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scsi_id: export target port group

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For ALUA support it's useful to have the target port group number
of a device.

Signed-off-by: Hannes Reinecke <hare@suse.de>
This commit is contained in:
Hannes Reinecke 2010-09-06 11:00:22 +02:00 committed by Kay Sievers
parent 397e0169bb
commit db11b20e41
4 changed files with 40 additions and 15 deletions
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5
extras/scsi_id/scsi.h
View File

@ -54,6 +54,11 @@ struct scsi_ioctl_command {
#define SCSI_ID_T10_VENDOR 1
#define SCSI_ID_EUI_64 2
#define SCSI_ID_NAA 3
#define SCSI_ID_RELPORT 4
#define SCSI_ID_TGTGROUP 5
#define SCSI_ID_LUNGROUP 6
#define SCSI_ID_MD5 7
#define SCSI_ID_NAME 8
/*
* Supported NAA values. These fit in 4 bits, so the "don't care" value

3
extras/scsi_id/scsi_id.c
View File

@ -575,6 +575,9 @@ static int scsi_id(struct udev *udev, char *maj_min_dev)
printf("ID_WWN_WITH_EXTENSION=0x%s\n", dev_scsi.wwn);
}
}
if (dev_scsi.tgpt_group[0] != '\0') {
printf("ID_TARGET_PORT=%s\n", dev_scsi.tgpt_group);
}
if (dev_scsi.unit_serial_number[0] != '\0') {
printf("ID_SCSI_SERIAL=%s\n", dev_scsi.unit_serial_number);
}

3
extras/scsi_id/scsi_id.h
View File

@ -53,6 +53,9 @@ struct scsi_id_device {
/* NULs if not set - otherwise hex encoding using lower-case e.g. '0xe00000d80000' */
char wwn_vendor_extension[17];
/* NULs if not set - otherwise decimal number */
char tgpt_group[8];
};
extern int scsi_std_inquiry(struct udev *udev, struct scsi_id_device *dev_scsi, const char *devname);

44
extras/scsi_id/scsi_serial.c
View File

@ -48,6 +48,7 @@
* is normally one or some small number of descriptors.
*/
static const struct scsi_id_search_values id_search_list[] = {
{ SCSI_ID_TGTGROUP, SCSI_ID_NAA_DONT_CARE, SCSI_ID_BINARY },
{ SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG_EXTENDED, SCSI_ID_BINARY },
{ SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG_EXTENDED, SCSI_ID_ASCII },
{ SCSI_ID_NAA, SCSI_ID_NAA_IEEE_REG, SCSI_ID_BINARY },
@ -485,16 +486,20 @@ static int check_fill_0x83_id(struct udev *udev,
struct scsi_id_device *dev_scsi,
unsigned char *page_83,
const struct scsi_id_search_values
*id_search, char *serial, char *serial_short, int max_len,
char *wwn,
char *wwn_vendor_extension)
*id_search, char *serial, char *serial_short,
int max_len, char *wwn,
char *wwn_vendor_extension, char *tgpt_group)
{
int i, j, s, len;
/*
* ASSOCIATION must be with the device (value 0)
* or with the target port for SCSI_ID_TGTPORT
*/
if ((page_83[1] & 0x30) != 0)
if (page_83[1] & 0x30 == 0x10)
if (id_search->id_type != SCSI_ID_TGTGROUP)
return 1;
else if ((page_83[1] & 0x30) != 0)
return 1;
if ((page_83[1] & 0x0f) != id_search->id_type)
@ -536,6 +541,14 @@ static int check_fill_0x83_id(struct udev *udev,
return 1;
}
if (id_search->id_type == SCSI_ID_TGTGROUP && tgpt_group != NULL) {
unsigned int group;
group = ((unsigned int)page_83[6] << 8) | page_83[7];
sprintf(tgpt_group,"%x", group);
return 1;
}
serial[0] = hex_str[id_search->id_type];
/*
@ -572,12 +585,13 @@ static int check_fill_0x83_id(struct udev *udev,
strcpy(serial_short, &serial[s]);
if (id_search->id_type == SCSI_ID_NAA && wwn != NULL) {
strncpy(wwn, &serial[s], 16);
if (id_search->id_type == SCSI_ID_NAA && wwn != NULL) {
strncpy(wwn, &serial[s], 16);
if (wwn_vendor_extension != NULL) {
strncpy(wwn_vendor_extension, &serial[s + 16], 16);
}
}
}
return 0;
}
@ -609,14 +623,14 @@ static int check_fill_0x83_prespc3(struct udev *udev,
static int do_scsi_page83_inquiry(struct udev *udev,
struct scsi_id_device *dev_scsi, int fd,
char *serial, char *serial_short, int len,
char *unit_serial_number, char *wwn,
char *wwn_vendor_extension)
char *unit_serial_number, char *wwn,
char *wwn_vendor_extension, char *tgpt_group)
{
int retval;
unsigned int id_ind, j;
unsigned char page_83[SCSI_INQ_BUFF_LEN];
/* also pick up the page 80 serial number */
/* also pick up the page 80 serial number */
do_scsi_page80_inquiry(udev, dev_scsi, fd, NULL, unit_serial_number, MAX_SERIAL_LEN);
memset(page_83, 0, SCSI_INQ_BUFF_LEN);
@ -680,8 +694,8 @@ static int do_scsi_page83_inquiry(struct udev *udev,
dev_scsi, &page_83[j],
&id_search_list[id_ind],
serial, serial_short, len,
wwn,
wwn_vendor_extension);
wwn, wwn_vendor_extension,
tgpt_group);
dbg(udev, "%s id desc %d/%d/%d\n", dev_scsi->kernel,
id_search_list[id_ind].id_type,
id_search_list[id_ind].naa_type,
@ -895,7 +909,7 @@ int scsi_get_serial(struct udev *udev,
goto completed;
}
} else if (page_code == PAGE_83) {
if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension)) {
if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
retval = 1;
goto completed;
} else {
@ -911,7 +925,7 @@ int scsi_get_serial(struct udev *udev,
* conform to pre-SPC3 expectations.
*/
if (retval == 2) {
if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension)) {
if (do_scsi_page83_inquiry(udev, dev_scsi, fd, dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
retval = 1;
goto completed;
} else {
@ -951,7 +965,7 @@ int scsi_get_serial(struct udev *udev,
for (ind = 4; ind <= page0[3] + 3; ind++)
if (page0[ind] == PAGE_83)
if (!do_scsi_page83_inquiry(udev, dev_scsi, fd,
dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension)) {
dev_scsi->serial, dev_scsi->serial_short, len, dev_scsi->unit_serial_number, dev_scsi->wwn, dev_scsi->wwn_vendor_extension, dev_scsi->tgpt_group)) {
/*
* Success
*/