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path: root/drivers/net/ethernet
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2020-09-27net: hns3: add a structure for IR shaper's parameter in hclge_shaper_para_calc()Huazhong Tan2-44/+49
As function hclge_shaper_para_calc() has too many arguments to add more, so encapsulate its three arguments ir_b, ir_u, ir_s into a structure. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: add a check for device specifications queried from firmwareGuangbin Huang2-0/+28
The device specifications querying is unsupported by the old firmware, in this case, these specifications are 0. However, some specifications should not be 0 or will cause problem. So after querying from firmware, some device specifications are needed to check their value and set to default value if their values are 0. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: replace the macro of max tm rate with the queried specificationGuangbin Huang5-13/+29
The max tm rate is a fixed value(100Gb/s) now as it is defined by a macro. In order to support other rates in different kinds of device, it is better to use specification queried from firmware to replace this macro. As function hclge_shaper_para_calc() has too many arguments to add more, so encapsulate its three arguments ir_b, ir_u, ir_s into a structure. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: add support to query device specificationsGuangbin Huang5-1/+167
To improve code maintainability and compatibility, new commands HCLGE_OPC_QUERY_DEV_SPECS for PF and HCLGEVF_OPC_QUERY_DEV_SPECS for VF are introduced to query device specifications, instead of statically defining specifications by checking the hardware version or other methods. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: add debugfs to dump device capabilitiesGuangbin Huang1-0/+24
Adds debugfs to dump each device capability whether is supported. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: use capabilities queried from firmwareGuangbin Huang6-19/+145
In order to improve code maintainability and compatibility, the capabilities of new features are queried from firmware. The member flag in struct hnae3_ae_dev indicates not only capabilities, but some initialized status. As capabilities bits queried from firmware is too many, it is better to use new member to indicate them. So adds member capabs in struce hnae3_ae_dev. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: use capability flag to indicate FECGuangbin Huang4-4/+11
Currently, the revision of the pci device is used to identify whether FEC is supported, which is not good for maintainability and compatibility. So use a capability flag to do that. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: add support to query device capabilityGuangbin Huang5-18/+29
In order to improve code maintainability and compatibility, add support to query the device capability by expanding the existing version query command. The device capability refers to the features supported by the device. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: delete redundant PCI revision judgementGuangbin Huang2-5/+1
Fibre device of PCI revision 0x20 don't support autoneg, and the ops get_autoneg() return AUTONEG_DISABLE so function hns3_nway_reset() will return earlier than judging PCI revision. Function hclge_handle_rocee_ras_error() don't need to judge PCI revision again because its caller hclge_handle_hw_ras_error() has judged once. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27net: hns3: add device version to replace pci revisionGuangbin Huang10-69/+100
To better identify the device version, struct hnae3_handle adds a member dev_version to replace pci revision. The dev_version consists of hardware version and PCI revision. The hardware version is queried from firmware by an existing firmware version query command. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-27mlxsw: spectrum_acl: Fix mlxsw_sp_acl_tcam_group_add()'s error pathIdo Schimmel1-1/+2
If mlxsw_sp_acl_tcam_group_id_get() fails, the mutex initialized earlier is not destroyed. Fix this by initializing the mutex after calling the function. This is symmetric to mlxsw_sp_acl_tcam_group_del(). Fixes: 5ec2ee28d27b ("mlxsw: spectrum_acl: Introduce a mutex to guard region list updates") Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-26net: mscc: ocelot: move NPI port configuration to DSAVladimir Oltean2-37/+10
