/*
- * Soft: Description here...
+ * Soft: multipath device mapper target autoconfig
*
* Version: $Id: main.h,v 0.0.1 2003/09/18 15:13:38 cvaroqui Exp $
*
#include <sys/types.h>
#include <sys/stat.h>
#include <linux/kdev_t.h>
-#include <errno.h>
#include <string.h>
#include <sys/ioctl.h>
-#include <libsysfs.h>
-#include <libdevmapper.h>
+#include <sysfs/libsysfs.h>
+#include "libdevmapper/libdevmapper.h"
#include "main.h"
+#include "devinfo.h"
+/* White list switch */
static int
-do_inq(int sg_fd, int cmddt, int evpd, unsigned int pg_op,
- void *resp, int mx_resp_len, int noisy)
-{
- int res;
- unsigned char inqCmdBlk[INQUIRY_CMDLEN] =
- { INQUIRY_CMD, 0, 0, 0, 0, 0 };
- unsigned char sense_b[SENSE_BUFF_LEN];
- struct sg_io_hdr io_hdr;
-
- if (cmddt)
- inqCmdBlk[1] |= 2;
- if (evpd)
- inqCmdBlk[1] |= 1;
- inqCmdBlk[2] = (unsigned char) pg_op;
- inqCmdBlk[4] = (unsigned char) mx_resp_len;
- memset(&io_hdr, 0, sizeof (struct sg_io_hdr));
- io_hdr.interface_id = 'S';
- io_hdr.cmd_len = sizeof (inqCmdBlk);
- io_hdr.mx_sb_len = sizeof (sense_b);
- io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
- io_hdr.dxfer_len = mx_resp_len;
- io_hdr.dxferp = resp;
- io_hdr.cmdp = inqCmdBlk;
- io_hdr.sbp = sense_b;
- io_hdr.timeout = DEF_TIMEOUT;
-
- if (ioctl(sg_fd, SG_IO, &io_hdr) < 0) {
- perror("SG_IO (inquiry) error");
- return -1;
- }
- res = sg_err_category3(&io_hdr);
- switch (res) {
- case SG_ERR_CAT_CLEAN:
- case SG_ERR_CAT_RECOVERED:
- return 0;
- default:
- return -1;
- }
-}
-
-static int
-do_tur(int fd)
-{
- unsigned char turCmdBlk[TUR_CMD_LEN] = { 0x00, 0, 0, 0, 0, 0 };
- struct sg_io_hdr io_hdr;
- unsigned char sense_buffer[32];
-
- memset(&io_hdr, 0, sizeof (struct sg_io_hdr));
- io_hdr.interface_id = 'S';
- io_hdr.cmd_len = sizeof (turCmdBlk);
- io_hdr.mx_sb_len = sizeof (sense_buffer);
- io_hdr.dxfer_direction = SG_DXFER_NONE;
- io_hdr.cmdp = turCmdBlk;
- io_hdr.sbp = sense_buffer;
- io_hdr.timeout = 20000;
- io_hdr.pack_id = 0;
- if (ioctl(fd, SG_IO, &io_hdr) < 0) {
- close(fd);
- return 0;
- }
- if (io_hdr.info & SG_INFO_OK_MASK) {
- return 0;
- }
- return 1;
-}
-
-static void
-sprint_wwid(char * buff, const char * str)
+get_unique_id(struct path * mypath)
{
int i;
- const char *p;
- char *cursor;
- unsigned char c;
-
- p = str;
- cursor = buff;
- for (i = 0; i <= WWID_SIZE / 2 - 1; i++) {
- c = *p++;
- sprintf(cursor, "%.2x", (int) (unsigned char) c);
- cursor += 2;
- }
- buff[WWID_SIZE - 1] = '\0';
-}
-
-static int
-get_lun_strings(int fd, struct path * mypath)
-{
- char buff[36];
-
- if (0 == do_inq(fd, 0, 0, 0, buff, 36, 1)) {
- memcpy(mypath->vendor_id, &buff[8], 8);
- memcpy(mypath->product_id, &buff[16], 16);
