Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/alc/if_alcvar.h
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009, Pyun YongHyeon <yongari@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _IF_ALCVAR_H 33 #define _IF_ALCVAR_H 34 35 #define ALC_TX_RING_CNT 256 36 #define ALC_TX_RING_ALIGN sizeof(struct tx_desc) 37 #define ALC_RX_RING_CNT 256 38 #define ALC_RX_RING_ALIGN sizeof(struct rx_desc) 39 #define ALC_RX_BUF_ALIGN 4 40 #define ALC_RR_RING_CNT ALC_RX_RING_CNT 41 #define ALC_RR_RING_ALIGN sizeof(struct rx_rdesc) 42 #define ALC_CMB_ALIGN 8 43 #define ALC_SMB_ALIGN 8 44 45 #define ALC_TSO_MAXSEGSIZE 4096 46 #define ALC_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header)) 47 #define ALC_MAXTXSEGS 35 48 49 #define ALC_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF) 50 #define ALC_ADDR_HI(x) ((uint64_t) (x) >> 32) 51 52 #define ALC_DESC_INC(x, y) ((x) = ((x) + 1) % (y)) 53 54 /* Water mark to kick reclaiming Tx buffers. */ 55 #define ALC_TX_DESC_HIWAT ((ALC_TX_RING_CNT * 6) / 10) 56 57 /* 58 * AR816x controllers support up to 16 messages but this driver 59 * uses single message. 60 */ 61 #define ALC_MSI_MESSAGES 1 62 #define ALC_MSIX_MESSAGES 1 63 64 #define ALC_TX_RING_SZ \ 65 (sizeof(struct tx_desc) * ALC_TX_RING_CNT) 66 #define ALC_RX_RING_SZ \ 67 (sizeof(struct rx_desc) * ALC_RX_RING_CNT) 68 #define ALC_RR_RING_SZ \ 69 (sizeof(struct rx_rdesc) * ALC_RR_RING_CNT) 70 #define ALC_CMB_SZ (sizeof(struct cmb)) 71 #define ALC_SMB_SZ (sizeof(struct smb)) 72 73 #define ALC_PROC_MIN 16 74 #define ALC_PROC_MAX (ALC_RX_RING_CNT - 1) 75 #define ALC_PROC_DEFAULT (ALC_RX_RING_CNT / 4) 76 77 /* 78 * The number of bits reserved for MSS in AR813x/AR815x controllers 79 * are 13 bits. This limits the maximum interface MTU size in TSO 80 * case(8191 + sizeof(struct ip) + sizeof(struct tcphdr)) as upper 81 * stack should not generate TCP segments with MSS greater than the 82 * limit. Also Atheros says that maximum MTU for TSO is 6KB. 83 */ 84 #define ALC_TSO_MTU (6 * 1024) 85 86 struct alc_rxdesc { 87 struct mbuf *rx_m; 88 bus_dmamap_t rx_dmamap; 89 struct rx_desc *rx_desc; 90 }; 91 92 struct alc_txdesc { 93 struct mbuf *tx_m; 94 bus_dmamap_t tx_dmamap; 95 }; 96 97 struct alc_ring_data { 98 struct tx_desc *alc_tx_ring; 99 bus_addr_t alc_tx_ring_paddr; 100 struct rx_desc *alc_rx_ring; 101 bus_addr_t alc_rx_ring_paddr; 102 struct rx_rdesc *alc_rr_ring; 103 bus_addr_t alc_rr_ring_paddr; 104 struct cmb *alc_cmb; 105 bus_addr_t alc_cmb_paddr; 106 struct smb *alc_smb; 107 bus_addr_t alc_smb_paddr; 108 }; 109 110 struct alc_chain_data { 111 