freebsd-dev/sys/dev/ixl/ixl.h
Eric Joyner b4a7ce0690 ixl(4): Add FW recovery mode support and other things
Update the iflib version of ixl driver based on the OOT version ixl-1.11.29.

Major changes:

- Extract iflib specific functions from ixl_pf_main.c to ixl_pf_iflib.c
  to simplify code sharing between legacy and iflib version of driver

- Add support for most recent FW API version (1.10), which extends FW
  LLDP Agent control by user to X722 devices

- Improve handling of device global reset

- Add support for the FW recovery mode

- Use virtchnl function to validate virtual channel messages instead of
  using separate checks

- Fix MAC/VLAN filters accounting

Submitted by:	Krzysztof Galazka <krzysztof.galazka@intel.com>
Reviewed by:	erj@
Tested by:	Jeffrey Pieper <jeffrey.e.pieper@intel.com>
MFC after:	1 week
Relnotes:	yes
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D24564
2020-06-09 22:42:54 +00:00

561 lines
15 KiB
C

/******************************************************************************
Copyright (c) 2013-2018, 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,
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3. Neither the name of the Intel Corporation nor the names of its
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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******************************************************************************/
/*$FreeBSD$*/
#ifndef _IXL_H_
#define _IXL_H_
#include "opt_inet.h"
#include "opt_inet6.h"
#include "opt_rss.h"
#include "opt_ixl.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 <sys/syslog.h>
#include <sys/priv.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/iflib.h>
#include <net/bpf.h>
#include <net/if_types.h>
#include <net/if_vlan_var.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/if_ether.h>
#include <netinet/ip.h>
#include <netinet/ip6.h>
#include <netinet/tcp.h>
#include <netinet/tcp_lro.h>
#include <netinet/udp.h>
#include <netinet/sctp.h>
#include <machine/in_cksum.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/taskqueue.h>
#include <sys/pcpu.h>
#include <sys/smp.h>
#include <sys/sbuf.h>
#include <machine/smp.h>
#include <machine/stdarg.h>
#ifdef RSS
#include <net/rss_config.h>
#include <netinet/in_rss.h>
#endif
#include "ifdi_if.h"
#include "i40e_type.h"
#include "i40e_prototype.h"
#include "ixl_debug.h"
#define PVIDV(vendor, devid, name) \
PVID(vendor, devid, name " - " IXL_DRIVER_VERSION_STRING)
/* Tunables */
/*
* Ring Descriptors Valid Range: 32-4096 Default Value: 1024 This value is the
* number of tx/rx descriptors allocated by the driver. Increasing this
* value allows the driver to queue more operations.
*
* Tx descriptors are always 16 bytes, but Rx descriptors can be 32 bytes.
* The driver currently always uses 32 byte Rx descriptors.
*/
#define IXL_DEFAULT_RING 1024
#define IXL_MAX_RING 4096
#define IXL_MIN_RING 64
#define IXL_RING_INCREMENT 32
#define IXL_AQ_LEN 256
#define IXL_AQ_LEN_MAX 1024
/* Alignment for rings */
#define DBA_ALIGN 128
#define MAX_MULTICAST_ADDR 128
#define IXL_MSIX_BAR 3
#define IXL_ADM_LIMIT 2
#define IXL_TSO_SIZE ((255*1024)-1)
#define IXL_TX_BUF_SZ ((u32) 1514)
#define IXL_AQ_BUF_SZ ((u32) 4096)
#define IXL_RX_ITR 0
#define IXL_TX_ITR 1
#define IXL_ITR_NONE 3
#define IXL_QUEUE_EOL 0x7FF
#define IXL_MIN_FRAME 17
#define IXL_MAX_FRAME 9728
#define IXL_MAX_TX_SEGS 8
#define IXL_MAX_RX_SEGS 5