- memcpy(mypath->rev, &buff[32], 4);
- return 1;
- }
- return 0;
-}
-
-/*
-static int
-get_serial (int fd, char * str)
-{
- char buff[MX_ALLOC_LEN + 1];
- int len;
-
- if (0 == do_inq(fd, 0, 1, 0x80, buff, MX_ALLOC_LEN, 0)) {
- len = buff[3];
- if (len > 0) {
- memcpy(str, buff + 4, len);
- buff[len] = '\0';
+ static struct {
+ char * vendor;
+ char * product;
+ int iopolicy;
+ int (*getuid) (char *, char *);
+ } wlist[] = {
+ {"COMPAQ ", "HSV110 (C)COMPAQ", GROUP_BY_SERIAL, &get_evpd_wwid},
+ {"COMPAQ ", "MSA1000 ", GROUP_BY_SERIAL, &get_evpd_wwid},
+ {"COMPAQ ", "MSA1000 VOLUME ", GROUP_BY_SERIAL, &get_evpd_wwid},
+ {"DEC ", "HSG80 ", GROUP_BY_SERIAL, &get_evpd_wwid},
+ {"HP ", "HSV100 ", GROUP_BY_SERIAL, &get_evpd_wwid},
+ {"HP ", "A6189A ", MULTIBUS, &get_evpd_wwid},
+ {"HP ", "OPEN- ", MULTIBUS, &get_evpd_wwid},
+ {"DDN ", "SAN DataDirector", MULTIBUS, &get_evpd_wwid},
+ {"FSC ", "CentricStor ", MULTIBUS, &get_evpd_wwid},
+ {"HITACHI ", "DF400 ", MULTIBUS, &get_evpd_wwid},
+ {"HITACHI ", "DF500 ", MULTIBUS, &get_evpd_wwid},
+ {"HITACHI ", "DF600 ", MULTIBUS, &get_evpd_wwid},
+ {"IBM ", "ProFibre 4000R ", MULTIBUS, &get_evpd_wwid},
+ {"SGI ", "TP9100 ", MULTIBUS, &get_evpd_wwid},
+ {"SGI ", "TP9300 ", MULTIBUS, &get_evpd_wwid},
+ {"SGI ", "TP9400 ", MULTIBUS, &get_evpd_wwid},
+ {"SGI ", "TP9500 ", MULTIBUS, &get_evpd_wwid},
+ {NULL, NULL, 0, NULL},
+ };
+
+ for (i = 0; wlist[i].vendor; i++) {
+ if (strncmp(mypath->vendor_id, wlist[i].vendor, 8) == 0 &&
+ strncmp(mypath->product_id, wlist[i].product, 16) == 0) {
+ mypath->iopolicy = wlist[i].iopolicy;
+ if (!wlist[i].getuid(mypath->sg_dev, mypath->wwid))
+ return 0;
}
- return 1;
}
- return 0;
+ return 1;
}
-*/
-/* hardware vendor specifics : add support for new models below */
static int
-get_storageworks_wwid(int fd, char *str)
-{
- char buff[64];
-
- if (0 == do_inq(fd, 0, 1, 0x83, buff, sizeof (buff), 1)) {
- sprint_wwid(str, &buff[8]);
- return 1;
+blacklist (char * dev) {
+ int i;
+ static struct {
+ char * headstr;
+ int lengh;
+ } blist[] = {
+ {"cciss", 5},
+ {"hd", 2},
+ {"md", 2},
+ {"dm", 2},
+ {"sr", 2},
+ {"scd", 3},
+ {"ram", 3},
+ {"raw", 3},
+ {NULL, 0},
+ };
+
+ for (i = 0; blist[i].lengh; i++) {
+ if (strncmp(dev, blist[i].headstr, blist[i].lengh) == 0)
+ return 1;
}
return 0;
}
-/* White list switch */
-static int
-get_unique_id(int fd, struct path * mypath)
-{
- if (strncmp(mypath->product_id, "HSV110 (C)COMPAQ", 16) == 0 ||
- strncmp(mypath->product_id, "HSG80 ", 16) == 0) {
- get_storageworks_wwid(fd, mypath->wwid);
- return 0;
- }
-
- return 1;
-}
-
-static void
-basename(char * str1, char * str2)
-{
- char *p = str1 + (strlen(str1) - 1);
