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-rw-r--r--drivers/s390/scsi/zfcp_dbf.c44
-rw-r--r--drivers/s390/scsi/zfcp_dbf.h32
-rw-r--r--drivers/s390/scsi/zfcp_def.h1
-rw-r--r--drivers/s390/scsi/zfcp_ext.h3
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c28
5 files changed, 100 insertions, 8 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 1234294700c4..673e42defb91 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -4,7 +4,7 @@
*
* Debug traces for zfcp.
*
- * Copyright IBM Corp. 2002, 2018
+ * Copyright IBM Corp. 2002, 2020
*/
#define KMSG_COMPONENT "zfcp"
@@ -104,6 +104,48 @@ void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
}
/**
+ * zfcp_dbf_hba_fsf_fces - trace event for fsf responses related to
+ * FC Endpoint Security (FCES)
+ * @tag: tag indicating which kind of FC Endpoint Security event has occurred
+ * @req: request for which a response was received
+ * @wwpn: remote port or ZFCP_DBF_INVALID_WWPN
+ * @fc_security_old: old FC Endpoint Security of FCP device or connection
+ * @fc_security_new: new FC Endpoint Security of FCP device or connection
+ */
+void zfcp_dbf_hba_fsf_fces(char *tag, const struct zfcp_fsf_req *req, u64 wwpn,
+ u32 fc_security_old, u32 fc_security_new)
+{
+ struct zfcp_dbf *dbf = req->adapter->dbf;
+ struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
+ struct fsf_qtcb_header *q_head = &req->qtcb->header;
+ struct zfcp_dbf_hba *rec = &dbf->hba_buf;
+ static int const level = 3;
+ unsigned long flags;
+
+ if (unlikely(!debug_level_enabled(dbf->hba, level)))
+ return;
+
+ spin_lock_irqsave(&dbf->hba_lock, flags);
+ memset(rec, 0, sizeof(*rec));
+
+ memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
+ rec->id = ZFCP_DBF_HBA_FCES;
+ rec->fsf_req_id = req->req_id;
+ rec->fsf_req_status = req->status;
+ rec->fsf_cmd = q_head->fsf_command;
+ rec->fsf_seq_no = q_pref->req_seq_no;
+ rec->u.fces.req_issued = req->issued;
+ rec->u.fces.fsf_status = q_head->fsf_status;
+ rec->u.fces.port_handle = q_head->port_handle;
+ rec->u.fces.wwpn = wwpn;
+ rec->u.fces.fc_security_old = fc_security_old;
+ rec->u.fces.fc_security_new = fc_security_new;
+
+ debug_event(dbf->hba, level, rec, sizeof(*rec));
+ spin_unlock_irqrestore(&dbf->hba_lock, flags);
+}
+
+/**
* zfcp_dbf_hba_fsf_uss - trace event for an unsolicited status buffer
* @tag: tag indicating which kind of unsolicited status has been received
* @req: request providing the unsolicited status
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 900c779cc39b..4d1435c573bc 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -3,7 +3,7 @@
* zfcp device driver
* debug feature declarations
*
- * Copyright IBM Corp. 2008, 2017
+ * Copyright IBM Corp. 2008, 2020
*/
#ifndef ZFCP_DBF_H
@@ -16,6 +16,7 @@
#define ZFCP_DBF_TAG_LEN 7
+#define ZFCP_DBF_INVALID_WWPN 0x0000000000000000ull
#define ZFCP_DBF_INVALID_LUN 0xFFFFFFFFFFFFFFFFull
enum zfcp_dbf_pseudo_erp_act_type {
@@ -158,17 +159,38 @@ struct zfcp_dbf_hba_uss {
} __packed;
/**
+ * struct zfcp_dbf_hba_fces - trace record for FC Endpoint Security
+ * @req_issued: timestamp when request was issued
+ * @fsf_status: fsf status
+ * @port_handle: handle for port
+ * @wwpn: remote FC port WWPN
+ * @fc_security_old: old FC Endpoint Security
+ * @fc_security_new: new FC Endpoint Security
+ *
+ */
+struct zfcp_dbf_hba_fces {
+ u64 req_issued;
+ u32 fsf_status;
+ u32 port_handle;
+ u64 wwpn;
+ u32 fc_security_old;
+ u32 fc_security_new;
+} __packed;
+
+/**
* enum zfcp_dbf_hba_id - HBA trace record identifier
* @ZFCP_DBF_HBA_RES: response trace record
* @ZFCP_DBF_HBA_USS: unsolicited status trace record
* @ZFCP_DBF_HBA_BIT: bit error trace record
* @ZFCP_DBF_HBA_BASIC: basic adapter event, only trace tag, no other data
+ * @ZFCP_DBF_HBA_FCES: FC Endpoint Security trace record
*/
enum zfcp_dbf_hba_id {
ZFCP_DBF_HBA_RES = 1,
ZFCP_DBF_HBA_USS = 2,
ZFCP_DBF_HBA_BIT = 3,
ZFCP_DBF_HBA_BASIC = 4,
+ ZFCP_DBF_HBA_FCES = 5,
};
/**
@@ -181,9 +203,10 @@ enum zfcp_dbf_hba_id {
* @fsf_seq_no: fsf sequence number
* @pl_len: length of payload stored as zfcp_dbf_pay
