +49,7 @@ struct ce_desc {
         __le16 flags; /* %CE_DESC_FLAGS_ */
 };
 
-/* Copy Engine Ring internal state */
-struct ce_ring_state {
+struct ath10k_ce_ring {
         /* Number of entries in this ring; must be power of 2 */
         unsigned int nentries;
         unsigned int nentries_mask;
@@ -116,49 +107,20 @@ struct ce_ring_state {
         void **per_transfer_context;
 };
 
-/* Copy Engine internal state */
-struct ce_state {
+struct ath10k_ce_pipe {
         struct ath10k *ar;
         unsigned int id;
 
         unsigned int attr_flags;
 
         u32 ctrl_addr;
-        enum ce_op_state state;
-
-        void (*send_cb) (struct ce_state *ce_state,
-                         void *per_transfer_send_context,
-                         u32 buffer,
-                         unsigned int nbytes,
-                         unsigned int transfer_id);
-        void (*recv_cb) (struct ce_state *ce_state,
-                         void *per_transfer_recv_context,
-                         u32 buffer,
-                         unsigned int nbytes,
-                         unsigned int transfer_id,
-                         unsigned int flags);
-
-        unsigned int src_sz_max;
-        struct ce_ring_state *src_ring;
-        struct ce_ring_state *dest_ring;
-};
 
-struct ce_sendlist_item {
-        /* e.g. buffer or desc list */
-        dma_addr_t data;
-        union {
-                /* simple buffer */
-                unsigned int nbytes;
-                /* Rx descriptor list */
-                unsigned int ndesc;
-        } u;
-        /* externally-specified flags; OR-ed with internal flags */
-        u32 flags;
-};
+        void (*send_cb)(struct ath10k_ce_pipe *);
+        void (*recv_cb)(struct ath10k_ce_pipe *);
 
-struct ce_sendlist {
-        unsigned int num_items;
-        struct ce_sendlist_item item[CE_SENDLIST_ITEMS_MAX];
+        unsigned int src_sz_max;
+        struct ath10k_ce_ring *src_ring;
+        struct ath10k_ce_ring *dest_ring;
 };
 
 /* Copy Engine settable attributes */
@@ -182,7 +144,7 @@ struct ce_attr;
  *
  * Implementation note: pushes 1 buffer to Source ring
  */
-int ath10k_ce_send(struct ce_state *ce_state,
+int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
                    void *per_transfer_send_context,
                    u32 buffer,
                    unsigned int nbytes,
@@ -190,36 +152,11 @@ int ath10k_ce_send(struct ce_state *ce_state,
                    unsigned int transfer_id,
                    unsigned int flags);
 
-void ath10k_ce_send_cb_register(struct ce_state *ce_state,
-                                void (*send_cb) (struct ce_state *ce_state,
-                                                 void *transfer_context,
-                                                 u32 buffer,
-                                                 unsigned int nbytes,
-                                                 unsigned int transfer_id),
+void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
+                                void (*send_cb)(struct ath10k_ce_pipe *),
                                 int disable_interrupts);
 
-/* Append a simple buffer (address/length) to a sendlist. */
-void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist,
-                                u32 buffer,
-                                unsigned int nbytes,
-                                /* OR-ed with internal flags */
-                                u32 flags);
-
-/*
- * Queue a "sendlist" of buffers to be sent using gather to a single
- * anonymous destination buffer
- *   ce         - which copy engine to use
- *   sendlist        - list of simple buffers to send using gather
- *   transfer_id     - arbitrary ID; reflected to destination
- * Returns 0 on success; otherwise an error status.
- *
- * Implemenation note: Pushes multiple buffers with Gather to Source ring.
- */
-int ath10k_ce_sendlist_send(struct ce_state *ce_state,
-                            void *per_transfer_send_context,
-                            struct ce_sendlist *sendlist,
-                            /* 14 bits */
-                            unsigned int transfer_id);
+int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe);
 
