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- /*
- * Copyright (C) 2018 Sylvie Barlow <sylvie.c.barlow@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.
- *
- * You can also choose to distribute this program under the terms of
- * the Unmodified Binary Distribution Licence (as given in the file
- * COPYING.UBDL), provided that you have satisfied its requirements.
- */
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- #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 "icplus.h"
-
- /** @file
- *
- * IC+ network driver
- *
- */
-
- /******************************************************************************
- *
- * Device reset
- *
- ******************************************************************************
- */
-
- /**
- * Reset hardware
- *
- * @v icp IC+ device
- * @ret rc Return status code
- */
- static int icplus_reset ( struct icplus_nic *icp ) {
- uint32_t asicctrl;
- unsigned int i;
-
- /* Trigger reset */
- writel ( ( ICP_ASICCTRL_GLOBALRESET | ICP_ASICCTRL_DMA |
- ICP_ASICCTRL_FIFO | ICP_ASICCTRL_NETWORK | ICP_ASICCTRL_HOST |
- ICP_ASICCTRL_AUTOINIT ), ( icp->regs + ICP_ASICCTRL ) );
-
- /* Wait for reset to complete */
- for ( i = 0 ; i < ICP_RESET_MAX_WAIT_MS ; i++ ) {
-
- /* Check if device is ready */
- asicctrl = readl ( icp->regs + ICP_ASICCTRL );
- if ( ! ( asicctrl & ICP_ASICCTRL_RESETBUSY ) )
- return 0;
-
- /* Delay */
- mdelay ( 1 );
- }
-
- DBGC ( icp, "ICPLUS %p timed out waiting for reset (asicctrl %#08x)\n",
- icp, asicctrl );
- return -ETIMEDOUT;
- }
-
- /******************************************************************************
- *
- * EEPROM interface
- *
- ******************************************************************************
- */
-
- /**
- * Read data from EEPROM
- *
- * @v nvs NVS device
- * @v address Address from which to read
- * @v data Data buffer
- * @v len Length of data buffer
- * @ret rc Return status code
- */
- static int icplus_read_eeprom ( struct nvs_device *nvs, unsigned int address,
- void *data, size_t len ) {
- struct icplus_nic *icp =
- container_of ( nvs, struct icplus_nic, eeprom );
- unsigned int i;
- uint16_t eepromctrl;
- uint16_t *data_word = data;
-
- /* Sanity check. We advertise a blocksize of one word, so
- * should only ever receive single-word requests.
- */
- assert ( len == sizeof ( *data_word ) );
-
- /* Initiate read */
- writew ( ( ICP_EEPROMCTRL_OPCODE_READ |
- ICP_EEPROMCTRL_ADDRESS ( address ) ),
- ( icp->regs + ICP_EEPROMCTRL ) );
-
- /* Wait for read to complete */
- for ( i = 0 ; i < ICP_EEPROM_MAX_WAIT_MS ; i++ ) {
-
- /* If read is not complete, delay 1ms and retry */
- eepromctrl = readw ( icp->regs + ICP_EEPROMCTRL );
- if ( eepromctrl & ICP_EEPROMCTRL_BUSY ) {
- mdelay ( 1 );
- continue;
- }
-
- /* Extract data */
- *data_word = cpu_to_le16 ( readw ( icp->regs + ICP_EEPROMDATA ));
- return 0;
- }
-
- DBGC ( icp, "ICPLUS %p timed out waiting for EEPROM read\n", icp );
- return -ETIMEDOUT;
- }
-
- /**
- * Write data to EEPROM
- *
- * @v nvs NVS device
- * @v address Address to which to write
- * @v data Data buffer
- * @v len Length of data buffer
- * @ret rc Return status code
- */
- static int icplus_write_eeprom ( struct nvs_device *nvs,
- unsigned int address __unused,
- const void *data __unused,
- size_t len __unused ) {
- struct icplus_nic *icp =
- container_of ( nvs, struct icplus_nic, eeprom );
