Commit f07b5880 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

bnxt_en: Add macros related to TC and TX rings 



Add 3 macros that handle to conversions between TC numbers and TX
ring numbers.  These will help to clarify the existing logic and the
new logic in the next patch.

Reviewed-by: default avatarAndy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f5b29c6a

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

+11 −2
Original line number Diff line number Diff line
@@ -3415,6 +3415,15 @@ static void bnxt_free_tx_rings(struct bnxt *bp) 
	}

}



#define BNXT_TC_TO_RING_BASE(bp, tc)	\

	((tc) * (bp)->tx_nr_rings_per_tc)



#define BNXT_RING_TO_TC_OFF(bp, tx)	\

	((tx) % (bp)->tx_nr_rings_per_tc)



#define BNXT_RING_TO_TC(bp, tx)		\

	((tx) / (bp)->tx_nr_rings_per_tc)



static int bnxt_alloc_tx_rings(struct bnxt *bp)

{

	int i, j, rc;
@@ -3470,7 +3479,7 @@ static int bnxt_alloc_tx_rings(struct bnxt *bp) 
		spin_lock_init(&txr->xdp_tx_lock);

		if (i < bp->tx_nr_rings_xdp)

			continue;

		if (i % bp->tx_nr_rings_per_tc == (bp->tx_nr_rings_per_tc - 1))

		if (BNXT_RING_TO_TC_OFF(bp, i) == (bp->tx_nr_rings_per_tc - 1))

			j++;

	}

	return 0;
@@ -9140,7 +9149,7 @@ static void bnxt_setup_msix(struct bnxt *bp) 


		for (i = 0; i < tcs; i++) {

			count = bp->tx_nr_rings_per_tc;

			off = i * count;

			off = BNXT_TC_TO_RING_BASE(bp, i);

			netdev_set_tc_queue(dev, i, count, off);

		}

	}