diff options
| author | Sunil Goutham <sgoutham@cavium.com> | 2016-11-24 14:48:03 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-25 20:21:17 -0500 |
| commit | 430da208089ba74ff3d2992d80387c8ea5cabd0e (patch) | |
| tree | 191f83ab5927f5c99b7f2189c3da284934740510 /drivers/net/ethernet/cavium/thunder/nic_main.c | |
| parent | d5b2d7a7184062c436f9a2b237e77bdb8e06a936 (diff) | |
| download | op-kernel-dev-430da208089ba74ff3d2992d80387c8ea5cabd0e.zip op-kernel-dev-430da208089ba74ff3d2992d80387c8ea5cabd0e.tar.gz | |
net: thunderx: Pause frame support
Enable pause frames on both Rx and Tx side, configure pause
interval e.t.c. Also support for enable/disable pause frames
on Rx/Tx via ethtool has been added.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nic_main.c')
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/nic_main.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nic_main.c b/drivers/net/ethernet/cavium/thunder/nic_main.c index 17490ec..767234e 100644 --- a/drivers/net/ethernet/cavium/thunder/nic_main.c +++ b/drivers/net/ethernet/cavium/thunder/nic_main.c @@ -898,6 +898,30 @@ static void nic_enable_vf(struct nicpf *nic, int vf, bool enable) bgx_lmac_rx_tx_enable(nic->node, bgx, lmac, enable); } +static void nic_pause_frame(struct nicpf *nic, int vf, struct pfc *cfg) +{ + int bgx, lmac; + struct pfc pfc; + union nic_mbx mbx = {}; + + if (vf >= nic->num_vf_en) + return; + bgx = NIC_GET_BGX_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + lmac = NIC_GET_LMAC_FROM_VF_LMAC_MAP(nic->vf_lmac_map[vf]); + + if (cfg->get) { + bgx_lmac_get_pfc(nic->node, bgx, lmac, &pfc); + mbx.pfc.msg = NIC_MBOX_MSG_PFC; + mbx.pfc.autoneg = pfc.autoneg; + mbx.pfc.fc_rx = pfc.fc_rx; + mbx.pfc.fc_tx = pfc.fc_tx; + nic_send_msg_to_vf(nic, vf, &mbx); + } else { + bgx_lmac_set_pfc(nic->node, bgx, lmac, cfg); + nic_mbx_send_ack(nic, vf); + } +} + /* Interrupt handler to handle mailbox messages from VFs */ static void nic_handle_mbx_intr(struct nicpf *nic, int vf) { @@ -1037,6 +1061,9 @@ static void nic_handle_mbx_intr(struct nicpf *nic, int vf) case NIC_MBOX_MSG_RESET_STAT_COUNTER: ret = nic_reset_stat_counters(nic, vf, &mbx.reset_stat); break; + case NIC_MBOX_MSG_PFC: + nic_pause_frame(nic, vf, &mbx.pfc); + goto unlock; default: dev_err(&nic->pdev->dev, "Invalid msg from VF%d, msg 0x%x\n", vf, mbx.msg.msg); |
