scsi: documentation: Clean up overview

 - Change http to https where the latter works

 - Drop references to I2O (Intelligent I/O)

 - Use lore.kernel.org instead of marc.info for email links

 - Update the location of the scsi_debug documentation
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20240408025425.18778-3-rdunlap@infradead.orgSigned-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Documentation/driver-api/scsi.rst

@@ -20,7 +20,7 @@ Although the old parallel (fast/wide/ultra) SCSI bus has largely fallen
 out of use, the SCSI command set is more widely used than ever to
 communicate with devices over a number of different busses.
 
-The `SCSI protocol <http://www.t10.org/scsi-3.htm>`__ is a big-endian
+The `SCSI protocol <https://www.t10.org/scsi-3.htm>`__ is a big-endian
 peer-to-peer packet based protocol. SCSI commands are 6, 10, 12, or 16
 bytes long, often followed by an associated data payload.
 
@@ -28,8 +28,7 @@ SCSI commands can be transported over just about any kind of bus, and
 are the default protocol for storage devices attached to USB, SATA, SAS,
 Fibre Channel, FireWire, and ATAPI devices. SCSI packets are also
 commonly exchanged over Infiniband,
-`I2O <http://i2o.shadowconnect.com/faq.php>`__, TCP/IP
-(`iSCSI <https://en.wikipedia.org/wiki/ISCSI>`__), even `Parallel
+TCP/IP (`iSCSI <https://en.wikipedia.org/wiki/ISCSI>`__), even `Parallel
 ports <http://cyberelk.net/tim/parport/parscsi.html>`__.
 
 Design of the Linux SCSI subsystem
@@ -170,9 +169,9 @@ drivers/scsi/scsi_netlink.c
 
 Infrastructure to provide async events from transports to userspace via
 netlink, using a single NETLINK_SCSITRANSPORT protocol for all
-transports. See `the original patch
-submission <http://marc.info/?l=linux-scsi&m=115507374832500&w=2>`__ for
-more details.
+transports. See `the original patch submission
+<https://lore.kernel.org/linux-scsi/1155070439.6275.5.camel@localhost.localdomain/>`__
+for more details.
 
 .. kernel-doc:: drivers/scsi/scsi_netlink.c
    :internal:
@@ -328,11 +327,11 @@ the ordinary is seen.
 To be more realistic, the simulated devices have the transport
 attributes of SAS disks.
 
-For documentation see http://sg.danny.cz/sg/sdebug26.html
+For documentation see http://sg.danny.cz/sg/scsi_debug.html
 
 todo
 ~~~~
 
 Parallel (fast/wide/ultra) SCSI, USB, SATA, SAS, Fibre Channel,
-FireWire, ATAPI devices, Infiniband, I2O, Parallel ports,
+FireWire, ATAPI devices, Infiniband, Parallel ports,
 netlink...