freebsd-dev/sys/dev/ixgbe/ixgbe.h
Eric Joyner b2c1e8e620 ix(4): Run {mod,msf,mbx,fdir,phy}_task in if_update_admin_status
From Piotr:

This patch introduces adapter->task_requests register responsible for
recording requests for mod_task, msf_task, mbx_task, fdir_task and
phy_task calls. Instead of enqueueing these tasks with
GROUPTASK_ENQUEUE, handlers will be called directly from
ixgbe_if_update_admin_status() while holding ctx lock.

SIOCGIFXMEDIA ioctl() call reads adapter->media list. The list is
deleted and rewritten in ixgbe_handle_msf() task without holding ctx
lock. This change is needed to maintain data coherency when sharing
adapter info via ioctl() calls.

Patch co-authored by Krzysztof Galazka <krzysztof.galazka@intel.com>.

PR:		221317
Submitted by:	Piotr Pietruszewski <piotr.pietruszewski@intel.com>
Reviewed by:	sbruno@, IntelNetworking
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D18468
2019-01-31 21:44:33 +00:00

586 lines
18 KiB
C

/******************************************************************************
SPDX-License-Identifier: BSD-3-Clause
Copyright (c) 2001-2017, Intel Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
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/*$FreeBSD$*/
#ifndef _IXGBE_H_
#define _IXGBE_H_
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/buf_ring.h>
#include <sys/mbuf.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/sockio.h>
#include <sys/eventhandler.h>
#include <net/if.h>
#include <net/if_var.h>
#include <net/if_arp.h>
#include <net/bpf.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/if_types.h>
#include <net/if_vlan_var.h>
#include <net/iflib.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <machine/resource.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/clock.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <sys/endian.h>
#include <sys/gtaskqueue.h>
#include <sys/pcpu.h>
#include <sys/smp.h>
#include <machine/smp.h>
#include <sys/sbuf.h>
#include "ixgbe_api.h"
#include "ixgbe_common.h"
#include "ixgbe_phy.h"
#include "ixgbe_vf.h"
#include "ixgbe_features.h"
/* Tunables */
/*
* TxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
* number of transmit descriptors allocated by the driver. Increasing this
* value allows the driver to queue more transmits. Each descriptor is 16
* bytes. Performance tests have show the 2K value to be optimal for top
* performance.
*/
#define DEFAULT_TXD 2048
#define PERFORM_TXD 2048
#define MAX_TXD 4096
#define MIN_TXD 64
/*
* RxDescriptors Valid Range: 64-4096 Default Value: 256 This value is the
* number of receive descriptors allocated for each RX queue. Increasing this
* value allows the driver to buffer more incoming packets. Each descriptor
* is 16 bytes. A receive buffer is also allocated for each descriptor.
*
* Note: with 8 rings and a dual port card, it is possible to bump up
* against the system mbuf pool limit, you can tune nmbclusters
* to adjust for this.
*/
#define DEFAULT_RXD 2048
#define PERFORM_RXD 2048
#define MAX_RXD 4096
#define MIN_RXD 64
/* Alignment for rings */
#define DBA_ALIGN 128
/*
* This is the max watchdog interval, ie. the time that can
* pass between any two TX clean operations, such only happening
* when the TX hardware is functioning.
*/
#define IXGBE_WATCHDOG (10 * hz)
/*
* This parameters control when the driver calls the routine to reclaim
* transmit descriptors.
*/
#define IXGBE_TX_CLEANUP_THRESHOLD(_a) ((_a)->num_tx_desc / 8)
#define IXGBE_TX_OP_THRESHOLD(_a) ((_a)->num_tx_desc / 32)
/* These defines are used in MTU calculations */
#define IXGBE_MAX_FRAME_SIZE 9728
#define IXGBE_MTU_HDR (ETHER_HDR_LEN + ETHER_CRC_LEN)
#define IXGBE_MTU_HDR_VLAN (ETHER_HDR_LEN + ETHER_CRC_LEN + \
ETHER_VLAN_ENCAP_LEN)
#define IXGBE_MAX_MTU (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR)
#define IXGBE_MAX_MTU_VLAN (IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR_VLAN)
/* Flow control constants */
#define IXGBE_FC_PAUSE 0xFFFF
#define IXGBE_FC_HI 0x20000
#define IXGBE_FC_LO 0x10000
/*
* Used for optimizing small rx mbufs. Effort is made to keep the copy
* small and aligned for the CPU L1 cache.
