@@ -304,3 +304,42 @@ void ice_parser_destroy(struct ice_parser *psr)
devm_kfree(ice_hw_to_dev(psr->hw), psr);
}
+
+/**
+ * ice_parser_run - parse on a packet in binary and return the result
+ * @psr: pointer to a parser instance
+ * @pkt_buf: packet data
+ * @pkt_len: packet length
+ * @rslt: input/output parameter to save parser result.
+ */
+int ice_parser_run(struct ice_parser *psr, const u8 *pkt_buf,
+ int pkt_len, struct ice_parser_result *rslt)
+{
+ ice_parser_rt_reset(&psr->rt);
+ ice_parser_rt_pktbuf_set(&psr->rt, pkt_buf, pkt_len);
+
+ return ice_parser_rt_execute(&psr->rt, rslt);
+}
+
+/**
+ * ice_parser_result_dump - dump a parser result info
+ * @hw: pointer to the hardware structure
+ * @rslt: parser result info to dump
+ */
+void ice_parser_result_dump(struct ice_hw *hw, struct ice_parser_result *rslt)
+{
+ int i;
+
+ dev_info(ice_hw_to_dev(hw), "ptype = %d\n", rslt->ptype);
+ for (i = 0; i < rslt->po_num; i++)
+ dev_info(ice_hw_to_dev(hw), "proto = %d, offset = %d\n",
+ rslt->po[i].proto_id, rslt->po[i].offset);
+
+ dev_info(ice_hw_to_dev(hw), "flags_psr = 0x%016llx\n",
+ (unsigned long long)rslt->flags_psr);
+ dev_info(ice_hw_to_dev(hw), "flags_pkt = 0x%016llx\n",
+ (unsigned long long)rslt->flags_pkt);
+ dev_info(ice_hw_to_dev(hw), "flags_sw = 0x%04x\n", rslt->flags_sw);
+ dev_info(ice_hw_to_dev(hw), "flags_fd = 0x%04x\n", rslt->flags_fd);
+ dev_info(ice_hw_to_dev(hw), "flags_rss = 0x%04x\n", rslt->flags_rss);
+}
@@ -13,6 +13,7 @@
#include "ice_proto_grp.h"
#include "ice_flg_rd.h"
#include "ice_xlt_kb.h"
+#include "ice_parser_rt.h"
struct ice_parser {
struct ice_hw *hw; /* pointer to the hardware structure */
@@ -49,8 +50,31 @@ struct ice_parser {
struct ice_xlt_kb *xlt_kb_fd;
/* load data from section ICE_SID_XLT_KEY_BUILDER_RSS */
struct ice_xlt_kb *xlt_kb_rss;
+ struct ice_parser_rt rt; /* parser runtime */
};
int ice_parser_create(struct ice_hw *hw, struct ice_parser **psr);
void ice_parser_destroy(struct ice_parser *psr);
+
+struct ice_parser_proto_off {
+ u8 proto_id; /* hardware protocol ID */
+ u16 offset; /* offset where the protocol header start */
+};
+
+struct ice_parser_result {
+ u16 ptype; /* 16 bits hardware PTYPE */
+ /* protocol and header offset pairs */
+ struct ice_parser_proto_off po[16];
+ int po_num; /* number of pairs must <= 16 */
+ u64 flags_psr; /* 64 bits parser flags */
+ u64 flags_pkt; /* 64 bits packet flags */
+ u16 flags_sw; /* 16 bits key builder flag for SW */
+ u16 flags_acl; /* 16 bits key builder flag for ACL */
+ u16 flags_fd; /* 16 bits key builder flag for FD */
+ u16 flags_rss; /* 16 bits key builder flag for RSS */
+};
+
+int ice_parser_run(struct ice_parser *psr, const u8 *pkt_buf,
+ int pkt_len, struct ice_parser_result *rslt);
+void ice_parser_result_dump(struct ice_hw *hw, struct ice_parser_result *rslt);
#endif /* _ICE_PARSER_H_ */
new file mode 100644
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2018-2023 Intel Corporation */
+
+#include "ice_common.h"
+
+#define GPR_HB_IDX 64
+#define GPR_ERR_IDX 84
+#define GPR_FLG_IDX 104
+#define GPR_TSR_IDX 108
+#define GPR_NN_IDX 109
+#define GPR_HO_IDX 110
+#define GPR_NP_IDX 111
+
+static void _rt_tsr_set(struct ice_parser_rt *rt, u16 tsr)
