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Commit 9095adaa authored by Quinn Tran's avatar Quinn Tran Committed by Nicholas Bellinger
Browse files

target/transport: add flag to indicate CPU Affinity is observed 



Signed-off-by: default avatarQuinn Tran <quinn.tran@qlogic.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarBart Van Assche <bart.vanassche@sandisk.com>
Fixes: fb3269ba ("qla2xxx: Add selective command queuing")
Signed-off-by: default avatarHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 2e498f25

drivers/target/target_core_transport.c

+9 −3
Original line number Diff line number Diff line
@@ -711,10 +711,10 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status) 
	cmd->transport_state |= (CMD_T_COMPLETE | CMD_T_ACTIVE);

	spin_unlock_irqrestore(&cmd->t_state_lock, flags);



	if (cmd->cpuid == -1)

		queue_work(target_completion_wq, &cmd->work);

	else

	if (cmd->se_cmd_flags & SCF_USE_CPUID)

		queue_work_on(cmd->cpuid, target_completion_wq, &cmd->work);

	else

		queue_work(target_completion_wq, &cmd->work);

}

EXPORT_SYMBOL(target_complete_cmd);
@@ -1426,6 +1426,12 @@ int target_submit_cmd_map_sgls(struct se_cmd *se_cmd, struct se_session *se_sess 
	 */

	transport_init_se_cmd(se_cmd, se_tpg->se_tpg_tfo, se_sess,

				data_length, data_dir, task_attr, sense);



	if (flags & TARGET_SCF_USE_CPUID)

		se_cmd->se_cmd_flags |= SCF_USE_CPUID;

	else

		se_cmd->cpuid = WORK_CPU_UNBOUND;



	if (flags & TARGET_SCF_UNKNOWN_SIZE)

		se_cmd->unknown_data_length = 1;

	/*

include/target/target_core_base.h

+2 −0
Original line number Diff line number Diff line
@@ -141,6 +141,7 @@ enum se_cmd_flags_table { 
	SCF_COMPARE_AND_WRITE_POST	= 0x00100000,

	SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000,

	SCF_ACK_KREF			= 0x00400000,

	SCF_USE_CPUID			= 0x00800000,

};



/* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
@@ -188,6 +189,7 @@ enum target_sc_flags_table { 
	TARGET_SCF_BIDI_OP		= 0x01,

	TARGET_SCF_ACK_KREF		= 0x02,

	TARGET_SCF_UNKNOWN_SIZE		= 0x04,

	TARGET_SCF_USE_CPUID	= 0x08,

};



/* fabric independent task management function values */