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path: root/drivers/firewire/sbp2.c
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Diffstat (limited to 'drivers/firewire/sbp2.c')
-rw-r--r--drivers/firewire/sbp2.c131
1 files changed, 81 insertions, 50 deletions
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 80e95aa3bf14..b7e65d7eab64 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -52,7 +52,6 @@
#include <linux/workqueue.h>
#include <asm/byteorder.h>
-#include <asm/system.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -125,8 +124,6 @@ MODULE_PARM_DESC(workarounds, "Work around device bugs (default = 0"
", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
", or a combination)");
-static const char sbp2_driver_name[] = "sbp2";
-
/*
* We create one struct sbp2_logical_unit per SBP-2 Logical Unit Number Entry
* and one struct scsi_device per sbp2_logical_unit.
@@ -165,7 +162,6 @@ static void sbp2_queue_work(struct sbp2_logical_unit *lu, unsigned long delay)
*/
struct sbp2_target {
struct fw_unit *unit;
- const char *bus_id;
struct list_head lu_list;
u64 management_agent_address;
@@ -181,11 +177,21 @@ struct sbp2_target {
int blocked; /* ditto */
};
-static struct fw_device *target_device(struct sbp2_target *tgt)
+static struct fw_device *target_parent_device(struct sbp2_target *tgt)
{
return fw_parent_device(tgt->unit);
}
+static const struct device *tgt_dev(const struct sbp2_target *tgt)
+{
+ return &tgt->unit->device;
+}
+
+static const struct device *lu_dev(const struct sbp2_logical_unit *lu)
+{
+ return &lu->tgt->unit->device;
+}
+
/* Impossible login_id, to detect logout attempt before successful login */
#define INVALID_LOGIN_ID 0x10000
@@ -211,6 +217,7 @@ static struct fw_device *target_device(struct sbp2_target *tgt)
#define SBP2_CSR_UNIT_CHARACTERISTICS 0x3a
#define SBP2_CSR_FIRMWARE_REVISION 0x3c
#define SBP2_CSR_LOGICAL_UNIT_NUMBER 0x14
+#define SBP2_CSR_UNIT_UNIQUE_ID 0x8d
#define SBP2_CSR_LOGICAL_UNIT_DIRECTORY 0xd4
/* Management orb opcodes */
@@ -430,7 +437,8 @@ static void sbp2_status_write(struct fw_card *card, struct fw_request *request,
memcpy(status.data, payload + 8, length - 8);
if (STATUS_GET_SOURCE(status) == 2 || STATUS_GET_SOURCE(status) == 3) {
- fw_notify("non-orb related status write, not handled\n");
+ dev_notice(lu_dev(lu),
+ "non-ORB related status write, not handled\n");
fw_send_response(card, request, RCODE_COMPLETE);
return;
}
@@ -451,7 +459,7 @@ static void sbp2_status_write(struct fw_card *card, struct fw_request *request,
orb->callback(orb, &status);
kref_put(&orb->kref, free_orb); /* orb callback reference */
} else {
- fw_error("status write for unknown orb\n");
+ dev_err(lu_dev(lu), "status write for unknown ORB\n");
}
fw_send_response(card, request, RCODE_COMPLETE);
@@ -492,7 +500,7 @@ static void complete_transaction(struct fw_card *card, int rcode,
static void sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu,
int node_id, int generation, u64 offset)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_pointer orb_pointer;
unsigned long flags;
@@ -513,7 +521,7 @@ static void sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu,
static int sbp2_cancel_orbs(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_orb *orb, *next;
struct list_head list;
unsigned long flags;
@@ -552,7 +560,7 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
int generation, int function,
int lun_or_login_id, void *response)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_management_orb *orb;
unsigned int timeout;
int retval = -ENOMEM;
@@ -560,7 +568,7 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
if (function == SBP2_LOGOUT_REQUEST && fw_device_is_shutdown(device))
