32341ad63c
from interrupt handlers and watchdog routines instead of queueing a task to call foo_start(). Reviewed by: yongari MFC after: 1 month
170 lines
4.6 KiB
C
170 lines
4.6 KiB
C
/*-
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* Copyright (c) 2008 Stanislav Sedov <stas@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, this list of conditions and the following 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef IF_AEVAR_H
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#define IF_AEVAR_H
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/*
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* Supported chips identifiers.
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*/
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#define VENDORID_ATTANSIC 0x1969
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#define DEVICEID_ATTANSIC_L2 0x2048
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/* How much to wait for reset to complete (10 microsecond units). */
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#define AE_RESET_TIMEOUT 100
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/* How much to wait for device to enter idle state (100 microsecond units). */
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#define AE_IDLE_TIMEOUT 100
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/* How much to wait for MDIO to do the work (2 microsecond units). */
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#define AE_MDIO_TIMEOUT 10
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/* How much to wait for VPD reading operation to complete (2 ms units). */
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#define AE_VPD_TIMEOUT 10
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/* How much to wait for send operation to complete (HZ units). */
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#define AE_TX_TIMEOUT 5
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/* Default PHY address. */
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#define AE_PHYADDR_DEFAULT 0
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/* Tx packet descriptor header format. */
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typedef struct ae_txd {
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uint16_t len;
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uint16_t vlan;
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} __packed ae_txd_t;
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/* Tx status descriptor format. */
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typedef struct ae_txs {
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uint16_t len;
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uint16_t flags;
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} __packed ae_txs_t;
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/* Rx packet descriptor format. */
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typedef struct ae_rxd {
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uint16_t len;
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uint16_t flags;
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uint16_t vlan;
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uint16_t __pad;
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uint8_t data[1528];
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} __packed ae_rxd_t;
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/* Statistics. */
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typedef struct ae_stats {
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uint32_t rx_bcast;
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uint32_t rx_mcast;
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uint32_t rx_pause;
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uint32_t rx_ctrl;
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uint32_t rx_crcerr;
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uint32_t rx_codeerr;
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uint32_t rx_runt;
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uint32_t rx_frag;
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uint32_t rx_trunc;
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uint32_t rx_align;
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uint32_t tx_bcast;
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uint32_t tx_mcast;
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uint32_t tx_pause;
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uint32_t tx_ctrl;
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uint32_t tx_defer;
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uint32_t tx_excdefer;
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uint32_t tx_singlecol;
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uint32_t tx_multicol;
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uint32_t tx_latecol;
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uint32_t tx_abortcol;
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uint32_t tx_underrun;
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} ae_stats_t;
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/* Software state structure. */
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typedef struct ae_softc {
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struct ifnet *ifp;
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device_t dev;
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device_t miibus;
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struct resource *mem[1];
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struct resource_spec *spec_mem;
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struct resource *irq[1];
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struct resource_spec *spec_irq;
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void *intrhand;
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struct mtx mtx;
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uint8_t eaddr[ETHER_ADDR_LEN];
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uint8_t flags;
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int if_flags;
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struct callout tick_ch;
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/* Tasks. */
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struct task int_task;
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struct task link_task;
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struct taskqueue *tq;
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/* DMA tags. */
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bus_dma_tag_t dma_parent_tag;
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bus_dma_tag_t dma_rxd_tag;
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bus_dma_tag_t dma_txd_tag;
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bus_dma_tag_t dma_txs_tag;
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bus_dmamap_t dma_rxd_map;
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bus_dmamap_t dma_txd_map;
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bus_dmamap_t dma_txs_map;
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bus_addr_t dma_rxd_busaddr;
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bus_addr_t dma_txd_busaddr;
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bus_addr_t dma_txs_busaddr;
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char *rxd_base_dma; /* Start of allocated area. */
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ae_rxd_t *rxd_base; /* Start of RxD ring. */
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char *txd_base; /* Start of TxD ring. */
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ae_txs_t *txs_base; /* Start of TxS ring. */
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/* Ring pointers. */
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unsigned int rxd_cur;
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unsigned int txd_cur;
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unsigned int txs_cur;
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unsigned int txs_ack;
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unsigned int txd_ack;
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int tx_inproc; /* Active Tx frames in ring. */
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int wd_timer;
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ae_stats_t stats;
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} ae_softc_t;
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#define AE_LOCK(_sc) mtx_lock(&(_sc)->mtx)
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#define AE_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
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#define AE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
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#define BUS_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF)
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#define BUS_ADDR_HI(x) ((uint64_t) (x) >> 32)
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#define AE_FLAG_LINK 0x01 /* Has link. */
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#define AE_FLAG_DETACH 0x02 /* Is detaching. */
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#define AE_FLAG_TXAVAIL 0x04 /* Tx'es available. */
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#define AE_FLAG_MSI 0x08 /* Using MSI. */
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#define AE_FLAG_PMG 0x10 /* Supports PCI power management. */
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#endif /* IF_AEVAR_H */
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