linux-2.6-microblaze.git
3 years agonet: x25: Fix handling of Restart Request and Restart Confirmation
Xie He [Wed, 9 Dec 2020 08:16:04 +0000 (00:16 -0800)]
net: x25: Fix handling of Restart Request and Restart Confirmation

1. When the x25 module gets loaded, layer 2 may already be running and
connected. In this case, although we are in X25_LINK_STATE_0, we still
need to handle the Restart Request received, rather than ignore it.

2. When we are in X25_LINK_STATE_2, we have already sent a Restart Request
and is waiting for the Restart Confirmation with t20timer. t20timer will
restart itself repeatedly forever so it will always be there, as long as we
are in State 2. So we don't need to check x25_t20timer_pending again.

Fixes: d023b2b9ccc2 ("net/x25: fix restart request/confirm handling")
Cc: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Acked-by: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mptcp-fixes'
David S. Miller [Thu, 10 Dec 2020 03:31:58 +0000 (19:31 -0800)]
Merge branch 'mptcp-fixes'

Paolo Abeni says:

====================
mptcp: a bunch of fixes

This series includes a few fixes following-up the
recent code refactor for the MPTCP RX and TX paths.

Boundling them together, since the fixes are somewhat
related.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: be careful on subflows shutdown
Paolo Abeni [Wed, 9 Dec 2020 11:03:31 +0000 (12:03 +0100)]
mptcp: be careful on subflows shutdown

When the workqueue disposes of the msk, the subflows can still
receive some data from the peer after __mptcp_close_ssk()
completes.

The above could trigger a race between the msk receive path and the
msk destruction. Acquiring the mptcp_data_lock() in __mptcp_destroy_sock()
will not save the day: the rx path could be reached even after msk
destruction completes.

Instead use the subflow 'disposable' flag to prevent entering
the msk receive path after __mptcp_close_ssk().

Fixes: e16163b6e2b7 ("mptcp: refactor shutdown and close")
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: plug subflow context memory leak
Paolo Abeni [Wed, 9 Dec 2020 11:03:30 +0000 (12:03 +0100)]
mptcp: plug subflow context memory leak

When a MPTCP listener socket is closed with unaccepted
children pending, the ULP release callback will be invoked,
but nobody will call into __mptcp_close_ssk() on the
corresponding subflow.

As a consequence, at ULP release time, the 'disposable' flag
will be cleared and the subflow context memory will be leaked.

This change addresses the issue always freeing the context if
the subflow is still in the accept queue at ULP release time.

Additionally, this fixes an incorrect code reference in the
related comment.

Note: this fix leverages the changes introduced by the previous
commit.

Fixes: e16163b6e2b7 ("mptcp: refactor shutdown and close")
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: link MPC subflow into msk only after accept
Paolo Abeni [Wed, 9 Dec 2020 11:03:29 +0000 (12:03 +0100)]
mptcp: link MPC subflow into msk only after accept

Christoph reported the following splat:

WARNING: CPU: 0 PID: 4615 at net/ipv4/inet_connection_sock.c:1031 inet_csk_listen_stop+0x8e8/0xad0 net/ipv4/inet_connection_sock.c:1031
Modules linked in:
CPU: 0 PID: 4615 Comm: syz-executor.4 Not tainted 5.9.0 #37
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:inet_csk_listen_stop+0x8e8/0xad0 net/ipv4/inet_connection_sock.c:1031
Code: 03 00 00 00 e8 79 b2 3d ff e9 ad f9 ff ff e8 1f 76 ba fe be 02 00 00 00 4c 89 f7 e8 62 b2 3d ff e9 14 f9 ff ff e8 08 76 ba fe <0f> 0b e9 97 f8 ff ff e8 fc 75 ba fe be 03 00 00 00 4c 89 f7 e8 3f
RSP: 0018:ffffc900037f7948 EFLAGS: 00010293
RAX: ffff88810a349c80 RBX: ffff888114ee1b00 RCX: ffffffff827b14cd
RDX: 0000000000000000 RSI: ffffffff827b1c38 RDI: 0000000000000005
RBP: ffff88810a2a8000 R08: ffff88810a349c80 R09: fffff520006fef1f
R10: 0000000000000003 R11: fffff520006fef1e R12: ffff888114ee2d00
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888114ee1d68
FS:  00007f2ac1945700(0000) GS:ffff88811b400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd44798bc0 CR3: 0000000109810002 CR4: 0000000000170ef0
Call Trace:
 __tcp_close+0xd86/0x1110 net/ipv4/tcp.c:2433
 __mptcp_close_ssk+0x256/0x430 net/mptcp/protocol.c:1761
 __mptcp_destroy_sock+0x49b/0x770 net/mptcp/protocol.c:2127
 mptcp_close+0x62d/0x910 net/mptcp/protocol.c:2184
 inet_release+0xe9/0x1f0 net/ipv4/af_inet.c:434
 __sock_release+0xd2/0x280 net/socket.c:596
 sock_close+0x15/0x20 net/socket.c:1277
 __fput+0x276/0x960 fs/file_table.c:281
 task_work_run+0x109/0x1d0 kernel/task_work.c:151
 get_signal+0xe8f/0x1d40 kernel/signal.c:2561
 arch_do_signal+0x88/0x1b60 arch/x86/kernel/signal.c:811
 exit_to_user_mode_loop kernel/entry/common.c:161 [inline]
 exit_to_user_mode_prepare+0x9b/0xf0 kernel/entry/common.c:191
 syscall_exit_to_user_mode+0x22/0x150 kernel/entry/common.c:266
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f2ac1254469
Code: 00 f3 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ff 49 2b 00 f7 d8 64 89 01 48
RSP: 002b:00007f2ac1944dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffbf RBX: 000000000069bf00 RCX: 00007f2ac1254469
RDX: 0000000000000000 RSI: 0000000000008982 RDI: 0000000000000003
RBP: 000000000069bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000069bf0c
R13: 00007ffeb53f178f R14: 00000000004668b0 R15: 0000000000000003

After commit 0397c6d85f9c ("mptcp: keep unaccepted MPC subflow into
join list"), the msk's workqueue and/or PM can touch the MPC
subflow - and acquire its socket lock - even if it's still unaccepted.

If the above event races with the relevant listener socket close, we
can end-up with the above splat.

This change addresses the issue delaying the MPC socket insertion
in conn_list at accept time - that is, partially reverting the
blamed commit.

