netdev - [PATCH net-next v3 3/7] dpaa2-eth: Add helper functions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200529174345.27537-4-ioana.ciornei@nxp.com>
Date:   Fri, 29 May 2020 20:43:41 +0300
From:   Ioana Ciornei <ioana.ciornei@....com>
To:     netdev@...r.kernel.org
Cc:     kuba@...nel.org, davem@...emloft.net,
        Ioana Radulescu <ruxandra.radulescu@....com>,
        Ioana Ciornei <ioana.ciornei@....com>
Subject: [PATCH net-next v3 3/7] dpaa2-eth: Add helper functions

From: Ioana Radulescu <ruxandra.radulescu@....com>

Add convenient helper functions that determines whether Rx/Tx pause
frames are enabled based on link state flags received from firmware.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@....com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
Changes in v3:
 - none

 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c     |  3 +--
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h     | 11 +++++++++++
 drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c |  5 ++---
 3 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index b3722ad60fae..c521f4afba8e 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -1333,8 +1333,7 @@ static int link_state_update(struct dpaa2_eth_priv *priv)
 	 * Rx FQ taildrop configuration as well. We configure taildrop
 	 * only when pause frame generation is disabled.
 	 */
-	tx_pause = !!(state.options & DPNI_LINK_OPT_PAUSE) ^
-		   !!(state.options & DPNI_LINK_OPT_ASYM_PAUSE);
+	tx_pause = dpaa2_eth_tx_pause_enabled(state.options);
 	dpaa2_eth_set_rx_taildrop(priv, !tx_pause);
 
 	/* When we manage the MAC/PHY using phylink there is no need
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
index 7856f69bcf36..6384f6a23349 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
@@ -510,6 +510,17 @@ enum dpaa2_eth_rx_dist {
 	(dpaa2_eth_cmp_dpni_ver((priv), DPNI_PAUSE_VER_MAJOR,	\
 				DPNI_PAUSE_VER_MINOR) >= 0)
 
+static inline bool dpaa2_eth_tx_pause_enabled(u64 link_options)
+{
+	return !!(link_options & DPNI_LINK_OPT_PAUSE) ^
+	       !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE);
+}
+
+static inline bool dpaa2_eth_rx_pause_enabled(u64 link_options)
+{
+	return !!(link_options & DPNI_LINK_OPT_PAUSE);
+}
+
 static inline
 unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv,
 				       struct sk_buff *skb)
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
index 8bf169783bea..e88269fe3de7 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c
@@ -130,9 +130,8 @@ static void dpaa2_eth_get_pauseparam(struct net_device *net_dev,
 		return;
 	}
 
-	pause->rx_pause = !!(link_options & DPNI_LINK_OPT_PAUSE);
-	pause->tx_pause = pause->rx_pause ^
-			  !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE);
+	pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options);
+	pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options);
 	pause->autoneg = AUTONEG_DISABLE;
 }
 
-- 
2.17.1