return 0;
- orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
+ orb = kzalloc(sizeof(*orb), GFP_NOIO);
if (orb == NULL)
return -ENOMEM;
@@ -612,20 +620,20 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
retval = -EIO;
if (sbp2_cancel_orbs(lu) == 0) {
- fw_error("%s: orb reply timed out, rcode=0x%02x\n",
- lu->tgt->bus_id, orb->base.rcode);
+ dev_err(lu_dev(lu), "ORB reply timed out, rcode 0x%02x\n",
+ orb->base.rcode);
goto out;
}
if (orb->base.rcode != RCODE_COMPLETE) {
- fw_error("%s: management write failed, rcode 0x%02x\n",
- lu->tgt->bus_id, orb->base.rcode);
+ dev_err(lu_dev(lu), "management write failed, rcode 0x%02x\n",
+ orb->base.rcode);
goto out;
}
if (STATUS_GET_RESPONSE(orb->status) != 0 ||
STATUS_GET_SBP_STATUS(orb->status) != 0) {
- fw_error("%s: error status: %d:%d\n", lu->tgt->bus_id,
+ dev_err(lu_dev(lu), "error status: %d:%d\n",
STATUS_GET_RESPONSE(orb->status),
STATUS_GET_SBP_STATUS(orb->status));
goto out;
@@ -648,7 +656,7 @@ static int sbp2_send_management_orb(struct sbp2_logical_unit *lu, int node_id,
static void sbp2_agent_reset(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
__be32 d = 0;
fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST,
@@ -665,7 +673,7 @@ static void complete_agent_reset_write_no_wait(struct fw_card *card,
static void sbp2_agent_reset_no_wait(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct fw_transaction *t;
static __be32 d;
@@ -704,7 +712,7 @@ static inline void sbp2_allow_block(struct sbp2_logical_unit *lu)
static void sbp2_conditionally_block(struct sbp2_logical_unit *lu)
{
struct sbp2_target *tgt = lu->tgt;
- struct fw_card *card = target_device(tgt)->card;
+ struct fw_card *card = target_parent_device(tgt)->card;
struct Scsi_Host *shost =
container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
unsigned long flags;
@@ -728,7 +736,7 @@ static void sbp2_conditionally_block(struct sbp2_logical_unit *lu)
static void sbp2_conditionally_unblock(struct sbp2_logical_unit *lu)
{
struct sbp2_target *tgt = lu->tgt;
- struct fw_card *card = target_device(tgt)->card;
+ struct fw_card *card = target_parent_device(tgt)->card;
struct Scsi_Host *shost =
container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
unsigned long flags;
@@ -753,7 +761,7 @@ static void sbp2_conditionally_unblock(struct sbp2_logical_unit *lu)
*/
static void sbp2_unblock(struct sbp2_target *tgt)
{
- struct fw_card *card = target_device(tgt)->card;
+ struct fw_card *card = target_parent_device(tgt)->card;
struct Scsi_Host *shost =
container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
unsigned long flags;
@@ -794,7 +802,7 @@ static int sbp2_lun2int(u16 lun)
*/
static void sbp2_set_busy_timeout(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
__be32 d = cpu_to_be32(SBP2_CYCLE_LIMIT | SBP2_RETRY_LIMIT);
fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST,
@@ -809,7 +817,7 @@ static void sbp2_login(struct work_struct *work)
struct sbp2_logical_unit *lu =
container_of(work, struct sbp2_logical_unit, work.work);
struct sbp2_target *tgt = lu->tgt;
- struct fw_device *device = target_device(tgt);
+ struct fw_device *device = target_parent_device(tgt);
struct Scsi_Host *shost;
struct scsi_device *sdev;
struct sbp2_login_response response;
@@ -833,8 +841,8 @@ static void sbp2_login(struct work_struct *work)
if (lu->retries++ < 5) {
sbp2_queue_work(lu, DIV_ROUND_UP(HZ, 5));
} else {
- fw_error("%s: failed to login to LUN %04x\n",
- tgt->bus_id, lu->lun);
+ dev_err(tgt_dev(tgt), "failed to login to LUN %04x\n",
+ lu->lun);
/* Let any waiting I/O fail from now on. */
sbp2_unblock(lu->tgt);
}
@@ -851,8 +859,8 @@ static void sbp2_login(struct work_struct *work)
