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authorIngo Molnar <mingo@elte.hu>2008-10-28 16:26:12 +0100
committerIngo Molnar <mingo@elte.hu>2008-10-28 16:26:12 +0100
commit7a9787e1eba95a166265e6a260cf30af04ef0a99 (patch)
treee730a4565e0318140d2fbd2f0415d18a339d7336 /drivers/net/e1000e/netdev.c
parent41b9eb264c8407655db57b60b4457fe1b2ec9977 (diff)
parent0173a3265b228da319ceb9c1ec6a5682fd1b2d92 (diff)
Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirks
Diffstat (limited to 'drivers/net/e1000e/netdev.c')
-rw-r--r--drivers/net/e1000e/netdev.c987
1 files changed, 758 insertions, 229 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 648a87bbf46..abd492b7336 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -47,7 +47,7 @@
#include "e1000.h"
-#define DRV_VERSION "0.3.3.3-k2"
+#define DRV_VERSION "0.3.3.3-k6"
char e1000e_driver_name[] = "e1000e";
const char e1000e_driver_version[] = DRV_VERSION;
@@ -55,9 +55,11 @@ static const struct e1000_info *e1000_info_tbl[] = {
[board_82571] = &e1000_82571_info,
[board_82572] = &e1000_82572_info,
[board_82573] = &e1000_82573_info,
+ [board_82574] = &e1000_82574_info,
[board_80003es2lan] = &e1000_es2_info,
[board_ich8lan] = &e1000_ich8_info,
[board_ich9lan] = &e1000_ich9_info,
+ [board_ich10lan] = &e1000_ich10_info,
};
#ifdef DEBUG
@@ -98,8 +100,7 @@ static void e1000_receive_skb(struct e1000_adapter *adapter,
if (adapter->vlgrp && (status & E1000_RXD_STAT_VP))
vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
- le16_to_cpu(vlan) &
- E1000_RXD_SPC_VLAN_MASK);
+ le16_to_cpu(vlan));
else
netif_receive_skb(skb);
@@ -196,7 +197,7 @@ map_skb:
buffer_info->dma = pci_map_single(pdev, skb->data,
adapter->rx_buffer_len,
PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(buffer_info->dma)) {
+ if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
dev_err(&pdev->dev, "RX DMA map failed\n");
adapter->rx_dma_failed++;
break;
@@ -266,7 +267,7 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
ps_page->page,
0, PAGE_SIZE,
PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(ps_page->dma)) {
+ if (pci_dma_mapping_error(pdev, ps_page->dma)) {
dev_err(&adapter->pdev->dev,
"RX DMA page map failed\n");
adapter->rx_dma_failed++;
@@ -301,7 +302,7 @@ static void e1000_alloc_rx_buffers_ps(struct e1000_adapter *adapter,
buffer_info->dma = pci_map_single(pdev, skb->data,
adapter->rx_ps_bsize0,
PCI_DMA_FROMDEVICE);
- if (pci_dma_mapping_error(buffer_info->dma)) {
+ if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
dev_err(&pdev->dev, "RX DMA map failed\n");
adapter->rx_dma_failed++;
/* cleanup skb */
@@ -485,8 +486,8 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
* packet, also make sure the frame isn't just CRC only */
if (!(status & E1000_RXD_STAT_EOP) || (length <= 4)) {
/* All receives must fit into a single buffer */
- ndev_dbg(netdev, "%s: Receive packet consumed "
- "multiple buffers\n", netdev->name);
+ e_dbg("%s: Receive packet consumed multiple buffers\n",
+ netdev->name);
/* recycle */
buffer_info->skb = skb;
goto next_desc;
@@ -511,9 +512,12 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter,
netdev_alloc_skb(netdev, length + NET_IP_ALIGN);
if (new_skb) {
skb_reserve(new_skb, NET_IP_ALIGN);
- memcpy(new_skb->data - NET_IP_ALIGN,
- skb->data - NET_IP_ALIGN,
- length + NET_IP_ALIGN);
+ skb_copy_to_linear_data_offset(new_skb,
+ -NET_IP_ALIGN,
+ (skb->data -
+ NET_IP_ALIGN),
+ (length +
+ NET_IP_ALIGN));
/* save the skb in buffer_info as good */
buffer_info->skb = skb;
skb = new_skb;
@@ -577,28 +581,26 @@ static void e1000_print_tx_hang(struct e1000_adapter *adapter)
unsigned int i = tx_ring->next_to_clean;
unsigned int eop = tx_ring->buffer_info[i].next_to_watch;
struct e1000_tx_desc *eop_desc = E1000_TX_DESC(*tx_ring, eop);
- struct net_device *netdev = adapter->netdev;
/* detected Tx unit hang */
- ndev_err(netdev,
- "Detected Tx Unit Hang:\n"
- " TDH <%x>\n"
- " TDT <%x>\n"
- " next_to_use <%x>\n"
- " next_to_clean <%x>\n"
- "buffer_info[next_to_clean]:\n"
- " time_stamp <%lx>\n"
- " next_to_watch <%x>\n"
- " jiffies <%lx>\n"
- " next_to_watch.status <%x>\n",
- readl(adapter->hw.hw_addr + tx_ring->head),
- readl(adapter->hw.hw_addr + tx_ring->tail),
- tx_ring->next_to_use,
- tx_ring->next_to_clean,
- tx_ring->buffer_info[eop].time_stamp,
- eop,
- jiffies,
- eop_desc->upper.fields.status);
+ e_err("Detected Tx Unit Hang:\n"
+ " TDH <%x>\n"
+ " TDT <%x>\n"
+ " next_to_use <%x>\n"
+ " next_to_clean <%x>\n"
+ "buffer_info[next_to_clean]:\n"
+ " time_stamp <%lx>\n"
+ " next_to_watch <%x>\n"
+ " jiffies <%lx>\n"
+ " next_to_watch.status <%x>\n",
+ readl(adapter->hw.hw_addr + tx_ring->head),
+ readl(adapter->hw.hw_addr + tx_ring->tail),
+ tx_ring->next_to_use,
+ tx_ring->next_to_clean,
+ tx_ring->buffer_info[eop].time_stamp,
+ eop,
+ jiffies,
+ eop_desc->upper.fields.status);
}
/**
@@ -748,8 +750,8 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
buffer_info->dma = 0;
if (!(staterr & E1000_RXD_STAT_EOP)) {
- ndev_dbg(netdev, "%s: Packet Split buffers didn't pick "
- "up the full packet\n", netdev->name);
+ e_dbg("%s: Packet Split buffers didn't pick up the "
+ "full packet\n", netdev->name);
dev_kfree_skb_irq(skb);
goto next_desc;
}
@@ -762,8 +764,8 @@ static bool e1000_clean_rx_irq_ps(struct e1000_adapter *adapter,
length = le16_to_cpu(rx_desc->wb.middle.length0);
if (!length) {
- ndev_dbg(netdev, "%s: Last part of the packet spanning"
- " multiple descriptors\n", netdev->name);
+ e_dbg("%s: Last part of the packet spanning multiple "
+ "descriptors\n", netdev->name);
dev_kfree_skb_irq(skb);
goto next_desc;
}
@@ -1012,7 +1014,7 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
/* eth type trans needs skb->data to point to something */
if (!pskb_may_pull(skb, ETH_HLEN)) {
- ndev_err(netdev, "pskb_may_pull failed.\n");
+ e_err("pskb_may_pull failed.\n");
dev_kfree_skb(skb);
goto next_desc;
}
@@ -1115,6 +1117,14 @@ static void e1000_clean_rx_ring(struct e1000_adapter *adapter)
writel(0, adapter->hw.hw_addr + rx_ring->tail);
}
+static void e1000e_downshift_workaround(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter, downshift_task);
+
+ e1000e_gig_downshift_workaround_ich8lan(&adapter->hw);
+}
+
/**
* e1000_intr_msi - Interrupt Handler
