[PATCH 32/52] mips: octeon: Add cvmx-pki.c

Stefan Roese sr at denx.de
Wed Mar 30 12:07:08 CEST 2022


From: Aaron Williams <awilliams at marvell.com>

Import cvmx-pki.c from 2013 U-Boot. It will be used by the later
added drivers to support networking on the MIPS Octeon II / III
platforms.

Signed-off-by: Aaron Williams <awilliams at marvell.com>
Signed-off-by: Stefan Roese <sr at denx.de>
---
 arch/mips/mach-octeon/cvmx-pki.c | 1619 ++++++++++++++++++++++++++++++
 1 file changed, 1619 insertions(+)
 create mode 100644 arch/mips/mach-octeon/cvmx-pki.c

diff --git a/arch/mips/mach-octeon/cvmx-pki.c b/arch/mips/mach-octeon/cvmx-pki.c
new file mode 100644
index 000000000000..136e17966b18
--- /dev/null
+++ b/arch/mips/mach-octeon/cvmx-pki.c
@@ -0,0 +1,1619 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018-2022 Marvell International Ltd.
+ *
+ * PKI Support.
+ */
+
+#include <time.h>
+#include <log.h>
+#include <linux/delay.h>
+
+#include <mach/cvmx-regs.h>
+#include <mach/cvmx-csr.h>
+#include <mach/cvmx-bootmem.h>
+#include <mach/octeon-model.h>
+#include <mach/cvmx-fuse.h>
+#include <mach/octeon-feature.h>
+#include <mach/cvmx-qlm.h>
+#include <mach/octeon_qlm.h>
+#include <mach/cvmx-pcie.h>
+#include <mach/cvmx-coremask.h>
+
+#include <mach/cvmx-agl-defs.h>
+#include <mach/cvmx-bgxx-defs.h>
+#include <mach/cvmx-ciu-defs.h>
+#include <mach/cvmx-gmxx-defs.h>
+#include <mach/cvmx-gserx-defs.h>
+#include <mach/cvmx-ilk-defs.h>
+#include <mach/cvmx-ipd-defs.h>
+#include <mach/cvmx-pcsx-defs.h>
+#include <mach/cvmx-pcsxx-defs.h>
+#include <mach/cvmx-pki-defs.h>
+#include <mach/cvmx-pko-defs.h>
+#include <mach/cvmx-xcv-defs.h>
+
+#include <mach/cvmx-hwpko.h>
+#include <mach/cvmx-ilk.h>
+#include <mach/cvmx-pki.h>
+#include <mach/cvmx-pki-cluster.h>
+#include <mach/cvmx-pki-resources.h>
+
+#include <mach/cvmx-helper.h>
+#include <mach/cvmx-helper-board.h>
+#include <mach/cvmx-helper-cfg.h>
+
+/**
+ * This function enables PKI
+ *
+ * @param node  Node to enable PKI.
+ */
+void cvmx_pki_enable(int node)
+{
+	cvmx_pki_sft_rst_t sft_rst;
+	cvmx_pki_buf_ctl_t buf_ctl;
+
+	sft_rst.u64 = csr_rd_node(node, CVMX_PKI_SFT_RST);
+	while (sft_rst.s.busy != 0)
+		sft_rst.u64 = csr_rd_node(node, CVMX_PKI_SFT_RST);
+
+	buf_ctl.u64 = csr_rd_node(node, CVMX_PKI_BUF_CTL);
+	if (buf_ctl.s.pki_en)
+		debug("Warning: Enabling PKI when PKI already enabled.\n");
+
+	buf_ctl.s.pki_en = 1;
+	csr_wr_node(node, CVMX_PKI_BUF_CTL, buf_ctl.u64);
+}
+
+/**
+ * This function disables PKI.
+ *
+ * @param node  Node to disable PKI.
+ */
+void cvmx_pki_disable(int node)
+{
+	cvmx_pki_buf_ctl_t buf_ctl;
+
+	buf_ctl.u64 = csr_rd_node(node, CVMX_PKI_BUF_CTL);
+	buf_ctl.s.pki_en = 0;
+	csr_wr_node(node, CVMX_PKI_BUF_CTL, buf_ctl.u64);
+}
+
+/**
+ * This function soft resets PKI.
+ *
+ * @param node  Node to enable PKI.
+ */
+void cvmx_pki_reset(int node)
+{
+	cvmx_pki_sft_rst_t sft_rst;
+
+	sft_rst.u64 = csr_rd_node(node, CVMX_PKI_SFT_RST);
+	if (CVMX_WAIT_FOR_FIELD64_NODE(node, CVMX_PKI_SFT_RST,
+				       cvmx_pki_sft_rst_t, active, ==, 0,
+				       10000)) {
+		debug("PKI_SFT_RST is not active\n");
+	}
+
+	sft_rst.s.rst = 1;
+	csr_wr_node(node, CVMX_PKI_SFT_RST, sft_rst.u64);
+	if (CVMX_WAIT_FOR_FIELD64_NODE(node, CVMX_PKI_SFT_RST,
+				       cvmx_pki_sft_rst_t, busy, ==, 0,
+				       10000)) {
+		debug("PKI_SFT_RST is busy\n");
+	}
+}
+
+/**
+ * This function sets the clusters in PKI.
+ *
+ * @param node  Node to set clusters.
+ */
+int cvmx_pki_setup_clusters(int node)
+{
+	int i;
+
+	for (i = 0; i < cvmx_pki_cluster_code_length; i++)
+		csr_wr_node(node, CVMX_PKI_IMEMX(i),
+			    cvmx_pki_cluster_code_default[i]);
+
+	return 0;
+}
+
+/**
+ * @INTERNAL
+ * This function is called by cvmx_helper_shutdown() to extract all FPA buffers
+ * out of the PKI. After this function completes, all FPA buffers that were
+ * prefetched by PKI will be in the appropriate FPA pool. This functions does
+ * not reset PKI.
+ * WARNING: It is very important that PKI be reset soon after a call to this function.
+ */
+void __cvmx_pki_free_ptr(int node)
+{
+	cvmx_pki_buf_ctl_t buf_ctl;
+
+	buf_ctl.u64 = csr_rd_node(node, CVMX_PKI_BUF_CTL);
+	/* Disable buffering any data. */
+	buf_ctl.s.pkt_off = 1;
+	/* Disable caching of any data and return all the prefetched buffers to FPA. */
+	buf_ctl.s.fpa_cac_dis = 1;
+	csr_wr_node(node, CVMX_PKI_BUF_CTL, buf_ctl.u64);
+	buf_ctl.u64 = csr_rd_node(node, CVMX_PKI_BUF_CTL);
+}
+
+/**
+ * This function reads global configuration of PKI block.
+ *
+ * @param node  Node number.
+ * @param gbl_cfg  Pointer to struct to read global configuration.
+ */
+void cvmx_pki_read_global_config(int node,
+				 struct cvmx_pki_global_config *gbl_cfg)
+{
+	cvmx_pki_stat_ctl_t stat_ctl;
+	cvmx_pki_icgx_cfg_t icg_cfg;
+	cvmx_pki_gbl_pen_t gbl_pen;
+	cvmx_pki_tag_secret_t tag_secret;
+	cvmx_pki_frm_len_chkx_t frm_len_chk;
+	cvmx_pki_buf_ctl_t buf_ctl;
+	unsigned int cl_grp;
+	int id;
+
+	stat_ctl.u64 = csr_rd_node(node, CVMX_PKI_STAT_CTL);
+	gbl_cfg->stat_mode = stat_ctl.s.mode;
+
+	for (cl_grp = 0; cl_grp < CVMX_PKI_NUM_CLUSTER_GROUP; cl_grp++) {
+		icg_cfg.u64 = csr_rd_node(node, CVMX_PKI_ICGX_CFG(cl_grp));
+		gbl_cfg->cluster_mask[cl_grp] = icg_cfg.s.clusters;
+	}
+	gbl_pen.u64 = csr_rd_node(node, CVMX_PKI_GBL_PEN);
+	gbl_cfg->gbl_pen.virt_pen = gbl_pen.s.virt_pen;
+	gbl_cfg->gbl_pen.clg_pen = gbl_pen.s.clg_pen;
+	gbl_cfg->gbl_pen.cl2_pen = gbl_pen.s.cl2_pen;
+	gbl_cfg->gbl_pen.l4_pen = gbl_pen.s.l4_pen;
+	gbl_cfg->gbl_pen.il3_pen = gbl_pen.s.il3_pen;
+	gbl_cfg->gbl_pen.l3_pen = gbl_pen.s.l3_pen;
+	gbl_cfg->gbl_pen.mpls_pen = gbl_pen.s.mpls_pen;
+	gbl_cfg->gbl_pen.fulc_pen = gbl_pen.s.fulc_pen;
+	gbl_cfg->gbl_pen.dsa_pen = gbl_pen.s.dsa_pen;
+	gbl_cfg->gbl_pen.hg_pen = gbl_pen.s.hg_pen;
+
+	tag_secret.u64 = csr_rd_node(node, CVMX_PKI_TAG_SECRET);
+	gbl_cfg->tag_secret.dst6 = tag_secret.s.dst6;
+	gbl_cfg->tag_secret.src6 = tag_secret.s.src6;
+	gbl_cfg->tag_secret.dst = tag_secret.s.dst;
+	gbl_cfg->tag_secret.src = tag_secret.s.src;
+
+	for (id = 0; id < CVMX_PKI_NUM_FRAME_CHECK; id++) {
+		frm_len_chk.u64 = csr_rd_node(node, CVMX_PKI_FRM_LEN_CHKX(id));
+		gbl_cfg->frm_len[id].maxlen = frm_len_chk.s.maxlen;
+		gbl_cfg->frm_len[id].minlen = frm_len_chk.s.minlen;
+	}
+	buf_ctl.u64 = csr_rd_node(node, CVMX_PKI_BUF_CTL);
+	gbl_cfg->fpa_wait = buf_ctl.s.fpa_wait;
+}
+
+/**
+ * This function writes max and min frame lengths to hardware which can be used
+ * to check the size of frame arrived.There are 2 possible combination which are
+ * indicated by id field.
