The current logging methods typically end up requesting a reproduction with
a different logging level set to figure out what happened. This was mainly
by design to not clutter the kernel log messages with things that were
typically not interesting and the messages themselves could cause other
issues.
When looking to make a better system, it was seen that in many cases when
more data was wanted was when another message, usually at KERN_ERR level,
was logged. And in most cases, what the additional logging that was then
enabled was typically. Most of these areas fell into the discovery machine.
Based on this summary, the following design has been put in place: The
driver will maintain an internal log (256 elements of 256 bytes). The
"additional logging" messages that are usually enabled in a reproduction
will be changed to now log all the time to the internal log. A new logging
level is defined - LOG_TRACE_EVENT. When this level is set (it is not by
default) and a message marked as KERN_ERR is logged, all the messages in
the internal log will be dumped to the kernel log before the KERN_ERR
message is logged.
There is a timestamp on each message added to the internal log. However,
this timestamp is not converted to wall time when logged. The value of the
timestamp is solely to give a crude time reference for the messages.
Link: https://lore.kernel.org/r/20200630215001.70793-14-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This series consists of the usual driver updates (qla2xxx, ufs, zfcp,
target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
of other minor updates. There are no major core changes in this
series apart from a refactoring in scsi_lib.c.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
:This series consists of the usual driver updates (qla2xxx, ufs, zfcp,
target, scsi_debug, lpfc, qedi, qedf, hisi_sas, mpt3sas) plus a host
of other minor updates.
There are no major core changes in this series apart from a
refactoring in scsi_lib.c"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (207 commits)
scsi: ufs: ti-j721e-ufs: Fix unwinding of pm_runtime changes
scsi: cxgb3i: Fix some leaks in init_act_open()
scsi: ibmvscsi: Make some functions static
scsi: iscsi: Fix deadlock on recovery path during GFP_IO reclaim
scsi: ufs: Fix WriteBooster flush during runtime suspend
scsi: ufs: Fix index of attributes query for WriteBooster feature
scsi: ufs: Allow WriteBooster on UFS 2.2 devices
scsi: ufs: Remove unnecessary memset for dev_info
scsi: ufs-qcom: Fix scheduling while atomic issue
scsi: mpt3sas: Fix reply queue count in non RDPQ mode
scsi: lpfc: Fix lpfc_nodelist leak when processing unsolicited event
scsi: target: tcmu: Fix a use after free in tcmu_check_expired_queue_cmd()
scsi: vhost: Notify TCM about the maximum sg entries supported per command
scsi: qla2xxx: Remove return value from qla_nvme_ls()
scsi: qla2xxx: Remove an unused function
scsi: iscsi: Register sysfs for iscsi workqueue
scsi: scsi_debug: Parser tables and code interaction
scsi: core: Refactor scsi_mq_setup_tags function
scsi: core: Fix incorrect usage of shost_for_each_device
scsi: qla2xxx: Fix endianness annotations in source files
...
A lot of files in lpfc include nvme headers, building up relationships that
require a file to change for its headers when there is no other change
necessary. It would be better to localize the nvme headers.
There is also no need for separate nvme (initiator) and nvmet (tgt)
header files.
Refactor the inclusion of nvme headers so that all nvme items are
included by lpfc_nvme.h
Merge lpfc_nvmet.h into lpfc_nvme.h so that there is a single header used
by both the nvme and nvmet sides. This prepares for structure sharing
between the two roles. Prep to add shared function prototypes for upcoming
shared routines.
Signed-off-by: Paul Ely <paul.ely@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Implementation of a previous patch added a condition to an if check that
always end up with the if test being true. Execution of the else clause was
inadvertently negated. The additional condition check was incorrect and
unnecessary after the other modifications had been done in that patch.
Remove the check from the if series.
