/*******************************************************************************
Intel PRO/1000 Linux driver
- Copyright(c) 1999 - 2007 Intel Corporation.
+ Copyright(c) 1999 - 2008 Intel Corporation.
This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
#include <linux/if_vlan.h>
#include <linux/cpu.h>
#include <linux/smp.h>
+#include <linux/pm_qos_params.h>
+#include <linux/aer.h>
#include "e1000.h"
-#define DRV_VERSION "0.2.0"
+#define DRV_VERSION "0.3.3.4-k2"
char e1000e_driver_name[] = "e1000e";
const char e1000e_driver_version[] = DRV_VERSION;
[board_82571] = &e1000_82571_info,
[board_82572] = &e1000_82572_info,
[board_82573] = &e1000_82573_info,
+ [board_82574] = &e1000_82574_info,
+ [board_82583] = &e1000_82583_info,
[board_80003es2lan] = &e1000_es2_info,
[board_ich8lan] = &e1000_ich8_info,
[board_ich9lan] = &e1000_ich9_info,
+ [board_ich10lan] = &e1000_ich10_info,
};
#ifdef DEBUG
}
/**
- * e1000_receive_skb - helper function to handle rx indications
+ * e1000_receive_skb - helper function to handle Rx indications
* @adapter: board private structure
* @status: descriptor status field as written by hardware
* @vlan: descriptor vlan field as written by hardware (no le/be conversion)
skb->protocol = eth_type_trans(skb, netdev);
if (adapter->vlgrp && (status & E1000_RXD_STAT_VP))
- vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
- le16_to_cpu(vlan) &
- E1000_RXD_SPC_VLAN_MASK);
+ vlan_gro_receive(&adapter->napi, adapter->vlgrp,
+ le16_to_cpu(vlan), skb);
else
- netif_receive_skb(skb);
-
- netdev->last_rx = jiffies;
+ napi_gro_receive(&adapter->napi, skb);
}
/**
/* TCP checksum is good */
skb->ip_summed = CHECKSUM_UNNECESSARY;
} else {
- /* IP fragment with UDP payload */
- /* Hardware complements the payload checksum, so we undo it
+ /*
+ * IP fragment with UDP payload
+ * Hardware complements the payload checksum, so we undo it
* and then put the value in host order for further stack use.
*/
__sum16 sum = (__force __sum16)htons(csum);
break;
}
- /* Make buffer alignment 2 beyond a 16 byte boundary
+ /*
+ * Make buffer alignment 2 beyond a 16 byte boundary
* this will result in a 16 byte aligned IP header after
* the 14 byte MAC header is removed
*/
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;
if (i-- == 0)
i = (rx_ring->count - 1);
- /* Force memory writes to complete before letting h/w
+ /*
+ * Force memory writes to complete before letting h/w
* know there are new descriptors to fetch. (Only
* applicable for weak-ordered memory model archs,
- * such as IA-64). */
+ * such as IA-64).
+ */
wmb();
writel(i, adapter->hw.hw_addr + rx_ring->tail);
}
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++;
break;
}
- /* Make buffer alignment 2 beyond a 16 byte boundary
+ /*
+ * Make buffer alignment 2 beyond a 16 byte boundary
* this will result in a 16 byte aligned IP header after
* the 14 byte MAC header is removed
*/
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 */
if (!(i--))
i = (rx_ring->count - 1);
- /* Force memory writes to complete before letting h/w
+ /*
+ * Force memory writes to complete before letting h/w
* know there are new descriptors to fetch. (Only
* applicable for weak-ordered memory model archs,
- * such as IA-64). */
+ * such as IA-64).
+ */
wmb();
- /* Hardware increments by 16 bytes, but packet split
+ /*
+ * Hardware increments by 16 bytes, but packet split
* descriptors are 32 bytes...so we increment tail
* twice as much.
*/
}
/**
+ * e1000_alloc_jumbo_rx_buffers - Replace used jumbo receive buffers
+ * @adapter: address of board private structure
+ * @cleaned_count: number of buffers to allocate this pass
+ **/
+
+static void e1000_alloc_jumbo_rx_buffers(struct e1000_adapter *adapter,
+ int cleaned_count)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_rx_desc *rx_desc;
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+ struct e1000_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ unsigned int bufsz = 256 -
+ 16 /* for skb_reserve */ -
+ NET_IP_ALIGN;
+
+ i = rx_ring->next_to_use;
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (cleaned_count--) {
+ skb = buffer_info->skb;
+ if (skb) {
+ skb_trim(skb, 0);
+ goto check_page;
+ }
+
+ skb = netdev_alloc_skb(netdev, bufsz);
+ if (unlikely(!skb)) {
+ /* Better luck next round */
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+
+ /* Make buffer alignment 2 beyond a 16 byte boundary
+ * this will result in a 16 byte aligned IP header after
+ * the 14 byte MAC header is removed
+ */
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ buffer_info->skb = skb;
+check_page:
+ /* allocate a new page if necessary */
+ if (!buffer_info->page) {
+ buffer_info->page = alloc_page(GFP_ATOMIC);
+ if (unlikely(!buffer_info->page)) {
+ adapter->alloc_rx_buff_failed++;
+ break;
+ }
+ }
+
+ if (!buffer_info->dma)
+ buffer_info->dma = pci_map_page(pdev,
+ buffer_info->page, 0,
+ PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ rx_desc = E1000_RX_DESC(*rx_ring, i);
+ rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
+
+ if (unlikely(++i == rx_ring->count))
+ i = 0;
+ buffer_info = &rx_ring->buffer_info[i];
+ }
+
+ if (likely(rx_ring->next_to_use != i)) {
+ rx_ring->next_to_use = i;
+ if (unlikely(i-- == 0))
+ i = (rx_ring->count - 1);
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64). */
+ wmb();
+ writel(i, adapter->hw.hw_addr + rx_ring->tail);
+ }
+}
+
+/**
* e1000_clean_rx_irq - Send received data up the network stack; legacy
* @adapter: board private structure
*
* 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;
goto next_desc;
}
+ /* adjust length to remove Ethernet CRC */
+ if (!(adapter->flags2 & FLAG2_CRC_STRIPPING))
+ length -= 4;
+
total_rx_bytes += length;
total_rx_packets++;
- /* code added for copybreak, this should improve
+ /*
+ * code added for copybreak, this should improve
* performance for small packets with large amounts
- * of reassembly being done in the stack */
+ * of reassembly being done in the stack
+ */
if (length < copybreak) {
struct sk_buff *new_skb =
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;
if (cleaned_count)
adapter->alloc_rx_buf(adapter, cleaned_count);
- adapter->total_rx_packets += total_rx_packets;
adapter->total_rx_bytes += total_rx_bytes;
- adapter->net_stats.rx_packets += total_rx_packets;
+ adapter->total_rx_packets += total_rx_packets;
adapter->net_stats.rx_bytes += total_rx_bytes;
+ adapter->net_stats.rx_packets += total_rx_packets;
return cleaned;
}
static void e1000_put_txbuf(struct e1000_adapter *adapter,
struct e1000_buffer *buffer_info)
{
- if (buffer_info->dma) {
- pci_unmap_page(adapter->pdev, buffer_info->dma,
- buffer_info->length, PCI_DMA_TODEVICE);
- buffer_info->dma = 0;
- }
+ buffer_info->dma = 0;
if (buffer_info->skb) {
+ skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb,
+ DMA_TO_DEVICE);
dev_kfree_skb_any(buffer_info->skb);
buffer_info->skb = NULL;
}
+ buffer_info->time_stamp = 0;
}
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);
}
/**
struct e1000_buffer *buffer_info;
unsigned int i, eop;
unsigned int count = 0;
- bool cleaned = 0;
+ bool cleaned;
unsigned int total_tx_bytes = 0, total_tx_packets = 0;
i = tx_ring->next_to_clean;
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
- while (eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) {
- for (cleaned = 0; !cleaned; ) {
+ while ((eop_desc->upper.data & cpu_to_le32(E1000_TXD_STAT_DD)) &&
+ (count < tx_ring->count)) {
+ for (cleaned = 0; !cleaned; count++) {
tx_desc = E1000_TX_DESC(*tx_ring, i);
buffer_info = &tx_ring->buffer_info[i];
cleaned = (i == eop);
eop = tx_ring->buffer_info[i].next_to_watch;
eop_desc = E1000_TX_DESC(*tx_ring, eop);
-#define E1000_TX_WEIGHT 64
- /* weight of a sort for tx, to avoid endless transmit cleanup */
- if (count++ == E1000_TX_WEIGHT)
- break;
}
tx_ring->next_to_clean = i;
/* Detect a transmit hang in hardware, this serializes the
* check with the clearing of time_stamp and movement of i */
adapter->detect_tx_hung = 0;
- if (tx_ring->buffer_info[eop].dma &&
- time_after(jiffies, tx_ring->buffer_info[eop].time_stamp
+ if (tx_ring->buffer_info[i].time_stamp &&
+ time_after(jiffies, tx_ring->buffer_info[i].time_stamp
+ (adapter->tx_timeout_factor * HZ))
- && !(er32(STATUS) &
- E1000_STATUS_TXOFF)) {
+ && !(er32(STATUS) & E1000_STATUS_TXOFF)) {
e1000_print_tx_hang(adapter);
netif_stop_queue(netdev);
}
}
adapter->total_tx_bytes += total_tx_bytes;
adapter->total_tx_packets += total_tx_packets;
- adapter->net_stats.tx_packets += total_tx_packets;
adapter->net_stats.tx_bytes += total_tx_bytes;
- return cleaned;
+ adapter->net_stats.tx_packets += total_tx_packets;
+ return (count < tx_ring->count);
}
/**
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;
}
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;
}
skb_put(skb, length);
{
- /* this looks ugly, but it seems compiler issues make it
- more efficient than reusing j */
+ /*
+ * this looks ugly, but it seems compiler issues make it
+ * more efficient than reusing j
+ */
int l1 = le16_to_cpu(rx_desc->wb.upper.length[0]);
- /* page alloc/put takes too long and effects small packet
- * throughput, so unsplit small packets and save the alloc/put*/
+ /*
+ * page alloc/put takes too long and effects small packet
+ * throughput, so unsplit small packets and save the alloc/put
+ * only valid in softirq (napi) context to call kmap_*
+ */
if (l1 && (l1 <= copybreak) &&
((length + l1) <= adapter->rx_ps_bsize0)) {
u8 *vaddr;
ps_page = &buffer_info->ps_pages[0];
- /* there is no documentation about how to call
+ /*
+ * there is no documentation about how to call
* kmap_atomic, so we can't hold the mapping
- * very long */
+ * very long
+ */
pci_dma_sync_single_for_cpu(pdev, ps_page->dma,
PAGE_SIZE, PCI_DMA_FROMDEVICE);
vaddr = kmap_atomic(ps_page->page, KM_SKB_DATA_SOFTIRQ);
pci_dma_sync_single_for_device(pdev, ps_page->dma,
PAGE_SIZE, PCI_DMA_FROMDEVICE);
+ /* remove the CRC */
+ if (!(adapter->flags2 & FLAG2_CRC_STRIPPING))
+ l1 -= 4;
+
skb_put(skb, l1);
goto copydone;
} /* if */
skb->truesize += length;
}
+ /* strip the ethernet crc, problem is we're using pages now so
+ * this whole operation can get a little cpu intensive
+ */
+ if (!(adapter->flags2 & FLAG2_CRC_STRIPPING))
+ pskb_trim(skb, skb->len - 4);
+
copydone:
total_rx_bytes += skb->len;
total_rx_packets++;
if (cleaned_count)
adapter->alloc_rx_buf(adapter, cleaned_count);
- adapter->total_rx_packets += total_rx_packets;
adapter->total_rx_bytes += total_rx_bytes;
+ adapter->total_rx_packets += total_rx_packets;
+ adapter->net_stats.rx_bytes += total_rx_bytes;
adapter->net_stats.rx_packets += total_rx_packets;
+ return cleaned;
+}
+
+/**
+ * e1000_consume_page - helper function
+ **/
