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qla2xxx: Add selective command queuing

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queue work element to specific process lessen cache miss

Signed-off-by: Quinn Tran <quinn.tran@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Quinn Tran 2015-12-17 14:57:06 -05:00 committed by Nicholas Bellinger
parent cdb898c52d
commit fb3269baf4
5 changed files with 20 additions and 5 deletions
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2
drivers/scsi/qla2xxx/qla_isr.c
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@ -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);

13
drivers/scsi/qla2xxx/qla_target.c
View File

@ -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);
queue_work(qla_tgt_wq, &cmd->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;
}

4
drivers/scsi/qla2xxx/tcm_qla2xxx.c
View File

@ -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)

5
drivers/target/target_core_transport.c
View File

@ -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);
queue_work(target_completion_wq, &cmd->work);
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);

1
include/target/target_core_base.h
View File

@ -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 {