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numam-dpdk/drivers/net/ice/base/ice_flow.c
Qi Zhang b09dff27e9 net/ice/base: remove unnecessary code 
Remove unnecessary macro and data structure.

Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Qi Zhang <qi.z.zhang@intel.com>
Reviewed-by: Qiming Yang <qiming.yang@intel.com>
Reviewed-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2019-03-29 17:25:31 +01:00

1948 lines
60 KiB
C
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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2001-2019
*/
#include "ice_common.h"
#include "ice_flow.h"
/* Size of known protocol header fields */
#define ICE_FLOW_FLD_SZ_ETH_TYPE 2
#define ICE_FLOW_FLD_SZ_VLAN 2
#define ICE_FLOW_FLD_SZ_IPV4_ADDR 4
#define ICE_FLOW_FLD_SZ_IPV6_ADDR 16
#define ICE_FLOW_FLD_SZ_IP_DSCP 1
#define ICE_FLOW_FLD_SZ_IP_TTL 1
#define ICE_FLOW_FLD_SZ_IP_PROT 1
#define ICE_FLOW_FLD_SZ_PORT 2
#define ICE_FLOW_FLD_SZ_TCP_FLAGS 1
#define ICE_FLOW_FLD_SZ_ICMP_TYPE 1
#define ICE_FLOW_FLD_SZ_ICMP_CODE 1
#define ICE_FLOW_FLD_SZ_ARP_OPER 2
#define ICE_FLOW_FLD_SZ_GRE_KEYID 4
/* Protocol header fields are extracted at the word boundaries as word-sized
* values. Specify the displacement value of some non-word-aligned fields needed
* to compute the offset of words containing the fields in the corresponding
* protocol headers. Displacement values are expressed in number of bits.
*/
#define ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP (-4)
#define ICE_FLOW_FLD_IPV6_TTL_PROT_DISP ((-2) * 8)
#define ICE_FLOW_FLD_IPV6_TTL_TTL_DISP ((-1) * 8)
/* 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 */
};
/* 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_SEG_HDR_ETH, 0, ETH_ALEN * 8 },
/* ICE_FLOW_FIELD_IDX_ETH_SA */
{ ICE_FLOW_SEG_HDR_ETH, ETH_ALEN * 8, ETH_ALEN * 8 },
/* ICE_FLOW_FIELD_IDX_S_VLAN */
{ ICE_FLOW_SEG_HDR_VLAN, 12 * 8, ICE_FLOW_FLD_SZ_VLAN * 8 },
/* ICE_FLOW_FIELD_IDX_C_VLAN */
{ ICE_FLOW_SEG_HDR_VLAN, 14 * 8, ICE_FLOW_FLD_SZ_VLAN * 8 },
/* ICE_FLOW_FIELD_IDX_ETH_TYPE */
{ ICE_FLOW_SEG_HDR_ETH, 12 * 8, ICE_FLOW_FLD_SZ_ETH_TYPE * 8 },
/* IPv4 */
/* ICE_FLOW_FIELD_IDX_IP_DSCP */
{ ICE_FLOW_SEG_HDR_IPV4, 1 * 8, 1 * 8 },
/* ICE_FLOW_FIELD_IDX_IP_TTL */
{ ICE_FLOW_SEG_HDR_NONE, 8 * 8, 1 * 8 },
/* ICE_FLOW_FIELD_IDX_IP_PROT */
{ ICE_FLOW_SEG_HDR_NONE, 9 * 8, ICE_FLOW_FLD_SZ_IP_PROT * 8 },
/* ICE_FLOW_FIELD_IDX_IPV4_SA */
{ ICE_FLOW_SEG_HDR_IPV4, 12 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 },
/* ICE_FLOW_FIELD_IDX_IPV4_DA */
{ ICE_FLOW_SEG_HDR_IPV4, 16 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 },
/* IPv6 */
/* ICE_FLOW_FIELD_IDX_IPV6_SA */
{ ICE_FLOW_SEG_HDR_IPV6, 8 * 8, ICE_FLOW_FLD_SZ_IPV6_ADDR * 8 },
/* ICE_FLOW_FIELD_IDX_IPV6_DA */
{ ICE_FLOW_SEG_HDR_IPV6, 24 * 8, ICE_FLOW_FLD_SZ_IPV6_ADDR * 8 },
/* Transport */
/* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
{ ICE_FLOW_SEG_HDR_TCP, 0 * 8, ICE_FLOW_FLD_SZ_PORT * 8 },
/* ICE_FLOW_FIELD_IDX_TCP_DST_PORT */
{ ICE_FLOW_SEG_HDR_TCP, 2 * 8, ICE_FLOW_FLD_SZ_PORT * 8 },
/* ICE_FLOW_FIELD_IDX_UDP_SRC_PORT */
{ ICE_FLOW_SEG_HDR_UDP, 0 * 8, ICE_FLOW_FLD_SZ_PORT * 8 },
/* ICE_FLOW_FIELD_IDX_UDP_DST_PORT */
{ ICE_FLOW_SEG_HDR_UDP, 2 * 8, ICE_FLOW_FLD_SZ_PORT * 8 },
/* ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT */
{ ICE_FLOW_SEG_HDR_SCTP, 0 * 8, ICE_FLOW_FLD_SZ_PORT * 8 },
/* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */
{ ICE_FLOW_SEG_HDR_SCTP, 2 * 8, ICE_FLOW_FLD_SZ_PORT * 8 },
/* ICE_FLOW_FIELD_IDX_TCP_FLAGS */
{ ICE_FLOW_SEG_HDR_TCP, 13 * 8, ICE_FLOW_FLD_SZ_TCP_FLAGS * 8 },
/* ARP */
/* ICE_FLOW_FIELD_IDX_ARP_SIP */
{ ICE_FLOW_SEG_HDR_ARP, 14 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 },
/* ICE_FLOW_FIELD_IDX_ARP_DIP */
