diff options
Diffstat (limited to 'qemu/roms/ipxe/src/drivers/net/igbvf/igbvf_main.c')
| -rw-r--r-- | qemu/roms/ipxe/src/drivers/net/igbvf/igbvf_main.c | 953 |
1 files changed, 0 insertions, 953 deletions
diff --git a/qemu/roms/ipxe/src/drivers/net/igbvf/igbvf_main.c b/qemu/roms/ipxe/src/drivers/net/igbvf/igbvf_main.c deleted file mode 100644 index fc7021c38..000000000 --- a/qemu/roms/ipxe/src/drivers/net/igbvf/igbvf_main.c +++ /dev/null @@ -1,953 +0,0 @@ -/******************************************************************************* - - Intel(R) 82576 Virtual Function Linux driver - Copyright(c) 2009 Intel Corporation. - - Copyright(c) 2010 Eric Keller <ekeller@princeton.edu> - Copyright(c) 2010 Red Hat Inc. - Alex Williamson <alex.williamson@redhat.com> - - This program is free software; you can redistribute it and/or modify it - under the terms and conditions of the GNU General Public License, - version 2, as published by the Free Software Foundation. - - This program is distributed in the hope 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 St - Fifth Floor, Boston, MA 02110-1301 USA. - - The full GNU General Public License is included in this distribution in - the file called "COPYING". - - Contact Information: - e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> - Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - -*******************************************************************************/ - -FILE_LICENCE ( GPL2_ONLY ); - -#include "igbvf.h" - -/** - * igbvf_setup_tx_resources - allocate Tx resources (Descriptors) - * - * @v adapter e1000 private structure - * - * @ret rc Returns 0 on success, negative on failure - **/ -int igbvf_setup_tx_resources ( struct igbvf_adapter *adapter ) -{ - DBG ( "igbvf_setup_tx_resources\n" ); - - /* Allocate transmit descriptor ring memory. - It must not cross a 64K boundary because of hardware errata #23 - so we use malloc_dma() requesting a 128 byte block that is - 128 byte aligned. This should guarantee that the memory - allocated will not cross a 64K boundary, because 128 is an - even multiple of 65536 ( 65536 / 128 == 512 ), so all possible - allocations of 128 bytes on a 128 byte boundary will not - cross 64K bytes. - */ - - adapter->tx_base = - malloc_dma ( adapter->tx_ring_size, adapter->tx_ring_size ); - - if ( ! adapter->tx_base ) { - return -ENOMEM; - } - - memset ( adapter->tx_base, 0, adapter->tx_ring_size ); - - DBG ( "adapter->tx_base = %#08lx\n", virt_to_bus ( adapter->tx_base ) ); - - return 0; -} - -/** - * igbvf_free_tx_resources - Free Tx Resources per Queue - * @adapter: board private structure - * - * Free all transmit software resources - **/ -void igbvf_free_tx_resources ( struct igbvf_adapter *adapter ) -{ - DBG ( "igbvf_free_tx_resources\n" ); - - free_dma ( adapter->tx_base, adapter->tx_ring_size ); -} - -/** - * igbvf_free_rx_resources - Free Rx Resources - * @adapter: board private structure - * - * Free all receive software resources - **/ -void igbvf_free_rx_resources ( struct igbvf_adapter *adapter ) -{ - int i; - - DBG ( "igbvf_free_rx_resources\n" ); - - free_dma ( adapter->rx_base, adapter->rx_ring_size ); - - for ( i = 0; i < NUM_RX_DESC; i++ ) { - free_iob ( adapter->rx_iobuf[i] ); - } -} - -/** - * igbvf_refill_rx_ring - allocate Rx io_buffers - * - * @v adapter e1000 private structure - * - * @ret rc Returns 0 on success, negative on failure - **/ -static int igbvf_refill_rx_ring ( struct igbvf_adapter *adapter ) -{ - int i, rx_curr; - int rc = 0; - union e1000_adv_rx_desc *rx_curr_desc; - struct e1000_hw *hw = &adapter->hw; - struct io_buffer *iob; - - DBGP ("igbvf_refill_rx_ring\n"); - - for ( i = 0; i < NUM_RX_DESC; i++ ) { - rx_curr = ( ( adapter->rx_curr + i ) % NUM_RX_DESC ); - rx_curr_desc = adapter->rx_base + rx_curr; - - if ( rx_curr_desc->wb.upper.status_error & E1000_RXD_STAT_DD ) - continue; - - if ( adapter->rx_iobuf[rx_curr] != NULL ) - continue; - - DBG2 ( "Refilling rx desc %d\n", rx_curr ); - - iob = alloc_iob ( MAXIMUM_ETHERNET_VLAN_SIZE ); - adapter->rx_iobuf[rx_curr] = iob; - - rx_curr_desc->wb.upper.status_error = 0; - - if ( ! iob ) { - DBG ( "alloc_iob failed\n" ); - rc = -ENOMEM; - break; - } else { - rx_curr_desc->read.pkt_addr = virt_to_bus ( iob->data ); - rx_curr_desc->read.hdr_addr = 0; - ew32 ( RDT(0), rx_curr ); - } - } - return rc; -} - -/** - * igbvf_irq_disable - Mask off interrupt generation on the NIC - * @adapter: board private structure - **/ -static void igbvf_irq_disable ( struct igbvf_adapter *adapter ) -{ - struct e1000_hw *hw = &adapter->hw; - - ew32 ( EIMC, ~0 ); -} - -/** - * igbvf_irq_enable - Enable default interrupt generation settings - * @adapter: board private structure - **/ -static void igbvf_irq_enable ( struct igbvf_adapter *adapter ) -{ - struct e1000_hw *hw = &adapter->hw; - - ew32 ( EIAC, IMS_ENABLE_MASK ); - ew32 ( EIAM, IMS_ENABLE_MASK ); - ew32 ( EIMS, IMS_ENABLE_MASK ); -} - -/** - * igbvf_irq - enable or Disable interrupts - * - * @v adapter e1000 adapter - * @v action requested interrupt action - **/ -static void igbvf_irq ( struct net_device *netdev, int enable ) -{ - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - - DBG ( "igbvf_irq\n" ); - - if ( enable ) { - igbvf_irq_enable ( adapter ); - } else { - igbvf_irq_disable ( adapter ); - } -} - -/** - * igbvf_process_tx_packets - process transmitted packets - * - * @v netdev network interface device structure - **/ -static void igbvf_process_tx_packets ( struct net_device *netdev ) -{ - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - uint32_t i; - uint32_t tx_status; - union e1000_adv_tx_desc *tx_curr_desc; - - /* Check status of transmitted packets - */ - DBGP ( "process_tx_packets: tx_head = %d, tx_tail = %d\n", adapter->tx_head, - adapter->tx_tail ); - - while ( ( i = adapter->tx_head ) != adapter->tx_tail ) { - - tx_curr_desc = ( void * ) ( adapter->tx_base ) + - ( i * sizeof ( *adapter->tx_base ) ); - - tx_status = tx_curr_desc->wb.status; - DBG ( " tx_curr_desc = %#08lx\n", virt_to_bus ( tx_curr_desc ) ); - DBG ( " tx_status = %#08x\n", tx_status ); - - /* if the packet at tx_head is not owned by hardware it is for us */ - if ( ! ( tx_status & E1000_TXD_STAT_DD ) ) - break; - - DBG ( "Sent packet. tx_head: %d tx_tail: %d tx_status: %#08x\n", - adapter->tx_head, adapter->tx_tail, tx_status ); - - netdev_tx_complete ( netdev, adapter->tx_iobuf[i] ); - DBG ( "Success transmitting packet, tx_status: %#08x\n", - tx_status ); - - /* Decrement