docs: networking: device drivers: convert smsc/smc9.txt to ReST

- add SPDX header;
- mark code blocks and literals as such;
- adjust identation, whitespaces and blank lines where needed;
- add to networking/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/networking/device_drivers/index.rst

@@ -46,6 +46,7 @@ Contents:
    neterion/vxge
    qualcomm/rmnet
    sb1000
+   smsc/smc9
 
 .. only::  subproject and html
 

Documentation/networking/device_drivers/smsc/smc9.rst

@@ -0,0 +1,48 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+================
+SMC 9xxxx Driver
+================
+
+Revision 0.12
+
+3/5/96
+
+Copyright 1996  Erik Stahlman
+
+Released under terms of the GNU General Public License.
+
+This file contains the instructions and caveats for my SMC9xxx driver.  You
+should not be using the driver without reading this file.
+
+Things to note about installation:
+
+  1. The driver should work on all kernels from 1.2.13 until 1.3.71.
+     (A kernel patch is supplied for 1.3.71 )
+
+  2. If you include this into the kernel, you might need to change some
+     options, such as for forcing IRQ.
+
+
+  3.  To compile as a module, run 'make'.
+      Make will give you the appropriate options for various kernel support.
+
+  4.  Loading the driver as a module::
+
+	use:   insmod smc9194.o
+	optional parameters:
+		io=xxxx    : your base address
+		irq=xx	   : your irq
+		ifport=x   :	0 for whatever is default
+				1 for twisted pair
+				2 for AUI  ( or BNC on some cards )
+
+How to obtain the latest version?
+
+FTP:
+	ftp://fenris.campus.vt.edu/smc9/smc9-12.tar.gz
+	ftp://sfbox.vt.edu/filebox/F/fenris/smc9/smc9-12.tar.gz
+
+
+Contacting me:
+    erik@mail.vt.edu

Documentation/networking/device_drivers/smsc/smc9.txt

@@ -1,42 +0,0 @@
-
-SMC 9xxxx Driver 
-Revision 0.12 
-3/5/96
-Copyright 1996  Erik Stahlman 
-Released under terms of the GNU General Public License. 
-
-This file contains the instructions and caveats for my SMC9xxx driver.  You
-should not be using the driver without reading this file.  
-
-Things to note about installation:
-
-  1. The driver should work on all kernels from 1.2.13 until 1.3.71.
-	(A kernel patch is supplied for 1.3.71 )
-
-  2. If you include this into the kernel, you might need to change some
-	options, such as for forcing IRQ.   
-
- 
-  3.  To compile as a module, run 'make' .   
-	Make will give you the appropriate options for various kernel support.
- 
-  4.  Loading the driver as a module :
-
-	use:   insmod smc9194.o 
-	optional parameters:
-		io=xxxx    : your base address
-		irq=xx	   : your irq 
-		ifport=x   :	0 for whatever is default
-				1 for twisted pair
-				2 for AUI  ( or BNC on some cards )
-
-How to obtain the latest version? 
-	
-FTP:  
-	ftp://fenris.campus.vt.edu/smc9/smc9-12.tar.gz
-	ftp://sfbox.vt.edu/filebox/F/fenris/smc9/smc9-12.tar.gz 
-   
-
-Contacting me:
-    erik@mail.vt.edu
- 

drivers/net/ethernet/smsc/Kconfig

@@ -28,7 +28,7 @@ config SMC9194
 	  option if you have a DELL laptop with the docking station, or
 	  another SMC9192/9194 based chipset.  Say Y if you want it compiled
 	  into the kernel, and read the file
-	  <file:Documentation/networking/device_drivers/smsc/smc9.txt>.
+	  <file:Documentation/networking/device_drivers/smsc/smc9.rst>.
 
 	  To compile this driver as a module, choose M here. The module
 	  will be called smc9194.
@@ -44,7 +44,7 @@ config SMC91X
 	  This is a driver for SMC's 91x series of Ethernet chipsets,
 	  including the SMC91C94 and the SMC91C111. Say Y if you want it
 	  compiled into the kernel, and read the file
-	  <file:Documentation/networking/device_drivers/smsc/smc9.txt>.
+	  <file:Documentation/networking/device_drivers/smsc/smc9.rst>.
 
 	  This driver is also available as a module ( = code which can be
 	  inserted in and removed from the running kernel whenever you want).