+ *
+ * @param node  Node number.
+ * @param id  Choose which frame len register to write to
+ * @param len_chk  Struct containing byte count for max-sized/min-sized frame check.
+ */
+static void cvmx_pki_write_frame_len(int node, int id,
+				     struct cvmx_pki_frame_len len_chk)
+{
+	cvmx_pki_frm_len_chkx_t frm_len_chk;
+
+	frm_len_chk.u64 = csr_rd_node(node, CVMX_PKI_FRM_LEN_CHKX(id));
+	frm_len_chk.s.maxlen = len_chk.maxlen;
+	frm_len_chk.s.minlen = len_chk.minlen;
+	csr_wr_node(node, CVMX_PKI_FRM_LEN_CHKX(id), frm_len_chk.u64);
+}
+
+/**
+ * This function writes global configuration of PKI into hw.
+ *
+ * @param node  Node number.
+ * @param gbl_cfg  Pointer to struct to global configuration.
+ */
+void cvmx_pki_write_global_config(int node,
+				  struct cvmx_pki_global_config *gbl_cfg)
+{
+	cvmx_pki_stat_ctl_t stat_ctl;
+	cvmx_pki_buf_ctl_t buf_ctl;
+	unsigned int cl_grp;
+
+	for (cl_grp = 0; cl_grp < CVMX_PKI_NUM_CLUSTER_GROUP; cl_grp++)
+		cvmx_pki_attach_cluster_to_group(node, cl_grp,
+						 gbl_cfg->cluster_mask[cl_grp]);
+
+	stat_ctl.u64 = 0;
+	stat_ctl.s.mode = gbl_cfg->stat_mode;
+	csr_wr_node(node, CVMX_PKI_STAT_CTL, stat_ctl.u64);
+
+	buf_ctl.u64 = csr_rd_node(node, CVMX_PKI_BUF_CTL);
+	buf_ctl.s.fpa_wait = gbl_cfg->fpa_wait;
+	csr_wr_node(node, CVMX_PKI_BUF_CTL, buf_ctl.u64);
+
+	cvmx_pki_write_global_parse(node, gbl_cfg->gbl_pen);
+	cvmx_pki_write_tag_secret(node, gbl_cfg->tag_secret);
+	cvmx_pki_write_frame_len(node, 0, gbl_cfg->frm_len[0]);
+	cvmx_pki_write_frame_len(node, 1, gbl_cfg->frm_len[1]);
+}
+
+/**
+ * This function reads per pkind parameters in hardware which defines how
+ * the incoming packet is processed.
+ *
+ * @param node  Node number.
+ * @param pkind  PKI supports a large number of incoming interfaces and packets
+ *     arriving on different interfaces or channels may want to be processed
+ *     differently. PKI uses the pkind to determine how the incoming packet
+ *     is processed.
+ * @param pkind_cfg  Pointer to struct conatining pkind configuration read
+ *     from the hardware.
+ */
+int cvmx_pki_read_pkind_config(int node, int pkind,
+			       struct cvmx_pki_pkind_config *pkind_cfg)
+{
+	int cluster = 0;
+	u64 cl_mask;
+	cvmx_pki_pkindx_icgsel_t icgsel;
+	cvmx_pki_clx_pkindx_style_t pstyle;
+	cvmx_pki_icgx_cfg_t icg_cfg;
+	cvmx_pki_clx_pkindx_cfg_t pcfg;
+	cvmx_pki_clx_pkindx_skip_t skip;
+	cvmx_pki_clx_pkindx_l2_custom_t l2cust;
+	cvmx_pki_clx_pkindx_lg_custom_t lgcust;
+
+	icgsel.u64 = csr_rd_node(node, CVMX_PKI_PKINDX_ICGSEL(pkind));
+	icg_cfg.u64 = csr_rd_node(node, CVMX_PKI_ICGX_CFG(icgsel.s.icg));
+	pkind_cfg->cluster_grp = (uint8_t)icgsel.s.icg;
+	cl_mask = (uint64_t)icg_cfg.s.clusters;
+	cluster = __builtin_ffsll(cl_mask) - 1;
+
+	pstyle.u64 =
+		csr_rd_node(node, CVMX_PKI_CLX_PKINDX_STYLE(pkind, cluster));
+	pkind_cfg->initial_parse_mode = pstyle.s.pm;
+	pkind_cfg->initial_style = pstyle.s.style;
+
+	pcfg.u64 = csr_rd_node(node, CVMX_PKI_CLX_PKINDX_CFG(pkind, cluster));
+	pkind_cfg->fcs_pres = pcfg.s.fcs_pres;
+	pkind_cfg->parse_en.inst_hdr = pcfg.s.inst_hdr;
+	pkind_cfg->parse_en.mpls_en = pcfg.s.mpls_en;
+	pkind_cfg->parse_en.lg_custom = pcfg.s.lg_custom;
+	pkind_cfg->parse_en.fulc_en = pcfg.s.fulc_en;
+	pkind_cfg->parse_en.dsa_en = pcfg.s.dsa_en;
+	pkind_cfg->parse_en.hg2_en = pcfg.s.hg2_en;
+	pkind_cfg->parse_en.hg_en = pcfg.s.hg_en;
+
+	skip.u64 = csr_rd_node(node, CVMX_PKI_CLX_PKINDX_SKIP(pkind, cluster));
+	pkind_cfg->fcs_skip = skip.s.fcs_skip;
+	pkind_cfg->inst_skip = skip.s.inst_skip;
+
+	l2cust.u64 = csr_rd_node(node,
+				 CVMX_PKI_CLX_PKINDX_L2_CUSTOM(pkind, cluster));
+	pkind_cfg->l2_scan_offset = l2cust.s.offset;
+
+	lgcust.u64 = csr_rd_node(node,
+				 CVMX_PKI_CLX_PKINDX_LG_CUSTOM(pkind, cluster));
+	pkind_cfg->lg_scan_offset = lgcust.s.offset;
+	return 0;
+}
+
+/**
+ * This function writes per pkind parameters in hardware which defines how
+ * the incoming packet is processed.
+ *
+ * @param node  Node number.
+ * @param pkind  PKI supports a large number of incoming interfaces and packets
+ *     arriving on different interfaces or channels may want to be processed
+ *     differently. PKI uses the pkind to determine how the incoming
+ *     packet is processed.
+ * @param pkind_cfg  Pointer to struct conatining pkind configuration need
+ *     to be written in the hardware.
+ */
+int cvmx_pki_write_pkind_config(int node, int pkind,
+				struct cvmx_pki_pkind_config *pkind_cfg)
+{
+	unsigned int cluster = 0;
+	u64 cluster_mask;
+	cvmx_pki_pkindx_icgsel_t icgsel;
+	cvmx_pki_clx_pkindx_style_t pstyle;
+	cvmx_pki_icgx_cfg_t icg_cfg;
+	cvmx_pki_clx_pkindx_cfg_t pcfg;
+	cvmx_pki_clx_pkindx_skip_t skip;
+	cvmx_pki_clx_pkindx_l2_custom_t l2cust;
+	cvmx_pki_clx_pkindx_lg_custom_t lgcust;
+
+	if (pkind >= CVMX_PKI_NUM_PKIND ||
+	    pkind_cfg->cluster_grp >= CVMX_PKI_NUM_CLUSTER_GROUP ||
+	    pkind_cfg->initial_style >= CVMX_PKI_NUM_FINAL_STYLE) {
+		debug("ERROR: Configuring PKIND pkind = %d cluster_group = %d style = %d\n",
+		      pkind, pkind_cfg->cluster_grp, pkind_cfg->initial_style);
+		return -1;
+	}
+	icgsel.u64 = csr_rd_node(node, CVMX_PKI_PKINDX_ICGSEL(pkind));
+	icgsel.s.icg = pkind_cfg->cluster_grp;
+	csr_wr_node(node, CVMX_PKI_PKINDX_ICGSEL(pkind), icgsel.u64);
+
+	icg_cfg.u64 =
+		csr_rd_node(node, CVMX_PKI_ICGX_CFG(pkind_cfg->cluster_grp));
+	cluster_mask = (uint64_t)icg_cfg.s.clusters;
+	while (cluster < CVMX_PKI_NUM_CLUSTER) {
+		if (cluster_mask & (0x01L << cluster)) {
+			pstyle.u64 = csr_rd_node(
+				node,
+				CVMX_PKI_CLX_PKINDX_STYLE(pkind, cluster));
+			pstyle.s.pm = pkind_cfg->initial_parse_mode;
+			pstyle.s.style = pkind_cfg->initial_style;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PKINDX_STYLE(pkind, cluster),
+				    pstyle.u64);
+
+			pcfg.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_PKINDX_CFG(pkind, cluster));
+			pcfg.s.fcs_pres = pkind_cfg->fcs_pres;
+			pcfg.s.inst_hdr = pkind_cfg->parse_en.inst_hdr;
+			pcfg.s.mpls_en = pkind_cfg->parse_en.mpls_en;
+			pcfg.s.lg_custom = pkind_cfg->parse_en.lg_custom;
+			pcfg.s.fulc_en = pkind_cfg->parse_en.fulc_en;
+			pcfg.s.dsa_en = pkind_cfg->parse_en.dsa_en;
+			pcfg.s.hg2_en = pkind_cfg->parse_en.hg2_en;
+			pcfg.s.hg_en = pkind_cfg->parse_en.hg_en;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PKINDX_CFG(pkind, cluster),
+				    pcfg.u64);
+
+			skip.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_PKINDX_SKIP(pkind, cluster));
+			skip.s.fcs_skip = pkind_cfg->fcs_skip;
+			skip.s.inst_skip = pkind_cfg->inst_skip;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PKINDX_SKIP(pkind, cluster),
+				    skip.u64);
+
+			l2cust.u64 = csr_rd_node(
+				node,
+				CVMX_PKI_CLX_PKINDX_L2_CUSTOM(pkind, cluster));
+			l2cust.s.offset = pkind_cfg->l2_scan_offset;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PKINDX_L2_CUSTOM(pkind,
+								  cluster),
+				    l2cust.u64);
+
+			lgcust.u64 = csr_rd_node(
+				node,
+				CVMX_PKI_CLX_PKINDX_LG_CUSTOM(pkind, cluster));
+			lgcust.s.offset = pkind_cfg->lg_scan_offset;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PKINDX_LG_CUSTOM(pkind,
+								  cluster),
+				    lgcust.u64);
+		}
+		cluster++;
+	}
+	return 0;
+}
+
+/**
+ * This function reads parameters associated with tag configuration in hardware.
