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[144.49.247.120]) by smtp-relay.gmail.com with ESMTPS id 98e67ed59e1d1-33e248a8df1sm578a91.0.2025.10.21.11.57.25 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 21 Oct 2025 11:57:26 -0700 (PDT) X-Relaying-Domain: broadcom.com X-CFilter-Loop: Reflected Received: by mail-pl1-f198.google.com with SMTP id d9443c01a7336-2924b3b9d47so35559985ad.0 for ; Tue, 21 Oct 2025 11:57:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; t=1761073044; x=1761677844; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=NWoSr4KeytGd4GizxVUX2X+fYsf91kn30CgFt6sPJQ0=; b=XRILL3EDKasT7/lD2e5f3rWGFC8H802xVgivuN5r3rzhntxLqLdmu0olpEi5MGa4m3 chnbBwvHarKqRBbu5TskiWYL2C9vyBhUnj2hblsXz+8Ni+ah8x+cSsgiKGPeZ111wlOW dULfHq88diU/cEnyeTvS1sdqW3LSvyUmPZcA0= X-Received: by 2002:a17:902:ce0e:b0:266:7871:37dc with SMTP id d9443c01a7336-290ca1216abmr254279865ad.36.1761073043898; Tue, 21 Oct 2025 11:57:23 -0700 (PDT) X-Received: by 2002:a17:902:ce0e:b0:266:7871:37dc with SMTP id d9443c01a7336-290ca1216abmr254279495ad.36.1761073043306; Tue, 21 Oct 2025 11:57:23 -0700 (PDT) Received: from KX3WTC9T54.dhcp.broadcom.net ([192.19.144.250]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29246fdc9cfsm116598155ad.45.2025.10.21.11.57.22 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 21 Oct 2025 11:57:22 -0700 (PDT) From: Manish Kurup To: dev@dpdk.org Cc: ajit.khaparde@broadcom.com, Shahaji Bhosle , Kishore Padmanabha Subject: [PATCH v4 34/57] net/bnxt/tf_ulp: ulp parser support to handle gre key Date: Tue, 21 Oct 2025 14:56:38 -0400 Message-Id: <20251021185701.71881-3-manish.kurup@broadcom.com> X-Mailer: git-send-email 2.39.5 (Apple Git-154) In-Reply-To: <20251021185701.71881-1-manish.kurup@broadcom.com> References: <20251021185701.71881-1-manish.kurup@broadcom.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org From: Shahaji Bhosle 1. Added a new handler to GRE key input from the parser 2. Add a new pattern to match on GRE with KEY id. Signed-off-by: Shahaji Bhosle Reviewed-by: Kishore Padmanabha --- drivers/net/bnxt/tf_ulp/ulp_rte_handler_tbl.c | 4 +- drivers/net/bnxt/tf_ulp/ulp_rte_parser.c | 45 ++++++++++++++++++- drivers/net/bnxt/tf_ulp/ulp_rte_parser.h | 5 +++ .../net/bnxt/tf_ulp/ulp_template_db_enum.h | 3 +- drivers/net/bnxt/tf_ulp/ulp_template_struct.h | 2 + 5 files changed, 55 insertions(+), 4 deletions(-) diff --git a/drivers/net/bnxt/tf_ulp/ulp_rte_handler_tbl.c b/drivers/net/bnxt/tf_ulp/ulp_rte_handler_tbl.c index 6e1115b985..4a7c7e437c 100644 --- a/drivers/net/bnxt/tf_ulp/ulp_rte_handler_tbl.c +++ b/drivers/net/bnxt/tf_ulp/ulp_rte_handler_tbl.c @@ -373,8 +373,8 @@ struct bnxt_ulp_rte_hdr_info ulp_hdr_info[] = { .proto_hdr_func = NULL }, [RTE_FLOW_ITEM_TYPE_GRE_KEY] = { - .hdr_type = BNXT_ULP_HDR_TYPE_NOT_SUPPORTED, - .proto_hdr_func = NULL + .hdr_type = BNXT_ULP_HDR_TYPE_SUPPORTED, + .proto_hdr_func = ulp_rte_gre_key_hdr_handler }, [RTE_FLOW_ITEM_TYPE_GTP_PSC] = { .hdr_type = BNXT_ULP_HDR_TYPE_NOT_SUPPORTED, diff --git a/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c b/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c index af7f8b7ab4..ceda1ff5ef 100644 --- a/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c +++ b/drivers/net/bnxt/tf_ulp/ulp_rte_parser.c @@ -31,6 +31,9 @@ #define ULP_UDP_PORT_GENEVE 6081 #define ULP_UDP_PORT_GENEVE_MASK 0xFFFF +/* GRE cks_rsvd0_ver bits */ +#define ULP_GRE_CKS_RSVD0_VER_HDR_KEY_BIT 0x2000 + /** * Geneve header first 16Bit * Version (2b), length of the options fields (6b), OAM packet (1b), @@ -1887,14 +1890,51 @@ ulp_rte_geneve_hdr_handler(const struct rte_flow_item *item, return BNXT_TF_RC_SUCCESS; } +/* Function to handle the parsing of RTE Flow item GRE Key Header. */ +int32_t +ulp_rte_gre_key_hdr_handler(const struct rte_flow_item *item, + struct ulp_rte_parser_params *params) +{ + const rte_be32_t *gre_key_spec = item->spec; + const rte_be32_t *gre_key_mask = item->mask; + rte_be32_t gre_key_full_mask = RTE_BE32(UINT32_MAX); + struct ulp_rte_hdr_bitmap *hdr_bitmap = ¶ms->hdr_bitmap; + uint32_t idx = 0; + uint32_t size; + + if (unlikely(ulp_rte_prsr_fld_size_validate(params, &idx, + BNXT_ULP_PROTO_HDR_GRE_KEY_NUM))) { + BNXT_DRV_DBG(ERR, "Error parsing protocol header"); + return BNXT_TF_RC_ERROR; + } + + if (unlikely(!