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@@ -33,6 +33,8 @@
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#include <linux/tcp.h>
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#include <net/checksum.h>
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+#include <asm/irq.h>
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+
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#include "pasemi_mac.h"
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@@ -51,6 +53,16 @@
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#define RX_RING_SIZE 512
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#define TX_RING_SIZE 512
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+#define DEFAULT_MSG_ENABLE \
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+ (NETIF_MSG_DRV | \
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+ NETIF_MSG_PROBE | \
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+ NETIF_MSG_LINK | \
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+ NETIF_MSG_TIMER | \
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+ NETIF_MSG_IFDOWN | \
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+ NETIF_MSG_IFUP | \
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+ NETIF_MSG_RX_ERR | \
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+ NETIF_MSG_TX_ERR)
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+
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#define TX_DESC(mac, num) ((mac)->tx->desc[(num) & (TX_RING_SIZE-1)])
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#define TX_DESC_INFO(mac, num) ((mac)->tx->desc_info[(num) & (TX_RING_SIZE-1)])
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#define RX_DESC(mac, num) ((mac)->rx->desc[(num) & (RX_RING_SIZE-1)])
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@@ -59,11 +71,13 @@
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#define BUF_SIZE 1646 /* 1500 MTU + ETH_HLEN + VLAN_HLEN + 2 64B cachelines */
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-/* XXXOJN these should come out of the device tree some day */
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-#define PAS_DMA_CAP_BASE 0xe00d0040
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-#define PAS_DMA_CAP_SIZE 0x100
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-#define PAS_DMA_COM_BASE 0xe00d0100
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-#define PAS_DMA_COM_SIZE 0x100
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+MODULE_LICENSE("GPL");
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+MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
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+MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver");
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+
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+static int debug = -1; /* -1 == use DEFAULT_MSG_ENABLE as value */
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+module_param(debug, int, 0);
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+MODULE_PARM_DESC(debug, "PA Semi MAC bitmapped debugging message enable value");
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static struct pasdma_status *dma_status;
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@@ -80,7 +94,12 @@ static int pasemi_get_mac_addr(struct pasemi_mac *mac)
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return -ENOENT;
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}
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- maddr = of_get_property(dn, "mac-address", NULL);
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+ maddr = of_get_property(dn, "local-mac-address", NULL);
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+
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+ /* Fall back to mac-address for older firmware */
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+ if (maddr == NULL)
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+ maddr = of_get_property(dn, "mac-address", NULL);
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+
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if (maddr == NULL) {
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dev_warn(&pdev->dev,
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"no mac address in device tree, not configuring\n");
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@@ -277,8 +296,8 @@ static void pasemi_mac_free_rx_resources(struct net_device *dev)
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for (i = 0; i < RX_RING_SIZE; i++) {
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info = &RX_DESC_INFO(mac, i);
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dp = &RX_DESC(mac, i);
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- if (info->dma) {
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- if (info->skb) {
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+ if (info->skb) {
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+ if (info->dma) {
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pci_unmap_single(mac->dma_pdev,
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info->dma,
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info->skb->len,
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@@ -309,82 +328,120 @@ static void pasemi_mac_replenish_rx_ring(struct net_device *dev)
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struct pasemi_mac *mac = netdev_priv(dev);
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unsigned int i;
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int start = mac->rx->next_to_fill;
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- unsigned int count;
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+ unsigned int limit, count;
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- count = (mac->rx->next_to_clean + RX_RING_SIZE -
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+ limit = (mac->rx->next_to_clean + RX_RING_SIZE -
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mac->rx->next_to_fill) & (RX_RING_SIZE - 1);
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/* Check to see if we're doing first-time setup */
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if (unlikely(mac->rx->next_to_clean == 0 && mac->rx->next_to_fill == 0))
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- count = RX_RING_SIZE;
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+ limit = RX_RING_SIZE;
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- if (count <= 0)
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+ if (limit <= 0)
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return;
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- for (i = start; i < start + count; i++) {
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+ i = start;
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+ for (count = limit; count; count--) {
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struct pasemi_mac_buffer *info = &RX_DESC_INFO(mac, i);
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u64 *buff = &RX_BUFF(mac, i);
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struct sk_buff *skb;
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dma_addr_t dma;
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- skb = dev_alloc_skb(BUF_SIZE);
