94173 Commits

Author SHA1 Message Date
Aya Levin
b3c2ed21c0 net/mlx5e: Fix VXLAN configuration restore after function reload
When detaching netdev, remove vxlan port configuration using
udp_tunnel_drop_rx_info. During function reload, configuration will be
restored using udp_tunnel_get_rx_info. This ensures sync between
firmware and driver. Use udp_tunnel_get_rx_info even if its physical
interface is down.

Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09 19:27:06 -07:00
Vlad Buslov
c1aea9e176 net/mlx5e: Fix usage of rcu-protected pointer
In mlx5e_configure_flower() flow pointer is protected by rcu read lock.
However, after cited commit the pointer is being used outside of rcu read
block. Extend the block to protect all pointer accesses.

Fixes: 553f9328385d ("net/mlx5e: Support tc block sharing for representors")
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09 19:27:05 -07:00
Vlad Buslov
2fb15e72c0 net/mxl5e: Verify that rpriv is not NULL
In helper function is_flow_rule_duplicate_allowed() verify that rpviv
pointer is not NULL before dereferencing it. This can happen when device is
in NIC mode and leads to following crash:

[90444.046419] BUG: kernel NULL pointer dereference, address: 0000000000000000
[90444.048149] #PF: supervisor read access in kernel mode
[90444.049781] #PF: error_code(0x0000) - not-present page
[90444.051386] PGD 80000003d35a4067 P4D 80000003d35a4067 PUD 3d35a3067 PMD 0
[90444.053051] Oops: 0000 [#1] SMP PTI
[90444.054683] CPU: 16 PID: 31736 Comm: tc Not tainted 5.8.0-rc1+ #1157
[90444.056340] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017
[90444.058079] RIP: 0010:mlx5e_configure_flower+0x3aa/0x9b0 [mlx5_core]
[90444.059753] Code: 24 50 49 8b 95 08 02 00 00 48 b8 00 08 00 00 04 00 00 00 48 21 c2 48 39 c2 74 0a 41 f6 85 0d 02 00 00 20 74 16 48 8b 44 24 20 <48> 8b 00 66 83 78 20 ff 74 07 4d 89 aa e0 00 00 00 48 83 7d 28 00
[90444.063232] RSP: 0018:ffffabe9c61ff768 EFLAGS: 00010246
[90444.065014] RAX: 0000000000000000 RBX: ffff9b13c4c91e80 RCX: 00000000000093fa
[90444.066784] RDX: 0000000400000800 RSI: 0000000000000000 RDI: 000000000002d5e0
[90444.068533] RBP: ffff9b174d308468 R08: 0000000000000000 R09: ffff9b17d63003f0
[90444.070285] R10: ffff9b17ea288600 R11: 0000000000000000 R12: ffffabe9c61ff878
[90444.072032] R13: ffff9b174d300000 R14: ffffabe9c61ffbb8 R15: ffff9b174d300880
[90444.073760] FS:  00007f3c23775480(0000) GS:ffff9b13efc80000(0000) knlGS:0000000000000000
[90444.075492] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[90444.077266] CR2: 0000000000000000 CR3: 00000003e2a60002 CR4: 00000000001606e0
[90444.079024] Call Trace:
[90444.080753]  tc_setup_cb_add+0xca/0x1e0
[90444.082415]  fl_hw_replace_filter+0x15f/0x1f0 [cls_flower]
[90444.084119]  fl_change+0xa59/0x13dc [cls_flower]
[90444.085772]  ? wait_for_completion+0xa8/0xf0
[90444.087364]  tc_new_tfilter+0x3f5/0xa60
[90444.088960]  rtnetlink_rcv_msg+0xeb/0x360
[90444.090514]  ? __d_lookup_done+0x76/0xe0
[90444.092034]  ? proc_alloc_inode+0x16/0x70
[90444.093560]  ? prep_new_page+0x8c/0xf0
[90444.095048]  ? _cond_resched+0x15/0x30
[90444.096483]  ? rtnl_calcit.isra.0+0x110/0x110
[90444.097907]  netlink_rcv_skb+0x49/0x110
[90444.099289]  netlink_unicast+0x191/0x230
[90444.100629]  netlink_sendmsg+0x243/0x480
[90444.101984]  sock_sendmsg+0x5e/0x60
[90444.103305]  ____sys_sendmsg+0x1f3/0x260
[90444.104597]  ? copy_msghdr_from_user+0x5c/0x90
[90444.105916]  ? __mod_lruvec_state+0x3c/0xe0
[90444.107210]  ___sys_sendmsg+0x81/0xc0
[90444.108484]  ? do_filp_open+0xa5/0x100
[90444.109732]  ? handle_mm_fault+0x117b/0x1e00
[90444.110970]  ? __check_object_size+0x46/0x147
[90444.112205]  ? __check_object_size+0x136/0x147
[90444.113402]  __sys_sendmsg+0x59/0xa0
[90444.114587]  do_syscall_64+0x4d/0x90
[90444.115782]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[90444.116953] RIP: 0033:0x7f3c2393b7b8
[90444.118101] Code: Bad RIP value.
[90444.119240] RSP: 002b:00007ffc6ad8e6c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[90444.120408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3c2393b7b8
[90444.121583] RDX: 0000000000000000 RSI: 00007ffc6ad8e740 RDI: 0000000000000003
[90444.122750] RBP: 000000005eea0c3a R08: 0000000000000001 R09: 00007ffc6ad8e68c
[90444.123928] R10: 0000000000404fa8 R11: 0000000000000246 R12: 0000000000000001
[90444.125073] R13: 0000000000000000 R14: 00007ffc6ad92a00 R15: 00000000004866a0
[90444.126221] Modules linked in: act_skbedit act_tunnel_key act_mirred bonding vxlan ip6_udp_tunnel udp_tunnel nfnetlink act_gact cls_flower sch_ingress openvswitch nsh nf_conncount nfsv3 nfs_acl nfs lockd grace fscache tun bridge stp llc sunrpc rdma_ucm rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core intel_r
apl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mlxfw kvm act_ct nf_flow_table nf_nat nf_conntrack irqbypass crct10dif_pclmul nf_defrag_ipv6 igb ipmi_ssif libcrc32c crc32_pclmul crc32c_intel ipmi_si nf_defrag_ipv4 ptp ghash_clmulni_intel mei_me ses iTCO_wdt i2c_i801 pps_core
ioatdma iTCO_vendor_support joydev mei enclosure intel_cstate i2c_smbus wmi dca ipmi_devintf intel_uncore lpc_ich ipmi_msghandler pcspkr acpi_pad acpi_power_meter ast i2c_algo_bit drm_vram_helper drm_kms_helper drm_ttm_helper ttm drm mpt3sas raid_class scsi_transport_sas
[90444.136253] CR2: 0000000000000000
[90444.137621] ---[ end trace 924af62aa2b151bd ]---

