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linux/drivers/net/ethernet/intel/ice/ice_flow.c
Kiran Patil 40319796b7 ice: Add flow director support for channel mode 
Add support to enable flow-director filter when multiple TCs are
configured. Flow director filter can be configured using ethtool
(--config-ntuple option). When multiple TCs are configured, each
TC is mapped to an unique HW VSI. So VSI corresponding to queue
used in filter is identified and flow director context is updated
with correct VSI while configuring ntuple filter in HW.

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-30 13:16:07 +00:00

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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2019, Intel Corporation. */
#include "ice_common.h"
#include "ice_flow.h"
/* Describe properties of a protocol header field */
struct ice_flow_field_info {
enum ice_flow_seg_hdr hdr;
s16 off; /* Offset from start of a protocol header, in bits */
u16 size; /* Size of fields in bits */
u16 mask; /* 16-bit mask for field */
};
#define ICE_FLOW_FLD_INFO(_hdr, _offset_bytes, _size_bytes) { \
.hdr = _hdr, \
.off = (_offset_bytes) * BITS_PER_BYTE, \
.size = (_size_bytes) * BITS_PER_BYTE, \
.mask = 0, \
}
#define ICE_FLOW_FLD_INFO_MSK(_hdr, _offset_bytes, _size_bytes, _mask) { \
.hdr = _hdr, \
.off = (_offset_bytes) * BITS_PER_BYTE, \
.size = (_size_bytes) * BITS_PER_BYTE, \
.mask = _mask, \
}
/* Table containing properties of supported protocol header fields */
static const
struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
/* Ether */
/* ICE_FLOW_FIELD_IDX_ETH_DA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, ETH_ALEN),
/* ICE_FLOW_FIELD_IDX_ETH_SA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, ETH_ALEN, ETH_ALEN),
/* ICE_FLOW_FIELD_IDX_S_VLAN */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 12, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_C_VLAN */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_VLAN, 14, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_ETH_TYPE */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ETH, 0, sizeof(__be16)),
/* IPv4 / IPv6 */
/* ICE_FLOW_FIELD_IDX_IPV4_DSCP */
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV4, 0, 1, 0x00fc),
/* ICE_FLOW_FIELD_IDX_IPV6_DSCP */
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_IPV6, 0, 1, 0x0ff0),
/* ICE_FLOW_FIELD_IDX_IPV4_TTL */
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0xff00),
/* ICE_FLOW_FIELD_IDX_IPV4_PROT */
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 8, 1, 0x00ff),
/* ICE_FLOW_FIELD_IDX_IPV6_TTL */
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0x00ff),
/* ICE_FLOW_FIELD_IDX_IPV6_PROT */
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_NONE, 6, 1, 0xff00),
/* ICE_FLOW_FIELD_IDX_IPV4_SA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 12, sizeof(struct in_addr)),
/* ICE_FLOW_FIELD_IDX_IPV4_DA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 16, sizeof(struct in_addr)),
/* ICE_FLOW_FIELD_IDX_IPV6_SA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, sizeof(struct in6_addr)),
/* ICE_FLOW_FIELD_IDX_IPV6_DA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, sizeof(struct in6_addr)),
/* Transport */
/* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 2, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 0, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 2, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 0, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_TCP_FLAGS */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, 1),
/* ARP */
/* ICE_FLOW_FIELD_IDX_ARP_SIP */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, sizeof(struct in_addr)),
/* ICE_FLOW_FIELD_IDX_ARP_DIP */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 24, sizeof(struct in_addr)),
/* ICE_FLOW_FIELD_IDX_ARP_SHA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 8, ETH_ALEN),
/* ICE_FLOW_FIELD_IDX_ARP_DHA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 18, ETH_ALEN),
/* ICE_FLOW_FIELD_IDX_ARP_OP */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 6, sizeof(__be16)),
/* ICMP */
/* ICE_FLOW_FIELD_IDX_ICMP_TYPE */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 0, 1),
/* ICE_FLOW_FIELD_IDX_ICMP_CODE */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ICMP, 1, 1),
/* GRE */
/* ICE_FLOW_FIELD_IDX_GRE_KEYID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GRE, 12,
sizeof_field(struct gre_full_hdr, key)),
/* GTP */
/* ICE_FLOW_FIELD_IDX_GTPC_TEID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPC_TEID, 12, sizeof(__be32)),
/* ICE_FLOW_FIELD_IDX_GTPU_IP_TEID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_IP, 12, sizeof(__be32)),
/* ICE_FLOW_FIELD_IDX_GTPU_EH_TEID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_EH, 12, sizeof(__be32)),
/* ICE_FLOW_FIELD_IDX_GTPU_EH_QFI */
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_EH, 22, sizeof(__be16),
0x3f00),
/* ICE_FLOW_FIELD_IDX_GTPU_UP_TEID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_UP, 12, sizeof(__be32)),
/* ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_DWN, 12, sizeof(__be32)),
/* PPPoE */
/* ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PPPOE, 2, sizeof(__be16)),
/* PFCP */
/* ICE_FLOW_FIELD_IDX_PFCP_SEID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PFCP_SESSION, 12, sizeof(__be64)),
/* L2TPv3 */
/* ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV3, 0, sizeof(__be32)),
/* ESP */
/* ICE_FLOW_FIELD_IDX_ESP_SPI */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ESP, 0, sizeof(__be32)),
/* AH */
/* ICE_FLOW_FIELD_IDX_AH_SPI */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_AH, 4, sizeof(__be32)),
/* NAT_T_ESP */
/* ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NAT_T_ESP, 8, sizeof(__be32)),
};
/* Bitmaps indicating relevant packet types for a particular protocol header
*
* Packet types for packets with an Outer/First/Single MAC header
*/
static const u32 ice_ptypes_mac_ofos[] = {
0xFDC00846, 0xBFBF7F7E, 0xF70001DF, 0xFEFDFDFB,
0x0000077E, 0x00000000, 0x00000000, 0x00000000,
0x00400000, 0x03FFF000, 0x7FFFFFE0, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last MAC VLAN header */
static const u32 ice_ptypes_macvlan_il[] = {
0x00000000, 0xBC000000, 0x000001DF, 0xF0000000,
0x0000077E, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outer/First/Single IPv4 header, does NOT
* include IPv4 other PTYPEs
*/
static const u32 ice_ptypes_ipv4_ofos[] = {
0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
0x00000000, 0x00000155, 0x00000000, 0x00000000,
0x00000000, 0x000FC000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outer/First/Single IPv4 header, includes
* IPv4 other PTYPEs
*/
static const u32 ice_ptypes_ipv4_ofos_all[] = {
0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
0x00000000, 0x00000155, 0x00000000, 0x00000000,
0x00000000, 0x000FC000, 0x83E0F800, 0x00000101,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last IPv4 header */
static const u32 ice_ptypes_ipv4_il[] = {
0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B,
0x0000000E, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x001FF800, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outer/First/Single IPv6 header, does NOT
* include IPv6 other PTYPEs
*/
static const u32 ice_ptypes_ipv6_ofos[] = {
0x00000000, 0x00000000, 0x77000000, 0x10002000,
0x00000000, 0x000002AA, 0x00000000, 0x00000000,
0x00000000, 0x03F00000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outer/First/Single IPv6 header, includes
* IPv6 other PTYPEs
*/
static const u32 ice_ptypes_ipv6_ofos_all[] = {
0x00000000, 0x00000000, 0x77000000, 0x10002000,
0x00000000, 0x000002AA, 0x00000000, 0x00000000,
0x00080F00, 0x03F00000, 0x7C1F0000, 0x00000206,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last IPv6 header */
static const u32 ice_ptypes_ipv6_il[] = {
0x00000000, 0x03B80770, 0x000001DC, 0x0EE00000,
0x00000770, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x7FE00000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outer/First/Single IPv4 header - no L4 */
static const u32 ice_ptypes_ipv4_ofos_no_l4[] = {
0x10C00000, 0x04000800, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outermost/First ARP header */
static const u32 ice_ptypes_arp_of[] = {
0x00000800, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last IPv4 header - no L4 */
static const u32 ice_ptypes_ipv4_il_no_l4[] = {
0x60000000, 0x18043008, 0x80000002, 0x6010c021,
0x00000008, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outer/First/Single IPv6 header - no L4 */
static const u32 ice_ptypes_ipv6_ofos_no_l4[] = {
0x00000000, 0x00000000, 0x43000000, 0x10002000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last IPv6 header - no L4 */
static const u32 ice_ptypes_ipv6_il_no_l4[] = {
0x00000000, 0x02180430, 0x0000010c, 0x086010c0,
0x00000430, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* UDP Packet types for non-tunneled packets or tunneled
* packets with inner UDP.
