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-rw-r--r--drivers/net/dsa/sja1105/sja1105.h1
-rw-r--r--drivers/net/dsa/sja1105/sja1105_clocking.c58
-rw-r--r--drivers/net/dsa/sja1105/sja1105_spi.c2
-rw-r--r--drivers/net/ethernet/dnet.c3
-rw-r--r--drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/reg.h2
-rw-r--r--drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c8
-rw-r--r--drivers/net/ethernet/qlogic/qed/qed_roce.c17
-rw-r--r--drivers/net/ethernet/realtek/r8169_main.c2
-rw-r--r--drivers/net/ethernet/sun/cassini.c2
-rw-r--r--drivers/net/phy/mdio_bus.c9
-rw-r--r--drivers/net/phy/mscc/mscc_main.c7
-rw-r--r--drivers/net/phy/realtek.c15
-rw-r--r--drivers/ptp/ptp_idt82p33.c4
-rw-r--r--drivers/ptp/ptp_kvm.c2
-rwxr-xr-xtools/testing/selftests/net/pmtu.sh122
16 files changed, 220 insertions, 38 deletions
diff --git a/drivers/net/dsa/sja1105/sja1105.h b/drivers/net/dsa/sja1105/sja1105.h
index 8b60dbd567f2..2f62942692ec 100644
--- a/drivers/net/dsa/sja1105/sja1105.h
+++ b/drivers/net/dsa/sja1105/sja1105.h
@@ -49,6 +49,7 @@ struct sja1105_regs {
u64 ptpschtm;
u64 ptpegr_ts[SJA1105_NUM_PORTS];
u64 pad_mii_tx[SJA1105_NUM_PORTS];
+ u64 pad_mii_rx[SJA1105_NUM_PORTS];
u64 pad_mii_id[SJA1105_NUM_PORTS];
u64 cgu_idiv[SJA1105_NUM_PORTS];
u64 mii_tx_clk[SJA1105_NUM_PORTS];
diff --git a/drivers/net/dsa/sja1105/sja1105_clocking.c b/drivers/net/dsa/sja1105/sja1105_clocking.c
index 0fdc2d55fff6..2a9b8a6a5306 100644
--- a/drivers/net/dsa/sja1105/sja1105_clocking.c
+++ b/drivers/net/dsa/sja1105/sja1105_clocking.c
@@ -7,12 +7,16 @@
#define SJA1105_SIZE_CGU_CMD 4
-struct sja1105_cfg_pad_mii_tx {
+/* Common structure for CFG_PAD_MIIx_RX and CFG_PAD_MIIx_TX */
+struct sja1105_cfg_pad_mii {
u64 d32_os;
+ u64 d32_ih;
u64 d32_ipud;
+ u64 d10_ih;
u64 d10_os;
u64 d10_ipud;
u64 ctrl_os;
+ u64 ctrl_ih;
u64 ctrl_ipud;
u64 clk_os;
u64 clk_ih;
@@ -338,16 +342,19 @@ static int sja1105_cgu_rgmii_tx_clk_config(struct sja1105_private *priv,
/* AGU */
static void
-sja1105_cfg_pad_mii_tx_packing(void *buf, struct sja1105_cfg_pad_mii_tx *cmd,
- enum packing_op op)
+sja1105_cfg_pad_mii_packing(void *buf, struct sja1105_cfg_pad_mii *cmd,
+ enum packing_op op)
{
const int size = 4;
sja1105_packing(buf, &cmd->d32_os, 28, 27, size, op);
+ sja1105_packing(buf, &cmd->d32_ih, 26, 26, size, op);
sja1105_packing(buf, &cmd->d32_ipud, 25, 24, size, op);
sja1105_packing(buf, &cmd->d10_os, 20, 19, size, op);
+ sja1105_packing(buf, &cmd->d10_ih, 18, 18, size, op);
sja1105_packing(buf, &cmd->d10_ipud, 17, 16, size, op);
sja1105_packing(buf, &cmd->ctrl_os, 12, 11, size, op);
