The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/cxgb/cxgb_osdep.h

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    1 /**************************************************************************
    2 
    3 Copyright (c) 2007, Chelsio Inc.
    4 All rights reserved.
    5 
    6 Redistribution and use in source and binary forms, with or without
    7 modification, are permitted provided that the following conditions are met:
    8 
    9  1. Redistributions of source code must retain the above copyright notice,
   10     this list of conditions and the following disclaimer.
   11 
   12  2. Neither the name of the Chelsio Corporation nor the names of its
   13     contributors may be used to endorse or promote products derived from
   14     this software without specific prior written permission.
   15 
   16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
   20 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
   21 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   22 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   23 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
   24 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   25 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   26 POSSIBILITY OF SUCH DAMAGE.
   27 
   28 
   29 $FreeBSD: releng/11.0/sys/dev/cxgb/cxgb_osdep.h 299374 2016-05-10 16:31:18Z hselasky $
   30 
   31 ***************************************************************************/
   32 
   33 #include <sys/param.h>
   34 #include <sys/systm.h>
   35 #include <sys/ctype.h>
   36 #include <sys/endian.h>
   37 #include <sys/bus.h>
   38 
   39 #include <sys/lock.h>
   40 #include <sys/mutex.h>
   41 
   42 #include <sys/kdb.h>
   43 
   44 #include <dev/mii/mii.h>
   45 
   46 #ifndef _CXGB_OSDEP_H_
   47 #define _CXGB_OSDEP_H_
   48 
   49 typedef struct adapter adapter_t;
   50 typedef struct port_info pinfo_t;
   51 struct sge_rspq;
   52 
   53 enum {
   54         TP_TMR_RES = 200,       /* TP timer resolution in usec */
   55         MAX_NPORTS = 4,         /* max # of ports */
   56         TP_SRAM_OFFSET = 4096,  /* TP SRAM content offset in eeprom */
   57         TP_SRAM_LEN = 2112,     /* TP SRAM content offset in eeprom */
   58 };
   59 
   60 struct t3_mbuf_hdr {
   61         struct mbuf *mh_head;
   62         struct mbuf *mh_tail;
   63 };
   64 
   65 #ifndef PANIC_IF
   66 #define PANIC_IF(exp) do {                  \
   67         if (exp)                            \
   68                 panic("BUG: %s", #exp);      \
   69 } while (0)
   70 #endif
   71 
   72 #if __FreeBSD_version < 800054
   73 #if defined (__GNUC__)
   74   #if #cpu(i386) || defined __i386 || defined i386 || defined __i386__ || #cpu(x86_64) || defined __x86_64__
   75     #define mb()  __asm__ __volatile__ ("mfence;": : :"memory")
   76     #define wmb()  __asm__ __volatile__ ("sfence;": : :"memory")
   77     #define rmb()  __asm__ __volatile__ ("lfence;": : :"memory")
   78   #elif #cpu(sparc64) || defined sparc64 || defined __sparcv9 
   79     #define mb()  __asm__ __volatile__ ("membar #MemIssue": : :"memory")
   80     #define wmb() mb()
   81     #define rmb() mb()
   82   #elif #cpu(sparc) || defined sparc || defined __sparc__
   83     #define mb()  __asm__ __volatile__ ("stbar;": : :"memory")
   84     #define wmb() mb()
   85     #define rmb() mb()
   86 #else
   87     #define wmb() mb()
   88     #define rmb() mb()
   89     #define mb()        /* XXX just to make this compile */
   90   #endif
   91 #else
   92   #error "unknown compiler"
   93 #endif
   94 #endif
   95 
   96 /*
   97  * Workaround for weird Chelsio issue
   98  */
   99 #if __FreeBSD_version > 700029
  100 #define PRIV_SUPPORTED
  101 #endif
  102 
  103 #define CXGB_TX_CLEANUP_THRESHOLD        32
  104 
  105 #define TX_MAX_SIZE                (1 << 16)    /* 64KB                          */
  106 #define TX_MAX_SEGS                      36     /* maximum supported by card     */
  107 
  108 #define TX_MAX_DESC                       4     /* max descriptors per packet    */
  109 
  110 
  111 #define TX_START_MAX_DESC (TX_MAX_DESC << 2)    /* maximum number of descriptors
  112                                                  * call to start used per        */
  113 
  114 #define TX_CLEAN_MAX_DESC (TX_MAX_DESC << 4)    /* maximum tx descriptors
  115                                                  * to clean per iteration        */
  116 #define TX_WR_SIZE_MAX    11*1024              /* the maximum total size of packets aggregated into a single
  117                                                 * TX WR
  118                                                 */
  119 #define TX_WR_COUNT_MAX         7              /* the maximum total number of packets that can be
  120                                                 * aggregated into a single TX WR
  121                                                 */
  122 #if defined(__i386__) || defined(__amd64__)  
  123 
  124 static __inline
  125 void prefetch(void *x) 
  126 { 
  127         __asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
  128 }
  129 
  130 #define smp_mb() mb()
  131 
  132 #define L1_CACHE_BYTES 128
  133 #define WARN_ON(condition) do { \
  134         if (__predict_false((condition)!=0)) {  \
  135                 log(LOG_WARNING, "BUG: warning at %s:%d/%s()\n", __FILE__, __LINE__, __FUNCTION__); \
  136                 kdb_backtrace(); \
  137         } \
  138 } while (0)
  139 
  140 #else 
  141 #define smp_mb()
  142 #define prefetch(x)
  143 #define L1_CACHE_BYTES 32
  144 #endif
  145 
  146 #define DBG_RX          (1 << 0)
  147 static const int debug_flags = DBG_RX;
  148 
  149 #ifdef DEBUG_PRINT
  150 #define DBG(flag, msg) do {     \
  151         if ((flag & debug_flags))       \
  152                 printf msg; \
  153 } while (0)
  154 #else
  155 #define DBG(...)
