Граф коммитов

25 Коммитов

Автор SHA1 Сообщение Дата
Quinn Tran 9fd26c633e scsi: qla2xxx: edif: Fix EDIF bsg
Various EDIF bsgs did not properly fill out the reply_payload_rcv_len
field. This causes app to parse empty data in the return payload.

Link: https://lore.kernel.org/r/20211026115412.27691-13-njavali@marvell.com
Fixes: 7ebb336e45 ("scsi: qla2xxx: edif: Add start + stop bsgs")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:52:00 -04:00
Quinn Tran 36f468bfe9 scsi: qla2xxx: edif: Fix inconsistent check of db_flags
db_flags field is a bit field. Replace value check with bit flag check.

Link: https://lore.kernel.org/r/20211026115412.27691-12-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:52:00 -04:00
Quinn Tran 0f6d600a26 scsi: qla2xxx: edif: Increase ELS payload
Currently, firmware limits ELS payload to FC frame size/2112.  This patch
adjusts memory buffer size to be able to handle max ELS payload.

Link: https://lore.kernel.org/r/20211026115412.27691-11-njavali@marvell.com
Fixes: 84318a9f01 ("scsi: qla2xxx: edif: Add send, receive, and accept for auth_els")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:52:00 -04:00
Quinn Tran 6c9998ce4b scsi: qla2xxx: edif: Tweak trace message
Modify trace messages for additional debugability.

Link: https://lore.kernel.org/r/20211026115412.27691-9-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:52:00 -04:00
Quinn Tran 8062b742d3 scsi: qla2xxx: edif: Replace list_for_each_safe with list_for_each_entry_safe
This patch is per review comment by Hannes Reinecke from previous
submission to replace list_for_each_safe with list_for_each_entry_safe.

Link: https://lore.kernel.org/r/20211026115412.27691-8-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:52:00 -04:00
Quinn Tran b1af26c245 scsi: qla2xxx: edif: Flush stale events and msgs on session down
On session down, driver will flush all stale messages and doorbell
events. This prevents authentication application from having to process
stale data.

Link: https://lore.kernel.org/r/20211026115412.27691-7-njavali@marvell.com
Fixes: 4de067e5df ("scsi: qla2xxx: edif: Add N2N support for EDIF")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Karunakara Merugu <kmerugu@marvell.com>
Signed-off-by: Karunakara Merugu <kmerugu@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:51:59 -04:00
Quinn Tran b492d6a488 scsi: qla2xxx: edif: Fix app start delay
Current driver does unnecessary pause for each session to get to certain
state before allowing the app start call to return. In larger environment,
this introduces a long delay.  Originally the delay was meant to
synchronize app and driver. However, the with current implementation the
two sides use various events to synchronize their state.

The same is applied to the authentication failure call.

Link: https://lore.kernel.org/r/20211026115412.27691-6-njavali@marvell.com
Fixes: 4de067e5df ("scsi: qla2xxx: edif: Add N2N support for EDIF")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:51:59 -04:00
Quinn Tran 8e6d5df3cb scsi: qla2xxx: edif: Fix app start fail
On app start, all sessions need to be reset to see if secure connection can
be made. Fix the broken check which prevents that process.

Link: https://lore.kernel.org/r/20211026115412.27691-5-njavali@marvell.com
Fixes: 4de067e5df ("scsi: qla2xxx: edif: Add N2N support for EDIF")
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-10-26 23:51:59 -04:00
kernel test robot 17f3df8fd7 scsi: qla2xxx: edif: Fix returnvar.cocci warnings
drivers/scsi/qla2xxx/qla_edif.c:213:25-29: Unneeded variable: "rval". Return "0"
on line 264

Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

Link: https://lore.kernel.org/r/20210817051315.2477-12-njavali@marvell.com
Fixes: 7ebb336e45 ("scsi: qla2xxx: edif: Add start + stop bsgs")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-23 22:36:54 -04:00
Quinn Tran 1dc64a360b scsi: qla2xxx: edif: Do secure PLOGI when auth app is present
For initiator mode, always do secure login when authentication app started.
Also remove redundant flags to indicate secure connection.

