diff options
Diffstat (limited to 'src/dpdk22/drivers/net/virtio/virtio_pci.h')
| -rw-r--r-- | src/dpdk22/drivers/net/virtio/virtio_pci.h | 272 |
1 files changed, 0 insertions, 272 deletions
diff --git a/src/dpdk22/drivers/net/virtio/virtio_pci.h b/src/dpdk22/drivers/net/virtio/virtio_pci.h deleted file mode 100644 index 47f722a0..00000000 --- a/src/dpdk22/drivers/net/virtio/virtio_pci.h +++ /dev/null @@ -1,272 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef _VIRTIO_PCI_H_ -#define _VIRTIO_PCI_H_ - -#include <stdint.h> - -#ifdef __FreeBSD__ -#include <sys/types.h> -#include <machine/cpufunc.h> -#else -#include <sys/io.h> -#endif - -#include <rte_ethdev.h> - -struct virtqueue; - -/* VirtIO PCI vendor/device ID. */ -#define VIRTIO_PCI_VENDORID 0x1AF4 -#define VIRTIO_PCI_DEVICEID_MIN 0x1000 -#define VIRTIO_PCI_DEVICEID_MAX 0x103F - -/* VirtIO ABI version, this must match exactly. */ -#define VIRTIO_PCI_ABI_VERSION 0 - -/* - * VirtIO Header, located in BAR 0. - */ -#define VIRTIO_PCI_HOST_FEATURES 0 /* host's supported features (32bit, RO)*/ -#define VIRTIO_PCI_GUEST_FEATURES 4 /* guest's supported features (32, RW) */ -#define VIRTIO_PCI_QUEUE_PFN 8 /* physical address of VQ (32, RW) */ -#define VIRTIO_PCI_QUEUE_NUM 12 /* number of ring entries (16, RO) */ -#define VIRTIO_PCI_QUEUE_SEL 14 /* current VQ selection (16, RW) */ -#define VIRTIO_PCI_QUEUE_NOTIFY 16 /* notify host regarding VQ (16, RW) */ -#define VIRTIO_PCI_STATUS 18 /* device status register (8, RW) */ -#define VIRTIO_PCI_ISR 19 /* interrupt status register, reading - * also clears the register (8, RO) */ -/* Only if MSIX is enabled: */ -#define VIRTIO_MSI_CONFIG_VECTOR 20 /* configuration change vector (16, RW) */ -#define VIRTIO_MSI_QUEUE_VECTOR 22 /* vector for selected VQ notifications - (16, RW) */ - -/* The bit of the ISR which indicates a device has an interrupt. */ -#define VIRTIO_PCI_ISR_INTR 0x1 -/* The bit of the ISR which indicates a device configuration change. */ -#define VIRTIO_PCI_ISR_CONFIG 0x2 -/* Vector value used to disable MSI for queue. */ -#define VIRTIO_MSI_NO_VECTOR 0xFFFF - -/* VirtIO device IDs. */ -#define VIRTIO_ID_NETWORK 0x01 -#define VIRTIO_ID_BLOCK 0x02 -#define VIRTIO_ID_CONSOLE 0x03 -#define VIRTIO_ID_ENTROPY 0x04 -#define VIRTIO_ID_BALLOON 0x05 -#define VIRTIO_ID_IOMEMORY 0x06 -#define VIRTIO_ID_9P 0x09 - -/* Status byte for guest to report progress. */ -#define VIRTIO_CONFIG_STATUS_RESET 0x00 -#define VIRTIO_CONFIG_STATUS_ACK 0x01 -#define VIRTIO_CONFIG_STATUS_DRIVER 0x02 -#define VIRTIO_CONFIG_STATUS_DRIVER_OK 0x04 -#define VIRTIO_CONFIG_STATUS_FAILED 0x80 - -/* - * Each virtqueue indirect descriptor list must be physically contiguous. - * To allow us to malloc(9) each list individually, limit the number - * supported to what will fit in one page. With 4KB pages, this is a limit - * of 256 descriptors. If there is ever a need for more, we can switch to - * contigmalloc(9) for the larger allocations, similar to what - * bus_dmamem_alloc(9) does. - * - * Note the sizeof(struct vring_desc) is 16 bytes. - */ -#define VIRTIO_MAX_INDIRECT ((int) (PAGE_SIZE / 16)) - -/* The feature bitmap for virtio net */ -#define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */ -#define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */ -#define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */ -#define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */ -#define VIRTIO_NET_F_GUEST_TSO6 8 /* Guest can handle TSOv6 in. */ -#define VIRTIO_NET_F_GUEST_ECN 9 /* Guest can handle TSO[6] w/ ECN in. */ -#define VIRTIO_NET_F_GUEST_UFO 10 /* Guest can handle UFO in. */ -#define VIRTIO_NET_F_HOST_TSO4 11 /* Host can handle TSOv4 in. */ -#define VIRTIO_NET_F_HOST_TSO6 12 /* Host can handle TSOv6 in. */ -#define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */ -#define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */ -#define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */ -#define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */ -#define VIRTIO_NET_F_CTRL_VQ 17 /* Control channel available */ -#define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */ -#define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */ -#define