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freebsd-dev/sys/dev/ice/ice_flow.h
Eric Joyner 71d104536b ice(4): Introduce new driver for Intel E800 Ethernet controllers 
The ice(4) driver is the driver for the Intel E8xx series Ethernet
controllers; currently with codenames Columbiaville and
Columbia Park.

These new controllers support 100G speeds, as well as introducing
more queues, better virtualization support, and more offload
capabilities. Future work will enable virtual functions (like
in ixl(4)) and the other functionality outlined above.

For full functionality, the kernel should be compiled with
"device ice_ddp" like in the amd64 NOTES file, and/or
ice_ddp_load="YES" should be added to /boot/loader.conf so that
the DDP package file included in this commit can be downloaded
to the adapter. Otherwise, the adapter will fall back to a single
queue mode with limited functionality.

A man page for this driver will be forthcoming.

MFC after:	1 month
Relnotes:	yes
Sponsored by:	Intel Corporation
Differential Revision:	https://reviews.freebsd.org/D21959
2020-05-26 23:35:10 +00:00

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/* SPDX-License-Identifier: BSD-3-Clause */
/* Copyright (c) 2020, 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 _ICE_FLOW_H_
#define _ICE_FLOW_H_
#include "ice_flex_type.h"
#define ICE_IPV4_MAKE_PREFIX_MASK(prefix) ((u32)(~0) << (32 - (prefix)))
#define ICE_FLOW_PROF_ID_INVAL 0xfffffffffffffffful
#define ICE_FLOW_PROF_ID_BYPASS 0
#define ICE_FLOW_PROF_ID_DEFAULT 1
#define ICE_FLOW_ENTRY_HANDLE_INVAL 0
#define ICE_FLOW_VSI_INVAL 0xffff
#define ICE_FLOW_FLD_OFF_INVAL 0xffff
/* Generate flow hash field from flow field type(s) */
#define ICE_FLOW_HASH_IPV4 \
(BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) | \
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA))
#define ICE_FLOW_HASH_IPV6 \
(BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) | \
BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA))
#define ICE_FLOW_HASH_TCP_PORT \
(BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) | \
BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT))
#define ICE_FLOW_HASH_UDP_PORT \
(BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) | \
BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT))
#define ICE_FLOW_HASH_SCTP_PORT \
(BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) | \
BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT))
#define ICE_HASH_INVALID 0
#define ICE_HASH_TCP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_TCP_PORT)
#define ICE_HASH_TCP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_TCP_PORT)
#define ICE_HASH_UDP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_UDP_PORT)
#define ICE_HASH_UDP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_UDP_PORT)
#define ICE_HASH_SCTP_IPV4 (ICE_FLOW_HASH_IPV4 | ICE_FLOW_HASH_SCTP_PORT)
#define ICE_HASH_SCTP_IPV6 (ICE_FLOW_HASH_IPV6 | ICE_FLOW_HASH_SCTP_PORT)
/* Protocol header fields within a packet segment. A segment consists of one or
* more protocol headers that make up a logical group of protocol headers. Each
* logical group of protocol headers encapsulates or is encapsulated using/by
* tunneling or encapsulation protocols for network virtualization such as GRE,
* VxLAN, etc.
