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 6B380A054F; Tue, 16 Mar 2021 23:21:57 +0100 (CET) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 8EB3A242B01; Tue, 16 Mar 2021 23:20:19 +0100 (CET) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by mails.dpdk.org (Postfix) with ESMTP id A2AB8242AA7 for ; Tue, 16 Mar 2021 23:20:03 +0100 (CET) IronPort-SDR: LHmdLM965Ox+sDfFnZoavAHLnzH714bs4FedH8IXKDxAPotbkFFoGovfPzlBcpnNWrUSd9SiKQ /wKefns0rfRA== X-IronPort-AV: E=McAfee;i="6000,8403,9925"; a="253359268" X-IronPort-AV: E=Sophos;i="5.81,254,1610438400"; d="scan'208";a="253359268" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Mar 2021 15:20:00 -0700 IronPort-SDR: 6oKTnjgQC2NVNYHPxHyEWALl2zM1us9jTv6u+wj4dmz6NjUhvT1Pb2GggODKvszfL96LJPUyvn 5EVBH7JIG8IQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,254,1610438400"; d="scan'208";a="605440288" Received: from txasoft-yocto.an.intel.com ([10.123.72.192]) by fmsmga005.fm.intel.com with ESMTP; 16 Mar 2021 15:19:59 -0700 From: Timothy McDaniel To: dev@dpdk.org Cc: jerinj@marvell.com, harry.van.haaren@intel.com, mdr@ashroe.eu, nhorman@tuxdriver.com, nikhil.rao@intel.com, erik.g.carrillo@intel.com, abhinandan.gujjar@intel.com, pbhagavatula@marvell.com, hemant.agrawal@nxp.com, mattias.ronnblom@ericsson.com, peter.mccarthy@intel.com Date: Tue, 16 Mar 2021 17:18:49 -0500 Message-Id: <20210316221857.2254-18-timothy.mcdaniel@intel.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210316221857.2254-1-timothy.mcdaniel@intel.com> References: <20210316221857.2254-1-timothy.mcdaniel@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [dpdk-dev] [PATCH 17/25] event/dlb2: add DLB v2.5 support to sequence number management 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 Sender: "dev" Update sequence number management functions for DLB v2.5, accounting for new combined register map and hardware access macros. Signed-off-by: Timothy McDaniel --- drivers/event/dlb2/pf/base/dlb2_resource.c | 1 + drivers/event/dlb2/pf/base/dlb2_resource.h | 4 +- .../event/dlb2/pf/base/dlb2_resource_new.c | 105 ++++++++++++++++++ 3 files changed, 108 insertions(+), 2 deletions(-) diff --git a/drivers/event/dlb2/pf/base/dlb2_resource.c b/drivers/event/dlb2/pf/base/dlb2_resource.c index 1759cee6b..bd1404f33 100644 --- a/drivers/event/dlb2/pf/base/dlb2_resource.c +++ b/drivers/event/dlb2/pf/base/dlb2_resource.c @@ -242,3 +242,4 @@ int dlb2_hw_get_ldb_queue_depth(struct dlb2_hw *hw, return 0; } + diff --git a/drivers/event/dlb2/pf/base/dlb2_resource.h b/drivers/event/dlb2/pf/base/dlb2_resource.h index 2e13193bb..00a0b6b57 100644 --- a/drivers/event/dlb2/pf/base/dlb2_resource.h +++ b/drivers/event/dlb2/pf/base/dlb2_resource.h @@ -792,8 +792,8 @@ int dlb2_get_group_sequence_number_occupancy(struct dlb2_hw *hw, * ordered queue is configured. */ int dlb2_set_group_sequence_numbers(struct dlb2_hw *hw, - unsigned int group_id, - unsigned long val); + u32 group_id, + u32 val); /** * dlb2_reset_domain() - reset a scheduling domain diff --git a/drivers/event/dlb2/pf/base/dlb2_resource_new.c b/drivers/event/dlb2/pf/base/dlb2_resource_new.c index f147937c0..9e4e49583 100644 --- a/drivers/event/dlb2/pf/base/dlb2_resource_new.c +++ b/drivers/event/dlb2/pf/base/dlb2_resource_new.c @@ -6129,3 +6129,108 @@ void