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[SCSI] isci: export phy events via ->lldd_control_phy()

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Allow the sas-transport-class to update events for local phys via a new
PHY_FUNC_GET_EVENTS command to ->lldd_control_phy().  Fixup drivers that
are not prepared for new enum phy_func values, and unify
->lldd_control_phy() error codes.

These are the SAS defined phy events that are reported in a
smp-report-phy-error-log command:
 * /sys/class/sas_phy/<phyX>/invalid_dword_count
 * /sys/class/sas_phy/<phyX>/running_disparity_error_count
 * /sys/class/sas_phy/<phyX>/loss_of_dword_sync_count
 * /sys/class/sas_phy/<phyX>/phy_reset_problem_count

Signed-off-by: Dan Williams <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
This commit is contained in:
Dan Williams 2011-09-28 18:48:02 -07:00 • committed by James Bottomley
commit ac013ed1cb
6 changed files with 24 additions and 6 deletions
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1
include/scsi/sas.h
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@ -122,6 +122,7 @@ enum phy_func {
PHY_FUNC_TX_SATA_PS_SIGNAL,
PHY_FUNC_RELEASE_SPINUP_HOLD = 0x10, /* LOCAL PORT ONLY! */
PHY_FUNC_SET_LINK_RATE,
PHY_FUNC_GET_EVENTS,
};
/* SAS LLDD would need to report only _very_few_ of those, like BROADCAST.