Commit fb3269ba authored by Quinn Tran's avatar Quinn Tran Committed by Nicholas Bellinger
Browse files

qla2xxx: Add selective command queuing 



queue work element to specific process lessen cache miss

Signed-off-by: default avatarQuinn Tran <quinn.tran@qlogic.com>
Signed-off-by: default avatarHimanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent cdb898c5

drivers/scsi/qla2xxx/qla_isr.c

+1 −1
Original line number Diff line number Diff line
@@ -3302,7 +3302,7 @@ static void qla_irq_affinity_notify(struct irq_affinity_notify *notify, 
	}

}



void qla_irq_affinity_release(struct kref *ref)

static void qla_irq_affinity_release(struct kref *ref)

{

	struct irq_affinity_notify *notify =

		container_of(ref, struct irq_affinity_notify, kref);

drivers/scsi/qla2xxx/qla_target.c

+12 −1
Original line number Diff line number Diff line
@@ -3982,13 +3982,24 @@ static int qlt_handle_cmd_for_atio(struct scsi_qla_host *vha, 


	cmd->cmd_in_wq = 1;

	cmd->cmd_flags |= BIT_0;

	cmd->se_cmd.cpuid = -1;



	spin_lock(&vha->cmd_list_lock);

	list_add_tail(&cmd->cmd_list, &vha->qla_cmd_list);

	spin_unlock(&vha->cmd_list_lock);



	INIT_WORK(&cmd->work, qlt_do_work);

	if (ha->msix_count) {

		cmd->se_cmd.cpuid = ha->tgt.rspq_vector_cpuid;

		if (cmd->atio.u.isp24.fcp_cmnd.rddata)

			queue_work_on(smp_processor_id(), qla_tgt_wq,

			    &cmd->work);

		else

			queue_work_on(cmd->se_cmd.cpuid, qla_tgt_wq,

			    &cmd->work);

	} else {

		queue_work(qla_tgt_wq, &cmd->work);

	}

	return 0;



}

drivers/scsi/qla2xxx/tcm_qla2xxx.c

+2 −2
Original line number Diff line number Diff line
@@ -299,7 +299,7 @@ static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd) 
	cmd->vha->tgt_counters.core_qla_free_cmd++;

	cmd->cmd_in_wq = 1;

	INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);

	queue_work(tcm_qla2xxx_free_wq, &cmd->work);

	queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);

}



/*
@@ -504,7 +504,7 @@ static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) 
	cmd->cmd_flags |= BIT_10;

	cmd->cmd_in_wq = 1;

	INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);

	queue_work(tcm_qla2xxx_free_wq, &cmd->work);

	queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);

}



static void tcm_qla2xxx_handle_dif_work(struct work_struct *work)

drivers/target/target_core_transport.c

+4 −1
Original line number Diff line number Diff line
@@ -715,7 +715,10 @@ 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

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

}

EXPORT_SYMBOL(target_complete_cmd);

include/target/target_core_base.h

+1 −0
Original line number Diff line number Diff line
@@ -528,6 +528,7 @@ struct se_cmd { 
	unsigned int		t_prot_nents;

	sense_reason_t		pi_err;

	sector_t		bad_sector;

	int			cpuid;

};



struct se_ua {

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