linux-kernel - Re: [PATCH v1 21/47] ethernet: myri10ge: use arch_phys_wc

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Message-ID: <20150321070759.GB8766@gtest01.arcus>
Date:	Sat, 21 Mar 2015 16:08:00 +0900
From:	Hyong-Youb Kim <hkim@...i.com>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
CC:	<luto@...capital.net>, <mingo@...hat.com>, <tglx@...utronix.de>,
	<hpa@...or.com>, <jgross@...e.com>, <JBeulich@...e.com>,
	<bp@...e.de>, <suresh.b.siddha@...el.com>,
	<venkatesh.pallipadi@...el.com>, <airlied@...hat.com>,
	<linux-kernel@...r.kernel.org>, <linux-fbdev@...r.kernel.org>,
	<x86@...nel.org>, <xen-devel@...ts.xenproject.org>,
	"Luis R. Rodriguez" <mcgrof@...e.com>, Ingo Molnar <mingo@...e.hu>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Hyong-Youb Kim <hykim@...i.com>, <netdev@...r.kernel.org>,
	Antonino Daplas <adaplas@...il.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>
Subject: Re: [PATCH v1 21/47] ethernet: myri10ge: use arch_phys_wc_add()

On Fri, Mar 20, 2015 at 04:18:11PM -0700, Luis R. Rodriguez wrote:
> From: "Luis R. Rodriguez" <mcgrof@...e.com>
> 
> This driver already uses ioremap_wc() on the same range
> so when write-combining is available that will be used
> instead.
> 
[...]
> --- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
> +++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
[...]
> @@ -1984,7 +1979,6 @@ myri10ge_get_ethtool_stats(struct net_device *netdev,
>  		data[i] = ((u64 *)&link_stats)[i];
>  
>  	data[i++] = (unsigned int)mgp->tx_boundary;
> -	data[i++] = (unsigned int)mgp->wc_enabled;
>  	data[i++] = (unsigned int)mgp->pdev->irq;
>  	data[i++] = (unsigned int)mgp->msi_enabled;
>  	data[i++] = (unsigned int)mgp->msix_enabled;

You would have to delete "WC from myri10ge_gstrings_main_stats too.
Something like below.  Thanks.

@@ -1905,7 +1905,7 @@ static const char myri10ge_gstrings_main_stats[][ETH_GSTRING_LEN] = {
 	"tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 	"tx_heartbeat_errors", "tx_window_errors",
 	/* device-specific stats */
-	"tx_boundary", "WC", "irq", "MSI", "MSIX",
+	"tx_boundary", "irq", "MSI", "MSIX",
 	"read_dma_bw_MBs", "write_dma_bw_MBs", "read_write_dma_bw_MBs",
 	"serial_number", "watchdog_resets",
 #ifdef CONFIG_MYRI10GE_DCA
--
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