[SCSI] zfcp: Redesign of the debug tracing for SAN records.
This patch is the continuation to redesign the zfcp tracing to a more straight-forward and easy to extend scheme. This patch deals with all trace records of the zfcp SAN area. Signed-off-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>
This commit is contained in:
parent
ae0904f60f
commit
2c55b750a8
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@ -527,183 +527,79 @@ void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
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spin_unlock_irqrestore(&dbf->rec_lock, flags);
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spin_unlock_irqrestore(&dbf->rec_lock, flags);
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}
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}
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/**
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static inline
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* zfcp_dbf_san_ct_request - trace event for issued CT request
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void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, void *data, u8 id, u16 len,
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* @fsf_req: request containing issued CT data
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u64 req_id, u32 d_id)
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* @d_id: destination id where ct request is sent to
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*/
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void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *fsf_req, u32 d_id)
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{
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{
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struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
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struct zfcp_dbf_san *rec = &dbf->san_buf;
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struct zfcp_adapter *adapter = fsf_req->adapter;
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u16 rec_len;
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struct zfcp_dbf *dbf = adapter->dbf;
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struct fc_ct_hdr *hdr = sg_virt(ct->req);
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struct zfcp_dbf_san_record *r = &dbf->san_buf;
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struct zfcp_dbf_san_record_ct_request *oct = &r->u.ct_req;
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int level = 3;
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unsigned long flags;
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spin_lock_irqsave(&dbf->san_lock, flags);
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memset(r, 0, sizeof(*r));
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strncpy(r->tag, "octc", ZFCP_DBF_TAG_SIZE);
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r->fsf_reqid = fsf_req->req_id;
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r->fsf_seqno = fsf_req->seq_no;
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oct->d_id = d_id;
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oct->cmd_req_code = hdr->ct_cmd;
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oct->revision = hdr->ct_rev;
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oct->gs_type = hdr->ct_fs_type;
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oct->gs_subtype = hdr->ct_fs_subtype;
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oct->options = hdr->ct_options;
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oct->max_res_size = hdr->ct_mr_size;
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oct->len = min((int)ct->req->length - (int)sizeof(struct fc_ct_hdr),
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ZFCP_DBF_SAN_MAX_PAYLOAD);
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debug_event(dbf->san, level, r, sizeof(*r));
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zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
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(void *)hdr + sizeof(struct fc_ct_hdr), oct->len);
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spin_unlock_irqrestore(&dbf->san_lock, flags);
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}
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/**
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* zfcp_dbf_san_ct_response - trace event for completion of CT request
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* @fsf_req: request containing CT response
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*/
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void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *fsf_req)
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{
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struct zfcp_fsf_ct_els *ct = (struct zfcp_fsf_ct_els *)fsf_req->data;
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struct zfcp_adapter *adapter = fsf_req->adapter;
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struct fc_ct_hdr *hdr = sg_virt(ct->resp);
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struct zfcp_dbf *dbf = adapter->dbf;
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struct zfcp_dbf_san_record *r = &dbf->san_buf;
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struct zfcp_dbf_san_record_ct_response *rct = &r->u.ct_resp;
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int level = 3;
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unsigned long flags;
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spin_lock_irqsave(&dbf->san_lock, flags);
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memset(r, 0, sizeof(*r));
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strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
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r->fsf_reqid = fsf_req->req_id;
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r->fsf_seqno = fsf_req->seq_no;
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rct->cmd_rsp_code = hdr->ct_cmd;
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rct->revision = hdr->ct_rev;
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rct->reason_code = hdr->ct_reason;
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rct->expl = hdr->ct_explan;
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rct->vendor_unique = hdr->ct_vendor;
