[dpdk-dev,v2] net/tap: return empty port offload capabilities
Checks
Commit Message
Fix internal report on port specific offload capabilities to be 0 (no
capabilities). Before this commit port capabilities were a clone of queue
capabilities, however the current TAP offload capabilities (e.g.
checksum calculation) are per queue and are not specific per port.
This commit fixes an internal validation check for new configured
queue offloads.
The port capability API keeps reporting all queue capabilities as port
capabilities.
Fixes: 95ae196ae10b ("net/tap: use new Rx offloads API")
Fixes: 818fe14a9891 ("net/tap: use new Tx offloads API")
Cc: stable@dpdk.org
Signed-off-by: Ophir Munk <ophirmu@mellanox.com>
---
v1: initial release
v2: Fix log error message and update commit message
drivers/net/tap/rte_eth_tap.c | 24 ++++++++----------------
1 file changed, 8 insertions(+), 16 deletions(-)
Comments
On 4/26/2018 12:13 PM, Ophir Munk wrote:
> Fix internal report on port specific offload capabilities to be 0 (no
> capabilities). Before this commit port capabilities were a clone of queue
> capabilities, however the current TAP offload capabilities (e.g.
> checksum calculation) are per queue and are not specific per port.
> This commit fixes an internal validation check for new configured
> queue offloads.
> The port capability API keeps reporting all queue capabilities as port
> capabilities.
>
> Fixes: 95ae196ae10b ("net/tap: use new Rx offloads API")
> Fixes: 818fe14a9891 ("net/tap: use new Tx offloads API")
> Cc: stable@dpdk.org
>
> Signed-off-by: Ophir Munk <ophirmu@mellanox.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
On 4/26/2018 5:56 PM, Ferruh Yigit wrote:
> On 4/26/2018 12:13 PM, Ophir Munk wrote:
>> Fix internal report on port specific offload capabilities to be 0 (no
>> capabilities). Before this commit port capabilities were a clone of queue
>> capabilities, however the current TAP offload capabilities (e.g.
>> checksum calculation) are per queue and are not specific per port.
>> This commit fixes an internal validation check for new configured
>> queue offloads.
>> The port capability API keeps reporting all queue capabilities as port
>> capabilities.
>>
>> Fixes: 95ae196ae10b ("net/tap: use new Rx offloads API")
>> Fixes: 818fe14a9891 ("net/tap: use new Tx offloads API")
>> Cc: stable@dpdk.org
>>
>> Signed-off-by: Ophir Munk <ophirmu@mellanox.com>
>
> Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Applied to dpdk-next-net/master, thanks.
@@ -269,14 +269,9 @@ static uint64_t
tap_rx_offload_get_port_capa(void)
{
/*
- * In order to support legacy apps,
- * report capabilities also as port capabilities.
+ * No specific port Rx offload capabilities.
*/
- return DEV_RX_OFFLOAD_SCATTER |
- DEV_RX_OFFLOAD_IPV4_CKSUM |
- DEV_RX_OFFLOAD_UDP_CKSUM |
- DEV_RX_OFFLOAD_TCP_CKSUM |
- DEV_RX_OFFLOAD_CRC_STRIP;
+ return 0;
}
static uint64_t
@@ -403,14 +398,9 @@ static uint64_t
tap_tx_offload_get_port_capa(void)
{
/*
- * In order to support legacy apps,
- * report capabilities also as port capabilities.
+ * No specific port Tx offload capabilities.
*/
- return DEV_TX_OFFLOAD_MULTI_SEGS |
- DEV_TX_OFFLOAD_IPV4_CKSUM |
- DEV_TX_OFFLOAD_UDP_CKSUM |
- DEV_TX_OFFLOAD_TCP_CKSUM |
- DEV_TX_OFFLOAD_TCP_TSO;
+ return 0;
}
static uint64_t
@@ -787,7 +777,8 @@ tap_dev_stop(struct rte_eth_dev *dev)
static int
tap_dev_configure(struct rte_eth_dev *dev)
{
- uint64_t supp_tx_offloads = tap_tx_offload_get_port_capa();
+ uint64_t supp_tx_offloads = tap_tx_offload_get_port_capa() |
+ tap_tx_offload_get_queue_capa();
uint64_t tx_offloads = dev->data->dev_conf.txmode.offloads;
if ((tx_offloads & supp_tx_offloads) != tx_offloads) {
@@ -1351,7 +1342,8 @@ tap_tx_queue_setup(struct rte_eth_dev *dev,
" or supported offloads 0x%" PRIx64,
(void *)dev, tx_conf->offloads,
dev->data->dev_conf.txmode.offloads,
- tap_tx_offload_get_port_capa());
+ (tap_tx_offload_get_port_capa() |
+ tap_tx_offload_get_queue_capa()));
return -rte_errno;
}
}