diff options
author | Sven Auhagen <sven.auhagen@voleatech.de> | 2020-01-25 08:07:03 +0000 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2020-01-27 10:58:20 +0100 |
commit | 79572c98c554dcdb080bca547c871a51716dcdf8 (patch) | |
tree | 4ec050b360ffb13eceb6362c7c39d487f2841122 /drivers/net/ethernet/marvell | |
parent | 122d74fac84204b9a98263636f6f9a3b2e665639 (diff) |
mvneta driver disallow XDP program on hardware buffer management
Recently XDP Support was added to the mvneta driver
for software buffer management only.
It is still possible to attach an XDP program if
hardware buffer management is used.
It is not doing anything at that point.
The patch disallows attaching XDP programs to mvneta
if hardware buffer management is used.
I am sorry about that. It is my first submission and I am having
some troubles with the format of my emails.
v4 -> v5:
- Remove extra tabs
v3 -> v4:
- Please ignore v3 I accidentally submitted
my other patch with git-send-mail and v4 is correct
v2 -> v3:
- My mailserver corrupted the patch
resubmission with git-send-email
v1 -> v2:
- Fixing the patches indentation
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell')
-rw-r--r-- | drivers/net/ethernet/marvell/mvneta.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c index 0449d4b28ade..2dfbfdff45a8 100644 --- a/drivers/net/ethernet/marvell/mvneta.c +++ b/drivers/net/ethernet/marvell/mvneta.c @@ -4226,6 +4226,12 @@ static int mvneta_xdp_setup(struct net_device *dev, struct bpf_prog *prog, return -EOPNOTSUPP; } + if (pp->bm_priv) { + NL_SET_ERR_MSG_MOD(extack, + "Hardware Buffer Management not supported on XDP"); + return -EOPNOTSUPP; + } + need_update = !!pp->xdp_prog != !!prog; if (running && need_update) mvneta_stop(dev); |