Link: https://lore.kernel.org/r/20210817051315.2477-7-njavali@marvell.com
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-23 22:36:53 -04:00
Quinn Tran 4de067e5df scsi: qla2xxx: edif: Add N2N support for EDIF
For EDIF + N2N to work, firmware 9.8 or later is required. The driver will
pause after PLOGI to allow app to authenticate. Once authentication
completes, app will tell driver to do PRLI.

Link: https://lore.kernel.org/r/20210817051315.2477-6-njavali@marvell.com
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-23 22:36:53 -04:00
Quinn Tran 225479296c scsi: qla2xxx: edif: Reject AUTH ELS on session down
Reject inflight AUTH ELS if driver is going through session recovery.

Link: https://lore.kernel.org/r/20210817051315.2477-3-njavali@marvell.com
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-23 22:36:52 -04:00
Quinn Tran b15ce2f34c scsi: qla2xxx: edif: Fix stale session
When firmware indicates session has been torn down via UPDATE SA IOCB or
ELS Passthrough IOCB, the driver needs to also tear down the session.

Link: https://lore.kernel.org/r/20210817051315.2477-2-njavali@marvell.com
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-08-23 22:36:52 -04:00
Colin Ian King 77d0f07aba scsi: qla2xxx: Remove redundant initialization of variable num_cnt
The variable num_cnt is being initialized with a value that is never read,
it is being updated later on. The assignment is redundant and can be
removed.

Link: https://lore.kernel.org/r/20210804131344.112635-1-colin.king@canonical.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Addresses-Coverity: ("Unused value")
2021-08-05 23:21:08 -04:00
Colin Ian King 0f783c2d64 scsi: qla2xxx: Fix spelling mistakes "allloc" -> "alloc"
There are two spelling mistakes with the same triple l in alloc, one in a
comment, the other in a ql_dbg() debug message. Fix them.

Link: https://lore.kernel.org/r/20210729082413.4761-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-30 22:31:55 -04:00
Quinn Tran 71bef5020c scsi: qla2xxx: edif: Increment command and completion counts
Increment the command and the completion counts.

Link: https://lore.kernel.org/r/20210624052606.21613-11-njavali@marvell.com
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:44 -04:00
Quinn Tran 44d018577f scsi: qla2xxx: edif: Add encryption to I/O path
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

After the completion of PLOGI, both sides have authenticated and PRLI
completed, encrypted I/Os are allowed to proceed.

 - Use new firmware API to encrypt traffic on the wire

 - Add driver parameter to enable|disable EDIF feature

   # modprobe qla2xxx ql2xsecenable=1

Link: https://lore.kernel.org/r/20210624052606.21613-10-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:43 -04:00
Quinn Tran 7a09e8d92c scsi: qla2xxx: edif: Add doorbell notification for app
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

During runtime, driver and authentication application need to stay in sync
in terms of: Session being down|up, arrival of new authentication
message (AUTH ELS) and SADB update completion.

These events are queued up as doorbell to the authentication
application. Application would read this doorbell on regular basis to stay
up to date. Each SCSI host would have a separate doorbell queue.

The doorbell interface can daisy chain a list of events for each read. Each
event contains an event code + hint to help application steer the next
course of action.

Link: https://lore.kernel.org/r/20210624052606.21613-9-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:43 -04:00
Quinn Tran 9efea843a9 scsi: qla2xxx: edif: Add detection of secure device
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

There is no FC switch scan service that can indicate whether a device is
secure or non-secure.

In order to detect whether the remote port supports encrypted operation,
driver must first do a PLOGI with the remote device. On completion of the
PLOGI, driver will query firmware to see if the device supports secure
login. To do that, driver + firmware must advertise the security bit via
PLOGI's service parameter. The remote device shall respond using the same
service parameter whether it supports it or not.

