^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * zfcp device driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Debug traces for zfcp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright IBM Corp. 2002, 2020
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define KMSG_COMPONENT "zfcp"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/debug.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "zfcp_dbf.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include "zfcp_ext.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "zfcp_fc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static u32 dbfsize = 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) module_param(dbfsize, uint, 0400);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) MODULE_PARM_DESC(dbfsize,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) "number of pages for each debug feature area (default 4)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static u32 dbflevel = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) module_param(dbflevel, uint, 0400);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) MODULE_PARM_DESC(dbflevel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) "log level for each debug feature area "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) "(default 3, range 0..6)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static inline unsigned int zfcp_dbf_plen(unsigned int offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) return sizeof(struct zfcp_dbf_pay) + offset - ZFCP_DBF_PAY_MAX_REC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) void zfcp_dbf_pl_write(struct zfcp_dbf *dbf, void *data, u16 length, char *area,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) u64 req_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) struct zfcp_dbf_pay *pl = &dbf->pay_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) u16 offset = 0, rec_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) spin_lock(&dbf->pay_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) memset(pl, 0, sizeof(*pl));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) pl->fsf_req_id = req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) memcpy(pl->area, area, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) while (offset < length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) rec_length = min((u16) ZFCP_DBF_PAY_MAX_REC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) (u16) (length - offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) memcpy(pl->data, data + offset, rec_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) debug_event(dbf->pay, 1, pl, zfcp_dbf_plen(rec_length));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) offset += rec_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) pl->counter++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) spin_unlock(&dbf->pay_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * zfcp_dbf_hba_fsf_res - trace event for fsf responses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * @tag: tag indicating which kind of FSF response has been received
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * @level: trace level to be used for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * @req: request for which a response was received
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) void zfcp_dbf_hba_fsf_res(char *tag, int level, struct zfcp_fsf_req *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) struct zfcp_dbf *dbf = req->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) struct fsf_qtcb_header *q_head = &req->qtcb->header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct zfcp_dbf_hba *rec = &dbf->hba_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) spin_lock_irqsave(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) rec->id = ZFCP_DBF_HBA_RES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) rec->fsf_req_id = req->req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) rec->fsf_req_status = req->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) rec->fsf_cmd = q_head->fsf_command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) rec->fsf_seq_no = q_pref->req_seq_no;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) rec->u.res.req_issued = req->issued;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) rec->u.res.prot_status = q_pref->prot_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) rec->u.res.fsf_status = q_head->fsf_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) rec->u.res.port_handle = q_head->port_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) rec->u.res.lun_handle = q_head->lun_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) memcpy(rec->u.res.prot_status_qual, &q_pref->prot_status_qual,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) FSF_PROT_STATUS_QUAL_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) memcpy(rec->u.res.fsf_status_qual, &q_head->fsf_status_qual,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) FSF_STATUS_QUALIFIER_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) rec->pl_len = q_head->log_length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) zfcp_dbf_pl_write(dbf, (char *)q_pref + q_head->log_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) rec->pl_len, "fsf_res", req->req_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) debug_event(dbf->hba, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) spin_unlock_irqrestore(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) * zfcp_dbf_hba_fsf_fces - trace event for fsf responses related to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) * FC Endpoint Security (FCES)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) * @tag: tag indicating which kind of FC Endpoint Security event has occurred
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) * @req: request for which a response was received
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * @wwpn: remote port or ZFCP_DBF_INVALID_WWPN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * @fc_security_old: old FC Endpoint Security of FCP device or connection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * @fc_security_new: new FC Endpoint Security of FCP device or connection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) void zfcp_dbf_hba_fsf_fces(char *tag, const struct zfcp_fsf_req *req, u64 wwpn,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) u32 fc_security_old, u32 fc_security_new)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct zfcp_dbf *dbf = req->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) struct fsf_qtcb_prefix *q_pref = &req->qtcb->prefix;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) struct fsf_qtcb_header *q_head = &req->qtcb->header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) struct zfcp_dbf_hba *rec = &dbf->hba_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) static int const level = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) if (unlikely(!debug_level_enabled(dbf->hba, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) spin_lock_irqsave(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) rec->id = ZFCP_DBF_HBA_FCES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) rec->fsf_req_id = req->req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) rec->fsf_req_status = req->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) rec->fsf_cmd = q_head->fsf_command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) rec->fsf_seq_no = q_pref->req_seq_no;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) rec->u.fces.req_issued = req->issued;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) rec->u.fces.fsf_status = q_head->fsf_status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) rec->u.fces.port_handle = q_head->port_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) rec->u.fces.wwpn = wwpn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) rec->u.fces.fc_security_old = fc_security_old;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) rec->u.fces.fc_security_new = fc_security_new;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) debug_event(dbf->hba, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) spin_unlock_irqrestore(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * zfcp_dbf_hba_fsf_uss - trace event for an unsolicited status buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * @tag: tag indicating which kind of unsolicited status has been received
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) * @req: request providing the unsolicited status
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) void zfcp_dbf_hba_fsf_uss(char *tag, struct zfcp_fsf_req *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct zfcp_dbf *dbf = req->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct fsf_status_read_buffer *srb = req->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct zfcp_dbf_hba *rec = &dbf->hba_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) static int const level = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) if (unlikely(!debug_level_enabled(dbf->hba, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) spin_lock_irqsave(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) rec->id = ZFCP_DBF_HBA_USS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) rec->fsf_req_id = req->req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) rec->fsf_req_status = req->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) rec->fsf_cmd = FSF_QTCB_UNSOLICITED_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (!srb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) goto log;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) rec->u.uss.status_type = srb->status_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) rec->u.uss.status_subtype = srb->status_subtype;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) rec->u.uss.d_id = ntoh24(srb->d_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) rec->u.uss.lun = srb->fcp_lun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) memcpy(&rec->u.uss.queue_designator, &srb->queue_designator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) sizeof(rec->u.uss.queue_designator));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) /* status read buffer payload length */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) rec->pl_len = (!srb->length) ? 0 : srb->length -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) offsetof(struct fsf_status_read_buffer, payload);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) if (rec->pl_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) zfcp_dbf_pl_write(dbf, srb->payload.data, rec->pl_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) "fsf_uss", req->req_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) log:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) debug_event(dbf->hba, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) spin_unlock_irqrestore(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * zfcp_dbf_hba_bit_err - trace event for bit error conditions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * @tag: tag indicating which kind of bit error unsolicited status was received
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * @req: request which caused the bit_error condition
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) void zfcp_dbf_hba_bit_err(char *tag, struct zfcp_fsf_req *req)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) struct zfcp_dbf *dbf = req->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) struct zfcp_dbf_hba *rec = &dbf->hba_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) struct fsf_status_read_buffer *sr_buf = req->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) static int const level = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (unlikely(!debug_level_enabled(dbf->hba, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) spin_lock_irqsave(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) rec->id = ZFCP_DBF_HBA_BIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) rec->fsf_req_id = req->req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) rec->fsf_req_status = req->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) rec->fsf_cmd = FSF_QTCB_UNSOLICITED_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) memcpy(&rec->u.be, &sr_buf->payload.bit_error,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) sizeof(struct fsf_bit_error_payload));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) debug_event(dbf->hba, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) spin_unlock_irqrestore(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * zfcp_dbf_hba_def_err - trace event for deferred error messages
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) * @adapter: pointer to struct zfcp_adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) * @req_id: request id which caused the deferred error message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) * @scount: number of sbals incl. the signaling sbal
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) * @pl: array of all involved sbals
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) void zfcp_dbf_hba_def_err(struct zfcp_adapter *adapter, u64 req_id, u16 scount,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) void **pl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct zfcp_dbf *dbf = adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct zfcp_dbf_pay *payload = &dbf->pay_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) static int const level = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) u16 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (unlikely(!debug_level_enabled(dbf->pay, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (!pl)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) spin_lock_irqsave(&dbf->pay_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) memset(payload, 0, sizeof(*payload));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) memcpy(payload->area, "def_err", 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) payload->fsf_req_id = req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) payload->counter = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) length = min((u16)sizeof(struct qdio_buffer),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) (u16)ZFCP_DBF_PAY_MAX_REC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) while (payload->counter < scount && (char *)pl[payload->counter]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) memcpy(payload->data, (char *)pl[payload->counter], length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) debug_event(dbf->pay, level, payload, zfcp_dbf_plen(length));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) payload->counter++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) spin_unlock_irqrestore(&dbf->pay_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) * zfcp_dbf_hba_basic - trace event for basic adapter events