+ sja1105_packing(buf, &cmd->ctrl_ih, 10, 10, size, op);
sja1105_packing(buf, &cmd->ctrl_ipud, 9, 8, size, op);
sja1105_packing(buf, &cmd->clk_os, 4, 3, size, op);
sja1105_packing(buf, &cmd->clk_ih, 2, 2, size, op);
@@ -358,7 +365,7 @@ static int sja1105_rgmii_cfg_pad_tx_config(struct sja1105_private *priv,
int port)
{
const struct sja1105_regs *regs = priv->info->regs;
- struct sja1105_cfg_pad_mii_tx pad_mii_tx;
+ struct sja1105_cfg_pad_mii pad_mii_tx = {0};
u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
/* Payload */
@@ -375,12 +382,45 @@ static int sja1105_rgmii_cfg_pad_tx_config(struct sja1105_private *priv,
pad_mii_tx.clk_os = 3; /* TX_CLK output stage */
pad_mii_tx.clk_ih = 0; /* TX_CLK input hysteresis (default) */
pad_mii_tx.clk_ipud = 2; /* TX_CLK input stage (default) */
- sja1105_cfg_pad_mii_tx_packing(packed_buf, &pad_mii_tx, PACK);
+ sja1105_cfg_pad_mii_packing(packed_buf, &pad_mii_tx, PACK);
return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_tx[port],
packed_buf, SJA1105_SIZE_CGU_CMD);
}
+static int sja1105_cfg_pad_rx_config(struct sja1105_private *priv, int port)
+{
+ const struct sja1105_regs *regs = priv->info->regs;
+ struct sja1105_cfg_pad_mii pad_mii_rx = {0};
+ u8 packed_buf[SJA1105_SIZE_CGU_CMD] = {0};
+
+ /* Payload */
+ pad_mii_rx.d32_ih = 0; /* RXD[3:2] input stage hysteresis: */
+ /* non-Schmitt (default) */
+ pad_mii_rx.d32_ipud = 2; /* RXD[3:2] input weak pull-up/down */
+ /* plain input (default) */
+ pad_mii_rx.d10_ih = 0; /* RXD[1:0] input stage hysteresis: */
+ /* non-Schmitt (default) */
+ pad_mii_rx.d10_ipud = 2; /* RXD[1:0] input weak pull-up/down */
+ /* plain input (default) */
+ pad_mii_rx.ctrl_ih = 0; /* RX_DV/CRS_DV/RX_CTL and RX_ER */
+ /* input stage hysteresis: */
+ /* non-Schmitt (default) */
+ pad_mii_rx.ctrl_ipud = 3; /* RX_DV/CRS_DV/RX_CTL and RX_ER */
+ /* input stage weak pull-up/down: */
+ /* pull-down */
+ pad_mii_rx.clk_os = 2; /* RX_CLK/RXC output stage: */
+ /* medium noise/fast speed (default) */
+ pad_mii_rx.clk_ih = 0; /* RX_CLK/RXC input hysteresis: */
+ /* non-Schmitt (default) */
+ pad_mii_rx.clk_ipud = 2; /* RX_CLK/RXC input pull-up/down: */
+ /* plain input (default) */
+ sja1105_cfg_pad_mii_packing(packed_buf, &pad_mii_rx, PACK);
+
+ return sja1105_xfer_buf(priv, SPI_WRITE, regs->pad_mii_rx[port],
+ packed_buf, SJA1105_SIZE_CGU_CMD);
+}
+
static void
sja1105_cfg_pad_mii_id_packing(void *buf, struct sja1105_cfg_pad_mii_id *cmd,
enum packing_op op)
@@ -669,10 +709,14 @@ int sja1105_clocking_setup_port(struct sja1105_private *priv, int port)
