#include "e1000.h"
/* Change Log
- * 6.0.58 4/20/05
- * o Accepted ethtool cleanup patch from Stephen Hemminger
- * 6.0.44+ 2/15/05
- * o applied Anton's patch to resolve tx hang in hardware
- * o Applied Andrew Mortons patch - e1000 stops working after resume
+ * 6.3.9 12/16/2005
+ * o incorporate fix for recycled skbs from IBM LTC
+ * 6.3.7 11/18/2005
+ * o Honor eeprom setting for enabling/disabling Wake On Lan
+ * 6.3.5 11/17/2005
+ * o Fix memory leak in rx ring handling for PCI Express adapters
+ * 6.3.4 11/8/05
+ * o Patch from Jesper Juhl to remove redundant NULL checks for kfree
+ * 6.3.2 9/20/05
+ * o Render logic that sets/resets DRV_LOAD as inline functions to
+ * avoid code replication. If f/w is AMT then set DRV_LOAD only when
+ * network interface is open.
+ * o Handle DRV_LOAD set/reset in cases where AMT uses VLANs.
+ * o Adjust PBA partioning for Jumbo frames using MTU size and not
+ * rx_buffer_len
+ * 6.3.1 9/19/05
+ * o Use adapter->tx_timeout_factor in Tx Hung Detect logic
+ (e1000_clean_tx_irq)
+ * o Support for 8086:10B5 device (Quad Port)
+ * 6.2.14 9/15/05
+ * o In AMT enabled configurations, set/reset DRV_LOAD bit on interface
+ * open/close
+ * 6.2.13 9/14/05
+ * o Invoke e1000_check_mng_mode only for 8257x controllers since it
+ * accesses the FWSM that is not supported in other controllers
+ * 6.2.12 9/9/05
+ * o Add support for device id E1000_DEV_ID_82546GB_QUAD_COPPER
+ * o set RCTL:SECRC only for controllers newer than 82543.
+ * o When the n/w interface comes down reset DRV_LOAD bit to notify f/w.
+ * This code was moved from e1000_remove to e1000_close
+ * 6.2.10 9/6/05
+ * o Fix error in updating RDT in el1000_alloc_rx_buffers[_ps] -- one off.
+ * o Enable fc by default on 82573 controllers (do not read eeprom)
+ * o Fix rx_errors statistic not to include missed_packet_count
+ * o Fix rx_dropped statistic not to include missed_packet_count
+ (Padraig Brady)
+ * 6.2.9 8/30/05
+ * o Remove call to update statistics from the controller ib e1000_get_stats
+ * 6.2.8 8/30/05
+ * o Improved algorithm for rx buffer allocation/rdt update
+ * o Flow control watermarks relative to rx PBA size
+ * o Simplified 'Tx Hung' detect logic
+ * 6.2.7 8/17/05
+ * o Report rx buffer allocation failures and tx timeout counts in stats
+ * 6.2.6 8/16/05
+ * o Implement workaround for controller erratum -- linear non-tso packet
+ * following a TSO gets written back prematurely
+ * 6.2.5 8/15/05
+ * o Set netdev->tx_queue_len based on link speed/duplex settings.
+ * o Fix net_stats.rx_fifo_errors <p@draigBrady.com>
+ * o Do not power off PHY if SoL/IDER session is active
+ * 6.2.4 8/10/05
+ * o Fix loopback test setup/cleanup for 82571/3 controllers
+ * o Fix parsing of outgoing packets (e1000_transfer_dhcp_info) to treat
+ * all packets as raw
+ * o Prevent operations that will cause the PHY to be reset if SoL/IDER
+ * sessions are active and log a message
+ * 6.2.2 7/21/05
+ * o used fixed size descriptors for all MTU sizes, reduces memory load
+ * 6.1.2 4/13/05
+ * o Fixed ethtool diagnostics
+ * o Enabled flow control to take default eeprom settings
+ * o Added stats_lock around e1000_read_phy_reg commands to avoid concurrent
+ * calls, one from mii_ioctl and other from within update_stats while
+ * processing MIIREG ioctl.
