Commit Graph

19347 Commits

Author SHA1 Message Date
Quan Nguyen 183db48127 drivers: net: xgene: Correct probe sequence handling
The phy is connected at early stage of probe but not properly
disconnected if error occurs.  This patch fixes the issue.

Also changing the return type of xgene_enet_check_phy_handle(),
since this function always returns success.

Signed-off-by: Quan Nguyen <qnguyen@apm.com>
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 16:13:08 -07:00
Dan Carpenter e7562597b4 nfp: double free on error in probe
Both the nfp_net_pf_app_start() and the nfp_net_pci_probe() functions
call nfp_net_pf_app_stop_ctrl(pf) so there is a double free.  The free
should be done from the probe function because it's allocated there so
I have removed the call from nfp_net_pf_app_start().

Fixes: 02082701b9 ("nfp: create control vNICs and wire up rx/tx")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 16:07:23 -07:00
Pavel Belous 6d3f58e09f net:ethernet:aquantia: Show info message if bad firmware version detected.
We should inform user about wrong firmware version
by printing message in dmesg.

Fixes: 3d2ff7eebe26 ("net: ethernet: aquantia: Atlantic hardware abstraction layer")
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 15:11:44 -07:00
Igor Russkikh b21f502f84 net:ethernet:aquantia: Fix for multicast filter handling.
Since the HW supports up to 32 multicast filters we should
track count of multicast filters to avoid overflow.
If we attempt to add >32 multicast filter - just set NETIF_ALLMULTI flag
instead.

Fixes: 94f6c9e4cdf6 ("net: ethernet: aquantia: Support for NIC-specific code")
Signed-off-by: Igor Russkikh <Igor.Russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 15:11:44 -07:00
Pavel Belous bd8ed4415f net:ethernet:aquantia: Fix for incorrect speed index.
The driver choose the optimal interrupt throttling settings depends
of current link speed.
Due this bug link_status field from aq_hw is never updated and as result
always used same interrupt throttling values.

Fixes: 3d2ff7eebe26 ("net: ethernet: aquantia: Atlantic hardware abstraction layer")
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 15:11:44 -07:00
Pavel Belous 0a402e7b97 net:ethernet:aquantia: Workaround for HW checksum bug.
The hardware has the HW Checksum Offload bug when small
TCP patckets (with length <= 60 bytes) has wrong "checksum valid" bit.

The solution is - ignore checksum valid bit for small packets
(with length <= 60 bytes) and mark this as CHECKSUM_NONE to allow
network stack recalculate checksum itself.

Fixes: ccf9a5ed14be ("net: ethernet: aquantia: Atlantic A0 and B0 specific functions.")
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 15:11:43 -07:00
Pavel Belous 64fc7953ff net:ethernet:aquantia: Fix for number of RSS queues.
The number of RSS queues should be not more than numbers of CPU.
Its does not make sense to increase perfomance, and also cause problems on
some motherboards.

Fixes: 94f6c9e4cdf6 ("net: ethernet: aquantia: Support for NIC-specific code")
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 15:11:43 -07:00
Pavel Belous 278175aba3 net:ethernet:aquantia: Extra spinlocks removed.
This patch removes datapath spinlocks which does not perform any
useful work.

Fixes: 6e70637f9f1e ("net: ethernet: aquantia: Add ring support code")
Signed-off-by: Pavel Belous <Pavel.Belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-29 15:11:43 -07:00
Stefano Brivio 0f3086868e cxgb4: Fix stack out-of-bounds read due to wrong size to t4_record_mbox()
Passing commands for logging to t4_record_mbox() with size
MBOX_LEN, when the actual command size is actually smaller,
causes out-of-bounds stack accesses in t4_record_mbox() while
copying command words here:

	for (i = 0; i < size / 8; i++)
		entry->cmd[i] = be64_to_cpu(cmd[i]);

Up to 48 bytes from the stack are then leaked to debugfs.

This happens whenever we send (and log) commands described by
structs fw_sched_cmd (32 bytes leaked), fw_vi_rxmode_cmd (48),
fw_hello_cmd (48), fw_bye_cmd (48), fw_initialize_cmd (48),
fw_reset_cmd (48), fw_pfvf_cmd (32), fw_eq_eth_cmd (16),
fw_eq_ctrl_cmd (32), fw_eq_ofld_cmd (32), fw_acl_mac_cmd(16),
fw_rss_glb_config_cmd(32), fw_rss_vi_config_cmd(32),
fw_devlog_cmd(32), fw_vi_enable_cmd(48), fw_port_cmd(32),
fw_sched_cmd(32), fw_devlog_cmd(32).

The cxgb4vf driver got this right instead.

When we call t4_record_mbox() to log a command reply, a MBOX_LEN
size can be used though, as get_mbox_rpl() will fill cmd_rpl up
completely.

Fixes: 7f080c3f2f ("cxgb4: Add support to enable logging of firmware mailbox commands")
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-28 15:24:23 -07:00
Maxime Ripard ad4540cc5a net: stmmac: sun8i: Remove the compatibles
Since the bindings have been controversial, and we follow the DT stable ABI
rule, we shouldn't let a driver with a DT binding that might change slip
through in a stable release.

Remove the compatibles to make sure the driver will not probe and no-one
will start using the binding currently implemented. This commit will
obviously need to be reverted in due time.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-28 15:22:42 -07:00
Pieter Jansen van Vuuren 6afd33e438 nfp: remove incorrect mask check for vlan matching
Previously the vlan tci field was incorrectly exact matched. This patch
fixes this by using the flow dissector to populate the vlan tci field.

Fixes: 5571e8c9f2 ("nfp: extend flower matching capabilities")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-28 15:20:24 -07:00
Pieter Jansen van Vuuren 74af597510 nfp: fix supported key layers calculation
Previously when calculating the supported key layers MPLS, IPv4/6
TTL and TOS were not considered. This patch checks that the TTL and
TOS fields are masked out before offloading. Additionally this patch
checks that MPLS packets are correctly handled, by not offloading them.

Fixes: af9d842c13 ("nfp: extend flower add flow offload")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-28 15:20:24 -07:00
Pieter Jansen van Vuuren a7cd39e0c7 nfp: fix unchecked flow dissector use
Previously flow dissectors were referenced without first checking that
they are in use and correctly populated by TC. This patch fixes this by
checking each flow dissector key before referencing them.

Fixes: 5571e8c9f2 ("nfp: extend flower matching capabilities")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-28 15:20:24 -07:00
Antoine Tenart 4c22868264 net: mvpp2: fix the mac address used when using PPv2.2
The mac address is only retrieved from h/w when using PPv2.1. Otherwise
the variable holding it is still checked and used if it contains a valid
value. As the variable isn't initialized to an invalid mac address
value, we end up with random mac addresses which can be the same for all
the ports handled by this PPv2 driver.

Fixes this by initializing the h/w mac address variable to {0}, which is
an invalid mac address value. This way the random assignation fallback
is called and all ports end up with their own addresses.

Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Fixes: 2697582144 ("net: mvpp2: handle misc PPv2.1/PPv2.2 differences")
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-28 11:24:52 -07:00
Christophe Jaillet 2207d182c1 net: sxgbe: check memory allocation failure
Check memory allocation failure and return -ENOMEM in such a case, as
already done few lines below for another memory allocation.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-25 20:07:07 -07:00
Florian Fainelli 7a4b813cb7 r8169: Be drop monitor friendly
rtl_tx() is the TX reclamation process whereas rtl8169_tx_clear_range() does
the TX ring cleaning during shutdown, both of these functions should call
dev_consume_skb_any() to be drop monitor friendly.

Fixes: cac4b22f3d ("r8169: do not account fragments as packets")
Fixes: eb78139790 ("r8169: Do not use dev_kfree_skb in xmit path")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-25 19:13:27 -07:00
Florian Fainelli 1089650d88 r8169: Do not increment tx_dropped in TX ring cleaning
rtl8169_tx_clear_range() is responsible for cleaning up the TX ring
during interface shutdown, incrementing tx_dropped for every SKB that we
left at the time in the ring is misleading.

Fixes: cac4b22f3d ("r8169: do not account fragments as packets")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-25 19:13:27 -07:00
Florian Fainelli c2062ee3d9 net: systemport: Free DMA coherent descriptors on errors
In case bcm_sysport_init_tx_ring() is not able to allocate ring->cbs, we
would return with an error, and call bcm_sysport_fini_tx_ring() and it
would see that ring->cbs is NULL and do nothing. This would leak the
coherent DMA descriptor area, so we need to free it on error before
returning.

Reported-by: Eric Dumazet <edumazet@gmail.com>
Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-24 18:23:21 -07:00
Florian Fainelli d4fec85590 net: bcmgenet: Be drop monitor friendly
There are 3 spots where we call dev_kfree_skb() but we are actually
just doing a normal SKB consumption: __bcmgenet_tx_reclaim() for normal
TX reclamation, bcmgenet_alloc_rx_buffers() during the initial RX ring
setup and bcmgenet_free_rx_buffers() during RX ring cleanup.