*/
enum ice_flow_seg_hdr {
ICE_FLOW_SEG_HDR_NONE = 0x00000000,
ICE_FLOW_SEG_HDR_ETH = 0x00000001,
ICE_FLOW_SEG_HDR_VLAN = 0x00000002,
ICE_FLOW_SEG_HDR_IPV4 = 0x00000004,
ICE_FLOW_SEG_HDR_IPV6 = 0x00000008,
ICE_FLOW_SEG_HDR_ARP = 0x00000010,
ICE_FLOW_SEG_HDR_ICMP = 0x00000020,
ICE_FLOW_SEG_HDR_TCP = 0x00000040,
ICE_FLOW_SEG_HDR_UDP = 0x00000080,
ICE_FLOW_SEG_HDR_SCTP = 0x00000100,
ICE_FLOW_SEG_HDR_GRE = 0x00000200,
};
enum ice_flow_field {
/* L2 */
ICE_FLOW_FIELD_IDX_ETH_DA,
ICE_FLOW_FIELD_IDX_ETH_SA,
ICE_FLOW_FIELD_IDX_S_VLAN,
ICE_FLOW_FIELD_IDX_C_VLAN,
ICE_FLOW_FIELD_IDX_ETH_TYPE,
/* L3 */
ICE_FLOW_FIELD_IDX_IPV4_DSCP,
ICE_FLOW_FIELD_IDX_IPV6_DSCP,
ICE_FLOW_FIELD_IDX_IPV4_TTL,
ICE_FLOW_FIELD_IDX_IPV4_PROT,
ICE_FLOW_FIELD_IDX_IPV6_TTL,
ICE_FLOW_FIELD_IDX_IPV6_PROT,
ICE_FLOW_FIELD_IDX_IPV4_SA,
ICE_FLOW_FIELD_IDX_IPV4_DA,
ICE_FLOW_FIELD_IDX_IPV6_SA,
ICE_FLOW_FIELD_IDX_IPV6_DA,
/* L4 */
ICE_FLOW_FIELD_IDX_TCP_SRC_PORT,
ICE_FLOW_FIELD_IDX_TCP_DST_PORT,
ICE_FLOW_FIELD_IDX_UDP_SRC_PORT,
ICE_FLOW_FIELD_IDX_UDP_DST_PORT,
ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT,
ICE_FLOW_FIELD_IDX_SCTP_DST_PORT,
ICE_FLOW_FIELD_IDX_TCP_FLAGS,
/* ARP */
ICE_FLOW_FIELD_IDX_ARP_SIP,
ICE_FLOW_FIELD_IDX_ARP_DIP,
ICE_FLOW_FIELD_IDX_ARP_SHA,
ICE_FLOW_FIELD_IDX_ARP_DHA,
ICE_FLOW_FIELD_IDX_ARP_OP,
/* ICMP */
ICE_FLOW_FIELD_IDX_ICMP_TYPE,
ICE_FLOW_FIELD_IDX_ICMP_CODE,
/* GRE */
ICE_FLOW_FIELD_IDX_GRE_KEYID,
/* The total number of enums must not exceed 64 */
ICE_FLOW_FIELD_IDX_MAX
};
/* Flow headers and fields for AVF support */
enum ice_flow_avf_hdr_field {
/* Values 0 - 28 are reserved for future use */
ICE_AVF_FLOW_FIELD_INVALID = 0,
ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP = 29,
ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP,
ICE_AVF_FLOW_FIELD_IPV4_UDP,
ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK,
ICE_AVF_FLOW_FIELD_IPV4_TCP,
ICE_AVF_FLOW_FIELD_IPV4_SCTP,
ICE_AVF_FLOW_FIELD_IPV4_OTHER,
ICE_AVF_FLOW_FIELD_FRAG_IPV4,
/* Values 37-38 are reserved */
ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP = 39,
ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP,
ICE_AVF_FLOW_FIELD_IPV6_UDP,
ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK,
ICE_AVF_FLOW_FIELD_IPV6_TCP,
ICE_AVF_FLOW_FIELD_IPV6_SCTP,
ICE_AVF_FLOW_FIELD_IPV6_OTHER,
ICE_AVF_FLOW_FIELD_FRAG_IPV6,
ICE_AVF_FLOW_FIELD_RSVD47,
ICE_AVF_FLOW_FIELD_FCOE_OX,
ICE_AVF_FLOW_FIELD_FCOE_RX,
ICE_AVF_FLOW_FIELD_FCOE_OTHER,
/* Values 51-62 are reserved */
ICE_AVF_FLOW_FIELD_L2_PAYLOAD = 63,
ICE_AVF_FLOW_FIELD_MAX
};
/* Supported RSS offloads This macro is defined to support
* VIRTCHNL_OP_GET_RSS_HENA_CAPS ops. PF driver sends the RSS hardware
* capabilities to the caller of this ops.
