remove outdated intel nic drivers

This commit is contained in:
Dietmar Maurer 2017-07-13 09:04:59 +02:00
parent d513484f62
commit 7beee5f3eb
12 changed files with 1 additions and 411 deletions

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@ -34,15 +34,6 @@ TOP=$(shell pwd)
KERNEL_CFG_ORG=config-${KERNEL_VER}.org KERNEL_CFG_ORG=config-${KERNEL_VER}.org
E1000EDIR=e1000e-3.3.5.3
E1000ESRC=${E1000EDIR}.tar.gz
IGBDIR=igb-5.3.5.4
IGBSRC=${IGBDIR}.tar.gz
IXGBEDIR=ixgbe-5.0.4
IXGBESRC=${IXGBEDIR}.tar.gz
SPLDIR=pkg-spl SPLDIR=pkg-spl
SPLSRC=submodules/zfs/pkg-spl.tar.gz SPLSRC=submodules/zfs/pkg-spl.tar.gz
ZFSDIR=pkg-zfs ZFSDIR=pkg-zfs
@ -150,19 +141,13 @@ abi-${KVNAME}: .compile_mark
abicheck: abi-${KVNAME} abi-previous abi-blacklist abicheck: abi-${KVNAME} abi-previous abi-blacklist
./abi-check abi-${KVNAME} abi-previous ${SKIPABI} ./abi-check abi-${KVNAME} abi-previous ${SKIPABI}
data: .compile_mark igb.ko ixgbe.ko e1000e.ko ${SPL_MODULES} ${ZFS_MODULES} data: .compile_mark ${SPL_MODULES} ${ZFS_MODULES}
rm -rf data tmp; mkdir -p tmp/lib/modules/${KVNAME} rm -rf data tmp; mkdir -p tmp/lib/modules/${KVNAME}
mkdir tmp/boot mkdir tmp/boot
install -m 644 ${KERNEL_SRC}/.config tmp/boot/config-${KVNAME} install -m 644 ${KERNEL_SRC}/.config tmp/boot/config-${KVNAME}
install -m 644 ${KERNEL_SRC}/System.map tmp/boot/System.map-${KVNAME} install -m 644 ${KERNEL_SRC}/System.map tmp/boot/System.map-${KVNAME}
install -m 644 ${KERNEL_SRC}/arch/${KERNEL_ARCH}/boot/bzImage tmp/boot/vmlinuz-${KVNAME} install -m 644 ${KERNEL_SRC}/arch/${KERNEL_ARCH}/boot/bzImage tmp/boot/vmlinuz-${KVNAME}
cd ${KERNEL_SRC}; make INSTALL_MOD_PATH=../tmp/ modules_install cd ${KERNEL_SRC}; make INSTALL_MOD_PATH=../tmp/ modules_install
## install latest ibg driver
install -m 644 igb.ko tmp/lib/modules/${KVNAME}/kernel/drivers/net/ethernet/intel/igb/
# install latest ixgbe driver
install -m 644 ixgbe.ko tmp/lib/modules/${KVNAME}/kernel/drivers/net/ethernet/intel/ixgbe/
# install latest e1000e driver
install -m 644 e1000e.ko tmp/lib/modules/${KVNAME}/kernel/drivers/net/ethernet/intel/e1000e/
# install zfs drivers # install zfs drivers
install -d -m 0755 tmp/lib/modules/${KVNAME}/zfs install -d -m 0755 tmp/lib/modules/${KVNAME}/zfs
install -m 644 ${SPL_MODULES} ${ZFS_MODULES} tmp/lib/modules/${KVNAME}/zfs install -m 644 ${SPL_MODULES} ${ZFS_MODULES} tmp/lib/modules/${KVNAME}/zfs
@ -242,36 +227,6 @@ ${KERNEL_SRC}/README ${KERNEL_CFG_ORG}: ${KERNEL_SRC_SUBMODULE} | submodules
