diff mbox series

[v2,01/20] bus/fslmc: fix to use ci value for qbman 5.0

Message ID 20210211141620.12482-2-hemant.agrawal@nxp.com
State Superseded
Headers show
Series NXP DPAAx ethernet PMD changes | expand

Commit Message

Hemant Agrawal Feb. 11, 2021, 2:16 p.m. UTC 
From: Youri Querry <youri.querry_1@nxp.com>


Random portal hangs observed on device with QBMAN 5.0

This fixes few random packet hang issues in event mode.
Few things fixed it.
1. generally, pi == ci, no need for extra checks.
2. the proper initilizations in init with ci helped

Fixes: 1b49352f41be ("bus/fslmc: rename portal pi index to consumer index")
Cc: stable@dpdk.org

Signed-off-by: Youri Querry <youri.querry_1@nxp.com>

Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>

---
 drivers/bus/fslmc/qbman/qbman_portal.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

-- 
2.17.1
diff mbox series

Patch

diff --git a/drivers/bus/fslmc/qbman/qbman_portal.c b/drivers/bus/fslmc/qbman/qbman_portal.c
index 77c9d508c4..aedcad9258 100644
--- a/drivers/bus/fslmc/qbman/qbman_portal.c
+++ b/drivers/bus/fslmc/qbman/qbman_portal.c
@@ -339,17 +339,9 @@  struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
 	eqcr_pi = qbman_cinh_read(&p->sys, QBMAN_CINH_SWP_EQCR_PI);
 	p->eqcr.pi = eqcr_pi & p->eqcr.pi_ci_mask;
 	p->eqcr.pi_vb = eqcr_pi & QB_VALID_BIT;
-	if ((p->desc.qman_version & QMAN_REV_MASK) >= QMAN_REV_5000
-			&& (d->cena_access_mode == qman_cena_fastest_access))
-		p->eqcr.ci = qbman_cinh_read(&p->sys, QBMAN_CINH_SWP_EQCR_PI)
-					     & p->eqcr.pi_ci_mask;
-	else
-		p->eqcr.ci = qbman_cinh_read(&p->sys, QBMAN_CINH_SWP_EQCR_CI)
-					     & p->eqcr.pi_ci_mask;
-	p->eqcr.available = p->eqcr.pi_ring_size -
-				qm_cyc_diff(p->eqcr.pi_ring_size,
-				p->eqcr.ci & (p->eqcr.pi_ci_mask<<1),
-				p->eqcr.pi & (p->eqcr.pi_ci_mask<<1));
+	p->eqcr.ci = qbman_cinh_read(&p->sys, QBMAN_CINH_SWP_EQCR_CI)
+			& p->eqcr.pi_ci_mask;
+	p->eqcr.available = p->eqcr.pi_ring_size;
 
 	portal_idx_map[p->desc.idx] = p;
 	return p;