Sorry, this patch missed the ack line from Andrew:
Acked-by: Andrew Rybchenko <andrew.rybche...@oktetlabs.ru>
> -----Original Message-----
> From: Xueming(Steven) Li <xuemi...@nvidia.com>
> Sent: Monday, July 5, 2021 2:45 PM
> Cc: dev@dpdk.org; Xueming(Steven) Li <xuemi...@nvidia.com>;
> NBU-Contact-Thomas Monjalon <tho...@monjalon.net>; Matan
> Azrad <ma...@nvidia.com>; Shahaf Shuler <shah...@nvidia.com>; Slava Ovsiienko
> <viachesl...@nvidia.com>; Andrew Rybchenko
> <andrew.rybche...@oktetlabs.ru>; Chas Williams <ch...@att.com>; Min Hu
> (Connor) <humi...@huawei.com>; Beilei Xing
> <beilei.x...@intel.com>; Jingjing Wu <jingjing...@intel.com>
> Subject: [PATCH v8 1/2] devargs: add common key definition
>
> Adds common devargs key definition for "bus", "class" and "driver".
>
> Acked-by: Thomas Monjalon <tho...@monjalon.net>
> Signed-off-by: Xueming Li <xuemi...@nvidia.com>
> ---
> drivers/common/mlx5/mlx5_common.h | 2 --
> drivers/common/mlx5/mlx5_common_pci.c | 2 +-
> drivers/common/sfc_efx/sfc_efx.c | 7 +++----
> drivers/common/sfc_efx/sfc_efx.h | 2 --
> drivers/net/bonding/rte_eth_bond_args.c | 2 +-
> drivers/net/i40e/i40e_ethdev_vf.c | 5 ++---
> drivers/net/iavf/iavf_ethdev.c | 5 ++---
> drivers/net/mlx5/mlx5.c | 4 ++--
> drivers/net/sfc/sfc_kvargs.c | 2 +-
> drivers/vdpa/mlx5/mlx5_vdpa.c | 2 +-
> lib/eal/common/eal_common_devargs.c | 12 ++++++------
> lib/eal/include/rte_devargs.h | 24 ++++++++++++++++++++++++
> 12 files changed, 43 insertions(+), 26 deletions(-)
>
> diff --git a/drivers/common/mlx5/mlx5_common.h
> b/drivers/common/mlx5/mlx5_common.h
> index 1fbefe0fa6..306f2f1ab7 100644
> --- a/drivers/common/mlx5/mlx5_common.h
> +++ b/drivers/common/mlx5/mlx5_common.h
> @@ -208,8 +208,6 @@ __rte_internal
> int mlx5_get_ifname_sysfs(const char *ibdev_path, char *ifname);
>
>
> -#define MLX5_CLASS_ARG_NAME "class"
> -
> enum mlx5_class {
> MLX5_CLASS_INVALID,
> MLX5_CLASS_NET = RTE_BIT64(0),
> diff --git a/drivers/common/mlx5/mlx5_common_pci.c
> b/drivers/common/mlx5/mlx5_common_pci.c
> index 3f16cd21cf..34747c4e07 100644
> --- a/drivers/common/mlx5/mlx5_common_pci.c
> +++ b/drivers/common/mlx5/mlx5_common_pci.c
> @@ -118,7 +118,7 @@ bus_cmdline_options_handler(__rte_unused const char *key,
> static int parse_class_options(const struct
> rte_devargs *devargs) {
> - const char *key = MLX5_CLASS_ARG_NAME;
> + const char *key = RTE_DEVARGS_KEY_CLASS;
> struct rte_kvargs *kvlist;
> int ret = 0;
>
> diff --git a/drivers/common/sfc_efx/sfc_efx.c
> b/drivers/common/sfc_efx/sfc_efx.c
> index 0b78933d9f..2dc5545760 100644
> --- a/drivers/common/sfc_efx/sfc_efx.c
> +++ b/drivers/common/sfc_efx/sfc_efx.c
> @@ -42,7 +42,6 @@ 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)
> @@ -52,9 +51,9 @@ sfc_efx_dev_class_get(struct rte_devargs *devargs)
> 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);
> + if (rte_kvargs_count(kvargs, RTE_DEVARGS_KEY_CLASS) != 0) {
> + rte_kvargs_process(kvargs, RTE_DEVARGS_KEY_CLASS,
> + sfc_efx_kvarg_dev_class_handler, &dev_class);
> }
>
> rte_kvargs_free(kvargs);
> diff --git a/drivers/common/sfc_efx/sfc_efx.h
> b/drivers/common/sfc_efx/sfc_efx.h
> index 6b6164cb1f..c16eca60f3 100644
> --- a/drivers/common/sfc_efx/sfc_efx.h
> +++ b/drivers/common/sfc_efx/sfc_efx.h
> @@ -19,8 +19,6 @@
> 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,
> diff --git a/drivers/net/bonding/rte_eth_bond_args.c
> b/drivers/net/bonding/rte_eth_bond_args.c
> index 764b1b8c8e..5406e1c934 100644
> --- a/drivers/net/bonding/rte_eth_bond_args.c
> +++ b/drivers/net/bonding/rte_eth_bond_args.c
> @@ -18,7 +18,7 @@ const char *pmd_bond_init_valid_arguments[] = {
> PMD_BOND_SOCKET_ID_KVARG,
> PMD_BOND_MAC_ADDR_KVARG,
> PMD_BOND_AGG_MODE_KVARG,
> - "driver",
> + RTE_DEVARGS_KEY_DRIVER,
> NULL
> };
>
> diff --git a/drivers/net/i40e/i40e_ethdev_vf.c
> b/drivers/net/i40e/i40e_ethdev_vf.c
> index 385ebedcd3..0cfe13b7b2 100644
> --- a/drivers/net/i40e/i40e_ethdev_vf.c
> +++ b/drivers/net/i40e/i40e_ethdev_vf.c
> @@ -1660,7 +1660,6 @@ static int
> i40evf_driver_selected(struct rte_devargs *devargs) {
> struct rte_kvargs *kvlist;
> - const char *key = "driver";
> int ret = 0;
>
> if (devargs == NULL)
> @@ -1670,13 +1669,13 @@ i40evf_driver_selected(struct rte_devargs *devargs)
> if (kvlist == NULL)
> return 0;
>
> - if (!rte_kvargs_count(kvlist, key))
> + if (!rte_kvargs_count(kvlist, RTE_DEVARGS_KEY_DRIVER))
> goto exit;
>
> /* i40evf driver selected when there's a key-value pair:
> * driver=i40evf
> */
> - if (rte_kvargs_process(kvlist, key,
> + if (rte_kvargs_process(kvlist, RTE_DEVARGS_KEY_DRIVER,
> i40evf_check_driver_handler, NULL) < 0)
> goto exit;
>
> diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
> index 5290588b17..472538181e 100644
> --- a/drivers/net/iavf/iavf_ethdev.c
> +++ b/drivers/net/iavf/iavf_ethdev.c
> @@ -2448,7 +2448,6 @@ static int
> iavf_drv_i40evf_selected(struct rte_devargs *devargs, uint16_t device_id) {
> struct rte_kvargs *kvlist;
> - const char *key = "driver";
> int ret = 0;
>
> if (device_id != IAVF_DEV_ID_VF &&
> @@ -2464,13 +2463,13 @@ iavf_drv_i40evf_selected(struct rte_devargs *devargs,
> uint16_t device_id)
> if (kvlist == NULL)
> return 0;
>
> - if (!rte_kvargs_count(kvlist, key))
> + if (!rte_kvargs_count(kvlist, RTE_DEVARGS_KEY_DRIVER))
> goto exit;
>
> /* i40evf driver selected when there's a key-value pair:
> * driver=i40evf
> */
> - if (rte_kvargs_process(kvlist, key,
> + if (rte_kvargs_process(kvlist, RTE_DEVARGS_KEY_DRIVER,
> iavf_drv_i40evf_check_handler, NULL) < 0)
> goto exit;
>
> diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c index
> cf1815cb74..d0faa45944 100644
> --- a/drivers/net/mlx5/mlx5.c
> +++ b/drivers/net/mlx5/mlx5.c
> @@ -1931,7 +1931,7 @@ mlx5_args_check(const char *key, const char *val, void
> *opaque)
> config->max_dump_files_num = tmp;
> } else if (strcmp(MLX5_LRO_TIMEOUT_USEC, key) == 0) {
> config->lro.timeout = tmp;
> - } else if (strcmp(MLX5_CLASS_ARG_NAME, key) == 0) {
> + } else if (strcmp(RTE_DEVARGS_KEY_CLASS, key) == 0) {
> DRV_LOG(DEBUG, "class argument is %s.", val);
> } else if (strcmp(MLX5_HP_BUF_SIZE, key) == 0) {
> config->log_hp_size = tmp;
> @@ -2002,7 +2002,7 @@ mlx5_args(struct mlx5_dev_config *config, struct
> rte_devargs *devargs)
> MLX5_REPRESENTOR,
> MLX5_MAX_DUMP_FILES_NUM,
> MLX5_LRO_TIMEOUT_USEC,
> - MLX5_CLASS_ARG_NAME,
> + RTE_DEVARGS_KEY_CLASS,
> MLX5_HP_BUF_SIZE,
> MLX5_RECLAIM_MEM,
> MLX5_SYS_MEM_EN,
> diff --git a/drivers/net/sfc/sfc_kvargs.c b/drivers/net/sfc/sfc_kvargs.c
> index 0efa92ed28..974c05e68e 100644
> --- a/drivers/net/sfc/sfc_kvargs.c
