From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ... --- arch/mips/include/asm/octeon/cvmx-ipd.h | 339 ++++++++++++++++++++++++++++++++ 1 file changed, 339 insertions(+) create mode 100644 arch/mips/include/asm/octeon/cvmx-ipd.h (limited to 'arch/mips/include/asm/octeon/cvmx-ipd.h') diff --git a/arch/mips/include/asm/octeon/cvmx-ipd.h b/arch/mips/include/asm/octeon/cvmx-ipd.h new file mode 100644 index 000000000..adab7b54c --- /dev/null +++ b/arch/mips/include/asm/octeon/cvmx-ipd.h @@ -0,0 +1,339 @@ +/***********************license start*************** + * Author: Cavium Networks + * + * Contact: support@caviumnetworks.com + * This file is part of the OCTEON SDK + * + * Copyright (c) 2003-2008 Cavium Networks + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, Version 2, as + * published by the Free Software Foundation. + * + * This file is distributed in the hope that it will be useful, but + * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or + * NONINFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * or visit http://www.gnu.org/licenses/. + * + * This file may also be available under a different license from Cavium. + * Contact Cavium Networks for more information + ***********************license end**************************************/ + +/** + * + * Interface to the hardware Input Packet Data unit. + */ + +#ifndef __CVMX_IPD_H__ +#define __CVMX_IPD_H__ + +#include + +#include +#include + +enum cvmx_ipd_mode { + CVMX_IPD_OPC_MODE_STT = 0LL, /* All blocks DRAM, not cached in L2 */ + CVMX_IPD_OPC_MODE_STF = 1LL, /* All blocks into L2 */ + CVMX_IPD_OPC_MODE_STF1_STT = 2LL, /* 1st block L2, rest DRAM */ + CVMX_IPD_OPC_MODE_STF2_STT = 3LL /* 1st, 2nd blocks L2, rest DRAM */ +}; + +#ifndef CVMX_ENABLE_LEN_M8_FIX +#define CVMX_ENABLE_LEN_M8_FIX 0 +#endif + +/* CSR typedefs have been moved to cvmx-csr-*.h */ +typedef union cvmx_ipd_1st_mbuff_skip cvmx_ipd_mbuff_first_skip_t; +typedef union cvmx_ipd_1st_next_ptr_back cvmx_ipd_first_next_ptr_back_t; + +typedef cvmx_ipd_mbuff_first_skip_t cvmx_ipd_mbuff_not_first_skip_t; +typedef cvmx_ipd_first_next_ptr_back_t cvmx_ipd_second_next_ptr_back_t; + +/** + * Configure IPD + * + * @mbuff_size: Packets buffer size in 8 byte words + * @first_mbuff_skip: + * Number of 8 byte words to skip in the first buffer + * @not_first_mbuff_skip: + * Number of 8 byte words to skip in each following buffer + * @first_back: Must be same as first_mbuff_skip / 128 + * @second_back: + * Must be same as not_first_mbuff_skip / 128 + * @wqe_fpa_pool: + * FPA pool to get work entries from + * @cache_mode: + * @back_pres_enable_flag: + * Enable or disable port back pressure + */ +static inline void cvmx_ipd_config(uint64_t mbuff_size, + uint64_t first_mbuff_skip, + uint64_t not_first_mbuff_skip, + uint64_t first_back, + uint64_t second_back, + uint64_t wqe_fpa_pool, + enum cvmx_ipd_mode cache_mode, + uint64_t back_pres_enable_flag) +{ + cvmx_ipd_mbuff_first_skip_t first_skip; + cvmx_ipd_mbuff_not_first_skip_t not_first_skip; + union cvmx_ipd_packet_mbuff_size size; + cvmx_ipd_first_next_ptr_back_t first_back_struct; + cvmx_ipd_second_next_ptr_back_t second_back_struct; + union cvmx_ipd_wqe_fpa_queue wqe_pool; + union cvmx_ipd_ctl_status ipd_ctl_reg; + + first_skip.u64 = 0; + first_skip.s.skip_sz = first_mbuff_skip; + cvmx_write_csr(CVMX_IPD_1ST_MBUFF_SKIP, first_skip.u64); + + not_first_skip.u64 = 0; + not_first_skip.s.skip_sz = not_first_mbuff_skip; + cvmx_write_csr(CVMX_IPD_NOT_1ST_MBUFF_SKIP, not_first_skip.u64); + + size.u64 = 0; + size.s.mb_size = mbuff_size; + cvmx_write_csr(CVMX_IPD_PACKET_MBUFF_SIZE, size.u64); + + first_back_struct.u64 = 0; + first_back_struct.s.back = first_back; + cvmx_write_csr(CVMX_IPD_1st_NEXT_PTR_BACK, first_back_struct.u64); + + second_back_struct.u64 = 0; + second_back_struct.s.back = second_back; + cvmx_write_csr(CVMX_IPD_2nd_NEXT_PTR_BACK, second_back_struct.u64); + + wqe_pool.u64 = 0; + wqe_pool.s.wqe_pool = wqe_fpa_pool; + cvmx_write_csr(CVMX_IPD_WQE_FPA_QUEUE, wqe_pool.u64); + + ipd_ctl_reg.