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path: root/drivers/target/target_core_sbc.c
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* target: move sync_cache to struct spc_opsChristoph Hellwig2012-06-211-14/+4
| | | | | | | | Add spc_ops->execute_sync_cache() caller for ->execute_cmd() setup, and update IBLOCK + FILEIO backends to use it. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
* target: add struct spc_ops + initial ->execute_rw pointer usageChristoph Hellwig2012-06-211-1/+11
| | | | | | | | | | | Remove the execute_cmd method in struct se_subsystem_api, and always use the one directly in struct se_cmd. To make life simpler for SBC virtual backends a struct spc_ops that is passed to sbc_parse_cmd is added. For now it only contains an execute_rw member, but more will follow with the subsequent commits. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
* target: move code for CDB emulationChristoph Hellwig2012-06-121-19/+220
| | | | | | | | Move the existing code in target_core_cdb.c into the files for the command sets that the emulations implement. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
* target: add a parse_cdb method to the backend driversChristoph Hellwig2012-06-121-0/+450
Instead of trying to handle all SCSI command sets in one function (transport_generic_cmd_sequencer) call out to the backend driver to perform this functionality. For pSCSI a copy of the existing code is used, but for all virtual backends we can use a new parse_sbc_cdb helper is used to provide a simple SBC emulation. For now this setups means a fair amount of duplication between pSCSI and the SBC library, but patches later in this series will sort out that problem. (nab: Fix up build failure in target_core_pscsi.c) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>