| Message ID | 20240911081603.2521729-1-danishanwar@ti.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Introduce HSR offload support for ICSSG | expand |
Hello: This series was applied to netdev/net-next.git (main) by Jakub Kicinski <kuba@kernel.org>: On Wed, 11 Sep 2024 13:45:58 +0530 you wrote: > Hi All, > This series introduces HSR offload support for ICSSG driver. To support HSR > offload to hardware, ICSSG HSR firmware is used. > > This series introduces, > 1. HSR frame offload support for ICSSG driver. > 2. HSR Tx Packet duplication offload > 3. HSR Tx Tag and Rx Tag offload > 4. Multicast filtering support in HSR offload mode. > 5. Dependencies related to IEP. > > [...] Here is the summary with links: - [net-next,v6,1/5] net: ti: icss-iep: Move icss_iep structure https://git.kernel.org/netdev/net-next/c/8f88c072c2ba - [net-next,v6,2/5] net: ti: icssg-prueth: Stop hardcoding def_inc https://git.kernel.org/netdev/net-next/c/4ebe0599fc36 - [net-next,v6,3/5] net: ti: icssg-prueth: Add support for HSR frame forward offload https://git.kernel.org/netdev/net-next/c/95540ad6747c - [net-next,v6,4/5] net: ti: icssg-prueth: Enable HSR Tx duplication, Tx Tag and Rx Tag offload https://git.kernel.org/netdev/net-next/c/56375086d093 - [net-next,v6,5/5] net: ti: icssg-prueth: Add multicast filtering support in HSR mode https://git.kernel.org/netdev/net-next/c/1d6ae9652780 You are awesome, thank you!
Hi All, This series introduces HSR offload support for ICSSG driver. To support HSR offload to hardware, ICSSG HSR firmware is used. This series introduces, 1. HSR frame offload support for ICSSG driver. 2. HSR Tx Packet duplication offload 3. HSR Tx Tag and Rx Tag offload 4. Multicast filtering support in HSR offload mode. 5. Dependencies related to IEP. HSR Test Setup: -------------- ___________ ___________ ___________ | | Link AB | | Link BC | | __| AM64* |_________| AM64 |_________| AM64* |___ | | Station A | | Station B | | Station C | | | |___________| |___________| |___________| | | | |______________________________________________________________| Link CA *Could be any device that supports two ethernet interfaces. Steps to switch to HSR frame forward offload mode: ------------------------------------------------- Example assuming eth1, eth2 ports of ICSSG1 on AM64-EVM 1) Enable HSR offload for both interfaces ethtool -K eth1 hsr-fwd-offload on ethtool -K eth1 hsr-dup-offload on ethtool -K eth1 hsr-tag-ins-offload on ethtool -K eth1 hsr-tag-rm-offload on ethtool -K eth2 hsr-fwd-offload on ethtool -K eth2 hsr-dup-offload on ethtool -K eth2 hsr-tag-ins-offload on ethtool -K eth2 hsr-tag-rm-offload on 2) Create HSR interface and add slave interfaces to it ip link add name hsr0 type hsr slave1 eth1 slave2 eth2 \ supervision 45 version 1 3) Add IP address to the HSR interface ip addr add <IP_ADDR>/24 dev hsr0 4) Bring up the HSR interface ip link set hsr0 up Switching back to previous mode: -------------------------------- 1) Delete HSR interface ip link delete hsr0 2) Disable HSR port-to-port offloading mode, packet duplication ethtool -K eth1 hsr-fwd-offload off ethtool -K eth1 hsr-dup-offload off ethtool -K eth1 hsr-tag-ins-offload off ethtool -K eth1 hsr-tag-rm-offload off ethtool -K eth2 hsr-fwd-offload off ethtool -K eth2 hsr-dup-offload off ethtool -K eth2 hsr-tag-ins-offload off ethtool -K eth2 hsr-tag-rm-offload off Testing the port-to-port frame forward offload feature: ----------------------------------------------------- 1) Connect the LAN cables as shown in the test setup. 2) Configure Station A and Station C in HSR non-offload mode. 3) Configure Station B is HSR offload mode. 4) Since HSR is a redundancy protocol, disconnect cable "Link CA", to ensure frames from Station A reach Station C only through Station B. 5) Run iperf3 Server on Station C and client on station A. 7) Check the CPU usage on Station B. CPU usage report on Station B using mpstat when running UDP iperf3: ------------------------------------------------------------------- 1) Non-Offload case ------------------- CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle all 0.00 0.00 0.50 0.00 3.52 29.15 0.00 0.00 66.83 0 0.00 0.00 0.00 0.00 7.00 58.00 0.00 0.00 35.00 1 0.00 0.00 0.99 0.00 0.99 0.00 0.00 0.00 98.02 2) Offload case --------------- CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle all 0.00 0.00 0.00 0.00 0.50 0.00 0.00 0.00 99.50 0 0.00 0.00 0.99 0.00 0.00 0.00 0.00 0.00 99.01 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 100.00 Note: 1) At the very least, hsr-fwd-offload must be enabled. Without offloading the port-to-port offload, other HSR offloads cannot be enabled. 