#include "netxen_nic_phan_reg.h"
#include <linux/dma-mapping.h>
-#include <linux/vmalloc.h>
#include <net/ip.h>
MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
-char netxen_nic_driver_name[] = "netxen-nic";
+char netxen_nic_driver_name[] = "netxen_nic";
static char netxen_nic_driver_string[] = "NetXen Network Driver version "
NETXEN_NIC_LINUX_VERSIONID;
#define NETXEN_ADAPTER_UP_MAGIC 777
#define NETXEN_NIC_PEG_TUNE 0
-u8 nx_p2_id = NX_P2_C0;
-
#define DMA_32BIT_MASK 0x00000000ffffffffULL
#define DMA_35BIT_MASK 0x00000007ffffffffULL
static void netxen_tx_timeout_task(struct work_struct *work);
static void netxen_watchdog(unsigned long);
static int netxen_handle_int(struct netxen_adapter *, struct net_device *);
-static int netxen_nic_poll(struct net_device *dev, int *budget);
+static int netxen_nic_poll(struct napi_struct *napi, int budget);
#ifdef CONFIG_NET_POLL_CONTROLLER
static void netxen_nic_poll_controller(struct net_device *netdev);
#endif
#define ADAPTER_LIST_SIZE 12
int netxen_cards_found;
+static void netxen_nic_disable_int(struct netxen_adapter *adapter)
+{
+ 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,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK));
+
+ /* Window = 0 or 1 */
+ if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
+ do {
+ writel(0xffffffff,
+ PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_STATUS));
+ mask = readl(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");
+}
+
+static void netxen_nic_enable_int(struct netxen_adapter *adapter)
+{
+ u32 mask;
+
+ 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, 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;
+ }
+
+ if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
+ mask = 0xbff;
+ if (adapter->intr_scheme != -1 &&
+ adapter->intr_scheme != INTR_SCHEME_PERPORT) {
+ writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
+ }
+ writel(mask,
+ PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK));
+ }
+
+ DPRINTK(1, INFO, "Done with enable Int\n");
+}
+
/*
* netxen_nic_probe()
*
goto err_out_disable_pdev;
pci_set_master(pdev);
- pci_read_config_byte(pdev, PCI_REVISION_ID, &nx_p2_id);
- if (nx_p2_id == NX_P2_C1 &&
+ if (pdev->revision == NX_P2_C1 &&
(pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) &&
(pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) {
pci_using_dac = 1;
adapter->ahw.pdev = pdev;
adapter->ahw.pci_func = pci_func_id;
spin_lock_init(&adapter->tx_lock);
- spin_lock_init(&adapter->lock);
/* remap phys address */
mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
adapter->netdev = netdev;
adapter->pdev = pdev;
+
+ netif_napi_add(netdev, &adapter->napi,
+ netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
+
+ /* 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;
netxen_nic_change_mtu(netdev, netdev->mtu);
SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
- netdev->poll = netxen_nic_poll;
- netdev->weight = NETXEN_NETDEV_WEIGHT;
#ifdef CONFIG_NET_POLL_CONTROLLER
netdev->poll_controller = netxen_nic_poll_controller;
#endif
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;
/* 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
INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
adapter->ahw.pdev = pdev;
adapter->proc_cmd_buf_counter = 0;
- adapter->ahw.revision_id = nx_p2_id;
+ adapter->ahw.revision_id = pdev->revision;
/* make sure Window == 1 */
netxen_nic_pci_change_crbwindow(adapter, 1);
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)));
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);
}
/*
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)
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);
-
- 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);
- }
+ netxen_nic_disable_int(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];
}
}
- unregister_netdev(netdev);
-
vfree(adapter->cmd_buf_arr);
+ if (adapter->portnum == 0) {
+ if (init_firmware_done) {
+ i = 100;
+ do {
+ if (dma_watchdog_shutdown_request(adapter) == 1)
+ break;
+ msleep(100);
+ if (dma_watchdog_shutdown_poll_result(adapter) == 1)
+ break;
+ } while (--i);
+
+ if (i == 0)
+ printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
+ netdev->name);
+
+ /* 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));
+ netxen_pinit_from_rom(adapter, 0);
+ msleep(1);
+ netxen_load_firmware(adapter);
+ 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)));
+
+ i = 100;
+ do {
+ if (dma_watchdog_shutdown_request(adapter) == 1)
+ break;
+ msleep(100);