+ * Only first cluster in the group is used.
+ *
+ * @param node  Node number.
+ * @param style  Style to configure tag for.
+ * @param cluster_mask	Mask of clusters to configure the style for.
+ * @param tag_cfg  Pointer to tag configuration struct.
+ */
+void cvmx_pki_read_tag_config(int node, int style, uint64_t cluster_mask,
+			      struct cvmx_pki_style_tag_cfg *tag_cfg)
+{
+	int mask, tag_idx, index;
+	cvmx_pki_clx_stylex_cfg2_t style_cfg2;
+	cvmx_pki_clx_stylex_alg_t style_alg;
+	cvmx_pki_stylex_tag_sel_t tag_sel;
+	cvmx_pki_tag_incx_ctl_t tag_ctl;
+	cvmx_pki_tag_incx_mask_t tag_mask;
+	int cluster = __builtin_ffsll(cluster_mask) - 1;
+
+	style_cfg2.u64 =
+		csr_rd_node(node, CVMX_PKI_CLX_STYLEX_CFG2(style, cluster));
+	style_alg.u64 =
+		csr_rd_node(node, CVMX_PKI_CLX_STYLEX_ALG(style, cluster));
+
+	/* 7-Tuple Tag: */
+	tag_cfg->tag_fields.layer_g_src = style_cfg2.s.tag_src_lg;
+	tag_cfg->tag_fields.layer_f_src = style_cfg2.s.tag_src_lf;
+	tag_cfg->tag_fields.layer_e_src = style_cfg2.s.tag_src_le;
+	tag_cfg->tag_fields.layer_d_src = style_cfg2.s.tag_src_ld;
+	tag_cfg->tag_fields.layer_c_src = style_cfg2.s.tag_src_lc;
+	tag_cfg->tag_fields.layer_b_src = style_cfg2.s.tag_src_lb;
+	tag_cfg->tag_fields.layer_g_dst = style_cfg2.s.tag_dst_lg;
+	tag_cfg->tag_fields.layer_f_dst = style_cfg2.s.tag_dst_lf;
+	tag_cfg->tag_fields.layer_e_dst = style_cfg2.s.tag_dst_le;
+	tag_cfg->tag_fields.layer_d_dst = style_cfg2.s.tag_dst_ld;
+	tag_cfg->tag_fields.layer_c_dst = style_cfg2.s.tag_dst_lc;
+	tag_cfg->tag_fields.layer_b_dst = style_cfg2.s.tag_dst_lb;
+	tag_cfg->tag_fields.tag_vni = style_alg.s.tag_vni;
+	tag_cfg->tag_fields.tag_gtp = style_alg.s.tag_gtp;
+	tag_cfg->tag_fields.tag_spi = style_alg.s.tag_spi;
+	tag_cfg->tag_fields.tag_sync = style_alg.s.tag_syn;
+	tag_cfg->tag_fields.ip_prot_nexthdr = style_alg.s.tag_pctl;
+	tag_cfg->tag_fields.second_vlan = style_alg.s.tag_vs1;
+	tag_cfg->tag_fields.first_vlan = style_alg.s.tag_vs0;
+	tag_cfg->tag_fields.mpls_label = style_alg.s.tag_mpls0;
+	tag_cfg->tag_fields.input_port = style_alg.s.tag_prt;
+
+	/* Custom-Mask Tag: */
+	tag_sel.u64 = csr_rd_node(node, CVMX_PKI_STYLEX_TAG_SEL(style));
+	for (mask = 0; mask < 4; mask++) {
+		tag_cfg->mask_tag[mask].enable =
+			(style_cfg2.s.tag_inc & (1 << mask)) != 0;
+		switch (mask) {
+		case 0:
+			tag_idx = tag_sel.s.tag_idx0;
+			break;
+		case 1:
+			tag_idx = tag_sel.s.tag_idx1;
+			break;
+		case 2:
+			tag_idx = tag_sel.s.tag_idx2;
+			break;
+		case 3:
+			tag_idx = tag_sel.s.tag_idx3;
+			break;
+		}
+		index = tag_idx * 4 + mask;
+		tag_mask.u64 = csr_rd_node(node, CVMX_PKI_TAG_INCX_MASK(index));
+		tag_cfg->mask_tag[mask].val = tag_mask.s.en;
+		tag_ctl.u64 = csr_rd_node(node, CVMX_PKI_TAG_INCX_CTL(index));
+		tag_cfg->mask_tag[mask].base = tag_ctl.s.ptr_sel;
+		tag_cfg->mask_tag[mask].offset = tag_ctl.s.offset;
+	}
+}
+
+/**
+ * This function writes/configures parameters associated with tag configuration in
+ * hardware. In Custom-Mask Tagging, all four masks use the same base index
+ * to access Tag Control and Tag Mask registers.
+ *
+ * @param node  Node number.
+ * @param style  Style to configure tag for.
+ * @param cluster_mask  Mask of clusters to configure the style for.
+ * @param tag_cfg  Pointer to taf configuration struct.
+ */
+void cvmx_pki_write_tag_config(int node, int style, uint64_t cluster_mask,
+			       struct cvmx_pki_style_tag_cfg *tag_cfg)
+{
+	int mask, index, tag_idx, mtag_en = 0;
+	unsigned int cluster = 0;
+	cvmx_pki_clx_stylex_cfg2_t scfg2;
+	cvmx_pki_clx_stylex_alg_t style_alg;
+	cvmx_pki_tag_incx_ctl_t tag_ctl;
+	cvmx_pki_tag_incx_mask_t tag_mask;
+	cvmx_pki_stylex_tag_sel_t tag_sel;
+
+	while (cluster < CVMX_PKI_NUM_CLUSTER) {
+		if (cluster_mask & (0x01L << cluster)) {
+			/* 7-Tuple Tag: */
+			scfg2.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_STYLEX_CFG2(style, cluster));
+			scfg2.s.tag_src_lg = tag_cfg->tag_fields.layer_g_src;
+			scfg2.s.tag_src_lf = tag_cfg->tag_fields.layer_f_src;
+			scfg2.s.tag_src_le = tag_cfg->tag_fields.layer_e_src;
+			scfg2.s.tag_src_ld = tag_cfg->tag_fields.layer_d_src;
+			scfg2.s.tag_src_lc = tag_cfg->tag_fields.layer_c_src;
+			scfg2.s.tag_src_lb = tag_cfg->tag_fields.layer_b_src;
+			scfg2.s.tag_dst_lg = tag_cfg->tag_fields.layer_g_dst;
+			scfg2.s.tag_dst_lf = tag_cfg->tag_fields.layer_f_dst;
+			scfg2.s.tag_dst_le = tag_cfg->tag_fields.layer_e_dst;
+			scfg2.s.tag_dst_ld = tag_cfg->tag_fields.layer_d_dst;
+			scfg2.s.tag_dst_lc = tag_cfg->tag_fields.layer_c_dst;
+			scfg2.s.tag_dst_lb = tag_cfg->tag_fields.layer_b_dst;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_STYLEX_CFG2(style, cluster),
+				    scfg2.u64);
+
+			style_alg.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_STYLEX_ALG(style, cluster));
+			style_alg.s.tag_vni = tag_cfg->tag_fields.tag_vni;
+			style_alg.s.tag_gtp = tag_cfg->tag_fields.tag_gtp;
+			style_alg.s.tag_spi = tag_cfg->tag_fields.tag_spi;
+			style_alg.s.tag_syn = tag_cfg->tag_fields.tag_sync;
+			style_alg.s.tag_pctl =
+				tag_cfg->tag_fields.ip_prot_nexthdr;
+			style_alg.s.tag_vs1 = tag_cfg->tag_fields.second_vlan;
+			style_alg.s.tag_vs0 = tag_cfg->tag_fields.first_vlan;
+			style_alg.s.tag_mpls0 = tag_cfg->tag_fields.mpls_label;
+			style_alg.s.tag_prt = tag_cfg->tag_fields.input_port;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_STYLEX_ALG(style, cluster),
+				    style_alg.u64);
+
+			/* Custom-Mask Tag (Part 1): */
+			for (mask = 0; mask < 4; mask++) {
+				if (tag_cfg->mask_tag[mask].enable)
+					mtag_en++;
+			}
+			if (mtag_en) {
+				scfg2.u64 = csr_rd_node(
+					node, CVMX_PKI_CLX_STYLEX_CFG2(
+						      style, cluster));
+				scfg2.s.tag_inc = 0;
+				for (mask = 0; mask < 4; mask++) {
+					if (tag_cfg->mask_tag[mask].enable)
+						scfg2.s.tag_inc |= 1 << mask;
+				}
+				csr_wr_node(node,
+					    CVMX_PKI_CLX_STYLEX_CFG2(style,
+								     cluster),
+					    scfg2.u64);
+			}
+		}
+		cluster++;
+	}
+	/* Custom-Mask Tag (Part 2): */
+	if (mtag_en) {
+		tag_idx = cvmx_pki_mtag_idx_alloc(node, -1);
+		if (tag_idx < 0)
+			return;
+
+		tag_sel.u64 = csr_rd_node(node, CVMX_PKI_STYLEX_TAG_SEL(style));
+		for (mask = 0; mask < 4; mask++) {
+			if (tag_cfg->mask_tag[mask].enable) {
+				switch (mask) {
+				case 0:
+					tag_sel.s.tag_idx0 = tag_idx;
+					break;
+				case 1:
+					tag_sel.s.tag_idx1 = tag_idx;
+					break;
+				case 2:
+					tag_sel.s.tag_idx2 = tag_idx;
+					break;
+				case 3:
+					tag_sel.s.tag_idx3 = tag_idx;
+					break;
+				}
+				index = tag_idx * 4 + mask;
+				tag_mask.u64 = csr_rd_node(
+					node, CVMX_PKI_TAG_INCX_MASK(index));
+				tag_mask.s.en = tag_cfg->mask_tag[mask].val;
+				csr_wr_node(node, CVMX_PKI_TAG_INCX_MASK(index),
+					    tag_mask.u64);
+
+				tag_ctl.u64 = csr_rd_node(
+					node, CVMX_PKI_TAG_INCX_CTL(index));
+				tag_ctl.s.ptr_sel =
+					tag_cfg->mask_tag[mask].base;
+				tag_ctl.s.offset =
+					tag_cfg->mask_tag[mask].offset;
+				csr_wr_node(node, CVMX_PKI_TAG_INCX_CTL(index),
+					    tag_ctl.u64);
+			}
+		}
+		csr_wr_node(node, CVMX_PKI_STYLEX_TAG_SEL(style), tag_sel.u64);
+	}
+}
+
+/**
+ * This function reads parameters associated with style in hardware.