-
- while (*--p != '/')
- continue;
- strcpy(str2, ++p);
-}
-
static int
get_all_paths_sysfs(struct env * conf, struct path * all_paths)
{
int k=0;
- int sg_fd;
struct sysfs_directory * sdir;
struct sysfs_directory * devp;
- struct sysfs_dlink * linkp;
+ struct sysfs_link * linkp;
+ char refwwid[WWID_SIZE];
+ char empty_buff[WWID_SIZE];
char buff[FILE_NAME_SIZE];
+ char path[FILE_NAME_SIZE];
+ struct path curpath;
- char block_path[FILE_NAME_SIZE];
+ /* if called from hotplug, only consider the paths that relate */
+ /* to the device pointed by conf.hotplugdev */
+ memset(empty_buff, 0, WWID_SIZE);
+ memset(refwwid, 0, WWID_SIZE);
+ if (strncmp("/devices", conf->hotplugdev, 8) == 0) {
+ sprintf(buff, "%s%s/block",
+ conf->sysfs_path, conf->hotplugdev);
+ memset(conf->hotplugdev, 0, FILE_NAME_SIZE);
+
+ /* if called from hotplug but with no block, leave */
+ if (0 > readlink(buff, conf->hotplugdev, FILE_NAME_SIZE))
+ return 0;
+
+ basename(conf->hotplugdev, buff);
+ sprintf(curpath.sg_dev, "/dev/%s", buff);
+
+ get_lun_strings(curpath.vendor_id,
+ curpath.product_id,
+ curpath.rev,
+ curpath.sg_dev);
+ get_serial(curpath.serial, curpath.sg_dev);
+ if (!get_unique_id(&curpath))
+ return 0;
+ strcpy(refwwid, curpath.wwid);
+ memset(&curpath, 0, sizeof(path));
+ }
- sprintf(block_path, "%s/block", conf->sysfs_path);
- sdir = sysfs_open_directory(block_path);
+ sprintf(path, "%s/block", conf->sysfs_path);
+ sdir = sysfs_open_directory(path);
sysfs_read_directory(sdir);
- devp = sdir->subdirs;
- while (devp != NULL) {
+
+ dlist_for_each_data(sdir->subdirs, devp, struct sysfs_directory) {
+ if (blacklist(devp->name))
+ continue;
+
sysfs_read_directory(devp);
- linkp = devp->links;
- while (linkp != NULL) {
+
+ if(devp->links == NULL)
+ continue;
+
+ dlist_for_each_data(devp->links, linkp, struct sysfs_link) {
if (!strncmp(linkp->name, "device", 6))
break;
- linkp = linkp->next;
}
+
if (linkp == NULL) {
- devp = devp->next;
continue;
}
basename(devp->path, buff);
- sprintf(all_paths[k].sg_dev, "/dev/%s", buff);
- strcpy(all_paths[k].dev, all_paths[k].sg_dev);
- if ((sg_fd = open(all_paths[k].sg_dev, O_RDONLY)) < 0) {
- devp = devp->next;
+ sprintf(curpath.sg_dev, "/dev/%s", buff);
+
+ get_lun_strings(curpath.vendor_id,
+ curpath.product_id,
+ curpath.rev,
+ curpath.sg_dev);
+ get_serial(curpath.serial, curpath.sg_dev);
+ if(!get_unique_id(&curpath)) {
+ memset(&curpath, 0, sizeof(path));
continue;
}
- get_lun_strings(sg_fd, &all_paths[k]);
- get_unique_id(sg_fd, &all_paths[k]);
- all_paths[k].state = do_tur(sg_fd);
- close(sg_fd);
- basename(linkp->target->path, buff);
+
+ if (memcmp(empty_buff, refwwid, WWID_SIZE) != 0 &&