{ ICE_FLOW_SEG_HDR_ARP, 24 * 8, ICE_FLOW_FLD_SZ_IPV4_ADDR * 8 },
/* ICE_FLOW_FIELD_IDX_ARP_SHA */
{ ICE_FLOW_SEG_HDR_ARP, 8 * 8, ETH_ALEN * 8 },
/* ICE_FLOW_FIELD_IDX_ARP_DHA */
{ ICE_FLOW_SEG_HDR_ARP, 18 * 8, ETH_ALEN * 8 },
/* ICE_FLOW_FIELD_IDX_ARP_OP */
{ ICE_FLOW_SEG_HDR_ARP, 6 * 8, ICE_FLOW_FLD_SZ_ARP_OPER * 8 },
/* ICMP */
/* ICE_FLOW_FIELD_IDX_ICMP_TYPE */
{ ICE_FLOW_SEG_HDR_ICMP, 0 * 8, ICE_FLOW_FLD_SZ_ICMP_TYPE * 8 },
/* ICE_FLOW_FIELD_IDX_ICMP_CODE */
{ ICE_FLOW_SEG_HDR_ICMP, 1 * 8, ICE_FLOW_FLD_SZ_ICMP_CODE * 8 },
/* GRE */
/* ICE_FLOW_FIELD_IDX_GRE_KEYID */
{ ICE_FLOW_SEG_HDR_GRE, 12 * 8, ICE_FLOW_FLD_SZ_GRE_KEYID * 8 },
};
/* 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[] = {
0xFDC00CC6, 0xBFBF7F7E, 0xF7EFDFDF, 0xFEFDFDFB,
0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
0x000B0F0F, 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 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 */
static const u32 ice_ptypes_ipv4_ofos[] = {
0xFDC00000, 0xBFBF7F7E, 0x00EFDFDF, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x0003000F, 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 */
static const u32 ice_ptypes_ipv4_il[] = {
0xE0000000, 0xB807700E, 0x8001DC03, 0xE01DC03B,
0x0007700E, 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 */
static const u32 ice_ptypes_ipv6_ofos[] = {
0x00000000, 0x00000000, 0xF7000000, 0xFEFDFDFB,
0x03BF7F7E, 0x00000000, 0x00000000, 0x00000000,
0x00080F00, 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 */
static const u32 ice_ptypes_ipv6_il[] = {
0x00000000, 0x03B80770, 0x00EE01DC, 0x0EE00000,
0x03B80770, 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 Outermost/First UDP header */
static const u32 ice_ptypes_udp_of[] = {
0x81000000, 0x00000000, 0x04000000, 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 UDP header */
static const u32 ice_ptypes_udp_il[] = {
0x80000000, 0x20204040, 0x00081010, 0x80810102,
0x00204040, 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 TCP header */
static const u32 ice_ptypes_tcp_il[] = {
0x04000000, 0x80810102, 0x10204040, 0x42040408,
0x00810002, 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 SCTP header */
static const u32 ice_ptypes_sctp_il[] = {
0x08000000, 0x01020204, 0x20408081, 0x04080810,
0x01020204, 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 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, 0x40810102, 0x08101020,
0x02040408, 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 GRE header */
static const u32 ice_ptypes_gre_of[] = {
0x00000000, 0xBFBF7800, 0x00EFDFDF, 0xFEFDE000,
0x03BF7F7E, 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, 0x00EFDE00, 0x00000000,
0x03BF7800, 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,
};
/* Manage parameters and info. used during the creation of a flow profile */
struct ice_flow_prof_params {
enum ice_block blk;
struct ice_flow_prof *prof;
u16 entry_length; /* # of bytes formatted entry will require */
u8 es_cnt;
/* 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];
ice_declare_bitmap(ptypes, ICE_FLOW_PTYPE_MAX);
};
/**
* ice_is_pow2 - check if integer value is a power of 2
* @val: unsigned integer to be validated
*/
static bool ice_is_pow2(u64 val)
{
return (val && !(val & (val - 1)));
}
#define ICE_FLOW_SEG_HDRS_L2_MASK \
(ICE_FLOW_SEG_HDR_ETH | ICE_FLOW_SEG_HDR_VLAN)
#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)
/**
* 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 enum ice_status
ice_flow_val_hdrs(struct ice_flow_seg_info *segs, u8 segs_cnt)
{
const u32 masks = (ICE_FLOW_SEG_HDRS_L2_MASK |
ICE_FLOW_SEG_HDRS_L3_MASK |
ICE_FLOW_SEG_HDRS_L4_MASK);
u8 i;
for (i = 0; i < segs_cnt; i++) {
/* No header specified */
if (!(segs[i].hdrs & masks) || (segs[i].hdrs & ~masks))