sed -i ${KERNEL_SRC}/Makefile -e 's/^EXTRAVERSION.*$$/EXTRAVERSION=${EXTRAVERSION}/' sed -i ${KERNEL_SRC}/Makefile -e 's/^EXTRAVERSION.*$$/EXTRAVERSION=${EXTRAVERSION}/'
touch $@ touch $@
e1000e.ko e1000e: .compile_mark ${E1000ESRC}
rm -rf ${E1000EDIR}
tar xf ${E1000ESRC}
[ ! -e /lib/modules/${KVNAME}/build ] || (echo "please remove /lib/modules/${KVNAME}/build" && false)
cd ${E1000EDIR}; patch -p1 < ../intel-module-gcc6-compat.patch
cd ${E1000EDIR}; patch -p1 < ../e1000e_4.10_compat.patch
cd ${E1000EDIR}; patch -p1 < ../e1000e_4.10_max-mtu.patch
cd ${E1000EDIR}/src; make BUILD_KERNEL=${KVNAME} KSRC=${TOP}/${KERNEL_SRC}
cp ${E1000EDIR}/src/e1000e.ko e1000e.ko
igb.ko igb: .compile_mark ${IGBSRC}
rm -rf ${IGBDIR}
tar xf ${IGBSRC}
[ ! -e /lib/modules/${KVNAME}/build ] || (echo "please remove /lib/modules/${KVNAME}/build" && false)
cd ${IGBDIR}; patch -p1 < ../intel-module-gcc6-compat.patch
cd ${IGBDIR}; patch -p1 < ../igb_4.9_compat.patch
cd ${IGBDIR}; patch -p1 < ../igb_4.10_compat.patch
cd ${IGBDIR}; patch -p1 < ../igb_4.10_max-mtu.patch
cd ${IGBDIR}/src; make BUILD_KERNEL=${KVNAME} KSRC=${TOP}/${KERNEL_SRC}
cp ${IGBDIR}/src/igb.ko igb.ko
ixgbe.ko ixgbe: .compile_mark ${IXGBESRC}
rm -rf ${IXGBEDIR}
tar xf ${IXGBESRC}
[ ! -e /lib/modules/${KVNAME}/build ] || (echo "please remove /lib/modules/${KVNAME}/build" && false)
cd ${IXGBEDIR}; patch -p1 < ../ixgbe_4.10_compat.patch
cd ${IXGBEDIR}; patch -p1 < ../ixgbe_4.10_max-mtu.patch
cd ${IXGBEDIR}/src; make CFLAGS_EXTRA="-DIXGBE_NO_LRO" BUILD_KERNEL=${KVNAME} KSRC=${TOP}/${KERNEL_SRC}
cp ${IXGBEDIR}/src/ixgbe.ko ixgbe.ko
${SPL_MODULES}: .compile_mark ${SPLSRC} ${SPL_MODULES}: .compile_mark ${SPLSRC}
rm -rf ${SPLDIR} rm -rf ${SPLDIR}
tar xf ${SPLSRC} tar xf ${SPLSRC}

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@ -1,81 +0,0 @@
src/{netdev.c.orig => netdev.c} | 18 +++++++++---------
src/{ptp.c.orig => ptp.c} | 4 ++--
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/src/netdev.c.orig b/src/netdev.c
index 73b0f9a..480265b 100644
--- a/src/netdev.c.orig
+++ b/src/netdev.c
@@ -4833,24 +4833,24 @@ void e1000e_reinit_locked(struct e1000_adapter *adapter)
/**
* e1000e_sanitize_systim - sanitize raw cycle counter reads
* @hw: pointer to the HW structure
- * @systim: cycle_t value read, sanitized and returned
+ * @systim: u64 value read, sanitized and returned
*
* Errata for 82574/82583 possible bad bits read from SYSTIMH/L:
* check to see that the time is incrementing at a reasonable
* rate and is a multiple of incvalue.
