/*- * Copyright (c) 2007 The DragonFly Project. All rights reserved. * * This code is derived from software contributed to The DragonFly Project * by Sepherosa Ziehau * * 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. Neither the name of The DragonFly Project nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific, prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 * COPYRIGHT HOLDERS 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. * * $DragonFly: src/sys/dev/netif/et/if_etvar.h,v 1.4 2007/10/23 14:28:42 sephe Exp $ * $FreeBSD: head/sys/dev/et/if_etvar.h 179895 2008-06-20 19:28:33Z delphij $ */ #ifndef _IF_ETVAR_H #define _IF_ETVAR_H /* DragonFly compatibility */ #define EVL_ENCAPLEN ETHER_VLAN_ENCAP_LEN /* * Allocate the right type of mbuf for the desired total length. */ static __inline struct mbuf * m_getl(int len, int how, int type, int flags, int *psize) { struct mbuf *m; int size; if (len >= MINCLSIZE) { m = m_getcl(how, type, flags); size = MCLBYTES; } else if (flags & M_PKTHDR) { m = m_gethdr(how, type); size = MHLEN; } else { m = m_get(how, type); size = MLEN; } if (psize != NULL) *psize = size; return (m); } #define ET_ALIGN 0x1000 #define ET_NSEG_MAX 32 /* XXX no limit actually */ #define ET_NSEG_SPARE 8 #define ET_TX_NDESC 512 #define ET_RX_NDESC 512 #define ET_RX_NRING 2 #define ET_RX_NSTAT (ET_RX_NRING * ET_RX_NDESC) #define ET_TX_RING_SIZE (ET_TX_NDESC * sizeof(struct et_txdesc)) #define ET_RX_RING_SIZE (ET_RX_NDESC * sizeof(struct et_rxdesc)) #define ET_RXSTAT_RING_SIZE (ET_RX_NSTAT * sizeof(struct et_rxstat)) #define ET_JUMBO_FRAMELEN (ET_MEM_SIZE - ET_MEM_RXSIZE_MIN - \ ET_MEM_TXSIZE_EX) #define ET_JUMBO_MTU (ET_JUMBO_FRAMELEN - ETHER_HDR_LEN - \ EVL_ENCAPLEN - ETHER_CRC_LEN) #define ET_FRAMELEN(mtu) (ETHER_HDR_LEN + EVL_ENCAPLEN + (mtu) + \ ETHER_CRC_LEN) #define ET_JSLOTS (ET_RX_NDESC + 128) #define ET_JLEN (ET_JUMBO_FRAMELEN + ETHER_ALIGN) #define ET_JUMBO_MEM_SIZE (ET_JSLOTS * ET_JLEN) #define CSR_WRITE_4(sc, reg, val) \ bus_space_write_4((sc)->sc_mem_bt, (sc)->sc_mem_bh, (reg), (val)) #define CSR_READ_4(sc, reg) \ bus_space_read_4((sc)->sc_mem_bt, (sc)->sc_mem_bh, (reg)) #define ET_ADDR_HI(addr) ((uint64_t) (addr) >> 32) #define ET_ADDR_LO(addr) ((uint64_t) (addr) & 0xffffffff) struct et_txdesc { uint32_t td_addr_hi; uint32_t td_addr_lo; uint32_t td_ctrl1; /* ET_TDCTRL1_ */ uint32_t td_ctrl2; /* ET_TDCTRL2_ */ } __packed; #define ET_TDCTRL1_LEN __BITS(15, 0) #define ET_TDCTRL2_LAST_FRAG __BIT(0) #define ET_TDCTRL2_FIRST_FRAG __BIT(1) #define ET_TDCTRL2_INTR __BIT(2) struct et_rxdesc { uint32_t rd_addr_lo; uint32_t rd_addr_hi; uint32_t rd_ctrl; /* ET_RDCTRL_ */ } __packed; #define ET_RDCTRL_BUFIDX __BITS(9, 0) struct et_rxstat { uint32_t rxst_info1; uint32_t rxst_info2; /* ET_RXST_INFO2_ */ } __packed; #define