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rf_compat50.c revision 1.8
      1 /*	$NetBSD: rf_compat50.c,v 1.8 2019/02/05 23:28:02 christos Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2009 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Christos Zoulas.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *        This product includes software developed by the NetBSD
     21  *        Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/types.h>
     40 #include <sys/param.h>
     41 #include <sys/systm.h>
     42 #include <sys/module.h>
     43 
     44 #include <sys/compat_stub.h>
     45 
     46 #include <dev/raidframe/raidframeio.h>
     47 #include <dev/raidframe/raidframevar.h>
     48 
     49 #include "rf_raid.h"
     50 #include "rf_compat50.h"
     51 #include "rf_debugMem.h"
     52 
     53 typedef struct RF_Config50_s {
     54 	RF_RowCol_t		numRow, numCol, numSpare;
     55 	int32_t			devs[RF_MAXROW][RF_MAXCOL];
     56 	char			devnames[RF_MAXROW][RF_MAXCOL][50];
     57 	int32_t			spare_devs[RF_MAXSPARE];
     58 	char			spare_names[RF_MAXSPARE][50];
     59 	RF_SectorNum_t		sectPerSU;
     60 	RF_StripeNum_t		SUsPerPU;
     61 	RF_StripeNum_t		SUsPerRU;
     62 	RF_ParityConfig_t	parityConfig;
     63 	RF_DiskQueueType_t	diskQueueType;
     64 	char			maxOutstandingDiskReqs;
     65 	char			debugVars[RF_MAXDBGV][50];
     66 	unsigned int		layoutSpecificSize;
     67 	void		       *layoutSpecific;
     68 	int			force;
     69 } RF_Config50_t;
     70 
     71 typedef struct RF_RaidDisk50_s {
     72         char		 devname[56];
     73         RF_DiskStatus_t	 status;
     74         RF_RowCol_t	 spareRow;
     75         RF_RowCol_t	 spareCol;
     76         RF_SectorCount_t numBlocks;
     77         int     	 blockSize;
     78         RF_SectorCount_t partitionSize;
     79         int    		 auto_configured;
     80         int32_t		 dev;
     81 } RF_RaidDisk50_t;
     82 
     83 typedef struct RF_DeviceConfig50_s {
     84 	u_int			rows;
     85 	u_int			cols;
     86 	u_int			maxqdepth;
     87 	int			ndevs;
     88 	RF_RaidDisk50_t		devs[RF_MAX_DISKS];
     89 	int			nspares;
     90 	RF_RaidDisk50_t		spares[RF_MAX_DISKS];
     91 } RF_DeviceConfig50_t;
     92 
     93 static void
     94 rf_disk_to_disk50(RF_RaidDisk50_t *d50, const RF_RaidDisk_t *d)
     95 {
     96         memcpy(d50->devname, d->devname, sizeof(d50->devname));
     97         d50->status = d->status;
     98         d50->spareRow = 0;
     99         d50->spareCol = d->spareCol;
    100         d50->numBlocks = d->numBlocks;
    101         d50->blockSize = d->blockSize;
    102         d50->partitionSize = d->partitionSize;
    103         d50->auto_configured = d->auto_configured;
    104         d50->dev = d->dev;
    105 }
    106 
    107 static int
    108 rf_config50(struct raid_softc *rs, void *data)
    109 {
    110 	RF_Config50_t *u50_cfg, *k50_cfg;
    111 	RF_Config_t *k_cfg;
    112 	RF_Raid_t *raidPtr = rf_get_raid(rs);
    113 	size_t i, j;
    114 	int error;
    115 
    116 	if (raidPtr->valid) {
    117 		/* There is a valid RAID set running on this unit! */
    118 		printf("raid%d: Device already configured!\n", rf_get_unit(rs));
    119 		return EINVAL;
    120 	}
    121 
    122 	/* copy-in the configuration information */
    123 	/* data points to a pointer to the configuration structure */
    124 
    125 	u50_cfg = *((RF_Config50_t **) data);
    126 	RF_Malloc(k50_cfg, sizeof(RF_Config50_t), (RF_Config50_t *));
    127 	if (k50_cfg == NULL)
    128 		return ENOMEM;
    129 
    130 	error = copyin(u50_cfg, k50_cfg, sizeof(RF_Config50_t));
    131 	if (error) {
    132 		RF_Free(k50_cfg, sizeof(RF_Config50_t));
    133 		return error;
    134 	}
    135 	RF_Malloc(k_cfg, sizeof(RF_Config_t), (RF_Config_t *));
    136 	if (k_cfg == NULL) {
    137 		RF_Free(k50_cfg, sizeof(RF_Config50_t));
    138 		return ENOMEM;
