iscsi-target: add void (*iscsit_get_r2t_ttt)() (8567270d) · Commits · 戴 / test

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 <varun@chelsio.com> Signed-off-by:

Nicholas Bellinger <nab@linux-iscsi.org>

drivers/target/iscsi/iscsi_target.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -3039,6 +3039,9 @@ static int iscsit_send_r2t(
		int_to_scsilun(cmd->se_cmd.orig_fe_lun,
		(struct scsi_lun *)&hdr->lun);
		hdr->itt = cmd->init_task_tag;
		if (conn->conn_transport->iscsit_get_r2t_ttt)
		conn->conn_transport->iscsit_get_r2t_ttt(conn, cmd, r2t);
		else
		r2t->targ_xfer_tag = session_get_next_ttt(conn->sess);
		hdr->ttt = cpu_to_be32(r2t->targ_xfer_tag);
		hdr->statsn = cpu_to_be32(conn->stat_sn);

include/target/iscsi/iscsi_transport.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,8 @@ struct iscsit_transport {
		void (iscsit_release_cmd)(struct iscsi_conn , struct iscsi_cmd *);
		void (iscsit_get_rx_pdu)(struct iscsi_conn );
		int (iscsit_validate_params)(struct iscsi_conn );
		void (iscsit_get_r2t_ttt)(struct iscsi_conn , struct iscsi_cmd *,
		struct iscsi_r2t *);
		enum target_prot_op (iscsit_get_sup_prot_ops)(struct iscsi_conn );
		};

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