scsi_mode_select(9) [centos man page]

SCSI_MODE_SELECT(9)						  SCSI mid layer					       SCSI_MODE_SELECT(9)

NAME

       scsi_mode_select - issue a mode select

SYNOPSIS

       int scsi_mode_select(struct scsi_device * sdev, int pf, int sp, int modepage, unsigned char * buffer, int len, int timeout, int retries,
			    struct scsi_mode_data * data, struct scsi_sense_hdr * sshdr);

ARGUMENTS

       sdev
	   SCSI device to be queried

       pf
	   Page format bit (1 == standard, 0 == vendor specific)

       sp
	   Save page bit (0 == don't save, 1 == save)

       modepage
	   mode page being requested

       buffer
	   request buffer (may not be smaller than eight bytes)

       len
	   length of request buffer.

       timeout
	   command timeout

       retries
	   number of retries before failing

       data
	   returns a structure abstracting the mode header data

       sshdr
	   place to put sense data (or NULL if no sense to be collected). must be SCSI_SENSE_BUFFERSIZE big.

DESCRIPTION

       Returns zero if successful; negative error number or scsi status on error

AUTHORS

       James Bottomley <James.Bottomley@hansenpartnership.com>
	   Author.

       Rob Landley <rob@landley.net>
	   Author.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014						       SCSI_MODE_SELECT(9)

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)