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Change DMA descriptor length to handle jumbo frames beyond 8192 bytes.
Also update jumbo frame max size to include FCS, the DMA packet length
received includes FCS.
Signed-off-by: Murali Krishna Policharla <murali.policharla@broadcom.com>
Reviewed-by: Arun Parameswaran <arun.parameswaran@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert suitable drivers to use new helper phy_do_ioctl_running.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Timur Tabi <timur@kernel.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for unifying the skb_frag and bio_vec, use the fine
accessors which already exist and use skb_frag_t instead of
struct skb_frag_struct.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All users of the fixed_phy_add() pass -1 as GPIO number
to the fixed phy driver, and all users of fixed_phy_register()
pass -1 as GPIO number as well, except for the device
tree MDIO bus.
Any new users should create a proper device and pass the
GPIO as a descriptor associated with the device so delete
the GPIO argument from the calls and drop the code looking
requesting a GPIO in fixed_phy_add().
In fixed phy_register(), investigate the "fixed-link"
node and pick the GPIO descriptor from "link-gpios" if
this property exists. Move the corresponding code out
of of_mdio.c as the fixed phy code anyways requires
OF to be in use.
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We already need to zero out memory for dma_alloc_coherent(), as such
using dma_zalloc_coherent() is superflous. Phase it out.
This change was generated with the following Coccinelle SmPL patch:
@ replace_dma_zalloc_coherent @
expression dev, size, data, handle, flags;
@@
-dma_zalloc_coherent(dev, size, handle, flags)
+dma_alloc_coherent(dev, size, handle, flags)
Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
[hch: re-ran the script on the latest tree]
Signed-off-by: Christoph Hellwig <hch@lst.de>
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Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/broadcom/bgmac.c: In function 'bgmac_dma_alloc':
drivers/net/ethernet/broadcom/bgmac.c:619:6: warning:
variable 'err' set but not used [-Wunused-but-set-variable]
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Variable 'freed' is being assigned but is never used hence it is
redundant and can be removed.
Cleans up clang warning:
warning: variable 'freed' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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bgmac_dma_tx_ring_free() assigns the ctl1 word which is a litle endian
32-bit word without using proper accessors, fix this, and because a
length cannot be negative, use unsigned int while at it.
Fixes: 9cde94506eac ("bgmac: implement scatter/gather support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We can have interrupts left enabled form e.g: the bootloader which used
the network device for network boot. Make sure we have those disabled as
early as possible to avoid spurious interrupts.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When the system contains several BGMAC adapters, it is nice to be able
to tell which one is which by looking at /proc/interrupts. Use the
network device name as a name to request_irq() with.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DSA now correctly pads short packets within net/dsa/tag_brcm.c such that
this it is no longer necessary to do this within bgmac.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for enabling Broadcom tags with b53, pad packets to a
minimum size of 64 bytes (sans FCS) in order for the Broadcom switch to
accept ingressing frames. Without this, we would typically be able to
DHCP, but not resolve with ARP because packets are too small and get
rejected by the switch.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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IDM operations are usually one time ops and should be done in
firmware itself. Driver is not supposed to touch IDM registers.
However, for some SoCs', driver is performing IDM read/writes.
So this patch masks IDM operations in case firmware is taking
care of IDM operations.
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Reviewed-by: Oza Oza <oza.oza@broadcom.com>
Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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These files all use functions declared in interrupt.h, but currently rely
on implicit inclusion of this file (via netns/xfrm.h).
That won't work anymore when the flow cache is removed so include that
header where needed.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement suspend/resume callbacks in the bgmac driver. This makes sure
that we de-initialize and re-initialize the hardware correctly before
entering suspend and when resuming.
Signed-off-by: Joey Zhong <zhongx@broadcom.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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ndo_set_mac_address() passes struct sockaddr * as 2nd parameter to
bgmac_set_mac_address() but code assumed u8 *. This caused two bytes
chopping and the wrong mac address was configured.
