From patchwork Wed Feb 8 07:34:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 13132530 X-Patchwork-Delegate: kuba@kernel.org 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 A8B80C64EC7 for ; Wed, 8 Feb 2023 07:35:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230300AbjBHHfC (ORCPT ); Wed, 8 Feb 2023 02:35:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230297AbjBHHe4 (ORCPT ); Wed, 8 Feb 2023 02:34:56 -0500 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 254A031E15; Tue, 7 Feb 2023 23:34:55 -0800 (PST) X-IronPort-AV: E=Sophos;i="5.97,280,1669042800"; d="scan'208";a="152068344" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 08 Feb 2023 16:34:54 +0900 Received: from localhost.localdomain (unknown [10.166.15.32]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 59A4D41C8A7D; Wed, 8 Feb 2023 16:34:54 +0900 (JST) From: Yoshihiro Shimoda To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com Cc: netdev@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda Subject: [PATCH net-next 1/4] net: renesas: rswitch: Rename rings in struct rswitch_gwca_queue Date: Wed, 8 Feb 2023 16:34:42 +0900 Message-Id: <20230208073445.2317192-2-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230208073445.2317192-1-yoshihiro.shimoda.uh@renesas.com> References: <20230208073445.2317192-1-yoshihiro.shimoda.uh@renesas.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org To add a new ring which is really related to timestamp (ts_ring) in the future, rename the following members to improve readability: ring --> tx_ring ts_ring --> rx_ring Signed-off-by: Yoshihiro Shimoda --- drivers/net/ethernet/renesas/rswitch.c | 64 +++++++++++++------------- drivers/net/ethernet/renesas/rswitch.h | 4 +- 2 files changed, 34 insertions(+), 34 deletions(-) diff --git a/drivers/net/ethernet/renesas/rswitch.c b/drivers/net/ethernet/renesas/rswitch.c index 50b61a0a7f53..6207692f9c56 100644 --- a/drivers/net/ethernet/renesas/rswitch.c +++ b/drivers/net/ethernet/renesas/rswitch.c @@ -240,7 +240,7 @@ static int rswitch_get_num_cur_queues(struct rswitch_gwca_queue *gq) static bool rswitch_is_queue_rxed(struct rswitch_gwca_queue *gq) { - struct rswitch_ext_ts_desc *desc = &gq->ts_ring[gq->dirty]; + struct rswitch_ext_ts_desc *desc = &gq->rx_ring[gq->dirty]; if ((desc->desc.die_dt & DT_MASK) != DT_FEMPTY) return true; @@ -283,13 +283,13 @@ static void rswitch_gwca_queue_free(struct net_device *ndev, if (gq->gptp) { dma_free_coherent(ndev->dev.parent, sizeof(struct rswitch_ext_ts_desc) * - (gq->ring_size + 1), gq->ts_ring, gq->ring_dma); - gq->ts_ring = NULL; + (gq->ring_size + 1), gq->rx_ring, gq->ring_dma); + gq->rx_ring = NULL; } else { dma_free_coherent(ndev->dev.parent, sizeof(struct rswitch_ext_desc) * - (gq->ring_size + 1), gq->ring, gq->ring_dma); - gq->ring = NULL; + (gq->ring_size + 1), gq->tx_ring, gq->ring_dma); + gq->tx_ring = NULL; } if (!gq->dir_tx) { @@ -321,14 +321,14 @@ static int rswitch_gwca_queue_alloc(struct net_device *ndev, rswitch_gwca_queue_alloc_skb(gq, 