1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * Deimos - cryptographic acceleration based upon Broadcom 582x. 29 */ 30 31 #include <sys/types.h> 32 #include <sys/ddi.h> 33 #include <sys/sunddi.h> 34 #include <sys/kstat.h> 35 #include <sys/crypto/dca.h> 36 37 /* 38 * Kernel statistics. 39 */ 40 static int dca_ksupdate(kstat_t *, int); 41 42 /* 43 * Initialize Kstats. 44 */ 45 void 46 dca_ksinit(dca_t *dca) 47 { 48 char buf[64]; 49 int instance; 50 51 if (ddi_getprop(DDI_DEV_T_ANY, dca->dca_dip, 52 DDI_PROP_CANSLEEP | DDI_PROP_DONTPASS, "nostats", 0) != 0) { 53 /* 54 * sysadmin has explicity disabled stats to prevent 55 * covert channel. 56 */ 57 return; 58 } 59 60 instance = ddi_get_instance(dca->dca_dip); 61 62 /* 63 * Interrupt kstats. 64 */ 65 (void) sprintf(buf, "%sc%d", DRIVER, instance); 66 if ((dca->dca_intrstats = kstat_create(DRIVER, instance, buf, 67 "controller", KSTAT_TYPE_INTR, 1, 0)) == NULL) { 68 dca_error(dca, "unable to create interrupt kstat"); 69 } else { 70 kstat_install(dca->dca_intrstats); 71 } 72 73 /* 74 * Named kstats. 75 */ 76 if ((dca->dca_ksp = kstat_create(DRIVER, instance, NULL, "misc", 77 KSTAT_TYPE_NAMED, sizeof (dca_stat_t) / sizeof (kstat_named_t), 78 KSTAT_FLAG_WRITABLE)) == NULL) { 79 dca_error(dca, "unable to create kstats"); 80 } else { 81 dca_stat_t *dkp = (dca_stat_t *)dca->dca_ksp->ks_data; 82 kstat_named_init(&dkp->ds_status, "status", KSTAT_DATA_CHAR); 83 kstat_named_init(&dkp->ds_mcr[0].ds_submit, "mcr1submit", 84 KSTAT_DATA_ULONGLONG); 85 kstat_named_init(&dkp->ds_mcr[0].ds_flowctl, "mcr1flowctl", 86 KSTAT_DATA_ULONGLONG); 87 kstat_named_init(&dkp->ds_mcr[0].ds_lowater, "mcr1lowater", 88 KSTAT_DATA_ULONGLONG); 89 kstat_named_init(&dkp->ds_mcr[0].ds_hiwater, "mcr1hiwater", 90 KSTAT_DATA_ULONGLONG); 91 kstat_named_init(&dkp->ds_mcr[0].ds_maxreqs, "mcr1maxreqs", 92 KSTAT_DATA_ULONGLONG); 93 kstat_named_init(&dkp->ds_mcr[1].ds_submit, "mcr2submit", 94 KSTAT_DATA_ULONGLONG); 95 kstat_named_init(&dkp->ds_mcr[1].ds_flowctl, "mcr2flowctl", 96 KSTAT_DATA_ULONGLONG); 97 kstat_named_init(&dkp->ds_mcr[1].ds_lowater, "mcr2lowater", 98 KSTAT_DATA_ULONGLONG); 99 kstat_named_init(&dkp->ds_mcr[1].ds_hiwater, "mcr2hiwater", 100 KSTAT_DATA_ULONGLONG); 101 kstat_named_init(&dkp->ds_mcr[1].ds_maxreqs, "mcr2maxreqs", 102 KSTAT_DATA_ULONGLONG); 103 #ifdef DS_RC4JOBS 104 /* rc4 */ 105 kstat_named_init(&dkp->ds_algs[DS_RC4JOBS], "rc4jobs", 106 KSTAT_DATA_ULONGLONG); 107 #endif 108 #ifdef DS_RC4BYTES 109 kstat_named_init(&dkp->ds_algs[DS_RC4BYTES], "rc4bytes", 110 KSTAT_DATA_ULONGLONG); 111 #endif 112 /* 3des */ 113 kstat_named_init(&dkp->ds_algs[DS_3DESJOBS], "3desjobs", 114 KSTAT_DATA_ULONGLONG); 115 kstat_named_init(&dkp->ds_algs[DS_3DESBYTES], "3desbytes", 116 KSTAT_DATA_ULONGLONG); 117 /* rsa */ 