Release 4.11 drivers/net/ethernet/rdc/r6040.c
/*
* RDC R6040 Fast Ethernet MAC support
*
* Copyright (C) 2004 Sten Wang <sten.wang@rdc.com.tw>
* Copyright (C) 2007
* Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
* Copyright (C) 2007-2012 Florian Fainelli <f.fainelli@gmail.com>
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/delay.h>
#include <linux/mii.h>
#include <linux/ethtool.h>
#include <linux/crc32.h>
#include <linux/spinlock.h>
#include <linux/bitops.h>
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/uaccess.h>
#include <linux/phy.h>
#include <asm/processor.h>
#define DRV_NAME "r6040"
#define DRV_VERSION "0.29"
#define DRV_RELDATE "04Jul2016"
/* Time in jiffies before concluding the transmitter is hung. */
#define TX_TIMEOUT (6000 * HZ / 1000)
/* RDC MAC I/O Size */
#define R6040_IO_SIZE 256
/* MAX RDC MAC */
#define MAX_MAC 2
/* MAC registers */
#define MCR0 0x00
/* Control register 0 */
#define MCR0_RCVEN 0x0002
/* Receive enable */
#define MCR0_PROMISC 0x0020
/* Promiscuous mode */
#define MCR0_HASH_EN 0x0100
/* Enable multicast hash table function */
#define MCR0_XMTEN 0x1000
/* Transmission enable */
#define MCR0_FD 0x8000
/* Full/Half duplex */
#define MCR1 0x04
/* Control register 1 */
#define MAC_RST 0x0001
/* Reset the MAC */
#define MBCR 0x08
/* Bus control */
#define MT_ICR 0x0C
/* TX interrupt control */
#define MR_ICR 0x10
/* RX interrupt control */
#define MTPR 0x14
/* TX poll command register */
#define TM2TX 0x0001
/* Trigger MAC to transmit */
#define MR_BSR 0x18
/* RX buffer size */
#define MR_DCR 0x1A
/* RX descriptor control */
#define MLSR 0x1C
/* Last status */
#define TX_FIFO_UNDR 0x0200
/* TX FIFO under-run */
#define TX_EXCEEDC 0x2000
/* Transmit exceed collision */
#define TX_LATEC 0x4000
/* Transmit late collision */
#define MMDIO 0x20
/* MDIO control register */
#define MDIO_WRITE 0x4000
/* MDIO write */
#define MDIO_READ 0x2000
/* MDIO read */
#define MMRD 0x24
/* MDIO read data register */
#define MMWD 0x28
/* MDIO write data register */
#define MTD_SA0 0x2C
/* TX descriptor start address 0 */
#define MTD_SA1 0x30
/* TX descriptor start address 1 */
#define MRD_SA0 0x34
/* RX descriptor start address 0 */
#define MRD_SA1 0x38
/* RX descriptor start address 1 */
#define MISR 0x3C
/* Status register */
#define MIER 0x40
/* INT enable register */
#define MSK_INT 0x0000
/* Mask off interrupts */
#define RX_FINISH 0x0001
/* RX finished */
#define RX_NO_DESC 0x0002
/* No RX descriptor available */
#define RX_FIFO_FULL 0x0004
/* RX FIFO full */
#define RX_EARLY 0x0008
/* RX early */
#define TX_FINISH 0x0010
/* TX finished */
#define TX_EARLY 0x0080
/* TX early */
#define EVENT_OVRFL 0x0100
/* Event counter overflow */
#define LINK_CHANGED 0x0200
/* PHY link changed */
#define ME_CISR 0x44
/* Event counter INT status */
#define ME_CIER 0x48
/* Event counter INT enable */
#define MR_CNT 0x50
/* Successfully received packet counter */
#define ME_CNT0 0x52
/* Event counter 0 */
#define ME_CNT1 0x54
/* Event counter 1 */
#define ME_CNT2 0x56
/* Event counter 2 */
#define ME_CNT3 0x58
/* Event counter 3 */
#define MT_CNT 0x5A
/* Successfully transmit packet counter */
#define ME_CNT4 0x5C
/* Event counter 4 */
#define MP_CNT 0x5E
/* Pause frame counter register */
#define MAR0 0x60
/* Hash table 0 */
#define MAR1 0x62
/* Hash table 1 */
#define MAR2 0x64
/* Hash table 2 */
#define MAR3 0x66
/* Hash table 3 */
#define MID_0L 0x68
/* Multicast address MID0 Low */
#define MID_0M 0x6A
/* Multicast address MID0 Medium */
#define MID_0H 0x6C
/* Multicast address MID0 High */
#define MID_1L 0x70
/* MID1 Low */
#define MID_1M 0x72
/* MID1 Medium */
#define MID_1H 0x74
/* MID1 High */
#define MID_2L 0x78
/* MID2 Low */
#define MID_2M 0x7A
/* MID2 Medium */
#define MID_2H 0x7C
/* MID2 High */
#define MID_3L 0x80
/* MID3 Low */
#define MID_3M 0x82
/* MID3 Medium */
#define MID_3H 0x84
/* MID3 High */
#define PHY_CC 0x88
/* PHY status change configuration register */
#define SCEN 0x8000
/* PHY status change enable */
#define PHYAD_SHIFT 8
/* PHY address shift */
#define TMRDIV_SHIFT 0
/* Timer divider shift */
#define PHY_ST 0x8A
/* PHY status register */
#define MAC_SM 0xAC
/* MAC status machine */
#define MAC_SM_RST 0x0002
/* MAC status machine reset */
#define MAC_ID 0xBE
/* Identifier register */
#define TX_DCNT 0x80
/* TX descriptor count */
#define RX_DCNT 0x80
/* RX descriptor count */
#define MAX_BUF_SIZE 0x600
#define RX_DESC_SIZE (RX_DCNT * sizeof(struct r6040_descriptor))
#define TX_DESC_SIZE (TX_DCNT * sizeof(struct r6040_descriptor))
#define MBCR_DEFAULT 0x012A
/* MAC Bus Control Register */
#define MCAST_MAX 3