return ICE_ERR_PARAM;
/* Multiple L3 headers */
if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK &&
!ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L3_MASK))
return ICE_ERR_PARAM;
/* Multiple L4 headers */
if (segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK &&
!ice_is_pow2(segs[i].hdrs & ICE_FLOW_SEG_HDRS_L4_MASK))
return ICE_ERR_PARAM;
}
return ICE_SUCCESS;
}
/* 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)
/* A 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 enum ice_status
ice_flow_proc_seg_hdrs(struct ice_flow_prof_params *params)
{
struct ice_flow_prof *prof;
u8 i;
ice_memset(params->ptypes, 0xff, sizeof(params->ptypes),
ICE_NONDMA_MEM);
prof = params->prof;
for (i = 0; i < params->prof->segs_cnt; i++) {
const ice_bitmap_t *src;
u32 hdrs;
if (i > 0 && (i + 1) < prof->segs_cnt)
continue;
hdrs = prof->segs[i].hdrs;
if (hdrs & ICE_FLOW_SEG_HDR_ETH) {
src = !i ? (const ice_bitmap_t *)ice_ptypes_mac_ofos :
(const ice_bitmap_t *)ice_ptypes_mac_il;
ice_and_bitmap(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_ETH;
}
if (i && hdrs & ICE_FLOW_SEG_HDR_VLAN) {
src = (const ice_bitmap_t *)ice_ptypes_macvlan_il;
ice_and_bitmap(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_VLAN;
}
if (!i && hdrs & ICE_FLOW_SEG_HDR_ARP) {
ice_and_bitmap(params->ptypes, params->ptypes,
(const ice_bitmap_t *)ice_ptypes_arp_of,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_ARP;
}
if (hdrs & ICE_FLOW_SEG_HDR_IPV4) {
src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv4_ofos :
(const ice_bitmap_t *)ice_ptypes_ipv4_il;
ice_and_bitmap(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_IPV4;
} else if (hdrs & ICE_FLOW_SEG_HDR_IPV6) {
src = !i ? (const ice_bitmap_t *)ice_ptypes_ipv6_ofos :
(const ice_bitmap_t *)ice_ptypes_ipv6_il;
ice_and_bitmap(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_IPV6;
}
if (hdrs & ICE_FLOW_SEG_HDR_ICMP) {
src = !i ? (const ice_bitmap_t *)ice_ptypes_icmp_of :
(const ice_bitmap_t *)ice_ptypes_icmp_il;
ice_and_bitmap(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_ICMP;
} else if (hdrs & ICE_FLOW_SEG_HDR_UDP) {
src = !i ? (const ice_bitmap_t *)ice_ptypes_udp_of :
(const ice_bitmap_t *)ice_ptypes_udp_il;
ice_and_bitmap(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_UDP;
} else if (hdrs & ICE_FLOW_SEG_HDR_TCP) {
ice_and_bitmap(params->ptypes, params->ptypes,
(const ice_bitmap_t *)ice_ptypes_tcp_il,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_TCP;
} else if (hdrs & ICE_FLOW_SEG_HDR_SCTP) {
src = (const ice_bitmap_t *)ice_ptypes_sctp_il;
ice_and_bitmap(params->ptypes, params->ptypes, src,
ICE_FLOW_PTYPE_MAX);
hdrs &= ~ICE_FLOW_SEG_HDR_SCTP;
} else if (hdrs & ICE_FLOW_SEG_HDR_GRE) {
if (!i) {
src = (const ice_bitmap_t *)ice_ptypes_gre_of;
ice_and_bitmap(params->ptypes, params->ptypes,
src, ICE_FLOW_PTYPE_MAX);
}
hdrs &= ~ICE_FLOW_SEG_HDR_GRE;
}
}
return ICE_SUCCESS;
}
/**
* 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
*
* 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 enum ice_status
ice_flow_xtract_fld(struct ice_hw *hw, struct ice_flow_prof_params *params,
u8 seg, enum ice_flow_field fld)
{
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;
s16 adj = 0;
u8 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_IP_DSCP:
if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV6)
adj = ICE_FLOW_FLD_IPV6_TTL_DSCP_DISP;
/* Fall through */
case ICE_FLOW_FIELD_IDX_IP_TTL:
case ICE_FLOW_FIELD_IDX_IP_PROT:
/* Some fields are located at different offsets in IPv4 and
* IPv6
*/
if (params->prof->segs[seg].hdrs & ICE_FLOW_SEG_HDR_IPV4) {
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 term
* sharing the same extraction sequence entry.
