diff options
author | Christoph Hellwig <hch@lst.de> | 2016-09-19 11:50:53 -0400 |
---|---|---|
committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-09-26 20:49:25 -0400 |
commit | 92efbb8500230c883ca6966b0ef9f3e18c1e29ba (patch) | |
tree | b282ab533cb049107ba0db2bd8b5dd20810ee291 /Documentation | |
parent | f95819a09c2d6ff2e8a784ff46ba8836f937d07b (diff) |
scsi: dtc: remove from tree
The driver has not seen any maintainer activity or other work that
wasn't tree wide conversion or clenaups in the entire history of
the git tree.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Acked-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/scsi/dtc3x80.txt | 43 | ||||
-rw-r--r-- | Documentation/scsi/scsi-parameters.txt | 3 |
2 files changed, 0 insertions, 46 deletions
diff --git a/Documentation/scsi/dtc3x80.txt b/Documentation/scsi/dtc3x80.txt deleted file mode 100644 index 1d7af9f9a8ed..000000000000 --- a/Documentation/scsi/dtc3x80.txt +++ /dev/null | |||
@@ -1,43 +0,0 @@ | |||
1 | README file for the Linux DTC3180/3280 scsi driver. | ||
2 | by Ray Van Tassle (rayvt@comm.mot.com) March 1996 | ||
3 | Based on the generic & core NCR5380 code by Drew Eckhard | ||
4 | |||
5 | SCSI device driver for the DTC 3180/3280. | ||
6 | Data Technology Corp---a division of Qume. | ||
7 | |||
8 | The 3280 has a standard floppy interface. | ||
9 | |||
10 | The 3180 does not. Otherwise, they are identical. | ||
11 | |||
12 | The DTC3x80 does not support DMA but it does have Pseudo-DMA which is | ||
13 | supported by the driver. | ||
14 | |||
15 | Its DTC406 scsi chip is supposedly compatible with the NCR 53C400. | ||
16 | It is memory mapped, uses an IRQ, but no dma or io-port. There is | ||
17 | internal DMA, between SCSI bus and an on-chip 128-byte buffer. Double | ||
18 | buffering is done automagically by the chip. Data is transferred | ||
19 | between the on-chip buffer and CPU/RAM via memory moves. | ||
20 | |||
21 | The driver detects the possible memory addresses (jumper selectable): | ||
22 | CC00, DC00, C800, and D800 | ||
23 | The possible IRQ's (jumper selectable) are: | ||
24 | IRQ 10, 11, 12, 15 | ||
25 | Parity is supported by the chip, but not by this driver. | ||
26 | Information can be obtained from /proc/scsi/dtc3c80/N. | ||
27 | |||
28 | Note on interrupts: | ||
29 | |||
30 | The documentation says that it can be set to interrupt whenever the | ||
31 | on-chip buffer needs CPU attention. I couldn't get this to work. So | ||
32 | the driver polls for data-ready in the pseudo-DMA transfer routine. | ||
33 | The interrupt support routines in the NCR3280.c core modules handle | ||
34 | scsi disconnect/reconnect, and this (mostly) works. However..... I | ||
35 | have tested it with 4 totally different hard drives (both SCSI-1 and | ||
36 | SCSI-2), and one CDROM drive. Interrupts works great for all but one | ||
37 | specific hard drive. For this one, the driver will eventually hang in | ||
38 | the transfer state. I have tested with: "dd bs=4k count=2k | ||
39 | of=/dev/null if=/dev/sdb". It reads ok for a while, then hangs. | ||
40 | After beating my head against this for a couple of weeks, getting | ||
41 | nowhere, I give up. So.....This driver does NOT use interrupts, even | ||
42 | if you have the card jumpered to an IRQ. Probably nobody will ever | ||
43 | care. | ||
diff --git a/Documentation/scsi/scsi-parameters.txt b/Documentation/scsi/scsi-parameters.txt index 00a03c0cd8c2..8e66dafa41e1 100644 --- a/Documentation/scsi/scsi-parameters.txt +++ b/Documentation/scsi/scsi-parameters.txt | |||
@@ -34,9 +34,6 @@ parameters may be changed at runtime by the command | |||
34 | See drivers/scsi/BusLogic.c, comment before function | 34 | See drivers/scsi/BusLogic.c, comment before function |
35 | BusLogic_ParseDriverOptions(). | 35 | BusLogic_ParseDriverOptions(). |
36 | 36 | ||
37 | dtc3181e= [HW,SCSI] | ||
38 | See Documentation/scsi/g_NCR5380.txt. | ||
39 | |||
40 | eata= [HW,SCSI] | 37 | eata= [HW,SCSI] |
41 | 38 | ||
42 | fdomain= [HW,SCSI] | 39 | fdomain= [HW,SCSI] |