* [dpdk-dev] [PATCH] net/virtio: fix advertised Rx offload capabilities
@ 2017-01-11 17:05 Olivier Matz
2017-01-16 6:12 ` Yuanhan Liu
2017-01-17 10:35 ` [dpdk-dev] [PATCH v2] " Olivier Matz
0 siblings, 2 replies; 6+ messages in thread
From: Olivier Matz @ 2017-01-11 17:05 UTC (permalink / raw)
To: dev, yuanhan.liu; +Cc: stable
When the virtio PMD is used on top of a vhost that does not support
offloads, Rx offload capabilities are still advertised by
virtio_dev_info_get(). But if an application tries to start the PMD with
Rx offloads enabled (rxmode.hw_ip_checksum = 1), the initialization of
the device will fail with -ENOTSUP and the following log:
rx ip checksum not available on this host
This patch fixes the Rx offload capabilities returned by
virtio_dev_info_get() to be consistent with features advertised by the
host.
Fixes: 96cb6711939e ("net/virtio: support Rx checksum offload")
Fixes: 86d59b21468a ("net/virtio: support LRO")
CC: stable@dpdk.org
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
drivers/net/virtio/virtio_ethdev.c | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 817fedf..0d7f587 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1629,7 +1629,7 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet
static void
virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
{
- uint64_t tso_mask;
+ uint64_t tso_mask, host_features;
struct virtio_hw *hw = dev->data->dev_private;
dev_info->pci_dev = hw->dev;
@@ -1643,18 +1643,25 @@ virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
dev_info->default_txconf = (struct rte_eth_txconf) {
.txq_flags = ETH_TXQ_FLAGS_NOOFFLOADS
};
- dev_info->rx_offload_capa =
- DEV_RX_OFFLOAD_TCP_CKSUM |
- DEV_RX_OFFLOAD_UDP_CKSUM |
- DEV_RX_OFFLOAD_TCP_LRO;
- dev_info->tx_offload_capa = 0;
+ host_features = hw->vtpci_ops->get_features(hw);
+ dev_info->rx_offload_capa = 0;
+ if (host_features & (1ULL << VIRTIO_NET_F_GUEST_CSUM)) {
+ dev_info->rx_offload_capa |=
+ DEV_RX_OFFLOAD_TCP_CKSUM |
+ DEV_RX_OFFLOAD_UDP_CKSUM;
+ }
+ tso_mask = (1ULL << VIRTIO_NET_F_GUEST_TSO4) |
+ (1ULL << VIRTIO_NET_F_GUEST_TSO6);
+ if ((host_features & tso_mask) == tso_mask)
+ dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_TCP_LRO;
+
+ dev_info->tx_offload_capa = 0;
if (hw->guest_features & (1ULL << VIRTIO_NET_F_CSUM)) {
dev_info->tx_offload_capa |=
DEV_TX_OFFLOAD_UDP_CKSUM |
DEV_TX_OFFLOAD_TCP_CKSUM;
}
-
tso_mask = (1ULL << VIRTIO_NET_F_HOST_TSO4) |
(1ULL << VIRTIO_NET_F_HOST_TSO6);
if ((hw->guest_features & tso_mask) == tso_mask)
--
2.8.1
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-dev] [PATCH] net/virtio: fix advertised Rx offload capabilities
2017-01-11 17:05 [dpdk-dev] [PATCH] net/virtio: fix advertised Rx offload capabilities Olivier Matz
@ 2017-01-16 6:12 ` Yuanhan Liu
2017-01-17 10:33 ` Olivier Matz
2017-01-17 10:35 ` [dpdk-dev] [PATCH v2] " Olivier Matz
1 sibling, 1 reply; 6+ messages in thread
From: Yuanhan Liu @ 2017-01-16 6:12 UTC (permalink / raw)
To: Olivier Matz; +Cc: dev, stable
On Wed, Jan 11, 2017 at 06:05:25PM +0100, Olivier Matz wrote:
> When the virtio PMD is used on top of a vhost that does not support
> offloads, Rx offload capabilities are still advertised by
> virtio_dev_info_get(). But if an application tries to start the PMD with
> Rx offloads enabled (rxmode.hw_ip_checksum = 1), the initialization of
> the device will fail with -ENOTSUP and the following log:
>
> rx ip checksum not available on this host
>
> This patch fixes the Rx offload capabilities returned by
> virtio_dev_info_get() to be consistent with features advertised by the
> host.
