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- /*
- * Copyright (C) 2012 Adrian Jamroz <adrian.jamroz@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.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER );
-
- #include <stdint.h>
- #include <string.h>
- #include <unistd.h>
- #include <errno.h>
- #include <byteswap.h>
- #include <ipxe/netdevice.h>
- #include <ipxe/ethernet.h>
- #include <ipxe/if_ether.h>
- #include <ipxe/iobuf.h>
- #include <ipxe/malloc.h>
- #include <ipxe/pci.h>
- #include <ipxe/mii.h>
- #include "rhine.h"
-
- /** @file
- *
- * VIA Rhine network driver
- *
- */
-
- /******************************************************************************
- *
- * MII interface
- *
- ******************************************************************************
- */
-
- /**
- * Read from MII register
- *
- * @v mii MII interface
- * @v reg Register address
- * @ret value Data read, or negative error
- */
- static int rhine_mii_read ( struct mii_interface *mii, unsigned int reg ) {
- struct rhine_nic *rhn = container_of ( mii, struct rhine_nic, mii );
- unsigned int timeout = RHINE_TIMEOUT_US;
- uint8_t cr;
-
- DBGC2 ( rhn, "RHINE %p MII read reg %d\n", rhn, reg );
-
- /* Initiate read */
- writeb ( reg, rhn->regs + RHINE_MII_ADDR );
- cr = readb ( rhn->regs + RHINE_MII_CR );
- writeb ( ( cr | RHINE_MII_CR_RDEN ), rhn->regs + RHINE_MII_CR );
-
- /* Wait for read to complete */
- while ( timeout-- ) {
- udelay ( 1 );
- cr = readb ( rhn->regs + RHINE_MII_CR );
- if ( ! ( cr & RHINE_MII_CR_RDEN ) )
- return readw ( rhn->regs + RHINE_MII_RDWR );
- }
-
- DBGC ( rhn, "RHINE %p MII read timeout\n", rhn );
- return -ETIMEDOUT;
- }
-
- /**
- * Write to MII register
- *
- * @v mii MII interface
- * @v reg Register address
- * @v data Data to write
- * @ret rc Return status code
- */
- static int rhine_mii_write ( struct mii_interface *mii, unsigned int reg,
- unsigned int data ) {
- struct rhine_nic *rhn = container_of ( mii, struct rhine_nic, mii );
- unsigned int timeout = RHINE_TIMEOUT_US;
- uint8_t cr;
-
- DBGC2 ( rhn, "RHINE %p MII write reg %d data 0x%04x\n",
- rhn, reg, data );
-
- /* Initiate write */
- writeb ( reg, rhn->regs + RHINE_MII_ADDR );
- writew ( data, rhn->regs + RHINE_MII_RDWR );
- cr = readb ( rhn->regs + RHINE_MII_CR );
- writeb ( ( cr | RHINE_MII_CR_WREN ), rhn->regs + RHINE_MII_CR );
-
- /* Wait for write to complete */
- while ( timeout-- ) {
- udelay ( 1 );
- cr = readb ( rhn->regs + RHINE_MII_CR );
- if ( ! ( cr & RHINE_MII_CR_WREN ) )
- return 0;
- }
-
- DBGC ( rhn, "RHINE %p MII write timeout\n", rhn );
- return -ETIMEDOUT;
- }
-
- /** Rhine MII operations */
- static struct mii_operations rhine_mii_operations = {
- .read = rhine_mii_read,
- .write = rhine_mii_write,
- };
-
- /**
- * Enable auto-polling
- *
- * @v rhn Rhine device
- * @ret rc Return status code
- *
- * This is voodoo. There seems to be no documentation on exactly what
- * we are waiting for, or why we have to do anything other than simply
- * turn the feature on.
