s/faild/failed/ in comments and messages.

make sure the alignment of ciss_cmd matches KASSERT() in ciss_cmd()

revert the conversion to STAILQ, it broke execution of commands

remove ccb_sc to save memory, no need to store pointer to sc in ccb

use STAILQ for ccb lists to save some memory, doubly-linked list is not needed

add support for PERFORMANT mode, and allow MSI/MSI-X (only) for adapters which
support it

code adapted from FreeBSD, but with fix for setting the performant bit
and pull count on command submittion as seen in hpsa Linux driver

tested with INTx and MSI-X on HP Smart Array 11

thanks to Andreas Gustafsson for initial testing, and providing
access to test machine

rename intr bits

branches: 1.4.6;
- add 64 bit fifo support
- handle fibrilation better

branches: 1.3.28; 1.3.38; 1.3.44;
kern/39757 from mishka@:
Bump CISS_MAX_CDB from 12 to 16 bytes. For volumes larger than 2TB,
the scsipi layer will have to use 16 bytes SCSI commands, which would be
rejected by ciss. The cdb buffer already 16 bytes long, and a look at the
FreeBSD driver shows there's no reasons to limit SCSI commands to 12 bytes.

branches: 1.2.4;
Add bio(4) support, heavily from OpenBSD. The driver doesn't know which
physical drives belong to which logical drive, so all the physical drives
will show up for logical drive 0, and also appear for logical drives that
are rebuilding so that the rebuild state will show the physical drive
being rebuilt. Locking for the scratch buffer is currently missing - system
quickly quits responding when I try to lock the buffer with mutex_{enter,exit}().

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; 1.1.12; 1.1.18; 1.1.24; 1.1.74; 1.1.76; 1.1.78; 1.1.80;
Add a driver, ciss(4), for the HP/Compaq drivers using the newer
"Command Interface to SCSI-3 Support" command interface. Driver
ported from OpenBSD by Tonnerre Lombard -- thanks!

make sure the alignment of ciss_cmd matches KASSERT() in ciss_cmd()

revert the conversion to STAILQ, it broke execution of commands

remove ccb_sc to save memory, no need to store pointer to sc in ccb

use STAILQ for ccb lists to save some memory, doubly-linked list is not needed

add support for PERFORMANT mode, and allow MSI/MSI-X (only) for adapters which
support it

code adapted from FreeBSD, but with fix for setting the performant bit
and pull count on command submittion as seen in hpsa Linux driver

tested with INTx and MSI-X on HP Smart Array 11

thanks to Andreas Gustafsson for initial testing, and providing
access to test machine

rename intr bits

branches: 1.4.6;
- add 64 bit fifo support
- handle fibrilation better

branches: 1.3.28; 1.3.38; 1.3.44;
kern/39757 from mishka@:
Bump CISS_MAX_CDB from 12 to 16 bytes. For volumes larger than 2TB,
the scsipi layer will have to use 16 bytes SCSI commands, which would be
rejected by ciss. The cdb buffer already 16 bytes long, and a look at the
FreeBSD driver shows there's no reasons to limit SCSI commands to 12 bytes.

branches: 1.2.4;
Add bio(4) support, heavily from OpenBSD. The driver doesn't know which
physical drives belong to which logical drive, so all the physical drives
will show up for logical drive 0, and also appear for logical drives that
are rebuilding so that the rebuild state will show the physical drive
being rebuilt. Locking for the scratch buffer is currently missing - system
quickly quits responding when I try to lock the buffer with mutex_{enter,exit}().

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; 1.1.12; 1.1.18; 1.1.24; 1.1.74; 1.1.76; 1.1.78; 1.1.80;
Add a driver, ciss(4), for the HP/Compaq drivers using the newer
"Command Interface to SCSI-3 Support" command interface. Driver
ported from OpenBSD by Tonnerre Lombard -- thanks!

remove ccb_sc to save memory, no need to store pointer to sc in ccb

use STAILQ for ccb lists to save some memory, doubly-linked list is not needed

add support for PERFORMANT mode, and allow MSI/MSI-X (only) for adapters which
support it

code adapted from FreeBSD, but with fix for setting the performant bit
and pull count on command submittion as seen in hpsa Linux driver

tested with INTx and MSI-X on HP Smart Array 11

thanks to Andreas Gustafsson for initial testing, and providing
access to test machine

rename intr bits

branches: 1.4.6;
- add 64 bit fifo support
- handle fibrilation better

branches: 1.3.28; 1.3.38; 1.3.44;
kern/39757 from mishka@:
Bump CISS_MAX_CDB from 12 to 16 bytes. For volumes larger than 2TB,
the scsipi layer will have to use 16 bytes SCSI commands, which would be
rejected by ciss. The cdb buffer already 16 bytes long, and a look at the
FreeBSD driver shows there's no reasons to limit SCSI commands to 12 bytes.

branches: 1.2.4;
Add bio(4) support, heavily from OpenBSD. The driver doesn't know which
physical drives belong to which logical drive, so all the physical drives
will show up for logical drive 0, and also appear for logical drives that
are rebuilding so that the rebuild state will show the physical drive
being rebuilt. Locking for the scratch buffer is currently missing - system
quickly quits responding when I try to lock the buffer with mutex_{enter,exit}().

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; 1.1.12; 1.1.18; 1.1.24; 1.1.74; 1.1.76; 1.1.78; 1.1.80;
Add a driver, ciss(4), for the HP/Compaq drivers using the newer
"Command Interface to SCSI-3 Support" command interface. Driver
ported from OpenBSD by Tonnerre Lombard -- thanks!

rename intr bits

branches: 1.4.6;
- add 64 bit fifo support
- handle fibrilation better

branches: 1.3.28; 1.3.38; 1.3.44;
kern/39757 from mishka@:
Bump CISS_MAX_CDB from 12 to 16 bytes. For volumes larger than 2TB,
the scsipi layer will have to use 16 bytes SCSI commands, which would be
rejected by ciss. The cdb buffer already 16 bytes long, and a look at the
FreeBSD driver shows there's no reasons to limit SCSI commands to 12 bytes.

branches: 1.2.4;
Add bio(4) support, heavily from OpenBSD. The driver doesn't know which
physical drives belong to which logical drive, so all the physical drives
will show up for logical drive 0, and also appear for logical drives that
are rebuilding so that the rebuild state will show the physical drive
being rebuilt. Locking for the scratch buffer is currently missing - system
quickly quits responding when I try to lock the buffer with mutex_{enter,exit}().

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8; 1.1.10; 1.1.12; 1.1.18; 1.1.24; 1.1.74; 1.1.76; 1.1.78; 1.1.80;
Add a driver, ciss(4), for the HP/Compaq drivers using the newer
"Command Interface to SCSI-3 Support" command interface. Driver
ported from OpenBSD by Tonnerre Lombard -- thanks!