Fixes: 553f9328385d ("net/mlx5e: Support tc block sharing for representors")
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09 19:27:05 -07:00
Vu Pham
01f3d5db4a net/mlx5: E-Switch, Fix vlan or qos setting in legacy mode
Refactoring eswitch ingress acl codes accidentally inserts extra
memset zero that removes vlan and/or qos setting in legacy mode.

Fixes: 07bab9502641 ("net/mlx5: E-Switch, Refactor eswitch ingress acl codes")
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09 19:27:05 -07:00
Eran Ben Elisha
47afbdd2fa net/mlx5: Fix eeprom support for SFP module
Fix eeprom SFP query support by setting i2c_addr, offset and page number
correctly. Unlike QSFP modules, SFP eeprom params are as follow:
- i2c_addr is 0x50 for offset 0 - 255 and 0x51 for offset 256 - 511.
- Page number is always zero.
- Page offset is always relative to zero.

As part of eeprom query, query the module ID (SFP / QSFP*) via helper
function to set the params accordingly.

In addition, change mlx5_qsfp_eeprom_page() input type to be u16 to avoid
unnecessary casting.

Fixes: a708fb7b1f8d ("net/mlx5e: ethtool, Add support for EEPROM high pages query")
Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09 19:27:04 -07:00
Danielle Ratson
82901ad169 devlink: Move input checks from driver to devlink
Currently, all the input checks are done in driver.

