projects / OpenSPARC-T2-SAM / blame
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| 920dae64 AT |
1 | |
| 2 | SAS: This is a SAM implementation of Serial Attached SCSI (SAS) disk controller. | |
| 3 | It models LSI SAS1064E, which is designed based on the Fusion-MPT (Message Passing | |
| 4 | Technology) architecture. It has PCIE interface through which the controller can | |
| 5 | be connected to any PCIE bus. Each controller can support up to 4 SAS disks (target 0~3). | |
| 6 | This implementation does not include a timing model, so the I/O request is served and | |
| 7 | completed immediately after it is received by the controller assuming no simulated | |
| 8 | disk delay. Also, the SAS disk is implemented based on a generic disk model. | |
| 9 | ||
| 10 | ||
| 11 | a) sysconf format for this module | |
| 12 | sysconf sas <instance name> bus=<bus name> dev=<device id> fun=<function number> | |
| 13 | targets=<init file> [-d[0|1|2]] | |
| 14 | where, | |
| 15 | 'instance name' is the name of this controller; | |
| 16 | 'bus name' is the name of PCIE bus this controller is to be connected; | |
| 17 | 'device number' is the PCIE device number; | |
| 18 | 'function number' is the PCIE function number; | |
| 19 | 'init file' is the configuration file for the attached SAS disks; | |
| 20 | '-d' is the optional argument that sets the debug level to 0, 1 or 2. | |
| 21 | ||
| 22 | Examples sysconf line: | |
| 23 | sysconf sas sas0 bus=pcie_a dev=0 fun=1 targets=sasdisk.init -d2 | |
| 24 | # A SAS controller called "sas0" is attached to PCIE bus "pcie_a" as device 0 function 1. | |
| 25 | # The configuration for the attached disks is in file "sasdisk.init". | |
| 26 | # The debug level is set to 2. | |
| 27 | ||
| 28 | ||
| 29 | b) UI commands for this module | |
| 30 | ui format: <instance name> <command> <command args> | |
| 31 | commands are: | |
| 32 | debug [<level>] | |
| 33 | - set the debug level for debug prints to 'level' | |
| 34 | if 'level' not provided, print current debug level | |
| 35 | 'level' = [0|1|2] | |
| 36 | disk | |
| 37 | - show all attached disks | |
| 38 | All the above information is available by typing <instance name> on SAM UI prompt. | |
| 39 | Eg, 'sas0' based on above example sysconf line. | |
| 40 | ||
| 41 | ||
| 42 | c) UI commands for attached disks | |
| 43 | ui format: gdisk <disk name> <command> <command args> | |
| 44 | commands are: | |
| 45 | label | |
| 46 | - display disk label | |
| 47 | geometry | |
| 48 | - display disk geometry | |
| 49 | stat | |
| 50 | - display any supported stats | |
| 51 | partitions [number] | |
| 52 | - display partition[number] info | |
| 53 | - display all partitions by default | |
| 54 | vpd | |
| 55 | - display supported disk VPD data | |
| 56 | op [file] | |
| 57 | - redirect all o/p to <file> | |
| 58 | - by default print current op file | |
| 59 | debug [level] | |
| 60 | - set debug verbosity to <level> | |
| 61 | All the above information is available by typing 'gdisk help' on SAM UI prompt. | |
| 62 | Also, typing 'gdisk' will list all attached disks in the system. |