Remove the ocelot_configure_cpu() function, which was in fact bringing up 2 ports: the CPU port module, which both switchdev and DSA have, and the NPI port, which only DSA has. The (non-Ethernet) CPU port module is at a fixed index in the analyzer, whereas the NPI port is selected through the "ethernet" property in the device tree. Therefore, the function to set up an NPI port is DSA-specific, so we move it there, simplifying the ocelot switch library a little bit. Cc: Horatiu Vultur <horatiu.vultur@microchip.com> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: UNGLinuxDriver <UNGLinuxDriver@microchip.com> Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25ice: add support for flash update overwrite maskJacob Keller3-4/+33
Support the recently added DEVLINK_ATTR_FLASH_UPDATE_OVERWRITE_MASK parameter in the ice flash update handler. Convert the overwrite mask bitfield into the appropriate preservation level used by the firmware when updating. Because there is no equivalent preservation level for overwriting only identifiers, this combination is rejected by the driver as not supported with an appropriate extended ACK message. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25devlink: convert flash_update to use params structureJacob Keller7-25/+23
The devlink core recently gained support for checking whether the driver supports a flash_update parameter, via `supported_flash_update_params`. However, parameters are specified as function arguments. Adding a new parameter still requires modifying the signature of the .flash_update callback in all drivers. Convert the .flash_update function to take a new `struct devlink_flash_update_params` instead. By using this structure, and the `supported_flash_update_params` bit field, a new parameter to flash_update can be added without requiring modification to existing drivers. As before, all parameters except file_name will require driver opt-in. Because file_name is a necessary field to for the flash_update to make sense, no "SUPPORTED" bitflag is provided and it is always considered valid. All future additional parameters will require a new bit in the supported_flash_update_params bitfield. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Cc: Jiri Pirko <jiri@mellanox.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Bin Luo <luobin9@huawei.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: Ido Schimmel <idosch@mellanox.com> Cc: Danielle Ratson <danieller@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25devlink: check flash_update parameter support in net coreJacob Keller7-30/+5
When implementing .flash_update, drivers which do not support per-component update are manually checking the component parameter to verify that it is NULL. Without this check, the driver might accept an update request with a component specified even though it will not honor such a request. Instead of having each driver check this, move the logic into net/core/devlink.c, and use a new `supported_flash_update_params` field in the devlink_ops. Drivers which will support per-component update must now specify this by setting DEVLINK_SUPPORT_FLASH_UPDATE_COMPONENT in the supported_flash_update_params in their devlink_ops. This helps ensure that drivers do not forget to check for a NULL component if they do not support per-component update. This also enables a slightly better error message by enabling the core stack to set the netlink bad attribute message to indicate precisely the unsupported attribute in the message. Going forward, any new additional parameter to flash update will require a bit in the supported_flash_update_params bitfield. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Cc: Jiri Pirko <jiri@mellanox.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Bin Luo <luobin9@huawei.com> Cc: Saeed Mahameed <saeedm@mellanox.com> Cc: Leon Romanovsky <leon@kernel.org> Cc: Ido Schimmel <idosch@mellanox.com> Cc: Danielle Ratson <danieller@mellanox.com> Cc: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: atlantic: fix build when object tree is separateIgor Russkikh1-2/+2
Driver subfolder files refer parent folder includes in an absolute manner. Makefile contains a -I for this, but apparently that does not work if object tree is separated. Adding srctree to fix that. Signed-off-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25dpaa2-mac: Fix potential null pointer dereferenceGustavo A. R. Silva1-1/+1
There is a null-check for _pcs_, but it is being dereferenced prior to this null-check. So, if _pcs_ can actually be null, then there is a potential null pointer dereference that should be fixed by null-checking _pcs_ before being dereferenced. Addresses-Coverity-ID: 1497159 ("Dereference before null check") Fixes: 94ae899b2096 ("dpaa2-mac: add PCS support through the Lynx module") Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25dpaa2-eth: install a single steering rule when SHARED_FS is enabledIonut-robert Aron3-1/+17
