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path: root/drivers/net/ethernet/intel/ice/ice_flow.c
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Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_flow.c')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_flow.c269
1 files changed, 238 insertions, 31 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_flow.c b/drivers/net/ethernet/intel/ice/ice_flow.c
index 6d5c939dc8a5..c9b6d0a84bd1 100644
--- a/drivers/net/ethernet/intel/ice/ice_flow.c
+++ b/drivers/net/ethernet/intel/ice/ice_flow.c
@@ -5,6 +5,38 @@
#include "ice_flow.h"
#include <net/gre.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_IPV6_PRE32_ADDR 4
+#define ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR 6
+#define ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR 8
+#define ICE_FLOW_FLD_SZ_IPV4_ID 2
+#define ICE_FLOW_FLD_SZ_IPV6_ID 4
+#define ICE_FLOW_FLD_SZ_IP_CHKSUM 2
+#define ICE_FLOW_FLD_SZ_TCP_CHKSUM 2
+#define ICE_FLOW_FLD_SZ_UDP_CHKSUM 2
+#define ICE_FLOW_FLD_SZ_SCTP_CHKSUM 4
+#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
+#define ICE_FLOW_FLD_SZ_GTP_TEID 4
+#define ICE_FLOW_FLD_SZ_GTP_QFI 2
+#define ICE_FLOW_FLD_SZ_PFCP_SEID 8
+#define ICE_FLOW_FLD_SZ_ESP_SPI 4
+#define ICE_FLOW_FLD_SZ_AH_SPI 4
+#define ICE_FLOW_FLD_SZ_NAT_T_ESP_SPI 4
+#define ICE_FLOW_FLD_SZ_L2TPV2_SESS_ID 2
+#define ICE_FLOW_FLD_SZ_L2TPV2_LEN_SESS_ID 2
+
/* Describe properties of a protocol header field */
struct ice_flow_field_info {
enum ice_flow_seg_hdr hdr;
@@ -20,6 +52,7 @@ struct ice_flow_field_info {
.mask = 0, \
}
+/* QFI: 6-bit field in GTP-U PDU Session Container (3GPP TS 38.415) */
#define ICE_FLOW_FLD_INFO_MSK(_hdr, _offset_bytes, _size_bytes, _mask) { \
.hdr = _hdr, \
.off = (_offset_bytes) * BITS_PER_BYTE, \
@@ -61,7 +94,33 @@ struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
/* ICE_FLOW_FIELD_IDX_IPV6_SA */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8, sizeof(struct in6_addr)),
/* ICE_FLOW_FIELD_IDX_IPV6_DA */
- ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, sizeof(struct in6_addr)),
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24, ICE_FLOW_FLD_SZ_IPV6_ADDR),
+ /* ICE_FLOW_FIELD_IDX_IPV4_CHKSUM */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV4, 10, ICE_FLOW_FLD_SZ_IP_CHKSUM),
+ /* ICE_FLOW_FIELD_IDX_IPV4_FRAG */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV_FRAG, 4,
+ ICE_FLOW_FLD_SZ_IPV4_ID),
+ /* ICE_FLOW_FIELD_IDX_IPV6_FRAG */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV_FRAG, 4,
+ ICE_FLOW_FLD_SZ_IPV6_ID),
+ /* ICE_FLOW_FIELD_IDX_IPV6_PRE32_SA */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8,
+ ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR),
+ /* ICE_FLOW_FIELD_IDX_IPV6_PRE32_DA */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24,
+ ICE_FLOW_FLD_SZ_IPV6_PRE32_ADDR),
+ /* ICE_FLOW_FIELD_IDX_IPV6_PRE48_SA */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8,
+ ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR),
+ /* ICE_FLOW_FIELD_IDX_IPV6_PRE48_DA */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24,
+ ICE_FLOW_FLD_SZ_IPV6_PRE48_ADDR),
+ /* ICE_FLOW_FIELD_IDX_IPV6_PRE64_SA */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 8,
+ ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR),
+ /* ICE_FLOW_FIELD_IDX_IPV6_PRE64_DA */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_IPV6, 24,
+ ICE_FLOW_FLD_SZ_IPV6_PRE64_ADDR),
/* Transport */
/* ICE_FLOW_FIELD_IDX_TCP_SRC_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 0, sizeof(__be16)),
@@ -76,7 +135,14 @@ struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
/* ICE_FLOW_FIELD_IDX_SCTP_DST_PORT */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 2, sizeof(__be16)),
/* ICE_FLOW_FIELD_IDX_TCP_FLAGS */
- ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, 1),
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 13, ICE_FLOW_FLD_SZ_TCP_FLAGS),
+ /* ICE_FLOW_FIELD_IDX_TCP_CHKSUM */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_TCP, 16, ICE_FLOW_FLD_SZ_TCP_CHKSUM),
+ /* ICE_FLOW_FIELD_IDX_UDP_CHKSUM */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_UDP, 6, ICE_FLOW_FLD_SZ_UDP_CHKSUM),
