aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/netxen/netxen_nic_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
-rw-r--r--drivers/net/netxen/netxen_nic_main.c177
1 files changed, 111 insertions, 66 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index 6167b58d273..a66ff58366c 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;
@@ -336,11 +342,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
- if (pci_enable_msi(pdev)) {
+ if (pci_enable_msi(pdev))
adapter->flags &= ~NETXEN_NIC_MSI_ENABLED;
- printk(KERN_WARNING "%s: unable to allocate MSI interrupt"
- " error\n", netxen_nic_driver_name);
- } else
+ else
adapter->flags |= NETXEN_NIC_MSI_ENABLED;
netdev->irq = pdev->irq;
@@ -355,13 +359,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* initialize the adapter */
netxen_initialize_adapter_hw(adapter);
-#ifdef CONFIG_PPC
- if ((adapter->ahw.boardcfg.board_type ==
- NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) &&
- (pci_func_id == 2))
- goto err_out_free_adapter;
-#endif /* CONFIG_PPC */
-
/*
* Adapter in our case is quad port so initialize it before
* initializing the ports
@@ -509,22 +506,30 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
NETXEN_CAM_RAM(0x1fc)));
if (val == 0x55555555) {
/* This is the first boot after power up */
+ netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val);
+ if (!(val & 0x4)) {
+ val |= 0x4;
+ netxen_nic_write_w0(adapter, NETXEN_PCIE_REG(0x4), val);
+ netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val);
+ if (!(val & 0x4))
+ printk(KERN_ERR "%s: failed to set MSI bit in PCI-e reg\n",
+ netxen_nic_driver_name);
+ }
val = readl(NETXEN_CRB_NORMALIZE(adapter,
NETXEN_ROMUSB_GLB_SW_RESET));
printk(KERN_INFO"NetXen: read 0x%08x for reset reg.\n",val);
if (val != 0x80000f) {
/* clear the register for future unloads/loads */
- writel(0, NETXEN_CRB_NORMALIZE(adapter,
- NETXEN_CAM_RAM(0x1fc)));
- printk(KERN_ERR "ERROR in NetXen HW init sequence.\n");
- err = -ENODEV;
- goto err_out_free_dev;
+ writel(0, NETXEN_CRB_NORMALIZE(adapter,
+ NETXEN_CAM_RAM(0x1fc)));
+ printk(KERN_ERR "ERROR in NetXen HW init sequence.\n");
+ err = -ENODEV;
+ goto err_out_free_dev;
}
-
- /* clear the register for future unloads/loads */
- writel(0, NETXEN_CRB_NORMALIZE(adapter,
- NETXEN_CAM_RAM(0x1fc)));
}
+
+ /* clear the register for future unloads/loads */
+ writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc)));
printk(KERN_INFO "State: 0x%0x\n",
readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)));
@@ -542,13 +547,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
NETXEN_ROMUSB_GLB_PEGTUNE_DONE));
/* Handshake with the card before we register the devices. */
netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
-
- /* leave the hw in the same state as reboot */
- writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
- netxen_pinit_from_rom(adapter, 0);
- udelay(500);
- netxen_load_firmware(adapter);
- netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
}
/*
@@ -639,8 +637,8 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
struct netxen_rx_buffer *buffer;
struct netxen_recv_context *recv_ctx;
struct netxen_rcv_desc_ctx *rcv_desc;
- int i;
- int ctxid, ring;
+ int i, ctxid, ring;
+ static int init_firmware_done = 0;
adapter = pci_get_drvdata(pdev);
if (adapter == NULL)
@@ -648,30 +646,20 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
netdev = adapter->netdev;
- netxen_nic_disable_int(adapter);
- if (adapter->irq)
- free_irq(adapter->irq, adapter);
-
+ unregister_netdev(netdev);
+
if (adapter->stop_port)
adapter->stop_port(adapter);
- if ((adapter->flags & NETXEN_NIC_MSI_ENABLED))
- pci_disable_msi(pdev);
-
- if (adapter->portnum == 0)
- netxen_free_adapter_offload(adapter);
+ netxen_nic_disable_int(adapter);
- if(adapter->portnum == 0) {