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) * @adapter: pointer to struct zfcp_adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) void zfcp_dbf_hba_basic(char *tag, struct zfcp_adapter *adapter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) struct zfcp_dbf *dbf = adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) struct zfcp_dbf_hba *rec = &dbf->hba_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) static int const level = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) if (unlikely(!debug_level_enabled(dbf->hba, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) spin_lock_irqsave(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) rec->id = ZFCP_DBF_HBA_BASIC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) debug_event(dbf->hba, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) spin_unlock_irqrestore(&dbf->hba_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) static void zfcp_dbf_set_common(struct zfcp_dbf_rec *rec,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) struct zfcp_adapter *adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) struct zfcp_port *port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) struct scsi_device *sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) rec->adapter_status = atomic_read(&adapter->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) if (port) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) rec->port_status = atomic_read(&port->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) rec->wwpn = port->wwpn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) rec->d_id = port->d_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) if (sdev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) rec->lun_status = atomic_read(&sdev_to_zfcp(sdev)->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) rec->lun = zfcp_scsi_dev_lun(sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) rec->lun = ZFCP_DBF_INVALID_LUN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) * zfcp_dbf_rec_trig - trace event related to triggered recovery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) * @adapter: adapter on which the erp_action should run
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) * @port: remote port involved in the erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) * @sdev: scsi device involved in the erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) * @want: wanted erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) * @need: required erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) * The adapter->erp_lock has to be held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) void zfcp_dbf_rec_trig(char *tag, struct zfcp_adapter *adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) struct zfcp_port *port, struct scsi_device *sdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) u8 want, u8 need)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct zfcp_dbf *dbf = adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) struct zfcp_dbf_rec *rec = &dbf->rec_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) static int const level = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) struct list_head *entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) lockdep_assert_held(&adapter->erp_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (unlikely(!debug_level_enabled(dbf->rec, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) spin_lock_irqsave(&dbf->rec_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) rec->id = ZFCP_DBF_REC_TRIG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) zfcp_dbf_set_common(rec, adapter, port, sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) list_for_each(entry, &adapter->erp_ready_head)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) rec->u.trig.ready++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) list_for_each(entry, &adapter->erp_running_head)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) rec->u.trig.running++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) rec->u.trig.want = want;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) rec->u.trig.need = need;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) debug_event(dbf->rec, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) spin_unlock_irqrestore(&dbf->rec_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) * zfcp_dbf_rec_trig_lock - trace event related to triggered recovery with lock
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) * @adapter: adapter on which the erp_action should run
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) * @port: remote port involved in the erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) * @sdev: scsi device involved in the erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * @want: wanted erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * @need: required erp_action
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) * The adapter->erp_lock must not be held.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) void zfcp_dbf_rec_trig_lock(char *tag, struct zfcp_adapter *adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) struct zfcp_port *port, struct scsi_device *sdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) u8 want, u8 need)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) read_lock_irqsave(&adapter->erp_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) zfcp_dbf_rec_trig(tag, adapter, port, sdev, want, need);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) read_unlock_irqrestore(&adapter->erp_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) * zfcp_dbf_rec_run_lvl - trace event related to running recovery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) * @level: trace level to be used for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * @erp: erp_action running
