2 * Copyright (c) 2009, Pyun YongHyeon <yongari@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/alc/if_alcvar.h,v 1.1 2009/06/10 02:07:58 yongari Exp $
34 #define ALC_TX_RING_CNT 256
35 #define ALC_TX_RING_ALIGN sizeof(struct tx_desc)
36 #define ALC_RX_RING_CNT 256
37 #define ALC_RX_RING_ALIGN sizeof(struct rx_desc)
38 #define ALC_RX_BUF_ALIGN 4
39 #define ALC_RR_RING_CNT ALC_RX_RING_CNT
40 #define ALC_RR_RING_ALIGN sizeof(struct rx_rdesc)
41 #define ALC_CMB_ALIGN 8
42 #define ALC_SMB_ALIGN 8
44 #define ALC_TSO_MAXSEGSIZE 4096
45 #define ALC_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header))
46 #define ALC_MAXTXSEGS 32
48 #define ALC_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF)
49 #define ALC_ADDR_HI(x) ((uint64_t) (x) >> 32)
51 #define ALC_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
53 /* Water mark to kick reclaiming Tx buffers. */
54 #define ALC_TX_DESC_HIWAT ((ALC_TX_RING_CNT * 6) / 10)
56 #define ALC_MSI_MESSAGES 1
57 #define ALC_MSIX_MESSAGES 1
59 #define ALC_TX_RING_SZ \
60 (sizeof(struct tx_desc) * ALC_TX_RING_CNT)
61 #define ALC_RX_RING_SZ \
62 (sizeof(struct rx_desc) * ALC_RX_RING_CNT)
63 #define ALC_RR_RING_SZ \
64 (sizeof(struct rx_rdesc) * ALC_RR_RING_CNT)
65 #define ALC_CMB_SZ (sizeof(struct cmb))
66 #define ALC_SMB_SZ (sizeof(struct smb))
68 #define ALC_PROC_MIN 16
69 #define ALC_PROC_MAX (ALC_RX_RING_CNT - 1)
70 #define ALC_PROC_DEFAULT (ALC_RX_RING_CNT / 4)
73 * The number of bits reserved for MSS in AR813x/AR815x controllers
74 * are 13 bits. This limits the maximum interface MTU size in TSO
75 * case(8191 + sizeof(struct ip) + sizeof(struct tcphdr)) as upper
76 * stack should not generate TCP segments with MSS greater than the
77 * limit. Also Atheros says that maximum MTU for TSO is 6KB.
79 #define ALC_TSO_MTU (6 * 1024)
93 bus_dmamap_t rx_dmamap;
94 struct rx_desc *rx_desc;
99 bus_dmamap_t tx_dmamap;
102 struct alc_ring_data {
103 struct tx_desc *alc_tx_ring;
104 bus_addr_t alc_tx_ring_paddr;
105 struct rx_desc *alc_rx_ring;
106 bus_addr_t alc_rx_ring_paddr;
107 struct rx_rdesc *alc_rr_ring;
108 bus_addr_t alc_rr_ring_paddr;
110 bus_addr_t alc_cmb_paddr;
112 bus_addr_t alc_smb_paddr;
115 struct alc_chain_data {
116 bus_dma_tag_t alc_parent_tag;
117 bus_dma_tag_t alc_buffer_tag;
118 bus_dma_tag_t alc_tx_tag;
119 struct alc_txdesc alc_txdesc[ALC_TX_RING_CNT];
120 bus_dma_tag_t alc_rx_tag;
121 struct alc_rxdesc alc_rxdesc[ALC_RX_RING_CNT];
122 bus_dma_tag_t alc_tx_ring_tag;
123 bus_dmamap_t alc_tx_ring_map;
124 bus_dma_tag_t alc_rx_ring_tag;
125 bus_dmamap_t alc_rx_ring_map;
126 bus_dma_tag_t alc_rr_ring_tag;
127 bus_dmamap_t alc_rr_ring_map;
128 bus_dmamap_t alc_rx_sparemap;
129 bus_dma_tag_t alc_cmb_tag;
130 bus_dmamap_t alc_cmb_map;
131 bus_dma_tag_t alc_smb_tag;
132 bus_dmamap_t alc_smb_map;
141 struct mbuf *alc_rxhead;
142 struct mbuf *alc_rxtail;
143 struct mbuf *alc_rxprev_tail;
146 struct alc_hw_stats {
149 uint32_t rx_bcast_frames;
150 uint32_t rx_mcast_frames;
151 uint32_t rx_pause_frames;
152 uint32_t rx_control_frames;
157 uint32_t rx_fragments;
159 uint32_t rx_pkts_65_127;
160 uint32_t rx_pkts_128_255;
161 uint32_t rx_pkts_256_511;
162 uint32_t rx_pkts_512_1023;
163 uint32_t rx_pkts_1024_1518;
164 uint32_t rx_pkts_1519_max;
165 uint32_t rx_pkts_truncated;
166 uint32_t rx_fifo_oflows;
167 uint32_t rx_rrs_errs;
168 uint32_t rx_alignerrs;
169 uint64_t rx_bcast_bytes;
170 uint64_t rx_mcast_bytes;
171 uint32_t rx_pkts_filtered;
174 uint32_t tx_bcast_frames;
175 uint32_t tx_mcast_frames;
176 uint32_t tx_pause_frames;
177 uint32_t tx_excess_defer;
178 uint32_t tx_control_frames;
179 uint32_t tx_deferred;
182 uint32_t tx_pkts_65_127;
183 uint32_t tx_pkts_128_255;
184 uint32_t tx_pkts_256_511;
185 uint32_t tx_pkts_512_1023;
186 uint32_t tx_pkts_1024_1518;
187 uint32_t tx_pkts_1519_max;
188 uint32_t tx_single_colls;
189 uint32_t tx_multi_colls;
190 uint32_t tx_late_colls;
191 uint32_t tx_excess_colls;
193 uint32_t tx_underrun;
194 uint32_t tx_desc_underrun;
196 uint32_t tx_pkts_truncated;
197 uint64_t tx_bcast_bytes;
198 uint64_t tx_mcast_bytes;
204 uint32_t max_framelen;
209 * Software state per device.
