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path: root/drivers/net/e1000e/netdev.c
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Diffstat (limited to 'drivers/net/e1000e/netdev.c')
-rw-r--r--drivers/net/e1000e/netdev.c128
1 files changed, 55 insertions, 73 deletions
diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 04e007dcf47..f388a017932 100644
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -57,6 +57,7 @@ static const struct e1000_info *e1000_info_tbl[] = {
[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,
@@ -566,15 +567,14 @@ next_desc:
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)
@@ -679,12 +679,10 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
}
if (adapter->detect_tx_hung) {
- /*
- * Detect a transmit hang in hardware, this serializes the
- * check with the clearing of time_stamp and movement of 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 &&
+ if (tx_ring->buffer_info[eop].time_stamp &&
time_after(jiffies, tx_ring->buffer_info[eop].time_stamp
+ (adapter->tx_timeout_factor * HZ))
&& !(er32(STATUS) & E1000_STATUS_TXOFF)) {
@@ -3309,7 +3307,7 @@ void e1000e_update_stats(struct e1000_adapter *adapter)
adapter->stats.algnerrc += er32(ALGNERRC);
adapter->stats.rxerrc += er32(RXERRC);
- if (hw->mac.type != e1000_82574)
+ 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);
@@ -3766,11 +3764,17 @@ static bool e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb)
unsigned int i;
u8 css;
u32 cmd_len = E1000_TXD_CMD_DEXT;
+ __be16 protocol;
if (skb->ip_summed != CHECKSUM_PARTIAL)
return 0;
- switch (skb->protocol) {
+ if (skb->protocol == cpu_to_be16(ETH_P_8021Q))
+ protocol = vlan_eth_hdr(skb)->h_vlan_encapsulated_proto;
+ else
+ protocol = skb->protocol;
+
+ switch (protocol) {
case cpu_to_be16(ETH_P_IP):
if (ip_hdr(skb)->protocol == IPPROTO_TCP)
cmd_len |= E1000_TXD_CMD_TCP;
@@ -3782,7 +3786,8 @@ static bool e1000_tx_csum(struct e1000_adapter *adapter, struct sk_buff *skb)
break;
default:
if (unlikely(net_ratelimit()))
- e_warn("checksum_partial proto=%x!\n", skb->protocol);
+ e_warn("checksum_partial proto=%x!\n",
+ be16_to_cpu(protocol));
break;
}
@@ -3821,42 +3826,40 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
{
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(adapter->pdev, 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++) {
@@ -3864,49 +3867,27 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
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(adapter->pdev,
- 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;
@@ -4159,20 +4140,20 @@ static int e1000_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
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);
- 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);
-
return NETDEV_TX_OK;
}
@@ -5149,6 +5130,7 @@ static struct pci_device_id e1000_pci_tbl[] = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82573L), board_82573 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82574L), board_82574 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82583V), board_82583 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_80003ES2LAN_COPPER_DPT),
board_80003es2lan },
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-06-02 16:12:26 +0000