[PATCH 2/8] net/gve: rename doorbell BAR variable to be more generic

[Joshua Washington]

From: Mark Blasko <blasko at google.com>

Rename db_bar2 to db_bar in struct gve_priv and update queue doorbell
references across the driver. The doorbells will be in BAR 0 in GVE
Mailbox mode.

Signed-off-by: Mark Blasko <blasko at google.com>
Signed-off-by: Joshua Washington <joshwash at google.com>
---
 drivers/net/gve/gve_ethdev.c | 2 +-
 drivers/net/gve/gve_ethdev.h | 2 +-
 drivers/net/gve/gve_rx.c     | 4 ++--
 drivers/net/gve/gve_rx_dqo.c | 4 ++--
 drivers/net/gve/gve_tx.c     | 4 ++--
 drivers/net/gve/gve_tx_dqo.c | 4 ++--
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/gve/gve_ethdev.c b/drivers/net/gve/gve_ethdev.c
index 6704cc40b3..9cfdd03b9d 100644
--- a/drivers/net/gve/gve_ethdev.c
+++ b/drivers/net/gve/gve_ethdev.c
@@ -1717,7 +1717,7 @@ gve_dev_init(struct rte_eth_dev *eth_dev)
 	gve_write_version(&reg_bar->driver_version);
 
 	priv->reg_bar0 = reg_bar;
-	priv->db_bar2 = db_bar;
+	priv->db_bar = db_bar;
 	priv->pci_dev = pci_dev;
 	priv->state_flags = 0x0;
 
diff --git a/drivers/net/gve/gve_ethdev.h b/drivers/net/gve/gve_ethdev.h
index f57e81dbc9..ef54b75c32 100644
--- a/drivers/net/gve/gve_ethdev.h
+++ b/drivers/net/gve/gve_ethdev.h
@@ -353,7 +353,7 @@ struct gve_priv {
 	uint32_t num_ntfy_blks; /* spilt between TX and RX so must be even */
 
 	struct gve_registers __iomem *reg_bar0; /* see gve_register.h */
-	rte_be32_t __iomem *db_bar2; /* "array" of doorbells */
+	rte_be32_t __iomem *db_bar; /* "array" of doorbells */
 	struct rte_pci_device *pci_dev;
 
 	/* Admin queue - see gve_adminq.h*/
diff --git a/drivers/net/gve/gve_rx.c b/drivers/net/gve/gve_rx.c
index 2f542c7a66..ac2d174c67 100644
--- a/drivers/net/gve/gve_rx.c
+++ b/drivers/net/gve/gve_rx.c
@@ -349,7 +349,7 @@ gve_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_id,
 	rxq->is_gqi_qpl = hw->queue_format == GVE_GQI_QPL_FORMAT;
 	rxq->mpool = pool;
 	rxq->hw = hw;
-	rxq->ntfy_addr = &hw->db_bar2[rte_be_to_cpu_32(hw->irq_dbs[rxq->ntfy_id].id)];
+	rxq->ntfy_addr = &hw->db_bar[rte_be_to_cpu_32(hw->irq_dbs[rxq->ntfy_id].id)];
 
 	mbuf_len =
 		rte_pktmbuf_data_room_size(rxq->mpool) - RTE_PKTMBUF_HEADROOM;
@@ -483,7 +483,7 @@ gve_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 
 	rxq = dev->data->rx_queues[rx_queue_id];
 
-	rxq->qrx_tail = &hw->db_bar2[rte_be_to_cpu_32(rxq->qres->db_index)];
+	rxq->qrx_tail = &hw->db_bar[rte_be_to_cpu_32(rxq->qres->db_index)];
 
 	rte_write32(rte_cpu_to_be_32(GVE_IRQ_MASK), rxq->ntfy_addr);
 
diff --git a/drivers/net/gve/gve_rx_dqo.c b/drivers/net/gve/gve_rx_dqo.c
index 81d7cacaf6..1fbe875954 100644
--- a/drivers/net/gve/gve_rx_dqo.c
+++ b/drivers/net/gve/gve_rx_dqo.c
@@ -370,7 +370,7 @@ gve_rx_queue_setup_dqo(struct rte_eth_dev *dev, uint16_t queue_id,
 