+ *
+ * @param node  Node number.
+ * @param style	Style to read from.
+ * @param cluster_mask	Mask of clusters style belongs to.
+ * @param style_cfg	 Pointer to style config struct.
+ */
+void cvmx_pki_read_style_config(int node, int style, uint64_t cluster_mask,
+				struct cvmx_pki_style_config *style_cfg)
+{
+	cvmx_pki_clx_stylex_cfg_t scfg;
+	cvmx_pki_clx_stylex_cfg2_t scfg2;
+	cvmx_pki_clx_stylex_alg_t style_alg;
+	cvmx_pki_stylex_buf_t style_buf;
+	int cluster = __builtin_ffsll(cluster_mask) - 1;
+
+	scfg.u64 = csr_rd_node(node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster));
+	scfg2.u64 = csr_rd_node(node, CVMX_PKI_CLX_STYLEX_CFG2(style, cluster));
+	style_alg.u64 =
+		csr_rd_node(node, CVMX_PKI_CLX_STYLEX_ALG(style, cluster));
+	style_buf.u64 = csr_rd_node(node, CVMX_PKI_STYLEX_BUF(style));
+
+	style_cfg->parm_cfg.ip6_udp_opt = scfg.s.ip6_udp_opt;
+	style_cfg->parm_cfg.lenerr_en = scfg.s.lenerr_en;
+	style_cfg->parm_cfg.lenerr_eqpad = scfg.s.lenerr_eqpad;
+	style_cfg->parm_cfg.maxerr_en = scfg.s.maxerr_en;
+	style_cfg->parm_cfg.minerr_en = scfg.s.minerr_en;
+	style_cfg->parm_cfg.fcs_chk = scfg.s.fcs_chk;
+	style_cfg->parm_cfg.fcs_strip = scfg.s.fcs_strip;
+	style_cfg->parm_cfg.minmax_sel = scfg.s.minmax_sel;
+	style_cfg->parm_cfg.qpg_base = scfg.s.qpg_base;
+	style_cfg->parm_cfg.qpg_dis_padd = scfg.s.qpg_dis_padd;
+	style_cfg->parm_cfg.qpg_dis_aura = scfg.s.qpg_dis_aura;
+	style_cfg->parm_cfg.qpg_dis_grp = scfg.s.qpg_dis_grp;
+	style_cfg->parm_cfg.qpg_dis_grptag = scfg.s.qpg_dis_grptag;
+	style_cfg->parm_cfg.rawdrp = scfg.s.rawdrp;
+	style_cfg->parm_cfg.force_drop = scfg.s.drop;
+	style_cfg->parm_cfg.nodrop = scfg.s.nodrop;
+
+	style_cfg->parm_cfg.len_lg = scfg2.s.len_lg;
+	style_cfg->parm_cfg.len_lf = scfg2.s.len_lf;
+	style_cfg->parm_cfg.len_le = scfg2.s.len_le;
+	style_cfg->parm_cfg.len_ld = scfg2.s.len_ld;
+	style_cfg->parm_cfg.len_lc = scfg2.s.len_lc;
+	style_cfg->parm_cfg.len_lb = scfg2.s.len_lb;
+	style_cfg->parm_cfg.csum_lg = scfg2.s.csum_lg;
+	style_cfg->parm_cfg.csum_lf = scfg2.s.csum_lf;
+	style_cfg->parm_cfg.csum_le = scfg2.s.csum_le;
+	style_cfg->parm_cfg.csum_ld = scfg2.s.csum_ld;
+	style_cfg->parm_cfg.csum_lc = scfg2.s.csum_lc;
+	style_cfg->parm_cfg.csum_lb = scfg2.s.csum_lb;
+
+	style_cfg->parm_cfg.qpg_qos = style_alg.s.qpg_qos;
+	style_cfg->parm_cfg.tag_type = style_alg.s.tt;
+	style_cfg->parm_cfg.apad_nip = style_alg.s.apad_nip;
+	style_cfg->parm_cfg.qpg_port_sh = style_alg.s.qpg_port_sh;
+	style_cfg->parm_cfg.qpg_port_msb = style_alg.s.qpg_port_msb;
+	style_cfg->parm_cfg.wqe_vs = style_alg.s.wqe_vs;
+
+	style_cfg->parm_cfg.pkt_lend = style_buf.s.pkt_lend;
+	style_cfg->parm_cfg.wqe_hsz = style_buf.s.wqe_hsz;
+	style_cfg->parm_cfg.wqe_skip = style_buf.s.wqe_skip * 128;
+	style_cfg->parm_cfg.first_skip = style_buf.s.first_skip * 8;
+	style_cfg->parm_cfg.later_skip = style_buf.s.later_skip * 8;
+	style_cfg->parm_cfg.cache_mode = style_buf.s.opc_mode;
+	style_cfg->parm_cfg.mbuff_size = style_buf.s.mb_size * 8;
+	style_cfg->parm_cfg.dis_wq_dat = style_buf.s.dis_wq_dat;
+
+	cvmx_pki_read_tag_config(node, style, cluster_mask,
+				 &style_cfg->tag_cfg);
+}
+
+/**
+ * This function writes/configures parameters associated with style in hardware.
+ *
+ * @param node  Node number.
+ * @param style  Style to configure.
+ * @param cluster_mask  Mask of clusters to configure the style for.
+ * @param style_cfg	 Pointer to style config struct.
+ */
+void cvmx_pki_write_style_config(int node, uint64_t style, u64 cluster_mask,
+				 struct cvmx_pki_style_config *style_cfg)
+{
+	cvmx_pki_clx_stylex_cfg_t scfg;
+	cvmx_pki_clx_stylex_cfg2_t scfg2;
+	cvmx_pki_clx_stylex_alg_t style_alg;
+	cvmx_pki_stylex_buf_t style_buf;
+	unsigned int cluster = 0;
+
+	while (cluster < CVMX_PKI_NUM_CLUSTER) {
+		if (cluster_mask & (0x01L << cluster)) {
+			scfg.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster));
+			scfg.s.ip6_udp_opt = style_cfg->parm_cfg.ip6_udp_opt;
+			scfg.s.lenerr_en = style_cfg->parm_cfg.lenerr_en;
+			scfg.s.lenerr_eqpad = style_cfg->parm_cfg.lenerr_eqpad;
+			scfg.s.maxerr_en = style_cfg->parm_cfg.maxerr_en;
+			scfg.s.minerr_en = style_cfg->parm_cfg.minerr_en;
+			scfg.s.fcs_chk = style_cfg->parm_cfg.fcs_chk;
+			scfg.s.fcs_strip = style_cfg->parm_cfg.fcs_strip;
+			scfg.s.minmax_sel = style_cfg->parm_cfg.minmax_sel;
+			scfg.s.qpg_base = style_cfg->parm_cfg.qpg_base;
+			scfg.s.qpg_dis_padd = style_cfg->parm_cfg.qpg_dis_padd;
+			scfg.s.qpg_dis_aura = style_cfg->parm_cfg.qpg_dis_aura;
+			scfg.s.qpg_dis_grp = style_cfg->parm_cfg.qpg_dis_grp;
+			scfg.s.qpg_dis_grptag =
+				style_cfg->parm_cfg.qpg_dis_grptag;
+			scfg.s.rawdrp = style_cfg->parm_cfg.rawdrp;
+			scfg.s.drop = style_cfg->parm_cfg.force_drop;
+			scfg.s.nodrop = style_cfg->parm_cfg.nodrop;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_STYLEX_CFG(style, cluster),
+				    scfg.u64);
+
+			scfg2.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_STYLEX_CFG2(style, cluster));
+			scfg2.s.len_lg = style_cfg->parm_cfg.len_lg;
+			scfg2.s.len_lf = style_cfg->parm_cfg.len_lf;
+			scfg2.s.len_le = style_cfg->parm_cfg.len_le;
+			scfg2.s.len_ld = style_cfg->parm_cfg.len_ld;
+			scfg2.s.len_lc = style_cfg->parm_cfg.len_lc;
+			scfg2.s.len_lb = style_cfg->parm_cfg.len_lb;
+			scfg2.s.csum_lg = style_cfg->parm_cfg.csum_lg;
+			scfg2.s.csum_lf = style_cfg->parm_cfg.csum_lf;
+			scfg2.s.csum_le = style_cfg->parm_cfg.csum_le;
+			scfg2.s.csum_ld = style_cfg->parm_cfg.csum_ld;
+			scfg2.s.csum_lc = style_cfg->parm_cfg.csum_lc;
+			scfg2.s.csum_lb = style_cfg->parm_cfg.csum_lb;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_STYLEX_CFG2(style, cluster),
+				    scfg2.u64);
+
+			style_alg.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_STYLEX_ALG(style, cluster));
+			style_alg.s.qpg_qos = style_cfg->parm_cfg.qpg_qos;
+			style_alg.s.tt = style_cfg->parm_cfg.tag_type;
+			style_alg.s.apad_nip = style_cfg->parm_cfg.apad_nip;
+			style_alg.s.qpg_port_sh =
+				style_cfg->parm_cfg.qpg_port_sh;
+			style_alg.s.qpg_port_msb =
+				style_cfg->parm_cfg.qpg_port_msb;
+			style_alg.s.wqe_vs = style_cfg->parm_cfg.wqe_vs;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_STYLEX_ALG(style, cluster),
+				    style_alg.u64);
+		}
+		cluster++;
+	}
+	style_buf.u64 = csr_rd_node(node, CVMX_PKI_STYLEX_BUF(style));
+	style_buf.s.pkt_lend = style_cfg->parm_cfg.pkt_lend;
+	style_buf.s.wqe_hsz = style_cfg->parm_cfg.wqe_hsz;
+	style_buf.s.wqe_skip = (style_cfg->parm_cfg.wqe_skip) / 128;
+	style_buf.s.first_skip = (style_cfg->parm_cfg.first_skip) / 8;
+	style_buf.s.later_skip = style_cfg->parm_cfg.later_skip / 8;
+	style_buf.s.opc_mode = style_cfg->parm_cfg.cache_mode;
+	style_buf.s.mb_size = (style_cfg->parm_cfg.mbuff_size) / 8;
+	style_buf.s.dis_wq_dat = style_cfg->parm_cfg.dis_wq_dat;
+	csr_wr_node(node, CVMX_PKI_STYLEX_BUF(style), style_buf.u64);
+
+	cvmx_pki_write_tag_config(node, style, cluster_mask,
+				  &style_cfg->tag_cfg);
+}
+
+/**
+ * This function reads qpg entry at specified offset from qpg table.
