From patchwork Fri May 20 18:11:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 574663 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3BCB6C433FE for ; Fri, 20 May 2022 18:13:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352472AbiETSNK (ORCPT ); Fri, 20 May 2022 14:13:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36546 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1349265AbiETSNI (ORCPT ); Fri, 20 May 2022 14:13:08 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0BE8F18DADE; Fri, 20 May 2022 11:13:07 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 9D9EDB82D4B; Fri, 20 May 2022 18:13:05 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F6ADC36AE3; Fri, 20 May 2022 18:13:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1653070384; bh=aES4gNLnyZ4BVRsMp9P1u7euxX04IycxzdyraeSQOSM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ghcXuKdWzdMMwZ0RtPCabBu2mE5h0JSpgrLRDqSmTjC3QxNeMypBeXBvDE2Kt7VpO dDFKxe7m2tNuBvH+V9T9mftL/fi2LO4A6Jzn0LkqVXrJFAeqsM50iJJyu0sk0zfxCU s51fkZh6cU6vlIKAd8YPZa8UYk9R8vo432iLJx6eRECAYEq3a85N6ds1fsqe+ne8zN d8ym4YkEuYtttZAxHX67Z2I9UkH6GjB4Q6d2QknuFLg1tQVQYey+uvYuVbrn9uZH1Z b0kALBPyE58XVnoKL8DWnig5qrdZHgHEOJdjpTjDkZtle2nf7WainwoyLh3t3pypfh InnaffFJk6f8g== From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com, Mark-MC.Lee@mediatek.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, Sam.Shih@mediatek.com, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, robh@kernel.org, lorenzo.bianconi@redhat.com Subject: [PATCH v3 net-next 14/16] net: ethernet: mtk_eth_soc: convert ring dma pointer to void Date: Fri, 20 May 2022 20:11:37 +0200 Message-Id: <612d9c41954ab4ad719e4cffb01b2d411a63c592.1653069056.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Simplify the code converting {tx,rx} ring dma pointer to void Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 32 +++++++++------------ drivers/net/ethernet/mediatek/mtk_eth_soc.h | 4 +-- 2 files changed, 16 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 9169f6360ab5..64c201e763c3 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -917,18 +917,15 @@ static int mtk_init_fq_dma(struct mtk_eth *eth) return 0; } -static inline void *mtk_qdma_phys_to_virt(struct mtk_tx_ring *ring, u32 desc) +static void *mtk_qdma_phys_to_virt(struct mtk_tx_ring *ring, u32 desc) { - void *ret = ring->dma; - - return ret + (desc - ring->phys); + return ring->dma + (desc - ring->phys); } static struct mtk_tx_buf *mtk_desc_to_tx_buf(struct mtk_tx_ring *ring, - struct mtk_tx_dma *txd, - u32 txd_size) + void *txd, u32 txd_size) { - int idx = ((void *)txd - (void *)ring->dma) / txd_size; + int idx = (txd - ring->dma) / txd_size; return &ring->buf[idx]; } @@ -936,13 +933,12 @@ static struct mtk_tx_buf *mtk_desc_to_tx_buf(struct mtk_tx_ring *ring, static struct mtk_tx_dma *qdma_to_pdma(struct mtk_tx_ring *ring, struct mtk_tx_dma *dma) { - return ring->dma_pdma - ring->dma + dma; + return ring->dma_pdma - (struct mtk_tx_dma *)ring->dma + dma; } -static int txd_to_idx(struct mtk_tx_ring *ring, struct mtk_tx_dma *dma, - u32 txd_size) +static int txd_to_idx(struct mtk_tx_ring *ring, void *dma, u32 txd_size) { - return ((void *)dma - (void *)ring->dma) / txd_size; + return (dma - ring->dma) / txd_size; } static void mtk_tx_unmap(struct mtk_eth *eth, struct mtk_tx_buf *tx_buf, @@ -1359,7 +1355,7 @@ static struct mtk_rx_ring *mtk_get_rx_ring(struct mtk_eth *eth) ring = ð->rx_ring[i]; idx = NEXT_DESP_IDX(ring->calc_idx, ring->dma_size); - rxd = (void *)ring->dma + idx * eth->soc->txrx.rxd_size; + rxd = ring->dma + idx * eth->soc->txrx.rxd_size; if (rxd->rxd2 & RX_DMA_DONE) { ring->calc_idx_update = true; return ring; @@ -1411,7 +1407,7 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, goto rx_done; idx = NEXT_DESP_IDX(ring->calc_idx, ring->dma_size); - rxd = (void *)ring->dma + idx * eth->soc->txrx.rxd_size; + rxd = ring->dma + idx * eth->soc->txrx.rxd_size; data = ring->data[idx]; if (!mtk_rx_get_desc(eth, &trxd, rxd)) @@ -1615,7 +1611,7 @@ static int mtk_poll_tx_pdma(struct mtk_eth *eth, int budget, mtk_tx_unmap(eth, tx_buf, true); - desc = (void *)ring->dma + cpu * eth->soc->txrx.txd_size; + desc = ring->dma + cpu * eth->soc->txrx.txd_size; ring->last_free = desc; atomic_inc(&ring->free_count); @@ -1760,7 +1756,7 @@ static int mtk_tx_alloc(struct mtk_eth *eth) int next = (i + 1) % MTK_DMA_SIZE; u32 next_ptr = ring->phys + next * sz; - txd = (void *)ring->dma + i * sz; + txd = ring->dma + i * sz; txd->txd2 = next_ptr; txd->txd3 = TX_DMA_LS0 | TX_DMA_OWNER_CPU; txd->txd4 = 0; @@ -1790,7 +1786,7 @@ static int mtk_tx_alloc(struct mtk_eth *eth) ring->dma_size = MTK_DMA_SIZE; atomic_set(&ring->free_count, MTK_DMA_SIZE - 2); - ring->next_free = &ring->dma[0]; + ring->next_free = ring->dma; ring->last_free = (void *)txd; ring->last_free_ptr = (u32)(ring->phys + ((MTK_DMA_SIZE - 1) * sz)); ring->thresh = MAX_SKB_FRAGS; @@ -1902,7 +1898,7 @@ static int mtk_rx_alloc(struct mtk_eth *eth, int ring_no, int rx_flag) if (unlikely(dma_mapping_error(eth->dma_dev, dma_addr))) return -ENOMEM; - rxd = (void *)ring->dma + i * eth->soc->txrx.rxd_size; + rxd = ring->dma + i * eth->soc->txrx.rxd_size; rxd->rxd1 = (unsigned int)dma_addr; if (MTK_HAS_CAPS(eth->soc->caps, MTK_SOC_MT7628)) @@ -1964,7 +1960,7 @@ static void mtk_rx_clean(struct mtk_eth *eth, struct mtk_rx_ring *ring) if (!ring->data[i]) continue; - rxd = (void *)ring->dma + i * eth->soc->txrx.rxd_size; + rxd = ring->dma + i * eth->soc->txrx.rxd_size; if (!rxd->rxd1) continue; diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index 1db5424edee5..f53024682698 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -692,7 +692,7 @@ struct mtk_tx_buf { * are present */ struct mtk_tx_ring { - struct mtk_tx_dma *dma; + void *dma; struct mtk_tx_buf *buf; dma_addr_t phys; struct mtk_tx_dma *next_free; @@ -722,7 +722,7 @@ enum mtk_rx_flags { * @calc_idx: The current head of ring */ struct mtk_rx_ring { - struct mtk_rx_dma *dma; + void *dma; u8 **data; dma_addr_t phys; u16 frag_size;