Nuke unused struct scsi_link members of adapter softc's where the
driver successfully compiles on one or more of amd64, i386, hppa.

*_minphys() functions that cap i/o sizes at a value larger than the
value minphys() uses (MAXPHYS) are pointless since minphys() is always
called after the *_minphys() function.

MAXPHYS (64 * 1024)

*_minphys() functions that cap i/o sizes at a value larger than the
value minphys() uses (MAXPHYS) are pointless since minphys() is always
called after the *_minphys() function.

MAXPHYS (64 * 1024) == 16 * 4096. 4096 is the smallest PAGE_SIZE we
have. So a *_minphys() function that caps the i/o size at N *
PAGE_SIZE where N is > 16 is just wasting cycles.

Nuke adv_minphys (40 * PAGE_SIZE), adw_minphys (254 * PAGE_SIZE),
ahc_minphys (128 * PAGE_SIZE), ahd_minphys (128 * PAGE_SIZE),
ami_minphys (26 * PAGE_SIZE), cac_minphys (65535 (!!!) * 512),
iha_minphsy (32 * PAGE_SIZE), trm_minphys (31 * PAGE_SIZE),
twe_minphys (62 * PAGE_SIZE). uha_minphys (32 * PAGE_SIZE),

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Prototypes should not name the parameters.

Shuffle some names around to make reading the code less headache
inducing. Rename scsi_adapter member 'scsi_minphys' to 'dev_minphys'
to reflect what it is supposed to do. Use consistent naming conve

Shuffle some names around to make reading the code less headache
inducing. Rename scsi_adapter member 'scsi_minphys' to 'dev_minphys'
to reflect what it is supposed to do. Use consistent naming convention
(<dev>_minphys) for the actual device functions.

No functional change.

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move twe over to iopools so we can get rid of another NO_CCB user. this
also cuts the aen drain over to using an iohandler so it can be made
reliable.

this compiles, but i havent got hardware to tes

move twe over to iopools so we can get rid of another NO_CCB user. this
also cuts the aen drain over to using an iohandler so it can be made
reliable.

this compiles, but i havent got hardware to test with. its going in as a
way to force testing. if there's a problem with the code then let me know
or back it out.

"man up" k2k11

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Extend the scsi_adapter minphys() callback to take a struct scsi_link *
as additional argument. This will allow intermediate layers between
scsi devices such as sd and scsi host adapters to take appr

Extend the scsi_adapter minphys() callback to take a struct scsi_link *
as additional argument. This will allow intermediate layers between
scsi devices such as sd and scsi host adapters to take appropriate
action if necessary.

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the softc sc_lock lockmgr lock is unused, so remove it.

ok krw@, dlg@

Don't fake MODE SENSE page 4 info inside raid drivers, just let sd
fake a geometry. Page 4 info does not get used for size information.
Eliminate now unused union scsi_disk_pages.

ok marco@ mickey@

Don't fake MODE SENSE page 4 info inside raid drivers, just let sd
fake a geometry. Page 4 info does not get used for size information.
Eliminate now unused union scsi_disk_pages.

ok marco@ mickey@ pre-lock.

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kill the caluses three and four on some of my code

deal w/ the dma in a special thread to follow the busdma semantics. this fixes panics on unaligned physio; w/ help and testing from daniel@lucq.org

First round of __P removal in sys

dmamem_unmap the memory before dmamem_freeig it.
only affects unaligned transfers (such as disklabel, fsck and dump).
we used to get away w/ this due to older pmap, uvm or both.
be more precise w/ do

dmamem_unmap the memory before dmamem_freeig it.
only affects unaligned transfers (such as disklabel, fsck and dump).
we used to get away w/ this due to older pmap, uvm or both.
be more precise w/ double-buffer on command failure as well.
once at it, allow more than 1 segment for double-buffer to be allocated.
also fix a couple of endianesses and command timeouts.

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proper dmaable memory allocations; oops

3ware escalade ide raid controllers