*/
if (fld == ICE_FLOW_FIELD_IDX_IP_TTL)
sib = ICE_FLOW_FIELD_IDX_IP_PROT;
else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT)
sib = ICE_FLOW_FIELD_IDX_IP_TTL;
} else if (params->prof->segs[seg].hdrs &
ICE_FLOW_SEG_HDR_IPV6) {
prot_id = seg == 0 ? ICE_PROT_IPV6_OF_OR_S :
ICE_PROT_IPV6_IL;
if (fld == ICE_FLOW_FIELD_IDX_IP_TTL)
adj = ICE_FLOW_FLD_IPV6_TTL_TTL_DISP;
else if (fld == ICE_FLOW_FIELD_IDX_IP_PROT)
adj = ICE_FLOW_FLD_IPV6_TTL_PROT_DISP;
}
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 = seg == 0 ? ICE_PROT_UDP_IL_OR_S : ICE_PROT_UDP_OF;
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_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 ICE_ERR_NOT_IMPL;
}
/* 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 * 8;
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 + adj) % ese_bits);
flds[fld].xtrct.idx = params->es_cnt;
/* Adjust the next field-entry index after accommodating the number of
* entries this field consumes
*/
cnt = DIVIDE_AND_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;
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 ICE_ERR_MAX_LIMIT;
/* 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->es_cnt++;
}
off += ICE_FLOW_FV_EXTRACT_SZ;
}
return ICE_SUCCESS;
}
/**
* 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 be extracted
*/
static enum ice_status
ice_flow_xtract_raws(struct ice_hw *hw, struct ice_flow_prof_params *params,
u8 seg)
{
u16 hdrs_sz;
u8 i;
if (!params->prof->segs[seg].raws_cnt)
return ICE_SUCCESS;
if (params->prof->segs[seg].raws_cnt >
ARRAY_SIZE(params->prof->segs[seg].raws))
return ICE_ERR_MAX_LIMIT;
/* Offsets within the segment headers are not supported */
hdrs_sz = ice_flow_calc_seg_sz(params, seg);
if (!hdrs_sz)
return ICE_ERR_PARAM;
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];
/* Only support matching raw fields in the payload */
if (raw->off < hdrs_sz)
return ICE_ERR_PARAM;
/* Convert the segment-relative offset into payload-relative
* offset.
*/
off = raw->off - hdrs_sz;
/* Storing extraction information */
raw->info.xtrct.prot_id = ICE_PROT_PAY;
raw->info.xtrct.off = (off / ICE_FLOW_FV_EXTRACT_SZ) *
ICE_FLOW_FV_EXTRACT_SZ;
raw->info.xtrct.disp = (off % ICE_FLOW_FV_EXTRACT_SZ) * 8;
raw->info.xtrct.idx = params->es_cnt;
/* Determine the number of field vector entries this raw field
* consumes.
*/
cnt = DIVIDE_AND_ROUND_UP(raw->info.xtrct.disp +
(raw->info.src.last * 8),
ICE_FLOW_FV_EXTRACT_SZ * 8);
off = raw->info.xtrct.off;
for (j = 0; j < cnt; j++) {
/* 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 ICE_ERR_MAX_LIMIT;
params->es[params->es_cnt].prot_id = ICE_PROT_PAY;
params->es[params->es_cnt].off = off;
params->es_cnt++;
off += ICE_FLOW_FV_EXTRACT_SZ;
}
}
return ICE_SUCCESS;
}
/**
* 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 enum ice_status
ice_flow_create_xtrct_seq(struct ice_hw *hw,
struct ice_flow_prof_params *params)
{
enum ice_status status = ICE_SUCCESS;
u8 i;
for (i = 0; i < params->prof->segs_cnt; i++) {
u64 match = params->prof->segs[i].match;
u16 j;
for (j = 0; j < ICE_FLOW_FIELD_IDX_MAX && match; j++) {
const u64 bit = BIT_ULL(j);
if (match & bit) {
status = ice_flow_xtract_fld
(hw, params, i, (enum ice_flow_field)j);
if (status)
return status;
match &= ~bit;
}
}
/* 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 enum ice_status
ice_flow_proc_segs(struct ice_hw *hw, struct ice_flow_prof_params *params)
{
enum ice_status 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_RSS:
/* Only header information is provided for RSS configuration.
* No further processing is needed.
