Commit 83d17aba authored by Subbaraya Sundeep's avatar Subbaraya Sundeep Committed by Paolo Abeni
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Octeontx2-af: Disable stale DMAC filters 



During driver initialization disable stale DMAC filters
in CGX/RPM set by firmware.

Signed-off-by: default avatarSubbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: default avatarHariprasad Kelam <hkelam@marvell.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250720163638.1560323-3-hkelam@marvell.com


Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
parent dd47fc67

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

+13 −0
Original line number Diff line number Diff line
@@ -1704,9 +1704,11 @@ unsigned long cgx_get_lmac_bmap(void *cgxd) 


static int cgx_lmac_init(struct cgx *cgx)

{

	u8 max_dmac_filters;

	struct lmac *lmac;

	u64 lmac_list;

	int i, err;

	int filter;



	/* lmac_list specifies which lmacs are enabled

	 * when bit n is set to 1, LMAC[n] is enabled
@@ -1745,6 +1747,8 @@ static int cgx_lmac_init(struct cgx *cgx) 
				cgx->mac_ops->dmac_filter_count /

				cgx->lmac_count;



		max_dmac_filters = lmac->mac_to_index_bmap.max;



		err = rvu_alloc_bitmap(&lmac->mac_to_index_bmap);

		if (err)

			goto err_name_free;
@@ -1774,6 +1778,15 @@ static int cgx_lmac_init(struct cgx *cgx) 
		set_bit(lmac->lmac_id, &cgx->lmac_bmap);

		cgx->mac_ops->mac_pause_frm_config(cgx, lmac->lmac_id, true);

		lmac->lmac_type = cgx->mac_ops->get_lmac_type(cgx, lmac->lmac_id);



		/* Disable stale DMAC filters for sane state */

		for (filter = 0; filter < max_dmac_filters; filter++)

			cgx_lmac_addr_del(cgx->cgx_id, lmac->lmac_id, filter);



		/* As cgx_lmac_addr_del does not clear entry for index 0

		 * so it needs to be done explicitly

		 */

		cgx_lmac_addr_reset(cgx->cgx_id, lmac->lmac_id);

	}



	/* Start X2P reset on given MAC block */