2) hsr-tag-ins-offload and hsr-dup-offload are tightly coupled in the firmware implementation. They both need to be enabled / disabled together. Changes from v5 to v6: *) Dropped ndo_set_features API as asked by Roger. *) Modified emac_ndo_fix_features as asked by Roger Quadros <rogerq@kernel.org> Changes from v4 to v5: *) Fixed warning reported by kernel test robot [0]. Changes from v3 to v4: *) Simplified ndo_set_features() implementation as suggested by Roger Quadros <rogerq@kernel.org> *) Maintained 80 character limit per line wherever possible. *) Returning -EOPNOTSUPP whenever offloading is not possible. *) Changed dev_dbg() prints to netdev_dbg() as suggested by Alexander Lobakin <aleksander.lobakin@intel.com> *) Squashed patch [1] and [2] together as hsr tag ins is dependent on hsr tx duplication. Also didn't add Roger's RB tag from patch [2] as the patch is now merged with [1] in patch 4/5. *) Implemented emac_ndo_fix_features() to make sure NETIF_F_HW_HSR_DUP is enabled / disabled with NETIF_F_HW_HSR_TAG_INS as suggested by Roger Quadros <rogerq@kernel.org> *) Added Roger's RB tag to patch 5/5. *) Modified commit message of patch 3/5 to state that driver will be back to previously used mode once HSR is disabled. Changes from v2 to v3: *) Renamed APIs common to switch and hsr modes with suffix _fw_offload. *) Returning EOPNOTSUPP in prueth_hsr_port_link() as suggested by Andrew Lunn <andrew@lunn.ch> *) Dropped unneccassary dev_err prints and changed dev_err to dev_dbg where applicable. *) Renamed NETIF_PRUETH_HSR_OFFLOAD to NETIF_PRUETH_HSR_OFFLOAD_FEATURES to make it clear it is a collection of features, not an alias for one feature. *) Added Kernel doc entries for @hsr_members and @is_hsr_offload_mode as suggested by Simon Horman <horms@kernel.org> *) Dropped patch [3] as it is no longer needed in this series. It is already merged to net/main by commit [4]. *) Collected Reviewed-by tag from Roger Quadros <rogerq@kernel.org> for PATCH 1/6 and PATCH 2/6. *) Added if check for current mode before calling __dev_mc_unsync as suggested by Roger Quadros <rogerq@kernel.org> *) Updated commit message of PATCH 6/6 to describe handling of duplicate discard in the driver. Changes from v1 to v2: *) Modified patch 2/7 to only contain code movement as suggested by Dan Carpenter <dan.carpenter@linaro.org> *) Added patch 3/7 by splitting it from 2/6 as the patch is not part of code movement done in patch 2/7. *) Rebased on latest net-next/main. v1: https://lore.kernel.org/all/20240808110800.1281716-1-danishanwar@ti.com/ v2: https://lore.kernel.org/all/20240813074233.2473876-1-danishanwar@ti.com v3: https://lore.kernel.org/all/20240828091901.3120935-1-danishanwar@ti.com/ v4: https://lore.kernel.org/all/20240904100506.3665892-1-danishanwar@ti.com/ v5: https://lore.kernel.org/all/20240906111538.1259418-1-danishanwar@ti.com/ [0] https://lore.kernel.org/all/202409061658.vSwcFJiK-lkp@intel.com/ [1] https://lore.kernel.org/all/20240828091901.3120935-5-danishanwar@ti.com/ [2] https://lore.kernel.org/all/20240828091901.3120935-7-danishanwar@ti.com/ [3] https://lore.kernel.org/all/20240813074233.2473876-2-danishanwar@ti.com/ [4] https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=e846be0fba85 MD Danish Anwar (4): net: ti: icss-iep: Move icss_iep structure net: ti: icssg-prueth: Stop hardcoding def_inc net: ti: icssg-prueth: Add support for HSR frame forward offload net: ti: icssg-prueth: Add multicast filtering support in HSR mode Ravi Gunasekaran (1): net: ti: icssg-prueth: Enable HSR Tx duplication, Tx Tag and Rx Tag offload drivers/net/ethernet/ti/icssg/icss_iep.c | 72 ------- drivers/net/ethernet/ti/icssg/icss_iep.h | 73 ++++++- .../net/ethernet/ti/icssg/icssg_classifier.c | 1 + drivers/net/ethernet/ti/icssg/icssg_common.c | 18 +- drivers/net/ethernet/ti/icssg/icssg_config.c | 22 ++- drivers/net/ethernet/ti/icssg/icssg_config.h | 2 + drivers/net/ethernet/ti/icssg/icssg_prueth.c | 185 +++++++++++++++++- drivers/net/ethernet/ti/icssg/icssg_prueth.h | 9 + 8 files changed, 290 insertions(+), 92 deletions(-) base-commit: f3b6129b7d252b2fbdcac2e0005abc6804dc287c