sys/dev/netif/alc/if_alcvar.h

   1 /*-
   2  * Copyright (c) 2009, 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/alc/if_alcvar.h,v 1.1 2009/06/10 02:07:58 yongari Exp $
  28  * $DragonFly$
  29  */
  30
  31 #ifndef _IF_ALCVAR_H
  32 #define _IF_ALCVAR_H
  33
  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
  43
  44 #define ALC_TSO_MAXSEGSIZE      4096
  45 #define ALC_TSO_MAXSIZE         (65535 + sizeof(struct ether_vlan_header))
  46 #define ALC_MAXTXSEGS           32
  47
  48 #define ALC_ADDR_LO(x)          ((uint64_t) (x) & 0xFFFFFFFF)
  49 #define ALC_ADDR_HI(x)          ((uint64_t) (x) >> 32)
  50
  51 #define ALC_DESC_INC(x, y)      ((x) = ((x) + 1) % (y))
  52
  53 /* Water mark to kick reclaiming Tx buffers. */
  54 #define ALC_TX_DESC_HIWAT       ((ALC_TX_RING_CNT * 6) / 10)
  55
  56 #define ALC_MSI_MESSAGES        1
  57 #define ALC_MSIX_MESSAGES       1
  58
  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))
  67
  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)
  71
  72 #define ALC_JUMBO_FRAMELEN      (9 * 1024)
  73 #define ALC_JUMBO_MTU           \
  74         (ALC_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - ETHER_CRC_LEN)
  75 #define ALC_MAX_FRAMELEN        (ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN)
  76
  77 /*
  78  * The number of bits reserved for MSS in AR8121/AR8132 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
  87 #ifndef IFCAP_TSO4
  88 #define IFCAP_TSO4 0
  89 #endif
  90
  91 #ifndef CSUM_TSO
  92 #define CSUM_TSO 0
  93 #endif
  94
  95
  96 struct alc_rxdesc {
  97         struct mbuf             *rx_m;
  98         bus_dmamap_t            rx_dmamap;
  99         struct rx_desc          *rx_desc;
 100 };
 101
 102 struct alc_txdesc {
 103         struct mbuf             *tx_m;
 104         bus_dmamap_t            tx_dmamap;
 105 };
 106
 107 struct alc_ring_data {
 108         struct tx_desc          *alc_tx_ring;
 109         bus_addr_t              alc_tx_ring_paddr;
 110         struct rx_desc          *alc_rx_ring;
 111         bus_addr_t              alc_rx_ring_paddr;
 112         struct rx_rdesc         *alc_rr_ring;
 113         bus_addr_t              alc_rr_ring_paddr;
 114         struct cmb              *alc_cmb;
 115         bus_addr_t              alc_cmb_paddr;
 116         struct smb              *alc_smb;
 117         bus_addr_t              alc_smb_paddr;
 118 };
 119
 120 struct alc_chain_data {
 121         bus_dma_tag_t           alc_parent_tag;
 122         bus_dma_tag_t           alc_buffer_tag;
 123         bus_dma_tag_t           alc_tx_tag;
 124         struct alc_txdesc       alc_txdesc[ALC_TX_RING_CNT];
 125         bus_dma_tag_t           alc_rx_tag;
 126         struct alc_rxdesc       alc_rxdesc[ALC_RX_RING_CNT];
 127         bus_dma_tag_t           alc_tx_ring_tag;
 128         bus_dmamap_t            alc_tx_ring_map;
 129         bus_dma_tag_t           alc_rx_ring_tag;
 130         bus_dmamap_t            alc_rx_ring_map;
 131         bus_dma_tag_t           alc_rr_ring_tag;
 132         bus_dmamap_t            alc_rr_ring_map;
 133         bus_dmamap_t            alc_rx_sparemap;
 134         bus_dma_tag_t           alc_cmb_tag;
 135         bus_dmamap_t            alc_cmb_map;
 136         bus_dma_tag_t           alc_smb_tag;
 137         bus_dmamap_t            alc_smb_map;
 138
 139         int                     alc_tx_prod;
 140         int                     alc_tx_cons;
 141         int                     alc_tx_cnt;
 142         int                     alc_rx_cons;
 143         int                     alc_rr_cons;
 144         int                     alc_rxlen;
 145
 146         struct mbuf             *alc_rxhead;
 147         struct mbuf             *alc_rxtail;
 148         struct mbuf             *alc_rxprev_tail;
 149 };
 150
 151 struct alc_hw_stats {
 152         /* Rx stats. */
 153         uint32_t rx_frames;
 154         uint32_t rx_bcast_frames;
 155         uint32_t rx_mcast_frames;
 156         uint32_t rx_pause_frames;
 157         uint32_t rx_control_frames;
 158         uint32_t rx_crcerrs;
 159         uint32_t rx_lenerrs;
 160         uint64_t rx_bytes;
 161         uint32_t rx_runts;
 162         uint32_t rx_fragments;
 163         uint32_t rx_pkts_64;
 164         uint32_t rx_pkts_65_127;
 165         uint32_t rx_pkts_128_255;
 166         uint32_t rx_pkts_256_511;
 167         uint32_t rx_pkts_512_1023;
 168         uint32_t rx_pkts_1024_1518;
 169         uint32_t rx_pkts_1519_max;
 170         uint32_t rx_pkts_truncated;
 171         uint32_t rx_fifo_oflows;
 172         uint32_t rx_rrs_errs;
 173         uint32_t rx_alignerrs;
 174         uint64_t rx_bcast_bytes;
 175         uint64_t rx_mcast_bytes;
 176         uint32_t rx_pkts_filtered;
 177         /* Tx stats. */
 178         uint32_t tx_frames;
 179         uint32_t tx_bcast_frames;
 180         uint32_t tx_mcast_frames;
 181         uint32_t tx_pause_frames;
 182         uint32_t tx_excess_defer;
 183         uint32_t tx_control_frames;
 184         uint32_t tx_deferred;
 185         uint64_t tx_bytes;
 186         uint32_t tx_pkts_64;
 187         uint32_t tx_pkts_65_127;
 188         uint32_t tx_pkts_128_255;
 189         uint32_t tx_pkts_256_511;
 190         uint32_t tx_pkts_512_1023;
 191         uint32_t tx_pkts_1024_1518;
 192         uint32_t tx_pkts_1519_max;
 193         uint32_t tx_single_colls;
 194         uint32_t tx_multi_colls;
 195         uint32_t tx_late_colls;
 196         uint32_t tx_excess_colls;
 197         uint32_t tx_abort;
 198         uint32_t tx_underrun;
 199         uint32_t tx_desc_underrun;
 200         uint32_t tx_lenerrs;
 201         uint32_t tx_pkts_truncated;
 202         uint64_t tx_bcast_bytes;
 203         uint64_t tx_mcast_bytes;
 204 };
 205
 206 /*
 207  * Software state per device.