* @irq: interrupt number
@@ -1139,7 +1149,7 @@ static irqreturn_t e1000_intr_msi(int irq, void *data)
*/
if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
(!(er32(STATUS) & E1000_STATUS_LU)))
- e1000e_gig_downshift_workaround_ich8lan(hw);
+ schedule_work(&adapter->downshift_task);
/*
* 80003ES2LAN workaround-- For packet buffer work-around on
@@ -1179,8 +1189,8 @@ static irqreturn_t e1000_intr(int irq, void *data)
struct net_device *netdev = data;
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
-
u32 rctl, icr = er32(ICR);
+
if (!icr)
return IRQ_NONE; /* Not our interrupt */
@@ -1205,7 +1215,7 @@ static irqreturn_t e1000_intr(int irq, void *data)
*/
if ((adapter->flags & FLAG_LSC_GIG_SPEED_DROP) &&
(!(er32(STATUS) & E1000_STATUS_LU)))
- e1000e_gig_downshift_workaround_ich8lan(hw);
+ schedule_work(&adapter->downshift_task);
/*
* 80003ES2LAN workaround--
@@ -1236,30 +1246,299 @@ static irqreturn_t e1000_intr(int irq, void *data)
return IRQ_HANDLED;
}
+static irqreturn_t e1000_msix_other(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 icr = er32(ICR);
+
+ if (!(icr & E1000_ICR_INT_ASSERTED)) {
+ ew32(IMS, E1000_IMS_OTHER);
+ return IRQ_NONE;
+ }
+
+ if (icr & adapter->eiac_mask)
+ ew32(ICS, (icr & adapter->eiac_mask));
+
+ if (icr & E1000_ICR_OTHER) {
+ if (!(icr & E1000_ICR_LSC))
+ goto no_link_interrupt;
+ hw->mac.get_link_status = 1;
+ /* guard against interrupt when we're going down */
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+ }
+
+no_link_interrupt:
+ ew32(IMS, E1000_IMS_LSC | E1000_IMS_OTHER);
+
+ return IRQ_HANDLED;
+}
+
+
+static irqreturn_t e1000_intr_msix_tx(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+
+
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+
+ if (!e1000_clean_tx_irq(adapter))
+ /* Ring was not completely cleaned, so fire another interrupt */
+ ew32(ICS, tx_ring->ims_val);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t e1000_intr_msix_rx(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+
+ /* Write the ITR value calculated at the end of the
+ * previous interrupt.
+ */
+ if (adapter->rx_ring->set_itr) {
+ writel(1000000000 / (adapter->rx_ring->itr_val * 256),
+ adapter->hw.hw_addr + adapter->rx_ring->itr_register);
+ adapter->rx_ring->set_itr = 0;
+ }
+
+ if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __netif_rx_schedule(netdev, &adapter->napi);
+ }
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_configure_msix - Configure MSI-X hardware
+ *
+ * e1000_configure_msix sets up the hardware to properly
+ * generate MSI-X interrupts.
+ **/
+static void e1000_configure_msix(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+ struct e1000_ring *tx_ring = adapter->tx_ring;
+ int vector = 0;
+ u32 ctrl_ext, ivar = 0;
+
+ adapter->eiac_mask = 0;
+
+ /* Workaround issue with spurious interrupts on 82574 in MSI-X mode */
+ if (hw->mac.type == e1000_82574) {
+ u32 rfctl = er32(RFCTL);
+ rfctl |= E1000_RFCTL_ACK_DIS;
+ ew32(RFCTL, rfctl);
+ }
+
+#define E1000_IVAR_INT_ALLOC_VALID 0x8
+ /* Configure Rx vector */
+ rx_ring->ims_val = E1000_IMS_RXQ0;
+ adapter->eiac_mask |= rx_ring->ims_val;
+ if (rx_ring->itr_val)
+ writel(1000000000 / (rx_ring->itr_val * 256),
+ hw->hw_addr + rx_ring->itr_register);
+ else
+ writel(1, hw->hw_addr + rx_ring->itr_register);
+ ivar = E1000_IVAR_INT_ALLOC_VALID | vector;
+
+ /* Configure Tx vector */
+ tx_ring->ims_val = E1000_IMS_TXQ0;
+ vector++;
+ if (tx_ring->itr_val)
+ writel(1000000000 / (tx_ring->itr_val * 256),
+ hw->hw_addr + tx_ring->itr_register);
+ else
+ writel(1, hw->hw_addr + tx_ring->itr_register);
+ adapter->eiac_mask |= tx_ring->ims_val;
+ ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 8);
+
+ /* set vector for Other Causes, e.g. link changes */
+ vector++;
+ ivar |= ((E1000_IVAR_INT_ALLOC_VALID | vector) << 16);
+ if (rx_ring->itr_val)
+ writel(1000000000 / (rx_ring->itr_val * 256),
+ hw->hw_addr + E1000_EITR_82574(vector));
+ else
+ writel(1, hw->hw_addr + E1000_EITR_82574(vector));
+
+ /* Cause Tx interrupts on every write back */
+ ivar |= (1 << 31);
+
+ ew32(IVAR, ivar);
+
+ /* enable MSI-X PBA support */
+ ctrl_ext = er32(CTRL_EXT);
+ ctrl_ext |= E1000_CTRL_EXT_PBA_CLR;
+
+ /* Auto-Mask Other interrupts upon ICR read */
+#define E1000_EIAC_MASK_82574 0x01F00000
+ ew32(IAM, ~E1000_EIAC_MASK_82574 | E1000_IMS_OTHER);
+ ctrl_ext |= E1000_CTRL_EXT_EIAME;
+ ew32(CTRL_EXT, ctrl_ext);
+ e1e_flush();
+}
+
+void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter)
+{
+ if (adapter->msix_entries) {
+ pci_disable_msix(adapter->pdev);
+ kfree(adapter->msix_entries);
+ adapter->msix_entries = NULL;
+ } else if (adapter->flags & FLAG_MSI_ENABLED) {
+ pci_disable_msi(adapter->pdev);
+ adapter->flags &= ~FLAG_MSI_ENABLED;
+ }
+
+ return;
+}
+
+/**
+ * e1000e_set_interrupt_capability - set MSI or MSI-X if supported
+ *
+ * Attempt to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+void e1000e_set_interrupt_capability(struct e1000_adapter *adapter)
+{
+ int err;
+ int numvecs, i;
+
+
+ switch (adapter->int_mode) {
+ case E1000E_INT_MODE_MSIX:
+ if (adapter->flags & FLAG_HAS_MSIX) {
+ numvecs = 3; /* RxQ0, TxQ0 and other */
+ adapter->msix_entries = kcalloc(numvecs,
+ sizeof(struct msix_entry),
+ GFP_KERNEL);
+ if (adapter->msix_entries) {
+ for (i = 0; i < numvecs; i++)
+ adapter->msix_entries[i].entry = i;
+
+ err = pci_enable_msix(adapter->pdev,
+ adapter->msix_entries,
+ numvecs);
+ if (err == 0)
+ return;
+ }
+ /* MSI-X failed, so fall through and try MSI */
+ e_err("Failed to initialize MSI-X interrupts. "
+ "Falling back to MSI interrupts.\n");
+ e1000e_reset_interrupt_capability(adapter);
+ }
+ adapter->int_mode = E1000E_INT_MODE_MSI;
+ /* Fall through */
+ case E1000E_INT_MODE_MSI:
+ if (!pci_enable_msi(adapter->pdev)) {
+ adapter->flags |= FLAG_MSI_ENABLED;
+ } else {
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ e_err("Failed to initialize MSI interrupts. Falling "
+ "back to legacy interrupts.\n");
+ }
+ /* Fall through */
+ case E1000E_INT_MODE_LEGACY:
+ /* Don't do anything; this is the system default */
+ break;
+ }
+
+ return;
+}
+
+/**
+ * e1000_request_msix - Initialize MSI-X interrupts
+ *
+ * e1000_request_msix allocates MSI-X vectors and requests interrupts from the
+ * kernel.
