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 * $FreeBSD$ 28 */ 29 30 #ifndef _IF_JMEVAR_H 31 #define _IF_JMEVAR_H 32 33 #include <sys/queue.h> 34 #include <sys/callout.h> 35 #include <sys/taskqueue.h> 36 37 /* 38 * JMC250 supports upto 1024 descriptors and the number of 39 * descriptors should be multiple of 16. 40 */ 41 #define JME_TX_RING_CNT 384 42 #define JME_RX_RING_CNT 256 43 /* 44 * Tx/Rx descriptor queue base should be 16bytes aligned and 45 * should not cross 4G bytes boundary on the 64bits address 46 * mode. 47 */ 48 #define JME_TX_RING_ALIGN 16 49 #define JME_RX_RING_ALIGN 16 50 #define JME_TSO_MAXSEGSIZE 4096 51 #define JME_TSO_MAXSIZE (65535 + sizeof(struct ether_vlan_header)) 52 #define JME_MAXTXSEGS 32 53 #define JME_RX_BUF_ALIGN sizeof(uint64_t) 54 #define JME_SSB_ALIGN 16 55 56 #define JME_ADDR_LO(x) ((uint64_t) (x) & 0xFFFFFFFF) 57 #define JME_ADDR_HI(x) ((uint64_t) (x) >> 32) 58 59 #define JME_MSI_MESSAGES 8 60 #define JME_MSIX_MESSAGES 8 61 62 /* Water mark to kick reclaiming Tx buffers. */ 63 #define JME_TX_DESC_HIWAT (JME_TX_RING_CNT - (((JME_TX_RING_CNT) * 3) / 10)) 64 65 /* 66 * JMC250 can send 9K jumbo frame on Tx path and can receive 67 * 65535 bytes. 68 */ 69 #define JME_JUMBO_FRAMELEN 9216 70 #define JME_JUMBO_MTU \ 71 (JME_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - \ 72 ETHER_HDR_LEN - ETHER_CRC_LEN) 73 #define JME_MAX_MTU \ 74 (ETHER_MAX_LEN + sizeof(struct ether_vlan_header) - \ 75 ETHER_HDR_LEN - ETHER_CRC_LEN) 76 /* 77 * JMC250 can't handle Tx checksum offload/TSO if frame length 78 * is larger than its FIFO size(2K). It's also good idea to not 79 * use jumbo frame if hardware is running at half-duplex media. 80 * Because the jumbo frame may not fit into the Tx FIFO, 81 * collisions make hardware fetch frame from host memory with 82 * DMA again which in turn slows down Tx performance 83 * significantly. 84 */ 85 #define JME_TX_FIFO_SIZE 2000 86 /* 87 * JMC250 has just 4K Rx FIFO. To support jumbo frame that is 88 * larger than 4K bytes in length, Rx FIFO threshold should be 89 * adjusted to minimize Rx FIFO overrun. 90 */ 91 #define JME_RX_FIFO_SIZE 4000 92 93 #define JME_DESC_INC(x, y) ((x) = ((x) + 1) % (y)) 94 95 #define JME_PROC_MIN 10 96 #define JME_PROC_DEFAULT (JME_RX_RING_CNT / 2) 97 #define JME_PROC_MAX (JME_RX_RING_CNT - 1) 98 99 struct jme_txdesc { 100 struct mbuf *tx_m; 101 bus_dmamap_t tx_dmamap; 102 int tx_ndesc; 103 struct jme_desc *tx_desc; 104 }; 105 106 struct jme_rxdesc { 107 struct mbuf *rx_m; 108 bus_dmamap_t rx_dmamap; 109 struct jme_desc *rx_desc; 110 }; 111 112 struct jme_chain_data{ 113 bus_dma_tag_t jme_ring_tag; 114 bus_dma_tag_t jme_buffer_tag; 115 bus_dma_tag_t jme_ssb_tag; 116 bus_dmamap_t jme_ssb_map; 117 bus_dma_tag_t jme_tx_tag; 118 struct jme_txdesc jme_txdesc[JME_TX_RING_CNT]; 119 bus_dma_tag_t jme_rx_tag; 120 struct jme_rxdesc jme_rxdesc[JME_RX_RING_CNT]; 121 bus_dma_tag_t jme_tx_ring_tag; 122 bus_dmamap_t jme_tx_ring_map; 123 bus_dma_tag_t jme_rx_ring_tag; 124 bus_dmamap_t jme_rx_ring_map; 125 bus_dmamap_t jme_rx_sparemap; 126 127 int jme_tx_prod; 128 int jme_tx_cons; 129 int jme_tx_cnt; 130 int jme_rx_cons; 131 int jme_rxlen; 132 133 struct mbuf *jme_rxhead; 134 struct mbuf *jme_rxtail; 135 }; 136 137 struct jme_ring_data { 