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Diffstat (limited to 'drivers/scsi/device_handler')
-rw-r--r--drivers/scsi/device_handler/scsi_dh.c112
-rw-r--r--drivers/scsi/device_handler/scsi_dh_alua.c18
-rw-r--r--drivers/scsi/device_handler/scsi_dh_emc.c2
-rw-r--r--drivers/scsi/device_handler/scsi_dh_hp_sw.c7
-rw-r--r--drivers/scsi/device_handler/scsi_dh_rdac.c26
5 files changed, 66 insertions, 99 deletions
diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index b837c5b3c8f9..564e6ecd17c2 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -25,16 +25,9 @@
#include <scsi/scsi_dh.h>
#include "../scsi_priv.h"
-struct scsi_dh_devinfo_list {
- struct list_head node;
- char vendor[9];
- char model[17];
- struct scsi_device_handler *handler;
-};
-
static DEFINE_SPINLOCK(list_lock);
static LIST_HEAD(scsi_dh_list);
-static LIST_HEAD(scsi_dh_dev_list);
+static int scsi_dh_list_idx = 1;
static struct scsi_device_handler *get_device_handler(const char *name)
{
@@ -51,40 +44,18 @@ static struct scsi_device_handler *get_device_handler(const char *name)
return found;
}
-
-static struct scsi_device_handler *
-scsi_dh_cache_lookup(struct scsi_device *sdev)
+static struct scsi_device_handler *get_device_handler_by_idx(int idx)
{
- struct scsi_dh_devinfo_list *tmp;
- struct scsi_device_handler *found_dh = NULL;
+ struct scsi_device_handler *tmp, *found = NULL;
spin_lock(&list_lock);
- list_for_each_entry(tmp, &scsi_dh_dev_list, node) {
- if (!strncmp(sdev->vendor, tmp->vendor, strlen(tmp->vendor)) &&
- !strncmp(sdev->model, tmp->model, strlen(tmp->model))) {
- found_dh = tmp->handler;
+ list_for_each_entry(tmp, &scsi_dh_list, list) {
+ if (tmp->idx == idx) {
+ found = tmp;
break;
}
}
spin_unlock(&list_lock);
-
- return found_dh;
-}
-
-static int scsi_dh_handler_lookup(struct scsi_device_handler *scsi_dh,
- struct scsi_device *sdev)
-{
- int i, found = 0;
-
- for(i = 0; scsi_dh->devlist[i].vendor; i++) {
- if (!strncmp(sdev->vendor, scsi_dh->devlist[i].vendor,
- strlen(scsi_dh->devlist[i].vendor)) &&
- !strncmp(sdev->model, scsi_dh->devlist[i].model,
- strlen(scsi_dh->devlist[i].model))) {
- found = 1;
- break;
- }
- }
return found;
}
@@ -102,41 +73,14 @@ device_handler_match(struct scsi_device_handler *scsi_dh,
struct scsi_device *sdev)
{
struct scsi_device_handler *found_dh = NULL;
- struct scsi_dh_devinfo_list *tmp;
+ int idx;
- found_dh = scsi_dh_cache_lookup(sdev);
- if (found_dh)
- return found_dh;
+ idx = scsi_get_device_flags_keyed(sdev, sdev->vendor, sdev->model,
+ SCSI_DEVINFO_DH);
+ found_dh = get_device_handler_by_idx(idx);
- if (scsi_dh) {
- if (scsi_dh_handler_lookup(scsi_dh, sdev))
- found_dh = scsi_dh;
- } else {
- struct scsi_device_handler *tmp_dh;
-
- spin_lock(&list_lock);
- list_for_each_entry(tmp_dh, &scsi_dh_list, list) {
- if (scsi_dh_handler_lookup(tmp_dh, sdev))
- found_dh = tmp_dh;
- }
- spin_unlock(&list_lock);
- }
-
- if (found_dh) { /* If device is found, add it to the cache */
- tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);
- if (tmp) {
- strncpy(tmp->vendor, sdev->vendor, 8);
- strncpy(tmp->model, sdev->model, 16);
- tmp->vendor[8] = '\0';
- tmp->model[16] = '\0';
- tmp->handler = found_dh;
- spin_lock(&list_lock);
- list_add(&tmp->node, &scsi_dh_dev_list);
- spin_unlock(&list_lock);
- } else {
- found_dh = NULL;
- }
- }
+ if (scsi_dh && found_dh != scsi_dh)
+ found_dh = NULL;
return found_dh;
}
@@ -373,12 +317,25 @@ static int scsi_dh_notifier_remove(struct device *dev, void *data)
*/
int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
{
+ int i;
+
if (get_device_handler(scsi_dh->name))
return -EBUSY;
spin_lock(&list_lock);
+ scsi_dh->idx = scsi_dh_list_idx++;
list_add(&scsi_dh->list, &scsi_dh_list);