+ strncmp(curpath.wwid, refwwid, WWID_SIZE) != 0) {
+ memset(&curpath, 0, sizeof(path));
+ continue;
+ }
+
+ strcpy(all_paths[k].sg_dev, curpath.sg_dev);
+ strcpy(all_paths[k].dev, curpath.sg_dev);
+ strcpy(all_paths[k].wwid, curpath.wwid);
+ strcpy(all_paths[k].vendor_id, curpath.vendor_id);
+ strcpy(all_paths[k].product_id, curpath.product_id);
+ all_paths[k].iopolicy = curpath.iopolicy;
+
+ /* done with curpath, zero for reuse */
+ memset(&curpath, 0, sizeof(path));
+
+ basename(linkp->target, buff);
sscanf(buff, "%i:%i:%i:%i",
&all_paths[k].sg_id.host_no,
&all_paths[k].sg_id.channel,
&all_paths[k].sg_id.scsi_id,
&all_paths[k].sg_id.lun);
k++;
- devp = devp->next;
}
sysfs_close_directory(sdir);
-
return 0;
}
get_all_paths_nosysfs(struct env * conf, struct path * all_paths,
struct scsi_dev * all_scsi_ids)
{
- int k, i, sg_fd;
+ int k, i, fd;
char buff[FILE_NAME_SIZE];
char file_name[FILE_NAME_SIZE];
sprintf(buff, "%d", k);
strncat(file_name, buff, FILE_NAME_SIZE);
strcpy(all_paths[k].sg_dev, file_name);
- if ((sg_fd = open(file_name, O_RDONLY)) < 0)
+
+ get_lun_strings(all_paths[k].vendor_id,
+ all_paths[k].product_id,
+ all_paths[k].rev,
+ all_paths[k].sg_dev);
+ get_serial(all_paths[k].serial, all_paths[k].sg_dev);
+ if (!get_unique_id(&all_paths[k]))
continue;
- get_lun_strings(sg_fd, &all_paths[k]);
- get_unique_id(sg_fd, &all_paths[k]);
- all_paths[k].state = do_tur(sg_fd);
- if (0 > ioctl(sg_fd, SG_GET_SCSI_ID, &(all_paths[k].sg_id)))
+
+ if ((fd = open(all_paths[k].sg_dev, O_RDONLY)) < 0)
+ return 0;
+
+ if (0 > ioctl(fd, SG_GET_SCSI_ID, &(all_paths[k].sg_id)))
printf("device %s failed on sg ioctl, skip\n",
file_name);
- close(sg_fd);
+ close(fd);
for (i = 0; i < conf->max_devs; i++) {
if ((all_paths[k].sg_id.host_no ==
buff[0] = 'a' + (char) k;
buff[1] = '\0';
strcat(fname, buff);
- } else if (k <= 255) { /* assumes sequence goes x,y,z,aa,ab,ac etc */
+ } else if (k <= 255) {
+ /* assumes sequence goes x,y,z,aa,ab,ac etc */
big = k / 26;
little = k - (26 * big);
big = big - 1;
} else
strcat(fname, "xxxx");
- if ((fd = open(fname, O_RDONLY)) < 0)
+ if ((fd = open(fname, O_RDONLY)) < 0) {
+ if (conf->verbose)
+ fprintf(stderr, "can't open %s. mknod ?",
+ fname);
continue;
+ }
res = ioctl(fd, SCSI_IOCTL_GET_IDLUN, &my_scsi_id);
if (res < 0) {
all_paths[k].sg_id.host_no,
all_paths[k].sg_id.channel,
all_paths[k].sg_id.scsi_id, all_paths[k].sg_id.lun);
- printf("%s ", all_paths[k].sg_dev);
- printf("op:%i ", all_paths[k].state);
+ if(0 != strcmp(all_paths[k].sg_dev, all_paths[k].dev))
+ printf("%s ", all_paths[k].sg_dev);
printf("%s ", all_paths[k].dev);
printf("[%.16s]\n", all_paths[k].product_id);
}
memset(empty_buff, 0, WWID_SIZE);
