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linux/drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c
Anirudh Venkataramanan 7e408e07b4 ice: Drop leading underscores in enum ice_pf_state 
Remove the leading underscores in enum ice_pf_state. This is not really
communicating anything and is unnecessary. No functional change.

Signed-off-by: Anirudh Venkataramanan <anirudh.venkataramanan@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-04-14 17:00:05 -07:00

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// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2021, Intel Corporation. */
#include "ice.h"
#include "ice_base.h"
#include "ice_lib.h"
#include "ice_flow.h"
#define to_fltr_conf_from_desc(p) \
container_of(p, struct virtchnl_fdir_fltr_conf, input)
#define ICE_FLOW_PROF_TYPE_S 0
#define ICE_FLOW_PROF_TYPE_M (0xFFFFFFFFULL << ICE_FLOW_PROF_TYPE_S)
#define ICE_FLOW_PROF_VSI_S 32
#define ICE_FLOW_PROF_VSI_M (0xFFFFFFFFULL << ICE_FLOW_PROF_VSI_S)
/* Flow profile ID format:
* [0:31] - flow type, flow + tun_offs
* [32:63] - VSI index
*/
#define ICE_FLOW_PROF_FD(vsi, flow, tun_offs) \
((u64)(((((flow) + (tun_offs)) & ICE_FLOW_PROF_TYPE_M)) | \
(((u64)(vsi) << ICE_FLOW_PROF_VSI_S) & ICE_FLOW_PROF_VSI_M)))
#define GTPU_TEID_OFFSET 4
#define GTPU_EH_QFI_OFFSET 1
#define GTPU_EH_QFI_MASK 0x3F
#define PFCP_S_OFFSET 0
#define PFCP_S_MASK 0x1
#define PFCP_PORT_NR 8805
#define FDIR_INSET_FLAG_ESP_S 0
#define FDIR_INSET_FLAG_ESP_M BIT_ULL(FDIR_INSET_FLAG_ESP_S)
#define FDIR_INSET_FLAG_ESP_UDP BIT_ULL(FDIR_INSET_FLAG_ESP_S)
#define FDIR_INSET_FLAG_ESP_IPSEC (0ULL << FDIR_INSET_FLAG_ESP_S)
enum ice_fdir_tunnel_type {
ICE_FDIR_TUNNEL_TYPE_NONE = 0,
ICE_FDIR_TUNNEL_TYPE_GTPU,
ICE_FDIR_TUNNEL_TYPE_GTPU_EH,
};
struct virtchnl_fdir_fltr_conf {
struct ice_fdir_fltr input;
enum ice_fdir_tunnel_type ttype;
u64 inset_flag;
u32 flow_id;
};
static enum virtchnl_proto_hdr_type vc_pattern_ether[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_tcp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_TCP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_udp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_sctp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_SCTP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_tcp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_TCP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_udp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_sctp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_SCTP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_gtpu[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_GTPU_IP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_gtpu_eh[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_GTPU_IP,
VIRTCHNL_PROTO_HDR_GTPU_EH,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_l2tpv3[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_L2TPV3,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_l2tpv3[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_L2TPV3,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_esp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_ESP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_esp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_ESP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_ah[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_AH,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_ah[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_AH,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_nat_t_esp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_ESP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_nat_t_esp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_ESP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv4_pfcp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV4,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_PFCP,
VIRTCHNL_PROTO_HDR_NONE,
};
static enum virtchnl_proto_hdr_type vc_pattern_ipv6_pfcp[] = {
VIRTCHNL_PROTO_HDR_ETH,
VIRTCHNL_PROTO_HDR_IPV6,
VIRTCHNL_PROTO_HDR_UDP,
VIRTCHNL_PROTO_HDR_PFCP,
VIRTCHNL_PROTO_HDR_NONE,
};
struct virtchnl_fdir_pattern_match_item {
enum virtchnl_proto_hdr_type *list;
u64 input_set;
u64 *meta;
};
static const struct virtchnl_fdir_pattern_match_item vc_fdir_pattern_os[] = {
{vc_pattern_ipv4, 0, NULL},
{vc_pattern_ipv4_tcp, 0, NULL},
{vc_pattern_ipv4_udp, 0, NULL},
{vc_pattern_ipv4_sctp, 0, NULL},
{vc_pattern_ipv6, 0, NULL},
{vc_pattern_ipv6_tcp, 0, NULL},
{vc_pattern_ipv6_udp, 0, NULL},
{vc_pattern_ipv6_sctp, 0, NULL},
};
static const struct virtchnl_fdir_pattern_match_item vc_fdir_pattern_comms[] = {
{vc_pattern_ipv4, 0, NULL},
{vc_pattern_ipv4_tcp, 0, NULL},
{vc_pattern_ipv4_udp, 0, NULL},
{vc_pattern_ipv4_sctp, 0, NULL},
{vc_pattern_ipv6, 0, NULL},
{vc_pattern_ipv6_tcp, 0, NULL},
{vc_pattern_ipv6_udp, 0, NULL},
{vc_pattern_ipv6_sctp, 0, NULL},
{vc_pattern_ether, 0, NULL},
{vc_pattern_ipv4_gtpu, 0, NULL},
{vc_pattern_ipv4_gtpu_eh, 0, NULL},
{vc_pattern_ipv4_l2tpv3, 0, NULL},
{vc_pattern_ipv6_l2tpv3, 0, NULL},
{vc_pattern_ipv4_esp, 0, NULL},
{vc_pattern_ipv6_esp, 0, NULL},
{vc_pattern_ipv4_ah, 0, NULL},
{vc_pattern_ipv6_ah, 0, NULL},
{vc_pattern_ipv4_nat_t_esp, 0, NULL},
{vc_pattern_ipv6_nat_t_esp, 0, NULL},
{vc_pattern_ipv4_pfcp, 0, NULL},
{vc_pattern_ipv6_pfcp, 0, NULL},
};
struct virtchnl_fdir_inset_map {
enum virtchnl_proto_hdr_field field;
enum ice_flow_field fld;
u64 flag;
u64 mask;
};
static const struct virtchnl_fdir_inset_map fdir_inset_map[] = {
{VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE, ICE_FLOW_FIELD_IDX_ETH_TYPE, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV4_SRC, ICE_FLOW_FIELD_IDX_IPV4_SA, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV4_DST, ICE_FLOW_FIELD_IDX_IPV4_DA, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV4_DSCP, ICE_FLOW_FIELD_IDX_IPV4_DSCP, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV4_TTL, ICE_FLOW_FIELD_IDX_IPV4_TTL, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV4_PROT, ICE_FLOW_FIELD_IDX_IPV4_PROT, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV6_SRC, ICE_FLOW_FIELD_IDX_IPV6_SA, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV6_DST, ICE_FLOW_FIELD_IDX_IPV6_DA, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV6_TC, ICE_FLOW_FIELD_IDX_IPV6_DSCP, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV6_HOP_LIMIT, ICE_FLOW_FIELD_IDX_IPV6_TTL, 0, 0},
{VIRTCHNL_PROTO_HDR_IPV6_PROT, ICE_FLOW_FIELD_IDX_IPV6_PROT, 0, 0},
{VIRTCHNL_PROTO_HDR_UDP_SRC_PORT, ICE_FLOW_FIELD_IDX_UDP_SRC_PORT, 0, 0},
{VIRTCHNL_PROTO_HDR_UDP_DST_PORT, ICE_FLOW_FIELD_IDX_UDP_DST_PORT, 0, 0},
{VIRTCHNL_PROTO_HDR_TCP_SRC_PORT, ICE_FLOW_FIELD_IDX_TCP_SRC_PORT, 0, 0},
{VIRTCHNL_PROTO_HDR_TCP_DST_PORT, ICE_FLOW_FIELD_IDX_TCP_DST_PORT, 0, 0},
{VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT, ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT, 0, 0},
{VIRTCHNL_PROTO_HDR_SCTP_DST_PORT, ICE_FLOW_FIELD_IDX_SCTP_DST_PORT, 0, 0},
{VIRTCHNL_PROTO_HDR_GTPU_IP_TEID, ICE_FLOW_FIELD_IDX_GTPU_IP_TEID, 0, 0},
{VIRTCHNL_PROTO_HDR_GTPU_EH_QFI, ICE_FLOW_FIELD_IDX_GTPU_EH_QFI, 0, 0},
{VIRTCHNL_PROTO_HDR_ESP_SPI, ICE_FLOW_FIELD_IDX_ESP_SPI,
FDIR_INSET_FLAG_ESP_IPSEC, FDIR_INSET_FLAG_ESP_M},
{VIRTCHNL_PROTO_HDR_ESP_SPI, ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI,
FDIR_INSET_FLAG_ESP_UDP, FDIR_INSET_FLAG_ESP_M},
{VIRTCHNL_PROTO_HDR_AH_SPI, ICE_FLOW_FIELD_IDX_AH_SPI, 0, 0},
{VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID, ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID, 0, 0},
{VIRTCHNL_PROTO_HDR_PFCP_S_FIELD, ICE_FLOW_FIELD_IDX_UDP_DST_PORT, 0, 0},
};
/**
* ice_vc_fdir_param_check
* @vf: pointer to the VF structure
* @vsi_id: VF relative VSI ID
*
* Check for the valid VSI ID, PF's state and VF's state
*
* Return: 0 on success, and -EINVAL on error.
