From: Saeed Mahameed Add support for the new inactive switchdev mode [1]. A user can start the eswitch in switchdev or switchdev_inactive mode. Active: Traffic is enabled on this eswitch FDB. Inactive: Traffic is ignored/dropped on this eswitch FDB. An example use case: $ devlink dev eswitch set pci/0000:08:00.1 mode switchdev_inactive Setup FDB pipeline and netdev representors ... Once ready to start receiving traffic $ devlink dev eswitch set pci/0000:08:00.1 mode switchdev [1] https://lore.kernel.org/all/20251107000831.157375-1-saeed@kernel.org/ Signed-off-by: Saeed Mahameed --- devlink/devlink.c | 7 ++++++- include/uapi/linux/devlink.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/devlink/devlink.c b/devlink/devlink.c index 35128083..fd9fac21 100644 --- a/devlink/devlink.c +++ b/devlink/devlink.c @@ -45,6 +45,7 @@ #define ESWITCH_MODE_LEGACY "legacy" #define ESWITCH_MODE_SWITCHDEV "switchdev" +#define ESWITCH_MODE_SWITCHDEV_INACTIVE "switchdev_inactive" #define ESWITCH_INLINE_MODE_NONE "none" #define ESWITCH_INLINE_MODE_LINK "link" #define ESWITCH_INLINE_MODE_NETWORK "network" @@ -1428,6 +1429,8 @@ static int eswitch_mode_get(const char *typestr, *p_mode = DEVLINK_ESWITCH_MODE_LEGACY; } else if (strcmp(typestr, ESWITCH_MODE_SWITCHDEV) == 0) { *p_mode = DEVLINK_ESWITCH_MODE_SWITCHDEV; + } else if (strcmp(typestr, ESWITCH_MODE_SWITCHDEV_INACTIVE) == 0) { + *p_mode = DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE; } else { pr_err("Unknown eswitch mode \"%s\"\n", typestr); return -EINVAL; @@ -2848,7 +2851,7 @@ static bool dl_dump_filter(struct dl *dl, struct nlattr **tb) static void cmd_dev_help(void) { pr_err("Usage: devlink dev show [ DEV ]\n"); - pr_err(" devlink dev eswitch set DEV [ mode { legacy | switchdev } ]\n"); + pr_err(" devlink dev eswitch set DEV [ mode { legacy | switchdev | switchdev_inactive } ]\n"); pr_err(" [ inline-mode { none | link | network | transport } ]\n"); pr_err(" [ encap-mode { none | basic } ]\n"); pr_err(" devlink dev eswitch show DEV\n"); @@ -3284,6 +3287,8 @@ static const char *eswitch_mode_name(uint32_t mode) switch (mode) { case DEVLINK_ESWITCH_MODE_LEGACY: return ESWITCH_MODE_LEGACY; case DEVLINK_ESWITCH_MODE_SWITCHDEV: return ESWITCH_MODE_SWITCHDEV; + case DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE: + return ESWITCH_MODE_SWITCHDEV_INACTIVE; default: return ""; } } diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h index bcd5fde1..317c088b 100644 --- a/include/uapi/linux/devlink.h +++ b/include/uapi/linux/devlink.h @@ -181,6 +181,7 @@ enum devlink_sb_threshold_type { enum devlink_eswitch_mode { DEVLINK_ESWITCH_MODE_LEGACY, DEVLINK_ESWITCH_MODE_SWITCHDEV, + DEVLINK_ESWITCH_MODE_SWITCHDEV_INACTIVE, }; enum devlink_eswitch_inline_mode { -- 2.51.1