for (k = 0; k < conf->max_devs - 1; k++) {
- /* skip this path if no unique id has been found */
+ /* skip this path for some reason */
+
+ /* 1. if path has no unique id */
if (memcmp(empty_buff, all_paths[k].wwid, WWID_SIZE) == 0)
continue;
- np = 0;
+ /* 2. if mp with this uid already instanciated */
for (i = 0; i <= nmp; i++) {
if (0 == strcmp(mp[i].wwid, all_paths[k].wwid))
already_done = 1;
}
-
if (already_done) {
already_done = 0;
continue;
}
+ /* at this point, we know we really got a new mp */
+ np = 0;
nmp++;
strcpy(mp[nmp].wwid, all_paths[k].wwid);
PINDEX(nmp,np) = k;
+ if (mp[nmp].size == 0)
+ mp[nmp].size = get_disk_size(all_paths[k].dev);
+
for (i = k + 1; i < conf->max_devs; i++) {
if (0 == strcmp(all_paths[k].wwid, all_paths[i].wwid)) {
np++;
return nmp;
}
-static long
-get_disk_size (struct env * conf, char * dev) {
- long size;
- int fd;
- char attr_path[FILE_NAME_SIZE];
- char buff[FILE_NAME_SIZE];
- char basedev[FILE_NAME_SIZE];
-
- if(conf->with_sysfs) {
- basename(dev, basedev);
- sprintf(attr_path, "%s/block/%s/size",
- conf->sysfs_path, basedev);
- if (0 > sysfs_read_attribute_value(attr_path, buff,
- FILE_NAME_SIZE * sizeof(char)))
- return -1;
- size = atoi(buff);
- return size;
- } else {
- if ((fd = open(dev, O_RDONLY)) < 0)
- return -1;
- if(!ioctl(fd, BLKGETSIZE, &size))
- return size;
+static void
+group_by_serial(struct multipath * mp, struct path * all_paths, char * str) {
+ int path_count, pg_count = 0;
+ int i, k;
+ int * bitmap;
+ char path_buff[FILE_NAME_SIZE];
+ char pg_buff[FILE_NAME_SIZE];
+ char * path_buff_p = &path_buff[0];
+ char * pg_buff_p = &pg_buff[0];
+
+ /* init the bitmap */
+ bitmap = malloc((mp->npaths + 1) * sizeof(int));
+ memset(bitmap, 0, (mp->npaths + 1) * sizeof(int));
+
+ for (i = 0; i <= mp->npaths; i++) {
+ if (bitmap[i])
+ continue;
+
+ /* here, we really got a new pg */
+ pg_count++;
+ path_count = 1;
+ memset(&path_buff, 0, FILE_NAME_SIZE * sizeof(char));
+ path_buff_p = &path_buff[0];
+
+ path_buff_p += sprintf(path_buff_p, " %s", all_paths[mp->pindex[i]].dev);
+ bitmap[i] = 1;
+
+ for (k = i + 1; k <= mp->npaths; k++) {
+ if (bitmap[k])
+ continue;
+ if (0 == strcmp(all_paths[mp->pindex[i]].serial,
+ all_paths[mp->pindex[k]].serial)) {
+ path_buff_p += sprintf(path_buff_p, " %s", all_paths[mp->pindex[k]].dev);
+ bitmap[k] = 1;
+ path_count++;
+ }
+ }
+ pg_buff_p += sprintf(pg_buff_p, " 1 round-robin %i 0%s",
+ path_count, path_buff);
}
- return -1;
+ sprintf(str, " %i%s", pg_count, pg_buff);
+ free(bitmap);
}
static int
-make_dm_node(char * str)
-{
+dm_simplecmd(int task, const char *name) {
int r = 0;
- dev_t dev;
- char buff[FILE_NAME_SIZE];
