| Age | Commit message (Collapse) | Author |
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The function ll_temac_ethtools_set_ringparam() incorrectly checked
rx_pending twice, once correctly for RX and once mistakenly in place
of tx_pending. This caused tx_pending to be left unchecked against
TX_BD_NUM_MAX.
As a result, invalid TX ring sizes may have been accepted or valid
ones wrongly rejected based on the RX limit, leading to potential
misconfiguration or unexpected results.
This patch corrects the condition to properly validate tx_pending.
Fixes: f7b261bfc35e ("net: ll_temac: Make RX/TX ring sizes configurable")
Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Link: https://patch.msgid.link/20250710180621.2383000-1-alok.a.tiwari@oracle.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/net/ethernet to use
.remove(), with the eventual goal to drop struct
platform_driver::remove_new(). As .remove() and .remove_new() have the
same prototypes, conversion is done by just changing the structure
member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/18f7c585a1a8a8ac8b03a2fca7de19bd5c52ac2b.1727949050.git.u.kleine-koenig@baylibre.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The function platform_get_resource was replaced with
devm_platform_ioremap_resource_byname and is called using 0 as name.
This eventually ends up in platform_get_resource_byname in the call
stack, where it causes a null pointer in strcmp.
if (type == resource_type(r) && !strcmp(r->name, name))
It should have been replaced with devm_platform_ioremap_resource.
Fixes: bd69058f50d5 ("net: ll_temac: Use devm_platform_ioremap_resource_byname()")
Signed-off-by: Claus Hansen Ries <chr@terma.com>
Cc: stable@vger.kernel.org
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/cca18f9c630a41c18487729770b492bb@terma.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert these drivers from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Cross-merge networking fixes after downstream PR.
Conflicts:
net/dsa/port.c
9945c1fb03a3 ("net: dsa: fix older DSA drivers using phylink")
a88dd7538461 ("net: dsa: remove legacy_pre_march2020 detection")
https://lore.kernel.org/all/20230731102254.2c9868ca@canb.auug.org.au/
net/xdp/xsk.c
3c5b4d69c358 ("net: annotate data-races around sk->sk_mark")
b7f72a30e9ac ("xsk: introduce wrappers and helpers for supporting multi-buffer in Tx path")
https://lore.kernel.org/all/20230731102631.39988412@canb.auug.org.au/
drivers/net/ethernet/broadcom/bnxt/bnxt.c
37b61cda9c16 ("bnxt: don't handle XDP in netpoll")
2b56b3d99241 ("eth: bnxt: handle invalid Tx completions more gracefully")
https://lore.kernel.org/all/20230801101708.1dc7faac@canb.auug.org.au/
Adjacent changes:
drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
62da08331f1a ("net/mlx5e: Set proper IPsec source port in L4 selector")
fbd517549c32 ("net/mlx5e: Add function to get IPsec offload namespace")
drivers/net/ethernet/sfc/selftest.c
55c1528f9b97 ("sfc: fix field-spanning memcpy in selftest")
ae9d445cd41f ("sfc: Miscellaneous comment removals")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Most kernel functions return negative error codes but some irq functions
return zero on error. In this code irq_of_parse_and_map(), returns zero
and platform_get_irq() returns negative error codes. We need to handle
both cases appropriately.
Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Esben Haabendal <esben@geanix.com>
Reviewed-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Link: https://lore.kernel.org/r/3d0aef75-06e0-45a5-a2a6-2cc4738d4143@moroto.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Acked-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230727014944.3972546-1-robh@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to of_property_read_bool().
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> # for net/can
Acked-by: Kalle Valo <kvalo@kernel.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Francois Romieu <romieu@fr.zoreil.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Cleaning some static warnings of indent.
Signed-off-by: huangjunxian <huangjunxian6@hisilicon.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cleaning some static warnings of trailing statements.
Signed-off-by: huangjunxian <huangjunxian6@hisilicon.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cleaning some static warnings of missing spaces around '='.
