| 86a9668a8d29ea711613e1cb37efa68e7c4db564 |
|
15-Aug-2011 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: support for hardware data router
FICON Express8S supports hardware data router, which requires an
adapted qdio request format.
This part 2/2 exploits the functionality in zfcp.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
/drivers/s390/scsi/zfcp_def.h
|
| 038d9446a9e601d7972926ca69fee10eeda6f3c7 |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Add information to symbolic port name when running in NPIV mode
Query the FC symbolic port name for reporting in the fc_host sysfs and
enable the symbolic_name attribute in the fc_host sysfs. When running
in NPIV mode, extend the symbolic port name with the devno and the
hostname. This allows better identification of Linux systems for SAN
and storage administrators.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 1947c72a122a8c367fdfc650c39a98ba76cc573a |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move SCSI host and transport templates out of struct zfcp_data
The SCSI host and transport templates are the only members left in the
global zfcp_data struct. Move them out of zfcp_data and remove the
now unused zfcp_data struct. Also update the names of the register and
unregister functions to use the zfcp_scsi prefix.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 259afe2ed92c179e0a85da10ca63bf927b9851ca |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move qtcb kmem_cache to zfcp_fsf.c
Move the kmem_cache for allocating the qtcb to zfcp_fsf.c and rename
it accordingly.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| f9773229be6d8a3caa4c9dfc2961a63ab51a4e2a |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Use common FC kmem_cache for GPN_FT request
Switch the allocation of the GPN_FT request data to the FC kmem_cache
and remove the zfcp_gpn kmem_cache.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| fcf7e6144df60cd5082e5bc52f1ca5d1ca99a2d6 |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Allocate GID_PN data through new FC kmem_cache
Allocate the data for the GID_PN request through the new FC
kmem_cache. While updating the GID_PN code, also introduce a helper
function for initializing the CT header for FC nameserver requests.
Remove the "paranoia" check as well, the GID_PN request data does not
suddenly change.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 087897e36982ef8536dc9c8baed159a31517b5e6 |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Introduce new kmem_cache for FC request and response data
A data buffer that is passed to the hardware must not cross a page
boundary. zfcp uses a series of kmem_caches to align the data to not
cross a page boundary. Introduce a new kmem_cache for the FC requests
sent from the zfcp driver and use it for the ELS ADISC data. The goal
is to migrate to the FC kmem_cache in later patches and remove the
request specific kmem_caches.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| c7b279ae51942c14529bf2806685e9c658f28611 |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Replace kmem_cache for "status read" data
zfcp requires a mempool for the status read data blocks to resubmit
the "status read" requests at any time. Each status read data block
has the size of a page (4096 bytes) and needs to be placed in one
page.
Instead of having a kmem_cache for allocating page sized chunks, use
mempool_create_page_pool to create a mempool returning pages and
remove the zfcp kmem_cache.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 7c35e77b96b2f0af8c278c13d484d42dad3c7422 |
|
22-Feb-2011 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove unused flag ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| edaed859e63aac174fcc3fed81886b91bb124661 |
|
08-Sep-2010 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Replace status modifier functions.
Replace the zfcp_modify_<xxx>_status functions and its accompanying wrappers
with dedicated status modifier functions. This eases code readability and
maintenance.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| b62a8d9b45b971a67a0f8413338c230e3117dff5 |
|
08-Sep-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Use SCSI device data zfcp_scsi_dev instead of zfcp_unit
This is the large change to switch from using the data in
zfcp_unit to zfcp_scsi_dev. Keeping everything working requires doing
the switch in one piece. To ensure that no code keeps using the data
in zfcp_unit, this patch also removes the data from zfcp_unit that is
now being replaced with zfcp_scsi_dev.
For zfcp, the scsi_device together with zfcp_scsi_dev exist from the
call of slave_alloc to the call of slave_destroy. The data in
zfcp_scsi_dev is initialized in zfcp_scsi_slave_alloc and the LUN is
opened; the final shutdown for the LUN is run from slave_destroy.
Where the scsi_device or zfcp_scsi_dev is needed, the pointer to the
scsi_device is passed as function argument and inside the function
converted to the pointer to zfcp_scsi_dev; this avoids back and forth
conversion betweeen scsi_device and zfcp_scsi_dev.
While changing the function arguments from zfcp_unit to scsi_device,
the functions names are renamed form "unit" to "lun". This is to have
a seperation between zfcp_scsi_dev/LUN and the zfcp_unit; only code
referring to the remaining configuration information in zfcp_unit
struct uses "unit".
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 57c237731b92fadc7d44824276313ec330b1989b |
|
08-Sep-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Add zfcp private struct as SCSI device driver data
Add a new data structure zfcp_scsi_dev that holds zfcp private data
for each SCSI device. Use scsi_transport_reserve_device to let the
SCSI midlayer automatically allocate this with each SCSI device.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 339f4f4eab80caa6cf0d39fb057ad6ddb84ba91e |
|
16-Jul-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Trigger logging in the FCP channel on qdio error conditions
Exploit the cio siosl function to trigger logging in the FCP channel
on qdio error conditions. Add a helper function in zfcp_qdio to ensure
that tracing is only triggered once before calling qdio_shutdown.
Trigger in zfcp for hardware logs are:
- timeout for FSF requests to the FCP channel
- "no recommendation" status from FCP channel
- invalid FSF protocol status
- stalled outbound queue
- unknown request id on inbound queue
- QDIO_ERROR_SLSB_STATE
All of the above triggers run from the Linux qdio softirq context, so
no additional synchronization is necessary for the handling of the
ZFCP_STATUS_ADAPTER_SIOSL_ISSUED flag.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| dcc18f48a2f1a44c5e8848f30d0cf53a8066c62a |
|
16-Jul-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Enable data division support for FCP devices
Try to enable data division support for FCP devices and indicate in
the adapter status flag if it succeeded.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 2d1e547f7523514d1da449bcf08645fe13579378 |
|
16-Jul-2010 |
Sven Schuetz <sven@linux.vnet.ibm.com> |
[SCSI] zfcp: Post events through FC transport class
Post FC transport class netlink events for usage in the userspace,
e.g. for HBAAPI. Supported events are those required for the
polled events in HBAAPI.
- link up
- link down
- incoming RSCN
(events related to FC-AL are not supported, as zfcp has no support for FC-AL)
Signed-off-by: Sven Schuetz <sven@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 1bf3ff02ca6247b2d7c9ebda93002392bf60a61d |
|
16-Jul-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove SCSI device when removing unit
Configuring a LUN in zfcp, also creates a SCSI device. For
consistency, it makes sense to remove the SCSI device when the LUN is
deconfigured. Replace the flush_work with the call to
scsi_remove_device: scsi_remove_device also takes the scan_mutex that
synchronizes itself with any long running device discovery.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 64deb6efdc5504ce97b5c1c6f281fffbc150bd93 |
|
30-Apr-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Use status_read_buf_num provided by FCP channel
The FCP channel provides the number of status read buffers to issue.