Signed-off-by: Hari Vyas <hariv@broadcom.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Fixes: 4e209001b86 ("bgmac: write mac address to hardware in ndo_set_mac_address")
Signed-off-by: David S. Miller <davem@davemloft.net>
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After commit 34a5102c3235 ("net: bgmac: allocate struct bgmac just once
& don't copy it") the mac_addr member of struct bgmac is no longer
necessary to pass the MAC address to bgmac_enet_probe(). Instead it can
directly be stored in netdev->dev_addr.
Also use eth_hw_addr_random() instead of eth_random_addr() in case a
random MAC is nedded. This will make sure netdev->addr_assign_type will
be properly set.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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drivers/net/ethernet/broadcom/bgmac.c:1015:17: error: dereferencing pointer to incomplete type 'struct mii_bus'
drivers/net/ethernet/broadcom/bgmac.c:1185:2: error: implicit declaration of function 'phy_start' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1198:2: error: implicit declaration of function 'phy_stop' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1239:9: error: implicit declaration of function 'phy_mii_ioctl' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1389:28: error: 'phy_ethtool_get_link_ksettings' undeclared here (not in a function)
drivers/net/ethernet/broadcom/bgmac.c:1390:28: error: 'phy_ethtool_set_link_ksettings' undeclared here (not in a function)
drivers/net/ethernet/broadcom/bgmac.c:1403:13: error: dereferencing pointer to incomplete type 'struct phy_device'
drivers/net/ethernet/broadcom/bgmac.c:1417:3: error: implicit declaration of function 'phy_print_status' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1424:26: error: storage size of 'fphy_status' isn't known
drivers/net/ethernet/broadcom/bgmac.c:1424:9: error: variable 'fphy_status' has initializer but incomplete type
drivers/net/ethernet/broadcom/bgmac.c:1425:11: warning: excess elements in struct initializer
drivers/net/ethernet/broadcom/bgmac.c:1425:3: error: unknown field 'link' specified in initializer
drivers/net/ethernet/broadcom/bgmac.c:1426:12: note: in expansion of macro 'SPEED_1000'
drivers/net/ethernet/broadcom/bgmac.c:1426:3: error: unknown field 'speed' specified in initializer
drivers/net/ethernet/broadcom/bgmac.c:1427:13: note: in expansion of macro 'DUPLEX_FULL'
drivers/net/ethernet/broadcom/bgmac.c:1427:3: error: unknown field 'duplex' specified in initializer
drivers/net/ethernet/broadcom/bgmac.c:1432:12: error: implicit declaration of function 'fixed_phy_register' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1432:31: error: 'PHY_POLL' undeclared (first use in this function)
drivers/net/ethernet/broadcom/bgmac.c:1438:8: error: implicit declaration of function 'phy_connect_direct' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1439:6: error: 'PHY_INTERFACE_MODE_MII' undeclared (first use in this function)
drivers/net/ethernet/broadcom/bgmac.c:1521:2: error: implicit declaration of function 'phy_disconnect' [-Werror=implicit-function-declaration]
drivers/net/ethernet/broadcom/bgmac.c:1541:15: error: expected declaration specifiers or '...' before string constant
Add linux/phy.h to bgmac.c
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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So far were were allocating struct bgmac in 3 places: platform code,
bcma code and shared bgmac_enet_probe function. The reason for this was
bgmac_enet_probe:
1) Requiring early-filled struct bgmac
2) Calling alloc_etherdev on its own in order to use netdev_priv later
This solution got few drawbacks:
1) Was duplicating allocating code
2) Required copying early-filled struct
3) Resulted in platform/bcma code having access only to unused struct
Solve this situation by simply extracting some probe code into the new
bgmac_alloc function.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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napi_complete_done() allows to opt-in for gro_flush_timeout,
added back in linux-3.19, commit 3b47d30396ba
("net: gro: add a per device gro flush timer")
This allows for more efficient GRO aggregation without
sacrifying latencies.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Several cases of bug fixes in 'net' overlapping other changes in
'net-next-.