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); + ipd_ctl_reg.s.opc_mode = cache_mode; + ipd_ctl_reg.s.pbp_en = back_pres_enable_flag; + cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_ctl_reg.u64); + + /* Note: the example RED code that used to be here has been moved to + cvmx_helper_setup_red */ +} + +/** + * Enable IPD + */ +static inline void cvmx_ipd_enable(void) +{ + union cvmx_ipd_ctl_status ipd_reg; + ipd_reg.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); + if (ipd_reg.s.ipd_en) { + cvmx_dprintf + ("Warning: Enabling IPD when IPD already enabled.\n"); + } + ipd_reg.s.ipd_en = 1; +#if CVMX_ENABLE_LEN_M8_FIX + if (!OCTEON_IS_MODEL(OCTEON_CN38XX_PASS2)) + ipd_reg.s.len_m8 = TRUE; +#endif + cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_reg.u64); +} + +/** + * Disable IPD + */ +static inline void cvmx_ipd_disable(void) +{ + union cvmx_ipd_ctl_status ipd_reg; + ipd_reg.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); + ipd_reg.s.ipd_en = 0; + cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_reg.u64); +} + +/** + * Supportive function for cvmx_fpa_shutdown_pool. + */ +static inline void cvmx_ipd_free_ptr(void) +{ + /* Only CN38XXp{1,2} cannot read pointer out of the IPD */ + if (!OCTEON_IS_MODEL(OCTEON_CN38XX_PASS1) + && !OCTEON_IS_MODEL(OCTEON_CN38XX_PASS2)) { + int no_wptr = 0; + union cvmx_ipd_ptr_count ipd_ptr_count; + ipd_ptr_count.u64 = cvmx_read_csr(CVMX_IPD_PTR_COUNT); + + /* Handle Work Queue Entry in cn56xx and cn52xx */ + if (octeon_has_feature(OCTEON_FEATURE_NO_WPTR)) { + union cvmx_ipd_ctl_status ipd_ctl_status; + ipd_ctl_status.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); + if (ipd_ctl_status.s.no_wptr) + no_wptr = 1; + } + + /* Free the prefetched WQE */ + if (ipd_ptr_count.s.wqev_cnt) { + union cvmx_ipd_wqe_ptr_valid ipd_wqe_ptr_valid; + ipd_wqe_ptr_valid.u64 = + cvmx_read_csr(CVMX_IPD_WQE_PTR_VALID); + if (no_wptr) + cvmx_fpa_free(cvmx_phys_to_ptr + ((uint64_t) ipd_wqe_ptr_valid.s. + ptr << 7), CVMX_FPA_PACKET_POOL, + 0); + else + cvmx_fpa_free(cvmx_phys_to_ptr + ((uint64_t) ipd_wqe_ptr_valid.s. + ptr << 7), CVMX_FPA_WQE_POOL, 0); + } + + /* Free all WQE in the fifo */ + if (ipd_ptr_count.s.wqe_pcnt) { + int i; + union cvmx_ipd_pwp_ptr_fifo_ctl ipd_pwp_ptr_fifo_ctl; + ipd_pwp_ptr_fifo_ctl.u64 = + cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); + for (i = 0; i < ipd_ptr_count.s.wqe_pcnt; i++) { + ipd_pwp_ptr_fifo_ctl.s.cena = 0; + ipd_pwp_ptr_fifo_ctl.s.raddr = + ipd_pwp_ptr_fifo_ctl.s.max_cnts + + (ipd_pwp_ptr_fifo_ctl.s.wraddr + + i) % ipd_pwp_ptr_fifo_ctl.s.max_cnts; + cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, + ipd_pwp_ptr_fifo_ctl.u64); + ipd_pwp_ptr_fifo_ctl.u64 = + cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); + if (no_wptr) + cvmx_fpa_free(cvmx_phys_to_ptr + ((uint64_t) + ipd_pwp_ptr_fifo_ctl.s. + ptr << 7), + CVMX_FPA_PACKET_POOL, 0); + else + cvmx_fpa_free(cvmx_phys_to_ptr + ((uint64_t) + ipd_pwp_ptr_fifo_ctl.s. + ptr << 7), + CVMX_FPA_WQE_POOL, 