We must additionally ensure that mptcp_pm_fully_established()
happens after accept() time, or the PM will not be able to
handle properly such event - conn_list could be empty otherwise.

In the receive path, we check the subflow list node to ensure
it is out of the listener queue. Be sure client subflows do
not match transiently such condition moving them into the join
list earlier at creation time.

Since we now have multiple mptcp_pm_fully_established() call sites
from different code-paths, said helper can now race with itself.
Use an additional PM status bit to avoid multiple notifications.

Reported-by: Christoph Paasch <cpaasch@apple.com>
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/103
Fixes: 0397c6d85f9c ("mptcp: keep unaccepted MPC subflow into join list"),
Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hdlc_x25: Remove unnecessary skb_reset_network_header calls
Xie He [Wed, 9 Dec 2020 01:43:54 +0000 (17:43 -0800)]
net: hdlc_x25: Remove unnecessary skb_reset_network_header calls

1. In x25_xmit, skb_reset_network_header is not necessary before we call
lapb_data_request. The lapb module doesn't need skb->network_header.
So there is no need to set skb->network_header before calling
lapb_data_request.

2. In x25_data_indication (called by the lapb module after data have
been received), skb_reset_network_header is not necessary before we
call netif_rx. After we call netif_rx, the code in net/core/dev.c will
call skb_reset_network_header before handing the skb to upper layers
(in __netif_receive_skb_core, called by __netif_receive_skb_one_core,
called by __netif_receive_skb, called by process_backlog). So we don't
need to call skb_reset_network_header by ourselves.

Cc: Martin Schiller <ms@dev.tdt.de>
Signed-off-by: Xie He <xie.he.0141@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/mlx4: simplify the return expression of mlx4_init_cq_table()
Zheng Yongjun [Wed, 9 Dec 2020 01:20:02 +0000 (09:20 +0800)]
net/mlx4: simplify the return expression of mlx4_init_cq_table()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoibmvnic: fix rx buffer tracking and index management in replenish_rx_pool partial...
Dwip N. Banerjee [Thu, 10 Dec 2020 01:53:31 +0000 (20:53 -0500)]
ibmvnic: fix rx buffer tracking and index management in replenish_rx_pool partial success

We observed that in the error case for batched send_subcrq_indirect() the
driver does not account for the partial success case. This caused Linux to
crash when free_map and pool index are inconsistent.

Driver needs to update the rx pools "available" count when some batched
sends worked but an error was encountered as part of the whole operation.
Also track replenish_add_buff_failure for statistic purposes.

Fixes: 4f0b6812e9b9a ("ibmvnic: Introduce batched RX buffer descriptor transmission")
Signed-off-by: Dwip N. Banerjee <dnbanerg@us.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mptcp-Add-port-parameter-to-ADD_ADDR-option'
David S. Miller [Thu, 10 Dec 2020 03:02:16 +0000 (19:02 -0800)]
Merge branch 'mptcp-Add-port-parameter-to-ADD_ADDR-option'

Mat Martineau says:

====================
mptcp: Add port parameter to ADD_ADDR option

The ADD_ADDR MPTCP option is used to announce available IP addresses
that a peer may connect to when adding more TCP subflows to an existing
MPTCP connection. There is an optional port number field in that
ADD_ADDR header, and this patch set adds capability for that port number
to be sent and received.

Patches 1, 2, and 4 refactor existing ADD_ADDR code to simplify implementation
of port number support.

Patches 3 and 5 are the main functional changes, for sending and
receiving the port number in the MPTCP ADD_ADDR option.

Patch 6 sends the ADD_ADDR option with port number on a bare TCP ACK,
since the extra length of the option may run in to cases where
sufficient TCP option space is not available on a data packet.

Patch 7 plumbs in port number support for the in-kernel MPTCP path
manager.

Patches 8-11 add some optional debug output and a little more cleanup
refactoring.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: use the variable sk instead of open-coding
Geliang Tang [Wed, 9 Dec 2020 23:51:28 +0000 (15:51 -0800)]
mptcp: use the variable sk instead of open-coding

Since the local variable sk has been defined, use it instead of
open-coding.

Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: rename add_addr_signal and mptcp_add_addr_status
Geliang Tang [Wed, 9 Dec 2020 23:51:27 +0000 (15:51 -0800)]
mptcp: rename add_addr_signal and mptcp_add_addr_status

Since the RM_ADDR signal had been reused with add_addr_signal, it's not
suitable to call it add_addr_signal or mptcp_add_addr_status. So this
patch renamed add_addr_signal to addr_signal, and renamed
mptcp_add_addr_status to mptcp_addr_signal_status.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: drop rm_addr_signal flag
Geliang Tang [Wed, 9 Dec 2020 23:51:26 +0000 (15:51 -0800)]
mptcp: drop rm_addr_signal flag

This patch reused add_addr_signal for the RM_ADDR announcing signal, by
defining a new ADD_ADDR status named MPTCP_RM_ADDR_SIGNAL. Then the flag
rm_addr_signal in PM could be dropped.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: print out port and ahmac when receiving ADD_ADDR
Geliang Tang [Wed, 9 Dec 2020 23:51:25 +0000 (15:51 -0800)]
mptcp: print out port and ahmac when receiving ADD_ADDR

This patch printed out more debugging information for the ADD_ADDR
suboption parsing on the incoming path.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: add port parameter for mptcp_pm_announce_addr
Geliang Tang [Wed, 9 Dec 2020 23:51:24 +0000 (15:51 -0800)]
mptcp: add port parameter for mptcp_pm_announce_addr

This patch added a new parameter 'port' for mptcp_pm_announce_addr. If
this parameter is true, we set the MPTCP_ADD_ADDR_PORT bit of the
add_addr_signal. That means the announced address is added with a port
number.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: send out dedicated packet for ADD_ADDR using port
Geliang Tang [Wed, 9 Dec 2020 23:51:23 +0000 (15:51 -0800)]
mptcp: send out dedicated packet for ADD_ADDR using port

The process is similar to that of the ADD_ADDR IPv6, this patch also sent
out a pure ack for the ADD_ADDR using port.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: add the outgoing ADD_ADDR port support
Geliang Tang [Wed, 9 Dec 2020 23:51:22 +0000 (15:51 -0800)]
mptcp: add the outgoing ADD_ADDR port support

This patch added a new add_addr_signal type named MPTCP_ADD_ADDR_PORT,
to identify it is an address with port to be added.

It also added a new parameter 'port' for both mptcp_add_addr_len and
mptcp_pm_add_addr_signal.

