| Commit message (Collapse) | Author | Age | Files | Lines |
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It is possible for the target code to change the loop_id or s_id of a
target session in reaction to an FC fabric change. However, the
session structures are stored in tables that are indexed by these two
keys, and if we just change the session structure but leave the
pointers to it in the old places in the table, havoc can ensue. For
example, a new session might come along that should go in the old slot
in the table and overwrite the old session pointer.
To handle this, add a new tgt_ops->update_sess() method that also
updates the "by loop_id" and "by s_id" lookup tables when a session
changes, so that the keys where a session pointer is stored in these
tables always matches the keys in the session structure itself.
(nab: Drop unnecessary double inversion with FCF_CONF_COMP_SUPPORTED
usage)
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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My draft of SPC-4 says the following about the SCSI name string in
inquiry VPD page 83h:
The SCSI NAME STRING field starts with either:
a) the four UTF-8 characters 'eui.' concatenated with 16, 24, or
32 hexadecimal digits (i.e., the UTF-8 characters 0 through 9
and A through F) for an EUI-64 based identifier (see
7.8.6.5). The first hexadecimal digit shall be the most
significant four bits of the first byte (i.e., most significant
byte) of the EUI-64 based identifier;
b) the four UTF-8 characters 'naa.' concatenated with 16 or 32
hexadecimal digits for an NAA identifier (see 7.8.6.6). The
first hexadecimal digit shall be the most significant four bits
of the first byte (i.e., most significant byte) of the NAA
identifier; or
c) the four UTF-8 characters 'iqn.' concatenated with an iSCSI
Name for an iSCSI-name based identifier (see iSCSI).
However, the .tpg_get_wwn method for tcm_qla2xxx formats the WWN so
the SCSI name string looks like "52:4a:93:7d:24:5f:b2:12,t,0x0001".
This patch corrects the code so that VPD 83h gives a SPC-compliant
SCSI name string like "naa.524a937d245fb212,t,0x0001" while leavig
other uses alone (so configfs will still work with ':' separated WWNs).
Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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All other callers of qlt_update_vp_map() already hold ->vport_slock
while updating the vp target map, so go ahead and add the missing
->vport_slock within qla24xx_disable_vp() code.
Cc: Saurav Kashyap <saurav.kashyap@qlogic.com>
Cc: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Arun Easi <arun.easi@qlogic.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Roland Dreier <roland@purestorage.com>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes
A collection of warning fixes on non-ARM code from Arnd Bergmann:
* 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: s3c: mark s3c2440_clk_add as __init_refok
spi/s3c64xx: use correct dma_transfer_direction type
pcmcia: sharpsl: don't discard sharpsl_pcmcia_ops
USB: EHCI: mark ehci_orion_conf_mbus_windows __devinit
mm/slob: use min_t() to compare ARCH_SLAB_MINALIGN
SCSI: ARM: make fas216_dumpinfo function conditional
SCSI: ARM: ncr5380/oak uses no interrupts
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The fas216_dumpinfo function is only used by __fas216_checkmagic,
which is conditionally compiled, so we should put both functions
inside of the same #ifdef.
Without this patch, building rpc_defconfig results in:
drivers/scsi/arm/fas216.c:182:13: warning: 'fas216_dumpinfo' defined but not used [-Wunused-function]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-scsi@vger.kernel.org
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The ncr5380 driver is included by multiple board specific
drivers, which may or may not use the interrupt handler.
The oak variant doesn't, and should set the DONT_USE_INTR
macro.
Without this patch, building rpc_defconfig results in:
drivers/scsi/arm/../NCR5380.c:1160:20: warning: 'oakscsi_intr' defined but not used [-Wunused-function]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-scsi@vger.kernel.org
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Pull misc SCSI updates from James Bottomley:
"This is an assorted set of stragglers into the merge window with
driver updates for megaraid_sas, lpfc, bfi and mvumi. It also
includes some fairly major fixes for virtio-scsi (scatterlist init),
scsi_debug (off by one error), storvsc (use after free) and qla2xxx
(potential deadlock).
Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (49 commits)
[SCSI] storvsc: Account for in-transit packets in the RESET path
[SCSI] qla2xxx: fix potential deadlock on ha->hardware_lock
[SCSI] scsi_debug: Fix off-by-one bug when unmapping region
[SCSI] Shorten the path length of scsi_cmd_to_driver()
[SCSI] virtio-scsi: support online resizing of disks
[SCSI] virtio-scsi: fix LUNs greater than 255
[SCSI] virtio-scsi: initialize scatterlist structure
[SCSI] megaraid_sas: Version, Changelog, Copyright update
[SCSI] megaraid_sas: Remove duplicate code
[SCSI] megaraid_sas: Add SystemPD FastPath support
[SCSI] megaraid_sas: Add array boundary check for SystemPD
[SCSI] megaraid_sas: Load io_request DataLength in bytes
[SCSI] megaraid_sas: Add module param for configurable MSI-X vector count
[SCSI] megaraid_sas: Remove un-needed completion_lock spinlock calls
[SCSI] lpfc 8.3.35: Update lpfc version for 8.3.35 driver release
[SCSI] lpfc 8.3.35: Fixed not reporting logical link speed to SCSI midlayer when QoS not on
[SCSI] lpfc 8.3.35: Fix error with fabric service parameters causing performance issues
[SCSI] lpfc 8.3.35: Fixed SCSI host create showing wrong link speed on SLI3 HBA ports
[SCSI] lpfc 8.3.35: Fixed not checking solicition in progress bit when verifying FCF record for use
[SCSI] lpfc 8.3.35: Fixed messages for misconfigured port errors
...
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Properly account for I/O in transit before returning from the RESET call.
In the absense of this patch, we could have a situation where the host may
respond to a command that was issued prior to the issuance of the RESET
command at some arbitrary time after responding to the RESET command.
Currently, the host does not do anything with the RESET command.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Lockdep reports:
=== [ cut here ] ===
=========================================================
[ INFO: possible irq lock inversion dependency detected ]
3.6.0-0.0.0.28.36b5ec9-default #1 Not tainted
---------------------------------------------------------
qla2xxx_1_dpc/368 just changed the state of lock:
(&(&ha->vport_slock)->rlock){+.....}, at: [<ffffffffa009b377>] qla2x00_configure_hba+0x197/0x3c0 [qla2xxx]
but this lock was taken by another, HARDIRQ-safe lock in the past:
(&(&ha->hardware_lock)->rlock){-.....}
and interrupts could create inverse lock ordering between them.
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&(&ha->vport_slock)->rlock);
local_irq_disable();
lock(&(&ha->hardware_lock)->rlock);
lock(&(&ha->vport_slock)->rlock);
<Interrupt>
lock(&(&ha->hardware_lock)->rlock);
=== [ cut here ] ===
Fix the potential deadlock by disabling IRQs while holding ha->vport_slock.
Reported-and-tested-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Currently it is possible to unmap one more block than user requested to
due to the off-by-one error in unmap_region(). This is probably due to
the fact that the end variable despite its name actually points to the
last block to unmap + 1. However in the condition it is handled as the
last block of the region to unmap.
The bug was not previously spotted probably due to the fact that the
region was not zeroed, which has changed with commit
be1dd78de5686c062bb3103f9e86d444a10ed783. With that commit we were able
to corrupt the ext4 file system on 256M scsi_debug device with LBPRZ
enabled using fstrim.
Since the 'end' semantic is the same in several functions there this
commit just fixes the condition to use the 'end' variable correctly in
that context.
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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This patch tries to shorten the path length of scsi_cmd_to_driver(). As only
REQ_TYPE_BLOCK_PC commands can be submitted without a driver, so we could
avoid the related NULL checking, as long as we make sure we don't use it for
REQ_TYPE_BLOCK_PC type commands. Plus, this fixes a bug where you get
different behaviors from REQ_TYPE_BLOCK_PC commands when a driver is and isn't
attached.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Support the LUN parameter change event. Currently, the host fires this event
when the capacity of a disk is changed from the virtual machine monitor.
The resize then appears in the kernel log like this:
sd 0:0:0:0: [sda] 46137344 512-byte logical blocks: (23.6 GB/22.0 GIb)
sda: detected capacity change from 22548578304 to 23622320128
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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virtio-scsi needs to report LUNs greater than 256 using the "flat"
format. Because the Linux SCSI layer just maps the SCSI LUN to
an u32, without any parsing, these end up in the range from 16640
to 32767. Fix max_lun to account for the possibility that logical
unit numbers are encoded with the "flat" format.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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The sg struct is used without being initialized, which breaks
when CONFIG_DEBUG_SG is enabled.
