summaryrefslogtreecommitdiffstats
path: root/qemu/roms/ipxe/src/drivers/net/intelx.c
diff options
context:
space:
mode:
authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/ipxe/src/drivers/net/intelx.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/intelx.c')
-rw-r--r--qemu/roms/ipxe/src/drivers/net/intelx.c484
1 files changed, 0 insertions, 484 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/intelx.c b/qemu/roms/ipxe/src/drivers/net/intelx.c
deleted file mode 100644
index 982b74f12..000000000
--- a/qemu/roms/ipxe/src/drivers/net/intelx.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/*
- * Copyright (C) 2013 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 <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 "intelx.h"
-
-/** @file
- *
- * Intel 10 Gigabit Ethernet network card driver
- *
- */
-
-/******************************************************************************
- *
- * MAC address
- *
- ******************************************************************************
- */
-
-/**
- * Try to fetch initial MAC address
- *
- * @v intel Intel device
- * @v ral0 RAL0 register address
- * @v hw_addr Hardware address to fill in
- * @ret rc Return status code
- */
-static int intelx_try_fetch_mac ( struct intel_nic *intel, unsigned int ral0,
- uint8_t *hw_addr ) {
- union intel_receive_address mac;
-
- /* Read current address from RAL0/RAH0 */
- mac.reg.low = cpu_to_le32 ( readl ( intel->regs + ral0 ) );
- mac.reg.high = cpu_to_le32 ( readl ( intel->regs + ral0 +
- ( INTELX_RAH0 - INTELX_RAL0 ) ) );
-
- /* Use current address if valid */
- if ( is_valid_ether_addr ( mac.raw ) ) {
- DBGC ( intel, "INTEL %p has autoloaded MAC address %s at "
- "%#05x\n", intel, eth_ntoa ( mac.raw ), ral0 );
- memcpy ( hw_addr, mac.raw, ETH_ALEN );
- return 0;
- }
-
- return -ENOENT;
-}
-
-/**
- * Fetch initial MAC address
- *
- * @v intel Intel device
- * @v hw_addr Hardware address to fill in
- * @ret rc Return status code
- */
-static int intelx_fetch_mac ( struct intel_nic *intel, uint8_t *hw_addr ) {
- int rc;
-
- /* Try to fetch address from INTELX_RAL0 */
- if ( ( rc = intelx_try_fetch_mac ( intel, INTELX_RAL0,
- hw_addr ) ) == 0 ) {
- return 0;
- }
-
- /* Try to fetch address from INTELX_RAL0_ALT */
- if ( ( rc = intelx_try_fetch_mac ( intel, INTELX_RAL0_ALT,
- hw_addr ) ) == 0 ) {
- return 0;
- }
-
- DBGC ( intel, "INTEL %p has no MAC address to use\n", intel );
- return -ENOENT;
-}
-
-/******************************************************************************
- *
- * Device reset
- *
- ******************************************************************************
- */
-
-/**
- * Reset hardware
- *
- * @v intel Intel device
- * @ret rc Return status code
- */
-static int intelx_reset ( struct intel_nic *intel ) {
- uint32_t ctrl;
-
- /* Perform a global software reset */
- ctrl = readl ( intel->regs + INTELX_CTRL );
- writel ( ( ctrl | INTELX_CTRL_RST | INTELX_CTRL_LRST ),
- intel->regs + INTELX_CTRL );
- mdelay ( INTELX_RESET_DELAY_MS );
-
- DBGC ( intel, "INTEL %p reset (ctrl %08x)\n", intel, ctrl );
- return 0;
-}
-
-/******************************************************************************
- *
- * Link state
- *
- ******************************************************************************
- */
-
-/**
- * Check link state
- *
- * @v netdev Network device
- */
-static void intelx_check_link ( struct net_device *netdev ) {
- struct intel_nic *intel = netdev->priv;
- uint32_t links;
-
- /* Read link status */
- links = readl ( intel->regs + INTELX_LINKS );
- DBGC ( intel, "INTEL %p link status is %08x\n", intel, links );
-
- /* Update network device */
- if ( links & INTELX_LINKS_UP ) {
- netdev_link_up ( netdev );
- } else {
- netdev_link_down ( netdev );
- }
-}
-
-/******************************************************************************
- *
- * Network device interface
- *
- ******************************************************************************
