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Networking fixes for 5.11-rc3 (part 2), including fixes from bpf and 

can trees.
 
 Current release - always broken:
 
  - can: mcp251xfd: fix Tx/Rx ring buffer driver race conditions
 
  - dsa: hellcreek: fix led_classdev build errors
 
 Previous releases - regressions:
 
  - ipv6: fib: flush exceptions when purging route to avoid netdev
               reference leak
 
  - ip_tunnels: fix pmtu check in nopmtudisc mode
 
  - ip: always refragment ip defragmented packets to avoid MTU issues
        when forwarding through tunnels, correct "packet too big"
        message is prohibitively tricky to generate
 
  - s390/qeth: fix locking for discipline setup / removal and during
               recovery to prevent both deadlocks and races
 
  - mlx5: Use port_num 1 instead of 0 when delete a RoCE address
 
 Previous releases - always broken:
 
  - cdc_ncm: correct overhead calculation in delayed_ndp_size to prevent
             out of bound accesses with Huawei 909s-120 LTE module
 
  - stmmac: dwmac-sun8i: fix suspend/resume:
            - PHY being left powered off
            - MAC syscon configuration being reset
            - reference to the reset controller being improperly dropped
 
  - qrtr: fix null-ptr-deref in qrtr_ns_remove
 
  - can: tcan4x5x: fix bittiming const, use common bittiming from m_can
                   driver
 
  - mlx5e: CT: Use per flow counter when CT flow accounting is enabled
 
  - mlx5e: Fix SWP offsets when vlan inserted by driver
 
 Misc:
 
  - bpf: Fix a task_iter bug caused by a bpf -> net merge conflict
         resolution
 
 And the usual many fixes to various error paths.
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.11-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull more networking fixes from Jakub Kicinski:
 "Slightly lighter pull request to get back into the Thursday cadence.

  Current release - always broken:

   - can: mcp251xfd: fix Tx/Rx ring buffer driver race conditions

   - dsa: hellcreek: fix led_classdev build errors

  Previous releases - regressions:

   - ipv6: fib: flush exceptions when purging route to avoid netdev
     reference leak

   - ip_tunnels: fix pmtu check in nopmtudisc mode

   - ip: always refragment ip defragmented packets to avoid MTU issues
     when forwarding through tunnels, correct "packet too big" message
     is prohibitively tricky to generate

   - s390/qeth: fix locking for discipline setup / removal and during
     recovery to prevent both deadlocks and races

   - mlx5: Use port_num 1 instead of 0 when delete a RoCE address

  Previous releases - always broken:

   - cdc_ncm: correct overhead calculation in delayed_ndp_size to
     prevent out of bound accesses with Huawei 909s-120 LTE module

   - fix stmmac dwmac-sun8i suspend/resume:
           - PHY being left powered off
           - MAC syscon configuration being reset
           - reference to the reset controller being improperly dropped

   - qrtr: fix null-ptr-deref in qrtr_ns_remove

   - can: tcan4x5x: fix bittiming const, use common bittiming from m_can
     driver

   - mlx5e: CT: Use per flow counter when CT flow accounting is enabled

   - mlx5e: Fix SWP offsets when vlan inserted by driver

  Misc:

   - bpf: Fix a task_iter bug caused by a bpf -> net merge conflict
     resolution

  And the usual many fixes to various error paths"

* tag 'net-5.11-rc3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (69 commits)
  net: dsa: lantiq_gswip: Exclude RMII from modes that report 1 GbE
  s390/qeth: fix L2 header access in qeth_l3_osa_features_check()
  s390/qeth: fix locking for discipline setup / removal
  s390/qeth: fix deadlock during recovery
  selftests: fib_nexthops: Fix wrong mausezahn invocation
  nexthop: Bounce NHA_GATEWAY in FDB nexthop groups
  nexthop: Unlink nexthop group entry in error path
  nexthop: Fix off-by-one error in error path
  octeontx2-af: fix memory leak of lmac and lmac->name
  chtls: Fix chtls resources release sequence
  chtls: Added a check to avoid NULL pointer dereference
  chtls: Replace skb_dequeue with skb_peek
  chtls: Avoid unnecessary freeing of oreq pointer
  chtls: Fix panic when route to peer not configured
  chtls: Remove invalid set_tcb call
  chtls: Fix hardware tid leak
  net: ip: always refragment ip defragmented packets
  net: fix pmtu check in nopmtudisc mode
  selftests: netfilter: add selftest for ipip pmtu discovery with enabled connection tracking
  docs: octeontx2: tune rst markup
  ...
This commit is contained in:
Linus Torvalds 2021-01-08 12:12:30 -08:00
parent ea1c87c156 220efcf9ca
commit 6279d812ea
66 changed files with 745 additions and 308 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
Documentation/networking/device_drivers/ethernet/marvell/octeontx2.rst
View File

@ -164,46 +164,56 @@ Devlink health reporters
NPA Reporters
-------------
The NPA reporters are responsible for reporting and recovering the following group of errors
The NPA reporters are responsible for reporting and recovering the following group of errors:
1. GENERAL events
- Error due to operation of unmapped PF.
- Error due to disabled alloc/free for other HW blocks (NIX, SSO, TIM, DPI and AURA).
2. ERROR events
- Fault due to NPA_AQ_INST_S read or NPA_AQ_RES_S write.
- AQ Doorbell Error.
3. RAS events
- RAS Error Reporting for NPA_AQ_INST_S/NPA_AQ_RES_S.
4. RVU events
- Error due to unmapped slot.
Sample Output
-------------
~# devlink health
pci/0002:01:00.0:
reporter hw_npa_intr
state healthy error 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true
reporter hw_npa_gen
state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true
reporter hw_npa_err
state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true
reporter hw_npa_ras
state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true
Sample Output::
~# devlink health
pci/0002:01:00.0:
reporter hw_npa_intr
state healthy error 2872 recover 2872 last_dump_date 2020-12-10 last_dump_time 09:39:09 grace_period 0 auto_recover true auto_dump true
reporter hw_npa_gen
state healthy error 2872 recover 2872 last_dump_date 2020-12-11 last_dump_time 04:43:04 grace_period 0 auto_recover true auto_dump true
reporter hw_npa_err
state healthy error 2871 recover 2871 last_dump_date 2020-12-10 last_dump_time 09:39:17 grace_period 0 auto_recover true auto_dump true
reporter hw_npa_ras
state healthy error 0 recover 0 last_dump_date 2020-12-10 last_dump_time 09:32:40 grace_period 0 auto_recover true auto_dump true
Each reporter dumps the
- Error Type
- Error Register value
- Reason in words
For eg:
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen
NPA_AF_GENERAL:
NPA General Interrupt Reg : 1
NIX0: free disabled RX
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr
NPA_AF_RVU:
NPA RVU Interrupt Reg : 1
Unmap Slot Error
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err
NPA_AF_ERR:
NPA Error Interrupt Reg : 4096
AQ Doorbell Error
For example::
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_gen
NPA_AF_GENERAL:
NPA General Interrupt Reg : 1
NIX0: free disabled RX
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_intr
NPA_AF_RVU:
NPA RVU Interrupt Reg : 1
Unmap Slot Error
~# devlink health dump show pci/0002:01:00.0 reporter hw_npa_err
NPA_AF_ERR:
NPA Error Interrupt Reg : 4096
AQ Doorbell Error

4
Documentation/networking/netdevices.rst
View File

@ -64,8 +64,8 @@ ndo_do_ioctl:
Context: process
ndo_get_stats:
Synchronization: dev_base_lock rwlock.
Context: nominally process, but don't sleep inside an rwlock
Synchronization: rtnl_lock() semaphore, dev_base_lock rwlock, or RCU.
Context: atomic (can't sleep under rwlock or RCU)
ndo_start_xmit:
Synchronization: __netif_tx_lock spinlock.

2
MAINTAINERS
View File

@ -10847,7 +10847,7 @@ F: drivers/media/radio/radio-maxiradio*
MCAN MMIO DEVICE DRIVER
M: Dan Murphy <dmurphy@ti.com>
M: Sriram Dash <sriram.dash@samsung.com>
M: Pankaj Sharma <pankj.sharma@samsung.com>
L: linux-can@vger.kernel.org
S: Maintained
F: Documentation/devicetree/bindings/net/can/bosch,m_can.yaml

1
drivers/isdn/mISDN/Kconfig
View File

@ -13,6 +13,7 @@ if MISDN != n
config MISDN_DSP
tristate "Digital Audio Processing of transparent data"
depends on MISDN
select BITREVERSE
help
Enable support for digital audio processing capability.

22
drivers/net/bareudp.c
View File

@ -645,11 +645,20 @@ static int bareudp_link_config(struct net_device *dev,
return 0;
}
static void bareudp_dellink(struct net_device *dev, struct list_head *head)
{
struct bareudp_dev *bareudp = netdev_priv(dev);
list_del(&bareudp->next);
unregister_netdevice_queue(dev, head);
}
static int bareudp_newlink(struct net *net, struct net_device *dev,
struct nlattr *tb[], struct nlattr *data[],
struct netlink_ext_ack *extack)
{
struct bareudp_conf conf;
LIST_HEAD(list_kill);
int err;
err = bareudp2info(data, &conf, extack);
@ -662,17 +671,14 @@ static int bareudp_newlink(struct net *net, struct net_device *dev,
err = bareudp_link_config(dev, tb);
if (err)
return err;
goto err_unconfig;
return 0;
}
static void bareudp_dellink(struct net_device *dev, struct list_head *head)
{
struct bareudp_dev *bareudp = netdev_priv(dev);
list_del(&bareudp->next);
unregister_netdevice_queue(dev, head);
err_unconfig:
bareudp_dellink(dev, &list_kill);
unregister_netdevice_many(&list_kill);
return err;
}
static size_t bareudp_get_size(const struct net_device *dev)

1
drivers/net/can/Kconfig
View File

@ -123,6 +123,7 @@ config CAN_JANZ_ICAN3
config CAN_KVASER_PCIEFD
depends on PCI
tristate "Kvaser PCIe FD cards"
select CRC32
help
This is a driver for the Kvaser PCI Express CAN FD family.

2
drivers/net/can/m_can/m_can.c
View File

@ -1852,8 +1852,6 @@ EXPORT_SYMBOL_GPL(m_can_class_register);
void m_can_class_unregister(struct m_can_classdev *cdev)
{
unregister_candev(cdev->net);
m_can_clk_stop(cdev);
}
EXPORT_SYMBOL_GPL(m_can_class_unregister);

26
drivers/net/can/m_can/tcan4x5x.c
View File

@ -131,30 +131,6 @@ static inline struct tcan4x5x_priv *cdev_to_priv(struct m_can_classdev *cdev)
}
static struct can_bittiming_const tcan4x5x_bittiming_const = {
.name = DEVICE_NAME,
.tseg1_min = 2,
.tseg1_max = 31,
.tseg2_min = 2,
.tseg2_max = 16,
.sjw_max = 16,
.brp_min = 1,
.brp_max = 32,
.brp_inc = 1,
};
static struct can_bittiming_const tcan4x5x_data_bittiming_const = {
.name = DEVICE_NAME,
.tseg1_min = 1,
.tseg1_max = 32,
.tseg2_min = 1,
.tseg2_max = 16,
.sjw_max = 16,
.brp_min = 1,
.brp_max = 32,
.brp_inc = 1,
};
static void tcan4x5x_check_wake(struct tcan4x5x_priv *priv)
{
int wake_state = 0;
@ -469,8 +445,6 @@ static int tcan4x5x_can_probe(struct spi_device *spi)
mcan_class->dev = &spi->dev;
mcan_class->ops = &tcan4x5x_ops;
mcan_class->is_peripheral = true;
mcan_class->bit_timing = &tcan4x5x_bittiming_const;
mcan_class->data_timing = &tcan4x5x_data_bittiming_const;
mcan_class->net->irq = spi->irq;
spi_set_drvdata(spi, priv);

4
drivers/net/can/rcar/Kconfig
View File

@ -1,10 +1,10 @@
# SPDX-License-Identifier: GPL-2.0
config CAN_RCAR
tristate "Renesas R-Car CAN controller"
tristate "Renesas R-Car and RZ/G CAN controller"
depends on ARCH_RENESAS || ARM
help
Say Y here if you want to use CAN controller found on Renesas R-Car
SoCs.
or RZ/G SoCs.
To compile this driver as a module, choose M here: the module will
be called rcar_can.

