From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754412AbdAZWW3 (ORCPT ); Thu, 26 Jan 2017 17:22:29 -0500 Received: from mail-wm0-f46.google.com ([74.125.82.46]:37130 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753562AbdAZWSh (ORCPT ); Thu, 26 Jan 2017 17:18:37 -0500 From: Netanel Belgazal To: linux-kernel@vger.kernel.org, davem@davemloft.net, netdev@vger.kernel.org Cc: Netanel Belgazal , dwmw@amazon.com, zorik@annapurnalabs.com, alex@annapurnalabs.com, saeed@annapurnalabs.com, msw@amazon.com, aliguori@amazon.com, nafea@annapurnalabs.com, eric.dumazet@gmail.com Subject: [PATCH V3 net-next 03/14] net/ena: fix queues number calculation Date: Fri, 27 Jan 2017 00:18:05 +0200 Message-Id: <1485469096-5271-4-git-send-email-netanel@annapurnalabs.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1485469096-5271-1-git-send-email-netanel@annapurnalabs.com> References: <1485469096-5271-1-git-send-email-netanel@annapurnalabs.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The ENA driver tries to open a queue per vCPU. To determine how many vCPUs the instance have it uses num_possible_cpus() while it should have use num_online_cpus() instead. Signed-off-by: Netanel Belgazal --- drivers/net/ethernet/amazon/ena/ena_netdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c index cb60567..f409cfd 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -2660,7 +2660,7 @@ static int ena_calc_io_queue_num(struct pci_dev *pdev, io_sq_num = get_feat_ctx->max_queues.max_sq_num; } - io_queue_num = min_t(int, num_possible_cpus(), ENA_MAX_NUM_IO_QUEUES); + io_queue_num = min_t(int, num_online_cpus(), ENA_MAX_NUM_IO_QUEUES); io_queue_num = min_t(int, io_queue_num, io_sq_num); io_queue_num = min_t(int, io_queue_num, get_feat_ctx->max_queues.max_cq_num); -- 2.7.4