Signed-off-by: huangjunxian <huangjunxian6@hisilicon.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cleaning some static warnings of unnecessary else branch.
Signed-off-by: huangjunxian <huangjunxian6@hisilicon.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cleaning some static warnings of open parenthesis.
Signed-off-by: huangjunxian <huangjunxian6@hisilicon.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As Checkpatch.pl warns, prefer using '"%s...", __func__'
to using 'temac_device_reset', this function's name, in a string.
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cleaning some static warnings of block comments.
Signed-off-by: huangjunxian <huangjunxian6@hisilicon.com>
Signed-off-by: Haoyue Xu <xuhaoyue1@hisilicon.com>
Reviewed-by: Harini Katakam <harini.katakam@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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dev_err() can be replace with dev_err_probe() which will check if error
code is -EPROBE_DEFER.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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"little-endian" has no specific content, use more helper function
of_property_read_bool() instead of of_get_property()
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tools/testing/selftests/net/mptcp/mptcp_join.sh
34aa6e3bccd8 ("selftests: mptcp: add ip mptcp wrappers")
857898eb4b28 ("selftests: mptcp: add missing join check")
6ef84b1517e0 ("selftests: mptcp: more robust signal race test")
https://lore.kernel.org/all/20220221131842.468893-1-broonie@kernel.org/
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/act.h
drivers/net/ethernet/mellanox/mlx5/core/en/tc/act/ct.c
fb7e76ea3f3b6 ("net/mlx5e: TC, Skip redundant ct clear actions")
c63741b426e11 ("net/mlx5e: Fix MPLSoUDP encap to use MPLS action information")
09bf97923224f ("net/mlx5e: TC, Move pedit_headers_action to parse_attr")
84ba8062e383 ("net/mlx5e: Test CT and SAMPLE on flow attr")
efe6f961cd2e ("net/mlx5e: CT, Don't set flow flag CT for ct clear flow")
3b49a7edec1d ("net/mlx5e: TC, Reject rules with multiple CT actions")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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devm_kmalloc() returns a pointer to allocated memory on success, NULL
on failure. While lp->indirect_lock is allocated by devm_kmalloc()
without proper check. It is better to check the value of it to
prevent potential wrong memory access.
Fixes: f14f5c11f051 ("net: ll_temac: Support indirect_mutex share within TEMAC IP")
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove the second 'the'.
Replacements:
endiannes to endianness
areconnected to are connected
Mamagement to Management
undoccumented to undocumented
Xilink to Xilinx
strucutre to structure
Change kernel-doc comment style to c style for
/* Management ...
Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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XTE_MAX_JUMBO_FRAME_SIZE is over 9000 bytes and the default value for
'rx_bd_num' is RX_BD_NUM_DEFAULT (i.e. 1024)
So this loop allocates more than 9 Mo of memory.
Previous memory allocations in this function already use GFP_KERNEL, so
use __netdev_alloc_skb_ip_align() and an explicit GFP_KERNEL instead of a
implicit GFP_ATOMIC.
This gives more opportunities of successful allocation.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/694abd65418b2b3974106a82d758e3474c65ae8f.1645042560.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add two new parameters kernel_ringparam and extack for
.get_ringparam and .set_ringparam to extend more ring params
through netlink.
Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert all Ethernet drivers from memcpy(... ETH_ADDR)
to eth_hw_addr_set():
@@
expression dev, np;
@@
- memcpy(dev->dev_addr, np, ETH_ALEN)
+ eth_hw_addr_set(dev, np)
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In order to support more coalesce parameters through netlink,
add two new parameter kernel_coal and extack for .set_coalesce
and .get_coalesce, then some extra info can return to user with
the netlink API.
Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Most users of ndo_do_ioctl are ethernet drivers that implement
the MII commands SIOCGMIIPHY/SIOCGMIIREG/SIOCSMIIREG, or hardware
timestamping with SIOCSHWTSTAMP/SIOCGHWTSTAMP.