Fixes: d6707bec59 ("net: bcmgenet: rewrite bcmgenet_rx_refill()")
Fixes: f48bed16a7 ("net: bcmgenet: Free skb after last Tx frag")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-24 18:23:20 -07:00
Florian Fainelli c45182eb96 net: systemport: Be drop monitor friendly
Utilize dev_consume_skb_any(cb->skb) in bcm_sysport_free_cb() which is
used when a TX packet is completed, as well as when the RX ring is
cleaned on shutdown. None of these two cases are packet drops, so be
drop monitor friendly.

Suggested-by: Eric Dumazet <edumazet@gmail.com>
Fixes: 80105befdb ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-24 18:23:20 -07:00
Arnd Bergmann e58f95831e qlge: avoid memcpy buffer overflow
gcc-8.0.0 (snapshot) points out that we copy a variable-length string
into a fixed length field using memcpy() with the destination length,
and that ends up copying whatever follows the string:

    inlined from 'ql_core_dump' at drivers/net/ethernet/qlogic/qlge/qlge_dbg.c:1106:2:
drivers/net/ethernet/qlogic/qlge/qlge_dbg.c:708:2: error: 'memcpy' reading 15 bytes from a region of size 14 [-Werror=stringop-overflow=]
  memcpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1);

Changing it to use strncpy() will instead zero-pad the destination,
which seems to be the right thing to do here.

The bug is probably harmless, but it seems like a good idea to address
it in stable kernels as well, if only for the purpose of building with
gcc-8 without warnings.

Fixes: a61f802613 ("qlge: Add ethtool register dump function.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-24 14:00:57 -07:00
Michael Chan a22a6ac2ff bnxt_en: Do not setup MAC address in bnxt_hwrm_func_qcaps().
bnxt_hwrm_func_qcaps() is called during probe to get all device
resources and it also sets up the factory MAC address.  The same function
is called when SRIOV is disabled to reclaim all resources.  If
the MAC address has been overridden by a user administered MAC
address, calling this function will overwrite it.

Separate the logic that sets up the default MAC address into a new
function bnxt_init_mac_addr() that is only called during probe time.

Fixes: 4a21b49b34 ("bnxt_en: Improve VF resource accounting.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 22:42:43 -07:00
Michael Chan 146ed3c5b8 bnxt_en: Free MSIX vectors when unregistering the device from bnxt_re.
Take back ownership of the MSIX vectors when unregistering the device
from bnxt_re.

Fixes: a588e4580a ("bnxt_en: Add interface to support RDMA driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 22:42:42 -07:00
Michael Chan 87e9b3778c bnxt_en: Fix .ndo_setup_tc() to include XDP rings.
When the number of TX rings is changed in bnxt_setup_tc(), we need to
include the XDP rings in the total TX ring count.

Fixes: 3841340627 ("bnxt_en: Add support for XDP_TX action.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 22:42:42 -07:00
Jakub Kicinski 46f1c52e66 nfp: TX time stamp packets before HW doorbell is rung
TX completion may happen any time after HW queue was kicked.
We can't access the skb afterwards.  Move the time stamping
before ringing the doorbell.

Fixes: 4c3523623d ("net: add driver for Netronome NFP4000/NFP6000 NIC VFs")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 22:40:49 -07:00
Jakub Kicinski 1691a4c0f4 nfp: avoid buffer leak when representor is missing
When driver receives a muxed frame, but it can't find the representor
netdev it is destined to it will try to "drop" that frame, i.e. reuse
the buffer.  The issue is that the replacement buffer has already been
allocated at this point, and reusing the buffer from received frame
will leak it.  Change the code to put the new buffer on the ring
earlier and not reuse the old buffer (make the buffer parameter
to nfp_net_rx_drop() a NULL).

Fixes: 91bf82ca9e ("nfp: add support for tx/rx with metadata portid")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 20:39:44 -07:00
Jakub Kicinski 326ce60301 nfp: make sure representors are destroyed before their lower netdev
App start/stop callbacks can perform application initialization.
Unfortunately, flower app started using them for creating and
destroying representors.  This can lead to a situation where
lower vNIC netdev is destroyed while representors still try
to pass traffic.  This will most likely lead to a NULL-dereference
on the lower netdev TX path.

Move the start/stop callbacks, so that representors are created/
destroyed when vNICs are fully initialized.