After adding the split capability to devlink port, move the checks to
devlink.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:15:30 -07:00
Danielle Ratson
a0f49b5486 devlink: Add a new devlink port split ability attribute and pass to netlink
Add a new attribute that indicates the split ability of devlink port.

Drivers are expected to set it via devlink_port_attrs_set(), before
registering the port.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:15:30 -07:00
Danielle Ratson
1b604efb6c mlxsw: Set port split ability attribute in driver
Currently, port attributes like flavour, port number and whether the port
was split are set when initializing a port.

Set the split ability of the port as well, based on port_mapping->width
field and split attribute of devlink port in spectrum, so that it could be
easily passed to devlink in the next patch.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:15:29 -07:00
Danielle Ratson
a21cf0a833 devlink: Add a new devlink port lanes attribute and pass to netlink
Add a new devlink port attribute that indicates the port's number of lanes.

Drivers are expected to set it via devlink_port_attrs_set(), before
registering the port.

The attribute is not passed to user space in case the number of lanes is
invalid (0).

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:15:29 -07:00
Danielle Ratson
622d3e9201 mlxsw: Set number of port lanes attribute in driver
Currently, port attributes like flavour, port number and whether the
port was split are set when initializing a port.

Set the number of lanes of the port as well so that it could be easily
passed to devlink in the next patch.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:15:29 -07:00
Danielle Ratson
71ad8d55f8 devlink: Replace devlink_port_attrs_set parameters with a struct
Currently, devlink_port_attrs_set accepts a long list of parameters,
that most of them are devlink port's attributes.

Use the devlink_port_attrs struct to replace the relevant parameters.

Signed-off-by: Danielle Ratson <danieller@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:15:29 -07:00
kernel test robot
faea30ed71 net: phy: mscc: fix ptr_ret.cocci warnings
drivers/net/phy/mscc/mscc_ptp.c:1496:1-3: WARNING: PTR_ERR_OR_ZERO can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Fixes: 7d272e63e097 ("net: phy: mscc: timestamping and PHC support")
CC: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: kernel test robot <lkp@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:09:51 -07:00
Colin Ian King
e3cbdaf146 net: systemport: fix double shift of a vlan_tci by VLAN_PRIO_SHIFT
Currently the u16 skb->vlan_tci is being right  shifted twice by
VLAN_PRIO_SHIFT, once in the macro skb_vlan_tag_get_pri and explicitly
by VLAN_PRIO_SHIFT afterwards. The combined shift amount is larger than
the u16 so the end result is always zero.  Remove the second explicit
shift as this is extraneous.

Fixes: 6e9fdb60d362 ("net: systemport: Add support for VLAN transmit acceleration")
Addresses-Coverity: ("Operands don't affect result")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 13:06:56 -07:00
Xu Wang
5ca670e58d net: enetc: use eth_broadcast_addr() to assign broadcast
This patch is to use eth_broadcast_addr() to assign broadcast address
insetad of memset().

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 12:33:36 -07:00
Sudarsana Reddy Kalluru
13cf8aab74 qed: Populate nvm-file attributes while reading nvm config partition.
NVM config file address will be modified when the MBI image is upgraded.
Driver would return stale config values if user reads the nvm-config
(via ethtool -d) in this state. The fix is to re-populate nvm attribute
info while reading the nvm config values/partition.

Changes from previous version:
-------------------------------
v3: Corrected the formatting in 'Fixes' tag.
v2: Added 'Fixes' tag.

Fixes: 1ac4329a1cff ("qed: Add configuration information to register dump and debug data")
Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-09 12:30:25 -07:00
Jarod Wilson
f548a47626 bonding: don't need RTNL for ipsec helpers
The bond_ipsec_* helpers don't need RTNL, and can potentially get called
without it being held, so switch from rtnl_dereference() to
rcu_dereference() to access bond struct data.

Lightly tested with xfrm bonding, no problems found, should address the
syzkaller bug referenced below.

Reported-by: syzbot+582c98032903dcc04816@syzkaller.appspotmail.com
CC: Huy Nguyen <huyn@mellanox.com>
CC: Saeed Mahameed <saeedm@mellanox.com>
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Jakub Kicinski <kuba@kernel.org>
CC: Steffen Klassert <steffen.klassert@secunet.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: netdev@vger.kernel.org
CC: intel-wired-lan@lists.osuosl.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 16:09:07 -07:00
Rahul Lakkireddy
76c4d85c92 cxgb4: fix all-mask IP address comparison
Convert all-mask IP address to Big Endian, instead, for comparison.

