On 10/2/22 00:05, Yuan Wang wrote:
Add a new ethdev API to retrieve supported protocol headers
of a PMD, which helps to configure protocol header based buffer split.
Signed-off-by: Yuan Wang <yuanx.w...@intel.com>
Signed-off-by: Xuan Ding <xuan.d...@intel.com>
Signed-off-by: Wenxuan Wu <wenxuanx...@intel.com>
Reviewed-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
---
doc/guides/rel_notes/release_22_11.rst | 5 ++++
lib/ethdev/ethdev_driver.h | 15 ++++++++++++
lib/ethdev/rte_ethdev.c | 33 ++++++++++++++++++++++++++
lib/ethdev/rte_ethdev.h | 30 +++++++++++++++++++++++
lib/ethdev/version.map | 3 +++
5 files changed, 86 insertions(+)
diff --git a/doc/guides/rel_notes/release_22_11.rst
b/doc/guides/rel_notes/release_22_11.rst
index 0231959874..6a7474a3d6 100644
--- a/doc/guides/rel_notes/release_22_11.rst
+++ b/doc/guides/rel_notes/release_22_11.rst
@@ -96,6 +96,11 @@ New Features
* Added ``rte_event_eth_tx_adapter_queue_stop`` to stop the Tx Adapter
from enqueueing any packets to the Tx queue.
+* **Added new ethdev API for PMD to get buffer split supported protocol types.**
+
+ * Added ``rte_eth_buffer_split_get_supported_hdr_ptypes()``, to get supported
+ header protocols of a PMD to split.
+
ethdev features should be grouped together in release notes.
I'll fix it on applying if a new version is not required.
[snip]
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index 0c2c1088c0..1f0a7f8f3f 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -6002,6 +6002,39 @@ rte_eth_dev_priv_dump(uint16_t port_id, FILE *file)
return eth_err(port_id, (*dev->dev_ops->eth_dev_priv_dump)(dev, file));
}
+int
+rte_eth_buffer_split_get_supported_hdr_ptypes(uint16_t port_id, uint32_t
*ptypes, int num)
+{
+ int i, j;
+ struct rte_eth_dev *dev;
+ const uint32_t *all_types;
+
+ RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+ dev = &rte_eth_devices[port_id];
+
+ if (ptypes == NULL && num > 0) {
+ RTE_ETHDEV_LOG(ERR,
+ "Cannot get ethdev port %u supported header protocol types
to NULL when array size is non zero\n",
+ port_id);
+ return -EINVAL;
+ }
+
+ if (*dev->dev_ops->buffer_split_supported_hdr_ptypes_get == NULL)
+ return -ENOTSUP;
+ all_types = (*dev->dev_ops->buffer_split_supported_hdr_ptypes_get)(dev);
+
+ if (!all_types)
Should be compared with NULL explicitly as coding standard
says. I can fix it on applying as well.
[snip]