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+ /* skb might still be in there for recycle on short receives */
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+ if (info->skb)
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+ skb = info->skb;
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+ else
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+ skb = dev_alloc_skb(BUF_SIZE);
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- if (!skb) {
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- count = i - start;
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+ if (unlikely(!skb))
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break;
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- }
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dma = pci_map_single(mac->dma_pdev, skb->data, skb->len,
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PCI_DMA_FROMDEVICE);
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- if (dma_mapping_error(dma)) {
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+ if (unlikely(dma_mapping_error(dma))) {
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dev_kfree_skb_irq(info->skb);
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- count = i - start;
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break;
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}
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info->skb = skb;
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info->dma = dma;
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*buff = XCT_RXB_LEN(BUF_SIZE) | XCT_RXB_ADDR(dma);
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+ i++;
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}
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wmb();
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pci_write_config_dword(mac->dma_pdev,
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PAS_DMA_RXCHAN_INCR(mac->dma_rxch),
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- count);
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+ limit - count);
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pci_write_config_dword(mac->dma_pdev,
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PAS_DMA_RXINT_INCR(mac->dma_if),
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- count);
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+ limit - count);
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- mac->rx->next_to_fill += count;
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+ mac->rx->next_to_fill += limit - count;
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}
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+static void pasemi_mac_restart_rx_intr(struct pasemi_mac *mac)
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+{
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+ unsigned int reg, stat;
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+ /* Re-enable packet count interrupts: finally
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+ * ack the packet count interrupt we got in rx_intr.
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+ */
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+
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+ pci_read_config_dword(mac->iob_pdev,
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+ PAS_IOB_DMA_RXCH_STAT(mac->dma_rxch),
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+ &stat);
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+
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+ reg = PAS_IOB_DMA_RXCH_RESET_PCNT(stat & PAS_IOB_DMA_RXCH_STAT_CNTDEL_M)
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+ | PAS_IOB_DMA_RXCH_RESET_PINTC;
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+
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+ pci_write_config_dword(mac->iob_pdev,
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+ PAS_IOB_DMA_RXCH_RESET(mac->dma_rxch),
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+ reg);
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+}
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+
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+static void pasemi_mac_restart_tx_intr(struct pasemi_mac *mac)
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+{
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+ unsigned int reg, stat;
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+
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+ /* Re-enable packet count interrupts */
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+ pci_read_config_dword(mac->iob_pdev,
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+ PAS_IOB_DMA_TXCH_STAT(mac->dma_txch), &stat);
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+
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+ reg = PAS_IOB_DMA_TXCH_RESET_PCNT(stat & PAS_IOB_DMA_TXCH_STAT_CNTDEL_M)
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+ | PAS_IOB_DMA_TXCH_RESET_PINTC;
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+
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+ pci_write_config_dword(mac->iob_pdev,
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+ PAS_IOB_DMA_TXCH_RESET(mac->dma_txch), reg);
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+}
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+
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+
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static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit)
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{
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- unsigned int i;
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- int start, count;
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+ unsigned int n;
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+ int count;
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+ struct pas_dma_xct_descr *dp;
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+ struct pasemi_mac_buffer *info;
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+ struct sk_buff *skb;
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+ unsigned int i, len;
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+ u64 macrx;
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+ dma_addr_t dma;
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spin_lock(&mac->rx->lock);
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- start = mac->rx->next_to_clean;
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- count = 0;
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+ n = mac->rx->next_to_clean;
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- for (i = start; i < (start + RX_RING_SIZE) && count < limit; i++) {
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- struct pas_dma_xct_descr *dp;
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- struct pasemi_mac_buffer *info;
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- struct sk_buff *skb;
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- unsigned int j, len;
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- dma_addr_t dma;
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+ for (count = limit; count; count--) {
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rmb();
