[dpdk-dev] [PATCH v4 26/62] net/qede/base: code refactoring of SP queues

[Rasesh Mody <rasesh.mody@cavium.com>]

Maintain slowpath event queue and consumer queue within HW function
structure, update corresponding alloc and free APIs accordingly.
Cleanup unused code under CONFIG_ECORE_LL2 ifdef.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>
---
 drivers/net/qede/base/ecore_dev.c |   43 +++++++----------------------
 drivers/net/qede/base/ecore_spq.c |   54 ++++++++++++++++++++-----------------
 drivers/net/qede/base/ecore_spq.h |   35 +++++++++---------------
 3 files changed, 52 insertions(+), 80 deletions(-)

diff --git a/drivers/net/qede/base/ecore_dev.c b/drivers/net/qede/base/ecore_dev.c
index 7fce4fd..1ce7d8e 100644
--- a/drivers/net/qede/base/ecore_dev.c
+++ b/drivers/net/qede/base/ecore_dev.c
@@ -165,12 +165,9 @@ void ecore_resc_free(struct ecore_dev *p_dev)
 		ecore_cxt_mngr_free(p_hwfn);
 		ecore_qm_info_free(p_hwfn);
 		ecore_spq_free(p_hwfn);
-		ecore_eq_free(p_hwfn, p_hwfn->p_eq);
-		ecore_consq_free(p_hwfn, p_hwfn->p_consq);
+		ecore_eq_free(p_hwfn);
+		ecore_consq_free(p_hwfn);
 		ecore_int_free(p_hwfn);
-#ifdef CONFIG_ECORE_LL2
-		ecore_ll2_free(p_hwfn, p_hwfn->p_ll2_info);
-#endif
 		ecore_iov_free(p_hwfn);
 		ecore_dmae_info_free(p_hwfn);
 		ecore_dcbx_info_free(p_hwfn, p_hwfn->p_dcbx_info);
@@ -836,11 +833,6 @@ alloc_err:
 
 enum _ecore_status_t ecore_resc_alloc(struct ecore_dev *p_dev)
 {
-	struct ecore_consq *p_consq;
-	struct ecore_eq *p_eq;
-#ifdef	CONFIG_ECORE_LL2
-	struct ecore_ll2_info *p_ll2_info;
-#endif
 	enum _ecore_status_t rc = ECORE_SUCCESS;
 	int i;
 
@@ -988,24 +980,13 @@ enum _ecore_status_t ecore_resc_alloc(struct ecore_dev *p_dev)
 			goto alloc_no_mem;
 		}
 
-		p_eq = ecore_eq_alloc(p_hwfn, (u16)n_eqes);
-		if (!p_eq)
-			goto alloc_no_mem;
-		p_hwfn->p_eq = p_eq;
+		rc = ecore_eq_alloc(p_hwfn, (u16)n_eqes);
+		if (rc)
+			goto alloc_err;
 
-		p_consq = ecore_consq_alloc(p_hwfn);
-		if (!p_consq)
-			goto alloc_no_mem;
-		p_hwfn->p_consq = p_consq;
-
-#ifdef CONFIG_ECORE_LL2
-		if (p_hwfn->using_ll2) {
-			p_ll2_info = ecore_ll2_alloc(p_hwfn);
-			if (!p_ll2_info)
-				goto alloc_no_mem;
-			p_hwfn->p_ll2_info = p_ll2_info;
-		}
-#endif
+		rc = ecore_consq_alloc(p_hwfn);
+		if (rc)
+			goto alloc_err;
 
 		/* DMA info initialization */
 		rc = ecore_dmae_info_alloc(p_hwfn);
@@ -1053,8 +1034,8 @@ void ecore_resc_setup(struct ecore_dev *p_dev)
 
 		ecore_cxt_mngr_setup(p_hwfn);
 		ecore_spq_setup(p_hwfn);
-		ecore_eq_setup(p_hwfn, p_hwfn->p_eq);
-		ecore_consq_setup(p_hwfn, p_hwfn->p_consq);
+		ecore_eq_setup(p_hwfn);
+		ecore_consq_setup(p_hwfn);
 
 		/* Read shadow of current MFW mailbox */
 		ecore_mcp_read_mb(p_hwfn, p_hwfn->p_main_ptt);
@@ -1065,10 +1046,6 @@ void ecore_resc_setup(struct ecore_dev *p_dev)
 		ecore_int_setup(p_hwfn, p_hwfn->p_main_ptt);
 
 		ecore_iov_setup(p_hwfn, p_hwfn->p_main_ptt);
-#ifdef CONFIG_ECORE_LL2
-		if (p_hwfn->using_ll2)
-			ecore_ll2_setup(p_hwfn, p_hwfn->p_ll2_info);
-#endif
 	}
 }
 
diff --git a/drivers/net/qede/base/ecore_spq.c b/drivers/net/qede/base/ecore_spq.c
index ba26d45..016de74 100644
--- a/drivers/net/qede/base/ecore_spq.c
+++ b/drivers/net/qede/base/ecore_spq.c
@@ -355,7 +355,7 @@ enum _ecore_status_t ecore_eq_completion(struct ecore_hwfn *p_hwfn,
 	return rc;
 }
 
-struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem)
+enum _ecore_status_t ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem)
 {
 	struct ecore_eq *p_eq;
 
@@ -364,7 +364,7 @@ struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem)
 	if (!p_eq) {
 		DP_NOTICE(p_hwfn, true,
 			  "Failed to allocate `struct ecore_eq'\n");
-		return OSAL_NULL;
+		return ECORE_NOMEM;
 	}
 
 	/* Allocate and initialize EQ chain*/
@@ -374,7 +374,7 @@ struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem)
 			      ECORE_CHAIN_CNT_TYPE_U16,
 			      num_elem,
 			      sizeof(union event_ring_element),
-			      &p_eq->chain, OSAL_NULL)) {
+			      &p_eq->chain, OSAL_NULL) != ECORE_SUCCESS) {
 		DP_NOTICE(p_hwfn, true, "Failed to allocate eq chain\n");
 		goto eq_allocate_fail;
 	}
@@ -383,24 +383,28 @@ struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn *p_hwfn, u16 num_elem)
 	ecore_int_register_cb(p_hwfn, ecore_eq_completion,
 			      p_eq, &p_eq->eq_sb_index, &p_eq->p_fw_cons);
 
-	return p_eq;
+	p_hwfn->p_eq = p_eq;
+	return ECORE_SUCCESS;
 
 eq_allocate_fail:
-	ecore_eq_free(p_hwfn, p_eq);
-	return OSAL_NULL;
+	OSAL_FREE(p_hwfn->p_dev, p_eq);
+	return ECORE_NOMEM;
 }
 
-void ecore_eq_setup(struct ecore_hwfn *p_hwfn, struct ecore_eq *p_eq)
+void ecore_eq_setup(struct ecore_hwfn *p_hwfn)
 {
-	ecore_chain_reset(&p_eq->chain);
+	ecore_chain_reset(&p_hwfn->p_eq->chain);
 }
 
-void ecore_eq_free(struct ecore_hwfn *p_hwfn, struct ecore_eq *p_eq)
+void ecore_eq_free(struct ecore_hwfn *p_hwfn)
 {
-	if (!p_eq)
+	if (!p_hwfn->p_eq)
 		return;
-	ecore_chain_free(p_hwfn->p_dev, &p_eq->chain);
-	OSAL_FREE(p_hwfn->p_dev, p_eq);
+
+	ecore_chain_free(p_hwfn->p_dev, &p_hwfn->p_eq->chain);
+
+	OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_eq);
+	p_hwfn->p_eq = OSAL_NULL;
 }
 
 /***************************************************************************
@@ -943,7 +947,7 @@ enum _ecore_status_t ecore_spq_completion(struct ecore_hwfn *p_hwfn,
 	return rc;
 }
 
-struct ecore_consq *ecore_consq_alloc(struct ecore_hwfn *p_hwfn)
+enum _ecore_status_t ecore_consq_alloc(struct ecore_hwfn *p_hwfn)
 {
 	struct ecore_consq *p_consq;
 
@@ -953,7 +957,7 @@ struct ecore_consq *ecore_consq_alloc(struct ecore_hwfn *p_hwfn)
 	if (!p_consq) {
 		DP_NOTICE(p_hwfn, true,
 			  "Failed to allocate `struct ecore_consq'\n");
-		return OSAL_NULL;
+		return ECORE_NOMEM;
 	}
 
 	/* Allocate and initialize EQ chain */
@@ -963,27 +967,29 @@ struct ecore_consq *ecore_consq_alloc(struct ecore_hwfn *p_hwfn)
 			      ECORE_CHAIN_CNT_TYPE_U16,
 			      ECORE_CHAIN_PAGE_SIZE / 0x80,
 			      0x80,
-			      &p_consq->chain, OSAL_NULL)) {
+			      &p_consq->chain, OSAL_NULL) != ECORE_SUCCESS) {
 		DP_NOTICE(p_hwfn, true, "Failed to allocate consq chain");
 		goto consq_allocate_fail;
 	}
 