*/
static int
ice_vc_fdir_param_check(struct ice_vf *vf, u16 vsi_id)
{
struct ice_pf *pf = vf->pf;
if (!test_bit(ICE_FLAG_FD_ENA, pf->flags))
return -EINVAL;
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
return -EINVAL;
if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF))
return -EINVAL;
if (vsi_id != vf->lan_vsi_num)
return -EINVAL;
if (!ice_vc_isvalid_vsi_id(vf, vsi_id))
return -EINVAL;
if (!pf->vsi[vf->lan_vsi_idx])
return -EINVAL;
return 0;
}
/**
* ice_vf_start_ctrl_vsi
* @vf: pointer to the VF structure
*
* Allocate ctrl_vsi for the first time and open the ctrl_vsi port for VF
*
* Return: 0 on success, and other on error.
*/
static int ice_vf_start_ctrl_vsi(struct ice_vf *vf)
{
struct ice_pf *pf = vf->pf;
struct ice_vsi *ctrl_vsi;
struct device *dev;
int err;
dev = ice_pf_to_dev(pf);
if (vf->ctrl_vsi_idx != ICE_NO_VSI)
return -EEXIST;
ctrl_vsi = ice_vf_ctrl_vsi_setup(vf);
if (!ctrl_vsi) {
dev_dbg(dev, "Could not setup control VSI for VF %d\n",
vf->vf_id);
return -ENOMEM;
}
err = ice_vsi_open_ctrl(ctrl_vsi);
if (err) {
dev_dbg(dev, "Could not open control VSI for VF %d\n",
vf->vf_id);
goto err_vsi_open;
}
return 0;
err_vsi_open:
ice_vsi_release(ctrl_vsi);
if (vf->ctrl_vsi_idx != ICE_NO_VSI) {
pf->vsi[vf->ctrl_vsi_idx] = NULL;
vf->ctrl_vsi_idx = ICE_NO_VSI;
}
return err;
}
/**
* ice_vc_fdir_alloc_prof - allocate profile for this filter flow type
* @vf: pointer to the VF structure
* @flow: filter flow type
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_alloc_prof(struct ice_vf *vf, enum ice_fltr_ptype flow)
{
struct ice_vf_fdir *fdir = &vf->fdir;
if (!fdir->fdir_prof) {
fdir->fdir_prof = devm_kcalloc(ice_pf_to_dev(vf->pf),
ICE_FLTR_PTYPE_MAX,
sizeof(*fdir->fdir_prof),
GFP_KERNEL);
if (!fdir->fdir_prof)
return -ENOMEM;
}
if (!fdir->fdir_prof[flow]) {
fdir->fdir_prof[flow] = devm_kzalloc(ice_pf_to_dev(vf->pf),
sizeof(**fdir->fdir_prof),
GFP_KERNEL);
if (!fdir->fdir_prof[flow])
return -ENOMEM;
}
return 0;
}
/**
* ice_vc_fdir_free_prof - free profile for this filter flow type
* @vf: pointer to the VF structure
* @flow: filter flow type
*/
static void
ice_vc_fdir_free_prof(struct ice_vf *vf, enum ice_fltr_ptype flow)
{
struct ice_vf_fdir *fdir = &vf->fdir;
if (!fdir->fdir_prof)
return;
if (!fdir->fdir_prof[flow])
return;
devm_kfree(ice_pf_to_dev(vf->pf), fdir->fdir_prof[flow]);
fdir->fdir_prof[flow] = NULL;
}
/**
* ice_vc_fdir_free_prof_all - free all the profile for this VF
* @vf: pointer to the VF structure
*/
static void ice_vc_fdir_free_prof_all(struct ice_vf *vf)
{
struct ice_vf_fdir *fdir = &vf->fdir;
enum ice_fltr_ptype flow;
if (!fdir->fdir_prof)
return;
for (flow = ICE_FLTR_PTYPE_NONF_NONE; flow < ICE_FLTR_PTYPE_MAX; flow++)
ice_vc_fdir_free_prof(vf, flow);
devm_kfree(ice_pf_to_dev(vf->pf), fdir->fdir_prof);
fdir->fdir_prof = NULL;
}
/**
* ice_vc_fdir_parse_flow_fld
* @proto_hdr: virtual channel protocol filter header
* @conf: FDIR configuration for each filter
* @fld: field type array
* @fld_cnt: field counter
*
* Parse the virtual channel filter header and store them into field type array
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_parse_flow_fld(struct virtchnl_proto_hdr *proto_hdr,
struct virtchnl_fdir_fltr_conf *conf,
enum ice_flow_field *fld, int *fld_cnt)
{
struct virtchnl_proto_hdr hdr;
u32 i;
memcpy(&hdr, proto_hdr, sizeof(hdr));
for (i = 0; (i < ARRAY_SIZE(fdir_inset_map)) &&
VIRTCHNL_GET_PROTO_HDR_FIELD(&hdr); i++)
if (VIRTCHNL_TEST_PROTO_HDR(&hdr, fdir_inset_map[i].field)) {
if (fdir_inset_map[i].mask &&
((fdir_inset_map[i].mask & conf->inset_flag) !=
fdir_inset_map[i].flag))
continue;
fld[*fld_cnt] = fdir_inset_map[i].fld;
*fld_cnt += 1;
if (*fld_cnt >= ICE_FLOW_FIELD_IDX_MAX)
return -EINVAL;
VIRTCHNL_DEL_PROTO_HDR_FIELD(&hdr,
fdir_inset_map[i].field);
}
return 0;
}
/**
* ice_vc_fdir_set_flow_fld
* @vf: pointer to the VF structure
* @fltr: virtual channel add cmd buffer
* @conf: FDIR configuration for each filter
* @seg: array of one or more packet segments that describe the flow
*
* Parse the virtual channel add msg buffer's field vector and store them into
* flow's packet segment field
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_set_flow_fld(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
struct virtchnl_fdir_fltr_conf *conf,
struct ice_flow_seg_info *seg)
{
struct virtchnl_fdir_rule *rule = &fltr->rule_cfg;
enum ice_flow_field fld[ICE_FLOW_FIELD_IDX_MAX];
struct device *dev = ice_pf_to_dev(vf->pf);
struct virtchnl_proto_hdrs *proto;
int fld_cnt = 0;
int i;
proto = &rule->proto_hdrs;
for (i = 0; i < proto->count; i++) {
struct virtchnl_proto_hdr *hdr = &proto->proto_hdr[i];
int ret;
ret = ice_vc_fdir_parse_flow_fld(hdr, conf, fld, &fld_cnt);
if (ret)
return ret;
}
if (fld_cnt == 0) {
dev_dbg(dev, "Empty input set for VF %d\n", vf->vf_id);
return -EINVAL;
}
for (i = 0; i < fld_cnt; i++)
ice_flow_set_fld(seg, fld[i],
ICE_FLOW_FLD_OFF_INVAL,
ICE_FLOW_FLD_OFF_INVAL,
ICE_FLOW_FLD_OFF_INVAL, false);
return 0;
}
/**
* ice_vc_fdir_set_flow_hdr - config the flow's packet segment header
* @vf: pointer to the VF structure
* @conf: FDIR configuration for each filter
* @seg: array of one or more packet segments that describe the flow
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_set_flow_hdr(struct ice_vf *vf,
struct virtchnl_fdir_fltr_conf *conf,
struct ice_flow_seg_info *seg)
{
enum ice_fltr_ptype flow = conf->input.flow_type;
enum ice_fdir_tunnel_type ttype = conf->ttype;
struct device *dev = ice_pf_to_dev(vf->pf);
switch (flow) {
case ICE_FLTR_PTYPE_NON_IP_L2:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_ETH_NON_IP);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_L2TPV3:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_L2TPV3 |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_ESP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_ESP |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_AH:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_AH |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_NAT_T_ESP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_NAT_T_ESP |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_PFCP_NODE:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_NODE |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_PFCP_SESSION:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_SESSION |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_OTHER:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_TCP |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_UDP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_UDP |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_UDP:
case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_TCP:
case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_ICMP:
case ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER:
if (ttype == ICE_FDIR_TUNNEL_TYPE_GTPU) {
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_GTPU_IP |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
} else if (ttype == ICE_FDIR_TUNNEL_TYPE_GTPU_EH) {
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_GTPU_EH |
ICE_FLOW_SEG_HDR_GTPU_IP |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
} else {
dev_dbg(dev, "Invalid tunnel type 0x%x for VF %d\n",
flow, vf->vf_id);
return -EINVAL;
}
break;
case ICE_FLTR_PTYPE_NONF_IPV4_SCTP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_SCTP |
