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Date: Mon, 21 Aug 2023 16:14:31 +0800
From: Junfeng Guo <junfeng.guo@...el.com>
To: intel-wired-lan@...ts.osuosl.org
Cc: netdev@...r.kernel.org,
anthony.l.nguyen@...el.com,
jesse.brandeburg@...el.com,
qi.z.zhang@...el.com,
ivecera@...hat.com,
sridhar.samudrala@...el.com,
horms@...nel.org,
Junfeng Guo <junfeng.guo@...el.com>
Subject: [PATCH iwl-next v6 08/15] ice: init flag redirect table for parser
Parse DDP section ICE_SID_RXPARSER_FLAG_REDIR into an array of
ice_flag_rd_item.
Signed-off-by: Junfeng Guo <junfeng.guo@...el.com>
---
drivers/net/ethernet/intel/ice/ice_ddp.h | 1 +
drivers/net/ethernet/intel/ice/ice_flg_rd.c | 50 +++++++++++++++++++++
drivers/net/ethernet/intel/ice/ice_flg_rd.h | 23 ++++++++++
drivers/net/ethernet/intel/ice/ice_parser.c | 10 +++++
drivers/net/ethernet/intel/ice/ice_parser.h | 4 ++
5 files changed, 88 insertions(+)
create mode 100644 drivers/net/ethernet/intel/ice/ice_flg_rd.c
create mode 100644 drivers/net/ethernet/intel/ice/ice_flg_rd.h
diff --git a/drivers/net/ethernet/intel/ice/ice_ddp.h b/drivers/net/ethernet/intel/ice/ice_ddp.h
index da5dfeed3b1f..45beed8b4415 100644
--- a/drivers/net/ethernet/intel/ice/ice_ddp.h
+++ b/drivers/net/ethernet/intel/ice/ice_ddp.h
@@ -261,6 +261,7 @@ struct ice_meta_sect {
#define ICE_SID_CDID_KEY_BUILDER_PE 87
#define ICE_SID_CDID_REDIR_PE 88
+#define ICE_SID_RXPARSER_FLAG_REDIR 97
/* Label Metadata section IDs */
#define ICE_SID_LBL_FIRST 0x80000010
#define ICE_SID_LBL_RXPARSER_TMEM 0x80000018
diff --git a/drivers/net/ethernet/intel/ice/ice_flg_rd.c b/drivers/net/ethernet/intel/ice/ice_flg_rd.c
new file mode 100644
index 000000000000..9d5d66d0c773
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_flg_rd.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Intel Corporation */
+
+#include "ice_common.h"
+#include "ice_parser_util.h"
+
+/**
+ * ice_flg_rd_dump - dump a flag redirect item info
+ * @hw: pointer to the hardware structure
+ * @item: flag redirect item to dump
+ */
+void ice_flg_rd_dump(struct ice_hw *hw, struct ice_flg_rd_item *item)
+{
+ dev_info(ice_hw_to_dev(hw), "index = %d\n", item->idx);
+ dev_info(ice_hw_to_dev(hw), "expose = %d\n", item->expose);
+ dev_info(ice_hw_to_dev(hw), "intr_flg_id = %d\n", item->intr_flg_id);
+}
+
+/** The function parses a 8 bits Flag Redirect Table entry with below format:
+ * BIT 0: Expose (rdi->expose)
+ * BIT 1-6: Internal Flag ID (rdi->intr_flg_id)
+ * BIT 7: reserved
+ */
+static void _ice_flg_rd_parse_item(struct ice_hw *hw, u16 idx, void *item,
+ void *data, int size)
+{
+ struct ice_flg_rd_item *rdi = item;
+ u8 d8 = *(u8 *)data;
+
+ rdi->idx = idx;
+ rdi->expose = !!(d8 & ICE_RDI_EXP_M);
+ rdi->intr_flg_id = (u8)((d8 >> ICE_RDI_IFD_S) & ICE_RDI_IFD_M);
+
+ if (hw->debug_mask & ICE_DBG_PARSER)
+ ice_flg_rd_dump(hw, rdi);
+}
+
+/**
+ * ice_flg_rd_table_get - create a flag redirect table
+ * @hw: pointer to the hardware structure
+ */
+struct ice_flg_rd_item *ice_flg_rd_table_get(struct ice_hw *hw)
+{
+ return (struct ice_flg_rd_item *)
+ ice_parser_create_table(hw, ICE_SID_RXPARSER_FLAG_REDIR,
