diff options
Diffstat (limited to 'drivers/net/netxen')
-rw-r--r-- | drivers/net/netxen/netxen_nic.h | 102 | ||||
-rw-r--r-- | drivers/net/netxen/netxen_nic_hw.c | 6 | ||||
-rw-r--r-- | drivers/net/netxen/netxen_nic_init.c | 2 | ||||
-rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 30 | ||||
-rw-r--r-- | drivers/net/netxen/netxen_nic_phan_reg.h | 14 |
5 files changed, 124 insertions, 30 deletions
diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h index 91f25e0a638..6ce93fcbed3 100644 --- a/drivers/net/netxen/netxen_nic.h +++ b/drivers/net/netxen/netxen_nic.h @@ -937,6 +937,7 @@ struct netxen_adapter { struct netxen_ring_ctx *ctx_desc; struct pci_dev *ctx_desc_pdev; dma_addr_t ctx_desc_phys_addr; + int intr_scheme; int (*enable_phy_interrupts) (struct netxen_adapter *); int (*disable_phy_interrupts) (struct netxen_adapter *); void (*handle_phy_intr) (struct netxen_adapter *); @@ -1080,37 +1081,106 @@ struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev); static inline void netxen_nic_disable_int(struct netxen_adapter *adapter) { - /* - * ISR_INT_MASK: Can be read from window 0 or 1. - */ - writel(0x7ff, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); + uint32_t mask = 0x7ff; + int retries = 32; + + 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->intr_scheme != -1 && + adapter->intr_scheme != INTR_SCHEME_PERPORT) { + writel(mask, + (void *)(PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK))); + } + + /* Window = 0 or 1 */ + if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { + do { + writel(0xffffffff, (void *) + (PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_STATUS))); + mask = readl((void *) + (pci_base_offset(adapter, ISR_INT_VECTOR))); + if (!(mask & 0x80)) + break; + udelay(10); + } while (--retries); + + if (!retries) { + printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n", + netxen_nic_driver_name); + } + } + + DPRINTK(1, INFO, "Done with Disable Int\n"); + return; } static inline void netxen_nic_enable_int(struct netxen_adapter *adapter) { u32 mask; - switch (adapter->ahw.board_type) { - case NETXEN_NIC_GBE: - mask = 0x77b; + DPRINTK(1, INFO, "Entered ISR Enable \n"); + + if (adapter->intr_scheme != -1 && + adapter->intr_scheme != INTR_SCHEME_PERPORT) { + switch (adapter->ahw.board_type) { + case NETXEN_NIC_GBE: + mask = 0x77b; + break; + case NETXEN_NIC_XGBE: + mask = 0x77f; + break; + default: + mask = 0x7ff; + break; + } + + writel(mask, + (void *)(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 NETXEN_NIC_XGBE: - mask = 0x77f; + case 1: + writel(0x1, NETXEN_CRB_NORMALIZE(adapter, CRB_SW_INT_MASK_1)); break; - default: - mask = 0x7ff; + 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(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); - if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { mask = 0xbff; - writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); - writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, - ISR_INT_TARGET_MASK)); + if (adapter->intr_scheme != -1 && + adapter->intr_scheme != INTR_SCHEME_PERPORT) { + writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); + } + writel(mask, + (void *)(PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK))); } + + DPRINTK(1, INFO, "Done with enable Int\n"); + + return; } /* diff --git a/drivers/net/netxen/netxen_nic_hw.c b/drivers/net/netxen/netxen_nic_hw.c index c012764d114..2b40a5a19c4 100644 --- a/drivers/net/netxen/netxen_nic_hw.c +++ b/drivers/net/netxen/netxen_nic_hw.c @@ -392,7 +392,11 @@ int netxen_nic_hw_resources(struct netxen_adapter *adapter) return err; } } - DPRINTK(INFO, "Recieve