+ /* ICE_FLOW_FIELD_IDX_SCTP_CHKSUM */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_SCTP, 8,
+ ICE_FLOW_FLD_SZ_SCTP_CHKSUM),
/* ARP */
/* ICE_FLOW_FIELD_IDX_ARP_SIP */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_ARP, 14, sizeof(struct in_addr)),
@@ -108,9 +174,17 @@ struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_EH, 22, sizeof(__be16),
0x3f00),
/* ICE_FLOW_FIELD_IDX_GTPU_UP_TEID */
- ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_UP, 12, sizeof(__be32)),
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_UP, 12,
+ ICE_FLOW_FLD_SZ_GTP_TEID),
+ /* ICE_FLOW_FIELD_IDX_GTPU_UP_QFI */
+ ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_UP, 22,
+ ICE_FLOW_FLD_SZ_GTP_QFI, 0x3f00),
/* ICE_FLOW_FIELD_IDX_GTPU_DWN_TEID */
- ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_DWN, 12, sizeof(__be32)),
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_GTPU_DWN, 12,
+ ICE_FLOW_FLD_SZ_GTP_TEID),
+ /* ICE_FLOW_FIELD_IDX_GTPU_DWN_QFI */
+ ICE_FLOW_FLD_INFO_MSK(ICE_FLOW_SEG_HDR_GTPU_DWN, 22,
+ ICE_FLOW_FLD_SZ_GTP_QFI, 0x3f00),
/* PPPoE */
/* ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID */
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_PPPOE, 2, sizeof(__be16)),
@@ -128,7 +202,16 @@ struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_AH, 4, sizeof(__be32)),
/* NAT_T_ESP */
/* ICE_FLOW_FIELD_IDX_NAT_T_ESP_SPI */
- ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NAT_T_ESP, 8, sizeof(__be32)),
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_NAT_T_ESP, 8,
+ ICE_FLOW_FLD_SZ_NAT_T_ESP_SPI),
+ /* L2TPV2 */
+ /* ICE_FLOW_FIELD_IDX_L2TPV2_SESS_ID */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV2, 12,
+ ICE_FLOW_FLD_SZ_L2TPV2_SESS_ID),
+ /* L2TPV2_LEN */
+ /* ICE_FLOW_FIELD_IDX_L2TPV2_LEN_SESS_ID */
+ ICE_FLOW_FLD_INFO(ICE_FLOW_SEG_HDR_L2TPV2, 14,
+ ICE_FLOW_FLD_SZ_L2TPV2_LEN_SESS_ID),
};
/* Bitmaps indicating relevant packet types for a particular protocol header
@@ -137,9 +220,9 @@ struct ice_flow_field_info ice_flds_info[ICE_FLOW_FIELD_IDX_MAX] = {
*/
static const u32 ice_ptypes_mac_ofos[] = {
0xFDC00846, 0xBFBF7F7E, 0xF70001DF, 0xFEFDFDFB,
- 0x0000077E, 0x00000000, 0x00000000, 0x00000000,
- 0x00400000, 0x03FFF000, 0x7FFFFFE0, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x0000077E, 0x000003FF, 0x00000000, 0x00000000,
+ 0x00400000, 0x03FFF000, 0xFFFFFFE0, 0x00000707,
+ 0xFFFFF000, 0x000003FF, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -162,10 +245,10 @@ static const u32 ice_ptypes_macvlan_il[] = {
* include IPv4 other PTYPEs
*/
static const u32 ice_ptypes_ipv4_ofos[] = {
- 0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
+ 0x1D800000, 0xBFBF7800, 0x000001DF, 0x00000000,
0x00000000, 0x00000155, 0x00000000, 0x00000000,
- 0x00000000, 0x000FC000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x000FC000, 0x000002A0, 0x00000000,
+ 0x00015000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -176,10 +259,10 @@ static const u32 ice_ptypes_ipv4_ofos[] = {
* IPv4 other PTYPEs
*/
static const u32 ice_ptypes_ipv4_ofos_all[] = {
- 0x1DC00000, 0x04000800, 0x00000000, 0x00000000,
+ 0x1D800000, 0x27BF7800, 0x00000000, 0x00000000,
0x00000000, 0x00000155, 0x00000000, 0x00000000,
- 0x00000000, 0x000FC000, 0x83E0F800, 0x00000101,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x000FC000, 0x83E0FAA0, 0x00000101,
+ 0x3FFD5000, 0x00000000, 0x02FBEFBC, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -191,7 +274,7 @@ static const u32 ice_ptypes_ipv4_il[] = {
0xE0000000, 0xB807700E, 0x80000003, 0xE01DC03B,
0x0000000E, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x001FF800, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0xC0FC0000, 0x0000000F, 0xBC0BC0BC, 0x00000BC0,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -202,10 +285,10 @@ static const u32 ice_ptypes_ipv4_il[] = {
* include IPv6 other PTYPEs
*/
static const u32 ice_ptypes_ipv6_ofos[] = {
- 0x00000000, 0x00000000, 0x77000000, 0x10002000,
+ 0x00000000, 0x00000000, 0x76000000, 0x10002000,
0x00000000, 0x000002AA, 0x00000000, 0x00000000,