In mptcp_established_options_add_addr, we check whether the announced
address is added with port. If it is, we put this port number to
mptcp_out_options's port field.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: use adding up size to get ADD_ADDR length
Geliang Tang [Wed, 9 Dec 2020 23:51:21 +0000 (15:51 -0800)]
mptcp: use adding up size to get ADD_ADDR length

This patch uses adding up size to get the ADD_ADDR suboption length rather
than returning the ADD_ADDR size constants.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: add port support for ADD_ADDR suboption writing
Geliang Tang [Wed, 9 Dec 2020 23:51:20 +0000 (15:51 -0800)]
mptcp: add port support for ADD_ADDR suboption writing

In rfc8684, the length of ADD_ADDR suboption with IPv4 address and port
is 18 octets, but mptcp_write_options is 32-bit aligned, so we need to
pad it to 20 octets. All the other port related option lengths need to
be added up 2 octets similarly.

This patch added a new field 'port' in mptcp_out_options. When this
field is set with a port number, we need to add up 4 octets for the
ADD_ADDR suboption, and put the port number into the suboption.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: unify ADD_ADDR and ADD_ADDR6 suboptions writing
Geliang Tang [Wed, 9 Dec 2020 23:51:19 +0000 (15:51 -0800)]
mptcp: unify ADD_ADDR and ADD_ADDR6 suboptions writing

The length of ADD_ADDR6 is 12 octets longer than ADD_ADDR. That's the
only difference between them.

This patch dropped the duplicate code between ADD_ADDR and ADD_ADDR6
suboptions writing, and unify them into one.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomptcp: unify ADD_ADDR and echo suboptions writing
Geliang Tang [Wed, 9 Dec 2020 23:51:18 +0000 (15:51 -0800)]
mptcp: unify ADD_ADDR and echo suboptions writing

There are two differences between ADD_ADDR suboption and ADD_ADDR echo
suboption: The length of the former is 8 octets longer than the length
of the latter. The former's echo-flag is 0, and latter's echo-flag is 1.

This patch added two local variables, len and echo, to unify ADD_ADDR
and ADD_ADDR echo suboptions writing.

Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next...
David S. Miller [Thu, 10 Dec 2020 02:51:59 +0000 (18:51 -0800)]
Merge branch '100GbE' of git://git./linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2020-12-09

This series contains updates to ice driver only.

Bruce changes the allocation of ice_flow_prof_params from stack to heap to
avoid excessive stack usage. Corrects a misleading comment and silences a
sparse warning that is not a problem.

Paul allows for HW initialization to continue if PHY abilities cannot
be obtained.

Jeb removes bypassing FW link override and reading Option ROM and
netlist information for non-E810 devices as this is now available on
other devices.

Nick removes vlan_ena field as this information can be gathered by
checking num_vlan.

Jake combines format strings and debug prints to the same line.

Simon adds a space to fix string concatenation.

v4: Drop ACL patches. Change PHY abilities failure message from debug to
warning.
v3: Fix email address for DaveM and fix character in cover letter
v2: Expand on commit message for patch 3 to show example usage/commands.
    Reduce number of defensive checks being done.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: octeontx2: simplify the otx2_ptp_adjfine()
Zheng Yongjun [Wed, 9 Dec 2020 09:27:26 +0000 (17:27 +0800)]
net: marvell: octeontx2: simplify the otx2_ptp_adjfine()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: simplify the return rtl8366_vlan_prepare()
Zheng Yongjun [Wed, 9 Dec 2020 09:26:21 +0000 (17:26 +0800)]
net: dsa: simplify the return rtl8366_vlan_prepare()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: stmmac: simplify the return dwmac5_rxp_disable()
Zheng Yongjun [Wed, 9 Dec 2020 09:23:25 +0000 (17:23 +0800)]
net: stmmac: simplify the return dwmac5_rxp_disable()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: hinic: simplify the return hinic_configure_max_qnum()
Zheng Yongjun [Wed, 9 Dec 2020 09:22:41 +0000 (17:22 +0800)]
net: hinic: simplify the return hinic_configure_max_qnum()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: freescale: dpaa: simplify the return dpaa_eth_refill_bpools()
Zheng Yongjun [Wed, 9 Dec 2020 09:21:07 +0000 (17:21 +0800)]
net: freescale: dpaa: simplify the return dpaa_eth_refill_bpools()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Acked-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: cisco: enic: simplify the return vnic_cq_alloc()
Zheng Yongjun [Wed, 9 Dec 2020 09:20:31 +0000 (17:20 +0800)]
net: cisco: enic: simplify the return vnic_cq_alloc()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: emulex: benet: simplify the return expression of be_if_create()
Zheng Yongjun [Wed, 9 Dec 2020 09:19:57 +0000 (17:19 +0800)]
net: emulex: benet: simplify the return expression of be_if_create()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: octeontx2: simplify the return expression of rvu_npa_init()
Zheng Yongjun [Wed, 9 Dec 2020 09:18:44 +0000 (17:18 +0800)]
net: marvell: octeontx2: simplify the return expression of rvu_npa_init()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: marvell: prestera: simplify the return expression of prestera_port_close()
Zheng Yongjun [Wed, 9 Dec 2020 09:17:51 +0000 (17:17 +0800)]
net: marvell: prestera: simplify the return expression of prestera_port_close()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'nfc-s3fwrn5-Change-I2C-interrupt-trigger-to-EDGE_RISING'
David S. Miller [Thu, 10 Dec 2020 00:49:46 +0000 (16:49 -0800)]
Merge branch 'nfc-s3fwrn5-Change-I2C-interrupt-trigger-to-EDGE_RISING'

Bongsu Jeon says:

====================
nfc: s3fwrn5: Change I2C interrupt trigger to EDGE_RISING

For stable Samsung's I2C interrupt handling, I changed the interrupt
trigger from IRQ_TYPE_LEVEL_HIGH to IRQ_TYPE_EDGE_RISING and removed
the hard coded interrupt trigger type in the i2c module for the flexible
control.

1/2 is the changed dt binding for the edge rising trigger.
2/2 is to remove the hard coded interrupt trigger type in the i2c module.

ChangeLog:
 v2:
  2/2
   - remove the hard coded interrupt trigger type.

