Hi, all
I face a problem about relaying a scsi_pkt.
The following is a simply decribe.
When receiving a scsi_pkt (called it old scsi_pkt) from targt driver, my module
will init a new scsi_pkt by xx_scsi_pkt method and the params are same as old
scsi_pkt created.
When my new scsi_pkt is done OK, it will copy the result to the old scsi_pkt.
step 1, (ssd) scsi_pkt -------->(my module) init a new
scsi_pkt -------->(HBA) send it out
step 2, (ssd) scsi_pkt <--------(my module) copy result to
old scsi_pkt <--------(HBA) recive response
In step 1, I copy pkt_private from old scsi_pkt to new scsi_pkt and
fill other members of scsi_pkt
In setp 2, I copy pkt_private from new scsi_pkt to old scsi_pkt
My problem is the new scsi_pkt is done ok(I know from my log) ,but the old
scsi_pkt is not OK(because some command is not ok ,such as format). I think i
ignore some detail.My foucs is on the pkt_private , is right?
I hope your idea .
Thanks.
struct scsi_pkt {
opaque_t pkt_ha_private; /* private data for host adapter */
struct scsi_address pkt_address; /* destination packet is for */
opaque_t pkt_private; /* private data for target driver */
void (*pkt_comp)(struct scsi_pkt *); /* completion routine */
uint_t pkt_flags; /* flags */
int pkt_time; /* time allotted to complete command */
uchar_t *pkt_scbp; /* pointer to status block */
uchar_t *pkt_cdbp; /* pointer to command block */
ssize_t pkt_resid; /* data bytes not transferred */
uint_t pkt_state; /* state of command */
uint_t pkt_statistics; /* statistics */
uchar_t pkt_reason; /* reason completion called */
uint_t pkt_cdblen;
uint_t pkt_tgtlen;
uint_t pkt_scblen;
ddi_dma_handle_t pkt_handle;
uint_t pkt_numcookies;
off_t pkt_dma_offset;
size_t pkt_dma_len;
uint_t pkt_dma_flags;
ddi_dma_cookie_t *pkt_cookies;
};
This message posted from opensolaris.org
_______________________________________________
storage-discuss mailing list
[email protected]
http://mail.opensolaris.org/mailman/listinfo/storage-discuss