+static void e1000_consume_page(struct e1000_buffer *bi, struct sk_buff *skb,
+ u16 length)
+{
+ bi->page = NULL;
+ skb->len += length;
+ skb->data_len += length;
+ skb->truesize += length;
+}
+
+/**
+ * e1000_clean_jumbo_rx_irq - Send received data up the network stack; legacy
+ * @adapter: board private structure
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+
+static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter,
+ int *work_done, int work_to_do)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ struct e1000_ring *rx_ring = adapter->rx_ring;
+ struct e1000_rx_desc *rx_desc, *next_rxd;
+ struct e1000_buffer *buffer_info, *next_buffer;
+ u32 length;
+ unsigned int i;
+ int cleaned_count = 0;
+ bool cleaned = false;
+ unsigned int total_rx_bytes=0, total_rx_packets=0;
+
+ i = rx_ring->next_to_clean;
+ rx_desc = E1000_RX_DESC(*rx_ring, i);
+ buffer_info = &rx_ring->buffer_info[i];
+
+ while (rx_desc->status & E1000_RXD_STAT_DD) {
+ struct sk_buff *skb;
+ u8 status;
+
+ if (*work_done >= work_to_do)
+ break;
+ (*work_done)++;
+
+ status = rx_desc->status;
+ skb = buffer_info->skb;
+ buffer_info->skb = NULL;
+
+ ++i;
+ if (i == rx_ring->count)
+ i = 0;
+ next_rxd = E1000_RX_DESC(*rx_ring, i);
+ prefetch(next_rxd);
+
+ next_buffer = &rx_ring->buffer_info[i];
+
+ cleaned = true;
+ cleaned_count++;
+ pci_unmap_page(pdev, buffer_info->dma, PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
+ buffer_info->dma = 0;
+
+ length = le16_to_cpu(rx_desc->length);
+
+ /* errors is only valid for DD + EOP descriptors */
+ if (unlikely((status & E1000_RXD_STAT_EOP) &&
+ (rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK))) {
+ /* recycle both page and skb */
+ buffer_info->skb = skb;
+ /* an error means any chain goes out the window
+ * too */
+ if (rx_ring->rx_skb_top)
+ dev_kfree_skb(rx_ring->rx_skb_top);
+ rx_ring->rx_skb_top = NULL;
+ goto next_desc;
+ }
+
+#define rxtop rx_ring->rx_skb_top
+ if (!(status & E1000_RXD_STAT_EOP)) {
+ /* this descriptor is only the beginning (or middle) */
+ if (!rxtop) {
+ /* this is the beginning of a chain */
+ rxtop = skb;
+ skb_fill_page_desc(rxtop, 0, buffer_info->page,
+ 0, length);
+ } else {
+ /* this is the middle of a chain */
+ skb_fill_page_desc(rxtop,
+ skb_shinfo(rxtop)->nr_frags,
+ buffer_info->page, 0, length);
+ /* re-use the skb, only consumed the page */
+ buffer_info->skb = skb;
+ }
+ e1000_consume_page(buffer_info, rxtop, length);
+ goto next_desc;
+ } else {
+ if (rxtop) {
+ /* end of the chain */
+ skb_fill_page_desc(rxtop,
+ skb_shinfo(rxtop)->nr_frags,
+ buffer_info->page, 0, length);
+ /* re-use the current skb, we only consumed the
+ * page */
+ buffer_info->skb = skb;
+ skb = rxtop;
+ rxtop = NULL;
+ e1000_consume_page(buffer_info, skb, length);
+ } else {
+ /* no chain, got EOP, this buf is the packet
+ * copybreak to save the put_page/alloc_page */
+ if (length <= copybreak &&
+ skb_tailroom(skb) >= length) {
+ u8 *vaddr;
+ vaddr = kmap_atomic(buffer_info->page,
+ KM_SKB_DATA_SOFTIRQ);
+ memcpy(skb_tail_pointer(skb), vaddr,
+ length);
+ kunmap_atomic(vaddr,
+ KM_SKB_DATA_SOFTIRQ);
+ /* re-use the page, so don't erase
+ * buffer_info->page */
+ skb_put(skb, length);
+ } else {
+ skb_fill_page_desc(skb, 0,
+ buffer_info->page, 0,
+ length);
+ e1000_consume_page(buffer_info, skb,
+ length);
+ }
+ }
+ }
+
+ /* Receive Checksum Offload XXX recompute due to CRC strip? */
+ e1000_rx_checksum(adapter,
+ (u32)(status) |
+ ((u32)(rx_desc->errors) << 24),
+ le16_to_cpu(rx_desc->csum), skb);
+
+ /* probably a little skewed due to removing CRC */
+ total_rx_bytes += skb->len;
+ total_rx_packets++;
+
+ /* eth type trans needs skb->data to point to something */
+ if (!pskb_may_pull(skb, ETH_HLEN)) {
+ e_err("pskb_may_pull failed.\n");
+ dev_kfree_skb(skb);
+ goto next_desc;
+ }
+
+ e1000_receive_skb(adapter, netdev, skb, status,
+ rx_desc->special);
+
+next_desc:
+ rx_desc->status = 0;
+
+ /* return some buffers to hardware, one at a time is too slow */
+ if (unlikely(cleaned_count >= E1000_RX_BUFFER_WRITE)) {
+ adapter->alloc_rx_buf(adapter, cleaned_count);
+ cleaned_count = 0;
+ }
+
+ /* use prefetched values */
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+ }
+ rx_ring->next_to_clean = i;
+
+ cleaned_count = e1000_desc_unused(rx_ring);
+ if (cleaned_count)
+ adapter->alloc_rx_buf(adapter, cleaned_count);
+
+ adapter->total_rx_bytes += total_rx_bytes;
+ adapter->total_rx_packets += total_rx_packets;
adapter->net_stats.rx_bytes += total_rx_bytes;
+ adapter->net_stats.rx_packets += total_rx_packets;
return cleaned;
}
pci_unmap_single(pdev, buffer_info->dma,
adapter->rx_buffer_len,
PCI_DMA_FROMDEVICE);
+ else if (adapter->clean_rx == e1000_clean_jumbo_rx_irq)
+ pci_unmap_page(pdev, buffer_info->dma,
+ PAGE_SIZE,
+ PCI_DMA_FROMDEVICE);
else if (adapter->clean_rx == e1000_clean_rx_irq_ps)
pci_unmap_single(pdev, buffer_info->dma,
adapter->rx_ps_bsize0,
buffer_info->dma = 0;
}
+ if (buffer_info->page) {
+ put_page(buffer_info->page);
+ buffer_info->page = NULL;
+ }
+
if (buffer_info->skb) {
dev_kfree_skb(buffer_info->skb);
buffer_info->skb = NULL;
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
struct e1000_hw *hw = &adapter->hw;
u32 icr = er32(ICR);
- /* read ICR disables interrupts using IAM, so keep up with our
- * enable/disable accounting */
- atomic_inc(&adapter->irq_sem);
+ /*
+ * read ICR disables interrupts using IAM
+ */
- if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
+ if (icr & E1000_ICR_LSC) {
hw->mac.get_link_status = 1;
- /* ICH8 workaround-- Call gig speed drop workaround on cable
- * disconnect (LSC) before accessing any PHY registers */
+ /*
+ * ICH8 workaround-- Call gig speed drop workaround on cable
+ * disconnect (LSC) before accessing any PHY registers
+ */
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
+ /*
+ * 80003ES2LAN workaround-- For packet buffer work-around on
* link down event; disable receives here in the ISR and reset
- * adapter in watchdog */
+ * adapter in watchdog
+ */
if (netif_carrier_ok(netdev) &&
adapter->flags & FLAG_RX_NEEDS_RESTART) {
/* disable receives */
u32 rctl = er32(RCTL);
ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ adapter->flags |= FLAG_RX_RESTART_NOW;
}
/* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
- if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
+ if (napi_schedule_prep(&adapter->napi)) {
adapter->total_tx_bytes = 0;
adapter->total_tx_packets = 0;
adapter->total_rx_bytes = 0;
adapter->total_rx_packets = 0;
- __netif_rx_schedule(netdev, &adapter->napi);
- } else {
- atomic_dec(&adapter->irq_sem);
+ __napi_schedule(&adapter->napi);
}
return IRQ_HANDLED;
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 */
- /* IMS will not auto-mask if INT_ASSERTED is not set, and if it is
- * not set, then the adapter didn't send an interrupt */
+ /*
+ * IMS will not auto-mask if INT_ASSERTED is not set, and if it is
+ * not set, then the adapter didn't send an interrupt
+ */
if (!(icr & E1000_ICR_INT_ASSERTED))
return IRQ_NONE;
- /* Interrupt Auto-Mask...upon reading ICR,
+ /*
+ * Interrupt Auto-Mask...upon reading ICR,
* interrupts are masked. No need for the
- * IMC write, but it does mean we should
- * account for it ASAP. */
- atomic_inc(&adapter->irq_sem);
+ * IMC write
+ */
- if (icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
+ if (icr & E1000_ICR_LSC) {
hw->mac.get_link_status = 1;
- /* ICH8 workaround-- Call gig speed drop workaround on cable
- * disconnect (LSC) before accessing any PHY registers */
+ /*
+ * ICH8 workaround-- Call gig speed drop workaround on cable
+ * disconnect (LSC) before accessing any PHY registers
+ */
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--
+ /*
+ * 80003ES2LAN workaround--
* For packet buffer work-around on link down event;
* disable receives here in the ISR and
* reset adapter in watchdog
/* disable receives */
rctl = er32(RCTL);
ew32(RCTL, rctl & ~E1000_RCTL_EN);
+ adapter->flags |= FLAG_RX_RESTART_NOW;
}
/* guard against interrupt when we're going down */
if (!test_bit(__E1000_DOWN, &adapter->state))
mod_timer(&adapter->watchdog_timer, jiffies + 1);
}
- if (netif_rx_schedule_prep(netdev, &adapter->napi)) {
- adapter->total_tx_bytes = 0;
- adapter->total_tx_packets = 0;
- adapter->total_rx_bytes = 0;
- adapter->total_rx_packets = 0;
- __netif_rx_schedule(netdev, &adapter->napi);
- } else {
- atomic_dec(&adapter->irq_sem);
- }
+ if (napi_schedule_prep(&adapter->napi)) {
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __napi_schedule(&adapter->napi);
+ }
+
+ 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)) {
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ 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:
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ 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 (napi_schedule_prep(&adapter->napi)) {
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __napi_schedule(&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-rx-0", 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++;
- return IRQ_HANDLED;
+ if (strlen(netdev->name) < (IFNAMSIZ - 5))
+ sprintf(adapter->tx_ring->name, "%s-tx-0", 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;
}
{
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);
}
/**
{
struct e1000_hw *hw = &adapter->hw;
- atomic_inc(&adapter->irq_sem);
ew32(IMC, ~0);
+ if (adapter->msix_entries)
+ ew32(EIAC_82574, 0);
e1e_flush();
synchronize_irq(adapter->pdev->irq);
}
{
struct e1000_hw *hw = &adapter->hw;
- if (atomic_dec_and_test(&adapter->irq_sem)) {
+ 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();
}
+ e1e_flush();
}
/**
ew32(SWSM, swsm | E1000_SWSM_DRV_LOAD);
} else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) {
ctrl_ext = er32(CTRL_EXT);
- ew32(CTRL_EXT,
- ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
+ ew32(CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
}
}
ew32(SWSM, swsm & ~E1000_SWSM_DRV_LOAD);
} else if (adapter->flags & FLAG_HAS_CTRLEXT_ON_LOAD) {
ctrl_ext = er32(CTRL_EXT);
- ew32(CTRL_EXT,
- ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
+ ew32(CTRL_EXT, ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
}
}
tx_ring->next_to_use = 0;
tx_ring->next_to_clean = 0;
- spin_lock_init(&adapter->tx_queue_lock);
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;
}
}
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;
}
* 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,
set_itr_now:
if (new_itr != adapter->itr) {
- /* this attempts to bias the interrupt rate towards Bulk
+ /*
+ * this attempts to bias the interrupt rate towards Bulk
* by adding intermediate steps when interrupt rate is
- * increasing */
+ * increasing
+ */
new_itr = new_itr > adapter->itr ?
