diff options
author | 2023-02-21 18:24:12 -0800 | |
---|---|---|
committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/intel/fm10k/fm10k.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/intel/fm10k/fm10k.h')
-rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k.h | 565 |
1 files changed, 565 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h new file mode 100644 index 000000000..6119a4108 --- /dev/null +++ b/drivers/net/ethernet/intel/fm10k/fm10k.h @@ -0,0 +1,565 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright(c) 2013 - 2019 Intel Corporation. */ + +#ifndef _FM10K_H_ +#define _FM10K_H_ + +#include <linux/types.h> +#include <linux/etherdevice.h> +#include <linux/cpumask.h> +#include <linux/rtnetlink.h> +#include <linux/if_vlan.h> +#include <linux/pci.h> + +#include "fm10k_pf.h" +#include "fm10k_vf.h" + +#define FM10K_MAX_JUMBO_FRAME_SIZE 15342 /* Maximum supported size 15K */ + +#define MAX_QUEUES FM10K_MAX_QUEUES_PF + +#define FM10K_MIN_RXD 128 +#define FM10K_MAX_RXD 4096 +#define FM10K_DEFAULT_RXD 256 + +#define FM10K_MIN_TXD 128 +#define FM10K_MAX_TXD 4096 +#define FM10K_DEFAULT_TXD 256 +#define FM10K_DEFAULT_TX_WORK 256 + +#define FM10K_RXBUFFER_256 256 +#define FM10K_RX_HDR_LEN FM10K_RXBUFFER_256 +#define FM10K_RXBUFFER_2048 2048 +#define FM10K_RX_BUFSZ FM10K_RXBUFFER_2048 + +/* How many Rx Buffers do we bundle into one write to the hardware ? */ +#define FM10K_RX_BUFFER_WRITE 16 /* Must be power of 2 */ + +#define FM10K_MAX_STATIONS 63 +struct fm10k_l2_accel { + int size; + u16 count; + u16 dglort; + struct rcu_head rcu; + struct net_device *macvlan[]; +}; + +enum fm10k_ring_state_t { + __FM10K_TX_DETECT_HANG, + __FM10K_HANG_CHECK_ARMED, + __FM10K_TX_XPS_INIT_DONE, + /* This must be last and is used to calculate BITMAP size */ + __FM10K_TX_STATE_SIZE__, +}; + +#define check_for_tx_hang(ring) \ + test_bit(__FM10K_TX_DETECT_HANG, (ring)->state) +#define set_check_for_tx_hang(ring) \ + set_bit(__FM10K_TX_DETECT_HANG, (ring)->state) +#define clear_check_for_tx_hang(ring) \ + clear_bit(__FM10K_TX_DETECT_HANG, (ring)->state) + +struct fm10k_tx_buffer { + struct fm10k_tx_desc *next_to_watch; + struct sk_buff *skb; + unsigned int bytecount; + u16 gso_segs; + u16 tx_flags; + DEFINE_DMA_UNMAP_ADDR(dma); + DEFINE_DMA_UNMAP_LEN(len); +}; + +struct fm10k_rx_buffer { + dma_addr_t dma; + struct page *page; + u32 page_offset; +}; + +struct fm10k_queue_stats { + u64 packets; + u64 bytes; +}; + +struct fm10k_tx_queue_stats { + u64 restart_queue; + u64 csum_err; + u64 tx_busy; + u64 tx_done_old; + u64 csum_good; +}; + +struct fm10k_rx_queue_stats { + u64 alloc_failed; + u64 csum_err; + u64 errors; + u64 csum_good; + u64 switch_errors; + u64 drops; + u64 pp_errors; + u64 link_errors; + u64 length_errors; +}; + +struct fm10k_ring { + struct fm10k_q_vector *q_vector;/* backpointer to host q_vector */ + struct net_device *netdev; /* netdev ring belongs to */ + struct device *dev; /* device for DMA mapping */ + struct fm10k_l2_accel __rcu *l2_accel; /* L2 acceleration list */ + void *desc; /* descriptor ring memory */ + union { + struct fm10k_tx_buffer *tx_buffer; + struct fm10k_rx_buffer *rx_buffer; + }; + u32 __iomem *tail; + DECLARE_BITMAP(state, __FM10K_TX_STATE_SIZE__); + dma_addr_t dma; /* phys. address of descriptor ring */ + unsigned int size; /* length in bytes */ + + u8 queue_index; /* needed for