**/
-static cycle_t e1000e_sanitize_systim(struct e1000_hw *hw, cycle_t systim)
+static u64 e1000e_sanitize_systim(struct e1000_hw *hw, u64 systim)
{
u64 time_delta, rem, temp;
- cycle_t systim_next;
+ u64 systim_next;
u32 incvalue;
int i;
incvalue = er32(TIMINCA) & E1000_TIMINCA_INCVALUE_MASK;
for (i = 0; i < E1000_MAX_82574_SYSTIM_REREADS; i++) {
/* latch SYSTIMH on read of SYSTIML */
- systim_next = (cycle_t)er32(SYSTIML);
- systim_next |= (cycle_t)er32(SYSTIMH) << 32;
+ systim_next = (u64)er32(SYSTIML);
+ systim_next |= (u64)er32(SYSTIMH) << 32;
time_delta = systim_next - systim;
temp = time_delta;
@@ -4872,13 +4872,13 @@ static cycle_t e1000e_sanitize_systim(struct e1000_hw *hw, cycle_t systim)
* e1000e_cyclecounter_read - read raw cycle counter (used by time counter)
* @cc: cyclecounter structure
**/
-static cycle_t e1000e_cyclecounter_read(const struct cyclecounter *cc)
+static u64 e1000e_cyclecounter_read(const struct cyclecounter *cc)
{
struct e1000_adapter *adapter = container_of(cc, struct e1000_adapter,
cc);
struct e1000_hw *hw = &adapter->hw;
u32 systimel, systimeh;
- cycle_t systim;
+ u64 systim;
/* SYSTIMH latching upon SYSTIML read does not work well.
* This means that if SYSTIML overflows after we read it but before
* we read SYSTIMH, the value of SYSTIMH has been incremented and we
@@ -4899,8 +4899,8 @@ static cycle_t e1000e_cyclecounter_read(const struct cyclecounter *cc)
systimel = systimel_2;
}
}
- systim = (cycle_t)systimel;
- systim |= (cycle_t)systimeh << 32;
+ systim = (u64)systimel;
+ systim |= (u64)systimeh << 32;
if (adapter->flags2 & FLAG2_CHECK_SYSTIM_OVERFLOW)
systim = e1000e_sanitize_systim(hw, systim);
diff --git a/src/ptp.c.orig b/src/ptp.c
index 00c419f..228adce 100644
--- a/src/ptp.c.orig
+++ b/src/ptp.c
@@ -136,8 +136,8 @@ static int e1000e_phc_get_syncdevicetime(ktime_t * device,
unsigned long flags;
int i;
u32 tsync_ctrl;
- cycle_t dev_cycles;
- cycle_t sys_cycles;
+ u64 dev_cycles;
+ u64 sys_cycles;
tsync_ctrl = er32(TSYNCTXCTL);
tsync_ctrl |= E1000_TSYNCTXCTL_START_SYNC |

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@ -1,37 +0,0 @@
diff --git a/src/netdev.c b/src/netdev.c
index 73b0f9a..aef1bc2 100644
--- a/src/netdev.c
+++ b/src/netdev.c
@@ -6724,19 +6724,12 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu)
int max_frame = new_mtu + VLAN_ETH_HLEN + ETH_FCS_LEN;
/* Jumbo frame support */
- if ((max_frame > (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN)) &&
+ if ((new_mtu > ETH_DATA_LEN) &&
!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
e_err("Jumbo Frames not supported.\n");
return -EINVAL;
}
- /* Supported frame sizes */
- if ((new_mtu < (VLAN_ETH_ZLEN + ETH_FCS_LEN)) ||
- (max_frame > adapter->max_hw_frame_size)) {
- e_err("Unsupported MTU setting\n");
- return -EINVAL;
- }
-
/* Jumbo frame workaround on 82579 and newer requires CRC be stripped */
if ((adapter->hw.mac.type >= e1000_pch2lan) &&
!(adapter->flags2 & FLAG2_CRC_STRIPPING) &&
@@ -8262,6 +8255,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