phy_mode);
return -EINVAL;
}
- if (rc)
+ if (rc) {
dev_err(dev, "Clocking setup for port %d failed: %d\n",
port, rc);
- return rc;
+ return rc;
+ }
+
+ /* Internally pull down the RX_DV/CRS_DV/RX_CTL and RX_ER inputs */
+ return sja1105_cfg_pad_rx_config(priv, port);
}
int sja1105_clocking_setup(struct sja1105_private *priv)
diff --git a/drivers/net/dsa/sja1105/sja1105_spi.c b/drivers/net/dsa/sja1105/sja1105_spi.c
index 04bdb72ae6b6..43f14a5c2718 100644
--- a/drivers/net/dsa/sja1105/sja1105_spi.c
+++ b/drivers/net/dsa/sja1105/sja1105_spi.c
@@ -443,6 +443,7 @@ static struct sja1105_regs sja1105et_regs = {
.rgu = 0x100440,
/* UM10944.pdf, Table 86, ACU Register overview */
.pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
+ .pad_mii_rx = {0x100801, 0x100803, 0x100805, 0x100807, 0x100809},
.rmii_pll1 = 0x10000A,
.cgu_idiv = {0x10000B, 0x10000C, 0x10000D, 0x10000E, 0x10000F},
.mac = {0x200, 0x202, 0x204, 0x206, 0x208},
@@ -475,6 +476,7 @@ static struct sja1105_regs sja1105pqrs_regs = {
.rgu = 0x100440,
/* UM10944.pdf, Table 86, ACU Register overview */
.pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
+ .pad_mii_rx = {0x100801, 0x100803, 0x100805, 0x100807, 0x100809},
.pad_mii_id = {0x100810, 0x100811, 0x100812, 0x100813, 0x100814},
.sgmii = 0x1F0000,
.rmii_pll1 = 0x10000A,
diff --git a/drivers/net/ethernet/dnet.c b/drivers/net/ethernet/dnet.c
index 057a508dd6e2..db98274501a0 100644
--- a/drivers/net/ethernet/dnet.c
+++ b/drivers/net/ethernet/dnet.c
@@ -776,8 +776,7 @@ static int dnet_probe(struct platform_device *pdev)
spin_lock_init(&bp->lock);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- bp->regs = devm_ioremap_resource(&pdev->dev, res);
+ bp->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(bp->regs)) {
err = PTR_ERR(bp->regs);
goto err_out_free_dev;
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
index 8aace2de0cc9..9a907947ba19 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c
@@ -697,9 +697,9 @@ hns_mac_register_phydev(struct mii_bus *mdio, struct hns_mac_cb *mac_cb,
return rc;
if (!strcmp(phy_type, phy_modes(PHY_INTERFACE_MODE_XGMII)))
- is_c45 = 1;
+ is_c45 = true;
else if (!strcmp(phy_type, phy_modes(PHY_INTERFACE_MODE_SGMII)))
- is_c45 = 0;
+ is_c45 = false;
else
return -ENODATA;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index 9b39b8e70519..3c3db1c874b6 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -3203,7 +3203,7 @@ MLXSW_ITEM32_INDEXED(reg, iedr, rec_type, MLXSW_REG_IEDR_BASE_LEN, 24, 8,
* Size of entries do be deleted. The unit is 1 entry, regardless of entry type.