/* Max number multicast addresses to filter */
#define MAC_DEF_TIMEOUT 2048
/* Default MAC read/write operation timeout */
/* Descriptor status */
#define DSC_OWNER_MAC 0x8000
/* MAC is the owner of this descriptor */
#define DSC_RX_OK 0x4000
/* RX was successful */
#define DSC_RX_ERR 0x0800
/* RX PHY error */
#define DSC_RX_ERR_DRI 0x0400
/* RX dribble packet */
#define DSC_RX_ERR_BUF 0x0200
/* RX length exceeds buffer size */
#define DSC_RX_ERR_LONG 0x0100
/* RX length > maximum packet length */
#define DSC_RX_ERR_RUNT 0x0080
/* RX packet length < 64 byte */
#define DSC_RX_ERR_CRC 0x0040
/* RX CRC error */
#define DSC_RX_BCAST 0x0020
/* RX broadcast (no error) */
#define DSC_RX_MCAST 0x0010
/* RX multicast (no error) */
#define DSC_RX_MCH_HIT 0x0008
/* RX multicast hit in hash table (no error) */
#define DSC_RX_MIDH_HIT 0x0004
/* RX MID table hit (no error) */
#define DSC_RX_IDX_MID_MASK 3
/* RX mask for the index of matched MIDx */
MODULE_AUTHOR("Sten Wang <sten.wang@rdc.com.tw>,"
"Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>,"
"Florian Fainelli <f.fainelli@gmail.com>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("RDC R6040 NAPI PCI FastEthernet driver");
MODULE_VERSION(DRV_VERSION " " DRV_RELDATE);
/* RX and TX interrupts that we handle */
#define RX_INTS (RX_FIFO_FULL | RX_NO_DESC | RX_FINISH)
#define TX_INTS (TX_FINISH)
#define INT_MASK (RX_INTS | TX_INTS)
struct r6040_descriptor {
u16 status, len; /* 0-3 */
__le32 buf; /* 4-7 */
__le32 ndesc; /* 8-B */
u32 rev1; /* C-F */
char *vbufp; /* 10-13 */
struct r6040_descriptor *vndescp; /* 14-17 */
struct sk_buff *skb_ptr; /* 18-1B */
u32 rev2; /* 1C-1F */
} __aligned(32);
struct r6040_private {
spinlock_t lock; /* driver lock */
struct pci_dev *pdev;
struct r6040_descriptor *rx_insert_ptr;
struct r6040_descriptor *rx_remove_ptr;
struct r6040_descriptor *tx_insert_ptr;
struct r6040_descriptor *tx_remove_ptr;
struct r6040_descriptor *rx_ring;
struct r6040_descriptor *tx_ring;
dma_addr_t rx_ring_dma;
dma_addr_t tx_ring_dma;
u16 tx_free_desc;
u16 mcr0;
struct net_device *dev;
struct mii_bus *mii_bus;
struct napi_struct napi;
void __iomem *base;
int old_link;
int old_duplex;
};
static char version[] = DRV_NAME
": RDC R6040 NAPI net driver,"
"version "DRV_VERSION " (" DRV_RELDATE ")";
/* Read a word data from PHY Chip */
static int r6040_phy_read(void __iomem *ioaddr, int phy_addr, int reg)
{
int limit = MAC_DEF_TIMEOUT;
u16 cmd;
iowrite16(MDIO_READ + reg + (phy_addr << 8), ioaddr + MMDIO);
/* Wait for the read bit to be cleared */
while (limit--) {
cmd = ioread16(ioaddr + MMDIO);
if (!(cmd & MDIO_READ))
break;
udelay(1);
}
if (limit < 0)
return -ETIMEDOUT;
return ioread16(ioaddr + MMRD);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 72 | 78.26% | 1 | 16.67% |
Florian Fainelli | 17 | 18.48% | 4 | 66.67% |
Joe Chou | 3 | 3.26% | 1 | 16.67% |
Total | 92 | 100.00% | 6 | 100.00% |
/* Write a word data from PHY Chip */
static int r6040_phy_write(void __iomem *ioaddr,
int phy_addr, int reg, u16 val)
{
int limit = MAC_DEF_TIMEOUT;
u16 cmd;
iowrite16(val, ioaddr + MMWD);
/* Write the command to the MDIO bus */
iowrite16(MDIO_WRITE + reg + (phy_addr << 8), ioaddr + MMDIO);
/* Wait for the write bit to be cleared */
while (limit--) {
cmd = ioread16(ioaddr + MMDIO);
if (!(cmd & MDIO_WRITE))
break;
udelay(1);
}
return (limit < 0) ? -ETIMEDOUT : 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 76 | 76.77% | 1 | 16.67% |
Florian Fainelli | 20 | 20.20% | 4 | 66.67% |
Joe Chou | 3 | 3.03% | 1 | 16.67% |
Total | 99 | 100.00% | 6 | 100.00% |
static int r6040_mdiobus_read(struct mii_bus *bus, int phy_addr, int reg)
{
struct net_device *dev = bus->priv;
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
return r6040_phy_read(ioaddr, phy_addr, reg);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 41 | 74.55% | 1 | 33.33% |
Florian Fainelli | 14 | 25.45% | 2 | 66.67% |
Total | 55 | 100.00% | 3 | 100.00% |
static int r6040_mdiobus_write(struct mii_bus *bus, int phy_addr,
int reg, u16 value)
{
struct net_device *dev = bus->priv;
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
return r6040_phy_write(ioaddr, phy_addr, reg, value);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 39 | 65.00% | 1 | 25.00% |
Florian Fainelli | 21 | 35.00% | 3 | 75.00% |
Total | 60 | 100.00% | 4 | 100.00% |
static void r6040_free_txbufs(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
int i;
for (i = 0; i < TX_DCNT; i++) {
if (lp->tx_insert_ptr->skb_ptr) {
pci_unmap_single(lp->pdev,
le32_to_cpu(lp->tx_insert_ptr->buf),
MAX_BUF_SIZE, PCI_DMA_TODEVICE);
dev_kfree_skb(lp->tx_insert_ptr->skb_ptr);
lp->tx_insert_ptr->skb_ptr = NULL;
