Commit Graph

919738 Commits

Author SHA1 Message Date
Antoine Tenart
2684bda347 net: phy: mscc: fix PHYs using the vsc8574_probe
PHYs using the vsc8574_probe fail to be initialized and their
config_init return -EIO leading to errors like:
"could not attach PHY: -5".

This is because when the conversion of the MSCC PHY driver to use the
shared PHY package helpers was done, the base address retrieval and the
base PHY read and write helpers in the driver were modified. In
particular, the base address retrieval logic was moved from the
config_init to the probe. But the vsc8574_probe was forgotten. This
patch fixes it.

Fixes: deb04e9c0f ("net: phy: mscc: use phy_package_shared")
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Michael Walle <michael@walle.cc>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-29 12:44:27 -07:00
Bartosz Golaszewski
09b547a799 net: ethernet: mtk-star-emac: remove unused variable
The desc pointer is set but not used. Remove it.

Reported-by: kbuild test robot <lkp@intel.com>
Fixes: 8c7bd5a454 ("net: ethernet: mtk-star-emac: new driver")
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-29 12:42:04 -07:00
David S. Miller
cdde95bc89 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2020-05-28

This series contains updates to e1000, e1000e, igc, igb, ixgbe and i40e.

Takashi Iwai, from SUSE, replaces some uses of snprintf() with
scnprintf() since the succeeding calls may go beyond the given buffer
limit in i40e.

Jesper Dangaard Brouer fixes up code comments in i40e_xsk.c

Xie XiuQi, from Huawei, fixes a signed-integer-overflow warning ixgbe
driver.

Jason Yan, from Huawei, converts '==' expression to bool to resolve
warnings, also fixed a warning for assigning 0/1 to a bool variable in
the ixgbe driver.  Converts functions that always return 0 to void in the
igb and i40e drivers.

YueHaibing, from Hauwei, cleans up dead code in ixgbe driver.

Sasha cleans up more dead code which is not used in the igc driver.
Added receive error counter to reflect the total number of non-filtered
packets received with errors.  Fixed a register define name to properly
reflect the register address being used.

Andre updates the igc driver to reject NFC rules that have multiple
matches, which is not supported in i225 devices.  Updates the total
number of NFC rules supported and added a code comment to explain what
is supported.

Punit Agrawal, from Toshiba, relaxes the condition to trigger a reset
for ME, which was leading to inconsistency between the state of the
hardware as expected by the driver in e1000e.

Hari, from the Linux community, cleaned up a code comment in the e1000
driver.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-29 12:17:45 -07:00
Ronak Doshi
3643279764 vmxnet3: use correct hdr reference when packet is encapsulated
'Commit dacce2be33 ("vmxnet3: add geneve and vxlan tunnel offload
support")' added support for encapsulation offload. However, while
preparing inner tso packet, it uses reference to outer ip headers.

This patch fixes this issue by using correct reference for inner
headers.

Fixes: dacce2be33 ("vmxnet3: add geneve and vxlan tunnel offload support")
Signed-off-by: Ronak Doshi <doshir@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-29 12:13:49 -07:00
Hari
6a3faa4d7e e1000: Fix typo in the comment
Continuous Double "the" in a comment. Changed it to single "the"

Signed-off-by: Hari <harichandrakanthan@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:36:41 -07:00
Sasha Neftin
480b7a5a3f igc: Fix wrong register name
Accordance to the i225 datasheet this register address
used by Host Transmit Discarded Packet by MAC counter
and not by not applicable Carrier Extension Error counter.
This patch comes to fix this wrong definition.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:33:53 -07:00
Sasha Neftin
e2d0f2031e igc: Remove Sequence Error Counter
Accordance to the i225 datasheet sequence error counter does not
applicable to the i225 device.
This patch comes to clean up this counter.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:32:04 -07:00
Sasha Neftin
51c657b42f igc: Add Receive Error Counter
Receive error counter reflect total number of non-filtered
packets received with errors. This includes: CRC error,
symbol error, Rx data error and carrier extend error.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:30:06 -07:00
Sasha Neftin
758b51e1e7 igc: Remove symbol error counter
Accordance to the i225 datasheet symbol error counter does not
applicable to the i225 device.
This patch comes to clean up this counter.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:26:57 -07:00
Jason Yan
3f6023f77a i40e: Make i40e_shutdown_adminq() return void
Fix the following coccicheck warning:

drivers/net/ethernet/intel/i40e/i40e_adminq.c:699:13-21: Unneeded
variable: "ret_code". Return "0" on line 710

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:19:47 -07:00
Punit Agrawal
d601afcae2 e1000e: Relax condition to trigger reset for ME workaround
It's an error if the value of the RX/TX tail descriptor does not match
what was written. The error condition is true regardless the duration
of the interference from ME. But the driver only performs the reset if
E1000_ICH_FWSM_PCIM2PCI_COUNT (2000) iterations of 50us delay have
transpired. The extra condition can lead to inconsistency between the
state of hardware as expected by the driver.