-
- DBGC ( icp, "ICPLUS %p EEPROM write not supported\n", icp );
- return -ENOTSUP;
- }
-
- /**
- * Initialise EEPROM
- *
- * @v icp IC+ device
- */
- static void icplus_init_eeprom ( struct icplus_nic *icp ) {
-
- /* The hardware supports only single-word reads */
- icp->eeprom.word_len_log2 = ICP_EEPROM_WORD_LEN_LOG2;
- icp->eeprom.size = ICP_EEPROM_MIN_SIZE_WORDS;
- icp->eeprom.block_size = 1;
- icp->eeprom.read = icplus_read_eeprom;
- icp->eeprom.write = icplus_write_eeprom;
- }
-
- /******************************************************************************
- *
- * MII interface
- *
- ******************************************************************************
- */
-
- /** Pin mapping for MII bit-bashing interface */
- static const uint8_t icplus_mii_bits[] = {
- [MII_BIT_MDC] = ICP_PHYCTRL_MGMTCLK,
- [MII_BIT_MDIO] = ICP_PHYCTRL_MGMTDATA,
- [MII_BIT_DRIVE] = ICP_PHYCTRL_MGMTDIR,
- };
-
- /**
- * Read input bit
- *
- * @v basher Bit-bashing interface
- * @v bit_id Bit number
- * @ret zero Input is a logic 0
- * @ret non-zero Input is a logic 1
- */
- static int icplus_mii_read_bit ( struct bit_basher *basher,
- unsigned int bit_id ) {
- struct icplus_nic *icp = container_of ( basher, struct icplus_nic,
- miibit.basher );
- uint8_t mask = icplus_mii_bits[bit_id];
- uint8_t reg;
-
- DBG_DISABLE ( DBGLVL_IO );
- reg = readb ( icp->regs + ICP_PHYCTRL );
- DBG_ENABLE ( DBGLVL_IO );
- return ( reg & mask );
- }
-
- /**
- * Set/clear output bit
- *
- * @v basher Bit-bashing interface
- * @v bit_id Bit number
- * @v data Value to write
- */
- static void icplus_mii_write_bit ( struct bit_basher *basher,
- unsigned int bit_id, unsigned long data ) {
- struct icplus_nic *icp = container_of ( basher, struct icplus_nic,
- miibit.basher );
- uint8_t mask = icplus_mii_bits[bit_id];
- uint8_t reg;
-
- DBG_DISABLE ( DBGLVL_IO );
- reg = readb ( icp->regs + ICP_PHYCTRL );
- reg &= ~mask;
- reg |= ( data & mask );
- writeb ( reg, icp->regs + ICP_PHYCTRL );
- readb ( icp->regs + ICP_PHYCTRL ); /* Ensure write reaches chip */
- DBG_ENABLE ( DBGLVL_IO );
- }
-
- /** MII bit-bashing interface */
- static struct bit_basher_operations icplus_basher_ops = {
- .read = icplus_mii_read_bit,
- .write = icplus_mii_write_bit,
- };
-
- /******************************************************************************
- *
- * Link state
- *
- ******************************************************************************
- */
-
- /**
- * Configure PHY
- *
- * @v icp IC+ device
- * @ret rc Return status code
- */
- static int icplus_init_phy ( struct icplus_nic *icp ) {
- uint32_t asicctrl;
- int rc;
-
- /* Find PHY address */
- if ( ( rc = mii_find ( &icp->mii ) ) != 0 ) {
- DBGC ( icp, "ICPLUS %p could not find PHY address: %s\n",
- icp, strerror ( rc ) );
- return rc;
- }
-
- /* Configure PHY to advertise 1000Mbps if applicable */
- asicctrl = readl ( icp->regs + ICP_ASICCTRL );
- if ( asicctrl & ICP_ASICCTRL_PHYSPEED1000 ) {
- if ( ( rc = mii_write ( &icp->mii, MII_CTRL1000,
- ADVERTISE_1000FULL ) ) != 0 ) {
- DBGC ( icp, "ICPLUS %p could not advertise 1000Mbps: "
- "%s\n", icp, strerror ( rc ) );
- return rc;
- }
- }
-
- /* Reset PHY */
- if ( ( rc = mii_reset ( &icp->mii ) ) != 0 ) {
- DBGC ( icp, "ICPLUS %p could not reset PHY: %s\n",
- icp, strerror ( rc ) );
- return rc;
- }
-
- return 0;
- }
-
- /**
- * Check link state
