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Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (84 commits)
  [SCSI] be2iscsi: SGE Len == 64K
  [SCSI] be2iscsi: Remove premature free of cid
  [SCSI] be2iscsi: More time for FW
  [SCSI] libsas: fix bug for vacant phy
  [SCSI] sd: Fix overflow with big physical blocks
  [SCSI] st: add MTWEOFI to write filemarks without flushing drive buffer
  [SCSI] libsas: Don't issue commands to devices that have been hot-removed
  [SCSI] megaraid_sas: Add Online Controller Reset to MegaRAID SAS drive
  [SCSI] lpfc 8.3.17: Update lpfc driver version to 8.3.17
  [SCSI] lpfc 8.3.17: Replace function reset methodology
  [SCSI] lpfc 8.3.17: SCSI fixes
  [SCSI] lpfc 8.3.17: BSG fixes
  [SCSI] lpfc 8.3.17: SLI Additions and Fixes
  [SCSI] lpfc 8.3.17: Code Cleanup and Locking fixes
  [SCSI] zfcp: Remove scsi_cmnd->serial_number from debug traces
  [SCSI] ipr: fix array error logging
  [SCSI] aha152x: enable PCMCIA on 64bit
  [SCSI] scsi_dh_alua: Handle all states correctly
  [SCSI] cxgb4i: connection and ddp setting update
  [SCSI] cxgb3i: fixed connection over vlan
  ...
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@torvalds
torvalds committed Oct 23, 2010
2 parents 80c226f + 58ff4bd commit c70b529
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Showing 306 changed files with 39,146 additions and 44,940 deletions.
15 changes: 14 additions & 1 deletion Documentation/scsi/st.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ This file contains brief information about the SCSI tape driver.
The driver is currently maintained by Kai Mäkisara (email
[email protected])

Last modified: Sun Feb 24 21:59:07 2008 by kai.makisara
Last modified: Sun Aug 29 18:25:47 2010 by kai.makisara


BASICS
Expand Down Expand Up @@ -85,6 +85,17 @@ writing and the last operation has been a write. Two filemarks can be
optionally written. In both cases end of data is signified by
returning zero bytes for two consecutive reads.

Writing filemarks without the immediate bit set in the SCSI command block acts
as a synchronization point, i.e., all remaining data form the drive buffers is
written to tape before the command returns. This makes sure that write errors
are caught at that point, but this takes time. In some applications, several
consecutive files must be written fast. The MTWEOFI operation can be used to
write the filemarks without flushing the drive buffer. Writing filemark at
close() is always flushing the drive buffers. However, if the previous
operation is MTWEOFI, close() does not write a filemark. This can be used if
the program wants to close/open the tape device between files and wants to
skip waiting.

If rewind, offline, bsf, or seek is done and previous tape operation was
write, a filemark is written before moving tape.

Expand Down Expand Up @@ -301,6 +312,8 @@ MTBSR Space backward over count records.
MTFSS Space forward over count setmarks.
MTBSS Space backward over count setmarks.
MTWEOF Write count filemarks.
MTWEOFI Write count filemarks with immediate bit set (i.e., does not
wait until data is on tape)
MTWSM Write count setmarks.
MTREW Rewind tape.
MTOFFL Set device off line (often rewind plus eject).
Expand Down
4 changes: 3 additions & 1 deletion drivers/message/fusion/mptbase.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5945,8 +5945,10 @@ mpt_findImVolumes(MPT_ADAPTER *ioc)
goto out;

mem = kmalloc(iocpage2sz, GFP_KERNEL);
if (!mem)
if (!mem) {
rc = -ENOMEM;
goto out;
}

memcpy(mem, (u8 *)pIoc2, iocpage2sz);
ioc->raid_data.pIocPg2 = (IOCPage2_t *) mem;
Expand Down
5 changes: 3 additions & 2 deletions drivers/s390/scsi/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,8 @@
# Makefile for the S/390 specific device drivers
#