+ *
+ * @param node  Node number.
+ * @param offset  Offset in qpg table to read from.
+ * @param qpg_cfg  Pointer to structure containing qpg values.
+ */
+int cvmx_pki_read_qpg_entry(int node, int offset,
+			    struct cvmx_pki_qpg_config *qpg_cfg)
+{
+	cvmx_pki_qpg_tblx_t qpg_tbl;
+
+	if (offset >= CVMX_PKI_NUM_QPG_ENTRY) {
+		debug("ERROR: qpg offset %d is >= 2048\n", offset);
+		return -1;
+	}
+	qpg_tbl.u64 = csr_rd_node(node, CVMX_PKI_QPG_TBLX(offset));
+	qpg_cfg->aura_num = qpg_tbl.s.laura;
+	qpg_cfg->port_add = qpg_tbl.s.padd;
+	qpg_cfg->grp_ok = qpg_tbl.s.grp_ok;
+	qpg_cfg->grp_bad = qpg_tbl.s.grp_bad;
+	qpg_cfg->grptag_ok = qpg_tbl.s.grptag_ok;
+	qpg_cfg->grptag_bad = qpg_tbl.s.grptag_bad;
+	return 0;
+}
+
+/**
+ * This function writes qpg entry at specified offset in qpg table.
+ *
+ * @param node  Node number.
+ * @param offset  Offset in qpg table to read from.
+ * @param qpg_cfg  Pointer to structure containing qpg values.
+ */
+void cvmx_pki_write_qpg_entry(int node, int offset,
+			      struct cvmx_pki_qpg_config *qpg_cfg)
+{
+	cvmx_pki_qpg_tblx_t qpg_tbl;
+
+	qpg_tbl.u64 = csr_rd_node(node, CVMX_PKI_QPG_TBLX(offset));
+	qpg_tbl.s.padd = qpg_cfg->port_add;
+	qpg_tbl.s.laura = qpg_cfg->aura_num;
+	qpg_tbl.s.grp_ok = qpg_cfg->grp_ok;
+	qpg_tbl.s.grp_bad = qpg_cfg->grp_bad;
+	qpg_tbl.s.grptag_ok = qpg_cfg->grptag_ok;
+	qpg_tbl.s.grptag_bad = qpg_cfg->grptag_bad;
+	csr_wr_node(node, CVMX_PKI_QPG_TBLX(offset), qpg_tbl.u64);
+}
+
+/**
+ * This function writes pcam entry at given offset in pcam table in hardware
+ *
+ * @param node  Node number.
+ * @param index  Offset in pcam table.
+ * @param cluster_mask	Mask of clusters in which to write pcam entry.
+ * @param input  Input keys to pcam match passed as struct.
+ * @param action  PCAM match action passed as struct.
+ */
+int cvmx_pki_pcam_write_entry(int node, int index, uint64_t cluster_mask,
+			      struct cvmx_pki_pcam_input input,
+			      struct cvmx_pki_pcam_action action)
+{
+	int bank;
+	unsigned int cluster = 0;
+	cvmx_pki_clx_pcamx_termx_t term;
+	cvmx_pki_clx_pcamx_matchx_t match;
+	cvmx_pki_clx_pcamx_actionx_t act;
+
+	if (index >= CVMX_PKI_TOTAL_PCAM_ENTRY) {
+		debug("\nERROR: Invalid pcam entry %d\n", index);
+		return -1;
+	}
+	bank = (int)(input.field & 0x01);
+	while (cluster < CVMX_PKI_NUM_CLUSTER) {
+		if (cluster_mask & (0x01L << cluster)) {
+			term.u64 = csr_rd_node(
+				node,
+				CVMX_PKI_CLX_PCAMX_TERMX(cluster, bank, index));
+			term.s.valid = 0;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PCAMX_TERMX(cluster, bank,
+							     index),
+				    term.u64);
+			match.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_PCAMX_MATCHX(cluster, bank,
+								index));
+			match.s.data1 = input.data & input.data_mask;
+			match.s.data0 = (~input.data) & input.data_mask;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PCAMX_MATCHX(cluster, bank,
+							      index),
+				    match.u64);
+
+			act.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_PCAMX_ACTIONX(cluster, bank,
+								 index));
+			act.s.pmc = action.parse_mode_chg;
+			act.s.style_add = action.style_add;
+			act.s.pf = action.parse_flag_set;
+			act.s.setty = action.layer_type_set;
+			act.s.advance = action.pointer_advance;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PCAMX_ACTIONX(cluster, bank,
+							       index),
+				    act.u64);
+
+			term.u64 = csr_rd_node(
+				node,
+				CVMX_PKI_CLX_PCAMX_TERMX(cluster, bank, index));
+			term.s.term1 = input.field & input.field_mask;
+			term.s.term0 = (~input.field) & input.field_mask;
+			term.s.style1 = input.style & input.style_mask;
+			term.s.style0 = (~input.style) & input.style_mask;
+			term.s.valid = 1;
+			csr_wr_node(node,
+				    CVMX_PKI_CLX_PCAMX_TERMX(cluster, bank,
+							     index),
+				    term.u64);
+		}
+		cluster++;
+	}
+	return 0;
+}
+
+/**
+ * Enables/Disabled QoS (RED Drop, Tail Drop & backpressure) for the PKI aura.
+ *
+ * @param node  Node number
+ * @param aura  To enable/disable QoS on.
+ * @param ena_red  Enable/Disable RED drop between pass and drop level
+ *    1-enable 0-disable
+ * @param ena_drop  Enable/disable tail drop when max drop level exceeds
+ *    1-enable 0-disable
+ * @param ena_bp  Enable/Disable asserting backpressure on bpid when max
+ *    DROP level exceeds.
+ *    1-enable 0-disable
+ */
+int cvmx_pki_enable_aura_qos(int node, int aura, bool ena_red, bool ena_drop,
+			     bool ena_bp)
+{
+	cvmx_pki_aurax_cfg_t aura_cfg;
+
+	if (aura >= CVMX_PKI_NUM_AURA) {
+		debug("ERROR: %s aura = %d\n", __func__, aura);
+		return -1;
+	}
+	aura_cfg.u64 = csr_rd_node(node, CVMX_PKI_AURAX_CFG(aura));
+	aura_cfg.s.ena_red = ena_red;
+	aura_cfg.s.ena_drop = ena_drop;
+	aura_cfg.s.ena_bp = ena_bp;
+	csr_wr_node(node, CVMX_PKI_AURAX_CFG(aura), aura_cfg.u64);
+	return 0;
+}
+
+/**
+ * Configures the bpid on which, specified aura will assert backpressure.
+ * Each bpid receives backpressure from auras.
+ * Multiple auras can backpressure single bpid.
+ *
+ * @param node  Node number.
+ * @param aura  Number which will assert backpressure on that bpid.
+ * @param bpid  To assert backpressure on.
+ */
+int cvmx_pki_write_aura_bpid(int node, int aura, int bpid)
+{
+	int i, cnt, ena_bp;
+	cvmx_pki_aurax_cfg_t aura_cfg;
+
+	if (aura >= CVMX_PKI_NUM_AURA || bpid >= CVMX_PKI_NUM_BPID) {
+		debug("ERROR: aura=%d or bpid=%d is out or range\n", aura,
+		      bpid);
+		return -1;
+	}
+	if (OCTEON_IS_MODEL(OCTEON_CN78XX)) {
+		/* Workaround for Errata PKI-24364:
+		 * Inform about assigning the same BPID to multiple auras
+		 * having different ENA_BP.
+		 */
+		aura_cfg.u64 = csr_rd_node(node, CVMX_PKI_AURAX_CFG(aura));
+		ena_bp = aura_cfg.s.ena_bp;
+		for (i = 0, cnt = 1; i < CVMX_PKI_NUM_AURA; i++) {
+			if (i == aura)
+				continue;
+			aura_cfg.u64 = csr_rd_node(node, CVMX_PKI_AURAX_CFG(i));
+			if (aura_cfg.s.bpid == bpid &&
+			    aura_cfg.s.ena_bp != ena_bp)
+				cnt++;
+		}
+		if (cnt > 1)
+			debug("WARNING: BPID(%d) is used by %d AURAs.\n"
+			      "\tEnable|disable backpressure for all AURAs on this BPID.\n",
+			      bpid, cnt);
+	}
+	aura_cfg.u64 = csr_rd_node(node, CVMX_PKI_AURAX_CFG(aura));
+	aura_cfg.s.bpid = bpid;
+	csr_wr_node(node, CVMX_PKI_AURAX_CFG(aura), aura_cfg.u64);
+	return 0;
+}
+
+/**
+ * Configures the channel which will receive backpressure
+ * from the specified bpid.