+ if (dma_watchdog_shutdown_poll_result(adapter) == 1)
+ break;
+ } while (--i);
+
+ if (i) {
+ netxen_free_adapter_offload(adapter);
+ } else {
+ printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n",
+ netdev->name);
+ }
+ }
+
+ if (adapter->irq)
+ free_irq(adapter->irq, adapter);
+
+ if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
+ pci_disable_msi(pdev);
+
iounmap(adapter->ahw.db_base);
iounmap(adapter->ahw.pci_base0);
iounmap(adapter->ahw.pci_base1);
if (!adapter->driver_mismatch)
mod_timer(&adapter->watchdog_timer, jiffies);
+ napi_enable(&adapter->napi);
+
netxen_nic_enable_int(adapter);
/* Done here again so that even if phantom sw overwrote it,
* we set it */
- if (adapter->macaddr_set)
- adapter->macaddr_set(adapter, netdev->dev_addr);
if (adapter->init_port
&& adapter->init_port(adapter, adapter->portnum) != 0) {
del_timer_sync(&adapter->watchdog_timer);
printk(KERN_ERR "%s: Failed to initialize port %d\n",
netxen_nic_driver_name, adapter->portnum);
+ napi_disable(&adapter->napi);
return -EIO;
}
+ if (adapter->macaddr_set)
+ adapter->macaddr_set(adapter, netdev->dev_addr);
netxen_nic_set_link_parameters(adapter);
netif_carrier_off(netdev);
netif_stop_queue(netdev);
+ napi_disable(&adapter->napi);
+
+ netxen_nic_disable_int(adapter);
cmd_buff = adapter->cmd_buf_arr;
for (i = 0; i < adapter->max_tx_desc_count; i++) {
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++;
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 */
}
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;
}
{
struct netxen_adapter *adapter =
container_of(work, struct netxen_adapter, tx_timeout_task);
- unsigned long flags;
printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
netxen_nic_driver_name, adapter->netdev->name);
- spin_lock_irqsave(&adapter->lock, flags);
netxen_nic_close(adapter->netdev);
netxen_nic_open(adapter->netdev);
- spin_unlock_irqrestore(&adapter->lock, flags);
adapter->netdev->trans_start = jiffies;
netif_wake_queue(adapter->netdev);
}
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 (netxen_nic_rx_has_work(adapter) || netxen_nic_tx_has_work(adapter)) {
- if (netif_rx_schedule_prep(netdev)) {
+ if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
/*
* Interrupts are already disabled.
*/
- __netif_rx_schedule(netdev);
+ __netif_rx_schedule(netdev, &adapter->napi);
} 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);
{
struct netxen_adapter *adapter;
struct net_device *netdev;
+ u32 our_int = 0;
if (unlikely(!irq)) {
return IRQ_NONE; /* Not our interrupt */
adapter = (struct netxen_adapter *)data;
netdev = adapter->netdev;
- /* process our status queue (for all 4 ports) */
+
+ if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) {
+ our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR));
+ /* not our interrupt */
+ if ((our_int & (0x80 << adapter->portnum)) == 0)
+ return IRQ_NONE;
+ }
+
+ 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 (netif_running(netdev))
netxen_handle_int(adapter, netdev);
return IRQ_HANDLED;
}
-static int netxen_nic_poll(struct net_device *netdev, int *budget)
+static int netxen_nic_poll(struct napi_struct *napi, int budget)
{
- struct netxen_adapter *adapter = netdev_priv(netdev);
- int work_to_do = min(*budget, netdev->quota);
+ struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi);
+ struct net_device *netdev = adapter->netdev;
int done = 1;
int ctx;
- int this_work_done;
- int work_done = 0;
+ int work_done;
DPRINTK(INFO, "polling for %d descriptors\n", *budget);
* packets are on one context, it gets only half of the quota,
* and ends up not processing it.
*/
- this_work_done = netxen_process_rcv_ring(adapter, ctx,
- work_to_do /
- MAX_RCV_CTX);
- work_done += this_work_done;
+ work_done += netxen_process_rcv_ring(adapter, ctx,
+ budget / MAX_RCV_CTX);
}
- netdev->quota -= work_done;
- *budget -= work_done;
-
- if (work_done >= work_to_do && netxen_nic_rx_has_work(adapter) != 0)
+ if (work_done >= budget && netxen_nic_rx_has_work(adapter) != 0)
done = 0;
if (netxen_process_cmd_ring((unsigned long)adapter) == 0)
DPRINTK(INFO, "new work_done: %d work_to_do: %d\n",
work_done, work_to_do);
if (done) {
- netif_rx_complete(netdev);
+ netif_rx_complete(netdev, napi);
netxen_nic_enable_int(adapter);
}
- return !done;
+ return work_done;
}
#ifdef CONFIG_NET_POLL_CONTROLLER
/*
* Wait for some time to allow the dma to drain, if any.
*/
+ msleep(100);
pci_unregister_driver(&netxen_driver);
destroy_workqueue(netxen_workq);
}
projects / cascardo / linux.git / blobdiff