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authordhananjay.phadke@gmail.com <dhananjay.phadke@gmail.com>2007-07-01 14:56:00 -0400
committerJeff Garzik <jeff@garzik.org>2007-07-02 08:24:52 -0400
commit2d1a3bbdf21d05e16703c8d608628ae4676eb3ac (patch)
tree64df196fd0cd4dcc17f614ab65a25637f1ce5531 /drivers/net/netxen/netxen_nic_main.c
parent644caeefb3bbf539e74b7098648ff0bfc9e52bb3 (diff)
RESEND [PATCH 2/3] NetXen: Support per PCI-function interrupt mask registers
This patch updates the various access routines to access different control and status settings present in different register locations. This will fix problems related to working of different ports in multi Port card. Signed-off by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off by: Milan Bag <mbag@netxen.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
-rw-r--r--drivers/net/netxen/netxen_nic_main.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 663bc47c1f63..dba8e6b29ff3 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -308,7 +308,13 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
308 308
309 adapter->netdev = netdev; 309 adapter->netdev = netdev;
310 adapter->pdev = pdev; 310 adapter->pdev = pdev;
311
312 /* this will be read from FW later */
313 adapter->intr_scheme = -1;
314
315 /* This will be reset for mezz cards */
311 adapter->portnum = pci_func_id; 316 adapter->portnum = pci_func_id;
317 adapter->status &= ~NETXEN_NETDEV_STATUS;
312 318
313 netdev->open = netxen_nic_open; 319 netdev->open = netxen_nic_open;
314 netdev->stop = netxen_nic_close; 320 netdev->stop = netxen_nic_close;
@@ -1100,28 +1106,26 @@ static int
1100netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) 1106netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev)
1101{ 1107{
1102 u32 ret = 0; 1108 u32 ret = 0;
1109 u32 our_int = 0;
1103 1110
1104 DPRINTK(INFO, "Entered handle ISR\n"); 1111 DPRINTK(INFO, "Entered handle ISR\n");
1105 adapter->stats.ints++; 1112 adapter->stats.ints++;
1106 1113
1107 if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { 1114 if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
1108 int count = 0;
1109 u32 mask;
1110 u32 our_int = 0;
1111 our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); 1115 our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
1112 /* not our interrupt */ 1116 /* not our interrupt */
1113 if ((our_int & (0x80 << adapter->portnum)) == 0) 1117 if ((our_int & (0x80 << adapter->portnum)) == 0)
1114 return ret; 1118 return ret;
1115 netxen_nic_disable_int(adapter); 1119 }
1116 /* Window = 0 or 1 */
1117 do {
1118 writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter,
1119 ISR_INT_TARGET_STATUS));
1120 mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR));
1121 } while (((mask & 0x80) != 0) && (++count < 32));
1122 if ((mask & 0x80) != 0)
1123 printk("Could not disable interrupt completely\n");
1124 1120
1121 netxen_nic_disable_int(adapter);
1122
1123 if (adapter->intr_scheme == INTR_SCHEME_PERPORT) {
1124 /* claim interrupt */
1125 if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
1126 writel(our_int & ~((u32)(0x80 << adapter->portnum)),
1127 NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
1128 }
1125 } 1129 }
1126 1130
1127 if (netxen_nic_rx_has_work(adapter) || netxen_nic_tx_has_work(adapter)) { 1131 if (netxen_nic_rx_has_work(adapter) || netxen_nic_tx_has_work(adapter)) {
@@ -1133,7 +1137,7 @@ netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev)
1133 } else { 1137 } else {
1134 static unsigned int intcount = 0; 1138 static unsigned int intcount = 0;
1135 if ((++intcount & 0xfff) == 0xfff) 1139 if ((++intcount & 0xfff) == 0xfff)
1136 printk(KERN_ERR 1140 DPRINTK(KERN_ERR
1137 "%s: %s interrupt %d while in poll\n", 1141 "%s: %s interrupt %d while in poll\n",
1138 netxen_nic_driver_name, netdev->name, 1142 netxen_nic_driver_name, netdev->name,
1139 intcount); 1143 intcount);