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) void zfcp_dbf_rec_run_lvl(int level, char *tag, struct zfcp_erp_action *erp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct zfcp_dbf *dbf = erp->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct zfcp_dbf_rec *rec = &dbf->rec_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (!debug_level_enabled(dbf->rec, level))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) spin_lock_irqsave(&dbf->rec_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) rec->id = ZFCP_DBF_REC_RUN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) zfcp_dbf_set_common(rec, erp->adapter, erp->port, erp->sdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) rec->u.run.fsf_req_id = erp->fsf_req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) rec->u.run.rec_status = erp->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) rec->u.run.rec_step = erp->step;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) rec->u.run.rec_action = erp->type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (erp->sdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) rec->u.run.rec_count =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) atomic_read(&sdev_to_zfcp(erp->sdev)->erp_counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) else if (erp->port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) rec->u.run.rec_count = atomic_read(&erp->port->erp_counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) rec->u.run.rec_count = atomic_read(&erp->adapter->erp_counter);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) debug_event(dbf->rec, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) spin_unlock_irqrestore(&dbf->rec_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) * zfcp_dbf_rec_run - trace event related to running recovery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) * @erp: erp_action running
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) void zfcp_dbf_rec_run(char *tag, struct zfcp_erp_action *erp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) zfcp_dbf_rec_run_lvl(1, tag, erp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) * zfcp_dbf_rec_run_wka - trace wka port event with info like running recovery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) * @wka_port: well known address port
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) * @req_id: request ID to correlate with potential HBA trace record
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) void zfcp_dbf_rec_run_wka(char *tag, struct zfcp_fc_wka_port *wka_port,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) u64 req_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) struct zfcp_dbf *dbf = wka_port->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) struct zfcp_dbf_rec *rec = &dbf->rec_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) static int const level = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) if (unlikely(!debug_level_enabled(dbf->rec, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) spin_lock_irqsave(&dbf->rec_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) rec->id = ZFCP_DBF_REC_RUN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) rec->port_status = wka_port->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) rec->d_id = wka_port->d_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) rec->lun = ZFCP_DBF_INVALID_LUN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) rec->u.run.fsf_req_id = req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) rec->u.run.rec_status = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) rec->u.run.rec_step = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) rec->u.run.rec_action = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) rec->u.run.rec_count = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) debug_event(dbf->rec, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) spin_unlock_irqrestore(&dbf->rec_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) #define ZFCP_DBF_SAN_LEVEL 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) static inline
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) char *paytag, struct scatterlist *sg, u8 id, u16 len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) u64 req_id, u32 d_id, u16 cap_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) struct zfcp_dbf_san *rec = &dbf->san_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) u16 rec_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) struct zfcp_dbf_pay *payload = &dbf->pay_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) u16 pay_sum = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) spin_lock_irqsave(&dbf->san_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) rec->id = id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) rec->fsf_req_id = req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) rec->d_id = d_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) rec->pl_len = len; /* full length even if we cap pay below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) if (!sg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) goto out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) rec_len = min_t(unsigned int, sg->length, ZFCP_DBF_SAN_MAX_PAYLOAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) memcpy(rec->payload, sg_virt(sg), rec_len); /* part of 1st sg entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) if (len <= rec_len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) goto out; /* skip pay record if full content in rec->payload */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) /* if (len > rec_len):
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) * dump data up to cap_len ignoring small duplicate in rec->payload
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) spin_lock(&dbf->pay_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) memset(payload, 0, sizeof(*payload));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) memcpy(payload->area, paytag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) payload->fsf_req_id = req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) payload->counter = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) for (; sg && pay_sum < cap_len; sg = sg_next(sg)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) u16 pay_len, offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) while (offset < sg->length && pay_sum < cap_len) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) pay_len = min((u16)ZFCP_DBF_PAY_MAX_REC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) (u16)(sg->length - offset));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) /* cap_len <= pay_sum < cap_len+ZFCP_DBF_PAY_MAX_REC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) memcpy(payload->data, sg_virt(sg) + offset, pay_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) debug_event(dbf->pay, ZFCP_DBF_SAN_LEVEL, payload,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) zfcp_dbf_plen(pay_len));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) payload->counter++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) offset += pay_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) pay_sum += pay_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) spin_unlock(&dbf->pay_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) debug_event(dbf->san, ZFCP_DBF_SAN_LEVEL, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) spin_unlock_irqrestore(&dbf->san_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * zfcp_dbf_san_req - trace event for issued SAN request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) * @fsf: request containing issued CT or ELS data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) * @d_id: N_Port_ID where SAN request is sent to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) * d_id: destination ID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) void zfcp_dbf_san_req(char *tag, struct zfcp_fsf_req *fsf, u32 d_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) struct zfcp_dbf *dbf = fsf->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) struct zfcp_fsf_ct_els *ct_els = fsf->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) u16 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) if (unlikely(!debug_level_enabled(dbf->san, ZFCP_DBF_SAN_LEVEL)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) length = (u16)zfcp_qdio_real_bytes(ct_els->req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) zfcp_dbf_san(tag, dbf, "san_req", ct_els->req, ZFCP_DBF_SAN_REQ,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) length, fsf->req_id, d_id, length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) static u16 zfcp_dbf_san_res_cap_len_if_gpn_ft(char *tag,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) struct zfcp_fsf_req *fsf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) u16 len)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) struct zfcp_fsf_ct_els *ct_els = fsf->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) struct fc_ct_hdr *reqh = sg_virt(ct_els->req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) struct fc_ns_gid_ft *reqn = (struct fc_ns_gid_ft *)(reqh + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) struct scatterlist *resp_entry = ct_els->resp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) struct fc_ct_hdr *resph;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) struct fc_gpn_ft_resp *acc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) int max_entries, x, last = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) if (!(memcmp(tag, "fsscth2", 7) == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) && ct_els->d_id == FC_FID_DIR_SERV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) && reqh->ct_rev == FC_CT_REV
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) && reqh->ct_in_id[0] == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) && reqh->ct_in_id[1] == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) && reqh->ct_in_id[2] == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) && reqh->ct_fs_type == FC_FST_DIR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) && reqh->ct_fs_subtype == FC_NS_SUBTYPE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) && reqh->ct_options == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) && reqh->_ct_resvd1 == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) && reqh->ct_cmd == cpu_to_be16(FC_NS_GPN_FT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) /* reqh->ct_mr_size can vary so do not match but read below */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) && reqh->_ct_resvd2 == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) && reqh->ct_reason == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) && reqh->ct_explan == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) && reqh->ct_vendor == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) && reqn->fn_resvd == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) && reqn->fn_domain_id_scope == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) && reqn->fn_area_id_scope == 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) && reqn->fn_fc4_type == FC_TYPE_FCP))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) return len; /* not GPN_FT response so do not cap */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) acc = sg_virt(resp_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) /* cap all but accept CT responses to at least the CT header */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) resph = (struct fc_ct_hdr *)acc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) if ((ct_els->status) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) (resph->ct_cmd != cpu_to_be16(FC_FS_ACC)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) return max(FC_CT_HDR_LEN, ZFCP_DBF_SAN_MAX_PAYLOAD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) max_entries = (be16_to_cpu(reqh->ct_mr_size) * 4 /
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) sizeof(struct fc_gpn_ft_resp))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) + 1 /* zfcp_fc_scan_ports: bytes correct, entries off-by-one
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) * to account for header as 1st pseudo "entry" */;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) /* the basic CT_IU preamble is the same size as one entry in the GPN_FT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) * response, allowing us to skip special handling for it - just skip it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) for (x = 1; x < max_entries && !last; x++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) if (x % (ZFCP_FC_GPN_FT_ENT_PAGE + 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) acc++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) acc = sg_virt(++resp_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) last = acc->fp_flags & FC_NS_FID_LAST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) len = min(len, (u16)(x * sizeof(struct fc_gpn_ft_resp)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) return len; /* cap after last entry */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) * zfcp_dbf_san_res - trace event for received SAN request
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) * @fsf: request containing received CT or ELS data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) struct zfcp_dbf *dbf = fsf->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) struct zfcp_fsf_ct_els *ct_els = fsf->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) u16 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) if (unlikely(!debug_level_enabled(dbf->san, ZFCP_DBF_SAN_LEVEL)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) length = (u16)zfcp_qdio_real_bytes(ct_els->resp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) zfcp_dbf_san(tag, dbf, "san_res", ct_els->resp, ZFCP_DBF_SAN_RES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) length, fsf->req_id, ct_els->d_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) zfcp_dbf_san_res_cap_len_if_gpn_ft(tag, fsf, length));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) * zfcp_dbf_san_in_els - trace event for incoming ELS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) * @tag: identifier for event
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) * @fsf: request containing received ELS data