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- dp = &RX_DESC(mac, i);
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+ dp = &RX_DESC(mac, n);
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+ macrx = dp->macrx;
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- if (!(dp->macrx & XCT_MACRX_O))
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+ if (!(macrx & XCT_MACRX_O))
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break;
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- count++;
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info = NULL;
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@@ -396,29 +453,42 @@ static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit)
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*/
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dma = (dp->ptr & XCT_PTR_ADDR_M);
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- for (j = start; j < (start + RX_RING_SIZE); j++) {
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- info = &RX_DESC_INFO(mac, j);
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+ for (i = n; i < (n + RX_RING_SIZE); i++) {
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+ info = &RX_DESC_INFO(mac, i);
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if (info->dma == dma)
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break;
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}
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- BUG_ON(!info);
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- BUG_ON(info->dma != dma);
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+ skb = info->skb;
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+ info->dma = 0;
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- pci_unmap_single(mac->dma_pdev, info->dma, info->skb->len,
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+ pci_unmap_single(mac->dma_pdev, dma, skb->len,
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PCI_DMA_FROMDEVICE);
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- skb = info->skb;
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-
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- len = (dp->macrx & XCT_MACRX_LLEN_M) >> XCT_MACRX_LLEN_S;
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+ len = (macrx & XCT_MACRX_LLEN_M) >> XCT_MACRX_LLEN_S;
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+
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+ if (len < 256) {
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+ struct sk_buff *new_skb =
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+ netdev_alloc_skb(mac->netdev, len + NET_IP_ALIGN);
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+ if (new_skb) {
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+ skb_reserve(new_skb, NET_IP_ALIGN);
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+ memcpy(new_skb->data - NET_IP_ALIGN,
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+ skb->data - NET_IP_ALIGN,
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+ len + NET_IP_ALIGN);
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+ /* save the skb in buffer_info as good */
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+ skb = new_skb;
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+ }
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+ /* else just continue with the old one */
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+ } else
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+ info->skb = NULL;
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skb_put(skb, len);
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skb->protocol = eth_type_trans(skb, mac->netdev);
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- if ((dp->macrx & XCT_MACRX_HTY_M) == XCT_MACRX_HTY_IPV4_OK) {
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+ if ((macrx & XCT_MACRX_HTY_M) == XCT_MACRX_HTY_IPV4_OK) {
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skb->ip_summed = CHECKSUM_COMPLETE;
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- skb->csum = (dp->macrx & XCT_MACRX_CSUM_M) >>
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+ skb->csum = (macrx & XCT_MACRX_CSUM_M) >>
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XCT_MACRX_CSUM_S;
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} else
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skb->ip_summed = CHECKSUM_NONE;
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@@ -428,13 +498,13 @@ static int pasemi_mac_clean_rx(struct pasemi_mac *mac, int limit)
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netif_receive_skb(skb);
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- info->dma = 0;
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- info->skb = NULL;
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dp->ptr = 0;
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dp->macrx = 0;
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+
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+ n++;
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}
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- mac->rx->next_to_clean += count;
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+ mac->rx->next_to_clean += limit - count;
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pasemi_mac_replenish_rx_ring(mac->netdev);
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spin_unlock(&mac->rx->lock);
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@@ -476,6 +546,8 @@ static int pasemi_mac_clean_tx(struct pasemi_mac *mac)
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mac->tx->next_to_clean += count;
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spin_unlock_irqrestore(&mac->tx->lock, flags);
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+ netif_wake_queue(mac->netdev);
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+
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return count;
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}
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@@ -486,18 +558,28 @@ static irqreturn_t pasemi_mac_rx_intr(int irq, void *data)
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struct pasemi_mac *mac = netdev_priv(dev);
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unsigned int reg;
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- if (!(*mac->rx_status & PAS_STATUS_INT))
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+ if (!(*mac->rx_status & PAS_STATUS_CAUSE_M))
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return IRQ_NONE;
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- netif_rx_schedule(dev);
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- pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG,
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- PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(0));
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+ if (*mac->rx_status & PAS_STATUS_ERROR)
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+ printk("rx_status reported error\n");
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+
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+ /* Don't reset packet count so it won't fire again but clear
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+ * all others.
