From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0BA00C04AB5 for ; Thu, 6 Jun 2019 11:56:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D5BC5207E0 for ; Thu, 6 Jun 2019 11:56:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="bfGLSzsK" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728405AbfFFL4B (ORCPT ); Thu, 6 Jun 2019 07:56:01 -0400 Received: from smtp-fw-4101.amazon.com ([72.21.198.25]:6929 "EHLO smtp-fw-4101.amazon.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727783AbfFFL4A (ORCPT ); Thu, 6 Jun 2019 07:56:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1559822159; x=1591358159; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=BTWzwmF+1ZanN43HpWh4WzzT4gf9XKfyD39EOpG7fBM=; b=bfGLSzsKWO1XZgCpQdAuMvF3XVvRcBgjow81lmL4q2Z4QgE6+mbS9Vp/ P3CMseGXzZg8cftEE4JAzCA7e5txo/or+ae4pigIbccz888cbDRx7zKcj Rn67FKyMgTBd1WDzRTkRp4dsB05cIK2s+5T9HBD1f6Xb8qWtcPHW+qz5v g=; X-IronPort-AV: E=Sophos;i="5.60,559,1549929600"; d="scan'208";a="769249822" Received: from iad6-co-svc-p1-lb1-vlan3.amazon.com (HELO email-inbound-relay-2a-69849ee2.us-west-2.amazon.com) ([10.124.125.6]) by smtp-border-fw-out-4101.iad4.amazon.com with ESMTP; 06 Jun 2019 11:55:57 +0000 Received: from EX13MTAUWC001.ant.amazon.com (pdx1-ws-svc-p6-lb9-vlan3.pdx.amazon.com [10.236.137.198]) by email-inbound-relay-2a-69849ee2.us-west-2.amazon.com (Postfix) with ESMTPS id 96597A2420; Thu, 6 Jun 2019 11:55:57 +0000 (UTC) Received: from EX13d09UWC001.ant.amazon.com (10.43.162.60) by EX13MTAUWC001.ant.amazon.com (10.43.162.135) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Thu, 6 Jun 2019 11:55:47 +0000 Received: from EX13MTAUWC001.ant.amazon.com (10.43.162.135) by EX13d09UWC001.ant.amazon.com (10.43.162.60) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Thu, 6 Jun 2019 11:55:47 +0000 Received: from HFA16-8226Y22.hfa16.amazon.com (10.218.52.81) by mail-relay.amazon.com (10.43.162.232) with Microsoft SMTP Server id 15.0.1367.3 via Frontend Transport; Thu, 6 Jun 2019 11:55:44 +0000 From: To: , CC: Sameeh Jubran , , , , , , , , , , , , Subject: [PATCH V1 net-next 5/6] net: ena: add ethtool function for changing io queue sizes Date: Thu, 6 Jun 2019 14:55:19 +0300 Message-ID: <20190606115520.20394-6-sameehj@amazon.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190606115520.20394-1-sameehj@amazon.com> References: <20190606115520.20394-1-sameehj@amazon.com> MIME-Version: 1.0 Content-Type: text/plain Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Sameeh Jubran Implement the set_ringparam() function of the ethtool interface to enable the changing of io queue sizes. Signed-off-by: Arthur Kiyanovski Signed-off-by: Sameeh Jubran --- drivers/net/ethernet/amazon/ena/ena_ethtool.c | 25 +++++++++++++++++++ drivers/net/ethernet/amazon/ena/ena_netdev.c | 14 +++++++++++ drivers/net/ethernet/amazon/ena/ena_netdev.h | 5 +++- 3 files changed, 43 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c index 101d93f16..33e28ad71 100644 --- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c +++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c @@ -495,6 +495,30 @@ static void ena_get_ringparam(struct net_device *netdev, ring->rx_pending = adapter->rx_ring[0].ring_size; } +static int ena_set_ringparam(struct net_device *netdev, + struct ethtool_ringparam *ring) +{ + struct ena_adapter *adapter = netdev_priv(netdev); + u32 new_tx_size, new_rx_size; + + if (ring->rx_mini_pending || ring->rx_jumbo_pending) + return -EINVAL; + + new_tx_size = clamp_val(ring->tx_pending, ENA_MIN_RING_SIZE, + adapter->max_tx_ring_size); + new_tx_size = rounddown_pow_of_two(new_tx_size); + + new_rx_size = clamp_val(ring->rx_pending, ENA_MIN_RING_SIZE, + adapter->max_rx_ring_size); + new_rx_size = rounddown_pow_of_two(new_rx_size); + + if (new_tx_size == adapter->requested_tx_ring_size && + new_rx_size == adapter->requested_rx_ring_size) + return 0; + + return ena_update_queue_sizes(adapter, new_tx_size, new_rx_size); +} + static u32 ena_flow_hash_to_flow_type(u16 hash_fields) { u32 data = 0; @@ -860,6 +884,7 @@ static const struct ethtool_ops ena_ethtool_ops = { .get_coalesce = ena_get_coalesce, .set_coalesce = ena_set_coalesce, .get_ringparam = ena_get_ringparam, + .set_ringparam = ena_set_ringparam, .get_sset_count = ena_get_sset_count, .get_strings = ena_get_strings, .get_ethtool_stats = ena_get_ethtool_stats, diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index 938aca254..7d3837c13 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -2031,6 +2031,20 @@ static int ena_close(struct net_device *netdev) return 0; } +int ena_update_queue_sizes(struct ena_adapter *adapter, + int new_tx_size, + int new_rx_size) +{ + bool dev_up; + + dev_up = test_bit(ENA_FLAG_DEV_UP, &adapter->flags); + ena_close(adapter->netdev); + adapter->requested_tx_ring_size = new_tx_size; + adapter->requested_rx_ring_size = new_rx_size; + ena_init_io_rings(adapter); + return dev_up ? ena_up(adapter) : 0; +} + static void ena_tx_csum(struct ena_com_tx_ctx *ena_tx_ctx, struct sk_buff *skb) { u32 mss = skb_shinfo(skb)->gso_size; diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.h b/drivers/net/ethernet/amazon/ena/ena_netdev.h index e8fe08cb7..2da20ad5a 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.h +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.h @@ -81,7 +81,6 @@ #define ENA_DEFAULT_RING_SIZE (1024) #define ENA_MIN_RING_SIZE (256) - #define ENA_TX_WAKEUP_THRESH (MAX_SKB_FRAGS + 2) #define ENA_DEFAULT_RX_COPYBREAK (256 - NET_IP_ALIGN) @@ -389,6 +388,10 @@ void ena_dump_stats_to_dmesg(struct ena_adapter *adapter); void ena_dump_stats_to_buf(struct ena_adapter *adapter, u8 *buf); +int ena_update_queue_sizes(struct ena_adapter *adapter, + int new_tx_size, + int new_rx_size); + int ena_get_sset_count(struct net_device *netdev, int sset); #endif /* !(ENA_H) */ -- 2.17.1