>
> Fixes: 96cb6711939e ("net/virtio: support Rx checksum offload")
> Fixes: 86d59b21468a ("net/virtio: support LRO")
Hi Olivier,
This patch doesn't apply cleanly on top of next-virtio repo, would you
midn to send v2, so that I can apply?
Thanks.
--yliu
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-dev] [PATCH] net/virtio: fix advertised Rx offload capabilities
2017-01-16 6:12 ` Yuanhan Liu
@ 2017-01-17 10:33 ` Olivier Matz
0 siblings, 0 replies; 6+ messages in thread
From: Olivier Matz @ 2017-01-17 10:33 UTC (permalink / raw)
To: Yuanhan Liu; +Cc: dev, stable
On Mon, 16 Jan 2017 14:12:43 +0800, Yuanhan Liu
<yuanhan.liu@linux.intel.com> wrote:
> On Wed, Jan 11, 2017 at 06:05:25PM +0100, Olivier Matz wrote:
> > When the virtio PMD is used on top of a vhost that does not support
> > offloads, Rx offload capabilities are still advertised by
> > virtio_dev_info_get(). But if an application tries to start the PMD
> > with Rx offloads enabled (rxmode.hw_ip_checksum = 1), the
> > initialization of the device will fail with -ENOTSUP and the
> > following log:
> >
> > rx ip checksum not available on this host
> >
> > This patch fixes the Rx offload capabilities returned by
> > virtio_dev_info_get() to be consistent with features advertised by
> > the host.
> >
> > Fixes: 96cb6711939e ("net/virtio: support Rx checksum offload")
> > Fixes: 86d59b21468a ("net/virtio: support LRO")
>
> Hi Olivier,
>
> This patch doesn't apply cleanly on top of next-virtio repo, would you
> midn to send v2, so that I can apply?
Sure, will do.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [dpdk-dev] [PATCH v2] net/virtio: fix advertised Rx offload capabilities
2017-01-11 17:05 [dpdk-dev] [PATCH] net/virtio: fix advertised Rx offload capabilities Olivier Matz
2017-01-16 6:12 ` Yuanhan Liu
@ 2017-01-17 10:35 ` Olivier Matz
2017-01-17 11:08 ` Yuanhan Liu
1 sibling, 1 reply; 6+ messages in thread
From: Olivier Matz @ 2017-01-17 10:35 UTC (permalink / raw)
To: dev, yuanhan.liu; +Cc: stable
When the virtio PMD is used on top of a vhost that does not support
offloads, Rx offload capabilities are still advertised by
virtio_dev_info_get(). But if an application tries to start the PMD with
Rx offloads enabled (rxmode.hw_ip_checksum = 1), the initialization of
the device will fail with -ENOTSUP and the following log:
rx ip checksum not available on this host
This patch fixes the Rx offload capabilities returned by
virtio_dev_info_get() to be consistent with features advertised by the
host.