Fixes: 5de73ee467 ("nfp: general representor implementation")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 20:39:44 -07:00
Jakub Kicinski d6e1ab9ea3 nfp: don't hold PF lock while enabling SR-IOV
Enabling SR-IOV VFs will cause the PCI subsystem to schedule a
work and flush its workqueue.  Since the nfp driver schedules its
own work we can't enable VFs while holding driver load.  Commit
6d48ceb27a ("nfp: allocate a private workqueue for driver work")
tried to avoid this deadlock by creating a separate workqueue.
Unfortunately, due to the architecture of workqueue subsystem this
does not guarantee a separate thread of execution.  Luckily
we can simply take pci_enable_sriov() from under the driver lock.

Take pci_disable_sriov() from under the lock too for symmetry.

Fixes: 6d48ceb27a ("nfp: allocate a private workqueue for driver work")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 20:39:44 -07:00
Stephan Gatzka 013dae5dbc net: stmmac: socfgpa: Ensure emac bit set in sys manager for MII/GMII/SGMII.
When using MII/GMII/SGMII in the Altera SoC, the phy needs to be
wired through the FPGA. To ensure correct behavior, the appropriate
bit in the System Manager FPGA Interface Group register needs to be
set.

Signed-off-by: Stephan Gatzka <stephan.gatzka@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-23 20:26:58 -07:00
Florian Fainelli a1a50c8e4c fsl/man: Inherit parent device and of_node
Junote Cai reported that he was not able to get a DSA setup involving the
Freescale DPAA/FMAN driver to work and narrowed it down to
of_find_net_device_by_node(). This function requires the network device's
device reference to be correctly set which is the case here, though we have
lost any device_node association there.

The problem is that dpaa_eth_add_device() allocates a "dpaa-ethernet" platform
device, and later on dpaa_eth_probe() is called but SET_NETDEV_DEV() won't be
propagating &pdev->dev.of_node properly. Fix this by inherenting both the parent
device and the of_node when dpaa_eth_add_device() creates the platform device.

Fixes: 3933961682 ("fsl/fman: Add FMan MAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22 16:32:08 -07:00
Nogah Frankel 4eb6a3bdb4 mlxsw: spectrum_switchdev: Fix mrouter flag update
Update the value of the mrouter flag in struct mlxsw_sp_bridge_port when
it is being changed.

Fixes: c57529e1d5 ("mlxsw: spectrum: Replace vPorts with Port-VLAN")
Signed-off-by: Nogah Frankel <nogahf@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22 14:22:54 -07:00
Andrew Jeffery 5160a153a0 net: ftgmac100: Fix oops in probe on failure to find associated PHY
netif_napi_del() should be paired with netif_napi_add(), however no
such call takes place in ftgmac100_probe(). This triggers a NULL
pointer dereference if e.g. no PHY is found by the MDIO probe:

