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authorAriel Elior <ariele@broadcom.com>2013-05-27 04:08:28 +0000
committerDavid S. Miller <davem@davemloft.net>2013-05-27 21:41:49 -0700
commit70ca5d746cf0c16576cee43fea6a19116ab49d9c (patch)
treed443883b8d02bff611c693c1c16f2a1545b664de /drivers
parentca1ee4b259ea8c4f91c84ee4c737338658711272 (diff)
downloadblackbird-op-linux-70ca5d746cf0c16576cee43fea6a19116ab49d9c.tar.gz
blackbird-op-linux-70ca5d746cf0c16576cee43fea6a19116ab49d9c.zip
bnx2x: Ack unknown VF messages
A PF should ack the firmware when receiving unknown messages through the VF's mailbox. This prevents the VF mailbox from being stuck in case of a VF sending a message unknown to the PF (e.g. VF with more advanced version). Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 928b074d7d80..282606677bca 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -1605,8 +1605,11 @@ static void bnx2x_vf_mbx_request(struct bnx2x *bp, struct bnx2x_virtf *vf,
bnx2x_vf_mbx_resp(bp, vf);
} else {
/* can't send a response since this VF is unknown to us
- * just unlock the channel and be done with.
+ * just ack the FW to release the mailbox and unlock
+ * the channel.
*/
+ storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
+ mmiowb();
bnx2x_unlock_vf_pf_channel(bp, vf,
mbx->first_tlv.tl.type);
}
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