Link: https://lore.kernel.org/r/20200501214310.91713-5-jsmart2021@gmail.com
Fixes: b95b21193c ("scsi: lpfc: Fix loss of remote port after devloss due to lack of RPIs")
Cc: <stable@vger.kernel.org> # v5.4+
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update copyrights to 2020 for files modified in the 12.6.0.4 patch set.
Link: https://lore.kernel.org/r/20200128002312.16346-13-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Coverity reported a memory corruption error for the fdmi attributes
routines:
CID 15768 [Memory Corruption] Out-of-bounds access on FDMI
Sloppy coding of the fmdi structures. In both the lpfc_fdmi_attr_def and
lpfc_fdmi_reg_port_list structures, a field was placed at the start of
payload that may have variable content. The field was given an arbitrary
type (uint32_t). The code then uses the field name to derive an address,
which it used in things such as memset and memcpy. The memset sizes or
memcpy lengths were larger than the arbitrary type, thus coverity reported
an error.
Fix by replacing the arbitrary fields with the real field structures
describing the payload.
Link: https://lore.kernel.org/r/20200128002312.16346-8-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Adjust FC4 Types in FDMI settings
The driver sets FDMI information registring ELS as a FC4 type. ELS is a
fc3 type and should not be registered.
Fix by removing ELS type bit when we register for FDMI Port attributes.
Link: https://lore.kernel.org/r/20200128002312.16346-5-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There are reports of multiple ports on the same system displaying different
hostnames in fabric FDMI displays.
Currently, the driver registers the hostname at initialization and obtains
the hostname via init_utsname()->nodename queried at the time the FC link
comes up. Unfortunately, if the machine hostname is updated after
initialization, such as via DHCP or admin command, the value registered
initially will be incorrect.
Fix by having the driver save the hostname that was registered with FDMI.
The driver then runs a heartbeat action that will check the hostname. If
the name changes, reregister the FMDI data.
The hostname is used in RSNN_NN, FDMI RPA and FDMI RHBA.
Link: https://lore.kernel.org/r/20191218235808.31922-5-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch reworks the fdmi symbolic node name data for the following two
issues:
- Correcting extraneous periods following the DV and HN fdmi data fields.
- Avoiding buffer overflow issues when formatting the data.
The fix to the fist issue is to just remove the characters.
The fix to the second issue has all data being staged in temporary storage
before being moved to the real buffer.
Link: https://lore.kernel.org/r/20191218235808.31922-3-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When debugging a recent discovery customer problem it was very hard to tell
what was happening with the existing discovery log messages. To fully debug
the issue additional log messages were necessary.
Add or extend log messages so that sufficient information is present for
debugging.
Link: https://lore.kernel.org/r/20191018211832.7917-16-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
After study, it was determined there was a double free of a CT iocb during
execution of lpfc_offline_prep and lpfc_offline. The prep routine issued
an abort for some CT iocbs, but the aborts did not complete fast enough for
a subsequent routine that waits for completion. Thus the driver proceeded
to lpfc_offline, which releases any pending iocbs. Unfortunately, the
completions for the aborts were then received which re-released the ct
iocbs.
Turns out the issue for why the aborts didn't complete fast enough was not
their time on the wire/in the adapter. It was the lpfc_work_done routine,
which requires the adapter state to be UP before it calls
lpfc_sli_handle_slow_ring_event() to process the completions. The issue is
the prep routine takes the link down as part of it's processing.
To fix, the following was performed:
- Prevent the offline routine from releasing iocbs that have had aborts
issued on them. Defer to the abort completions. Also means the driver
fully waits for the completions. Given this change, the recognition of
"driver-generated" status which then releases the iocb is no longer
valid. As such, the change made in the commit 296012285c is reverted.
As recognition of "driver-generated" status is no longer valid, this
patch reverts the changes made in
commit 296012285c ("scsi: lpfc: Fix leak of ELS completions on adapter reset")
- Modify lpfc_work_done to allow slow path completions so that the abort
completions aren't ignored.
