[PATCH net-next 2/7] bnge: Extract per-NQ ring allocation and init helpers

[Bhargava Marreddy <bhargava.marreddy@broadcom.com>]

Factor the per-NQ loop body in bnge_hwrm_ring_alloc() and
bnge_init_ring_struct() into standalone bnge_hwrm_nq_ring_alloc() and
bnge_init_nq_ring_struct() helpers.

This is a pure refactor with no functional changes, preparing NQ0 setup
to run independently during probe rather than through the open path loop.

Signed-off-by: Bhargava Marreddy <bhargava.marreddy@broadcom.com>
Reviewed-by: Dharmender Garg <dharmender.garg@broadcom.com>
Reviewed-by: Vikas Gupta <vikas.gupta@broadcom.com>
Reviewed-by: Akhilesh Samineni <akhilesh.samineni@broadcom.com>
---
 .../net/ethernet/broadcom/bnge/bnge_netdev.c  | 56 +++++++++++--------
 .../net/ethernet/broadcom/bnge/bnge_rmem.c    | 25 ++++++---
 .../net/ethernet/broadcom/bnge/bnge_rmem.h    |  4 +-
 3 files changed, 52 insertions(+), 33 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c
index dbadbf76a3a9..6c1cb3aab5a8 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_netdev.c
@@ -1909,6 +1909,37 @@ static int bnge_hwrm_rx_ring_alloc(struct bnge_net *bn,
 	return 0;
 }
 
+static int bnge_hwrm_nq_ring_alloc(struct bnge_net *bn, int index)
+{
+	struct bnge_napi *bnapi = bn->bnapi[index];
+	struct bnge_nq_ring_info *nqr = &bnapi->nq_ring;
+	struct bnge_ring_struct *ring = &nqr->ring_struct;
+	u32 type = HWRM_RING_ALLOC_NQ;
+	struct bnge_dev *bd = bn->bd;
+	u32 map_idx = ring->map_idx;
+	unsigned int vector;
+	int rc;
+
+	vector = bd->irq_tbl[map_idx].vector;
+	disable_irq_nosync(vector);
+	rc = hwrm_ring_alloc_send_msg(bn, ring, type, map_idx);
+	if (rc) {
+		enable_irq(vector);
+		return rc;
+	}
+	bnge_set_db(bn, &nqr->nq_db, type, map_idx, ring->fw_ring_id);
+	bnge_db_nq(bn, &nqr->nq_db, nqr->nq_raw_cons);
+	enable_irq(vector);
+	bn->grp_info[index].nq_fw_ring_id = (u16)ring->fw_ring_id;
+	if (!index) {
+		rc = bnge_hwrm_set_async_event_cr(bd, ring->fw_ring_id);
+		if (rc)
+			netdev_warn(bn->netdev, "Failed to set async event completion ring.\n");
+	}
+
+	return 0;
+}
+
 static int bnge_hwrm_ring_alloc(struct bnge_net *bn)
 {
 	struct bnge_dev *bd = bn->bd;
@@ -1917,30 +1948,9 @@ static int bnge_hwrm_ring_alloc(struct bnge_net *bn)
 
 	agg_rings = !!(bnge_is_agg_reqd(bd));
 	for (i = 0; i < bd->nq_nr_rings; i++) {
-		struct bnge_napi *bnapi = bn->bnapi[i];
-		struct bnge_nq_ring_info *nqr = &bnapi->nq_ring;
-		struct bnge_ring_struct *ring = &nqr->ring_struct;
-		u32 type = HWRM_RING_ALLOC_NQ;
-		u32 map_idx = ring->map_idx;
-		unsigned int vector;
-
-		vector = bd->irq_tbl[map_idx].vector;
-		disable_irq_nosync(vector);
-		rc = hwrm_ring_alloc_send_msg(bn, ring, type, map_idx);
-		if (rc) {
-			enable_irq(vector);
+		rc = bnge_hwrm_nq_ring_alloc(bn, i);
+		if (rc)
 			goto err_out;
-		}
-		bnge_set_db(bn, &nqr->nq_db, type, map_idx, ring->fw_ring_id);
-		bnge_db_nq(bn, &nqr->nq_db, nqr->nq_raw_cons);
-		enable_irq(vector);
-		bn->grp_info[i].nq_fw_ring_id = (u16)ring->fw_ring_id;
-
-		if (!i) {
-			rc = bnge_hwrm_set_async_event_cr(bd, ring->fw_ring_id);
-			if (rc)
-				netdev_warn(bn->netdev, "Failed to set async event completion ring.\n");
-		}
 	}
 