*/
char e1000_driver_name[] = "e1000";
#else
#define DRIVERNAPI "-NAPI"
#endif
-#define DRV_VERSION "6.3.9-k2"DRIVERNAPI
+#define DRV_VERSION "6.3.9-k4"DRIVERNAPI
char e1000_driver_version[] = DRV_VERSION;
static char e1000_copyright[] = "Copyright (c) 1999-2005 Intel Corporation.";
rxdr->next_to_clean = 0;
rxdr->next_to_use = 0;
- rxdr->rx_skb_top = NULL;
- rxdr->rx_skb_prev = NULL;
return 0;
}
rctl |= adapter->rx_buffer_len << 0x11;
} else {
rctl &= ~E1000_RCTL_SZ_4096;
- rctl &= ~E1000_RCTL_BSEX;
- rctl |= E1000_RCTL_SZ_2048;
+ rctl |= E1000_RCTL_BSEX;
+ switch (adapter->rx_buffer_len) {
+ case E1000_RXBUFFER_2048:
+ default:
+ rctl |= E1000_RCTL_SZ_2048;
+ rctl &= ~E1000_RCTL_BSEX;
+ break;
+ case E1000_RXBUFFER_4096:
+ rctl |= E1000_RCTL_SZ_4096;
+ break;
+ case E1000_RXBUFFER_8192:
+ rctl |= E1000_RCTL_SZ_8192;
+ break;
+ case E1000_RXBUFFER_16384:
+ rctl |= E1000_RCTL_SZ_16384;
+ break;
+ }
}
#ifndef CONFIG_E1000_DISABLE_PACKET_SPLIT
}
}
- /* there also may be some cached data in our adapter */
- if (rx_ring->rx_skb_top) {
- dev_kfree_skb(rx_ring->rx_skb_top);
-
- /* rx_skb_prev will be wiped out by rx_skb_top */
- rx_ring->rx_skb_top = NULL;
- rx_ring->rx_skb_prev = NULL;
- }
-
-
size = sizeof(struct e1000_buffer) * rx_ring->count;
memset(rx_ring->buffer_info, 0, size);
size = sizeof(struct e1000_ps_page) * rx_ring->count;
e1000_pci_set_mwi(&adapter->hw);
if (netif_running(netdev)) {
- e1000_configure_rx(adapter);
/* No need to loop, because 82542 supports only 1 queue */
struct e1000_rx_ring *ring = &adapter->rx_ring[0];
+ e1000_configure_rx(adapter);
adapter->alloc_rx_buf(adapter, ring, E1000_DESC_UNUSED(ring));
}
}
if (!__pskb_pull_tail(skb, pull_size)) {
printk(KERN_ERR "__pskb_pull_tail failed.\n");
dev_kfree_skb_any(skb);
- return -EFAULT;
+ return NETDEV_TX_OK;
}
len = skb->len - skb->data_len;
}
break;
}
- /* since the driver code now supports splitting a packet across
- * multiple descriptors, most of the fifo related limitations on
- * jumbo frame traffic have gone away.
- * simply use 2k descriptors for everything.
- *
- * NOTE: dev_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 */
-
- /* recent hardware supports 1KB granularity */
+
if (adapter->hw.mac_type > e1000_82547_rev_2) {
- adapter->rx_buffer_len =
- ((max_frame < E1000_RXBUFFER_2048) ?
