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Commit 9eb69aff authored by Maxim Shchetynin's avatar Maxim Shchetynin Committed by James Bottomley
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[SCSI] zfcp: handle unsolicited status notification lost 



Handle unsolicited adapter status that informs about loss of
previous unsolicited status notification(s).

Signed-off-by: default avatarMaxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: default avatarAndreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 6b7281d0

drivers/s390/scsi/zfcp_fsf.c

+35 −0
Original line number Diff line number Diff line
@@ -964,6 +964,40 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req) 
					| ZFCP_STATUS_COMMON_ERP_FAILED);

		break;



	case FSF_STATUS_READ_NOTIFICATION_LOST:

		ZFCP_LOG_NORMAL("Unsolicited status notification(s) lost: "

				"adapter %s%s%s%s%s%s%s%s%s\n",

				zfcp_get_busid_by_adapter(adapter),

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_INCOMING_ELS) ?

					", incoming ELS" : "",

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_SENSE_DATA) ?

					", sense data" : "",

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_LINK_STATUS) ?

					", link status change" : "",

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_PORT_CLOSED) ?

					", port close" : "",

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_BIT_ERROR_THRESHOLD) ?

					", bit error exception" : "",

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_ACT_UPDATED) ?

					", ACT update" : "",

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_ACT_HARDENED) ?

					", ACT hardening" : "",

				(status_buffer->status_subtype &

					FSF_STATUS_READ_SUB_FEATURE_UPDATE_ALERT) ?

					", adapter feature change" : "");



		if (status_buffer->status_subtype &

		    FSF_STATUS_READ_SUB_ACT_UPDATED)

			zfcp_erp_adapter_access_changed(adapter);

		break;



	case FSF_STATUS_READ_CFDC_UPDATED:

		ZFCP_LOG_NORMAL("CFDC has been updated on the adapter %s\n",

			      zfcp_get_busid_by_adapter(adapter));
@@ -1954,6 +1988,7 @@ zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action) 
	erp_action->fsf_req->qtcb->bottom.config.feature_selection =

			FSF_FEATURE_CFDC |

			FSF_FEATURE_LUN_SHARING |

			FSF_FEATURE_NOTIFICATION_LOST |

			FSF_FEATURE_UPDATE_ALERT;



	/* start QDIO request for this FSF request */

drivers/s390/scsi/zfcp_fsf.h

+12 −0
Original line number Diff line number Diff line
@@ -166,6 +166,7 @@ 
#define FSF_STATUS_READ_BIT_ERROR_THRESHOLD	0x00000004

#define FSF_STATUS_READ_LINK_DOWN		0x00000005

#define FSF_STATUS_READ_LINK_UP          	0x00000006

#define FSF_STATUS_READ_NOTIFICATION_LOST	0x00000009

#define FSF_STATUS_READ_CFDC_UPDATED		0x0000000A

#define FSF_STATUS_READ_CFDC_HARDENED		0x0000000B

#define FSF_STATUS_READ_FEATURE_UPDATE_ALERT	0x0000000C
@@ -179,6 +180,16 @@ 
#define FSF_STATUS_READ_SUB_FDISC_FAILED	0x00000001

#define FSF_STATUS_READ_SUB_FIRMWARE_UPDATE	0x00000002



/* status subtypes for unsolicited status notification lost */

#define FSF_STATUS_READ_SUB_INCOMING_ELS	0x00000001

#define FSF_STATUS_READ_SUB_SENSE_DATA		0x00000002

#define FSF_STATUS_READ_SUB_LINK_STATUS		0x00000004

#define FSF_STATUS_READ_SUB_PORT_CLOSED		0x00000008

#define FSF_STATUS_READ_SUB_BIT_ERROR_THRESHOLD	0x00000010

#define FSF_STATUS_READ_SUB_ACT_UPDATED		0x00000020

#define FSF_STATUS_READ_SUB_ACT_HARDENED	0x00000040

#define FSF_STATUS_READ_SUB_FEATURE_UPDATE_ALERT 0x00000080



/* status subtypes for CFDC */

#define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE	0x00000002

#define FSF_STATUS_READ_SUB_CFDC_HARDENED_ON_SE2 0x0000000F
@@ -211,6 +222,7 @@ 
/* channel features */

#define FSF_FEATURE_CFDC			0x00000002

#define FSF_FEATURE_LUN_SHARING			0x00000004

#define FSF_FEATURE_NOTIFICATION_LOST		0x00000008

#define FSF_FEATURE_HBAAPI_MANAGEMENT           0x00000010

#define FSF_FEATURE_ELS_CT_CHAINED_SBALS        0x00000020

#define FSF_FEATURE_UPDATE_ALERT		0x00000100