17
drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
View File

@ -1368,13 +1368,10 @@ static int mcp251xfd_handle_tefif(struct mcp251xfd_priv *priv)
struct mcp251xfd_tx_ring *tx_ring = priv->tx;
struct spi_transfer *last_xfer;
tx_ring->tail += len;
/* Increment the TEF FIFO tail pointer 'len' times in
* a single SPI message.
*/
/* Note:
*
* Note:
*
* "cs_change == 1" on the last transfer results in an
* active chip select after the complete SPI
@ -1391,6 +1388,8 @@ static int mcp251xfd_handle_tefif(struct mcp251xfd_priv *priv)
if (err)
return err;
tx_ring->tail += len;
err = mcp251xfd_check_tef_tail(priv);
if (err)
return err;
@ -1553,10 +1552,8 @@ mcp251xfd_handle_rxif_ring(struct mcp251xfd_priv *priv,
/* Increment the RX FIFO tail pointer 'len' times in a
* single SPI message.
*/
ring->tail += len;
/* Note:
*
* Note:
*
* "cs_change == 1" on the last transfer results in an
* active chip select after the complete SPI
@ -1572,6 +1569,8 @@ mcp251xfd_handle_rxif_ring(struct mcp251xfd_priv *priv,
last_xfer->cs_change = 1;
if (err)
return err;
ring->tail += len;
}
return 0;

1
drivers/net/dsa/hirschmann/Kconfig
View File

@ -4,6 +4,7 @@ config NET_DSA_HIRSCHMANN_HELLCREEK
depends on HAS_IOMEM
depends on NET_DSA
depends on PTP_1588_CLOCK
depends on LEDS_CLASS
select NET_DSA_TAG_HELLCREEK
help
This driver adds support for Hirschmann Hellcreek TSN switches.

7
drivers/net/dsa/lantiq_gswip.c
View File

@ -1436,11 +1436,12 @@ static void gswip_phylink_validate(struct dsa_switch *ds, int port,
phylink_set(mask, Pause);
phylink_set(mask, Asym_Pause);
/* With the exclusion of MII and Reverse MII, we support Gigabit,
* including Half duplex
/* With the exclusion of MII, Reverse MII and Reduced MII, we
* support Gigabit, including Half duplex
*/
if (state->interface != PHY_INTERFACE_MODE_MII &&
state->interface != PHY_INTERFACE_MODE_REVMII) {
state->interface != PHY_INTERFACE_MODE_REVMII &&
state->interface != PHY_INTERFACE_MODE_RMII) {
phylink_set(mask, 1000baseT_Full);
phylink_set(mask, 1000baseT_Half);
}

71
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_cm.c
View File

@ -621,7 +621,7 @@ static void chtls_reset_synq(struct listen_ctx *listen_ctx)
while (!skb_queue_empty(&listen_ctx->synq)) {
struct chtls_sock *csk =
container_of((struct synq *)__skb_dequeue
container_of((struct synq *)skb_peek
(&listen_ctx->synq), struct chtls_sock, synq);
struct sock *child = csk->sk;
@ -1109,6 +1109,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
const struct cpl_pass_accept_req *req,
struct chtls_dev *cdev)
{
struct adapter *adap = pci_get_drvdata(cdev->pdev);
struct neighbour *n = NULL;
struct inet_sock *newinet;
const struct iphdr *iph;
@ -1118,9 +1119,10 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
struct dst_entry *dst;
struct tcp_sock *tp;
struct sock *newsk;
bool found = false;
u16 port_id;
int rxq_idx;
int step;
int step, i;
iph = (const struct iphdr *)network_hdr;
newsk = tcp_create_openreq_child(lsk, oreq, cdev->askb);
@ -1152,7 +1154,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
n = dst_neigh_lookup(dst, &ip6h->saddr);
#endif
}
if (!n)
if (!n || !n->dev)
goto free_sk;
ndev = n->dev;
@ -1161,6 +1163,13 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
if (is_vlan_dev(ndev))
ndev = vlan_dev_real_dev(ndev);
for_each_port(adap, i)
if (cdev->ports[i] == ndev)
found = true;
if (!found)
goto free_dst;
port_id = cxgb4_port_idx(ndev);
csk = chtls_sock_create(cdev);
@ -1238,6 +1247,7 @@ static struct sock *chtls_recv_sock(struct sock *lsk,
free_csk:
chtls_sock_release(&csk->kref);
free_dst:
neigh_release(n);
dst_release(dst);
free_sk:
inet_csk_prepare_forced_close(newsk);
@ -1387,7 +1397,7 @@ static void chtls_pass_accept_request(struct sock *sk,
newsk = chtls_recv_sock(sk, oreq, network_hdr, req, cdev);
if (!newsk)
goto free_oreq;
goto reject;
if (chtls_get_module(newsk))
goto reject;
@ -1403,8 +1413,6 @@ static void chtls_pass_accept_request(struct sock *sk,
kfree_skb(skb);
return;
free_oreq:
chtls_reqsk_free(oreq);
reject:
mk_tid_release(reply_skb, 0, tid);
cxgb4_ofld_send(cdev->lldi->ports[0], reply_skb);
@ -1589,6 +1597,11 @@ static int chtls_pass_establish(struct chtls_dev *cdev, struct sk_buff *skb)
sk_wake_async(sk, 0, POLL_OUT);
data = lookup_stid(cdev->tids, stid);
if (!data) {
/* listening server close */
kfree_skb(skb);
goto unlock;
}
lsk = ((struct listen_ctx *)data)->lsk;
bh_lock_sock(lsk);
@ -1997,39 +2010,6 @@ static void t4_defer_reply(struct sk_buff *skb, struct chtls_dev *cdev,
spin_unlock_bh(&cdev->deferq.lock);
}
static void send_abort_rpl(struct sock *sk, struct sk_buff *skb,
struct chtls_dev *cdev, int status, int queue)
{
struct cpl_abort_req_rss *req = cplhdr(skb);
struct sk_buff *reply_skb;
struct chtls_sock *csk;
csk = rcu_dereference_sk_user_data(sk);
reply_skb = alloc_skb(sizeof(struct cpl_abort_rpl),
GFP_KERNEL);
if (!reply_skb) {
req->status = (queue << 1);
t4_defer_reply(skb, cdev, send_defer_abort_rpl);
return;
}
set_abort_rpl_wr(reply_skb, GET_TID(req), status);
kfree_skb(skb);
set_wr_txq(reply_skb, CPL_PRIORITY_DATA, queue);
if (csk_conn_inline(csk)) {
struct l2t_entry *e = csk->l2t_entry;
if (e && sk->sk_state != TCP_SYN_RECV) {
cxgb4_l2t_send(csk->egress_dev, reply_skb, e);
return;
}
}
cxgb4_ofld_send(cdev->lldi->ports[0], reply_skb);
}
static void chtls_send_abort_rpl(struct sock *sk, struct sk_buff *skb,
struct chtls_dev *cdev,
int status, int queue)
@ -2078,9 +2058,9 @@ static void bl_abort_syn_rcv(struct sock *lsk, struct sk_buff *skb)
queue = csk->txq_idx;
skb->sk = NULL;
chtls_send_abort_rpl(child, skb, BLOG_SKB_CB(skb)->cdev,
CPL_ABORT_NO_RST, queue);
do_abort_syn_rcv(child, lsk);
send_abort_rpl(child, skb, BLOG_SKB_CB(skb)->cdev,
CPL_ABORT_NO_RST, queue);
}
static int abort_syn_rcv(struct sock *sk, struct sk_buff *skb)
@ -2110,8 +2090,8 @@ static int abort_syn_rcv(struct sock *sk, struct sk_buff *skb)
if (!sock_owned_by_user(psk)) {
int queue = csk->txq_idx;
chtls_send_abort_rpl(sk, skb, cdev, CPL_ABORT_NO_RST, queue);
do_abort_syn_rcv(sk, psk);
send_abort_rpl(sk, skb, cdev, CPL_ABORT_NO_RST, queue);
} else {
skb->sk = sk;
BLOG_SKB_CB(skb)->backlog_rcv = bl_abort_syn_rcv;
@ -2129,9 +2109,6 @@ static void chtls_abort_req_rss(struct sock *sk, struct sk_buff *skb)
int queue = csk->txq_idx;
if (is_neg_adv(req->status)) {
if (sk->sk_state == TCP_SYN_RECV)
chtls_set_tcb_tflag(sk, 0, 0);
kfree_skb(skb);
return;
}
@ -2158,12 +2135,12 @@ static void chtls_abort_req_rss(struct sock *sk, struct sk_buff *skb)
if (sk->sk_state == TCP_SYN_RECV && !abort_syn_rcv(sk, skb))
return;
chtls_release_resources(sk);
chtls_conn_done(sk);
}
chtls_send_abort_rpl(sk, skb, BLOG_SKB_CB(skb)->cdev,
rst_status, queue);
chtls_release_resources(sk);
chtls_conn_done(sk);
}
static void chtls_abort_rpl_rss(struct sock *sk, struct sk_buff *skb)

1
drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
View File

@ -223,3 +223,4 @@ static struct platform_driver fs_enet_bb_mdio_driver = {
};
module_platform_driver(fs_enet_bb_mdio_driver);
MODULE_LICENSE("GPL");

1
drivers/net/ethernet/freescale/fs_enet/mii-fec.c
View File

@ -224,3 +224,4 @@ static struct platform_driver fs_enet_fec_mdio_driver = {
};
module_platform_driver(fs_enet_fec_mdio_driver);
MODULE_LICENSE("GPL");

4
drivers/net/ethernet/hisilicon/hns3/hclge_mbx.h
View File

@ -169,7 +169,7 @@ struct hclgevf_mbx_arq_ring {
#define hclge_mbx_ring_ptr_move_crq(crq) \
(crq->next_to_use = (crq->next_to_use + 1) % crq->desc_num)
#define hclge_mbx_tail_ptr_move_arq(arq) \
(arq.tail = (arq.tail + 1) % HCLGE_MBX_MAX_ARQ_MSG_SIZE)
(arq.tail = (arq.tail + 1) % HCLGE_MBX_MAX_ARQ_MSG_NUM)
#define hclge_mbx_head_ptr_move_arq(arq) \
(arq.head = (arq.head + 1) % HCLGE_MBX_MAX_ARQ_MSG_SIZE)
(arq.head = (arq.head + 1) % HCLGE_MBX_MAX_ARQ_MSG_NUM)
#endif