- /* leave the hw in the same state as reboot */
- writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
- netxen_pinit_from_rom(adapter, 0);
- udelay(500);
- netxen_load_firmware(adapter);
- netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
- }
+ if (adapter->irq)
+ free_irq(adapter->irq, adapter);
- if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
+ if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
+ init_firmware_done++;
netxen_free_hw_resources(adapter);
+ }
for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) {
recv_ctx = &adapter->recv_ctx[ctxid];
@@ -691,17 +679,73 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
}
}
- unregister_netdev(netdev);
+ if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
+ pci_disable_msi(pdev);
vfree(adapter->cmd_buf_arr);
+ pci_disable_device(pdev);
+
+ if (adapter->portnum == 0) {
+ if (init_firmware_done) {
+ dma_watchdog_shutdown_request(adapter);
+ msleep(100);
+ i = 100;
+ while ((dma_watchdog_shutdown_poll_result(adapter) != 1) && i) {
+ printk(KERN_INFO "dma_watchdog_shutdown_poll still in progress\n");
+ msleep(100);
+ i--;
+ }
+
+ if (i == 0) {
+ printk(KERN_ERR "dma_watchdog_shutdown_request failed\n");
+ return;
+ }
+
+ /* clear the register for future unloads/loads */
+ writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc)));
+ printk(KERN_INFO "State: 0x%0x\n",
+ readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)));
+
+ /* leave the hw in the same state as reboot */
+ writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE));
+ if (netxen_pinit_from_rom(adapter, 0))
+ return;
+ msleep(1);
+ if (netxen_load_firmware(adapter))
+ return;
+ netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
+ }
+
+ /* clear the register for future unloads/loads */
+ writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc)));
+ printk(KERN_INFO "State: 0x%0x\n",
+ readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)));
+
+ dma_watchdog_shutdown_request(adapter);
+ msleep(100);
+ i = 100;
+ while ((dma_watchdog_shutdown_poll_result(adapter) != 1) && i) {
+ printk(KERN_INFO "dma_watchdog_shutdown_poll still in progress\n");
+ msleep(100);
+ i--;
+ }
+
+ if (i) {
+ netxen_free_adapter_offload(adapter);
+ } else {
+ printk(KERN_ERR "failed to dma shutdown\n");
+ return;
+ }
+
+ }
+
iounmap(adapter->ahw.db_base);
iounmap(adapter->ahw.pci_base0);
iounmap(adapter->ahw.pci_base1);
iounmap(adapter->ahw.pci_base2);
pci_release_regions(pdev);
- pci_disable_device(pdev);
pci_set_drvdata(pdev, NULL);
free_netdev(netdev);
@@ -798,7 +842,7 @@ static int netxen_nic_close(struct net_device *netdev)
if (buffrag->dma) {
pci_unmap_single(adapter->pdev, buffrag->dma,
buffrag->length, PCI_DMA_TODEVICE);
- buffrag->dma = (u64) NULL;
+ buffrag->dma = 0ULL;
}
for (j = 0; j < cmd_buff->frag_count; j++) {
buffrag++;
@@ -806,7 +850,7 @@ static int netxen_nic_close(struct net_device *netdev)
pci_unmap_page(adapter->pdev, buffrag->dma,
buffrag->length,
PCI_DMA_TODEVICE);
- buffrag->dma = (u64) NULL;
+ buffrag->dma = 0ULL;
}
}
/* Free the skb we received in netxen_nic_xmit_frame */
@@ -816,8 +860,10 @@ static int netxen_nic_close(struct net_device *netdev)
}
cmd_buff++;
}
- FLUSH_SCHEDULED_WORK();
- del_timer_sync(&adapter->watchdog_timer);
+ if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
+ FLUSH_SCHEDULED_WORK();
+ del_timer_sync(&adapter->watchdog_timer);
+ }
return 0;
}
@@ -1103,28 +1149,26 @@ 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)) {
@@ -1136,7 +1180,7 @@ 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);
@@ -1258,6 +1302,7 @@ static void __exit netxen_exit_module(void)
/*
* Wait for some time to allow the dma to drain, if any.
*/
+ msleep(100);
pci_unregister_driver(&netxen_driver);
destroy_workqueue(netxen_workq);
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-03 15:53:25 +0000