- */
- static int rhine_mii_autopoll ( struct rhine_nic *rhn ) {
- unsigned int timeout = RHINE_TIMEOUT_US;
- uint8_t addr;
-
- /* Initiate auto-polling */
- writeb ( MII_BMSR, rhn->regs + RHINE_MII_ADDR );
- writeb ( RHINE_MII_CR_AUTOPOLL, rhn->regs + RHINE_MII_CR );
-
- /* Wait for auto-polling to complete */
- while ( timeout-- ) {
- udelay ( 1 );
- addr = readb ( rhn->regs + RHINE_MII_ADDR );
- if ( ! ( addr & RHINE_MII_ADDR_MDONE ) ) {
- writeb ( ( MII_BMSR | RHINE_MII_ADDR_MSRCEN ),
- rhn->regs + RHINE_MII_ADDR );
- return 0;
- }
- }
-
- DBGC ( rhn, "RHINE %p MII auto-poll timeout\n", rhn );
- return -ETIMEDOUT;
- }
-
- /******************************************************************************
- *
- * Device reset
- *
- ******************************************************************************
- */
-
- /**
- * Reset hardware
- *
- * @v rhn Rhine device
- * @ret rc Return status code
- *
- * We're using PIO because this might reset the MMIO enable bit.
- */
- static int rhine_reset ( struct rhine_nic *rhn ) {
- unsigned int timeout = RHINE_TIMEOUT_US;
- uint8_t cr1;
-
- DBGC ( rhn, "RHINE %p reset\n", rhn );
-
- /* Initiate reset */
- outb ( RHINE_CR1_RESET, rhn->ioaddr + RHINE_CR1 );
-
- /* Wait for reset to complete */
- while ( timeout-- ) {
- udelay ( 1 );
- cr1 = inb ( rhn->ioaddr + RHINE_CR1 );
- if ( ! ( cr1 & RHINE_CR1_RESET ) )
- return 0;
- }
-
- DBGC ( rhn, "RHINE %p reset timeout\n", rhn );
- return -ETIMEDOUT;
- }
-
- /**
- * Enable MMIO register access
- *
- * @v rhn Rhine device
- * @v revision Card revision
- */
- static void rhine_enable_mmio ( struct rhine_nic *rhn, int revision ) {
- uint8_t conf;
-
- if ( revision < RHINE_REVISION_OLD ) {
- conf = inb ( rhn->ioaddr + RHINE_CHIPCFG_A );
- outb ( ( conf | RHINE_CHIPCFG_A_MMIO ),
- rhn->ioaddr + RHINE_CHIPCFG_A );
- } else {
- conf = inb ( rhn->ioaddr + RHINE_CHIPCFG_D );
- outb ( ( conf | RHINE_CHIPCFG_D_MMIO ),
- rhn->ioaddr + RHINE_CHIPCFG_D );
- }
- }
-
- /**
- * Reload EEPROM contents
- *
- * @v rhn Rhine device
- * @ret rc Return status code
- *
- * We're using PIO because this might reset the MMIO enable bit.
- */
- static int rhine_reload_eeprom ( struct rhine_nic *rhn ) {
- unsigned int timeout = RHINE_TIMEOUT_US;
- uint8_t eeprom;
-
- /* Initiate reload */
- eeprom = inb ( rhn->ioaddr + RHINE_EEPROM_CTRL );
- outb ( ( eeprom | RHINE_EEPROM_CTRL_RELOAD ),
- rhn->ioaddr + RHINE_EEPROM_CTRL );
-
- /* Wait for reload to complete */
- while ( timeout-- ) {
- udelay ( 1 );
- eeprom = inb ( rhn->ioaddr + RHINE_EEPROM_CTRL );
- if ( ! ( eeprom & RHINE_EEPROM_CTRL_RELOAD ) )
- return 0;
- }
-
- DBGC ( rhn, "RHINE %p EEPROM reload timeout\n", rhn );
- return -ETIMEDOUT;
- }
-
- /******************************************************************************
- *
- * Link state
- *
- ******************************************************************************