Cc: stable@vger.kernel.org
Signed-off-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Load io_request->DataLength in bytes for newer firmware that supports high
availability.
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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when QoS not on
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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performance issues
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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HBA ports
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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verifying FCF record for use
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Fixed messages for misconfigured port errors to be consistent for
all OS platforms.
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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with longer module names
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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the first address in
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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In LUN RESET testing involving NetApp targets, it is observed that LUN
RESET is failing. The fc_fcp_resp() is not completing the completion
for the LUN RESET task since fc_fcp_resp assumes that the FCP_RSP_INFO
is 8 bytes with the 4 byte reserved field, where in case of NetApp targets
the FCP_RSP to LUN RESET only has 4 bytes of FCP_RSP_INFO. This leads
fc_fcp_resp to error out w/o completing the task completion, eventually
causing LUN RESET to be escalated to host reset, which is not very nice.
Per FCP-3 r04, clause 9.5.15 and Table 23, the FCP_RSP_INFO field can be either
4 bytes or 8 bytes, with the last 4 bytes as "Reserved (if any)". Therefore it
is valid to have 4 bytes FCP_RSP_INFO like some of the NetApp targets behave.
Fixing this by validating the FCP_RSP_INFO against both the two spec allowed
length.
Reported-by: Frank Zhang <frank_1.zhang@intel.com>
Signed-off-by: Yi Zou <yi.zou@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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SCSI errors were generated while writing to LUNs
connected via NPIV ports.
Debugging this it was found that the FCoE packets
transmitted via the NPIV ports were not tagged with
correct user priority as negotiated with peer by DCB
agent. This resulted in FCoE traffic going with priority
zero(0) that did not have priority flow control (PFC)
enabled for it. The initiator after transferring data
to the target never saw any reply indicating the transfer
was complete. This resulted in error recovery (ABTS) and
SCSI command retries by the scsi-mid layer; eventually
resulting in I/O errors.
This patch fixes this issue by keeping the FCoE user
priority information in the fcoe_interface instance
that is common for both the physical port as well as
NPIV ports connected to that physical port; instead
of storing it in fcoe_port structure that has a per
port instance.
Signed-off-by: Neerav Parikh <Neerav.Parikh@intel.com>
Acked-by: Yi Zou <yi.zou@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Marcus Dennis <marcusx.e.dennis@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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[jejb: fix up for spelling correction patch]
Signed-off-by: Shun Fu <fushun@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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- Modified the firmware naming convention to contain the
firmware image version (3.1.0.0).
- The new convention is <firmware-image>-<firmware-version>.bin
- The change will enforce loading only compatible firmware with this driver
and also avoid over-writing the old firmware image in-order to load new
version driver as the firmware names used to be the same.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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- Add FRU sub-module to support FRU read/write/update.
- Add support to read/write from the temp FRU module.
[jejb: fix checkpatch issues]
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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- Add Power On Hours display support during sfpshow
- Fix to properly set the diag temperature sensor status variable.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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- Added support to configure minimum bandwidth for a pcifn.
- Minimum bandwith is guaranteed at per queue level.
- Added support to update pcifn bandwidth dynamically without
a server reboot.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Add capability to limit the number of exchanges on a port to
avoid queue-full conditions from the target side.
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Made changes to provide an option for user to configure the
bandwidth percentage for High/Medium/Low QoS priorities.
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@brocade.com>
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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- Made changes such that once the PWWN is acquired from the fabric through FAA,
and if the FAPWWN configuration is modified on the switch side, driver should
show relevant information to the user.
- Added logic to cache the reason code when the given port is disabled implicitl
due to FAA error condition.
- If the port is disabled, while sending SCN to upper layer, update the
reason code appropriately. With this, BFA FC port state machine will enter
into faa_err_config state. This state will be shown to the user.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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- Introduced support for D-Port which is a new port mode during which
link level diagnostics can be run.
- Provided mechanism to dynamically configure D-Port and initiate diagnostic
tests to isolate any link level issues.
- In D-Port mode, the HBA port does not participate in fabric or login to the
remote device or run data traffic.
- Diagnostic tests include running various loopback tests in conjunction with
the attached device.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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- Enhance tracing to include both tskim tag and event.
- Handle the tskim abort response from firmware in the
tskim state machine cleanup state and proceed with the
tskim cleanup.
Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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