diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/scsi/zfcp_dbf.h | 30 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.h | 3 |
2 files changed, 30 insertions, 3 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h index 2d06b5d2c05b..db186d44cfaf 100644 --- a/drivers/s390/scsi/zfcp_dbf.h +++ b/drivers/s390/scsi/zfcp_dbf.h @@ -2,7 +2,7 @@ * zfcp device driver * debug feature declarations * - * Copyright IBM Corp. 2008, 2015 + * Copyright IBM Corp. 2008, 2016 */ #ifndef ZFCP_DBF_H @@ -283,6 +283,30 @@ struct zfcp_dbf { struct zfcp_dbf_scsi scsi_buf; }; +/** + * zfcp_dbf_hba_fsf_resp_suppress - true if we should not trace by default + * @req: request that has been completed + * + * Returns true if FCP response with only benign residual under count. + */ +static inline +bool zfcp_dbf_hba_fsf_resp_suppress(struct zfcp_fsf_req *req) +{ + struct fsf_qtcb *qtcb = req->qtcb; + u32 fsf_stat = qtcb->header.fsf_status; + struct fcp_resp *fcp_rsp; + u8 rsp_flags, fr_status; + + if (qtcb->prefix.qtcb_type != FSF_IO_COMMAND) + return false; /* not an FCP response */ + fcp_rsp = (struct fcp_resp *)&qtcb->bottom.io.fcp_rsp; + rsp_flags = fcp_rsp->fr_flags; + fr_status = fcp_rsp->fr_status; + return (fsf_stat == FSF_FCP_RSP_AVAILABLE) && + (rsp_flags == FCP_RESID_UNDER) && + (fr_status == SAM_STAT_GOOD); +} + static inline void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req) { @@ -304,7 +328,9 @@ void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req) zfcp_dbf_hba_fsf_resp("fs_perr", 1, req); } else if (qtcb->header.fsf_status != FSF_GOOD) { - zfcp_dbf_hba_fsf_resp("fs_ferr", 1, req); + zfcp_dbf_hba_fsf_resp("fs_ferr", + zfcp_dbf_hba_fsf_resp_suppress(req) + ? 5 : 1, req); } else if ((req->fsf_command == FSF_QTCB_OPEN_PORT_WITH_DID) || (req->fsf_command == FSF_QTCB_OPEN_LUN)) { diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index be1c04b334c5..ea3c76ac0de1 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -3,7 +3,7 @@ * * Interface to the FSF support functions. * - * Copyright IBM Corp. 2002, 2015 + * Copyright IBM Corp. 2002, 2016 */ #ifndef FSF_H @@ -78,6 +78,7 @@ #define FSF_APP_TAG_CHECK_FAILURE 0x00000082 #define FSF_REF_TAG_CHECK_FAILURE 0x00000083 #define FSF_ADAPTER_STATUS_AVAILABLE 0x000000AD +#define FSF_FCP_RSP_AVAILABLE 0x000000AF #define FSF_UNKNOWN_COMMAND 0x000000E2 #define FSF_UNKNOWN_OP_SUBTYPE 0x000000E3 #define FSF_INVALID_COMMAND_OPTION 0x000000E5 |