spin_unlock(&list_lock);
+
+ for (i = 0; scsi_dh->devlist[i].vendor; i++) {
+ scsi_dev_info_list_add_keyed(0,
+ scsi_dh->devlist[i].vendor,
+ scsi_dh->devlist[i].model,
+ NULL,
+ scsi_dh->idx,
+ SCSI_DEVINFO_DH);
+ }
+
bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
@@ -395,7 +352,7 @@ EXPORT_SYMBOL_GPL(scsi_register_device_handler);
*/
int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
{
- struct scsi_dh_devinfo_list *tmp, *pos;
+ int i;
if (!get_device_handler(scsi_dh->name))
return -ENODEV;
@@ -403,14 +360,14 @@ int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
scsi_dh_notifier_remove);
+ for (i = 0; scsi_dh->devlist[i].vendor; i++) {
+ scsi_dev_info_list_del_keyed(scsi_dh->devlist[i].vendor,
+ scsi_dh->devlist[i].model,
+ SCSI_DEVINFO_DH);
+ }
+
spin_lock(&list_lock);
list_del(&scsi_dh->list);
- list_for_each_entry_safe(pos, tmp, &scsi_dh_dev_list, node) {
- if (pos->handler == scsi_dh) {
- list_del(&pos->node);
- kfree(pos);
- }
- }
spin_unlock(&list_lock);
printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);
@@ -576,6 +533,10 @@ static int __init scsi_dh_init(void)
{
int r;
+ r = scsi_dev_info_add_list(SCSI_DEVINFO_DH, "SCSI Device Handler");
+ if (r)
+ return r;
+
r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
if (!r)
@@ -590,6 +551,7 @@ static void __exit scsi_dh_exit(void)
bus_for_each_dev(&scsi_bus_type, NULL, NULL,
scsi_dh_sysfs_attr_remove);
bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
+ scsi_dev_info_remove_list(SCSI_DEVINFO_DH);
}
module_init(scsi_dh_init);
diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 6b729324b8d3..7cae0bc85390 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -253,13 +253,15 @@ static void stpg_endio(struct request *req, int error)
{
struct alua_dh_data *h = req->end_io_data;
struct scsi_sense_hdr sense_hdr;
- unsigned err = SCSI_DH_IO;
+ unsigned err = SCSI_DH_OK;
if (error || host_byte(req->errors) != DID_OK ||
- msg_byte(req->errors) != COMMAND_COMPLETE)
+ msg_byte(req->errors) != COMMAND_COMPLETE) {
+ err = SCSI_DH_IO;
goto done;
+ }
- if (err == SCSI_DH_IO && h->senselen > 0) {
+ if (h->senselen > 0) {
err = scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
&sense_hdr);
if (!err) {
@@ -285,7 +287,8 @@ static void stpg_endio(struct request *req, int error)
print_alua_state(h->state));
}
done:
- blk_put_request(req);
+ req->end_io_data = NULL;
+ __blk_put_request(req->q, req);
if (h->callback_fn) {
h->callback_fn(h->callback_data, err);
h->callback_fn = h->callback_data = NULL;
@@ -303,7 +306,6 @@ done:
static unsigned submit_stpg(struct alua_dh_data *h)
{
struct request *rq;
- int err = SCSI_DH_RES_TEMP_UNAVAIL;
int stpg_len = 8;
struct scsi_device *sdev = h->sdev;
@@ -332,7 +334,7 @@ static unsigned submit_stpg(struct alua_dh_data *h)
rq->end_io_data = h;
blk_execute_rq_nowait(rq->q, NULL, rq, 1, stpg_endio);
- return err;
+ return SCSI_DH_OK;
}
/*
@@ -730,7 +732,9 @@ static const struct scsi_dh_devlist alua_dev_list[] = {
{"Pillar", "Axiom" },
{"Intel", "Multi-Flex"},
{"NETAPP", "LUN"},
+ {"NETAPP", "LUN C-Mode"},
{"AIX", "NVDISK"},
+ {"Promise", "VTrak"},
{NULL, NULL}
};
@@ -759,7 +763,7 @@ static int alua_bus_attach(struct scsi_device *sdev)
unsigned long flags;
int err = SCSI_DH_OK;
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index 6faf472f7537..48441f6908a4 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -650,7 +650,7 @@ static int clariion_bus_attach(struct scsi_device *sdev)
unsigned long flags;
int err;
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
index e3916641e627..b479f1eef968 100644
--- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c
+++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
