forcedeth: add new optimization mode
[cascardo/linux.git] / drivers / net / forcedeth.c
index e3b7305..07e245d 100644 (file)
@@ -87,8 +87,8 @@
 #define DEV_HAS_MSI_X              0x000080  /* device supports MSI-X */
 #define DEV_HAS_POWER_CNTRL        0x000100  /* device supports power savings */
 #define DEV_HAS_STATISTICS_V1      0x000200  /* device supports hw statistics version 1 */
-#define DEV_HAS_STATISTICS_V2      0x000400  /* device supports hw statistics version 2 */
-#define DEV_HAS_STATISTICS_V3      0x000800  /* device supports hw statistics version 3 */
+#define DEV_HAS_STATISTICS_V2      0x000600  /* device supports hw statistics version 2 */
+#define DEV_HAS_STATISTICS_V3      0x000e00  /* device supports hw statistics version 3 */
 #define DEV_HAS_TEST_EXTENDED      0x001000  /* device supports extended diagnostic test */
 #define DEV_HAS_MGMT_UNIT          0x002000  /* device supports management unit */
 #define DEV_HAS_CORRECT_MACADDR    0x004000  /* device supports correct mac address order */
@@ -120,10 +120,6 @@ enum {
 #define NVREG_IRQ_RX_ALL               (NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_RX_FORCED)
 #define NVREG_IRQ_OTHER                        (NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RECOVER_ERROR)
 
-#define NVREG_IRQ_UNKNOWN      (~(NVREG_IRQ_RX_ERROR|NVREG_IRQ_RX|NVREG_IRQ_RX_NOBUF|NVREG_IRQ_TX_ERR| \
-                                       NVREG_IRQ_TX_OK|NVREG_IRQ_TIMER|NVREG_IRQ_LINK|NVREG_IRQ_RX_FORCED| \
-                                       NVREG_IRQ_TX_FORCED|NVREG_IRQ_RECOVER_ERROR))
-
        NvRegUnknownSetupReg6 = 0x008,
 #define NVREG_UNKSETUP6_VAL            3
 
@@ -759,6 +755,7 @@ struct fe_priv {
        dma_addr_t ring_addr;
        struct pci_dev *pci_dev;
        u32 orig_mac[2];
+       u32 events;
        u32 irqmask;
        u32 desc_ver;
        u32 txrxctl_bits;
@@ -845,9 +842,10 @@ static int max_interrupt_work = 15;
  */
 enum {
        NV_OPTIMIZATION_MODE_THROUGHPUT,
-       NV_OPTIMIZATION_MODE_CPU
+       NV_OPTIMIZATION_MODE_CPU,
+       NV_OPTIMIZATION_MODE_DYNAMIC
 };
-static int optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT;
+static int optimization_mode = NV_OPTIMIZATION_MODE_DYNAMIC;
 
 /*
  * Poll interval for timer irq
@@ -1069,6 +1067,24 @@ static void nv_disable_hw_interrupts(struct net_device *dev, u32 mask)
        }
 }
 
+static void nv_napi_enable(struct net_device *dev)
+{
+#ifdef CONFIG_FORCEDETH_NAPI
+       struct fe_priv *np = get_nvpriv(dev);
+
+       napi_enable(&np->napi);
+#endif
+}
+
+static void nv_napi_disable(struct net_device *dev)
+{
+#ifdef CONFIG_FORCEDETH_NAPI
+       struct fe_priv *np = get_nvpriv(dev);
+
+       napi_disable(&np->napi);
+#endif
+}
+
 #define MII_READ       (-1)
 /* mii_rw: read/write a register on the PHY.
  *
@@ -2382,14 +2398,16 @@ static inline void nv_tx_flip_ownership(struct net_device *dev)
  *
  * Caller must own np->lock.
  */
-static void nv_tx_done(struct net_device *dev)
+static int nv_tx_done(struct net_device *dev, int limit)
 {
        struct fe_priv *np = netdev_priv(dev);
        u32 flags;
+       int tx_work = 0;
        struct ring_desc* orig_get_tx = np->get_tx.orig;
 