When SHARED_FS is enabled on a DPNI object the flow steering tables are shared between all the traffic classes. Modify the driver so that we only add a new flow steering entry on the TC#0 when this new option is enabled. Signed-off-by: Ionut-robert Aron <ionut-robert.aron@nxp.com> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25dpaa2-eth: no need to check link state right after ndo_openIoana Ciornei1-12/+1
The call to dpaa2_eth_link_state_update() is a leftover from the time when on DPAA2 platforms the PHYs were started at boot time so when an ifconfig was issued on the associated interface, the link status needed to be checked directly from the ndo_open() callback. This is not needed anymore since we are now properly integrated with the PHY layer thus a link interrupt will come directly from the PHY eventually without the need to call the sync function. Fix this up by removing the call to dpaa2_eth_link_state_update(). Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25dpaa2-mac: do not check for both child and parent DTS nodesIoana Ciornei1-2/+1
There is no need to check if both the MDIO controller node and its child node, the PCS device, are available since there is no chance that the child node would be enabled when the parent it's not. Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25dpaa2-eth: fix command version for Tx shapingIoana Ciornei1-1/+3
When adding the support for TBF offload, the improper command version was added even though the command format is for the V2 of dpni_set_tx_shaping(). This does not affect the functionality of TBF since the only change between these two versions is the addition of the exceeded parameters which are not used in TBF. Still, fix the bug so that we keep things in sync. Fixes: 39344a89623d ("dpaa2-eth: add API for Tx shaping") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: ethernet: cavium: octeon_mgmt: use phy_start and phy_stopIvan Khoronzhuk1-2/+4
To start also "phy state machine", with UP state as it should be, the phy_start() has to be used, in another case machine even is not triggered. After this change negotiation is supposed to be triggered by SM workqueue. It's not correct usage, but it appears after the following patch, so add it as a fix. Fixes: 74a992b3598a ("net: phy: add phy_check_link_status") Signed-off-by: Ivan Khoronzhuk <ikhoronz@cisco.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: stmmac: Fix clock handling on remove pathWong Vee Khee1-1/+0
While unloading the dwmac-intel driver, clk_disable_unprepare() is being called twice in stmmac_dvr_remove() and intel_eth_pci_remove(). This causes kernel panic on the second call. Removing the second call of clk_disable_unprepare() in intel_eth_pci_remove(). Fixes: 09f012e64e4b ("stmmac: intel: Fix clock handling on error and remove paths") Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Voon Weifeng <weifeng.voon@intel.com> Signed-off-by: Wong Vee Khee <vee.khee.wong@intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: stmmac: Add option for VLAN filter fail queue enableChuah, Kim Tatt6-2/+30
Add option in plat_stmmacenet_data struct to enable VLAN Filter Fail Queuing. This option allows packets that fail VLAN filter to be routed to a specific Rx queue when Receive All is also set. When this option is enabled: - Enable VFFQ only when entering promiscuous mode, because Receive All will pass up all rx packets that failed address filtering (similar to promiscuous mode). - VLAN-promiscuous mode is never entered to allow rx packet to fail VLAN filters and get routed to selected VFFQ Rx queue. Reviewed-by: Voon Weifeng <weifeng.voon@intel.com> Reviewed-by: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: Chuah, Kim Tatt <kim.tatt.chuah@intel.com> Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: clean up mis-targeted commentsJesse Brandeburg72-682/+794