- Updated the fdmi path to recognize a CT request that fails due to the
port being unusable. This stops FDMI retries. FDMI will be restarted on
next link up.
Link: https://lore.kernel.org/r/20190922035906.10977-14-jsmart2021@gmail.com
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In order to see real addresses, convert %p with %px for kernel addresses
and replace %p with %pf for functions.
While converting, standardize on "x%px" throughout (not %px or 0x%px).
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Max Frame Size value is shown as 34816 in fdmishow from Switch.
The driver uses bbRcvSize in common service param which is obtained from
the READ_SPARM mailbox command. The bbRcvSize field which is displayed is a
three nibble field but the driver is printing a full four nibbles.
Fix by masking off the upper nibble.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In tests with remote ports contantly logging out/logging coupled with
occassional local link bounce, if a remote port is disocnnected for longer
than devloss_tmo and then subsequently reconnected, eventually the test
will fail to login with the remote port and remote port connectivity is
lost.
When devloss_tmo expires, the driver does not free the node struct until
the port or npiv instances is being deleted. The node is left allocated but
the state set to UNUSED. If the node was in the process of logging in when
the local link drop occurred, meaning the RPI was allocated for the node in
order to send the ELS, but not yet registered which comes after successful
login, the node is moved to the NPR state, and if devloss expires, to
UNUSED state. If the remote port comes back, the node associated with it
is restarted and this path happens to allocate a new RPI and overwrites the
prior RPI value. In the cases where the port was logged in and loggs out,
the path did release the RPI but did not set the node rpi value. In the
cases where the remote port never finished logging in, the path never did
the call to release the rpi. In this latter case, when the node is
subsequently restore, the new rpi allocation overwrites the rpi that was
not released, and the rpi is now leaked. Eventually the port will run out
of RPI resources to log into new remote ports.
Fix by following changes:
- When an rpi is released, do so under locks and ensure the node rpi value
is set to a non-allocated value (LPFC_RPI_ALLOC_ERROR). Note:
refactored to a small service routine to avoid indentation issues.
- When re-enabling a node, check the rpi value to determine if a new
allocation is necessary. If already set, use the prior rpi.
Enhanced logging to help in the future.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
If a remote port is removed and remains removed for devloss_tmo, if an RSCN
is subsequently received indicating the presence of the remte port, the
driver does not login to and rediscovery the remote port.
Currently, in order to for a port to be rediscovered post an RSCN, the node
state must be NPR to reflect not logged in. When devloss expires, the node
state is marked UNUSED. When an RSCN occurs, the nodes referenced by the
RSCN will have a NPR_2B_DISC flag set, but the re-login will only be
attempted if the node is in NPR_NODE state. Thus the node is skipped over.
Fix by recognizing the NPR_2B_DISC and UNUSED and transition the node back
to NPR state to allow the re-login to take place.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Some remote ports may be slow in registering their GID_FT protocol
information with the fabric. If the remote port is an initiator, it may
send PLOGI to the port before the GID_FT logic is complete. Meaning, after
accepting the PLOGI, when the driver may see no response to the GID_FT that
is issued after the login to determine the protocols supported so that
proper PRLI's may be transmit. If the driver has no fc4 information, it
currently stops and the remote port is not discovered.
Fix by issuing a LOGO when there is no GID_FT information. The LOGO
completion handling will attempt to re-login if the nport_id is still
present.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In cases of remote-port-side cable pull/replug, there happens to be a
target that upon replug will send the port a PLOGI, a PRLI, and a LOGO.
When this sequence is received by the driver, the PLOGI accepted and a
GFT_ID is issued to find the protocol support for the remote port. While
the GFT_ID is outstanding, a LOGO is received. The driver logs the remote
port out and unregisters the RPI and schedules a new PLOGI transmission.
