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| author |   Joe Damato <jdamato@fastly.com> | 2024-10-11 18:45:01 +0000 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2024-10-14 17:54:29 -0700 |
| commit | 1287c1ae0fc227e5acef11a539eb4e75646e31c7 (patch) | |
| tree | a2d8919d2d1c7e46e231cd97c7c5136825098db3 /net/core/netdev-genl.c | |
| parent | net: napi: Add napi_config (diff) | |
| download | wireguard-linux-1287c1ae0fc227e5acef11a539eb4e75646e31c7.tar.xz wireguard-linux-1287c1ae0fc227e5acef11a539eb4e75646e31c7.zip | |
netdev-genl: Support setting per-NAPI config values
Add support to set per-NAPI defer_hard_irqs and gro_flush_timeout.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241011184527.16393-7-jdamato@fastly.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core/netdev-genl.c')
| -rw-r--r-- | net/core/netdev-genl.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/net/core/netdev-genl.c b/net/core/netdev-genl.c index ac19f2e6cfbe..b49c3b4e5fbe 100644 --- a/net/core/netdev-genl.c +++ b/net/core/netdev-genl.c @@ -304,6 +304,51 @@ int netdev_nl_napi_get_dumpit(struct sk_buff *skb, struct netlink_callback *cb) } static int +netdev_nl_napi_set_config(struct napi_struct *napi, struct genl_info *info) +{ + u64 gro_flush_timeout = 0; + u32 defer = 0; + + if (info->attrs[NETDEV_A_NAPI_DEFER_HARD_IRQS]) { + defer = nla_get_u32(info->attrs[NETDEV_A_NAPI_DEFER_HARD_IRQS]); + napi_set_defer_hard_irqs(napi, defer); + } + + if (info->attrs[NETDEV_A_NAPI_GRO_FLUSH_TIMEOUT]) { + gro_flush_timeout = nla_get_uint(info->attrs[NETDEV_A_NAPI_GRO_FLUSH_TIMEOUT]); + napi_set_gro_flush_timeout(napi, gro_flush_timeout); + } + + return 0; +} + +int netdev_nl_napi_set_doit(struct sk_buff *skb, struct genl_info *info) +{ + struct napi_struct *napi; + unsigned int napi_id; + int err; + + if (GENL_REQ_ATTR_CHECK(info, NETDEV_A_NAPI_ID)) + return -EINVAL; + + napi_id = nla_get_u32(info->attrs[NETDEV_A_NAPI_ID]); + + rtnl_lock(); + + napi = napi_by_id(napi_id); + if (napi) { + err = netdev_nl_napi_set_config(napi, info); + } else { + NL_SET_BAD_ATTR(info->extack, info->attrs[NETDEV_A_NAPI_ID]); + err = -ENOENT; + } + + rtnl_unlock(); + + return err; +} + +static int netdev_nl_queue_fill_one(struct sk_buff *rsp, struct net_device *netdev, u32 q_idx, u32 q_type, const struct genl_info *info) { |