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path: root/drivers/net/ethernet/cavium/thunder/nic_main.c
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Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nic_main.c')
-rw-r--r--drivers/net/ethernet/cavium/thunder/nic_main.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c
index 25618d203931..2bbf4cbf08b2 100644
--- a/drivers/net/ethernet/cavium/thunder/nic_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nic_main.c
@@ -282,9 +282,14 @@ static void nic_set_tx_pkt_pad(struct nicpf *nic, int size)
u16 sdevid;
u64 lmac_cfg;
- /* Max value that can be set is 60 */
- if (size > 60)
- size = 60;
+ /* There is a issue in HW where-in while sending GSO sized
+ * pkts as part of TSO, if pkt len falls below this size
+ * NIC will zero PAD packet and also updates IP total length.
+ * Hence set this value to lessthan min pkt size of MAC+IP+TCP
+ * headers, BGX will do the padding to transmit 64 byte pkt.
+ */
+ if (size > 52)
+ size = 52;
pci_read_config_word(nic->pdev, PCI_SUBSYSTEM_ID, &sdevid);
/* 81xx's RGX has only one LMAC */