SCSI_CMD_GET_SERIAL(9) SCSI mid layer SCSI_CMD_GET_SERIAL(9)NAME
scsi_cmd_get_serial - Assign a serial number to a command
SYNOPSIS
void scsi_cmd_get_serial(struct Scsi_Host * host, struct scsi_cmnd * cmd);
ARGUMENTS
host
the scsi host
cmd
command to assign serial number to
DESCRIPTION
a serial number identifies a request for error recovery and debugging purposes. Protected by the Host_Lock of host.
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SCSI_CMD_GET_SERIAL(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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