From sacadmin Sun Jun 3 23:52:02 2007 Received: from sac.sfbay.sun.com (localhost [127.0.0.1]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l546q2hb015118; Sun, 3 Jun 2007 23:52:02 -0700 (PDT) Received: (from eh146360@localhost) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8/Submit) id l546q2op015114; Sun, 3 Jun 2007 23:52:02 -0700 (PDT) Date: Sun, 3 Jun 2007 23:52:02 -0700 (PDT) From: En-Hua Cecilia Hu Message-Id: <200706040652.l546q2op015114@sac.sfbay.sun.com> To: PSARC-record@sac.sfbay.sun.com Subject: New subclass for DR class events [PSARC/2007/326 FastTrack timeout 06/10/2007] Status: RO Content-Length: 543 Template Version: @(#)sac_nextcase 1.61 05/24/07 SMI This information is Copyright 2007 Sun Microsystems 1. Introduction 1.1. Project/Component Working Name: New subclass for DR class events 1.2. Name of Document Author/Supplier: Author: Dolpher Du/River Li 1.3 Date of This Document: 03 June, 2007 4. Technical Description See the case directory for more detail 6. Resources and Schedule 6.4. Steering Committee requested information 6.4.1. Consolidation C-team Name: ON 6.5. ARC review type: FastTrack From sacadmin Mon Jun 4 00:18:02 2007 Received: from sineb-mail-2.sun.com ([192.18.19.7]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l547I1XY016362 for ; Mon, 4 Jun 2007 00:18:02 -0700 (PDT) Received: from fe-apac-06.sun.com (fe-apac-06.sun.com [192.18.19.177] (may be forged)) by sineb-mail-2.sun.com (8.13.6+Sun/8.12.9) with ESMTP id l547GXiv003813 for ; Mon, 4 Jun 2007 07:16:33 GMT Received: from conversion-daemon.mail-apac.sun.com by mail-apac.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) id <0JJ300L01O2G7900@mail-apac.sun.com> (original mail from Cecilia.Hu@Sun.COM) for psarc@sac.sfbay.sun.com; Mon, 04 Jun 2007 15:16:33 +0800 (SGT) Received: from [129.158.218.120] by mail-apac.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPSA id <0JJ3003EJO7F1UV8@mail-apac.sun.com> for psarc@sac.sfbay.sun.com; Mon, 04 Jun 2007 15:16:28 +0800 (SGT) Date: Mon, 04 Jun 2007 15:16:32 +0800 From: Cecilia Hu Subject: PSARC 2007/326 New subclass for DR class events Sender: Cecilia.Hu@Sun.COM To: psarc@sac.sfbay.sun.com Cc: yongfeng du , Ming Li , "Dana H. Myers" Reply-to: Cecilia.Hu@Sun.COM Message-id: <4663BC50.2020900@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT User-Agent: Thunderbird 1.5.0.8 (X11/20061204) Status: RO Content-Length: 3348 I'm sponsoring this fast-track for Dolpher Du and River Li. The requested release binding is micro/patch, timer is set to 06/11/2007. This project proposes to introduce a new subclass to EC_DR event class so as to describe target status change. -Cecilia 1. Introduction 1.1. Project/Component Working Name: New subclass for DR class events 1.2. Name of Document Author/Supplier: Author: Dolpher Du/River Li 1.3. Date of This Document: 1 June, 2007 4. Technical Description: 1) Background ============= The sfx-4500 disk monitor, which is used to monitor the status of disk, requires the mpt HBA driver to generate notification events when sata drives are removed or inserted. The mpt HBA controller hardware provides asynchronous message mechanism to notify HBA driver about target hotplug. When mpt HBA driver receives such messages, it should generate EC_DR events and reports them to upper level consumers. 