*/
status = ICE_SUCCESS;
break;
case ICE_BLK_FD:
status = ICE_SUCCESS;
break;
case ICE_BLK_SW:
default:
return ICE_ERR_NOT_IMPL;
}
return status;
}
#define ICE_FLOW_FIND_PROF_CHK_FLDS 0x00000001
#define ICE_FLOW_FIND_PROF_CHK_VSI 0x00000002
/**
* 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;
LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
if (p->dir == 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) &&
!ice_is_bit_set(p->vsis, vsi_handle))
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)
return p;
}
}
return NULL;
}
/**
* ice_flow_find_prof - Look up a profile matching headers and matched fields
* @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
*/
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)
{
struct ice_flow_prof *p;
ice_acquire_lock(&hw->fl_profs_locks[blk]);
p = ice_flow_find_prof_conds(hw, blk, dir, segs, segs_cnt,
ICE_MAX_VSI, ICE_FLOW_FIND_PROF_CHK_FLDS);
ice_release_lock(&hw->fl_profs_locks[blk]);
return p ? p->id : ICE_FLOW_PROF_ID_INVAL;
}
/**
* 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], ice_flow_prof, l_entry) {
if (p->id == prof_id)
return p;
}
return NULL;
}
/**
* ice_flow_rem_entry_sync - Remove a flow entry
* @hw: pointer to the HW struct
* @entry: flow entry to be removed
*/
static enum ice_status
ice_flow_rem_entry_sync(struct ice_hw *hw, struct ice_flow_entry *entry)
{
if (!entry)
return ICE_ERR_BAD_PTR;
LIST_DEL(&entry->l_entry);
if (entry->entry)
ice_free(hw, entry->entry);
if (entry->acts)
ice_free(hw, entry->acts);
ice_free(hw, entry);
return ICE_SUCCESS;
}
/**
* 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
* @acts: array of default actions
* @acts_cnt: number of default actions
* @prof: stores the returned flow profile added
*
* Assumption: the caller has acquired the lock to the profile list
*/
static enum ice_status
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_action *acts, u8 acts_cnt,
struct ice_flow_prof **prof)
{
struct ice_flow_prof_params params;
enum ice_status status = ICE_SUCCESS;
u8 i;
if (!prof || (acts_cnt && !acts))
return ICE_ERR_BAD_PTR;
ice_memset(&params, 0, sizeof(params), ICE_NONDMA_MEM);
params.prof = (struct ice_flow_prof *)
ice_malloc(hw, sizeof(*params.prof));
if (!params.prof)
return ICE_ERR_NO_MEMORY;
/* initialize extraction sequence to all invalid (0xff) */
ice_memset(params.es, 0xff, sizeof(params.es), ICE_NONDMA_MEM);
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++)
ice_memcpy(&params.prof->segs[i], &segs[i], sizeof(*segs),
ICE_NONDMA_TO_NONDMA);
/* Make a copy of the actions that need to be persistent in the flow
* profile instance.
*/
if (acts_cnt) {
params.prof->acts = (struct ice_flow_action *)
ice_memdup(hw, acts, acts_cnt * sizeof(*acts),
ICE_NONDMA_TO_NONDMA);
if (!params.prof->acts) {
status = ICE_ERR_NO_MEMORY;
goto out;
}
}
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.es);
if (status) {
ice_debug(hw, ICE_DBG_FLOW, "Error adding a HW flow profile\n");
goto out;
}
INIT_LIST_HEAD(&params.prof->entries);
ice_init_lock(&params.prof->entries_lock);
*prof = params.prof;
out:
if (status) {
if (params.prof->acts)
ice_free(hw, params.prof->acts);
ice_free(hw, params.prof);
}
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 enum ice_status
ice_flow_rem_prof_sync(struct ice_hw *hw, enum ice_block blk,
struct ice_flow_prof *prof)
{
enum ice_status status = ICE_SUCCESS;
/* Remove all remaining flow entries before removing the flow profile */
if (!LIST_EMPTY(&prof->entries)) {
struct ice_flow_entry *e, *t;
ice_acquire_lock(&prof->entries_lock);
LIST_FOR_EACH_ENTRY_SAFE(e, t, &prof->entries, ice_flow_entry,
l_entry) {
status = ice_flow_rem_entry_sync(hw, e);
if (status)
break;
}
ice_release_lock(&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);
ice_destroy_lock(&prof->entries_lock);
if (prof->acts)
ice_free(hw, prof->acts);
ice_free(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 enum ice_status
ice_flow_assoc_prof(struct ice_hw *hw, enum ice_block blk,
struct ice_flow_prof *prof, u16 vsi_handle)
{
enum ice_status status = ICE_SUCCESS;
if (!ice_is_bit_set(prof->vsis, vsi_handle)) {
status = ice_add_prof_id_flow(hw, blk,
ice_get_hw_vsi_num(hw,
vsi_handle),
prof->id);
if (!status)
ice_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 enum ice_status
ice_flow_disassoc_prof(struct ice_hw *hw, enum ice_block blk,
struct ice_flow_prof *prof, u16 vsi_handle)
{
enum ice_status status = ICE_SUCCESS;
if (ice_is_bit_set(prof->vsis, vsi_handle)) {
status = ice_rem_prof_id_flow(hw, blk,
ice_get_hw_vsi_num(hw,
vsi_handle),
prof->id);
if (!status)
ice_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
* @acts: array of default actions
* @acts_cnt: number of default actions
* @prof: stores the returned flow profile added
*/
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 status;
if (segs_cnt > ICE_FLOW_SEG_MAX)
return ICE_ERR_MAX_LIMIT;
if (!segs_cnt)
return ICE_ERR_PARAM;
if (!segs)
return ICE_ERR_BAD_PTR;
status = ice_flow_val_hdrs(segs, segs_cnt);
if (status)
return status;
ice_acquire_lock(&hw->fl_profs_locks[blk]);
status = ice_flow_add_prof_sync(hw, blk, dir, prof_id, segs, segs_cnt,
acts, acts_cnt, prof);
if (!status)
LIST_ADD(&(*prof)->l_entry, &hw->fl_profs[blk]);
ice_release_lock(&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
*/
