Trying to query the link status through new kernel ioctl API
ETHTOOL_GLINKSETTINGS was always failing due to kernel bug.
The bug was fixed on version 4.9
this patch uses the legacy ioctl API for lower kernels.
Fixes: 188408719888 ("net/mlx5: fix support for newer link speeds")
CC: sta...@dpdk.org
Signed-off-by: Shahaf Shuler <shah...@mellanox.com>
---
on v2:
* remove HAVE_ETHTOOL_LINK_MODE_*
---
drivers/net/mlx5/Makefile | 15 ---------------
drivers/net/mlx5/mlx5_ethdev.c | 12 +++---------
2 files changed, 3 insertions(+), 24 deletions(-)
diff --git a/drivers/net/mlx5/Makefile b/drivers/net/mlx5/Makefile
index 671089c..0b8f7ba 100644
--- a/drivers/net/mlx5/Makefile
+++ b/drivers/net/mlx5/Makefile
@@ -122,21 +122,6 @@ mlx5_autoconf.h.new: $(RTE_SDK)/buildtools/auto-config-h.sh
infiniband/mlx5_hw.h \
enum MLX5_OPCODE_TSO \
$(AUTOCONF_OUTPUT)
- $Q sh -- '$<' '$@' \
- HAVE_ETHTOOL_LINK_MODE_25G \
- /usr/include/linux/ethtool.h \
- enum ETHTOOL_LINK_MODE_25000baseCR_Full_BIT \
- $(AUTOCONF_OUTPUT)
- $Q sh -- '$<' '$@' \
- HAVE_ETHTOOL_LINK_MODE_50G \
- /usr/include/linux/ethtool.h \
- enum ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT \
- $(AUTOCONF_OUTPUT)
- $Q sh -- '$<' '$@' \
- HAVE_ETHTOOL_LINK_MODE_100G \
- /usr/include/linux/ethtool.h \
- enum ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT \
- $(AUTOCONF_OUTPUT)
# Create mlx5_autoconf.h or update it in case it differs from the new one.
diff --git a/drivers/net/mlx5/mlx5_ethdev.c b/drivers/net/mlx5/mlx5_ethdev.c
index 8efdff7..53599fa 100644
--- a/drivers/net/mlx5/mlx5_ethdev.c
+++ b/drivers/net/mlx5/mlx5_ethdev.c
@@ -46,6 +46,7 @@
#include <netinet/in.h>
#include <linux/ethtool.h>
#include <linux/sockios.h>
+#include <linux/version.h>
#include <fcntl.h>
/* DPDK headers don't like -pedantic. */
@@ -697,7 +698,7 @@ struct priv *
/**
* Retrieve physical link information (unlocked version using new ioctl from
- * Linux 4.5).
+ * Linux 4.9).
*
* @param dev
* Pointer to Ethernet device structure.
@@ -707,7 +708,7 @@ struct priv *
static int
mlx5_link_update_unlocked_gs(struct rte_eth_dev *dev, int wait_to_complete)
{
-#ifdef ETHTOOL_GLINKSETTINGS
+#if KERNEL_VERSION(4, 9, 0) <= LINUX_VERSION_CODE
struct priv *priv = mlx5_get_priv(dev);
struct ethtool_link_settings edata = {
.cmd = ETHTOOL_GLINKSETTINGS,
@@ -757,25 +758,18 @@ struct priv *
ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT |
ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT))
priv->link_speed_capa |= ETH_LINK_SPEED_56G;
- /* Link speeds available in kernel v4.6. */
-#ifdef HAVE_ETHTOOL_LINK_MODE_25G
if (sc & (ETHTOOL_LINK_MODE_25000baseCR_Full_BIT |
ETHTOOL_LINK_MODE_25000baseKR_Full_BIT |
ETHTOOL_LINK_MODE_25000baseSR_Full_BIT))
priv->link_speed_capa |= ETH_LINK_SPEED_25G;
-#endif
-#ifdef HAVE_ETHTOOL_LINK_MODE_50G
if (sc & (ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT |
ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT))
priv->link_speed_capa |= ETH_LINK_SPEED_50G;
-#endif
-#ifdef HAVE_ETHTOOL_LINK_MODE_100G
if (sc & (ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT |
ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT |
ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT |
ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT))
priv->link_speed_capa |= ETH_LINK_SPEED_100G;
-#endif
dev_link.link_duplex = ((edata.duplex == DUPLEX_HALF) ?
ETH_LINK_HALF_DUPLEX : ETH_LINK_FULL_DUPLEX);
dev_link.link_autoneg = !(dev->data->dev_conf.link_speeds &
--
1.8.3.1