As part of the W=1 cleanups for ethernet, a million [*] driver comments had to be cleaned up to get the W=1 compilation to succeed. This change finally makes the drivers/net/ethernet tree compile with W=1 set on the command line. NOTE: The kernel uses kdoc style (see Documentation/process/kernel-doc.rst) when documenting code, not doxygen or other styles. After this patch the x86_64 build has no warnings from W=1, however scripts/kernel-doc says there are 1545 more warnings in source files, that I need to develop a script to fix in a followup patch. The errors fixed here are all kdoc of a few classes, with a few outliers: In file included from drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c:10: drivers/net/ethernet/qlogic/netxen/netxen_nic.h:1193:18: warning: ‘FW_DUMP_LEVELS’ defined but not used [-Wunused-const-variable=] 1193 | static const u32 FW_DUMP_LEVELS[] = { 0x3, 0x7, 0xf, 0x1f, 0x3f, 0x7f, 0xff }; | ^~~~~~~~~~~~~~ ... repeats 4 times... drivers/net/ethernet/sun/cassini.c:2084:24: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body] 2084 | RX_USED_ADD(page, i); drivers/net/ethernet/natsemi/ns83820.c: In function ‘phy_intr’: drivers/net/ethernet/natsemi/ns83820.c:603:6: warning: variable ‘tbisr’ set but not used [-Wunused-but-set-variable] 603 | u32 tbisr, tanar, tanlpar; | ^~~~~ drivers/net/ethernet/natsemi/ns83820.c: In function ‘ns83820_get_link_ksettings’: drivers/net/ethernet/natsemi/ns83820.c:1207:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable] 1207 | u32 cfg, tanar, tbicr; | ^~~~~ drivers/net/ethernet/packetengines/yellowfin.c:1063:18: warning: variable ‘yf_size’ set but not used [-Wunused-but-set-variable] 1063 | int data_size, yf_size; | ^~~~~~~ Normal kdoc fixes: warning: Function parameter or member 'x' not described in 'y' warning: Excess function parameter 'x' description in 'y' warning: Cannot understand <string> on line <NNN> - I thought it was a doc line [*] - ok it wasn't quite a million, but it felt like it. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25sfc: fix kdoc warningJesse Brandeburg2-1/+2
kernel-doc script as used by W=1, is confused by the macro usage inside the header describing the efx_ptp_data struct. drivers/net/ethernet/sfc/ptp.c:345: warning: Function parameter or member 'MC_CMD_PTP_IN_TRANSMIT_LENMAX' not described in 'efx_ptp_data' After some discussion on the list, break this patch out to a separate one, and fix the issue through a creative macro declaration. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: remove incorrectly formatted docJesse Brandeburg3-15/+15
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>
2020-09-25drivers/net/ethernet: add some basic kdoc tagsJesse Brandeburg2-2/+2
A couple of drivers had a "generic documentation" section that would trigger a "can't understand" message from W=1 compiles. Fix by using correct DOC: tags in the generic sections. Fixed Warnings: drivers/net/ethernet/arc/emac_arc.c:4: info: Scanning doc for c drivers/net/ethernet/cadence/macb_pci.c:3: warning: missing initial short description on line: * Cadence GEM PCI wrapper. drivers/net/ethernet/cadence/macb_pci.c:3: info: Scanning doc for Cadence Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: handle one warning explicitlyJesse Brandeburg1-0/+10
While fixing the W=1 builds, this warning came up because the developers used a very tricky way to get structures initialized to a non-zero value, but this causes GCC to warn about an override. In this case the override was intentional, so just disable the warning for this code with a kernel macro that results in disabling the warning for compiles on GCC versions after 8. It is not appropriate to change the struct to initialize all the values as it will just add a lot more code for no value. The code is completely correct as is, we just want to acknowledge that this code could generate a warning and we're ok with that. NOTE: the __diag_ignore macro currently only accepts a second argument of 8 (version 80000), it's either use this one or open code the pragma. Fixed Warnings example (all the same): drivers/net/ethernet/renesas/sh_eth.c:51:12: warning: initialized field overwritten [-Woverride-init] drivers/net/ethernet/renesas/sh_eth.c:52:12: warning: initialized field overwritten [-Woverride-init] drivers/net/ethernet/renesas/sh_eth.c:53:13: warning: initialized field overwritten [-Woverride-init] + 256 more... Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: rid ethernet of no-prototype warningsJesse Brandeburg2-0/+2
The W=1 builds showed a few files exporting functions (non-static) that were not prototyped. What actually happened is that there were prototypes, but the include file was forgotten in the implementation file. Add the include file and remove the warnings. Fixed Warnings: drivers/net/ethernet/cavium/liquidio/cn68xx_device.c:124:5: warning: no previous prototype for ‘lio_setup_cn68xx_octeon_device’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:159:1: warning: no previous prototype for ‘octeon_pci_read_core_mem’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:168:1: warning: no previous prototype for ‘octeon_pci_write_core_mem’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:176:5: warning: no previous prototype for ‘octeon_read_device_mem64’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:185:5: warning: no previous prototype for ‘octeon_read_device_mem32’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:194:6: warning: no previous prototype for ‘octeon_write_device_mem32’ [-Wmissing-prototypes] drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c:453:6: warning: no previous prototype for ‘hclge_dcb_ops_set’ [-Wmissing-prototypes] Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: clean up unused assignmentsJesse Brandeburg15-84/+37