#define IXL_MAX_TSO_SEGS 128
#define IXL_SPARSE_CHAIN 7
#define IXL_MIN_TSO_MSS 64
#define IXL_MAX_TSO_MSS 9668
#define IXL_MAX_DMA_SEG_SIZE ((16 * 1024) - 1)
#define IXL_RSS_KEY_SIZE_REG 13
#define IXL_RSS_KEY_SIZE (IXL_RSS_KEY_SIZE_REG * 4)
#define IXL_RSS_VSI_LUT_SIZE 64 /* X722 -> VSI, X710 -> VF */
#define IXL_RSS_VSI_LUT_ENTRY_MASK 0x3F
#define IXL_RSS_VF_LUT_ENTRY_MASK 0xF
#define IXL_VF_MAX_BUFFER 0x3F80
#define IXL_VF_MAX_HDR_BUFFER 0x840
#define IXL_VF_MAX_FRAME 0x3FFF
/* ERJ: hardware can support ~2k (SW5+) filters between all functions */
#define IXL_MAX_FILTERS 256
#define IXL_NVM_VERSION_LO_SHIFT 0
#define IXL_NVM_VERSION_LO_MASK (0xff << IXL_NVM_VERSION_LO_SHIFT)
#define IXL_NVM_VERSION_HI_SHIFT 12
#define IXL_NVM_VERSION_HI_MASK (0xf << IXL_NVM_VERSION_HI_SHIFT)
/*
* Interrupt Moderation parameters
* Multiply ITR values by 2 for real ITR value
*/
#define IXL_MAX_ITR 0x0FF0
#define IXL_ITR_100K 0x0005
#define IXL_ITR_20K 0x0019
#define IXL_ITR_8K 0x003E
#define IXL_ITR_4K 0x007A
#define IXL_ITR_1K 0x01F4
#define IXL_ITR_DYNAMIC 0x8000
#define IXL_LOW_LATENCY 0
#define IXL_AVE_LATENCY 1
#define IXL_BULK_LATENCY 2
/* MacVlan Flags */
#define IXL_FILTER_USED (u16)(1 << 0)
#define IXL_FILTER_VLAN (u16)(1 << 1)
#define IXL_FILTER_ADD (u16)(1 << 2)
#define IXL_FILTER_DEL (u16)(1 << 3)
#define IXL_FILTER_MC (u16)(1 << 4)
/* used in the vlan field of the filter when not a vlan */
#define IXL_VLAN_ANY -1
#define CSUM_OFFLOAD_IPV4 (CSUM_IP|CSUM_TCP|CSUM_UDP|CSUM_SCTP)
#define CSUM_OFFLOAD_IPV6 (CSUM_TCP_IPV6|CSUM_UDP_IPV6|CSUM_SCTP_IPV6)
#define CSUM_OFFLOAD (CSUM_OFFLOAD_IPV4|CSUM_OFFLOAD_IPV6|CSUM_TSO)
/* Misc flags for ixl_vsi.flags */
#define IXL_FLAGS_KEEP_TSO4 (1 << 0)
#define IXL_FLAGS_KEEP_TSO6 (1 << 1)
#define IXL_FLAGS_USES_MSIX (1 << 2)
#define IXL_FLAGS_IS_VF (1 << 3)
#define IXL_VSI_IS_PF(v) ((v->flags & IXL_FLAGS_IS_VF) == 0)
#define IXL_VSI_IS_VF(v) ((v->flags & IXL_FLAGS_IS_VF) != 0)
#define IXL_VF_RESET_TIMEOUT 100
#define IXL_VSI_DATA_PORT 0x01
#define IAVF_MAX_QUEUES 16
#define IXL_MAX_VSI_QUEUES (2 * (I40E_VSILAN_QTABLE_MAX_INDEX + 1))
#define IXL_RX_CTX_BASE_UNITS 128
#define IXL_TX_CTX_BASE_UNITS 128
#define IXL_PF_PCI_CIAA_VF_DEVICE_STATUS 0xAA
#define IXL_PF_PCI_CIAD_VF_TRANS_PENDING_MASK 0x20
#define IXL_GLGEN_VFLRSTAT_INDEX(glb_vf) ((glb_vf) / 32)
#define IXL_GLGEN_VFLRSTAT_MASK(glb_vf) (1 << ((glb_vf) % 32))
#define IXL_MAX_ITR_IDX 3
#define IXL_END_OF_INTR_LNKLST 0x7FF
#define IXL_DEFAULT_RSS_HENA_BASE (\
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_SCTP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | \
BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_SCTP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | \
BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6) | \
BIT_ULL(I40E_FILTER_PCTYPE_L2_PAYLOAD))
#define IXL_DEFAULT_RSS_HENA_XL710 IXL_DEFAULT_RSS_HENA_BASE
#define IXL_DEFAULT_RSS_HENA_X722 (\
IXL_DEFAULT_RSS_HENA_BASE | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK) | \
BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK))
#define IXL_CAPS \
(IFCAP_TSO4 | IFCAP_TSO6 | \
IFCAP_TXCSUM | IFCAP_TXCSUM_IPV6 | \
IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6 | \
IFCAP_VLAN_HWFILTER | IFCAP_VLAN_HWTSO | \
IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM | \
IFCAP_VLAN_MTU | IFCAP_JUMBO_MTU | IFCAP_LRO)
#define IXL_CSUM_TCP \
(CSUM_IP_TCP|CSUM_IP_TSO|CSUM_IP6_TSO|CSUM_IP6_TCP)
