Reuse the maximum support HW MTU value that is fetch during probe.
Instead of fetching through mbox each time mtu is changed as the
value is fixed for interface.
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
---
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c | 4 ++--
drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h | 1 +
drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 1 +
drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 1 +
4 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
index 87d5776e3b88..34e76cfd941b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c
@@ -227,7 +227,7 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
u16 maxlen;
int err;
- maxlen = otx2_get_max_mtu(pfvf) + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
+ maxlen = pfvf->hw.max_mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
mutex_lock(&pfvf->mbox.lock);
req = otx2_mbox_alloc_msg_nix_set_hw_frs(&pfvf->mbox);
@@ -236,7 +236,7 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
return -ENOMEM;
}
- req->maxlen = pfvf->netdev->mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
+ req->maxlen = mtu + OTX2_ETH_HLEN + OTX2_HW_TIMESTAMP_LEN;
/* Use max receive length supported by hardware for loopback devices */
if (is_otx2_lbkvf(pfvf->pdev))
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
index df548aeffecf..b36b87dae2cb 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h
@@ -228,6 +228,7 @@ struct otx2_hw {
u16 txschq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC];
u16 matchall_ipolicer;
u32 dwrr_mtu;
+ u32 max_mtu;
u8 smq_link_type;
/* HW settings, coalescing etc */
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index b7082a154c34..962583277f7b 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -3104,6 +3104,7 @@ static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id)
netdev->min_mtu = OTX2_MIN_MTU;
netdev->max_mtu = otx2_get_max_mtu(pf);
+ hw->max_mtu = netdev->max_mtu;
/* reset CGX/RPM MAC stats */
otx2_reset_mac_stats(pf);
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
index 99fcc5661674..79a8acac6283 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
@@ -671,6 +671,7 @@ static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
netdev->min_mtu = OTX2_MIN_MTU;
netdev->max_mtu = otx2_get_max_mtu(vf);
+ hw->max_mtu = netdev->max_mtu;
/* To distinguish, for LBK VFs set netdev name explicitly */
if (is_otx2_lbkvf(vf->pdev)) {
--
2.25.1