p71924506
/
linux_old1
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

soc/qman: Fix accesses to fqid, cleanup 

Preventively mask every access to the 'fqid' h/w field,
since it is defined as a 24-bit field, for every h/w
descriptor.  Add generic accessors for this field to
ensure correct access.

Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
This commit is contained in:
Claudiu Manoil 2016-11-16 16:40:25 +02:00 committed by Scott Wood
parent 7ff07da015
commit d6753c7e65
2 changed files with 21 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/soc/fsl/qbman/qman.c
View File

@ -471,7 +471,7 @@ static inline void eqcr_commit_checks(struct qm_eqcr *eqcr)
{
DPAA_ASSERT(eqcr->busy);
DPAA_ASSERT(eqcr->cursor->orp == (eqcr->cursor->orp & 0x00ffffff));
DPAA_ASSERT(eqcr->cursor->fqid == (eqcr->cursor->fqid & 0x00ffffff));
DPAA_ASSERT(!(eqcr->cursor->fqid & ~QM_FQID_MASK));
DPAA_ASSERT(eqcr->available >= 1);
}
@ -1387,7 +1387,7 @@ static void qm_mr_process_task(struct work_struct *work)
case QM_MR_VERB_FQRN:
case QM_MR_VERB_FQRL:
/* Lookup in the retirement table */
fq = fqid_to_fq(msg->fq.fqid);
fq = fqid_to_fq(qm_fqid_get(&msg->fq));
if (WARN_ON(!fq))
break;
fq_state_change(p, fq, msg, verb);
@ -1755,7 +1755,7 @@ int qman_init_fq(struct qman_fq *fq, u32 flags, struct qm_mcc_initfq *opts)
mcc = qm_mc_start(&p->p);
if (opts)
mcc->initfq = *opts;
mcc->fq.fqid = fq->fqid;
qm_fqid_set(&mcc->fq, fq->fqid);
mcc->initfq.count = 0;
/*
* If the FQ does *not* have the TO_DCPORTAL flag, contextB is set as a
@ -1851,7 +1851,7 @@ int qman_schedule_fq(struct qman_fq *fq)
goto out;
}
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fq->fqid;
qm_fqid_set(&mcc->fq, fq->fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_SCHED);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
dev_err(p->config->dev, "ALTER_SCHED timeout\n");
@ -1894,7 +1894,7 @@ int qman_retire_fq(struct qman_fq *fq, u32 *flags)
goto out;
}
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fq->fqid;
qm_fqid_set(&mcc->fq, fq->fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_RETIRE);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
dev_crit(p->config->dev, "ALTER_RETIRE timeout\n");
@ -1937,7 +1937,7 @@ int qman_retire_fq(struct qman_fq *fq, u32 *flags)
msg.verb = QM_MR_VERB_FQRNI;
msg.fq.fqs = mcr->alterfq.fqs;
msg.fq.fqid = fq->fqid;
qm_fqid_set(&msg.fq, fq->fqid);
msg.fq.contextB = fq_to_tag(fq);
fq->cb.fqs(p, fq, &msg);
}
@ -1973,7 +1973,7 @@ int qman_oos_fq(struct qman_fq *fq)
goto out;
}
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fq->fqid;
qm_fqid_set(&mcc->fq, fq->fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_OOS);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
ret = -ETIMEDOUT;
@ -1999,7 +1999,7 @@ int qman_query_fq(struct qman_fq *fq, struct qm_fqd *fqd)
int ret = 0;
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fq->fqid;
qm_fqid_set(&mcc->fq, fq->fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
ret = -ETIMEDOUT;
@ -2025,7 +2025,7 @@ static int qman_query_fq_np(struct qman_fq *fq,
int ret = 0;
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fq->fqid;
qm_fqid_set(&mcc->fq, fq->fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
ret = -ETIMEDOUT;
@ -2206,7 +2206,7 @@ int qman_enqueue(struct qman_fq *fq, const struct qm_fd *fd)
if (unlikely(!eq))
goto out;
eq->fqid = fq->fqid;
qm_fqid_set(eq, fq->fqid);
eq->tag = fq_to_tag(fq);
eq->fd = *fd;
@ -2468,7 +2468,7 @@ static int _qm_dqrr_consume_and_match(struct qm_portal *p, u32 fqid, int s,
} while (wait && !dqrr);
while (dqrr) {
if (dqrr->fqid == fqid && (dqrr->stat & s))
if (qm_fqid_get(dqrr) == fqid && (dqrr->stat & s))
found = 1;
qm_dqrr_cdc_consume_1ptr(p, dqrr, 0);
qm_dqrr_pvb_update(p);
@ -2504,7 +2504,7 @@ static int qman_shutdown_fq(u32 fqid)
dev = p->config->dev;
/* Determine the state of the FQID */
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fqid;
qm_fqid_set(&mcc->fq, fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ_NP);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
dev_err(dev, "QUERYFQ_NP timeout\n");
@ -2519,7 +2519,7 @@ static int qman_shutdown_fq(u32 fqid)
/* Query which channel the FQ is using */
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fqid;
qm_fqid_set(&mcc->fq, fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_QUERYFQ);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
dev_err(dev, "QUERYFQ timeout\n");
@ -2539,7 +2539,7 @@ static int qman_shutdown_fq(u32 fqid)
case QM_MCR_NP_STATE_PARKED:
orl_empty = 0;
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fqid;
qm_fqid_set(&mcc->fq, fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_RETIRE);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
dev_err(dev, "QUERYFQ_NP timeout\n");
@ -2634,7 +2634,7 @@ static int qman_shutdown_fq(u32 fqid)
cpu_relax();
}
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fqid;
qm_fqid_set(&mcc->fq, fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_OOS);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
ret = -ETIMEDOUT;
@ -2654,7 +2654,7 @@ static int qman_shutdown_fq(u32 fqid)
case QM_MCR_NP_STATE_RETIRED:
/* Send OOS Command */
mcc = qm_mc_start(&p->p);
mcc->fq.fqid = fqid;
qm_fqid_set(&mcc->fq, fqid);
qm_mc_commit(&p->p, QM_MCC_VERB_ALTER_OOS);
if (!qm_mc_result_timeout(&p->p, &mcr)) {
ret = -ETIMEDOUT;

5
include/soc/fsl/qman.h
View File

@ -262,6 +262,11 @@ struct qm_dqrr_entry {
#define QM_DQRR_STAT_UNSCHEDULED 0x02 /* Unscheduled dequeue */
#define QM_DQRR_STAT_DQCR_EXPIRED 0x01 /* VDQCR or PDQCR expired*/
/* 'fqid' is a 24-bit field in every h/w descriptor */
#define QM_FQID_MASK GENMASK(23, 0)
#define qm_fqid_set(p, v) ((p)->fqid = ((v) & QM_FQID_MASK))
#define qm_fqid_get(p) ((p)->fqid & QM_FQID_MASK)
/* "ERN Message Response" */
/* "FQ State Change Notification" */
union qm_mr_entry {