From 7c29451550cce0b548e58bf22c7822666e6e49af Mon Sep 17 00:00:00 2001 From: Stefan Chulski Date: Sun, 14 Feb 2021 16:10:03 +0200 Subject: net: mvpp2: reduce tx-fifo for loopback port 1KB is enough for loopback port, so 2KB can be distributed between other ports. Signed-off-by: Stefan Chulski Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/mvpp2/mvpp2.h | 4 ++-- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 10 +++++----- 2 files changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h index 373ede3a3239..8edba5ea90f0 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h @@ -763,9 +763,9 @@ #define MVPP2_RX_FIFO_PORT_MIN_PKT 0x80 /* TX FIFO constants */ -#define MVPP22_TX_FIFO_DATA_SIZE_16KB 16 +#define MVPP22_TX_FIFO_DATA_SIZE_18KB 18 #define MVPP22_TX_FIFO_DATA_SIZE_10KB 10 -#define MVPP22_TX_FIFO_DATA_SIZE_3KB 3 +#define MVPP22_TX_FIFO_DATA_SIZE_1KB 1 #define MVPP2_TX_FIFO_THRESHOLD_MIN 256 /* Bytes */ #define MVPP2_TX_FIFO_THRESHOLD(kb) \ ((kb) * 1024 - MVPP2_TX_FIFO_THRESHOLD_MIN) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index d167cfda6e00..ba18782a142d 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -7093,8 +7093,8 @@ static void mvpp22_tx_fifo_set_hw(struct mvpp2 *priv, int port, int size) } /* Initialize TX FIFO's: the total FIFO size is 19kB on PPv2.2 and PPv2.3. - * 3kB fixed space must be assigned for the loopback port. - * Redistribute remaining avialable 16kB space among all active ports. + * 1kB fixed space must be assigned for the loopback port. + * Redistribute remaining avialable 18kB space among all active ports. * The 10G interface should use 10kB (which is maximum possible size * per single port). */ @@ -7105,9 +7105,9 @@ static void mvpp22_tx_fifo_init(struct mvpp2 *priv) int size_remainder; int port, size; - /* The loopback requires fixed 3kB of the FIFO space assignment. */ + /* The loopback requires fixed 1kB of the FIFO space assignment. */ mvpp22_tx_fifo_set_hw(priv, MVPP2_LOOPBACK_PORT_INDEX, - MVPP22_TX_FIFO_DATA_SIZE_3KB); + MVPP22_TX_FIFO_DATA_SIZE_1KB); port_map = priv->port_map & ~BIT(MVPP2_LOOPBACK_PORT_INDEX); /* Set TX FIFO size to 0 for inactive ports. */ @@ -7115,7 +7115,7 @@ static void mvpp22_tx_fifo_init(struct mvpp2 *priv) mvpp22_tx_fifo_set_hw(priv, port, 0); /* Assign remaining TX FIFO space among all active ports. */ - size_remainder = MVPP22_TX_FIFO_DATA_SIZE_16KB; + size_remainder = MVPP22_TX_FIFO_DATA_SIZE_18KB; remaining_ports_count = hweight_long(port_map); for_each_set_bit(port, &port_map, MVPP2_LOOPBACK_PORT_INDEX) { -- cgit v1.2.3