[net PATCH] octeontx2-pf: Avoid adding dcbnl_ops for LBK and SDP vf

[net PATCH] octeontx2-pf: Avoid adding dcbnl_ops for LBK and SDP vf

[Suman Ghosh]

Priority flow control is not supported for LBK and SDP vf. This patch
adds support to not add dcbnl_ops for LBK and SDP vf.

Fixes: 8e67558177f8 ("octeontx2-pf: PFC config support with DCBx")
Signed-off-by: Suman Ghosh <sumang@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
index 7ef3ba477d49..9b28be4c4a5d 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c
@@ -729,9 +729,12 @@ static int otx2vf_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 #ifdef CONFIG_DCB
-	err = otx2_dcbnl_set_ops(netdev);
-	if (err)
-		goto err_free_zc_bmap;
+	/* Priority flow control is not supported for LBK and SDP vf(s) */
+	if (!(is_otx2_lbkvf(vf->pdev) || is_otx2_sdp_rep(vf->pdev))) {
+		err = otx2_dcbnl_set_ops(netdev);
+		if (err)
+			goto err_free_zc_bmap;
+	}
 #endif
 	otx2_qos_init(vf, qos_txqs);
 
-- 
2.25.1

Re: [net PATCH] octeontx2-pf: Avoid adding dcbnl_ops for LBK and SDP vf

[Simon Horman]

On Mon, May 19, 2025 at 12:56:58PM +0530, Suman Ghosh wrote:
> Priority flow control is not supported for LBK and SDP vf. This patch
> adds support to not add dcbnl_ops for LBK and SDP vf.
> 
> Fixes: 8e67558177f8 ("octeontx2-pf: PFC config support with DCBx")
> Signed-off-by: Suman Ghosh <sumang@marvell.com>

Reviewed-by: Simon Horman <horms@kernel.org>

Re: [net PATCH] octeontx2-pf: Avoid adding dcbnl_ops for LBK and SDP vf

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@redhat.com>:

On Mon, 19 May 2025 12:56:58 +0530 you wrote:
> Priority flow control is not supported for LBK and SDP vf. This patch
> adds support to not add dcbnl_ops for LBK and SDP vf.
> 
> Fixes: 8e67558177f8 ("octeontx2-pf: PFC config support with DCBx")
> Signed-off-by: Suman Ghosh <sumang@marvell.com>
> ---
>  drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 9 ++++++---
>  1 file changed, 6 insertions(+), 3 deletions(-)

Here is the summary with links:
  - [net] octeontx2-pf: Avoid adding dcbnl_ops for LBK and SDP vf
    https://git.kernel.org/netdev/net/c/184fb40f731b

You are awesome, thank you!
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