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path: root/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
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Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c')
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 66da31f30d3e..92c0ddb602ca 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -222,8 +222,11 @@ EXPORT_SYMBOL(otx2_set_mac_address);
int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
{
struct nix_frs_cfg *req;
+ u16 maxlen;
int err;
+ maxlen = otx2_get_max_mtu(pfvf) + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
+
mutex_lock(&pfvf->mbox.lock);
req = otx2_mbox_alloc_msg_nix_set_hw_frs(&pfvf->mbox);
if (!req) {
@@ -233,6 +236,10 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
req->maxlen = pfvf->netdev->mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
+ /* Use max receive length supported by hardware for loopback devices */
+ if (is_otx2_lbkvf(pfvf->pdev))
+ req->maxlen = maxlen;
+
err = otx2_sync_mbox_msg(&pfvf->mbox);
mutex_unlock(&pfvf->mbox.lock);
return err;