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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/cavium/thunder/nicvf_queues.h | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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().
...
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nicvf_queues.h')
-rw-r--r-- | drivers/net/ethernet/cavium/thunder/nicvf_queues.h | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h new file mode 100644 index 000000000..8453defc2 --- /dev/null +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h @@ -0,0 +1,374 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2015 Cavium, Inc. + */ + +#ifndef NICVF_QUEUES_H +#define NICVF_QUEUES_H + +#include <linux/netdevice.h> +#include <linux/iommu.h> +#include <net/xdp.h> +#include "q_struct.h" + +#define MAX_QUEUE_SET 128 +#define MAX_RCV_QUEUES_PER_QS 8 +#define MAX_RCV_BUF_DESC_RINGS_PER_QS 2 +#define MAX_SND_QUEUES_PER_QS 8 +#define MAX_CMP_QUEUES_PER_QS 8 + +/* VF's queue interrupt ranges */ +#define NICVF_INTR_ID_CQ 0 +#define NICVF_INTR_ID_SQ 8 +#define NICVF_INTR_ID_RBDR 16 +#define NICVF_INTR_ID_MISC 18 +#define NICVF_INTR_ID_QS_ERR 19 + +#define for_each_cq_irq(irq) \ + for (irq = NICVF_INTR_ID_CQ; irq < NICVF_INTR_ID_SQ; irq++) +#define for_each_sq_irq(irq) \ + for (irq = NICVF_INTR_ID_SQ; irq < NICVF_INTR_ID_RBDR; irq++) +#define for_each_rbdr_irq(irq) \ + for (irq = NICVF_INTR_ID_RBDR; irq < NICVF_INTR_ID_MISC; irq++) + +#define RBDR_SIZE0 0ULL /* 8K entries */ +#define RBDR_SIZE1 1ULL /* 16K entries */ +#define RBDR_SIZE2 2ULL /* 32K entries */ +#define RBDR_SIZE3 3ULL /* 64K entries */ +#define RBDR_SIZE4 4ULL /* 126K entries */ +#define RBDR_SIZE5 5ULL /* 256K entries */ +#define RBDR_SIZE6 6ULL /* 512K entries */ + +#define SND_QUEUE_SIZE0 0ULL /* 1K entries */ +#define SND_QUEUE_SIZE1 1ULL /* 2K entries */ +#define SND_QUEUE_SIZE2 2ULL /* 4K entries */ +#define SND_QUEUE_SIZE3 3ULL /* 8K entries */ +#define SND_QUEUE_SIZE4 4ULL /* 16K entries */ +#define SND_QUEUE_SIZE5 5ULL /* 32K entries */ +#define SND_QUEUE_SIZE6 6ULL /* 64K entries */ + +#define CMP_QUEUE_SIZE0 0ULL /* 1K entries */ +#define CMP_QUEUE_SIZE1 1ULL /* 2K entries */ +#define CMP_QUEUE_SIZE2 2ULL /* 4K entries */ +#define CMP_QUEUE_SIZE3 3ULL /* 8K entries */ +#define CMP_QUEUE_SIZE4 4ULL /* 16K entries */ +#define CMP_QUEUE_SIZE5 5ULL /* 32K entries */ +#define CMP_QUEUE_SIZE6 6ULL /* 64K entries */ + +/* Default queue count per QS, its lengths and threshold values */ +#define DEFAULT_RBDR_CNT 1 + +#define SND_QSIZE SND_QUEUE_SIZE0 +#define SND_QUEUE_LEN (1ULL << (SND_QSIZE + 10)) +#define MIN_SND_QUEUE_LEN (1ULL << (SND_QUEUE_SIZE0 + 10)) +#define MAX_SND_QUEUE_LEN (1ULL << (SND_QUEUE_SIZE6 + 10)) +#define SND_QUEUE_THRESH 2ULL +#define MIN_SQ_DESC_PER_PKT_XMIT 2 +/* Since timestamp not enabled, otherwise 2 */ +#define MAX_CQE_PER_PKT_XMIT 1 + +/* Keep CQ and SQ sizes same, if timestamping + * is enabled this equation will change. + */ +#define CMP_QSIZE CMP_QUEUE_SIZE0 +#define CMP_QUEUE_LEN (1ULL << (CMP_QSIZE + 10)) +#define MIN_CMP_QUEUE_LEN (1ULL << (CMP_QUEUE_SIZE0 + 10)) +#define MAX_CMP_QUEUE_LEN (1ULL << (CMP_QUEUE_SIZE6 + 10)) +#define CMP_QUEUE_CQE_THRESH (NAPI_POLL_WEIGHT / 2) +#define CMP_QUEUE_TIMER_THRESH 80 /* ~2usec */ + +/* No of CQEs that might anyway gets used by HW due to pipelining + * effects irrespective of PASS/DROP/LEVELS being configured + */ +#define CMP_QUEUE_PIPELINE_RSVD 544 + +#define RBDR_SIZE RBDR_SIZE0 +#define RCV_BUF_COUNT (1ULL << (RBDR_SIZE + 13)) +#define MAX_RCV_BUF_COUNT (1ULL << (RBDR_SIZE6 + 13)) +#define RBDR_THRESH (RCV_BUF_COUNT / 2) +#define DMA_BUFFER_LEN 1536 /* In multiples of 128bytes */ +#define RCV_FRAG_LEN (SKB_DATA_ALIGN(DMA_BUFFER_LEN + NET_SKB_PAD) + \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) + +#define MAX_CQES_FOR_TX ((SND_QUEUE_LEN / MIN_SQ_DESC_PER_PKT_XMIT) * \ + MAX_CQE_PER_PKT_XMIT) + +/* RED and Backpressure levels of CQ for pkt reception + * For CQ, level is a measure of emptiness i.e 0x0 means full + * eg: For CQ of size 4K, and for pass/drop levels of 160/144 + * HW accepts pkt if unused CQE >= 2560 + * RED accepts pkt if unused CQE < 2304 & >= 2560 + * DROPs pkts if unused CQE < 2304 + */ +#define RQ_PASS_CQ_LVL 224ULL +#define RQ_DROP_CQ_LVL 216ULL + +/* RED and Backpressure levels of RBDR for pkt reception + * For RBDR, level is a measure of fullness i.e 0x0 means empty + * eg: For RBDR of size 8K, and for pass/drop levels of 4/0 + * HW accepts pkt if unused RBs >= 256 + * RED accepts pkt if unused RBs < 256 & >= 0 + * DROPs pkts if unused RBs < 0 + */ +#define RQ_PASS_RBDR_LVL 8ULL +#define RQ_DROP_RBDR_LVL 0ULL + +/* Descriptor size in bytes */ +#define SND_QUEUE_DESC_SIZE 16 +#define CMP_QUEUE_DESC_SIZE 512 + +/* Buffer / descriptor alignments */ +#define NICVF_RCV_BUF_ALIGN 7 +#define NICVF_RCV_BUF_ALIGN_BYTES (1ULL << NICVF_RCV_BUF_ALIGN) +#define NICVF_CQ_BASE_ALIGN_BYTES 512 /* 9 bits */ +#define NICVF_SQ_BASE_ALIGN_BYTES 128 /* 7 bits */ + +#define NICVF_ALIGNED_ADDR(ADDR, ALIGN_BYTES) ALIGN(ADDR, ALIGN_BYTES) + +/* Queue enable/disable */ +#define NICVF_SQ_EN BIT_ULL(19) + +/* Queue reset */ +#define NICVF_CQ_RESET BIT_ULL(41) +#define NICVF_SQ_RESET BIT_ULL(17) +#define NICVF_RBDR_RESET BIT_ULL(43) + +enum CQ_RX_ERRLVL_E { + CQ_ERRLVL_MAC, + CQ_ERRLVL_L2, + CQ_ERRLVL_L3, + CQ_ERRLVL_L4, +}; + +enum CQ_RX_ERROP_E { + CQ_RX_ERROP_RE_NONE = 0x0, + CQ_RX_ERROP_RE_PARTIAL = 0x1, + CQ_RX_ERROP_RE_JABBER = 0x2, + CQ_RX_ERROP_RE_FCS = 0x7, + CQ_RX_ERROP_RE_TERMINATE = 0x9, + CQ_RX_ERROP_RE_RX_CTL = 0xb, + CQ_RX_ERROP_PREL2_ERR = 0x1f, + CQ_RX_ERROP_L2_FRAGMENT = 0x20, + CQ_RX_ERROP_L2_OVERRUN = 0x21, + CQ_RX_ERROP_L2_PFCS = 0x22, + CQ_RX_ERROP_L2_PUNY = 0x23, + CQ_RX_ERROP_L2_MAL = 0x24, + CQ_RX_ERROP_L2_OVERSIZE = 0x25, + CQ_RX_ERROP_L2_UNDERSIZE = 0x26, + CQ_RX_ERROP_L2_LENMISM = 0x27, + CQ_RX_ERROP_L2_PCLP = 0x28, + CQ_RX_ERROP_IP_NOT = 0x41, + CQ_RX_ERROP_IP_CSUM_ERR = 0x42, + CQ_RX_ERROP_IP_MAL = 0x43, + CQ_RX_ERROP_IP_MALD = 0x44, + CQ_RX_ERROP_IP_HOP = 0x45, + CQ_RX_ERROP_L3_ICRC = 0x46, + CQ_RX_ERROP_L3_PCLP = 