- max_frame : E1000_RXBUFFER_2048);
+ adapter->rx_buffer_len = max_frame;
E1000_ROUNDUP(adapter->rx_buffer_len, 1024);
- } else
- adapter->rx_buffer_len = E1000_RXBUFFER_2048;
+ } else {
+ if(unlikely((adapter->hw.mac_type < e1000_82543) &&
+ (max_frame > MAXIMUM_ETHERNET_FRAME_SIZE))) {
+ DPRINTK(PROBE, ERR, "Jumbo Frames not supported "
+ "on 82542\n");
+ return -EINVAL;
+ } else {
+ if(max_frame <= E1000_RXBUFFER_2048)
+ adapter->rx_buffer_len = E1000_RXBUFFER_2048;
+ else if(max_frame <= E1000_RXBUFFER_4096)
+ adapter->rx_buffer_len = E1000_RXBUFFER_4096;
+ else if(max_frame <= E1000_RXBUFFER_8192)
+ adapter->rx_buffer_len = E1000_RXBUFFER_8192;
+ else if(max_frame <= E1000_RXBUFFER_16384)
+ adapter->rx_buffer_len = E1000_RXBUFFER_16384;
+ }
+ }
netdev->mtu = new_mtu;
{
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
- struct e1000_rx_desc *rx_desc;
- struct e1000_buffer *buffer_info;
+ struct e1000_rx_desc *rx_desc, *next_rxd;
+ struct e1000_buffer *buffer_info, *next_buffer;
unsigned long flags;
uint32_t length;
uint8_t last_byte;
unsigned int i;
int cleaned_count = 0;
- boolean_t cleaned = FALSE, multi_descriptor = FALSE;
+ boolean_t cleaned = FALSE;
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;
+ struct sk_buff *skb, *next_skb;
u8 status;
#ifdef CONFIG_E1000_NAPI
if (*work_done >= work_to_do)
#endif
status = rx_desc->status;
skb = buffer_info->skb;
+ buffer_info->skb = NULL;
+
+ if (++i == rx_ring->count) i = 0;
+ next_rxd = E1000_RX_DESC(*rx_ring, i);
+ next_buffer = &rx_ring->buffer_info[i];
+ next_skb = next_buffer->skb;
+
cleaned = TRUE;
cleaned_count++;
pci_unmap_single(pdev,
length = le16_to_cpu(rx_desc->length);
- skb_put(skb, length);
-
- if (!(status & E1000_RXD_STAT_EOP)) {
- if (!rx_ring->rx_skb_top) {
- rx_ring->rx_skb_top = skb;
- rx_ring->rx_skb_top->len = length;
- rx_ring->rx_skb_prev = skb;
- } else {
- if (skb_shinfo(rx_ring->rx_skb_top)->frag_list) {
- rx_ring->rx_skb_prev->next = skb;
- skb->prev = rx_ring->rx_skb_prev;
- } else {
- skb_shinfo(rx_ring->rx_skb_top)->frag_list = skb;
- }
- rx_ring->rx_skb_prev = skb;
- rx_ring->rx_skb_top->data_len += length;
- }
+ if (unlikely(!(status & E1000_RXD_STAT_EOP))) {
+ /* All receives must fit into a single buffer */
+ E1000_DBG("%s: Receive packet consumed multiple"
+ " buffers\n", netdev->name);
+ dev_kfree_skb_irq(skb);
goto next_desc;
- } else {
- if (rx_ring->rx_skb_top) {
- if (skb_shinfo(rx_ring->rx_skb_top)
- ->frag_list) {
- rx_ring->rx_skb_prev->next = skb;
- skb->prev = rx_ring->rx_skb_prev;
- } else
- skb_shinfo(rx_ring->rx_skb_top)
- ->frag_list = skb;
-
- rx_ring->rx_skb_top->data_len += length;
- rx_ring->rx_skb_top->len +=
- rx_ring->rx_skb_top->data_len;
-
- skb = rx_ring->rx_skb_top;
- multi_descriptor = TRUE;
- rx_ring->rx_skb_top = NULL;
- rx_ring->rx_skb_prev = NULL;
- }
}
if (unlikely(rx_desc->errors & E1000_RXD_ERR_FRAME_ERR_MASK)) {
* performance for small packets with large amounts
