From: Haiyang Zhang <haiyangz@linuxonhyperv.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: haiyangz@microsoft.com, kys@microsoft.com,
sthemmin@microsoft.com, olaf@aepfle.de, vkuznets@redhat.com,
devel@linuxdriverproject.org, linux-kernel@vger.kernel.org
Subject: [PATCH net-next,2/3] hv_netvsc: Add handler for LRO setting change
Date: Thu, 20 Sep 2018 17:07:00 +0000 [thread overview]
Message-ID: <20180920170701.9574-3-haiyangz@linuxonhyperv.com> (raw)
In-Reply-To: <20180920170701.9574-1-haiyangz@linuxonhyperv.com>
From: Haiyang Zhang <haiyangz@microsoft.com>
This patch adds the handler for LRO setting change, so that a user
can use ethtool command to enable / disable LRO feature.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/net/hyperv/hyperv_net.h | 4 ++++
drivers/net/hyperv/netvsc_drv.c | 30 ++++++++++++++++++++++++++++++
drivers/net/hyperv/rndis_filter.c | 11 ++++++++---
3 files changed, 42 insertions(+), 3 deletions(-)
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 7f1603dc8128..ef6f766f6389 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -185,6 +185,7 @@ struct rndis_device {
/* Interface */
struct rndis_message;
+struct ndis_offload_params;
struct netvsc_device;
struct netvsc_channel;
struct net_device_context;
@@ -218,6 +219,9 @@ void rndis_filter_device_remove(struct hv_device *dev,
struct netvsc_device *nvdev);
int rndis_filter_set_rss_param(struct rndis_device *rdev,
const u8 *key);
+int rndis_filter_set_offload_params(struct net_device *ndev,
+ struct netvsc_device *nvdev,
+ struct ndis_offload_params *req_offloads);
int rndis_filter_receive(struct net_device *ndev,
struct netvsc_device *net_dev,
struct netvsc_channel *nvchan,
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index f8c18370d9d1..ec699741170b 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1006,6 +1006,8 @@ static void netvsc_init_settings(struct net_device *dev)
ndc->speed = SPEED_UNKNOWN;
ndc->duplex = DUPLEX_FULL;
+
+ dev->features = NETIF_F_LRO;
}
static int netvsc_get_link_ksettings(struct net_device *dev,
@@ -1733,6 +1735,33 @@ static int netvsc_set_ringparam(struct net_device *ndev,
return ret;
}
+static int netvsc_set_features(struct net_device *ndev,
+ netdev_features_t features)
+{
+ netdev_features_t change = features ^ ndev->features;
+ struct net_device_context *ndevctx = netdev_priv(ndev);
+ struct netvsc_device *nvdev = rtnl_dereference(ndevctx->nvdev);
+ struct ndis_offload_params offloads;
+
+ if (!nvdev || nvdev->destroy)
+ return -ENODEV;
+
+ if (!(change & NETIF_F_LRO))
+ return 0;
+
+ memset(&offloads, 0, sizeof(struct ndis_offload_params));
+
+ if (features & NETIF_F_LRO) {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ } else {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ }
+
+ return rndis_filter_set_offload_params(ndev, nvdev, &offloads);
+}
+
static u32 netvsc_get_msglevel(struct net_device *ndev)
{
struct net_device_context *ndev_ctx = netdev_priv(ndev);
@@ -1776,6 +1805,7 @@ static const struct net_device_ops device_ops = {
.ndo_start_xmit = netvsc_start_xmit,
.ndo_change_rx_flags = netvsc_change_rx_flags,
.ndo_set_rx_mode = netvsc_set_rx_mode,
+ .ndo_set_features = netvsc_set_features,
.ndo_change_mtu = netvsc_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = netvsc_set_mac_addr,
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 7bc8ade5c2bd..f94892edaa21 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -716,7 +716,7 @@ int rndis_filter_set_device_mac(struct netvsc_device *nvdev,
return ret;
}
-static int
+int
rndis_filter_set_offload_params(struct net_device *ndev,
struct netvsc_device *nvdev,
struct ndis_offload_params *req_offloads)
@@ -1246,8 +1246,13 @@ static int rndis_netdev_set_hwcaps(struct rndis_device *rndis_device,
if (hwcaps.rsc.ip4 && hwcaps.rsc.ip6) {
net->hw_features |= NETIF_F_LRO;
- offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
- offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ if (net->features & NETIF_F_LRO) {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ } else {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ }
}
/* In case some hw_features disappeared we need to remove them from
--
2.18.0
WARNING: multiple messages have this Message-ID (diff)
From: Haiyang Zhang <haiyangz@linuxonhyperv.com>
To: davem@davemloft.net, netdev@vger.kernel.org
Cc: olaf@aepfle.de, sthemmin@microsoft.com, haiyangz@microsoft.com,
linux-kernel@vger.kernel.org, devel@linuxdriverproject.org,
vkuznets@redhat.com
Subject: [PATCH net-next,2/3] hv_netvsc: Add handler for LRO setting change
Date: Thu, 20 Sep 2018 17:07:00 +0000 [thread overview]
