1 | /* |
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2 | * Stand alone function to read the disk info. |
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3 | * Sets up global arrays dr_name and dr_unit as declared below. |
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4 | * This function requires 'int kmem' to be set to the open descriptor |
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5 | * for /dev/kmem. The array 'namelist' should be initailized, with |
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6 | * the proper X_MBDINIT all set. |
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7 | */ |
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8 | |
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9 | #include "mon.h" |
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10 | /* these files should be included somehow |
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11 | #include <stdio.h> |
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12 | #include <sys/param.h> |
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13 | #include <sys/vm.h> |
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14 | #include <sys/dk.h> |
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15 | #include <nlist.h> |
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16 | */ |
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17 | #include <sys/buf.h> |
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18 | #ifdef vax |
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19 | #include <vaxuba/ubavar.h> |
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20 | #include <vaxmba/mbavar.h> |
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21 | #endif |
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22 | #ifdef sun |
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23 | #include <sundev/mbvar.h> |
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24 | #endif |
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25 | #ifdef ibm032 |
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26 | #include <caio/ioccvar.h> |
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27 | #endif |
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28 | |
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29 | extern char dr_name[DK_NDRIVE][10]; |
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30 | extern char dr_unit[DK_NDRIVE]; |
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31 | extern int kmem; |
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32 | extern struct nlist namelist[] ; |
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33 | |
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34 | |
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35 | /* Where kmem is the open file descriptor describing /dev/kmem */ |
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36 | #define steal(where, var) lseek(kmem, where, 0); read(kmem, &var, sizeof var); |
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37 | |
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38 | /* |
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39 | * Read the drive names out of kmem. |
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40 | */ |
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41 | #ifdef vax |
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42 | read_names() |
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43 | { |
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44 | struct mba_device mdev; |
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45 | register struct mba_device *mp; |
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46 | struct mba_driver mdrv; |
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47 | short two_char; |
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48 | char *cp = (char *) &two_char; |
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49 | struct uba_device udev, *up; |
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50 | struct uba_driver udrv; |
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51 | |
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52 | mp = (struct mba_device *) namelist[X_MBDINIT].n_value; |
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53 | up = (struct uba_device *) namelist[X_UBDINIT].n_value; |
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54 | if (up == 0) { |
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55 | fprintf(stderr, "vmstat: Disk init info not in namelist\n"); |
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56 | exit(1); |
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57 | } |
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58 | if (mp) for (;;) { |
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59 | steal(mp++, mdev); |
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60 | if (mdev.mi_driver == 0) |
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61 | break; |
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62 | if (mdev.mi_dk < 0 || mdev.mi_alive == 0) |
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63 | continue; |
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64 | steal(mdev.mi_driver, mdrv); |
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65 | steal(mdrv.md_dname, two_char); |
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66 | sprintf(dr_name[mdev.mi_dk], "%c%c", cp[0], cp[1]); |
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67 | dr_unit[mdev.mi_dk] = mdev.mi_unit; |
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68 | } |
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69 | for (;;) { |
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70 | steal(up++, udev); |
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71 | if (udev.ui_driver == 0) |
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72 | break; |
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73 | if (udev.ui_dk < 0 || udev.ui_alive == 0) |
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74 | continue; |
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75 | steal(udev.ui_driver, udrv); |
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76 | steal(udrv.ud_dname, two_char); |
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77 | sprintf(dr_name[udev.ui_dk], "%c%c", cp[0], cp[1]); |
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78 | dr_unit[udev.ui_dk] = udev.ui_unit; |
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79 | } |
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80 | } |
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81 | #endif |
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82 | |
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83 | #ifdef sun |
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84 | read_names() |
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85 | { |
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86 | struct iocc_device mdev; |
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87 | register struct iocc_device *mp; |
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88 | struct iocc_driver mdrv; |
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89 | short two_char; |
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90 | char *cp = (char *) &two_char; |
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91 | |
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92 | mp = (struct iocc_device *) namelist[X_MBDINIT].n_value; |
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93 | if (mp == 0) { |
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94 | fprintf(stderr, "iostat: Disk init info not in namelist\n"); |
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95 | exit(1); |
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96 | } |
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97 | for (;;) { |
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98 | steal(mp++, mdev); |
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99 | if (mdev.md_driver == 0) |
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100 | break; |
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101 | if (mdev.md_dk < 0 || mdev.md_alive == 0) |
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102 | continue; |
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103 | steal(mdev.md_driver, mdrv); |
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104 | steal(mdrv.mdr_dname, two_char); |
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105 | sprintf(dr_name[mdev.md_dk], "%c%c%d", cp[0], cp[1]); |
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106 | dr_unit[mdev.md_dk] = mdev.md_unit; |
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107 | } |
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108 | } |
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109 | #endif |
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110 | |
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111 | #ifdef ibm032 |
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112 | read_names() |
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113 | { |
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114 | struct iocc_device iod; |
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115 | register struct iocc_device *mp; |
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116 | struct iocc_driver mdrv; |
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117 | union { |
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118 | short two_short; |
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119 | char two_char[2]; |
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120 | } two; |
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121 | char *cp = two.two_char; |
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122 | |
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123 | mp = (struct iocc_device *) namelist[X_MBDINIT].n_value; |
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124 | if (mp == 0) { |
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125 | fprintf(stderr, "iostat: Disk init info not in namelist\n"); |
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126 | exit(1); |
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127 | } |
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128 | for (;;) { |
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129 | steal(mp++, iod); |
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130 | if (iod.iod_driver == 0) |
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131 | break; |
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132 | /* if (debug) |
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133 | printf("dk=%d alive=%d ctlr=%d\n",iod.iod_dk, |
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134 | iod.iod_alive,iod.iod_ctlr); |
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135 | */ |
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136 | if (iod.iod_dk < 0 || iod.iod_alive == 0) |
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137 | continue; |
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138 | if (iod.iod_ctlr < 0) |
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139 | continue; |
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140 | steal(iod.iod_driver, mdrv); |
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141 | steal(mdrv.idr_dname, two.two_short); |
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142 | sprintf(dr_name[iod.iod_dk], "%c%c%d", cp[0], cp[1], |
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143 | dr_unit[iod.iod_dk] = iod.iod_unit); |
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144 | } |
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145 | } |
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146 | #endif |
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