- int major, minor;
- struct dm_names * names;
- unsigned next = 0;
struct dm_task *dmt;
- if (!(dmt = dm_task_create(DM_DEVICE_LIST)))
+ if (!(dmt = dm_task_create(task)))
return 0;
- if (!dm_task_run(dmt))
- goto out;
-
- if (!(names = dm_task_get_names(dmt)))
- goto out;
-
- if (!names->dev) {
- r = 1;
+ if (!dm_task_set_name(dmt, name))
goto out;
- }
-
- do {
- if (0 == strcmp(names->name, str))
- break;
- next = names->next;
- names = (void *) names + next;
- } while (next);
- major = (int) MAJOR(names->dev);
- minor = (int) MINOR(names->dev);
-
- dev = major << sizeof(dev_t);
- dev = dev | minor;
- sprintf(buff, "/dev/mapper/%s", str);
- unlink(buff);
- mknod(buff, 0600 | S_IFBLK, dev);
+ r = dm_task_run(dmt);
out:
- dm_task_destroy(dmt);
- return r;
-
+ dm_task_destroy(dmt);
+ return r;
}
-/* future use ?
static int
-del_map(char * str) {
+dm_addmap(int task, const char *name, const char *params, long size) {
struct dm_task *dmt;
- if (!(dmt = dm_task_create(DM_DEVICE_REMOVE)))
+ if (!(dmt = dm_task_create(task)))
return 0;
- if (!dm_task_set_name(dmt, str))
- goto delout;
- if (!dm_task_run(dmt))
- goto delout;
- printf("Deleted device map : %s\n", str);
+ if (!dm_task_set_name(dmt, name))
+ goto addout;
- delout:
+ if (!dm_task_add_target(dmt, 0, size, DM_TARGET, params))
+ goto addout;
+
+ if (!dm_task_run(dmt))
+ goto addout;
+
+ addout:
dm_task_destroy(dmt);
return 1;
}
-*/
static int
-add_map(struct env * conf, struct path * all_paths,
+setup_map(struct env * conf, struct path * all_paths,
struct multipath * mp, int index, int op)
{
char params[255];
char * params_p;
- struct dm_task *dmt;
int i, np;
- long size = -1;
- if (!(dmt = dm_task_create(op)))
- return 0;
+ /* defaults for multipath target */
+ int dm_pg_prio = 1;
+ char * dm_ps_name = "round-robin";
+ int dm_ps_nr_args = 0;
- if (!dm_task_set_name(dmt, mp[index].wwid))
- goto addout;
params_p = ¶ms[0];
np = 0;
for (i=0; i<=mp[index].npaths; i++) {
- if ((1 == all_paths[PINDEX(index,i)].state) &&
- (0 == all_paths[PINDEX(index,i)].sg_id.scsi_type))
+ if (0 == all_paths[PINDEX(index,i)].sg_id.scsi_type)
np++;
}
- if (np == 0)
- goto addout;
- params_p += sprintf(params_p, "%i 32", np);
-
- for (i=0; i<=mp[index].npaths; i++) {
- if (( 0 == all_paths[PINDEX(index,i)].state) ||
- (0 != all_paths[PINDEX(index,i)].sg_id.scsi_type))
- continue;
- if (size < 0)
- size = get_disk_size(conf, all_paths[PINDEX(index,0)].dev);
- params_p += sprintf(params_p, " %s %i",
- all_paths[PINDEX(index,i)].dev, 0);
+
+ if (np < 1)
+ return 0;
+
+ if ((all_paths[PINDEX(index,0)].iopolicy == MULTIBUS &&
+ conf->iopolicy == -1) || conf->iopolicy == MULTIBUS) {