*/
static const u32 ice_ptypes_udp_il[] = {
0x81000000, 0x20204040, 0x04000010, 0x80810102,
0x00000040, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00410000, 0x90842000, 0x00000007,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last TCP header */
static const u32 ice_ptypes_tcp_il[] = {
0x04000000, 0x80810102, 0x10000040, 0x02040408,
0x00000102, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00820000, 0x21084000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last SCTP header */
static const u32 ice_ptypes_sctp_il[] = {
0x08000000, 0x01020204, 0x20000081, 0x04080810,
0x00000204, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x01040000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outermost/First ICMP header */
static const u32 ice_ptypes_icmp_of[] = {
0x10000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last ICMP header */
static const u32 ice_ptypes_icmp_il[] = {
0x00000000, 0x02040408, 0x40000102, 0x08101020,
0x00000408, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x42108000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Outermost/First GRE header */
static const u32 ice_ptypes_gre_of[] = {
0x00000000, 0xBFBF7800, 0x000001DF, 0xFEFDE000,
0x0000017E, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with an Innermost/Last MAC header */
static const u32 ice_ptypes_mac_il[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for GTPC */
static const u32 ice_ptypes_gtpc[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000180, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for GTPC with TEID */
static const u32 ice_ptypes_gtpc_tid[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000060, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for GTPU */
static const struct ice_ptype_attributes ice_attr_gtpu_eh[] = {
{ ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_PDU_EH },
{ ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_PDU_EH },
};
static const struct ice_ptype_attributes ice_attr_gtpu_down[] = {
{ ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_DOWNLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_DOWNLINK },
};
static const struct ice_ptype_attributes ice_attr_gtpu_up[] = {
{ ICE_MAC_IPV4_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV4_ICMP, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV4_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_FRAG, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_UDP_PAY, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_TCP, ICE_PTYPE_ATTR_GTP_UPLINK },
{ ICE_MAC_IPV6_GTPU_IPV6_ICMPV6, ICE_PTYPE_ATTR_GTP_UPLINK },
};
static const u32 ice_ptypes_gtpu[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x7FFFFE00, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for PPPoE */
static const u32 ice_ptypes_pppoe[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x03ffe000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with PFCP NODE header */
static const u32 ice_ptypes_pfcp_node[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x80000000, 0x00000002,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with PFCP SESSION header */
static const u32 ice_ptypes_pfcp_session[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000005,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for L2TPv3 */
static const u32 ice_ptypes_l2tpv3[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000300,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for ESP */
static const u32 ice_ptypes_esp[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000003, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for AH */
static const u32 ice_ptypes_ah[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x0000000C, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Packet types for packets with NAT_T ESP header */
static const u32 ice_ptypes_nat_t_esp[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000030, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
static const u32 ice_ptypes_mac_non_ip_ofos[] = {
0x00000846, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00400000, 0x03FFF000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
};
/* Manage parameters and info. used during the creation of a flow profile */
struct ice_flow_prof_params {
enum ice_block blk;
u16 entry_length; /* # of bytes formatted entry will require */
u8 es_cnt;
struct ice_flow_prof *prof;
/* For ACL, the es[0] will have the data of ICE_RX_MDID_PKT_FLAGS_15_0
* This will give us the direction flags.
*/
struct ice_fv_word es[ICE_MAX_FV_WORDS];
/* attributes can be used to add attributes to a particular PTYPE */
const struct ice_ptype_attributes *attr;
u16 attr_cnt;
u16 mask[ICE_MAX_FV_WORDS];
DECLARE_BITMAP(ptypes, ICE_FLOW_PTYPE_MAX);
};
#define ICE_FLOW_RSS_HDRS_INNER_MASK \
(ICE_FLOW_SEG_HDR_PPPOE | ICE_FLOW_SEG_HDR_GTPC | \
ICE_FLOW_SEG_HDR_GTPC_TEID | ICE_FLOW_SEG_HDR_GTPU | \
ICE_FLOW_SEG_HDR_PFCP_SESSION | ICE_FLOW_SEG_HDR_L2TPV3 | \
ICE_FLOW_SEG_HDR_ESP | ICE_FLOW_SEG_HDR_AH | \
ICE_FLOW_SEG_HDR_NAT_T_ESP)
#define ICE_FLOW_SEG_HDRS_L3_MASK \
(ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6 | ICE_FLOW_SEG_HDR_ARP)
#define ICE_FLOW_SEG_HDRS_L4_MASK \
(ICE_FLOW_SEG_HDR_ICMP | ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | \
ICE_FLOW_SEG_HDR_SCTP)
/* mask for L4 protocols that are NOT part of IPv4/6 OTHER PTYPE groups */
#define ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER \
(ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP)
/**
* ice_flow_val_hdrs - validates packet segments for valid protocol headers
* @segs: array of one or more packet segments that describe the flow
* @segs_cnt: number of packet segments provided
*/
static int ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt)
{
u8 i;
for (i = 0; i < segs_cnt; i++) {
/* Multiple L3 headers */
if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK &&
!is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK))
return -EINVAL;
/* Multiple L4 headers */
if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK &&
!is_power_of_2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK))
return -EINVAL;
}
return 0;
}
/* Sizes of fixed known protocol headers without header options */
#define ICE_FLOW_PROT_HDR_SZ_MAC 14
#define ICE_FLOW_PROT_HDR_SZ_MAC_VLAN (ICE_FLOW_PROT_HDR_SZ_MAC + 2)
#define ICE_FLOW_PROT_HDR_SZ_IPV4 20
#define ICE_FLOW_PROT_HDR_SZ_IPV6 40
#define ICE_FLOW_PROT_HDR_SZ_ARP 28
#define ICE_FLOW_PROT_HDR_SZ_ICMP 8
#define ICE_FLOW_PROT_HDR_SZ_TCP 20
#define ICE_FLOW_PROT_HDR_SZ_UDP 8
#define ICE_FLOW_PROT_HDR_SZ_SCTP 12
/**
* ice_flow_calc_seg_sz - calculates size of a packet segment based on headers
* @params: information about the flow to be processed
* @seg: index of packet segment whose header size is to be determined
*/
static u16 ice_flow_calc_seg_sz(struct ice_flow_prof_params *params, u8 seg)
{
u16 sz;
/* L2 headers */
sz = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_VLAN) ?
ICE_FLOW_PROT_HDR_SZ_MAC_VLAN : ICE_FLOW_PROT_HDR_SZ_MAC;
/* L3 headers */
if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4)
sz += ICE_FLOW_PROT_HDR_SZ_IPV4;
else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
sz += ICE_FLOW_PROT_HDR_SZ_IPV6;
else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ARP)
sz += ICE_FLOW_PROT_HDR_SZ_ARP;
else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK)
/* An L3 header is required if L4 is specified */
return 0;
/* L4 headers */
if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_ICMP)
sz += ICE_FLOW_PROT_HDR_SZ_ICMP;
else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_TCP)
sz += ICE_FLOW_PROT_HDR_SZ_TCP;
else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_UDP)
sz += ICE_FLOW_PROT_HDR_SZ_UDP;
else if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_SCTP)
sz += ICE_FLOW_PROT_HDR_SZ_SCTP;
return sz;
}
/**
* ice_flow_proc_seg_hdrs - process protocol headers present in pkt segments
* @params: information about the flow to be processed
*
* This function identifies the packet types associated with the protocol
* headers being present in packet segments of the specified flow profile.