- */
-
- /**
- * Check link state
- *
- * @v netdev Network device
- */
- static void rhine_check_link ( struct net_device *netdev ) {
- struct rhine_nic *rhn = netdev->priv;
- uint8_t mii_sr;
-
- /* Read MII status register */
- mii_sr = readb ( rhn->regs + RHINE_MII_SR );
- DBGC ( rhn, "RHINE %p link status %02x\n", rhn, mii_sr );
-
- /* Report link state */
- if ( ! ( mii_sr & RHINE_MII_SR_LINKPOLL ) ) {
- netdev_link_up ( netdev );
- } else if ( mii_sr & RHINE_MII_SR_PHYERR ) {
- netdev_link_err ( netdev, -EIO );
- } else {
- netdev_link_down ( netdev );
- }
- }
-
- /******************************************************************************
- *
- * Network device interface
- *
- ******************************************************************************
- */
-
- /**
- * Create descriptor ring
- *
- * @v rhn Rhine device
- * @v ring Descriptor ring
- * @ret rc Return status code
- */
- static int rhine_create_ring ( struct rhine_nic *rhn,
- struct rhine_ring *ring ) {
- size_t len = ( ring->count * sizeof ( ring->desc[0] ) );
- struct rhine_descriptor *next;
- physaddr_t address;
- unsigned int i;
-
- /* Allocate descriptors */
- ring->desc = malloc_dma ( len, RHINE_RING_ALIGN );
- if ( ! ring->desc )
- return -ENOMEM;
-
- /* Initialise descriptor ring */
- memset ( ring->desc, 0, len );
- for ( i = 0 ; i < ring->count ; i++ ) {
- next = &ring->desc[ ( i + 1 ) % ring->count ];
- ring->desc[i].next = cpu_to_le32 ( virt_to_bus ( next ) );
- }
-
- /* Program ring address */
- address = virt_to_bus ( ring->desc );
- writel ( address, rhn->regs + ring->reg );
-
- DBGC ( rhn, "RHINE %p ring %02x is at [%08llx,%08llx)\n",
- rhn, ring->reg, ( ( unsigned long long ) address ),
- ( ( unsigned long long ) address + len ) );
-
- return 0;
- }
-
- /**
- * Destroy descriptor ring
- *
- * @v rhn Rhine device
- * @v ring Descriptor ring
- */
- static void rhine_destroy_ring ( struct rhine_nic *rhn,
- struct rhine_ring *ring ) {
- size_t len = ( ring->count * sizeof ( ring->desc[0] ) );
-
- /* Clear ring address */
- writel ( 0, rhn->regs + ring->reg );
-
- /* Free descriptor ring */
- free_dma ( ring->desc, len );
- ring->desc = NULL;
- ring->prod = 0;
- ring->cons = 0;
- }
-
- /**
- * Refill RX descriptor ring
- *
- * @v rhn Rhine device
- */
- static void rhine_refill_rx ( struct rhine_nic *rhn ) {
- struct rhine_descriptor *desc;
- struct io_buffer *iobuf;
- unsigned int rx_idx;
- physaddr_t address;
-
- while ( ( rhn->rx.prod - rhn->rx.cons ) < RHINE_RXDESC_NUM ) {
-
- /* Allocate I/O buffer */
- iobuf = alloc_iob ( RHINE_RX_MAX_LEN );
- if ( ! iobuf ) {
- /* Wait for next refill */
- return;
- }
-
- /* Populate next receive descriptor */
- rx_idx = ( rhn->rx.prod++ % RHINE_RXDESC_NUM );
- desc = &rhn->rx.desc[rx_idx];
- address = virt_to_bus ( iobuf->data );
- desc->buffer = cpu_to_le32 ( address );