}
lp->tx_insert_ptr = lp->tx_insert_ptr->vndescp;
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 93 | 96.88% | 2 | 66.67% |
Al Viro | 3 | 3.12% | 1 | 33.33% |
Total | 96 | 100.00% | 3 | 100.00% |
static void r6040_free_rxbufs(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
int i;
for (i = 0; i < RX_DCNT; i++) {
if (lp->rx_insert_ptr->skb_ptr) {
pci_unmap_single(lp->pdev,
le32_to_cpu(lp->rx_insert_ptr->buf),
MAX_BUF_SIZE, PCI_DMA_FROMDEVICE);
dev_kfree_skb(lp->rx_insert_ptr->skb_ptr);
lp->rx_insert_ptr->skb_ptr = NULL;
}
lp->rx_insert_ptr = lp->rx_insert_ptr->vndescp;
}
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 93 | 96.88% | 1 | 50.00% |
Al Viro | 3 | 3.12% | 1 | 50.00% |
Total | 96 | 100.00% | 2 | 100.00% |
static void r6040_init_ring_desc(struct r6040_descriptor *desc_ring,
dma_addr_t desc_dma, int size)
{
struct r6040_descriptor *desc = desc_ring;
dma_addr_t mapping = desc_dma;
while (size-- > 0) {
mapping += sizeof(*desc);
desc->ndesc = cpu_to_le32(mapping);
desc->vndescp = desc + 1;
desc++;
}
desc--;
desc->ndesc = cpu_to_le32(desc_dma);
desc->vndescp = desc_ring;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 84 | 100.00% | 1 | 100.00% |
Total | 84 | 100.00% | 1 | 100.00% |
static void r6040_init_txbufs(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
lp->tx_free_desc = TX_DCNT;
lp->tx_remove_ptr = lp->tx_insert_ptr = lp->tx_ring;
r6040_init_ring_desc(lp->tx_ring, lp->tx_ring_dma, TX_DCNT);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 52 | 100.00% | 2 | 100.00% |
Total | 52 | 100.00% | 2 | 100.00% |
static int r6040_alloc_rxbufs(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
struct r6040_descriptor *desc;
struct sk_buff *skb;
int rc;
lp->rx_remove_ptr = lp->rx_insert_ptr = lp->rx_ring;
r6040_init_ring_desc(lp->rx_ring, lp->rx_ring_dma, RX_DCNT);
/* Allocate skbs for the rx descriptors */
desc = lp->rx_ring;
do {
skb = netdev_alloc_skb(dev, MAX_BUF_SIZE);
if (!skb) {
rc = -ENOMEM;
goto err_exit;
}
desc->skb_ptr = skb;
desc->buf = cpu_to_le32(pci_map_single(lp->pdev,
desc->skb_ptr->data,
MAX_BUF_SIZE, PCI_DMA_FROMDEVICE));
desc->status = DSC_OWNER_MAC;
desc = desc->vndescp;
} while (desc != lp->rx_ring);
return 0;
err_exit:
/* Deallocate all previously allocated skbs */
r6040_free_rxbufs(dev);
return rc;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 134 | 84.81% | 4 | 80.00% |
Sten Wang | 24 | 15.19% | 1 | 20.00% |
Total | 158 | 100.00% | 5 | 100.00% |
static void r6040_reset_mac(struct r6040_private *lp)
{
void __iomem *ioaddr = lp->base;
int limit = MAC_DEF_TIMEOUT;
u16 cmd;
iowrite16(MAC_RST, ioaddr + MCR1);
while (limit--) {
cmd = ioread16(ioaddr + MCR1);
if (cmd & MAC_RST)
break;
}
/* Reset internal state machine */
iowrite16(MAC_SM_RST, ioaddr + MAC_SM);
iowrite16(0, ioaddr + MAC_SM);
mdelay(5);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 84 | 100.00% | 6 | 100.00% |
Total | 84 | 100.00% | 6 | 100.00% |
static void r6040_init_mac_regs(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
/* Mask Off Interrupt */
iowrite16(MSK_INT, ioaddr + MIER);
/* Reset RDC MAC */
r6040_reset_mac(lp);
/* MAC Bus Control Register */
iowrite16(MBCR_DEFAULT, ioaddr + MBCR);
/* Buffer Size Register */
iowrite16(MAX_BUF_SIZE, ioaddr + MR_BSR);
/* Write TX ring start address */
iowrite16(lp->tx_ring_dma, ioaddr + MTD_SA0);
iowrite16(lp->tx_ring_dma >> 16, ioaddr + MTD_SA1);
/* Write RX ring start address */
iowrite16(lp->rx_ring_dma, ioaddr + MRD_SA0);
iowrite16(lp->rx_ring_dma >> 16, ioaddr + MRD_SA1);
/* Set interrupt waiting time and packet numbers */
iowrite16(0, ioaddr + MT_ICR);
iowrite16(0, ioaddr + MR_ICR);
/* Enable interrupts */
iowrite16(INT_MASK, ioaddr + MIER);
/* Enable TX and RX */
iowrite16(lp->mcr0 | MCR0_RCVEN, ioaddr);
/* Let TX poll the descriptors
* we may got called by r6040_tx_timeout which has left
* some unsent tx buffers */
iowrite16(TM2TX, ioaddr + MTPR);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 155 | 92.81% | 6 | 85.71% |
Sten Wang | 12 | 7.19% | 1 | 14.29% |
Total | 167 | 100.00% | 7 | 100.00% |
static void r6040_tx_timeout(struct net_device *dev)
{
struct r6040_private *priv = netdev_priv(dev);
void __iomem *ioaddr = priv->base;
netdev_warn(dev, "transmit timed out, int enable %4.4x "
"status %4.4x\n",
ioread16(ioaddr + MIER),
ioread16(ioaddr + MISR));
dev->stats.tx_errors++;
/* Reset MAC and re-init all registers */
r6040_init_mac_regs(dev);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 65 | 100.00% | 4 | 100.00% |
Total | 65 | 100.00% | 4 | 100.00% |
static struct net_device_stats *r6040_get_stats(struct net_device *dev)
{
