if_alevar.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2008, 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_ALEVAR_H
   33 #define _IF_ALEVAR_H
   34 
   35 #define ALE_TX_RING_CNT         256     /* Should be multiple of 4. */
   36 #define ALE_TX_RING_CNT_MIN     32
   37 #define ALE_TX_RING_CNT_MAX     1020
   38 #define ALE_TX_RING_ALIGN       8
   39 #define ALE_RX_PAGE_ALIGN       32
   40 #define ALE_RX_PAGES            2
   41 #define ALE_CMB_ALIGN           32
   42 
   43 #define ALE_TSO_MAXSEGSIZE      4096
   44 #define ALE_TSO_MAXSIZE         (65535 + sizeof(struct ether_vlan_header))
   45 #define ALE_MAXTXSEGS           35
   46 
   47 #define ALE_ADDR_LO(x)          ((uint64_t) (x) & 0xFFFFFFFF)
   48 #define ALE_ADDR_HI(x)          ((uint64_t) (x) >> 32)
   49 
   50 /* Water mark to kick reclaiming Tx buffers. */
   51 #define ALE_TX_DESC_HIWAT       (ALE_TX_RING_CNT - ((ALE_TX_RING_CNT * 4) / 10))
   52 
   53 #define ALE_MSI_MESSAGES        1
   54 #define ALE_MSIX_MESSAGES       1
   55 
   56 /*
   57  * TODO : Should get real jumbo MTU size.
   58  * The hardware seems to have trouble in dealing with large
   59  * frame length. If you encounter unstability issue, use
   60  * lower MTU size.
   61  */
   62 #define ALE_JUMBO_FRAMELEN      8132
   63 #define ALE_JUMBO_MTU           \
   64         (ALE_JUMBO_FRAMELEN - sizeof(struct ether_vlan_header) - ETHER_CRC_LEN)
   65 #define ALE_MAX_FRAMELEN        (ETHER_MAX_LEN + ETHER_VLAN_ENCAP_LEN)
   66 
   67 #define ALE_DESC_INC(x, y)      ((x) = ((x) + 1) % (y))
   68 
   69 struct ale_txdesc {
   70         struct mbuf             *tx_m;
   71         bus_dmamap_t            tx_dmamap;
   72 };
   73 
   74 struct ale_rx_page {
   75         bus_dma_tag_t           page_tag;
   76         bus_dmamap_t            page_map;
   77         uint8_t                 *page_addr;
   78         bus_addr_t              page_paddr;
   79         bus_dma_tag_t           cmb_tag;
   80         bus_dmamap_t            cmb_map;
   81         uint32_t                *cmb_addr;
   82         bus_addr_t              cmb_paddr;
   83         uint32_t                cons;
   84 };
   85 
   86 struct ale_chain_data{
   87         bus_dma_tag_t           ale_parent_tag;
   88         bus_dma_tag_t           ale_buffer_tag;
   89         bus_dma_tag_t           ale_tx_tag;
   90         struct ale_txdesc       ale_txdesc[ALE_TX_RING_CNT];
   91         bus_dma_tag_t           ale_tx_ring_tag;
   92         bus_dmamap_t            ale_tx_ring_map;
   93         bus_dma_tag_t           ale_rx_mblock_tag[ALE_RX_PAGES];
   94         bus_dmamap_t            ale_rx_mblock_map[ALE_RX_PAGES];
   95         struct tx_desc          *ale_tx_ring;
   96         bus_addr_t              ale_tx_ring_paddr;
   97         uint32_t                *ale_tx_cmb;
   98         bus_addr_t              ale_tx_cmb_paddr;
   99         bus_dma_tag_t           ale_tx_cmb_tag;
  100         bus_dmamap_t            ale_tx_cmb_map;
  101 
  102         uint32_t                ale_tx_prod;
  103         uint32_t                ale_tx_cons;
  104         int                     ale_tx_cnt;
  105         struct ale_rx_page      ale_rx_page[ALE_RX_PAGES];
  106         int                     ale_rx_curp;
  107         uint16_t                ale_rx_seqno;
  108 };
  109 
  110 #define ALE_TX_RING_SZ          \
  111         (sizeof(struct tx_desc) * ALE_TX_RING_CNT)
  112 #define ALE_RX_PAGE_SZ_MIN      (8 * 1024)
  113 #define ALE_RX_PAGE_SZ_MAX      (1024 * 1024)
  114 #define ALE_RX_FRAMES_PAGE      128
  115 #define ALE_RX_PAGE_SZ          \
  116         (roundup(ALE_MAX_FRAMELEN, ALE_RX_PAGE_ALIGN) * ALE_RX_FRAMES_PAGE)
  117 #define ALE_TX_CMB_SZ           (sizeof(uint32_t))
  118 #define ALE_RX_CMB_SZ           (sizeof(uint32_t))
  119 
  120 #define ALE_PROC_MIN            (ALE_RX_FRAMES_PAGE / 4)
  121 #define ALE_PROC_MAX            \
  122         ((ALE_RX_PAGE_SZ * ALE_RX_PAGES) / ETHER_MAX_LEN)
  123 #define ALE_PROC_DEFAULT        (ALE_PROC_MAX / 4)
  124 
  125 struct ale_hw_stats {
  126         /* Rx stats. */
  127         uint32_t rx_frames;
  128         uint32_t rx_bcast_frames;
  129         uint32_t rx_mcast_frames;
  130         uint32_t rx_pause_frames;
  131         uint32_t rx_control_frames;
  132         uint32_t rx_crcerrs;
  133         uint32_t rx_lenerrs;
  134         uint64_t rx_bytes;
  135         uint32_t rx_runts;
  136         uint32_t rx_fragments;
  137         uint32_t rx_pkts_64;
  138         uint32_t rx_pkts_65_127;
  139         uint32_t rx_pkts_128_255;
  140         uint32_t rx_pkts_256_511;
  141         uint32_t rx_pkts_512_1023;
  142         uint32_t rx_pkts_1024_1518;