ICE_FLOW_SEG_HDR_IPV4 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_L2TPV3:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_L2TPV3 |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_ESP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_ESP |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_AH:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_AH |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_NAT_T_ESP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_NAT_T_ESP |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_PFCP_NODE:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_NODE |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_PFCP_SESSION:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_PFCP_SESSION |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_OTHER:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_TCP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_TCP |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_UDP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_UDP |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
case ICE_FLTR_PTYPE_NONF_IPV6_SCTP:
ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_SCTP |
ICE_FLOW_SEG_HDR_IPV6 |
ICE_FLOW_SEG_HDR_IPV_OTHER);
break;
default:
dev_dbg(dev, "Invalid flow type 0x%x for VF %d failed\n",
flow, vf->vf_id);
return -EINVAL;
}
return 0;
}
/**
* ice_vc_fdir_rem_prof - remove profile for this filter flow type
* @vf: pointer to the VF structure
* @flow: filter flow type
* @tun: 0 implies non-tunnel type filter, 1 implies tunnel type filter
*/
static void
ice_vc_fdir_rem_prof(struct ice_vf *vf, enum ice_fltr_ptype flow, int tun)
{
struct ice_vf_fdir *fdir = &vf->fdir;
struct ice_fd_hw_prof *vf_prof;
struct ice_pf *pf = vf->pf;
struct ice_vsi *vf_vsi;
struct device *dev;
struct ice_hw *hw;
u64 prof_id;
int i;
dev = ice_pf_to_dev(pf);
hw = &pf->hw;
if (!fdir->fdir_prof || !fdir->fdir_prof[flow])
return;
vf_prof = fdir->fdir_prof[flow];
vf_vsi = pf->vsi[vf->lan_vsi_idx];
if (!vf_vsi) {
dev_dbg(dev, "NULL vf %d vsi pointer\n", vf->vf_id);
return;
}
if (!fdir->prof_entry_cnt[flow][tun])
return;
prof_id = ICE_FLOW_PROF_FD(vf_vsi->vsi_num,
flow, tun ? ICE_FLTR_PTYPE_MAX : 0);
for (i = 0; i < fdir->prof_entry_cnt[flow][tun]; i++)
if (vf_prof->entry_h[i][tun]) {
u16 vsi_num = ice_get_hw_vsi_num(hw, vf_prof->vsi_h[i]);
ice_rem_prof_id_flow(hw, ICE_BLK_FD, vsi_num, prof_id);
ice_flow_rem_entry(hw, ICE_BLK_FD,
vf_prof->entry_h[i][tun]);
vf_prof->entry_h[i][tun] = 0;
}
ice_flow_rem_prof(hw, ICE_BLK_FD, prof_id);
devm_kfree(dev, vf_prof->fdir_seg[tun]);
vf_prof->fdir_seg[tun] = NULL;
for (i = 0; i < vf_prof->cnt; i++)
vf_prof->vsi_h[i] = 0;
fdir->prof_entry_cnt[flow][tun] = 0;
}
/**
* ice_vc_fdir_rem_prof_all - remove profile for this VF
* @vf: pointer to the VF structure
*/
static void ice_vc_fdir_rem_prof_all(struct ice_vf *vf)
{
enum ice_fltr_ptype flow;
for (flow = ICE_FLTR_PTYPE_NONF_NONE;
flow < ICE_FLTR_PTYPE_MAX; flow++) {
ice_vc_fdir_rem_prof(vf, flow, 0);
ice_vc_fdir_rem_prof(vf, flow, 1);
}
}
/**
* ice_vc_fdir_write_flow_prof
* @vf: pointer to the VF structure
* @flow: filter flow type
* @seg: array of one or more packet segments that describe the flow
* @tun: 0 implies non-tunnel type filter, 1 implies tunnel type filter
*
* Write the flow's profile config and packet segment into the hardware
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_write_flow_prof(struct ice_vf *vf, enum ice_fltr_ptype flow,
struct ice_flow_seg_info *seg, int tun)
{
struct ice_vf_fdir *fdir = &vf->fdir;
struct ice_vsi *vf_vsi, *ctrl_vsi;
struct ice_flow_seg_info *old_seg;
struct ice_flow_prof *prof = NULL;
struct ice_fd_hw_prof *vf_prof;
enum ice_status status;
struct device *dev;
struct ice_pf *pf;
struct ice_hw *hw;
u64 entry1_h = 0;
u64 entry2_h = 0;
u64 prof_id;
int ret;
pf = vf->pf;
dev = ice_pf_to_dev(pf);
hw = &pf->hw;
vf_vsi = pf->vsi[vf->lan_vsi_idx];
if (!vf_vsi)
return -EINVAL;
ctrl_vsi = pf->vsi[vf->ctrl_vsi_idx];
if (!ctrl_vsi)
return -EINVAL;
vf_prof = fdir->fdir_prof[flow];
old_seg = vf_prof->fdir_seg[tun];
if (old_seg) {
if (!memcmp(old_seg, seg, sizeof(*seg))) {
dev_dbg(dev, "Duplicated profile for VF %d!\n",
vf->vf_id);
return -EEXIST;
}
if (fdir->fdir_fltr_cnt[flow][tun]) {
ret = -EINVAL;
dev_dbg(dev, "Input set conflicts for VF %d\n",
vf->vf_id);
goto err_exit;
}
/* remove previously allocated profile */
ice_vc_fdir_rem_prof(vf, flow, tun);
}
prof_id = ICE_FLOW_PROF_FD(vf_vsi->vsi_num, flow,
tun ? ICE_FLTR_PTYPE_MAX : 0);
status = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof_id, seg,
tun + 1, &prof);
ret = ice_status_to_errno(status);
if (ret) {
dev_dbg(dev, "Could not add VSI flow 0x%x for VF %d\n",
flow, vf->vf_id);
goto err_exit;
}
status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, vf_vsi->idx,
vf_vsi->idx, ICE_FLOW_PRIO_NORMAL,
seg, &entry1_h);
ret = ice_status_to_errno(status);
if (ret) {
dev_dbg(dev, "Could not add flow 0x%x VSI entry for VF %d\n",
flow, vf->vf_id);
goto err_prof;
}
status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, vf_vsi->idx,
ctrl_vsi->idx, ICE_FLOW_PRIO_NORMAL,
seg, &entry2_h);
ret = ice_status_to_errno(status);
if (ret) {
dev_dbg(dev,
"Could not add flow 0x%x Ctrl VSI entry for VF %d\n",
flow, vf->vf_id);
goto err_entry_1;
}
vf_prof->fdir_seg[tun] = seg;
vf_prof->cnt = 0;
fdir->prof_entry_cnt[flow][tun] = 0;
vf_prof->entry_h[vf_prof->cnt][tun] = entry1_h;
vf_prof->vsi_h[vf_prof->cnt] = vf_vsi->idx;
vf_prof->cnt++;
fdir->prof_entry_cnt[flow][tun]++;
vf_prof->entry_h[vf_prof->cnt][tun] = entry2_h;
vf_prof->vsi_h[vf_prof->cnt] = ctrl_vsi->idx;
vf_prof->cnt++;
fdir->prof_entry_cnt[flow][tun]++;
return 0;
err_entry_1:
ice_rem_prof_id_flow(hw, ICE_BLK_FD,
ice_get_hw_vsi_num(hw, vf_vsi->idx), prof_id);
ice_flow_rem_entry(hw, ICE_BLK_FD, entry1_h);
err_prof:
ice_flow_rem_prof(hw, ICE_BLK_FD, prof_id);
err_exit:
return ret;
}
/**
* ice_vc_fdir_config_input_set
* @vf: pointer to the VF structure
* @fltr: virtual channel add cmd buffer
* @conf: FDIR configuration for each filter
* @tun: 0 implies non-tunnel type filter, 1 implies tunnel type filter
*
* Config the input set type and value for virtual channel add msg buffer
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_config_input_set(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
struct virtchnl_fdir_fltr_conf *conf, int tun)
{
struct ice_fdir_fltr *input = &conf->input;
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_flow_seg_info *seg;
enum ice_fltr_ptype flow;
int ret;
flow = input->flow_type;
ret = ice_vc_fdir_alloc_prof(vf, flow);
if (ret) {
dev_dbg(dev, "Alloc flow prof for VF %d failed\n", vf->vf_id);
return ret;
}
seg = devm_kzalloc(dev, sizeof(*seg), GFP_KERNEL);
if (!seg)
return -ENOMEM;
ret = ice_vc_fdir_set_flow_fld(vf, fltr, conf, seg);
if (ret) {
dev_dbg(dev, "Set flow field for VF %d failed\n", vf->vf_id);
goto err_exit;
}
ret = ice_vc_fdir_set_flow_hdr(vf, conf, seg);
if (ret) {
dev_dbg(dev, "Set flow hdr for VF %d failed\n", vf->vf_id);
goto err_exit;
}
ret = ice_vc_fdir_write_flow_prof(vf, flow, seg, tun);
if (ret == -EEXIST) {
devm_kfree(dev, seg);
} else if (ret) {
dev_dbg(dev, "Write flow profile for VF %d failed\n",
vf->vf_id);
goto err_exit;
}
return 0;
err_exit:
devm_kfree(dev, seg);
return ret;
}
/**
* ice_vc_fdir_match_pattern
* @fltr: virtual channel add cmd buffer
* @type: virtual channel protocol filter header type
*
* Matching the header type by comparing fltr and type's value.