queue management */ + u8 reg_idx; /* holds the special value that gets + * the hardware register offset + * associated with this ring, which is + * different for DCB and RSS modes + */ + u8 qos_pc; /* priority class of queue */ + u16 vid; /* default VLAN ID of queue */ + u16 count; /* amount of descriptors */ + + u16 next_to_alloc; + u16 next_to_use; + u16 next_to_clean; + + struct fm10k_queue_stats stats; + struct u64_stats_sync syncp; + union { + /* Tx */ + struct fm10k_tx_queue_stats tx_stats; + /* Rx */ + struct { + struct fm10k_rx_queue_stats rx_stats; + struct sk_buff *skb; + }; + }; +} ____cacheline_internodealigned_in_smp; + +struct fm10k_ring_container { + struct fm10k_ring *ring; /* pointer to linked list of rings */ + unsigned int total_bytes; /* total bytes processed this int */ + unsigned int total_packets; /* total packets processed this int */ + u16 work_limit; /* total work allowed per interrupt */ + u16 itr; /* interrupt throttle rate value */ + u8 itr_scale; /* ITR adjustment based on PCI speed */ + u8 count; /* total number of rings in vector */ +}; + +#define FM10K_ITR_MAX 0x0FFF /* maximum value for ITR */ +#define FM10K_ITR_10K 100 /* 100us */ +#define FM10K_ITR_20K 50 /* 50us */ +#define FM10K_ITR_40K 25 /* 25us */ +#define FM10K_ITR_ADAPTIVE 0x8000 /* adaptive interrupt moderation flag */ + +#define ITR_IS_ADAPTIVE(itr) (!!(itr & FM10K_ITR_ADAPTIVE)) + +#define FM10K_TX_ITR_DEFAULT FM10K_ITR_40K +#define FM10K_RX_ITR_DEFAULT FM10K_ITR_20K +#define FM10K_ITR_ENABLE (FM10K_ITR_AUTOMASK | FM10K_ITR_MASK_CLEAR) + +static inline struct netdev_queue *txring_txq(const struct fm10k_ring *ring) +{ + return &ring->netdev->_tx[ring->queue_index]; +} + +/* iterator for handling rings in ring container */ +#define fm10k_for_each_ring(pos, head) \ + for (pos = &(head).ring[(head).count]; (--pos) >= (head).ring;) + +#define MAX_Q_VECTORS 256 +#define MIN_Q_VECTORS 1 +enum fm10k_non_q_vectors { + FM10K_MBX_VECTOR, + NON_Q_VECTORS +}; + +#define MIN_MSIX_COUNT(hw) (MIN_Q_VECTORS + NON_Q_VECTORS) + +struct fm10k_q_vector { + struct fm10k_intfc *interface; + u32 __iomem *itr; /* pointer to ITR register for this vector */ + u16 v_idx; /* index of q_vector within interface array */ + struct fm10k_ring_container rx, tx; + + struct napi_struct napi; + cpumask_t affinity_mask; + char name[IFNAMSIZ + 9]; + +#ifdef CONFIG_DEBUG_FS + struct dentry *dbg_q_vector; +#endif /* CONFIG_DEBUG_FS */ + struct rcu_head rcu; /* to avoid race with update stats on free */ + + /* for dynamic allocation of rings associated with this q_vector */ + struct fm10k_ring ring[] ____cacheline_internodealigned_in_smp; +}; + +enum fm10k_ring_f_enum { + RING_F_RSS, + RING_F_QOS, + RING_F_ARRAY_SIZE /* must be last in enum set */ +}; + +struct fm10k_ring_feature { + u16 limit; /* upper limit on feature indices */ + u16 indices; /* current value of indices */ + u16 mask; /* Mask used for feature to ring mapping */ + u16 offset; /* offset to start of feature */ +}; + +struct fm10k_iov_data { + unsigned int num_vfs; + unsigned int next_vf_mbx; + struct rcu_head rcu; + struct fm10k_vf_info vf_info[]; +}; + +enum fm10k_macvlan_request_type { + FM10K_UC_MAC_REQUEST, + FM10K_MC_MAC_REQUEST, + FM10K_VLAN_REQUEST +}; + +struct fm10k_macvlan_request { + enum fm10k_macvlan_request_type type; + struct list_head list; + union { + struct fm10k_mac_request { + u8 addr[ETH_ALEN]; + u16 glort; + u16 vid; + } mac; + struct fm10k_vlan_request { + u32 vid; + u8 vsi; + } vlan; + }; + bool set; +}; + +/* one work queue for entire driver */ +extern struct workqueue_struct *fm10k_workqueue; + +/* The following enumeration contains flags which indicate or enable modified + * driver behaviors. To avoid race conditions, the flags are stored in + * a BITMAP in the fm10k_intfc structure. The BITMAP should be accessed using + * atomic *_bit() operations. + */ +enum fm10k_flags_t { + FM10K_FLAG_RESET_REQUESTED, + FM10K_FLAG_RSS_FIELD_IPV4_UDP, + FM10K_FLAG_RSS_FIELD_IPV6_UDP, + FM10K_FLAG_SWPRI_CONFIG, + /* __FM10K_FLAGS_SIZE__ is used to calculate the size of + * interface->flags and must be the last value in this + * enumeration. + */ + __FM10K_FLAGS_SIZE__ +}; + +enum fm10k_state_t { + __FM10K_RESETTING, + __FM10K_RESET_DETACHED, + __FM10K_RESET_SUSPENDED, + __FM10K_DOWN, + __FM10K_SERVICE_SCHED, + __FM10K_SERVICE_REQUEST, + __FM10K_SERVICE_DISABLE, + __FM10K_MACVLAN_SCHED, + __FM10K_MACVLAN_REQUEST, + __FM10K_MACVLAN_DISABLE, + __FM10K_LINK_DOWN, + __FM10K_UPDATING_STATS, + /* This value must be last and determines the BITMAP size */ + __FM10K_STATE_SIZE__, +}; + +struct fm10k_intfc { + unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + struct net_device *netdev; + struct fm10k_l2_accel *l2_accel; /* pointer to L2 acceleration list */ + struct pci_dev *pdev; + DECLARE_BITMAP(state, __FM10K_STATE_SIZE__); + + /* Access flag values using atomic *_bit() operations */ + DECLARE_BITMAP(flags, __FM10K_FLAGS_SIZE__); + + int xcast_mode; + + /* Tx fast path data */ + int num_tx_queues; + u16 tx_itr; + + /* Rx fast path data */ + int num_rx_queues; + u16 rx_itr; + + /* TX */ + struct fm10k_ring *tx_ring[MAX_QUEUES] ____cacheline_aligned_in_smp; + + u64 restart_queue; + u64 tx_busy; + u64 tx_csum_errors; + u64 alloc_failed; + u64 rx_csum_errors; + + u64 tx_bytes_nic; + u64 tx_packets_nic; + u64 rx_bytes_nic; + u64 rx_packets_nic; + u64 rx_drops_nic; + u64 rx_overrun_pf; + u64 rx_overrun_vf; + + /* Debug Statistics */ + u64 hw_sm_mbx_full; + u64 hw_csum_tx_good; + u64 hw_csum_rx_good; + u64 rx_switch_errors; + u64 rx_drops; + u64 rx_pp_errors; + u64 rx_link_errors; + u64 rx_length_errors; + + u32 tx_timeout_count; + + /* RX */ + struct fm10k_ring *rx_ring[MAX_QUEUES]; + + /* Queueing vectors */ + struct fm10k_q_vector *q_vector[MAX_Q_VECTORS]; + struct msix_entry *msix_entries; + int num_q_vectors; /* current number of q_vectors for device */ + struct fm10k_ring_feature ring_feature[RING_F_ARRAY_SIZE]; + + /* SR-IOV information management structure */ + struct fm10k_iov_data *iov_data; + + struct fm10k_hw_stats stats; + struct fm10k_hw hw; + /* Mailbox lock */ + spinlock_t mbx_lock; + u32 __iomem *uc_addr; + u32 __iomem *sw_addr; + u16 msg_enable; + u16 tx_ring_count; + u16 rx_ring_count; + struct timer_list service_timer; + struct work_struct service_task; + unsigned long next_stats_update; + unsigned long next_tx_hang_check; + unsigned long last_reset; + unsigned long link_down_event; + bool host_ready; + bool lport_map_failed; + + u32 reta[FM10K_RETA_SIZE]; + u32 rssrk[FM10K_RSSRK_SIZE]; + + /* UDP encapsulation port tracking information */ + __be16 vxlan_port; + __be16 geneve_port; + + /* MAC/VLAN update queue */ + struct list_head macvlan_requests; + struct delayed_work