- */
-
-/**
- * Open network device
- *
- * @v netdev Network device
- * @ret rc Return status code
- */
-static int intelx_open ( struct net_device *netdev ) {
- struct intel_nic *intel = netdev->priv;
- union intel_receive_address mac;
- uint32_t ral0;
- uint32_t rah0;
- uint32_t dmatxctl;
- uint32_t fctrl;
- uint32_t srrctl;
- uint32_t hlreg0;
- uint32_t maxfrs;
- uint32_t rdrxctl;
- uint32_t rxctrl;
- uint32_t dca_rxctrl;
- int rc;
-
- /* 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;
-
- /* Program MAC address */
- memset ( &mac, 0, sizeof ( mac ) );
- memcpy ( mac.raw, netdev->ll_addr, sizeof ( mac.raw ) );
- ral0 = le32_to_cpu ( mac.reg.low );
- rah0 = ( le32_to_cpu ( mac.reg.high ) | INTELX_RAH0_AV );
- writel ( ral0, intel->regs + INTELX_RAL0 );
- writel ( rah0, intel->regs + INTELX_RAH0 );
- writel ( ral0, intel->regs + INTELX_RAL0_ALT );
- writel ( rah0, intel->regs + INTELX_RAH0_ALT );
-
- /* Allocate interrupt vectors */
- writel ( ( INTELX_IVAR_RX0_DEFAULT | INTELX_IVAR_RX0_VALID |
- INTELX_IVAR_TX0_DEFAULT | INTELX_IVAR_TX0_VALID ),
- intel->regs + INTELX_IVAR );
-
- /* Enable transmitter */
- dmatxctl = readl ( intel->regs + INTELX_DMATXCTL );
- dmatxctl |= INTELX_DMATXCTL_TE;
- writel ( dmatxctl, intel->regs + INTELX_DMATXCTL );
-
- /* Configure receive filter */
- fctrl = readl ( intel->regs + INTELX_FCTRL );
- fctrl |= ( INTELX_FCTRL_BAM | INTELX_FCTRL_UPE | INTELX_FCTRL_MPE );
- writel ( fctrl, intel->regs + INTELX_FCTRL );
-
- /* Configure receive buffer sizes */
- srrctl = readl ( intel->regs + INTELX_SRRCTL );
- srrctl &= ~INTELX_SRRCTL_BSIZE_MASK;
- srrctl |= INTELX_SRRCTL_BSIZE_DEFAULT;
- writel ( srrctl, intel->regs + INTELX_SRRCTL );
-
- /* Configure jumbo frames. Required to allow the extra 4-byte
- * headroom for VLANs, since we don't use the hardware's
- * native VLAN offload.
- */
- hlreg0 = readl ( intel->regs + INTELX_HLREG0 );
- hlreg0 |= INTELX_HLREG0_JUMBOEN;
- writel ( hlreg0, intel->regs + INTELX_HLREG0 );
-
- /* Configure frame size */
- maxfrs = readl ( intel->regs + INTELX_MAXFRS );
- maxfrs &= ~INTELX_MAXFRS_MFS_MASK;
- maxfrs |= INTELX_MAXFRS_MFS_DEFAULT;
- writel ( maxfrs, intel->regs + INTELX_MAXFRS );
-
- /* Configure receive DMA */
- rdrxctl = readl ( intel->regs + INTELX_RDRXCTL );
- rdrxctl |= INTELX_RDRXCTL_SECRC;
- writel ( rdrxctl, intel->regs + INTELX_RDRXCTL );
-
- /* 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 + INTELX_DCA_RXCTRL );
- dca_rxctrl &= ~INTELX_DCA_RXCTRL_MUST_BE_ZERO;
- writel ( dca_rxctrl, intel->regs + INTELX_DCA_RXCTRL );
-
- /* Enable receiver */
- rxctrl = readl ( intel->regs + INTELX_RXCTRL );
- rxctrl |= INTELX_RXCTRL_RXEN;
- writel ( rxctrl, intel->regs + INTELX_RXCTRL );
-
- /* Fill receive ring */
- intel_refill_rx ( intel );
-
- /* Update link state */
- intelx_check_link ( netdev );
-
- return 0;
-
- intel_destroy_ring ( intel, &intel->rx );
- err_create_rx:
- intel_destroy_ring ( intel, &intel->tx );
- err_create_tx:
- return rc;
-}
-
-/**
- * Close network device
- *
- * @v netdev Network device
- */
-static void intelx_close ( struct net_device *netdev ) {
- struct intel_nic *intel = netdev->priv;
- uint32_t rxctrl;
- uint32_t dmatxctl;
-
- /* Disable receiver */
- rxctrl = readl ( intel->regs + INTELX_RXCTRL );
- rxctrl &= ~INTELX_RXCTRL_RXEN;
- writel ( rxctrl, intel->regs + INTELX_RXCTRL );
-
- /* Disable transmitter */
- dmatxctl = readl ( intel->regs + INTELX_DMATXCTL );
- dmatxctl &= ~INTELX_DMATXCTL_TE;
- writel ( dmatxctl, intel->regs + INTELX_DMATXCTL );
-
- /* 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 NIC, to flush the transmit and receive FIFOs */
- intelx_reset ( intel );
-}
-
-/**
- * Poll for completed and received packets
- *
- * @v netdev Network device
- */
-static void intelx_poll ( struct net_device *netdev ) {
- struct intel_nic *intel = netdev->priv;
- uint32_t eicr;
-