#endif /* HAVE_NETDEV_VLAN_FEATURES */
}
+ /* MTU range: 68 - max_hw_frame_size */
+ netdev->min_mtu = ETH_MIN_MTU;
+ netdev->max_mtu = adapter->max_hw_frame_size -
+ (VLAN_ETH_HLEN + ETH_FCS_LEN);
+
if (e1000e_enable_mng_pass_thru(&adapter->hw))
adapter->flags |= FLAG_MNG_PT_ENABLED;

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@ -1,25 +0,0 @@
src/{igb_ptp.c.orig => igb_ptp.c} | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/igb_ptp.c.orig b/src/igb_ptp.c
index 744fa65..f334ac7 100644
--- a/src/igb_ptp.c.orig
+++ b/src/igb_ptp.c
@@ -93,7 +93,7 @@
* SYSTIM read access for the 82576
*/
-static cycle_t igb_ptp_read_82576(const struct cyclecounter *cc)
+static u64 igb_ptp_read_82576(const struct cyclecounter *cc)
{
struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc);
struct e1000_hw *hw = &igb->hw;
@@ -113,7 +113,7 @@ static cycle_t igb_ptp_read_82576(const struct cyclecounter *cc)
* SYSTIM read access for the 82580
*/
-static cycle_t igb_ptp_read_82580(const struct cyclecounter *cc)
+static u64 igb_ptp_read_82580(const struct cyclecounter *cc)
{
struct igb_adapter *igb = container_of(cc, struct igb_adapter, cc);
struct e1000_hw *hw = &igb->hw;

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@ -1,47 +0,0 @@
diff --git a/src/e1000_defines.h b/src/e1000_defines.h
index 6de3988..d58e12f 100644
--- a/src/e1000_defines.h
+++ b/src/e1000_defines.h
@@ -423,7 +423,8 @@
#define ETHERNET_IEEE_VLAN_TYPE 0x8100 /* 802.3ac packet */
#define ETHERNET_FCS_SIZE 4
-#define MAX_JUMBO_FRAME_SIZE 0x3F00
+#define MAX_JUMBO_FRAME_SIZE 0x2600
+#define MAX_STD_JUMBO_FRAME_SIZE 9216
/* The datasheet maximum supported RX size is 9.5KB (9728 bytes) */
#define MAX_RX_JUMBO_FRAME_SIZE 0x2600
#define E1000_TX_PTR_GAP 0x1F
diff --git a/src/igb_main.c b/src/igb_main.c
index 2dff0f4..bbfe87e 100644
--- a/src/igb_main.c
+++ b/src/igb_main.c
@@ -2852,6 +2852,10 @@ static int igb_probe(struct pci_dev *pdev,
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;
+ /* MTU range: 68 - 9216 */
+ netdev->min_mtu = ETH_MIN_MTU;
+ netdev->max_mtu = MAX_STD_JUMBO_FRAME_SIZE;
+
adapter->en_mng_pt = e1000_enable_mng_pass_thru(hw);
#ifdef DEBUG
if (adapter->dmac != IGB_DMAC_DISABLE)
@@ -5832,17 +5836,6 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
struct pci_dev *pdev = adapter->pdev;
int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
- if ((new_mtu < 68) || (max_frame > MAX_JUMBO_FRAME_SIZE)) {
- dev_err(pci_dev_to_dev(pdev), "Invalid MTU setting\n");
- return -EINVAL;
- }
-
-#define MAX_STD_JUMBO_FRAME_SIZE 9238
- if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
- dev_err(pci_dev_to_dev(pdev), "MTU > 9216 not supported.\n");
- return -EINVAL;
- }
-
/* adjust max frame to be at least the size of a standard frame */
if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN))
max_frame = ETH_FRAME_LEN + ETH_FCS_LEN;

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@ -1,95 +0,0 @@
From 6445198f802d993c73f4b246353b2ceb2dfafc32 Mon Sep 17 00:00:00 2001
From: Ferruh Yigit <ferruh.yigit@intel.com>
