From: Antoine Tenart <antoine.tenart@bootlin.com>
To: davem@davemloft.net, linux@armlinux.org.uk
Cc: Antoine Tenart <antoine.tenart@bootlin.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
thomas.petazzoni@bootlin.com, maxime.chevallier@bootlin.com,
gregory.clement@bootlin.com, miquel.raynal@bootlin.com,
nadavh@marvell.com, stefanc@marvell.com, ymarkman@marvell.com,
mw@semihalf.com
Subject: [PATCH net-next 10/15] net: mvpp2: only update the XLG configuration when needed
Date: Thu, 28 Feb 2019 14:21:23 +0100 [thread overview]
Message-ID: <20190228132128.30154-11-antoine.tenart@bootlin.com> (raw)
In-Reply-To: <20190228132128.30154-1-antoine.tenart@bootlin.com>
This patch improves the XLG configuration function, to only update the
XLG configuration register when a change is needed. This helps not
writing over and over the same XLG configuration each time phylink
request the MAC to be configured. This mimics the GMAC configuration
function.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
---
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index b27966355df9..59ee9e7545b0 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -4506,10 +4506,11 @@ static void mvpp2_mac_an_restart(struct net_device *dev)
static void mvpp2_xlg_config(struct mvpp2_port *port, unsigned int mode,
const struct phylink_link_state *state)
{
- u32 ctrl0, ctrl4;
+ u32 old_ctrl0, ctrl0;
+ u32 old_ctrl4, ctrl4;
- ctrl0 = readl(port->base + MVPP22_XLG_CTRL0_REG);
- ctrl4 = readl(port->base + MVPP22_XLG_CTRL4_REG);
+ old_ctrl0 = ctrl0 = readl(port->base + MVPP22_XLG_CTRL0_REG);
+ old_ctrl4 = ctrl4 = readl(port->base + MVPP22_XLG_CTRL4_REG);
if (state->pause & MLO_PAUSE_TX)
ctrl0 |= MVPP22_XLG_CTRL0_TX_FLOW_CTRL_EN;
@@ -4525,8 +4526,10 @@ static void mvpp2_xlg_config(struct mvpp2_port *port, unsigned int mode,
ctrl4 |= MVPP22_XLG_CTRL4_FWD_FC | MVPP22_XLG_CTRL4_FWD_PFC |
MVPP22_XLG_CTRL4_EN_IDLE_CHECK;
- writel(ctrl0, port->base + MVPP22_XLG_CTRL0_REG);
- writel(ctrl4, port->base + MVPP22_XLG_CTRL4_REG);
+ if (old_ctrl0 != ctrl0)
+ writel(ctrl0, port->base + MVPP22_XLG_CTRL0_REG);
+ if (old_ctrl4 != ctrl4)
+ writel(ctrl4, port->base + MVPP22_XLG_CTRL4_REG);
}
static void mvpp2_gmac_config(struct mvpp2_port *port, unsigned int mode,
--
2.20.1
next prev parent reply other threads:[~2019-02-28 13:26 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 13:21 [PATCH net-next 00/15] net: mvpp2: fixes and improvements Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 01/15] net: mvpp2: fix a typo in the header Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 02/15] net: mvpp2: update the port documentation regarding the GoP Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 03/15] net: mvpp2: fix alignment of MVPP2_GMAC_CONFIG_MII_SPEED definition Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 04/15] net: mvpp2: a port can be disabled even if we use the link IRQ Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 05/15] net: mvpp2: reconfiguring the port interface is PPv2.2 specific Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 06/15] net: mvpp2: fix validate for PPv2.1 Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 07/15] net: mvpp2: fix the computation of the RXQs Antoine Tenart
2019-02-28 15:40 ` [EXT] " Yan Markman
2019-02-28 15:50 ` Antoine Tenart
2019-02-28 15:53 ` Yan Markman
2019-02-28 13:21 ` [PATCH net-next 08/15] net: mvpp2: some AN fields require the link to be down when updated Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 09/15] net: mvpp2: always disable both MACs when disabling a port Antoine Tenart
2019-02-28 13:21 ` Antoine Tenart [this message]
2019-02-28 13:21 ` [PATCH net-next 11/15] net: mvpp2: force the XLG MAC link up or down when not using in-band Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 12/15] net: mvpp2: rework the XLG MAC reset handling Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 13/15] net: mvpp2: reset the MACs when reconfiguring a port Antoine Tenart
2019-02-28 13:21 ` [PATCH net-next 14/15] net: mvpp2: set the XPCS and MPCS in reset when not used Antoine Tenart
2019-02-28 18:40 ` David Miller
2019-02-28 21:23 ` Antoine Tenart
2019-02-28 21:45 ` David Miller
2019-02-28 13:21 ` [PATCH net-next 15/15] net: mvpp2: set the GMAC, XLG MAC, XPCS and MPCS in reset when a port is down Antoine Tenart
2019-02-28 15:00 ` [EXT] " Yan Markman
2019-02-28 15:06 ` Antoine Tenart
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