+ params_p += sprintf(params_p, " 1 %i %s %i %i",
+ dm_pg_prio, dm_ps_name, np, dm_ps_nr_args);
+
+ for (i=0; i<=mp[index].npaths; i++) {
+ if (0 != all_paths[PINDEX(index,i)].sg_id.scsi_type)
+ continue;
+ params_p += sprintf(params_p, " %s",
+ all_paths[PINDEX(index,i)].dev);
+ }
}
- if (size < 0)
- goto addout;
+ if ((all_paths[PINDEX(index,0)].iopolicy == FAILOVER &&
+ conf->iopolicy == -1) || conf->iopolicy == FAILOVER) {
+ params_p += sprintf(params_p, " %i", mp[index].npaths + 1);
+ for (i=0; i<=mp[index].npaths; i++) {
+ if (0 != all_paths[PINDEX(index,i)].sg_id.scsi_type)
+ continue;
+ params_p += sprintf(params_p, " %i %s ",
+ dm_pg_prio, dm_ps_name);
+ params_p += sprintf(params_p, "1 %i",
+ dm_ps_nr_args);
+ params_p += sprintf(params_p, " %s",
+ all_paths[PINDEX(index,i)].dev);
+ }
+ }
+
+ if ((all_paths[PINDEX(index,0)].iopolicy == GROUP_BY_SERIAL &&
+ conf->iopolicy == -1) || conf->iopolicy == GROUP_BY_SERIAL) {
+ group_by_serial(&mp[index], all_paths, params_p);
+ }
+
+ if (mp[index].size < 0)
+ return 0;
if (!conf->quiet) {
if (op == DM_DEVICE_RELOAD)
- printf("U|");
+ printf("U:");
if (op == DM_DEVICE_CREATE)
- printf("N|");
- printf("%s : 0 %li %s %s\n",
- mp[index].wwid, size, DM_TARGET, params);
+ printf("N:");
+ printf("%s:0 %li %s %s\n",
+ mp[index].wwid, mp[index].size, DM_TARGET, params);
}
- if (!dm_task_add_target(dmt, 0, size, DM_TARGET, params))
- goto addout;
-
- if (!dm_task_run(dmt))
- goto addout;
+ if (op == DM_DEVICE_RELOAD)
+ dm_simplecmd(DM_DEVICE_SUSPEND, mp[index].wwid);
+ dm_addmap(op, mp[index].wwid, params, mp[index].size);
- make_dm_node(mp[index].wwid);
+ if (op == DM_DEVICE_RELOAD)
+ dm_simplecmd(DM_DEVICE_RESUME, mp[index].wwid);
- addout:
- dm_task_destroy(dmt);
return 1;
}
-/*
-static int
-get_table(const char * str)
-{
- int r = 0;
- struct dm_task *dmt;
- void *next = NULL;
- uint64_t start, length;
- char *target_type = NULL;
- char *params;
-
- if (!(dmt = dm_task_create(DM_DEVICE_TABLE)))
- return 0;
-
- if (!dm_task_set_name(dmt, str))
- goto out;
-
- if (!dm_task_run(dmt))
- goto out;
-
- do {
- next = dm_get_next_target(dmt, next, &start, &length,
- &target_type, ¶ms);
- if (target_type) {
- printf("%" PRIu64 " %" PRIu64 " %s %s\n",
- start, length, target_type, params);
- }
- } while (next);
-
- r = 1;
-
- out:
- dm_task_destroy(dmt);
- return r;
-
-}
-*/
-
static int
map_present(char * str)
{
usage(char * progname)
{
fprintf(stderr, VERSION_STRING);
- fprintf(stderr, "Usage: %s [-v|-q] [-d] [-m max_devs]\n", progname);
+ fprintf(stderr, "Usage: %s [-v|-q] [-d] [-m max_devs]",
+ progname);
+ fprintf(stderr, "[-p failover|multibus|group_by_serial] [device]\n");
