From 75bfc2837bbcc329193d51e8b7115184b78beae0 Mon Sep 17 00:00:00 2001 From: Ralph Wuerthner Date: Mon, 22 May 2006 18:24:33 +0200 Subject: [PATCH] [SCSI] zfcp: evaluate plogi payload to set maxframe_size, supported_classes of rports Signed-off-by: Ralph Wuerthner Signed-off-by: Andreas Herrmann Signed-off-by: James Bottomley --- drivers/s390/scsi/zfcp_aux.c | 21 +++++++++++++++++++++ drivers/s390/scsi/zfcp_def.h | 2 ++ drivers/s390/scsi/zfcp_erp.c | 6 +++++- drivers/s390/scsi/zfcp_ext.h | 1 + drivers/s390/scsi/zfcp_fsf.c | 7 ++++--- drivers/s390/scsi/zfcp_scsi.c | 1 + 6 files changed, 34 insertions(+), 4 deletions(-) diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index bdaad5535e2..9cd789b8acd 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -1748,4 +1748,25 @@ zfcp_handle_els_rjt(u32 sq, struct zfcp_ls_rjt_par *rjt_par) return ret; } +/** + * zfcp_plogi_evaluate - evaluate PLOGI playload and copy important fields + * into zfcp_port structure + * @port: zfcp_port structure + * @plogi: plogi payload + */ +void +zfcp_plogi_evaluate(struct zfcp_port *port, struct fsf_plogi *plogi) +{ + port->maxframe_size = plogi->serv_param.common_serv_param[7] | + ((plogi->serv_param.common_serv_param[6] & 0x0F) << 8); + if (plogi->serv_param.class1_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS1; + if (plogi->serv_param.class2_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS2; + if (plogi->serv_param.class3_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS3; + if (plogi->serv_param.class4_serv_param[0] & 0x80) + port->supported_classes |= FC_COS_CLASS4; +} + #undef ZFCP_LOG_AREA diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h index e93272f1882..a67d608388a 100644 --- a/drivers/s390/scsi/zfcp_def.h +++ b/drivers/s390/scsi/zfcp_def.h @@ -959,6 +959,8 @@ struct zfcp_port { u32 handle; /* handle assigned by FSF */ struct zfcp_erp_action erp_action; /* pending error recovery */ atomic_t erp_counter; + u32 maxframe_size; + u32 supported_classes; }; /* the struct device sysfs_device must be at the beginning of this structure. diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index ce852c0de12..05c47f6ca92 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -3257,8 +3257,12 @@ zfcp_erp_action_cleanup(int action, struct zfcp_adapter *adapter, "(adapter %s, wwpn=0x%016Lx)\n", zfcp_get_busid_by_port(port), port->wwpn); - else + else { scsi_flush_work(adapter->scsi_host); + port->rport->maxframe_size = port->maxframe_size; + port->rport->supported_classes = + port->supported_classes; + } } zfcp_port_put(port); break; diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h index 6be2bb71c73..ab38b8ce27a 100644 --- a/drivers/s390/scsi/zfcp_ext.h +++ b/drivers/s390/scsi/zfcp_ext.h @@ -115,6 +115,7 @@ extern int zfcp_nameserver_enqueue(struct zfcp_adapter *); extern int zfcp_ns_gid_pn_request(struct zfcp_erp_action *); extern int zfcp_check_ct_response(struct ct_hdr *); extern int zfcp_handle_els_rjt(u32, struct zfcp_ls_rjt_par *); +extern void zfcp_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *); /******************************* SCSI ****************************************/ extern int zfcp_adapter_scsi_register(struct zfcp_adapter *); diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 55785acf870..6335f922918 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -2560,8 +2560,7 @@ zfcp_fsf_open_port_handler(struct zfcp_fsf_req *fsf_req) if (!atomic_test_mask(ZFCP_STATUS_PORT_NO_WWPN, &port->status)) { if (fsf_req->qtcb->bottom.support.els1_length < - ((((unsigned long) &plogi->serv_param.wwpn) - - ((unsigned long) plogi)) + sizeof (u64))) { + sizeof (struct fsf_plogi)) { ZFCP_LOG_INFO( "warning: insufficient length of " "PLOGI payload (%i)\n", @@ -2580,8 +2579,10 @@ zfcp_fsf_open_port_handler(struct zfcp_fsf_req *fsf_req) atomic_clear_mask( ZFCP_STATUS_PORT_DID_DID, &port->status); - } else + } else { port->wwnn = plogi->serv_param.wwnn; + zfcp_plogi_evaluate(port, plogi); + } } } break; diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index f198814196a..30e87197f5f 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -805,6 +805,7 @@ struct fc_function_template zfcp_transport_functions = { .show_starget_port_name = 1, .show_starget_node_name = 1, .show_rport_supported_classes = 1, + .show_rport_maxframe_size = 1, .show_host_node_name = 1, .show_host_port_name = 1, .show_host_permanent_port_name = 1, -- 2.11.4.GIT