[SCSI] zfcp: Update FCP protocol related code
Use common data structures for FCP CMND, FCP RSP and related
definitions and remove zfcp private definitions. Split the FCP CMND
setup and FCP RSP evaluation code in seperate functions. Use inline
functions to not negatively impact the I/O path.
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>
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index fe818cd2..21e5316e 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -870,8 +870,9 @@
struct zfcp_dbf_scsi_record *rec = &dbf->scsi_buf;
struct zfcp_dbf_dump *dump = (struct zfcp_dbf_dump *)rec;
unsigned long flags;
- struct fcp_rsp_iu *fcp_rsp;
- char *fcp_rsp_info = NULL, *fcp_sns_info = NULL;
+ struct fcp_resp_with_ext *fcp_rsp;
+ struct fcp_resp_rsp_info *fcp_rsp_info = NULL;
+ char *fcp_sns_info = NULL;
int offset = 0, buflen = 0;
spin_lock_irqsave(&dbf->scsi_lock, flags);
@@ -895,20 +896,22 @@
rec->scsi_allowed = scsi_cmnd->allowed;
}
if (fsf_req != NULL) {
- fcp_rsp = (struct fcp_rsp_iu *)
- &(fsf_req->qtcb->bottom.io.fcp_rsp);
- fcp_rsp_info = (unsigned char *) &fcp_rsp[1];
- fcp_sns_info =
- zfcp_get_fcp_sns_info_ptr(fcp_rsp);
+ fcp_rsp = (struct fcp_resp_with_ext *)
+ &(fsf_req->qtcb->bottom.io.fcp_rsp);
+ fcp_rsp_info = (struct fcp_resp_rsp_info *)
+ &fcp_rsp[1];
+ fcp_sns_info = (char *) &fcp_rsp[1];
+ if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
+ fcp_sns_info += fcp_rsp->ext.fr_sns_len;
- rec->rsp_validity = fcp_rsp->validity.value;
- rec->rsp_scsi_status = fcp_rsp->scsi_status;
- rec->rsp_resid = fcp_rsp->fcp_resid;
- if (fcp_rsp->validity.bits.fcp_rsp_len_valid)
- rec->rsp_code = *(fcp_rsp_info + 3);
- if (fcp_rsp->validity.bits.fcp_sns_len_valid) {
- buflen = min((int)fcp_rsp->fcp_sns_len,
- ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
+ rec->rsp_validity = fcp_rsp->resp.fr_flags;
+ rec->rsp_scsi_status = fcp_rsp->resp.fr_status;
+ rec->rsp_resid = fcp_rsp->ext.fr_resid;
+ if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL)
+ rec->rsp_code = fcp_rsp_info->rsp_code;
+ if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
+ buflen = min(fcp_rsp->ext.fr_sns_len,
+ (u32)ZFCP_DBF_SCSI_MAX_FCP_SNS_INFO);
rec->sns_info_len = buflen;
memcpy(rec->sns_info, fcp_sns_info,
min(buflen,