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Octeontx2-af: Disable stale DMAC filters

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

Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250720163638.1560323-3-hkelam@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Subbaraya Sundeep
2025-07-20 22:06:36 +05:30
committed by Paolo Abeni
parent dd47fc6769
commit 83d17aba92
1 changed files with 13 additions and 0 deletions
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13
drivers/net/ethernet/marvell/octeontx2/af/cgx.c
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@@ -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 */