- /* Check for and acknowledge interrupts */
- eicr = readl ( intel->regs + INTELX_EICR );
- if ( ! eicr )
- return;
-
- /* Poll for TX completions, if applicable */
- if ( eicr & INTELX_EIRQ_TX0 )
- intel_poll_tx ( netdev );
-
- /* Poll for RX completions, if applicable */
- if ( eicr & ( INTELX_EIRQ_RX0 | INTELX_EIRQ_RXO ) )
- intel_poll_rx ( netdev );
-
- /* Report receive overruns */
- if ( eicr & INTELX_EIRQ_RXO )
- netdev_rx_err ( netdev, NULL, -ENOBUFS );
-
- /* Check link state, if applicable */
- if ( eicr & INTELX_EIRQ_LSC )
- intelx_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 intelx_irq ( struct net_device *netdev, int enable ) {
- struct intel_nic *intel = netdev->priv;
- uint32_t mask;
-
- mask = ( INTELX_EIRQ_LSC | INTELX_EIRQ_RXO | INTELX_EIRQ_TX0 |
- INTELX_EIRQ_RX0 );
- if ( enable ) {
- writel ( mask, intel->regs + INTELX_EIMS );
- } else {
- writel ( mask, intel->regs + INTELX_EIMC );
- }
-}
-
-/** Network device operations */
-static struct net_device_operations intelx_operations = {
- .open = intelx_open,
- .close = intelx_close,
- .transmit = intel_transmit,
- .poll = intelx_poll,
- .irq = intelx_irq,
-};
-
-/******************************************************************************
- *
- * PCI interface
- *
- ******************************************************************************
- */
-
-/**
- * Probe PCI device
- *
- * @v pci PCI device
- * @ret rc Return status code
- */
-static int intelx_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, &intelx_operations );
- intel = netdev->priv;
- pci_set_drvdata ( pci, netdev );
- netdev->dev = &pci->dev;
- memset ( intel, 0, sizeof ( *intel ) );
- intel->port = PCI_FUNC ( pci->busdevfn );
- intel_init_ring ( &intel->tx, INTEL_NUM_TX_DESC, INTELX_TD,
- intel_describe_tx );
- intel_init_ring ( &intel->rx, INTEL_NUM_RX_DESC, INTELX_RD,
- intel_describe_rx );
-
- /* Fix up PCI device */
- adjust_pci_device ( pci );
-
- /* Map registers */
- intel->regs = ioremap ( pci->membase, INTEL_BAR_SIZE );
- if ( ! intel->regs ) {
- rc = -ENODEV;
- goto err_ioremap;
- }
-
- /* Reset the NIC */
- if ( ( rc = intelx_reset ( intel ) ) != 0 )
- goto err_reset;
-
- /* Fetch MAC address */
- if ( ( rc = intelx_fetch_mac ( intel, netdev->hw_addr ) ) != 0 )
- goto err_fetch_mac;
-
- /* Register network device */
- if ( ( rc = register_netdev ( netdev ) ) != 0 )
- goto err_register_netdev;
-
- /* Set initial link state */
- intelx_check_link ( netdev );
-
- return 0;
-
- unregister_netdev ( netdev );
- err_register_netdev:
- err_fetch_mac:
- intelx_reset ( intel );
- err_reset:
- iounmap ( intel->regs );
- err_ioremap:
- netdev_nullify ( netdev );
- netdev_put ( netdev );
- err_alloc:
- return rc;
-}
-
-/**
- * Remove PCI device
- *
- * @v pci PCI device
- */
-static void intelx_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 */
- intelx_reset ( intel );
-
- /* Free network device */
- iounmap ( intel->regs );
- netdev_nullify ( netdev );
- netdev_put ( netdev );
-}
-
-/** PCI device IDs */
-static struct pci_device_id intelx_nics[] = {
- PCI_ROM ( 0x8086, 0x10f7, "82599-kx4", "82599 (KX/KX4)", 0 ),
- PCI_ROM ( 0x8086, 0x10f8, "82599-combo-backplane", "82599 (combined backplane; KR/KX4/KX)", 0 ),
- PCI_ROM ( 0x8086, 0x10f9, "82599-cx4", "82599 (CX4)", 0 ),
- PCI_ROM ( 0x8086, 0x10fb, "82599-sfp", "82599 (SFI/SFP+)", 0 ),
- PCI_ROM ( 0x8086, 0x10fc, "82599-xaui", "82599 (XAUI/BX4)", 0 ),
- PCI_ROM ( 0x8086, 0x1528, "x540t", "X540-AT2/X540-BT2", 0 ),
- PCI_ROM ( 0x8086, 0x154d, "82599-sfp-sf2", "82599 (SFI/SFP+)", 0 ),
- PCI_ROM ( 0x8086, 0x1557, "82599en-sfp", "82599 (Single Port SFI Only)", 0 ),
- PCI_ROM ( 0x8086, 0x1560, "x540t1", "X540-AT2/X540-BT2 (with single port NVM)", 0 ),
-};
-
-/** PCI driver */
-struct pci_driver intelx_driver __pci_driver = {
- .ids = intelx_nics,
- .id_count = ( sizeof ( intelx_nics ) / sizeof ( intelx_nics[0] ) ),
- .probe = intelx_probe,
- .remove = intelx_remove,
-};