- 0x00000000, 0x03F00000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x03F00000, 0x00000540, 0x00000000,
+ 0x0002A000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -216,10 +299,10 @@ static const u32 ice_ptypes_ipv6_ofos[] = {
* IPv6 other PTYPEs
*/
static const u32 ice_ptypes_ipv6_ofos_all[] = {
- 0x00000000, 0x00000000, 0x77000000, 0x10002000,
- 0x00000000, 0x000002AA, 0x00000000, 0x00000000,
- 0x00080F00, 0x03F00000, 0x7C1F0000, 0x00000206,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0x76000000, 0xFEFDE000,
+ 0x0000077E, 0x000002AA, 0x00000000, 0x00000000,
+ 0x00000000, 0x03F00000, 0x7C1F0540, 0x00000206,
+ 0xC002A000, 0x000003FF, 0xBC000000, 0x0002FBEF,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -231,7 +314,7 @@ static const u32 ice_ptypes_ipv6_il[] = {
0x00000000, 0x03B80770, 0x000001DC, 0x0EE00000,
0x00000770, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x7FE00000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x3F000000, 0x000003F0, 0x02F02F00, 0x0002F02F,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -304,8 +387,8 @@ static const u32 ice_ptypes_ipv6_il_no_l4[] = {
static const u32 ice_ptypes_udp_il[] = {
0x81000000, 0x20204040, 0x04000010, 0x80810102,
0x00000040, 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00410000, 0x90842000, 0x00000007,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00410000, 0x908427E0, 0x00000007,
+ 0x0413F000, 0x00000041, 0x10410410, 0x00004104,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -317,7 +400,7 @@ static const u32 ice_ptypes_tcp_il[] = {
0x04000000, 0x80810102, 0x10000040, 0x02040408,
0x00000102, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00820000, 0x21084000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x08200000, 0x00000082, 0x20820820, 0x00008208,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -329,7 +412,7 @@ static const u32 ice_ptypes_sctp_il[] = {
0x08000000, 0x01020204, 0x20000081, 0x04080810,
0x00000204, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x01040000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x10400000, 0x00000104, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -353,7 +436,7 @@ static const u32 ice_ptypes_icmp_il[] = {
0x00000000, 0x02040408, 0x40000102, 0x08101020,
0x00000408, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x42108000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x20800000, 0x00000208, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -365,7 +448,7 @@ static const u32 ice_ptypes_gre_of[] = {
0x00000000, 0xBFBF7800, 0x000001DF, 0xFEFDE000,
0x0000017E, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x00000000, 0xBEFBEFBC, 0x0002FBEF,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -374,7 +457,7 @@ static const u32 ice_ptypes_gre_of[] = {
/* Packet types for packets with an Innermost/Last MAC header */
static const u32 ice_ptypes_mac_il[] = {
- 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+ 0x00000000, 0x20000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -388,7 +471,7 @@ static const u32 ice_ptypes_mac_il[] = {
static const u32 ice_ptypes_gtpc[] = {
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
- 0x00000000, 0x00000000, 0x00000180, 0x00000000,
+ 0x00000000, 0x00000000, 0x000001E0, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
0x00000000, 0x00000000, 0x00000000, 0x00000000,
@@ -2325,6 +2408,130 @@ static void ice_rss_set_symm(struct ice_hw *hw, struct ice_flow_prof *prof)
}
/**
+ * ice_rss_cfg_raw_symm - Configure symmetric RSS for a raw parser profile
+ * @hw: device HW
+ * @prof: parser profile describing extracted FV (field vector) entries
+ * @prof_id: RSS profile identifier used to program symmetry registers
+ *
+ * The routine scans the parser profile's FV entries and looks for
+ * direction-sensitive pairs (L3 src/dst, L4 src/dst). When a pair is found,
+ * it programs XOR-based symmetry so that flows hash identically regardless
+ * of packet direction. This preserves CPU affinity for the same 5-tuple.
+ *
+ * Notes:
+ * - The size of each logical field (IPv4/IPv6 address, L4 port) is expressed
+ * in units of ICE_FLOW_FV_EXTRACT_SZ so we can step across fv[] correctly.