Bongsu Jeon (2):
  dt-bindings: net: nfc: s3fwrn5: Change I2C interrupt trigger to
    EDGE_RISING
  nfc: s3fwrn5: Remove hard coded interrupt trigger type from the i2c
    module
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonfc: s3fwrn5: Remove hard coded interrupt trigger type from the i2c module
Bongsu Jeon [Tue, 8 Dec 2020 14:10:12 +0000 (23:10 +0900)]
nfc: s3fwrn5: Remove hard coded interrupt trigger type from the i2c module

For the flexible control of interrupt trigger type, remove the hard coded
interrupt trigger type in the i2c module. The trigger type will be loaded
 from a dts.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: net: nfc: s3fwrn5: Change I2C interrupt trigger type
Bongsu Jeon [Tue, 8 Dec 2020 14:10:11 +0000 (23:10 +0900)]
dt-bindings: net: nfc: s3fwrn5: Change I2C interrupt trigger type

Change interrupt trigger from IRQ_TYPE_LEVEL_HIGH to IRQ_TYPE_EDGE_RISING
 for stable NFC I2C interrupt handling.
Samsung's NFC Firmware sends an i2c frame as below.
1. NFC Firmware sets the GPIO(interrupt pin) high when there is an i2c
 frame to send.
2. If the CPU's I2C master has received the i2c frame, NFC F/W sets the
GPIO low.
NFC driver's i2c interrupt handler would be called in the abnormal case
as the NFC FW task of number 2 is delayed because of other high priority
tasks.
In that case, NFC driver will try to receive the i2c frame but there isn't
 any i2c frame to send in NFC.
It would cause an I2C communication problem. This case would hardly happen.
But, I changed the interrupt as a defense code.
If Driver uses the TRIGGER_RISING instead of the LEVEL trigger,
there would be no problem even if the NFC FW task is delayed.

Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipa: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:40:03 +0000 (21:40 +0800)]
net: ipa: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mv88e6xxx: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:39:38 +0000 (21:39 +0800)]
net: mv88e6xxx: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: thunderbolt: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:38:52 +0000 (21:38 +0800)]
net: thunderbolt: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: usb: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:38:11 +0000 (21:38 +0800)]
net: usb: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: freescale: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:37:39 +0000 (21:37 +0800)]
net: freescale: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ethernet: ti: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:37:16 +0000 (21:37 +0800)]
net: ethernet: ti: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agohisilicon/hns3: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:36:30 +0000 (21:36 +0800)]
hisilicon/hns3: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agohisilicon/hns: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:35:31 +0000 (21:35 +0800)]
hisilicon/hns: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: mlx5: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:34:41 +0000 (21:34 +0800)]
net: mlx5: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: micrel: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:34:02 +0000 (21:34 +0800)]
net: micrel: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: rxrpc: convert comma to semicolon
Zheng Yongjun [Wed, 9 Dec 2020 13:32:28 +0000 (21:32 +0800)]
net: rxrpc: convert comma to semicolon

Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'macb-sama7g5'
David S. Miller [Thu, 10 Dec 2020 00:19:21 +0000 (16:19 -0800)]
Merge branch 'macb-sama7g5'

Claudiu Beznea says:

====================
net: macb: add support for sama7g5

This series adds support for SAMA7G5 Ethernet interfaces: one 10/100Mbps
and one 1Gbps interfaces.

Along with it I also included a fix to disable clocks for SiFive FU540-C000
on failure path of fu540_c000_clk_init().

Thank you,
Claudiu Beznea

Changed in v3:
- use clk_bulk_disable_unprepare in patch 3/8
- corrected clang compilation warning in patch 3/8
- revert changes in macb_clk_init() in patch 3/8

Changes in v2:
- introduced patch "net: macb: add function to disable all macb clocks" and
  update patch "net: macb: unprepare clocks in case of failure" accordingly
- collected tags
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: macb: add support for sama7g5 emac interface
Claudiu Beznea [Wed, 9 Dec 2020 13:03:39 +0000 (15:03 +0200)]
net: macb: add support for sama7g5 emac interface

Add support for SAMA7G5 10/100Mbps interface.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: macb: add support for sama7g5 gem interface
Claudiu Beznea [Wed, 9 Dec 2020 13:03:38 +0000 (15:03 +0200)]
net: macb: add support for sama7g5 gem interface

Add support for SAMA7G5 gigabit ethernet interface.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: add documentation for sama7g5 gigabit ethernet interface
Claudiu Beznea [Wed, 9 Dec 2020 13:03:37 +0000 (15:03 +0200)]
dt-bindings: add documentation for sama7g5 gigabit ethernet interface

Add documentation for SAMA7G5 gigabit ethernet interface.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodt-bindings: add documentation for sama7g5 ethernet interface
Claudiu Beznea [Wed, 9 Dec 2020 13:03:36 +0000 (15:03 +0200)]
dt-bindings: add documentation for sama7g5 ethernet interface

Add documentation for SAMA7G5 ethernet interface.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: macb: unprepare clocks in case of failure
Claudiu Beznea [Wed, 9 Dec 2020 13:03:35 +0000 (15:03 +0200)]
net: macb: unprepare clocks in case of failure

Unprepare clocks in case of any failure in fu540_c000_clk_init().

Fixes: c218ad559020 ("macb: Add support for SiFive FU540-C000")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: macb: add function to disable all macb clocks
Claudiu Beznea [Wed, 9 Dec 2020 13:03:34 +0000 (15:03 +0200)]
net: macb: add function to disable all macb clocks

Add function to disable all macb clocks.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: macb: add capability to not set the clock rate
Claudiu Beznea [Wed, 9 Dec 2020 13:03:33 +0000 (15:03 +0200)]
net: macb: add capability to not set the clock rate

SAMA7G5's ethernet IPs TX clock could be provided by its generic clock or
by the external clock provided by the PHY. The internal IP logic divides
properly this clock depending on the link speed. The patch adds a new
capability so that macb_set_tx_clock() to not be called for IPs having
this capability (the clock rate, in case of generic clock, is set at the
boot time via device tree and the driver only enables it).

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: macb: add userio bits as platform configuration
Claudiu Beznea [Wed, 9 Dec 2020 13:03:32 +0000 (15:03 +0200)]
net: macb: add userio bits as platform configuration

This is necessary for SAMA7G5 as it uses different values for
PHY interface and also introduces hdfctlen bit.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: sched: incorrect Kconfig dependencies on Netfilter modules
Pablo Neira Ayuso [Tue, 8 Dec 2020 20:47:07 +0000 (21:47 +0100)]
net: sched: incorrect Kconfig dependencies on Netfilter modules

- NET_ACT_CONNMARK and NET_ACT_CTINFO only require conntrack support.
- NET_ACT_IPT only requires NETFILTER_XTABLES symbols, not
  IP_NF_IPTABLES. After this patch, NET_ACT_IPT becomes consistent
  with NET_EMATCH_IPT. NET_ACT_IPT dependency on IP_NF_IPTABLES predates
  Linux-2.6.12-rc2 (initial git repository build).