* @u: record type specific data
- * @u.res: data for fsf responses
- * @u.uss: data for unsolicited status buffer
- * @u.be: data for bit error unsolicited status buffer
+ * @u.res: data for fsf responses
+ * @u.uss: data for unsolicited status buffer
+ * @u.be: data for bit error unsolicited status buffer
+ * @u.fces: data for FC Endpoint Security
*/
struct zfcp_dbf_hba {
u8 id;
@@ -197,6 +220,7 @@ struct zfcp_dbf_hba {
struct zfcp_dbf_hba_res res;
struct zfcp_dbf_hba_uss uss;
struct fsf_bit_error_payload be;
+ struct zfcp_dbf_hba_fces fces;
} u;
} __packed;
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index b6af4a93681c..da8a5ceb615c 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -159,6 +159,7 @@ struct zfcp_adapter {
u32 connection_features; /* host connection features */
u32 hardware_version; /* of FCP channel */
u32 fc_security_algorithms; /* of FCP channel */
+ u32 fc_security_algorithms_old; /* of FCP channel */
u16 timer_ticks; /* time int for a tick */
struct Scsi_Host *scsi_host; /* Pointer to mid-layer */
struct list_head port_list; /* remote port list */
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index ee82fb540db3..88294ca0e2ea 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -44,6 +44,9 @@ extern void zfcp_dbf_rec_run_lvl(int level, char *tag,
extern void zfcp_dbf_rec_run_wka(char *, struct zfcp_fc_wka_port *, u64);
extern void zfcp_dbf_hba_fsf_uss(char *, struct zfcp_fsf_req *);
extern void zfcp_dbf_hba_fsf_res(char *, int, struct zfcp_fsf_req *);
+extern void zfcp_dbf_hba_fsf_fces(char *tag, const struct zfcp_fsf_req *req,
+ u64 wwpn, u32 fc_security_old,
+ u32 fc_security_new);
extern void zfcp_dbf_hba_bit_err(char *, struct zfcp_fsf_req *);
extern void zfcp_dbf_hba_def_err(struct zfcp_adapter *, u64, u16, void **);
extern void zfcp_dbf_hba_basic(char *, struct zfcp_adapter *);
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 08ce0fa04665..1d3eac12a8c6 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -741,6 +741,22 @@ ssize_t zfcp_fsf_scnprint_fc_security(char *buf, size_t size, u32 fc_security,
return len;
}
+static void zfcp_fsf_dbf_adapter_fc_security(struct zfcp_adapter *adapter,
+ struct zfcp_fsf_req *req)
+{
+ if (adapter->fc_security_algorithms ==
+ adapter->fc_security_algorithms_old) {
+ /* no change, no trace */
+ return;
+ }
+
+ zfcp_dbf_hba_fsf_fces("fsfcesa", req, ZFCP_DBF_INVALID_WWPN,
+ adapter->fc_security_algorithms_old,
+ adapter->fc_security_algorithms);
+
+ adapter->fc_security_algorithms_old = adapter->fc_security_algorithms;
+}
+
static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req)
{
struct zfcp_adapter *adapter = req->adapter;
@@ -763,6 +779,7 @@ static void zfcp_fsf_exchange_port_evaluate(struct zfcp_fsf_req *req)
bottom->fc_security_algorithms;
else
adapter->fc_security_algorithms = 0;
+ zfcp_fsf_dbf_adapter_fc_security(adapter, req);
}
static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req)
@@ -1579,16 +1596,21 @@ out_unlock:
return retval;
}
-static void zfcp_fsf_log_port_fc_security(struct zfcp_port *port)
+static void zfcp_fsf_log_port_fc_security(struct zfcp_port *port,
+ struct zfcp_fsf_req *req)
{
char mnemonic_old[ZFCP_FSF_MAX_FC_SECURITY_MNEMONIC_LENGTH];
char mnemonic_new[ZFCP_FSF_MAX_FC_SECURITY_MNEMONIC_LENGTH];
if (port->connection_info == port->connection_info_old) {
- /* no change, no log */
+ /* no change, no log nor trace */
return;
}
+ zfcp_dbf_hba_fsf_fces("fsfcesp", req, port->wwpn,
+ port->connection_info_old,
+ port->connection_info);
+
zfcp_fsf_scnprint_fc_security(mnemonic_old, sizeof(mnemonic_old),
port->connection_info_old,
ZFCP_FSF_PRINT_FMT_SINGLEITEM);
@@ -1663,7 +1685,7 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
port->connection_info = bottom->connection_info;
else
port->connection_info = 0;
- zfcp_fsf_log_port_fc_security(port);
+ zfcp_fsf_log_port_fc_security(port, req);
atomic_or(ZFCP_STATUS_COMMON_OPEN |
ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
atomic_andnot(ZFCP_STATUS_COMMON_ACCESS_BOXED,
generated by cgit v1.2.3 (git 2.39.1) at 2024-10-17 22:15:46 +0000