struct r6040_private *priv = netdev_priv(dev);
void __iomem *ioaddr = priv->base;
unsigned long flags;
spin_lock_irqsave(&priv->lock, flags);
dev->stats.rx_crc_errors += ioread8(ioaddr + ME_CNT1);
dev->stats.multicast += ioread8(ioaddr + ME_CNT0);
spin_unlock_irqrestore(&priv->lock, flags);
return &dev->stats;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 85 | 96.59% | 1 | 50.00% |
Florian Fainelli | 3 | 3.41% | 1 | 50.00% |
Total | 88 | 100.00% | 2 | 100.00% |
/* Stop RDC MAC and Free the allocated resource */
static void r6040_down(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
u16 *adrp;
/* Stop MAC */
iowrite16(MSK_INT, ioaddr + MIER); /* Mask Off Interrupt */
/* Reset RDC MAC */
r6040_reset_mac(lp);
/* Restore MAC Address to MIDx */
adrp = (u16 *) dev->dev_addr;
iowrite16(adrp[0], ioaddr + MID_0L);
iowrite16(adrp[1], ioaddr + MID_0M);
iowrite16(adrp[2], ioaddr + MID_0H);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 79 | 80.61% | 1 | 33.33% |
Florian Fainelli | 19 | 19.39% | 2 | 66.67% |
Total | 98 | 100.00% | 3 | 100.00% |
static int r6040_close(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
struct pci_dev *pdev = lp->pdev;
phy_stop(dev->phydev);
napi_disable(&lp->napi);
netif_stop_queue(dev);
spin_lock_irq(&lp->lock);
r6040_down(dev);
/* Free RX buffer */
r6040_free_rxbufs(dev);
/* Free TX buffer */
r6040_free_txbufs(dev);
spin_unlock_irq(&lp->lock);
free_irq(dev->irq, dev);
/* Free Descriptor memory */
if (lp->rx_ring) {
pci_free_consistent(pdev,
RX_DESC_SIZE, lp->rx_ring, lp->rx_ring_dma);
lp->rx_ring = NULL;
}
if (lp->tx_ring) {
pci_free_consistent(pdev,
TX_DESC_SIZE, lp->tx_ring, lp->tx_ring_dma);
lp->tx_ring = NULL;
}
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 90 | 58.44% | 2 | 40.00% |
Sten Wang | 44 | 28.57% | 1 | 20.00% |
Manuel Bessler | 18 | 11.69% | 1 | 20.00% |
Hannes Eder | 2 | 1.30% | 1 | 20.00% |
Total | 154 | 100.00% | 5 | 100.00% |
static int r6040_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
if (!dev->phydev)
return -EINVAL;
return phy_mii_ioctl(dev->phydev, rq, cmd);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 21 | 50.00% | 1 | 33.33% |
Florian Fainelli | 19 | 45.24% | 1 | 33.33% |
Philippe Reynes | 2 | 4.76% | 1 | 33.33% |
Total | 42 | 100.00% | 3 | 100.00% |
static int r6040_rx(struct net_device *dev, int limit)
{
struct r6040_private *priv = netdev_priv(dev);
struct r6040_descriptor *descptr = priv->rx_remove_ptr;
struct sk_buff *skb_ptr, *new_skb;
int count = 0;
u16 err;
/* Limit not reached and the descriptor belongs to the CPU */
while (count < limit && !(descptr->status & DSC_OWNER_MAC)) {
/* Read the descriptor status */
err = descptr->status;
/* Global error status set */
if (err & DSC_RX_ERR) {
/* RX dribble */
if (err & DSC_RX_ERR_DRI)
dev->stats.rx_frame_errors++;
/* Buffer length exceeded */
if (err & DSC_RX_ERR_BUF)
dev->stats.rx_length_errors++;
/* Packet too long */
if (err & DSC_RX_ERR_LONG)
dev->stats.rx_length_errors++;
/* Packet < 64 bytes */
if (err & DSC_RX_ERR_RUNT)
dev->stats.rx_length_errors++;
/* CRC error */
if (err & DSC_RX_ERR_CRC) {
spin_lock(&priv->lock);
dev->stats.rx_crc_errors++;
spin_unlock(&priv->lock);
}
goto next_descr;
}
/* Packet successfully received */
new_skb = netdev_alloc_skb(dev, MAX_BUF_SIZE);
if (!new_skb) {
dev->stats.rx_dropped++;
goto next_descr;
}
skb_ptr = descptr->skb_ptr;
skb_ptr->dev = priv->dev;
/* Do not count the CRC */
skb_put(skb_ptr, descptr->len - 4);
pci_unmap_single(priv->pdev, le32_to_cpu(descptr->buf),
MAX_BUF_SIZE, PCI_DMA_FROMDEVICE);
skb_ptr->protocol = eth_type_trans(skb_ptr, priv->dev);
/* Send to upper layer */
netif_receive_skb(skb_ptr);
dev->stats.rx_packets++;
dev->stats.rx_bytes += descptr->len - 4;
/* put new skb into descriptor */
descptr->skb_ptr = new_skb;
descptr->buf = cpu_to_le32(pci_map_single(priv->pdev,
descptr->skb_ptr->data,
MAX_BUF_SIZE, PCI_DMA_FROMDEVICE));
next_descr:
/* put the descriptor back to the MAC */
descptr->status = DSC_OWNER_MAC;
descptr = descptr->vndescp;
count++;
}
priv->rx_remove_ptr = descptr;
return count;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 217 | 63.64% | 1 | 14.29% |
Florian Fainelli | 120 | 35.19% | 4 | 57.14% |
Al Viro | 3 | 0.88% | 1 | 14.29% |
Lucas De Marchi | 1 | 0.29% | 1 | 14.29% |
Total | 341 | 100.00% | 7 | 100.00% |
static void r6040_tx(struct net_device *dev)
{
struct r6040_private *priv = netdev_priv(dev);
struct r6040_descriptor *descptr;
void __iomem *ioaddr = priv->base;
struct sk_buff *skb_ptr;
u16 err;
spin_lock(&priv->lock);
descptr = priv->tx_remove_ptr;
while (priv->tx_free_desc < TX_DCNT) {
/* Check for errors */
err = ioread16(ioaddr + MLSR);