Date: Mon, 17 Oct 2016 11:23:14 +0100
Subject: kni: fix build with kernel 4.9
compile error:
CC [M] .../lib/librte_eal/linuxapp/kni/igb_main.o
.../lib/librte_eal/linuxapp/kni/igb_main.c:2317:21:
error: initialization from incompatible pointer type
[-Werror=incompatible-pointer-types]
.ndo_set_vf_vlan = igb_ndo_set_vf_vlan,
^~~~~~~~~~~~~~~~~~~
Linux kernel 4.9 updates API for ndo_set_vf_vlan:
Linux: 79aab093a0b5 ("net: Update API for VF vlan protocol 802.1ad support")
Use new API for Linux kernels >= 4.9
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
---
src/igb_main.c | 19 +++++++++++++++++++
src/kcompat.h | 4 ++++
2 files changed, 23 insertions(+)
diff --git a/src/igb_main.c b/src/igb_main.c
index 23e2d64..f4dca5a 100644
--- a/src/igb_main.c
+++ b/src/igb_main.c
@@ -195,7 +195,11 @@ static void igb_process_mdd_event(struct igb_adapter *);
#ifdef IFLA_VF_MAX
static int igb_ndo_set_vf_mac( struct net_device *netdev, int vf, u8 *mac);
static int igb_ndo_set_vf_vlan(struct net_device *netdev,
+#ifdef HAVE_VF_VLAN_PROTO
+ int vf, u16 vlan, u8 qos, __be16 vlan_proto);
+#else
int vf, u16 vlan, u8 qos);
+#endif
#ifdef HAVE_VF_SPOOFCHK_CONFIGURE
static int igb_ndo_set_vf_spoofchk(struct net_device *netdev, int vf,
bool setting);
@@ -6412,7 +6416,11 @@ static void igb_set_vmvir(struct igb_adapter *adapter, u32 vid, u32 vf)
}
static int igb_ndo_set_vf_vlan(struct net_device *netdev,
+#ifdef HAVE_VF_VLAN_PROTO
+ int vf, u16 vlan, u8 qos, __be16 vlan_proto)
+#else
int vf, u16 vlan, u8 qos)
+#endif
{
int err = 0;
struct igb_adapter *adapter = netdev_priv(netdev);
@@ -6420,6 +6428,12 @@ static int igb_ndo_set_vf_vlan(struct net_device *netdev,
/* VLAN IDs accepted range 0-4094 */
if ((vf >= adapter->vfs_allocated_count) || (vlan > VLAN_VID_MASK-1) || (qos > 7))
return -EINVAL;
+
+#ifdef HAVE_VF_VLAN_PROTO
+ if (vlan_proto != htons(ETH_P_8021Q))
+ return -EPROTONOSUPPORT;
+#endif
+
if (vlan || qos) {
err = igb_vlvf_set(adapter, vlan, !!vlan, vf);
if (err)
@@ -6580,7 +6594,12 @@ static inline void igb_vf_reset(struct igb_adapter *adapter, u32 vf)
if (adapter->vf_data[vf].pf_vlan)
igb_ndo_set_vf_vlan(adapter->netdev, vf,
adapter->vf_data[vf].pf_vlan,
+#ifdef HAVE_VF_VLAN_PROTO
+ adapter->vf_data[vf].pf_qos,
+ htons(ETH_P_8021Q));
+#else
adapter->vf_data[vf].pf_qos);
+#endif
else
igb_clear_vf_vfta(adapter, vf);
#endif
diff --git a/src/kcompat.h b/src/kcompat.h
index 69e0e7a..84826b2 100644
--- a/src/kcompat.h
+++ b/src/kcompat.h
@@ -3929,4 +3929,8 @@ skb_set_hash(struct sk_buff *skb, __u32 hash, __always_unused int type)
#define vlan_tx_tag_present skb_vlan_tag_present
#endif
+#if ( LINUX_VERSION_CODE >= KERNEL_VERSION(4,9,0) )
+#define HAVE_VF_VLAN_PROTO
+#endif /* >= 4.9.0 */
+
#endif /* _KCOMPAT_H_ */
--
cgit v1.0

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@ -1,18 +0,0 @@
diff --git a/src/Makefile.orig b/src/Makefile
index 8e962f7..50bcdcc 100644
--- a/src/Makefile.orig
+++ b/src/Makefile
@@ -123,6 +123,13 @@ ifeq (,$(CC))
$(error Compiler not found)
endif
