From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7EF86E7E0BC for ; Mon, 9 Feb 2026 16:46:48 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 2266140A75; Mon, 9 Feb 2026 17:45:58 +0100 (CET) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.17]) by mails.dpdk.org (Postfix) with ESMTP id 266D940698 for ; Mon, 9 Feb 2026 17:45:54 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1770655554; x=1802191554; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=d4EkvD/Ytke4iab3shXpJ/FTOsCuHZQ6kHlRV1YMeMI=; b=nzCvV66Ftw1pUBHrtS3dPQCo9two//nl+1Z5vBrbOhvpJswdVu2dZbu7 p8xg2l/AYHct0uWo9zBKDAfhMmv/KnpJUmJm3t6BWuD/UG/0xLo5wK4XI /AaD9WuzBJO+/HrLIYF53M+0LP17EuFVQUY6XIA6o/oSnWLXQAofJdxN/ mUM4r5kRLo/45tw46Wz34Gn0Wgb/GGd1dzHfjcM4VeCInlJxOhyd8zBom U6bf6hyiZFiau31E6Z+TSoaZ8azVEUSZ5T7elVGoQDdkY712K++UfHQ3o dUl9nseu/31HKIdFgtiXvjU1nX/8PJLotLNGcQ2dm6Thy1DzWAh4jgzAA w==; X-CSE-ConnectionGUID: pnuziwbSRCefrd/7+vfM3w== X-CSE-MsgGUID: xiHzN0kNQRawb5n6vB4inA== X-IronPort-AV: E=McAfee;i="6800,10657,11696"; a="71663417" X-IronPort-AV: E=Sophos;i="6.21,282,1763452800"; d="scan'208";a="71663417" Received: from fmviesa006.fm.intel.com ([10.60.135.146]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Feb 2026 08:45:54 -0800 X-CSE-ConnectionGUID: YHN7rOcbS4eJsYUK8i52Qg== X-CSE-MsgGUID: MbFekV3BRoKIzjuI5cxFQQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,282,1763452800"; d="scan'208";a="210789098" Received: from silpixa00401385.ir.intel.com ([10.20.224.226]) by fmviesa006.fm.intel.com with ESMTP; 09 Feb 2026 08:45:53 -0800 From: Bruce Richardson To: dev@dpdk.org Cc: Bruce Richardson , Ciara Loftus , Jingjing Wu , Praveen Shetty Subject: [PATCH v4 08/35] net/idpf: refactor context descriptor handling Date: Mon, 9 Feb 2026 16:45:06 +0000 Message-ID: <20260209164538.1428499-9-bruce.richardson@intel.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260209164538.1428499-1-bruce.richardson@intel.com> References: <20251219172548.2660777-1-bruce.richardson@intel.com> <20260209164538.1428499-1-bruce.richardson@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 Move all context descriptor handling to a single function, as with the ice and i40e drivers. Signed-off-by: Bruce Richardson Acked-by: Ciara Loftus --- drivers/net/intel/idpf/idpf_common_rxtx.c | 61 +++++++++++------------ 1 file changed, 28 insertions(+), 33 deletions(-) diff --git a/drivers/net/intel/idpf/idpf_common_rxtx.c b/drivers/net/intel/idpf/idpf_common_rxtx.c index 11d6848430..9219ad9047 100644 --- a/drivers/net/intel/idpf/idpf_common_rxtx.c +++ b/drivers/net/intel/idpf/idpf_common_rxtx.c @@ -845,37 +845,36 @@ idpf_calc_context_desc(uint64_t flags) return 0; } -/* set TSO context descriptor +/* set TSO context descriptor, returns 0 if no context needed, 1 if context set */ -static inline void -idpf_set_splitq_tso_ctx(struct rte_mbuf *mbuf, +static inline uint16_t +idpf_set_tso_ctx(uint64_t ol_flags, struct rte_mbuf *mbuf, union ci_tx_offload tx_offload, - volatile union idpf_flex_tx_ctx_desc *ctx_desc) + uint64_t *qw0, uint64_t *qw1) { - uint16_t cmd_dtype; + uint16_t cmd_dtype = IDPF_TX_DESC_DTYPE_FLEX_TSO_CTX | IDPF_TX_FLEX_CTX_DESC_CMD_TSO; + uint16_t tso_segsz = mbuf->tso_segsz; uint32_t tso_len; uint8_t hdr_len; + if (idpf_calc_context_desc(ol_flags) == 0) + return 0; + + /* TSO context descriptor setup */ if (tx_offload.l4_len == 0) { TX_LOG(DEBUG, "L4 length set to 0"); - return; + return 0; } - hdr_len = tx_offload.l2_len + - tx_offload.l3_len + - tx_offload.l4_len; - cmd_dtype = IDPF_TX_DESC_DTYPE_FLEX_TSO_CTX | - IDPF_TX_FLEX_CTX_DESC_CMD_TSO; + hdr_len = tx_offload.l2_len + tx_offload.l3_len + tx_offload.l4_len; tso_len = mbuf->pkt_len - hdr_len; - ctx_desc->tso.qw1.cmd_dtype = rte_cpu_to_le_16(cmd_dtype); - ctx_desc->tso.qw0.hdr_len = hdr_len; - ctx_desc->tso.qw0.mss_rt = - rte_cpu_to_le_16((uint16_t)mbuf->tso_segsz & - IDPF_TXD_FLEX_CTX_MSS_RT_M); - ctx_desc->tso.qw0.flex_tlen = - rte_cpu_to_le_32(tso_len & - IDPF_TXD_FLEX_CTX_MSS_RT_M); + *qw0 = rte_cpu_to_le_32(tso_len & IDPF_TXD_FLEX_CTX_MSS_RT_M) | + ((uint64_t)rte_cpu_to_le_16(tso_segsz & IDPF_TXD_FLEX_CTX_MSS_RT_M) << 32) | + ((uint64_t)hdr_len << 48); + *qw1 = rte_cpu_to_le_16(cmd_dtype); + + return 1; } RTE_EXPORT_INTERNAL_SYMBOL(idpf_dp_splitq_xmit_pkts) @@ -933,7 +932,8 @@ idpf_dp_splitq_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, tx_offload.l4_len = tx_pkt->l4_len; tx_offload.tso_segsz = tx_pkt->tso_segsz; /* Calculate the number of context descriptors needed. */ - nb_ctx = idpf_calc_context_desc(ol_flags); + uint64_t cd_qw0, cd_qw1; + nb_ctx = idpf_set_tso_ctx(ol_flags, tx_pkt, tx_offload, &cd_qw0, &cd_qw1); /* Calculate the number of TX descriptors needed for * each packet. For TSO packets, use ci_calc_pkt_desc as @@ -950,12 +950,10 @@ idpf_dp_splitq_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, /* context descriptor */ if (nb_ctx != 0) { - volatile union idpf_flex_tx_ctx_desc *ctx_desc = - (volatile union idpf_flex_tx_ctx_desc *)&txr[tx_id]; + uint64_t *ctx_desc = RTE_CAST_PTR(uint64_t *, &txr[tx_id]); - if ((ol_flags & RTE_MBUF_F_TX_TCP_SEG) != 0) - idpf_set_splitq_tso_ctx(tx_pkt, tx_offload, - ctx_desc); + ctx_desc[0] = cd_qw0; + ctx_desc[1] = cd_qw1; tx_id++; if (tx_id == txq->nb_tx_desc) @@ -1388,7 +1386,8 @@ idpf_dp_singleq_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, tx_offload.l4_len = tx_pkt->l4_len; tx_offload.tso_segsz = tx_pkt->tso_segsz; /* Calculate the number of context descriptors needed. */ - nb_ctx = idpf_calc_context_desc(ol_flags); + uint64_t cd_qw0, cd_qw1; + nb_ctx = idpf_set_tso_ctx(ol_flags, tx_pkt, tx_offload, &cd_qw0, &cd_qw1); /* The number of descriptors that must be allocated for * a packet. For TSO packets, use ci_calc_pkt_desc as @@ -1431,9 +1430,7 @@ idpf_dp_singleq_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, if (nb_ctx != 0) { /* Setup TX context descriptor if required */ - volatile union idpf_flex_tx_ctx_desc *ctx_txd = - (volatile union idpf_flex_tx_ctx_desc *) - &txr[tx_id]; + uint64_t *ctx_txd = RTE_CAST_PTR(uint64_t *, &txr[tx_id]); txn = &sw_ring[txe->next_id]; RTE_MBUF_PREFETCH_TO_FREE(txn->mbuf); @@ -1442,10 +1439,8 @@ idpf_dp_singleq_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts, txe->mbuf = NULL; } - /* TSO enabled */ - if ((ol_flags & RTE_MBUF_F_TX_TCP_SEG) != 0) - idpf_set_splitq_tso_ctx(tx_pkt, tx_offload, - ctx_txd); + ctx_txd[0] = cd_qw0; + ctx_txd[1] = cd_qw1; txe->last_id = tx_last; tx_id = txe->next_id; -- 2.51.0