This patch series adds support for IPsec packet offload for the Marvell CN10K SoC. The packet flow --------------- An encrypted IPSec packet goes through two passes in the RVU hardware before reaching the CPU. First Pass: The first pass involves identifying the packet as IPSec, assigning an RQ, allocating a buffer from the Aura pool and then send it to CPT for decryption. Second Pass: After CPT decrypts the packet, it sends a metapacket to NIXRX via the X2P bus. The metapacket contains CPT_PARSE_HDR_S structure and some initial bytes of the decrypted packet which would help NIXRX in classification. CPT also sets BIT(11) of channel number to further help in identifcation. NIXRX allocates a new buffer for this packet and submits it to the CPU. Once the decrypted metapacket packet is delivered to the CPU, get the WQE pointer from CPT_PARSE_HDR_S in the packet buffer. This WQE points to the complete decrypted packet. We create an skb using this, set the relevant XFRM packet mode flags to indicate successful decryption, and submit it to the network stack. Bharat Bhushan (4): crypto: octeontx2: Share engine group info with AF driver octeontx2-af: Configure crypto hardware for inline ipsec octeontx2-af: Setup Large Memory Transaction for crypto octeontx2-af: Handle inbound inline ipsec config in AF Geetha sowjanya (1): octeontx2-af: Add mbox to alloc/free BPIDs Kiran Kumar K (1): octeontx2-af: Add support for SPI to SA index translation Rakesh Kudurumalla (1): octeontx2-af: Add support for CPT second pass Tanmay Jagdale (7): octeontx2-pf: ipsec: Allocate Ingress SA table octeontx2-pf: ipsec: Setup NIX HW resources for inbound flows octeontx2-pf: ipsec: Handle NPA threshold interrupt octeontx2-pf: ipsec: Initialize ingress IPsec octeontx2-pf: ipsec: Process CPT metapackets octeontx2-pf: ipsec: Manage NPC rules and SPI-to-SA table entries octeontx2-pf: ipsec: Add XFRM state and policy hooks for inbound flows .../marvell/octeontx2/otx2_cpt_common.h | 8 - drivers/crypto/marvell/octeontx2/otx2_cptpf.h | 10 - .../marvell/octeontx2/otx2_cptpf_main.c | 50 +- .../marvell/octeontx2/otx2_cptpf_mbox.c | 282 +--- .../marvell/octeontx2/otx2_cptpf_ucode.c | 116 +- .../marvell/octeontx2/otx2_cptpf_ucode.h | 3 +- .../ethernet/marvell/octeontx2/af/Makefile | 2 +- .../ethernet/marvell/octeontx2/af/common.h | 1 + .../net/ethernet/marvell/octeontx2/af/mbox.c | 3 - .../net/ethernet/marvell/octeontx2/af/mbox.h | 119 +- .../net/ethernet/marvell/octeontx2/af/rvu.c | 8 +- .../net/ethernet/marvell/octeontx2/af/rvu.h | 71 + .../ethernet/marvell/octeontx2/af/rvu_cn10k.c | 11 + .../ethernet/marvell/octeontx2/af/rvu_cpt.c | 707 +++++++++- .../ethernet/marvell/octeontx2/af/rvu_cpt.h | 71 + .../ethernet/marvell/octeontx2/af/rvu_nix.c | 235 +++- .../marvell/octeontx2/af/rvu_nix_spi.c | 211 +++ .../ethernet/marvell/octeontx2/af/rvu_reg.h | 40 + .../marvell/octeontx2/af/rvu_struct.h | 4 +- .../marvell/octeontx2/nic/cn10k_ipsec.c | 1204 ++++++++++++++++- .../marvell/octeontx2/nic/cn10k_ipsec.h | 159 +++ .../marvell/octeontx2/nic/otx2_common.c | 23 +- .../marvell/octeontx2/nic/otx2_common.h | 16 + .../ethernet/marvell/octeontx2/nic/otx2_pf.c | 17 + .../ethernet/marvell/octeontx2/nic/otx2_reg.h | 5 + .../marvell/octeontx2/nic/otx2_struct.h | 16 + .../marvell/octeontx2/nic/otx2_txrx.c | 27 +- .../ethernet/marvell/octeontx2/nic/otx2_vf.c | 4 + 28 files changed, 2959 insertions(+), 464 deletions(-) create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_cpt.h create mode 100644 drivers/net/ethernet/marvell/octeontx2/af/rvu_nix_spi.c -- 2.43.0
