| Message ID | 20250407102528.1048589-1-parvathi@couthit.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | PRU-ICSSM Ethernet Driver | expand |
On Mon, 7 Apr 2025 15:55:17 +0530 Parvathi Pudi wrote: > The Programmable Real-Time Unit Industrial Communication Sub-system (PRU-ICSS) > is available on the TI SOCs in two flavors: Gigabit ICSS (ICSSG) and the older > Megabit ICSS (ICSSM). > > Support for ICSSG Dual-EMAC mode has already been mainlined [1] and the > fundamental components/drivers such as PRUSS driver, Remoteproc driver, > PRU-ICSS INTC, and PRU-ICSS IEP drivers are already available in the mainline > Linux kernel. The current set of patch series builds on top of these components > and introduces changes to support the Dual-EMAC using ICSSM on the TI AM57xx, > AM437x and AM335x devices. > > AM335x, AM437x and AM57xx devices may have either one or two PRU-ICSS instances > with two 32-bit RISC PRU cores. Each PRU core has (a) dedicated Ethernet interface > (MII, MDIO), timers, capture modules, and serial communication interfaces, and > (b) dedicated data and instruction RAM as well as shared RAM for inter PRU > communication within the PRU-ICSS. This was posted prior to the "net-next is OPEN" announcement: https://lore.kernel.org/all/20250407055403.7a8f40df@kernel.org/ In the interest of fairness towards those who correctly wait for the tree to be open I will ask you to repost this again, in a couple of days. Thanks!
Hi, > On Mon, 7 Apr 2025 15:55:17 +0530 Parvathi Pudi wrote: >> The Programmable Real-Time Unit Industrial Communication Sub-system (PRU-ICSS) >> is available on the TI SOCs in two flavors: Gigabit ICSS (ICSSG) and the older >> Megabit ICSS (ICSSM). >> >> Support for ICSSG Dual-EMAC mode has already been mainlined [1] and the >> fundamental components/drivers such as PRUSS driver, Remoteproc driver, >> PRU-ICSS INTC, and PRU-ICSS IEP drivers are already available in the mainline >> Linux kernel. The current set of patch series builds on top of these components >> and introduces changes to support the Dual-EMAC using ICSSM on the TI AM57xx, >> AM437x and AM335x devices. >> >> AM335x, AM437x and AM57xx devices may have either one or two PRU-ICSS instances >> with two 32-bit RISC PRU cores. Each PRU core has (a) dedicated Ethernet >> interface >> (MII, MDIO), timers, capture modules, and serial communication interfaces, and >> (b) dedicated data and instruction RAM as well as shared RAM for inter PRU >> communication within the PRU-ICSS. > > This was posted prior to the "net-next is OPEN" announcement: > https://lore.kernel.org/all/20250407055403.7a8f40df@kernel.org/ > > In the interest of fairness towards those who correctly wait > for the tree to be open I will ask you to repost this again, > in a couple of days. > Sure, we will resubmit the patches along with changes based on the feedback received from Andrew Lunn and Keller, Jacob E shortly. Thanks and Regards, Parvathi.
Hi, The Programmable Real-Time Unit Industrial Communication Sub-system (PRU-ICSS) is available on the TI SOCs in two flavors: Gigabit ICSS (ICSSG) and the older Megabit ICSS (ICSSM). Support for ICSSG Dual-EMAC mode has already been mainlined [1] and the fundamental components/drivers such as PRUSS driver, Remoteproc driver, PRU-ICSS INTC, and PRU-ICSS IEP drivers are already available in the mainline Linux kernel. The current set of patch series builds on top of these components and introduces changes to support the Dual-EMAC using ICSSM on the TI AM57xx, AM437x and AM335x devices. AM335x, AM437x and AM57xx devices may have either one or two PRU-ICSS instances with two 32-bit RISC PRU cores. Each PRU core has (a) dedicated Ethernet interface (MII, MDIO), timers, capture modules, and serial communication interfaces, and (b) dedicated data and instruction RAM as well as shared RAM for inter PRU communication within the PRU-ICSS. These patches add support for the following features: - RX and TX over PRU Ethernet ports in Dual-EMAC mode - Full duplex with 100 Mbps link speed. - VLAN Filtering - Multicast Filtering - Promiscuous mode - Storm prevention - Interrupt coalescing - Linux PTP (ptp4l) Ordinary clock Further, note that these are the first set of patches for a single instance of PRU-ICSS Ethernet. Switch mode support for AM335x, AM437x and AM57x along with support for a second instance of PRU-ICSS on AM57x will be posted subsequently. The patches presented in this series have gone through the patch