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
- * @adapter: board private structure
+ * @napi: struct associated with this polling callback
* @budget: amount of packets driver is allowed to process this poll
**/
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;
+ adapter = netdev_priv(poll_dev);
- /* e1000_clean is called per-cpu. This lock protects
- * tx_ring from being cleaned by multiple cpus
- * simultaneously. A failure obtaining the lock means
- * tx_ring is currently being cleaned anyway. */
- if (spin_trylock(&adapter->tx_queue_lock)) {
- tx_cleaned = e1000_clean_tx_irq(adapter);
- spin_unlock(&adapter->tx_queue_lock);
- }
+ if (adapter->msix_entries &&
+ !(adapter->rx_ring->ims_val & adapter->tx_ring->ims_val))
+ goto clean_rx;
+
+ tx_cleaned = e1000_clean_tx_irq(adapter);
+clean_rx:
adapter->clean_rx(adapter, &work_done, budget);
- if (tx_cleaned)
+ if (!tx_cleaned)
work_done = budget;
/* If budget not fully consumed, exit the polling mode */
if (work_done < budget) {
if (adapter->itr_setting & 3)
e1000_set_itr(adapter);
- netif_rx_complete(poll_dev, napi);
- e1000_irq_enable(adapter);
+ napi_complete(napi);
+ if (!test_bit(__E1000_DOWN, &adapter->state)) {
+ if (adapter->msix_entries)
+ ew32(IMS, adapter->rx_ring->ims_val);
+ else
+ e1000_irq_enable(adapter);
+ }
}
return work_done;
struct e1000_hw *hw = &adapter->hw;
u32 vfta, index;
- e1000_irq_disable(adapter);
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_disable(adapter);
vlan_group_set_device(adapter->vlgrp, vid, NULL);
- e1000_irq_enable(adapter);
+
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_enable(adapter);
if ((adapter->hw.mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
struct e1000_hw *hw = &adapter->hw;
u32 ctrl, rctl;
- e1000_irq_disable(adapter);
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_disable(adapter);
adapter->vlgrp = grp;
if (grp) {
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);
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,
}
}
- e1000_irq_enable(adapter);
+ if (!test_bit(__E1000_DOWN, &adapter->state))
+ e1000_irq_enable(adapter);
}
static void e1000_restore_vlan(struct e1000_adapter *adapter)
manc = er32(MANC);
- /* enable receiving management packets to the host. this will probably
+ /*
+ * enable receiving management packets to the host. this will probably
* generate destination unreachable messages from the host OS, but
- * the packets will be handled on SMBUS */
+ * the packets will be handled on SMBUS
+ */
manc |= E1000_MANC_EN_MNG2HOST;
manc2h = er32(MANC2H);
#define E1000_MNG2HOST_PORT_623 (1 << 5)
/* Set the Tx Interrupt Delay register */
ew32(TIDV, adapter->tx_int_delay);
- /* tx irq moderation */
+ /* Tx irq moderation */
ew32(TADV, adapter->tx_abs_int_delay);
/* Program the Transmit Control Register */
(E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT);
if (adapter->flags & FLAG_TARC_SPEED_MODE_BIT) {
- tarc = er32(TARC0);
- /* set the speed mode bit, we'll clear it if we're not at
- * gigabit link later */
+ tarc = er32(TARC(0));
+ /*
+ * set the speed mode bit, we'll clear it if we're not at
+ * gigabit link later
+ */
#define SPEED_MODE_BIT (1 << 21)
tarc |= SPEED_MODE_BIT;
- ew32(TARC0, tarc);
+ ew32(TARC(0), tarc);
}
/* errata: program both queues to unweighted RR */
if (adapter->flags & FLAG_TARC_SET_BIT_ZERO) {
- tarc = er32(TARC0);
+ tarc = er32(TARC(0));
tarc |= 1;
- ew32(TARC0, tarc);
- tarc = er32(TARC1);
+ ew32(TARC(0), tarc);
+ tarc = er32(TARC(1));
tarc |= 1;
- ew32(TARC1, tarc);
+ ew32(TARC(1), tarc);
}
e1000e_config_collision_dist(hw);
else
rctl |= E1000_RCTL_LPE;
- /* Enable hardware CRC frame stripping */
- rctl |= E1000_RCTL_SECRC;
+ /* Some systems expect that the CRC is included in SMBUS traffic. The
+ * hardware strips the CRC before sending to both SMBUS (BMC) and to
+ * host memory when this is enabled
+ */
+ if (adapter->flags2 & FLAG2_CRC_STRIPPING)
+ rctl |= E1000_RCTL_SECRC;
/* Setup buffer sizes */
rctl &= ~E1000_RCTL_SZ_4096;
* a lot of memory, since we allocate 3 pages at all times
* per packet.
*/
- adapter->rx_ps_pages = 0;
pages = PAGE_USE_COUNT(adapter->netdev->mtu);
- if ((pages <= 3) && (PAGE_SIZE <= 16384) && (rctl & E1000_RCTL_LPE))
+ if (!(adapter->flags & FLAG_IS_ICH) && (pages <= 3) &&
+ (PAGE_SIZE <= 16384) && (rctl & E1000_RCTL_LPE))
adapter->rx_ps_pages = pages;
+ else
+ adapter->rx_ps_pages = 0;
if (adapter->rx_ps_pages) {
/* Configure extra packet-split registers */
rfctl = er32(RFCTL);
rfctl |= E1000_RFCTL_EXTEN;
- /* disable packet split support for IPv6 extension headers,
- * because some malformed IPv6 headers can hang the RX */
+ /*
+ * disable packet split support for IPv6 extension headers,
+ * because some malformed IPv6 headers can hang the Rx
+ */
rfctl |= (E1000_RFCTL_IPV6_EX_DIS |
E1000_RFCTL_NEW_IPV6_EXT_DIS);
}
ew32(RCTL, rctl);
+ /* just started the receive unit, no need to restart */
+ adapter->flags &= ~FLAG_RX_RESTART_NOW;
}
/**
sizeof(union e1000_rx_desc_packet_split);
adapter->clean_rx = e1000_clean_rx_irq_ps;
adapter->alloc_rx_buf = e1000_alloc_rx_buffers_ps;
+ } else if (adapter->netdev->mtu > ETH_FRAME_LEN + ETH_FCS_LEN) {
+ rdlen = rx_ring->count * sizeof(struct e1000_rx_desc);
+ adapter->clean_rx = e1000_clean_jumbo_rx_irq;
+ adapter->alloc_rx_buf = e1000_alloc_jumbo_rx_buffers;
} else {
- rdlen = rx_ring->count *
- sizeof(struct e1000_rx_desc);
+ rdlen = rx_ring->count * sizeof(struct e1000_rx_desc);
adapter->clean_rx = e1000_clean_rx_irq;
adapter->alloc_rx_buf = e1000_alloc_rx_buffers;
}
/* irq moderation */
ew32(RADV, adapter->rx_abs_int_delay);
if (adapter->itr_setting != 0)
- ew32(ITR,
- 1000000000 / (adapter->itr * 256));
+ ew32(ITR, 1000000000 / (adapter->itr * 256));
ctrl_ext = er32(CTRL_EXT);
/* Reset delay timers after every interrupt */
ew32(CTRL_EXT, ctrl_ext);
e1e_flush();
- /* Setup the HW Rx Head and Tail Descriptor Pointers and
- * the Base and Length of the Rx Descriptor Ring */
+ /*
+ * Setup the HW Rx Head and Tail Descriptor Pointers and
+ * the Base and Length of the Rx Descriptor Ring
+ */
rdba = rx_ring->dma;
ew32(RDBAL, (rdba & DMA_32BIT_MASK));
ew32(RDBAH, (rdba >> 32));
if (adapter->flags & FLAG_RX_CSUM_ENABLED) {
rxcsum |= E1000_RXCSUM_TUOFL;
- /* IPv4 payload checksum for UDP fragments must be
- * used in conjunction with packet-split. */
+ /*
+ * IPv4 payload checksum for UDP fragments must be
+ * used in conjunction with packet-split.
+ */
if (adapter->rx_ps_pages)
rxcsum |= E1000_RXCSUM_IPPCSE;
} else {
}
ew32(RXCSUM, rxcsum);
- /* Enable early receives on supported devices, only takes effect when
+ /*
+ * Enable early receives on supported devices, only takes effect when
* packet size is equal or larger than the specified value (in 8 byte
- * units), e.g. using jumbo frames when setting to E1000_ERT_2048 */
+ * units), e.g. using jumbo frames when setting to E1000_ERT_2048
+ */
if ((adapter->flags & FLAG_HAS_ERT) &&
- (adapter->netdev->mtu > ETH_DATA_LEN))
- ew32(ERT, E1000_ERT_2048);
+ (adapter->netdev->mtu > ETH_DATA_LEN)) {
+ u32 rxdctl = er32(RXDCTL(0));
+ ew32(RXDCTL(0), rxdctl | 0x3);
+ ew32(ERT, E1000_ERT_2048 | (1 << 13));
+ /*
+ * With jumbo frames and early-receive enabled, excessive
+ * C4->C2 latencies result in dropped transactions.