macvlan_task; + /* MAC/VLAN update queue lock */ + spinlock_t macvlan_lock; + +#ifdef CONFIG_DEBUG_FS + struct dentry *dbg_intfc; +#endif /* CONFIG_DEBUG_FS */ + +#ifdef CONFIG_DCB + u8 pfc_en; +#endif + u8 rx_pause; + + /* GLORT resources in use by PF */ + u16 glort; + u16 glort_count; + + /* VLAN ID for updating multicast/unicast lists */ + u16 vid; +}; + +static inline void fm10k_mbx_lock(struct fm10k_intfc *interface) +{ + spin_lock(&interface->mbx_lock); +} + +static inline void fm10k_mbx_unlock(struct fm10k_intfc *interface) +{ + spin_unlock(&interface->mbx_lock); +} + +static inline int fm10k_mbx_trylock(struct fm10k_intfc *interface) +{ + return spin_trylock(&interface->mbx_lock); +} + +/* fm10k_test_staterr - test bits in Rx descriptor status and error fields */ +static inline __le32 fm10k_test_staterr(union fm10k_rx_desc *rx_desc, + const u32 stat_err_bits) +{ + return rx_desc->d.staterr & cpu_to_le32(stat_err_bits); +} + +/* fm10k_desc_unused - calculate if we have unused descriptors */ +static inline u16 fm10k_desc_unused(struct fm10k_ring *ring) +{ + s16 unused = ring->next_to_clean - ring->next_to_use - 1; + + return likely(unused < 0) ? unused + ring->count : unused; +} + +#define FM10K_TX_DESC(R, i) \ + (&(((struct fm10k_tx_desc *)((R)->desc))[i])) +#define FM10K_RX_DESC(R, i) \ + (&(((union fm10k_rx_desc *)((R)->desc))[i])) + +#define FM10K_MAX_TXD_PWR 14 +#define FM10K_MAX_DATA_PER_TXD (1u << FM10K_MAX_TXD_PWR) + +/* Tx Descriptors needed, worst case */ +#define TXD_USE_COUNT(S) DIV_ROUND_UP((S), FM10K_MAX_DATA_PER_TXD) +#define DESC_NEEDED (MAX_SKB_FRAGS + 4) + +enum fm10k_tx_flags { + /* Tx offload flags */ + FM10K_TX_FLAGS_CSUM = 0x01, +}; + +/* This structure is stored as little endian values as that is the native + * format of the Rx descriptor. The ordering of these fields is reversed + * from the actual ftag header to allow for a single bswap to take care + * of placing all of the values in network order + */ +union fm10k_ftag_info { + __le64 ftag; + struct { + /* dglort and sglort combined into a single 32bit desc read */ + __le32 glort; + /* upper 16 bits of VLAN are reserved 0 for swpri_type_user */ + __le32 vlan; + } d; + struct { + __le16 dglort; + __le16 sglort; + __le16 vlan; + __le16 swpri_type_user; + } w; +}; + +struct fm10k_cb { + union { + __le64 tstamp; + unsigned long ts_tx_timeout; + }; + union fm10k_ftag_info fi; +}; + +#define FM10K_CB(skb) ((struct fm10k_cb *)(skb)->cb) + +/* main */ +extern char fm10k_driver_name[]; +int fm10k_init_queueing_scheme(struct fm10k_intfc *interface); +void fm10k_clear_queueing_scheme(struct fm10k_intfc *interface); +__be16 fm10k_tx_encap_offload(struct sk_buff *skb); +netdev_tx_t fm10k_xmit_frame_ring(struct sk_buff *skb, + struct fm10k_ring *tx_ring); +void fm10k_tx_timeout_reset(struct fm10k_intfc *interface); +u64 fm10k_get_tx_pending(struct fm10k_ring *ring, bool in_sw); +bool fm10k_check_tx_hang(struct fm10k_ring *tx_ring); +void fm10k_alloc_rx_buffers(struct fm10k_ring *rx_ring, u16 cleaned_count); + +/* PCI */ +void fm10k_mbx_free_irq(struct fm10k_intfc *); +int fm10k_mbx_request_irq(struct fm10k_intfc *); +void fm10k_qv_free_irq(struct fm10k_intfc *interface); +int fm10k_qv_request_irq(struct fm10k_intfc *interface); +int fm10k_register_pci_driver(void); +void fm10k_unregister_pci_driver(void); +void fm10k_up(struct fm10k_intfc *interface); +void