As part of the W=1 compliation series, these lines all created warnings about unused variables that were assigned a value. Most of them are from register reads, but some are just picking up a return value from a function and never doing anything with it. Fixed warnings: .../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable] .../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable] .../ethernet/cortina/gemini.c:512:6: warning: variable ‘val’ set but not used [-Wunused-but-set-variable] .../ethernet/cortina/gemini.c:2110:21: warning: variable ‘config0’ set but not used [-Wunused-but-set-variable] .../ethernet/cavium/liquidio/octeon_device.c:1327:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/cavium/liquidio/octeon_device.c:1358:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/dec/tulip/media.c:322:8: warning: variable ‘setup’ set but not used [-Wunused-but-set-variable] .../ethernet/dec/tulip/de4x5.c:4928:13: warning: variable ‘r3’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:4981:6: warning: variable ‘rx_status’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:6510:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:6087: warning: cannot understand function prototype: 'struct hw_regs ' .../ethernet/microchip/lan743x_main.c:161:6: warning: variable ‘int_en’ set but not used [-Wunused-but-set-variable] .../ethernet/microchip/lan743x_main.c:1702:6: warning: variable ‘int_sts’ set but not used [-Wunused-but-set-variable] .../ethernet/microchip/lan743x_main.c:3041:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] .../ethernet/natsemi/ns83820.c:603:6: warning: variable ‘tbisr’ set but not used [-Wunused-but-set-variable] .../ethernet/natsemi/ns83820.c:1207:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable] .../ethernet/marvell/mvneta.c:754:6: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:33:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:160:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:490:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:2378:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/packetengines/yellowfin.c:1063:18: warning: variable ‘yf_size’ set but not used [-Wunused-but-set-variable] .../ethernet/realtek/8139cp.c:1242:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/mellanox/mlx4/en_tx.c:858:6: warning: variable ‘ring_cons’ set but not used [-Wunused-but-set-variable] .../ethernet/sis/sis900.c:792:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:878:11: warning: variable ‘rx_ev_pkt_type’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:877:23: warning: variable ‘rx_ev_mcast_pkt’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:877:7: warning: variable ‘rx_ev_hdr_type’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:876:7: warning: variable ‘rx_ev_other_err’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:1646:21: warning: variable ‘buftbl_min’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:2535:32: warning: variable ‘spec’ set but not used [-Wunused-but-set-variable] .../ethernet/via/via-velocity.c:880:6: warning: variable ‘curr_status’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/tlan.c:656:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/davinci_emac.c:1230:6: warning: variable ‘num_tx_pkts’ set but not used [-Wunused-but-set-variable] .../ethernet/synopsys/dwc-xlgmac-common.c:516:8: warning: variable ‘str’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/cpsw_new.c:1662:22: warning: variable ‘priv’ set but not used [-Wunused-but-set-variable] The register reads should be OK, because the current implementation of readl and friends will always execute even without an lvalue. When it makes sense, just remove the lvalue assignment and the local. Other times, just remove the offending code, and occasionally, just mark the variable as maybe unused since it could be used in an ifdef or debug scenario. Only compile tested with W=1. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25intel: handle unused assignmentsJesse Brandeburg3-145/+127