+ **/
+static int e1000_request_msix(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err = 0, vector = 0;
+
+ if (strlen(netdev->name) < (IFNAMSIZ - 5))
+ sprintf(adapter->rx_ring->name, "%s-rx0", netdev->name);
+ else
+ memcpy(adapter->rx_ring->name, netdev->name, IFNAMSIZ);
+ err = request_irq(adapter->msix_entries[vector].vector,
+ &e1000_intr_msix_rx, 0, adapter->rx_ring->name,
+ netdev);
+ if (err)
+ goto out;
+ adapter->rx_ring->itr_register = E1000_EITR_82574(vector);
+ adapter->rx_ring->itr_val = adapter->itr;
+ vector++;
+
+ if (strlen(netdev->name) < (IFNAMSIZ - 5))
+ sprintf(adapter->tx_ring->name, "%s-tx0", netdev->name);
+ else
+ memcpy(adapter->tx_ring->name, netdev->name, IFNAMSIZ);
+ err = request_irq(adapter->msix_entries[vector].vector,
+ &e1000_intr_msix_tx, 0, adapter->tx_ring->name,
+ netdev);
+ if (err)
+ goto out;
+ adapter->tx_ring->itr_register = E1000_EITR_82574(vector);
+ adapter->tx_ring->itr_val = adapter->itr;
+ vector++;
+
+ err = request_irq(adapter->msix_entries[vector].vector,
+ &e1000_msix_other, 0, netdev->name, netdev);
+ if (err)
+ goto out;
+
+ e1000_configure_msix(adapter);
+ return 0;
+out:
+ return err;
+}
+
+/**
+ * e1000_request_irq - initialize interrupts
+ *
+ * Attempts to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
static int e1000_request_irq(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- irq_handler_t handler = e1000_intr;
- int irq_flags = IRQF_SHARED;
int err;
- if (!pci_enable_msi(adapter->pdev)) {
- adapter->flags |= FLAG_MSI_ENABLED;
- handler = e1000_intr_msi;
- irq_flags = 0;
+ if (adapter->msix_entries) {
+ err = e1000_request_msix(adapter);
+ if (!err)
+ return err;
+ /* fall back to MSI */
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = E1000E_INT_MODE_MSI;
+ e1000e_set_interrupt_capability(adapter);
}
+ if (adapter->flags & FLAG_MSI_ENABLED) {
+ err = request_irq(adapter->pdev->irq, &e1000_intr_msi, 0,
+ netdev->name, netdev);
+ if (!err)
+ return err;
- err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
- netdev);
- if (err) {
- ndev_err(netdev,
- "Unable to allocate %s interrupt (return: %d)\n",
- adapter->flags & FLAG_MSI_ENABLED ? "MSI":"INTx",
- err);
- if (adapter->flags & FLAG_MSI_ENABLED)
- pci_disable_msi(adapter->pdev);
+ /* fall back to legacy interrupt */
+ e1000e_reset_interrupt_capability(adapter);
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
}
+ err = request_irq(adapter->pdev->irq, &e1000_intr, IRQF_SHARED,
+ netdev->name, netdev);
+ if (err)
+ e_err("Unable to allocate interrupt, Error: %d\n", err);
+
return err;
}
@@ -1267,11 +1546,21 @@ static void e1000_free_irq(struct e1000_adapter *adapter)
{
struct net_device *netdev = adapter->netdev;
- free_irq(adapter->pdev->irq, netdev);
- if (adapter->flags & FLAG_MSI_ENABLED) {
- pci_disable_msi(adapter->pdev);
- adapter->flags &= ~FLAG_MSI_ENABLED;
+ if (adapter->msix_entries) {
+ int vector = 0;
+
+ free_irq(adapter->msix_entries[vector].vector, netdev);
+ vector++;
+
+ free_irq(adapter->msix_entries[vector].vector, netdev);
+ vector++;
+
+ /* Other Causes interrupt vector */
+ free_irq(adapter->msix_entries[vector].vector, netdev);
+ return;
}
+
+ free_irq(adapter->pdev->irq, netdev);
}
/**
@@ -1282,6 +1571,8 @@ static void e1000_irq_disable(struct e1000_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
ew32(IMC, ~0);
+ if (adapter->msix_entries)
+ ew32(EIAC_82574, 0);
e1e_flush();
synchronize_irq(adapter->pdev->irq);
}
@@ -1293,7 +1584,12 @@ static void e1000_irq_enable(struct e1000_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
- ew32(IMS, IMS_ENABLE_MASK);
+ if (adapter->msix_entries) {
+ ew32(EIAC_82574, adapter->eiac_mask & E1000_EIAC_MASK_82574);
+ ew32(IMS, adapter->eiac_mask | E1000_IMS_OTHER | E1000_IMS_LSC);
+ } else {
+ ew32(IMS, IMS_ENABLE_MASK);
+ }
e1e_flush();
}
@@ -1396,8 +1692,7 @@ int e1000e_setup_tx_resources(struct e1000_adapter *adapter)
return 0;
err:
vfree(tx_ring->buffer_info);
- ndev_err(adapter->netdev,
- "Unable to allocate memory for the transmit descriptor ring\n");
+ e_err("Unable to allocate memory for the transmit descriptor ring\n");
return err;
}
@@ -1451,8 +1746,7 @@ err_pages:
}
err:
vfree(rx_ring->buffer_info);
- ndev_err(adapter->netdev,
- "Unable to allocate memory for the transmit descriptor ring\n");
+ e_err("Unable to allocate memory for the transmit descriptor ring\n");
return err;
}
@@ -1545,9 +1839,8 @@ void e1000e_free_rx_resources(struct e1000_adapter *adapter)
* traffic pattern. Constants in this function were computed
* based on theoretical maximum wire speed and thresholds were set based
* on testing data as well as attempting to minimize response time
- * while increasing bulk throughput.
- * this functionality is controlled by the InterruptThrottleRate module
- * parameter (see e1000_param.c)
+ * while increasing bulk throughput. This functionality is controlled
+ * by the InterruptThrottleRate module parameter.