Signed-off-by: David S. Miller <davem@davemloft.net>
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This fixes regression introduced by patch adding feature flags. It was
already reported and patch followed (it got accepted) but it appears it
was incorrect. Instead of fixing reversed condition it broke a good one.
This patch was verified to actually fix SoC hanges caused by bgmac on
BCM47186B0.
Fixes: db791eb2970b ("net: ethernet: bgmac: convert to feature flags")
Fixes: 4af1474e6198 ("net: bgmac: Fix errant feature flag check")
Cc: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for the variant of amac hardware present in the Broadcom
Northstar2 based SoCs. Northstar2 requires an additional register to be
configured with the port speed/duplexity (NICPM). This can be added to
the link callback to hide it from the instances that do not use this.
Also, clearing of the pending interrupts on init is required due to
observed issues on some platforms.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Change the bgmac driver to allow for phy's defined by the device tree
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Current bgmac code initializes some DMA settings in the receive control
register for some hardware and then immediately clears those settings.
Not clearing those settings results in ~420Mbps *improvement* in
throughput; this system can now receive frames at line-rate on Broadcom
5871x hardware compared to ~520Mbps today. I also tested a few other
values but found there to be no discernible difference in CPU
utilization even if burst size and prefetching values are different.
On the hardware tested there was no need to keep the code that cleared
all but bits 16-17, but since there is a wide variety of hardware that
used this driver (I did not look at all hardware docs for hardware using
this IP block), I find it wise to move this call up and clear bits just
after reading the default value from the hardware rather than completely
removing it.
This is a good candidate for -stable >=3.14 since that is when the code
that was supposed to improve performance (but did not) was introduced.
Signed-off-by: Andy Gospodarek <gospo@broadcom.com>
Fixes: 56ceecde1f29 ("bgmac: initialize the DMA controller of core...")
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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trivial fix to spelling mistake in dev_err message
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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During the conversion to the feature flags, a check against
ci->id != BCMA_CHIP_ID_BCM47162
became
bgmac->feature_flags & BGMAC_FEAT_CLKCTLS
instead of
!(bgmac->feature_flags & BGMAC_FEAT_CLKCTLS)
Reported-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It doesn't really change anything as BGMAC_CHIPCTL_1_IF_TYPE_RMII is
equal to 0. It make code a bit clener, so far when reading it one could
think we forgot to set a proper mode. It also keeps this mode code in
sync with other ones.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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BCM53573 is a new series of Broadcom's SoCs. It's based on ARM and can
be found in two packages (versions): BCM53573 and BCM47189. It shares
some code with the Northstar family, but also requires some new quirks.
First of all there can be up to 2 Ethernet cores on this SoC. If that is
the case, they are connected to two different switch ports allowing some
more complex/optimized setups. It seems the second unit doesn't come
fully configured and requires some IRQ quirk.
Other than that only the first core is connected to the PHY. For the
second one we have to register fixed PHY (similarly to the Northstar),
otherwise generic PHY driver would get some invalid info.
This has been successfully tested on Tenda AC9 (BCM47189B0).
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Just several instances of overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Nothing is decrementing the index "i" while we are cleaning up the
fragments we could not successful transmit.
Fixes: 9cde94506eacf ("bgmac: implement scatter/gather support")
Reported-by: coverity (CID 1352048)
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bcma portion of the driver has been split off into a bcma specific
driver. This has been mirrored for the platform driver. The last
references to the bcma core struct have been changed into a generic
function call. These function calls are wrappers to either the original
bcma code or new platform functions that access the same areas via MMIO.
This necessitated adding function pointers for both platform and bcma to
hide which backend is being used from the generic bgmac code.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bgmac driver is using the bcma provides device ID and revision, as
well as the SoC ID and package, to determine which features are
necessary to enable, reset, etc in the driver. In anticipation of
removing the bcma requirement for this driver, these must be changed to
not reference that struct. In place of that, each "feature" has been
given a flag, and the flags are enabled for their respective device and
SoC.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move the BCMA MDIO phy into a separate file, as it is very tightly
coupled with the BCMA bus. This will help with the upcoming BCMA
removal from the bgmac driver. Optimally, this should be moved into
phy drivers, but it is too tightly coupled with the bgmac driver to
effectively move it without more changes to the driver.