> +++ b/drivers/net/sfc/sfc_kvargs.c
> @@ -28,7 +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,
> + RTE_DEVARGS_KEY_CLASS,
> NULL,
> };
>
> diff --git a/drivers/vdpa/mlx5/mlx5_vdpa.c b/drivers/vdpa/mlx5/mlx5_vdpa.c
> index e5e03e6582..8b5bfd8c3d 100644
> --- a/drivers/vdpa/mlx5/mlx5_vdpa.c
> +++ b/drivers/vdpa/mlx5/mlx5_vdpa.c
> @@ -588,7 +588,7 @@ mlx5_vdpa_args_check_handler(const char *key, const char
> *val, void *opaque)
> unsigned long tmp;
> int n_cores = sysconf(_SC_NPROCESSORS_ONLN);
>
> - if (strcmp(key, "class") == 0)
> + if (strcmp(key, RTE_DEVARGS_KEY_CLASS) == 0)
> return 0;
> errno = 0;
> tmp = strtoul(val, NULL, 0);
> diff --git a/lib/eal/common/eal_common_devargs.c
> b/lib/eal/common/eal_common_devargs.c
> index b31ac879a9..23aaf8b7e4 100644
> --- a/lib/eal/common/eal_common_devargs.c
> +++ b/lib/eal/common/eal_common_devargs.c
> @@ -49,9 +49,9 @@ rte_devargs_layers_parse(struct rte_devargs *devargs,
> const char *str;
> struct rte_kvargs *kvlist;
> } layers[] = {
> - { "bus=", NULL, NULL, },
> - { "class=", NULL, NULL, },
> - { "driver=", NULL, NULL, },
> + { RTE_DEVARGS_KEY_BUS "=", NULL, NULL, },
> + { RTE_DEVARGS_KEY_CLASS "=", NULL, NULL, },
> + { RTE_DEVARGS_KEY_DRIVER "=", NULL, NULL, },
> };
> struct rte_kvargs_pair *kv = NULL;
> struct rte_class *cls = NULL;
> @@ -118,7 +118,7 @@ rte_devargs_layers_parse(struct rte_devargs *devargs,
> if (layers[i].kvlist == NULL)
> continue;
> kv = &layers[i].kvlist->pairs[0];
> - if (strcmp(kv->key, "bus") == 0) {
> + if (strcmp(kv->key, RTE_DEVARGS_KEY_BUS) == 0) {
> bus = rte_bus_find_by_name(kv->value);
> if (bus == NULL) {
> RTE_LOG(ERR, EAL, "Could not find bus
> \"%s\"\n", @@ -126,7 +126,7 @@
> rte_devargs_layers_parse(struct rte_devargs *devargs,
> ret = -EFAULT;
> goto get_out;
> }
> - } else if (strcmp(kv->key, "class") == 0) {
> + } else if (strcmp(kv->key, RTE_DEVARGS_KEY_CLASS) == 0) {
> cls = rte_class_find_by_name(kv->value);
> if (cls == NULL) {
> RTE_LOG(ERR, EAL, "Could not find class
> \"%s\"\n", @@ -134,7 +134,7 @@
> rte_devargs_layers_parse(struct rte_devargs *devargs,
> ret = -EFAULT;
> goto get_out;
> }
> - } else if (strcmp(kv->key, "driver") == 0) {
> + } else if (strcmp(kv->key, RTE_DEVARGS_KEY_DRIVER) == 0) {
> /* Ignore */
> continue;
> }
> diff --git a/lib/eal/include/rte_devargs.h b/lib/eal/include/rte_devargs.h
> index 1e595b3c51..cd90944fe8 100644
> --- a/lib/eal/include/rte_devargs.h
> +++ b/lib/eal/include/rte_devargs.h
> @@ -25,6 +25,30 @@ extern "C" {
> #include <rte_compat.h>
> #include <rte_bus.h>
>
> +/**
> + * Bus type key in global devargs syntax.
> + *
> + * Legacy devargs parser doesn't use this key as bus type
> + * is resolved as first optional value separated by ":".
> + */
> +#define RTE_DEVARGS_KEY_BUS "bus"
> +
> +/**
> + * Class type key in global devargs syntax.
> + *
> + * Legacy devargs parser doesn't parse class type. PMD driver is
> + * encouraged to use this key to resolve class type.
> + */
> +#define RTE_DEVARGS_KEY_CLASS "class"
> +
> +/**
> + * Driver type key in global devargs syntax.
> + *
> + * Legacy devargs parser doesn't parse driver type. PMD driver is
> + * encouraged to use this key to resolve driver type.
> + */
> +#define RTE_DEVARGS_KEY_DRIVER "driver"
> +
> /**
> * Type of generic device
> */
> --
> 2.25.1
