From 3e1c81a95f0d776cea68a36cfc78a0ce8f6d3a77 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 6 Mar 2013 22:18:24 -0800 Subject: iscsi-target: Refactor RX PDU logic + export request PDU handling This patch refactors existing traditional iscsi RX side PDU handling to use iscsit_transport, and exports the necessary logic for external transport modules. This includes: - Refactor iscsit_handle_scsi_cmd() into PDU setup / processing - Add updated iscsit_handle_scsi_cmd() for tradtional iscsi code - Add iscsit_set_unsoliticed_dataout() wrapper - Refactor iscsit_handle_data_out() into PDU check / processing - Add updated iscsit_handle_data_out() for tradtional iscsi code - Add iscsit_handle_nop_out() + iscsit_handle_task_mgt_cmd() to accept pre-allocated struct iscsi_cmd - Add iscsit_build_r2ts_for_cmd() caller for iscsi_target_transport to handle ISTATE_SEND_R2T for TX immediate queue - Refactor main traditional iscsi iscsi_target_rx_thread() PDU switch into iscsi_target_rx_opcode() using iscsit_allocate_cmd() - Turn iscsi_target_rx_thread() process context into NOP for ib_isert side work-queue. v5 changes: - Make iscsit_handle_scsi_cmd() static (Fengguang) - Fix iscsit_handle_scsi_cmd() exception se_cmd leak (nab) v3 changes: - Add extra target_put_sess_cmd call in iscsit_add_reject_from_cmd after completion v2 changes: - Disable iscsit_ack_from_expstatsn() usage for RDMAExtentions=Yes - Disable iscsit_allocate_datain_req() usage for RDMAExtentions=Yes - Add target_get_sess_cmd() reference counting to iscsit_setup_scsi_cmd() - Add TFO->lio_check_stop_free() fabric API caller - Add export of iscsit_stop_dataout_timer() symbol - Add iscsit_build_r2ts_for_cmd() for iscsit_transport->iscsit_get_dataout() - Convert existing usage of iscsit_build_r2ts_for_cmd() to ->iscsit_get_dataout() - Drop RDMAExtentions=Yes specific check in iscsit_build_r2ts_for_cmd() - Fix RDMAExtentions -> RDMAExtensions typo (andy) - Pass correct dump_payload value into iscsit_get_immediate_data() for iscsit_handle_scsi_cmd() Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/target/iscsi/iscsi_target.h') diff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h index b1a1e6350707..a0050b2f294e 100644 --- a/drivers/target/iscsi/iscsi_target.h +++ b/drivers/target/iscsi/iscsi_target.h @@ -16,11 +16,12 @@ extern int iscsit_reset_np_thread(struct iscsi_np *, struct iscsi_tpg_np *, struct iscsi_portal_group *); extern int iscsit_del_np(struct iscsi_np *); extern int iscsit_add_reject_from_cmd(u8, int, int, unsigned char *, struct iscsi_cmd *); +extern void iscsit_set_unsoliticed_dataout(struct iscsi_cmd *); extern int iscsit_logout_closesession(struct iscsi_cmd *, struct iscsi_conn *); extern int iscsit_logout_closeconnection(struct iscsi_cmd *, struct iscsi_conn *); extern int iscsit_logout_removeconnforrecovery(struct iscsi_cmd *, struct iscsi_conn *); extern int iscsit_send_async_msg(struct iscsi_conn *, u16, u8, u8); -extern int iscsit_build_r2ts_for_cmd(struct iscsi_cmd *, struct iscsi_conn *, bool recovery); +extern int iscsit_build_r2ts_for_cmd(struct iscsi_conn *, struct iscsi_cmd *, bool recovery); extern void iscsit_thread_get_cpumask(struct iscsi_conn *); extern int iscsi_target_tx_thread(void *); extern int iscsi_target_rx_thread(void *); -- cgit v1.2.3-55-g7522