+ */
+ pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY,
+ e1000e_driver_name, 55);
+ } else {
+ pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY,
+ e1000e_driver_name,
+ PM_QOS_DEFAULT_VALUE);
+ }
/* Enable Receives */
ew32(RCTL, rctl);
}
/**
- * e1000_mc_addr_list_update - Update Multicast addresses
+ * e1000_update_mc_addr_list - Update Multicast addresses
* @hw: pointer to the HW structure
* @mc_addr_list: array of multicast addresses to program
* @mc_addr_count: number of multicast addresses to program
* exists and all implementations are handled in the generic version of this
* function.
**/
-static void e1000_mc_addr_list_update(struct e1000_hw *hw, u8 *mc_addr_list,
- u32 mc_addr_count, u32 rar_used_count,
- u32 rar_count)
+static void e1000_update_mc_addr_list(struct e1000_hw *hw, u8 *mc_addr_list,
+ u32 mc_addr_count, u32 rar_used_count,
+ u32 rar_count)
{
- hw->mac.ops.mc_addr_list_update(hw, mc_addr_list, mc_addr_count,
+ hw->mac.ops.update_mc_addr_list(hw, mc_addr_list, mc_addr_count,
rar_used_count, rar_count);
}
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);
mc_ptr = mc_ptr->next;
}
- e1000_mc_addr_list_update(hw, mta_list, i, 1,
+ e1000_update_mc_addr_list(hw, mta_list, i, 1,
mac->rar_entry_count);
kfree(mta_list);
} else {
* if we're called from probe, we might not have
* anything to do here, so clear out the list
*/
- e1000_mc_addr_list_update(hw, NULL, 0, 1,
- mac->rar_entry_count);
+ e1000_update_mc_addr_list(hw, NULL, 0, 1, mac->rar_entry_count);
}
}
/**
- * e1000_configure - configure the hardware for RX and TX
+ * e1000_configure - configure the hardware for Rx and Tx
* @adapter: private board structure
**/
static void e1000_configure(struct e1000_adapter *adapter)
e1000_configure_tx(adapter);
e1000_setup_rctl(adapter);
e1000_configure_rx(adapter);
- adapter->alloc_rx_buf(adapter,
- e1000_desc_unused(adapter->rx_ring));
+ adapter->alloc_rx_buf(adapter, e1000_desc_unused(adapter->rx_ring));
}
/**
u16 mii_reg = 0;
/* Just clear the power down bit to wake the phy back up */
- if (adapter->hw.media_type == e1000_media_type_copper) {
- /* according to the manual, the phy will retain its
- * settings across a power-down/up cycle */
+ if (adapter->hw.phy.media_type == e1000_media_type_copper) {
+ /*
+ * According to the manual, the phy will retain its
+ * settings across a power-down/up cycle
+ */
e1e_rphy(&adapter->hw, PHY_CONTROL, &mii_reg);
mii_reg &= ~MII_CR_POWER_DOWN;
e1e_wphy(&adapter->hw, PHY_CONTROL, mii_reg);
return;
/* non-copper PHY? */
- if (adapter->hw.media_type != e1000_media_type_copper)
+ if (adapter->hw.phy.media_type != e1000_media_type_copper)
return;
/* reset is blocked because of a SoL/IDER session */
- if (e1000e_check_mng_mode(hw) ||
- e1000_check_reset_block(hw))
+ if (e1000e_check_mng_mode(hw) || e1000_check_reset_block(hw))
return;
/* manageability (AMT) is enabled */
* This function boots the hardware and enables some settings that
* require a configuration cycle of the hardware - those cannot be
* set/changed during runtime. After reset the device needs to be
- * properly configured for rx, tx etc.
+ * properly configured for Rx, Tx etc.
*/
void e1000e_reset(struct e1000_adapter *adapter)
{
struct e1000_mac_info *mac = &adapter->hw.mac;
+ struct e1000_fc_info *fc = &adapter->hw.fc;
struct e1000_hw *hw = &adapter->hw;
u32 tx_space, min_tx_space, min_rx_space;
- u32 pba;
+ u32 pba = adapter->pba;
u16 hwm;
- ew32(PBA, adapter->pba);
+ /* reset Packet Buffer Allocation to default */
+ ew32(PBA, pba);
- if (mac->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN ) {
- /* To maintain wire speed transmits, the Tx FIFO should be
+ if (adapter->max_frame_size > ETH_FRAME_LEN + ETH_FCS_LEN) {
+ /*
+ * To maintain wire speed transmits, the Tx FIFO should be
* large enough to accommodate two full transmit packets,
* rounded up to the next 1KB and expressed in KB. Likewise,
* the Rx FIFO should be large enough to accommodate at least
* one full receive packet and is similarly rounded up and
- * expressed in KB. */
+ * expressed in KB.
+ */
pba = er32(PBA);
/* upper 16 bits has Tx packet buffer allocation size in KB */
tx_space = pba >> 16;
/* lower 16 bits has Rx packet buffer allocation size in KB */
pba &= 0xffff;
- /* the tx fifo also stores 16 bytes of information about the tx
- * but don't include ethernet FCS because hardware appends it */
- min_tx_space = (mac->max_frame_size +
+ /*
+ * the Tx fifo also stores 16 bytes of information about the tx
+ * but don't include ethernet FCS because hardware appends it
+ */
+ min_tx_space = (adapter->max_frame_size +
sizeof(struct e1000_tx_desc) -
ETH_FCS_LEN) * 2;
min_tx_space = ALIGN(min_tx_space, 1024);
min_tx_space >>= 10;
/* software strips receive CRC, so leave room for it */
- min_rx_space = mac->max_frame_size;
+ min_rx_space = adapter->max_frame_size;
min_rx_space = ALIGN(min_rx_space, 1024);
min_rx_space >>= 10;
- /* If current Tx allocation is less than the min Tx FIFO size,
+ /*
+ * If current Tx allocation is less than the min Tx FIFO size,
* and the min Tx FIFO size is less than the current Rx FIFO
- * allocation, take space away from current Rx allocation */
+ * allocation, take space away from current Rx allocation
+ */
if ((tx_space < min_tx_space) &&
((min_tx_space - tx_space) < pba)) {
pba -= min_tx_space - tx_space;
- /* if short on rx space, rx wins and must trump tx
- * adjustment or use Early Receive if available */
+ /*
+ * if short on Rx space, Rx wins and must trump tx
+ * adjustment or use Early Receive if available
+ */
if ((pba < min_rx_space) &&
(!(adapter->flags & FLAG_HAS_ERT)))
/* ERT enabled in e1000_configure_rx */
}
- /* flow control settings */
- /* The high water mark must be low enough to fit one full frame
+ /*
+ * flow control settings
+ *
+ * The high water mark must be low enough to fit one full frame
* (or the size used for early receive) above it in the Rx FIFO.
* Set it to the lower of:
* - 90% of the Rx FIFO size, and
* - the full Rx FIFO size minus the early receive size (for parts
* with ERT support assuming ERT set to E1000_ERT_2048), or
- * - the full Rx FIFO size minus one full frame */
+ * - the full Rx FIFO size minus one full frame
+ */
if (adapter->flags & FLAG_HAS_ERT)
- hwm = min(((adapter->pba << 10) * 9 / 10),
- ((adapter->pba << 10) - (E1000_ERT_2048 << 3)));
+ hwm = min(((pba << 10) * 9 / 10),
+ ((pba << 10) - (E1000_ERT_2048 << 3)));
else
- hwm = min(((adapter->pba << 10) * 9 / 10),
- ((adapter->pba << 10) - mac->max_frame_size));
+ hwm = min(((pba << 10) * 9 / 10),
+ ((pba << 10) - adapter->max_frame_size));
- mac->fc_high_water = hwm & 0xFFF8; /* 8-byte granularity */
- mac->fc_low_water = mac->fc_high_water - 8;
+ fc->high_water = hwm & 0xFFF8; /* 8-byte granularity */
+ fc->low_water = fc->high_water - 8;
if (adapter->flags & FLAG_DISABLE_FC_PAUSE_TIME)
- mac->fc_pause_time = 0xFFFF;
+ fc->pause_time = 0xFFFF;
else
- mac->fc_pause_time = E1000_FC_PAUSE_TIME;
- mac->fc = mac->original_fc;
+ fc->pause_time = E1000_FC_PAUSE_TIME;
+ fc->send_xon = 1;
+ fc->current_mode = fc->requested_mode;
/* Allow time for pending master requests to run */
mac->ops.reset_hw(hw);
+
+ /*
+ * For parts with AMT enabled, let the firmware know
+ * that the network interface is in control
+ */
+ 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);
if (!(adapter->flags & FLAG_SMART_POWER_DOWN)) {
u16 phy_data = 0;
- /* speed up time to link by disabling smart power down, ignore
+ /*
+ * speed up time to link by disabling smart power down, ignore
* the return value of this function because there is nothing
- * different we would do if it failed */
+ * different we would do if it failed
+ */
e1e_rphy(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data);
phy_data &= ~IGP02E1000_PM_SPD;
e1e_wphy(hw, IGP02E1000_PHY_POWER_MGMT, phy_data);
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 */
struct e1000_hw *hw = &adapter->hw;
u32 tctl, rctl;
- /* signal that we're down so the interrupt handler does not
- * reschedule our watchdog timer */
+ /*
+ * signal that we're down so the interrupt handler does not
+ * reschedule our watchdog timer
+ */
set_bit(__E1000_DOWN, &adapter->state);
/* disable receives in the hardware */
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);
msleep(10);
napi_disable(&adapter->napi);
- atomic_set(&adapter->irq_sem, 0);
e1000_irq_disable(adapter);
del_timer_sync(&adapter->watchdog_timer);
adapter->link_speed = 0;
adapter->link_duplex = 0;
- e1000e_reset(adapter);
+ if (!pci_channel_offline(adapter->pdev))
+ e1000e_reset(adapter);
e1000_clean_tx_ring(adapter);
e1000_clean_rx_ring(adapter);
**/
static int __devinit e1000_sw_init(struct e1000_adapter *adapter)
{
- struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN;
adapter->rx_ps_bsize0 = 128;
- hw->mac.max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
- hw->mac.min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
+ 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;
-
- adapter->rx_ring = kzalloc(sizeof(struct e1000_ring), GFP_KERNEL);
- if (!adapter->rx_ring)
- goto err;
+ e1000e_set_interrupt_capability(adapter);
- spin_lock_init(&adapter->tx_queue_lock);
+ if (e1000_alloc_queues(adapter))
+ return -ENOMEM;
/* Explicitly disable IRQ since the NIC can be in any state. */
- atomic_set(&adapter->irq_sem, 0);
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;
}
/**
E1000_MNG_DHCP_COOKIE_STATUS_VLAN))
e1000_update_mng_vlan(adapter);
- /* 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 AMT is enabled, let the firmware know that the network
+ * interface is now open
+ */
+ if (adapter->flags & FLAG_HAS_AMT)
e1000_get_hw_control(adapter);
- /* before we allocate an interrupt, we must be ready to handle it.