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+ */
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+
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+ pci_read_config_dword(mac->dma_pdev, PAS_DMA_RXINT_RCMDSTA(mac->dma_if), ®);
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- reg = PAS_IOB_DMA_RXCH_RESET_PINTC | PAS_IOB_DMA_RXCH_RESET_SINTC |
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- PAS_IOB_DMA_RXCH_RESET_DINTC;
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+ reg = 0;
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+ if (*mac->rx_status & PAS_STATUS_SOFT)
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+ reg |= PAS_IOB_DMA_RXCH_RESET_SINTC;
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+ if (*mac->rx_status & PAS_STATUS_ERROR)
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+ reg |= PAS_IOB_DMA_RXCH_RESET_DINTC;
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if (*mac->rx_status & PAS_STATUS_TIMER)
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reg |= PAS_IOB_DMA_RXCH_RESET_TINTC;
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+ netif_rx_schedule(dev);
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+
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pci_write_config_dword(mac->iob_pdev,
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PAS_IOB_DMA_RXCH_RESET(mac->dma_rxch), reg);
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@@ -510,31 +592,137 @@ static irqreturn_t pasemi_mac_tx_intr(int irq, void *data)
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struct net_device *dev = data;
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struct pasemi_mac *mac = netdev_priv(dev);
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unsigned int reg;
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- int was_full;
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- was_full = mac->tx->next_to_clean - mac->tx->next_to_use == TX_RING_SIZE;
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-
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- if (!(*mac->tx_status & PAS_STATUS_INT))
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+ if (!(*mac->tx_status & PAS_STATUS_CAUSE_M))
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return IRQ_NONE;
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pasemi_mac_clean_tx(mac);
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- reg = PAS_IOB_DMA_TXCH_RESET_PINTC | PAS_IOB_DMA_TXCH_RESET_SINTC;
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- if (*mac->tx_status & PAS_STATUS_TIMER)
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- reg |= PAS_IOB_DMA_TXCH_RESET_TINTC;
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+ reg = PAS_IOB_DMA_TXCH_RESET_PINTC;
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+
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+ if (*mac->tx_status & PAS_STATUS_SOFT)
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+ reg |= PAS_IOB_DMA_TXCH_RESET_SINTC;
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+ if (*mac->tx_status & PAS_STATUS_ERROR)
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+ reg |= PAS_IOB_DMA_TXCH_RESET_DINTC;
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pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_TXCH_RESET(mac->dma_txch),
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reg);
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- if (was_full)
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- netif_wake_queue(dev);
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-
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return IRQ_HANDLED;
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}
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+static void pasemi_adjust_link(struct net_device *dev)
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+{
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+ struct pasemi_mac *mac = netdev_priv(dev);
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+ int msg;
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+ unsigned int flags;
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+ unsigned int new_flags;
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+
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+ if (!mac->phydev->link) {
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+ /* If no link, MAC speed settings don't matter. Just report
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+ * link down and return.
