net/sfc: skip driver probe for incompatible device class

Driver would be probed only for the net device class.

Signed-off-by: Vijay Kumar Srivastava <vsrivast@xilinx.com>
Signed-off-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>

diff --git a/doc/guides/nics/sfc_efx.rst b/doc/guides/nics/sfc_efx.rst
index b6047cf..cf1269c 100644 (file)
--- a/doc/guides/nics/sfc_efx.rst
+++ b/doc/guides/nics/sfc_efx.rst
@@ -357,6 +357,14 @@ allow option like "-a 02:00.0,arg1=value1,...".
 Case-insensitive 1/y/yes/on or 0/n/no/off may be used to specify
 boolean parameters value.
 
+- ``class`` [net|vdpa] (default **net**)
+
+  Choose the mode of operation of ef100 device.
+  **net** device will work as network device and will be probed by net/sfc driver.
+  **vdpa** device will work as vdpa device and will be probed by vdpa/sfc driver.
+  If this parameter is not specified then ef100 device will operate as
+  network device.
+
 - ``rx_datapath`` [auto|efx|ef10|ef10_essb] (default **auto**)
 
   Choose receive datapath implementation.

diff --git a/drivers/net/sfc/sfc.h b/drivers/net/sfc/sfc.h
index c2945b6..b48a818 100644 (file)
--- a/drivers/net/sfc/sfc.h
+++ b/drivers/net/sfc/sfc.h
@@ -22,6 +22,7 @@
 #include "efx.h"
 
 #include "sfc_efx_mcdi.h"
+#include "sfc_efx.h"
 
 #include "sfc_debug.h"
 #include "sfc_log.h"

diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 00a0fd3..23828c2 100644 (file)
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -2161,6 +2161,13 @@ sfc_eth_dev_init(struct rte_eth_dev *dev)
        const struct rte_ether_addr *from;
        int ret;
 
+       if (sfc_efx_dev_class_get(pci_dev->device.devargs) !=
+                       SFC_EFX_DEV_CLASS_NET) {
+               SFC_GENERIC_LOG(DEBUG,
+                       "Incompatible device class: skip probing, should be probed by other sfc driver.");
+               return 1;
+       }
+
        sfc_register_dp();
 
        logtype_main = sfc_register_logtype(&pci_dev->addr,

diff --git a/drivers/net/sfc/sfc_kvargs.c b/drivers/net/sfc/sfc_kvargs.c
index c42b326..0efa92e 100644 (file)
--- a/drivers/net/sfc/sfc_kvargs.c
+++ b/drivers/net/sfc/sfc_kvargs.c
@@ -28,6 +28,7 @@ sfc_kvargs_parse(struct sfc_adapter *sa)
                SFC_KVARG_TX_DATAPATH,
                SFC_KVARG_FW_VARIANT,
                SFC_KVARG_RXD_WAIT_TIMEOUT_NS,
+               SFC_EFX_KVARG_DEV_CLASS,
                NULL,
        };