Fallback to all multicast mode if FW rejects multicast filter programming. The firmware can reject the MC filter programming request if it is running low in resources when there is a large number of functions. The driver must be prepared to fallback to the all-multicast mode if the original MC filter programming request is rejected.
Signed-off-by: Ajit Khaparde <ajit.khapa...@broadcom.com>
Reviewed-by: Damodharam Ammepalli <damodharam.ammepa...@broadcom.com>
---
drivers/net/bnxt/bnxt_ethdev.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 5b775e7716..7aed6d3ab6 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -2947,7 +2947,17 @@ bnxt_dev_set_mc_addr_list_op(struct rte_eth_dev *eth_dev,
vnic->flags &= ~BNXT_VNIC_INFO_MCAST;
allmulti:
- return bnxt_hwrm_cfa_l2_set_rx_mask(bp, vnic, 0, NULL);
+ rc = bnxt_hwrm_cfa_l2_set_rx_mask(bp, vnic, 0, NULL);
+ if (rc == -ENOSPC && (vnic->flags & BNXT_VNIC_INFO_MCAST)) {
+ /* If MCAST addition failed because FW ran out of
+ * multicast filters, enable all multicast mode.
+ */
+ vnic->flags &= ~BNXT_VNIC_INFO_MCAST;
+ vnic->flags |= BNXT_VNIC_INFO_ALLMULTI;
+ goto allmulti;
+ }
+
+ return rc;
}
static int
--
2.39.2 (Apple Git-143)
smime.p7s
Description: S/MIME Cryptographic Signature