*
* Return: true on success, and false on error.
*/
static bool
ice_vc_fdir_match_pattern(struct virtchnl_fdir_add *fltr,
enum virtchnl_proto_hdr_type *type)
{
struct virtchnl_proto_hdrs *proto = &fltr->rule_cfg.proto_hdrs;
int i = 0;
while ((i < proto->count) &&
(*type == proto->proto_hdr[i].type) &&
(*type != VIRTCHNL_PROTO_HDR_NONE)) {
type++;
i++;
}
return ((i == proto->count) && (*type == VIRTCHNL_PROTO_HDR_NONE));
}
/**
* ice_vc_fdir_get_pattern - get while list pattern
* @vf: pointer to the VF info
* @len: filter list length
*
* Return: pointer to allowed filter list
*/
static const struct virtchnl_fdir_pattern_match_item *
ice_vc_fdir_get_pattern(struct ice_vf *vf, int *len)
{
const struct virtchnl_fdir_pattern_match_item *item;
struct ice_pf *pf = vf->pf;
struct ice_hw *hw;
hw = &pf->hw;
if (!strncmp(hw->active_pkg_name, "ICE COMMS Package",
sizeof(hw->active_pkg_name))) {
item = vc_fdir_pattern_comms;
*len = ARRAY_SIZE(vc_fdir_pattern_comms);
} else {
item = vc_fdir_pattern_os;
*len = ARRAY_SIZE(vc_fdir_pattern_os);
}
return item;
}
/**
* ice_vc_fdir_search_pattern
* @vf: pointer to the VF info
* @fltr: virtual channel add cmd buffer
*
* Search for matched pattern from supported pattern list
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_search_pattern(struct ice_vf *vf, struct virtchnl_fdir_add *fltr)
{
const struct virtchnl_fdir_pattern_match_item *pattern;
int len, i;
pattern = ice_vc_fdir_get_pattern(vf, &len);
for (i = 0; i < len; i++)
if (ice_vc_fdir_match_pattern(fltr, pattern[i].list))
return 0;
return -EINVAL;
}
/**
* ice_vc_fdir_parse_pattern
* @vf: pointer to the VF info
* @fltr: virtual channel add cmd buffer
* @conf: FDIR configuration for each filter
*
* Parse the virtual channel filter's pattern and store them into conf
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_parse_pattern(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
struct virtchnl_fdir_fltr_conf *conf)
{
struct virtchnl_proto_hdrs *proto = &fltr->rule_cfg.proto_hdrs;
enum virtchnl_proto_hdr_type l3 = VIRTCHNL_PROTO_HDR_NONE;
enum virtchnl_proto_hdr_type l4 = VIRTCHNL_PROTO_HDR_NONE;
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_fdir_fltr *input = &conf->input;
int i;
if (proto->count > VIRTCHNL_MAX_NUM_PROTO_HDRS) {
dev_dbg(dev, "Invalid protocol count:0x%x for VF %d\n",
proto->count, vf->vf_id);
return -EINVAL;
}
for (i = 0; i < proto->count; i++) {
struct virtchnl_proto_hdr *hdr = &proto->proto_hdr[i];
struct ip_esp_hdr *esph;
struct ip_auth_hdr *ah;
struct sctphdr *sctph;
struct ipv6hdr *ip6h;
struct udphdr *udph;
struct tcphdr *tcph;
struct ethhdr *eth;
struct iphdr *iph;
u8 s_field;
u8 *rawh;
switch (hdr->type) {
case VIRTCHNL_PROTO_HDR_ETH:
eth = (struct ethhdr *)hdr->buffer;
input->flow_type = ICE_FLTR_PTYPE_NON_IP_L2;
if (hdr->field_selector)
input->ext_data.ether_type = eth->h_proto;
break;
case VIRTCHNL_PROTO_HDR_IPV4:
iph = (struct iphdr *)hdr->buffer;
l3 = VIRTCHNL_PROTO_HDR_IPV4;
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_OTHER;
if (hdr->field_selector) {
input->ip.v4.src_ip = iph->saddr;
input->ip.v4.dst_ip = iph->daddr;
input->ip.v4.tos = iph->tos;
input->ip.v4.proto = iph->protocol;
}
break;
case VIRTCHNL_PROTO_HDR_IPV6:
ip6h = (struct ipv6hdr *)hdr->buffer;
l3 = VIRTCHNL_PROTO_HDR_IPV6;
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_OTHER;
if (hdr->field_selector) {
memcpy(input->ip.v6.src_ip,
ip6h->saddr.in6_u.u6_addr8,
sizeof(ip6h->saddr));
memcpy(input->ip.v6.dst_ip,
ip6h->daddr.in6_u.u6_addr8,
sizeof(ip6h->daddr));
input->ip.v6.tc = ((u8)(ip6h->priority) << 4) |
(ip6h->flow_lbl[0] >> 4);
input->ip.v6.proto = ip6h->nexthdr;
}
break;
case VIRTCHNL_PROTO_HDR_TCP:
tcph = (struct tcphdr *)hdr->buffer;
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_TCP;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_TCP;
if (hdr->field_selector) {
if (l3 == VIRTCHNL_PROTO_HDR_IPV4) {
input->ip.v4.src_port = tcph->source;
input->ip.v4.dst_port = tcph->dest;
} else if (l3 == VIRTCHNL_PROTO_HDR_IPV6) {
input->ip.v6.src_port = tcph->source;
input->ip.v6.dst_port = tcph->dest;
}
}
break;
case VIRTCHNL_PROTO_HDR_UDP:
udph = (struct udphdr *)hdr->buffer;
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_UDP;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_UDP;
if (hdr->field_selector) {
if (l3 == VIRTCHNL_PROTO_HDR_IPV4) {
input->ip.v4.src_port = udph->source;
input->ip.v4.dst_port = udph->dest;
} else if (l3 == VIRTCHNL_PROTO_HDR_IPV6) {
input->ip.v6.src_port = udph->source;
input->ip.v6.dst_port = udph->dest;
}
}
break;
case VIRTCHNL_PROTO_HDR_SCTP:
sctph = (struct sctphdr *)hdr->buffer;
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->flow_type =
ICE_FLTR_PTYPE_NONF_IPV4_SCTP;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->flow_type =
ICE_FLTR_PTYPE_NONF_IPV6_SCTP;
if (hdr->field_selector) {
if (l3 == VIRTCHNL_PROTO_HDR_IPV4) {
input->ip.v4.src_port = sctph->source;
input->ip.v4.dst_port = sctph->dest;
} else if (l3 == VIRTCHNL_PROTO_HDR_IPV6) {
input->ip.v6.src_port = sctph->source;
input->ip.v6.dst_port = sctph->dest;
}
}
break;
case VIRTCHNL_PROTO_HDR_L2TPV3:
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_L2TPV3;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_L2TPV3;
if (hdr->field_selector)
input->l2tpv3_data.session_id = *((__be32 *)hdr->buffer);
break;
case VIRTCHNL_PROTO_HDR_ESP:
esph = (struct ip_esp_hdr *)hdr->buffer;
if (l3 == VIRTCHNL_PROTO_HDR_IPV4 &&
l4 == VIRTCHNL_PROTO_HDR_UDP)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_NAT_T_ESP;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 &&
l4 == VIRTCHNL_PROTO_HDR_UDP)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_NAT_T_ESP;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV4 &&
l4 == VIRTCHNL_PROTO_HDR_NONE)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_ESP;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 &&
l4 == VIRTCHNL_PROTO_HDR_NONE)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_ESP;
if (l4 == VIRTCHNL_PROTO_HDR_UDP)
conf->inset_flag |= FDIR_INSET_FLAG_ESP_UDP;
else
conf->inset_flag |= FDIR_INSET_FLAG_ESP_IPSEC;
if (hdr->field_selector) {
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->ip.v4.sec_parm_idx = esph->spi;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->ip.v6.sec_parm_idx = esph->spi;
}
break;
case VIRTCHNL_PROTO_HDR_AH:
ah = (struct ip_auth_hdr *)hdr->buffer;
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_AH;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_AH;
if (hdr->field_selector) {
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->ip.v4.sec_parm_idx = ah->spi;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->ip.v6.sec_parm_idx = ah->spi;
}
break;
case VIRTCHNL_PROTO_HDR_PFCP:
