[PATCH v1 01/13] net/ixgbe: remove unused field in Rx queue struct

[Anatoly Burakov <anatoly.burakov@intel.com>]

The `rdh` (read head) field in the `ixgbe_rx_queue` struct is not used
anywhere in the codebase, and can be removed.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 drivers/net/intel/ixgbe/ixgbe_rxtx.c | 9 ++-------
 drivers/net/intel/ixgbe/ixgbe_rxtx.h | 1 -
 2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/net/intel/ixgbe/ixgbe_rxtx.c b/drivers/net/intel/ixgbe/ixgbe_rxtx.c
index 95c80ac1b8..0c07ce3186 100644
--- a/drivers/net/intel/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/intel/ixgbe/ixgbe_rxtx.c
@@ -3296,17 +3296,12 @@ ixgbe_dev_rx_queue_setup(struct rte_eth_dev *dev,
 	/*
 	 * Modified to setup VFRDT for Virtual Function
 	 */
-	if (ixgbe_is_vf(dev)) {
+	if (ixgbe_is_vf(dev))
 		rxq->rdt_reg_addr =
 			IXGBE_PCI_REG_ADDR(hw, IXGBE_VFRDT(queue_idx));
-		rxq->rdh_reg_addr =
-			IXGBE_PCI_REG_ADDR(hw, IXGBE_VFRDH(queue_idx));
-	} else {
+	else
 		rxq->rdt_reg_addr =
 			IXGBE_PCI_REG_ADDR(hw, IXGBE_RDT(rxq->reg_idx));
-		rxq->rdh_reg_addr =
-			IXGBE_PCI_REG_ADDR(hw, IXGBE_RDH(rxq->reg_idx));
-	}
 
 	rxq->rx_ring_phys_addr = rz->iova;
 	rxq->rx_ring = (union ixgbe_adv_rx_desc *) rz->addr;
diff --git a/drivers/net/intel/ixgbe/ixgbe_rxtx.h b/drivers/net/intel/ixgbe/ixgbe_rxtx.h
index 641f982b01..20a5c5a0af 100644
--- a/drivers/net/intel/ixgbe/ixgbe_rxtx.h
+++ b/drivers/net/intel/ixgbe/ixgbe_rxtx.h
@@ -85,7 +85,6 @@ struct ixgbe_rx_queue {
 	volatile union ixgbe_adv_rx_desc *rx_ring; /**< RX ring virtual address. */
 	uint64_t            rx_ring_phys_addr; /**< RX ring DMA address. */
 	volatile uint32_t   *rdt_reg_addr; /**< RDT register address. */
-	volatile uint32_t   *rdh_reg_addr; /**< RDH register address. */
 	struct ixgbe_rx_entry *sw_ring; /**< address of RX software ring. */
 	struct ixgbe_scattered_rx_entry *sw_sc_ring; /**< address of scattered Rx software ring. */
 	struct rte_mbuf *pkt_first_seg; /**< First segment of current packet. */
-- 
2.47.1