9
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
View File

@ -752,7 +752,8 @@ static int hclge_get_sset_count(struct hnae3_handle *handle, int stringset)
handle->flags |= HNAE3_SUPPORT_SERDES_SERIAL_LOOPBACK;
handle->flags |= HNAE3_SUPPORT_SERDES_PARALLEL_LOOPBACK;
if (hdev->hw.mac.phydev) {
if (hdev->hw.mac.phydev && hdev->hw.mac.phydev->drv &&
hdev->hw.mac.phydev->drv->set_loopback) {
count += 1;
handle->flags |= HNAE3_SUPPORT_PHY_LOOPBACK;
}
@ -4537,8 +4538,8 @@ static int hclge_set_rss_tuple(struct hnae3_handle *handle,
req->ipv4_sctp_en = tuple_sets;
break;
case SCTP_V6_FLOW:
if ((nfc->data & RXH_L4_B_0_1) ||
(nfc->data & RXH_L4_B_2_3))
if (hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 &&
(nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)))
return -EINVAL;
req->ipv6_sctp_en = tuple_sets;
@ -4730,6 +4731,8 @@ static void hclge_rss_init_cfg(struct hclge_dev *hdev)
vport[i].rss_tuple_sets.ipv6_udp_en =
HCLGE_RSS_INPUT_TUPLE_OTHER;
vport[i].rss_tuple_sets.ipv6_sctp_en =
hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 ?
HCLGE_RSS_INPUT_TUPLE_SCTP_NO_PORT :
HCLGE_RSS_INPUT_TUPLE_SCTP;
vport[i].rss_tuple_sets.ipv6_fragment_en =
HCLGE_RSS_INPUT_TUPLE_OTHER;

2
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
View File

@ -107,6 +107,8 @@
#define HCLGE_D_IP_BIT BIT(2)
#define HCLGE_S_IP_BIT BIT(3)
#define HCLGE_V_TAG_BIT BIT(4)
#define HCLGE_RSS_INPUT_TUPLE_SCTP_NO_PORT \
(HCLGE_D_IP_BIT | HCLGE_S_IP_BIT | HCLGE_V_TAG_BIT)
#define HCLGE_RSS_TC_SIZE_0 1
#define HCLGE_RSS_TC_SIZE_1 2

9
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
View File

@ -917,8 +917,8 @@ static int hclgevf_set_rss_tuple(struct hnae3_handle *handle,
req->ipv4_sctp_en = tuple_sets;
break;
case SCTP_V6_FLOW:
if ((nfc->data & RXH_L4_B_0_1) ||
(nfc->data & RXH_L4_B_2_3))
if (hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 &&
(nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)))
return -EINVAL;
req->ipv6_sctp_en = tuple_sets;
@ -2502,7 +2502,10 @@ static void hclgevf_rss_init_cfg(struct hclgevf_dev *hdev)
tuple_sets->ipv4_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER;
tuple_sets->ipv6_tcp_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER;
tuple_sets->ipv6_udp_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER;
tuple_sets->ipv6_sctp_en = HCLGEVF_RSS_INPUT_TUPLE_SCTP;
tuple_sets->ipv6_sctp_en =
hdev->ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2 ?
HCLGEVF_RSS_INPUT_TUPLE_SCTP_NO_PORT :
HCLGEVF_RSS_INPUT_TUPLE_SCTP;
tuple_sets->ipv6_fragment_en = HCLGEVF_RSS_INPUT_TUPLE_OTHER;
}

2
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
View File

@ -122,6 +122,8 @@
#define HCLGEVF_D_IP_BIT BIT(2)
#define HCLGEVF_S_IP_BIT BIT(3)
#define HCLGEVF_V_TAG_BIT BIT(4)
#define HCLGEVF_RSS_INPUT_TUPLE_SCTP_NO_PORT \
(HCLGEVF_D_IP_BIT | HCLGEVF_S_IP_BIT | HCLGEVF_V_TAG_BIT)
#define HCLGEVF_STATS_TIMER_INTERVAL 36U

2
drivers/net/ethernet/marvell/mvneta.c
View File

@ -4432,7 +4432,7 @@ static int mvneta_xdp_setup(struct net_device *dev, struct bpf_prog *prog,
struct bpf_prog *old_prog;
if (prog && dev->mtu > MVNETA_MAX_RX_BUF_SIZE) {
NL_SET_ERR_MSG_MOD(extack, "Jumbo frames not supported on XDP");
NL_SET_ERR_MSG_MOD(extack, "MTU too large for XDP");
return -EOPNOTSUPP;
}

14
drivers/net/ethernet/marvell/octeontx2/af/cgx.c
View File

@ -871,8 +871,10 @@ static int cgx_lmac_init(struct cgx *cgx)
if (!lmac)
return -ENOMEM;
lmac->name = kcalloc(1, sizeof("cgx_fwi_xxx_yyy"), GFP_KERNEL);
if (!lmac->name)
return -ENOMEM;
if (!lmac->name) {
err = -ENOMEM;
goto err_lmac_free;
}
sprintf(lmac->name, "cgx_fwi_%d_%d", cgx->cgx_id, i);
lmac->lmac_id = i;
lmac->cgx = cgx;
@ -883,7 +885,7 @@ static int cgx_lmac_init(struct cgx *cgx)
CGX_LMAC_FWI + i * 9),
cgx_fwi_event_handler, 0, lmac->name, lmac);
if (err)
return err;
goto err_irq;
/* Enable interrupt */
cgx_write(cgx, lmac->lmac_id, CGXX_CMRX_INT_ENA_W1S,
@ -895,6 +897,12 @@ static int cgx_lmac_init(struct cgx *cgx)
}
return cgx_lmac_verify_fwi_version(cgx);
err_irq:
kfree(lmac->name);
err_lmac_free:
kfree(lmac);
return err;
}
static int cgx_lmac_exit(struct cgx *cgx)

5
drivers/net/ethernet/mellanox/mlx5/core/en/rep/tc.c
View File

@ -626,6 +626,11 @@ bool mlx5e_rep_tc_update_skb(struct mlx5_cqe64 *cqe,
if (!reg_c0)
return true;
/* If reg_c0 is not equal to the default flow tag then skb->mark
* is not supported and must be reset back to 0.
*/
skb->mark = 0;
priv = netdev_priv(skb->dev);
esw = priv->mdev->priv.eswitch;

77
drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c
View File

@ -118,16 +118,17 @@ struct mlx5_ct_tuple {
u16 zone;
};
struct mlx5_ct_shared_counter {
struct mlx5_ct_counter {
struct mlx5_fc *counter;
refcount_t refcount;
bool is_shared;
};
struct mlx5_ct_entry {
struct rhash_head node;
struct rhash_head tuple_node;
struct rhash_head tuple_nat_node;
struct mlx5_ct_shared_counter *shared_counter;
struct mlx5_ct_counter *counter;
unsigned long cookie;
unsigned long restore_cookie;
struct mlx5_ct_tuple tuple;
@ -394,13 +395,14 @@ mlx5_tc_ct_set_tuple_match(struct mlx5e_priv *priv, struct mlx5_flow_spec *spec,
}
static void
mlx5_tc_ct_shared_counter_put(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_entry *entry)
mlx5_tc_ct_counter_put(struct mlx5_tc_ct_priv *ct_priv, struct mlx5_ct_entry *entry)
{
if (!refcount_dec_and_test(&entry->shared_counter->refcount))
if (entry->counter->is_shared &&
!refcount_dec_and_test(&entry->counter->refcount))
return;
mlx5_fc_destroy(ct_priv->dev, entry->shared_counter->counter);
kfree(entry->shared_counter);
mlx5_fc_destroy(ct_priv->dev, entry->counter->counter);
kfree(entry->counter);
}
static void
@ -699,7 +701,7 @@ mlx5_tc_ct_entry_add_rule(struct mlx5_tc_ct_priv *ct_priv,
attr->dest_ft = ct_priv->post_ct;
attr->ft = nat ? ct_priv->ct_nat : ct_priv->ct;
attr->outer_match_level = MLX5_MATCH_L4;
attr->counter = entry->shared_counter->counter;
attr->counter = entry->counter->counter;
attr->flags |= MLX5_ESW_ATTR_FLAG_NO_IN_PORT;
mlx5_tc_ct_set_tuple_match(netdev_priv(ct_priv->netdev), spec, flow_rule);
@ -732,13 +734,34 @@ err_attr:
return err;
}
static struct mlx5_ct_shared_counter *
static struct mlx5_ct_counter *
mlx5_tc_ct_counter_create(struct mlx5_tc_ct_priv *ct_priv)
{
struct mlx5_ct_counter *counter;
int ret;
counter = kzalloc(sizeof(*counter), GFP_KERNEL);
if (!counter)
return ERR_PTR(-ENOMEM);
counter->is_shared = false;
counter->counter = mlx5_fc_create(ct_priv->dev, true);
if (IS_ERR(counter->counter)) {
ct_dbg("Failed to create counter for ct entry");
ret = PTR_ERR(counter->counter);
kfree(counter);
return ERR_PTR(ret);
}
return counter;
}
static struct mlx5_ct_counter *
mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv,
struct mlx5_ct_entry *entry)
{
struct mlx5_ct_tuple rev_tuple = entry->tuple;
struct mlx5_ct_shared_counter *shared_counter;
struct mlx5_core_dev *dev = ct_priv->dev;
struct mlx5_ct_counter *shared_counter;
struct mlx5_ct_entry *rev_entry;
__be16 tmp_port;
int ret;
@ -767,25 +790,20 @@ mlx5_tc_ct_shared_counter_get(struct mlx5_tc_ct_priv *ct_priv,
rev_entry = rhashtable_lookup_fast(&ct_priv->ct_tuples_ht, &rev_tuple,
tuples_ht_params);
if (rev_entry) {
if (refcount_inc_not_zero(&rev_entry->shared_counter->refcount)) {
if (refcount_inc_not_zero(&rev_entry->counter->refcount)) {
mutex_unlock(&ct_priv->shared_counter_lock);
return rev_entry->shared_counter;
return rev_entry->counter;
}
}
mutex_unlock(&ct_priv->shared_counter_lock);
shared_counter = kzalloc(sizeof(*shared_counter), GFP_KERNEL);
if (!shared_counter)
return ERR_PTR(-ENOMEM);
shared_counter->counter = mlx5_fc_create(dev, true);
if (IS_ERR(shared_counter->counter)) {
ct_dbg("Failed to create counter for ct entry");
ret = PTR_ERR(shared_counter->counter);
kfree(shared_counter);
shared_counter = mlx5_tc_ct_counter_create(ct_priv);
if (IS_ERR(shared_counter)) {
ret = PTR_ERR(shared_counter);
return ERR_PTR(ret);
}
shared_counter->is_shared = true;
refcount_set(&shared_counter->refcount, 1);
return shared_counter;
}
@ -798,10 +816,13 @@ mlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv,
{
int err;
entry->shared_counter = mlx5_tc_ct_shared_counter_get(ct_priv, entry);
if (IS_ERR(entry->shared_counter)) {
err = PTR_ERR(entry->shared_counter);
ct_dbg("Failed to create counter for ct entry");
if (nf_ct_acct_enabled(dev_net(ct_priv->netdev)))
entry->counter = mlx5_tc_ct_counter_create(ct_priv);
else
entry->counter = mlx5_tc_ct_shared_counter_get(ct_priv, entry);
if (IS_ERR(entry->counter)) {
err = PTR_ERR(entry->counter);
return err;
}
@ -820,7 +841,7 @@ mlx5_tc_ct_entry_add_rules(struct mlx5_tc_ct_priv *ct_priv,
err_nat:
mlx5_tc_ct_entry_del_rule(ct_priv, entry, false);
err_orig:
mlx5_tc_ct_shared_counter_put(ct_priv, entry);
mlx5_tc_ct_counter_put(ct_priv, entry);
return err;
}
@ -918,7 +939,7 @@ mlx5_tc_ct_del_ft_entry(struct mlx5_tc_ct_priv *ct_priv,
rhashtable_remove_fast(&ct_priv->ct_tuples_ht, &entry->tuple_node,
tuples_ht_params);
mutex_unlock(&ct_priv->shared_counter_lock);
mlx5_tc_ct_shared_counter_put(ct_priv, entry);
mlx5_tc_ct_counter_put(ct_priv, entry);
}
@ -956,7 +977,7 @@ mlx5_tc_ct_block_flow_offload_stats(struct mlx5_ct_ft *ft,
if (!entry)
return -ENOENT;
mlx5_fc_query_cached(entry->shared_counter->counter, &bytes, &packets, &lastuse);
mlx5_fc_query_cached(entry->counter->counter, &bytes, &packets, &lastuse);
flow_stats_update(&f->stats, bytes, packets, 0, lastuse,
FLOW_ACTION_HW_STATS_DELAYED);