if (err & TX_FIFO_UNDR)
dev->stats.tx_fifo_errors++;
if (err & (TX_EXCEEDC | TX_LATEC))
dev->stats.tx_carrier_errors++;
if (descptr->status & DSC_OWNER_MAC)
break; /* Not complete */
skb_ptr = descptr->skb_ptr;
/* Statistic Counter */
dev->stats.tx_packets++;
dev->stats.tx_bytes += skb_ptr->len;
pci_unmap_single(priv->pdev, le32_to_cpu(descptr->buf),
skb_ptr->len, PCI_DMA_TODEVICE);
/* Free buffer */
dev_kfree_skb(skb_ptr);
descptr->skb_ptr = NULL;
/* To next descriptor */
descptr = descptr->vndescp;
priv->tx_free_desc++;
}
priv->tx_remove_ptr = descptr;
if (priv->tx_free_desc)
netif_wake_queue(dev);
spin_unlock(&priv->lock);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 180 | 85.71% | 1 | 11.11% |
Florian Fainelli | 27 | 12.86% | 7 | 77.78% |
Al Viro | 3 | 1.43% | 1 | 11.11% |
Total | 210 | 100.00% | 9 | 100.00% |
static int r6040_poll(struct napi_struct *napi, int budget)
{
struct r6040_private *priv =
container_of(napi, struct r6040_private, napi);
struct net_device *dev = priv->dev;
void __iomem *ioaddr = priv->base;
int work_done;
r6040_tx(dev);
work_done = r6040_rx(dev, budget);
if (work_done < budget) {
napi_complete_done(napi, work_done);
/* Enable RX/TX interrupt */
iowrite16(ioread16(ioaddr + MIER) | RX_INTS | TX_INTS,
ioaddr + MIER);
}
return work_done;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 89 | 88.12% | 1 | 25.00% |
Florian Fainelli | 12 | 11.88% | 3 | 75.00% |
Total | 101 | 100.00% | 4 | 100.00% |
/* The RDC interrupt handler. */
static irqreturn_t r6040_interrupt(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
u16 misr, status;
/* Save MIER */
misr = ioread16(ioaddr + MIER);
/* Mask off RDC MAC interrupt */
iowrite16(MSK_INT, ioaddr + MIER);
/* Read MISR status and clear */
status = ioread16(ioaddr + MISR);
if (status == 0x0000 || status == 0xffff) {
/* Restore RDC MAC interrupt */
iowrite16(misr, ioaddr + MIER);
return IRQ_NONE;
}
/* RX interrupt request */
if (status & (RX_INTS | TX_INTS)) {
if (status & RX_NO_DESC) {
/* RX descriptor unavailable */
dev->stats.rx_dropped++;
dev->stats.rx_missed_errors++;
}
if (status & RX_FIFO_FULL)
dev->stats.rx_fifo_errors++;
if (likely(napi_schedule_prep(&lp->napi))) {
/* Mask off RX interrupt */
misr &= ~(RX_INTS | TX_INTS);
__napi_schedule_irqoff(&lp->napi);
}
}
/* Restore RDC MAC interrupt */
iowrite16(misr, ioaddr + MIER);
return IRQ_HANDLED;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 92 | 47.42% | 1 | 11.11% |
Florian Fainelli | 63 | 32.47% | 6 | 66.67% |
Joe Chou | 24 | 12.37% | 1 | 11.11% |
Michael Thalmeier | 15 | 7.73% | 1 | 11.11% |
Total | 194 | 100.00% | 9 | 100.00% |
#ifdef CONFIG_NET_POLL_CONTROLLER
static void r6040_poll_controller(struct net_device *dev)
{
disable_irq(dev->irq);
r6040_interrupt(dev->irq, dev);
enable_irq(dev->irq);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 34 | 100.00% | 1 | 100.00% |
Total | 34 | 100.00% | 1 | 100.00% |
#endif
/* Init RDC MAC */
static int r6040_up(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
int ret;
/* Initialise and alloc RX/TX buffers */
r6040_init_txbufs(dev);
ret = r6040_alloc_rxbufs(dev);
if (ret)
return ret;
/* improve performance (by RDC guys) */
r6040_phy_write(ioaddr, 30, 17,
(r6040_phy_read(ioaddr, 30, 17) | 0x4000));
r6040_phy_write(ioaddr, 30, 17,
~((~r6040_phy_read(ioaddr, 30, 17)) | 0x2000));
r6040_phy_write(ioaddr, 0, 19, 0x0000);
r6040_phy_write(ioaddr, 0, 30, 0x01F0);
/* Initialize all MAC registers */
r6040_init_mac_regs(dev);
phy_start(dev->phydev);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 104 | 74.29% | 1 | 14.29% |
Florian Fainelli | 35 | 25.00% | 5 | 71.43% |
Philippe Reynes | 1 | 0.71% | 1 | 14.29% |
Total | 140 | 100.00% | 7 | 100.00% |
/* Read/set MAC address routines */
static void r6040_mac_address(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
u16 *adrp;
/* Reset MAC */
r6040_reset_mac(lp);
/* Restore MAC Address */
adrp = (u16 *) dev->dev_addr;
iowrite16(adrp[0], ioaddr + MID_0L);
iowrite16(adrp[1], ioaddr + MID_0M);
iowrite16(adrp[2], ioaddr + MID_0H);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 79 | 90.80% | 1 | 25.00% |
Florian Fainelli | 8 | 9.20% | 3 | 75.00% |
Total | 87 | 100.00% | 4 | 100.00% |
static int r6040_open(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
int ret;
/* Request IRQ and Register interrupt handler */
ret = request_irq(dev->irq, r6040_interrupt,
IRQF_SHARED, dev->name, dev);
if (ret)
goto out;
/* Set MAC address */
r6040_mac_address(dev);
/* Allocate Descriptor memory */
lp->rx_ring =
pci_alloc_consistent(lp->pdev, RX_DESC_SIZE, &lp->rx_ring_dma);
if (!lp->rx_ring) {
ret = -ENOMEM;
goto err_free_irq;
}
lp->tx_ring =
