diff options
| author |   Manish Chopra <manishc@marvell.com> | 2019-12-11 09:59:55 -0800 |
|---|---|---|
| committer |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-12-14 12:59:16 -0800 |
| commit | 7113f796bbbced2470cd6d7379d50d7a7a78bf34 (patch) | |
| tree | e50adb6c869661ccfba2241543817b17d6c1a90a /drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | |
| parent | net: ethernet: ti: build cpsw-common for switchdev (diff) | |
| download | linux-dev-7113f796bbbced2470cd6d7379d50d7a7a78bf34.tar.xz linux-dev-7113f796bbbced2470cd6d7379d50d7a7a78bf34.zip | |
bnx2x: Do not handle requests from VFs after parity
Parity error from the hardware will cause PF to lose the state
of their VFs due to PF's internal reload and hardware reset following
the parity error. Restrict any configuration request from the VFs after
the parity as it could cause unexpected hardware behavior, only way
for VFs to recover would be to trigger FLR on VFs and reload them.
Signed-off-by: Manish Chopra <manishc@marvell.com>
Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c index 0752b7fa4d9c..ea0e9394f898 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c @@ -2107,6 +2107,18 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf, { int i; + if (vf->state == VF_LOST) { + /* Just ack the FW and return if VFs are lost + * in case of parity error. VFs are supposed to be timedout + * on waiting for PF response. + */ + DP(BNX2X_MSG_IOV, + "VF 0x%x lost, not handling the request\n", vf->abs_vfid); + + storm_memset_vf_mbx_ack(bp, vf->abs_vfid); + return; + } + /* check if tlv type is known */ if (bnx2x_tlv_supported(mbx->first_tlv.tl.type)) { /* Lock the per vf op mutex and note the locker's identity. |