[PATCH 19.11 7/8] net/bnxt: get maximum supported multicast filters count

[Kalesh A P]

From: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>

[ upstream commit bc9b2c20d29eea7cf1fbf098d69016bc4edb8c2e ]

The HWRM_FUNC_QCAPS response indicates the maximum number
of multicast filters that can be supported by this function
on the RX side.

Fixed to use this value instead of the hard coded value 16.

Fixes: d69851df12b2 ("net/bnxt: support multicast filter and set MAC addr")

Signed-off-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
---
 drivers/net/bnxt/bnxt.h      | 3 ++-
 drivers/net/bnxt/bnxt_hwrm.c | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index c850945..fd36252 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -711,10 +711,11 @@ struct bnxt {
 	struct bnxt_ring_stats	*prev_rx_ring_stats;
 	struct bnxt_ring_stats	*prev_tx_ring_stats;
 
-#define BNXT_MAX_MC_ADDRS	16
+#define BNXT_MAX_MC_ADDRS	((bp)->max_mcast_addr)
 	struct rte_ether_addr	*mcast_addr_list;
 	rte_iova_t		mc_list_dma_addr;
 	uint32_t		nb_mc_addr;
+	uint32_t		max_mcast_addr; /* maximum number of mcast filters supported */
 
 	struct rte_eth_rss_conf	rss_conf; /* RSS configuration. */
 };
diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 472bb7c..90434d1 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -710,6 +710,8 @@ static int __bnxt_hwrm_func_qcaps(struct bnxt *bp)
 		bp->max_vnics = 1;
 	}
 	bp->max_stat_ctx = rte_le_to_cpu_16(resp->max_stat_ctx);
+	bp->max_mcast_addr = rte_le_to_cpu_32(resp->max_mcast_filters);
+
 	if (BNXT_PF(bp)) {
 		bp->pf.total_vnics = rte_le_to_cpu_16(resp->max_vnics);
 		if (flags & HWRM_FUNC_QCAPS_OUTPUT_FLAGS_PTP_SUPPORTED) {
-- 
2.10.1