Use the provided number instead of the hardcoded number in zfcp.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 1674b4054744c2cfd6573e43eca45d86ff581d0e |
|
30-Apr-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move sbale handling to zfcp_qdio files
Move the code accessing the qdio sbales and zfcp_qdio_req struct to
the zfcp_qdio files and provide helper functions for accessing the
qdio related parts.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 683229845f1780b10041ee7a1043fc8f10061455 |
|
30-Apr-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Report scatter-gather limits to SCSI and block layer
Instead of dealing with large segments in the scatter-gather lists in
zfcp_qdio.c, report the limits to the upper layers. With these limits
in place, the code for mapping large data blocks to multiple sbales
can be removed.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 34c2b712992540ca436e97432ffc57c84c8f8c18 |
|
17-Feb-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Introduce header file for qdio structs and inline functions
Move the qdio related structs and some helper functions to a new
zfcp_qdio.h header file. While doing this, rename the struct
zfcp_queue_req to zfcp_qdio_req to adhere to the naming scheme used in
zfcp. This allows a better seperation of the qdio code and inlining
the helper functions will save some function calls.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 615f59e0daaf56e43dcaaf3ea228967d9bc21584 |
|
17-Feb-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Rename sysfs_device attribute to dev in zfcp_unit and zfcp_port
Kernel code uses dev as short name for the struct device. Rename the
sysfs_device in zfcp_unit and zfcp_port to match this convention.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| b6bd2fb92a7bb9f1f3feecd9945c21e6c227dd51 |
|
17-Feb-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move FSF request tracking code to new file
Move the code for tracking FSF requests to new file to have this code
in one place. The functions for adding and removing requests on the
I/O path are already inline. The alloc and free functions are only
called once, so it does not hurt to inline them and add them to the
same file.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934 |
|
17-Feb-2010 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove function zfcp_reqlist_find_safe
Always use the FSF request id as a reference to the FSF request. With
this change the function zfcp_reqlist_find_safe is no longer needed
and can be removed.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 54987386ee3790f3900de4df2ed4deb0e18dfc9f |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove flag ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP
The flag ZFCP_STATUS_FSFREQ_TMFUNCNOTSUPP is never set and hence can
be removed. This is a leftover from the time when zfcp had to decide
whether the target supports a "logical unit reset" or not. Nowadays,
the SCSI midlayer calls the eh_device_reset_handler or the
eh_target_reset_handler and zfcp simply maps this to a "logical unit
reset" or a "target reset".
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 4c571c659e9d41332b6981ca5379047681ce9d2f |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Update FSF error reporting
The SCSI midlayer retries commands based on the remote port state and
the command status reported by the driver. Returning
DID_TRANSPORT_DISRUPTED is a better approach, use this for reporting
FSF errors back to the SCSI midlayer. See
http://marc.info/?l=linux-scsi&m=125668044215051&w=2 as reference.
There is also no need in special treatment of ABORTED commands, so
remove the ZFCP_STATUS_FSFREQ_ABORTED, the commands are then returned
with DID_TRANSPORT_DISRUPTED.
Also remove the ZFCP_STATUS_FSFREQ_RETRY: It is useless, no retry is
happening in the FSF layer and nobody checks the state of this flag.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| ee744622c65cd66824e8dd1b9509e515c800de14 |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Improve ELS ADISC handling
Introduce kmem_cache for ELS ADISC data to guarantee the required
hardware alignment and free the allocated memory in case the send
failes.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 7c7dc196814b9e1d5cc254dc579a5fa78ae524f7 |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Simplify handling of ct and els requests
Remove some redundancies in FC related code and trace:
- drop redundant data from SAN trace (local s_id that only changes
during link down, ls_code that is already part of payload, d_id in
ct response trace that is always the same as in ct request trace)
- use one common fsf struct to hold zfcp data for ct and els requests
- leverage common fsf struct for FC passthrough job data, allocate it
with dd_bsg_data for passthrough requests and unify common code for
ct and els passthrough request
- simplify callback handling in zfcp_fc
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 800c0cad962dcf630cabf3efdc5983619e73d4c9 |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove ZFCP_DID_MASK
Instead of assigning 4 bytes with the highest byte masked out, use a 3
byte array with the ntoh24 and h24ton helper functions, thus
eliminating the need for the ZFCP_DID_MASK.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| bd0072ecc449fb2ea8f6a2c9f6ff308f3ae0b078 |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move WKA port to zfcp FC code
The well-known-address (WKA) port handling code is part of the FC code
in zfcp. Move everything WKA related to the zfcp_fc files and use the
common zfcp_fc prefix for structs and functions. Drop the unused key
management service while renaming the struct, no request could ever
reach this service in zfcp and it is obsolete anyway.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| dbf5dfe9dbcecf159139eec25ad256738cbc3715 |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Use common code definitions for FC CT structs
Use common code definitions for FC GPN_FT and GID_PN
instead of inventing private ones. Move the private structs still
required inside zfcp to zfcp_fc header file.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 9d05ce2c0a6704ff84df02cbb3baef94fcac4f5d |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Use common code definitions for FC ELS structs
Use common code definitions for FC plogi, logo, rscn and adisc structs
instead of inventing private ones. Move the private struct for issuing
ELS ADISC inside zfcp to zfcp_fc header file.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 4318e08c84e4916ac463002ffb7f9901ddb3c385 |
|
24-Nov-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Update FCP protocol related code
Use common data structures for FCP CMND, FCP RSP and related
definitions and remove zfcp private definitions. Split the FCP CMND
setup and FCP RSP evaluation code in seperate functions. Use inline
functions to not negatively impact the I/O path.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 6b183334c23969d52d4d9f775da554480d05ca4d |
|
24-Nov-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Remove STATUS_COMMON_REMOVE flag as it is not required anymore
The flag ZFCP_STATUS_COMMON_REMOVE was used to indicate that a
resource is not ready to be used or about to be removed from the
system. This is now better done by an improved list handling
and therefore the additional indicator is not required anymore.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| de3dc57214a1466034ecc4d4ffb10331d34c09a3 |
|
24-Nov-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Remove global config_mutex
The global config_mutex was required for the serialization of a
configuration change within the zfcp driver. This global locking is
now obsolete and can be removed. The requirement of serializing the
access to a zfcp_adapter reference via a ccw_device is realized wth a
static spinlock.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| f3450c7b917201bb49d67032e9f60d5125675d6a |
|
24-Nov-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Replace local reference counting with common kref
Replace the local reference counting by already available mechanisms
offered by kref. Where possible existing device structures were used,
including the same functionality.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| ecf0c7721b104c0ce9c8ca534c911f6310cf92a8 |
|
24-Nov-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Replace global config_lock with local list locks
The global config_lock was used to protect the configuration organized
in independent lists. It is not necessary to have a lock on driver
level for this purpose. This patch replaces the global config_lock
with a set of local list locks.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 41e05a12c7aae16f0381103af3e5ca791e87ce59 |
|
18-Aug-2009 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[SCSI] zfcp: optimize zfcp_qdio_account
Remove expensive ktime_get()/ktime_us_delta() functions from the hot
path and use get_clock_monotonic() instead. This elimates seven
function calls and avoids a lot of unnecessary calculations.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 24680defdb55e073c5e43d14318a164b842d8ce7 |
|
18-Aug-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Replace config semaphore with mutex
The config semaphore is only used as a mutex, so replace it with a
simple mutex.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 98fc4d5c8cd9bd1a412cca922feecb54c1c22d8e |
|
18-Aug-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Simplify and update ct/gs and els timeout handling
The recommendation for a timeout of 2 * R_A_TOV is the same for ct/gs
and els requests, so set it in the common function used for
initializing both request types. Besides, the timer inside zfcp should
only run longer than the timeout set for the channel, so 10 seconds
more should be enough (instead of 60 seconds).