rawh = (u8 *)hdr->buffer;
s_field = (rawh[0] >> PFCP_S_OFFSET) & PFCP_S_MASK;
if (l3 == VIRTCHNL_PROTO_HDR_IPV4 && s_field == 0)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_PFCP_NODE;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV4 && s_field == 1)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_PFCP_SESSION;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 && s_field == 0)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_PFCP_NODE;
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6 && s_field == 1)
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV6_PFCP_SESSION;
if (hdr->field_selector) {
if (l3 == VIRTCHNL_PROTO_HDR_IPV4)
input->ip.v4.dst_port = cpu_to_be16(PFCP_PORT_NR);
else if (l3 == VIRTCHNL_PROTO_HDR_IPV6)
input->ip.v6.dst_port = cpu_to_be16(PFCP_PORT_NR);
}
break;
case VIRTCHNL_PROTO_HDR_GTPU_IP:
rawh = (u8 *)hdr->buffer;
input->flow_type = ICE_FLTR_PTYPE_NONF_IPV4_GTPU_IPV4_OTHER;
if (hdr->field_selector)
input->gtpu_data.teid = *(__be32 *)(&rawh[GTPU_TEID_OFFSET]);
conf->ttype = ICE_FDIR_TUNNEL_TYPE_GTPU;
break;
case VIRTCHNL_PROTO_HDR_GTPU_EH:
rawh = (u8 *)hdr->buffer;
if (hdr->field_selector)
input->gtpu_data.qfi = rawh[GTPU_EH_QFI_OFFSET] & GTPU_EH_QFI_MASK;
conf->ttype = ICE_FDIR_TUNNEL_TYPE_GTPU_EH;
break;
default:
dev_dbg(dev, "Invalid header type 0x:%x for VF %d\n",
hdr->type, vf->vf_id);
return -EINVAL;
}
}
return 0;
}
/**
* ice_vc_fdir_parse_action
* @vf: pointer to the VF info
* @fltr: virtual channel add cmd buffer
* @conf: FDIR configuration for each filter
*
* Parse the virtual channel filter's action and store them into conf
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_parse_action(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
struct virtchnl_fdir_fltr_conf *conf)
{
struct virtchnl_filter_action_set *as = &fltr->rule_cfg.action_set;
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_fdir_fltr *input = &conf->input;
u32 dest_num = 0;
u32 mark_num = 0;
int i;
if (as->count > VIRTCHNL_MAX_NUM_ACTIONS) {
dev_dbg(dev, "Invalid action numbers:0x%x for VF %d\n",
as->count, vf->vf_id);
return -EINVAL;
}
for (i = 0; i < as->count; i++) {
struct virtchnl_filter_action *action = &as->actions[i];
switch (action->type) {
case VIRTCHNL_ACTION_PASSTHRU:
dest_num++;
input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_OTHER;
break;
case VIRTCHNL_ACTION_DROP:
dest_num++;
input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DROP_PKT;
break;
case VIRTCHNL_ACTION_QUEUE:
dest_num++;
input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX;
input->q_index = action->act_conf.queue.index;
break;
case VIRTCHNL_ACTION_Q_REGION:
dest_num++;
input->dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QGROUP;
input->q_index = action->act_conf.queue.index;
input->q_region = action->act_conf.queue.region;
break;
case VIRTCHNL_ACTION_MARK:
mark_num++;
input->fltr_id = action->act_conf.mark_id;
input->fdid_prio = ICE_FXD_FLTR_QW1_FDID_PRI_THREE;
break;
default:
dev_dbg(dev, "Invalid action type:0x%x for VF %d\n",
action->type, vf->vf_id);
return -EINVAL;
}
}
if (dest_num == 0 || dest_num >= 2) {
dev_dbg(dev, "Invalid destination action for VF %d\n",
vf->vf_id);
return -EINVAL;
}
if (mark_num >= 2) {
dev_dbg(dev, "Too many mark actions for VF %d\n", vf->vf_id);
return -EINVAL;
}
return 0;
}
/**
* ice_vc_validate_fdir_fltr - validate the virtual channel filter
* @vf: pointer to the VF info
* @fltr: virtual channel add cmd buffer
* @conf: FDIR configuration for each filter
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_validate_fdir_fltr(struct ice_vf *vf, struct virtchnl_fdir_add *fltr,
struct virtchnl_fdir_fltr_conf *conf)
{
int ret;
ret = ice_vc_fdir_search_pattern(vf, fltr);
if (ret)
return ret;
ret = ice_vc_fdir_parse_pattern(vf, fltr, conf);
if (ret)
return ret;
return ice_vc_fdir_parse_action(vf, fltr, conf);
}
/**
* ice_vc_fdir_comp_rules - compare if two filter rules have the same value
* @conf_a: FDIR configuration for filter a
* @conf_b: FDIR configuration for filter b
*
* Return: 0 on success, and other on error.
*/
static bool
ice_vc_fdir_comp_rules(struct virtchnl_fdir_fltr_conf *conf_a,
struct virtchnl_fdir_fltr_conf *conf_b)
{
struct ice_fdir_fltr *a = &conf_a->input;
struct ice_fdir_fltr *b = &conf_b->input;
if (conf_a->ttype != conf_b->ttype)
return false;
if (a->flow_type != b->flow_type)
return false;
if (memcmp(&a->ip, &b->ip, sizeof(a->ip)))
return false;
if (memcmp(&a->mask, &b->mask, sizeof(a->mask)))
return false;
if (memcmp(&a->gtpu_data, &b->gtpu_data, sizeof(a->gtpu_data)))
return false;
if (memcmp(&a->gtpu_mask, &b->gtpu_mask, sizeof(a->gtpu_mask)))
return false;
if (memcmp(&a->l2tpv3_data, &b->l2tpv3_data, sizeof(a->l2tpv3_data)))
return false;
if (memcmp(&a->l2tpv3_mask, &b->l2tpv3_mask, sizeof(a->l2tpv3_mask)))
return false;
if (memcmp(&a->ext_data, &b->ext_data, sizeof(a->ext_data)))
return false;
if (memcmp(&a->ext_mask, &b->ext_mask, sizeof(a->ext_mask)))
return false;
return true;
}
/**
* ice_vc_fdir_is_dup_fltr
* @vf: pointer to the VF info
* @conf: FDIR configuration for each filter
*
* Check if there is duplicated rule with same conf value
*
* Return: 0 true success, and false on error.
*/
static bool
ice_vc_fdir_is_dup_fltr(struct ice_vf *vf, struct virtchnl_fdir_fltr_conf *conf)
{
struct ice_fdir_fltr *desc;
bool ret;
list_for_each_entry(desc, &vf->fdir.fdir_rule_list, fltr_node) {
struct virtchnl_fdir_fltr_conf *node =
to_fltr_conf_from_desc(desc);
ret = ice_vc_fdir_comp_rules(node, conf);
if (ret)
return true;
}
return false;
}
/**
* ice_vc_fdir_insert_entry
* @vf: pointer to the VF info
* @conf: FDIR configuration for each filter
* @id: pointer to ID value allocated by driver
*
* Insert FDIR conf entry into list and allocate ID for this filter
*
* Return: 0 true success, and other on error.
*/
static int
ice_vc_fdir_insert_entry(struct ice_vf *vf,
struct virtchnl_fdir_fltr_conf *conf, u32 *id)
{
struct ice_fdir_fltr *input = &conf->input;
int i;
/* alloc ID corresponding with conf */
i = idr_alloc(&vf->fdir.fdir_rule_idr, conf, 0,
ICE_FDIR_MAX_FLTRS, GFP_KERNEL);
if (i < 0)
return -EINVAL;
*id = i;
list_add(&input->fltr_node, &vf->fdir.fdir_rule_list);
return 0;
}
/**
* ice_vc_fdir_remove_entry - remove FDIR conf entry by ID value
* @vf: pointer to the VF info
* @conf: FDIR configuration for each filter
* @id: filter rule's ID
*/
static void
ice_vc_fdir_remove_entry(struct ice_vf *vf,
struct virtchnl_fdir_fltr_conf *conf, u32 id)
{
struct ice_fdir_fltr *input = &conf->input;
idr_remove(&vf->fdir.fdir_rule_idr, id);
list_del(&input->fltr_node);
}
/**
* ice_vc_fdir_lookup_entry - lookup FDIR conf entry by ID value
* @vf: pointer to the VF info
* @id: filter rule's ID
*
* Return: NULL on error, and other on success.