* Access: OP
*/
-MLXSW_ITEM32_INDEXED(reg, iedr, rec_size, MLXSW_REG_IEDR_BASE_LEN, 0, 11,
+MLXSW_ITEM32_INDEXED(reg, iedr, rec_size, MLXSW_REG_IEDR_BASE_LEN, 0, 13,
MLXSW_REG_IEDR_REC_LEN, 0x00, false);
/* reg_iedr_rec_index_start
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index d5bca1be3ef5..71aee4914619 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -2999,6 +2999,7 @@ static u32 mlxsw_sp_nexthop_group_hash_obj(const void *data, u32 len, u32 seed)
for (i = 0; i < nh_grp->count; i++) {
nh = &nh_grp->nexthops[i];
val ^= jhash(&nh->ifindex, sizeof(nh->ifindex), seed);
+ val ^= jhash(&nh->gw_addr, sizeof(nh->gw_addr), seed);
}
return jhash(&val, sizeof(val), seed);
default:
@@ -3012,11 +3013,14 @@ mlxsw_sp_nexthop6_group_hash(struct mlxsw_sp_fib6_entry *fib6_entry, u32 seed)
{
unsigned int val = fib6_entry->nrt6;
struct mlxsw_sp_rt6 *mlxsw_sp_rt6;
- struct net_device *dev;
list_for_each_entry(mlxsw_sp_rt6, &fib6_entry->rt6_list, list) {
- dev = mlxsw_sp_rt6->rt->fib6_nh->fib_nh_dev;
+ struct fib6_nh *fib6_nh = mlxsw_sp_rt6->rt->fib6_nh;
+ struct net_device *dev = fib6_nh->fib_nh_dev;
+ struct in6_addr *gw = &fib6_nh->fib_nh_gw6;
+
val ^= jhash(&dev->ifindex, sizeof(dev->ifindex), seed);
+ val ^= jhash(gw, sizeof(*gw), seed);
}
return jhash(&val, sizeof(val), seed);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_roce.c b/drivers/net/ethernet/qlogic/qed/qed_roce.c
index 37e70562a964..475b89903f46 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_roce.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_roce.c
@@ -736,9 +736,9 @@ static int qed_roce_sp_destroy_qp_responder(struct qed_hwfn *p_hwfn,
p_ramrod = &p_ent->ramrod.roce_destroy_qp_resp;
- p_ramrod_res = (struct roce_destroy_qp_resp_output_params *)
- dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_ramrod_res),
- &ramrod_res_phys, GFP_KERNEL);
+ p_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(*p_ramrod_res),
+ &ramrod_res_phys, GFP_KERNEL);
if (!p_ramrod_res) {
rc = -ENOMEM;
@@ -872,10 +872,10 @@ int qed_roce_query_qp(struct qed_hwfn *p_hwfn,
}
/* Send a query responder ramrod to FW to get RQ-PSN and state */
- p_resp_ramrod_res = (struct roce_query_qp_resp_output_params *)
- dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
- sizeof(*p_resp_ramrod_res),
- &resp_ramrod_res_phys, GFP_KERNEL);
+ p_resp_ramrod_res =
+ dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ sizeof(*p_resp_ramrod_res),
+ &resp_ramrod_res_phys, GFP_KERNEL);
if (!p_resp_ramrod_res) {
DP_NOTICE(p_hwfn,
"qed query qp failed: cannot allocate memory (ramrod)\n");
@@ -920,8 +920,7 @@ int qed_roce_query_qp(struct qed_hwfn *p_hwfn,
}
/* Send a query requester ramrod to FW to get SQ-PSN and state */
- p_req_ramrod_res = (struct roce_query_qp_req_output_params *)
- dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
+ p_req_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev,
sizeof(*p_req_ramrod_res),
&req_ramrod_res_phys,
GFP_KERNEL);