<< 32) | be32_to_cpu(response.command_block_agent.low);
lu->login_id = be32_to_cpu(response.misc) & 0xffff;
- fw_notify("%s: logged in to LUN %04x (%d retries)\n",
- tgt->bus_id, lu->lun, lu->retries);
+ dev_notice(tgt_dev(tgt), "logged in to LUN %04x (%d retries)\n",
+ lu->lun, lu->retries);
/* set appropriate retry limit(s) in BUSY_TIMEOUT register */
sbp2_set_busy_timeout(lu);
@@ -919,7 +927,7 @@ static void sbp2_reconnect(struct work_struct *work)
struct sbp2_logical_unit *lu =
container_of(work, struct sbp2_logical_unit, work.work);
struct sbp2_target *tgt = lu->tgt;
- struct fw_device *device = target_device(tgt);
+ struct fw_device *device = target_parent_device(tgt);
int generation, node_id, local_node_id;
if (fw_device_is_shutdown(device))
@@ -943,7 +951,7 @@ static void sbp2_reconnect(struct work_struct *work)
smp_rmb(); /* get current card generation */
if (generation == device->card->generation ||
lu->retries++ >= 5) {
- fw_error("%s: failed to reconnect\n", tgt->bus_id);
+ dev_err(tgt_dev(tgt), "failed to reconnect\n");
lu->retries = 0;
PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
}
@@ -957,8 +965,8 @@ static void sbp2_reconnect(struct work_struct *work)
smp_wmb(); /* node IDs must not be older than generation */
lu->generation = generation;
- fw_notify("%s: reconnected to LUN %04x (%d retries)\n",
- tgt->bus_id, lu->lun, lu->retries);
+ dev_notice(tgt_dev(tgt), "reconnected to LUN %04x (%d retries)\n",
+ lu->lun, lu->retries);
sbp2_agent_reset(lu);
sbp2_cancel_orbs(lu);
@@ -997,6 +1005,13 @@ static int sbp2_add_logical_unit(struct sbp2_target *tgt, int lun_entry)
return 0;
}
+static void sbp2_get_unit_unique_id(struct sbp2_target *tgt,
+ const u32 *leaf)
+{
+ if ((leaf[0] & 0xffff0000) == 0x00020000)
+ tgt->guid = (u64)leaf[1] << 32 | leaf[2];
+}
+
static int sbp2_scan_logical_unit_dir(struct sbp2_target *tgt,
const u32 *directory)
{
@@ -1048,6 +1063,10 @@ static int sbp2_scan_unit_dir(struct sbp2_target *tgt, const u32 *directory,
return -ENOMEM;
break;
+ case SBP2_CSR_UNIT_UNIQUE_ID:
+ sbp2_get_unit_unique_id(tgt, ci.p - 1 + value);
+ break;
+
case SBP2_CSR_LOGICAL_UNIT_DIRECTORY:
/* Adjust for the increment in the iterator */
if (sbp2_scan_logical_unit_dir(tgt, ci.p - 1 + value) < 0)
@@ -1068,8 +1087,8 @@ static void sbp2_clamp_management_orb_timeout(struct sbp2_target *tgt)
unsigned int timeout = tgt->mgt_orb_timeout;
if (timeout > 40000)
- fw_notify("%s: %ds mgt_ORB_timeout limited to 40s\n",
- tgt->bus_id, timeout / 1000);
+ dev_notice(tgt_dev(tgt), "%ds mgt_ORB_timeout limited to 40s\n",
+ timeout / 1000);
tgt->mgt_orb_timeout = clamp_val(timeout, 5000, 40000);
}
@@ -1081,9 +1100,9 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
unsigned int w = sbp2_param_workarounds;
if (w)
- fw_notify("Please notify linux1394-devel@lists.sourceforge.net "
- "if you need the workarounds parameter for %s\n",
- tgt->bus_id);
+ dev_notice(tgt_dev(tgt),
+ "Please notify linux1394-devel@lists.sf.net "
+ "if you need the workarounds parameter\n");
if (w & SBP2_WORKAROUND_OVERRIDE)
goto out;
@@ -1103,9 +1122,9 @@ static void sbp2_init_workarounds(struct sbp2_target *tgt, u32 model,
}
out:
if (w)
- fw_notify("Workarounds for %s: 0x%x "
- "(firmware_revision 0x%06x, model_id 0x%06x)\n",
- tgt->bus_id, w, firmware_revision, model);
+ dev_notice(tgt_dev(tgt), "workarounds 0x%x "
+ "(firmware_revision 0x%06x, model_id 0x%06x)\n",
+ w, firmware_revision, model);
tgt->workarounds = w;
}
@@ -1121,6 +1140,10 @@ static int sbp2_probe(struct device *dev)
struct Scsi_Host *shost;
u32 model, firmware_revision;
+ /* cannot (or should not) handle targets on the local node */