118 kstat_named_init(&dkp->ds_algs[DS_RSAPUBLIC], "rsapublic", 119 KSTAT_DATA_ULONGLONG); 120 kstat_named_init(&dkp->ds_algs[DS_RSAPRIVATE], "rsaprivate", 121 KSTAT_DATA_ULONGLONG); 122 /* dsa */ 123 kstat_named_init(&dkp->ds_algs[DS_DSASIGN], "dsasign", 124 KSTAT_DATA_ULONGLONG); 125 kstat_named_init(&dkp->ds_algs[DS_DSAVERIFY], "dsaverify", 126 KSTAT_DATA_ULONGLONG); 127 #ifdef DS_DHPUBLIC 128 /* diffie-hellman */ 129 kstat_named_init(&dkp->ds_algs[DS_DHPUBLIC], "dhpublic", 130 KSTAT_DATA_ULONGLONG); 131 #endif 132 #ifdef DS_DHSECRET 133 kstat_named_init(&dkp->ds_algs[DS_DHSECRET], "dhsecret", 134 KSTAT_DATA_ULONGLONG); 135 #endif 136 /* random number jobs */ 137 kstat_named_init(&dkp->ds_algs[DS_RNGJOBS], "rngjobs", 138 KSTAT_DATA_ULONGLONG); 139 kstat_named_init(&dkp->ds_algs[DS_RNGBYTES], "rngbytes", 140 KSTAT_DATA_ULONGLONG); 141 kstat_named_init(&dkp->ds_algs[DS_RNGSHA1JOBS], "rngsha1jobs", 142 KSTAT_DATA_ULONGLONG); 143 kstat_named_init(&dkp->ds_algs[DS_RNGSHA1BYTES], 144 "rngsha1bytes", KSTAT_DATA_ULONGLONG); 145 dca->dca_ksp->ks_update = dca_ksupdate; 146 dca->dca_ksp->ks_private = dca; 147 kstat_install(dca->dca_ksp); 148 } 149 } 150 151 /* 152 * Update Kstats. 153 */ 154 int 155 dca_ksupdate(kstat_t *ksp, int rw) 156 { 157 dca_t *dca; 158 dca_stat_t *dkp; 159 int i; 160 161 dca = (dca_t *)ksp->ks_private; 162 dkp = (dca_stat_t *)ksp->ks_data; 163 164 if (rw == KSTAT_WRITE) { 165 for (i = 0; i < DS_MAX; i++) { 166 dca->dca_stats[i] = dkp->ds_algs[i].value.ull; 167 } 168 for (i = MCR1; i <= MCR2; i++) { 169 WORKLIST(dca, i)->dwl_submit = 170 dkp->ds_mcr[i - 1].ds_submit.value.ull; 171 WORKLIST(dca, i)->dwl_flowctl = 172 dkp->ds_mcr[i - 1].ds_flowctl.value.ull; 173 /* hiwater, lowater, and maxreqs are read only */ 174 } 175 } else { 176 /* handy status value */ 177 if (dca->dca_flags & DCA_FAILED) { 178 /* device has failed */ 179 (void) strcpy(dkp->ds_status.value.c, "fail"); 180 } else if ((WORKLIST(dca, MCR1)->dwl_drain) || 181 (WORKLIST(dca, MCR2)->dwl_drain)) { 182 /* device is draining for DR */ 183 (void) strcpy(dkp->ds_status.value.c, "drain"); 184 } else { 185 /* everything looks good */ 186 (void) strcpy(dkp->ds_status.value.c, "online"); 187 } 188 189 for (i = 0; i < DS_MAX; i++) { 190 dkp->ds_algs[i].value.ull = dca->dca_stats[i]; 191 } 192 for (i = MCR1; i <= MCR2; i++) { 193 dkp->ds_mcr[i - 1].ds_submit.value.ull = 194 WORKLIST(dca, i)->dwl_submit; 195 dkp->ds_mcr[i - 1].ds_flowctl.value.ull = 196 WORKLIST(dca, i)->dwl_flowctl; 197 dkp->ds_mcr[i - 1].ds_lowater.value.ull = 198 WORKLIST(dca, i)->dwl_lowater; 199 dkp->ds_mcr[i - 1].ds_hiwater.value.ull = 200 WORKLIST(dca, i)->dwl_hiwater; 201 dkp->ds_mcr[i - 1].ds_maxreqs.value.ull = 202 WORKLIST(dca, i)->dwl_reqspermcr; 203 } 204 } 205 return (0); 206 } 207