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freebsd-skq/sys/dev/ixl/ixl.h
Krzysztof Galazka 9f99061ef9 ixl(4): Report RX errors as sum of all RX error counters 
HW keeps track of RX errors using several counters, each for
specific type of errors. Report RX errors to OS as sum
of all those counters: CRC errors, illegal bytes, checksum,
length, undersize, fragment, oversize and jabber errors.

There is no HW counter for frames with invalid L3/L4 checksums
so add a SW one.

Also add a "rx_errors" sysctl with a copy of netstat IERRORS
counter value to make it easier accessible from scripts.

Reviewed By:	erj
Tested By:	gowtham.kumar.ks@intel.com
Sponsored By:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D27639
2021-03-02 17:37:04 -08:00

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/******************************************************************************
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,
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 _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 <sys/bitstring.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_VLAN (u16)(1 << 0)
#define IXL_FILTER_MC (u16)(1 << 1)
/* used in the vlan field of the filter when not a vlan */
#define IXL_VLAN_ANY -1
/* Maximum number of MAC/VLAN filters supported by HW */
#define IXL_MAX_VLAN_FILTERS 256
#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
MALLOC_DECLARE(M_IXL);
#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 {
LIST_ENTRY(ixl_mac_filter) ftle;
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;
u64 csum_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
*/
LIST_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;
#define IXL_VLANS_MAP_LEN EVL_VLID_MASK + 1
bitstr_t bit_decl(vlans_map, IXL_VLANS_MAP_LEN);
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;
};
struct ixl_add_maddr_arg {
struct ixl_ftl_head to_add;
struct ixl_vsi *vsi;
};
/*
** Compare two ethernet addresses
*/
static inline bool
ixl_ether_is_equal(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_ */
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