Re: [U-Boot] [PATCH 0/6] Introduce DSA Ethernet switch class and Felix driver
Am 2019-11-22 02:36, schrieb Alex Marginean: DSA stands for Distributed Switch Architecture and it is a subsystem introduced in the Linux kernel to support switches that: - have an Ethernet link up to the CPU - use some form of tagging to identify the source/destination port for Rx/Tx - may be cascaded in tree-like structures. DSA is described in depth here: https://www.kernel.org/doc/Documentation/networking/dsa/dsa.txt From the doc: Summarized, this is basically how DSA looks like from a network device perspective: |--- | CPU network device (eth0)| | | || | Switch driver | || |||| || |---| |---| |---| | sw0p0 | | sw0p1 | | sw0p2 | |---| |---| |---| This patch set introduces a DSA class in U-Boot to support drivers of such switches. DSA drivers have to implement the following ops: - enable/disable of switch ports, - insert a tag in frames being transmitted, used by the switch to select the egress port, - parse a tag in frames being received, used for Rx traffic. DSA class code deals with presentation of switch ports as Ethernet interfaces, deals with the master Ethernet device for I/O and helps with parsing of the DT assuming the structure follows the DSA kernel binding. Support for switch cascading is not included yet. This patch set also introduces a driver for the Ethernet switch integrated into NXP LS1028A, called Felix. The switch has 4 front panel ports, I/O to/fom it is done though an ENETC Ethernet interface and meta-data is carried between the switch and the driver though an additional header pre-pended to the original frame. Network commands like tftp can be used on these front panel ports. The ports are disabled unless used so they do not cause issues on network topologies that include loops. Felix as seen on LS1028A RDB: => dm tree Class Index Probed DriverName --- .. dsa 0 [ + ] felix-switch | |-- felix-switch eth 4 [ + ] dsa-port | | |-- swp0 eth 5 [ + ] dsa-port | | |-- swp1 eth 6 [ + ] dsa-port | | |-- swp2 eth 7 [ + ] dsa-port | | `-- swp3 => mdio list .. 10 - Vitesse VSC8514 <--> swp0 11 - Vitesse VSC8514 <--> swp1 12 - Vitesse VSC8514 <--> swp2 13 - Vitesse VSC8514 <--> swp3 => tftp 8000 test Using swp2 device TFTP from server 192.168.100.1; our IP address is 192.168.100.100 Filename 'test'. Load address: 0x8000 Loading: # # 6.8 MiB/s done Bytes transferred = 949880 (e7e78 hex) This patch set replaces this previous submission of the Felix driver: https://patchwork.ozlabs.org/project/uboot/list/?series=143126=* and depends on: https://patchwork.ozlabs.org/project/uboot/list/?series=142858 https://patchwork.ozlabs.org/project/uboot/list/?series=142879 Alex Marginean (6): net: introduce DSA class for Ethernet switches drivers: net: add a DSA sandbox driver test: dm: add a simple unit test for DSA class drivers: net: add Felix DSA switch driver arm: dts: ls1028a: adds Ethernet switch node and its dependencies configs: ls1028a: enable the Ethernet switch driver in defconfig arch/Kconfig | 1 + arch/arm/dts/fsl-ls1028a-rdb.dts | 36 ++ arch/arm/dts/fsl-ls1028a.dtsi| 41 +- arch/sandbox/dts/test.dts| 49 ++ configs/ls1028aqds_tfa_SECURE_BOOT_defconfig | 3 +- configs/ls1028aqds_tfa_defconfig | 3 +- configs/ls1028ardb_tfa_SECURE_BOOT_defconfig | 3 +- configs/ls1028ardb_tfa_defconfig | 3 +- drivers/net/Kconfig | 21 + drivers/net/Makefile | 1 + drivers/net/dsa_sandbox.c| 272 +++ drivers/net/fsl_enetc.h | 5 + drivers/net/mscc_eswitch/Kconfig | 8 + drivers/net/mscc_eswitch/Makefile| 1 + drivers/net/mscc_eswitch/felix_switch.c | 453 +++ include/configs/sandbox.h| 4 + include/dm/uclass-id.h | 1 + include/dsa.h| 132 ++ net/Makefile | 1 + net/dsa-uclass.c |