bus_dma_tag_t alc_parent_tag; 112 bus_dma_tag_t alc_buffer_tag; 113 bus_dma_tag_t alc_tx_tag; 114 struct alc_txdesc alc_txdesc[ALC_TX_RING_CNT]; 115 bus_dma_tag_t alc_rx_tag; 116 struct alc_rxdesc alc_rxdesc[ALC_RX_RING_CNT]; 117 bus_dma_tag_t alc_tx_ring_tag; 118 bus_dmamap_t alc_tx_ring_map; 119 bus_dma_tag_t alc_rx_ring_tag; 120 bus_dmamap_t alc_rx_ring_map; 121 bus_dma_tag_t alc_rr_ring_tag; 122 bus_dmamap_t alc_rr_ring_map; 123 bus_dmamap_t alc_rx_sparemap; 124 bus_dma_tag_t alc_cmb_tag; 125 bus_dmamap_t alc_cmb_map; 126 bus_dma_tag_t alc_smb_tag; 127 bus_dmamap_t alc_smb_map; 128 129 int alc_tx_prod; 130 int alc_tx_cons; 131 int alc_tx_cnt; 132 int alc_rx_cons; 133 int alc_rr_cons; 134 int alc_rxlen; 135 136 struct mbuf *alc_rxhead; 137 struct mbuf *alc_rxtail; 138 struct mbuf *alc_rxprev_tail; 139 }; 140 141 struct alc_hw_stats { 142 /* Rx stats. */ 143 uint32_t rx_frames; 144 uint32_t rx_bcast_frames; 145 uint32_t rx_mcast_frames; 146 uint32_t rx_pause_frames; 147 uint32_t rx_control_frames; 148 uint32_t rx_crcerrs; 149 uint32_t rx_lenerrs; 150 uint64_t rx_bytes; 151 uint32_t rx_runts; 152 uint32_t rx_fragments; 153 uint32_t rx_pkts_64; 154 uint32_t rx_pkts_65_127; 155 uint32_t rx_pkts_128_255; 156 uint32_t rx_pkts_256_511; 157 uint32_t rx_pkts_512_1023; 158 uint32_t rx_pkts_1024_1518; 159 uint32_t rx_pkts_1519_max; 160 uint32_t rx_pkts_truncated; 161 uint32_t rx_fifo_oflows; 162 uint32_t rx_rrs_errs; 163 uint32_t rx_alignerrs; 164 uint64_t rx_bcast_bytes; 165 uint64_t rx_mcast_bytes; 166 uint32_t rx_pkts_filtered; 167 /* Tx stats. */ 168 uint32_t tx_frames; 169 uint32_t tx_bcast_frames; 170 uint32_t tx_mcast_frames; 171 uint32_t tx_pause_frames; 172 uint32_t tx_excess_defer; 173 uint32_t tx_control_frames; 174 uint32_t tx_deferred; 175 uint64_t tx_bytes; 176 uint32_t tx_pkts_64; 177 uint32_t tx_pkts_65_127; 178 uint32_t tx_pkts_128_255; 179 uint32_t tx_pkts_256_511; 180 uint32_t tx_pkts_512_1023; 181 uint32_t tx_pkts_1024_1518; 182 uint32_t tx_pkts_1519_max; 183 uint32_t tx_single_colls; 184 uint32_t tx_multi_colls; 185 uint32_t tx_late_colls; 186 uint32_t tx_excess_colls; 187 uint32_t tx_abort; 188 uint32_t tx_underrun; 189 uint32_t tx_desc_underrun; 190 uint32_t tx_lenerrs; 191 uint32_t tx_pkts_truncated; 192 uint64_t tx_bcast_bytes; 193 uint64_t tx_mcast_bytes; 194 }; 195 196 struct alc_ident { 197 uint16_t vendorid; 198 uint16_t deviceid; 199 uint32_t max_framelen; 200 const char *name; 201 }; 202 203 /* 204 * Software state per device. 