diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/vmxnet3.c')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/vmxnet3.c | 716 |
1 files changed, 0 insertions, 716 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/vmxnet3.c b/qemu/roms/ipxe/src/drivers/net/vmxnet3.c deleted file mode 100644 index 8d4f4b843..000000000 --- a/qemu/roms/ipxe/src/drivers/net/vmxnet3.c +++ /dev/null @@ -1,716 +0,0 @@ -/* - * Copyright (C) 2011 Michael Brown <mbrown@fensystems.co.uk>. - * - * 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 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 <errno.h> -#include <assert.h> -#include <byteswap.h> -#include <ipxe/pci.h> -#include <ipxe/io.h> -#include <ipxe/malloc.h> -#include <ipxe/profile.h> -#include <ipxe/iobuf.h> -#include <ipxe/netdevice.h> -#include <ipxe/if_ether.h> -#include <ipxe/ethernet.h> -#include "vmxnet3.h" - -/** - * @file - * - * VMware vmxnet3 virtual NIC driver - * - */ - -/** VM command profiler */ -static struct profiler vmxnet3_vm_command_profiler __profiler = - { .name = "vmxnet3.vm_command" }; - -/** VM transmit profiler */ -static struct profiler vmxnet3_vm_tx_profiler __profiler = - { .name = "vmxnet3.vm_tx" }; - -/** VM receive refill profiler */ -static struct profiler vmxnet3_vm_refill_profiler __profiler = - { .name = "vmxnet3.vm_refill" }; - -/** VM event profiler */ -static struct profiler vmxnet3_vm_event_profiler __profiler = - { .name = "vmxnet3.vm_event" }; - -/** - * Issue command - * - * @v vmxnet vmxnet3 NIC - * @v command Command to issue - * @ret result Command result - */ -static inline uint32_t vmxnet3_command ( struct vmxnet3_nic *vmxnet, - uint32_t command ) { - uint32_t result; - - /* Issue command */ - profile_start ( &vmxnet3_vm_command_profiler ); - writel ( command, ( vmxnet->vd + VMXNET3_VD_CMD ) ); - result = readl ( vmxnet->vd + VMXNET3_VD_CMD ); - profile_stop ( &vmxnet3_vm_command_profiler ); - profile_exclude ( &vmxnet3_vm_command_profiler ); - - return result; -} - -/** - * Transmit packet - * - * @v netdev Network device - * @v iobuf I/O buffer - * @ret rc Return status code - */ -static int vmxnet3_transmit ( struct net_device *netdev, - struct io_buffer *iobuf ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - struct vmxnet3_tx_desc *tx_desc; - unsigned int desc_idx; - unsigned int generation; - - /* Check that we have a free transmit descriptor */ - desc_idx = ( vmxnet->count.tx_prod % VMXNET3_NUM_TX_DESC ); - generation = ( ( vmxnet->count.tx_prod & VMXNET3_NUM_TX_DESC ) ? - 0 : cpu_to_le32 ( VMXNET3_TXF_GEN ) ); - if ( vmxnet->tx_iobuf[desc_idx] ) { - DBGC ( vmxnet, "VMXNET3 %p out of transmit descriptors\n", - vmxnet ); - return -ENOBUFS; - } - - /* Increment producer counter */ - vmxnet->count.tx_prod++; - - /* Store I/O buffer for later completion */ - vmxnet->tx_iobuf[desc_idx] = iobuf; - - /* Populate transmit descriptor */ - tx_desc = &vmxnet->dma->tx_desc[desc_idx]; - tx_desc->address = cpu_to_le64 ( virt_to_bus ( iobuf->data ) ); - tx_desc->flags[0] = ( generation | cpu_to_le32 ( iob_len ( iobuf ) ) ); - tx_desc->flags[1] = cpu_to_le32 ( VMXNET3_TXF_CQ | VMXNET3_TXF_EOP ); - - /* Hand over descriptor to NIC */ - wmb(); - profile_start ( &vmxnet3_vm_tx_profiler ); - writel ( ( vmxnet->count.tx_prod % VMXNET3_NUM_TX_DESC ), - ( vmxnet->pt + VMXNET3_PT_TXPROD ) ); - profile_stop ( &vmxnet3_vm_tx_profiler ); - profile_exclude ( &vmxnet3_vm_tx_profiler ); - - return 0; -} - -/** - * Poll for completed transmissions - * - * @v netdev Network device - */ -static void vmxnet3_poll_tx ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - struct vmxnet3_tx_comp *tx_comp; - struct io_buffer *iobuf; - unsigned int comp_idx; - unsigned int desc_idx; - unsigned int generation; - - while ( 1 ) { - - /* Look for completed descriptors */ - comp_idx = ( vmxnet->count.tx_cons % VMXNET3_NUM_TX_COMP ); - generation = ( ( vmxnet->count.tx_cons & VMXNET3_NUM_TX_COMP ) ? - 0 : cpu_to_le32 ( VMXNET3_TXCF_GEN ) ); - tx_comp = &vmxnet->dma->tx_comp[comp_idx]; - if ( generation != ( tx_comp->flags & - cpu_to_le32 ( VMXNET3_TXCF_GEN ) ) ) { - break; - } - - /* Increment consumer counter */ - vmxnet->count.tx_cons++; - - /* Locate corresponding transmit descriptor */ - desc_idx = ( le32_to_cpu ( tx_comp->index ) % - VMXNET3_NUM_TX_DESC ); - iobuf = vmxnet->tx_iobuf[desc_idx]; - if ( ! iobuf ) { - DBGC ( vmxnet, "VMXNET3 %p completed on empty transmit " - "buffer %#x/%#x\n", vmxnet, comp_idx, desc_idx ); - netdev_tx_err ( netdev, NULL, -ENOTTY ); - continue; - } - - /* Remove I/O buffer from transmit queue */ - vmxnet->tx_iobuf[desc_idx] = NULL; - - /* Report transmission completion to network layer */ - DBGC2 ( vmxnet, "VMXNET3 %p completed TX %#x/%#x (len %#zx)\n", - vmxnet, comp_idx, desc_idx, iob_len ( iobuf ) ); - netdev_tx_complete ( netdev, iobuf ); - } -} - -/** - * Flush any uncompleted transmit buffers - * - * @v netdev Network device - */ -static void vmxnet3_flush_tx ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - unsigned int i; - - for ( i = 0 ; i < VMXNET3_NUM_TX_DESC ; i++ ) { - if ( vmxnet->tx_iobuf[i] ) { - netdev_tx_complete_err ( netdev, vmxnet->tx_iobuf[i], - -ECANCELED ); - vmxnet->tx_iobuf[i] = NULL; - } - } -} - -/** - * Refill receive ring - * - * @v netdev Network device - */ -static void vmxnet3_refill_rx ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - struct vmxnet3_rx_desc *rx_desc; - struct io_buffer *iobuf; - unsigned int orig_rx_prod = vmxnet->count.rx_prod; - unsigned int desc_idx; - unsigned int generation; - - /* Fill receive ring to specified fill level */ - while ( vmxnet->count.rx_fill < VMXNET3_RX_FILL ) { - - /* Locate receive descriptor */ - desc_idx = ( vmxnet->count.rx_prod % VMXNET3_NUM_RX_DESC ); - generation = ( ( vmxnet->count.rx_prod & VMXNET3_NUM_RX_DESC ) ? - 0 : cpu_to_le32 ( VMXNET3_RXF_GEN ) ); - assert ( vmxnet->rx_iobuf[desc_idx] == NULL ); - - /* Allocate I/O buffer */ - iobuf = alloc_iob ( VMXNET3_MTU + NET_IP_ALIGN ); - if ( ! iobuf ) { - /* Non-fatal low memory condition */ - break; - } - iob_reserve ( iobuf, NET_IP_ALIGN ); - - /* Increment producer counter and fill level */ - vmxnet->count.rx_prod++; - vmxnet->count.rx_fill++; - - /* Store I/O buffer for later completion */ - vmxnet->rx_iobuf[desc_idx] = iobuf; - - /* Populate receive descriptor */ - rx_desc = &vmxnet->dma->rx_desc[desc_idx]; - rx_desc->address = cpu_to_le64 ( virt_to_bus ( iobuf->data ) ); - rx_desc->flags = ( generation | cpu_to_le32 ( VMXNET3_MTU ) ); - - } - - /* Hand over any new descriptors to NIC */ - if ( vmxnet->count.rx_prod != orig_rx_prod ) { - wmb(); - profile_start ( &vmxnet3_vm_refill_profiler ); - writel ( ( vmxnet->count.rx_prod % VMXNET3_NUM_RX_DESC ), - ( vmxnet->pt + VMXNET3_PT_RXPROD ) ); - profile_stop ( &vmxnet3_vm_refill_profiler ); - profile_exclude ( &vmxnet3_vm_refill_profiler ); - } -} - -/** - * Poll for received packets - * - * @v netdev Network device - */ -static void vmxnet3_poll_rx ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - struct vmxnet3_rx_comp *rx_comp; - struct io_buffer *iobuf; - unsigned int comp_idx; - unsigned int desc_idx; - unsigned int generation; - size_t len; - - while ( 1 ) { - - /* Look for completed descriptors */ - comp_idx = ( vmxnet->count.rx_cons % VMXNET3_NUM_RX_COMP ); - generation = ( ( vmxnet->count.rx_cons & VMXNET3_NUM_RX_COMP ) ? - 0 : cpu_to_le32 ( VMXNET3_RXCF_GEN ) ); - rx_comp = &vmxnet->dma->rx_comp[comp_idx]; - if ( generation != ( rx_comp->flags & - cpu_to_le32 ( VMXNET3_RXCF_GEN ) ) ) { - break; - } - - /* Increment consumer counter */ - vmxnet->count.rx_cons++; - - /* Locate corresponding receive descriptor */ - desc_idx = ( le32_to_cpu ( rx_comp->index ) % - VMXNET3_NUM_RX_DESC ); - iobuf = vmxnet->rx_iobuf[desc_idx]; - if ( ! iobuf ) { - DBGC ( vmxnet, "VMXNET3 %p completed on empty receive " - "buffer %#x/%#x\n", vmxnet, comp_idx, desc_idx ); - netdev_rx_err ( netdev, NULL, -ENOTTY ); - continue; - } - - /* Remove I/O buffer from receive queue */ - vmxnet->rx_iobuf[desc_idx] = NULL; - vmxnet->count.rx_fill--; - - /* Deliver packet to network layer */ - len = ( le32_to_cpu ( rx_comp->len ) & - ( VMXNET3_MAX_PACKET_LEN - 1 ) ); - DBGC2 ( vmxnet, "VMXNET3 %p completed RX %#x/%#x (len %#zx)\n", - vmxnet, comp_idx, desc_idx, len ); - iob_put ( iobuf, len ); - netdev_rx ( netdev, iobuf ); - } -} - -/** - * Flush any uncompleted receive buffers - * - * @v netdev Network device - */ -static void vmxnet3_flush_rx ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - struct io_buffer *iobuf; - unsigned int i; - - for ( i = 0 ; i < VMXNET3_NUM_RX_DESC ; i++ ) { - if ( ( iobuf = vmxnet->rx_iobuf[i] ) != NULL ) { - netdev_rx_err ( netdev, iobuf, -ECANCELED ); - vmxnet->rx_iobuf[i] = NULL; - } - } -} - -/** - * Check link state - * - * @v netdev Network device - */ -static void vmxnet3_check_link ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - uint32_t state; - int link_up; - unsigned int link_speed; - - /* Get link state */ - state = vmxnet3_command ( vmxnet, VMXNET3_CMD_GET_LINK ); - link_up = ( state & 1 ); - link_speed = ( state >> 16 ); - - /* Report link state to network device */ - if ( link_up ) { - DBGC ( vmxnet, "VMXNET3 %p link is up at %d Mbps\n", - vmxnet, link_speed ); - netdev_link_up ( netdev ); - } else { - DBGC ( vmxnet, "VMXNET3 %p link is down\n", vmxnet ); - netdev_link_down ( netdev ); - } -} - -/** - * Poll for events - * - * @v netdev Network device - */ -static void vmxnet3_poll_events ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - uint32_t events; - - /* Do nothing unless there are events to process */ - if ( ! vmxnet->dma->shared.ecr ) - return; - events = le32_to_cpu ( vmxnet->dma->shared.ecr ); - - /* Acknowledge these events */ - profile_start ( &vmxnet3_vm_event_profiler ); - writel ( events, ( vmxnet->vd + VMXNET3_VD_ECR ) ); - profile_stop ( &vmxnet3_vm_event_profiler ); - profile_exclude ( &vmxnet3_vm_event_profiler ); - - /* Check for link state change */ - if ( events & VMXNET3_ECR_LINK ) { - vmxnet3_check_link ( netdev ); - events &= ~VMXNET3_ECR_LINK; - } - - /* Check for queue errors */ - if ( events & ( VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR ) ) { - vmxnet3_command ( vmxnet, VMXNET3_CMD_GET_QUEUE_STATUS ); - DBGC ( vmxnet, "VMXNET3 %p queue error status (TX %08x, RX " - "%08x)\n", vmxnet, - le32_to_cpu ( vmxnet->dma->queues.tx.status.error ), - le32_to_cpu ( vmxnet->dma->queues.rx.status.error ) ); - /* Report errors to allow for visibility via "ifstat" */ - if ( events & VMXNET3_ECR_TQERR ) - netdev_tx_err ( netdev, NULL, -EPIPE ); - if ( events & VMXNET3_ECR_RQERR ) - netdev_rx_err ( netdev, NULL, -EPIPE ); - events &= ~( VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR ); - } - - /* Check for unknown events */ - if ( events ) { - DBGC ( vmxnet, "VMXNET3 %p unknown events %08x\n", - vmxnet, events ); - /* Report error to allow for visibility via "ifstat" */ - netdev_rx_err ( netdev, NULL, -ENODEV ); - } -} - -/** - * Poll network device - * - * @v netdev Network device - */ -static void vmxnet3_poll ( struct net_device *netdev ) { - - vmxnet3_poll_events ( netdev ); - vmxnet3_poll_tx ( netdev ); - vmxnet3_poll_rx ( netdev ); - vmxnet3_refill_rx ( netdev ); -} - -/** - * Enable/disable interrupts - * - * @v netdev Network device - * @v enable Interrupts should be enabled - */ -static void vmxnet3_irq ( struct net_device *netdev, int enable ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - - DBGC ( vmxnet, "VMXNET3 %p %s IRQ not implemented\n", - vmxnet, ( enable ? "enable" : "disable" ) ); -} - -/** - * Set MAC address - * - * @v vmxnet vmxnet3 NIC - * @v ll_addr Link-layer address to set - */ -static void vmxnet3_set_ll_addr ( struct vmxnet3_nic *vmxnet, - const void *ll_addr ) { - struct { - uint32_t low; - uint32_t high; - } __attribute__ (( packed )) mac; - - memset ( &mac, 0, sizeof ( mac ) ); - memcpy ( &mac, ll_addr, ETH_ALEN ); - writel ( cpu_to_le32 ( mac.low ), ( vmxnet->vd + VMXNET3_VD_MACL ) ); - writel ( cpu_to_le32 ( mac.high ), ( vmxnet->vd + VMXNET3_VD_MACH ) ); -} - -/** - * Open NIC - * - * @v netdev Network device - * @ret rc Return status code - */ -static int vmxnet3_open ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - struct vmxnet3_shared *shared; - struct vmxnet3_queues *queues; - uint64_t shared_bus; - uint64_t queues_bus; - uint32_t status; - int rc; - - /* Allocate DMA areas */ - vmxnet->dma = malloc_dma ( sizeof ( *vmxnet->dma ), VMXNET3_DMA_ALIGN ); - if ( ! vmxnet->dma ) { - DBGC ( vmxnet, "VMXNET3 %p could not allocate DMA area\n", - vmxnet ); - rc = -ENOMEM; - goto err_alloc_dma; - } - memset ( vmxnet->dma, 0, sizeof ( *vmxnet->dma ) ); - - /* Populate queue descriptors */ - queues = &vmxnet->dma->queues; - queues->tx.cfg.desc_address = - cpu_to_le64 ( virt_to_bus ( &vmxnet->dma->tx_desc ) ); - queues->tx.cfg.comp_address = - cpu_to_le64 ( virt_to_bus ( &vmxnet->dma->tx_comp ) ); - queues->tx.cfg.num_desc = cpu_to_le32 ( VMXNET3_NUM_TX_DESC ); - queues->tx.cfg.num_comp = cpu_to_le32 ( VMXNET3_NUM_TX_COMP ); - queues->rx.cfg.desc_address[0] = - cpu_to_le64 ( virt_to_bus ( &vmxnet->dma->rx_desc ) ); - queues->rx.cfg.comp_address = - cpu_to_le64 ( virt_to_bus ( &vmxnet->dma->rx_comp ) ); - queues->rx.cfg.num_desc[0] = cpu_to_le32 ( VMXNET3_NUM_RX_DESC ); - queues->rx.cfg.num_comp = cpu_to_le32 ( VMXNET3_NUM_RX_COMP ); - queues_bus = virt_to_bus ( queues ); - DBGC ( vmxnet, "VMXNET3 %p queue descriptors at %08llx+%zx\n", - vmxnet, queues_bus, sizeof ( *queues ) ); - - /* Populate shared area */ - shared = &vmxnet->dma->shared; - shared->magic = cpu_to_le32 ( VMXNET3_SHARED_MAGIC ); - shared->misc.version = cpu_to_le32 ( VMXNET3_VERSION_MAGIC ); - shared->misc.version_support = cpu_to_le32 ( VMXNET3_VERSION_SELECT ); - shared->misc.upt_version_support = - cpu_to_le32 ( VMXNET3_UPT_VERSION_SELECT ); - shared->misc.queue_desc_address = cpu_to_le64 ( queues_bus ); - shared->misc.queue_desc_len = cpu_to_le32 ( sizeof ( *queues ) ); - shared->misc.mtu = cpu_to_le32 ( VMXNET3_MTU ); - shared->misc.num_tx_queues = 1; - shared->misc.num_rx_queues = 1; - shared->interrupt.num_intrs = 1; - shared->interrupt.control = cpu_to_le32 ( VMXNET3_IC_DISABLE_ALL ); - shared->rx_filter.mode = cpu_to_le32 ( VMXNET3_RXM_UCAST | - VMXNET3_RXM_BCAST | - VMXNET3_RXM_ALL_MULTI ); - shared_bus = virt_to_bus ( shared ); - DBGC ( vmxnet, "VMXNET3 %p shared area at %08llx+%zx\n", - vmxnet, shared_bus, sizeof ( *shared ) ); - - /* Zero counters */ - memset ( &vmxnet->count, 0, sizeof ( vmxnet->count ) ); - - /* Set MAC address */ - vmxnet3_set_ll_addr ( vmxnet, &netdev->ll_addr ); - - /* Pass shared area to device */ - writel ( ( shared_bus >> 0 ), ( vmxnet->vd + VMXNET3_VD_DSAL ) ); - writel ( ( shared_bus >> 32 ), ( vmxnet->vd + VMXNET3_VD_DSAH ) ); - - /* Activate device */ - if ( ( status = vmxnet3_command ( vmxnet, - VMXNET3_CMD_ACTIVATE_DEV ) ) != 0 ) { - DBGC ( vmxnet, "VMXNET3 %p could not activate (status %#x)\n", - vmxnet, status ); - rc = -EIO; - goto err_activate; - } - - /* Fill receive ring */ - vmxnet3_refill_rx ( netdev ); - - return 0; - - vmxnet3_command ( vmxnet, VMXNET3_CMD_QUIESCE_DEV ); - vmxnet3_command ( vmxnet, VMXNET3_CMD_RESET_DEV ); - err_activate: - vmxnet3_flush_tx ( netdev ); - vmxnet3_flush_rx ( netdev ); - free_dma ( vmxnet->dma, sizeof ( *vmxnet->dma ) ); - err_alloc_dma: - return rc; -} - -/** - * Close NIC - * - * @v netdev Network device - */ -static void vmxnet3_close ( struct net_device *netdev ) { - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - - vmxnet3_command ( vmxnet, VMXNET3_CMD_QUIESCE_DEV ); - vmxnet3_command ( vmxnet, VMXNET3_CMD_RESET_DEV ); - vmxnet3_flush_tx ( netdev ); - vmxnet3_flush_rx ( netdev ); - free_dma ( vmxnet->dma, sizeof ( *vmxnet->dma ) ); -} - -/** vmxnet3 net device operations */ -static struct net_device_operations vmxnet3_operations = { - .open = vmxnet3_open, - .close = vmxnet3_close, - .transmit = vmxnet3_transmit, - .poll = vmxnet3_poll, - .irq = vmxnet3_irq, -}; - -/** - * Check version - * - * @v vmxnet vmxnet3 NIC - * @ret rc Return status code - */ -static int vmxnet3_check_version ( struct vmxnet3_nic *vmxnet ) { - uint32_t version; - uint32_t upt_version; - - /* Read version */ - version = readl ( vmxnet->vd + VMXNET3_VD_VRRS ); - upt_version = readl ( vmxnet->vd + VMXNET3_VD_UVRS ); - DBGC ( vmxnet, "VMXNET3 %p is version %d (UPT version %d)\n", - vmxnet, version, upt_version ); - - /* Inform NIC of driver version */ - writel ( VMXNET3_VERSION_SELECT, ( vmxnet->vd + VMXNET3_VD_VRRS ) ); - writel ( VMXNET3_UPT_VERSION_SELECT, ( vmxnet->vd + VMXNET3_VD_UVRS ) ); - - return 0; -} - -/** - * Get permanent MAC address - * - * @v vmxnet vmxnet3 NIC - * @v hw_addr Hardware address to fill in - */ -static void vmxnet3_get_hw_addr ( struct vmxnet3_nic *vmxnet, void *hw_addr ) { - struct { - uint32_t low; - uint32_t high; - } __attribute__ (( packed )) mac; - - mac.low = le32_to_cpu ( vmxnet3_command ( vmxnet, - VMXNET3_CMD_GET_PERM_MAC_LO ) ); - mac.high = le32_to_cpu ( vmxnet3_command ( vmxnet, - VMXNET3_CMD_GET_PERM_MAC_HI ) ); - memcpy ( hw_addr, &mac, ETH_ALEN ); -} - -/** - * Probe PCI device - * - * @v pci PCI device - * @v id PCI ID - * @ret rc Return status code - */ -static int vmxnet3_probe ( struct pci_device *pci ) { - struct net_device *netdev; - struct vmxnet3_nic *vmxnet; - int rc; - - /* Allocate network device */ - netdev = alloc_etherdev ( sizeof ( *vmxnet ) ); - if ( ! netdev ) { - rc = -ENOMEM; - goto err_alloc_etherdev; - } - netdev_init ( netdev, &vmxnet3_operations ); - vmxnet = netdev_priv ( netdev ); - pci_set_drvdata ( pci, netdev ); - netdev->dev = &pci->dev; - memset ( vmxnet, 0, sizeof ( *vmxnet ) ); - - /* Fix up PCI device */ - adjust_pci_device ( pci ); - - /* Map PCI BARs */ - vmxnet->pt = ioremap ( pci_bar_start ( pci, VMXNET3_PT_BAR ), - VMXNET3_PT_LEN ); - if ( ! vmxnet->pt ) { - rc = -ENODEV; - goto err_ioremap_pt; - } - vmxnet->vd = ioremap ( pci_bar_start ( pci, VMXNET3_VD_BAR ), - VMXNET3_VD_LEN ); - if ( ! vmxnet->vd ) { - rc = -ENODEV; - goto err_ioremap_vd; - } - - /* Version check */ - if ( ( rc = vmxnet3_check_version ( vmxnet ) ) != 0 ) - goto err_check_version; - - /* Reset device */ - if ( ( rc = vmxnet3_command ( vmxnet, VMXNET3_CMD_RESET_DEV ) ) != 0 ) - goto err_reset; - - /* Read initial MAC address */ - vmxnet3_get_hw_addr ( vmxnet, &netdev->hw_addr ); - - /* Register network device */ - if ( ( rc = register_netdev ( netdev ) ) != 0 ) { - DBGC ( vmxnet, "VMXNET3 %p could not register net device: " - "%s\n", vmxnet, strerror ( rc ) ); - goto err_register_netdev; - } - - /* Get initial link state */ - vmxnet3_check_link ( netdev ); - - return 0; - - unregister_netdev ( netdev ); - err_register_netdev: - err_reset: - err_check_version: - iounmap ( vmxnet->vd ); - err_ioremap_vd: - iounmap ( vmxnet->pt ); - err_ioremap_pt: - netdev_nullify ( netdev ); - netdev_put ( netdev ); - err_alloc_etherdev: - return rc; -} - -/** - * Remove PCI device - * - * @v pci PCI device - */ -static void vmxnet3_remove ( struct pci_device *pci ) { - struct net_device *netdev = pci_get_drvdata ( pci ); - struct vmxnet3_nic *vmxnet = netdev_priv ( netdev ); - - unregister_netdev ( netdev ); - iounmap ( vmxnet->vd ); - iounmap ( vmxnet->pt ); - netdev_nullify ( netdev ); - netdev_put ( netdev ); -} - -/** vmxnet3 PCI IDs */ -static struct pci_device_id vmxnet3_nics[] = { - PCI_ROM ( 0x15ad, 0x07b0, "vmxnet3", "vmxnet3 virtual NIC", 0 ), -}; - -/** vmxnet3 PCI driver */ -struct pci_driver vmxnet3_driver __pci_driver = { - .ids = vmxnet3_nics, - .id_count = ( sizeof ( vmxnet3_nics ) / sizeof ( vmxnet3_nics[0] ) ), - .probe = vmxnet3_probe, - .remove = vmxnet3_remove, -}; |