+ * - We guard against out-of-bounds access before looking at fv[i + len].
+ */
+static void ice_rss_cfg_raw_symm(struct ice_hw *hw,
+ const struct ice_parser_profile *prof,
+ u64 prof_id)
+{
+ for (size_t i = 0; i < prof->fv_num; i++) {
+ u8 proto_id = prof->fv[i].proto_id;
+ u16 src_off = 0, dst_off = 0;
+ size_t src_idx, dst_idx;
+ bool is_matched = false;
+ unsigned int len = 0;
+
+ switch (proto_id) {
+ /* IPv4 address pairs (outer/inner variants) */
+ case ICE_PROT_IPV4_OF_OR_S:
+ case ICE_PROT_IPV4_IL:
+ case ICE_PROT_IPV4_IL_IL:
+ len = ICE_FLOW_FLD_SZ_IPV4_ADDR /
+ ICE_FLOW_FV_EXTRACT_SZ;
+ src_off = ICE_FLOW_FIELD_IPV4_SRC_OFFSET;
+ dst_off = ICE_FLOW_FIELD_IPV4_DST_OFFSET;
+ break;
+
+ /* IPv6 address pairs (outer/inner variants) */
+ case ICE_PROT_IPV6_OF_OR_S:
+ case ICE_PROT_IPV6_IL:
+ case ICE_PROT_IPV6_IL_IL:
+ len = ICE_FLOW_FLD_SZ_IPV6_ADDR /
+ ICE_FLOW_FV_EXTRACT_SZ;
+ src_off = ICE_FLOW_FIELD_IPV6_SRC_OFFSET;
+ dst_off = ICE_FLOW_FIELD_IPV6_DST_OFFSET;
+ break;
+
+ /* L4 port pairs (TCP/UDP/SCTP) */
+ case ICE_PROT_TCP_IL:
+ case ICE_PROT_UDP_IL_OR_S:
+ case ICE_PROT_SCTP_IL:
+ len = ICE_FLOW_FLD_SZ_PORT / ICE_FLOW_FV_EXTRACT_SZ;
+ src_off = ICE_FLOW_FIELD_SRC_PORT_OFFSET;
+ dst_off = ICE_FLOW_FIELD_DST_PORT_OFFSET;
+ break;
+
+ default:
+ continue;
+ }
+
+ /* Bounds check before accessing fv[i + len]. */
+ if (i + len >= prof->fv_num)
+ continue;
+
+ /* Verify src/dst pairing for this protocol id. */
+ is_matched = prof->fv[i].offset == src_off &&
+ prof->fv[i + len].proto_id == proto_id &&
+ prof->fv[i + len].offset == dst_off;
+ if (!is_matched)
+ continue;
+
+ /* Program XOR symmetry for this field pair. */
+ src_idx = i;
+ dst_idx = i + len;
+
+ ice_rss_config_xor(hw, prof_id, src_idx, dst_idx, len);
+
+ /* Skip over the pair we just handled; the loop's ++i advances
+ * one more element, hence the --i after the jump.
+ */
+ i += (2 * len);
+ /* not strictly needed; keeps static analyzers happy */
+ if (i == 0)
+ break;
+ --i;
+ }
+}
+
+/* Max registers index per packet profile */
+#define ICE_SYMM_REG_INDEX_MAX 6
+
+/**
+ * ice_rss_update_raw_symm - update symmetric hash configuration
+ * for raw pattern
+ * @hw: pointer to the hardware structure
+ * @cfg: configure parameters for raw pattern
+ * @id: profile tracking ID
+ *
+ * Update symmetric hash configuration for raw pattern if required.
+ * Otherwise only clear to default.
+ */
+void
+ice_rss_update_raw_symm(struct ice_hw *hw,
+ struct ice_rss_raw_cfg *cfg, u64 id)
+{
+ struct ice_prof_map *map;
+ u8 prof_id, m;
+
+ mutex_lock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock);
+ map = ice_search_prof_id(hw, ICE_BLK_RSS, id);
+ if (map)
+ prof_id = map->prof_id;
+ mutex_unlock(&hw->blk[ICE_BLK_RSS].es.prof_map_lock);
+ if (!map)
+ return;
+ /* clear to default */
+ for (m = 0; m < ICE_SYMM_REG_INDEX_MAX; m++)
+ wr32(hw, GLQF_HSYMM(prof_id, m), 0);
+
+ if (cfg->symm)
+ ice_rss_cfg_raw_symm(hw, &cfg->prof, prof_id);
+}
+
+/**
* ice_add_rss_cfg_sync - add an RSS configuration
* @hw: pointer to the hardware structure
* @vsi_handle: software VSI handle
generated by cgit (git 2.34.1) at 2025-12-04 15:01:38 +0000