Commit 62e3bfa4 authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Martin K. Petersen
parent d2ba7ca3
.. SPDX-License-Identifier: GPL-2.0
======================================
README file for the dc395x SCSI driver README file for the dc395x SCSI driver
========================================== ======================================
Status Status
------ ------
...@@ -18,14 +21,14 @@ http://lists.twibble.org/mailman/listinfo/dc395x/ ...@@ -18,14 +21,14 @@ http://lists.twibble.org/mailman/listinfo/dc395x/
Parameters Parameters
---------- ----------
The driver uses the settings from the EEPROM set in the SCSI BIOS The driver uses the settings from the EEPROM set in the SCSI BIOS
setup. If there is no EEPROM, the driver uses default values. setup. If there is no EEPROM, the driver uses default values.
Both can be overridden by command line parameters (module or kernel Both can be overridden by command line parameters (module or kernel
parameters). parameters).
The following parameters are available: The following parameters are available:
- safe safe
Default: 0, Acceptable values: 0 or 1 Default: 0, Acceptable values: 0 or 1
If safe is set to 1 then the adapter will use conservative If safe is set to 1 then the adapter will use conservative
...@@ -33,52 +36,63 @@ The following parameters are available: ...@@ -33,52 +36,63 @@ The following parameters are available:
shortcut for dc395x=7,4,9,15,2,10 shortcut for dc395x=7,4,9,15,2,10
- adapter_id adapter_id
Default: 7, Acceptable values: 0 to 15 Default: 7, Acceptable values: 0 to 15
Sets the host adapter SCSI ID. Sets the host adapter SCSI ID.
- max_speed max_speed
Default: 1, Acceptable value: 0 to 7 Default: 1, Acceptable value: 0 to 7
0 = 20 Mhz
1 = 12.2 Mhz == ========
2 = 10 Mhz 0 20 Mhz
3 = 8 Mhz 1 12.2 Mhz
4 = 6.7 Mhz 2 10 Mhz
5 = 5.8 Hhz 3 8 Mhz
6 = 5 Mhz 4 6.7 Mhz
7 = 4 Mhz 5 5.8 Hhz
6 5 Mhz
- dev_mode 7 4 Mhz
== ========
dev_mode
Bitmap for device configuration Bitmap for device configuration
DevMode bit definition: DevMode bit definition:
=== ======== ======== =========================================
Bit Val(hex) Val(dec) Meaning Bit Val(hex) Val(dec) Meaning
*0 0x01 1 Parity check === ======== ======== =========================================
*1 0x02 2 Synchronous Negotiation 0 0x01 1 Parity check
*2 0x04 4 Disconnection 1 0x02 2 Synchronous Negotiation
*3 0x08 8 Send Start command on startup. (Not used) 2 0x04 4 Disconnection
*4 0x10 16 Tagged Command Queueing 3 0x08 8 Send Start command on startup. (Not used)
*5 0x20 32 Wide Negotiation 4 0x10 16 Tagged Command Queueing
5 0x20 32 Wide Negotiation
- adapter_mode === ======== ======== =========================================
adapter_mode
Bitmap for adapter configuration Bitmap for adapter configuration
AdaptMode bit definition AdaptMode bit definition
===== ======== ======== ====================================================
Bit Val(hex) Val(dec) Meaning Bit Val(hex) Val(dec) Meaning
*0 0x01 1 Support more than two drives. (Not used) ===== ======== ======== ====================================================
*1 0x02 2 Use DOS compatible mapping for HDs greater than 1GB. 0 0x01 1 Support more than two drives. (Not used)
*2 0x04 4 Reset SCSI Bus on startup. 1 0x02 2 Use DOS compatible mapping for HDs greater than 1GB.
*3 0x08 8 Active Negation: Improves SCSI Bus noise immunity. 2 0x04 4 Reset SCSI Bus on startup.
3 0x08 8 Active Negation: Improves SCSI Bus noise immunity.
4 0x10 16 Immediate return on BIOS seek command. (Not used) 4 0x10 16 Immediate return on BIOS seek command. (Not used)
(*)5 0x20 32 Check for LUNs >= 1. (*)5 0x20 32 Check for LUNs >= 1.
===== ======== ======== ====================================================
- tags tags
Default: 3, Acceptable values: 0-5 Default: 3, Acceptable values: 0-5
The number of tags is 1<<x, if x has been specified The number of tags is 1<<x, if x has been specified
- reset_delay reset_delay
Default: 1, Acceptable values: 0-180 Default: 1, Acceptable values: 0-180
The seconds to not accept commands after a SCSI Reset The seconds to not accept commands after a SCSI Reset
...@@ -95,8 +109,9 @@ License (GPL). Please read it, before using this driver. It should be ...@@ -95,8 +109,9 @@ License (GPL). Please read it, before using this driver. It should be
included in your kernel sources and with your distribution. It carries the included in your kernel sources and with your distribution. It carries the
filename COPYING. If you don't have it, please ask me to send you one by filename COPYING. If you don't have it, please ask me to send you one by
email. email.
Note: The GNU GPL says also something about warranty and liability.
Note: The GNU GPL says also something about warranty and liability.
Please be aware the following: While we do my best to provide a working and Please be aware the following: While we do my best to provide a working and
reliable driver, there is a chance, that it will kill your valuable data. reliable driver, there is a chance, that it will kill your valuable data.
We refuse to take any responsibility for that. The driver is provided as-is We refuse to take any responsibility for that. The driver is provided as-is
and YOU USE IT AT YOUR OWN RESPONSIBILITY. and YOU USE IT AT YOUR OWN RESPONSIBILITY.
...@@ -17,5 +17,6 @@ Linux SCSI Subsystem ...@@ -17,5 +17,6 @@ Linux SCSI Subsystem
bnx2fc bnx2fc
BusLogic BusLogic
cxgb3i cxgb3i
dc395x
scsi_transport_srp/figures scsi_transport_srp/figures
...@@ -4681,7 +4681,7 @@ L: dc395x@twibble.org ...@@ -4681,7 +4681,7 @@ L: dc395x@twibble.org
W: http://twibble.org/dist/dc395x/ W: http://twibble.org/dist/dc395x/
W: http://lists.twibble.org/mailman/listinfo/dc395x/ W: http://lists.twibble.org/mailman/listinfo/dc395x/
S: Maintained S: Maintained
F: Documentation/scsi/dc395x.txt F: Documentation/scsi/dc395x.rst
F: drivers/scsi/dc395x.* F: drivers/scsi/dc395x.*
DCCP PROTOCOL DCCP PROTOCOL
......
...@@ -1187,7 +1187,7 @@ config SCSI_DC395x ...@@ -1187,7 +1187,7 @@ config SCSI_DC395x
This driver works, but is still in experimental status. So better This driver works, but is still in experimental status. So better
have a bootable disk and a backup in case of emergency. have a bootable disk and a backup in case of emergency.
Documentation can be found in <file:Documentation/scsi/dc395x.txt>. Documentation can be found in <file:Documentation/scsi/dc395x.rst>.
To compile this driver as a module, choose M here: the To compile this driver as a module, choose M here: the
module will be called dc395x. module will be called dc395x.
......
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