enum ice_status
ice_flow_rem_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id)
{
struct ice_flow_prof *prof;
enum ice_status status;
ice_acquire_lock(&hw->fl_profs_locks[blk]);
prof = ice_flow_find_prof_id(hw, blk, prof_id);
if (!prof) {
status = ICE_ERR_DOES_NOT_EXIST;
goto out;
}
/* prof becomes invalid after the call */
status = ice_flow_rem_prof_sync(hw, blk, prof);
out:
ice_release_lock(&hw->fl_profs_locks[blk]);
return status;
}
/**
* ice_flow_get_hw_prof - return the HW profile for a specific profile ID handle
* @hw: pointer to the HW struct
* @blk: classification stage
* @prof_id: the profile ID handle
* @hw_prof_id: pointer to variable to receive the HW profile ID
*/
enum ice_status
ice_flow_get_hw_prof(struct ice_hw *hw, enum ice_block blk, u64 prof_id,
u8 *hw_prof_id)
{
struct ice_prof_map *map;
map = ice_search_prof_id(hw, blk, prof_id);
if (map) {
*hw_prof_id = map->prof_id;
return ICE_SUCCESS;
}
return ICE_ERR_DOES_NOT_EXIST;
}
/**
* ice_flow_find_entry - look for a flow entry using its unique ID
* @hw: pointer to the HW struct
* @blk: classification stage
* @entry_id: unique ID to identify this flow entry
*
* This function looks for the flow entry with the specified unique ID in all
* flow profiles of the specified classification stage. If the entry is found,
* and it returns the handle to the flow entry. Otherwise, it returns
* ICE_FLOW_ENTRY_ID_INVAL.
*/
u64 ice_flow_find_entry(struct ice_hw *hw, enum ice_block blk, u64 entry_id)
{
struct ice_flow_entry *found = NULL;
struct ice_flow_prof *p;
ice_acquire_lock(&hw->fl_profs_locks[blk]);
LIST_FOR_EACH_ENTRY(p, &hw->fl_profs[blk], ice_flow_prof, l_entry) {
struct ice_flow_entry *e;
ice_acquire_lock(&p->entries_lock);
LIST_FOR_EACH_ENTRY(e, &p->entries, ice_flow_entry, l_entry)
if (e->id == entry_id) {
found = e;
break;
}
ice_release_lock(&p->entries_lock);
if (found)
break;
}
ice_release_lock(&hw->fl_profs_locks[blk]);
return found ? ICE_FLOW_ENTRY_HNDL(found) : ICE_FLOW_ENTRY_HANDLE_INVAL;
}
/**
* 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
* @acts: arrays of actions to be performed on a match
* @acts_cnt: number of actions
* @entry_h: pointer to buffer that receives the new flow entry's handle
*/
enum ice_status
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, struct ice_flow_action *acts, u8 acts_cnt,
u64 *entry_h)
{
struct ice_flow_prof *prof = NULL;
struct ice_flow_entry *e = NULL;
enum ice_status status = ICE_SUCCESS;
if (acts_cnt && !acts)
return ICE_ERR_PARAM;
/* No flow entry data is expected for RSS */
if (!entry_h || (!data && blk != ICE_BLK_RSS))
return ICE_ERR_BAD_PTR;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
ice_acquire_lock(&hw->fl_profs_locks[blk]);
prof = ice_flow_find_prof_id(hw, blk, prof_id);
if (!prof) {
status = ICE_ERR_DOES_NOT_EXIST;
} else {
/* Allocate memory for the entry being added and associate
* the VSI to the found flow profile
*/
e = (struct ice_flow_entry *)ice_malloc(hw, sizeof(*e));
if (!e)
status = ICE_ERR_NO_MEMORY;
else
status = ice_flow_assoc_prof(hw, blk, prof, vsi_handle);
}
ice_release_lock(&hw->fl_profs_locks[blk]);
if (status)
goto out;
e->id = entry_id;
e->vsi_handle = vsi_handle;
e->prof = prof;
switch (blk) {
case ICE_BLK_RSS:
/* RSS will add only one entry per VSI per profile */
break;
case ICE_BLK_FD:
break;
case ICE_BLK_SW:
case ICE_BLK_PE:
default:
status = ICE_ERR_NOT_IMPL;
goto out;
}
ice_acquire_lock(&prof->entries_lock);
LIST_ADD(&e->l_entry, &prof->entries);
ice_release_lock(&prof->entries_lock);
*entry_h = ICE_FLOW_ENTRY_HNDL(e);
out:
if (status && e) {
if (e->entry)
ice_free(hw, e->entry);
ice_free(hw, e);
}
return status;
}
/**
* ice_flow_rem_entry - Remove a flow entry
* @hw: pointer to the HW struct
* @entry_h: handle to the flow entry to be removed
*/
enum ice_status ice_flow_rem_entry(struct ice_hw *hw, u64 entry_h)
{
struct ice_flow_entry *entry;
struct ice_flow_prof *prof;
enum ice_status status;
if (entry_h == ICE_FLOW_ENTRY_HANDLE_INVAL)
return ICE_ERR_PARAM;
entry = ICE_FLOW_ENTRY_PTR((unsigned long)entry_h);
/* Retain the pointer to the flow profile as the entry will be freed */
prof = entry->prof;
ice_acquire_lock(&prof->entries_lock);
status = ice_flow_rem_entry_sync(hw, entry);
ice_release_lock(&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
* @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
* 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 type, u16 val_loc,
u16 mask_loc, u16 last_loc)
{
u64 bit = BIT_ULL(fld);
seg->match |= bit;
if (type == ICE_FLOW_FLD_TYPE_RANGE)
seg->range |= bit;
seg->fields[fld].type = 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_set_fld_prefix - sets locations of prefix field from entry's buf
* @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
* @pref_loc: location of prefix value from entry's input buffer
* @pref_sz: size of the location holding the prefix value
*
* 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
* and the IPv4 prefix value can 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_set_fld_prefix(struct ice_flow_seg_info *seg, enum ice_flow_field fld,
u16 val_loc, u16 pref_loc, u8 pref_sz)
{
/* For this type of field, the "mask" location is for the prefix value's
* location and the "last" location is for the size of the location of
* the prefix value.