count of used descriptors, clear this descriptor - */ - adapter->tx_fill_ctr--; - memset ( tx_curr_desc, 0, sizeof ( *tx_curr_desc ) ); - - adapter->tx_head = ( adapter->tx_head + 1 ) % NUM_TX_DESC; - } -} - -/** - * igbvf_process_rx_packets - process received packets - * - * @v netdev network interface device structure - **/ -static void igbvf_process_rx_packets ( struct net_device *netdev ) -{ - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - struct e1000_hw *hw = &adapter->hw; - uint32_t i; - uint32_t rx_status; - uint32_t rx_len; - uint32_t rx_err; - union e1000_adv_rx_desc *rx_curr_desc; - - DBGP ( "igbvf_process_rx_packets\n" ); - - /* Process received packets - */ - while ( 1 ) { - i = adapter->rx_curr; - - rx_curr_desc = ( void * ) ( adapter->rx_base ) + - ( i * sizeof ( *adapter->rx_base ) ); - rx_status = rx_curr_desc->wb.upper.status_error; - - DBG2 ( "Before DD Check RX_status: %#08x, rx_curr: %d\n", - rx_status, i ); - - if ( ! ( rx_status & E1000_RXD_STAT_DD ) ) - break; - - if ( adapter->rx_iobuf[i] == NULL ) - break; - - DBG ( "E1000_RCTL = %#08x\n", er32 (RCTL) ); - - rx_len = rx_curr_desc->wb.upper.length; - - DBG ( "Received packet, rx_curr: %d rx_status: %#08x rx_len: %d\n", - i, rx_status, rx_len ); - - rx_err = rx_status; - - iob_put ( adapter->rx_iobuf[i], rx_len ); - - if ( rx_err & E1000_RXDEXT_ERR_FRAME_ERR_MASK ) { - - netdev_rx_err ( netdev, adapter->rx_iobuf[i], -EINVAL ); - DBG ( "igbvf_process_rx_packets: Corrupted packet received!" - " rx_err: %#08x\n", rx_err ); - } else { - /* Add this packet to the receive queue. */ - netdev_rx ( netdev, adapter->rx_iobuf[i] ); - } - adapter->rx_iobuf[i] = NULL; - - memset ( rx_curr_desc, 0, sizeof ( *rx_curr_desc ) ); - - adapter->rx_curr = ( adapter->rx_curr + 1 ) % NUM_RX_DESC; - } -} - -/** - * igbvf_poll - Poll for received packets - * - * @v netdev Network device - */ -static void igbvf_poll ( struct net_device *netdev ) -{ - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - uint32_t rx_status; - union e1000_adv_rx_desc *rx_curr_desc; - - DBGP ( "igbvf_poll\n" ); - - rx_curr_desc = ( void * ) ( adapter->rx_base ) + - ( adapter->rx_curr * sizeof ( *adapter->rx_base ) ); - rx_status = rx_curr_desc->wb.upper.status_error; - - if ( ! ( rx_status & E1000_RXD_STAT_DD ) ) - return; - - igbvf_process_tx_packets ( netdev ); - - igbvf_process_rx_packets ( netdev ); - - igbvf_refill_rx_ring ( adapter ); -} - -/** - * igbvf_config_collision_dist_generic - Configure collision distance - * @hw: pointer to the HW structure - * - * Configures the collision distance to the default value and is used - * during link setup. Currently no func pointer exists and all - * implementations are handled in the generic version of this function. - **/ -void igbvf_config_collision_dist ( struct e1000_hw *hw ) -{ - u32 tctl; - - DBG ("igbvf_config_collision_dist"); - - tctl = er32 (TCTL); - - tctl &= ~E1000_TCTL_COLD; - tctl |= E1000_COLLISION_DISTANCE << E1000_COLD_SHIFT; - - ew32 (TCTL, tctl); - e1e_flush(); -} - -/** - * igbvf_configure_tx - Configure Transmit Unit after Reset - * @adapter: board private structure - * - * Configure the Tx unit of the MAC after a reset. - **/ -static void igbvf_configure_tx ( struct igbvf_adapter *adapter ) -{ - struct e1000_hw *hw = &adapter->hw; - u32 tctl, txdctl; - - DBG ( "igbvf_configure_tx\n" ); - - /* disable transmits while setting up the descriptors */ - tctl = er32 ( TCTL ); - ew32 ( TCTL, tctl & ~E1000_TCTL_EN ); - e1e_flush(); - mdelay (10); - - ew32 ( TDBAH(0), 0 ); - ew32 ( TDBAL(0), virt_to_bus ( adapter->tx_base ) ); - ew32 ( TDLEN(0), adapter->tx_ring_size ); - - DBG ( "E1000_TDBAL(0): %#08x\n", er32 ( TDBAL(0) ) ); - DBG ( "E1000_TDLEN(0): %d\n", er32 ( TDLEN(0) ) ); - - /* Setup the HW Tx Head and Tail descriptor pointers */ - ew32 ( TDH(0), 0 ); - ew32 ( TDT(0), 0 ); - - adapter->tx_head = 0; - adapter->tx_tail = 0; - adapter->tx_fill_ctr = 0; - - txdctl = er32(TXDCTL(0)); - txdctl |= E1000_TXDCTL_QUEUE_ENABLE; - ew32 ( TXDCTL(0), txdctl ); - - txdctl = er32 ( TXDCTL(0) ); - txdctl |= E1000_TXDCTL_QUEUE_ENABLE; - ew32 ( TXDCTL(0), txdctl ); - - /* Setup Transmit Descriptor Settings for eop descriptor */ - adapter->txd_cmd = E1000_ADVTXD_DCMD_EOP | E1000_ADVTXD_DCMD_IFCS; - - /* Advanced descriptor */ - adapter->txd_cmd |= E1000_ADVTXD_DCMD_DEXT; - - /* (not part of cmd, but in same 32 bit word...) */ - adapter->txd_cmd |= E1000_ADVTXD_DTYP_DATA; - - /* enable Report Status bit */ - adapter->txd_cmd |= E1000_ADVTXD_DCMD_RS; - - /* Program the Transmit Control Register */ - tctl &= ~E1000_TCTL_CT; - tctl |= E1000_TCTL_PSP | E1000_TCTL_RTLC | - (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT); - - igbvf_config_collision_dist ( hw ); - - /* Enable transmits */ - tctl |= E1000_TCTL_EN; - ew32(TCTL, tctl); - e1e_flush(); -} - -/* igbvf_reset - bring the hardware into a known good state - * - * This function boots the hardware and enables some settings that - * require a configuration cycle of the hardware - those cannot be - * set/changed during runtime. After reset the device needs to be - * properly configured for Rx, Tx etc. - */ -void igbvf_reset ( struct igbvf_adapter *adapter ) -{ - struct e1000_mac_info *mac = &adapter->hw.mac; - struct net_device *netdev = adapter->netdev; - struct e1000_hw *hw = &adapter->hw; - - /* Allow time for pending master requests to run */ - if ( mac->ops.reset_hw(hw) ) - DBG ("PF still resetting\n"); - - mac->ops.init_hw ( hw ); - - if ( is_valid_ether_addr(adapter->hw.mac.addr) ) { - memcpy ( netdev->hw_addr, adapter->hw.mac.addr, ETH_ALEN ); - } -} - -extern void igbvf_init_function_pointers_vf(struct e1000_hw *hw); - -/** - * igbvf_sw_init - Initialize general software structures (struct igbvf_adapter) - * @adapter: board private structure to initialize - * - * igbvf_sw_init initializes the Adapter private data structure. - * Fields are initialized based on PCI device information and - * OS network device settings (MTU size). - **/ -static int __devinit igbvf_sw_init ( struct igbvf_adapter *adapter ) -{ - struct e1000_hw *hw = &adapter->hw; - struct pci_device *pdev = adapter->pdev; - int rc; - - /* PCI config space info */ - - hw->vendor_id = pdev->vendor; - hw->device_id = pdev->device; - - pci_read_config_byte ( pdev, PCI_REVISION, &hw->revision_id ); - - pci_read_config_word ( pdev, PCI_COMMAND, &hw->bus.pci_cmd_word ); - - adapter->max_frame_size = MAXIMUM_ETHERNET_VLAN_SIZE + ETH_HLEN + ETH_FCS_LEN; - adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; - - /* Set various function pointers */ - igbvf_init_function_pointers_vf ( &adapter->hw ); - - rc = adapter->hw.mac.ops.init_params ( &adapter->hw ); - if (rc) { - DBG ("hw.mac.ops.init_params(&adapter->hw) Failure\n"); - return rc; - } - - rc = adapter->hw.mbx.ops.init_params ( &adapter->hw ); - if (rc) { - DBG ("hw.mbx.ops.init_params(&adapter->hw) Failure\n"); - return rc; - } - - /* Explicitly disable IRQ since the NIC can be in any state. */ - igbvf_irq_disable ( adapter ); - - return 0; -} - -/** - * igbvf_setup_srrctl - configure the receive control registers - * @adapter: Board private structure - **/ -static void igbvf_setup_srrctl ( struct igbvf_adapter *adapter ) -{ - struct e1000_hw *hw = &adapter->hw; - u32 srrctl = 0; - - DBG ( "igbvf_setup_srrctl\n" ); - - srrctl &= ~(E1000_SRRCTL_DESCTYPE_MASK | - E1000_SRRCTL_BSIZEHDR_MASK | - E1000_SRRCTL_BSIZEPKT_MASK); - - /* Enable queue drop to avoid head of line blocking */ - srrctl |= E1000_SRRCTL_DROP_EN; - - /* Setup buffer sizes */ - srrctl |= 2048 >> E1000_SRRCTL_BSIZEPKT_SHIFT; - srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF; - - ew32 ( SRRCTL(0), srrctl ); -} - -/** - * igbvf_configure_rx - Configure 8254x Receive Unit after Reset - * @adapter: board private structure - * - * Configure the Rx unit of the MAC after a reset. - **/ -static void igbvf_configure_rx ( struct igbvf_adapter *adapter ) -{ - struct e1000_hw *hw = &adapter->hw; - u32 rxdctl; - - DBG ( "igbvf_configure_rx\n" ); - - /* disable receives */ - rxdctl = er32 ( RXDCTL(0) ); - ew32 ( RXDCTL(0), rxdctl & ~E1000_RXDCTL_QUEUE_ENABLE ); - msleep ( 10 ); - - /* - * Setup the HW Rx Head and Tail Descriptor Pointers and - * the Base and Length of the Rx Descriptor Ring - */ - ew32 ( RDBAL(0), virt_to_bus (adapter->rx_base) ); - ew32 ( RDBAH(0), 0 ); - ew32 ( RDLEN(0), adapter->rx_ring_size ); - adapter->rx_curr = 0; - ew32 ( RDH(0), 0 ); - ew32 ( RDT(0), 0 ); - - rxdctl |= E1000_RXDCTL_QUEUE_ENABLE; - rxdctl &= 0xFFF00000; - rxdctl |= IGBVF_RX_PTHRESH; - rxdctl |= IGBVF_RX_HTHRESH << 8; - rxdctl |= IGBVF_RX_WTHRESH << 16; - - igbvf_rlpml_set_vf ( hw, adapter->max_frame_size ); - - /* enable receives */ - ew32 ( RXDCTL(0), rxdctl ); - ew32 ( RDT(0), NUM_RX_DESC ); -} - -/** - * igbvf_setup_rx_resources - allocate Rx resources (Descriptors) - * - * @v adapter e1000 private structure - **/ -int igbvf_setup_rx_resources ( struct igbvf_adapter *adapter ) -{ - int i; - union e1000_adv_rx_desc *rx_curr_desc; - struct io_buffer *iob; - - DBG ( "igbvf_setup_rx_resources\n" ); - - /* Allocate receive descriptor ring memory. - It must not cross a 64K boundary because of hardware errata - */ - - adapter->rx_base = - malloc_dma ( adapter->rx_ring_size, adapter->rx_ring_size ); - - if ( ! adapter->rx_base ) { - return -ENOMEM; - } - memset ( adapter->rx_base, 0, adapter->rx_ring_size ); - - for ( i = 0; i < NUM_RX_DESC; i++ ) { - rx_curr_desc = adapter->rx_base + i; - iob = alloc_iob ( MAXIMUM_ETHERNET_VLAN_SIZE ); - adapter->rx_iobuf[i] = iob; - rx_curr_desc->wb.upper.status_error = 0; - if ( ! iob ) { - DBG ( "alloc_iob failed\n" ); - return -ENOMEM; - } else { - rx_curr_desc->read.pkt_addr = virt_to_bus ( iob->data ); - rx_curr_desc->read.hdr_addr = 0; - } - } - - return 0; -} - -/** - * igbvf_open - Called when a network interface is made active - * @netdev: network interface device structure - * - * Returns 0 on success, negative value on failure - * - * The open entry point is called when a network interface is made - * active by the system (IFF_UP). At this point all resources needed - * for transmit and receive operations are allocated, the interrupt - * handler is registered with the OS, the watchdog timer is started, - * and the stack is notified that the interface is ready. - **/ -static int igbvf_open ( struct net_device *netdev ) -{ - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - int err; - - DBG ("igbvf_open\n"); - - /* Update MAC address */ - memcpy ( adapter->hw.mac.addr, netdev->ll_addr, ETH_ALEN ); - igbvf_reset( adapter ); - - /* allocate transmit descriptors */ - err = igbvf_setup_tx_resources ( adapter ); - if (err) { - DBG ( "Error setting up TX resources!\n" ); - goto err_setup_tx; - } - - igbvf_configure_tx ( adapter ); - - igbvf_setup_srrctl( adapter ); - - err = igbvf_setup_rx_resources( adapter ); - if (err) { - DBG ( "Error setting up RX resources!\n" ); - goto err_setup_rx; - } - - igbvf_configure_rx ( adapter ); - - return 0; - -err_setup_rx: - DBG ( "err_setup_rx\n" ); - igbvf_free_tx_resources ( adapter ); - return err; - -err_setup_tx: - DBG ( "err_setup_tx\n" ); - igbvf_reset ( adapter ); - - return err; -} - -/** - * igbvf_close - Disables a network interface - * @netdev: network interface device structure - * - * Returns 0, this is not allowed to fail - * - * The close entry point is called when an interface is de-activated - * by the OS. The hardware is still under the drivers control, but - * needs to be disabled. A global MAC reset is issued to stop the - * hardware, and all transmit and receive resources are freed. - **/ -static void igbvf_close ( struct net_device *netdev ) -{ - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - struct e1000_hw *hw = &adapter->hw; - uint32_t rxdctl; - - DBG ( "igbvf_close\n" ); - - /* Disable and acknowledge interrupts */ - igbvf_irq_disable ( adapter ); - er32(EICR); - - /* disable receives */ - rxdctl = er32 ( RXDCTL(0) ); - ew32 ( RXDCTL(0), rxdctl & ~E1000_RXDCTL_QUEUE_ENABLE ); - mdelay ( 10 ); - - igbvf_reset ( adapter ); - - igbvf_free_tx_resources( adapter ); - igbvf_free_rx_resources( adapter ); -} - -/** - * igbvf_transmit - Transmit a packet - * - * @v netdev Network device - * @v iobuf I/O buffer - * - * @ret rc Returns 0 on success, negative on failure - */ -static int igbvf_transmit ( struct net_device *netdev, struct io_buffer *iobuf ) -{ - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - struct e1000_hw *hw = &adapter->hw; - uint32_t tx_curr = adapter->tx_tail; - union e1000_adv_tx_desc *tx_curr_desc; - - DBGP ("igbvf_transmit\n"); - - if ( adapter->tx_fill_ctr == NUM_TX_DESC ) { - DBG ("TX overflow\n"); - return -ENOBUFS; - } - - /* Save pointer to iobuf we have been given to transmit, - netdev_tx_complete() will need it later - */ - adapter->tx_iobuf[tx_curr] = iobuf; - - tx_curr_desc = ( void * ) ( adapter->tx_base ) + - ( tx_curr * sizeof ( *adapter->tx_base ) ); - - DBG ( "tx_curr_desc = %#08lx\n", virt_to_bus ( tx_curr_desc ) ); - DBG ( "tx_curr_desc + 16 = %#08lx\n", virt_to_bus ( tx_curr_desc ) + 16 ); - DBG ( "iobuf->data = %#08lx\n", virt_to_bus ( iobuf->data ) ); - - /* Add the packet to TX ring - */ - tx_curr_desc->read.buffer_addr = virt_to_bus ( iobuf->data ); - tx_curr_desc->read.cmd_type_len = adapter->txd_cmd |(iob_len ( iobuf )) ; - // minus hdr_len ???? - tx_curr_desc->read.olinfo_status = ((iob_len ( iobuf )) << E1000_ADVTXD_PAYLEN_SHIFT); - - DBG ( "TX fill: %d tx_curr: %d addr: %#08lx len: %zd\n", adapter->tx_fill_ctr, - tx_curr, virt_to_bus ( iobuf->data ), iob_len ( iobuf ) ); - - /* Point to next free descriptor */ - adapter->tx_tail = ( adapter->tx_tail + 1 ) % NUM_TX_DESC; - adapter->tx_fill_ctr++; - - /* Write new tail to NIC, making packet available for transmit - */ - ew32 ( TDT(0), adapter->tx_tail ); - e1e_flush (); - - return 0; -} - -/** igbvf net device operations */ -static struct net_device_operations igbvf_operations = { - .open = igbvf_open, - .close = igbvf_close, - .transmit = igbvf_transmit, - .poll = igbvf_poll, - .irq = igbvf_irq, -}; - -/** - * igbvf_get_hw_control - get control of the h/w from f/w - * @adapter: address of board private structure - * - * igb_get_hw_control sets CTRL_EXT:DRV_LOAD bit. - * For ASF and Pass Through versions of f/w this means that - * the driver is loaded. - * - **/ -void igbvf_get_hw_control ( struct igbvf_adapter *adapter ) -{ - struct e1000_hw *hw = &adapter->hw; - u32 ctrl_ext; - - /* Let firmware know the driver has taken over */ - ctrl_ext = er32 ( CTRL_EXT ); - ew32 ( CTRL_EXT, ctrl_ext | E1000_CTRL_EXT_DRV_LOAD ); -} - -/** - * igbvf_probe - Device Initialization Routine - * @pdev: PCI device information struct - * @ent: entry in igbvf_pci_tbl - * - * Returns 0 on success, negative on failure - * - * igbvf_probe initializes an adapter identified by a pci_dev structure. - * The OS initialization, configuring of the adapter private structure, - * and a hardware reset occur. - **/ -int igbvf_probe ( struct pci_device *pdev ) -{ - int err; - struct net_device *netdev; - struct igbvf_adapter *adapter; - unsigned long mmio_start, mmio_len; - struct e1000_hw *hw; - - DBG ( "igbvf_probe\n" ); - - err = -ENOMEM; - - /* Allocate net device ( also allocates memory for netdev->priv - and makes netdev-priv point to it ) */ - netdev = alloc_etherdev ( sizeof ( struct igbvf_adapter ) ); - if ( ! netdev ) - goto err_alloc_etherdev; - - /* Associate igbvf-specific network operations operations with - * generic network device layer */ - netdev_init ( netdev, &igbvf_operations ); - - /* Associate this network device with given PCI device */ - pci_set_drvdata ( pdev, netdev ); - netdev->dev = &pdev->dev; - - /* Initialize driver private storage */ - adapter = netdev_priv ( netdev ); - memset ( adapter, 0, ( sizeof ( *adapter ) ) ); - - adapter->pdev = pdev; - - adapter->ioaddr = pdev->ioaddr; - adapter->hw.io_base = pdev->ioaddr; - - hw = &adapter->hw; - hw->vendor_id = pdev->vendor; - hw->device_id = pdev->device; - - adapter->irqno = pdev->irq; - adapter->netdev = netdev; - adapter->hw.back = adapter; - - adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN; - adapter->max_hw_frame_size = ETH_FRAME_LEN + ETH_FCS_LEN; - - adapter->tx_ring_size = sizeof ( *adapter->tx_base ) * NUM_TX_DESC; - adapter->rx_ring_size = sizeof ( *adapter->rx_base ) * NUM_RX_DESC; - - /* Fix up PCI device */ - adjust_pci_device ( pdev ); - - err = -EIO; - - mmio_start = pci_bar_start ( pdev, PCI_BASE_ADDRESS_0 ); - mmio_len = pci_bar_size ( pdev, PCI_BASE_ADDRESS_0 ); - - DBG ( "mmio_start: %#08lx\n", mmio_start ); - DBG ( "mmio_len: %#08lx\n", mmio_len ); - - adapter->hw.hw_addr = ioremap ( mmio_start, mmio_len ); - DBG ( "adapter->hw.hw_addr: %p\n", adapter->hw.hw_addr ); - - if ( ! adapter->hw.hw_addr ) { - DBG ( "err_ioremap\n" ); - goto err_ioremap; - } - - /* setup adapter struct */ - err = igbvf_sw_init ( adapter ); - if (err) { - DBG ( "err_sw_init\n" ); - goto err_sw_init; - } - - /* reset the controller to put the device in a known good state */ - err = hw->mac.ops.reset_hw ( hw ); - if ( err ) { - DBG ("PF still in reset state, assigning new address\n"); - netdev->hw_addr[0] = 0x21; - netdev->hw_addr[1] = 0x21; - netdev->hw_addr[2] = 0x21; - netdev->hw_addr[3] = 0x21; - netdev->hw_addr[4] = 0x21; - netdev->hw_addr[5] = 0x21; - netdev->hw_addr[6] = 0x21; - } else { - err = hw->mac.ops.read_mac_addr(hw); - if (err) { - DBG ("Error reading MAC address\n"); - goto err_hw_init; - } - if ( ! is_valid_ether_addr(adapter->hw.mac.addr) ) { - /* Assign random MAC address */ - eth_random_addr(adapter->hw.mac.addr); - } - } - - memcpy ( netdev->hw_addr, adapter->hw.mac.addr, ETH_ALEN ); - - /* reset the hardware with the new settings */ - igbvf_reset ( adapter ); - - /* let the f/w know that the h/w is now under the control of the - * driver. */ - igbvf_get_hw_control ( adapter ); - - /* Mark as link up; we don't yet handle link state */ - netdev_link_up ( netdev ); - - if ( ( err = register_netdev ( netdev ) ) != 0) { - DBG ( "err_register\n" ); - goto err_register; - } - - DBG ("igbvf_probe_succeeded\n"); - - return 0; - -err_register: -err_hw_init: -err_sw_init: - iounmap ( adapter->hw.hw_addr ); -err_ioremap: - netdev_put ( netdev ); -err_alloc_etherdev: - return err; -} - -/** - * igbvf_remove - Device Removal Routine - * @pdev: PCI device information struct - * - * igbvf_remove is called by the PCI subsystem to alert the driver - * that it should release a PCI device. The could be caused by a - * Hot-Plug event, or because the driver is going to be removed from - * memory. - **/ -void igbvf_remove ( struct pci_device *pdev ) -{ - struct net_device *netdev = pci_get_drvdata ( pdev ); - struct igbvf_adapter *adapter = netdev_priv ( netdev ); - - DBG ( "igbvf_remove\n" ); - - if ( adapter->hw.flash_address ) - iounmap ( adapter->hw.flash_address ); - if ( adapter->hw.hw_addr ) - iounmap ( adapter->hw.hw_addr ); - - unregister_netdev ( netdev ); - igbvf_reset ( adapter ); - netdev_nullify ( netdev ); - netdev_put ( netdev ); -} - -static struct pci_device_id igbvf_pci_tbl[] = { - PCI_ROM(0x8086, 0x10CA, "igbvf", "E1000_DEV_ID_82576_VF", 0), - PCI_ROM(0x8086, 0x1520, "i350vf", "E1000_DEV_ID_I350_VF", 0), -}; - - -struct pci_driver igbvf_driver __pci_driver = { - .ids = igbvf_pci_tbl, - .id_count = (sizeof(igbvf_pci_tbl) / sizeof(igbvf_pci_tbl[0])), - .probe = igbvf_probe, - .remove = igbvf_remove, -}; |