0, gq->ring_size); if (gptp) - gq->ts_ring = dma_alloc_coherent(ndev->dev.parent, + gq->rx_ring = dma_alloc_coherent(ndev->dev.parent, sizeof(struct rswitch_ext_ts_desc) * (gq->ring_size + 1), &gq->ring_dma, GFP_KERNEL); else - gq->ring = dma_alloc_coherent(ndev->dev.parent, - sizeof(struct rswitch_ext_desc) * - (gq->ring_size + 1), &gq->ring_dma, GFP_KERNEL); - if (!gq->ts_ring && !gq->ring) + gq->tx_ring = dma_alloc_coherent(ndev->dev.parent, + sizeof(struct rswitch_ext_desc) * + (gq->ring_size + 1), &gq->ring_dma, GFP_KERNEL); + if (!gq->rx_ring && !gq->tx_ring) goto out; i = gq->index / 32; @@ -361,14 +361,14 @@ static int rswitch_gwca_queue_format(struct net_device *ndev, struct rswitch_private *priv, struct rswitch_gwca_queue *gq) { - int tx_ring_size = sizeof(struct rswitch_ext_desc) * gq->ring_size; + int ring_size = sizeof(struct rswitch_ext_desc) * gq->ring_size; struct rswitch_ext_desc *desc; struct rswitch_desc *linkfix; dma_addr_t dma_addr; int i; - memset(gq->ring, 0, tx_ring_size); - for (i = 0, desc = gq->ring; i < gq->ring_size; i++, desc++) { + memset(gq->tx_ring, 0, ring_size); + for (i = 0, desc = gq->tx_ring; i < gq->ring_size; i++, desc++) { if (!gq->dir_tx) { dma_addr = dma_map_single(ndev->dev.parent, gq->skbs[i]->data, PKT_BUF_SZ, @@ -397,7 +397,7 @@ static int rswitch_gwca_queue_format(struct net_device *ndev, err: if (!gq->dir_tx) { - for (i--, desc = gq->ring; i >= 0; i--, desc++) { + for (i--, desc = gq->tx_ring; i >= 0; i--, desc++) { dma_addr = rswitch_desc_get_dptr(&desc->desc); dma_unmap_single(ndev->dev.parent, dma_addr, PKT_BUF_SZ, DMA_FROM_DEVICE); @@ -407,9 +407,9 @@ static int rswitch_gwca_queue_format(struct net_device *ndev, return -ENOMEM; } -static int rswitch_gwca_queue_ts_fill(struct net_device *ndev, - struct rswitch_gwca_queue *gq, - int start_index, int num) +static int rswitch_gwca_queue_ext_ts_fill(struct net_device *ndev, + struct rswitch_gwca_queue *gq, + int start_index, int num) { struct rswitch_device *rdev = netdev_priv(ndev); struct rswitch_ext_ts_desc *desc; @@ -418,7 +418,7 @@ static int rswitch_gwca_queue_ts_fill(struct net_device *ndev, for (i = 0; i < num; i++) { index = (i + start_index) % gq->ring_size; - desc = &gq->ts_ring[index]; + desc = &gq->rx_ring[index]; if (!gq->dir_tx) { dma_addr = dma_map_single(ndev->dev.parent, gq->skbs[index]->data, PKT_BUF_SZ, @@ -442,7 +442,7 @@ static int rswitch_gwca_queue_ts_fill(struct net_device *ndev, if (!gq->dir_tx) { for (i--; i >= 0; i--) { index = (i + start_index) % gq->ring_size; - desc = &gq->ts_ring[index]; + desc = &gq->rx_ring[index]; dma_addr = rswitch_desc_get_dptr(&desc->desc); dma_unmap_single(ndev->dev.parent, dma_addr, PKT_BUF_SZ, DMA_FROM_DEVICE); @@ -452,21 +452,21 @@ static int rswitch_gwca_queue_ts_fill(struct net_device *ndev, return -ENOMEM; } -static int rswitch_gwca_queue_ts_format(struct net_device *ndev, - struct rswitch_private *priv, - struct rswitch_gwca_queue *gq) +static int rswitch_gwca_queue_ext_ts_format(struct net_device *ndev, + struct