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path: root/drivers/net/ethernet/mediatek/mtk_eth_soc.c
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2022-05-22net: ethernet: mtk_eth_soc: add rxd_size to mtk_soc_dataLorenzo Bianconi
Similar to tx counterpart, introduce rxd_size in mtk_soc_data data structure. This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on txd_size in txd_to_idxLorenzo Bianconi
This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on txd_size in mtk_desc_to_tx_bufLorenzo Bianconi
This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on txd_size in mtk_tx_alloc/mtk_tx_cleanLorenzo Bianconi
This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: add txd_size to mtk_soc_dataLorenzo Bianconi
In order to remove mtk_tx_dma size dependency, introduce txd_size in mtk_soc_data data structure. Rely on txd_size in mtk_init_fq_dma() and mtk_dma_free() routines. This is a preliminary patch to add mt7986 ethernet support. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: move tx dma desc configuration in ↵Lorenzo Bianconi
mtk_tx_set_dma_desc Move tx dma descriptor configuration in mtk_tx_set_dma_desc routine. This is a preliminary patch to introduce mt7986 ethernet support since it relies on a different tx dma descriptor layout. Tested-by: Sam Shih <sam.shih@mediatek.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-22net: ethernet: mtk_eth_soc: rely on GFP_KERNEL for dma_alloc_coherent ↵Lorenzo Bianconi
whenever possible Rely on GFP_KERNEL for dma descriptors mappings in mtk_tx_alloc(), mtk_rx_alloc() and mtk_init_fq_dma() since they are run in non-irq context. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-05-19net: mtk_eth_soc: partially convert to phylink_pcsRussell King (Oracle)
Partially convert mtk_eth_soc to phylink_pcs, moving the configuration, link up and AN restart over. However, it seems mac_pcs_get_state() doesn't actually get the state from the PCS, so we can't convert that over without a better understanding of the hardware. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19net: mtk_eth_soc: move restoration of SYSCFG0 to mac_finish()Russell King (Oracle)
The SGMIISYS configuration is performed while ETHSYS_SYSCFG0 is in a disabled state. In order to preserve this when we switch to phylink_pcs we need to move the restoration of this register to the mac_finish() callback. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19net: mtk_eth_soc: move MAC_MCR setting to mac_finish()Russell King (Oracle)
Move the setting of the MTK_MAC_MCR register from the end of mac_config into the phylink mac_finish() method, to keep it as the very last write that is done during configuration. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19net: mtk_eth_soc: add fixme comment for state->speed useRussell King (Oracle)
Add a fixme comment for the last remaining incorrect usage of state->speed in the mac_config() method, which is strangely in a code path which is only run when the PHY interface mode changes. This means if we are in RGMII mode, changes in state->speed will not cause the INTF_MODE, TRGMII_RCK_CTRL and TRGMII_TCK_CTRL registers to be set according to the speed, nor will the TRGPLL clock be set to the correct value. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19net: mtk_eth_soc: provide mtk_sgmii_config()Russell King (Oracle)
Provide mtk_sgmii_config() to wrap up the decisions about which SGMII configuration will be called. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19net: mtk_eth_soc: stop passing phylink state to sgmii setupRussell King (Oracle)
Now that mtk_sgmii_setup_mode_force() only uses the interface mode from the phylink state, pass just the interface mode into this function. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19net: mtk_eth_soc: correct 802.3z duplex settingRussell King
Phylink does not guarantee that state->duplex will be set correctly in the mac_config() call, so it's a bug that the driver makes use of it. Move the 802.3z PCS duplex configuration to mac_link_up(). Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-05-19net: mtk_eth_soc: remove unused mac->modeRussell King (Oracle)
mac->mode is only ever written to in one location, and is thus superflous. Remove it. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-04-29eth: mtk_eth_soc: remove a copy of the NAPI_POLL_WEIGHT defineJakub Kicinski
Defining local versions of NAPI_POLL_WEIGHT with the same values in the drivers just makes refactoring harder. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-13net: ethernet: mtk_eth_soc: use standard property for cci-control-portLorenzo Bianconi
Rely on standard cci-control-port property to identify CCI port reference. Update mt7622 dts binding. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-06net: ethernet: mtk_eth_soc: rework hardware flow table managementFelix Fietkau
The hardware was designed to handle flow detection and creation of flow entries by itself, relying on the software primarily for filling in egress routing information. When there is a hash collision between multiple flows, this allows the hardware to maintain the entry for the most active flow. Additionally, the hardware only keeps offloading active for entries with at least 30 packets per second. With this rework, the code no longer creates a hardware entries directly. Instead, the hardware entry is only created when the PPE reports a matching unbound flow with the minimum target rate. In order to reduce CPU overhead, looking for flows belonging to a hash entry is rate limited to once every 100ms. This rework is also used as preparation for emulating bridge offload by managing L4 offload entries on demand. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-06net: ethernet: mtk_eth_soc: allocate struct mtk_ppe separatelyFelix Fietkau
