164 lines
4.6 KiB
C
164 lines
4.6 KiB
C
|
/*-
|
||
|
* Copyright (c) 2010, Pyun YongHyeon <yongari@FreeBSD.org>
|
||
|
* All rights reserved.
|
||
|
*
|
||
|
* Redistribution and use in source and binary forms, with or without
|
||
|
* modification, are permitted provided that the following conditions
|
||
|
* are met:
|
||
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
* notice unmodified, this list of conditions, and the following
|
||
|
* disclaimer.
|
||
|
* 2. 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.
|
||
|
*
|
||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
||
|
*
|
||
|
* $FreeBSD$
|
||
|
*/
|
||
|
|
||
|
#ifndef _IF_VTEVAR_H
|
||
|
#define _IF_VTEVAR_H
|
||
|
|
||
|
#define VTE_TX_RING_CNT 64
|
||
|
#define VTE_TX_RING_ALIGN 16
|
||
|
/*
|
||
|
* The TX/RX descriptor format has no limitation for number of
|
||
|
* descriptors in TX/RX ring. However, the maximum number of
|
||
|
* descriptors that could be set as RX descriptor ring residue
|
||
|
* counter is 255. This effectively limits number of RX
|
||
|
* descriptors available to be less than or equal to 255.
|
||
|
*/
|
||
|
#define VTE_RX_RING_CNT 128
|
||
|
#define VTE_RX_RING_ALIGN 16
|
||
|
#define VTE_RX_BUF_ALIGN 4
|
||
|
|
||
|
#define VTE_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
|
||
|
|
||
|
#define VTE_TX_RING_SZ \
|
||
|
(sizeof(struct vte_tx_desc) * VTE_TX_RING_CNT)
|
||
|
#define VTE_RX_RING_SZ \
|
||
|
(sizeof(struct vte_rx_desc) * VTE_RX_RING_CNT)
|
||
|
|
||
|
#define VTE_RX_BUF_SIZE_MAX (MCLBYTES - sizeof(uint32_t))
|
||
|
|
||
|
#define VTE_MIN_FRAMELEN (ETHER_MIN_LEN - ETHER_CRC_LEN)
|
||
|
|
||
|
struct vte_rxdesc {
|
||
|
struct mbuf *rx_m;
|
||
|
bus_dmamap_t rx_dmamap;
|
||
|
struct vte_rx_desc *rx_desc;
|
||
|
};
|
||
|
|
||
|
struct vte_txdesc {
|
||
|
struct mbuf *tx_m;
|
||
|
bus_dmamap_t tx_dmamap;
|
||
|
struct vte_tx_desc *tx_desc;
|
||
|
int tx_flags;
|
||
|
#define VTE_TXMBUF 0x0001
|
||
|
};
|
||
|
|
||
|
struct vte_chain_data {
|
||
|
bus_dma_tag_t vte_parent_tag;
|
||
|
bus_dma_tag_t vte_buffer_tag;
|
||
|
bus_dma_tag_t vte_tx_tag;
|
||
|
struct vte_txdesc vte_txdesc[VTE_TX_RING_CNT];
|
||
|
struct mbuf *vte_txmbufs[VTE_TX_RING_CNT];
|
||
|
bus_dma_tag_t vte_rx_tag;
|
||
|
struct vte_rxdesc vte_rxdesc[VTE_RX_RING_CNT];
|
||
|
bus_dma_tag_t vte_tx_ring_tag;
|
||
|
bus_dmamap_t vte_tx_ring_map;
|
||
|
bus_dma_tag_t vte_rx_ring_tag;
|
||
|
bus_dmamap_t vte_rx_ring_map;
|
||
|
bus_dmamap_t vte_rx_sparemap;
|
||
|
struct vte_tx_desc *vte_tx_ring;
|
||
|
bus_addr_t vte_tx_ring_paddr;
|
||
|
struct vte_rx_desc *vte_rx_ring;
|
||
|
bus_addr_t vte_rx_ring_paddr;
|
||
|
|
||
|
int vte_tx_prod;
|
||
|
int vte_tx_cons;
|
||
|
int vte_tx_cnt;
|
||
|
int vte_rx_cons;
|
||
|
};
|
||
|
|
||
|
struct vte_hw_stats {
|
||
|
/* RX stats. */
|
||
|
uint32_t rx_frames;
|
||
|
uint32_t rx_bcast_frames;
|
||
|
uint32_t rx_mcast_frames;
|
||
|
uint32_t rx_runts;
|
||
|
uint32_t rx_crcerrs;
|
||
|
uint32_t rx_long_frames;
|
||
|
uint32_t rx_fifo_full;
|
||
|
uint32_t rx_desc_unavail;
|
||
|
uint32_t rx_pause_frames;
|
||
|
|
||
|
/* TX stats. */
|
||
|
uint32_t tx_frames;
|
||
|
uint32_t tx_underruns;
|
||
|
uint32_t tx_late_colls;
|
||
|
uint32_t tx_pause_frames;
|
||
|
};
|
||
|
|
||
|
struct vte_ident {
|
||
|
uint16_t vendorid;
|
||
|
uint16_t deviceid;
|
||
|
const char *name;
|
||
|
};
|
||
|
|
||
|
/*
|
||
|
* Software state per device.
|
||
|
*/
|
||
|
struct vte_softc {
|
||
|
struct ifnet *vte_ifp;
|
||
|
device_t vte_dev;
|
||
|
device_t vte_miibus;
|
||
|
struct resource *vte_res;
|
||
|
int vte_res_id;
|
||
|
int vte_res_type;
|
||
|
struct resource *vte_irq;
|
||
|
void *vte_intrhand;
|
||
|
const struct vte_ident *vte_ident;
|
||
|
uint8_t vte_eaddr[ETHER_ADDR_LEN];
|
||
|
int vte_flags;
|
||
|
#define VTE_FLAG_LINK 0x8000
|
||
|
|
||
|
struct callout vte_tick_ch;
|
||
|
struct vte_hw_stats vte_stats;
|
||
|
struct vte_chain_data vte_cdata;
|
||
|
int vte_if_flags;
|
||
|
int vte_watchdog_timer;
|
||
|
int vte_int_rx_mod;
|
||
|
int vte_int_tx_mod;
|
||
|
|
||
|
struct mtx vte_mtx;
|
||
|
};
|
||
|
|
||
|
/* Register access macros. */
|
||
|
#define CSR_WRITE_2(_sc, reg, val) \
|
||
|
bus_write_2((_sc)->vte_res, (reg), (val))
|
||
|
#define CSR_READ_2(_sc, reg) \
|
||
|
bus_read_2((_sc)->vte_res, (reg))
|
||
|
|
||
|
#define VTE_LOCK(_sc) mtx_lock(&(_sc)->vte_mtx)
|
||
|
#define VTE_UNLOCK(_sc) mtx_unlock(&(_sc)->vte_mtx)
|
||
|
#define VTE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->vte_mtx, MA_OWNED)
|
||
|
|
||
|
#define VTE_TX_TIMEOUT 5
|
||
|
#define VTE_RESET_TIMEOUT 100
|
||
|
#define VTE_TIMEOUT 1000
|
||
|
#define VTE_PHY_TIMEOUT 1000
|
||
|
|
||
|
#endif /* _IF_VTEVAR_H */
|