From patchwork Tue Jun 18 14:11:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcin Szycik X-Patchwork-Id: 13702442 X-Patchwork-Delegate: kuba@kernel.org Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CE9E15A853 for ; Tue, 18 Jun 2024 14:10:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718719813; cv=none; b=nBxtmJPvr/9EBTqYnCjqdQKShacwEoA8MIPw6891BCiFfFqcwlakcTmqvbyx/iN3fO4J1HFXkhVtAYClgxEA8kc44ggqIHrDU3Wo/lRFgHU1EW0a+OE7zbZDfbC9y68JCqBdB1vG4kZVVNyvV998nktBcEOPvHtgdLznfll/v/E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718719813; c=relaxed/simple; bh=HeNcr3qhM00+2Tl33Cp4VWWv/wI6Ox5D3E+1ZmflEk8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Xo7HyEJhi+ESrmPcMKWuX7oI4OOsmW9bFMhqqnP2ls6z7kEylyBaJqkF2M7ZvYX3Cc+r7WjAJ5+9GCe4ZX+f1/mfdxkW92gmZfHAkLFpqUhee+zPBjrHuzPTN3eE8vTL8x/YgQQ6MyPqs6D4FRb/C5zoMy8zeNw32IsbBfZ8ISw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=Fz/g7AgQ; arc=none smtp.client-ip=192.198.163.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="Fz/g7AgQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1718719812; x=1750255812; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=HeNcr3qhM00+2Tl33Cp4VWWv/wI6Ox5D3E+1ZmflEk8=; b=Fz/g7AgQhZ72HMD2drd7EsjbeJgOxHWdUpkVQUXGPZdcVLYnOsbZHGjV K0AZ0K+zBH+yXQBNJ20Za876vfdfiX9d+hzZz5r/9to6FZlXfPZLZLL+2 SLqNuO+LC1RZdfN5zi8taj3u9ArKE7pnTV6nBw1kMGV0lnwyO9B/NgYJn rcTfgzXWI20i1Av8W3yPyucmk1PLyJbcMwUcI/iNFYzCSOR0YgNVUb7bq 8ceBNa9kVmXz8jY4jJlc91rwf0Ki+CsPdActy/Yl0izqNH7ZolOv3f/su hM/XqzR84v6fIuFBo0tJ4qvCkcWBJqc4E41/pyv0SMXPXCdNQgpIlarSF g==; X-CSE-ConnectionGUID: aHBqCj8RTb2loJqogtLNmw== X-CSE-MsgGUID: vQkaE+7iRnyiUbS6YYroug== X-IronPort-AV: E=McAfee;i="6700,10204,11107"; a="33137776" X-IronPort-AV: E=Sophos;i="6.08,247,1712646000"; d="scan'208";a="33137776" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jun 2024 07:10:10 -0700 X-CSE-ConnectionGUID: yzkcUamsRVy97/bVG0dAbw== X-CSE-MsgGUID: zkGjTdXlQL2/9Ak3fPpd4g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,247,1712646000"; d="scan'208";a="46109798" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by fmviesa004.fm.intel.com with ESMTP; 18 Jun 2024 07:10:07 -0700 Received: from mystra-4.igk.intel.com (mystra-4.igk.intel.com [10.123.220.40]) by irvmail002.ir.intel.com (Postfix) with ESMTP id AC76634304; Tue, 18 Jun 2024 15:10:04 +0100 (IST) From: Marcin Szycik To: intel-wired-lan@lists.osuosl.org Cc: netdev@vger.kernel.org, michal.swiatkowski@linux.intel.com, przemyslaw.kitszel@intel.com, Marcin Szycik Subject: [PATCH iwl-next 4/6] ice: remove unused recipe bookkeeping data Date: Tue, 18 Jun 2024 16:11:55 +0200 Message-ID: <20240618141157.1881093-5-marcin.szycik@linux.intel.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240618141157.1881093-1-marcin.szycik@linux.intel.com> References: <20240618141157.1881093-1-marcin.szycik@linux.intel.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Michal Swiatkowski Remove root_buf from recipe struct. Its only usage was in ice_find_recp(), where if recipe had an inverse action, it was skipped, but actually the driver never adds inverse actions, so effectively it was pointless. Without root_buf, the recipe data element in ice_add_sw_recipe() does not need to be persistent and can also be automatically deallocated with __free, which nicely simplifies unroll. Signed-off-by: Michal Swiatkowski Reviewed-by: Przemek Kitszel Signed-off-by: Marcin Szycik Reviewed-by: Simon Horman --- drivers/net/ethernet/intel/ice/ice_common.c | 1 - drivers/net/ethernet/intel/ice/ice_switch.c | 55 ++++++--------------- drivers/net/ethernet/intel/ice/ice_switch.h | 2 - 3 files changed, 15 insertions(+), 43 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c index 60ad7774812c..df1623ddbaf6 100644 --- a/drivers/net/ethernet/intel/ice/ice_common.c +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -993,7 +993,6 @@ static void ice_cleanup_fltr_mgmt_struct(struct ice_hw *hw) devm_kfree(ice_hw_to_dev(hw), lst_itr); } } - devm_kfree(ice_hw_to_dev(hw), recps[i].root_buf); } ice_rm_all_sw_replay_rule_info(hw); devm_kfree(ice_hw_to_dev(hw), sw->recp_list); diff --git a/drivers/net/ethernet/intel/ice/ice_switch.c b/drivers/net/ethernet/intel/ice/ice_switch.c index 2f67fbb73fd1..f8f9d192d345 100644 --- a/drivers/net/ethernet/intel/ice/ice_switch.c +++ b/drivers/net/ethernet/intel/ice/ice_switch.c @@ -2445,13 +2445,6 @@ ice_get_recp_frm_fw(struct ice_hw *hw, struct ice_sw_recipe *recps, u8 rid, lkup_exts->n_val_words = fv_word_idx; recps[rid].big_recp = (num_recps > 1); recps[rid].n_grp_count = (u8)num_recps; - recps[rid].root_buf = devm_kmemdup(ice_hw_to_dev(hw), tmp, - recps[rid].n_grp_count * sizeof(*recps[rid].root_buf), - GFP_KERNEL); - if (!recps[rid].root_buf) { - status = -ENOMEM; - goto err_unroll; - } /* Copy result indexes */ bitmap_copy(recps[rid].res_idxs, result_bm, ICE_MAX_FV_WORDS); @@ -4768,11 +4761,6 @@ ice_find_recp(struct ice_hw *hw, struct ice_prot_lkup_ext *lkup_exts, continue; } - /* Skip inverse action recipes */ - if (recp[i].root_buf && recp[i].root_buf->content.act_ctrl & - ICE_AQ_RECIPE_ACT_INV_ACT) - continue; - /* if number of words we are looking for match */ if (lkup_exts->n_val_words == recp[i].lkup_exts.n_val_words) { struct ice_fv_word *ar = recp[i].lkup_exts.fv_words; @@ -5081,9 +5069,9 @@ static int ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, unsigned long *profiles) { + struct ice_aqc_recipe_data_elem *buf __free(kfree) = NULL; DECLARE_BITMAP(result_idx_bm, ICE_MAX_FV_WORDS); struct ice_aqc_recipe_content *content; - struct ice_aqc_recipe_data_elem *buf; struct ice_recp_grp_entry *entry; u16 free_res_idx; u8 chain_idx; @@ -5112,12 +5100,9 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, if (rm->n_grp_count > ICE_MAX_CHAIN_RECIPE) return -ENOSPC; - buf = devm_kcalloc(ice_hw_to_dev(hw), rm->n_grp_count, sizeof(*buf), - GFP_KERNEL); - if (!buf) { - status = -ENOMEM; - goto err_mem; - } + buf = kcalloc(rm->n_grp_count, sizeof(*buf), GFP_KERNEL); + if (!buf) + return -ENOMEM; bitmap_zero(rm->r_bitmap, ICE_MAX_NUM_RECIPES); @@ -5130,7 +5115,7 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, status = ice_alloc_recipe(hw, &entry->rid); if (status) - goto err_unroll; + return status; content = &buf[recps].content; @@ -5160,8 +5145,7 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, */ if (chain_idx >= ICE_MAX_FV_WORDS) { ice_debug(hw, ICE_DBG_SW, "No chain index available\n"); - status = -ENOSPC; - goto err_unroll; + return -ENOSPC; } entry->chain_idx = chain_idx; @@ -5215,7 +5199,7 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, */ status = ice_alloc_recipe(hw, &rid); if (status) - goto err_unroll; + return status; content = &buf[recps].content; @@ -5228,10 +5212,9 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, last_chain_entry = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*last_chain_entry), GFP_KERNEL); - if (!last_chain_entry) { - status = -ENOMEM; - goto err_unroll; - } + if (!last_chain_entry) + return -ENOMEM; + last_chain_entry->rid = rid; memset(&content->lkup_indx, 0, sizeof(content->lkup_indx)); /* All recipes use look-up index 0 to match switch ID. */ @@ -5265,12 +5248,12 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, } status = ice_acquire_change_lock(hw, ICE_RES_WRITE); if (status) - goto err_unroll; + return status; status = ice_aq_add_recipe(hw, buf, rm->n_grp_count, NULL); ice_release_change_lock(hw); if (status) - goto err_unroll; + return status; /* Every recipe that just got created add it to the recipe * book keeping list @@ -5288,10 +5271,8 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, idx_found = true; } - if (!idx_found) { - status = -EIO; - goto err_unroll; - } + if (!idx_found) + return -EIO; recp = &sw->recp_list[entry->rid]; is_root = (rm->root_rid == entry->rid); @@ -5327,13 +5308,8 @@ ice_add_sw_recipe(struct ice_hw *hw, struct ice_sw_recipe *rm, recp->allow_pass_l2 = rm->allow_pass_l2; recp->recp_created = true; } - rm->root_buf = buf; - return status; -err_unroll: -err_mem: - devm_kfree(ice_hw_to_dev(hw), buf); - return status; + return 0; } /** @@ -5632,7 +5608,6 @@ ice_add_adv_recipe(struct ice_hw *hw, struct ice_adv_lkup_elem *lkups, devm_kfree(ice_hw_to_dev(hw), fvit); } - devm_kfree(ice_hw_to_dev(hw), rm->root_buf); kfree(rm); err_free_lkup_exts: diff --git a/drivers/net/ethernet/intel/ice/ice_switch.h b/drivers/net/ethernet/intel/ice/ice_switch.h index ad98e98c812d..0c410ce29700 100644 --- a/drivers/net/ethernet/intel/ice/ice_switch.h +++ b/drivers/net/ethernet/intel/ice/ice_switch.h @@ -274,8 +274,6 @@ struct ice_sw_recipe { struct list_head rg_list; - /* AQ buffer associated with this recipe */ - struct ice_aqc_recipe_data_elem *root_buf; /* This struct saves the fv_words for a given lookup */ struct ice_prot_lkup_ext lkup_exts; };