1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
|
/* $OpenBSD: if_jmevar.h,v 1.2 2008/10/20 19:36:54 brad Exp $ */
/*-
* Copyright (c) 2008, 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: src/sys/dev/jme/if_jmevar.h,v 1.1 2008/05/27 01:42:01 yongari Exp $
* $DragonFly: src/sys/dev/netif/jme/if_jmevar.h,v 1.4 2008/09/13 04:04:39 sephe Exp $
*/
#ifndef _IF_JMEVAR_H
#define _IF_JMEVAR_H
/*
* JMC250 supports upto 1024 descriptors and the number of
* descriptors should be multiple of 16.
*/
#define JME_TX_RING_CNT 384
#define JME_RX_RING_CNT 256
/*
* Tx/Rx descriptor queue base should be 16bytes aligned and
* should not cross 4G bytes boundary on the 64bits address
* mode.
*/
#define JME_TX_RING_ALIGN 16
#define JME_RX_RING_ALIGN 16
#define JME_TSO_MAXSEGSIZE 4096
#define JME_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header))
#define JME_MAXTXSEGS 32
#define JME_RX_BUF_ALIGN sizeof(uint64_t)
#define JME_SSB_ALIGN 16
#define JME_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF)
#define JME_ADDR_HI(x) ((uint64_t) (x) >> 32)
#define JME_MSI_MESSAGES 8
#define JME_MSIX_MESSAGES 8
/* Water mark to kick reclaiming Tx buffers. */
#define JME_TX_DESC_HIWAT (JME_TX_RING_CNT - (((JME_TX_RING_CNT) * 3) / 10))
/*
* JMC250 can send 9K jumbo frame on Tx path and can receive
* 65535 bytes.
*/
#define JME_JUMBO_FRAMELEN 9216
#define JME_JUMBO_MTU \
(JME_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - \
ETHER_HDR_LEN - ETHER_CRC_LEN)
#define JME_MAX_MTU \
(ETHER_MAX_LEN + sizeof(struct ether_vlan_header) - \
ETHER_HDR_LEN - ETHER_CRC_LEN)
/*
* JMC250 can't handle Tx checksum offload/TSO if frame length
* is larger than its FIFO size(2K). It's also good idea to not
* use jumbo frame if hardware is running at half-duplex media.
* Because the jumbo frame may not fit into the Tx FIFO,
* collisions make hardware fetch frame from host memory with
* DMA again which in turn slows down Tx performance
* significantly.
*/
#define JME_TX_FIFO_SIZE 2000
/*
* JMC250 has just 4K Rx FIFO. To support jumbo frame that is
* larger than 4K bytes in length, Rx FIFO threshold should be
* adjusted to minimize Rx FIFO overrun.
*/
#define JME_RX_FIFO_SIZE 4000
#define JME_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
#define JME_PROC_MIN 10
#define JME_PROC_DEFAULT (JME_RX_RING_CNT / 2)
#define JME_PROC_MAX (JME_RX_RING_CNT - 1)
struct jme_txdesc {
struct mbuf *tx_m;
bus_dmamap_t tx_dmamap;
int tx_ndesc;
struct jme_desc *tx_desc;
};
struct jme_rxdesc {
struct mbuf *rx_m;
bus_dmamap_t rx_dmamap;
struct jme_desc *rx_desc;
};
struct jme_chain_data{
bus_dma_tag_t jme_ring_tag;
bus_dma_tag_t jme_buffer_tag;
bus_dma_tag_t jme_ssb_tag;
bus_dmamap_t jme_ssb_map;
bus_dma_tag_t jme_tx_tag;
struct jme_txdesc jme_txdesc[JME_TX_RING_CNT];
