[PATCHSET 1/4] libata: misc updates in preparation of PMP support, take #2

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Hello,

This is the second take of misc-updates patchset which updates various
aspects of libata in preparation of PMP support.

#01 ahci: build fix for !CONFIG_PM
#02 libata: add @is_cmd to ata_tf_to_fis()
#03 ahci: use deadline instead of fixed timeout for 1st FIS for SRST
#04 ahci: separate out ahci_kick_engine()
#05 ahci: separate out ahci_exec_polled_cmd()
#06 ahci: separate out ahci_do_softreset()
#07 sata_sil24: replace sil24_update_tf() with sil24_read_tf()
#08 sata_sil24: separate out sil24_exec_polled_cmd()
#09 sata_sil24: separate out sil24_do_softreset()
#10 libata: improve EH report formatting
#11 libata: implement AC_ERR_NCQ
#12 libata: make ->scr_read/write callbacks return error code
#13 ahci: make NO_NCQ handling more consistent
#14 ahci: implement SCR_NOTIFICATION r/w
#15 libata: improve SATA PHY speed down logic
#16 libata: quickly trigger SATA SPD down after debouncing failed
#17 libata: improve SCSI scan failure handling
#18 libata: reorganize ata_ehi_hotplugged()
#19 libata: clear HOTPLUG flag after a reset
#20 libata: schedule probing after SError access failure during autopsy
#21 libata: implement EH fast drain

#01 fixes build breakge.  #02-09 separate out polled command execution
from softreset routines of ahci and sata_sil24.  These will be later
used to implement PMP r/w callbacks.  #10-14 are mostly trivial.
#15-21 improve EH behavior to prepare for PMP support.

Changes from the last take are...

* #01 added
* #02-#09 moved here from pmp patchset as Jeff requested
* #10 updated as Jeff requested

This patchset is on top of

  libata-dev#upstream (d79eb6de54f180dc83b488b20747f0097fde3dea)

Thanks.

--
tejun

[L] http://thread.gmane.org/gmane.linux.ide/20081

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