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(unknown [10.28.36.165]) by maili.marvell.com (Postfix) with ESMTP id 8E3933F7078; Mon, 16 Mar 2026 21:56:30 -0700 (PDT) From: Ratheesh Kannoth To: , CC: , , , , , , , , , , , , "Ratheesh Kannoth" Subject: [PATCH v5 net-next 0/5] octeontx2-af: npc: Enhancements. Date: Tue, 17 Mar 2026 10:26:18 +0530 Message-ID: <20260317045623.250187-1-rkannoth@marvell.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Proofpoint-GUID: Bob7c29v7xrFMJL_gUHB3WSJQmBL5D6z X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzE3MDA0MCBTYWx0ZWRfXx2yLCU+bca35 UloGanbp5ztV2/DmNapmRD/ZRXY8F30vEa/r0/uP2BXlvsoem1pqxToi5PXKg4O37mSRcWG2R8n 0sjQly/TcHycHnCPkwgaZv1K+YuPszogw3UxkLpZYhWxKfnPQNtbhDYGHgfR5DNo6GDDoB26mF1 0Gw+eHjukn33iHYvEvezuxLr2+RqeCI0A04CPO1iEUhltzZHv/zSXXKWwInlnNYfDxU8Abd5tXi Ly5OVTfZsWt2yqiSRf7P51NiFMWtaj4bYlufDvLyFwpPXImGcWPuR5uZ7KCVCkkKq2srcR2I2EH fQRFf7Krm2uUiKzRaL/YcR4jAbKb/sDp+QcFiB7KtODjOK99kko0el3L+VryAMmxJ2WktBAjBcQ AIesKzkBDxRr6cUSLuehE78fmAuw5zjPPn3MoTfY7nQGdWBtx6X1UoYrdm67T0VVLVOvjl4CHPe gAlSNdB/asOnSBp7P+A== X-Proofpoint-ORIG-GUID: Bob7c29v7xrFMJL_gUHB3WSJQmBL5D6z X-Authority-Analysis: v=2.4 cv=McJhep/f c=1 sm=1 tr=0 ts=69b8df04 cx=c_pps a=rEv8fa4AjpPjGxpoe8rlIQ==:117 a=rEv8fa4AjpPjGxpoe8rlIQ==:17 a=Yq5XynenixoA:10 a=VkNPw1HP01LnGYTKEx00:22 a=l0iWHRpgs5sLHlkKQ1IR:22 a=EAYMVhzMl8SCOHhVQcBL:22 a=VwQbUJbxAAAA:8 a=M5GUcnROAAAA:8 a=32TfifE4CFI_pm9Ig-oA:9 a=OBjm3rFKGHvpk9ecZwUJ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-17_01,2026-03-16_06,2025-10-01_01 This series adds features in NPC HW block in the OcteonTX2 AF driver for better observability, configuration, and resource management. Patch 1 adds debugfs enhancements for CN20K: mcam_layout now shows enabled/disabled state per MCAM entry; a new "dstats" entry reports hit counts with delta semantics; and "mismatch" lists entries that are enabled but not explicitly allocated. Patch 2 (from Saeed) extends devlink with DEVLINK_PARAM_TYPE_U32_ARRAY so params can accept multiple u32 values in a single value. This is used by patch 3 for subbank search order. Patch 3 adds a devlink parameter "srch_order" for CN20K to control the order in which NPC subbanks are searched during MCAM allocation, allowing users to tune rule priority without firmware changes. Patch 4 ties default MCAM entries (broadcast, multicast, promisc, ucast) to NIX LF lifetime: they are allocated when a NIX LF is allocated and freed when it is released, improving MCAM utilization. NIX_LF_DONT_FREE_DFT_IDXS lets the kernel PF retain default entries across suspend/resume. Patch 5 allows loading a custom KPU profile from the filesystem via a module parameter (kpu_profile=), avoiding firmware flashes for profile updates. Ratheesh Kannoth (4): octeontx2-af: npc: cn20k: debugfs enhancements octeontx2-af: npc: cn20k: Add devlink support for search order octeontx2-af: npc: cn20k: dynamically allocate and free default MCAM entries octeontx2-af: Add support for loading custom KPU profile from filesystem Saeed Mahameed (1): devlink: Implement devlink param multi attribute nested data values Documentation/netlink/specs/devlink.yaml | 4 + .../marvell/octeontx2/af/cn20k/debugfs.c | 120 +++++++- .../ethernet/marvell/octeontx2/af/cn20k/npc.c | 192 ++++++++++--- .../ethernet/marvell/octeontx2/af/cn20k/npc.h | 9 + .../net/ethernet/marvell/octeontx2/af/mbox.h | 1 + .../net/ethernet/marvell/octeontx2/af/npc.h | 14 + .../net/ethernet/marvell/octeontx2/af/rvu.h | 3 +- .../marvell/octeontx2/af/rvu_devlink.c | 88 +++++- .../ethernet/marvell/octeontx2/af/rvu_nix.c | 14 + .../ethernet/marvell/octeontx2/af/rvu_npc.c | 269 ++++++++++++++---- .../ethernet/marvell/octeontx2/af/rvu_reg.h | 1 + .../marvell/octeontx2/nic/otx2_pf.c | 6 +- include/net/devlink.h | 8 + include/uapi/linux/devlink.h | 1 + net/devlink/netlink_gen.c | 2 + net/devlink/param.c | 78 +++-- 16 files changed, 674 insertions(+), 136 deletions(-) -- v4 -> v5: Addressed Jakub comments https://lore.kernel.org/netdev/20260312022754.2029595-6-rkannoth@marvell.com/ v3 -> v4: Addressed Simon comments https://lore.kernel.org/netdev/abDeXLpMMxp7G1v3@rkannoth-OptiPlex-7090/#t v2 -> v3: Addressed Simon comments. https://lore.kernel.org/netdev/20260304043032.3661647-1-rkannoth@marvell.com/ v1 -> v2: Addressed Jakub comments. https://lore.kernel.org/netdev/20260302085803.2449828-1-rkannoth@marvell.com/#t 2.43.0