SCSI_IS_SAS_PHY(9) SCSI mid layer SCSI_IS_SAS_PHY(9)NAME
scsi_is_sas_phy - check if a struct device represents a SAS PHY
SYNOPSIS
int scsi_is_sas_phy(const struct device * dev);
ARGUMENTS
dev
device to check
RETURNS
1 if the device represents a SAS PHY, 0 else
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SCSI_IS_SAS_PHY(9)
Check Out this Related Man Page
SRP_RECONNECT_RPORT(9) SCSI mid layer SRP_RECONNECT_RPORT(9)NAME
srp_reconnect_rport - reconnect to an SRP target port
SYNOPSIS
int srp_reconnect_rport(struct srp_rport * rport);
ARGUMENTS
rport
-- undescribed --
DESCRIPTION
Blocks SCSI command queueing before invoking reconnect such that queuecommand won't be invoked concurrently with reconnect from outside the
SCSI EH. This is important since a reconnect implementation may reallocate resources needed by queuecommand.
NOTES
- This function neither waits until outstanding requests have finished nor tries to abort these. It is the responsibility of the reconnect
function to finish outstanding commands before reconnecting to the target port. - It is the responsibility of the caller to ensure that the
resources reallocated by the reconnect function won't be used while this function is in progress. One possible strategy is to invoke this
function from the context of the SCSI EH thread only. Another possible strategy is to lock the rport mutex inside each SCSI LLD callback
that can be invoked by the SCSI EH (the scsi_host_template.eh_*() functions and also the scsi_host_template.queuecommand function).
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SRP_RECONNECT_RPORT(9)
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