pci_alloc_consistent(lp->pdev, TX_DESC_SIZE, &lp->tx_ring_dma);
if (!lp->tx_ring) {
ret = -ENOMEM;
goto err_free_rx_ring;
}
ret = r6040_up(dev);
if (ret)
goto err_free_tx_ring;
napi_enable(&lp->napi);
netif_start_queue(dev);
return 0;
err_free_tx_ring:
pci_free_consistent(lp->pdev, TX_DESC_SIZE, lp->tx_ring,
lp->tx_ring_dma);
err_free_rx_ring:
pci_free_consistent(lp->pdev, RX_DESC_SIZE, lp->rx_ring,
lp->rx_ring_dma);
err_free_irq:
free_irq(dev->irq, dev);
out:
return ret;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 87 | 41.04% | 1 | 20.00% |
Denis Kirjanov | 49 | 23.11% | 1 | 20.00% |
Florian Fainelli | 40 | 18.87% | 1 | 20.00% |
François Romieu | 36 | 16.98% | 2 | 40.00% |
Total | 212 | 100.00% | 5 | 100.00% |
static netdev_tx_t r6040_start_xmit(struct sk_buff *skb,
struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
struct r6040_descriptor *descptr;
void __iomem *ioaddr = lp->base;
unsigned long flags;
if (skb_put_padto(skb, ETH_ZLEN) < 0)
return NETDEV_TX_OK;
/* Critical Section */
spin_lock_irqsave(&lp->lock, flags);
/* TX resource check */
if (!lp->tx_free_desc) {
spin_unlock_irqrestore(&lp->lock, flags);
netif_stop_queue(dev);
netdev_err(dev, ": no tx descriptor\n");
return NETDEV_TX_BUSY;
}
/* Set TX descriptor & Transmit it */
lp->tx_free_desc--;
descptr = lp->tx_insert_ptr;
descptr->len = skb->len;
descptr->skb_ptr = skb;
descptr->buf = cpu_to_le32(pci_map_single(lp->pdev,
skb->data, skb->len, PCI_DMA_TODEVICE));
descptr->status = DSC_OWNER_MAC;
skb_tx_timestamp(skb);
/* Trigger the MAC to check the TX descriptor */
if (!skb->xmit_more || netif_queue_stopped(dev))
iowrite16(TM2TX, ioaddr + MTPR);
lp->tx_insert_ptr = descptr->vndescp;
/* If no tx resource, stop */
if (!lp->tx_free_desc)
netif_stop_queue(dev);
spin_unlock_irqrestore(&lp->lock, flags);
return NETDEV_TX_OK;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 176 | 79.64% | 1 | 11.11% |
Florian Fainelli | 32 | 14.48% | 5 | 55.56% |
Richard Cochran | 5 | 2.26% | 1 | 11.11% |
Jeff Garzik | 5 | 2.26% | 1 | 11.11% |
Stephen Hemminger | 3 | 1.36% | 1 | 11.11% |
Total | 221 | 100.00% | 9 | 100.00% |
static void r6040_multicast_list(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
void __iomem *ioaddr = lp->base;
unsigned long flags;
struct netdev_hw_addr *ha;
int i;
u16 *adrp;
u16 hash_table[4] = { 0 };
spin_lock_irqsave(&lp->lock, flags);
/* Keep our MAC Address */
adrp = (u16 *)dev->dev_addr;
iowrite16(adrp[0], ioaddr + MID_0L);
iowrite16(adrp[1], ioaddr + MID_0M);
iowrite16(adrp[2], ioaddr + MID_0H);
/* Clear AMCP & PROM bits */
lp->mcr0 = ioread16(ioaddr + MCR0) & ~(MCR0_PROMISC | MCR0_HASH_EN);
/* Promiscuous mode */
if (dev->flags & IFF_PROMISC)
lp->mcr0 |= MCR0_PROMISC;
/* Enable multicast hash table function to
* receive all multicast packets. */
else if (dev->flags & IFF_ALLMULTI) {
lp->mcr0 |= MCR0_HASH_EN;
for (i = 0; i < MCAST_MAX ; i++) {
iowrite16(0, ioaddr + MID_1L + 8 * i);
iowrite16(0, ioaddr + MID_1M + 8 * i);
iowrite16(0, ioaddr + MID_1H + 8 * i);
}
for (i = 0; i < 4; i++)
hash_table[i] = 0xffff;
}
/* Use internal multicast address registers if the number of
* multicast addresses is not greater than MCAST_MAX. */
else if (netdev_mc_count(dev) <= MCAST_MAX) {
i = 0;
netdev_for_each_mc_addr(ha, dev) {
u16 *adrp = (u16 *) ha->addr;
iowrite16(adrp[0], ioaddr + MID_1L + 8 * i);
iowrite16(adrp[1], ioaddr + MID_1M + 8 * i);
iowrite16(adrp[2], ioaddr + MID_1H + 8 * i);
i++;
}
while (i < MCAST_MAX) {
iowrite16(0, ioaddr + MID_1L + 8 * i);
iowrite16(0, ioaddr + MID_1M + 8 * i);
iowrite16(0, ioaddr + MID_1H + 8 * i);
i++;
}
}
/* Otherwise, Enable multicast hash table function. */
else {
u32 crc;
lp->mcr0 |= MCR0_HASH_EN;
for (i = 0; i < MCAST_MAX ; i++) {
iowrite16(0, ioaddr + MID_1L + 8 * i);
iowrite16(0, ioaddr + MID_1M + 8 * i);
iowrite16(0, ioaddr + MID_1H + 8 * i);
}
/* Build multicast hash table */
netdev_for_each_mc_addr(ha, dev) {
u8 *addrs = ha->addr;
crc = ether_crc(ETH_ALEN, addrs);
crc >>= 26;
hash_table[crc >> 4] |= 1 << (crc & 0xf);
}
}
iowrite16(lp->mcr0, ioaddr + MCR0);
/* Fill the MAC hash tables with their values */
if (lp->mcr0 & MCR0_HASH_EN) {
iowrite16(hash_table[0], ioaddr + MAR0);
iowrite16(hash_table[1], ioaddr + MAR1);
iowrite16(hash_table[2], ioaddr + MAR2);
iowrite16(hash_table[3], ioaddr + MAR3);
}
spin_unlock_irqrestore(&lp->lock, flags);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Shawn Lin | 281 | 49.38% | 1 | 12.50% |
Sten Wang | 261 | 45.87% | 1 | 12.50% |
Jiri Pirko | 17 | 2.99% | 3 | 37.50% |
Ben Hutchings | 6 | 1.05% | 1 | 12.50% |
Florian Fainelli | 4 | 0.70% | 2 | 25.00% |
Total | 569 | 100.00% | 8 | 100.00% |