        while ((np->get_tx.orig != np->put_tx.orig) &&
-              !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID)) {
+              !((flags = le32_to_cpu(np->get_tx.orig->flaglen)) & NV_TX_VALID) &&
+              (tx_work < limit)) {
 
                dprintk(KERN_DEBUG "%s: nv_tx_done: flags 0x%x.\n",
                                        dev->name, flags);
@@ -2415,6 +2433,7 @@ static void nv_tx_done(struct net_device *dev)
                                }
                                dev_kfree_skb_any(np->get_tx_ctx->skb);
                                np->get_tx_ctx->skb = NULL;
+                               tx_work++;
                        }
                } else {
                        if (flags & NV_TX2_LASTPACKET) {
@@ -2432,6 +2451,7 @@ static void nv_tx_done(struct net_device *dev)
                                }
                                dev_kfree_skb_any(np->get_tx_ctx->skb);
                                np->get_tx_ctx->skb = NULL;
+                               tx_work++;
                        }
                }
                if (unlikely(np->get_tx.orig++ == np->last_tx.orig))
@@ -2443,17 +2463,19 @@ static void nv_tx_done(struct net_device *dev)
                np->tx_stop = 0;
                netif_wake_queue(dev);
        }
+       return tx_work;
 }
 
-static void nv_tx_done_optimized(struct net_device *dev, int limit)
+static int nv_tx_done_optimized(struct net_device *dev, int limit)
 {
        struct fe_priv *np = netdev_priv(dev);
        u32 flags;
+       int tx_work = 0;
        struct ring_desc_ex* orig_get_tx = np->get_tx.ex;
 
        while ((np->get_tx.ex != np->put_tx.ex) &&
               !((flags = le32_to_cpu(np->get_tx.ex->flaglen)) & NV_TX_VALID) &&
-              (limit-- > 0)) {
+              (tx_work < limit)) {
 
                dprintk(KERN_DEBUG "%s: nv_tx_done_optimized: flags 0x%x.\n",
                                        dev->name, flags);
@@ -2477,6 +2499,7 @@ static void nv_tx_done_optimized(struct net_device *dev, int limit)
 
                        dev_kfree_skb_any(np->get_tx_ctx->skb);
                        np->get_tx_ctx->skb = NULL;
+                       tx_work++;
 
                        if (np->tx_limit) {
                                nv_tx_flip_ownership(dev);
@@ -2491,6 +2514,7 @@ static void nv_tx_done_optimized(struct net_device *dev, int limit)
                np->tx_stop = 0;
                netif_wake_queue(dev);
        }
+       return tx_work;
 }
 
 /*
@@ -2563,7 +2587,7 @@ static void nv_tx_timeout(struct net_device *dev)
 
        /* 2) check that the packets were not sent already: */
        if (!nv_optimized(np))
-               nv_tx_done(dev);
+               nv_tx_done(dev, np->tx_ring_size);
        else
                nv_tx_done_optimized(dev, np->tx_ring_size);
 
@@ -2924,6 +2948,7 @@ static int nv_change_mtu(struct net_device *dev, int new_mtu)
                 * Changing the MTU is a rare event, it shouldn't matter.
                 */
                nv_disable_irq(dev);
+               nv_napi_disable(dev);
                netif_tx_lock_bh(dev);
                netif_addr_lock(dev);
                spin_lock(&np->lock);
@@ -2952,6 +2977,7 @@ static int nv_change_mtu(struct net_device *dev, int new_mtu)
                spin_unlock(&np->lock);
                netif_addr_unlock(dev);
                netif_tx_unlock_bh(dev);
+               nv_napi_enable(dev);
                nv_enable_irq(dev);
        }
        return 0;
@@ -3397,44 +3423,40 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
        struct net_device *dev = (struct net_device *) data;
        struct fe_priv *np = netdev_priv(dev);
        u8 __iomem *base = get_hwbase(dev);
-       u32 events;
        int i;
 
        dprintk(KERN_DEBUG "%s: nv_nic_irq\n", dev->name);
 
        for (i=0; ; i++) {
                if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
-                       events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
+                       np->events = readl(base + NvRegIrqStatus);
                        writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
                } else {
-                       events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
+                       np->events = readl(base + NvRegMSIXIrqStatus);
                        writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
                }
-               dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
-               if (!(events & np->irqmask))
+               dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, np->events);
+               if (!(np->events & np->irqmask))
                        break;
 
                nv_msi_workaround(np);
 