Link: https://lore.kernel.org/r/20210624052606.21613-8-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:43 -04:00
Quinn Tran 8a4bb2c1dd scsi: qla2xxx: edif: Add authentication pass + fail bsgs
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

On completion of the authentication process, the authentication application
will notify driver on whether it is successful or not.

In case of success, application will use the QL_VND_SC_AUTH_OK BSG call to
tell driver to proceed to the PRLI phase.

In case of failure, application will use the QL_VND_SC_AUTH_FAIL bsg call
to tell driver to tear down the connection and retry. In the case where an
existing session is active, the re-key process can fail. The session tear
down ensures data is not further compromised.

Link: https://lore.kernel.org/r/20210624052606.21613-7-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:43 -04:00
Quinn Tran dd30706e73 scsi: qla2xxx: edif: Add key update
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

As part of the authentication process, the authentication application will
generate a SADB entry (Security Association/SA, key, SPI value, etc). This
SADB is then passed to driver to be programmed into hardware. There will be
a pair of SADB's (Tx and Rx) for each connection.

After some period, the application can choose to change the key. At that
time, a new set of SADB pair is given to driver. The old set of SADB will
be deleted.

Add a new bsg call (QL_VND_SC_SA_UPDATE) to allow application to allow
adding or deleting SADB entries.  Driver will not keep the key in
memory. It will pass it to HW.

It is assumed that application will assign a unique SPI value to this SADB
(SA + key). Driver + hardware will assign a handle to track this unique
SPI/SADB.

Link: https://lore.kernel.org/r/20210624052606.21613-6-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:43 -04:00
Quinn Tran fac2807946 scsi: qla2xxx: edif: Add extraction of auth_els from the wire
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

Once authentication messages sent from a remote device have arrived, each
message is extracted and placed in a buffer for application to retrieve.
The FC frame header will be stripped, leaving behind the AUTH ELS payload.
It is up to the application to strip the AUTH ELS header to get to the
actual authentication message.

Link: https://lore.kernel.org/r/20210624052606.21613-5-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:43 -04:00
Quinn Tran 84318a9f01 scsi: qla2xxx: edif: Add send, receive, and accept for auth_els
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

Add the ability for authentication application to send and retrieve
messages as part of the authentication process via existing
FC_BSG_HST_ELS_NOLOGIN BSG interface.

To send a message, application is expected to format the data in the AUTH
ELS format. Refer to FC-SP2 for details.

If a message was received, application is required to reply with either a
LS_ACC or LS_RJT complete the exchange using the same interface. Otherwise,
remote device will treat it as a timeout.

Link: https://lore.kernel.org/r/20210624052606.21613-4-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:42 -04:00
Quinn Tran 7878f22a2e scsi: qla2xxx: edif: Add getfcinfo and statistic bsgs
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

Add two new BSG calls:

 - QL_VND_SC_GET_FCINFO: Application can from time to time request a list
   of all FC ports or a single device that supports secure connection.  If
   driver sees a new or old device has logged into the switch, this call is
   used to check for the WWPN.

 - QL_VND_SC_GET_STATS: Application request for various statistics for each
   FC port.

Link: https://lore.kernel.org/r/20210624052606.21613-3-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:42 -04:00
Quinn Tran 7ebb336e45 scsi: qla2xxx: edif: Add start + stop bsgs
Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

Add two new BSG calls:

 - QL_VND_SC_APP_START: Application will announce its presence to driver
   with this call. Driver will restart all connections to see if remote
   device supports security or not.

 - QL_VND_SC_APP_STOP: Application announces it is in the process of
   exiting. Driver will restart all connections to revert back to
   non-secure. Provided the remote device is willing to allow a non-secure
   connection.

Link: https://lore.kernel.org/r/20210624052606.21613-2-njavali@marvell.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: Larry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: Duane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: Duane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Rick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2021-07-27 00:06:42 -04:00