Fix this by dropping the check for number of delay iterations.

While at it, also make __ew32_prepare() static as it's not used
anywhere else.

CC: stable <stable@vger.kernel.org>
Signed-off-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp>
Reviewed-by: Alexander Duyck <alexander.h.duyck@linux.intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:18:04 -07:00
Andre Guedes
e087d3bbc4 igc: Fix IGC_MAX_RXNFC_RULES
IGC supports a total of 32 rules. 16 MAC address based, 8 VLAN priority
based, and 8 Ethertype based. This patch fixes IGC_MAX_RXNFC_RULES
accordingly.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:15:38 -07:00
Andre Guedes
3d3e9b6b6a igc: Reject NFC rules with multiple matches
The way Rx queue assignment based on mac address, Ethertype and VLAN
priority filtering operates in I225 doesn't allow us to properly support
NFC rules with multiple matches.

Consider the following example which assigns to queue 2 frames matching
the address MACADDR *and* Ethertype ETYPE.

$ ethtool -N eth0 flow-type ether dst <MACADDR> proto <ETYPE> queue 2

When such rule is applied, we have 2 unwanted behaviors:

    1) Any frame matching MACADDR will be assigned to queue 2. It
       doesn't matter the ETYPE value.

    2) Any accepted frame that has Ethertype equals to ETYPE, no matter
       the mac address, will be assigned to queue 2 as well.

In current code, multiple-match filters are accepted by the driver, even
though it doesn't support them properly. This patch adds a check for
multiple-match rules in igc_ethtool_is_nfc_rule_valid() so they are
rejected.

Signed-off-by: Andre Guedes <andre.guedes@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:13:11 -07:00
Sasha Neftin
2c3076f5ed igc: Remove unused flags
Transmit underrun, late and excess collision flags not in use.
This patch comes to clean up these flags.

Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:05:20 -07:00
Jason Yan
49c65e95f3 igb: make igb_set_fc_watermarks() return void
This function always return 0 now, we can make it return void to
simplify the code. This fixes the following coccicheck warning:

drivers/net/ethernet/intel/igb/e1000_mac.c:728:5-12: Unneeded variable:
"ret_val". Return "0" on line 751

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:04:01 -07:00
YueHaibing
f2d9f29412 ixgbe: Remove unused inline function ixgbe_irq_disable_queues
commit b5f69ccf67 ("ixgbe: avoid bringing rings up/down as macvlans are added/removed")
left behind this, remove it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:01:39 -07:00
Jason Yan
c2d77e598b ixgbe: Use true, false for bool variable in __ixgbe_enable_sriov()
Fix the following coccicheck warning:

drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c:105:2-38: WARNING:
Assignment of 0/1 to bool variable

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 20:00:02 -07:00
Jason Yan
85c41c5b16 ixgbe: Remove conversion to bool in ixgbe_device_supports_autoneg_fc()
No need to convert '==' expression to bool. This fixes the following
coccicheck warning:

drivers/net/ethernet/intel/ixgbe/ixgbe_common.c:68:11-16: WARNING:
conversion to bool not needed here

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 19:58:34 -07:00
Xie XiuQi
3b70683fc4 ixgbe: fix signed-integer-overflow warning
ubsan report this warning, fix it by adding a unsigned suffix.

UBSAN: signed-integer-overflow in
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c:2246:26
65535 * 65537 cannot be represented in type 'int'
CPU: 21 PID: 7 Comm: kworker/u256:0 Not tainted 5.7.0-rc3-debug+ #39
Hardware name: Huawei TaiShan 2280 V2/BC82AMDC, BIOS 2280-V2 03/27/2020
Workqueue: ixgbe ixgbe_service_task [ixgbe]
Call trace:
 dump_backtrace+0x0/0x3f0
 show_stack+0x28/0x38
 dump_stack+0x154/0x1e4
 ubsan_epilogue+0x18/0x60
 handle_overflow+0xf8/0x148
 __ubsan_handle_mul_overflow+0x34/0x48
 ixgbe_fc_enable_generic+0x4d0/0x590 [ixgbe]
 ixgbe_service_task+0xc20/0x1f78 [ixgbe]
 process_one_work+0x8f0/0xf18
 worker_thread+0x430/0x6d0
 kthread+0x218/0x238
 ret_from_fork+0x10/0x18

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 19:56:40 -07:00
Jesper Dangaard Brouer
e92c0e0235 i40e: trivial fixup of comments in i40e_xsk.c
The comment above i40e_run_xdp_zc() was clearly copy-pasted from
function i40e_xsk_umem_setup, which is just above.

Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 19:55:17 -07:00
Takashi Iwai
c28481a88c i40e: Use scnprintf() for avoiding potential buffer overflow
Since snprintf() returns the would-be-output size instead of the
actual output size, the succeeding calls may go beyond the given
buffer limit.  Fix it by replacing with scnprintf().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2020-05-28 19:51:51 -07:00
David S. Miller
394f9ebf92 Merge branch 'hns3-next'
Huazhong Tan says:

====================
net: hns3: misc updates for -next

This patchset includes some updates for the HNS3 ethernet driver.

====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:04 -07:00
Huazhong Tan
ead38a8537 net: hns3: print out speed info when parsing speed fails
When calling hclge_parse_speed() fails, printing out the speed is
helpful for debugging.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:04 -07:00
Huazhong Tan
7c6643cac0 net: hns3: remove some unused fields in struct hclge_dev
Remove some fields in struct hclge_dev which have not been used.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:04 -07:00
Huazhong Tan
9cee2e8d30 net: hns3: remove two duplicated register macros in hclgevf_main.h
HCLGEVF_CMDQ_INTR_SRC_REG and HCLGEVF_CMDQ_INTR_STS_REG are same
as HCLGEVF_VECTOR0_CMDQ_SRC_REG and HCLGEVF_VECTOR0_CMDQ_STAT_REG,
replace the former with the latter, and rename macro
HCLGEVF_VECTOR0_CMDQ_STAT_REG since 'stat' is not abbreviation of
'state'.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
4828b5766a net: hns3: remove unused struct hnae3_unic_private_info
Since field .uinfo in struct hnae3_handle never be used,
so remove it and its structure definition.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
c496299e06 net: hns3; remove unused HNAE3_RESTORE_CLIENT in enum hnae3_reset_notify_type
Remove HNAE3_RESTORE_CLIENT which is not needed now.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
5e86178dce net: hns3: remove some unused fields in struct hns3_nic_priv
Remove some fileds which defined in struct hns3_nic_priv,
but not used, and remove the related definition of struct
hns3_udp_tunnel and enum hns3_udp_tnl_type.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
fb9e44d63d net: hns3: modify an incorrect type in struct hclgevf_cfg_gro_status_cmd
Modify field .gro_en in struct hclgevf_cfg_gro_status_cmd to u8
according to the UM, otherwise, it will overwrite the reserved
byte which may be used for other purpose.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
639d84d0c4 net: hns3: modify an incorrect type in struct hclge_cfg_gro_status_cmd
Modify field .gro_en in struct hclge_cfg_gro_status_cmd to u8
according to the UM, otherwise, it will overwrite the reserved
byte which may be used for other purpose.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
5caa039f32 net: hns3: refactor hclge_query_bd_num_cmd_send()
In order to improve code maintainability and readability, rewrite
the process of BDs' initialization in hclge_query_bd_num_cmd_send().

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
9f5a981606 net: hns3: refactor hclge_config_tso()
Since parameters 'tso_mss_min' and 'tso_mss_max' only indicate
the minimum and maximum MSS, the hnae3_set_field() calls are
meaningless, remove them and change the type of these two
parameters to u16.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
9516352150 net: hns3: add a missing mutex destroy in hclge_init_ad_dev()
Add a mutex destroy call in hclge_init_ae_dev() when fails.

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
Huazhong Tan
2421ee2477 net: hns3: remove an unnecessary 'goto' in hclge_init_ae_dev()
Remove the redundant 'goto' and return -ENOMEM directly, when
allocating memory for 'hdev' fails in hclge_init_ae_dev().

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:39:03 -07:00
David S. Miller
f4b992b461 Merge branch 'net-ks8851-Unify-KS8851-SPI-and-MLL-drivers'
Marek Vasut says:

====================
net: ks8851: Unify KS8851 SPI and MLL drivers

The KS8851SNL/SNLI and KS8851-16MLL/MLLI/MLLU are very much the same pieces
of silicon, except the former has an SPI interface, while the later has a
parallel bus interface. Thus far, Linux has two separate drivers for each
and they are diverging considerably.

This series unifies them into a single driver with small SPI and parallel
bus specific parts. The approach here is to first separate out the SPI
specific parts into a separate file, then add parallel bus accessors in
another separate file and then finally remove the old parallel bus driver.
The reason for replacing the old parallel bus driver is because the SPI
bus driver is much higher quality.