*/
static int ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
{
struct ice_flow_prof *prof;
u8 i;
memset(params->ptypes, 0xff, sizeof(params->ptypes));
prof = params->prof;
for (i = 0; i < params->prof->segs_cnt; i++) {
const unsigned long *src;
u32 hdrs;
hdrs = prof->segs[i].hdrs;
if (hdrs & ICE_FLOW_SEG_HDR_ETH) {
src = !i ? (const unsigned long *)ice_ptypes_mac_ofos :
(const unsigned long *)ice_ptypes_mac_il;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
}
if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) {
src = (const unsigned long *)ice_ptypes_macvlan_il;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
}
if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) {
bitmap_and(params->ptypes, params->ptypes,
(const unsigned long *)ice_ptypes_arp_of,
ICE_FLOW_PTYPE_MAX);
}
if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) &&
(hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) {
src = i ? (const unsigned long *)ice_ptypes_ipv4_il :
(const unsigned long *)ice_ptypes_ipv4_ofos_all;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) &&
(hdrs & ICE_FLOW_SEG_HDR_IPV_OTHER)) {
src = i ? (const unsigned long *)ice_ptypes_ipv6_il :
(const unsigned long *)ice_ptypes_ipv6_ofos_all;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if ((hdrs & ICE_FLOW_SEG_HDR_IPV4) &&
!(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) {
src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos_no_l4 :
(const unsigned long *)ice_ptypes_ipv4_il_no_l4;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
src = !i ? (const unsigned long *)ice_ptypes_ipv4_ofos :
(const unsigned long *)ice_ptypes_ipv4_il;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if ((hdrs & ICE_FLOW_SEG_HDR_IPV6) &&
!(hdrs & ICE_FLOW_SEG_HDRS_L4_MASK_NO_OTHER)) {
src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos_no_l4 :
(const unsigned long *)ice_ptypes_ipv6_il_no_l4;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) {
src = !i ? (const unsigned long *)ice_ptypes_ipv6_ofos :
(const unsigned long *)ice_ptypes_ipv6_il;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
}
if (hdrs & ICE_FLOW_SEG_HDR_ETH_NON_IP) {
src = (const unsigned long *)ice_ptypes_mac_non_ip_ofos;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_PPPOE) {
src = (const unsigned long *)ice_ptypes_pppoe;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else {
src = (const unsigned long *)ice_ptypes_pppoe;
bitmap_andnot(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
}
if (hdrs & ICE_FLOW_SEG_HDR_UDP) {
src = (const unsigned long *)ice_ptypes_udp_il;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_TCP) {
bitmap_and(params->ptypes, params->ptypes,
(const unsigned long *)ice_ptypes_tcp_il,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) {
src = (const unsigned long *)ice_ptypes_sctp_il;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
}
if (hdrs & ICE_FLOW_SEG_HDR_ICMP) {
src = !i ? (const unsigned long *)ice_ptypes_icmp_of :
(const unsigned long *)ice_ptypes_icmp_il;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_GRE) {
if (!i) {
src = (const unsigned long *)ice_ptypes_gre_of;
bitmap_and(params->ptypes, params->ptypes,
src, ICE_FLOW_PTYPE_MAX);
}
} else if (hdrs & ICE_FLOW_SEG_HDR_GTPC) {
src = (const unsigned long *)ice_ptypes_gtpc;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_GTPC_TEID) {
src = (const unsigned long *)ice_ptypes_gtpc_tid;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_DWN) {
src = (const unsigned long *)ice_ptypes_gtpu;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
/* Attributes for GTP packet with downlink */
params->attr = ice_attr_gtpu_down;
params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_down);
} else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_UP) {
src = (const unsigned long *)ice_ptypes_gtpu;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
/* Attributes for GTP packet with uplink */
params->attr = ice_attr_gtpu_up;
params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_up);
} else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_EH) {
src = (const unsigned long *)ice_ptypes_gtpu;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
/* Attributes for GTP packet with Extension Header */
params->attr = ice_attr_gtpu_eh;
params->attr_cnt = ARRAY_SIZE(ice_attr_gtpu_eh);
} else if (hdrs & ICE_FLOW_SEG_HDR_GTPU_IP) {
src = (const unsigned long *)ice_ptypes_gtpu;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_L2TPV3) {
src = (const unsigned long *)ice_ptypes_l2tpv3;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_ESP) {
src = (const unsigned long *)ice_ptypes_esp;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_AH) {
src = (const unsigned long *)ice_ptypes_ah;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else if (hdrs & ICE_FLOW_SEG_HDR_NAT_T_ESP) {
src = (const unsigned long *)ice_ptypes_nat_t_esp;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
}
if (hdrs & ICE_FLOW_SEG_HDR_PFCP) {
if (hdrs & ICE_FLOW_SEG_HDR_PFCP_NODE)
src = (const unsigned long *)ice_ptypes_pfcp_node;
else
src = (const unsigned long *)ice_ptypes_pfcp_session;
bitmap_and(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
} else {
src = (const unsigned long *)ice_ptypes_pfcp_node;
bitmap_andnot(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
src = (const unsigned long *)ice_ptypes_pfcp_session;
bitmap_andnot(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
}
}
return 0;
}
/**
* ice_flow_xtract_fld - Create an extraction sequence entry for the given field
* @hw: pointer to the HW struct
* @params: information about the flow to be processed
* @seg: packet segment index of the field to be extracted
* @fld: ID of field to be extracted
* @match: bit field of all fields
*
* This function determines the protocol ID, offset, and size of the given
* field. It then allocates one or more extraction sequence entries for the
* given field, and fill the entries with protocol ID and offset information.
*/
static int
ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
u8 seg, enum ice_flow_field fld, u64 match)
{
enum ice_flow_field sib = ICE_FLOW_FIELD_IDX_MAX;
enum ice_prot_id prot_id = ICE_PROT_ID_INVAL;
u8 fv_words = hw->blk[params->blk].es.fvw;
struct ice_flow_fld_info *flds;
u16 cnt, ese_bits, i;
u16 sib_mask = 0;
u16 mask;
u16 off;
flds = params->prof->segs[seg].fields;
switch (fld) {
case ICE_FLOW_FIELD_IDX_ETH_DA:
case ICE_FLOW_FIELD_IDX_ETH_SA:
case ICE_FLOW_FIELD_IDX_S_VLAN:
case ICE_FLOW_FIELD_IDX_C_VLAN:
prot_id = seg == 0 ? ICE_PROT_MAC_OF_OR_S : ICE_PROT_MAC_IL;
break;
case ICE_FLOW_FIELD_IDX_ETH_TYPE:
prot_id = seg == 0 ? ICE_PROT_ETYPE_OL : ICE_PROT_ETYPE_IL;
break;
case ICE_FLOW_FIELD_IDX_IPV4_DSCP:
prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
break;
case ICE_FLOW_FIELD_IDX_IPV6_DSCP:
prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
break;
case ICE_FLOW_FIELD_IDX_IPV4_TTL:
case ICE_FLOW_FIELD_IDX_IPV4_PROT:
prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
/* TTL and PROT share the same extraction seq. entry.
* Each is considered a sibling to the other in terms of sharing
* the same extraction sequence entry.
*/
if (fld == ICE_FLOW_FIELD_IDX_IPV4_TTL)
sib = ICE_FLOW_FIELD_IDX_IPV4_PROT;
else if (fld == ICE_FLOW_FIELD_IDX_IPV4_PROT)
sib = ICE_FLOW_FIELD_IDX_IPV4_TTL;
/* If the sibling field is also included, that field's
* mask needs to be included.
*/
if (match & BIT(sib))
sib_mask = ice_flds_info[sib].mask;
break;
case ICE_FLOW_FIELD_IDX_IPV6_TTL:
case ICE_FLOW_FIELD_IDX_IPV6_PROT:
prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
/* TTL and PROT share the same extraction seq. entry.
* Each is considered a sibling to the other in terms of sharing
* the same extraction sequence entry.
*/
if (fld == ICE_FLOW_FIELD_IDX_IPV6_TTL)
sib = ICE_FLOW_FIELD_IDX_IPV6_PROT;
else if (fld == ICE_FLOW_FIELD_IDX_IPV6_PROT)
sib = ICE_FLOW_FIELD_IDX_IPV6_TTL;
/* If the sibling field is also included, that field's
* mask needs to be included.
*/
if (match & BIT(sib))
sib_mask = ice_flds_info[sib].mask;
break;
case ICE_FLOW_FIELD_IDX_IPV4_SA:
case ICE_FLOW_FIELD_IDX_IPV4_DA:
prot_id = seg == 0 ? ICE_PROT_IPV4_OF_OR_S : ICE_PROT_IPV4_IL;
break;
case ICE_FLOW_FIELD_IDX_IPV6_SA:
case ICE_FLOW_FIELD_IDX_IPV6_DA:
prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S : ICE_PROT_IPV6_IL;
break;
case ICE_FLOW_FIELD_IDX_TCP_SRC_PORT:
case ICE_FLOW_FIELD_IDX_TCP_DST_PORT:
case ICE_FLOW_FIELD_IDX_TCP_FLAGS:
prot_id = ICE_PROT_TCP_IL;
break;
case ICE_FLOW_FIELD_IDX_UDP_SRC_PORT:
case ICE_FLOW_FIELD_IDX_UDP_DST_PORT:
prot_id = ICE_PROT_UDP_IL_OR_S;
break;
case ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT:
case ICE_FLOW_FIELD_IDX_SCTP_DST_PORT:
prot_id = ICE_PROT_SCTP_IL;
break;
case ICE_FLOW_FIELD_IDX_GTPC_TEID:
case ICE_FLOW_FIELD_IDX_GTPU_IP_TEID:
case ICE_FLOW_FIELD_IDX_GTPU_UP_TEID:
case ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID:
case ICE_FLOW_FIELD_IDX_GTPU_EH_TEID:
case ICE_FLOW_FIELD_IDX_GTPU_EH_QFI:
/* GTP is accessed through UDP OF protocol */
prot_id = ICE_PROT_UDP_OF;
break;
case ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID:
prot_id = ICE_PROT_PPPOE;
break;
case ICE_FLOW_FIELD_IDX_PFCP_SEID:
prot_id = ICE_PROT_UDP_IL_OR_S;
break;
case ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID:
prot_id = ICE_PROT_L2TPV3;
break;
case ICE_FLOW_FIELD_IDX_ESP_SPI:
prot_id = ICE_PROT_ESP_F;
break;
case ICE_FLOW_FIELD_IDX_AH_SPI:
prot_id = ICE_PROT_ESP_2;
break;
case ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI:
prot_id = ICE_PROT_UDP_IL_OR_S;
break;
case ICE_FLOW_FIELD_IDX_ARP_SIP:
case ICE_FLOW_FIELD_IDX_ARP_DIP:
case ICE_FLOW_FIELD_IDX_ARP_SHA:
case ICE_FLOW_FIELD_IDX_ARP_DHA:
case ICE_FLOW_FIELD_IDX_ARP_OP:
prot_id = ICE_PROT_ARP_OF;
break;
case ICE_FLOW_FIELD_IDX_ICMP_TYPE:
case ICE_FLOW_FIELD_IDX_ICMP_CODE:
/* ICMP type and code share the same extraction seq. entry */
prot_id = (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) ?