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rct->max_res_size = hdr->ct_mr_size;
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rct->len = min((int)ct->resp->length - (int)sizeof(struct fc_ct_hdr),
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ZFCP_DBF_SAN_MAX_PAYLOAD);
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debug_event(dbf->san, level, r, sizeof(*r));
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zfcp_dbf_hexdump(dbf->san, r, sizeof(*r), level,
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(void *)hdr + sizeof(struct fc_ct_hdr), rct->len);
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spin_unlock_irqrestore(&dbf->san_lock, flags);
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}
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static void zfcp_dbf_san_els(const char *tag, int level,
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struct zfcp_fsf_req *fsf_req, u32 d_id,
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void *buffer, int buflen)
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{
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struct zfcp_adapter *adapter = fsf_req->adapter;
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struct zfcp_dbf *dbf = adapter->dbf;
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struct zfcp_dbf_san_record *rec = &dbf->san_buf;
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unsigned long flags;
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unsigned long flags;
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spin_lock_irqsave(&dbf->san_lock, flags);
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spin_lock_irqsave(&dbf->san_lock, flags);
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memset(rec, 0, sizeof(*rec));
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memset(rec, 0, sizeof(*rec));
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strncpy(rec->tag, tag, ZFCP_DBF_TAG_SIZE);
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rec->fsf_reqid = fsf_req->req_id;
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rec->id = id;
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rec->fsf_seqno = fsf_req->seq_no;
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rec->fsf_req_id = req_id;
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rec->u.els.d_id = d_id;
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rec->d_id = d_id;
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debug_event(dbf->san, level, rec, sizeof(*rec));
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rec_len = min(len, (u16)ZFCP_DBF_SAN_MAX_PAYLOAD);
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zfcp_dbf_hexdump(dbf->san, rec, sizeof(*rec), level,
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memcpy(rec->payload, data, rec_len);
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buffer, min(buflen, ZFCP_DBF_SAN_MAX_PAYLOAD));
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memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
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debug_event(dbf->san, 1, rec, sizeof(*rec));
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spin_unlock_irqrestore(&dbf->san_lock, flags);
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spin_unlock_irqrestore(&dbf->san_lock, flags);
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}
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}
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/**
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/**
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* zfcp_dbf_san_els_request - trace event for issued ELS
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* zfcp_dbf_san_req - trace event for issued SAN request
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* @fsf_req: request containing issued ELS
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* @tag: indentifier for event
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* @fsf_req: request containing issued CT data
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* d_id: destination ID
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*/
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*/
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void zfcp_dbf_san_els_request(struct zfcp_fsf_req *fsf_req)
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void zfcp_dbf_san_req(char *tag, struct zfcp_fsf_req *fsf, u32 d_id)
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{
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{
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struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
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struct zfcp_dbf *dbf = fsf->adapter->dbf;
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u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
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struct zfcp_fsf_ct_els *ct_els = fsf->data;
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u16 length;
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zfcp_dbf_san_els("oels", 2, fsf_req, d_id,
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length = (u16)(ct_els->req->length + FC_CT_HDR_LEN);
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sg_virt(els->req), els->req->length);
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zfcp_dbf_san(tag, dbf, sg_virt(ct_els->req), ZFCP_DBF_SAN_REQ, length,
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fsf->req_id, d_id);
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}
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}
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/**
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/**
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* zfcp_dbf_san_els_response - trace event for completed ELS
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* zfcp_dbf_san_res - trace event for received SAN request
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* @fsf_req: request containing ELS response
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* @tag: indentifier for event
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* @fsf_req: request containing issued CT data
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*/
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*/