static void netdev_get_drvinfo(struct net_device *dev,
struct ethtool_drvinfo *info)
{
struct r6040_private *rp = netdev_priv(dev);
strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
strlcpy(info->version, DRV_VERSION, sizeof(info->version));
strlcpy(info->bus_info, pci_name(rp->pdev), sizeof(info->bus_info));
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 55 | 69.62% | 1 | 50.00% |
Jiri Pirko | 24 | 30.38% | 1 | 50.00% |
Total | 79 | 100.00% | 2 | 100.00% |
static const struct ethtool_ops netdev_ethtool_ops = {
.get_drvinfo = netdev_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_ts_info = ethtool_op_get_ts_info,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = phy_ethtool_set_link_ksettings,
};
static const struct net_device_ops r6040_netdev_ops = {
.ndo_open = r6040_open,
.ndo_stop = r6040_close,
.ndo_start_xmit = r6040_start_xmit,
.ndo_get_stats = r6040_get_stats,
.ndo_set_rx_mode = r6040_multicast_list,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
.ndo_do_ioctl = r6040_ioctl,
.ndo_tx_timeout = r6040_tx_timeout,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = r6040_poll_controller,
#endif
};
static void r6040_adjust_link(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
struct phy_device *phydev = dev->phydev;
int status_changed = 0;
void __iomem *ioaddr = lp->base;
BUG_ON(!phydev);
if (lp->old_link != phydev->link) {
status_changed = 1;
lp->old_link = phydev->link;
}
/* reflect duplex change */
if (phydev->link && (lp->old_duplex != phydev->duplex)) {
lp->mcr0 |= (phydev->duplex == DUPLEX_FULL ? MCR0_FD : 0);
iowrite16(lp->mcr0, ioaddr);
status_changed = 1;
lp->old_duplex = phydev->duplex;
}
if (status_changed)
phy_print_status(phydev);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 115 | 82.73% | 3 | 60.00% |
Sten Wang | 23 | 16.55% | 1 | 20.00% |
Philippe Reynes | 1 | 0.72% | 1 | 20.00% |
Total | 139 | 100.00% | 5 | 100.00% |
static int r6040_mii_probe(struct net_device *dev)
{
struct r6040_private *lp = netdev_priv(dev);
struct phy_device *phydev = NULL;
phydev = phy_find_first(lp->mii_bus);
if (!phydev) {
dev_err(&lp->pdev->dev, "no PHY found\n");
return -ENODEV;
}
phydev = phy_connect(dev, phydev_name(phydev), &r6040_adjust_link,
PHY_INTERFACE_MODE_MII);
if (IS_ERR(phydev)) {
dev_err(&lp->pdev->dev, "could not attach to PHY\n");
return PTR_ERR(phydev);
}
/* mask with MAC supported features */
phydev->supported &= (SUPPORTED_10baseT_Half
| SUPPORTED_10baseT_Full
| SUPPORTED_100baseT_Half
| SUPPORTED_100baseT_Full
| SUPPORTED_Autoneg
| SUPPORTED_MII
| SUPPORTED_TP);
phydev->advertising = phydev->supported;
lp->old_link = 0;
lp->old_duplex = -1;
phy_attached_info(phydev);
return 0;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 152 | 98.70% | 1 | 33.33% |
Andrew Lunn | 2 | 1.30% | 2 | 66.67% |
Total | 154 | 100.00% | 3 | 100.00% |
static int r6040_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
struct net_device *dev;
struct r6040_private *lp;
void __iomem *ioaddr;
int err, io_size = R6040_IO_SIZE;
static int card_idx = -1;
int bar = 0;
u16 *adrp;
pr_info("%s\n", version);
err = pci_enable_device(pdev);
if (err)
goto err_out;
/* this should always be supported */
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "32-bit PCI DMA addresses not supported by the card\n");
goto err_out_disable_dev;
}
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (err) {
dev_err(&pdev->dev, "32-bit PCI DMA addresses not supported by the card\n");
goto err_out_disable_dev;
}
/* IO Size check */
if (pci_resource_len(pdev, bar) < io_size) {
dev_err(&pdev->dev, "Insufficient PCI resources, aborting\n");
err = -EIO;
goto err_out_disable_dev;
}
pci_set_master(pdev);
dev = alloc_etherdev(sizeof(struct r6040_private));
if (!dev) {
err = -ENOMEM;
goto err_out_disable_dev;
}
SET_NETDEV_DEV(dev, &pdev->dev);
lp = netdev_priv(dev);
err = pci_request_regions(pdev, DRV_NAME);
if (err) {
dev_err(&pdev->dev, "Failed to request PCI regions\n");
goto err_out_free_dev;
}
ioaddr = pci_iomap(pdev, bar, io_size);
if (!ioaddr) {
dev_err(&pdev->dev, "ioremap failed for device\n");
err = -EIO;
goto err_out_free_res;
}
/* If PHY status change register is still set to zero it means the
* bootloader didn't initialize it, so we set it to:
* - enable phy status change
* - enable all phy addresses
* - set to lowest timer divider */
if (ioread16(ioaddr + PHY_CC) == 0)
iowrite16(SCEN | PHY_MAX_ADDR << PHYAD_SHIFT |
7 << TMRDIV_SHIFT, ioaddr + PHY_CC);
/* Init system & device */
lp->base = ioaddr;
dev->irq = pdev->irq;
spin_lock_init(&lp->lock);
pci_set_drvdata(pdev, dev);
/* Set MAC address */
card_idx++;
adrp = (u16 *)dev->dev_addr;
