/******************************************************************************
Copyright (c) 2013-2014, 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 <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/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 <machine/smp.h>
#include "i40e_type.h"
#include "i40e_prototype.h"
#ifdef IXL_DEBUG
#include <sys/sbuf.h>
#define MAC_FORMAT "%02x:%02x:%02x:%02x:%02x:%02x"
#define MAC_FORMAT_ARGS(mac_addr) \
(mac_addr)[0], (mac_addr)[1], (mac_addr)[2], (mac_addr)[3], \
(mac_addr)[4], (mac_addr)[5]
#define ON_OFF_STR(is_set) ((is_set) ? "On" : "Off")
#define _DBG_PRINTF(S, ...) printf("%s: " S "\n", __func__, ##__VA_ARGS__)
#define _DEV_DBG_PRINTF(dev, S, ...) device_printf(dev, "%s: " S "\n", __func__, ##__VA_ARGS__)
#define _IF_DBG_PRINTF(ifp, S, ...) if_printf(ifp, "%s: " S "\n", __func__, ##__VA_ARGS__)
/* Defines for printing generic debug information */
#define DPRINTF(...) _DBG_PRINTF(__VA_ARGS__)
#define DDPRINTF(...) _DEV_DBG_PRINTF(__VA_ARGS__)
#define IDPRINTF(...) _IF_DBG_PRINTF(__VA_ARGS__)
/* Defines for printing specific debug information */
#define DEBUG_INIT 1
#define DEBUG_IOCTL 1
#define DEBUG_HW 1
#define INIT_DEBUGOUT(...) if (DEBUG_INIT) _DBG_PRINTF(__VA_ARGS__)
#define INIT_DBG_DEV(...) if (DEBUG_INIT) _DEV_DBG_PRINTF(__VA_ARGS__)
#define INIT_DBG_IF(...) if (DEBUG_INIT) _IF_DBG_PRINTF(__VA_ARGS__)
#define IOCTL_DEBUGOUT(...) if (DEBUG_IOCTL) _DBG_PRINTF(__VA_ARGS__)
#define IOCTL_DBG_IF2(ifp, S, ...) if (DEBUG_IOCTL) \
if_printf(ifp, S "\n", ##__VA_ARGS__)
#define IOCTL_DBG_IF(...) if (DEBUG_IOCTL) _IF_DBG_PRINTF(__VA_ARGS__)
#define HW_DEBUGOUT(...) if (DEBUG_HW) _DBG_PRINTF(__VA_ARGS__)
#else
#define DEBUG_INIT 0
#define DEBUG_IOCTL 0
#define DEBUG_HW 0
#define DPRINTF(...)
#define DDPRINTF(...)
#define IDPRINTF(...)
#define INIT_DEBUGOUT(...)
#define INIT_DBG_DEV(...)
#define INIT_DBG_IF(...)
#define IOCTL_DEBUGOUT(...)
#define IOCTL_DBG_IF2(...)
#define IOCTL_DBG_IF(...)
#define HW_DEBUGOUT(...)
#endif
/* 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. Each descriptor is 16
* or 32 bytes (configurable in FVL)
*/
#define DEFAULT_RING 1024
#define PERFORM_RING 2048
#define MAX_RING 4096
#define MIN_RING 32
/*
** Default number of entries in Tx queue buf_ring.
*/
#define SMALL_TXBRSZ 4096
/* This may require mbuf cluster tuning */
#define DEFAULT_TXBRSZ (SMALL_TXBRSZ * SMALL_TXBRSZ)
/* Alignment for rings */
#define DBA_ALIGN 128
/*
* This parameter controls the maximum no of times the driver will loop in
* the isr. Minimum Value = 1
*/
#define MAX_LOOP 10
/*
* 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 IXL_WATCHDOG (10 * hz)
/*
* This parameters control when the driver calls the routine to reclaim
* transmit descriptors.