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 347c6a965dc110c91a77f65181fc011ee257a4a6 |
|
18-Aug-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Use kthread API for zfcp erp thread
Switch the creation of the zfcp erp thread from the deprecated
kernel_thread API to the kthread API. This allows also the removal of
some flags in zfcp since the kthread API handles thread creation and
shutdown internally. To allow the usage of the kthread_stop function,
replace the erp ready semaphore with a waitqueue for waiting until erp
actions arrive on the ready queue.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 799b76d09aeee558d18c1f5b93e63f58f1d1fc11 |
|
18-Aug-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Decouple gid_pn requests from erp
Don't let the erp wait for gid_pn requests to complete. Instead, queue
the gid_pn work, exit erp and let the finished gid_pn work trigger a
new port reopen.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 564e1c86c810f9ccfe4300afa402815e3db4886d |
|
18-Aug-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Move qdio related data out of zfcp_adapter
The zfcp_adapter structure was growing over time to a size of almost
one memory page. To reduce the size of the data structure and to
seperate different layers, put all qdio related data in the new
zfcp_qdio data structure.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 42428f747a8a0db9c6de03e105932316defad65d |
|
18-Aug-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Separate qdio attributes from zfcp_fsf_req
Split all qdio related attributes out of zfcp_fsf_req and put it in
new structure.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 4544683a4b1d4e65ccca8c736bac56a195a5206b |
|
18-Aug-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Move workqueue to adapter struct
Remove the global driver work queue and replace it with a workqueue
local to the adapter. The usage of this workqueue makes this the
correct place for the structure. In addition multiple adapters won't
block each other due to the serialization of the queued work.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| a4623c467ff76f9258555d44d68371e10c5406c2 |
|
18-Aug-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Improve request allocation through mempools
Remove the special case for NO_QTCB requests and optimize the
mempool and cache processing for fsfreqs. Especially use seperate
mempools for the zfcp_fsf_req and zfcp_qtcb structs.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 058b8647892ed49ba6a0d2c0966a72e20e2e69ff |
|
18-Aug-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Replace fsf_req wait_queue with completion
The combination wait_queue/wakeup in conjunction with the flag
ZFCP_STATUS_FSFREQ_COMPLETED to signal the completion of an fsfreq
was not race-safe and can be better solved by a completion.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 14e242ea55a8b807dc1fb7654941caf68a20cd81 |
|
18-Aug-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Only issue one test link command per port
When the FCP channel returns a series of commands with the error
status "test link", zfcp will send a series of ELS ADISC commands.
This is technically no problem, but it is enough to only issue one
test command per remote port. So, track whether a ELS ADISC command is
already pending, and do not send a new one if there is already a
pending command.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| d46f384a89c2378cb7858747faa1935db17e22a8 |
|
18-Aug-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move debug data from zfcp_data to own data structure
The struct zfcp_adapter includes everything related to the debug
traces. This introduces dependences between the definitions in
zfcp_def.h and zfcp_dbf.h. Move all debug related data structures to a
new data structure to break those dependencies and manage the debug
data in zfcp_dbf.[hc].
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
/drivers/s390/scsi/zfcp_def.h
|
| 9d544f2b9bd4a0f7ba2784cc47e3591667a7b8d4 |
|
06-Apr-2009 |
Sven Schuetz <sven@linux.vnet.ibm.com> |
[SCSI] zfcp: Add FC pass-through support
Provide the ability to do fibre channel requests from the userspace to
our zfcp driver. Patch builds upon extension to the fibre channel
tranport class by James Smart and Seokmann Ju. See here
http://marc.info/?l=linux-scsi&m=123808882309133&w=2
Signed-off-by: Sven Schuetz <sven@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 6fcf41d1d8796f41b893754324704e23971c2ea1 |
|
15-May-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Keep ccw device and model id in zfcp_ccw.c
Keep the information about the device and model id in zfcp_ccw. This
requires an additional helper function to check for the privileged
cfdc subchannel, but it allows the removal of the redundant defines
from the zfcp_def header file.
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 92d5193b467c68e8432d6878980621c787e735af |
|
17-Apr-2009 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Dont block zfcp_wq with scan
When running the scsi_scan from the zfcp workqueue and the target
device does not respond, the zfcp workqueue can block until the
scsi_scan hits a timeout. Move the work to the scsi host workqueue,
since this one is also used for the scan from the SCSI midlayer.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| a2fa0aede07c9488239dcac1eae58233181c355a |
|
02-Mar-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Block FC transport rports early on errors
Use the I/O blocking mechanism in the FC transport class to allow
faster failovers for multipathing:
- Call fc_remote_port_delete early to set the rport to BLOCKED.
- Check the rport status in queuecommand with fc_remote_portchkready
to no longer accept new I/O for this port and fail the I/O with the
appropriate scsi_cmnd result.
- Implement the terminate_rport_io handler to abort all pending I/O
requests
- Return SCSI commands with DID_TRANSPORT_DISRUPTED while erp is
running.
- When updating the remote port status, check for late changes and
update the remote ports status accordingly.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 21ddaa53f92dba820a3778978e617f20ecb6ab6f |
|
02-Mar-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove PCI flag
The usage of the PCI flag to trigger interrupts is optional. Even
without setting the flag, qdio still receives interrupts to continue
working on the queue. Remove the PCI flag from zfcp, it is not
necessary.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 8fdf30d5429605a4c30cc515c73e5eab140035de |
|
02-Mar-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Send ELS ADISC from workqueue
Issue ELS ADISC requests from workqueue. This allows the link test
request to be sent when the request queue is full due to I/O load for
other remote ports. It also simplifies request queue locking,
zfcp_fsf_send_fcp_command_task is now the only function that has
interrupts disabled from the caller. This is also a prereq for the FC
passthrough support that issues ELS requests from userspace.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 63caf367e1c92e0667a344d9b687c04e6ef054b5 |
|
02-Mar-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Improve reliability of SCSI eh handlers in zfcp
When the SCSI midlayer is running error recovery, the low-level error
recovery in zfcp could be running and preventing the SCSI midlayer to
issue error recovery requests. To avoid unnecessary error recovery
escalation, wait for the zfcp erp to finish and retry if necessary.
