diff options
| author | Vineeth Karumanchi <vineeth.karumanchi@amd.com> | 2025-08-14 12:40:58 +0530 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-08-19 12:13:03 +0200 |
| commit | d739ce4bebf4c708020a900548e36d005236388f (patch) | |
| tree | ca3675c2df92d67ba031f3ae4b3cd3563e6f2a92 /drivers/net/ethernet/cadence/macb_main.c | |
| parent | 89934dbf169e358b57c2b394bb51a57d3f259dc0 (diff) | |
net: macb: Add capability-based QBV detection and Versal support
The 'exclude_qbv' bit in the designcfg_debug1 register varies across
MACB/GEM IP revisions, making direct probing unreliable for detecting
QBV support. This patch introduces a capability-based approach for
consistent QBV feature identification across the IP family.
Platform support updates:
- Establish foundation for QBV detection in TAPRIO implementation
- Enable MACB_CAPS_QBV for Xilinx Versal platform configuration
- Fix capability line wrapping, ensuring code stays within 80 columns
Signed-off-by: Vineeth Karumanchi <vineeth.karumanchi@amd.com>
Link: https://patch.msgid.link/20250814071058.3062453-3-vineeth.karumanchi@amd.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/cadence/macb_main.c')
| -rw-r--r-- | drivers/net/ethernet/cadence/macb_main.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index a42304eb2bf8..124ef0b0bcad 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -4602,6 +4602,10 @@ static int macb_init(struct platform_device *pdev) dev->hw_features |= NETIF_F_HW_CSUM | NETIF_F_RXCSUM; if (bp->caps & MACB_CAPS_SG_DISABLED) dev->hw_features &= ~NETIF_F_SG; + /* Enable HW_TC if hardware supports QBV */ + if (bp->caps & MACB_CAPS_QBV) + dev->hw_features |= NETIF_F_HW_TC; + dev->features = dev->hw_features; /* Check RX Flow Filters support. @@ -5354,8 +5358,9 @@ static const struct macb_config sama7g5_emac_config = { 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_GEM_HAS_PTP | MACB_CAPS_BD_RD_PREFETCH | + MACB_CAPS_NEED_TSUCLK | MACB_CAPS_QUEUE_DISABLE | + MACB_CAPS_QBV, .dma_burst_length = 16, .clk_init = macb_clk_init, .init = init_reset_optional, |