*/
ice_flow_set_fld_ext(seg, fld, ICE_FLOW_FLD_TYPE_PREFIX, val_loc,
pref_loc, (u16)pref_sz);
}
/**
* 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++;
}
#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_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 enum ice_status
ice_flow_set_rss_seg_info(struct ice_flow_seg_info *segs, u64 hash_fields,
u32 flow_hdr)
{
u64 val = hash_fields;
u8 i;
for (i = 0; val && i < ICE_FLOW_FIELD_IDX_MAX; i++) {
u64 bit = BIT_ULL(i);
if (val & bit) {
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);
val &= ~bit;
}
}
ICE_FLOW_SET_HDRS(segs, flow_hdr);
if (segs->hdrs & ~ICE_FLOW_RSS_SEG_HDR_VAL_MASKS)
return ICE_ERR_PARAM;
val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L3_MASKS);
if (!ice_is_pow2(val))
return ICE_ERR_CFG;
val = (u64)(segs->hdrs & ICE_FLOW_RSS_SEG_HDR_L4_MASKS);
if (val && !ice_is_pow2(val))
return ICE_ERR_CFG;
return ICE_SUCCESS;
}
/**
* ice_rem_all_rss_vsi_ctx - remove all RSS configurations from VSI context
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
*
*/
void ice_rem_all_rss_vsi_ctx(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_rss_cfg *r, *tmp;
if (!ice_is_vsi_valid(hw, vsi_handle) ||
LIST_EMPTY(&hw->vsi_ctx[vsi_handle]->rss_list_head))
return;
ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks);
LIST_FOR_EACH_ENTRY_SAFE(r, tmp,
&hw->vsi_ctx[vsi_handle]->rss_list_head,
ice_rss_cfg, l_entry) {
LIST_DEL(&r->l_entry);
ice_free(hw, r);
}
ice_release_lock(&hw->vsi_ctx[vsi_handle]->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.
*/
enum ice_status 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;
enum ice_status status = ICE_SUCCESS;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
ice_acquire_lock(&hw->fl_profs_locks[blk]);
LIST_FOR_EACH_ENTRY_SAFE(p, t, &hw->fl_profs[blk], ice_flow_prof,
l_entry) {
if (ice_is_bit_set(p->vsis, vsi_handle)) {
status = ice_flow_disassoc_prof(hw, blk, p, vsi_handle);
if (status)
break;
if (!ice_is_any_bit_set(p->vsis, ICE_MAX_VSI)) {
status = ice_flow_rem_prof_sync(hw, blk, p);
if (status)
break;
}
}
}
ice_release_lock(&hw->fl_profs_locks[blk]);
return status;
}
/**
* ice_rem_rss_cfg_vsi_ctx - remove RSS configuration from VSI context
* @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_cfg_vsi_ctx(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->vsi_ctx[vsi_handle]->rss_list_head,
ice_rss_cfg, l_entry) {
if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs) {
LIST_DEL(&r->l_entry);
ice_free(hw, r);
return;
}
}
}
/**
* ice_add_rss_vsi_ctx - add RSS configuration to VSI context
* @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 enum ice_status
ice_add_rss_vsi_ctx(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->vsi_ctx[vsi_handle]->rss_list_head,
ice_rss_cfg, l_entry)
if (r->hashed_flds == prof->segs[prof->segs_cnt - 1].match &&
r->packet_hdr == prof->segs[prof->segs_cnt - 1].hdrs)
return ICE_SUCCESS;
rss_cfg = (struct ice_rss_cfg *)ice_malloc(hw, sizeof(*rss_cfg));
if (!rss_cfg)
return ICE_ERR_NO_MEMORY;
rss_cfg->hashed_flds = prof->segs[prof->segs_cnt - 1].match;
rss_cfg->packet_hdr = prof->segs[prof->segs_cnt - 1].hdrs;
LIST_ADD(&rss_cfg->l_entry, &hw->vsi_ctx[vsi_handle]->rss_list_head);
return ICE_SUCCESS;
}
#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 (0xFFFFFFFFULL << ICE_FLOW_PROF_HDR_S)
#define ICE_FLOW_GEN_PROFID(hash, hdr) \
(u64)(((u64)(hash) & ICE_FLOW_PROF_HASH_M) | \
(((u64)(hdr) << ICE_FLOW_PROF_HDR_S) & ICE_FLOW_PROF_HDR_M))
/**
* 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
*
* Assumption: lock has already been acquired for RSS list
*/
static enum ice_status
ice_add_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs)
{
const enum ice_block blk = ICE_BLK_RSS;
struct ice_flow_prof *prof = NULL;
struct ice_flow_seg_info *segs;
enum ice_status status = ICE_SUCCESS;
segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs));
