From: Quinn Tran qutran@marvell.com
[ Upstream commit df648afa39da9c4d3af99c6c03dc3e9c7dfa99b0 ]
On session deletion, wait for app to acknowledge before moving on. This allows both app and driver to stay in sync. In addition, this gives a chance for authentication app to do any type of cleanup before moving on.
Link: https://lore.kernel.org/r/20220607044627.19563-4-njavali@marvell.com Fixes: dd30706e73b7 ("scsi: qla2xxx: edif: Add key update") Signed-off-by: Quinn Tran qutran@marvell.com Signed-off-by: Nilesh Javali njavali@marvell.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/qla2xxx/qla_def.h | 2 +- drivers/scsi/qla2xxx/qla_edif.c | 66 +++++++++++++++++++++++++------ drivers/scsi/qla2xxx/qla_init.c | 4 -- drivers/scsi/qla2xxx/qla_target.c | 35 ++++++++-------- 4 files changed, 74 insertions(+), 33 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 5f22276927dd..c2b92a6fef90 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2626,7 +2626,6 @@ typedef struct fc_port { struct { uint32_t enable:1; /* device is edif enabled/req'd */ uint32_t app_stop:2; - uint32_t app_started:1; uint32_t aes_gmac:1; uint32_t app_sess_online:1; uint32_t tx_sa_set:1; @@ -2637,6 +2636,7 @@ typedef struct fc_port { uint32_t rx_rekey_cnt; uint64_t tx_bytes; uint64_t rx_bytes; + uint8_t sess_down_acked; uint8_t auth_state; uint16_t authok:1; uint16_t rekey_cnt; diff --git a/drivers/scsi/qla2xxx/qla_edif.c b/drivers/scsi/qla2xxx/qla_edif.c index 0978551f85f5..034c43a8bb9b 100644 --- a/drivers/scsi/qla2xxx/qla_edif.c +++ b/drivers/scsi/qla2xxx/qla_edif.c @@ -257,14 +257,8 @@ qla2x00_find_fcport_by_pid(scsi_qla_host_t *vha, port_id_t *id)
f = NULL; list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) { - if ((f->flags & FCF_FCSP_DEVICE)) { - ql_dbg(ql_dbg_edif + ql_dbg_verbose, vha, 0x2058, - "Found secure fcport - nn %8phN pn %8phN portid=0x%x, 0x%x.\n", - f->node_name, f->port_name, - f->d_id.b24, id->b24); - if (f->d_id.b24 == id->b24) - return f; - } + if (f->d_id.b24 == id->b24) + return f; } return NULL; } @@ -526,7 +520,6 @@ qla_edif_app_start(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
fcport->edif.app_stop = 0; fcport->edif.app_sess_online = 0; - fcport->edif.app_started = 1;
if (fcport->scan_state != QLA_FCPORT_FOUND) continue; @@ -628,9 +621,6 @@ qla_edif_app_stop(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
fcport->send_els_logo = 1; qlt_schedule_sess_for_deletion(fcport); - - /* qla_edif_flush_sa_ctl_lists(fcport); */ - fcport->edif.app_started = 0; } }
@@ -1048,6 +1038,40 @@ qla_edif_app_getstats(scsi_qla_host_t *vha, struct bsg_job *bsg_job) return rval; }
+static int32_t +qla_edif_ack(scsi_qla_host_t *vha, struct bsg_job *bsg_job) +{ + struct fc_port *fcport; + struct aen_complete_cmd ack; + struct fc_bsg_reply *bsg_reply = bsg_job->reply; + + sg_copy_to_buffer(bsg_job->request_payload.sg_list, + bsg_job->request_payload.sg_cnt, &ack, sizeof(ack)); + + ql_dbg(ql_dbg_edif, vha, 0x70cf, + "%s: %06x event_code %x\n", + __func__, ack.port_id.b24, ack.event_code); + + fcport = qla2x00_find_fcport_by_pid(vha, &ack.port_id); + SET_DID_STATUS(bsg_reply->result, DID_OK); + + if (!fcport) { + ql_dbg(ql_dbg_edif, vha, 0x70cf, + "%s: unable to find fcport %06x \n", + __func__, ack.port_id.b24); + return 0; + } + + switch (ack.event_code) { + case VND_CMD_AUTH_STATE_SESSION_SHUTDOWN: + fcport->edif.sess_down_acked = 1; + break; + default: + break; + } + return 0; +} + int32_t qla_edif_app_mgmt(struct bsg_job *bsg_job) { @@ -1110,6 +1134,9 @@ qla_edif_app_mgmt(struct bsg_job *bsg_job) case QL_VND_SC_GET_STATS: rval = qla_edif_app_getstats(vha, bsg_job); break; + case QL_VND_SC_AEN_COMPLETE: + rval = qla_edif_ack(vha, bsg_job); + break; default: ql_dbg(ql_dbg_edif, vha, 0x911d, "%s unknown cmd=%x\n", __func__, @@ -3513,14 +3540,29 @@ int qla_edif_process_els(scsi_qla_host_t *vha, struct bsg_job *bsg_job)