+ * Each channel listens for backpressure on a specific bpid.
+ * Each bpid can backpressure multiple channels.
+ *
+ * @param node  Node number.
+ * @param bpid  BPID from which, channel will receive backpressure.
+ * @param channel  Channel number to receive backpressue.
+ */
+int cvmx_pki_write_channel_bpid(int node, int channel, int bpid)
+{
+	cvmx_pki_chanx_cfg_t chan_cfg;
+
+	if (channel >= CVMX_PKI_NUM_CHANNEL || bpid >= CVMX_PKI_NUM_BPID) {
+		debug("ERROR: %s channel = %d bpid = %d\n", __func__, channel,
+		      bpid);
+		return -1;
+	}
+	chan_cfg.u64 = csr_rd_node(node, CVMX_PKI_CHANX_CFG(channel));
+	chan_cfg.s.bpid = bpid;
+	csr_wr_node(node, CVMX_PKI_CHANX_CFG(channel), chan_cfg.u64);
+	return 0;
+}
+
+/**
+ * This function gives the initial style used by that pkind.
+ *
+ * @param node	Node number.
+ * @param pkind	PKIND number.
+ */
+int cvmx_pki_get_pkind_style(int node, int pkind)
+{
+	int cluster = 0;
+	cvmx_pki_clx_pkindx_style_t style;
+
+	style.u64 =
+		csr_rd_node(node, CVMX_PKI_CLX_PKINDX_STYLE(pkind, cluster));
+	return style.s.style;
+}
+
+/**
+ * This function sets the wqe buffer mode. First packet data buffer can
+ * reside either in same buffer as wqe OR it can go in separate buffer.
+ * If used the later mode, make sure software allocate enough buffers to
+ * now have wqe separate from packet data.
+ *
+ * @param node  Node number.
+ * @param style	 Style to configure.
+ * @param pkt_outside_wqe	0 = The packet link pointer will be at word [FIRST_SKIP]
+ *    immediately followed by packet data, in the same buffer as the work queue entry.
+ *    1 = The packet link pointer will be at word [FIRST_SKIP] in a new buffer
+ *    separate from the work queue entry. Words following the WQE in the same
+ *    cache line will be zeroed, other lines in the buffer will not be modified
+ *    and will retain stale data (from the buffer’s previous use). This setting may
+ *    decrease the peak PKI performance by up to half on small packets.
+ */
+void cvmx_pki_set_wqe_mode(int node, uint64_t style, bool pkt_outside_wqe)
+{
+	cvmx_pki_stylex_buf_t style_buf;
+
+	style_buf.u64 = csr_rd_node(node, CVMX_PKI_STYLEX_BUF(style));
+	style_buf.s.dis_wq_dat = pkt_outside_wqe;
+	csr_wr_node(node, CVMX_PKI_STYLEX_BUF(style), style_buf.u64);
+}
+
+/**
+ * This function sets the Packet mode of all ports and styles to little-endian.
+ * It Changes write operations of packet data to L2C to be in little-endian.
+ * Does not change the WQE header format, which is properly endian neutral.
+ *
+ * @param node  Node number.
+ * @param style  Style to configure.
+ */
+void cvmx_pki_set_little_endian(int node, uint64_t style)
+{
+	cvmx_pki_stylex_buf_t style_buf;
+
+	style_buf.u64 = csr_rd_node(node, CVMX_PKI_STYLEX_BUF(style));
+	style_buf.s.pkt_lend = 1;
+	csr_wr_node(node, CVMX_PKI_STYLEX_BUF(style), style_buf.u64);
+}
+
+/**
+ * Enables/Disables fcs check and fcs stripping on the pkind.
+ *
+ * @param node  Node number
+ * @param pknd  PKIND to apply settings on.
+ * @param fcs_chk  Enable/disable fcs check.
+ *    1 = enable fcs error check.
+ *    0 = disable fcs error check.
+ * @param fcs_strip	 Strip L2 FCS bytes from packet, decrease WQE[LEN] by 4 bytes
+ *    1 = strip L2 FCS.
+ *    0 = Do not strip L2 FCS.
+ */
+void cvmx_pki_endis_fcs_check(int node, int pknd, bool fcs_chk, bool fcs_strip)
+{
+	int style;
+	unsigned int cluster;
+	cvmx_pki_clx_pkindx_style_t pstyle;
+	cvmx_pki_clx_stylex_cfg_t style_cfg;
+
+	/* Valudate PKIND # */
+	if (pknd >= CVMX_PKI_NUM_PKIND) {
+		printf("%s: PKIND %d out of range\n", __func__, pknd);
+		return;
+	}
+
+	for (cluster = 0; cluster < CVMX_PKI_NUM_CLUSTER; cluster++) {
+		pstyle.u64 = csr_rd_node(
+			node, CVMX_PKI_CLX_PKINDX_STYLE(pknd, cluster));
+		style = pstyle.s.style;
+		/* Validate STYLE # */
+		if (style >= CVMX_PKI_NUM_INTERNAL_STYLE)
+			continue;
+		style_cfg.u64 = csr_rd_node(
+			node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster));
+		style_cfg.s.fcs_chk = fcs_chk;
+		style_cfg.s.fcs_strip = fcs_strip;
+		csr_wr_node(node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster),
+			    style_cfg.u64);
+	}
+}
+
+/**
+ * Enables/Disables l2 length error check and max & min frame length checks
+ *
+ * @param node  Node number
+ * @param pknd  PKIND to disable error for.
+ * @param l2len_err  L2 length error check enable.
+ * @param maxframe_err  Max frame error check enable.
+ * @param minframe_err  Min frame error check enable.
+ *    1 = Enabel err checks
+ *    0 = Disable error checks
+ */
+void cvmx_pki_endis_l2_errs(int node, int pknd, bool l2len_err,
+			    bool maxframe_err, bool minframe_err)
+{
+	int style;
+	unsigned int cluster;
+	cvmx_pki_clx_pkindx_style_t pstyle;
+	cvmx_pki_clx_stylex_cfg_t style_cfg;
+
+	/* Valudate PKIND # */
+	if (pknd >= CVMX_PKI_NUM_PKIND) {
+		printf("%s: PKIND %d out of range\n", __func__, pknd);
+		return;
+	}
+
+	for (cluster = 0; cluster < CVMX_PKI_NUM_CLUSTER; cluster++) {
+		pstyle.u64 = csr_rd_node(
+			node, CVMX_PKI_CLX_PKINDX_STYLE(pknd, cluster));
+		style = pstyle.s.style;
+		/* Validate STYLE # */
+		if (style >= CVMX_PKI_NUM_INTERNAL_STYLE)
+			continue;
+		style_cfg.u64 = csr_rd_node(
+			node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster));
+		style_cfg.s.lenerr_en = l2len_err;
+		style_cfg.s.maxerr_en = maxframe_err;
+		style_cfg.s.minerr_en = minframe_err;
+		csr_wr_node(node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster),
+			    style_cfg.u64);
+	}
+}
+
+/**
+ * Disables maximum & minimum frame length checks
+ *
+ * @param node  Node number.
+ * @param pknd  PKIND to disable error for.
+ */
+void cvmx_pki_dis_frame_len_chk(int node, int pknd)
+{
+	int style;
+	unsigned int cluster = 0;
+	cvmx_pki_clx_pkindx_style_t pstyle;
+	cvmx_pki_clx_stylex_cfg_t style_cfg;
+
+	while (cluster < CVMX_PKI_NUM_CLUSTER) {
+		pstyle.u64 = csr_rd_node(
+			node, CVMX_PKI_CLX_PKINDX_STYLE(pknd, cluster));
+		style = pstyle.s.style;
+		style_cfg.u64 = csr_rd_node(
+			node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster));
+		style_cfg.s.maxerr_en = 0;
+		style_cfg.s.minerr_en = 0;
+		csr_wr_node(node, CVMX_PKI_CLX_STYLEX_CFG(style, cluster),
+			    style_cfg.u64);
+		cluster++;
+	}
+}
+
+/**
+ * This function shows the qpg table entries, read directly from hardware.
+ *
+ * @param node	Node number
+ * @param num_entry  Number of entries to show
+ */
+void cvmx_pki_show_qpg_entries(int node, uint16_t num_entry)
+{
+	int index;
+	cvmx_pki_qpg_tblx_t qpg_tbl;
+
+	if (num_entry > CVMX_PKI_NUM_QPG_ENTRY)
+		num_entry = CVMX_PKI_NUM_QPG_ENTRY;
+	for (index = 0; index < num_entry; index++) {
+		qpg_tbl.u64 = csr_rd_node(node, CVMX_PKI_QPG_TBLX(index));
+		debug("\n%d	", index);
+		debug("PADD %-16lu", (unsigned long)qpg_tbl.s.padd);
+		debug("GRP_OK %-16lu", (unsigned long)qpg_tbl.s.grp_ok);
+		debug("GRP_BAD %-16lu", (unsigned long)qpg_tbl.s.grp_bad);
+		debug("LAURA %-16lu", (unsigned long)qpg_tbl.s.laura);
+	}
+}
+
+/**
+ * This function shows the pcam table in raw format,
+ * read directly from hardware.