* of reassembly being done in the stack */
#define E1000_CB_LENGTH 256
- if ((length < E1000_CB_LENGTH) &&
- !rx_ring->rx_skb_top &&
- /* or maybe (status & E1000_RXD_STAT_EOP) && */
- !multi_descriptor) {
+ if (length < E1000_CB_LENGTH) {
struct sk_buff *new_skb =
dev_alloc_skb(length + NET_IP_ALIGN);
if (new_skb) {
skb = new_skb;
skb_put(skb, length);
}
- }
+ } else
+ skb_put(skb, length);
/* end copybreak code */
e1000_rx_checksum(adapter,
(uint32_t)(status) |
((uint32_t)(rx_desc->errors) << 24),
- rx_desc->csum, skb);
+ le16_to_cpu(rx_desc->csum), skb);
skb->protocol = eth_type_trans(skb, netdev);
#ifdef CONFIG_E1000_NAPI
cleaned_count = 0;
}
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
}
rx_ring->next_to_clean = i;
struct e1000_rx_ring *rx_ring)
#endif
{
- union e1000_rx_desc_packet_split *rx_desc;
+ union e1000_rx_desc_packet_split *rx_desc, *next_rxd;
struct net_device *netdev = adapter->netdev;
struct pci_dev *pdev = adapter->pdev;
- struct e1000_buffer *buffer_info;
+ struct e1000_buffer *buffer_info, *next_buffer;
struct e1000_ps_page *ps_page;
struct e1000_ps_page_dma *ps_page_dma;
- struct sk_buff *skb;
+ struct sk_buff *skb, *next_skb;
unsigned int i, j;
uint32_t length, staterr;
int cleaned_count = 0;
i = rx_ring->next_to_clean;
rx_desc = E1000_RX_DESC_PS(*rx_ring, i);
staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
+ buffer_info = &rx_ring->buffer_info[i];
while (staterr & E1000_RXD_STAT_DD) {
- buffer_info = &rx_ring->buffer_info[i];
ps_page = &rx_ring->ps_page[i];
ps_page_dma = &rx_ring->ps_page_dma[i];
#ifdef CONFIG_E1000_NAPI
break;
(*work_done)++;
#endif
+ skb = buffer_info->skb;
+
+ if (++i == rx_ring->count) i = 0;
+ next_rxd = E1000_RX_DESC_PS(*rx_ring, i);
+ next_buffer = &rx_ring->buffer_info[i];
+ next_skb = next_buffer->skb;
+
cleaned = TRUE;
cleaned_count++;
pci_unmap_single(pdev, buffer_info->dma,
buffer_info->length,
PCI_DMA_FROMDEVICE);
- skb = buffer_info->skb;
-
if (unlikely(!(staterr & E1000_RXD_STAT_EOP))) {
E1000_DBG("%s: Packet Split buffers didn't pick up"
" the full packet\n", netdev->name);
}
e1000_rx_checksum(adapter, staterr,
- rx_desc->wb.lower.hi_dword.csum_ip.csum, skb);
+ le16_to_cpu(rx_desc->wb.lower.hi_dword.csum_ip.csum), skb);
skb->protocol = eth_type_trans(skb, netdev);
if (likely(rx_desc->wb.upper.header_status &
- E1000_RXDPS_HDRSTAT_HDRSP))
+ cpu_to_le16(E1000_RXDPS_HDRSTAT_HDRSP)))
adapter->rx_hdr_split++;
#ifdef CONFIG_E1000_NAPI
if (unlikely(adapter->vlgrp && (staterr & E1000_RXD_STAT_VP))) {
#endif
next_desc:
- rx_desc->wb.middle.status_error &= ~0xFF;
+ rx_desc->wb.middle.status_error &= cpu_to_le32(~0xFF);
buffer_info->skb = NULL;
/* return some buffers to hardware, one at a time is too slow */
cleaned_count = 0;
}
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+
staterr = le32_to_cpu(rx_desc->wb.middle.status_error);
}
rx_ring->next_to_clean = i;
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