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d92e4e6e33
On Spectrum-1, timestamps arrive through a pair of dedicated events: MLXSW_TRAP_ID_PTP_ING_FIFO and _EGR_FIFO. The payload delivered with those traps is contents of the timestamp FIFO at a given port in a given direction. Add a Spectrum-1-specific handler for these two events which decodes the timestamps and forwards them to the PTP module. Add a function that parses a packet, dispatching to ptp_classify_raw(), and decodes PTP message type, domain number, and sequence ID. Add a new mlxsw dependency on the PTP classifier. Add helpers that can store and retrieve unmatched timestamps and SKBs to the hash table added in a preceding patch. Add the matching code itself: upon arrival of a timestamp or a packet, look up the corresponding unmatched entry, and match it up. If there is none, add a new unmatched entry. This logic is the same on ingress as on egress. Packets and timestamps that never matched need to be eventually disposed of. A garbage collector added in a follow-up patch will take care of that. Since currently all this code is turned off, no crud will accumulate in the hash table. Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
114 lines
3.3 KiB
Plaintext
114 lines
3.3 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Mellanox switch drivers configuration
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#
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config MLXSW_CORE
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tristate "Mellanox Technologies Switch ASICs support"
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select NET_DEVLINK
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---help---
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This driver supports Mellanox Technologies Switch ASICs family.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_core.
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config MLXSW_CORE_HWMON
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bool "HWMON support for Mellanox Technologies Switch ASICs"
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depends on MLXSW_CORE && HWMON
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depends on !(MLXSW_CORE=y && HWMON=m)
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default y
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---help---
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Say Y here if you want to expose HWMON interface on mlxsw devices.
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config MLXSW_CORE_THERMAL
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bool "Thermal zone support for Mellanox Technologies Switch ASICs"
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depends on MLXSW_CORE && THERMAL
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default y
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---help---
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Say Y here if you want to automatically control fans speed according
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ambient temperature reported by ASIC.
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config MLXSW_PCI
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tristate "PCI bus implementation for Mellanox Technologies Switch ASICs"
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depends on PCI && HAS_IOMEM && MLXSW_CORE
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default m
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---help---
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This is PCI bus implementation for Mellanox Technologies Switch ASICs.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_pci.
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config MLXSW_I2C
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tristate "I2C bus implementation for Mellanox Technologies Switch ASICs"
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depends on I2C && MLXSW_CORE
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default m
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---help---
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This is I2C bus implementation for Mellanox Technologies Switch ASICs.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_i2c.
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config MLXSW_SWITCHIB
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tristate "Mellanox Technologies SwitchIB and SwitchIB-2 support"
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depends on MLXSW_CORE && MLXSW_PCI && NET_SWITCHDEV
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default m
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---help---
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This driver supports Mellanox Technologies SwitchIB and SwitchIB-2
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Infiniband Switch ASICs.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_switchib.
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config MLXSW_SWITCHX2
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tristate "Mellanox Technologies SwitchX-2 support"
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depends on MLXSW_CORE && MLXSW_PCI && NET_SWITCHDEV
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default m
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---help---
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This driver supports Mellanox Technologies SwitchX-2 Ethernet
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Switch ASICs.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_switchx2.
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config MLXSW_SPECTRUM
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tristate "Mellanox Technologies Spectrum support"
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depends on MLXSW_CORE && MLXSW_PCI && NET_SWITCHDEV && VLAN_8021Q
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depends on PSAMPLE || PSAMPLE=n
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depends on BRIDGE || BRIDGE=n
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depends on IPV6 || IPV6=n
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depends on NET_IPGRE || NET_IPGRE=n
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depends on IPV6_GRE || IPV6_GRE=n
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depends on VXLAN || VXLAN=n
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select GENERIC_ALLOCATOR
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select PARMAN
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select OBJAGG
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select MLXFW
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imply PTP_1588_CLOCK
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select NET_PTP_CLASSIFY if PTP_1588_CLOCK
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default m
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---help---
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This driver supports Mellanox Technologies Spectrum Ethernet
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Switch ASICs.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_spectrum.
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config MLXSW_SPECTRUM_DCB
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bool "Data Center Bridging (DCB) support"
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depends on MLXSW_SPECTRUM && DCB
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default y
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---help---
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Say Y here if you want to use Data Center Bridging (DCB) in the
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driver.
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config MLXSW_MINIMAL
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tristate "Mellanox Technologies minimal I2C support"
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depends on MLXSW_CORE && MLXSW_I2C
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default m
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---help---
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This driver supports I2C access for Mellanox Technologies Switch
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ASICs.
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To compile this driver as a module, choose M here: the
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module will be called mlxsw_minimal.
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