While reworking the SCSI eh handlers, alsa cleanup the code and
simplify the interface from zfcp_scsi to the fsf layer.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 94506fd1483b39cd5d66b8ccb4ead3c9cc9542ac |
|
02-Mar-2009 |
Martin Peschke <mpeschke@linux.vnet.ibm.com> |
[SCSI] zfcp: add measurement data for average qdio queue utilisation
Provide measurement data for the utilisation of the QDIO outbound queue.
The additional value allows to calculate an average queue utilisation
by looking at the deltas per time unit. Needed for capacity planning.
It is up to user space to handle wrap-arounds of the 64 bit value.
The new counter neatly complements the existing counter for queue full
conditions. That is why, both statistics counter have been integrated.
Signed-off-by: Martin Peschke <mpeschke@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 86f8a1b4b472e4b2b58df5826709d4797d84d46f |
|
02-Mar-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove UNIT_REGISTERED status flag
Use the device pointer in zfcp_unit for tracking if we have a
registered SCSI device. With this approach, the flag
ZFCP_STATUS_UNIT_REGISTERED is only redundant and can be removed.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| a5b11dda12ed7e3a79180b10ad6209a40a02989f |
|
02-Mar-2009 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove some port flags
PORT_PHYS_CLOSING is only set and cleared, but not actually used
for status checking.
PORT_INVALID_WWPN is set when the GID_PN request does not return
a d_id for a remote port, e.g. when a remote port has been
unplugged. For this case, the d_id is zero. In the erp we can
check the d_id and use the normal escalation procedure that gives
up after three retries and remove the special case.
PORT_NO_WWPN is unused: Each port in the remote port list has a
valid wwpn. The WKA ports are now tracked outside the port
list. Remove the PORT_NO_WWPN flag, since this is no longer set
for any port.
Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 39eb7e9aca2a582330ddb6f1167272268e6b3965 |
|
19-Dec-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Add support for unchained FSF requests
Add the support to send CT and ELS requests as unchained FSF requests. This is
required for older hardware and was somehow omitted during the cleanup of the
FSF layer. The req_count and resp_count attributes are unused, so remove them
instead of adding a special case for setting them. Also add debug data and a
warning, when the ct request hits a limit.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| b225cf9b8040849e16add4da8e84a72a3548ada8 |
|
19-Dec-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove busid macro
With the change to the dev_ message macros, the macro to get the busid
is only used in a few places. Remove it and directly get the dev_name
from the device.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| b98478d71b0fea6d35f96069612d92b76013589f |
|
19-Dec-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: remove DID_DID flag
The port flag DID_DID indicates whether we know the current id of the
port. This is always set in parallel. Since the id 0 is invalid
(because the port id 0 is invalid) we can remove the DID_DID flag:
d_id of 0 indicates an invalid d_id != 0 is a valid one.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Felix Beck <felix@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| e0d7fcb5ecad495a54f7334e410f5e16e1da7f78 |
|
19-Dec-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Simplify mask lookups for incoming RSCNs
Use an array for looking up the mask corresponding to the 2-bit
information instead of the switch/case.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Felix Beck <felix@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 3623ecba19660d1d838f8b1a4d1e80007d603617 |
|
19-Dec-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove initial device data from zfcp_data
The information from the kernel parameter is only needed during init.
Keep the three pieces (busid, wwpn and lun) local to simplify the
global zfcp_data structures. While at it, also remove the unused
loglevel variable and give the module parameter variable a better
name.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Felix Beck <felix@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| b228af0269eaf1af22dbae12a0860f8dbfd63662 |
|
19-Dec-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Remove adapter list
After the latest changes, the list of FCP devices is only used to
lookup the adapter for requests from the actcli tool. Change this to
use the lookup function in the cio layer. Now we can remove the
adapter list and have one place less to use the global config_lock.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Acked-by: Felix Beck <felix@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| bd43a42b7e9880f426ed715f18bb4f963b7352af |
|
25-Dec-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[S390] zfcp: Report microcode level through service level interface
Register zfcp with the new /proc/service_level interface to report the
FCP microcode level. When the adapter goes offline or a channel path
disappears, zfcp unregisters, since the microcode version might change
and zfcp does not know about it.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
/drivers/s390/scsi/zfcp_def.h
|
| 0997f1c5fec0b540784611036d458a84a1f7029a |
|
16-Oct-2008 |
Stefan Raspl <raspl@linux.vnet.ibm.com> |
blktrace: pass zfcp driver data
This patch writes the channel and fabric latencies in nanoseconds per
request via blktrace for later analysis. The utilization of the inbound
and outbound adapter queue is also reported.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
/drivers/s390/scsi/zfcp_def.h
|
| b9d3aed7e1e50183085fcd2af643bf42d6b4bd95 |
|
10-Oct-2008 |
Cornelia Huck <cornelia.huck@de.ibm.com> |
[S390] more bus_id -> dev_name conversions
Some further bus_id -> dev_name() conversions in s390 code.
Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
/drivers/s390/scsi/zfcp_def.h
|
| 2a0217d5c7d22d6dd28f8ae5d20b06d24dc426b8 |
|
10-Oct-2008 |
Kay Sievers <kay.sievers@vrfy.org> |
[S390] bus_id -> dev_name conversions
bus_id -> dev_name() conversions in s390 code.
[cornelia.huck@de.ibm.com: minor adaptions]
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
/drivers/s390/scsi/zfcp_def.h
|
| b7f15f3c94196accac799727502ed88a029ae7ef |
|
01-Oct-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: fix deadlock caused by shared work queue tasks
Each adapter reopen trigger automatically a scan_port task which
is waiting for the ERP to be finished before further processing.
Since the initial device setup enqueues adapter, port and LUN which
are individual ERP actions, this process would start after
everything is done. Unfortunately the port_reopen requires another
scheduled work to be finished which is queued after the automatic
scan_port -> deadlock !
This fix creates an own work queue for ERP based nameserver requests.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 0406289ed57955860a4f8d744a14f4c819260ce4 |
|
01-Oct-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Simplify zfcp data structures
Reduce the size of zfcp data structures by removing unused and
redundant members. scsi_lun is only the mangled version of the
fcp_lun. So, remove the redundant field and use the fcp_lun instead.
Since the queue lock and the pci_batch indicator are only used in the
request queue, move them from the common queue struct to the adapter
struct.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 7ba58c9cc16d296290fe645acb11db2b01276544 |
|
01-Oct-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: remove all typedefs and replace them with standards
Remove typedefs from zfcp, use already existing types instead.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 5ab944f97e09a3d52951fe903eed9a7b88d810b2 |
|
01-Oct-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: attach and release SAN nameserver port on demand
Changing the zfcp behaviour from always having the nameserver port
open to an on-demand strategy. This strategy reduces the use of
limited resources like port connections. The patch provides a common
infrastructure which could be used for all WKA ports in future.
Also reduce the number of nameserver lookups by changing the zfcp
behaviour of always querying the nameserver for the corresponding
destination ID of the remote port. If the destination ID has changed
during the reopen process we will be informed and then trigger a
nameserver query on demand.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 44cc76f2d154aa24340354b4711a0fe7f8f08adc |
|
01-Oct-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: remove unused references, declarations and flags
- Remove unused references and declarations, including one instance
of the FC ls_adisc struct that has been defined twice.
- Also remove the flags COMMON_OPENING, COMMON_CLOSING,
ADAPTER_REGISTERED and XPORT_OK that are only set and cleared, but
not checked anywhere.
- Remove the zfcp specific atomic_test_mask makro. Simply use
atomic_read directly instead.
- Remove the zfcp internal sg helper functions and switch the places
where it is still used to call sg_virt directly.
- With the update of the QDIO code, the QDIO data structures no
longer use the volatile type qualifier. Now we can also remove the
volatile qualifiers from the zfcp code.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 2450d3e7b8604d0abb042817f2502cb7ee0b782f |
|
01-Oct-2008 |
Stefan Raspl <raspl@linux.vnet.ibm.com> |
[SCSI] zfcp: add queue_full sysfs attribute
Adds a new sysfs attribute queue_full for adapters that records the number
of incidents where a requests could not be submitted due to insufficient
free space on the request queue.
Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 287ac01acf22ab6aaaf9f5a4919ce2449c8b391c |
|
02-Jul-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Cleanup code in zfcp_erp.c
Cleanup the code in zfcp_erp.c, move erp internal definititions to
this file and move FSF timeout handling to the FSF layer.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| c41f8cbddd4e0e72951e0575165dea8ea26f1c4b |
|
02-Jul-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: zfcp_fsf cleanup.
Code cleanup for the zfcp_fsf.c file.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 60221920706a01bef89af2577f9a90a8eeb4e662 |
|
02-Jul-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: consolidate sysfs things into one file.
zfcp was using three files to deal with sysfs representation
for adapters, ports and units. The consolidation into one file
prevents code-duplication and eases maintainability.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 317e6b6519b5a34263a33f150ed57ad468b26a64 |
|
02-Jul-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Cleanup of code in zfcp_aux.c
Overall cleanup of zfcp_aux.c to simplify code and follow kernel
coding style.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| f76af7d7e36373179be7a9e09f6b0aae330549b7 |
|
02-Jul-2008 |
Martin Petermann <martin@linux.vnet.ibm.com> |
[SCSI] zfcp: Cleanup of code in zfcp_scsi.c
Cleanup code in zfcp_scsi.c, fix coding style issues and simplify the
code.
Signed-off-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 5d4e226246331087799a01c267ec72e5931ff190 |
|
02-Jul-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Small QDIO cleanups
QBUFF_PER_PAGE is only used inside the qdio module, so move it to
zfcp_qdio.c
zfcp_qdio_zero_sbals is now only used in the qdio module, so make it
static.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 7afe29f7dd6dccbe454d7fd6cd6a5a7f7bcbc530 |
|
02-Jul-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Adapter reopen for large number of unsolicited status
When zfcp receives 16 unsolicited status messages, this could trigger
an adapter reopen. In this case, first try to send a new status read,
and only if this fails, go through the recovery.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| cc8c282963bd258a5bf49d3aa52675a4ae6d31f6 |
|
10-Jun-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Automatically attach remote ports
Automatically attach the remote ports in zfcp when the adapter is set
online. This is done by querying all available ports from the FC
namesever. The scan for remote ports is also triggered by RSCNs and
can be triggered manually with the sysfs attribute 'port_rescan'.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 553448f6c4838a1e4bed2bc9301c748278d7d9ce |
|
10-Jun-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Message cleanup
Cleanup the messages used in the zfcp driver: Remove unnecessary debug
and trace message and convert the remaining messages to standard
kernel macros. Remove the zfcp message macros and while updating the
whole flie also update the copyright headers.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 00bab91066a49468bfa4f6d5c8ad5e9ec53b7ea3 |
|
10-Jun-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: Cleanup qdio code
Cleanup the interface code from zfcp to qdio. Also move code that
belongs to the qdio interface from the erp to the qdio file.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 45633fdc9615f9fd2a0ae18e301562298b15abf3 |
|
10-Jun-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move CFDC code to new file.
zfcp implements a device file to allow Linux guests changing the
Access Control Tables stored in the adapter. The code for the device
file has nothing to do with the other parts of the driver, so move it
to a new file and cleanup the code while doing so.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 24073b475d6d2bad8880434a16343ee1da816ea5 |
|
10-Jun-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move FC code to new file
Move all Fibre Channel related code to new file and cleanup the code
while doing so.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| c3baa9a26c5ac7e8d801093d55d33620d8bc2fe2 |
|
19-May-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Add information about interrupt to trace.
Store the index of the buffer in the inbound queue used to report
request completion in trace record for request coompletion.
This piece of information allows to better compare qdio and zfcp traces.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| e891bffe927f39718cf84c35b380d6edb189848b |
|
19-May-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Rename sbal_curr to sbal_last.
sbal_last is more appropriate, because it matches sbal_first.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| d01d51beee4dd9f7ff9caf7491aa1727a318e665 |
|
19-May-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Rename sbal_last.
sbal_last is confusing, as it is not the last one actually used,
but just a limit. sbal_limit is a better name.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| d26ab06ede83287f99067fee3034c5455a75faf9 |
|
19-May-2008 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: receiving an unsolicted status can lead to I/O stall
Processing of an unsolicted status request can lead to a locking race
of the request_queue's queue_lock during the recreation of the
used up status read request while still in interrupt context
of the response handler.
Detaching the 'refill' of the long running status read requests from
the handler to a scheduled work is solving this issue.