*/
static struct virtchnl_fdir_fltr_conf *
ice_vc_fdir_lookup_entry(struct ice_vf *vf, u32 id)
{
return idr_find(&vf->fdir.fdir_rule_idr, id);
}
/**
* ice_vc_fdir_flush_entry - remove all FDIR conf entry
* @vf: pointer to the VF info
*/
static void ice_vc_fdir_flush_entry(struct ice_vf *vf)
{
struct virtchnl_fdir_fltr_conf *conf;
struct ice_fdir_fltr *desc, *temp;
list_for_each_entry_safe(desc, temp,
&vf->fdir.fdir_rule_list, fltr_node) {
conf = to_fltr_conf_from_desc(desc);
list_del(&desc->fltr_node);
devm_kfree(ice_pf_to_dev(vf->pf), conf);
}
}
/**
* ice_vc_fdir_write_fltr - write filter rule into hardware
* @vf: pointer to the VF info
* @conf: FDIR configuration for each filter
* @add: true implies add rule, false implies del rules
* @is_tun: false implies non-tunnel type filter, true implies tunnel filter
*
* Return: 0 on success, and other on error.
*/
static int ice_vc_fdir_write_fltr(struct ice_vf *vf,
struct virtchnl_fdir_fltr_conf *conf,
bool add, bool is_tun)
{
struct ice_fdir_fltr *input = &conf->input;
struct ice_vsi *vsi, *ctrl_vsi;
struct ice_fltr_desc desc;
enum ice_status status;
struct device *dev;
struct ice_pf *pf;
struct ice_hw *hw;
int ret;
u8 *pkt;
pf = vf->pf;
dev = ice_pf_to_dev(pf);
hw = &pf->hw;
vsi = pf->vsi[vf->lan_vsi_idx];
if (!vsi) {
dev_dbg(dev, "Invalid vsi for VF %d\n", vf->vf_id);
return -EINVAL;
}
input->dest_vsi = vsi->idx;
input->comp_report = ICE_FXD_FLTR_QW0_COMP_REPORT_SW;
ctrl_vsi = pf->vsi[vf->ctrl_vsi_idx];
if (!ctrl_vsi) {
dev_dbg(dev, "Invalid ctrl_vsi for VF %d\n", vf->vf_id);
return -EINVAL;
}
pkt = devm_kzalloc(dev, ICE_FDIR_MAX_RAW_PKT_SIZE, GFP_KERNEL);
if (!pkt)
return -ENOMEM;
ice_fdir_get_prgm_desc(hw, input, &desc, add);
status = ice_fdir_get_gen_prgm_pkt(hw, input, pkt, false, is_tun);
ret = ice_status_to_errno(status);
if (ret) {
dev_dbg(dev, "Gen training pkt for VF %d ptype %d failed\n",
vf->vf_id, input->flow_type);
goto err_free_pkt;
}
ret = ice_prgm_fdir_fltr(ctrl_vsi, &desc, pkt);
if (ret)
goto err_free_pkt;
return 0;
err_free_pkt:
devm_kfree(dev, pkt);
return ret;
}
/**
* ice_vf_fdir_timer - FDIR program waiting timer interrupt handler
* @t: pointer to timer_list
*/
static void ice_vf_fdir_timer(struct timer_list *t)
{
struct ice_vf_fdir_ctx *ctx_irq = from_timer(ctx_irq, t, rx_tmr);
struct ice_vf_fdir_ctx *ctx_done;
struct ice_vf_fdir *fdir;
unsigned long flags;
struct ice_vf *vf;
struct ice_pf *pf;
fdir = container_of(ctx_irq, struct ice_vf_fdir, ctx_irq);
vf = container_of(fdir, struct ice_vf, fdir);
ctx_done = &fdir->ctx_done;
pf = vf->pf;
spin_lock_irqsave(&fdir->ctx_lock, flags);
if (!(ctx_irq->flags & ICE_VF_FDIR_CTX_VALID)) {
spin_unlock_irqrestore(&fdir->ctx_lock, flags);
WARN_ON_ONCE(1);
return;
}
ctx_irq->flags &= ~ICE_VF_FDIR_CTX_VALID;
ctx_done->flags |= ICE_VF_FDIR_CTX_VALID;
ctx_done->conf = ctx_irq->conf;
ctx_done->stat = ICE_FDIR_CTX_TIMEOUT;
ctx_done->v_opcode = ctx_irq->v_opcode;
spin_unlock_irqrestore(&fdir->ctx_lock, flags);
set_bit(ICE_FD_VF_FLUSH_CTX, pf->state);
ice_service_task_schedule(pf);
}
/**
* ice_vc_fdir_irq_handler - ctrl_vsi Rx queue interrupt handler
* @ctrl_vsi: pointer to a VF's CTRL VSI
* @rx_desc: pointer to FDIR Rx queue descriptor
*/
void
ice_vc_fdir_irq_handler(struct ice_vsi *ctrl_vsi,
union ice_32b_rx_flex_desc *rx_desc)
{
struct ice_pf *pf = ctrl_vsi->back;
struct ice_vf_fdir_ctx *ctx_done;
struct ice_vf_fdir_ctx *ctx_irq;
struct ice_vf_fdir *fdir;
unsigned long flags;
struct device *dev;
struct ice_vf *vf;
int ret;
vf = &pf->vf[ctrl_vsi->vf_id];
fdir = &vf->fdir;
ctx_done = &fdir->ctx_done;
ctx_irq = &fdir->ctx_irq;
dev = ice_pf_to_dev(pf);
spin_lock_irqsave(&fdir->ctx_lock, flags);
if (!(ctx_irq->flags & ICE_VF_FDIR_CTX_VALID)) {
spin_unlock_irqrestore(&fdir->ctx_lock, flags);
WARN_ON_ONCE(1);
return;
}
ctx_irq->flags &= ~ICE_VF_FDIR_CTX_VALID;
ctx_done->flags |= ICE_VF_FDIR_CTX_VALID;
ctx_done->conf = ctx_irq->conf;
ctx_done->stat = ICE_FDIR_CTX_IRQ;
ctx_done->v_opcode = ctx_irq->v_opcode;
memcpy(&ctx_done->rx_desc, rx_desc, sizeof(*rx_desc));
spin_unlock_irqrestore(&fdir->ctx_lock, flags);
ret = del_timer(&ctx_irq->rx_tmr);
if (!ret)
dev_err(dev, "VF %d: Unexpected inactive timer!\n", vf->vf_id);
set_bit(ICE_FD_VF_FLUSH_CTX, pf->state);
ice_service_task_schedule(pf);
}
/**
* ice_vf_fdir_dump_info - dump FDIR information for diagnosis
* @vf: pointer to the VF info
*/
static void ice_vf_fdir_dump_info(struct ice_vf *vf)
{
struct ice_vsi *vf_vsi;
u32 fd_size, fd_cnt;
struct device *dev;
struct ice_pf *pf;
struct ice_hw *hw;
u16 vsi_num;
pf = vf->pf;
hw = &pf->hw;
dev = ice_pf_to_dev(pf);
vf_vsi = pf->vsi[vf->lan_vsi_idx];
vsi_num = ice_get_hw_vsi_num(hw, vf_vsi->idx);
fd_size = rd32(hw, VSIQF_FD_SIZE(vsi_num));
fd_cnt = rd32(hw, VSIQF_FD_CNT(vsi_num));
dev_dbg(dev, "VF %d: space allocated: guar:0x%x, be:0x%x, space consumed: guar:0x%x, be:0x%x",
vf->vf_id,
(fd_size & VSIQF_FD_CNT_FD_GCNT_M) >> VSIQF_FD_CNT_FD_GCNT_S,
(fd_size & VSIQF_FD_CNT_FD_BCNT_M) >> VSIQF_FD_CNT_FD_BCNT_S,
(fd_cnt & VSIQF_FD_CNT_FD_GCNT_M) >> VSIQF_FD_CNT_FD_GCNT_S,
(fd_cnt & VSIQF_FD_CNT_FD_BCNT_M) >> VSIQF_FD_CNT_FD_BCNT_S);
}
/**
* ice_vf_verify_rx_desc - verify received FDIR programming status descriptor
* @vf: pointer to the VF info
* @ctx: FDIR context info for post processing
* @status: virtchnl FDIR program status
*
* Return: 0 on success, and other on error.