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index a8696d958cd1..1bc415d00cb8 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -2391,8 +2391,6 @@ static void rtl_pll_power_up(struct rtl8169_private *tp)
}
phy_resume(tp->phydev);
- /* give MAC/PHY some time to resume */
- msleep(20);
}
static void rtl_init_rxcfg(struct rtl8169_private *tp)
diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
index e6d1aa882fa5..3ee6ab104cb9 100644
--- a/drivers/net/ethernet/sun/cassini.c
+++ b/drivers/net/ethernet/sun/cassini.c
@@ -5059,7 +5059,7 @@ static int cas_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
if (cp->cas_flags & CAS_FLAG_SATURN)
cas_saturn_firmware_init(cp);
- cp->init_block = (struct cas_init_block *)
+ cp->init_block =
pci_alloc_consistent(pdev, sizeof(struct cas_init_block),
&cp->block_dvma);
if (!cp->init_block) {
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 7a4eb3f2cb74..346e88435d29 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -627,8 +627,11 @@ int __mdiobus_register(struct mii_bus *bus, struct module *owner)
gpiod_set_value_cansleep(gpiod, 0);
}
- if (bus->reset)
- bus->reset(bus);
+ if (bus->reset) {
+ err = bus->reset(bus);
+ if (err)
+ goto error_reset_gpiod;
+ }
for (i = 0; i < PHY_MAX_ADDR; i++) {
if ((bus->phy_mask & (1 << i)) == 0) {
@@ -657,7 +660,7 @@ error:
mdiodev->device_remove(mdiodev);
mdiodev->device_free(mdiodev);
}
-
+error_reset_gpiod:
/* Put PHYs in RESET to save power */
if (bus->reset_gpiod)
gpiod_set_value_cansleep(bus->reset_gpiod, 1);
diff --git a/drivers/net/phy/mscc/mscc_main.c b/drivers/net/phy/mscc/mscc_main.c
index acddef79f4e8..5391acdece05 100644
--- a/drivers/net/phy/mscc/mscc_main.c
+++ b/drivers/net/phy/mscc/mscc_main.c
@@ -1292,7 +1292,7 @@ out:
*/
static bool vsc8584_is_pkg_init(struct phy_device *phydev, bool reversed)
{
- struct mdio_device **map = phydev->mdio.bus->mdio_map;
+ struct mii_bus *bus = phydev->mdio.bus;
struct vsc8531_private *vsc8531;
struct phy_device *phy;
int i, addr;
@@ -1306,11 +1306,10 @@ static bool vsc8584_is_pkg_init(struct phy_device *phydev, bool reversed)
else
addr = vsc8531->base_addr + i;
- if (!map[addr])
+ phy = mdiobus_get_phy(bus, addr);
+ if (!phy)
continue;
- phy = container_of(map[addr], struct phy_device, mdio);
-
if ((phy->phy_id & phydev->drv->phy_id_mask) !=
(phydev->drv->phy_id & phydev->drv->phy_id_mask))
continue;
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 2d99e9de6ee1..c7229d022a27 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -11,6 +11,7 @@
#include <linux/bitops.h>
#include <linux/phy.h>
#include <linux/module.h>
+#include <linux/delay.h>
#define RTL821x_PHYSR 0x11
#define RTL821x_PHYSR_DUPLEX BIT(13)
@@ -526,6 +527,16 @@ static int rtl8125_match_phy_device(struct phy_device *phydev)
rtlgen_supports_2_5gbps(phydev);
}
+static int rtlgen_resume(struct phy_device *phydev)
+{
+ int ret = genphy_resume(phydev);
+
+ /* Internal PHY's from RTL8168h up may not be instantly ready */
+ msleep(20);
+
+ return ret;
+}
+
static struct phy_driver realtek_drvs[] = {
{
PHY_ID_MATCH_EXACT(0x00008201),