+# workaround for GCC6's default PIE
+ifeq ($(CC),gcc)
+ PIE_TEST = [ -z "`$(CC) -fno-PIE -no-pie -x c -c /dev/null -o /dev/null 2>&1`" ]
+ PIE_FLAGS := $(shell $(PIE_TEST) && echo '-fno-PIE -no-pie')
+ EXTRA_CFLAGS += $(PIE_FLAGS)
+endif
+
# we need to know what platform the driver is being built on
# some additional features are only built on Intel platforms
ARCH := $(shell uname -m | sed 's/i.86/i386/')

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@ -1,25 +0,0 @@
src/{ixgbe_ptp.c.orig => ixgbe_ptp.c} | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/ixgbe_ptp.c.orig b/src/ixgbe_ptp.c
index fb832f0..b868c68 100644
--- a/src/ixgbe_ptp.c.orig
+++ b/src/ixgbe_ptp.c
@@ -244,7 +244,7 @@ static void ixgbe_ptp_setup_sdp_X540(struct ixgbe_adapter *adapter)
* result of SYSTIME is 32bits of "billions of cycles" and 32 bits of
* "cycles", rather than seconds and nanoseconds.
*/
-static cycle_t ixgbe_ptp_read_X550(const struct cyclecounter *hw_cc) {
+static u64 ixgbe_ptp_read_X550(const struct cyclecounter *hw_cc) {
struct ixgbe_adapter *adapter =
container_of(hw_cc, struct ixgbe_adapter, hw_cc);
struct ixgbe_hw *hw = &adapter->hw;
@@ -280,7 +280,7 @@ static cycle_t ixgbe_ptp_read_X550(const struct cyclecounter *hw_cc) {
* cyclecounter structure used to construct a ns counter from the
* arbitrary fixed point registers
*/
-static cycle_t ixgbe_ptp_read_82599(const struct cyclecounter *hw_cc)
+static u64 ixgbe_ptp_read_82599(const struct cyclecounter *hw_cc)
{
struct ixgbe_adapter *adapter =
container_of(hw_cc, struct ixgbe_adapter, hw_cc);

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@ -1,37 +0,0 @@
diff --git a/src/ixgbe_main.c b/src/ixgbe_main.c
index 83c6250..fe226cd 100644
--- a/src/ixgbe_main.c
+++ b/src/ixgbe_main.c
@@ -6379,11 +6379,6 @@ static void ixgbe_free_all_rx_resources(struct ixgbe_adapter *adapter)
static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
{
struct ixgbe_adapter *adapter = netdev_priv(netdev);
- int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
-
- /* MTU < 68 is an error and causes problems on some kernels */
- if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE))
- return -EINVAL;
/*
* For 82599EB we cannot allow legacy VFs to enable their receive
@@ -6392,7 +6387,7 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
*/
if ((adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) &&
(adapter->hw.mac.type == ixgbe_mac_82599EB) &&
- (max_frame > (ETH_FRAME_LEN + ETH_FCS_LEN)))
+ (new_mtu > ETH_DATA_LEN))
e_warn(probe, "Setting MTU > 1500 will disable legacy VFs\n");
e_info(probe, "changing MTU from %d to %d\n", netdev->mtu, new_mtu);
@@ -10134,6 +10129,11 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
#ifdef IFF_SUPP_NOFCS
netdev->priv_flags |= IFF_SUPP_NOFCS;
#endif
+
+ /* MTU range: 68 - 9710 */
+ netdev->min_mtu = ETH_MIN_MTU;
+ netdev->max_mtu = IXGBE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN);
+
#if IS_ENABLED(CONFIG_DCB)
if (adapter->flags & IXGBE_FLAG_DCB_CAPABLE)
netdev->dcbnl_ops = &dcbnl_ops;