	 [ 2.770000] libphy: Fixed MDIO Bus: probed
	 [ 2.770000] ftgmac100 1e660000.ethernet: Generated random MAC address 66:58:c0:5a:50:b8
	 [ 2.790000] libphy: ftgmac100_mdio: probed
	 [ 2.790000] ftgmac100 1e660000.ethernet (unnamed net_device) (uninitialized): eth%d: no PHY found
	 [ 2.790000] ftgmac100 1e660000.ethernet: MII Probe failed!
	 [ 2.810000] Unable to handle kernel NULL pointer dereference at virtual address 00000004
	 [ 2.810000] pgd = 80004000
	 [ 2.810000] [00000004] *pgd=00000000
	 [ 2.810000] Internal error: Oops: 805 [#1] ARM
	 [ 2.810000] CPU: 0 PID: 1 Comm: swapper Not tainted 4.10.17-1a4df30c39cf5ee0e3d2528c409787ccbb4a672a #1
	 [ 2.810000] Hardware name: ASpeed SoC
	 [ 2.810000] task: 9e421b60 task.stack: 9e4a0000
	 [ 2.810000] PC is at netif_napi_del+0x74/0xa4
	 [ 2.810000] LR is at ftgmac100_probe+0x290/0x674
	 [ 2.810000] pc : [<80331004>] lr : [<80292b30>] psr: 60000013
	 [ 2.810000] sp : 9e4a1d70 ip : 9e4a1d88 fp : 9e4a1d84
	 [ 2.810000] r10: 9e565000 r9 : ffffffed r8 : 00000007
	 [ 2.810000] r7 : 9e565480 r6 : 9ec072c0 r5 : 00000000 r4 : 9e5654d8
	 [ 2.810000] r3 : 9e565530 r2 : 00000000 r1 : 00000000 r0 : 9e5654d8
	 [ 2.810000] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
	 [ 2.810000] Control: 00c5387d Table: 80004008 DAC: 00000055
	 [ 2.810000] Process swapper (pid: 1, stack limit = 0x9e4a0188)
	 [ 2.810000] Stack: (0x9e4a1d70 to 0x9e4a2000)
	 [ 2.810000] 1d60: 9e565000 9e549e10 9e4a1dcc 9e4a1d88
	 [ 2.810000] 1d80: 80292b30 80330f9c ffffffff 9e4a1d98 80146058 9ec072c0 00009e10 00000000
	 [ 2.810000] 1da0: 9e549e18 9e549e10 ffffffed 805f81f4 fffffdfb 00000000 00000000 00000000
	 [ 2.810000] 1dc0: 9e4a1dec 9e4a1dd0 80243df8 802928ac 9e549e10 8062cbd8 8062cbe0 805f81f4
	 [ 2.810000] 1de0: 9e4a1e24 9e4a1df0 80242178 80243da4 803001d0 802ffa60 9e4a1e24 9e549e10
	 [ 2.810000] 1e00: 9e549e44 805f81f4 00000000 00000000 805b8840 8058a6b0 9e4a1e44 9e4a1e28
	 [ 2.810000] 1e20: 80242434 80241f04 00000000 805f81f4 80242344 00000000 9e4a1e6c 9e4a1e48
	 [ 2.810000] 1e40: 80240148 80242350 9e425bac 9e4fdc90 9e790e94 805f81f4 9e790e60 805f5640
	 [ 2.810000] 1e60: 9e4a1e7c 9e4a1e70 802425dc 802400d8 9e4a1ea4 9e4a1e80 80240ba8 802425c0
	 [ 2.810000] 1e80: 8050b6ac 9e4a1e90 805f81f4 ffffe000 805b8838 80616720 9e4a1ebc 9e4a1ea8
	 [ 2.810000] 1ea0: 80243068 80240a68 805ab24c ffffe000 9e4a1ecc 9e4a1ec0 80244a38 80242fec
	 [ 2.810000] 1ec0: 9e4a1edc 9e4a1ed0 805ab264 80244a04 9e4a1f4c 9e4a1ee0 8058ae70 805ab258
	 [ 2.810000] 1ee0: 80032c68 801e3fd8 8052f800 8041af2c 9e4a1f4c 9e4a1f00 80032f90 8058a6bc
	 [ 2.810000] 1f00: 9e4a1f2c 9e4a1f10 00000006 00000006 00000000 8052f220 805112f0 00000000
	 [ 2.810000] 1f20: 9e4a1f4c 00000006 80616720 805cf400 80616720 805b8838 80616720 00000057
	 [ 2.810000] 1f40: 9e4a1f94 9e4a1f50 8058b040 8058add0 00000006 00000006 00000000 8058a6b0
	 [ 2.810000] 1f60: 3940bf3d 00000007 f115c2e8 00000000 803fd158 00000000 00000000 00000000
	 [ 2.810000] 1f80: 00000000 00000000 9e4a1fac 9e4a1f98 803fd170 8058af38 00000000 803fd158
	 [ 2.810000] 1fa0: 00000000 9e4a1fb0 8000a5e8 803fd164 00000000 00000000 00000000 00000000
	 [ 2.810000] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
	 [ 2.810000] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 d11dcae8 af8ddec5
	 [ 2.810000] [<80331004>] (netif_napi_del) from [<80292b30>] (ftgmac100_probe+0x290/0x674)
	 [ 2.810000] [<80292b30>] (ftgmac100_probe) from [<80243df8>] (platform_drv_probe+0x60/0xc0)
	 [ 2.810000] [<80243df8>] (platform_drv_probe) from [<80242178>] (driver_probe_device+0x280/0x44c)
	 [ 2.810000] [<80242178>] (driver_probe_device) from [<80242434>] (__driver_attach+0xf0/0x104)
	 [ 2.810000] [<80242434>] (__driver_attach) from [<80240148>] (bus_for_each_dev+0x7c/0xb0)
	 [ 2.810000] [<80240148>] (bus_for_each_dev) from [<802425dc>] (driver_attach+0x28/0x30)
	 [ 2.810000] [<802425dc>] (driver_attach) from [<80240ba8>] (bus_add_driver+0x14c/0x268)
	 [ 2.810000] [<80240ba8>] (bus_add_driver) from [<80243068>] (driver_register+0x88/0x104)
	 [ 2.810000] [<80243068>] (driver_register) from [<80244a38>] (__platform_driver_register+0x40/0x54)
	 [ 2.810000] [<80244a38>] (__platform_driver_register) from [<805ab264>] (ftgmac100_driver_init+0x18/0x20)
	 [ 2.810000] [<805ab264>] (ftgmac100_driver_init) from [<8058ae70>] (do_one_initcall+0xac/0x168)
	 [ 2.810000] [<8058ae70>] (do_one_initcall) from [<8058b040>] (kernel_init_freeable+0x114/0x1cc)
	 [ 2.810000] [<8058b040>] (kernel_init_freeable) from [<803fd170>] (kernel_init+0x18/0x104)
	 [ 2.810000] [<803fd170>] (kernel_init) from [<8000a5e8>] (ret_from_fork+0x14/0x2c)
	 [ 2.810000] Code: e594205c e5941058 e2843058 e3a05000 (e5812004)
	 [ 3.210000] ---[ end trace f32811052fd3860c ]---