+#ifdef CONFIG_FORCEDETH_NAPI
                spin_lock(&np->lock);
-               nv_tx_done(dev);
-               spin_unlock(&np->lock);
+               napi_schedule(&np->napi);
 
-#ifdef CONFIG_FORCEDETH_NAPI
-               if (events & NVREG_IRQ_RX_ALL) {
-                       spin_lock(&np->lock);
-                       napi_schedule(&np->napi);
+               /* Disable furthur irq's
+                  (msix not enabled with napi) */
+               writel(0, base + NvRegIrqMask);
 
-                       /* Disable furthur receive irq's */
-                       np->irqmask &= ~NVREG_IRQ_RX_ALL;
+               spin_unlock(&np->lock);
 
-                       if (np->msi_flags & NV_MSI_X_ENABLED)
-                               writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
-                       else
-                               writel(np->irqmask, base + NvRegIrqMask);
-                       spin_unlock(&np->lock);
-               }
+               return IRQ_HANDLED;
 #else
+               spin_lock(&np->lock);
+               nv_tx_done(dev, np->tx_ring_size);
+               spin_unlock(&np->lock);
+
                if (nv_rx_process(dev, RX_WORK_PER_LOOP)) {
                        if (unlikely(nv_alloc_rx(dev))) {
                                spin_lock(&np->lock);
@@ -3443,8 +3465,8 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
                                spin_unlock(&np->lock);
                        }
                }
-#endif
-               if (unlikely(events & NVREG_IRQ_LINK)) {
+
+               if (unlikely(np->events & NVREG_IRQ_LINK)) {
                        spin_lock(&np->lock);
                        nv_link_irq(dev);
                        spin_unlock(&np->lock);
@@ -3455,15 +3477,7 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
                        spin_unlock(&np->lock);
                        np->link_timeout = jiffies + LINK_TIMEOUT;
                }
-               if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
-                       dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
-                                               dev->name, events);
-               }
-               if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
-                       printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
-                                               dev->name, events);
-               }
-               if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
+               if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) {
                        spin_lock(&np->lock);
                        /* disable interrupts on the nic */
                        if (!(np->msi_flags & NV_MSI_X_ENABLED))
@@ -3497,7 +3511,7 @@ static irqreturn_t nv_nic_irq(int foo, void *data)
                        printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
                        break;
                }
-
+#endif
        }
        dprintk(KERN_DEBUG "%s: nv_nic_irq completed\n", dev->name);
 
@@ -3514,44 +3528,40 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
        struct net_device *dev = (struct net_device *) data;
        struct fe_priv *np = netdev_priv(dev);
        u8 __iomem *base = get_hwbase(dev);
-       u32 events;
        int i;
 
        dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized\n", dev->name);
 
        for (i=0; ; i++) {
                if (!(np->msi_flags & NV_MSI_X_ENABLED)) {
-                       events = readl(base + NvRegIrqStatus) & NVREG_IRQSTAT_MASK;
+                       np->events = readl(base + NvRegIrqStatus);
                        writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus);
                } else {
-                       events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQSTAT_MASK;
+                       np->events = readl(base + NvRegMSIXIrqStatus);
                        writel(NVREG_IRQSTAT_MASK, base + NvRegMSIXIrqStatus);
                }
-               dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, events);
-               if (!(events & np->irqmask))
+               dprintk(KERN_DEBUG "%s: irq: %08x\n", dev->name, np->events);
+               if (!(np->events & np->irqmask))
                        break;
 
                nv_msi_workaround(np);
 
+#ifdef CONFIG_FORCEDETH_NAPI
                spin_lock(&np->lock);
-               nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
-               spin_unlock(&np->lock);
+               napi_schedule(&np->napi);
 
-#ifdef CONFIG_FORCEDETH_NAPI
-               if (events & NVREG_IRQ_RX_ALL) {
-                       spin_lock(&np->lock);
-                       napi_schedule(&np->napi);
+               /* Disable furthur irq's
+                  (msix not enabled with napi) */
+               writel(0, base + NvRegIrqMask);
 
