From mboxrd@z Thu Jan 1 00:00:00 1970 From: Netanel Belgazal Subject: [PATCH V4 net-next 02/13] net/ena: fix queues number calculation Date: Thu, 9 Feb 2017 15:21:28 +0200 Message-ID: <1486646499-13682-3-git-send-email-netanel@annapurnalabs.com> References: <1486646499-13682-1-git-send-email-netanel@annapurnalabs.com> 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, evgenys@annapurnalabs.com To: linux-kernel@vger.kernel.org, davem@davemloft.net, netdev@vger.kernel.org Return-path: In-Reply-To: <1486646499-13682-1-git-send-email-netanel@annapurnalabs.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.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 d8cd9ca..effe686 100644 --- a/drivers/net/ethernet/amazon/ena/ena_netdev.c +++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c @@ -2658,7 +2658,7 @@ 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