adrp[0] = ioread16(ioaddr + MID_0L);
adrp[1] = ioread16(ioaddr + MID_0M);
adrp[2] = ioread16(ioaddr + MID_0H);
/* Some bootloader/BIOSes do not initialize
* MAC address, warn about that */
if (!(adrp[0] || adrp[1] || adrp[2])) {
netdev_warn(dev, "MAC address not initialized, "
"generating random\n");
eth_hw_addr_random(dev);
}
/* Link new device into r6040_root_dev */
lp->pdev = pdev;
lp->dev = dev;
/* Init RDC private data */
lp->mcr0 = MCR0_XMTEN | MCR0_RCVEN;
/* The RDC-specific entries in the device structure. */
dev->netdev_ops = &r6040_netdev_ops;
dev->ethtool_ops = &netdev_ethtool_ops;
dev->watchdog_timeo = TX_TIMEOUT;
netif_napi_add(dev, &lp->napi, r6040_poll, 64);
lp->mii_bus = mdiobus_alloc();
if (!lp->mii_bus) {
dev_err(&pdev->dev, "mdiobus_alloc() failed\n");
err = -ENOMEM;
goto err_out_unmap;
}
lp->mii_bus->priv = dev;
lp->mii_bus->read = r6040_mdiobus_read;
lp->mii_bus->write = r6040_mdiobus_write;
lp->mii_bus->name = "r6040_eth_mii";
snprintf(lp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
dev_name(&pdev->dev), card_idx);
err = mdiobus_register(lp->mii_bus);
if (err) {
dev_err(&pdev->dev, "failed to register MII bus\n");
goto err_out_mdio;
}
err = r6040_mii_probe(dev);
if (err) {
dev_err(&pdev->dev, "failed to probe MII bus\n");
goto err_out_mdio_unregister;
}
/* Register net device. After this dev->name assign */
err = register_netdev(dev);
if (err) {
dev_err(&pdev->dev, "Failed to register net device\n");
goto err_out_mdio_unregister;
}
return 0;
err_out_mdio_unregister:
mdiobus_unregister(lp->mii_bus);
err_out_mdio:
mdiobus_free(lp->mii_bus);
err_out_unmap:
netif_napi_del(&lp->napi);
pci_iounmap(pdev, ioaddr);
err_out_free_res:
pci_release_regions(pdev);
err_out_free_dev:
free_netdev(dev);
err_out_disable_dev:
pci_disable_device(pdev);
err_out:
return err;
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Florian Fainelli | 356 | 49.51% | 11 | 45.83% |
Sten Wang | 302 | 42.00% | 1 | 4.17% |
Devendra Naga | 19 | 2.64% | 2 | 8.33% |
Mark Kelly | 11 | 1.53% | 1 | 4.17% |
Jeff Garzik | 10 | 1.39% | 1 | 4.17% |
Yang Hongyang | 8 | 1.11% | 1 | 4.17% |
Axel Lin | 5 | 0.70% | 1 | 4.17% |
Stephen Hemminger | 2 | 0.28% | 1 | 4.17% |
Colin Ian King | 2 | 0.28% | 1 | 4.17% |
Danny Kukawka | 1 | 0.14% | 1 | 4.17% |
Michael Opdenacker | 1 | 0.14% | 1 | 4.17% |
Cesar Eduardo Barros | 1 | 0.14% | 1 | 4.17% |
Andrew Lunn | 1 | 0.14% | 1 | 4.17% |
Total | 719 | 100.00% | 24 | 100.00% |
static void r6040_remove_one(struct pci_dev *pdev)
{
struct net_device *dev = pci_get_drvdata(pdev);
struct r6040_private *lp = netdev_priv(dev);
unregister_netdev(dev);
mdiobus_unregister(lp->mii_bus);
mdiobus_free(lp->mii_bus);
netif_napi_del(&lp->napi);
pci_iounmap(pdev, lp->base);
pci_release_regions(pdev);
free_netdev(dev);
pci_disable_device(pdev);
}
Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 41 | 50.00% | 1 | 33.33% |
Florian Fainelli | 24 | 29.27% | 1 | 33.33% |
Devendra Naga | 17 | 20.73% | 1 | 33.33% |
Total | 82 | 100.00% | 3 | 100.00% |
static const struct pci_device_id r6040_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_RDC, 0x6040) },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, r6040_pci_tbl);
static struct pci_driver r6040_driver = {
.name = DRV_NAME,
.id_table = r6040_pci_tbl,
.probe = r6040_init_one,
.remove = r6040_remove_one,
};
module_pci_driver(r6040_driver);
Overall Contributors
Person | Tokens | Prop | Commits | CommitProp |
Sten Wang | 2825 | 49.68% | 1 | 1.09% |
Florian Fainelli | 2150 | 37.81% | 52 | 56.52% |
Shawn Lin | 291 | 5.12% | 1 | 1.09% |
Stephen Hemminger | 69 | 1.21% | 3 | 3.26% |
François Romieu | 60 | 1.06% | 2 | 2.17% |
Denis Kirjanov | 49 | 0.86% | 1 | 1.09% |
Jiri Pirko | 42 | 0.74% | 5 | 5.43% |
Devendra Naga | 38 | 0.67% | 3 | 3.26% |
Joe Chou | 30 | 0.53% | 2 | 2.17% |
Jeff Garzik | 20 | 0.35% | 1 | 1.09% |
Manuel Bessler | 18 | 0.32% | 1 | 1.09% |
Michael Thalmeier | 15 | 0.26% | 1 | 1.09% |
Philippe Reynes | 12 | 0.21% | 2 | 2.17% |
Al Viro | 12 | 0.21% | 1 | 1.09% |
Mark Kelly | 11 | 0.19% | 1 | 1.09% |
Yang Hongyang | 8 | 0.14% | 1 | 1.09% |
Richard Cochran | 8 | 0.14% | 2 | 2.17% |
Benoit Taine | 6 | 0.11% | 1 | 1.09% |
Ben Hutchings | 6 | 0.11% | 1 | 1.09% |
Axel Lin | 5 | 0.09% | 1 | 1.09% |
Andrew Lunn | 3 | 0.05% | 3 | 3.26% |
Colin Ian King | 2 | 0.04% | 1 | 1.09% |
Hannes Eder | 2 | 0.04% | 1 | 1.09% |
Michael Opdenacker | 1 | 0.02% | 1 | 1.09% |
Lucas De Marchi | 1 | 0.02% | 1 | 1.09% |
Danny Kukawka | 1 | 0.02% | 1 | 1.09% |
Cesar Eduardo Barros | 1 | 0.02% | 1 | 1.09% |
Bill Pemberton | | 0.00% | 0 | 0.00% |
Total | 5686 | 100.00% | 92 | 100.00% |
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