Re: [U-Boot] [PATCH 0/6] Introduce DSA Ethernet switch class and Felix driver
On Fri, 22 Nov 2019 at 03:37, Alex Marginean wrote: > > DSA stands for Distributed Switch Architecture and it is a subsystem > introduced > in the Linux kernel to support switches that: > - have an Ethernet link up to the CPU > - use some form of tagging to identify the source/destination port for Rx/Tx > - may be cascaded in tree-like structures. > > DSA is described in depth here: > https://www.kernel.org/doc/Documentation/networking/dsa/dsa.txt > > From the doc: > > Summarized, this is basically how DSA looks like from a network device > perspective: > > > |--- > | CPU network device (eth0)| > > | | | > | | > |tag added by CPU> | > || > | Switch driver | > || > |||| || > |---| |---| |---| > | sw0p0 | | sw0p1 | | sw0p2 | > |---| |---| |---| > > This patch set introduces a DSA class in U-Boot to support drivers of such > switches. DSA drivers have to implement the following ops: > - enable/disable of switch ports, > - insert a tag in frames being transmitted, used by the switch to select the > egress port, > - parse a tag in frames being received, used for Rx traffic. > > DSA class code deals with presentation of switch ports as Ethernet interfaces, > deals with the master Ethernet device for I/O and helps with parsing of the DT > assuming the structure follows the DSA kernel binding. > > Support for switch cascading is not included yet. > > This patch set also introduces a driver for the Ethernet switch integrated > into > NXP LS1028A, called Felix. The switch has 4 front panel ports, I/O to/fom it > is > done though an ENETC Ethernet interface and meta-data is carried between the > switch and the driver though an additional header pre-pended to the original > frame. > Network commands like tftp can be used on these front panel ports. The ports > are disabled unless used so they do not cause issues on network topologies > that > include loops. > > Felix as seen on LS1028A RDB: > => dm tree > Class Index Probed DriverName > --- > .. > dsa 0 [ + ] felix-switch | |-- felix-switch > eth 4 [ + ] dsa-port | | |-- swp0 > eth 5 [ + ] dsa-port | | |-- swp1 > eth 6 [ + ] dsa-port | | |-- swp2 > eth 7 [ + ] dsa-port | | `-- swp3 > > => mdio list > .. > 10 - Vitesse VSC8514 <--> swp0 > 11 - Vitesse VSC8514 <--> swp1 > 12 - Vitesse VSC8514 <--> swp2 > 13 - Vitesse VSC8514 <--> swp3 > > => tftp 8000 test > Using swp2 device > TFTP from server 192.168.100.1; our IP address is 192.168.100.100 > Filename 'test'. > Load address: 0x8000 > Loading: # > # > > 6.8 MiB/s > done > Bytes transferred = 949880 (e7e78 hex) > > > > This patch set replaces this previous submission of the Felix driver: > https://patchwork.ozlabs.org/project/uboot/list/?series=143126=* > and depends on: > https://patchwork.ozlabs.org/project/uboot/list/?series=142858 > https://patchwork.ozlabs.org/project/uboot/list/?series=142879 > > Alex Marginean (6): > net: introduce DSA class for Ethernet switches > drivers: net: add a DSA sandbox driver > test: dm: add a simple unit test for DSA class > drivers: net: add Felix DSA switch driver > arm: dts: ls1028a: adds Ethernet switch node and its dependencies > configs: ls1028a: enable the Ethernet switch driver in defconfig > > arch/Kconfig | 1 + > arch/arm/dts/fsl-ls1028a-rdb.dts | 36 ++ > arch/arm/dts/fsl-ls1028a.dtsi| 41 +- > arch/sandbox/dts/test.dts| 49 ++ > configs/ls1028aqds_tfa_SECURE_BOOT_defconfig | 3 +- > configs/ls1028aqds_tfa_defconfig | 3 +- > configs/ls1028ardb_tfa_SECURE_BOOT_defconfig | 3 +- > configs/ls1028ardb_tfa_defconfig | 3 +- > drivers/net/Kconfig | 21 + > drivers/net/Makefile | 1 + > drivers/net/dsa_sandbox.c| 272 +++ > drivers/net/fsl_enetc.h | 5 + > drivers/net/mscc_eswitch/Kconfig | 8 + > drivers/net/mscc_eswitch/Makefile
