From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 7A2A54575B; Wed, 7 Aug 2024 11:48:37 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id C6BA342D76; Wed, 7 Aug 2024 11:47:32 +0200 (CEST) Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) by mails.dpdk.org (Postfix) with ESMTP id 39E4E427C2 for ; Wed, 7 Aug 2024 11:47:25 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1723024046; x=1754560046; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=PuI8ws8QZpu20EpZEZTMXgmWpEspJN7UcXGSE6TqDfI=; b=KX7BPtC02Lj78D5jW1JRbOZsE+2e4pdPg09gp9D8l6IAmJ4rlTeIRbt4 cbZT6rKi8GjczHLhPDqgLD0nyevzA3SNf/cVGLTXa9ygegstYAsoDN290 JuyiohdmAHZQWIDe3K279lj4hLtzkEhTGCjExdGqg+Jar1bUwVAP0b7Ie Mfh3oo5MectPaL9EonZkBCP/kReO30sjCxxzJmZLq5nPq4gSFh9BsgBTI a6R+jyYJr0Ire2C0sttY+ZYQRiNTbVXaKYH8zXfRDRZROSRl+lE4iAVVv JlXPxushmM+ERrD3BEsBYjtkFiJ1Zey6FGmOTf8olk5eqKxOyz145UDxd A==; X-CSE-ConnectionGUID: Kgk9vrTSTvW0VmuDPkFKgA== X-CSE-MsgGUID: /b6bqMdHSdO8RYY2qCrFkw== X-IronPort-AV: E=McAfee;i="6700,10204,11156"; a="21257952" X-IronPort-AV: E=Sophos;i="6.09,269,1716274800"; d="scan'208";a="21257952" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Aug 2024 02:47:25 -0700 X-CSE-ConnectionGUID: FPZYCUDnRNy6U469I18uug== X-CSE-MsgGUID: kNt94xKlSraCXxy56yBM1A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,269,1716274800"; d="scan'208";a="87467403" Received: from silpixa00400562.ir.intel.com (HELO silpixa00401385.ir.intel.com) ([10.237.214.39]) by orviesa002.jf.intel.com with ESMTP; 07 Aug 2024 02:47:24 -0700 From: Bruce Richardson To: dev@dpdk.org Cc: Bruce Richardson Subject: [PATCH v2 13/15] net/ice: limit the number of queues to sched capabilities Date: Wed, 7 Aug 2024 10:47:04 +0100 Message-ID: <20240807094706.459822-14-bruce.richardson@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240807094706.459822-1-bruce.richardson@intel.com> References: <20240807093407.452784-1-bruce.richardson@intel.com> <20240807094706.459822-1-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 Rather than assuming that each VSI can hold up to 256 queue pairs, or the reported device limit, query the available nodes in the scheduler tree to check that we are not overflowing the limit for number of child scheduling nodes at each level. Do this by multiplying max_children for each level beyond the VSI and using that as an additional cap on the number of queues. Signed-off-by: Bruce Richardson --- drivers/net/ice/ice_ethdev.c | 25 ++++++++++++++++++++----- 1 file changed, 20 insertions(+), 5 deletions(-) diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index 0d2445a317..ab3f88fd7d 100644 --- a/drivers/net/ice/ice_ethdev.c +++ b/drivers/net/ice/ice_ethdev.c @@ -913,7 +913,7 @@ ice_vsi_config_default_rss(struct ice_aqc_vsi_props *info) } static int -ice_vsi_config_tc_queue_mapping(struct ice_vsi *vsi, +ice_vsi_config_tc_queue_mapping(struct ice_hw *hw, struct ice_vsi *vsi, struct ice_aqc_vsi_props *info, uint8_t enabled_tcmap) { @@ -929,13 +929,28 @@ ice_vsi_config_tc_queue_mapping(struct ice_vsi *vsi, } /* vector 0 is reserved and 1 vector for ctrl vsi */ - if (vsi->adapter->hw.func_caps.common_cap.num_msix_vectors < 2) + if (vsi->adapter->hw.func_caps.common_cap.num_msix_vectors < 2) { vsi->nb_qps = 0; - else + } else { vsi->nb_qps = RTE_MIN ((uint16_t)vsi->adapter->hw.func_caps.common_cap.num_msix_vectors - 2, RTE_MIN(vsi->nb_qps, ICE_MAX_Q_PER_TC)); + /* cap max QPs to what the HW reports as num-children for each layer. + * Multiply num_children for each layer from the entry_point layer to + * the qgroup, or second-last layer. + * Avoid any potential overflow by using uint32_t type and breaking loop + * once we have a number greater than the already configured max. + */ + uint32_t max_sched_vsi_nodes = 1; + for (uint8_t i = hw->sw_entry_point_layer; i < hw->num_tx_sched_layers - 1; i++) { + max_sched_vsi_nodes *= hw->max_children[i]; + if (max_sched_vsi_nodes >= vsi->nb_qps) + break; + } + vsi->nb_qps = RTE_MIN(vsi->nb_qps, max_sched_vsi_nodes); + } + /* nb_qps(hex) -> fls */ /* 0000 -> 0 */ /* 0001 -> 0 */ @@ -1707,7 +1722,7 @@ ice_setup_vsi(struct ice_pf *pf, enum ice_vsi_type type) rte_cpu_to_le_16(hw->func_caps.fd_fltr_best_effort); /* Enable VLAN/UP trip */ - ret = ice_vsi_config_tc_queue_mapping(vsi, + ret = ice_vsi_config_tc_queue_mapping(hw, vsi, &vsi_ctx.info, ICE_DEFAULT_TCMAP); if (ret) { @@ -1731,7 +1746,7 @@ ice_setup_vsi(struct ice_pf *pf, enum ice_vsi_type type) vsi_ctx.info.fd_options = rte_cpu_to_le_16(cfg); vsi_ctx.info.sw_id = hw->port_info->sw_id; vsi_ctx.info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA; - ret = ice_vsi_config_tc_queue_mapping(vsi, + ret = ice_vsi_config_tc_queue_mapping(hw, vsi, &vsi_ctx.info, ICE_DEFAULT_TCMAP); if (ret) { -- 2.43.0