205 */ 206 struct alc_softc { 207 struct ifnet *alc_ifp; 208 device_t alc_dev; 209 device_t alc_miibus; 210 struct resource *alc_res[1]; 211 struct resource_spec *alc_res_spec; 212 struct resource *alc_irq[ALC_MSI_MESSAGES]; 213 struct resource_spec *alc_irq_spec; 214 void *alc_intrhand[ALC_MSI_MESSAGES]; 215 struct alc_ident *alc_ident; 216 int alc_rev; 217 int alc_chip_rev; 218 int alc_phyaddr; 219 uint8_t alc_eaddr[ETHER_ADDR_LEN]; 220 uint32_t alc_dma_rd_burst; 221 uint32_t alc_dma_wr_burst; 222 uint32_t alc_rcb; 223 int alc_expcap; 224 int alc_pmcap; 225 int alc_flags; 226 #define ALC_FLAG_PCIE 0x0001 227 #define ALC_FLAG_PCIX 0x0002 228 #define ALC_FLAG_MSI 0x0004 229 #define ALC_FLAG_MSIX 0x0008 230 #define ALC_FLAG_PM 0x0010 231 #define ALC_FLAG_FASTETHER 0x0020 232 #define ALC_FLAG_JUMBO 0x0040 233 #define ALC_FLAG_CMB_BUG 0x0100 234 #define ALC_FLAG_SMB_BUG 0x0200 235 #define ALC_FLAG_L0S 0x0400 236 #define ALC_FLAG_L1S 0x0800 237 #define ALC_FLAG_APS 0x1000 238 #define ALC_FLAG_AR816X_FAMILY 0x2000 239 #define ALC_FLAG_LINK_WAR 0x4000 240 #define ALC_FLAG_E2X00 0x8000 241 #define ALC_FLAG_LINK 0x10000 242 #define ALC_FLAG_MT 0x20000 243 244 struct callout alc_tick_ch; 245 struct alc_hw_stats alc_stats; 246 struct alc_chain_data alc_cdata; 247 struct alc_ring_data alc_rdata; 248 int alc_if_flags; 249 int alc_watchdog_timer; 250 int alc_process_limit; 251 volatile int alc_morework; 252 int alc_int_rx_mod; 253 int alc_int_tx_mod; 254 int alc_buf_size; 255 256 struct task alc_int_task; 257 struct taskqueue *alc_tq; 258 struct mtx alc_mtx; 259 }; 260 261 /* Register access macros. */ 262 #define CSR_WRITE_4(_sc, reg, val) \ 263 bus_write_4((_sc)->alc_res[0], (reg), (val)) 264 #define CSR_WRITE_2(_sc, reg, val) \ 265 bus_write_2((_sc)->alc_res[0], (reg), (val)) 266 #define CSR_WRITE_1(_sc, reg, val) \ 267 bus_write_1((_sc)->alc_res[0], (reg), (val)) 268 #define CSR_READ_2(_sc, reg) \ 269 bus_read_2((_sc)->alc_res[0], (reg)) 270 #define CSR_READ_4(_sc, reg) \ 271 bus_read_4((_sc)->alc_res[0], (reg)) 272 273 #define ALC_RXCHAIN_RESET(_sc) \ 274 do { \ 275 (_sc)->alc_cdata.alc_rxhead = NULL; \ 276 (_sc)->alc_cdata.alc_rxtail = NULL; \ 277 (_sc)->alc_cdata.alc_rxprev_tail = NULL; \ 278 (_sc)->alc_cdata.alc_rxlen = 0; \ 279 } while (0) 280 281 #define ALC_LOCK(_sc) mtx_lock(&(_sc)->alc_mtx) 282 #define ALC_UNLOCK(_sc) mtx_unlock(&(_sc)->alc_mtx) 283 #define ALC_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->alc_mtx, MA_OWNED) 284 285 #define ALC_TX_TIMEOUT 5 286 #define ALC_RESET_TIMEOUT 100 287 #define ALC_TIMEOUT 1000 288 #define ALC_PHY_TIMEOUT 10000 289 290 #endif /* _IF_ALCVAR_H */
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