srp_rport_get – increment rport reference count Synopsis void srp_rport_get(struct srp_rport *rport); Arguments rport SRP target port. Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob [at] landley.net> Author. Copyright
srp_rport_del – remove a SRP remote port Synopsis void srp_rport_del(struct srp_rport *rport); Arguments rport SRP remote port to remove Description Removes the specified SRP remote port. Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob [at] landley.net> Author. Copyright
srp_rport_add – add a SRP remote port to the device hierarchy Synopsis struct srp_rport *srp_rport_add(struct Scsi_Host *shost, struct srp_rport_identifiers *ids); Arguments shost scsi host the remote port is connected to. ids The port id for the remote port. Description Publishes a port to the rest of the system. Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author….
srp_remove_host – tear down a Scsi_Host’s SRP data structures Synopsis void srp_remove_host(struct Scsi_Host *shost); Arguments shost Scsi Host that is torn down Description Removes all SRP remote ports for a given Scsi_Host. Must be called just before scsi_remove_host for SRP HBAs. Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob [at] landley.net> Author. Copyright
srp_release_transport – release SRP transport template instance Synopsis void srp_release_transport(struct scsi_transport_template *t); Arguments t transport template instance Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob [at] landley.net> Author. Copyright
srp_reconnect_rport – reconnect to an SRP target port Synopsis int srp_reconnect_rport(struct srp_rport *rport); Arguments rport SRP target port. 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 –…
srp_attach_transport – instantiate SRP transport template Synopsis struct scsi_transport_template *srp_attach_transport(struct srp_function_template *ft); Arguments ft SRP transport class function template Authors James Bottomley <James.Bottomley [at] hansenpartnership.com> Author. Rob Landley <rob [at] landley.net> Author. Copyright
sq_unmap – Unmap a Store Queue allocation Synopsis void sq_unmap(unsigned long vaddr); Arguments vaddr Pre-allocated Store Queue mapping. Description Unmaps the store queue allocation map that was previously created by sq_remap. Also frees up the pte that was previously inserted into the kernel page table and discards the UTLB translation. Author Paul Mundt <lethal [at]…
sq_remap – Map a physical address through the Store Queues Synopsis unsigned long sq_remap(unsigned long phys, unsigned int size, const char *name, pgprot_t prot); Arguments phys Physical address of mapping. size Length of mapping. name User invoking mapping. prot Protection bits. Description Remaps the physical address phys through the next available store queue address of…
sq_flush_range – Flush (prefetch) a specific SQ range Synopsis void sq_flush_range(unsigned long start, unsigned int len); Arguments start the store queue address to start flushing from len the length to flush Description Flushes the store queue cache from start to start + len in a linear fashion. Author Paul Mundt <lethal [at] linux-sh.org> Author. Copyright
sprintf – Format a string and place it in a buffer Synopsis int sprintf(char *buf, const char *fmt, …); Arguments buf The buffer to place the result into fmt The format string to use … Arguments for the format string Description The function returns the number of characters written into buf. Use snprintf or scnprintf…
splice_to_pipe – fill passed data into a pipe Synopsis ssize_t splice_to_pipe(struct pipe_inode_info * pipe, struct splice_pipe_desc * spd); Arguments pipe pipe to fill spd data to fill Description spd contains a map of pages and len/offset tuples, along with the struct pipe_buf_operations associated with these pages. This function will link that data to the pipe. Copyright
splice_from_pipe_next – wait for some data to splice from Synopsis int splice_from_pipe_next(struct pipe_inode_info *pipe, struct splice_desc *sd); Arguments pipe pipe to splice from sd information about the splice operation Description This function will wait for some data and return a positive value (one) if pipe buffers are available. It will return zero or -errno if…
splice_from_pipe_feed – feed available data from a pipe to a file Synopsis int splice_from_pipe_feed(struct pipe_inode_info *pipe, struct splice_desc *sd, splice_actor *actor); Arguments pipe pipe to splice from sd information to actor actor handler that splices the data Description This function loops over the pipe and calls actor to do the actual moving of a single…
splice_from_pipe_end – finish splicing from pipe Synopsis void splice_from_pipe_end(struct pipe_inode_info *pipe, struct splice_desc *sd); Arguments pipe pipe to splice from sd information about the splice operation Description This function will wake up pipe writers if necessary. It should be called after a loop containing splice_from_pipe_next and splice_from_pipe_feed. Copyright
splice_from_pipe_begin – start splicing from pipe Synopsis void splice_from_pipe_begin(struct splice_desc *sd); Arguments sd information about the splice operation Description This function should be called before a loop containing splice_from_pipe_next and splice_from_pipe_feed to initialize the necessary fields of sd. Copyright
splice_from_pipe – splice data from a pipe to a file Synopsis ssize_t splice_from_pipe(struct pipe_inode_info * pipe, struct file * out, loff_t * ppos, size_t len, unsigned int flags, splice_actor * actor); Arguments pipe pipe to splice from out file to splice to ppos position in out len how many bytes to splice flags splice modifier flags actor handler that splices the data Description See __splice_from_pipe….
splice_direct_to_actor – splices data directly between two non-pipes Synopsis ssize_t splice_direct_to_actor(struct file * in, struct splice_desc * sd, splice_direct_actor * actor); Arguments in file to splice from sd actor information on where to splice to actor handles the data splicing Description This is a special case helper to splice directly between two points, without requiring an explicit pipe. Internally an allocated…
spi_schedule_dv_device – schedule domain validation to occur on the device Synopsis void spi_schedule_dv_device(struct scsi_device *sdev); Arguments sdev The device to validate Description Identical to spi_dv_device above, except that the DV will be scheduled to occur in a workqueue later. All memory allocations are atomic, so may be called from any context including those holding SCSI…
spi_populate_tag_msg – place a tag message in a buffer Synopsis int spi_populate_tag_msg(unsigned char *msg, struct scsi_cmnd *cmd); Arguments msg pointer to the area to place the tag cmd pointer to the scsi command for the tag Notes designed to create the correct type of tag message for the particular request. Returns the size of the…