-                       /* Disable furthur receive irq's */
-                       np->irqmask &= ~NVREG_IRQ_RX_ALL;
+               spin_unlock(&np->lock);
 
-                       if (np->msi_flags & NV_MSI_X_ENABLED)
-                               writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
-                       else
-                               writel(np->irqmask, base + NvRegIrqMask);
-                       spin_unlock(&np->lock);
-               }
+               return IRQ_HANDLED;
 #else
+               spin_lock(&np->lock);
+               nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
+               spin_unlock(&np->lock);
+
                if (nv_rx_process_optimized(dev, RX_WORK_PER_LOOP)) {
                        if (unlikely(nv_alloc_rx_optimized(dev))) {
                                spin_lock(&np->lock);
@@ -3560,8 +3570,8 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
                                spin_unlock(&np->lock);
                        }
                }
-#endif
-               if (unlikely(events & NVREG_IRQ_LINK)) {
+
+               if (unlikely(np->events & NVREG_IRQ_LINK)) {
                        spin_lock(&np->lock);
                        nv_link_irq(dev);
                        spin_unlock(&np->lock);
@@ -3572,15 +3582,7 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
                        spin_unlock(&np->lock);
                        np->link_timeout = jiffies + LINK_TIMEOUT;
                }
-               if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
-                       dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
-                                               dev->name, events);
-               }
-               if (unlikely(events & (NVREG_IRQ_UNKNOWN))) {
-                       printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
-                                               dev->name, events);
-               }
-               if (unlikely(events & NVREG_IRQ_RECOVER_ERROR)) {
+               if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) {
                        spin_lock(&np->lock);
                        /* disable interrupts on the nic */
                        if (!(np->msi_flags & NV_MSI_X_ENABLED))
@@ -3615,7 +3617,7 @@ static irqreturn_t nv_nic_irq_optimized(int foo, void *data)
                        printk(KERN_DEBUG "%s: too many iterations (%d) in nv_nic_irq.\n", dev->name, i);
                        break;
                }
-
+#endif
        }
        dprintk(KERN_DEBUG "%s: nv_nic_irq_optimized completed\n", dev->name);
 
@@ -3644,10 +3646,6 @@ static irqreturn_t nv_nic_irq_tx(int foo, void *data)
                nv_tx_done_optimized(dev, TX_WORK_PER_LOOP);
                spin_unlock_irqrestore(&np->lock, flags);
 
-               if (unlikely(events & (NVREG_IRQ_TX_ERR))) {
-                       dprintk(KERN_DEBUG "%s: received irq with events 0x%x. Probably TX fail.\n",
-                                               dev->name, events);
-               }
                if (unlikely(i > max_interrupt_work)) {
                        spin_lock_irqsave(&np->lock, flags);
                        /* disable interrupts on the nic */
@@ -3679,9 +3677,17 @@ static int nv_napi_poll(struct napi_struct *napi, int budget)
        int pkts, retcode;
 
        if (!nv_optimized(np)) {
+               spin_lock_irqsave(&np->lock, flags);
+               nv_tx_done(dev, np->tx_ring_size);
+               spin_unlock_irqrestore(&np->lock, flags);
+
                pkts = nv_rx_process(dev, budget);
                retcode = nv_alloc_rx(dev);
        } else {
+               spin_lock_irqsave(&np->lock, flags);
+               nv_tx_done_optimized(dev, np->tx_ring_size);
+               spin_unlock_irqrestore(&np->lock, flags);
+
                pkts = nv_rx_process_optimized(dev, budget);
                retcode = nv_alloc_rx_optimized(dev);
        }
@@ -3693,17 +3699,37 @@ static int nv_napi_poll(struct napi_struct *napi, int budget)
                spin_unlock_irqrestore(&np->lock, flags);
        }
 