  156 #endif
  157 
  158 #include <sys/syslog.h>
  159 
  160 #define promisc_rx_mode(rm)  ((rm)->port->ifp->if_flags & IFF_PROMISC) 
  161 #define allmulti_rx_mode(rm) ((rm)->port->ifp->if_flags & IFF_ALLMULTI) 
  162 
  163 #define CH_ERR(adap, fmt, ...) log(LOG_ERR, fmt, ##__VA_ARGS__)
  164 #define CH_WARN(adap, fmt, ...) log(LOG_WARNING, fmt, ##__VA_ARGS__)
  165 #define CH_ALERT(adap, fmt, ...) log(LOG_ALERT, fmt, ##__VA_ARGS__)
  166 
  167 #define t3_os_sleep(x) DELAY((x) * 1000)
  168 
  169 #define test_and_clear_bit(bit, p) atomic_cmpset_int((p), ((*(p)) | (1<<bit)), ((*(p)) & ~(1<<bit)))
  170 
  171 #define max_t(type, a, b) (type)max((a), (b))
  172 #define cpu_to_be32(x)          htobe32(x)
  173 
  174 /* Standard PHY definitions */
  175 #define BMCR_LOOPBACK           BMCR_LOOP
  176 #define BMCR_ISOLATE            BMCR_ISO
  177 #define BMCR_ANENABLE           BMCR_AUTOEN
  178 #define BMCR_SPEED1000          BMCR_SPEED1
  179 #define BMCR_SPEED100           BMCR_SPEED0
  180 #define BMCR_ANRESTART          BMCR_STARTNEG
  181 #define BMCR_FULLDPLX           BMCR_FDX
  182 #define BMSR_LSTATUS            BMSR_LINK
  183 #define BMSR_ANEGCOMPLETE       BMSR_ACOMP
  184 
  185 #define MII_LPA                 MII_ANLPAR
  186 #define MII_ADVERTISE           MII_ANAR
  187 #define MII_CTRL1000            MII_100T2CR
  188 
  189 #define ADVERTISE_PAUSE_CAP     ANAR_FC
  190 #define ADVERTISE_PAUSE_ASYM    0x800
  191 #define ADVERTISE_PAUSE         ANAR_FC
  192 #define ADVERTISE_1000HALF      0x100
  193 #define ADVERTISE_1000FULL      0x200
  194 #define ADVERTISE_10FULL        ANAR_10_FD
  195 #define ADVERTISE_10HALF        ANAR_10
  196 #define ADVERTISE_100FULL       ANAR_TX_FD
  197 #define ADVERTISE_100HALF       ANAR_TX
  198 
  199 
  200 #define ADVERTISE_1000XHALF     ANAR_X_HD
  201 #define ADVERTISE_1000XFULL     ANAR_X_FD
  202 #define ADVERTISE_1000XPSE_ASYM ANAR_X_PAUSE_ASYM
  203 #define ADVERTISE_1000XPAUSE    ANAR_X_PAUSE_SYM
  204 
  205 #define ADVERTISE_CSMA          ANAR_CSMA
  206 #define ADVERTISE_NPAGE         ANAR_NP
  207 
  208 
  209 /* Standard PCI Extended Capabilities definitions */
  210 #define PCI_CAP_ID_VPD  PCIY_VPD
  211 #define PCI_VPD_ADDR    PCIR_VPD_ADDR
  212 #define PCI_VPD_ADDR_F  0x8000
  213 #define PCI_VPD_DATA    PCIR_VPD_DATA
  214 
  215 #define PCI_CAP_ID_EXP          PCIY_EXPRESS
  216 #define PCI_EXP_DEVCTL          PCIER_DEVICE_CTL
  217 #define PCI_EXP_DEVCTL_PAYLOAD  PCIEM_CTL_MAX_PAYLOAD
  218 #define PCI_EXP_DEVCTL_READRQ   PCIEM_CTL_MAX_READ_REQUEST
  219 #define PCI_EXP_LNKCTL          PCIER_LINK_CTL
  220 #define PCI_EXP_LNKSTA          PCIER_LINK_STA
  221 
  222 /*
  223  * Linux compatibility macros
  224  */
  225 
  226 /* Some simple translations */
  227 #define __devinit
  228 #define udelay(x) DELAY(x)
  229 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
  230 #define le32_to_cpu(x) le32toh(x)
  231 #define le16_to_cpu(x) le16toh(x)
  232 #define cpu_to_le32(x) htole32(x)
  233 #define swab32(x) bswap32(x)
  234 #ifndef simple_strtoul
