From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lE5L7-00069K-BX for kexec@lists.infradead.org; Mon, 22 Feb 2021 07:09:06 +0000 Received: by mail-pj1-f69.google.com with SMTP id f5so6740551pjs.6 for ; Sun, 21 Feb 2021 23:07:40 -0800 (PST) From: Coiby Xu Subject: [RFC PATCH 2/4] i40e: use minimal rx and tx ring buffers for kdump Date: Mon, 22 Feb 2021 15:06:59 +0800 Message-Id: <20210222070701.16416-3-coxu@redhat.com> In-Reply-To: <20210222070701.16416-1-coxu@redhat.com> References: <20210222070701.16416-1-coxu@redhat.com> MIME-Version: 1.0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: netdev@vger.kernel.org Cc: kexec@lists.infradead.org, Jesse Brandeburg , open list , intel-wired-lan@lists.osuosl.org, Jakub Kicinski , Tony Nguyen , "David S. Miller" Use the minimum of the number of descriptors thus we will allocate the minimal ring buffers for kdump. Signed-off-by: Coiby Xu --- drivers/net/ethernet/intel/i40e/i40e_main.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 069c86e2f69d..5307f1744766 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -10552,6 +10552,11 @@ static int i40e_set_num_rings_in_vsi(struct i40e_vsi *vsi) return -ENODATA; } + if (is_kdump_kernel()) { + vsi->num_tx_desc = I40E_MIN_NUM_DESCRIPTORS; + vsi->num_rx_desc = I40E_MIN_NUM_DESCRIPTORS; + } + return 0; } -- 2.30.0 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec