- Add debugfs support to obtain firmware trace, driver trace
and read/write to registers.
- debugfs hierarchy:
/sys/kernel/debug/bfa/host#
where the host number corresponds to the one under /sys/class/scsi_host/host#
- Following are the new debugfs entries added:
drvtrc: collect current driver trace
fwtrc: collect current firmware trace.
fwsave: collect last saved fw trace as a result of firmware crash.
regwr: write one word to chip register
regrd: read one or more words from chip register.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch fixes 3 bugs in vport create/delete.
1) Replace scsi_add_host() with scsi_add_host_with_dma()
2) Fix rmmod hang when there are vports configured. This is due to a race
condition between the workqueue destroy in pci remove context and the vport
delete works being handled. The fix is to use a counter to track the
vport delete work, so that workqueue destroy will not be called until all
configured vports are deleted from workqueue.
3) Fix rmmmod crash when there are PBC vport configured. PBC is not allowed
to be deleted dynamically. However, if someone try to delete it, it leaves the
vport is wrong state. The fix is to restore the vport back to original state
when the attempt to delete pbc vport delete is failed.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch fixes the issue of passing wrong argument to callback function.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch adds ioc state checking while enabling a port.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Update bfa driver API and data structure to support BOFM (IBM BladeCenter
Open Fabric Manager).
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
While processing the ioim in callback functions, the ioim is still in io_q.
During this time, if the itnim goes offline, the ioim is requeued from
itnim->io_q into itnim->delay_comp_q although the request is already completed.
This results in requeing the ioim into the callback queue if the ioim is not
freed by the time the ioim is requeued. This results in double completion of
the ioim. To fix this, whenever a response is received from firmware for an
ioim, deque it from io_q and enque to fcpim->comp_q. This will eliminate any
possibility of itnim picking any ioim for which the response is already
received.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
When the FCoE Linkup event is sent to the host, the link_state
(struct bfa_pport_link_s) structure is copied to the RME buf to be sent to
the host. But the size of this structure(164 bytes) is larger than the
reserved RME buffer size(128 byes). The following changes reduce the size
of the structure to be less than RME buffer size(128 bytes):
- Remove the trunk and loop info from link_state structure, because both trunk
and loop are not supported.
- Combine qos_vc_attr and fcf into an union.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Add new bfa functionality to support dynamic queue selection (IO redirection).
IO redirection can only be enabled when QoS is disabled.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
BFA UF module did not hold lock when seding uf post buffer message to firmware
causing CPE-Q corruption. Fix is to check present of FCS and if FCS present
hold lock while posting UF buffers.
Handle PRLO with sending acc to it and relogin with rport. Discard fcxp
before any state change.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Clear PSS memory reset that is set as part of power-on-reset (pci reset).
Complete PMM memory reset before BISTR start. Clear EDRAM BISTR start bit
after fixed delay. BISTR DONE bit status is not getting set. Use a fixed
1ms delay for BISTR now. Expose PMM IT memory definitions to host.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Update related data structures to support firmeare configuration.
Add AEN events related to firmware configuation.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Add PBC port disable handling in BFA and return the appropriate status from
BFA APIs. In bfa_fcs_lport.c, handle OFFLINE event to avoid BFA_ASSERT.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Add a max retry limit for PRLI retries. Max retry limit (5) is same as used
in rport PLOGI. Once the retries are exhausted, invoke rport offline so that
existing logic of rport re-discovery can kick-in. Also fixed a bug in rport.c
where one less retry was happening.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
When a rport goes offline, its speed setting was not reset. Subsequently, if
the rport was not deleted due to it coming back online within rport del
timeout, previously discovered speed would continue to show up. The fix is to
reset the speed when processing rport offline transition.
In rport attributes, rport's with unknown speed were indicated as TRL
enforced. The right thing do to would be to use TRL default speed to
determine if TRL is enforced, when TRL is enabled.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Do not update the coalesce flag of the intr_attr struct in driver config area
on config response. This is to prevent the coalesce flag being reported as on
after an ioc disable/enable even if it was set to off before disable.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Use standards defined 2 * RA_TOV as a timeout for ELS Request retries.
