ixgbe: Remove legacy descriptor support

The ethtool offline test is the only consumer of the legacy descriptors.
Update that path to only use advanced descriptors, and remove all support
for legacy descriptors.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 19 insertions, 14 deletions

diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 2a978008fd6e..1464b33f1b8e 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -1440,7 +1440,7 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 		goto err_nomem;
 	}
 
-	tx_ring->size = tx_ring->count * sizeof(struct ixgbe_legacy_tx_desc);
+	tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc);
 	tx_ring->size = ALIGN(tx_ring->size, 4096);
 	if (!(tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size,
 						   &tx_ring->dma))) {
@@ -1454,7 +1454,7 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_TDBAH(0),
 			((u64) tx_ring->dma >> 32));
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_TDLEN(0),
-			tx_ring->count * sizeof(struct ixgbe_legacy_tx_desc));
+			tx_ring->count * sizeof(union ixgbe_adv_tx_desc));
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_TDH(0), 0);
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_TDT(0), 0);
 
@@ -1472,7 +1472,7 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_TXDCTL(0), reg_data);
 
 	for (i = 0; i < tx_ring->count; i++) {
-		struct ixgbe_legacy_tx_desc *desc = IXGBE_TX_DESC(*tx_ring, i);
+		union ixgbe_adv_tx_desc *desc = IXGBE_TX_DESC_ADV(*tx_ring, i);
 		struct sk_buff *skb;
 		unsigned int size = 1024;
 
@@ -1486,13 +1486,18 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 		tx_ring->tx_buffer_info[i].length = skb->len;
 		tx_ring->tx_buffer_info[i].dma =
 			pci_map_single(pdev, skb->data, skb->len,
-					PCI_DMA_TODEVICE);
-		desc->buffer_addr = cpu_to_le64(tx_ring->tx_buffer_info[i].dma);
-		desc->lower.data = cpu_to_le32(skb->len);
-		desc->lower.data |= cpu_to_le32(IXGBE_TXD_CMD_EOP |
-		                                IXGBE_TXD_CMD_IFCS |
-		                                IXGBE_TXD_CMD_RS);
-		desc->upper.data = 0;
+			               PCI_DMA_TODEVICE);
+		desc->read.buffer_addr =
+		                    cpu_to_le64(tx_ring->tx_buffer_info[i].dma);
+		desc->read.cmd_type_len = cpu_to_le32(skb->len);
+		desc->read.cmd_type_len |= cpu_to_le32(IXGBE_TXD_CMD_EOP |
+		                                       IXGBE_TXD_CMD_IFCS |
+		                                       IXGBE_TXD_CMD_RS);
+		desc->read.olinfo_status = 0;
+		if (adapter->hw.mac.type == ixgbe_mac_82599EB)
+			desc->read.olinfo_status |=
+			                (skb->len << IXGBE_ADVTXD_PAYLEN_SHIFT);
+
 	}
 
 	/* Setup Rx Descriptor ring and Rx buffers */
@@ -1508,7 +1513,7 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 		goto err_nomem;
 	}
 
-	rx_ring->size = rx_ring->count * sizeof(struct ixgbe_legacy_rx_desc);
+	rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc);
 	rx_ring->size = ALIGN(rx_ring->size, 4096);
 	if (!(rx_ring->desc = pci_alloc_consistent(pdev, rx_ring->size,
 						   &rx_ring->dma))) {
@@ -1566,8 +1571,8 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 	IXGBE_WRITE_REG(&adapter->hw, IXGBE_RXCTRL, rctl);
 
 	for (i = 0; i < rx_ring->count; i++) {
-		struct ixgbe_legacy_rx_desc *rx_desc =
-					IXGBE_RX_DESC(*rx_ring, i);
+		union ixgbe_adv_rx_desc *rx_desc =
+		                                 IXGBE_RX_DESC_ADV(*rx_ring, i);
 		struct sk_buff *skb;
 
 		skb = alloc_skb(IXGBE_RXBUFFER_2048 + NET_IP_ALIGN, GFP_KERNEL);
@@ -1580,7 +1585,7 @@ static int ixgbe_setup_desc_rings(struct ixgbe_adapter *adapter)
 		rx_ring->rx_buffer_info[i].dma =
 			pci_map_single(pdev, skb->data, IXGBE_RXBUFFER_2048,
 			               PCI_DMA_FROMDEVICE);
-		rx_desc->buffer_addr =
+		rx_desc->read.pkt_addr =
 				cpu_to_le64(rx_ring->rx_buffer_info[i].dma);
 		memset(skb->data, 0x00, skb->len);
 	}