From mboxrd@z Thu Jan 1 00:00:00 1970 From: Corentin Labbe Subject: Re: [PATCH net-next 2/2] net: stmmac: fix number of tx queues in stmmac_poll Date: Mon, 27 Mar 2017 11:09:41 +0200 Message-ID: <20170327090941.GC12523@Red> References: <20170325072621.GA20997@Red> <9f9f20d0-198b-6928-6c78-6982030f9101@synopsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Cc: davem@davemloft.net, peppe.cavallaro@st.com, alexandre.torgue@st.com, thierry.reding@gmail.com, sergei.shtylyov@cogentembedded.com, f.fainelli@gmail.com, niklas.cassel@axis.com, netdev@vger.kernel.org To: Joao Pinto Return-path: Received: from mail-wr0-f194.google.com ([209.85.128.194]:36165 "EHLO mail-wr0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751917AbdC0JLF (ORCPT ); Mon, 27 Mar 2017 05:11:05 -0400 Received: by mail-wr0-f194.google.com with SMTP id u1so11090579wra.3 for ; Mon, 27 Mar 2017 02:10:17 -0700 (PDT) Content-Disposition: inline In-Reply-To: <9f9f20d0-198b-6928-6c78-6982030f9101@synopsys.com> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, Mar 27, 2017 at 10:04:57AM +0100, Joao Pinto wrote: > Ās 7:26 AM de 3/25/2017, Corentin Labbe escreveu: > > On Fri, Mar 24, 2017 at 05:16:45PM +0000, Joao Pinto wrote: > >> For cores that have more than 1 TX queue configured, the kernel would crash, > >> since only one TX queue is permitted by default. > >> > >> Signed-off-by: Joao Pinto > >> --- > >> drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- > >> 1 file changed, 1 insertion(+), 1 deletion(-) > >> > >> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > >> index 3827952..1eab084 100644 > >> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > >> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c > >> @@ -3429,7 +3429,7 @@ static int stmmac_poll(struct napi_struct *napi, int budget) > >> struct stmmac_rx_queue *rx_q = > >> container_of(napi, struct stmmac_rx_queue, napi); > >> struct stmmac_priv *priv = rx_q->priv_data; > >> - u32 tx_count = priv->dma_cap.number_tx_queues; > >> + u32 tx_count = priv->plat->tx_queues_to_use; > >> u32 chan = rx_q->queue_index; > >> u32 work_done = 0; > >> u32 queue = 0; > >> -- > >> 2.9.3 > >> > > > > This patch fix the performance issue on dwmac-sun8i only. > > Ok, great! > Sorry, in the we, I see that my gigabit dwmac-sun8i didnt work... (but didnt have time to find why). > > The dwmac-sunxi is still broken. > > > > What is the difference between the setups? dwmac-sun8i use chain mode, dwmac-sunxi use ring mode