However, the GFT_ID was not terminated. When it completed, the driver
attempted to transition the remote port to PRLI transmission, which cancels
the PLOGI scheduling. The PRLI transmit attempt is rejected by the adapter
as the remote port is not logged in. No retry is attempted as it's expected
the logout is noted and the supposedly scheduled PLOGI should address the
state. As there is no PLOGI, the remote port does not get re-discovered.
Fix by aborting the outstanding GFT_ID if the related remote port is logged
out.
Ensure a PRLI transmit attempt only occurs if the remote port is logging
in. This avoids the incorrect attempt while logged out.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
FDMI protocol support registration was not accurately showing nvme
support. The fcponly-path clears the parameter object.
Move the code out of the fcponly code path. Fix the FDMI registration data
to properly check for nvme support. Commonize the manner in which the fdmi
routines set protocol support.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This patch avoids that the compiler warns about missing fall-through
annotation when building with W=1.
Cc: James Smart <james.smart@broadcom.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change snprintf to scnprintf. There are generally two cases where using
snprintf causes problems.
1) Uses of size += snprintf(buf, SIZE - size, fmt, ...)
In this case, if snprintf would have written more characters than what the
buffer size (SIZE) is, then size will end up larger than SIZE. In later
uses of snprintf, SIZE - size will result in a negative number, leading
to problems. Note that size might already be too large by using
size = snprintf before the code reaches a case of size += snprintf.
2) If size is ultimately used as a length parameter for a copy back to user
space, then it will potentially allow for a buffer overflow and information
disclosure when size is greater than SIZE. When the size is used to index
the buffer directly, we can have memory corruption. This also means when
size = snprintf... is used, it may also cause problems since size may become
large. Copying to userspace is mitigated by the HARDENED_USERCOPY kernel
configuration.
The solution to these issues is to use scnprintf which returns the number of
characters actually written to the buffer, so the size variable will never
exceed SIZE.
Signed-off-by: Silvio Cesare <silvio.cesare@gmail.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver had duplicated log message numbers making debug difficult.
Make all messages unique.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver is currently reporting the firmware revision not the actual boot
bios version in FDMI data.
Modify the driver to obtain the boot bios version from the adapter and use
that data in the FMDI data sent to the switch.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The switch is rejecting FDMI2 registration for symbolic name. There is a
"\n" in the name string, which the switch dislikes thus rejects the
registration.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The driver is reporting support for NVME even when not configured for NVME
operation.
Fix (and make more readable) when NVME protocol support is indicated.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The FDMI manufacturer value being reported on Linux is inconsistent with
other OS's.
Set the value to "Emulex Corporation" for consistency.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
For files modified as part of 12.2.0.0 patches, update copyright to 2019
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The conversion to enable SCSI and NVME fc4 support ran into an issue with
NPIV support. With NVME, NPIV is not currently supported, but with SCSI it
was. The driver reverted to its lowest setting meaning NPIV with SCSI was
not allowed.
Convert the NPIV checks and implementation so that SCSI can continue to
allow NPIV support.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Current messages report generic actions (like send GID_FT), but misses
reporting for what protocol type the action is taken.
Revise the messages to reflect the FC4 protocol type being worked on.
[mkp: typo]
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update manufacturer attribute to reflect Broadcom Inc, not Emulex
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Add trunking support to the driver. Trunking is found on more recent
asics. In general, trunking appears as a single "port" to the driver
and overall behavior doesn't differ. Link speed is reported as an
aggregate value, while link speed control is done on a per-physical
link basis with all links in the trunk symmetrical. Some commands
returning port information are updated to additionally provide
trunking information. And new ACQEs are generated to report physical
link events relative to the trunk.
This patch contains the following modifications:
- Added link speed settings of 128GB and 256GB.
- Added handling of trunk-related ACQEs, mainly logging and trapping
of physical link statuses.
- Added additional bsg interface to query trunk state by applications.
