diff options
Diffstat (limited to 'drivers/net/ethernet/dlink/dl2k.c')
| -rw-r--r-- | drivers/net/ethernet/dlink/dl2k.c | 246 |
1 files changed, 125 insertions, 121 deletions
diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c index d8d423f22c4f..846d58c769ea 100644 --- a/drivers/net/ethernet/dlink/dl2k.c +++ b/drivers/net/ethernet/dlink/dl2k.c @@ -1,18 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* D-Link DL2000-based Gigabit Ethernet Adapter Linux driver */ /* Copyright (c) 2001, 2002 by D-Link Corporation Written by Edward Peng.<edward_peng@dlink.com.tw> Created 03-May-2001, base on Linux' sundance.c. - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. */ -#define DRV_NAME "DL2000/TC902x-based linux driver" -#define DRV_VERSION "v1.19" -#define DRV_RELDATE "2007/08/12" #include "dl2k.h" #include <linux/dma-mapping.h> @@ -23,8 +17,6 @@ #define dr16(reg) ioread16(ioaddr + (reg)) #define dr8(reg) ioread8(ioaddr + (reg)) -static char version[] = - KERN_INFO DRV_NAME " " DRV_VERSION " " DRV_RELDATE "\n"; #define MAX_UNITS 8 static int mtu[MAX_UNITS]; static int vlan[MAX_UNITS]; @@ -49,7 +41,7 @@ module_param(tx_flow, int, 0); module_param(rx_flow, int, 0); module_param(copy_thresh, int, 0); module_param(rx_coalesce, int, 0); /* Rx frame count each interrupt */ -module_param(rx_timeout, int, 0); /* Rx DMA wait time in 64ns increments */ +module_param(rx_timeout, int, 0); /* Rx DMA wait time in 640ns increments */ module_param(tx_coalesce, int, 0); /* HW xmit count each TxDMAComplete */ @@ -69,7 +61,7 @@ static const int multicast_filter_limit = 0x40; static int rio_open (struct net_device *dev); static void rio_timer (struct timer_list *t); -static void rio_tx_timeout (struct net_device *dev); +static void rio_tx_timeout (struct net_device *dev, unsigned int txqueue); static netdev_tx_t start_xmit (struct sk_buff *skb, struct net_device *dev); static irqreturn_t rio_interrupt (int irq, void *dev_instance); static void rio_free_tx (struct net_device *dev, int irq); @@ -103,10 +95,17 @@ static const struct net_device_ops netdev_ops = { .ndo_validate_addr = eth_validate_addr, .ndo_set_mac_address = eth_mac_addr, .ndo_set_rx_mode = set_multicast, - .ndo_do_ioctl = rio_ioctl, + .ndo_eth_ioctl = rio_ioctl, .ndo_tx_timeout = rio_tx_timeout, }; +static bool is_support_rmon_mmio(struct pci_dev *pdev) +{ + return pdev->vendor == PCI_VENDOR_ID_DLINK && + pdev->device == 0x4000 && + pdev->revision == 0x0c; +} + static int rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) { @@ -116,13 +115,9 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) int chip_idx = ent->driver_data; int err, irq; void __iomem *ioaddr; - static int version_printed; void *ring_space; dma_addr_t ring_dma; - if (!version_printed++) - printk ("%s", version); - err = pci_enable_device (pdev); if (err) return err; @@ -143,21 +138,27 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) np = netdev_priv(dev); + if (is_support_rmon_mmio(pdev)) + np->rmon_enable = true; + /* IO registers range. */ ioaddr = pci_iomap(pdev, 0, 0); if (!ioaddr) goto err_out_dev; np->eeprom_addr = ioaddr; -#ifdef MEM_MAPPING - /* MM registers range. */ - ioaddr = pci_iomap(pdev, 1, 0); - if (!ioaddr) - goto err_out_iounmap; -#endif + if (np->rmon_enable) { + /* MM registers range. */ + ioaddr = pci_iomap(pdev, 1, 0); + if (!ioaddr) + goto err_out_iounmap; + } + np->ioaddr = ioaddr; np->chip_id = chip_idx; np->pdev = pdev; + + spin_lock_init(&np->stats_lock); spin_lock_init (&np->tx_lock); spin_lock_init (&np->rx_lock); @@ -234,13 +235,15 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata (pdev, dev); - ring_space = pci_alloc_consistent (pdev, TX_TOTAL_SIZE, &ring_dma); + ring_space = dma_alloc_coherent(&pdev->dev, TX_TOTAL_SIZE, &ring_dma, + GFP_KERNEL); if (!ring_space) goto err_out_iounmap; np->tx_ring = ring_space; np->tx_ring_dma = ring_dma; - ring_space = pci_alloc_consistent (pdev, RX_TOTAL_SIZE, &ring_dma); + ring_space = dma_alloc_coherent(&pdev->dev, RX_TOTAL_SIZE, &ring_dma, + GFP_KERNEL); if (!ring_space) goto err_out_unmap_tx; np->rx_ring = ring_space; @@ -259,7 +262,7 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) np->link_status = 0; /* Set media and reset PHY */ if (np->phy_media) { - /* default Auto-Negotiation for fiber deivices */ + /* default Auto-Negotiation for fiber devices */ if (np->an_enable == 2) { np->an_enable = 1; } @@ -291,13 +294,14 @@ rio_probe1 (struct pci_dev *pdev, const struct pci_device_id *ent) return 0; err_out_unmap_rx: - pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring, np->rx_ring_dma); + dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, np->rx_ring, + np->rx_ring_dma); err_out_unmap_tx: - pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma); + dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, np->tx_ring, + np->tx_ring_dma); err_out_iounmap: -#ifdef MEM_MAPPING - pci_iounmap(pdev, np->ioaddr); -#endif + if (np->rmon_enable) + pci_iounmap(pdev, np->ioaddr); pci_iounmap(pdev, np->eeprom_addr); err_out_dev: free_netdev (dev); @@ -357,11 +361,10 @@ parse_eeprom (struct net_device *dev) } /* Set MAC address */ - for (i = 0; i < 6; i++) - dev->dev_addr[i] = psrom->mac_addr[i]; + eth_hw_addr_set(dev, psrom->mac_addr); if (np->chip_id == CHIP_IP1000A) { - np->led_mode = psrom->led_mode; + np->led_mode = le16_to_cpu(psrom->led_mode); return 0; } @@ -447,8 +450,9 @@ static void free_list(struct net_device *dev) for (i = 0; i < RX_RING_SIZE; i++) { skb = np->rx_skbuff[i]; if (skb) { - pci_unmap_single(np->pdev, desc_to_dma(&np->rx_ring[i]), - skb->len, PCI_DMA_FROMDEVICE); + dma_unmap_single(&np->pdev->dev, + desc_to_dma(&np->rx_ring[i]), + skb->len, DMA_FROM_DEVICE); dev_kfree_skb(skb); np->rx_skbuff[i] = NULL; } @@ -458,8 +462,9 @@ static void free_list(struct net_device *dev) for (i = 0; i < TX_RING_SIZE; i++) { skb = np->tx_skbuff[i]; if (skb) { - pci_unmap_single(np->pdev, desc_to_dma(&np->tx_ring[i]), - skb->len, PCI_DMA_TODEVICE); + dma_unmap_single(&np->pdev->dev, + desc_to_dma(&np->tx_ring[i]), + skb->len, DMA_TO_DEVICE); dev_kfree_skb(skb); np->tx_skbuff[i] = NULL; } @@ -503,26 +508,34 @@ static int alloc_list(struct net_device *dev) for (i = 0; i < RX_RING_SIZE; i++) { /* Allocated fixed size of skbuff */ struct sk_buff *skb; + dma_addr_t addr; skb = netdev_alloc_skb_ip_align(dev, np->rx_buf_sz); np->rx_skbuff[i] = skb; - if (!skb) { - free_list(dev); - return -ENOMEM; - } + if (!skb) + goto err_free_list; + + addr = dma_map_single(&np->pdev->dev, skb->data, + np->rx_buf_sz, DMA_FROM_DEVICE); + if (dma_mapping_error(&np->pdev->dev, addr)) + goto err_kfree_skb; np->rx_ring[i].next_desc = cpu_to_le64(np->rx_ring_dma + ((i + 1) % RX_RING_SIZE) * sizeof(struct netdev_desc)); /* Rubicon