#define IXL_CSUM_UDP \
(CSUM_IP_UDP|CSUM_IP6_UDP)
#define IXL_CSUM_SCTP \
(CSUM_IP_SCTP|CSUM_IP6_SCTP)
#define IXL_CSUM_IPV4 \
(CSUM_IP|CSUM_IP_TSO)
/* Pre-11 counter(9) compatibility */
#if __FreeBSD_version >= 1100036
#define IXL_SET_IPACKETS(vsi, count) (vsi)->ipackets = (count)
#define IXL_SET_IERRORS(vsi, count) (vsi)->ierrors = (count)
#define IXL_SET_OPACKETS(vsi, count) (vsi)->opackets = (count)
#define IXL_SET_OERRORS(vsi, count) (vsi)->oerrors = (count)
#define IXL_SET_COLLISIONS(vsi, count) /* Do nothing; collisions is always 0. */
#define IXL_SET_IBYTES(vsi, count) (vsi)->ibytes = (count)
#define IXL_SET_OBYTES(vsi, count) (vsi)->obytes = (count)
#define IXL_SET_IMCASTS(vsi, count) (vsi)->imcasts = (count)
#define IXL_SET_OMCASTS(vsi, count) (vsi)->omcasts = (count)
#define IXL_SET_IQDROPS(vsi, count) (vsi)->iqdrops = (count)
#define IXL_SET_OQDROPS(vsi, count) (vsi)->oqdrops = (count)
#define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
#else
#define IXL_SET_IPACKETS(vsi, count) (vsi)->ifp->if_ipackets = (count)
#define IXL_SET_IERRORS(vsi, count) (vsi)->ifp->if_ierrors = (count)
#define IXL_SET_OPACKETS(vsi, count) (vsi)->ifp->if_opackets = (count)
#define IXL_SET_OERRORS(vsi, count) (vsi)->ifp->if_oerrors = (count)
#define IXL_SET_COLLISIONS(vsi, count) (vsi)->ifp->if_collisions = (count)
#define IXL_SET_IBYTES(vsi, count) (vsi)->ifp->if_ibytes = (count)
#define IXL_SET_OBYTES(vsi, count) (vsi)->ifp->if_obytes = (count)
#define IXL_SET_IMCASTS(vsi, count) (vsi)->ifp->if_imcasts = (count)
#define IXL_SET_OMCASTS(vsi, count) (vsi)->ifp->if_omcasts = (count)
#define IXL_SET_IQDROPS(vsi, count) (vsi)->ifp->if_iqdrops = (count)
#define IXL_SET_OQDROPS(vsi, odrops) (vsi)->ifp->if_snd.ifq_drops = (odrops)
#define IXL_SET_NOPROTO(vsi, count) (vsi)->noproto = (count)
#endif
/* For stats sysctl naming */
#define IXL_QUEUE_NAME_LEN 32
#define IXL_DEV_ERR(_dev, _format, ...) \
device_printf(_dev, "%s: " _format " (%s:%d)\n", __func__, ##__VA_ARGS__, __FILE__, __LINE__)
/*
*****************************************************************************
* vendor_info_array
*
* This array contains the list of Subvendor/Subdevice IDs on which the driver
* should load.
*
*****************************************************************************
*/
typedef struct _ixl_vendor_info_t {
unsigned int vendor_id;
unsigned int device_id;
unsigned int subvendor_id;
unsigned int subdevice_id;
unsigned int index;
} ixl_vendor_info_t;
/*
** This struct has multiple uses, multicast
** addresses, vlans, and mac filters all use it.
*/
struct ixl_mac_filter {
SLIST_ENTRY(ixl_mac_filter) next;
u8 macaddr[ETHER_ADDR_LEN];
s16 vlan;
u16 flags;
};
/*
* The Transmit ring control struct
*/
struct tx_ring {
struct ixl_tx_queue *que;
u32 tail;
struct i40e_tx_desc *tx_base;
u64 tx_paddr;
u32 latency;
u32 packets;
u32 me;
/*
* For reporting completed packet status
* in descriptor writeback mode
*/
qidx_t *tx_rsq;
qidx_t tx_rs_cidx;
qidx_t tx_rs_pidx;
qidx_t tx_cidx_processed;
/* Used for Dynamic ITR calculation */
u32 itr;
u32 bytes;
/* Soft Stats */
u64 tx_bytes;
u64 tx_packets;
u64 mss_too_small;
};
/*
* The Receive ring control struct
*/
struct rx_ring {
struct ixl_rx_queue *que;
union i40e_rx_desc *rx_base;
uint64_t rx_paddr;
bool discard;
u32 itr;
u32 latency;
u32 mbuf_sz;
u32 tail;
u32 me;
/* Used for Dynamic ITR calculation */
u32 packets;
u32 bytes;