Separate these from the few drivers that use ndo_do_ioctl to
implement SIOCBOND, SIOCBR and SIOCWANDEV commands.
This is a purely cosmetic change intended to help readers find
their way through the implementation.
Cc: Doug Ledford <dledford@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Vladimir Oltean <olteanv@gmail.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: linux-rdma@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixes: f63963411942 ("net: ll_temac: Avoid ndo_start_xmit returning NETDEV_TX_BUSY")
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As documented in Documentation/networking/driver.rst, the ndo_start_xmit
method must not return NETDEV_TX_BUSY under any normal circumstances, and
as recommended, we simply stop the tx queue in advance, when there is a
risk that the next xmit would cause a NETDEV_TX_BUSY return.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Just as the initial check, we need to ensure num_frag+1 buffers available,
as that is the number of buffers we are going to use.
This fixes a buffer overflow, which might be seen during heavy network
load. Complete lockup of TEMAC was reproducible within about 10 minutes of
a particular load.
Fixes: 84823ff80f74 ("net: ll_temac: Fix race condition causing TX hang")
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a couple of memory-barriers to ensure correct ordering of read/write
access to TX BDs.
In xmit_done, we should ensure that reading the additional BD fields are
only done after STS_CTRL_APP0_CMPLT bit is set.
When xmit_done marks the BD as free by setting APP0=0, we need to ensure
that the other BD fields are reset first, so we avoid racing with the xmit
path, which writes to the same fields.
Finally, making sure to read APP0 of next BD after the current BD, ensures
that we see all available buffers.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With the skb pointer piggy-backed on the TX BD, we have a simple and
efficient way to free the skb buffer when the frame has been transmitted.
But in order to avoid freeing the skb while there are still fragments from
the skb in use, we need to piggy-back on the TX BD of the skb, not the
first.
Without this, we are doing use-after-free on the DMA side, when the first
BD of a multi TX BD packet is seen as completed in xmit_done, and the
remaining BDs are still being processed.
Cc: stable@vger.kernel.org # v5.4+
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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of_get_mac_address() returns a "const void*" pointer to a MAC address.
Lately, support to fetch the MAC address by an NVMEM provider was added.
But this will only work with platform devices. It will not work with
PCI devices (e.g. of an integrated root complex) and esp. not with DSA
ports.
There is an of_* variant of the nvmem binding which works without
devices. The returned data of a nvmem_cell_read() has to be freed after
use. On the other hand the return of_get_mac_address() points to some
static data without a lifetime. The trick for now, was to allocate a
device resource managed buffer which is then returned. This will only
work if we have an actual device.
Change it, so that the caller of of_get_mac_address() has to supply a
buffer where the MAC address is written to. Unfortunately, this will
touch all drivers which use the of_get_mac_address().
Usually the code looks like:
const char *addr;
addr = of_get_mac_address(np);
if (!IS_ERR(addr))
ether_addr_copy(ndev->dev_addr, addr);
This can then be simply rewritten as:
of_get_mac_address(np, ndev->dev_addr);
Sometimes is_valid_ether_addr() is used to test the MAC address.
of_get_mac_address() already makes sure, it just returns a valid MAC
address. Thus we can just test its return code. But we have to be
careful if there are still other sources for the MAC address before the
of_get_mac_address(). In this case we have to keep the
is_valid_ether_addr() call.
The following coccinelle patch was used to convert common cases to the
new style. Afterwards, I've manually gone over the drivers and fixed the
return code variable: either used a new one or if one was already
available use that. Mansour Moufid, thanks for that coccinelle patch!
<spml>
@a@
identifier x;
expression y, z;
@@
- x = of_get_mac_address(y);
+ x = of_get_mac_address(y, z);
<...
- ether_addr_copy(z, x);
...>
@@
identifier a.x;
@@
- if (<+... x ...+>) {}
@@
identifier a.x;
@@
if (<+... x ...+>) {
...
