Commit d28ea7ac authored Aug 17, 2023 by Hariprasad Kelam Committed by Greg Kroah-Hartman Aug 30, 2023

octeontx2-af: SDP: fix receive link config



[ Upstream commit 05f3d5bc23524bed6f043dfe6b44da687584f9fb ]

On SDP interfaces, frame oversize and undersize errors are
observed as driver is not considering packet sizes of all
subscribers of the link before updating the link config.

This patch fixes the same.

Fixes: 9b7dd87a ("octeontx2-af: Support to modify min/max allowed packet lengths")
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230817063006.10366-1-hkelam@marvell.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 05319d70

drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -2430,9 +2430,10 @@ int rvu_mbox_handler_nix_set_hw_frs(struct rvu rvu, struct nix_frs_cfg req,
		if (link < 0)
		return NIX_AF_ERR_RX_LINK_INVALID;

		nix_find_link_frs(rvu, req, pcifunc);

		linkcfg:
		nix_find_link_frs(rvu, req, pcifunc);

		cfg = rvu_read64(rvu, blkaddr, NIX_AF_RX_LINKX_CFG(link));
		cfg = (cfg & ~(0xFFFFULL << 16)) \| ((u64)req->maxlen << 16);
		if (req->update_minlen)