From: Leon Romanovsky <leon@kernel.org> To: "David S . Miller" <davem@davemloft.net>, Jakub Kicinski <kuba@kernel.org> Cc: Leon Romanovsky <leonro@nvidia.com>, intel-wired-lan@lists.osuosl.org, Jeff Kirsher <jeffrey.t.kirsher@intel.com>, Jesse Brandeburg <jesse.brandeburg@intel.com>, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Paolo Abeni <pabeni@redhat.com>, Raed Salem <raeds@nvidia.com>, Shannon Nelson <shannon.nelson@oracle.com>, Tony Nguyen <anthony.l.nguyen@intel.com>, Steffen Klassert <steffen.klassert@secunet.com> Subject: [PATCH net] ixgbe: ensure IPsec VF<->PF compatibility Date: Wed, 30 Mar 2022 14:01:44 +0300 [thread overview] Message-ID: <3702fad8a016170947da5f3c521a9251cf0f4a22.1648637865.git.leonro@nvidia.com> (raw) From: Leon Romanovsky <leonro@nvidia.com> The VF driver can forward any IPsec flags and such makes the function is not extendable and prone to backward/forward incompatibility. If new software runs on VF, it won't know that PF configured something completely different as it "knows" only XFRM_OFFLOAD_INBOUND flag. Fixes: eda0333ac293 ("ixgbe: add VF IPsec management") Reviewed-by: Raed Salem <raeds@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> --- There is no simple fix for this VF/PF incompatibility as long as FW doesn't filter/decline unsupported options when convey mailbox from VF to PF. --- drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c index e596e1a9fc75..236f244e3f65 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c @@ -903,7 +903,9 @@ int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) /* Tx IPsec offload doesn't seem to work on this * device, so block these requests for now. */ - if (!(sam->flags & XFRM_OFFLOAD_INBOUND)) { + sam->flags = sam->flags & ~XFRM_OFFLOAD_IPV6; + if (!(sam->flags & XFRM_OFFLOAD_INBOUND) || + sam->flags & ~XFRM_OFFLOAD_INBOUND) { err = -EOPNOTSUPP; goto err_out; } -- 2.35.1
WARNING: multiple messages have this Message-ID (diff)
From: Leon Romanovsky <leon@kernel.org> To: intel-wired-lan@osuosl.org Subject: [Intel-wired-lan] [PATCH net] ixgbe: ensure IPsec VF<->PF compatibility Date: Wed, 30 Mar 2022 14:01:44 +0300 [thread overview] Message-ID: <3702fad8a016170947da5f3c521a9251cf0f4a22.1648637865.git.leonro@nvidia.com> (raw) From: Leon Romanovsky <leonro@nvidia.com> The VF driver can forward any IPsec flags and such makes the function is not extendable and prone to backward/forward incompatibility. If new software runs on VF, it won't know that PF configured something completely different as it "knows" only XFRM_OFFLOAD_INBOUND flag. Fixes: eda0333ac293 ("ixgbe: add VF IPsec management") Reviewed-by: Raed Salem <raeds@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> --- There is no simple fix for this VF/PF incompatibility as long as FW doesn't filter/decline unsupported options when convey mailbox from VF to PF. --- drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c index e596e1a9fc75..236f244e3f65 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c @@ -903,7 +903,9 @@ int ixgbe_ipsec_vf_add_sa(struct ixgbe_adapter *adapter, u32 *msgbuf, u32 vf) /* Tx IPsec offload doesn't seem to work on this * device, so block these requests for now. */ - if (!(sam->flags & XFRM_OFFLOAD_INBOUND)) { + sam->flags = sam->flags & ~XFRM_OFFLOAD_IPV6; + if (!(sam->flags & XFRM_OFFLOAD_INBOUND) || + sam->flags & ~XFRM_OFFLOAD_INBOUND) { err = -EOPNOTSUPP; goto err_out; } -- 2.35.1
next reply other threads:[~2022-03-30 11:02 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-03-30 11:01 Leon Romanovsky [this message] 2022-03-30 11:01 ` [Intel-wired-lan] [PATCH net] ixgbe: ensure IPsec VF<->PF compatibility Leon Romanovsky 2022-03-30 16:13 ` Shannon Nelson 2022-03-30 16:13 ` [Intel-wired-lan] " Shannon Nelson 2022-03-31 7:45 ` Leon Romanovsky 2022-03-31 7:45 ` [Intel-wired-lan] " Leon Romanovsky
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