- *
- * @v netdev Network device
- */
- static void icplus_check_link ( struct net_device *netdev ) {
- struct icplus_nic *icp = netdev->priv;
- uint8_t phyctrl;
-
- /* Read link status */
- phyctrl = readb ( icp->regs + ICP_PHYCTRL );
- DBGC ( icp, "ICPLUS %p PHY control is %02x\n", icp, phyctrl );
-
- /* Update network device */
- if ( phyctrl & ICP_PHYCTRL_LINKSPEED ) {
- netdev_link_up ( netdev );
- } else {
- netdev_link_down ( netdev );
- }
- }
-
- /******************************************************************************
- *
- * Network device interface
- *
- ******************************************************************************
- */
-
- /**
- * Set descriptor ring base address
- *
- * @v icp IC+ device
- * @v offset Register offset
- * @v address Base address
- */
- static inline void icplus_set_base ( struct icplus_nic *icp, unsigned int offset,
- void *base ) {
- physaddr_t phys = virt_to_bus ( base );
-
- /* Program base address registers */
- writel ( ( phys & 0xffffffffUL ),
- ( icp->regs + offset + ICP_BASE_LO ) );
- if ( sizeof ( phys ) > sizeof ( uint32_t ) ) {
- writel ( ( ( ( uint64_t ) phys ) >> 32 ),
- ( icp->regs + offset + ICP_BASE_HI ) );
- } else {
- writel ( 0, ( icp->regs + offset + ICP_BASE_HI ) );
- }
- }
-
- /**
- * Create descriptor ring
- *
- * @v icp IC+ device
- * @v ring Descriptor ring
- * @ret rc Return status code
- */
- static int icplus_create_ring ( struct icplus_nic *icp, struct icplus_ring *ring ) {
- size_t len = ( sizeof ( ring->entry[0] ) * ICP_NUM_DESC );
- int rc;
- unsigned int i;
- struct icplus_descriptor *desc;
- struct icplus_descriptor *next;
-
- /* Allocate descriptor ring */
- ring->entry = malloc_dma ( len, ICP_ALIGN );
- if ( ! ring->entry ) {
- rc = -ENOMEM;
- goto err_alloc;
- }
-
- /* Initialise descriptor ring */
- memset ( ring->entry, 0, len );
- for ( i = 0 ; i < ICP_NUM_DESC ; i++ ) {
- desc = &ring->entry[i];
- next = &ring->entry[ ( i + 1 ) % ICP_NUM_DESC ];
- desc->next = cpu_to_le64 ( virt_to_bus ( next ) );
- desc->flags = ( ICP_TX_UNALIGN | ICP_TX_INDICATE );
- desc->control = ( ICP_TX_SOLE_FRAG | ICP_DONE );
- }
-
- /* Reset transmit producer & consumer counters */
- ring->prod = 0;
- ring->cons = 0;
-
- DBGC ( icp, "ICP %p %s ring at [%#08lx,%#08lx)\n",
- icp, ( ( ring->listptr == ICP_TFDLISTPTR ) ? "TX" : "RX" ),
- virt_to_bus ( ring->entry ),
- ( virt_to_bus ( ring->entry ) + len ) );
- return 0;
-
- free_dma ( ring->entry, len );
- ring->entry = NULL;
- err_alloc:
- return rc;
- }
-
- /**
- * Destroy descriptor ring
- *
- * @v icp IC+ device
- * @v ring Descriptor ring
- */
- static void icplus_destroy_ring ( struct icplus_nic *icp __unused,
- struct icplus_ring *ring ) {
- size_t len = ( sizeof ( ring->entry[0] ) * ICP_NUM_DESC );
-
- /* Free descriptor ring */
- free_dma ( ring->entry, len );
- ring->entry = NULL;
- }
-
- /**
- * Refill receive descriptor ring
- *
- * @v icp IC+ device
- */
- void icplus_refill_rx ( struct icplus_nic *icp ) {
- struct icplus_descriptor *desc;
- struct io_buffer *iobuf;
- unsigned int rx_idx;
- physaddr_t address;
- unsigned int refilled = 0;
-
- /* Refill ring */
- while ( ( icp->rx.prod - icp->rx.cons ) < ICP_NUM_DESC ) {
-
- /* Allocate I/O buffer */
- iobuf = alloc_iob ( ICP_RX_MAX_LEN );
- if ( ! iobuf ) {
- /* Wait for next refill */
- break;
- }
-
- /* Get next receive descriptor */
