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 962e543..f5e9f94 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 24cedba..4e8d13f 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 db81e70..93fc7ba 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)