In addition, each refill-run is trying to re-establish the full amount
of status read requests, which might have failed in earlier runs.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| c9615858a81d2424c78b10a2f689ba24b156937c |
|
06-May-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Track fabric and channel latencies provided by FCP adapter
Add the infrastructure to retrieve the fabric and channel latencies
from FSF commands for each SCSI command that has been processed. For
each unit, the sum, min, max and number of requests is tracked.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 2cca775baecbfede2fec20c99add709232311fe7 |
|
18-Apr-2008 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (137 commits)
[SCSI] iscsi: bidi support for iscsi_tcp
[SCSI] iscsi: bidi support at the generic libiscsi level
[SCSI] iscsi: extended cdb support
[SCSI] zfcp: Fix error handling for blocked unit for send FCP command
[SCSI] zfcp: Remove zfcp_erp_wait from slave destory handler to fix deadlock
[SCSI] zfcp: fix 31 bit compile warnings
[SCSI] bsg: no need to set BSG_F_BLOCK bit in bsg_complete_all_commands
[SCSI] bsg: remove minor in struct bsg_device
[SCSI] bsg: use better helper list functions
[SCSI] bsg: replace kobject_get with blk_get_queue
[SCSI] bsg: takes a ref to struct device in fops->open
[SCSI] qla1280: remove version check
[SCSI] libsas: fix endianness bug in sas_ata
[SCSI] zfcp: fix compiler warning caused by poking inside new semaphore (linux-next)
[SCSI] aacraid: Do not describe check_reset parameter with its value
[SCSI] aacraid: Fix down_interruptible() to check the return value
[SCSI] sun3_scsi_vme: add MODULE_LICENSE
[SCSI] st: rename flush_write_buffer()
[SCSI] tgt: use KMEM_CACHE macro
[SCSI] initio: fix big endian problems for auto request sense
...
|
| 2a2cf6b18626e66b7898013dfa4df8fe2feca568 |
|
17-Apr-2008 |
Harvey Harrison <harvey.harrison@gmail.com> |
[S390] replace remaining __FUNCTION__ occurrences
__FUNCTION__ is gcc-specific, use __func__
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
/drivers/s390/scsi/zfcp_def.h
|
| 2b604c9b909ce1c98e51208eee2f70ee3e604079 |
|
31-Mar-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Move DBF definitions to private header file
Unclutter the global zfcp_def.h header. Move everything required to
call into the debug feature to a new header file.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 507e49693a074e878f20718fb97a5da01ccd9cbd |
|
27-Mar-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Remove obsolete erp_dbf trace
This patch removes the now obsolete erp_dbf trace.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 6f4f365e9c5d721c4d03ee8009dd6fab47feb045 |
|
27-Mar-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Add trace records for recovery actions.
This patch writes trace records for various phases of a recovery action:
action being created, action being processed, action continueing
asynchronously, action gone, action timed out, action dismissed etc.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 9467a9b3efdd9041202f71cc270bda827a7ec777 |
|
27-Mar-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Trace all triggers of error recovery activity
This patch allows any recovery event to be traced back to an exact
cause, e.g. a particular request identified by an id (address).
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 698ec01635819c5ae60090bb4efcbeffc41642fb |
|
27-Mar-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Add traces for state changes.
This patch writes a trace record which provides information about state
changes for adapters, ports and units, e.g. target failure, targets becoming
online, targets being temporarily blocked due to pending recovery, targets
which have been recovered successfully etc.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 348447e85749120ad600a5c8e23b6bb7058b931d |
|
27-Mar-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Add trace records for recovery thread and its queues
This patch writes trace records which provide information about the
operation of the zfcp error recovery thread and the queues it works
on.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| d79a83dbffe2e49e73f2903c350937faf2e0c2f1 |
|
27-Mar-2008 |
Martin Peschke <mp3@de.ibm.com> |
[SCSI] zfcp: Register new recovery trace.
This patch registers the new recovery trace with the s390 debug
feature.
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 74b2e047ecda7a82c3327a0d0bb45ee2ccf301ca |
|
03-Mar-2008 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: convert zfcp to use target reset and device reset handler
[based on proposal from Mike Christie <michaelc@cs.wisc.edu>, this
patch adds some simplifications to the handler functions]
With the new target reset handler callback in the SCSI midlayer, the
device reset handler in zfcp can be split in two parts. Now, zfcp does
not have to track anymore whether the device supports LUN resets, so
remove this flag and let the SCSI midlayer decide what to do.
The device reset handler simply issues a LUN reset and the target
reset handler a target reset.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| d1ad09db2fd551d49d65ef040591cb9298e70fb6 |
|
20-Dec-2007 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[SCSI] zfcp: fix use after free bug.
zfcp_erp_strategy_check_fsfreq() checks if it is safe to access the
fsf_req associated with the erp_action that gets passed. To test if
it is safe it accesses the fsf_req in order to get its index into
the hash list. This is broken since the fsf_req might be freed already
and the read index has no meaning. It could lead to memory corruption.
Fix this by introducing a new zfcp_reqlist_find_safe() method which
just checks if addresses are equal. This is slower, but only gets
called in case of error recovery.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 1de1b43b5f0bb536126e31f07ec833e01969ed1c |
|
05-Nov-2007 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Fix deadlock when adding invalid LUN
When adding an invalid LUN, there is a deadlock between the add
via scsi_scan_target and the slave_destroy handler: The handler
waits for the scan to complete, but for an invalid unit,
scsi_scan_target directly calls the slave_destroy handler.
Fix the deadlock by removing the wait in the slave_destroy
handler, it was not necessary anyway.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 18edcdbdb2911baa5aaeb0ed781e3424cbf98d64 |
|
05-Nov-2007 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Specify waiting times in ERP in seconds
It is not necessary to use jiffies or milliseconds to specify
waiting times that last a couple of seconds.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
/drivers/s390/scsi/zfcp_def.h
|
| 9335432959111c982c74177521305e6a3fb600a3 |
|
26-Oct-2007 |
Jens Axboe <jens.axboe@oracle.com> |
SG: s390-scsi: missing size parameter in zfcp_address_to_sg()
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
/drivers/s390/scsi/zfcp_def.h
|
| 642f149031d70415d9318b919d50b71e4724adbd |
|
24-Oct-2007 |
Jens Axboe <jens.axboe@oracle.com> |
SG: Change sg_set_page() to take length and offset argument
Most drivers need to set length and offset as well, so may as well fold
those three lines into one.
Add sg_assign_page() for those two locations that only needed to set
the page, where the offset/length is set outside of the function context.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
/drivers/s390/scsi/zfcp_def.h
|
| 73fc4f0d2ce4a92c36b00649c58e0a068a6cdfa4 |
|
23-Oct-2007 |
Jens Axboe <jens.axboe@oracle.com> |
s390 zfcp: sg fixups
Based on initial patch from Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
/drivers/s390/scsi/zfcp_def.h
|
| f1346372f9c73154727bf2cadb7f78126597efd2 |
|
30-Jul-2007 |
FUJITA Tomonori <tomof@acm.org> |
zfcp: sg chaining support
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
/drivers/s390/scsi/zfcp_def.h
|
| 41fa2adabc0a750a40d6fe86d5ce2f75fb3ad287 |
|
07-Sep-2007 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: whitespace cleanup
Cleanup the whitepace from the entire zfcp driver to prevent
to have those changes in future feature or function patches.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| b4e44590f0811e629faf2de4aea15e752d83ce3d |
|
18-Jul-2007 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: code cleanup
improve code for buffer enqueue. easy readability and maintainability.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| ca2d02c2f9ea476062ae181eec60b8bcd97857d6 |
|
08-May-2007 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[SCSI] zfcp: rework request ID management.