+ *
+ * @param node  Node number
+ */
+void cvmx_pki_show_pcam_entries(int node)
+{
+	int cluster;
+	int index;
+	int bank;
+
+	for (cluster = 0; cluster < (int)CVMX_PKI_NUM_CLUSTER; cluster++) {
+		for (bank = 0; bank < 2; bank++) {
+			debug("\n--------------Cluster %1d Bank %1d-------------\n",
+			      cluster, bank);
+			debug("index         TERM                 DATA,                ACTION");
+			for (index = 0; index < CVMX_PKI_NUM_PCAM_ENTRY;
+			     index++) {
+				debug("\n%d", index);
+				debug("             %-16lx",
+				      (unsigned long)csr_rd_node(
+					      node,
+					      CVMX_PKI_CLX_PCAMX_TERMX(
+						      cluster, bank, index)));
+				debug("     %-16lx",
+				      (unsigned long)csr_rd_node(
+					      node,
+					      CVMX_PKI_CLX_PCAMX_MATCHX(
+						      cluster, bank, index)));
+				debug("     %-16lx",
+				      (unsigned long)csr_rd_node(
+					      node,
+					      CVMX_PKI_CLX_PCAMX_ACTIONX(
+						      cluster, bank, index)));
+			}
+		}
+	}
+}
+
+/**
+ * This function shows the valid entries in readable format,
+ * read directly from hardware.
+ *
+ * @param node  Node number.
+ */
+void cvmx_pki_show_valid_pcam_entries(int node)
+{
+	int cluster;
+	int index;
+	int bank;
+	cvmx_pki_clx_pcamx_termx_t term;
+	cvmx_pki_clx_pcamx_matchx_t match;
+	cvmx_pki_clx_pcamx_actionx_t act;
+
+	for (cluster = 0; cluster < (int)CVMX_PKI_NUM_CLUSTER; cluster++) {
+		for (bank = 0; bank < 2; bank++) {
+			debug("\n--------------Cluster %1d Bank %1d---------------------\n",
+			      cluster, bank);
+			debug("%-10s%-17s%-19s%-18s", "index", "TERM1:TERM0",
+			      "Style1:Style0", "Data1:Data0");
+			debug("%-6s", "ACTION[pmc:style_add:pf:setty:advance]");
+			for (index = 0; index < CVMX_PKI_NUM_PCAM_ENTRY;
+			     index++) {
+				term.u64 = csr_rd_node(
+					node, CVMX_PKI_CLX_PCAMX_TERMX(
+						      cluster, bank, index));
+				if (term.s.valid) {
+					match.u64 = csr_rd_node(
+						node,
+						CVMX_PKI_CLX_PCAMX_MATCHX(
+							cluster, bank, index));
+					act.u64 = csr_rd_node(
+						node,
+						CVMX_PKI_CLX_PCAMX_ACTIONX(
+							cluster, bank, index));
+					debug("\n%-13d", index);
+					debug("%-2x:%x", term.s.term1,
+					      term.s.term0);
+					debug("	      %-2x:%x", term.s.style1,
+					      term.s.style0);
+					debug("        %-8x:%x", match.s.data1,
+					      match.s.data0);
+					debug("            %-2x:%-2x       :%-1x :%2x   :%-2x",
+					      act.s.pmc, act.s.style_add,
+					      act.s.pf, act.s.setty,
+					      act.s.advance);
+				}
+			}
+		}
+	}
+}
+
+/**
+ * This function shows the pkind attributes in readable format,
+ * read directly from hardware.
+ *
+ * @param node  Node number
+ * @param pkind  PKIND info to print
+ */
+void cvmx_pki_show_pkind_attributes(int node, int pkind)
+{
+	unsigned int cluster = 0;
+	int index;
+	cvmx_pki_pkindx_icgsel_t icgsel;
+	cvmx_pki_clx_pkindx_style_t pstyle;
+	cvmx_pki_icgx_cfg_t icg_cfg;
+	cvmx_pki_clx_stylex_cfg_t style_cfg;
+	cvmx_pki_clx_stylex_alg_t style_alg;
+
+	if (pkind >= CVMX_PKI_NUM_PKIND) {
+		debug("ERROR: PKIND %d is beyond range\n", pkind);
+		return;
+	}
+	debug("Showing stats for pkind %d------------------\n", pkind);
+	icgsel.u64 = csr_rd_node(node, CVMX_PKI_PKINDX_ICGSEL(pkind));
+	debug("cluster group:	%d\n", icgsel.s.icg);
+	icg_cfg.u64 = csr_rd_node(node, CVMX_PKI_ICGX_CFG(icgsel.s.icg));
+	debug("cluster mask of the group:	0x%x\n", icg_cfg.s.clusters);
+
+	while (cluster < CVMX_PKI_NUM_CLUSTER) {
+		if (icg_cfg.s.clusters & (0x01L << cluster)) {
+			debug("pkind %d config 0x%llx\n", pkind,
+			      (unsigned long long)csr_rd_node(
+				      node,
+				      CVMX_PKI_CLX_PKINDX_CFG(pkind, cluster)));
+			pstyle.u64 = csr_rd_node(
+				node,
+				CVMX_PKI_CLX_PKINDX_STYLE(pkind, cluster));
+			debug("initial parse Mode: %d\n", pstyle.s.pm);
+			debug("initial_style: %d\n", pstyle.s.style);
+			style_alg.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_STYLEX_ALG(pstyle.s.style,
+							      cluster));
+			debug("style_alg: 0x%llx\n",
+			      (unsigned long long)style_alg.u64);
+			style_cfg.u64 = csr_rd_node(
+				node, CVMX_PKI_CLX_STYLEX_CFG(pstyle.s.style,
+							      cluster));
+			debug("style_cfg: 0x%llx\n",
+			      (unsigned long long)style_cfg.u64);
+			debug("style_cfg2: 0x%llx\n",
+			      (unsigned long long)csr_rd_node(
+				      node, CVMX_PKI_CLX_STYLEX_CFG2(
+						    pstyle.s.style, cluster)));
+			debug("style_buf: 0x%llx\n",
+			      (unsigned long long)csr_rd_node(
+				      node,
+				      CVMX_PKI_STYLEX_BUF(pstyle.s.style)));
+			break;
+		}
+	}
+	debug("qpg base: %d\n", style_cfg.s.qpg_base);
+	debug("qpg qos: %d\n", style_alg.s.qpg_qos);
+	for (index = 0; index < 8; index++) {
+		debug("qpg index %d: 0x%llx\n", (index + style_cfg.s.qpg_base),
+		      (unsigned long long)csr_rd_node(
+			      node,
+			      CVMX_PKI_QPG_TBLX(style_cfg.s.qpg_base + index)));
+	}
+}
+
+static void readcorrect(int node, u64 value, u64 addr)
+{
+	int cnt = 0;
+
+	while (value >= (1ull << 48) && cnt++ < 20)
+		value = csr_rd_node(node, addr);
+	if (cnt >= 20)
+		debug("count stuck for 0x%llx\n", (unsigned long long)addr);
+}
+
+/**
+ * Get the status counters for index from PKI.
+ *
+ * @param node  Node number
+ * @param index  PKIND number (if PKI_STATS_CTL:mode=0) or
+ *    style(flow) number (if PKI_STATS_CTL:mode=1)
+ * @param status   Where to put the results.
+ */
+void cvmx_pki_get_stats(int node, int index, struct cvmx_pki_port_stats *status)
+{
+	cvmx_pki_statx_stat0_t stat0;
+	cvmx_pki_statx_stat1_t stat1;
+	cvmx_pki_statx_stat2_t stat2;
+	cvmx_pki_statx_stat3_t stat3;
+	cvmx_pki_statx_stat4_t stat4;
+	cvmx_pki_statx_stat5_t stat5;
+	cvmx_pki_statx_stat6_t stat6;
+	cvmx_pki_statx_stat7_t stat7;
+	cvmx_pki_statx_stat8_t stat8;
+	cvmx_pki_statx_stat9_t stat9;
+	cvmx_pki_statx_stat10_t stat10;
+	cvmx_pki_statx_stat11_t stat11;
+	cvmx_pki_statx_stat14_t stat14;
+	cvmx_pki_statx_stat15_t stat15;
+	cvmx_pki_statx_stat16_t stat16;
+	cvmx_pki_statx_stat17_t stat17;
+	cvmx_pki_statx_hist0_t hist0;
+	cvmx_pki_statx_hist1_t hist1;
+	cvmx_pki_statx_hist2_t hist2;
+	cvmx_pki_statx_hist3_t hist3;
+	cvmx_pki_statx_hist4_t hist4;
+	cvmx_pki_statx_hist5_t hist5;
+	cvmx_pki_statx_hist6_t hist6;
+	cvmx_pki_pkndx_inb_stat0_t inb_stat0;
+	cvmx_pki_pkndx_inb_stat1_t inb_stat1;
+	cvmx_pki_pkndx_inb_stat2_t inb_stat2;
+
+	/* Accessing PKI stat registers can timeout based on the Errata
+	 * PKI-20775, disable SLI_INT_SUM[RML_TO] before reading the stats
+	 * enable back after clearing the interrupt.
