mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-22 02:37:15 +00:00
9c067b844f
This driver is based of the enic (Cisco VIC) DPDK driver. It provides basic ethernet functionality. Has been run with various VIC cards to do UEFI PXE boot with NFS root.
46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright 2008-2017 Cisco Systems, Inc. All rights reserved.
|
|
* Copyright 2007 Nuova Systems, Inc. All rights reserved.
|
|
*/
|
|
|
|
#include "enic.h"
|
|
#include "vnic_dev.h"
|
|
#include "vnic_cq.h"
|
|
|
|
void vnic_cq_init(struct vnic_cq *cq, unsigned int flow_control_enable,
|
|
unsigned int color_enable, unsigned int cq_head, unsigned int cq_tail,
|
|
unsigned int cq_tail_color, unsigned int interrupt_enable,
|
|
unsigned int cq_entry_enable, unsigned int cq_message_enable,
|
|
unsigned int interrupt_offset, u64 cq_message_addr)
|
|
{
|
|
u64 paddr;
|
|
|
|
paddr = (u64)cq->ring.base_addr | VNIC_PADDR_TARGET;
|
|
ENIC_BUS_WRITE_8(cq->ctrl, CQ_RING_BASE, paddr);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_RING_SIZE, cq->ring.desc_count);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_FLOW_CONTROL_ENABLE, flow_control_enable);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_COLOR_ENABLE, color_enable);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_HEAD, cq_head);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_TAIL, cq_tail);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_TAIL_COLOR, cq_tail_color);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_INTR_ENABLE, interrupt_enable);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_ENTRY_ENABLE, cq_entry_enable);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_MESSAGE_ENABLE, cq_message_enable);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_INTR_OFFSET, interrupt_offset);
|
|
ENIC_BUS_WRITE_8(cq->ctrl, CQ_MESSAGE_ADDR, cq_message_addr);
|
|
|
|
cq->interrupt_offset = interrupt_offset;
|
|
}
|
|
|
|
void vnic_cq_clean(struct vnic_cq *cq)
|
|
{
|
|
cq->to_clean = 0;
|
|
cq->last_color = 0;
|
|
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_HEAD, 0);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_TAIL, 0);
|
|
ENIC_BUS_WRITE_4(cq->ctrl, CQ_TAIL_COLOR, 1);
|
|
|
|
vnic_dev_clear_desc_ring(&cq->ring);
|
|
}
|