}
- else {}
@@
identifier a.x;
expression e;
@@
- if (<+... x ...+>@e)
- {}
- else
+ if (!(e))
{...}
@@
expression x, y, z;
@@
- x = of_get_mac_address(y, z);
+ of_get_mac_address(y, z);
... when != x
</spml>
All drivers, except drivers/net/ethernet/aeroflex/greth.c, were
compile-time tested.
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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platform_get_resource() may fail and in this case a NULL dereference
will occur.
Fix it to use devm_platform_ioremap_resource() instead of calling
platform_get_resource() and devm_ioremap().
This is detected by Coccinelle semantic patch.
@@
expression pdev, res, n, t, e, e1, e2;
@@
res = \(platform_get_resource\|platform_get_resource_byname\)(pdev, t, n);
+ if (!res)
+ return -EINVAL;
... when != res == NULL
e = devm_ioremap(e1, res->start, e2);
Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms")
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As part of the W=1 series for ethernet, these drivers were
discovered to be using kdoc style comments but were not actually
doing kdoc. The kernel uses kdoc style when documenting code, not
doxygen or other styles.
Fixed Warnings:
drivers/net/ethernet/amazon/ena/ena_com.c:613: warning: Function parameter or member 'ena_dev' not described in 'ena_com_set_llq'
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c:1540: warning: Cannot understand * @brief Set VLAN filter table
drivers/net/ethernet/xilinx/ll_temac_main.c:114: warning: Function parameter or member 'lp' not described in 'temac_indirect_busywait'
drivers/net/ethernet/xilinx/ll_temac_main.c:129: warning: Function parameter or member 'lp' not described in 'temac_indirect_in32'
drivers/net/ethernet/xilinx/ll_temac_main.c:129: warning: Function parameter or member 'reg' not described in 'temac_indirect_in32'
drivers/net/ethernet/xilinx/ll_temac_main.c:147: warning: Function parameter or member 'lp' not described in 'temac_indirect_in32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:147: warning: Function parameter or member 'reg' not described in 'temac_indirect_in32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'lp' not described in 'temac_indirect_out32'
drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'reg' not described in 'temac_indirect_out32'
drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'value' not described in 'temac_indirect_out32'
drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'lp' not described in 'temac_indirect_out32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'reg' not described in 'temac_indirect_out32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'value' not described in 'temac_indirect_out32_locked'
drivers/net/ethernet/xilinx/ll_temac_main.c:212: warning: Function parameter or member 'lp' not described in 'temac_dma_in32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:212: warning: Function parameter or member 'reg' not described in 'temac_dma_in32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'lp' not described in 'temac_dma_out32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'reg' not described in 'temac_dma_out32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'value' not described in 'temac_dma_out32_be'
drivers/net/ethernet/xilinx/ll_temac_main.c:247: warning: Function parameter or member 'lp' not described in 'temac_dma_dcr_in'
drivers/net/ethernet/xilinx/ll_temac_main.c:247: warning: Function parameter or member 'reg' not described in 'temac_dma_dcr_in'
drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'lp' not described in 'temac_dma_dcr_out'
drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'reg' not described in 'temac_dma_dcr_out'
drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'value' not described in 'temac_dma_dcr_out'
drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'lp' not described in 'temac_dcr_setup'
drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'op' not described in 'temac_dcr_setup'
drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'np' not described in 'temac_dcr_setup'
drivers/net/ethernet/xilinx/ll_temac_main.c:300: warning: Function parameter or member 'ndev' not described in 'temac_dma_bd_release'
drivers/net/ethernet/xilinx/ll_temac_main.c:330: warning: Function parameter or member 'ndev' not described in 'temac_dma_bd_init'
drivers/net/ethernet/xilinx/ll_temac_main.c:600: warning: Function parameter or member 'ndev' not described in 'temac_setoptions'
drivers/net/ethernet/xilinx/ll_temac_main.c:600: warning: Function parameter or member 'options' not described in 'temac_setoptions'
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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platform_get_resource() may fail and return NULL, so we had better
check its return value to avoid a NULL pointer dereference a bit later
in the code. Fix it to use devm_platform_ioremap_resource_byname()
instead of calling platform_get_resource_byname() and devm_ioremap().
Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wang Hai <wanghai38@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of error, the function devm_ioremap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set ethtool_ops->supported_coalesce_params to let
the core reject unsupported coalescing parameters.
This driver already correctly rejected all unsupported
parameters. No functional changes.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Please note that the delays are calculated based on typical
parameters. But as TEMAC is an HDL IP, designs may vary, and future
work might be needed to make this calculation configurable.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add support for setting the RX and TX ring sizes for this driver using
ethtool. Also increase the default RX ring size as the previous default
was far too low for good performance in some configurations.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The start_p variable was included in the initial commit,
commit 92744989533c ("net: add Xilinx ll_temac device driver"),
but has never had any real use.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The tx_bd_next field was included in the initial commit,
commit 92744989533c ("net: add Xilinx ll_temac device driver"),
but has never had any real use.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The SDMA engine used by TEMAC halts operation when it has finished
processing of the last buffer descriptor in the buffer ring.
Unfortunately, no interrupt event is generated when this happens,
so we need to setup another mechanism to make sure DMA operation is
restarted when enough buffers have been added to the ring.
Fixes: 92744989533c ("net: add Xilinx ll_temac device driver")
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Failures caused by GFP_ATOMIC memory pressure have been observed, and
due to the missing error handling, results in kernel crash such as
[1876998.350133] kernel BUG at mm/slub.c:3952!
[1876998.350141] invalid opcode: 0000 [#1] PREEMPT SMP PTI
[1876998.350147] CPU: 2 PID: 0 Comm: swapper/2 Not tainted 5.3.0-scnxt #1
[1876998.350150] Hardware name: N/A N/A/COMe-bIP2, BIOS CCR2R920 03/01/2017
[1876998.350160] RIP: 0010:kfree+0x1ca/0x220
[1876998.350164] Code: 85 db 74 49 48 8b 95 68 01 00 00 48 31 c2 48 89 10 e9 d7 fe ff ff 49 8b 04 24 a9 00 00 01 00 75 0b 49 8b 44 24 08 a8 01 75 02 <0f> 0b 49 8b 04 24 31 f6 a9 00 00 01 00 74 06 41 0f b6 74 24
5b
[1876998.350172] RSP: 0018:ffffc900000f0df0 EFLAGS: 00010246
[1876998.350177] RAX: ffffea00027f0708 RBX: ffff888008d78000 RCX: 0000000000391372
[1876998.350181] RDX: 0000000000000000 RSI: ffffe8ffffd01400 RDI: ffff888008d78000
[1876998.350185] RBP: ffff8881185a5d00 R08: ffffc90000087dd8 R09: 000000000000280a
[1876998.350189] R10: 0000000000000002 R11: 0000000000000000 R12: ffffea0000235e00
[1876998.350193] R13: ffff8881185438a0 R14: 0000000000000000 R15: ffff888118543870
[1876998.350198] FS: 0000000000000000(0000) GS:ffff88811f300000(0000) knlGS:0000000000000000
[1876998.350203] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
s#1 Part1
[1876998.350206] CR2: 00007f8dac7b09f0 CR3: 000000011e20a006 CR4: 00000000001606e0
[1876998.350210] Call Trace:
[1876998.350215] <IRQ>
[1876998.350224] ? __netif_receive_skb_core+0x70a/0x920
[1876998.350229] kfree_skb+0x32/0xb0
[1876998.350234] __netif_receive_skb_core+0x70a/0x920
[1876998.350240] __netif_receive_skb_one_core+0x36/0x80
[1876998.350245] process_backlog+0x8b/0x150
[1876998.350250] net_rx_action+0xf7/0x340
[1876998.350255] __do_softirq+0x10f/0x353
[1876998.350262] irq_exit+0xb2/0xc0
[1876998.350265] do_IRQ+0x77/0xd0
[1876998.350271] common_interrupt+0xf/0xf
[1876998.350274] </IRQ>
In order to handle such failures more graceful, this change splits the
receive loop into one for consuming the received buffers, and one for
allocating new buffers.
