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how to use SES driver to send SES commands?

DISCUSSION Newtech Tan 2 participants 5 messages Nov 29, 2013 – Dec 4, 2013 SCSI

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Newtech Tan

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#0 lore raw

Hi friends

I subscribed the mailing list just now. Would you please to give me help?

Who can tell me how to use SES driver(linux/driver/scsi/ses.c) to send SES command(SEND DIAGNOSTIC, RECEIVE DIAGNOSTIC RESULTS) in my linux program?
(I don't want to use sg_ses.)

The following is my system info. /dev/sg2 is my SES device.

[root@tan-sl dev]# lsscsi -g

[0:0:0:0]    cd/dvd  HL-DT-ST DVD+-RW GSA-H53N B104  /dev/sr0   /dev/sg0
[3:0:0:0]    disk    ATA      TOSHIBA MK8061GS ME0A  /dev/sda   /dev/sg1
[4:0:0:0]    enclosu LSI      SAS616x          0502  -         /dev/sg2

[root@tan-sl enclosure]# pwd
/sys/class/enclosure
[root@tan-sl enclosure]# ls -l
total 0
lrwxrwxrwx 1 root root 0 Nov 29 14:51 4:0:0:0 -> ../../devices/pci0000:00/0000:00:1c.0/0000:02:00.0/host4/port-4:0/expan der-4:0/port-4:0:0/end_device-4:0:0/target4:0:0/4:0:0:0/enclosure/4:0:0:0

in linux, I can't find ses device. Under /sys/class/enclosure, folder 4:0:0:0 existed.

I will apprectiate for your help.

#1 lore raw
Quoted 6 lines · Newtech Tan

Hi friends

I subscribed the mailing list just now. Would you please to give me help?

Who can tell me how to use SES driver(linux/driver/scsi/ses.c) to send SES command(SEND DIAGNOSTIC, RECEIVE DIAGNOSTIC RESULTS) in my linux program?
(I don't want to use sg_ses.)

Then look at the source for sg_senddiag (sg_senddiag.c). Your SES device is either /dev/sg2 or /dev/bsg/4:0:0:0

Quoted 17 lines

The following is my system info. /dev/sg2 is my SES device.

[root@tan-sl dev]# lsscsi -g

[0:0:0:0]    cd/dvd  HL-DT-ST DVD+-RW GSA-H53N B104  /dev/sr0   /dev/sg0
[3:0:0:0]    disk    ATA      TOSHIBA MK8061GS ME0A  /dev/sda   /dev/sg1
[4:0:0:0]    enclosu LSI      SAS616x          0502  -         /dev/sg2

[root@tan-sl enclosure]# pwd
/sys/class/enclosure
[root@tan-sl enclosure]# ls -l
total 0
lrwxrwxrwx 1 root root 0 Nov 29 14:51 4:0:0:0 -> ../../devices/pci0000:00/0000:00:1c.0/0000:02:00.0/host4/port-4:0/expan der-4:0/port-4:0:0/end_device-4:0:0/target4:0:0/4:0:0:0/enclosure/4:0:0:0

in linux, I can't find ses device. Under /sys/class/enclosure, folder 4:0:0:0 existed.

I will apprectiate for your help.

author
#2 lore raw

Hi Douglas

Thanks for your kind reply.

sg_senddiag is the sg_ses utility. But i want to use SES driver(linux/driver/scsi/ses.c), do you have any advice?

Quoted 25 lines · Newtech Tan
Quoted 6 lines

Hi friends

I subscribed the mailing list just now. Would you please to give me help?

Who can tell me how to use SES driver(linux/driver/scsi/ses.c) to send SES command(SEND DIAGNOSTIC, RECEIVE DIAGNOSTIC RESULTS) in my linux program?
(I don't want to use sg_ses.)

Then look at the source for sg_senddiag (sg_senddiag.c). Your SES device is either /dev/sg2 or /dev/bsg/4:0:0:0

Quoted 14 lines

The following is my system info. /dev/sg2 is my SES device.

[root@tan-sl dev]# lsscsi -g

[0:0:0:0]    cd/dvd  HL-DT-ST DVD+-RW GSA-H53N B104  /dev/sr0   /dev/sg0
[3:0:0:0]    disk    ATA      TOSHIBA MK8061GS ME0A  /dev/sda   /dev/sg1
[4:0:0:0]    enclosu LSI      SAS616x          0502  -         /dev/sg2

[root@tan-sl enclosure]# pwd
/sys/class/enclosure
[root@tan-sl enclosure]# ls -l
total 0
lrwxrwxrwx 1 root root 0 Nov 29 14:51 4:0:0:0 -> ../../devices/pci0000:00/0000:00:1c.0/0000:02:00.0/host4/port-4:0/expan der-4:0/port-4:0:0/end_device-4:0:0/target4:0:0/4:0:0:0/enclosure/4:0:0:0

Quoted 8 lines
Quoted 3 lines

in linux, I can't find ses device. Under /sys/class/enclosure, folder 4:0:0:0 existed.

I will apprectiate for your help.

