diff options
| author | Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> | 2018-04-12 02:47:38 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-13 04:57:28 +0300 |
| commit | cf2cbadc20f5651c3dde9f5ac2ee52fb43aa4ddd (patch) | |
| tree | 8f69b5a96ae8d2dfeb2dcbcb02d2a95df516053d /drivers/net/ethernet/netronome/nfp/flower/cmsg.h | |
| parent | 0b1a989ef5a751b5992842d1934e22de861a848e (diff) | |
| download | linux-cf2cbadc20f5651c3dde9f5ac2ee52fb43aa4ddd.tar.xz | |
nfp: flower: split and limit cmsg skb lists
Introduce a second skb list for handling control messages and limit the
number of allowed messages. Some control messages are considered more
crucial than others, resulting in the need for a second skb list. By
splitting the list into a separate high and low priority list we can
ensure that messages on the high list get added to the head of the list
that gets processed, this however has no functional impact. Previously
there was no limit on the number of messages allowed on the queue, this
could result in the queue growing boundlessly and eventually the host
running out of memory.
Fixes: b985f870a5f0 ("nfp: process control messages in workqueue in flower app")
Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/flower/cmsg.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/flower/cmsg.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h index 96bc0e33980c..b6c0fd053a50 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/cmsg.h +++ b/drivers/net/ethernet/netronome/nfp/flower/cmsg.h @@ -108,6 +108,8 @@ #define NFP_FL_IPV4_TUNNEL_TYPE GENMASK(7, 4) #define NFP_FL_IPV4_PRE_TUN_INDEX GENMASK(2, 0) +#define NFP_FLOWER_WORKQ_MAX_SKBS 30000 + #define nfp_flower_cmsg_warn(app, fmt, args...) \ do { \ if (net_ratelimit()) \ |