diff options
| author | Hariprasad Kelam <hkelam@marvell.com> | 2022-02-09 12:45:19 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-09 13:02:33 +0000 |
| commit | 8e67558177f8f55dcffa47273c2af0a6f2ab9418 (patch) | |
| tree | 8f8e515c4430e57611ad45df63b73639ea32684a /drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | |
| parent | e740003874edc13e468d19233f99787bedb4bb8e (diff) | |
octeontx2-pf: PFC config support with DCBx
Data centric bridging designed to eliminate packet loss due to
queue overflow by adding enhancements to ethernet network such as
proprity flow control etc. This patch adds support for management
of Priority flow control(PFC) on Octeontx2 and CN10K interfaces.
To enable PFC for all priorities
dcb pfc set dev eth0 prio-pfc all:on/off
To enable PFC on selected priorites
dcb pfc set dev eth0 prio-pfc 0:on/off 1:on/off ..7:on/off
With the ntuple commands user can map Priority to receive queues.
On queue overflow NIX will assert backpressure such that PFC pause frames
are genarated with mapped priority.
To map priority 7 to Queue 1
ethtool -U eth0 flow-type ether dst xx:xx:xx:xx:xx:xx vlan 0xe00a
m 0x1fff queue 1
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c index c154b09ec12f..78142498d046 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -702,6 +702,12 @@ static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (err) goto err_unreg_netdev; +#ifdef CONFIG_DCB + err = otx2_dcbnl_set_ops(netdev); + if (err) + goto err_unreg_netdev; +#endif + return 0; err_unreg_netdev: @@ -744,6 +750,14 @@ static void otx2vf_remove(struct pci_dev *pdev) otx2_config_pause_frm(vf); } +#ifdef CONFIG_DCB + /* Disable PFC config */ + if (vf->pfc_en) { + vf->pfc_en = 0; + otx2_config_priority_flow_ctrl(vf); + } +#endif + cancel_work_sync(&vf->reset_task); otx2_unregister_dl(vf); unregister_netdev(netdev); |