VIRTIO_NET_F_CTRL_RX_EXTRA 20 /* Extra RX mode control support */ -#define VIRTIO_NET_F_GUEST_ANNOUNCE 21 /* Guest can announce device on the - * network */ -#define VIRTIO_NET_F_MQ 22 /* Device supports Receive Flow - * Steering */ -#define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */ - -/* Do we get callbacks when the ring is completely used, even if we've - * suppressed them? */ -#define VIRTIO_F_NOTIFY_ON_EMPTY 24 - -/* Can the device handle any descriptor layout? */ -#define VIRTIO_F_ANY_LAYOUT 27 - -/* We support indirect buffer descriptors */ -#define VIRTIO_RING_F_INDIRECT_DESC 28 - -/* - * Some VirtIO feature bits (currently bits 28 through 31) are - * reserved for the transport being used (eg. virtio_ring), the - * rest are per-device feature bits. - */ -#define VIRTIO_TRANSPORT_F_START 28 -#define VIRTIO_TRANSPORT_F_END 32 - -/* The Guest publishes the used index for which it expects an interrupt - * at the end of the avail ring. Host should ignore the avail->flags field. */ -/* The Host publishes the avail index for which it expects a kick - * at the end of the used ring. Guest should ignore the used->flags field. */ -#define VIRTIO_RING_F_EVENT_IDX 29 - -#define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ -#define VIRTIO_NET_S_ANNOUNCE 2 /* Announcement is needed */ - -/* - * Maximum number of virtqueues per device. - */ -#define VIRTIO_MAX_VIRTQUEUES 8 - -struct virtio_hw { - struct virtqueue *cvq; - uint32_t io_base; - uint32_t guest_features; - uint32_t max_tx_queues; - uint32_t max_rx_queues; - uint16_t vtnet_hdr_size; - uint8_t vlan_strip; - uint8_t use_msix; - uint8_t started; - uint8_t mac_addr[ETHER_ADDR_LEN]; -}; - -/* - * This structure is just a reference to read - * net device specific config space; it just a chodu structure - * - */ -struct virtio_net_config { - /* The config defining mac address (if VIRTIO_NET_F_MAC) */ - uint8_t mac[ETHER_ADDR_LEN]; - /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ - uint16_t status; - uint16_t max_virtqueue_pairs; -} __attribute__((packed)); - -/* - * The remaining space is defined by each driver as the per-driver - * configuration space. - */ -#define VIRTIO_PCI_CONFIG(hw) (((hw)->use_msix) ? 24 : 20) - -/* - * How many bits to shift physical queue address written to QUEUE_PFN. - * 12 is historical, and due to x86 page size. - */ -#define VIRTIO_PCI_QUEUE_ADDR_SHIFT 12 - -/* The alignment to use between consumer and producer parts of vring. */ -#define VIRTIO_PCI_VRING_ALIGN 4096 - -#ifdef __FreeBSD__ - -static inline void -outb_p(unsigned char data, unsigned int port) -{ - - outb(port, (u_char)data); -} - -static inline void -outw_p(unsigned short data, unsigned int port) -{ - outw(port, (u_short)data); -} - -static inline void -outl_p(unsigned int data, unsigned int port) -{ - outl(port, (u_int)data); -} -#endif - -#define VIRTIO_PCI_REG_ADDR(hw, reg) \ - (unsigned short)((hw)->io_base + (reg)) - -#define VIRTIO_READ_REG_1(hw, reg) \ - inb((VIRTIO_PCI_REG_ADDR((hw), (reg)))) -#define VIRTIO_WRITE_REG_1(hw, reg, value) \ - outb_p((unsigned char)(value), (VIRTIO_PCI_REG_ADDR((hw), (reg)))) - -#define VIRTIO_READ_REG_2(hw, reg) \ - inw((VIRTIO_PCI_REG_ADDR((hw), (reg)))) -#define VIRTIO_WRITE_REG_2(hw, reg, value) \ - outw_p((unsigned short)(value), (VIRTIO_PCI_REG_ADDR((hw), (reg)))) - -#define VIRTIO_READ_REG_4(hw, reg) \ - inl((VIRTIO_PCI_REG_ADDR((hw), (reg)))) -#define VIRTIO_WRITE_REG_4(hw, reg, value) \ - outl_p((unsigned int)(value), (VIRTIO_PCI_REG_ADDR((hw), (reg)))) - -static inline int -vtpci_with_feature(struct virtio_hw *hw, uint32_t bit) -{ - return (hw->guest_features & (1u << bit)) != 0; -} - -/* - * Function declaration from virtio_pci.c - */ -void vtpci_reset(struct virtio_hw *); - -void vtpci_reinit_complete(struct virtio_hw *); - -void vtpci_set_status(struct virtio_hw *, uint8_t); - -uint32_t vtpci_negotiate_features(struct virtio_hw *, uint32_t); - -void vtpci_write_dev_config(struct virtio_hw *, uint64_t, void *, int); - -void vtpci_read_dev_config(struct virtio_hw *, uint64_t, void *, int); - -uint8_t vtpci_isr(struct virtio_hw *); - -uint16_t vtpci_irq_config(struct virtio_hw *, uint16_t); - -#endif /* _VIRTIO_PCI_H_ */ |