138 struct jme_desc *jme_tx_ring; 139 bus_addr_t jme_tx_ring_paddr; 140 struct jme_desc *jme_rx_ring; 141 bus_addr_t jme_rx_ring_paddr; 142 struct jme_ssb *jme_ssb_block; 143 bus_addr_t jme_ssb_block_paddr; 144 }; 145 146 #define JME_TX_RING_ADDR(sc, i) \ 147 ((sc)->jme_rdata.jme_tx_ring_paddr + sizeof(struct jme_desc) * (i)) 148 #define JME_RX_RING_ADDR(sc, i) \ 149 ((sc)->jme_rdata.jme_rx_ring_paddr + sizeof(struct jme_desc) * (i)) 150 151 #define JME_TX_RING_SIZE \ 152 (sizeof(struct jme_desc) * JME_TX_RING_CNT) 153 #define JME_RX_RING_SIZE \ 154 (sizeof(struct jme_desc) * JME_RX_RING_CNT) 155 #define JME_SSB_SIZE sizeof(struct jme_ssb) 156 157 /* Statistics counters. */ 158 struct jme_hw_stats { 159 uint32_t rx_good_frames; 160 uint32_t rx_crc_errs; 161 uint32_t rx_mii_errs; 162 uint32_t rx_fifo_oflows; 163 uint32_t rx_desc_empty; 164 uint32_t rx_bad_frames; 165 uint32_t tx_good_frames; 166 uint32_t tx_bad_frames; 167 }; 168 169 /* 170 * Software state per device. 171 */ 172 struct jme_softc { 173 struct ifnet *jme_ifp; 174 device_t jme_dev; 175 device_t jme_miibus; 176 struct resource *jme_res[1]; 177 struct resource_spec *jme_res_spec; 178 struct resource *jme_irq[JME_MSI_MESSAGES]; 179 struct resource_spec *jme_irq_spec; 180 void *jme_intrhand[JME_MSI_MESSAGES]; 181 int jme_rev; 182 int jme_chip_rev; 183 int jme_phyaddr; 184 uint8_t jme_eaddr[ETHER_ADDR_LEN]; 185 uint32_t jme_tx_dma_size; 186 uint32_t jme_rx_dma_size; 187 int jme_flags; 188 #define JME_FLAG_FPGA 0x0001 189 #define JME_FLAG_PCIE 0x0002 190 #define JME_FLAG_PCIX 0x0003 191 #define JME_FLAG_MSI 0x0004 192 #define JME_FLAG_MSIX 0x0010 193 #define JME_FLAG_PMCAP 0x0020 194 #define JME_FLAG_FASTETH 0x0040 195 #define JME_FLAG_NOJUMBO 0x0080 196 #define JME_FLAG_TXCLK 0x0100 197 #define JME_FLAG_DMA32BIT 0x0200 198 #define JME_FLAG_HWMIB 0x0400 199 #define JME_FLAG_DETACH 0x4000 200 #define JME_FLAG_LINK 0x8000 201 202 struct jme_hw_stats jme_ostats; 203 struct jme_hw_stats jme_stats; 204 struct callout jme_tick_ch; 205 struct jme_chain_data jme_cdata; 206 struct jme_ring_data jme_rdata; 207 int jme_if_flags; 208 int jme_watchdog_timer; 209 uint32_t jme_txcsr; 210 uint32_t jme_rxcsr; 211 int jme_process_limit; 212 int jme_tx_coal_to; 213 int jme_tx_coal_pkt; 214 int jme_rx_coal_to; 215 int jme_rx_coal_pkt; 216 volatile int jme_morework; 217 218 struct task jme_int_task; 219 struct task jme_tx_task; 220 struct task jme_link_task; 221 struct taskqueue *jme_tq; 222 struct mtx jme_mtx; 223 }; 224 225 /* Register access macros. */ 226 #define CSR_WRITE_4(_sc, reg, val) \ 227 bus_write_4((_sc)->jme_res[0], (reg), (val)) 228 #define CSR_READ_4(_sc, reg) \ 229 bus_read_4((_sc)->jme_res[0], (reg)) 230 231 #define JME_LOCK(_sc) mtx_lock(&(_sc)->jme_mtx) 232 #define JME_UNLOCK(_sc) mtx_unlock(&(_sc)->jme_mtx) 233 #define JME_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->jme_mtx, MA_OWNED) 234 235 #define JME_MAXERR 5 236 237 #define JME_RXCHAIN_RESET(_sc) \ 238 do { \ 239 (_sc)->jme_cdata.jme_rxhead = NULL; \ 240 (_sc)->jme_cdata.jme_rxtail = NULL; \ 241 (_sc)->jme_cdata.jme_rxlen = 0; \ 242 } while (0) 243 244 #define JME_TX_TIMEOUT 5 245 #define JME_TIMEOUT 1000 246 #define JME_PHY_TIMEOUT 1000 247 #define JME_EEPROM_TIMEOUT 1000 248 249 #endif 250