+       if (unlikely(np->events & NVREG_IRQ_LINK)) {
+               spin_lock_irqsave(&np->lock, flags);
+               nv_link_irq(dev);
+               spin_unlock_irqrestore(&np->lock, flags);
+       }
+       if (unlikely(np->need_linktimer && time_after(jiffies, np->link_timeout))) {
+               spin_lock_irqsave(&np->lock, flags);
+               nv_linkchange(dev);
+               spin_unlock_irqrestore(&np->lock, flags);
+               np->link_timeout = jiffies + LINK_TIMEOUT;
+       }
+       if (unlikely(np->events & NVREG_IRQ_RECOVER_ERROR)) {
+               spin_lock_irqsave(&np->lock, flags);
+               if (!np->in_shutdown) {
+                       np->nic_poll_irq = np->irqmask;
+                       np->recover_error = 1;
+                       mod_timer(&np->nic_poll, jiffies + POLL_WAIT);
+               }
+               spin_unlock_irqrestore(&np->lock, flags);
+               __napi_complete(napi);
+               return pkts;
+       }
+
        if (pkts < budget) {
-               /* re-enable receive interrupts */
+               /* re-enable interrupts
+                  (msix not enabled in napi) */
                spin_lock_irqsave(&np->lock, flags);
 
                __napi_complete(napi);
 
-               np->irqmask |= NVREG_IRQ_RX_ALL;
-               if (np->msi_flags & NV_MSI_X_ENABLED)
-                       writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
-               else
-                       writel(np->irqmask, base + NvRegIrqMask);
+               writel(np->irqmask, base + NvRegIrqMask);
 
                spin_unlock_irqrestore(&np->lock, flags);
        }
@@ -3711,26 +3737,6 @@ static int nv_napi_poll(struct napi_struct *napi, int budget)
 }
 #endif
 
-#ifdef CONFIG_FORCEDETH_NAPI
-static irqreturn_t nv_nic_irq_rx(int foo, void *data)
-{
-       struct net_device *dev = (struct net_device *) data;
-       struct fe_priv *np = netdev_priv(dev);
-       u8 __iomem *base = get_hwbase(dev);
-       u32 events;
-
-       events = readl(base + NvRegMSIXIrqStatus) & NVREG_IRQ_RX_ALL;
-
-       if (events) {
-               /* disable receive interrupts on the nic */
-               writel(NVREG_IRQ_RX_ALL, base + NvRegIrqMask);
-               pci_push(base);
-               writel(NVREG_IRQ_RX_ALL, base + NvRegMSIXIrqStatus);
-               napi_schedule(&np->napi);
-       }
-       return IRQ_HANDLED;
-}
-#else
 static irqreturn_t nv_nic_irq_rx(int foo, void *data)
 {
        struct net_device *dev = (struct net_device *) data;
@@ -3777,7 +3783,6 @@ static irqreturn_t nv_nic_irq_rx(int foo, void *data)
 
        return IRQ_RETVAL(i);
 }
-#endif
 
 static irqreturn_t nv_nic_irq_other(int foo, void *data)
 {
@@ -3827,10 +3832,6 @@ static irqreturn_t nv_nic_irq_other(int foo, void *data)
                        spin_unlock_irq(&np->lock);
                        break;
                }
-               if (events & (NVREG_IRQ_UNKNOWN)) {
-                       printk(KERN_DEBUG "%s: received irq with unknown events 0x%x. Please report\n",
-                                               dev->name, events);
-               }
                if (unlikely(i > max_interrupt_work)) {
                        spin_lock_irqsave(&np->lock, flags);
                        /* disable interrupts on the nic */
@@ -4592,6 +4593,7 @@ static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ri
 
