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author | Christof Schmitt <christof.schmitt@de.ibm.com> | 2009-11-24 16:54:13 +0100 |
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committer | James Bottomley <James.Bottomley@suse.de> | 2009-12-04 12:02:15 -0600 |
commit | 7c7dc196814b9e1d5cc254dc579a5fa78ae524f7 (patch) | |
tree | efe4800a456fa97e1f10876840fbde0983264b18 /drivers/s390/scsi/zfcp_fsf.h | |
parent | 800c0cad962dcf630cabf3efdc5983619e73d4c9 (diff) | |
download | op-kernel-dev-7c7dc196814b9e1d5cc254dc579a5fa78ae524f7.zip op-kernel-dev-7c7dc196814b9e1d5cc254dc579a5fa78ae524f7.tar.gz |
[SCSI] zfcp: Simplify handling of ct and els requests
Remove some redundancies in FC related code and trace:
- drop redundant data from SAN trace (local s_id that only changes
during link down, ls_code that is already part of payload, d_id in
ct response trace that is always the same as in ct request trace)
- use one common fsf struct to hold zfcp data for ct and els requests
- leverage common fsf struct for FC passthrough job data, allocate it
with dd_bsg_data for passthrough requests and unify common code for
ct and els passthrough request
- simplify callback handling in zfcp_fc
Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_fsf.h')
-rw-r--r-- | drivers/s390/scsi/zfcp_fsf.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index 206b7ea..b3de682 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -437,4 +437,22 @@ struct zfcp_blk_drv_data { u64 fabric_lat; } __attribute__ ((packed)); +/** + * struct zfcp_fsf_ct_els - zfcp data for ct or els request + * @req: scatter-gather list for request + * @resp: scatter-gather list for response + * @handler: handler function (called for response to the request) + * @handler_data: data passed to handler function + * @port: Optional pointer to port for zfcp internal ELS (only test link ADISC) + * @status: used to pass error status to calling function + */ +struct zfcp_fsf_ct_els { + struct scatterlist *req; + struct scatterlist *resp; + void (*handler)(void *); + void *handler_data; + struct zfcp_port *port; + int status; +}; + #endif /* FSF_H */ |