bnxt_en: Adjust default rings for multi-port NICs. (1d3ef13d) · Commits · 戴 / test

Change the default ring logic to select default number of rings to be up to 8 per port if the default rings x NIC ports <= total CPUs. Signed-off-by:

drivers/net/ethernet/broadcom/bnxt/bnxt.c

+9 −3

Original line number	Diff line number	Diff line
		@@ -8393,9 +8393,15 @@ static int bnxt_set_dflt_rings(struct bnxt *bp, bool sh)
		if (sh)
		bp->flags \|= BNXT_FLAG_SHARED_RINGS;
		dflt_rings = netif_get_num_default_rss_queues();
		/* Reduce default rings to reduce memory usage on multi-port cards */
		if (bp->port_count > 1)
		dflt_rings = min_t(int, dflt_rings, 4);
		/* Reduce default rings on multi-port cards so that total default
		* rings do not exceed CPU count.
		*/
		if (bp->port_count > 1) {
		int max_rings =
		max_t(int, num_online_cpus() / bp->port_count, 1);

		dflt_rings = min_t(int, dflt_rings, max_rings);
		}
		rc = bnxt_get_dflt_rings(bp, &max_rx_rings, &max_tx_rings, sh);
		if (rc)
		return rc;