zfcp-objs := zfcp_aux.o zfcp_ccw.o zfcp_scsi.o zfcp_erp.o zfcp_qdio.o \
zfcp_fsf.o zfcp_dbf.o zfcp_sysfs.o zfcp_fc.o zfcp_cfdc.o
zfcp-objs := zfcp_aux.o zfcp_ccw.o zfcp_cfdc.o zfcp_dbf.o zfcp_erp.o \
zfcp_fc.o zfcp_fsf.o zfcp_qdio.o zfcp_scsi.o zfcp_sysfs.o \
zfcp_unit.o

obj-$(CONFIG_ZFCP) += zfcp.o
126 changes: 6 additions & 120 deletions drivers/s390/scsi/zfcp_aux.c
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Original file line number Diff line number Diff line change
Expand Up @@ -56,7 +56,6 @@ static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun)
struct ccw_device *cdev;
struct zfcp_adapter *adapter;
struct zfcp_port *port;
struct zfcp_unit *unit;

cdev = get_ccwdev_by_busid(&zfcp_ccw_driver, busid);
if (!cdev)
Expand All @@ -72,17 +71,11 @@ static void __init zfcp_init_device_configure(char *busid, u64 wwpn, u64 lun)
port = zfcp_get_port_by_wwpn(adapter, wwpn);
if (!port)
goto out_port;
flush_work(&port->rport_work);

unit = zfcp_unit_enqueue(port, lun);
if (IS_ERR(unit))
goto out_unit;

zfcp_erp_unit_reopen(unit, 0, "auidc_1", NULL);
zfcp_erp_wait(adapter);
flush_work(&unit->scsi_work);

out_unit:
zfcp_unit_add(port, lun);
put_device(&port->dev);

out_port:
zfcp_ccw_adapter_put(adapter);
out_ccw_device:
Expand Down Expand Up @@ -158,6 +151,9 @@ static int __init zfcp_module_init(void)
fc_attach_transport(&zfcp_transport_functions);
if (!zfcp_data.scsi_transport_template)
goto out_transport;
scsi_transport_reserve_device(zfcp_data.scsi_transport_template,
sizeof(struct zfcp_scsi_dev));


retval = misc_register(&zfcp_cfdc_misc);
if (retval) {
Expand Down Expand Up @@ -210,30 +206,6 @@ static void __exit zfcp_module_exit(void)

module_exit(zfcp_module_exit);

/**
* zfcp_get_unit_by_lun - find unit in unit list of port by FCP LUN
* @port: pointer to port to search for unit
* @fcp_lun: FCP LUN to search for
*
* Returns: pointer to zfcp_unit or NULL
*/
struct zfcp_unit *zfcp_get_unit_by_lun(struct zfcp_port *port, u64 fcp_lun)
{
unsigned long flags;
struct zfcp_unit *unit;

read_lock_irqsave(&port->unit_list_lock, flags);
list_for_each_entry(unit, &port->unit_list, list)
if (unit->fcp_lun == fcp_lun) {
if (!get_device(&unit->dev))
unit = NULL;
read_unlock_irqrestore(&port->unit_list_lock, flags);
return unit;
}
read_unlock_irqrestore(&port->unit_list_lock, flags);
return NULL;
}

/**
* zfcp_get_port_by_wwpn - find port in port list of adapter by wwpn
* @adapter: pointer to adapter to search for port
Expand All @@ -259,92 +231,6 @@ struct zfcp_port *zfcp_get_port_by_wwpn(struct zfcp_adapter *adapter,
return NULL;
}