bus_dma_tag_t jme_rx_tag;
struct jme_rxdesc jme_rxdesc[JME_RX_RING_CNT];
bus_dmamap_t jme_tx_ring_map;
bus_dma_segment_t jme_tx_ring_seg;
bus_dmamap_t jme_rx_ring_map;
bus_dma_segment_t jme_rx_ring_seg;
bus_dmamap_t jme_rx_sparemap;
int jme_tx_prod;
int jme_tx_cons;
int jme_tx_cnt;
int jme_rx_cons;
int jme_rxlen;
struct mbuf *jme_rxhead;
struct mbuf *jme_rxtail;
};
struct jme_ring_data {
struct jme_desc *jme_tx_ring;
bus_dma_segment_t jme_tx_ring_seg;
bus_addr_t jme_tx_ring_paddr;
struct jme_desc *jme_rx_ring;
bus_dma_segment_t jme_rx_ring_seg;
bus_addr_t jme_rx_ring_paddr;
struct jme_ssb *jme_ssb_block;
bus_dma_segment_t jme_ssb_block_seg;
bus_addr_t jme_ssb_block_paddr;
};
#define JME_TX_RING_ADDR(sc, i) \
((sc)->jme_rdata.jme_tx_ring_paddr + sizeof(struct jme_desc) * (i))
#define JME_RX_RING_ADDR(sc, i) \
((sc)->jme_rdata.jme_rx_ring_paddr + sizeof(struct jme_desc) * (i))
#define JME_TX_RING_SIZE \
(sizeof(struct jme_desc) * JME_TX_RING_CNT)
#define JME_RX_RING_SIZE \
(sizeof(struct jme_desc) * JME_RX_RING_CNT)
#define JME_SSB_SIZE sizeof(struct jme_ssb)
struct jme_dmamap_ctx {
int nsegs;
bus_dma_segment_t *segs;
};
/*
* Software state per device.
*/
struct jme_softc {
struct device sc_dev;
struct arpcom sc_arpcom;
int jme_mem_rid;
struct resource *jme_mem_res;
bus_space_tag_t jme_mem_bt;
bus_space_handle_t jme_mem_bh;
bus_size_t jme_mem_size;
bus_dma_tag_t sc_dmat;
pci_chipset_tag_t jme_pct;
pcitag_t jme_pcitag;
int jme_irq_rid;
struct resource *jme_irq_res;
void *sc_irq_handle;
struct mii_data sc_miibus;
int jme_phyaddr;
uint32_t jme_tx_dma_size;
uint32_t jme_rx_dma_size;
uint32_t jme_caps;
#define JME_CAP_FPGA 0x0001
#define JME_CAP_PCIE 0x0002
#define JME_CAP_PMCAP 0x0004
#define JME_CAP_FASTETH 0x0008
#define JME_CAP_JUMBO 0x0010
#define JME_CAP_EXTFIFO 0x0020
uint32_t jme_flags;
#define JME_FLAG_MSI 0x0001
#define JME_FLAG_MSIX 0x0002
#define JME_FLAG_DETACH 0x0004
#define JME_FLAG_LINK 0x0008
struct timeout jme_tick_ch;
struct jme_chain_data jme_cdata;
struct jme_ring_data jme_rdata;
uint32_t jme_txcsr;
uint32_t jme_rxcsr;
int jme_txd_spare;
/*
* Sysctl variables
*/
int jme_process_limit;
int jme_tx_coal_to;
int jme_tx_coal_pkt;
int jme_rx_coal_to;
int jme_rx_coal_pkt;
};
/* Register access macros. */
#define CSR_WRITE_4(_sc, reg, val) \
bus_space_write_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg), (val))
#define CSR_READ_4(_sc, reg) \
bus_space_read_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg))
#define JME_MAXERR 5
#define JME_RXCHAIN_RESET(_sc) \
do { \
(_sc)->jme_cdata.jme_rxhead = NULL; \
(_sc)->jme_cdata.jme_rxtail = NULL; \
(_sc)->jme_cdata.jme_rxlen = 0; \
} while (0)
#define JME_TX_TIMEOUT 5
#define JME_TIMEOUT 1000
#define JME_PHY_TIMEOUT 1000
#define JME_EEPROM_TIMEOUT 1000
#define JME_TXD_RSVD 1
#endif
|