Remove variables that were storing a return value from a register read or other read, where the return value wasn't used. Those conversions to remove the lvalue of the assignment should be safe because the readl memory mapped reads are marked volatile and should not be optimized out without an lvalue (I suspect a very long time ago this wasn't guaranteed as it is today). These changes are part of a separate patch to make it easier to review. Warnings Fixed: .../intel/e100.c:2596:9: warning: variable ‘err’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:101:6: warning: variable ‘icr_reg’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:277:6: warning: variable ‘ctrl_reg’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:952:15: warning: variable ‘temp_reg’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:1164:7: warning: variable ‘mdio_reg’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:132:6: warning: variable ‘ret_val’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:380:6: warning: variable ‘icr’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:2378:6: warning: variable ‘signal’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:2374:6: warning: variable ‘ctrl’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:2373:6: warning: variable ‘rxcw’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:4678:15: warning: variable ‘temp’ set but not used [-Wunused-but-set-variable] Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25intel-ethernet: clean up W=1 warnings in kdocJesse Brandeburg38-129/+185
This takes care of all of the trivial W=1 fixes in the Intel Ethernet drivers, which allows developers and maintainers to build more of the networking tree with more complete warning checks. There are three classes of kdoc warnings fixed: - cannot understand function prototype: 'x' - Excess function parameter 'x' description in 'y' - Function parameter or member 'x' not described in 'y' All of the changes were trivial comment updates on function headers. Inspired by Lee Jones' series of wireless work to do the same. Compile tested only, and passes simple test of $ git ls-files *.[ch] | egrep drivers/net/ethernet/intel | \ xargs scripts/kernel-doc -none Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25ice: fix memory leak in ice_vsi_setupJacob Keller1-1/+13
During ice_vsi_setup, if ice_cfg_vsi_lan fails, it does not properly release memory associated with the VSI rings. If we had used devres allocations for the rings, this would be ok. However, we use kzalloc and kfree_rcu for these ring structures. Using the correct label to cleanup the rings during ice_vsi_setup highlights an issue in the ice_vsi_clear_rings function: it can leave behind stale ring pointers in the q_vectors structure. When releasing rings, we must also ensure that no q_vector associated with the VSI will point to this ring again. To resolve this, loop over all q_vectors and release their ring mapping. Because we are about to free all rings, no q_vector should remain pointing to any of the rings in this VSI. Fixes: 5513b920a4f7 ("ice: Update Tx scheduler tree for VSI multi-Tx queue support") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-09-25ice: fix memory leak if register_netdev_failsJacob Keller3-19/+6
The ice_setup_pf_sw function can cause a memory leak if register_netdev fails, due to accidentally failing to free the VSI rings. Fix the memory leak by using ice_vsi_release, ensuring we actually go through the full teardown process. This should be safe even if the netdevice is not registered because we will have set the netdev pointer to NULL, ensuring ice_vsi_release won't call unregister_netdev. An alternative fix would be moving management of the PF VSI netdev into the main VSI setup code. This is complicated and likely requires significant refactor in how we manage VSIs Fixes: 3a858ba392c3 ("ice: Add support for VSI allocation and deallocation") Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-09-25ice: Fix call trace on suspendAnirudh Venkataramanan1-0/+1
It appears that the ice_suspend flow is missing a call to pci_save_state and this is triggering the message "State of device not saved by ice_suspend" and a call trace. Fix it. Fixes: 769c500dcc1e ("ice: Add advanced power mgmt for WoL") Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-09-25iavf: Fix incorrect adapter get in iavf_resumeSylwester Dziedziuch1-2/+2
When calling iavf_resume there was a crash because wrong function was used to get iavf_adapter and net_device pointers. Changed how iavf_resume is getting iavf_adapter and net_device pointers from pci_dev. Fixes: 5eae00c57f5e ("i40evf: main driver core") Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2020-09-25sgiseeq: convert to dma_alloc_noncoherentChristoph Hellwig1-10/+18