**/
static unsigned int e1000_update_itr(struct e1000_adapter *adapter,
u16 itr_setting, int packets,
@@ -1655,11 +1948,37 @@ set_itr_now:
min(adapter->itr + (new_itr >> 2), new_itr) :
new_itr;
adapter->itr = new_itr;
- ew32(ITR, 1000000000 / (new_itr * 256));
+ adapter->rx_ring->itr_val = new_itr;
+ if (adapter->msix_entries)
+ adapter->rx_ring->set_itr = 1;
+ else
+ ew32(ITR, 1000000000 / (new_itr * 256));
}
}
/**
+ * e1000_alloc_queues - Allocate memory for all rings
+ * @adapter: board private structure to initialize
+ **/
+static int __devinit e1000_alloc_queues(struct e1000_adapter *adapter)
+{
+ adapter->tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+ if (!adapter->tx_ring)
+ goto err;
+
+ adapter->rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
+ if (!adapter->rx_ring)
+ goto err;
+
+ return 0;
+err:
+ e_err("Unable to allocate memory for queues\n");
+ kfree(adapter->rx_ring);
+ kfree(adapter->tx_ring);
+ return -ENOMEM;
+}
+
+/**
* e1000_clean - NAPI Rx polling callback
* @napi: struct associated with this polling callback
* @budget: amount of packets driver is allowed to process this poll
@@ -1667,12 +1986,17 @@ set_itr_now:
static int e1000_clean(struct napi_struct *napi, int budget)
{
struct e1000_adapter *adapter = container_of(napi, struct e1000_adapter, napi);
+ struct e1000_hw *hw = &adapter->hw;
struct net_device *poll_dev = adapter->netdev;
int tx_cleaned = 0, work_done = 0;
/* Must NOT use netdev_priv macro here. */
adapter = poll_dev->priv;
+ if (adapter->msix_entries &&
+ !(adapter->rx_ring->ims_val & adapter->tx_ring->ims_val))
+ goto clean_rx;
+
/*
* e1000_clean is called per-cpu. This lock protects
* tx_ring from being cleaned by multiple cpus
@@ -1684,6 +2008,7 @@ static int e1000_clean(struct napi_struct *napi, int budget)
spin_unlock(&adapter->tx_queue_lock);
}
+clean_rx:
adapter->clean_rx(adapter, &work_done, budget);
if (tx_cleaned)
@@ -1694,7 +2019,10 @@ static int e1000_clean(struct napi_struct *napi, int budget)
if (adapter->itr_setting & 3)
e1000_set_itr(adapter);
netif_rx_complete(poll_dev, napi);
- e1000_irq_enable(adapter);
+ if (adapter->msix_entries)
+ ew32(IMS, adapter->rx_ring->ims_val);
+ else
+ e1000_irq_enable(adapter);
}
return work_done;
@@ -1793,7 +2121,6 @@ static void e1000_vlan_rx_register(struct net_device *netdev,
if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
/* enable VLAN receive filtering */
rctl = er32(RCTL);
- rctl |= E1000_RCTL_VFE;
rctl &= ~E1000_RCTL_CFIEN;
ew32(RCTL, rctl);
e1000_update_mng_vlan(adapter);
@@ -1805,10 +2132,6 @@ static void e1000_vlan_rx_register(struct net_device *netdev,
ew32(CTRL, ctrl);
if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER) {
- /* disable VLAN filtering */
- rctl = er32(RCTL);
- rctl &= ~E1000_RCTL_VFE;
- ew32(RCTL, rctl);
if (adapter->mng_vlan_id !=
(u16)E1000_MNG_VLAN_NONE) {
e1000_vlan_rx_kill_vid(netdev,
@@ -2231,11 +2554,16 @@ static void e1000_set_multi(struct net_device *netdev)
if (netdev->flags & IFF_PROMISC) {
rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
- } else if (netdev->flags & IFF_ALLMULTI) {
- rctl |= E1000_RCTL_MPE;
- rctl &= ~E1000_RCTL_UPE;
+ rctl &= ~E1000_RCTL_VFE;
} else {
- rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
+ if (netdev->flags & IFF_ALLMULTI) {
+ rctl |= E1000_RCTL_MPE;
+ rctl &= ~E1000_RCTL_UPE;
+ } else {
+ rctl &= ~(E1000_RCTL_UPE | E1000_RCTL_MPE);
+ }
+ if (adapter->flags & FLAG_HAS_HW_VLAN_FILTER)
+ rctl |= E1000_RCTL_VFE;
}
ew32(RCTL, rctl);
@@ -2451,13 +2779,13 @@ void e1000e_reset(struct e1000_adapter *adapter)
* For parts with AMT enabled, let the firmware know
* that the network interface is in control
*/
- if ((adapter->flags & FLAG_HAS_AMT) && e1000e_check_mng_mode(hw))
+ if (adapter->flags & FLAG_HAS_AMT)
e1000_get_hw_control(adapter);
ew32(WUC, 0);
if (mac->ops.init_hw(hw))
- ndev_err(adapter->netdev, "Hardware Error\n");
+ e_err("Hardware Error\n");
e1000_update_mng_vlan(adapter);
@@ -2490,6 +2818,8 @@ int e1000e_up(struct e1000_adapter *adapter)
clear_bit(__E1000_DOWN, &adapter->state);
napi_enable(&adapter->napi);
+ if (adapter->msix_entries)
+ e1000_configure_msix(adapter);
e1000_irq_enable(adapter);
/* fire a link change interrupt to start the watchdog */
@@ -2514,7 +2844,7 @@ void e1000e_down(struct e1000_adapter *adapter)
ew32(RCTL, rctl & ~E1000_RCTL_EN);
/* flush and sleep below */
- netif_stop_queue(netdev);
+ netif_tx_stop_all_queues(netdev);
/* disable transmits in the hardware */
tctl = er32(TCTL);
@@ -2573,29 +2903,149 @@ static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
- adapter->tx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
- if (!adapter->tx_ring)
- goto err;
+ e1000e_set_interrupt_capability(adapter);
- adapter->rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
- if (!adapter->rx_ring)
- goto err;
+ if (e1000_alloc_queues(adapter))
+ return -ENOMEM;
spin_lock_init(&adapter->tx_queue_lock);
/* Explicitly disable IRQ since the NIC can be in any state. */
e1000_irq_disable(adapter);
- spin_lock_init(&adapter->stats_lock);
-
set_bit(__E1000_DOWN, &adapter->state);
return 0;
+}
-err:
- ndev_err(netdev, "Unable to allocate memory for queues\n");
- kfree(adapter->rx_ring);
- kfree(adapter->tx_ring);
- return -ENOMEM;
+/**
+ * e1000_intr_msi_test - Interrupt Handler
+ * @irq: interrupt number
+ * @data: pointer to a network interface device structure
+ **/
+static irqreturn_t e1000_intr_msi_test(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct e1000_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 icr = er32(ICR);
+
+ e_dbg("%s: icr is %08X\n", netdev->name, icr);
+ if (icr & E1000_ICR_RXSEQ) {
+ adapter->flags &= ~FLAG_MSI_TEST_FAILED;
+ wmb();
+ }
+
+ return IRQ_HANDLED;
+}
+
+/**
+ * e1000_test_msi_interrupt - Returns 0 for successful test
+ * @adapter: board private struct
+ *
+ * code flow taken from tg3.c
+ **/
+static int e1000_test_msi_interrupt(struct e1000_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ int err;
+
+ /* poll_enable hasn't been called yet, so don't need disable */
+ /* clear any pending events */
+ er32(ICR);
+
+ /* free the real vector and request a test handler */
+ e1000_free_irq(adapter);
+ e1000e_reset_interrupt_capability(adapter);
+
+ /* Assume that the test fails, if it succeeds then the test
+ * MSI irq handler will unset this flag */
+ adapter->flags |= FLAG_MSI_TEST_FAILED;
+
+ err = pci_enable_msi(adapter->pdev);
+ if (err)
+ goto msi_test_failed;
+
+ err = request_irq(adapter->pdev->irq, &e1000_intr_msi_test, 0,
+ netdev->name, netdev);
+ if (err) {
+ pci_disable_msi(adapter->pdev);
+ goto msi_test_failed;
+ }
+
+ wmb();
+
+ e1000_irq_enable(adapter);
+
+ /* fire an unusual interrupt on the test handler */
+ ew32(ICS, E1000_ICS_RXSEQ);
+ e1e_flush();
+ msleep(50);
+
+ e1000_irq_disable(adapter);
+
+ rmb();
+
+ if (adapter->flags & FLAG_MSI_TEST_FAILED) {
+ adapter->int_mode = E1000E_INT_MODE_LEGACY;
+ err = -EIO;
+ e_info("MSI interrupt test failed!\n");
+ }
+
+ free_irq(adapter->pdev->irq, netdev);
+ pci_disable_msi(adapter->pdev);
+
+ if (err == -EIO)
+ goto msi_test_failed;
+
+ /* okay so the test worked, restore settings */
+ e_dbg("%s: MSI interrupt test succeeded!\n", netdev->name);
+msi_test_failed:
+ e1000e_set_interrupt_capability(adapter);
+ e1000_request_irq(adapter);
+ return err;
+}
+
+/**
+ * e1000_test_msi - Returns 0 if MSI test succeeds or INTx mode is restored
+ * @adapter: board private struct
+ *
+ * code flow taken from tg3.c, called with e1000 interrupts disabled.