*/
#define IXL_TX_CLEANUP_THRESHOLD (que->num_desc / 8)
#define IXL_TX_OP_THRESHOLD (que->num_desc / 32)
/* Flow control constants */
#define IXL_FC_PAUSE 0xFFFF
#define IXL_FC_HI 0x20000
#define IXL_FC_LO 0x10000
#define MAX_MULTICAST_ADDR 128
#define IXL_BAR 3
#define IXL_ADM_LIMIT 2
#define IXL_TSO_SIZE 65535
#define IXL_TX_BUF_SZ ((u32) 1514)
#define IXL_AQ_BUF_SZ ((u32) 4096)
#define IXL_RX_HDR 128
#define IXL_AQ_LEN 256
#define IXL_AQ_BUFSZ 4096
#define IXL_RX_LIMIT 512
#define IXL_RX_ITR 0
#define IXL_TX_ITR 1
#define IXL_ITR_NONE 3
#define IXL_QUEUE_EOL 0x7FF
#define IXL_MAX_FRAME 0x2600
#define IXL_MAX_TX_SEGS 8
#define IXL_MAX_TSO_SEGS 66
#define IXL_SPARSE_CHAIN 6
#define IXL_QUEUE_HUNG 0x80000000
/* ERJ: hardware can support ~1.5k filters between all functions */
#define IXL_MAX_FILTERS 256
#define IXL_MAX_TX_BUSY 10
#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
*/
#define IXL_MAX_ITR 0x07FF
#define IXL_ITR_100K 0x0005
#define IXL_ITR_20K 0x0019
#define IXL_ITR_8K 0x003E
#define IXL_ITR_4K 0x007A
#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_TX_LOCK(_sc) mtx_lock(&(_sc)->mtx)
#define IXL_TX_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
#define IXL_TX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx)
#define IXL_TX_TRYLOCK(_sc) mtx_trylock(&(_sc)->mtx)
#define IXL_TX_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->mtx, MA_OWNED)
#define IXL_RX_LOCK(_sc) mtx_lock(&(_sc)->mtx)
#define IXL_RX_UNLOCK(_sc) mtx_unlock(&(_sc)->mtx)
#define IXL_RX_LOCK_DESTROY(_sc) mtx_destroy(&(_sc)->mtx)
#if __FreeBSD_version >= 1100000
#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)->iqdrops = (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
/*
*****************************************************************************
* 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;
struct ixl_tx_buf {
u32 eop_index;
struct mbuf *m_head;
bus_dmamap_t map;
bus_dma_tag_t tag;
};
struct ixl_rx_buf {
struct mbuf *m_head;
struct mbuf *m_pack;
struct mbuf *fmp;
bus_dmamap_t hmap;
bus_dmamap_t pmap;
};
/*
** 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_queue *que;
struct mtx mtx;
u32 tail;
struct i40e_tx_desc *base;
struct i40e_dma_mem dma;
u16 next_avail;
u16 next_to_clean;
u16 atr_rate;
u16 atr_count;
u16 itr;
u16 latency;
struct ixl_tx_buf *buffers;
volatile u16 avail;
u32 cmd;
bus_dma_tag_t tx_tag;
bus_dma_tag_t tso_tag;
char mtx_name[16];
struct buf_ring *br;
/* Used for Dynamic ITR calculation */
u32 packets;
u32 bytes;
/* Soft Stats */
u64 tx_bytes;
u64 no_desc;
u64 total_packets;
};
/*
* The Receive ring control struct
*/
struct rx_ring {
struct ixl_queue *que;
struct mtx mtx;
union i40e_rx_desc *base;
struct i40e_dma_mem dma;
struct lro_ctrl lro;
bool lro_enabled;
bool hdr_split;
bool discard;
u16 next_refresh;
u16 next_check;
u16 itr;
u16 latency;
char mtx_name[16];
struct ixl_rx_buf *buffers;
u32 mbuf_sz;
u32 tail;
bus_dma_tag_t htag;
bus_dma_tag_t ptag;
/* Used for Dynamic ITR calculation */
u32 packets;
u32 bytes;
/* Soft stats */
u64 split;
u64 rx_packets;
u64 rx_bytes;
u64 discarded;
u64 not_done;
};