Message-ID: <20180920170701.9574-3-haiyangz@linuxonhyperv.com> (raw)
In-Reply-To: <20180920170701.9574-1-haiyangz@linuxonhyperv.com>
From: Haiyang Zhang <haiyangz@microsoft.com>
This patch adds the handler for LRO setting change, so that a user
can use ethtool command to enable / disable LRO feature.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
---
drivers/net/hyperv/hyperv_net.h | 4 ++++
drivers/net/hyperv/netvsc_drv.c | 30 ++++++++++++++++++++++++++++++
drivers/net/hyperv/rndis_filter.c | 11 ++++++++---
3 files changed, 42 insertions(+), 3 deletions(-)
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 7f1603dc8128..ef6f766f6389 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -185,6 +185,7 @@ struct rndis_device {
/* Interface */
struct rndis_message;
+struct ndis_offload_params;
struct netvsc_device;
struct netvsc_channel;
struct net_device_context;
@@ -218,6 +219,9 @@ void rndis_filter_device_remove(struct hv_device *dev,
struct netvsc_device *nvdev);
int rndis_filter_set_rss_param(struct rndis_device *rdev,
const u8 *key);
+int rndis_filter_set_offload_params(struct net_device *ndev,
+ struct netvsc_device *nvdev,
+ struct ndis_offload_params *req_offloads);
int rndis_filter_receive(struct net_device *ndev,
struct netvsc_device *net_dev,
struct netvsc_channel *nvchan,
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index f8c18370d9d1..ec699741170b 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -1006,6 +1006,8 @@ static void netvsc_init_settings(struct net_device *dev)
ndc->speed = SPEED_UNKNOWN;
ndc->duplex = DUPLEX_FULL;
+
+ dev->features = NETIF_F_LRO;
}
static int netvsc_get_link_ksettings(struct net_device *dev,
@@ -1733,6 +1735,33 @@ static int netvsc_set_ringparam(struct net_device *ndev,
return ret;
}
+static int netvsc_set_features(struct net_device *ndev,
+ netdev_features_t features)
+{
+ netdev_features_t change = features ^ ndev->features;
+ struct net_device_context *ndevctx = netdev_priv(ndev);
+ struct netvsc_device *nvdev = rtnl_dereference(ndevctx->nvdev);
+ struct ndis_offload_params offloads;
+
+ if (!nvdev || nvdev->destroy)
+ return -ENODEV;
+
+ if (!(change & NETIF_F_LRO))
+ return 0;
+
+ memset(&offloads, 0, sizeof(struct ndis_offload_params));
+
+ if (features & NETIF_F_LRO) {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ } else {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ }
+
+ return rndis_filter_set_offload_params(ndev, nvdev, &offloads);
+}
+
static u32 netvsc_get_msglevel(struct net_device *ndev)
{
struct net_device_context *ndev_ctx = netdev_priv(ndev);
@@ -1776,6 +1805,7 @@ static const struct net_device_ops device_ops = {
.ndo_start_xmit = netvsc_start_xmit,
.ndo_change_rx_flags = netvsc_change_rx_flags,
.ndo_set_rx_mode = netvsc_set_rx_mode,
+ .ndo_set_features = netvsc_set_features,
.ndo_change_mtu = netvsc_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = netvsc_set_mac_addr,
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 7bc8ade5c2bd..f94892edaa21 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -716,7 +716,7 @@ int rndis_filter_set_device_mac(struct netvsc_device *nvdev,
return ret;
}
-static int
+int
rndis_filter_set_offload_params(struct net_device *ndev,
struct netvsc_device *nvdev,
struct ndis_offload_params *req_offloads)
@@ -1246,8 +1246,13 @@ static int rndis_netdev_set_hwcaps(struct rndis_device *rndis_device,
if (hwcaps.rsc.ip4 && hwcaps.rsc.ip6) {
net->hw_features |= NETIF_F_LRO;
- offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
- offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ if (net->features & NETIF_F_LRO) {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_ENABLED;
+ } else {
+ offloads.rsc_ip_v4 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ offloads.rsc_ip_v6 = NDIS_OFFLOAD_PARAMETERS_RSC_DISABLED;
+ }
}
/* In case some hw_features disappeared we need to remove them from
--
2.18.0
next prev parent reply other threads:[~2018-09-20 17:08 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-20 17:06 [PATCH net-next,0/3] hv_netvsc: Support LRO/RSC in the vSwitch Haiyang Zhang
2018-09-20 17:06 ` [PATCH net-next,1/3] hv_netvsc: Add support for " Haiyang Zhang
2018-09-20 20:47 ` [PATCH net-next, 1/3] " Stephen Hemminger
2018-09-20 20:56 ` Haiyang Zhang
2018-09-21 0:41 ` Stephen Hemminger
2018-09-20 17:07 ` Haiyang Zhang [this message]
2018-09-20 17:07 ` [PATCH net-next,2/3] hv_netvsc: Add handler for LRO setting change Haiyang Zhang
2018-09-20 17:07 ` [PATCH net-next,3/3] hv_netvsc: Update document for LRO/RSC support Haiyang Zhang
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