From d635711daa98be86d4c7fd01499c34f566b54ccb Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Fri, 10 Jun 2016 05:30:17 -0300 Subject: Linux-libre 4.6.2-gnu --- drivers/scsi/qla2xxx/qla_target.c | 73 ++++++++++++++++++++++----------------- 1 file changed, 42 insertions(+), 31 deletions(-) (limited to 'drivers/scsi/qla2xxx/qla_target.c') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index ee967becd..8a44d1541 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -641,7 +641,8 @@ void qlt_unreg_sess(struct qla_tgt_sess *sess) { struct scsi_qla_host *vha = sess->vha; - vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess); + if (sess->se_sess) + vha->hw->tgt.tgt_ops->clear_nacl_from_fcport_map(sess); if (!list_empty(&sess->del_list_entry)) list_del_init(&sess->del_list_entry); @@ -856,8 +857,12 @@ static void qlt_del_sess_work_fn(struct delayed_work *work) ql_dbg(ql_dbg_tgt_mgt, vha, 0xf004, "Timeout: sess %p about to be deleted\n", sess); - ha->tgt.tgt_ops->shutdown_sess(sess); - ha->tgt.tgt_ops->put_sess(sess); + if (sess->se_sess) { + ha->tgt.tgt_ops->shutdown_sess(sess); + ha->tgt.tgt_ops->put_sess(sess); + } else { + qlt_unreg_sess(sess); + } } else { schedule_delayed_work(&tgt->sess_del_work, sess->expires - elapsed); @@ -879,7 +884,6 @@ static struct qla_tgt_sess *qlt_create_sess( struct qla_hw_data *ha = vha->hw; struct qla_tgt_sess *sess; unsigned long flags; - unsigned char be_sid[3]; /* Check to avoid double sessions */ spin_lock_irqsave(&ha->tgt.sess_lock, flags); @@ -905,6 +909,14 @@ static struct qla_tgt_sess *qlt_create_sess( if (sess->deleted) qlt_undelete_sess(sess); + if (!sess->se_sess) { + if (ha->tgt.tgt_ops->check_initiator_node_acl(vha, + &sess->port_name[0], sess) < 0) { + spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); + return NULL; + } + } + kref_get(&sess->se_sess->sess_kref); ha->tgt.tgt_ops->update_sess(sess, fcport->d_id, fcport->loop_id, (fcport->flags & FCF_CONF_COMP_SUPPORTED)); @@ -948,26 +960,6 @@ static struct qla_tgt_sess *qlt_create_sess( "Adding sess %p to tgt %p via ->check_initiator_node_acl()\n", sess, vha->vha_tgt.qla_tgt); - be_sid[0] = sess->s_id.b.domain; - be_sid[1] = sess->s_id.b.area; - be_sid[2] = sess->s_id.b.al_pa; - /* - * Determine if this fc_port->port_name is allowed to access - * target mode using explict NodeACLs+MappedLUNs, or using - * TPG demo mode. If this is successful a target mode FC nexus - * is created. - */ - if (ha->tgt.tgt_ops->check_initiator_node_acl(vha, - &fcport->port_name[0], sess, &be_sid[0], fcport->loop_id) < 0) { - kfree(sess); - return NULL; - } - /* - * Take an extra reference to ->sess_kref here to handle qla_tgt_sess - * access across ->tgt.sess_lock reaquire. - */ - kref_get(&sess->se_sess->sess_kref); - sess->conf_compl_supported = (fcport->flags & FCF_CONF_COMP_SUPPORTED); BUILD_BUG_ON(sizeof(sess->port_name) != sizeof(fcport->port_name)); memcpy(sess->port_name, fcport->port_name, sizeof(sess->port_name)); @@ -985,6 +977,23 @@ static struct qla_tgt_sess *qlt_create_sess( fcport->loop_id, sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa, sess->conf_compl_supported ? "" : "not "); + /* + * Determine if this fc_port->port_name is allowed to access + * target mode using explict NodeACLs+MappedLUNs, or using + * TPG demo mode. If this is successful a target mode FC nexus + * is created. + */ + if (ha->tgt.tgt_ops->check_initiator_node_acl(vha, + &fcport->port_name[0], sess) < 0) { + return NULL; + } else { + /* + * Take an extra reference to ->sess_kref here to handle qla_tgt_sess + * access across ->tgt.sess_lock reaquire. + */ + kref_get(&sess->se_sess->sess_kref); + } + return sess; } @@ -1872,15 +1881,17 @@ static int qlt_check_reserve_free_req(struct scsi_qla_host *vha, else vha->req->cnt = vha->req->length - (vha->req->ring_index - cnt); - } - if (unlikely(vha->req->cnt < (req_cnt + 2))) { - ql_dbg(ql_dbg_io, vha, 0x305a, - "qla_target(%d): There is no room in the request ring: vha->req->ring_index=%d, vha->req->cnt=%d, req_cnt=%d Req-out=%d Req-in=%d Req-Length=%d\n", - vha->vp_idx, vha->req->ring_index, - vha->req->cnt, req_cnt, cnt, cnt_in, vha->req->length); - return -EAGAIN; + if (unlikely(vha->req->cnt < (req_cnt + 2))) { + ql_dbg(ql_dbg_io, vha, 0x305a, + "qla_target(%d): There is no room in the request ring: vha->req->ring_index=%d, vha->req->cnt=%d, req_cnt=%d Req-out=%d Req-in=%d Req-Length=%d\n", + vha->vp_idx, vha->req->ring_index, + vha->req->cnt, req_cnt, cnt, cnt_in, + vha->req->length); + return -EAGAIN; + } } + vha->req->cnt -= req_cnt; return 0; -- cgit v1.2.3-54-g00ecf