*/
#define ICE_DEFAULT_RSS_HENA ( \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP))
enum ice_flow_dir {
ICE_FLOW_DIR_UNDEFINED = 0,
ICE_FLOW_TX = 0x01,
ICE_FLOW_RX = 0x02,
ICE_FLOW_TX_RX = ICE_FLOW_RX | ICE_FLOW_TX
};
enum ice_flow_priority {
ICE_FLOW_PRIO_LOW,
ICE_FLOW_PRIO_NORMAL,
ICE_FLOW_PRIO_HIGH
};
#define ICE_FLOW_SEG_MAX 2
#define ICE_FLOW_SEG_RAW_FLD_MAX 2
#define ICE_FLOW_PROFILE_MAX 1024
#define ICE_FLOW_SW_FIELD_VECTOR_MAX 48
#define ICE_FLOW_ACL_FIELD_VECTOR_MAX 32
#define ICE_FLOW_FV_EXTRACT_SZ 2
#define ICE_FLOW_SET_HDRS(seg, val) ((seg)->hdrs |= (u32)(val))
struct ice_flow_seg_xtrct {
u8 prot_id; /* Protocol ID of extracted header field */
u16 off; /* Starting offset of the field in header in bytes */
u8 idx; /* Index of FV entry used */
u8 disp; /* Displacement of field in bits fr. FV entry's start */
};
enum ice_flow_fld_match_type {
ICE_FLOW_FLD_TYPE_REG, /* Value, mask */
ICE_FLOW_FLD_TYPE_RANGE, /* Value, mask, last (upper bound) */
ICE_FLOW_FLD_TYPE_PREFIX, /* IP address, prefix, size of prefix */
ICE_FLOW_FLD_TYPE_SIZE, /* Value, mask, size of match */
};
struct ice_flow_fld_loc {
/* Describe offsets of field information relative to the beginning of
* input buffer provided when adding flow entries.
*/
u16 val; /* Offset where the value is located */
u16 mask; /* Offset where the mask/prefix value is located */
u16 last; /* Length or offset where the upper value is located */
};
struct ice_flow_fld_info {
enum ice_flow_fld_match_type type;
/* Location where to retrieve data from an input buffer */
struct ice_flow_fld_loc src;
/* Location where to put the data into the final entry buffer */
struct ice_flow_fld_loc entry;
struct ice_flow_seg_xtrct xtrct;
};
struct ice_flow_seg_fld_raw {
struct ice_flow_fld_info info;
u16 off; /* Offset from the start of the segment */
};
struct ice_flow_seg_info {
u32 hdrs; /* Bitmask indicating protocol headers present */
u64 match; /* Bitmask indicating header fields to be matched */
u64 range; /* Bitmask indicating header fields matched as ranges */
struct ice_flow_fld_info fields[ICE_FLOW_FIELD_IDX_MAX];
u8 raws_cnt; /* Number of raw fields to be matched */
struct ice_flow_seg_fld_raw raws[ICE_FLOW_SEG_RAW_FLD_MAX];
};
/* This structure describes a flow entry, and is tracked only in this file */
struct ice_flow_entry {
struct LIST_ENTRY_TYPE l_entry;
u64 id;
struct ice_flow_prof *prof;
/* Action list */
struct ice_flow_action *acts;
/* Flow entry's content */
void *entry;
enum ice_flow_priority priority;
u16 vsi_handle;
u16 entry_sz;
u8 acts_cnt;
};
#define ICE_FLOW_ENTRY_HNDL(e) ((u64)e)
#define ICE_FLOW_ENTRY_PTR(h) ((struct ice_flow_entry *)(h))
struct ice_flow_prof {
struct LIST_ENTRY_TYPE l_entry;
u64 id;
enum ice_flow_dir dir;
u8 segs_cnt;
u8 acts_cnt;
/* Keep track of flow entries associated with this flow profile */
struct ice_lock entries_lock;
struct LIST_HEAD_TYPE entries;
struct ice_flow_seg_info segs[ICE_FLOW_SEG_MAX];