ICE_PROT_ICMP_IL : ICE_PROT_ICMPV6_IL;
sib = fld == ICE_FLOW_FIELD_IDX_ICMP_TYPE ?
ICE_FLOW_FIELD_IDX_ICMP_CODE :
ICE_FLOW_FIELD_IDX_ICMP_TYPE;
break;
case ICE_FLOW_FIELD_IDX_GRE_KEYID:
prot_id = ICE_PROT_GRE_OF;
break;
default:
return -EOPNOTSUPP;
}
/* Each extraction sequence entry is a word in size, and extracts a
* word-aligned offset from a protocol header.
*/
ese_bits = ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE;
flds[fld].xtrct.prot_id = prot_id;
flds[fld].xtrct.off = (ice_flds_info[fld].off / ese_bits) *
ICE_FLOW_FV_EXTRACT_SZ;
flds[fld].xtrct.disp = (u8)(ice_flds_info[fld].off % ese_bits);
flds[fld].xtrct.idx = params->es_cnt;
flds[fld].xtrct.mask = ice_flds_info[fld].mask;
/* Adjust the next field-entry index after accommodating the number of
* entries this field consumes
*/
cnt = DIV_ROUND_UP(flds[fld].xtrct.disp + ice_flds_info[fld].size,
ese_bits);
/* Fill in the extraction sequence entries needed for this field */
off = flds[fld].xtrct.off;
mask = flds[fld].xtrct.mask;
for (i = 0; i < cnt; i++) {
/* Only consume an extraction sequence entry if there is no
* sibling field associated with this field or the sibling entry
* already extracts the word shared with this field.
*/
if (sib == ICE_FLOW_FIELD_IDX_MAX ||
flds[sib].xtrct.prot_id == ICE_PROT_ID_INVAL ||
flds[sib].xtrct.off != off) {
u8 idx;
/* Make sure the number of extraction sequence required
* does not exceed the block's capability
*/
if (params->es_cnt >= fv_words)
return -ENOSPC;
/* some blocks require a reversed field vector layout */
if (hw->blk[params->blk].es.reverse)
idx = fv_words - params->es_cnt - 1;
else
idx = params->es_cnt;
params->es[idx].prot_id = prot_id;
params->es[idx].off = off;
params->mask[idx] = mask | sib_mask;
params->es_cnt++;
}
off += ICE_FLOW_FV_EXTRACT_SZ;
}
return 0;
}
/**
* ice_flow_xtract_raws - Create extract sequence entries for raw bytes
* @hw: pointer to the HW struct
* @params: information about the flow to be processed
* @seg: index of packet segment whose raw fields are to be extracted
*/
static int
ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params,
u8 seg)
{
u16 fv_words;
u16 hdrs_sz;
u8 i;
if (!params->prof->segs[seg].raws_cnt)
return 0;
if (params->prof->segs[seg].raws_cnt >
ARRAY_SIZE(params->prof->segs[seg].raws))
return -ENOSPC;
/* Offsets within the segment headers are not supported */
hdrs_sz = ice_flow_calc_seg_sz(params, seg);
if (!hdrs_sz)
return -EINVAL;
fv_words = hw->blk[params->blk].es.fvw;
for (i = 0; i < params->prof->segs[seg].raws_cnt; i++) {
struct ice_flow_seg_fld_raw *raw;
u16 off, cnt, j;
raw = &params->prof->segs[seg].raws[i];
/* Storing extraction information */
raw->info.xtrct.prot_id = ICE_PROT_MAC_OF_OR_S;
raw->info.xtrct.off = (raw->off / ICE_FLOW_FV_EXTRACT_SZ) *
ICE_FLOW_FV_EXTRACT_SZ;
raw->info.xtrct.disp = (raw->off % ICE_FLOW_FV_EXTRACT_SZ) *
BITS_PER_BYTE;
raw->info.xtrct.idx = params->es_cnt;
/* Determine the number of field vector entries this raw field
* consumes.
*/
cnt = DIV_ROUND_UP(raw->info.xtrct.disp +
(raw->info.src.last * BITS_PER_BYTE),
(ICE_FLOW_FV_EXTRACT_SZ * BITS_PER_BYTE));
off = raw->info.xtrct.off;
for (j = 0; j < cnt; j++) {
u16 idx;
/* Make sure the number of extraction sequence required
* does not exceed the block's capability
*/
if (params->es_cnt >= hw->blk[params->blk].es.count ||
params->es_cnt >= ICE_MAX_FV_WORDS)
return -ENOSPC;
/* some blocks require a reversed field vector layout */
if (hw->blk[params->blk].es.reverse)
idx = fv_words - params->es_cnt - 1;
else
idx = params->es_cnt;
params->es[idx].prot_id = raw->info.xtrct.prot_id;
params->es[idx].off = off;
params->es_cnt++;
off += ICE_FLOW_FV_EXTRACT_SZ;
}
}
return 0;
}
/**
* ice_flow_create_xtrct_seq - Create an extraction sequence for given segments
* @hw: pointer to the HW struct
* @params: information about the flow to be processed
*
* This function iterates through all matched fields in the given segments, and
* creates an extraction sequence for the fields.
*/
static int
ice_flow_create_xtrct_seq(struct ice_hw *hw,
struct ice_flow_prof_params *params)
{
struct ice_flow_prof *prof = params->prof;
int status = 0;
u8 i;
for (i = 0; i < prof->segs_cnt; i++) {
u64 match = params->prof->segs[i].match;
enum ice_flow_field j;
for_each_set_bit(j, (unsigned long *)&match,
ICE_FLOW_FIELD_IDX_MAX) {
status = ice_flow_xtract_fld(hw, params, i, j, match);
if (status)
return status;
clear_bit(j, (unsigned long *)&match);
}
/* Process raw matching bytes */
status = ice_flow_xtract_raws(hw, params, i);
if (status)
return status;
}
return status;
}
/**
* ice_flow_proc_segs - process all packet segments associated with a profile
* @hw: pointer to the HW struct
* @params: information about the flow to be processed
*/
static int
ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params)
{
int status;
status = ice_flow_proc_seg_hdrs(params);
if (status)
return status;
status = ice_flow_create_xtrct_seq(hw, params);
if (status)
return status;
switch (params->blk) {
case ICE_BLK_FD:
case ICE_BLK_RSS:
status = 0;
break;
default:
return -EOPNOTSUPP;
}
return status;
}
#define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001
#define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002
#define ICE_FLOW_FIND_PROF_NOT_CHK_DIR 0x00000004
/**
* ice_flow_find_prof_conds - Find a profile matching headers and conditions
* @hw: pointer to the HW struct
* @blk: classification stage
* @dir: flow direction
* @segs: array of one or more packet segments that describe the flow
* @segs_cnt: number of packet segments provided
* @vsi_handle: software VSI handle to check VSI (ICE_FLOW_FIND_PROF_CHK_VSI)
* @conds: additional conditions to be checked (ICE_FLOW_FIND_PROF_CHK_*)
*/
static struct ice_flow_prof *
ice_flow_find_prof_conds(struct ice_hw *hw, enum ice_block blk,
enum ice_flow_dir dir, struct ice_flow_seg_info *segs,
u8 segs_cnt, u16 vsi_handle, u32 conds)
{
struct ice_flow_prof *p, *prof = NULL;
mutex_lock(&hw->fl_profs_locks[blk]);
list_for_each_entry(p, &hw->fl_profs[blk], l_entry)
if ((p->dir == dir || conds & ICE_FLOW_FIND_PROF_NOT_CHK_DIR) &&
segs_cnt && segs_cnt == p->segs_cnt) {
u8 i;
/* Check for profile-VSI association if specified */
if ((conds & ICE_FLOW_FIND_PROF_CHK_VSI) &&
ice_is_vsi_valid(hw, vsi_handle) &&
!test_bit(vsi_handle, p->vsis))
continue;
/* Protocol headers must be checked. Matched fields are
* checked if specified.