212 struct arpcom arpcom;
213 struct ifnet *alc_ifp; /* points to arpcom.ac_if */
216 struct resource *alc_res[1];
217 struct resource_spec *alc_res_spec;
218 struct resource *alc_irq[ALC_MSI_MESSAGES];
219 struct resource_spec *alc_irq_spec;
220 void *alc_intrhand[ALC_MSI_MESSAGES];
221 struct alc_ident *alc_ident;
225 uint8_t alc_eaddr[ETHER_ADDR_LEN];
226 uint32_t alc_dma_rd_burst;
227 uint32_t alc_dma_wr_burst;
232 #define ALC_FLAG_PCIE 0x0001
233 #define ALC_FLAG_PCIX 0x0002
234 #define ALC_FLAG_MSI 0x0004
235 #define ALC_FLAG_MSIX 0x0008
236 #define ALC_FLAG_PM 0x0010
237 #define ALC_FLAG_FASTETHER 0x0020
238 #define ALC_FLAG_JUMBO 0x0040
239 #define ALC_FLAG_ASPM_MON 0x0080
240 #define ALC_FLAG_CMB_BUG 0x0100
241 #define ALC_FLAG_SMB_BUG 0x0200
242 #define ALC_FLAG_L0S 0x0400
243 #define ALC_FLAG_L1S 0x0800
244 #define ALC_FLAG_APS 0x1000
245 #define ALC_FLAG_DETACH 0x4000
246 #define ALC_FLAG_LINK 0x8000
248 struct callout alc_tick_ch;
249 struct alc_hw_stats alc_stats;
250 struct alc_chain_data alc_cdata;
251 struct alc_ring_data alc_rdata;
253 int alc_watchdog_timer;
254 int alc_process_limit;
255 volatile int alc_morework;
260 struct sysctl_ctx_list alc_sysctl_ctx;
262 struct task alc_int_task;
263 struct task alc_tx_task;
264 struct taskqueue *alc_tq;
265 struct lock alc_lock;
268 /* Register access macros. */
269 #define CSR_WRITE_4(_sc, reg, val) \
270 bus_write_4((_sc)->alc_res[0], (reg), (val))
271 #define CSR_WRITE_2(_sc, reg, val) \
272 bus_write_2((_sc)->alc_res[0], (reg), (val))
273 #define CSR_WRITE_1(_sc, reg, val) \
274 bus_write_1((_sc)->alc_res[0], (reg), (val))
275 #define CSR_READ_2(_sc, reg) \
276 bus_read_2((_sc)->alc_res[0], (reg))
277 #define CSR_READ_4(_sc, reg) \
278 bus_read_4((_sc)->alc_res[0], (reg))
280 #define ALC_RXCHAIN_RESET(_sc) \
282 (_sc)->alc_cdata.alc_rxhead = NULL; \
283 (_sc)->alc_cdata.alc_rxtail = NULL; \
284 (_sc)->alc_cdata.alc_rxprev_tail = NULL; \
285 (_sc)->alc_cdata.alc_rxlen = 0; \
288 #define ALC_LOCK(_sc) lockmgr(&(_sc)->alc_lock, LK_EXCLUSIVE)
289 #define ALC_UNLOCK(_sc) lockmgr(&(_sc)->alc_lock, LK_RELEASE)
290 #define ALC_LOCK_ASSERT(_sc) KKASSERT(lockstatus(&(_sc)->alc_lock, curthread) != 0)
292 #define ALC_TX_TIMEOUT 5
293 #define ALC_RESET_TIMEOUT 100
294 #define ALC_TIMEOUT 1000
295 #define ALC_PHY_TIMEOUT 1000
297 #endif /* _IF_ALCVAR_H */