 /*==================Recv=======================*/
 
@@ -233,17 +170,12 @@ int ath10k_ce_sendlist_send(struct ce_state *ce_state,
  *
  * Implemenation note: Pushes a buffer to Dest ring.
  */
-int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
                                void *per_transfer_recv_context,
                                u32 buffer);
 
-void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
-                                void (*recv_cb) (struct ce_state *ce_state,
-                                                 void *transfer_context,
-                                                 u32 buffer,
-                                                 unsigned int nbytes,
-                                                 unsigned int transfer_id,
-                                                 unsigned int flags));
+void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
+                                void (*recv_cb)(struct ath10k_ce_pipe *));
 
 /* recv flags */
 /* Data is byte-swapped */
@@ -253,7 +185,7 @@ void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
  * Supply data for the next completed unprocessed receive descriptor.
  * Pops buffer from Dest ring.
  */
-int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state,
                                   void **per_transfer_contextp,
                                   u32 *bufferp,
                                   unsigned int *nbytesp,
@@ -263,7 +195,7 @@ int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
  * Supply data for the next completed unprocessed send descriptor.
  * Pops 1 completed send buffer from Source ring.
  */
-int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state,
                            void **per_transfer_contextp,
                            u32 *bufferp,
                            unsigned int *nbytesp,
@@ -272,7 +204,7 @@ int ath10k_ce_completed_send_next(struct ce_state *ce_state,
 /*==================CE Engine Initialization=======================*/
 
 /* Initialize an instance of a CE */
-struct ce_state *ath10k_ce_init(struct ath10k *ar,
+struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
                                 unsigned int ce_id,
                                 const struct ce_attr *attr);
 
@@ -282,7 +214,7 @@ struct ce_state *ath10k_ce_init(struct ath10k *ar,
  * receive buffers.  Target DMA must be stopped before using
  * this API.
  */
-int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+int ath10k_ce_revoke_recv_next(struct ath10k_ce_pipe *ce_state,
                                void **per_transfer_contextp,
                                u32 *bufferp);
 
@@ -291,13 +223,13 @@ int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
  * pending sends.  Target DMA must be stopped before using
  * this API.
  */
-int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+int ath10k_ce_cancel_send_next(struct ath10k_ce_pipe *ce_state,
                                void **per_transfer_contextp,
                                u32 *bufferp,
                                unsigned int *nbytesp,
                                unsigned int *transfer_idp);
 
-void ath10k_ce_deinit(struct ce_state *ce_state);
+void ath10k_ce_deinit(struct ath10k_ce_pipe *ce_state);
 
 /*==================CE Interrupt Handlers====================*/
 void ath10k_ce_per_engine_service_any(struct ath10k *ar);
@@ -322,9 +254,6 @@ struct ce_attr {
         /* CE_ATTR_* values */
         unsigned int flags;
 
-        /* currently not in use */
-        unsigned int priority;
-
         /* #entries in source ring - Must be a power of 2 */
         unsigned int src_nentries;
 
@@ -336,21 +265,8 @@ struct ce_attr {
 
         /* #entries in destination ring - Must be a power of 2 */
         unsigned int dest_nentries;
-
-        /* Future use */
-        void *reserved;
 };
 
-/*
- * When using sendlist_send to transfer multiple buffer fragments, the
- * transfer context of each fragment, except last one, will be filled
- * with CE_SENDLIST_ITEM_CTXT. ce_completed_send will return success for
- * each fragment done with send and the transfer context would be
- * CE_SENDLIST_ITEM_CTXT. Upper layer could use this to identify the
- * status of a send completion.
- */
-#define CE_SENDLIST_ITEM_CTXT   ((void *)0xcecebeef)
-
 #define SR_BA_ADDRESS           0x0000
 #define SR_SIZE_ADDRESS         0x0004
 #define DR_BA_ADDRESS           0x0008