verification tools and no warnings or errors are reported. Sample test logs obtained from AM33x, AM43x and AM57x verifying the functionality on Linux next kernel are available here: [Interface up Testing](https://gist.github.com/ParvathiPudi/18dbbd143e43c66a7e427a8e63ef7cf8) [Ping Testing](https://gist.github.com/ParvathiPudi/cc0b05c902e27e98eeabf20ac0cf7eff) [Iperf Testing](https://gist.github.com/ParvathiPudi/8794e524d4257fb63205bc05678b23c5) [1] https://lore.kernel.org/all/20230106121046.886863-1-danishanwar@ti.com/ [2] https://lore.kernel.org/all/20250108125937.10604-1-basharath@couthit.com/ This is the v4 of the patch series [v1]. This version of the patchset addresses the comments made on [v3] of the series. Changes from v3 to v4 : *) Added support for AM33x and AM43x platforms. *) Removed SOC patch [2] and its dependencies. *) Addressed Jakub Kicinski, MD Danish Anwar and Nishanth Menon comments on cover letter of the series. *) Addressed Rob Herring comments on patch 1 of the series. *) Addressed Ratheesh Kannoth comments on patch 2 of the series. *) Addressed Maxime Chevallier comments on patch 4 of the series. *) Rebased the series on latest net-next. Changes from v2 to v3 : *) Addressed Conor Dooley comments on patch 1 of the series. *) Addressed Simon Horman comments on patch 2, 3, 4, 5 and 6 of the series. *) Addressed Joe Damato comments on patch 4 of the series. *) Rebased the series on latest net-next. Changes from v1 to v2 : *) Addressed Andrew Lunn, Rob Herring comments on patch 1 of the series. *) Addressed Andrew Lunn comments on patch 2, 3, and 4 of the series. *) Addressed Richard Cochran, Jason Xing comments on patch 6 of the series. *) Rebased patchset on next-202401xx linux-next. [v1] https://lore.kernel.org/all/20250109105600.41297-1-basharath@couthit.com/ [v2] https://lore.kernel.org/all/20250124122353.1457174-1-basharath@couthit.com/ [v3] https://lore.kernel.org/all/20250214054702.1073139-1-parvathi@couthit.com/ Thanks and Regards, Parvathi. Murali Karicheri (1): net: ti: prueth: Adds support for RX interrupt coalescing/pacing Parvathi Pudi (1): dt-bindings: net: ti: Adds DUAL-EMAC mode support on PRU-ICSS2 for AM57xx, AM43xx and AM33xx SOCs Roger Quadros (9): net: ti: prueth: Adds ICSSM Ethernet driver net: ti: prueth: Adds PRUETH HW and SW configuration net: ti: prueth: Adds link detection, RX and TX support. net: ti: prueth: Adds ethtool support for ICSSM PRUETH Driver net: ti: prueth: Adds HW timestamping support for PTP using PRU-ICSS IEP module net: ti: prueth: Adds support for network filters for traffic control supported by PRU-ICSS net: ti: prueth: Adds power management support for PRU-ICSS net: ti: prueth: Adds support for PRUETH on AM33x and AM43x SOCs net: ti: prueth: Adds PTP OC Support for AM335x and AM437x .../devicetree/bindings/net/ti,icss-iep.yaml | 10 +- .../bindings/net/ti,icssm-prueth.yaml | 233 ++ .../bindings/net/ti,pruss-ecap.yaml | 32 + .../devicetree/bindings/soc/ti/ti,pruss.yaml | 9 + drivers/net/ethernet/ti/Kconfig | 24 + drivers/net/ethernet/ti/Makefile | 5 + drivers/net/ethernet/ti/icssg/icss_iep.c | 258 +- drivers/net/ethernet/ti/icssg/icss_iep.h | 11 + drivers/net/ethernet/ti/icssm/icssm_ethtool.c | 357 +++ drivers/net/ethernet/ti/icssm/icssm_prueth.c | 2483 +++++++++++++++++ drivers/net/ethernet/ti/icssm/icssm_prueth.h | 447 +++ .../net/ethernet/ti/icssm/icssm_prueth_dos.c | 225 ++ .../net/ethernet/ti/icssm/icssm_prueth_ecap.c | 312 +++ .../net/ethernet/ti/icssm/icssm_prueth_ecap.h | 47 + .../net/ethernet/ti/icssm/icssm_prueth_ptp.h | 85 + drivers/net/ethernet/ti/icssm/icssm_switch.h | 285 ++ .../ti/icssm/icssm_vlan_mcast_filter_mmap.h | 120 + 17 files changed, 4939 insertions(+), 4 deletions(-) create mode 100644 Documentation/devicetree/bindings/net/ti,icssm-prueth.yaml create mode 100644 Documentation/devicetree/bindings/net/ti,pruss-ecap.yaml create mode 100644 drivers/net/ethernet/ti/icssm/icssm_ethtool.c create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth.c create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth.h create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth_dos.c create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth_ecap.c create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth_ecap.h create mode 100644 drivers/net/ethernet/ti/icssm/icssm_prueth_ptp.h create mode 100644 drivers/net/ethernet/ti/icssm/icssm_switch.h create mode 100644 drivers/net/ethernet/ti/icssm/icssm_vlan_mcast_filter_mmap.h