+ **/
+static int e1000_test_msi(struct e1000_adapter *adapter)
+{
+ int err;
+ u16 pci_cmd;
+
+ if (!(adapter->flags & FLAG_MSI_ENABLED))
+ return 0;
+
+ /* disable SERR in case the MSI write causes a master abort */
+ pci_read_config_word(adapter->pdev, PCI_COMMAND, &pci_cmd);
+ pci_write_config_word(adapter->pdev, PCI_COMMAND,
+ pci_cmd & ~PCI_COMMAND_SERR);
+
+ err = e1000_test_msi_interrupt(adapter);
+
+ /* restore previous setting of command word */
+ pci_write_config_word(adapter->pdev, PCI_COMMAND, pci_cmd);
+
+ /* success ! */
+ if (!err)
+ return 0;
+
+ /* EIO means MSI test failed */
+ if (err != -EIO)
+ return err;
+
+ /* back to INTx mode */
+ e_warn("MSI interrupt test failed, using legacy interrupt.\n");
+
+ e1000_free_irq(adapter);
+
+ err = e1000_request_irq(adapter);
+
+ return err;
}
/**
@@ -2641,8 +3091,7 @@ static int e1000_open(struct net_device *netdev)
* If AMT is enabled, let the firmware know that the network
* interface is now open
*/
- if ((adapter->flags & FLAG_HAS_AMT) &&
- e1000e_check_mng_mode(&adapter->hw))
+ if (adapter->flags & FLAG_HAS_AMT)
e1000_get_hw_control(adapter);
/*
@@ -2657,6 +3106,19 @@ static int e1000_open(struct net_device *netdev)
if (err)
goto err_req_irq;
+ /*
+ * Work around PCIe errata with MSI interrupts causing some chipsets to
+ * ignore e1000e MSI messages, which means we need to test our MSI
+ * interrupt now
+ */
+ if (adapter->int_mode != E1000E_INT_MODE_LEGACY) {
+ err = e1000_test_msi(adapter);
+ if (err) {
+ e_err("Interrupt allocation failed\n");
+ goto err_req_irq;
+ }
+ }
+
/* From here on the code is the same as e1000e_up() */
clear_bit(__E1000_DOWN, &adapter->state);
@@ -2664,6 +3126,8 @@ static int e1000_open(struct net_device *netdev)
e1000_irq_enable(adapter);
+ netif_tx_start_all_queues(netdev);
+
/* fire a link status change interrupt to start the watchdog */
ew32(ICS, E1000_ICS_LSC);
@@ -2718,8 +3182,7 @@ static int e1000_close(struct net_device *netdev)
* If AMT is enabled, let the firmware know that the network
* interface is now closed
*/
- if ((adapter->flags & FLAG_HAS_AMT) &&
- e1000e_check_mng_mode(&adapter->hw))
+ if (adapter->flags & FLAG_HAS_AMT)
e1000_release_hw_control(adapter);
return 0;
@@ -2764,6 +3227,21 @@ static int e1000_set_mac(struct net_device *netdev, void *p)
return 0;
}
+/**
+ * e1000e_update_phy_task - work thread to update phy
+ * @work: pointer to our work struct
+ *
+ * this worker thread exists because we must acquire a
+ * semaphore to read the phy, which we could msleep while
+ * waiting for it, and we can't msleep in a timer.
+ **/
+static void e1000e_update_phy_task(struct work_struct *work)
+{
+ struct e1000_adapter *adapter = container_of(work,
+ struct e1000_adapter, update_phy_task);
+ e1000_get_phy_info(&adapter->hw);
+}
+
/*
* Need to wait a few seconds after link up to get diagnostic information from
* the phy
@@ -2771,7 +3249,7 @@ static int e1000_set_mac(struct net_device *netdev, void *p)
static void e1000_update_phy_info(unsigned long data)
{
struct e1000_adapter *adapter = (struct e1000_adapter *) data;
- e1000_get_phy_info(&adapter->hw);
+ schedule_work(&adapter->update_phy_task);
}
/**
@@ -2782,10 +3260,6 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
struct pci_dev *pdev = adapter->pdev;
- unsigned long irq_flags;
- u16 phy_tmp;
-
-#define PHY_IDLE_ERROR_COUNT_MASK 0x00FF
/*
* Prevent stats update while adapter is being reset, or if the pci
@@ -2796,14 +3270,6 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
if (pci_channel_offline(pdev))
return;
- spin_lock_irqsave(&adapter->stats_lock, irq_flags);
-
- /*
- * these counters are modified from e1000_adjust_tbi_stats,
- * called from the interrupt context, so they must only
- * be written while holding adapter->stats_lock
- */
-
adapter->stats.crcerrs += er32(CRCERRS);
adapter->stats.gprc += er32(GPRC);
adapter->stats.gorc += er32(GORCL);
@@ -2840,7 +3306,8 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
adapter->stats.algnerrc += er32(ALGNERRC);
adapter->stats.rxerrc += er32(RXERRC);
- adapter->stats.tncrs += er32(TNCRS);
+ if (hw->mac.type != e1000_82574)
+ adapter->stats.tncrs += er32(TNCRS);
adapter->stats.cexterr += er32(CEXTERR);
adapter->stats.tsctc += er32(TSCTC);
adapter->stats.tsctfc += er32(TSCTFC);
@@ -2874,21 +3341,10 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
/* Tx Dropped needs to be maintained elsewhere */
- /* Phy Stats */
- if (hw->phy.media_type == e1000_media_type_copper) {
- if ((adapter->link_speed == SPEED_1000) &&
- (!e1e_rphy(hw, PHY_1000T_STATUS, &phy_tmp))) {
- phy_tmp &= PHY_IDLE_ERROR_COUNT_MASK;
- adapter->phy_stats.idle_errors += phy_tmp;
- }
- }
-
/* Management Stats */
adapter->stats.mgptc += er32(MGTPTC);
adapter->stats.mgprc += er32(MGTPRC);
adapter->stats.mgpdc += er32(MGTPDC);
-
- spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
}
/**
@@ -2900,10 +3356,6 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
struct e1000_hw *hw = &adapter->hw;
struct e1000_phy_regs *phy = &adapter->phy_regs;
int ret_val;
- unsigned long irq_flags;
-
-
- spin_lock_irqsave(&adapter->stats_lock, irq_flags);
if ((er32(STATUS) & E1000_STATUS_LU) &&
(adapter->hw.phy.media_type == e1000_media_type_copper)) {
@@ -2916,8 +3368,7 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
ret_val |= e1e_rphy(hw, PHY_1000T_STATUS, &phy->stat1000);
ret_val |= e1e_rphy(hw, PHY_EXT_STATUS, &phy->estatus);
if (ret_val)
- ndev_warn(adapter->netdev,
- "Error reading PHY register\n");
+ e_warn("Error reading PHY register\n");
} else {
/*
* Do not read PHY registers if link is not up
@@ -2935,25 +3386,21 @@ static void e1000_phy_read_status(struct e1000_adapter *adapter)
phy->stat1000 = 0;
phy->estatus = (ESTATUS_1000_TFULL | ESTATUS_1000_THALF);
}
-
- spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
}
static void e1000_print_link_info(struct e1000_adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
- struct net_device *netdev = adapter->netdev;
u32 ctrl = er32(CTRL);
- ndev_info(netdev,
- "Link is Up %d Mbps %s, Flow Control: %s\n",
- adapter->link_speed,
- (adapter->link_duplex == FULL_DUPLEX) ?
