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linux-7.2.3/drivers/net/ethernet/intel/libie/Kconfig

@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2024 Intel Corporation
+
+config LIBIE
+	tristate
+	select LIBETH
+	help
+	  libie (Intel Ethernet library) is a common library built on top of
+	  libeth and containing vendor-specific routines shared between several
+	  Intel Ethernet drivers.
+
+config LIBIE_ADMINQ
+	tristate
+	help
+	  Helper functions used by Intel Ethernet drivers for administration
+	  queue command interface (aka adminq).
+
+config LIBIE_FWLOG
+	tristate
+	select LIBIE_ADMINQ
+	help
+	  Library to support firmware logging on device that have support
+	  for it. Firmware logging is using admin queue interface to communicate
+	  with the device. Debugfs is a user interface used to config logging
+	  and dump all collected logs.

linux-7.2.3/drivers/net/ethernet/intel/libie/Makefile

@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2024 Intel Corporation
+
+obj-$(CONFIG_LIBIE)	+= libie.o
+
+libie-y			:= rx.o
+
+obj-$(CONFIG_LIBIE_ADMINQ) 	+= libie_adminq.o
+
+libie_adminq-y			:= adminq.o
+
+obj-$(CONFIG_LIBIE_FWLOG) 	+= libie_fwlog.o
+
+libie_fwlog-y			:= fwlog.o

linux-7.2.3/drivers/net/ethernet/intel/libie/adminq.c

@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (C) 2025 Intel Corporation */
+
+#include <linux/module.h>
+#include <linux/net/intel/libie/adminq.h>
+
+static const char * const libie_aq_str_arr[] = {
+#define LIBIE_AQ_STR(x)					\
+	[LIBIE_AQ_RC_##x]	= "LIBIE_AQ_RC_" #x
+	LIBIE_AQ_STR(OK),
+	LIBIE_AQ_STR(EPERM),
+	LIBIE_AQ_STR(ENOENT),
+	LIBIE_AQ_STR(ESRCH),
+	LIBIE_AQ_STR(EIO),
+	LIBIE_AQ_STR(EAGAIN),
+	LIBIE_AQ_STR(ENOMEM),
+	LIBIE_AQ_STR(EACCES),
+	LIBIE_AQ_STR(EBUSY),
+	LIBIE_AQ_STR(EEXIST),
+	LIBIE_AQ_STR(EINVAL),
+	LIBIE_AQ_STR(ENOSPC),
+	LIBIE_AQ_STR(ENOSYS),
+	LIBIE_AQ_STR(EMODE),
+	LIBIE_AQ_STR(ENOSEC),
+	LIBIE_AQ_STR(EBADSIG),
+	LIBIE_AQ_STR(ESVN),
+	LIBIE_AQ_STR(EBADMAN),
+	LIBIE_AQ_STR(EBADBUF),
+#undef LIBIE_AQ_STR
+	"LIBIE_AQ_RC_UNKNOWN",
+};
+
+#define __LIBIE_AQ_STR_NUM (ARRAY_SIZE(libie_aq_str_arr) - 1)
+
+/**
+ * libie_aq_str - get error string based on aq error
+ * @err: admin queue error type
+ *
+ * Return: error string for passed error code
+ */
+const char *libie_aq_str(enum libie_aq_err err)
+{
+	if (err >= ARRAY_SIZE(libie_aq_str_arr) ||
+	    !libie_aq_str_arr[err])
+		err = __LIBIE_AQ_STR_NUM;
+
+	return libie_aq_str_arr[err];
+}
+EXPORT_SYMBOL_NS_GPL(libie_aq_str, "LIBIE_ADMINQ");
+
+MODULE_DESCRIPTION("Intel(R) Ethernet common library - adminq helpers");
+MODULE_LICENSE("GPL");