        if (netif_running(dev)) {
                nv_disable_irq(dev);
+               nv_napi_disable(dev);
                netif_tx_lock_bh(dev);
                netif_addr_lock(dev);
                spin_lock(&np->lock);
@@ -4644,6 +4646,7 @@ static int nv_set_ringparam(struct net_device *dev, struct ethtool_ringparam* ri
                spin_unlock(&np->lock);
                netif_addr_unlock(dev);
                netif_tx_unlock_bh(dev);
+               nv_napi_enable(dev);
                nv_enable_irq(dev);
        }
        return 0;
@@ -4796,12 +4799,12 @@ static int nv_get_sset_count(struct net_device *dev, int sset)
                else
                        return NV_TEST_COUNT_BASE;
        case ETH_SS_STATS:
-               if (np->driver_data & DEV_HAS_STATISTICS_V1)
-                       return NV_DEV_STATISTICS_V1_COUNT;
+               if (np->driver_data & DEV_HAS_STATISTICS_V3)
+                       return NV_DEV_STATISTICS_V3_COUNT;
                else if (np->driver_data & DEV_HAS_STATISTICS_V2)
                        return NV_DEV_STATISTICS_V2_COUNT;
-               else if (np->driver_data & DEV_HAS_STATISTICS_V3)
-                       return NV_DEV_STATISTICS_V3_COUNT;
+               else if (np->driver_data & DEV_HAS_STATISTICS_V1)
+                       return NV_DEV_STATISTICS_V1_COUNT;
                else
                        return 0;
        default:
@@ -5070,9 +5073,7 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
        if (test->flags & ETH_TEST_FL_OFFLINE) {
                if (netif_running(dev)) {
                        netif_stop_queue(dev);
-#ifdef CONFIG_FORCEDETH_NAPI
-                       napi_disable(&np->napi);
-#endif
+                       nv_napi_disable(dev);
                        netif_tx_lock_bh(dev);
                        netif_addr_lock(dev);
                        spin_lock_irq(&np->lock);
@@ -5130,9 +5131,7 @@ static void nv_self_test(struct net_device *dev, struct ethtool_test *test, u64
                        /* restart rx engine */
                        nv_start_rxtx(dev);
                        netif_start_queue(dev);
-#ifdef CONFIG_FORCEDETH_NAPI
-                       napi_enable(&np->napi);
-#endif
+                       nv_napi_enable(dev);
                        nv_enable_hw_interrupts(dev, np->irqmask);
                }
        }
@@ -5424,9 +5423,7 @@ static int nv_open(struct net_device *dev)
        ret = nv_update_linkspeed(dev);
        nv_start_rxtx(dev);
        netif_start_queue(dev);
-#ifdef CONFIG_FORCEDETH_NAPI
-       napi_enable(&np->napi);
-#endif
+       nv_napi_enable(dev);
 
        if (ret) {
                netif_carrier_on(dev);
@@ -5458,9 +5455,7 @@ static int nv_close(struct net_device *dev)
        spin_lock_irq(&np->lock);
        np->in_shutdown = 1;
        spin_unlock_irq(&np->lock);
-#ifdef CONFIG_FORCEDETH_NAPI
-       napi_disable(&np->napi);
-#endif
+       nv_napi_disable(dev);
        synchronize_irq(np->pci_dev->irq);
 
        del_timer_sync(&np->oom_kick);
@@ -5651,14 +5646,6 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
                dev->features |= NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_TX;
        }
 
-       np->msi_flags = 0;
-       if ((id->driver_data & DEV_HAS_MSI) && msi) {
-               np->msi_flags |= NV_MSI_CAPABLE;
-       }
-       if ((id->driver_data & DEV_HAS_MSI_X) && msix) {
-               np->msi_flags |= NV_MSI_X_CAPABLE;
-       }
-
        np->pause_flags = NV_PAUSEFRAME_RX_CAPABLE | NV_PAUSEFRAME_RX_REQ | NV_PAUSEFRAME_AUTONEG;
        if ((id->driver_data & DEV_HAS_PAUSEFRAME_TX_V1) ||
            (id->driver_data & DEV_HAS_PAUSEFRAME_TX_V2) ||
@@ -5803,14 +5790,35 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
        } else {
                np->tx_flags = NV_TX2_VALID;
        }
-       if (optimization_mode == NV_OPTIMIZATION_MODE_THROUGHPUT) {
-               np->irqmask = NVREG_IRQMASK_THROUGHPUT;
-               if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
-                       np->msi_flags |= 0x0003;
-       } else {
+
+       np->msi_flags = 0;
+       if ((id->driver_data & DEV_HAS_MSI) && msi) {
+               np->msi_flags |= NV_MSI_CAPABLE;
+       }
+       if ((id->driver_data & DEV_HAS_MSI_X) && msix) {
+               /* msix has had reported issues when modifying irqmask
+                  as in the case of napi, therefore, disable for now
+               */
+#ifndef CONFIG_FORCEDETH_NAPI
+               np->msi_flags |= NV_MSI_X_CAPABLE;
+#endif
+       }
+
+       if (optimization_mode == NV_OPTIMIZATION_MODE_CPU) {
                np->irqmask = NVREG_IRQMASK_CPU;
                if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
                        np->msi_flags |= 0x0001;
+       } else if (optimization_mode == NV_OPTIMIZATION_MODE_DYNAMIC &&
+                  !(id->driver_data & DEV_NEED_TIMERIRQ)) {
+               /* start off in throughput mode */
+               np->irqmask = NVREG_IRQMASK_THROUGHPUT;
+               /* remove support for msix mode */
+               np->msi_flags &= ~NV_MSI_X_CAPABLE;
+       } else {
+               optimization_mode = NV_OPTIMIZATION_MODE_THROUGHPUT;
+               np->irqmask = NVREG_IRQMASK_THROUGHPUT;
+               if (np->msi_flags & NV_MSI_X_CAPABLE) /* set number of vectors */
+                       np->msi_flags |= 0x0003;
        }
 
