1 /*- 2 * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice unmodified, this list of conditions, and the following 10 * disclaimer. 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. 14 * 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 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: src/sys/dev/jme/if_jmevar.h,v 1.1 2008/05/27 01:42:01 yongari Exp $ 28 * $DragonFly: src/sys/dev/netif/jme/if_jmevar.h,v 1.8 2008/11/26 11:55:18 sephe Exp $ 29 */ 30 31 #ifndef _IF_JMEVAR_H 32 #define _IF_JMEVAR_H 33 34 #include <sys/queue.h> 35 #include <sys/callout.h> 36 #include <sys/taskqueue.h> 37 38 /* 39 * JMC250 supports upto JME_NDESC_MAX descriptors and the number of 40 * descriptors should be multiple of JME_NDESC_ALIGN. 41 */ 42 #define JME_TX_DESC_CNT_DEF 512 43 #define JME_RX_DESC_CNT_DEF 512 44 45 #define JME_NDESC_ALIGN 16 46 #define JME_NDESC_MAX 1024 47 48 #define JME_NRXRING_1 1 49 #define JME_NRXRING_2 2 50 #define JME_NRXRING_4 4 51 52 #define JME_NRXRING_MIN JME_NRXRING_1 53 #define JME_NRXRING_MAX JME_NRXRING_4 54 55 #define JME_NSERIALIZE (JME_NRXRING_MAX + 2) 56 57 #define JME_NMSIX (JME_NRXRING_MAX + 1) 58 59 /* 60 * Tx/Rx descriptor queue base should be 16bytes aligned and 61 * should not cross 4G bytes boundary on the 64bits address 62 * mode. 63 */ 64 #define JME_TX_RING_ALIGN __VM_CACHELINE_SIZE 65 #define JME_RX_RING_ALIGN __VM_CACHELINE_SIZE 66 #define JME_MAXSEGSIZE 4096 67 #define JME_TSO_MAXSIZE (IP_MAXPACKET + sizeof(struct ether_vlan_header)) 68 #define JME_MAXTXSEGS 40 69 #define JME_RX_BUF_ALIGN sizeof(uint64_t) 70 #define JME_SSB_ALIGN __VM_CACHELINE_SIZE 71 72 #if (BUS_SPACE_MAXADDR != BUS_SPACE_MAXADDR_32BIT) 73 #define JME_RING_BOUNDARY 0x100000000ULL 74 #else 75 #define JME_RING_BOUNDARY 0 76 #endif 77 78 #define JME_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF) 79 #define JME_ADDR_HI(x) ((uint64_t) (x) >> 32) 80 81 /* Water mark to kick reclaiming Tx buffers. */ 82 #define JME_TX_DESC_HIWAT(sc) \ 83 ((sc)->jme_cdata.jme_tx_desc_cnt - \ 84 (((sc)->jme_cdata.jme_tx_desc_cnt * 3) / 10)) 85 86 /* 87 * JMC250 can send 9K jumbo frame on Tx path and can receive 88 * 65535 bytes. 89 */ 90 #define JME_JUMBO_FRAMELEN 9216 91 #define JME_JUMBO_MTU \ 92 (JME_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - \ 93 ETHER_HDR_LEN - ETHER_CRC_LEN) 94 #define JME_MAX_MTU \ 95 (ETHER_MAX_LEN + sizeof(struct ether_vlan_header) - \ 96 ETHER_HDR_LEN - ETHER_CRC_LEN) 97 /* 98 * JMC250 can't handle Tx checksum offload/TSO if frame length 99 * is larger than its FIFO size(2K). It's also good idea to not 100 * use jumbo frame if hardware is running at half-duplex media. 