9
drivers/net/ethernet/mellanox/mlx5/core/en/txrx.h
View File

@ -371,6 +371,15 @@ struct mlx5e_swp_spec {
u8 tun_l4_proto;
};
static inline void mlx5e_eseg_swp_offsets_add_vlan(struct mlx5_wqe_eth_seg *eseg)
{
/* SWP offsets are in 2-bytes words */
eseg->swp_outer_l3_offset += VLAN_HLEN / 2;
eseg->swp_outer_l4_offset += VLAN_HLEN / 2;
eseg->swp_inner_l3_offset += VLAN_HLEN / 2;
eseg->swp_inner_l4_offset += VLAN_HLEN / 2;
}
static inline void
mlx5e_set_eseg_swp(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg,
struct mlx5e_swp_spec *swp_spec)

8
drivers/net/ethernet/mellanox/mlx5/core/en_accel/en_accel.h
View File

@ -51,7 +51,7 @@ static inline bool mlx5_geneve_tx_allowed(struct mlx5_core_dev *mdev)
}
static inline void
mlx5e_tx_tunnel_accel(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg)
mlx5e_tx_tunnel_accel(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg, u16 ihs)
{
struct mlx5e_swp_spec swp_spec = {};
unsigned int offset = 0;
@ -85,6 +85,8 @@ mlx5e_tx_tunnel_accel(struct sk_buff *skb, struct mlx5_wqe_eth_seg *eseg)
}
mlx5e_set_eseg_swp(skb, eseg, &swp_spec);
if (skb_vlan_tag_present(skb) && ihs)
mlx5e_eseg_swp_offsets_add_vlan(eseg);
}
#else
@ -163,7 +165,7 @@ static inline unsigned int mlx5e_accel_tx_ids_len(struct mlx5e_txqsq *sq,
static inline bool mlx5e_accel_tx_eseg(struct mlx5e_priv *priv,
struct sk_buff *skb,
struct mlx5_wqe_eth_seg *eseg)
struct mlx5_wqe_eth_seg *eseg, u16 ihs)
{
#ifdef CONFIG_MLX5_EN_IPSEC
if (xfrm_offload(skb))
@ -172,7 +174,7 @@ static inline bool mlx5e_accel_tx_eseg(struct mlx5e_priv *priv,
#if IS_ENABLED(CONFIG_GENEVE)
if (skb->encapsulation)
mlx5e_tx_tunnel_accel(skb, eseg);
mlx5e_tx_tunnel_accel(skb, eseg, ihs);
#endif
return true;

24
drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
View File

@ -1010,6 +1010,22 @@ static int mlx5e_get_link_ksettings(struct net_device *netdev,
return mlx5e_ethtool_get_link_ksettings(priv, link_ksettings);
}
static int mlx5e_speed_validate(struct net_device *netdev, bool ext,
const unsigned long link_modes, u8 autoneg)
{
/* Extended link-mode has no speed limitations. */
if (ext)
return 0;
if ((link_modes & MLX5E_PROT_MASK(MLX5E_56GBASE_R4)) &&
autoneg != AUTONEG_ENABLE) {
netdev_err(netdev, "%s: 56G link speed requires autoneg enabled\n",
__func__);
return -EINVAL;
}
return 0;
}
static u32 mlx5e_ethtool2ptys_adver_link(const unsigned long *link_modes)
{
u32 i, ptys_modes = 0;
@ -1103,13 +1119,9 @@ int mlx5e_ethtool_set_link_ksettings(struct mlx5e_priv *priv,
link_modes = autoneg == AUTONEG_ENABLE ? ethtool2ptys_adver_func(adver) :
mlx5e_port_speed2linkmodes(mdev, speed, !ext);
if ((link_modes & MLX5E_PROT_MASK(MLX5E_56GBASE_R4)) &&
autoneg != AUTONEG_ENABLE) {
netdev_err(priv->netdev, "%s: 56G link speed requires autoneg enabled\n",
__func__);
err = -EINVAL;
err = mlx5e_speed_validate(priv->netdev, ext, link_modes, autoneg);
if (err)
goto out;
}
link_modes = link_modes & eproto.cap;
if (!link_modes) {

3
drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
View File

@ -942,6 +942,7 @@ static int mlx5e_create_ttc_table_groups(struct mlx5e_ttc_table *ttc,
in = kvzalloc(inlen, GFP_KERNEL);
if (!in) {
kfree(ft->g);
ft->g = NULL;
return -ENOMEM;
}
@ -1087,6 +1088,7 @@ static int mlx5e_create_inner_ttc_table_groups(struct mlx5e_ttc_table *ttc)
in = kvzalloc(inlen, GFP_KERNEL);
if (!in) {
kfree(ft->g);
ft->g = NULL;
return -ENOMEM;
}
@ -1390,6 +1392,7 @@ err_destroy_groups:
ft->g[ft->num_groups] = NULL;
mlx5e_destroy_groups(ft);
kvfree(in);
kfree(ft->g);
return err;
}

3
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -3161,7 +3161,8 @@ static void mlx5e_modify_admin_state(struct mlx5_core_dev *mdev,
mlx5_set_port_admin_status(mdev, state);
if (mlx5_eswitch_mode(mdev) != MLX5_ESWITCH_LEGACY)
if (mlx5_eswitch_mode(mdev) == MLX5_ESWITCH_OFFLOADS ||
!MLX5_CAP_GEN(mdev, uplink_follow))
return;
if (state == MLX5_PORT_UP)

9
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
View File

@ -682,9 +682,9 @@ void mlx5e_tx_mpwqe_ensure_complete(struct mlx5e_txqsq *sq)
static bool mlx5e_txwqe_build_eseg(struct mlx5e_priv *priv, struct mlx5e_txqsq *sq,
struct sk_buff *skb, struct mlx5e_accel_tx_state *accel,
struct mlx5_wqe_eth_seg *eseg)
struct mlx5_wqe_eth_seg *eseg, u16 ihs)
{
if (unlikely(!mlx5e_accel_tx_eseg(priv, skb, eseg)))
if (unlikely(!mlx5e_accel_tx_eseg(priv, skb, eseg, ihs)))
return false;
mlx5e_txwqe_build_eseg_csum(sq, skb, accel, eseg);
@ -714,7 +714,8 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev)
if (mlx5e_tx_skb_supports_mpwqe(skb, &attr)) {
struct mlx5_wqe_eth_seg eseg = {};
if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &eseg)))
if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &eseg,
attr.ihs)))
return NETDEV_TX_OK;
mlx5e_sq_xmit_mpwqe(sq, skb, &eseg, netdev_xmit_more());
@ -731,7 +732,7 @@ netdev_tx_t mlx5e_xmit(struct sk_buff *skb, struct net_device *dev)
/* May update the WQE, but may not post other WQEs. */
mlx5e_accel_tx_finish(sq, wqe, &accel,
(struct mlx5_wqe_inline_seg *)(wqe->data + wqe_attr.ds_cnt_inl));
if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &wqe->eth)))
if (unlikely(!mlx5e_txwqe_build_eseg(priv, sq, skb, &accel, &wqe->eth, attr.ihs)))
return NETDEV_TX_OK;
mlx5e_sq_xmit_wqe(sq, skb, &attr, &wqe_attr, wqe, pi, netdev_xmit_more());

25
drivers/net/ethernet/mellanox/mlx5/core/esw/acl/egress_lgcy.c
View File

@ -95,22 +95,21 @@ int esw_acl_egress_lgcy_setup(struct mlx5_eswitch *esw,
return 0;
}
if (!IS_ERR_OR_NULL(vport->egress.acl))
return 0;
if (!vport->egress.acl) {
vport->egress.acl = esw_acl_table_create(esw, vport->vport,
MLX5_FLOW_NAMESPACE_ESW_EGRESS,
table_size);
if (IS_ERR(vport->egress.acl)) {
err = PTR_ERR(vport->egress.acl);
vport->egress.acl = NULL;
goto out;
}
vport->egress.acl = esw_acl_table_create(esw, vport->vport,
MLX5_FLOW_NAMESPACE_ESW_EGRESS,
table_size);
if (IS_ERR(vport->egress.acl)) {
err = PTR_ERR(vport->egress.acl);
vport->egress.acl = NULL;
goto out;
err = esw_acl_egress_lgcy_groups_create(esw, vport);
if (err)
goto out;
}
err = esw_acl_egress_lgcy_groups_create(esw, vport);
if (err)
goto out;
esw_debug(esw->dev,
"vport[%d] configure egress rules, vlan(%d) qos(%d)\n",
vport->vport, vport->info.vlan, vport->info.qos);

11
drivers/net/ethernet/mellanox/mlx5/core/lag.c
View File

@ -564,7 +564,9 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
struct mlx5_core_dev *tmp_dev;
int i, err;
if (!MLX5_CAP_GEN(dev, vport_group_manager))
if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
!MLX5_CAP_GEN(dev, lag_master) ||
MLX5_CAP_GEN(dev, num_lag_ports) != MLX5_MAX_PORTS)
return;
tmp_dev = mlx5_get_next_phys_dev(dev);
@ -582,12 +584,9 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
if (mlx5_lag_dev_add_pf(ldev, dev, netdev) < 0)
return;
for (i = 0; i < MLX5_MAX_PORTS; i++) {
tmp_dev = ldev->pf[i].dev;
if (!tmp_dev || !MLX5_CAP_GEN(tmp_dev, lag_master) ||
MLX5_CAP_GEN(tmp_dev, num_lag_ports) != MLX5_MAX_PORTS)
for (i = 0; i < MLX5_MAX_PORTS; i++)
if (!ldev->pf[i].dev)
break;
}
if (i >= MLX5_MAX_PORTS)
ldev->flags |= MLX5_LAG_FLAG_READY;

7
drivers/net/ethernet/mellanox/mlx5/core/main.c
View File

@ -1368,8 +1368,10 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *id)
MLX5_COREDEV_VF : MLX5_COREDEV_PF;
dev->priv.adev_idx = mlx5_adev_idx_alloc();
if (dev->priv.adev_idx < 0)
return dev->priv.adev_idx;
if (dev->priv.adev_idx < 0) {
err = dev->priv.adev_idx;
goto adev_init_err;
}
err = mlx5_mdev_init(dev, prof_sel);
if (err)
@ -1403,6 +1405,7 @@ pci_init_err:
mlx5_mdev_uninit(dev);
mdev_init_err:
mlx5_adev_idx_free(dev->priv.adev_idx);
adev_init_err:
mlx5_devlink_free(devlink);
return err;