Note: the phy_reset was intentionally removed, as the mdio phy subsystem
automatically resets the phy if a reset function pointer is present. In
addition to the moving of the driver, this reset function is added.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The dma buffer allocation, etc references a dma_dev device pointer from
the bcma core. In anticipation of removing the bcma requirement for
this driver, these must be changed to not reference that struct. Add a
dma_dev device pointer to the bgmac stuct and reference that instead.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The bgmac_* print wrappers call dev_* prints with the dev pointer from
the bcma core. In anticipation of removing the bcma requirement for
this driver, these must be changed to not reference that struct. So,
simply change all of the bgmac_* prints to their dev_* counterparts. In
some cases netdev_* prints are more appropriate, so change those as
well.
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Several cases of overlapping changes, except the packet scheduler
conflicts which deal with the addition of the free list parameter
to qdisc_enqueue().
Signed-off-by: David S. Miller <davem@davemloft.net>
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bgmac_open() calls phy_start() to initialize the PHY state machine,
which will set the interface's carrier state accordingly, no need to
force that as this could be conflicting with the PHY state determined by
PHYLIB.
Fixes: dd4544f05469 ("bgmac: driver for GBit MAC core on BCMA bus")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver does not start the transmit queue in bgmac_open(). If the
queue was stopped prior to closing then re-opening the interface, we
would never be able to wake-up again.
Fixes: dd4544f05469 ("bgmac: driver for GBit MAC core on BCMA bus")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We are checking for the Start of Frame bit in the ctl1 word, while this
bit is set in the ctl0 word instead. Read the ctl0 word and update the
check to verify that.
Fixes: 9cde94506eac ("bgmac: implement scatter/gather support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are two generics functions phy_ethtool_{get|set}_link_ksettings,
so we can use them instead of defining the same code in the driver.
Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The private structure contain a pointer to phydev, but the structure
net_device already contain such pointer. So we can remove the pointer
phydev in the private structure, and update the driver to use the
one contained in struct net_device.
Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a few netdev statistics to report transmitted and received bytes and
packets and a few obvious errors.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Read the statistics from the BGMAC's builtin MAC and return them to
user-space using the standard ethtool helpers.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for allowing different helpers to be utilized against
network devices created by the bgmac driver, make sure that we bind the
net_device with core->dev.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (21 commits)
gitignore: fix wording
mfd: ab8500-debugfs: fix "between" in printk
memstick: trivial fix of spelling mistake on management
cpupowerutils: bench: fix "average"
treewide: Fix typos in printk
IB/mlx4: printk fix
pinctrl: sirf/atlas7: fix printk spelling
serial: mctrl_gpio: Grammar s/lines GPIOs/line GPIOs/, /sets/set/
w1: comment spelling s/minmum/minimum/
Blackfin: comment spelling s/divsor/divisor/
metag: Fix misspellings in comments.
ia64: Fix misspellings in comments.
hexagon: Fix misspellings in comments.
tools/perf: Fix misspellings in comments.
cris: Fix misspellings in comments.
c6x: Fix misspellings in comments.
blackfin: Fix misspelling of 'register' in comment.
avr32: Fix misspelling of 'definitions' in comment.
treewide: Fix typos in printk
Doc: treewide : Fix typos in DocBook/filesystem.xml
...
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This patch fix spelling typos in printk from various part
of the codes.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This fixes Ethernet on D-Link DIR-885L with BCM47094 SoC. Felix reported
similar fix was needed for his BCM4709 device (Buffalo WXR-1900DHP?).
I tested this for regressions on BCM4706, BCM4708A0 and BCM47081A0.
Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It needs very similar workarounds to the one on BCM4707. It was tested
on D-Link DIR-885L home router.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Chipsets with BCM4707 / BCM53018 ID require special handling at a few
places in the code. It's likely there will be more IDs to check in the
future. To simplify it add this trivial helper.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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