Fixes: f286dd8eaad5 ("cxgb4: use correct type for all-mask IP address comparison")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:43:00 -07:00
Jarod Wilson
5cd24cbe7d bonding: deal with xfrm state in all modes and add more error-checking
It's possible that device removal happens when the bond is in non-AB mode,
and addition happens in AB mode, so bond_ipsec_del_sa() never gets called,
which leaves security associations in an odd state if bond_ipsec_add_sa()
then gets called after switching the bond into AB. Just call add and
delete universally for all modes to keep things consistent.

However, it's also possible that this code gets called when the system is
shutting down, and the xfrm subsystem has already been disconnected from
the bond device, so we need to do some error-checking and bail, lest we
hit a null ptr deref.

Fixes: a3b658cfb664 ("bonding: allow xfrm offload setup post-module-load")
CC: Huy Nguyen <huyn@mellanox.com>
CC: Saeed Mahameed <saeedm@mellanox.com>
CC: Jay Vosburgh <j.vosburgh@gmail.com>
CC: Veaceslav Falico <vfalico@gmail.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
CC: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
CC: Jakub Kicinski <kuba@kernel.org>
CC: Steffen Klassert <steffen.klassert@secunet.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: netdev@vger.kernel.org
CC: intel-wired-lan@lists.osuosl.org
Signed-off-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:37:14 -07:00
Linus Walleij
a20fafb92b net: dsa: rtl8366rb: Support the CPU DSA tag
This activates the support to use the CPU tag to properly
direct ingress traffic to the right port.

Bit 15 in register RTL8368RB_CPU_CTRL_REG can be set to
1 to disable the insertion of the CPU tag which is what
the code currently does. The bit 15 define calls this
setting RTL8368RB_CPU_INSTAG which is confusing since the
inverse meaning is implied: programmers may think that
setting this bit to 1 will *enable* inserting the tag
rather than disabling it, so rename this setting in
bit 15 to RTL8368RB_CPU_NO_TAG which is more to the
point.

After this e.g. ping works out-of-the-box with the
RTL8366RB.

Cc: DENG Qingfang <dqfext@gmail.com>
Cc: Mauri Sandberg <sandberg@mailfence.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:36:19 -07:00
Meir Lichtinger
12fdafb817 net/mlx5: Added support for 100Gbps per lane link modes
This patch exposes new link modes using 100Gbps per lane, including 100G,
200G and 400G modes.

Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
Reviewed-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:30:42 -07:00
Meir Lichtinger
065e0d42a0 ethtool: Add support for 100Gbps per lane link modes
Define 100G, 200G and 400G link modes using 100Gbps per lane

LR, ER and FR are defined as a single link mode because they are
using same technology and by design are fully interoperable.
EEPROM content indicates if the module is LR, ER, or FR, and the
user space ethtool decoder is planned to support decoding these
modes in the EEPROM.

Signed-off-by: Meir Lichtinger <meirl@mellanox.com>
CC: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Aya Levin <ayal@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:30:42 -07:00
Edwin Peer
1da63ddd0e bnxt_en: allow firmware to disable VLAN offloads
Bare-metal use cases require giving firmware and the embedded
application processor control over VLAN offloads. The driver should
not attempt to override or utilize this feature in such scenarios
since it will not work as expected.

Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:14 -07:00
Edwin Peer
a196e96bb6 bnxt_en: clean up VLAN feature bit handling
The hardware VLAN offload feature on our NIC does not have separate
knobs for handling customer and service tags on RX. Either offloading
of both must be enabled or both must be disabled. Introduce definitions
for the combined feature set in order to clean up the code and make
this constraint more clear. Technically these features can be separately
enabled on TX, however, since the default is to turn both on, the
combined TX feature set is also introduced for code consistency.

Signed-off-by: Edwin Peer <edwin.peer@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:14 -07:00
Michael Chan
bd3191b5d8 bnxt_en: Implement ethtool -X to set indirection table.
With the new infrastructure in place, we can now support the setting of
the indirection table from ethtool.

