kernel/linux.git/include/target/iscsi, branch v4.11.2

target/iscsi: split iscsit_check_dataout_hdr()

2017-02-19T05:24:15+00:00

Split iscsit_check_dataout_hdr() into two functions 1. __iscsit_check_dataout_hdr() - This function validates data out hdr. 2. iscsit_check_dataout_hdr() - This function finds iSCSI cmd using iscsit_find_cmd_from_itt_or_dump(), then it calls __iscsit_check_dataout_hdr() to validate iSCSI hdr. This split is required to support Chelsio T6 iSCSI DDP completion feature. T6 adapters reduce number of completions to host by generating single completion for all directly placed(DDP) iSCSI pdus in a sequence, DDP completion contains iSCSI hdr of the last pdu in a sequence. On receiving DDP completion cxgbit driver will first find iSCSI cmd using iscsit_find_cmd_from_itt_or_dump() then updates cmd->write_data_done, cmd->next_burst_len, cmd->data_sn and calls __iscsit_check_dataout_hdr() to validate iSCSI hdr. (Move XRDSL check ahead of itt lookup / dump - nab) Signed-off-by: Varun Prakash Signed-off-by: Bart Van Assche Signed-off-by: Nicholas Bellinger

target: Minimize #include directives

2016-12-09T18:22:28+00:00

Remove superfluous #include directives from the include/target/*.h files. Add missing #include directives to other *.h and *.c files. Use forward declarations for structures where possible. This change reduces the build time for make M=drivers/target on my laptop from 27.1s to 18.7s or by about 30%. Signed-off-by: Bart Van Assche Cc: Christoph Hellwig Cc: Bryant G. Ly

cxgbit: Use type ISCSI_CXGBIT + cxgbit tpg_np attribute

2016-05-17T05:23:59+00:00

Instead of having cxgbit use type ISCSI_HW_OFFLOAD + 'hw_offload' tpg_np attribute, it should be using it's own driver specific type + attribute Cc: Varun Prakash Cc: Hariprasad Shenai Cc: Christoph Hellwig Cc: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iscsi-target: Convert transport drivers to signal rdma_shutdown

2016-05-17T05:23:33+00:00

Instead of special casing the handful of callers that check for iser-target rdma verbs specific shutdown, use a simple flag at iscsit_transport->rdma_shutdown so each driver can signal this. Also, update iscsi-target/tcp + cxgbit to rdma_shutdown = false. Cc: Varun Prakash Cc: Hariprasad Shenai Cc: Christoph Hellwig Cc: Sagi Grimberg Signed-off-by: Nicholas Bellinger

iscsi-target: export symbols

2016-05-10T06:12:28+00:00

export symbols for ISCSI_HW_OFFLOAD transport drivers. Signed-off-by: Varun Prakash Signed-off-by: Nicholas Bellinger

iscsi-target: add new offload transport type

2016-05-10T06:12:18+00:00

Add new transport type ISCSI_HW_OFFLOAD, hw offload transport drivers will use this transport type. Signed-off-by: Varun Prakash Signed-off-by: Nicholas Bellinger

iscsi-target: move iscsit_thread_check_cpumask()

2016-05-10T06:12:09+00:00

Move iscsit_thread_check_cpumask() to header file so that ISCSI_HW_OFFLOAD and other transport drivers can call this function to ensure both tx and rx thread runs on same cpu. Signed-off-by: Varun Prakash Signed-off-by: Nicholas Bellinger

iscsi-target: add void (*iscsit_get_r2t_ttt)()

2016-05-10T06:12:08+00:00

Add void (*iscsit_get_r2t_ttt)() to struct iscsit_transport, iscsi-target uses this callback to get r2t->targ_xfer_tag. cxgbit.ko needs this callback for Direct Data Placement of Data Out pdus, adapter uses ttt in Data Out pdus for placing data directly in to the host buffers. Signed-off-by: Varun Prakash Signed-off-by: Nicholas Bellinger

iscsi-target: add int (*iscsit_validate_params)()

2016-05-10T06:12:08+00:00

Add int (*iscsit_validate_params)() to struct iscsit_transport, iscsi-target uses this callback for validating conn operational parameters. cxgbit.ko needs this callback to check and update the value of MAXXMITDATASEGMENTLENGTH. Signed-off-by: Varun Prakash Signed-off-by: Nicholas Bellinger

iscsi-target: add void (*iscsit_get_rx_pdu)()

2016-05-10T06:12:07+00:00

Add void (*iscsit_get_rx_pdu)() to struct iscsit_transport, iscsi-target uses this callback to receive and process Rx iSCSI PDUs. cxgbit.ko needs this callback to reuse iscsi-target Rx thread. Signed-off-by: Varun Prakash Acked-by: Sagi Grimberg Signed-off-by: Nicholas Bellinger