2
drivers/net/ethernet/mellanox/mlx5/core/rdma.c
View File

@ -116,7 +116,7 @@ free:
static void mlx5_rdma_del_roce_addr(struct mlx5_core_dev *dev)
{
mlx5_core_roce_gid_set(dev, 0, 0, 0,
NULL, NULL, false, 0, 0);
NULL, NULL, false, 0, 1);
}
static void mlx5_rdma_make_default_gid(struct mlx5_core_dev *dev, union ib_gid *gid)

12
drivers/net/ethernet/natsemi/macsonic.c
View File

@ -506,10 +506,14 @@ static int mac_sonic_platform_probe(struct platform_device *pdev)
err = register_netdev(dev);
if (err)
goto out;
goto undo_probe;
return 0;
undo_probe:
dma_free_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
out:
free_netdev(dev);
@ -584,12 +588,16 @@ static int mac_sonic_nubus_probe(struct nubus_board *board)
err = register_netdev(ndev);
if (err)
goto out;
goto undo_probe;
nubus_set_drvdata(board, ndev);
return 0;
undo_probe:
dma_free_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
out:
free_netdev(ndev);
return err;

7
drivers/net/ethernet/natsemi/xtsonic.c
View File

@ -229,11 +229,14 @@ int xtsonic_probe(struct platform_device *pdev)
sonic_msg_init(dev);
if ((err = register_netdev(dev)))
goto out1;
goto undo_probe1;
return 0;
out1:
undo_probe1:
dma_free_coherent(lp->device,
SIZEOF_SONIC_DESC * SONIC_BUS_SCALE(lp->dma_bitmode),
lp->descriptors, lp->descriptors_laddr);
release_region(dev->base_addr, SONIC_MEM_SIZE);
out:
free_netdev(dev);

1
drivers/net/ethernet/qlogic/Kconfig
View File

@ -78,6 +78,7 @@ config QED
depends on PCI
select ZLIB_INFLATE
select CRC8
select CRC32
select NET_DEVLINK
help
This enables the support for Marvell FastLinQ adapters family.

129
drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
View File

@ -64,6 +64,7 @@ struct emac_variant {
* @variant: reference to the current board variant
* @regmap: regmap for using the syscon
* @internal_phy_powered: Does the internal PHY is enabled
* @use_internal_phy: Is the internal PHY selected for use
* @mux_handle: Internal pointer used by mdio-mux lib
*/
struct sunxi_priv_data {
@ -74,6 +75,7 @@ struct sunxi_priv_data {
const struct emac_variant *variant;
struct regmap_field *regmap_field;
bool internal_phy_powered;
bool use_internal_phy;
void *mux_handle;
};
@ -539,8 +541,11 @@ static const struct stmmac_dma_ops sun8i_dwmac_dma_ops = {
.dma_interrupt = sun8i_dwmac_dma_interrupt,
};
static int sun8i_dwmac_power_internal_phy(struct stmmac_priv *priv);
static int sun8i_dwmac_init(struct platform_device *pdev, void *priv)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct sunxi_priv_data *gmac = priv;
int ret;
@ -554,13 +559,25 @@ static int sun8i_dwmac_init(struct platform_device *pdev, void *priv)
ret = clk_prepare_enable(gmac->tx_clk);
if (ret) {
if (gmac->regulator)
regulator_disable(gmac->regulator);
dev_err(&pdev->dev, "Could not enable AHB clock\n");
return ret;
goto err_disable_regulator;
}
if (gmac->use_internal_phy) {
ret = sun8i_dwmac_power_internal_phy(netdev_priv(ndev));
if (ret)
goto err_disable_clk;
}
return 0;
err_disable_clk:
clk_disable_unprepare(gmac->tx_clk);
err_disable_regulator:
if (gmac->regulator)
regulator_disable(gmac->regulator);
return ret;
}
static void sun8i_dwmac_core_init(struct mac_device_info *hw,
@ -831,7 +848,6 @@ static int mdio_mux_syscon_switch_fn(int current_child, int desired_child,
struct sunxi_priv_data *gmac = priv->plat->bsp_priv;
u32 reg, val;
int ret = 0;
bool need_power_ephy = false;
if (current_child ^ desired_child) {
regmap_field_read(gmac->regmap_field, &reg);
@ -839,13 +855,12 @@ static int mdio_mux_syscon_switch_fn(int current_child, int desired_child,
case DWMAC_SUN8I_MDIO_MUX_INTERNAL_ID:
dev_info(priv->device, "Switch mux to internal PHY");
val = (reg & ~H3_EPHY_MUX_MASK) | H3_EPHY_SELECT;
need_power_ephy = true;
gmac->use_internal_phy = true;
break;
case DWMAC_SUN8I_MDIO_MUX_EXTERNAL_ID:
dev_info(priv->device, "Switch mux to external PHY");
val = (reg & ~H3_EPHY_MUX_MASK) | H3_EPHY_SHUTDOWN;
need_power_ephy = false;
gmac->use_internal_phy = false;
break;
default:
dev_err(priv->device, "Invalid child ID %x\n",
@ -853,7 +868,7 @@ static int mdio_mux_syscon_switch_fn(int current_child, int desired_child,
return -EINVAL;
}
regmap_field_write(gmac->regmap_field, val);
if (need_power_ephy) {
if (gmac->use_internal_phy) {
ret = sun8i_dwmac_power_internal_phy(priv);
if (ret)
return ret;
@ -883,22 +898,23 @@ static int sun8i_dwmac_register_mdio_mux(struct stmmac_priv *priv)
return ret;
}
static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
static int sun8i_dwmac_set_syscon(struct device *dev,
struct plat_stmmacenet_data *plat)
{
struct sunxi_priv_data *gmac = priv->plat->bsp_priv;
struct device_node *node = priv->device->of_node;
struct sunxi_priv_data *gmac = plat->bsp_priv;
struct device_node *node = dev->of_node;
int ret;
u32 reg, val;
ret = regmap_field_read(gmac->regmap_field, &val);
if (ret) {
dev_err(priv->device, "Fail to read from regmap field.\n");
dev_err(dev, "Fail to read from regmap field.\n");
return ret;
}
reg = gmac->variant->default_syscon_value;
if (reg != val)
dev_warn(priv->device,
dev_warn(dev,
"Current syscon value is not the default %x (expect %x)\n",
val, reg);
@ -911,9 +927,9 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
/* Force EPHY xtal frequency to 24MHz. */
reg |= H3_EPHY_CLK_SEL;
ret = of_mdio_parse_addr(priv->device, priv->plat->phy_node);
ret = of_mdio_parse_addr(dev, plat->phy_node);
if (ret < 0) {
dev_err(priv->device, "Could not parse MDIO addr\n");
dev_err(dev, "Could not parse MDIO addr\n");
return ret;
}
/* of_mdio_parse_addr returns a valid (0 ~ 31) PHY
@ -929,17 +945,17 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
if (!of_property_read_u32(node, "allwinner,tx-delay-ps", &val)) {
if (val % 100) {
dev_err(priv->device, "tx-delay must be a multiple of 100\n");
dev_err(dev, "tx-delay must be a multiple of 100\n");
return -EINVAL;
}
val /= 100;
dev_dbg(priv->device, "set tx-delay to %x\n", val);
dev_dbg(dev, "set tx-delay to %x\n", val);
if (val <= gmac->variant->tx_delay_max) {
reg &= ~(gmac->variant->tx_delay_max <<
SYSCON_ETXDC_SHIFT);
reg |= (val << SYSCON_ETXDC_SHIFT);
} else {
dev_err(priv->device, "Invalid TX clock delay: %d\n",
dev_err(dev, "Invalid TX clock delay: %d\n",
val);
return -EINVAL;
}
@ -947,17 +963,17 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
if (!of_property_read_u32(node, "allwinner,rx-delay-ps", &val)) {
if (val % 100) {
dev_err(priv->device, "rx-delay must be a multiple of 100\n");
dev_err(dev, "rx-delay must be a multiple of 100\n");
return -EINVAL;
}
val /= 100;
dev_dbg(priv->device, "set rx-delay to %x\n", val);
dev_dbg(dev, "set rx-delay to %x\n", val);
if (val <= gmac->variant->rx_delay_max) {
reg &= ~(gmac->variant->rx_delay_max <<
SYSCON_ERXDC_SHIFT);
reg |= (val << SYSCON_ERXDC_SHIFT);
} else {
dev_err(priv->device, "Invalid RX clock delay: %d\n",
dev_err(dev, "Invalid RX clock delay: %d\n",
val);
return -EINVAL;
}
@ -968,7 +984,7 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
if (gmac->variant->support_rmii)
reg &= ~SYSCON_RMII_EN;
switch (priv->plat->interface) {
switch (plat->interface) {
case PHY_INTERFACE_MODE_MII:
/* default */
break;
@ -982,8 +998,8 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv)
reg |= SYSCON_RMII_EN | SYSCON_ETCS_EXT_GMII;
break;
default:
dev_err(priv->device, "Unsupported interface mode: %s",
phy_modes(priv->plat->interface));
dev_err(dev, "Unsupported interface mode: %s",
phy_modes(plat->interface));
return -EINVAL;
}
@ -1004,17 +1020,10 @@ static void sun8i_dwmac_exit(struct platform_device *pdev, void *priv)
struct sunxi_priv_data *gmac = priv;
if (gmac->variant->soc_has_internal_phy) {
/* sun8i_dwmac_exit could be called with mdiomux uninit */
if (gmac->mux_handle)
mdio_mux_uninit(gmac->mux_handle);
if (gmac->internal_phy_powered)
sun8i_dwmac_unpower_internal_phy(gmac);
}
sun8i_dwmac_unset_syscon(gmac);
reset_control_put(gmac->rst_ephy);
clk_disable_unprepare(gmac->tx_clk);
if (gmac->regulator)
@ -1049,16 +1058,11 @@ static struct mac_device_info *sun8i_dwmac_setup(void *ppriv)
{
struct mac_device_info *mac;
struct stmmac_priv *priv = ppriv;
int ret;
mac = devm_kzalloc(priv->device, sizeof(*mac), GFP_KERNEL);
if (!mac)
return NULL;
ret = sun8i_dwmac_set_syscon(priv);
if (ret)
return NULL;
mac->pcsr = priv->ioaddr;
mac->mac = &sun8i_dwmac_ops;
mac->dma = &sun8i_dwmac_dma_ops;
@ -1134,10 +1138,6 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
if (ret)
return ret;
plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac);
if (IS_ERR(plat_dat))
return PTR_ERR(plat_dat);
gmac = devm_kzalloc(dev, sizeof(*gmac), GFP_KERNEL);
if (!gmac)
return -ENOMEM;
@ -1201,11 +1201,15 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
ret = of_get_phy_mode(dev->of_node, &interface);
if (ret)
return -EINVAL;
plat_dat->interface = interface;
plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac);
if (IS_ERR(plat_dat))
return PTR_ERR(plat_dat);
/* platform data specifying hardware features and callbacks.
* hardware features were copied from Allwinner drivers.
*/
plat_dat->interface = interface;
plat_dat->rx_coe = STMMAC_RX_COE_TYPE2;
plat_dat->tx_coe = 1;
plat_dat->has_sun8i = true;
@ -1214,9 +1218,13 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
plat_dat->exit = sun8i_dwmac_exit;
plat_dat->setup = sun8i_dwmac_setup;
ret = sun8i_dwmac_set_syscon(&pdev->dev, plat_dat);
if (ret)
goto dwmac_deconfig;
ret = sun8i_dwmac_init(pdev, plat_dat->bsp_priv);
if (ret)
return ret;
goto dwmac_syscon;
ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
if (ret)
@ -1230,7 +1238,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
if (gmac->variant->soc_has_internal_phy) {
ret = get_ephy_nodes(priv);
if (ret)
goto dwmac_exit;
goto dwmac_remove;
ret = sun8i_dwmac_register_mdio_mux(priv);
if (ret) {
dev_err(&pdev->dev, "Failed to register mux\n");
@ -1239,15 +1247,42 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
} else {
ret = sun8i_dwmac_reset(priv);
if (ret)
goto dwmac_exit;
goto dwmac_remove;
}
return ret;
dwmac_mux:
sun8i_dwmac_unset_syscon(gmac);
reset_control_put(gmac->rst_ephy);
clk_put(gmac->ephy_clk);
dwmac_remove:
stmmac_dvr_remove(&pdev->dev);
dwmac_exit:
sun8i_dwmac_exit(pdev, gmac);
dwmac_syscon:
sun8i_dwmac_unset_syscon(gmac);
dwmac_deconfig:
stmmac_remove_config_dt(pdev, plat_dat);
return ret;
}
static int sun8i_dwmac_remove(struct platform_device *pdev)
{
struct net_device *ndev = platform_get_drvdata(pdev);
struct stmmac_priv *priv = netdev_priv(ndev);
struct sunxi_priv_data *gmac = priv->plat->bsp_priv;
if (gmac->variant->soc_has_internal_phy) {
mdio_mux_uninit(gmac->mux_handle);
sun8i_dwmac_unpower_internal_phy(gmac);
reset_control_put(gmac->rst_ephy);
clk_put(gmac->ephy_clk);
}
stmmac_pltfr_remove(pdev);
return ret;
sun8i_dwmac_unset_syscon(gmac);
return 0;
}
static const struct of_device_id sun8i_dwmac_match[] = {
@ -1269,7 +1304,7 @@ MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);
static struct platform_driver sun8i_dwmac_driver = {
.probe = sun8i_dwmac_probe,
.remove = stmmac_pltfr_remove,
.remove = sun8i_dwmac_remove,
.driver = {
.name = "dwmac-sun8i",
.pm = &stmmac_pltfr_pm_ops,