rswitch_private *priv, + struct rswitch_gwca_queue *gq) { - int tx_ts_ring_size = sizeof(struct rswitch_ext_ts_desc) * gq->ring_size; + int ring_size = sizeof(struct rswitch_ext_ts_desc) * gq->ring_size; struct rswitch_ext_ts_desc *desc; struct rswitch_desc *linkfix; int err; - memset(gq->ts_ring, 0, tx_ts_ring_size); - err = rswitch_gwca_queue_ts_fill(ndev, gq, 0, gq->ring_size); + memset(gq->rx_ring, 0, ring_size); + err = rswitch_gwca_queue_ext_ts_fill(ndev, gq, 0, gq->ring_size); if (err < 0) return err; - desc = &gq->ts_ring[gq->ring_size]; /* Last */ + desc = &gq->rx_ring[gq->ring_size]; /* Last */ rswitch_desc_set_dptr(&desc->desc, gq->ring_dma); desc->desc.die_dt = DT_LINKFIX; @@ -594,7 +594,7 @@ static int rswitch_rxdmac_init(struct rswitch_private *priv, int index) struct rswitch_device *rdev = priv->rdev[index]; struct net_device *ndev = rdev->ndev; - return rswitch_gwca_queue_ts_format(ndev, priv, rdev->rx_queue); + return rswitch_gwca_queue_ext_ts_format(ndev, priv, rdev->rx_queue); } static int rswitch_gwca_hw_init(struct rswitch_private *priv) @@ -675,7 +675,7 @@ static bool rswitch_rx(struct net_device *ndev, int *quota) boguscnt = min_t(int, gq->ring_size, *quota); limit = boguscnt; - desc = &gq->ts_ring[gq->cur]; + desc = &gq->rx_ring[gq->cur]; while ((desc->desc.die_dt & DT_MASK) != DT_FEMPTY) { if (--boguscnt < 0) break; @@ -703,14 +703,14 @@ static bool rswitch_rx(struct net_device *ndev, int *quota) rdev->ndev->stats.rx_bytes += pkt_len; gq->cur = rswitch_next_queue_index(gq, true, 1); - desc = &gq->ts_ring[gq->cur]; + desc = &gq->rx_ring[gq->cur]; } num = rswitch_get_num_cur_queues(gq); ret = rswitch_gwca_queue_alloc_skb(gq, gq->dirty, num); if (ret < 0) goto err; - ret = rswitch_gwca_queue_ts_fill(ndev, gq, gq->dirty, num); + ret = rswitch_gwca_queue_ext_ts_fill(ndev, gq, gq->dirty, num); if (ret < 0) goto err; gq->dirty = rswitch_next_queue_index(gq, false, num); @@ -737,7 +737,7 @@ static int rswitch_tx_free(struct net_device *ndev, bool free_txed_only) for (; rswitch_get_num_cur_queues(gq) > 0; gq->dirty = rswitch_next_queue_index(gq, false, 1)) { - desc = &gq->ring[gq->dirty]; + desc = &gq->tx_ring[gq->dirty]; if (free_txed_only && (desc->desc.die_dt & DT_MASK) != DT_FEMPTY) break; @@ -1390,7 +1390,7 @@ static netdev_tx_t rswitch_start_xmit(struct sk_buff *skb, struct net_device *nd } gq->skbs[gq->cur] = skb; - desc = &gq->ring[gq->cur]; + desc = &gq->tx_ring[gq->cur]; rswitch_desc_set_dptr(&desc->desc, dma_addr); desc->desc.info_ds = cpu_to_le16(skb->len); diff --git a/drivers/net/ethernet/renesas/rswitch.h b/drivers/net/ethernet/renesas/rswitch.h index 59830ab91a69..390ec242ed69 100644 --- a/drivers/net/ethernet/renesas/rswitch.h +++ b/drivers/net/ethernet/renesas/rswitch.h @@ -915,8 +915,8 @@ struct rswitch_gwca_queue { bool dir_tx; bool gptp; union { - struct rswitch_ext_desc *ring; - struct rswitch_ext_ts_desc *ts_ring; + struct rswitch_ext_desc *tx_ring; + struct rswitch_ext_ts_desc *rx_ring; }; dma_addr_t ring_dma; int ring_size;