linux-7.2.3/drivers/net/ethernet/intel/libie/rx.c

@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (C) 2024-2025 Intel Corporation */
+
+#define DEFAULT_SYMBOL_NAMESPACE	"LIBIE"
+
+#include <linux/export.h>
+#include <linux/net/intel/libie/rx.h>
+
+/* O(1) converting i40e/ice/iavf's 8/10-bit hardware packet type to a parsed
+ * bitfield struct.
+ */
+
+/* A few supplementary definitions for when XDP hash types do not coincide
+ * with what can be generated from ptype definitions by means of preprocessor
+ * concatenation.
+ */
+#define XDP_RSS_L3_L2			XDP_RSS_TYPE_NONE
+#define XDP_RSS_L4_NONE			XDP_RSS_TYPE_NONE
+#define XDP_RSS_L4_TIMESYNC		XDP_RSS_TYPE_NONE
+#define XDP_RSS_TYPE_L3			XDP_RSS_TYPE_NONE
+#define XDP_RSS_TYPE_L4			XDP_RSS_L4
+
+#define LIBIE_RX_PT(oip, ofrag, tun, tp, tefr, iprot, pl) {		   \
+		.outer_ip		= LIBETH_RX_PT_OUTER_##oip,	   \
+		.outer_frag		= LIBETH_RX_PT_##ofrag,		   \
+		.tunnel_type		= LIBETH_RX_PT_TUNNEL_IP_##tun,	   \
+		.tunnel_end_prot	= LIBETH_RX_PT_TUNNEL_END_##tp,	   \
+		.tunnel_end_frag	= LIBETH_RX_PT_##tefr,		   \
+		.inner_prot		= LIBETH_RX_PT_INNER_##iprot,	   \
+		.payload_layer		= LIBETH_RX_PT_PAYLOAD_##pl,	   \
+		.hash_type		= XDP_RSS_L3_##oip |		   \
+					  XDP_RSS_L4_##iprot |		   \
+					  XDP_RSS_TYPE_##pl,		   \
+	}
+
+#define LIBIE_RX_PT_UNUSED		{ }
+
+#define __LIBIE_RX_PT_L2(iprot, pl)					   \
+	LIBIE_RX_PT(L2, NOT_FRAG, NONE, NONE, NOT_FRAG, iprot, pl)
+#define LIBIE_RX_PT_L2		__LIBIE_RX_PT_L2(NONE, L2)
+#define LIBIE_RX_PT_TS		__LIBIE_RX_PT_L2(TIMESYNC, L2)
+#define LIBIE_RX_PT_L3		__LIBIE_RX_PT_L2(NONE, L3)
+
+#define LIBIE_RX_PT_IP_FRAG(oip)					   \
+	LIBIE_RX_PT(IPV##oip, FRAG, NONE, NONE, NOT_FRAG, NONE, L3)
+#define LIBIE_RX_PT_IP_L3(oip, tun, teprot, tefr)			   \
+	LIBIE_RX_PT(IPV##oip, NOT_FRAG, tun, teprot, tefr, NONE, L3)
+#define LIBIE_RX_PT_IP_L4(oip, tun, teprot, iprot)			   \
+	LIBIE_RX_PT(IPV##oip, NOT_FRAG, tun, teprot, NOT_FRAG, iprot, L4)
+
+#define LIBIE_RX_PT_IP_NOF(oip, tun, ver)				   \
+	LIBIE_RX_PT_IP_L3(oip, tun, ver, NOT_FRAG),			   \
+	LIBIE_RX_PT_IP_L4(oip, tun, ver, UDP),				   \
+	LIBIE_RX_PT_UNUSED,						   \
+	LIBIE_RX_PT_IP_L4(oip, tun, ver, TCP),				   \
+	LIBIE_RX_PT_IP_L4(oip, tun, ver, SCTP),				   \
+	LIBIE_RX_PT_IP_L4(oip, tun, ver, ICMP)
+
+/* IPv oip --> tun --> IPv ver */
+#define LIBIE_RX_PT_IP_TUN_VER(oip, tun, ver)				   \
+	LIBIE_RX_PT_IP_L3(oip, tun, ver, FRAG),				   \
+	LIBIE_RX_PT_IP_NOF(oip, tun, ver)
+
+/* Non Tunneled IPv oip */
+#define LIBIE_RX_PT_IP_RAW(oip)						   \
+	LIBIE_RX_PT_IP_FRAG(oip),					   \
+	LIBIE_RX_PT_IP_NOF(oip, NONE, NONE)
+
+/* IPv oip --> tun --> { IPv4, IPv6 } */
+#define LIBIE_RX_PT_IP_TUN(oip, tun)					   \
+	LIBIE_RX_PT_IP_TUN_VER(oip, tun, IPV4),				   \
+	LIBIE_RX_PT_IP_TUN_VER(oip, tun, IPV6)
+
+/* IPv oip --> GRE/NAT tun --> { x, IPv4, IPv6 } */
+#define LIBIE_RX_PT_IP_GRE(oip, tun)					   \
+	LIBIE_RX_PT_IP_L3(oip, tun, NONE, NOT_FRAG),			   \
+	LIBIE_RX_PT_IP_TUN(oip, tun)
+
+/* Non Tunneled IPv oip
+ * IPv oip --> { IPv4, IPv6 }
+ * IPv oip --> GRE/NAT --> { x, IPv4, IPv6 }
+ * IPv oip --> GRE/NAT --> MAC --> { x, IPv4, IPv6 }
+ * IPv oip --> GRE/NAT --> MAC/VLAN --> { x, IPv4, IPv6 }
+ */
+#define LIBIE_RX_PT_IP(oip)						   \
+	LIBIE_RX_PT_IP_RAW(oip),					   \
+	LIBIE_RX_PT_IP_TUN(oip, IP),					   \
+	LIBIE_RX_PT_IP_GRE(oip, GRENAT),				   \
+	LIBIE_RX_PT_IP_GRE(oip, GRENAT_MAC),				   \
+	LIBIE_RX_PT_IP_GRE(oip, GRENAT_MAC_VLAN)
+
+/* Lookup table mapping for O(1) parsing */
+const struct libeth_rx_pt libie_rx_pt_lut[LIBIE_RX_PT_NUM] = {
+	/* L2 packet types */
+	LIBIE_RX_PT_UNUSED,
+	LIBIE_RX_PT_L2,
+	LIBIE_RX_PT_TS,
+	LIBIE_RX_PT_L2,
+	LIBIE_RX_PT_UNUSED,
+	LIBIE_RX_PT_UNUSED,
+	LIBIE_RX_PT_L2,
+	LIBIE_RX_PT_L2,
+	LIBIE_RX_PT_UNUSED,
+	LIBIE_RX_PT_UNUSED,
+	LIBIE_RX_PT_L2,
+	LIBIE_RX_PT_UNUSED,
+
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+	LIBIE_RX_PT_L3,
+
+	LIBIE_RX_PT_IP(4),
+	LIBIE_RX_PT_IP(6),
+};
+EXPORT_SYMBOL_GPL(libie_rx_pt_lut);
+
+MODULE_DESCRIPTION("Intel(R) Ethernet common library");
+MODULE_IMPORT_NS("LIBETH");
+MODULE_LICENSE("GPL");