8
drivers/net/usb/cdc_ncm.c
View File

@ -1199,7 +1199,10 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign)
* accordingly. Otherwise, we should check here.
*/
if (ctx->drvflags & CDC_NCM_FLAG_NDP_TO_END)
delayed_ndp_size = ALIGN(ctx->max_ndp_size, ctx->tx_ndp_modulus);
delayed_ndp_size = ctx->max_ndp_size +
max_t(u32,
ctx->tx_ndp_modulus,
ctx->tx_modulus + ctx->tx_remainder) - 1;
else
delayed_ndp_size = 0;
@ -1410,7 +1413,8 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign)
if (!(dev->driver_info->flags & FLAG_SEND_ZLP) &&
skb_out->len > ctx->min_tx_pkt) {
padding_count = ctx->tx_curr_size - skb_out->len;
skb_put_zero(skb_out, padding_count);
if (!WARN_ON(padding_count > ctx->tx_curr_size))
skb_put_zero(skb_out, padding_count);
} else if (skb_out->len < ctx->tx_curr_size &&
(skb_out->len % dev->maxpacket) == 0) {
skb_put_u8(skb_out, 0); /* force short packet */

1
drivers/net/wan/Kconfig
View File

@ -282,6 +282,7 @@ config SLIC_DS26522
tristate "Slic Maxim ds26522 card support"
depends on SPI
depends on FSL_SOC || ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
select BITREVERSE
help
This module initializes and configures the slic maxim card
in T1 or E1 mode.

1
drivers/net/wireless/ath/wil6210/Kconfig
View File

@ -2,6 +2,7 @@
config WIL6210
tristate "Wilocity 60g WiFi card wil6210 support"
select WANT_DEV_COREDUMP
select CRC32
depends on CFG80211
depends on PCI
default n

2
drivers/ptp/Kconfig
View File

@ -64,6 +64,7 @@ config DP83640_PHY
depends on NETWORK_PHY_TIMESTAMPING
depends on PHYLIB
depends on PTP_1588_CLOCK
select CRC32
help
Supports the DP83640 PHYTER with IEEE 1588 features.
@ -78,6 +79,7 @@ config DP83640_PHY
config PTP_1588_CLOCK_INES
tristate "ZHAW InES PTP time stamping IP core"
depends on NETWORK_PHY_TIMESTAMPING
depends on HAS_IOMEM
depends on PHYLIB
depends on PTP_1588_CLOCK
help

3
drivers/s390/net/qeth_core.h
View File

@ -1079,7 +1079,8 @@ struct qeth_card *qeth_get_card_by_busid(char *bus_id);
void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads,
int clear_start_mask);
int qeth_threads_running(struct qeth_card *, unsigned long);
int qeth_set_offline(struct qeth_card *card, bool resetting);
int qeth_set_offline(struct qeth_card *card, const struct qeth_discipline *disc,
bool resetting);
int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
int (*reply_cb)

38
drivers/s390/net/qeth_core_main.c
View File

@ -5507,12 +5507,12 @@ out:
return rc;
}
static int qeth_set_online(struct qeth_card *card)
static int qeth_set_online(struct qeth_card *card,
const struct qeth_discipline *disc)
{
bool carrier_ok;
int rc;
mutex_lock(&card->discipline_mutex);
mutex_lock(&card->conf_mutex);
QETH_CARD_TEXT(card, 2, "setonlin");
@ -5529,7 +5529,7 @@ static int qeth_set_online(struct qeth_card *card)
/* no need for locking / error handling at this early stage: */
qeth_set_real_num_tx_queues(card, qeth_tx_actual_queues(card));
rc = card->discipline->set_online(card, carrier_ok);
rc = disc->set_online(card, carrier_ok);
if (rc)
goto err_online;
@ -5537,7 +5537,6 @@ static int qeth_set_online(struct qeth_card *card)
kobject_uevent(&card->gdev->dev.kobj, KOBJ_CHANGE);
mutex_unlock(&card->conf_mutex);
mutex_unlock(&card->discipline_mutex);
return 0;
err_online:
@ -5552,15 +5551,14 @@ err_hardsetup:
qdio_free(CARD_DDEV(card));
mutex_unlock(&card->conf_mutex);
mutex_unlock(&card->discipline_mutex);
return rc;
}
int qeth_set_offline(struct qeth_card *card, bool resetting)
int qeth_set_offline(struct qeth_card *card, const struct qeth_discipline *disc,
bool resetting)
{
int rc, rc2, rc3;
mutex_lock(&card->discipline_mutex);
mutex_lock(&card->conf_mutex);
QETH_CARD_TEXT(card, 3, "setoffl");
@ -5581,7 +5579,7 @@ int qeth_set_offline(struct qeth_card *card, bool resetting)
cancel_work_sync(&card->rx_mode_work);
card->discipline->set_offline(card);
disc->set_offline(card);
qeth_qdio_clear_card(card, 0);
qeth_drain_output_queues(card);
@ -5602,16 +5600,19 @@ int qeth_set_offline(struct qeth_card *card, bool resetting)
kobject_uevent(&card->gdev->dev.kobj, KOBJ_CHANGE);
mutex_unlock(&card->conf_mutex);
mutex_unlock(&card->discipline_mutex);
return 0;
}
EXPORT_SYMBOL_GPL(qeth_set_offline);
static int qeth_do_reset(void *data)
{
const struct qeth_discipline *disc;
struct qeth_card *card = data;
int rc;
/* Lock-free, other users will block until we are done. */
disc = card->discipline;
QETH_CARD_TEXT(card, 2, "recover1");
if (!qeth_do_run_thread(card, QETH_RECOVER_THREAD))
return 0;
@ -5619,8 +5620,8 @@ static int qeth_do_reset(void *data)
dev_warn(&card->gdev->dev,
"A recovery process has been started for the device\n");
qeth_set_offline(card, true);
rc = qeth_set_online(card);
qeth_set_offline(card, disc, true);
rc = qeth_set_online(card, disc);
if (!rc) {
dev_info(&card->gdev->dev,
"Device successfully recovered!\n");
@ -6584,6 +6585,7 @@ static int qeth_core_probe_device(struct ccwgroup_device *gdev)
break;
default:
card->info.layer_enforced = true;
/* It's so early that we don't need the discipline_mutex yet. */
rc = qeth_core_load_discipline(card, enforced_disc);
if (rc)
goto err_load;
@ -6616,10 +6618,12 @@ static void qeth_core_remove_device(struct ccwgroup_device *gdev)
QETH_CARD_TEXT(card, 2, "removedv");
mutex_lock(&card->discipline_mutex);
if (card->discipline) {
card->discipline->remove(gdev);
qeth_core_free_discipline(card);
}
mutex_unlock(&card->discipline_mutex);
qeth_free_qdio_queues(card);
@ -6634,6 +6638,7 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev)
int rc = 0;
enum qeth_discipline_id def_discipline;
mutex_lock(&card->discipline_mutex);
if (!card->discipline) {
def_discipline = IS_IQD(card) ? QETH_DISCIPLINE_LAYER3 :
QETH_DISCIPLINE_LAYER2;
@ -6647,16 +6652,23 @@ static int qeth_core_set_online(struct ccwgroup_device *gdev)
}
}
rc = qeth_set_online(card);
rc = qeth_set_online(card, card->discipline);
err:
mutex_unlock(&card->discipline_mutex);
return rc;
}
static int qeth_core_set_offline(struct ccwgroup_device *gdev)
{
struct qeth_card *card = dev_get_drvdata(&gdev->dev);
int rc;
return qeth_set_offline(card, false);
mutex_lock(&card->discipline_mutex);
rc = qeth_set_offline(card, card->discipline, false);
mutex_unlock(&card->discipline_mutex);
return rc;
}
static void qeth_core_shutdown(struct ccwgroup_device *gdev)

2
drivers/s390/net/qeth_l2_main.c
View File

@ -2208,7 +2208,7 @@ static void qeth_l2_remove_device(struct ccwgroup_device *gdev)
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
if (gdev->state == CCWGROUP_ONLINE)
qeth_set_offline(card, false);
qeth_set_offline(card, card->discipline, false);
cancel_work_sync(&card->close_dev_work);
if (card->dev->reg_state == NETREG_REGISTERED)

4
drivers/s390/net/qeth_l3_main.c
View File

@ -1813,7 +1813,7 @@ static netdev_features_t qeth_l3_osa_features_check(struct sk_buff *skb,
struct net_device *dev,
netdev_features_t features)
{
if (qeth_get_ip_version(skb) != 4)
if (vlan_get_protocol(skb) != htons(ETH_P_IP))
features &= ~NETIF_F_HW_VLAN_CTAG_TX;
return qeth_features_check(skb, dev, features);
}
@ -1971,7 +1971,7 @@ static void qeth_l3_remove_device(struct ccwgroup_device *cgdev)
wait_event(card->wait_q, qeth_threads_running(card, 0xffffffff) == 0);
if (cgdev->state == CCWGROUP_ONLINE)
qeth_set_offline(card, false);
qeth_set_offline(card, card->discipline, false);
cancel_work_sync(&card->close_dev_work);
if (card->dev->reg_state == NETREG_REGISTERED)

