diff options
Diffstat (limited to 'drivers/net/ethernet/intel/idpf/idpf_controlq.c')
| -rw-r--r-- | drivers/net/ethernet/intel/idpf/idpf_controlq.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/net/ethernet/intel/idpf/idpf_controlq.c b/drivers/net/ethernet/intel/idpf/idpf_controlq.c index c7f43d2fcd13..4849590a5591 100644 --- a/drivers/net/ethernet/intel/idpf/idpf_controlq.c +++ b/drivers/net/ethernet/intel/idpf/idpf_controlq.c @@ -516,6 +516,8 @@ post_buffs_out: /* Wrap to end of end ring since current ntp is 0 */ cq->next_to_post = cq->ring_size - 1; + dma_wmb(); + wr32(hw, cq->reg.tail, cq->next_to_post); } @@ -546,11 +548,6 @@ int idpf_ctlq_recv(struct idpf_ctlq_info *cq, u16 *num_q_msg, int err = 0; u16 i; - if (*num_q_msg == 0) - return 0; - else if (*num_q_msg > cq->ring_size) - return -EBADR; - /* take the lock before we start messing with the ring */ mutex_lock(&cq->cq_lock); |