- "Full Duplex" : "Half Duplex",
- ((ctrl & E1000_CTRL_TFCE) && (ctrl & E1000_CTRL_RFCE)) ?
- "RX/TX" :
- ((ctrl & E1000_CTRL_RFCE) ? "RX" :
- ((ctrl & E1000_CTRL_TFCE) ? "TX" : "None" )));
+ e_info("Link is Up %d Mbps %s, Flow Control: %s\n",
+ adapter->link_speed,
+ (adapter->link_duplex == FULL_DUPLEX) ?
+ "Full Duplex" : "Half Duplex",
+ ((ctrl & E1000_CTRL_TFCE) && (ctrl & E1000_CTRL_RFCE)) ?
+ "RX/TX" :
+ ((ctrl & E1000_CTRL_RFCE) ? "RX" :
+ ((ctrl & E1000_CTRL_TFCE) ? "TX" : "None" )));
}
static bool e1000_has_link(struct e1000_adapter *adapter)
@@ -2993,8 +3440,7 @@ static bool e1000_has_link(struct e1000_adapter *adapter)
if ((ret_val == E1000_ERR_PHY) && (hw->phy.type == e1000_phy_igp_3) &&
(er32(CTRL) & E1000_PHY_CTRL_GBE_DISABLE)) {
/* See e1000_kmrn_lock_loss_workaround_ich8lan() */
- ndev_info(adapter->netdev,
- "Gigabit has been disabled, downgrading speed\n");
+ e_info("Gigabit has been disabled, downgrading speed\n");
}
return link_active;
@@ -3057,6 +3503,27 @@ static void e1000_watchdog_task(struct work_struct *work)
&adapter->link_duplex);
e1000_print_link_info(adapter);
/*
+ * On supported PHYs, check for duplex mismatch only
+ * if link has autonegotiated at 10/100 half
+ */
+ if ((hw->phy.type == e1000_phy_igp_3 ||
+ hw->phy.type == e1000_phy_bm) &&
+ (hw->mac.autoneg == true) &&
+ (adapter->link_speed == SPEED_10 ||
+ adapter->link_speed == SPEED_100) &&
+ (adapter->link_duplex == HALF_DUPLEX)) {
+ u16 autoneg_exp;
+
+ e1e_rphy(hw, PHY_AUTONEG_EXP, &autoneg_exp);
+
+ if (!(autoneg_exp & NWAY_ER_LP_NWAY_CAPS))
+ e_info("Autonegotiated half duplex but"
+ " link partner cannot autoneg. "
+ " Try forcing full duplex if "
+ "link gets many collisions.\n");
+ }
+
+ /*
* tweak tx_queue_len according to speed/duplex
* and adjust the timeout factor
*/
@@ -3066,7 +3533,7 @@ static void e1000_watchdog_task(struct work_struct *work)
case SPEED_10:
txb2b = 0;
netdev->tx_queue_len = 10;
- adapter->tx_timeout_factor = 14;
+ adapter->tx_timeout_factor = 16;
break;
case SPEED_100:
txb2b = 0;
@@ -3095,8 +3562,7 @@ static void e1000_watchdog_task(struct work_struct *work)
switch (adapter->link_speed) {
case SPEED_10:
case SPEED_100:
- ndev_info(netdev,
- "10/100 speed: disabling TSO\n");
+ e_info("10/100 speed: disabling TSO\n");
netdev->features &= ~NETIF_F_TSO;
netdev->features &= ~NETIF_F_TSO6;
break;
@@ -3119,7 +3585,7 @@ static void e1000_watchdog_task(struct work_struct *work)
ew32(TCTL, tctl);
netif_carrier_on(netdev);
- netif_wake_queue(netdev);
+ netif_tx_wake_all_queues(netdev);
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_timer(&adapter->phy_info_timer,
@@ -3129,9 +3595,9 @@ static void e1000_watchdog_task(struct work_struct *work)
if (netif_carrier_ok(netdev)) {
adapter->link_speed = 0;
adapter->link_duplex = 0;
- ndev_info(netdev, "Link is Down\n");
+ e_info("Link is Down\n");
netif_carrier_off(netdev);
- netif_stop_queue(netdev);
+ netif_tx_stop_all_queues(netdev);
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_timer(&adapter->phy_info_timer,
round_jiffies(jiffies + 2 * HZ));
@@ -3172,7 +3638,10 @@ link_up:
}
/* Cause software interrupt to ensure Rx ring is cleaned */
- ew32(ICS, E1000_ICS_RXDMT0);
+ if (adapter->msix_entries)
+ ew32(ICS, adapter->rx_ring->ims_val);
+ else
+ ew32(ICS, E1000_ICS_RXDMT0);
/* Force detection of hung controller every watchdog period */
adapter->detect_tx_hung = 1;
@@ -3280,34 +3749,50 @@ static bool e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb)
struct e1000_buffer *buffer_info;
unsigned int i;
u8 css;
+ u32 cmd_len = E1000_TXD_CMD_DEXT;
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- css = skb_transport_offset(skb);
-
- i = tx_ring->next_to_use;
- buffer_info = &tx_ring->buffer_info[i];
- context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
-
- context_desc->lower_setup.ip_config = 0;
- context_desc->upper_setup.tcp_fields.tucss = css;
- context_desc->upper_setup.tcp_fields.tucso =
- css + skb->csum_offset;
- context_desc->upper_setup.tcp_fields.tucse = 0;
- context_desc->tcp_seg_setup.data = 0;
- context_desc->cmd_and_length = cpu_to_le32(E1000_TXD_CMD_DEXT);
+ if (skb->ip_summed != CHECKSUM_PARTIAL)
+ return 0;
- buffer_info->time_stamp = jiffies;
- buffer_info->next_to_watch = i;
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+ cmd_len |= E1000_TXD_CMD_TCP;
+ break;
+ case __constant_htons(ETH_P_IPV6):
+ /* XXX not handling all IPV6 headers */
+ if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+ cmd_len |= E1000_TXD_CMD_TCP;
+ break;
+ default:
+ if (unlikely(net_ratelimit()))
+ e_warn("checksum_partial proto=%x!\n", skb->protocol);
+ break;
+ }
- i++;
- if (i == tx_ring->count)
- i = 0;
- tx_ring->next_to_use = i;
+ css = skb_transport_offset(skb);
