| Message ID | 20210216214205.32385-1-horatiu.vultur@microchip.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | bridge: mrp: Extend br_mrp_switchdev_* | expand |
Hello: This series was applied to netdev/net-next.git (refs/heads/master): On Tue, 16 Feb 2021 22:41:57 +0100 you wrote: > This patch series extends MRP switchdev to allow the SW to have a better > understanding if the HW can implement the MRP functionality or it needs > to help the HW to run it. There are 3 cases: > - when HW can't implement at all the functionality. > - when HW can implement a part of the functionality but needs the SW > implement the rest. For example if it can't detect when it stops > receiving MRP Test frames but it can copy the MRP frames to CPU to > allow the SW to determine this. Another example is generating the MRP > Test frames. If HW can't do that then the SW is used as backup. > - when HW can implement completely the functionality. > > [...] Here is the summary with links: - [net-next,v4,1/8] switchdev: mrp: Remove CONFIG_BRIDGE_MRP https://git.kernel.org/netdev/net-next/c/405be6b46b70 - [net-next,v4,2/8] switchdev: mrp: Extend ring_role_mrp and in_role_mrp https://git.kernel.org/netdev/net-next/c/c513efa20c52 - [net-next,v4,3/8] bridge: mrp: Add 'enum br_mrp_hw_support' https://git.kernel.org/netdev/net-next/c/e1bd99d07e61 - [net-next,v4,4/8] bridge: mrp: Extend br_mrp_switchdev to detect better the errors https://git.kernel.org/netdev/net-next/c/1a3ddb0b7516 - [net-next,v4,5/8] bridge: mrp: Update br_mrp to use new return values of br_mrp_switchdev https://git.kernel.org/netdev/net-next/c/cd605d455a44 - [net-next,v4,6/8] net: mscc: ocelot: Add support for MRP https://git.kernel.org/netdev/net-next/c/d8ea7ff3995e - [net-next,v4,7/8] net: dsa: add MRP support https://git.kernel.org/netdev/net-next/c/c595c4330da0 - [net-next,v4,8/8] net: dsa: felix: Add support for MRP https://git.kernel.org/netdev/net-next/c/a026c50b599f You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html
This patch series extends MRP switchdev to allow the SW to have a better understanding if the HW can implement the MRP functionality or it needs to help the HW to run it. There are 3 cases: - when HW can't implement at all the functionality. - when HW can implement a part of the functionality but needs the SW implement the rest. For example if it can't detect when it stops receiving MRP Test frames but it can copy the MRP frames to CPU to allow the SW to determine this. Another example is generating the MRP Test frames. If HW can't do that then the SW is used as backup. - when HW can implement completely the functionality. So, initially the SW tries to offload the entire functionality in HW, if that fails it tries offload parts of the functionality in HW and use the SW as helper and if also this fails then MRP can't run on this HW. Based on these new calls, implement the switchdev for Ocelot driver. This is an example where the HW can't run completely the functionality but it can help the SW to run it, by trapping all MRP frames to CPU. Also this patch series adds MRP support to DSA and implements the Felix driver which just reuse the Ocelot functions. This part was just compiled tested because I don't have any HW on which to do the actual tests. v4: - remove ifdef MRP from include/net/switchdev.h - move MRP implementation for Ocelot in a different file such that Felix driver can use it. - extend DSA with MRP support - implement MRP support for Felix. v3: - implement the switchdev calls needed by Ocelot driver. v2: - fix typos in comments and in commit messages - remove some of the comments - move repeated code in helper function - fix issue when deleting a node when sw_backup was true Horatiu Vultur (8): switchdev: mrp: Remove CONFIG_BRIDGE_MRP switchdev: mrp: Extend ring_role_mrp and in_role_mrp bridge: mrp: Add 'enum br_mrp_hw_support' bridge: mrp: Extend br_mrp_switchdev to detect better the errors bridge: mrp: Update br_mrp to use new return values of br_mrp_switchdev net: mscc: ocelot: Add support for MRP net: dsa: add MRP support net: dsa: felix: Add support for MRP drivers/net/dsa/ocelot/felix.c | 38 ++++++ drivers/net/ethernet/mscc/Makefile | 1 + drivers/net/ethernet/mscc/ocelot.c | 10 +- drivers/net/ethernet/mscc/ocelot_mrp.c | 175 +++++++++++++++++++++++++ drivers/net/ethernet/mscc/ocelot_net.c | 60 +++++++++ include/linux/dsa/ocelot.h | 5 + include/net/dsa.h | 12 ++ include/net/switchdev.h | 12 +- include/soc/mscc/ocelot.h | 45 +++++++ net/bridge/br_mrp.c | 43 +++--- net/bridge/br_mrp_switchdev.c | 171 ++++++++++++++---------- net/bridge/br_private_mrp.h | 38 ++++-- net/dsa/dsa_priv.h | 26 ++++ net/dsa/port.c | 48 +++++++ net/dsa/slave.c | 22 ++++ net/dsa/switch.c | 105 +++++++++++++++ net/dsa/tag_ocelot.c | 8 ++ 17 files changed, 715 insertions(+), 104 deletions(-) create mode 100644 drivers/net/ethernet/mscc/ocelot_mrp.c