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dpaa: Avoid QMan work queue

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This commit is contained in:
Sebastian Huber 2017-05-18 11:50:43 +02:00
parent ed254d58e1
commit 96da40c0c4
1 changed files with 32 additions and 6 deletions
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38
linux/drivers/soc/fsl/qbman/qman.c
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@ -957,8 +957,10 @@ struct qman_portal {
struct list_head cgr_cbs;
/* list lock */
spinlock_t cgr_lock;
#ifndef __rtems__
struct work_struct congestion_work;
struct work_struct mr_work;
#endif /* __rtems__ */
char irqname[MAX_IRQNAME];
};
@ -980,13 +982,17 @@ static inline void put_affine_portal(void)
put_cpu_var(qman_affine_portal);
}
#ifndef __rtems__
static struct workqueue_struct *qm_portal_wq;
#endif /* __rtems__ */
int qman_wq_alloc(void)
{
#ifndef __rtems__
qm_portal_wq = alloc_workqueue("qman_portal_wq", 0, 1);
if (!qm_portal_wq)
return -ENOMEM;
#endif /* __rtems__ */
return 0;
}
@ -1056,8 +1062,10 @@ static u32 fq_to_tag(struct qman_fq *fq)
static u32 __poll_portal_slow(struct qman_portal *p, u32 is);
static inline unsigned int __poll_portal_fast(struct qman_portal *p,
unsigned int poll_limit);
#ifndef __rtems__
static void qm_congestion_task(struct work_struct *work);
static void qm_mr_process_task(struct work_struct *work);
#endif /* __rtems__ */
static irqreturn_t portal_isr(int irq, void *ptr)
{
@ -1178,8 +1186,10 @@ static int qman_create_portal(struct qman_portal *portal,
qman_cgrs_fill(&portal->cgrs[0]);
INIT_LIST_HEAD(&portal->cgr_cbs);
spin_lock_init(&portal->cgr_lock);
#ifndef __rtems__
INIT_WORK(&portal->congestion_work, qm_congestion_task);
INIT_WORK(&portal->mr_work, qm_mr_process_task);
#endif /* __rtems__ */
portal->bits = 0;
portal->sdqcr = QM_SDQCR_SOURCE_CHANNELS | QM_SDQCR_COUNT_UPTO3 |
QM_SDQCR_DEDICATED_PRECEDENCE | QM_SDQCR_TYPE_PRIO_QOS |
@ -1356,10 +1366,15 @@ static inline void fq_state_change(struct qman_portal *p, struct qman_fq *fq,
}
}
#ifndef __rtems__
static void qm_congestion_task(struct work_struct *work)
{
struct qman_portal *p = container_of(work, struct qman_portal,
congestion_work);
#else /* __rtems__ */
static void qm_congestion_task(struct qman_portal *p)
{
#endif /* __rtems__ */
struct qman_cgrs rr, c;
union qm_mc_result *mcr;
struct qman_cgr *cgr;
@ -1388,15 +1403,22 @@ static void qm_congestion_task(struct work_struct *work)
qman_p_irqsource_add(p, QM_PIRQ_CSCI);
}
#ifndef __rtems__
static void qm_mr_process_task(struct work_struct *work)
{
struct qman_portal *p = container_of(work, struct qman_portal,
mr_work);
#else /* __rtems__ */
static void qm_mr_process_task(struct qman_portal *p)
{
#endif /* __rtems__ */
const union qm_mr_entry *msg;
struct qman_fq *fq;
u8 verb, num = 0;
#ifndef __rtems__
preempt_disable();
#endif /* __rtems__ */
while (1) {
qm_mr_pvb_update(&p->p);
@ -1438,13 +1460,7 @@ static void qm_mr_process_task(struct work_struct *work)
} else {
/* Its a software ERN */
fq = tag_to_fq(be32_to_cpu(msg->ern.tag));
#ifdef __rtems__
preempt_enable();
#endif /* __rtems__ */
fq->cb.ern(p, fq, msg);
#ifdef __rtems__
preempt_disable();
#endif /* __rtems__ */
}
num++;
qm_mr_next(&p->p);
@ -1452,15 +1468,21 @@ static void qm_mr_process_task(struct work_struct *work)
qm_mr_cci_consume(&p->p, num);
qman_p_irqsource_add(p, QM_PIRQ_MRI);
#ifndef __rtems__
preempt_enable();
#endif /* __rtems__ */
}
static u32 __poll_portal_slow(struct qman_portal *p, u32 is)
{
if (is & QM_PIRQ_CSCI) {
qman_p_irqsource_remove(p, QM_PIRQ_CSCI);
#ifndef __rtems__
queue_work_on(smp_processor_id(), qm_portal_wq,
&p->congestion_work);
#else /* __rtems__ */
qm_congestion_task(p);
#endif /* __rtems__ */
}
if (is & QM_PIRQ_EQRI) {
@ -1471,8 +1493,12 @@ static u32 __poll_portal_slow(struct qman_portal *p, u32 is)
if (is & QM_PIRQ_MRI) {
qman_p_irqsource_remove(p, QM_PIRQ_MRI);
#ifndef __rtems__
queue_work_on(smp_processor_id(), qm_portal_wq,
&p->mr_work);
#else /* __rtems__ */
qm_mr_process_task(p);
#endif /* __rtems__ */
}
return is;