@@ -609,7 +620,7 @@ static struct phy_driver realtek_drvs[] = {
.match_phy_device = rtlgen_match_phy_device,
.read_status = rtlgen_read_status,
.suspend = genphy_suspend,
- .resume = genphy_resume,
+ .resume = rtlgen_resume,
.read_page = rtl821x_read_page,
.write_page = rtl821x_write_page,
.read_mmd = rtlgen_read_mmd,
@@ -621,7 +632,7 @@ static struct phy_driver realtek_drvs[] = {
.config_aneg = rtl8125_config_aneg,
.read_status = rtl8125_read_status,
.suspend = genphy_suspend,
- .resume = genphy_resume,
+ .resume = rtlgen_resume,
.read_page = rtl821x_read_page,
.write_page = rtl821x_write_page,
.read_mmd = rtl8125_read_mmd,
diff --git a/drivers/ptp/ptp_idt82p33.c b/drivers/ptp/ptp_idt82p33.c
index b63ac240308b..31ea811b6d5f 100644
--- a/drivers/ptp/ptp_idt82p33.c
+++ b/drivers/ptp/ptp_idt82p33.c
@@ -23,12 +23,12 @@ MODULE_VERSION("1.0");
MODULE_LICENSE("GPL");
/* Module Parameters */
-u32 sync_tod_timeout = SYNC_TOD_TIMEOUT_SEC;
+static u32 sync_tod_timeout = SYNC_TOD_TIMEOUT_SEC;
module_param(sync_tod_timeout, uint, 0);
MODULE_PARM_DESC(sync_tod_timeout,
"duration in second to keep SYNC_TOD on (set to 0 to keep it always on)");
-u32 phase_snap_threshold = SNAP_THRESHOLD_NS;
+static u32 phase_snap_threshold = SNAP_THRESHOLD_NS;
module_param(phase_snap_threshold, uint, 0);
MODULE_PARM_DESC(phase_snap_threshold,
"threshold (150000ns by default) below which adjtime would ignore");
diff --git a/drivers/ptp/ptp_kvm.c b/drivers/ptp/ptp_kvm.c
index fc7d0b77e118..658d33fc3195 100644
--- a/drivers/ptp/ptp_kvm.c
+++ b/drivers/ptp/ptp_kvm.c
@@ -22,7 +22,7 @@ struct kvm_ptp_clock {
struct ptp_clock_info caps;
};
-DEFINE_SPINLOCK(kvm_ptp_lock);
+static DEFINE_SPINLOCK(kvm_ptp_lock);
static struct pvclock_vsyscall_time_info *hv_clock;
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index 71a62e7e35b1..77c09cd339c3 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -67,6 +67,10 @@
# Same as pmtu_ipv4_vxlan4, but using a generic UDP IPv4/IPv6
# encapsulation (GUE) over IPv4/IPv6, instead of VXLAN
#
+# - pmtu_ipv{4,6}_ipv{4,6}_exception
+# Same as pmtu_ipv4_vxlan4, but using a IPv4/IPv6 tunnel over IPv4/IPv6,
+# instead of VXLAN
+#
# - pmtu_vti4_exception
# Set up vti tunnel on top of veth, with xfrm states and policies, in two
# namespaces with matching endpoints. Check that route exception is not
@@ -151,6 +155,10 @@ tests="
pmtu_ipv6_gue4_exception IPv6 over gue4: PMTU exceptions 1
pmtu_ipv4_gue6_exception IPv4 over gue6: PMTU exceptions 1
pmtu_ipv6_gue6_exception IPv6 over gue6: PMTU exceptions 1
+ pmtu_ipv4_ipv4_exception IPv4 over IPv4: PMTU exceptions 1
+ pmtu_ipv6_ipv4_exception IPv6 over IPv4: PMTU exceptions 1
+ pmtu_ipv4_ipv6_exception IPv4 over IPv6: PMTU exceptions 1
+ pmtu_ipv6_ipv6_exception IPv6 over IPv6: PMTU exceptions 1
pmtu_vti6_exception vti6: PMTU exceptions 0
pmtu_vti4_exception vti4: PMTU exceptions 0
pmtu_vti4_default_mtu vti4: default MTU assignment 0
@@ -363,6 +371,62 @@ setup_gue66() {
setup_fou_or_gue 6 6 gue
}
+setup_ipvX_over_ipvY() {
+ inner=${1}
+ outer=${2}
+