When GFP_ATOMIC allocations fail, the receive will continue with the
buffers that is still there, and with the expectation that the allocations
will succeed in a later call to receive.
Fixes: 92744989533c ("net: add Xilinx ll_temac device driver")
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds error handling to the remaining dma_map_single() calls, so that
behavior is well defined if/when we run out of DMA memory.
Fixes: 92744989533c ("net: add Xilinx ll_temac device driver")
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is possible that the interrupt handler fires and frees up space in
the TX ring in between checking for sufficient TX ring space and
stopping the TX queue in temac_start_xmit. If this happens, the
queue wake from the interrupt handler will occur before the queue is
stopped, causing a lost wakeup and the adapter's transmit hanging.
To avoid this, after stopping the queue, check again whether there is
sufficient space in the TX ring. If so, wake up the queue again.
This is a port of the similar fix in axienet driver,
commit 7de44285c1f6 ("net: axienet: Fix race condition causing TX hang").
Fixes: 23ecc4bde21f ("net: ll_temac: fix checksum offload logic")
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking updates from David Miller:
1) Add WireGuard
2) Add HE and TWT support to ath11k driver, from John Crispin.
3) Add ESP in TCP encapsulation support, from Sabrina Dubroca.
4) Add variable window congestion control to TIPC, from Jon Maloy.
5) Add BCM84881 PHY driver, from Russell King.
6) Start adding netlink support for ethtool operations, from Michal
Kubecek.
7) Add XDP drop and TX action support to ena driver, from Sameeh
Jubran.
8) Add new ipv4 route notifications so that mlxsw driver does not have
to handle identical routes itself. From Ido Schimmel.
9) Add BPF dynamic program extensions, from Alexei Starovoitov.
10) Support RX and TX timestamping in igc, from Vinicius Costa Gomes.
11) Add support for macsec HW offloading, from Antoine Tenart.
12) Add initial support for MPTCP protocol, from Christoph Paasch,
Matthieu Baerts, Florian Westphal, Peter Krystad, and many others.
13) Add Octeontx2 PF support, from Sunil Goutham, Geetha sowjanya, Linu
Cherian, and others.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1469 commits)
net: phy: add default ARCH_BCM_IPROC for MDIO_BCM_IPROC
udp: segment looped gso packets correctly
netem: change mailing list
qed: FW 8.42.2.0 debug features
qed: rt init valid initialization changed
qed: Debug feature: ilt and mdump
qed: FW 8.42.2.0 Add fw overlay feature
qed: FW 8.42.2.0 HSI changes
qed: FW 8.42.2.0 iscsi/fcoe changes
qed: Add abstraction for different hsi values per chip
qed: FW 8.42.2.0 Additional ll2 type
qed: Use dmae to write to widebus registers in fw_funcs
qed: FW 8.42.2.0 Parser offsets modified
qed: FW 8.42.2.0 Queue Manager changes
qed: FW 8.42.2.0 Expose new registers and change windows
qed: FW 8.42.2.0 Internal ram offsets modifications
MAINTAINERS: Add entry for Marvell OcteonTX2 Physical Function driver
Documentation: net: octeontx2: Add RVU HW and drivers overview
octeontx2-pf: ethtool RSS config support
octeontx2-pf: Add basic ethtool support
...
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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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ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Fixes: 1b3fa5cf859b ("net: ll_temac: Cleanup multicast filter on change")
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Multicast support have been tested and is working now.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Avoid leaving old address table entries when using multicast. If more than
one multicast address were removed, only the first removed address would
actually be cleared.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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