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path: root/drivers/net/fec_1588.c
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Diffstat (limited to 'drivers/net/fec_1588.c')
-rw-r--r--drivers/net/fec_1588.c65
1 files changed, 35 insertions, 30 deletions
diff --git a/drivers/net/fec_1588.c b/drivers/net/fec_1588.c
index 5babcc29de78..37b1b01778fd 100644
--- a/drivers/net/fec_1588.c
+++ b/drivers/net/fec_1588.c
@@ -35,7 +35,7 @@
static DECLARE_WAIT_QUEUE_HEAD(ptp_rx_ts_wait);
#define PTP_GET_RX_TIMEOUT (HZ/10)
-static struct fec_ptp_private *ptp_private;
+static struct fec_ptp_private *ptp_private[2];
/* Alloc the ring resource */
static int fec_ptp_init_circ(struct circ_buf *ptp_buf)
@@ -88,14 +88,15 @@ static int fec_ptp_is_full(struct circ_buf *buf)
}
static int fec_ptp_insert(struct circ_buf *ptp_buf,
- struct fec_ptp_data_t *data)
+ struct fec_ptp_data_t *data,
+ struct fec_ptp_private *priv)
{
struct fec_ptp_data_t *tmp;
if (fec_ptp_is_full(ptp_buf))
return 1;
- spin_lock(&ptp_private->ptp_lock);
+ spin_lock(&priv->ptp_lock);
tmp = (struct fec_ptp_data_t *)(ptp_buf->buf) + ptp_buf->tail;
tmp->key = data->key;
@@ -104,13 +105,15 @@ static int fec_ptp_insert(struct circ_buf *ptp_buf,
ptp_buf->tail = fec_ptp_calc_index(DEFAULT_PTP_RX_BUF_SZ,
ptp_buf->tail, 1);
- spin_unlock(&ptp_private->ptp_lock);
+ spin_unlock(&priv->ptp_lock);
return 0;
}
static int fec_ptp_find_and_remove(struct circ_buf *ptp_buf,
- int key, struct fec_ptp_data_t *data)
+ int key,
+ struct fec_ptp_data_t *data,
+ struct fec_ptp_private *priv)
{
int i;
int size = DEFAULT_PTP_RX_BUF_SZ;
@@ -129,10 +132,10 @@ static int fec_ptp_find_and_remove(struct circ_buf *ptp_buf,
i = fec_ptp_calc_index(size, i, 1);
}
- spin_lock_irqsave(&ptp_private->ptp_lock, flags);
+ spin_lock_irqsave(&priv->ptp_lock, flags);
if (i == end) {
ptp_buf->head = end;
- spin_unlock_irqrestore(&ptp_private->ptp_lock, flags);
+ spin_unlock_irqrestore(&priv->ptp_lock, flags);
return 1;
}
@@ -140,7 +143,7 @@ static int fec_ptp_find_and_remove(struct circ_buf *ptp_buf,
data->ts_time.nsec = tmp->ts_time.nsec;
ptp_buf->head = fec_ptp_calc_index(size, i, 1);
- spin_unlock_irqrestore(&ptp_private->ptp_lock, flags);
+ spin_unlock_irqrestore(&priv->ptp_lock, flags);
return 0;
}
@@ -154,9 +157,9 @@ int fec_ptp_start(struct fec_ptp_private *priv)
writel(FEC_T_CTRL_RESTART, fpp->hwp + FEC_ATIME_CTRL);
writel(FEC_T_INC_40MHZ << FEC_T_INC_OFFSET, fpp->hwp + FEC_ATIME_INC);
writel(FEC_T_PERIOD_ONE_SEC, fpp->hwp + FEC_ATIME_EVT_PERIOD);
- writel(FEC_T_CTRL_PERIOD_RST, fpp->hwp + FEC_ATIME_CTRL);
/* start counter */
- writel(FEC_T_CTRL_ENABLE, fpp->hwp + FEC_ATIME_CTRL);
+ writel(FEC_T_CTRL_PERIOD_RST | FEC_T_CTRL_ENABLE,
+ fpp->hwp + FEC_ATIME_CTRL);
return 0;
}
@@ -190,12 +193,12 @@ static void fec_set_1588cnt(struct fec_ptp_private *priv,
u32 tempval;
unsigned long flags;
- spin_lock_irqsave(&ptp_private->cnt_lock, flags);
+ spin_lock_irqsave(&priv->cnt_lock, flags);
priv->prtc = fec_time->rtc_time.sec;
tempval = fec_time->rtc_time.nsec;
writel(tempval, priv->hwp + FEC_ATIME);
- spin_unlock_irqrestore(&ptp_private->cnt_lock, flags);
+ spin_unlock_irqrestore(&priv->cnt_lock, flags);
}
/* Set the BD to ptp */
@@ -207,11 +210,11 @@ int fec_ptp_do_txstamp(struct sk_buff *skb)
if (skb->len > 44) {