- Augment link_state sysfs attribtute to display trunk link status
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The switches seem to respond faster to GID_PT vs GID_FT NameServer
queries. Add support for GID_PT to be used over GID_FT to enable
faster storage failover detection. Includes addition of new module
parameter to select between GID_PT and GID_FT (GID_FT is default).
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When taking the board offline while performing i/o, unsafe locking errors
occurred and irq level isn't properly managed.
In lpfc_sli_hba_down, spin_lock_irqsave(&phba->hbalock, flags) does not
disable softirqs raised from timer expiry. It is possible that a softirq is
raised from the lpfc_els_retry_delay routine and recursively requests the same
phba->hbalock spinlock causing deadlock.
Address the deadlocks by creating a new port_list lock. The softirq behavior
can then be managed a level deeper into the calling sequences.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Driver only sends NVME PRLI to a device that also supports FCP. This resuls
in remote ports that don't have fc_remote_ports created for them. The driver
is clearing the nlp_fc4_type for a ndlp at the wrong time.
Fix by moving the nlp_fc4_type clearing to the discovery engine in the
DEVICE_RECOVERY state. Also ensure that rport registration is done for all
nlp_fc4_types.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Change references from "Broadcom Limited" to "Broadcom Inc." in the
copyright message. Update copyright duration if not yet updated for 2018.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Remote port disappearance/reappearances would cause a series of RSCN
events to be delivered to the driver. During the resulting GID_FT
handling, the driver clears the fc4 settings on the remote port, which
makes it skip registration. As such, the nvme associations eventually
fail and return io errors to the applications.
Correct by not clearng the nlp_fc4_types for all nodes in
lpfc_issue_gidft. Instead, when the GID_FT response is handled, clear
the nlp_fc4_types of FCP and NVME prior to evaluating the fc4_type
returned by the GID_FT response. This approach leaves "skipped" nodes
with their nlp_fc4_types intacted.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During target-side port faults, the driver would not recover all target
port logins. This resulted in a loss of nvme device discovery.
The driver is coded to wait for all GID_FT requests to complete before
restarting discovery. A fault is seen where the outstanding GIT_FT
counts are not properly decremented, thus discovery would never
start. Another fault was found in the clearing of the gidft_inp counter
that would be skipped in this condition. And a third fault found with
lpfc_nvme_register_port that would remove a reverence on the ndlp which
then allows a node swap on a port address change to prematurely remove
the reference and release the ndlp.
The following changes are made:
- Correct the decrementing of the outstanding GID_FT counters.
- In RSCN handling, no longer zero the counter before calling to issue
another GID_FT.
- No longer remove the reference on the dlp when the ndlp->nrport value
is not yet null.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When a port is configured for NVME and SCSI Initiator support and it probes
a target supporting both SCSI and NVME, NVME devices are discovered, but
SCSI devices are not.
The nlp_fc4_type for all NPorts should be cleared on Link Up or just before
GID_FTs get issued, as opposed to just during GID_FT cmpl. RSCN activity as
well as Link Up can trigger GID_FT. One GID_FT may complete before the next
one is issued.
Fix by clearng nlp_fc4_type on link up and just before both GID_FTs are
issued. During port swapping, copy nlp_fc4_type to the new ndlp
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Updated Copyright in files updated as part of 12.0.0.0
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
The G7 adapter supports 64G link speeds. Add support to the driver.
In addition, a small cleanup to replace the odd bitmap logic with
a switch case.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When enabled for both SCSI and NVME support, and connected pt2pt to a
SCSI only target, the driver nodelist entry for the remote port is left
in PRLI_ISSUE state and no SCSI LUNs are discovered. Works fine if only
configured for SCSI support.
Error was due to some of the prli points still reflecting the need to
send only 1 PRLI. On a lot of fabric configs, targets were NVME only,
which meant the fabric-reported protocol attributes were only telling
the driver one protocol or the other. Thus things worked fine. With
pt2pt, the driver must send a PRLI for both protocols as there are no
hints on what the target supports. Thus pt2pt targets were hitting the
multiple PRLI issues.