dlb2_hw_enable_sparse_ldb_cq_mode(struct dlb2_hw *hw) DLB2_CSR_WR(hw, DLB2_CHP_CFG_CHP_CSR_CTRL, ctrl); } +/** + * dlb2_get_group_sequence_numbers() - return a group's number of SNs per queue + * @hw: dlb2_hw handle for a particular device. + * @group_id: sequence number group ID. + * + * This function returns the configured number of sequence numbers per queue + * for the specified group. + * + * Return: + * Returns -EINVAL if group_id is invalid, else the group's SNs per queue. + */ +int dlb2_get_group_sequence_numbers(struct dlb2_hw *hw, u32 group_id) +{ + if (group_id >= DLB2_MAX_NUM_SEQUENCE_NUMBER_GROUPS) + return -EINVAL; + + return hw->rsrcs.sn_groups[group_id].sequence_numbers_per_queue; +} + +/** + * dlb2_get_group_sequence_number_occupancy() - return a group's in-use slots + * @hw: dlb2_hw handle for a particular device. + * @group_id: sequence number group ID. + * + * This function returns the group's number of in-use slots (i.e. load-balanced + * queues using the specified group). + * + * Return: + * Returns -EINVAL if group_id is invalid, else the group's SNs per queue. + */ +int dlb2_get_group_sequence_number_occupancy(struct dlb2_hw *hw, u32 group_id) +{ + if (group_id >= DLB2_MAX_NUM_SEQUENCE_NUMBER_GROUPS) + return -EINVAL; + + return dlb2_sn_group_used_slots(&hw->rsrcs.sn_groups[group_id]); +} + +static void dlb2_log_set_group_sequence_numbers(struct dlb2_hw *hw, + u32 group_id, + u32 val) +{ + DLB2_HW_DBG(hw, "DLB2 set group sequence numbers:\n"); + DLB2_HW_DBG(hw, "\tGroup ID: %u\n", group_id); + DLB2_HW_DBG(hw, "\tValue: %u\n", val); +} + +/** + * dlb2_set_group_sequence_numbers() - assign a group's number of SNs per queue + * @hw: dlb2_hw handle for a particular device. + * @group_id: sequence number group ID. + * @val: requested amount of sequence numbers per queue. + * + * This function configures the group's number of sequence numbers per queue. + * val can be a power-of-two between 32 and 1024, inclusive. This setting can + * be configured until the first ordered load-balanced queue is configured, at + * which point the configuration is locked. + * + * Return: + * Returns 0 upon success; -EINVAL if group_id or val is invalid, -EPERM if an + * ordered queue is configured. + */ +int dlb2_set_group_sequence_numbers(struct dlb2_hw *hw, + u32 group_id, + u32 val) +{ + const u32 valid_allocations[] = {64, 128, 256, 512, 1024}; + struct dlb2_sn_group *group; + u32 sn_mode = 0; + int mode; + + if (group_id >= DLB2_MAX_NUM_SEQUENCE_NUMBER_GROUPS) + return -EINVAL; + + group = &hw->rsrcs.sn_groups[group_id]; + + /* + * Once the first load-balanced queue using an SN group is configured, + * the group cannot be changed. + */ + if (group->slot_use_bitmap != 0) + return -EPERM; + + for (mode = 0; mode < DLB2_MAX_NUM_SEQUENCE_NUMBER_MODES; mode++) + if (val == valid_allocations[mode]) + break; + + if (mode == DLB2_MAX_NUM_SEQUENCE_NUMBER_MODES) + return -EINVAL; + + group->mode = mode; + group->sequence_numbers_per_queue = val; + + DLB2_BITS_SET(sn_mode, hw->rsrcs.sn_groups[0].mode, + DLB2_RO_GRP_SN_MODE_SN_MODE_0); + DLB2_BITS_SET(sn_mode, hw->rsrcs.sn_groups[1].mode, + DLB2_RO_GRP_SN_MODE_SN_MODE_1); + + DLB2_CSR_WR(hw, DLB2_RO_GRP_SN_MODE(hw->ver), sn_mode); + + dlb2_log_set_group_sequence_numbers(hw, group_id, val); + + return 0; +} + -- 2.23.0