2) Problem ========== The EC_DR event class was defined in PSARC 2000/189. It contains two subclasses: ESC_DR_AP_STATE_CHANGE and ESC_DR_REQ, both of which are designed to reflect the status change of dynamic attachment point. The dynamic attachment point defined in cfgadm(1M) is a lun based conception for SCSI, not target based. For the SCSI/SAS HBAs that are target status sensitive, those two type of events are not feasible since the host HBA driver can't get the notification of single lun online or offline from hardware if the target keeps connection. In other respect, the existing event subclasses are not convenient for consumers that only care for target status change. 3) Solution =========== We propose a new subclass belonging to the EC_DR class. It is used to describe target status change, and defined as following: ESC_DR_TARGET_STATE_CHANGE (per target state change event) Description - Indicate a cable connection state change Commitment Level - "Consolidation Private" Event Class - EC_DR Event Sub-Class - ESC_DR_TARGET_STATE_CHANGE Event Publisher - SUNW:kern: Attribute Name - TARGET_ID Attribute Type - [SE_DATA_TYPE_STRING] Attribute Value - Attribute Name - HINT Attribute Type - [SE_DATA_TYPE_STRING] Attribute Value - "" | "insert" | "remove" | ... For example, a sata disk is connected to LSI SAS controller, and marked as target 5. The physical path of the LSI SAS controller is /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1. When the sata disk is removed physically, mpt driver will generate the ESC_DR_TARGET_STATE_CHANGE event. Its TARGET_ID payload is /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1:5, and HINT is "remove". This event will be first used by mpt driver, but the concept of target id is not limited to SCSI, it's common enough for other HBA drivers to use. 5. Reference Documents: PSARC 2000/189 PSARC/1998/424 6. Resources and Schedule: 6.4. Product Approval Committee requested information: 6.4.1. Consolidation or Component Name: ON 6.5. ARC review type: FastTrack From sacadmin Wed Jun 6 13:51:34 2007 Received: from sfbaymail1sca.SFBay.Sun.COM (sfbaymail1sca.SFBay.Sun.COM [129.145.154.35]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l56KpY5o021334 for ; Wed, 6 Jun 2007 13:51:34 -0700 (PDT) Received: from sca-es-mail-1.sun.com (sca-es-mail-1.Sun.COM [192.18.43.132]) by sfbaymail1sca.SFBay.Sun.COM (8.13.6+Sun/8.13.6/ENSMAIL,v2.2) with ESMTP id l56Ko9dW025504 for ; Wed, 6 Jun 2007 13:50:09 -0700 (PDT) Received: from fe-sfbay-09.sun.com ([192.18.43.129]) by sca-es-mail-1.sun.com (8.13.7+Sun/8.12.9) with ESMTP id l56Ko3qn000429 for ; Wed, 6 Jun 2007 13:50:03 -0700 (PDT) Received: from conversion-daemon.fe-sfbay-09.sun.com by fe-sfbay-09.sun.com (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) id <0JJ800201EYP0W00@fe-sfbay-09.sun.com> (original mail from Huay-Yong.Wang@Sun.COM) for psarc@sac.sfbay.sun.com; Wed, 06 Jun 2007 13:50:03 -0700 (PDT) Received: from [129.153.85.36] by fe-sfbay-09.sun.com (Sun Java System Messaging Server 6.2-8.04 (built Feb 28 2007)) with ESMTPSA id <0JJ8008C6F7EXTH0@fe-sfbay-09.sun.com> for psarc@sac.sfbay.sun.com; Wed, 06 Jun 2007 13:50:03 -0700 (PDT) Date: Wed, 06 Jun 2007 13:50:02 -0700 From: Huay-Yong.Wang@Sun.COM Subject: Re: PSARC 2007/326 New subclass for DR class events In-reply-to: <4663BC50.2020900@sun.com> Sender: Huay-Yong.Wang@Sun.COM To: Cecilia.Hu@Sun.COM, yongfeng du , Ming Li Cc: psarc@sac.sfbay.sun.com, "Dana H. Myers" Message-id: <46671DFA.4040108@Sun.COM> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en References: <4663BC50.2020900@sun.com> User-Agent: Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.7) Gecko/20070109 Status: RO Content-Length: 4366 Will this effort address the issue in the PICL framework where the SCSI/SAS disk targets picl status are not updated upon hot insert/removal? Please see CR 6526184. Regarding the PICL framework, currently the generic PICL syseventd module filter out all but 