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freebsd-skq/sys/dev/ixgbe/ixgbe.h
erj 4fd3548cad ixgbe(4): Convert driver to use iflib 
Initial update to the ixgbe PF and VF drivers to support the iflib interface.

The PF driver version is bumped to 4.0.0, and the VF driver version is bumped to 2.0.0.

Special thanks to sbruno@ for the support in helping make this conversion happen.

Submitted by:	Jeb Cramer <cramerj@intel.com>, Krzysztof Galazka (Chris) <krzysztof.galazka@intel.com>, Piotr Pietruszewski <piotr.pietruszewski@intel.com>
Reviewed by:	sbruno@, shurd@, #IntelNetworking
Tested by:	Jeffrey Pieper <jeffrey.e.pieper@intel.com>, Sergey Kozlov <kozlov.sergey.404@gmail.com>
Sponsored by:	Limelight Networks, Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D11727
2017-12-20 18:15:06 +00:00

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/******************************************************************************
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
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the Intel Corporation nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
/*$FreeBSD$*/
#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_HWSTATS | 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;
struct grouptask mod_task; /* SFP tasklet */
struct grouptask msf_task; /* Multispeed Fiber */
struct grouptask mbx_task; /* VF -> PF mailbox interrupt */
int sfp_reinit;
/* Flow Director */
int fdir_reinit;
struct grouptask fdir_task;
struct grouptask phy_task; /* PHY intr tasklet */
/*
* 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_ */
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