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-22 14:17:47 -07:00
Huy Nguyen ca3d89a3eb net/mlx4_core: Enable 4K UAR if SRIOV module parameter is not enabled
enable_4k_uar module parameter was added in patch cited below to
address the backward compatibility issue in SRIOV when the VM has
system's PAGE_SIZE uar implementation and the Hypervisor has 4k uar
implementation.

The above compatibility issue does not exist in the non SRIOV case.
In this patch, we always enable 4k uar implementation if SRIOV
is not enabled on mlx4's supported cards.

Fixes: 76e39ccf9c ("net/mlx4_core: Fix backward compatibility on VFs")
Signed-off-by: Huy Nguyen <huyn@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-18 16:15:37 -07:00
Colin Ian King a120d9ab65 netxen: fix incorrect loop counter decrement
The loop counter k is currently being decremented from zero which
is incorrect. Fix this by incrementing k instead

Detected by CoverityScan, CID#401847 ("Infinite loop")

Fixes: 83f18a557c ("netxen_nic: fw dump support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-18 10:58:33 -07:00
Colin Ian King eac2c68d66 nfp: fix infinite loop on umapping cleanup
The while loop that performs the dma page unmapping never decrements
index counter f and hence loops forever. Fix this with a pre-decrement
on f.

Detected by CoverityScan, CID#1357309 ("Infinite loop")

Fixes: 4c3523623d ("net: add driver for Netronome NFP4000/NFP6000 NIC VFs")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-18 10:28:06 -07:00
Bert Kenward 61deee9628 sfc: don't try and read ef10 data on non-ef10 NIC
The MAC stats command takes a port ID, which doesn't exist on
pre-ef10 NICs (5000- and 6000- series). This is extracted from the
NIC specific data; we misinterpret this as the ef10 data structure,
causing us to read potentially unallocated data. With a KASAN kernel
this can cause errors with:
   BUG: KASAN: slab-out-of-bounds in efx_mcdi_mac_stats

Fixes: 0a2ab4d988 ("sfc: set the port-id when calling MC_CMD_MAC_STATS")
Reported-by: Stefano Brivio <sbrivio@redhat.com>
Tested-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-15 17:19:34 -07:00
Casey Leedom b629276df7 net/cxgb4vf: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag
cxgb4vf Ethernet driver now queries PCIe configuration space to
determine if it can send TLPs to it with the Relaxed Ordering
Attribute set, just like the pf did.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Reviewed-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-14 22:14:51 -07:00
Casey Leedom b0ba9d5fde net/cxgb4: Use new PCI_DEV_FLAGS_NO_RELAXED_ORDERING flag
cxgb4 Ethernet driver now queries PCIe configuration space to determine
if it can send TLPs to it with the Relaxed Ordering Attribute set.

Remove the enable_pcie_relaxed_ordering() to avoid enable PCIe Capability
Device Control[Relaxed Ordering Enable] at probe routine, to make sure
the driver will not send the Relaxed Ordering TLPs to the Root Complex which
could not deal the Relaxed Ordering TLPs.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Reviewed-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-14 22:14:51 -07:00
Simon Horman bb3afda4fc nfp: do not update MTU from BH in flower app
The Flower app may receive a request to update the MTU of a representor
netdev upon receipt of a control message from the firmware. This requires
the RTNL lock which needs to be taken outside of the packet processing
path.

As a handling of this correctly seems a little to invasive for a fix simply
skip setting the MTU for now.