 208  */
 209 struct alc_softc {
 210         struct arpcom           arpcom;
 211         struct ifnet            *alc_ifp;       /* points to arpcom.ac_if */
 212         device_t                alc_dev;
 213         device_t                alc_miibus;
 214         struct resource         *alc_res[1];
 215         struct resource_spec    *alc_res_spec;
 216         struct resource         *alc_irq[ALC_MSI_MESSAGES];
 217         struct resource_spec    *alc_irq_spec;
 218         void                    *alc_intrhand[ALC_MSI_MESSAGES];
 219         int                     alc_rev;
 220         int                     alc_chip_rev;
 221         int                     alc_phyaddr;
 222         uint8_t                 alc_eaddr[ETHER_ADDR_LEN];
 223         uint32_t                alc_dma_rd_burst;
 224         uint32_t                alc_dma_wr_burst;
 225         uint32_t                alc_rcb;
 226         int                     alc_flags;
 227 #define ALC_FLAG_PCIE           0x0001
 228 #define ALC_FLAG_PCIX           0x0002
 229 #define ALC_FLAG_MSI            0x0004
 230 #define ALC_FLAG_MSIX           0x0008
 231 #define ALC_FLAG_FASTETHER      0x0020
 232 #define ALC_FLAG_JUMBO          0x0040
 233 #define ALC_FLAG_ASPM_MON       0x0080
 234 #define ALC_FLAG_CMB_BUG        0x0100
 235 #define ALC_FLAG_SMB_BUG        0x0200
 236 #define ALC_FLAG_DETACH         0x4000
 237 #define ALC_FLAG_LINK           0x8000
 238
 239         struct callout          alc_tick_ch;
 240         struct alc_hw_stats     alc_stats;
 241         struct alc_chain_data   alc_cdata;
 242         struct alc_ring_data    alc_rdata;
 243         int                     alc_if_flags;
 244         int                     alc_watchdog_timer;
 245         int                     alc_process_limit;
 246         volatile int            alc_morework;
 247         int                     alc_int_rx_mod;
 248         int                     alc_int_tx_mod;
 249         int                     alc_buf_size;
 250
 251         struct sysctl_ctx_list  alc_sysctl_ctx;
 252
 253         struct task             alc_int_task;
 254         struct task             alc_tx_task;
 255         struct taskqueue        *alc_tq;
 256         struct lock             alc_lock;
 257 };
 258
 259 /* Register access macros. */
 260 #define CSR_WRITE_4(_sc, reg, val)      \
 261         bus_write_4((_sc)->alc_res[0], (reg), (val))
 262 #define CSR_WRITE_2(_sc, reg, val)      \
 263         bus_write_2((_sc)->alc_res[0], (reg), (val))
 264 #define CSR_WRITE_1(_sc, reg, val)      \
 265         bus_write_1((_sc)->alc_res[0], (reg), (val))
 266 #define CSR_READ_2(_sc, reg)            \
 267         bus_read_2((_sc)->alc_res[0], (reg))
 268 #define CSR_READ_4(_sc, reg)            \
 269         bus_read_4((_sc)->alc_res[0], (reg))
 270
 271 #define ALC_RXCHAIN_RESET(_sc)                                          \
 272 do {                                                                    \
 273         (_sc)->alc_cdata.alc_rxhead = NULL;                             \
 274         (_sc)->alc_cdata.alc_rxtail = NULL;                             \
 275         (_sc)->alc_cdata.alc_rxprev_tail = NULL;                        \
 276         (_sc)->alc_cdata.alc_rxlen = 0;                                 \
 277 } while (0)
 278
 279 #define ALC_LOCK(_sc)           lockmgr(&(_sc)->alc_lock, LK_EXCLUSIVE)
 280 #define ALC_UNLOCK(_sc)         lockmgr(&(_sc)->alc_lock, LK_RELEASE)
 281 #define ALC_LOCK_ASSERT(_sc)    KKASSERT(lockstatus(&(_sc)->alc_lock, curthread) != 0)
 282
 283 #define ALC_TX_TIMEOUT          5
 284 #define ALC_RESET_TIMEOUT       100
 285 #define ALC_TIMEOUT             1000
 286 #define ALC_PHY_TIMEOUT         1000
 287
 288 #endif  /* _IF_ALCVAR_H */