diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/tcm_qla2xxx.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/tcm_qla2xxx.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index d8211ccc413a..3d74f2f39ae1 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -1457,6 +1457,78 @@ static int tcm_qla2xxx_check_initiator_node_acl( return 0; } +static void tcm_qla2xxx_update_sess(struct qla_tgt_sess *sess, port_id_t s_id, + uint16_t loop_id, bool conf_compl_supported) +{ + struct qla_tgt *tgt = sess->tgt; + struct qla_hw_data *ha = tgt->ha; + struct tcm_qla2xxx_lport *lport = ha->tgt.target_lport_ptr; + struct se_node_acl *se_nacl = sess->se_sess->se_node_acl; + struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl, + struct tcm_qla2xxx_nacl, se_node_acl); + u32 key; + + + if (sess->loop_id != loop_id || sess->s_id.b24 != s_id.b24) + pr_info("Updating session %p from port %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n", + sess, + sess->port_name[0], sess->port_name[1], + sess->port_name[2], sess->port_name[3], + sess->port_name[4], sess->port_name[5], + sess->port_name[6], sess->port_name[7], + sess->loop_id, loop_id, + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa, + s_id.b.domain, s_id.b.area, s_id.b.al_pa); + + if (sess->loop_id != loop_id) { + /* + * Because we can shuffle loop IDs around and we + * update different sessions non-atomically, we might + * have overwritten this session's old loop ID + * already, and we might end up overwriting some other + * session that will be updated later. So we have to + * be extra careful and we can't warn about those things... + */ + if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl) + lport->lport_loopid_map[sess->loop_id].se_nacl = NULL; + + lport->lport_loopid_map[loop_id].se_nacl = se_nacl; + + sess->loop_id = loop_id; + } + + if (sess->s_id.b24 != s_id.b24) { + key = (((u32) sess->s_id.b.domain << 16) | + ((u32) sess->s_id.b.area << 8) | + ((u32) sess->s_id.b.al_pa)); + + if (btree_lookup32(&lport->lport_fcport_map, key)) + WARN(btree_remove32(&lport->lport_fcport_map, key) != se_nacl, + "Found wrong se_nacl when updating s_id %x:%x:%x\n", + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); + else + WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n", + sess->s_id.b.domain, sess->s_id.b.area, sess->s_id.b.al_pa); + + key = (((u32) s_id.b.domain << 16) | + ((u32) s_id.b.area << 8) | + ((u32) s_id.b.al_pa)); + + if (btree_lookup32(&lport->lport_fcport_map, key)) { + WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n", + s_id.b.domain, s_id.b.area, s_id.b.al_pa); + btree_update32(&lport->lport_fcport_map, key, se_nacl); + } else { + btree_insert32(&lport->lport_fcport_map, key, se_nacl, GFP_ATOMIC); + } + + sess->s_id = s_id; + nacl->nport_id = key; + } + + sess->conf_compl_supported = conf_compl_supported; +} + /* * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path. */ @@ -1467,6 +1539,7 @@ static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { .free_cmd = tcm_qla2xxx_free_cmd, .free_mcmd = tcm_qla2xxx_free_mcmd, .free_session = tcm_qla2xxx_free_session, + .update_sess = tcm_qla2xxx_update_sess, .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl, .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id, .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id, |