Fixes: 22a5dc0e5e3e ("net: sched: Introduce connmark action")
Fixes: 24ec483cec98 ("net: sched: Introduce act_ctinfo action")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Link: https://lore.kernel.org/r/20201208204707.11268-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoMerge branch 'xdp-redirect-implementation-for-ena-driver'
Jakub Kicinski [Wed, 9 Dec 2020 23:26:42 +0000 (15:26 -0800)]
Merge branch 'xdp-redirect-implementation-for-ena-driver'

Shay Agroskin says:

====================
XDP Redirect implementation for ENA driver

ENA is adding XDP Redirect support for its driver and some other
small tweaks.

This series adds the following:

- Make log messages in the driver have a uniform format using
  netdev_* function
- Improve code readability
- Add support for XDP Redirect
====================

Link: https://lore.kernel.org/r/20201208180208.26111-1-shayagr@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: introduce ndo_xdp_xmit() function for XDP_REDIRECT
Shay Agroskin [Tue, 8 Dec 2020 18:02:08 +0000 (20:02 +0200)]
net: ena: introduce ndo_xdp_xmit() function for XDP_REDIRECT

This patch implements the ndo_xdp_xmit() net_device function which is
called when a packet is redirected to this driver using an
XDP_REDIRECT directive.

The function receives an array of xdp frames that it needs to xmit.
The TX queues that are used to xmit these frames are the XDP
queues used by the XDP_TX flow. Therefore a lock is added to synchronize
both flows (XDP_TX and XDP_REDIRECT).

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: use xdp_return_frame() to free xdp frames
Shay Agroskin [Tue, 8 Dec 2020 18:02:07 +0000 (20:02 +0200)]
net: ena: use xdp_return_frame() to free xdp frames

XDP subsystem has a function to free XDP frames and their associated
pages. Using this function would help the driver's XDP implementation to
adjust to new changes in the XDP subsystem in the kernel (e.g.
introduction of XDP MB).

Also, remove 'xdp_rx_page' field from ena_tx_buffer struct since it is
no longer used.

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: introduce XDP redirect implementation
Shay Agroskin [Tue, 8 Dec 2020 18:02:06 +0000 (20:02 +0200)]
net: ena: introduce XDP redirect implementation

This patch adds a partial support for the XDP_REDIRECT directive which
instructs the driver to pass the packet to an interface specified by the
program. The directive is passed to the driver by calling bpf_redirect()
or bpf_redirect_map() functions from the eBPF program.

To lay the ground for integration with the existing XDP TX
implementation the patch removes the redundant page ref count increase
in ena_xdp_xmit_frame() and then decrease in ena_clean_rx_irq(). Instead
it only DMA unmaps descriptors for which XDP TX or REDIRECT directive
was received.

The XDP Redirect support is still missing .ndo_xdp_xmit function
implementation, which allows to redirect packet to an ENA interface,
which would be added in a later patch.

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: use xdp_frame in XDP TX flow
Shay Agroskin [Tue, 8 Dec 2020 18:02:05 +0000 (20:02 +0200)]
net: ena: use xdp_frame in XDP TX flow

Rename the ena_xdp_xmit_buff() function to ena_xdp_xmit_frame() and pass
it an xdp_frame struct instead of xdp_buff.
This change lays the ground for XDP redirect implementation which uses
xdp_frames when 'xmit'ing packets.

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: aggregate stats increase into a function
Shay Agroskin [Tue, 8 Dec 2020 18:02:04 +0000 (20:02 +0200)]
net: ena: aggregate stats increase into a function

Introduce ena_increase_stat() function to increase statistics by a
certain number.
The function includes the
    - lock aquire (on 32bit machines)
    - stat increase
    - lock release (on 32bit machines)

line sequence that is ubiquitous across the driver.

The function increases a single stat at a time and several stats which
are increased together weren't put into a function to avoid
calling the function several times for each stat which looks bad and
might decrease performance.

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: fix coding style nits
Shay Agroskin [Tue, 8 Dec 2020 18:02:03 +0000 (20:02 +0200)]
net: ena: fix coding style nits

This commit fixes two nits, but it does not generate any change to binary
because of the optimization of gcc.

  - use `count` instead of `channels->combined_count`
  - change return type from `int` to `bool`

Also add spaces and change macro order in OR assignment to make the code
easier to read.

Signed-off-by: Sameeh Jubran <sameehj@amazon.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: store values in their appropriate variables types
Shay Agroskin [Tue, 8 Dec 2020 18:02:02 +0000 (20:02 +0200)]
net: ena: store values in their appropriate variables types

This patch changes some of the variables types to match the values they
hold. These wrong types fail some of our static checkers that search for
accidental conversions in our driver.

Signed-off-by: Ido Segev <idose@amazon.com>
Signed-off-by: Igor Chauskin <igorch@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: add device distinct log prefix to files
Shay Agroskin [Tue, 8 Dec 2020 18:02:01 +0000 (20:02 +0200)]
net: ena: add device distinct log prefix to files

ENA logs are adjusted to display the full ENA representation to
distinct each ENA device in case of multiple interfaces.
Using netdev_err/warn and dev_info functions for logging provides
uniform printing with clear distinction of the device and interface.

This patch changes all printing in ena_com files to use netev_* logging
functions except for messages of info level. Log functions of that level
would be printed with dev_info because of the early stage they are
called in when net_device struct isn't yet registered.

To allow using netdev_* functions in all ena_com functions, a pointer to
the net_device was added to ena_com_dev struct.

The patch also adds some log messages to make driver debugging easier.

Signed-off-by: Amit Bernstein <amitbern@amazon.com>
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agonet: ena: use constant value for net_device allocation
Shay Agroskin [Tue, 8 Dec 2020 18:02:00 +0000 (20:02 +0200)]
net: ena: use constant value for net_device allocation

The patch changes the maximum number of RX/TX queues it advertises to
the kernel (via alloc_etherdev_mq()) from a value received from the
device to a constant value which is the minimum between 128 and the
number of CPUs in the system.

By allocating the net_device struct with a constant number of queues,
the driver is able to allocate it at a much earlier stage, before
calling any ena_com functions. This would allow to make all log prints
in ena_com to use netdev_* log functions instead or current pr_* ones.