*/
for (i = 0; i < segs_cnt; i++)
if (segs[i].hdrs != p->segs[i].hdrs ||
((conds & ICE_FLOW_FIND_PROF_CHK_FLDS) &&
segs[i].match != p->segs[i].match))
break;
/* A match is found if all segments are matched */
if (i == segs_cnt) {
prof = p;
break;
}
}
mutex_unlock(&hw->fl_profs_locks[blk]);
return prof;
}
/**
* ice_flow_find_prof_id - Look up a profile with given profile ID
* @hw: pointer to the HW struct
* @blk: classification stage
* @prof_id: unique ID to identify this flow profile
*/
static struct ice_flow_prof *
ice_flow_find_prof_id(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
{
struct ice_flow_prof *p;
list_for_each_entry(p, &hw->fl_profs[blk], l_entry)
if (p->id == prof_id)
return p;
return NULL;
}
/**
* ice_dealloc_flow_entry - Deallocate flow entry memory
* @hw: pointer to the HW struct
* @entry: flow entry to be removed
*/
static void
ice_dealloc_flow_entry(struct ice_hw *hw, struct ice_flow_entry *entry)
{
if (!entry)
return;
if (entry->entry)
devm_kfree(ice_hw_to_dev(hw), entry->entry);
devm_kfree(ice_hw_to_dev(hw), entry);
}
/**
* ice_flow_rem_entry_sync - Remove a flow entry
* @hw: pointer to the HW struct
* @blk: classification stage
* @entry: flow entry to be removed
*/
static int
ice_flow_rem_entry_sync(struct ice_hw *hw, enum ice_block __always_unused blk,
struct ice_flow_entry *entry)
{
if (!entry)
return -EINVAL;
list_del(&entry->l_entry);
ice_dealloc_flow_entry(hw, entry);
return 0;
}
/**
* ice_flow_add_prof_sync - Add a flow profile for packet segments and fields
* @hw: pointer to the HW struct
* @blk: classification stage
* @dir: flow direction
* @prof_id: unique ID to identify this flow profile
* @segs: array of one or more packet segments that describe the flow
* @segs_cnt: number of packet segments provided
* @prof: stores the returned flow profile added
*
* Assumption: the caller has acquired the lock to the profile list
*/
static int
ice_flow_add_prof_sync(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_prof **prof)
{
struct ice_flow_prof_params *params;
int status;
u8 i;
if (!prof)
return -EINVAL;
params = kzalloc(sizeof(*params), GFP_KERNEL);
if (!params)
return -ENOMEM;
params->prof = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*params->prof),
GFP_KERNEL);
if (!params->prof) {
status = -ENOMEM;
goto free_params;
}
/* initialize extraction sequence to all invalid (0xff) */
for (i = 0; i < ICE_MAX_FV_WORDS; i++) {
params->es[i].prot_id = ICE_PROT_INVALID;
params->es[i].off = ICE_FV_OFFSET_INVAL;
}
params->blk = blk;
params->prof->id = prof_id;
params->prof->dir = dir;
params->prof->segs_cnt = segs_cnt;
/* Make a copy of the segments that need to be persistent in the flow
* profile instance
*/
for (i = 0; i < segs_cnt; i++)
memcpy(&params->prof->segs[i], &segs[i], sizeof(*segs));
status = ice_flow_proc_segs(hw, params);
if (status) {
ice_debug(hw, ICE_DBG_FLOW, "Error processing a flow's packet segments\n");
goto out;
}
/* Add a HW profile for this flow profile */
status = ice_add_prof(hw, blk, prof_id, (u8 *)params->ptypes,
params->attr, params->attr_cnt, params->es,
params->mask);
if (status) {
ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n");
goto out;
}
INIT_LIST_HEAD(&params->prof->entries);
mutex_init(&params->prof->entries_lock);
*prof = params->prof;
out:
if (status)
devm_kfree(ice_hw_to_dev(hw), params->prof);
free_params:
kfree(params);
return status;
}
/**
* ice_flow_rem_prof_sync - remove a flow profile
* @hw: pointer to the hardware structure
* @blk: classification stage
* @prof: pointer to flow profile to remove
*
* Assumption: the caller has acquired the lock to the profile list
*/
static int
ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk,
struct ice_flow_prof *prof)
{
int status;
/* Remove all remaining flow entries before removing the flow profile */
if (!list_empty(&prof->entries)) {
struct ice_flow_entry *e, *t;
mutex_lock(&prof->entries_lock);
list_for_each_entry_safe(e, t, &prof->entries, l_entry) {
status = ice_flow_rem_entry_sync(hw, blk, e);
if (status)
break;
}
mutex_unlock(&prof->entries_lock);
}
/* Remove all hardware profiles associated with this flow profile */
status = ice_rem_prof(hw, blk, prof->id);
if (!status) {
list_del(&prof->l_entry);
mutex_destroy(&prof->entries_lock);
devm_kfree(ice_hw_to_dev(hw), prof);
}
return status;
}
/**
* ice_flow_assoc_prof - associate a VSI with a flow profile
* @hw: pointer to the hardware structure
* @blk: classification stage
* @prof: pointer to flow profile
* @vsi_handle: software VSI handle
*
* Assumption: the caller has acquired the lock to the profile list
* and the software VSI handle has been validated
*/
static int
ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk,
struct ice_flow_prof *prof, u16 vsi_handle)
{
int status = 0;
if (!test_bit(vsi_handle, prof->vsis)) {
status = ice_add_prof_id_flow(hw, blk,
ice_get_hw_vsi_num(hw,
vsi_handle),
prof->id);
if (!status)
set_bit(vsi_handle, prof->vsis);
else
ice_debug(hw, ICE_DBG_FLOW, "HW profile add failed, %d\n",
status);
}
return status;
}
/**
* ice_flow_disassoc_prof - disassociate a VSI from a flow profile
* @hw: pointer to the hardware structure
* @blk: classification stage
* @prof: pointer to flow profile
* @vsi_handle: software VSI handle
*
* Assumption: the caller has acquired the lock to the profile list
* and the software VSI handle has been validated
*/
static int
ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk,
struct ice_flow_prof *prof, u16 vsi_handle)
{
int status = 0;
if (test_bit(vsi_handle, prof->vsis)) {
status = ice_rem_prof_id_flow(hw, blk,
ice_get_hw_vsi_num(hw,
vsi_handle),
prof->id);
if (!status)
clear_bit(vsi_handle, prof->vsis);
else
ice_debug(hw, ICE_DBG_FLOW, "HW profile remove failed, %d\n",
status);
}
return status;
}
/**
* ice_flow_add_prof - Add a flow profile for packet segments and matched fields
* @hw: pointer to the HW struct
* @blk: classification stage
* @dir: flow direction
* @prof_id: unique ID to identify this flow profile
* @segs: array of one or more packet segments that describe the flow
* @segs_cnt: number of packet segments provided
* @prof: stores the returned flow profile added
*/
int
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_prof **prof)
{
int status;
if (segs_cnt > ICE_FLOW_SEG_MAX)
return -ENOSPC;
if (!segs_cnt)
return -EINVAL;
if (!segs)
return -EINVAL;
status = ice_flow_val_hdrs(segs, segs_cnt);
if (status)
return status;
mutex_lock(&hw->fl_profs_locks[blk]);
status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt,
prof);
if (!status)
list_add(&(*prof)->l_entry, &hw->fl_profs[blk]);
mutex_unlock(&hw->fl_profs_locks[blk]);
return status;
}
/**
* ice_flow_rem_prof - Remove a flow profile and all entries associated with it
* @hw: pointer to the HW struct
* @blk: the block for which the flow profile is to be removed
* @prof_id: unique ID of the flow profile to be removed
*/
int ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
{
struct ice_flow_prof *prof;
int status;
mutex_lock(&hw->fl_profs_locks[blk]);
prof = ice_flow_find_prof_id(hw, blk, prof_id);
if (!prof) {
status = -ENOENT;
goto out;
}
/* prof becomes invalid after the call */
status = ice_flow_rem_prof_sync(hw, blk, prof);
out:
mutex_unlock(&hw->fl_profs_locks[blk]);
return status;
}
/**
* ice_flow_add_entry - Add a flow entry
* @hw: pointer to the HW struct
* @blk: classification stage
* @prof_id: ID of the profile to add a new flow entry to
* @entry_id: unique ID to identify this flow entry
* @vsi_handle: software VSI handle for the flow entry
* @prio: priority of the flow entry
* @data: pointer to a data buffer containing flow entry's match values/masks
* @entry_h: pointer to buffer that receives the new flow entry's handle
*/
int
ice_flow_add_entry(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
u64 entry_id, u16 vsi_handle, enum ice_flow_priority prio,
void *data, u64 *entry_h)
{
struct ice_flow_entry *e = NULL;
struct ice_flow_prof *prof;
int status;
/* No flow entry data is expected for RSS */
if (!entry_h || (!data && blk != ICE_BLK_RSS))
return -EINVAL;
if (!ice_is_vsi_valid(hw, vsi_handle))
return -EINVAL;