*
* MHLEN is typically 168 bytes, giving us 8-byte alignment. Getting
* 32 byte alignment needed for the fast bcopy results in 8 bytes being
* wasted. Getting 64 byte alignment, which _should_ be ideal for
* modern Intel CPUs, results in 40 bytes wasted and a significant drop
* in observed efficiency of the optimization, 97.9% -> 81.8%.
*/
#if __FreeBSD_version < 1002000
#define MPKTHSIZE (sizeof(struct m_hdr) + sizeof(struct pkthdr))
#endif
#define IXGBE_RX_COPY_HDR_PADDED ((((MPKTHSIZE - 1) / 32) + 1) * 32)
#define IXGBE_RX_COPY_LEN (MSIZE - IXGBE_RX_COPY_HDR_PADDED)
#define IXGBE_RX_COPY_ALIGN (IXGBE_RX_COPY_HDR_PADDED - MPKTHSIZE)
/* Keep older OS drivers building... */
#if !defined(SYSCTL_ADD_UQUAD)
#define SYSCTL_ADD_UQUAD SYSCTL_ADD_QUAD
#endif
/* Defines for printing debug information */
#define DEBUG_INIT 0
#define DEBUG_IOCTL 0
#define DEBUG_HW 0
#define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n")
#define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A)
#define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B)
#define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n")
#define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A)
#define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B)
#define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n")
#define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A)
#define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B)
#define MAX_NUM_MULTICAST_ADDRESSES 128
#define IXGBE_82598_SCATTER 100
#define IXGBE_82599_SCATTER 32
#define MSIX_82598_BAR 3
#define MSIX_82599_BAR 4
#define IXGBE_TSO_SIZE 262140
#define IXGBE_RX_HDR 128
#define IXGBE_VFTA_SIZE 128
#define IXGBE_BR_SIZE 4096
#define IXGBE_QUEUE_MIN_FREE 32
#define IXGBE_MAX_TX_BUSY 10
#define IXGBE_QUEUE_HUNG 0x80000000
#define IXGBE_EITR_DEFAULT 128
/* Supported offload bits in mbuf flag */
#if __FreeBSD_version >= 1000000
#define CSUM_OFFLOAD (CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP| \
CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP| \
CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP)
#elif __FreeBSD_version >= 800000
#define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
#else
#define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP)
#endif
#define IXGBE_CAPS (IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 | IFCAP_TSO | \
IFCAP_LRO | IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWTSO | \
IFCAP_VLAN_HWCSUM | IFCAP_JUMBO_MTU | IFCAP_VLAN_MTU | \
IFCAP_VLAN_HWFILTER | IFCAP_WOL)
/* Backward compatibility items for very old versions */
#ifndef pci_find_cap
#define pci_find_cap pci_find_extcap
#endif
#ifndef DEVMETHOD_END
#define DEVMETHOD_END { NULL, NULL }
#endif
/*
* Interrupt Moderation parameters
*/
#define IXGBE_LOW_LATENCY 128
#define IXGBE_AVE_LATENCY 400
#define IXGBE_BULK_LATENCY 1200
/* Using 1FF (the max value), the interval is ~1.05ms */
#define IXGBE_LINK_ITR_QUANTA 0x1FF
#define IXGBE_LINK_ITR ((IXGBE_LINK_ITR_QUANTA << 3) & \
IXGBE_EITR_ITR_INT_MASK)
/************************************************************************
* vendor_info_array
*
* Contains the list of Subvendor/Subdevice IDs on
* which the driver should load.
************************************************************************/
typedef struct _ixgbe_vendor_info_t {
unsigned int vendor_id;
unsigned int device_id;
unsigned int subvendor_id;
unsigned int subdevice_id;
unsigned int index;
} ixgbe_vendor_info_t;
struct ixgbe_bp_data {
u32 low;
u32 high;
u32 log;
};
/*
*/
struct ixgbe_dma_alloc {
bus_addr_t dma_paddr;
caddr_t dma_vaddr;
bus_dma_tag_t dma_tag;
bus_dmamap_t dma_map;
bus_dma_segment_t dma_seg;
bus_size_t dma_size;
int dma_nseg;
};
struct ixgbe_mc_addr {
u8 addr[IXGBE_ETH_LENGTH_OF_ADDRESS];
u32 vmdq;
};
/*
* The transmit ring, one per queue
*/
struct tx_ring {
struct adapter *adapter;
union ixgbe_adv_tx_desc *tx_base;
uint64_t tx_paddr;
u32 tail;
qidx_t *tx_rsq;
qidx_t tx_rs_cidx;
qidx_t tx_rs_pidx;
qidx_t tx_cidx_processed;
uint8_t me;
/* Flow Director */
u16 atr_sample;
u16 atr_count;
u32 bytes; /* used for AIM */
u32 packets;
/* Soft Stats */
u64 tso_tx;
u64 total_packets;
};
/*
* The Receive ring, one per rx queue
*/
struct rx_ring {
struct ix_rx_queue *que;
struct adapter *adapter;
u32 me;
u32 tail;
union ixgbe_adv_rx_desc *rx_base;
bool hw_rsc;
bool vtag_strip;
uint64_t rx_paddr;
bus_dma_tag_t ptag;
u32 bytes; /* Used for AIM calc */
u32 packets;
/* Soft stats */
u64 rx_irq;
u64 rx_copies;
u64 rx_packets;
u64 rx_bytes;
u64 rx_discarded;
u64 rsc_num;
/* Flow Director */
u64 flm;
};
/*
* Driver queue struct: this is the interrupt container
* for the associated tx and rx ring.
