From: Vineeth Karumanchi <vineeth.karumanchi@amd.com>
To: <theo.lebrun@bootlin.com>, <conor.dooley@microchip.com>,
<andrew+netdev@lunn.ch>, <davem@davemloft.net>,
<edumazet@google.com>, <kuba@kernel.org>, <pabeni@redhat.com>
Cc: <vineeth.karumanchi@amd.com>, <git@amd.com>,
<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH net-next v2 1/4] net: macb: Rename MACB_CAPS_QBV to MACB_CAPS_TC
Date: Wed, 9 Sep 2026 19:50:53 +0530 [thread overview]
Message-ID: <20260909142056.1433875-2-vineeth.karumanchi@amd.com> (raw)
In-Reply-To: <20260909142056.1433875-1-vineeth.karumanchi@amd.com>
The MACB_CAPS_QBV capability flag was originally introduced to
gate TAPRIO/QBV support. However, GEM IP versions that support
QBV also implement multiple TSN clauses.
Replace this with a generic capability flag that can be reused
by other TSN features. Rename MACB_CAPS_QBV to MACB_CAPS_TC to
better reflect its role as a general traffic-class offload capability.
The supported TSN clauses are handled through macb_setup_tc().
Signed-off-by: Vineeth Karumanchi <vineeth.karumanchi@amd.com>
---
Changes in v2:
- No functional change; rebased on net-next.
drivers/net/ethernet/cadence/macb.h | 2 +-
drivers/net/ethernet/cadence/macb_main.c | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index d6931c41f39d..f5359549f3d4 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -768,7 +768,7 @@
#define MACB_CAPS_MIIONRGMII BIT(9)
#define MACB_CAPS_NEED_TSUCLK BIT(10)
#define MACB_CAPS_QUEUE_DISABLE BIT(11)
-#define MACB_CAPS_QBV BIT(12)
+#define MACB_CAPS_TC BIT(12)
#define MACB_CAPS_PCS BIT(13)
#define MACB_CAPS_HIGH_SPEED BIT(14)
#define MACB_CAPS_CLK_HW_CHG BIT(15)
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index a427a5b9d894..8223ad81215b 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4823,8 +4823,8 @@ static int macb_init_dflt(struct platform_device *pdev)
netdev->hw_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM;
if (bp->caps & MACB_CAPS_SG_DISABLED)
netdev->hw_features &= ~NETIF_F_SG;
- /* Enable HW_TC if hardware supports QBV */
- if (bp->caps & MACB_CAPS_QBV)
+ /* Enable TC offload for TSN-capable hardware */
+ if (bp->caps & MACB_CAPS_TC)
netdev->hw_features |= NETIF_F_HW_TC;
netdev->features = netdev->hw_features;
@@ -5693,7 +5693,7 @@ static const struct macb_config versal_config = {
.caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_JUMBO |
MACB_CAPS_GEM_HAS_PTP | MACB_CAPS_BD_RD_PREFETCH |
MACB_CAPS_NEED_TSUCLK | MACB_CAPS_QUEUE_DISABLE |
- MACB_CAPS_QBV |
+ MACB_CAPS_TC |
MACB_CAPS_USRIO_HAS_MII,
.dma_burst_length = 16,
.init = init_reset_optional,
--
2.43.0
next prev parent reply other threads:[~2026-09-09 14:21 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-09 14:20 [PATCH net-next v2 0/4] net: macb: Add TSN MQPRIO and CBS traffic-class offload Vineeth Karumanchi
2026-09-09 14:20 ` Vineeth Karumanchi [this message]
2026-09-17 9:37 ` [PATCH net-next v2 1/4] net: macb: Rename MACB_CAPS_QBV to MACB_CAPS_TC Théo Lebrun
2026-09-09 14:20 ` [PATCH net-next v2 2/4] net: macb: Move TC capability and PM checks to macb_setup_tc() Vineeth Karumanchi
2026-09-10 14:44 ` netdev-bot+sashiko
2026-09-15 13:40 ` Karumanchi, Vineeth
2026-09-09 14:20 ` [PATCH net-next v2 3/4] net: macb: Add MQPRIO qdisc hardware offload support Vineeth Karumanchi
2026-09-10 14:44 ` netdev-bot+sashiko
2026-09-17 9:22 ` Théo Lebrun
2026-09-17 13:57 ` Karumanchi, Vineeth
2026-09-09 14:20 ` [PATCH net-next v2 4/4] net: macb: Add TSN CBS TC " Vineeth Karumanchi
2026-09-10 14:44 ` netdev-bot+sashiko
2026-09-17 9:32 ` Théo Lebrun
2026-10-08 15:27 ` Karumanchi, Vineeth
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