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+ */
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+ if (mac->link && netif_msg_link(mac))
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+ printk(KERN_INFO "%s: Link is down.\n", dev->name);
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+
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+ netif_carrier_off(dev);
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+ mac->link = 0;
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+
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+ return;
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+ } else
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+ netif_carrier_on(dev);
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+
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+ pci_read_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, &flags);
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+ new_flags = flags & ~(PAS_MAC_CFG_PCFG_HD | PAS_MAC_CFG_PCFG_SPD_M |
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+ PAS_MAC_CFG_PCFG_TSR_M);
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+
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+ if (!mac->phydev->duplex)
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+ new_flags |= PAS_MAC_CFG_PCFG_HD;
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+
|
|
|
+ switch (mac->phydev->speed) {
|
|
|
+ case 1000:
|
|
|
+ new_flags |= PAS_MAC_CFG_PCFG_SPD_1G |
|
|
|
+ PAS_MAC_CFG_PCFG_TSR_1G;
|
|
|
+ break;
|
|
|
+ case 100:
|
|
|
+ new_flags |= PAS_MAC_CFG_PCFG_SPD_100M |
|
|
|
+ PAS_MAC_CFG_PCFG_TSR_100M;
|
|
|
+ break;
|
|
|
+ case 10:
|
|
|
+ new_flags |= PAS_MAC_CFG_PCFG_SPD_10M |
|
|
|
+ PAS_MAC_CFG_PCFG_TSR_10M;
|
|
|
+ break;
|
|
|
+ default:
|
|
|
+ printk("Unsupported speed %d\n", mac->phydev->speed);
|
|
|
+ }
|
|
|
+
|
|
|
+ /* Print on link or speed/duplex change */
|
|
|
+ msg = mac->link != mac->phydev->link || flags != new_flags;
|
|
|
+
|
|
|
+ mac->duplex = mac->phydev->duplex;
|
|
|
+ mac->speed = mac->phydev->speed;
|
|
|
+ mac->link = mac->phydev->link;
|
|
|
+
|
|
|
+ if (new_flags != flags)
|
|
|
+ pci_write_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, new_flags);
|
|
|
+
|
|
|
+ if (msg && netif_msg_link(mac))
|
|
|
+ printk(KERN_INFO "%s: Link is up at %d Mbps, %s duplex.\n",
|
|
|
+ dev->name, mac->speed, mac->duplex ? "full" : "half");
|
|
|
+}
|
|
|
+
|
|
|
+static int pasemi_mac_phy_init(struct net_device *dev)
|
|
|
+{
|
|
|
+ struct pasemi_mac *mac = netdev_priv(dev);
|
|
|
+ struct device_node *dn, *phy_dn;
|
|
|
+ struct phy_device *phydev;
|
|
|
+ unsigned int phy_id;
|
|
|
+ const phandle *ph;
|
|
|
+ const unsigned int *prop;
|
|
|
+ struct resource r;
|
|
|
+ int ret;
|
|
|
+
|
|
|
+ dn = pci_device_to_OF_node(mac->pdev);
|
|
|
+ ph = of_get_property(dn, "phy-handle", NULL);
|
|
|