ET_RXST_INFO2_LEN __BITS(15, 0) #define ET_RXST_INFO2_BUFIDX __BITS(25, 16) #define ET_RXST_INFO2_RINGIDX __BITS(27, 26) struct et_rxstatus { uint32_t rxs_ring; uint32_t rxs_stat_ring; /* ET_RXS_STATRING_ */ } __packed; #define ET_RXS_STATRING_INDEX __BITS(27, 16) #define ET_RXS_STATRING_WRAP __BIT(28) struct et_dmamap_ctx { int nsegs; bus_dma_segment_t *segs; }; struct et_txbuf { struct mbuf *tb_mbuf; bus_dmamap_t tb_dmap; }; struct et_rxbuf { struct mbuf *rb_mbuf; bus_dmamap_t rb_dmap; bus_addr_t rb_paddr; }; struct et_txstatus_data { uint32_t *txsd_status; bus_addr_t txsd_paddr; bus_dma_tag_t txsd_dtag; bus_dmamap_t txsd_dmap; }; struct et_rxstatus_data { struct et_rxstatus *rxsd_status; bus_addr_t rxsd_paddr; bus_dma_tag_t rxsd_dtag; bus_dmamap_t rxsd_dmap; }; struct et_rxstat_ring { struct et_rxstat *rsr_stat; bus_addr_t rsr_paddr; bus_dma_tag_t rsr_dtag; bus_dmamap_t rsr_dmap; int rsr_index; int rsr_wrap; }; struct et_txdesc_ring { struct et_txdesc *tr_desc; bus_addr_t tr_paddr; bus_dma_tag_t tr_dtag; bus_dmamap_t tr_dmap; int tr_ready_index; int tr_ready_wrap; }; struct et_rxdesc_ring { struct et_rxdesc *rr_desc; bus_addr_t rr_paddr; bus_dma_tag_t rr_dtag; bus_dmamap_t rr_dmap; uint32_t rr_posreg; int rr_index; int rr_wrap; }; struct et_txbuf_data { struct et_txbuf tbd_buf[ET_TX_NDESC]; int tbd_start_index; int tbd_start_wrap; int tbd_used; }; struct et_softc; struct et_rxbuf_data; typedef int (*et_newbuf_t)(struct et_rxbuf_data *, int, int); struct et_rxbuf_data { struct et_rxbuf rbd_buf[ET_RX_NDESC]; struct et_softc *rbd_softc; struct et_rxdesc_ring *rbd_ring; int rbd_bufsize; et_newbuf_t rbd_newbuf; }; struct et_softc { struct ifnet *ifp; device_t dev; struct mtx sc_mtx; device_t sc_miibus; bus_space_handle_t sc_mem_bh; bus_space_tag_t sc_mem_bt; void *sc_irq_handle; struct resource *sc_irq_res; struct resource *sc_mem_res; struct arpcom arpcom; int sc_if_flags; uint32_t sc_flags; /* ET_FLAG_ */ int sc_mem_rid; int sc_irq_rid; struct callout sc_tick; int watchdog_timer; bus_dma_tag_t sc_dtag; struct et_rxdesc_ring sc_rx_ring[ET_RX_NRING]; struct et_rxstat_ring sc_rxstat_ring; struct et_rxstatus_data sc_rx_status; struct et_txdesc_ring sc_tx_ring; struct et_txstatus_data sc_tx_status; bus_dma_tag_t sc_mbuf_dtag; bus_dmamap_t sc_mbuf_tmp_dmap; struct et_rxbuf_data sc_rx_data[ET_RX_NRING]; struct et_txbuf_data sc_tx_data; uint32_t sc_tx; uint32_t sc_tx_intr; /* * Sysctl variables */ int sc_rx_intr_npkts; int sc_rx_intr_delay; int sc_tx_intr_nsegs; uint32_t sc_timer; }; #define ET_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) #define ET_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) #define ET_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED) #define ET_FLAG_TXRX_ENABLED 0x1 #define ET_FLAG_JUMBO 0x2 #endif /* !_IF_ETVAR_H */