3 sysevents. The 3 events delivered to PICL are: - PICLEVENT_SYSEVENT_DEVICE_ADDED (EC_DEVFS, ESC_DEVFS_DEVI_ADD) - PICLEVENT_SYSEVENT_DEVICE_REMOVED (EC_DEVFS, ESC_DEVFS_DEVI_REMOVE) - PICLEVENT_DR_AP_STATE_CHANGE (EC_DR, ESC_DR_AP_STATE_CHANGE) For this case, I see that you are proposing a set of new EC_DR subclass. I want to make sure that this proposal is generic enough to address the PICL update for SAS/mpt hot insert/removal. (preferably without the need to change PICL framework code) Cecilia Hu wrote: > I'm sponsoring this fast-track for Dolpher Du and River Li. > The requested release binding is micro/patch, timer is set > to 06/11/2007. > > This project proposes to introduce a new subclass to EC_DR > event class so as to describe target status change. > > -Cecilia > > > > 1. Introduction > 1.1. Project/Component Working Name: > New subclass for DR class events > > 1.2. Name of Document Author/Supplier: > Author: Dolpher Du/River Li > > 1.3. Date of This Document: > 1 June, 2007 > > 4. Technical Description: > 1) Background > ============= > > The sfx-4500 disk monitor, which is used to monitor the status of > disk, requires the mpt HBA driver to generate notification events > when sata drives are removed or inserted. The mpt HBA controller > hardware provides asynchronous message mechanism to notify HBA > driver about target hotplug. When mpt HBA driver receives such > messages, it should generate EC_DR events and reports them to upper > level consumers. > > 2) Problem > ========== > > The EC_DR event class was defined in PSARC 2000/189. It contains > two subclasses: ESC_DR_AP_STATE_CHANGE and ESC_DR_REQ, both of > which are designed to reflect the status change of dynamic > attachment point. The dynamic attachment point defined in > cfgadm(1M) is a lun based conception for SCSI, not target > based. For the SCSI/SAS HBAs that are target status sensitive, > those two type of events are not feasible since the host HBA driver > can't get the notification of single lun online or offline from > hardware if the target keeps connection. In other respect, the > existing event subclasses are not convenient for consumers that > only care for target status change. > > 3) Solution > =========== > > We propose a new subclass belonging to the EC_DR class. It is used > to describe target status change, and defined as following: > > ESC_DR_TARGET_STATE_CHANGE (per target state change event) > > Description - Indicate a cable connection state change > Commitment Level - "Consolidation Private" > > Event Class - EC_DR > Event Sub-Class - ESC_DR_TARGET_STATE_CHANGE > Event Publisher - SUNW:kern: > Attribute Name - TARGET_ID > Attribute Type - [SE_DATA_TYPE_STRING] > Attribute Value - > Attribute Name - HINT > Attribute Type - [SE_DATA_TYPE_STRING] > Attribute Value - "" | "insert" | "remove" | ... > > For example, a sata disk is connected to LSI SAS controller, and > marked as target 5. The physical path of the LSI SAS controller is > /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1. When the sata > disk is removed physically, mpt driver will generate the > ESC_DR_TARGET_STATE_CHANGE event. Its TARGET_ID payload is > /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1:5, and HINT is > "remove". > > This event will be first used by mpt driver, but the concept of > target id is not limited to SCSI, it's common enough for other HBA > drivers to use. > > 5. Reference Documents: > PSARC 2000/189 > PSARC/1998/424 > > 6. Resources and Schedule: > 6.4. Product Approval Committee requested information: > 6.4.1. Consolidation or Component Name: > ON > 6.5. ARC review type: > FastTrack > From sacadmin Wed Jun 6 19:35:02 2007 Received: from dm-singapore-01.singapore.sun.com (dm-singapore-01.Singapore.Sun.COM [129.158.71.101]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l572Z1bo001626 for ; Wed, 6 Jun 2007 19:35:01 -0700 (PDT) Received: from sineb-smtp-1.singapore.sun.com (sineb-smtp-1 [129.158.123.4]) by dm-singapore-01.