 	rxq->mpool = pool;
 	rxq->hw = hw;
-	rxq->ntfy_addr = &hw->db_bar2[rte_be_to_cpu_32(hw->irq_dbs[rxq->ntfy_id].id)];
+	rxq->ntfy_addr = &hw->db_bar[rte_be_to_cpu_32(hw->irq_dbs[rxq->ntfy_id].id)];
 
 	mbuf_len =
 		rte_pktmbuf_data_room_size(rxq->mpool) - RTE_PKTMBUF_HEADROOM;
@@ -519,7 +519,7 @@ gve_rx_queue_start_dqo(struct rte_eth_dev *dev, uint16_t rx_queue_id)
 
 	rxq = dev->data->rx_queues[rx_queue_id];
 
-	rxq->qrx_tail = &hw->db_bar2[rte_be_to_cpu_32(rxq->qres->db_index)];
+	rxq->qrx_tail = &hw->db_bar[rte_be_to_cpu_32(rxq->qres->db_index)];
 
 	rte_write32(rte_cpu_to_le_32(GVE_NO_INT_MODE_DQO |
 				     GVE_ITR_NO_UPDATE_DQO),
diff --git a/drivers/net/gve/gve_tx.c b/drivers/net/gve/gve_tx.c
index 333e82b141..6398191b0a 100644
--- a/drivers/net/gve/gve_tx.c
+++ b/drivers/net/gve/gve_tx.c
@@ -606,7 +606,7 @@ gve_tx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_id, uint16_t nb_desc,
 	txq->ntfy_id = queue_id;
 	txq->is_gqi_qpl = hw->queue_format == GVE_GQI_QPL_FORMAT;
 	txq->hw = hw;
-	txq->ntfy_addr = &hw->db_bar2[rte_be_to_cpu_32(hw->irq_dbs[txq->ntfy_id].id)];
+	txq->ntfy_addr = &hw->db_bar[rte_be_to_cpu_32(hw->irq_dbs[txq->ntfy_id].id)];
 
 	/* Allocate software ring */
 	txq->sw_ring = rte_zmalloc_socket("gve tx sw ring",
@@ -694,7 +694,7 @@ gve_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 
 	txq = dev->data->tx_queues[tx_queue_id];
 
-	txq->qtx_tail = &hw->db_bar2[rte_be_to_cpu_32(txq->qres->db_index)];
+	txq->qtx_tail = &hw->db_bar[rte_be_to_cpu_32(txq->qres->db_index)];
 	txq->qtx_head =
 		&hw->cnt_array[rte_be_to_cpu_32(txq->qres->counter_index)];
 
diff --git a/drivers/net/gve/gve_tx_dqo.c b/drivers/net/gve/gve_tx_dqo.c
index a44a20b139..fe8b883208 100644
--- a/drivers/net/gve/gve_tx_dqo.c
+++ b/drivers/net/gve/gve_tx_dqo.c
@@ -495,7 +495,7 @@ gve_tx_queue_setup_dqo(struct rte_eth_dev *dev, uint16_t queue_id,
 	txq->port_id = dev->data->port_id;
 	txq->ntfy_id = queue_id;
 	txq->hw = hw;
-	txq->ntfy_addr = &hw->db_bar2[rte_be_to_cpu_32(hw->irq_dbs[txq->ntfy_id].id)];
+	txq->ntfy_addr = &hw->db_bar[rte_be_to_cpu_32(hw->irq_dbs[txq->ntfy_id].id)];
 
 	/* Allocate software ring */
 	sw_size = nb_desc;
@@ -575,7 +575,7 @@ gve_tx_queue_start_dqo(struct rte_eth_dev *dev, uint16_t tx_queue_id)
 
 	txq = dev->data->tx_queues[tx_queue_id];
 
-	txq->qtx_tail = &hw->db_bar2[rte_be_to_cpu_32(txq->qres->db_index)];
+	txq->qtx_tail = &hw->db_bar[rte_be_to_cpu_32(txq->qres->db_index)];
 	txq->qtx_head =
 		&hw->cnt_array[rte_be_to_cpu_32(txq->qres->counter_index)];
 
-- 
2.56.0.rc1.315.gc6ed9934b7-goog