  235 #define simple_strtoul(...) strtoul(__VA_ARGS__)
  236 #endif
  237 
  238 
  239 #ifndef LINUX_TYPES_DEFINED
  240 typedef uint8_t         u8;
  241 typedef uint16_t        u16;
  242 typedef uint32_t        u32;
  243 typedef uint64_t        u64;
  244  
  245 typedef uint8_t         __u8;
  246 typedef uint16_t        __u16;
  247 typedef uint32_t        __u32;
  248 typedef uint8_t         __be8;
  249 typedef uint16_t        __be16;
  250 typedef uint32_t        __be32;
  251 typedef uint64_t        __be64;
  252 #endif
  253 
  254 
  255 #if BYTE_ORDER == BIG_ENDIAN
  256 #define __BIG_ENDIAN_BITFIELD
  257 #elif BYTE_ORDER == LITTLE_ENDIAN
  258 #define __LITTLE_ENDIAN_BITFIELD
  259 #else
  260 #error "Must set BYTE_ORDER"
  261 #endif
  262 
  263 /* Indicates what features are supported by the interface. */
  264 #define SUPPORTED_10baseT_Half          (1 << 0)
  265 #define SUPPORTED_10baseT_Full          (1 << 1)
  266 #define SUPPORTED_100baseT_Half         (1 << 2)
  267 #define SUPPORTED_100baseT_Full         (1 << 3)
  268 #define SUPPORTED_1000baseT_Half        (1 << 4)
  269 #define SUPPORTED_1000baseT_Full        (1 << 5)
  270 #define SUPPORTED_Autoneg               (1 << 6)
  271 #define SUPPORTED_TP                    (1 << 7)
  272 #define SUPPORTED_AUI                   (1 << 8)
  273 #define SUPPORTED_MII                   (1 << 9) 
  274 #define SUPPORTED_FIBRE                 (1 << 10)
  275 #define SUPPORTED_BNC                   (1 << 11)
  276 #define SUPPORTED_10000baseT_Full       (1 << 12)
  277 #define SUPPORTED_Pause                 (1 << 13)
  278 #define SUPPORTED_Asym_Pause            (1 << 14)
  279 
  280 /* Indicates what features are advertised by the interface. */
  281 #define ADVERTISED_10baseT_Half         (1 << 0)
  282 #define ADVERTISED_10baseT_Full         (1 << 1)
  283 #define ADVERTISED_100baseT_Half        (1 << 2)
  284 #define ADVERTISED_100baseT_Full        (1 << 3)
  285 #define ADVERTISED_1000baseT_Half       (1 << 4)
  286 #define ADVERTISED_1000baseT_Full       (1 << 5)
  287 #define ADVERTISED_Autoneg              (1 << 6)
  288 #define ADVERTISED_TP                   (1 << 7)
  289 #define ADVERTISED_AUI                  (1 << 8)
  290 #define ADVERTISED_MII                  (1 << 9)
  291 #define ADVERTISED_FIBRE                (1 << 10) 
  292 #define ADVERTISED_BNC                  (1 << 11)
  293 #define ADVERTISED_10000baseT_Full      (1 << 12)
  294 #define ADVERTISED_Pause                (1 << 13)
  295 #define ADVERTISED_Asym_Pause           (1 << 14)
  296 
  297 /* Enable or disable autonegotiation.  If this is set to enable,
  298  * the forced link modes above are completely ignored.
  299  */
  300 #define AUTONEG_DISABLE         0x00
  301 #define AUTONEG_ENABLE          0x01
  302 
  303 #define SPEED_10                10
  304 #define SPEED_100               100
  305 #define SPEED_1000              1000
  306 #define SPEED_10000             10000
  307 #define DUPLEX_HALF             0
  308 #define DUPLEX_FULL             1
  309 
  310 #endif

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