101 * Because the jumbo frame may not fit into the Tx FIFO, 102 * collisions make hardware fetch frame from host memory with 103 * DMA again which in turn slows down Tx performance 104 * significantly. 105 */ 106 #define JME_TX_FIFO_SIZE 2000 107 /* 108 * JMC250 has just 4K Rx FIFO. To support jumbo frame that is 109 * larger than 4K bytes in length, Rx FIFO threshold should be 110 * adjusted to minimize Rx FIFO overrun. 111 */ 112 #define JME_RX_FIFO_SIZE 4000 113 114 #define JME_DESC_INC(x, y) ((x) = ((x) + 1) % (y)) 115 #define JME_DESC_ADD(x, d, y) ((x) = ((x) + (d)) % (y)) 116 117 struct jme_txdesc { 118 struct mbuf *tx_m; 119 bus_dmamap_t tx_dmamap; 120 int tx_ndesc; 121 struct jme_desc *tx_desc; 122 }; 123 124 struct jme_rxdesc { 125 struct mbuf *rx_m; 126 bus_addr_t rx_paddr; 127 bus_dmamap_t rx_dmamap; 128 struct jme_desc *rx_desc; 129 }; 130 131 struct jme_softc; 132 133 /* 134 * RX ring/descs 135 */ 136 struct jme_rxdata { 137 struct lwkt_serialize jme_rx_serialize; 138 struct jme_softc *jme_sc; 139 140 uint32_t jme_rx_coal; 141 uint32_t jme_rx_comp; 142 uint32_t jme_rx_empty; 143 int jme_rx_idx; 144 145 bus_dma_tag_t jme_rx_tag; /* RX mbuf tag */ 146 bus_dmamap_t jme_rx_sparemap; 147 struct jme_rxdesc *jme_rxdesc; 148 149 struct jme_desc *jme_rx_ring; 150 bus_addr_t jme_rx_ring_paddr; 151 bus_dma_tag_t jme_rx_ring_tag; 152 bus_dmamap_t jme_rx_ring_map; 153 154 int jme_rx_cons; 155 int jme_rx_desc_cnt; 156 157 int jme_rxlen; 158 struct mbuf *jme_rxhead; 159 struct mbuf *jme_rxtail; 160 161 u_long jme_rx_pkt; 162 u_long jme_rx_emp; 163 } __cachealign; 164 165 struct jme_chain_data { 166 /* 167 * Top level tags 168 */ 169 bus_dma_tag_t jme_ring_tag; /* parent ring tag */ 170 bus_dma_tag_t jme_buffer_tag; /* parent mbuf/ssb tag */ 171 172 /* 173 * Shadow status block 174 */ 175 struct jme_ssb *jme_ssb_block; 176 bus_addr_t jme_ssb_block_paddr; 177 bus_dma_tag_t jme_ssb_tag; 178 bus_dmamap_t jme_ssb_map; 179 180 /* 181 * TX ring/descs 182 */ 183 struct lwkt_serialize jme_tx_serialize; 184 struct jme_softc *jme_sc; 185 bus_dma_tag_t jme_tx_tag; /* TX mbuf tag */ 186 struct jme_txdesc *jme_txdesc; 187 188 struct jme_desc *jme_tx_ring; 189 bus_addr_t jme_tx_ring_paddr; 190 bus_dma_tag_t jme_tx_ring_tag; 191 bus_dmamap_t jme_tx_ring_map; 192 193 int jme_tx_prod; 194 int jme_tx_cons; 195 int jme_tx_cnt; 196 int jme_tx_desc_cnt; 197 198 int jme_rx_ring_cnt; 199 struct jme_rxdata jme_rx_data[JME_NRXRING_MAX]; 200 } __cachealign; 201 202 struct jme_msix_data { 203 int jme_msix_rid; 204 int jme_msix_cpuid; 205 u_int jme_msix_vector; 206 uint32_t jme_msix_intrs; 207 struct resource *jme_msix_res; 208 void *jme_msix_handle; 209 struct lwkt_serialize *jme_msix_serialize; 210 char jme_msix_desc[64]; 211 212 driver_intr_t *jme_msix_func; 213 void *jme_msix_arg; 214 }; 215 216 #define JME_TX_RING_SIZE(sc) \ 217 (sizeof(struct jme_desc) * (sc)->jme_cdata.jme_tx_desc_cnt) 218 #define JME_RX_RING_SIZE(rdata) \ 219 (sizeof(struct jme_desc) * (rdata)->jme_rx_desc_cnt) 220 #define JME_SSB_SIZE sizeof(struct jme_ssb) 221 222 /* 223 * Software state per device. 