- return 1;
- }
+ i = tx_ring->next_to_use;
+ buffer_info = &tx_ring->buffer_info[i];
+ context_desc = E1000_CONTEXT_DESC(*tx_ring, i);
+
+ context_desc->lower_setup.ip_config = 0;
+ context_desc->upper_setup.tcp_fields.tucss = css;
+ context_desc->upper_setup.tcp_fields.tucso =
+ css + skb->csum_offset;
+ context_desc->upper_setup.tcp_fields.tucse = 0;
+ context_desc->tcp_seg_setup.data = 0;
+ context_desc->cmd_and_length = cpu_to_le32(cmd_len);
+
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ tx_ring->next_to_use = i;
- return 0;
+ return 1;
}
#define E1000_MAX_PER_TXD 8192
@@ -3343,7 +3828,7 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
skb->data + offset,
size,
PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(buffer_info->dma)) {
+ if (pci_dma_mapping_error(adapter->pdev, buffer_info->dma)) {
dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
adapter->tx_dma_failed++;
return -1;
@@ -3381,7 +3866,8 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
offset,
size,
PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(buffer_info->dma)) {
+ if (pci_dma_mapping_error(adapter->pdev,
+ buffer_info->dma)) {
dev_err(&adapter->pdev->dev,
"TX DMA page map failed\n");
adapter->tx_dma_failed++;
@@ -3602,8 +4088,7 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
pull_size = min((unsigned int)4, skb->data_len);
if (!__pskb_pull_tail(skb, pull_size)) {
- ndev_err(netdev,
- "__pskb_pull_tail failed.\n");
+ e_err("__pskb_pull_tail failed.\n");
dev_kfree_skb_any(skb);
return NETDEV_TX_OK;
}
@@ -3733,27 +4218,27 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
struct e1000_adapter *adapter = netdev_priv(netdev);
int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
- if ((max_frame < ETH_ZLEN + ETH_FCS_LEN) ||
+ if ((new_mtu < ETH_ZLEN + ETH_FCS_LEN + VLAN_HLEN) ||
(max_frame > MAX_JUMBO_FRAME_SIZE)) {
- ndev_err(netdev, "Invalid MTU setting\n");
+ e_err("Invalid MTU setting\n");
return -EINVAL;
}
/* Jumbo frame size limits */
if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) {
if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
- ndev_err(netdev, "Jumbo Frames not supported.\n");
+ e_err("Jumbo Frames not supported.\n");
return -EINVAL;
}
if (adapter->hw.phy.type == e1000_phy_ife) {
- ndev_err(netdev, "Jumbo Frames not supported.\n");
+ e_err("Jumbo Frames not supported.\n");
return -EINVAL;
}
}
#define MAX_STD_JUMBO_FRAME_SIZE 9234
if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
- ndev_err(netdev, "MTU > 9216 not supported.\n");
+ e_err("MTU > 9216 not supported.\n");
return -EINVAL;
}
@@ -3790,8 +4275,7 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN
+ ETH_FCS_LEN;
- ndev_info(netdev, "changing MTU from %d to %d\n",
- netdev->mtu, new_mtu);
+ e_info("changing MTU from %d to %d\n", netdev->mtu, new_mtu);
netdev->mtu = new_mtu;
if (netif_running(netdev))
@@ -3890,6 +4374,7 @@ static int e1000_suspend(struct pci_dev *pdev, pm_message_t state)
e1000e_down(adapter);
e1000_free_irq(adapter);
}
+ e1000e_reset_interrupt_capability(adapter);
retval = pci_save_state(pdev);
if (retval)
@@ -4003,7 +4488,8 @@ static int e1000_resume(struct pci_dev *pdev)
pci_set_power_state(pdev, PCI_D0);
pci_restore_state(pdev);
e1000e_disable_l1aspm(pdev);
- err = pci_enable_device(pdev);
+
+ err = pci_enable_device_mem(pdev);
if (err) {
dev_err(&pdev->dev,
"Cannot enable PCI device from suspend\n");
@@ -4015,6 +4501,7 @@ static int e1000_resume(struct pci_dev *pdev)
pci_enable_wake(pdev, PCI_D3hot, 0);
pci_enable_wake(pdev, PCI_D3cold, 0);
+ e1000e_set_interrupt_capability(adapter);
if (netif_running(netdev)) {
err = e1000_request_irq(adapter);
if (err)
@@ -4037,7 +4524,7 @@ static int e1000_resume(struct pci_dev *pdev)
* is up. For all other cases, let the f/w know that the h/w is now
* under the control of the driver.
*/
- if (!(adapter->flags & FLAG_HAS_AMT) || !e1000e_check_mng_mode(&adapter->hw))
+ if (!(adapter->flags & FLAG_HAS_AMT))
e1000_get_hw_control(adapter);
return 0;
@@ -4062,8 +4549,6 @@ static void e1000_netpoll(struct net_device *netdev)
disable_irq(adapter->pdev->irq);
e1000_intr(adapter->pdev->irq, netdev);
- e1000_clean_tx_irq(adapter);
-
enable_irq(adapter->pdev->irq);
}
#endif
@@ -4104,9 +4589,11 @@ static pci_ers_result_t e1000_io_slot_reset(struct pci_dev *pdev)
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
+ int err;
e1000e_disable_l1aspm(pdev);
- if (pci_enable_device(pdev)) {
+ err = pci_enable_device_mem(pdev);
+ if (err) {
dev_err(&pdev->dev,
"Cannot re-enable PCI device after reset.\n");
return PCI_ERS_RESULT_DISCONNECT;
@@ -4153,8 +4640,7 @@ static void e1000_io_resume(struct pci_dev *pdev)
* is up. For all other cases, let the f/w know that the h/w is now
* under the control of the driver.