Use the new non-coherent DMA API including proper ownership transfers. This includes adding additional calls to dma_sync_desc_dev as the old syncing was rather ad-hoc. Thanks to Thomas Bogendoerfer for debugging the ownership transfer issues. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-09-25lib82596: convert to dma_alloc_noncoherentChristoph Hellwig3-63/+80
Use the new non-coherent DMA API including proper ownership transfers. This includes moving the DMA helpers to lib82596 based of an ifdef to avoid include order problems. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> (SNI part)
2020-09-25lib82596: move DMA allocation into the callers of i82596_probeChristoph Hellwig3-39/+40
This allows us to get rid of the LIB82596_DMA_ATTR defined and prepare for untangling the coherent vs non-coherent DMA allocation API. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> (SNI part)
2020-09-25net/au1000-eth: stop using DMA_ATTR_NON_CONSISTENTChristoph Hellwig1-9/+6
The au1000-eth driver contains none of the manual cache synchronization required for using DMA_ATTR_NON_CONSISTENT. From what I can tell it can be used on both dma coherent and non-coherent DMA platforms, but I suspect it has been buggy on the non-coherent platforms all along. Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-09-24net: hns3: rename macro of pci device id of vfGuangbin Huang3-8/+9
VF devices do not have speed division, its speed is depended on its PF. So macro name of PCI device id of VF is incorrent to have 100G info, it should be renamed by removing 100G info. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net: hns3: add support for 200G deviceGuangbin Huang5-11/+55
The 200G device has a new device id 0xA228, so adds this device id to pci table, then the driver can probe it. As speed_ability queried from firmware has only 8 bits and already be used up, so firmware adds extra speed_ability_ext to indicate more speed abilities to support 200G and driver needs to parse it. Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net: hns3: add debugfs of dumping pf interrupt resourcesYufeng Mo2-0/+13
The pf's interrupt resources will be changed with the number of enabled pf. Dumping this resource information will be helpful for debugging. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net: hns3: add a hardware error detect typeYufeng Mo3-0/+5
In hns3_process_hw_error(), the hardware error detection of the ROCEE AXI RESP error type is added. When this error occurs, the client needs to be notified of this error and take corresponding operation. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net: hns3: remove unnecessary variable initializationYufeng Mo6-9/+9
If a variable is assigned a value before it is used, it's no need to assign an initial value to the variable. So remove these redundant operations. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net: hns3: refactor the function for dumping tc information in debugfsYufeng Mo1-10/+5
Remove some unnecessary parameters of hclge_title_idx_print(), and rename this function for readability. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net/fsl: quieten expected MDIO access failuresJamie Iles1-1/+1
MDIO reads can happen during PHY probing, and printing an error with dev_err can result in a large number of error messages during device probe. On a platform with a serial console this can result in excessively long boot times in a way that looks like an infinite loop when multiple busses are present. Since 0f183fd151c (net/fsl: enable extended scanning in xgmac_mdio) we perform more scanning so there are potentially more failures. Reduce the logging level to dev_dbg which is consistent with the Freescale enetc driver. Cc: Jeremy Linton <jeremy.linton@arm.com> Signed-off-by: Jamie Iles <jamie@nuviainc.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24net/ethernet/broadcom: fix spelling typoWang Qing1-8/+8
Modify the comment typo: "compliment" -> "complement". Signed-off-by: Wang Qing <wangqing@vivo.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-24hinic: fix wrong return value of mac-set cmdLuo bin2-13/+5
It should also be regarded as an error when hw return status=4 for PF's setting mac cmd. Only if PF return status=4 to VF should this cmd be taken special treatment. Fixes: 7dd29ee12865 ("hinic: add sriov feature support") Signed-off-by: Luo bin <luobin9@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>