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

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