@@ -225,7 +225,8 @@ static void start_stop_endio(struct request *req, int error)
}
}
done:
- blk_put_request(req);
+ req->end_io_data = NULL;
+ __blk_put_request(req->q, req);
if (h->callback_fn) {
h->callback_fn(h->callback_data, err);
h->callback_fn = h->callback_data = NULL;
@@ -338,8 +339,8 @@ static int hp_sw_bus_attach(struct scsi_device *sdev)
unsigned long flags;
int ret;
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
- + sizeof(struct hp_sw_dh_data) , GFP_KERNEL);
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ + sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach Failed\n",
HP_SW_NAME);
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 5be3ae15cb71..293c183dfe6d 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -281,11 +281,13 @@ static struct request *get_rdac_req(struct scsi_device *sdev,
}
static struct request *rdac_failover_get(struct scsi_device *sdev,
- struct rdac_dh_data *h)
+ struct rdac_dh_data *h, struct list_head *list)
{
struct request *rq;
struct rdac_mode_common *common;
unsigned data_size;
+ struct rdac_queue_data *qdata;
+ u8 *lun_table;
if (h->ctlr->use_ms10) {
struct rdac_pg_expanded *rdac_pg;
@@ -298,6 +300,7 @@ static struct request *rdac_failover_get(struct scsi_device *sdev,
rdac_pg->subpage_code = 0x1;
rdac_pg->page_len[0] = 0x01;
rdac_pg->page_len[1] = 0x28;
+ lun_table = rdac_pg->lun_table;
} else {
struct rdac_pg_legacy *rdac_pg;
@@ -307,11 +310,16 @@ static struct request *rdac_failover_get(struct scsi_device *sdev,
common = &rdac_pg->common;
rdac_pg->page_code = RDAC_PAGE_CODE_REDUNDANT_CONTROLLER;
rdac_pg->page_len = 0x68;
+ lun_table = rdac_pg->lun_table;
}
common->rdac_mode[1] = RDAC_MODE_TRANSFER_SPECIFIED_LUNS;
common->quiescence_timeout = RDAC_QUIESCENCE_TIME;
common->rdac_options = RDAC_FORCED_QUIESENCE;
+ list_for_each_entry(qdata, list, entry) {
+ lun_table[qdata->h->lun] = 0x81;
+ }
+
/* get request for block layer packet command */
rq = get_rdac_req(sdev, &h->ctlr->mode_select, data_size, WRITE);
if (!rq)
@@ -565,7 +573,6 @@ static void send_mode_select(struct work_struct *work)
int err, retry_cnt = RDAC_RETRY_COUNT;
struct rdac_queue_data *tmp, *qdata;
LIST_HEAD(list);
- u8 *lun_table;
spin_lock(&ctlr->ms_lock);
list_splice_init(&ctlr->ms_head, &list);
@@ -573,21 +580,12 @@ static void send_mode_select(struct work_struct *work)
ctlr->ms_sdev = NULL;
spin_unlock(&ctlr->ms_lock);
- if (ctlr->use_ms10)
- lun_table = ctlr->mode_select.expanded.lun_table;
- else
- lun_table = ctlr->mode_select.legacy.lun_table;
-
retry:
err = SCSI_DH_RES_TEMP_UNAVAIL;
- rq = rdac_failover_get(sdev, h);
+ rq = rdac_failover_get(sdev, h, &list);
if (!rq)
goto done;
- list_for_each_entry(qdata, &list, entry) {
- lun_table[qdata->h->lun] = 0x81;
- }
-
RDAC_LOG(RDAC_LOG_FAILOVER, sdev, "array %s, ctlr %d, "
"%s MODE_SELECT command",
(char *) h->ctlr->array_name, h->ctlr->index,
@@ -769,6 +767,7 @@ static const struct scsi_dh_devlist rdac_dev_list[] = {
{"DELL", "MD32xx"},
{"DELL", "MD32xxi"},
{"DELL", "MD36xxi"},
+ {"DELL", "MD36xxf"},
{"LSI", "INF-01-00"},
{"ENGENIO", "INF-01-00"},
{"STK", "FLEXLINE 380"},
@@ -800,7 +799,7 @@ static int rdac_bus_attach(struct scsi_device *sdev)
int err;
char array_name[ARRAY_LABEL_LEN];
- scsi_dh_data = kzalloc(sizeof(struct scsi_device_handler *)
+ scsi_dh_data = kzalloc(sizeof(*scsi_dh_data)
+ sizeof(*h) , GFP_KERNEL);
if (!scsi_dh_data) {
sdev_printk(KERN_ERR, sdev, "%s: Attach failed\n",
@@ -906,4 +905,5 @@ module_exit(rdac_exit);
MODULE_DESCRIPTION("Multipath LSI/Engenio RDAC driver");
MODULE_AUTHOR("Mike Christie, Chandra Seetharaman");
+MODULE_VERSION("01.00.0000.0000");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-07 16:48:56 +0300