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IMSM: Enable spanning between VMD domains 

Each VMD domain adds additional PCI domain. This patch
enables RAID creation with NVMe drives from different
VMD domains.

Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com>
Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
This commit is contained in:
Pawel Baldysiak 2016-10-21 11:37:50 +02:00 committed by Jes Sorensen
parent 20bee0f8db
commit 07cb1e57e0
1 changed files with 3 additions and 16 deletions
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19
super-intel.c
View File

@ -567,10 +567,6 @@ static int attach_hba_to_super(struct intel_super *super, struct sys_dev *device
if (device->type != hba->type)
return 2;
/* Always forbid spanning between VMD domains (seen as different controllers by mdadm) */
if (device->type == SYS_DEV_VMD && !path_attached_to_hba(device->path, hba->path))
return 2;
/* Multiple same type HBAs can be used if they share the same OROM */
const struct imsm_orom *device_orom = get_orom_by_device_id(device->dev_id);
@ -2023,10 +2019,10 @@ static int detail_platform_imsm(int verbose, int enumerate_only, char *controlle
for (entry = orom_entries; entry; entry = entry->next) {
if (entry->type == SYS_DEV_VMD) {
print_imsm_capability(&entry->orom);
for (hba = list; hba; hba = hba->next) {
if (hba->type == SYS_DEV_VMD) {
char buf[PATH_MAX];
print_imsm_capability(&entry->orom);
printf(" I/O Controller : %s (%s)\n",
vmd_domain_to_controller(hba, buf), get_sys_dev_type(hba->type));
if (print_vmd_attached_devs(hba)) {
@ -2034,9 +2030,9 @@ static int detail_platform_imsm(int verbose, int enumerate_only, char *controlle
pr_err("failed to get devices attached to VMD domain.\n");
result |= 2;
}
printf("\n");
}
}
printf("\n");
continue;
}
@ -6037,14 +6033,6 @@ count_volumes(struct intel_hba *hba, int dpa, int verbose)
else
return 0;
/* VMD has one orom entry for all domain, but spanning is not allowed.
* VMD arrays should be counted per domain (controller), so skip
* domains that are not the given one.
*/
if (hba->type == SYS_DEV_VMD &&
(strncmp(device->path, hba->path, strlen(device->path)) != 0))
continue;
devlist = get_devices(hba_path);
/* if no intel devices return zero volumes */
if (devlist == NULL)
@ -9306,8 +9294,7 @@ int validate_container_imsm(struct mdinfo *info)
return 1;
}
if (orom != orom2 ||
(hba->type == SYS_DEV_VMD && hba != hba2)) {
if (orom != orom2) {
pr_err("WARNING - IMSM container assembled with disks under different HBAs!\n"
" This operation is not supported and can lead to data loss.\n");
return 1;