    139 	}
    140 
    141 	k_cfg->numCol = k50_cfg->numCol;
    142 	k_cfg->numSpare = k50_cfg->numSpare;
    143 
    144 	for (i = 0; i < RF_MAXROW; i++)
    145 		for (j = 0; j < RF_MAXCOL; j++)
    146 			k_cfg->devs[i][j] = k50_cfg->devs[i][j];
    147 
    148 	memcpy(k_cfg->devnames, k50_cfg->devnames,
    149 	    sizeof(k_cfg->devnames));
    150 
    151 	for (i = 0; i < RF_MAXSPARE; i++)
    152 		k_cfg->spare_devs[i] = k50_cfg->spare_devs[i];
    153 
    154 	memcpy(k_cfg->spare_names, k50_cfg->spare_names,
    155 	    sizeof(k_cfg->spare_names));
    156 
    157 	k_cfg->sectPerSU = k50_cfg->sectPerSU;
    158 	k_cfg->SUsPerPU = k50_cfg->SUsPerPU;
    159 	k_cfg->SUsPerRU = k50_cfg->SUsPerRU;
    160 	k_cfg->parityConfig = k50_cfg->parityConfig;
    161 
    162 	memcpy(k_cfg->diskQueueType, k50_cfg->diskQueueType,
    163 	    sizeof(k_cfg->diskQueueType));
    164 
    165 	k_cfg->maxOutstandingDiskReqs = k50_cfg->maxOutstandingDiskReqs;
    166 
    167 	memcpy(k_cfg->debugVars, k50_cfg->debugVars,
    168 	    sizeof(k_cfg->debugVars));
    169 
    170 	k_cfg->layoutSpecificSize = k50_cfg->layoutSpecificSize;
    171 	k_cfg->layoutSpecific = k50_cfg->layoutSpecific;
    172 	k_cfg->force = k50_cfg->force;
    173 
    174 	RF_Free(k50_cfg, sizeof(RF_Config50_t));
    175 	return rf_construct(rs, k_cfg);
    176 }
    177 
    178 static int
    179 rf_get_info50(RF_Raid_t *raidPtr, void *data)
    180 {
    181 	RF_DeviceConfig50_t **ucfgp = data, *d_cfg;
    182 	size_t i, j;
    183 	int error;
    184 
    185 	if (!raidPtr->valid)
    186 		return ENODEV;
    187 
    188 	RF_Malloc(d_cfg, sizeof(RF_DeviceConfig50_t), (RF_DeviceConfig50_t *));
    189 
    190 	if (d_cfg == NULL)
    191 		return ENOMEM;
    192 
    193 	d_cfg->rows = 1; /* there is only 1 row now */
    194 	d_cfg->cols = raidPtr->numCol;
    195 	d_cfg->ndevs = raidPtr->numCol;
    196 	if (d_cfg->ndevs >= RF_MAX_DISKS) {
    197 		error = ENOMEM;
    198 		goto out;
    199 	}
    200 
    201 	d_cfg->nspares = raidPtr->numSpare;
    202 	if (d_cfg->nspares >= RF_MAX_DISKS) {
    203 		error = ENOMEM;
    204 		goto out;
    205 	}
    206 
    207 	d_cfg->maxqdepth = raidPtr->maxQueueDepth;
    208 	for (j = 0; j < d_cfg->cols; j++)
    209 		rf_disk_to_disk50(&d_cfg->devs[j], &raidPtr->Disks[j]);
    210 
    211 	for (j = d_cfg->cols, i = 0; i < d_cfg->nspares; i++, j++)
    212 		rf_disk_to_disk50(&d_cfg->spares[i], &raidPtr->Disks[j]);
    213 
    214 	error = copyout(d_cfg, *ucfgp, sizeof(RF_DeviceConfig50_t));
    215 
    216 out:
    217 	RF_Free(d_cfg, sizeof(RF_DeviceConfig50_t));
    218 	return error;
    219 }
    220 
    221 static int
    222 raidframe_ioctl_50(struct raid_softc *rs, u_long cmd, void *data)
    223 {
    224 	RF_Raid_t *raidPtr = rf_get_raid(rs);
    225 
    226 	switch (cmd) {
    227 	case RAIDFRAME_GET_INFO50:
    228 		if (!rf_inited(rs))
    229 			return ENXIO;
    230 		return rf_get_info50(raidPtr, data);
    231 
    232 	case RAIDFRAME_CONFIGURE50:
    233 		return rf_config50(rs, data);
    234 	default:
    235 		return EPASSTHROUGH;
    236 	}
    237 }
    238 
    239 static void
    240 raidframe_50_init(void)
    241 {
    242 
    243 	MODULE_SET_HOOK(raidframe_ioctl_50_hook, "raid50", raidframe_ioctl_50);
    244 }
    245 
    246 static void
    247 raidframe_50_fini(void)
    248 {
    249 
    250 	MODULE_UNSET_HOOK(raidframe_ioctl_50_hook);
    251 }
    252 
    253 MODULE(MODULE_CLASS_EXEC, compat_raid_50, "raid,compat_50,compat_raid_80");
    254 
    255 static int
    256 compat_raid_50_modcmd(modcmd_t cmd, void *arg)
    257 {
    258 
    259 	switch (cmd) {
    260 	case MODULE_CMD_INIT:
    261 		raidframe_50_init();
    262 		return 0;
    263 	case MODULE_CMD_FINI:
    264 		raidframe_50_fini();
    265 		return 0;
    266 	default:
    267 		return ENOTTY;
    268 	}
    269 }
    270