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[SCSI] scsi_dh_rdac: changes to collect the rdac debug information during the initialization

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Adding the code to read the debug information during initialization. This
patch collects the information about storage and controllers during
rdac_activate.

Signed-off-by: Babu Moger <babu.moger@lsi.com>
Reviewed-by: Vijay Chauhan <vijay.chauhan@lsi.com>
Reviewed-by: Bob Stankey <Robert.stankey@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Moger, Babu 2009-09-03 21:42:21 -06:00 committed by James Bottomley
parent 87b79a5327
commit 1527666e6a
1 changed files with 27 additions and 7 deletions
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34
drivers/scsi/device_handler/scsi_dh_rdac.c
View file

@ -112,6 +112,7 @@ struct c9_inquiry {
#define SUBSYS_ID_LEN 16
#define SLOT_ID_LEN 2
#define ARRAY_LABEL_LEN 31
struct c4_inquiry {
u8 peripheral_info;
@ -135,6 +136,8 @@ struct rdac_controller {
struct rdac_pg_legacy legacy;
struct rdac_pg_expanded expanded;
} mode_select;
u8 index;
u8 array_name[ARRAY_LABEL_LEN];
};
struct c8_inquiry {
u8 peripheral_info;
@ -303,7 +306,8 @@ static void release_controller(struct kref *kref)
kfree(ctlr);
}
static struct rdac_controller *get_controller(u8 *subsys_id, u8 *slot_id)
static struct rdac_controller *get_controller(u8 *subsys_id, u8 *slot_id,
char *array_name)
{
struct rdac_controller *ctlr, *tmp;
@ -324,6 +328,14 @@ static struct rdac_controller *get_controller(u8 *subsys_id, u8 *slot_id)
/* initialize fields of controller */
memcpy(ctlr->subsys_id, subsys_id, SUBSYS_ID_LEN);
memcpy(ctlr->slot_id, slot_id, SLOT_ID_LEN);
memcpy(ctlr->array_name, array_name, ARRAY_LABEL_LEN);
/* update the controller index */
if (slot_id[1] == 0x31)
ctlr->index = 0;
else
ctlr->index = 1;
kref_init(&ctlr->kref);
ctlr->use_ms10 = -1;
list_add(&ctlr->node, &ctlr_list);
@ -363,9 +375,10 @@ done:
return err;
}
static int get_lun(struct scsi_device *sdev, struct rdac_dh_data *h)
static int get_lun_info(struct scsi_device *sdev, struct rdac_dh_data *h,
char *array_name)
{
int err;
int err, i;
struct c8_inquiry *inqp;
err = submit_inquiry(sdev, 0xC8, sizeof(struct c8_inquiry), h);
@ -377,6 +390,11 @@ static int get_lun(struct scsi_device *sdev, struct rdac_dh_data *h)
inqp->page_id[2] != 'i' || inqp->page_id[3] != 'd')
return SCSI_DH_NOSYS;
h->lun = inqp->lun[7]; /* Uses only the last byte */
for(i=0; i<ARRAY_LABEL_LEN-1; ++i)
*(array_name+i) = inqp->array_user_label[(2*i)+1];
*(array_name+ARRAY_LABEL_LEN-1) = '\0';
}
return err;
}
@ -410,7 +428,7 @@ static int check_ownership(struct scsi_device *sdev, struct rdac_dh_data *h)
}
static int initialize_controller(struct scsi_device *sdev,
struct rdac_dh_data *h)
struct rdac_dh_data *h, char *array_name)
{
int err;
struct c4_inquiry *inqp;
@ -418,7 +436,8 @@ static int initialize_controller(struct scsi_device *sdev,
err = submit_inquiry(sdev, 0xC4, sizeof(struct c4_inquiry), h);
if (err == SCSI_DH_OK) {
inqp = &h->inq.c4;
h->ctlr = get_controller(inqp->subsys_id, inqp->slot_id);
h->ctlr = get_controller(inqp->subsys_id, inqp->slot_id,
array_name);
if (!h->ctlr)
err = SCSI_DH_RES_TEMP_UNAVAIL;
}
@ -652,6 +671,7 @@ static int rdac_bus_attach(struct scsi_device *sdev)
struct rdac_dh_data *h;
unsigned long flags;
int err;
char array_name[ARRAY_LABEL_LEN];
scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ sizeof(*h) , GFP_KERNEL);
@ -666,11 +686,11 @@ static int rdac_bus_attach(struct scsi_device *sdev)
h->lun = UNINITIALIZED_LUN;
h->state = RDAC_STATE_ACTIVE;
err = get_lun(sdev, h);
err = get_lun_info(sdev, h, array_name);
if (err != SCSI_DH_OK)
goto failed;
err = initialize_controller(sdev, h);
err = initialize_controller(sdev, h, array_name);
if (err != SCSI_DH_OK)
goto failed;