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From: Ajit Khaparde <ajit.khaparde@broadcom.com>
To: dev@dpdk.org
Cc: ferruh.yigit@intel.com, stable@dpdk.org
Subject: [dpdk-dev] [PATCH v2 17/23] net/bnxt: fix set MTU
Date: Thu, 28 Jun 2018 13:15:43 -0700	[thread overview]
Message-ID: <20180628201549.3507-18-ajit.khaparde@broadcom.com> (raw)
In-Reply-To: <20180628201549.3507-1-ajit.khaparde@broadcom.com>

There is no need to update bnxt_hwrm_vnic_plcmode_cfg if new MTU is
not greater than the max data the mbuf can accommodate.

Fixes: daef48efe5e5 ("net/bnxt: support set MTU")
Cc: stable@dpdk.org

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
--
v1->v2: update commit log
---
 drivers/net/bnxt/bnxt_ethdev.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index ab3f5c8e7..fe95e01ca 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -1581,6 +1581,7 @@ static int bnxt_mtu_set_op(struct rte_eth_dev *eth_dev, uint16_t new_mtu)
 
 	for (i = 0; i < bp->nr_vnics; i++) {
 		struct bnxt_vnic_info *vnic = &bp->vnic_info[i];
+		uint16_t size = 0;
 
 		vnic->mru = bp->eth_dev->data->mtu + ETHER_HDR_LEN +
 					ETHER_CRC_LEN + VLAN_TAG_SIZE * 2;
@@ -1588,9 +1589,14 @@ static int bnxt_mtu_set_op(struct rte_eth_dev *eth_dev, uint16_t new_mtu)
 		if (rc)
 			break;
 
-		rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
-		if (rc)
-			return rc;
+		size = rte_pktmbuf_data_room_size(bp->rx_queues[0]->mb_pool);
+		size -= RTE_PKTMBUF_HEADROOM;
+
+		if (size < new_mtu) {
+			rc = bnxt_hwrm_vnic_plcmode_cfg(bp, vnic);
+			if (rc)
+				return rc;
+		}
 	}
 
 	return rc;
-- 
2.15.2 (Apple Git-101.1)