mutex_lock(&hw->fl_profs_locks[blk]);
prof = ice_flow_find_prof_id(hw, blk, prof_id);
if (!prof) {
status = -ENOENT;
} else {
/* Allocate memory for the entry being added and associate
* the VSI to the found flow profile
*/
e = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*e), GFP_KERNEL);
if (!e)
status = -ENOMEM;
else
status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
}
mutex_unlock(&hw->fl_profs_locks[blk]);
if (status)
goto out;
e->id = entry_id;
e->vsi_handle = vsi_handle;
e->prof = prof;
e->priority = prio;
switch (blk) {
case ICE_BLK_FD:
case ICE_BLK_RSS:
break;
default:
status = -EOPNOTSUPP;
goto out;
}
mutex_lock(&prof->entries_lock);
list_add(&e->l_entry, &prof->entries);
mutex_unlock(&prof->entries_lock);
*entry_h = ICE_FLOW_ENTRY_HNDL(e);
out:
if (status && e) {
if (e->entry)
devm_kfree(ice_hw_to_dev(hw), e->entry);
devm_kfree(ice_hw_to_dev(hw), e);
}
return status;
}
/**
* ice_flow_rem_entry - Remove a flow entry
* @hw: pointer to the HW struct
* @blk: classification stage
* @entry_h: handle to the flow entry to be removed
*/
int ice_flow_rem_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_h)
{
struct ice_flow_entry *entry;
struct ice_flow_prof *prof;
int status = 0;
if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL)
return -EINVAL;
entry = ICE_FLOW_ENTRY_PTR(entry_h);
/* Retain the pointer to the flow profile as the entry will be freed */
prof = entry->prof;
if (prof) {
mutex_lock(&prof->entries_lock);
status = ice_flow_rem_entry_sync(hw, blk, entry);
mutex_unlock(&prof->entries_lock);
}
return status;
}
/**
* ice_flow_set_fld_ext - specifies locations of field from entry's input buffer
* @seg: packet segment the field being set belongs to
* @fld: field to be set
* @field_type: type of the field
* @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
* entry's input buffer
* @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
* input buffer
* @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
* entry's input buffer
*
* This helper function stores information of a field being matched, including
* the type of the field and the locations of the value to match, the mask, and
* the upper-bound value in the start of the input buffer for a flow entry.
* This function should only be used for fixed-size data structures.
*
* This function also opportunistically determines the protocol headers to be
* present based on the fields being set. Some fields cannot be used alone to
* determine the protocol headers present. Sometimes, fields for particular
* protocol headers are not matched. In those cases, the protocol headers
* must be explicitly set.
*/
static void
ice_flow_set_fld_ext(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
enum ice_flow_fld_match_type field_type, u16 val_loc,
u16 mask_loc, u16 last_loc)
{
u64 bit = BIT_ULL(fld);
seg->match |= bit;
if (field_type == ICE_FLOW_FLD_TYPE_RANGE)
seg->range |= bit;
seg->fields[fld].type = field_type;
seg->fields[fld].src.val = val_loc;
seg->fields[fld].src.mask = mask_loc;
seg->fields[fld].src.last = last_loc;
ICE_FLOW_SET_HDRS(seg, ice_flds_info[fld].hdr);
}
/**
* ice_flow_set_fld - specifies locations of field from entry's input buffer
* @seg: packet segment the field being set belongs to
* @fld: field to be set
* @val_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of the value to match from
* entry's input buffer
* @mask_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of mask value from entry's
* input buffer
* @last_loc: if not ICE_FLOW_FLD_OFF_INVAL, location of last/upper value from
* entry's input buffer
* @range: indicate if field being matched is to be in a range
*
* This function specifies the locations, in the form of byte offsets from the
* start of the input buffer for a flow entry, from where the value to match,
* the mask value, and upper value can be extracted. These locations are then
* stored in the flow profile. When adding a flow entry associated with the
* flow profile, these locations will be used to quickly extract the values and
* create the content of a match entry. This function should only be used for
* fixed-size data structures.
*/
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)
{
enum ice_flow_fld_match_type t = range ?
ICE_FLOW_FLD_TYPE_RANGE : ICE_FLOW_FLD_TYPE_REG;
ice_flow_set_fld_ext(seg, fld, t, val_loc, mask_loc, last_loc);
}
/**
* ice_flow_add_fld_raw - sets locations of a raw field from entry's input buf
* @seg: packet segment the field being set belongs to
* @off: offset of the raw field from the beginning of the segment in bytes
* @len: length of the raw pattern to be matched
* @val_loc: location of the value to match from entry's input buffer
* @mask_loc: location of mask value from entry's input buffer
*
* This function specifies the offset of the raw field to be match from the
* beginning of the specified packet segment, and the locations, in the form of
* byte offsets from the start of the input buffer for a flow entry, from where
* the value to match and the mask value to be extracted. These locations are
* then stored in the flow profile. When adding flow entries to the associated
* flow profile, these locations can be used to quickly extract the values to
* create the content of a match entry. This function should only be used for
* fixed-size data structures.
*/
void
ice_flow_add_fld_raw(struct ice_flow_seg_info *seg, u16 off, u8 len,
u16 val_loc, u16 mask_loc)
{
if (seg->raws_cnt < ICE_FLOW_SEG_RAW_FLD_MAX) {
seg->raws[seg->raws_cnt].off = off;
seg->raws[seg->raws_cnt].info.type = ICE_FLOW_FLD_TYPE_SIZE;
seg->raws[seg->raws_cnt].info.src.val = val_loc;
seg->raws[seg->raws_cnt].info.src.mask = mask_loc;
/* The "last" field is used to store the length of the field */
seg->raws[seg->raws_cnt].info.src.last = len;
}
/* Overflows of "raws" will be handled as an error condition later in
* the flow when this information is processed.
*/
seg->raws_cnt++;
}
/**
* ice_flow_rem_vsi_prof - remove VSI from flow profile
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @prof_id: unique ID to identify this flow profile
*
* This function removes the flow entries associated to the input
* VSI handle and disassociate the VSI from the flow profile.
*/
int ice_flow_rem_vsi_prof(struct ice_hw *hw, u16 vsi_handle, u64 prof_id)
{
struct ice_flow_prof *prof;
int status = 0;
if (!ice_is_vsi_valid(hw, vsi_handle))
return -EINVAL;
/* find flow profile pointer with input package block and profile ID */
prof = ice_flow_find_prof_id(hw, ICE_BLK_FD, prof_id);
if (!prof) {
ice_debug(hw, ICE_DBG_PKG, "Cannot find flow profile id=%llu\n",
prof_id);
return -ENOENT;
}
/* Remove all remaining flow entries before removing the flow profile */
if (!list_empty(&prof->entries)) {
struct ice_flow_entry *e, *t;
mutex_lock(&prof->entries_lock);
list_for_each_entry_safe(e, t, &prof->entries, l_entry) {
if (e->vsi_handle != vsi_handle)
continue;
status = ice_flow_rem_entry_sync(hw, ICE_BLK_FD, e);
if (status)
break;
}
mutex_unlock(&prof->entries_lock);
}
if (status)
return status;
/* disassociate the flow profile from sw VSI handle */
status = ice_flow_disassoc_prof(hw, ICE_BLK_FD, prof, vsi_handle);
if (status)
ice_debug(hw, ICE_DBG_PKG, "ice_flow_disassoc_prof() failed with status=%d\n",
status);
return status;
}
#define ICE_FLOW_RSS_SEG_HDR_L2_MASKS \
(ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN)
#define ICE_FLOW_RSS_SEG_HDR_L3_MASKS \
(ICE_FLOW_SEG_HDR_IPV4 | ICE_FLOW_SEG_HDR_IPV6)
#define ICE_FLOW_RSS_SEG_HDR_L4_MASKS \
(ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_SCTP)
#define ICE_FLOW_RSS_SEG_HDR_VAL_MASKS \
(ICE_FLOW_RSS_SEG_HDR_L2_MASKS | \
ICE_FLOW_RSS_SEG_HDR_L3_MASKS | \
ICE_FLOW_RSS_SEG_HDR_L4_MASKS)
/**
* ice_flow_set_rss_seg_info - setup packet segments for RSS
* @segs: pointer to the flow field segment(s)
* @hash_fields: fields to be hashed on for the segment(s)
* @flow_hdr: protocol header fields within a packet segment
*
* Helper function to extract fields from hash bitmap and use flow
* header value to set flow field segment for further use in flow
* profile entry or removal.