- desc->des1 =
- cpu_to_le32 ( RHINE_DES1_SIZE ( RHINE_RX_MAX_LEN - 1) |
- RHINE_DES1_CHAIN | RHINE_DES1_IC );
- wmb();
- desc->des0 = cpu_to_le32 ( RHINE_DES0_OWN );
-
- /* Record I/O buffer */
- rhn->rx_iobuf[rx_idx] = iobuf;
-
- DBGC2 ( rhn, "RHINE %p RX %d is [%llx,%llx)\n", rhn, rx_idx,
- ( ( unsigned long long ) address ),
- ( ( unsigned long long ) address + RHINE_RX_MAX_LEN ) );
- }
- }
-
- /**
- * Open network device
- *
- * @v netdev Network device
- * @ret rc Return status code
- */
- static int rhine_open ( struct net_device *netdev ) {
- struct rhine_nic *rhn = netdev->priv;
- int rc;
-
- /* Create transmit ring */
- if ( ( rc = rhine_create_ring ( rhn, &rhn->tx ) ) != 0 )
- goto err_create_tx;
-
- /* Create receive ring */
- if ( ( rc = rhine_create_ring ( rhn, &rhn->rx ) ) != 0 )
- goto err_create_rx;
-
- /* Set receive configuration */
- writeb ( ( RHINE_RCR_PHYS_ACCEPT | RHINE_RCR_BCAST_ACCEPT |
- RHINE_RCR_RUNT_ACCEPT ), rhn->regs + RHINE_RCR );
-
- /* Enable link status monitoring */
- if ( ( rc = rhine_mii_autopoll ( rhn ) ) != 0 )
- goto err_mii_autopoll;
-
- /* Some cards need an extra delay(observed with VT6102) */
- mdelay ( 10 );
-
- /* Enable RX/TX of packets */
- writeb ( ( RHINE_CR0_STARTNIC | RHINE_CR0_RXEN | RHINE_CR0_TXEN ),
- rhn->regs + RHINE_CR0 );
-
- /* Enable auto polling and full duplex operation */
- rhn->cr1 = RHINE_CR1_FDX;
- writeb ( rhn->cr1, rhn->regs + RHINE_CR1 );
-
- /* Refill RX ring */
- rhine_refill_rx ( rhn );
-
- /* Update link state */
- rhine_check_link ( netdev );
-
- return 0;
-
- err_mii_autopoll:
- rhine_destroy_ring ( rhn, &rhn->rx );
- err_create_rx:
- rhine_destroy_ring ( rhn, &rhn->tx );
- err_create_tx:
- return rc;
- }
-
- /**
- * Close network device
- *
- * @v netdev Network device
- */
- static void rhine_close ( struct net_device *netdev ) {
- struct rhine_nic *rhn = netdev->priv;
- unsigned int i;
-
- /* Disable interrupts */
- writeb ( 0, RHINE_IMR0 );
- writeb ( 0, RHINE_IMR1 );
-
- /* Stop card, clear RXON and TXON bits */
- writeb ( RHINE_CR0_STOPNIC, rhn->regs + RHINE_CR0 );
-
- /* Destroy receive ring */
- rhine_destroy_ring ( rhn, &rhn->rx );
-
- /* Discard any unused receive buffers */
- for ( i = 0 ; i < RHINE_RXDESC_NUM ; i++ ) {
- if ( rhn->rx_iobuf[i] )
- free_iob ( rhn->rx_iobuf[i] );
- rhn->rx_iobuf[i] = NULL;
- }
-
- /* Destroy transmit ring */
- rhine_destroy_ring ( rhn, &rhn->tx );
- }
-
- /**
- * Transmit packet
- *
- * @v netdev Network device
- * @v iobuf I/O buffer
- * @ret rc Return status code
- */
- static int rhine_transmit ( struct net_device *netdev,
- struct io_buffer *iobuf ) {
- struct rhine_nic *rhn = netdev->priv;
- struct rhine_descriptor *desc;
- physaddr_t address;
- unsigned int tx_idx;
-
- /* Get next transmit descriptor */
- if ( ( rhn->tx.prod - rhn->tx.cons ) >= RHINE_TXDESC_NUM )
- return -ENOBUFS;
