Re: Warning - running *really* short on DMA buffers while doing file transfers

[Patrick Mansfield]

On Fri, Sep 27, 2002 at 04:08:22PM -0600, Justin T. Gibbs wrote:
> >> http://people.FreeBSD.org/~gibbs/linux/linux-2.5-aic79xxx.tar.gz
> >> 
> >> --
> >> Justin
> > 
> > Any 2.5 patch for the above? Or aic7xxx/Config.in and
> > aic7xxx/Makefile for 2.5?
> 
> Try it now.
> 

Great! It boots up fine on my IBM netfinity system with 2.5.37.

I see:

[ boot up stuff deleted ] 

scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.10
        <Adaptec aic7896/97 Ultra2 SCSI adapter>
        aic7896/97: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs

scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.10
        <Adaptec aic7896/97 Ultra2 SCSI adapter>
        aic7896/97: Ultra2 Wide Channel B, SCSI Id=7, 32/253 SCBs

I turned on the debug flags, there were a bunch of odd messages
in there, but otherwise it seems to be working fine. My .config
has the following AIC config options:

CONFIG_SCSI_AIC7XXX=y
CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
CONFIG_AIC7XXX_ALLOW_MEMIO=y
# CONFIG_AIC7XXX_PROBE_EISA_VL is not set
# CONFIG_AIC7XXX_BUILD_FIRMWARE is not set
CONFIG_AIC7XXX_DEBUG_ENABLE=y
CONFIG_AIC7XXX_DEBUG_MASK=0
CONFIG_AIC7XXX_REG_PRETTY_PRINT=y
# CONFIG_SCSI_AIC79XX is not set

Weird boot time messages:

INITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUT<5>  Vendor: IBM-PSG   Model: ST318203LC    !#  Rev: B222
  Type:   Direct-Access                      ANSI SCSI revision: 02
INITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUT(scsi0:A:0): 80.000MB/s transfers (40.000MHz, offset 15, 16bit)
INITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUT<5>  Vendor: IBM-PSG   Model: ST318203LC    !#  Rev: B222
  Type:   Direct-Access                      ANSI SCSI revision: 02
INITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUT(scsi0:A:1): 80.000MB/s transfers (40.000MHz, offset 15, 16bit)
  Vendor: IBM       Model: LN V1.2Rack       Rev: B004
  Type:   Processor                          ANSI SCSI revision: 02
scsi0:A:0:0: Tagged Queuing enabled.  Depth 253
scsi0:A:1:0: Tagged Queuing enabled.  Depth 253
st: Version 20020822, fixed bufsize 32768, wrt 30720, s/g segs 256
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
Attached scsi disk sdb at scsi0, channel 0, id 1, lun 0
INITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUT<5>SCSI device sda: 35548320 512-byte hdwr sectors (18201 MB)
 sda: sda1 sda2
INITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUTINITIATOR_MSG_OUT<5>SCSI device sdb: 35548320 512-byte hdwr sectors (18201 MB)
 sdb: sdb1 sdb2
Attached scsi generic sg2 at scsi0, channel 0, id 15, lun 0,  type 3
mice: PS/2 mouse device common for all mice
input: PS/2 Generic Mouse on isa0060/serio1
serio: i8042 AUX port at 0x60,0x64 irq 12
input: AT Set 2 keyboard on isa0060/serio0
serio: i8042 KBD port at 0x60,0x64 irq 1
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 32Kbytes
TCP: Hash tables configured (established 16384 bind 21845)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting.  Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 96k freed
INIT: version 2.78 booting

[ more boot up stuff ]

-- Patrick Mansfield