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void zfcp_dbf_san_els_response(struct zfcp_fsf_req *fsf_req)
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void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
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{
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{
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struct zfcp_fsf_ct_els *els = (struct zfcp_fsf_ct_els *)fsf_req->data;
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struct zfcp_dbf *dbf = fsf->adapter->dbf;
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u32 d_id = ntoh24(fsf_req->qtcb->bottom.support.d_id);
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struct zfcp_fsf_ct_els *ct_els = fsf->data;
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u16 length;
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zfcp_dbf_san_els("rels", 2, fsf_req, d_id,
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length = (u16)(ct_els->resp->length + FC_CT_HDR_LEN);
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sg_virt(els->resp), els->resp->length);
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zfcp_dbf_san(tag, dbf, sg_virt(ct_els->resp), ZFCP_DBF_SAN_RES, length,
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fsf->req_id, 0);
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}
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}
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/**
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/**
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* zfcp_dbf_san_incoming_els - trace event for incomig ELS
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* zfcp_dbf_san_in_els - trace event for incoming ELS
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* @fsf_req: request containing unsolicited status buffer with incoming ELS
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* @tag: indentifier for event
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* @fsf_req: request containing issued CT data
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*/
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*/
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void zfcp_dbf_san_incoming_els(struct zfcp_fsf_req *fsf_req)
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void zfcp_dbf_san_in_els(char *tag, struct zfcp_fsf_req *fsf)
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{
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{
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struct fsf_status_read_buffer *buf =
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struct zfcp_dbf *dbf = fsf->adapter->dbf;
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(struct fsf_status_read_buffer *)fsf_req->data;
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struct fsf_status_read_buffer *srb =
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int length = (int)buf->length -
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(struct fsf_status_read_buffer *) fsf->data;
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(int)((void *)&buf->payload - (void *)buf);
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u16 length;
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zfcp_dbf_san_els("iels", 1, fsf_req, ntoh24(buf->d_id),
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length = (u16)(srb->length -
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(void *)buf->payload.data, length);
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offsetof(struct fsf_status_read_buffer, payload));
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zfcp_dbf_san(tag, dbf, srb->payload.data, ZFCP_DBF_SAN_ELS, length,
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fsf->req_id, ntoh24(srb->d_id));
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}
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}
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static int zfcp_dbf_san_view_format(debug_info_t *id, struct debug_view *view,
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char *out_buf, const char *in_buf)
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{
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struct zfcp_dbf_san_record *r = (struct zfcp_dbf_san_record *)in_buf;
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char *p = out_buf;
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if (strncmp(r->tag, "dump", ZFCP_DBF_TAG_SIZE) == 0)
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return 0;
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zfcp_dbf_tag(&p, "tag", r->tag);
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zfcp_dbf_out(&p, "fsf_reqid", "0x%0Lx", r->fsf_reqid);
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zfcp_dbf_out(&p, "fsf_seqno", "0x%08x", r->fsf_seqno);
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if (strncmp(r->tag, "octc", ZFCP_DBF_TAG_SIZE) == 0) {
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struct zfcp_dbf_san_record_ct_request *ct = &r->u.ct_req;
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zfcp_dbf_out(&p, "d_id", "0x%06x", ct->d_id);
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zfcp_dbf_out(&p, "cmd_req_code", "0x%04x", ct->cmd_req_code);
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zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
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zfcp_dbf_out(&p, "gs_type", "0x%02x", ct->gs_type);
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zfcp_dbf_out(&p, "gs_subtype", "0x%02x", ct->gs_subtype);
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zfcp_dbf_out(&p, "options", "0x%02x", ct->options);
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zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
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} else if (strncmp(r->tag, "rctc", ZFCP_DBF_TAG_SIZE) == 0) {
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struct zfcp_dbf_san_record_ct_response *ct = &r->u.ct_resp;
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zfcp_dbf_out(&p, "cmd_rsp_code", "0x%04x", ct->cmd_rsp_code);
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zfcp_dbf_out(&p, "revision", "0x%02x", ct->revision);
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zfcp_dbf_out(&p, "reason_code", "0x%02x", ct->reason_code);
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zfcp_dbf_out(&p, "reason_code_expl", "0x%02x", ct->expl);