- tx_idx = ( rhn->tx.prod++ % RHINE_TXDESC_NUM );
- desc = &rhn->tx.desc[tx_idx];
-
- /* Pad and align packet */
- iob_pad ( iobuf, ETH_ZLEN );
- address = virt_to_bus ( iobuf->data );
-
- /* Populate transmit descriptor */
- desc->buffer = cpu_to_le32 ( address );
- desc->des1 = cpu_to_le32 ( RHINE_DES1_IC | RHINE_TDES1_STP |
- RHINE_TDES1_EDP | RHINE_DES1_CHAIN |
- RHINE_DES1_SIZE ( iob_len ( iobuf ) ) );
- wmb();
- desc->des0 = cpu_to_le32 ( RHINE_DES0_OWN );
- wmb();
-
- /* Notify card that there are packets ready to transmit */
- writeb ( ( rhn->cr1 | RHINE_CR1_TXPOLL ), rhn->regs + RHINE_CR1 );
-
- DBGC2 ( rhn, "RHINE %p TX %d is [%llx,%llx)\n", rhn, tx_idx,
- ( ( unsigned long long ) address ),
- ( ( unsigned long long ) address + iob_len ( iobuf ) ) );
-
- return 0;
- }
-
- /**
- * Poll for completed packets
- *
- * @v netdev Network device
- */
- static void rhine_poll_tx ( struct net_device *netdev ) {
- struct rhine_nic *rhn = netdev->priv;
- struct rhine_descriptor *desc;
- unsigned int tx_idx;
- uint32_t des0;
-
- /* Check for completed packets */
- while ( rhn->tx.cons != rhn->tx.prod ) {
-
- /* Get next transmit descriptor */
- tx_idx = ( rhn->tx.cons % RHINE_TXDESC_NUM );
- desc = &rhn->tx.desc[tx_idx];
-
- /* Stop if descriptor is still in use */
- if ( desc->des0 & cpu_to_le32 ( RHINE_DES0_OWN ) )
- return;
-
- /* Complete TX descriptor */
- des0 = le32_to_cpu ( desc->des0 );
- if ( des0 & RHINE_TDES0_TERR ) {
- DBGC ( rhn, "RHINE %p TX %d error (DES0 %08x)\n",
- rhn, tx_idx, des0 );
- netdev_tx_complete_next_err ( netdev, -EIO );
- } else {
- DBGC2 ( rhn, "RHINE %p TX %d complete\n", rhn, tx_idx );
- netdev_tx_complete_next ( netdev );
- }
- rhn->tx.cons++;
- }
- }
-
- /**
- * Poll for received packets
- *
- * @v netdev Network device
- */
- static void rhine_poll_rx ( struct net_device *netdev ) {
- struct rhine_nic *rhn = netdev->priv;
- struct rhine_descriptor *desc;
- struct io_buffer *iobuf;
- unsigned int rx_idx;
- uint32_t des0;
- size_t len;
-
- /* Check for received packets */
- while ( rhn->rx.cons != rhn->rx.prod ) {
-
- /* Get next receive descriptor */
- rx_idx = ( rhn->rx.cons % RHINE_RXDESC_NUM );
- desc = &rhn->rx.desc[rx_idx];
-
- /* Stop if descriptor is still in use */
- if ( desc->des0 & cpu_to_le32 ( RHINE_DES0_OWN ) )
- return;
-
- /* Populate I/O buffer */
- iobuf = rhn->rx_iobuf[rx_idx];
- rhn->rx_iobuf[rx_idx] = NULL;
- des0 = le32_to_cpu ( desc->des0 );
- len = ( RHINE_DES0_GETSIZE ( des0 ) - 4 /* strip CRC */ );
- iob_put ( iobuf, len );
-
- /* Hand off to network stack */
- if ( des0 & RHINE_RDES0_RXOK ) {
- DBGC2 ( rhn, "RHINE %p RX %d complete (length %zd)\n",
- rhn, rx_idx, len );
- netdev_rx ( netdev, iobuf );
- } else {
- DBGC ( rhn, "RHINE %p RX %d error (length %zd, DES0 "
- "%08x)\n", rhn, rx_idx, len, des0 );
- netdev_rx_err ( netdev, iobuf, -EIO );
