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authorMoger, Babu <Babu.Moger@lsi.com>2009-09-03 21:42:21 -0600
committerJames Bottomley <James.Bottomley@suse.de>2009-09-12 09:35:31 -0500
commit1527666e6af977cc287e0f7088356c8be29b3f75 (patch)
tree76a1000fa6b98ad487f3f40fd579b8e90284e4fd /drivers/scsi/device_handler
parent87b79a53277c21a2de07106d0affa857bd79e1bb (diff)
downloadop-kernel-dev-1527666e6af977cc287e0f7088356c8be29b3f75.zip
op-kernel-dev-1527666e6af977cc287e0f7088356c8be29b3f75.tar.gz
[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>
Diffstat (limited to 'drivers/scsi/device_handler')
-rw-r--r--drivers/scsi/device_handler/scsi_dh_rdac.c34
1 files changed, 27 insertions, 7 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index c5e4476..9f1c4c2 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -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;
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