+ if (!ph)
|
|
|
+ return -ENODEV;
|
|
|
+ phy_dn = of_find_node_by_phandle(*ph);
|
|
|
+
|
|
|
+ prop = of_get_property(phy_dn, "reg", NULL);
|
|
|
+ ret = of_address_to_resource(phy_dn->parent, 0, &r);
|
|
|
+ if (ret)
|
|
|
+ goto err;
|
|
|
+
|
|
|
+ phy_id = *prop;
|
|
|
+ snprintf(mac->phy_id, BUS_ID_SIZE, PHY_ID_FMT, (int)r.start, phy_id);
|
|
|
+
|
|
|
+ of_node_put(phy_dn);
|
|
|
+
|
|
|
+ mac->link = 0;
|
|
|
+ mac->speed = 0;
|
|
|
+ mac->duplex = -1;
|
|
|
+
|
|
|
+ phydev = phy_connect(dev, mac->phy_id, &pasemi_adjust_link, 0, PHY_INTERFACE_MODE_SGMII);
|
|
|
+
|
|
|
+ if (IS_ERR(phydev)) {
|
|
|
+ printk(KERN_ERR "%s: Could not attach to phy\n", dev->name);
|
|
|
+ return PTR_ERR(phydev);
|
|
|
+ }
|
|
|
+
|
|
|
+ mac->phydev = phydev;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+err:
|
|
|
+ of_node_put(phy_dn);
|
|
|
+ return -ENODEV;
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
static int pasemi_mac_open(struct net_device *dev)
|
|
|
{
|
|
|
struct pasemi_mac *mac = netdev_priv(dev);
|
|
|
+ int base_irq;
|
|
|
unsigned int flags;
|
|
|
int ret;
|
|
|
|
|
@@ -558,10 +746,18 @@ static int pasemi_mac_open(struct net_device *dev)
|
|
|
flags |= PAS_MAC_CFG_PCFG_TSR_1G | PAS_MAC_CFG_PCFG_SPD_1G;
|
|
|
|
|
|
pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_RXCH_CFG(mac->dma_rxch),
|
|
|
- PAS_IOB_DMA_RXCH_CFG_CNTTH(30));
|
|
|
+ PAS_IOB_DMA_RXCH_CFG_CNTTH(1));
|
|
|
|
|
|
+ pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_TXCH_CFG(mac->dma_txch),
|
|
|
+ PAS_IOB_DMA_TXCH_CFG_CNTTH(32));
|
|
|
+
|
|
|
+ /* Clear out any residual packet count state from firmware */
|
|
|
+ pasemi_mac_restart_rx_intr(mac);
|
|
|
+ pasemi_mac_restart_tx_intr(mac);
|
|
|
+
|
|
|
+ /* 0xffffff is max value, about 16ms */
|
|
|
pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG,
|
|
|
- PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(1000000));
|
|
|
+ PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(0xffffff));
|
|
|
|
|
|
pci_write_config_dword(mac->pdev, PAS_MAC_CFG_PCFG, flags);
|
|
|
|
|
@@ -595,31 +791,50 @@ static int pasemi_mac_open(struct net_device *dev)
|
|
|
|
|
|
pasemi_mac_replenish_rx_ring(dev);
|
|
|
|
|
|
+ ret = pasemi_mac_phy_init(dev);
|
|
|
+ /* Some configs don't have PHYs (XAUI etc), so don't complain about
|
|
|
+ * failed init due to -ENODEV.
|
|
|
+ */
|
|
|
+ if (ret && ret != -ENODEV)
|
|
|
+ dev_warn(&mac->pdev->dev, "phy init failed: %d\n", ret);
|
|
|
+
|
|
|
netif_start_queue(dev);
|
|
|
netif_poll_enable(dev);
|
|
|
|
|
|
- ret = request_irq(mac->dma_pdev->irq + mac->dma_txch,
|
|
|
- &pasemi_mac_tx_intr, IRQF_DISABLED,
|
|
|
+ /* Interrupts are a bit different for our DMA controller: While
|
|
|
+ * it's got one a regular PCI device header, the interrupt there
|
|
|
+ * is really the base of the range it's using. Each tx and rx
|
|
|
+ * channel has it's own interrupt source.