fm10k_down(struct fm10k_intfc *interface); +void fm10k_update_stats(struct fm10k_intfc *interface); +void fm10k_service_event_schedule(struct fm10k_intfc *interface); +void fm10k_macvlan_schedule(struct fm10k_intfc *interface); +void fm10k_update_rx_drop_en(struct fm10k_intfc *interface); + +/* Netdev */ +struct net_device *fm10k_alloc_netdev(const struct fm10k_info *info); +int fm10k_setup_rx_resources(struct fm10k_ring *); +int fm10k_setup_tx_resources(struct fm10k_ring *); +void fm10k_free_rx_resources(struct fm10k_ring *); +void fm10k_free_tx_resources(struct fm10k_ring *); +void fm10k_clean_all_rx_rings(struct fm10k_intfc *); +void fm10k_clean_all_tx_rings(struct fm10k_intfc *); +void fm10k_unmap_and_free_tx_resource(struct fm10k_ring *, + struct fm10k_tx_buffer *); +void fm10k_restore_rx_state(struct fm10k_intfc *); +void fm10k_reset_rx_state(struct fm10k_intfc *); +int fm10k_setup_tc(struct net_device *dev, u8 tc); +int fm10k_open(struct net_device *netdev); +int fm10k_close(struct net_device *netdev); +int fm10k_queue_vlan_request(struct fm10k_intfc *interface, u32 vid, + u8 vsi, bool set); +int fm10k_queue_mac_request(struct fm10k_intfc *interface, u16 glort, + const unsigned char *addr, u16 vid, bool set); +void fm10k_clear_macvlan_queue(struct fm10k_intfc *interface, + u16 glort, bool vlans); + +/* Ethtool */ +void fm10k_set_ethtool_ops(struct net_device *dev); +void fm10k_write_reta(struct fm10k_intfc *interface, const u32 *indir); + +/* IOV */ +s32 fm10k_iov_event(struct fm10k_intfc *interface); +s32 fm10k_iov_mbx(struct fm10k_intfc *interface); +void fm10k_iov_suspend(struct pci_dev *pdev); +int fm10k_iov_resume(struct pci_dev *pdev); +void fm10k_iov_disable(struct pci_dev *pdev); +int fm10k_iov_configure(struct pci_dev *pdev, int num_vfs); +void fm10k_iov_update_stats(struct fm10k_intfc *interface); +s32 fm10k_iov_update_pvid(struct fm10k_intfc *interface, u16 glort, u16 pvid); +int fm10k_ndo_set_vf_mac(struct net_device *netdev, int vf_idx, u8 *mac); +int fm10k_ndo_set_vf_vlan(struct net_device *netdev, + int vf_idx, u16 vid, u8 qos, __be16 vlan_proto); +int fm10k_ndo_set_vf_bw(struct net_device *netdev, int vf_idx, + int __always_unused min_rate, int max_rate); +int fm10k_ndo_get_vf_config(struct net_device *netdev, + int vf_idx, struct ifla_vf_info *ivi); +int fm10k_ndo_get_vf_stats(struct net_device *netdev, + int vf_idx, struct ifla_vf_stats *stats); + +/* DebugFS */ +#ifdef CONFIG_DEBUG_FS +void fm10k_dbg_q_vector_init(struct fm10k_q_vector *q_vector); +void fm10k_dbg_q_vector_exit(struct fm10k_q_vector *q_vector); +void fm10k_dbg_intfc_init(struct fm10k_intfc *interface); +void fm10k_dbg_intfc_exit(struct fm10k_intfc *interface); +void fm10k_dbg_init(void); +void fm10k_dbg_exit(void); +#else +static inline void fm10k_dbg_q_vector_init(struct fm10k_q_vector *q_vector) {} +static inline void fm10k_dbg_q_vector_exit(struct fm10k_q_vector *q_vector) {} +static inline void fm10k_dbg_intfc_init(struct fm10k_intfc *interface) {} +static inline void fm10k_dbg_intfc_exit(struct fm10k_intfc *interface) {} +static inline void fm10k_dbg_init(void) {} +static inline void fm10k_dbg_exit(void) {} +#endif /* CONFIG_DEBUG_FS */ + +/* DCB */ +#ifdef CONFIG_DCB +void fm10k_dcbnl_set_ops(struct net_device *dev); +#else +static inline void fm10k_dcbnl_set_ops(struct net_device *dev) {} +#endif +#endif /* _FM10K_H_ */ |