diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2023-01-19 18:04:27 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-01-23 13:13:08 +0000 |
| commit | 94557a9a73b4fa01c77a1a7409e9376e55d7bb99 (patch) | |
| tree | 1bd736245de5a2722e1e997479e23f3d8bdf9ec4 | |
| parent | e3972399bb57f3c0172f69010bc7613b13f513a4 (diff) | |
net: enetc: detect frame preemption hardware capability
Similar to other TSN features, query the Station Interface capability
register to see whether preemption is supported on this port or not.
On LS1028A, preemption is available on ports 0 and 2, but not on 1
and 3.
This will allow us in the future to write the pMAC registers only on the
ENETC ports where a pMAC actually exists.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc.h | 5 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_hw.h | 3 |
3 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index 07a6eef1d5ee..347e698cbedc 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -1713,6 +1713,9 @@ void enetc_get_si_caps(struct enetc_si *si) if (val & ENETC_SIPCAPR0_QBV) si->hw_features |= ENETC_SI_F_QBV; + if (val & ENETC_SIPCAPR0_QBU) + si->hw_features |= ENETC_SI_F_QBU; + if (val & ENETC_SIPCAPR0_PSFP) si->hw_features |= ENETC_SI_F_PSFP; } diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h index 6a87aa972e1e..cb227c93a07b 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.h +++ b/drivers/net/ethernet/freescale/enetc/enetc.h @@ -229,8 +229,9 @@ enum enetc_errata { ENETC_ERR_UCMCSWP = BIT(1), }; -#define ENETC_SI_F_QBV BIT(0) -#define ENETC_SI_F_PSFP BIT(1) +#define ENETC_SI_F_PSFP BIT(0) +#define ENETC_SI_F_QBV BIT(1) +#define ENETC_SI_F_QBU BIT(2) /* PCI IEP device data */ struct enetc_si { diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h index 18ca1f42b1f7..cc8f1afdc3bc 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h @@ -18,9 +18,10 @@ #define ENETC_SICTR0 0x18 #define ENETC_SICTR1 0x1c #define ENETC_SIPCAPR0 0x20 -#define ENETC_SIPCAPR0_QBV BIT(4) #define ENETC_SIPCAPR0_PSFP BIT(9) #define ENETC_SIPCAPR0_RSS BIT(8) +#define ENETC_SIPCAPR0_QBV BIT(4) +#define ENETC_SIPCAPR0_QBU BIT(3) #define ENETC_SIPCAPR1 0x24 #define ENETC_SITGTGR 0x30 #define ENETC_SIRBGCR 0x38 |