now supports 40 bits of addressing space. */ - np->rx_ring[i].fraginfo = - cpu_to_le64(pci_map_single( - np->pdev, skb->data, np->rx_buf_sz, - PCI_DMA_FROMDEVICE)); + np->rx_ring[i].fraginfo = cpu_to_le64(addr); np->rx_ring[i].fraginfo |= cpu_to_le64((u64)np->rx_buf_sz << 48); } return 0; + +err_kfree_skb: + dev_kfree_skb(np->rx_skbuff[i]); + np->rx_skbuff[i] = NULL; +err_free_list: + free_list(dev); + return -ENOMEM; } static void rio_hw_init(struct net_device *dev) @@ -573,8 +586,7 @@ static void rio_hw_init(struct net_device *dev) * too. However, it doesn't work on IP1000A so we use 16-bit access. */ for (i = 0; i < 3; i++) - dw16(StationAddr0 + 2 * i, - cpu_to_le16(((u16 *)dev->dev_addr)[i])); + dw16(StationAddr0 + 2 * i, get_unaligned_le16(&dev->dev_addr[2 * i])); set_multicast (dev); if (np->coalesce) { @@ -585,7 +597,8 @@ static void rio_hw_init(struct net_device *dev) dw8(TxDMAPollPeriod, 0xff); dw8(RxDMABurstThresh, 0x30); dw8(RxDMAUrgentThresh, 0x30); - dw32(RmonStatMask, 0x0007ffff); + if (!np->rmon_enable) + dw32(RmonStatMask, 0x0007ffff); /* clear statistics */ clear_stats (dev); @@ -657,7 +670,7 @@ static int rio_open(struct net_device *dev) static void rio_timer (struct timer_list *t) { - struct netdev_private *np = from_timer(np, t, timer); + struct netdev_private *np = timer_container_of(np, t, timer); struct net_device *dev = pci_get_drvdata(np->pdev); unsigned int entry; int next_tick = 1*HZ; @@ -684,9 +697,8 @@ rio_timer (struct timer_list *t) } np->rx_skbuff[entry] = skb; np->rx_ring[entry].fraginfo = - cpu_to_le64 (pci_map_single - (np->pdev, skb->data, np->rx_buf_sz, - PCI_DMA_FROMDEVICE)); + cpu_to_le64 (dma_map_single(&np->pdev->dev, skb->data, + np->rx_buf_sz, DMA_FROM_DEVICE)); } np->rx_ring[entry].fraginfo |= cpu_to_le64((u64)np->rx_buf_sz << 48); @@ -699,7 +711,7 @@ rio_timer (struct timer_list *t) } static void -rio_tx_timeout (struct net_device *dev) +rio_tx_timeout (struct net_device *dev, unsigned int txqueue) { struct netdev_private *np = netdev_priv(dev); void __iomem *ioaddr = np->ioaddr; @@ -721,7 +733,7 @@ start_xmit (struct sk_buff *skb, struct net_device *dev) u64 tfc_vlan_tag = 0; if (np->link_status == 0) { /* Link Down */ - dev_kfree_skb(skb); + dev_kfree_skb_any(skb); return NETDEV_TX_OK; } entry = np->cur_tx % TX_RING_SIZE; @@ -740,9 +752,8 @@ start_xmit (struct sk_buff *skb, struct net_device *dev) ((u64)np->vlan << 32) | ((u64)skb->priority << 45); } - txdesc->fraginfo = cpu_to_le64 (pci_map_single (np->pdev, skb->data, - skb->len, - PCI_DMA_TODEVICE)); + txdesc->fraginfo = cpu_to_le64 (dma_map_single(&np->pdev->dev, skb->data, + skb->len, DMA_TO_DEVICE)); txdesc->fraginfo |= cpu_to_le64((u64)skb->len << 48); /* DL2K bug: DMA fails to get next descriptor ptr in 10Mbps mode @@ -824,7 +835,6 @@ rio_free_tx (struct net_device *dev, int irq) { struct netdev_private *np = netdev_priv(dev); int entry = np->old_tx % TX_RING_SIZE; - int tx_use = 0; unsigned long flag = 0; if (irq) @@ -839,17 +849,16 @@ rio_free_tx (struct net_device *dev, int irq) if (!