Note that I dropped "net: ks8851: Drop define debug and pr_fmt()" for now,
will send it separatelly later.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
72628da6d6 net: ks8851: Remove ks8851_mll.c
The ks8851_mll.c is replaced by ks8851_par.c, which is using common code
from ks8851.c, just like ks8851_spi.c . Remove this old ad-hoc driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
797047f875 net: ks8851: Implement Parallel bus operations
Implement accessors for KS8851-16MLL/MLLI/MLLU parallel bus variant of
the KS8851. This is based off the ks8851_mll.c , which is a driver for
exactly the same hardware, however the ks8851.c code is much higher
quality. Hence, this patch pulls out the relevant information from the
ks8851_mll.c on how to access the bus, but uses the common ks8851.c
code. To make this patch reviewable, instead of rewriting ks8851_mll.c,
ks8851_mll.c is removed in a separate subsequent patch.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
b07f987a8d net: ks8851: Separate SPI operations into separate file
Pull all the SPI bus specific code into a separate file, so that it is
not mixed with the common code. Rename ks8851.c to ks8851_common.c. The
ks8851_common.c is linked with ks8851_spi.c now, so it can call the
accessors in the ks8851_spi.c without any pointer indirection.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
7a552c850c net: ks8851: Implement register, FIFO, lock accessor callbacks
The register and FIFO accessors are bus specific, so is locking.
Implement callbacks so that each variant of the KS8851 can implement
matching accessors and locking, and use the rest of the common code.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
d2a1c643a0 net: ks8851: Permit overridding interrupt enable register
The parallel bus variant does not need to use the TX interrupt at all
as it writes the TX FIFO directly with in .ndo_start_xmit, permit the
drivers to configure the interrupt enable bits.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
144ad36c3d net: ks8851: Factor out TX work flush function
While the SPI version of the KS8851 requires a TX worker thread to pump
data via SPI, the parallel bus version can write data into the TX FIFO
directly in .ndo_start_xmit, as the parallel bus access is much faster
and does not sleep. Factor out this TX work flush part, so it can be
overridden by the parallel bus driver.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
24be72632c net: ks8851: Split out SPI specific code from probe() and remove()
Factor out common code into ks8851_probe_common() and
ks8851_remove_common() to permit both SPI and parallel
bus driver variants to use the common code path for
both probing and removal.

There should be no functional change.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
d48b7634c6 net: ks8851: Split out SPI specific entries in struct ks8851_net
Add a new struct ks8851_net_spi, which embeds the original
struct ks8851_net and contains the entries specific only to
the SPI variant of KS8851.

There should be no functional change.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
18a3df7309 net: ks8851: Factor out SKB receive function
Factor out this netif_rx_ni(), so it could be overridden by the parallel
bus variant of the KS8851 driver.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
2272602005 net: ks8851: Factor out bus lock handling
Pull out bus access locking code into separate functions, this is done
in preparation for unifying the driver with the parallel bus one. The
parallel bus driver does not need heavy mutex locking of the bus and
works better with spinlocks, hence prepare these locking functions to
be overridden then.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
aa39bf6730 net: ks8851: Use 16-bit read of RXFC register
The RXFC register is the only one being read using 8-bit accessors.
To make it easier to support the 16-bit accesses used by the parallel
bus variant of KS8851, use 16-bit accessor to read RXFC register as
well as neighboring RXFCTR register.

Remove ks8851_rdreg8() as it is not used anywhere anymore.

There should be no functional change.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
88cfedd0d7 net: ks8851: Use 16-bit writes to program MAC address
On the SPI variant of KS8851, the MAC address can be programmed with
either 8/16/32-bit writes. To make it easier to support the 16-bit
parallel option of KS8851 too, switch both the MAC address programming
and readout to 16-bit operations.

Remove ks8851_wrreg8() as it is not used anywhere anymore.

There should be no functional change.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
806f66495e net: ks8851: Remove ks8851_rdreg32()
The ks8851_rdreg32() is used only in one place, to read two registers
using a single read. To make it easier to support 16-bit accesses via
parallel bus later on, replace this single read with two 16-bit reads
from each of the registers and drop the ks8851_rdreg32() altogether.

If this has noticeable performance impact on the SPI variant of KS8851,
then we should consider using regmap to abstract the SPI and parallel
bus options and in case of SPI, permit regmap to merge register reads
of neighboring registers into single, longer, read.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
2c5b0a86ac net: ks8851: Use dev_{get,set}_drvdata()
Replace spi_{get,set}_drvdata() with dev_{get,set}_drvdata(), which
works for both SPI and platform drivers. This is done in preparation
for unifying the KS8851 SPI and parallel bus drivers.

There should be no functional change.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00
Marek Vasut
b6948e1b7b net: ks8851: Use devm_alloc_etherdev()
Use device managed version of alloc_etherdev() to simplify the code.
No functional change intended.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Petr Stetiar <ynezz@true.cz>
Cc: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-28 16:30:04 -07:00