From: Rahul Gupta <rahul.gu...@broadcom.com>
In order to prevent reconfiguration of firmware resources for every
MTU change, configure FW with max MTU value using hwrm_func_cfg
to support all frame sizes. There is no need to overwrite the driver
level MTU variable data->mtu with the FW MTU.
Fixes: 905cd45ce30e ("net/bnxt: use configured MTU during load")
Cc: sta...@dpdk.org
Signed-off-by: Rahul Gupta <rahul.gu...@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.ko...@broadcom.com>
---
drivers/net/bnxt/bnxt_ethdev.c | 4 ----
drivers/net/bnxt/bnxt_hwrm.c | 3 +--
2 files changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 06033e3b8..b1e831b87 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -4582,10 +4582,6 @@ static int bnxt_init_fw(struct bnxt *bp)
if (rc)
bp->flags &= ~BNXT_FLAG_FW_CAP_ERROR_RECOVERY;
- if (mtu >= RTE_ETHER_MIN_MTU && mtu <= BNXT_MAX_MTU &&
- mtu != bp->eth_dev->data->mtu)
- bp->eth_dev->data->mtu = mtu;
-
bnxt_hwrm_port_led_qcaps(bp);
return 0;
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 1d3732eee..41730089b 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -2978,8 +2978,7 @@ static int bnxt_hwrm_pf_func_cfg(struct bnxt *bp, int
tx_rings)
}
req.flags = rte_cpu_to_le_32(bp->pf.func_cfg_flags);
- req.mtu = rte_cpu_to_le_16(RTE_MIN(bp->eth_dev->data->mtu,
- BNXT_MAX_MTU)); //FW adds hdr sizes
+ req.mtu = rte_cpu_to_le_16(BNXT_MAX_MTU);
req.mru = rte_cpu_to_le_16(BNXT_VNIC_MRU(bp->eth_dev->data->mtu));
req.num_rsscos_ctxs = rte_cpu_to_le_16(bp->max_rsscos_ctx);
req.num_stat_ctxs = rte_cpu_to_le_16(bp->max_stat_ctx);
--
2.21.0 (Apple Git-122.2)