(params->gre_cks_rsvd0_ver & RTE_BE16(ULP_GRE_CKS_RSVD0_VER_HDR_KEY_BIT)))) { + BNXT_DRV_DBG(ERR, "Error GRE K bit is not set"); + return BNXT_TF_RC_ERROR; + } + + if (gre_key_spec && !gre_key_mask) + gre_key_mask = &gre_key_full_mask; + + size = sizeof(uint32_t); + ulp_rte_prsr_fld_mask(params, &idx, size, + gre_key_spec, + gre_key_mask, + ULP_PRSR_ACT_DEFAULT); + + /* Update the hdr_bitmap with GRE */ + ULP_BITMAP_SET(hdr_bitmap->bits, BNXT_ULP_HDR_BIT_T_GRE_OPT); + return BNXT_TF_RC_SUCCESS; +} + /* Function to handle the parsing of RTE Flow item GRE Header. */ int32_t ulp_rte_gre_hdr_handler(const struct rte_flow_item *item, struct ulp_rte_parser_params *params) { + struct ulp_rte_hdr_bitmap *hdr_bitmap = ¶ms->hdr_bitmap; const struct rte_flow_item_gre *gre_spec = item->spec; const struct rte_flow_item_gre *gre_mask = item->mask; - struct ulp_rte_hdr_bitmap *hdr_bitmap = ¶ms->hdr_bitmap; uint32_t idx = 0; uint32_t size; @@ -1907,6 +1947,9 @@ ulp_rte_gre_hdr_handler(const struct rte_flow_item *item, if (gre_spec && !gre_mask) gre_mask = &rte_flow_item_gre_mask; + params->gre_cks_rsvd0_ver = (gre_spec && gre_mask) ? + (gre_spec->c_rsvd0_ver & gre_mask->c_rsvd0_ver) : 0; + size = sizeof(((struct rte_flow_item_gre *)NULL)->c_rsvd0_ver); ulp_rte_prsr_fld_mask(params, &idx, size, ulp_deference_struct(gre_spec, c_rsvd0_ver), diff --git a/drivers/net/bnxt/tf_ulp/ulp_rte_parser.h b/drivers/net/bnxt/tf_ulp/ulp_rte_parser.h index 5f451ba404..92c34394ae 100644 --- a/drivers/net/bnxt/tf_ulp/ulp_rte_parser.h +++ b/drivers/net/bnxt/tf_ulp/ulp_rte_parser.h @@ -140,6 +140,11 @@ int32_t ulp_rte_geneve_hdr_handler(const struct rte_flow_item *item, struct ulp_rte_parser_params *params); +/* Function to handle the parsing of RTE Flow item GRE KEY Header. */ +int32_t +ulp_rte_gre_key_hdr_handler(const struct rte_flow_item *item, + struct ulp_rte_parser_params *params); + /* Function to handle the parsing of RTE Flow item GRE Header. */ int32_t ulp_rte_gre_hdr_handler(const struct rte_flow_item *item, diff --git a/drivers/net/bnxt/tf_ulp/ulp_template_db_enum.h b/drivers/net/bnxt/tf_ulp/ulp_template_db_enum.h index c30a43568b..3ce43f4c92 100644 --- a/drivers/net/bnxt/tf_ulp/ulp_template_db_enum.h +++ b/drivers/net/bnxt/tf_ulp/ulp_template_db_enum.h @@ -119,7 +119,8 @@ enum bnxt_ulp_hdr_bit { BNXT_ULP_HDR_BIT_NON_GENERIC = 0x0000000400000000, BNXT_ULP_HDR_BIT_GENERIC = 0x0000000800000000, BNXT_ULP_HDR_BIT_T_MPLS = 0x0000001000000000, - BNXT_ULP_HDR_BIT_LAST = 0x0000002000000000 + BNXT_ULP_HDR_BIT_T_GRE_OPT = 0x0000002000000000, + BNXT_ULP_HDR_BIT_LAST = 0x0000004000000000 }; enum bnxt_ulp_accept_opc { diff --git a/drivers/net/bnxt/tf_ulp/ulp_template_struct.h b/drivers/net/bnxt/tf_ulp/ulp_template_struct.h index 5b3e82f336..f38ebcea9a 100644 --- a/drivers/net/bnxt/tf_ulp/ulp_template_struct.h +++ b/drivers/net/bnxt/tf_ulp/ulp_template_struct.h @@ -32,6 +32,7 @@ #define BNXT_ULP_PROTO_HDR_VXLAN_GPE_NUM 5 #define BNXT_ULP_PROTO_HDR_GENEVE_NUM 4 #define BNXT_ULP_PROTO_HDR_GRE_NUM 2 +#define BNXT_ULP_PROTO_HDR_GRE_KEY_NUM 1 #define BNXT_ULP_PROTO_HDR_ICMP_NUM 5 #define BNXT_ULP_PROTO_HDR_ECPRI_NUM 2 #define BNXT_ULP_PROTO_HDR_IPV6_EXT_NUM 1 @@ -100,6 +101,7 @@ struct ulp_rte_parser_params { uint32_t act_pattern_id; uint8_t app_id; uint8_t tun_idx; + uint16_t gre_cks_rsvd0_ver; /* GRE C, K, S bits and version */ uint16_t class_info_idx; uint64_t wc_field_bitmap; uint64_t cf_bitmap; -- 2.39.5 (Apple Git-154)