if (!segs)
return ICE_ERR_NO_MEMORY;
/* Construct the packet segment info from the hashed fields */
status = ice_flow_set_rss_seg_info(segs, 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, 1,
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 disasscociate 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, 1,
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_cfg_vsi_ctx(hw, vsi_handle, prof);
else
goto exit;
/* Remove profile if it has no VSIs associated */
if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI)) {
status = ice_flow_rem_prof_sync(hw, blk, prof);
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, 1,
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_vsi_ctx(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->hdrs),
segs, 1, NULL, 0, &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_sync(hw, blk, prof);
goto exit;
}
status = ice_add_rss_vsi_ctx(hw, vsi_handle, prof);
exit:
ice_free(hw, 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.
*/
enum ice_status
ice_add_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs)
{
enum ice_status status;
if (hashed_flds == ICE_HASH_INVALID ||
!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks);
status = ice_add_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs);
ice_release_lock(&hw->vsi_ctx[vsi_handle]->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
*
* Assumption: lock has already been acquired for RSS list
*/
static enum ice_status
ice_rem_rss_cfg_sync(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs)
{
const enum ice_block blk = ICE_BLK_RSS;
struct ice_flow_seg_info *segs;
struct ice_flow_prof *prof;
enum ice_status status;
segs = (struct ice_flow_seg_info *)ice_malloc(hw, sizeof(*segs));
if (!segs)
return ICE_ERR_NO_MEMORY;
/* Construct the packet segment info from the hashed fields */
status = ice_flow_set_rss_seg_info(segs, hashed_flds, addl_hdrs);
if (status)
goto out;
prof = ice_flow_find_prof_conds(hw, blk, ICE_FLOW_RX, segs, 1,
vsi_handle,
ICE_FLOW_FIND_PROF_CHK_FLDS);
if (!prof) {
status = ICE_ERR_DOES_NOT_EXIST;
goto out;
}
status = ice_flow_disassoc_prof(hw, blk, prof, vsi_handle);
if (status)
goto out;
if (!ice_is_any_bit_set(prof->vsis, ICE_MAX_VSI))
status = ice_flow_rem_prof_sync(hw, blk, prof);
ice_rem_rss_cfg_vsi_ctx(hw, vsi_handle, prof);
out:
ice_free(hw, 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 apis which will in
* turn build or update buffers for RSS XLT1 section.
*/
enum ice_status
ice_rem_rss_cfg(struct ice_hw *hw, u16 vsi_handle, u64 hashed_flds,
u32 addl_hdrs)
{
enum ice_status status;
if (hashed_flds == ICE_HASH_INVALID ||
!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks);
status = ice_rem_rss_cfg_sync(hw, vsi_handle, hashed_flds, addl_hdrs);
ice_release_lock(&hw->vsi_ctx[vsi_handle]->rss_locks);
return status;
}
/**
* ice_replay_rss_cfg - remove RSS configurations associated with VSI
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
*/
enum ice_status ice_replay_rss_cfg(struct ice_hw *hw, u16 vsi_handle)
{
enum ice_status status = ICE_SUCCESS;
struct ice_rss_cfg *r;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks);
LIST_FOR_EACH_ENTRY(r, &hw->vsi_ctx[vsi_handle]->rss_list_head,
ice_rss_cfg, l_entry) {
status = ice_add_rss_cfg_sync(hw, vsi_handle, r->hashed_flds,
r->packet_hdr);
if (status)
break;
}
ice_release_lock(&hw->vsi_ctx[vsi_handle]->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)
{
struct ice_rss_cfg *r, *rss_cfg = NULL;
/* 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;
ice_acquire_lock(&hw->vsi_ctx[vsi_handle]->rss_locks);
LIST_FOR_EACH_ENTRY(r, &hw->vsi_ctx[vsi_handle]->rss_list_head,
ice_rss_cfg, l_entry)
if (r->packet_hdr == hdrs) {
rss_cfg = r;
break;
}
ice_release_lock(&hw->vsi_ctx[vsi_handle]->rss_locks);
return rss_cfg ? rss_cfg->hashed_flds : ICE_HASH_INVALID;
}
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