- }
- rhn->rx.cons++;
- }
- }
-
- /**
- * Poll for completed and received packets
- *
- * @v netdev Network device
- */
- static void rhine_poll ( struct net_device *netdev ) {
- struct rhine_nic *rhn = netdev->priv;
- uint8_t isr0;
- uint8_t isr1;
-
- /* Read and acknowledge interrupts */
- isr0 = readb ( rhn->regs + RHINE_ISR0 );
- isr1 = readb ( rhn->regs + RHINE_ISR1 );
- if ( isr0 )
- writeb ( isr0, rhn->regs + RHINE_ISR0 );
- if ( isr1 )
- writeb ( isr1, rhn->regs + RHINE_ISR1 );
-
- /* Report unexpected errors */
- if ( ( isr0 & ( RHINE_ISR0_MIBOVFL | RHINE_ISR0_PCIERR |
- RHINE_ISR0_RXRINGERR | RHINE_ISR0_TXRINGERR ) ) ||
- ( isr1 & ( RHINE_ISR1_GPI | RHINE_ISR1_TXABORT |
- RHINE_ISR1_RXFIFOOVFL | RHINE_ISR1_RXFIFOUNFL |
- RHINE_ISR1_TXFIFOUNFL ) ) ) {
- DBGC ( rhn, "RHINE %p unexpected ISR0 %02x ISR1 %02x\n",
- rhn, isr0, isr1 );
- /* Report as a TX error */
- netdev_tx_err ( netdev, NULL, -EIO );
- }
-
- /* Poll for TX completions, if applicable */
- if ( isr0 & ( RHINE_ISR0_TXDONE | RHINE_ISR0_TXERR ) )
- rhine_poll_tx ( netdev );
-
- /* Poll for RX completions, if applicable */
- if ( isr0 & ( RHINE_ISR0_RXDONE | RHINE_ISR0_RXERR ) )
- rhine_poll_rx ( netdev );
-
- /* Handle RX buffer exhaustion */
- if ( isr1 & RHINE_ISR1_RXNOBUF ) {
- rhine_poll_rx ( netdev );
- netdev_rx_err ( netdev, NULL, -ENOBUFS );
- }
-
- /* Check link state, if applicable */
- if ( isr1 & RHINE_ISR1_PORTSTATE )
- rhine_check_link ( netdev );
-
- /* Refill RX ring */
- rhine_refill_rx ( rhn );
- }
-
- /**
- * Enable or disable interrupts
- *
- * @v netdev Network device
- * @v enable Interrupts should be enabled
- */
- static void rhine_irq ( struct net_device *netdev, int enable ) {
- struct rhine_nic *nic = netdev->priv;
-
- if ( enable ) {
- /* Enable interrupts */
- writeb ( 0xff, nic->regs + RHINE_IMR0 );
- writeb ( 0xff, nic->regs + RHINE_IMR1 );
- } else {
- /* Disable interrupts */
- writeb ( 0, nic->regs + RHINE_IMR0 );
- writeb ( 0, nic->regs + RHINE_IMR1 );
- }
- }
-
- /** Rhine network device operations */
- static struct net_device_operations rhine_operations = {
- .open = rhine_open,
- .close = rhine_close,
- .transmit = rhine_transmit,
- .poll = rhine_poll,
- .irq = rhine_irq,
- };
-
- /******************************************************************************
- *
- * PCI interface
- *
- ******************************************************************************
- */
-
- /**
- * Probe PCI device
- *
- * @v pci PCI device
- * @ret rc Return status code
- */
- static int rhine_probe ( struct pci_device *pci ) {
- struct net_device *netdev;
- struct rhine_nic *rhn;
- uint8_t revision;
- unsigned int i;
- int rc;
-
- /* Allocate and initialise net device */
- netdev = alloc_etherdev ( sizeof ( *rhn ) );
- if ( ! netdev ) {
- rc = -ENOMEM;
- goto err_alloc;
- }
- netdev_init ( netdev, &rhine_operations );