And standards defined 3 * RA_TOV as a timeout for FC-CT Request retries.
Also, added a check to send RPSC2 to a Brocade Fabric only.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
- Added time stamp for fcport stats reset
- Added new fileds to the statistics data structures.
- Typo removal and minor cleanup.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch fixes the APIs to obtain ioc attributes
- fix API to obtain wwpn, wwnn, and mac.
- add API to get mfg wwpn, wwnn, and mac.
- fix API to obtain wwn of boot target.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Vport state machine does not cleanup associated lport in some states: while
waiting for fdisc response or fdisc failure state. The fixe is to cleanup lport
on vport delete in all states. In fdisc state, discard fdisc response and
delete lport and wait for lport deletecompletion. in error state, delete lport
and wait for delete completion.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch enables creating PBC vport.
During fcs init, fcs will read PBC vport using bfa iocfc API and invoke fcb
callback to add the pbc vport entries into a list. The pbc vport list will be
traversed in the subsequent pci probe process and vport will be created using
fc transport provided vport create function.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The patch includes the driver side changes to enable basic PBC (PreBoot
Configuration) feature.
- Data structure changes and new definitions for PBC.
- APIs to access PBC info.
- Remove unused code.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch enables support of new mezzanine cards for HP and IBM blade server.
- Add new pciids for HP and IBM mezzanine card.
- Add a new firmware image for HP mezzanine card, which is running in
FC only mode. Rename firmware image to reflect the difference. Change the
firmware download code accordingly for the above changes.
Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
fixes surrounding PCIe enhanced error handling:
(1) We need to reject all request generated internaly inside the driver as well
as request arriving from the scsi mid layer when PCIe EEH is active. The fix is
to add a per adapter flag called pci_error_recovery which is checked thru out
the driver when request are generated.
(2) We don't need to call the pci_driver->remove directly from the PCIe
callbacks becuase its already called from the PCIe EEH code. In its place we are
shutting down the watchdog timer, and flushing back all pending IO.
(3) We need to save and restore the pci state across PCIe EEH handling.
Signed-off-by: Eric Moore <eric.moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This sysfs attribute is proven to be useful during pivot_root.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Acked-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
In compliance to RFC793, a TCP graceful termination will be used
instead of an abortive termination for the case where the remote
has initiated the close of the connection.
Additionally, a TCP abortive termination will be used to close the
connection when a logout response is not received in time after a
logout request has been initiated.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Acked-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Added variables to separate the fine tuned timeout values for
connection destroy and context destroy for both 1g and 10g devices.
v2: Extended the 5771X disconnect timeout from 10s to 20s as the firmware
has a retransmission timeout of 16s. This fixes one of the iscsi_endpoint
leak issues when the target is slow or non-responsive to our TCP FIN.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Acked-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
For cases where the iSCSI disconnection procedure times out due to
the iSCSI daemon being slow or unresponsive, the bnx2i_stop routine
will now perform hardware cleanup via bnx2i_hw_ep_disconnect on all
active endpoints so that subsequent operations will perform properly.
Also moved the mutex locks inside ep_connect and ep_disconnect so
that proper exclusivity can resolve simultaneous calls to the
ep_disconnect routine.
v2: Removed the unnecessary read lock in the bnx2i_stop
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Acked-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This introduces a new active linklist which would link up all active
bnx2i_endpoints. This will be used by subsequent patches that
follows.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Acked-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch introduces a new bnx2i_hw_ep_disconnect routine which
contains all chip related disconnect and clean up procedure of
iSCSI offload connections. This separation is intended as a
preparation for the subsequent bnx2i_stop patch.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Anil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
map_region and unmap_region could access to invalid memory area since
they don't check the size boundary.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The value used to change the endian representation on the new adapters has
changed. This patch updates that value.
Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch allows the driver to recognize a new Obsidian-E based adapter that
uses a new subsystem ID.
