diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/intelxvf.c')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/intelxvf.c | 466 |
1 files changed, 0 insertions, 466 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/intelxvf.c b/qemu/roms/ipxe/src/drivers/net/intelxvf.c deleted file mode 100644 index 05e34c127..000000000 --- a/qemu/roms/ipxe/src/drivers/net/intelxvf.c +++ /dev/null @@ -1,466 +0,0 @@ -/* - * Copyright (C) 2015 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 (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 <string.h> -#include <unistd.h> -#include <errno.h> -#include <ipxe/io.h> -#include <ipxe/pci.h> -#include <ipxe/netdevice.h> -#include <ipxe/ethernet.h> -#include "intelxvf.h" - -/** @file - * - * Intel 10 Gigabit Ethernet virtual function network card driver - * - */ - -/****************************************************************************** - * - * Diagnostics - * - ****************************************************************************** - */ - -/** - * Dump statistics - * - * @v intel Intel device - */ -static __attribute__ (( unused )) void -intelxvf_stats ( struct intel_nic *intel ) { - - DBGC ( intel, "INTEL %p TX %d (%#x%08x) RX %d (%#x%08x) multi %d\n", - intel, readl ( intel->regs + INTELXVF_GPTC ), - readl ( intel->regs + INTELXVF_GOTCH ), - readl ( intel->regs + INTELXVF_GOTCL ), - readl ( intel->regs + INTELXVF_GPRC ), - readl ( intel->regs + INTELXVF_GORCH ), - readl ( intel->regs + INTELXVF_GORCL ), - readl ( intel->regs + INTELXVF_MPRC ) ); -} - -/****************************************************************************** - * - * Device reset - * - ****************************************************************************** - */ - -/** - * Reset hardware - * - * @v intel Intel device - */ -static void intelxvf_reset ( struct intel_nic *intel ) { - - /* Perform a function-level reset */ - writel ( INTELXVF_CTRL_RST, intel->regs + INTELXVF_CTRL ); -} - -/****************************************************************************** - * - * Link state - * - ****************************************************************************** - */ - -/** - * Check link state - * - * @v netdev Network device - */ -static void intelxvf_check_link ( struct net_device *netdev ) { - struct intel_nic *intel = netdev->priv; - uint32_t links; - - /* Read link status */ - links = readl ( intel->regs + INTELXVF_LINKS ); - DBGC ( intel, "INTEL %p link status is %08x\n", intel, links ); - - /* Update network device */ - if ( links & INTELXVF_LINKS_UP ) { - netdev_link_up ( netdev ); - } else { - netdev_link_down ( netdev ); - } -} - -/****************************************************************************** - * - * Mailbox messages - * - ****************************************************************************** - */ - -/** - * Send negotiate API version message - * - * @v intel Intel device - * @v version Requested version - * @ret rc Return status code - */ -static int intelxvf_mbox_version ( struct intel_nic *intel, - unsigned int version ) { - union intelvf_msg msg; - int rc; - - /* Send set MTU message */ - memset ( &msg, 0, sizeof ( msg ) ); - msg.hdr = INTELXVF_MSG_TYPE_VERSION; - msg.version.version = version; - if ( ( rc = intelvf_mbox_msg ( intel, &msg ) ) != 0 ) { - DBGC ( intel, "INTEL %p negotiate API version failed: %s\n", - intel, strerror ( rc ) ); - return rc; - } - - /* Check response */ - if ( ( msg.hdr & INTELVF_MSG_TYPE_MASK ) != INTELXVF_MSG_TYPE_VERSION ){ - DBGC ( intel, "INTEL %p negotiate API version unexpected " - "response:\n", intel ); - DBGC_HDA ( intel, 0, &msg, sizeof ( msg ) ); - return -EPROTO; - } - - /* Check that this version is supported */ - if ( ! ( msg.hdr & INTELVF_MSG_ACK ) ) { - DBGC ( intel, "INTEL %p negotiate API version failed\n", - intel ); - return -EPERM; - } - - return 0; -} - -/****************************************************************************** - * - * Network device interface - * - ****************************************************************************** - */ - -/** - * Open network device - * - * @v netdev Network device - * @ret rc Return status code - */ -static int intelxvf_open ( struct net_device *netdev ) { - struct intel_nic *intel = netdev->priv; - uint32_t srrctl; - uint32_t dca_rxctrl; - int rc; - - /* Reset the function */ - intelxvf_reset ( intel ); - - /* Notify PF that reset is complete */ - if ( ( rc = intelvf_mbox_reset ( intel, NULL ) ) != 0 ) { - DBGC ( intel, "INTEL %p could not reset: %s\n", - intel, strerror ( rc ) ); - goto err_mbox_reset; - } - - /* Negotiate API version 1.1. If we do not negotiate at least - * this version, then the RX datapath will remain disabled if - * the PF has jumbo frames enabled. - * - * Ignore failures, since the host may not actually support - * v1.1. - */ - intelxvf_mbox_version ( intel, INTELXVF_MSG_VERSION_1_1 ); - - /* Set MAC address */ - if ( ( rc = intelvf_mbox_set_mac ( intel, netdev->ll_addr ) ) != 0 ) { - DBGC ( intel, "INTEL %p could not set MAC address: %s\n", - intel, strerror ( rc ) ); - goto err_mbox_set_mac; - } - - /* Set MTU */ - if ( ( rc = intelvf_mbox_set_mtu ( intel, netdev->max_pkt_len ) ) != 0){ - DBGC ( intel, "INTEL %p could not set MTU %zd: %s\n", - intel, netdev->max_pkt_len, strerror ( rc ) ); - goto err_mbox_set_mtu; - } - - /* Create transmit descriptor ring */ - if ( ( rc = intel_create_ring ( intel, &intel->tx ) ) != 0 ) - goto err_create_tx; - - /* Create receive descriptor ring */ - if ( ( rc = intel_create_ring ( intel, &intel->rx ) ) != 0 ) - goto err_create_rx; - - /* Allocate interrupt vectors */ - writel ( ( INTELXVF_IVAR_RX0_DEFAULT | INTELXVF_IVAR_RX0_VALID | - INTELXVF_IVAR_TX0_DEFAULT | INTELXVF_IVAR_TX0_VALID ), - intel->regs + INTELXVF_IVAR ); - writel ( ( INTELXVF_IVARM_MBOX_DEFAULT | INTELXVF_IVARM_MBOX_VALID ), - intel->regs + INTELXVF_IVARM ); - - /* Configure receive buffer sizes and set receive descriptor type */ - srrctl = readl ( intel->regs + INTELXVF_SRRCTL ); - srrctl &= ~( INTELXVF_SRRCTL_BSIZE_MASK | - INTELXVF_SRRCTL_DESCTYPE_MASK ); - srrctl |= ( INTELXVF_SRRCTL_BSIZE_DEFAULT | - INTELXVF_SRRCTL_DESCTYPE_DEFAULT ); - writel ( srrctl, intel->regs + INTELXVF_SRRCTL ); - - /* Clear "must-be-zero" bit for direct cache access (DCA). We - * leave DCA disabled anyway, but if we do not clear this bit - * then the received packets contain garbage data. - */ - dca_rxctrl = readl ( intel->regs + INTELXVF_DCA_RXCTRL ); - dca_rxctrl &= ~INTELXVF_DCA_RXCTRL_MUST_BE_ZERO; - writel ( dca_rxctrl, intel->regs + INTELXVF_DCA_RXCTRL ); - - /* Fill receive ring */ - intel_refill_rx ( intel ); - - /* Update link state */ - intelxvf_check_link ( netdev ); - - return 0; - - intel_destroy_ring ( intel, &intel->rx ); - err_create_rx: - intel_destroy_ring ( intel, &intel->tx ); - err_create_tx: - err_mbox_set_mtu: - err_mbox_set_mac: - err_mbox_reset: - intelxvf_reset ( intel ); - return rc; -} - -/** - * Close network device - * - * @v netdev Network device - */ -static void intelxvf_close ( struct net_device *netdev ) { - struct intel_nic *intel = netdev->priv; - - /* Destroy receive descriptor ring */ - intel_destroy_ring ( intel, &intel->rx ); - - /* Discard any unused receive buffers */ - intel_empty_rx ( intel ); - - /* Destroy transmit descriptor ring */ - intel_destroy_ring ( intel, &intel->tx ); - - /* Reset the function */ - intelxvf_reset ( intel ); -} - -/** - * Poll for completed and received packets - * - * @v netdev Network device - */ -static void intelxvf_poll ( struct net_device *netdev ) { - struct intel_nic *intel = netdev->priv; - uint32_t eicr; - int rc; - - /* Check for and acknowledge interrupts */ - eicr = readl ( intel->regs + INTELXVF_EICR ); - if ( ! eicr ) - return; - - /* Poll for TX completions, if applicable */ - if ( eicr & INTELXVF_EIRQ_TX0 ) - intel_poll_tx ( netdev ); - - /* Poll for RX completions, if applicable */ - if ( eicr & INTELXVF_EIRQ_RX0 ) - intel_poll_rx ( netdev ); - - /* Poll for mailbox messages, if applicable */ - if ( eicr & INTELXVF_EIRQ_MBOX ) { - - /* Poll mailbox */ - if ( ( rc = intelvf_mbox_poll ( intel ) ) != 0 ) { - DBGC ( intel, "INTEL %p mailbox poll failed!