When changing channels, in a rare case that firmware cannot reserve the
rings that were promised, we will still try to keep the RSS map and only
revert to default when absolutely necessary.

v4: Revert RSS map to default during ring change only when absolutely
    necessary.

v3: Add warning messages when firmware cannot reserve the requested RX
    rings, and when the RSS table entries have to change to default.

v2: When changing channels, if the RSS table size changes and RSS map
    is non-default, return error.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:13 -07:00
Michael Chan
adc38ac667 bnxt_en: Return correct RSS indirection table entries to ethtool -x.
Now that we have the logical indirection table, we can return these
proper logical indices directly to ethtool -x instead of the physical
IDs.

Reported-by: Jakub Kicinski <kicinski@fb.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:13 -07:00
Michael Chan
f33a305d09 bnxt_en: Fill HW RSS table from the RSS logical indirection table.
Now that we have the logical table, we can fill the HW RSS table
using the logical table's entries and converting them to the HW
specific format.  Re-initialize the logical table to standard
distribution if the number of RX rings changes during ring reservation.

v4: Use bnxt_get_rxfh_indir_size() to get the RSS table size.

v2: Use ALIGN() to roundup the RSS table size.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:13 -07:00
Michael Chan
f9f6a3fbb5 bnxt_en: Add helper function to return the number of RSS contexts.
On some chips, this varies based on the number of RX rings.  Add this
helper function and refactor the existing code to use it.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:13 -07:00
Michael Chan
1667cbf6a4 bnxt_en: Add logical RSS indirection table structure.
The driver currently does not keep track of the logical RSS indirection
table.  The hardware RSS table is set up with standard default ring
distribution when initializing the chip.  This makes it difficult to
support user sepcified indirection table entries.  As a first step, add
the logical table in the main bnxt structure and allocate it according
to chip specific table size.  Add a function that sets up default
RSS distribution based on the number of RX rings.

v4: Use bnxt_get_rxfh_indir_size() for the current RSS table size.

v2: Use kmalloc_array() since we init. all entries afterwards.
    Use ALIGN() to roundup the RSS table size.
    Use ethtool_rxfh_indir_default() to init. the default entries.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:13 -07:00
Michael Chan
b73c1d08a0 bnxt_en: Fix up bnxt_get_rxfh_indir_size().
Fix up bnxt_get_rxfh_indir_size() to return the proper current RSS
table size for P5 chips.  Change it to non-static so that bnxt.c
can use it to get the table size.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:13 -07:00
Michael Chan
34370d2435 bnxt_en: Set up the chip specific RSS table size.
Currently, we allocate one page for the hardware DMA RSS indirection
table.  While the size is currently big enough for all chips, future
chip variations may support bigger sizes, so it is better to calculate
and store the chip specific size and allocate accordingly.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 15:21:13 -07:00
Florian Fainelli
17809516a0 net: phy: Uninline PHY ethtool statistics operations
Now that we have moved the PHY ethtool statistics to be dynamically
registered, we no longer need to inline those for ethtool. This used to
be done to avoid cross symbol referencing and allow ethtool to be
decoupled from PHYLIB entirely.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 12:39:05 -07:00
Florian Fainelli
bd36ed1c93 net: phy: Define PHY statistics ethtool_phy_ops
Extend ethtool_phy_ops to include the 3 function pointers necessary for
implementing PHY statistics. In a subsequent change we will uninline
those functions.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 12:39:05 -07:00
Dmitry Bogdanov
a42e6aee7f net: atlantic: fix ip dst and ipv6 address filters
This patch fixes ip dst and ipv6 address filters.
There were 2 mistakes in the code, which led to the issue:
* invalid register was used for ipv4 dst address;
* incorrect write order of dwords for ipv6 addresses.

Fixes: 23e7a718a49b ("net: aquantia: add rx-flow filter definitions")
Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 12:29:33 -07:00
Alexander A. Klimov
5d75c04306 Replace HTTP links with HTTPS ones: ATMEL MACB ETHERNET DRIVER
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 10:35:09 -07:00
Florian Fainelli
93165ecbe1 net: dsa: loop: Print when registration is successful
We have a number of error conditions that can lead to the driver not
probing successfully, move the print when we are sure
dsa_register_switch() has suceeded. This avoids repeated prints in case
of probe deferral for instance.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-08 10:14:00 -07:00
Chris Healy
8cb601f158 net: sfp: add error checking with sfp_irq_name
Add error checking with sfp_irq_name before use.