*/
static int
ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields,
u32 flow_hdr)
{
u64 val;
u8 i;
for_each_set_bit(i, (unsigned long *)&hash_fields,
ICE_FLOW_FIELD_IDX_MAX)
ice_flow_set_fld(segs, (enum ice_flow_field)i,
ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
ICE_FLOW_FLD_OFF_INVAL, false);
ICE_FLOW_SET_HDRS(segs, flow_hdr);
if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS &
~ICE_FLOW_RSS_HDRS_INNER_MASK & ~ICE_FLOW_SEG_HDR_IPV_OTHER)
return -EINVAL;
val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS);
if (val && !is_power_of_2(val))
return -EIO;
val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS);
if (val && !is_power_of_2(val))
return -EIO;
return 0;
}
/**
* ice_rem_vsi_rss_list - remove VSI from RSS list
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
*
* Remove the VSI from all RSS configurations in the list.
*/
void ice_rem_vsi_rss_list(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_rss_cfg *r, *tmp;
if (list_empty(&hw->rss_list_head))
return;
mutex_lock(&hw->rss_locks);
list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry)
if (test_and_clear_bit(vsi_handle, r->vsis))
if (bitmap_empty(r->vsis, ICE_MAX_VSI)) {
list_del(&r->l_entry);
devm_kfree(ice_hw_to_dev(hw), r);
}
mutex_unlock(&hw->rss_locks);
}
/**
* ice_rem_vsi_rss_cfg - remove RSS configurations associated with VSI
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
*
* This function will iterate through all flow profiles and disassociate
* the VSI from that profile. If the flow profile has no VSIs it will
* be removed.
*/
int ice_rem_vsi_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
{
const enum ice_block blk = ICE_BLK_RSS;
struct ice_flow_prof *p, *t;
int status = 0;
if (!ice_is_vsi_valid(hw, vsi_handle))
return -EINVAL;
if (list_empty(&hw->fl_profs[blk]))
return 0;
mutex_lock(&hw->rss_locks);
list_for_each_entry_safe(p, t, &hw->fl_profs[blk], l_entry)
if (test_bit(vsi_handle, p->vsis)) {
status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle);
if (status)
break;
if (bitmap_empty(p->vsis, ICE_MAX_VSI)) {
status = ice_flow_rem_prof(hw, blk, p->id);
if (status)
break;
}
}
mutex_unlock(&hw->rss_locks);
return status;
}
/**
* ice_rem_rss_list - remove RSS configuration from list
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @prof: pointer to flow profile
*
* Assumption: lock has already been acquired for RSS list
*/
static void
ice_rem_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
{
struct ice_rss_cfg *r, *tmp;
/* Search for RSS hash fields associated to the VSI that match the
* hash configurations associated to the flow profile. If found
* remove from the RSS entry list of the VSI context and delete entry.
*/
list_for_each_entry_safe(r, tmp, &hw->rss_list_head, l_entry)
if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
clear_bit(vsi_handle, r->vsis);
if (bitmap_empty(r->vsis, ICE_MAX_VSI)) {
list_del(&r->l_entry);
devm_kfree(ice_hw_to_dev(hw), r);
}
return;
}
}
/**
* ice_add_rss_list - add RSS configuration to list
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @prof: pointer to flow profile
*
* Assumption: lock has already been acquired for RSS list
*/
static int
ice_add_rss_list(struct ice_hw *hw, u16 vsi_handle, struct ice_flow_prof *prof)
{
struct ice_rss_cfg *r, *rss_cfg;
list_for_each_entry(r, &hw->rss_list_head, l_entry)
if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
set_bit(vsi_handle, r->vsis);
return 0;
}
rss_cfg = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*rss_cfg),
GFP_KERNEL);
if (!rss_cfg)
return -ENOMEM;
rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match;
rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs;
set_bit(vsi_handle, rss_cfg->vsis);
list_add_tail(&rss_cfg->l_entry, &hw->rss_list_head);
return 0;
}
#define ICE_FLOW_PROF_HASH_S 0
#define ICE_FLOW_PROF_HASH_M (0xFFFFFFFFULL << ICE_FLOW_PROF_HASH_S)
#define ICE_FLOW_PROF_HDR_S 32
#define ICE_FLOW_PROF_HDR_M (0x3FFFFFFFULL << ICE_FLOW_PROF_HDR_S)
#define ICE_FLOW_PROF_ENCAP_S 63
#define ICE_FLOW_PROF_ENCAP_M (BIT_ULL(ICE_FLOW_PROF_ENCAP_S))
#define ICE_RSS_OUTER_HEADERS 1
#define ICE_RSS_INNER_HEADERS 2
/* Flow profile ID format:
* [0:31] - Packet match fields
* [32:62] - Protocol header
* [63] - Encapsulation flag, 0 if non-tunneled, 1 if tunneled
*/
#define ICE_FLOW_GEN_PROFID(hash, hdr, segs_cnt) \
((u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \
(((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M) | \
((u8)((segs_cnt) - 1) ? ICE_FLOW_PROF_ENCAP_M : 0)))
/**
* ice_add_rss_cfg_sync - add an RSS configuration
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
* @addl_hdrs: protocol header fields
* @segs_cnt: packet segment count
*
* Assumption: lock has already been acquired for RSS list
*/
static int
ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs, u8 segs_cnt)
{
const enum ice_block blk = ICE_BLK_RSS;
struct ice_flow_prof *prof = NULL;
struct ice_flow_seg_info *segs;
int status;
if (!segs_cnt || segs_cnt > ICE_FLOW_SEG_MAX)
return -EINVAL;
segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL);
if (!segs)
return -ENOMEM;
/* Construct the packet segment info from the hashed fields */
status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds,
addl_hdrs);
if (status)
goto exit;
/* Search for a flow profile that has matching headers, hash fields
* and has the input VSI associated to it. If found, no further
* operations required and exit.
*/
prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
vsi_handle,
ICE_FLOW_FIND_PROF_CHK_FLDS |
ICE_FLOW_FIND_PROF_CHK_VSI);
if (prof)
goto exit;
/* Check if a flow profile exists with the same protocol headers and
* associated with the input VSI. If so disassociate the VSI from
* this profile. The VSI will be added to a new profile created with
* the protocol header and new hash field configuration.
*/
prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
vsi_handle, ICE_FLOW_FIND_PROF_CHK_VSI);
if (prof) {
status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
if (!status)
ice_rem_rss_list(hw, vsi_handle, prof);
else
goto exit;
/* Remove profile if it has no VSIs associated */
if (bitmap_empty(prof->vsis, ICE_MAX_VSI)) {
status = ice_flow_rem_prof(hw, blk, prof->id);
if (status)
goto exit;
}
}
/* Search for a profile that has same match fields only. If this
* exists then associate the VSI to this profile.
*/
prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
vsi_handle,
ICE_FLOW_FIND_PROF_CHK_FLDS);
if (prof) {
status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
if (!status)
status = ice_add_rss_list(hw, vsi_handle, prof);
goto exit;
}
/* Create a new flow profile with generated profile and packet
* segment information.
*/
status = ice_flow_add_prof(hw, blk, ICE_FLOW_RX,
ICE_FLOW_GEN_PROFID(hashed_flds,
segs[segs_cnt - 1].hdrs,
segs_cnt),
segs, segs_cnt, &prof);
if (status)
goto exit;
status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
/* If association to a new flow profile failed then this profile can
* be removed.
*/
if (status) {
ice_flow_rem_prof(hw, blk, prof->id);
goto exit;
}
status = ice_add_rss_list(hw, vsi_handle, prof);
exit:
kfree(segs);
return status;
}
/**
* ice_add_rss_cfg - add an RSS configuration with specified hashed fields
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @hashed_flds: hash bit fields (ICE_FLOW_HASH_*) to configure
* @addl_hdrs: protocol header fields
*
* This function will generate a flow profile based on fields associated with
* the input fields to hash on, the flow type and use the VSI number to add
* a flow entry to the profile.
