diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h index f1f6c740bdcd..feeb1666227f 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.h +++ b/drivers/scsi/qla2xxx/qla_dbg.h @@ -383,5 +383,5 @@ ql_mask_match(uint level) if (ql2xextended_error_logging == 1) ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK; - return (level & ql2xextended_error_logging) == level; + return level && ((level & ql2xextended_error_logging) == level); } diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c index fffdf87d823a..0d84dad2612c 100644 --- a/drivers/scsi/qla2xxx/qla_edif.c +++ b/drivers/scsi/qla2xxx/qla_edif.c @@ -52,6 +52,31 @@ const char *sc_to_str(uint16_t cmd) return "unknown"; } +static struct edb_node *qla_edb_getnext(scsi_qla_host_t *vha) +{ + unsigned long flags; + struct edb_node *edbnode = NULL; + + spin_lock_irqsave(&vha->e_dbell.db_lock, flags); + + /* db nodes are fifo - no qualifications done */ + if (!list_empty(&vha->e_dbell.head)) { + edbnode = list_first_entry(&vha->e_dbell.head, + struct edb_node, list); + list_del_init(&edbnode->list); + } + + spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); + + return edbnode; +} + +static void qla_edb_node_free(scsi_qla_host_t *vha, struct edb_node *node) +{ + list_del_init(&node->list); + kfree(node); +} + static struct edif_list_entry *qla_edif_list_find_sa_index(fc_port_t *fcport, uint16_t handle) { @@ -1071,6 +1096,130 @@ qla_edif_ack(scsi_qla_host_t *vha, struct bsg_job *bsg_job) return 0; } +static int qla_edif_consume_dbell(scsi_qla_host_t *vha, struct bsg_job *bsg_job) +{ + struct fc_bsg_reply *bsg_reply = bsg_job->reply; + u32 sg_skip, reply_payload_len; + bool keep; + struct edb_node *dbnode = NULL; + struct edif_app_dbell ap; + int dat_size = 0; + + sg_skip = 0; + reply_payload_len = bsg_job->reply_payload.payload_len; + + while ((reply_payload_len - sg_skip) >= sizeof(struct edb_node)) { + dbnode = qla_edb_getnext(vha); + if (dbnode) { + keep = true; + dat_size = 0; + ap.event_code = dbnode->ntype; + switch (dbnode->ntype) { + case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN: + case VND_CMD_AUTH_STATE_NEEDED: + ap.port_id = dbnode->u.plogi_did; + dat_size += sizeof(ap.port_id); + break; + case VND_CMD_AUTH_STATE_ELS_RCVD: + ap.port_id = dbnode->u.els_sid; + dat_size += sizeof(ap.port_id); + break; + case VND_CMD_AUTH_STATE_SAUPDATE_COMPL: + ap.port_id = dbnode->u.sa_aen.port_id; + memcpy(&ap.event_data, &dbnode->u, + sizeof(struct edif_sa_update_aen)); + dat_size += sizeof(struct edif_sa_update_aen); + break; + default: + keep = false; + ql_log(ql_log_warn, vha, 0x09102, + "%s unknown DB type=%d %p\n", + __func__, dbnode->ntype, dbnode); + break; + } + ap.event_data_size = dat_size; + /* 8 = sizeof(ap.event_code + ap.event_data_size) */ + dat_size += 8; + if (keep) + sg_skip += sg_copy_buffer(bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, + &ap, dat_size, sg_skip, false); + + ql_dbg(ql_dbg_edif, vha, 0x09102, + "%s Doorbell consumed : type=%d %p\n", + __func__, dbnode->ntype, dbnode); + + kfree(dbnode); + } else { + break; + } + } + + SET_DID_STATUS(bsg_reply->result, DID_OK); + bsg_reply->reply_payload_rcv_len = sg_skip; + bsg_job->reply_len = sizeof(struct fc_bsg_reply); + + return 0; +} + +static void __qla_edif_dbell_bsg_done(scsi_qla_host_t *vha, struct bsg_job *bsg_job, + u32 delay) +{ + struct fc_bsg_reply *bsg_reply = bsg_job->reply; + + /* small sleep for doorbell events to accumulate */ + if (delay) + msleep(delay); + + qla_edif_consume_dbell(vha, bsg_job); + + bsg_job_done(bsg_job, bsg_reply->result, bsg_reply->reply_payload_rcv_len); +} + +static void qla_edif_dbell_bsg_done(scsi_qla_host_t *vha) +{ + unsigned long flags; + struct bsg_job *prev_bsg_job = NULL; + + spin_lock_irqsave(&vha->e_dbell.db_lock, flags); + if (vha->e_dbell.dbell_bsg_job) { + prev_bsg_job = vha->e_dbell.dbell_bsg_job; + vha->e_dbell.dbell_bsg_job = NULL; + } + spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); + + if (prev_bsg_job) + __qla_edif_dbell_bsg_done(vha, prev_bsg_job, 0); +} + +static int +qla_edif_dbell_bsg(scsi_qla_host_t *vha, struct bsg_job *bsg_job) +{ + unsigned long flags; + bool return_bsg = false; + + /* flush previous dbell bsg */ + qla_edif_dbell_bsg_done(vha); + + spin_lock_irqsave(&vha->e_dbell.db_lock, flags); + if (list_empty(&vha->e_dbell.head) && DBELL_ACTIVE(vha)) { + /* + * when the next db event happens, bsg_job will return. + * Otherwise, timer will return it. + */ + vha->e_dbell.dbell_bsg_job = bsg_job; + vha->e_dbell.bsg_expire = jiffies + 10 * HZ; + } else { + return_bsg = true; + } + spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); + + if (return_bsg) + __qla_edif_dbell_bsg_done(vha, bsg_job, 1); + + return 0; +} + int32_t qla_edif_app_mgmt(struct bsg_job *bsg_job) { @@ -1082,8 +1231,13 @@ qla_edif_app_mgmt(struct bsg_job *bsg_job) bool done = true; int32_t rval = 0; uint32_t vnd_sc = bsg_request->rqst_data.h_vendor.vendor_cmd[1]; + u32 level = ql_dbg_edif; - ql_dbg(ql_dbg_edif, vha, 0x911d, "%s vnd subcmd=%x\n", + /* doorbell is high traffic */ + if (vnd_sc == QL_VND_SC_READ_DBELL) + level = 0; + + ql_dbg(level, vha, 0x911d, "%s vnd subcmd=%x\n", __func__, vnd_sc); sg_copy_to_buffer(bsg_job->request_payload.sg_list, @@ -1092,7 +1246,7 @@ qla_edif_app_mgmt(struct bsg_job *bsg_job) if (!vha->hw->flags.edif_enabled || test_bit(VPORT_DELETE, &vha->dpc_flags)) { - ql_dbg(ql_dbg_edif, vha, 0x911d, + ql_dbg(level, vha, 0x911d, "%s edif not enabled or vp delete. bsg ptr done %p. dpc_flags %lx\n", __func__, bsg_job, vha->dpc_flags); @@ -1101,7 +1255,7 @@ qla_edif_app_mgmt(struct bsg_job *bsg_job) } if (!qla_edif_app_check(vha, appcheck)) { - ql_dbg(ql_dbg_edif, vha, 0x911d, + ql_dbg(level, vha, 0x911d, "%s app checked failed.\n", __func__); @@ -1136,6 +1290,10 @@ qla_edif_app_mgmt(struct bsg_job *bsg_job) case QL_VND_SC_AEN_COMPLETE: rval = qla_edif_ack(vha, bsg_job); break; + case QL_VND_SC_READ_DBELL: + rval = qla_edif_dbell_bsg(vha, bsg_job); + done = false; + break; default: ql_dbg(ql_dbg_edif, vha, 0x911d, "%s unknown cmd=%x\n", __func__, @@ -1147,7 +1305,7 @@ qla_edif_app_mgmt(struct bsg_job *bsg_job) done: if (done) { - ql_dbg(ql_dbg_user, vha, 0x7009, + ql_dbg(level, vha, 0x7009, "%s: %d bsg ptr done %p\n", __func__, __LINE__, bsg_job); bsg_job_done(bsg_job, bsg_reply->result, bsg_reply->reply_payload_rcv_len); @@ -1859,30 +2017,6 @@ qla_edb_init(scsi_qla_host_t *vha) /* initialize lock which protects doorbell & init list */ spin_lock_init(&vha->e_dbell.db_lock); INIT_LIST_HEAD(&vha->e_dbell.head); - - /* create and initialize doorbell */ - init_completion(&vha->e_dbell.dbell); -} - -static void -qla_edb_node_free(scsi_qla_host_t *vha, struct edb_node *node) -{ - /* - * releases the space held by this edb node entry - * this function does _not_ free the edb node itself - * NB: the edb node entry passed should not be on any list - * - * currently for doorbell there's no additional cleanup - * needed, but here as a placeholder for furture use. - */ - - if (!node) { - ql_dbg(ql_dbg_edif, vha, 0x09122, - "%s error - no valid node passed\n", __func__); - return; - } - - node->ntype = N_UNDEF; } static void qla_edb_clear(scsi_qla_host_t *vha, port_id_t portid) @@ -1929,11 +2063,8 @@ static void qla_edb_clear(scsi_qla_host_t *vha, port_id_t portid) } spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); - list_for_each_entry_safe(e, tmp, &edb_list, list) { + list_for_each_entry_safe(e, tmp, &edb_list, list) qla_edb_node_free(vha, e); - list_del_init(&e->list); - kfree(e); - } } /* function called when app is stopping */ @@ -1961,14 +2092,10 @@ qla_edb_stop(scsi_qla_host_t *vha) "%s freeing edb_node type=%x\n", __func__, node->ntype); qla_edb_node_free(vha, node); - list_del(&node->list); - - kfree(node); } spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); - /* wake up doorbell waiters - they'll be dismissed with error code */ - complete_all(&vha->e_dbell.dbell); + qla_edif_dbell_bsg_done(vha); } static struct edb_node * @@ -2006,9 +2133,6 @@ qla_edb_node_add(scsi_qla_host_t *vha, struct edb_node *ptr) list_add_tail(&ptr->list, &vha->e_dbell.head); spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); - /* ring doorbell for waiters */ - complete(&vha->e_dbell.dbell); - return true; } @@ -2077,43 +2201,24 @@ qla_edb_eventcreate(scsi_qla_host_t *vha, uint32_t dbtype, default: ql_dbg(ql_dbg_edif, vha, 0x09102, "%s unknown type: %x\n", __func__, dbtype); - qla_edb_node_free(vha, edbnode); kfree(edbnode); edbnode = NULL; break; } - if (edbnode && (!qla_edb_node_add(vha, edbnode))) { + if (edbnode) { + if (!qla_edb_node_add(vha, edbnode)) { + ql_dbg(ql_dbg_edif, vha, 0x09102, + "%s unable to add dbnode\n", __func__); + kfree(edbnode); + return; + } ql_dbg(ql_dbg_edif, vha, 0x09102, - "%s unable to add dbnode\n", __func__); - qla_edb_node_free(vha, edbnode); - kfree(edbnode); - return; + "%s Doorbell produced : type=%d %p\n", __func__, dbtype, edbnode); + qla_edif_dbell_bsg_done(vha); + if (fcport) + fcport->edif.auth_state = dbtype; } - if (edbnode && fcport) - fcport->edif.auth_state = dbtype; - ql_dbg(ql_dbg_edif, vha, 0x09102, - "%s Doorbell produced : type=%d %p\n", __func__, dbtype, edbnode); -} - -static struct edb_node * -qla_edb_getnext(scsi_qla_host_t *vha) -{ - unsigned long flags; - struct edb_node *edbnode = NULL; - - spin_lock_irqsave(&vha->e_dbell.db_lock, flags); - - /* db nodes are fifo - no qualifications done */ - if (!list_empty(&vha->e_dbell.head)) { - edbnode = list_first_entry(&vha->e_dbell.head, - struct edb_node, list); - list_del(&edbnode->list); - } - - spin_unlock_irqrestore(&vha->e_dbell.db_lock, flags); - - return edbnode; } void @@ -2141,6 +2246,9 @@ qla_edif_timer(scsi_qla_host_t *vha) ha->edif_post_stop_cnt_down = 60; } } + + if (vha->e_dbell.dbell_bsg_job && time_after_eq(jiffies, vha->e_dbell.bsg_expire)) + qla_edif_dbell_bsg_done(vha); } /* @@ -2208,7 +2316,6 @@ edif_doorbell_show(struct device *dev, struct device_attribute *attr, "%s Doorbell consumed : type=%d %p\n", __func__, dbnode->ntype, dbnode); /* we're done with the db node, so free it up */ - qla_edb_node_free(vha, dbnode); kfree(dbnode); } else { break; diff --git a/drivers/scsi/qla2xxx/qla_edif.h b/drivers/scsi/qla2xxx/qla_edif.h index a965ca8e47ce..3561e22b8f0f 100644 --- a/drivers/scsi/qla2xxx/qla_edif.h +++ b/drivers/scsi/qla2xxx/qla_edif.h @@ -51,7 +51,8 @@ struct edif_dbell { enum db_flags_t db_flags; spinlock_t db_lock; struct list_head head; - struct completion dbell; + struct bsg_job *dbell_bsg_job; + unsigned long bsg_expire; }; #define SA_UPDATE_IOCB_TYPE 0x71 /* Security Association Update IOCB entry */ diff --git a/drivers/scsi/qla2xxx/qla_edif_bsg.h b/drivers/scsi/qla2xxx/qla_edif_bsg.h index 301523e4f483..110843b13767 100644 --- a/drivers/scsi/qla2xxx/qla_edif_bsg.h +++ b/drivers/scsi/qla2xxx/qla_edif_bsg.h @@ -183,6 +183,20 @@ struct qla_sa_update_frame { #define QL_VND_SC_GET_FCINFO 7 #define QL_VND_SC_GET_STATS 8 #define QL_VND_SC_AEN_COMPLETE 9 +#define QL_VND_SC_READ_DBELL 10 + +/* + * bsg caller to provide empty buffer for doorbell events. + * + * sg_io_v4.din_xferp = empty buffer for door bell events + * sg_io_v4.dout_xferp = struct edif_read_dbell *buf + */ +struct edif_read_dbell { + struct app_id app_info; + uint8_t version; + uint8_t pad[VND_CMD_PAD_SIZE]; + uint8_t reserved[VND_CMD_APP_RESERVED_SIZE]; +}; /* Application interface data structure for rtn data */