Preparation for adding more data to it, which will increase its size. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-06net: ethernet: mtk_eth_soc: add support for Wireless Ethernet Dispatch (WED)Felix Fietkau
The Wireless Ethernet Dispatch subsystem on the MT7622 SoC can be configured to intercept and handle access to the DMA queues and PCIe interrupts for a MT7615/MT7915 wireless card. It can manage the internal WDMA (Wireless DMA) controller, which allows ethernet packets to be passed from the packet switch engine (PSE) to the wireless card, bypassing the CPU entirely. This can be used to implement hardware flow offloading from ethernet to WLAN. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-06net: ethernet: mtk_eth_soc: add support for coherent DMAFelix Fietkau
It improves performance by eliminating the need for a cache flush on rx and tx In preparation for supporting WED (Wireless Ethernet Dispatch), also add a function for disabling coherent DMA at runtime. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-15net: ethernet: mtk_eth_soc: fix error checking in mtk_mac_config()Tom Rix
Clang static analysis reports this problem mtk_eth_soc.c:394:7: warning: Branch condition evaluates to a garbage value if (err) ^~~ err is not initialized and only conditionally set. So intitialize err. Fixes: 7e538372694b ("net: ethernet: mediatek: Re-add support SGMII") Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-05net: ethernet: mtk_eth_soc: implement Clause 45 MDIO accessDaniel Golle
Implement read and write access to IEEE 802.3 Clause 45 Ethernet phy registers while making use of new mdiobus_c45_regad and mdiobus_c45_devad helpers. Tested on the Ubiquiti UniFi 6 LR access point featuring MediaTek MT7622BV WiSoC with Aquantia AQR112C. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-05net: ethernet: mtk_eth_soc: fix return values and refactor MDIO opsDaniel Golle
Instead of returning -1 (-EPERM) when MDIO bus is stuck busy while writing or 0xffff if it happens while reading, return the appropriate -ETIMEDOUT. Also fix return type to int instead of u32. Refactor functions to use bitfield helpers instead of having various masking and shifting constants in the code, which also results in the register definitions in the header file being more obviously related to what is stated in the MediaTek's Reference Manual. Fixes: 656e705243fd0 ("net-next: mediatek: add support for MT7623 ethernet") Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-17net: mtk_eth_soc: delete an unneeded variableDan Carpenter
There is already an "int err" declared at the start of the function so re-use that instead of declaring a shadow err variable. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20211217070735.GC26548@kili Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-09net: mtk_eth_soc: mark as a legacy_pre_march2020 driverRussell King (Oracle)
mtk_eth_soc has not been updated for commit 7cceb599d15d ("net: phylink: avoid mac_config calls"), and makes use of state->speed and state->duplex in contravention of the phylink documentation. This makes reliant on the legacy behaviours, so mark it as a legacy driver. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-17net: mtk_eth_soc: use phylink_generic_validate()Russell King (Oracle)
mtk_eth_soc has no special behaviour in its validation implementation, so can be switched to phylink_generic_validate(). Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-17net: mtk_eth_soc: drop use of phylink_helper_basex_speed()Russell King (Oracle)
Now that we have a better method to select SFP interface modes, we no longer need to use phylink_helper_basex_speed() in a driver's validation function, and we can also get rid of our hack to indicate both 1000base-X and 2500base-X if the comphy is present to make that work. Remove this hack and use of phylink_helper_basex_speed(). Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-17net: mtk_eth_soc: remove interface checks in mtk_validate()Russell King (Oracle)
As phylink checks the interface mode against the supported_interfaces bitmap, we no longer need to validate the interface mode, nor handle PHY_INTERFACE_MODE_NA in the validation function. Remove these to simplify the implementation. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-17net: mtk_eth_soc: populate supported_interfaces memberRussell King (Oracle)
Populate the phy interface mode bitmap for the Mediatek driver with interfaces modes supported by the MAC. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-10-07ethernet: use of_get_ethdev_address()Jakub Kicinski
Use the new of_get_ethdev_address() helper for the cases where dev->dev_addr is passed in directly as the destination. @@ expression dev, np; @@ - of_get_mac_address(np, dev->dev_addr) + of_get_ethdev_address(np, dev) Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-27dev_ioctl: split out ndo_eth_ioctlArnd Bergmann
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>
2021-05-23net: ethernet: mtk_eth_soc: Fix packet statistics support for MT7628/88Stefan Roese