-	return p_consq;
+	p_hwfn->p_consq = p_consq;
+	return ECORE_SUCCESS;
 
 consq_allocate_fail:
-	ecore_consq_free(p_hwfn, p_consq);
-	return OSAL_NULL;
+	OSAL_FREE(p_hwfn->p_dev, p_consq);
+	return ECORE_NOMEM;
 }
 
-void ecore_consq_setup(struct ecore_hwfn *p_hwfn, struct ecore_consq *p_consq)
+void ecore_consq_setup(struct ecore_hwfn *p_hwfn)
 {
-	ecore_chain_reset(&p_consq->chain);
+	ecore_chain_reset(&p_hwfn->p_consq->chain);
 }
 
-void ecore_consq_free(struct ecore_hwfn *p_hwfn, struct ecore_consq *p_consq)
+void ecore_consq_free(struct ecore_hwfn *p_hwfn)
 {
-	if (!p_consq)
+	if (!p_hwfn->p_consq)
 		return;
-	ecore_chain_free(p_hwfn->p_dev, &p_consq->chain);
-	OSAL_FREE(p_hwfn->p_dev, p_consq);
+
+	ecore_chain_free(p_hwfn->p_dev, &p_hwfn->p_consq->chain);
+	OSAL_FREE(p_hwfn->p_dev, p_hwfn->p_consq);
 }
diff --git a/drivers/net/qede/base/ecore_spq.h b/drivers/net/qede/base/ecore_spq.h
index 717ede3..e2468b7 100644
--- a/drivers/net/qede/base/ecore_spq.h
+++ b/drivers/net/qede/base/ecore_spq.h
@@ -194,28 +194,23 @@ void ecore_spq_return_entry(struct ecore_hwfn		*p_hwfn,
  * @param p_hwfn
  * @param num_elem number of elements in the eq
  *
- * @return struct ecore_eq* - a newly allocated structure; NULL upon error.
+ * @return enum _ecore_status_t
  */
-struct ecore_eq *ecore_eq_alloc(struct ecore_hwfn	*p_hwfn,
-				 u16			num_elem);
+enum _ecore_status_t ecore_eq_alloc(struct ecore_hwfn	*p_hwfn, u16 num_elem);
 
 /**
- * @brief ecore_eq_setup - Reset the SPQ to its start state.
+ * @brief ecore_eq_setup - Reset the EQ to its start state.
  *
  * @param p_hwfn
- * @param p_eq
  */
-void ecore_eq_setup(struct ecore_hwfn *p_hwfn,
-		    struct ecore_eq   *p_eq);
+void ecore_eq_setup(struct ecore_hwfn *p_hwfn);
 
 /**
- * @brief ecore_eq_deallocate - deallocates the given EQ struct.
+ * @brief ecore_eq_free - deallocates the given EQ struct.
  *
  * @param p_hwfn
- * @param p_eq
  */
-void ecore_eq_free(struct ecore_hwfn *p_hwfn,
-		   struct ecore_eq   *p_eq);
+void ecore_eq_free(struct ecore_hwfn *p_hwfn);
 
 /**
  * @brief ecore_eq_prod_update - update the FW with default EQ producer
@@ -261,32 +256,26 @@ enum _ecore_status_t ecore_spq_completion(struct ecore_hwfn	*p_hwfn,
 u32 ecore_spq_get_cid(struct ecore_hwfn *p_hwfn);
 
 /**
- * @brief ecore_consq_alloc - Allocates & initializes an ConsQ
- *        struct
+ * @brief ecore_consq_alloc - Allocates & initializes an ConsQ struct
  *
  * @param p_hwfn
  *
- * @return struct ecore_eq* - a newly allocated structure; NULL upon error.
+ * @return enum _ecore_status_t
  */
-struct ecore_consq *ecore_consq_alloc(struct ecore_hwfn	*p_hwfn);
+enum _ecore_status_t ecore_consq_alloc(struct ecore_hwfn *p_hwfn);
 
 /**
- * @brief ecore_consq_setup - Reset the ConsQ to its start
- *        state.
+ * @brief ecore_consq_setup - Reset the ConsQ to its start state.
  *
  * @param p_hwfn
- * @param p_eq
  */
-void ecore_consq_setup(struct ecore_hwfn *p_hwfn,
-		    struct ecore_consq   *p_consq);
+void ecore_consq_setup(struct ecore_hwfn *p_hwfn);
 
 /**
  * @brief ecore_consq_free - deallocates the given ConsQ struct.
  *
  * @param p_hwfn
- * @param p_eq
  */
-void ecore_consq_free(struct ecore_hwfn *p_hwfn,
-		   struct ecore_consq   *p_consq);
+void ecore_consq_free(struct ecore_hwfn *p_hwfn);
 
 #endif /* __ECORE_SPQ_H__ */
-- 
1.7.10.3