Relevant backtrace:
 [ 1496.288489] BUG: scheduling while atomic: kworker/0:3/373/0x00000100
 [ 1496.294911]  dca syscopyarea sysfillrect sysimgblt fb_sys_fops ptp drm mxm_wmi ahci pps_core libahci i2c_algo_bit wmi [last unloaded: nfp]
 [ 1496.294918] CPU: 0 PID: 373 Comm: kworker/0:3 Tainted: G           OE   4.13.0-rc3+ #3
 [ 1496.294919] Hardware name: Supermicro X10DRi/X10DRi, BIOS 2.0 12/28/2015
 [ 1496.294923] Workqueue: events work_for_cpu_fn
 [ 1496.294924] Call Trace:
 [ 1496.294927]  <IRQ>
 [ 1496.294931]  dump_stack+0x63/0x82
 [ 1496.294935]  __schedule_bug+0x54/0x70
 [ 1496.294937]  __schedule+0x62f/0x890
 [ 1496.294941]  ? intel_unmap_sg+0x90/0x90
 [ 1496.294942]  schedule+0x36/0x80
 [ 1496.294943]  schedule_preempt_disabled+0xe/0x10
 [ 1496.294945]  __mutex_lock.isra.2+0x445/0x4a0
 [ 1496.294947]  ? device_is_rmrr_locked+0x12/0x50
 [ 1496.294950]  ? kfree+0x162/0x170
 [ 1496.294952]  ? device_is_rmrr_locked+0x12/0x50
 [ 1496.294953]  ? iommu_should_identity_map+0x50/0xe0
 [ 1496.294954]  __mutex_lock_slowpath+0x13/0x20
 [ 1496.294955]  ? iommu_no_mapping+0x48/0xd0
 [ 1496.294956]  ? __mutex_lock_slowpath+0x13/0x20
 [ 1496.294957]  mutex_lock+0x2f/0x40
 [ 1496.294960]  rtnl_lock+0x15/0x20
 [ 1496.294979]  nfp_flower_cmsg_rx+0xc8/0x150 [nfp]
 [ 1496.294986]  nfp_ctrl_poll+0x286/0x350 [nfp]
 [ 1496.294989]  tasklet_action+0xf6/0x110
 [ 1496.294992]  __do_softirq+0xed/0x278
 [ 1496.294993]  irq_exit+0xb6/0xc0
 [ 1496.294994]  do_IRQ+0x4f/0xd0
 [ 1496.294996]  common_interrupt+0x89/0x89

Fixes: 948faa46c0 ("nfp: add support for control messages for flower app")
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11 14:50:09 -07:00
Romain Perier fbca164776 net: stmmac: Use the right logging function in stmmac_mdio_register
Currently, the function stmmac_mdio_register() is only used by
stmmac_dvr_probe() from stmmac_main.c, in order to register the MDIO bus
and probe information about the PHY. As this function is called before
calling register_netdev(), all messages logged from stmmac_mdio_register
are prefixed by "(unnamed net_device)". The goal of netdev_info or
netdev_err is to dump useful infos about a net_device, when this data
structure is partially initialized, there is no point for using these
functions.

This commit fixes the issue by replacing all netdev_*() by the
corresponding dev_*() function for logging. The last netdev_info is
replaced by phy_attached_info(), as a valid phydev can be used at this
point.

Signed-off-by: Romain Perier <romain.perier@collabora.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-11 14:38:55 -07:00
Florian Fainelli 50ddfbafcd net: systemport: Fix software statistics for SYSTEMPORT Lite
With SYSTEMPORT Lite we have holes in our statistics layout that make us
skip over the hardware MIB counters, bcm_sysport_get_stats() was not
taking that into account resulting in reporting 0 for all SW-maintained
statistics, fix this by skipping accordingly.

Fixes: 44a4524c54 ("net: systemport: Add support for SYSTEMPORT Lite")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-09 22:39:17 -07:00
Davide Caratti e718fe450e net/mlx4_en: don't set CHECKSUM_COMPLETE on SCTP packets
if the NIC fails to validate the checksum on TCP/UDP, and validation of IP
checksum is successful, the driver subtracts the pseudo-header checksum
from the value obtained by the hardware and sets CHECKSUM_COMPLETE. Don't
do that if protocol is IPPROTO_SCTP, otherwise CRC32c validation fails.

V2: don't test MLX4_CQE_STATUS_IPV6 if MLX4_CQE_STATUS_IPV4 is set

Reported-by: Shuang Li <shuali@redhat.com>
Fixes: f8c6455bb0 ("net/mlx4_en: Extend checksum offloading by CHECKSUM COMPLETE")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-08 17:59:57 -07:00
Christophe Jaillet eb2a6b800c qed: Fix a memory allocation failure test in 'qed_mcp_cmd_init()'
We allocate 'p_info->mfw_mb_cur' and 'p_info->mfw_mb_shadow' but we check
'p_info->mfw_mb_addr' instead of 'p_info->mfw_mb_cur'.