Complete the dual PRLI support. Track explicitly whether scsi (fcp) or
nvme prli's have been sent. Accurately track protocol support detected
on each node as reported by the fabric or probed by PRLI traffic.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
During RSCN storms, the driver does not rediscover some targets. The
driver marks some RSCN as to be handled after the ones it's working
on. The driver missed processing some deferred RSCN.
Move where the driver checks for deferred RSCNs and initiate deferred
RSCN handling if the flag was set. Also revise nport state within the
RSCN confirm routine. Add some state data to a possible debug print to
aid future debugging.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.
Cc: James Smart <james.smart@broadcom.com>
Cc: Dick Kennedy <dick.kennedy@broadcom.com>
Cc: "James E.J. Bottomley" <jejb@linux.vnet.ibm.com>
Cc: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Transitioned some informational discovery messages to now always be
displayed when log_verbose is set.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
vports cannot login to target.
For vports, lpfc_nodelist is allocated for targets only on completion of
GFF_ID command. Driver checks if lpfc_nodelist exists for target before
sending GFF_ID. So, GFF_ID and PLOGI are not sent.
As mentioned by the comment in lpfc_prep_node_fc4type() routine, do not
send GFF_ID only if this NPortID is previously identified as FCP
target. Send GFF_ID if it is a newly identified remote port from GID_FT
response.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Null check at line 966: if (ndlp) {, implies that ndlp might be NULL.
Functions lpfc_nlp_set_state() and lpfc_issue_els_prli() dereference
pointer ndlp. Include these function calls inside the IF block that
tests pointer ndlp.
Addresses-Coverity-ID: 1401856
Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Acked-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
When the driver send the RPA command, it does not send supported FC4
Type NVME to the management server.
Encode NVME (type x28) in the AttribEntry in the RPA command.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
There is a double lock bug here so this will deadlock instead of
unlocking.
Fixes: 1c5b12f763 ("Fix implicit logo and RSCN handling for NVMET")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
NVMET didn't have any RSCN handling at all and
would not execute implicit LOGO when receiving a PLOGI
from an rport that NVMET had in state UNMAPPED.
Clean up the logic in lpfc_nlp_state_cleanup for
initiators (FCP and NVME). NVMET should not respond to
RSCN including allocating new ndlps so this code was
conditionalized when nvmet_support is true. The check
for NLP_RCV_PLOGI in lpfc_setup_disc_node was moved
below the check for nvmet_support to allow the NVMET
to recover initiator nodes correctly. The implicit
logo was introduced with lpfc_rcv_plogi when NVMET gets
a PLOGI on an ndlp in UNMAPPED state. The RSCN handling
was modified to not respond to an RSCN in NVMET. Instead
NVMET sends a GID_FT and determines if an NVMEP_INITIATOR
it has is UNMAPPED but no longer in the zone membership.
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
This patch addresses the smatch issues identified by Dan Carpenter
in http://www.spinics.net/lists/linux-scsi/msg105665.html
The issues are:
drivers/scsi/lpfc/lpfc_ct.c:943 lpfc_cmpl_ct_cmd_gft_id()
error: we previously assumed 'ndlp' could be null (see line 928)
Action: moved under if check
drivers/scsi/lpfc/lpfc_nvmet.c:1694 lpfc_nvmet_unsol_issue_abort()
error: we previously assumed 'ndlp' could be null (see line 1690)
Action: conditionalized arg in printf stmt
drivers/scsi/lpfc/lpfc_nvmet.c:1792 lpfc_nvmet_sol_fcp_issue_abort()
error: we previously assumed 'ndlp' could be null (see line 1788)
Action: conditionalized arg in printf stmt
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Update copyrights to 2017 for all files touched in this patch set
Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com>
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