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お疲れ様です。譚です。

以上、よろしくお願いいたします。

#3 lore raw

I'm not sure what you expect from the ses driver in the kernel. If it likes an SES device (and it doesn't like some of them) then you will get a small, but useful, set of "knobs" to twiddle and read in sysfs. As far as I can see the ses driver does not create any device nodes (as found in /dev). This means there is no way to extend it by using the SG_IO ioctl to send SCSI commands to the enclosure via the ses driver. And there is no need since the sg and bsg drivers already give you that capability.

Your question is vague, if by "send SES commands" you are referring to SCSI commands then again my advice is to look at what sg_senddiag and sg_ses do. If that is not what you want then write something yourself using the SG_IO ioctl on a bsg or sg device node.

Doug Gilbert

Quoted 35 lines · Newtech Tan

Hi Douglas

Thanks for your kind reply.

sg_senddiag is the sg_ses utility. But i want to use SES driver(linux/driver/scsi/ses.c), do you have any advice?

Quoted 28 lines · Newtech Tan
Quoted 6 lines

Hi friends

I subscribed the mailing list just now. Would you please to give me help?

Who can tell me how to use SES driver(linux/driver/scsi/ses.c) to send SES command(SEND DIAGNOSTIC, RECEIVE DIAGNOSTIC RESULTS) in my linux program?
(I don't want to use sg_ses.)

Then look at the source for sg_senddiag (sg_senddiag.c). Your SES device is either /dev/sg2 or /dev/bsg/4:0:0:0

Quoted 17 lines

The following is my system info. /dev/sg2 is my SES device.

[root@tan-sl dev]# lsscsi -g

[0:0:0:0]    cd/dvd  HL-DT-ST DVD+-RW GSA-H53N B104  /dev/sr0   /dev/sg0
[3:0:0:0]    disk    ATA      TOSHIBA MK8061GS ME0A  /dev/sda   /dev/sg1
[4:0:0:0]    enclosu LSI      SAS616x          0502  -         /dev/sg2

[root@tan-sl enclosure]# pwd
/sys/class/enclosure
[root@tan-sl enclosure]# ls -l
total 0
lrwxrwxrwx 1 root root 0 Nov 29 14:51 4:0:0:0 -> ../../devices/pci0000:00/0000:00:1c.0/0000:02:00.0/host4/port-4:0/expan der-4:0/port-4:0:0/end_device-4:0:0/target4:0:0/4:0:0:0/enclosure/4:0:0:0

in linux, I can't find ses device. Under /sys/class/enclosure, folder 4:0:0:0 existed.

I will apprectiate for your help.

author
#4 lore raw

Hi Douglas

Thanks!

I am using MIPs CPU on embedded system, after cross-compliled sg3_utils package, I will try to use sg_senddiag to send ses command.

Quoted 17 lines

I'm not sure what you expect from the ses driver in the kernel. If it likes an SES device (and it doesn't like some of them) then you will get a small, but useful, set of "knobs" to twiddle and read in sysfs. As far as I can see the ses driver does not create any device nodes (as found in /dev). This means there is no way to extend it by using the SG_IO ioctl to send SCSI commands to the enclosure via the ses driver. And there is no need since the sg and bsg drivers already give you that capability.

Your question is vague, if by "send SES commands" you are referring to SCSI commands then again my advice is to look at what sg_senddiag and sg_ses do. If that is not what you want then write something yourself using the SG_IO ioctl on a bsg or sg device node.

Quoted 39 lines

Doug Gilbert

Quoted 35 lines · Newtech Tan

Hi Douglas

Thanks for your kind reply.

sg_senddiag is the sg_ses utility. But i want to use SES driver(linux/driver/scsi/ses.c), do you have any advice?

Quoted 28 lines · Newtech Tan
Quoted 6 lines

Hi friends

I subscribed the mailing list just now. Would you please to give me help?

Who can tell me how to use SES driver(linux/driver/scsi/ses.c) to send SES command(SEND DIAGNOSTIC, RECEIVE DIAGNOSTIC RESULTS) in my linux program?
(I don't want to use sg_ses.)

Then look at the source for sg_senddiag (sg_senddiag.c). Your SES device is either /dev/sg2 or /dev/bsg/4:0:0:0

Quoted 17 lines

The following is my system info. /dev/sg2 is my SES device.

[root@tan-sl dev]# lsscsi -g

[0:0:0:0]    cd/dvd  HL-DT-ST DVD+-RW GSA-H53N B104  /dev/sr0   /dev/sg0
[3:0:0:0]    disk    ATA      TOSHIBA MK8061GS ME0A  /dev/sda   /dev/sg1
[4:0:0:0]    enclosu LSI      SAS616x          0502  -         /dev/sg2

[root@tan-sl enclosure]# pwd
/sys/class/enclosure
[root@tan-sl enclosure]# ls -l
total 0
lrwxrwxrwx 1 root root 0 Nov 29 14:51 4:0:0:0 -> ../../devices/pci0000:00/0000:00:1c.0/0000:02:00.0/host4/port-4:0/expan der-4:0/port-4:0:0/end_device-4:0:0/target4:0:0/4:0:0:0/enclosure/4:0:0:0

in linux, I can't find ses device. Under /sys/class/enclosure, folder 4:0:0:0 existed.

I will apprectiate for your help.

お疲れ様です。譚です。

以上、よろしくお願いいたします。