(np->tx_ring[entry].status & cpu_to_le64(TFDDone))) break; skb = np->tx_skbuff[entry]; - pci_unmap_single (np->pdev, - desc_to_dma(&np->tx_ring[entry]), - skb->len, PCI_DMA_TODEVICE); + dma_unmap_single(&np->pdev->dev, + desc_to_dma(&np->tx_ring[entry]), skb->len, + DMA_TO_DEVICE); if (irq) - dev_kfree_skb_irq (skb); + dev_consume_skb_irq(skb); else - dev_kfree_skb (skb); + dev_kfree_skb(skb); np->tx_skbuff[entry] = NULL; entry = (entry + 1) % TX_RING_SIZE; - tx_use++; } if (irq) spin_unlock(&np->tx_lock); @@ -878,8 +887,7 @@ tx_error (struct net_device *dev, int tx_status) frame_id = (tx_status & 0xffff0000); printk (KERN_ERR "%s: Transmit error, TxStatus %4.4x, FrameId %d.\n", dev->name, tx_status, frame_id); - dev->stats.tx_errors++; - /* Ttransmit Underrun */ + /* Transmit Underrun */ if (tx_status & 0x10) { dev->stats.tx_fifo_errors++; dw16(TxStartThresh, dr16(TxStartThresh) + 0x10); @@ -915,9 +923,15 @@ tx_error (struct net_device *dev, int tx_status) rio_set_led_mode(dev); /* Let TxStartThresh stay default value */ } + + spin_lock(&np->stats_lock); /* Maximum Collisions */ if (tx_status & 0x08) dev->stats.collisions++; + + dev->stats.tx_errors++; + spin_unlock(&np->stats_lock); + /* Restart the Tx */ dw32(MACCtrl, dr16(MACCtrl) | TxEnable); } @@ -959,27 +973,30 @@ receive_packet (struct net_device *dev) } else { struct sk_buff *skb; + skb = NULL; /* Small skbuffs for short packets */ - if (pkt_len > copy_thresh) { - pci_unmap_single (np->pdev, - desc_to_dma(desc), - np->rx_buf_sz, - PCI_DMA_FROMDEVICE); + if (pkt_len <= copy_thresh) + skb = netdev_alloc_skb_ip_align(dev, pkt_len); + if (!skb) { + dma_unmap_single(&np->pdev->dev, + desc_to_dma(desc), + np->rx_buf_sz, + DMA_FROM_DEVICE); skb_put (skb = np->rx_skbuff[entry], pkt_len); np->rx_skbuff[entry] = NULL; - } else if ((skb = netdev_alloc_skb_ip_align(dev, pkt_len))) { - pci_dma_sync_single_for_cpu(np->pdev, - desc_to_dma(desc), - np->rx_buf_sz, - PCI_DMA_FROMDEVICE); + } else { + dma_sync_single_for_cpu(&np->pdev->dev, + desc_to_dma(desc), + np->rx_buf_sz, + DMA_FROM_DEVICE); skb_copy_to_linear_data (skb, np->rx_skbuff[entry]->data, pkt_len); skb_put (skb, pkt_len); - pci_dma_sync_single_for_device(np->pdev, - desc_to_dma(desc), - np->rx_buf_sz, - PCI_DMA_FROMDEVICE); + dma_sync_single_for_device(&np->pdev->dev, + desc_to_dma(desc), + np->rx_buf_sz, + DMA_FROM_DEVICE); } skb->protocol = eth_type_trans (skb, dev); #if 0 @@ -1012,9 +1029,8 @@ receive_packet (struct net_device *dev) } np->rx_skbuff[entry] = skb; np->rx_ring[entry].fraginfo = - cpu_to_le64 (pci_map_single - (np->pdev, skb->data, np->rx_buf_sz, - PCI_DMA_FROMDEVICE)); + cpu_to_le64(dma_map_single(&np->pdev->dev, skb->data, + np->rx_buf_sz, DMA_FROM_DEVICE)); } np->rx_ring[entry].fraginfo |= cpu_to_le64((u64)np->rx_buf_sz << 48); @@ -1067,7 +1083,7 @@ rio_error (struct net_device *dev, int int_status) get_stats (dev); } - /* PCI Error, a catastronphic error related to the bus interface + /* PCI Error, a catastrophic error related to the bus interface occurs, set GlobalReset and HostReset to reset. */ if (int_status & HostError) { printk (KERN_ERR "%s: HostError! IntStatus %4.4x.\n", @@ -1083,11 +1099,10 @@ get_stats (struct net_device *dev) { struct netdev_private *np = netdev_priv(dev); void __iomem *ioaddr = np->ioaddr; -#ifdef MEM_MAPPING - int i; -#endif unsigned int stat_reg; + unsigned long flags; + spin_lock_irqsave(&np->stats_lock, flags); /* All statistics registers need to be acknowledged, else statistic overflow could cause problems */ @@ -1096,7 +1111,7 @@ get_stats (struct net_device *dev) dev->stats.rx_bytes += dr32(OctetRcvOk); dev->stats.tx_bytes += dr32(OctetXmtOk); - dev->stats.multicast = dr32(McstFramesRcvdOk); + dev->stats.multicast += dr32(McstFramesRcvdOk); dev->stats.collisions += dr32(SingleColFrames) + dr32(MultiColFrames); @@ -1128,15 +1143,18 @@ get_stats (struct net_device *dev) dr16(MacControlFramesXmtd); dr16(FramesWEXDeferal); -#ifdef MEM_MAPPING - for (i = 0x100; i <= 0x150; i += 4) - dr32(i); -#endif + if (np->rmon_enable) + for (int i = 0x100; i <= 0x150; i += 4) + dr32(i); + dr16(TxJumboFrames); dr16(RxJumboFrames); dr16(TCPCheckSumErrors); dr16(UDPCheckSumErrors); dr16(IPCheckSumErrors); + + spin_unlock_irqrestore(&np->stats_lock, flags); + return &dev->stats; } @@ -1145,9 +1163,6 @@ clear_stats (struct net_device *dev) { struct netdev_private *np = netdev_priv(dev); void __iomem *ioaddr = np->ioaddr; -#ifdef MEM_MAPPING - int i; -#endif /* All statistics registers need to be acknowledged, else statistic overflow could cause problems */ @@ -1183,10 +1198,9 @@ clear_stats (struct net_device *dev) dr16(BcstFramesXmtdOk); dr16(MacControlFramesXmtd); dr16(FramesWEXDeferal); -#ifdef MEM_MAPPING - for (i = 0x100; i <= 0x150; i += 4) - dr32(i); -#endif + if (np->rmon_enable) + for (int i = 0x100; i <= 0x150; i += 4) + dr32(i); dr16(TxJumboFrames); dr16(RxJumboFrames); dr16(TCPCheckSumErrors); @@ -1246,9 +1260,8 @@ static void rio_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info { struct netdev_private *np = netdev_priv(dev); - strlcpy(info->driver, "dl2k", sizeof(info->driver)); - strlcpy(info->version, DRV_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info)); + strscpy(info->driver, "dl2k", sizeof(info->driver)); + strscpy(info->bus_info, pci_name(np->pdev), sizeof(info->bus_info)); } static int rio_get_link_ksettings(struct net_device *dev, @@ -1793,7 +1806,7 @@ rio_close (struct net_device *dev) rio_hw_stop(dev); free_irq(pdev->irq, dev); - del_timer_sync (&np->timer); + timer_delete_sync(&np->timer); free_list(dev); @@ -1809,13 +1822,12 @@ rio_remove1 (struct pci_dev *pdev) struct netdev_private *np = netdev_priv(dev); unregister_netdev (dev); - pci_free_consistent (pdev, RX_TOTAL_SIZE, np->rx_ring, - np->rx_ring_dma); - pci_free_consistent (pdev, TX_TOTAL_SIZE, np->tx_ring, - np->tx_ring_dma); -#ifdef MEM_MAPPING - pci_iounmap(pdev, np->ioaddr); -#endif + dma_free_coherent(&pdev->dev, RX_TOTAL_SIZE, np->rx_ring, + np->rx_ring_dma); + dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE, np->tx_ring, + np->tx_ring_dma); + if (np->rmon_enable) + pci_iounmap(pdev, np->ioaddr); pci_iounmap(pdev, np->eeprom_addr); free_netdev (dev); pci_release_regions (pdev); @@ -1833,7 +1845,7 @@ static int rio_suspend(struct device *device) return 0; netif_device_detach(dev); - del_timer_sync(&np->timer); + timer_delete_sync(&np->timer); rio_hw_stop(dev); return 0; @@ -1857,7 +1869,7 @@ static int rio_resume(struct device *device) return 0; } -static SIMPLE_DEV_PM_OPS(rio_pm_ops, rio_suspend, rio_resume); +static DEFINE_SIMPLE_DEV_PM_OPS(rio_pm_ops, rio_suspend, rio_resume); #define RIO_PM_OPS (&rio_pm_ops) #else @@ -1875,13 +1887,5 @@ static struct pci_driver rio_driver = { }; module_pci_driver(rio_driver); -/* - -Compile command: - -gcc -D__KERNEL__ -DMODULE -I/usr/src/linux/include -Wall -Wstrict-prototypes -O2 -c dl2k.c - -Read Documentation/networking/device_drivers/dlink/dl2k.txt for details. - -*/ +/* Read Documentation/networking/device_drivers/ethernet/dlink/dl2k.rst. */ |