2 * Copyright (c) 2007 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Sepherosa Ziehau <sepherosa@gmail.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38 #define ET_ALIGN 0x1000 /* XXX safest guess */
39 #define ET_NSEG_MAX 32 /* XXX no limit actually */
40 #define ET_NSEG_SPARE 8
42 #define ET_TX_NDESC 512
43 #define ET_RX_NDESC 512
45 #define ET_RX_NSTAT (ET_RX_NRING * ET_RX_NDESC)
47 #define ET_TX_RING_SIZE (ET_TX_NDESC * sizeof(struct et_txdesc))
48 #define ET_RX_RING_SIZE (ET_RX_NDESC * sizeof(struct et_rxdesc))
49 #define ET_RXSTAT_RING_SIZE (ET_RX_NSTAT * sizeof(struct et_rxstat))
51 #define ET_JUMBO_ALIGN 8
52 #define ET_JUMBO_FRAMELEN (ET_MEM_SIZE - ET_MEM_RXSIZE_MIN - \
54 #define ET_JUMBO_MTU (ET_JUMBO_FRAMELEN - ETHER_HDR_LEN - \
55 EVL_ENCAPLEN - ETHER_CRC_LEN)
57 #define ET_FRAMELEN(mtu) (ETHER_HDR_LEN + EVL_ENCAPLEN + (mtu) + \
60 #define ET_JSLOTS (ET_RX_NDESC + 128)
61 #define ET_JLEN roundup2(ET_JUMBO_FRAMELEN, ET_JUMBO_ALIGN)
62 #define ET_JUMBO_MEM_SIZE (ET_JSLOTS * ET_JLEN)
64 #define CSR_WRITE_4(sc, reg, val) \
65 bus_space_write_4((sc)->sc_mem_bt, (sc)->sc_mem_bh, (reg), (val))
66 #define CSR_READ_4(sc, reg) \
67 bus_space_read_4((sc)->sc_mem_bt, (sc)->sc_mem_bh, (reg))
69 #define ET_ADDR_HI(addr) ((uint64_t) (addr) >> 32)
70 #define ET_ADDR_LO(addr) ((uint64_t) (addr) & 0xffffffff)
75 uint32_t td_ctrl1; /* ET_TDCTRL1_ */
76 uint32_t td_ctrl2; /* ET_TDCTRL2_ */
79 #define ET_TDCTRL1_LEN __BITS(15, 0)
81 #define ET_TDCTRL2_LAST_FRAG __BIT(0)
82 #define ET_TDCTRL2_FIRST_FRAG __BIT(1)
83 #define ET_TDCTRL2_INTR __BIT(2)
88 uint32_t rd_ctrl; /* ET_RDCTRL_ */
91 #define ET_RDCTRL_BUFIDX __BITS(9, 0)
95 uint32_t rxst_info2; /* ET_RXST_INFO2_ */
98 #define ET_RXST_INFO2_LEN __BITS(15, 0)
99 #define ET_RXST_INFO2_BUFIDX __BITS(25, 16)
100 #define ET_RXST_INFO2_RINGIDX __BITS(27, 26)
104 uint32_t rxs_stat_ring; /* ET_RXS_STATRING_ */
107 #define ET_RXS_STATRING_INDEX __BITS(27, 16)
108 #define ET_RXS_STATRING_WRAP __BIT(28)
111 struct mbuf *tb_mbuf;
112 bus_dmamap_t tb_dmap;
116 struct mbuf *rb_mbuf;
117 bus_dmamap_t rb_dmap;
121 struct et_txstatus_data {
122 uint32_t *txsd_status;
123 bus_addr_t txsd_paddr;
124 bus_dma_tag_t txsd_dtag;
125 bus_dmamap_t txsd_dmap;
128 struct et_rxstatus_data {
129 struct et_rxstatus *rxsd_status;
130 bus_addr_t rxsd_paddr;
131 bus_dma_tag_t rxsd_dtag;
132 bus_dmamap_t rxsd_dmap;
135 struct et_rxstat_ring {
136 struct et_rxstat *rsr_stat;
137 bus_addr_t rsr_paddr;
138 bus_dma_tag_t rsr_dtag;
139 bus_dmamap_t rsr_dmap;
145 struct et_txdesc_ring {
146 struct et_txdesc *tr_desc;
148 bus_dma_tag_t tr_dtag;
149 bus_dmamap_t tr_dmap;
155 struct et_rxdesc_ring {
156 struct et_rxdesc *rr_desc;
158 bus_dma_tag_t rr_dtag;
159 bus_dmamap_t rr_dmap;
166 struct et_txbuf_data {
167 struct et_txbuf tbd_buf[ET_TX_NDESC];
175 struct et_rxbuf_data;
176 typedef int (*et_newbuf_t)(struct et_rxbuf_data *, int, int);
178 struct et_rxbuf_data {
179 struct et_rxbuf rbd_buf[ET_RX_NDESC];
181 struct et_softc *rbd_softc;
182 struct et_rxdesc_ring *rbd_ring;
186 et_newbuf_t rbd_newbuf;
191 struct et_jumbo_data {
192 bus_dma_tag_t jd_dtag;
193 bus_dmamap_t jd_dmap;
196 struct lwkt_serialize jd_serializer;
197 struct et_jslot *jd_slots;
198 SLIST_HEAD(, et_jslot) jd_free_slots;
202 struct et_jumbo_data *jslot_data;
204 bus_addr_t jslot_paddr;
207 SLIST_ENTRY(et_jslot) jslot_link;
211 struct arpcom arpcom;
213 uint32_t sc_flags; /* ET_FLAG_ */
216 struct resource *sc_mem_res;
217 bus_space_tag_t sc_mem_bt;
218 bus_space_handle_t sc_mem_bh;
222 struct resource *sc_irq_res;
226 struct callout sc_tick;
228 bus_dma_tag_t sc_dtag;
230 struct et_rxdesc_ring sc_rx_ring[ET_RX_NRING];
231 struct et_rxstat_ring sc_rxstat_ring;
232 struct et_rxstatus_data sc_rx_status;
234 struct et_txdesc_ring sc_tx_ring;
235 struct et_txstatus_data sc_tx_status;
237 bus_dma_tag_t sc_rxbuf_dtag;
238 bus_dmamap_t sc_rxbuf_tmp_dmap;
239 struct et_rxbuf_data sc_rx_data[ET_RX_NRING];
241 bus_dma_tag_t sc_txbuf_dtag;
242 struct et_txbuf_data sc_tx_data;
244 struct et_jumbo_data sc_jumbo_data;
252 int sc_rx_intr_npkts;
253 int sc_rx_intr_delay;
254 int sc_tx_intr_nsegs;
258 #define ET_FLAG_TXRX_ENABLED 0x1
259 #define ET_FLAG_JUMBO 0x2
261 #endif /* !_IF_ETVAR_H */