+	 */
+	cvmx_error_intsn_disable_v3(node, 0x1f000);
+	stat0.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT0(index));
+	readcorrect(node, stat0.u64, CVMX_PKI_STATX_STAT0(index));
+
+	stat1.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT1(index));
+	readcorrect(node, stat1.u64, CVMX_PKI_STATX_STAT1(index));
+
+	stat2.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT2(index));
+	readcorrect(node, stat2.u64, CVMX_PKI_STATX_STAT2(index));
+
+	stat3.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT3(index));
+	readcorrect(node, stat3.u64, CVMX_PKI_STATX_STAT3(index));
+
+	stat4.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT4(index));
+	readcorrect(node, stat4.u64, CVMX_PKI_STATX_STAT4(index));
+
+	stat5.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT5(index));
+	readcorrect(node, stat5.u64, CVMX_PKI_STATX_STAT5(index));
+
+	stat6.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT6(index));
+	readcorrect(node, stat6.u64, CVMX_PKI_STATX_STAT6(index));
+
+	stat7.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT7(index));
+	readcorrect(node, stat7.u64, CVMX_PKI_STATX_STAT7(index));
+
+	stat8.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT8(index));
+	readcorrect(node, stat8.u64, CVMX_PKI_STATX_STAT8(index));
+
+	stat9.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT9(index));
+	readcorrect(node, stat9.u64, CVMX_PKI_STATX_STAT9(index));
+
+	stat10.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT10(index));
+	readcorrect(node, stat10.u64, CVMX_PKI_STATX_STAT10(index));
+
+	stat11.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT11(index));
+	readcorrect(node, stat11.u64, CVMX_PKI_STATX_STAT11(index));
+
+	stat14.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT14(index));
+	readcorrect(node, stat14.u64, CVMX_PKI_STATX_STAT14(index));
+
+	stat15.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT15(index));
+	readcorrect(node, stat15.u64, CVMX_PKI_STATX_STAT15(index));
+
+	stat16.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT16(index));
+	readcorrect(node, stat16.u64, CVMX_PKI_STATX_STAT16(index));
+
+	stat17.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT17(index));
+	readcorrect(node, stat17.u64, CVMX_PKI_STATX_STAT17(index));
+
+	hist0.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST0(index));
+	readcorrect(node, hist0.u64, CVMX_PKI_STATX_HIST0(index));
+
+	hist1.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST1(index));
+	readcorrect(node, hist1.u64, CVMX_PKI_STATX_HIST1(index));
+
+	hist2.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST2(index));
+	readcorrect(node, hist2.u64, CVMX_PKI_STATX_HIST2(index));
+
+	hist3.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST3(index));
+	readcorrect(node, hist3.u64, CVMX_PKI_STATX_HIST3(index));
+
+	hist4.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST4(index));
+	readcorrect(node, hist4.u64, CVMX_PKI_STATX_HIST4(index));
+
+	hist5.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST5(index));
+	readcorrect(node, hist5.u64, CVMX_PKI_STATX_HIST5(index));
+
+	hist6.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST6(index));
+	readcorrect(node, hist6.u64, CVMX_PKI_STATX_HIST6(index));
+
+	inb_stat0.u64 = csr_rd_node(node, CVMX_PKI_PKNDX_INB_STAT0(index));
+	inb_stat1.u64 = csr_rd_node(node, CVMX_PKI_PKNDX_INB_STAT1(index));
+	inb_stat2.u64 = csr_rd_node(node, CVMX_PKI_PKNDX_INB_STAT2(index));
+
+	status->dropped_octets = stat4.s.drp_octs;
+	status->dropped_packets = stat3.s.drp_pkts;
+	status->octets = stat1.s.octs;
+	status->pci_raw_packets = stat2.s.raw;
+	status->packets = stat0.s.pkts;
+	status->multicast_packets = stat6.s.mcast;
+	status->broadcast_packets = stat5.s.bcast;
+	status->len_64_packets = hist0.s.h1to63;
+	status->len_65_127_packets = hist1.s.h64to127;
+	status->len_128_255_packets = hist2.s.h128to255;
+	status->len_256_511_packets = hist3.s.h256to511;
+	status->len_512_1023_packets = hist4.s.h512to1023;
+	status->len_1024_1518_packets = hist5.s.h1024to1518;
+	status->len_1519_max_packets = hist6.s.h1519;
+	status->fcs_align_err_packets = stat7.s.fcs;
+	status->runt_packets = stat9.s.undersz;
+	status->runt_crc_packets = stat8.s.frag;
+	status->oversize_packets = stat11.s.oversz;
+	status->oversize_crc_packets = stat10.s.jabber;
+	status->mcast_l2_red_packets = stat15.s.drp_mcast;
+	status->bcast_l2_red_packets = stat14.s.drp_bcast;
+	status->mcast_l3_red_packets = stat17.s.drp_mcast;
+	status->bcast_l3_red_packets = stat16.s.drp_bcast;
+	status->inb_packets = inb_stat0.s.pkts;
+	status->inb_octets = inb_stat1.s.octs;
+	status->inb_errors = inb_stat2.s.errs;
+	/* Enable SLI_INT_SUM[RML_TO] interrupt after clear the pending interrupt. */
+	csr_wr_node(node, CVMX_CIU3_ISCX_W1C(0x1f000), 1);
+	cvmx_error_intsn_enable_v3(node, 0x1f000);
+}
+
+/**
+ * Clear the statistics counters for a port.
+ *
+ * @param node  Node number
+ * @param port  Port number (ipd_port) to get statistics for.
+ *    Make sure PKI_STATS_CTL:mode is set to 0 for collecting per port/pkind stats.
+ */
+void cvmx_pki_clear_port_stats(int node, uint64_t port)
+{
+	int xipd = cvmx_helper_node_to_ipd_port(node, port);
+	int xiface = cvmx_helper_get_interface_num(xipd);
+	int index = cvmx_helper_get_interface_index_num(port);
+	int pknd = cvmx_helper_get_pknd(xiface, index);
+
+	cvmx_pki_statx_stat0_t stat0;
+	cvmx_pki_statx_stat1_t stat1;
+	cvmx_pki_statx_stat2_t stat2;
+	cvmx_pki_statx_stat3_t stat3;
+	cvmx_pki_statx_stat4_t stat4;
+	cvmx_pki_statx_stat5_t stat5;
+	cvmx_pki_statx_stat6_t stat6;
+	cvmx_pki_statx_stat7_t stat7;
+	cvmx_pki_statx_stat8_t stat8;
+	cvmx_pki_statx_stat9_t stat9;
+	cvmx_pki_statx_stat10_t stat10;
+	cvmx_pki_statx_stat11_t stat11;
+	cvmx_pki_statx_stat14_t stat14;
+	cvmx_pki_statx_stat15_t stat15;
+	cvmx_pki_statx_stat16_t stat16;
+	cvmx_pki_statx_stat17_t stat17;
+	cvmx_pki_statx_hist0_t hist0;
+	cvmx_pki_statx_hist1_t hist1;
+	cvmx_pki_statx_hist2_t hist2;
+	cvmx_pki_statx_hist3_t hist3;
+	cvmx_pki_statx_hist4_t hist4;
+	cvmx_pki_statx_hist5_t hist5;
+	cvmx_pki_statx_hist6_t hist6;
+	cvmx_pki_pkndx_inb_stat0_t inb_stat0;
+	cvmx_pki_pkndx_inb_stat1_t inb_stat1;
+	cvmx_pki_pkndx_inb_stat2_t inb_stat2;
+
+	stat0.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT0(pknd));
+	stat1.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT1(pknd));
+	stat2.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT2(pknd));
+	stat3.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT3(pknd));
+	stat4.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT4(pknd));
+	stat5.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT5(pknd));
+	stat6.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT6(pknd));
+	stat7.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT7(pknd));
+	stat8.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT8(pknd));
+	stat9.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT9(pknd));
+	stat10.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT10(pknd));
+	stat11.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT11(pknd));
+	stat14.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT14(pknd));
+	stat15.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT15(pknd));
+	stat16.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT16(pknd));
+	stat17.u64 = csr_rd_node(node, CVMX_PKI_STATX_STAT17(pknd));
+	hist0.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST0(pknd));
+	hist1.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST1(pknd));
+	hist2.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST2(pknd));
+	hist3.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST3(pknd));
+	hist4.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST4(pknd));
+	hist5.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST5(pknd));
+	hist6.u64 = csr_rd_node(node, CVMX_PKI_STATX_HIST6(pknd));
+	inb_stat0.u64 = csr_rd_node(node, CVMX_PKI_PKNDX_INB_STAT0(pknd));
+	inb_stat1.u64 = csr_rd_node(node, CVMX_PKI_PKNDX_INB_STAT1(pknd));
+	inb_stat2.u64 = csr_rd_node(node, CVMX_PKI_PKNDX_INB_STAT2(pknd));
+
+	stat4.s.drp_octs = 0;
+	stat3.s.drp_pkts = 0;
+	stat1.s.octs = 0;
+	stat2.s.raw = 0;
+	stat0.s.pkts = 0;
+	stat6.s.mcast = 0;
+	stat5.s.bcast = 0;
+	hist0.s.h1to63 = 0;
+	hist1.s.h64to127 = 0;
+	hist2.s.h128to255 = 0;
+	hist3.s.h256to511 = 0;
+	hist4.s.h512to1023 = 0;
+	hist5.s.h1024to1518 = 0;
+	hist6.s.h1519 = 0;
+	stat7.s.fcs = 0;
+	stat9.s.undersz = 0;
+	stat8.s.frag = 0;
+	stat11.s.oversz = 0;
+	stat10.s.jabber = 0;
+	stat15.s.drp_mcast = 0;
+	stat14.s.drp_bcast = 0;
+	stat17.s.drp_mcast = 0;
+	stat16.s.drp_bcast = 0;
+	inb_stat0.s.pkts = 0;
+	inb_stat1.s.octs = 0;
+	inb_stat2.s.errs = 0;
+
+	csr_wr_node(node, CVMX_PKI_STATX_STAT0(pknd), stat0.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT1(pknd), stat1.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT2(pknd), stat2.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT3(pknd), stat3.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT4(pknd), stat4.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT5(pknd), stat5.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT6(pknd), stat6.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT7(pknd), stat7.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT8(pknd), stat8.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT9(pknd), stat9.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT10(pknd), stat10.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT11(pknd), stat11.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT14(pknd), stat14.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT15(pknd), stat15.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT16(pknd), stat16.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_STAT17(pknd), stat17.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_HIST0(pknd), hist0.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_HIST1(pknd), hist1.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_HIST2(pknd), hist2.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_HIST3(pknd), hist3.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_HIST4(pknd), hist4.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_HIST5(pknd), hist5.u64);
+	csr_wr_node(node, CVMX_PKI_STATX_HIST6(pknd), hist6.u64);
+	csr_wr_node(node, CVMX_PKI_PKNDX_INB_STAT0(pknd), inb_stat0.u64);
+	csr_wr_node(node, CVMX_PKI_PKNDX_INB_STAT1(pknd), inb_stat1.u64);
+	csr_wr_node(node, CVMX_PKI_PKNDX_INB_STAT2(pknd), inb_stat2.u64);
+}
-- 
2.35.1



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