Peg ready too. starting stuff\n"); + adapter->intr_scheme = readl( + NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_FW)); + printk(KERN_NOTICE "%s: FW capabilities:0x%x\n", netdev->name, + adapter->intr_scheme); + DPRINTK(INFO, "Receive Peg ready too. starting stuff\n"); addr = netxen_alloc(adapter->ahw.pdev, sizeof(struct netxen_ring_ctx) + diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c index bb23f4c360d..15f6dc5a1cf 100644 --- a/drivers/net/netxen/netxen_nic_init.c +++ b/drivers/net/netxen/netxen_nic_init.c @@ -139,6 +139,8 @@ int netxen_init_firmware(struct netxen_adapter *adapter) return err; } /* Window 1 call */ + writel(INTR_SCHEME_PERPORT, + NETXEN_CRB_NORMALIZE(adapter, CRB_NIC_CAPABILITIES_HOST)); writel(MPORT_MULTI_FUNCTION_MODE, NETXEN_CRB_NORMALIZE(adapter, CRB_MPORT_MODE)); writel(PHAN_INITIALIZE_ACK, diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 663bc47c1f6..dba8e6b29ff 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) adapter->netdev = netdev; adapter->pdev = pdev; + + /* this will be read from FW later */ + adapter->intr_scheme = -1; + + /* This will be reset for mezz cards */ adapter->portnum = pci_func_id; + adapter->status &= ~NETXEN_NETDEV_STATUS; netdev->open = netxen_nic_open; netdev->stop = netxen_nic_close; @@ -1100,28 +1106,26 @@ static int netxen_handle_int(struct netxen_adapter *adapter, struct net_device *netdev) { u32 ret = 0; + u32 our_int = 0; DPRINTK(INFO, "Entered handle ISR\n"); adapter->stats.ints++; if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { - int count = 0; - u32 mask; - u32 our_int = 0; our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); /* not our interrupt */ if ((our_int & (0x80 << adapter->portnum)) == 0) return ret; - netxen_nic_disable_int(adapter); - /* Window = 0 or 1 */ - do { - writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter, - ISR_INT_TARGET_STATUS)); - mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR)); - } while (((mask & 0x80) != 0) && (++count < 32)); - if ((mask & 0x80) != 0) - printk("Could not disable interrupt completely\n"); + } + netxen_nic_disable_int(adapter); + + if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { + /* claim interrupt */ + if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { + writel(our_int & ~((u32)(0x80 << adapter->portnum)), + NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); + } } 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) } else { static unsigned int intcount = 0; if ((++intcount & 0xfff) == 0xfff) - printk(KERN_ERR + DPRINTK(KERN_ERR "%s: %s interrupt %d while in poll\n", netxen_nic_driver_name, netdev->name, intcount); diff --git a/drivers/net/netxen/netxen_nic_phan_reg.h b/drivers/net/netxen/netxen_nic_phan_reg.h index 9457fc7249c..10fe6fafa6f 100644 --- a/drivers/net/netxen/netxen_nic_phan_reg.h +++ b/drivers/net/netxen/netxen_nic_phan_reg.h @@ -114,6 +114,20 @@ #define CRB_V2P_3 NETXEN_NIC_REG(0x29c) #define CRB_V2P(port) (CRB_V2P_0+((port)*4)) #define CRB_DRIVER_VERSION NETXEN_NIC_REG(0x2a0) +/* sw int status/mask registers */ +#define CRB_SW_INT_MASK_0 NETXEN_NIC_REG(0x1d8) +#define CRB_SW_INT_MASK_1 NETXEN_NIC_REG(0x1e0) +#define CRB_SW_INT_MASK_2 NETXEN_NIC_REG(0x1e4) +#define CRB_SW_INT_MASK_3 NETXEN_NIC_REG(0x1e8) + +/* + * capabilities register, can be used to selectively enable/disable features + * for backward compability + */ +#define CRB_NIC_CAPABILITIES_HOST NETXEN_NIC_REG(0x1a8) +#define CRB_NIC_CAPABILITIES_FW NETXEN_NIC_REG(0x1dc) + +#define INTR_SCHEME_PERPORT 0x1 /* used for ethtool tests */ #define CRB_SCRATCHPAD_TEST NETXEN_NIC_REG(0x280) |