*/
struct ix_rx_queue {
struct adapter *adapter;
u32 msix; /* This queue's MSIX vector */
u32 eims; /* This queue's EIMS bit */
u32 eitr_setting;
struct resource *res;
void *tag;
int busy;
struct rx_ring rxr;
struct if_irq que_irq;
u64 irqs;
};
struct ix_tx_queue {
struct adapter *adapter;
u32 msix; /* This queue's MSIX vector */
struct tx_ring txr;
};
#define IXGBE_MAX_VF_MC 30 /* Max number of multicast entries */
struct ixgbe_vf {
u_int pool;
u_int rar_index;
u_int maximum_frame_size;
uint32_t flags;
uint8_t ether_addr[ETHER_ADDR_LEN];
uint16_t mc_hash[IXGBE_MAX_VF_MC];
uint16_t num_mc_hashes;
uint16_t default_vlan;
uint16_t vlan_tag;
uint16_t api_ver;
};
/* Our adapter structure */
struct adapter {
struct ixgbe_hw hw;
struct ixgbe_osdep osdep;
if_ctx_t ctx;
if_softc_ctx_t shared;
#define num_tx_queues shared->isc_ntxqsets
#define num_rx_queues shared->isc_nrxqsets
#define max_frame_size shared->isc_max_frame_size
#define intr_type shared->isc_intr
device_t dev;
struct ifnet *ifp;
struct resource *pci_mem;
/*
* Interrupt resources: this set is
* either used for legacy, or for Link
* when doing MSI-X
*/
struct if_irq irq;
void *tag;
struct resource *res;
struct ifmedia *media;
int if_flags;
int msix;
u16 num_vlans;
/*
* Shadow VFTA table, this is needed because
* the real vlan filter table gets cleared during
* a soft reset and the driver needs to be able
* to repopulate it.
*/
u32 shadow_vfta[IXGBE_VFTA_SIZE];
/* Info about the interface */
int advertise; /* link speeds */
bool link_active;
u16 num_segs;
u32 link_speed;
bool link_up;
u32 vector;
u16 dmac;
u32 phy_layer;
/* Power management-related */
bool wol_support;
u32 wufc;
/* Mbuf cluster size */
u32 rx_mbuf_sz;
/* Support for pluggable optics */
bool sfp_probe;
/* Flow Director */
int fdir_reinit;
u32 task_requests;
/*
* Queues:
* This is the irq holder, it has
* and RX/TX pair or rings associated
* with it.