Simplify request ID management and make sure that frequently used
functions are inlined. Also fix a memory leak in zfcp_adapter_enqueue()
which only gets hit in error handling.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 5f852be9e11d62223ea063f6ceed4f9677f54051 |
|
08-May-2007 |
Christof Schmitt <christof.schmitt@de.ibm.com> |
[SCSI] zfcp: Fix deadlock between zfcp ERP and SCSI
The SCSI stack requires low level drivers to register and
unregister devices. For zfcp this leads to the situation where
zfcp calls the SCSI stack, the SCSI tries to scan the new device
and the scan SCSI command fails. This would require the zfcp erp,
but the erp thread is already blocked in the register call.
The fix is to make sure that the calls from the ERP thread to
the SCSI stack do not block the ERP thread. In detail:
1) Use a workqueue to avoid blocking of the scsi_scan_target calls.
2) When removing a unit make sure that no scsi_scan_target call is
pending.
3) Replace scsi_flush_work with scsi_target_unblock. This avoids
blocking and has the same result.
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| e18b890bb0881bbab6f4f1a6cd20d9c60d66b003 |
|
07-Dec-2006 |
Christoph Lameter <clameter@sgi.com> |
[PATCH] slab: remove kmem_cache_t
Replace all uses of kmem_cache_t with struct kmem_cache.
The patch was generated using the following script:
#!/bin/sh
#
# Replace one string by another in all the kernel sources.
#
set -e
for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do
quilt add $file
sed -e "1,\$s/$1/$2/g" $file >/tmp/$$
mv /tmp/$$ $file
quilt refresh
done
The script was run like this
sh replace kmem_cache_t "struct kmem_cache"
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
/drivers/s390/scsi/zfcp_def.h
|
| 8d1a006049ff1c084d57fbea1106ecad3455bd27 |
|
12-Oct-2006 |
Swen Schillig <swen@vnet.ibm.com> |
[SCSI] zfcp: initialize scsi_host_template.max_sectors with appropriate value
Define ZFCP_MAX_SECTORS and initialize scsi_host_template.max_sectors
with appropriate value.
Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 2abbe866c8eb0296e3f5343bcf73e5371522a738 |
|
18-Sep-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: introduce struct timer_list in struct zfcp_fsf_req
This instance will be used whenever a timer is needed for
a request by zfcp.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| dd52e0eaf891cd85bf2ca057c15ed6bfd76db4e6 |
|
18-Sep-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[SCSI] zfcp: create private slab caches to guarantee proper data alignment
Create private slab caches in order to guarantee proper alignment of
data structures that get passed to hardware.
Sidenote: with this patch slab cache debugging will finally work on s390
(at least no known problems left).
Furthermore this patch does some minor cleanups:
- store ptr for transport template in struct zfcp_data
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Compile fix ups and
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 39b083fe1c3c7b88939f6fa1b0b96e579f12e96f |
|
20-Sep-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[S390] empty function defines.
Use do { } while (0) constructs instead of empty defines to avoid
subtle compile bugs.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
/drivers/s390/scsi/zfcp_def.h
|
| 58b3ac07fed31ffc1349380b78305af6522fe1f4 |
|
02-Aug-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: bump version number
New version number fo zfcp driver.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| f6c0e7a7b3b6db15146877c0cef43b413af5b76e |
|
02-Aug-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: minor erp bug fixes
Bug fixes for zfcp's erp:
- trigger adapter reopen if do_QDIO fails
- avoid erp deadlock if registration of scsi target or remote port hang
- do not treat as error if exchange port data fails
- decrease timeout for target reset and aborts
- mark unit failed if slave_destroy is called
Additionally some code cleanup was done:
- made some functions void when retval is not of interest
- shortened initialization of zfcp's host_template
- corrected some comments
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| fea9d6c7bcd8ff1d60ff74f27ba483b3820b18a3 |
|
02-Aug-2006 |
Volker Sameske <sameske@de.ibm.com> |
[SCSI] zfcp: improve management of request IDs
Improve request handling. Use hash table to manage request IDs.
Signed-off-by: Volker Sameske <sameske@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 93ef588735973e4c35ff3707685678cdebd694a4 |
|
22-May-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: bump up version number
Bump up version number, skip "4.6.0" because this might
clash with zfcp version in certain distros.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 75bfc2837bbcc329193d51e8b7115184b78beae0 |
|
22-May-2006 |
Ralph Wuerthner <rwuerthn@de.ibm.com> |
[SCSI] zfcp: evaluate plogi payload to set maxframe_size, supported_classes of rports
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 06506d00ec1a0d7d3b1dff59185af355ce29ac0a |
|
22-May-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: (cleanup) removed superfluous macros, struct members, typedefs
Removed some macros, struct members and typedefs which were
unused or not necessary.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 4a9d2d8bf989c77b54add430932fa5ed8a80dba9 |
|
22-May-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: (cleanup) shortened copyright and author information
Copyright update, shortened file headers, shortened author information.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| ad58f7dbeb6f5ea82679962f18985f16b660a2d9 |
|
10-Mar-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: fix device registration issues
The patch fixes following issues:
(1) Replace scsi_add_device with scsi_scan_target.
(Thus the rport instead of the scsi_host becomes parent of a
scsi_target again.)
(2) Avoid scsi_device allocation during registration of an remote port.
(Would be done during fc_scsi_scan_rport.)
(3) Fix queuecommand behaviour when an zfcp unit is blocked.
(Call scsi_done with DID_NO_CONNECT instead of returning
SCSI_MLQUEUE_DEVICE_BUSY otherwise we might end up waiting
for completion in blk_execute_rq for ever.)
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| ed829ad607a9c334cea490d3a8c0f874153fb42d |
|
11-Feb-2006 |
Maxim Shchetynin <maxim@de.ibm.com> |
[SCSI] zfcp: fix logging during device reset
Avoid access to old fsf_requests if device reset is logged.
Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 2f8f3ed5fc566700cf45d422f4cf1624bd123d93 |
|
11-Feb-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: fix adapter erp when link is unplugged
Remove endless polling for replug of the local link. Just wait for
link up notification.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| c8024eb549f0c701e6d1c46c32e997f06f05d76d |
|
11-Feb-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: get rid of physical_wwpn and physical_s_id
Remove all remainders of obsolete zfcp adapter attributes physical_wwpn and
physical_s_id.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| e018ba1fceee5bd306e31f6e3a60934d5f143ac5 |
|
01-Feb-2006 |
Heiko Carstens <heiko.carstens@de.ibm.com> |
[PATCH] s390: Remove CVS generated information
- Remove all CVS generated information like e.g. revision IDs from
drivers/s390 and include/asm-s390 (none present in arch/s390).
- Add newline at end of arch/s390/lib/Makefile to avoid diff message.
Acked-by: Andreas Herrmann <aherrman@de.ibm.com>
Acked-by: Frank Pavlic <pavlic@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
/drivers/s390/scsi/zfcp_def.h
|
| ad757cdfd2a40c9d5310d00f24427525788341cd |
|
13-Jan-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: transport class adaptations II
Replaced zfcp adapter attributes with fc_host attributes:
fc_topology by port_type, physical_wwpn by permanent_port_name.
Make use of fc_host attribute supported_speeds.
Removed zfcp adapter attribute physical_s_id.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| f6cd94b126aa78ebaa21075df3b9577fbf995968 |
|
05-Jan-2006 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: transport class adaptations
Added host stats, removed superfluous get_starget_ functions,
removed some attributes from zfcp specific sysfs tree (e.g.
scsi_host_no, scsi_lun, wwnn and d_id).
Host stats are given for the physical adapter port not for the
virtual adapter. Reset stats is implemented in the device driver.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 13e1e1f08c1c098c7574c1fa72bd8c67792dc89b |
|
19-Sep-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: add additional fc_host attributes
this patch adds some fc host attributes and removes its equivalents
from the zfcp_adapter structure and zfcp specific sysfs subtree.
Furthermore it removes superfluous calls to fc_remort_port_delete when
an adapter is set offline because rports will be removed by
fc_remove_host anyway.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| aef4a983090fa590481a86d9690dc3fa6bb121fa |
|
13-Sep-2005 |
Maxim Shchetynin <maxim@de.ibm.com> |
[SCSI] zfcp: provide support for NPIV
N_Port ID Virtualization (NPIV) allows a single FCP port to appear as
multiple, distinct ports providing separate port identification. NPIV
is supported by FC HBAs on System z9. zfcp was adapted to support this
new feature.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 8a36e4532ea10471f0a8605207d071361d7be2c3 |
|
13-Sep-2005 |
Maxim Shchetynin <maxim@de.ibm.com> |
[SCSI] zfcp: enhancement of zfcp debug features
Debug features (DBFs) els_dbf, cmd_dbf and abt_dbf were removed and
san_dbf, hba_dbf and scsi_dbf were introduced. The erp_dbf did not
change.
The new traces improve debugging of problems with zfcp, scsi-stack,
multipath and hardware in the SAN. san_dbf traces things like ELS and
CT commands, hba_dbf saves HBA specific information of requests, and
scsi_dbf saves FCP and SCSI specific information of requests. Common
to all new DBFs is that they provide a so called structured view. This
significantly improves readability of the traces.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 059c97d0434834d291eff94669ca2dd3eaac9d28 |
|
13-Sep-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: remove union zfcp_req_data, use unit refcount for FCP commands
o union zfcp_req_data removed
o increment unit refcount when processing FCP commands
(This fixes a theoretical race: When all scsi commands of a unit
are aborted and the scsi_device is removed then the unit could be
removed before all fsf_requests of that unit are completely processed.)
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
|
| 3859f6a248cbdfbe7b41663f3a2b51f48e30b281 |
|
27-Aug-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[PATCH] zfcp: add rports to enable scsi_add_device to work again
This patch fixes a severe problem with 2.6.13-rc7.
Due to recent SCSI changes it is not possible to add any LUNs to the zfcp
device driver anymore. With registration of remote ports this is fixed.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Acked-by: James Bottomley <jejb@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
/drivers/s390/scsi/zfcp_def.h
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| d736a27b7efbc835c7b83db5c1bbd41edbadf32e |
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13-Jun-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: fix handling of port boxed and lun boxed fsf states
From: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
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| 1db2c9c0931a53fe013db55fd2ff58859db31e8d |
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13-Jun-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: fix bug during adapter shutdown
Fixes a race between zfcp_fsf_req_dismiss_all and
zfcp_qdio_reqid_check. During adapter shutdown it occurred that a
request was cleaned up twice. First during its normal
completion. Second when dismiss_all was called. The fix is to
serialize access to fsf request list between zfcp_fsf_req_dismiss_all
and zfcp_qdio_reqid_check and delete a fsf request from the list if
its completion is triggered. (Additionally a rwlock was replaced by a
spinlock and fsf_req_cleanup was eliminated.)
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
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| 64b29a130901d5b8578e9f602cf2dae56aaff224 |
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13-Jun-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: fix: problem in send_els_handler when D_ID assignment changes
From: Maxim Shchetynin <maxim@de.ibm.com>
Fixes a bug in zfcp_send_els_handler. If D_ID assignments for ports
are changing between initiation of one ELS request and its completion
the wrong port might be accessed in the completion for that ELS
request. Thus a pointer to the port has to be passed for ELS requests
to identify the port structure if required.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
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| 22753fa514aad02342e647ad13048caa282d9238 |
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13-Jun-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: fix: allow more time for adapter initialization
From: Maxim Shchetynin <maxim@de.ibm.com>
Extend the time for adapter initialization: In case of protocol
status HOST_CONNECTION_INITIALIZING for the exchange config data
command do a first retry in 1 second, then double the sleep time for
each following retry until recovery exceeds 2 minutes. The old
behaviour of allowing 6 retries with .5 seconds delay between retries
was insufficient and qdio queues were shut down too erarly.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
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| 6bc9dace767f1fffdf975b3398b3c4e37cd5ae18 |
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10-Jun-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: remove flags_dump feature
Removes the rarely used "flags_dump" mechanism of zfcp.
Equivalent debug information will be provided with a reworking of
zfcp's s390dbf-facilities which is in preparation.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
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| bd6ae2f6d61da0f90c6b66e9a4ab6c53ef8c159a |
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21-Apr-2005 |
Andreas Herrmann <aherrman@de.ibm.com> |
[SCSI] zfcp: fix compile error
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
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| 6f71d9bc025b02a8cbc2be83b0226a7043a507a5 |
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11-Apr-2005 |
<jejb@titanic.il.steeleye.com> |
zfcp: add point-2-point support
From: Andreas Herrmann <aherrman@de.ibm.com>
This patch mainly introduces support for point-2-point
topology.
From: Heiko Carstens <heiko.carstens@de.ibm.com>
From: Maxim Shchetynin <maxim@de.ibm.com>
From: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
/drivers/s390/scsi/zfcp_def.h
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| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
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17-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
/drivers/s390/scsi/zfcp_def.h
|