Note:
netdev_* prints in ena_com functions that are called before
net_device registration in ena_probe() might print messages that are
a bit ugly (with strings like "(unnamed net_device) (uninitialized)").
However we decided to use netdev_* prints in these functions anyway,
for the sake of getting better messages later, when ena_com functions
are called after ena_probe() form other parts of the driver.
See discussion about this decision in [1].

[1] http://www.mail-archive.com/netdev@vger.kernel.org/msg353590.html

Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoptp: clockmatrix: deprecate firmware older than 4.8.7
Min Li [Tue, 8 Dec 2020 15:41:57 +0000 (10:41 -0500)]
ptp: clockmatrix: deprecate firmware older than 4.8.7

Add deprecated flag to indicate < v4.8.7.
Fix idtcm_enable_tod() call correct settime().

Signed-off-by: Min Li <min.li.xe@renesas.com>
Link: https://lore.kernel.org/r/1607442117-13661-4-git-send-email-min.li.xe@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoptp: clockmatrix: Fix non-zero phase_adj is lost after snap
Min Li [Tue, 8 Dec 2020 15:41:56 +0000 (10:41 -0500)]
ptp: clockmatrix: Fix non-zero phase_adj is lost after snap

Fix non-zero phase_adj is lost after snap. Use ktime_sub
to do ktime_t subtraction.

Signed-off-by: Min Li <min.li.xe@renesas.com>
Link: https://lore.kernel.org/r/1607442117-13661-3-git-send-email-min.li.xe@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoptp: clockmatrix: remove 5 second delay before entering write phase mode
Min Li [Tue, 8 Dec 2020 15:41:55 +0000 (10:41 -0500)]
ptp: clockmatrix: remove 5 second delay before entering write phase mode

Remove write phase mode 5 second setup delay, not needed.

Signed-off-by: Min Li <min.li.xe@renesas.com>
Link: https://lore.kernel.org/r/1607442117-13661-2-git-send-email-min.li.xe@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoptp: clockmatrix: reset device and check BOOT_STATUS
Min Li [Tue, 8 Dec 2020 15:41:54 +0000 (10:41 -0500)]
ptp: clockmatrix: reset device and check BOOT_STATUS

SM_RESET device only when loading full configuration and check
for BOOT_STATUS. Also remove polling for write trigger done in
_idtcm_settime().

Changes since v1:
-Correct warnings from strict checkpatch

Signed-off-by: Min Li <min.li.xe@renesas.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Link: https://lore.kernel.org/r/1607442117-13661-1-git-send-email-min.li.xe@renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agovrf: handle CONFIG_IPV6 not set for vrf_add_mac_header_if_unset()
Andrea Mayer [Tue, 8 Dec 2020 17:52:10 +0000 (18:52 +0100)]
vrf: handle CONFIG_IPV6 not set for vrf_add_mac_header_if_unset()

The vrf_add_mac_header_if_unset() is defined within a conditional
compilation block which depends on the CONFIG_IPV6 macro.
However, the vrf_add_mac_header_if_unset() needs to be called also by IPv4
related code and when the CONFIG_IPV6 is not set, this function is missing.
As a consequence, the build process stops reporting the error:

 ERROR: implicit declaration of function 'vrf_add_mac_header_if_unset'

The problem is solved by *only* moving functions
vrf_add_mac_header_if_unset() and vrf_prepare_mac_header() out of the
conditional block.

Reported-by: kernel test robot <lkp@intel.com>
Fixes: 0489390882202 ("vrf: add mac header for tunneled packets when sniffer is attached")
Signed-off-by: Andrea Mayer <andrea.mayer@uniroma2.it>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20201208175210.8906-1-andrea.mayer@uniroma2.it
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
3 years agoice: Add space to unknown speed
Simon Perron Caissy [Thu, 17 Sep 2020 20:13:47 +0000 (13:13 -0700)]
ice: Add space to unknown speed

Add space to the end of 'Unknown' string  in  order to avoid
concatenation with 'bps' string when formatting netdev log message.

Signed-off-by: Simon Perron Caissy <simon.perron.caissy@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: join format strings to same line as ice_debug
Jacob Keller [Thu, 17 Sep 2020 20:13:46 +0000 (13:13 -0700)]
ice: join format strings to same line as ice_debug

When printing messages with ice_debug, align the printed string to the
origin line of the message in order to ease debugging and tracking
messages back to their source.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: silence static analysis warning
Bruce Allan [Thu, 17 Sep 2020 20:13:45 +0000 (13:13 -0700)]
ice: silence static analysis warning

sparse warns about cast to/from restricted types which is not
an actual problem; silence the warning.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: cleanup misleading comment
Bruce Allan [Thu, 17 Sep 2020 20:13:44 +0000 (13:13 -0700)]
ice: cleanup misleading comment

The maximum Admin Queue buffer size and NVM shadow RAM sector size are both
4 Kilobytes. Some comments refer to those as 4Kb which can be confused with
4 Kilobits. Update the comments to use the commonly used KB symbol instead.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: Remove vlan_ena from vsi structure
Nick Nunley [Thu, 17 Sep 2020 20:13:43 +0000 (13:13 -0700)]
ice: Remove vlan_ena from vsi structure

vlan_ena was introduced to track whether VLAN filters are enabled on
the device, but
1) checking for num_vlan > 1 already gives us this information, and is
currently used in this way throughout the code
2) the logic for vlan_ena is broken when multiple VLANs are active

Just remove vlan_ena and use num_vlan instead.

Signed-off-by: Nick Nunley <nicholas.d.nunley@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: Remove gate to OROM init
Jeb Cramer [Thu, 17 Sep 2020 20:13:42 +0000 (13:13 -0700)]
ice: Remove gate to OROM init

Remove the gate that prevents the OROM and netlist info from being
populated.  The NVM now has the appropriate section for software to
reference the versioning info.

Signed-off-by: Jeb Cramer <jeb.j.cramer@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: Enable Support for FW Override (E82X)
Jeb Cramer [Thu, 17 Sep 2020 20:13:41 +0000 (13:13 -0700)]
ice: Enable Support for FW Override (E82X)

The driver is able to override the firmware when it comes to supporting
a more lenient link mode.  This feature was limited to E810 devices.  It
is now extended to E82X devices.

