* [dpdk-stable] [PATCH v1 1/8] bus/fslmc: fix atomic queues on nxp lx2 platform
[not found] <20200911075911.3214-1-sachin.saxena@oss.nxp.com>
@ 2020-09-11 7:59 ` Sachin Saxena (OSS)
0 siblings, 0 replies; only message in thread
From: Sachin Saxena (OSS) @ 2020-09-11 7:59 UTC (permalink / raw)
To: dev, ferruh.yigit; +Cc: stable
From: Youri Querry <youri.querry_1@nxp.com>
Traffic was stalling after few packet while running l2fwd-event
in atomic mode on LX2 platform. It was due to wrong dca setting
while enqueuing packets to EQCR.
This patch fixes the issue by writing correct dca setting.
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>
Signed-off-by: Rohit Raj <rohit.raj@nxp.com>
---
drivers/bus/fslmc/qbman/qbman_portal.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/fslmc/qbman/qbman_portal.c b/drivers/bus/fslmc/qbman/qbman_portal.c
index 0a2af7be4..77c9d508c 100644
--- a/drivers/bus/fslmc/qbman/qbman_portal.c
+++ b/drivers/bus/fslmc/qbman/qbman_portal.c
@@ -1201,6 +1201,8 @@ static int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
memcpy(&p[1], &cl[1], 28);
memcpy(&p[8], &fd[i], sizeof(*fd));
+ p[0] = cl[0] | s->eqcr.pi_vb;
+
if (flags && (flags[i] & QBMAN_ENQUEUE_FLAG_DCA)) {
struct qbman_eq_desc *d = (struct qbman_eq_desc *)p;
@@ -1208,7 +1210,6 @@ static int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
((flags[i]) & QBMAN_EQCR_DCA_IDXMASK);
}
eqcr_pi++;
- p[0] = cl[0] | s->eqcr.pi_vb;
if (!(eqcr_pi & half_mask))
s->eqcr.pi_vb ^= QB_VALID_BIT;
--
2.28.0
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