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linux/include/scsi
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Aaron Lu 6f4c827e68 [libata] scsi: no poll when ODD is powered off 
When the ODD is powered off, any action the user did to the ODD that
would generate a media event will trigger an ACPI interrupt, so the
poll for media event is no longer necessary. And the poll will also
cause a runtime status change, which will stop the ODD from staying in
powered off state, so the poll should better be stopped.

But since we don't have access to the gendisk structure in LLDs, here
comes the disk_events_disable_depth for scsi device. This field is a
hint set by LLDs to convey information to upper layer drivers. A value
of 0 means media poll is necessary for the device, while values above 0
means media poll is not needed and should better be skipped. So we can
increase its value when we are to power off the ODD in ATA layer and
decrease its value when the ODD is powered on, effectively silence the
media events poll.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2013-01-25 15:36:43 -05:00
..
fc [SCSI] libfc: fix lun reset failure bugs in fc_fcp_resp handling of FCP_RSP_INFO 2012-10-07 11:52:55 +01:00
fc_encode.h [SCSI] libfc: Add support for FDMI 2012-02-19 08:08:58 -06:00
fc_frame.h [SCSI] fcoe: remove unused ptype field in fcoe_rcv_info 2011-07-28 12:08:55 +04:00
fcoe_sysfs.h [SCSI] libfcoe: Add fcoe_sysfs 2012-05-23 09:40:09 +01:00
iscsi_if.h [SCSI] qla4xxx: Removed packed attr from struct iscsi_chap_rec 2012-03-27 08:26:35 +01:00
iscsi_proto.h [SCSI] be2iscsi: Get Initiator Name for the iSCSI_Host 2012-04-25 09:29:35 +01:00
Kbuild [SCSI] Unexport scsi/scsi.h from headers_install 2010-05-02 11:45:12 -04:00
libfc.h [SCSI] libfc: update fcp and exch stats 2012-07-20 08:31:48 +01:00
libfcoe.h [SCSI] fcoe: Fix write errors on NPIV ports 2012-10-07 11:49:34 +01:00
libiscsi.h [SCSI] libiscsi_tcp: fix max_r2t manipulation 2012-02-19 08:09:00 -06:00
libiscsi_tcp.h [SCSI] libiscsi_tcp: fix max_r2t manipulation 2012-02-19 08:09:00 -06:00
libsas.h [SCSI] libsas: suspend / resume support 2012-08-24 13:10:23 +04:00
libsrp.h libsrp: fix compile failure 2009-12-30 12:23:27 -08:00
osd_attributes.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
osd_initiator.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
osd_ore.h BUG: headers with BUG/BUG_ON etc. need linux/bug.h 2012-03-04 17:54:34 -05:00
osd_protocol.h [SCSI] libosd: Support for scatter gather write/read commands 2010-10-26 10:42:34 -05:00
osd_sec.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers 2012-10-02 18:01:25 +01:00
osd_sense.h [SCSI] libosd: osd_sense: OSD_CFO_PERMISSIONS 2009-12-04 12:01:44 -06:00
osd_types.h [SCSI] libosd: Support for scatter gather write/read commands 2010-10-26 10:42:34 -05:00
sas.h isci: kill sci_phy_protocol and sci_request_protocol 2012-05-17 12:27:11 -07:00
sas_ata.h [SCSI] libsas: suspend / resume support 2012-08-24 13:10:23 +04:00
scsi.h Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream 2012-07-25 15:58:48 -04:00
scsi_bsg_fc.h [SCSI] fc-transport: Remove unnecessary include 2012-09-24 12:11:03 +04:00
scsi_bsg_iscsi.h [SCSI] iscsi class: add bsg support to iscsi class 2011-08-27 08:36:21 -06:00
scsi_cmnd.h [SCSI] Shorten the path length of scsi_cmd_to_driver() 2012-10-09 12:04:42 +01:00
scsi_dbg.h [SCSI] Fix device not ready printk 2007-10-12 14:51:56 -04:00
scsi_device.h [libata] scsi: no poll when ODD is powered off 2013-01-25 15:36:43 -05:00
scsi_devinfo.h [SCSI] Disable DIF on Hitachi Ultrastar 15K300 2012-09-24 12:11:00 +04:00
scsi_dh.h [SCSI] scsi_dh: add scsi_dh_attached_handler_name 2012-07-20 08:58:42 +01:00
scsi_driver.h [SCSI] Handle disk devices which can not process medium access commands 2012-02-19 10:14:52 -06:00
scsi_eh.h [SCSI] scsi_eh_prep_cmnd should save scmd->underflow 2008-07-26 15:14:56 -04:00
scsi_host.h [SCSI] sd: Ensure we correctly disable devices with unknown protection type 2012-09-24 13:01:24 +04:00
scsi_ioctl.h [PATCH] don't mess with file in scsi_nonblockable_ioctl() 2008-10-21 07:47:28 -04:00
scsi_netlink.h scsi_netlink: Remove dead and buggy code 2012-09-13 16:26:39 -04:00
scsi_netlink_fc.h
scsi_tcq.h [SCSI] target: Convert TASK_ATTR to scsi_tcq.h definitions 2011-05-24 13:03:56 -04:00
scsi_tgt.h [SCSI] tgt: add I_T nexus support 2007-10-12 14:37:50 -04:00
scsi_tgt_if.h [SCSI] tgt: add I_T nexus support 2007-10-12 14:37:50 -04:00
scsi_transport.h BUG: headers with BUG/BUG_ON etc. need linux/bug.h 2012-03-04 17:54:34 -05:00
scsi_transport_fc.h [SCSI] fc: add some more FC specific stats to fc_host 2012-07-20 08:31:47 +01:00
scsi_transport_iscsi.h [SCSI] iscsi_transport: Add support to display CHAP list and delete CHAP entry 2012-02-29 16:55:59 -06:00
scsi_transport_sas.h [SCSI] scsi_transport_sas: add 12GB definitions for mpt3sas 2012-12-01 10:08:41 +00:00
scsi_transport_spi.h [SCSI] aic79xx: make driver respect nvram for IU and QAS settings 2009-06-15 10:09:35 -05:00
scsi_transport_srp.h IB/srp: Allow SRP disconnect through sysfs 2012-11-30 17:40:33 -08:00
scsicam.h
sg.h sysctl extern cleanup: sg 2010-03-12 15:53:10 -08:00
srp.h IB/srp: Implement SRP_CRED_REQ and SRP_AER_REQ 2010-10-22 22:19:10 -07:00