*/
static int
ice_vf_verify_rx_desc(struct ice_vf *vf, struct ice_vf_fdir_ctx *ctx,
enum virtchnl_fdir_prgm_status *status)
{
struct device *dev = ice_pf_to_dev(vf->pf);
u32 stat_err, error, prog_id;
int ret;
stat_err = le16_to_cpu(ctx->rx_desc.wb.status_error0);
if (((stat_err & ICE_FXD_FLTR_WB_QW1_DD_M) >>
ICE_FXD_FLTR_WB_QW1_DD_S) != ICE_FXD_FLTR_WB_QW1_DD_YES) {
*status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
dev_err(dev, "VF %d: Desc Done not set\n", vf->vf_id);
ret = -EINVAL;
goto err_exit;
}
prog_id = (stat_err & ICE_FXD_FLTR_WB_QW1_PROG_ID_M) >>
ICE_FXD_FLTR_WB_QW1_PROG_ID_S;
if (prog_id == ICE_FXD_FLTR_WB_QW1_PROG_ADD &&
ctx->v_opcode != VIRTCHNL_OP_ADD_FDIR_FILTER) {
dev_err(dev, "VF %d: Desc show add, but ctx not",
vf->vf_id);
*status = VIRTCHNL_FDIR_FAILURE_RULE_INVALID;
ret = -EINVAL;
goto err_exit;
}
if (prog_id == ICE_FXD_FLTR_WB_QW1_PROG_DEL &&
ctx->v_opcode != VIRTCHNL_OP_DEL_FDIR_FILTER) {
dev_err(dev, "VF %d: Desc show del, but ctx not",
vf->vf_id);
*status = VIRTCHNL_FDIR_FAILURE_RULE_INVALID;
ret = -EINVAL;
goto err_exit;
}
error = (stat_err & ICE_FXD_FLTR_WB_QW1_FAIL_M) >>
ICE_FXD_FLTR_WB_QW1_FAIL_S;
if (error == ICE_FXD_FLTR_WB_QW1_FAIL_YES) {
if (prog_id == ICE_FXD_FLTR_WB_QW1_PROG_ADD) {
dev_err(dev, "VF %d, Failed to add FDIR rule due to no space in the table",
vf->vf_id);
*status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
} else {
dev_err(dev, "VF %d, Failed to remove FDIR rule, attempt to remove non-existent entry",
vf->vf_id);
*status = VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST;
}
ret = -EINVAL;
goto err_exit;
}
error = (stat_err & ICE_FXD_FLTR_WB_QW1_FAIL_PROF_M) >>
ICE_FXD_FLTR_WB_QW1_FAIL_PROF_S;
if (error == ICE_FXD_FLTR_WB_QW1_FAIL_PROF_YES) {
dev_err(dev, "VF %d: Profile matching error", vf->vf_id);
*status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
ret = -EINVAL;
goto err_exit;
}
*status = VIRTCHNL_FDIR_SUCCESS;
return 0;
err_exit:
ice_vf_fdir_dump_info(vf);
return ret;
}
/**
* ice_vc_add_fdir_fltr_post
* @vf: pointer to the VF structure
* @ctx: FDIR context info for post processing
* @status: virtchnl FDIR program status
* @success: true implies success, false implies failure
*
* Post process for flow director add command. If success, then do post process
* and send back success msg by virtchnl. Otherwise, do context reversion and
* send back failure msg by virtchnl.
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_add_fdir_fltr_post(struct ice_vf *vf, struct ice_vf_fdir_ctx *ctx,
enum virtchnl_fdir_prgm_status status,
bool success)
{
struct virtchnl_fdir_fltr_conf *conf = ctx->conf;
struct device *dev = ice_pf_to_dev(vf->pf);
enum virtchnl_status_code v_ret;
struct virtchnl_fdir_add *resp;
int ret, len, is_tun;
v_ret = VIRTCHNL_STATUS_SUCCESS;
len = sizeof(*resp);
resp = kzalloc(len, GFP_KERNEL);
if (!resp) {
len = 0;
v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
dev_dbg(dev, "VF %d: Alloc resp buf fail", vf->vf_id);
goto err_exit;
}
if (!success)
goto err_exit;
is_tun = 0;
resp->status = status;
resp->flow_id = conf->flow_id;
vf->fdir.fdir_fltr_cnt[conf->input.flow_type][is_tun]++;
ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
(u8 *)resp, len);
kfree(resp);
dev_dbg(dev, "VF %d: flow_id:0x%X, FDIR %s success!\n",
vf->vf_id, conf->flow_id,
(ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER) ?
"add" : "del");
return ret;
err_exit:
if (resp)
resp->status = status;
ice_vc_fdir_remove_entry(vf, conf, conf->flow_id);
devm_kfree(dev, conf);
ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
(u8 *)resp, len);
kfree(resp);
return ret;
}
/**
* ice_vc_del_fdir_fltr_post
* @vf: pointer to the VF structure
* @ctx: FDIR context info for post processing
* @status: virtchnl FDIR program status
* @success: true implies success, false implies failure
*
* Post process for flow director del command. If success, then do post process
* and send back success msg by virtchnl. Otherwise, do context reversion and
* send back failure msg by virtchnl.
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_del_fdir_fltr_post(struct ice_vf *vf, struct ice_vf_fdir_ctx *ctx,
enum virtchnl_fdir_prgm_status status,
bool success)
{
struct virtchnl_fdir_fltr_conf *conf = ctx->conf;
struct device *dev = ice_pf_to_dev(vf->pf);
enum virtchnl_status_code v_ret;
struct virtchnl_fdir_del *resp;
int ret, len, is_tun;
v_ret = VIRTCHNL_STATUS_SUCCESS;
len = sizeof(*resp);
resp = kzalloc(len, GFP_KERNEL);
if (!resp) {
len = 0;
v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
dev_dbg(dev, "VF %d: Alloc resp buf fail", vf->vf_id);
goto err_exit;
}
if (!success)
goto err_exit;
is_tun = 0;
resp->status = status;
ice_vc_fdir_remove_entry(vf, conf, conf->flow_id);
vf->fdir.fdir_fltr_cnt[conf->input.flow_type][is_tun]--;
ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
(u8 *)resp, len);
kfree(resp);
dev_dbg(dev, "VF %d: flow_id:0x%X, FDIR %s success!\n",
vf->vf_id, conf->flow_id,
(ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER) ?
"add" : "del");
devm_kfree(dev, conf);
return ret;
err_exit:
if (resp)
resp->status = status;
if (success)
devm_kfree(dev, conf);
ret = ice_vc_send_msg_to_vf(vf, ctx->v_opcode, v_ret,
(u8 *)resp, len);
kfree(resp);
return ret;
}
/**
* ice_flush_fdir_ctx
* @pf: pointer to the PF structure
*
* Flush all the pending event on ctx_done list and process them.
*/
void ice_flush_fdir_ctx(struct ice_pf *pf)
{
int i;
if (!test_and_clear_bit(ICE_FD_VF_FLUSH_CTX, pf->state))
return;
ice_for_each_vf(pf, i) {
struct device *dev = ice_pf_to_dev(pf);
enum virtchnl_fdir_prgm_status status;
struct ice_vf *vf = &pf->vf[i];
struct ice_vf_fdir_ctx *ctx;
unsigned long flags;
int ret;
if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
continue;
if (vf->ctrl_vsi_idx == ICE_NO_VSI)
continue;
ctx = &vf->fdir.ctx_done;
spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
if (!(ctx->flags & ICE_VF_FDIR_CTX_VALID)) {
spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
continue;
}
spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
WARN_ON(ctx->stat == ICE_FDIR_CTX_READY);
if (ctx->stat == ICE_FDIR_CTX_TIMEOUT) {
status = VIRTCHNL_FDIR_FAILURE_RULE_TIMEOUT;
dev_err(dev, "VF %d: ctrl_vsi irq timeout\n",
vf->vf_id);
goto err_exit;
}
ret = ice_vf_verify_rx_desc(vf, ctx, &status);
if (ret)
goto err_exit;
if (ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER)
ice_vc_add_fdir_fltr_post(vf, ctx, status, true);
else if (ctx->v_opcode == VIRTCHNL_OP_DEL_FDIR_FILTER)
ice_vc_del_fdir_fltr_post(vf, ctx, status, true);
else
dev_err(dev, "VF %d: Unsupported opcode\n", vf->vf_id);
spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
ctx->flags &= ~ICE_VF_FDIR_CTX_VALID;
spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
continue;
err_exit:
if (ctx->v_opcode == VIRTCHNL_OP_ADD_FDIR_FILTER)
ice_vc_add_fdir_fltr_post(vf, ctx, status, false);
else if (ctx->v_opcode == VIRTCHNL_OP_DEL_FDIR_FILTER)
ice_vc_del_fdir_fltr_post(vf, ctx, status, false);
else
dev_err(dev, "VF %d: Unsupported opcode\n", vf->vf_id);
spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
ctx->flags &= ~ICE_VF_FDIR_CTX_VALID;
spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
}
}
/**
* ice_vc_fdir_set_irq_ctx - set FDIR context info for later IRQ handler
* @vf: pointer to the VF structure
* @conf: FDIR configuration for each filter
* @v_opcode: virtual channel operation code
*
* Return: 0 on success, and other on error.
