718cf2ccb9
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
166 lines
4.6 KiB
C
166 lines
4.6 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2010, Pyun YongHyeon <yongari@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _IF_VTEVAR_H
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#define _IF_VTEVAR_H
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#define VTE_TX_RING_CNT 64
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#define VTE_TX_RING_ALIGN 16
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/*
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* The TX/RX descriptor format has no limitation for number of
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* descriptors in TX/RX ring. However, the maximum number of
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* descriptors that could be set as RX descriptor ring residue
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* counter is 255. This effectively limits number of RX
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* descriptors available to be less than or equal to 255.
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*/
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#define VTE_RX_RING_CNT 128
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#define VTE_RX_RING_ALIGN 16
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#define VTE_RX_BUF_ALIGN 4
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#define VTE_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
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#define VTE_TX_RING_SZ \
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(sizeof(struct vte_tx_desc) * VTE_TX_RING_CNT)
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#define VTE_RX_RING_SZ \
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(sizeof(struct vte_rx_desc) * VTE_RX_RING_CNT)
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#define VTE_RX_BUF_SIZE_MAX (MCLBYTES - sizeof(uint32_t))
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#define VTE_MIN_FRAMELEN (ETHER_MIN_LEN - ETHER_CRC_LEN)
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struct vte_rxdesc {
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struct mbuf *rx_m;
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bus_dmamap_t rx_dmamap;
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struct vte_rx_desc *rx_desc;
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};
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struct vte_txdesc {
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struct mbuf *tx_m;
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bus_dmamap_t tx_dmamap;
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struct vte_tx_desc *tx_desc;
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int tx_flags;
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#define VTE_TXMBUF 0x0001
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};
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struct vte_chain_data {
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bus_dma_tag_t vte_parent_tag;
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bus_dma_tag_t vte_buffer_tag;
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bus_dma_tag_t vte_tx_tag;
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struct vte_txdesc vte_txdesc[VTE_TX_RING_CNT];
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struct mbuf *vte_txmbufs[VTE_TX_RING_CNT];
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bus_dma_tag_t vte_rx_tag;
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struct vte_rxdesc vte_rxdesc[VTE_RX_RING_CNT];
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bus_dma_tag_t vte_tx_ring_tag;
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bus_dmamap_t vte_tx_ring_map;
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bus_dma_tag_t vte_rx_ring_tag;
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bus_dmamap_t vte_rx_ring_map;
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bus_dmamap_t vte_rx_sparemap;
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struct vte_tx_desc *vte_tx_ring;
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bus_addr_t vte_tx_ring_paddr;
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struct vte_rx_desc *vte_rx_ring;
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bus_addr_t vte_rx_ring_paddr;
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int vte_tx_prod;
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int vte_tx_cons;
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int vte_tx_cnt;
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int vte_rx_cons;
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};
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struct vte_hw_stats {
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/* RX stats. */
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uint32_t rx_frames;
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uint32_t rx_bcast_frames;
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uint32_t rx_mcast_frames;
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uint32_t rx_runts;
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uint32_t rx_crcerrs;
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uint32_t rx_long_frames;
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uint32_t rx_fifo_full;
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uint32_t rx_desc_unavail;
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uint32_t rx_pause_frames;
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/* TX stats. */
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uint32_t tx_frames;
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uint32_t tx_underruns;
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uint32_t tx_late_colls;
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uint32_t tx_pause_frames;
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};
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struct vte_ident {
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uint16_t vendorid;
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uint16_t deviceid;
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const char *name;
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};
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/*
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* Software state per device.
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*/
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struct vte_softc {
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struct ifnet *vte_ifp;
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device_t vte_dev;
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device_t vte_miibus;
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struct resource *vte_res;
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int vte_res_id;
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int vte_res_type;
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struct resource *vte_irq;
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void *vte_intrhand;
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const struct vte_ident *vte_ident;
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uint8_t vte_eaddr[ETHER_ADDR_LEN];
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int vte_flags;
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#define VTE_FLAG_LINK 0x8000
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struct callout vte_tick_ch;
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struct vte_hw_stats vte_stats;
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struct vte_chain_data vte_cdata;
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int vte_if_flags;
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int vte_watchdog_timer;
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int vte_int_rx_mod;
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int vte_int_tx_mod;
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struct mtx vte_mtx;
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};
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/* Register access macros. */
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#define CSR_WRITE_2(_sc, reg, val) \
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bus_write_2((_sc)->vte_res, (reg), (val))
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#define CSR_READ_2(_sc, reg) \
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bus_read_2((_sc)->vte_res, (reg))
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#define VTE_LOCK(_sc) mtx_lock(&(_sc)->vte_mtx)
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#define VTE_UNLOCK(_sc) mtx_unlock(&(_sc)->vte_mtx)
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#define VTE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->vte_mtx, MA_OWNED)
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#define VTE_TX_TIMEOUT 5
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#define VTE_RESET_TIMEOUT 100
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#define VTE_TIMEOUT 1000
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#define VTE_PHY_TIMEOUT 1000
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#endif /* _IF_VTEVAR_H */
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