void qla_edif_sess_down(struct scsi_qla_host *vha, struct fc_port *sess) { + u16 cnt = 0; + if (sess->edif.app_sess_online && DBELL_ACTIVE(vha)) { ql_dbg(ql_dbg_disc, vha, 0xf09c, "%s: sess %8phN send port_offline event\n", __func__, sess->port_name); sess->edif.app_sess_online = 0; + sess->edif.sess_down_acked = 0; qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_SESSION_SHUTDOWN, sess->d_id.b24, 0, sess); qla2x00_post_aen_work(vha, FCH_EVT_PORT_OFFLINE, sess->d_id.b24); + + while (!READ_ONCE(sess->edif.sess_down_acked) && + !test_bit(VPORT_DELETE, &vha->dpc_flags)) { + msleep(100); + cnt++; + if (cnt > 100) + break; + } + sess->edif.sess_down_acked = 0; + ql_dbg(ql_dbg_disc, vha, 0xf09c, + "%s: sess %8phN port_offline event completed\n", + __func__, sess->port_name); } }
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 4c0f76021c47..5f077f9217e5 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1480,7 +1480,6 @@ static int qla_chk_secure_login(scsi_qla_host_t *vha, fc_port_t *fcport, ql_dbg(ql_dbg_disc, vha, 0x20ef, "%s %d %8phC EDIF: post DB_AUTH: AUTH needed\n", __func__, __LINE__, fcport->port_name); - fcport->edif.app_started = 1; fcport->edif.app_sess_online = 1;
qla_edb_eventcreate(vha, VND_CMD_AUTH_STATE_NEEDED, @@ -5275,9 +5274,6 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags) INIT_LIST_HEAD(&fcport->edif.tx_sa_list); INIT_LIST_HEAD(&fcport->edif.rx_sa_list);
- if (vha->e_dbell.db_flags == EDB_ACTIVE) - fcport->edif.app_started = 1; - spin_lock_init(&fcport->edif.indx_list_lock); INIT_LIST_HEAD(&fcport->edif.edif_indx_list);
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 6dfcfd8e7337..34b85c80233f 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -988,22 +988,6 @@ void qlt_free_session_done(struct work_struct *work) sess->send_els_logo);
if (!IS_SW_RESV_ADDR(sess->d_id)) { - if (ha->flags.edif_enabled && - (!own || own->iocb.u.isp24.status_subcode == ELS_PLOGI)) { - sess->edif.authok = 0; - if (!ha->flags.host_shutting_down) { - ql_dbg(ql_dbg_edif, vha, 0x911e, - "%s wwpn %8phC calling qla2x00_release_all_sadb\n", - __func__, sess->port_name); - qla2x00_release_all_sadb(vha, sess); - } else { - ql_dbg(ql_dbg_edif, vha, 0x911e, - "%s bypassing release_all_sadb\n", - __func__); - } - qla_edif_clear_appdata(vha, sess); - qla_edif_sess_down(vha, sess); - } qla2x00_mark_device_lost(vha, sess, 0);
if (sess->send_els_logo) { @@ -1049,6 +1033,25 @@ void qlt_free_session_done(struct work_struct *work) sess->nvme_flag |= NVME_FLAG_DELETING; qla_nvme_unregister_remote_port(sess); } + + if (ha->flags.edif_enabled && + (!own || (own && + own->iocb.u.isp24.status_subcode == ELS_PLOGI))) { + sess->edif.authok = 0; + if (!ha->flags.host_shutting_down) { + ql_dbg(ql_dbg_edif, vha, 0x911e, + "%s wwpn %8phC calling qla2x00_release_all_sadb\n", + __func__, sess->port_name); + qla2x00_release_all_sadb(vha, sess); + } else { + ql_dbg(ql_dbg_edif, vha, 0x911e, + "%s bypassing release_all_sadb\n", + __func__); + } + + qla_edif_clear_appdata(vha, sess); + qla_edif_sess_down(vha, sess); + } }
/*