'p_info->mfw_mb_addr' is never 0, because it is initiliazed a few lines
above in 'qed_load_mcp_offsets()'.

Update the test and check the result of the 2 'kzalloc()' instead.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07 14:56:15 -07:00
Thomas Bogendoerfer aaf83aecd2 xgene: Always get clk source, but ignore if it's missing for SGMII ports
Even the driver doesn't do anything with the clk source for SGMII
ports it needs to be enabled by doing a devm_clk_get(), if there is
a clk source in DT.

Fixes: 0db01097ca ('xgene: Don't fail probe, if there is no clk resource for SGMII interfaces')
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Tested-by: Laura Abbott <labbott@redhat.com>
Acked-by: Iyappan Subramanian <isubramanian@apm.com>
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04 11:30:37 -07:00
Ido Schimmel 852cfeed0e mlxsw: spectrum_switchdev: Release multicast groups during fini
Each multicast group (MID) stores a bitmap of ports to which a packet
should be forwarded to in case an MDB entry associated with the MID is
hit.

Since the initial introduction of IGMP snooping in commit 3a49b4fde2
("mlxsw: Adding layer 2 multicast support") the driver didn't correctly
free these multicast groups upon ungraceful situations such as the
removal of the upper bridge device or module removal.

The correct way to fix this is to associate each MID with the bridge
ports member in it and then drop the reference in case the bridge port
is destroyed, but this will result in a lot more code and will be fixed
in net-next.

For now, upon module removal, traverse the MID list and release each
one.

Fixes: 3a49b4fde2 ("mlxsw: Adding layer 2 multicast support")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04 11:15:07 -07:00
Ido Schimmel 17b334a876 mlxsw: spectrum_switchdev: Don't warn about valid situations
Some operations in the bridge driver such as MDB deletion are preformed
in an atomic context and thus deferred to a process context by the
switchdev infrastructure.

Therefore, by the time the operation is performed by the underlying
device driver it's possible the bridge port context is already gone.
This is especially true for removal flows, but theoretically can also be
invoked during addition.

Remove the warnings in such situations and return normally.

Fixes: c57529e1d5 ("mlxsw: spectrum: Replace vPorts with Port-VLAN")
Fixes: 3922285d96 ("net: bridge: Add support for offloading port attributes")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04 11:15:07 -07:00
Thomas Falcon 4d96f12a07 ibmvnic: Initialize SCRQ's during login renegotiation
SCRQ resources are freed during renegotiation, but they are not
re-allocated afterwards due to some changes in the initialization
process. Fix that by re-allocating the memory after renegotation.

SCRQ's can also be freed if a server capabilities request fails.
If this were encountered during a device reset for example,
SCRQ's may not be re-allocated. This operation is not necessary
anymore so remove it.

Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:47:45 -07:00
Jack Morgenstein bff0c6840c net/mlx4_core: Fixes missing capability bit in flags2 capability dump
The cited commit introduced the following new enum value in file
include/linux/mlx4/device.h:

    QUERY_DEV_CAP_DIAG_RPRT_PER_PORT

However, it failed to introduce a corresponding entry in function
dump_dev_cap_flags2() for outputting a line in the message log
when this capability bit is set.

The change here fixes that omission.

Fixes: c7c122ed67 ("net/mlx4: Add diagnostic counters capability bit")
Reported-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:44:09 -07:00
Jack Morgenstein f9fb9d0b85 net/mlx4_core: Fix namespace misalignment in QinQ VST support commit
The cited commit introduced the following new enum value in file
include/linux/mlx4/device.h:

    MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP

However the value of MLX4_DEV_CAP_FLAG2_SVLAN_BY_QP needs to stay
consistent with the value used in another namespace in
function dump_dev_cap_flags2(), which is manually kept in sync.
The change here restores that consistency.

Fixes: 7c3d21c815 ("net/mlx4_core: Preparation for VF vlan protocol 802.1ad")
Reported-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:44:09 -07:00
Jack Morgenstein 5886259c12 net/mlx4_core: Fix sl_to_vl_change bit offset in flags2 dump
The index value in function dump_dev_cap_flags2() for outputting
"sl to vl mapping table change event support" needs to be
consistent with the value of the enumerated constant
MLX4_DEV_CAP_FLAG2_SL_TO_VL_CHANGE_EVENT defined in file
include/linux/mlx4_device.h

The change here restores that consistency.

Fixes: fd10ed8e6f ("IB/mlx4: Fix possible vl/sl field mismatch in LRH header in QP1 packets")
Reported-by: Mukesh Kacker <mukesh.kacker@oracle.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-02 10:44:09 -07:00