+ /*
+ * before we allocate an interrupt, we must be ready to handle it.
* Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
* as soon as we call pci_request_irq, so we have to setup our
- * clean_rx handler before we do so. */
+ * clean_rx handler before we do so.
+ */
e1000_configure(adapter);
err = e1000_request_irq(adapter);
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);
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);
e1000e_free_tx_resources(adapter);
e1000e_free_rx_resources(adapter);
- /* kill manageability vlan ID if supported, but not if a vlan with
- * the same ID is registered on the host OS (let 8021q kill it) */
+ /*
+ * kill manageability vlan ID if supported, but not if a vlan with
+ * the same ID is registered on the host OS (let 8021q kill it)
+ */
if ((adapter->hw.mng_cookie.status &
E1000_MNG_DHCP_COOKIE_STATUS_VLAN) &&
!(adapter->vlgrp &&
vlan_group_get_device(adapter->vlgrp, adapter->mng_vlan_id)))
e1000_vlan_rx_kill_vid(netdev, adapter->mng_vlan_id);
- /* 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 AMT is enabled, let the firmware know that the network
+ * interface is now closed
+ */
+ if (adapter->flags & FLAG_HAS_AMT)
e1000_release_hw_control(adapter);
return 0;
/* activate the work around */
e1000e_set_laa_state_82571(&adapter->hw, 1);
- /* Hold a copy of the LAA in RAR[14] This is done so that
+ /*
+ * Hold a copy of the LAA in RAR[14] This is done so that
* between the time RAR[0] gets clobbered and the time it
* gets fixed (in e1000_watchdog), the actual LAA is in one
* of the RARs and no incoming packets directed to this port
* are dropped. Eventually the LAA will be in RAR[0] and
- * RAR[14] */
+ * RAR[14]
+ */
e1000e_rar_set(&adapter->hw,
adapter->hw.mac.addr,
adapter->hw.mac.rar_entry_count - 1);
return 0;
}
-/* Need to wait a few seconds after link up to get diagnostic information from
- * the phy */
+/**
+ * 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
+ */
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);
}
/**
{
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
if (adapter->link_speed == 0)
return;
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
- */
+ return;
adapter->stats.crcerrs += er32(CRCERRS);
adapter->stats.gprc += er32(GPRC);
- adapter->stats.gorcl += er32(GORCL);
- adapter->stats.gorch += er32(GORCH);
+ adapter->stats.gorc += er32(GORCL);
+ er32(GORCH); /* Clear gorc */
adapter->stats.bprc += er32(BPRC);
adapter->stats.mprc += er32(MPRC);
adapter->stats.roc += er32(ROC);
- if (adapter->flags & FLAG_HAS_STATS_PTC_PRC) {
- adapter->stats.prc64 += er32(PRC64);
- adapter->stats.prc127 += er32(PRC127);
- adapter->stats.prc255 += er32(PRC255);
- adapter->stats.prc511 += er32(PRC511);
- adapter->stats.prc1023 += er32(PRC1023);
- adapter->stats.prc1522 += er32(PRC1522);
- adapter->stats.symerrs += er32(SYMERRS);
- adapter->stats.sec += er32(SEC);
- }
-
adapter->stats.mpc += er32(MPC);
adapter->stats.scc += er32(SCC);
adapter->stats.ecol += er32(ECOL);
adapter->stats.mcc += er32(MCC);
adapter->stats.latecol += er32(LATECOL);
adapter->stats.dc += er32(DC);
- adapter->stats.rlec += er32(RLEC);
adapter->stats.xonrxc += er32(XONRXC);
adapter->stats.xontxc += er32(XONTXC);
adapter->stats.xoffrxc += er32(XOFFRXC);
adapter->stats.xofftxc += er32(XOFFTXC);
- adapter->stats.fcruc += er32(FCRUC);
adapter->stats.gptc += er32(GPTC);
- adapter->stats.gotcl += er32(GOTCL);
- adapter->stats.gotch += er32(GOTCH);
+ adapter->stats.gotc += er32(GOTCL);
+ er32(GOTCH); /* Clear gotc */
adapter->stats.rnbc += er32(RNBC);
adapter->stats.ruc += er32(RUC);
- adapter->stats.rfc += er32(RFC);
- adapter->stats.rjc += er32(RJC);
- adapter->stats.torl += er32(TORL);
- adapter->stats.torh += er32(TORH);
- adapter->stats.totl += er32(TOTL);
- adapter->stats.toth += er32(TOTH);
- adapter->stats.tpr += er32(TPR);
-
- if (adapter->flags & FLAG_HAS_STATS_PTC_PRC) {
- adapter->stats.ptc64 += er32(PTC64);
- adapter->stats.ptc127 += er32(PTC127);
- adapter->stats.ptc255 += er32(PTC255);
- adapter->stats.ptc511 += er32(PTC511);
- adapter->stats.ptc1023 += er32(PTC1023);
- adapter->stats.ptc1522 += er32(PTC1522);
- }
adapter->stats.mptc += er32(MPTC);
adapter->stats.bptc += er32(BPTC);
adapter->stats.algnerrc += er32(ALGNERRC);
adapter->stats.rxerrc += er32(RXERRC);
- adapter->stats.tncrs += er32(TNCRS);
+ if ((hw->mac.type != e1000_82574) && (hw->mac.type != e1000_82583))
+ adapter->stats.tncrs += er32(TNCRS);
adapter->stats.cexterr += er32(CEXTERR);
adapter->stats.tsctc += er32(TSCTC);
adapter->stats.tsctfc += er32(TSCTFC);
- adapter->stats.iac += er32(IAC);
-
- if (adapter->flags & FLAG_HAS_STATS_ICR_ICT) {
- adapter->stats.icrxoc += er32(ICRXOC);
- adapter->stats.icrxptc += er32(ICRXPTC);
- adapter->stats.icrxatc += er32(ICRXATC);
- adapter->stats.ictxptc += er32(ICTXPTC);
- adapter->stats.ictxatc += er32(ICTXATC);
- adapter->stats.ictxqec += er32(ICTXQEC);
- adapter->stats.ictxqmtc += er32(ICTXQMTC);
- adapter->stats.icrxdmtc += er32(ICRXDMTC);
- }
-
/* Fill out the OS statistics structure */
adapter->net_stats.multicast = adapter->stats.mprc;
adapter->net_stats.collisions = adapter->stats.colc;
/* Rx Errors */
- /* RLEC on some newer hardware can be incorrect so build
- * our own version based on RUC and ROC */
+ /*
+ * RLEC on some newer hardware can be incorrect so build
+ * our own version based on RUC and ROC
+ */
adapter->net_stats.rx_errors = adapter->stats.rxerrc +
adapter->stats.crcerrs + adapter->stats.algnerrc +
adapter->stats.ruc + adapter->stats.roc +
/* Tx Dropped needs to be maintained elsewhere */
- /* Phy Stats */
- if (hw->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);
+/**
+ * e1000_phy_read_status - Update the PHY register status snapshot
+ * @adapter: board private structure
+ **/
+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;
+
+ if ((er32(STATUS) & E1000_STATUS_LU) &&
+ (adapter->hw.phy.media_type == e1000_media_type_copper)) {
+ ret_val = e1e_rphy(hw, PHY_CONTROL, &phy->bmcr);
+ ret_val |= e1e_rphy(hw, PHY_STATUS, &phy->bmsr);
+ ret_val |= e1e_rphy(hw, PHY_AUTONEG_ADV, &phy->advertise);
+ ret_val |= e1e_rphy(hw, PHY_LP_ABILITY, &phy->lpa);
+ ret_val |= e1e_rphy(hw, PHY_AUTONEG_EXP, &phy->expansion);
+ ret_val |= e1e_rphy(hw, PHY_1000T_CTRL, &phy->ctrl1000);
+ ret_val |= e1e_rphy(hw, PHY_1000T_STATUS, &phy->stat1000);
+ ret_val |= e1e_rphy(hw, PHY_EXT_STATUS, &phy->estatus);
+ if (ret_val)
+ e_warn("Error reading PHY register\n");
+ } else {
+ /*
+ * Do not read PHY registers if link is not up
+ * Set values to typical power-on defaults
+ */
+ phy->bmcr = (BMCR_SPEED1000 | BMCR_ANENABLE | BMCR_FULLDPLX);
+ phy->bmsr = (BMSR_100FULL | BMSR_100HALF | BMSR_10FULL |
+ BMSR_10HALF | BMSR_ESTATEN | BMSR_ANEGCAPABLE |
+ BMSR_ERCAP);
+ phy->advertise = (ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP |
+ ADVERTISE_ALL | ADVERTISE_CSMA);
+ phy->lpa = 0;
+ phy->expansion = EXPANSION_ENABLENPAGE;
+ phy->ctrl1000 = ADVERTISE_1000FULL;
+ phy->stat1000 = 0;
+ phy->estatus = (ESTATUS_1000_TFULL | ESTATUS_1000_THALF);
+ }
}
static void e1000_print_link_info(struct e1000_adapter *adapter)
{
- struct net_device *netdev = adapter->netdev;
struct e1000_hw *hw = &adapter->hw;
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" )));
+ /* Link status message must follow this format for user tools */
+ printk(KERN_INFO "e1000e: %s NIC Link is Up %d Mbps %s, "
+ "Flow Control: %s\n",
+ adapter->netdev->name,
+ 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" )));
+}
+
+bool e1000_has_link(struct e1000_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ bool link_active = 0;
+ s32 ret_val = 0;
+
+ /*
+ * get_link_status is set on LSC (link status) interrupt or
+ * Rx sequence error interrupt. get_link_status will stay
+ * false until the check_for_link establishes link
+ * for copper adapters ONLY
+ */
+ switch (hw->phy.media_type) {
+ case e1000_media_type_copper:
+ if (hw->mac.get_link_status) {
+ ret_val = hw->mac.ops.check_for_link(hw);
+ link_active = !hw->mac.get_link_status;
+ } else {
+ link_active = 1;
+ }
+ break;
+ case e1000_media_type_fiber:
+ ret_val = hw->mac.ops.check_for_link(hw);
+ link_active = !!(er32(STATUS) & E1000_STATUS_LU);
+ break;
+ case e1000_media_type_internal_serdes:
+ ret_val = hw->mac.ops.check_for_link(hw);
+ link_active = adapter->hw.mac.serdes_has_link;
+ break;
+ default:
+ case e1000_media_type_unknown:
+ break;
+ }
+
+ 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() */
+ e_info("Gigabit has been disabled, downgrading speed\n");
+ }
+
+ return link_active;
+}
+
+static void e1000e_enable_receives(struct e1000_adapter *adapter)
+{
+ /* make sure the receive unit is started */
+ if ((adapter->flags & FLAG_RX_NEEDS_RESTART) &&