 	for (i = 0; i < bd->tx_nr_rings; i++) {
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_rmem.c b/drivers/net/ethernet/broadcom/bnge/bnge_rmem.c
index b066ee887a09..e0ddb2800c54 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_rmem.c
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_rmem.c
@@ -423,6 +423,21 @@ int bnge_alloc_ctx_mem(struct bnge_dev *bd)
 	return 0;
 }
 
+void bnge_init_nq_ring_struct(struct bnge_net *bn,
+			      struct bnge_nq_ring_info *nqr)
+{
+	struct bnge_ring_mem_info *rmem;
+	struct bnge_ring_struct *ring;
+
+	ring = &nqr->ring_struct;
+	rmem = &ring->ring_mem;
+	rmem->nr_pages = bn->cp_nr_pages;
+	rmem->page_size = HW_CMPD_RING_SIZE;
+	rmem->pg_arr = (void **)nqr->desc_ring;
+	rmem->dma_arr = nqr->desc_mapping;
+	rmem->vmem_size = 0;
+}
+
 void bnge_init_ring_struct(struct bnge_net *bn)
 {
 	struct bnge_dev *bd = bn->bd;
@@ -431,19 +446,11 @@ void bnge_init_ring_struct(struct bnge_net *bn)
 	for (i = 0; i < bd->nq_nr_rings; i++) {
 		struct bnge_napi *bnapi = bn->bnapi[i];
 		struct bnge_ring_mem_info *rmem;
-		struct bnge_nq_ring_info *nqr;
 		struct bnge_rx_ring_info *rxr;
 		struct bnge_tx_ring_info *txr;
 		struct bnge_ring_struct *ring;
 
-		nqr = &bnapi->nq_ring;
-		ring = &nqr->ring_struct;
-		rmem = &ring->ring_mem;
-		rmem->nr_pages = bn->cp_nr_pages;
-		rmem->page_size = HW_CMPD_RING_SIZE;
-		rmem->pg_arr = (void **)nqr->desc_ring;
-		rmem->dma_arr = nqr->desc_mapping;
-		rmem->vmem_size = 0;
+		bnge_init_nq_ring_struct(bn, &bnapi->nq_ring);
 
 		rxr = bnapi->rx_ring;
 		if (!rxr)
diff --git a/drivers/net/ethernet/broadcom/bnge/bnge_rmem.h b/drivers/net/ethernet/broadcom/bnge/bnge_rmem.h
index bb0c79a1ee60..a5a1d346ac93 100644
--- a/drivers/net/ethernet/broadcom/bnge/bnge_rmem.h
+++ b/drivers/net/ethernet/broadcom/bnge/bnge_rmem.h
@@ -7,6 +7,7 @@
 struct bnge_ctx_mem_type;
 struct bnge_dev;
 struct bnge_net;
+struct bnge_nq_ring_info;
 
 #define PTU_PTE_VALID             0x1UL
 #define PTU_PTE_LAST              0x2UL
@@ -198,5 +199,6 @@ void bnge_free_ring(struct bnge_dev *bd, struct bnge_ring_mem_info *rmem);
 int bnge_alloc_ctx_mem(struct bnge_dev *bd);
 void bnge_free_ctx_mem(struct bnge_dev *bd);
 void bnge_init_ring_struct(struct bnge_net *bn);
-
+void bnge_init_nq_ring_struct(struct bnge_net *bn,
+			      struct bnge_nq_ring_info *nqr);
 #endif /* _BNGE_RMEM_H_ */
-- 
2.47.3