Fixes: 96cb6711939e ("net/virtio: support Rx checksum offload")
Fixes: 86d59b21468a ("net/virtio: support LRO")
CC: stable@dpdk.org
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
---
v1 -> v2:
- rebase on top of virtio-net
drivers/net/virtio/virtio_ethdev.c | 21 ++++++++++++++-------
1 file changed, 14 insertions(+), 7 deletions(-)
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index d580257..df2c24b 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1829,7 +1829,7 @@ virtio_dev_link_update(struct rte_eth_dev *dev, __rte_unused int wait_to_complet
static void
virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
{
- uint64_t tso_mask;
+ uint64_t tso_mask, host_features;
struct virtio_hw *hw = dev->data->dev_private;
dev_info->pci_dev = dev->device ? RTE_DEV_TO_PCI(dev->device) : NULL;
@@ -1843,18 +1843,25 @@ virtio_dev_info_get(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
dev_info->default_txconf = (struct rte_eth_txconf) {
.txq_flags = ETH_TXQ_FLAGS_NOOFFLOADS
};
- dev_info->rx_offload_capa =
- DEV_RX_OFFLOAD_TCP_CKSUM |
- DEV_RX_OFFLOAD_UDP_CKSUM |
- DEV_RX_OFFLOAD_TCP_LRO;
- dev_info->tx_offload_capa = 0;
+ host_features = hw->vtpci_ops->get_features(hw);
+ dev_info->rx_offload_capa = 0;
+ if (host_features & (1ULL << VIRTIO_NET_F_GUEST_CSUM)) {
+ dev_info->rx_offload_capa |=
+ DEV_RX_OFFLOAD_TCP_CKSUM |
+ DEV_RX_OFFLOAD_UDP_CKSUM;
+ }
+ tso_mask = (1ULL << VIRTIO_NET_F_GUEST_TSO4) |
+ (1ULL << VIRTIO_NET_F_GUEST_TSO6);
+ if ((host_features & tso_mask) == tso_mask)
+ dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_TCP_LRO;
+
+ dev_info->tx_offload_capa = 0;
if (hw->guest_features & (1ULL << VIRTIO_NET_F_CSUM)) {
dev_info->tx_offload_capa |=
DEV_TX_OFFLOAD_UDP_CKSUM |
DEV_TX_OFFLOAD_TCP_CKSUM;
}
-
tso_mask = (1ULL << VIRTIO_NET_F_HOST_TSO4) |
(1ULL << VIRTIO_NET_F_HOST_TSO6);
if ((hw->guest_features & tso_mask) == tso_mask)
--
2.8.1
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-dev] [PATCH v2] net/virtio: fix advertised Rx offload capabilities
2017-01-17 10:35 ` [dpdk-dev] [PATCH v2] " Olivier Matz
@ 2017-01-17 11:08 ` Yuanhan Liu
2017-01-17 11:20 ` Olivier Matz
0 siblings, 1 reply; 6+ messages in thread
From: Yuanhan Liu @ 2017-01-17 11:08 UTC (permalink / raw)
To: Olivier Matz; +Cc: dev, stable
On Tue, Jan 17, 2017 at 11:35:53AM +0100, Olivier Matz wrote:
> + host_features = hw->vtpci_ops->get_features(hw);
Note that hw->vtpci_ops doesn't exist any more, due to fixing the virtio
multiple process bugs. I changed it to:
host_features = VTPCI_OPS(hw)->get_features(hw);
And applied to dpdk-next-virtio.
Thanks.
--yliu
^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [dpdk-dev] [PATCH v2] net/virtio: fix advertised Rx offload capabilities
2017-01-17 11:08 ` Yuanhan Liu
@ 2017-01-17 11:20 ` Olivier Matz
0 siblings, 0 replies; 6+ messages in thread
From: Olivier Matz @ 2017-01-17 11:20 UTC (permalink / raw)
To: Yuanhan Liu; +Cc: dev, stable
On Tue, 17 Jan 2017 19:08:38 +0800, Yuanhan Liu
<yuanhan.liu@linux.intel.com> wrote:
> On Tue, Jan 17, 2017 at 11:35:53AM +0100, Olivier Matz wrote:
>
> > + host_features = hw->vtpci_ops->get_features(hw);
>
> Note that hw->vtpci_ops doesn't exist any more, due to fixing the
> virtio multiple process bugs. I changed it to:
>
> host_features = VTPCI_OPS(hw)->get_features(hw);
>
Sorry I missed it. Thanks.
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2017-01-17 11:20 UTC | newest]
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2017-01-11 17:05 [dpdk-dev] [PATCH] net/virtio: fix advertised Rx offload capabilities Olivier Matz
2017-01-16 6:12 ` Yuanhan Liu
2017-01-17 10:33 ` Olivier Matz
2017-01-17 10:35 ` [dpdk-dev] [PATCH v2] " Olivier Matz
2017-01-17 11:08 ` Yuanhan Liu
2017-01-17 11:20 ` Olivier Matz
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