- rx_idx = ( icp->rx.prod++ % ICP_NUM_DESC );
- desc = &icp->rx.entry[rx_idx];
-
- /* Populate receive descriptor */
- address = virt_to_bus ( iobuf->data );
- desc->data.address = cpu_to_le64 ( address );
- desc->data.len = cpu_to_le16 ( ICP_RX_MAX_LEN );
- wmb();
- desc->control = 0;
-
- /* Record I/O buffer */
- assert ( icp->rx_iobuf[rx_idx] == NULL );
- icp->rx_iobuf[rx_idx] = iobuf;
-
- DBGC2 ( icp, "ICP %p RX %d is [%llx,%llx)\n", icp, rx_idx,
- ( ( unsigned long long ) address ),
- ( ( unsigned long long ) address + ICP_RX_MAX_LEN ) );
- refilled++;
- }
-
- /* Push descriptors to card, if applicable */
- if ( refilled ) {
- wmb();
- writew ( ICP_DMACTRL_RXPOLLNOW, icp->regs + ICP_DMACTRL );
- }
- }
-
- /**
- * Open network device
- *
- * @v netdev Network device
- * @ret rc Return status code
- */
- static int icplus_open ( struct net_device *netdev ) {
- struct icplus_nic *icp = netdev->priv;
- int rc;
-
- /* Create transmit descriptor ring */
- if ( ( rc = icplus_create_ring ( icp, &icp->tx ) ) != 0 )
- goto err_create_tx;
-
- /* Create receive descriptor ring */
- if ( ( rc = icplus_create_ring ( icp, &icp->rx ) ) != 0 )
- goto err_create_rx;
-
- /* Program descriptor base address */
- icplus_set_base ( icp, icp->tx.listptr, icp->tx.entry );
- icplus_set_base ( icp, icp->rx.listptr, icp->rx.entry );
-
- /* Enable receive mode */
- writew ( ( ICP_RXMODE_UNICAST | ICP_RXMODE_MULTICAST |
- ICP_RXMODE_BROADCAST | ICP_RXMODE_ALLFRAMES ),
- icp->regs + ICP_RXMODE );
-
- /* Enable transmitter and receiver */
- writel ( ( ICP_MACCTRL_TXENABLE | ICP_MACCTRL_RXENABLE |
- ICP_MACCTRL_DUPLEX ), icp->regs + ICP_MACCTRL );
-
- /* Fill receive ring */
- icplus_refill_rx ( icp );
-
- /* Check link state */
- icplus_check_link ( netdev );
-
- return 0;
-
- icplus_reset ( icp );
- icplus_destroy_ring ( icp, &icp->rx );
- err_create_rx:
- icplus_destroy_ring ( icp, &icp->tx );
- err_create_tx:
- return rc;
- }
-
- /**
- * Close network device
- *
- * @v netdev Network device
- */
- static void icplus_close ( struct net_device *netdev ) {
- struct icplus_nic *icp = netdev->priv;
- unsigned int i;
-
- /* Perform global reset */
- icplus_reset ( icp );
-
- /* Destroy receive descriptor ring */
- icplus_destroy_ring ( icp, &icp->rx );
-
- /* Destroy transmit descriptor ring */
- icplus_destroy_ring ( icp, &icp->tx );
-
- /* Discard any unused receive buffers */
- for ( i = 0 ; i < ICP_NUM_DESC ; i++ ) {
- if ( icp->rx_iobuf[i] )
- free_iob ( icp->rx_iobuf[i] );
- icp->rx_iobuf[i] = NULL;
- }
- }
-
- /**
- * Transmit packet
- *
- * @v netdev Network device
- * @v iobuf I/O buffer
- * @ret rc Return status code
- */
- static int icplus_transmit ( struct net_device *netdev,
- struct io_buffer *iobuf ) {
- struct icplus_nic *icp = netdev->priv;
- struct icplus_descriptor *desc;
- unsigned int tx_idx;
- physaddr_t address;
-
- /* Check if ring is full */
- if ( ( icp->tx.prod - icp->tx.cons ) >= ICP_NUM_DESC ) {
- DBGC ( icp, "ICP %p out of transmit descriptors\n", icp );
- return -ENOBUFS;
- }
-
- /* Find TX descriptor entry to use */
- tx_idx = ( icp->tx.prod++ % ICP_NUM_DESC );
- desc = &icp->tx.entry[tx_idx];
-
- /* Fill in TX descriptor */
- address = virt_to_bus ( iobuf->data );
- desc->data.address = cpu_to_le64 ( address );
- desc->data.len = cpu_to_le16 ( iob_len ( iobuf ) );
- wmb();