/* Check if port is 319 for PTP Event, and check for UDP */
iph = ip_hdr(skb);
- if (iph->protocol != FEC_PACKET_TYPE_UDP)
+ if (iph == NULL || iph->protocol != FEC_PACKET_TYPE_UDP)
return 0;
udph = udp_hdr(skb);
- if (udph->source == 319)
+ if (udph != NULL && udph->source == 319)
return 1;
}
@@ -257,11 +260,11 @@ void fec_ptp_store_rxstamp(struct fec_ptp_private *priv,
switch (control) {
case PTP_MSG_SYNC:
- fec_ptp_insert(&(priv->rx_time_sync), &tmp_rx_time);
+ fec_ptp_insert(&(priv->rx_time_sync), &tmp_rx_time, priv);
break;
case PTP_MSG_DEL_REQ:
- fec_ptp_insert(&(priv->rx_time_del_req), &tmp_rx_time);
+ fec_ptp_insert(&(priv->rx_time_del_req), &tmp_rx_time, priv);
break;
/* clear transportSpecific field*/
@@ -271,11 +274,11 @@ void fec_ptp_store_rxstamp(struct fec_ptp_private *priv,
switch (msg_type) {
case PTP_MSG_P_DEL_REQ:
fec_ptp_insert(&(priv->rx_time_pdel_req),
- &tmp_rx_time);
+ &tmp_rx_time, priv);
break;
case PTP_MSG_P_DEL_RESP:
fec_ptp_insert(&(priv->rx_time_pdel_resp),
- &tmp_rx_time);
+ &tmp_rx_time, priv);
break;
default:
break;
@@ -308,20 +311,20 @@ static uint8_t fec_get_rx_time(struct fec_ptp_private *priv,
switch (mode) {
case PTP_MSG_SYNC:
flag = fec_ptp_find_and_remove(&(priv->rx_time_sync),
- key, &tmp);
+ key, &tmp, priv);
break;
case PTP_MSG_DEL_REQ:
flag = fec_ptp_find_and_remove(&(priv->rx_time_del_req),
- key, &tmp);
+ key, &tmp, priv);
break;
case PTP_MSG_P_DEL_REQ:
flag = fec_ptp_find_and_remove(&(priv->rx_time_pdel_req),
- key, &tmp);
+ key, &tmp, priv);
break;
case PTP_MSG_P_DEL_RESP:
flag = fec_ptp_find_and_remove(&(priv->rx_time_pdel_resp),
- key, &tmp);
+ key, &tmp, priv);
break;
default:
@@ -341,19 +344,19 @@ static uint8_t fec_get_rx_time(struct fec_ptp_private *priv,
switch (mode) {
case PTP_MSG_SYNC:
flag = fec_ptp_find_and_remove(&(priv->rx_time_sync),
- key, &tmp);
+ key, &tmp, priv);
break;
case PTP_MSG_DEL_REQ:
flag = fec_ptp_find_and_remove(
- &(priv->rx_time_del_req), key, &tmp);
+ &(priv->rx_time_del_req), key, &tmp, priv);
break;
case PTP_MSG_P_DEL_REQ:
flag = fec_ptp_find_and_remove(
- &(priv->rx_time_pdel_req), key, &tmp);
+ &(priv->rx_time_pdel_req), key, &tmp, priv);
break;
case PTP_MSG_P_DEL_RESP:
flag = fec_ptp_find_and_remove(
- &(priv->rx_time_pdel_resp), key, &tmp);
+ &(priv->rx_time_pdel_resp), key, &tmp, priv);
break;
}
@@ -388,9 +391,10 @@ static int ptp_ioctl(
struct ptp_time rx_time, tx_time;
struct ptp_ts_data *p_ts;
struct fec_ptp_private *priv;
+ unsigned int minor = MINOR(inode->i_rdev);
int retval = 0;
- priv = (struct fec_ptp_private *) ptp_private;
+ priv = (struct fec_ptp_private *) ptp_private[minor];
switch (cmd) {
case PTP_GET_RX_TIMESTAMP:
p_ts = (struct ptp_ts_data *)arg;
@@ -466,7 +470,7 @@ static void ptp_free(void)
/*
* Resource required for accessing 1588 Timer Registers.
*/
-int fec_ptp_init(struct fec_ptp_private *priv)
+int fec_ptp_init(struct fec_ptp_private *priv, int id)
{
fec_ptp_init_circ(&(priv->rx_time_sync));
fec_ptp_init_circ(&(priv->rx_time_del_req));
@@ -475,8 +479,9 @@ int fec_ptp_init(struct fec_ptp_private *priv)
spin_lock_init(&priv->ptp_lock);
spin_lock_init(&priv->cnt_lock);
- ptp_private = priv;
- init_ptp();
+ ptp_private[id] = priv;
+ if (id == 0)
+ init_ptp();
return 0;
}
EXPORT_SYMBOL(fec_ptp_init);
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-01 12:18:51 +0000