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) void zfcp_dbf_san_in_els(char *tag, struct zfcp_fsf_req *fsf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) struct zfcp_dbf *dbf = fsf->adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) struct fsf_status_read_buffer *srb =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) (struct fsf_status_read_buffer *) fsf->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) u16 length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) struct scatterlist sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) if (unlikely(!debug_level_enabled(dbf->san, ZFCP_DBF_SAN_LEVEL)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) length = (u16)(srb->length -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) offsetof(struct fsf_status_read_buffer, payload));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) sg_init_one(&sg, srb->payload.data, length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) zfcp_dbf_san(tag, dbf, "san_els", &sg, ZFCP_DBF_SAN_ELS, length,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) fsf->req_id, ntoh24(srb->d_id), length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) * zfcp_dbf_scsi_common() - Common trace event helper for scsi.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) * @tag: Identifier for event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) * @level: trace level of event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) * @sdev: Pointer to SCSI device as context for this event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) * @sc: Pointer to SCSI command, or NULL with task management function (TMF).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) * @fsf: Pointer to FSF request, or NULL.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) void zfcp_dbf_scsi_common(char *tag, int level, struct scsi_device *sdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) struct zfcp_adapter *adapter =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) (struct zfcp_adapter *) sdev->host->hostdata[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) struct zfcp_dbf *dbf = adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) struct zfcp_dbf_scsi *rec = &dbf->scsi_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) struct fcp_resp_with_ext *fcp_rsp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) struct fcp_resp_rsp_info *fcp_rsp_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) spin_lock_irqsave(&dbf->scsi_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) rec->id = ZFCP_DBF_SCSI_CMND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) if (sc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) rec->scsi_result = sc->result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) rec->scsi_retries = sc->retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) rec->scsi_allowed = sc->allowed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) rec->scsi_id = sc->device->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) rec->scsi_lun = (u32)sc->device->lun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) rec->scsi_lun_64_hi = (u32)(sc->device->lun >> 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) rec->host_scribble = (unsigned long)sc->host_scribble;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) memcpy(rec->scsi_opcode, sc->cmnd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) min_t(int, sc->cmd_len, ZFCP_DBF_SCSI_OPCODE));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) rec->scsi_result = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) rec->scsi_retries = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) rec->scsi_allowed = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) rec->scsi_id = sdev->id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) rec->scsi_lun = (u32)sdev->lun;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) rec->scsi_lun_64_hi = (u32)(sdev->lun >> 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) rec->host_scribble = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) memset(rec->scsi_opcode, 0xff, ZFCP_DBF_SCSI_OPCODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) if (fsf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) rec->fsf_req_id = fsf->req_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) rec->pl_len = FCP_RESP_WITH_EXT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) fcp_rsp = &(fsf->qtcb->bottom.io.fcp_rsp.iu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) /* mandatory parts of FCP_RSP IU in this SCSI record */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) memcpy(&rec->fcp_rsp, fcp_rsp, FCP_RESP_WITH_EXT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) fcp_rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) rec->fcp_rsp_info = fcp_rsp_info->rsp_code;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_rsp_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_sns_len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) /* complete FCP_RSP IU in associated PAYload record
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) * but only if there are optional parts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) if (fcp_rsp->resp.fr_flags != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) zfcp_dbf_pl_write(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) dbf, fcp_rsp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) /* at least one full PAY record
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) * but not beyond hardware response field
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) min_t(u16, max_t(u16, rec->pl_len,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) ZFCP_DBF_PAY_MAX_REC),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) FSF_FCP_RSP_SIZE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) "fcp_riu", fsf->req_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) debug_event(dbf->scsi, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) spin_unlock_irqrestore(&dbf->scsi_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) * zfcp_dbf_scsi_eh() - Trace event for special cases of scsi_eh callbacks.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) * @tag: Identifier for event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) * @adapter: Pointer to zfcp adapter as context for this event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) * @scsi_id: SCSI ID/target to indicate scope of task management function (TMF).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) * @ret: Return value of calling function.