- desc->control = ICP_TX_SOLE_FRAG;
- wmb();
-
- /* Ring doorbell */
- writew ( ICP_DMACTRL_TXPOLLNOW, icp->regs + ICP_DMACTRL );
-
- DBGC2 ( icp, "ICP %p TX %d is [%llx,%llx)\n", icp, tx_idx,
- ( ( unsigned long long ) address ),
- ( ( unsigned long long ) address + iob_len ( iobuf ) ) );
- DBGC2_HDA ( icp, virt_to_phys ( desc ), desc, sizeof ( *desc ) );
- return 0;
- }
-
- /**
- * Poll for completed packets
- *
- * @v netdev Network device
- */
- static void icplus_poll_tx ( struct net_device *netdev ) {
- struct icplus_nic *icp = netdev->priv;
- struct icplus_descriptor *desc;
- unsigned int tx_idx;
-
- /* Check for completed packets */
- while ( icp->tx.cons != icp->tx.prod ) {
-
- /* Get next transmit descriptor */
- tx_idx = ( icp->tx.cons % ICP_NUM_DESC );
- desc = &icp->tx.entry[tx_idx];
-
- /* Stop if descriptor is still in use */
- if ( ! ( desc->control & ICP_DONE ) )
- return;
-
- /* Complete TX descriptor */
- DBGC2 ( icp, "ICP %p TX %d complete\n", icp, tx_idx );
- netdev_tx_complete_next ( netdev );
- icp->tx.cons++;
- }
- }
-
- /**
- * Poll for received packets
- *
- * @v netdev Network device
- */
- static void icplus_poll_rx ( struct net_device *netdev ) {
- struct icplus_nic *icp = netdev->priv;
- struct icplus_descriptor *desc;
- struct io_buffer *iobuf;
- unsigned int rx_idx;
- size_t len;
-
- /* Check for received packets */
- while ( icp->rx.cons != icp->rx.prod ) {
-
- /* Get next transmit descriptor */
- rx_idx = ( icp->rx.cons % ICP_NUM_DESC );
- desc = &icp->rx.entry[rx_idx];
-
- /* Stop if descriptor is still in use */
- if ( ! ( desc->control & ICP_DONE ) )
- return;
-
- /* Populate I/O buffer */
- iobuf = icp->rx_iobuf[rx_idx];
- icp->rx_iobuf[rx_idx] = NULL;
- len = le16_to_cpu ( desc->len );
- iob_put ( iobuf, len );
-
- /* Hand off to network stack */
- if ( desc->flags & ( ICP_RX_ERR_OVERRUN | ICP_RX_ERR_RUNT |
- ICP_RX_ERR_ALIGN | ICP_RX_ERR_FCS |
- ICP_RX_ERR_OVERSIZED | ICP_RX_ERR_LEN ) ) {
- DBGC ( icp, "ICP %p RX %d error (length %zd, "
- "flags %02x)\n", icp, rx_idx, len, desc->flags );
- netdev_rx_err ( netdev, iobuf, -EIO );
- } else {
- DBGC2 ( icp, "ICP %p RX %d complete (length "
- "%zd)\n", icp, rx_idx, len );
- netdev_rx ( netdev, iobuf );
- }
- icp->rx.cons++;
- }
- }
-
- /**
- * Poll for completed and received packets
- *
- * @v netdev Network device
- */
- static void icplus_poll ( struct net_device *netdev ) {
- struct icplus_nic *icp = netdev->priv;
- uint16_t intstatus;
- uint32_t txstatus;
-
- /* Check for interrupts */
- intstatus = readw ( icp->regs + ICP_INTSTATUS );
-
- /* Poll for TX completions, if applicable */
- if ( intstatus & ICP_INTSTATUS_TXCOMPLETE ) {
- txstatus = readl ( icp->regs + ICP_TXSTATUS );
- if ( txstatus & ICP_TXSTATUS_ERROR )
- DBGC ( icp, "ICP %p TX error: %08x\n", icp, txstatus );
- icplus_poll_tx ( netdev );
- }
-
- /* Poll for RX completions, if applicable */
- if ( intstatus & ICP_INTSTATUS_RXDMACOMPLETE ) {
- writew ( ICP_INTSTATUS_RXDMACOMPLETE, icp->regs + ICP_INTSTATUS );
- icplus_poll_rx ( netdev );
- }
-
- /* Check link state, if applicable */
- if ( intstatus & ICP_INTSTATUS_LINKEVENT ) {
- writew ( ICP_INTSTATUS_LINKEVENT, icp->regs + ICP_INTSTATUS );
- icplus_check_link ( netdev );
- }
-
- /* Refill receive ring */
- icplus_refill_rx ( icp );
- }
-
- /**
- * Enable or disable interrupts
- *
- * @v netdev Network device
