diff options
Diffstat (limited to 'src/dpdk22/drivers/net/virtio/virtio_pci.c')
| -rw-r--r-- | src/dpdk22/drivers/net/virtio/virtio_pci.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/src/dpdk22/drivers/net/virtio/virtio_pci.c b/src/dpdk22/drivers/net/virtio/virtio_pci.c deleted file mode 100644 index 2245beca..00000000 --- a/src/dpdk22/drivers/net/virtio/virtio_pci.c +++ /dev/null @@ -1,147 +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. - */ -#include <stdint.h> - -#include "virtio_pci.h" -#include "virtio_logs.h" - -static uint8_t vtpci_get_status(struct virtio_hw *); - -void -vtpci_read_dev_config(struct virtio_hw *hw, uint64_t offset, - void *dst, int length) -{ - uint64_t off; - uint8_t *d; - int size; - - off = VIRTIO_PCI_CONFIG(hw) + offset; - for (d = dst; length > 0; d += size, off += size, length -= size) { - if (length >= 4) { - size = 4; - *(uint32_t *)d = VIRTIO_READ_REG_4(hw, off); - } else if (length >= 2) { - size = 2; - *(uint16_t *)d = VIRTIO_READ_REG_2(hw, off); - } else { - size = 1; - *d = VIRTIO_READ_REG_1(hw, off); - } - } -} - -void -vtpci_write_dev_config(struct virtio_hw *hw, uint64_t offset, - void *src, int length) -{ - uint64_t off; - uint8_t *s; - int size; - - off = VIRTIO_PCI_CONFIG(hw) + offset; - for (s = src; length > 0; s += size, off += size, length -= size) { - if (length >= 4) { - size = 4; - VIRTIO_WRITE_REG_4(hw, off, *(uint32_t *)s); - } else if (length >= 2) { - size = 2; - VIRTIO_WRITE_REG_2(hw, off, *(uint16_t *)s); - } else { - size = 1; - VIRTIO_WRITE_REG_1(hw, off, *s); - } - } -} - -uint32_t -vtpci_negotiate_features(struct virtio_hw *hw, uint32_t host_features) -{ - uint32_t features; - /* - * Limit negotiated features to what the driver, virtqueue, and - * host all support. - */ - features = host_features & hw->guest_features; - - VIRTIO_WRITE_REG_4(hw, VIRTIO_PCI_GUEST_FEATURES, features); - return features; -} - - -void -vtpci_reset(struct virtio_hw *hw) -{ - /* - * Setting the status to RESET sets the host device to - * the original, uninitialized state. - */ - vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_RESET); - vtpci_get_status(hw); -} - -void -vtpci_reinit_complete(struct virtio_hw *hw) -{ - vtpci_set_status(hw, VIRTIO_CONFIG_STATUS_DRIVER_OK); -} - -static uint8_t -vtpci_get_status(struct virtio_hw *hw) -{ - return VIRTIO_READ_REG_1(hw, VIRTIO_PCI_STATUS); -} - -void -vtpci_set_status(struct virtio_hw *hw, uint8_t status) -{ - if (status != VIRTIO_CONFIG_STATUS_RESET) - status = (uint8_t)(status | vtpci_get_status(hw)); - - VIRTIO_WRITE_REG_1(hw, VIRTIO_PCI_STATUS, status); -} - -uint8_t -vtpci_isr(struct virtio_hw *hw) -{ - - return VIRTIO_READ_REG_1(hw, VIRTIO_PCI_ISR); -} - - -/* Enable one vector (0) for Link State Intrerrupt */ -uint16_t -vtpci_irq_config(struct virtio_hw *hw, uint16_t vec) -{ - VIRTIO_WRITE_REG_2(hw, VIRTIO_MSI_CONFIG_VECTOR, vec); - return VIRTIO_READ_REG_2(hw, VIRTIO_MSI_CONFIG_VECTOR); -} |