*/
int
ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs)
{
int status;
if (hashed_flds == ICE_HASH_INVALID ||
!ice_is_vsi_valid(hw, vsi_handle))
return -EINVAL;
mutex_lock(&hw->rss_locks);
status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
ICE_RSS_OUTER_HEADERS);
if (!status)
status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds,
addl_hdrs, ICE_RSS_INNER_HEADERS);
mutex_unlock(&hw->rss_locks);
return status;
}
/**
* ice_rem_rss_cfg_sync - remove an existing RSS configuration
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
* @addl_hdrs: Protocol header fields within a packet segment
* @segs_cnt: packet segment count
*
* Assumption: lock has already been acquired for RSS list
*/
static int
ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs, u8 segs_cnt)
{
const enum ice_block blk = ICE_BLK_RSS;
struct ice_flow_seg_info *segs;
struct ice_flow_prof *prof;
int status;
segs = kcalloc(segs_cnt, sizeof(*segs), GFP_KERNEL);
if (!segs)
return -ENOMEM;
/* Construct the packet segment info from the hashed fields */
status = ice_flow_set_rss_seg_info(&segs[segs_cnt - 1], hashed_flds,
addl_hdrs);
if (status)
goto out;
prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, segs_cnt,
vsi_handle,
ICE_FLOW_FIND_PROF_CHK_FLDS);
if (!prof) {
status = -ENOENT;
goto out;
}
status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
if (status)
goto out;
/* Remove RSS configuration from VSI context before deleting
* the flow profile.
*/
ice_rem_rss_list(hw, vsi_handle, prof);
if (bitmap_empty(prof->vsis, ICE_MAX_VSI))
status = ice_flow_rem_prof(hw, blk, prof->id);
out:
kfree(segs);
return status;
}
/**
* ice_rem_rss_cfg - remove an existing RSS config with matching hashed fields
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @hashed_flds: Packet hash types (ICE_FLOW_HASH_*) to remove
* @addl_hdrs: Protocol header fields within a packet segment
*
* This function will lookup the flow profile based on the input
* hash field bitmap, iterate through the profile entry list of
* that profile and find entry associated with input VSI to be
* removed. Calls are made to underlying flow s which will APIs
* turn build or update buffers for RSS XLT1 section.
*/
int __maybe_unused
ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs)
{
int status;
if (hashed_flds == ICE_HASH_INVALID ||
!ice_is_vsi_valid(hw, vsi_handle))
return -EINVAL;
mutex_lock(&hw->rss_locks);
status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs,
ICE_RSS_OUTER_HEADERS);
if (!status)
status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds,
addl_hdrs, ICE_RSS_INNER_HEADERS);
mutex_unlock(&hw->rss_locks);
return status;
}
/* Mapping of AVF hash bit fields to an L3-L4 hash combination.
* As the ice_flow_avf_hdr_field represent individual bit shifts in a hash,
* convert its values to their appropriate flow L3, L4 values.
*/
#define ICE_FLOW_AVF_RSS_IPV4_MASKS \
(BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_OTHER) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV4))
#define ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS \
(BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP_SYN_NO_ACK) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_TCP))
#define ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS \
(BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV4_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV4_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_UDP))
#define ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS \
(ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS | \
ICE_FLOW_AVF_RSS_IPV4_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP))
#define ICE_FLOW_AVF_RSS_IPV6_MASKS \
(BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_OTHER) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_FRAG_IPV6))
#define ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS \
(BIT_ULL(ICE_AVF_FLOW_FIELD_UNICAST_IPV6_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_MULTICAST_IPV6_UDP) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_UDP))
#define ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS \
(BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP_SYN_NO_ACK) | \
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_TCP))
#define ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS \
(ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS | ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS | \
ICE_FLOW_AVF_RSS_IPV6_MASKS | BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP))
/**
* ice_add_avf_rss_cfg - add an RSS configuration for AVF driver
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @avf_hash: hash bit fields (ICE_AVF_FLOW_FIELD_*) to configure
*
* This function will take the hash bitmap provided by the AVF driver via a
* message, convert it to ICE-compatible values, and configure RSS flow
* profiles.
*/
int ice_add_avf_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 avf_hash)
{
int status = 0;
u64 hash_flds;
if (avf_hash == ICE_AVF_FLOW_FIELD_INVALID ||
!ice_is_vsi_valid(hw, vsi_handle))
return -EINVAL;
/* Make sure no unsupported bits are specified */
if (avf_hash & ~(ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS |
ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS))
return -EIO;
hash_flds = avf_hash;
/* Always create an L3 RSS configuration for any L4 RSS configuration */
if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS)
hash_flds |= ICE_FLOW_AVF_RSS_IPV4_MASKS;
if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS)
hash_flds |= ICE_FLOW_AVF_RSS_IPV6_MASKS;
/* Create the corresponding RSS configuration for each valid hash bit */
while (hash_flds) {
u64 rss_hash = ICE_HASH_INVALID;
if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV4_MASKS) {
if (hash_flds & ICE_FLOW_AVF_RSS_IPV4_MASKS) {
rss_hash = ICE_FLOW_HASH_IPV4;
hash_flds &= ~ICE_FLOW_AVF_RSS_IPV4_MASKS;
} else if (hash_flds &
ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS) {
rss_hash = ICE_FLOW_HASH_IPV4 |
ICE_FLOW_HASH_TCP_PORT;
hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV4_MASKS;
} else if (hash_flds &
ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS) {
rss_hash = ICE_FLOW_HASH_IPV4 |
ICE_FLOW_HASH_UDP_PORT;
hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV4_MASKS;
} else if (hash_flds &
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP)) {
rss_hash = ICE_FLOW_HASH_IPV4 |
ICE_FLOW_HASH_SCTP_PORT;
hash_flds &=
~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV4_SCTP);
}
} else if (hash_flds & ICE_FLOW_AVF_RSS_ALL_IPV6_MASKS) {
if (hash_flds & ICE_FLOW_AVF_RSS_IPV6_MASKS) {
rss_hash = ICE_FLOW_HASH_IPV6;
hash_flds &= ~ICE_FLOW_AVF_RSS_IPV6_MASKS;
} else if (hash_flds &
ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS) {
rss_hash = ICE_FLOW_HASH_IPV6 |
ICE_FLOW_HASH_TCP_PORT;
hash_flds &= ~ICE_FLOW_AVF_RSS_TCP_IPV6_MASKS;
} else if (hash_flds &
ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS) {
rss_hash = ICE_FLOW_HASH_IPV6 |
ICE_FLOW_HASH_UDP_PORT;
hash_flds &= ~ICE_FLOW_AVF_RSS_UDP_IPV6_MASKS;
} else if (hash_flds &
BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP)) {
rss_hash = ICE_FLOW_HASH_IPV6 |
ICE_FLOW_HASH_SCTP_PORT;
hash_flds &=
~BIT_ULL(ICE_AVF_FLOW_FIELD_IPV6_SCTP);
}
}
if (rss_hash == ICE_HASH_INVALID)
return -EIO;
status = ice_add_rss_cfg(hw, vsi_handle, rss_hash,
ICE_FLOW_SEG_HDR_NONE);
if (status)
break;
}
return status;
}
/**
* ice_replay_rss_cfg - replay RSS configurations associated with VSI
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
*/
int ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_rss_cfg *r;
int status = 0;
if (!ice_is_vsi_valid(hw, vsi_handle))
return -EINVAL;
mutex_lock(&hw->rss_locks);
list_for_each_entry(r, &hw->rss_list_head, l_entry) {
if (test_bit(vsi_handle, r->vsis)) {
status = ice_add_rss_cfg_sync(hw, vsi_handle,
r->hashed_flds,
r->packet_hdr,
ICE_RSS_OUTER_HEADERS);
if (status)
break;
status = ice_add_rss_cfg_sync(hw, vsi_handle,
r->hashed_flds,
r->packet_hdr,
ICE_RSS_INNER_HEADERS);
if (status)
break;
}
}
mutex_unlock(&hw->rss_locks);
return status;
}
/**
* ice_get_rss_cfg - returns hashed fields for the given header types
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
* @hdrs: protocol header type
*
* This function will return the match fields of the first instance of flow
* profile having the given header types and containing input VSI
*/
u64 ice_get_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u32 hdrs)
{
u64 rss_hash = ICE_HASH_INVALID;
struct ice_rss_cfg *r;
/* verify if the protocol header is non zero and VSI is valid */
if (hdrs == ICE_FLOW_SEG_HDR_NONE || !ice_is_vsi_valid(hw, vsi_handle))
return ICE_HASH_INVALID;
mutex_lock(&hw->rss_locks);
list_for_each_entry(r, &hw->rss_list_head, l_entry)
if (test_bit(vsi_handle, r->vsis) &&
r->packet_hdr == hdrs) {
rss_hash = r->hashed_flds;
break;
}
mutex_unlock(&hw->rss_locks);
return rss_hash;
}
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