stmmac: add IEEE PTPv1 and PTPv2 support.
This patch enhances the stmmac driver to support IEEE 1588-2002
PTP (Precision Time Protocol) version 1 and IEEE 1588-2008 PPT
version 2.
Precision Time Protocol(PTP),which enables precise synchronization
of clocks in measurement and control systems implemented with
technologies such as network communication,local computing,
& distributed objects.
Both PTPv1 and PTPv2 is selected at run-time using the HW capability
register.
The PTPv1 TimeStamp support can be used on chips that have the normal
descriptor structures and PTPv2 TimeStamp support can be used on chips
that have the Extended descriptors(DES4-5-6-7). All such sanity checks
are done and verified by using HW capability register.
V2: in this version the ethtool support has been included in this patch;
Koptions have been completely removed (previously added to select
PTP and PTPv2). PTPv1 and PTPv2 is now added in a single patch instead of
two patches.
get_timestamp() and get_systemtime() L/H have been combined into single APIs.
Signed-off-by: Rayagond Kokatanur <rayagond@vayavyalabs.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 942fdce..6fa975c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -339,6 +339,14 @@
struct dma_desc *p);
void (*rx_extended_status) (void *data, struct stmmac_extra_stats *x,
struct dma_extended_desc *p);
+ /* Set tx timestamp enable bit */
+ void (*enable_tx_timestamp) (struct dma_desc *p);
+ /* get tx timestamp status */
+ int (*get_tx_timestamp_status) (struct dma_desc *p);
+ /* get timestamp value */
+ u64 (*get_timestamp) (void *desc, u32 ats);
+ /* get rx timestamp status */
+ int (*get_rx_timestamp_status) (void *desc, u32 ats);
};
struct stmmac_dma_ops {
@@ -398,6 +406,13 @@
void (*get_adv) (void __iomem *ioaddr, struct rgmii_adv *adv);
};
+struct stmmac_hwtimestamp {
+ void (*config_hw_tstamping) (void __iomem *ioaddr, u32 data);
+ void (*config_sub_second_increment) (void __iomem *ioaddr);
+ int (*init_systime) (void __iomem *ioaddr, u32 sec, u32 nsec);
+ int (*config_addend)(void __iomem *ioaddr, u32 addend);
+};
+
struct mac_link {
int port;
int duplex;
@@ -412,9 +427,9 @@
struct stmmac_ring_mode_ops {
unsigned int (*is_jumbo_frm) (int len, int ehn_desc);
unsigned int (*jumbo_frm) (void *priv, struct sk_buff *skb, int csum);
- void (*refill_desc3) (int bfsize, struct dma_desc *p);
+ void (*refill_desc3) (void *priv, struct dma_desc *p);
void (*init_desc3) (struct dma_desc *p);
- void (*clean_desc3) (struct dma_desc *p);
+ void (*clean_desc3) (void *priv, struct dma_desc *p);
int (*set_16kib_bfsize) (int mtu);
};
@@ -423,6 +438,8 @@
unsigned int extend_desc);
unsigned int (*is_jumbo_frm) (int len, int ehn_desc);
unsigned int (*jumbo_frm) (void *priv, struct sk_buff *skb, int csum);
+ void (*refill_desc3) (void *priv, struct dma_desc *p);
+ void (*clean_desc3) (void *priv, struct dma_desc *p);
};
struct mac_device_info {
@@ -431,6 +448,7 @@
const struct stmmac_dma_ops *dma;
const struct stmmac_ring_mode_ops *ring;
const struct stmmac_chain_mode_ops *chain;
+ const struct stmmac_hwtimestamp *ptp;
struct mii_regs mii; /* MII register Addresses */
struct mac_link link;
unsigned int synopsys_uid;