[PATCH 07/10] ravb: Add tsrq to struct ravb_hw_info
From: Biju Das <biju.das.jz@bp.renesas.com>
Date: 2021-10-01 15:07:21
Also in:
linux-renesas-soc
Subsystem:
networking drivers, renesas ethernet avb driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Niklas Söderlund, Linus Torvalds
R-Car AVB-DMAC has 4 Transmit start request queues, whereas RZ/G2L has only 1 Transmit start request queue. Add a tsrq variable to struct ravb_hw_info to handle this difference. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> --- RFC->v1: * Added tsrq variable instead of multi_tsrq feature bit. --- drivers/net/ethernet/renesas/ravb.h | 1 + drivers/net/ethernet/renesas/ravb_main.c | 9 +++++++-- 2 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index 9cd3a15743b4..c586070193ef 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h@@ -997,6 +997,7 @@ struct ravb_hw_info { netdev_features_t net_features; int stats_len; size_t max_rx_len; + u32 tsrq; unsigned aligned_tx: 1; /* hardware features */
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index ac141a491ca2..4784832bd93c 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c@@ -790,11 +790,13 @@ static void ravb_rcv_snd_enable(struct net_device *ndev) /* function for waiting dma process finished */ static int ravb_stop_dma(struct net_device *ndev) { + struct ravb_private *priv = netdev_priv(ndev); + const struct ravb_hw_info *info = priv->info; int error; /* Wait for stopping the hardware TX process */ - error = ravb_wait(ndev, TCCR, - TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3, 0); + error = ravb_wait(ndev, TCCR, info->tsrq, 0); + if (error) return error;
@@ -2128,6 +2130,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = { .net_features = NETIF_F_RXCSUM, .stats_len = ARRAY_SIZE(ravb_gstrings_stats), .max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1, + .tsrq = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3, .internal_delay = 1, .tx_counters = 1, .multi_irqs = 1,
@@ -2150,6 +2153,7 @@ static const struct ravb_hw_info ravb_gen2_hw_info = { .net_features = NETIF_F_RXCSUM, .stats_len = ARRAY_SIZE(ravb_gstrings_stats), .max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1, + .tsrq = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3, .aligned_tx = 1, .gptp = 1, .nc_queue = 1,
@@ -2165,6 +2169,7 @@ static const struct ravb_hw_info gbeth_hw_info = { .dmac_init = ravb_dmac_init_gbeth, .emac_init = ravb_emac_init_gbeth, .max_rx_len = GBETH_RX_BUFF_MAX + RAVB_ALIGN - 1, + .tsrq = TCCR_TSRQ0, .aligned_tx = 1, .tx_counters = 1, };
--
2.17.1