This patch also fixes a few tab/space problems.
Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Stanse found that in mvs_abort_task, mvi_dev is dereferenced earlier
than tested for being NULL. Move the assignment below the test.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Printing Doorbell register in a case of hard reset and timeout
should be useful for figuring out the state of the system.
Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The below patch fixes a warning message generated by gcc 4.6.0
CC drivers/scsi/hosts.o
drivers/scsi/hosts.c: In function 'scsi_host_alloc':
drivers/scsi/hosts.c:328:6: warning: variable 'rval' set but not used
Fix this by removing the rval but placing a printk warning where it
would have been set.
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
If the user accidentally changes LUN mappings or it occurs
due to a bug, then it can cause data corruption that can take
months and months to track down. This patch adds a log
message when getting REPORT_LUNS_DATA_CHANGED and it adds
a generic message for other Unit Attentions with asc == 0x3f.
We are working on adding support for handling of these errors,
but I think until then we should at least log a message so
tracking down problems as a result of one of these changes
is a little easier.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This patch fixes mptsas disk hot-removal processing. The
hot-removal processing doesn't complete because of this condition.
drivers/message/fusion/mptsas.c:
mptsas_taskmgmt_complete()
if ((mptsas_find_vtarget(ioc, channel, id)) && !ioc->fw_events_off)
mptsas_queue_device_delete(...);
mptsas_queue_device_delete(), which must be called for
hot-removal, never gets called because mptsas_find_vtarget()
always returns 0 here. At that time, the vtarget has already
been freed in mptsas_target_destroy(), and also the scsi_device
has been marked as SDEV_DEL.
As a result of the issue, port deletion functions won't get
called and the device ends up being in an incomplete state.
(Some data structures and sysfs entries, which should be
removed in hot-removal, remain.) One side effect of this is
that a hot-addition of the device (bringing the device back
on) fails.
This patch just removes mptsas_find_vtarget() from the if-state
condition.
Signed-off-by: Kei Tokunaga <tokunaga.keiich@jp.fujitsu.com>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
The 64 bit chip used in new adapters does not properly support the BIST register
in PCI config space. This patch implements an alternative MMIO write reset
method.
Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
1. To support Type C RAID controller, ACB_ADAPTER_TYPE_C, i.e. PCI device
ID: 0x1880.
Signed-off-by: Nick Cheng< nick.cheng@areca.com.tw >
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
we also need to clean up and free the cdev.
Reported-by: Jani Nikula <ext-jani.1.nikula@nokia.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
If we encounter an error when sending a management datagram (i.e. non
SCSI command, such as virtual adapter initialization command), we
end up incrementing the request_limit, even though we don't decrement
it for these commands. Fix this up by doing this increment in
the error path for SRP commands only.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Fixes a deadlock that can occur if we hit a command timeout
during the virtual adapter initialization. The event done
functions are written with the assumption that no locks are held,
however, when purging requests this is not true. Fix up the
purge function to drop the lock so that the done function
is not called with the lock held, which can cause a deadlock.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This fixes a softlockup seen on resume. During resume, the CRQ
must be reenabled. However, the H_ENABLE_CRQ hcall used to do
this may return H_BUSY or H_LONG_BUSY. When this happens, the
caller is expected to retry later. This patch changes a simple
loop, which was causing the softlockup, to a loop at task level
which sleeps between retries rather than simply spinning.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Adds support for fc_block_scsi_eh to block the EH handlers if
the target device is in the blocked state to ensure we don't
take devices offline.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This fixes a softlockup seen on resume. During resume, the CRQ
must be reenabled. However, the H_ENABLE_CRQ hcall used to do
this may return H_BUSY or H_LONG_BUSY. When this happens, the
caller is expected to retry later. Normally the H_ENABLE_CRQ
succeeds relatively soon. However, we have seen cases where
this can take long enough to see softlockup warnings.
This patch changes a simple loop, which was causing the
softlockup, to a loop at task level which sleeps between
retries rather than simply spinning.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Jing Huang