From patchwork Fri Aug 30 09:25:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Bogendoerfer X-Patchwork-Id: 11123637 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D14CB14E5 for ; Fri, 30 Aug 2019 09:26:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B91C823427 for ; Fri, 30 Aug 2019 09:26:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728161AbfH3J0x (ORCPT ); Fri, 30 Aug 2019 05:26:53 -0400 Received: from mx2.suse.de ([195.135.220.15]:41744 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728159AbfH3JZ5 (ORCPT ); Fri, 30 Aug 2019 05:25:57 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 192D0AFB6; Fri, 30 Aug 2019 09:25:56 +0000 (UTC) From: Thomas Bogendoerfer To: Ralf Baechle , Paul Burton , James Hogan , "David S. Miller" , linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH v3 net-next 09/15] net: sgi: ioc3-eth: split ring cleaning/freeing and allocation Date: Fri, 30 Aug 2019 11:25:32 +0200 Message-Id: <20190830092539.24550-10-tbogendoerfer@suse.de> X-Mailer: git-send-email 2.13.7 In-Reply-To: <20190830092539.24550-1-tbogendoerfer@suse.de> References: <20190830092539.24550-1-tbogendoerfer@suse.de> Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Do tx ring cleaning and freeing of rx buffers, when chip is shutdown and allocate buffers before bringing chip up. Signed-off-by: Thomas Bogendoerfer --- drivers/net/ethernet/sgi/ioc3-eth.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/sgi/ioc3-eth.c b/drivers/net/ethernet/sgi/ioc3-eth.c index d32d245dcf18..fe8ee8f1c71f 100644 --- a/drivers/net/ethernet/sgi/ioc3-eth.c +++ b/drivers/net/ethernet/sgi/ioc3-eth.c @@ -108,6 +108,9 @@ static inline unsigned int ioc3_hash(const unsigned char *addr); static void ioc3_start(struct ioc3_private *ip); static inline void ioc3_stop(struct ioc3_private *ip); static void ioc3_init(struct net_device *dev); +static void ioc3_alloc_rx_bufs(struct net_device *dev); +static void ioc3_free_rx_bufs(struct ioc3_private *ip); +static inline void ioc3_clean_tx_ring(struct ioc3_private *ip); static const char ioc3_str[] = "IOC3 Ethernet"; static const struct ethtool_ops ioc3_ethtool_ops; @@ -660,7 +663,11 @@ static void ioc3_error(struct net_device *dev, u32 eisr) net_err_ratelimited("%s: TX PCI error.\n", dev->name); ioc3_stop(ip); + ioc3_free_rx_bufs(ip); + ioc3_clean_tx_ring(ip); + ioc3_init(dev); + ioc3_alloc_rx_bufs(dev); ioc3_start(ip); ioc3_mii_init(ip); @@ -826,16 +833,6 @@ static void ioc3_alloc_rx_bufs(struct net_device *dev) ip->rx_pi = RX_BUFFS; } -static void ioc3_init_rings(struct net_device *dev) -{ - struct ioc3_private *ip = netdev_priv(dev); - - ioc3_free_rx_bufs(ip); - ioc3_alloc_rx_bufs(dev); - - ioc3_clean_tx_ring(ip); -} - static inline void ioc3_ssram_disc(struct ioc3_private *ip) { struct ioc3_ethregs *regs = ip->regs; @@ -888,8 +885,6 @@ static void ioc3_init(struct net_device *dev) writel(ip->ehar_h, ®s->ehar_h); writel(ip->ehar_l, ®s->ehar_l); writel(42, ®s->ersr); /* XXX should be random */ - - ioc3_init_rings(dev); } static void ioc3_start(struct ioc3_private *ip) @@ -945,7 +940,9 @@ static int ioc3_open(struct net_device *dev) ip->ehar_h = 0; ip->ehar_l = 0; + ioc3_init(dev); + ioc3_alloc_rx_bufs(dev); ioc3_start(ip); ioc3_mii_start(ip); @@ -1215,7 +1212,6 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) } ioc3_init(dev); - ioc3_start(ip); ip->pdev = pdev; @@ -1266,9 +1262,7 @@ static int ioc3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return 0; out_stop: - ioc3_stop(ip); del_timer_sync(&ip->ioc3_timer); - ioc3_free_rx_bufs(ip); if (ip->rxr) free_page((unsigned long)ip->rxr); if (ip->txr) @@ -1437,7 +1431,11 @@ static void ioc3_timeout(struct net_device *dev) spin_lock_irq(&ip->ioc3_lock); ioc3_stop(ip); + ioc3_free_rx_bufs(ip); + ioc3_clean_tx_ring(ip); + ioc3_init(dev); + ioc3_alloc_rx_bufs(dev); ioc3_start(ip); ioc3_mii_init(ip); ioc3_mii_start(ip);