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id l572XYq2013564 for ; Thu, 7 Jun 2007 10:33:34 +0800 (SGT) Received: from phys-sedge1-1.singapore.sun.com (phys-sedge1-1.Singapore.Sun.COM [129.158.123.8]) by sineb-smtp-1.singapore.sun.com (8.13.6+Sun/8.12.9) with ESMTP id l572ioSW014434 for ; Thu, 7 Jun 2007 02:44:50 GMT Received: from [129.158.218.218] by sedge1-mail1.singapore.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPA id <0JJ800AHYV3S7AD0@sedge1-mail1.singapore.sun.com> for psarc@sac.sfbay.sun.com; Thu, 07 Jun 2007 10:33:29 +0800 (SGT) Date: Thu, 07 Jun 2007 10:31:43 +0800 From: yongfeng du Subject: Re: PSARC 2007/326 New subclass for DR class events In-reply-to: <46671DFA.4040108@Sun.COM> To: Huay-Yong.Wang@Sun.COM Cc: Cecilia.Hu@Sun.COM, Ming Li , psarc@sac.sfbay.sun.com, "Dana H. Myers" Message-id: <46676E0F.3060804@sun.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1; format=flowed Content-transfer-encoding: 7BIT References: <4663BC50.2020900@sun.com> <46671DFA.4040108@Sun.COM> User-Agent: Thunderbird 1.5.0.8 (X11/20061204) Status: RO Content-Length: 5230 This proposal is generic enough for PICL to use. You could use this new event the same way as ESC_DR_AP_STATE_CHANGE, just keep in mind the payload is a little different (Target ID vs AP ID). The ESC_DR_AP_STATE_CHANGE will not be implemented in mpt since the AP_ID is not feasible for HBA driver. For the CR 6526184, it can be solved by using of this new proposed event. There is another case that might help CR 6526184, see PSARC/2006/703 section 4.7 Dynamic target change capability Mpt driver will configure/unconfigure the target automatically according to the hardware events, independent of the cfgadm(1M). There would be EC_DEVFS events generated on successfully configuration/unconfiguration. Thanks, Dolpher Huay-Yong.Wang@Sun.COM wrote: > > Will this effort address the issue in the PICL > framework where the SCSI/SAS disk targets picl status are > not updated upon hot insert/removal? Please see > CR 6526184. > > Regarding the PICL framework, currently the generic > PICL syseventd module filter out all but 3 sysevents. > The 3 events delivered to PICL are: > > - PICLEVENT_SYSEVENT_DEVICE_ADDED (EC_DEVFS, ESC_DEVFS_DEVI_ADD) > - PICLEVENT_SYSEVENT_DEVICE_REMOVED (EC_DEVFS, ESC_DEVFS_DEVI_REMOVE) > - PICLEVENT_DR_AP_STATE_CHANGE (EC_DR, ESC_DR_AP_STATE_CHANGE) > > For this case, I see that you are proposing a set of new EC_DR subclass. > I want to make sure that this proposal is generic enough > to address the PICL update for SAS/mpt hot insert/removal. > (preferably without the need to change PICL framework code) > > Cecilia Hu wrote: > >> I'm sponsoring this fast-track for Dolpher Du and River Li. >> The requested release binding is micro/patch, timer is set >> to 06/11/2007. >> >> This project proposes to introduce a new subclass to EC_DR >> event class so as to describe target status change. >> >> -Cecilia >> >> >> >> 1. Introduction >> 1.1. Project/Component Working Name: >> New subclass for DR class events >> >> 1.2. Name of Document Author/Supplier: >> Author: Dolpher Du/River Li >> >> 1.3. Date of This Document: >> 1 June, 2007 >> >> 4. Technical Description: >> 1) Background >> ============= >> >> The sfx-4500 disk monitor, which is used to monitor the status