+{
+ rt->gpr[GPR_TSR_IDX] = tsr;
+}
+
+static void _rt_ho_set(struct ice_parser_rt *rt, u16 ho)
+{
+ rt->gpr[GPR_HO_IDX] = ho;
+ memcpy(&rt->gpr[GPR_HB_IDX], &rt->pkt_buf[ho], 32);
+}
+
+static void _rt_np_set(struct ice_parser_rt *rt, u16 pc)
+{
+ rt->gpr[GPR_NP_IDX] = pc;
+}
+
+static void _rt_nn_set(struct ice_parser_rt *rt, u16 node)
+{
+ rt->gpr[GPR_NN_IDX] = node;
+}
+
+static void _rt_flag_set(struct ice_parser_rt *rt, int idx)
+{
+ int y = idx / 16;
+ int x = idx % 16;
+
+ rt->gpr[GPR_FLG_IDX + y] |= (u16)(1 << x);
+}
+
+/**
+ * ice_parser_rt_reset - reset the parser runtime
+ * @rt: pointer to the parser runtime
+ */
+void ice_parser_rt_reset(struct ice_parser_rt *rt)
+{
+ struct ice_parser *psr = rt->psr;
+ struct ice_metainit_item *mi = &psr->mi_table[0];
+ int i;
+
+ memset(rt, 0, sizeof(*rt));
+
+ _rt_tsr_set(rt, mi->tsr);
+ _rt_ho_set(rt, mi->ho);
+ _rt_np_set(rt, mi->pc);
+ _rt_nn_set(rt, mi->pg_rn);
+
+ rt->psr = psr;
+
+ for (i = 0; i < 64; i++) {
+ if ((mi->flags & (1ul << i)) != 0ul)
+ _rt_flag_set(rt, i);
+ }
+}
+
+/**
+ * ice_parser_rt_pktbuf_set - set a packet into parser runtime
+ * @rt: pointer to the parser runtime
+ * @pkt_buf: buffer with packet data
+ * @pkt_len: packet buffer length
+ */
+void ice_parser_rt_pktbuf_set(struct ice_parser_rt *rt, const u8 *pkt_buf,
+ int pkt_len)
+{
+ int len = min(ICE_PARSER_MAX_PKT_LEN, pkt_len);
+ u16 ho = rt->gpr[GPR_HO_IDX];
+
+ memcpy(rt->pkt_buf, pkt_buf, len);
+ rt->pkt_len = pkt_len;
+
+ memcpy(&rt->gpr[GPR_HB_IDX], &rt->pkt_buf[ho], 32);
+}
+
+/**
+ * ice_parser_rt_execute - parser execution routine
+ * @rt: pointer to the parser runtime
+ * @rslt: input/output parameter to save parser result
+ */
+int ice_parser_rt_execute(struct ice_parser_rt *rt,
+ struct ice_parser_result *rslt)
+{
+ return ICE_ERR_NOT_IMPL;
+}
new file mode 100644
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2018-2023 Intel Corporation */
+
+#ifndef _ICE_PARSER_RT_H_
+#define _ICE_PARSER_RT_H_
+
+struct ice_parser_ctx;
+
+#define ICE_PARSER_MAX_PKT_LEN 504
+#define ICE_PARSER_GPR_NUM 128
+
+struct ice_parser_rt {
+ struct ice_parser *psr;
+ u16 gpr[ICE_PARSER_GPR_NUM];
+ u8 pkt_buf[ICE_PARSER_MAX_PKT_LEN + 32];
+ u16 pkt_len;
+ u16 po;
+};
+
+void ice_parser_rt_reset(struct ice_parser_rt *rt);
+void ice_parser_rt_pktbuf_set(struct ice_parser_rt *rt, const u8 *pkt_buf,
+ int pkt_len);
+
+struct ice_parser_result;
+int ice_parser_rt_execute(struct ice_parser_rt *rt,
+ struct ice_parser_result *rslt);
+#endif /* _ICE_PARSER_RT_H_ */
Add parser runtime data struct ice_parser_rt. Add below APIs for parser runtime preparation: ice_parser_rt_reset ice_parser_rt_pkt_buf_set Add below API skeleton for parser runtime execution: ice_parser_rt_execute Signed-off-by: Junfeng Guo <junfeng.guo@intel.com> --- drivers/net/ethernet/intel/ice/ice_parser.c | 39 ++++++++ drivers/net/ethernet/intel/ice/ice_parser.h | 24 +++++ .../net/ethernet/intel/ice/ice_parser_rt.c | 95 +++++++++++++++++++ .../net/ethernet/intel/ice/ice_parser_rt.h | 27 ++++++ 4 files changed, 185 insertions(+) create mode 100644 drivers/net/ethernet/intel/ice/ice_parser_rt.c create mode 100644 drivers/net/ethernet/intel/ice/ice_parser_rt.h