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path: root/drivers/net/wireless/ath/ath10k/ce.h
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Diffstat (limited to 'drivers/net/wireless/ath/ath10k/ce.h')
-rw-r--r--drivers/net/wireless/ath/ath10k/ce.h126
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
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 04:42:08 +0000