Usually, 'mdadm --detail-platform -e imsm' scans all the controllers
looking for IMSM capabilities. This patch provides the possibility
to specify a controller to scan, enabling custom usage by other
processes - especially with the --export switch.
$ mdadm --detail-platform
Platform : Intel(R) Matrix Storage Manager
Version : 9.5.0.1037
RAID Levels : raid0 raid1 raid10 raid5
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : not supported
Max Disks : 7
Max Volumes : 2 per array, 4 per controller
I/O Controller : /sys/devices/pci0000:00/0000:00:1f.2 (SATA)
$ mdadm --detail-platform /sys/devices/pci0000:00/0000:00:1f.2
Platform : Intel(R) Matrix Storage Manager
Version : 9.5.0.1037
RAID Levels : raid0 raid1 raid10 raid5
Chunk Sizes : 4k 8k 16k 32k 64k 128k
2TB volumes : supported
2TB disks : not supported
Max Disks : 7
Max Volumes : 2 per array, 4 per controller
I/O Controller : /sys/devices/pci0000:00/0000:00:1f.2 (SATA)
$ mdadm --detail-platform /sys/devices/pci0000:00/0000:00:1f.2 --export
MD_FIRMWARE_TYPE=imsm
IMSM_VERSION=9.5.0.1037
IMSM_SUPPORTED_RAID_LEVELS=raid0 raid1 raid10 raid5
IMSM_SUPPORTED_CHUNK_SIZES=4k 8k 16k 32k 64k 128k
IMSM_2TB_VOLUMES=yes
IMSM_2TB_DISKS=no
IMSM_MAX_DISKS=7
IMSM_MAX_VOLUMES_PER_ARRAY=2
IMSM_MAX_VOLUMES_PER_CONTROLLER=4
$ mdadm --detail-platform /sys/devices/pci0000:00/0000:00:1f.0 # This
isn't an IMSM-capable controller
mdadm: no active Intel(R) RAID controller found under
/sys/devices/pci0000:00/0000:00:1f.0
Signed-off-by: Maciej Naruszewicz <maciej.naruszewicz@xxxxxxxxx>
---
Create.c | 2 +-
Detail.c | 10 +++++-----
mdadm.8.in | 6 +++++-
mdadm.c | 14 ++++++++++++--
mdadm.h | 8 +++++---
super-intel.c | 45 +++++++++++++++++++++++++--------------------
util.c | 21 +++++++++++++++++++++
7 files changed, 74 insertions(+), 32 deletions(-)
diff --git a/Create.c b/Create.c
index 32683a8..2da07d0 100644
--- a/Create.c
+++ b/Create.c
@@ -492,7 +492,7 @@ int Create(struct supertype *st, char *mddev,
warn = 1;
}
- if (st->ss->detail_platform && st->ss->detail_platform(0, 1) != 0) {
+ if (st->ss->detail_platform && st->ss->detail_platform(0, 1, NULL) != 0) {
if (c->runstop != 1 || c->verbose >= 0)
pr_err("%s unable to enumerate platform support\n"
" array may not be compatible with hardware/firmware\n",
diff --git a/Detail.c b/Detail.c
index b0c31e6..57faf3c 100644
--- a/Detail.c
+++ b/Detail.c
@@ -616,7 +616,7 @@ out:
return rv;
}
-int Detail_Platform(struct superswitch *ss, int scan, int verbose, int
export)
+int Detail_Platform(struct superswitch *ss, int scan, int verbose, int
export, char *controller_path)
{
/* display platform capabilities for the given metadata format
* 'scan' in this context means iterate over all metadata types
@@ -625,9 +625,9 @@ int Detail_Platform(struct superswitch *ss, int
scan, int verbose, int export)
int err = 1;
if (ss && export && ss->export_detail_platform)
- err = ss->export_detail_platform(verbose);
+ err = ss->export_detail_platform(verbose, controller_path);
else if (ss && ss->detail_platform)
- err = ss->detail_platform(verbose, 0);
+ err = ss->detail_platform(verbose, 0, controller_path);
else if (ss) {
if (verbose > 0)
pr_err("%s metadata is platform independent\n",
@@ -653,9 +653,9 @@ int Detail_Platform(struct superswitch *ss, int
scan, int verbose, int export)
pr_err("%s metadata is platform independent\n",
meta->name ? : "[no name]");
} else if (export){
- err |= meta->export_detail_platform(verbose);
+ err |= meta->export_detail_platform(verbose, controller_path);
} else
- err |= meta->detail_platform(verbose, 0);
+ err |= meta->detail_platform(verbose, 0, controller_path);
}
return err;
diff --git a/mdadm.8.in b/mdadm.8.in
index 38c8bc8..8570e9d 100644
--- a/mdadm.8.in
+++ b/mdadm.8.in
@@ -1316,7 +1316,11 @@ Print details of one or more md devices.