0x47, + CQ_RX_ERROP_L4_MAL = 0x61, + CQ_RX_ERROP_L4_CHK = 0x62, + CQ_RX_ERROP_UDP_LEN = 0x63, + CQ_RX_ERROP_L4_PORT = 0x64, + CQ_RX_ERROP_TCP_FLAG = 0x65, + CQ_RX_ERROP_TCP_OFFSET = 0x66, + CQ_RX_ERROP_L4_PCLP = 0x67, + CQ_RX_ERROP_RBDR_TRUNC = 0x70, +}; + +enum CQ_TX_ERROP_E { + CQ_TX_ERROP_GOOD = 0x0, + CQ_TX_ERROP_DESC_FAULT = 0x10, + CQ_TX_ERROP_HDR_CONS_ERR = 0x11, + CQ_TX_ERROP_SUBDC_ERR = 0x12, + CQ_TX_ERROP_MAX_SIZE_VIOL = 0x13, + CQ_TX_ERROP_IMM_SIZE_OFLOW = 0x80, + CQ_TX_ERROP_DATA_SEQUENCE_ERR = 0x81, + CQ_TX_ERROP_MEM_SEQUENCE_ERR = 0x82, + CQ_TX_ERROP_LOCK_VIOL = 0x83, + CQ_TX_ERROP_DATA_FAULT = 0x84, + CQ_TX_ERROP_TSTMP_CONFLICT = 0x85, + CQ_TX_ERROP_TSTMP_TIMEOUT = 0x86, + CQ_TX_ERROP_MEM_FAULT = 0x87, + CQ_TX_ERROP_CK_OVERLAP = 0x88, + CQ_TX_ERROP_CK_OFLOW = 0x89, + CQ_TX_ERROP_ENUM_LAST = 0x8a, +}; + +enum RQ_SQ_STATS { + RQ_SQ_STATS_OCTS, + RQ_SQ_STATS_PKTS, +}; + +struct rx_tx_queue_stats { + u64 bytes; + u64 pkts; +} ____cacheline_aligned_in_smp; + +struct q_desc_mem { + dma_addr_t dma; + u64 size; + u32 q_len; + dma_addr_t phys_base; + void *base; + void *unalign_base; +}; + +struct pgcache { + struct page *page; + int ref_count; + u64 dma_addr; +}; + +struct rbdr { + bool enable; + u32 dma_size; + u32 frag_len; + u32 thresh; /* Threshold level for interrupt */ + void *desc; + u32 head; + u32 tail; + struct q_desc_mem dmem; + bool is_xdp; + + /* For page recycling */ + int pgidx; + int pgcnt; + int pgalloc; + struct pgcache *pgcache; +} ____cacheline_aligned_in_smp; + +struct rcv_queue { + bool enable; + struct rbdr *rbdr_start; + struct rbdr *rbdr_cont; + bool en_tcp_reassembly; + u8 cq_qs; /* CQ's QS to which this RQ is assigned */ + u8 cq_idx; /* CQ index (0 to 7) in the QS */ + u8 cont_rbdr_qs; /* Continue buffer ptrs - QS num */ + u8 cont_qs_rbdr_idx; /* RBDR idx in the cont QS */ + u8 start_rbdr_qs; /* First buffer ptrs - QS num */ + u8 start_qs_rbdr_idx; /* RBDR idx in the above QS */ + u8 caching; + struct rx_tx_queue_stats stats; + struct xdp_rxq_info xdp_rxq; +} ____cacheline_aligned_in_smp; + +struct cmp_queue { + bool enable; + u16 thresh; + spinlock_t lock; /* lock to serialize processing CQEs */ + void *desc; + struct q_desc_mem dmem; + int irq; +} ____cacheline_aligned_in_smp; + +struct snd_queue { + bool enable; + u8 cq_qs; /* CQ's QS to which this SQ is pointing */ + u8 cq_idx; /* CQ index (0 to 7) in the above QS */ + u16 thresh; + atomic_t free_cnt; + u32 head; + u32 tail; + u64 *skbuff; + void *desc; + u64 *xdp_page; + u16 xdp_desc_cnt; + u16 xdp_free_cnt; + bool is_xdp; + + /* For TSO segment's header */ + char *tso_hdrs; + dma_addr_t tso_hdrs_phys; + + cpumask_t affinity_mask; + struct q_desc_mem dmem; + struct rx_tx_queue_stats stats; +} ____cacheline_aligned_in_smp; + +struct queue_set { + bool enable; + bool be_en; + u8 vnic_id; + u8 rq_cnt; + u8 cq_cnt; + u64 cq_len; + u8 sq_cnt; + u64 sq_len; + u8 rbdr_cnt; + u64 rbdr_len; + struct rcv_queue rq[MAX_RCV_QUEUES_PER_QS]; + struct cmp_queue cq[MAX_CMP_QUEUES_PER_QS]; + struct snd_queue sq[MAX_SND_QUEUES_PER_QS]; + struct