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freebsd-skq/sys/dev/vge/if_vgevar.h
brooks 567ba9b00a Stop embedding struct ifnet at the top of driver softcs. Instead the 
struct ifnet or the layer 2 common structure it was embedded in have
been replaced with a struct ifnet pointer to be filled by a call to the
new function, if_alloc(). The layer 2 common structure is also allocated
via if_alloc() based on the interface type. It is hung off the new
struct ifnet member, if_l2com.

This change removes the size of these structures from the kernel ABI and
will allow us to better manage them as interfaces come and go.

Other changes of note:
 - Struct arpcom is no longer referenced in normal interface code.
   Instead the Ethernet address is accessed via the IFP2ENADDR() macro.
   To enforce this ac_enaddr has been renamed to _ac_enaddr.
 - The second argument to ether_ifattach is now always the mac address
   from driver private storage rather than sometimes being ac_enaddr.

Reviewed by:	sobomax, sam
2005-06-10 16:49:24 +00:00

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/*-
* Copyright (c) 2004
* Bill Paul <wpaul@windriver.com>. 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, 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Bill Paul.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul OR THE VOICES IN HIS HEAD
* 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.
*
* $FreeBSD$
*/
#if !defined(__i386__)
#define VGE_FIXUP_RX
#endif
#define VGE_JUMBO_MTU 9000
#define VGE_IFQ_MAXLEN 64
#define VGE_TX_DESC_CNT 256
#define VGE_RX_DESC_CNT 256 /* Must be a multiple of 4!! */
#define VGE_RING_ALIGN 256
#define VGE_RX_LIST_SZ (VGE_RX_DESC_CNT * sizeof(struct vge_rx_desc))
#define VGE_TX_LIST_SZ (VGE_TX_DESC_CNT * sizeof(struct vge_tx_desc))
#define VGE_TX_DESC_INC(x) (x = (x + 1) % VGE_TX_DESC_CNT)
#define VGE_RX_DESC_INC(x) (x = (x + 1) % VGE_RX_DESC_CNT)
#define VGE_ADDR_LO(y) ((u_int64_t) (y) & 0xFFFFFFFF)
#define VGE_ADDR_HI(y) ((u_int64_t) (y) >> 32)
#define VGE_BUFLEN(y) ((y) & 0x7FFF)
#define VGE_OWN(x) (le32toh((x)->vge_sts) & VGE_RDSTS_OWN)
#define VGE_RXBYTES(x) ((le32toh((x)->vge_sts) & \
VGE_RDSTS_BUFSIZ) >> 16)
#define VGE_MIN_FRAMELEN 60
#ifdef VGE_FIXUP_RX
#define VGE_ETHER_ALIGN sizeof(uint32_t)
#else
#define VGE_ETHER_ALIGN 0
#endif
struct vge_type {
uint16_t vge_vid;
uint16_t vge_did;
char *vge_name;
};
struct vge_softc;
struct vge_dmaload_arg {
struct vge_softc *sc;
int vge_idx;
int vge_maxsegs;
struct mbuf *vge_m0;
u_int32_t vge_flags;
};
struct vge_list_data {
struct mbuf *vge_tx_mbuf[VGE_TX_DESC_CNT];
struct mbuf *vge_rx_mbuf[VGE_RX_DESC_CNT];
int vge_tx_prodidx;
int vge_rx_prodidx;
int vge_tx_considx;
int vge_tx_free;
bus_dmamap_t vge_tx_dmamap[VGE_TX_DESC_CNT];
bus_dmamap_t vge_rx_dmamap[VGE_RX_DESC_CNT];
bus_dma_tag_t vge_mtag; /* mbuf mapping tag */
bus_dma_tag_t vge_rx_list_tag;
bus_dmamap_t vge_rx_list_map;
struct vge_rx_desc *vge_rx_list;
bus_addr_t vge_rx_list_addr;
bus_dma_tag_t vge_tx_list_tag;
bus_dmamap_t vge_tx_list_map;
struct vge_tx_desc *vge_tx_list;
bus_addr_t vge_tx_list_addr;
};
struct vge_softc {
struct ifnet *vge_ifp; /* interface info */
device_t vge_dev;
bus_space_handle_t vge_bhandle; /* bus space handle */
bus_space_tag_t vge_btag; /* bus space tag */
struct resource *vge_res;
struct resource *vge_irq;
void *vge_intrhand;
device_t vge_miibus;
bus_dma_tag_t vge_parent_tag;
bus_dma_tag_t vge_tag;
u_int8_t vge_unit; /* interface number */
u_int8_t vge_type;
int vge_if_flags;
int vge_rx_consumed;
int vge_link;
int vge_camidx;
struct task vge_txtask;
struct mtx vge_mtx;
struct mbuf *vge_head;
struct mbuf *vge_tail;
struct vge_list_data vge_ldata;
int suspended; /* 0 = normal 1 = suspended */
#ifdef DEVICE_POLLING
int rxcycles;
#endif
};
#define VGE_LOCK(_sc) mtx_lock(&(_sc)->vge_mtx)
#define VGE_UNLOCK(_sc) mtx_unlock(&(_sc)->vge_mtx)
#define VGE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->vge_mtx, MA_OWNED)
/*
* register space access macros
*/
#define CSR_WRITE_STREAM_4(sc, reg, val) \
bus_space_write_stream_4(sc->vge_btag, sc->vge_bhandle, reg, val)
#define CSR_WRITE_4(sc, reg, val) \
bus_space_write_4(sc->vge_btag, sc->vge_bhandle, reg, val)
#define CSR_WRITE_2(sc, reg, val) \
bus_space_write_2(sc->vge_btag, sc->vge_bhandle, reg, val)
#define CSR_WRITE_1(sc, reg, val) \
bus_space_write_1(sc->vge_btag, sc->vge_bhandle, reg, val)
#define CSR_READ_4(sc, reg) \
bus_space_read_4(sc->vge_btag, sc->vge_bhandle, reg)
#define CSR_READ_2(sc, reg) \
bus_space_read_2(sc->vge_btag, sc->vge_bhandle, reg)
#define CSR_READ_1(sc, reg) \
bus_space_read_1(sc->vge_btag, sc->vge_bhandle, reg)
#define CSR_SETBIT_1(sc, reg, x) \
CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) | (x))
#define CSR_SETBIT_2(sc, reg, x) \
CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) | (x))
#define CSR_SETBIT_4(sc, reg, x) \
CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | (x))
#define CSR_CLRBIT_1(sc, reg, x) \
CSR_WRITE_1(sc, reg, CSR_READ_1(sc, reg) & ~(x))
#define CSR_CLRBIT_2(sc, reg, x) \
CSR_WRITE_2(sc, reg, CSR_READ_2(sc, reg) & ~(x))
#define CSR_CLRBIT_4(sc, reg, x) \
CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~(x))
#define VGE_TIMEOUT 10000
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