|
|
|
+ */
|
|
|
+
|
|
|
+ base_irq = virq_to_hw(mac->dma_pdev->irq);
|
|
|
+
|
|
|
+ mac->tx_irq = irq_create_mapping(NULL, base_irq + mac->dma_txch);
|
|
|
+ mac->rx_irq = irq_create_mapping(NULL, base_irq + 20 + mac->dma_txch);
|
|
|
+
|
|
|
+ ret = request_irq(mac->tx_irq, &pasemi_mac_tx_intr, IRQF_DISABLED,
|
|
|
mac->tx->irq_name, dev);
|
|
|
if (ret) {
|
|
|
dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n",
|
|
|
- mac->dma_pdev->irq + mac->dma_txch, ret);
|
|
|
+ base_irq + mac->dma_txch, ret);
|
|
|
goto out_tx_int;
|
|
|
}
|
|
|
|
|
|
- ret = request_irq(mac->dma_pdev->irq + 20 + mac->dma_rxch,
|
|
|
- &pasemi_mac_rx_intr, IRQF_DISABLED,
|
|
|
+ ret = request_irq(mac->rx_irq, &pasemi_mac_rx_intr, IRQF_DISABLED,
|
|
|
mac->rx->irq_name, dev);
|
|
|
if (ret) {
|
|
|
dev_err(&mac->pdev->dev, "request_irq of irq %d failed: %d\n",
|
|
|
- mac->dma_pdev->irq + 20 + mac->dma_rxch, ret);
|
|
|
+ base_irq + 20 + mac->dma_rxch, ret);
|
|
|
goto out_rx_int;
|
|
|
}
|
|
|
|
|
|
+ if (mac->phydev)
|
|
|
+ phy_start(mac->phydev);
|
|
|
+
|
|
|
return 0;
|
|
|
|
|
|
out_rx_int:
|
|
|
- free_irq(mac->dma_pdev->irq + mac->dma_txch, dev);
|
|
|
+ free_irq(mac->tx_irq, dev);
|
|
|
out_tx_int:
|
|
|
netif_poll_disable(dev);
|
|
|
netif_stop_queue(dev);
|
|
@@ -639,6 +854,11 @@ static int pasemi_mac_close(struct net_device *dev)
|
|
|
unsigned int stat;
|
|
|
int retries;
|
|
|
|
|
|
+ if (mac->phydev) {
|
|
|
+ phy_stop(mac->phydev);
|
|
|
+ phy_disconnect(mac->phydev);
|
|
|
+ }
|
|
|
+
|
|
|
netif_stop_queue(dev);
|
|
|
|
|
|
/* Clean out any pending buffers */
|
|
@@ -660,40 +880,37 @@ static int pasemi_mac_close(struct net_device *dev)
|
|
|
pci_read_config_dword(mac->dma_pdev,
|
|
|
PAS_DMA_TXCHAN_TCMDSTA(mac->dma_txch),
|
|
|
&stat);
|
|
|
- if (stat & PAS_DMA_TXCHAN_TCMDSTA_ACT)
|
|
|
+ if (!(stat & PAS_DMA_TXCHAN_TCMDSTA_ACT))
|
|
|
break;
|
|
|
cond_resched();
|
|
|
}
|
|
|
|
|
|
- if (!(stat & PAS_DMA_TXCHAN_TCMDSTA_ACT)) {
|
|
|
+ if (stat & PAS_DMA_TXCHAN_TCMDSTA_ACT)
|
|
|
dev_err(&mac->dma_pdev->dev, "Failed to stop tx channel\n");
|
|
|
- }
|
|
|
|
|
|
for (retries = 0; retries < MAX_RETRIES; retries++) {
|
|
|
pci_read_config_dword(mac->dma_pdev,
|
|
|
PAS_DMA_RXCHAN_CCMDSTA(mac->dma_rxch),
|
|
|
&stat);
|
|
|
- if (stat & PAS_DMA_RXCHAN_CCMDSTA_ACT)
|
|
|
+ if (!(stat & PAS_DMA_RXCHAN_CCMDSTA_ACT))
|
|
|
break;
|
|
|
cond_resched();
|
|
|
}
|
|
|
|
|
|
- if (!(stat & PAS_DMA_RXCHAN_CCMDSTA_ACT)) {
|
|
|
+ if (stat & PAS_DMA_RXCHAN_CCMDSTA_ACT)
|
|
|
dev_err(&mac->dma_pdev->dev, "Failed to stop rx channel\n");
|
|
|
- }
|
|
|
|
|
|
for (retries = 0; retries < MAX_RETRIES; retries++) {
|
|
|
pci_read_config_dword(mac->dma_pdev,
|
|
|
PAS_DMA_RXINT_RCMDSTA(mac->dma_if),
|
|
|
&stat);
|
|
|
- if (stat & PAS_DMA_RXINT_RCMDSTA_ACT)
|
|
|
+ if (!(stat & PAS_DMA_RXINT_RCMDSTA_ACT))
|
|
|
break;
|
|
|
cond_resched();
|
|
|
}
|
|
|
|
|
|
- if (!(stat & PAS_DMA_RXINT_RCMDSTA_ACT)) {
|
|
|
+ if (stat & PAS_DMA_RXINT_RCMDSTA_ACT)
|
|
|
dev_err(&mac->dma_pdev->dev, "Failed to stop rx interface\n");
|
|
|
- }
|
|
|
|
|
|
/* Then, disable the channel. This must be done separately from
|
|
|
* stopping, since you can't disable when active.
