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Commit 75bfc283 authored by Ralph Wuerthner's avatar Ralph Wuerthner Committed by James Bottomley
Browse files

[SCSI] zfcp: evaluate plogi payload to set maxframe_size, supported_classes of rports 



Signed-off-by: default avatarRalph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: default avatarAndreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent b7a52fa7

drivers/s390/scsi/zfcp_aux.c

+21 −0
Original line number Diff line number Diff line
@@ -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

drivers/s390/scsi/zfcp_def.h

+2 −0
Original line number Diff line number Diff line
@@ -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.

drivers/s390/scsi/zfcp_erp.c

+5 −1
Original line number Diff line number Diff line
@@ -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;

drivers/s390/scsi/zfcp_ext.h

+1 −0
Original line number Diff line number Diff line
@@ -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 *);

drivers/s390/scsi/zfcp_fsf.c

+4 −3
Original line number Diff line number Diff line
@@ -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;