of >> disk, requires the mpt HBA driver to generate notification events >> when sata drives are removed or inserted. The mpt HBA controller >> hardware provides asynchronous message mechanism to notify HBA >> driver about target hotplug. When mpt HBA driver receives such >> messages, it should generate EC_DR events and reports them to upper >> level consumers. >> 2) Problem >> ========== >> >> The EC_DR event class was defined in PSARC 2000/189. It contains >> two subclasses: ESC_DR_AP_STATE_CHANGE and ESC_DR_REQ, both of >> which are designed to reflect the status change of dynamic >> attachment point. The dynamic attachment point defined in >> cfgadm(1M) is a lun based conception for SCSI, not target >> based. For the SCSI/SAS HBAs that are target status sensitive, >> those two type of events are not feasible since the host HBA driver >> can't get the notification of single lun online or offline from >> hardware if the target keeps connection. In other respect, the >> existing event subclasses are not convenient for consumers that >> only care for target status change. >> >> 3) Solution >> =========== >> >> We propose a new subclass belonging to the EC_DR class. It is used >> to describe target status change, and defined as following: >> ESC_DR_TARGET_STATE_CHANGE (per target state change event) >> Description - Indicate a cable connection state change >> Commitment Level - "Consolidation Private" >> >> Event Class - EC_DR >> Event Sub-Class - ESC_DR_TARGET_STATE_CHANGE >> Event Publisher - SUNW:kern: >> Attribute Name - TARGET_ID >> Attribute Type - [SE_DATA_TYPE_STRING] >> Attribute Value - >> Attribute Name - HINT >> Attribute Type - [SE_DATA_TYPE_STRING] >> Attribute Value - "" | "insert" | "remove" | ... >> For example, a sata disk is connected to LSI SAS controller, and >> marked as target 5. The physical path of the LSI SAS controller is >> /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1. When the sata >> disk is removed physically, mpt driver will generate the >> ESC_DR_TARGET_STATE_CHANGE event. Its TARGET_ID payload is >> /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1:5, and HINT is >> "remove". >> This event will be first used by mpt driver, but the >> concept of >> target id is not limited to SCSI, it's common enough for other HBA >> drivers to use. >> >> 5. Reference Documents: >> PSARC 2000/189 >> PSARC/1998/424 >> >> 6. Resources and Schedule: >> 6.4. Product Approval Committee requested information: >> 6.4.1. Consolidation or Component Name: >> ON >> 6.5. ARC review type: >> FastTrack >> > From sacadmin Wed Jun 6 19:54:38 2007 Received: from sineb-mail-1.sun.com ([192.18.19.6]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l572sbMB002664 for ; Wed, 6 Jun 2007 19:54:38 -0700 (PDT) Received: from fe-apac-05.sun.com (fe-apac-05.sun.com [192.18.19.176] (may be forged)) by sineb-mail-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id l572r6CI015272 for ; Thu, 7 Jun 2007 02:53:06 GMT Received: from sun.com ([129.158.123.14]) by mail-apac.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTP id <0JJ800DMYW0I95RC@mail-apac.sun.com> for psarc@sac.sfbay.sun.com; Thu, 07 Jun 2007 10:53:06 +0800 (SGT) Received: from [192.18.19.175] (Forwarded-For: [129.158.71.40]) by sedge2-mail1.singapore.sun.com (mshttpd); Thu, 07 Jun 2007 10:53:06 +0800 Date: Thu, 07 Jun 2007 10:53:06 +0800 From: En-Hua Cecilia Hu Subject: Re: PSARC 2007/326 New subclass for DR class events In-reply-to: <46676E0F.3060804@sun.com> To: yongfeng du Cc: Huay-Yong.Wang@Sun.COM, Ming Li , psarc@sac.sfbay.sun.com, "Dana H. Myers" Message-id: MIME-version: 1.0 X-Mailer: Sun Java(tm) System