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) * This SCSI trace variant does not depend on any of:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) * scsi_cmnd, zfcp_fsf_req, scsi_device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) void zfcp_dbf_scsi_eh(char *tag, struct zfcp_adapter *adapter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) unsigned int scsi_id, int ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) struct zfcp_dbf *dbf = adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) struct zfcp_dbf_scsi *rec = &dbf->scsi_buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) unsigned long flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) static int const level = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) if (unlikely(!debug_level_enabled(adapter->dbf->scsi, level)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) spin_lock_irqsave(&dbf->scsi_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) memset(rec, 0, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) memcpy(rec->tag, tag, ZFCP_DBF_TAG_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) rec->id = ZFCP_DBF_SCSI_CMND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) rec->scsi_result = ret; /* re-use field, int is 4 bytes and fits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) rec->scsi_retries = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) rec->scsi_allowed = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) rec->fcp_rsp_info = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) rec->scsi_id = scsi_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) rec->scsi_lun = (u32)ZFCP_DBF_INVALID_LUN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) rec->scsi_lun_64_hi = (u32)(ZFCP_DBF_INVALID_LUN >> 32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) rec->host_scribble = ~0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) memset(rec->scsi_opcode, 0xff, ZFCP_DBF_SCSI_OPCODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) debug_event(dbf->scsi, level, rec, sizeof(*rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) spin_unlock_irqrestore(&dbf->scsi_lock, flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) static debug_info_t *zfcp_dbf_reg(const char *name, int size, int rec_size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) struct debug_info *d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) d = debug_register(name, size, 1, rec_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) if (!d)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) debug_register_view(d, &debug_hex_ascii_view);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) debug_set_level(d, dbflevel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) return d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) static void zfcp_dbf_unregister(struct zfcp_dbf *dbf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) if (!dbf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) debug_unregister(dbf->scsi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) debug_unregister(dbf->san);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) debug_unregister(dbf->hba);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) debug_unregister(dbf->pay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) debug_unregister(dbf->rec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) kfree(dbf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) * zfcp_adapter_debug_register - registers debug feature for an adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) * @adapter: pointer to adapter for which debug features should be registered
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) * return: -ENOMEM on error, 0 otherwise
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) int zfcp_dbf_adapter_register(struct zfcp_adapter *adapter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) char name[DEBUG_MAX_NAME_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) struct zfcp_dbf *dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) dbf = kzalloc(sizeof(struct zfcp_dbf), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) if (!dbf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) spin_lock_init(&dbf->pay_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) spin_lock_init(&dbf->hba_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) spin_lock_init(&dbf->san_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) spin_lock_init(&dbf->scsi_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) spin_lock_init(&dbf->rec_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) /* debug feature area which records recovery activity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) sprintf(name, "zfcp_%s_rec", dev_name(&adapter->ccw_device->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) dbf->rec = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_rec));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) if (!dbf->rec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) /* debug feature area which records HBA (FSF and QDIO) conditions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) sprintf(name, "zfcp_%s_hba", dev_name(&adapter->ccw_device->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) dbf->hba = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_hba));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) if (!dbf->hba)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) /* debug feature area which records payload info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) sprintf(name, "zfcp_%s_pay", dev_name(&adapter->ccw_device->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) dbf->pay = zfcp_dbf_reg(name, dbfsize * 2, sizeof(struct zfcp_dbf_pay));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) if (!dbf->pay)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) /* debug feature area which records SAN command failures and recovery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) sprintf(name, "zfcp_%s_san", dev_name(&adapter->ccw_device->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) dbf->san = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_san));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) if (!dbf->san)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) /* debug feature area which records SCSI command failures and recovery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) sprintf(name, "zfcp_%s_scsi", dev_name(&adapter->ccw_device->dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) dbf->scsi = zfcp_dbf_reg(name, dbfsize, sizeof(struct zfcp_dbf_scsi));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) if (!dbf->scsi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) adapter->dbf = dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) zfcp_dbf_unregister(dbf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) * zfcp_adapter_debug_unregister - unregisters debug feature for an adapter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) * @adapter: pointer to adapter for which debug features should be unregistered
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) void zfcp_dbf_adapter_unregister(struct zfcp_adapter *adapter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) struct zfcp_dbf *dbf = adapter->dbf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) adapter->dbf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) zfcp_dbf_unregister(dbf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862)
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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