+ (adapter->flags & FLAG_RX_RESTART_NOW)) {
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rctl = er32(RCTL);
+ ew32(RCTL, rctl | E1000_RCTL_EN);
+ adapter->flags &= ~FLAG_RX_RESTART_NOW;
+ }
}
/**
{
struct e1000_adapter *adapter = container_of(work,
struct e1000_adapter, watchdog_task);
-
struct net_device *netdev = adapter->netdev;
struct e1000_mac_info *mac = &adapter->hw.mac;
+ struct e1000_phy_info *phy = &adapter->hw.phy;
struct e1000_ring *tx_ring = adapter->tx_ring;
struct e1000_hw *hw = &adapter->hw;
u32 link, tctl;
- s32 ret_val;
int tx_pending = 0;
- if ((netif_carrier_ok(netdev)) &&
- (er32(STATUS) & E1000_STATUS_LU))
+ link = e1000_has_link(adapter);
+ if ((netif_carrier_ok(netdev)) && link) {
+ e1000e_enable_receives(adapter);
goto link_up;
-
- ret_val = mac->ops.check_for_link(hw);
- if ((ret_val == E1000_ERR_PHY) &&
- (adapter->hw.phy.type == e1000_phy_igp_3) &&
- (er32(CTRL) &
- E1000_PHY_CTRL_GBE_DISABLE)) {
- /* See e1000_kmrn_lock_loss_workaround_ich8lan() */
- ndev_info(netdev,
- "Gigabit has been disabled, downgrading speed\n");
}
if ((e1000e_enable_tx_pkt_filtering(hw)) &&
(adapter->mng_vlan_id != adapter->hw.mng_cookie.vlan_id))
e1000_update_mng_vlan(adapter);
- if ((adapter->hw.media_type == e1000_media_type_internal_serdes) &&
- !(er32(TXCW) & E1000_TXCW_ANE))
- link = adapter->hw.mac.serdes_has_link;
- else
- link = er32(STATUS) & E1000_STATUS_LU;
-
if (link) {
if (!netif_carrier_ok(netdev)) {
bool txb2b = 1;
+ /* update snapshot of PHY registers on LSC */
+ e1000_phy_read_status(adapter);
mac->ops.get_link_up_info(&adapter->hw,
&adapter->link_speed,
&adapter->link_duplex);
e1000_print_link_info(adapter);
- /* tweak tx_queue_len according to speed/duplex
- * and adjust the timeout factor */
+ /*
+ * 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
+ */
netdev->tx_queue_len = adapter->tx_queue_len;
adapter->tx_timeout_factor = 1;
switch (adapter->link_speed) {
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;
break;
}
- /* workaround: re-program speed mode bit after
- * link-up event */
+ /*
+ * workaround: re-program speed mode bit after
+ * link-up event
+ */
if ((adapter->flags & FLAG_TARC_SPEED_MODE_BIT) &&
!txb2b) {
u32 tarc0;
- tarc0 = er32(TARC0);
+ tarc0 = er32(TARC(0));
tarc0 &= ~SPEED_MODE_BIT;
- ew32(TARC0, tarc0);
+ ew32(TARC(0), tarc0);
}
- /* disable TSO for pcie and 10/100 speeds, to avoid
- * some hardware issues */
+ /*
+ * disable TSO for pcie and 10/100 speeds, to avoid
+ * some hardware issues
+ */
if (!(adapter->flags & FLAG_TSO_FORCE)) {
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;
}
}
- /* enable transmits in the hardware, need to do this
- * after setting TARC0 */
+ /*
+ * enable transmits in the hardware, need to do this
+ * after setting TARC(0)
+ */
tctl = er32(TCTL);
tctl |= E1000_TCTL_EN;
ew32(TCTL, tctl);
+ /*
+ * Perform any post-link-up configuration before
+ * reporting link up.
+ */
+ if (phy->ops.cfg_on_link_up)
+ phy->ops.cfg_on_link_up(hw);
+
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,
round_jiffies(jiffies + 2 * HZ));
- } else {
- /* make sure the receive unit is started */
- if (adapter->flags & FLAG_RX_NEEDS_RESTART) {
- u32 rctl = er32(RCTL);
- ew32(RCTL, rctl |
- E1000_RCTL_EN);
- }
}
} else {
if (netif_carrier_ok(netdev)) {
adapter->link_speed = 0;
adapter->link_duplex = 0;
- ndev_info(netdev, "Link is Down\n");
+ /* Link status message must follow this format */
+ printk(KERN_INFO "e1000e: %s NIC Link is Down\n",
+ adapter->netdev->name);
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));
mac->collision_delta = adapter->stats.colc - adapter->colc_old;
adapter->colc_old = adapter->stats.colc;
- adapter->gorcl = adapter->stats.gorcl - adapter->gorcl_old;
- adapter->gorcl_old = adapter->stats.gorcl;
- adapter->gotcl = adapter->stats.gotcl - adapter->gotcl_old;
- adapter->gotcl_old = adapter->stats.gotcl;
+ adapter->gorc = adapter->stats.gorc - adapter->gorc_old;
+ adapter->gorc_old = adapter->stats.gorc;
+ adapter->gotc = adapter->stats.gotc - adapter->gotc_old;
+ adapter->gotc_old = adapter->stats.gotc;
e1000e_update_adaptive(&adapter->hw);
tx_pending = (e1000_desc_unused(tx_ring) + 1 <
tx_ring->count);
if (tx_pending) {
- /* We've lost link, so the controller stops DMA,
+ /*
+ * We've lost link, so the controller stops DMA,
* but we've got queued Tx work that's never going
* to get done, so reset controller to flush Tx.
- * (Do the reset outside of interrupt context). */
+ * (Do the reset outside of interrupt context).
+ */
adapter->tx_timeout_count++;
schedule_work(&adapter->reset_task);
}
}
- /* Cause software interrupt to ensure rx ring is cleaned */
- ew32(ICS, E1000_ICS_RXDMT0);
+ /* Cause software interrupt to ensure Rx ring is cleaned */
+ 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;
- /* With 82571 controllers, LAA may be overwritten due to controller
- * reset from the other port. Set the appropriate LAA in RAR[0] */
+ /*
+ * With 82571 controllers, LAA may be overwritten due to controller
+ * reset from the other port. Set the appropriate LAA in RAR[0]
+ */
if (e1000e_get_laa_state_82571(hw))
e1000e_rar_set(hw, adapter->hw.mac.addr, 0);
struct e1000_buffer *buffer_info;
unsigned int i;
u8 css;
+ u32 cmd_len = E1000_TXD_CMD_DEXT;
+ __be16 protocol;
- 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);
+ if (skb->ip_summed != CHECKSUM_PARTIAL)
+ return 0;
- 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->protocol == cpu_to_be16(ETH_P_8021Q))
+ protocol = vlan_eth_hdr(skb)->h_vlan_encapsulated_proto;
+ else
+ protocol = skb->protocol;
- buffer_info->time_stamp = jiffies;
- buffer_info->next_to_watch = i;
+ switch (protocol) {
+ case cpu_to_be16(ETH_P_IP):
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+ cmd_len |= E1000_TXD_CMD_TCP;
+ break;
+ case cpu_to_be16(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",
+ be16_to_cpu(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
{
struct e1000_ring *tx_ring = adapter->tx_ring;
struct e1000_buffer *buffer_info;
- unsigned int len = skb->len - skb->data_len;
- unsigned int offset = 0, size, count = 0, i;
+ unsigned int len = skb_headlen(skb);
+ unsigned int offset, size, count = 0, i;
unsigned int f;
+ dma_addr_t *map;
i = tx_ring->next_to_use;
+ if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) {
+ dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
+ adapter->tx_dma_failed++;
+ return 0;
+ }
+
+ map = skb_shinfo(skb)->dma_maps;
+ offset = 0;
+
while (len) {
buffer_info = &tx_ring->buffer_info[i];
size = min(len, max_per_txd);
- /* Workaround for premature desc write-backs
- * in TSO mode. Append 4-byte sentinel desc */
- if (mss && !nr_frags && size == len && size > 8)
- size -= 4;
-
buffer_info->length = size;
- /* set time_stamp *before* dma to help avoid a possible race */
buffer_info->time_stamp = jiffies;
- buffer_info->dma =
- pci_map_single(adapter->pdev,
- skb->data + offset,
- size,
- PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(buffer_info->dma)) {
- dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
- adapter->tx_dma_failed++;
- return -1;
- }
buffer_info->next_to_watch = i;
+ buffer_info->dma = map[0] + offset;
+ count++;
len -= size;
offset += size;
- count++;
- i++;
- if (i == tx_ring->count)
- i = 0;
+
+ if (len) {
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ }
}
for (f = 0; f < nr_frags; f++) {
frag = &skb_shinfo(skb)->frags[f];
len = frag->size;
- offset = frag->page_offset;
+ offset = 0;
while (len) {
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+
buffer_info = &tx_ring->buffer_info[i];
size = min(len, max_per_txd);
- /* Workaround for premature desc write-backs
- * in TSO mode. Append 4-byte sentinel desc */
- if (mss && f == (nr_frags-1) && size == len && size > 8)
- size -= 4;
buffer_info->length = size;
buffer_info->time_stamp = jiffies;
- buffer_info->dma =
- pci_map_page(adapter->pdev,
- frag->page,
- offset,
- size,
- PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(buffer_info->dma)) {
- dev_err(&adapter->pdev->dev,
- "TX DMA page map failed\n");
- adapter->tx_dma_failed++;
- return -1;
- }
-
buffer_info->next_to_watch = i;
+ buffer_info->dma = map[f + 1] + offset;
len -= size;
offset += size;
count++;
-
- i++;
- if (i == tx_ring->count)
- i = 0;
}
}
- if (i == 0)
- i = tx_ring->count - 1;
- else
- i--;
-
tx_ring->buffer_info[i].skb = skb;
tx_ring->buffer_info[first].next_to_watch = i;
tx_desc->lower.data |= cpu_to_le32(adapter->txd_cmd);
- /* Force memory writes to complete before letting h/w
+ /*
+ * Force memory writes to complete before letting h/w
* know there are new descriptors to fetch. (Only
* applicable for weak-ordered memory model archs,
- * such as IA-64). */
+ * such as IA-64).