  143         uint32_t rx_pkts_1519_max;
  144         uint32_t rx_pkts_truncated;
  145         uint32_t rx_fifo_oflows;
  146         uint32_t rx_rrs_errs;
  147         uint32_t rx_alignerrs;
  148         uint64_t rx_bcast_bytes;
  149         uint64_t rx_mcast_bytes;
  150         uint32_t rx_pkts_filtered;
  151         /* Tx stats. */
  152         uint32_t tx_frames;
  153         uint32_t tx_bcast_frames;
  154         uint32_t tx_mcast_frames;
  155         uint32_t tx_pause_frames;
  156         uint32_t tx_excess_defer;
  157         uint32_t tx_control_frames;
  158         uint32_t tx_deferred;
  159         uint64_t tx_bytes;
  160         uint32_t tx_pkts_64;
  161         uint32_t tx_pkts_65_127;
  162         uint32_t tx_pkts_128_255;
  163         uint32_t tx_pkts_256_511;
  164         uint32_t tx_pkts_512_1023;
  165         uint32_t tx_pkts_1024_1518;
  166         uint32_t tx_pkts_1519_max;
  167         uint32_t tx_single_colls;
  168         uint32_t tx_multi_colls;
  169         uint32_t tx_late_colls;
  170         uint32_t tx_excess_colls;
  171         uint32_t tx_abort;
  172         uint32_t tx_underrun;
  173         uint32_t tx_desc_underrun;
  174         uint32_t tx_lenerrs;
  175         uint32_t tx_pkts_truncated;
  176         uint64_t tx_bcast_bytes;
  177         uint64_t tx_mcast_bytes;
  178         /* Misc. */
  179         uint32_t reset_brk_seq;
  180 };
  181 
  182 /*
  183  * Software state per device.
  184  */
  185 struct ale_softc {
  186         struct ifnet            *ale_ifp;
  187         device_t                ale_dev;
  188         device_t                ale_miibus;
  189         struct resource         *ale_res[1];
  190         struct resource_spec    *ale_res_spec;
  191         struct resource         *ale_irq[ALE_MSI_MESSAGES];
  192         struct resource_spec    *ale_irq_spec;
  193         void                    *ale_intrhand[ALE_MSI_MESSAGES];
  194         int                     ale_rev;
  195         int                     ale_chip_rev;
  196         int                     ale_phyaddr;
  197         uint8_t                 ale_eaddr[ETHER_ADDR_LEN];
  198         uint32_t                ale_dma_rd_burst;
  199         uint32_t                ale_dma_wr_burst;
  200         int                     ale_flags;
  201 #define ALE_FLAG_PCIE           0x0001
  202 #define ALE_FLAG_PCIX           0x0002
  203 #define ALE_FLAG_MSI            0x0004
  204 #define ALE_FLAG_MSIX           0x0008
  205 #define ALE_FLAG_PMCAP          0x0010
  206 #define ALE_FLAG_FASTETHER      0x0020
  207 #define ALE_FLAG_JUMBO          0x0040
  208 #define ALE_FLAG_RXCSUM_BUG     0x0080
  209 #define ALE_FLAG_TXCSUM_BUG     0x0100
  210 #define ALE_FLAG_TXCMB_BUG      0x0200
  211 #define ALE_FLAG_LINK           0x8000
  212 
  213         struct callout          ale_tick_ch;
  214         struct ale_hw_stats     ale_stats;
  215         struct ale_chain_data   ale_cdata;
  216         int                     ale_if_flags;
  217         int                     ale_watchdog_timer;
  218         int                     ale_process_limit;
  219         volatile int            ale_morework;
  220         int                     ale_int_rx_mod;
  221         int                     ale_int_tx_mod;
  222         int                     ale_max_frame_size;
  223         int                     ale_pagesize;
  224 
  225         struct task             ale_int_task;
  226         struct taskqueue        *ale_tq;
  227         struct mtx              ale_mtx;
  228 };
  229 
  230 /* Register access macros. */
  231 #define CSR_WRITE_4(_sc, reg, val)      \
  232         bus_write_4((_sc)->ale_res[0], (reg), (val))
  233 #define CSR_WRITE_2(_sc, reg, val)      \
  234         bus_write_2((_sc)->ale_res[0], (reg), (val))
  235 #define CSR_WRITE_1(_sc, reg, val)      \
  236         bus_write_1((_sc)->ale_res[0], (reg), (val))
  237 #define CSR_READ_2(_sc, reg)            \
  238         bus_read_2((_sc)->ale_res[0], (reg))
  239 #define CSR_READ_4(_sc, reg)            \
  240         bus_read_4((_sc)->ale_res[0], (reg))
  241 
  242 #define ALE_LOCK(_sc)           mtx_lock(&(_sc)->ale_mtx)
  243 #define ALE_UNLOCK(_sc)         mtx_unlock(&(_sc)->ale_mtx)
  244 #define ALE_LOCK_ASSERT(_sc)    mtx_assert(&(_sc)->ale_mtx, MA_OWNED)
  245 
  246 #define ALE_TX_TIMEOUT          5
  247 #define ALE_RESET_TIMEOUT       100
  248 #define ALE_TIMEOUT             1000
  249 #define ALE_PHY_TIMEOUT         1000
  250 
  251 #endif  /* _IF_ATEVAR_H */

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FreeBSD/Linux Kernel Cross Reference sys/dev/ale/if_alevar.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/ale/if_alevar.h