/* Soft stats */
u64 rx_packets;
u64 rx_bytes;
u64 desc_errs;
};
/*
** Driver queue structs
*/
struct ixl_tx_queue {
struct ixl_vsi *vsi;
struct tx_ring txr;
struct if_irq que_irq;
u32 msix;
/* Stats */
u64 irqs;
u64 tso;
};
struct ixl_rx_queue {
struct ixl_vsi *vsi;
struct rx_ring rxr;
struct if_irq que_irq;
u32 msix; /* This queue's MSIX vector */
/* Stats */
u64 irqs;
};
/*
** Virtual Station Interface
*/
SLIST_HEAD(ixl_ftl_head, ixl_mac_filter);
struct ixl_vsi {
if_ctx_t ctx;
if_softc_ctx_t shared;
struct ifnet *ifp;
device_t dev;
struct i40e_hw *hw;
struct ifmedia *media;
int num_rx_queues;
int num_tx_queues;
void *back;
enum i40e_vsi_type type;
int id;
u32 rx_itr_setting;
u32 tx_itr_setting;
bool enable_head_writeback;
u16 vsi_num;
bool link_active;
u16 seid;
u16 uplink_seid;
u16 downlink_seid;
struct ixl_tx_queue *tx_queues; /* TX queue array */
struct ixl_rx_queue *rx_queues; /* RX queue array */
struct if_irq irq;
u32 link_speed;
/* MAC/VLAN Filter list */
struct ixl_ftl_head ftl;
u16 num_macs;
u64 num_hw_filters;
/* Contains readylist & stat counter id */
struct i40e_aqc_vsi_properties_data info;
u16 num_vlans;
/* Per-VSI stats from hardware */
struct i40e_eth_stats eth_stats;
struct i40e_eth_stats eth_stats_offsets;
bool stat_offsets_loaded;
/* VSI stat counters */
u64 ipackets;
u64 ierrors;
u64 opackets;
u64 oerrors;
u64 ibytes;
u64 obytes;
u64 imcasts;
u64 omcasts;
u64 iqdrops;
u64 oqdrops;
u64 noproto;
/* Misc. */
u64 flags;
/* Stats sysctls for this VSI */
struct sysctl_oid *vsi_node;
struct sysctl_ctx_list sysctl_ctx;
};
/*
** Creates new filter with given MAC address and VLAN ID
*/
static inline struct ixl_mac_filter *
ixl_new_filter(struct ixl_vsi *vsi, const u8 *macaddr, s16 vlan)
{
struct ixl_mac_filter *f;
/* create a new empty filter */
f = malloc(sizeof(struct ixl_mac_filter),
M_DEVBUF, M_NOWAIT | M_ZERO);
if (f) {
SLIST_INSERT_HEAD(&vsi->ftl, f, next);
bcopy(macaddr, f->macaddr, ETHER_ADDR_LEN);
f->vlan = vlan;
f->flags |= (IXL_FILTER_ADD | IXL_FILTER_USED);
}
return (f);
}
/*
** Compare two ethernet addresses
*/
static inline bool
cmp_etheraddr(const u8 *ea1, const u8 *ea2)
{
return (bcmp(ea1, ea2, ETHER_ADDR_LEN) == 0);
}
/*
* Return next largest power of 2, unsigned
*
* Public domain, from Bit Twiddling Hacks
*/
static inline u32
next_power_of_two(u32 n)
{
n--;
n |= n >> 1;
n |= n >> 2;
n |= n >> 4;
n |= n >> 8;
n |= n >> 16;
n++;
/* Next power of two > 0 is 1 */
n += (n == 0);
return (n);
}
/*
* Info for stats sysctls
*/
struct ixl_sysctl_info {
u64 *stat;
char *name;
char *description;
};
extern const uint8_t ixl_bcast_addr[ETHER_ADDR_LEN];
/* Common function prototypes between PF/VF driver */
void ixl_debug_core(device_t dev, u32 enabled_mask, u32 mask, char *fmt, ...);
void ixl_init_tx_ring(struct ixl_vsi *vsi, struct ixl_tx_queue *que);
void ixl_get_default_rss_key(u32 *);
const char * i40e_vc_stat_str(struct i40e_hw *hw,
enum virtchnl_status_code stat_err);
void ixl_init_tx_rsqs(struct ixl_vsi *vsi);
void ixl_init_tx_cidx(struct ixl_vsi *vsi);
u64 ixl_max_vc_speed_to_value(u8 link_speeds);
void ixl_add_vsi_sysctls(device_t dev, struct ixl_vsi *vsi,
struct sysctl_ctx_list *ctx, const char *sysctl_name);
void ixl_add_sysctls_eth_stats(struct sysctl_ctx_list *ctx,
struct sysctl_oid_list *child,
struct i40e_eth_stats *eth_stats);
void ixl_vsi_add_queues_stats(struct ixl_vsi *vsi,
struct sysctl_ctx_list *ctx);
#endif /* _IXL_H_ */