+ */
wmb();
tx_ring->next_to_use = i;
writel(i, adapter->hw.hw_addr + tx_ring->tail);
- /* we need this if more than one processor can write to our tail
- * at a time, it synchronizes IO on IA64/Altix systems */
+ /*
+ * we need this if more than one processor can write to our tail
+ * at a time, it synchronizes IO on IA64/Altix systems
+ */
mmiowb();
}
struct e1000_adapter *adapter = netdev_priv(netdev);
netif_stop_queue(netdev);
- /* Herbert's original patch had:
+ /*
+ * Herbert's original patch had:
* smp_mb__after_netif_stop_queue();
- * but since that doesn't exist yet, just open code it. */
+ * but since that doesn't exist yet, just open code it.
+ */
smp_mb();
- /* We need to check again in a case another CPU has just
- * made room available. */
+ /*
+ * We need to check again in a case another CPU has just
+ * made room available.
+ */
if (e1000_desc_unused(adapter->tx_ring) < size)
return -EBUSY;
unsigned int max_txd_pwr = E1000_MAX_TXD_PWR;
unsigned int tx_flags = 0;
unsigned int len = skb->len - skb->data_len;
- unsigned long irq_flags;
unsigned int nr_frags;
unsigned int mss;
int count = 0;
}
mss = skb_shinfo(skb)->gso_size;
- /* The controller does a simple calculation to
+ /*
+ * The controller does a simple calculation to
* make sure there is enough room in the FIFO before
* initiating the DMA for each buffer. The calc is:
* 4 = ceil(buffer len/mss). To make sure we don't
* overrun the FIFO, adjust the max buffer len if mss
- * drops. */
+ * drops.
+ */
if (mss) {
u8 hdr_len;
max_per_txd = min(mss << 2, max_per_txd);
max_txd_pwr = fls(max_per_txd) - 1;
- /* TSO Workaround for 82571/2/3 Controllers -- if skb->data
- * points to just header, pull a few bytes of payload from
- * frags into skb->data */
+ /*
+ * TSO Workaround for 82571/2/3 Controllers -- if skb->data
+ * points to just header, pull a few bytes of payload from
+ * frags into skb->data
+ */
hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
+ /*
+ * we do this workaround for ES2LAN, but it is un-necessary,
+ * avoiding it could save a lot of cycles
+ */
if (skb->data_len && (hdr_len == len)) {
unsigned int pull_size;
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;
}
if (adapter->hw.mac.tx_pkt_filtering)
e1000_transfer_dhcp_info(adapter, skb);
- if (!spin_trylock_irqsave(&adapter->tx_queue_lock, irq_flags))
- /* Collision - tell upper layer to requeue */
- return NETDEV_TX_LOCKED;
-
- /* need: count + 2 desc gap to keep tail from touching
- * head, otherwise try next time */
- if (e1000_maybe_stop_tx(netdev, count + 2)) {
- spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
+ /*
+ * need: count + 2 desc gap to keep tail from touching
+ * head, otherwise try next time
+ */
+ if (e1000_maybe_stop_tx(netdev, count + 2))
return NETDEV_TX_BUSY;
- }
if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
tx_flags |= E1000_TX_FLAGS_VLAN;
tso = e1000_tso(adapter, skb);
if (tso < 0) {
dev_kfree_skb_any(skb);
- spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
return NETDEV_TX_OK;
}
else if (e1000_tx_csum(adapter, skb))
tx_flags |= E1000_TX_FLAGS_CSUM;
- /* Old method was to assume IPv4 packet by default if TSO was enabled.
+ /*
+ * Old method was to assume IPv4 packet by default if TSO was enabled.
* 82571 hardware supports TSO capabilities for IPv6 as well...
- * no longer assume, we must. */
+ * no longer assume, we must.
+ */
if (skb->protocol == htons(ETH_P_IP))
tx_flags |= E1000_TX_FLAGS_IPV4;
+ /* if count is 0 then mapping error has occured */
count = e1000_tx_map(adapter, skb, first, max_per_txd, nr_frags, mss);
- if (count < 0) {
- /* handle pci_map_single() error in e1000_tx_map */
+ if (count) {
+ e1000_tx_queue(adapter, tx_flags, count);
+ netdev->trans_start = jiffies;
+ /* Make sure there is space in the ring for the next send. */
+ e1000_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 2);
+
+ } else {
dev_kfree_skb_any(skb);
- spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
- return NETDEV_TX_OK;
+ tx_ring->buffer_info[first].time_stamp = 0;
+ tx_ring->next_to_use = first;
}
- e1000_tx_queue(adapter, tx_flags, count);
-
- netdev->trans_start = jiffies;
-
- /* Make sure there is space in the ring for the next send. */
- e1000_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 2);
-
- spin_unlock_irqrestore(&adapter->tx_queue_lock, irq_flags);
return NETDEV_TX_OK;
}
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;
}
while (test_and_set_bit(__E1000_RESETTING, &adapter->state))
msleep(1);
/* e1000e_down has a dependency on max_frame_size */
- adapter->hw.mac.max_frame_size = max_frame;
+ adapter->max_frame_size = max_frame;
if (netif_running(netdev))
e1000e_down(adapter);
- /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
+ /*
+ * NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
* means we reserve 2 more, this pushes us to allocate from the next
* larger slab size.
- * i.e. RXBUFFER_2048 --> size-4096 slab */
+ * i.e. RXBUFFER_2048 --> size-4096 slab
+ * However with the new *_jumbo_rx* routines, jumbo receives will use
+ * fragmented skbs
+ */
if (max_frame <= 256)
adapter->rx_buffer_len = 256;
if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) ||
(max_frame == ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN))
adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN
- + ETH_FCS_LEN ;
+ + 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))
{
struct e1000_adapter *adapter = netdev_priv(netdev);
struct mii_ioctl_data *data = if_mii(ifr);
- unsigned long irq_flags;
- if (adapter->hw.media_type != e1000_media_type_copper)
+ if (adapter->hw.phy.media_type != e1000_media_type_copper)
return -EOPNOTSUPP;
switch (cmd) {
case SIOCGMIIREG:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
- spin_lock_irqsave(&adapter->stats_lock, irq_flags);
- if (e1e_rphy(&adapter->hw, data->reg_num & 0x1F,
- &data->val_out)) {
- spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
+ switch (data->reg_num & 0x1F) {
+ case MII_BMCR:
+ data->val_out = adapter->phy_regs.bmcr;
+ break;
+ case MII_BMSR:
+ data->val_out = adapter->phy_regs.bmsr;
+ break;
+ case MII_PHYSID1:
+ data->val_out = (adapter->hw.phy.id >> 16);
+ break;
+ case MII_PHYSID2:
+ data->val_out = (adapter->hw.phy.id & 0xFFFF);
+ break;
+ case MII_ADVERTISE:
+ data->val_out = adapter->phy_regs.advertise;
+ break;
+ case MII_LPA:
+ data->val_out = adapter->phy_regs.lpa;
+ break;
+ case MII_EXPANSION:
+ data->val_out = adapter->phy_regs.expansion;
+ break;
+ case MII_CTRL1000:
+ data->val_out = adapter->phy_regs.ctrl1000;
+ break;
+ case MII_STAT1000:
+ data->val_out = adapter->phy_regs.stat1000;
+ break;
+ case MII_ESTATUS:
+ data->val_out = adapter->phy_regs.estatus;
+ break;
+ default:
return -EIO;
}
- spin_unlock_irqrestore(&adapter->stats_lock, irq_flags);
break;
case SIOCSMIIREG:
default:
e1000e_down(adapter);
e1000_free_irq(adapter);
}
+ e1000e_reset_interrupt_capability(adapter);
retval = pci_save_state(pdev);
if (retval)
E1000_CTRL_EN_PHY_PWR_MGMT;
ew32(CTRL, ctrl);
- if (adapter->hw.media_type == e1000_media_type_fiber ||
- adapter->hw.media_type == e1000_media_type_internal_serdes) {
+ if (adapter->hw.phy.media_type == e1000_media_type_fiber ||
+ adapter->hw.phy.media_type ==
+ e1000_media_type_internal_serdes) {
/* keep the laser running in D3 */
ctrl_ext = er32(CTRL_EXT);
ctrl_ext |= E1000_CTRL_EXT_SDP7_DATA;
ew32(CTRL_EXT, ctrl_ext);
}
+ if (adapter->flags & FLAG_IS_ICH)
+ e1000e_disable_gig_wol_ich8lan(&adapter->hw);
+
/* Allow time for pending master requests to run */
e1000e_disable_pcie_master(&adapter->hw);
if (adapter->hw.phy.type == e1000_phy_igp_3)
e1000e_igp3_phy_powerdown_workaround_ich8lan(&adapter->hw);
- /* Release control of h/w to f/w. If f/w is AMT enabled, this
- * would have already happened in close and is redundant. */
+ /*
+ * Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant.
+ */
e1000_release_hw_control(adapter);
pci_disable_device(pdev);
- pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ /*
+ * The pci-e switch on some quad port adapters will report a
+ * correctable error when the MAC transitions from D0 to D3. To
+ * prevent this we need to mask off the correctable errors on the
+ * downstream port of the pci-e switch.
+ */
+ if (adapter->flags & FLAG_IS_QUAD_PORT) {
+ struct pci_dev *us_dev = pdev->bus->self;
+ int pos = pci_find_capability(us_dev, PCI_CAP_ID_EXP);
+ u16 devctl;
+
+ pci_read_config_word(us_dev, pos + PCI_EXP_DEVCTL, &devctl);
+ pci_write_config_word(us_dev, pos + PCI_EXP_DEVCTL,
+ (devctl & ~PCI_EXP_DEVCTL_CERE));
+
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+
+ pci_write_config_word(us_dev, pos + PCI_EXP_DEVCTL, devctl);
+ } else {
+ pci_set_power_state(pdev, pci_choose_state(pdev, state));
+ }
return 0;
}
static void e1000e_disable_l1aspm(struct pci_dev *pdev)
{
int pos;
- u32 cap;
u16 val;
/*
* active.
*/
pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
- pci_read_config_dword(pdev, pos + PCI_EXP_LNKCAP, &cap);
pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &val);
if (val & 0x2) {
dev_warn(&pdev->dev, "Disabling L1 ASPM\n");
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");
return err;
}
+ /* AER (Advanced Error Reporting) hooks */
+ err = pci_enable_pcie_error_reporting(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "pci_enable_pcie_error_reporting failed "
+ "0x%x\n", err);
+ /* non-fatal, continue */
+ }
+
pci_set_master(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)
netif_device_attach(netdev);
- /* If the controller has AMT, do not set DRV_LOAD until the interface
+ /*
+ * If the controller has AMT, do not set DRV_LOAD until the interface
* 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))
+ * under the control of the driver.