3
include/linux/mlx5/mlx5_ifc.h
View File

@ -1280,7 +1280,8 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 ece_support[0x1];
u8 reserved_at_a4[0x7];
u8 log_max_srq[0x5];
u8 reserved_at_b0[0x2];
u8 reserved_at_b0[0x1];
u8 uplink_follow[0x1];
u8 ts_cqe_to_dest_cqn[0x1];
u8 reserved_at_b3[0xd];

5
include/uapi/linux/if_link.h
View File

@ -75,8 +75,9 @@ struct rtnl_link_stats {
*
* @rx_dropped: Number of packets received but not processed,
* e.g. due to lack of resources or unsupported protocol.
* For hardware interfaces this counter should not include packets
* dropped by the device which are counted separately in
* For hardware interfaces this counter may include packets discarded
* due to L2 address filtering but should not include packets dropped
* by the device due to buffer exhaustion which are counted separately in
* @rx_missed_errors (since procfs folds those two counters together).
*
* @tx_dropped: Number of packets dropped on their way to transmission,

1
kernel/bpf/task_iter.c
View File

@ -159,6 +159,7 @@ again:
}
/* set info->task and info->tid */
info->task = curr_task;
if (curr_tid == info->tid) {
curr_fd = info->fd;
} else {

3
net/8021q/vlan.c
View File

@ -284,7 +284,8 @@ static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)
return 0;
out_free_newdev:
if (new_dev->reg_state == NETREG_UNINITIALIZED)
if (new_dev->reg_state == NETREG_UNINITIALIZED ||
new_dev->reg_state == NETREG_UNREGISTERED)
free_netdev(new_dev);
return err;
}

2
net/ipv4/ip_output.c
View File

@ -302,7 +302,7 @@ static int __ip_finish_output(struct net *net, struct sock *sk, struct sk_buff *
if (skb_is_gso(skb))
return ip_finish_output_gso(net, sk, skb, mtu);
if (skb->len > mtu || (IPCB(skb)->flags & IPSKB_FRAG_PMTU))
if (skb->len > mtu || IPCB(skb)->frag_max_size)
return ip_fragment(net, sk, skb, mtu, ip_finish_output2);
return ip_finish_output2(net, sk, skb);

11
net/ipv4/ip_tunnel.c
View File

@ -759,8 +759,11 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
goto tx_error;
}
if (tnl_update_pmtu(dev, skb, rt, tnl_params->frag_off, inner_iph,
0, 0, false)) {
df = tnl_params->frag_off;
if (skb->protocol == htons(ETH_P_IP) && !tunnel->ignore_df)
df |= (inner_iph->frag_off & htons(IP_DF));
if (tnl_update_pmtu(dev, skb, rt, df, inner_iph, 0, 0, false)) {
ip_rt_put(rt);
goto tx_error;
}
@ -788,10 +791,6 @@ void ip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev,
ttl = ip4_dst_hoplimit(&rt->dst);
}
df = tnl_params->frag_off;
if (skb->protocol == htons(ETH_P_IP) && !tunnel->ignore_df)
df |= (inner_iph->frag_off&htons(IP_DF));
max_headroom = LL_RESERVED_SPACE(rt->dst.dev) + sizeof(struct iphdr)
+ rt->dst.header_len + ip_encap_hlen(&tunnel->encap);
if (max_headroom > dev->needed_headroom)

6
net/ipv4/nexthop.c
View File

@ -627,7 +627,7 @@ static int nh_check_attr_group(struct net *net, struct nlattr *tb[],
for (i = NHA_GROUP_TYPE + 1; i < __NHA_MAX; ++i) {
if (!tb[i])
continue;
if (tb[NHA_FDB])
if (i == NHA_FDB)
continue;
NL_SET_ERR_MSG(extack,
"No other attributes can be set in nexthop groups");
@ -1459,8 +1459,10 @@ static struct nexthop *nexthop_create_group(struct net *net,
return nh;
out_no_nh:
for (; i >= 0; --i)
for (i--; i >= 0; --i) {
list_del(&nhg->nh_entries[i].nh_list);
nexthop_put(nhg->nh_entries[i].nh);
}
kfree(nhg->spare);
kfree(nhg);

5
net/ipv6/ip6_fib.c
View File

@ -1025,6 +1025,8 @@ static void fib6_purge_rt(struct fib6_info *rt, struct fib6_node *fn,
{
struct fib6_table *table = rt->fib6_table;
/* Flush all cached dst in exception table */
rt6_flush_exceptions(rt);
fib6_drop_pcpu_from(rt, table);
if (rt->nh && !list_empty(&rt->nh_list))
@ -1927,9 +1929,6 @@ static void fib6_del_route(struct fib6_table *table, struct fib6_node *fn,
net->ipv6.rt6_stats->fib_rt_entries--;
net->ipv6.rt6_stats->fib_discarded_routes++;
/* Flush all cached dst in exception table */
rt6_flush_exceptions(rt);
/* Reset round-robin state, if necessary */
if (rcu_access_pointer(fn->rr_ptr) == rt)
fn->rr_ptr = NULL;

7
net/qrtr/ns.c
View File

@ -755,7 +755,7 @@ static void qrtr_ns_data_ready(struct sock *sk)
queue_work(qrtr_ns.workqueue, &qrtr_ns.work);
}
void qrtr_ns_init(void)
int qrtr_ns_init(void)
{
struct sockaddr_qrtr sq;
int ret;
@ -766,7 +766,7 @@ void qrtr_ns_init(void)
ret = sock_create_kern(&init_net, AF_QIPCRTR, SOCK_DGRAM,
PF_QIPCRTR, &qrtr_ns.sock);
if (ret < 0)
return;
return ret;
ret = kernel_getsockname(qrtr_ns.sock, (struct sockaddr *)&sq);
if (ret < 0) {
@ -797,12 +797,13 @@ void qrtr_ns_init(void)
if (ret < 0)
goto err_wq;
return;
return 0;
err_wq:
destroy_workqueue(qrtr_ns.workqueue);
err_sock:
sock_release(qrtr_ns.sock);
return ret;
}
EXPORT_SYMBOL_GPL(qrtr_ns_init);

16
net/qrtr/qrtr.c
View File

@ -1287,13 +1287,19 @@ static int __init qrtr_proto_init(void)
return rc;
rc = sock_register(&qrtr_family);
if (rc) {
proto_unregister(&qrtr_proto);
return rc;
}
if (rc)
goto err_proto;
qrtr_ns_init();
rc = qrtr_ns_init();
if (rc)
goto err_sock;
return 0;
err_sock:
sock_unregister(qrtr_family.family);
err_proto:
proto_unregister(&qrtr_proto);
return rc;
}
postcore_initcall(qrtr_proto_init);

2
net/qrtr/qrtr.h
View File

@ -29,7 +29,7 @@ void qrtr_endpoint_unregister(struct qrtr_endpoint *ep);
int qrtr_endpoint_post(struct qrtr_endpoint *ep, const void *data, size_t len);
void qrtr_ns_init(void);
int qrtr_ns_init(void);
void qrtr_ns_remove(void);

1
net/wireless/Kconfig
View File

@ -21,6 +21,7 @@ config CFG80211
tristate "cfg80211 - wireless configuration API"
depends on RFKILL || !RFKILL
select FW_LOADER
select CRC32
# may need to update this when certificates are changed and are
# using a different algorithm, though right now they shouldn't
# (this is here rather than below to allow it to be a module)

1
tools/bpf/bpftool/net.c
View File

@ -11,7 +11,6 @@
#include <bpf/bpf.h>
#include <bpf/libbpf.h>
#include <net/if.h>
#include <linux/if.h>
#include <linux/rtnetlink.h>
#include <linux/socket.h>
#include <linux/tc_act/tc_bpf.h>

17
tools/bpf/resolve_btfids/main.c
View File

@ -139,6 +139,8 @@ int eprintf(int level, int var, const char *fmt, ...)
#define pr_debug2(fmt, ...) pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_err(fmt, ...) \
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
#define pr_info(fmt, ...) \
eprintf(0, verbose, pr_fmt(fmt), ##__VA_ARGS__)
static bool is_btf_id(const char *name)
{
@ -472,7 +474,7 @@ static int symbols_resolve(struct object *obj)
int nr_funcs = obj->nr_funcs;
int err, type_id;
struct btf *btf;
__u32 nr;
__u32 nr_types;
btf = btf__parse(obj->btf ?: obj->path, NULL);
err = libbpf_get_error(btf);
@ -483,12 +485,12 @@ static int symbols_resolve(struct object *obj)
}
err = -1;
nr = btf__get_nr_types(btf);
nr_types = btf__get_nr_types(btf);
/*
* Iterate all the BTF types and search for collected symbol IDs.
*/
for (type_id = 1; type_id <= nr; type_id++) {
for (type_id = 1; type_id <= nr_types; type_id++) {
const struct btf_type *type;
struct rb_root *root;
struct btf_id *id;
@ -526,8 +528,13 @@ static int symbols_resolve(struct object *obj)
id = btf_id__find(root, str);
if (id) {
id->id = type_id;
(*nr)--;
if (id->id) {
pr_info("WARN: multiple IDs found for '%s': %d, %d - using %d\n",
str, id->id, type_id, id->id);
} else {
id->id = type_id;
(*nr)--;
}
}
}

2
tools/testing/selftests/bpf/progs/bprm_opts.c
View File

@ -4,7 +4,7 @@
* Copyright 2020 Google LLC.
*/
#include "vmlinux.h"
#include <linux/bpf.h>
#include <errno.h>
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>

2
tools/testing/selftests/net/fib_nexthops.sh
View File

@ -869,7 +869,7 @@ ipv6_torture()
pid3=$!
ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
pid4=$!
ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
ip netns exec me mausezahn -6 veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
pid5=$!
sleep 300

71
tools/testing/selftests/net/pmtu.sh
View File

@ -162,7 +162,15 @@
# - list_flush_ipv6_exception
# Using the same topology as in pmtu_ipv6, create exceptions, and check
# they are shown when listing exception caches, gone after flushing them
#
# - pmtu_ipv4_route_change
# Use the same topology as in pmtu_ipv4, but issue a route replacement
# command and delete the corresponding device afterward. This tests for
# proper cleanup of the PMTU exceptions by the route replacement path.
# Device unregistration should complete successfully
#
# - pmtu_ipv6_route_change
# Same as above but with IPv6
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
@ -224,7 +232,9 @@ tests="
cleanup_ipv4_exception ipv4: cleanup of cached exceptions 1
cleanup_ipv6_exception ipv6: cleanup of cached exceptions 1
list_flush_ipv4_exception ipv4: list and flush cached exceptions 1
list_flush_ipv6_exception ipv6: list and flush cached exceptions 1"
list_flush_ipv6_exception ipv6: list and flush cached exceptions 1
pmtu_ipv4_route_change ipv4: PMTU exception w/route replace 1
pmtu_ipv6_route_change ipv6: PMTU exception w/route replace 1"
NS_A="ns-A"
NS_B="ns-B"
@ -1782,6 +1792,63 @@ test_list_flush_ipv6_exception() {
return ${fail}
}
test_pmtu_ipvX_route_change() {
family=${1}
setup namespaces routing || return 2
trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \
"${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \
"${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \
"${ns_r2}" veth_R2-B "${ns_b}" veth_B-R2
if [ ${family} -eq 4 ]; then
ping=ping
dst1="${prefix4}.${b_r1}.1"
dst2="${prefix4}.${b_r2}.1"
gw="${prefix4}.${a_r1}.2"
else
ping=${ping6}
dst1="${prefix6}:${b_r1}::1"
dst2="${prefix6}:${b_r2}::1"
gw="${prefix6}:${a_r1}::2"
fi
# Set up initial MTU values
mtu "${ns_a}" veth_A-R1 2000
mtu "${ns_r1}" veth_R1-A 2000
mtu "${ns_r1}" veth_R1-B 1400
mtu "${ns_b}" veth_B-R1 1400
mtu "${ns_a}" veth_A-R2 2000
mtu "${ns_r2}" veth_R2-A 2000
mtu "${ns_r2}" veth_R2-B 1500
mtu "${ns_b}" veth_B-R2 1500
# Create route exceptions
run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst1}
run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst2}
# Check that exceptions have been created with the correct PMTU
pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1
pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1
# Replace the route from A to R1
run_cmd ${ns_a} ip route change default via ${gw}
# Delete the device in A
run_cmd ${ns_a} ip link del "veth_A-R1"
}
test_pmtu_ipv4_route_change() {
test_pmtu_ipvX_route_change 4
}
test_pmtu_ipv6_route_change() {
test_pmtu_ipvX_route_change 6
}
usage() {
echo
echo "$0 [OPTIONS] [TEST]..."