+ sizeof(struct ice_flg_rd_item),
+ ICE_FLG_RD_TABLE_SIZE,
+ ice_parser_sect_item_get,
+ _ice_flg_rd_parse_item, false);
+}
diff --git a/drivers/net/ethernet/intel/ice/ice_flg_rd.h b/drivers/net/ethernet/intel/ice/ice_flg_rd.h
new file mode 100644
index 000000000000..b3b4fd7a9002
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_flg_rd.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2023 Intel Corporation */
+
+#ifndef _ICE_FLG_RD_H_
+#define _ICE_FLG_RD_H_
+
+#define ICE_FLG_RD_TABLE_SIZE 64
+#define ICE_FLG_RDT_SIZE 64
+
+#define ICE_RDI_EXP_S 0
+#define ICE_RDI_EXP_M BITMAP_MASK(1)
+#define ICE_RDI_IFD_S 1
+#define ICE_RDI_IFD_M BITMAP_MASK(6)
+
+struct ice_flg_rd_item {
+ u16 idx;
+ bool expose;
+ u8 intr_flg_id;
+};
+
+void ice_flg_rd_dump(struct ice_hw *hw, struct ice_flg_rd_item *item);
+struct ice_flg_rd_item *ice_flg_rd_table_get(struct ice_hw *hw);
+#endif /* _ICE_FLG_RD_H_ */
diff --git a/drivers/net/ethernet/intel/ice/ice_parser.c b/drivers/net/ethernet/intel/ice/ice_parser.c
index 4da2d4c21bab..3c3f7d6bea52 100644
--- a/drivers/net/ethernet/intel/ice/ice_parser.c
+++ b/drivers/net/ethernet/intel/ice/ice_parser.c
@@ -68,6 +68,9 @@ void *ice_parser_sect_item_get(u32 sect_type, void *section,
case ICE_SID_RXPARSER_PROTO_GRP:
size = ICE_SID_RXPARSER_PROTO_GRP_ENTRY_SIZE;
break;
+ case ICE_SID_RXPARSER_FLAG_REDIR:
+ size = ICE_SID_RXPARSER_FLAG_REDIR_ENTRY_SIZE;
+ break;
default:
return NULL;
}
@@ -220,6 +223,12 @@ int ice_parser_create(struct ice_hw *hw, struct ice_parser **psr)
goto err;
}
+ p->flg_rd_table = ice_flg_rd_table_get(hw);
+ if (!p->flg_rd_table) {
+ status = -EINVAL;
+ goto err;
+ }
+
*psr = p;
return 0;
err:
@@ -244,6 +253,7 @@ void ice_parser_destroy(struct ice_parser *psr)
devm_kfree(ice_hw_to_dev(psr->hw), psr->ptype_mk_tcam_table);
devm_kfree(ice_hw_to_dev(psr->hw), psr->mk_grp_table);
devm_kfree(ice_hw_to_dev(psr->hw), psr->proto_grp_table);
+ devm_kfree(ice_hw_to_dev(psr->hw), psr->flg_rd_table);
devm_kfree(ice_hw_to_dev(psr->hw), psr);
}
diff --git a/drivers/net/ethernet/intel/ice/ice_parser.h b/drivers/net/ethernet/intel/ice/ice_parser.h
index 4038833450f2..62123788e0a2 100644
--- a/drivers/net/ethernet/intel/ice/ice_parser.h
+++ b/drivers/net/ethernet/intel/ice/ice_parser.h
@@ -11,6 +11,7 @@
#include "ice_ptype_mk.h"
#include "ice_mk_grp.h"
#include "ice_proto_grp.h"
+#include "ice_flg_rd.h"
#define ICE_SEC_DATA_OFFSET 4
#define ICE_SID_RXPARSER_IMEM_ENTRY_SIZE 48
@@ -23,6 +24,7 @@
#define ICE_SID_RXPARSER_MARKER_TYPE_ENTRY_SIZE 24
#define ICE_SID_RXPARSER_MARKER_GRP_ENTRY_SIZE 8
#define ICE_SID_RXPARSER_PROTO_GRP_ENTRY_SIZE 24
+#define ICE_SID_RXPARSER_FLAG_REDIR_ENTRY_SIZE 1
#define ICE_SEC_LBL_DATA_OFFSET 2
#define ICE_SID_LBL_ENTRY_SIZE 66
@@ -52,6 +54,8 @@ struct ice_parser {
struct ice_mk_grp_item *mk_grp_table;
/* load data from section ICE_SID_RXPARSER_PROTO_GRP */
struct ice_proto_grp_item *proto_grp_table;
+ /* load data from section ICE_SID_RXPARSER_FLAG_REDIR */
+ struct ice_flg_rd_item *flg_rd_table;
};
int ice_parser_create(struct ice_hw *hw, struct ice_parser **psr);
--
2.25.1
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