+ */
+ if (!(adapter->flags & FLAG_HAS_AMT))
e1000_get_hw_control(adapter);
return 0;
disable_irq(adapter->pdev->irq);
e1000_intr(adapter->pdev->irq, netdev);
- e1000_clean_tx_irq(adapter);
-
enable_irq(adapter->pdev->irq);
}
#endif
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
struct e1000_hw *hw = &adapter->hw;
+ int err;
+ pci_ers_result_t result;
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;
- }
- pci_set_master(pdev);
+ result = PCI_ERS_RESULT_DISCONNECT;
+ } else {
+ pci_set_master(pdev);
+ pci_restore_state(pdev);
- pci_enable_wake(pdev, PCI_D3hot, 0);
- pci_enable_wake(pdev, PCI_D3cold, 0);
+ pci_enable_wake(pdev, PCI_D3hot, 0);
+ pci_enable_wake(pdev, PCI_D3cold, 0);
- e1000e_reset(adapter);
- ew32(WUS, ~0);
+ e1000e_reset(adapter);
+ ew32(WUS, ~0);
+ result = PCI_ERS_RESULT_RECOVERED;
+ }
- return PCI_ERS_RESULT_RECOVERED;
+ pci_cleanup_aer_uncorrect_error_status(pdev);
+
+ return result;
}
/**
netif_device_attach(netdev);
- /* If the controller has AMT, do not set DRV_LOAD until the interface
+ /*
+ * If the controller has AMT, do not set DRV_LOAD until the interface
* 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))
+ * under the control of the driver.
+ */
+ if (!(adapter->flags & FLAG_HAS_AMT))
e1000_get_hw_control(adapter);
}
{
struct e1000_hw *hw = &adapter->hw;
struct net_device *netdev = adapter->netdev;
- u32 part_num;
+ 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");
- e1000e_read_part_num(hw, &part_num);
- ndev_info(netdev, "MAC: %d, PHY: %d, PBA No: %06x-%03x\n",
- hw->mac.type, hw->phy.type,
- (part_num >> 8), (part_num & 0xff));
+ e_info("(PCI Express:2.5GB/s:%s) %pM\n",
+ /* bus width */
+ ((hw->bus.width == e1000_bus_width_pcie_x4) ? "Width x4" :
+ "Width x1"),
+ /* MAC address */
+ netdev->dev_addr);
+ 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);
+ 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 (!ret_val && (!(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 (!ret_val && (le16_to_cpu(buf) & (3 << 2))) {
+ /* ASPM enable */
+ dev_warn(&adapter->pdev->dev,
+ "Warning: detected ASPM enabled in EEPROM\n");
+ }
}
+static const struct net_device_ops e1000e_netdev_ops = {
+ .ndo_open = e1000_open,
+ .ndo_stop = e1000_close,
+ .ndo_start_xmit = e1000_xmit_frame,
+ .ndo_get_stats = e1000_get_stats,
+ .ndo_set_multicast_list = e1000_set_multi,
+ .ndo_set_mac_address = e1000_set_mac,
+ .ndo_change_mtu = e1000_change_mtu,
+ .ndo_do_ioctl = e1000_ioctl,
+ .ndo_tx_timeout = e1000_tx_timeout,
+ .ndo_validate_addr = eth_validate_addr,
+
+ .ndo_vlan_rx_register = e1000_vlan_rx_register,
+ .ndo_vlan_rx_add_vid = e1000_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = e1000_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = e1000_netpoll,
+#endif
+};
+
/**
* e1000_probe - Device Initialization Routine
* @pdev: PCI device information struct
struct e1000_adapter *adapter;
struct e1000_hw *hw;
const struct e1000_info *ei = e1000_info_tbl[ent->driver_data];
- unsigned long mmio_start, mmio_len;
- unsigned long flash_start, flash_len;
+ resource_size_t mmio_start, mmio_len;
+ resource_size_t flash_start, flash_len;
static int cards_found;
int i, err, pci_using_dac;
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;
}
}
- err = pci_request_regions(pdev, e1000e_driver_name);
+ err = pci_request_selected_regions_exclusive(pdev,
+ pci_select_bars(pdev, IORESOURCE_MEM),
+ e1000e_driver_name);
if (err)
goto err_pci_reg;
pci_set_master(pdev);
+ /* PCI config space info */
+ err = pci_save_state(pdev);
+ if (err)
+ goto err_alloc_etherdev;
err = -ENOMEM;
netdev = alloc_etherdev(sizeof(struct e1000_adapter));
adapter->ei = ei;
adapter->pba = ei->pba;
adapter->flags = ei->flags;
+ adapter->flags2 = ei->flags2;
adapter->hw.adapter = adapter;
adapter->hw.mac.type = ei->mac;
adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1;
}
/* construct the net_device struct */
- netdev->open = &e1000_open;
- netdev->stop = &e1000_close;
- netdev->hard_start_xmit = &e1000_xmit_frame;
- netdev->get_stats = &e1000_get_stats;
- netdev->set_multicast_list = &e1000_set_multi;
- netdev->set_mac_address = &e1000_set_mac;
- netdev->change_mtu = &e1000_change_mtu;
- netdev->do_ioctl = &e1000_ioctl;
+ netdev->netdev_ops = &e1000e_netdev_ops;
e1000e_set_ethtool_ops(netdev);
- netdev->tx_timeout = &e1000_tx_timeout;
netdev->watchdog_timeo = 5 * HZ;
netif_napi_add(netdev, &adapter->napi, e1000_clean, 64);
- netdev->vlan_rx_register = e1000_vlan_rx_register;
- netdev->vlan_rx_add_vid = e1000_vlan_rx_add_vid;
- netdev->vlan_rx_kill_vid = e1000_vlan_rx_kill_vid;
-#ifdef CONFIG_NET_POLL_CONTROLLER
- netdev->poll_controller = e1000_netpoll;
-#endif
strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
netdev->mem_start = mmio_start;
adapter->bd_number = cards_found++;
+ e1000e_check_options(adapter);
+
/* setup adapter struct */
err = e1000_sw_init(adapter);
if (err)
memcpy(&hw->nvm.ops, ei->nvm_ops, sizeof(hw->nvm.ops));
memcpy(&hw->phy.ops, ei->phy_ops, sizeof(hw->phy.ops));
- err = ei->get_invariants(adapter);
+ err = ei->get_variants(adapter);
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.wait_for_link = 0;
+ adapter->hw.phy.autoneg_wait_to_complete = 0;
/* Copper options */
- if (adapter->hw.media_type == e1000_media_type_copper) {
+ if (adapter->hw.phy.media_type == e1000_media_type_copper) {
adapter->hw.phy.mdix = AUTO_ALL_MODES;
adapter->hw.phy.disable_polarity_correction = 0;
adapter->hw.phy.ms_type = e1000_ms_hw_default;
}
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 |
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;
- /* We should not be using LLTX anymore, but we are still TX faster with
- * it. */
- netdev->features |= NETIF_F_LLTX;
-
if (e1000e_enable_mng_pass_thru(&adapter->hw))
adapter->flags |= FLAG_MNG_PT_ENABLED;
- /* before reading the NVM, reset the controller to
- * put the device in a known good starting state */
+ /*
+ * before reading the NVM, reset the controller to
+ * put the device in a known good starting state
+ */
adapter->hw.mac.ops.reset_hw(&adapter->hw);
/*
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: %pM\n", netdev->perm_addr);
err = -EIO;
goto err_eeprom;
}
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;
adapter->fc_autoneg = 1;
- adapter->hw.mac.original_fc = e1000_fc_default;
- adapter->hw.mac.fc = e1000_fc_default;
+ adapter->hw.fc.requested_mode = e1000_fc_default;
+ adapter->hw.fc.current_mode = e1000_fc_default;
adapter->hw.phy.autoneg_advertised = 0x2f;
/* ring size defaults */
/* initialize the wol settings based on the eeprom settings */
adapter->wol = adapter->eeprom_wol;
+ device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
+
+ /* save off EEPROM version number */
+ e1000_read_nvm(&adapter->hw, 5, 1, &adapter->eeprom_vers);
/* reset the hardware with the new settings */
e1000e_reset(adapter);
- /* If the controller has AMT, do not set DRV_LOAD until the interface
+ /*
+ * If the controller has AMT, do not set DRV_LOAD until the interface
* 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))
+ * under the control of the driver.
+ */
+ 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);
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);
+ e1000e_reset_interrupt_capability(adapter);
+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);
{
struct net_device *netdev = pci_get_drvdata(pdev);
struct e1000_adapter *adapter = netdev_priv(netdev);
+ int err;
- /* flush_scheduled work may reschedule our watchdog task, so
- * explicitly disable watchdog tasks from being rescheduled */
+ /*
+ * flush_scheduled work may reschedule our watchdog task, so
+ * explicitly disable watchdog tasks from being rescheduled
+ */
set_bit(__E1000_DOWN, &adapter->state);
del_timer_sync(&adapter->watchdog_timer);
del_timer_sync(&adapter->phy_info_timer);
flush_scheduled_work();
- /* Release control of h/w to f/w. If f/w is AMT enabled, this
- * would have already happened in close and is redundant. */
+ /*
+ * Release control of h/w to f/w. If f/w is AMT enabled, this
+ * would have already happened in close and is redundant.
+ */
e1000_release_hw_control(adapter);
unregister_netdev(netdev);
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);
+ /* AER disable */
+ err = pci_disable_pcie_error_reporting(pdev);
+ if (err)
+ dev_err(&pdev->dev,
+ "pci_disable_pcie_error_reporting failed 0x%x\n", err);
+
pci_disable_device(pdev);
}
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES_DUAL), board_82571 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571EB_SERDES_QUAD), board_82571 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82571PT_QUAD_COPPER), board_82571 },
+
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI), board_82572 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_COPPER), board_82572 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_FIBER), board_82572 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82572EI_SERDES), board_82572 },
+
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82573E), board_82573 },
{ 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_82574LA), board_82574 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82583V), board_82583 },
+
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_DPT),
board_80003es2lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_SPT),
board_80003es2lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_SERDES_SPT),
board_80003es2lan },
+
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE), board_ich8lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_G), board_ich8lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IFE_GT), board_ich8lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_C), board_ich8lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M), board_ich8lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH8_IGP_M_AMT), board_ich8lan },
+
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE), board_ich9lan },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH9_IFE_G), board_ich9lan },
{ 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 },
+
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_ICH10_R_BM_LM), board_ich9lan },
+ { 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 */
};
.probe = e1000_probe,
.remove = __devexit_p(e1000_remove),
#ifdef CONFIG_PM
- /* Power Managment Hooks */
+ /* Power Management Hooks */
.suspend = e1000_suspend,
.resume = e1000_resume,
#endif
int ret;
printk(KERN_INFO "%s: Intel(R) PRO/1000 Network Driver - %s\n",
e1000e_driver_name, e1000e_driver_version);
- printk(KERN_INFO "%s: Copyright (c) 1999-2007 Intel Corporation.\n",
+ printk(KERN_INFO "%s: Copyright (c) 1999-2008 Intel Corporation.\n",
e1000e_driver_name);
ret = pci_register_driver(&e1000_driver);
-
+ pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, e1000e_driver_name,
+ PM_QOS_DEFAULT_VALUE);
+
return ret;
}
module_init(e1000_init_module);
static void __exit e1000_exit_module(void)
{
pci_unregister_driver(&e1000_driver);
+ pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, e1000e_driver_name);
}
module_exit(e1000_exit_module);