- rhn = netdev->priv;
- pci_set_drvdata ( pci, netdev );
- netdev->dev = &pci->dev;
- memset ( rhn, 0, sizeof ( *rhn ) );
- rhine_init_ring ( &rhn->tx, RHINE_TXDESC_NUM, RHINE_TXQUEUE_BASE );
- rhine_init_ring ( &rhn->rx, RHINE_RXDESC_NUM, RHINE_RXQUEUE_BASE );
-
- /* Fix up PCI device */
- adjust_pci_device ( pci );
-
- /* Map registers */
- rhn->regs = ioremap ( pci->membase, RHINE_BAR_SIZE );
- rhn->ioaddr = pci->ioaddr;
- DBGC ( rhn, "RHINE %p regs at %08lx, I/O at %04lx\n", rhn,
- pci->membase, pci->ioaddr );
-
- /* Reset the NIC */
- if ( ( rc = rhine_reset ( rhn ) ) != 0 )
- goto err_reset;
-
- /* Reload EEPROM */
- if ( ( rc = rhine_reload_eeprom ( rhn ) ) != 0 )
- goto err_reload_eeprom;
-
- /* Read card revision and enable MMIO */
- pci_read_config_byte ( pci, PCI_REVISION, &revision );
- DBGC ( rhn, "RHINE %p revision %#02x detected\n", rhn, revision );
- rhine_enable_mmio ( rhn, revision );
-
- /* Read MAC address */
- for ( i = 0 ; i < ETH_ALEN ; i++ )
- netdev->hw_addr[i] = readb ( rhn->regs + RHINE_MAC + i );
-
- /* Initialise and reset MII interface */
- mii_init ( &rhn->mii, &rhine_mii_operations );
- if ( ( rc = mii_reset ( &rhn->mii ) ) != 0 ) {
- DBGC ( rhn, "RHINE %p could not reset MII: %s\n",
- rhn, strerror ( rc ) );
- goto err_mii_reset;
- }
- DBGC ( rhn, "RHINE PHY vendor %04x device %04x\n",
- rhine_mii_read ( &rhn->mii, 0x02 ),
- rhine_mii_read ( &rhn->mii, 0x03 ) );
-
- /* Register network device */
- if ( ( rc = register_netdev ( netdev ) ) != 0 )
- goto err_register_netdev;
-
- /* Set initial link state */
- rhine_check_link ( netdev );
-
- return 0;
-
- err_register_netdev:
- err_mii_reset:
- err_reload_eeprom:
- rhine_reset ( rhn );
- err_reset:
- netdev_nullify ( netdev );
- netdev_put ( netdev );
- err_alloc:
- return rc;
- }
-
- /**
- * Remove PCI device
- *
- * @v pci PCI device
- */
- static void rhine_remove ( struct pci_device *pci ) {
- struct net_device *netdev = pci_get_drvdata ( pci );
- struct rhine_nic *nic = netdev->priv;
-
- /* Unregister network device */
- unregister_netdev ( netdev );
-
- /* Reset card */
- rhine_reset ( nic );
-
- /* Free network device */
- netdev_nullify ( netdev );
- netdev_put ( netdev );
- }
-
- /** Rhine PCI device IDs */
- static struct pci_device_id rhine_nics[] = {
- PCI_ROM ( 0x1106, 0x3065, "dlink-530tx", "VIA VT6102", 0 ),
- PCI_ROM ( 0x1106, 0x3106, "vt6105", "VIA VT6105", 0 ),
- PCI_ROM ( 0x1106, 0x3043, "dlink-530tx-old", "VIA VT3043", 0 ),
- PCI_ROM ( 0x1106, 0x3053, "vt6105m", "VIA VT6105M", 0 ),
- PCI_ROM ( 0x1106, 0x6100, "via-rhine-old", "VIA 86C100A", 0 )
- };
-
- /** Rhine PCI driver */
- struct pci_driver rhine_driver __pci_driver = {
- .ids = rhine_nics,
- .id_count = ( sizeof ( rhine_nics ) / sizeof ( rhine_nics[0] ) ),
- .probe = rhine_probe,
- .remove = rhine_remove,
- };
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