*/
static int
ice_vc_fdir_set_irq_ctx(struct ice_vf *vf, struct virtchnl_fdir_fltr_conf *conf,
enum virtchnl_ops v_opcode)
{
struct device *dev = ice_pf_to_dev(vf->pf);
struct ice_vf_fdir_ctx *ctx;
unsigned long flags;
ctx = &vf->fdir.ctx_irq;
spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
if ((vf->fdir.ctx_irq.flags & ICE_VF_FDIR_CTX_VALID) ||
(vf->fdir.ctx_done.flags & ICE_VF_FDIR_CTX_VALID)) {
spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
dev_dbg(dev, "VF %d: Last request is still in progress\n",
vf->vf_id);
return -EBUSY;
}
ctx->flags |= ICE_VF_FDIR_CTX_VALID;
spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
ctx->conf = conf;
ctx->v_opcode = v_opcode;
ctx->stat = ICE_FDIR_CTX_READY;
timer_setup(&ctx->rx_tmr, ice_vf_fdir_timer, 0);
mod_timer(&ctx->rx_tmr, round_jiffies(msecs_to_jiffies(10) + jiffies));
return 0;
}
/**
* ice_vc_fdir_clear_irq_ctx - clear FDIR context info for IRQ handler
* @vf: pointer to the VF structure
*
* Return: 0 on success, and other on error.
*/
static void ice_vc_fdir_clear_irq_ctx(struct ice_vf *vf)
{
struct ice_vf_fdir_ctx *ctx = &vf->fdir.ctx_irq;
unsigned long flags;
del_timer(&ctx->rx_tmr);
spin_lock_irqsave(&vf->fdir.ctx_lock, flags);
ctx->flags &= ~ICE_VF_FDIR_CTX_VALID;
spin_unlock_irqrestore(&vf->fdir.ctx_lock, flags);
}
/**
* ice_vc_add_fdir_fltr - add a FDIR filter for VF by the msg buffer
* @vf: pointer to the VF info
* @msg: pointer to the msg buffer
*
* Return: 0 on success, and other on error.
*/
int ice_vc_add_fdir_fltr(struct ice_vf *vf, u8 *msg)
{
struct virtchnl_fdir_add *fltr = (struct virtchnl_fdir_add *)msg;
struct virtchnl_fdir_add *stat = NULL;
struct virtchnl_fdir_fltr_conf *conf;
enum virtchnl_status_code v_ret;
struct device *dev;
struct ice_pf *pf;
int is_tun = 0;
int len = 0;
int ret;
pf = vf->pf;
dev = ice_pf_to_dev(pf);
ret = ice_vc_fdir_param_check(vf, fltr->vsi_id);
if (ret) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
dev_dbg(dev, "Parameter check for VF %d failed\n", vf->vf_id);
goto err_exit;
}
ret = ice_vf_start_ctrl_vsi(vf);
if (ret && (ret != -EEXIST)) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
dev_err(dev, "Init FDIR for VF %d failed, ret:%d\n",
vf->vf_id, ret);
goto err_exit;
}
stat = kzalloc(sizeof(*stat), GFP_KERNEL);
if (!stat) {
v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
dev_dbg(dev, "Alloc stat for VF %d failed\n", vf->vf_id);
goto err_exit;
}
conf = devm_kzalloc(dev, sizeof(*conf), GFP_KERNEL);
if (!conf) {
v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
dev_dbg(dev, "Alloc conf for VF %d failed\n", vf->vf_id);
goto err_exit;
}
len = sizeof(*stat);
ret = ice_vc_validate_fdir_fltr(vf, fltr, conf);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_INVALID;
dev_dbg(dev, "Invalid FDIR filter from VF %d\n", vf->vf_id);
goto err_free_conf;
}
if (fltr->validate_only) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_SUCCESS;
devm_kfree(dev, conf);
ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_FDIR_FILTER,
v_ret, (u8 *)stat, len);
goto exit;
}
ret = ice_vc_fdir_config_input_set(vf, fltr, conf, is_tun);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_CONFLICT;
dev_err(dev, "VF %d: FDIR input set configure failed, ret:%d\n",
vf->vf_id, ret);
goto err_free_conf;
}
ret = ice_vc_fdir_is_dup_fltr(vf, conf);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_EXIST;
dev_dbg(dev, "VF %d: duplicated FDIR rule detected\n",
vf->vf_id);
goto err_free_conf;
}
ret = ice_vc_fdir_insert_entry(vf, conf, &conf->flow_id);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
dev_dbg(dev, "VF %d: insert FDIR list failed\n", vf->vf_id);
goto err_free_conf;
}
ret = ice_vc_fdir_set_irq_ctx(vf, conf, VIRTCHNL_OP_ADD_FDIR_FILTER);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
dev_dbg(dev, "VF %d: set FDIR context failed\n", vf->vf_id);
goto err_free_conf;
}
ret = ice_vc_fdir_write_fltr(vf, conf, true, is_tun);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
dev_err(dev, "VF %d: writing FDIR rule failed, ret:%d\n",
vf->vf_id, ret);
goto err_rem_entry;
}
exit:
kfree(stat);
return ret;
err_rem_entry:
ice_vc_fdir_clear_irq_ctx(vf);
ice_vc_fdir_remove_entry(vf, conf, conf->flow_id);
err_free_conf:
devm_kfree(dev, conf);
err_exit:
ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_FDIR_FILTER, v_ret,
(u8 *)stat, len);
kfree(stat);
return ret;
}
/**
* ice_vc_del_fdir_fltr - delete a FDIR filter for VF by the msg buffer
* @vf: pointer to the VF info
* @msg: pointer to the msg buffer
*
* Return: 0 on success, and other on error.
*/
int ice_vc_del_fdir_fltr(struct ice_vf *vf, u8 *msg)
{
struct virtchnl_fdir_del *fltr = (struct virtchnl_fdir_del *)msg;
struct virtchnl_fdir_del *stat = NULL;
struct virtchnl_fdir_fltr_conf *conf;
enum virtchnl_status_code v_ret;
struct device *dev;
struct ice_pf *pf;
int is_tun = 0;
int len = 0;
int ret;
pf = vf->pf;
dev = ice_pf_to_dev(pf);
ret = ice_vc_fdir_param_check(vf, fltr->vsi_id);
if (ret) {
v_ret = VIRTCHNL_STATUS_ERR_PARAM;
dev_dbg(dev, "Parameter check for VF %d failed\n", vf->vf_id);
goto err_exit;
}
stat = kzalloc(sizeof(*stat), GFP_KERNEL);
if (!stat) {
v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
dev_dbg(dev, "Alloc stat for VF %d failed\n", vf->vf_id);
goto err_exit;
}
len = sizeof(*stat);
conf = ice_vc_fdir_lookup_entry(vf, fltr->flow_id);
if (!conf) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NONEXIST;
dev_dbg(dev, "VF %d: FDIR invalid flow_id:0x%X\n",
vf->vf_id, fltr->flow_id);
goto err_exit;
}
/* Just return failure when ctrl_vsi idx is invalid */
if (vf->ctrl_vsi_idx == ICE_NO_VSI) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
dev_err(dev, "Invalid FDIR ctrl_vsi for VF %d\n", vf->vf_id);
goto err_exit;
}
ret = ice_vc_fdir_set_irq_ctx(vf, conf, VIRTCHNL_OP_DEL_FDIR_FILTER);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
dev_dbg(dev, "VF %d: set FDIR context failed\n", vf->vf_id);
goto err_exit;
}
ret = ice_vc_fdir_write_fltr(vf, conf, false, is_tun);
if (ret) {
v_ret = VIRTCHNL_STATUS_SUCCESS;
stat->status = VIRTCHNL_FDIR_FAILURE_RULE_NORESOURCE;
dev_err(dev, "VF %d: writing FDIR rule failed, ret:%d\n",
vf->vf_id, ret);
goto err_del_tmr;
}
kfree(stat);
return ret;
err_del_tmr:
ice_vc_fdir_clear_irq_ctx(vf);
err_exit:
ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_FDIR_FILTER, v_ret,
(u8 *)stat, len);
kfree(stat);
return ret;
}
/**
* ice_vf_fdir_init - init FDIR resource for VF
* @vf: pointer to the VF info
*/
void ice_vf_fdir_init(struct ice_vf *vf)
{
struct ice_vf_fdir *fdir = &vf->fdir;
idr_init(&fdir->fdir_rule_idr);
INIT_LIST_HEAD(&fdir->fdir_rule_list);
spin_lock_init(&fdir->ctx_lock);
fdir->ctx_irq.flags = 0;
fdir->ctx_done.flags = 0;
}
/**
* ice_vf_fdir_exit - destroy FDIR resource for VF
* @vf: pointer to the VF info
*/
void ice_vf_fdir_exit(struct ice_vf *vf)
{
ice_vc_fdir_flush_entry(vf);
idr_destroy(&vf->fdir.fdir_rule_idr);
ice_vc_fdir_rem_prof_all(vf);
ice_vc_fdir_free_prof_all(vf);
}
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