Signed-off-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:51:08 -07:00
Shannon Nelson
086c18f245 ionic: centralize queue reset code
The queue reset pattern is used in a couple different places,
only slightly different from each other, and could cause
issues if one gets changed and the other didn't.  This puts
them together so that only one version is needed, yet each
can have slighty different effects by passing in a pointer
to a work function to do whatever configuration twiddling is
needed in the middle of the reset.

This specifically addresses issues seen where under loops
of changing ring size or queue count parameters we could
occasionally bump into the netdev watchdog.

v2: added more commit message commentary

Fixes: 4d03e00a2140 ("ionic: Add initial ethtool support")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:50:31 -07:00
Alexander A. Klimov
1fd52137d3 Replace HTTP links with HTTPS ones: GRETH 10/100/1G Ethernet MAC device driver
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
          If both the HTTP and HTTPS versions
          return 200 OK and serve the same content:
            Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@al2klimov.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:44:27 -07:00
Alexander Lobakin
da3287111a net: qed: fix buffer overflow on ethtool -d
When generating debug dump, driver firstly collects all data in binary
form, and then performs per-feature formatting to human-readable if it
is supported.

For ethtool -d, this is roughly incorrect for two reasons. First of all,
drivers should always provide only original raw dumps to Ethtool without
any changes.
The second, and more critical, is that Ethtool's output buffer size is
strictly determined by ethtool_ops::get_regs_len(), and all data *must*
fit in it. The current version of driver always returns the size of raw
data, but the size of the formatted buffer exceeds it in most cases.
This leads to out-of-bound writes and memory corruption.

Address both issues by adding an option to return original, non-formatted
debug data, and using it for Ethtool case.

v2:
 - Expand commit message to make it more clear;
 - No functional changes.

Fixes: c965db444629 ("qed: Add support for debug data collection")
Signed-off-by: Alexander Lobakin <alobakin@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:42:31 -07:00
Colin Ian King
2291bde8c0 bnx2x: fix spelling mistake "occurd" -> "occurred"
There are spelling mistakes in various literal strings. Fix these.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:41:54 -07:00
Florian Fainelli
55d8f053ce net: phy: Register ethtool PHY operations
Utilize ethtool_set_ethtool_phy_ops to register a suitable set of PHY
ethtool operations in a dynamic fashion such that ethtool will no longer
directy reference PHY library symbols.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:41:04 -07:00
Bartosz Golaszewski
1814cff267 net: phy: add a Kconfig option for mdio_devres
If phylib is built as a module and CONFIG_MDIO_DEVICE is 'y', the
mdio_device and mdio_bus code will be in the phylib module, not in the
kernel image. Meanwhile we build mdio_devres depending on the
CONFIG_MDIO_DEVICE symbol, so if it's 'y', it will go into the kernel
and we'll hit the following linker error:

   ld: drivers/net/phy/mdio_devres.o: in function `devm_mdiobus_alloc_size':
>> drivers/net/phy/mdio_devres.c:38: undefined reference to `mdiobus_alloc_size'
   ld: drivers/net/phy/mdio_devres.o: in function `devm_mdiobus_free':
>> drivers/net/phy/mdio_devres.c:16: undefined reference to `mdiobus_free'
   ld: drivers/net/phy/mdio_devres.o: in function `__devm_mdiobus_register':
>> drivers/net/phy/mdio_devres.c:87: undefined reference to `__mdiobus_register'
   ld: drivers/net/phy/mdio_devres.o: in function `devm_mdiobus_unregister':
>> drivers/net/phy/mdio_devres.c:53: undefined reference to `mdiobus_unregister'
   ld: drivers/net/phy/mdio_devres.o: in function `devm_of_mdiobus_register':
>> drivers/net/phy/mdio_devres.c:120: undefined reference to `of_mdiobus_register'

Add a hidden Kconfig option for MDIO_DEVRES which will be currently
selected by CONFIG_PHYLIB as there are no non-phylib users of these
helpers.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:37:02 -07:00
Sebastian Andrzej Siewior
f0b594dfa4 net/mlx5e: Do not include rwlock.h directly
rwlock.h should not be included directly. Instead linux/splinlock.h
should be included. Including it directly will break the RT build.