+ if (device->is_local)
+ return -ENODEV;
+
if (dma_get_max_seg_size(device->card->device) > SBP2_MAX_SEG_SIZE)
BUG_ON(dma_set_max_seg_size(device->card->device,
SBP2_MAX_SEG_SIZE));
@@ -1133,7 +1156,6 @@ static int sbp2_probe(struct device *dev)
dev_set_drvdata(&unit->device, tgt);
tgt->unit = unit;
INIT_LIST_HEAD(&tgt->lu_list);
- tgt->bus_id = dev_name(&unit->device);
tgt->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4];
if (fw_device_enable_phys_dma(device) < 0)
@@ -1239,7 +1261,7 @@ static int sbp2_remove(struct device *dev)
kfree(lu);
}
scsi_remove_host(shost);
- fw_notify("released %s, target %d:0:0\n", tgt->bus_id, shost->host_no);
+ dev_notice(dev, "released target %d:0:0\n", shost->host_no);
scsi_host_put(shost);
return 0;
@@ -1261,7 +1283,7 @@ static const struct ieee1394_device_id sbp2_id_table[] = {
static struct fw_driver sbp2_driver = {
.driver = {
.owner = THIS_MODULE,
- .name = sbp2_driver_name,
+ .name = KBUILD_MODNAME,
.bus = &fw_bus_type,
.probe = sbp2_probe,
.remove = sbp2_remove,
@@ -1286,10 +1308,19 @@ static void sbp2_unmap_scatterlist(struct device *card_device,
static unsigned int sbp2_status_to_sense_data(u8 *sbp2_status, u8 *sense_data)
{
int sam_status;
+ int sfmt = (sbp2_status[0] >> 6) & 0x03;
+
+ if (sfmt == 2 || sfmt == 3) {
+ /*
+ * Reserved for future standardization (2) or
+ * Status block format vendor-dependent (3)
+ */
+ return DID_ERROR << 16;
+ }
- sense_data[0] = 0x70;
+ sense_data[0] = 0x70 | sfmt | (sbp2_status[1] & 0x80);
sense_data[1] = 0x0;
- sense_data[2] = sbp2_status[1];
+ sense_data[2] = ((sbp2_status[1] << 1) & 0xe0) | (sbp2_status[1] & 0x0f);
sense_data[3] = sbp2_status[4];
sense_data[4] = sbp2_status[5];
sense_data[5] = sbp2_status[6];
@@ -1325,7 +1356,7 @@ static void complete_command_orb(struct sbp2_orb *base_orb,
{
struct sbp2_command_orb *orb =
container_of(base_orb, struct sbp2_command_orb, base);
- struct fw_device *device = target_device(orb->lu->tgt);
+ struct fw_device *device = target_parent_device(orb->lu->tgt);
int result;
if (status != NULL) {
@@ -1433,7 +1464,7 @@ static int sbp2_scsi_queuecommand(struct Scsi_Host *shost,
struct scsi_cmnd *cmd)
{
struct sbp2_logical_unit *lu = cmd->device->hostdata;
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_command_orb *orb;
int generation, retval = SCSI_MLQUEUE_HOST_BUSY;
@@ -1442,7 +1473,7 @@ static int sbp2_scsi_queuecommand(struct Scsi_Host *shost,
* transfer direction not handled.
*/
if (cmd->sc_data_direction == DMA_BIDIRECTIONAL) {
- fw_error("Can't handle DMA_BIDIRECTIONAL, rejecting command\n");
+ dev_err(lu_dev(lu), "cannot handle bidirectional command\n");
cmd->result = DID_ERROR << 16;
cmd->scsi_done(cmd);
return 0;
@@ -1450,7 +1481,7 @@ static int sbp2_scsi_queuecommand(struct Scsi_Host *shost,
orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
if (orb == NULL) {
- fw_notify("failed to alloc orb\n");
+ dev_notice(lu_dev(lu), "failed to alloc ORB\n");
return SCSI_MLQUEUE_HOST_BUSY;
}
@@ -1550,7 +1581,7 @@ static int sbp2_scsi_abort(struct scsi_cmnd *cmd)
{
struct sbp2_logical_unit *lu = cmd->device->hostdata;
- fw_notify("%s: sbp2_scsi_abort\n", lu->tgt->bus_id);
+ dev_notice(lu_dev(lu), "sbp2_scsi_abort\n");
sbp2_agent_reset(lu);
sbp2_cancel_orbs(lu);
@@ -1590,7 +1621,7 @@ static struct device_attribute *sbp2_scsi_sysfs_attrs[] = {
static struct scsi_host_template scsi_driver_template = {
.module = THIS_MODULE,
.name = "SBP-2 IEEE-1394",
- .proc_name = sbp2_driver_name,
+ .proc_name = "sbp2",
.queuecommand = sbp2_scsi_queuecommand,
.slave_alloc = sbp2_scsi_slave_alloc,
.slave_configure = sbp2_scsi_slave_configure,
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-21 20:22:28 +0300