|
|
@@ -706,8 +923,8 @@ static int pasemi_mac_close(struct net_device *dev)
|
|
|
pci_write_config_dword(mac->dma_pdev,
|
|
|
PAS_DMA_RXINT_RCMDSTA(mac->dma_if), 0);
|
|
|
|
|
|
- free_irq(mac->dma_pdev->irq + mac->dma_txch, dev);
|
|
|
- free_irq(mac->dma_pdev->irq + 20 + mac->dma_rxch, dev);
|
|
|
+ free_irq(mac->tx_irq, dev);
|
|
|
+ free_irq(mac->rx_irq, dev);
|
|
|
|
|
|
/* Free resources */
|
|
|
pasemi_mac_free_rx_resources(dev);
|
|
@@ -802,6 +1019,7 @@ static struct net_device_stats *pasemi_mac_get_stats(struct net_device *dev)
|
|
|
return &mac->stats;
|
|
|
}
|
|
|
|
|
|
+
|
|
|
static void pasemi_mac_set_rx_mode(struct net_device *dev)
|
|
|
{
|
|
|
struct pasemi_mac *mac = netdev_priv(dev);
|
|
@@ -826,18 +1044,17 @@ static int pasemi_mac_poll(struct net_device *dev, int *budget)
|
|
|
|
|
|
pkts = pasemi_mac_clean_rx(mac, limit);
|
|
|
|
|
|
+ dev->quota -= pkts;
|
|
|
+ *budget -= pkts;
|
|
|
+
|
|
|
if (pkts < limit) {
|
|
|
/* all done, no more packets present */
|
|
|
netif_rx_complete(dev);
|
|
|
|
|
|
- /* re-enable receive interrupts */
|
|
|
- pci_write_config_dword(mac->iob_pdev, PAS_IOB_DMA_COM_TIMEOUTCFG,
|
|
|
- PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(1000000));
|
|
|
+ pasemi_mac_restart_rx_intr(mac);
|
|
|
return 0;
|
|
|
} else {
|
|
|
/* used up our quantum, so reschedule */
|
|
|
- dev->quota -= pkts;
|
|
|
- *budget -= pkts;
|
|
|
return 1;
|
|
|
}
|
|
|
}
|
|
@@ -937,6 +1154,11 @@ pasemi_mac_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
|
mac->rx_status = &dma_status->rx_sta[mac->dma_rxch];
|
|
|
mac->tx_status = &dma_status->tx_sta[mac->dma_txch];
|
|
|
|
|
|
+ mac->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
|
|
|
+
|
|
|
+ /* Enable most messages by default */
|
|
|
+ mac->msg_enable = (NETIF_MSG_IFUP << 1 ) - 1;
|
|
|
+
|
|
|
err = register_netdev(dev);
|
|
|
|
|
|
if (err) {
|
|
@@ -1011,9 +1233,5 @@ int pasemi_mac_init_module(void)
|
|
|
return pci_register_driver(&pasemi_mac_driver);
|
|
|
}
|
|
|
|
|
|
-MODULE_LICENSE("GPL");
|
|
|
-MODULE_AUTHOR ("Olof Johansson <olof@lixom.net>");
|
|
|
-MODULE_DESCRIPTION("PA Semi PWRficient Ethernet driver");
|
|
|
-
|
|
|
module_init(pasemi_mac_init_module);
|
|
|
module_exit(pasemi_mac_cleanup_module);
|