+ if [ "${outer}" -eq 4 ]; then
+ a_addr="${prefix4}.${a_r1}.1"
+ b_addr="${prefix4}.${b_r1}.1"
+ if [ "${inner}" -eq 4 ]; then
+ type="ipip"
+ mode="ipip"
+ else
+ type="sit"
+ mode="ip6ip"
+ fi
+ else
+ a_addr="${prefix6}:${a_r1}::1"
+ b_addr="${prefix6}:${b_r1}::1"
+ type="ip6tnl"
+ if [ "${inner}" -eq 4 ]; then
+ mode="ipip6"
+ else
+ mode="ip6ip6"
+ fi
+ fi
+
+ run_cmd ${ns_a} ip link add ip_a type ${type} local ${a_addr} remote ${b_addr} mode ${mode} || return 2
+ run_cmd ${ns_b} ip link add ip_b type ${type} local ${b_addr} remote ${a_addr} mode ${mode}
+
+ run_cmd ${ns_a} ip link set ip_a up
+ run_cmd ${ns_b} ip link set ip_b up
+
+ if [ "${inner}" = "4" ]; then
+ run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ip_a
+ run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ip_b
+ else
+ run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ip_a
+ run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ip_b
+ fi
+}
+
+setup_ip4ip4() {
+ setup_ipvX_over_ipvY 4 4
+}
+
+setup_ip6ip4() {
+ setup_ipvX_over_ipvY 6 4
+}
+
+setup_ip4ip6() {
+ setup_ipvX_over_ipvY 4 6
+}
+
+setup_ip6ip6() {
+ setup_ipvX_over_ipvY 6 6
+}
+
setup_namespaces() {
for n in ${NS_A} ${NS_B} ${NS_R1} ${NS_R2}; do
ip netns add ${n} || return 1
@@ -908,6 +972,64 @@ test_pmtu_ipv6_gue6_exception() {
test_pmtu_ipvX_over_fouY_or_gueY 6 6 gue
}
+test_pmtu_ipvX_over_ipvY_exception() {
+ inner=${1}
+ outer=${2}
+ ll_mtu=4000
+
+ setup namespaces routing ip${inner}ip${outer} || return 2
+
+ trace "${ns_a}" ip_a "${ns_b}" ip_b \
+ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
+ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B
+
+ if [ ${inner} -eq 4 ]; then
+ ping=ping
+ dst=${tunnel4_b_addr}
+ else
+ ping=${ping6}
+ dst=${tunnel6_b_addr}
+ fi
+
+ if [ ${outer} -eq 4 ]; then
+ # IPv4 header
+ exp_mtu=$((${ll_mtu} - 20))
+ else
+ # IPv6 header Option 4
+ exp_mtu=$((${ll_mtu} - 40 - 8))
+ fi
+
+ # Create route exception by exceeding link layer MTU
+ mtu "${ns_a}" veth_A-R1 $((${ll_mtu} + 1000))
+ mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+ mtu "${ns_b}" veth_B-R1 ${ll_mtu}
+ mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+ mtu "${ns_a}" ip_a $((${ll_mtu} + 1000)) || return
+ mtu "${ns_b}" ip_b $((${ll_mtu} + 1000)) || return
+ run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst}
+
+ # Check that exception was created
+ pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+ check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on ip${inner}ip${outer} interface"
+}
+
+test_pmtu_ipv4_ipv4_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 4 4
+}
+
+test_pmtu_ipv6_ipv4_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 6 4
+}
+
+test_pmtu_ipv4_ipv6_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 4 6
+}
+
+test_pmtu_ipv6_ipv6_exception() {
+ test_pmtu_ipvX_over_ipvY_exception 6 6
+}
+
test_pmtu_vti4_exception() {
setup namespaces veth vti4 xfrm4 || return 2
trace "${ns_a}" veth_a "${ns_b}" veth_b \
generated by cgit v1.2.3-70-g09d2 (git 2.51.1) at 2025-11-01 18:52:15 +0000