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 6AE5846CDD; Tue, 12 Aug 2025 19:33:06 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 37E8940648; Tue, 12 Aug 2025 19:33:01 +0200 (CEST) Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) by mails.dpdk.org (Postfix) with ESMTP id 93AE2400EF for ; Tue, 12 Aug 2025 19:32:58 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1755019979; x=1786555979; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=isipMp/xdVS/H5gbDBIFAY/+7Pm8kw7n2a82g41p6H4=; b=i42JgrgEOj9ZOfiXWKLLKymHeuACmSvjgbGiLsdevoAEdolpDcctQMLR EokZBUtHHW4FvZlhycagElSj4SD20SUBgyx2va6vYZedkgxK+SuU9cZ53 qmHLcbaj2ZHL+LmFtxQjHaCHZzxXaH/X7rWd0B8AWUhwy7H5iIvO4Ok2v DKZ12hxJXWFkl7JSddmC3XCq5Aam3YW6rAgsO9CNr3vgbeFya2GGOqSQm Yg9SDMbaWhX95bE7/mCyUrFvDvlaw/Pehk48e5wRfp8EUyX1azYKnDoEx FEZ7x5VOLvv3d7IKvUk33zLB7m/+rBichqgG8XJB3WNIjGeHckPvZmnMn g==; X-CSE-ConnectionGUID: pqr/n26iTweTRxQrStqFfA== X-CSE-MsgGUID: +/eIdhYwQ9+gVAa0cVwrJw== X-IronPort-AV: E=McAfee;i="6800,10657,11520"; a="74751867" X-IronPort-AV: E=Sophos;i="6.17,284,1747724400"; d="scan'208";a="74751867" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Aug 2025 10:32:58 -0700 X-CSE-ConnectionGUID: X/fP4IjuQXydEVbaZro0BA== X-CSE-MsgGUID: HJpXP1SJR8WXGNhOxluckA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.17,284,1747724400"; d="scan'208";a="170472894" Received: from unknown (HELO silpixa00401176.ger.corp.intel.com) ([10.237.222.172]) by fmviesa005.fm.intel.com with ESMTP; 12 Aug 2025 10:32:56 -0700 From: Vladimir Medvedkin To: dev@dpdk.org Cc: bruce.richardson@intel.com, anatoly.burakov@intel.com Subject: [PATCH v3 1/6] net/ice/base: add utility functions Date: Tue, 12 Aug 2025 17:32:47 +0000 Message-ID: <20250812173252.507954-2-vladimir.medvedkin@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250812173252.507954-1-vladimir.medvedkin@intel.com> References: <20250811134301.459523-1-vladimir.medvedkin@intel.com> <20250812173252.507954-1-vladimir.medvedkin@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 Add the following function related to DCB: * Get number of Congestion Domains per port * Resolve Traffic Class(TC) by 802.1p VLAN User Priority(UP) * Get absolute index of the Congestion Domain by the TC Signed-off-by: Vladimir Medvedkin --- drivers/net/intel/ice/base/ice_common.c | 31 +++++++++++++++++++++++++ drivers/net/intel/ice/base/ice_common.h | 8 +++++++ 2 files changed, 39 insertions(+) diff --git a/drivers/net/intel/ice/base/ice_common.c b/drivers/net/intel/ice/base/ice_common.c index dfc2fd69e7..68c873f71c 100644 --- a/drivers/net/intel/ice/base/ice_common.c +++ b/drivers/net/intel/ice/base/ice_common.c @@ -6579,3 +6579,34 @@ bool ice_is_fw_auto_drop_supported(struct ice_hw *hw) return true; return false; } + +/* get the number of congestion domains (cgds) for a port */ +enum ice_cgd_per_port +ice_get_port_max_cgd(struct ice_hw *hw) +{ +#define ICE_8_PORTS_LINK_TOPO 0x2 + u32 link_topo = LE32_TO_CPU(rd32(hw, GLGEN_MAC_LINK_TOPO)) & + GLGEN_MAC_LINK_TOPO_LINK_TOPO_M; + + return (link_topo == ICE_8_PORTS_LINK_TOPO) ? ICE_4_CGD_PER_PORT : ICE_8_CGD_PER_PORT; +} + +/* get the Traffic Class(TC) index associated with the User Priority */ +u8 +ice_get_tc_by_priority(struct ice_hw *hw, u8 prio) +{ + struct ice_port_info *port_info = hw->port_info; + struct ice_qos_cfg *qos_cfg = &port_info->qos_cfg; + struct ice_dcbx_cfg *local_dcb_conf = &qos_cfg->local_dcbx_cfg; + + prio &= (ICE_MAX_TRAFFIC_CLASS - 1); + + return local_dcb_conf->etscfg.prio_table[prio]; +} + +/* get the absolute index of the congestion domain by its TC */ +int +ice_get_cgd_idx(struct ice_hw *hw, u8 tc) +{ + return hw->port_info->lport * ice_get_port_max_cgd(hw) + tc; +} diff --git a/drivers/net/intel/ice/base/ice_common.h b/drivers/net/intel/ice/base/ice_common.h index f7e7ff5aaf..77ceccc6bd 100644 --- a/drivers/net/intel/ice/base/ice_common.h +++ b/drivers/net/intel/ice/base/ice_common.h @@ -25,6 +25,11 @@ enum ice_fw_modes { ICE_FW_MODE_ROLLBACK }; +enum ice_cgd_per_port { + ICE_4_CGD_PER_PORT = 4, + ICE_8_CGD_PER_PORT = 8 +}; + int ice_init_fltr_mgmt_struct(struct ice_hw *hw); void ice_cleanup_fltr_mgmt_struct(struct ice_hw *hw); void ice_set_umac_shared(struct ice_hw *hw); @@ -335,4 +340,7 @@ ice_aq_write_i2c(struct ice_hw *hw, struct ice_aqc_link_topo_addr topo_addr, bool ice_fw_supports_report_dflt_cfg(struct ice_hw *hw); /* AQ API version for FW auto drop reports */ bool ice_is_fw_auto_drop_supported(struct ice_hw *hw); +enum ice_cgd_per_port ice_get_port_max_cgd(struct ice_hw *hw); +u8 ice_get_tc_by_priority(struct ice_hw *hw, u8 prio); +int ice_get_cgd_idx(struct ice_hw *hw, u8 tc); #endif /* _ICE_COMMON_H_ */ -- 2.43.0