netxen: improve msi support

[karo-tx-linux.git] / drivers / net / netxen / netxen_nic_main.c

diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 2341b89abc4d984f62523e231f36dfc0adb6154f..cd665da85c7f72978bafa2cfe92b90653ee558bf 100644 (file)
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -149,33 +149,31 @@ static void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
 
 #define        ADAPTER_LIST_SIZE 12
 
+static uint32_t msi_tgt_status[4] = {
+       ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
+       ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3
+};
+
+static uint32_t sw_int_mask[4] = {
+       CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1,
+       CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3
+};
+
 static void netxen_nic_disable_int(struct netxen_adapter *adapter)
 {
-       uint32_t        mask = 0x7ff;
+       u32 mask = 0x7ff;
        int retries = 32;
+       int port = adapter->portnum;
+       int pci_fn = adapter->ahw.pci_func;
 
-       DPRINTK(1, INFO, "Entered ISR Disable \n");
-
-       switch (adapter->portnum) {
-       case 0:
-               writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_0));
-               break;
-       case 1:
-               writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_1));
-               break;
-       case 2:
-               writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_2));
-               break;
-       case 3:
-               writel(0x0, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_3));
-               break;
+       if (adapter->msi_mode != MSI_MODE_MULTIFUNC) {
+               writel(0x0, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port]));
        }
 
        if (adapter->intr_scheme != -1 &&
            adapter->intr_scheme != INTR_SCHEME_PERPORT)
                writel(mask,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
 
-       /* Window = 0 or 1 */
        if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
                do {
                        writel(0xffffffff,
@@ -190,14 +188,18 @@ static void netxen_nic_disable_int(struct netxen_adapter *adapter)
                        printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n",
                                        netxen_nic_driver_name);
                }
+       } else {
+               if (adapter->msi_mode == MSI_MODE_MULTIFUNC) {
+                       writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter,
+                                               msi_tgt_status[pci_fn]));
+               }
        }
-
-       DPRINTK(1, INFO, "Done with Disable Int\n");
 }
 
 static void netxen_nic_enable_int(struct netxen_adapter *adapter)
 {
        u32 mask;
+       int port = adapter->portnum;
 
        DPRINTK(1, INFO, "Entered ISR Enable \n");
 
@@ -218,20 +220,7 @@ static void netxen_nic_enable_int(struct netxen_adapter *adapter)
                writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
        }
 
-       switch (adapter->portnum) {
-       case 0:
-               writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_0));
-               break;
-       case 1:
-               writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_1));
-               break;
-       case 2:
-               writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_2));
-               break;
-       case 3:
-               writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_3));
-               break;
-       }
+       writel(0x1, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port]));
 
        if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
                mask = 0xbff;
@@ -277,7 +266,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        struct netxen_recv_context *recv_ctx = NULL;
        struct netxen_rcv_desc_ctx *rcv_desc = NULL;
        struct netxen_cmd_buffer *cmd_buf_arr = NULL;
-       u64 mac_addr[FLASH_NUM_PORTS + 1];
+       __le64 mac_addr[FLASH_NUM_PORTS + 1];
        int valid_mac = 0;
        u32 val;
        int pci_func_id = PCI_FUNC(pdev->devfn);
@@ -401,6 +390,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        /* this will be read from FW later */
        adapter->intr_scheme = -1;
+       adapter->msi_mode = -1;
 
        /* This will be reset for mezz cards  */
        adapter->portnum = pci_func_id;