/* software VSI handles referenced by this flow profile */
ice_declare_bitmap(vsis, ICE_MAX_VSI);
union {
/* struct sw_recipe */
/* struct fd */
u32 data;
} cfg;
/* Default actions */
struct ice_flow_action *acts;
};
struct ice_rss_cfg {
struct LIST_ENTRY_TYPE l_entry;
/* bitmap of VSIs added to the RSS entry */
ice_declare_bitmap(vsis, ICE_MAX_VSI);
u64 hashed_flds;
u32 packet_hdr;
};
enum ice_flow_action_type {
ICE_FLOW_ACT_NOP,
ICE_FLOW_ACT_ALLOW,
ICE_FLOW_ACT_DROP,
ICE_FLOW_ACT_CNTR_PKT,
ICE_FLOW_ACT_FWD_VSI,
ICE_FLOW_ACT_FWD_VSI_LIST, /* Should be abstracted away */
ICE_FLOW_ACT_FWD_QUEUE, /* Can Queues be abstracted away? */
ICE_FLOW_ACT_FWD_QUEUE_GROUP, /* Can Queues be abstracted away? */
ICE_FLOW_ACT_PUSH,
ICE_FLOW_ACT_POP,
ICE_FLOW_ACT_MODIFY,
ICE_FLOW_ACT_CNTR_BYTES,
ICE_FLOW_ACT_CNTR_PKT_BYTES,
ICE_FLOW_ACT_GENERIC_0,
ICE_FLOW_ACT_GENERIC_1,
ICE_FLOW_ACT_GENERIC_2,
ICE_FLOW_ACT_GENERIC_3,
ICE_FLOW_ACT_GENERIC_4,
ICE_FLOW_ACT_RPT_FLOW_ID,
ICE_FLOW_ACT_BUILD_PROF_IDX,
};
struct ice_flow_action {
enum ice_flow_action_type type;
union {
u32 dummy;
} data;
};
u64
ice_flow_find_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
struct ice_flow_seg_info *segs, u8 segs_cnt);
enum ice_status
ice_flow_add_prof(struct ice_hw *hw, enum ice_block blk, enum ice_flow_dir dir,
u64 prof_id, struct ice_flow_seg_info *segs, u8 segs_cnt,
struct ice_flow_action *acts, u8 acts_cnt,
struct ice_flow_prof **prof);
enum ice_status
ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id);
enum ice_status
ice_flow_assoc_vsig_vsi(struct ice_hw *hw, enum ice_block blk, u16 vsi_handle,
u16 vsig);
enum ice_status
ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
u8 *hw_prof);
u64 ice_flow_find_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_id);
enum ice_status
ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
u64 entry_id, u16 vsi, enum ice_flow_priority prio,
void *data, struct ice_flow_action *acts, u8 acts_cnt,
u64 *entry_h);
enum ice_status ice_flow_rem_entry(struct ice_hw *hw, enum ice_block blk,
u64 entry_h);
void
ice_flow_set_fld(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
u16 val_loc, u16 mask_loc, u16 last_loc, bool range);
void
ice_flow_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
u16 val_loc, u16 prefix_loc, u8 prefix_sz);
void
ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len,
u16 val_loc, u16 mask_loc);
void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle);
enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle);
enum ice_status
ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds);
enum ice_status ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle);
enum ice_status
ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs);
enum ice_status
ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs);
u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs);
#endif /* _ICE_FLOW_H_ */
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