.TP
.BR \-\-detail\-platform
Print details of the platform's RAID capabilities (firmware / hardware
-topology) for a given metadata format.
+topology) for a given metadata format. If used without argument, mdadm
+will scan all controllers looking for their capabilities. Otherwise, mdadm
+will only look at the controller specified by the argument in form of an
+absolute filepath or a link, e.g.
+.IR /sys/devices/pci0000:00/0000:00:1f.2 .
.TP
.BR \-Y ", " \-\-export
diff --git a/mdadm.c b/mdadm.c
index 3ee7ddb..2b42545 100644
--- a/mdadm.c
+++ b/mdadm.c
@@ -324,8 +324,18 @@ int main(int argc, char *argv[])
continue;
}
if (opt == 1) {
- /* an undecorated option - must be a device name.
+ /* an undecorated option - might be a device name
+ * or a controller
*/
+
+ if (devmode == DetailPlatform) {
+ if (c.controller_path)
+ pr_err("controller may only be specified once. %s ignored.\n",
+ optarg);
+ else
+ c.controller_path = optarg;
+ }
+
if (devs_found > 0 && mode == MANAGE && !devmode) {
pr_err("Must give one of -a/-r/-f"
" for subsequent devices at %s\n", optarg);
@@ -1344,7 +1354,7 @@ int main(int argc, char *argv[])
}
rv = Examine(devlist, &c, ss);
} else if (devmode == DetailPlatform) {
- rv = Detail_Platform(ss ? ss->ss : NULL, ss ? c.scan : 1, c.verbose,
c.export);
+ rv = Detail_Platform(ss ? ss->ss : NULL, ss ? c.scan : 1, c.verbose,
c.export, c.controller_path);
} else if (devlist == NULL) {
if (devmode == 'S' && c.scan)
rv = stop_scan(c.verbose);
diff --git a/mdadm.h b/mdadm.h
index 6d219f7..f55152b 100644
--- a/mdadm.h
+++ b/mdadm.h
@@ -394,6 +394,7 @@ struct context {
int freeze_reshape;
char *backup_file;
int invalid_backup;
+ char *controller_path;
};
struct shape {
@@ -654,8 +655,8 @@ extern struct superswitch {
void (*export_detail_super)(struct supertype *st);
/* Optional: platform hardware / firmware details */
- int (*detail_platform)(int verbose, int enumerate_only);
- int (*export_detail_platform)(int verbose);
+ int (*detail_platform)(int verbose, int enumerate_only, char
*controller_path);
+ int (*export_detail_platform)(int verbose, char *controller_path);
/* Used:
* to get uuid to storing in bitmap metadata
@@ -1122,7 +1123,7 @@ extern int Create(struct supertype *st, char *mddev,
struct context *c);
extern int Detail(char *dev, struct context *c);
-extern int Detail_Platform(struct superswitch *ss, int scan, int
verbose, int export);
+extern int Detail_Platform(struct superswitch *ss, int scan, int
verbose, int export, char *controller_path);
extern int Query(char *dev);
extern int Examine(struct mddev_dev *devlist, struct context *c,
struct supertype *forcest);
@@ -1176,6 +1177,7 @@ extern int open_dev_flags(int devnum, int flags);
extern int open_dev_excl(int devnum);
extern int is_standard(char *dev, int *nump);
extern int same_dev(char *one, char *two);
+extern int compare_paths (char* path1,char* path2);
extern int parse_auto(char *str, char *msg, int config);
extern struct mddev_ident *conf_get_ident(char *dev);
diff --git a/super-intel.c b/super-intel.c
index fdf441a..3ad5905 100644
--- a/super-intel.c
+++ b/super-intel.c
@@ -1833,7 +1833,7 @@ static void print_imsm_capability_export(const
struct imsm_orom *orom)
printf("IMSM_MAX_VOLUMES_PER_CONTROLLER=%d\n",orom->vphba);
}
-static int detail_platform_imsm(int verbose, int enumerate_only)
+static int detail_platform_imsm(int verbose, int enumerate_only, char
*controller_path)
