From: Vijay Kumar Srivastava <vsriv...@xilinx.com>
Device class argument would be used to select compatible driver.
Driver probe would be skipped for incompatible device class.
Signed-off-by: Vijay Kumar Srivastava <vsriv...@xilinx.com>
Signed-off-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
---
drivers/common/sfc_efx/sfc_efx.c | 49 ++++++++++++++++++++++++++++++
drivers/common/sfc_efx/sfc_efx.h | 34 +++++++++++++++++++++
drivers/common/sfc_efx/version.map | 2 ++
3 files changed, 85 insertions(+)
create mode 100644 drivers/common/sfc_efx/sfc_efx.h
diff --git a/drivers/common/sfc_efx/sfc_efx.c b/drivers/common/sfc_efx/sfc_efx.c
index d7a84c9835..a3146db255 100644
--- a/drivers/common/sfc_efx/sfc_efx.c
+++ b/drivers/common/sfc_efx/sfc_efx.c
@@ -7,12 +7,61 @@
* for Solarflare) and Solarflare Communications, Inc.
*/
+#include <string.h>
#include <rte_log.h>
+#include <rte_kvargs.h>
+#include <rte_devargs.h>
#include "sfc_efx_log.h"
+#include "sfc_efx.h"
uint32_t sfc_efx_logtype;
+static int
+sfc_efx_kvarg_dev_class_handler(__rte_unused const char *key,
+ const char *class_str, void *opaque)
+{
+ enum sfc_efx_dev_class *dev_class = opaque;
+
+ if (class_str == NULL)
+ return *dev_class;
+
+ if (strcmp(class_str, "vdpa") == 0) {
+ *dev_class = SFC_EFX_DEV_CLASS_VDPA;
+ } else if (strcmp(class_str, "net") == 0) {
+ *dev_class = SFC_EFX_DEV_CLASS_NET;
+ } else {
+ SFC_EFX_LOG(ERR, "Unsupported class %s.", class_str);
+ *dev_class = SFC_EFX_DEV_CLASS_INVALID;
+ }
+
+ return 0;
+}
+
+enum sfc_efx_dev_class
+sfc_efx_dev_class_get(struct rte_devargs *devargs)
+{
+ struct rte_kvargs *kvargs;
+ const char *key = SFC_EFX_KVARG_DEV_CLASS;
+ enum sfc_efx_dev_class dev_class = SFC_EFX_DEV_CLASS_NET;
+
+ if (devargs == NULL)
+ return dev_class;
+
+ kvargs = rte_kvargs_parse(devargs->args, NULL);
+ if (kvargs == NULL)
+ return dev_class;
+
+ if (rte_kvargs_count(kvargs, key) != 0) {
+ rte_kvargs_process(kvargs, key, sfc_efx_kvarg_dev_class_handler,
+ &dev_class);
+ }
+
+ rte_kvargs_free(kvargs);
+
+ return dev_class;
+}
+
RTE_INIT(sfc_efx_register_logtype)
{
int ret;
diff --git a/drivers/common/sfc_efx/sfc_efx.h b/drivers/common/sfc_efx/sfc_efx.h
new file mode 100644
index 0000000000..bbccd3e9e8
--- /dev/null
+++ b/drivers/common/sfc_efx/sfc_efx.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2019 Solarflare Communications Inc.
+ *
+ * This software was jointly developed between OKTET Labs (under contract
+ * for Solarflare) and Solarflare Communications, Inc.
+ */
+
+#ifndef _SFC_EFX_H_
+#define _SFC_EFX_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define SFC_EFX_KVARG_DEV_CLASS "class"
+
+enum sfc_efx_dev_class {
+ SFC_EFX_DEV_CLASS_INVALID = 0,
+ SFC_EFX_DEV_CLASS_NET,
+ SFC_EFX_DEV_CLASS_VDPA,
+
+ SFC_EFX_DEV_NCLASS
+};
+
+__rte_internal
+enum sfc_efx_dev_class sfc_efx_dev_class_get(struct rte_devargs *devargs);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SFC_EFX_H_ */
diff --git a/drivers/common/sfc_efx/version.map
b/drivers/common/sfc_efx/version.map
index 403feeaf11..a3345d34f7 100644
--- a/drivers/common/sfc_efx/version.map
+++ b/drivers/common/sfc_efx/version.map
@@ -221,6 +221,8 @@ INTERNAL {
efx_txq_nbufs;
efx_txq_size;
+ sfc_efx_dev_class_get;
+
sfc_efx_mcdi_init;
sfc_efx_mcdi_fini;
--
2.30.1