/*
** Driver queue struct: this is the interrupt container
** for the associated tx and rx ring pair.
*/
struct ixl_queue {
struct ixl_vsi *vsi;
u32 me;
u32 msix; /* This queue's MSIX vector */
u32 eims; /* This queue's EIMS bit */
struct resource *res;
void *tag;
int num_desc; /* both tx and rx */
int busy;
struct tx_ring txr;
struct rx_ring rxr;
struct task task;
struct task tx_task;
struct taskqueue *tq;
/* Queue stats */
u64 irqs;
u64 tso;
u64 mbuf_defrag_failed;
u64 mbuf_hdr_failed;
u64 mbuf_pkt_failed;
u64 tx_map_avail;
u64 tx_dma_setup;
u64 dropped_pkts;
};
/*
** Virtual Station interface:
** there would be one of these per traffic class/type
** for now just one, and its embedded in the pf
*/
SLIST_HEAD(ixl_ftl_head, ixl_mac_filter);
struct ixl_vsi {
void *back;
struct ifnet *ifp;
struct device *dev;
struct i40e_hw *hw;
struct ifmedia media;
u64 que_mask;
int id;
u16 msix_base; /* station base MSIX vector */
u16 num_queues;
u16 rx_itr_setting;
u16 tx_itr_setting;
struct ixl_queue *queues; /* head of queues */
bool link_active;
u16 seid;
u16 max_frame_size;
u32 link_speed;
bool link_up;
u32 fc; /* local flow ctrl setting */
/* MAC/VLAN Filter list */
struct ixl_ftl_head ftl;
struct i40e_aqc_vsi_properties_data info;
eventhandler_tag vlan_attach;
eventhandler_tag vlan_detach;
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;
/* Driver statistics */
u64 hw_filters_del;
u64 hw_filters_add;
/* Misc. */
u64 active_queues;
u64 flags;
};
/*
** Find the number of unrefreshed RX descriptors
*/
static inline u16
ixl_rx_unrefreshed(struct ixl_queue *que)
{
struct rx_ring *rxr = &que->rxr;
if (rxr->next_check > rxr->next_refresh)
return (rxr->next_check - rxr->next_refresh - 1);
else
return ((que->num_desc + rxr->next_check) -
rxr->next_refresh - 1);
}
/*
** Find the next available unused filter
*/
static inline struct ixl_mac_filter *
ixl_get_filter(struct ixl_vsi *vsi)
{
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);
return (f);
}
/*
** Compare two ethernet addresses
*/
static inline bool
cmp_etheraddr(u8 *ea1, u8 *ea2)
{
bool cmp = FALSE;
if ((ea1[0] == ea2[0]) && (ea1[1] == ea2[1]) &&
(ea1[2] == ea2[2]) && (ea1[3] == ea2[3]) &&
(ea1[4] == ea2[4]) && (ea1[5] == ea2[5]))
cmp = TRUE;
return (cmp);
}
/*
* Info for stats sysctls
*/
struct ixl_sysctl_info {
u64 *stat;
char *name;
char *description;
};
extern int ixl_atr_rate;
/*
** ixl_fw_version_str - format the FW and NVM version strings
*/
static inline char *
ixl_fw_version_str(struct i40e_hw *hw)
{
static char buf[32];
snprintf(buf, sizeof(buf),
"f%d.%d a%d.%d n%02x.%02x e%08x",
hw->aq.fw_maj_ver, hw->aq.fw_min_ver,
hw->aq.api_maj_ver, hw->aq.api_min_ver,
(hw->nvm.version & IXL_NVM_VERSION_HI_MASK) >>
IXL_NVM_VERSION_HI_SHIFT,
(hw->nvm.version & IXL_NVM_VERSION_LO_MASK) >>
IXL_NVM_VERSION_LO_SHIFT,
hw->nvm.eetrack);
return buf;
}
/*********************************************************************
* TXRX Function prototypes
*********************************************************************/
int ixl_allocate_tx_data(struct ixl_queue *);
int ixl_allocate_rx_data(struct ixl_queue *);
void ixl_init_tx_ring(struct ixl_queue *);
int ixl_init_rx_ring(struct ixl_queue *);
bool ixl_rxeof(struct ixl_queue *, int);
bool ixl_txeof(struct ixl_queue *);
int ixl_mq_start(struct ifnet *, struct mbuf *);
int ixl_mq_start_locked(struct ifnet *, struct tx_ring *);
void ixl_deferred_mq_start(void *, int);
void ixl_qflush(struct ifnet *);
void ixl_free_vsi(struct ixl_vsi *);
void ixl_free_que_tx(struct ixl_queue *);
void ixl_free_que_rx(struct ixl_queue *);
#ifdef IXL_FDIR
void ixl_atr(struct ixl_queue *, struct tcphdr *, int);
#endif
#if __FreeBSD_version >= 1100000
uint64_t ixl_get_counter(if_t ifp, ift_counter cnt);
#endif
#endif /* _IXL_H_ */
