net/sfc: rely on native thread safety in flow mechanism

The changeset that introduced common flow API thread safety
in fact introduced double locking to this particular PMD as
RTE flow API implementation in the PMD has been thread-safe
since the day zero. State this by setting the corresponding
device flag to skip locking imposed by generic RTE flow API.

Fixes: 80d1a9aff7f6 ("ethdev: make flow API thread safe")
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>

diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index 962e54389fbc450a321646f7a80118abac3193c8..f5e9f9495e97c82464861b6e77196ae93bb694c0 100644 (file)
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -246,6 +246,8 @@ Validating flow rules depends on the firmware variant.
 
 The :ref:`flow_isolated_mode` is supported.
 
+The implementation is natively thread-safe.
+
 Ethernet destination individual/group match
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

diff --git a/doc/guides/rel_notes/release_20_11.rst b/doc/guides/rel_notes/release_20_11.rst
index 24cedba167a8bacfde1617fda427c8900570708b..4e8d13fc26c10e87d4575ed324597ec2993abd89 100644 (file)
--- a/doc/guides/rel_notes/release_20_11.rst
+++ b/doc/guides/rel_notes/release_20_11.rst
@@ -220,6 +220,7 @@ New Features
   * Added Alveo SN1000 SmartNICs (EF100 architecture) support including
     flow API transfer rules for switch HW offload
   * Added ARMv8 support
+  * Claimed flow API native thread safety
 
 * **Added Wangxun txgbe PMD.**
 

diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index db81e705fa6a79dc6ec3f1d32a162250d6290547..93fc7baa0dfa2cb42127c7424b90a211c94d0103 100644 (file)
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -2198,6 +2198,7 @@ sfc_eth_dev_init(struct rte_eth_dev *dev)
        /* Copy PCI device info to the dev->data */
        rte_eth_copy_pci_info(dev, pci_dev);
        dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
+       dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
 
        rc = sfc_kvargs_parse(sa);
        if (rc != 0)