[U-Boot] [PATCH 0/6] Introduce DSA Ethernet switch class and Felix driver
DSA stands for Distributed Switch Architecture and it is a subsystem introduced in the Linux kernel to support switches that: - have an Ethernet link up to the CPU - use some form of tagging to identify the source/destination port for Rx/Tx - may be cascaded in tree-like structures. DSA is described in depth here: https://www.kernel.org/doc/Documentation/networking/dsa/dsa.txt From the doc: Summarized, this is basically how DSA looks like from a network device perspective: |--- | CPU network device (eth0)| | | || | Switch driver | || |||| || |---| |---| |---| | sw0p0 | | sw0p1 | | sw0p2 | |---| |---| |---| This patch set introduces a DSA class in U-Boot to support drivers of such switches. DSA drivers have to implement the following ops: - enable/disable of switch ports, - insert a tag in frames being transmitted, used by the switch to select the egress port, - parse a tag in frames being received, used for Rx traffic. DSA class code deals with presentation of switch ports as Ethernet interfaces, deals with the master Ethernet device for I/O and helps with parsing of the DT assuming the structure follows the DSA kernel binding. Support for switch cascading is not included yet. This patch set also introduces a driver for the Ethernet switch integrated into NXP LS1028A, called Felix. The switch has 4 front panel ports, I/O to/fom it is done though an ENETC Ethernet interface and meta-data is carried between the switch and the driver though an additional header pre-pended to the original frame. Network commands like tftp can be used on these front panel ports. The ports are disabled unless used so they do not cause issues on network topologies that include loops. Felix as seen on LS1028A RDB: => dm tree Class Index Probed DriverName --- .. dsa 0 [ + ] felix-switch | |-- felix-switch eth 4 [ + ] dsa-port | | |-- swp0 eth 5 [ + ] dsa-port | | |-- swp1 eth 6 [ + ] dsa-port | | |-- swp2 eth 7 [ + ] dsa-port | | `-- swp3 => mdio list .. 10 - Vitesse VSC8514 <--> swp0 11 - Vitesse VSC8514 <--> swp1 12 - Vitesse VSC8514 <--> swp2 13 - Vitesse VSC8514 <--> swp3 => tftp 8000 test Using swp2 device TFTP from server 192.168.100.1; our IP address is 192.168.100.100 Filename 'test'. Load address: 0x8000 Loading: # # 6.8 MiB/s done Bytes transferred = 949880 (e7e78 hex) This patch set replaces this previous submission of the Felix driver: https://patchwork.ozlabs.org/project/uboot/list/?series=143126=* and depends on: https://patchwork.ozlabs.org/project/uboot/list/?series=142858 https://patchwork.ozlabs.org/project/uboot/list/?series=142879 Alex Marginean (6): net: introduce DSA class for Ethernet switches drivers: net: add a DSA sandbox driver test: dm: add a simple unit test for DSA class drivers: net: add Felix DSA switch driver arm: dts: ls1028a: adds Ethernet switch node and its dependencies configs: ls1028a: enable the Ethernet switch driver in defconfig arch/Kconfig | 1 + arch/arm/dts/fsl-ls1028a-rdb.dts | 36 ++ arch/arm/dts/fsl-ls1028a.dtsi| 41 +- arch/sandbox/dts/test.dts| 49 ++ configs/ls1028aqds_tfa_SECURE_BOOT_defconfig | 3 +- configs/ls1028aqds_tfa_defconfig | 3 +- configs/ls1028ardb_tfa_SECURE_BOOT_defconfig | 3 +- configs/ls1028ardb_tfa_defconfig | 3 +- drivers/net/Kconfig | 21 + drivers/net/Makefile | 1 + drivers/net/dsa_sandbox.c| 272 +++ drivers/net/fsl_enetc.h | 5 + drivers/net/mscc_eswitch/Kconfig | 8 + drivers/net/mscc_eswitch/Makefile| 1 + drivers/net/mscc_eswitch/felix_switch.c | 453 +++ include/configs/sandbox.h| 4 + include/dm/uclass-id.h | 1 + include/dsa.h| 132 ++ net/Makefile | 1 + net/dsa-uclass.c | 369 +++ test/dm/Makefile |