{
/* There are two components to imsm platform support, the ahci SATA
* controller and the option-rom. To find the SATA controller we
@@ -1850,7 +1850,7 @@ static int detail_platform_imsm(int verbose, int
enumerate_only)
struct sys_dev *list, *hba;
int host_base = 0;
int port_count = 0;
- int result=0;
+ int result=1;
if (enumerate_only) {
if (check_env("IMSM_NO_PLATFORM"))
@@ -1864,6 +1864,8 @@ static int detail_platform_imsm(int verbose, int
enumerate_only)
result = 2;
break;
}
+ else
+ result = 0;
}
free_sys_dev(&list);
return result;
@@ -1880,34 +1882,38 @@ static int detail_platform_imsm(int verbose, int
enumerate_only)
print_found_intel_controllers(list);
for (hba = list; hba; hba = hba->next) {
+ if (controller_path != NULL &&
(compare_paths(hba->path,controller_path) != 0))
+ continue;
orom = find_imsm_capability(hba->type);
if (!orom)
pr_err("imsm capabilities not found for controller: %s (type %s)\n",
hba->path, get_sys_dev_type(hba->type));
- else
+ else {
+ result = 0;
print_imsm_capability(orom);
- }
-
- for (hba = list; hba; hba = hba->next) {
- printf(" I/O Controller : %s (%s)\n",
- hba->path, get_sys_dev_type(hba->type));
-
- if (hba->type == SYS_DEV_SATA) {
- host_base = ahci_get_port_count(hba->path, &port_count);
- if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) {
- if (verbose > 0)
- pr_err("failed to enumerate "
- "ports on SATA controller at %s.", hba->pci_id);
- result |= 2;
+ printf(" I/O Controller : %s (%s)\n",
+ hba->path, get_sys_dev_type(hba->type));
+ if (hba->type == SYS_DEV_SATA) {
+ host_base = ahci_get_port_count(hba->path, &port_count);
+ if (ahci_enumerate_ports(hba->path, port_count, host_base, verbose)) {
+ if (verbose > 0)
+ pr_err("failed to enumerate "
+ "ports on SATA controller at %s.\n", hba->pci_id);
+ result |= 2;
+ }
}
}
}
+ if (controller_path != NULL && result == 1)
+ pr_err("no active Intel(R) RAID "
+ "controller found under %s\n",controller_path);
+
free_sys_dev(&list);
return result;
}
-static int export_detail_platform_imsm(int verbose)
+static int export_detail_platform_imsm(int verbose, char *controller_path)
{
const struct imsm_orom *orom;
struct sys_dev *list, *hba;
@@ -1923,6 +1929,8 @@ static int export_detail_platform_imsm(int verbose)
}
for (hba = list; hba; hba = hba->next) {
+ if (controller_path != NULL &&
(compare_paths(hba->path,controller_path) != 0))
+ continue;
orom = find_imsm_capability(hba->type);
if (!orom) {
if (verbose > 0)
@@ -1934,9 +1942,6 @@ static int export_detail_platform_imsm(int verbose)
}
}
- if (result == 1 && verbose > 0)
- pr_err("IMSM_DETAIL_PLATFORM_ERROR=NO_IMSM_CAPABLE_DEVICES\n");
-
return result;
}
diff --git a/util.c b/util.c
index c63a232..4a7a1d1 100644
--- a/util.c
+++ b/util.c
@@ -1808,3 +1808,24 @@ struct mdinfo *container_choose_spares(struct
supertype *st,
}
return disks;
}
+
+/* Checks if paths point to the same device
+ * Returns 0 if they do.
+ * Returns 1 if they don't.
+ * Returns -1 if something went wrong,
+ * e.g. paths are empty or the files
+ * they point to don't exist */
+int compare_paths (char* path1, char* path2)
+{
+ struct stat st1,st2;
+
+ if (path1 == NULL || path2 == NULL)
+ return -1;
+ if (stat(path1,&st1) != 0)
+ return -1;
+ if (stat(path2,&st2) != 0)
+ return -1;
+ if ((st1.st_ino == st2.st_ino) && (st1.st_dev == st2.st_dev))
+ return 0;
+ return 1;
+}
--
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