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zfcp_dbf_out(&p, "vendor_unique", "0x%02x", ct->vendor_unique);
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zfcp_dbf_out(&p, "max_res_size", "0x%04x", ct->max_res_size);
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} else if (strncmp(r->tag, "oels", ZFCP_DBF_TAG_SIZE) == 0 ||
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strncmp(r->tag, "rels", ZFCP_DBF_TAG_SIZE) == 0 ||
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strncmp(r->tag, "iels", ZFCP_DBF_TAG_SIZE) == 0) {
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struct zfcp_dbf_san_record_els *els = &r->u.els;
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zfcp_dbf_out(&p, "d_id", "0x%06x", els->d_id);
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}
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return p - out_buf;
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}
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static struct debug_view zfcp_dbf_san_view = {
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.name = "structured",
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.header_proc = zfcp_dbf_view_header,
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.format_proc = zfcp_dbf_san_view_format,
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};
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void _zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
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void _zfcp_dbf_scsi(const char *tag, const char *tag2, int level,
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struct zfcp_dbf *dbf, struct scsi_cmnd *scsi_cmnd,
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struct zfcp_dbf *dbf, struct scsi_cmnd *scsi_cmnd,
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struct zfcp_fsf_req *fsf_req, unsigned long old_req_id)
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struct zfcp_fsf_req *fsf_req, unsigned long old_req_id)
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@ -882,8 +778,7 @@ int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
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/* debug feature area which records SAN command failures and recovery */
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/* debug feature area which records SAN command failures and recovery */
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sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
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sprintf(dbf_name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
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dbf->san = zfcp_dbf_reg(dbf_name, 6, &zfcp_dbf_san_view,
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dbf->san = zfcp_dbf_reg(dbf_name, 3, NULL, sizeof(struct zfcp_dbf_san));
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sizeof(struct zfcp_dbf_san_record));
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if (!dbf->san)
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if (!dbf->san)
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goto err_out;
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goto err_out;
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@ -108,6 +108,34 @@ struct zfcp_dbf_rec {
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} u;
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} u;
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} __packed;
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} __packed;
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/**
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* enum zfcp_dbf_san_id - SAN trace record identifier
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* @ZFCP_DBF_SAN_REQ: request trace record id
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* @ZFCP_DBF_SAN_RES: response trace record id
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* @ZFCP_DBF_SAN_ELS: extended link service record id
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*/
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enum zfcp_dbf_san_id {
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ZFCP_DBF_SAN_REQ = 1,
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ZFCP_DBF_SAN_RES = 2,
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ZFCP_DBF_SAN_ELS = 3,
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};
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/** struct zfcp_dbf_san - trace record for SAN requests and responses
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* @id: unique number of recovery record type
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* @tag: identifier string specifying the location of initiation
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* @fsf_req_id: request id for fsf requests
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* @payload: unformatted information related to request/response
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* @d_id: destination id
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*/
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struct zfcp_dbf_san {
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u8 id;
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char tag[ZFCP_DBF_TAG_LEN];
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u64 fsf_req_id;
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u32 d_id;
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#define ZFCP_DBF_SAN_MAX_PAYLOAD (FC_CT_HDR_LEN + 32)
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char payload[ZFCP_DBF_SAN_MAX_PAYLOAD];
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} __packed;
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struct zfcp_dbf_hba_record_response {
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struct zfcp_dbf_hba_record_response {
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u32 fsf_command;
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u32 fsf_command;
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u64 fsf_reqid;
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u64 fsf_reqid;
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@ -176,44 +204,6 @@ struct zfcp_dbf_hba_record {
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} u;
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} u;
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} __attribute__ ((packed));