Signed-off-by: Jeb Cramer <jeb.j.cramer@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: don't always return an error for Get PHY Abilities AQ command
Paul M Stillwell Jr [Thu, 17 Sep 2020 20:13:40 +0000 (13:13 -0700)]
ice: don't always return an error for Get PHY Abilities AQ command

There are times when the driver shouldn't return an error when the Get
PHY abilities AQ command (0x0600) returns an error. Instead the driver
should log that the error occurred and continue on. This allows the
driver to load even though the AQ command failed. The user can then
later determine the reason for the failure and correct it.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agoice: cleanup stack hog
Bruce Allan [Mon, 14 Sep 2020 15:37:14 +0000 (08:37 -0700)]
ice: cleanup stack hog

In ice_flow_add_prof_sync(), struct ice_flow_prof_params has recently
grown in size hogging stack space when allocated there.  Hogging stack
space should be avoided.  Change allocation to be on the heap when needed.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Harikumar Bokkena <harikumarx.bokkena@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
3 years agonet: atheros: simplify the return expression of atl2_phy_setup_autoneg_adv()
Zheng Yongjun [Tue, 8 Dec 2020 13:57:30 +0000 (21:57 +0800)]
net: atheros: simplify the return expression of atl2_phy_setup_autoneg_adv()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodrivers: net: qlcnic: simplify the return expression of qlcnic_sriov_vf_shutdown()
Zheng Yongjun [Tue, 8 Dec 2020 13:54:37 +0000 (21:54 +0800)]
drivers: net: qlcnic: simplify the return expression of qlcnic_sriov_vf_shutdown()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agodrivers: net: ionic: simplify the return expression of ionic_set_rxfh()
Zheng Yongjun [Tue, 8 Dec 2020 13:53:53 +0000 (21:53 +0800)]
drivers: net: ionic: simplify the return expression of ionic_set_rxfh()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: openvswitch: conntrack: simplify the return expression of ovs_ct_limit_get_defau...
Zheng Yongjun [Tue, 8 Dec 2020 12:13:53 +0000 (20:13 +0800)]
net: openvswitch: conntrack: simplify the return expression of ovs_ct_limit_get_default_limit()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Reviewed-by: Eelco Chaudron <echaudro@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: core: devlink: simplify the return expression of devlink_nl_cmd_trap_set_doit()
Zheng Yongjun [Tue, 8 Dec 2020 12:10:46 +0000 (20:10 +0800)]
net: core: devlink: simplify the return expression of devlink_nl_cmd_trap_set_doit()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: ipv6: rpl_iptunnel: simplify the return expression of rpl_do_srh()
Zheng Yongjun [Tue, 8 Dec 2020 12:09:49 +0000 (20:09 +0800)]
net: ipv6: rpl_iptunnel: simplify the return expression of rpl_do_srh()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/sched: cls_u32: simplify the return expression of u32_reoffload_knode()
Zheng Yongjun [Tue, 8 Dec 2020 12:08:22 +0000 (20:08 +0800)]
net/sched: cls_u32: simplify the return expression of u32_reoffload_knode()

Simplify the return expression.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: dsa: mt7530: support setting ageing time
DENG Qingfang [Tue, 8 Dec 2020 07:00:28 +0000 (15:00 +0800)]
net: dsa: mt7530: support setting ageing time

MT7530 has a global address age control register, so use it to set
ageing time.

The applied timer is (AGE_CNT + 1) * (AGE_UNIT + 1) seconds

Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'GVE-Raw-Addressing'
David S. Miller [Wed, 9 Dec 2020 00:06:29 +0000 (16:06 -0800)]
Merge branch 'GVE-Raw-Addressing'

David Awogbemil says:

====================
GVE Raw Addressing
Patchset description:
This  patchset introduces "raw addressing" mode to the GVE driver.
Previously (in "queue_page_list" or "qpl" mode), the driver would
pre-allocate and dma_map buffers to be used on egress and ingress.
On egress, it would copy data from the skb provided to the
pre-allocated buffers - this was expensive.
In raw addressing mode, the driver can avoid this copy and simply
dma_map the skb's data so that the NIC can use it.
On ingress, the driver passes buffers up to the networking stack and
then frees and reallocates buffers when necessary instead of using
skb_copy_to_linear_data.
Patch 3 separates the page refcount tracking mechanism
into a function gve_rx_can_recycle_buffer which uses get_page - this will
be changed in a future patch to eliminate the use of get_page in tracking
page refcounts.

Changes from v9:
  Patch 4: Use u64, not u32 for new tx stat counters.
====================

Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agogve: Add support for raw addressing in the tx path
Catherine Sullivan [Mon, 7 Dec 2020 22:45:26 +0000 (14:45 -0800)]
gve: Add support for raw addressing in the tx path

During TX, skbs' data addresses are dma_map'ed and passed to the NIC.
This means that the device can perform DMA directly from these addresses
and the driver does not have to copy the buffer content into
pre-allocated buffers/qpls (as in qpl mode).

Reviewed-by: Yangchun Fu <yangchun@google.com>
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agogve: Rx Buffer Recycling
David Awogbemila [Mon, 7 Dec 2020 22:45:25 +0000 (14:45 -0800)]
gve: Rx Buffer Recycling

This patch lets the driver reuse buffers that have been freed by the
networking stack.

In the raw addressing case, this allows the driver avoid allocating new
buffers.
In the qpl case, the driver can avoid copies.

This patch separates the page refcount tracking mechanism
into a function gve_rx_can_recycle_buffer which uses get_page - this will
be changed in a future patch to entirely eliminate the use of get_page in
tracking page refcounts.

Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agogve: Add support for raw addressing to the rx path
Catherine Sullivan [Mon, 7 Dec 2020 22:45:24 +0000 (14:45 -0800)]
gve: Add support for raw addressing to the rx path

Add support to use raw dma addresses in the rx path. Due to this new
support we can alloc a new buffer instead of making a copy.

RX buffers are handed to the networking stack and are
re-allocated as needed, avoiding the need to use
skb_copy_to_linear_data() as in "qpl" mode.

Reviewed-by: Yangchun Fu <yangchun@google.com>
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agogve: Add support for raw addressing device option
Catherine Sullivan [Mon, 7 Dec 2020 22:45:23 +0000 (14:45 -0800)]
gve: Add support for raw addressing device option

Add support to describe device for parsing device options. As
the first device option, add raw addressing.