- * @v enable Interrupts should be enabled
- */
- static void icplus_irq ( struct net_device *netdev, int enable ) {
- struct icplus_nic *icp = netdev->priv;
-
- DBGC ( icp, "ICPLUS %p does not yet support interrupts\n", icp );
- ( void ) enable;
- }
-
- /** IC+ network device operations */
- static struct net_device_operations icplus_operations = {
- .open = icplus_open,
- .close = icplus_close,
- .transmit = icplus_transmit,
- .poll = icplus_poll,
- .irq = icplus_irq,
- };
-
- /******************************************************************************
- *
- * PCI interface
- *
- ******************************************************************************
- */
-
- /**
- * Probe PCI device
- *
- * @v pci PCI device
- * @ret rc Return status code
- */
- static int icplus_probe ( struct pci_device *pci ) {
- struct net_device *netdev;
- struct icplus_nic *icp;
- int rc;
-
- /* Allocate and initialise net device */
- netdev = alloc_etherdev ( sizeof ( *icp ) );
- if ( ! netdev ) {
- rc = -ENOMEM;
- goto err_alloc;
- }
- netdev_init ( netdev, &icplus_operations );
- icp = netdev->priv;
- pci_set_drvdata ( pci, netdev );
- netdev->dev = &pci->dev;
- memset ( icp, 0, sizeof ( *icp ) );
- icp->miibit.basher.op = &icplus_basher_ops;
- init_mii_bit_basher ( &icp->miibit );
- mii_init ( &icp->mii, &icp->miibit.mdio, 0 );
- icp->tx.listptr = ICP_TFDLISTPTR;
- icp->rx.listptr = ICP_RFDLISTPTR;
-
- /* Fix up PCI device */
- adjust_pci_device ( pci );
-
- /* Map registers */
- icp->regs = ioremap ( pci->membase, ICP_BAR_SIZE );
- if ( ! icp->regs ) {
- rc = -ENODEV;
- goto err_ioremap;
- }
-
- /* Reset the NIC */
- if ( ( rc = icplus_reset ( icp ) ) != 0 )
- goto err_reset;
-
- /* Initialise EEPROM */
- icplus_init_eeprom ( icp );
-
- /* Read EEPROM MAC address */
- if ( ( rc = nvs_read ( &icp->eeprom, ICP_EEPROM_MAC,
- netdev->hw_addr, ETH_ALEN ) ) != 0 ) {
- DBGC ( icp, "ICPLUS %p could not read EEPROM MAC address: %s\n",
- icp, strerror ( rc ) );
- goto err_eeprom;
- }
-
- /* Configure PHY */
- if ( ( rc = icplus_init_phy ( icp ) ) != 0 )
- goto err_phy;
-
- /* Register network device */
- if ( ( rc = register_netdev ( netdev ) ) != 0 )
- goto err_register_netdev;
-
- /* Set initial link state */
- icplus_check_link ( netdev );
-
- return 0;
-
- unregister_netdev ( netdev );
- err_register_netdev:
- err_phy:
- err_eeprom:
- icplus_reset ( icp );
- err_reset:
- iounmap ( icp->regs );
- err_ioremap:
- netdev_nullify ( netdev );
- netdev_put ( netdev );
- err_alloc:
- return rc;
- }
-
- /**
- * Remove PCI device
- *
- * @v pci PCI device
- */
- static void icplus_remove ( struct pci_device *pci ) {
- struct net_device *netdev = pci_get_drvdata ( pci );
- struct icplus_nic *icp = netdev->priv;
-
- /* Unregister network device */
- unregister_netdev ( netdev );
-
- /* Reset card */
- icplus_reset ( icp );
-
- /* Free network device */
- iounmap ( icp->regs );
- netdev_nullify ( netdev );
- netdev_put ( netdev );
- }
-
- /** IC+ PCI device IDs */
- static struct pci_device_id icplus_nics[] = {
- PCI_ROM ( 0x13f0, 0x1023, "ip1000a", "IP1000A", 0 ),
- };
-
- /** IC+ PCI driver */
- struct pci_driver icplus_driver __pci_driver = {
- .ids = icplus_nics,
- .id_count = ( sizeof ( icplus_nics ) / sizeof ( icplus_nics[0] ) ),
- .probe = icplus_probe,
- .remove = icplus_remove,
- };
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