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} __attribute__ ((packed));
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struct zfcp_dbf_san_record_ct_request {
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u16 cmd_req_code;
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u8 revision;
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u8 gs_type;
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u8 gs_subtype;
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u8 options;
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u16 max_res_size;
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u32 len;
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u32 d_id;
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} __attribute__ ((packed));
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struct zfcp_dbf_san_record_ct_response {
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u16 cmd_rsp_code;
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u8 revision;
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u8 reason_code;
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u8 expl;
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u8 vendor_unique;
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u16 max_res_size;
|
|
||||||
u32 len;
|
|
||||||
} __attribute__ ((packed));
|
|
||||||
|
|
||||||
struct zfcp_dbf_san_record_els {
|
|
||||||
u32 d_id;
|
|
||||||
} __attribute__ ((packed));
|
|
||||||
|
|
||||||
struct zfcp_dbf_san_record {
|
|
||||||
u8 tag[ZFCP_DBF_TAG_SIZE];
|
|
||||||
u64 fsf_reqid;
|
|
||||||
u32 fsf_seqno;
|
|
||||||
union {
|
|
||||||
struct zfcp_dbf_san_record_ct_request ct_req;
|
|
||||||
struct zfcp_dbf_san_record_ct_response ct_resp;
|
|
||||||
struct zfcp_dbf_san_record_els els;
|
|
||||||
} u;
|
|
||||||
} __attribute__ ((packed));
|
|
||||||
|
|
||||||
#define ZFCP_DBF_SAN_MAX_PAYLOAD 1024
|
|
||||||
|
|
||||||
struct zfcp_dbf_scsi_record {
|
struct zfcp_dbf_scsi_record {
|
||||||
u8 tag[ZFCP_DBF_TAG_SIZE];
|
u8 tag[ZFCP_DBF_TAG_SIZE];
|
||||||
u8 tag2[ZFCP_DBF_TAG_SIZE];
|
u8 tag2[ZFCP_DBF_TAG_SIZE];
|
||||||
|
@ -250,7 +240,7 @@ struct zfcp_dbf {
|
||||||
spinlock_t scsi_lock;
|
spinlock_t scsi_lock;
|
||||||
struct zfcp_dbf_rec rec_buf;
|
struct zfcp_dbf_rec rec_buf;
|
||||||
struct zfcp_dbf_hba_record hba_buf;
|
struct zfcp_dbf_hba_record hba_buf;
|
||||||
struct zfcp_dbf_san_record san_buf;
|
struct zfcp_dbf_san san_buf;
|
||||||
struct zfcp_dbf_scsi_record scsi_buf;
|
struct zfcp_dbf_scsi_record scsi_buf;
|
||||||
struct zfcp_adapter *adapter;
|
struct zfcp_adapter *adapter;
|
||||||
};
|
};
|
||||||
|
|
|
@ -55,11 +55,9 @@ extern void _zfcp_dbf_hba_fsf_unsol(const char *, int level, struct zfcp_dbf *,
|
||||||
struct fsf_status_read_buffer *);
|
struct fsf_status_read_buffer *);
|
||||||
extern void zfcp_dbf_hba_qdio(struct zfcp_dbf *, unsigned int, int, int);
|
extern void zfcp_dbf_hba_qdio(struct zfcp_dbf *, unsigned int, int, int);
|
||||||
extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
|
extern void zfcp_dbf_hba_berr(struct zfcp_dbf *, struct zfcp_fsf_req *);
|
||||||
extern void zfcp_dbf_san_ct_request(struct zfcp_fsf_req *, u32);
|
extern void zfcp_dbf_san_req(char *, struct zfcp_fsf_req *, u32);
|
||||||
extern void zfcp_dbf_san_ct_response(struct zfcp_fsf_req *);
|
extern void zfcp_dbf_san_res(char *, struct zfcp_fsf_req *);
|
||||||
extern void zfcp_dbf_san_els_request(struct zfcp_fsf_req *);
|
extern void zfcp_dbf_san_in_els(char *, struct zfcp_fsf_req *);
|
||||||
extern void zfcp_dbf_san_els_response(struct zfcp_fsf_req *);
|
|
||||||
extern void zfcp_dbf_san_incoming_els(struct zfcp_fsf_req *);
|
|
||||||
extern void _zfcp_dbf_scsi(const char *, const char *, int, struct zfcp_dbf *,
|
extern void _zfcp_dbf_scsi(const char *, const char *, int, struct zfcp_dbf *,
|
||||||
struct scsi_cmnd *, struct zfcp_fsf_req *,
|
struct scsi_cmnd *, struct zfcp_fsf_req *,
|
||||||
unsigned long);
|
unsigned long);
|
||||||
|
|
|
@ -251,7 +251,7 @@ void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req)
|
||||||
(struct fsf_status_read_buffer *) fsf_req->data;
|
(struct fsf_status_read_buffer *) fsf_req->data;
|
||||||
unsigned int els_type = status_buffer->payload.data[0];
|
unsigned int els_type = status_buffer->payload.data[0];
|
||||||
|
|
||||||
zfcp_dbf_san_incoming_els(fsf_req);
|
zfcp_dbf_san_in_els("fciels1", fsf_req);
|
||||||
if (els_type == ELS_PLOGI)
|
if (els_type == ELS_PLOGI)
|
||||||
zfcp_fc_incoming_plogi(fsf_req);
|
zfcp_fc_incoming_plogi(fsf_req);
|
||||||
else if (els_type == ELS_LOGO)
|
else if (els_type == ELS_LOGO)
|
||||||
|
|
|
@ -882,7 +882,7 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
|
||||||
|
|
||||||
switch (header->fsf_status) {
|
switch (header->fsf_status) {
|
||||||
case FSF_GOOD:
|
case FSF_GOOD:
|
||||||
zfcp_dbf_san_ct_response(req);
|
zfcp_dbf_san_res("fsscth1", req);
|
||||||
ct->status = 0;
|
ct->status = 0;
|
||||||
break;
|
break;
|
||||||
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
|
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
|
||||||
|
@ -1025,7 +1025,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port,
|
||||||
req->qtcb->header.port_handle = wka_port->handle;
|
req->qtcb->header.port_handle = wka_port->handle;
|
||||||
req->data = ct;
|
req->data = ct;
|
||||||
|
|
||||||
zfcp_dbf_san_ct_request(req, wka_port->d_id);
|
zfcp_dbf_san_req("fssct_1", req, wka_port->d_id);
|
||||||
|
|
||||||
ret = zfcp_fsf_req_send(req);
|
ret = zfcp_fsf_req_send(req);
|
||||||
if (ret)
|
if (ret)
|
||||||
|
@ -1053,7 +1053,7 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
|
||||||
|
|
||||||
switch (header->fsf_status) {
|
switch (header->fsf_status) {
|
||||||
case FSF_GOOD:
|
case FSF_GOOD:
|
||||||
zfcp_dbf_san_els_response(req);
|
zfcp_dbf_san_res("fsselh1", req);
|
||||||
send_els->status = 0;
|
send_els->status = 0;
|
||||||
break;
|
break;
|
||||||
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
|
case FSF_SERVICE_CLASS_NOT_SUPPORTED:
|
||||||
|
@ -1127,7 +1127,7 @@ int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
|
||||||
req->handler = zfcp_fsf_send_els_handler;
|
req->handler = zfcp_fsf_send_els_handler;
|
||||||
req->data = els;
|
req->data = els;
|
||||||
|
|
||||||
zfcp_dbf_san_els_request(req);
|
zfcp_dbf_san_req("fssels1", req, d_id);
|
||||||
|
|
||||||
ret = zfcp_fsf_req_send(req);
|
ret = zfcp_fsf_req_send(req);
|
||||||
if (ret)
|
if (ret)
|
||||||
|
|
Reference in New Issue