"Raw Addressing" mode (as opposed to the current "qpl" mode) is an
operational mode which allows the driver avoid bounce buffer copies
which it currently performs using pre-allocated qpls (queue_page_lists)
when sending and receiving packets.
For egress packets, the provided skb data addresses will be dma_map'ed and
passed to the device, allowing the NIC can perform DMA directly - the
driver will not have to copy the buffer content into pre-allocated
buffers/qpls (as in qpl mode).
For ingress packets, copies are also eliminated as buffers are handed to
the networking stack and then recycled or re-allocated as
necessary, avoiding the use of skb_copy_to_linear_data().

This patch only introduces the option to the driver.
Subsequent patches will add the ingress and egress functionality.

Reviewed-by: Yangchun Fu <yangchun@google.com>
Signed-off-by: Catherine Sullivan <csully@google.com>
Signed-off-by: David Awogbemila <awogbemila@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet: sched: fix spelling mistake in Kconfig "trys" -> "tries"
Colin Ian King [Mon, 7 Dec 2020 16:12:31 +0000 (16:12 +0000)]
net: sched: fix spelling mistake in Kconfig "trys" -> "tries"

There is a spelling mistake in the Kconfig help text. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetoot...
David S. Miller [Tue, 8 Dec 2020 23:58:49 +0000 (15:58 -0800)]
Merge branch 'for-upstream' of git://git./linux/kernel/git/bluetooth/bluetooth-next

Johan Hedberg says:

====================
pull request: bluetooth-next 2020-12-07

Here's the main bluetooth-next pull request for the 5.11 kernel.

 - Updated Bluetooth entries in MAINTAINERS to include Luiz von Dentz
 - Added support for Realtek 8822CE and 8852A devices
 - Added support for MediaTek MT7615E device
 - Improved workarounds for fake CSR devices
 - Fix Bluetooth qualification test case L2CAP/COS/CFD/BV-14-C
 - Fixes for LL Privacy support
 - Enforce 16 byte encryption key size for FIPS security level
 - Added new mgmt commands for extended advertising support
 - Multiple other smaller fixes & improvements

Please let me know if there are any issues pulling. Thanks.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agonet/af_iucv: use DECLARE_SOCKADDR to cast from sockaddr
Julian Wiedmann [Mon, 7 Dec 2020 12:53:07 +0000 (13:53 +0100)]
net/af_iucv: use DECLARE_SOCKADDR to cast from sockaddr

This gets us compile-time size checking.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoMerge branch 'mlxsw-Add-support-for-Q-in-VNI'
David S. Miller [Tue, 8 Dec 2020 23:45:57 +0000 (15:45 -0800)]
Merge branch 'mlxsw-Add-support-for-Q-in-VNI'

Ido Schimmel says:

====================
mlxsw: Add support for Q-in-VNI

This patch set adds support for Q-in-VNI over Spectrum-{2,3} ASICs.
Q-in-VNI is like regular VxLAN encapsulation with the sole difference
that overlay packets can contain a VLAN tag. In Linux, this is achieved
by adding the VxLAN device to a 802.1ad bridge instead of a 802.1q
bridge.

From mlxsw perspective, Q-in-VNI support entails two main changes:

1. An outer VLAN tag should always be pushed to the overlay packet
during decapsulation

2. The EtherType used during decapsulation should be 802.1ad (0x88a8)
instead of the default 802.1q (0x8100)

Patch set overview:

Patches #1-#3 add required device registers and fields

Patch #4 performs small refactoring to allow code re-use

Patches #5-#7 make the EtherType used during decapsulation a property of
the tunnel port (i.e., VxLAN). This leads to the driver vetoing
configurations in which VxLAN devices are member in both 802.1ad and
802.1q/802.1d bridges. Will be handled in the future by determining the
overlay EtherType on the egress port instead

Patch #8 adds support for Q-in-VNI for Spectrum-2 and newer ASICs

Patches #9-#10 veto Q-in-VNI for Spectrum-1 ASICs due to some hardware
limitations. Can be worked around, but decided not to support it for now

Patch #11 adjusts mlxsw to stop vetoing addition of VXLAN devices to
802.1ad bridges

Patch #12 adds a generic forwarding test that can be used with both veth
pairs and physical ports with a loopback

Patch #13 adds a test to make sure mlxsw vetoes unsupported Q-in-VNI
configurations
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: mlxsw: Add Q-in-VNI veto tests
Amit Cohen [Tue, 8 Dec 2020 09:22:53 +0000 (11:22 +0200)]
selftests: mlxsw: Add Q-in-VNI veto tests

Add tests to ensure that the forbidden and unsupported cases are indeed
vetoed by mlxsw driver.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agoselftests: forwarding: Add Q-in-VNI test
Petr Machata [Tue, 8 Dec 2020 09:22:52 +0000 (11:22 +0200)]
selftests: forwarding: Add Q-in-VNI test

Add test to check Q-in-VNI traffic.

Signed-off-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_switchdev: Allow joining VxLAN to 802.1ad bridge
Amit Cohen [Tue, 8 Dec 2020 09:22:51 +0000 (11:22 +0200)]
mlxsw: spectrum_switchdev: Allow joining VxLAN to 802.1ad bridge

The previous patches added support for VxLAN device enslaved to 802.1ad
bridge in Spectrum-2 ASIC and vetoed it in Spectrum-1.

Do not veto VxLAN with 802.1ad bridge.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: Veto Q-in-VNI for Spectrum-1 ASIC
Amit Cohen [Tue, 8 Dec 2020 09:22:50 +0000 (11:22 +0200)]
mlxsw: Veto Q-in-VNI for Spectrum-1 ASIC

Implementation of Q-in-VNI is different between ASIC types, this set adds
support only for Spectrum-2.

Return an error when trying to create VxLAN device and enslave it to
802.1ad bridge in Spectrum-1.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 years agomlxsw: spectrum_switchdev: Use ops->vxlan_join() when adding VLAN to VxLAN device
Amit Cohen [Tue, 8 Dec 2020 09:22:49 +0000 (11:22 +0200)]
mlxsw: spectrum_switchdev: Use ops->vxlan_join() when adding VLAN to VxLAN device

Currently mlxsw_sp_switchdev_vxlan_vlan_add() always calls
mlxsw_sp_bridge_8021q_vxlan_join() because VLANs were only ever added to
a VLAN-filtering bridge, which is only 802.1q bridge.

This set adds support for VxLAN with 802.1ad bridge, so VLAN-filtering
bridge is not only 802.1q.

Call ops->vxlan_join(), so mlxsw_sp_bridge_802{1q, 1ad}_vxlan_join()
will be called according to bridge type.

This is needed to ensure that VxLAN with 802.1ad bridge will be vetoed
in Spectrum-1 with the next patch.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>