Messenger Express 6.2-6.01 (built Apr 3 2006) Content-type: text/plain; charset=us-ascii Content-language: en Content-transfer-encoding: 7BIT Content-disposition: inline X-Accept-Language: en Priority: normal References: <4663BC50.2020900@sun.com> <46671DFA.4040108@Sun.COM> <46676E0F.3060804@sun.com> Status: RO Content-Length: 70 FYI. This fasttrack was approved at today's PSARC meeting. -Cecilia From sacadmin Thu Jun 7 09:27:15 2007 Received: from sfbaymail1sca.SFBay.Sun.COM (sfbaymail1sca.SFBay.Sun.COM [129.145.154.35]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id l57GRFci016359 for ; Thu, 7 Jun 2007 09:27:15 -0700 (PDT) Received: from brmea-mail-4.sun.com (brmea-mail-4.Sun.COM [192.18.98.36]) by sfbaymail1sca.SFBay.Sun.COM (8.13.6+Sun/8.13.6/ENSMAIL,v2.2) with ESMTP id l57GPmEQ009906 for ; Thu, 7 Jun 2007 09:25:49 -0700 (PDT) Received: from fe-amer-06.sun.com ([192.18.108.180]) by brmea-mail-4.sun.com (8.13.6+Sun/8.12.9) with ESMTP id l57GPm8R003178 for ; Thu, 7 Jun 2007 16:25:48 GMT Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) id <0JJ900J01XGYS200@mail-amer.sun.com> (original mail from Huay-Yong.Wang@Sun.COM) for psarc@sac.sfbay.sun.com; Thu, 07 Jun 2007 10:25:48 -0600 (MDT) Received: from [192.168.1.2] ([71.154.212.76]) by mail-amer.sun.com (Sun Java System Messaging Server 6.2-6.01 (built Apr 3 2006)) with ESMTPSA id <0JJ9001W6XMVQD12@mail-amer.sun.com> for psarc@sac.sfbay.sun.com; Thu, 07 Jun 2007 10:25:48 -0600 (MDT) Date: Thu, 07 Jun 2007 09:25:39 -0700 From: Huay-Yong Wang Subject: Re: PSARC 2007/326 New subclass for DR class events In-reply-to: <46676E0F.3060804@sun.com> Sender: Huay-Yong.Wang@Sun.COM To: yongfeng du Cc: Cecilia.Hu@Sun.COM, Ming Li , psarc@sac.sfbay.sun.com, "Dana H. Myers" Message-id: <46683183.6010705@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=us-ascii Content-transfer-encoding: 7BIT X-Accept-Language: en-us, en References: <4663BC50.2020900@sun.com> <46671DFA.4040108@Sun.COM> <46676E0F.3060804@sun.com> User-Agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.13) Gecko/20060414 Status: RO Content-Length: 5654 yongfeng du wrote: > This proposal is generic enough for PICL to use. > You could use this new event the same way as ESC_DR_AP_STATE_CHANGE, > just keep in mind the payload is a little different (Target ID vs AP ID). > The ESC_DR_AP_STATE_CHANGE will not be implemented in mpt since > the AP_ID is not feasible for HBA driver. > > For the CR 6526184, it can be solved by using of this new proposed event. > > There is another case that might help CR 6526184, see > PSARC/2006/703 section 4.7 Dynamic target change capability > Mpt driver will configure/unconfigure the target automatically according > to the hardware events, > independent of the cfgadm(1M). There would be EC_DEVFS events generated > on successfully > configuration/unconfiguration. My point is that since you are adding functionality to generate events for mpt detected hardware events (hot insert/removal), it make sense to ensure PICL framework benefit from it. If you are generating EC_DEVFS events, that will work too. Thanks. > > Thanks, > Dolpher > > Huay-Yong.Wang@Sun.COM wrote: > >> >> Will this effort address the issue in the PICL >> framework where the SCSI/SAS disk targets picl status are >> not updated upon hot insert/removal? Please see >> CR 6526184. >> >> Regarding the PICL framework, currently the generic >> PICL syseventd module filter out all but 3 sysevents. >> The 3 events delivered to PICL are: >> >> - PICLEVENT_SYSEVENT_DEVICE_ADDED (EC_DEVFS, ESC_DEVFS_DEVI_ADD) >> - PICLEVENT_SYSEVENT_DEVICE_REMOVED (EC_DEVFS, ESC_DEVFS_DEVI_REMOVE) >> - PICLEVENT_DR_AP_STATE_CHANGE (EC_DR, ESC_DR_AP_STATE_CHANGE) >> >> For this case, I see that you are proposing a set of new EC_DR subclass. >> I want to make sure that this proposal is generic enough >> to address the PICL update for SAS/mpt hot insert/removal. >> (preferably without the need to change PICL framework code) >> >> Cecilia Hu wrote: >> >>> I'm sponsoring this fast-track for Dolpher Du and River Li. >>> The requested release binding is micro/patch, timer is set >>> to 06/11/2007. >>> >>> This project proposes to introduce a new subclass to EC_DR >>> event class so as to describe target status change. >>> >>> -Cecilia >>> >>> >>> >>> 1. Introduction >>> 1.1. Project/Component Working Name: >>> New subclass for DR class events >>> >>> 1.2. Name of Document Author/Supplier: >>> Author: Dolpher Du/River Li >>> >>> 1.3. Date of This Document: >>> 1 June, 2007 >>> >>> 4. Technical Description: >>> 1) Background >>> ============= >>> >>> The sfx-4500 disk monitor, which is used to monitor the status of >>> disk, requires the mpt HBA driver to generate notification events >>> when sata drives are removed or inserted. The mpt HBA controller >>> hardware provides asynchronous message mechanism to notify HBA >>> driver about target hotplug. When mpt HBA driver receives such >>> messages, it should generate EC_DR events and reports them to upper >>> level consumers. >>> 2) Problem >>> ========== >>> >>> The EC_DR event class was defined in PSARC 2000/189. It contains >>> two subclasses: ESC_DR_AP_STATE_CHANGE and ESC_DR_REQ, both of >>> which are designed to reflect the status change of dynamic >>> attachment point. The dynamic attachment point defined in >>> cfgadm(1M) is a lun based conception for SCSI, not target >>> based. For the SCSI/SAS HBAs that are target status sensitive, >>> those two type of events are not feasible since the host HBA driver >>> can't get the notification of single lun online or offline from >>> hardware if the target keeps connection. In other respect, the >>> existing event subclasses are not convenient for consumers that >>> only care for target status change. >>> >>> 3) Solution >>> =========== >>> >>> We propose a new subclass belonging to the EC_DR class. It is used >>> to describe target status change, and defined as following: >>> ESC_DR_TARGET_STATE_CHANGE (per target state change event) >>> Description - Indicate a cable connection state change >>> Commitment Level - "Consolidation Private" >>> >>> Event Class - EC_DR >>> Event Sub-Class - ESC_DR_TARGET_STATE_CHANGE >>> Event Publisher - SUNW:kern: >>> Attribute Name - TARGET_ID >>> Attribute Type - [SE_DATA_TYPE_STRING] >>> Attribute Value - >>> Attribute Name - HINT >>> Attribute Type - [SE_DATA_TYPE_STRING] >>> Attribute Value - "" | "insert" | "remove" | ... For >>> example, a sata disk is connected to LSI SAS controller, and >>> marked as target 5. The physical path of the LSI SAS controller is >>> /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1. When the sata >>> disk is removed physically, mpt driver will generate the >>> ESC_DR_TARGET_STATE_CHANGE event. Its TARGET_ID payload is >>> /devices/pci@7c0/pci@0/pci@1/pci@0,2/LSILogic,sas@1:5, and HINT is >>> "remove". >>> This event will be first used by mpt driver, but the >>> concept of >>> target id is not limited to SCSI, it's common enough for other HBA >>> drivers to use. >>> >>> 5. Reference Documents: >>> PSARC 2000/189 >>> PSARC/1998/424 >>> >>> 6. Resources and Schedule: >>> 6.4. Product Approval Committee requested information: >>> 6.4.1. Consolidation or Component Name: >>> ON >>> 6.5. ARC review type: >>> FastTrack >>> >>