*/
struct ix_tx_queue *tx_queues;
struct ix_rx_queue *rx_queues;
u64 active_queues;
/* Multicast array memory */
struct ixgbe_mc_addr *mta;
/* SR-IOV */
int iov_mode;
int num_vfs;
int pool;
struct ixgbe_vf *vfs;
/* Bypass */
struct ixgbe_bp_data bypass;
/* Misc stats maintained by the driver */
unsigned long dropped_pkts;
unsigned long mbuf_header_failed;
unsigned long mbuf_packet_failed;
unsigned long watchdog_events;
unsigned long link_irq;
union {
struct ixgbe_hw_stats pf;
struct ixgbevf_hw_stats vf;
} stats;
#if __FreeBSD_version >= 1100036
/* counter(9) stats */
u64 ipackets;
u64 ierrors;
u64 opackets;
u64 oerrors;
u64 ibytes;
u64 obytes;
u64 imcasts;
u64 omcasts;
u64 iqdrops;
u64 noproto;
#endif
/* Feature capable/enabled flags. See ixgbe_features.h */
u32 feat_cap;
u32 feat_en;
};
/* Precision Time Sync (IEEE 1588) defines */
#define ETHERTYPE_IEEE1588 0x88F7
#define PICOSECS_PER_TICK 20833
#define TSYNC_UDP_PORT 319 /* UDP port for the protocol */
#define IXGBE_ADVTXD_TSTAMP 0x00080000
/* For backward compatibility */
#if !defined(PCIER_LINK_STA)
#define PCIER_LINK_STA PCIR_EXPRESS_LINK_STA
#endif
/* Stats macros */
#if __FreeBSD_version >= 1100036
#define IXGBE_SET_IPACKETS(sc, count) (sc)->ipackets = (count)
#define IXGBE_SET_IERRORS(sc, count) (sc)->ierrors = (count)
#define IXGBE_SET_OPACKETS(sc, count) (sc)->opackets = (count)
#define IXGBE_SET_OERRORS(sc, count) (sc)->oerrors = (count)
#define IXGBE_SET_COLLISIONS(sc, count)
#define IXGBE_SET_IBYTES(sc, count) (sc)->ibytes = (count)
#define IXGBE_SET_OBYTES(sc, count) (sc)->obytes = (count)
#define IXGBE_SET_IMCASTS(sc, count) (sc)->imcasts = (count)
#define IXGBE_SET_OMCASTS(sc, count) (sc)->omcasts = (count)
#define IXGBE_SET_IQDROPS(sc, count) (sc)->iqdrops = (count)
#else
#define IXGBE_SET_IPACKETS(sc, count) (sc)->ifp->if_ipackets = (count)
#define IXGBE_SET_IERRORS(sc, count) (sc)->ifp->if_ierrors = (count)
#define IXGBE_SET_OPACKETS(sc, count) (sc)->ifp->if_opackets = (count)
#define IXGBE_SET_OERRORS(sc, count) (sc)->ifp->if_oerrors = (count)
#define IXGBE_SET_COLLISIONS(sc, count) (sc)->ifp->if_collisions = (count)
#define IXGBE_SET_IBYTES(sc, count) (sc)->ifp->if_ibytes = (count)
#define IXGBE_SET_OBYTES(sc, count) (sc)->ifp->if_obytes = (count)
#define IXGBE_SET_IMCASTS(sc, count) (sc)->ifp->if_imcasts = (count)
#define IXGBE_SET_OMCASTS(sc, count) (sc)->ifp->if_omcasts = (count)
#define IXGBE_SET_IQDROPS(sc, count) (sc)->ifp->if_iqdrops = (count)
#endif
/* External PHY register addresses */
#define IXGBE_PHY_CURRENT_TEMP 0xC820
#define IXGBE_PHY_OVERTEMP_STATUS 0xC830
/* Sysctl help messages; displayed with sysctl -d */
#define IXGBE_SYSCTL_DESC_ADV_SPEED \
"\nControl advertised link speed using these flags:\n" \
"\t0x1 - advertise 100M\n" \
"\t0x2 - advertise 1G\n" \
"\t0x4 - advertise 10G\n" \
"\t0x8 - advertise 10M\n\n" \
"\t100M and 10M are only supported on certain adapters.\n"
#define IXGBE_SYSCTL_DESC_SET_FC \
"\nSet flow control mode using these values:\n" \
"\t0 - off\n" \
"\t1 - rx pause\n" \
"\t2 - tx pause\n" \
"\t3 - tx and rx pause"
/* Workaround to make 8.0 buildable */
#if __FreeBSD_version >= 800000 && __FreeBSD_version < 800504
static __inline int
drbr_needs_enqueue(struct ifnet *ifp, struct buf_ring *br)
{
#ifdef ALTQ
if (ALTQ_IS_ENABLED(&ifp->if_snd))
return (1);
#endif
return (!buf_ring_empty(br));
}
#endif
/*
* This checks for a zero mac addr, something that will be likely
* unless the Admin on the Host has created one.
*/
static inline bool
ixv_check_ether_addr(u8 *addr)
{
bool status = TRUE;
if ((addr[0] == 0 && addr[1]== 0 && addr[2] == 0 &&
addr[3] == 0 && addr[4]== 0 && addr[5] == 0))
status = FALSE;
return (status);
}
/* Shared Prototypes */
int ixgbe_allocate_queues(struct adapter *);
int ixgbe_setup_transmit_structures(struct adapter *);
void ixgbe_free_transmit_structures(struct adapter *);
int ixgbe_setup_receive_structures(struct adapter *);
void ixgbe_free_receive_structures(struct adapter *);
int ixgbe_get_regs(SYSCTL_HANDLER_ARGS);
#include "ixgbe_bypass.h"
#include "ixgbe_fdir.h"
#include "ixgbe_rss.h"
#endif /* _IXGBE_H_ */