0); + } + ipd_pwp_ptr_fifo_ctl.s.cena = 1; + cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, + ipd_pwp_ptr_fifo_ctl.u64); + } + + /* Free the prefetched packet */ + if (ipd_ptr_count.s.pktv_cnt) { + union cvmx_ipd_pkt_ptr_valid ipd_pkt_ptr_valid; + ipd_pkt_ptr_valid.u64 = + cvmx_read_csr(CVMX_IPD_PKT_PTR_VALID); + cvmx_fpa_free(cvmx_phys_to_ptr + (ipd_pkt_ptr_valid.s.ptr << 7), + CVMX_FPA_PACKET_POOL, 0); + } + + /* Free the per port prefetched packets */ + if (1) { + int i; + union cvmx_ipd_prc_port_ptr_fifo_ctl + ipd_prc_port_ptr_fifo_ctl; + ipd_prc_port_ptr_fifo_ctl.u64 = + cvmx_read_csr(CVMX_IPD_PRC_PORT_PTR_FIFO_CTL); + + for (i = 0; i < ipd_prc_port_ptr_fifo_ctl.s.max_pkt; + i++) { + ipd_prc_port_ptr_fifo_ctl.s.cena = 0; + ipd_prc_port_ptr_fifo_ctl.s.raddr = + i % ipd_prc_port_ptr_fifo_ctl.s.max_pkt; + cvmx_write_csr(CVMX_IPD_PRC_PORT_PTR_FIFO_CTL, + ipd_prc_port_ptr_fifo_ctl.u64); + ipd_prc_port_ptr_fifo_ctl.u64 = + cvmx_read_csr + (CVMX_IPD_PRC_PORT_PTR_FIFO_CTL); + cvmx_fpa_free(cvmx_phys_to_ptr + ((uint64_t) + ipd_prc_port_ptr_fifo_ctl.s. + ptr << 7), CVMX_FPA_PACKET_POOL, + 0); + } + ipd_prc_port_ptr_fifo_ctl.s.cena = 1; + cvmx_write_csr(CVMX_IPD_PRC_PORT_PTR_FIFO_CTL, + ipd_prc_port_ptr_fifo_ctl.u64); + } + + /* Free all packets in the holding fifo */ + if (ipd_ptr_count.s.pfif_cnt) { + int i; + union cvmx_ipd_prc_hold_ptr_fifo_ctl + ipd_prc_hold_ptr_fifo_ctl; + + ipd_prc_hold_ptr_fifo_ctl.u64 = + cvmx_read_csr(CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL); + + for (i = 0; i < ipd_ptr_count.s.pfif_cnt; i++) { + ipd_prc_hold_ptr_fifo_ctl.s.cena = 0; + ipd_prc_hold_ptr_fifo_ctl.s.raddr = + (ipd_prc_hold_ptr_fifo_ctl.s.praddr + + i) % ipd_prc_hold_ptr_fifo_ctl.s.max_pkt; + cvmx_write_csr(CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL, + ipd_prc_hold_ptr_fifo_ctl.u64); + ipd_prc_hold_ptr_fifo_ctl.u64 = + cvmx_read_csr + (CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL); + cvmx_fpa_free(cvmx_phys_to_ptr + ((uint64_t) + ipd_prc_hold_ptr_fifo_ctl.s. + ptr << 7), CVMX_FPA_PACKET_POOL, + 0); + } + ipd_prc_hold_ptr_fifo_ctl.s.cena = 1; + cvmx_write_csr(CVMX_IPD_PRC_HOLD_PTR_FIFO_CTL, + ipd_prc_hold_ptr_fifo_ctl.u64); + } + + /* Free all packets in the fifo */ + if (ipd_ptr_count.s.pkt_pcnt) { + int i; + union cvmx_ipd_pwp_ptr_fifo_ctl ipd_pwp_ptr_fifo_ctl; + ipd_pwp_ptr_fifo_ctl.u64 = + cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); + + for (i = 0; i < ipd_ptr_count.s.pkt_pcnt; i++) { + ipd_pwp_ptr_fifo_ctl.s.cena = 0; + ipd_pwp_ptr_fifo_ctl.s.raddr = + (ipd_pwp_ptr_fifo_ctl.s.praddr + + i) % ipd_pwp_ptr_fifo_ctl.s.max_cnts; + cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, + ipd_pwp_ptr_fifo_ctl.u64); + ipd_pwp_ptr_fifo_ctl.u64 = + cvmx_read_csr(CVMX_IPD_PWP_PTR_FIFO_CTL); + cvmx_fpa_free(cvmx_phys_to_ptr + ((uint64_t) ipd_pwp_ptr_fifo_ctl. + s.ptr << 7), + CVMX_FPA_PACKET_POOL, 0); + } + ipd_pwp_ptr_fifo_ctl.s.cena = 1; + cvmx_write_csr(CVMX_IPD_PWP_PTR_FIFO_CTL, + ipd_pwp_ptr_fifo_ctl.u64); + } + + /* Reset the IPD to get all buffers out of it */ + { + union cvmx_ipd_ctl_status ipd_ctl_status; + ipd_ctl_status.u64 = cvmx_read_csr(CVMX_IPD_CTL_STATUS); + ipd_ctl_status.s.reset = 1; + cvmx_write_csr(CVMX_IPD_CTL_STATUS, ipd_ctl_status.u64); + } + + /* Reset the PIP */ + { + union cvmx_pip_sft_rst pip_sft_rst; + pip_sft_rst.u64 = cvmx_read_csr(CVMX_PIP_SFT_RST); + pip_sft_rst.s.rst = 1; + cvmx_write_csr(CVMX_PIP_SFT_RST, pip_sft_rst.u64); + } + } +} + +#endif /* __CVMX_IPD_H__ */ -- cgit v1.2.3