Fixes: 549c243e4e010 ("net/mlx5e: Extract neigh-specific code from en_rep.c to rep/neigh.c")
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:28:51 -07:00
Tobias Waldekranz
7cdaa4cc4b net: ethernet: fec: prevent tx starvation under high rx load
In the ISR, we poll the event register for the queues in need of
service and then enter polled mode. After this point, the event
register will never be read again until we exit polled mode.

In a scenario where a UDP flow is routed back out through the same
interface, i.e. "router-on-a-stick" we'll typically only see an rx
queue event initially. Once we start to process the incoming flow
we'll be locked polled mode, but we'll never clean the tx rings since
that event is never caught.

Eventually the netdev watchdog will trip, causing all buffers to be
dropped and then the process starts over again.

Rework the NAPI poll to keep trying to consome the entire budget as
long as new events are coming in, making sure to service all rx/tx
queues, in priority order, on each pass.

Fixes: 4d494cdc92b3 ("net: fec: change data structure to support multiqueue")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Tested-by: Fugang Duan <fugang.duan@nxp.com>
Reviewed-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:25:05 -07:00
Tom Rix
28b18e4eb5 net: sky2: initialize return of gm_phy_read
clang static analysis flags this garbage return

drivers/net/ethernet/marvell/sky2.c:208:2: warning: Undefined or garbage value returned to caller [core.uninitialized.UndefReturn]
        return v;
        ^~~~~~~~

static inline u16 gm_phy_read( ...
{
	u16 v;
	__gm_phy_read(hw, port, reg, &v);
	return v;
}

__gm_phy_read can return without setting v.

So handle similar to skge.c's gm_phy_read, initialize v.

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:23:53 -07:00
Vaibhav Gupta
53fff2bfb3 smsc9420: use generic power management
Drivers should not use legacy power management as they have to manage power
states and related operations, for the device, themselves. This driver was
handling them with the help of PCI helper functions.

With generic PM, all essentials will be handled by the PCI core. Driver
needs to do only device-specific operations.

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:20:49 -07:00
Vaibhav Gupta
622594f2ad epic100: use generic power management
Drivers should not use legacy power management as they have to manage power
states and related operations, for the device, themselves.

With generic PM, all essentials will be handled by the PCI core. Driver
needs to do only device-specific operations.

Compile-tested only.

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 15:20:48 -07:00
Matteo Croce
4e48978cd2 mvpp2: fix pointer check
priv->page_pool is an array, so comparing against it will always return true.
Do a meaningful check by checking priv->page_pool[0] instead.
While at it, clear the page_pool pointers on deallocation, or when an
allocation error happens during init.

Reported-by: Colin Ian King <colin.king@canonical.com>
Fixes: c2d6fe6163de ("mvpp2: XDP TX support")
Signed-off-by: Matteo Croce <mcroce@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 13:03:21 -07:00
Wei Yongjun
847d97e013 sun/cassini: mark cas_resume() as __maybe_unused
In certain configurations without power management support, gcc report
the following warning:

drivers/net/ethernet/sun/cassini.c:5206:12: warning:
 'cas_resume' defined but not used [-Wunused-function]
 5206 | static int cas_resume(struct device *dev_d)
      |            ^~~~~~~~~~

Mark cas_resume() as __maybe_unused to make it clear.

Fixes: f193f4ebde3d ("sun/cassini: use generic power management")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 12:59:37 -07:00
AceLan Kao
f815dd5cf4 net: usb: qmi_wwan: add support for Quectel EG95 LTE modem
Add support for Quectel Wireless Solutions Co., Ltd. EG95 LTE modem

T:  Bus=01 Lev=01 Prnt=01 Port=02 Cnt=02 Dev#=  5 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2c7c ProdID=0195 Rev=03.18
S:  Manufacturer=Android
S:  Product=Android
C:  #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#=0x0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
I:  If#=0x1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none)
I:  If#=0x4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)

Signed-off-by: AceLan Kao <acelan.kao@canonical.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-07 12:58:03 -07:00