/**
* zfcp_unit_release - dequeue unit
* @dev: pointer to device
*
* waits until all work is done on unit and removes it then from the unit->list
* of the associated port.
*/
static void zfcp_unit_release(struct device *dev)
{
struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);

put_device(&unit->port->dev);
kfree(unit);
}

/**
* zfcp_unit_enqueue - enqueue unit to unit list of a port.
* @port: pointer to port where unit is added
* @fcp_lun: FCP LUN of unit to be enqueued
* Returns: pointer to enqueued unit on success, ERR_PTR on error
*
* Sets up some unit internal structures and creates sysfs entry.
*/
struct zfcp_unit *zfcp_unit_enqueue(struct zfcp_port *port, u64 fcp_lun)
{
struct zfcp_unit *unit;
int retval = -ENOMEM;

get_device(&port->dev);

unit = zfcp_get_unit_by_lun(port, fcp_lun);
if (unit) {
put_device(&unit->dev);
retval = -EEXIST;
goto err_out;
}

unit = kzalloc(sizeof(struct zfcp_unit), GFP_KERNEL);
if (!unit)
goto err_out;

unit->port = port;
unit->fcp_lun = fcp_lun;
unit->dev.parent = &port->dev;
unit->dev.release = zfcp_unit_release;

if (dev_set_name(&unit->dev, "0x%016llx",
(unsigned long long) fcp_lun)) {
kfree(unit);
goto err_out;
}
retval = -EINVAL;

INIT_WORK(&unit->scsi_work, zfcp_scsi_scan_work);

spin_lock_init(&unit->latencies.lock);
unit->latencies.write.channel.min = 0xFFFFFFFF;
unit->latencies.write.fabric.min = 0xFFFFFFFF;
unit->latencies.read.channel.min = 0xFFFFFFFF;
unit->latencies.read.fabric.min = 0xFFFFFFFF;
unit->latencies.cmd.channel.min = 0xFFFFFFFF;
unit->latencies.cmd.fabric.min = 0xFFFFFFFF;

if (device_register(&unit->dev)) {
put_device(&unit->dev);
goto err_out;
}

if (sysfs_create_group(&unit->dev.kobj, &zfcp_sysfs_unit_attrs))
goto err_out_put;

write_lock_irq(&port->unit_list_lock);
list_add_tail(&unit->list, &port->unit_list);
write_unlock_irq(&port->unit_list_lock);

atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING, &unit->status);

return unit;

err_out_put:
device_unregister(&unit->dev);
err_out:
put_device(&port->dev);
return ERR_PTR(retval);
}

static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter)
{
adapter->pool.erp_req =
Expand Down
17 changes: 4 additions & 13 deletions drivers/s390/scsi/zfcp_ccw.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -46,8 +46,7 @@ static int zfcp_ccw_activate(struct ccw_device *cdev)
if (!adapter)
return 0;

zfcp_erp_modify_adapter_status(adapter, "ccresu1", NULL,
ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
"ccresu2", NULL);
zfcp_erp_wait(adapter);
Expand Down Expand Up @@ -164,14 +163,7 @@ static int zfcp_ccw_set_online(struct ccw_device *cdev)
BUG_ON(!zfcp_reqlist_isempty(adapter->req_list));
adapter->req_no = 0;

zfcp_erp_modify_adapter_status(adapter, "ccsonl1", NULL,
ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
"ccsonl2", NULL);
zfcp_erp_wait(adapter);

flush_work(&adapter->scan_work);

zfcp_ccw_activate(cdev);
zfcp_ccw_adapter_put(adapter);
return 0;
}
Expand Down Expand Up @@ -224,9 +216,8 @@ static int zfcp_ccw_notify(struct ccw_device *cdev, int event)
break;
case CIO_OPER:
dev_info(&cdev->dev, "The FCP device is operational again\n");
zfcp_erp_modify_adapter_status(adapter, "ccnoti3", NULL,
ZFCP_STATUS_COMMON_RUNNING,
ZFCP_SET);
zfcp_erp_set_adapter_status(adapter,
ZFCP_STATUS_COMMON_RUNNING);
zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
"ccnoti4", NULL);
break;
Expand Down
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