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net: thunderx: make CFG_DONE message to run through generic send-ack sequence 

At the end of NIC VF initialization VF sends CFG_DONE message to PF without
using nicvf_msg_send_to_pf routine. This potentially could re-write data in
mailbox. This commit is to implement common way of sending CFG_DONE message
by the same way with other configuration messages by using
nicvf_send_msg_to_pf() routine.

Signed-off-by: Vadim Lomovtsev <vlomovtsev@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vadim Lomovtsev 2019-02-20 11:02:43 +00:00 committed by David S. Miller
parent 2ecbe4f4a0
commit 0dd563b9a6
2 changed files with 13 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/cavium/thunder/nic_main.c
View File

@ -1039,7 +1039,7 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf)
case NIC_MBOX_MSG_CFG_DONE:
/* Last message of VF config msg sequence */
nic_enable_vf(nic, vf, true);
goto unlock;
break;
case NIC_MBOX_MSG_SHUTDOWN:
/* First msg in VF teardown sequence */
if (vf >= nic->num_vf_en)

15
drivers/net/ethernet/cavium/thunder/nicvf_main.c
View File

@ -169,6 +169,17 @@ static int nicvf_check_pf_ready(struct nicvf *nic)
return 1;
}
static void nicvf_send_cfg_done(struct nicvf *nic)
{
union nic_mbx mbx = {};
mbx.msg.msg = NIC_MBOX_MSG_CFG_DONE;
if (nicvf_send_msg_to_pf(nic, &mbx)) {
netdev_err(nic->netdev,
"PF didn't respond to CFG DONE msg\n");
}
}
static void nicvf_read_bgx_stats(struct nicvf *nic, struct bgx_stats_msg *bgx)
{
if (bgx->rx)
@ -1416,7 +1427,6 @@ int nicvf_open(struct net_device *netdev)
struct nicvf *nic = netdev_priv(netdev);
struct queue_set *qs = nic->qs;
struct nicvf_cq_poll *cq_poll = NULL;
union nic_mbx mbx = {};
/* wait till all queued set_rx_mode tasks completes if any */
drain_workqueue(nic->nicvf_rx_mode_wq);
@ -1515,8 +1525,7 @@ int nicvf_open(struct net_device *netdev)
nicvf_enable_intr(nic, NICVF_INTR_RBDR, qidx);
/* Send VF config done msg to PF */
mbx.msg.msg = NIC_MBOX_MSG_CFG_DONE;
nicvf_write_to_mbx(nic, &mbx);
nicvf_send_cfg_done(nic);
return 0;
cleanup: