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This patch allows the Adaptec firmware to pass on its values for Packetize and
QAS. To do this, the settings max_iu and max_qas have been introduced into
the SPI transport class and populated from the adaptec NVram tables. Domain
validation in the SPI transport class will respect the max settings when
configuring to the highest possible speed for testing.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Signed-off-by: Eric Moore <Eric.Moore@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Key more of the domain validation settings off the inquiry data from
the disk (in particular, don't try IU or DT unless the disk claims to
support them.
Also add a new dv_in_progress flag to prevent recursive DV.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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Introduce new helpers:
- spi_populate_width_msg()
- spi_populate_sync_msg()
- spi_populate_ppr_msg()
and use them in drivers which already enable the SPI transport.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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On alpha:
In file included from drivers/scsi/sym53c8xx_2/sym_glue.h:59,
from drivers/scsi/sym53c8xx_2/sym_fw.c:40:
include/scsi/scsi_transport_spi.h:57: error: field `dv_mutex' has incomplete type
Cc: James Bottomley <James.Bottomley@steeleye.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Convert the SCSI transport class code to use a mutex rather than a
semaphore.
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Rename scsi_print_msg to spi_print_msg and move its prototype from
scsi_dbg.h to scsi_transport_spi.h
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Add forward declarations to allow scsi_transport_spi.h to be compiled by
itself.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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This patch is necessary if we begin exposing underlying physical disks
(which can attach to the SPI transport class) of the hardware RAID
cards, since we don't want any SPI parameters binding to the RAID
devices.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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This parameter is important only to people who take the time to tune the
margin control settings, otherwise it's completely irrelevant. However,
just in case anyone should want to do this, it's appropriate to include
the parameter.
I don't do anything with it in DV by design, so the parameter will come
up as off by default, so if anyone actually wants to play with the
margin control settings they'll have to enable it under the
spi_transport class first.
I also updated the transfer settings display to report all of the PPR
settings instead of only DT, IU and QAS
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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There's a basic need not to have parameters go under or over certain
values when doing domain validation. The basic ones are
max_offset, max_width and min_period
This patch makes the transport class take and enforce these three
limits. Currently they can be set by the user, although they could
obviously be read from the HBA's on-board NVRAM area during
slave_configure (if it has one).
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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