From 21f2696abe791fec049d9b83bc9f55a4c541f946 Mon Sep 17 00:00:00 2001
From: Ronak Doshi <doshir@vmware.com>
Date: Fri, 16 Jul 2021 15:36:25 -0700
Subject: [PATCH 6/7] vmxnet3: increase maximum configurable mtu to 9190
Git-commit: 8c5663e461e6914304bbbf2c1cf67e5dce18740f
Patch-mainline: v5.15-rc1
References: bsc#1190406
This patch increases the maximum configurable mtu to 9190
to accommodate jumbo packets of overlay traffic.
Signed-off-by: Ronak Doshi <doshir@vmware.com>
Acked-by: Guolin Yang <gyang@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/vmxnet3/vmxnet3_defs.h | 1 +
drivers/net/vmxnet3/vmxnet3_drv.c | 7 +++++--
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/vmxnet3/vmxnet3_defs.h b/drivers/net/vmxnet3/vmxnet3_defs.h
index bc82bbbcb1ab..74d4e8bc4abc 100644
--- a/drivers/net/vmxnet3/vmxnet3_defs.h
+++ b/drivers/net/vmxnet3/vmxnet3_defs.h
@@ -795,6 +795,7 @@ struct Vmxnet3_DriverShared {
((vfTable[vid >> 5] & (1 << (vid & 31))) != 0)
#define VMXNET3_MAX_MTU 9000
+#define VMXNET3_V6_MAX_MTU 9190
#define VMXNET3_MIN_MTU 60
#define VMXNET3_LINK_UP (10000 << 16 | 1) /* 10 Gbps, up */
diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c
index 2579df9e4803..76f0ab6c2958 100644
--- a/drivers/net/vmxnet3/vmxnet3_drv.c
+++ b/drivers/net/vmxnet3/vmxnet3_drv.c
@@ -3644,9 +3644,12 @@ vmxnet3_probe_device(struct pci_dev *pdev,
vmxnet3_set_ethtool_ops(netdev);
netdev->watchdog_timeo = 5 * HZ;
- /* MTU range: 60 - 9000 */
+ /* MTU range: 60 - 9190 */
netdev->min_mtu = VMXNET3_MIN_MTU;
- netdev->max_mtu = VMXNET3_MAX_MTU;
+ if (VMXNET3_VERSION_GE_6(adapter))
+ netdev->max_mtu = VMXNET3_V6_MAX_MTU;
+ else
+ netdev->max_mtu = VMXNET3_MAX_MTU;
INIT_WORK(&adapter->work, vmxnet3_reset_work);
set_bit(VMXNET3_STATE_BIT_QUIESCED, &adapter->state);
--
2.16.4