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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-23 10:36:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-23 10:36:19 -0800
commitf290cbacb697b7bc8fc67d3988e330bec0e502ea (patch)
treeef17237c0625c5265bb2739a7402c9bacd52e981 /Documentation
parent42e0372c0e7ea3617a4ab28c7f83ce66cb0f868d (diff)
parent3eff4c782857d284dc3b11c6db0cab4a263427b7 (diff)
downloadlinux-stericsson-f290cbacb697b7bc8fc67d3988e330bec0e502ea.tar.gz
Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull late SCSI updates from James Bottomley: "This is mostly stuff which missed the initial pull. There's a new driver: qedi, and some ufs, ibmvscsis and ncr5380 updates plus some assorted driver fixes and also a fix for the bug where if a device goes into a blocked state between configuration and sysfs device add (which can be a long time under async probing) it would become permanently blocked" * tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (30 commits) scsi: avoid a permanent stop of the scsi device's request queue scsi: mpt3sas: Recognize and act on iopriority info scsi: qla2xxx: Fix Target mode handling with Multiqueue changes. scsi: qla2xxx: Add Block Multi Queue functionality. scsi: qla2xxx: Add multiple queue pair functionality. scsi: qla2xxx: Utilize pci_alloc_irq_vectors/pci_free_irq_vectors calls. scsi: qla2xxx: Only allow operational MBX to proceed during RESET. scsi: hpsa: remove memory allocate failure message scsi: Update 3ware driver email addresses scsi: zfcp: fix rport unblock race with LUN recovery scsi: zfcp: do not trace pure benign residual HBA responses at default level scsi: zfcp: fix use-after-"free" in FC ingress path after TMF scsi: libcxgbi: return error if interface is not up scsi: cxgb4i: libcxgbi: add missing module_put() scsi: cxgb4i: libcxgbi: cxgb4: add T6 iSCSI completion feature scsi: cxgb4i: libcxgbi: add active open cmd for T6 adapters scsi: cxgb4i: use cxgb4_tp_smt_idx() to get smt_idx scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework. scsi: aacraid: remove wildcard for series 9 controllers scsi: ibmvscsi: add write memory barrier to CRQ processing ...
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/scsi/g_NCR5380.txt46
1 files changed, 23 insertions, 23 deletions
diff --git a/Documentation/scsi/g_NCR5380.txt b/Documentation/scsi/g_NCR5380.txt
index e2c187947e58..37b1967a00a9 100644
--- a/Documentation/scsi/g_NCR5380.txt
+++ b/Documentation/scsi/g_NCR5380.txt
@@ -6,17 +6,15 @@ NCR53c400 extensions (c) 1994,1995,1996 Kevin Lentin
This file documents the NCR53c400 extensions by Kevin Lentin and some
enhancements to the NCR5380 core.
-This driver supports both NCR5380 and NCR53c400 cards in port or memory
-mapped modes. Currently this driver can only support one of those mapping
-modes at a time but it does support both of these chips at the same time.
-The next release of this driver will support port & memory mapped cards at
-the same time. It should be able to handle multiple different cards in the
-same machine.
+This driver supports NCR5380 and NCR53c400 and compatible cards in port or
+memory mapped modes.
-The drivers/scsi/Makefile has an override in it for the most common
-NCR53c400 card, the Trantor T130B in its default configuration:
- Port: 0x350
- IRQ : 5
+Use of an interrupt is recommended, if supported by the board, as this will
+allow targets to disconnect and thereby improve SCSI bus utilization.
+
+If the irq parameter is 254 or is omitted entirely, the driver will probe
+for the correct IRQ line automatically. If the irq parameter is 0 or 255
+then no IRQ will be used.
The NCR53c400 does not support DMA but it does have Pseudo-DMA which is
supported by the driver.
@@ -47,22 +45,24 @@ These old-style parameters can support only one card:
dtc_3181e=1 to set up for a Domex Technology Corp 3181E board
hp_c2502=1 to set up for a Hewlett Packard C2502 board
-e.g.
-OLD: modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_5380=1
-NEW: modprobe g_NCR5380 irq=5 base=0x350 card=0
- for a port mapped NCR5380 board or
-
-OLD: modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
-NEW: modprobe g_NCR5380 irq=255 base=0xc8000 card=1
- for a memory mapped NCR53C400 board with interrupts disabled or
+E.g. Trantor T130B in its default configuration:
+modprobe g_NCR5380 irq=5 base=0x350 card=1
+or alternatively, using the old syntax,
+modprobe g_NCR5380 ncr_irq=5 ncr_addr=0x350 ncr_53c400=1
-NEW: modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4
- for two cards: DTC3181 (in non-PnP mode) at 0x240 with no IRQ
- and HP C2502 at 0x300 with IRQ 7
+E.g. a port mapped NCR5380 board, driver to probe for IRQ:
+modprobe g_NCR5380 base=0x350 card=0
+or alternatively,
+modprobe g_NCR5380 ncr_addr=0x350 ncr_5380=1
-(255 should be specified for no or DMA interrupt, 254 to autoprobe for an
- IRQ line if overridden on the command line.)
+E.g. a memory mapped NCR53C400 board with no IRQ:
+modprobe g_NCR5380 irq=255 base=0xc8000 card=1
+or alternatively,
+modprobe g_NCR5380 ncr_irq=255 ncr_addr=0xc8000 ncr_53c400=1
+E.g. two cards, DTC3181 (in non-PnP mode) at 0x240 with no IRQ
+and HP C2502 at 0x300 with IRQ 7:
+modprobe g_NCR5380 irq=0,7 base=0x240,0x300 card=3,4
Kevin Lentin
K.Lentin@cs.monash.edu.au