  parent reply	other threads:[~2018-06-28 20:15 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-19 21:30 [dpdk-dev] [PATCH 00/31] bnxt patchset Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 01/31] net/bnxt: fix clear port stats Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 02/31] net/bnxt: add Tx batching support Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 03/31] net/bnxt: Rx processing optimization Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 04/31] net/bnxt: set min and max descriptor count for Tx and Rx rings Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 05/31] net/bnxt: fix dev close operation Ajit Khaparde
2018-06-26 15:28   ` Ferruh Yigit
2018-06-28 20:16     ` Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 06/31] net/bnxt: set ring coalesce parameters for Stratus NIC Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 07/31] net/bnxt: fix HW Tx checksum offload check Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 08/31] net/bnxt: add support for VF id 0xd800 Ajit Khaparde
2018-06-26 15:28   ` Ferruh Yigit
2018-06-28 20:14     ` Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 09/31] net/bnxt: fix rx/tx queue start/stop operations Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 10/31] net/bnxt: code cleanup style of bnxt cpr Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 11/31] net/bnxt: code cleanup style of bnxt rxr Ajit Khaparde
2018-06-26 15:29   ` Ferruh Yigit
2018-06-19 21:30 ` [dpdk-dev] [PATCH 12/31] net/bnxt: code cleanup style of rte pmd bnxt file Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 13/31] net/bnxt: code cleanup style of bnxt stats Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 14/31] net/bnxt: code cleanup style of bnxt vnic Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 15/31] net/bnxt: code cleanup style of bnxt txq Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 16/31] net/bnxt: code cleanup style of bnxt rxq Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 17/31] net/bnxt: code cleanup style of bnxt vnic Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 18/31] net/bnxt: code cleanup style of bnxt txr Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 19/31] net/bnxt: code cleanup style of bnxt ring Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 20/31] net/bnxt: code cleanup style of bnxt ethdev Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 21/31] net/bnxt: move function check zero bytes to bnxt util.h Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 22/31] net/bnxt: filter/flow refactoring Ajit Khaparde
2018-06-26 15:29   ` Ferruh Yigit
2018-06-19 21:30 ` [dpdk-dev] [PATCH 23/31] net/bnxt: check for invalid vnic id Ajit Khaparde
2018-06-26 15:30   ` Ferruh Yigit
2018-06-19 21:30 ` [dpdk-dev] [PATCH 24/31] net/bnxt: update HWRM API to v1.9.2.9 Ajit Khaparde
2018-06-26 15:30   ` Ferruh Yigit
2018-06-28 20:14     ` Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 25/31] net/bnxt: fix Tx with multiple mbuf Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 26/31] net/bnxt: Revert reset of L2 filter id in clear_ntuple_filter Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 27/31] net/bnxt: check filter type before clearing it Ajit Khaparde
2018-06-26 15:30   ` Ferruh Yigit
2018-06-19 21:30 ` [dpdk-dev] [PATCH 28/31] net/bnxt: fix set MTU Ajit Khaparde
2018-06-26 15:30   ` Ferruh Yigit
2018-06-28 20:13     ` Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 29/31] net/bnxt: fix incorrect IO address handling in Tx Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 30/31] net/bnxt: allocate RSS context only if RSS mode is enabled Ajit Khaparde
2018-06-19 21:30 ` [dpdk-dev] [PATCH 31/31] net/bnxt: fix to move a flow to a different queue Ajit Khaparde
2018-06-26 15:27 ` [dpdk-dev] [PATCH 00/31] bnxt patchset Ferruh Yigit
2018-06-28 20:15   ` Ajit Khaparde
2018-06-28 20:15   ` [dpdk-dev] [PATCH v2 00/23] " Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 01/23] net/bnxt: fix clear port stats Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 02/23] net/bnxt: add Tx batching support Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 03/23] net/bnxt: optimize receive processing code Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 04/23] net/bnxt: set MIN/MAX descriptor count fox Tx and Rx Rings Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 05/23] net/bnxt: fix dev close operation Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 06/23] net/bnxt: set ring coalesce parameters for Stratus NIC Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 07/23] net/bnxt: fix HW Tx checksum offload check Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 08/23] net/bnxt: add support for VF id 0xd800 Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 09/23] net/bnxt: fix Rx/Tx queue start/stop operations Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 10/23] net/bnxt: move function check zero bytes to bnxt util.h Ajit Khaparde
2018-07-02 12:20       ` Ferruh Yigit
2018-07-02 12:55         ` Ferruh Yigit
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 11/23] net/bnxt: refactor filter/flow Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 12/23] net/bnxt: check for invalid vnic id Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 13/23] net/bnxt: update HWRM API to v1.9.2.9 Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 14/23] net/bnxt: fix Tx with multiple mbuf Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 15/23] net/bnxt: revert reset of L2 filter id Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 16/23] net/bnxt: check filter type before clearing it Ajit Khaparde
2018-06-28 20:15     ` Ajit Khaparde [this message]
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 18/23] net/bnxt: fix incorrect IO address handling in Tx Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 19/23] net/bnxt: allocate RSS context only if RSS mode is enabled Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 20/23] net/bnxt: fix to move a flow to a different queue Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 21/23] net/bnxt: check VF resources if resource manager is enabled Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 22/23] net/bnxt: fix Rx ring count limitation Ajit Khaparde
2018-06-28 20:15     ` [dpdk-dev] [PATCH v2 23/23] net/bnxt: use correct flags during VLAN configuration Ajit Khaparde
2018-07-02 15:48     ` [dpdk-dev] [PATCH v2 00/23] bnxt patchset Ferruh Yigit

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