netxen: Add default and limit macros for ring sizes.

Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/netxen/netxen_nic.h

@@ -200,13 +200,20 @@
 #define RCV_RING_JUMBO	1
 #define RCV_RING_LRO	2
 
-#define MAX_CMD_DESCRIPTORS		4096
-#define MAX_RCV_DESCRIPTORS		16384
-#define MAX_CMD_DESCRIPTORS_HOST	1024
-#define MAX_RCV_DESCRIPTORS_1G		2048
-#define MAX_RCV_DESCRIPTORS_10G		4096
-#define MAX_JUMBO_RCV_DESCRIPTORS	1024
+#define MIN_CMD_DESCRIPTORS		64
+#define MIN_RCV_DESCRIPTORS		64
+#define MIN_JUMBO_DESCRIPTORS		32
+
+#define MAX_CMD_DESCRIPTORS		1024
+#define MAX_RCV_DESCRIPTORS_1G		4096
+#define MAX_RCV_DESCRIPTORS_10G		8192
+#define MAX_JUMBO_RCV_DESCRIPTORS_1G	512
+#define MAX_JUMBO_RCV_DESCRIPTORS_10G	1024
 #define MAX_LRO_RCV_DESCRIPTORS		8
+
+#define DEFAULT_RCV_DESCRIPTORS_1G	2048
+#define DEFAULT_RCV_DESCRIPTORS_10G	4096
+
 #define NETXEN_CTX_SIGNATURE	0xdee0
 #define NETXEN_CTX_SIGNATURE_V2	0x0002dee0
 #define NETXEN_CTX_RESET	0xbad0

drivers/net/netxen/netxen_nic_ethtool.c

@@ -494,20 +494,21 @@ netxen_nic_get_ringparam(struct net_device *dev, struct ethtool_ringparam *ring)
 {
 	struct netxen_adapter *adapter = netdev_priv(dev);
 
-	ring->rx_pending = 0;
-	ring->rx_jumbo_pending = 0;
-	ring->rx_pending += adapter->recv_ctx.
-		rds_rings[RCV_RING_NORMAL].num_desc;
-	ring->rx_jumbo_pending += adapter->recv_ctx.
-		rds_rings[RCV_RING_JUMBO].num_desc;
+	ring->rx_pending = adapter->num_rxd;
+	ring->rx_jumbo_pending = adapter->num_jumbo_rxd;
+	ring->rx_jumbo_pending += adapter->num_lro_rxd;
 	ring->tx_pending = adapter->num_txd;
 
-	if (adapter->ahw.port_type == NETXEN_NIC_GBE)
+	if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
 		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_1G;
-	else
+		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+	} else {
 		ring->rx_max_pending = MAX_RCV_DESCRIPTORS_10G;
-	ring->tx_max_pending = MAX_CMD_DESCRIPTORS_HOST;
-	ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS;
+		ring->rx_jumbo_max_pending = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+	}
+
+	ring->tx_max_pending = MAX_CMD_DESCRIPTORS;
+
 	ring->rx_mini_max_pending = 0;
 	ring->rx_mini_pending = 0;
 }

drivers/net/netxen/netxen_nic_main.c

@@ -283,12 +283,16 @@ nx_update_dma_mask(struct netxen_adapter *adapter)
 	return 0;
 }
 
-static void netxen_check_options(struct netxen_adapter *adapter)
+static void
+netxen_check_options(struct netxen_adapter *adapter)
 {
-	if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
-		adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G;
-	else if (adapter->ahw.port_type == NETXEN_NIC_GBE)
-		adapter->num_rxd = MAX_RCV_DESCRIPTORS_1G;
+	if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
+		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
+		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
+	} else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
+		adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
+		adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
+	}
 
 	adapter->msix_supported = 0;
 	if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
@@ -306,11 +310,15 @@ static void netxen_check_options(struct netxen_adapter *adapter)
 		}
 	}
 
-	adapter->num_txd = MAX_CMD_DESCRIPTORS_HOST;
-	adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS;
-	adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
+	adapter->num_txd = MAX_CMD_DESCRIPTORS;
 
-	return;
+	if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
+		adapter->max_rds_rings = 3;
+	} else {
+		adapter->num_lro_rxd = 0;
+		adapter->max_rds_rings = 2;
+	}
 }
 
 static int
@@ -908,11 +916,6 @@ netxen_nic_attach(struct netxen_adapter *adapter)
 		return -EIO;
 	}
 
-	if (adapter->fw_major < 4)
-		adapter->max_rds_rings = 3;
-	else
-		adapter->max_rds_rings = 2;
-
 	err = netxen_alloc_sw_resources(adapter);
 	if (err) {
 		printk(KERN_ERR "%s: Error in setting sw resources\n",
@@ -1923,8 +1926,6 @@ static struct pci_driver netxen_driver = {
 #endif
 };
 
-/* Driver Registration on NetXen card    */
-
 static int __init netxen_init_module(void)
 {
 	printk(KERN_INFO "%s\n", netxen_nic_driver_string);