In your message on you write:
> By point-to-point you don't mean a direct attach do you? In this
> case the BIOS of the HBA would have had its connectivity type set to,
> parhaps, LOOP ONLY. For the switch connection to work check that the
> connectivity type in the HBA BIOS is set to POINT TO POINT ONLY. Also,
> check, in Red Hat, /var/log/messages for what connectivity type the HBA has
> detected with the switch it should indicate an F Port. The qla2x00 driver
> will also tell you the targets it has detected on the fabric. If it's not
> detecting any targets check to insure that the target and the HBA reside in
> the same zone on the fabric.
> After the driver has loaded you'll find entries in procfs,
> /proc/scsi/qla2x00/<HBA target>. You can cat() these files to see what LUNs
> were detected by the driver. You can also gleen this information from
> /var/log/messages where you'll also be able to determine which /dev/sd
> device nodes are attached to which LUNs and the size that LUNs have been
> detected as.
> The same driver, qla2x00 is used for both the QLA2100 and QLA2200
> HBA's. If you are using the qlogicfc or isp drivers, I don't believe either
> support the QLA2200FC HBA.
This is incorrect. The linux 2.4 kernel qlogicfc driver does indeed support
the QLA2200FC HBA.
>
> Wayne
> Sr Attach Engineer
> EMC Corp
>
> email: [EMAIL PROTECTED]
>
> "One man can make a difference, and every man should try." - JFK
>
>
> -----Original Message-----
> From: Ana Yuseepi [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, June 21, 2001 5:47 AM
> To: [EMAIL PROTECTED]
> Subject: ioctl SCC3
>
>
> Good day to all,
>
> am trying to send an SCC-3 command to a target device. This command
> also transfer data to the target device.
>
> I'd like to ask how is exactly the placement of the data? am using ioctl in
> my program,
>
> result = ioctl(fd, 1, buffer);
>
> where:
> fd - is the file descriptor
> data in buffer is:
> byte 3-0 - size of data to be transferred to device + size of cdblen + 8
> byte 7-4 - (defaults to 0. I assume that this is length of buffer
> to receive data FROM the device)
> byte 19-8 - cdb(12 bytes)
> byte n - 20 - data to be transferred to the device.
>
> my program works fine with qla2100 and the device connected point-to-point.
>
> but it doesn't work with qla2200 and switches.
>
> any idea on what is wrong?
>
> i appreciate any help...
>
Here is some code I use to do this sort of stuff (Sorry about using C++)
int issueScsiCmd(int fd,
unsigned char *cmd,
size_t cmdLen,
unsigned char *outData,
size_t outDataLen,
unsigned char *inData,
size_t inDataLen,
unsigned char *scsiSenseKey)
{
// fd is assumed to be open before making this call.
ScsiData sdata;
memset(&sdata, 0, sizeof(sdata));
*scsiSenseKey = NO_SENSE;
sdata.outLen = outDataLen;
sdata.inLen = inDataLen;
memcpy(&sdata.cmd, cmd, cmdLen);
if (outData != (unsigned char*)NULL)
memcpy(&sdata.cmd[cmdLen], outData, outDataLen);
status = ioctl(fd, SCSI_IOCTL_SEND_COMMAND, &sdata);
if (status < 0)
{
// OS error.
fprintf(stderr, "SCSI cmd %02x on failed - %s",
cmd[0],
sys_errlist[errno]));
return RETURN_ERROR_SYSTEM;
}
if (status > 0)
{
// SCSI or driver error.
unsigned char scsiStatus = (status & 0x000000ff) > 1;
// Fill outData with request sense info.
if (scsiStatus == CHECK_CONDITION)
{
*scsiSenseKey = sdata.cmd[2] & 0x0f;
memcpy(inData, &sdata.cmd[0], SCSI_SENSE_BUFFER_LEN);
return RETURN_ERROR_SCSI;
}
else
return RETURN_ERROR_SYSTEM;
// Everything OK, copy data if any.
if (inData != (unsigned char*)NULL)
memcpy(inData, &sdata.cmd[0], inDataLen);
return RETURN_OK;
}
I then call this using something like:
// SCSI data structures.
unsigned char scsiCmd[MAX_SCSI_CMD_LEN];
unsigned char inScsiData[MAX_SCSI_DATA_LEN];
unsigned char scsiSenseKey;
//
// INQUIRY (standard).
memset(scsiCmd, 0, MAX_SCSI_CMD_LEN);
memset(inScsiData, 0, MAX_SCSI_DATA_LEN);
scsiCmd[0] = INQUIRY;
scsiCmd[4] = INQUIRY_CMD_IN_DATA_LEN; // Allocation length.
int ret;
ret = issueScsiCmd(fd,
scsiCmd,
INQUIRY_CMD_LEN,
(unsigned char *)NULL,
0,
inScsiData,
INQUIRY_CMD_IN_DATA_LEN,
&scsiSenseKey);
Hope this helps.
Andrew Patterson
> -Ana
>
>
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