\n", - intel ); - netdev_rx_err ( netdev, NULL, rc ); - } - - /* Update link state */ - intelxvf_check_link ( netdev ); - } - - /* Refill RX ring */ - intel_refill_rx ( intel ); -} - -/** - * Enable or disable interrupts - * - * @v netdev Network device - * @v enable Interrupts should be enabled - */ -static void intelxvf_irq ( struct net_device *netdev, int enable ) { - struct intel_nic *intel = netdev->priv; - uint32_t mask; - - mask = ( INTELXVF_EIRQ_MBOX | INTELXVF_EIRQ_TX0 | INTELXVF_EIRQ_RX0 ); - if ( enable ) { - writel ( mask, intel->regs + INTELXVF_EIMS ); - } else { - writel ( mask, intel->regs + INTELXVF_EIMC ); - } -} - -/** Network device operations */ -static struct net_device_operations intelxvf_operations = { - .open = intelxvf_open, - .close = intelxvf_close, - .transmit = intel_transmit, - .poll = intelxvf_poll, - .irq = intelxvf_irq, -}; - -/****************************************************************************** - * - * PCI interface - * - ****************************************************************************** - */ - -/** - * Probe PCI device - * - * @v pci PCI device - * @ret rc Return status code - */ -static int intelxvf_probe ( struct pci_device *pci ) { - struct net_device *netdev; - struct intel_nic *intel; - int rc; - - /* Allocate and initialise net device */ - netdev = alloc_etherdev ( sizeof ( *intel ) ); - if ( ! netdev ) { - rc = -ENOMEM; - goto err_alloc; - } - netdev_init ( netdev, &intelxvf_operations ); - intel = netdev->priv; - pci_set_drvdata ( pci, netdev ); - netdev->dev = &pci->dev; - memset ( intel, 0, sizeof ( *intel ) ); - intel_init_mbox ( &intel->mbox, INTELXVF_MBCTRL, INTELXVF_MBMEM ); - intel_init_ring ( &intel->tx, INTEL_NUM_TX_DESC, INTELXVF_TD, - intel_describe_tx_adv ); - intel_init_ring ( &intel->rx, INTEL_NUM_RX_DESC, INTELXVF_RD, - intel_describe_rx ); - - /* Fix up PCI device */ - adjust_pci_device ( pci ); - - /* Map registers */ - intel->regs = ioremap ( pci->membase, INTELVF_BAR_SIZE ); - if ( ! intel->regs ) { - rc = -ENODEV; - goto err_ioremap; - } - - /* Reset the function */ - intelxvf_reset ( intel ); - - /* Send reset message and fetch MAC address */ - if ( ( rc = intelvf_mbox_reset ( intel, netdev->hw_addr ) ) != 0 ) { - DBGC ( intel, "INTEL %p could not reset and fetch MAC: %s\n", - intel, strerror ( rc ) ); - goto err_mbox_reset; - } - - /* Reset the function (since we will not respond to Control - * ("ping") mailbox messages until the network device is opened. - */ - intelxvf_reset ( intel ); - - /* Register network device */ - if ( ( rc = register_netdev ( netdev ) ) != 0 ) - goto err_register_netdev; - - /* Set initial link state */ - intelxvf_check_link ( netdev ); - - return 0; - - unregister_netdev ( netdev ); - err_register_netdev: - err_mbox_reset: - intelxvf_reset ( intel ); - iounmap ( intel->regs ); - err_ioremap: - netdev_nullify ( netdev ); - netdev_put ( netdev ); - err_alloc: - return rc; -} - -/** - * Remove PCI device - * - * @v pci PCI device - */ -static void intelxvf_remove ( struct pci_device *pci ) { - struct net_device *netdev = pci_get_drvdata ( pci ); - struct intel_nic *intel = netdev->priv; - - /* Unregister network device */ - unregister_netdev ( netdev ); - - /* Reset the NIC */ - intelxvf_reset ( intel ); - - /* Free network device */ - iounmap ( intel->regs ); - netdev_nullify ( netdev ); - netdev_put ( netdev ); -} - -/** PCI device IDs */ -static struct pci_device_id intelxvf_nics[] = { - PCI_ROM ( 0x8086, 0x10ed, "82599-vf", "82599 VF", 0 ), - PCI_ROM ( 0x8086, 0x1515, "x540-vf", "X540 VF", 0 ), - PCI_ROM ( 0x8086, 0x1565, "x550-vf", "X550 VF", 0 ), - PCI_ROM ( 0x8086, 0x15a8, "x552-vf", "X552 VF", 0 ), -}; - -/** PCI driver */ -struct pci_driver intelxvf_driver __pci_driver = { - .ids = intelxvf_nics, - .id_count = ( sizeof ( intelxvf_nics ) / sizeof ( intelxvf_nics[0] ) ), - .probe = intelxvf_probe, - .remove = intelxvf_remove, -}; |