34
tools/testing/selftests/net/udpgro.sh
View File

@ -5,6 +5,14 @@
readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
# set global exit status, but never reset nonzero one.
check_err()
{
if [ $ret -eq 0 ]; then
ret=$1
fi
}
cleanup() {
local -r jobs="$(jobs -p)"
local -r ns="$(ip netns list|grep $PEER_NS)"
@ -44,7 +52,9 @@ run_one() {
# Hack: let bg programs complete the startup
sleep 0.1
./udpgso_bench_tx ${tx_args}
ret=$?
wait $(jobs -p)
return $ret
}
run_test() {
@ -87,8 +97,10 @@ run_one_nat() {
sleep 0.1
./udpgso_bench_tx ${tx_args}
ret=$?
kill -INT $pid
wait $(jobs -p)
return $ret
}
run_one_2sock() {
@ -110,7 +122,9 @@ run_one_2sock() {
sleep 0.1
# first UDP GSO socket should be closed at this point
./udpgso_bench_tx ${tx_args}
ret=$?
wait $(jobs -p)
return $ret
}
run_nat_test() {
@ -131,36 +145,54 @@ run_all() {
local -r core_args="-l 4"
local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
ret=0
echo "ipv4"
run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
check_err $?
# explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1)
# when GRO does not take place
run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
check_err $?
# the GSO packets are aggregated because:
# * veth schedule napi after each xmit
# * segmentation happens in BH context, veth napi poll is delayed after
# the transmission of the last segment
run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
check_err $?
run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
check_err $?
run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
check_err $?
run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500"
check_err $?
run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472"
check_err $?
run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
check_err $?
echo "ipv6"
run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400"
check_err $?
run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1"
check_err $?
run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520"
check_err $?
run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452"
check_err $?
run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520"
check_err $?
run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500"
check_err $?
run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452"
check_err $?
run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452"
check_err $?
return $ret
}
if [ ! -f ../bpf/xdp_dummy.o ]; then
@ -180,3 +212,5 @@ elif [[ $1 == "__subprocess_2sock" ]]; then
shift
run_one_2sock $@
fi
exit $?

3
tools/testing/selftests/netfilter/Makefile
View File

@ -4,7 +4,8 @@
TEST_PROGS := nft_trans_stress.sh nft_nat.sh bridge_brouter.sh \
conntrack_icmp_related.sh nft_flowtable.sh ipvs.sh \
nft_concat_range.sh nft_conntrack_helper.sh \
nft_queue.sh nft_meta.sh
nft_queue.sh nft_meta.sh \
ipip-conntrack-mtu.sh
LDLIBS = -lmnl
TEST_GEN_FILES = nf-queue

206
tools/testing/selftests/netfilter/ipip-conntrack-mtu.sh Executable file
View File

@ -0,0 +1,206 @@
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
# Conntrack needs to reassemble fragments in order to have complete
# packets for rule matching. Reassembly can lead to packet loss.
# Consider the following setup:
# +--------+ +---------+ +--------+
# |Router A|-------|Wanrouter|-------|Router B|
# | |.IPIP..| |..IPIP.| |
# +--------+ +---------+ +--------+
# / mtu 1400 \
# / \
#+--------+ +--------+
#|Client A| |Client B|
#| | | |
#+--------+ +--------+
# Router A and Router B use IPIP tunnel interfaces to tunnel traffic
# between Client A and Client B over WAN. Wanrouter has MTU 1400 set
# on its interfaces.
rnd=$(mktemp -u XXXXXXXX)
rx=$(mktemp)
r_a="ns-ra-$rnd"
r_b="ns-rb-$rnd"
r_w="ns-rw-$rnd"
c_a="ns-ca-$rnd"
c_b="ns-cb-$rnd"
checktool (){
if ! $1 > /dev/null 2>&1; then
echo "SKIP: Could not $2"
exit $ksft_skip
fi
}
checktool "iptables --version" "run test without iptables"
checktool "ip -Version" "run test without ip tool"
checktool "which nc" "run test without nc (netcat)"
checktool "ip netns add ${r_a}" "create net namespace"
for n in ${r_b} ${r_w} ${c_a} ${c_b};do
ip netns add ${n}
done
cleanup() {
for n in ${r_a} ${r_b} ${r_w} ${c_a} ${c_b};do
ip netns del ${n}
done
rm -f ${rx}
}
trap cleanup EXIT
test_path() {
msg="$1"
ip netns exec ${c_b} nc -n -w 3 -q 3 -u -l -p 5000 > ${rx} < /dev/null &
sleep 1
for i in 1 2 3; do
head -c1400 /dev/zero | tr "\000" "a" | ip netns exec ${c_a} nc -n -w 1 -u 192.168.20.2 5000
done
wait
bytes=$(wc -c < ${rx})
if [ $bytes -eq 1400 ];then
echo "OK: PMTU $msg connection tracking"
else
echo "FAIL: PMTU $msg connection tracking: got $bytes, expected 1400"
exit 1
fi
}
# Detailed setup for Router A
# ---------------------------
# Interfaces:
# eth0: 10.2.2.1/24
# eth1: 192.168.10.1/24
# ipip0: No IP address, local 10.2.2.1 remote 10.4.4.1
# Routes:
# 192.168.20.0/24 dev ipip0 (192.168.20.0/24 is subnet of Client B)
# 10.4.4.1 via 10.2.2.254 (Router B via Wanrouter)
# No iptables rules at all.
ip link add veth0 netns ${r_a} type veth peer name veth0 netns ${r_w}
ip link add veth1 netns ${r_a} type veth peer name veth0 netns ${c_a}
l_addr="10.2.2.1"
r_addr="10.4.4.1"
ip netns exec ${r_a} ip link add ipip0 type ipip local ${l_addr} remote ${r_addr} mode ipip || exit $ksft_skip
for dev in lo veth0 veth1 ipip0; do
ip -net ${r_a} link set $dev up
done
ip -net ${r_a} addr add 10.2.2.1/24 dev veth0
ip -net ${r_a} addr add 192.168.10.1/24 dev veth1
ip -net ${r_a} route add 192.168.20.0/24 dev ipip0
ip -net ${r_a} route add 10.4.4.0/24 via 10.2.2.254
ip netns exec ${r_a} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
# Detailed setup for Router B
# ---------------------------
# Interfaces:
# eth0: 10.4.4.1/24
# eth1: 192.168.20.1/24
# ipip0: No IP address, local 10.4.4.1 remote 10.2.2.1
# Routes:
# 192.168.10.0/24 dev ipip0 (192.168.10.0/24 is subnet of Client A)
# 10.2.2.1 via 10.4.4.254 (Router A via Wanrouter)
# No iptables rules at all.
ip link add veth0 netns ${r_b} type veth peer name veth1 netns ${r_w}
ip link add veth1 netns ${r_b} type veth peer name veth0 netns ${c_b}
l_addr="10.4.4.1"
r_addr="10.2.2.1"
ip netns exec ${r_b} ip link add ipip0 type ipip local ${l_addr} remote ${r_addr} mode ipip || exit $ksft_skip
for dev in lo veth0 veth1 ipip0; do
ip -net ${r_b} link set $dev up
done
ip -net ${r_b} addr add 10.4.4.1/24 dev veth0
ip -net ${r_b} addr add 192.168.20.1/24 dev veth1
ip -net ${r_b} route add 192.168.10.0/24 dev ipip0
ip -net ${r_b} route add 10.2.2.0/24 via 10.4.4.254
ip netns exec ${r_b} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
# Client A
ip -net ${c_a} addr add 192.168.10.2/24 dev veth0
ip -net ${c_a} link set dev lo up
ip -net ${c_a} link set dev veth0 up
ip -net ${c_a} route add default via 192.168.10.1
# Client A
ip -net ${c_b} addr add 192.168.20.2/24 dev veth0
ip -net ${c_b} link set dev veth0 up
ip -net ${c_b} link set dev lo up
ip -net ${c_b} route add default via 192.168.20.1
# Wan
ip -net ${r_w} addr add 10.2.2.254/24 dev veth0
ip -net ${r_w} addr add 10.4.4.254/24 dev veth1
ip -net ${r_w} link set dev lo up
ip -net ${r_w} link set dev veth0 up mtu 1400
ip -net ${r_w} link set dev veth1 up mtu 1400
ip -net ${r_a} link set dev veth0 mtu 1400
ip -net ${r_b} link set dev veth0 mtu 1400
ip netns exec ${r_w} sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
# Path MTU discovery
# ------------------
# Running tracepath from Client A to Client B shows PMTU discovery is working
# as expected:
#
# clienta:~# tracepath 192.168.20.2
# 1?: [LOCALHOST] pmtu 1500
# 1: 192.168.10.1 0.867ms
# 1: 192.168.10.1 0.302ms
# 2: 192.168.10.1 0.312ms pmtu 1480
# 2: no reply
# 3: 192.168.10.1 0.510ms pmtu 1380
# 3: 192.168.20.2 2.320ms reached
# Resume: pmtu 1380 hops 3 back 3
# ip netns exec ${c_a} traceroute --mtu 192.168.20.2
# Router A has learned PMTU (1400) to Router B from Wanrouter.
# Client A has learned PMTU (1400 - IPIP overhead = 1380) to Client B
# from Router A.
#Send large UDP packet
#---------------------
#Now we send a 1400 bytes UDP packet from Client A to Client B:
# clienta:~# head -c1400 /dev/zero | tr "\000" "a" | nc -u 192.168.20.2 5000
test_path "without"
# The IPv4 stack on Client A already knows the PMTU to Client B, so the
# UDP packet is sent as two fragments (1380 + 20). Router A forwards the
# fragments between eth1 and ipip0. The fragments fit into the tunnel and
# reach their destination.
#When sending the large UDP packet again, Router A now reassembles the
#fragments before routing the packet over ipip0. The resulting IPIP
#packet is too big (1400) for the tunnel PMTU (1380) to Router B, it is
#dropped on Router A before sending.
ip netns exec ${r_a} iptables -A FORWARD -m conntrack --ctstate NEW
test_path "with"