The MT7628/88 SoC(s) have other (limited) packet counter registers than currently supported in the mtk_eth_soc driver. This patch adds support for reading these registers, so that the packet statistics are correctly updated. Additionally the defines for the non-MT7628 variant packet counter registers are added and used in this patch instead of using hard coded values. Signed-off-by: Stefan Roese <sr@denx.de> Fixes: 296c9120752b ("net: ethernet: mediatek: Add MT7628/88 SoC support") Cc: Felix Fietkau <nbd@nbd.name> Cc: John Crispin <john@phrozen.org> Cc: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Cc: Reto Schneider <code@reto-schneider.ch> Cc: Reto Schneider <reto.schneider@husqvarnagroup.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-05-21net: ethernet: mtk_eth_soc: Fix DIM support for MT7628/88Stefan Roese
When updating to latest mainline for some testing on the GARDENA smart gateway based on the MT7628, I noticed that ethernet does not work any more. Commit e9229ffd550b ("net: ethernet: mtk_eth_soc: implement dynamic interrupt moderation") introduced this problem, as it missed the RX_DIM & TX_DIM configuration for this SoC variant. This patch fixes this by calling mtk_dim_rx() & mtk_dim_tx() in this case as well. Signed-off-by: Stefan Roese <sr@denx.de> Fixes: e9229ffd550b ("net: ethernet: mtk_eth_soc: implement dynamic interrupt moderation") Cc: Felix Fietkau <nbd@nbd.name> Cc: John Crispin <john@phrozen.org> Cc: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Cc: Reto Schneider <code@reto-schneider.ch> Cc: Reto Schneider <reto.schneider@husqvarnagroup.com> Cc: David S. Miller <davem@davemloft.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: use iopoll.h macro for DMA initIlya Lipnitskiy
Replace a tight busy-wait loop without a pause with a standard readx_poll_timeout_atomic routine with a 5 us poll period. Tested by booting a MT7621 device to ensure the driver initializes properly. Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: set PPE flow hash as skb hash if presentFelix Fietkau
This improves GRO performance Signed-off-by: Felix Fietkau <nbd@nbd.name> [Ilya: Use MTK_RXD4_FOE_ENTRY instead of GENMASK(13, 0)] Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: rework NAPI callbacksIlya Lipnitskiy
Use napi_complete_done to communicate total TX and RX work done to NAPI. Count total RX work up instead of remaining work down for clarity. Remove unneeded local variables for clarity. Use do {} while instead of goto for clarity. Suggested-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: reduce unnecessary interruptsFelix Fietkau
Avoid rearming interrupt if napi_complete returns false Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: only read the full RX descriptor if DMA is doneFelix Fietkau
Uncached memory access is expensive, and there is no need to access all descriptor words if we can't process them anyway Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: cache HW pointer of last freed TX descriptorFelix Fietkau
The value is only updated by the CPU, so it is cheaper to access from the ring data structure than from a hardware register. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: implement dynamic interrupt moderationFelix Fietkau
Reduces the number of interrupts under load Signed-off-by: Felix Fietkau <nbd@nbd.name> [Ilya: add documentation for new struct fields] Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: use larger burst size for QDMA TXFelix Fietkau
Improves tx performance Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: remove unnecessary TX queue stopsFelix Fietkau
When running short on descriptors, only stop the queue for the netdev that tx was attempted for. By the time something tries to send on the other netdev, the ring might have some more room already. Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: reduce MDIO bus access latencyFelix Fietkau
usleep_range often ends up sleeping much longer than the 10-20us provided as a range here. This causes significant latency in mdio bus acceses, which easily adds multiple seconds to the boot time on MT7621 when polling DSA slave ports. Use cond_resched instead of usleep_range, since the MDIO access does not take much time Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: use napi_consume_skbFelix Fietkau
Should improve performance, since it can use bulk free Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: fix build_skb cleanupIlya Lipnitskiy
In case build_skb fails, call skb_free_frag on the correct pointer. Also update the DMA structures with the new mapping before exiting, because the mapping was successful Suggested-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: unmap RX data before calling build_skbFelix Fietkau
Since build_skb accesses the data area (for initializing shinfo), dma unmap needs to happen before that call Signed-off-by: Felix Fietkau <nbd@nbd.name> [Ilya: split build_skb cleanup fix into a separate commit] Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-23net: ethernet: mtk_eth_soc: fix RX VLAN offloadFelix Fietkau
The VLAN ID in the rx descriptor is only valid if the RX_DMA_VTAG bit is set. Fixes frames wrongly marked with VLAN tags. Signed-off-by: Felix Fietkau <nbd@nbd.name> [Ilya: fix commit message] Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-13of: net: pass the dst buffer to of_get_mac_address()Michael Walle
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>
2021-03-31net: mediatek: add flow offload for mt7623Frank Wunderlich
mt7623 uses offload version 2 too tested on Bananapi-R2 Signed-off-by: Frank Wunderlich <frank-w@public-files.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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