224 */ 225 struct jme_softc { 226 struct arpcom arpcom; 227 device_t jme_dev; 228 229 int jme_mem_rid; 230 struct resource *jme_mem_res; 231 bus_space_tag_t jme_mem_bt; 232 bus_space_handle_t jme_mem_bh; 233 234 int jme_irq_type; 235 int jme_irq_rid; 236 struct resource *jme_irq_res; 237 void *jme_irq_handle; 238 struct jme_msix_data jme_msix[JME_NMSIX]; 239 int jme_msix_cnt; 240 uint32_t jme_msinum[JME_MSINUM_CNT]; 241 int jme_tx_cpuid; 242 243 int jme_npoll_rxoff; 244 int jme_npoll_txoff; 245 246 device_t jme_miibus; 247 int jme_phyaddr; 248 bus_addr_t jme_lowaddr; 249 250 uint32_t jme_clksrc; 251 uint32_t jme_clksrc_1000; 252 uint32_t jme_tx_dma_size; 253 uint32_t jme_rx_dma_size; 254 255 uint32_t jme_caps; 256 #define JME_CAP_FPGA 0x0001 257 #define JME_CAP_PCIE 0x0002 258 #define JME_CAP_PMCAP 0x0004 259 #define JME_CAP_FASTETH 0x0008 260 #define JME_CAP_JUMBO 0x0010 261 262 uint32_t jme_workaround; 263 #define JME_WA_EXTFIFO 0x0001 264 #define JME_WA_HDX 0x0002 265 266 boolean_t jme_has_link; 267 boolean_t jme_in_tick; 268 269 struct lwkt_serialize jme_serialize; 270 struct lwkt_serialize *jme_serialize_arr[JME_NSERIALIZE]; 271 int jme_serialize_cnt; 272 273 struct callout jme_tick_ch; 274 struct jme_chain_data jme_cdata; 275 int jme_if_flags; 276 uint32_t jme_txcsr; 277 uint32_t jme_rxcsr; 278 279 struct sysctl_ctx_list jme_sysctl_ctx; 280 struct sysctl_oid *jme_sysctl_tree; 281 282 /* 283 * Sysctl variables 284 */ 285 int jme_tx_coal_to; 286 int jme_tx_coal_pkt; 287 int jme_rx_coal_to; 288 int jme_rx_coal_pkt; 289 int jme_rss_debug; 290 }; 291 292 /* Register access macros. */ 293 #define CSR_WRITE_4(_sc, reg, val) \ 294 bus_space_write_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg), (val)) 295 #define CSR_READ_4(_sc, reg) \ 296 bus_space_read_4((_sc)->jme_mem_bt, (_sc)->jme_mem_bh, (reg)) 297 298 #define JME_MAXERR 5 299 300 #define JME_RXCHAIN_RESET(rdata) \ 301 do { \ 302 (rdata)->jme_rxhead = NULL; \ 303 (rdata)->jme_rxtail = NULL; \ 304 (rdata)->jme_rxlen = 0; \ 305 } while (0) 306 307 #define JME_TX_TIMEOUT 5 308 #define JME_TIMEOUT 1000 309 #define JME_PHY_TIMEOUT 1000 310 #define JME_EEPROM_TIMEOUT 1000 311 312 #define JME_TXD_RSVD 1 313 /* Large enough to cooperate 64K TSO segment and one spare TX descriptor */ 314 #define JME_TXD_SPARE 34 315 316 #define JME_ENABLE_HWRSS(sc) \ 317 ((sc)->jme_cdata.jme_rx_ring_cnt > JME_NRXRING_MIN) 318 319 #endif 320