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authorJarod Wilson <jarod@redhat.com>2016-10-17 22:54:17 +0300
committerDavid S. Miller <davem@davemloft.net>2016-10-18 18:34:22 +0300
commit44770e1180decf9b483d9b537fdad385a4fbf462 (patch)
tree97dff06ab97f91387a88de2dfb3c6d959609d321 /drivers/net/ethernet/tehuti
parent1281a2c7b814cf5ccdafa49c1410dd5092da0542 (diff)
downloadlinux-44770e1180decf9b483d9b537fdad385a4fbf462.tar.xz
ethernet: use core min/max MTU checking
et131x: min_mtu 64, max_mtu 9216 altera_tse: min_mtu 64, max_mtu 1500 amd8111e: min_mtu 60, max_mtu 9000 bnad: min_mtu 46, max_mtu 9000 macb: min_mtu 68, max_mtu 1500 or 10240 depending on hardware capability xgmac: min_mtu 46, max_mtu 9000 cxgb2: min_mtu 68, max_mtu 9582 (pm3393) or 9600 (vsc7326) enic: min_mtu 68, max_mtu 9000 gianfar: min_mtu 50, max_mu 9586 hns_enet: min_mtu 68, max_mtu 9578 (v1) or 9706 (v2) ksz884x: min_mtu 60, max_mtu 1894 myri10ge: min_mtu 68, max_mtu 9000 natsemi: min_mtu 64, max_mtu 2024 nfp: min_mtu 68, max_mtu hardware-specific forcedeth: min_mtu 64, max_mtu 1500 or 9100, depending on hardware pch_gbe: min_mtu 46, max_mtu 10300 pasemi_mac: min_mtu 64, max_mtu 9000 qcaspi: min_mtu 46, max_mtu 1500 - remove qcaspi_netdev_change_mtu as it is now redundant rocker: min_mtu 68, max_mtu 9000 sxgbe: min_mtu 68, max_mtu 9000 stmmac: min_mtu 46, max_mtu depends on hardware tehuti: min_mtu 60, max_mtu 16384 - driver had no max mtu checking, but product docs say 16k jumbo packets are supported by the hardware netcp: min_mtu 68, max_mtu 9486 - remove netcp_ndo_change_mtu as it is now redundant via-velocity: min_mtu 64, max_mtu 9000 octeon: min_mtu 46, max_mtu 65370 CC: netdev@vger.kernel.org CC: Mark Einon <mark.einon@gmail.com> CC: Vince Bridgers <vbridger@opensource.altera.com> CC: Rasesh Mody <rasesh.mody@qlogic.com> CC: Nicolas Ferre <nicolas.ferre@atmel.com> CC: Santosh Raspatur <santosh@chelsio.com> CC: Hariprasad S <hariprasad@chelsio.com> CC: Christian Benvenuti <benve@cisco.com> CC: Sujith Sankar <ssujith@cisco.com> CC: Govindarajulu Varadarajan <_govind@gmx.com> CC: Neel Patel <neepatel@cisco.com> CC: Claudiu Manoil <claudiu.manoil@freescale.com> CC: Yisen Zhuang <yisen.zhuang@huawei.com> CC: Salil Mehta <salil.mehta@huawei.com> CC: Hyong-Youb Kim <hykim@myri.com> CC: Jakub Kicinski <jakub.kicinski@netronome.com> CC: Olof Johansson <olof@lixom.net> CC: Jiri Pirko <jiri@resnulli.us> CC: Byungho An <bh74.an@samsung.com> CC: Girish K S <ks.giri@samsung.com> CC: Vipul Pandya <vipul.pandya@samsung.com> CC: Giuseppe Cavallaro <peppe.cavallaro@st.com> CC: Alexandre Torgue <alexandre.torgue@st.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Wingman Kwok <w-kwok2@ti.com> CC: Murali Karicheri <m-karicheri2@ti.com> CC: Francois Romieu <romieu@fr.zoreil.com> Signed-off-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/tehuti')
-rw-r--r--drivers/net/ethernet/tehuti/tehuti.c14
-rw-r--r--drivers/net/ethernet/tehuti/tehuti.h3
2 files changed, 7 insertions, 10 deletions
diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c
index 7108c68f16d3..baa3e4a5731c 100644
--- a/drivers/net/ethernet/tehuti/tehuti.c
+++ b/drivers/net/ethernet/tehuti/tehuti.c
@@ -761,16 +761,6 @@ static int bdx_change_mtu(struct net_device *ndev, int new_mtu)
{
ENTER;
- if (new_mtu == ndev->mtu)
- RET(0);
-
- /* enforce minimum frame size */
- if (new_mtu < ETH_ZLEN) {
- netdev_err(ndev, "mtu %d is less then minimal %d\n",
- new_mtu, ETH_ZLEN);
- RET(-EINVAL);
- }
-
ndev->mtu = new_mtu;
if (netif_running(ndev)) {
bdx_close(ndev);
@@ -2057,6 +2047,10 @@ bdx_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
#ifdef BDX_LLTX
ndev->features |= NETIF_F_LLTX;
#endif
+ /* MTU range: 60 - 16384 */
+ ndev->min_mtu = ETH_ZLEN;
+ ndev->max_mtu = BDX_MAX_MTU;
+
spin_lock_init(&priv->tx_lock);
/*bdx_hw_reset(priv); */
diff --git a/drivers/net/ethernet/tehuti/tehuti.h b/drivers/net/ethernet/tehuti/tehuti.h
index 709ebd6e28b4..8e7b4c9abf21 100644
--- a/drivers/net/ethernet/tehuti/tehuti.h
+++ b/drivers/net/ethernet/tehuti/tehuti.h
@@ -74,6 +74,9 @@
* ifcontig eth1 txqueuelen 3000 - to change it at runtime */
#define BDX_NDEV_TXQ_LEN 3000
+/* Max MTU for Jumbo Frame mode, per tehutinetworks.net Features FAQ is 16k */
+#define BDX_MAX_MTU (16 * 1024)
+
#define FIFO_SIZE 4096
#define FIFO_EXTRA_SPACE 1024