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| author | Joe Damato <jdamato@fastly.com> | 2025-02-05 19:37:47 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-02-06 16:59:25 -0800 |
| commit | 6597e8d35851e1e0cb381f76ce1d960518fd8c94 (patch) | |
| tree | 6bc4840bf5a436cfec3627b96d0a6b919c291edc /include/net | |
| parent | Merge branch 'io_uring-zero-copy-rx' (diff) | |
| download | linux-6597e8d35851e1e0cb381f76ce1d960518fd8c94.tar.gz linux-6597e8d35851e1e0cb381f76ce1d960518fd8c94.zip | |
netdev-genl: Elide napi_id when not present
There are at least two cases where napi_id may not present and the
napi_id should be elided:
1. Queues could be created, but napi_enable may not have been called
yet. In this case, there may be a NAPI but it may not have an ID and
output of a napi_id should be elided.
2. TX-only NAPIs currently do not have NAPI IDs. If a TX queue happens
to be linked with a TX-only NAPI, elide the NAPI ID from the netlink
output as a NAPI ID of 0 is not useful for users.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250205193751.297211-1-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/busy_poll.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h index c39a426ebf52..741fa7754700 100644 --- a/include/net/busy_poll.h +++ b/include/net/busy_poll.h @@ -24,6 +24,11 @@ */ #define MIN_NAPI_ID ((unsigned int)(NR_CPUS + 1)) +static inline bool napi_id_valid(unsigned int napi_id) +{ + return napi_id >= MIN_NAPI_ID; +} + #define BUSY_POLL_BUDGET 8 #ifdef CONFIG_NET_RX_BUSY_POLL |