fprintf(stderr, "\t-v\t\tverbose, print all paths and multipaths\n");
fprintf(stderr, "\t-q\t\tquiet, no output at all\n");
fprintf(stderr, "\t-d\t\tdry run, do not create or update devmaps\n");
fprintf(stderr, "\t-m max_devs\tscan {max_devs} devices at most\n");
+ fprintf(stderr, "\t-p policy\tforce maps to specified policy :\n");
+ fprintf(stderr, "\t failover\t\t- 1 path per priority group\n");
+ fprintf(stderr, "\t multibus\t\t- all paths in 1 priority group\n");
+ fprintf(stderr, "\t group_by_serial\t- 1 priority group per serial\n");
+ fprintf(stderr, "\tdevice\t\tlimit scope to the device's multipath\n");
+ fprintf(stderr, "\t\t\t(hotplug-style $DEVPATH reference)\n");
exit(1);
}
conf.dry_run = 0; /* 1 == Do not Create/Update devmaps */
conf.verbose = 0; /* 1 == Print all_paths and mp */
conf.quiet = 0; /* 1 == Do not even print devmaps */
- conf.with_sysfs = 0; /* Default to compat / suboptimal behaviour */
-
- /* kindly provided by libsysfs */
- if (0 == sysfs_get_mnt_path(conf.sysfs_path, FILE_NAME_SIZE))
- conf.with_sysfs = 1;
+ conf.iopolicy = -1; /* Apply the defaults in get_unique_id() */
for (i = 1; i < argc; ++i) {
if (0 == strcmp("-v", argv[i])) {
conf.quiet = 1;
} else if (0 == strcmp("-d", argv[i]))
conf.dry_run = 1;
- else if (*argv[i] == '-') {
+ else if (0 == strcmp("-p", argv[i])) {
+ i++;
+ if (!strcmp(argv[i], "failover"))
+ conf.iopolicy = FAILOVER;
+ if (!strcmp(argv[i], "multibus"))
+ conf.iopolicy = MULTIBUS;
+ if (!strcmp(argv[i], "group_by_serial"))
+ conf.iopolicy = GROUP_BY_SERIAL;
+ } else if (*argv[i] == '-') {
fprintf(stderr, "Unknown switch: %s\n", argv[i]);
usage(argv[0]);
- } else if (*argv[i] != '-') {
- fprintf(stderr, "Unknown argument\n");
- usage(argv[0]);
- }
-
+ } else
+ strncpy(conf.hotplugdev, argv[i], FILE_NAME_SIZE);
}
/* dynamic allocations */
if (mp == NULL || all_paths == NULL || all_scsi_ids == NULL)
exit(1);
- if (!conf.with_sysfs) {
+ if (sysfs_get_mnt_path(conf.sysfs_path, FILE_NAME_SIZE)) {
get_all_scsi_ids(&conf, all_scsi_ids);
get_all_paths_nosysfs(&conf, all_paths, all_scsi_ids);
} else {
if (conf.verbose) {
print_all_path(&conf, all_paths);
- printf("\n");
+ fprintf(stdout, "\n");
print_all_mp(all_paths, mp, nmp);
- printf("\n");
+ fprintf(stdout, "\n");
}
if (conf.dry_run)
for (k=0; k<=nmp; k++) {
if (map_present(mp[k].wwid)) {
- add_map(&conf, all_paths, mp, k, DM_DEVICE_RELOAD);
+ setup_map(&conf, all_paths, mp, k, DM_DEVICE_RELOAD);
} else {
- add_map(&conf, all_paths, mp, k, DM_DEVICE_CREATE);
+ setup_map(&conf, all_paths, mp, k, DM_DEVICE_CREATE);
}
}
+
+ /* free allocs */
+ free(mp);
+ free(all_paths);
+ free(all_scsi_ids);
+
exit(0);
}
~ianmdlvl / elogind.git / blobdiff