        if (id->driver_data & DEV_NEED_TIMERIRQ)
@@ -6167,19 +6175,19 @@ static struct pci_device_id pci_tbl[] = {
        },
        {       /* MCP04 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_10),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
        },
        {       /* MCP04 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_11),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_STATISTICS_V1|DEV_NEED_TX_LIMIT,
        },
        {       /* MCP51 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_12),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
        },
        {       /* MCP51 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_13),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_STATISTICS_V1,
        },
        {       /* MCP55 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_14),
@@ -6191,83 +6199,83 @@ static struct pci_device_id pci_tbl[] = {
        },
        {       /* MCP61 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_16),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
        },
        {       /* MCP61 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_17),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
        },
        {       /* MCP61 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_18),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
        },
        {       /* MCP61 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_19),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR,
        },
        {       /* MCP65 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_20),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP65 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_21),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP65 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_22),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP65 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_23),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP67 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_24),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP67 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_25),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP67 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_26),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP67 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_27),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP73 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_28),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP73 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_29),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP73 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_30),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP73 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_31),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_HIGH_DMA|DEV_HAS_POWER_CNTRL|DEV_HAS_MSI|DEV_HAS_PAUSEFRAME_TX_V1|DEV_HAS_STATISTICS_V2|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP77 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_32),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP77 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_33),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP77 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_34),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP77 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_35),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V2|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_MGMT_UNIT|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP79 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_36),
@@ -6275,15 +6283,15 @@ static struct pci_device_id pci_tbl[] = {
        },
        {       /* MCP79 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_37),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP79 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_38),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {       /* MCP79 Ethernet Controller */
                PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NVENET_39),
-               .driver_data = DEV_NEED_TIMERIRQ|DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
+               .driver_data = DEV_NEED_LINKTIMER|DEV_HAS_LARGEDESC|DEV_HAS_CHECKSUM|DEV_HAS_HIGH_DMA|DEV_HAS_MSI|DEV_HAS_POWER_CNTRL|DEV_HAS_PAUSEFRAME_TX_V3|DEV_HAS_STATISTICS_V3|DEV_HAS_TEST_EXTENDED|DEV_HAS_CORRECT_MACADDR|DEV_HAS_COLLISION_FIX|DEV_NEED_TX_LIMIT|DEV_HAS_GEAR_MODE,
        },
        {0,},
 };
@@ -6311,7 +6319,7 @@ static void __exit exit_nic(void)
 module_param(max_interrupt_work, int, 0);
 MODULE_PARM_DESC(max_interrupt_work, "forcedeth maximum events handled per interrupt");
 module_param(optimization_mode, int, 0);
-MODULE_PARM_DESC(optimization_mode, "In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer.");
+MODULE_PARM_DESC(optimization_mode, "In throughput mode (0), every tx & rx packet will generate an interrupt. In CPU mode (1), interrupts are controlled by a timer. In dynamic mode (2), the mode toggles between throughput and CPU mode based on network load.");
 module_param(poll_interval, int, 0);
 MODULE_PARM_DESC(poll_interval, "Interval determines how frequent timer interrupt is generated by [(time_in_micro_secs * 100) / (2^10)]. Min is 0 and Max is 65535.");
 module_param(msi, int, 0);