rbdr rbdr[MAX_RCV_BUF_DESC_RINGS_PER_QS]; +} ____cacheline_aligned_in_smp; + +#define GET_RBDR_DESC(RING, idx)\ + (&(((struct rbdr_entry_t *)((RING)->desc))[idx])) +#define GET_SQ_DESC(RING, idx)\ + (&(((struct sq_hdr_subdesc *)((RING)->desc))[idx])) +#define GET_CQ_DESC(RING, idx)\ + (&(((union cq_desc_t *)((RING)->desc))[idx])) + +/* CQ status bits */ +#define CQ_WR_FULL BIT(26) +#define CQ_WR_DISABLE BIT(25) +#define CQ_WR_FAULT BIT(24) +#define CQ_CQE_COUNT (0xFFFF << 0) + +#define CQ_ERR_MASK (CQ_WR_FULL | CQ_WR_DISABLE | CQ_WR_FAULT) + +static inline u64 nicvf_iova_to_phys(struct nicvf *nic, dma_addr_t dma_addr) +{ + /* Translation is installed only when IOMMU is present */ + if (nic->iommu_domain) + return iommu_iova_to_phys(nic->iommu_domain, dma_addr); + return dma_addr; +} + +void nicvf_unmap_sndq_buffers(struct nicvf *nic, struct snd_queue *sq, + int hdr_sqe, u8 subdesc_cnt); +void nicvf_config_vlan_stripping(struct nicvf *nic, + netdev_features_t features); +int nicvf_set_qset_resources(struct nicvf *nic); +int nicvf_config_data_transfer(struct nicvf *nic, bool enable); +void nicvf_qset_config(struct nicvf *nic, bool enable); +void nicvf_cmp_queue_config(struct nicvf *nic, struct queue_set *qs, + int qidx, bool enable); + +void nicvf_sq_enable(struct nicvf *nic, struct snd_queue *sq, int qidx); +void nicvf_sq_disable(struct nicvf *nic, int qidx); +void nicvf_put_sq_desc(struct snd_queue *sq, int desc_cnt); +void nicvf_sq_free_used_descs(struct net_device *netdev, + struct snd_queue *sq, int qidx); +int nicvf_sq_append_skb(struct nicvf *nic, struct snd_queue *sq, + struct sk_buff *skb, u8 sq_num); +int nicvf_xdp_sq_append_pkt(struct nicvf *nic, struct snd_queue *sq, + u64 bufaddr, u64 dma_addr, u16 len); +void nicvf_xdp_sq_doorbell(struct nicvf *nic, struct snd_queue *sq, int sq_num); + +struct sk_buff *nicvf_get_rcv_skb(struct nicvf *nic, + struct cqe_rx_t *cqe_rx, bool xdp); +void nicvf_rbdr_task(struct tasklet_struct *t); +void nicvf_rbdr_work(struct work_struct *work); + +void nicvf_enable_intr(struct nicvf *nic, int int_type, int q_idx); +void nicvf_disable_intr(struct nicvf *nic, int int_type, int q_idx); +void nicvf_clear_intr(struct nicvf *nic, int int_type, int q_idx); +int nicvf_is_intr_enabled(struct nicvf *nic, int int_type, int q_idx); + +/* Register access APIs */ +void nicvf_reg_write(struct nicvf *nic, u64 offset, u64 val); +u64 nicvf_reg_read(struct nicvf *nic, u64 offset); +void nicvf_qset_reg_write(struct nicvf *nic, u64 offset, u64 val); +u64 nicvf_qset_reg_read(struct nicvf *nic, u64 offset); +void nicvf_queue_reg_write(struct nicvf *nic, u64 offset, + u64 qidx, u64 val); +u64 nicvf_queue_reg_read(struct nicvf *nic, + u64 offset, u64 qidx); + +/* Stats */ +void nicvf_update_rq_stats(struct nicvf *nic, int rq_idx); +void nicvf_update_sq_stats(struct nicvf *nic, int sq_idx); +int nicvf_check_cqe_rx_errs(struct nicvf *nic, struct cqe_rx_t *cqe_rx); +int nicvf_check_cqe_tx_errs(struct nicvf *nic, struct cqe_send_t *cqe_tx); +#endif /* NICVF_QUEUES_H */ |