*/
- if (!(adapter->flags & FLAG_HAS_AMT) ||
- !e1000e_check_mng_mode(&adapter->hw))
+ if (!(adapter->flags & FLAG_HAS_AMT))
e1000_get_hw_control(adapter);
}
@@ -4166,22 +4652,43 @@ static void e1000_print_device_info(struct e1000_adapter *adapter)
u32 pba_num;
/* print bus type/speed/width info */
- ndev_info(netdev, "(PCI Express:2.5GB/s:%s) "
- "%02x:%02x:%02x:%02x:%02x:%02x\n",
- /* bus width */
- ((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" :
- "Width x1"),
- /* MAC address */
- netdev->dev_addr[0], netdev->dev_addr[1],
- netdev->dev_addr[2], netdev->dev_addr[3],
- netdev->dev_addr[4], netdev->dev_addr[5]);
- ndev_info(netdev, "Intel(R) PRO/%s Network Connection\n",
- (hw->phy.type == e1000_phy_ife)
- ? "10/100" : "1000");
+ e_info("(PCI Express:2.5GB/s:%s) %02x:%02x:%02x:%02x:%02x:%02x\n",
+ /* bus width */
+ ((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" :
+ "Width x1"),
+ /* MAC address */
+ netdev->dev_addr[0], netdev->dev_addr[1],
+ netdev->dev_addr[2], netdev->dev_addr[3],
+ netdev->dev_addr[4], netdev->dev_addr[5]);
+ e_info("Intel(R) PRO/%s Network Connection\n",
+ (hw->phy.type == e1000_phy_ife) ? "10/100" : "1000");
e1000e_read_pba_num(hw, &pba_num);
- ndev_info(netdev, "MAC: %d, PHY: %d, PBA No: %06x-%03x\n",
- hw->mac.type, hw->phy.type,
- (pba_num >> 8), (pba_num & 0xff));
+ e_info("MAC: %d, PHY: %d, PBA No: %06x-%03x\n",
+ hw->mac.type, hw->phy.type, (pba_num >> 8), (pba_num & 0xff));
+}
+
+static void e1000_eeprom_checks(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ int ret_val;
+ u16 buf = 0;
+
+ if (hw->mac.type != e1000_82573)
+ return;
+
+ ret_val = e1000_read_nvm(hw, NVM_INIT_CONTROL2_REG, 1, &buf);
+ if (!(le16_to_cpu(buf) & (1 << 0))) {
+ /* Deep Smart Power Down (DSPD) */
+ dev_warn(&adapter->pdev->dev,
+ "Warning: detected DSPD enabled in EEPROM\n");
+ }
+
+ ret_val = e1000_read_nvm(hw, NVM_INIT_3GIO_3, 1, &buf);
+ if (le16_to_cpu(buf) & (3 << 2)) {
+ /* ASPM enable */
+ dev_warn(&adapter->pdev->dev,
+ "Warning: detected ASPM enabled in EEPROM\n");
+ }
}
/**
@@ -4211,7 +4718,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
u16 eeprom_apme_mask = E1000_EEPROM_APME;
e1000e_disable_l1aspm(pdev);
- err = pci_enable_device(pdev);
+
+ err = pci_enable_device_mem(pdev);
if (err)
return err;
@@ -4234,7 +4742,9 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
}
}
- err = pci_request_regions(pdev, e1000e_driver_name);
+ err = pci_request_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM),
+ e1000e_driver_name);
if (err)
goto err_pci_reg;
@@ -4303,6 +4813,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
adapter->bd_number = cards_found++;
+ e1000e_check_options(adapter);
+
/* setup adapter struct */
err = e1000_sw_init(adapter);
if (err)
@@ -4318,6 +4830,10 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
if (err)
goto err_hw_init;
+ if ((adapter->flags & FLAG_IS_ICH) &&
+ (adapter->flags & FLAG_READ_ONLY_NVM))
+ e1000e_write_protect_nvm_ich8lan(&adapter->hw);
+
hw->mac.ops.get_bus_info(&adapter->hw);
adapter->hw.phy.autoneg_wait_to_complete = 0;
@@ -4330,8 +4846,7 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
}
if (e1000_check_reset_block(&adapter->hw))
- ndev_info(netdev,
- "PHY reset is blocked due to SOL/IDER session.\n");
+ e_info("PHY reset is blocked due to SOL/IDER session.\n");
netdev->features = NETIF_F_SG |
NETIF_F_HW_CSUM |
@@ -4344,6 +4859,11 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
netdev->features |= NETIF_F_TSO;
netdev->features |= NETIF_F_TSO6;
+ netdev->vlan_features |= NETIF_F_TSO;
+ netdev->vlan_features |= NETIF_F_TSO6;
+ netdev->vlan_features |= NETIF_F_HW_CSUM;
+ netdev->vlan_features |= NETIF_F_SG;
+
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
@@ -4370,25 +4890,26 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
if (e1000_validate_nvm_checksum(&adapter->hw) >= 0)
break;
if (i == 2) {
- ndev_err(netdev, "The NVM Checksum Is Not Valid\n");
+ e_err("The NVM Checksum Is Not Valid\n");
err = -EIO;
goto err_eeprom;
}
}
+ e1000_eeprom_checks(adapter);
+
/* copy the MAC address out of the NVM */
if (e1000e_read_mac_addr(&adapter->hw))
- ndev_err(netdev, "NVM Read Error while reading MAC address\n");
+ e_err("NVM Read Error while reading MAC address\n");
memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
if (!is_valid_ether_addr(netdev->perm_addr)) {
- ndev_err(netdev, "Invalid MAC Address: "
- "%02x:%02x:%02x:%02x:%02x:%02x\n",
- netdev->perm_addr[0], netdev->perm_addr[1],
- netdev->perm_addr[2], netdev->perm_addr[3],
- netdev->perm_addr[4], netdev->perm_addr[5]);
+ e_err("Invalid MAC Address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ netdev->perm_addr[0], netdev->perm_addr[1],
+ netdev->perm_addr[2], netdev->perm_addr[3],
+ netdev->perm_addr[4], netdev->perm_addr[5]);
err = -EIO;
goto err_eeprom;
}
@@ -4403,8 +4924,8 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
INIT_WORK(&adapter->reset_task, e1000_reset_task);
INIT_WORK(&adapter->watchdog_task, e1000_watchdog_task);
-
- e1000e_check_options(adapter);
+ INIT_WORK(&adapter->downshift_task, e1000e_downshift_workaround);
+ INIT_WORK(&adapter->update_phy_task, e1000e_update_phy_task);
/* Initialize link parameters. User can change them with ethtool */
adapter->hw.mac.autoneg = 1;
@@ -4458,13 +4979,12 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
* is up. For all other cases, let the f/w know that the h/w is now
* under the control of the driver.
*/
- if (!(adapter->flags & FLAG_HAS_AMT) ||
- !e1000e_check_mng_mode(&adapter->hw))
+ if (!(adapter->flags & FLAG_HAS_AMT))
e1000_get_hw_control(adapter);
/* tell the stack to leave us alone until e1000_open() is called */
netif_carrier_off(netdev);
- netif_stop_queue(netdev);
+ netif_tx_stop_all_queues(netdev);
strcpy(netdev->name, "eth%d");
err = register_netdev(netdev);
@@ -4476,24 +4996,25 @@ static int __devinit e1000_probe(struct pci_dev *pdev,
return 0;
err_register:
-err_hw_init:
- e1000_release_hw_control(adapter);
+ if (!(adapter->flags & FLAG_HAS_AMT))
+ e1000_release_hw_control(adapter);
err_eeprom:
if (!e1000_check_reset_block(&adapter->hw))
e1000_phy_hw_reset(&adapter->hw);
+err_hw_init:
- if (adapter->hw.flash_address)
- iounmap(adapter->hw.flash_address);
-
-err_flashmap:
kfree(adapter->tx_ring);
kfree(adapter->rx_ring);
err_sw_init:
+ if (adapter->hw.flash_address)
+ iounmap(adapter->hw.flash_address);
+err_flashmap:
iounmap(adapter->hw.hw_addr);
err_ioremap:
free_netdev(netdev);
err_alloc_etherdev:
- pci_release_regions(pdev);
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
err_pci_reg:
err_dma:
pci_disable_device(pdev);
@@ -4535,13 +5056,15 @@ static void __devexit e1000_remove(struct pci_dev *pdev)
if (!e1000_check_reset_block(&adapter->hw))
e1000_phy_hw_reset(&adapter->hw);
+ e1000e_reset_interrupt_capability(adapter);
kfree(adapter->tx_ring);
kfree(adapter->rx_ring);
iounmap(adapter->hw.hw_addr);
if (adapter->hw.flash_address)
iounmap(adapter->hw.flash_address);
- pci_release_regions(pdev);
+ pci_release_selected_regions(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM));
free_netdev(netdev);
@@ -4575,6 +5098,8 @@ static struct pci_device_id e1000_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E_IAMT), board_82573 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82573L), board_82573 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82574L), board_82574 },
+
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_DPT),
board_80003es2lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_SPT),
@@ -4597,6 +5122,7 @@ static struct pci_device_id e1000_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_GT), board_ich9lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_AMT), board_ich9lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_C), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_BM), board_ich9lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M), board_ich9lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M_AMT), board_ich9lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IGP_M_V), board_ich9lan },
@@ -4605,6 +5131,9 @@ static struct pci_device_id e1000_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_LF), board_ich9lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_V), board_ich9lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_D_BM_LM), board_ich10lan },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_D_BM_LF), board_ich10lan },
+
{ } /* terminate list */
};
MODULE_DEVICE_TABLE(pci, e1000_pci_tbl);