[dpdk-dev] [PATCH v3] net/octeontx2: fix PTP and HIGIG2 coexistence

[kirankumark]

From: Kiran Kumar K <kirankum...@marvell.com>

octeontx2 PMD does not support both PTP and HIGIG2 together.
added a check to enforce this and updated the Rx offload capabilities when
Higig2 mode enabled

fixes: 602009ee2dfb (net/octeontx2: support HIGIG2)

Signed-off-by: Kiran Kumar K <kirankum...@marvell.com>
---
V3 Changes:
* Fixed commit log

V2 Chanhes:
* Fixed error message

 drivers/net/octeontx2/otx2_ethdev.c | 9 ++++++++-
 drivers/net/octeontx2/otx2_ptp.c    | 5 +++++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/net/octeontx2/otx2_ethdev.c 
b/drivers/net/octeontx2/otx2_ethdev.c
index ed329273d..2e91a5ab7 100644
--- a/drivers/net/octeontx2/otx2_ethdev.c
+++ b/drivers/net/octeontx2/otx2_ethdev.c
@@ -18,7 +18,8 @@ nix_get_rx_offload_capa(struct otx2_eth_dev *dev)
 {
        uint64_t capa = NIX_RX_OFFLOAD_CAPA;

-       if (otx2_dev_is_vf(dev))
+       if (otx2_dev_is_vf(dev) ||
+           dev->npc_flow.switch_header_type == OTX2_PRIV_FLAGS_HIGIG)
                capa &= ~DEV_RX_OFFLOAD_TIMESTAMP;

        return capa;
@@ -1641,6 +1642,12 @@ otx2_nix_configure(struct rte_eth_dev *eth_dev)
                goto fail_offloads;
        }

+       if (dev->ptp_en &&
+           dev->npc_flow.switch_header_type == OTX2_PRIV_FLAGS_HIGIG) {
+               otx2_err("Both PTP and switch header enabled");
+               goto free_nix_lf;
+       }
+
        rc = nix_lf_switch_header_type_enable(dev);
        if (rc) {
                otx2_err("Failed to enable switch type nix_lf rc=%d", rc);
diff --git a/drivers/net/octeontx2/otx2_ptp.c b/drivers/net/octeontx2/otx2_ptp.c
index f34b9339c..ae5a2b7cd 100644
--- a/drivers/net/octeontx2/otx2_ptp.c
+++ b/drivers/net/octeontx2/otx2_ptp.c
@@ -221,6 +221,11 @@ otx2_nix_timesync_enable(struct rte_eth_dev *eth_dev)
                return -EINVAL;
        }

+       if (dev->npc_flow.switch_header_type == OTX2_PRIV_FLAGS_HIGIG) {
+               otx2_err("Both PTP and switch header enabled");
+               return -EINVAL;
+       }
+
        /* Allocating a iova address for tx tstamp */
        const struct rte_memzone *ts;
        ts = rte_eth_dma_zone_reserve(eth_dev, "otx2_ts",
--
2.17.1